WO2023029611A1 - Aerosol generating product and aerosol generating device - Google Patents

Abstract

The embodiments of the present application belong to the technical field of aerosol generating products, and relate to an aerosol generating product and an aerosol generating device. The aerosol generating product comprises a heating element and an aerosol generating substrate, wherein the heating element is provided with a gas heating channel, a gas inlet and an exhaust hole; the gas heating channel is located in an inner cavity of the heating element, and the gas heating channel is in communication with the gas inlet and the exhaust hole; and the aerosol generating substrate is in contact with an outer side of the heating element and is located at a gas output end of a channel of the exhaust hole, such that air can enter the aerosol generating substrate through the exhaust hole after the air enters the gas heating channel. In the present application, after the air is heated by the heating element, the hot air is discharged into the aerosol generating substrate, so as to heat the aerosol generating substrate in a dual mode of airflow heating by the hot air and direct contact heating by the heating element, such that each part of the aerosol generating substrate can be heated and carbonized, thereby ensuring that the aerosol generating substrate can be sufficiently heated.

Description

A kind of aerosol generating product and aerosol generating device technical field

The present application relates to the technical field of aerosol generating products, and more specifically, to an aerosol generating product and an aerosol generating device.

Background technique

The aerosol-generating product is a product that heats the aerosol-generating base material so that the aerosol-generating base material generates an aerosol and then discharges it for inhalation by the user.

In the prior art, two heating methods are generally used, one is to use a resistance heating element capable of heating independently to contact the aerosol-generating substrate for heating, and the other is to use an electromagnetic heating element to heat the aerosol under the action of a magnetic induction coil. The sol-forming substrate is subjected to contact heating. However, these two heating methods are limited by the area of the heating element and the contact area between the heating element and the aerosol generating substrate, so that the aerosol generating substrate cannot be fully heated, especially the part far away from the heating element cannot fully absorb The heat generates aerosol, which leads to insufficient carbonization of the aerosol-generating substrate in this part.

Contents of the invention

The technical problem to be solved by the embodiments of the present application is that the aerosol generating substrate in the prior art aerosol products cannot be heated sufficiently.

In order to solve the above technical problems, the embodiment of the present application provides an aerosol generating product, which adopts the following technical solution:

The aerosol generating product includes a heating element and an aerosol generating substrate, the heating element is provided with a gas heating channel, an air inlet and an exhaust hole, the gas heating channel is located in the inner cavity of the heating element, the The gas heating channel communicates with the air inlet and the exhaust hole, and the aerosol generating substrate is in contact with the outside of the heating element, and is located on the outlet end of the exhaust hole, allowing air to enter the After the gas is heated through the channel, it can enter the interior of the aerosol generating substrate through the vent hole.

Further, the heating element includes a heating pipe, the inner cavity of the heating pipe is the gas heating channel, the end of the heating pipe away from the air inlet is sealed, and the exhaust hole is opened in the The side wall of the heating pipe, the aerosol generating substrate is on the outside of the heating pipe and is in contact with the heating pipe.

Further, the heating element also includes a preheating pipe, the preheating pipe is connected in the inner cavity of the heating pipe, the gas heating channel includes a first channel and a second channel, and the first channel is located at the The inner cavity of the preheating pipe, the second channel is located in the space between the outer wall of the preheating pipe and the inner wall of the heating pipe, and the air inlet is arranged at the end of the preheating pipe The end of the heating pipe and the preheating pipe away from the air inlet is sealed, the side wall of the preheating pipe is provided with a ventilating structure, and the first passage and the second passage pass through the ventilating Structural connectivity.

Further, the aerosol-generating product further includes a breathable adsorbent, which is connected to the heating element and located at the bottom of the heating element.

Further, the aerosol-generating product further includes a filter connected to the aerosol-generating substrate, and the filter is located downstream of the aerosol-generating substrate.

Further, the aerosol generating product also includes an aerosol cooling element, the two ends of the aerosol cooling element are respectively connected with the aerosol generating substrate and the filter, and the aerosol cooling element is located on the air The sol-forming substrate is downstream and upstream of the filter.

Further, the end of the aerosol generating substrate close to the air inlet is sealed.

Further, the heating element and the aerosol generating substrate are arranged coaxially.

Further, the exhaust holes are one or more combinations of circular holes, oval holes, triangular holes, polygonal holes and special-shaped holes.

Further, the exhaust holes are arranged on the heating element along a first direction, and the diameters of the exhaust holes arranged along the first direction are different, and the first direction is parallel to the air flow in the gas heating channel. direction of flow in .

Further, the opening diameter of the air inlet end of the exhaust hole is smaller than the opening diameter of the air outlet end of the air exhaust hole.

Further, the channel of the exhaust hole is arranged obliquely, and the channel of the exhaust hole is inclined to the second direction, and the second direction is the direction in which the gas is discharged from the inside of the aerosol generating substrate .

