CN211832831U

CN211832831U - Aerosol generating device

Info

Publication number: CN211832831U
Application number: CN201922494869.7U
Authority: CN
Inventors: 周国俊; 王骏; 储国海; 肖卫强; 徐建; 卢昕博
Original assignee: China Tobacco Zhejiang Industrial Co Ltd
Current assignee: China Tobacco Zhejiang Industrial Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-03
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to an aerosol generating device, which comprises a shell, a first part and a second part, wherein the first part and the second part are hollow inside, the first part is provided with an air inlet hole, and the shell is also provided with a switch button; the heating component is arranged on the first part and comprises a heating element, a heat insulating piece, a first support and a second support, wherein the heating element, the heat insulating piece, the first support and the second support are sequentially arranged outwards along the radial direction, the first support and the second support are used for fixedly sealing the heating element and two ends of the heat insulating piece, the heating element is hollow to form a cavity for accommodating at least one part of pumpable materials and heating the pumpable materials, the top of the heating element is provided with an opening communicated with the cavity, the pumpable materials can be received in the cavity or moved out of the cavity through the opening, the heating element and the heat insulating piece are provided with a distance to form a first air medium layer, and the real heat; and the circuit component is arranged on the second part and comprises a power supply, a circuit and a charging element. The utility model discloses can prevent the heat to disperse and promote the heat utilization.

Description

Aerosol generating device

Technical Field

The utility model relates to a novel tobacco heating incombustible smoking set field, concretely relates to aerial fog generates device.

Background

Smoking articles (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning products by making products that release compounds without burning.

An example of such a product is a heating device that releases a compound by heating rather than burning the material. For example, the material may be tobacco or other non-tobacco products, which may or may not include nicotine. Aerosol providing articles, such as so-called e-cigarette devices, exist. The known heating device dissipates heat from the interior more rapidly during heating, resulting in a reduction of the internal heat and a resulting increase in the temperature of the outer shell which causes scalding; affecting the experience and effectiveness of the puff.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of heat diffusion in the heating device heating process among the prior art, the utility model discloses implement and provide an aerial fog generation device that can prevent the heat to disperse and promote the heat utilization.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an aerosol-generating device comprising

The air conditioner comprises a shell, a first air inlet and a second air inlet, wherein the shell is provided with a first part and a second part which are hollow inside;

the heating component is arranged on the first part and comprises a heating element, a heat insulating piece, a first support and a second support, wherein the heating element, the heat insulating piece, the first support and the second support are sequentially arranged outwards along the radial direction, the first support and the second support are used for fixedly sealing the heating element and two ends of the heat insulating piece, the heating element is internally hollow to form a cavity for accommodating at least one part of pumpable materials and heating the pumpable materials, the top of the heating element is provided with an opening communicated with the cavity, the pumpable materials can be received in the cavity or moved out of the cavity through the opening, the heating element and the heat insulating piece are provided with a distance to form a first air medium layer, and the real;

the circuit component is arranged on the second part and comprises a power supply, a circuit and a charging element, the power supply is electrically connected with the switch key, the power supply provides power for the heating component, and the circuit is used for managing and controlling the function implementation of the aerosol generating device.

Preferably, the second bracket and the first bracket respectively seal the space between the heat insulation part and the heating element from the upper end and the lower end, the first bracket is provided with a channel, and the channel penetrates into the cavity from the first bracket, so that the air inlet hole is communicated with the cavity through airflow.

Preferably, the heat insulation piece comprises an inner wall, an outer wall and a central area, wherein the inner wall and the outer wall are sequentially arranged from inside to outside along the radial direction, the central area is located between the inner wall and the outer wall, the central area is a vacuum layer, a first air medium layer is formed between the inner wall and the heating element, and a second air medium layer is formed between the outer wall and the shell.

Preferably, the first support is provided with at least two sections of steps with sequentially reduced outer diameters, and at least one part of the step with the minimum outer diameter at the foremost end extends into the chamber, so that the bottom of the chamber forms a part with a reduced inner diameter.

Preferably, the position of the air inlet hole on the shell is higher than the position of the bottom end of the heating element in the shell.

Preferably, the position of the air inlet is staggered relative to the position of the channel at the port of the outer side wall of the first bracket along the circumferential direction.

Preferably, the heating device further comprises a fixed seat, the inner space of the shell is divided into separate compartments which are sealed from each other up and down, namely the first part and the second part, and the heating component is mounted on the fixed seat.

