Heater and heating non-combustion device

Abstract

The utility model relates to the technical field of heat-not-burn, and discloses a heater and a heat-not-burn device. The heater comprises a heating base body and a heating piece. The heating base body is provided with a hollow structure, the hollow structure is provided with a gas inlet channel and a mounting area, the hollow structure is used for being inserted into an aerosol generating substrate, and gas can flow into the aerosol generating substrate from the gas inlet channel. The heating element is arranged in the mounting area, the heating element is used for heating to generate heat and transferring the heat to the heating base body, and the heating base body is used for heating the aerosol generating matrix on the peripheral side and the gas in the gas inlet channel so as to directly heat the aerosol generating matrix and indirectly heat the aerosol generating matrix through the heated gas. According to the heater provided by the invention, the combination of central insertion type heating and hot air flow heating is realized, and the power consumption of hot air flow heating can be reduced while an aerosol substrate on the peripheral side of a heating substrate of a heating non-combustion device is prevented from being burnt.

Description

Technical Field

[0001] This application relates to the field of heating without combustion technology, specifically to a heater and a heating without combustion device. Background Technology

[0002] In existing heated non-combustible devices, the heater is the core component used to heat the aerosol-generating matrix to produce aerosols. Existing heaters employ two heating methods: center-insertion heating and hot airflow heating. Center-insertion heating concentrates the heating area too much, easily causing the aerosol-generating matrix in the center to burn, resulting in a burnt smell. Hot airflow heaters are typically located at the bottom of the aerosol-generating matrix, heating it with a preheated airflow. The disadvantage of this method is higher power consumption. Utility Model Content

[0003] This application provides a heater and a heating non-combustible device. The heater combines center insertion heating and hot air flow heating, which avoids the aerosol matrix in the center area from being burnt, while also reducing the power consumption of hot air flow heating.

[0004] According to a first aspect of this application, one embodiment provides a heater, comprising: a heating substrate having a hollow structure, the hollow structure having an air inlet channel and an installation area, the hollow structure being inserted into an aerosol generating matrix, wherein gas can flow from the air inlet channel into the aerosol generating matrix; and a heating element disposed in the installation area, the heating element being used to generate heat and transfer the heat to the heating substrate, the heating substrate being used to heat the surrounding aerosol generating matrix and the gas in the air inlet channel, thereby achieving direct heating of the aerosol generating matrix and indirect heating of the aerosol generating matrix through the heated gas.

[0005] In one embodiment, the hollow structure has a first end and a second end that are disposed opposite to each other, and the installation area is disposed near the first end; the sidewall of the hollow structure is provided with an air outlet, which is disposed near the second end, and the gas flows from the air outlet into the aerosol generating matrix.

[0006] In one embodiment, the first end has an air inlet, through which gas enters the air intake channel for heating.

[0007] In one embodiment, the hollow structure located on the side of the installation area away from the air outlet includes a fixing part, the periphery of which is used to connect with the fixing base of the heating non-combustible device to fix the heating base.

[0008] In one embodiment, the hollow structure has an air inlet on the side wall between the installation area and the air outlet, and gas enters the air inlet channel from the air inlet for heating.

[0009] In one embodiment, the hollow structure located on the side of the installation area away from the air outlet includes a fixing part. The end of the fixing part near the installation area is closed to prevent liquefied aerosol from flowing out from the first end. The fixing part has a fixing space for connecting with the fixing base of the heating non-combustible device to fix the heating base.

[0010] In one embodiment, the heating base has a first heating section and a second heating section, the mounting area and the air outlet are located in the first heating section, and the material of the first heating section is a high thermal conductivity material; the fixing part is located in the second heating section, and the material of the second heating section is a low thermal conductivity material.

[0011] In one embodiment, the air outlets include multiple outlets, which are evenly arranged around the periphery of the heating substrate.

[0012] In one embodiment, the mounting area is recessed inward relative to the outer wall of the heating substrate to form a recessed structure, and the heating element is embedded in the recessed structure.

[0013] In one embodiment, an adhesive layer is provided between the mounting area and the heating element, and the adhesive layer material includes high-temperature ceramic adhesive; or, the mounting area and the heating element are welded together by an active metal brazing process.

