Heating element, nebulizer, and aerosol-generating device

Abstract

The utility model discloses a heating body, an atomizer and an aerosol generating device. The heating body comprises a base, a plurality of heating pieces, a plurality of first electric connecting pieces and a plurality of second electric connecting pieces. The base comprises a first end and a second end which are opposite to each other, and an accommodating cavity penetrating through the first end and the second end. The heating elements are arranged in the containing cavity at intervals in the axis direction of the containing cavity, when the heating element works, at least one of the heating elements emits heat to heat the aerosol generating substrate, each heating element comprises a heating part, a first conductive part and a second conductive part, and the first conductive part and the second conductive part are electrically connected with the heating part. The plurality of first electric connecting pieces penetrate through the first end and are electrically connected with the first conductive parts of the plurality of heating pieces respectively, and the plurality of first electric connecting pieces are electrically isolated from one another. And the second electric connecting piece penetrates through the first end and is electrically connected with the second conductive parts of the plurality of heating pieces. In the application, the plurality of heating pieces can form a plurality of heating powers, so that the use requirements of users can be effectively met.

Description

Technical Field

[0001] This application relates to the field of electronic atomization technology, and more specifically, to a heating element, an atomizer, and an aerosol generating device. Background Technology

[0002] An aerosol generator is a small device that uses heating technology to act on an aerosol-generating matrix and generate aerosols. In related technologies, the atomizer in an aerosol generator for a liquid matrix includes a heating element, which, when energized, heats and atomizes the aerosol-generating matrix to generate aerosols. Typically, the heating element operates at its rated voltage and power, at which point it is in its optimal atomization state, ensuring the user's vaping experience. However, when the heating element is operating at its optimal atomization state, its power settings are limited, meaning the heating power it can achieve is relatively low, which may not meet the user's needs. Utility Model Content

[0003] The embodiments of this application provide a heating element, an atomizer, and an aerosol generating device to solve at least one of the aforementioned technical problems.

[0004] The heating element of this application includes a base, a plurality of heating elements, a plurality of first electrical connectors, and a second electrical connector. The base includes a first end and a second end opposite to each other, and a receiving cavity penetrating the first end and the second end. The plurality of heating elements are spaced apart in the receiving cavity along its axial direction. When the heating element is in operation, at least one of the plurality of heating elements generates heat to heat the aerosol-generating matrix. Each heating element includes a heating portion, a first conductive portion, and a second conductive portion, both of which are electrically connected to the heating portion. The plurality of first electrical connectors pass through the first end and are electrically connected to the first conductive portions of the plurality of heating elements, respectively, and are electrically isolated from each other. The second electrical connectors pass through the first end and are electrically connected to the second conductive portions of the plurality of heating elements.

[0005] In some embodiments, the heating element comprises three.

[0006] In some embodiments, at least one of the heating elements has a different length than the other heating elements in the axial direction of the accommodating cavity.

[0007] In some embodiments, at least one of the heating elements has a different size than the other heating elements in the circumferential direction of the accommodating cavity.

[0008] In some embodiments, the heating element further includes a liquid guiding member, at least a portion of which is installed in the accommodating cavity, and a plurality of heating elements are disposed on the liquid guiding member, which is used to guide the aerosol generating matrix to the heating element.

[0009] In some embodiments, the base further includes a peripheral wall connecting the first end and the second end, the peripheral wall having at least one through-hole and a through-hole for mounting, the mounting hole also penetrating the second end. The liquid guiding member includes a body portion and a guiding portion. The body portion is housed in the receiving cavity. The guiding portion extends protruding from the peripheral wall of the body portion in a direction away from the body portion, and the guiding portion cooperates with the mounting hole to guide the liquid guiding member for mounting on the base.

[0010] In some embodiments, the heating element further includes a fixing member, which is mounted on the first end, and a plurality of first electrical connectors and second electrical connectors extend through the fixing member to the outside of the base.

[0011] In some embodiments, the fixing member is provided with a plurality of fixing grooves, which are recessed from the outer side of the peripheral wall of the fixing member toward the center of the fixing member, and a plurality of first electrical connectors and second electrical connectors are respectively fixed in different fixing grooves.

[0012] In some embodiments, the fixing member is provided with an air inlet, which communicates with the accommodating cavity and is used to allow outside air to enter the accommodating cavity.

