CN216255440U - Heat-generating body assembly and aerosol generating device - Google Patents

Abstract

The present application discloses a heating body assembly and an aerosol generating device. The heating body assembly is used in the aerosol generating device, and includes a heating body, a fixing seat and a sealing member. The heating body includes a base body; the base body has a first end and a second end arranged oppositely; a heating part and a connecting part are arranged on the base body, and the connecting part is located at the first end of the base body and is electrically connected with the heating part; the fixing seat is arranged on the base body, The seal is located on the side of the connecting part away from the second end and is spaced from the connecting part; the seal is sleeved on the base, and the connection between the seal and the base is located between the connecting part and the fixing seat. The heating element assembly and the aerosol generating device of the present application effectively prevent short circuits in electronic components, so as to increase the lifespan of the aerosol generating device and make the aerosol generating device excellent in safety performance.

Description

Heat-generating body assembly and aerosol generating device

technical field

The present application relates to the technical field of electronic atomization devices, and in particular, to a heating element assembly and an aerosol generating device.

Background technique

Heat Not Burning (HNB) device is a combination of aerosol generating device and aerosol generating substrate. The aerosol generating device heats the aerosol generating substrate at a low temperature, so that the aerosol generating substrate can generate the aerosol required by the user without burning the aerosol generating substrate.

Typically, an aerosol-generating device includes a heat-generating body assembly capable of heating an aerosol-generating substrate to generate an aerosol. However, when the internal sealing of the heating element assembly is poor, liquids such as the aerosol generating matrix and condensate may leak through the heating element assembly to the electronic components inside the aerosol generating device, which may cause a short circuit in the electronic components. As a result, the lifespan of the aerosol generating device is greatly reduced and the safety performance is poor.

Utility model content

The heating element assembly and the aerosol generating device provided by the present application can solve the problems of shortened lifespan and poor safety performance of the aerosol generating device caused by poor sealing in the heating element assembly.

In order to solve the above technical problems, the first technical solution adopted in the present application is to provide a heating element assembly for use in an aerosol generating device, including a heating element, a fixing seat and a sealing member.

The heating body includes a base body; the base body has a first end and a second end oppositely arranged; a heating part and a connecting part are arranged on the base body, and the connecting part is located at the first end of the base body and is electrically connected with the heating part;

the fixing seat is arranged on the base body, is located on the side of the connecting part away from the second end and is spaced apart from the connecting part;

The sealing piece is sleeved on the base body, and the connection between the sealing piece and the base body is located between the connecting part and the fixing seat. The sealing member is provided with a first installation hole, the sealing member is sleeved on the base body between the connecting portion and the fixing seat through the first installation hole, and the first installation hole and the base body are in interference fit.

Wherein, the heating element assembly further includes a heating seat assembly, the heating element is mounted on the heating seat assembly, and the heating seat assembly and the fixing seat clamp at least part of the sealing member.

The heating seat assembly has an accommodating cavity, the fixing seat and the seal are arranged in the accommodating cavity, the top wall of the accommodating cavity and the fixing seat clamp at least part of the sealing element, and the second end of the base extends out of the accommodating cavity.

The heating seat assembly includes a heating top seat and a heating base, and the heating top seat and the heating base cooperate to form a accommodating cavity; the heating top seat is sleeved on the heating body, and clamps at least part of the sealing member with the fixed seat; the sealing member seals the heating The gap between the top seat and the fixed seat.

Wherein, the top wall of the heating top seat is provided with a second installation hole, the heating top seat is sleeved on the base body through the second installation hole, the inner wall of the second installation hole is provided with a sealing rib, and the sealing rib seals the second installation hole and the The gap between the substrates; the top wall of the heating top seat and the fixed seat clamp at least part of the sealing element, and the sealing element seals the gap between the top wall of the heating top seat and the fixed seat.