[0014] In one embodiment, the heating substrate is made of ceramic or metal; when the heating substrate is metal, the heater further includes an insulating layer that covers the outer surface of the mounting area and is located between the mounting area and the heating element.

[0015] According to a second aspect of this application, one embodiment provides a heat-not-burning device, including a heater as described in the first aspect. The heat-not-burning device further includes a heating chamber for placing an aerosol-generating matrix, and the heater is fixed inside the heating chamber.

[0016] This application provides a heater, including a heating substrate and a heating element. The heating substrate is configured as a hollow structure with an air inlet channel, through which gas can flow into the aerosol generating matrix. The heating element is disposed in the mounting area and is used to heat the heating substrate. When the heating element is working, it can transfer heat to the heating substrate. In addition to directly heating the surrounding aerosol generating matrix, the heating substrate can also heat the gas flowing into the air inlet channel. After the gas flows out of the outlet, it can heat the aerosol generating matrix away from the heating substrate, avoiding overheating of the aerosol generating matrix near the heating substrate to the point of burning. At the same time, due to the direct heating method, the power consumption of the gas flow heating is also reduced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the heater in Example 1;

[0018] Figure 2 This is a schematic diagram of the exploded structure of the heater in Example 1;

[0019] Figure 3 This is a schematic diagram of the heater in Example 3;

[0020] Figure 4 This is a schematic diagram of the exploded structure of the heater in Example 3;

[0021] Figure 5 This is a schematic diagram of the heating non-combustible device in Example 4;

[0022] Figure 6 This is a cross-sectional structural diagram of the heating non-combustible device in Example 4.

[0023] Reference numerals: Heater-100, Heating base-110, Air inlet channel-111, Mounting area-112, Air outlet-113, Air inlet-114, Fixing part-115, Conical structure-116, Heating element-120, Heating mesh-121, Pin-122, Sealing part-130, Heating non-combustible device-200, Outer shell-210, Nozzle-211, Inner shell-220, Power supply mounting cavity-221, Gas flow cavity-222, Heating cavity-230, Circuit board-240, Power supply-250. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0025] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0026] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0027] Example 1

[0028] This embodiment provides a heater 100, please refer to... Figure 1-2 and Figure 6 The heater 100 includes a heating base 110 and a heating element 120.

[0029] Please refer to Figure 1-2 and Figure 6 The heating substrate 110 has a hollow structure, including an air inlet channel 111 and an installation area 112. The hollow structure is inserted into the aerosol generating matrix, allowing gas to flow from the air inlet channel 111 into the aerosol generating matrix. A heating element 120 is disposed in the installation area 112. The heating element 120 generates heat and transfers it to the heating substrate 110. The heating substrate 110 heats the surrounding aerosol generating matrix and the gas within the air inlet channel 111, achieving both direct heating of the aerosol generating matrix and indirect heating of the aerosol generating matrix through the heated gas.

[0030] This application designs the heating substrate 110 as a hollow structure, with an air inlet channel 111 and an installation area 112. Gas can flow from the air inlet channel 111 into the aerosol generating matrix. The heating element 120 is disposed in the installation area 112, heating the heating substrate 110. The heating substrate 110 can be inserted into the aerosol generating matrix, allowing the heating substrate 110 to directly heat the surrounding aerosol generating matrix. Furthermore, the heated gas can indirectly heat the aerosol generating matrix. This avoids overheating of the surrounding aerosol generating matrix by the heating substrate 110, preventing scorching, and also reduces the power consumption of the airflow heating.

[0031] Please refer to Figure 2 The hollow structure has a first end and a second end that are positioned opposite each other, with the mounting area 112 located near the first end. The side wall of the hollow structure is provided with an air outlet 113, which is located near the second end, and gas flows from the air outlet 113 into the aerosol generating matrix.

[0032] This application provides an air outlet 113 on the side wall of the hollow structure, which facilitates the flow of heated gas from the air outlet 113 into the aerosol generating matrix and heats the aerosol generating matrix. Furthermore, by placing the air outlet 113 on the side wall of the hollow structure, the contact area between the heated substrate 110 and the aerosol generating matrix can be reduced, thereby reducing the probability of the aerosol matrix around the heated substrate 110 being scorched.

