Aerosol generating device

Abstract

The invention discloses an aerosol generating device which comprises a heating piece used for heating an aerosol generating product to generate aerosol and a containing cavity used for containing the aerosol generating product, a through hole is formed in the bottom of the containing cavity, and the heating piece is inserted into the containing cavity through the through hole for heating; a power supply assembly; the heating element mounting seat comprises a base used for fixing a heating element; the elastic separation layer is arranged on the top surface of the base and divides the aerosol generating device into a first area and a second area in the axial direction, so that fluid in the first area is not communicated with fluid in the second area; the accommodating cavity is located in the first area. The power assembly is located in the second area. According to the aerosol generating device, the heat loss of a high-temperature space can be reduced, the possibility that the base and the power supply assembly are polluted and corroded is reduced, the service life of the aerosol generating device is prolonged, and the reliability of the aerosol generating device is improved.

Description

Technical Field

[0001] The present invention relates to the field of heat-not-burn electronic smoking devices, and in particular to an aerosol generating device. Background Art

[0002] As people pay more and more attention to health, they gradually realize that traditional cigarettes are harmful to health, which has led to the emergence of "heat-not-burn cigarettes". Heat-not-burn cigarettes heat the tobacco in the aerosol-generating matrix to release aerosols, so that users can get a smoking experience. Unlike traditional cigarettes, which are not burned, heat-not-burn cigarettes do not produce complex chemical reactions. Therefore, compared with traditional cigarettes, heat-not-burn cigarettes reduce harmful substances such as tar and carbon monoxide brought by traditional cigarettes while meeting the physiological needs of users, that is, users can get experience while reducing the inhalation of harmful substances.

[0003] At present, the heating methods of heat-not-burn tobacco products are mainly divided into two forms: inner core heating and outer heating. Among them, in the heat-not-burn tobacco products with inner core heating, during daily use, the surface of the heating element will come into contact with the aerosol-generating matrix, and the maximum operating temperature range of the heating element can usually reach 350-420°C. At this temperature, the surface of the tobacco material can also reach 120-190°C, although the materials of the components in contact with it can withstand such temperatures. However, it was found during the working process that the heating element will form a high temperature and produce a substance that can flow. While the high temperature is transferred to the tobacco material, it will release heat in the surrounding area, and through the heat conduction of the material, part of the heat will be transferred to the outer shell of the tobacco product through the various components in the tobacco product and dissipated. In addition, the flowing substance will flow arbitrarily in the tobacco product, such as flowing to the power supply component, causing corrosion and short circuit. Summary of the invention

[0004] The present invention provides an aerosol generating device to solve the above problems.

[0005] In a first aspect, the present invention discloses an aerosol generating device, comprising:

[0006] A heating element for heating the aerosol generating article to generate an aerosol;

[0007] A containing cavity, used to contain the aerosol generating product, wherein a through hole is provided at the bottom of the containing cavity, and the heating element is inserted into the containing cavity through the through hole for heating;

[0008] Heating element mount, including:

[0009] A base, used for fixing the heating element;

[0010] an elastic separation layer, disposed on the top surface of the base, to separate the aerosol generating device into a first area and a second area along the axial direction, so that the fluids in the first area and the second area are not connected;

[0011] Power supply components;

[0012] The accommodating cavity is located in the first area, and the power supply component is located in the second area.

[0013] The above technical solution can reduce heat loss in high-temperature spaces while reducing the possibility of contamination and corrosion of the base and power supply components, thereby improving the service life and reliability of the aerosol generating device.

[0014] According to another specific embodiment of the present invention, the heating element includes a heating part and a mounting part, the mounting part is arranged on the radially outer side of the heating part, the bottom surface of the heating element mounting seat is provided with an inner groove, the mounting part is embedded in the inner groove, and the inner wall of the inner groove is provided with a limiting part, and the limiting part is used to limit the movement of the mounting part toward the accommodating cavity.

[0015] According to another specific embodiment of the present invention, the side portion of the mounting portion includes a step-shaped structure, and the limiting portion cooperates with the step-shaped structure to limit the movement of the mounting portion toward the accommodating cavity.

[0016] According to another specific embodiment of the present invention, the aerosol generating device also includes a hard first support member, which supports the mounting portion to cooperate with the heating element mounting seat to fix the mounting portion; the first support member includes a first hollow portion, and the projection of the insertion portion of the heating portion located in the mounting portion in the axial direction is located within the cross-sectional range of the first hollow portion.

[0017] According to another specific embodiment of the present invention, the aerosol generating device further comprises:

[0018] An elastic member, wherein the elastic member is located between the first support member and the mounting portion to close the opening of the first hollow portion; or the first support member is located between the elastic member and the mounting portion, and the elastic member fills the first hollow portion to prevent fluid from flowing into the first hollow portion.

[0019] According to another specific embodiment of the present invention, the surface of the elastic member close to the mounting portion includes a sealing plane, and the elastic member abuts against the mounting portion to prevent the fluid from flowing into the second area.

[0020] According to another specific embodiment of the present invention, the elastic member includes a second hollow portion; when the elastic member is located between the first supporting member and the mounting portion, at least a portion of the first hollow portion is inserted into the second hollow portion so that the end of the first hollow portion abuts against the mounting portion through the elastic member; when the first supporting member is located between the elastic member and the mounting portion, at least a portion of the second hollow portion is inserted into the first hollow portion so that the end of the second hollow portion abuts against the mounting portion.

[0021] According to another specific embodiment of the present invention, when the first support member is located between the elastic member and the mounting portion, the elastic member further includes a base portion, the second hollow portion is arranged on the base portion, and the first support member abuts against the mounting portion through the base portion.

[0022] According to another specific embodiment of the present invention, the aerosol generating device further comprises a second supporting member, and the second supporting member presses the elastic member to press the first supporting member against the mounting portion.

