CN221430317U - Aerosol heating member and aerosol generating device - Google Patents

Abstract

The application discloses an aerosol heating component and an aerosol generating device. The aerosol heating component of the embodiment of the application is provided with a first accommodating cavity, a second accommodating cavity and an air passage, wherein the first accommodating cavity is used for accommodating aerosol generating substrates and is communicated with one end of the air passage, the second accommodating cavity is used for accommodating a heat source and is arranged adjacent to the air passage and is mutually isolated from the air passage, and the other end of the air passage is communicated with the atmosphere. In the aerosol generating device of the embodiment of the application, the gas flowing through the air passage is heated by the second accommodating cavity to form high-temperature gas and enters the first accommodating cavity, and the aerosol generating substrate is heated in a convection mode, so that the aerosol generating substrate can be heated at a relatively uniform low temperature to form aerosol, and the aerosol is not easy to bake excessively, thereby improving the quality of the generated aerosol and improving the taste of the aerosol.

Description

Aerosol heating member and aerosol generating device

Technical Field

The application relates to the technical field of aerosol generating devices, in particular to an aerosol heating component and an aerosol generating device.

Background

In the related art, an aerosol-generating device heated by gas mainly includes an aerosol-receiving cavity and a heating device, and generates heat by the gas burned in the heating device, heats an aerosol-generating substrate in the aerosol-receiving cavity in a heat transfer manner, and generates aerosol for suction. The aerosol-generating substrate is directly heated by means of heat transfer, contact surfaces are needed between the aerosol-generating substrate and the aerosol-receiving cavity, and between the aerosol-receiving cavity and the combustion heat source, and the temperature of the aerosol-generating substrate is easily too high, so that the aerosol generated is over-baked, and the generated aerosol is easy to have a burnt smell.

Disclosure of utility model

The application provides an aerosol-heating member and an aerosol-generating device.

The aerosol heating component comprises a first accommodating cavity, a second accommodating cavity and an air channel, wherein the first accommodating cavity is used for accommodating aerosol generating substrates and is communicated with one end of the air channel, the second accommodating cavity is used for accommodating a heat source and is arranged adjacent to the air channel and isolated from the air channel, and the other end of the air channel is communicated with the atmosphere.

In the aerosol generating device of the embodiment of the application, the gas flowing through the air passage is heated by the second accommodating cavity to form high-temperature gas and enters the first accommodating cavity, and the aerosol generating substrate is heated in a convection mode, so that the aerosol generating substrate can be heated at a relatively uniform low temperature to form aerosol, and the aerosol is not easy to bake excessively, thereby improving the quality of the generated aerosol and improving the taste of the aerosol.

In some embodiments, the heat source is a combustible heat source.

In this way, the second receiving chamber can heat the gas flowing through the gas passage using the heat generated by the combustion.

In some embodiments, the aerosol-heating component forms a vent in communication with the second receiving cavity, the vent being isolated from the airway.

Therefore, after the high-temperature air flow formed by combustion rises to the top of the second accommodating cavity, the air can flow out through the exhaust holes, so that the reflux phenomenon of hot air flow is reduced, and the energy efficiency is improved.

In some embodiments, a porous structure is disposed within the second receiving chamber.

In this way, the flame can be locked on the inner ring of the second accommodating cavity through the porous structural part, so that the inner wall of the second accommodating cavity is easy to maintain the heating temperature.

In some embodiments, the air channel extends helically from the second receiving chamber in a direction of the first receiving chamber.

Therefore, the air passage extends in a spiral shape, so that the length of the air passage can be prolonged, the heat capacity is increased, and the heat preservation effect of the air passage is improved.

In some embodiments, the aerosol-heating component comprises a cavity and a housing, the cavity forming a first receiving cavity and a second receiving cavity, the housing being disposed outside the second receiving cavity, the cavity and the housing being in conforming and sealing connection, an outer wall of the cavity defining an air passage with the housing. In some embodiments, the outer wall of the cavity is formed with a recess, and the cover covers the recess such that the recess and the cover define an air passage. In some embodiments, the inner wall of the housing is formed with a groove facing the housing such that the groove defines an air passage with the outer wall of the cavity.

