CN223938285U - A new type of external rotor fan - Google Patents

A new type of external rotor fan

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Publication number
CN223938285U
CN223938285U CN202520587907.6U CN202520587907U CN223938285U CN 223938285 U CN223938285 U CN 223938285U CN 202520587907 U CN202520587907 U CN 202520587907U CN 223938285 U CN223938285 U CN 223938285U
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CN
China
Prior art keywords
fixedly connected
fan
external rotor
outer side
rear cover
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CN202520587907.6U
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Chinese (zh)
Inventor
翁卫国
蒋佳卫
刘俊杰
王晓莲
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Shanghai Aeolus Ventilation Equipment Co ltd
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Shanghai Aeolus Ventilation Equipment Co ltd
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Priority to CN202520587907.6U priority Critical patent/CN223938285U/en
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Publication of CN223938285U publication Critical patent/CN223938285U/en
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Abstract

The utility model discloses a novel outer rotor fan which comprises a front cover and a rear cover, wherein an outer rotor motor is arranged between the front cover and the rear cover, a front hood is fixedly connected to the front face of the front cover, a first supporting shaft is fixedly connected to the middle end of the front hood, a rear hood is arranged on the back face of the rear cover, a second supporting shaft is fixedly connected to the middle end of the rear hood, and a fan blade mechanism is arranged on the outer side of the outer rotor motor.