[0033] Please refer to Figure 2 The first end has an air inlet 114, and the gas enters the air intake channel 111 from the air inlet 114 and is heated.

[0034] By placing the air inlet 114 at the first end, the gas entering the air inlet channel 111 can be fully heated, resulting in a more uniform and stable gas temperature, which can more evenly and fully heat the aerosol matrix.

[0035] Please refer to Figure 2 The hollow structure located on the side of the installation area 112 away from the air outlet 113 includes a fixing part 115. The periphery of the fixing part 115 is used to connect with the fixing base of the heating non-combustible device 200 to fix the heating base 110.

[0036] Since the installation area 112 is equipped with a heating element 120, the heating element 120 has a high temperature and cannot be directly connected to the fixed base of the heating non-combustible device 200 (the fixed base is made of polyether ether ketone). In addition, the distance between the heating element 120 and the fixed base cannot be too close, otherwise the fixed base will be deformed due to the high temperature of the heating element 120.

[0037] Please refer to Figure 2 The heating base 110 has a first heating section and a second heating section. The mounting area 112 and the air outlet 113 are located in the first heating section, which is made of a high thermal conductivity material. The fixing part 115 is located in the second heating section, which is made of a low thermal conductivity material. For example, the first heating section where the air outlet 113 is located is made of aluminum, and the first heating section where the mounting area 112 is located is made of aluminum with a hard anodized surface. The second heating section is also made of aluminum with a hard anodized surface, but the thickness of the hard anodized layer in the first heating section where the mounting area 112 is located is less than the thickness of the hard anodized layer in the second heating section.

[0038] Since the fixing part 115 is connected to the fixing base of the heated non-combustible device 200, in order to avoid damaging the fixing base and preventing excessive heat loss, it is necessary to reduce the temperature of the fixing part 115. This application selects a low thermal conductivity material to make the fixing part 115, which can slow down the heating rate of the fixing part 115 and thus shorten the time that the fixing part 115 is in a high temperature state. However, the mounting area 112 and the heating base 110 in contact with the aerosol generating matrix need to conduct heat quickly, so it is more suitable to use a high thermal conductivity material for the mounting area 112 and the heating base 110 in contact with the aerosol generating matrix.

[0039] Please refer to Figure 1 Alternatively, the air outlet 113 may include multiple outlets, which are evenly arranged around the periphery of the heating substrate 110.

[0040] The air outlets 113 are evenly distributed around the periphery of the heating substrate 110, which facilitates a more uniform flow of heated gas from the hollow structure, improves the uniformity of heating of the aerosol generation matrix, and thus enhances the consumer's inhalation experience. In this embodiment, the air outlets are circular.

[0041] In this embodiment, the mounting area 112 is recessed inward relative to the outer wall of the heating substrate 110 to form a recessed structure (not shown), and the heating element 120 is embedded in the recessed structure.

[0042] In this embodiment, an adhesive layer (not shown) is provided between the mounting area 112 and the heating element 120, and the material of the adhesive layer includes high-temperature ceramic adhesive. Alternatively, the mounting area 112 and the heating element 120 are welded together using an active metal brazing process.

[0043] The high-temperature ceramic adhesive adheres the heating element 120 to the installation area 112, and its performance is not affected when the heating element 120 is heated to a high temperature.

[0044] In this application, the heating substrate 110 is made of ceramic, and is a high thermal conductivity ceramic, such as aluminum nitride ceramic.

[0045] Please refer to Figure 1 Alternatively, the heating substrate 110 has a tapered structure 116 at the end away from the air inlet 114, and the outer diameter of the tapered structure 116 gradually increases from the end away from the air inlet 114 to the end closer to the air inlet 114.

[0046] A tapered structure 116 is provided at one end of the heating substrate 110 away from the air inlet 114, which makes it easy to insert the heating substrate 110 into the aerosol generation matrix.

[0047] Please refer to Figure 1 Or 2, the heating substrate 110 is a circular tubular structure.