[0013] The atomizer according to the embodiments of this application includes the heating element described in any of the above embodiments.

[0014] The aerosol generating device according to the embodiments of this application includes a housing and the atomizer described in the above embodiments, wherein the atomizer is disposed inside the housing.

[0015] In some embodiments, the aerosol generating device further includes a power supply unit and a control unit. The power supply unit is electrically connected to the atomizer. The control unit is electrically connected to the power supply unit and is used to control the power supply unit to supply power to the atomizer.

[0016] In the heating element, atomizer, and aerosol generating device of this application embodiment, the heating element includes multiple heating components, and when the heating element is working, at least one of the multiple heating components heats up to heat the aerosol generating matrix. Thus, when the heating components are working in the optimal atomization state, that is, when the multiple heating components are working at rated voltage and power, the multiple heating components can work independently, in combination, or alternately to form multiple heating powers to heat the aerosol generating matrix, thereby increasing the number of heating power levels of the heating element and effectively meeting the user's usage needs.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

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

[0019] Figure 1 This is a schematic diagram of the structure of an aerosol generating apparatus according to certain embodiments of this application;

[0020] Figure 2 yes Figure 1 A schematic cross-sectional view of the aerosol generation device shown.

[0021] Figure 3 yes Figure 1 A three-dimensional structural diagram of the heating element of the atomizer in the aerosol generating device is shown.

[0022] Figure 4 yes Figure 3 The diagram shown is a three-dimensional exploded view of the heating element.

[0023] Figure 5 yes Figure 3 A schematic diagram of the planar structure of the heating element before it is wound.

[0024] Figure 6 This is a schematic diagram of the assembly of the heating element of the atomizer in an aerosol generating apparatus according to certain embodiments of this application.

[0025] Explanation of key component symbols:

[0026] 1000 aerosol generating device;

[0027] 100 Atomizer; 300 Power Supply Unit; 500 Housing; 700 Control Unit; 900 Mouthpiece;

[0028] 10. Heating element; X-axis direction; A. Cotton swab;

[0029] 11 Base, 111 First end, 113 Second end, 115 Receiving cavity, 117 Peripheral wall, 118 Liquid inlet, 119 Mounting hole; 13 Heating element, 131 Heating part, 133 First conductive part, 135 Second conductive part; 15 First electrical connector; 17 Second electrical connector; 18 Liquid guide, 181 Body part, 183 Guide part; 19 Fixing element, 191 Fixing groove, 193 Air inlet. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] An aerosol generator is a small device that uses heating technology to act on an aerosol-generating matrix and generate aerosols. In related technologies, the atomizer in an aerosol generator for a liquid matrix includes a heating element, which, when energized, heats and atomizes the aerosol-generating matrix to generate aerosols. Typically, the heating element operates at its rated voltage and power, at which point it is in its optimal atomization state, ensuring the user's vaping experience. However, when the heating element is operating at its optimal atomization state, its power settings are limited, meaning the heating power it can achieve is relatively low, which may not meet the user's needs. To address this issue, please refer to [link to relevant documentation]. Figure 1 This application provides a heating element 10, an atomizer 100, and an aerosol generating device 1000.

[0037] Please see Figure 1 The aerosol generating device 1000 provided in this application includes an atomizer 100 and a housing 500, with the atomizer 100 disposed inside the housing 500.

[0038] The housing 500 is a structure within the aerosol generating device 1000 that houses and protects the atomizer 100 and other devices. The housing 500 can be made of materials including, but not limited to, plastics, aluminum alloys, copper, iron, steel, and carbon fiber composites. In one example, the housing 500 can be made of plastic, making it lighter and thus contributing to the portability of the aerosol generating device 1000. In another example, the housing 500 can be made of a high-temperature resistant material, preventing damage (such as deformation) caused by heat and ensuring the stability and reliability of the aerosol generating device 1000. High-temperature resistant materials include, but are not limited to, polyetheretherketone (PEEK), high-melting-point metals, and high-temperature ceramics.

[0039] The atomizer 100 is a structure in the aerosol generating device 1000 capable of generating aerosols by heating the aerosol generating matrix. The aerosol generating matrix is ​​a processed product capable of generating aerosols under the action of heating, ultrasound, or mechanical vibration. The aerosol generating matrix can be in liquid, solid, or semi-solid state. The aerosol can be visible or invisible and may include vapors (e.g., fine particulate matter in a gaseous state, which is typically liquid or solid at room temperature) as well as liquid droplets of gas and condensed vapor.

