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 body, at least two sections of heating tracks and at least two first conductive pieces. The base body comprises a first end and a second end which are opposite in the axial direction, the base body is provided with a hollow heating space in the axial direction, and the heating space is used for receiving an aerosol generating product. The main body parts of the at least two sections of heating tracks are sequentially arranged on the base body in the axial direction, each section of heating track comprises a heating part and a first connecting part connected to one end of the heating part, and each first connecting part is bent and extends from the corresponding heating part and forms a semi-closed heating area in a surrounding mode. The at least two conductive pieces are correspondingly and electrically connected with the first connecting parts forming the heating areas in the at least two sections of heating tracks respectively, and the at least two first conductive pieces are electrically isolated from each other. In the application, compared with the first connecting part which is not provided with a semi-closed heating area, the area where the first connecting part is located can gather more heat, and the uniformity of a peripheral temperature field is improved.

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 generating device is a small device that uses heating technology to act on aerosol-generating products and generate aerosols. In related technologies, the atomizer in an aerosol generating device includes a heating element, which heats the aerosol-generating product using a circumferential heating method to generate aerosols. Typically, the heating element includes a heating track and a conductive element, which conducts electrical energy to the heating track to generate heat. However, because the conductive element has better thermal conductivity, the heat generated in the area of ​​the heating track electrically connected to the conductive element is easily conducted away by the conductive element. This results in a lower heating temperature in the area of ​​the aerosol-generating product corresponding to the conductive element, making it difficult to uniformly atomize the aerosol and hindering the improvement of the atomization effect of the heating element. 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 substrate, at least two heating tracks, and at least two first conductive elements. The substrate includes a first end and a second end opposite each other in the axial direction. The substrate has a hollow heating space along the axial direction for receiving aerosol-generated articles. The main bodies of the at least two heating tracks are sequentially disposed along the axial direction on the substrate. Each heating track includes a heating portion and a first connecting portion connected to one end of the heating portion. Each first connecting portion bends and extends from the corresponding heating portion to form a semi-enclosed heating area. The at least two conductive elements are electrically connected to the corresponding first connecting portions forming the heating areas in the at least two heating tracks, and the at least two first conductive elements are electrically isolated from each other.

[0005] In some embodiments, the first connecting portion includes a first bent segment and a second bent segment. The first bent segment extends from the end of the heating element in a direction away from the heating element. The second bent segment extends from the end of the first bent segment in a direction towards the heating element, and the free end of the second bent segment is spaced apart from the heating element and the first bent segment.

[0006] In some embodiments, the first bending segment includes a first sub-segment and a second sub-segment. The first sub-segment extends obliquely in a first direction from the end of the heating element, and the second sub-segment extends obliquely in a direction away from the heating element from the end of the first sub-segment. The second bending segment includes a third sub-segment and a fourth sub-segment. The third sub-segment extends obliquely in a second direction from the end of the second sub-segment, and the fourth sub-segment extends obliquely in a direction towards the heating element from the end of the third sub-segment. The first direction and the second direction are opposite.

[0007] In some embodiments, the first connecting portion further includes a third bending segment, which bends and extends from the free end of the second bending segment toward the interior of the heating area, and the end of the third bending segment is spaced apart from the heating portion, the first bending segment and the second bending segment.

[0008] In some embodiments, the angle between the free end of the third bend and the second bend is [45°, 75°].

[0009] In some embodiments, each segment of the heating trajectory further includes a second connecting portion connected to the other end of the heating element, and at least two of the second connecting portions of at least two heating trajectories are electrically connected to each other by a second conductive element located in the middle region between the first end and the second end, and each of the first connecting portions is adjacent to the corresponding heating element.

[0010] In some embodiments, the width of the first connecting portion gradually decreases from the width of the corresponding heating portion in the direction of extension to the end.

[0011] In some embodiments, the axial projection height of the main body portion of the heating trajectory adjacent to the first end is less than the axial projection height of the main body portion of the adjacent heating trajectory.

[0012] The atomizer of this application includes the heating element described in any of the above embodiments.

[0013] The aerosol generating apparatus of this application includes the atomizer described in any of the above embodiments.

[0014] In the heating element, atomizer, and aerosol generating device of this application, each segment of the heating trajectory includes a heating part and a first connecting part connected to one end of the heating part. Each first connecting part extends from the corresponding heating part by bending and surrounds a semi-enclosed heating area. Therefore, compared to the first connecting part not forming a semi-enclosed heating area, for example, compared to the first connecting part extending in a straight line from the end of the heating part, the area where the first connecting part is located can gather more heat. This makes the heating trajectory less affected by the conductive parts in terms of the heating temperature of the aerosol generating product, improves the uniformity of the surrounding temperature field, and thus ensures uniform atomization of the aerosol generating product, improves the atomization effect, and effectively meets the user's needs.

