Aerosol-generating device

Abstract

The embodiment of the utility model provides an aerosol generating device. The aerosol generating device comprises a shell; the heating assembly is arranged in the shell and used for heating the aerosol generating product; the power supply and the circuit board are arranged in the shell, and the circuit board is electrically connected with the heating assembly and the power supply to control the power supply to provide power for the heating assembly; the circuit board or the heating assembly or the power supply is fixed on the surface of the bracket, and the circuit board or the heating assembly or the power supply and the shell are arranged at an interval; the support comprises a plurality of separation structures, and the separation structures abut against the shell and form a plurality of independent heat insulation cavities.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of heat-not-burn aerosol generation, and in particular to an aerosol generating device. Background Art

[0002] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. People have attempted to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0003] An example of such a product is a heating device, which releases a compound by heating rather than burning a material. For example, the material may be an aerosol-generating article containing tobacco or other non-tobacco products, which may or may not contain nicotine.

[0004] The known heating device includes a shell and a heating component disposed inside the shell for heating the tobacco product. When in use, the user grasps the shell. However, in order to facilitate the user to grasp and carry, the size of the heating device needs to be reduced to make it miniaturized. However, the temperature of the tobacco product heated by the heating component is usually higher than 200°C. Miniaturization makes the heat insulation effect between the shell and the heating component poor, which not only leads to high power consumption of the heating device, but also likely causes the shell to be hot. Utility Model Content

[0005] The present application provides an aerosol generating device, which can effectively reduce power consumption and prevent the casing from being scalded.

[0006] One embodiment of the present application provides an aerosol generating device, comprising:

[0007] shell;

[0008] a heating assembly disposed within the housing for heating the aerosol generating article;

[0009] A power supply and a circuit board are both disposed in the housing, the circuit board electrically connecting the heating component and the power supply to control the power supply to provide power to the heating component; and

[0010] A bracket, the circuit board or the heating component or the power supply is fixed on the surface of the bracket, and the circuit board or the heating component or the power supply is spaced apart from the housing;

[0011] Wherein, the bracket includes a plurality of partition structures, and the plurality of partition structures abut against the shell to form a plurality of independent heat-insulating cavities.

[0012] In the above-mentioned aerosol generating device, the bracket includes multiple partition structures, the multiple partition structures abut the outer shell and form multiple independent insulation chambers, the circuit board or heating component or power supply is fixed on the surface of the bracket, and the circuit board or heating component or power supply is spaced apart from the outer shell, so that part of the surface of the bracket can be installed with the circuit board or heating component or power supply, and part of the surface has the insulation chamber, so that the internal space of the outer shell can be fully utilized, making the aerosol generating device miniaturized, and the circuit board or heating component or power supply is spaced apart from the outer shell to hinder heat transfer to the outer shell, and the multiple independent insulation chambers can reduce the convection of cold and hot gases, thereby increasing the insulation effect, reducing the power consumption of the heating component and ensuring that the user does not get hot when grasping the outer shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0014] Figure 1 is a schematic diagram of an aerosol generating device provided by an embodiment;

[0015] Figure 2 is an exploded schematic diagram of an aerosol generating device provided by an embodiment;

[0016] Figure 3 is a schematic diagram of the interior of an aerosol generating device provided by an embodiment;

[0017] Figure 4 is a schematic diagram of a bracket provided in an embodiment;

[0018] Figure 5 is a schematic diagram of a bracket provided in another embodiment;

[0019] Figure 6 is a schematic diagram of a bracket provided in another embodiment;

[0020] In the figure:

[0021] 1. Shell;

[0022] 2. Bracket; 21. First side plate; 22. Second side plate; 221. Main body; 222. Partition structure; 223. First part; 224. Second part; 23. Third side plate; 24. Fourth side plate; 25. Support part; 26. Top plate;

[0023] 31. Power supply; 32. Circuit board;

[0024] 4. Heating assembly; 41. Heating chamber; 42. Thermal insulation element;

[0025] 51. First holding space; 52. Second holding space;

[0026] 6. Upper cover; 61. Insertion port;

[0027] 7. Insulation chamber. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] The terms "first", "second", "third" in the present application are only used for descriptive purposes, and cannot be interpreted as indicating or suggesting relative importance or implicitly indicating the quantity or order of the indicated technical features. In the present application embodiment, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement conditions between the components under a certain posture (as shown in the accompanying drawings), and if the posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, the process, method, system, product or equipment comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0030] Reference to "embodiments" herein means that the features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be one or more central elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0032] You can refer to Figure 1One embodiment of the present application provides an aerosol generating device, which can interact with an aerosol generating article, so that the aerosol generating article generates aerosol.

