CN216255440U

CN216255440U - Heating element assembly and aerosol generating device

Info

Publication number: CN216255440U
Application number: CN202122181104.5U
Authority: CN
Inventors: 叶世栋; 周杰
Original assignee: Shenzhen Maishi Technology Co Ltd
Current assignee: Shenzhen Maishi Technology Co Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-04-12
Anticipated expiration: 2031-09-08
Also published as: WO2023035827A1

Abstract

The application discloses heat-generating body subassembly and aerosol generate device, this heat-generating body subassembly is arranged in the aerosol generate device, including heat-generating body, fixing base and sealing member. The heating element comprises a substrate; the base body is provided with a first end and a second end which are oppositely arranged; the base body is provided with a heating part and a connecting part, and the connecting part is positioned at the first end of the base body and is electrically connected with the heating part; the fixed seat is arranged on the base body, is positioned on one side of the connecting part far away from the second end and is arranged at intervals with the connecting part; the sealing element is sleeved on the base body, and the joint of the sealing element and the base body is located between the connecting part and the fixed seat. The heating element assembly and the aerosol generating device effectively prevent short circuit of circuits in electronic elements, so that the service life of the aerosol generating device is prolonged, and the safety performance of the aerosol generating device is excellent.

Description

Heating element assembly and aerosol generating device

Technical Field

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

Background

A Heat Not Burning (HNB) device is a combination of an aerosol generating device plus an aerosol generating substrate. The aerosol generating device heats the aerosol generating substrate at a low temperature so that the aerosol generating substrate can be non-combustible while the aerosol generating substrate is allowed to generate the aerosol desired by the user.

Typically, aerosol-generating devices comprise a heater assembly capable of heating an aerosol-generating substrate to generate an aerosol. However, if the interior of the heat generating element assembly is poorly sealed, a liquid such as an aerosol-generating substrate and condensate may leak through the heat generating element assembly to the electronic components inside the aerosol-generating device, which may cause short-circuiting of circuits in the electronic components, resulting in a significantly reduced life of the aerosol-generating device and poor safety.

SUMMERY OF THE UTILITY MODEL

The application provides a heat-generating body subassembly and aerosol generating device can solve the problem that life-span reduction, the security performance are poor of the aerosol generating device that sealed harmfully caused in the heat-generating body subassembly.

In order to solve the above technical problem, the first technical solution adopted by the present application is: a heating element assembly is provided, which is used in an aerosol generating device and comprises a heating element, a fixing seat and a sealing element.

The heating element comprises a substrate; the base body is provided with a first end and a second end which are oppositely arranged; the base body is provided with a heating part and a connecting part, and the connecting part is positioned at the first end of the base body and is electrically connected with the heating part;

the fixed seat is arranged on the base body, is positioned on one side of the connecting part far away from the second end and is arranged at intervals with the connecting part;

the sealing element is sleeved on the base body, and the joint of the sealing element and the base body is positioned between the connecting part and the fixed seat. Wherein, be provided with first mounting hole on the sealing member, the sealing member is located on the base member between connecting portion and the fixing base through first mounting hole cover, first mounting hole and base member interference fit.

The heating body assembly further comprises a heating seat assembly, the heating body is installed on the heating seat assembly, and at least part of the sealing piece is clamped between the heating seat assembly and the fixing seat.

The heating seat assembly is provided with a containing cavity, the fixing seat and the sealing element are arranged in the containing cavity, the top wall of the containing cavity and the fixing seat clamp at least part of the sealing element, and the second end of the base body extends out of the containing cavity.

The heating seat assembly comprises a heating top seat and a heating base, and the heating top seat and the heating base are matched to form an accommodating cavity; the heating top seat is sleeved on the heating body and clamps at least part of the sealing element with the fixed seat; the sealing element seals the gap between the heating top seat and the fixed seat.