[0040] Furthermore, please combine Figure 2 In some embodiments, the aerosol generating device 1000 further includes a power supply unit 300 and a control unit 700. The power supply unit 300 is electrically connected to the atomizer 100. The control unit 700 is electrically connected to the power supply unit 300 and is used to control the power supply unit 300 to supply power to the atomizer 100. It should be noted that in some embodiments, the power supply unit 300 is a structure in the aerosol generating device 1000 used to supply power to the atomizer 100. The power supply unit 300 can be a dry cell battery or a rechargeable battery, including but not limited to lithium-ion batteries, nickel-metal hydride batteries, and nickel-cadmium batteries.

[0041] Specifically, in some embodiments, when the user inhales the aerosol generating device 1000, the control unit 700 can control the power supply unit 300 to supply power to the atomizer 100. In this case, the electrical energy of the power supply unit 300 can be transferred to the atomizer 100 so that the atomizer 100 heats and atomizes the aerosol generating matrix to generate aerosol. When the user stops inhaling the aerosol generating device 1000, or when the user does not use the aerosol generating device 1000, the control unit 700 can control the power supply unit 300 to stop supplying power to the atomizer 100. In this case, the electrical energy of the power supply unit 300 cannot be transferred to the atomizer 100.

[0042] Since the aerosol generating device 1000 in this embodiment includes an atomizer 100, it is understood that the aerosol generating device 1000 has at least the same beneficial effects as the atomizer 100. Therefore, for the beneficial effects of the aerosol generating device 1000, please refer to the beneficial effects of the atomizer 100 described below.

[0043] Please see Figure 1 and Figure 3 The atomizer 100 provided in this embodiment includes a heating element 10. Since the atomizer 100 in this embodiment includes a heating element 10, it is understood that the atomizer 100 has at least the same beneficial effects as the heating element 10. Therefore, for the beneficial effects of the atomizer 100, please refer to the beneficial effects of the heating element 10 described below.

[0044] Please see Figure 3 and Figure 4 The heating element 10 of this application includes a base 11, a plurality of heating elements 13, a plurality of first electrical connectors 15, and a second electrical connector 17. The base 11 includes a first end 111 and a second end 113 facing each other, and a receiving cavity 115 passing through the first end 111 and the second end 113. The plurality of heating elements 13 are spaced apart in the receiving cavity 115 along the axial direction X. When the heating element 10 is working, at least one of the plurality of heating elements 13 heats up to heat the aerosol to generate a matrix. Each heating element 13 includes a heating part 131, a first conductive part 133, and a second conductive part 135. The first conductive part 133 and the second conductive part 135 are both electrically connected to the heating part 131. The plurality of first electrical connectors 15 pass through the first end 111 and are respectively electrically connected to the first conductive part 133 of the plurality of heating elements 13. The plurality of first electrical connectors 15 are electrically isolated from each other. The second electrical connector 17 passes through the first end 111 and is electrically connected to the second conductive parts 135 of the plurality of heating elements 13.

[0045] The base 11 is a structure in the heating element 10 used to mount the heating element 13 and other components. The materials of the base 11 include, but are not limited to, plastic, glass, ceramic, and metal. The outer contour shape of the base 11 may include, but is not limited to, a cylinder, cube, cuboid, triangular prism, and hexagonal prism. In this embodiment, a cylindrical outer contour shape of the base 11 is used as an example for explanation.

[0046] The cross-sectional shape of the accommodating cavity 115 can be a regular shape such as square, circle, or triangle, or an irregular shape, and is not limited herein. The accommodating cavity 115 can at least accommodate the heating element 13. When the aerosol generating matrix enters the accommodating cavity 115 and comes into contact with the heating element 13, the aerosol generating matrix can be heated to generate aerosol, and the generated aerosol can be discharged from the accommodating cavity 115 to the outside of the base 11.