Wherein, the surface of the top wall of the heating top seat close to the fixed seat has a clamping part, and the surface of the sealing element close to the top wall of the heating top seat has a clamping groove; the clamping groove is clamped with the clamping part, and the clamping part is connected with the fixing part The seat clamps the bottom wall of the snap groove.

Wherein, one end of the clamping portion close to the fixing base has a convex portion, the sealing member has a through hole, and the convex portion passes through the through hole and abuts with the fixing base.

Wherein, the through hole is in interference fit with the raised portion, so as to prevent the liquid from leaking along the raised portion.

Wherein, the heating base has a limit groove, and the fixing seat is arranged in the limit groove.

The bottom wall of the limiting slot has a limiting hole, the fixing seat is sleeved on the first end of the base body, the part of the base body located on the side of the fixing seat away from the connecting part is set in the limiting hole, and the limiting hole and the base body are in interference fit .

In order to solve the above technical problems, the second technical solution adopted in the present application is to provide an aerosol generating device, which includes a heating element assembly and a first mounting seat. The heating element assembly is the aforementioned heating element assembly; the heating element assembly is mounted on the first mounting seat.

In the heating element assembly and the aerosol generating device provided by the present application, the heating element assembly includes a heating element, a fixing seat and a sealing member. The heating body includes a base body, the base body has a first end and a second end oppositely arranged, a heating part and a connecting part are arranged on the base body, and the connecting part is located at the first end of the base body and is electrically connected with the heating part. By arranging the connecting part and the heating part on the base of the heating body, the heating part can heat the aerosol matrix to generate the aerosol after the heating part is energized, and the connecting part can be electrically connected with the external lead, so as to be electrically connected to the battery, the controller, etc. through the external lead. connected, the battery can provide power to the heating part, and the controller can control the heating part to work. The fixing seat is arranged on the base and is located on the side of the connecting part away from the second end. The fixing seat and the connecting part are arranged at intervals, and the fixing seat is used to fix the heating body so that the heating body can be fixed in the aerosol generating device. The seal is sleeved on the base, and the connection between the seal and the base is located between the connection part and the fixed seat, and the seal can prevent the liquid from leaking along the base from the side of the seal close to the connection part to the seal far from the connection part. one side of the seal, thereby preventing the liquid from leaking to the electronic components on the side of the seal away from the connecting part, effectively preventing the short circuit of the circuit in the electronic components, so as to increase the life of the aerosol generating device and make the aerosol generating device more durable. Excellent safety performance.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of an aerosol generating device and an aerosol generating substrate provided in an embodiment of the present application after being assembled;

Fig. 2 is the sectional view of the structure of Fig. 1 along the A-A direction;

3 is a schematic structural diagram of a heating body, a fixing seat and two external leads provided by an embodiment of the present application after being assembled;

Fig. 4 is the exploded structure schematic diagram of Fig. 3;

5 is a schematic diagram of an explosion structure of a heating element assembly provided by an embodiment of the application;

6 is a schematic cross-sectional structural diagram of a heating element assembly provided by an embodiment of the application;

7 is a schematic structural diagram of a heating top seat and a sealing member provided by an embodiment of the application;

8 is a schematic structural diagram of a heating base provided by an embodiment of the present application;

FIG. 9 is a schematic cross-sectional structural diagram of a heating element assembly according to another embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In the following description, for purposes of illustration and not limitation, specific details such as specific system structures, interfaces, techniques, etc. are set forth in order to provide a thorough understanding of the present application.

The terms "first", "second" and "third" in this application are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second", "third" may expressly or implicitly include at least one of said features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. All directional indications (such as up, down, left, right, front, rear...) in the embodiments of the present application are only used to explain the relative positional relationship between components under a certain posture (as shown in the accompanying drawings). , motion situation, etc., if the specific posture changes, the directional indication also changes accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes Other steps or components inherent to these processes, methods, products or devices.

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 appearances of the phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

The present application will be described in detail below with reference to the accompanying drawings and embodiments.