The top wall of the heating top seat is provided with a second mounting hole, the heating top seat is sleeved on the base body through the second mounting hole, the inner wall of the second mounting hole is provided with a sealing rib, and the sealing rib seals a gap between the second mounting hole and the base body; the roof of the top seat that generates heat and fixing base centre gripping at least partial sealing member, the clearance between the roof of the top seat that generates heat and the fixing base is sealed to the sealing member.

The surface of the top wall of the heating top seat, which is close to the fixed seat, is provided with a clamping part, and the surface of the sealing element, which is close to the top wall of the heating top seat, is provided with a clamping groove; the clamping groove is clamped with the clamping portion, and the clamping portion and the bottom wall of the fixing seat clamping groove are clamped.

Wherein, the joint portion has the bellying near the one end of fixing base, has the through-hole on the sealing member, and the bellying passes through the through-hole and the fixing base butt.

Wherein, through-hole and bellying interference fit to the seepage of separation liquid along the bellying.

Wherein, the base that generates heat has the spacing groove, and the fixing base sets up in the spacing groove.

Wherein, the diapire of spacing groove has spacing hole, and the fixing base cover is established at the first end of base member, and the base member is located the part that the connecting portion one side was kept away from to the fixing base and is located spacing hole, spacing hole and base member interference fit.

In order to solve the above technical problem, the second technical solution adopted by the present application is: an aerosol generating device is provided, which includes a heat generating body assembly and a first mounting base. The heating element assembly is the heating element assembly; the heating element assembly is mounted on the first mounting base.

In the heating element subassembly and aerosol generating device that this application provided, the heating element subassembly includes heating element, fixing base and sealing member. The heating body comprises a base body, the base body is provided with a first end and a second end which are 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 base body of the heating body is provided with the connecting part and the heating part, the heating part can heat the aerosol generating substrate to generate aerosol after being electrified, the connecting part can be electrically connected with the external lead so as to be electrically connected with the battery, the controller and the like through the external lead, the battery can provide power for the heating part, and the controller can control the heating part to work. The fixing base is arranged on the base body and located on one side, away from the second end, of the connecting portion, the fixing base and the connecting portion are arranged at intervals, and the fixing base is used for fixing the heating body so that the heating body can be fixed in the aerosol generating device. The sealing member is sleeved on the base body, the connecting part of the sealing member and the base body is located between the connecting part and the fixing seat, the sealing member can prevent liquid from leaking to one side, away from the connecting part, of the sealing member along the base body, and further prevent the liquid from leaking to the electronic element, away from one side, away from the connecting part, of the sealing member, short circuit of a circuit in the electronic element is effectively prevented, the service life of the aerosol generating device is prolonged, and the safety performance of the aerosol generating device is enabled to be excellent.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of an assembled aerosol-generating device and aerosol-generating substrate provided in accordance with an embodiment of the present application;

FIG. 2 is a cross-sectional view of the structure of FIG. 1 taken along A-A;

FIG. 3 is a schematic structural diagram of a heating element, a fixing base, and two external leads according to an embodiment of the present application after assembly;

FIG. 4 is a schematic diagram of the exploded structure of FIG. 3;

fig. 5 is an exploded view schematically illustrating a heat-generating body assembly according to an embodiment of the present application;

FIG. 6 is a schematic sectional view showing a heat generating body assembly according to an embodiment of the present application;

FIG. 7 is a schematic structural view of a heat generating top seat and a sealing member according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a heat-generating base according to an embodiment of the present application;

FIG. 9 is a schematic sectional view showing a heat generating body assembly according to another embodiment of the present application.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

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

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the described features. In the description of the present application, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.

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 application. The appearances of the 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 explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

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

An aerosol generating device 10 is provided, and referring to fig. 1 and 2, fig. 1 is a schematic structural view of an assembled aerosol generating device and aerosol generating substrate according to an embodiment of the present disclosure, and fig. 2 is a sectional view of fig. 1 along a-a.

