CN212590263U

CN212590263U - Aerosol generating device

Info

Publication number: CN212590263U
Application number: CN201921987439.2U
Authority: CN
Inventors: 周军晓; 张建; 何铭利; 周勇
Original assignee: Shenzhen Royal Tobacco Industrial Ltd
Current assignee: Shenzhen Royal Tobacco Industrial Ltd; Shenzhen Yuyan Industrial Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2021-02-26
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to an aerosol generating device, including being used for the circular telegram to produce thermal ohmic heating element, ohmic heating element disposes and is used for making the waste heat that the ohmic heating element heating in-process produced scatters the radiating piece towards at least one direction, the radiating piece extends along this at least one direction. The utility model discloses an aerosol generates device is through setting up the radiating piece that extends, goes out near the waste heat homodisperse of ohmic heating element, and then avoids local overheated phenomenon.

Description

Aerosol generating device

Technical Field

The utility model relates to an electron heating cigarette field, concretely relates to aerosol generates device.

Background

Currently, the electronic heating cigarettes include electronic cigarettes and low-temperature heating cigarettes that do not burn. The electronic cigarette is an electronic product simulating a cigarette, has the same appearance, smoke, taste and feeling as the cigarette, and is a product which is used for converting nicotine and the like into steam by means of atomization and the like by utilizing an atomizer (generally called as a cartridge) and then is sucked by a user. The low temperature heating non-combustible smoke designed by the idea of 'heating non-combustible' can heat the smoke material (generally called smoke cartridge) to a degree just enough to emit flavor without igniting the smoke material. In general, ordinary cigarettes generate a plurality of harmful substances at high smoking temperature of 400-1000 ℃, while low-temperature heating cigarettes mostly work at the temperature below 400 ℃, so that the harmful substances in first-hand cigarettes and second-hand cigarettes are greatly reduced.

Although the heating temperature of the low-temperature heating non-combustible smoke is lower than 400 ℃, a large amount of waste heat is still generated, the part near the electrified heating element is overheated locally, and the phenomenon that a user burns hands when using the electric heating non-combustible smoke.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an aerosol-generating device comprising an electrically powered heating element for generating heat upon electrical powering, the electrically powered heating element being provided with a heat sink for dissipating residual heat generated during heating by the electrically powered heating element in at least one direction, the heat sink extending in the at least one direction.

In a preferred embodiment, the aerosol-generating device further comprises a housing, the heat sink extending along at least part of an inner wall of the housing.

In a preferred example, the housing includes a bottom wall and a barrel wall extending along an end edge of the bottom wall away from the bottom wall, the electrical heating element is disposed at an end of the barrel wall away from the bottom wall, and the heat dissipation member extends along at least a portion of an inner wall of the barrel wall.

In a preferred example, the heat dissipation member extends from one end of the cylinder wall far away from the bottom wall to the other end of the cylinder wall along the length direction.

In a preferred example, the cylinder wall is divided into two half cylinder walls along the length direction in a flat mode, and the shape and the size of the heat dissipation piece are matched with those of at least one half cylinder wall.

In a preferred embodiment, the electric heating element is mounted by a base, and the heat sink is connected to or spaced apart from the electric heating element and/or the base.

In a preferred embodiment, the heat sink is inserted into the housing.

In a preferred embodiment, the heat sink is adhered, plated, printed, coated, printed, and evaporated on the inner wall of the housing.

In a preferred embodiment, the heat sink is a sheet, film, structural layer, foil, cloth or paper made of a heat conductive material.

In a preferred example, the heat conductive material includes at least one of derivatives and compounds of carbon as a part or all of constituent elements, heat conductive metals, and heat conductive metal alloys.

In a preferred example, the heat conductive material contains at least one of graphite, graphene, nano carbon, carbon fiber, carbon nanotube, silver, aluminum and copper.

It should be noted that a great number of technical features are described in the specification of the present application, and are distributed in various technical solutions, so that the specification is excessively long if all possible combinations of the technical features (i.e., technical solutions) in the present application are listed. In order to avoid this problem, the respective technical features disclosed in the above-mentioned utility model of the present application, the respective technical features disclosed in the following embodiments and examples, and the respective technical features disclosed in the drawings may be freely combined with each other to constitute various new technical solutions (which are considered to have been described in the present specification) unless such a combination of technical features is technically impossible. For example, in one example, the feature a + B + C is disclosed, in another example, the feature a + B + D + E is disclosed, and the features C and D are equivalent technical means for the same purpose, and technically only one feature is used, but not simultaneously employed, and the feature E can be technically combined with the feature C, so that the solution of a + B + C + D should not be considered as being described because the technology is not feasible, and the solution of a + B + C + E should be considered as being described.