[0023] According to another specific embodiment of the present invention, the electrode lead wire of the heating element passes through the elastic member and is held by the elastic member.

[0024] According to another specific embodiment of the present invention, the aerosol generating device further comprises:

[0025] A surrounding member is abutted against the heating member mounting seat along the axial direction, the surrounding member comprises a hollow cavity, the hollow cavity is used to accommodate the accommodating cavity, a second through hole is provided at the bottom of the hollow cavity, the second through hole and the through hole are butted against each other along the axial direction, and the heating member is inserted into the accommodating cavity through the second through hole and the through hole respectively;

[0026] The end of the second through hole abuts against the elastic separation layer to prevent the fluid from flowing out of the hollow cavity through the gap between the end of the second through hole and the elastic separation layer.

[0027] According to another specific embodiment of the present invention, the thermal conductivity of the elastic separation layer is 0.1-5.5 W / (m*K), and the tolerable temperature is 250-350°C; and / or the thermal conductivity of the base is 0.1-15 W / (m*K), and the tolerable temperature is 250-350°C.

[0028] According to another specific embodiment of the present invention, the heater mounting seat is manufactured by a secondary injection molding process.

[0029] In a second aspect, the present invention discloses an aerosol generating device, comprising:

[0030] a heating element, which is used to heat the aerosol generating product to generate an aerosol, and comprises a heating portion and a mounting portion, wherein the mounting portion is arranged radially outside the heating portion;

[0031] a containing cavity, which is used to contain the aerosol generating product, wherein a through hole is provided at the bottom of the containing cavity, and the heating element is inserted into the containing cavity through the through hole for heating;

[0032] A heating element mounting seat, which is used to fix the heating element, wherein the bottom surface of the heating element mounting seat is provided with an inner groove, the mounting portion is embedded in the inner groove, and the inner wall of the inner groove is provided with a limiting portion, and the limiting portion is used to limit the mounting portion from moving toward the accommodating cavity;

[0033] a first support member, which supports the mounting portion to cooperate with the heating element mounting seat to fix the mounting portion; the first support member comprises a first hollow portion, and an axial projection of an insertion portion of the heating element located in the mounting portion is located within a cross-sectional range of the first hollow portion;

[0034] An elastic member, wherein the elastic member is located between the first support member and the mounting portion to close the opening of the first hollow portion; or the first support member is located between the elastic member and the mounting portion, and the elastic member fills the first hollow portion to prevent fluid from flowing into the first hollow portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A cross-sectional schematic diagram of an aerosol generating device according to an embodiment of the present invention is shown;

[0036] Figure 2 A partial cross-sectional schematic diagram of an aerosol generating device according to an embodiment of the present invention is shown;

[0037] Figure 3 A partial exploded schematic diagram of an aerosol generating device according to an embodiment of the present invention is shown;

[0038] Figure 4 A partial cross-sectional schematic diagram of an aerosol generating device according to another embodiment of the present invention is shown;

[0039] Figure 5 A partial exploded schematic diagram of an aerosol generating device according to another embodiment of the present invention is shown;

[0040] Figure 6 Show Figure 4 Schematic diagram of top view;

[0041] Figure 7 A schematic diagram of an explosion of an aerosol generating device according to an embodiment of the present invention is shown.

[0042] (Explanation of symbols)

[0043] 0. Aerosol generating device, 01. Upper shell, 011. Inner shell, 0111. First foam, 0112. First magnet, 012. Air inlet, 02. Second shell, 021. Bracket, 03. Top cover, 04. Bracket end piece, 05. Decorative sheet, 1. Accommodating cavity, 11. Through hole, 2. Heating element, 21. Heating part, 22. Mounting part, 3. Heating element mounting seat, 31. Elastic partition layer, 32. Base, 33. Inner groove, 4. Battery, 40. Electrode lead, 41 .Circuit board, 42.Button, 43.Inner button, 44.Button light, 5.Second support, 6.Elastic member, 6'.Elastic member, 61.Second hollow part, 61'.Second hollow part, 62.Base, 7.First support, 7'.First support, 71.First hollow part, 71'.First hollow part, 8.Enclosing member, 81.Hollow cavity, 811.Second through hole, 812.Ventilation hole, 82.Magnet bracket, 83.Second magnet, 84.Second foam, 85.Silicone ring

[0044] x. axial direction, y. radial direction of the aerosol generating article, z. first direction, a. first region, b. second region, DETAILED DESCRIPTION

[0045] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0046] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0047] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0048] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0049] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0050] In an embodiment of the present invention, the aerosol generating product may be a smoking product in the shape of a cigarette; preferably, the aerosol generating product is a solid aerosol generating product, including but not limited to tobacco flakes, tobacco particles, tobacco shreds, reconstituted tobacco and the like, which can be heated by an aerosol generating device to generate smoke for the user to inhale, wherein the aerosol generating device is also a smoking utensil.

[0051] like Figure 1-6 As shown, the present invention provides an aerosol generating device 0, comprising a heating element 2, a receiving chamber 1, a heating element mounting seat 3 and a power supply assembly. The heating element 2 is used to heat an aerosol generating product to generate an aerosol. The power supply assembly, for example, comprises a battery 4 and a circuit board 41.

[0052] The accommodating chamber 1 is used to accommodate the aerosol generating product. The bottom of the accommodating chamber 1 is provided with a through hole 11. The heating element 2 is inserted into the accommodating chamber 1 through the through hole 11 for heating. Specifically, when the aerosol generating product is located in the accommodating chamber 1, the heating element 2 is inserted into the accommodating chamber 1 through the through hole 11 and then inserted into the aerosol generating product for heating. That is, the heating element 2 generates high temperature when working, so that the accommodating chamber 1 forms a high temperature space, that is, the accommodating chamber 1 forms the core area where the aerosol generating product is heated, thereby achieving heating of the aerosol generating product to generate aerosol.

