Injection molding part for aerosol generating device and aerosol generating device

Abstract

The invention discloses an injection molding part for an aerosol generating device, the injection molding part is formed by plastic raw materials containing heat insulation particles through an injection molding process, the plastic raw materials containing the heat insulation particles are formed by mixing the heat insulation particles in the production process of the plastic raw materials, and the heat conductivity coefficient of the heat insulation particles is 0.008-0.58 W / m.K. According to the injection molding part for the aerosol generating device, material modification is completed before injection molding, so that a conventional injection molding process does not need to be changed, and the injection molding part is easy to process. Besides, the heat insulation particles are added, and the heat conductivity coefficient of the heat insulation particles is 0.008-0.58 W / m.K, so that the heat conduction performance of the original conventional material can be reduced, the heat transfer speed is reduced, the heat loss is reduced, and the energy utilization efficiency is improved. The invention further discloses an aerosol generating device.

Description

Technical Field

[0001] The invention relates to the field of novel tobacco, and in particular to an injection molding component for an aerosol generating device and an aerosol generating device. Background Art

[0002] With the increasing concern about health, people are aware that traditional cigarettes are harmful to health. Therefore, a product called "heat-not-burn cigarette" has been produced. Heat-not-burn cigarettes heat the aerosol-generating matrix in the aerosol-generating product through a heating component to release aerosol so that users can get a smoking experience. The tobacco is not burned and no complex chemical reactions will occur.

[0003] Therefore, compared with traditional cigarettes, heat-not-burn cigarettes not only meet the physiological needs of users, but also reduce harmful substances such as tar and carbon monoxide brought by traditional cigarettes.

[0004] However, the highest operating temperature range of the heating element is relatively high, and the injection-molded components in the existing aerosol generating device will transfer part of the heat to the outer shell, thereby reducing the heating efficiency. Summary of the invention

[0005] In a first aspect, an embodiment of the present application provides an injection-molded component for an aerosol generating device, wherein the injection-molded component is formed from a plastic raw material containing thermal insulation particles through an injection molding process, wherein the plastic raw material containing thermal insulation particles is formed by mixing thermal insulation particles during the production of the plastic raw material, and the thermal conductivity of the thermal insulation particles is 0.008 to 0.58 W / mK.

[0006] In some embodiments, the thermal conductivity is 0.038-0.085 W / mK.

[0007] In some embodiments, the true density of the thermal insulation particles is 0.05 to 3.00 g / cm 3 , preferably 0.12 to 1.60 g / cm 3 .

[0008] In some embodiments, the bulk density of the thermal insulation particles is 0.05 to 2.50 g / cm3, preferably 0.10 to 0.62 g / cm3.

[0009] In some embodiments, the particle size of the thermal insulation particles is 0.2 to 450 um, preferably 2 to 130 um;

[0010] In some embodiments, the thermal insulation particles are hollow spherical, and / or the pressure of the internal cavity of the thermal insulation particles is less than or equal to the working environment pressure of the injection molded part.

[0011] In some embodiments, the thermal insulation particles are made of glass, ceramic or polymer material.

[0012] In some embodiments, the injection molded part has at least one or more of the following parameters:

[0013] The maximum compressive strength of the thermal insulation particles does not exceed 50,000 psi, preferably less than 30,000 psi;

[0014] The pH of the thermal insulation particles is 6.8 to 10.5, preferably 8 to 9.5;

[0015] The mixing mass ratio of the heat-insulating particles in the production process of the plastic raw materials does not exceed 55%, preferably 10-35%, or the mixing volume ratio does not exceed 60%, preferably 5-35%;

[0016] The insulation particles mixed during the plastic pelletizing process are of equal size;

[0017] The injection-molded component is a component that is in contact with or disposed in a gap with a heating element of the aerosol-generating device and / or an aerosol-generating article used in the aerosol-generating device.

[0018] In some embodiments, at least one or more of the following is satisfied:

[0019] The injection molded part is a receiving cavity for receiving the aerosol generating article;

[0020] The injection molded component is a heater mounting seat for mounting a heater of an aerosol generating device;

[0021] The injection molded component is a surrounding component, which is used to surround the accommodating cavity.

[0022] In a second aspect, an embodiment of the present application further provides an aerosol generating device, comprising:

[0023] a heating element for heating the aerosol generating article to generate an aerosol;

[0024] The accommodating chamber is used to accommodate the aerosol generating product. The bottom of the accommodating chamber is provided with a through hole, and the heating element is inserted into the accommodating chamber through the through hole for heating;

[0025] Heating element mount, including:

[0026] A base, used for fixing the heating element;

[0027] An elastic separation layer is provided on the top surface of the base, and separates 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;

[0028] The power supply assembly has a receiving cavity located in the first area and the power supply assembly is located in the second area.

[0029] Preferably, the base and / or the accommodating chamber includes an injection molded component as in any of the above-mentioned embodiments. The present application replaces the base of the accommodating chamber and / or the heater mounting seat with the injection molded component of the present application, which can reduce the thermal conductivity of the original conventional material, thereby effectively reducing the heat transfer rate, reducing heat loss, and improving energy utilization efficiency. In addition, while reducing heat loss in high-temperature spaces, it can also reduce 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.