In this way, the cavity is heated by the heat of the combustion of the gas in the second accommodating cavity, and the gas in the air passage can be heated. Through sealing connection between the cavity and the outer cover, a closed air passage can be formed at the groove, and gas or combustion waste gas is prevented from being mixed in aerosol.

In some embodiments, the cavity includes a cavity wall and a partition within the cavity wall that separates a space within the cavity wall to form the second receiving cavity and the first receiving cavity.

In this way, the first accommodating cavity and the second accommodating cavity are separated by the partition plate, so that gas, combustion waste gas and the like can be prevented from being mixed into aerosol generating matrixes or aerosols, and the risk that the gas or the combustion waste gas is inhaled by a user is reduced.

In some embodiments, the air channel includes an air inlet and an air outlet, the air outlet communicates with the first receiving chamber, the air inlet is formed in the chamber, and the air inlet is located at an end of the chamber remote from the first receiving chamber.

In this way, the first accommodating cavity is communicated with the air outlet, so that the hot air flowing through the air passage enters the first accommodating cavity from the air outlet, and the hot air can be utilized to heat the aerosol generating substrate. The air inlet is formed in one end, far away from the first accommodating cavity, of the cavity, so that the volume space of the cavity can be effectively utilized, and meanwhile, the probability of aerosol entering the air passage can be reduced.

In some embodiments, the aerosol-heating component comprises an air inlet tube, a first end of the air inlet tube is in communication with the air inlet, the air inlet tube is curved, and at least a portion of the air inlet tube is located on one lateral side of the cavity.

In this way, the air inlet duct may intensively introduce cool air to the air inlet for absorbing heat from the second receiving chamber and transferring the heat to the aerosol-generating substrate. At least one part of the air inlet pipe is positioned on one lateral side of the cavity, so that combustion waste gas can be further prevented from being introduced into the air inlet pipe and the air passage, and the safety of gas entering the first accommodating cavity is ensured.

An aerosol-generating device according to an embodiment of the application comprises an aerosol-heating member according to any of the embodiments described above.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic view of the structure of an aerosol-heating member according to an embodiment of the present application;

FIG. 2 is a schematic structural view of an aerosol-heating component of an embodiment of the present application;

FIG. 3 is a schematic view of the structure of an aerosol-heating member according to another embodiment of the present application;

FIG. 4 is a schematic top view of an aerosol-heating component according to an embodiment of the application;

FIG. 5 is a schematic cross-sectional view of the aerosol-heating member of FIG. 4 taken along the direction A-A;

FIG. 6 is a schematic view of the structure of an aerosol-heating member according to yet another embodiment of the present application;

FIG. 7 is a schematic bottom view of an aerosol-heating component according to yet another embodiment of the present application;

FIG. 8 is an exploded view of the aerosol-heating component of FIG. 7;

FIG. 9 is a schematic cross-sectional view of the aerosol-heating member of FIG. 7 taken along the B-B direction;

fig. 10 is a schematic structural view of an aerosol-generating device according to an embodiment of the application.

Reference numerals illustrate:

The aerosol-heating component 100, the first receiving chamber 10, the second receiving chamber 20, the air duct 30, the air inlet 31, the air outlet 32, the air outlet aperture 40, the porous structure 50, the air inlet tube 60, the first end 61, the second end 62, the chamber body 110, the chamber wall 111, the baffle 112, the housing 120, the recess 130;

an aerosol-generating device 1000, an aerosol-forming substrate 200.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "transverse," "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 to 5, an aerosol-heating device 100 according to an embodiment of the present application is provided with a first accommodating chamber 10, a second accommodating chamber 20, and an air passage 30. The first receiving chamber 10 is for receiving an aerosol-generating substrate 200 and communicates with one end of the airway 30. The second accommodating chamber 20 accommodates a heat source and is disposed adjacent to the air duct 30 and isolated from each other. The other end of the air passage 30 is in communication with the atmosphere. In the aerosol-generating device 1000 according to the embodiment of the present application, the gas flowing through the air duct 30 is heated by the second accommodating chamber 20 to form a high-temperature gas and enters the first accommodating chamber 10, and the aerosol-generating substrate 200 is heated by convection, so that the aerosol-generating substrate 200 can be heated at a relatively uniform low temperature to form an aerosol, and the aerosol is not easy to bake excessively, thereby improving the quality of the generated aerosol and improving the taste of the aerosol.