[0047] The heating element 13 is a structure in the heating body 10 used to heat the aerosol generation matrix. The heating element 13 includes, but is not limited to, heating circuits, heating films, heating sheets, heating wires, and heating meshes. The heating element 13 can be made of at least one of the following materials with appropriate resistance: metal materials, metal alloys, graphite, carbon, conductive ceramics, tin-antimony oxide, other ceramic materials, and composite materials of metal materials. Suitable metal or alloy materials include at least one of nickel, cobalt, zirconium, titanium, nickel alloys, cobalt alloys, zirconium alloys, titanium alloys, nickel-chromium alloys, nickel-iron alloys, iron-chromium alloys, iron-chromium-aluminum alloys, titanium alloys, iron-manganese-aluminum based alloys, or stainless steel. In this embodiment, the heating element 13 is described as a heating mesh. It is understood that the heating element 13 in this embodiment has a hollow structure, which prevents the heating element 13 from obstructing the flow of the generated aerosol, thereby ensuring that the user can normally inhale the aerosol.

[0048] Furthermore, the materials of the multiple heating elements 13 may be the same or different. For ease of understanding, the following embodiment will use the example of multiple heating elements 13 being made of the same material. The fact that multiple heating elements 13 are made of the same material allows them to be manufactured using the same or similar processing techniques and parameters, simplifying the processing flow and improving the processing efficiency of the heating elements 13.

[0049] For example, the heating element 13 can be an integral structure, that is, the heating part 131, the first conductive part 133, and the second conductive part 135 can be integrally formed into a single structure. This reduces the number of parts and facilitates the assembly of the heating element 13; on the other hand, it makes the overall resistance of the heating element 10 more stable and the resistance distribution more uniform, thereby helping to achieve uniform atomization effect. In one example, the first conductive part 133 and the second conductive part 135 can both be made of nickel; the heating part 131 can be made of stainless steel or nickel-chromium alloy.

[0050] In some embodiments of this application, when the heating element 10 is working, at least one of the plurality of heating elements 13 heats up to heat the aerosol generating matrix. That is, when the user inhales the aerosol generating device 1000, the control unit 700 can control the power supply unit 300 to transmit electrical energy to at least one of the plurality of heating elements 13, so that at least one heating element 13 can heat up to heat the aerosol generating matrix.

[0051] Furthermore, in some embodiments, the heating element 13 comprises three. Specifically, the three heating elements 13 are spaced apart in the accommodating cavity 115 along the axial direction X. When the heating body 10 is working, at least one of the three heating elements 13 heats up to heat the aerosol generation matrix. For example, when the heating body 10 is working normally, one of the three heating elements 13 heats up to heat the aerosol generation matrix; or, any two of the three heating elements 13 heat up to heat the aerosol generation matrix; or, all three heating elements 13 heat up to heat the aerosol generation matrix.

[0052] For example, the three heating elements 13 include a first heating element, a second heating element, and a third heating element, and the rated power of the first heating element, the second heating element, and the third heating element can be 8W, 12W, and 16W respectively. In this case, the heating element 10 can include seven power levels, and the heating power corresponding to the seven power levels is 8W (the first heating element works independently), 12W (the second heating element works independently), 16W (the third heating element works independently), 20W (the first heating element and the second heating element work together), 24W (the first heating element and the third heating element work together), 28W (the second heating element and the third heating element work together), and 36W (the first heating element, the second heating element, and the third heating element work together). This can effectively meet the different usage needs of users.

[0053] Please combine Figure 1 and Figure 2 The first electrical connector 15 is a structure in the heating element 10 used to connect the power supply unit 300 and the heating element 13. The first electrical connector 15 may include, but is not limited to, wire harnesses, leads, and copper busbars. The leads may be made of at least one of conductive materials such as copper, aluminum, nickel-iron alloy, gold, and copper alloy. In some embodiments of this application, when the first electrical connector 15 is connected to both the power supply unit 300 and the heating element 13, the electrical energy of the power supply unit 300 can be transferred to the heating element 13 through the first electrical connector 15 to generate heat. The multiple first electrical connectors 15 are electrically isolated from each other; that is, the multiple first electrical connectors 15 are spaced apart from each other and do not form a circuit connection. This ensures that the control unit 700 can individually control the operating state of each heating element 13, thereby enabling the heating element 13 to operate independently.