[0030] 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 radial outside 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, which is used to limit the movement of the mounting part toward the accommodating cavity.

[0031] 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.

[0032] 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 radial projection of the insertion portion of the heating portion located in the mounting portion is located within the cross-sectional range of the first hollow portion.

[0033] According to another specific embodiment of the present invention, the aerosol generating device further comprises:

[0034] 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 the fluid from flowing into the first hollow portion.

[0035] 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.

[0036] 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 support 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 support 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.

[0037] 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 disposed on the base portion, and the first support member abuts against the mounting portion through the base portion.

[0038] 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.

[0039] 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.

[0040] According to another specific embodiment of the present invention, the aerosol generating device further comprises:

[0041] The surrounding member is axially abutted against the heating member mounting seat, the surrounding member includes 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 axially butted against each other, and the heating member is inserted into the accommodating cavity through the second through hole and the through hole respectively;

[0042] 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, or the surrounding piece includes an injection molded component as in any of the above embodiments.

[0043] 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 withstand temperature is 250-350°C; and / or the thermal conductivity of the base is 0.1-15 W / (m*K), and the withstand temperature is 250-350°C.

[0044] According to another specific embodiment of the present invention, the heater mounting seat is manufactured by a two-stage injection molding process.

[0045] In a third aspect, the present invention further discloses an aerosol generating device, comprising:

[0046] A heating element, which is used to heat the aerosol generating article to generate an aerosol, and includes a heating portion and a mounting portion, wherein the mounting portion is disposed radially outside the heating portion;

[0047] 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 a heating element is inserted into the containing cavity through the through hole for heating;

[0048] A heating element mounting seat, which is used to fix the heating element, 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, which is used to limit the movement of the mounting part toward the accommodating cavity;

[0049] A first support member 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 axial projection of the insertion portion of the heating element located in the mounting portion is located within the cross-sectional range of the first hollow portion;

[0050] an elastic member, 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 the fluid from flowing into the first hollow portion;

[0051] Wherein, one or more of the accommodating cavity, the heating element mounting seat and the first supporting element comprises an injection molded component as in any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A partial cross-sectional view of an aerosol generating device according to some embodiments of the present invention Figure 1 ;

[0053] Figure 2 A partial cross-sectional view of an aerosol generating device according to some embodiments of the present invention Figure 2 ;

[0054] Figure 3 A partially exploded schematic diagram showing an aerosol generating device according to some embodiments of the present invention;

[0055] Figure 4 Partial cross-sectional schematic diagrams showing other embodiments of aerosol generating devices of the present invention;

[0056] Figure 5 A partial exploded schematic diagram showing some other embodiments of aerosol generating devices of the present invention;

[0057] Figure 6 Show Figure 4 A top view schematic diagram of

[0058] Figure 7 Schematic diagram of an explosion of an aerosol generating device according to some embodiments of the present invention;

[0059] Figure 8 A partial exploded schematic diagram showing aerosol generating devices according to some other embodiments of the present invention;

[0060] Fig. 9 Partial cross-sectional schematic diagrams showing aerosol generating devices according to some further embodiments of the present invention. DETAILED DESCRIPTION

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] The present application provides an injection molded component for an aerosol generating device, wherein the injection molded component is formed by an injection molding process from a plastic raw material containing thermal insulation particles. The plastic raw material containing thermal insulation particles is formed by mixing thermal insulation particles during the production process of the plastic raw material. The thermal conductivity of the thermal insulation particles is 0.008 to 0.58 W / mK.

[0066] It should be noted that the plastic raw materials can be in the form of powder, granules, filaments or sheets, and may include impurities other than plastic; different forms of plastic parts can be made of different forms of plastic raw materials through different processes such as injection molding, blister molding, slush molding, hot melt, powder sintering and 3D printing. This application does not specifically limit the shape of the thermal insulation particles, which can be spherical or other geometric shapes, as long as the thermal conductivity of the thermal insulation particles can be 0.008 to 0.58 W / mK. The aerosol generating device can be an internal heating type or an external heating type, which is not specifically limited here.

[0067] The injection molded parts for aerosol generating devices provided by the present application are not mixed with thermal insulation particles during the injection molding process, but are mixed with thermal insulation particles during the production process of plastic raw materials. Specifically, thermal insulation particles can be mixed in molten liquid plastic, and then through steps such as extrusion, wire drawing, and then cutting into particles to form a plastic raw material containing thermal insulation particles, and then the plastic raw material containing thermal insulation particles is injection molded to form. Since the material modification is completed before injection molding, there is no need to change the conventional injection molding process, and it is easy to process. In addition, since the injection molded parts for aerosol generating devices of the present application are added with thermal insulation particles, and the thermal conductivity of the thermal insulation particles is 0.008~0.58W / mK, the thermal conductivity of the original conventional materials can be reduced, thereby reducing the heat transfer rate, reducing heat loss, and improving energy utilization efficiency.