In particular, the aerosol-generating substrate 200 may be at least partially inserted into the first receiving cavity 10. The cross-sectional shape of the first receiving cavity 10 includes, but is not limited to, circular, oval, square, rectangular, polygonal, etc., and the cross-sectional shape, size of the first receiving cavity 10 may match the cross-sectional shape, size of the aerosol-generating substrate 200. The isolation of the first receiving chamber 10 from the second receiving chamber 20 may reduce intrusion of aerosol-generating substrate 200 and aerosol, maintaining the integrity of the aerosol-generating substrate 200 and the purity of the aerosol.

The second receiving chamber 20 may receive a heat source that generates heat in the second receiving chamber 20 to form a heating environment. The heat source may be a combustion heat source, a thermal resistance heat source, an electromagnetic excitation source, or the like. The heat generated in the second receiving chamber 20 may be transferred to the first receiving chamber 10 by one or more of heat radiation, heat transfer, convection heat exchange, etc. for heating the aerosol-generating substrate 200. To facilitate heat transfer, the second receiving chamber 20 is opposite to the first receiving chamber 10 and is compactly disposed. The first receiving chamber 10 may be provided separately from the second receiving chamber 20, and in case the second receiving chamber 20 receives a combustible heat source, the aerosol-generating substrate 200 and the generated aerosol may be protected from the combustion flame and the exhaust gas.

The second receiving chamber 20 may have the same or different cross-sectional shape as the first receiving chamber 10. Illustratively, as shown in fig. 1, the first accommodating chamber 10 and the second accommodating chamber 20 are coaxial cylindrical, and the first accommodating chamber 10 is disposed at the top of the second accommodating chamber 20, which is advantageous in that the overall structure of the aerosol-heating member 100 is relatively compact, while the natural rise of the hot air flow can be utilized to reduce power consumption.

The air duct 30 may be disposed at a side of the second accommodating chamber 20, may extend from an end of the second accommodating chamber 20 remote from the first accommodating chamber 10 toward the first accommodating chamber 10, and finally opens into the first accommodating chamber 10. The air duct 30 is thermally connected to the second accommodating chamber 20, and heat generated in the second accommodating chamber 20 can be transferred to the air duct 30 by heat radiation, heat transfer, or the like, to heat the gas passing through the air duct 30. The cold air entering the air duct 30 may be heated to hot air, which in turn enters the first receiving chamber 10, and the hot air may diffuse to the entire area of the aerosol-generating substrate 200, heating the aerosol-generating substrate 200 uniformly and rapidly, generating an aerosol.

Upon user suction, the hot air is sucked into the first receiving chamber 10 to be heated. During heating, the temperature of the region of the first receiving chamber 10 where the air passage 30 is connected is highest. In the embodiment shown in fig. 2, the air duct 30 and the second accommodating chamber 20 are located at the bottom of the first accommodating chamber 10, and the average temperature of the bottom of the first accommodating chamber 10 can reach 280-300 ℃ under the heating of hot air, so as to meet the aerosol generating temperature. The temperature of the first receiving chamber 10 gradually decreases from the bottom to the top during heating, so that the aerosol-generating substrate 200 may be heated at a relatively low temperature, which is less prone to overdaking.

The aerosol generated by the heating of the aerosol-generating substrate 200 may be dispersed from the first receiving chamber 10 to the exterior of the aerosol-heating member 100. The user can inhale the aerosol through the mouth or nose, and the aerosol can carry the effective substance into the respiratory system of the user for eating or medicinal use by the user. The user may also deliver the aerosol to the area of use by suction means (not shown) for use in industrial production, environmental beautification, etc.

In some embodiments, the heat source is a combustible heat source.

In this manner, the second receiving chamber 20 can heat the gas passing through the gas passage 30 using the heat generated by the combustion.