In order to solve the above technical problems, the embodiment of the present application also provides an aerosol generating device, which adopts the following technical solution:

The aerosol generating device includes a housing, an induction coil, a power supply, a control circuit board, and an aerosol generating product as described in any of the above schemes;

The induction coil, the power supply and the control circuit board are all installed inside the casing, and the part of the aerosol generating product with the heating element can be plugged in and removed from the inside of the casing, and the power supply and control Circuit board connection, the control circuit board is connected to the induction coil;

Wherein, when the sol generating product is inserted into the housing, the induction coil is arranged around the outside of the heating element of the aerosol generating product, the heating element includes a heating tube, and the heating tube is made of metal material.

Further, the aerosol generating device further includes a bracket, the bracket is installed inside the casing, and the bracket is provided with a slot, the shape of the slot is consistent with the shape of the aerosol generating product Suitably, the bracket is used to carry the aerosol-generating article.

Further, the aerosol generating device further includes a magnetic isolation plate, the magnetic isolation plate is connected to the housing, and the magnetic isolation plate is arranged between the induction coil and the housing.

Further, the heating element includes a heating pipe, the inner cavity of the heating pipe is the gas heating channel, the end of the heating pipe away from the air inlet is sealed, and the exhaust hole is opened in the The side wall of the heating pipe, the aerosol generating substrate is on the outside of the heating pipe and is in contact with the heating pipe.

Further, the heating element also includes a preheating pipe, the preheating pipe is connected in the inner cavity of the heating pipe, the gas heating channel includes a first channel and a second channel, and the first channel is located at the The inner cavity of the preheating pipe, the second channel is located in the space between the outer wall of the preheating pipe and the inner wall of the heating pipe, and the air inlet is arranged at the end of the preheating pipe The end of the heating pipe and the preheating pipe away from the air inlet is sealed, the side wall of the preheating pipe is provided with a ventilating structure, and the first passage and the second passage pass through the ventilating Structural connectivity.

Further, the aerosol-generating product further includes a breathable adsorbent, which is connected to the heating element and located at the bottom of the heating element.

Further, the aerosol-generating product further includes a filter connected to the aerosol-generating substrate, and the filter is located downstream of the aerosol-generating substrate.

Further, the aerosol generating product also includes an aerosol cooling element, the two ends of the aerosol cooling element are respectively connected with the aerosol generating substrate and the filter, and the aerosol cooling element is located on the air The sol-forming substrate is downstream and upstream of the filter.

Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

In this application, by setting the heating elements with gas heating channels, air inlets, and exhaust holes, the heating elements can heat the aerosol-generating substrate while heating the air, and then heat the hot air Exhaust to the interior of the aerosol-generating substrate. The inside of the aerosol-generating product can simultaneously carry out two heating modes: the solid direct contact heating of the heating element to the aerosol-generating substrate and the air-flow heating of the hot air to the aerosol-generating substrate. The area of the aerosol-generating substrate in contact can also be uniformly heated under the action of the hot air flow, so that the heating of the aerosol-generating substrate can be more sufficient and more uniform.

Description of drawings

In order to illustrate the solution of the present application more clearly, a brief introduction will be given below to the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present application. As far as people are concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

Fig. 1 is the cross-sectional view of the aerosol generating product described in the first embodiment provided by the present invention, in which the arrow indicates the flow direction of the air;

Fig. 2 is a three-dimensional structural view of the heating pipe in the aerosol generating product shown in Fig. 1, which shows the first embodiment of the heating pipe, and the arrows in the figure indicate the flow direction of the air;

Fig. 3 is a three-dimensional structural diagram of a second embodiment of the heat pipe provided by the present invention;

Fig. 4 is a three-dimensional structure view of a third embodiment of the heat pipe provided by the present invention;

Fig. 5 is a cross-sectional view of the aerosol-generating product according to the second embodiment of the present invention, and the arrows in the figure indicate the flow direction of the air;

Fig. 6 is a cross-sectional view of the aerosol generating device according to an embodiment of the present invention, and the arrows in the figure indicate the flow direction of the air.

Reference signs:

100. Aerosol generating product; 110. Heating pipe; 111. Gas heating channel; 1111. First channel; 1112. Second channel; 112. Air inlet; 113. Vent; 120. Aerosol generating substrate; 130. Preheating tube; 131. Ventilation structure; 140. Ventilation adsorption member; 150. Filter tip; 160. Aerosol cooling element; 170. First sealing member; 180. Second sealing member; 190. Tubular member;

200, shell; 300, induction coil; 400, bracket; 500, magnetic isolation plate; 600, battery; 700, control circuit board; 800, charging circuit board; 900, air intake channel.

