Heating assembly and aerosol generating device

Abstract

The utility model discloses a heating assembly and an aerosol generating device. The heating assembly comprises a support, a heating body, a coil and a heat insulation piece. The support is provided with a containing cavity. The heating body is arranged in the containing cavity. The coil is arranged around the support, and the heating body emits heat under the condition that the coil is powered on. And the heat insulation piece is arranged between the coil and the heating body, is arranged on the bracket, and is used for blocking heat transfer between the coil and the heating body. According to the heating assembly and the aerosol generating device, the heat insulation part is arranged between the coil and the heating body and is arranged on the support, so that the heat insulation part can block heat transfer between the coil and the heating body, heat loss generated by the heating body can be reduced, and the heating efficiency is improved. It is guaranteed that heat generated by the heating body can act on the aerosol generation matrix contained in the containing cavity as much as possible, and therefore the generation efficiency of aerosol can be guaranteed while the heat utilization rate is increased.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and more specifically, to a heating component and an aerosol generating device. Background Art

[0002] An aerosol generating device is a device that can use the heat not burn (Heat Not Burning, HNB) technology to act on an aerosol generating substrate and generate an aerosol. The aerosol generating device can use a heating component to heat the aerosol generating substrate to generate an aerosol for the user to inhale. Generally, the heating component may include a heating element and a coil. When the coil is energized, the heating element generates heat to heat and atomize the aerosol generating substrate. However, due to the close distance between the heating element and the coil, the heat generated by the heating element can easily escape to the coil, and can also be conducted to other structures in the aerosol generating device (such as a housing, etc.) through the coil, resulting in poor heating effect of the heating element, affecting the efficiency of aerosol generation. Utility Model Content

[0003] Embodiments of the present application provide a heating component and an aerosol generating device.

[0004] The heating component of the embodiment of the present application is used for an aerosol generating device, and the heating component includes a bracket, a heating element, a coil and a heat insulating member. The bracket is provided with a receiving cavity. The heating element is arranged in the receiving cavity. The coil is arranged around the bracket, and when the coil is energized, the heating element generates heat. The heat insulating member is arranged between the coil and the heating element, and the heat insulating member is arranged on the bracket, and the heat insulating member is used to block the heat transfer between the coil and the heating element.

[0005] In some embodiments, the bracket includes a main body and a plurality of spaced protrusions, wherein the protrusions extend from the main body in a direction away from the central axis of the accommodating cavity, and along the extension direction of the bracket, the protrusions are provided with a plurality of spaced installation grooves, and the coil is disposed in the installation grooves.

[0006] In some embodiments, the thermal insulation member is provided with a plurality of through grooves, the plurality of through grooves respectively corresponding to the plurality of protrusions, and the through grooves are used to avoid the protrusions so as to connect the thermal insulation member with the main body.

[0007] In some embodiments, along the extension direction of the bracket, at least part of the protrusion includes a first sub-portion and a second sub-portion, and the first sub-portion and the second sub-portion are arranged at intervals. At least part of the through groove includes a first sub-groove and a second sub-groove, and the first sub-groove is used to avoid the first sub-portion, and the second sub-groove is used to avoid the second sub-portion.

[0008] In some embodiments, the plurality of mounting grooves are evenly spaced along the extension direction of the bracket.

[0009] In some embodiments, the plurality of mounting grooves are arranged at uneven intervals along the extension direction of the bracket.

[0010] In some embodiments, the bracket further includes a supporting portion, wherein the supporting portion is disposed on the main body portion, and the supporting portion is used to support the thermal insulation member so that the thermal insulation member is spaced apart from a peripheral wall of the main body portion.

[0011] In some embodiments, the bracket further includes a cover body, the cover body is connected to the main body and together with the main body forms the accommodating cavity. The heating assembly further includes a sealing member, the sealing member is disposed between the cover body and the heating element, and the sealing member is used to seal the gap between the cover body and the heating element.

[0012] In certain embodiments, the heating element is a hollow cylindrical magnetic induction body, and when the aerosol generating substrate is accommodated in the accommodating cavity, the heating element is sleeved on the aerosol generating substrate.

[0013] In certain embodiments, the heating element is a needle-type magnetic induction element or a sheet-type magnetic induction element, and when the aerosol generating substrate is accommodated in the accommodating cavity, the heating element is inserted into the aerosol generating substrate.