In particular, combustible heat sources include, but are not limited to, gas, carbon heating, metal combustion, and the like. In some embodiments, the gas is ignited and burned in the second receiving chamber 20 by flowing the gas into the second receiving chamber 20, thereby generating heat to heat the gas flow in the side air duct 30 of the second receiving chamber 20. The fuel gas may include, but is not limited to, natural gas, liquefied petroleum gas, biogas, and the like.

Referring to fig. 1-3, in some embodiments, the aerosol-heating component 100 forms a vent 40, the vent 40 being in communication with the second receiving chamber 20, the vent 40 being isolated from the air channel 30.

In this way, after the high temperature air flow formed by combustion rises to the top of the second accommodating chamber 20, the air can flow out through the air outlet 40, thereby reducing the reverse flow phenomenon of the hot air flow and improving the energy efficiency.

Specifically, the exhaust hole 40 communicates the second accommodating chamber 20 with the external environment of the aerosol-heating member 100, so that oxygen or air required for combustion of the gas can enter the second accommodating chamber 20 through the exhaust hole 40, and hot air flow formed by combustion can be exhausted from the exhaust hole 40. The exhaust hole 40 is disposed at least at the top of the second receiving chamber 20, and may extend from the top of the second receiving chamber 20 to the bottom of the second receiving chamber 20. The exhaust hole 40 may be provided at a side of the second receiving chamber 20 spaced apart from the air passage 30. The number of the air passages 30 and the air discharge holes 40 may be plural, and the plurality of air passages 30 and the air discharge holes 40 may be compactly and densely distributed at the circumferential side of the second accommodation chamber 20.

The combustible heat source burns in the second accommodating cavity 20, and usually, waste gas mainly containing carbon dioxide is formed, so that the waste gas is discharged in time, the combustion is prevented from being influenced by nonflammable gas such as carbon dioxide, and heat is more easily transferred to the bottom of the first accommodating cavity 10 along with natural rising of hot gas flow.

Referring to fig. 5 and 6, in some embodiments, a porous structure 50 is disposed within the second receiving chamber 20.

In this way, the flame can be locked to the inner circumference of the second receiving chamber 20 by the porous member 50, so that the inner wall of the second receiving chamber 20 easily maintains the heating temperature.

Specifically, the first accommodating chamber 10 is disposed above the second accommodating chamber 20, and the porous structure member 50 may be disposed above a flame formed by combustion of gas, and the porous structure member 50 is spaced apart from the inner wall of the second accommodating chamber 20 in each radial direction. The porous structure 50 can prevent flame from spreading and not prevent flame from burning, so that flame is controlled at the position of the porous structure 50, and thus fuel gas can burn at a fixed position to generate heat, so that heat dispersion is avoided, the wall temperature of the second accommodating cavity 20 is maintained in the heating process, and the heating temperature of hot air is maintained.

The porous member 50 is formed with a plurality of fine passages or slits through which gas such as fuel gas and oxygen gas can pass so that the fuel gas can be maintained to burn in the second accommodation chamber 20. The porous structure 50 may be a mesh structure or a multi-layered three-dimensional structure. It will be appreciated that when the flame burns the porous member 50, the porous member 50 can rapidly transfer heat to the areas not contacted by the flame based on excellent thermal conductivity, thereby uniformly heating the cavity 110. After passing through the plurality of fine passages, the gas may form a plurality of fine gas streams, so that the combustion of the gas is relatively uniform and the flow of the gas is more stable in the region of the porous structure 50. The large number of fine channels of the porous structure 50 increases the heat transfer area, and the enhanced heat transfer can enable the flame to easily drop below the ignition point when passing over the porous structure 50, so that the flame is limited at the position of the porous structure 50, thereby being beneficial to heat concentration and reducing heat loss.

The porous member 50 may be made of a metal material having good thermal conductivity, for example, a metal mesh made of aluminum alloy, stainless steel, other iron alloy, or the like.

In some embodiments, the porous structure 50 may also be made of a non-metallic material that is resistant to high temperatures and heat conduction, such as a porous heat conducting plate or mesh made of ceramic, asbestos, or the like.

Referring to fig. 2 and 5, in some embodiments, the air channel 30 extends in a spiral shape from the second accommodating chamber 20 toward the first accommodating chamber 10.