Preferably, the first part and the second part are arranged in sequence along the length direction of the shell.

Preferably, the heating element is provided with a temperature sensor.

Preferably, a hollow tube is further arranged in the cavity, and at least a part of the hollow tube has inner diameters which are sequentially reduced along the length direction.

The utility model discloses with being equipped with the interval between heating element and the heat insulating part, rather than closely laminating, form first air dielectric layer, can fill the air and insulate against heat between heating element and heat insulating part, reduce heating element's heat and along the conduction to the periphery, provide the heat utilization ratio, will be equipped with the interval between heat insulating part and the casing simultaneously, form second air dielectric layer, further prevent that radial ascending heat from scattering and disappearing.

Furthermore, the first support and the second support are arranged to fixedly seal the heat insulation piece and the heating element from the lower end and the upper end respectively, so that the heat insulation piece and the heating element are closed and isolated in space along the radial direction, air flow in the suction process is free of convection or conduction, smooth suction is guaranteed, and substances adhered to the outer surface of the heating element can be prevented from entering the cavity after being heated at high temperature, so that the suction taste of the smokeable material is influenced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an exploded view of the various parts of the present invention.

Fig. 3 is a schematic sectional structure of the present invention.

Fig. 4 is a schematic structural view of the heating assembly 60 of the present invention.

Fig. 5 is a schematic cross-sectional view of the heating assembly 60 of the present invention.

Fig. 6 is an exploded view of the heating assembly 60 of the present invention.

Fig. 7 is a schematic cross-sectional view of the heater element 61 of fig. 6.

Fig. 8 is a schematic diagram of the heating element 61 after the conductive heating layer is unfolded.

Fig. 9 is a schematic view of the heating curve of the present invention.

The first portion 10, the second portion 20, the switch button 30, the charging element 40, the circuit 50, the heating assembly 60, the battery cell 70, the air inlet 11, the first notch 12, the charging hole 21, the second notch 22, the heating element 61, the temperature sensor 62, the first bracket 63, the second bracket 64, the heat insulator 65, the fixing seat 66, the chamber 611, the first conductive pin 612, the heat pipe 613, the resistance heating trace 614, the protection layer 615, the second conductive pin 621, the channel 631, the first step 632, the second step 633, the outer wall 651, the inner wall 652, the central area 653, and a are made of a pumpable material.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," "retained," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below 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.

An aerosol-generating device as shown in figures 1 to 3 for receiving smokable material and heating it to volatilise at least one volatile component thereof to form an aerosol for inhalation; based on the above, the aerosol generating device comprises a shell, the overall shape of which is in the form of an elongated member, the shell is formed by a first part 10 and a second part 20 which are sequentially arranged along the length direction and are both hollow, the first part 10 is provided with an air inlet 11, the shell is further provided with a switch key 30, specifically, the first part 10 is provided with a first notch 12 facing the second part 20, and the second part 20 is provided with a second notch 22 opposite to the first notch 12; the first and

second indentations

12 and 22 form a space for receiving and mounting the switch key 30,

the switch key 30 is fixedly kept on the shell;

a heating element 60 for receiving at least a portion of the smokable material and heating it to generate an aerosol, the heating element 60 being of cylindrical shape received within the first part 10 and extending along the length of the device, the cylindrical interior space of the heating element 60 forming a chamber 611 for receiving the smokable material and heating it, the smokable material being heated by heating the periphery of the smokable material when received within the chamber 611;

the circuit 50 assembly, provided in the second part 20, comprises a power source 70, a circuit 50 and a charging element 40, said circuit 50 being used for management and control of the implementation of the functions of the aerosol-generating device.

As shown in fig. 4 to 6, the heating assembly 60 includes a tubular heating element 61, a vacuum heat insulation member 65, and a first bracket 63 and a second bracket 64 which are arranged in a manner of being fixed and closed to the heating element 61 and the vacuum heat insulation member 65 in a radial direction, the heating element is hollow to form a chamber 611 for accommodating at least a part of the smokable material and heating, the top of the heating element is provided with an opening communicating with the chamber 611, the smokable material can be received in the chamber 611 or removed from the chamber 611 through the opening, the heating element 61 and the vacuum heat insulation member 65 are arranged with a distance not in close contact with each other and form a first air medium layer, and the vacuum heat insulation member 65 is arranged with a distance from the housing and form a second air medium layer to prevent heat of the heating element 61 from being radiated in a radial direction.

