CN220192199U - Aerosol generating device and heating component - Google Patents

Abstract

The utility model relates to an aerosol generating device and a heating component, wherein the heating component comprises a heating part for generating infrared light waves in an electrified state and a sleeve for allowing the infrared light waves to penetrate; the heating part comprises a heating substrate, an antioxidation layer arranged on the outer surface of the heating substrate and used for preventing the heating substrate from being oxidized, and an infrared radiation layer arranged on one side of the antioxidation layer away from the heating substrate; and an accommodating cavity which is used for accommodating the heating part and is arranged in a non-sealing manner is formed in the sleeve. According to the heating component, the anti-oxidation layer is arranged on the outer surface of the heating substrate of the heating part, so that the heating substrate can be prevented from being oxidized, the accommodating cavity for accommodating the heating part in the sleeve can be arranged in a non-sealing mode, namely, the sleeve does not need to be subjected to sealing treatment, vacuumizing, inert gas filling and the like, the assembly process of the heating component is simplified, and the manufacturing cost is reduced.

Description

Aerosol generating device and heating component

Technical Field

The utility model relates to the field of heating non-combustion atomization, in particular to an aerosol generating device and a heating component.

Background

In the HNB (heating non-combustion) atomizing field, a heating system such as a central heating element heating system or a peripheral heating element heating system is generally adopted, and it is common practice that the heating element generates heat and then the heat is directly transferred to a medium such as an aerosol-forming substrate by heat conduction, and the medium is atomized at a temperature of generally 350 ℃. The heating mode has the defects that the heating body directly or indirectly conducts heat to media such as aerosol forming matrix and the like through solid materials, the working temperature of the heating body is required not to be too high, otherwise, the media are over-burned or the solid materials generate peculiar smell to influence the sucking taste of the electronic cigarette.

In the related art, a heating component for heating by generating heat radiation exists, the working temperature of a heating body can reach about 400 ℃, but when the heating body works at a high temperature, the base material of the heating body can have oxidation problem, so that the resistance value of the heating body is greatly changed, the heating stability is affected, and in order to solve the oxidation problem, the problem is generally solved by vacuumizing or filling inert gas into a sealed installation space, and the process is complex and the manufacturing cost is high.

Disclosure of Invention

It is an object of the present utility model to provide an improved heat generating assembly, and further to provide an improved aerosol generating device.

The technical scheme adopted for solving the technical problems is as follows: a heating component is constructed, which comprises a heating part for generating infrared light waves in an electrified state and a sleeve for allowing the infrared light waves to penetrate;

the heating part comprises a heating substrate, an antioxidation layer arranged on the outer surface of the heating substrate and used for preventing the heating substrate from being oxidized, and an infrared radiation layer arranged on one side of the antioxidation layer away from the heating substrate;

the sleeve is internally provided with an accommodating cavity which is used for accommodating the heating part and is arranged in a non-sealing way, and a gap is formed between at least part of the heating part and the wall of the sleeve.

In some embodiments, the oxidation resistant layer includes an oxide film formed on the heat generating substrate outer surface.

In some embodiments, the thickness of the oxidation resistant layer is 1um to 150um.

In some embodiments, an air gap is left between the inner wall of the accommodating cavity and the heating part.

In some embodiments, the cannula comprises a hollow tubular body;

the accommodating cavity is formed in the tubular body;

an opening is arranged at one end of the tubular body.

In some embodiments, the heat generating portion has two conductive portions connected thereto; both of the conductive portions protrude from the opening.

In some embodiments, the sleeve includes a pointed structure disposed at an end of the tubular body distal from the opening.

In some embodiments, the number of the conductive parts is two, and the two conductive parts are arranged at intervals;

the heating component further comprises an insulating piece which is at least partially arranged in the sleeve and used for insulating the two conductive parts.

In some embodiments, further comprising a support base supporting the heat generating portion and the sleeve; the sleeve is at least partially inserted into the supporting seat.

In some embodiments, a conductive member connected to the conductive portion is provided in the support base.

In some embodiments, the support comprises a bracket supporting the sleeve and a seal;

the sealing element is sleeved on a part of the sleeve, and seals a gap between the inner wall of the bracket and the outer wall of the sleeve.

In some embodiments, the sealing member is a hollow structure with two ends penetrating, and a channel for the sleeve to penetrate is formed on the inner side.

In some embodiments, the sealing element comprises a sleeve body with two ends penetrating through the sleeve for being sleeved on part of the sleeve, and a first sealing part protruding from the outer side wall of the sleeve body;

the first sealing part is fixedly clamped with the bracket.

In some embodiments, the support base comprises a housing sleeved on the periphery of the bracket and provided with a sleeve interface matched with the bracket;

the support comprises a bottom wall, and a gap is reserved between the sleeve joint and the bottom wall.