[0033] As used herein, the term "aerosol-generating article" refers to an article comprising an aerosol-forming substrate that, when heated, releases volatile compounds that can form an aerosol. In an embodiment, the aerosol-generating article is removably coupled to an aerosol-generating device. The article may be disposable or reusable.

[0034] Aerosol-forming substrates may include solid aerosol-forming substrates.Solid aerosol-forming substrates may include tobacco-containing materials, and the tobacco-containing materials contain volatile tobacco flavor compounds released from the aerosol-forming substrate when heated.Solid aerosol-forming substrates may include non-tobacco materials.Solid aerosol-forming substrates may include tobacco-containing materials and do not contain tobacco materials.

[0035] Aerosol formation matrix can comprise liquid aerosol formation matrix.Liquid aerosol formation matrix can comprise the liquid of tobacco-containing material that contains volatile tobacco flavor component, can also be the liquid that comprises non-tobacco material.Liquid aerosol formation matrix can comprise water, solvent, ethanol, plant extract, spices, flavoring agent or vitamin mixture etc., and spices can comprise betel nut extract, menthol, European mint, green mint oil, various fruity fragrance components etc., but is not limited to this.Flavoring agent can comprise the composition that can provide various fragrance or local flavor to the user.Vitamin mixture can be the mixture that is mixed with at least one in vitamin A, vitamin B, vitamin C and vitamin E, but is not limited to this.

[0036] You can refer to Figure 1-Figure 4 The aerosol generating device comprises a housing 1, a power supply assembly and a heating assembly 4. The housing 1 has a first holding space 51 and a second holding space 52. The heating assembly 4 is arranged in the first holding space 51, and the power supply 31 in the power supply assembly is arranged in the second holding space 52. The heating assembly 4 is used to heat the aerosol generating product so that the aerosol-forming substrate generates an aerosol. The power supply assembly is electrically connected to the heating assembly 4 to provide power to the heating assembly 4.

[0037] The power supply assembly may include a power supply 31, which may be any suitable battery. In one embodiment, the battery is a lithium-ion battery. Alternatively, the battery may be a nickel metal hydride battery, a nickel cadmium battery, or a lithium-based battery, such as a lithium cobalt, lithium iron phosphate, lithium titanate, or a lithium polymer battery. The power supply assembly may include a circuit board 32 and one or more control circuits disposed on the circuit board 32, and the control circuit may control the output of the battery, such as causing the battery to output an alternating current or a direct current, or, for example, causing the power supply 31 to output a current or voltage in the form of pulses.

[0038] The control circuit may have one or more controllers. The controller may control the overall operation of the aerosol generating device. In detail, the controller not only controls the operation of the power supply 31 and the heating element 21, but also controls the operation of other elements in the aerosol generating device. In addition, the controller can determine whether the aerosol generating device can be operated by checking the state of the elements of the aerosol generating device. The controller includes at least one processor. The processor may include a logic gate array, or may include a combination of a general-purpose microprocessor and a memory storing executable programs in the microprocessor. In addition, it should be understood by those skilled in the art that the controller may include another type of hardware.

[0039] In one embodiment, reference may be made to Figure 2 and Figure 3 A heating chamber 41 extending in the longitudinal direction is formed in the heating assembly 4, and at least a part of the aerosol-generating article, such as an aerosol-forming substrate, can be received in the heating chamber 41. The heating assembly 4 includes a heating element, and at least part of the heat released by the heating element can cause the aerosol-forming substrate to generate an aerosol, and the heating element can include at least one of a resistive material, an infrared material, and an electromagnetic material.