[0015] 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

[0016] 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:

[0017] Figure 1 This is a schematic diagram of the structure of an aerosol generating apparatus according to certain embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the structure of an aerosol generating apparatus and an aerosol generating article according to certain embodiments of this application;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of an aerosol generating apparatus and an aerosol generating article according to certain embodiments of this application.

[0020] Figure 4 This is a three-dimensional structural diagram of the heating element in an atomizer according to certain embodiments of this application;

[0021] Figure 5 yes Figure 4 The diagram shows the unfolded structure of the heating element;

[0022] Figure 6 yes Figure 5 Enlarged view of point VI in the middle;

[0023] Figure 7 yes Figure 5 Enlarged diagram of point VII in the middle;

[0024] Figure 8 This is a schematic diagram of the heating trajectory of the heating element in an atomizer according to certain embodiments of this application.

[0025] Explanation of key component symbols:

[0026] 1000 aerosol generating device; 3000 aerosol generating products;

[0027] 100 Atomizer; 300 Electronic Control Components; 500 Housing;

[0028] 10 Heating element; X-axis; 30 Atomizing seat, 31 Receptacle; A First direction, B Second direction, C Extension direction;

[0029] 11 Substrate, 111 First end, 113 Second end, 115 Heating space; 13 Heating trajectory, 131 Heating part, 133 First connecting part, 1330 Heating area, 1331 First bending segment, 1332 First sub-segment, 1333 Second sub-segment, 1334 Second bending segment, 1335 Third sub-segment, 1336 Fourth sub-segment, 1337 Third bending segment, 135 Second connecting part, 137 First heating trajectory, 139 Second heating trajectory; 15 First conductive element; 17 Second conductive element. 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] In related technologies, the atomizer in an aerosol generating device includes a heating element, which can heat the aerosol-generating product to generate aerosol using a circumferential heating method. Typically, the heating element includes a heating track and a conductive element. The conductive element conducts electrical energy to the heating track to generate heat. However, due to the superior thermal conductivity of the conductive element, heat generated in the area of ​​the heating track electrically connected to the conductive element is easily conducted away by the conductive element. This results in a lower heating temperature in the area of ​​the aerosol-generating product corresponding to the conductive element, making it difficult to uniformly atomize the aerosol and hindering the improvement of the atomization effect of the heating element. To solve this problem, please refer to [link to relevant documentation]. Figure 1 and Figure 2 This application provides a heating element 10, an atomizer 100, and an aerosol generating device 1000.

[0037] Please see Figure 1 and Figure 2The aerosol generating apparatus 1000 provided in this application includes an atomizer 100. It is understood that the atomizer 100 is a structure in the aerosol generating apparatus 1000 used to heat the aerosol generating article 3000 so that the aerosol generating article 3000 generates aerosol.

[0038] The aerosol generating article 3000 is a processed product capable of generating aerosols under conditions such as heating, ultrasound, or mechanical vibration. The aerosol generating article 3000 can be in liquid, fully solid, or semi-solid form. 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 vapors.

[0039] Furthermore, in some embodiments, the aerosol generating device 1000 further includes a housing 500 and an electronic control assembly 300, both of which are disposed within the housing 500. The electronic control assembly 300 includes a power supply unit and a control unit. The power supply unit is electrically connected to the atomizer 100. 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 100.

[0040] Understandably, the housing 500 is a structure within the aerosol generating device 1000 that houses and protects the atomizer 100 and electronic control components 300. 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.

[0041] Specifically, when the aerosol generating device 1000 is being drawn in, the control unit can control the power supply unit to output electrical energy to the atomizer 100. In this case, the atomizer 100 can heat and atomize the aerosol generating product 3000 to generate aerosol. When the aerosol generating device 1000 is not being drawn in, the control unit can control the power supply unit to stop supplying electrical energy to the atomizer 100. In this case, the atomizer 100 will not heat the aerosol generating product 3000. It should be noted that in some embodiments, the power supply unit can be a dry cell battery or a rechargeable battery; rechargeable batteries include, but are not limited to, lithium-ion batteries, nickel-metal hydride batteries, and nickel-cadmium batteries.

[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 2 and Figure 3 The atomizer 100 provided in this application includes a heating element 10. Specifically, in some embodiments, the atomizer 100 further includes an atomizing seat 30, which has a receiving cavity 31 for receiving the heating element 10. When the aerosol generating article 3000 is inserted into the receiving cavity 31, the heating element 10 can heat the aerosol generating article 3000 to generate aerosol.