Detailed ways

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the application; the terms used herein in the description of the application are only for the purpose of describing specific embodiments , is not intended to limit the present application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and the description of the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the description and claims of the present application or the above drawings are used to distinguish different objects, rather than to describe a specific order.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiment of the present application provides an aerosol generating product 100, refer to Fig. 1 to Fig. 5, wherein Fig. 1 shows the first embodiment of the aerosol generating product provided by the present invention; Fig. 2 shows the heat pipe provided by the present invention Fig. 3 is the second embodiment of the heat pipe provided by the present invention; Fig. 4 is the third embodiment of the heat pipe provided by the present invention; Fig. 5 is the aerosol generating product provided by the present invention The second embodiment; Figure 6 is an embodiment of the aerosol generating device provided by the present invention.

The aerosol generating product 100 includes a heating element and an aerosol generating substrate 120, the heating element is provided with a gas heating channel 111, an air inlet 112 and an exhaust hole 113, the gas heating channel 111 is located in the inner cavity of the heating element, and the gas heating channel 111 communicates with the air inlet 112 and the exhaust hole 113, and the aerosol generating substrate 120 is in contact with the outside of the heating element, and is located on the air outlet end of the exhaust hole 113, so that the air can be exhausted after entering the gas heating channel 111. The pores 113 penetrate into the interior of the aerosol substrate.

It can be understood that the working principle of the aerosol generating product 100 is as follows:

After the air is sucked into the aerosol generating product 100, it enters the gas heating channel 111 through the air inlet 112 of the heating element, and the heating element generates heat. On the one hand, the aerosol generating substrate 120 in direct contact with the heating element is heated. On the one hand, the air entering the gas heating channel 111 is heated, and the heated air enters the inside of the aerosol generating substrate 120 from the exhaust hole 113, so that the hot air can heat the aerosol generating substrate 120 substrate, thereby Two heating modes of direct contact heating of the aerosol-generating substrate by the heating element and air-flow heating of the heat of the aerosol-generating substrate by the hot air are realized simultaneously inside the aerosol-generating article 100 . With the help of the strong flow and diffusion properties of the gas, hot air can fully soak the aerosol-generating substrate 120 after entering the interior of the aerosol-generating substrate 120, so as to expand the heating range of the aerosol-generating substrate 120, thereby avoiding aerosol generation. Insufficient and uneven heating caused by uneven heating of the substrate 120 .

In summary, compared with the prior art, the aerosol generating product 100 has at least the following technical effects:

In this application, a heating element with a gas heating channel 111, an air inlet 112, and an exhaust hole 113 is provided, so that the heating element can heat the aerosol generating substrate 120 by solid contact, and after heating the air, The hot air is then exhausted into the interior of the aerosol-generating substrate 120 . The interior of the aerosol-generating product can simultaneously carry out the two heating modes of the solid direct contact heating of the aerosol-generating substrate 120 by the heating element and the air-flow heating of the aerosol-generating substrate 120 by hot air, so that even if there is no heat generation The area of the aerosol-generating substrate in direct contact with the components can also be uniformly heated under the action of the hot air flow, so that the heating of the aerosol-generating substrate 120 can be more sufficient and more uniform.

Referring to Fig. 1 to Fig. 2, Fig. 1 to Fig. 2 show the first embodiment provided by the present invention. In this embodiment, the heating element includes a heating tube 110, the inner cavity of the heating tube 110 is a gas heating channel 111, the end of the heating tube 110 away from the air inlet 112 is sealed, and the exhaust hole 113 is opened on the side wall of the heating tube 110 , the aerosol generating substrate 120 is outside the heating pipe 110 and in contact with the heating pipe 110 .

It should be noted that the shape of the aerosol generating product 100 provided in this embodiment is a cylindrical structure. Combined with the shape of the aerosol-generating product 100, this embodiment adopts a cylindrical heating tube 110, which can ensure that the heating tube 110 occupies a small space and has a large contact area with the aerosol-generating substrate, and the gas heating The channel 111 is arranged along the inner cavity of the heating pipe 110 , so that the gas heating channel 111 can achieve a longer channel path in a limited space, thereby ensuring that the air can be fully heated in the gas heating channel 111 . The cylindrical heating tube 110 can make the tube wall heat uniformly under the surround of the ring-shaped magnetic induction coil, and can also have a larger contact area with the aerosol generating substrate 120 to increase the rate of aerosol generation.

In this application, the end of the heat pipe 110 away from the air inlet 112 is sealed to prevent the air from continuing to flow along the length direction of the gas heating channel 111. The sealed end of the gas heating channel 111 is used to change the original flow direction of the gas, so that the hot air It can only be exhausted from the exhaust hole 113 to ensure that the hot air can enter the aerosol-generating substrate 120 .

In this embodiment, the end of the gas heating channel 111 is provided with a first sealing member 170, the heating pipe 110 is provided with openings at both ends, the opening at the first end of the heating pipe 110 is an air inlet 112, and the first sealing member 170 is arranged at The opening of the second end of the heat pipe 110 is attached to the heat pipe 110 so as to block the opening of one end of the heat pipe 110 .