The present application provides an aerosol generating device 10. Please refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic structural diagram of an aerosol generating device and an aerosol generating substrate provided in an embodiment of the present application after assembly, and FIG. 2 is FIG. 1 Sectional view along the A-A direction.

Specifically, the aerosol generating device 10 includes a housing 11 , a first mounting seat 12 , a second mounting seat 13 , a heating element assembly 14 , a battery 15 , and a controller (not shown). An installation cavity 111 is formed in the housing 11 , and the heating element assembly 14 , the first installation seat 12 , and the second installation seat 13 are all disposed in the installation cavity 111 . The second mounting seat 13 is disposed at one end of the mounting cavity 111 , and the second mounting seat 13 forms a heating chamber 131 , and the heating chamber 131 communicates with the outside atmosphere through an opening 1311 .

The heating element assembly 14 is disposed on the side of the heating chamber 131 away from the opening 1311 . The heating element assembly 14 includes a heating element 141, which can generate heat after being energized. One end of the heating element 141 is arranged in the heating cavity 131 and is arranged on the side opposite to the opening 1311. The aerosol-generating matrix 20 can pass through the opening 1311. Inserted into the heating cavity 131, and one end of the heating element 141 is inserted into the aerosol generating substrate 20, so that the heating element 141 can heat the aerosol generating substrate 20 after being energized to generate aerosol for the user to suck.

The first mounting seat 12 is disposed on the side of the heating cavity 131 away from the opening 1311 , and is used to install and fix the heating element assembly 14 so that the axis of the heating element assembly 14 is parallel to the axis of the heating cavity 131 . Preferably, the axis of the heating body 141 coincides with the axis of the heating cavity 131, so that after one end of the heating body 141 is inserted into the aerosol generating substrate 20, it can uniformly heat the surrounding of the aerosol generating substrate 20 in the heating chamber 131.

For the heating element assembly 14, reference may also be made to the structure and function of the heating element assembly 14 involved in any of the following embodiments, and can achieve the same or similar technical effects, which will not be repeated here.

The battery 15 and the controller are disposed on the side of the second mounting seat 13 away from the heating chamber 131 , and both the battery 15 and the controller are electrically connected to the heating element assembly 14 . The battery 15 is used to provide power to the heating element assembly 14 to heat the aerosol-generating substrate 20 . The controller is used to control the start and stop of the heating of the heating element assembly 14 , and can control parameters such as power and temperature of the heating element assembly 14 .

Please refer to FIG. 3 and FIG. 4 , FIG. 3 is a schematic structural diagram of a heating body, a fixed seat and two external leads after assembly provided by an embodiment of the application, and FIG. 4 is a schematic diagram of an exploded structure of FIG. 3 . The heating element assembly 14 includes a heating element 141 , two external lead wires 143 and a fixing base 142 .

The heating body 141 includes a base body 1411 , a heating part and a connecting part 1413 . The base body 1411 has a first end 1411a and a second end 1411b arranged oppositely. The first end 1411a of the base body 1411 is the end of the base body 1411 away from the opening 1311 of the heating chamber 131 , and the second end 1411b of the base body 1411 is the end of the base body 1411 facing the heating chamber 131 . one end of the opening 1311. The shape of the base body 1411 can be needle shape as shown in FIG. 3 and FIG. 4 , also can be sheet shape, column shape, etc., and the cross section of the base body 1411 can be circular, quasi-circular, triangular or polygonal. The end of the second end 1411b of the base body 1411 forms an insertion portion, such as a tapered tip, to facilitate insertion into the aerosol-generating substrate 20 . In this embodiment, by setting the shape of the base body 1411 to be cylindrical, and forming an inserting part at the end of the second end 1411b of the base body 1411, the inserting part is conical, so that the aerosol generating base 20 can be inserted and withdrawn by rotating to generate heat. Body 141.

