Aerosol generating device
By setting up a heat-insulating structure in the aerosol generation device and designing a heating element surrounding the heat exchange core, the problem of heating matrix easily burning and burning the mouth in the prior art is solved, uniform heating and efficient heat insulation are achieved, and air The quality of the sol and the safety of the device.
Patent Information
- Application Number
- CN202420650939.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The existing aerosol generation device generates a matrix by heating the aerosol in the circumferential direction, which can easily cause problems such as burning, baking paper smell and hot mouth.
An aerosol generator is designed, including a housing assembly, a heating substrate and a heat exchange core. By setting an insulating structure on the heating substrate, the insulating structure surrounds the heating region and the supporting region, blocking heat transfer, and heating element surrounds the The heat exchange core heats the airflow, and the airflow heats the aerosol to produce a matrix evenly to avoid direct heating of the matrix.
It effectively avoids the problems of burning and baking paper smell, ensures the pure taste of the aerosol, and improves the heating efficiency through the thermal insulation structure, reducing the transfer of heat to the support area.
Smart Images
Figure CN222129401U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of electronic atomization, and specifically to an aerosol generating device. Background Art
[0002] An aerosol generating device is a device that can heat and atomize an aerosol generating substrate into an aerosol. The aerosol generating device includes a heating element, and a mounting position is provided inside the aerosol generating device. By inserting the aerosol generating substrate into the mounting position and turning on the heating element, the heating element will heat the aerosol generating substrate from the circumference. However, the heating element directly heats and bakes the aerosol generating substrate from the circumference, which is easy to cause problems such as burning, producing a baking paper smell, and burning the mouth. Utility Model Content
[0003] The present application provides an aerosol generating device, which can solve the problems of scorching, producing a baking paper smell and burning the mouth caused by circumferential heating of an aerosol generating matrix.
[0004] In order to solve the above technical problems, the present application provides an aerosol generating device, including a shell assembly, a heating substrate and a heat exchange core. The shell assembly is provided with an air inlet channel connected to the atmosphere; the heating substrate is arranged in the shell assembly, and a receiving cavity connected to the air inlet channel is formed in the heating substrate, and a mounting position is arranged on the side of the receiving cavity away from the air inlet channel, and the mounting position is used to accommodate the aerosol generating matrix; at least part of the heat exchange core is arranged in the receiving cavity, and a plurality of heat exchange channels are arranged in the heat exchange core, one end of the heat exchange channel is connected to the air inlet channel, and the other end of the heat exchange channel is used to communicate with the mounting position; the heating substrate includes a heating area, a blocking area and a supporting area, the heating area is arranged around the heat exchange core, and a heating element is arranged on the heating area, the supporting area is arranged around the mounting position, the blocking area is arranged between the heating area and the supporting area, and a heat insulation structure is arranged, and the heat insulation structure is used to reduce the heat transfer from the heating area to the supporting area.
[0005] In one embodiment, the heat insulation structure is at least one of a hollow structure, a groove structure, and a protruding structure.
[0006] In one embodiment, the hollow structure is a strip-shaped structure extending along the circumference of the heating substrate.
[0007] In one embodiment, there are plural heat insulation structures, which are arranged at intervals along the circumference of the heating substrate.
[0008] In one embodiment, the aerosol generating device further comprises a thermal insulator which is embedded in the thermal insulation structure.
[0009] In one embodiment, the shell assembly includes a bracket and a heat insulation member, the interior of the bracket is provided with an air guide channel, one end of the air guide channel is connected to the air intake channel, and the other end of the air guide channel is connected to the heat exchange channel, the air guide channel is used to guide the airflow of the air intake channel to the interior of the heat exchange channel, the heat insulation member is arranged at one end of the bracket close to the heat exchange core, the heating base and the heat exchange core are arranged on the heat insulation member, and the heat insulation member is used to block heat conduction between the heat exchange core and the bracket.
[0010] In one embodiment, a boss is provided at one end of the heat exchange core close to the air inlet channel, an end of the heating substrate close to the air inlet channel abuts against a side of the boss facing the heating substrate, and an end face of the heat exchange core close to the air inlet channel abuts against the thermal insulation component.
[0011] In one embodiment, the thermal insulation element is configured as a thermal insulation element having a temperature resistance greater than 350° C. and a thermal conductivity less than 10 W / (K*m).
[0012] In one embodiment, the thermal insulation member is configured as a polyimide thermal insulation member or a ceramic thermal insulation member or a glass thermal insulation member, and the bracket is configured as a polyetheretherketone material.