Specifically, the aerosol-generating device 10 includes a case 11, a first mounting base 12, a second mounting base 13, a heat-generating body assembly 14, a battery 15, and a controller (not shown). A mounting cavity 111 is formed in the case 11, and the heat generating body assembly 14, the first mounting seat 12 and the second mounting seat 13 are all arranged in the mounting 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 cavity 131, and the heating cavity 131 is communicated with the external atmosphere through an opening 1311.

The heater assembly 14 is disposed on a side of the heating chamber 131 remote from the opening 1311. The heater assembly 14 includes a heater 141, the heater 141 being capable of generating heat when energized, one end of the heater 141 being disposed in the heating chamber 131 and on a side opposite to the opening 1311, the aerosol-generating substrate 20 being insertable into the heating chamber 131 through the opening 1311, and one end of the heater 141 being inserted into the aerosol-generating substrate 20, such that the heater 141 is capable of heating the aerosol-generating substrate 20 when energized to generate aerosol for a user to inhale.

The first mounting seat 12 is disposed on a side of the heating chamber 131 away from the opening 1311 and is used for mounting and fixing the heater assembly 14 so that the axis of the heater assembly 14 is parallel to the axis of the heating chamber 131. Preferably, the axis of the heating element 141 coincides with the axis of the heating chamber 131 so that one end of the heating element 141 can be inserted into the aerosol-generating substrate 20 to uniformly heat the aerosol-generating substrate 20 in the heating chamber 131 around it.

The structure and function of the heat generating body assembly 14 according to any of the following embodiments can be referred to for the heat generating body assembly 14, and the same or similar technical effects can be achieved, and the details are not described herein.

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

Referring to fig. 3 and 4, fig. 3 is a schematic structural view of an assembled heating element, a fixing base and two external leads according to an embodiment of the present application, and fig. 4 is a schematic structural view of an explosion of fig. 3. The heating element unit 14 includes a heating element 141, two external leads 143, and a fixing base 142.

The heat generating body 141 includes a base 1411, a heat generating portion, and a connecting portion 1413. The substrate 1411 has a first end 1411a and a second end 1411b which are oppositely arranged, the first end 1411a of the substrate 1411 is the end of the substrate 1411 away from the opening 1311 of the heating chamber 131, and the second end 1411b of the substrate 1411 is the end of the substrate 1411 towards the opening 1311 of the heating chamber 131. The shape of the substrate 1411 may be needle-like as shown in fig. 3 and 4, or may be sheet-like, columnar, etc., and the cross section of the substrate 1411 may be circular, quasi-circular, triangular, or polygonal, etc. The end of the second end 1411b of the substrate 1411 forms an insertion portion, such as a tapered tip, to facilitate insertion into the aerosol generating substrate 20. In this embodiment, the insertion portion is formed in the end portion of the second end 1411b of the base 1411, and the insertion portion is conical, by setting the shape of the base 1411 to be cylindrical, the insertion and withdrawal of the aerosol-generating substrate 20 into and from the heating body 141 by rotation is facilitated.

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

The connection portion 1413 is located at the first end 1411a of the base 1411 and is electrically connected to the heat generating portion. Specifically, the number of the connecting portions 1413 is two, and the two connecting portions 1413 are disposed at the first end 1411a of the base 1411 at intervals. The connection portion 1413 may be a pad for soldering the two external leads 143 to the substrate. The two connection portions 1413 are electrically connected to two ends of the heat generating portion, respectively, and the two connection portions 1413 are electrically connected to the two external leads 143, respectively, and the two external leads 143 are electrically connected to the battery 15, the controller, and the like, so that the battery 15 can provide power to the heat generating portion, and the controller can control the heat generating portion to operate. In one embodiment, two ends of the heat generating portion are disposed at the first end 1411a of the base 1411, and two metal pads are disposed at the first end 1411a of the base 1411 at an interval to form two connecting portions 1413. In another embodiment, two ends of the heat generating portion are respectively disposed at the first end 1411a and the second end 1411b of the substrate 1411, one metal pad is disposed at the first end 1411a of the substrate 1411 to form one connection portion 1413, and the other metal pad extends from the second end 1411b of the substrate 1411 to the first end 1411a of the substrate 1411 and an end portion of the first end 1411a of the substrate 1411 to form the other connection portion 1413.