[0053] The heating element mounting seat 3 includes a base 32 and an elastic separation layer 31. The base 32 is used to fix the heating element 2 to restrict the degree of freedom of the heating element 2. The elastic separation layer 31 is arranged on the top surface of the base 32. That is, the elastic separation layer 31 and the base 32 are arranged in close contact, and the elastic separation layer 31 is arranged along the axial direction (for example, Figure 1 The x direction shown in the figure) is located between the accommodating cavity 1 and the base 32.

[0054] Preferably, the elastic separation layer 31 separates the aerosol generating device 0 in the axial direction (eg Figure 1The first region a and the second region b are separated into a first region a and a second region b in the x direction shown in the figure, so that the fluids in the first region a and the second region b are not connected. The fluid may specifically include gas, liquid, and a gas-liquid mixture. For example, when there is airflow and liquid only in the first region a, the airflow and liquid will only flow in the first region a and will not reach the second region b. The accommodating chamber 1 is located in the first region a, and the power supply assembly is located in the second region b.

[0055] By adopting the above technical solution, the present invention divides the aerosol generating device 0 into a first area a and a second area b along the axial direction through an elastic partition layer 31. Among them, the accommodating chamber 1 is located in the first area a, that is, the high-temperature space is located in the first area a. The power supply component is located in the second area b, and then the second area b is separated from the high-temperature space by the elastic partition layer 31, thereby reducing the potential risks caused by high temperature. And the setting of the elastic partition layer 31 not only physically separates the aerosol generating device 0 into the first area a and the second area b along the axial direction, but also plays a blocking role in the heat transfer process, so that the heat is effectively retained in the first area a, reducing the heat loss of the high-temperature space, and can be more applied to heating aerosol generating products, and also avoids the base 32 directly conducting heat to the power supply component, thereby protecting the power supply component from the influence of high temperature, and ensuring the stability and life of the power supply component.

[0056] In addition, the design of the elastic separation layer 31 also ensures that the fluids in the first area a and the second area b are not connected. This means that during the aerosol generation process, even if gas and liquid are generated in the first area a, the gas cannot enter the second area b, and the liquid cannot flow directly to the area where the power supply assembly is located. The gas cannot carry the liquid into the second area b, thereby avoiding the contamination and corrosion of the base 32 and the power supply assembly by the liquid or volatile substances that may be generated during the heating process of the aerosol generating product. As a result, not only the safety of the aerosol generating device 0 is improved, but also the service life of the aerosol generating device 0 is significantly extended. Since the power supply assembly is no longer threatened by high temperature and corrosive liquids, the overall stability and reliability of the aerosol generating device 0 are greatly improved.

[0057] Therefore, compared with the prior art, the present invention achieves effective isolation of heat and fluid in the first area a through the isolation of the elastic separation layer 31, which not only reduces the heat loss in the high-temperature space and allows more heat to be applied to the heated aerosol generating products, but also reduces the possibility of contamination and corrosion of the base 32 and the power supply assembly, thereby improving the service life and reliability of the aerosol generating device 0.

[0058] In this embodiment, the heating element mounting seat 3 is manufactured by a secondary injection molding process, that is, the elastic separation layer 31 and the base 32 are integrally formed. Specifically, by being manufactured by a secondary injection molding process, the tightness of the connection between the elastic separation layer 31 and the base 32 can be ensured, further reducing the possibility of the base 32 being contaminated and corroded.

[0059] In some other possible embodiments provided by the present invention, continue to refer to Figure 1 As shown, the heating element 2 includes a heating portion 21 and a mounting portion 22, and the mounting portion 22 is arranged radially outside the heating portion 21. Specifically, the mounting portion 22 is provided with an insertion hole, and the heating portion 21 is fixedly connected to the mounting portion 22 through the insertion hole. The radial direction of the heating portion 21 is parallel to the first direction (for example, Figure 1 The heat generating portion 21 is used to directly heat the aerosol generating product by actively generating heat, and the thermal conductivity of the mounting portion 22 does not exceed the thermal conductivity of the heat generating portion 21.

[0060] Furthermore, an inner groove 33 is provided on the bottom surface of the heating element mounting seat 3, and the mounting portion 22 is embedded in the inner groove 33. A limiting portion is provided on the inner wall of the inner groove 33, and the limiting portion is used to limit the movement of the mounting portion 22 toward the accommodating chamber 1. By limiting the mounting portion 22 at the limiting portion, the mounting portion 22 is not exposed to the high-temperature space, reducing the contact area between the mounting portion 22 and the high-temperature space, thereby reducing the heat loss caused by conduction through the mounting portion 22. It is also beneficial to achieve a stable installation of the heating element 2 and facilitate the replacement of the heating element 2. The interlocking structure of the inner groove 33 and the mounting portion 22, in conjunction with the function of the limiting portion, forms a compact installation method, saving installation space.

[0061] Furthermore, combined with Figure 3 As shown, the side of the mounting portion 22 includes a step-like structure, and the limiting portion cooperates with the step-like structure to limit the movement of the mounting portion 22 toward the accommodating chamber 1. The side of the mounting portion 22 can be the mounting portion 22 along the radial direction of the heating portion 21 (the radial direction of the heating portion 21 is parallel to the radial direction of the aerosol generating product, and the radial direction of the aerosol generating product is, for example, Figure 6An extension portion extending in the y direction (as shown). The contact area between the mounting portion 22 and the limiting portion is increased by the design of the step-like structure, thereby improving the stability of the connection, so that the heating element 2 is fixed more firmly and is not easy to loosen. Preferably, the limiting portion and the step-like structure can be matched in a snap-fit ​​manner, which simplifies the installation process and eliminates the need for additional fixings, such as screws or adhesives. This not only reduces the manufacturing cost, but also reduces the installation time, and facilitates the rapid disassembly and reinstallation of the heating element 2, and facilitates maintenance and replacement. In addition, the side design of the stepped mounting portion 22 also has a certain guiding effect, so that the mounting portion 22 can be accurately aligned when embedded in the inner groove 33, reducing installation errors and improving the assembly accuracy of the overall aerosol generating device 0.