[0068] Preferably, the thermal conductivity of the heat-insulating particles is 0.038 to 0.085 W / mK, which can effectively reduce the undesired heat loss of the aerosol generating device and improve the heating efficiency while controlling the cost.

[0069] In some embodiments, the true density of the thermal insulation particles is 0.05 to 3.00 g / cm3, preferably 0.12 to 1.60 g / cm3. If the true density is too low, the manufacturing difficulty will increase; if the true density is too high, the weight of the injection molded part will be too high, the overall quality of the aerosol generating device will increase, and the user experience will be poor.

[0070] In some embodiments, the bulk density of the thermal insulation particles is 0.05 to 2.50 g / cm3, preferably 0.10 to 0.62 g / cm3.

[0071] In some embodiments, the particle size of the thermal insulation particles is 0.2 to 450 um, preferably 2 to 130 um. If the particle size is too small, it will increase the difficulty of processing; if the particle size is too large, it may affect the strength of the injection molded parts. The present application limits the particle size of the thermal insulation particles to the above range, which can ensure that the thermal insulation particles are evenly distributed in the molded injection molded parts, thereby not affecting the density distribution of the injection molded parts. In other words, the injection molded parts will not have a relatively small density due to the distribution of more thermal insulation particles in some areas, and a relatively large density due to the distribution of fewer thermal insulation particles in some areas, thereby affecting the force distribution of the injection molded parts in the event of falling, impact, etc.

[0072] In some embodiments, the maximum compressive strength of the thermal insulation particles does not exceed 50,000 psi, and is preferably less than 30,000 psi.

[0073] In some embodiments, the pH of the heat insulating particles is 6.8 to 10.5, preferably 8 to 9.5. If the pH value is too low and the acidity is strong, the mold needs to have higher acid resistance. Since aerosol generating products are usually weakly alkaline, and injection molded parts are used in aerosol generating devices, it is better to control the heat insulating particles to be weakly alkaline to avoid unnecessary acid-base effects.

[0074] In some embodiments, the mixing mass ratio of the heat insulating particles in the production process of the plastic raw materials does not exceed 55%, preferably 10-35%, and / or the mixing volume ratio of the heat insulating particles in the production process of the plastic raw materials does not exceed 60%, preferably 5-35%. If the mixing ratio of the heat insulating particles is too small, the heat insulating effect may be affected; if the mixing ratio of the heat insulating particles is too large, the strength of the injection molded part may be affected.

[0075] In some embodiments, the insulating particles mixed during the plastic granulation process are of equal size so that the injection-molded parts have insulating particles of uniform size. Therefore, the injection-molded parts will not have stress concentration problems, and the injection-molded parts will not be damaged due to uneven force when dropped or impacted.

[0076] In this embodiment, the heat insulating particles are hollow spherical and have a certain wall thickness. Due to the spherical structure, they can be more evenly mixed with liquid plastic during the production process of the plastic raw material. After the plastic raw material containing the heat insulating particles is injection molded, the heat insulating particles can be evenly distributed in the injection molded part without affecting the density distribution of the part.

[0077] In some embodiments, the pressure of the internal cavity of the thermal insulation particles is less than or equal to the working environment pressure of the injection molded part. The working environment pressure can be greater than or less than the standard atmospheric pressure. In other words, the interior of the thermal insulation particles can be a vacuum or a low-density medium, thereby achieving a better thermal insulation effect.

[0078] In some embodiments, the heat insulating particles are made of glass, ceramic or polymer materials. In view of the stable chemical properties of glass, low cost, simple process, suitability for industrial production, high melting point and difficulty in being melted during the production of plastic raw materials, the heat insulating particles are preferably glass.

[0079] In some embodiments, the injection molded component is a component that is in contact with or has a gap with the heating element of the aerosol generating device and / or the aerosol generating article used for the aerosol generating device. It should be noted that "contact" can be direct or indirect contact; "gap setting" can be understood as a gap structure that can have an impact in the heat transfer process. In the heat transfer process, due to the presence of a large number of heat-insulating particles in the mixed plastic, the thermal conductivity is reduced, thereby effectively reducing the undesirable heat loss and improving the heating efficiency.

[0080] The following references Figure 1-9 The application scenarios of the injection-molded components of the present application in the aerosol generating device are specifically introduced.

[0081] like Figures 1 to 6 As shown, the aerosol generating device 0 includes 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 (not shown in the figure) to generate an aerosol. The aerosol generating product can be a smoking product in the shape of a cigarette, including but not limited to tobacco flakes, tobacco particles, tobacco shreds, reconstituted tobacco and other tobacco products that can be heated by the aerosol generating device 0 to generate an aerosol for the user to inhale.

[0082] The accommodating chamber 1 is used to accommodate the aerosol generating product, and a through hole 11 is provided at the bottom of the accommodating chamber 1. The heating element 2 can be inserted into the accommodating chamber 1 through the through hole 11 to heat the aerosol generating product in the accommodating chamber 1. It should be noted that the aerosol generating device can be as follows Figure 1 The internal heating type shown, that is, the heating element 2 is located inside the aerosol generating product; the aerosol generating device can also be an external heating type, that is, the heating element 2 is located outside the aerosol generating product, which is not specifically limited here. When the heating element is in the working state, a high-temperature space will be formed in the accommodating cavity 1.

