WO2025227896A1 - 冷媒换热部件、电池装置及用电装置 - Google Patents

冷媒换热部件、电池装置及用电装置

Info

Publication number
WO2025227896A1
WO2025227896A1 PCT/CN2025/078590 CN2025078590W WO2025227896A1 WO 2025227896 A1 WO2025227896 A1 WO 2025227896A1 CN 2025078590 W CN2025078590 W CN 2025078590W WO 2025227896 A1 WO2025227896 A1 WO 2025227896A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchange
refrigerant heat
channel
plate
battery device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/078590
Other languages
English (en)
French (fr)
Inventor
高邦
侯跃攀
李兴星
黄小腾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to CN202580003841.4A priority Critical patent/CN121620830A/zh
Publication of WO2025227896A1 publication Critical patent/WO2025227896A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • This application relates to the field of battery technology, and in particular to a refrigerant heat exchange component, a battery device, and an electrical device.
  • the embodiments of this application provide a refrigerant heat exchange component, a battery device, and an electrical device, which have high reliability.
  • An embodiment of the first aspect of this application provides a battery device, including: a housing; a battery cell assembly disposed within the housing; and a refrigerant heat exchange component configured to exchange heat with the battery cell assembly.
  • the refrigerant heat exchange component includes at least a first plate and a second plate stacked together, the first plate and the second plate forming a refrigerant heat exchange channel.
  • the first plate has a welding portion, and the second plate is welded to the welding portion.
  • the welding portion has a material-containing space with an opening facing the second plate. The material-containing space is disposed adjacent to the refrigerant heat exchange channel to prevent solder from flowing into the refrigerant heat exchange channel.
  • the battery device provided in this application includes a housing, a battery cell assembly, and a refrigerant heat exchange component.
  • a refrigerant heat exchange channel is formed within the refrigerant heat exchange component to perform thermal management on the battery cell assembly, improving the reliability of battery operation.
  • the refrigerant heat exchange component includes at least a first plate and a second plate.
  • a material-containing space is provided within the welding portion of the first plate, with the opening of the material-containing space facing the second plate. By providing the material-containing space, the contact area between the first plate and the second plate is reduced, correspondingly reducing the welding area. Simultaneously, the material-containing space blocks the path of solder moving towards the refrigerant heat exchange channel, and can also store excess solder.
  • the solution provided in this application reduces the problem of solder flowing into the refrigerant heat exchange channel and causing blockage, thereby reducing the risk of functional abnormalities in the refrigerant heat exchange component and battery thermal management failure caused by blockage of the refrigerant heat exchange channel, improving the reliability of the battery device, increasing the welding yield of the refrigerant heat exchange component, and reducing the cost of the refrigerant heat exchange component.
  • the welding part includes a plurality of spaced connection areas, at least one of which has a material holding space; on one side of the refrigerant heat exchange channel, the material holding space divides the connection area into a first area and a second area distributed along a preset direction, the first area being located between the refrigerant heat exchange channel and the material holding space, and the material holding space being used to prevent the solder from flowing from the second area to the first area.
  • the material storage space can prevent the solder in the second region from flowing towards the first region, thereby protecting the refrigerant heat exchange channel.
  • the width of the first region is less than or equal to the width of the second region along a preset direction.
  • the distance between the material storage space and the adjacent part of the refrigerant heat exchange channel is less than or equal to the distance between the material storage space and the side of the connection area away from the part of the refrigerant heat exchange channel.
  • the distance between the material storage space and the refrigerant heat exchange channel is relatively short, resulting in a better anti-clogging effect.
  • a flow channel is recessed on the side of the first plate facing the second plate, and the flow channel and the second plate together form a refrigerant heat exchange flow channel.
  • the material holding space and the flow channel are both fabricated on the first plate, and the second plate can be a flat plate structure.
  • the fabrication method of the refrigerant heat exchange component is simple and convenient, and the fabrication efficiency is high.
  • the preset distance between the refrigerant heat exchange channel and the material storage space is less than or equal to 35mm, which can effectively reduce the risk of blockage of the refrigerant heat exchange channel.
  • the preset distance ranges from 5mm to 20mm.
  • the welding section is provided with a material receiving tank, and the interior of the material receiving tank forms a material receiving space.
  • the material tank is strip-shaped and extends along a portion of the refrigerant heat exchange channel adjacent to it.
  • the material tank can reduce the welding area of the welded part.
  • the material tank extends along the refrigerant heat exchange channel, which reduces the risk of weld blockage in the refrigerant heat exchange channel at least within its length range, and the anti-blockage effect is better.
  • the width of the material container is 5mm to 20mm, and/or the depth of the material container is 2mm to 3mm.
  • the material tank can hold more solder and avoid the refrigerant heat exchange components being too thick and occupying too much space.
  • the width of the refrigerant heat exchange channel is 5 mm to 20 mm, and/or the depth of the refrigerant heat exchange channel is 2 mm to 3 mm.
  • the refrigerant heat exchange channel can have a sufficient flow of refrigerant without excessive operating pressure.
  • the welded part is provided with a through hole, and the interior of the through hole forms a material-containing space.
  • the through holes can separate the refrigerant heat exchange channel from the weld area with a large weld width. Furthermore, the through holes can accommodate and/or discharge excess solder, further reducing the risk of weld blockage.
  • the through hole is circular, and the diameter of the through hole is 3mm to 15mm.
  • the size of the through hole can be adapted to the size of the refrigerant heat exchange component, and the through hole has little impact on the structural strength of the refrigerant heat exchange component.
  • the welding part is provided with at least one of a material receiving groove and a through hole, and a material receiving space is formed in the material receiving groove and/or the through hole.
  • the refrigerant heat exchange component can be equipped with a material tank and/or through holes according to its installation requirements, size and other conditions, and the material tank and through holes can be used in combination to achieve the effect of preventing weld blockage.
  • the first plate has a flow channel region and a peripheral region located outside the flow channel region, the refrigerant heat exchange flow channel is located in the flow channel region, and the welded part is located in both the flow channel region and the peripheral region; the material holding space includes a first material holding space located in the peripheral region.
  • the first material storage space is located in the outer area, which can separate the wider part of the outer area from the refrigerant heat exchange channel, reducing the risk of weld blockage in the refrigerant heat exchange channel.
  • the first material space is disposed on one side of the first plate, and the distance from the first material space to the refrigerant heat exchange channel is less than the distance from the first material space to the edge of the first plate; and/or, along the width direction of the first plate, the first material space is disposed on one side of the first plate, and the distance from the first material space to the refrigerant heat exchange channel is less than the distance from the first material space to the edge of the first plate.
  • the distance between the first material storage space and the refrigerant heat exchange channel is relatively small, which can separate the refrigerant heat exchange channel from the area with a large welding width around the heat exchange plate, resulting in a better anti-blocking effect.
  • the first material holding space extends along the edge of the flow channel region; and/or, there are multiple first material holding spaces arranged along the edge of the flow channel region.
  • the first material space can be set along the extension direction of the refrigerant heat exchange channel to adapt to the length of the refrigerant heat exchange channel, thereby providing a more comprehensive anti-blocking welding effect for the refrigerant heat exchange channel.
  • the material storage space further includes one or more second material storage spaces, which are located within the flow channel region.
  • the refrigerant heat exchange channel includes a plurality of parallel branch channels, each branch channel including an inlet branch channel, a return branch channel, and a plurality of sub-channels connected between the inlet branch channel and the return branch channel.
  • the plurality of sub-channels are connected sequentially, the sub-channels extend along a first direction and the plurality of sub-channels are arranged along a second direction, the second direction intersecting the first direction; the inlet branch channel and/or the return branch channel are arranged adjacent to the second material storage space.
  • the key parts of the refrigerant heat exchange channel can be protected first, thereby improving the reliability of the refrigerant heat exchange components.
  • a plurality of second material storage spaces are provided between at least two adjacent inlet branch channels; and/or, a plurality of second material storage spaces are provided between the inlet branch channel and the return branch channel.
  • multiple second material storage spaces can be flexibly set in the refrigerant heat exchange component to reduce the risk of weld blockage in the inlet branch channel and return branch channel, thereby improving the welding yield and reliability of the refrigerant heat exchange component.
  • the refrigerant heat exchange channel further includes a main inlet channel and a main return channel.
  • the main inlet channel is connected to multiple inlet branch channels, and the main return channel is connected to multiple return branch channels.
  • the main inlet channel and/or the main return channel are arranged adjacent to the second material storage space.
  • the embodiments of this application provide a second material storage space adjacent to the main inlet channel and/or the main return channel, so as to reduce the risk of weld blockage in the main inlet channel and/or the main return channel, and improve the welding yield and reliability of the refrigerant heat exchange components.
  • the first plate includes a body portion and a composite layer disposed on the surface of the body portion.
  • the composite layer is used as solder to weld with the second plate, and the material-containing space is capable of accommodating the solder.
  • the material storage space can accommodate some of the excess solder, thereby blocking the solder from flowing into the refrigerant heat exchange channel and reducing the risk of solder blockage in the refrigerant heat exchange channel.
  • the enclosure includes a main body and a top cover.
  • the main body has openings at both ends, and the top cover and the refrigerant heat exchange component cover the openings at both ends of the main body.
  • the refrigerant heat exchange component is bonded to the battery cell assembly with thermally conductive adhesive.
  • the refrigerant heat exchange component can directly exchange heat with the battery cell assembly, with high heat exchange efficiency and good heat exchange effect, effectively improving the reliability of the battery device.
  • the refrigerant in the refrigerant heat exchange channel is a phase change working fluid.
  • the refrigerant heat exchange component can be a direct cooling plate.
  • the direct cooling plate has high requirements for welding performance.
  • the refrigerant heat exchange component provided in this application embodiment has a material storage space, which can greatly reduce the risk of welding blockage and improve the manufacturing yield of the refrigerant heat exchange component.
  • An embodiment of the second aspect of this application provides a refrigerant heat exchange component, the refrigerant heat exchange component including at least a first plate and a second plate stacked together, the first plate and the second plate forming a refrigerant heat exchange channel, the first plate having a welding portion, the second plate being welded to the welding portion, the welding portion having a material-containing space having an opening facing the second plate, the material-containing space being disposed adjacent to the refrigerant heat exchange channel to prevent the solder from flowing into the refrigerant heat exchange channel.
  • An embodiment of the third aspect of this application provides an electrical device including a battery device as provided in the first aspect or a refrigerant heat exchange component as provided in the second aspect, wherein the battery device is used to provide electrical energy.
  • Figure 1 is a structural schematic diagram of a vehicle provided in an embodiment of this application.
  • FIG. 2 is a schematic diagram of the structure of a battery device provided in an embodiment of this application.
  • Figure 3 is a three-dimensional exploded view of a battery cell provided in an embodiment of this application.
  • Figure 4 is an exploded perspective view of a refrigerant heat exchange component provided in an embodiment of this application.
  • Figure 5 is a structural schematic diagram of the first plate provided in an embodiment of this application.
  • Figure 6 is a magnified view of part A in Figure 5;
  • Figure 7 is a magnified view of part B in Figure 5;
  • Figure 8 is a cross-sectional schematic diagram of a partial structure of a refrigerant heat exchange component provided in an embodiment of this application;
  • Figure 9 is a structural schematic diagram of the first plate provided in another embodiment of this application.
  • Figure 10 is a structural schematic diagram of the first plate in a refrigerant heat exchange component provided in another embodiment of this application;
  • Figure 11 is a partial enlarged view of part C in Figure 10;
  • the markings in the diagram mean: 1000, Vehicle; 100, Battery Unit; 200, Controller; 300, Motor; 10, Housing; 11, Top Cover; 12. 20. Battery cell assembly; 21. Battery cell; 211. Housing; 212. End cap; 213. Electrode assembly; 214. Electrode terminal; 215. Pressure relief mechanism; 30. Refrigerant heat exchange component; 301. Material storage space; 3011. First material storage space; 3012. Second material storage space; 31. First plate; 31a. Flow channel area; 31b. Peripheral area; 311. Flow channel section; 312. Welding section; 312 1. Connection area; 31211. First area; 31212. Second area; 3122. Material tank; 3123. Through hole; 313. Body; 314. Composite layer; 32. Second plate; 33. Heat exchange joint; 34. Refrigerant heat exchange channel; 341. Branch channel; 3411. Inlet branch channel; 3412. Return branch channel; 3413. Sub-channel; 342. Main inlet channel; 343. Main return channel; 40. Bottom guard plate.
  • the term "and/or” is merely a description of the relationship between related objects, indicating that three relationships can exist.
  • a and/or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.
  • the character "/" in this document generally indicates that the preceding and following related objects have an "or" relationship.
  • multiple refers to two or more (including two), and similarly, “multiple groups” refers to two or more (including two groups).
  • the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.
  • the battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.
  • the battery apparatus mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity.
  • a battery cell assembly may include multiple battery cells, which are connected in series, parallel, or mixed connections via busbars.
  • a battery cell assembly is typically formed by arranging multiple battery cells.
  • a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module.
  • a battery module can be formed by bundling multiple battery cells together with cable ties.