Thus, the air passage 30 extends in a spiral shape, so that the length of the air passage 30 can be prolonged, the heat capacity can be increased, and the heat insulation effect of the air passage 30 can be improved.

Specifically, the air duct 30 is spirally wound around the outer side of the second accommodating cavity 20, and the starting point of winding may be located at the end of the second accommodating cavity 20 away from the first accommodating cavity 10, and correspondingly, the ending point of winding is located at the end of the second accommodating cavity 20 adjacent to the first accommodating cavity 10. The length of the air passage 30 may be increased over a limited distance by the air passage 30 extending in a spiral shape relative to the air passage 30 extending in a straight line, so that the volume of the air that the air passage 30 can accommodate increases, and the amount of heat required per one degree of temperature increase, i.e., the heat capacity increases, so that the air flowing through the air passage 30 can absorb enough heat to heat the atomized aerosol-generating substrate 200, and the hot air flow is not easily warmed.

The second accommodating chamber 20 may have one, two, three or more air passages 30 on the peripheral side, and may have a plurality of spiral air passages 30, and the air passages 30 are distributed in a staggered manner on the peripheral surface of the second accommodating chamber 20. The air passage 30 extends in a spiral shape and can surround the first accommodating chamber 10, and the air passage 30 can surround the first accommodating chamber 10 for one week, half week, quarter week, etc. in the circumferential direction of the first accommodating chamber 10. The plurality of spiral air passages 30 jointly encircle at least one circle in the circumferential direction of the first accommodating cavity 10, so that heat emitted outwards by the first accommodating cavity 10 can be absorbed and utilized at all circumferential positions.

The exhaust holes 40 may be formed between every two adjacent spiral air passages 30 to extend in a spiral shape. The path along which the exhaust holes 40 extend may be parallel to the path along which the air path 30 extends.

Referring to fig. 3-5, in some embodiments, the aerosol-heating component 100 includes a cavity 110 and a housing 120, the cavity 110 forming a first receiving cavity 10 and a second receiving cavity 20, the housing 120 being disposed outside the second receiving cavity 20, an outer wall of the cavity 110 defining an air channel 30 with the housing 120.

In this way, the cavity 110, and thus the air flow in the air duct 30, can be heated by the second accommodation chamber 20.

Specifically, referring to fig. 8, the cavity 110 may form a cylindrical first accommodating cavity 10 and a cylindrical second accommodating cavity 20, and the cavities 110 of the first accommodating cavity 10 and the second accommodating cavity 20 may be integrally formed and connected as a whole. The outer cover 120 is covered outside the second accommodation chamber 20 opposite to a portion of the chamber 110 forming the second accommodation chamber 20 so as to form an air passage 30 between an outer wall of the chamber 110 and the outer cover 120.

The cavity 110 and the housing 120 may be made of a material resistant to high temperature, for example, a metal material such as ceramic or stainless steel may be used to make the cavity 110 and the housing 120. The cavity 110 and the outer cover 120 may be connected together by welding or sintering, and an interval between the cavity 110 and the outer cover 120, which is not bonded, may be reserved, so as to form the air passage 30. The combustion of the gas in the second accommodating chamber 20 generates heat, the chamber 110 and the outer cover 120 covered outside the second accommodating chamber 20 absorb the heat to raise the temperature, the cold air flows into the air passage 30, and the heat is absorbed by the outer wall of the chamber 110 and the surface of the outer cover 120 to form hot air, and the hot air then enters the second accommodating chamber 20 to heat the aerosol atomization substrate.

Referring to fig. 5 and 9, in some embodiments, the chamber 110 includes a chamber wall 111 and a partition 112 within the chamber wall 111, the partition 112 partitioning a space within the chamber wall 111 to form the second receiving chamber 20 and the first receiving chamber 10.

In this way, by separating the first accommodation chamber 10 and the second accommodation chamber 20 by the partition 112, it is possible to avoid mixing of fuel gas, combustion exhaust gas, etc. into the aerosol-generating substrate 200 or aerosol, reducing the risk of the fuel gas or combustion exhaust gas being inhaled by the user.