Description

Novel external rotor fan
Technical Field
The utility model relates to the technical field of outer rotor fan equipment, in particular to a novel outer rotor fan.
Background
The outer rotor fan is a fan which adopts an outer rotor motor to directly drive an impeller, the outer rotor fan overturns the structure that a stator is arranged outside and a rotor is arranged inside of a traditional motor, the stator of the motor is arranged in the middle, the rotor is designed outside, and the rotor is directly connected with the impeller of the fan, so that the impeller can be directly driven to rotate when the rotor of the motor rotates, an additional transmission device is not needed, and the structure is fastened more.
The outer rotor fan is driven by the motor to rotate, so that air flow is generated, the rotor is positioned outside the shell, the air flow is directly accelerated and guided by the impeller to form air with certain pressure and flow, so that the purpose of air exhaust or air suction is realized, the number of fan blades of the existing outer rotor fan is usually fixed, the fan blades are difficult to flexibly adjust according to actual use scenes, and the fan blades cannot be conveniently increased or reduced to match corresponding air volume requirements in occasions with different requirements on air volume, such as different seasons and different space loads, so that the fan is difficult to efficiently operate under certain conditions, and the use efficiency is influenced.
Disclosure of utility model
The utility model aims to solve the problems that the number of fan blades of the existing external rotor fan is usually fixed, is difficult to flexibly adjust according to actual use situations, and can not be increased or reduced to match corresponding ventilation requirements conveniently in occasions with different requirements on ventilation, such as different seasons and different space loads, so that the fan is difficult to operate efficiently under certain conditions, and the service efficiency is affected.
The novel outer rotor fan comprises a front cover and a rear cover, an outer rotor motor is arranged between the front cover and the rear cover, a front cover is fixedly connected to the front surface of the front cover, a first supporting shaft is fixedly connected to the middle end of the front cover, a rear cover is arranged on the back surface of the rear cover, a second supporting shaft is fixedly connected to the middle end of the rear cover, and a fan blade mechanism is arranged on the outer side of the outer rotor motor.
As a still further scheme of the utility model, one end of the outer side of the front machine cover is fixedly connected with a first connecting lug, and one end of the outer side of the rear machine cover is fixedly connected with a second connecting lug.
As a still further scheme of the utility model, the other end of the outer side of the front machine cover is fixedly connected with a mounting base, and the other end of the outer side of the rear machine cover is also provided with a mounting base structure.
The fan blade mechanism comprises a first fixed ring, a second fixed ring and a supporting rod, wherein the first fixed ring is fixedly connected to one end of a rotor shell of an outer rotor motor, the second fixed ring is fixedly connected to the other end of the rotor shell of the outer rotor motor, the supporting rod is arranged between the first fixed ring and the second fixed ring, a limiting piece and a fan blade are fixedly connected to one end of the outer side of the supporting rod, the fan blade is fixedly connected to the middle end of the outer side of the supporting rod, a through hole, a limiting groove and a bolt are formed in the through hole, the through hole is formed in one end of the back of the second fixed ring, the limiting groove is formed in one end of the front of the second fixed ring, and the bolt is arranged at the other end of the back of the second fixed ring.
As a still further scheme of the utility model, the front machine cover and the rear machine cover are movably inserted, and the first support shaft and the second support shaft are movably inserted with the outer rotor motor.
As a still further scheme of the utility model, the back of the fixed ring is also provided with a through hole and a bolt structure, the front of the fixed ring is also provided with a limit groove structure, the through hole is communicated with the limit groove, and the bolt is in threaded connection with the support rod.
As a still further proposal of the utility model, the number of the supporting rods, the fan blades, the through holes, the limit grooves and the bolts are all provided with a plurality of groups, the outer side of each group of the supporting rods is provided with two groups of limit pieces, and the limit pieces are matched with the limit grooves.
Compared with the prior art, the utility model has the beneficial effects that:
The support rod is arranged between the first fixed ring and the second fixed ring, the limit pieces at the two ends are inserted into the corresponding limit grooves to be primarily fixed, the bolts are used for thoroughly fixing, the fan blades are firmly fixed on the rotor shell of the outer rotor motor, so that the fan blades can be conveniently replaced, the number of the support rod and the fan blades can be flexibly increased and decreased according to actual requirements to adjust the ventilation quantity, if the number is increased, the number is reduced if the number is reduced, the fan blades can be adapted to different occasion requirements, the fan blades can be detached, the maintenance cost and time of the fan are reduced, the first support shaft and the second support shaft are connected with the outer rotor motor, and the front cover and the rear cover are movably inserted and combined, the fan is convenient to assemble and disassemble, maintenance is facilitated, the first connecting lug and the second connecting lug can be thoroughly fixed by using the fasteners, and the mounting base also provides more modes and position choices for the fan installation of different installation environments.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the front cover of the present utility model;