[0040] Among them, the resistive material refers to a material that can generate Joule heat when conducting electricity. Suitable resistive materials include, but are not limited to, semiconductors, such as doped ceramics, conductive ceramics (e.g., molybdenum disilicide), carbon, graphite, metals, metal alloys, and composite materials made of ceramic materials and metal materials. Such composite materials may include doped or undoped ceramics. Examples of suitable doped ceramics include doped silicon carbide. Examples of suitable metals include titanium, zirconium, tantalum, and platinum group metals. Examples of suitable metal alloys include stainless steel, Constantan, nickel-containing alloys, cobalt-containing alloys, chromium-containing alloys, aluminum-containing alloys, titanium-containing alloys, zirconium-containing alloys, hafnium-containing alloys, niobium-containing alloys, molybdenum-containing alloys, tantalum-containing alloys, tungsten-containing alloys, tin-containing alloys, gallium-containing alloys, manganese-containing alloys, and iron-containing alloys, as well as superalloys based on nickel, iron, and cobalt, stainless steel, iron-aluminum-based alloys, and iron-manganese-aluminum-based alloys.

[0041] Infrared material refers to a material that can radiate infrared rays when excited or conducting. Suitable infrared materials can generate infrared rays of 0.75μm to 1000μm, optionally 1.5μm to 400μm, and optionally far infrared rays of 8μm to 15μm.

[0042] Electromagnetic material refers to a material that can generate eddy currents and / or hysteresis in a changing magnetic field, thereby generating heat in a changing magnetic field. The electromagnetic material may include metal or carbon. In one embodiment, the electromagnetic material may include ferromagnetic material, such as ferrite, ferromagnetic steel or stainless steel. In one embodiment, the electromagnetic material includes a nickel-iron alloy. In one embodiment, the susceptor includes 400 series stainless steel, and the 400 series stainless steel includes 410 grade, 420 grade or 430 grade stainless steel.

[0043] When the heating element comprises an electromagnetic material, the aerosol generating device may further comprise a magnetic field generator, the magnetic field generator being electrically connected to a power supply assembly, the power supply assembly providing the magnetic field generator with a current for generating a changing magnetic field. The magnetic field generator may comprise one or more induction coils for generating a changing magnetic field, and the one or more induction coils may surround the sensing material.

[0044] It should be noted that, in some embodiments, the heating element is a component of the aerosol generating article. In some embodiments provided in the present application, the heating element is a component of the heating assembly in the aerosol generating device.

[0045] Please refer to Figure 2 and Figure 3 The heating assembly 4 may further include a heat insulating element 42, which is disposed on the periphery of the heating element and surrounds the heating cavity 41. The heat insulating element 42 can prevent the heat generated by the heating element from being transferred to the housing 1, which helps to reduce the power consumption of the heating element and increase the heating speed of the heating element, and can also prevent the surface temperature of the housing 1 from being too high, thereby preventing the user from being scalded.

[0046] The thermal insulation element 42 may be made of a thermal insulation material. A thermal insulation material refers to a material having a thermal conductivity of less than 100 W / (m·K) at 23°C and a relative humidity of 50%, preferably less than 40 W / (m·K) or less than 10 W / (m·K). For example, the thermal insulation material may be made of at least one of a PAEK material, a PI material, or a PBI material, wherein the PAEK material includes PEEK, PEKK, PEKEKK, or PEK material. For example, the thermal insulation material may include aerogel or felt.

[0047] The heat insulating element 42 may include a vacuum tube having an inner layer in the wall, the inner layer may be filled with air or heat insulating material, and the inner layer may be a negative pressure layer.

[0048] Please refer to Figure 1 and Figure 2 The aerosol generating device further comprises an upper cover 6 , on which an insertion port 61 is provided for inserting the aerosol generating product into the heating chamber, and the upper cover 6 is joined to the housing 1 .

[0049] Please refer to Figure 2The aerosol generating device further comprises a bracket 2, which can abut against the upper cover 6 upwards. The bracket 2 is arranged in the housing 1. The bracket 2 is used to hold the heating component 4 and the power supply component. At least a part of the bracket 2 can be made of a heat-insulating material.

[0050] More specifically, the circuit board 32 or the heating element 4 or the power supply 31 is fixed on the surface of the bracket 2, and the bracket 2 abuts against the housing 1. In one embodiment, please refer to Figure 4 and Figure 5 The local boundary of the first holding space 51 is defined by the bracket 2, and the local boundary is defined by the shell 1. The local boundary of the second holding space 52 is defined by the bracket 2, and the local boundary is defined by the shell 1, so that the internal structure of the aerosol generating device is compactly arranged and the space between the bracket 2 and the shell 1 can be fully utilized.