[0054] The second electrical connector 17 is a structure in the heating element 10 used to connect the power supply unit 300 and the heating element 13. The second electrical connector 17 may include, but is not limited to, wire harnesses, leads, and copper busbars. The leads may be made of at least one of conductive materials such as copper, aluminum, nickel-iron alloy, gold, and copper alloy. In some embodiments of this application, when the second electrical connector 17 is connected to both the power supply unit 300 and the heating element 13, the second electrical connector 17 can transmit electrical energy from the heating element 13 back to the power supply unit 300. Thus, the arrangement of the second electrical connector 17 and the first electrical connector 15 enables the power supply unit 300 and the heating element 13 to form a complete circuit, thereby ensuring the normal operation of the heating element 10. Multiple heating elements 13 share one second electrical connector 17. Therefore, compared to each heating element 13 corresponding to one second electrical connector 17, the number of second electrical connectors 17 is reduced, thereby improving the assembly efficiency of the heating element 10 and reducing the space occupied by the heating element 10, which is beneficial for miniaturizing the heating element 10.

[0055] In this configuration, both the first electrical connector 15 and the second electrical connector 17 pass through the first end 111 of the base 11. Thus, compared to one of the first electrical connector 15 and the second electrical connector 17 passing through the first end 111 and the other passing through the second end 113, the electrical connection between the first electrical connector 15 and the second electrical connector 17 and the power supply unit 300 is more convenient, reducing the complexity of the wiring, preventing the electrical connectors (including the first electrical connector 15 and the second electrical connector 17) from being too long or having too many bends, which would generate additional resistance, and improving the heating performance of the heating element 10.

[0056] In the heating element 10 of this application embodiment, the heating element 10 includes a plurality of heating elements 13, and when the heating element 10 is working, at least one of the plurality of heating elements 13 heats up to heat the aerosol generating matrix. Thus, when the heating elements 13 are working in the optimal atomization state, that is, when the plurality of heating elements 13 are working at the rated voltage and power, the plurality of heating elements 13 can form a variety of heating power by working independently, working in combination, or working alternately to heat the aerosol generating matrix, thereby increasing the number of power levels of the heating element 10 and effectively meeting the user's usage needs.

[0057] In addition, compared to the heating element 10 which only includes one heating element 13, in this application, multiple heating elements 13 can heat and atomize the aerosol generating matrix by working independently or alternately. At this time, some of the multiple heating elements 13 can be in a non-working state. Thus, the heating elements 13 in the non-working state can achieve cooling, thereby preventing the heating elements 13 from overheating and being damaged due to long-term operation, thereby extending the service life of the heating elements 13 and ensuring the stability and reliability of the heating element 10.

[0058] The heating element 10 will be further explained below with reference to the accompanying drawings.

[0059] Please see Figure 2 and Figure 4 In some embodiments, the aerosol generating device 1000 may further include a suction nozzle 900 disposed on the housing 500, the suction nozzle 900 being used by a user to draw aerosol from the aerosol generating device 1000. Specifically, in some embodiments, the suction nozzle 900 may communicate with the receiving cavity 115, and the second end 113 may be closer to the suction nozzle 900 than the first end 111. Thus, when the user draws aerosol from the aerosol generating device 1000 through the suction nozzle 900, the aerosol in the receiving cavity 115 may flow out of the base 11 through the second end 113 and be drawn by the user.

[0060] Furthermore, in some embodiments, the nozzle 900 may include at least a filter section, which is connected to the receiving cavity 115. The user can inhale the aerosol generated in the receiving cavity 115 into their mouth through the filter section. Moreover, as the aerosol passes through the filter section, the filter section can filter out impurities in the aerosol, preventing the user from inhaling impurities and improving the user's suction experience. It should be noted that the filter section includes, but is not limited to, porous materials, such as cotton or porous ceramics. Porous materials facilitate the flow of gas and aerosols and have good adsorption capacity, effectively adsorbing impurities in the airflow and preventing the user from inhaling impurities.

[0061] Please see Figure 4 and Figure 5 In some embodiments, in the axial direction X of the accommodating cavity 115, the length of at least one heating element 13 is different from the length of the other heating elements 13.

[0062] Specifically, in some embodiments, the axial direction X of the accommodating cavity 115 can be the direction from the first end 111 to the second end 113; or, the direction from the second end 113 to the first end 111. In this embodiment, the length of at least one heating element 13 in the axial direction X of the accommodating cavity 115 is different from the lengths of other heating elements 13 in the axial direction X of the accommodating cavity 115. Thus, different heating elements 13 can exhibit different degrees of atomization and flavor when heating the atomized aerosol to generate the matrix, thereby facilitating the gradient atomization effect of the heating element 10 and improving the user's inhalation experience.