[0048] In this embodiment, please refer to Figure 2 The heating element 120 includes a heating mesh 121 and leads 122. The materials of the heating mesh 121 include, but are not limited to, titanium wire, iron-nickel alloy wire, SUS316 stainless steel wire, SUS904 stainless steel wire, tungsten wire, constantan alloy wire, manganese-copper alloy wire, germanium-manganese-copper alloy wire, nickel-chromium alloy wire, iron-chromium-aluminum alloy wire, and carbon wire. The heating element of the heating mesh 121 is selected from materials with a stability coefficient (TCR) exceeding 800 ppm / ℃.

[0049] Example 2

[0050] The difference from Embodiment 1 lies in the material of the heating base 110. In this embodiment, the heating base 110 is made of metal. When the heating base 110 is made of metal, the heater 100 also includes an insulating layer, which covers the outer surface of the mounting area 112 and the fixing part 115.

[0051] In this embodiment, the insulating layer on the outer surface of the mounting area 112 is obtained by hard anodizing of aluminum, and is a hard oxide layer. The thickness of the insulating layer on the outer surface of the mounting area 112 is 10-30 μm. The insulating layer on the outer surface of the fixing part 115 is obtained by hard anodizing of aluminum, and is a hard oxide layer. The thickness of the hard oxide layer of the fixing part 115 is 10-200 μm, preferably 100-200 μm. The thickness of the hard oxide layer in the mounting area 112 is 10-30 μm.

[0052] Example 3

[0053] This embodiment provides a heater 100, please refer to... Figure 3-4 The heater 100 includes a heating base 110 and a heating element 120.

[0054] Please refer to Figure 3-4 The heating substrate 110 has a hollow structure, including an air inlet channel 111 and an installation area 112. The hollow structure is inserted into the aerosol generating matrix, allowing gas to flow from the air inlet channel 111 into the aerosol generating matrix. A heating element 120 is disposed in the installation area 112. The heating element 120 generates heat and transfers it to the heating substrate 110. The heating substrate 110 heats the surrounding aerosol generating matrix and the gas within the air inlet channel 111, achieving both direct heating of the aerosol generating matrix and indirect heating of the aerosol generating matrix through the heated gas.

[0055] This application designs the heating substrate 110 as a hollow structure, with an air inlet channel 111 and an installation area 112 within the hollow structure. Gas can flow from the air inlet channel 111 into the aerosol generating matrix. The heating element 120 is disposed in the installation area 112, heating the heating substrate 110. The heating substrate 110 can be inserted into the aerosol generating matrix, allowing the heating substrate 110 to directly heat the surrounding aerosol generating matrix. Furthermore, the heated gas can indirectly heat the aerosol generating matrix. This avoids overheating of the surrounding aerosol generating matrix by the heating substrate 110, preventing scorching, and also reduces the power consumption of the airflow heating.

[0056] Please refer to Figure 4 The hollow structure has a first end and a second end that are positioned opposite each other, with the mounting area 112 located near the first end. The side wall of the hollow structure is provided with an air outlet 113, which is located near the second end, and gas flows from the air outlet 113 into the aerosol generating matrix.

[0057] This application provides an outlet 113 on the side wall of the hollow structure, which facilitates the flow of heated gas into the aerosol generating matrix and heats the aerosol generating matrix. Furthermore, by placing the outlet 113 on the side wall of the hollow structure, the contact area between the heated substrate 110 and the aerosol generating matrix can be reduced, thereby reducing the probability of the aerosol matrix around the heated substrate 110 being scorched.

[0058] In this embodiment, the hollow structure has an air inlet (not shown) on the side wall between the installation area 112 and the air outlet 113, and the gas enters the air inlet channel 111 from the air inlet for heating.

[0059] Please refer to Figure 3 Alternatively, the hollow structure located on the side of the installation area 112 away from the air outlet 113 includes a fixing part 115. The fixing part 115 is closed at one end near the installation area 112 to prevent liquefied aerosol from flowing out from the first end. The fixing part 115 has a fixing space for connecting with the fixing base of the heating non-combustible device 200 to fix the heating base 110.

[0060] The aerosol generated by the heated aerosol-generating matrix will also liquefy within the hollow structure. Sealing one end of the fixing part 115 prevents the liquid aerosol from flowing back into the opening at the first end, thus avoiding contamination of other spaces in the heated non-combustible device 200 or damage to other electronic components. In addition to its outer periphery, the fixing part 115 can also be fixedly connected to the fixing substrate, thereby increasing the bonding strength between the heated substrate 110 and the fixing substrate.