In some other embodiments, it is also possible to omit the provision of the first sealing member 170 by providing an integral heat pipe 110 with one end open and the other end sealed.

In other embodiments, the heating element can also be designed with other shapes of heating structures according to different product requirements.

In this embodiment, the tube body of the heating tube 110 is made of metal material. The heating pipe 110 is made of metal material, so that when the heating element is located in the electromagnetic induction area of the induction coil, the heating pipe 110 can receive the power transmitted by the induction coil, and generate heat under the action of electromagnetic induction, so as to generate heat for the aerosol-generating substrate 120 and The air is heated.

In some other embodiments, in order to adapt to the heating methods of different products, the heat pipe 110 can also be composed of a pipe body made of ceramics or other materials with high thermal conductivity and a heating wire, and the heating wire is attached to the inner wall of the pipe body or Embedded inside the pipe body. After the electric heating wire is energized, the ceramic tube body is heated by the electric heating wire, thereby realizing self-heating of the heating pipe 110 .

In this embodiment, the aerosol generating product 100 further includes a breathable adsorbent 140, which is connected to the heating element and located at the bottom of the heating element. Wherein, the air-permeable adsorbent 140 has high air permeability, and the air-permeable adsorbent 140 is positioned at the upstream of the heating element, so that the air can be filtered through the air-permeable adsorbent 140 before entering the heat-generating element. The air-permeable adsorbent 140 is arranged at the bottom of the heating element, and can also absorb tar and carbide flowing out from the heating element, so as to reduce the overflow of the residue formed after the aerosol-generating substrate is heated.

In this embodiment, the air-permeable adsorbent 140 is made of cotton fiber material. Certainly, in some other embodiments, the air-permeable adsorption member 140 can also be made of other materials with high air permeability, high heat resistance and adsorption capacity.

In this embodiment, the aerosol-generating article 100 further includes a filter 150 located downstream of the aerosol-generating substrate 120 . It should be noted that the downstream of the aerosol generating substrate 120 refers to the downstream section in the discharge direction of the aerosol. Specifically, the aerosol formed by heating the aerosol-generating substrate is discharged from the area where the aerosol-generating substrate is located, and then enters the area where the filter 150 is located, and the aerosol passes through the filter 150 and then is discharged to the user for inhalation.

In this embodiment, the filter 150 is formed of cellulose acetate.

In this embodiment, the aerosol generating product 100 also includes an aerosol cooling element 160, the two ends of the aerosol cooling element 160 are respectively connected to the aerosol generating substrate 120 and the filter 150, and the aerosol cooling element 160 is located on the aerosol generating substrate 120 and upstream of the filter 150.

It should be noted that the aerosol cooling element 160 is located downstream of the aerosol generating substrate 120 and upstream of the filter 150, which means that after the aerosol is discharged from the area where the aerosol generating substrate 120 is located, it passes through the aerosol cooling element 160 sequentially. and filter 150 and then discharged.

In this embodiment, the aerosol cooling element 160 is attached to the top of the aerosol generating substrate 120 and attached to the bottom of the filter 150 . The aerosol cooling element 160 is formed from a pleated, gathered polymer sheet. The aerosol cooling element 160 includes a plurality of longitudinally extending channels and a plurality of apertures in cross-section, the apertures communicating with the channels. The aerosol cooling element 160 consumes the heat of the aerosol passing through the aerosol cooling element 160 through a phase change when heated, thereby reducing the temperature of the aerosol.

In some embodiments, the aerosol cooling element 160 may be selected from sheets consisting of metal foils, polymer sheets, and substantially non-porous paper or cardboard. The aerosol cooling element 160 may also include a sheet material selected from any one of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil.

In this embodiment, the end of the aerosol generating substrate 120 close to the air inlet 112 is sealed. Specifically, the end of the aerosol-generating substrate 120 close to the air inlet 112 is connected with a second sealing member 180, and the second sealing member 180 is arranged around the outer periphery of the air inlet 112 to prevent outside air from passing through the aerosol-generating substrate 120. The end part enters the aerosol generating substrate 120 to ensure that the air can first enter the gas heating channel 111 from the air inlet 112, and then enter the aerosol generating substrate 120 from the gas heating channel 111, so as to avoid air entering the aerosol first After the aerosol is formed from the generating substrate 120, the aerosol enters the gas heating channel 111 and is reheated to cause the aerosol to become bitter, thereby ensuring the taste of the aerosol.

In this embodiment, the heating element and the aerosol generating substrate 120 are arranged coaxially. The heating element arranged coaxially with the aerosol generating substrate 120 makes the heating element centrally arranged in the aerosol generating substrate 120 to ensure that the aerosol generating substrate 120 is evenly heated.