[0063] For example, when the heating element 13 includes three heating elements, one of the three heating elements 13 has a different length in the axial direction X of the accommodating cavity 115 than the other two heating elements 13; or, the lengths of the three heating elements 13 in the axial direction X of the accommodating cavity 115 are all different.

[0064] Furthermore, in some embodiments, the lengths of the plurality of heating elements 13 gradually increase in the direction from the first end 111 to the second end 113. That is, the heating element 13 closest to the mouthpiece 900 is the longest. Therefore, when the heating element 13 closest to the mouthpiece 900 is energized and heated, it can generate more heat, thereby increasing the amount of aerosol generated. The user can feel a stronger throat hit when inhaling, thus meeting the user's usage needs.

[0065] In other embodiments, all heating elements 13 have a centrally hollow structure, and the hollow shape of at least one heating element 13 is different from the hollow shapes of the other heating elements 13. This allows different heating elements 13 to have different resistances, and different heating elements 13 can exhibit different degrees of atomization and flavor when heating to generate the atomized aerosol matrix. This is beneficial for the heating element 10 to achieve a gradient atomization effect and improve the user's vaping experience. In addition, having multiple heating elements 13 with a centrally hollow structure can also reduce the weight of the heating elements 13, which is beneficial for achieving a lightweight heating element 10.

[0066] In some embodiments, at least one heating element 13 has a different size than the other heating elements 13 in the circumferential direction of the accommodating cavity 115.

[0067] Specifically, in some embodiments, in the circumferential direction of the accommodating cavity 115, the heating element 13 includes opposing first and second ends, a first conductive portion 133 is located at the first end of the heating element 13, and a second conductive portion 135 is located at the second end of the heating element 13. In this configuration, in the circumferential direction of the accommodating cavity 115, the second ends of multiple heating elements 13 are located in the same plane (a plane parallel to the axial direction X of the accommodating cavity 115), while the first end of at least one heating element 13 is located in a different plane (a plane parallel to the axial direction X of the accommodating cavity 115). This ensures that the multiple first electrical connectors 15 are electrically isolated from each other; that is, the multiple first electrical connectors 15 are spaced apart from each other and do not form a circuit connection. This ensures that the control unit 700 can individually control the operating state of each heating element 13, thereby enabling the heating element 13 to operate independently. For example, when there are three heating elements 13, the dimensions of the three heating elements 13 are different in the circumferential direction of the accommodating cavity 115.

[0068] Please see Figure 3 and Figure 4 In some embodiments, the heating element 10 further includes a liquid guide 18, at least a portion of which is installed in the accommodating cavity 115. A plurality of heating elements 13 are disposed on the liquid guide 18, which is used to guide the aerosol generating matrix to the heating elements 13.

[0069] The liquid guiding component 18 can be a flexible cotton core with numerous capillaries capable of adsorbing the aerosol-generating matrix. The liquid guiding component 18 includes, but is not limited to, organic fiber cotton. In one example, multiple heating elements 13 can be disposed on the inner wall of the liquid guiding component 18. When the liquid guiding component 18 guides the aerosol-generating matrix to the heating elements 13, the heating elements 13 can heat the aerosol-generating matrix to generate aerosols. In another example, multiple heating elements 13 can be embedded within the liquid guiding component 18. In this way, the liquid guiding component 18 can provide a certain degree of protection for the heating elements 13, reducing the possibility of deformation and thus improving the stability and reliability of the heating element 10.

[0070] Furthermore, in some embodiments, the base 11 further includes a peripheral wall 117 connecting the first end 111 and the second end 113, and the peripheral wall 117 is provided with at least one through liquid inlet hole 118. Specifically, in some embodiments, the atomizer 100 may also include a liquid storage chamber for storing the aerosol generating matrix. Wherein, when the aerosol generating matrix enters the receiving cavity 115 through the liquid inlet hole 118, the liquid guide 18 can guide the aerosol generating matrix to the heating element 13, so that the aerosol generating matrix can be heated and atomized by the heating element 13 to generate aerosol.

[0071] In some embodiments, the projection of the liquid inlet 118 onto the axial direction X of the accommodating cavity 115 at least partially coincides with the projection of the heating element 13 onto the axial direction X of the accommodating cavity 115. That is, the liquid inlet 118 is opposite to the heating element 13 in the axial direction X perpendicular to the accommodating cavity 115. This allows the aerosol generating matrix to be quickly guided to contact the heating element 13, preventing the dry burning problem caused by the excessive time spent in contact between the aerosol generating matrix and the heating element 13, thereby ensuring the user's sucking experience.