[0062] In some other possible embodiments provided by the present invention, combined with Figure 1-Figure 5 As shown, the aerosol generating device 0 further includes a hard first support member (7, 7') for supporting the mounting portion 22, so as to cooperate with the heating element mounting seat 3 to fix the mounting portion 22. Specifically, the first support member (7, 7') is axially arranged below the mounting portion 22. The presence of the hard first support member (7, 7') can provide additional supporting force to limit the movement of the mounting portion 22 toward the second support member 5. In combination with the arrangement of the inner groove 33 and the limiting portion, the fixed installation of the heating element 2 is achieved.

[0063] Wherein, the first support member (7, 7') includes a first hollow portion (71, 71'), and the axial projection of the insertion portion of the heating part 21 located in the mounting portion 22 is located within the cross-sectional range of the first hollow portion (71, 71'). In other words, the insertion portion of the heating part 21 can be accommodated by the first hollow portion (71, 71') when it protrudes from the mounting portion 22. Preferably, the maximum radial dimension of the insertion portion of the heating part 21 is less than or equal to the radial dimension of the first hollow portion (71, 71'). As a result, it is conducive to compatibility with processing errors. For example, when there are processing residues (such as the insertion portion protruding from the mounting portion) and / or adhesives and other substances when the heating part 21 and the mounting portion 22 are assembled, it can prevent assembly interference, ensure the normal assembly of the heating element 2, and effectively improve the efficiency and yield of the assembly production line.

[0064] The inventors also considered that once the power supply assembly is contaminated or corroded by fluid, the consequences will be serious, such as it is very easy to cause smoking device failure or even fire. Based on this, it is hoped to provide a double insurance design that can further reduce the risk of fluid flowing into the power supply assembly. Figure 1-Figure 5 As shown, the aerosol generating device 0 further comprises an elastic member (6, 6'). Figure 4-Figure 5 As shown, the elastic member 6' is located between the first support member 7' and the mounting portion 22 to close the opening of the first hollow portion 71'; or as shown Figure 1-Figure 3 As shown, the first support member 7 is located between the elastic member 6 and the mounting portion 22, and the elastic member 6 fills the first hollow portion 71 to prevent fluid from flowing into the first hollow portion (71, 71'). Specifically, the elastic member (6, 6') is made of, for example, silicone.

[0065] Since the elastic partition layer 31 axially separates the aerosol generating device 0 into the first area a and the second area b, when the fluid in the first area a flows into the second area b due to force majeure, research has found that it is also very likely that the fluid flows in through the space between the heating element mounting seat 3 and the mounting portion 22, and then reaches the bottom of the mounting portion 22. At this time, the elastic member (6, 6') axially located below the mounting portion 22 further plays a sealing role, and also prevents the fluid from flowing into the first hollow portion (71, 71'), thereby preventing the fluid from continuing to flow into the power supply assembly axially. Therefore, through the double insurance of the elastic partition layer 31 and the elastic member (6, 6'), the risk of the fluid flowing into the power supply assembly is further reduced, thereby completely and effectively solving the problem of contamination and corrosion of the power supply assembly affected by the fluid. In addition, when the electrode lead 40 of the heating element 2 passes through the elastic member (6, 6') and is electrically connected to the power supply assembly, the buffering characteristics of the elastic member (6, 6') itself can be used to support the electrode lead 40 to reduce or minimize the internal noise of the device caused by the vibration of the electrode lead 40 when operating the device, and the thermal insulation performance of the elastic member (6, 6') itself further reduces the heat loss along the axial direction.

[0066] Specifically, in this embodiment, Figure 5 As shown, the elastic member 6' is axially located between the first support member 7' and the mounting portion 22 to close the opening of the first hollow portion 71'. Specifically, the closing method is preferably covering. Thus, while ensuring compatibility with processing errors, it is possible to prevent the fluid from flowing into the first hollow portion 71'. Furthermore, the elastic member 6' is stepped to match the inner groove 33, thereby achieving support and fixing of the heating element 2.

[0067] Preferably, if Figure 5 As shown, the surface of the elastic member 6' close to the mounting portion 22 is a sealing plane, and the elastic member 6' abuts against the mounting portion 22 to prevent the fluid from flowing into the second area b. Thus, the elastic member 6' and the bottom surface of the mounting portion 22 are closely fitted to improve the sealing effect.

[0068] In another embodiment of the present invention, the first support member 7 is located between the elastic member 6 and the mounting portion 22, and the elastic member 6 fills the first hollow portion 71 to prevent the fluid from flowing into the first hollow portion 71. Therefore, the presence of the first support member 7 also provides additional support for the elastic member 6, and also enhances the structural strength of the entire device, preventing the mounting portion 22 from shaking due to the elasticity, and also makes the elastic member 6 less likely to deform when bearing the weight and thermal expansion of the heating element 2, further improving the fixing effect of the heating element 2 and the reliability of the device. Specifically, as Figure 3 As shown, the first support member 7 is in a step-like shape to match the inner groove 33 , thereby achieving the support and fixation function for the heating element 2 .

[0069] Preferably, the material of the first support member 7 is PEEK material, which has good high temperature resistance. Further, the first support member 7 is located between the elastic member 6 and the mounting portion 22. At this time, since the material of the first support member 7 is PEEK material, it has lower heat absorption performance than the elastic member 6, and the first support member 7 is located between the mounting portion 22 and the elastic member 6, it means that during the heating process, the heat loss from the high temperature space to the first support member 7 can be effectively reduced, thereby effectively reducing the heat loss in the high temperature space, improving the heating efficiency, and being conducive to increasing the heat ratio obtained by the aerosol generating product.