In this embodiment, the aerosol generating product 100 further includes a tubular member 190, the heating element and the aerosol generating substrate 120 are arranged inside the tubular member 190, the aerosol generating substrate 120 is located between the heating element and the tubular member 190, And in contact with the heating element.

Further, the air-permeable adsorbent 140 is disposed inside the tubular member 190 and located upstream of the aerosol-generating substrate 120 . Both the aerosol cooling element 160 and the filter 150 are disposed inside the tubular member 190 and in turn downstream of the aerosol generating substrate 120 . The first seal is disposed inside the tubular member 190 and sandwiched between the aerosol-generating substrate 120 and the breathable sorbent 140 . The tubular member 190 is used to wrap the heating element, the aerosol generating substrate 120, the breathable adsorbent 140, the aerosol cooling element 160 and the filter tip 150, and the heating element, the aerosol generating substrate 120, the breathable adsorbing element 140, and the aerosol cooling element 160 and filter 150 are assembled into an aerosol-generating article 100 in the form of a stick.

In some embodiments, the tubular member 190 may be made of paper, or other insulating, non-magnetic and high-temperature-resistant materials.

In this embodiment, referring to FIG. 2 , the exhaust hole 113 is a circular hole. In other embodiments, the exhaust hole 113 can also be one or more of circular holes, oval holes (as shown in Figure 3), triangular holes, polygonal holes and special-shaped holes (as shown in Figure 4) composition. It should be noted that a plurality of exhaust holes 113 are provided on the side wall of the heating pipe 110 to ensure that the hot air can be discharged into the aerosol generating substrate 120 in time, wherein the plurality of exhaust holes 113 can be unified into a circular shape Holes, oval holes, triangular holes, polygonal holes and heterogeneous holes, and exhaust holes 113 of different shapes can also be combined on one heat pipe 110. The shape of the exhaust hole 113 mentioned above specifically refers to the cross-sectional shape of the exhaust hole 113 .

In this embodiment, the exhaust holes 113 are arranged on the heating element along a first direction, the diameters of the exhaust holes 113 arranged along the first direction are different, and the first direction is parallel to the flow direction of air in the gas heating channel 111 . In this embodiment, the gas flow flows longitudinally in the gas heating channel 111 , so the exhaust holes 113 are arranged longitudinally on the heating element. By setting the vent holes 113 to have different hole diameters in the longitudinal direction, the exhaust rate of the heating element at different positions in the longitudinal direction can be realized, thereby ensuring that the gas can be discharged from different positions in the longitudinal direction to the aerosol generating substrate 120 in. For example, the diameter of the exhaust hole 113 can gradually increase from bottom to top, that is, the diameter of the exhaust hole 113 located at the upstream section of the heat generating element is smaller than the aperture diameter of the exhaust hole 113 located at the downstream section of the heat generating element. After the air enters the gas heating channel 111 of the heating element, a part of the air will be discharged from the exhaust hole 113 located in the upstream section of the heating element, and the other part of the air will continue to flow along the gas heating channel 111 and flow to the downstream of the heating element because it cannot be discharged in time section, and then discharged from the exhaust hole 113 of the downstream section of the heating element.

In this embodiment, the exhaust holes 113 are unevenly arranged in the longitudinal direction. Specifically, the number of exhaust holes 113 near the bottom of the heating element can be more than the number of exhaust holes 113 away from the bottom of the heating element, so that more hot air can enter the bottom of the aerosol generating substrate from the area near the bottom of the heating element area.

In this embodiment, the opening diameter of the inlet end of the exhaust hole 113 is smaller than the opening diameter of the outlet end of the exhaust hole 113 . In this embodiment, the channel diameter of the exhaust hole 113 can gradually increase along the flow direction of the gas in the exhaust hole 113 to form a trumpet-shaped channel, so that hot air can enter the aerosol generation from the gas heating channel 111 more conveniently. in the matrix.

In other embodiments, the opening diameter of the inlet end of the exhaust hole 113 is larger than the opening diameter of the outlet end of the exhaust hole 113 . Specifically, the channel diameter of the exhaust hole 113 can also gradually become smaller along the flow direction of the gas in the exhaust hole 113, forming a reverse trumpet-shaped channel. The reverse trumpet-shaped hole can make hot air enter from the hole inlet end of the exhaust hole 113, and as the diameter of the opening becomes smaller, the hot air can be collected. When the hot air is discharged from the hole outlet end of the exhaust hole 113, The hot air is more concentrated, making it easier for the hot air to enter the aerosol substrate.