[0013] In one embodiment, the heat exchange channel includes a heat exchange groove and a heat exchange hole. The heat exchange groove is arranged on the end surface of the heat exchange core facing the air intake channel. The heat exchange hole is opened on the surface of the heat exchange groove away from the air intake channel and passes through the heat exchange core. There are multiple heat exchange holes.
[0014] In one embodiment, the heating element further includes an electrode portion, a portion of which is disposed in the supporting area, and another portion of the electrode portion passes through the barrier area and is connected to the heating portion, and the electrode portion is used to be electrically connected to an external wire.
[0015] The present application provides an aerosol generating device, including a shell component, a heating substrate and a heat exchange core. The shell component is provided with an air inlet channel connected to the atmosphere; the heating substrate is arranged in the shell component, and a communicating accommodation cavity and a mounting position are formed in the interior of the shell component, and a mounting position is arranged on the side of the accommodation cavity away from the air inlet channel, and the mounting position is used to accommodate the aerosol generating substrate; at least part of the heat exchange core is arranged in the accommodation cavity, and a plurality of heat exchange channels are arranged in the heat exchange core, one end of the heat exchange channel is connected to the air inlet channel, and the other end of the heat exchange channel is used to communicate with the mounting position; the heating substrate includes a heating area, a blocking area and a supporting area, the heating area is arranged around the heat exchange core, and a heating element is arranged on the heating area, the supporting area is arranged around the mounting position, the blocking area is arranged between the heating area and the supporting area, and a heat insulation structure is arranged, and the heat insulation structure is used to reduce the heat transfer from the heating area to the supporting area. The heating element of the aerosol generating device of the present application is arranged around the heat exchange core. The heating element will heat the airflow inside the heat exchange core. The heated airflow will flow to the aerosol generating substrate, so that the aerosol generating substrate generates aerosol. The heating element is not directly arranged around the aerosol generating substrate, and the aerosol generating substrate can be baked at a uniform temperature in the radial direction, so it is not easy to cause the problem of burning or producing the smell of baking paper. The baking temperature of the aerosol generating substrate when the hot air flow bakes is not too high, and it is not easy to cause the problem of burning the mouth. And by reducing the heat transfer from the heating area to the supporting area through the heat insulation structure of the blocking area, the heat transfer from the heating element to the heat exchange core can be increased, and the heat transfer from the heating element upward can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of the structure of an aerosol generating device provided in one embodiment of the present application;
[0017] Figure 2 for Figure 1 A cross-sectional view of
[0018] Figure 3 A schematic structural diagram of an aerosol generating device provided in another embodiment of the present application;
[0019] Figure 4 for Figure 3 A cross-sectional view of
[0020] Figure 5 for Figure 3 Schematic diagram of the explosion structure;
[0021] Figure 6 A cross-sectional view of a heating substrate, a heat exchange core, a heating element, and a heat insulating element provided in one embodiment of the present application;
[0022] Figure 7 A schematic diagram of the structure of a heating substrate, a heat exchange core, a heating element, a heat insulating element and an aerosol generating substrate provided in one embodiment of the present application;
[0023] Figure 8 A schematic diagram of the structure of a heating substrate, a heat exchange core, a heating element, a heat insulating element and an external wire provided in an embodiment of the present application;
[0024] Fig. 9 for Figure 8 Schematic diagram of the expansion of the heating substrate and the heating element. DETAILED DESCRIPTION
[0025] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.
[0026] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.
[0027] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).
[0028] The terms "parallel", "vertical", etc. are defined for the current state of the art, rather than being absolutely strict definitions in a mathematical sense. A small amount of deviation is allowed, and approximately parallel, approximately vertical, etc. are all acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0° and 10°. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80° and 100°. The directional terms mentioned in the embodiments of the present application, such as "upper", "inner", "outer", "side", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0029] Please refer to Figure 1-5 The present application provides an aerosol generating device, which includes a housing assembly 10, a heat exchange core 20 and a heating substrate 30. The housing assembly 10 is provided with an air inlet passage 11 communicating with the atmosphere.
[0030] Please refer to Figure 2 , Figure 6 and Figure 7 The heating substrate 30 is disposed in the housing assembly 10, and a receiving cavity 31 is formed inside the heating substrate 30. A mounting position 32 is disposed on one side of the receiving cavity 31 away from the air inlet passage 11. The mounting position 32 is used to accommodate the aerosol generating substrate 50. Figure 3 and Figure 4 The aerosol generating substrate 50 can be inserted into the installation position 32. Specifically, in one embodiment, the heating substrate 30 can be a cylindrical structure, that is, both ends of the heating substrate 30 along the axial direction are open ends. The aerosol generating substrate 50 can be inserted into or removed from the installation position 32 from the open end. The heating substrate 30 can support the aerosol generating substrate 50 accommodated therein.