[0051] The circuit board 32 or the heating component 4 or the power supply 31 is independent of the housing 1 , so that the aerosol generating device meets the requirements of miniaturization design while preventing the housing 1 from overheating.

[0052] For more details, please refer to Figure 4 and Figure 5 The bracket 2 includes a partition structure 222, which abuts against the housing 1. The partition structure 222 forms a plurality of independent heat-insulating cavities 7 between the bracket 2 and the housing 1. The heat-insulating cavities 7 can be filled with air, thereby having a heat-insulating effect and preventing heat from being transferred to the housing 1. Based on this, please refer to Figure 4 and Figure 5 The support 2 has a heat insulation cavity 7 on part of its surface, and a circuit board 32 or a heating component 4 or a power source 31 is fixed on part of its surface. The partition structure 222 can prevent the gas from freely flowing between two adjacent heat insulation cavities 7, so that these heat insulation cavities 7 are independent of each other, which helps to reduce the convection of cold and hot gases between these heat insulation cavities 7, helps to increase the heat insulation effect and reduce the energy consumption of the heating component 4.

[0053] In one embodiment, please refer to Figure 4 and Figure 5 The bracket 2 includes a first side plate 21 and a second side plate 22. The first side plate 21 is arranged between the first holding space 51 and the second holding space 52, so that the first holding space 51 and the second holding space 52 are independent of each other, which can prevent the heat on the heating component 4 from being transferred to the second holding space 52 to a certain extent. The second side plate 22 defines a partial boundary of the second holding space 52.

[0054] In order to meet the design requirements of miniaturization of the aerosol generating device, the second side plate 22 can directly abut the inner wall of the housing 1. However, under normal circumstances, the second side plate 22 directly abuts the housing 1, which is conducive to the heat on the heating component 4 being transferred to the housing 1, thereby causing the surface of the housing 1 corresponding to the power supply component to have a higher temperature and causing the heating component 4 to consume more energy.

[0055] When using the aerosol generating device, the user usually grasps the housing 1 corresponding to the power supply assembly. In order to reduce the user's grasping temperature and improve safety and user experience, the user can refer to Figure 5 The second side plate 22 has a partition structure 222, so that the second side plate 22 directly abuts the shell 1 and a plurality of independent insulation cavities 7 are provided between the second side plate 22 and the shell 1. A plurality of independent insulation cavities 7 are formed between the second side plate 22 and the shell 1, and these multiple independent insulation cavities 7 have an insulation effect, which can prevent the heat on the heating component 4 from being transferred to the shell 1 corresponding to the power supply component, and the multiple insulation cavities 7 are independent of each other, which can reduce the convection of hot and cold gases between the second side plate 22 and the shell 1, thereby increasing the insulation effect, reducing the power consumption of the heating component 4 and ensuring that the user does not get hot when grasping the shell 1.

[0056] As an example, see Figure 5 , the plurality of heat insulation cavities 7 between the second side plate 22 and the housing 1 are sequentially distributed along the longitudinal direction Y. As an example, please refer to Figure 5 , the plurality of heat insulation cavities 7 between the second side plate 22 and the housing 1 are sequentially distributed along the transverse direction X. As an example, please refer to Figure 5 The multiple insulation cavities 7 between the second side plate 22 and the outer shell 1 are arranged in an array.

[0057] As an example, see Figure 5 The area or volume of at least a portion of the heat-insulating cavity 7 adjacent to the first holding space 51 or the first side plate 21 is smaller than the area or volume of at least a portion of the heat-insulating cavity 7 farther away from the first holding space 51 or the first side plate 21. This is beneficial for preventing heat from being transferred in a direction away from the first side plate 21.

[0058] As an example, see Figure 4 and Figure 5 One side of the first side plate 21 defines a partial boundary of the first retaining space 51, and the other side defines a partial boundary of the second retaining space 52, so that the aerosol generating device can be further miniaturized, and under the action of the insulating cavity 7 between the second side plate 22 and the outer shell 1, it can be ensured that the outer shell 1 corresponding to the power supply component has a suitable temperature when further miniaturized.