The utility model discloses an aerosol generates device is through setting up the radiating piece that extends, goes out near the waste heat homodisperse of ohmic heating element, and then avoids local overheated phenomenon.

Drawings

Fig. 1 is an exploded view of a portion of an aerosol generating device according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of an aerosol generating device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only. The various objects of the drawings are drawn to scale for ease of illustration and not to scale for actual components.

An "aerosol-generating device" as described in embodiments of the present invention refers to a device, such as a smoking article, for providing electrical energy to an aerosol-generating article. By "aerosol-generating article" is meant a product, such as a cigarette, cartridge or rod, preferably a disposable article, containing a smoking material, capable of generating an aerosol, such as smoke or a mist, upon heating. The aerosol-generating article is not capable of providing electrical energy by itself.

An "electrically energized heating element" as described in embodiments of the present invention refers to an element that converts electrical energy provided by an aerosol-generating device into thermal energy.

Referring to figure 1, an aerosol-generating device according to an embodiment of the present invention comprises an upper portion 1 and a lower portion 2. The upper part 1 is for receiving an aerosol-generating article, and the upper part 1 is designed with an aerosol-generating article receiving cavity 11 and an electrically energized heating element (not shown) for electrically generating heat to heat the aerosol-generating article. The electric heating element is positioned in the accommodating cavity 11 or inserted into the accommodating cavity 11 from the bottom. The lower part is provided with a power supply 21 for supplying power, the power supply 21 preferably adopts a battery, and the power supply 21 can also be a solar light panel and the like. Preferably, the lower portion 2 may further include a control circuit disposed on the circuit board, including but not limited to an overcurrent protection control, a temperature control, a charging control, a discharging control, a heating mode control (continuous, pulse, temperature-controlled heating, electromagnetic induction heating, etc.), and the like. For enhanced understanding, the above design is merely illustrative, and the specific design of the upper part 1 and the lower part 2 may be designed differently as desired.

In some embodiments, the electrically powered heating element is preferably an electrically resistive material which, when energised, converts electrical energy into thermal energy to generate heat to enable the aerosol-generating article to be heated to generate an aerosol, and is preferably composited with an insulating material such as a ceramic to form an electrically powered heating element in the form of a needle, rod or sheet having a strength for at least partial insertion into the aerosol-generating article. In other embodiments, the electrically energized heating element may be cylindrical or the like.

Wherein, the circular telegram heating element disposes the radiator 3 that is used for making the waste heat that the circular telegram heating element heating process produced to disperse towards at least one direction, and radiator 3 extends along this at least one direction. It should be noted that the residual heat generated during heating by the electrical heating element is the residual heat generated by the electrical heating element while providing heat to the aerosol-generating article, and the residual heat is absorbed and uniformly distributed on the heat dissipation member 3 by the heat dissipation member 3, so as to achieve the effect of dispersing the collected heat.

Wherein the heat sink 3 is a sheet, film, structural layer, foil, cloth or paper made of a heat conductive material. The heat conductive material includes at least one of a derivative and a compound, a heat conductive metal, and a heat conductive metal alloy, which use carbon as a part or all of constituent elements. The mixture of the two is a derivative using carbon as a part or all of the constituent elements, a mixture of a compound and a heat conductive metal, or the like. Specifically, the heat conductive material contains at least one of graphite, graphene, nanocarbon, carbon fiber, carbon nanotube, silver, aluminum, and copper. For example, the heat conductive material may be a graphene film, graphene paper, graphene layer, graphite film, graphite paper, graphite layer, nanocarbon film, nanocarbon layer, aluminum sheet, aluminum foil, copper sheet, copper foil, aluminum alloy sheet, or the like.

In an embodiment, the aerosol-generating device further comprises a housing 4, the housing 4 being mounted to the lower portion 2 of the aerosol-generating device, i.e. the power supply, control circuitry, etc. are arranged within the housing 4. The heat sink 3 is adjacent the electrically energised heating element and extends along at least part of the inner wall of the housing 4. The heat dissipation member 3 may be formed to extend along the entire inner wall of the housing 4, or may be formed to extend along a part of the inner wall of the housing 4.

