CN220044939U

CN220044939U - Aerosol generating device, heating component and heating structure

Info

Publication number: CN220044939U
Application number: CN202321106724.5U
Authority: CN
Inventors: 张国; 马磊; 张幸福; 方日明; 周宏明; 李日红; 褚庆臣
Original assignee: Seymour International Holdings Ltd
Current assignee: Seymour International Holdings Ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-11-21
Anticipated expiration: 2033-05-09

Abstract

The utility model relates to an aerosol generating device, a heating component and a heating structure, wherein the heating structure comprises a heating element, a tube body and a mounting piece; the pipe body is provided with a pipe orifice; the mounting piece is assembled with one end of the pipe body, which is provided with the pipe orifice; the heating element comprises a heating part and a conductive part; the heating part is arranged in the pipe body and is at least partially spaced from the pipe wall of the pipe body so as to radiate infrared light to pass through the pipe body and then heat the aerosol generating substrate; the conductive part is arranged on the mounting piece in a penetrating way and is connected with the heating part so as to fix the heating element on the mounting piece. The heating structure is characterized in that the upper conductive part of the heating element is arranged on the mounting part in a penetrating manner and is connected with the heating part, so that the heating element is fixed on the mounting part, the heating element can be conveniently installed and positioned, the heating element can be stably fixed in the pipe body, and the convenience of assembling the heating structure and the stability of the heating structure are improved.

Description

Aerosol generating device, heating component and heating structure

Technical Field

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

Background

In the field of heating without combustion atomization, a central heating structure or a peripheral heating structure is generally adopted to heat an aerosol generating substrate, the heating structure in the related art can generally comprise a shell and a heating element, the heating element is generally directly arranged in the shell, radiant light waves can be generated after the heating element is electrified to penetrate through the shell so as to heat an aerosol generating substrate, the shell is used for isolating the heating element and penetrating the radiant light waves, the assembly difficulty of the heating element in the shell is high in the prior art, the assembly of the heating element is unstable, the temperature field distribution of the whole heating element is influenced, the suction taste is inconsistent, and the problem of how to stably assemble the heating element in the shell is currently required to be solved.

Disclosure of Invention

The utility model aims to provide an improved aerosol generating device, a heating component and a heating structure.

The technical scheme adopted for solving the technical problems is as follows: a heating structure is constructed, which comprises a heating element, a tube body and a mounting piece;

the pipe body is provided with a pipe orifice;

the mounting piece is assembled with one end of the pipe body, which is provided with the pipe orifice;

The heating element comprises a heating part and a conductive part; the heating part is arranged in the pipe body and is at least partially spaced from the pipe wall of the pipe body so as to radiate infrared light to pass through the pipe body and then heat the aerosol generating substrate; the conductive part is arranged on the mounting piece in a penetrating way and is connected with the heating part so as to fix the heating element on the mounting piece.

In some embodiments, the mounting member is provided with a channel through which the conductive part passes; the heating element portion is fixed to an end face of the passage provided toward the heating portion, and/or the heating element portion is fixed to at least part of an inner wall of the passage.

In some embodiments, the heating element includes a first direction and a second direction perpendicular to the first direction, wherein the second direction is a penetrating direction in which the conductive portion is penetrated through the channel;

the dimension of the conductive part near one end of the heat generating part in the first direction is larger than or equal to the dimension of the channel in the first direction, or the dimension of the heat generating part near one end of the conductive part in the first direction is larger than or equal to the dimension of the channel in the first direction.

In some embodiments, the mounting member is provided with a channel through which the conductive portion passes and has a first end at or near the orifice and a second end opposite the first end;

each of the channels extends from the second end to the first end;

one end of the conductive part, which is close to the heating part, is provided with a connecting part connected with the heating part; the connecting portion is fixed to the second end.

In some embodiments, the cross-sectional area of the connection is greater than or equal to the cross-sectional area of the channel.

In some embodiments, the cross-sectional area of the connection is 0.07mm ² ～0.8mm ² The cross-sectional area of the channel is 0.03mm ² ～0.28mm ² 。

In some embodiments, the cross-section of the connection has a width of 0.2mm to 1.5mm and the cross-section of the channel has a width of 0.2mm to 0.6mm.

In some embodiments, the mounting member is provided with a through hole or a through slot; the channel is formed in the through hole or the through groove.

In some embodiments, the number of the conductive parts is two, and the two conductive parts are insulated or spaced.

In some embodiments, the mounting member is an insulating member or a surface of the mounting member in contact with the conductive portion is provided with an insulating structure;

The two conductive parts are arranged in an insulating way through the mounting piece.

In some embodiments, the mounting member is at least partially inserted into the tube with an interference fit therebetween.

In some embodiments, the tube body includes a pointed tip, and an end of the heat generating portion remote from the conductive portion is in interference fit or contact with a portion of an inner wall of the pointed tip.

In some embodiments, the end of the heat generating portion near the peak portion has a maximum radial dimension or width dimension of the heat generating portion.

In some embodiments, the heat generating portion comprises a spiral segment, and a radial or width dimension of an end of the heat generating portion proximate the peak portion is less than or equal to a maximum radial dimension of the spiral segment.

In some embodiments, the heating portion includes a spiral section near the peak portion, one end of the spiral section near the peak portion includes a bending portion or an annular portion, a distance between the bending portion or the annular portion and the adjacent spiral section is larger than a pitch of the spiral section, and the spiral section far from the bending portion or the annular portion is spaced from an inner wall of the pipe body.

In some embodiments, the heat generating portion includes a spiral section near the tip portion, one end of the spiral section near the tip portion includes a tip or flat portion, the width of the tip or flat portion is smaller than the outer diameter of the spiral section, the tip or flat portion abuts against the inner wall of the tip portion, and the spiral section far from the tip or flat portion is spaced from the inner wall of the tube body.

In some embodiments, the heat generating portion includes a spiral section near the peak portion, an end of the spiral section near the peak portion includes a top portion, an axial direction of the top portion is set to be high, and a resistance value of the spiral section adjacent to the top portion at the same height is greater than a resistance value of the top portion.