In one embodiment, the outer surfaces of the heat generating portion, the connecting portion 1413, and the external leads 143 are provided with a protective layer (not shown) for preventing the aerosol-generating substrate 20 and the liquid such as the condensate from directly contacting the heat generating portion, the connecting portion 1413, and the external leads 143, and preventing the heat generating portion, the connecting portion 1413, and the external leads 143 from being damaged by short circuit.

The fixing base 142 is used to fix the heating element 141, and the fixing base 142 may be, but not limited to, a flange. The fixing base 142 is disposed on the base 1411, and is disposed at an interval on a side of the connecting portion 1413 away from the second end 1411b of the base 1411. In this embodiment, the fixing base 142 is sleeved on the base 1411, one end of each of the two external leads 143 is electrically connected to the two connecting portions 1413, and the other end of each of the two external leads passes through the opening of the fixing base 142 and extends to a side of the fixing base 142 away from the connecting portions 1413. In this embodiment, the fixing base 142 may fix the heating element 141 such that the axis of the heating element 141 is parallel to the axis of the heating chamber 131, and preferably, the axis of the heating element 141 is coincident with the axis of the heating chamber 131, so that after the aerosol-generating substrate 20 is inserted into the heating element 141 in the heating chamber 131, the heating element 141 can uniformly heat the circumference of the aerosol-generating substrate 20. The material of the fixing base 142 may be ceramic, and the fixing base 142 may be co-sintered with the heating body 141, i.e., the fixing base 142 and the heating body 141 may be integrally molded.

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

In this embodiment, the first end 1411a of the substrate 1411 and the heat generating portion on the substrate 1411 are disposed in the heating cavity 131 to heat the aerosol-generating substrate 20 in the heating cavity 131 through the heat generating portion on the substrate 1411, and the second end 1411b of the substrate 1411, the connecting portion 1413 on the substrate 1411 and the fixing base 142 are disposed in the mounting cavity 111 outside the heating cavity 131.

Referring to fig. 5 and 6, fig. 5 is a schematic view showing an explosion structure of a heat generating body assembly according to an embodiment of the present application, and fig. 6 is a schematic view showing a sectional structure of the heat generating body assembly according to the embodiment of the present application. A heat generator assembly 14 is provided for use in an aerosol generating device 10. The heating element assembly 14 includes a heating element 141, a heating base assembly 144, a fixing base 142, and a sealing member 145.

The sealing element 145 is sleeved on the base 1411, and a connection position between the sealing element 145 and the base 1411 is located between the connection portion 1413 and the fixing base 142. Specifically, referring to fig. 7, a first mounting hole 1451 is disposed on the sealing element 145, the sealing element 145 is sleeved on the base 1411 through the first mounting hole 1451, the first mounting hole 1451 is in interference fit with the base 1411, and a position where the first mounting hole 1451 is in interference fit with the base 1411 is located between the connecting portion 1413 and the fixing base 142. Therefore, the sealing member 145 can prevent the liquid from leaking from the side of the sealing member 145 close to the connection portion 1413 to the side of the sealing member 145 far from the connection portion 1413 along the heating element 141, and further prevent the liquid from leaking to the electronic component on the side of the sealing member 145 far from the connection portion 1413, thereby effectively preventing the short circuit of the circuit in the electronic component, increasing the service life of the aerosol generating device 10, and making the safety performance of the aerosol generating device 10 excellent. The heat generating seat assembly 144 may be used to mount and fix the heat generating unit, the fixing seat 142, and the sealing member 145. Referring to fig. 5 and 6, the heating element 141 and the fixing base 142 are mounted on the heating base assembly 144, the heating base assembly 144 and the fixing base 142 sandwich at least a part of the sealing member 145, and the sealing member 145 seals a gap between the heating base assembly 144 and the fixing base 142. The sealing element 145 is clamped by the heating seat assembly 144 and the fixing seat 142, so that the sealing element 145 can be fixed and limited. For example, in the present embodiment, the heat generating seat assembly 144 and the fixing seat 142 clamp the sealing element 145 to limit the sealing element 145 to the base 1411 between the connecting portion 1413 and the fixing seat 142.