Preferably, the vacuum insulation tube 65 has an inner tube wall 652 and an outer tube wall 651, and a central region 653 located between the inner tube wall 652 and the outer tube wall 651, the pressure of the central region 653 being configured to be lower than the pressure outside the vacuum insulation tube 65, i.e., to have a certain degree of vacuum, so as to reduce the radiation and diffusion of heat of the tubular heating element 61 from the radial direction to the outside; preferably, the inner tube wall 652 and the outer tube wall 651 are made of stainless steel, PEEK (polyether ether ketone), glass, ceramic, polyimide, or the like, and in order to further improve the heat insulation effect, a certain distance is provided between the inner tube wall 652 of the vacuum heat insulation tube 65 and the tubular heating element 61, instead of being tightly attached, so that a certain amount of air can be filled between the inner tube wall 652 and the tubular heating element 61 to promote heat insulation.

As shown in fig. 5 to 6, the heating assembly 60 further includes a first bracket 63 and a second bracket 64 respectively disposed at both ends of the tubular heating element 61, the first bracket 63 is mounted at a lower end portion of the tubular heating element 61, and the first bracket 63 includes a shape design having a plurality of sections of sequentially reduced outer diameters, thereby forming a plurality of steps on an outer sidewall, such as a first step 632 and a second step 633 shown in fig. 6; wherein, the first step 632 is used for the lower end of the tubular heating element 61 to be sleeved and form the butt joint and fix, the second step 633 is used for the lower end of the vacuum heat insulation pipe 65 to be sleeved and form the butt joint and fix, the second bracket 64 pipe 64 is installed at the upper end of the tubular heating element 61, the inner wall surface of the second step is abutted against the upper end of the tubular heating element 61, the outer wall surface of the second step is abutted against the upper end of the vacuum heat insulation pipe 65, and the size of the second step is set so that the first step, the second step, the third step, the fourth step.

Preferably, at least a portion of the leading end of the first support 63 having the smallest outer diameter projects into the chamber 611, so that the chamber 611 is formed with a region of reduced inner diameter, so that the smokable material A can abut against this region, thereby providing a stop effect for the smokable material A.

As shown in fig. 3 to 6, based on the smooth flow of the air flow during the suction process, the first portion 10 of the housing is opened with an air inlet hole 11, and the first bracket 63 is opened with an air flow channel 631, and according to fig. 6, the air flow channel 631 penetrates from the outer side wall of the first bracket 63 to the hollow space, so that the air flow communication is formed between the air inlet hole 11 and the chamber 611, as shown by the arrow R in fig. 6.

Preferably, the vacuum insulation member 65 does not completely cover the end of the air flow channel 631 located at the outer side wall after being assembled with the first bracket 63, and a certain gap is left to ensure smooth air flow.

Preferably, the air inlet holes 11 are positioned at a higher level than the lower end of the tubular heating element 61 so that when air is drawn into the tubular heating element 61 in the direction of arrow R in fig. 6 during the drawing process, at least a portion of the air flow extends in the space between the outer tube wall 652 of the vacuum insulation tube 65 and the inner wall of the first portion 10, and the void or the heat circulation of the outer tube wall 652 can be carried back into the chamber 611 to heat the smokable material, while reducing the outward diffusion of heat and improving the efficiency of utilization.

In order to facilitate the installation and fastening of the whole heating assembly 60 in the shell, the heating assembly 60 further comprises a fixing seat 66, the cross section of the fixing seat 66 is matched with the first part 10, the fixing seat is made of materials such as hard silica gel and plastic, the materials can be fastened in the shell, and then the heating assembly 60 is assembled and then fixed with the fixing seat 66 through mechanical structures, welding and other modes.

And the holders 66 divide the space inside the housing into mutually closed and independent spatial compartments, the first portion 10 located above the holders 66 is primarily configured for housing as a heating assembly 60, while the second portion 20 located below the holders 66 is primarily configured for housing and mounting as an electrical circuit 50, a battery cell 70, etc., and the first portion 10 and the second portion 20 below are hermetically sealed to minimize or prevent air or aerosol from flowing between the compartments.

The upper outer surface of the heating element 61 is provided with a temperature sensor 62, so that the operation temperature of the tubular heating element 61 is monitored, and the temperature control in the heating process is facilitated.