In some embodiments, the housing is detachably sleeved on the bracket;

the shell is provided with a through hole for the heating structure part to penetrate out.

In some embodiments, the sealing member further comprises a sleeve body with two ends penetrating through the sleeve body and used for being sleeved on part of the sleeve pipe, and a second sealing part protruding from the outer side wall of the sleeve body; the second sealing part is positioned between the bracket and the housing in the assembly state of the housing and the bracket and is used for sealing a gap formed between the bracket and the end face of the through hole.

In some embodiments, the sleeve is infrared-transparent glass, transparent ceramic, or diamond.

In some embodiments, the whole heating body is arranged at intervals with the wall of the sleeve.

In some embodiments, the heater is disposed in no direct contact with the sleeve.

In some embodiments, the infrared radiation layer includes an infrared layer and/or a composite infrared layer formed by compositing an infrared layer forming matrix with a binder for binding with the antioxidant layer.

In some embodiments, the heat-generating substrate comprises a metal substrate; the metal matrix comprises a nichrome matrix or an iron-chromium-aluminum alloy matrix.

The utility model also constructs an aerosol generating device comprising the heating assembly of the utility model.

The aerosol generating device and the heating component have the following beneficial effects: according to the heating component, the anti-oxidation layer is arranged on the outer surface of the heating substrate of the heating part, so that the heating substrate can be prevented from being oxidized, the accommodating cavity for accommodating the heating part in the sleeve can be arranged in a non-sealing mode, namely, the sleeve does not need to be subjected to sealing treatment, vacuumizing, inert gas filling and the like, the space in the pipe can be communicated with the atmosphere outside the device, the assembly process of the heating component is simplified, and the manufacturing cost is reduced.

In addition, by arranging the infrared radiation layer on the outer surface of the heating substrate, when the heating substrate generates heat in an electrified state, the heat can excite the infrared radiation layer to radiate infrared light waves, the infrared light waves can penetrate through the sleeve to the aerosol forming substrate and heat the aerosol forming substrate, and under the condition that the maximum working temperature of the heating body reaches more than 1000 ℃ (the working temperature of the heating body of the traditional HNB generally does not exceed 400 ℃), the overburning of the aerosol forming medium can not be caused, and even the suction taste can be greatly improved; meanwhile, in a high-temperature working state, the preheating time is greatly reduced, and the experience of consumers is greatly improved.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic exploded view of an aerosol-generating device according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of the heat generating component of the aerosol generating device of FIG. 1;

FIG. 3 is a first longitudinal cross-sectional view of the heat generating assembly shown in FIG. 2;

FIG. 4 is a second longitudinal cross-sectional view of the heat generating assembly shown in FIG. 2;

FIG. 5 is a third longitudinal cross-sectional view of the heat generating assembly shown in FIG. 2;

FIG. 6 is an exploded view of the heat generating component of FIG. 2;

FIG. 7 is a schematic view of the bottom structure of the heat generating component of FIG. 2;

FIG. 8 is a transverse cross-sectional view of the heat-generating body of the heat-generating component shown in FIG. 6;

fig. 9 is a transverse sectional view of a heat generating body of an aerosol-generating device in a second embodiment of the utility model;

fig. 10 is a transverse cross-sectional view of a heat generating body of an aerosol-generating device in a third embodiment of the utility model.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings.

Fig. 1 shows a first embodiment of the aerosol-generating device of the utility model. The aerosol generating device 100 can heat the aerosol forming substrate in a low-temperature heating non-combustion mode, and has good atomization stability and good atomization taste. In some embodiments, the aerosol-forming substrate may be provided on the aerosol-generating device 100 in a pluggable manner, the aerosol-forming substrate may be cylindrical, in particular, the aerosol-forming substrate may be a strip-shaped or sheet-shaped solid material made of leaves and/or stems of plants, and aroma components may be further added to the solid material.

As shown in fig. 1 and 2, further, in the present embodiment, the aerosol generating device 100 includes a heat generating component 10 and a power supply component 20, the power supply component 20 includes a power supply housing 21, the heat generating component is accommodated in the power supply housing 21, and can be partially inserted into an aerosol-forming substrate, specifically, can be partially inserted into a medium section of the aerosol-forming substrate, and generates infrared radiation in an energized state to heat the medium section of the aerosol-forming substrate, so as to atomize the aerosol. The heating component 10 has the advantages of simple assembly, simple structure, high atomization efficiency, high stability and long service life. The power supply assembly 20 is mechanically and/or electrically connected to the heat generating assembly 10 for supplying power to the heat generating assembly 10.