[0014] In some embodiments, the heating component further includes a barrier, which is sleeved on the bracket and located on the side of the coil facing away from the bracket, and the barrier is used to prevent heat from the coil and / or the heating element from being transferred toward the side of the barrier facing away from the coil.

[0015] The aerosol generating device according to the embodiment of the present application comprises a shell and a heating component as described in any one of the above embodiments, wherein the heating component is disposed in the shell.

[0016] In the heating component and aerosol generating device of the embodiment of the present application, the thermal insulation member is arranged between the coil and the heating element, and the thermal insulation member is arranged on the bracket. Therefore, the thermal insulation member can block the heat transfer between the coil and the heating element, thereby reducing the heat loss generated by the heating element, and ensuring that the heat generated by the heating element can act on the aerosol generating matrix accommodated in the accommodating cavity as much as possible, thereby improving the heat utilization rate while also ensuring the aerosol generation efficiency.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of a heating assembly in certain embodiments of the present application;

[0020] Figure 2 yes Figure 1 A three-dimensional exploded schematic diagram of the heating assembly shown;

[0021] Figure 3 yes Figure 1 A schematic cross-sectional view of a heating assembly shown;

[0022] Figure 4 yes Figure 1 Another cross-sectional schematic diagram of the heating assembly shown;

[0023] Figure 5 is a schematic diagram of the structure of a thermal insulation member in certain embodiments of the present application;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of an aerosol generating device according to certain embodiments of the present application.

[0025] Description of main component symbols:

[0026] Aerosol generating device 1000;

[0027] Heating assembly 100; housing 200;

[0028] The bracket 10, the accommodating cavity 101, the inner peripheral wall 103, the outer peripheral wall 105, the main body 11, the protruding portion 13, the mounting groove 131, the first sub-portion 133, the second sub-portion 135, the supporting portion 15, and the cover 17;

[0029] Heating element 20; coil 30;

[0030] The heat insulating member 40, the first end 401, the second end 403, the through groove 41, the first sub-groove 411, and the second sub-groove 413;

[0031] Sealing member 50 ; magnetic conductive member 60 ; barrier member 70 . DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0038] See also Figure 1 and Figure 2 The heating assembly 100 of the embodiment of the present application is used for an aerosol generating device 1000, and the heating assembly 100 includes a bracket 10, a heating element 20, a coil 30 and a heat insulating member 40. The bracket 10 is provided with a receiving cavity 101. The heating element 20 is arranged in the receiving cavity 101. The coil 30 is arranged around the bracket 10, and when the coil 30 is energized, the heating element 20 generates heat. The heat insulating member 40 is arranged between the coil 30 and the heating element 20, and the heat insulating member 40 is arranged on the bracket 10, and the heat insulating member 40 is used to block the heat transfer between the coil 30 and the heating element 20.

[0039] Specifically, in some embodiments, the bracket 10 may be made of one or more materials such as ceramic, polyetheretherketone (PEEK), ferrite, silicon dioxide, mica, copper oxide and manganese dioxide. Among them, ferrite may include soft magnetic materials, permanent magnetic materials, gyromagnetic materials, moment magnetic materials and piezomagnetic materials. In the case where the bracket 10 is made of ferrite material, the magnetic field generated by the coil 30 when it is energized has less loss in the process of passing through the bracket 10 and acting on the heating element 20, thereby improving the heating efficiency of the heating element 20 and reducing the power consumption of the heating component 100. The cross-sectional shape of the bracket 10 may include but is not limited to circular, square, rectangular and triangular. The embodiment of the present application is described by taking the cross-sectional shape of the bracket 10 as a circle as an example.

[0040] In some embodiments, when the coil 30 is energized, the coil 30 can generate a magnetic field, and the magnetic field acts on the heating element 20. By utilizing the eddy current effect, an induced rotating current (i.e., eddy current) proportional to the magnetic field strength can be formed in the heating element 20. As a result, the heating element 20 can generate heat under the action of the eddy current. Figure 6 When the coil 30 is contained in the containing cavity 101 as shown in the figure, the heat generated by the heating element 20 can act on the aerosol generating matrix 2000, so that the aerosol generating matrix 2000 generates an aerosol for the user to inhale; when the coil 30 is powered off, the magnetic field generated by the coil 30 disappears, and the heating element 20 stops generating heat.