[0083] The heating element mounting base 3 includes a base 32 for fixing the heating element 2 to constrain the degree of freedom of the heating element 2. The power supply assembly includes a battery 4 and a circuit board 41. The battery 4 is used to provide power to the aerosol generating device 0, and the circuit board 41 is provided with a temperature control circuit and a battery management system (BMS), including but not limited to being used for accurately controlling the temperature of the heating element 2 and monitoring the charge and discharge status of the battery 4.

[0084] In some embodiments, reference Figure 1 and Figure 4 As shown, the aerosol generating device 0 may further include a surrounding member 8, which is arranged in an axial direction (eg Figure 1 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. The second through hole 811 and the through hole 11 are arranged in the axial direction (as shown in the x direction) and the heating element mounting seat 3. Figure 1 The heating element 2 is inserted into the accommodating cavity 1 through the second through hole 811 and the through hole 11 respectively.

[0085] Since the accommodating cavity 1, the base 32 of the heating element mounting seat 3 and the surrounding member 8 are in contact with the heating element 2 and / or the aerosol generating product or are arranged in a gap, the temperature is relatively high. Therefore, replacing one or more of the accommodating cavity 1, the base 32 of the heating element mounting seat 3 and the surrounding member 8 with the injection molded parts of this application can reduce the thermal conductivity of the original conventional material, thereby effectively reducing the heat transfer rate, reducing heat loss, and improving energy utilization efficiency.

[0086] In some embodiments, the heating element mounting base 3 further includes an elastic separation layer 31, which is disposed on the base 32 along the axial direction (eg Figure 1 In other words, the elastic separation layer 31 and the base 32 are arranged in a close relationship, and the elastic separation layer 31 is arranged along the axial direction (for example, the x direction shown in the figure) on the end surface of the side close to the accommodating cavity 1. Figure 1 The elastic partition layer 31 is located between the accommodating chamber 1 and the base 32. The elastic partition layer 31 is located between the accommodating chamber 1 and the base 32. Figure 1 The receiving chamber 1 is located in the first area a, that is, the high temperature space is located in the first area a; and the power supply component is located in the second area b.

[0087] After such arrangement, the fluid between the first area a and the second area b can be disconnected. The fluid may specifically include gas, liquid and gas-liquid mixture. In other words, during the aerosol generation process, the gas and / or liquid generated in the first area a cannot enter 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. In addition, the setting of the elastic partition layer 31 not only plays a blocking role physically, 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 in the high-temperature space, and more heat can be applied to the heating of the aerosol generating product, while avoiding the base 32 directly conducting heat to the power supply assembly, thereby protecting the power supply assembly from the influence of high temperature. 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.

[0088] In some embodiments, the heater mounting base 3 is manufactured by a secondary injection molding process. That is, the elastic partition layer 31 and the base 32 are integrally formed, specifically, by a secondary injection molding process, thereby ensuring the tightness of the connection between the elastic partition layer 31 and the base 32, further reducing the possibility of the base 32 being contaminated and corroded.

[0089] In some embodiments, the end of the second through hole 811 of the hollow cavity 81 abuts against the elastic separation 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 separation layer 31, thereby causing undesirable effects on power supply components, etc.

[0090] 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.

[0091] In some embodiments, reference Figure 1 The heating element 2 includes a heating portion 21 and a mounting portion 22. The mounting portion 22 is disposed along the radial direction (eg Figure 1 Specifically, the mounting portion 22 is provided with an insertion hole (not shown in the figure), and the heating portion 21 is fixedly connected to the mounting portion 22 through the insertion hole. The heating portion 21 is used to directly heat the aerosol generating product by actively generating heat. In order to concentrate heat and increase safety, the thermal conductivity of the mounting portion 22 does not exceed the thermal conductivity of the heating portion 21, and is preferably a material with lower thermal conductivity.

[0092] In some embodiments, the bottom surface of the heating element mounting seat 3 is provided with an inner groove 33, and the mounting portion 22 is embedded in the inner groove 33. Exemplarily, the inner wall of the inner groove 33 is provided with a limiting portion (not shown in the figure), and the limiting portion is used to limit the movement of the mounting portion 22 toward the accommodating cavity 1. By limiting the mounting portion 22 at the limiting portion, the mounting portion 22 is not exposed to the high-temperature space, the contact area between the mounting portion 22 and the high-temperature space is reduced, and the heat loss caused by the conduction of the mounting portion 22 is reduced; it is also conducive to achieving a stable installation of the heating element 2, and it is convenient to replace the heating element 2; in addition, the interlocking structure of the inner groove 33 and the mounting portion 22 cooperates with the role of the limiting portion to form a compact installation method, thereby saving installation space.