In some embodiments, the portion of the conductive portion disposed proximate the first end is bent and extends out of one side of the mounting member.

In some embodiments, the outer wall of the tube body is provided with a positioning part for mounting and positioning the heating structure.

In some embodiments, a spacing portion is provided between the heat generating portion and the mounting member for defining a distance between the heat generating portion and the mounting member.

The utility model also constructs a heating component which comprises a bracket and the heating structure arranged on the bracket.

In some embodiments, the bracket is provided with a mounting hole for part of the heating structure to penetrate through;

and a sealing structure is arranged between the outer wall of the heating structure and the inner wall of the mounting hole.

In some embodiments, a limiting structure for limiting the heating structure is arranged in the bracket.

The utility model also constructs an aerosol generating device which comprises the heating structure and a power supply assembly electrically connected with the heating structure.

The aerosol generating device, the heating component and the heating structure have the following beneficial effects: the heating structure is characterized in that the conductive part on the heating element is arranged on the mounting part in a penetrating manner and is connected with the heating part, so that the heating element is fixed on the mounting part, the heating element can be conveniently installed and positioned, the heating element can be stably fixed in the pipe body, and the convenience of assembling the heating structure and the stability of the heating structure are improved.

Drawings

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

fig. 1 is a schematic structural view of an aerosol-generating device according to a first embodiment of the utility model assembled with an aerosol-generating substrate;

FIG. 2 is a cross-sectional view of the aerosol-generating device shown in FIG. 1;

FIG. 3 is a schematic view of the heat generating component of the aerosol generating device of FIG. 2;

FIG. 4 is a cross-sectional view of the heat generating assembly shown in FIG. 3;

FIG. 5 is an exploded view of the heat generating component of FIG. 4;

FIG. 6 is a schematic view of a heat generating structure of the heat generating component of FIG. 5;

FIG. 7 is a cross-sectional view of the heat generating structure shown in FIG. 6;

FIG. 8 is an exploded schematic view of the heat generating structure of FIG. 7;

FIG. 9 is a schematic diagram showing the structure of a heating element of a heating structure in an aerosol generating device according to a second embodiment of the present utility model;

FIG. 10 is a schematic view showing a heat generating element of a heat generating structure in an aerosol generating device according to a third embodiment of the present utility model;

fig. 11 is a schematic view showing a structure of a heating element of a heating structure in an aerosol generating device according to a fourth embodiment of the present utility model;

fig. 12 is a schematic view showing a structure of a heating element of a heating structure in an aerosol generating device according to a fifth embodiment of the present utility model.

Reference numerals illustrate: 100. an aerosol generating device; 200. an aerosol-generating substrate; 10. a heating component; 20. a power supply assembly; 30. a housing; 40. an extractor; 11. a heating structure; 111. a tube body; 111a, a columnar body; 111b, a pointed top; 1110. a cavity; 1111. a pipe orifice; 112. a heating element; 1120. a heating element; 1121. a heating part; 1122. a conductive portion; 1123. a connection part; 1124. a helical section; 1125. an annular portion; 1126. a bending part; 113. a mounting member; 113a, a first end; 113b, a second end; 1131. a channel; 114. a positioning part; 12. a bracket; 121. a bracket body; 1210. a receiving chamber; 122. a support wall; 123. a mounting hole; 13. a base; 131. a bottom wall; 132. a limit structure; 1321. a limit boss; 14. and (5) a sealing structure.

Detailed Description

Fig. 1 and 2 show a first embodiment of the aerosol-generating device of the present utility model. The aerosol-generating device 100 can heat the aerosol-generating substrate 200 by a heating non-combustion mode, and has good atomization stability and good atomization taste. In this embodiment, the aerosol-generating substrate 200 may be removably disposed on the aerosol-generating device 100, and the aerosol-generating substrate 200 may be cylindrical, specifically, the aerosol-generating substrate may be a solid material in the form of a filament, a sheet, or an integral molding made of leaves and/or stems of plants (e.g., tobacco), and an aroma component may be further added to the solid material.

As shown in fig. 1 and 2, in the present embodiment, the aerosol-generating device 100 includes a heat generating component 10, a power supply component 20, and a housing 30, and the heat generating component 10 may be partially inserted into the aerosol-generating substrate 200, specifically, may be partially inserted into a medium section of the aerosol-generating substrate 200, and radiate infrared light to heat the medium section of the aerosol-generating substrate 200 in an energized state, so as to atomize and generate an aerosol. The heating component 10 has the advantages of simple assembly, simple structure, high atomization efficiency, strong consistency and stability and long service life. The power supply assembly 20 is used to supply power to the heat generating assembly 10. The case 30 may house the power supply assembly 20 and may be assembled with the heat generating assembly 10. In this embodiment, the aerosol-generating device 100 comprises an extractor 40, which extractor 40 is mountable with the heat generating component 10 for housing the aerosol-generating substrate 200.

As shown in fig. 3 to 8, further, in the present embodiment, the heat generating component 10 includes a heat generating structure 11 and a bracket 12. The heat generating structure 11 is arranged on the support 12 and is at least partly insertable into the aerosol-generating substrate 200 for heating the aerosol-generating substrate 200 by radiating infrared light. The heat generating structure 11 may be inserted in the axial direction of the aerosol-generating substrate 200 and may be located at the central axis of the aerosol-generating substrate 200. It will be appreciated that in other embodiments, the heat generating structure 11 may also be fitted around the periphery of the aerosol-generating substrate 200 and radiate infrared light towards the aerosol-generating substrate 200. The bracket 12 is used for mounting and fixing the whole heating structure 11, and plays a role in supporting the heating structure 11. In this embodiment, the bracket 12 may be omitted.