[0061] For details, please refer to Figure 3 Alternatively, heater 100 includes a closure 130 that closes one end of fixing part 115 near installation area 112. The closure 130 and the side wall of fixing part 115 form a fixing space. When heater 100 is fixed to the fixing base of heating non-combustible device 200, the fixing base enters the fixing space through in-mold injection molding, which makes the fixing strength of the fixing base and heating base 110 as a whole higher.

[0062] Please refer to Figure 4 The heating base 110 has a first heating section and a second heating section. The mounting area 112 and the air outlet 113 are located in the first heating section, which is made of a high thermal conductivity material. The fixing part 115 is located in the second heating section, which is made of a low thermal conductivity material. For example, the first heating section where the air outlet 113 is located is made of aluminum, and the first heating section where the mounting area 112 is located is made of aluminum with a hard anodized surface. The second heating section is also made of aluminum with a hard anodized surface, but the thickness of the hard anodized layer in the first heating section where the mounting area 112 is located is less than the thickness of the hard anodized layer in the second heating section.

[0063] Since the fixing part 115 is connected to the fixing base of the heated non-combustible device 200, in order to avoid damaging the fixing base and preventing excessive heat loss, it is necessary to reduce the temperature of the fixing part 115. This application selects a low thermal conductivity material to make the fixing part 115, which can slow down the heating rate of the fixing part 115 and thus shorten the time that the fixing part 115 is in a high temperature state. However, the mounting area 112 and the heating base 110 in contact with the aerosol generating matrix need to conduct heat quickly, so it is more suitable to use a high thermal conductivity material for the mounting area 112 and the heating base 110 in contact with the aerosol generating matrix.

[0064] Please refer to Figure 3 Alternatively, 4, the air outlet 113 includes multiple outlets, and the multiple air outlets 113 are evenly arranged around the periphery of the heating base 110.

[0065] The air outlets 113 are evenly distributed around the periphery of the heating substrate 110, which facilitates a more uniform flow of heated gas from the hollow structure, improves the uniformity of heating of the aerosol generation matrix, and thus enhances the consumer's inhalation experience. In this embodiment, the air outlets are circular.

[0066] In this embodiment, the mounting area 112 is recessed inward relative to the outer wall of the heating substrate 110 to form a recessed structure, and the heating element 120 is embedded in the recessed structure.

[0067] In this embodiment, an adhesive layer is provided between the mounting area 112 and the heating element 120, and the adhesive layer material includes high-temperature ceramic adhesive. Alternatively, the mounting area 112 and the heating element 120 are welded together using an active metal brazing process.

[0068] The high-temperature ceramic adhesive adheres the heating element 120 to the installation area 112, and its performance is not affected when the heating element 120 is heated to a high temperature.

[0069] In this application, the heating substrate 110 is made of ceramic, and is a high thermal conductivity ceramic, such as aluminum nitride ceramic.

[0070] Please refer to the figure. The heating base 110 has a conical structure 116 at the end away from the air inlet. The outer diameter of the conical structure 116 gradually increases from the end away from the air inlet to the end closer to the air inlet.

[0071] A conical structure 116 is provided at the end of the heating substrate 110 away from the air inlet, which makes it easy to insert the heating substrate 110 into the aerosol generation matrix.

[0072] Please refer to Figure 3 Alternatively, the heating substrate 110 has a circular tubular structure.

[0073] In this embodiment, please refer to Figure 3-4 The heating element 120 includes a heating mesh 121 and leads 122. The materials of the heating mesh 121 include, but are not limited to, titanium wire, iron-nickel alloy wire, SUS316 stainless steel wire, SUS904 stainless steel wire, tungsten wire, constantan alloy wire, manganese-copper alloy wire, germanium-manganese-copper alloy wire, nickel-chromium alloy wire, iron-chromium-aluminum alloy wire, and carbon wire. The heating element of the heating mesh 121 is selected from materials with a stability coefficient (TCR) exceeding 800 ppm / ℃.