[0093] In some embodiments, in combination Figure 3 As shown, the side of the mounting portion 22 includes a step-like structure, and the limiting portion of the heating element mounting seat 3 cooperates with the step-like structure of the mounting portion 22 to limit the movement of the mounting portion 22 toward the accommodating chamber 1. The contact area between the mounting portion 22 and the limiting portion of the heating element mounting seat 3 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 by a snap-on method, which simplifies the installation process and does not require the use of additional fixings such as screws or adhesives, which not only reduces the manufacturing cost, but also reduces the installation time, and facilitates the rapid disassembly and reinstallation of the heating element 2. In addition, the step-like structure design of the mounting portion 22 has a certain guiding effect, so that the mounting portion 22 can be accurately aligned when embedded in the inner groove 33 of the heating element mounting seat 3, reducing the installation error and improving the assembly accuracy of the overall aerosol generating device 0.

[0094] In some embodiments, in combination Figure 1-5 As shown, the aerosol generating device 0 further includes a first support member (7, 7') for supporting the mounting portion 22 of the heating needle 2, which cooperates with the heating element mounting seat 3 to fix the mounting portion 22. Specifically, the first support member (7, 7') is axially (e.g. Figure 1 The first support member (7, 7') is disposed below the mounting portion 22 and can cooperate with the inner groove 33 of the heating element mounting seat 3 and the limiting portion disposed on the inner groove 33 to achieve fixed installation of the heating element 2. Preferably, the first support member (7, 7') is a hard support member to better provide support force to the mounting portion 22 and limit the movement of the mounting portion 22 toward the second support member 5.

[0095] 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.

[0096] The inventors also considered that once the power supply assembly is contaminated or corroded by the fluid, the consequences will be serious, for example, it may easily cause the aerosol generating device 0 to malfunction or even catch fire, and other dangerous accidents. The elastic partition layer 31 axially separates the aerosol generating device 0 into a first area a and a 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 very likely that the fluid flows in through the space between the heater mounting seat 3 and the mounting portion 22 of the heater 2, and then reaches the bottom of the mounting portion 22. In order to solve the above problems, the aerosol generating device 0 also includes an elastic member (6, 6') axially arranged below the mounting portion 22, thereby playing a sealing role to prevent the fluid from flowing into the power supply assembly. Specifically, as 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 the fluid from flowing into the first hollow portion (71, 71'). The material of the elastic member (6, 6') can be, for example, silicone. Thus, 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.

[0097] The installation of the heating element 2 is achieved by arranging a hard support member (7, 7'), an elastic member silicone pad (6, 6') and a heating element mounting seat 3, which is also conducive to the rapid disassembly and re-fixation of the heating element 2, so that the heating element 2 can be reused without customization.

[0098] 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.

[0099] In some embodiments, reference Figure 2 and Figure 3, 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. The existence of the first support member 7 also provides additional support for the elastic member 6, enhances the structural strength of the entire device, and avoids the shaking of the mounting portion 22 due to the elasticity; it also makes the elastic member 6 less likely to deform when bearing the weight and thermal expansion of the heating element, further improving the fixing effect of the heating element 2 and the reliability of the device. In addition, by providing the first hollow portion 71, the material area of ​​the first support member 7 is reduced, further reducing heat conduction. Exemplarily, the first support member 7 is in the shape of a terrace, which is adapted to the inner groove 33 of the heating element mounting seat 3, thereby achieving the support and fixing effect on the heating element 2. Further, the first hollow portion 71 of the first support member 7 can be used for the electrode lead 40 of the heating element 2 to pass through to be electrically connected to the battery assembly.

[0100] Preferably, the first support member 7 is made of PEEK material, which has good high temperature resistance and lower heat absorption performance than the elastic member 6. The first support member 7 is located between the mounting portion 22 and the elastic member 6, which 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 helping to increase the proportion of heat obtained by the aerosol generating product.

[0101] The elastic member 6 includes a second hollow portion 61, at least a portion of which is inserted into the first hollow portion 71, so that the end of the second hollow portion 61 abuts against the mounting portion 22, thereby achieving a better shock absorption effect. Preferably, the end of the second hollow portion 61 is a closed end to prevent fluid from accumulating in the second hollow portion 61; more preferably, the end surface of the closed end of the second hollow portion 61 is flush with the end surface of the first support member 7 close to the mounting portion 22.

[0102] The elastic member 6 further 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 via 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.

[0103] Further, the aerosol generating device 0 further includes a second support member 5, which presses 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 6. 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 bottom plate of the mounting seat jointly press 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. Thus, 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.

[0104] Furthermore, the second support member 5 applies a force to the base portion 62 of the elastic member 6 , and then the base portion 62 applies a force to the first support member 7 , so that the first support member 7 abuts against the mounting portion 22 of the heating member 2 .

[0105] Different from the above Figure 2 and Figure 3 In some other embodiments, refer to Figure 4 and Figure 5 , the elastic member 6' is located between the first support member 7' and the mounting portion 22 of the heating member 2 to close the opening of the first hollow portion 71'. Specifically, the closing method is preferably covering. Thereby, while ensuring compatibility with processing errors, the fluid can be prevented from flowing into the first hollow portion 71'. Further, the elastic member 6' is stepped, which is adapted to the inner groove 33 of the heating member mounting seat 3, thereby achieving support and fixing of the heating member 2. In addition, by providing the first hollow portion 71', the material area of ​​the first support member 7 is reduced, thereby further reducing heat conduction. Further, the second support member 5 can press the elastic member 6' against the mounting portion 22 through the first support member 7'.