In this embodiment, the tunnels of the exhaust holes 113 are arranged obliquely, and the tunnels of the exhaust holes 113 are inclined to the second direction, and the second direction is the direction in which the gas is discharged from the inside of the aerosol generating substrate 120 . It should be noted that, in this embodiment, the gas is discharged from the inside of the aerosol-generating substrate 120 in a direction from bottom to top, and the channel of the exhaust hole 113 faces the gas from the inside of the aerosol-generating substrate 120. The direction of outward discharge is inclined (that is, arranged obliquely upward), that is, the position of the air inlet end opening of the air outlet 113 in the longitudinal direction is lower than the air outlet opening of the air outlet 113, so that hot air flows through the air outlet When 113, there can be an oblique upward flow direction, making the air flow more smooth.

Referring to Fig. 5, Fig. 5 shows the second embodiment provided by the present invention. The difference between this embodiment and the first embodiment is that the heating element of this embodiment further includes a preheating pipe 130 . The preheating tube 130 is connected in the inner cavity of the heating tube 110, the gas heating channel 111 includes a first channel 1111 and a second channel 1112, the first channel 1111 is located in the inner cavity of the preheating tube 130, and the second channel 1112 is located in the inner cavity of the preheating tube 1112. In the interval area between the outer wall of 130 and the inner wall of the heating pipe 110, the air inlet 112 is arranged at the end of the preheating pipe 130, and the end of the heating pipe 110 and the preheating pipe 130 away from the air inlet 112 are all sealed. The first channel 1111 communicates with the second channel 1112 .

It should be noted that, in this embodiment, after the air enters the first channel 1111 in the preheating pipe 130, it flows along the length direction of the preheating pipe 130. Since the end of the preheating pipe 130 away from the air inlet 112 is sealed, All the air can enter the second passage 1112, and at the same time, under the obstruction of one end of the heat pipe 110 which is sealed, the air enters the second passage and flows in the opposite direction along the heat pipe 110, and then flows through the exhaust hole on the heat pipe 110. 130 is expelled into the aerosol-generating substrate 120 . It should be noted that when the air flows in the second channel 1112, the flow direction of the air is opposite to the flow direction of the air in the first channel 1111, so that the movement distance of the air in the heating tube 110 is the distance of the air in the first channel 1111 and the path of the air in the second channel, thereby increasing the heating path of the air in the inner cavity of the heating pipe 110 .

In this embodiment, by adding the preheating tube 130 in the inner cavity of the heating tube 110 , the heating stroke of the air in the inner cavity of the heating tube 110 is increased, and the heating stroke of the air is increased. Compared with a single heating channel, the air enters the first channel and the second channel to be heated sequentially, so that the heating time of the air is increased at the same flow rate, and the air can be heated as close as possible to the expected temperature, so that the air can have enough The heat de-saturates and heats the aerosol-generating substrate 120. By increasing the heating stroke of the air, the air entering the heating channel can be preheated to the expected temperature even if the user sucks hard to generate a greater air flow rate, thus effectively reducing the fluctuation of the air preheating temperature , the preheating temperature is relatively stable and will not fluctuate greatly due to the user's suction force.

In this embodiment, the ends of the second channel 1112 are sealed. It should be noted that, in this application, the path end of the air flow direction in the second channel is referred to as the end of the second channel 1112 . In this embodiment, the end of the second channel 1112 is the end of the heat pipe 110 close to the air inlet 112 . In this embodiment, in order to prevent hot air from leaking from the end of the heat pipe 110 near the air inlet 112, the end surface of the heat pipe 110 near the air inlet is lower than the bottom surface of the aerosol generating substrate, and the heat pipe 110 is close to the air inlet. One end of the port 112 is sealed.

In other embodiments, when the end surface of the heat pipe 110 near the air inlet is flush with the bottom surface of the aerosol generating substrate 120, or when the end surface of the heat pipe 110 near the air inlet is higher than the aerosol generating substrate When the bottom surface of the material 120 is used, the end of the heat pipe 110 close to the air inlet 112 can be sealed, or can be set to communicate with the aerosol generating substrate 130, that is, the end of the second channel can be sealed, or can be set to communicate with the aerosol generating substrate 130. The sol-generating substrate 130 communicates.

In this embodiment, the end of the heat pipe 110 away from the air inlet 112 is provided with a first sealing member 170 , and the end of the second channel is provided with a second sealing member 180 . The second sealing member 180 is also connected to the end of the aerosol generating substrate 120 near the air inlet 112 , and the second sealing member 180 can seal the end of the aerosol generating substrate 120 and the end of the second channel 1112 at the same time.

In this embodiment, the preheating pipe 130 may be made of metal, ceramics, glass or other materials with high temperature resistance and high thermal conductivity.

In this embodiment, the end of the preheating pipe 130 away from the air inlet is provided with a ventilating structure, and the first channel communicates with the second channel through the venting structure. Specifically, the ventilation structure 131 may be a slot or a through hole.

It should be noted that other technical features of this embodiment are the same as those of the first embodiment, and will not be repeated here.