In the present embodiment, the heat generating component 10 includes a heat generating structure 11 and a support base 12, and the heat generating structure 11 is mounted on the support base 12. In this embodiment, the heat generating structure 11 and the supporting seat 12 are detachably installed, so as to facilitate replacement and maintenance of the heat generating structure 11. The supporting seat 12 can be mechanically and electrically connected with the heating structure 11, not only can support the heating structure 11, but also can be electrically connected with the heating structure 11 in a state that the heating structure 11 is mounted thereon, so as to electrically connect the heating structure 11 with the power supply assembly 20. It will be appreciated that in other embodiments, the support base 12 may serve merely as a support.

As shown in fig. 3 to 5, in the present embodiment, the heat generating structure 11 includes a sleeve 111, and a heat generating body 112. The sleeve 111 is at least partially inserted into the supporting seat 12 and covers at least part of the heating element 112, and is capable of transmitting light waves to the aerosol-forming substrate, and in this embodiment, the sleeve 111 is capable of transmitting infrared light waves, so that the heating element 112 can radiate heat to heat the aerosol-forming substrate. Specifically, in this embodiment, the whole heating element 112 is disposed at intervals between the wall of the sleeve 111, an air gap is reserved between the inner wall of the sleeve 111 and the heating element 112, in the electrified state, the temperature of the heating element 1-3s is rapidly raised to 1000-1300 ℃, the surface temperature of the sleeve 111 can be controlled below 350 ℃, the atomization temperature of the whole aerosol forming matrix is controlled at 300-350 ℃, and the aerosol forming matrix is precisely atomized mainly in the 2-5um wave band. The highest working temperature of the heating element is 500-1300 ℃, which is far higher than that of the heating element in the prior art.

In this embodiment, the sleeve 111 may be a quartz glass tube. Of course, it will be appreciated that in other embodiments, the sleeve 111 is not limited to a quartz tube, and may be other window materials transparent to light waves, such as infrared-transparent glass, transparent ceramics, diamond, and the like.

As shown in fig. 6 to 8, in the present embodiment, the sleeve 111 is hollow and tubular, and specifically, the sleeve 111 includes a tubular body 1111 having a circular cross section, and a peak structure 1112 provided at one end of the tubular body 1111. Of course, it will be appreciated that in other embodiments, the cross-section of the tubular body 111 is not limited to being circular. The tubular body 1111 has a hollow structure with an opening 1110 at one end. The pointed structure 1112 is disposed at an end of the tubular body 1111 away from the opening 1110, and at least a portion of the heating structure 111 is conveniently inserted into the aerosol-forming substrate by disposing the pointed structure 1112. In this embodiment, the inside of the sleeve 111 is formed with a receiving cavity 1113, the receiving cavity 1113 is a cylindrical cavity, and can be unsealed, the air in the receiving cavity 1113 can be communicated with the atmosphere outside the apparatus, and when the heating element 112 is installed therein, the receiving cavity 1113 can be filled with inert gas or without vacuumizing. In this embodiment, the sleeve 111 further includes a positioning portion 1114, where the positioning portion 1114 is disposed at the opening 1110 of the tubular body 111, and can extend outward along the radial direction of the tubular body 111 to form a positioning flange for mounting and positioning the sleeve 111 and the support base 12. In this embodiment, the locating portion 1114 may be integrally formed with the tubular body 111. Of course, it will be appreciated that in other embodiments, the retainer 1114 may be removably mounted with the sleeve 111, such as by a socket, screw or snap fit. In this embodiment, an air gap is left between the inner wall of the sleeve 111 and the heating element 112, and the air gap can be filled with air. By providing an air gap, direct contact between the sleeve 111 and the heating element 112 can be prevented.

In this embodiment, the heating element 112 may be one heating element, may be provided in a longitudinal direction, and may be formed into a heating portion 1120 having a spiral shape as a whole by winding. Specifically, the heating element 112 may be cylindrical in shape as a whole, and may be wound to form a single spiral structure, a double spiral structure, an M-shaped structure, an N-shaped structure, or other shaped structures. Of course, it is understood that in other embodiments, the heating element 112 is not limited to one, and may be two, or more than two. The shape of the heat-generating body 112 is not limited to being cylindrical, and in some embodiments, the shape of the heat-generating body 112 may be sheet-like.

In this embodiment, the heat generating portion 1120 may be disposed in the sleeve 111 and spaced from the inner wall of the sleeve 111, for generating infrared radiation, i.e. infrared light waves, in the energized state, which may penetrate through the sleeve 111 to the aerosol-forming substrate. In this embodiment, the heat generating portion 1120 may be a long spiral. Of course, it is understood that in other embodiments, the heat generating portion 1120 is not limited to being helical.