[0074] Example 4

[0075] This embodiment provides a heating non-combustible device 200. Please refer to [reference needed]. Figure 5-6 The heated non-combustible device 200 includes a housing 210, an inner housing 220, a heating chamber 230, a circuit board 240, a power supply 250, and a heater 100 of any one of the embodiments 1-3.

[0076] Please refer to Figure 6The inner shell 220 is disposed within the outer shell 210, and the inner shell 220 has a power supply 250 mounting cavity 221 and a gas flow cavity 222. The power supply 250 mounting cavity 221 and the gas flow cavity 222 are arranged side by side, and the power supply 250 is disposed within the power supply 250 mounting cavity 221. The heating cavity 230 is disposed near the nozzle 211 relative to the gas flow cavity 222. The heating cavity 230 contains an aerosol generating matrix. A portion of the heating substrate 110 in the heater 100 is inserted into the heating cavity 230, and a portion of the pin 122 extends into the gas flow cavity 222 and passes through the gas flow cavity 222 to be disposed with the circuit board 240. The circuit board 240 is disposed at the bottom of the gas flow cavity 222. The circuit board 240 can control the temperature of the heating grid 121 by reading the resistance value of the heating element in real time, thus eliminating the need for an additional temperature sensor.

[0077] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A heater, characterized by, The application relates to a heater for a heat-not-burn device. The heater comprises: a heating base having a hollow structure with an air inlet channel and a mounting area, the hollow structure being used for insertion into an aerosol generating substrate, and gas being able to flow into the aerosol generating substrate from the air inlet channel; 2. The heater of claim 1, wherein a heating element arranged in the mounting area, the heating element being used for heating to generate heat and transferring the heat to the heating base, the heating base being used for heating the aerosol generating substrate on the periphery and the gas in the air inlet channel to realize direct heating of the aerosol generating substrate and indirect heating of the aerosol generating substrate through the heated gas.

3. The heater of claim 2, wherein The hollow structure has oppositely arranged first and second ends, and the mounting area is arranged close to the first end; a side wall of the hollow structure is provided with an air outlet arranged close to the second end, and gas flows into the aerosol generating substrate from the air outlet.

4. The heater of claim 3, wherein The first end is provided with an air inlet, and gas enters the air inlet channel from the air inlet for heating.

5. The heater of claim 2, wherein The side of the hollow structure away from the air outlet in the mounting area comprises a fixing part, and the periphery of the fixing part is used for connecting with a fixing base of the heat-not-burn device to fix the heating base.

6. The heater of claim 5, wherein, The side wall of the hollow structure between the mounting area and the air outlet is provided with an air inlet, and gas enters the air inlet channel from the air inlet for heating.

7. The heater as claimed in claim 4 or 6, wherein The side of the hollow structure away from the air outlet in the mounting area comprises a fixing part, and one end of the fixing part close to the mounting area is closed to block the flow of liquefied aerosol from the first end, and the fixing part is provided with a fixing space used for connecting with the fixing base of the heat-not-burn device to fix the heating base.

8. The heater of claim 2, wherein, The heating base has a first heating section and a second heating section, the mounting area and the air outlet are arranged in the first heating section, and the material of the first heating section is a high-thermal-conductivity material; and the fixing part is arranged in the second heating section, and the material of the second heating section is a low-thermal-conductivity material.

9. The heater of claim 1, wherein, The air outlet comprises a plurality of air outlets, and the plurality of air outlets are uniformly arranged around the periphery of the heating base.

10. The heater of claim 1, wherein The mounting area is recessed inwardly relative to the outer side wall of the heating base to form a recessed structure, and the heating element is embedded in the recessed structure. An adhesive layer is arranged between the mounting area and the heating element, and the material of the adhesive layer comprises high-temperature ceramic glue.

11. The heater of claim 1, wherein Alternatively, the mounting area and the heating element are welded through an active metal brazing process. The material of the heating base is ceramic or metal.

12. A heat-not-burn device, characterized in that When the heating base is metal, the heater further comprises an insulating layer covering the outer surface of the mounting area and arranged between the mounting area and the heating element. The heat-not-burn device comprises the heater according to any one of claims 1-11 and a heating cavity used for placing the aerosol generating substrate, and the heater is fixed in the heating cavity.

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