CN220140812U - Smoke generator - Google Patents

Abstract

The present utility model provides a smoke generating device comprising: a housing and a heating device. The housing is provided with an insertion hole for inserting the aerosol-generating substrate and an air inlet hole for inlet air. The heating device is arranged in the shell and comprises a heating tube, a heat-insulating metal tube and heat-insulating cotton, the heat-insulating metal tube is sleeved outside the heating tube, the heat-insulating cotton is coated outside the heat-insulating metal tube, an air flow channel is formed in the heating tube, and the air flow channel is communicated with the inserting hole and the air inlet hole. Through setting up heating device in the shell to set up heating device into heating tube, thermal-insulated metal tube and the structure that the thermal-insulated cotton was established in proper order, reduce the heat that the heating tube sent and can transmit for the shell, thereby make more heat be used for adding aerosol and generate the matrix, improve the utilization ratio of energy.

Description

Smoke generator

Technical Field

The utility model relates to the technical field of heating non-combustion smoking sets, in particular to an aerosol generating device.

Background

The electronic cigarette is an electronic product imitating cigarettes, and can generate smoke like common cigarette products so as to be smoked by users. Current Heating Not Burn (HNB) smoking articles typically use a circumferentially heated smoking article to bake an aerosol-generating substrate, which itself may burn during the heating of the aerosol-generating substrate, which may affect the user experience over time.

Disclosure of Invention

Embodiments of the present utility model provide an aerosol generating device to at least partially ameliorate the above problems.

The embodiment of the utility model is realized by the following technical scheme.

An embodiment of the present utility model provides a smoke generating apparatus including: a housing and a heating device. The housing is provided with an insertion hole for inserting an aerosol-generating substrate and an air inlet hole for inlet air. The heating device is arranged in the shell, the heating device comprises a heating tube, a heat-insulating metal tube and heat-insulating cotton, the heat-insulating metal tube is sleeved outside the heating tube, the heat-insulating cotton is coated outside the heat-insulating metal tube, an air flow channel is formed in the heating tube, and the air flow channel is communicated with the insertion hole and the air inlet hole.

In some embodiments, a gap is formed between the insulated metal tube and the heat generating tube.

In some embodiments, the gap has a width of 2mm to 6mm.

In some embodiments, the heating tube and the heat insulating metal tube are coaxially arranged.

In some embodiments, the housing comprises a first shell, the insertion hole is formed in the first shell, the smoke generating device further comprises an upper fixing piece, and one end of the heat insulating metal pipe is fixed to the first shell through the upper fixing piece.

In some embodiments, one end of the upper fixing member is connected to the first housing, the other end of the upper fixing member is assembled with the end of the heating tube in a sealing manner, the heat-insulating metal tube is sleeved outside the heating tube and the upper fixing member, and the inner wall of the heat-insulating metal tube is clamped with the upper fixing member.

In some embodiments, the smoke generating device further comprises a lower fixture by which an end of the insulated metal tube remote from the upper fixture is secured to the first housing.

In some embodiments, one end of the lower fixing member is connected to the first housing, the other end of the lower fixing member is in sealing assembly with an end portion, far away from the upper fixing member, of the heating tube, the heat insulation metal tube is sleeved outside the heating tube and the lower fixing member, and the inner wall of the heat insulation metal tube is clamped with the lower fixing member.

In some embodiments, the smoke generating device further comprises: and the sealing piece is arranged on the lower fixing piece, is positioned between the lower fixing piece and the heat insulation cotton and is used for sealing a gap between the lower fixing piece and the heat insulation cotton.

In some embodiments, the thickness of the insulating metal tube is 0.1mm to 0.3mm and the thickness of the insulating cotton is 1mm to 3mm.

According to the smoke generating device provided by the embodiment of the utility model, the heating device is arranged in the shell, and is of a structure that the heating tube, the heat-insulating metal tube and the heat-insulating cotton are sleeved in sequence, the heat emitted by the heating tube can be absorbed by the heat-insulating metal tube, after a certain amount of heat is absorbed by the heat-insulating metal tube, the redundant heat is emitted, and the heat emitted by the heat-insulating metal tube is absorbed by the heat-insulating cotton, so that the heat received by the shell is little finally, the heat emitted by the heating tube is reduced and can be transmitted to the shell, and more heat is used for adding aerosol generating matrixes, and the energy utilization rate is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an aerosol generating device according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view at A-A in fig. 1.