  • the battery device may be a battery pack, which includes a housing and one or more individual battery cells housed within the housing.
  • the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.
  • battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.
  • Fast charging is a mainstream solution for new energy vehicles to quickly replenish their energy.
  • the battery cells generate a lot of heat, which causes the internal temperature of the battery to rise sharply, affecting the battery's performance, lifespan, and reliability.
  • some batteries are equipped with refrigerant heat exchange components for thermal management. These components consist of two opposing plates welded together to form a flow channel for the refrigerant.
  • the refrigerant heat exchange component regulates the internal temperature of the battery through the refrigerant.
  • solder can easily flow into the flow channel, causing blockage. This can lead to malfunction of the refrigerant heat exchange component, affecting the battery's thermal management performance and operational reliability.
  • a battery device including a housing, a battery cell assembly, and a refrigerant heat exchange component.
  • the refrigerant heat exchange component includes a first plate and a second plate stacked together, the first plate and the second plate forming a refrigerant heat exchange channel.
  • the first plate has a welding portion and a material holding space is provided in the welding portion.
  • the material holding space is adjacent to the refrigerant heat exchange channel and has an opening facing the second plate.
  • the second plate is welded to the welding portion.
  • the first plate and the second plate are welded together.
  • the welded portion of the first plate has a material-containing space with its opening facing the second plate.
  • the contact area between the first plate and the second plate is reduced, thereby reducing the welding area.
  • the material-containing space blocks the path of the solder moving toward the refrigerant heat exchange channel, and it can also store excess solder. Therefore, the solution provided in this application reduces the problem of solder flowing into the refrigerant heat exchange channel and causing blockage, thereby reducing the risk of functional abnormalities of the refrigerant heat exchange components and battery thermal management failure caused by blockage of the refrigerant heat exchange channel, and improving the reliability of the battery device.
  • the technical solutions described in the embodiments of this application are applicable to various electrical devices that use individual battery cells, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft.
  • spacecraft include airplanes, rockets, space shuttles, and spacecraft.
  • the following embodiments use a vehicle as an example of an electrical device according to an embodiment of this application.
  • FIG. 1 is a structural schematic diagram of a vehicle 1000 provided in some embodiments of this application.
  • the vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc.
  • a battery device 100 is installed inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000.
  • the battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000.
  • the vehicle 1000 may also include a controller 200 and a motor 300.
  • the controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during startup, navigation, and driving.
  • the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.
  • the battery device 100 includes a housing 10 and a battery cell assembly 20.
  • the housing 10 includes a top cover 11 and a housing body 12, which are fitted together to define a space for accommodating the battery cells 21.
  • the housing body 12 can be a hollow structure with one open end, and the top cover 11 can be a plate-like structure that fits over the open side of the housing body 12, so that the top cover 11 and the housing body 12 together define the space.
  • both the top cover 11 and the housing body 12 can be hollow structures with one open side, with the open side of the top cover 11 fitting over the open side of the housing body 12.
  • the housing 10 formed by the top cover 11 and the housing body 12 can be of various shapes, such as a cylinder or a cuboid.
  • a battery cell assembly 20 is typically formed by arranging multiple battery cells 21.
  • the battery cell 21 is the smallest unit that makes up the battery device 100, and the battery cell 21 includes a housing 211, an end cap 212, an electrode assembly 213, and other functional components.
  • End cap 212 refers to a component that covers the opening of housing 211 to isolate the internal environment of battery cell 21 from the external environment.
  • the shape of end cap 212 can be adapted to the shape of housing 211 to fit it.
  • end cap 212 can be made of a material with certain hardness and strength (such as aluminum alloy), so that end cap 212 is not easily deformed under pressure and impact, giving battery cell 21 higher structural strength and improved reliability.
  • Functional components such as electrode terminals 214 and pressure relief mechanism 215 can be provided on end cap 212. Electrode terminals 214 can be used for electrical connection with electrode assembly 213 for outputting or inputting electrical energy to battery cell 21.
  • pressure relief mechanism 215 is used to release internal pressure when the internal pressure or temperature of battery cell 21 reaches a threshold.
  • the material of end cap 212 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this application embodiment does not impose special limitations on this.
  • an insulating element may also be provided on the inner side of the end cap 212 to reduce the risk of short circuit.
  • the insulating element may be made of plastic, rubber, etc.
  • the housing 211 is a component used to cooperate with the end cap 212 to form the internal environment of the battery cell 21. This internal environment can accommodate the electrode assembly 213, electrolyte, and other components.
  • the housing 211 and the end cap 212 can be independent components.
  • An opening can be provided on the housing 211, and the end cap 212 can be used to close the opening to form the internal environment of the battery cell 21.
  • the end cap 212 and the housing 211 can be integrated.
  • the end cap 212 and the housing 211 can form a common connecting surface before other components are inserted into the housing. When it is necessary to encapsulate the interior of the housing 211, the end cap 212 closes the housing 211.
  • the housing 211 can have various shapes and sizes, such as cuboid, cylindrical, or hexagonal prism. Specifically, the shape of the housing 211 can be determined according to the specific shape and size of the electrode assembly 213.
  • the material of the housing 211 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, or plastic. This application embodiment does not impose any special limitations on this.
  • Electrode assembly 213 is the component in the battery cell 21 where the electrochemical reaction occurs.
  • the housing 211 may contain one or more electrode assemblies 213.
  • the electrode assembly 213 is mainly formed by winding or stacking positive and negative electrode sheets, and typically a separator is provided between the positive and negative electrode sheets.
  • the portions of the positive and negative electrode sheets containing active material constitute the main body of the electrode assembly 213, while the portions of the positive and negative electrode sheets without active material each constitute a tab.
  • the positive and negative tabs may be located together at one end of the main body or at opposite ends of the main body.
  • the positive and negative active materials react with the electrolyte, and the tabs connect to the electrode terminals 214 to form a current loop.
  • a pressure relief mechanism 215 is provided on one side of the battery cell 21.
  • the pressure relief mechanism 215 is an element or component that is actuated to release internal pressure when the internal pressure or temperature of the battery cell 21 reaches a predetermined threshold.
  • an embodiment of the first aspect of this application provides a battery device 100, including a housing 10, a battery cell assembly 20, and a refrigerant heat exchange component 30.
  • the battery cell assembly 20 is disposed inside the housing 10.
  • the refrigerant heat exchange component 30 is configured to exchange heat with the battery cell assembly 20.
  • the refrigerant heat exchange component 30 includes at least a first plate 31 and a second plate 32 stacked together.
  • the first plate 31 and the second plate 32 enclose a refrigerant heat exchange channel 34.
  • the first plate 31 has a welding portion 312.
  • the second plate 32 is welded to the welding portion 312.
  • a material-containing space 301 is provided inside the welding portion 312.
  • the material-containing space 301 has an opening facing the second plate 32.
  • the material-containing space 301 is disposed adjacent to the refrigerant heat exchange channel 34 to prevent solder from flowing into the refrigerant heat exchange channel 34.
  • the housing 10 is used to house the battery cell assembly 20.
  • the housing 10 includes a top cover 11 and a housing body 12, with the top cover 11 and the housing body 12 forming a housing space.
  • the battery cell assembly 20 includes a plurality of battery cells 21.
  • the battery cell assembly 20 includes a plurality of battery cells 21 arranged sequentially along a first direction X, and multiple sets of battery cell assemblies 20 are arranged sequentially along a second direction Y, such that the battery cells 21 are arranged in an array, and the second direction Y intersects the first direction X.
  • the first direction X may be the length direction of the housing 10
  • the second direction Y may be the width direction of the housing 10; in other embodiments, the first direction X and/or the second direction Y may also intersect the length direction of the housing 10 at an angle.
  • the refrigerant heat exchange component 30 is used to contain refrigerant to regulate the temperature of the battery cell assembly 20. During the battery cell assembly 20's circulation, heat is generated, which can be cooled by the refrigerant heat exchange component 30.
  • the refrigerant heat exchange component 30 can also be called a cooling element, cooling system, or cold plate. Of course, in some cases, the refrigerant heat exchange component 30 can also be used to heat the battery cell assembly 20, which will not be elaborated upon here.
  • the refrigerant heat exchange component 30 can be directly connected to the battery cell assembly 20 or indirectly connected to it, as long as it can exchange heat with the battery cell assembly 20.
  • the refrigerant heat exchange component 30 is connected to the bottom of the housing 10.
  • the housing 10 includes a top cover 11 and a housing body 12, with the refrigerant heat exchange component 30 connected to the side of the housing body 12 opposite to the top cover 11.
  • the refrigerant heat exchange component 30 can be disposed inside the housing 10, outside the housing 10, or as a lower cover that closes the housing body 12, in which case the housing body 12 is open at both ends, and the top cover 11 and the refrigerant heat exchange component 30 are respectively disposed on both sides of the housing body 12.
  • the refrigerant heat exchange component 30 includes at least a first plate 31 and a second plate 32 stacked together.
  • the first plate 31 and the second plate 32 may have the same or similar dimensions.
  • the first plate 31 and the second plate 32 may be made of metal, composite material or other materials.
  • the first plate 31 and the second plate 32 together form a refrigerant heat exchange channel 34.
  • the first plate 31 is provided with an unclosed channel portion 311.
  • the channel portion 311 can be closed to form the refrigerant heat exchange channel 34.
  • the second plate 32 may also be provided with an unclosed channel portion 311, or the first plate 31 and the second plate 32 may be provided with opposing channel portions 311.
  • the refrigerant heat exchange channel 34 supplies refrigerant flow; for example, the refrigerant may include a fluorinated cooling medium.
  • the refrigerant heat exchange channel 34 can be connected to other heat exchange equipment such as compressors, water pumps, fans, and condensers via pipes, allowing the refrigerant to circulate to other heat exchange equipment for cooling and carrying away the heat inside the battery.
  • the first plate 31 has a welding portion 312, which refers to the part of the first plate 31 used for welding with the second plate 32.
  • the welding portion 312 By welding the welding portion 312 to the second plate 32, the refrigerant heat exchange channel 34 can be sealed. It is understood that the welding portion 312 includes at least the outer periphery of the first plate 31, and depending on the shape of the refrigerant heat exchange channel 34, the welding portion 312 may also include the portion between different flow sections of the refrigerant heat exchange channel 34.
  • the welding section 312 is provided with a material-containing space 301, the opening of which faces the second plate 32.
  • the material-containing space 301 can be formed through structures such as holes or grooves.
  • solder is a general term for metallic alloy materials used to add to welds, weld overlays, and brazing seams.
  • the solder is the welding material between the first plate 31 and the second plate 32, which are fixedly connected by the solder.
  • the solder includes materials on the surfaces of the first plate 31 and/or the second plate 32, such as a composite layer on the surfaces of the first plate 31 and/or the second plate 32.
  • the battery device 100 provided in this embodiment includes a housing 10, a battery cell assembly 20, and a refrigerant heat exchange component 30.
  • the refrigerant heat exchange component 30 has a refrigerant heat exchange channel 34 formed within it to perform thermal management of the battery cell assembly 20, thereby improving the operational reliability of the battery device 100.
  • the refrigerant heat exchange component 30 includes a first plate 31 and a second plate 32.
  • a material-containing space 301 is provided within the welded portion 312 of the first plate 31, and the opening of the material-containing space 301 faces the second plate 32. By providing the material-containing space 301, the contact area between the first plate 31 and the second plate 32 is reduced. The welding area is reduced accordingly.
  • the material storage space 301 blocks the path of the solder moving toward the refrigerant heat exchange channel 34.
  • the material storage space 301 can also store excess solder. Therefore, the solution provided in this application embodiment reduces the problem of solder flowing into the refrigerant heat exchange channel 34 and causing blockage. This reduces the risk of functional abnormality of the refrigerant heat exchange component 30 and thermal management failure of the battery device 100 caused by blockage of the refrigerant heat exchange channel 34, improves the reliability of the battery device 100, increases the welding yield of the refrigerant heat exchange component 30, and reduces the cost of the refrigerant heat exchange component 30.
  • the welding part 312 includes a plurality of spaced connection regions 3211, and at least one connection region 3211 is provided with a material-containing space 301; on one side of the refrigerant heat exchange channel 34, the material-containing space 301 divides the connection region 3211 into a first region 32111 and a second region 32112 distributed along a preset direction, the first region 32111 being located between the refrigerant heat exchange channel 34 and the material-containing space 301; the material-containing space 301 is used to prevent solder from flowing from the second region 32112 to the first region 32111.
  • the width of the first region 32111 is less than or equal to the width of the second region 32112.
  • the welding section 312 includes a plurality of spaced connection areas 3211, each connection area 3211 being welded to the second plate; the refrigerant heat exchange channel 34 extends between adjacent connection areas 3211, and one or more connection areas 3211 are provided with a material holding space 301.
  • the "preset direction” is the direction in which the material storage space 301 divides the connecting area 3211.
  • the material storage space 301 divides the connecting area 3211 into a first area 32111 and a second area 32112 distributed along the length direction of the refrigerant heat exchange component 30.
  • the first area 32111 is located between the refrigerant heat exchange channel 34 and the material storage space 301.
  • the width of the first area 32111 is less than or equal to the width of the second area 32112, that is, the material storage space 301 is arranged adjacent to the refrigerant heat exchange channel 34. If the width of the first area 3211 is less than the width of the second area 32112, then the material storage space 301 is closer to the refrigerant heat exchange channel 34 than the edge of the connecting area 3211.