[0031] The aerosol generating substrate 50 may specifically include a plant grass leaf substrate, such as a tobacco substrate. The aerosol generating substrate 50 may also include a protective cover, which may wrap the plant grass leaf substrate. For example, the plant grass leaf substrate may be wrapped inside an aluminum foil or paper for use. It should be noted that the aerosol generating device may not include the aerosol generating substrate 50, and the aerosol generating substrate 50 is only used as a consumable. The aerosol generating device may also include the aerosol generating substrate 50, depending on the situation.
[0032] Please refer to Figure 2 , Figure 6 and Figure 7At least part of the heat exchange core 20 is disposed in the accommodating cavity 31. A plurality of heat exchange channels 21 are disposed inside the heat exchange core 20, one end of the heat exchange channel 21 is connected to the air inlet channel 11, and the other end of the heat exchange channel 21 is connected to the mounting position 32, so that the heat exchange channel 21 can be connected to the aerosol generating matrix 50.
[0033] Please refer to Figure 6-9 , the heating substrate 30 includes a heating area 33, a supporting area 34 and a blocking area 35. Among them, the heating area 33, the supporting area 34 and the blocking area 35 are areas divided according to their respective functions. The heating area 33 is arranged around the heat exchange core 20, and a heating element 40 is arranged on the heating area 33. The heating element 40 includes a heating portion 41, and the heating portion 41 is arranged in the heating area 33 to heat the gas inside the heat exchange core 20. Therefore, when the user inhales the aerosol generating matrix 50, the airflow can enter the interior of the aerosol generating device from the air inlet channel 11 and flow to the heat exchange channel 21. At the heat exchange channel 21, the cold airflow is heated by the heating element 40 into a hot airflow, and the hot airflow flows into the aerosol generating matrix 50 to atomize the aerosol generating matrix 50 into an aerosol.
[0034] The support area 34 is arranged around the mounting position 32, and the support area 34 is mainly used to support the end of the aerosol generating substrate 50 close to the air inlet channel 11. Thus, the heating area 33 is located on the side of the heating substrate 30 close to the air inlet channel 11, and the support area 34 is located on the side of the heating substrate 30 away from the air inlet channel 11. The barrier area 35 is arranged between the heating area 33 and the support area 34. The barrier area 35 is provided with a heat insulation structure 36 to reduce the heat transfer from the heating area 33 to the support area 34.
[0035] In one embodiment, the material of the heating substrate 30 is an insulating material, for example, it can be a high temperature resistant insulating material such as quartz glass, ceramics or mica. The heating area 33, the supporting area 34 and the barrier area 35 can be located on the external side surface of the heating substrate 30. Of course, the heating area 33, the supporting area 34 and the barrier area 35 can also be located on the internal side surface of the heating substrate 30. The heating element 40 can be a heating film arranged on the heating substrate 30 by printing, deposition and other processes, or it can be a heating sheet. The material of the heating part 41 can be metal, conductive ceramic, conductive carbon, etc., and the shape of the heating part 41 can be a continuous film structure, a porous mesh structure or a strip structure.
[0036] The heating element 40 of the aerosol generating device of the present application is arranged around the heat exchange core 20. The heating element 40 will heat the airflow inside the heat exchange core 20, and the heated airflow will flow to the aerosol generating substrate 50, so that the aerosol generating substrate 50 generates aerosol. Compared with the solution of the prior art that the heating element directly surrounds the aerosol generating substrate 50, the heating element is not directly arranged around the aerosol generating substrate 50, and the aerosol generating substrate 50 can be baked at a uniform temperature in the radial direction. Therefore, it is not easy to cause the problem of burning or producing the smell of baking paper, and the taste of the aerosol generated by heating will also be purer. Compared with the heating element directly baking the aerosol generating substrate 50 circumferentially, the baking temperature of the hot air flow baking the aerosol generating substrate 50 will not be too high, and it is not easy to cause the problem of burning the mouth. The heat transfer from the heating area 33 to the supporting area 34 is reduced by the heat insulation structure 36 of the blocking area 35. When the heating element 40 is powered on and heated up, the heat insulation structure 36 can lock the temperature in the heating area as much as possible, so that the heating element 40 can transfer more than 50% of the heat to the heat exchange core 20, reducing the amount of heat transferred upward by the heating element 40.