In the present embodiment, an electrically conductive portion 1121 is disposed at one end of the heat generating portion 1120, and the electrically conductive portion 1121 is connected to the heat generating portion 1120, can be led out from the opening 1110 of the sleeve 111, and is electrically connected to the power supply assembly 20 by penetrating from the base 113. In the present embodiment, the conductive portion 1121 may be fixed to the heat generating portion 1120 by welding to form an integral structure. Of course, it is understood that in other embodiments, the heat generating portion 1120 may be integrally formed with the conductive portion 1121. In this embodiment, the number of the conductive parts 1121 may be two, and the two conductive parts 1121 may be disposed at intervals, and connected to two ends of the heat generating part 1120, respectively, and extend toward the same end, and are disposed through the sleeve 111 from the opening 1110 at one end of the sleeve 111. In this embodiment, the conductive portion 1121 may be a lead wire, which may be soldered with the heat generating portion 1120. Of course, it is understood that in other embodiments, the conductive portion 1121 is not limited to be a lead, and may be other conductive structures. By arranging the conductive portion 1121 at one end of the heat generating portion 1120 and then leading out from the sleeve 111, the whole heat generating structure 11 can be assembled conveniently, the assembly process is simplified, and the heat generating structure 11 can be mounted on the supporting seat 12 and then contacted with the conductive member 124 in the supporting seat 12 during assembly.

In the present embodiment, the heat generating body 112 forming the heat generating portion 1120 includes a heat generating base 1122 and an infrared radiation layer 1124. The heat generating body 1122 can generate heat in an energized state. The infrared radiation layer 1124 is provided on the outer surface of the heat generating body 1122, and is excited by the heat generating body 1122 to radiate infrared light waves. In the present embodiment, the heat generating body 1122 and the infrared radiation layer 1124 are concentrically arranged in the cross section of the heat generating portion 1120.

In this embodiment, the heat generating base 1122 may have a cylindrical shape as a whole, and specifically, the heat generating base 1122 may be a heating wire. Of course, it is understood that in other embodiments, the heat generating substrate 1122 may not be limited to being cylindrical, and may be sheet-like, i.e., the heat generating substrate 1122 may be a heat generating sheet. The heat generating substrate 1122 includes a metal substrate, which may be a wire, having high temperature oxidation resistance. Specifically, the heating matrix 1122 may be a metal material with good high-temperature oxidation resistance, high stability, and difficult deformation, such as a nichrome matrix (e.g., nichrome wire) or an iron-chromium-aluminum alloy matrix (e.g., iron-chromium-aluminum alloy wire). In this embodiment, the radial dimension of the heat generating substrate 1122 may be 0.15mm to 0.8mm.

In the present embodiment, the heat-generating body 112 further includes an oxidation resistant layer 1123, the oxidation resistant layer 1123 being formed between the heat-generating base 1122 and the infrared radiation layer 1124. Specifically, the oxidation resistant layer 1123 may be an oxide film, and the heat generating substrate 1122 is subjected to a high temperature heat treatment to form a dense oxide film on its own surface, and the oxide film forms the oxidation resistant layer 1123. Of course, it is understood that in other embodiments, the oxidation resistant layer 1123 is not limited to include a self-formed oxide film, and in other embodiments, it may be an oxidation resistant coating applied to the outer surface of the heat-generating substrate 1122. By forming the antioxidation layer 1123, the heating substrate 1122 is prevented from being heated or rarely oxidized in the air environment, the stability of the heating substrate 1122 is improved, and further, the accommodating cavity 1113 is not required to be vacuumized, filled with inert gas or reducing gas, the opening 1110 is not required to be plugged, the assembly process of the whole heating structure 11 is simplified, and the manufacturing cost is saved. In this embodiment, the thickness of the oxidation resistant layer 1123 may be selected to be 1um to 150um. When the thickness of the oxidation preventing layer 1123 is less than 1um, the heat generating substrate 1122 is easily oxidized. When the thickness of the oxidation resistant layer 1123 is greater than 150um, heat conduction between the heat generating substrate 1122 and the infrared radiation layer 1124 is affected.

In this embodiment, the infrared radiation layer 1124 may be an infrared layer. The infrared layer may be an infrared layer forming substrate formed on a side of the oxidation resistant layer 1123 remote from the heat generating substrate 1122 under high temperature heat treatment. In this embodiment, the infrared layer forming matrix may be a silicon carbide, spinel or composite type matrix thereof. Of course, it is to be understood that in other embodiments, the infrared radiation layer 1124 is not limited to being an infrared layer. In other embodiments, the infrared radiation layer 1124 can be a composite infrared layer. In this embodiment, the infrared layer may be formed on the side of the antioxidant layer 1123 away from the heat generating substrate 1122 by dip coating, spray coating, brush coating, or the like. The thickness of the infrared radiation layer 1124 may be 10um-300um, and when the thickness of the infrared radiation layer 1124 is 10um-300um, the heat radiation effect is better, so that the atomization efficiency and the atomization taste of the aerosol-forming substrate are better. Of course, it is understood that in other embodiments, the thickness of the infrared radiation layer 1124 is not limited to 10um-300um.