  • the material storage space 301 divides the connecting area 3211 into a first area 32111 and a second area 32112 distributed along the width direction of the refrigerant heat exchange component 30.
  • the first area 32111 is located between the refrigerant heat exchange channel 34 and the material storage space 301
  • the second area 32112 is located between the material storage space 301 and the edge of the refrigerant heat exchange component.
  • the width of the first area 32111 is less than or equal to the width of the second area 32112, that is, the material storage space 301 and the refrigerant heat exchange channel 34 are arranged adjacent to each other. If the width of the first area 3211 is less than the width of the second area 32112, then the material storage space 301 is closer to the refrigerant heat exchange channel 34 than the edge of the connecting area 3211.
  • the refrigerant heat exchange channel 34 can be arranged in various ways, and the refrigerant heat exchange channel 34 forms multiple channel branches.
  • the connection area 3211 between adjacent channel branches is relatively wide, increasing the risk of weld blockage. Therefore, a material-containing space 301 can also be provided in the connection area 3211 between channel branches.
  • the material-containing space 301 divides the connection area 3211 between channel branches into a first region 32111 and a second region 32112.
  • the width of the first region 32111 is less than or equal to the width of the second region 32112.
  • the material storage space 301 is arranged adjacent to the refrigerant heat exchange channel 34.
  • the material storage space 301 can block the solder in the second region 32112 from flowing toward the first region 32111, so as to protect the refrigerant heat exchange channel 34.
  • the width of the first region 32111 is less than or equal to the width of the second region 32112, and the distance between the material storage space 301 and the adjacent portion of the refrigerant heat exchange channel 34 is less than or equal to the distance from the material storage space 301 to the side of the connecting region 3211 away from the portion of the refrigerant heat exchange channel 34.
  • the first plate 31 has a recessed flow channel 311 on the side facing the second plate 32.
  • the flow channel 311 and the second plate 32 together form a refrigerant heat exchange flow channel 34.
  • the flow channel 311 is recessed in the first plate 31. After the first plate 31 and the second plate 32 are welded together, the flow channel 311 and the second plate 32 together form the refrigerant heat exchange flow channel 34.
  • the material holding space 301 is also provided in the first plate 31.
  • the material holding space 301 and the flow channel 311 can be fabricated together on the first plate 31, which improves manufacturing efficiency.
  • the material holding space 301 and the flow channel 311 can be fabricated on the first plate 31 by stamping.
  • the first plate 31 is disposed on the side of the second plate 32 away from the battery cell assembly 20.
  • the second plate 32 can be a flat plate to facilitate contact and heat exchange with the battery cell assembly 20.
  • the material storage space 301 and the flow channel 311 are both fabricated on the first plate 31, and the second plate 32 can be a flat plate structure.
  • the fabrication method of the refrigerant heat exchange component 30 is simple and convenient, and the fabrication efficiency is high.
  • the flow channel 311 and the material holding space 301 may be provided in either the first plate 31 or the second plate 32, or simultaneously in both the first plate 31 and the second plate 32.
  • the embodiment of this application sets the preset distance between the material storage space 301 and the refrigerant heat exchange channel 34 to be less than or equal to 35mm, so as to achieve a good anti-blocking effect.
  • the preset distance is 3mm, 5mm, 15mm, 20mm, 30mm, 35mm, etc.; when there are multiple material storage spaces 301, the distance between the material storage space 301 and the refrigerant heat exchange channel 34 does not have to be equal, as long as the above range is met.
  • the preset distance between the refrigerant heat exchange channel 34 and the material storage space 301 is less than or equal to 35mm, which can effectively reduce the risk of blockage of the refrigerant heat exchange channel 34.
  • the preset distance ranges from 5mm to 20mm.
  • the preset distance is 5mm, 10mm, 15mm, 20mm, etc.
  • the preset distance between the material storage space 301 and the refrigerant heat exchange channel 34 can be determined based on factors such as the width of the refrigerant heat exchange channel 34 and the welding area on one side of the refrigerant heat exchange channel 34, in order to reduce the risk of weld blockage.
  • the welding part 312 is provided with a material receiving groove 3122, and the interior of the material receiving groove 3122 forms a material receiving space 301.
  • the material container 3122 is recessed on the side of the first plate 31 facing the second plate 32.
  • the material container 3122 can be strip-shaped, arc-shaped, or similar. It can also be configured to at least partially mimic the shape of the refrigerant heat exchange channel 34, thus serving as a dummy channel.
  • the interior of the material container 3122 forms a material-containing space 301, and its opening faces the second plate 32 to accommodate excess solder between the first and second plates 31 and 32.
  • the material container 3122 can be manufactured by stamping or other methods, not only accommodating solder but also enhancing the structural strength of the refrigerant heat exchange component 30.
  • the material tank 3122 is strip-shaped and extends along the adjacent portion of the refrigerant heat exchange channel 34.
  • the material receiving tank 3122 is strip-shaped, meaning its length is greater than its width.
  • the material receiving tank 3122 extends along the refrigerant heat exchange channel 34, and thus the material receiving space 301 formed by the material receiving tank 3122 also extends along the refrigerant heat exchange channel 34.
  • there are multiple material receiving tanks 3122 all of which are strip-shaped.
  • each material receiving tank 3122 extends along the refrigerant heat exchange channel 34, and multiple material receiving tanks 3122 are spaced apart along the refrigerant heat exchange channel 34, reducing the risk of weld blockage in the refrigerant heat exchange channel 34.
  • the material tank 3122 can reduce the welding area of the welding part 312.
  • the material tank 3122 extends along the refrigerant heat exchange channel 34, which at least reduces the risk of weld blockage in the refrigerant heat exchange channel 34 within its length range, and the anti-blockage effect is better.
  • the width of the material container 3122 is 5mm to 20mm, and/or the depth of the material container 3122 is 2mm to 3mm.
  • the material container 3122 also known as a dummy flow channel, does not require refrigerant flow.
  • the width of the material container 3122 is 5mm to 20mm; for example, it can be 5mm, 8mm, 10mm, 15mm, or 20mm.
  • the width of the material container 3122 can be equal to or unequal to the width of the refrigerant heat exchange channel 34; no restriction is placed here.
  • a width greater than or equal to 5mm allows the material container 3122 to accommodate more solder and effectively separate the refrigerant heat exchange channel 34 from areas with larger welding widths; a width less than or equal to 20mm accommodates the overall dimensions of the refrigerant heat exchange component 30.
  • the depth of the material container 3122 is 2mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 3mm, etc. By setting the depth of the material container 3122 to be greater than or equal to 2mm, the material container 3122 can accommodate more solder; the depth of the material container 3122 to be less than or equal to 3mm can adapt to the overall size of the refrigerant heat exchange component 30, avoiding the refrigerant heat exchange component 30 being too thick and occupying too much space.
  • the width of the material tank 3122 may also be in other ranges to accommodate the size of the refrigerant heat exchange component 30 and the requirements for preventing weld blockage.
  • the size of the material tank 3122 can meet the requirements of anti-blocking welding and match the size of the refrigerant heat exchange component 30, which is easy to implement.
  • the width of the refrigerant heat exchange channel 34 is 5 mm to 20 mm, and/or the depth of the refrigerant heat exchange channel 34 is 2 mm to 3 mm.
  • the width of the refrigerant heat exchange channel 34 refers to the width of the refrigerant flow path within the refrigerant heat exchange channel 34.
  • the width of the refrigerant heat exchange channel 34 affects its flow cross-sectional area.
  • the width W1 of the refrigerant heat exchange channel 34 can be 5mm, 8mm, 10mm, 15mm, 20mm, etc.
  • a width greater than or equal to 5mm allows for a sufficient flow of refrigerant within the refrigerant heat exchange channel 34; a width less than or equal to 20mm prevents excessive refrigerant pressure from affecting the structural reliability of the refrigerant heat exchange component 30.
  • the depth of the refrigerant heat exchange channel 34 can be 2mm, 2.5mm, 2.7mm, 3mm, etc. By setting the depth of the refrigerant heat exchange channel 34 to be greater than or equal to 2mm, the refrigerant heat exchange channel 34 can have a sufficient flow of refrigerant; if the depth of the refrigerant heat exchange channel 34 is less than or equal to 3mm, the working pressure of the refrigerant will not be too high and affect the structural reliability of the refrigerant heat exchange component 30.
  • the bottom of the refrigerant heat exchange flow channel 34 and the material container 3122 will protrude relative to the first plate 31.
  • the depth of the refrigerant heat exchange flow channel 34 and the material container 3122 can be less than or equal to 3mm, the protrusion height of the refrigerant heat exchange flow channel 34 and the material container 3122 can be controlled, the overall size of the refrigerant heat exchange component 30 can be reduced, and the installation requirements can be met.
  • the refrigerant heat exchange channel 34 can have a sufficient flow of refrigerant without excessive operating pressure.
  • the width of the material container 3122 can be equal to or similar to the width of the refrigerant heat exchange channel 34, and the depth of the material container 3122 can be equal to or similar to the depth of the refrigerant heat exchange channel 34, thus the material container 3122 is easy to manufacture and occupies less space.
  • the welding part 312 is provided with a through hole 3123, and the interior of the through hole 3123 forms a material-containing space 301.
  • the through hole 3123 is a hole that penetrates the first plate 31 along the thickness direction of the first plate 31.
  • the through hole 3123 is a round hole; as shown in Figures 10 and 11, the through hole 3123 is an elongated hole, for example, the through hole 3123 can be a slit-shaped elongated hole.
  • the number of through holes 3123 can be one or more. For example, there are multiple through holes 3123, which are distributed at intervals on the outside of the refrigerant heat exchange channel 34 and between the channel portions 311 that are far apart in the refrigerant heat exchange channel 34.
  • the through hole 3123 can separate the refrigerant heat exchange channel 34 from the welding area with a larger welding width. Furthermore, the through hole 3123 can accommodate and/or discharge excess solder, further reducing the risk of weld blockage. In addition, the through hole 3123 can also discharge gas between the first plate 31 and the second plate 32 during the welding process, achieving the effect of preventing gas entrapment.
  • the through hole 3123 may be filled or partially filled with solder, which does not affect the anti-blocking effect of the through hole 3123 during the soldering process.
  • the through hole 3123 is circular, and the diameter of the through hole 3123 is 3mm to 15mm.
  • the through hole 3123 is a circular through hole 3123.
  • the diameter of the through hole 3123 can be equal or unequal.
  • a through hole 3123 with a larger diameter is provided in the area where the first plate 31 and the second plate 32 are connected.
  • the diameter of the through hole 3123 can be 3mm, 5mm, 6mm, 8mm, 10mm, 15mm, etc.
  • a diameter greater than or equal to 3mm allows for the separation of the refrigerant heat exchange channel 34 from the wider welding area.
  • a diameter less than or equal to 15mm allows the through hole to accommodate the dimensions of the refrigerant heat exchange component 30 while minimizing its impact on the structural strength of the refrigerant heat exchange component 30.
  • the through hole 3123 may also be square, elliptical, or other shapes.
  • the welding part 312 is provided with at least one of a material receiving groove 3122 and a through hole 3123, and a material receiving space 301 is formed in the material receiving groove 3122 and/or the through hole 3123.
  • material-containing grooves 3122 or through holes 3123 can be set up in a certain area to prevent the flow of solder.
  • through holes 3123 can be set up in a certain area to prevent the flow of solder.
  • material-containing grooves 3122 should be set up first, and through holes 3123 should be set up as an auxiliary when space is insufficient.
  • strip-shaped through holes 3123 (or slots) can be set up to block the flow of solder.
  • the refrigerant heat exchange component 30 can be equipped with a material container 3122 and/or a through hole 3123 according to its installation requirements, size and other conditions, and the material container 3122 and the through hole 3123 can be used in combination to achieve the effect of preventing weld blockage.
  • the first plate 31 has a flow channel region 31a and a peripheral region 31b located outside the flow channel region 31a.
  • the refrigerant heat exchange flow channel 34 is located in the flow channel region 31a, and the welding part 312 is located in both the flow channel region 31a and the peripheral region 31b.
  • the material holding space 301 includes a first material holding space 3011, which is located in the peripheral region 31b.
  • the flow channel region 31a is the area where the refrigerant heat exchange flow channel 34 is located, and it is also a complete region.
  • the flow channel region 31a is indicated by a dashed line in Figure 5.
  • the flow channel inlet and flow channel outlet can be inside or outside the flow channel region 31a, and this application does not impose any restrictions on this.
  • Figure 5 also indicates the edge of the welded part 312 by a dashed line. The edge of the welded part 312 can be close to the edge of the first plate 31 or coincide with the edge of the first plate 31, and this application does not impose any restrictions on this.
  • the outer region 31b is the region located outside the flow channel region 31a.
  • the welding part 312 is located in both the flow channel region 31a and the outer region 31b.
  • the welding part 312 refers to the part on the first plate 31 used for welding to the second plate 32.
  • the part of the welding part 312 located in the flow channel region 31a can separate the different flow channel parts 311 of the refrigerant heat exchange flow channel 34.
  • the part of the welding part 312 located in the outer region 31b can seal and connect the first plate 31 and the second plate 32.
  • the material storage space 301 includes a first material storage space 3011 located in the peripheral region 31b.
  • the number of first material storage spaces 3011 can be one or more.
  • multiple first material storage spaces 3011 extend along the edge of the flow channel region 31a.
  • the material storage space 301 includes a first material storage space 3011 located in the peripheral region 31b. Since the welding width of the peripheral region 31b is relatively wide, the first material storage space 3011 located in the peripheral region 31b can separate the wider part of the welding width of the peripheral region 31b from the refrigerant heat exchange channel 34, thereby reducing the risk of weld blockage in the refrigerant heat exchange channel 34.
  • the first material storage space 3011 is disposed on one side of the first plate 31, and the distance from the first material storage space 3011 to the refrigerant heat exchange channel 34 is less than the distance from the first material storage space 3011 to the edge of the first plate 31; and/or, along the width direction of the first plate 31, the first material storage space 3011 is disposed on one side of the first plate 31, and the distance from the first material storage space 3011 to the refrigerant heat exchange channel 34 is less than the distance from the first material storage space 3011 to the edge of the first plate 31.