[0070] The inventors also considered that during the heating process, the difference in thermal conductivity between different components affects the speed of heat propagation. Based on this, in some other possible embodiments provided by the present invention, the thermal conductivity of the elastic separation layer 31 is 0.1-5.5W / (m*K), the tolerance temperature is preferably 250-350°C, and the preferred thermal conductivity is 0.15-0.8W / (m*K); the thermal conductivity of the base 32 is 0.1-15W / (m*K), the tolerance temperature is preferably 250-350°C, and the preferred thermal conductivity is 0.2-1W / (m*K). As a result, the elastic separation layer 31, which is in direct contact with the high-temperature space, has a lower thermal conductivity, which effectively slows down the transfer speed of heat from the heating element 2 to the base 32, reduces heat loss, and improves heating efficiency. The thermal conductivity of the base 32 is set to the above range, so that the base 32 can further effectively block the transfer of heat to the power supply component while maintaining sufficient mechanical strength, protect the power supply component from overheating damage, and extend the service life. Specifically, for example, the elastic partition layer 31 is made of foamed engineering plastics, silicone, etc. These materials have good elasticity and thermal stability, ensuring that the elastic partition layer 31 can still maintain effective sealing and thermal insulation performance when subjected to thermal stress and mechanical stress, while providing appropriate thermal conductivity to optimize heat transfer and control. The base 32 is made of PEEK (polyetheretherketone), metal, ceramic or glass, etc., preferably PEEK, which can maintain stability in high temperature and corrosive environments, further enhancing the durability and safety of the base 32.

[0071] In addition, the hard support member (7, 7'), the elastic member (6, 6') and the heating member mounting seat 3 are provided to jointly realize the installation of the heating member 2, and are also conducive to the rapid disassembly and re-fixation installation of the heating member 2, so that the heating member 2 can be reused without customization.

[0072] In some other possible embodiments provided by the present invention, refer to Figure 3 and Figure 4 As shown, the elastic member (6, 6') includes a second hollow portion (61, 61').

[0073] Specifically, in this embodiment, combined with Figure 4 and Figure 5 As shown, the elastic member 6' is axially located between the first support member 7' and the mounting portion 22, and at least a portion of the first hollow portion 71' is inserted into the second hollow portion 61', so that the end of the first hollow portion 71' abuts against the mounting portion 22 through the elastic member 6'. Thus, the end of the first hollow portion 71' abuts against the mounting portion 22 through the elastic member 6', that is, the first support member 7' abuts against the mounting portion 22 through the elastic member 6', which is conducive to achieving a better support effect and avoiding the strong elasticity of the elastic member 6', which causes the heating element 2 to shake.

[0074] In another embodiment of the present invention, Figure 2 and Figure 3 As shown, the first support member 7 is axially arranged between the mounting portion 22 and the elastic member 6, and at least a portion of the second hollow portion 61 is inserted into the first hollow portion 71 so that the end of the second hollow portion 61 abuts against the mounting portion 22. Thus, it not only has a better shock absorption effect. Also, since the material of the first support member 7 is preferably PEEK material, which has a lower heat absorption performance than the elastic member 6, and the first support member 7 is located between the mounting portion 22 and the elastic member 6, it means that during the heating process, the heat loss from the high-temperature space to the first support member 7 can be effectively reduced, thereby further reducing the heat loss of the high-temperature space. Among them, the end of the second hollow portion 61 is preferably a closed end to avoid fluid accumulation in the second hollow portion 61; more preferably, the end face of the closed end of the second hollow portion 61 is flush with the end face of the first support member 7 close to the mounting portion 22.

[0075] In some other possible embodiments provided by the present invention, combined with Figure 2 and Figure 3 As shown, when the first support member 7 is axially located between the mounting portion 22 and the elastic member 6, the elastic member 6 includes a base portion 62, the second hollow portion 61 is disposed on the base portion 62, and the first support member 7 abuts against the mounting portion 22 through the base portion 62. That is, the base portion 62 can press the first support member 7 so that the first support member 7 abuts against the mounting portion 22.

[0076] Furthermore, a second support member 5 is included, and the second support member 5 squeezes the elastic member 6 to press the first support member 7 against the mounting portion 22. That is, the first support member 7 can be fixed to the mounting portion 22 directly, or can be fixed to the mounting portion 22 through the second support member 5. For example, the second support member 5 is fixedly connected to the base 32 and the heating member 2 is fixedly connected to the base 32, so that the heating member 2 and the mounting seat bottom plate 5 jointly squeeze the elastic member 6, that is, the first support member 7 is pressed against the mounting portion 22 by the joint extrusion of the heating member 2 and the second support member 5, thereby limiting the movement of the mounting portion 22 toward the second support member 5. In this way, the fixed installation of the heating member 2 is further achieved, and displacement caused by vibration or external force during the heating process is prevented, thereby ensuring the uniformity and stability of the heating of the aerosol generating product.

[0077] In the above embodiments, the electrode lead 40 of the heating element 2 passes through the elastic member (6, 6') and is held by the elastic member (6, 6'). The fixing effect of the elastic member (6, 6') on the electrode lead 40 can reduce the noise generated by the vibration of the electrode lead 40 during the operation of the smoking device. Figure 3 The electrode lead 40 shown, that is, the electrode lead 40 passes through the elastic member (6, 6') and the first hollow portion (71, 71'), thereby being electrically connected to the power supply assembly. Preferably, the elastic member (6, 6') is provided with a threading cavity extending in the axial direction, the threading cavity and the electrode lead 40 are interference fit, and the electrode lead 40 passes through the threading cavity and the first hollow portion (71, 71'), thereby being electrically connected to the power supply assembly.