In the present embodiment, the heat generating structure 11 includes a tube 111 and a heat generating element 112. In this embodiment, the tube 111 is covered on at least part of the heating element 112 and is capable of transmitting light waves into the aerosol-generating substrate 200, and in this embodiment, the tube 111 is capable of transmitting infrared light, so that the heating element 112 can be conveniently heated by infrared radiation of the aerosol-generating substrate 200. In the present embodiment, the heating element 112 is partially disposed in the tube 111 for radiating infrared light, which passes through the tube 111 into the aerosol-generating substrate 200. In the energized state, the heating element 112 can be rapidly heated to about 1000 ℃ through 1-3s, the surface temperature of the tube body 111 can be controlled to about 350 ℃, and the atomization temperature of the aerosol-generating substrate 200 is controlled to 300-350 ℃, so that the aerosol-generating substrate 200 can be accurately atomized in the wave bands of 2-4.75um and 8-11 um. The maximum operating temperature of the heating element 112 of the present utility model is 500 deg.c-1300 deg.c, which is far higher than that of the prior art heating element. In this embodiment, the pipe body is a pipe body having a circular cross-sectional shape at any position (in other embodiments, the pipe body may be a flat plate shape, a triangular prism shape, or other shapes). It should be noted that the heating rate can be adjusted according to the habit of the user or other requirements, for example, the heating rate is increased to about 1000 ℃ for 1-3 seconds, so that the requirement of plug-and-smoke extraction can be met, and the prior art is not required to wait for about 15 seconds. In addition, in some embodiments, the surface temperature of the tube 111 may reach 550 ℃ during the preheating process, which may be the local maximum temperature of the tube 111, with a relatively short duration, and with a relatively low heat capacity, the temperature decrease is also relatively fast, without causing the aerosol-generating substrate to bake out.

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

In this embodiment, the tube 111 has a hollow structure, and in particular, in this embodiment, the cross section of the tube 111 may be substantially circular. Of course, it is understood that in other embodiments, the cross-section of the tube 111 is not limited to being circular, and may be elliptical, square, triangular, or the like. In this embodiment, the tube 111 includes a cylindrical body 111a and a peak 111b, and the cylindrical body 111a may be cylindrical and hollow. It will be appreciated that in other embodiments, the columnar body 111a is not limited to being cylindrical, and may be rectangular or other shapes. The pointed portion 111b is disposed at one end of the cylindrical body 111a, and by disposing the pointed portion 111b, at least part of the heating structure 11 is conveniently inserted into the aerosol-generating substrate 200, the pointed portion 111b may be a cone. In this embodiment, a cavity 1110 is formed inside the tube 111, and the cavity 1110 is a cylindrical cavity and can be non-sealed, so that the cavity 1110 does not need to be vacuumized or filled with inert gas when the heating element 112 is installed therein. In the present embodiment, the tube 111 has a nozzle 1111, and the nozzle 1111 is disposed at an end of the cylindrical body 111a away from the peak 111b and is in communication with the cavity 1110 for accommodating the heating element 112 in the cavity 1110.

In the present embodiment, the heat generating element 112 may include a heat generating portion 1121, two conductive portions 1122, and two connection portions 1123. In this embodiment, the heat generating portion 1121 is disposed in the tube 111 and is at least partially spaced from the tube wall of the tube 111, and is capable of radiating infrared light in an energized state, and the infrared light is capable of penetrating through the tube 111 to the aerosol-generating substrate 200. Specifically, in the present embodiment, the heat generating portion 1121 may be entirely out of contact with the wall of the columnar body 111a, that is, entirely spaced apart from the wall of the columnar body 111 a. Each of the conductive portions 1122 is connected to a connection portion 1123, and is connected to the heat generating portion 1121 through the connection portion 1123. The two conductive portions 1122 are disposed at intervals and are independent or insulated from each other. Both conductive portions 1122 may be led from the tube 111 to be conductively connected to the power supply assembly 20. Each connecting portion 1123 is disposed corresponding to one conductive portion 1122, and is disposed at one end of the conductive portion 1122 near the heat generating portion 1121, for connecting the conductive portion 1122 and the heat generating portion 1121.

In the present embodiment, the heat generating portion 1121 may be substantially columnar, specifically, it may be spirally columnar. It will be appreciated that in other embodiments, the heat generating portion 1121 is not limited to be in a spiral column shape, and in other embodiments, the heat generating portion 1121 may be in a longitudinal sheet shape, or may be in an M-shaped structure, an N-shaped structure, or other shaped structures. The heat generating portion 1121 may be formed by winding at least one elongated heat generating body 1120. Specifically, in the present embodiment, the heat generating body 1120 may be a single heat generating body 1120 that is bent to form both ends and then wound in a single or double spiral winding manner. In this embodiment, the number of the heating elements 1120 may be plural. One end of each of the plurality of heating elements 1120 may be connected to each other, and the heating element 1121 having a single spiral structure, a double spiral structure, an M-shaped structure, an N-shaped structure, or the like may be wound. The heating element may be a wire.

In this embodiment, one end of the heat generating portion 1121 away from the conductive portion 1122 is in interference fit or overlap with a portion of the inner wall of the peak portion 111b, that is, a spacing function can be achieved between one end of the heat generating portion 1121 away from the conductive portion 1122 and the peak portion 111b, so that the heat generating portion 1121 is fixed in the tube body 111 and keeps a spacing with the tube wall of the columnar body 111 a.