[0044] It is understood that the cross-sectional shape of the accommodating cavity 31 includes, but is not limited to, regular or irregular shapes such as square, circle, and triangle. In some embodiments of this application, the cross-section (including shape and size) of the accommodating cavity 31 is substantially the same as the cross-section (including shape and size) of the aerosol generating article 3000, which can improve the stability of the aerosol generating article 3000 in the accommodating cavity 31. For example, when the cross-sectional shape of the aerosol generating article 3000 is circular, the cross-sectional shape of the accommodating cavity 31 is also circular, and the cross-sectional dimensions of the accommodating cavity 31 are substantially the same as the cross-sectional dimensions of the aerosol generating article 3000.

[0045] 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.

[0046] Please see Figure 3 and Figure 4The heating element 10 of this application includes a substrate 11, at least two heating tracks 13, and at least two first conductive elements 15. The substrate 11 includes a first end 111 and a second end 113 opposite each other in the axial direction X. The substrate 11 has a hollow heating space 115 along the axial direction X, which is used to receive the aerosol-generated product 3000. The main body portions of the at least two heating tracks 13 are sequentially disposed on the substrate 11 along the axial direction X. Each heating track 13 includes a heating part 131 and a first connecting part 133 connected to one end of the heating part 131. Each first connecting part 133 bends and extends from the corresponding heating part 131 and surrounds a semi-enclosed heating area 1330. The at least two first conductive elements 15 are respectively electrically connected to the first connecting parts 133 that form the heating area 1330 in the at least two heating tracks 13, and the at least two first conductive elements 15 are electrically isolated from each other.

[0047] It is understood that the substrate 11 is the structure in the heating element 10 used to mount elements such as the heating trajectory 13. The material of the substrate 11 includes, but is not limited to, plastics, glass, ceramics, and metals. The outer contour shape of the substrate 11 may include, but is not limited to, cylinders, cubes, cuboids, triangular prisms, and hexagonal prisms. In some embodiments of this application, the substrate 11 includes opposing first ends 111 and second ends 113, and a heating space 115 penetrating through the first ends 111 and second ends 113. The heating space 115 is used to accommodate at least a portion of the aerosol generating article 3000, thus enabling the heating element 10 to heat the aerosol generating article 3000 using a circumferential heating method. It should be noted that in some embodiments, one end of the aerosol generating article 3000 can be inserted into the heating space 115 from the first end 111 of the substrate 11, and the opposite end of the aerosol generating article 3000 is used for user inhalation.

[0048] The heating trajectory 13 is a structure in the heating element 10 used to heat the aerosol generating product 3000. The heating trajectory 13 includes, but is not limited to, heating circuits, heating films, heating plates, heating wires, and heating meshes. The heating trajectory 13 can be made of at least one of the following materials with appropriate impedance: metallic materials, metal alloys, graphite, carbon, conductive ceramics, tin-antimony oxide, other ceramic materials, and composite materials of metallic materials. Suitable metallic or alloy materials include at least one of the following: 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.

[0049] Furthermore, the materials of at least two heating tracks 13 may be the same or different. The fact that at least two heating tracks 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 tracks 13.

[0050] In some embodiments, the heating element 10 further includes an infrared material disposed on the substrate 11, and the heating track 13 is connected to the infrared material. When the heating track 13 is powered to generate heat, the heat of the heating track 13 can act on the infrared material. In this case, the infrared material can generate infrared radiation to heat the aerosol generating article 3000. It should be noted that when the heating element 10 includes an infrared material, the substrate 11 can be made of a light-transmitting material. For example, the substrate 11 can be made of transparent ceramic (aluminum oxide).

[0051] In some embodiments of the present application, the first connecting portion 133 can be bent and extended in multiple segments from one end of the heating portion 131 to form a semi-closed heating area 1330. That is, the first connecting portion 133 is a multi-segment bending structure, and the first connecting portion 133 can surround and form a semi-closed heating area 1330. Thus, compared with the case where the first connecting portion 133 does not form a semi-closed heating area 1330, for example, compared with the first connecting portion 133 extending linearly away from the heating portion 131, the first connecting portion 133 can generate more heat in a smaller space, so that the heating temperature of the aerosol generating article 3000 by the heating track 13 is less affected by the first conductive member 15, and thus it can ensure the uniform atomization of the aerosol generating article 3000 and improve the atomization effect. It should be noted that in some embodiments, the semi-closed heating area 1330 can be generally in the shape of an "O" or a "hui" character, etc.