Fig. 3 is an exploded view of a housing according to an embodiment of the present utility model.

Fig. 4 is a partial enlarged view at a in fig. 1.

Fig. 5 is a bottom view of an aerosol generating device according to an embodiment of the present utility model.

Fig. 6 is a schematic structural diagram of an upper fixing member according to an embodiment of the present utility model.

Fig. 7 is a cross-sectional view at B-B in fig. 6.

Reference numerals: the smoke generating apparatus 1, the housing 10, the insertion hole 110, the air intake hole 120, the first case 130, the mounting block 131, the second case 140, the mounting groove 141, the third case 150, the mounting member 151, the heating apparatus 20, the heating pipe 210, the air flow passage 211, the heat insulating metal pipe 220, the heat insulating cotton 230, the gap 240, the upper fixing member 30, the body 310, the stopper 320, the first clamping portion 330, the second clamping portion 340, the lower fixing member 40, and the sealing member 50.

Detailed Description

In order to make the present utility model better understood by those skilled in the art, the following description of the present utility model will be made in detail with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which a person skilled in the art would obtain without making any inventive effort, are within the scope of the utility model.

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1 and 2, an embodiment of the present utility model proposes a smoke generating device 1, the smoke generating device 1 may include: the housing 10 and the heating device 20.

The housing 10 is provided with an insertion hole 110 for inserting an aerosol-generating substrate and an air inlet hole 120 for inlet air. Referring to fig. 3, in this embodiment, the housing 10 may include a first housing 130, a second housing 140, and a third housing 150, and is assembled by the first housing 130, the second housing 140, and the third housing 150, specifically, the third housing 150 may be nested on the second housing 140, for example, a mounting member 151 may be disposed on the third housing, the second housing 140 may be made of a flexible material and has a certain elasticity, so that the second housing 140 may be nested on the mounting member 151, in addition, a mounting slot 141 may be disposed on the second housing 140, a mounting block 131 may be disposed on the first housing 130, and the first housing 130 and the second housing 140 may be clamped by the mounting slot 141 and the mounting block 131, for example, may be in an interference connection, so as to improve structural stability of the housing 10.

In this embodiment, the insertion hole 110 and the air inlet hole 120 are both disposed on the first housing 130, and the insertion hole 110 and the air inlet hole 120 may be disposed opposite to each other, so as to improve the smoothness of airflow, and further improve the sucking experience of the user. In particular, the area near the insertion hole 110 may be slightly recessed towards the interior of the housing 10 in order to facilitate guiding the insertion of the aerosol-generating substrate. Referring to fig. 5, the air inlet 120 may be a waist-shaped hole, so as to prevent foreign objects from entering the air inlet 120 and blocking the air inlet due to an excessive aperture, and further, in order to increase ventilation, a plurality of waist-shaped holes may be provided and arranged side by side, for example, 3 holes in the illustration.

Referring to fig. 4, the heating device 20 is disposed inside the casing 10, and the heating device 20 includes a heating tube 210, a heat insulation metal tube 220 and heat insulation cotton 230, wherein the heat insulation metal tube 220 is sleeved outside the heating tube 210, and the heat insulation cotton 230 is coated outside the heat insulation metal tube 220.

The heating tube 210 may be a tubular structure rolled up from a resistive sheet or a resistive mesh. The heat-insulating metal pipe 220 may be a hardware pipe for heat insulation to reduce heat transfer like the case 10, and preferably, the heat-insulating metal pipe 220 may be a heat-resistant material having high strength and being not easily rusted, such as an aluminum pipe, a stainless steel pipe, or the like. The heat-insulating cotton 230 may be aerogel cotton, and the aerogel cotton as the heat-insulating cotton 230 has the advantages of high efficiency heat insulation, light weight, water resistance, high temperature resistance and the like, and does not increase the weight of the smoke generating device 1 while insulating heat, so that the use experience of a user is improved, and it is noted that the heat-insulating cotton 230 is not a completely heat-insulating material, but a material capable of absorbing a large amount of heat, such as a material with a higher specific heat capacity.