In this embodiment, the heating element 1120 may be disposed lengthwise, and the cross section may be substantially circular. Of course, it is understood that in other embodiments, the cross-section of the heat-generating body 1120 is not limited to being circular, and may be square or other shapes. In the present embodiment, the heat generating body 1120 may include a heat generating substrate to be provided with a heat radiation layer thereon. The heating matrix can generate heat in an electrified state, can be a conventional heating wire or a conventional heating sheet, specifically can be a metal wire, and can be a metal material with good high-temperature oxidation resistance, high stability, difficult deformation and the like, such as nickel-chromium alloy (such as nickel-chromium alloy wire), iron-chromium-aluminum alloy (such as iron-chromium-aluminum alloy wire) and the like. The heat radiation layer may be an infrared layer. The infrared layer can be an infrared layer forming matrix which is formed on the heating matrix under high temperature heat treatment and can radiate infrared light, wherein the infrared layer forming matrix can be silicon carbide, spinel or a composite matrix thereof. It will be appreciated that in other embodiments, the heat radiating layer is not limited to an infrared layer. In other embodiments, the heat radiating layer may be a composite infrared layer. In this embodiment, the heating element 1120 may further include an oxidation resistant layer formed between the heating substrate and the heat radiation layer, and in this embodiment, the heating substrate is subjected to a high temperature heat treatment and forms a dense oxide film on its own surface, and the oxidation resistant layer may be formed by the oxide film.

In the present embodiment, the two conductive portions 1122 are disposed at one end of the heat generating portion 1121, and each conductive portion 1122 may be connected to one end of the heat generating portion 1120. The two conductive portions 1122 are provided with insulation therebetween. Each conductive portion 1122 may be provided exiting the nozzle 1111, and a section of each conductive portion 1122 exiting the nozzle 111 may be provided in a bendable manner. In this embodiment, the conductive portion 1122 may be disposed lengthwise, and the conductive portion 1122 may be a lead. Of course, it is understood that in other embodiments, the conductive portions 1122 are not limited to being wires, but may be conductive sheets, pins, or other conductive structures. In the present embodiment, the conductive portion 1122 may be formed in an integral structure with the heat generating portion 1121 by welding. It will be appreciated that in other embodiments, the conductive portion 1122 is not limited to being connected to the heat generating portion 1121 by welding, but may be connected by plugging or other means. By fixing the conductive portions 1122 to the heat generating portion 1121 and drawing the two conductive portions 1122 from the same end of the heat generating portion 1121, the mounting of the heat generating element 112 is facilitated. In this embodiment, the power supply assembly 20 includes two electrodes, and each conductive portion 1122 can be electrically connected to one electrode. In this embodiment, the conductive portion 1122 may be directly welded to the electrode. In other embodiments, the conductive portion 1122 may also be in contact with an electrode, such as where one end of the conductive portion 1122 may be connected to or form a first contact and a second contact may be provided on the electrode, where the first contact may be in contact with the second contact when the heat generating component 10 is assembled with the power supply component 20. By adopting the contact connection, the heating assembly 10 and the power supply assembly 20 can be conveniently assembled in a detachable manner.

In the present embodiment, the connection portion 1123 may be formed integrally with the conductive portion 1122 and the heat generating portion 1121. Specifically, in the present embodiment, the connection portion 1123 may be a solder joint. In other embodiments, the connection 1123 is not limited to a weld, and may be a connection sleeve or other connection structure. In this embodiment, the cross-sectional area of the connecting portion 1123 may be larger than the cross-sectional area of the conductive portion 1122, so as to facilitate positioning and mounting of the heating element 112. In particular, the cross-section of the connecting portion 1123 may be generally circular, it being understood that in other embodiments, the cross-section of the connecting portion 1123 is not limited to being circular, and may be square, oval, or other shapes. In the present embodiment, the cross-sectional area of the connecting portion 1123 is 0.07mm ² ～0.8mm ² (including the end value of 0.07mm ² 、0.8mm ² And any value in between); in this embodiment, the cross-section of the connecting portion 1123 may have a width of 0.2mm to 1.5mm (including the end values of 0.2mm, 1.5mm, and any value therebetween), and further, the cross-section of the connecting portion 1123 may have a circular shape with a diameter of 0.2mm to 1.5mm (including the end values of 0.2mm, 1.5mm, and any value therebetween).

In other embodiments, the connection 1123 may be omitted. The cross-sectional dimension of the conductive portion 1122 near the end of the heat generating portion 1121 may be larger than the cross-sectional dimension far from the heat generating portion 1121, and in this embodiment, the conductive portion 1122 may have a tapered shape. Alternatively, the cross-sectional dimension of the heat generating portion 1121 near the end of the conductive portion 1122 may be larger than the cross-sectional dimension of the conductive portion 1122.

In this embodiment, the heat generating structure 11 further includes a mounting member 113, and the mounting member 113 is assembled with an end of the pipe body 111 having the nozzle 1111. The mounting member 113 is at least partially inserted into the tube 111, and can be fixed by interference fit therebetween. The interference fit may be direct contact fit between the mounting member 113 and the tube 111, glue between the mounting member 113 and the tube 111, or interference fit between the mounting member 113 and the tube 111 by sandwiching the mounting member between the mounting member and the tube 111 through the conductive portion 1122. Specifically, the mounting member 113 may be partially located in the tube 111 and partially disposed through the nozzle 1111. In other embodiments, the mounting member 113 is not limited to being located in the tube 111, and may be located coaxially with the tube 111 or outside of the orifice 1111. The conductive portion 1122 may be disposed through the mounting member 113 and connected to the heat generating portion 1121 to fix the heat generating element 112 to the mounting member 113. By interference fit of the mounting member 113 with the pipe wall of the pipe body 111, it can be well ensured that the heat generating portion 1121 is centrally disposed in the pipe body 111, and a certain perpendicularity is ensured. In this embodiment, the mounting member 113 is an insulating member, and the mounting member 113 may separate the two conductive portions 1122 for insulating the two conductive portions 1122. Of course, it should be understood that in other embodiments, the mounting member 113 is not limited to be an insulating member, and the mounting member 113 may be a metal member, and a surface thereof contacting the conductive portion 1122 may be provided with an insulating structure, for example, an insulating sleeve that may be embedded in the conductive portion 1122, or a surface thereof contacting the conductive portion 1122 may be provided with an insulating layer. In other embodiments, the outer surface of the conductive portion 1122 may also be provided with an insulating layer to provide insulation from the mounting member 113 to provide insulation from both conductive portions 1122. In the present embodiment, the mounting member 113 may function to fix the heating element 112. In this embodiment, the mounting member 113 may be fixed in the pipe body 111, and specifically, a portion of the pipe wall of the mounting member 113 located in the pipe body 111 may be fixed to the inner wall of the pipe body 111 by providing an adhesive, so as to prevent the movement of the mounting member 113. Of course, it will be appreciated that in other embodiments, the mounting member 113 is not limited to being secured by an adhesive, such as by being held against a base 13 on the bracket 12.