FIG. 3 is a schematic view of the rear cover structure of the present utility model;
FIG. 4 is a schematic view of the structure of the outer rotor motor according to the present utility model;
Fig. 5 is a schematic structural view of a fan blade mechanism according to the present utility model.
The motor comprises a front cover, a rear cover, an outer rotor motor, a front hood, a supporting shaft I, a rear hood, a supporting shaft II, a fan blade mechanism, 801, a fixing ring I, 802, a fixing ring II, 803, a supporting rod, 804, a limiting piece, 805, fan blades, 806, a through hole, 807, a limiting groove, 808, bolts, 9, a connecting ear block I, 10, a connecting ear block II, 11 and a mounting base.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediary, or communicate between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.
Referring to fig. 1 to 5, in the embodiment of the utility model, a novel outer rotor fan comprises a front cover 1 and a rear cover 2, wherein the front cover 1 and the rear cover 2 are combined into a shell of the fan, the inner structure is protected, and an outer rotor motor 3 is arranged between the front cover 1 and the rear cover 2 and is used as a power source of the fan.
The front hood 1 is fixedly connected with a front hood 4, the middle end of the front hood 4 is fixedly connected with a first supporting shaft 5, the back of the rear hood 2 is provided with a rear hood 6, the front hood 4 and the rear hood 6 mainly play roles of heat dissipation, air exhaust and ventilation, the middle end of the rear hood 6 is fixedly connected with a second supporting shaft 7, and the first supporting shaft 5 and the second supporting shaft 7 play a role in supporting the outer rotor motor 3 to a certain extent.
The outer side of the outer rotor motor 3 is provided with a fan blade mechanism 8 which can replace the blades, the front cover 1 and the rear cover 2 are movably inserted, and the first support shaft 5 and the second support shaft 7 are movably inserted with the outer rotor motor 3.
Referring to fig. 1 to 3, one end of the outer side of the front cover 1 is fixedly connected with a first connecting lug 9, one end of the outer side of the rear cover 2 is fixedly connected with a second connecting lug 10, the other end of the outer side of the front cover 1 is fixedly connected with a mounting base 11, the other end of the outer side of the rear cover 2 is also provided with a mounting base 11 structure, the front cover 1 and the rear cover 2 can be thoroughly fixed by using the first connecting lug 9 and the second connecting lug 10 through fasteners, and the design of the mounting base 11 also provides more modes and position selection for the mounting of a fan and can adapt to different mounting environments and requirements.
Referring to fig. 1, 4 and 5, the fan blade mechanism 8 includes a first fixing ring 801, a second fixing ring 802 and a supporting rod 803, the first fixing ring 801 is fixedly connected to one end of the rotor housing of the outer rotor motor 3, the second fixing ring 802 is fixedly connected to the other end of the rotor housing of the outer rotor motor 3, and the supporting rod 803 is disposed between the first fixing ring 801 and the second fixing ring 802;
The limiting piece 804 and the fan blade 805, wherein the limiting piece 804 is fixedly connected to one end of the outer side of the supporting rod 803, and the fan blade 805 is fixedly connected to the middle end of the outer side of the supporting rod 803;
The through hole 806, the limit groove 807 and the bolt 808, the through hole 806 is arranged at one end of the back of the second fixed ring 802, the limit groove 807 is arranged at one end of the front of the second fixed ring 802, the bolt 808 is arranged at the other end of the back of the second fixed ring 802, the back of the first fixed ring 801 is also provided with a structure of the through hole 806 and the bolt 808, the front of the first fixed ring 801 is also provided with a structure of the limit groove 807, the through hole 806 and the limit groove 807 are communicated, the bolt 808 is connected with the supporting rod 803 through threads, the number of the supporting rod 803, the fan blade 805, the through hole 806, the limit groove 807 and the bolt 808 are all provided with a plurality of groups, two groups of limiting pieces 804 are arranged on the outer side of each group of supporting rods 803, the limiting pieces 804 are matched with the limiting grooves 807, the supporting rods 803 are arranged between the first fixing ring 801 and the second fixing ring 802, the limiting pieces 804 at the two ends of the supporting rods 803 are respectively inserted into the limiting grooves 807 on the first fixing ring 801 and the second fixing ring 802, the supporting rods 803 are preliminarily fixed, and the two ends of the supporting rods 803 are respectively and thoroughly fixed with the first fixing ring 801 and the second fixing ring 802 by bolts 808, so that the fan blades 805 can be firmly fixed on the rotor housing of the outer rotor motor 3, and the fan blades 805 are convenient to replace.