The base body 1411 is provided with a heat generating part (not shown) and a connecting part 1413 . The heating part can be a heating film, a heating wire, a heating net, etc. arranged on the base 1411. For example, in this embodiment, the heating part is a heating circuit arranged on the base 1411. The heating circuit can be printed on the flexible ceramic film, and the heating circuit can be printed on the flexible ceramic film. The flexible ceramic film with the heating circuit is wound on the outer surface of the base body 1411 , and the flexible ceramic film with the heating circuit is co-sintered with the base body 1411 . In this embodiment, the heating circuit is strip-shaped, and both ends of the strip-shaped heating circuit are disposed on the first end 1411 a of the base body 1411 . In other embodiments, the shape of the heat generating portion 1412 may also be a spiral shape.

The connecting portion 1413 is located at the first end 1411a of the base body 1411 and is electrically connected to the heating portion. Specifically, the number of the connecting portions 1413 is two, and the two connecting portions 1413 are disposed at the first end 1411 a of the base body 1411 at intervals. The connection portion 1413 may be a pad for soldering the two external leads 143 to the base. The two connection parts 1413 are electrically connected to the two ends of the heating part respectively, and at the same time, the two connection parts 1413 are electrically connected to the two external lead wires 143 respectively, and the two external lead wires 143 are used for electrical connection with the battery 15, the controller, etc., to The battery 15 can provide power for the heating part, and the controller can control the operation of the heating part. In one embodiment, both ends of the heat generating portion are disposed on the first end 1411 a of the base body 1411 , and two metal pads are disposed at the first end 1411 a of the base body 1411 to form two connecting portions 1413 . In another embodiment, both ends of the heat generating portion are respectively disposed on the first end 1411a and the second end 1411b of the base body 1411, and a metal pad is disposed on the first end 1411a of the base body 1411 to form a connecting portion 1413, and the other The metal pad extends from the second end 1411b of the base body 1411 to the first end 1411a of the base body 1411 and an end at the first end 1411a of the base body 1411 forms another connection portion 1413 .

In one embodiment, a protective layer (not shown) is provided on the outer surfaces of the heating part, the connecting part 1413 and the external lead 143, and the protective layer is used to prevent the aerosol from generating the matrix 20 and liquids such as condensate and the heating part, The connection portion 1413 and the external lead 143 are in direct contact, preventing short-circuit damage to the heat generating portion, the connection portion 1413 and the external lead 143 .

The fixing seat 142 is used for fixing the heating body 141, and the fixing seat 142 may be, but not limited to, a flange. The fixing seat 142 is disposed on the base body 1411 and is disposed at intervals on a side of the connecting portion 1413 away from the second end 1411b of the base body 1411 . In this embodiment, the fixing base 142 is sleeved on the base body 1411 , one end of the two external lead wires 143 is electrically connected to the two connecting portions 1413 respectively, and the other end extends through the opening on the fixing base 142 to the fixing base 142 away from the fixing base 142 . One side of the connecting portion 1413 . In this embodiment, the fixing base 142 can fix the heating body 141 so that the axis of the heating body 141 is parallel to the axis of the heating cavity 131 . After the substrate 20 is inserted into the heating element 141 in the heating chamber 131 , the heating element 141 can evenly heat the surrounding of the aerosol-generating substrate 20 . The material of the fixing seat 142 may be ceramic, and the fixing seat 142 may be co-sintered with the heating body 141 , that is, the fixing seat 142 and the heating body 141 may be integrally formed.

In this embodiment, the fixing base 142 is sleeved on the end of the first end 1411a of the base body 1411 , and the end surface of the first end 1411a of the base body 1411 is flush with the surface of the fixing base 142 away from the connecting portion 1413 . In other embodiments, the fixing seat 142 can also be sleeved on the first end 1411a of the base body 1411 and have a certain distance from the end of the first end 1411a, that is, the end of the first end 1411a of the base body 1411 passes through The fixing base 142 is disposed on the side of the fixing base 142 away from the connecting portion 1413 .