In this embodiment, the heat generating component 11 further includes an insulating member 113, and the insulating member 113 has a cylindrical shape, and a radial dimension of the insulating member 113 may be smaller than a radial dimension of the accommodating cavity 1113. The insulating member 113 may be completely or partially inserted into the accommodating cavity 1113 from the opening 1110 of the sleeve 111, so as to separate the two conductive portions 1121, i.e., to insulate the two conductive portions 1121. In this embodiment, the insulating member 113 is provided with two through holes 1131, the two through holes 1131 are disposed in one-to-one correspondence with the two conductive portions 1121, and the through holes 1131 can extend along the axial direction of the insulating member 113 for the conductive portions 1121 to penetrate out and be electrically connected with the supporting base 12. In some embodiments, the insulating member 113 may not be limited to be cylindrical, and in some embodiments, the insulating member 113 may be an insulating spacer, and the through hole 1131 may be omitted. In some embodiments, the insulator 113 may be a ceramic body, a quartz tube, or other insulating structure.

As shown in fig. 3 to 7, in the present embodiment, the support base 12 can support the sleeve 111 and the heat generating portion 1120, and includes a bracket 121, a housing 122, and a sealing member 123. The support 121 is used for supporting the heat generating structure 11. The housing 122 may be sleeved on the outer circumference of the bracket 121. The seal 123 may be mounted to the support 121 for sealing engagement of the heat generating structure 11 with the support 121 and the housing 122.

In this embodiment, the bracket 121 includes a first frame 121a and a second frame 121b that are configured to be opened and closed. By opening and closing the first frame 121a and the second frame 121b, the heat generating structure 11 can be easily assembled and disassembled. In some embodiments, the first frame 121a and the second frame 121b may be spliced to form a rectangular parallelepiped structure. Of course, it is understood that in other embodiments, the first frame 121a and the second frame 121b are not limited to be rectangular, and in other embodiments, the first frame 121a and the second frame 121b may be cylindrical or have other shapes.

In this embodiment, an end plate 1210 is disposed at one end of the first frame 121a and one end of the second frame 121b, a partition 1212 is correspondingly disposed in each of the first frame 121a and the second frame 121b, the partition 1212 divides the frame 121 into an upper space and a lower space, a space disposed near the end plate 1210 is formed in a clamping groove 1211 matched with the sealing member 123, a semi-cylindrical first avoiding hole 1216 is disposed on the partition 1212, two partition 1212 of the first frame 121a and the second frame 121b are disposed opposite to each other, and the first avoiding hole 1216 is spliced to form a first via hole for the heat generating structure 11 to penetrate.

In the present embodiment, the bracket 121 further includes a bottom wall 1213, and the bottom wall 1213 is disposed on the first bracket 121a, however, it will be understood that in other embodiments, the bottom wall 1213 is not limited to be disposed on the first bracket 121a, but may be disposed on the second bracket 121b.

In the present embodiment, a partition 1215 is disposed in the support base 12, specifically, the partition 1215 is convexly disposed in the bottom wall 1213 and is integrally formed with the bottom wall 1213, which may be a rib plate for separating two conductive portions 1121 disposed adjacently and insulating the two conductive portions 1121.

In this embodiment, the first frame 121a and the second frame 121b perform limiting on the heating structure 11, the limiting baffle 1216 is disposed below the partition 1212 and is spaced from the partition 1212, a semi-cylindrical second avoiding hole 1217 is disposed on the limiting baffle 1216, and when the first frame 121a and the second frame 121b are combined, two second avoiding holes 1217 on the two limiting baffles 1216 are combined to form a second through hole, the second through hole is used for the heating structure 11 to pass through, and the radial dimension of the second through hole is smaller than the radial dimension of the positioning portion 1114 at one end of the sleeve 111, so as to be matched with the positioning portion 1114 to position the heating structure 11.

In this embodiment, the housing 122 may be sleeved on the outer periphery of the bracket 121 after the heat generating structure 11 is assembled with the bracket 121, so as to fix the first bracket 121a and the second bracket 121b, so that the heat generating structure 11 and the supporting seat 12 form an integrated structure. In this embodiment, the shape and size of the housing 122 can be adapted to the stand 121. In the present embodiment, the housing 122 is substantially rectangular and has a hollow structure with a socket 1221 at one end. A gap 1220 is left between the socket 1221 and the bottom wall 1213, so as to prevent condensate formed by condensation of the aerosol remaining in the power supply shell 21 from affecting the normal operation of the heating structure 11.