  • the length direction of the first plate 31 is the X direction
  • the width direction of the first plate 31 is the Y direction.
  • the first material storage space 3011 is located on one side of the first plate 31.
  • the distance between the first material storage space 3011 and the refrigerant heat exchange channel 34 is less than the distance from the first material storage space 3011 to the edge of the first plate 31, that is, the first material storage space 3011 is closer to the refrigerant heat exchange channel 34.
  • the first material storage space 3011 is located on one side of the first plate 31.
  • the distance from the first material storage space 3011 to the refrigerant heat exchange channel 34 is less than the distance from the first material storage space 3011 to the edge of the first plate 31, that is, the first material storage space 3011 is closer to the refrigerant heat exchange channel 34.
  • the distance between the first material storage space 3011 and the refrigerant heat exchange channel 34 is relatively small, which can separate the refrigerant heat exchange channel 34 from the area with a large welding width around the heat exchange plate, and the anti-blocking welding effect is better.
  • the first material storage space 3011 extends along the edge of the flow channel region 31a; and/or, there are multiple first material storage spaces 3011 arranged along the edge of the flow channel region 31a.
  • the first material-containing space 3011 can be circular, square, elliptical, or rectangular.
  • the first material-containing space 3011 is formed by a strip-shaped material-containing groove 3122 or a strip-shaped through hole 3123.
  • the first material-containing space 3011 is strip-shaped and extends along the edge of the flow channel region 31a.
  • multiple first material-containing spaces 3011 are arranged along the edge of the flow channel region 31a.
  • the first material space 3011 can be set along the extension direction of the refrigerant heat exchange channel 34 to adapt to the length of the refrigerant heat exchange channel 34, thereby providing a more comprehensive anti-blocking welding effect for the refrigerant heat exchange channel 34.
  • the material storage space 301 further includes one or more second material storage spaces 3012, which are located within the flow channel region 31a.
  • the refrigerant heat exchange channel 34 can be arranged in various ways, and the refrigerant heat exchange channel 34 forms multiple channel branches. In some embodiments, the distance between adjacent channel branches is relatively large, increasing the risk of solder blockage. To address this, embodiments of this application provide one or more second material-containing spaces 3012 within the channel region 31a, which can block excess solder from flowing into the interior of the refrigerant heat exchange channel 34, thus achieving the same effect as preventing solder blockage.
  • the refrigerant heat exchange channel 34 includes multiple parallel branch channels 341.
  • Each branch channel 341 includes an inlet branch channel 3411, a return branch channel 3412, and multiple sub-channels 3413 connected between the inlet branch channel 3411 and the return branch channel 3412.
  • the multiple sub-channels 3413 are connected sequentially, and the sub-channels 3413 extend along a first direction and are arranged along a second direction, which intersects with the first direction.
  • the inlet branch channel 3411 and/or the return branch channel 3412 are arranged adjacent to the second material storage space 3012.
  • the refrigerant heat exchange component 30 has a flow channel inlet and a flow channel outlet, and each branch channel 341 is connected to both the flow channel inlet and the flow channel outlet.
  • the refrigerant heat exchange component 30 further includes a heat exchange connector 33, which is connected to at least one of the first plate 31 and the second plate 32.
  • the heat exchange connector 33 communicates with the flow channel inlet and the flow channel outlet and is used to connect the refrigerant heat exchange component 30 to other heat exchange devices to allow refrigerant to flow in and out.
  • Each branch channel 341 includes an inlet branch channel 3411, a return branch channel 3412, and multiple sub-channels 3413.
  • Refrigerant entering the refrigerant heat exchange component 30 from the channel inlet flows sequentially through the multiple sub-channels 3413 from the inlet branch channel 3411, and then enters the return branch channel 3412 before flowing to the channel outlet.
  • the multiple sub-channels 3413 are arranged side-by-side, resulting in better heat exchange for the battery cell assembly 20.
  • the sub-channels 3413 extend along a first direction, and the multiple sub-channels 3413 are arranged along a second direction.
  • the first direction can be the direction in which the multiple battery cells 21 in the battery cell assembly 20 are arranged, which is the X direction in the figure.
  • the second direction can be perpendicular to the first direction, which is the Y direction in the figure.
  • the sub-channels 3413 may also include multiple parallel sub-channels 3413 to improve heat exchange reliability and increase the heat exchange area. Because the sub-channels 3413 are arranged relatively densely, the risk of blockage in the sub-channels 3413 is relatively small.
  • the inlet branch channel 3411 and the return branch channel 3412 are spaced apart in the flow channel region 31a. There may be areas with large welding widths between the branch channels. Therefore, this application provides a second material holding space 3012 adjacent to the inlet branch channel 3411 and/or the return branch channel 3412 to reduce the risk of weld blockage in the inlet branch channel 3411 and/or the return branch channel 3412. In addition, if weld blockage occurs in the inlet branch channel 3411 and the return branch channel 3412, it will affect the entire branch channel 341 and reduce the reliability of thermal management. By providing a second material holding space 3012 adjacent to the inlet branch channel 3411 and the return branch channel 3412, the key parts of the refrigerant heat exchange flow channel 34 can be protected first, thereby improving the reliability of the refrigerant heat exchange component 30.
  • a plurality of second material storage spaces 3012 are provided between at least two adjacent inlet branch channels 3411; and/or, a plurality of second material storage spaces 3012 are provided between the inlet branch channel 3411 and the return branch channel 3412.
  • each second material storage space 3012 is set adjacent to at least one inlet branch channel 3411.
  • the return branch channel 3412 is located at the edge of the flow channel region 31a.
  • at least one return branch channel 3412 may be staggered from the battery cell assembly 20.
  • each second material holding space 3012 is arranged adjacent to the inlet branch channel 3411 and/or the return branch channel 3412.
  • the refrigerant heat exchange component 30 can be flexibly equipped with multiple second material storage spaces 3012 to reduce the risk of weld blockage between the inlet branch channel 3411 and the return branch channel 3412, thereby improving the welding yield and reliability of the refrigerant heat exchange component 30.
  • the refrigerant heat exchange channel 34 further includes a main inlet channel 342 and a main return channel 343.
  • the main inlet channel 342 is connected to multiple inlet branch channels 3411, and the main return channel 343 is connected to multiple return branch channels 3412.
  • the main inlet channel 342 and/or the main return channel 343 are arranged adjacent to the second material storage space 3012.
  • the main inlet channel 342 can divert refrigerant to multiple inlet branch channels 3411, and the main return channel 343 can collect refrigerant flowing out of multiple return branch channels 3412. Therefore, the main inlet channel 342 and the main return channel 343 are critical. If blockage occurs, the entire refrigerant heat exchange component 30 will fail.
  • this embodiment provides a second material storage space 3012 adjacent to the main inlet channel 342 and/or the main return channel 343 to reduce the risk of blockage in the main inlet channel 342 and/or the main return channel 343, thereby improving the welding yield and reliability of the refrigerant heat exchange component 30.
  • Figure 8 is a cross-sectional schematic diagram of a partial structure of the refrigerant heat exchange component 30. Specifically, it is a cross-sectional schematic diagram of the refrigerant heat exchange component 30 cut along the refrigerant heat exchange channel 34 and the material storage space 301.
  • the first plate 31 includes a body portion 313 and a composite layer 314 disposed on the surface of the body portion 313. The composite layer 314 is used as solder to be welded to the second plate 32, and the material storage space 301 can accommodate the solder.
  • the main body 313 can be made of metal, and the melting point of the composite layer 314 is lower than that of the main body 313.
  • the composite layer 314 can be an aluminum layer.
  • the first plate 31 and the second plate 32 can be welded together by brazing. During welding, a brazing layer is first applied to the surface of the first plate 31, and then the first plate 31 and the second plate 32 are stacked and welded together.
  • the composite layer 314 serves as the solder, which can fix the first plate 31 and the second plate 32 together.
  • the material storage space 301 can accommodate some of the excess solder to block the solder from flowing into the refrigerant heat exchange channel 34, thereby reducing the risk of solder blockage in the refrigerant heat exchange channel 34.
  • the surface of the second plate 32 may also be provided with a composite layer 314, and the composite layer 314 on the second plate 32 may also serve as solder, and the material-containing space 301 may also accommodate excess solder.
  • first plate 31 and the second plate 32 may also be welded with other solders, and the accommodating space can also accommodate the solder.
  • the housing 10 includes a housing body 12 and a top cover 11.
  • the housing body 12 has openings at both ends.
  • the top cover 11 and the refrigerant heat exchange component 30 cover the openings at both ends of the housing body 12.
  • the refrigerant heat exchange component 30 is bonded to the battery cell assembly 20 by thermally conductive adhesive.
  • the refrigerant heat exchange component 30 is located at the bottom of the housing 10 and multiple battery cell assemblies 20, and the refrigerant heat exchange component 30 can be used as the bottom plate of the housing 10, which simplifies the structure of the battery device 100 and helps to save vehicle space.
  • the refrigerant heat exchange component 30 is bonded to the battery cell assembly 20 with thermally conductive adhesive.
  • the refrigerant heat exchange component 30 can directly exchange heat with the battery cell assembly 20, resulting in high heat exchange efficiency and good heat exchange effect, which effectively improves the reliability of the battery device 100.
  • the battery device 100 also includes a bottom protective plate 40, which is connected to the side of the refrigerant heat exchange component 30 away from the main body 12.
  • the bottom protective plate can protect the refrigerant heat exchange component 30 and reduce the impact force of the electrical device on the refrigerant heat exchange component 30 during use, so that the refrigerant heat exchange component 30 is less likely to be deformed by collision.
  • the refrigerant heat exchange component 30 may also be located inside or outside the housing body 12, as long as it can exchange heat with the battery cell assembly 20.
  • the refrigerant in the refrigerant heat exchange channel is a phase change working fluid.
  • the refrigerant can be a phase change working fluid, and during its flow, it can exist in a gas-liquid two-phase state.
  • Types of refrigerants include R134A (tetrafluoroethane), R1234YF (tetrafluoropropylene), and R1233ZD (monochlorotrifluoropropylene), among others.
  • the refrigerant heat exchange component 30 uses refrigerant heat exchange.
  • the refrigerant heat exchange component 30 can be a direct cooling plate.
  • the direct cooling plate has the advantage of high heat exchange efficiency.
  • the direct cooling plate has high requirements for structural strength and welding performance.
  • the refrigerant heat exchange component 30 provided in this application embodiment has a material storage space 301, which can greatly reduce the risk of welding blockage and improve the manufacturing yield of the refrigerant heat exchange component 30.
  • the battery device 100 includes a housing 10, a battery cell assembly 20, and a refrigerant heat exchange component 30.
  • the battery cell assembly 20 is disposed within the housing 10, and the refrigerant heat exchange component 30 is connected to the housing 10.
  • the refrigerant heat exchange component 30 includes a first plate 31 and a second plate 32 stacked together, forming a refrigerant heat exchange channel 34.
  • the first plate 31 has a welding portion 312, and a material-containing space 301 is provided within the welding portion 312.
  • the material-containing space 301 is adjacent to the refrigerant heat exchange channel 34, and the opening of the material-containing space 301 faces the second plate 32.
  • the second plate 32 is welded to the welding portion 312.
  • the welding portion 312 has at least one of a material-containing groove 3122 and a through hole 3123, and the material-containing space 301 is formed within the material-containing groove 3122 and/or the through hole 3123.
  • the first plate 31 has a flow channel region 31a and a peripheral region 31b located outside the flow channel region 31a.
  • the material holding space 301 includes a first material holding space 3011 located in the peripheral region 31b and/or a second material holding space 3012 located in the flow channel region 31a.
  • the battery device 100 provided in this application embodiment reduces the risk of weld blockage in the refrigerant heat exchange component 30, improves the welding yield of the refrigerant heat exchange component 30, reduces the manufacturing cost of the refrigerant heat exchange component 30, and improves the reliability of thermal management and the reliability of the battery device 100.
  • An embodiment of the second aspect of this application provides a refrigerant heat exchange component 30, which includes at least a first plate 31 and a second plate 32 stacked together.
  • the first plate 31 and the second plate 32 enclose a refrigerant heat exchange channel 34.
  • the first plate 31 has a welding portion 312, and the second plate 32 is welded to the welding portion 312.
  • the welding portion 312 is provided with a material holding space 301, which has an opening facing the second plate 32.
  • the material holding space 301 is disposed adjacent to the refrigerant heat exchange channel 34 to prevent solder from flowing into the refrigerant heat exchange channel 34.
  • the refrigerant heat exchange component 30 provided in this application embodiment may be the refrigerant heat exchange component in any embodiment of the first aspect.
  • the refrigerant heat exchange component 30 provided in this application embodiment includes a first plate 31 and a second plate 32.
  • a material-containing space 301 By setting a material-containing space 301, the contact area between the first plate 31 and the second plate 32 is reduced, and the welding area is correspondingly reduced.
  • the material-containing space 301 blocks the path of the solder moving toward the refrigerant heat exchange channel 34.
  • the material-containing space 301 can also store excess solder.
  • the solution provided in this application embodiment reduces the problem of solder flowing into the refrigerant heat exchange channel 34 and causing blockage, thereby reducing the risk of functional abnormality of the refrigerant heat exchange component 30 caused by blockage of the refrigerant heat exchange channel 34, improving the welding yield of the refrigerant heat exchange component 30, and reducing the cost of the refrigerant heat exchange component 30.
  • An embodiment of the third aspect of this application provides an electrical device, including a battery device 100 as provided in the first aspect or a refrigerant heat exchange component 30 as provided in the second aspect, wherein the battery device 100 is used to provide electrical energy.
  • the power supply device can be any of the aforementioned devices or systems that utilize battery device 100.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请适用于电池技术领域，提出一种冷媒换热部件、电池装置及用电装置，电池装置(100)包括箱体；电池单体组件(20)，设于箱体(10)内；冷媒换热部件(30)，冷媒换热部件(30)至少包括层叠设置的第一板体(31)和第二板体(32)，第一板体(31)和第二板体(32)合围成冷媒换热流道(34)，第一板体(31)具有焊接部(312)且焊接部(312)内设有容料空间(301)，容料空间(301)与冷媒换热流道(34)相邻设置，容料空间(301)具有朝向第二板体(32)的开口，第二板体(32)焊接连接于焊接部(312)。本申请实施例提供的电池装置及用电装置具有较高的可靠性。