[0059] As an example, see Figure 4 and Figure 5 The first side plate 21 and the second side plate 22 are integrally injection molded.

[0060] In one embodiment, reference may be made to Figure 5 The second side plate 22 includes a main body 221, and a partition structure 222 protruding from the main body 221 toward the shell 1, and multiple partition structures 222 are cross-arranged, thereby dividing the space between the second side plate 22 and the shell 1 into multiple independent insulation chambers 7. In other embodiments, the inner wall of the shell has multiple ribs extending toward the second side plate, and the multiple ribs are cross-arranged, or the multiple ribs are cross-arranged with multiple partition plates on the second side plate, thereby dividing the space between the second side plate and the shell into multiple insulation chambers.

[0061] In one embodiment, the second holding space is distributed longitudinally below the first holding space, so that at least a portion of the power supply assembly is disposed below the heating assembly, and the second side plate is located below the heating assembly.

[0062] In one embodiment, reference may be made to Figure 4 and Figure 5 The second holding space 52 is distributed on the lateral side of the first holding space 51, and at least a part of the second holding space 52 can correspond to the first holding space 51 in the lateral direction. The insertion port on the upper cover 6 corresponds to the heating cavity 41 of the heating assembly 4, and the user can clearly identify the relative position of the second holding space 52 through the insertion port 61, thereby selecting the direction to grasp the housing 1.

[0063] As an example, see Figure 4 and Figure 5 The bracket 2 also includes a third side panel 23 that defines a partial boundary of the second holding space 52. The third side panel 23 is laterally located to the side of the second side panel 22 and is arranged opposite to the first side panel 21. In order to meet the design requirements of miniaturization of the aerosol generating device, the third side panel 23 can directly abut the inner wall of the outer shell 1. When the user grasps the aerosol generating device, the third side panel 23 can correspond to the palm or thumb of the user. To this end, a partition structure 222 is provided on the third side panel 23, and a plurality of independent insulation cavities 7 are formed between the third side panel 23 and the outer shell 1, which are used to prevent the heat generated by the heating component 4 from being transferred to the outer shell 1 arranged outside the third side panel 23.

[0064] As an example, see Figure 4 and Figure 6 The second retaining space 52 extends in the longitudinal direction, and the length of the second retaining space 52 in the longitudinal direction is greater than the length of the heating component 4 in the longitudinal direction, or the length of the second retaining space 52 in the longitudinal direction is approximately equal to the length of the aerosol generating device in the longitudinal direction. Therefore, it can accommodate a power source 31 with a stronger power storage capacity, which is beneficial to increase the power supply component to have a longer battery life.

[0065] As an example, see Figure 2 and Figure 5 The second side plate 22 includes a first portion 223 and a second portion 224 located below the first portion 223 in the longitudinal direction. The first portion 223 is located on the side of the heating component 4 in the transverse direction, so that the first portion 223 and the second portion 224 both define a part of the boundary of the second holding space 52, and the second portion 224 is located obliquely below the heating component 4. The power supply 31 is arranged in the second holding space 52, the circuit board 32 is engaged on the second portion 224, and the second portion 224 is located between the power supply 31 and the circuit board 32, that is, the power supply 31 and the circuit board 32 are located on opposite sides of the second side plate 22, so the circuit board 32 does not occupy the second holding space 52, so that the second holding space 52 can accommodate the power supply 31 with a longer battery life. The first portion 223 has a partition structure 222, and at least part of the heat insulation cavity 7 between the second side plate 22 and the housing 1 is formed between the first portion 223 and the housing 1, so that after the second side plate 22 is engaged with the circuit board 32, it can still have a good heat insulation effect on the heating component 3. Furthermore, a plurality of mutually independent heat-insulating cavities 7 are provided on the upper longitudinal side of the circuit board 32 , which can prevent heat from being transferred to the circuit board 32 .

[0066] The third side plate 23 extends longitudinally, partially corresponds to the first portion 223, and the rest corresponds to the second portion 224, so that it is located on the same side of the first portion 223 and the second portion 224 in the transverse direction. This allows the circuit board 32 to have multiple independent heat-insulating cavities 7 on the transverse side, which can prevent heat from being transferred to the circuit board 32. The third side plate 23 defines a partial boundary of the second holding space, so that the power supply 31 has multiple independent heat-insulating cavities 7 on the transverse side, which can prevent heat from being transferred to the housing 1 through the power supply 31.