In some embodiments, the thickness of the heat-insulating metal pipe 220 is 0.1mm-0.3mm, for example, may be 0.2mm, the thickness of the heat-insulating cotton 230 is 1mm-3mm, for example, may be 2mm, the thickness can enable the smoke generating device 1 to be in a smaller volume as a whole under the heat-insulating effect, the heat conduction coefficient of the heat-insulating cotton 230 can be between 0.013W/(m.K), and preferably can be 0.02W/(m.K), and the heat-insulating cotton 230 can achieve good heat-insulating effect and reduce cost.

The inside of the heating tube 210 forms an air flow path 211, the air flow path 211 communicates with the insertion hole 110 and the air intake hole 120, and in this embodiment, the air flow path 211, the insertion hole 110 and the air intake hole 120 are arranged in a straight line, shortening the air flow path and improving the ventilation efficiency.

In some embodiments, a gap 240 may be formed between the heat insulating metal pipe 220 and the heat generating pipe 210, so that heat of the heat generating pipe 210 is prevented from being directly transferred to the heat insulating metal pipe 220, and the service life of the heat insulating metal pipe 220 is reduced. Further, the width of the gap 240 may be set to 2mm-6mm, for example, 4mm. The gap 240 in the width region can serve as an auxiliary cooling function without excessively increasing the volume of the smoke generating device 1.

In this embodiment, the heating tube 210 and the heat-insulating metal tube 220 may be coaxially disposed, so that the heat absorbed by each position on the heat-insulating metal tube 220 is the same, thereby avoiding local high temperature and affecting the user experience. Similarly, since the heat insulating cotton 230 is coated outside the heat insulating metal pipe 220, it may be disposed coaxially with the heat insulating metal pipe 220. It can be understood that the heating tube 210, the heat insulating metal tube 220 and the heat insulating cotton 230 in this embodiment are all of a uniform thickness structure, so that the structure stability is improved, and the effect of uniform heat insulation can be achieved.

The smoke generating apparatus 1 provided in this embodiment may further include: an upper fixing member 30 and a lower fixing member 40. Both the upper fixing member 30 and the lower fixing member may be disposed in the housing 10 and connected to the housing 10 for fixing the heating device 20, for example, one end of the heat insulating metal pipe 220 may be fixed to the first housing 130 through the upper fixing member 30, and one end of the heat insulating metal pipe 220 remote from the upper fixing member 30 may be fixed to the first housing 130 through the lower fixing member 40.

Specifically, one end of the upper fixture 30 may be connected to the first housing 130 and may be disposed at the insertion port, and the other end may be assembled with the end of the heating tube 210 in a sealing manner, so as to prevent the aerosol generated after the heating tube 210 heats the aerosol-generating substrate from leaking out of the gap 240 between the upper fixture 30 and the heating tube 210, thereby improving the utilization rate of the aerosol-generating substrate. The heat insulating metal tube 220 is sleeved outside the heating tube 210 and the upper fixing member 30, and the inner wall of the heat insulating metal tube 220 is clamped with the upper fixing member 30. Similarly, one end of the lower fixing member 40 may be connected to the first housing 130, the other end is assembled with the end of the heating tube 210 away from the upper fixing member 30 in a sealing manner, the heat-insulating metal tube 220 is sleeved outside the heating tube 210 and the lower fixing member 40, and the inner wall of the heat-insulating metal tube 220 is clamped with the lower fixing member 40.

Referring to fig. 6 and 7, the upper fixture 30 may include: the body 310 and the stopper 320.

The body 310 may be annular and hollow, and the side surface of the body 310 may be hollow; the body 310 may be provided with a first clamping portion 330 for clamping with the heat insulating metal pipe 220 and a second clamping portion 340 for clamping with the heat insulating cotton 230, and it is understood that the diameter of the first clamping portion 330 is smaller than that of the second clamping portion 340.

One end of the limiting member 320 is connected with the body 310, and is disposed at a hollow portion of the body 310, and the other end extends toward the inside of the body 310, and the extending direction of the limiting member 320 is the same as the inserting direction of the aerosol generating substrate. The stoppers 320 may be used to limit the aerosol-generating substrate inserted into the aerosol-generating device 1, and further the number of stoppers 320 may be set to a plurality, for example 4 in the present embodiment, to ensure a good limiting effect.