Description

冷媒换热部件、电池装置及用电装置
本申请要求于2024年04月28日提交国家知识产权局、申请号为202420907842.4、发明名称为“换热装置、电池以及用电装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电池技术领域，特别涉及一种冷媒换热部件、电池装置及用电装置。
背景技术
近些年，新能源汽车有了飞跃式的发展，在电动汽车领域，电池作为电动汽车的动力源，起着不可替代的重要作用。其中，电池作为新能源汽车核心零部件在可靠性方面有着较高的要求。
发明内容
有鉴于此，本申请实施例提供了一种冷媒换热部件、电池装置及用电装置，具有较高的可靠性。
本申请第一方面的实施例提出了一种电池装置，包括：箱体；电池单体组件，设于箱体内；冷媒换热部件，冷媒换热部件配置为与电池单体组件进行热交换，冷媒换热部件至少包括层叠设置的第一板体和第二板体，第一板体和第二板体合围成冷媒换热流道，第一板体具有焊接部，第二板体焊接连接于焊接部，焊接部内设有容料空间，容料空间具有朝向第二板体的开口，容料空间与冷媒换热流道相邻设置以阻挡焊料朝向冷媒换热流道内流动。
本申请实施例提供的电池装置包括箱体、电池单体组件和冷媒换热部件，冷媒换热部件内形成有冷媒换热流道，以对电池单体组件进行热管理，提高了电池运行的可靠性；冷媒换热部件至少包括第一板体和第二板体，第一板体的焊接部内设有容料空间且容料空间的开口朝向第二板体，通过设置容料空间，减小了第一板体和第二板体的接触面积，相应的减小了焊接面积，同时，容料空间阻断了焊料朝向冷媒换热流道移动的路径，并且容料空间还可以储存多余的焊料，因此，本申请实施例提供的方案降低了焊料流进冷媒换热流道内造成堵塞的问题，进而降低了因冷媒换热流道堵塞而引起冷媒换热部件的功能异常和电池热管理失效的风险，提升了电池装置的可靠性，提高了冷媒换热部件的焊接良率，降低了冷媒换热部件的成本。
在一些实施例中，焊接部包括多个间隔设置的连接区域，至少一个连接区域内设有容料空间；在冷媒换热流道的一侧，容料空间将连接区域分隔为沿预设方向分布的第一区域和第二区域，第一区域位于冷媒换热流道与容料空间之间，所述容料空间用于阻挡所述焊料从所述第二区域流向所述第一区域。
通过采用上述技术方案，容料空间能够阻挡第二区域的焊料朝向第一区域流动，以保护冷媒换热流道。
在一些实施例中，沿预设方向，第一区域的宽度小于或等于第二区域的宽度。
通过采用上述技术方案，容料空间和与其相邻的部分冷媒换热流道之间的距离小于或等于该容料空间至连接区域远离该部分冷媒换热流道一侧之间的距离，容料空间与冷媒换热流道之间的距离较近，防堵塞的效果较好。
在一些实施例中，第一板体朝向第二板体的一面凹设有流道部，流道部与第二板体合围成冷媒换热流道。
通过采用上述技术方案，容料空间和流道部均制作于第一板体上，第二板体可为平板结构，冷媒换热部件的制作方式简单方便，制作效率较高。
在一些实施例中，容料空间和与其相邻设置的部分冷媒换热流道之间具有预设距离，预设距离小于或等于35mm。
本申请实施例设置冷媒换热流道与容料空间之间的预设距离小于或等于35mm，能够有效降低冷媒换热流道堵塞的风险。
在一些实施例中，预设距离的范围为5mm～20mm。
通过设置预设距离大于或等于5mm，降低容气空间与冷媒换热流道直接连通的风险，降低了冷媒换热部件的制造难度；通过设置预设距离小于或等于20mm，能够更好地降低堵焊风险。
在一些实施例中，焊接部内设有容料槽，容料槽的内部形成容料空间。
通过在第一板体的焊接部内设置容料槽，不仅能够利用容料槽隔开冷媒换热流道和宽度较大的焊接区域，降低流道堵焊的风险，还能够利用容料槽提升第一板体的结构强度，降低了第一板体受外力作用后发生损坏的风险。
在一些实施例中，容料槽呈条形，容料槽沿着与其相邻的部分冷媒换热流道延伸。
通过采用上述技术方案，容料槽能够减小焊接部的焊接面积，容料槽沿着冷媒换热流道延伸，至少在其长度范围内降低了冷媒换热流道堵焊的风险，防堵焊的效果较好。
在一些实施例中，容料槽的宽度为5mm～20mm，和/或，容料槽的深度为2mm～3mm。
通过采用上述技术方案，容料槽能够容纳较多的焊料，且能够避免冷媒换热部件的厚度过大而占用过多的空间。
在一些实施例中，冷媒换热流道的宽度为5mm～20mm，和/或，冷媒换热流道的深度为2mm～3mm。
通过设置冷媒换热流道满足上述条件，能够使冷媒换热流道具有足够流量的冷媒且工作压力不会过大。
在一些实施例中，焊接部内设有通孔，通孔的内部形成容料空间。
通过在焊接部内设置通孔，通孔能够隔开冷媒换热流道与焊接宽度较大的焊接区域，并且，通孔能够容纳和/或排出多余的焊料，进一步降低了堵焊的风险。
在一些实施例中，通孔为圆形，通孔的孔径为3mm～15mm。
通过采用上述技术方案，通孔的尺寸能够适应冷媒换热部件的尺寸，通孔对冷媒换热部件结构强度的影响较小。
在一些实施例中，焊接部内设有容料槽和通孔中的至少一种，容料槽和/或通孔内形成容料空间。
通过采用上述技术方案，冷媒换热部件可依据其安装要求、尺寸等条件来设置容料槽和/或通孔，并可组合使用容料槽和通孔，以达到防堵焊的效果。
在一些实施例中，第一板体具有流道区域以及设于流道区域外侧的外围区域，冷媒换热流道位于流道区域，焊接部同时设于流道区域和外围区域；容料空间包括第一容料空间，第一容料空间设于外围区域。
通过采用上述技术方案，第一容料空间设于外围区域，能够将外围区域焊接宽度较宽的部分与冷媒换热流道隔开，降低了冷媒换热流道堵焊的风险。
在一些实施例中，沿第一板体的长度方向，第一容料空间设于第一板体的一侧，第一容料空间至冷媒换热流道的距离小于第一容料空间至第一板体边缘的距离；和/或，沿第一板体的宽度方向，第一容料空间设于第一板体的一侧，第一容料空间至冷媒换热流道的距离小于第一容料空间至第一板体边缘的距离。
通过采用上述技术方案，第一容料空间与冷媒换热流道的距离较近，能够隔开冷媒换热流道与换板外围焊接宽度较大的区域，防堵焊的效果较好。
在一些实施例中，第一容料空间沿着流道区域的边缘延伸；和/或，第一容料空间的数量为多个，多个第一容料空间沿着流道区域的边缘排列设置。
通过采用上述技术方案，第一容料空间能够沿着冷媒换热流道的延伸方向设置，以适应冷媒换热流道的长度，从而能够为冷媒换热流道提供较为全面的防堵焊效果。
在一些实施例中，容料空间还包括一个或多个第二容料空间，第二容料空间设于流道区域内。
通过采用上述技术方案，能够阻断多余的焊料朝向冷媒换热流道的内部流动，同样起到了防堵焊的效果。
在一些实施例中，冷媒换热流道包括多个并联设置的分流道，分流道包括进流支流道、回流支流道和连接于进流支流道与回流支流道之间的多个子流道，多个子流道依次相接，子流道沿第一方向延伸且多个子流道沿第二方向排列设置，第二方向与第一方向相交；进流支流道和/或回流支流道与第二容料空间相邻设置。
通过设置与进流支流道、回流支流道相邻设置的第二容料空间，能够优先对冷媒换热流道的关键部分进行保护，提高了冷媒换热部件的可靠性。
在一些实施例中，至少两个相邻的进流支流道之间设有多个第二容料空间；和/或，进流支流道与回流支流道之间设有多个第二容料空间。
通过采用上述技术方案，冷媒换热部件可灵活设置多个第二容料空间，来降低进流支流道与回流支流道发生堵焊的风险，提升了冷媒换热部件的焊接良率和可靠性。
在一些实施例中，冷媒换热流道还包括主进流道、主回流道，主进流道与多个进流支流道相连通，主回流道与多个回流支流道相连通；主进流道和/或主回流道与第二容料空间相邻设置。
通过采用上述技术方案，本申请实施例设置了与主进流道和/或主回流道相邻设置的第二容料空间，以降低主进流道和/或主回流道发生堵焊的风险，提高了冷媒换热部件的焊接良率和可靠性。
在一些实施例中，第一板体包括本体部和设于本体部表面的复合层，复合层作为焊料与第二板体进行焊接，容料空间能够容纳焊料。
通过采用上述技术方案，容料空间能够容纳部分多余的焊料，以阻断焊料朝向冷媒换热流道内流动，降低了冷媒换热流道发生堵焊的风险。
在一些实施例中，箱体包括箱本体和上盖，箱本体的两端分别设有开口，上盖和冷媒换热部件分别覆盖于箱本体两端的开口上，冷媒换热部件与电池单体组件通过导热胶相粘接。
通过采用上述技术方案，冷媒换热部件能够直接与电池单体组件进行换热，换热效率高且换热效果好，有效提升了电池装置的可靠性。
在一些实施例中，冷媒换热流道内的冷媒为相变工质。
通过采用上述技术方案，冷媒换热部件可为直冷板，直冷板对焊接性能要求较高，本申请实施例提供的冷媒换热部件内设有容料空间，可大大减小焊接堵塞的风险，提升了冷媒换热部件的制作良率。
本申请第二方面的实施例提供了一种冷媒换热部件，所述冷媒换热部件至少包括层叠设置的第一板体和第二板体，所述第一板体和所述第二板体合围成冷媒换热流道，所述第一板体具有焊接部，所述第二板体焊接连接于所述焊接部，所述焊接部内设有容料空间，所述容料空间具有朝向所述第二板体的开口，所述容料空间与所述冷媒换热流道相邻设置以阻挡所述焊料朝向所述冷媒换热流道内流动。
本申请第三方面的实施例提出了一种用电装置，包括如第一方面提供的电池装置或如第二方面提供的冷媒换热部件，电池装置用于提供电能。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或常规技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本申请一实施例提供的车辆的结构示意图；
图2为本申请一实施例提供的电池装置的结构示意图；
图3为本申请一实施例提供的电池单体的立体分解示意图；
图4为本申请一实施例提供的冷媒换热部件的立体分解图；
图5为本申请一实施例提供的第一板体的结构示意图；
图6为图5中A部的局部放大图；
图7为图5中B部的局部放大图；
图8为本申请一实施例提供的冷媒换热部件的局部结构的剖视示意图；
图9为本申请另一实施例提供的第一板体的结构示意图；
图10为本申请再一实施例提供的冷媒换热部件中第一板体的结构示意图；
图11为图10中C部的局部放大图；
图中标记的含义为：
1000、车辆；100、电池装置；200、控制器；300、马达；10、箱体；11、上盖；12、
箱本体；20、电池单体组件；21、电池单体；211、壳体；212、端盖；213、电极组件；214、电极端子；215、泄压机构；30、冷媒换热部件；301、容料空间；3011、第一容料空间；3012、第二容料空间；31、第一板体；31a、流道区域；31b、外围区域；311、流道部；312、焊接部；3121、连接区域；31211、第一区域；31212、第二区域；3122、容料槽；3123、通孔；313、本体部；314、复合层；32、第二板体；33、换热接头；34、冷媒换热流道；341、分流道；3411、进流支流道；3412、回流支流道；3413、子流道；342、主进流道；343、主回流道；40、底护板。
本发明的实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
本申请实施例中，电池单体可以为二次电池，二次电池是指在电池单体放电后可通过充电的方式使活性材料激活而继续使用的电池单体。
电池单体可以为锂离子电池、钠离子电池、钠锂离子电池、锂金属电池、钠金属电池、锂硫电池、镁离子电池、镍氢电池、镍镉电池、铅蓄电池等，本申请实施例对此并不限定。
本申请的实施例所提到的电池装置(Battery Apparatus)可包括一个或多个电池单体组件，用于提供电压和容量。电池单体组件(Battery Cell Assembly)可包括多个电池单体，多个电池单体通过汇流部件串联、并联或混联连接。
在一些实施例中，电池单体组件(Battery Cell Assembly)通常由多个电池单体排列形成。
作为示例，电池单体组件可以为电池模组(Battery Module)，电池模组由多个电池单体排列并固定形成一个独立模块。作为示例，电池模组可以通过扎带捆绑多个电池单体形成。
在一些实施例中，电池装置可以为电池包(battery Pack)，电池包包括箱体和一个或多个电池单体组件，电池单体组件容纳于箱体中。
作为示例，电池单体组件可以为电池模组，电池单体组件可通过将电池模组固定于箱体中的方式容纳于箱体中。
作为示例，电池单体组件也可通过将多个电池单体直接固定于箱体的方式容纳于箱体中。
近些年，新能源汽车有了飞跃式的发展，在电动汽车领域，电池作为电动汽车的动力源，起着不可替代的重要作用。其中，电池作为新能源汽车核心零部件在可靠性方面有着较高的要求。
快充是新能源车辆实现快速补能的一个主流解决方案，在实现过程遇到诸多挑战，电芯在快速充电过程中会产生大量的热量，从而会导致电池的内部温度急剧上升，进而影响到电池的使用性能和使用寿命，影响了电池的可靠性。
为此，一些电池中设置有用于对电池进行热管理的冷媒换热部件。冷媒换热部件包括两个相对的板体且两个板体焊接连接以共同形成供冷媒流动的流道，冷媒换热部件通过冷媒调节电池内部的温度。然而，在两个板体焊接连接的过程中，若流道附近的焊接区域宽度较大，焊料较多，容易导致焊料流进流道内而导致流道堵塞，进而引起冷媒换热部件的功能异常，影响了电池的热管理效果和电池运行的可靠性。
基于以上考虑，为了提升电池的可靠性，本申请的一个或多个实施例提供了一种电池装置，包括箱体、电池单体组件和冷媒换热部件，冷媒换热部件包括层叠设置的第一板体和第二板体，第一板体和第二板体合围成冷媒换热流道，第一板体具有焊接部且焊接部内设有容料空间，容料空间与冷媒换热流道相邻设置，容料空间具有朝向第二板体的开口，第二板体焊接连接于焊接部。
上述电池装置中，第一板体与第二板体焊接连接，第一板体的焊接部内设有容料空间且容料空间的开口朝向第二板体，通过设置容料空间，减小了第一板体和第二板体的接触面积，相应的减小了焊接面积，同时，容料空间阻断了焊料朝向冷媒换热流道移动的路径，并且容料空间还可以储存多余的焊料，因此，本申请实施例提供的方案降低了焊料流进冷媒换热流道内造成堵塞的问题，进而降低了因冷媒换热流道堵塞而引起冷媒换热部件的功能异常和电池热管理失效的风险，提升了电池装置的可靠性。
本申请实施例描述的技术方案均适用于各种使用电池单体的用电装置，例如，手机、便携式设备、笔记本电脑、电瓶车、电动玩具、电动工具、车辆、船舶和航天器等，例如，航天器包括飞机、火箭、航天飞机和宇宙飞船等。以下实施例为了方便说明，以本申请一实施例的一种用电装置为车辆为例进行说明。
请参照图1，图1为本申请一些实施例提供的车辆1000的结构示意图。车辆1000可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1000的内部设置有电池装置100，电池装置100可以设置在车辆1000的底部或头部或尾部。电池装置100可以用于车辆1000的供电，例如，电池装置100可以作为车辆1000的操作电源。车辆1000还可以包括控制器200和马达300，控制器200用来控制电池装置100为马达300供电，例如，用于车辆1000的启动、导航和行驶时的工作用电需求。
在本申请一些实施例中，电池装置100不仅可以作为车辆1000的操作电源，还可以作为车辆1000的驱动电源，代替或部分地代替燃油或天然气为车辆1000提供驱动动力。
请参照图2和图3，电池装置100包括箱体10和电池单体组件20，箱体10包括上盖11和箱本体12，上盖11与箱本体12相互盖合，上盖11与箱本体12共同限定出用于容纳电池单体21的容纳空间。箱本体12可以为一端开口的空心结构，上盖11可以为板状结构，上盖11盖合于箱本体12的开口侧，以使上盖11与箱本体12共同限定出容纳空间；上盖11和箱本体12也可以是均为一侧开口的空心结构，上盖11的开口侧盖合于箱本体12的开口侧。当然，上盖11和箱本体12形成的箱体10可以是多种形状，比如，圆柱体、长方体等。
电池单体组件20通常由多个电池单体21排列形成。电池单体21是组成电池装置100的最小单元，电池单体21包括有壳体211、端盖212、电极组件213以及其他的功能性部件。
端盖212是指盖合于壳体211的开口处以将电池单体21的内部环境隔绝于外部环境的部件。不限地，端盖212的形状可以与壳体211的形状相适应以配合壳体211。可选地，端盖212可以由具有一定硬度和强度的材质(如铝合金)制成，这样，端盖212在受挤压碰撞时就不易发生形变，使电池单体21能够具备更高的结构强度，使用可靠性也可以有所提高。端盖212上可以设置有如电极端子214、泄压机构215等的功能性部件。电极端子214可以用于与电极组件213电连接，以用于输出或输入电池单体21的电能。在一些实施例中，泄压机构215用于在电池单体21的内部压力或温度达到阈值时泄放内部压力。端盖212的材质也可以是多种的，比如，铜、铁、铝、不锈钢、铝合金、塑料等，本申请实施例对此不作特殊限制。在一些实施例中，在端盖212的内侧还可以设置有绝缘件，以降低短路的风险。示例性的，绝缘件可以是塑料、橡胶等。