In this embodiment, the housing 122 is detachably connected to the bracket 121. Specifically, in the present embodiment, the connection structure 125 is disposed on the housing 122 and the bracket 121, and the housing 122 and the bracket 121 are detachably connected through the connection structure 125. In this embodiment, the connection structure 125 includes a snap hole 1222 and a snap catch 1214. The two latches 1214 are disposed on the outer side walls of the first frame 121a and the second frame 121b in a one-to-one correspondence manner, and the latches 1214 are disposed on the outer side walls of the first frame 121a and the second frame 1214. The two clamping holes 1222 are disposed on the side wall of the housing 122, and the two clamping holes 1222 are disposed in one-to-one correspondence with the two buckles 1214, when the housing 122 is assembled with the bracket 121, the buckles 1214 can be clamped into the clamping holes 1222, so as to connect and fix the housing 122 with the bracket 121.

In this embodiment, a blocking wall 1223 is disposed on a side of the housing 122 opposite to the socket 1221, and a through hole 1224 is disposed on the housing 122, specifically, the through hole 1224 is disposed on the blocking wall 1223 and is capable of allowing the heating structure 11 to partially pass through.

In this embodiment, the sealing member 123 is detachably disposed between the first frame 123a and the second frame 123b, and the sealing member 123 is detachably sleeved on the heat generating structure 11, specifically, it may be sleeved on the outer periphery of a part of the sleeve 111, for sealing and connecting the heat generating structure 11 with the first frame 121a and the second frame 121b. In this embodiment, the sealing member 123 may be a silicone member, which is used to prevent vibration and damage when the sleeve 111 is assembled with the bracket 121. Of course, it will be appreciated that in other embodiments, the seal 123 is not limited to being a silicone member.

In this embodiment, the sealing member 123 has a hollow structure with two ends penetrating, and a channel 1230 is formed on the inner side, and the channel 1230 is used for the sleeve 11 to pass through. In the present embodiment, the sealing member 123 includes a sleeve body 1231, a first sealing portion 1232, and a second sealing portion 1233. The sleeve body 1231 is cylindrical and has a hollow structure with two ends penetrating, and is used for being sleeved on a part of the heating structure 11. The first sealing portion 1232 and the second sealing portion 1233 are disposed on the outer sidewall of the sleeve body 1231 in a protruding manner, and are disposed along the axial direction of the sleeve body 1231 at intervals. The first sealing portion 1232 may be disposed along a circumferential direction of the sleeve body 1232 and may have a substantially circular shape. The first sealing part 1232 is fastened to the first frame 121a and the second frame 121b, respectively. Specifically, the first sealing portion 1232 can be respectively locked into the locking grooves 1211 of the first frame 121a and the second frame 121b. The second sealing portion 1233 is disposed on the outer sidewall of the sleeve body 1231 in a protruding manner, and has a substantially circular shape, and a radial dimension larger than that of the first sealing portion 1232. The second sealing portion 1233 may be disposed on a side of the end wall 1210 of the first frame 121a and the second frame 121b opposite to the clamping groove 1211. In the assembled state of the housing 12 and the bracket 121, the second sealing portion 1233 is located between the housing 122 and the bracket 121, specifically, between the blocking wall 1223 and the end wall 1210, for sealing the gap formed between the bracket 121 and the end face of the through hole 1224. In this embodiment, the sleeve body 1231, the first sealing portion 1232 and the second sealing portion 1233 are integrally formed to form a multi-channel sealing structure, that is, by providing the sealing member 123, the sealing among the housing 122, the heating structure 11 and the support 121 can be achieved, so that the sealing process can be simplified, the manufacturing cost can be saved, and condensate can be prevented from flowing into the support 121.

In the present embodiment, a plurality of conductive members 124 are disposed on the supporting base 12, and specifically, the conductive members 124 are disposed in one-to-one correspondence with the conductive portions 1121. Of course, it will be appreciated that in other embodiments, the conductive member 124 may be one. The conductive member 124 may be an electrode column. The plurality of conductive members 124 are disposed on the bottom wall 1213 at intervals and detachably connected to the conductive portion 1121. Specifically, in a state that the heat generating structure 11 is mounted on the supporting base 12, the conductive portion 1121 may be wound on the conductive member 124 and electrically connected to the conductive member 124. In the present embodiment, the conductive member 124 can be in conductive connection with the power source in the power supply assembly 20 through contact, so as to electrically connect the heat generating structure 11 with the power supply assembly 20, and facilitate replacement of the heat generating body 122 when the heat generating body 112 reaches the service life. In this embodiment, the conductive members 124 are two groups, one group is electrically connected to the heat generating structure 11, and the other group is electrically connected to the temperature measuring structure 13. Of course, it should be understood that in other embodiments, the conductive elements 124 may be combined, and the heat generating structure 11 and the temperature measuring structure 13 may share the conductive elements 124.