[0052] The first conductive member 15 is a structure in the heating element 10 for realizing the conductive function. The first conductive member 15 can include, but is not limited to, wire harnesses, leads, copper bars, etc. The lead can be made of at least one of conductive materials such as silver, copper, aluminum, nickel-iron alloy, gold, copper alloy, etc. Exemplarily, the first conductive member 15 can be made of silver, so that the first conductive member 15 has a relatively high thermal conductivity, that is, the first conductive member 15 has better thermal conductivity. Among them, the plurality of first conductive members 15 are electrically isolated from each other, that is, the plurality of first conductive members 15 are spaced apart from each other and no circuit connection is formed, so that the control unit can separately control the working state of each heating track 13, so that the heating track 13 can work independently.

[0053] Furthermore, in some embodiments, each heating trajectory 13 further includes a second connecting portion 135 connected to the other end of the heating element 131, and at least two second connecting portions 135 of at least two heating trajectories 13 are electrically connected to each other by a second conductive member 17. That is, the second connecting portion 135 and the first connecting portion 133 are respectively connected to opposite ends of the heating element 131, and the second conductive member 17 is electrically connected to the second connecting portions 135 of at least two heating trajectories 13. Specifically, when the heating trajectory 13 is energized, the heating element 131, the second connecting portion 135, and the first connecting portion 133 can all generate heat to heat the atomized aerosol generating article 3000.

[0054] The second conductive element 17 is a structure in the heating element 10 used to connect the power supply unit and the heating trajectory 13. The second conductive element 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 silver, copper, aluminum, nickel-iron alloy, gold, and copper alloy. For example, the second conductive element 17 may be made of silver, thus giving it a high thermal conductivity, i.e., better thermal conductivity. In some embodiments of this application, when both the first conductive element 15 and the second conductive element 17 are electrically connected to the power supply unit and the heating trajectory 13, the electrical energy of the power supply unit can be transferred to the heating trajectory 13 through the second conductive element 17 to generate heat in the heating trajectory 13. The first conductive element 15 can transfer the electrical energy in the heating trajectory 13 back to the power supply unit. Thus, the arrangement of the first conductive element 15 and the second conductive element 17 enables the power supply unit and the heating trajectory 13 to form a complete circuit, thereby ensuring the normal operation of the heating element 10. In this embodiment, at least two heating tracks 13 share a second conductive element 17. Thus, compared to each heating track 13 corresponding to a second conductive element 17, the number of second conductive elements 17 is less. This can improve the assembly efficiency of the heating element 10 on the one hand, and reduce the space occupied by the heating element 10 on the other hand, which is conducive to the miniaturization of the heating element 10.

[0055] In some embodiments, the second conductive element 17 (the end of the second conductive element 17 connected to the second connecting portion 135) is located in the middle region between the first end 111 and the second end 113, and each first connecting portion 133 is adjacent to the corresponding heating portion 131.

[0056] For example, in the case where there are at least two heating tracks 13 including three, the projection of the second connecting portion 135 of the heating track 13 near the first end 111 on the projection plane (a plane parallel to the axial direction X and perpendicular to the substrate 11) is spaced apart from the projection of the middle heating track 13 on the projection plane; the projection of the second connecting portion 135 of the heating track 13 near the second end 113 on the projection plane is at least partially overlapped with the projection of the middle heating track 13 on the projection plane, thereby making the second conductive element 17 located in the middle region between the first end 111 and the second end 113, each first connecting portion 133 being adjacent to the corresponding heating portion 131, and when the heating track 13 near the second end 113 is heated, the heating track 13 near the second end 113 can also heat the position on the aerosol generating article 3000 corresponding to the middle heating track 13, thereby ensuring the uniformity of the temperature field and ensuring the consistency of the suction taste.

[0057] Specifically, when the heating element 10 is operating, at least one of the at least two heating tracks 13 heats up to heat the aerosol generating product 3000. That is, when the aerosol generating device 1000 is being drawn in, the control unit can control the power supply unit to transmit electrical energy to at least one of the at least two heating tracks 13, so that at least one heating track 13 can heat up to heat the aerosol generating product 3000. This increases the number of power levels of the heating element 10, effectively meeting the user's needs. Furthermore, when at least two heating tracks 13 heat up to heat the aerosol generating product 3000, the control unit can regulate the energy ratio of the at least two heating tracks 13, so that the energy of each heating track 13 can be adjusted according to the usage status of the aerosol generating product 3000, thereby improving the user experience.