[0041] Among them, the aerosol generating substrate 2000 is a component capable of generating aerosols. Specifically, the aerosol generating substrate 2000 can be made into fine particles by heating or ultrasonic vibration, and mixed with air to form an aerosol. The form of the aerosol generating substrate 2000 can be solid or liquid, wherein the aerosol generating substrate 2000 can be sheet-shaped or columnar, etc. In the present application, the aerosol generating substrate 2000 is cylindrical. Aerosols can be visible or invisible and can include steam (for example, fine particulate matter in a gaseous state, which is usually liquid or solid at room temperature) and liquid drops of gas and condensed steam. The "aerosol" herein covers the aerosol generated when the aerosol generating substrate 2000 in the heated aerosol generating device 1000 is heated.

[0042] In some embodiments, the thermal insulation 40 may be made of one or more materials such as aerogel, glass fiber, asbestos, rock wool, silicate and vacuum board. The setting of the thermal insulation 40 can block the heat generated by the heating element 20 from being transferred to the coil 30, thereby reducing the heat loss generated by the heating element 20, and on the one hand, it can effectively improve the heat utilization rate and reduce the power consumption of the heating component 100; on the other hand, it can ensure the amount of aerosol generated by the aerosol generating matrix 2000 when heated, thereby improving the user's suction experience. In the embodiment of the present application, the thermal insulation 40 may be connected to the peripheral wall of the bracket 10. In one example, the thermal insulation 40 may be connected to the peripheral wall of the bracket 10 in a detachable connection manner, thereby facilitating the installation and disassembly of the thermal insulation 40 and the bracket 10. Among them, the detachable connection method includes but is not limited to snap-on or threaded connection. In another example, the thermal insulation member 40 can be connected to the peripheral wall of the bracket 10 in a non-detachable connection manner, thereby improving the bonding strength between the thermal insulation member 40 and the bracket 10, thereby preventing the connection between the thermal insulation member 40 and the bracket 10 from being unstable during the operation of the heating component 100, thereby ensuring the heating effect of the heating component 100.

[0043] In some embodiments, the heat insulating member 40 is connected to the inner peripheral wall 103 of the bracket 10 (the side of the bracket 10 facing the heating element 20), and is disposed between the coil 30 and the heating element 20. In other embodiments, the heat insulating member 40 is connected to the outer peripheral wall 105 of the bracket 10 (the side of the bracket 10 facing away from the heating element 20), and is disposed between the coil 30 and the heating element 20. The embodiments of the present application are described only by taking the connection between the heat insulating member 40 and the outer peripheral wall 105 of the bracket 10 as an example.

[0044] In the aerosol generating device 1000 of the embodiment of the present application, the thermal insulation member 40 is arranged between the coil 30 and the heating element 20, and the thermal insulation member 40 is arranged on the bracket 10. Therefore, the thermal insulation member 40 can block the heat transfer between the coil 30 and the heating element 20, thereby reducing the heat loss generated by the heating element 20, and ensuring that the heat generated by the heating element 20 can act on the aerosol generating matrix 2000 accommodated in the accommodating cavity 101 as much as possible, thereby improving the heat utilization rate while ensuring the aerosol generation efficiency.

[0045] The heating assembly 100 is further described below with reference to the accompanying drawings.

[0046] See also Figure 2 and Figure 3 In some embodiments, the bracket 10 includes a main body 11 and a plurality of spaced protrusions 13, the protrusions 13 protrude and extend from the main body 11 in a direction away from the central axis MM1 of the accommodating cavity 101, and the protrusions 13 are provided with a plurality of spaced mounting grooves 131 along the extension direction of the bracket 10 (the same as the direction of the central axis MM1 of the accommodating cavity 101), and the coil 30 is arranged in the mounting grooves 131. It should be noted that, in some embodiments, the extension direction of the protrusions 13 is the same as the extension direction of the bracket 10; or the protrusions 13 are spirally extended on the main body 11 along the extension direction of the bracket 10. The embodiments of the present application are only described by taking the extension direction of the protrusions 13 being the same as the extension direction of the bracket 10 as an example.