Based on the above-mentioned aerosol generating product 100, the embodiment of the present application also provides an aerosol generating device. Referring to FIG. The aerosol-generating article 100 described in one aspect. The induction coil 300, the power supply 600 and the control circuit board 700 are all installed inside the housing 200, the power supply 600 is connected to the control circuit board 700, and the control circuit board 700 is connected to the induction coil 300 to provide alternating current for the induction coil 300. Electric current, the part of the aerosol generating product 100 with the heating element can be inserted and removed from the inside of the housing 200 . Wherein, when the aerosol generating product is inserted into the housing 200, the induction coil 300 is arranged around the outer side of the heating element of the aerosol generating product 100, and the heating element includes a heating tube 110, and the heating tube 110 is made of metal material.

It can be understood that the working principle of the aerosol generating device is as follows:

After the induction coil 300 is energized, the heating element inserted into the housing 200 receives the power transmitted by the induction coil and generates electromagnetic induction, thereby starting to generate heat. After the heating tube 110 heats up, the aerosol generating substrate 120 is gas and fixed. The dual-mode heating enables the aerosol generating substrate 120 to be heated to generate an aerosol, which is discharged outside for inhalation by the user.

Compared with the prior art, the aerosol generator has at least the following technical effects:

The aerosol generating device electromagnetically heats the heating tube 110 through the induction coil 300, so that the heating tube 110 can heat the aerosol-generating substrate 120 in dual modes, so that the aerosol-generating substrate 120 can be fully heated to avoid the generation of the aerosol-generating substrate The problem of insufficient carbonization can also produce more aerosols, increase the amount of atomization, and improve the taste of smoking.

In this embodiment, the aerosol generating device further includes a bracket 400, the bracket 400 is installed inside the casing 200, and the bracket 400 is provided with a slot whose shape matches the shape of the aerosol generating product 100, and the bracket 400 is provided with a slot. The rack 400 is used to carry the aerosol-generating article 100 inserted into the housing 200 . An air intake channel 900 may be provided between the bracket 400 and the housing 200, and the bottom of the bracket 400 is provided with an air intake through hole, and the air intake channel 900 communicates with the slot through the air intake through hole, so that the air can pass through the intake port in turn. The air channel 900 and the air inlet through hole reach the air inlet of the aerosol generating article 100 . Specifically, air enters the interior of the device from the air intake channel 900 between the bracket 400 and the housing 200, then enters the air intake through hole from the air intake channel 900, and finally enters the air intake channel located in the slot from the air intake through hole. In the gas heating channel of the aerosol-generating article 100.

It can be understood that, in order to improve the overall waterproof, dustproof and other protective performance of the aerosol generating device, an air intake channel may not be provided between the bracket 400 and the housing 200, and the slot of the bracket 400 and the aerosol generating A gap is formed between the products 100, and an air intake channel is formed through the gap between the two, so that air can enter the gas heating channel of the aerosol generating product 100 from the outside.

In this embodiment, the aerosol generating device further includes a magnetic isolation plate 500 connected to the housing 200 , and the magnetic isolation plate 500 is arranged between the induction coil 300 and the housing 200 . The magnetic isolation plate 500 is used to isolate the induction coil 300 from the outside world, so as to prevent the induction coil 300 from generating magnetic adsorption force on external objects during operation; the magnetic isolation plate 500 can also be used to prevent the induction coil 300 from being affected by external objects, so that the induction The magnetic field generated by the coil 300 can be more concentrated inside the aerosol generating device.

In this embodiment, the aerosol generator further includes a charging circuit board 800 , the power supply 600 is a rechargeable battery, the charging circuit board 800 is installed inside the casing, and the charging circuit board 800 is electrically connected to the power supply 600 .

Apparently, the embodiments described above are only some of the embodiments of the present application, not all of them. The drawings show preferred embodiments of the present application, but do not limit the patent scope of the present application. The present application can be implemented in many different forms, on the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features . All equivalent structures made using the contents of the description and drawings of this application, directly or indirectly used in other related technical fields, are also within the scope of protection of this application.

Claims (20)