壳体211是用于配合端盖212以形成电池单体21的内部环境的组件，其中，形成的内部环境可以用于容纳电极组件213、电解液以及其他部件。壳体211和端盖212可以是独立的部件，可以于壳体211上设置开口，通过在开口处使端盖212盖合开口以形成电池单体21的内部环境。不限地，也可以使端盖212和壳体211一体化，具体地，端盖212和壳体211可以在其他部件入壳前先形成一个共同的连接面，当需要封装壳体211的内部时，再使端盖212盖合壳体211。壳体211可以是多种形状和多种尺寸的，例如长方体形、圆柱体形、六棱柱形等。具体地，壳体211的形状可以根据电极组件213的具体形状和尺寸大小来确定。壳体211的材质可以是多种，比如，铜、铁、铝、不锈钢、铝合金、塑料等，本申请实施例对此不作特殊限制。
电极组件213是电池单体21中发生电化学反应的部件。壳体211内可以包含一个或更多个电极组件213。电极组件213主要由正极片和负极片卷绕或层叠放置形成，并且通常在正极片与负极片之间设有隔膜。正极片和负极片具有活性物质的部分构成电极组件213的主体部，正极片和负极片不具有活性物质的部分各自构成极耳。正极极耳和负极极耳可以共同位于主体部的一端或是分别位于主体部的两端。在电池装置100的充放电过程中，正极活性物质和负极活性物质与电解液发生反应，极耳连接电极端子214以形成电流回路。在一些实施例中，电池单体21的一侧设置有泄压机构215，泄压机构215是指在电池单体21的内部压力或温度达到预定阈值时致动以泄放内部压力的元件或部件。
请参照图2、图4至图6，本申请第一方面的实施例提出了一种电池装置100，包括箱体10、电池单体组件20及冷媒换热部件30，电池单体组件20设于箱体10内，冷媒换热部件30配置为与电池单体组件20进行热交换，冷媒换热部件30至少包括层叠设置的第一板体31和第二板体32，第一板体31和第二板体32合围成冷媒换热流道34，第一板体31具有焊接部312，第二板体32焊接连接于焊接部312，焊接部312内设有容料空间301，容料空间301具有朝向第二板体32的开口，容料空间301与冷媒换热流道34相邻设置以阻挡焊料朝向冷媒换热流道34内流动。
箱体10用于容纳电池单体组件20，示例的，箱体10包括上盖11和箱本体12，上盖11与箱本体12围成容纳空间。
电池单体组件20包括多个电池单体21，示例的，电池单体组件20包括多个沿第一方向X依次排列的电池单体21，多组电池单体组件20沿第二方向Y依次排列，使得电池单体21呈阵列状排布，第二方向Y与第一方向X相交。可选的，第一方向X可为箱体10的长度方向，第二方向Y可为箱体10的宽度方向；在其他实施例中，第一方向X和/或第二方向Y也可为与箱体10的长度方向倾斜相交。
冷媒换热部件30是用于容纳冷媒以调节电池单体组件20的温度的部件。电池单体组件20循环过程中伴随产生热量，可以通过冷媒换热部件30对电池单体组件20进行降温，冷媒换热部件30也可称为冷却件、冷却系统、冷板等。当然，在一些的情况下，冷媒换热部件30也可以用于对电池单体组件20进行加热，在此不做赘述。
冷媒换热部件30可与电池单体组件20直接连接，也可与电池单体组件20间接连接，只要能与电池单体组件20交换热量即可。在一些实施例中，冷媒换热部件30连接于箱体10的底部。示例的，箱体10包括上盖11和箱本体12，冷媒换热部件30连接于箱本体12背离上盖11的一侧。冷媒换热部件30可设于箱体10内部、箱体10的外部，或者作为封闭箱本体12的下盖，此时箱本体12的两端开口，上盖11和冷媒换热部件30分别盖设于箱本体12的两侧。
冷媒换热部件30至少包括层叠设置的第一板体31和第二板体32，第一板体31和第二板体32可具有相同或相似的尺寸，第一板体31和第二板体32的材质可为金属，也可为复合材料或其他材质。
第一板体31和第二板体32合围成冷媒换热流道34。示例的，第一板体31上加工有未封闭的流道部311，第一板体31与第二板体32连接后能够将流道部311封闭以形成冷媒换热流道34；在其他实施例中，也可为第二板体32上加工有未封闭的流道部311，或者第一板体31和第二板体32上设有相对的流道部311。
冷媒换热流道34供冷媒流动，例如，冷媒可以包括含氟冷却介质等。冷媒换热流道34可以通过管道等与压缩机、水泵、风机、冷凝器等其他换热设备连接，使冷媒流通至其他换热设备降温，将电池内部热量带出。
第一板体31具有焊接部312，焊接部312是指第一板体31上用于与第二板体32相焊接的部分，通过将焊接部312与第二板体32相焊接，能够密封冷媒换热流道34。可以理解，焊接部312至少包括第一板体31的外围部分，依据冷媒换热流道34的形状，焊接部312还可包括冷媒换热流道34的不同流道部之间的部分。
焊接部312内设有容料空间301，容料空间301的开口朝向第二板体32，容料空间301可通过孔、槽等结构形成。通过设置容料空间301，减小了第一板体31和第二板体32的接触面积，也减小了焊接部312的焊接面积；同时由于容料空间301与冷媒换热流道34相邻设置，容料空间301能够阻断焊料朝向冷媒换热流道34移动，并且，容料空间301还可以容纳部分焊料，进一步降低了焊料流进冷媒换热流道34内的风险。焊料是用于添加到焊缝、堆焊层和钎缝中的金属合金材料的总称，在本实施例中，焊料是第一板体31与第二板体32之间的焊接材料，第一板体31与第二板体32通过焊料固定连接。示例的，焊料包括第一板体31和/或第二板体32表面的材料，例如，焊料包括第一板体31和/或第二板体32表面的复合层。
本申请实施例提供的电池装置100包括箱体10、电池单体组件20和冷媒换热部件30，冷媒换热部件30内形成有冷媒换热流道34，以对电池单体组件20进行热管理，提高了电池装置100运行的可靠性；冷媒换热部件30包括第一板体31和第二板体32，第一板体31的焊接部312内设有容料空间301且容料空间301的开口朝向第二板体32，通过设置容料空间301，减小了第一板体31和第二板体32的接触面积，相应的减小了焊接面积，同时，容料空间301阻断了焊料朝向冷媒换热流道34移动的路径，并且容料空间301还可以储存多余的焊料，因此，本申请实施例提供的方案降低了焊料流进冷媒换热流道34内造成堵塞的问题，进而降低了因冷媒换热流道34堵塞而引起冷媒换热部件30的功能异常和电池装置100的热管理失效的风险，提升了电池装置100的可靠性，提高了冷媒换热部件30的焊接良率，降低了冷媒换热部件30的成本。
请参照图4至图7，在一些实施例中，焊接部312包括多个间隔设置的连接区域3211，至少一个连接区域3211内设有容料空间301；在冷媒换热流道34的一侧，容料空间301将连接区域3211分隔为沿预设方向分布的第一区域32111和第二区域32112，第一区域32111位于冷媒换热流道34与容料空间301之间；容料空间301用于阻挡焊料从第二区域32112流向第一区域32111。
可选的，沿预设方向，第一区域32111的宽度小于或等于第二区域32112的宽度。
焊接部312包括多个间隔设置的连接区域3211，每个连接区域3211焊接连接于第二板体；冷媒换热流道34在相邻连接区域3211之间延伸，一个或多个连接区域3211内设有容料空间301。
“预设方向”是容料空间301将连接区域3211进行分隔的方向。
如图5、图6所示，示例的，在冷媒换热部件30的长度方向(X方向)上，在冷媒换热流道34的一侧，容料空间301将连接区域3211分隔为沿冷媒换热部件30的长度方向分布的第一区域32111和第二区域32112，第一区域32111位于冷媒换热流道34与容料空间301之间；可选的，沿冷媒换热部件30的长度方向，第一区域32111的宽度小于或等于第二区域32112的宽度，即容料空间301与冷媒换热流道34相邻设置；若第一区域3211的宽度小于第二区域32112宽度，则相较于连接区域3211的边缘，容料空间301更靠近冷媒换热流道34。
示例的，在冷媒换热部件30的宽度方向(Y方向)上，在冷媒换热流道34的一侧，容料空间301将连接区域3211分隔为沿冷媒换热部件30的宽度方向分布的第一区域32111和第二区域32112，第一区域32111位于冷媒换热流道34与容料空间301之间，第二区域32112位于容料空间301与冷媒换热部件的边缘之间；可选的，沿冷媒换热部件30的宽度方向，第一区域32111的宽度小于或等于第二区域32112的宽度，即容料空间301与冷媒换热流道34相邻设置；若第一区域3211的宽度小于第二区域32112宽度，则相较于连接区域3211的边缘，容料空间301更靠近冷媒换热流道34。
如图5、图7所示，冷媒换热流道34可为多种排布方式，且冷媒换热流道34形成了多个流道支路，在一些实施例中，相邻流道支路之间的连接区域3211较宽，增大了堵焊的风险。因此，流道支路之间的连接区域3211内也可设置容料空间301，在冷媒换热流道34的一侧，容料空间301将流道支路之间的连接区域3211分隔为第一区域32111和第二区域32112，可选的，沿着垂直于容料空间301的方向，第一区域32111的宽度小于或等于第二区域32112的宽度。
通过采用上述技术方案，容料空间301与冷媒换热流道34相邻设置，容料空间301能够阻挡第二区域32112的焊料朝向第一区域32111流动，以保护冷媒换热流道34。
可选的，沿预设方向，第一区域32111的宽度小于或等于第二区域32112的宽度，容料空间301和与其相邻的部分冷媒换热流道34之间的距离小于或等于该容料空间301至连接区域3211远离该部分冷媒换热流道34一侧的距离，能够使容料空间301与冷媒换热流道34之间的距离较小，防堵塞的效果较好。
请参照图4、图5，第一板体31朝向第二板体32的一面凹设有流道部311，流道部311与第二板体32合围成冷媒换热流道34。
流道部311凹设于第一板体31，在第一板体31和第二板体32焊接连接之后，流道部311与第二板体32共同围成了冷媒换热流道34。容料空间301也设于第一板体31，容料空间301和流道部311能够一同制作于第一板体31上，提升了制造效率，例如，容料空间301和流道部311通过冲压的方式制作于第一板体31上。
可选的，第一板体31设于第二板体32背离电池单体组件20的一侧，第二板体32可为平板，以便于与电池单体组件20贴合和换热。
通过采用上述技术方案，容料空间301和流道部311均制作于第一板体31上，第二板体32可为平板结构，冷媒换热部件30的制作方式简单方便，制作效率较高。
在其他实施例中，流道部311和容料空间301可设于第一板体31和第二板体32中的任一者，或者同时设于第一板体31和第二板体32。
在一些实施例中，容料空间301和与其相邻设置的部分冷媒换热流道34之间具有预设距离，该预设距离小于或等于35mm。
由于容料空间301的作用避免冷媒换热流道34堵塞，本申请实施例设置容料空间301与冷媒换热流道34之间的预设距离小于或等于35mm，以起到良好的防堵塞效果。例如，预设距离为3mm、5mm、15mm、20mm、30mm、35mm等；当容料空间301有多个时，容料空间301与冷媒换热流道34之间的距离可不相等，只要满足上述范围即可。
当冷媒换热流道34一侧的焊接宽度大于35mm时，容易发生堵焊的问题。本申请实施例设置冷媒换热流道34与容料空间301之间的预设距离小于或等于35mm，能够有效降低冷媒换热流道34堵塞的风险。
在一些实施例中，预设距离的范围为5mm～20mm。例如，预设距离为5mm、10mm、15mm、20mm等。容料空间301与冷媒换热流道34之间的预设距离可依据冷媒换热流道34的宽度、冷媒换热流道34一侧的焊接面积等因素确定，以降低堵焊的风险。
通过设置预设距离大于或等于5mm，降低容气空间与冷媒换热流道34直接连通的风险，降低了冷媒换热部件30的制造难度；通过设置预设距离小于或等于20mm，能够更好地降低堵焊风险。
请参照图4至图8，在一些实施例中，焊接部312内设有容料槽3122，容料槽3122的内部形成容料空间301。
容料槽3122凹设于第一板体31朝向第二板体32的一面，容料槽3122可为条形、弧形等形状，容料槽3122也可与冷媒换热流道34的至少部分仿形设置，从而容料槽3122可作为假流道。容料槽3122的内部形成容料空间301，容料槽3122的开口朝向第二板体32，以容纳第一板体31和第二板体32之间多余的焊料。另外，容料槽3122可通过冲压等方式进行制作，不仅能够容纳焊料，还能够提升冷媒换热部件30的结构强度。
通过采用上述技术方案，通过在第一板体31的焊接部312内设置容料槽3122，不仅能够利用容料槽3122隔开冷媒换热流道34和宽度较大的焊接区域，降低流道堵焊的风险，还能够利用容料槽3122提升第一板体31的结构强度，降低了第一板体31受外力作用后发生损坏的风险。
请参照图5，在一些实施例中，容料槽3122呈条形，容料槽3122沿着与其相邻的部分冷媒换热流道34延伸。
容料槽3122成条形，即容料槽3122的长度尺寸大于容料槽3122的宽度尺寸。容料槽3122沿着冷媒换热流道34延伸，从而容料槽3122所形成的容料空间301也沿着冷媒换热流道34延伸。如图5所示，容料槽3122的数量为多个，多个容料槽3122均为条形。在冷媒换热流道34的外侧，每条容料槽3122均沿着冷媒换热流道34延伸且多条容料槽3122沿着冷媒换热流道34间隔设置，降低了冷媒换热流道34堵焊的风险。
通过采用上述技术方案，容料槽3122能够减小焊接部312的焊接面积，容料槽3122沿着冷媒换热流道34延伸，至少在其长度范围内降低了冷媒换热流道34堵焊的风险，防堵焊的效果较好。
请继续参照图5，在一些实施例中，容料槽3122的宽度为5mm～20mm，和/或，容料槽3122的深度为2mm～3mm。
容料槽3122也可称为假流道，容料槽3122中不需要流通冷媒。容料槽3122的宽度为5mm～20mm，例如，容料槽3122的宽度可为5mm、8mm、10mm、15mm、20mm等。容料槽3122的宽度可与冷媒换热流道34的宽度相等，也可不等，在此不作限制。容料槽3122的宽度大于或等于5mm，可以使得容料槽3122能够容纳较多的焊料以及有效隔开冷媒换热流道34和焊接宽度较大的区域；容料槽3122的宽度小于或等于20mm，可以适应冷媒换热部件30的整体尺寸。
容料槽3122的深度为2mm、2.5mm、2.6mm、2.7mm、2.8mm、3mm等。通过设置容料槽3122的深度大于或等于2mm，可以使得容料槽3122能够容纳较多的焊料；容料槽3122的深度小于或等于3mm，可以适应冷媒换热部件30的整体尺寸，避免冷媒换热部件30的厚度过大而占用过多的空间。
在其他实施例中，容料槽3122的宽度也可为其他范围，以适应冷媒换热部件30的尺寸和防堵焊的需求。
通过采用上述技术方案，容料槽3122的尺寸能够适应防堵焊的要求且匹配冷媒换热部件30的尺寸，易于实现。
在一些实施例中，冷媒换热流道34的宽度为5mm～20mm，和/或，冷媒换热流道34的深度为2mm～3mm。
冷媒换热流道34的宽度是指冷媒换热流道34中冷媒流通路径上的宽度，冷媒换热流道34的宽度影响冷媒换热流道34的过流截面面积。在一些实施例中，冷媒换热流道34的宽度W1可为5mm、8mm、10mm、15mm、20mm等。冷媒换热流道34的宽度大于或等于5mm，可以使得冷媒换热流道34具有足够流量的冷媒；冷媒换热流道34的宽度小于或等于20mm，可以使冷媒的工作压力不会过大而影响冷媒换热部件30的结构可靠性。
冷媒换热流道34的深度可为2mm、2.5mm、2.7mm、3mm等。通过设置冷媒换热流道34的深度大于或等于2mm，可以使得冷媒换热流道34具有足够流量的冷媒；冷媒换热流道34的深度小于或等于3mm，可以使冷媒的工作压力不会过大而影响冷媒换热部件30的结构可靠性。
若流道部311和容料槽3122均凹设于第一板体31面向第二板体32的一面，流道部311和容料槽3122通过冲压的方式制作在第一板体31上，冷媒换热流道34和容料槽3122的底部会相对于第一板体31凸出设置，通过设置冷媒换热流道34和容料槽3122的深度小于或等于3mm，能够控制冷媒换热流道34和容料槽3122凸出的高度，减小冷媒换热部件30的整体尺寸，适应安装的要求。