Further, the heater socket 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 a receiving cavity 1443, and the fixing seat 142, the sealing member 145, and a portion of the heating element 141 are disposed in the receiving cavity 1443. The heating top seat 1441 and the heating base 1442 may be detachably connected, and the heating top seat 1441 and the heating base 1442 may 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 may be connected by a connecting member, which may be a screw, a bolt, or the like.

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

The top wall of the receiving cavity 1443 and the fixing seat 142 clamp at least part of the sealing element 145. Specifically, a top wall 1441b of the accommodating cavity 1443 abuts against one surface of the sealing element 145 facing the connecting portion 1413, and one surface of the fixing seat 142 facing the connecting portion 1413 abuts against one surface of the sealing element 145 away from the connecting portion 1413, so that the top wall of the accommodating cavity 1443 and the fixing seat 142 clamp the sealing element 145, and the sealing element 145 is fixed 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 element 141, the first end 1411a of the substrate 1411 is disposed in the accommodating cavity 1443, and the second end 1411b of the substrate 1411 extends out of the accommodating cavity 1443 and is disposed in the heating cavity 131. The heat generating top seat 1441, the fixing seat 142 and the heat generating base 1442 jointly clamp the sealing member 145, so that the sealing member 145 is fixed on the base 1411 between the connecting portion 1413 and the fixing seat 142. Further, please refer to fig. 6 and 7, fig. 7 is a schematic structural diagram of a heat generating 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 a side of the top wall 1441b of the heating top seat 1441 away from the heating cavity 131, and an inner space enclosed by the top wall 1441b and the annular side wall 1441c of the heating top seat 1441 is an accommodating groove 1441 a. In one embodiment, the top wall 1441b of the heater top block 1441 and the fixing block 142 sandwich at least a portion of the sealing member 145, and the sealing member 145 seals a gap between the top wall 1441b of the heater top block 1441 and the fixing block 142.

A second mounting hole 1441d is formed in a top wall 1441b of the heating top seat 1441, and the heating top seat 1441 is sleeved on the base 1411 through the second mounting hole 1441 d. The second mounting hole 1441d may be in interference fit with the base 1411, or a sealing rib 1444 is disposed on an inner wall of the second mounting hole 1441d, and the sealing rib 1444 seals a gap between the second mounting hole 1441d and the base 1411, so as to prevent liquid from leaking from a side of the heating top seat 1441 close to the heating cavity 131 to a side of the heating top seat 1441 away from the heating cavity 131 along the heating portion, further prevent the liquid from leaking onto the electronic component along the heating portion, effectively prevent a short circuit of a circuit in the electronic component, increase a lifetime of the aerosol generating device 10, and make the aerosol generating device 10 excellent in safety performance.

In this embodiment, as shown in fig. 6 and 7, the surface of the top wall 1441b of the heating top seat 1441 close to the heating base 1442 is provided with a clamping portion 1441e, the surface of the sealing member 145 close to the top wall 1441b of the heating top seat 1441 is provided with a clamping groove 1452, and the clamping portion 1441e is clamped with the clamping groove 1452. The clamping portion 1441e and the fixing base 142 clamp the bottom wall of the clamping groove 1452, or the clamping portion 1441e and the heating base 1442 clamp the bottom wall of the clamping groove 1452, and by providing the clamping portion 1441e and the clamping groove 1452, the heating top base 1441 can further fix and limit the sealing element 145.