[0072] In some embodiments, a through mounting hole 119 is provided on the peripheral wall 117, and the mounting hole 119 also penetrates the second end 113. The liquid guiding member 18 includes a body portion 181 and a guiding portion 183. The body portion 181 is accommodated in the receiving cavity 115. The guiding portion 183 protrudes from the peripheral wall 117 of the body portion 181 in a direction away from the body portion 181, and the guiding portion 183 cooperates with the mounting hole 119 to guide the liquid guiding member 18 to be installed on the base 11.

[0073] Specifically, in some embodiments, the liquid guide 18 can extend into the receiving cavity 115 from the second end 113 to achieve the assembly of the liquid guide 18 and the base 11. When the liquid guide 18 extends into the receiving cavity 115 from the second end 113, the guide portion 183 can extend into the mounting hole 119, thus guiding the liquid guide 18 to be installed on the base 11. Therefore, the mounting hole 119 facilitates the installation and positioning of the liquid guide 18 on the base 11, improving the assembly efficiency of the liquid guide 18 and the base 11; on the other hand, it limits the installation of the liquid guide 18 on the base 11, preventing the liquid guide 18 from falling out of the receiving cavity 115 from the first end 111, ensuring the stability of the liquid guide 18 installed on the base 11. It should be noted that in some embodiments, the guide portion 183 may be flush with the outer side of the peripheral wall 117, which can prevent the guide portion 183 from interfering with other structures of the atomizer 100, thereby ensuring the normal assembly of the heating element 10.

[0074] Please see Figure 4 In some embodiments, the heating element 10 further includes a fixing member 19, which is mounted on the first end 111. Multiple first electrical connectors 15 and second electrical connectors 17 extend through the fixing member 19 to the base 11. Thus, the fixing member 19 can fix the multiple first electrical connectors 15 and second electrical connectors 17 to the base 11, preventing the first electrical connectors 15 and second electrical connectors 17 from shaking or being pulled under external force, which could cause deformation of the heating element 13, thereby ensuring the stability and reliability of the heating element 13 during operation.

[0075] In some embodiments, the fastener 19 and the base 11 may be joined together by a non-removable connection. This non-removable connection includes, but is not limited to, bonding, welding, and interference fit. In other embodiments, the fastener 19 and the base 11 may be joined together by a detachable connection. This detachable connection includes, but is not limited to, snap-fit ​​connections or threaded connections.

[0076] In some embodiments, the fixing member 19 is provided with a plurality of fixing grooves 191, which are recessed from the outside of the peripheral wall 117 of the fixing member 19 toward the center of the fixing member 19, and a plurality of first electrical connectors 15 and second electrical connectors 17 are respectively fixed in different fixing grooves 191.

[0077] Specifically, in some embodiments, the cross-sectional shape and size of the fixing groove 191 are basically the same as the cross-sectional shape and size of the first electrical connector 15. Correspondingly, the cross-sectional shape and size of the fixing groove 191 are also basically the same as the cross-sectional shape and size of the second electrical connector 17. This ensures the limiting effect of the fixing member 19 on the first electrical connector 15 and the second electrical connector 17.

[0078] Please combine Figure 1 In some embodiments, the fixing member 19 is provided with an air inlet 193, which communicates with the accommodating cavity 115 and is used to allow outside air to enter the accommodating cavity 115. Specifically, when the user draws in the aerosol generating device 1000, outside air can enter the accommodating cavity 115 through the air inlet 193 to ensure that the aerosol generating matrix can generate aerosol when the heating element 13 heats the aerosol generating matrix.

[0079] It is understood that in some embodiments, the quantity relationship between the fixing slot 191 and the first electrical connector 15 is one-to-one, that is, one fixing slot 191 corresponds to one first electrical connector 15; correspondingly, the quantity relationship between the fixing slot 191 and the second electrical connector 17 is also one-to-one, that is, one fixing slot 191 corresponds to one second electrical connector 17. Furthermore, the number of fixing slots 191 can be greater than the number of first electrical connectors 15 and second electrical connectors 17. In this way, outside air can also enter the receiving cavity 115 through the fixing slots 191, thereby increasing the air intake and facilitating aerosol generation.