Based on the mode of electric heating of the aerosol-generating device, a battery cell 70 for supplying power is installed in the second portion 20, and a charging hole 21 for connecting with an external charging device and then charging the battery cell 70 is arranged at the end of the second portion 20 away from the first portion 10; the charging element 40 in the second portion 20 is connected to the battery cell 70, and based on the fact that the charging element 40 shown in fig. 2 is preferably implemented as a USB interface charging assembly, the charging element 40 at least partially penetrates through the charging hole 21 during installation, so that connection with an external power supply device can be facilitated.

In order to facilitate the electrical connection between the tubular heating element 61 and the temperature sensor 62, the tubular heating element 61 penetrates the fixing base 66 along the length direction of the housing through the first conductive pin 612 to be connected with the circuit 50, and the temperature sensor 62 penetrates the fixing base 66 along the length direction of the housing through the second conductive pin 621 to be connected with the circuit 50.

Preferably, as shown in fig. 7 to 8, the tubular heating element 61 includes a heat conductive pipe 613, a resistance heating trace 614 and a protective layer 615 which are arranged in this order from inside to outside in the radial direction; wherein,

the resistance heating trace 614 is mainly used for heating by an electrical means, and in order to have good resistance and thermal efficiency, the shape thereof is a grid as shown in fig. 8, or a trace in a shape of patterning, bending, etc.; the material can be pure nickel, nickel-chromium alloy, nickel-iron alloy, iron-chromium-aluminum alloy, titanium alloy or stainless steel, etc. In a further preferred embodiment, the resistive heating trace 614 may include at least one and a plurality of spaced resistive heating circuits, which are preferably made of a material having a positive or negative temperature coefficient of resistance, such as platinum, tungsten, iron-nickel-aluminum alloy, etc., so as to serve as both resistive heaters and temperature sensors 62.

The inner space of the heat pipe 613 is configured as the chamber 611, which is made of a material with good heat conductivity, and may include a metal or an alloy material, and a non-metal material, such as stainless steel, an aluminum alloy, a zinc alloy, a copper alloy, etc.; or a highly thermally conductive metal oxide, nitride, carbide material such as aluminum oxide, magnesium oxide, nickel oxide, aluminum nitride, silicon nitride, boron nitride, silicon carbide, etc. Functionally, the heat pipe 613 is used for uniform heat transfer, so that the heat generated by the resistive heating traces 614 can be uniformly applied to the smokable material a for uniform heating.

Further, the resistive heating traces 614 may be formed by etching, cutting, etc. of a sheet substrate and then bonded to the outer surface of the heat pipe 613, or formed on the outer surface of the heat pipe 613 by printing, depositing, sputtering, etc.; therefore, in practice, the outer surface of the resistance heating trace 614 further has a protective layer 615, which may be made of thin ceramic, glaze, glass, etc. to prevent the resistance heating trace 614 from wrinkling, unevenness, deformation, abrasion, etc. during installation or use. Alternatively, in practice, the protection layer 615 may be formed by using a tube-like member such as a ceramic tube, a PPEK tube, or a glass tube, which is sleeved on the heat conduction tube 613 containing the resistance heat trace 614, or formed by coating, spraying, or brushing the material used on the heat conduction tube 613 containing the resistance heat trace 614 and then curing the material.

Based on good control of the process of generating an aerosol from smokable material, the circuit 50 in one embodiment preferably uses a heating profile as shown in figure 9 to control the heating temperature of the tubular heating element 61, in particular the heating temperature profile during smoking comprises:

a first stage (rapid temperature rise stage) S110 of rapidly increasing the temperature from the initial temperature to a first temperature of about 257 ℃;

a second stage (pre-heating stage) S120 of pre-heating at the first temperature for about 40S;

a third stage (cooling stage) S130, after preheating, naturally cooling to the second temperature of about 215 ℃ for about 15S;

a fourth stage (pumping stage) S140 of heating the temperature maintained in a small fluctuation range between 217 ℃ and 214 ℃ until pumping is finished; or in other possible variant implementations, this phase can also be carried out in a manner that is maintained constant at 215 ℃.

In the above embodiment, the total time of the cooling phase and the pumping phase can be controlled to be about 180 s.

In the above embodiment, the circuit 50 controls to heat at different stages and different heating temperatures, so as to ensure that the heating mode in the pumping process is the most suitable heating curve, and maximally improve the heat utilization efficiency and the pumping taste. Of course, during heating, the circuit 50 adjusts the power output from the power source 70 in real time by receiving the sensed temperature data of the temperature sensor 62, so that the operating temperature of the tubular heating element 61 can be maintained at the target temperature required by the heating curve.