[0047] Specifically, in some embodiments, the mounting groove 131 may be recessed from the side of the protrusion 13 away from the main body 11 toward the main body 11. When the coil 30 is arranged around the bracket 10, the coil 30 is arranged in the mounting groove 131. Therefore, the mounting groove 131 can limit the installation of the coil 30 on the bracket 10, and prevent the coil 30 from falling off the bracket 10 when the heating component 100 is impacted (for example, the heating component 100 falls or collides, etc.), thereby improving the stability and reliability of the heating component 100, and ensuring the heating effect of the heating component 100. In addition, compared with the coil 30 being directly carried on the bracket 10 (protrusion 13), the setting of the mounting groove 131 can, on the one hand, reduce the space size occupied by the coil 30 and the bracket 10, thereby facilitating the miniaturization of the heating component 100; on the other hand, it can prevent the coil 30 from interfering with other structures in the heating component 100, thereby ensuring the normal operation of the heating component 100.

[0048] In some embodiments, a plurality of mounting grooves 131 are evenly spaced along the extension direction of the bracket 10. Thus, when the coil 30 is disposed in the mounting groove 131 and the coil 30 is energized, the magnetic field applied by the coil 30 to the heating element 20 is more uniform, thereby preventing the local temperature of the heating element 20 from being too high or too low, ensuring that the aerosol generating matrix 2000 can be evenly consumed, and thus improving the user's smoking experience.

[0049] In other embodiments, multiple installation grooves 131 are arranged at non-uniform intervals along the extension direction of the bracket 10. Specifically, along the extension direction of the bracket 10, the smaller the distance between the multiple installation grooves 131, the greater the density of the coils 30 installed in the installation grooves 131, the greater the temperature field, and the higher the temperature of the heating element 20 corresponding to the coils 30; correspondingly, the smaller the distance between the multiple installation grooves 131, the smaller the density of the coils 30 installed in the installation grooves 131, the smaller the temperature field, and the lower the temperature of the heating element 20 corresponding to the coils 30. Therefore, the density of the coils 30 can be adaptively adjusted according to the use conditions of the heating component 100, thereby improving the applicability of the heating component 100.

[0050] See also Figure 2 and Figure 4 In some embodiments, the thermal insulation member 40 is provided with a plurality of through grooves 41 , and the plurality of through grooves 41 respectively correspond to the plurality of protrusions 13 , and the through grooves 41 are used to avoid the protrusions 13 so as to connect the thermal insulation member 40 with the main body 11 .

[0051] Understandably, please combine Figure 5 In some embodiments, the thermal insulation member 40 may be in sheet form. Specifically, before the thermal insulation member 40 is connected to the bracket 10, the thermal insulation member 40 is in sheet form, and the thermal insulation member 40 having a sheet structure can be formed into a cylindrical structure having a through cavity by winding, and connected to the peripheral wall of the bracket 10. In some embodiments, the through grooves 41 can be provided before the thermal insulation member 40 is connected to the bracket 10, that is, when the thermal insulation member 40 is in sheet form, a plurality of through grooves 41 corresponding to the protrusions 13 can be provided on the thermal insulation member 40. In other embodiments, the through grooves 41 can be provided during the process of connecting the thermal insulation member 40 to the bracket 10, that is, during the process of winding the thermal insulation member 40 from a sheet structure to a cylindrical structure, a plurality of through grooves 41 corresponding to the protrusions 13 can be provided on the thermal insulation member 40.

[0052] Specifically, see Figure 3 and Figure 5In (a), in some embodiments, along the extension direction of the bracket 10, at least part of the protrusion 13 includes a first sub-portion 133 and a second sub-portion 135, and the first sub-portion 133 and the second sub-portion 135 are arranged at intervals. At least part of the through groove 41 includes a first sub-portion 411 and a second sub-portion 413, and the first sub-portion 411 is used to avoid the first sub-portion 133, and the second sub-portion 413 is used to avoid the second sub-portion 135.

[0053] Specifically, in some embodiments, the thermal insulation member 40 includes a first end 401 and a second end 403 relative to each other, the first sub-groove 411 can extend from the first end 401 of the thermal insulation member 40 toward the second end 403 of the thermal insulation member 40, the second sub-groove 413 can extend from the second end 403 of the thermal insulation member 40 toward the first end 401 of the thermal insulation member 40, and the first sub-groove 411 and the second sub-groove 413 are spaced apart. In this case, the thermal insulation member 40 still remains as an integral structure. Therefore, when the thermal insulation member 40 is installed on the bracket 10, the thermal insulation member 40 can be integrally wrapped around the outer peripheral wall 105 of the bracket 10 (the outer peripheral wall of the main body 11), thereby simplifying the installation steps of the thermal insulation member 40, thereby reducing the user's operating burden and improving the assembly efficiency of the heating component 100.