[0080] The air inlet 193, the accommodating cavity 115, and the suction nozzle 900 can form a relatively straight airflow channel. This ensures that sufficient outside air enters the accommodating cavity 115 when the aerosol generating device 1000 is being drawn in, which is beneficial for aerosol generation. On the other hand, it can reduce suction resistance and improve the user's suction experience.

[0081] Please see Figures 4 to 6 In some embodiments, the preparation steps of the heating element 10 may include: firstly, welding a plurality of first electrical connectors 15 to the first conductive portions 133 of the corresponding heating elements 13, and welding second electrical connectors 17 to the second conductive portions 135 of the plurality of heating elements 13, thereby forming an integral structure, i.e., forming a first structure (e.g., Figure 5 (as shown); then, the first structure is wound around the outer periphery of the cotton swab A; then, the liquid guide 18 is wound around the outer periphery of the first structure and at least a plurality of heating elements 13 are wrapped to form an integral structure (second structure); then, the second structure is inserted from the second end 113 into the receiving cavity 115 of the base 11; then, the liquid guide 18 extending beyond the outer side of the peripheral wall 117 of the base 11 is cut off so that the guide portion 183 is flush with the outer side of the peripheral wall 117; finally, the fixing member 19 is installed on the first end 111 of the base 11 and the cotton swab A is pulled out, thus completing the preparation of the heating element 10.

[0082] It is understood that the preparation steps of the heating element 10 in the above embodiments are merely illustrative examples. In other embodiments, the preparation steps of the heating element 10 may be other existing methods, which will not be described one by one here.

[0083] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0084] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A heating element, characterized in that, include: A base, the base including opposing first and second ends, and a receiving cavity extending through the first and second ends; Multiple heating elements are spaced apart in the accommodating cavity along the axial direction of the accommodating cavity. When the heating body is working, at least one of the multiple heating elements heats up to heat the aerosol to generate a matrix. Each heating element includes a heating part, a first conductive part, and a second conductive part. The first conductive part and the second conductive part are both electrically connected to the heating part. Multiple first electrical connectors are provided, each of which passes through the first end and is electrically connected to the first conductive part of the multiple heating elements respectively, and the multiple first electrical connectors are electrically isolated from each other; and The second electrical connector passes through the first end and is electrically connected to the second conductive portion of each of the plurality of heating elements.

2. The heating element according to claim 1, characterized in that, The heating element comprises three components.

3. The heating element according to claim 1 or 2, characterized in that, In the axial direction of the accommodating cavity, at least one of the heating elements has a different length than the other heating elements; and / or, In the circumferential direction of the accommodating cavity, at least one of the heating elements has a different size than the other heating elements.

4. The heating element according to claim 1 or 2, characterized in that, The heating element also includes: A liquid guiding component, at least a portion of which is installed in the accommodating cavity, and a plurality of heating elements disposed on the liquid guiding component, the liquid guiding component being used to guide the aerosol generating matrix to the heating elements.

5. The heating element according to claim 4, characterized in that, The base further includes a peripheral wall connecting the first end and the second end, the peripheral wall having at least one through-hole for liquid inlet and a through-hole for mounting, the mounting hole also penetrating the second end; the liquid guiding component includes: The body portion is housed within the receiving cavity; and The guide portion extends protruding from the peripheral wall of the body portion in a direction away from the body portion, and the guide portion cooperates with the mounting hole to guide the liquid guide member to be installed on the base.

6. The heating element according to claim 1 or 2, characterized in that, The heating element also includes: A fixing member is installed at the first end, and a plurality of first electrical connectors and second electrical connectors extend through the fixing member to the outside of the base.

7. The heating element according to claim 6, characterized in that, The fastener is provided with multiple fixing grooves, which are recessed from the outer side of the peripheral wall of the fastener toward the center of the fastener. Multiple first electrical connectors and second electrical connectors are respectively fixed in different fixing grooves.

8. An atomizer, characterized in that, include: The heating element according to any one of claims 1-7.

9. An aerosol generating device, characterized in that, include: case; and The atomizer of claim 8, wherein the atomizer is disposed within the housing.

10. The aerosol generating apparatus according to claim 9, characterized in that, The aerosol generating device further includes: A power supply unit, which is electrically connected to the atomizer; and A control unit is electrically connected to the power supply unit and is used to control the power supply unit to supply power to the atomizer.

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