[0037] like Figure 8 and Fig. 9 As shown, in one embodiment, the heat insulation structure 36 can be one or more of a hollow structure, a groove structure, and a protruding structure. Figure 8 and Fig. 9 In the embodiment of the present invention, the heat insulating structure 36 is a hollow structure in the shape of a strip extending along the axial direction of the heating substrate 30. Of course, in other embodiments, the hollow structure can also be a bent structure, a zigzag structure, or can be other regular or irregular shapes. The hollow structure, the groove structure, and the protruding structure can increase the path of heat transfer, so it is helpful to block the heat transfer from the heating area 33 to the supporting area 34.
[0038] In one embodiment, the number of the heat insulation structure 36 can be multiple, and the multiple heat insulation structures 36 are arranged at intervals along the circumference of the heating substrate 30. Figure 8 and Fig. 9 In the embodiment, a plurality of strip-shaped heat insulation holes are arranged at intervals along the circumference of the heating substrate 30.
[0039] In one embodiment, the aerosol generating device further includes an insulator (not shown), which is embedded in the insulation structure 36. The insulator can be filled in the insulation structure 36 by processes such as painting, spraying, and glue dripping. The material of the insulator needs to meet the conditions of high temperature resistance and low thermal conductivity at the same time. For example, in one embodiment, the thermal conductivity of the insulator is less than 8W / (m·K), and / or the material of the insulator includes at least one of microcrystalline glass, zirconia ceramics, polyetheretherketone, and polyimide. This embodiment embeds the insulator into the insulation structure 36, and prevents the transfer of heat from the heating area 33 to the support area 34 by physical blocking.
[0040] In one embodiment, if Figure 2 , Figure 4-6 The housing assembly 10 includes a shell 12, a bracket 13, and a heat insulating member 14. The shell 12 is provided with an insertion port 121 communicating with the outside of the shell 12 and an air inlet channel 11. The insertion port 121 is arranged opposite to the mounting position 32 so that the aerosol can be arranged at the mounting position 32 through the insertion port 121. The bracket 13 has an air guide channel 131 inside, one end of the air guide channel 131 is communicated with the air inlet channel 11, and the other end of the air guide channel 131 is communicated with the heat exchange channel 21, and the air guide channel 131 is used to guide the airflow of the air inlet channel 11 to the inside of the heat exchange channel 21.
[0041] The heat insulating member 14 is arranged at one end of the bracket 13 close to the heat exchange core 20, the heating base 30 and the heat exchange core 20 are arranged on the heat insulating member 14, and the heat insulating member 14 is used to block the heat conduction between the heat exchange core 20 and the bracket 13. Specifically, a first slot 132 is arranged at one end of the bracket 13 away from the air inlet channel 11, the heat insulating member 14 abuts against the first slot 132, a second slot 141 is arranged at one end of the heat insulating member 14 away from the air inlet channel 11, and the heating base 30 and the heat exchange core 20 are arranged in the second slot 141. Due to the high temperature at the heat exchange core 20, the traditional bracket 13 material may be decomposed by high temperature, which may lead to risks such as machine combustion and battery explosion in severe cases. Therefore, this embodiment prevents damage to the components inside the aerosol generating device by setting a heat insulating member 14 to block the heat transfer from the heat exchange core 20 to the bracket 13.
[0042] Further, the heat insulating member 14 can be configured as a heat insulating member 14 with a temperature resistance greater than 350°C and a thermal conductivity less than 10W / (K*m). For example, in one embodiment, the heat insulating member 14 is configured as a polyimide heat insulating member 14 or a ceramic heat insulating member 14 or a glass heat insulating member 14. The bracket 13 can be configured as a polyetheretherketone material. The polyetheretherketone material can withstand a temperature of more than 300 degrees Celsius in a short time and a temperature of more than 240 degrees Celsius in a long time, and has good temperature resistance.
[0043] In one embodiment, if Figure 6 As shown, a boss 22 is provided at one end of the heat exchange core 20 close to the air inlet passage 11, and an end of the heating base 30 close to the air inlet passage 11 abuts against a side of the boss 22 facing the heating base 30, and an end surface of the heat exchange core 20 close to the air inlet passage 11 abuts against the heat insulation member 14. Thus, a boss 22 is further provided between the heat exchange core 20 and the heat insulation member 14, which can further increase the heat transfer path from the heat exchange core 20 to the bracket 13, and is conducive to blocking the heat transfer from the heat exchange core 20 to the bracket 13.