[0106] 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.

[0107] In some embodiments, Figure 4As shown, the elastic member 6' includes a second hollow portion 61'. Exemplarily, 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'. In other words, the first support member 7' abuts against the mounting portion 22 through the elastic member 6', which is conducive to achieving a better supporting effect and preventing the heating member 2 from shaking due to the strong elasticity of the elastic member 6'.

[0108] Since the first support member (7, 7') and the second support member 5 are in contact with or spaced apart from the heating member 2 and / or the aerosol generating product, and the temperature is relatively high, replacing the first support member (7, 7') and / or the second support member 5 with the injection molded component of the present application can further reduce the thermal conductivity of the original conventional material, thereby effectively reducing the heat transfer rate, reducing heat loss, and improving energy utilization efficiency.

[0109] In some embodiments, the thermal conductivity of the elastic separation layer 31 is 0.1 to 5.5 W / (m*K), and the tolerable temperature is preferably 250 to 350°C, and the preferred thermal conductivity is 0.15 to 0.8 W / (m*K); the thermal conductivity of the base 32 is 0.1 to 15 W / (m*K), and the tolerable temperature is preferably 250 to 350°C, and the preferred thermal conductivity is 0.2 to 1 W / (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; at the same time, the setting of the thermal conductivity of the base 32 enables the base 32 to maintain sufficient mechanical strength while further effectively blocking heat transfer to the power supply component, protecting the power supply component from overheating damage and extending the service life. The material of the elastic separation layer 31 can be foamed engineering plastic or silicone, etc., which can have good elasticity and thermal stability, ensure that the elastic separation layer 31 can still maintain effective sealing and thermal insulation performance when subjected to thermal stress and mechanical stress, and provide appropriate thermal conductivity to optimize heat transfer and control.

[0110] In the above embodiments, the electrode lead 40 of the heating element 2 passes through the elastic member (6, 6') to be electrically connected to the power supply assembly and is held by the elastic member (6, 6'). The buffering characteristics of the elastic member (6, 6') 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 the device is operated; for example Figure 3The electrode lead 40 shown 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 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. In addition, the thermal insulation performance of the elastic member (6, 6') itself further reduces the heat loss in the axial direction.

[0111] In some embodiments, there is a gap between the side wall of the accommodating chamber 1 and the aerosol generating article, 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.

[0112] In some embodiments, the aerosol generating device 0 further includes a first shell, which is sleeved outside the enclosure 8 and connected to the accommodating chamber 1, and is used to drive the accommodating chamber 1 to move in an axial direction (for example, Figure 1 Thus, by changing the position of the first shell relative to the surrounding member 8, the accommodating chamber 1 containing the aerosol-generating product is moved in the axial direction (e.g., Figure 1 The aerosol generating device 0 is separated from the surrounding member 8 in the x direction shown in the figure, which is convenient for users to replace the aerosol generating product and clean the residue easily, which not only improves the cleaning efficiency, cleaning effect and user experience of the smoking device, but also reduces the maintenance difficulty and prolongs the service life of the aerosol generating device 0. Figure 1 and Figure 7 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.

[0113] In some implementations, the first shell is connected to the enclosure 8 by magnetic attraction. Figure 1 The x-direction shown in FIG. Figure 7 As shown, the aerosol generating device 0 further includes a top cover 03, which is fixedly connected to the upper shell 01 and the first surface in the axial direction. The first surface is also provided with an opening, and the accommodating cavity 1 is inserted from the opening and engaged with the opening. Two first foams 0111 and two first magnets 0112 are sequentially arranged in the axial direction between the top cover 03 and the first surface. The two first foams 0111 are arranged in the radial direction (e.g. Figure 1 The two first magnets 0112 are arranged opposite to each other in the radial direction.

[0114] 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 which are sequentially distributed along the axial direction, and the two first magnets 0112 and the two second magnets 83 are arranged opposite to each other along the axial direction. When the two first magnets 0112 and the two second magnets 83 are connected 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 the impact on the first magnet 0112 and the second magnet 83 when replacing the aerosol generating product or cleaning the aerosol generating device 0, which is also conducive to improving the stability of the magnetic connection; the user can easily disassemble the first shell and the enclosure 8 to better achieve the replacement of cigarettes and the cleaning of the smoking utensils.