In this embodiment, the cross-sectional shape of the mounting member 113 is columnar, which may be equivalent to the cross-sectional shape of the cavity 1110 of the tube 111, and the cross-sectional area of the mounting member 113 is matched with the cross-sectional area of the cavity 1110 of the tube 111, and in this embodiment, the cross-sectional width of the mounting member 113 may be different from the cross-sectional width of the tube 111 by 0.01mm-0.3mm (including the end values of 0.01mm, 0.3mm and any value therebetween), so that the mounting member 113 may be smoothly inserted into the tube 111, and the limit may be ensured. Specifically, the mounting member 113 is cylindrical, its axial direction is the same as the axial direction of the cavity 1110, and its diameter is adapted to the diameter of the cavity 1110, specifically, the mounting member 113 may be slightly smaller than the diameter of the cavity 1110. It will be appreciated that in other embodiments, the mounting member 113 is not limited to being cylindrical, but may be square cylindrical or other shapes. In this embodiment, the mounting member 113 may be a ceramic body, a quartz tube, or other insulating structure. In some embodiments, the mounting member 113 may be made of aluminum oxide or zirconium oxide.

In the present embodiment, the mounting member 113 may include a first end 113a and a second end 113b; the first end 113a and the second end 113b are located in the axial direction of the mounting member 113 and are disposed opposite to each other. The first end 113a may be located outside the tube 111, i.e., the first end 113a may protrude from the orifice 1111. It will be appreciated that in other embodiments, the first end 113a may also be disposed adjacent to the outside of the tube 111, i.e., the first end 113a may be disposed at or adjacent to the orifice 1111. Each conductive portion 1122 may penetrate through the second end 113b and the first end 113a, and a portion of each conductive portion 1122 near the first end 113a may be bent and protruded from one side of the mounting member 113, so as to limit the mounting member 113.

In this embodiment, the mounting member 113 is provided with two channels 1131 extending from the second end 113b to the first end 113a, and each of the two channels 1131 is disposed corresponding to one of the conductive portions 1122 for passing through one of the conductive portions 1122. In this embodiment, the two channels 1131 are provided independently and do not communicate with each other. The cross-section of the channel 1131 may be generally circular, and in other embodiments, the cross-section of the channel 1131 is not limited to being circular, and may be square or U-shaped. The mounting member 113 may have two through holes or two through slots penetrating the second end 113b and the first end 113a, and each channel 1131 may be formed in each through hole or each through slot. It will be appreciated that in the present embodiment, a through hole may be formed in the mounting member 113 toAnd a through slot, the through hole may form a channel 1131, and the through slot may form another channel 1131. In this embodiment, the cross-sectional area of the channel 1131 may be adapted to the cross-sectional area of the conductive portion 1122, and in particular, the cross-sectional area of the channel 1131 may be slightly larger than the cross-sectional area of the conductive portion 1122. In this embodiment, the cross-sectional area of the channel 1131 may be 0.03mm ² ～0.28mm ² (including the end value of 0.03 mm) ² 、0.28mm ² And any value therebetween), the width of the cross section of the channel 1131 may be 0.2mm-0.6mm (including the end values 0.2mm, 0.6mm, and any value therebetween) in the present embodiment, and specifically, the diameter of the channel 1131 may be 0.2mm-0.6mm (including the end values 0.2mm, 0.6mm, and any value therebetween) in the present embodiment.

In the present embodiment, the heat generating element 112 is partially fixed to an end surface of the channel 1131 provided toward the heat generating portion 1121. Specifically, the heating element 112 may be partially abutted against the end surface of the channel 1131, i.e., the second end 113b. In other embodiments, the heating element 112 is partially fixed to at least a portion of the inner wall of the channel 1131, for example, the conductive portion 1122 is in interference fit with the channel 1131, so that the heating element is fixed in close contact with the inner wall of the channel 1131, or the heating element may be clamped and fixed on the conductive portion 1122, the connection portion 1123, or the heating portion 1121 and at least a portion of the inner wall of the channel 1131, for example, a clamping structure may be provided on the conductive portion 1122 or the connection portion 1123 and the inner wall of the channel 1131.

Specifically, in the present embodiment, the connection portion 1123 may be disposed at the second end 113b, and specifically, the connection portion 1123 may be fixed at the second end 113b. In this embodiment, the heating element 112 may include a first direction and a second direction, where the first direction and the second direction are perpendicular, the second direction is a penetrating direction of the conductive portion 1122 penetrating the channel 1131, that is, a length direction of the heating element 112, and the first direction may be a transverse direction of the heating element 112, specifically, an arbitrary direction on a transverse plane of the heating element 112, such as an X-axis direction or a Y-axis direction, and if the transverse plane of the heating element 112 has a radial direction, the first direction may be a radial direction. The dimension of the conductive portion 1122 in the first direction near the heat generating portion 1121 may be equal to or greater than the dimension of the channel 1131 in the first direction, that is, the dimension of the connecting portion 1123 in the first direction is equal to or greater than the dimension of the channel 1131 in the first direction. When the connecting portion 1123 is circular, the dimension may be the diameter of the connecting portion 1123, and then the cross-sectional area of the connecting portion 1123 may be greater than or equal to the cross-sectional area of the channel 1131, that is, the connecting portion 1123 cannot penetrate through the channel 1131, and may be further fixed to the second end 113b. In other embodiments, the connecting portion 1123 is not limited to being circular, and the size is not limited to the diameter of the connecting portion 1123, and may be the length or width of the cross-section of the connecting portion 1123. In other embodiments, the connecting portion 1123 may be fixed to the second end 113b by bonding, not limited to being fixed by increasing its size in the first direction. By fixing the connection portion 1123 to the second end of the mounting member 113, it is possible to perform a function of fixing the heating element 112 in the pipe body 111, to restrict the heating element 112 from moving toward the pipe orifice 1111 side, and to make the heating element 112 centrally fixed in the pipe body 111 and form a uniform gap with the pipe wall of the pipe body 111, so that the temperature of the pipe body 111 is uniform, and the mounting of the heating element 112 is facilitated, and the efficiency of the mounting of the heating element 112 can be improved; and improves the mounting stability and reliability of the heating element 112. It will be appreciated that in other embodiments, when the connecting portion 1123 is omitted, the dimension of the conductive portion 1122 in the first direction near the end of the heat generating portion 1121 may be equal to or greater than the dimension of the channel 1131 in the first direction, i.e., the end of the conductive portion 1122 near the heat generating portion 1121 may be abutted against the second end 113b to secure the heat generating portion 1121 to the second end 113b. In other embodiments, the dimension of the heat generating portion 1121 near the end of the conductive portion 1122 in the first direction may be larger than the dimension of the channel 1131 in the first direction, so that the end of the heat generating portion 1121 abuts against the end face of the second end 113b.