[0058] In the heating element 10 of this application embodiment, each segment of the heating trajectory 13 includes a heating part 131 and a first connecting part 133. The first connecting part 133 extends from the heating part 131 in a bend and surrounds a semi-enclosed heating area 1330. Thus, compared to the first connecting part 133 not forming a semi-enclosed heating area 1330, for example, compared to the first connecting part 133 extending straight from the end of the heating part 131, the first connecting part 133 can gather more heat in a smaller area. This makes the heating temperature of the aerosol generating product 3000 less affected by the first conductive element 15, improves the uniformity of the surrounding temperature field, and thus ensures uniform atomization of the aerosol generating product 3000, improves the atomization effect, and effectively meets the user's needs.

[0059] The heating element 10 will be further explained below with reference to the accompanying drawings.

[0060] Please see Figure 4 and Figure 5 , in combination with Figure 6 or Figure 7 , in some embodiments, the first connecting portion 133 includes a first bent segment 1331 and a second bent segment 1334. The first bent segment 1331 extends in a bent manner away from the end of the heating portion 131 in a direction away from the heating portion 131. The second bent segment 1334 extends in a bent manner from the end of the first bent segment 1331 in a direction towards the heating portion 131, and the free end of the second bent segment 1334 is spaced apart from the heating portion 131 and the first bent segment 1331.

[0061] Specifically, in some embodiments, the first bent segment 1331 may extend obliquely and bent away from the end of the heating portion 131 in a direction away from the heating portion 131, and the second bent segment 1334 may extend in a bent manner from the end of the first bent segment 1331 (the end of the first bent segment 1331 away from the heating portion 131) in a direction towards the heating portion 131, and the free end of the second bent segment 1334 (i.e., the end of the second bent segment 1334 away from the first bent segment 1331) is spaced apart from both the heating portion 131 and the first bent segment 1331. Thus, the first bent segment 1331 and the second bent segment 1334 can jointly form a semi-closed heating region 1330, so that the first connecting portion 133 can generate more heat in a smaller area, reduce the influence of the first conductive member 15 on the heat generated by the heating track 13, ensure that the aerosol generating article 3000 can be uniformly heated, and improve the atomization effect.

[0062] It should be noted that, in some embodiments, the shape of the first bent segment 1331 may be at least one of a straight line shape, a curved line shape, a multi-segment straight line shape, a multi-segment curved line shape, etc.; the shape of the second bent segment 1334 may be at least one of a straight line shape, a curved line shape, a multi-segment straight line shape, a multi-segment curved line shape, etc. For example, the shape of the first bent segment 1331 is a curved line shape, and the shape of the second bent segment 1334 is also a curved line shape. In this way, the first bent segment 1331 and the second bent segment 1334 can jointly form an O-shaped semi-closed heating region 1330; for another example, the shape of the first bent segment 1331 is an L shape, and the shape of the second bent segment 1334 is also an L shape. In this way, the first bent segment 1331 and the second bent segment 1334 can jointly form a semi-closed heating region 1330 in the shape of a "hui" character.

[0063] In some embodiments, the first conductive element 15 is electrically connected to the free end of the second bent segment 1334. If the free end of the second bent segment 1334 is connected to the heating element 131 and / or the first bent segment 1331, then when the first conductive element 15 is electrically connected to the free end of the second bent segment 1334, the current will flow directly to the first conductive element 15 through the heating element 131 or the first bent segment 1331. That is, the current will not flow on the second bent segment 1334, resulting in less heat generated by the first connection portion 133. The first conductive element 15 has a greater influence on the heating temperature of the heating trajectory 13, which is detrimental to improving the atomization effect. In some embodiments of this application, the free end of the second bending segment 1334 is spaced apart from the heating part 131 and the first bending segment 1331. Thus, when the first conductive member 15 is electrically connected to the free end of the second bending segment 1334, the current can flow through the heating part 131, the first bending segment 1331 and the second bending segment 1334 in sequence to the first conductive member 15. This increases the heat generated by the first connection part 133, thereby making the heating temperature of the aerosol generating product 3000 less affected by the first conductive member 15, ensuring uniform atomization of the aerosol generating product 3000 and improving the atomization effect.

[0064] Furthermore, please combine Figure 6 or Figure 7 In some embodiments, the first bending segment 1331 includes a first sub-segment 1332 and a second sub-segment 1333. The first sub-segment 1332 extends obliquely from the end of the heating part 131 along a first direction A, and the second sub-segment 1333 extends obliquely from the end of the first sub-segment 1332 in a direction away from the heating part 131. The second bending segment 1334 includes a third sub-segment 1335 and a fourth sub-segment 1336. The third sub-segment 1335 extends obliquely from the end of the second sub-segment 1333 along a second direction B, and the fourth sub-segment 1336 extends obliquely from the end of the third sub-segment 1335 in a direction towards the heating part 131. The first direction A and the second direction B are opposite. It should be noted that in some embodiments, the first direction A can be any direction that forms a certain angle (greater than 0° and less than 180°) with respect to the end of the heating part 131.