In this embodiment, the first end 1411a of the base body 1411 and the heat generating part on the base body 1411 are arranged in the heating chamber 131, so that the aerosol generating substrate 20 in the heating chamber 131 is heated by the heat generating part on the base body 1411, and the base body 1411 The second end 1411b , the connecting portion 1413 on the base 1411 and the fixing seat 142 are all disposed in the installation cavity 111 outside the heating cavity 131 .

Please refer to FIGS. 5 and 6 , FIG. 5 is a schematic diagram of an exploded structure of a heating element assembly provided by an embodiment of the application, and FIG. 6 is a schematic cross-sectional structural diagram of a heating element assembly provided by an embodiment of the application. The present application provides a heating element assembly 14 for use in the aerosol generating device 10 . The heating element assembly 14 includes a heating element 141 , a heating seat assembly 144 , a fixing seat 142 and a sealing member 145 .

The sealing member 145 is sleeved on the base body 1411 , and the connection position of the sealing member 145 and the base body 1411 is located between the connecting portion 1413 and the fixing seat 142 . 7, the sealing member 145 is provided with a first installation hole 1451, the sealing member 145 is sleeved on the base body 1411 through the first installation hole 1451, and the first installation hole 1451 is an interference fit with the base body 1411. An installation hole 1451 is located between the connecting portion 1413 and the fixing seat 142 at a position where the mounting hole 1451 and the base body 1411 are in an interference fit. Therefore, the sealing member 145 can prevent the liquid from leaking along the heating element 141 from the side of the sealing member 145 close to the connecting portion 1413 to the side of the sealing member 145 away from the connecting portion 1413 , thereby preventing the liquid from leaking to the side of the sealing member 145 away from the connecting portion 1413 . On the electronic components on one side of the connection portion 1413 , short circuits in the electronic components are effectively prevented, so as to increase the lifespan of the aerosol generating device 10 and make the aerosol generating device 10 have excellent safety performance. The heating seat assembly 144 can be used to install and fix the heating part, the fixing seat 142 and the sealing member 145 . Please refer to FIGS. 5 and 6 , the heating element 141 and the fixing seat 142 are mounted on the heating seat assembly 144 , the heating seat assembly 144 and the fixing seat 142 clamp at least part of the sealing member 145 , and the sealing member 145 seals the heating seat assembly 144 and the fixing seat 142 gaps between. The sealing member 145 is clamped by the heating seat assembly 144 and the fixing seat 142, so that the sealing member 145 can be fixed and limited. For example, in this embodiment, the heat generating seat assembly 144 and the fixing seat 142 clamp the sealing member 145 to limit the sealing member 145 to the base 1411 between the connecting portion 1413 and the fixing seat 142 .

Further, the heating seat assembly 144 includes a heating top seat 1441 and a heating base 1442. The heating top seat 1441 and the heating base 1442 cooperate to form an accommodating cavity 1443, and the fixing seat 142, the sealing member 145, and part of the heating body 141 are arranged in the accommodating cavity. within 1443. The heating top seat 1441 and the heating base 1442 can be detachably connected, and the heating top seat 1441 and the heating base 1442 can be connected by a snap connection, or as shown in FIG. 6 of this embodiment, the heating top seat 1441 and the heating base 1442 The connection is carried out by means of connectors, which may be, for example, screws, bolts, or the like.

Specifically, a side of the heating top seat 1441 facing the heating base 1442 is provided with an accommodating groove 1441a, and the side of the heating base 1442 facing the heating top seat 1441 is provided with a limiting groove 1442a, and the accommodating groove 1441a is communicated with the limiting groove 1442a, The setting groove 1441a and the limiting groove 1442a form an accommodating cavity 1443 in the heating seat assembly 144 . In other embodiments, the heating top seat 1441 and the heating base 1442 may also be integrally formed, that is, the heating seat assembly 144 is an integral structural member, and an accommodating cavity 1443 is provided therein.