Specifically, when the heating element 112 is assembled with the tube 111, the heating element 112 may be assembled with the mounting member 113 such that the connecting portion 1123 is located at the second end of the mounting member 113, and then assembled with the mounting member 113 into the tube 111. The end of the heating portion 1121 away from the conductive portion 1122 may be in interference fit with a portion of the inner wall of the peak portion 111b, i.e. may bear against the peak portion 111b, so as to further limit the movement of the heating element 112 toward the peak portion 111b, i.e. at least two positions of the heating element 112 on the shaft may be fixed, so as to keep the heating element 112 centrally disposed in the tube body 111 and form a uniform gap with the tube wall of the columnar body 111 a.

In this embodiment, the outer wall of the tube 111 is provided with a positioning portion 114, and the positioning portion 114 can be used for integrally mounting and positioning the heat generating structure 11, specifically, can facilitate positioning and mounting the heat generating structure 11 on the bracket 12, and limit movement of the heat generating structure 11. In the present embodiment, the positioning portion 114 is provided near the nozzle 1111. In this embodiment, the positioning portion 114 may be an annular structure, such as a fixing flange. In this embodiment, the positioning portion 114 may be fixed to the outer wall of the tube 111 by a connection structure, and in particular, the connection structure may be an adhesive structure, such as an adhesive. It will be appreciated that in other embodiments, the locating portion 114 may be integrally formed with the tube 111, and in particular, the locating portion 114 may be integrally formed with the tube 111 by injection molding.

In this embodiment, the bracket 12 may include a bracket body 121, and the bracket body 121 may be partially embedded in the housing 30 and interference fit with the housing 30. The holder body 121 is provided with a receiving chamber 1210, and the receiving chamber 1210 is configured to receive the extractor 40 of the aerosol-generating substrate 200. The receiving cavity 1210 may be an open structure having a generally L-shaped opening that may extend from the top surface of the bracket body 121 to the side walls of the bracket body 121. The holder 12 has a support wall 122 disposed therein, the support wall 122 being operable to support the extractor 40. In this embodiment, the support 12 is provided with a mounting hole 123, and the mounting hole 123 may be located on the supporting wall 122 for passing through a portion of the heat generating structure 11. In the present embodiment, the mounting hole 123 allows a part of the tube 111, specifically, a part of the tube 111 located on the side of the positioning portion 114 away from the nozzle 1111 may pass through the mounting hole 123.

In this embodiment, the heating assembly 10 further includes a base 13, the base 13 is disposed at the bottom of the bracket body 121, the base 13 includes a bottom wall 131 and a limiting structure 132 disposed on the bottom wall 131, and the bottom wall 131 is located at one end of the bracket 12 and can prop against the mounting member 113 penetrating from the nozzle 1111, so that the mounting member 113 is fixed in the tube body 111. The limiting structure 132 is located in the bracket 12, specifically, the limiting structure 132 is located on a side of the support wall 122 away from the accommodating cavity 1210. The limiting structure 132 can cooperate with the positioning portion 114 to limit the movement and rotation of the positioning portion 114, thereby limiting the movement and rotation of the heating structure 11. Specifically, in the present embodiment, the limiting structure 132 may be wrapped around the outer periphery of the positioning portion 114 to limit the rotation of the positioning portion 114. In this embodiment, the inner wall of the limiting structure 132 is provided with a limiting boss 1321, and the limiting boss 1321 can prop against the positioning portion 114 to limit the movement of the positioning portion 114. In this embodiment, the base 13 is detachably connected to the bracket 12. When the heat generating component 10 is assembled, the heat generating structure 11 can be installed on the base 13, and then a part of the tube body 111 of the heat generating structure 11 penetrates into the accommodating cavity 1210 from the installation hole 123, so that the heat generating structure 11 and the base 13 are assembled on the bracket 12 together. The heating structure 11 can be replaced conveniently by the detachable base 13.

In this embodiment, the heat generating component 10 further includes a sealing structure 14, where the sealing structure 14 is disposed between an outer wall of the heat generating structure 11 and an inner wall of the mounting hole 123, and has a ground, and the sealing structure 14 can be sleeved on an outer periphery of the tube body 111, and is located on a side of the positioning portion 114 away from the nozzle 1111, and can be embedded into the mounting hole 123, so as to seal a gap between the heat generating structure 11 and the mounting hole 123, and be used for buffering vibration and preventing the aerosol from overflowing from the mounting hole 123. In this embodiment, the sealing structure 14 may be a sealing ring, such as a rubber ring or a silicone ring.