[0065] Specifically, in some embodiments, the first sub-segment 1332 extends from the end of the heating part 131 at a certain angle, the second sub-segment 1333 extends from the end of the first sub-segment 1332 (the end of the first sub-segment 1332 away from the heating part 131) in a direction away from the heating part 131, and there is a certain angle (greater than 0° and less than 180°) between the first sub-segment 1332 and the second sub-segment 1333; the third sub-segment 1335 extends from the end of the second sub-segment 1333 (the end of the second sub-segment 1333 away from the first sub-segment 1332) at a certain angle, and the fourth sub-segment 1336 extends from the end of the third sub-segment 1335 (the side of the third sub-segment 1335 away from the second sub-segment 1333) in the direction of the heating part 131, and there is a certain angle (greater than 0° and less than 180°) between the third sub-segment 1335 and the fourth sub-segment 1336. Thus, the first sub-segment 1332, the second sub-segment 1333, the third sub-segment 1335 and the fourth sub-segment 1336 can jointly form a semi-closed heating area 1330.

[0066] In addition, since the third sub-segment 1335 extends from the end of the second sub-segment 1333 along the second direction B, the fourth sub-segment 1336 extends obliquely from the end of the third sub-segment 1335 in the direction of the heating part 131, and the first direction A and the second direction B are opposite, the semi-closed heating area 围成的半封闭的发热区域1330较小,从而使得第一连接部133产生的热量更为集中,进一步降低第一导电件15对发热轨迹13产生的温度的影响,确保气溶胶生成制品3000能够被均匀雾化,提升雾化效果。

[0067] It should be noted that in some embodiments of the present application, the first direction A may be perpendicular to the extension direction C of the end of the heating part 131, the angle between the first sub-segment 1332 and the second sub-segment 1333 is 90°, and the angle between the third sub-segment 1335 and the fourth sub-segment 1336 is 90°. Thus, the first sub-segment 1332, the second sub-segment 1333, the third sub-segment 1335 and the fourth sub-segment 1336 can jointly form a semi-closed heating area 1330 in the shape of a "hui" character.

[0068] Furthermore, please refer to Figure 8 In some embodiments, the first connecting portion 133 further includes a third bending segment 1337. The third bending segment 1337 extends from the free end of the second bending segment 1334 towards the inside of the heating area 1330, and the end of the third bending segment is spaced from the heating part 131, the first bending segment 1331 and the second bending segment 1334.

[0069] Specifically, in some embodiments, the third segment 1335 bends and extends at a certain angle from the free end of the second bent segment 1334 toward the interior of the heating region 1330. This reduces the opening size of the heating region 1330, increases the length of the first connecting portion 133, and further increases the heat generation of the first connecting portion 133. Consequently, the heating trajectory 13 has less influence on the heating temperature of the aerosol generating product 3000 due to the first conductive element 15, thereby ensuring uniform atomization of the aerosol generating product 3000, improving the atomization effect, and effectively meeting the user's needs. It should be noted that in this embodiment, the first conductive element 15 can be electrically connected to the free end of the third bent segment 1337.

[0070] In some embodiments, the angle between the free ends of the third bending segment 1337 and the second bending segment 1334 is [45°, 75°]. Specifically, the angle between the free ends of the third bending segment 1337 and the second bending segment 1334 is the angle between the fourth sub-segment 1336 of the third bending segment 1337 and the second bending segment 1334. It should be noted that in some embodiments, the angle between the free ends of the third bending segment 1337 and the second bending segment 1334 is any one of 45°, 50°, 55°, 60°, 65°, 70°, and 75°, or any value between any two of these values. Preferably, the angle between the free ends of the third bending segment 1337 and the second bending segment 1334 is 60°.

[0071] Please see Figure 4 and Figure 5 In some embodiments, at least two heating tracks 13 include a first heating track 137 and a second heating track 139, with the main body portion of the first heating track 137 and the main body portion of the second heating track 139 spaced apart along the axial direction X on the substrate 11. Thus, the first heating track 137 and the second heating track 139 can respectively correspond to different regions of the aerosol-generating article 3000, thereby enabling the electronic control component 300 ( Figure 1 As shown, the energy ratio of the first heating trajectory 137 and the second heating trajectory 139 can be independently controlled to achieve segmented temperature adjustment, thereby improving the atomization effect and meeting different user needs.