Specifically, the partition 112 may be integrally formed with the cavity wall 111 by using the same material, or may be formed with a different material from the cavity wall 111 and be hermetically connected to the cavity 110. The first receiving chamber 10 and the second receiving chamber 20 are hermetically isolated by the partition 112 to isolate the combustion site from the aerosol-generating site, thereby avoiding interaction of the aerosol-generating substrate 200 and the aerosol with the combustion gas.

The partition 112 may have a certain thermal conductivity, and heat generated in the second receiving chamber 20 may be transferred to the first receiving chamber 10 through the partition 112 in a heat transfer and heat radiation manner while heating the gas in the gas passage 30, thereby heating the aerosol-generating substrate 200.

Referring to fig. 1 and 5, in some embodiments, the outer wall of the cavity 110 is formed with a recess 130, and the cover 120 covers the recess 130 such that the recess 130 and the cover 120 define the air passage 30. In some embodiments, the inner wall of the housing 120 is formed with a groove 130, the groove 130 facing the housing 120 such that the groove 130 and the outer wall of the cavity 110 define the air channel 30.

In this way, the gas is contained in the outer wall of the chamber 110 or the inner wall of the housing 120 by providing the groove 130, so that the gas passage 30 is formed in the connection between the chamber 110 and the housing 120.

Specifically, the outer surface of the cavity 110 is bonded to the inner surface of the housing 120 without the grooves 130, and the outer surface of the cavity 110 is spaced from the inner surface of the housing 120 by the grooves 130 without bonding. The groove 130 may be continuously extended in a direction from the second receiving chamber 20 to the first receiving chamber 10, and extend from an end of the second receiving chamber 20 remote from the first receiving chamber 10 to the first receiving chamber 10. The grooves 130 may extend in a spiral shape, and accordingly, may form the spiral-shaped air passage 30.

Illustratively, as shown in fig. 5, the cavity wall 111 forming the second accommodating cavity 20 forms a groove 130 at the outer side, the outer cover 120 covers the outer surface of the cavity wall 111 outside the second accommodating cavity 20, the bottom of the groove 130 is close to the second accommodating cavity 20, the notch of the groove 130 faces the inner wall of the outer cover 120, the outer cover 120 covers the notch of the groove 130, and the groove 130 and the outer cover 120 define the air passage 30.

The bottom of the groove 130 may be a plane, an arc surface or a curved surface, and the inner wall of the notch may be a plane. In some embodiments, the outer wall of the cavity 110 and the inner wall of the housing 120 are each formed with a recess 130, the recess 130 on the cavity 110 being opposite the recess 130 on the housing 120, together defining the air channel 30. The width and depth of the groove 130 may define the tube diameter of the air channel 30, the depth of the groove 130 may be slightly less than the wall thickness of the cavity wall 111, and the width of the groove 130 may be approximately the depth of the groove 130. Multiple grooves 130 may be provided in the chamber wall 111 or the outer cover 120 in a close arrangement to form a fine air passage 30 to enhance heat transfer.

The cavity 110 and the outer cover 120 outside the second accommodating cavity 20 may form a hollow area, and the hollow area and the groove 130 do not interfere with each other, and may be that the hollow area is disposed between two adjacent grooves 130. The hollow areas of the cavity 110 and the outer cover 120 have the same shape and size, and when the outer cover 120 is covered on the cavity 110, the hollow areas formed by the cavity 110 and the outer cover 120 overlap, so that the hollow areas overlapped together form the exhaust hole 40. The hollow area may form a spiral exhaust hole 40 and may be disposed between the spiral air passages 30, so that the effective utilization area of the cavity 110 and the outer cover 120 is as large as possible.

Referring to fig. 2-5, in some embodiments, the cavity 110 and the housing 120 are attached and sealed.

In this way, by sealing the connection between the chamber 110 and the housing 120, a closed air passage 30 can be formed, thereby avoiding mixing of gas or combustion exhaust gases in the aerosol.