In other embodiments, the surface of the top wall 1441b of the heater top seat 1441 close to the heater base 1442 may have a clamping groove 1452, the surface of the sealing member 145 close to the top wall 1441b of the heater top seat 1441 may have a clamping portion 1441e, and the clamping groove 1452 is clamped with the clamping portion 1441 e. The shapes of the clip groove 1452 and the clip portion 1441e are not limited, and may be designed as needed as long as one of the heat generating base 1442 and the sealing member 145 has the clip portion 1441e and the other has the clip groove 1452. The arrangement between the heat generating seat assembly 144 and the sealing member 145 is not limited to the several structures mentioned in this application, and may be other structures.

Furthermore, one end of the clamping portion 1441e close to the fixing base 142 has a protruding portion 1441f, a through hole 1453 is formed in a bottom wall of the clamping groove 1452 of the sealing member 145, and the through hole 1453 is disposed corresponding to the protruding portion 1441 f. The protruding portion 1441f is disposed in the through hole 1453, and the sealing member 145 can be further fixed and limited by the engagement of the protruding portion 1441f and the through hole 1453. In one embodiment, the through hole 1453 is interference fit with the protruding portion 1441f to block liquid from leaking along the protruding portion 1441f of the heat generating top seat 1441, thereby increasing the sealing effect of the heat generator assembly 14.

The number of the protruding parts 1441f and the through holes 1453 may be the same, and the number of the protruding parts 1441f and the through holes 1453 may be one or more, and in the present embodiment, the number of the protruding parts 1441f and the through holes 1453 is three. The larger the number of the protruding portions 1441f and the through holes 1453, the better the fixing effect on the sealing member 145. In other embodiments, the through hole 1453 may be a blind hole, which may not only fix and limit, but also prevent liquid leakage.

In an embodiment, as shown in fig. 6 and 8, fig. 8 is a schematic structural diagram of a heat generating base according to an embodiment of the present application. The heating base 1442 has a limiting groove 1442a, and the fixing base 142 is disposed in the limiting groove 1442 a. The shape of the limit groove 1442a may be the same as that of the fixing base 142, so that the fixing base 142 is disposed in the limit groove 1442a, and the limit groove 1442a can fix and limit the fixing base 142. By arranging the fixing base 142 in the limit groove 1442a, on one hand, the fixing of the heating element 141 can be realized, and on the other hand, the axis of the fixing base 142 is parallel to the axis of the heating seat assembly 144, and under the condition that the heating element 141 is perpendicular to the fixing base 142, the axis of the heating element 141 is further parallel to the axis of the heating seat assembly 144, and 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 axis of the heating element 141 and the axis of the heating cavity 131 can be parallel or overlapped. Thus, the heating element 141 can uniformly heat the aerosol-generating substrate 20 in the heating chamber 131.

In this embodiment, the protruding portion 1441f of the heating top seat 1441 may also pass through the through hole 1453 and abut against one surface of the fixing seat 142 close to the connecting portion 1413, so that the protruding portion 1441f and the limiting groove 1442a cooperate to limit the periphery of the fixing seat 142, thereby fixing the heating element 141. In other embodiments, the fixing manner of the heat generating seat assembly 144 to the fixing seat 142 may be other manners, and is not limited to the fixing manner mentioned in this application.