[0054] Understandably, please combine Figure 5 As shown in Figure (b), in other embodiments, the through groove 41 penetrates the first end 401 of the thermal insulation member 40 and the second end 403 of the thermal insulation member 40, that is, the through groove 41 can divide the thermal insulation member 40 into a plurality of sub-members that are not connected to each other, and the plurality of sub-members are respectively arranged between two adjacent protrusions 13.

[0055] See also Figure 2 In some embodiments, the bracket 10 may further include a support portion 15, which is disposed on the body portion 11 and is used to support the heat insulating member 40 so that the heat insulating member 40 is spaced apart from the peripheral wall of the body portion 11. It should be noted that in some embodiments, along a direction perpendicular to the central axis MM1 of the accommodating cavity 101, the thickness of the support portion 15 is less than the minimum thickness of the protrusion 13, thereby preventing the support portion 15 from obstructing the installation of the coil 30 in the installation groove 131, thereby ensuring the normal assembly of the heating component 100.

[0056] Specifically, in some embodiments, the support portion 15 protrudes and extends from the main body portion 11 in a direction away from the central axis MM1 of the accommodating cavity 101, and the thermal insulation component 40 can be installed on the side of the support portion 15 away from the main body portion 11. Therefore, the setting of the support portion 15 can reduce the contact area between the thermal insulation component 40 and the main body portion 11, thereby further reducing the heat transfer from the heating element 20 to the coil 30, reducing the heat loss generated by the heating element 20, and ensuring that the heat generated by the heating element 20 can act on the aerosol generating matrix 2000 accommodated in the accommodating cavity 101 as much as possible, thereby improving the heat utilization rate while ensuring the aerosol generation efficiency.

[0057] In some embodiments, the support portion 15 is disposed between two adjacent protrusions 13, and the support portion 15 includes one or more, that is, one or more support portions 15 are disposed between two adjacent protrusions 13. Specifically, in some embodiments, when the support portion 15 includes one, the support portion 15 is spaced apart from at least one of the two adjacent protrusions 13, thereby ensuring that there is a gap between the thermal insulation member 40 and the main body 11, so that there is a thermal insulation space between the thermal insulation member 40 and the main body 11, thereby reducing the heat transfer from the heating element 20 to the coil 30, and reducing the heat loss generated by the heating element 20. In other embodiments, when the support portion 15 includes multiple, multiple support portions 15 are spaced apart between two adjacent protrusions 13.

[0058] Please continue reading Figure 2 In some embodiments, the heating component 100 may further include a magnetic conductive member 60, which is sleeved on the bracket 10 and located on the side of the coil 30 away from the bracket 10. The magnetic conductive member 60 is used to gather the magnetic field generated by the coil 30 in the magnetic conductive member 60, thereby increasing the speed at which the heating element 20 generates eddy current, that is, increasing the heating speed of the heating element 20, thereby improving the heating efficiency of the heating component 100. It should be noted that, in some embodiments, the magnetic conductive member 60 may be made of ferrite, wherein the ferrite may include soft magnetic materials, permanent magnetic materials, gyromagnetic materials, moment magnetic materials, and piezomagnetic materials.

[0059] In some embodiments, the heating assembly 100 may further include a barrier 70, which is sleeved on the bracket 10 and located on the side of the coil 30 away from the bracket 10. The barrier 70 is used to block the heat of the coil 30 and / or the heating element 20 from being transferred toward the side of the barrier 70 away from the coil 30, thereby reducing the heat loss generated by the heating element 20 and ensuring that the heat generated by the heating element 20 can act on the aerosol generating substrate 2000 accommodated in the accommodating cavity 101 as much as possible, thereby improving the heat utilization rate and ensuring the aerosol generation efficiency; on the other hand, it can prevent the heat generated by the heating element 20 from being transmitted to other structures in the aerosol generating device 1000 (such as the housing 200 and the functional components in the housing 200), thereby reducing the temperature rise of the aerosol generating device 1000 and improving the use safety of the aerosol generating device 1000. It should be noted that in some embodiments, the barrier 70 can be made of one or more materials such as aerogel, glass fiber, asbestos, rock wool, silicate and vacuum plate.