Specifically, as described above, the cavity 110 and the cover 120 on the outer periphery of the second accommodating chamber 20 are bonded together on the surface where the groove 130 is not formed, and may be sealed and connected by welding or sintering, etc. The cavity 110 is connected with the outer cover 120 in a sealing manner, so that heat loss caused by air leakage can be reduced, and meanwhile, the air passage 30 is isolated from the second accommodating cavity 20 and the external environment, so that gas in the air passage 30 is prevented from mixing into fuel gas or waste gas, and the safety of the gas entering the first accommodating cavity 10 is ensured.

Referring to fig. 3-5, in some embodiments, the air duct 30 includes an air inlet 31 and an air outlet 32, the air outlet 32 communicates with the first accommodating chamber 10, and the air inlet 31 is formed on the chamber 110.

In this way, the first receiving chamber 10 is communicated through the air outlet 32 such that the flow of hot air heated by the second receiving chamber 20 enters the first receiving chamber 10 from the air outlet 32, whereby the aerosol-generating substrate 200 can be heated by means of hot air.

Specifically, the air inlet 31 is disposed at an end of the cavity 110, and may be used as a starting point of the air passage 30, and the air passage 30 may be in communication with the atmosphere through the air inlet 31. The air outlet 32 is disposed opposite the first accommodation chamber 10 and the second accommodation chamber 20, and may be used as a termination point of the air passage 30. The air inlet 31 and the air outlet 32 may be integrally formed with the air duct 30 by the chamber 110 and the cover 120, or may be formed inside the chamber 110. For example, the air inlet 31 may be an annular protrusion on the cavity 110, and the inner wall and the outer wall of the cavity 110 may be spaced apart to form the air inlet 31. As another example, the air outlet 32 may be defined by a partition 112 and a cavity wall 111. In some embodiments, the air outlet 32 is curved to guide the air flow from the outside of the second accommodating chamber 20 to the inside of the first accommodating chamber 10, and in this embodiment, the partition 112 may adapt to the curvature and distance of the air inlet 31 bending to form a bending and step surface to ensure the sealing of the air inlet 31.

The air outlet 32 may be isolated from the air outlet 40 by a partition 112, and the air inlet 31 may be isolated from the air outlet 40 by a chamber wall 111, a housing 120, and/or other isolation structures (not shown) to prevent combustion exhaust from entering the first receiving chamber 10.

Referring to fig. 5, in some embodiments, the air inlet 31 is located at an end of the cavity 110 remote from the first accommodating cavity 10.

In this way, the air inlet 31 is disposed at the end of the cavity 110 away from the first accommodating cavity 10, so that the limited volume space of the cavity 110 can be effectively utilized, and the probability of aerosol entering the air passage 30 can be reduced.

Specifically, the gas inlet 31 is located at an end of the second accommodation chamber 20 facing the first accommodation chamber 10, and the gas outlet 32 is located at an end of the second accommodation chamber 20 remote from the first accommodation chamber 10, and the gas is heated during the flow from the gas inlet 31 to the gas outlet 32. Cool air enters the air duct 30 from the air inlet 31, and warm air flows out of the air duct 30 from the air outlet 32 and into the first accommodating chamber 10.

Referring to fig. 7-9, in some embodiments, the aerosol-heating component 100 includes an air inlet tube 60, a first end 61 of the air inlet tube 60 being in communication with the air inlet 31.

As such, the air inlet duct 60 may intensively introduce cool air to the air inlet 31 for absorbing heat of the second accommodating chamber 20 and transferring the heat to the aerosol-generating substrate 200.

Specifically, air inlet 31 includes a first end 61 and a second end 62. The air inlet pipe 60 is sealingly connected to the air inlet 31, and it may be that a first end 61 of the air inlet pipe 60 is embedded in the air inlet 31. The first end 61 may be fixedly connected to the cavity 110 or the housing 120 at the air inlet 31 by welding, sintering, gluing, or the like. The pipe diameters of the air inlet pipe 60 and the air passage 30 may be uniform or close.

With continued reference to fig. 7-9, in some embodiments, the air inlet tube 60 is curved, and at least a portion of the air inlet tube 60 is located on a lateral side of the cavity 110.

In this way, the combustion exhaust gas can be further prevented from being introduced into the air inlet pipe 60 and the air passage 30, and the safety of the gas entering the first accommodating chamber 10 can be ensured.