In one embodiment, as shown in fig. 9, fig. 9 is a schematic sectional structure view of a heat generating body assembly provided in another example of the present application. In this embodiment, the fixing base 142 is disposed at the first end 1411a of the base 1411, and the end of the first end 1411a of the base 1411 passes through the fixing base 142 and is disposed at a side of the fixing base 142 away from the second end 1411b of the base 1411. The bottom wall of the limit groove 1442a of the heating base 1442 is provided with a limit hole 1442b, a portion of the base 1411, which is located at the second end 1411b of the fixing base 142, which is far away from the base 1411, is disposed in the limit hole 1442b, and the limit hole 1442b is in interference fit with the base 1411. In this embodiment, the second mounting hole 1441d of the heating top 1441 is also interference-fitted with the base 1411. The second mounting hole 1441d of the heating top seat 1441 and the limiting hole 1442b of the heating base 1442 are in interference fit with the base 1411, so that the base 1411 can be directly fixed through the second mounting hole 1441d and the limiting hole 1442b, and the axis of the heating base assembly 144 can be directly overlapped with the axis of the heating element 141 by overlapping the axes of the second mounting hole 1441d and the limiting hole 1442b, so that the heating element 141 and the heating cavity 131 are overlapped, and the heating element 141 can uniformly heat the periphery of the aerosol generating substrate 20. In this way, the heating element 141 is directly fixed by the heating base assembly 144, so that the requirement of the perpendicularity between the fixing base 142 and the heating element 141 is reduced, the requirement of the shape of the fixing base 142 is reduced, the requirement of the manufacturing precision of the fixing base 142 is reduced, and the manufacturing difficulty of the heating element assembly 14 is reduced.

The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.

Claims

1. A heat-generating body assembly used in an aerosol-generating apparatus, comprising:

a heating element including a base; the base body is provided with a first end and a second end which are oppositely arranged; the base body is provided with a heating part and a connecting part, and the connecting part is positioned 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 positioned on one side of the connecting part far away from the second end and is arranged at intervals with the connecting part;

the sealing element is sleeved on the base body, and the joint of the sealing element and the base body is located between the connecting part and the fixed seat.

2. A heat-generating body assembly as described in claim 1, wherein a first mounting hole is provided in said sealing member, said sealing member is fitted to said base between said connection portion and said fixing base through said first mounting hole, and said first mounting hole is in interference fit with said base.

3. A heat-generating body assembly as described in claim 1, further comprising a heat-generating base assembly on which the heat-generating body is mounted, the heat-generating base assembly sandwiching at least a part of the sealing member with the holder.

4. A heat generating body assembly as described in claim 3, wherein said heat generating base assembly has a receiving chamber, said fixing base and said sealing member are disposed in said receiving chamber, a top wall of said receiving chamber and said fixing base hold at least a portion of said sealing member, and said second end of said base extends out of said receiving chamber.

5. The heating body assembly as claimed in 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 are matched to form the accommodating cavity; the heating top seat is sleeved on the heating body and clamps at least part of the sealing element with the fixed seat; the sealing element seals a gap between the heating top seat and the fixed seat.

6. The heat-generating body assembly as described in claim 5, wherein a second mounting hole is provided on a top wall of said heat-generating top base, said heat-generating top base is fitted on said base through said second mounting hole, a sealing rib is provided on an inner wall of said second mounting hole, said sealing rib sealing a gap between said second mounting hole and said base; 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 a gap between the top wall of the heating top seat and the fixed seat.

7. The heat-generating body assembly as described in claim 6, wherein a surface of the top wall of said heat-generating top base adjacent to said fixing base has a catching portion, and a surface of said sealing member adjacent to the top wall of said heat-generating top base has a catching groove; the joint groove with joint portion joint, just joint portion with the fixing base centre gripping the diapire in joint groove.

8. A heat-generating body assembly as described in claim 7, wherein a protrusion is provided at one end of said clamping portion close to said holder, and a through hole is provided on said sealing member, and said protrusion passes through said through hole and abuts against said holder.

9. A heat-generating body assembly as described in claim 8, wherein the through-hole is interference-fitted with the boss to block liquid from leaking along the boss.

10. A heat-generating body assembly as described in any one of claims 5 to 9, wherein the heat-generating base has a limiting groove, and the holder is disposed in the limiting groove.

11. A heat-generating body assembly as described in claim 10, characterized in that the bottom wall of the limiting groove has a limiting hole, the holder is fitted over the first end of the base, the portion of the base on the side of the holder away from the connecting portion is disposed in the limiting hole, and the limiting hole is in interference fit with the base.

12. An aerosol generating device, comprising:

a heat-generating body assembly which is the heat-generating body assembly described in any one of claims 1 to 11;

and the heating body assembly is arranged on the first mounting seat.