[0072] It should be noted that, in some embodiments, the first heating trajectory 137 and the second heating trajectory 139 are arranged at intervals along the axial direction X, which may include: the first heating trajectory 137 and the second heating trajectory 139 being stacked and having a certain interval distance along the axial direction X; or, along the axial direction X of the heating trajectory 13, the heating part 131 and the first connecting part 133 of the first heating trajectory 137 and the heating part 131 and the first connecting part 133 of the second heating trajectory 139 being stacked and having a certain interval distance, and the projection of the second connecting part 135 of the second heating trajectory 139 on the projection plane (a plane parallel to the axial direction X and perpendicular to the base 11) coincides with the projection of the first heating trajectory 137 on the projection plane.

[0073] In some embodiments of this application, for the first heating trajectory 137 ( Figure 6 As shown), the first direction A can be the direction from the second heating trajectory 139 to the first heating trajectory 137, and the first direction A is parallel to the axis X; for the second heating trajectory 139 ( Figure 7 As shown), the first direction A can be the direction from the first heating trajectory 137 to the second heating trajectory 139, and the second direction B is parallel to the axis X.

[0074] Please see Figure 4 and Figure 5 and combined Figure 6 , Figure 7 or Figure 8 In some embodiments, the width of the first connecting portion 133 gradually decreases in the direction extending from the corresponding heating portion 131 toward the end (i.e., the free end of the first connecting portion 133). That is, when the first connecting portion 133 includes a first sub-segment 1332, a second sub-segment 1333, a third sub-segment 1335, and a fourth sub-segment 1336, the average width of the first sub-segment 1332, the second sub-segment 1333, the third sub-segment 1335, and the fourth sub-segment 1336 gradually decreases.

[0075] It should be noted that the formula for calculating resistance... (ρ is the resistivity of the first connecting portion 133, L is the length of the first connecting portion 133, and A is the cross-sectional area of ​​the first connecting portion 133.) It can be seen that the smaller the width of the first connecting portion 133, the smaller the cross-sectional area of ​​the first connecting portion 133 (equal to the width of the first connecting portion 133 * the thickness of the first connecting portion 133), and the greater the resistance of the first connecting portion 133, which will lead to a higher temperature of the first connecting portion 133. Therefore, in some embodiments of this application, the width of the first connecting portion 133 gradually decreases from the corresponding heating portion 131 towards the end. That is, the temperature of the free end of the first connecting portion 133 (the end of the fourth sub-segment 1336 away from the third sub-segment 1335) is the highest. Thus, when the free end of the first connecting portion 133 is electrically connected to the first conductive element 15, the heating temperature of the aerosol generating product 3000 by the heating trajectory 13 is less affected by the first conductive element 15, thereby ensuring uniform atomization of the aerosol generating product 3000 and improving the atomization effect.

[0076] It is understood that in other embodiments, the width of the first connecting portion 133 extending from the corresponding heating portion 131 toward the end can be the same everywhere; or, the width of the first connecting portion 133 extending from the corresponding heating portion 131 toward the end can vary irregularly (for example, the width of the first connecting portion 133 first decreases and then increases; for another example, the width of the first connecting portion 133 first decreases and then remains unchanged; for yet another example, the width of the first connecting portion 133 first increases and then decreases and then remains unchanged).

[0077] Please see Figure 4 and Figure 5 In some embodiments, the projected height of the main body portion of the heating trajectory 13 adjacent to the first end 111 in the axial X direction is less than the projected height of the main body portion of the adjacent heating trajectory 13 in the axial X direction.

[0078] Specifically, in some embodiments, the first end 111 of the substrate 11 is closer to the cooling element 3300 than the second end 113 of the substrate 11. As a result, when the heating trajectory 13 near the first end 111 heats up, the heat of the heating trajectory 13 is more concentrated, which allows the aerosol generating article 3000 to heat up quickly and generate a sufficient amount of aerosol. This avoids the problem of insufficient aerosol volume during the user's initial inhalation (e.g., the first inhalation), thereby improving the user's inhalation experience.

[0079] In some embodiments, when at least two heating tracks 13 include a first heating track 137 and a second heating track 139, there are two first heating tracks 137. In the axial direction X, the interval between the two first heating tracks 137 is smaller than the interval between the second heating track 139 and an adjacent first heating track 137. It should be noted that in some embodiments, in the direction perpendicular to the axial direction X, the side of the first connecting portion 133 of the at least two heating tracks 13 that is away from the heating portion 131 is flush. Furthermore, in the axial direction X, the interval between the two first heating tracks 137 can be the minimum interval between the first connecting portions 133 of the two first heating tracks 137; the interval between the second heating track 139 and an adjacent first heating track 137 can be the minimum interval between the first connecting portion 133 of the second heating track 139 and the first connecting portion 133 of the adjacent first heating track 137.