[0115] In some embodiments, in combination Figure 1 , Figure 6 and Figure 7 As shown, the hollow cavity 81 is arranged along a first radial direction of the device (eg Figure 6 The aerosol generating device 0 further comprises a second shell 02, which can be connected to the first shell in the axial direction. An air inlet 012 is arranged between the first shell and the second shell 02 in the axial direction. The air inlet 012, the air vent 812 and the through hole 11 are connected. External air enters the interior of the accommodating chamber 1 through the air inlet 012, the air vent 812 and the through hole 11. Thus, there is sufficient oxygen supply inside the accommodating chamber 1, thereby improving the atomization efficiency of the aerosol; secondly, through the provision of the air vent 812, the air pressure balance between the interior and exterior of the accommodating chamber 1 is achieved, thereby avoiding the problem of unstable or leaking aerosol generation caused by pressure difference; in addition, the design of the air inlet 012 also allows the user to adjust the air flow entering the accommodating chamber 1 as needed, further controlling the aerosol generation process and improving the consistency of aerosol generation.

[0116] In some embodiments, 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.

[0117] In some embodiments, reference Figure 7The 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 mount the battery 4 and the circuit board 41, the decorative piece 05 is arranged at the bottom of the second shell 02 along the axial direction, and the bracket end piece 04 is located between the bottom of the second shell 02 and the decorative piece 05. Through the snap-fitting of the bracket end piece 04 and the bottom of the second shell 02, the decorative piece 05 is fixedly connected to the bracket end piece 04, so that the battery 4 and the circuit board 41 are fixed on the bracket 021.

[0118] In some embodiments, 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 housing 02 and the circuit board 41 along the second radial direction of the device, the button 42 is provided on the second housing 02, the button light 44 is located between the inner button 43 and the button 42 along the second radial direction, and the inner button 43 and the button light 44 are electrically connected to the circuit board 41 respectively. Exemplarily, when a user applies an external force to the button 42, 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. That is to say, 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 receiving and processing the information. At the same time, the button light 44 can also immediately feed back information to the user, for example, by lighting up, flashing or changing color, to inform the user that the operation has been recognized and executed. This helps to improve the user's operational convenience and experience. Further, the first radial direction and the second radial direction may be the same direction.

[0119] The present invention also discloses an aerosol generating device 0, comprising a heating element 2, a containing cavity 1, a heating element mounting seat 3, a first supporting element (7, 7') and an elastic element (6, 6').

[0120] 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 .

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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').

[0125] Since the accommodating chamber 1, the heating element mounting seat 3 and the first supporting member (7, 7') are in contact with or spaced apart from the heating element 2 and / or the aerosol generating product, and the temperature is relatively high, replacing one or more of the accommodating chamber 1, the heating element mounting seat 3 and the first supporting member (7, 7') with the injection molded components of this application can further reduce the thermal conductivity of the original conventional material, thereby effectively reducing the heat transfer rate, reducing heat loss, and improving energy utilization efficiency.

[0126] The present invention achieves 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.

[0127] 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 partition 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.

[0128] It should be noted that the power consumption test of a single aerosol generating product can be carried out in the following manner: 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. The surface temperature of the aerosol generating product and the surface temperature test of the aerosol generating device 0 can be carried out in the following manner: use a K-type thermocouple and wrap it around the middle of the length of the aerosol generating product with PI high-temperature tape to test the surface temperature of the aerosol generating product; use an infrared temperature measuring instrument to capture the changes in the highest temperature point on the surface of the aerosol generating device 0 during use to test the surface temperature of the aerosol generating device 0.

[0129] Different from the structures in the above-mentioned embodiments where the heating element mounting seat 3, the elastic member (6, 6'), the first support member (7, 7') and the second support member 5 are not provided with grooves, in some other embodiments, Figure 8 and Fig. 9 , along the axial direction (e.g. Figure 8 A heating element mounting seat 3", an elastic member 6", a first support member 7" and a second support member 5" are provided on the side of the heating element mounting seat 3" away from the mounting seat 22 of the heating element 2, for accommodating a sealing ring 302. A second groove is provided on the side of the second support member 5" close to the mounting seat 22 of the heating element 2, for accommodating the first support member 7". A third groove is provided on the side of the first support member 7" close to the mounting seat 22 of the heating element 2, for accommodating the elastic member 6". By fixing the heating element mounting seat 3" and the second support member 5", and fixing the heating element 2 and the heating element mounting seat 3", the elastic member 6" is in contact with the mounting seat 22 of the heating element 2, thereby playing a sealing role. The surrounding member 8 surrounds the outer periphery of the accommodating chamber 1, and the accommodating chamber 1 is used to accommodate an aerosol generating product (not shown in the figure).

[0130] Since the accommodating cavity 1, the heating element mounting seat 3", the first support member 7", the second support member 5" and the surrounding member 8 are in contact with or are arranged in a gap with the heating element 2 and / or the aerosol generating product, the temperature is relatively high. Therefore, replacing one or more of the accommodating cavity 1, the heating element mounting seat 3", the first support member 7", the second support member 5" and the surrounding member 8 with the injection molded parts of this application can reduce the thermal conductivity of the original conventional material, thereby effectively reducing the heat transfer rate, reducing heat loss, and improving energy utilization efficiency.