The top wall of the accommodating cavity 1443 and the fixing seat 142 clamp at least part of the sealing member 145 . Specifically, the top wall 1441b of the accommodating cavity 1443 abuts on the side of the sealing member 145 facing the connecting portion 1413, and the side of the fixing seat 142 facing the connecting portion 1413 abuts on the side of the sealing member 145 away from the connecting portion 1413, so as to realize the accommodating The top wall of the cavity 1443 and the fixing seat 142 clamp the sealing member 145 and fix the sealing member 145 on the base 1411 between the connecting portion 1413 and the fixing seat 142 .

In this embodiment, the heating top seat 1441 is sleeved on the heating body 141, and the first end 1411a of the base body 1411 is set in the accommodating cavity 1443, and the second end 1411b of the base body 1411 protrudes out of the accommodating cavity 1443 and is set in the heating chamber 131 . The heating top seat 1441 , the fixing seat 142 and the heating base 1442 jointly clamp the sealing member 145 to fix the sealing member 145 on the base body 1411 between the connecting portion 1413 and the fixing seat 142 . Further, please refer to FIG. 6 and FIG. 7 . FIG. 7 is a schematic structural diagram of a heating top seat and a sealing member according to an embodiment of the present application. The heating top seat 1441 has a top wall 1441b and an annular side wall 1441c. The annular side wall 1441c of the heating top seat 1441 is disposed on the side of the top wall 1441b of the heating top seat 1441 away from the heating cavity 131. The inner space enclosed by the annular side wall 1441c is an accommodating groove 1441a. In one embodiment, the top wall 1441b of the heating top seat 1441 and the fixing seat 142 clamp at least part of the sealing member 145 , and the sealing member 145 seals the gap between the top wall 1441b of the heating roof seat 1441 and the fixing seat 142 .

The top wall 1441b of the heating top seat 1441 is provided with a second mounting hole 1441d, and the heating top seat 1441 is sleeved on the base body 1411 through the second mounting hole 1441d. The second mounting hole 1441d can be an interference fit with the base body 1411, or, a sealing rib 1444 is provided on the inner wall of the second mounting hole 1441d, and the sealing rib 1444 seals the gap between the second mounting hole 1441d and the base body 1411 to prevent liquid from passing The heating part leaks from the side of the heating top seat 1441 close to the heating chamber 131 to the side of the heating top seat 1441 far from the heating chamber 131, thereby preventing the liquid from leaking to the electronic components along the heating part, effectively preventing the electronic components The short circuit of the middle circuit can increase the lifespan of the aerosol generating device 10 and make the safety performance of the aerosol generating device 10 excellent.

In this embodiment, as shown in FIGS. 6 and 7 , the surface of the top wall 1441b of the heating top seat 1441 close to the heating base 1442 has a clamping portion 1441e, and the surface of the sealing member 145 close to the top wall 1441b of the heating top seat 1441 has a clamping portion 1441e In the connecting groove 1452 , the engaging portion 1441e is engaged with the engaging groove 1452 . The clamping part 1441e and the fixing seat 142 clamp the bottom wall of the clamping groove 1452, or the clamping part 1441e and the heating base 1442 clamp the bottom wall of the clamping groove 1452. By setting the clamping part 1441e and the clamping groove 1452 , so that the heating top seat 1441 can further fix and limit the sealing member 145 .

In other embodiments, the surface of the top wall 1441b of the heating top seat 1441 close to the heating base 1442 may have a clamping groove 1452, and the surface of the sealing member 145 close to the top wall 1441b of the heating top seat 1441 may have a clamping part 1441e. The connecting groove 1452 is engaged with the engaging portion 1441e. The shapes of the snap groove 1452 and the snap portion 1441e are not limited and can be designed as required, as long as one of the heating base 1442 and the sealing member 145 has the snap portion 1441e and the other has the snap slot 1452 . The arrangement between the heating seat assembly 144 and the sealing member 145 is not limited to the several structures mentioned in this application, and other structures may also be used.