An aerosol generating product, characterized in that it includes a heating element and an aerosol generating substrate, the heating element is provided with a gas heating channel, an air inlet and an exhaust hole, and the gas heating channel is located on the heating element Inner cavity, the gas heating channel communicates with the air inlet and the exhaust hole, the aerosol generating substrate is in contact with the outside of the heating element, and is located on the outlet end of the exhaust hole After entering the gas heating channel, the air can enter the inside of the aerosol generating substrate through the exhaust hole. The aerosol generating product according to claim 1, wherein the heating element comprises a heating tube, the inner cavity of the heating tube is the gas heating channel, and the end of the heating tube is far away from the air inlet For sealing purposes, the exhaust hole is opened on the side wall of the heat pipe, and the aerosol generating substrate is outside the heat pipe and in contact with the heat pipe. The aerosol generating product according to claim 2, wherein the heating element further includes a preheating tube connected in the inner cavity of the heating tube, and the gas heating channel includes a first a channel and a second channel, the first channel is located in the inner cavity of the preheating tube, the second channel is located in the space between the outer wall of the preheating tube and the inner wall of the heating tube, the The air inlet is arranged at the end of the preheating pipe, the heating pipe and the end of the preheating pipe far away from the air inlet are sealed, and the side wall of the preheating pipe is provided with a ventilating structure. The first channel and the second channel communicate through the air-permeable structure. The aerosol-generating product according to claim 1, characterized in that the aerosol-generating product further comprises a breathable adsorbent, and the breathable adsorbent is connected to the heating element and is located at the bottom of the heating element. The aerosol-generating article according to claim 1, wherein the aerosol-generating article further comprises a filter, the filter is connected to the aerosol-generating substrate, and the filter is located on the aerosol-generating substrate. downstream. The aerosol generating product according to claim 5, wherein the aerosol generating product further comprises an aerosol cooling element, and the two ends of the aerosol cooling element are respectively connected to the aerosol generating substrate, the filter connected, the aerosol-cooling element is located downstream of the aerosol-generating substrate and upstream of the filter. The aerosol-generating article according to claim 1, wherein the end of the aerosol-generating substrate close to the air inlet is sealed. The aerosol-generating product according to claim 1, wherein the heating element and the aerosol-generating substrate are arranged coaxially. The aerosol-generating product according to claim 1, wherein the exhaust holes are one or more combinations of circular holes, oval holes, triangular holes, polygonal holes and special-shaped holes. The aerosol generating product according to claim 1, wherein the exhaust holes are arranged along a first direction on the heating element, and the diameters of the exhaust holes arranged along the first direction are different, so The first direction is parallel to the flow direction of air in the gas heating channel. The aerosol-generating product according to claim, characterized in that, the opening diameter of the inlet end of the exhaust hole is smaller than the opening diameter of the outlet end of the exhaust hole. The aerosol-generating product according to claim 1, wherein the channel of the vent hole is arranged obliquely, and the channel of the vent hole is inclined to the second direction, and the second direction is that the gas flows from the The direction in which the inside of the aerosol-generating substrate is discharged outward. An aerosol generating device, characterized in that it comprises a housing, an induction coil, a power supply, a control circuit board, and the aerosol generating product according to claim 1; The induction coil, the power supply and the control circuit board are all installed inside the casing, and the part of the aerosol generating product with the heating element can be plugged in and removed from the inside of the casing, and the power supply and control Circuit board connection, the control circuit board is connected to the induction coil; Wherein, when the sol generating product is inserted into the housing, the induction coil is arranged around the outside of the heating element of the aerosol generating product, the heating element includes a heating tube, and the heating tube is made of metal material. The aerosol generating device according to claim 13, characterized in that, the aerosol generating device further comprises a bracket, the bracket is installed inside the housing, the bracket is provided with a slot, the The shape of the slot is adapted to the shape of the aerosol generating product, and the bracket is used to carry the aerosol generating product. The aerosol generating device according to claim 13, characterized in that, the aerosol generating device further comprises a magnetic isolation plate, the magnetic isolation plate is connected to the housing, and the magnetic isolation plate is arranged in conjunction with the induction between the coil and the housing. The aerosol generating device according to claim 13, wherein the heating element includes a heating tube, the inner cavity of the heating tube is the gas heating channel, and the end of the heating tube is far away from the air inlet For sealing purposes, the exhaust hole is opened on the side wall of the heat pipe, and the aerosol generating substrate is outside the heat pipe and in contact with the heat pipe. The aerosol generating device according to claim 16, wherein the heating element further includes a preheating tube connected in the inner cavity of the heating tube, and the gas heating channel includes a first a channel and a second channel, the first channel is located in the inner cavity of the preheating tube, the second channel is located in the space between the outer wall of the preheating tube and the inner wall of the heating tube, the The air inlet is arranged at the end of the preheating pipe, the heating pipe and the end of the preheating pipe far away from the air inlet are sealed, and the side wall of the preheating pipe is provided with a ventilating structure. The first channel and the second channel communicate through the air-permeable structure. The aerosol generating device according to claim 13, characterized in that the aerosol generating product further comprises a breathable adsorbent, and the breathable adsorbent is connected to the heating element and is located at the bottom of the heating element. The aerosol generating device according to claim 13, wherein the aerosol generating product further comprises a filter, the filter is connected to the aerosol generating substrate, and the filter is located on the aerosol generating substrate. downstream. The aerosol generating device according to claim 19, wherein the aerosol generating product further comprises an aerosol cooling element, and the two ends of the aerosol cooling element are respectively connected to the aerosol generating substrate, the filter connected, the aerosol-cooling element is located downstream of the aerosol-generating substrate and upstream of the filter.

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