[0078] In some other possible embodiments provided by the present invention, there is a gap between the side wall of the accommodating chamber 1 and the aerosol generating product, and the aerosol generating device 0 takes in air through the gap. That is, the gap is an air intake channel, and the gap is located in the high-temperature space, so that the gas flow only exists in the high-temperature space, further reducing the heat loss caused by the air flow.

[0079] In some other possible embodiments provided by the present invention, refer to Figure 1 and Figure 4 As shown, the aerosol generating device 0 further includes a surrounding member 8, which is axially abutted against the heating member mounting seat 3, and the surrounding member 8 includes a hollow cavity 81, and the hollow cavity 81 is used to accommodate the accommodating cavity 1. A second through hole 811 is provided at the bottom of the hollow cavity 81, and the second through hole 811 and the through hole 11 are axially abutted, and the heating member 2 is inserted into the accommodating cavity 1 through the second through hole 811 and the through hole 11, respectively. The end of the second through hole 811 abuts against the elastic partition layer 31 to prevent the fluid from flowing out of the hollow cavity 81 through the gap between the end of the second through hole 811 and the elastic partition layer 31.

[0080] Due to the elastic properties of the elastic partition layer 31, when the end of the second through hole 811 abuts against the elastic partition layer 31, the elastic partition layer 31 is squeezed by the end of the second through hole 811 and deforms, so that there is a better sealing effect between the elastic partition layer 31 and the hollow cavity 81, thereby preventing the fluid from flowing out of the hollow cavity 81 through the gap between the end of the second through hole 811 and the elastic partition layer 31. As a result, the high-temperature space is relatively isolated, and the flow path of the gas and liquid in the high-temperature space is further limited, avoiding the heat loss caused by the air flow, so that the heat is retained in the high-temperature space as much as possible to be absorbed by the tobacco material, which is conducive to further improving the heating efficiency and reducing the heat loss.

[0081] Furthermore, the aerosol generating device 0 also includes a first shell, which is sleeved on the outside of the enclosure 8 and connected to the accommodating chamber 1, and is used to drive the accommodating chamber 1 to separate from the enclosure 8 along the axial direction. Therefore, by changing the position of the first shell relative to the enclosure 8, the accommodating chamber 1 is separated from the enclosure 8 along the axial direction, which is convenient for users to replace aerosol generating products and easily clean up residues, which not only improves the cleaning efficiency, cleaning effect and user experience of the smoking utensils, but also reduces the difficulty of maintenance and prolongs the service life of the smoking utensils. In addition, after each use, since the smoking utensils can be cleaned, it is also conducive to improving the user's purer smoking experience.

[0082] Combination Figure 1 and Figure 7 As shown, the first shell is composed of an upper shell 01 and an inner shell 011. The upper shell 01 is sleeved on the outside of the inner shell 011, and the inner shell 011 is sleeved on the outside of the enclosure 8. Therefore, it can also achieve thermal insulation functions while reducing heat loss.

[0083] In some other possible embodiments provided by the present invention, the first shell is connected to the enclosure 8 by magnetic attraction. Specifically, the upper shell 01 is a hollow structure along the axial direction, and the inner shell 011 has a first surface along the axial direction. The aerosol generating device also includes a top cover 03, and the top cover 03 is fixedly connected to the upper shell 01 and the first surface along the axial direction, respectively. The first surface is also provided with an opening, and the accommodating chamber 1 is inserted from the opening and engaged with the opening. Two first foams 0111 and two first magnets 0112 are sequentially arranged along the axial direction between the top cover 03 and the first surface, and the two first foams 0111 are arranged along the first direction (for example Figure 1The first shell and the enclosure 8 are arranged relative to each other in the z direction shown in the figure, and the two first magnets 0112 are arranged relative to each other along the first direction, and the first direction is parallel to the radial direction of the aerosol generating product. Two magnet brackets 82 are arranged in the enclosure 8, and each magnet bracket 82 is provided with a second magnet 83 and a second foam 84 distributed in sequence along the axial direction, and the two first magnets 0112 and the two second magnets 83 are arranged relative to each other along the axial direction. At this time, when the two first magnets 0112 and the two second magnets 83 are docked along the axial direction, the first shell and the enclosure 8 are connected. At the same time, the first magnet 0112 and the second magnet 83 are not exposed to the outside of the first shell and the enclosure 8, so that the user does not need to consider that when changing cigarettes or cleaning smoking utensils, it will affect the first magnet 0112 and the second magnet 83, which is also conducive to improving the stability of the use of magnetic connection. As a result, the user can easily disassemble the first shell and the enclosure 8 to better achieve the replacement of cigarettes and the cleaning of smoking utensils.

[0084] In some other possible embodiments provided by the present invention, combined with Figure 1 , Figure 6 and Figure 7 As shown, the hollow cavity 81 is provided with ventilation holes 812 along the radial direction of the aerosol generating product, and the aerosol generating device 0 also includes a second shell 02, which can be axially connected with the first shell, and an air inlet 012 is axially provided between the first shell and the second shell 02, and the air inlet 012, the ventilation holes 812 and the through hole 11 are connected, and the external air enters into the accommodating cavity 1 through the air inlet 012, the ventilation holes 812 and the through hole 11.

[0085] As a result, there is a sufficient supply of oxygen inside the containing chamber 1, thereby improving the atomization efficiency of the aerosol; secondly, through the setting of the ventilation hole 812, the air pressure balance between the inside and outside of the containing chamber 1 is achieved, avoiding the problem of unstable aerosol generation or leakage due to pressure difference; in addition, the design of the air inlet 012 also allows the user to adjust the air flow entering the containing chamber 1 as needed, further controlling the aerosol generation process and improving the consistency of aerosol generation.