Further, one end of the engaging portion 1441e close to the fixing base 142 has a protruding portion 1441f, and the bottom wall of the engaging groove 1452 of the sealing member 145 has a through hole 1453 corresponding to the protruding portion 1441f. The protruding portion 1441f is disposed in the through hole 1453, and the sealing member 145 can be further fixed and limited by the cooperation of the protruding portion 1441f and the through hole 1453. In one embodiment, the through hole 1453 is in an interference fit with the raised portion 1441f to prevent liquid from leaking along the raised portion 1441f of the heating top seat 1441 to increase the sealing effect of the heating element assembly 14 .

The number of the protrusions 1441f and the through holes 1453 may be the same, and the number of the protrusions 1441f and the through holes 1453 may be one or more. In this embodiment, the number of the protrusions 1441f and the through holes 1453 is three. indivual. The greater the number of the protrusions 1441f and the through holes 1453, the better the fixing effect of the sealing member 145. In other embodiments, the through hole 1453 can also be a blind hole, which can not only be fixed and limited, but also prevent liquid leakage.

In an embodiment, as shown in FIG. 6 and FIG. 8 , FIG. 8 is a schematic structural diagram of a heating base provided by an embodiment of the application. The heating base 1442 has a limiting groove 1442a, and the fixing seat 142 is disposed in the limiting groove 1442a. The shape of the limiting groove 1442a may be the same as the shape of the fixing seat 142, so that the fixing seat 142 is disposed in the limiting groove 1442a, and the limiting groove 1442a can fix and limit the fixing seat 142. By arranging the fixing seat 142 in the limiting groove 1442a, on the one hand, the fixing of the heating element 141 can be realized; In the case where the seat 142 is vertical, the axis of the heating element 141 is made parallel to the axis of the heating seat assembly 144. By adjusting the heating seat assembly 144 to be parallel to the axes of the first mounting seat 12 and the second mounting seat 13, the heating body 141 can be The axis of the heating chamber 131 is parallel or coincident with the axis of the heating chamber 131 . Thus, the heating element 141 can uniformly heat the aerosol-generating substrate 20 in the heating chamber 131 .

In this embodiment, the protruding part 1441f of the heating top seat 1441 can also pass through the through hole 1453 and abut with the side of the fixing seat 142 close to the connecting part 1413, so that the protruding part 1441f and the limiting groove 1442a cooperate with each other. The periphery of the fixing seat 142 is limited, thereby realizing the fixing of the heating body 141 . In other embodiments, the fixing method of the heating seat assembly 144 to the fixing seat 142 may also be other methods, which are not limited to the fixing methods mentioned in this application.

In one embodiment, as shown in FIG. 9 , FIG. 9 is a schematic cross-sectional structural diagram of a heating element assembly provided by another embodiment of the present application. In this embodiment, the fixing seat 142 is sleeved on the first end 1411a of the base body 1411 , and the end of the first end 1411a of the base body 1411 passes through the fixing seat 142 and is arranged on a part of the fixing seat 142 away from the second end 1411b of the base body 1411 . side. The bottom wall of the limiting groove 1442a on the heating base 1442 has a limiting hole 1442b, and the portion of the base 1411 located at the second end 1411b of the fixing seat 142 away from the base 1411 is set in the limiting hole 1442b, and the limiting hole 1442b is connected to the limiting hole 1442b. The base body 1411 has an interference fit. In this embodiment, the second mounting hole 1441d of the heating top seat 1441 is also in an interference fit with the base body 1411 . The second mounting hole 1441d of the heating top seat 1441 and the limiting hole 1442b of the heating base 1442 are in an interference fit with the base body 1411, so that the fixing of the base body 1411 can be directly realized through the second mounting hole 1441d and the limiting hole 1442b. Coinciding the axes of the second mounting hole 1441d and the limiting hole 1442b can directly realize the coincidence of the axes of the heating seat assembly 144 and the heating body 141, thereby realizing the coincidence of the axes of the heating body 141 and the heating cavity 131, so that the heating body 141 The surrounding area of the aerosol-generating substrate 20 can be heated uniformly. This method of directly fixing the heating body 141 by the heating seat assembly 144 reduces the requirement for the perpendicularity of the fixing seat 142 and the heating body 141 , and reduces the requirements for the shape of the fixing seat 142 and the manufacturing accuracy of the fixing seat 142 . lower, thereby reducing the difficulty of manufacturing the heating element assembly 14 .