通过设置冷媒换热流道34满足上述条件，能够使冷媒换热流道34具有足够流量的冷媒且工作压力不会过大。另外，容料槽3122的宽度可与冷媒换热流道34的宽度相等或相近，容料槽3122的深度可与冷媒换热流道34的深度相等或相近，从而容料槽3122方便制造，占用的空间较小。
请参照图9至图11，在一些实施例中，焊接部312内设有通孔3123，通孔3123的内部形成容料空间301。
通孔3123是沿第一板体31的厚度方向贯穿第一板体31的孔，示例的，如图9所示，通孔3123为圆孔；如图10和图11所示，通孔3123为长条孔，例如通孔3123可为狭缝状的长条孔。
通孔3123的数量可为一个或多个，示例的，通孔3123的数量有多个，多个通孔3123间隔分布于冷媒换热流道34的外侧以及冷媒换热流道34中距离较远的流道部311之间。
通过在焊接部312内设置通孔3123，通孔3123能够隔开冷媒换热流道34与焊接宽度较大的焊接区域，并且，通孔3123能够容纳和/或排出多余的焊料，进一步降低了堵焊的风险。另外，通孔3123还能够在焊接过程中排出第一板体31和第二板体32之间的气体，起到了防困气的效果。
需要注意的是，在一些实施例中，通孔3123能够会被焊料填充或部分填充，这并不影响通孔3123在焊接过程中起到了防堵焊的效果。
如图9所示，在一些实施例中，通孔3123为圆形，通孔3123的孔径为3mm～15mm。
通孔3123为圆形的通孔3123，通孔3123的孔径可相等，也可不等，例如，在第一板体31和第二板体32连接面积较大的区域设置孔径较大的通孔3123。
通孔3123的孔径可为3mm、5mm、6mm、8mm、10mm、15mm等。通孔3123的孔径大于或等于3mm，以便于利用通孔3123隔开冷媒换热流道34和宽度较大的焊接区域；通孔3123的孔径小于或等于15mm，一方面，通孔3123的尺寸能够适应冷媒换热部件30的尺寸，另一方面，通孔3123对冷媒换热部件30的结构强度的影响较小。
在其他实施例中，通孔3123也可为方形、椭圆形等其他形状。
请参照图5至图11，在一些实施例中，焊接部312内设有容料槽3122和通孔3123中的至少一种，容料槽3122和/或通孔3123内形成容料空间301。
具体的，容料空间301的数量可为多个，容料空间301可由容料槽3122或通孔3123形成。例如，由于冷媒换热部件30的边缘区域往往需要与底护板或箱体10接触，可能没有足够的空间来设置容料槽3122，这种情况可以在一定区域内设置通孔3123，阻止焊料的流动，在空间允许时优先设置容料槽3122，空间不够时设置通孔3123加以辅助；在焊接宽度较宽区域设置条形的通孔3123(或称槽孔)，阻断焊料的流动。
通过采用上述技术方案，冷媒换热部件30可依据其安装要求、尺寸等条件来设置容料槽3122和/或通孔3123，并可组合使用容料槽3122和通孔3123，以达到防堵焊的效果。
请参照图4至图11，在一些实施例中，第一板体31具有流道区域31a以及设于流道区域31a外侧的外围区域31b，冷媒换热流道34位于流道区域31a，焊接部312同时设于流道区域31a和外围区域31b；容料空间301包括第一容料空间3011，第一容料空间3011设于外围区域31b。
流道区域31a是冷媒换热流道34所在的区域，也是一个完整的区域，为方便示意，图5中用一圈虚线示意了流道区域31a，其中，流道入口和流道出口可在流道区域31a内，也可在流道区域31a外，本申请对此不作限制；图5还用一圈虚线示意了焊接部312的边缘，其中，焊接部312的边缘可靠近第一板体31的边缘，也可与第一板体31的边缘重合，本申请对此不作限制。
外围区域31b是设于流道区域31a外侧的区域，焊接部312同时设于流道区域31a和外围区域31b，焊接部312是指第一板体31上用于与第二板体32上焊接的部位，焊接部312处于流道区域31a内的部分能够隔开冷媒换热流道34的不同流道部311，焊接部312处于外围区域31b内的部分能够将第一板体31和第二板体32密封连接。
容料空间301包括设于外围区域31b的第一容料空间3011，第一容料空间3011的数量可为一个或多个，例如，多个第一容料空间3011沿着流道区域31a的边缘延伸。
容料空间301包括设于外围区域31b的第一容料空间3011，由于外围区域31b的焊接宽度较宽，第一容料空间3011设于外围区域31b，能够将外围区域31b焊接宽度较宽的部分与冷媒换热流道34隔开，降低了冷媒换热流道34堵焊的风险。
在一些实施例中，沿第一板体31的长度方向，第一容料空间3011设于第一板体31的一侧，第一容料空间3011至冷媒换热流道34的距离小于第一容料空间3011至第一板体31边缘的距离；和/或，沿第一板体31的宽度方向，第一容料空间3011设于第一板体31的一侧，第一容料空间3011至冷媒换热流道34的距离小于第一容料空间3011至第一板体31边缘的距离。
请参照图5，第一板体31的长度方向为X方向，第一板体31的宽度方向为Y方向。沿第一板体31的长度方向，第一容料空间3011设于第一板体31的一侧，第一容料空间3011与冷媒换热流道34之间的距离小于第一容料空间3011至第一板体31边缘的距离，即第一容料空间3011更靠近冷媒换热流道34。
同理，沿第一板体31的宽度方向，第一容料空间3011设于第一板体31的一侧，第一容料空间3011至冷媒换热流道34的距离小于第一容料空间3011至第一板体31边缘的距离，即第一容料空间3011更靠近冷媒换热流道34。
通过采用上述技术方案，第一容料空间3011与冷媒换热流道34的距离较近，能够隔开冷媒换热流道34与换板外围焊接宽度较大的区域，防堵焊的效果较好。
在一些实施例中，第一容料空间3011沿着流道区域31a的边缘延伸；和/或，第一容料空间3011的数量为多个，多个第一容料空间3011沿着流道区域31a的边缘排列设置。
第一容料空间3011可为圆形、方形、椭圆形、长条形等。可选的，如图5、图11所示，第一容料空间3011由条形的容料槽3122或条形通孔3123形成，第一容料空间3011为条形，且第一容料空间3011沿着流道区域31a的边缘延伸。可选的，如图5至图9所示，多个第一容料空间3011沿着流道区域31a的边缘排列设置。
通过采用上述技术方案，第一容料空间3011能够沿着冷媒换热流道34的延伸方向设置，以适应冷媒换热流道34的长度，从而能够为冷媒换热流道34提供较为全面的防堵焊效果。
请继续参照图5至图11，在一些实施例中，容料空间301还包括一个或多个第二容料空间3012，第二容料空间3012设于流道区域31a内。
冷媒换热流道34可为多种排布方式，且冷媒换热流道34形成了多个流道支路，在一些实施例中，相邻流道支路之间的距离较远，增大了堵焊的风险。为此，本申请实施例在流道区域31a内设置一个或多个第二容料空间3012，能够阻断多余的焊料朝向冷媒换热流道34的内部流动，同样起到了防堵焊的效果。
请参照图4、图5，在一些实施例中，冷媒换热流道34包括多个并联设置的分流道341，分流道341包括进流支流道3411、回流支流道3412和连接于进流支流道3411与回流支流道3412之间的多个子流道3413，多个子流道3413依次相接，子流道3413沿第一方向延伸且多个子流道3413沿第二方向排列设置，第二方向与第一方向相交；进流支流道3411和/或回流支流道3412与第二容料空间3012相邻设置。
多个分流道341并联设置，从而多个分流道341能够分别独立地供冷媒循环流动。冷媒换热部件30具有流道入口和流道出口，每个分流道341均与流道入口和流道出口相连通。在一些实施例中，冷媒换热部件30还包括换热接头33，换热接头33连接于第一板体31和第二板体32中的至少一者，换热接头33与流道入口、流道出口连通，换热接头33用于将冷媒换热部件30连接于其他换热设备，以使冷媒流入和流出。
每个分流道341包括进流支流道3411、回流支流道3412和多个子流道3413，从流道入口进入冷媒换热部件30的冷媒，从进流支流道3411依次流过多个子流道3413，然后进入回流支流道3412流向流道出口。多个子流道3413并排设置，对电池单体组件20的换热效果较好；子流道3413沿第一方向延伸且多个子流道3413沿第二方向排列设置，第一方向可为电池单体组件20中多个电池单体21排列的方向，第一方向为图中X方向，第二方向可与第一方向垂直，第二方向为图中Y方向。可选的，子流道3413还可包括多条并列的子流道3413，以提升换热的可靠性和增大换热面积。由于子流道3413的排布较为密集，子流道3413发生堵焊的风险较小。
进流支流道34113411、回流支流道3412间隔设置于流道区域31a，支流道之间可能存在焊接宽度大的区域，为此，本申请设置第二容料空间3012与进流支流道3411和/或回流支流道3412相邻设置，以降低进流支流道3411和/或回流支流道3412发生堵焊的风险；另外，进流支流道34113411、回流支流道3412若发生堵焊，会影响整个分流道341，降低了热管理的可靠性，通过设置与进流支流道34113411、回流支流道3412相邻设置的第二容料空间3012，能够优先对冷媒换热流道34的关键部分进行保护，提高了冷媒换热部件30的可靠性。
在一些实施例中，至少两个相邻的进流支流道3411之间设有多个第二容料空间3012；和/或，进流支流道3411与回流支流道3412之间设有多个第二容料空间3012。
如图4和图5所示，第二容料空间3012的数量可为多个，例如，两个相邻的进流支流道3411之间具有较宽的焊接宽度，则在二者之间设置多个第二容料空间3012，每个第二容料空间3012与至少一条进流支流道3411相邻设置。
在冷媒流动的过程中，冷媒与电池单体21进行换热，可能会使回流支流道3412内的冷媒具有较高的温度，因此，本申请实施例将回流支流道3412设于流道区域31a的边缘位置。可选的，至少一条回流支流道3412可与电池单体组件20错开设置。
由于回流支流道3412设于流道区域31a的边缘位置，进流支流道3411与回流支流道3412之间可能存在焊接宽度较宽的区域，则在二者之间设置多个第二容料空间3012，每个第二容料空间3012与进流支流道3411和/或回流支流道3412相邻设置。
通过采用上述技术方案，冷媒换热部件30可灵活设置多个第二容料空间3012，来降低进流支流道3411与回流支流道3412发生堵焊的风险，提升了冷媒换热部件30的焊接良率和可靠性。
如图4和图5所示，在一些实施例中，冷媒换热流道34还包括主进流道342、主回流道343，主进流道342与多个进流支流道3411相连通，主回流道343与多个回流支流道3412相连通；主进流道342和/或主回流道343与第二容料空间3012相邻设置。
主进流道342能够将冷媒分流至多个进流支流道3411，主回流道343能够汇集多个回流支流道3412流出的冷媒，因此，主进流道342和主回流道343较为关键，若发生堵焊，将使整个冷媒换热部件30的功能失效。为此，本申请实施例设置了与主进流道342和/或主回流道343相邻设置的第二容料空间3012，以降低主进流道342和/或主回流道343发生堵焊的风险，提高了冷媒换热部件30的焊接良率和可靠性。
请参照图8，图8是冷媒换热部件30局部结构的剖视示意图，具体为冷媒换热部件30沿着冷媒换热流道34和容料空间301剖开的剖视示意图。在一些实施例中，第一板体31包括本体部313和设于本体部313表面的复合层314，复合层314作为焊料与第二板体32进行焊接，容料空间301能够容纳焊料。
本体部313可为金属材质，复合层314的熔点低于本体部313的熔点，例如，复合层314可为铝层。第一板体31和第二板体32可通过钎焊的方式进行焊接。在焊接时，先在第一板体31的表面涂布钎层，然后将第一板体31和第二板体32层叠并焊接，复合层314作为焊料，能够将第一板体31和第二板体32固定连接。
容料空间301能够容纳部分多余的焊料，以阻断焊料朝向冷媒换热流道34内流动，降低了冷媒换热流道34发生堵焊的风险。
在其他实施例中，第二板体32的表面也可设有复合层314，第二板体32上的复合层314也可作为焊料，容料空间301同样能够容纳多余的焊料。
在其他实施例中，第一板体31和第二板体32也可采用其他焊料进行焊接，则容纳空间同样能够容纳焊料。
在一些实施例中，箱体10包括箱本体12和上盖11，箱本体12的两端分别设有开口，上盖11和冷媒换热部件30分别覆盖于箱本体12两端的开口上，冷媒换热部件30与电池单体组件20通过导热胶相粘接。
冷媒换热部件30设于箱体10和多个电池单体组件20的底部，且冷媒换热部件30可作为箱体10的底板使用，简化了电池装置100的结构，有助于节省车辆空间。
冷媒换热部件30与电池单体组件20通过导热胶相粘接，冷媒换热部件30能够直接与电池单体组件20进行换热，换热效率高且换热效果好，有效提升了电池装置100的可靠性。
电池装置100还包括底护板40，底护板40连接于冷媒换热部件30背离箱本体12的一侧，底护板能够对冷媒换热部件30起到防护作用，降低用电装置在使用过程中对冷媒换热部件30的碰撞力，从而冷媒换热部件30不易发生碰撞变形的问题。
在其他实施例中，冷媒换热部件30也可设于箱本体12的内部或外部，只要能与电池单体组件20换热即可。
在一些实施例中，冷媒换热流道内的冷媒为相变工质。
冷媒可为相变工质，在冷媒的流动过程中，冷媒可为气液两相态。冷媒的种类可以为R134A(四氟乙烷)，R1234YF(四氟丙烯)，R1233ZD(一氯三氟丙烯)等。
冷媒换热部件30采用冷媒换热，冷媒换热部件30可为直冷板，直冷板具有换热效率高的优点，同时直冷板对结构强度和焊接性能要求较高，本申请实施例提供的冷媒换热部件30内设有容料空间301，可大大减小焊接堵塞的风险，提升了冷媒换热部件30的制作良率。
在一些实施例中，电池装置100包括箱体10、电池单体组件20及冷媒换热部件30，电池单体组件20设于箱体10内，冷媒换热部件30连接于箱体10，冷媒换热部件30包括层叠设置的第一板体31和第二板体32，第一板体31和第二板体32合围成冷媒换热流道34，第一板体31具有焊接部312且焊接部312内设有容料空间301，容料空间301与冷媒换热流道34相邻设置，容料空间301的开口朝向第二板体32，第二板体32焊接连接于焊接部312。焊接部312内设有容料槽3122和通孔3123中的至少一种，容料槽3122和/或通孔3123内形成容料空间301。第一板体31具有流道区域31a以及设于流道区域31a外侧的外围区域31b，容料空间301包括设于外围区域31b的第一容料空间3011，和/或设于流道区域31a的第二容料空间3012。本申请实施例提供的电池装置100降低了冷媒换热部件30发生堵焊的风险，提高了冷媒换热部件30的焊接良率，降低了冷媒换热部件30的制造成本，提升了热管理的可靠性和电池装置100的可靠性。
本申请第二方面的实施例提供了一种冷媒换热部件30，冷媒换热部件30至少包括层叠设置的第一板体31和第二板体32，第一板体31和第二板体32合围成冷媒换热流道34，第一板体31具有焊接部312，第二板体32焊接连接于焊接部312，焊接部312内设有容料空间301，容料空间301具有朝向第二板体32的开口，容料空间301与冷媒换热流道34相邻设置以阻挡焊料朝向冷媒换热流道34内流动。
本申请实施例提供的冷媒换热部件30可为第一方面任一实施例中的冷媒换热部件。
本申请实施例提供的冷媒换热部件30包括第一板体31和第二板体32，通过设置容料空间301，减小了第一板体31和第二板体32的接触面积，相应的减小了焊接面积，同时，容料空间301阻断了焊料朝向冷媒换热流道34移动的路径，容料空间301还可以储存多余的焊料，本申请实施例提供的方案降低了焊料流进冷媒换热流道34内造成堵塞的问题，进而降低了因冷媒换热流道34堵塞而引起冷媒换热部件30的功能异常的风险，提高了冷媒换热部件30的焊接良率，降低了冷媒换热部件30的成本。
本申请第三方面的实施例提供了一种用电装置，包括如第一方面提供的电池装置100或第二方面提供的冷媒换热部件30，电池装置100用于提供电能。
用电装置可以是前述任一应用电池装置100的设备或系统。
以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围，均应包含在本申请的保护范围之内。