[0067] As an example, see Figure 4 and Figure 5 The bracket 2 further includes a fourth side plate 24 disposed opposite to the third side plate 23 and a support portion 25 supporting the heating assembly 4. The first side plate 21 and the fourth side plate 24 are disposed on opposite sides of the support portion 25, and the fourth side plate 24 and the first side plate 21 extend in opposite directions from the support portion 25 in the longitudinal direction. Therefore, the fourth side plate 24 is disposed corresponding to the second portion 224 of the second side plate 22 and is located below the first holding space 51.

[0068] In order to meet the design requirements of miniaturization of the aerosol generating device, the fourth side plate 24 may have a partition structure 222, so that the fourth side plate 24 can directly abut the inner wall of the housing 1, and a plurality of independent heat-insulating cavities 7 are formed between the fourth side plate 24 and the housing 1. One side of the circuit board 32 can abut the third side plate 23, and the other side opposite to it can abut the fourth side plate 24, so that the two opposite sides of the circuit board 32 in the transverse direction have a plurality of independent heat-insulating cavities 7, which can prevent heat from being transferred to the circuit board 32.

[0069] By designing the size of the aerosol generating device to be adapted to ergonomics, when the user grasps the aerosol generating device, the portion of the third side panel 23 corresponding to the second portion 224 corresponds to the user's palm, the portion of the third side panel 23 corresponding to the first portion 223 corresponds to the user's thumb, or the first portion 223 corresponds to the user's thumb, and the fourth side panel 24 corresponds to the user's remaining four fingers. This allows the user to grasp the housing 1 of the aerosol generating device comfortably, ensures that the grasping temperature is appropriate, and reduces energy consumption.

[0070] In one embodiment, reference may be made to Figure 3 and Figure 4 The bracket 2 further includes a top plate 26 abutting against the upper cover 6, the top plate 26 defines a part of the boundary of the second holding space 52, and a plurality of independent heat insulation chambers 7 are formed between the top plate 26 and the upper cover 6. This can effectively prevent the upper cover 6 from overheating and further reduce power consumption. Figure 4 In the illustrated embodiment, a plurality of heat-insulating cavities 7 formed between the top plate 26 and the upper cover 6 are arranged in sequence in the transverse direction.

[0071] It should be noted that the bracket 2 can be integrally injection molded, and the top plate 26 , the first side plate 21 , the second side plate 22 , the third side plate 23 , the fourth side plate 24 and the support portion 25 can be integrally injection molded.

[0072] It should be noted that, among the multiple insulation cavities 7 between the shell 1 and the bracket 2, at least two insulation cavities 7 may have different areas, volumes or shapes, and at least two insulation cavities 7 may have the same area, volume or shape.

[0073] As an example, see Figure 2 and Figure 5 The circuit board 32 is fixed on the surface of the bracket 2, the extension length of the partition structure 222 on the second side plate 22 from the main body 221 toward the shell 1 is greater than the thickness of the circuit board 21, or the second part 224 is recessed relative to the first part 223, so that after the circuit board 32 is fixed on the second part 224, there is a gap between the circuit board 32 and the shell 1, and the gap can be filled with air to form an air insulation layer.

[0074] As an example, see Figure 3 and Figure 4 The power supply 31 is fixed on the surface of the bracket 2, and the recessed depth of the second retaining space 52 is greater than the thickness of the power supply 31, so that after the power supply 31 is fixed in the second retaining space 52, there is a gap between the power supply and the housing 1, and the gap can be filled with air to form an air insulation layer.

[0075] As an example, see Figure 3-Figure 5 The heating component 4 is fixed on the support portion 25, the fourth side plate 24 and the first side plate 21 are located on opposite sides of the support portion 25, the partition structure 222 on the fourth side plate 24 abuts against the outer shell 1, and the partition structure 222 on the second side plate 22 abuts against the outer shell 1, so that there is a gap between the surface of the heating component 4 and the outer shell 1, and the gap can be filled with air to form an air insulation layer.