[0086] Furthermore, the enclosure 8 and the second shell 02 are fixedly connected in the axial direction, and a silicone ring 85 is provided between the enclosure 8 and the second shell 02 in the axial direction. The power supply assembly is arranged in the second shell 02. Thus, the sealing of the connection between the enclosure 8 and the second shell 02 is ensured, and the fluid can be prevented from entering the power supply assembly from between the enclosure 8 and the second shell 02, further effectively preventing the fluid from flowing into the power supply assembly, thereby more effectively solving the problem of contamination and corrosion of the power supply assembly affected by the fluid.

[0087] In some other possible embodiments provided by the present invention, continue to refer to Figure 7As shown, the aerosol generating device 0 further includes a bracket 021, a bracket end piece 04 and a decorative piece 05. The bracket 021 is used to install the battery 4 and the circuit board 41. The decorative piece 05 is axially arranged at the bottom of the second shell 02. The bracket end piece 04 is axially located between the bottom of the second shell 02 and the decorative piece 05. The decorative piece 05 and the bracket end piece 04 are fixedly connected by the clamping fit between the bracket end piece 04 and the bottom of the second shell 02, so that the battery 4 and the circuit board 41 are fixed to the bracket 021.

[0088] Furthermore, the aerosol generating device 0 further includes an inner button 43, a button light 44 and a button 42. The inner button 43 is located between the second shell 02 and the circuit board 41 along the radial direction of the aerosol generating product. The button 42 is provided on the second shell 02. The button light 44 is located between the inner button 43 and the button 42 along the radial direction of the aerosol generating product. The inner button 43 and the button light 44 are electrically connected to the circuit board 41, respectively. Specifically, when the user applies an external force to the button 44, the external force is transmitted to the inner button 43 through the button light 44, and then the circuit board 41 receives the information and feeds it back to the user through the button light 44. In other words, the button light 44 acts as an intermediary to transmit the external force applied by the user to the button 42 to the inner button 43, so that the force sense during the user's operation can be transmitted to the inner button 43 through the button light 44. After receiving the force, the inner button 43 triggers the corresponding circuit on the circuit board 41, thereby realizing the reception and processing of information. At the same time, the button light 44 can also provide instant feedback to the user, for example, by lighting up, flashing or changing color, etc., to inform the user that the operation has been recognized and executed, thereby improving the user's operational convenience and experience.

[0089] Second, as Figure 1-7 As shown, the present invention discloses an aerosol generating device 0, comprising a heating element 2, a containing chamber 1, a heating element mounting seat 3, a first supporting element (7, 7') and an elastic element (6, 6').

[0090] The heating element 2 is used to heat the aerosol generating product to generate aerosol, and includes a heating portion 21 and a mounting portion 22 . The mounting portion 22 is arranged radially outside the heating portion 21 .

[0091] The accommodating chamber 1 is used to accommodate the aerosol generating product. A through hole 11 is provided at the bottom of the accommodating chamber 1. The heating element 2 is inserted into the accommodating chamber 1 through the through hole 11 for heating.

[0092] The heating element mounting seat 3 is used to fix the heating element 2. The bottom surface of the heating element mounting seat 3 is provided with an inner groove 33, and the mounting part 22 is embedded in the inner groove 33. The inner wall of the inner groove 33 is provided with a limiting part, which is used to limit the movement of the mounting part 22 toward the accommodating cavity 1.

[0093] The first support member (7, 7') supports the mounting portion 22 to cooperate with the heating element mounting seat 3 to fix the mounting portion 22; the first support member (7, 7') includes a first hollow portion (71, 71'), and the axial projection of the insertion portion of the heating element 21 located in the mounting portion 22 is located within the cross-sectional range of the first hollow portion.

[0094] An elastic member (6, 6'), the elastic member (6, 6') is located between the first support member (7, 7') and the mounting portion 22 to close the opening of the first hollow portion (71, 71'); or the first support member (7, 7') is located between the elastic member (6, 6') and the mounting portion 22, and the elastic member (6, 6') fills the first hollow portion (71, 71') to prevent fluid from flowing into the first hollow portion (71, 71').

[0095] By adopting the above technical solution, the present invention realizes effective isolation of heat and fluid in the first area a through the mutual cooperation of the above technical features, which not only reduces the heat loss in the high-temperature space, so that more heat is applied to the heated aerosol generating product, but also reduces the possibility of the base 32 and the power supply assembly being contaminated and corroded, thereby improving the service life and reliability of the aerosol generating device 0. In addition, the present invention further effectively prevents the fluid from flowing into the power supply assembly through the double insurance of the elastic partition layer 31 and the elastic member (6, 6'), thereby more effectively solving the problem of contamination and corrosion of the power supply assembly affected by the fluid.

[0096] In the above-mentioned embodiments of the present invention, compared with the aerosol generating device without the elastic partition layer 31, under the same heating temperature curve, due to the partitioning effect of the elastic partition layer 31, the surface temperature of the aerosol generating product of the present invention increases by 2 to 3°C, the surface temperature of the aerosol generating device 0 decreases by 4 to 6°C, and the power consumption of a single aerosol generating product decreases by 2 to 4mah. Therefore, compared with the prior art, the present invention reduces the heat dissipation performance of the device parts through the mutual coordination of the above-mentioned settings, thereby reducing the heat dissipation loss, achieving higher energy utilization efficiency, and better protecting the internal electronic components.

[0097] Among them, it should be noted that the power consumption test method of a single aerosol generating product is: fully charge the aerosol generating device, use an ammeter to charge it to a trickle current of 0A, use the aerosol generating device normally until the low-power prompt is sounded, record the cumulative number of aerosol generating products that have been heated, and then fully charge the aerosol generating device again, use an ammeter to charge it to a trickle current of 0A, read the cumulative charge amount of the ammeter, divide it by the number of aerosol generating products, and obtain the power consumption of a single aerosol generating product.