[0044] In one embodiment, if Figure 2 and Figure 6 As shown, the heat exchange channel 21 includes a heat exchange groove 211 and a heat exchange hole 212. The heat exchange groove 211 is arranged on the end surface of the heat exchange core 20 facing the air inlet channel 11. The heat exchange hole 212 is opened on the surface of the heat exchange groove 211 away from the air inlet channel 11 and penetrates the heat exchange core 20. There are multiple heat exchange holes 212. The heat exchange holes 212 can be evenly distributed in the radial direction so that the hot air flow can evenly heat the aerosol generating matrix 50 in the radial direction.
[0045] In one embodiment, if Figure 8 and Fig. 9 As shown, the heating element 40 further includes an electrode portion 42, a portion of which is disposed in the support area 34, and another portion of the electrode portion 42 passes through the barrier area 35 to connect with the heating portion 41. The electrode portion 42 can be used to be electrically connected to an external wire 60, and the external wire 60 is electrically connected to a power source, so that the power source can supply power to the heating portion 41. Of course, the electrode portion 42 can also be disposed only in the heating area 33, or the electrode portion 42 can be disposed only in the heating area 33 and the barrier area 35. When a portion of the electrode portion 42 is disposed in the support area 34, and another portion of the electrode portion 42 passes through the barrier area 35 to connect with the heating portion 41, the electrode portion 42 can be prevented from occupying the space of the heating area 33, and the area of the support area 34 can be utilized.
[0046] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of the present invention.
Claims
1. An aerosol generating device, characterized in that: include: A housing assembly, wherein an air inlet passage communicating with the atmosphere is provided inside the housing assembly; A heating substrate is disposed in the housing assembly, wherein a receiving cavity connected to the air inlet passage is formed inside the heating substrate, and a mounting position is disposed on a side of the receiving cavity away from the air inlet passage, and the mounting position is used to accommodate an aerosol generating substrate; a heat exchange core, at least part of which is disposed in the accommodating cavity, a plurality of heat exchange channels being disposed inside the heat exchange core, one end of the heat exchange channel being communicated with the air inlet channel, and the other end of the heat exchange channel being used to communicate with the mounting position; The heating substrate includes a heating area, a blocking area and a supporting area. The heating area is arranged around the heat exchange core and a heating element is arranged on the heating area. The supporting area is arranged around the mounting position. The blocking area is arranged between the heating area and the supporting area and is provided with a heat insulation structure. The heat insulation structure is used to reduce the heat transfer from the heating area to the supporting area.
2. The aerosol generating device according to claim 1, characterized in that: The heat insulation structure is at least one of a hollow structure, a groove structure, and a protruding structure.
3. The aerosol generating device according to claim 2, characterized in that: The hollow structure is a strip-shaped structure extending along the circumference of the heating substrate.
4. The aerosol generating device according to claim 2, characterized in that: The heat insulation structures are multiple in number and are arranged at intervals along the circumference of the heating substrate.
5. The aerosol generating device according to claim 1, characterized in that: The aerosol generating device further comprises a thermal insulator, which is embedded in the thermal insulation structure.
6. The aerosol generating device according to claim 1, characterized in that: The shell assembly includes a bracket and a heat insulating member, the interior of the bracket is provided with an air guide channel, one end of the air guide channel is connected to the air intake channel, and the other end of the air guide channel is connected to the heat exchange channel, the air guide channel is used to guide the airflow of the air intake channel to the interior of the heat exchange channel, the heat insulating member is arranged at one end of the bracket close to the heat exchange core, the heating base and the heat exchange core are arranged on the heat insulating member, and the heat insulating member is used to block heat conduction between the heat exchange core and the bracket.
7. The aerosol generating device according to claim 6, characterized in that: A boss is provided at one end of the heat exchange core close to the air inlet passage, an end of the heating substrate close to the air inlet passage abuts against a surface of the boss facing the heating substrate, and an end surface of the heat exchange core close to the air inlet passage abuts against the thermal insulation component.
8. The aerosol generating device according to claim 6, characterized in that: The thermal insulation component is configured as a thermal insulation component with a temperature resistance greater than 350° C. and a thermal conductivity less than 10 W / (K*m).
9. The aerosol generating device according to claim 8, characterized in that: The thermal insulation member is configured as a polyimide thermal insulation member or a ceramic thermal insulation member or a glass thermal insulation member, and the bracket is configured as a polyetheretherketone material.
10. The aerosol generating device according to claim 1, characterized in that: The heat exchange channel includes a heat exchange groove and a heat exchange hole. The heat exchange groove is arranged on the end surface of the heat exchange core facing the air intake channel. The heat exchange hole is opened on the surface of the heat exchange groove away from the air intake channel and passes through the heat exchange core. The number of the heat exchange holes is multiple.