The above are only the embodiments of the present application, and are not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied in other related technical fields, All are similarly included in the scope of patent protection of the present application.

Claims (12)

1. A heating element assembly, used in the aerosol generating device, is characterized in that, comprising: The heating body includes a base body; the base body has a first end and a second end arranged opposite to each other; electrical connection; a fixing seat, disposed on the base body, located on the side of the connecting portion away from the second end and spaced apart from the connecting portion; The sealing member is sleeved on the base body, and the connection between the sealing member and the base body is located between the connecting portion and the fixing seat. 2 . The heating element assembly according to claim 1 , wherein the sealing member is provided with a first installation hole, and the sealing member is sleeved on the connecting portion and the said sealing member through the first installation hole. 3 . On the base body between the fixed seats, the first installation hole is in interference fit with the base body. 3. The heating element assembly according to claim 1, further comprising a heating seat assembly, the heating element is mounted on the heating seat assembly, and the heating seat assembly and the fixing seat are at least partially clamped. the seal. 4 . The heating element assembly according to claim 3 , wherein the heating seat assembly has an accommodating cavity, the fixing seat and the sealing member are arranged in the accommodating cavity, and the accommodating cavity The top wall of the base body and the fixing seat clamp at least part of the sealing member, and the second end of the base body protrudes out of the accommodating cavity. 5. The heating element assembly according to claim 4, wherein the heating seat assembly comprises a heating top seat and a heating base, and the heating top seat and the heating base cooperate to form the accommodating cavity; The heating top seat is sleeved on the heating body, and clamps at least part of the sealing member with the fixing seat; the sealing member seals the gap between the heating roof seat and the fixing seat. 6 . The heating element assembly according to claim 5 , wherein a second mounting hole is provided on the top wall of the heating top seat, and the heating top seat is sleeved on the heating top seat through the second mounting hole. 7 . On the base body, the inner wall of the second installation hole is provided with a sealing rib, and the sealing rib seals the gap between the second installation hole and the base body; the top wall of the heating top seat and the fixing seat At least part of the sealing member is clamped, and the sealing member seals the gap between the top wall of the heat-generating top seat and the fixed seat. 7 . The heating element assembly according to claim 6 , wherein the surface of the top wall of the heating top seat close to the fixed seat has a clipping portion, and the sealing member is close to the top wall of the heating top seat. 8 . The surface of the device has a clamping groove; the clamping groove is clamped with the clamping part, and the clamping part and the fixing seat clamp the bottom wall of the clamping groove. 8 . The heating element assembly according to claim 7 , wherein one end of the engaging portion close to the fixing seat has a convex portion, and the sealing member has a through hole through which the convex portion passes through. 9 . The through hole is in contact with the fixing seat. 9 . The heating element assembly according to claim 8 , wherein the through hole is in an interference fit with the protruding portion to prevent liquid from leaking along the protruding portion. 10 . 10 . The heating element assembly according to claim 5 , wherein the heating base has a limit groove, and the fixing seat is arranged in the limit groove. 11 . 11. The heating element assembly according to claim 10, wherein the bottom wall of the limiting groove has a limiting hole, the fixing seat is sleeved on the first end of the base body, and the base body is located at the The part of the fixing seat on the side away from the connecting part is arranged in the limiting hole, and the limiting hole is in an interference fit with the base body. 12. An aerosol generating device, characterized in that, comprising: A heating element assembly, the heating element assembly is the heating element assembly according to any one of claims 1-11; A first mounting seat, on which the heating element assembly is mounted.

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