Fig. 9 shows a second embodiment of the aerosol generating device according to the present utility model, which is different from the first embodiment in that the end of the heat generating portion 1121 near the peak portion 111b has the maximum radial dimension or width of the heat generating portion 1121, specifically, the heat generating portion 1121 includes a spiral section 1124 disposed near the peak portion 111b, one end of the spiral section near the peak portion 111b includes an annular portion 1125, the annular portion 1125 has the maximum radial dimension of the heat generating portion 1121, that is, the diameter of the annular portion 1125 is larger than the diameter of the cross section of other positions of the heat generating portion 1121, the end of the heat generating portion 1121 near the peak portion 111b can play a mounting limitation role, while ensuring that the middle portion of the heat generating portion 1121 is not in direct contact with the inner wall of the tube body 111, and in addition, the heat dissipation area can be increased, the resistance can be reduced, and the end of the heat generating portion 1121 near the peak portion 111b can be prevented from being too high in temperature. It will be appreciated that the radial dimension of the annular portion 1125 may be equal to the radial dimension of the helical segment, so long as the spacing between the helical segment and the tube wall is maintained and controlled to be between 0.05mm and 0.5mm (including the end values of 0.05mm, 0.5mm, and any value therebetween).

As shown in fig. 9, one end of the spiral section 1124 near the peak 111b includes a top portion having an axial set height h, and the resistance of the spiral section adjacent to the top portion with the same height h is greater than that of the top portion, i.e. the resistance of the top portion of the heating portion 1121 and the peak 111b is lower, and the heat generated by the top portion of the heating portion 1121 in the energized state is less than that of other portions, so that the top portion of the heating structure 11 is prevented from being too high in temperature, the aerosol generating substrate 200 is prevented from being burnt, and the aerosol taste is improved. In some embodiments, the helical segment may include a helical portion and a straight portion inside the helical portion, or may include only the helical portion.

Fig. 10 shows a third embodiment of the aerosol-generating device of the utility model, which differs from the second embodiment in that the heat generating portion 1121 comprises a spiral section 1124 near the peak portion 111b, the radial or width dimension of the end of the spiral section 1124 near the peak portion 111b being smaller than the largest radial dimension of the spiral section 1124. In this embodiment, the spiral segment 1124 includes a bend 1126 near the peak 111b, the width of which is less than the maximum radial dimension of the spiral segment. That is, the width of the top of the heating portion 1121 is smaller, so that the heating portion can be matched with the peak 111b of the tube 111 to limit, and the contact area with the peak 111b can be reduced, and the heating and light wave radiation can be reduced, that is, the temperature of one end close to the peak 111b is smaller than the temperature of the part far away from the peak 111b, so that the overhigh temperature of the top of the heating structure 11 can be avoided, and in addition, the width of the top of the heating portion 1121 can be reduced, and the heat capacity of the heating portion 1121 can be reduced.

Fig. 11 shows a fourth embodiment of the aerosol-generating device according to the present utility model, which is different from the second embodiment in that the interval between the annular portion 1125 and the adjacent spiral segment is larger than the interval between the spiral segments, and the spiral segment far away from the annular portion 1125 is spaced from the inner wall of the tube 111, so as to reduce the light wave radiation generated by the heat generating portion 1121 when the power is applied, further avoid the excessive temperature at the top of the heat generating structure 11, avoid burning the aerosol-generating substrate 200, and improve the aerosol taste.

Fig. 12 shows a fifth embodiment of the aerosol-generating device according to the present utility model, which is different from the third embodiment in that the space between the bent portion 1126 and the adjacent spiral segment is larger than the space between the spiral segments, and the spiral segment far away from the bent portion 1126 is spaced from the inner wall of the tube 111, so as to reduce the light wave radiation generated by the top of the heat generating portion 1121 when the power is applied, further avoid the excessive temperature of the top of the heat generating structure 11, avoid burning the aerosol-generating substrate 200, and improve the aerosol taste.

In other embodiments, the end of the spiral section near the peak portion 111b is not limited to include the bending portion 1126 or the annular portion 1125, the end of the spiral section 1124 near the peak portion 111b may include only a tip or flat portion, the width of the tip or flat portion may be smaller than the outer diameter of the spiral section 1124, the tip and flat portion may abut against the top end of the peak portion 111b, the spiral section 1124 of the heating portion 1121 far from the tip or flat portion may be spaced from the inner wall of the tube 111, that is, the heating portion 1121 may be limited by the tip or flat portion and the peak portion 111b, and by being configured as the tip or flat portion, the light wave radiation generated when the power is applied may be reduced, thereby avoiding the excessive temperature of the top of the heating structure 11, avoiding burning of the aerosol-generating substrate 200, and improving the aerosol taste.

In other embodiments, a spacing portion is provided between the heat generating portion 1121 and the mounting member 113 for defining the distance between the heat generating portion 1121 and the mounting member 113. Specifically, the limiting portion may be an insulating sleeve sleeved on the end portion of the heating wire or the conductive portion 1122, for example, the insulating sleeve may be made of alumina, zirconia, or other materials, the limiting portion may also be a thickened portion of the end portion of the heating wire, or a thickened portion of the conductive portion 1122, and the limiting portion is limited on the top surface of the mounting member 113, so as to limit the position of the conductive portion 1122 after passing through the mounting member 113, which is beneficial to mass production, ensures consistency of the heating structure, and is finally beneficial to temperature control and suction taste.

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

1. A heating structure, which is characterized by comprising a heating element (112), a tube body (111) and a mounting piece (113);

the pipe body (111) is provided with a pipe orifice (1111);

-said mounting (113) is assembled with the end of said tubular body (111) having said mouth (1111);

the heating element (112) comprises a heating part (1121) and a conductive part (1122); the heating part (1121) is arranged in the pipe body (111) and is at least partially arranged at intervals with the pipe wall of the pipe body (111) so as to radiate infrared light, and the infrared light passes through the pipe body (111) and then heats the aerosol-generating substrate (200); the conductive part (1122) is arranged on the mounting piece (113) in a penetrating way and is connected with the heating part (1121) so as to fix the heating element (112) on the mounting piece (113).