The utility model discloses be equipped with the interval between heating element 61 and the heat insulating part 65, rather than closely laminating, form first air dielectric layer, can fill the air and insulate against heat between heating element 61 and heat insulating part 65, reduce heating element's heat and along the conduction to the periphery, provide the heat utilization ratio, be equipped with the interval simultaneously between heat insulating part 65 and the casing, form second air dielectric layer, further prevent that radial ascending heat from scattering and disappearing.

Further, the first bracket 63 and the second bracket 64 are respectively arranged to fixedly seal the heat insulating member 65 and the heating element 61 from the lower end and the upper end, so that the heat insulating member 65 and the heating element 61 are closed and isolated in the space along the radial direction, and thus, the air flow in the suction process is free from convection or conduction, the suction is smooth, and simultaneously, substances adhered to the outer surface of the heating element 61 can be prevented from entering the cavity 611 after being heated at high temperature, and the suction taste of the smokeable material is affected.

It should be noted that the above embodiments are merely representative examples of the present invention. The utility model can also have a plurality of deformations. Any simple modification, equivalent changes and modifications made to the above embodiments according to the essence of the present invention should be considered as belonging to the protection scope of the present invention.

Claims

1. An aerosol-generating device, characterized by: comprises that

The air conditioner comprises a shell, a first part (10) and a second part (20) which are hollow inside, wherein the first part (10) is provided with an air inlet hole (11), and the shell is also provided with a switch key (30);

a heating component (60) arranged on the first part (10) and comprising a heating element (61), a heat insulating piece (65) and a first bracket (63) and a second bracket (64) which fixedly seal the heating element (61) and two ends of the heat insulating piece (65) in sequence along the radial direction, wherein the heating element is internally hollow to form a chamber (611) for containing at least a part of the smokable material and heating, the top of the heating element is provided with an opening communicated with the chamber (611), the smokable material can be received in the chamber (611) or removed from the chamber (611) through the opening, the heating element (61) and the heat insulating piece (65) are provided with a distance and form a first air medium layer, and a distance and a second air medium layer are formed between the heat insulating piece (65) and the shell;

a circuit assembly, arranged in the second portion (20), comprising a power source, a circuit and a charging element (40), the power source being electrically connected to the switch button (30), the power source providing power to the heating assembly (60), the circuit (50) being used for management and control of the implementation of functions of the aerosol-generating device.

2. An aerosol-generating device according to claim 1, wherein the second holder (64) and the first holder (63) close the space between the heat insulating member (65) and the heating element (61) from the upper and lower ends, respectively, and the first holder (63) has a passage extending from the first holder (63) into the chamber (611), thereby providing air flow communication between the air inlet (11) and the chamber (611).

3. An aerosol-generating device according to claim 1, wherein the thermal insulation member (65) comprises an inner wall (652), an outer wall (651) and a central region located between the inner wall (652) and the outer wall (651) in the radial direction, the central region being a vacuum layer, a first air dielectric layer being formed between the inner wall (652) and the heating element (61), and a second air dielectric layer being formed between the outer wall (651) and the housing.

4. An aerosol-generating device according to claim 2, wherein the first support (63) is provided with at least two steps of successively decreasing outer diameter, the step of the leading end having the smallest outer diameter extending at least partially into the chamber (611) such that the bottom of the chamber (611) forms a portion of decreasing inner diameter.

5. An aerosol-generating device according to claim 2 in which the air inlet (11) is located at a higher level in the housing than the lower end of the heater element (61).

6. An aerosol-generating device according to claim 2 in which the inlet apertures (11) are located circumferentially offset from the channel at the outer side wall of the first holder (63).

7. An aerosol-generating device according to claim 1, further comprising a mounting block (66) dividing the interior space of the housing into separate compartments enclosed one above the other, namely the first part (10) and the second part (20), wherein the heating element (60) is mounted on the mounting block (66).

8. An aerosol-generating device according to claim 1 in which the first part (10) and the second part (20) are arranged in series along the length of the housing.

9. An aerosol-generating device according to claim 1 in which the heating element (61) is provided with a temperature sensor (62).

10. An aerosol-generating device according to claim 1, wherein the chamber (611) further comprises a hollow tube having at least a portion of a length that decreases in diameter.