When the fan is used, the supporting rods 803 are arranged between the first fixing ring 801 and the second fixing ring 802, the limiting pieces 804 at the two ends of the supporting rods 803 are respectively inserted into the limiting grooves 807 on the first fixing ring 801 and the second fixing ring 802, the supporting rods 803 are preliminarily fixed, the two ends of the supporting rods 803 are respectively and thoroughly fixed with the first fixing ring 801 and the second fixing ring 802 by the bolts 808, so that the fan blades 805 are firmly fixed on the rotor shell of the outer rotor motor 3, the fan blades 805 are convenient to replace, the number of the supporting rods 803 and the number of the fan blades 805 can be flexibly increased or reduced according to actual use requirements, and the number of the supporting rods and the fan blades can be increased when a larger ventilation amount is needed, and the number of the supporting rods and the fan blades can be reduced when a smaller ventilation amount is needed, so that the fan can adapt to different use occasions and requirements, and the detachable design of the fan blades 805 enables maintenance cost and time of the fan to be more convenient and rapid; through the connected relation of back shaft one 5 and back shaft two 7 and external rotor motor 3 to and preceding machine lid 1 and back machine lid 2 are in the same place through the mode combination of activity grafting, and this kind of outside equipment of fan and dismantlement of being convenient for, make things convenient for subsequent maintenance and maintenance work, through connecting ear piece one 9 and connecting ear piece two 10, available fastener thoroughly fixes preceding machine lid 1 and back machine lid 2, and the design of mounting base 11 also provides more modes and position selection for the installation of fan, can adapt to different installation environment and demand.
The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1.一种新型外转子风机，其特征在于，包括：前机盖（1）和后机盖（2），所述前机盖（1）和后机盖（2）之间设有外转子电机（3），所述前机盖（1）正面固定连接有前机罩（4），所述前机罩（4）中端固定连接有支撑轴一（5），所述后机盖（2）背面设有后机罩（6），所述后机罩（6）中端固定连接有支撑轴二（7），所述外转子电机（3）外侧设有扇叶机构（8）；1. A novel external rotor fan, characterized in that it comprises: a front cover (1) and a rear cover (2), an external rotor motor (3) is provided between the front cover (1) and the rear cover (2), a front cover (4) is fixedly connected to the front of the front cover (1), a support shaft (5) is fixedly connected to the middle of the front cover (4), a rear cover (6) is provided on the back of the rear cover (2), a support shaft (7) is fixedly connected to the middle of the rear cover (6), and a fan blade mechanism (8) is provided on the outside of the external rotor motor (3); 所述扇叶机构（8）包括：The fan blade mechanism (8) includes: 固定环一（801）、固定环二（802）和支撑杆（803），所述固定环一（801）固定连接于外转子电机（3）转子外壳一端，所述固定环二（802）固定连接于外转子电机（3）转子外壳另一端，所述支撑杆（803）位于所述固定环一（801）和固定环二（802）之间设置；Fixed ring one (801), fixed ring two (802) and support rod (803), the fixed ring one (801) is fixedly connected to one end of the rotor housing of the external rotor motor (3), the fixed ring two (802) is fixedly connected to the other end of the rotor housing of the external rotor motor (3), and the support rod (803) is located between the fixed ring one (801) and the fixed ring two (802); 限位片（804）和扇叶（805），所述限位片（804）固定连接于支撑杆（803）外侧一端，所述扇叶（805）固定连接于支撑杆（803）外侧中端；The limiting piece (804) and the fan blade (805) are fixedly connected to one end of the outer side of the support rod (803), and the fan blade (805) is fixedly connected to the middle end of the outer side of the support rod (803). 贯穿孔（806）、限位槽（807）和螺栓（808），所述贯穿孔（806），所述贯穿孔（806）开设于固定环二（802）背面一端，所述限位槽（807）开设于固定环二（802）正面一端，所述螺栓（808）设置于固定环二（802）背面另一端。Through hole (806), limiting groove (807) and bolt (808), the through hole (806) is opened at one end of the back of the second fixing ring (802), the limiting groove (807) is opened at one end of the front of the second fixing ring (802), and the bolt (808) is set at the other end of the back of the second fixing ring (802). 2.根据权利要求1所述的一种新型外转子风机，其特征在于，所述前机盖（1）外侧一端固定连接有连接耳块一（9），所述后机盖（2）外侧一端固定连接有连接耳块二（10）。2. A novel external rotor fan according to claim 1, characterized in that a connecting lug 1 (9) is fixedly connected to one end of the outer side of the front cover (1), and a connecting lug 2 (10) is fixedly connected to one end of the outer side of the rear cover (2). 3.根据权利要求1所述的一种新型外转子风机，其特征在于，所述前机盖（1）外侧另一端固定连接有安装基座（11），所述后机盖（2）外侧另一端同样设有安装基座（11）结构。3. A novel external rotor fan according to claim 1, characterized in that a mounting base (11) is fixedly connected to the other end of the outer side of the front cover (1), and a mounting base (11) structure is also provided on the other end of the outer side of the rear cover (2). 4.根据权利要求1所述的一种新型外转子风机，其特征在于，所述前机盖（1）和所述后机盖（2）活动插接，所述支撑轴一（5）和所述支撑轴二（7）皆与所述外转子电机（3）活动插接。4. A novel external rotor fan according to claim 1, characterized in that the front cover (1) and the rear cover (2) are movably connected, and the first support shaft (5) and the second support shaft (7) are both movably connected to the external rotor motor (3). 5.根据权利要求1所述的一种新型外转子风机，其特征在于，所述固定环一（801）背面同样设有贯穿孔（806）和螺栓（808）结构，所述固定环一（801）正面同样设有限位槽（807）结构，所述贯穿孔（806）和所述限位槽（807）之间贯通连，所述螺栓（808）和所述支撑杆（803）螺纹连接。5. A novel external rotor fan according to claim 1, characterized in that the back of the fixing ring (801) is also provided with a through hole (806) and a bolt (808) structure, the front of the fixing ring (801) is also provided with a limiting groove (807) structure, the through hole (806) and the limiting groove (807) are connected through each other, and the bolt (808) and the support rod (803) are threadedly connected. 6.根据权利要求1所述的一种新型外转子风机，其特征在于，所述支撑杆（803）、所述扇叶（805）、所述贯穿孔（806）、所述限位槽（807）和所述螺栓（808）数量皆设有多组，每一组所述支撑杆（803）的外侧皆设有两组所述限位片（804），所述限位片（804）与所述限位槽（807）相适配。6. A novel external rotor fan according to claim 1, characterized in that the number of the support rod (803), the fan blade (805), the through hole (806), the limiting groove (807) and the bolt (808) are all provided in multiple sets, and two sets of the limiting plates (804) are provided on the outer side of each set of the support rod (803), and the limiting plates (804) are adapted to the limiting groove (807).
CN202520587907.6U 2025-03-31 2025-03-31 A new type of external rotor fan Active CN223938285U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202520587907.6U CN223938285U (en) 2025-03-31 2025-03-31 A new type of external rotor fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202520587907.6U CN223938285U (en) 2025-03-31 2025-03-31 A new type of external rotor fan

Publications (1)

Publication Number Publication Date
CN223938285U true CN223938285U (en) 2026-02-24

Family

ID=98812448

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202520587907.6U Active CN223938285U (en) 2025-03-31 2025-03-31 A new type of external rotor fan

Country Status (1)

Country Link
CN (1) CN223938285U (en)

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