2. The heat generating structure according to claim 1, wherein the mounting member (113) is provided with a passage (1131) through which the conductive portion (1122) passes; the heating element (112) is partially fixed to an end surface of the channel (1131) disposed toward the heating portion (1121), and/or the heating element (112) is partially fixed to at least a part of an inner wall of the channel (1131).

3. The heat generating structure according to claim 2, wherein the heat generating element (112) includes a first direction and a second direction perpendicular to the first direction, wherein the second direction is a penetrating direction in which the conductive portion (1122) is penetrated in the channel (1131);

The dimension of the conductive part (1122) in the first direction near the end of the heat generating part (1121) is equal to or greater than the dimension of the channel (1131) in the first direction, or the dimension of the heat generating part (1121) in the first direction near the end of the conductive part (1122) is equal to or greater than the dimension of the channel (1131) in the first direction.

4. The heat generating structure according to claim 1, wherein the mounting member (113) is provided with a channel (1131) through which the conductive portion (1122) passes, and has a first end (113 a) located at or near the nozzle (1111) and a second end (113 b) disposed opposite to the first end (113 a);

-each of the channels (1131) extends from the second end (113 b) to the first end (113 a);

a connecting part (1123) connected with the heating part (1121) is arranged at one end of the conductive part (1122) close to the heating part (1121); the connecting portion (1123) is fixed to the second end (113 b).

5. The heat generating structure as recited in claim 4, wherein a cross-sectional area of the connecting portion (1123) is equal to or larger than a cross-sectional area of the channel (1131).

6. A heat generating structure as claimed in claim 5, characterized in that the cross-sectional area of the connecting portion (1123) is 0.07mm ² ～0.8mm ² The cross-sectional area of the channel (1131) is 0.03mm ² ～0.28mm ² 。

7. The heat generating structure as recited in claim 5, wherein a width of a cross section of the connecting portion (1123) is 0.2mm to 1.5mm, and a width of a cross section of the channel (1131) is 0.2mm to 0.6mm.

8. The heat generating structure according to claim 2, wherein the mounting member (113) is provided with a through hole or a through groove;

the channel (1131) is formed in the through hole or the through groove.

9. The heat generating structure as recited in claim 1, wherein two of said conductive portions (1122) are provided, and wherein two of said conductive portions (1122) are insulated or spaced apart from each other.

10. The heat generating structure according to claim 9, wherein the mount (113) is an insulating member or a surface of the mount (113) in contact with the conductive portion (1122) is provided with an insulating structure;

the two conductive portions (1122) are provided in an insulating manner by the mount (113).

11. The heat generating structure as recited in claim 1, wherein the mounting member (113) is at least partially inserted into the opening of the tube body (111) with an interference fit therebetween.

12. The heat generating structure according to any one of claims 1 to 11, wherein the tube body (111) includes a peak portion (111 b), and an end of the heat generating portion (1121) remote from the conductive portion (1122) is interference fit or contacted with a part of an inner wall of the peak portion (111 b).

13. The heat generating structure according to claim 12, wherein an end of the heat generating portion (1121) near the peak portion (111 b) has a maximum radial dimension or a width dimension of the heat generating portion (1121).

14. The heat generating structure as claimed in claim 12, wherein the heat generating portion (1121) comprises a spiral section (1124), and a radial or width dimension of an end of the heat generating portion (1121) near the peak portion (111 b) is smaller than or equal to a maximum radial dimension of the spiral section (1124).

15. The heat generating structure as claimed in claim 12, wherein the heat generating portion (1121) includes a spiral section (1124) near the peak portion (111 b), an end of the spiral section (1124) near the peak portion (111 b) includes a bent portion (1126) or an annular portion (1125), and a distance between the bent portion (1126) or the annular portion (1125) and the adjacent spiral section (1124) is larger than a pitch of the spiral section (1124), and the spiral section (1124) far from the bent portion (1126) or the annular portion (1125) is spaced from an inner wall of the pipe body (111).

16. The heat generating structure as recited in claim 12, wherein the heat generating portion (1121) includes a spiral section (1124) adjacent to the peak portion (111 b), an end of the spiral section (1124) adjacent to the peak portion (111 b) includes a tip or flat portion, a width of the tip or flat portion is smaller than an outer diameter of the spiral section (1124), the tip or flat portion abuts against an inner wall of the peak portion (111 b), and the spiral section (1124) away from the tip or flat portion is spaced from an inner wall of the tube body (111).

17. The heat generating structure as recited in claim 12, wherein the heat generating portion (1121) includes a spiral section (1124) near the peak portion (111 b), an end of the spiral section (1124) near the peak portion (111 b) includes a top portion, an axial direction of the top portion has a set height, and a resistance value of the spiral section (1124) of the same height adjacent to the top portion is larger than a resistance value of the top portion.

18. The heat generating structure as recited in claim 4, wherein a portion of the conductive portion (1122) disposed near the first end (113 a) is folded and extends out from one side of the mounting member (113).

19. The heat generating structure according to claim 1, wherein the outer wall of the tube body (111) is provided with a positioning portion (114) for mounting and positioning the heat generating structure (11).

20. The heat generating structure according to claim 1, wherein a stopper portion is provided between the heat generating portion (1121) and the mount (113) for restricting a distance between the heat generating portion (1121) and the mount (113).

21. A heat generating component comprising a support (12) and a heat generating structure (11) according to any one of claims 1 to 20 arranged on said support (12).

22. The heating assembly according to claim 21, wherein the bracket (12) is provided with a mounting hole (123) through which a part of the heating structure (11) is inserted;

a sealing structure (14) is arranged between the outer wall of the heating structure (11) and the inner wall of the mounting hole (123).

23. A heat generating assembly as claimed in claim 21, characterized in that a limit structure (132) for limit mounting of the heat generating structure (11) is provided in the bracket (12).

24. An aerosol-generating device, characterized in that it comprises a heat-generating structure (11) according to any one of claims 1 to 20 and a power supply assembly (20) electrically connected to the heat-generating structure (11).