Claims (25)

  1. 一种电池装置，其特征在于，包括：
    箱体；
    电池单体组件，设于所述箱体内；
    冷媒换热部件，所述冷媒换热部件配置为与所述电池单体组件进行热交换，所述冷媒换热部件至少包括层叠设置的第一板体和第二板体，所述第一板体和所述第二板体合围成冷媒换热流道，所述第一板体具有焊接部，所述第二板体焊接连接于所述焊接部，所述焊接部内设有容料空间，所述容料空间具有朝向所述第二板体的开口，所述容料空间与所述冷媒换热流道相邻设置以阻挡所述焊料朝向所述冷媒换热流道内流动。
  2. 如权利要求1所述的电池装置，其特征在于，
    所述焊接部包括多个间隔设置的连接区域，至少一个所述连接区域内设有所述容料空间；
    在所述冷媒换热流道的一侧，所述容料空间将所述连接区域分隔为沿预设方向分布的第一区域和第二区域，所述第一区域位于所述冷媒换热流道与所述容料空间之间，所述容料空间用于阻挡所述焊料从所述第二区域流向所述第一区域。
  3. 如权利要求2所述的电池装置，其特征在于，沿所述预设方向，所述第一区域的宽度小于或等于所述第二区域的宽度。
  4. 如权利要求1-3中任一项所述的电池装置，其特征在于，所述第一板体朝向所述第二板体的一面凹设有流道部，所述流道部与所述第二板体合围成所述冷媒换热流道。
  5. 如权利要求1-4中任一项所述的电池装置，其特征在于，
    所述容料空间和与其相邻设置的部分所述冷媒换热流道之间具有预设距离，所述预设距离小于或等于35mm。
  6. 如权利要求5所述的电池装置，其特征在于，所述预设距离的范围为5mm～20mm。
  7. 如权利要求1-6中任一项所述的电池装置，其特征在于，所述焊接部内设有容料槽，所述容料槽的内部形成所述容料空间。
  8. 如权利要求7所述的电池装置，其特征在于，所述容料槽呈条形，所述容料槽沿着与其相邻的部分所述冷媒换热流道延伸。
  9. 如权利要求7或8所述的电池装置，其特征在于，所述容料槽的宽度为5mm～20mm，和/或，所述容料槽的深度为2mm～3mm。
  10. 如权利要求1-9中任一项所述的电池装置，其特征在于，所述冷媒换热流道的宽度为5mm～20mm，和/或，所述冷媒换热流道的深度为2mm～3mm。
  11. 如权利要求1-10中任一项所述的电池装置，其特征在于，所述焊接部内设有通孔，所述通孔的内部形成所述容料空间。
  12. 如权利要求11所述的电池装置，其特征在于，所述通孔为圆形，所述通孔的孔径为3mm～15mm。
  13. 如权利要求1-12中任一项所述的电池装置，其特征在于，所述焊接部内设有容料槽和通孔中的至少一种，所述容料槽和/或所述通孔内形成所述容料空间。
  14. 如权利要求1-13中任一项所述的电池装置，其特征在于，所述第一板体具有流道区域以及设于所述流道区域外侧的外围区域，所述冷媒换热流道位于所述流道区域，所述焊接部同时设于所述流道区域和所述外围区域；
    所述容料空间包括第一容料空间，所述第一容料空间设于所述外围区域。
  15. 如权利要求14所述的电池装置，其特征在于，
    沿所述第一板体的长度方向，所述第一容料空间设于所述第一板体的一侧，所述第一容料空间至所述冷媒换热流道的距离小于所述第一容料空间至所述第一板体边缘的距离；和/或，
    沿所述第一板体的宽度方向，所述第一容料空间设于所述第一板体的一侧，所述第一容料空间至所述冷媒换热流道的距离小于所述第一容料空间至所述第一板体边缘的距离。
  16. 如权利要求14或15所述的电池装置，其特征在于，
    所述第一容料空间沿着所述流道区域的边缘延伸；和/或，
    所述第一容料空间的数量为多个，多个所述第一容料空间沿着所述流道区域的边缘排列设置。
  17. 如权利要求14-16中任一项所述的电池装置，其特征在于，所述容料空间还包括一个或多个第二容料空间，所述第二容料空间设于所述流道区域内。
  18. 如权利要求17所述的电池装置，其特征在于，所述冷媒换热流道包括多个并联设置的分流道，所述分流道包括进流支流道、回流支流道和连接于所述进流支流道与所述回流支流道之间的多个子流道，多个所述子流道依次相接，所述子流道沿第一方向延伸且多个所述子流道沿第二方向排列设置，所述第二方向与所述第一方向相交；
    所述进流支流道和/或所述回流支流道与所述第二容料空间相邻设置。
  19. 如权利要求18所述的电池装置，其特征在于，至少两个相邻的所述进流支流道之间设有多个所述第二容料空间；和/或，
    所述进流支流道与所述回流支流道之间设有多个所述第二容料空间。
  20. 如权利要求18或19所述的电池装置，其特征在于，所述冷媒换热流道还包括主进流道、主回流道，所述主进流道与多个所述进流支流道相连通，所述主回流道与多个所述回流支流道相连通；
    所述主进流道和/或所述主回流道与所述第二容料空间相邻设置。
  21. 如权利要求1-20中任一项所述的电池装置，其特征在于，所述第一板体包括本体部和设于所述本体部表面的复合层，所述复合层作为焊料与所述第二板体进行焊接，所述容料空间能够容纳所述焊料。
  22. 如权利要求1-20中任一项所述的电池装置，其特征在于，所述箱体包括箱本体和上盖，所述箱本体的两端分别设有开口，所述上盖和所述冷媒换热部件分别覆盖于所述箱本体两端的所述开口上，所述冷媒换热部件与所述电池单体组件通过导热胶相粘接。
  23. 如权利要求1-22中任一项所述的电池装置，其特征在于，所述冷媒换热流道内的冷媒为相变工质。
  24. 一种冷媒换热部件，其特征在于，所述冷媒换热部件至少包括层叠设置的第一板体和第二板体，所述第一板体和所述第二板体合围成冷媒换热流道，所述第一板体具有焊接部，所述第二板体焊接连接于所述焊接部，所述焊接部内设有容料空间，所述容料空间具有朝向所述第二板体的开口，所述容料空间与所述冷媒换热流道相邻设置以阻挡所述焊料朝向所述冷媒换热流道内流动。
  25. 一种用电装置，其特征在于，包括如权利要求1-23中任一项所述的电池装置，所述电池装置用于提供电能。
PCT/CN2025/078590 2024-04-28 2025-02-21 冷媒换热部件、电池装置及用电装置 Pending WO2025227896A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202580003841.4A CN121620830A (zh) 2024-04-28 2025-02-21 冷媒换热部件、电池装置及用电装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202420907842 2024-04-28
CN202420907842.4 2024-04-28

Publications (1)

Publication Number Publication Date
WO2025227896A1 true WO2025227896A1 (zh) 2025-11-06

Family

ID=97415454

Family Applications (4)

Application Number Title Priority Date Filing Date
PCT/CN2025/078593 Pending WO2025227897A1 (zh) 2024-04-28 2025-02-21 冷媒换热部件、电池装置及用电装置
PCT/CN2025/078554 Pending WO2025227894A1 (zh) 2024-04-28 2025-02-21 电池装置、冷媒换热装置及用电装置
PCT/CN2025/078572 Pending WO2025227895A1 (zh) 2024-04-28 2025-02-21 电池装置、冷媒换热装置及用电装置
PCT/CN2025/078590 Pending WO2025227896A1 (zh) 2024-04-28 2025-02-21 冷媒换热部件、电池装置及用电装置

Family Applications Before (3)

Application Number Title Priority Date Filing Date
PCT/CN2025/078593 Pending WO2025227897A1 (zh) 2024-04-28 2025-02-21 冷媒换热部件、电池装置及用电装置
PCT/CN2025/078554 Pending WO2025227894A1 (zh) 2024-04-28 2025-02-21 电池装置、冷媒换热装置及用电装置
PCT/CN2025/078572 Pending WO2025227895A1 (zh) 2024-04-28 2025-02-21 电池装置、冷媒换热装置及用电装置

Country Status (2)

Country Link
CN (21) CN223771180U (zh)
WO (4) WO2025227897A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN121546224A (zh) * 2026-01-15 2026-02-17 宁德时代新能源科技股份有限公司 电池装置及用电装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109546176A (zh) * 2017-09-22 2019-03-29 丰田自动车株式会社 燃料电池
CN219696555U (zh) * 2023-06-12 2023-09-15 宁德时代新能源科技股份有限公司 热管理部件、电池及用电装置
CN219873741U (zh) * 2023-07-07 2023-10-20 宁德时代新能源科技股份有限公司 热管理部件、电池及用电设备
CN116941107A (zh) * 2022-08-22 2023-10-24 宁德时代新能源科技股份有限公司 电池顶盖、电池及用电装置
CN117039255A (zh) * 2023-08-30 2023-11-10 厦门海辰储能科技股份有限公司 冷却板、电池包及用电设备
CN117219908A (zh) * 2023-09-28 2023-12-12 厦门海辰储能科技股份有限公司 液冷板、储能装置及用电设备
CN117346560A (zh) * 2022-06-28 2024-01-05 广东美的制冷设备有限公司 换热器及空调系统

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9437903B2 (en) * 2012-01-31 2016-09-06 Johnson Controls Technology Company Method for cooling a lithium-ion battery pack
WO2013171885A1 (ja) * 2012-05-17 2013-11-21 日立ビークルエナジー株式会社 電池モジュール
KR101458523B1 (ko) * 2013-05-02 2014-11-07 (주)힉스프로 기액 분리형 판형 열교환기
CN106455388A (zh) * 2016-11-08 2017-02-22 深圳天珑无线科技有限公司 电子设备及电子设备的外壳
CN107039706A (zh) * 2017-05-09 2017-08-11 中国第汽车股份有限公司 动力电池液冷板
FR3115866B1 (fr) * 2020-11-04 2023-02-10 Valeo Systemes Thermiques Dispositif de régulation thermique, notamment de refroidissement pour véhicule automobile
FR3115867B1 (fr) * 2020-11-04 2022-12-30 Valeo Systemes Thermiques Dispositif de régulation thermique, notamment de refroidissement pour véhicule automobile
CN117134016A (zh) * 2022-05-20 2023-11-28 比亚迪股份有限公司 换热板、电池包和车辆
CN217881650U (zh) * 2022-05-25 2022-11-22 北京新能源汽车股份有限公司 液冷板组件和具有其的电池包
CN117352915A (zh) * 2022-06-29 2024-01-05 重庆理工大学 电池模组及电池包
CN217426897U (zh) * 2022-07-27 2022-09-13 豫新汽车热管理科技有限公司 一种低流阻回形流的冲压式直冷板
CN219267747U (zh) * 2022-11-22 2023-06-27 江苏正力新能电池技术有限公司 一种冷却板及电池
CN219066943U (zh) * 2022-12-12 2023-05-23 蜂巢能源科技股份有限公司 电池液冷结构和具有其的电池包
CN220652113U (zh) * 2023-07-31 2024-03-22 江苏涵润汽车电子有限公司 水冷板和电池包
CN219959174U (zh) * 2023-09-20 2023-11-03 豫新汽车热管理科技有限公司 一种分流自定位的低流阻冷板

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109546176A (zh) * 2017-09-22 2019-03-29 丰田自动车株式会社 燃料电池
CN117346560A (zh) * 2022-06-28 2024-01-05 广东美的制冷设备有限公司 换热器及空调系统
CN116941107A (zh) * 2022-08-22 2023-10-24 宁德时代新能源科技股份有限公司 电池顶盖、电池及用电装置
CN219696555U (zh) * 2023-06-12 2023-09-15 宁德时代新能源科技股份有限公司 热管理部件、电池及用电装置
CN219873741U (zh) * 2023-07-07 2023-10-20 宁德时代新能源科技股份有限公司 热管理部件、电池及用电设备
CN117039255A (zh) * 2023-08-30 2023-11-10 厦门海辰储能科技股份有限公司 冷却板、电池包及用电设备
CN117219908A (zh) * 2023-09-28 2023-12-12 厦门海辰储能科技股份有限公司 液冷板、储能装置及用电设备

Also Published As

Publication number Publication date
CN120854738A (zh) 2025-10-28
CN223785196U (zh) 2026-01-09
CN223771182U (zh) 2026-01-06
CN120854739A (zh) 2025-10-28
CN223757568U (zh) 2026-01-02
CN120854737A (zh) 2025-10-28
CN223771181U (zh) 2026-01-06
CN121620830A (zh) 2026-03-06
CN223785197U (zh) 2026-01-09
CN120854736A (zh) 2025-10-28
CN223785195U (zh) 2026-01-09
CN223757567U (zh) 2026-01-02
CN223771183U (zh) 2026-01-06
CN223809158U (zh) 2026-01-16
CN223809157U (zh) 2026-01-16
WO2025227894A1 (zh) 2025-11-06
CN120854735A (zh) 2025-10-28
CN223771180U (zh) 2026-01-06
WO2025227897A1 (zh) 2025-11-06
CN223771184U (zh) 2026-01-06
CN223757566U (zh) 2026-01-02
WO2025227895A1 (zh) 2025-11-06
CN120854734A (zh) 2025-10-28
CN223785194U (zh) 2026-01-09

Similar Documents

Publication Publication Date Title
KR102022590B1 (ko) 배터리 모듈
KR102372348B1 (ko) 개선된 냉각 구조를 갖는 배터리 모듈
EP3567670B1 (en) Battery module
CN110178263B (zh) 具有改进的温度控制性能的电池组
JP7442920B2 (ja) 電池モジュールおよびこれを含む電池パック
JP7418558B2 (ja) 電池モジュールおよびこれを含む電池パック
EP3780253A1 (en) Battery module comprising module housing
JP7447277B2 (ja) 電池パックおよびこれを含むデバイス
JP2024529370A (ja) 電池及び電気機器
JP2023513545A (ja) 電池パックおよびこれを含むデバイス
EP4376160B1 (en) Battery pack and vehicle including the same
KR102930264B1 (ko) 전지팩 및 이를 포함하는 디바이스
JP2024528969A (ja) バッテリーラックおよびこれを含む電力貯蔵装置
KR20170098590A (ko) 카트리지 및 이를 포함하는 배터리 모듈, 배터리 팩
CN221427848U (zh) 电池单体、电池及用电装置
JP7395232B2 (ja) 電池パックおよびこれを含むデバイス
WO2025227896A1 (zh) 冷媒换热部件、电池装置及用电装置
CN110199407B (zh) 包括吸收层和绝缘膜的电池外壳
EP4715983A1 (en) Battery module and battery pack including same
KR102887874B1 (ko) 냉각 장치 및 이를 포함하는 전지 셀 적층체
CN221978111U (zh) 箱体、电池装置以及用电设备
EP4521512B1 (en) Battery system including cooling plate and method of controlling the same
JP7729700B2 (ja) 冷却部材、当該冷却部材を含む電池モジュールおよび電池パック
KR20260062565A (ko) 쿨링 플레이트가 적용된 배터리 모듈 구조
WO2026007510A1 (zh) 电池及用电装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 25797074

Country of ref document: EP

Kind code of ref document: A1