In this embodiment, the heat generating component 10 further includes a temperature measuring structure 13, and the temperature measuring structure 13 is disposed on the heat generating structure 11 and can be detachably connected to the supporting seat 12. In this embodiment. The temperature measuring structure 13 can be sleeved on the outer periphery of a part of the section of the sleeve 111, and can be detachably connected with the conductive piece 124 in the supporting seat 12, and can realize conductive connection when being connected with the conductive piece. In this embodiment, the temperature measuring structure 13 is sleeved at a position on the sleeve 111 corresponding to the connection position between the heating portion 1120 and the conductive portion 1121, and includes a temperature measuring film 131 and two leads 132, the temperature measuring film 131 can be sleeved on the outer sidewall of the sleeve 111, the two leads 132 are spaced apart, one ends of the two leads 132 are connected with the temperature measuring film 131, the other ends of the two leads are connected with the conductive members 132 in the supporting base 12, and the two leads can be wound on the corresponding conductive members 132 to perform electrical connection and signal penetration. In some embodiments, the leads 132 may be welded or crimped to the thermometric film 131.

When the heating component 10 is assembled, the temperature measuring structure 13 can be sleeved on the periphery of the sleeve 111, and then the sealing element 123 is sleeved on the sleeve 111 of the heating structure 11; the first frame 121a is clamped to the first sealing portion 1232 of the sealing member 123, then the conductive portion 1121 of the heat generating structure 11 and the lead 132 of the temperature measuring structure 13 are wound around the corresponding conductive member 124, the second frame 121b is clamped to the second sealing portion 1232, and finally the integral structure formed by the bracket 121 and the heat generating structure 11 penetrates from the socket 1221 of the housing 122, so that the second sealing portion 1233 abuts against the blocking wall 1223 of the housing 122 and the end wall 1210 of the bracket 121, and the sealing member 123 and the heat generating structure 11 partially penetrate out of the through hole 1224, and meanwhile, the buckle 1214 on the outer side of the bracket 121 is clamped into the buckling hole 1221 of the housing 122. If the heat generating structure 11 needs to be removed, the housing 122 may be pushed out toward the direction in which the heat generating structure 11 is provided with the peak structure 1112, and then the first frame 121a and the second frame 121b may be separated from the sealing member 123, and the connection between the conductive portion 1121 and the lead 132 of the temperature measuring structure 13 and the conductive member 124 may be released.

Fig. 9 shows a second embodiment of the aerosol-generating device of the utility model, which differs from the first embodiment in that the infrared radiation layer 1124 is a composite infrared layer, which may be formed by compositing an infrared layer-forming substrate with a binder for bonding with the oxidation-resistant layer 1123, in particular, the binder may be glass frit, and the composite infrared layer may be a glass frit composite infrared layer. The glass powder is adopted, so that the glass powder can be melted at high temperature, the antioxidation layer 1123 is combined with the infrared layer forming matrix, and gaps of the infrared layer forming matrix can be blocked, so that the breakdown resistance function is further improved. The glass powder composite infrared layer can be prepared by adding glass powder into an infrared layer forming matrix (such as silicon carbide or spinel) and compounding, then coating the glass powder on one side of an oxidation resistant layer 1123 far away from a heating matrix 1122 in a dip-coating, spray-coating, brush-coating and other modes, performing heat treatment for 30min through a tunnel furnace, then placing the glass powder into a heating furnace, heating to 1000-1200 ℃ for 2h, and then cooling to room temperature along with the furnace.

Fig. 10 shows a third embodiment of the aerosol-generating device of the present utility model, which differs from the first embodiment in that the heat-generating body 112 further comprises a bonding layer 1125 disposed between the antioxidation layer 1123 and the infrared radiation layer 1124, the bonding layer 1125 being operable to prevent local breakdown of the heat-generating substrate 1122, further improving the bonding force of the antioxidation layer 1123 and the infrared radiation layer 1124. In some embodiments, the bond in the bond layer 1125 may be a glass frit, i.e., the bond layer 1125 may be a glass frit layer.

In some embodiments, a bond may also be incorporated into the infrared radiation layer 1124, and the bonding layer 1125 may be a glass frit that has a melting point greater than the melting point of the glass frit in the infrared radiation layer 1124.