[0060] In some embodiments, the heating element 20 is a hollow cylindrical magnetic induction body. When the aerosol generating matrix 2000 is accommodated in the accommodating chamber 101, the heating element 20 is sleeved on the aerosol generating matrix 2000. In other embodiments, the heating element 20 is a needle-type magnetic induction body or a sheet-type magnetic induction body. When the aerosol generating matrix 2000 is accommodated in the accommodating chamber 101, the heating element 20 is inserted into the aerosol generating matrix 2000. In still other embodiments, two heating elements 20 may be provided, one of the two heating elements 20 may be a cylindrical magnetic induction body, and the other may be a needle-type magnetic induction body or a sheet-type magnetic induction body. The embodiments of the present application are only described by taking the heating element 20 as a hollow cylindrical magnetic induction body as an example.

[0061] In some embodiments, the heating element 20 may be a metal heating element or an alloy heating element, that is, the heating element 20 is made of metal or alloy material, so that it can ensure that there are enough free electrons in the heating element 20. Under the action of the magnetic field generated by the coil 30, an eddy current will be formed in the heating element 20, so that the entire heating element 20 produces a thermal effect and heats up rapidly. For example, the heating element 20 may be a stainless steel heating element. For another example, the heating element 20 can also be made of at least one of materials such as iron, nickel, cobalt, conductive carbon, graphite or carbon steel, that is, the heating element 20 can be formed by combining one or more of conductive materials, magnetic materials or magnetic conductive materials. Among them, when the heating element 20 is arranged around the aerosol generating substrate 2000, the shape and size of the heating element 20 can be substantially the same as the shape and size of the aerosol generating substrate 2000, so that the heating efficiency of the heating element 20 on the aerosol generating substrate 2000 can be ensured.

[0062] See also Figure 1 and Figure 2 In some embodiments, the bracket 10 may further include a cover 17, which is connected to the main body 11 and forms a receiving cavity 101 together with the main body 11. The heating assembly 100 may further include a seal 50, which is disposed between the cover 17 and the heating element 20, and is used to seal the gap between the cover 17 and the heating element 20. It should be noted that, in some embodiments, the material of the seal 50 includes but is not limited to rubber, plastic or silicone.

[0063] Specifically, it can be seen from the above that the heating element 20 is a hollow cylindrical structure. When the aerosol generating matrix 2000 is accommodated in the accommodating cavity 101, the heating element 20 is sleeved on the aerosol generating matrix 2000, so that the aerosol generated by the aerosol generating matrix 2000 is located inside the heating element 20 and can be inhaled by the user. However, if the aerosol leaks to the outside of the heating element 20 through the gap between the cover 17 and the heating element 20, the aerosol will cause corrosion damage to the circuit structure (such as a coil) disposed outside the heating element 20 and / or the internal structure of the aerosol generating device 1000, thereby affecting the normal operation of the heating component 100 and being detrimental to the safe use of the heating component 100. Therefore, in the present application, the provision of the sealing member 50 can reduce or even prevent the leakage of the aerosol to the outside of the heating element 20, thereby ensuring the normal operation of the heating component 100, extending the service life of the heating component 100, and improving the safe use of the heating component 100.

[0064] In some embodiments, the assembly steps of the heating assembly 100 may include: first, the heating element 20 is installed in the bracket 10; then, the sealing member 50 is connected to the cover 17, and the cover 17 is connected to the bracket 10; then, the heat insulating member 40 is installed on the peripheral wall of the bracket 10; then, the coil 30 is installed in the installation groove 131; finally, the blocking member 70 is sleeved on the bracket 10 and arranged on the side of the coil 30 away from the bracket 10, thereby completing the assembly of the heating assembly 100. It can be understood that in this embodiment, a sealing member is also provided in the bracket 10, and the sealing member can seal the gap between the heating element 20 and the bracket 10. Therefore, the assembly steps of the heating assembly 100 may also include: before the heating element 20 is arranged in the bracket 10, the sealing member is first connected to the heating element 20 and installed in the bracket 10 together with the heating element 20.

[0065] It can be understood that the assembly steps of the heating component 100 in the above embodiment are only exemplary. In other embodiments, the assembly steps of the heating component 100 can also be in other forms, which will not be described in detail here.