[0080] Specifically, in some embodiments, the first heating trajectory 137 includes two trajectories, and the interval between the two first heating trajectories 137 in the axial direction X is small. This allows the heat generated by the two first heating trajectories 137 to couple, making the heat more concentrated and ensuring that the aerosol generating product 3000 can quickly heat up and generate a sufficient amount of aerosol. This is beneficial for achieving a large amount of vapor in the first puff and improving the vaping experience. Furthermore, the second heating trajectory 139, in conjunction with the adjacent first heating trajectory 137, ensures the consistency of subsequent aerosol generation, minimizing attenuation and guaranteeing the user's vaping experience.

[0081] It should be noted that, in some embodiments, the interval between the two first heating tracks 137 in the axial direction X is greater than or equal to 0.67 mm and less than or equal to 0.77 mm. That is, the interval between the two first heating tracks 137 can be any one of 0.67 mm, 0.68 mm, 0.60 mm, 0.70 mm, 0.71 mm, 0.72 mm, 0.73 mm, 0.74 mm, 0.75 mm, 0.76 mm, and 0.77 mm, or any value between any two of these values. Preferably, the interval between the two first heating tracks 137 is 0.72 mm.

[0082] Along the axial direction X, the interval between the second heating trajectory 139 and the adjacent first heating trajectory 137 is greater than or equal to 1.07 mm and less than or equal to 1.18 mm. That is, the interval between the second heating trajectory 139 and the adjacent first heating trajectory 137 can be any one value or any value between any two of 1.07 mm, 1.08 mm, 1.09 mm, 1.10 mm, 1.11 mm, 1.12 mm, 1.13 mm, 1.14 mm, 1.15 mm, 1.16 mm, 1.17 mm, and 1.18 mm. Preferably, the interval between the second heating trajectory 139 and the adjacent first heating trajectory 137 is 1.13 mm.

[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 matrix includes a first end and a second end opposite each other in the axial direction, the matrix having a hollow heating space along the axial direction, the heating space being used to receive aerosol-generated articles; At least two heating tracks are provided, with the main body portions of the at least two heating tracks sequentially arranged axially on the substrate. Each heating track includes a heating element and a first connecting portion connected to one end of the heating element. Each first connecting portion extends from the corresponding heating element and forms a semi-enclosed heating area. At least two first conductive elements are electrically connected to the first connection portion that forms the heating area in at least two heating trajectories, and the at least two first conductive elements are electrically isolated from each other.

2. The heating element according to claim 1, characterized in that, The first connecting part includes: The first bending segment extends from the end of the heating element in a direction away from the heating element; and The second bending segment extends from the end of the first bending segment toward the heating element, and the free end of the second bending segment is spaced apart from the heating element and the first bending segment.

3. The heating element according to claim 2, characterized in that, The first bending segment includes a first sub-segment and a second sub-segment. The first sub-segment extends obliquely in a first direction from the end of the heating element, and the second sub-segment extends obliquely in a direction away from the heating element from the end of the first sub-segment. The second bending segment includes a third sub-segment and a fourth sub-segment. The third sub-segment bends and extends from the end of the second sub-segment along a second direction, and the fourth sub-segment bends and extends obliquely from the end of the third sub-segment toward the heating part. The first direction and the second direction are opposite.

4. The heating element according to claim 2, characterized in that, The first connecting part further includes: The third bending segment extends from the free end of the second bending segment toward the interior of the heating area, and the end of the third bending segment is spaced apart from the heating part, the first bending segment, and the second bending segment.

5. The heating element according to claim 4, characterized in that, The angle between the free end of the third bending segment and the second bending segment is [45°, 75°].

6. The heating element according to claim 1, characterized in that, Each segment of the heating trajectory also includes a second connecting portion connected to the other end of the heating element. At least two of the second connecting portions of at least two heating trajectories are electrically connected to each other by a second conductive element. The second conductive element is located in the middle region between the first end and the second end. Each first connecting portion is adjacent to the corresponding heating element.

7. The heating element according to claim 1, characterized in that, The width of the first connecting portion gradually decreases from the corresponding heating portion in the direction of extension to the end.

8. The heating element according to claim 6, characterized in that, The axial projection height of the main body portion of the heating trajectory adjacent to the first end is less than the axial projection height of the main body portion of the adjacent heating trajectory.

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

10. An aerosol generating device, characterized in that, include: The atomizer according to claim 9.

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