Referring again to fig. 2, in some embodiments, the aerosol generating device 1 may further comprise: the sealing member 50 may be disposed at the lower fixture 40 between the lower fixture 40 and the heat insulating cotton 230 for sealing the gap 240 between the lower fixture 40 and the heat insulating cotton 230. The sealing member 50 may be made of elastic materials such as silicone rubber, etc., and the sealing member 50 and the lower fixing member 40 may be detachably connected, so as to facilitate the detachment and replacement of the sealing member 50.

According to the smoke generating device 1 provided by the embodiment of the utility model, the heating device 20 is arranged in the shell 10, the heating device 20 is arranged into the structure that the heating tube 210, the heat-insulating metal tube 220 and the heat-insulating cotton 230 are sleeved in sequence, heat generated by the heating tube 210 can be absorbed by the heat-insulating metal tube 220, after a certain amount of heat is absorbed by the heat-insulating metal tube 220, the redundant heat is radiated, and then the heat radiated by the heat-insulating metal tube 220 is absorbed by the heat-insulating cotton 230, so that the heat received by the shell 10 is little, the heat radiated by the heating tube 210 is reduced and can be transmitted to the shell 10, and more heat is used for adding aerosol generating matrixes, compared with the traditional smoke generating device, the heat utilization rate of the smoke generating device 1 provided by the embodiment can be improved by 10% -15%. The shell temperature of one aerosol generating substrate is reduced by about 3 ℃, the shell temperature of 3 aerosol generating substrates is continuously sucked by 5-6 ℃, and the energy utilization rate is improved.

In the present utility model, the terms "mounted," "connected," and the like should be construed broadly unless otherwise specifically indicated or defined. For example, the connection can be fixed connection, detachable connection, integral connection or transmission connection; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as a specific or particular structure. The description of the term "some embodiments" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In the present utility model, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples of the present utility model and features of various embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and they should be included in the protection scope of the present utility model.

Claims (10)

1. A smoke generating apparatus comprising:

a housing provided with an insertion hole for inserting an aerosol-generating substrate and an air intake hole for intake air; and

the heating device is arranged in the shell and comprises a heating tube, a heat-insulating metal tube and heat-insulating cotton, the heat-insulating metal tube is sleeved outside the heating tube, the heat-insulating cotton is coated outside the heat-insulating metal tube, an air flow channel is formed in the heating tube, and the air flow channel is communicated with the insertion hole and the air inlet hole.

2. The smoke-generating apparatus of claim 1 wherein said heat-insulating metal tube and said heat-generating tube form a gap therebetween.

3. A smoke-generating apparatus according to claim 2 wherein the gap has a width of from 2mm to 6mm.

4. The smoke-generating apparatus of claim 1 wherein said heat generating tube and said heat insulating metal tube are coaxially disposed.

5. The smoke generating apparatus of claim 1 wherein said housing comprises a first shell, said insertion aperture being provided in said first shell, said smoke generating apparatus further comprising an upper fixing member, one end of said heat insulating metal tube being fixed to said first shell by said upper fixing member.

6. The smoke generating apparatus of claim 5 wherein said upper fixture has one end connected to said first housing and the other end sealingly engaged with an end of said heat pipe, said heat insulating metal tube is disposed over said heat pipe and said upper fixture, and said heat insulating metal tube has an inner wall in engagement with said upper fixture.

7. The smoke-generating apparatus of claim 6 further comprising a lower fixture, wherein an end of said insulated metal tube remote from said upper fixture is secured to said first housing by said lower fixture.

8. The smoke generating apparatus of claim 7 wherein one end of said lower fixture is connected to said first housing and the other end is sealingly mounted to the end of said heat pipe remote from said upper fixture, said heat insulating metal tube is sleeved outside said heat pipe and said lower fixture, and the inner wall of said heat insulating metal tube is in snap engagement with said lower fixture.

9. The aerosol generating device of claim 7, further comprising a seal disposed on the lower fixture and between the lower fixture and the insulating wool for sealing a gap between the lower fixture and the insulating wool.

10. The aerosol generating device of claim 1, wherein the thickness of the insulating metal tube is 0.1mm to 0.3mm and the thickness of the insulating cotton is 1mm to 3mm.