[0098] Surface temperature test of aerosol generating products and aerosol generating devices: Use K-type thermocouples and wrap PI high-temperature tape around the middle of the length of the aerosol generating product for testing. And measure the temperature during the heating process. Use an infrared temperature measuring instrument to capture the temperature change of the highest point on the surface of the aerosol generating device during use.

[0099] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An aerosol generating device, characterized in that: include: A heating element for heating the aerosol generating article to generate an aerosol; A containing cavity, used to contain the aerosol generating product, wherein a through hole is provided at the bottom of the containing cavity, and the heating element is inserted into the containing cavity through the through hole for heating; Heating element mount, including: A base, used for fixing the heating element; an elastic separation layer, disposed on the top surface of the base, to separate the aerosol generating device into a first area and a second area along the axial direction, so that the fluids in the first area and the second area are not connected; Power supply components; The accommodating cavity is located in the first area, and the power supply component is located in the second area.

2. The aerosol generating device according to claim 1, characterized in that The heating element includes a heating part and a mounting part, wherein the mounting part is arranged on the radially outer side of the heating part, an inner groove is provided on the bottom surface of the heating element mounting seat, the mounting part is embedded in the inner groove, and a limiting part is provided on the inner wall of the inner groove, and the limiting part is used to limit the movement of the mounting part toward the accommodating cavity.

3. The aerosol generating device according to claim 2, characterized in that The side portion of the mounting portion includes a step-shaped structure, and the limiting portion cooperates with the step-shaped structure to limit the movement of the mounting portion toward the accommodating cavity.

4. The aerosol generating device according to claim 2, characterized in that The aerosol generating device also includes a hard first support member, which supports the mounting portion to cooperate with the heating element mounting seat to fix the mounting portion; the first support member includes a first hollow portion, and the projection of the insertion portion of the heating portion located in the mounting portion in the axial direction is located within the cross-sectional range of the first hollow portion.

5. The aerosol generating device according to claim 4, characterized in that The aerosol generating device further comprises: An elastic member, wherein the elastic member is located between the first support member and the mounting portion to close the opening of the first hollow portion; or the first support member is located between the elastic member and the mounting portion, and the elastic member fills the first hollow portion to prevent fluid from flowing into the first hollow portion.

6. The aerosol generating device according to claim 5, characterized in that The surface of the elastic member close to the mounting portion includes a sealing plane, and the elastic member abuts against the mounting portion to prevent the fluid from flowing into the second area.

7. The aerosol generating device according to claim 5 or 6, characterized in that: The elastic member includes a second hollow portion; when the elastic member is located between the first supporting member and the mounting portion, at least a portion of the first hollow portion is inserted into the second hollow portion so that an end portion of the first hollow portion abuts against the mounting portion through the elastic member; when the first supporting member is located between the elastic member and the mounting portion, at least a portion of the second hollow portion is inserted into the first hollow portion so that an end portion of the second hollow portion abuts against the mounting portion.

8. The aerosol generating device according to claim 7, characterized in that When the first supporting member is located between the elastic member and the mounting portion, the elastic member further includes a base portion, the second hollow portion is arranged on the base portion, and the first supporting member abuts against the mounting portion through the base portion.

9. The aerosol generating device according to claim 8, characterized in that The aerosol generating device further comprises a second supporting member, which presses the elastic member to press the first supporting member against the mounting portion.

10. The aerosol generating device according to claim 5, characterized in that The electrode lead wire of the heating element passes through the elastic member and is held by the elastic member.

11. The aerosol generating device according to claim 1, wherein: The aerosol generating device further comprises: A surrounding member is abutted against the heating member mounting seat along the axial direction, the surrounding member comprises a hollow cavity, the hollow cavity is used to accommodate the accommodating cavity, a second through hole is provided at the bottom of the hollow cavity, the second through hole and the through hole are butted against each other along the axial direction, and the heating member is inserted into the accommodating cavity through the second through hole and the through hole respectively; The end of the second through hole abuts against the elastic separation layer to prevent the fluid from flowing out of the hollow cavity through the gap between the end of the second through hole and the elastic separation layer.

12. The aerosol generating device according to claim 1, wherein: The thermal conductivity of the elastic separation layer is 0.1-5.5 W / (m*K), and the withstanding temperature is 250-350°C; and / or the thermal conductivity of the base is 0.1-15 W / (m*K), and the withstanding temperature is 250-350°C.

13. The aerosol generating device according to claim 1, wherein: The heating element mounting seat is manufactured by a secondary injection molding process.

14. An aerosol generating device, characterized in that: include: a heating element, which is used to heat the aerosol generating product to generate an aerosol, and comprises a heating portion and a mounting portion, wherein the mounting portion is arranged radially outside the heating portion; a containing cavity, which is used to contain the aerosol generating product, wherein a through hole is provided at the bottom of the containing cavity, and the heating element is inserted into the containing cavity through the through hole for heating; A heating element mounting seat, which is used to fix the heating element, wherein the bottom surface of the heating element mounting seat is provided with an inner groove, the mounting portion is embedded in the inner groove, and the inner wall of the inner groove is provided with a limiting portion, and the limiting portion is used to limit the mounting portion from moving toward the accommodating cavity; a first support member, which supports the mounting portion to cooperate with the heating element mounting seat to fix the mounting portion; the first support member comprises a first hollow portion, and an axial projection of an insertion portion of the heating element located in the mounting portion is located within a cross-sectional range of the first hollow portion; An elastic member, wherein the elastic member is located between the first support member and the mounting portion to close the opening of the first hollow portion; or the first support member is located between the elastic member and the mounting portion, and the elastic member fills the first hollow portion to prevent fluid from flowing into the first hollow portion.

Images