[0076] In the above-mentioned aerosol generating device, the bracket includes multiple partition structures, the multiple partition structures abut the outer shell and form multiple independent insulation chambers, the circuit board or heating component or power supply is fixed on the surface of the bracket, and the circuit board or heating component or power supply is spaced apart from the outer shell, so that part of the surface of the bracket can be installed with the circuit board or heating component or power supply, and part of the surface has the insulation chamber, so that the internal space of the outer shell can be fully utilized, making the aerosol generating device miniaturized, and the circuit board or heating component or power supply is spaced apart from the outer shell to hinder heat transfer to the outer shell, and the multiple independent insulation chambers can reduce the convection of cold and hot gases, thereby increasing the insulation effect, reducing the power consumption of the heating component and ensuring that the user does not get hot when grasping the outer shell.

[0077] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present application.

Claims

1. An aerosol generating device, characterized in that: include: shell; a heating assembly disposed within the housing for heating the aerosol generating article; A power supply and a circuit board are both disposed in the housing, and the circuit board is electrically connected to the heating component and the power supply to control the power supply to provide power to the heating component; and A bracket, the circuit board or the heating component or the power supply is fixed on the surface of the bracket, and the circuit board or the heating component or the power supply is spaced apart from the housing; Wherein, the bracket includes a plurality of partition structures, and the plurality of partition structures abut against the shell to form a plurality of independent heat-insulating cavities.

2. The aerosol generating device according to claim 1, characterized in that The plurality of thermal insulation chambers satisfy at least one of the following conditions: The plurality of heat-insulating cavities are sequentially distributed along the longitudinal direction; The plurality of heat-insulating cavities are sequentially distributed in the transverse direction; or A plurality of the thermal insulation chambers are arranged in an array.

3. The aerosol generating device according to claim 1, characterized in that A first holding space and a second holding space are formed between the housing and the bracket, the heating component is arranged in the first holding space, and the power source is arranged in the second holding space; The bracket includes a second side plate and a first side plate located between the first holding space and the second holding space, and the power supply and the circuit board are fixed on opposite sides of the second side plate.

4. The aerosol generating device according to claim 3, characterized in that At least a portion of the partition structure is formed on the second side plate.

5. The aerosol generating device according to claim 3, characterized in that The area or volume of at least a portion of the heat-insulating cavity adjacent to the heating component is smaller than the area or volume of at least a portion of the heat-insulating cavity relatively far from the heating component.

6. The aerosol generating device according to claim 3, characterized in that The second side plate is located laterally to the side of the first side plate, and the second side plate defines a partial boundary of the second holding space; The bracket further comprises a third side plate defining a boundary of the second holding space portion, the third side plate being arranged opposite to the first side plate; Part of the partition structure is formed on the third side plate.

7. The aerosol generating device according to claim 6, characterized in that The second side plate includes a first portion and a second portion located below the first portion in the longitudinal direction, and the first portion is located laterally to the side of the heating assembly; At least a part of the circuit board is fixed on the second part, and the third side plate extends longitudinally and is located laterally to the first part and the second part; The circuit board is provided with a plurality of heat-insulating cavities both longitudinally above and transversely on the sides.

8. The aerosol generating device according to claim 6, characterized in that The bracket further comprises a fourth side plate arranged opposite to the third side plate and a support portion supporting the heating assembly, the first side plate and the fourth side plate are arranged on opposite sides of the support portion, and the fourth side plate and the first side plate extend in opposite directions from the support portion in the longitudinal direction; Part of the partition structure is formed on the fourth side plate.

9. The aerosol generating device according to claim 3, characterized in that The heating assembly includes a heating chamber, and the aerosol generating device also includes an upper cover, wherein the upper cover is provided with an insertion port for inserting the aerosol generating product into the heating chamber; The bracket also includes a top plate abutting against the upper cover, the top plate defines a portion of the boundary of the second retaining space, and a plurality of independent heat-insulating cavities are formed between the top plate and the upper cover.

10. The aerosol generating device according to claim 9, characterized in that The plurality of heat-insulating cavities formed between the top plate and the upper cover are arranged in sequence along the transverse direction.

11. The aerosol generating device according to claim 1, wherein: The heating assembly comprises a heating cavity, a heating element and a thermal insulation element, wherein the heating cavity is used to receive at least a portion of the aerosol generating article, and the thermal insulation element is arranged around the heating cavity and the heating element.

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