[0131] refer to Fig. 9, the surrounding part 8 adopts the injection molding component of the present application, and the hollow circles in the figure represent thermal insulation particles. When the mixing mass ratio of the thermal insulation particles is 30%, the true density ranges from 0.48 to 0.52 g / cm3, the bulk density ranges from 0.25 to 0.27 g / cm3, the compressive strength is 8000 Psi and D50 (i.e., the average particle size, the particle size that 50% of the particles on the cumulative particle size distribution curve are less than or equal to) is tested at 40 um, the test results show that the surface temperature of the aerosol generating product is increased by 5-10°C, the improvement efficiency is 3-7%, and the temperature of the aerosol generating device is reduced by 3-5°C, which effectively reduces heat loss and improves heating efficiency. It can be seen that replacing the conventional plastic parts in the aerosol generating device with the injection molding parts containing thermal insulation particles of this application can reduce the heat transfer rate, reduce heat loss and improve energy utilization efficiency to a certain extent.

[0132] It should be noted that, although it is mentioned above that one or more of the accommodating cavity 1, the heating element mounting base (3, 3”), the first support member (7, 7', 7”), the second support member (5, 5”) and the surrounding member 8 are replaced by the injection-molded parts containing thermal insulation particles of this application, those skilled in the art can understand that any plastic parts in the aerosol generating device can be replaced by the injection-molded parts containing thermal insulation particles of this application, thereby reducing the heat transfer rate to a certain extent, reducing heat loss and improving energy utilization efficiency.

[0133] 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 injection molded component for an aerosol generating device, characterized in that: The injection molded component is formed by an injection molding process from a plastic raw material containing thermal insulation particles, wherein the plastic raw material containing thermal insulation particles is formed by mixing thermal insulation particles during the production of the plastic raw material, and the thermal conductivity of the thermal insulation particles is 0.008-0.58 W / mK.

2. The injection molded component for an aerosol generating device according to claim 1, characterized in that: The thermal conductivity is 0.038-0.085 W / mK.

3. The injection molded component for an aerosol generating device according to claim 1, characterized in that: The true density of the thermal insulation particles is greater than or equal to 0.05 g / cm 3 And less than 0.12g / cm 3 , or, greater than or equal to 0.12g / cm 3 And less than or equal to 1.60g / cm 3 , or, greater than 1.60g / cm 3 And less than or equal to 3.00g / cm 3 .

4. The injection molded component for an aerosol generating device according to claim 1, characterized in that: The bulk density of the thermal insulation particles is greater than or equal to 0.05 g / cm 3 And less than 0.10g / cm 3 , or, greater than or equal to 0.10g / cm 3 And less than or equal to 0.62g / cm 3 , or, greater than 0.62g / cm 3 And less than or equal to 2.50g / cm 3 .

5. The injection molded component for an aerosol generating device according to claim 1, characterized in that: The particle size of the thermal insulation particles ranges from greater than or equal to 0.2 um to less than 2 um, or greater than or equal to 2 um to less than or equal to 130 um, or greater than 130 um to less than or equal to 450 um.

6. The injection molded component for an aerosol generating device according to claim 1, characterized in that: The heat-insulating particles are hollow spherical, and / or the pressure of the internal cavity of the heat-insulating particles is less than or equal to the working environment pressure of the injection-molded component.

7. The injection molded component for an aerosol generating device according to claim 1, characterized in that: The heat-insulating particles are made of glass, ceramic or polymer material.

8. The injection molded component for an aerosol generating device according to any one of claims 1 to 7, characterized in that: The injection molded part has at least one or more of the following parameters: The maximum compressive strength of the thermal insulation particles is less than or equal to 30,000 psi, or greater than 30,000 psi and less than or equal to 50,000 psi; The pH range of the thermal insulation particles is greater than or equal to 6.8 and less than 8, or greater than or equal to 8 and less than or equal to 9, or greater than 9 and less than or equal to 10.5; The mixing mass ratio of the heat-insulating particles in the production process of the plastic raw material is in the range of less than 10%, or greater than or equal to 10% and less than or equal to 35%, or greater than 35% and less than or equal to 55%; and / or the mixing volume ratio of the heat-insulating particles in the production process of the plastic raw material is in the range of less than 5%, or greater than or equal to 5% and less than or equal to 35%, or greater than 35% and less than or equal to 60%; The heat-insulating particles mixed during the production of the plastic raw material are of equal size; The injection molded component is a component that is in contact with or disposed in a gap with the heating element of the aerosol generating device and / or the aerosol generating article used in the aerosol generating device.

9. 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; A power supply assembly, wherein the accommodating cavity is located in the first area, and the power supply assembly is located in the second area; Wherein, the base and / or the accommodating cavity comprises an injection molded component as claimed in any one of claims 1 to 8.

10. An aerosol generating device, characterized in that: include: a heating element, which is used to heat the aerosol generating article 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 a radial 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, the elastic member being located between the first support member and the mounting portion to close the opening of the first hollow portion; or the first support member being located between the elastic member and the mounting portion, the elastic member filling the first hollow portion to prevent the fluid from flowing into the first hollow portion; Wherein, one or more of the accommodating cavity, the heating element mounting seat and the first supporting member comprises an injection molded component according to any one of claims 1 to 8.

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