In one embodiment, the housing 4 includes a bottom wall 41 and a cylindrical wall 42 extending along an end edge of the bottom wall 41 away from the bottom wall 41, the electrical heating element is disposed at an end of the cylindrical wall 42 away from the bottom wall 41, and the heat sink 3 extends along at least a portion of an inner wall of the cylindrical wall 42. The heat sink 3 may be formed to extend along the entire inner wall of the cylindrical wall 42, or may be formed to extend along a part of the inner wall of the cylindrical wall 42. It should be noted that the electrically-powered heating element disposed at an end of the cylindrical wall 42 away from the bottom wall 41 refers to the electrically-powered heating element disposed outside an end of the cylindrical wall 42 away from the bottom wall 41, or disposed inside an end of the cylindrical wall 42 away from the bottom wall 41, or disposed at an end of the cylindrical wall 42 away from the bottom wall 41, which can be understood as the electrically-powered heating element disposed at an end of the cylindrical wall 42 away from the bottom wall 41.

In one embodiment, the heat sink 3 extends from one end of the cylindrical wall 42 away from the bottom wall 41 to the other end of the cylindrical wall 42 along the length direction, so that the heat of the energized heating element is uniformly dispersed along the heat sink 3, and the heat on the cylindrical wall 42 is uniform and not hot to the hand.

In another embodiment, the wall 42 is divided equally lengthwise into two half walls, and the heat sink 3 is shaped and sized to fit at least one of the half walls. In one embodiment, the heat dissipation effect can be achieved by fully distributing the heat dissipation members 3 on half of the cylinder wall, and meanwhile, the heat conduction materials are saved; in other embodiments, the heat dissipation member may be fully distributed on the entire cylinder wall 42, so that the heat dissipation effect is better.

In another embodiment, the electric heating element may be further mounted through the base 12, and the heat sink 3 may be connected to the electric heating element, the base 12, or both the electric heating element and the base 12. The base 12 is substantially cylindrical, and forms an accommodating chamber 11, and the electric heating element is mounted in the base 12.

In another embodiment, the heat sink 3 is spaced from the energized heating element. Alternatively, the heat sink 3 is spaced apart from the base 12. Alternatively, the heat sink 3 is simultaneously spaced from the energized heating element and the base 12, respectively. Alternatively, the heat sink 3 is spaced from one of the electric heating element and the base 12, and the heat sink 3 is connected to the other of the electric heating element and the base 12. The spaced arrangement means that there is a spacing distance, not a connection.

As shown in fig. 2, in an embodiment, heat sink 3 is sandwiched within housing 4, i.e. no connecting structure is required, but merely sandwiched within housing 4, in particular between the inner wall of housing 4 and bracket 5 within housing 4.

In other embodiments, the heat dissipation element 3 may be adhered, plated, printed, coated, printed, or evaporated on the inner wall of the housing 4. Or the end of the heat sink 3 is adhered to the base 12 and/or to the bracket 5 inside the housing 4, etc.

The utility model discloses aerosol generation device is through setting up the radiating piece that extends, goes out near the waste heat homodisperse of ohmic heating element, and then avoids local overheated phenomenon.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An aerosol-generating device comprising an electrically powered heating element for generating heat upon being powered, characterised in that the electrically powered heating element is provided with a heat sink for dissipating waste heat generated during heating by the electrically powered heating element in at least one direction, the heat sink extending in the at least one direction.

2. An aerosol-generating device according to claim 1, further comprising a housing, the heat sink extending along at least part of an inner wall of the housing.

3. An aerosol-generating device according to claim 2, wherein the housing comprises a bottom wall and a cartridge wall extending along an end edge of the bottom wall away from the bottom wall, the electrically powered heating element being arranged at an end of the cartridge wall remote from the bottom wall, and the heat sink extending along at least part of an inner wall of the cartridge wall.

4. An aerosol-generating device according to claim 3 in which the heat sink extends lengthwise from one end of the cartridge wall remote from the bottom wall to the other end of the cartridge wall.

5. An aerosol-generating device according to claim 3 in which the cartridge wall is divided equally lengthwise into two half cartridge walls, the heat sink being shaped and sized to match at least one of the half cartridge walls.

6. An aerosol-generating device according to claim 3 in which the energised heating element is mounted by a base, the heat sink being connected to or spaced from the energised heating element and/or the base.

7. An aerosol-generating device according to claim 2, wherein the heat sink is clamped within the housing.

8. An aerosol-generating device according to claim 7, wherein the heat sink is adhered, plated, printed, coated, printed, evaporated onto the inner wall of the housing.

9. An aerosol-generating device according to claim 1, wherein the heat sink is a structural layer made of a thermally conductive material.

10. An aerosol-generating device according to claim 9, wherein the thermally conductive material comprises one of derivatives and compounds of carbon as part or all of a constituent element, thermally conductive metals, thermally conductive metal alloys.

11. An aerosol-generating device according to claim 10, wherein the thermally conductive material comprises one of graphite, graphene, nanocarbon, carbon fibres, carbon nanotubes, silver, aluminium, copper.