[0066] See also Figure 2 and Figure 6The aerosol generating device 1000 of the embodiment of the present application includes a shell 200 and a heating component 100 of any of the above embodiments, and the heating component 100 is disposed in the shell 200 .

[0067] In some embodiments, the shell 200 is a structure having a cavity for accommodating other components, and the heating component 100 is disposed inside the shell 200. Thus, the shell 200 can ensure the aesthetics of the heating component 100 while preventing external impurities such as water or dust from entering the heating component 100, thereby ensuring the stability and reliability of the operation of the heating component 100.

[0068] In the aerosol generating device 1000 of the embodiment of the present application, the thermal insulation member 40 is arranged between the coil 30 and the heating element 20, and the thermal insulation member 40 is arranged on the bracket 10. Therefore, the thermal insulation member 40 can block the heat transfer between the coil 30 and the heating element 20, thereby reducing the heat loss generated by the heating element 20, and ensuring that the heat generated by the heating element 20 can act on the aerosol generating matrix 2000 accommodated in the accommodating cavity 101 as much as possible, thereby improving the heat utilization rate while ensuring the aerosol generation efficiency.

[0069] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. At the same time, other implementation methods can be derived from the above-mentioned embodiments, so that structural and logical replacements and changes can be made without departing from the scope of this disclosure.

[0070] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A heating assembly for an aerosol generating device, characterized in that: include: A bracket, wherein the bracket is provided with a receiving cavity; A heating element, the heating element being disposed in the accommodating cavity; A coil, the coil is arranged around the bracket, and when the coil is energized, the heating element generates heat; and A heat insulating member is disposed between the coil and the heating element, the heat insulating member is disposed on the bracket, and the heat insulating member is used to block heat transfer between the coil and the heating element.

2. The heating assembly according to claim 1, characterized in that The bracket includes a main body and a plurality of spaced protrusions, wherein the protrusions extend from the main body in a direction away from the central axis of the accommodating cavity, and along the extension direction of the bracket, the protrusions are provided with a plurality of spaced installation grooves, and the coils are arranged in the installation grooves.

3. The heating assembly according to claim 2, characterized in that The heat insulating member is provided with a plurality of through grooves, which respectively correspond to the plurality of protrusions, and the through grooves are used to avoid the protrusions so as to connect the heat insulating member with the main body.

4. The heating assembly according to claim 3, characterized in that Along the extension direction of the bracket, at least part of the protrusion includes a first sub-portion and a second sub-portion, and the first sub-portion and the second sub-portion are arranged at intervals; At least part of the through groove includes a first sub-groove and a second sub-groove, the first sub-groove is used to avoid the first sub-portion, and the second sub-groove is used to avoid the second sub-portion.

5. The heating assembly according to claim 2, characterized in that: Along the extension direction of the bracket, the plurality of mounting grooves are evenly spaced; or Along the extension direction of the bracket, the plurality of mounting grooves are arranged at uneven intervals.

6. The heating assembly according to claim 2, characterized in that The support also includes: A support portion is provided on the main body portion, and is used to support the heat insulating member so that the heat insulating member is spaced apart from a peripheral wall of the main body portion.

7. The heating assembly according to claim 2, characterized in that The bracket further includes a cover body, which is connected to the main body and forms the accommodating cavity together with the main body; the heating assembly further includes: A sealing member is disposed between the cover and the heating element, and is used to seal a gap between the cover and the heating element.

8. The heating assembly according to claim 1, characterized in that The heating element is a hollow cylindrical magnetic induction body, and when the aerosol generating substrate is accommodated in the accommodating cavity, the heating element is sleeved on the aerosol generating substrate; or The heating element is a needle-type magnetic induction element or a sheet-type magnetic induction element. When the aerosol generating substrate is accommodated in the accommodating cavity, the heating element is inserted into the aerosol generating substrate.

9. The heating assembly according to any one of claims 1 to 8, characterized in that: The heating assembly also includes: The barrier is sleeved on the bracket and located on the side of the coil away from the bracket, and the barrier is used to prevent the heat of the coil and / or the heating element from being transferred toward the side of the barrier away from the coil.

10. An aerosol generating device, characterized in that: include: case; and The heating component according to any one of claims 1 to 9 is arranged in the shell.

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