Specifically, the second end 62 of the air intake pipe 60 is the end remote from the air intake port 31. The air inlet duct 60 is bent between the first end 61 and the second end 62 such that a portion of the air inlet duct 60 adjacent to the second end 62 is located on one lateral side of the cavity 110. The second end 62 may be oriented at an angle to the second end 62 such that the first end 61 is oriented opposite the second end 62 when the inlet tube 60 is sufficiently curved.

Referring to fig. 10, an aerosol-generating device 1000 according to an embodiment of the application comprises an aerosol-heating component 100 according to any of the embodiments described above.

In particular, the aerosol-heating member 100 is used for heating an aerosol-generating substrate 200 in an aerosol-generating device 1000 to form an aerosol. The aerosol generated in the aerosol-generating device 1000 may be used for various purposes such as eating, pharmaceutical, health care, and the like.

The aerosol-generating substrate 200 is an article capable of generating an aerosol, and the aerosol-generating substrate 200 may be solid or liquid. The solid aerosol-generating substrate 200 may be in the form of a block, a fine rod, a powder, a chip, or the like, and the liquid aerosol-generating substrate 200 may be a liquid having high fluidity, a gel, or the like. The aerosol-generating substrate 200 may be in the form of a powder, chip, liquid, or the like, which may be centrally enclosed. The aerosol-generating substrate 200 may be generally cylindrical and at least partially inserted into the first receiving cavity 10 and heated for aerosolization by the aerosol-heating assembly to produce an aerosol.

In the aerosol-heating member 100 and the aerosol-generating device 1000 of the present application, the second accommodating chamber 20 provides a place for combustion of gas, and heats the gas in the gas passage 30 in the sidewall of the second accommodating chamber 20, and then the hot gas flows into the second accommodating chamber 20 isolated from the second accommodating chamber 20, so as to heat the aerosol-generating substrate 200 at a relatively low heating temperature, thereby being less prone to over-baking, resulting in a better taste and flavor of the generated aerosol, and optimizing the use feeling of the aerosol-generating device 1000.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," or "examples," etc., 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 application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The aerosol heating component is characterized in that the aerosol heating component is provided with a first accommodating cavity, a second accommodating cavity and an air passage, the first accommodating cavity is used for accommodating aerosol generating substrates and is communicated with one end of the air passage, the second accommodating cavity is used for accommodating a heat source and is adjacent to the air passage and isolated from the air passage, and the other end of the air passage is communicated with the atmosphere.

2. The aerosol-heating component of claim 1, wherein the heat source is a combustible heat source.

3. The aerosol-heating member of claim 2 wherein the aerosol-heating member forms a vent in communication with the second receiving cavity, the vent being isolated from the airway.

4. The aerosol-heating component of claim 2, wherein a porous structure is disposed within the second receiving cavity.

5. The aerosol-heating member of claim 1 wherein the air passage extends helically around the second receiving chamber in a direction toward the first receiving chamber.

6. The aerosol-heating member of claim 1, comprising a cavity forming the first and second receiving cavities and a housing covering the second receiving cavity, the cavity and housing being in engagement and sealed connection, an outer wall of the cavity being formed with a groove, the housing covering the groove such that the groove and housing define the air channel; or alternatively, the first and second heat exchangers may be,

The inner wall of the housing is formed with a recess facing the housing such that the recess and the outer wall of the cavity define the air passage.

7. The aerosol-heating component of claim 6, wherein the cavity comprises a cavity wall and a baffle within the cavity wall, the baffle spacing a space within the cavity wall to form the second receiving cavity and the first receiving cavity.

8. The aerosol-heating component of claim 6, wherein the air passageway comprises an air inlet and an air outlet, the air outlet communicating with the first receiving cavity, the air inlet being formed in the cavity, the air inlet being located at an end of the cavity remote from the first receiving cavity.

9. The aerosol-heating component of claim 8, comprising an air inlet tube, a first end of the air inlet tube in communication with the air inlet port, the air inlet tube being curved such that at least a portion of the air inlet tube is located on a lateral side of the cavity.

10. An aerosol-generating device comprising an aerosol-heating member according to any of claims 1 to 9.