It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (20)

1. A heat generating component, characterized by comprising a heat generating part (1120) generating infrared light wave in an energized state and a sleeve (111) for transmitting the infrared light wave;

the heat generating part (1120) comprises a heat generating substrate (1122), an antioxidation layer (1123) arranged on the outer surface of the heat generating substrate (1122) for preventing the oxidation of the heat generating substrate (1122), and an infrared radiation layer (1124) arranged on one side of the antioxidation layer (1123) far from the heat generating substrate (1122);

a containing cavity (1113) for containing the heating part (1120) and arranged in a non-sealing mode is formed in the sleeve (111), and at least part of the heating part (1120) is arranged in a clearance mode with the wall of the sleeve (111).

2. The heat generating component of claim 1, wherein the oxidation resistant layer (1123) comprises an oxide film formed on an outer surface of the heat generating substrate (1122).

3. The heat generating component of claim 1, wherein the thickness of the oxidation resistant layer (1123) is 1um to 150um.

4. The heat generating assembly according to claim 1, wherein the sleeve (111) comprises a hollow tubular body (1111);

the housing cavity (1113) is formed in the tubular body (1111);

an opening (1110) is provided at one end of the tubular body (1111).

5. The heat generating assembly as recited in claim 4, wherein the heat generating portion (1120) has two electrically conductive portions (1121) connected thereto; both of the conductive portions (1121) protrude from the opening (1110).

6. The heating assembly according to claim 4, wherein the sleeve (111) comprises a pointed structure (1112), the pointed structure (1112) being arranged at an end of the tubular body (1111) remote from the opening (1110).

7. The heat generating assembly as recited in claim 5, further comprising an insulating member (113) provided at least partially in the sleeve (111) to insulate the two conductive portions (1121).

8. The heat generating assembly as recited in claim 5, further comprising a support base (12) supporting the heat generating portion (1120) and the sleeve (111); the sleeve (111) is at least partially inserted into the supporting seat (12);

a conductive member (124) connected to the conductive portion (1121) is provided in the support base (12).

9. The heat generating assembly as recited in claim 8, characterized in that the support base (12) comprises a bracket (121) supporting the sleeve (111) and a seal (123);

the sealing member (123) is sleeved on a part of the sleeve (111) and seals a gap between the inner wall of the bracket (121) and the outer wall of the sleeve (111).

10. The heat generating component according to claim 9, wherein the sealing member (123) has a hollow structure having both ends penetrating therethrough, and a passage (1230) through which the sleeve (111) is inserted is formed on the inner side.

11. The heat generating component according to claim 10, wherein the sealing member (123) includes a sleeve body (1231) having both ends penetrating therethrough for being fitted over a part of the sleeve (111), and a first sealing portion (1232) protruding from an outer side wall of the sleeve body (1231);

the first sealing part (1232) is clamped and fixed with the bracket (121).

12. The heat generating assembly as recited in claim 11, wherein the support base (12) includes a housing (122) sleeved on an outer periphery of the bracket (121) and having a sleeve interface (1221) mated with the bracket (121);

the bracket (121) comprises a bottom wall (1213), and a gap (1220) is reserved between the sleeve joint (1221) and the bottom wall (1213).

13. The heat generating assembly as recited in claim 12, wherein said housing (122) is detachably sleeved on said bracket (121);

a through hole (1224) is formed in the housing (122).

14. The heat generating component according to claim 13, wherein the sealing member (123) further comprises a sleeve body (1231) having both ends penetrating through and being provided for being sleeved on a part of the sleeve (111), and a second sealing portion (1233) protruding from an outer side wall of the sleeve body (1231); the second sealing part (1233) is positioned between the bracket (121) and the housing (122) in the assembled state of the housing (122) and the bracket (121), and is used for sealing a gap formed between the bracket (121) and the end face of the through hole (1224).

15. The heat generating assembly as recited in claim 1, characterized in that the sleeve (111) is an infrared-transparent glass, a transparent ceramic or diamond.

16. The heat generating assembly as recited in claim 1, wherein the heat generating portion (1120) is entirely spaced from a wall of the sleeve (111).

17. The heat generating assembly as recited in claim 1, wherein the heat generating portion (1120) is provided without direct contact with the sleeve (111).

18. The heat generating component of claim 1, wherein the infrared radiation layer (1124) comprises an infrared layer and/or a composite infrared layer formed by compositing an infrared layer forming matrix with a bond for bonding with the antioxidant layer (1123).

19. The heat generating assembly as recited in claim 1, wherein the heat generating substrate (1122) comprises a metal substrate; the metal matrix comprises a nichrome matrix or an iron-chromium-aluminum alloy matrix.

20. An aerosol-generating device, characterized in that it comprises a heat generating component (10) according to any one of claims 1 to 19.