Heating element, atomizing core, aerosol bomb and aerosol device

Abstract

The utility model relates to the field of aerosol devices, and discloses a heating body, an atomizing core, an aerosol bomb and an aerosol device. The heating body comprises a first conductive section, a second conductive section and a heating section. The second conductive section and the first conductive section are arranged at an interval, and the heating section is arranged between the first conductive section and the second conductive section. The heating section comprises a plurality of heating parts which are sequentially arranged in the first direction and sequentially connected in an end-to-end mode. A reference surface is arranged between the first conductive section and the second conductive section, and the heating section is symmetrical about the reference surface. An area between the first conductive section and the reference surface is divided into at least two heating areas, any two heating areas are a first heating area and a second heating area, and the second heating area is located between the first heating area and the reference surface. The volume of any heating part located in the first heating area is smaller than that of any heating part located in the second heating area. The consistency of the temperature of the two ends of the heating body and the temperature of the middle position can be improved, so that the atomization effect is improved.

Description

Technical Field

[0001] The present application relates to the field of aerosol devices, and more particularly, to a heating element, an atomization core, an aerosol cartridge, and an aerosol device. Background Art

[0002] An aerosol device is a device that heats an aerosol matrix through a heating element to generate an aerosol. When the heating element is powered on and generates heat, since both ends of the heating element are connected to electrodes, a part of the heat generated at both ends of the heating element is dissipated through the electrodes, resulting in the temperature at both ends of the heating element being lower than the temperature at the middle position of the heating element, causing the temperature at the middle position of the heating element to be higher than the atomization temperature of the aerosol matrix or the temperature at both ends of the heating element to be lower than the atomization temperature of the aerosol matrix, thus affecting the atomization effect. Summary of the Utility Model

[0003] In view of this, the present application provides a heating element to improve the atomization effect.

[0004] An embodiment of the present application provides a heating element, including a first conductive section, a second conductive section, and a heating section. The second conductive section is spaced apart from the first conductive section, and the direction from the first conductive section to the second conductive section is defined as the positive direction of the first direction. The heating section is disposed between the first conductive section and the second conductive section. The heating section includes a plurality of heating parts, and the plurality of heating parts are arranged in sequence along the first direction and are connected end to end in sequence. The heating part at one end of the heating section is electrically connected to the first conductive section, and the heating part at the other end of the heating section is electrically connected to the second conductive section. The heating part is configured to heat the aerosol matrix.

[0005] There is a reference plane between the first conductive section and the second conductive section, and the distance between the first conductive section and the reference plane is equal to the distance between the second conductive section and the reference plane. The heating section is symmetric about the reference plane.

[0006] The region between the first conductive section and the reference plane is divided into at least two heating zones, and each heating zone includes at least one heating part in one heating section. Define any two heating zones as the first heating zone and the second heating zone respectively, and the second heating zone is located between the first heating zone and the reference plane. The volume of any heating part located in the first heating zone is smaller than the volume of any heating part located in the second heating zone.

[0007] In the above embodiments, since several heating parts are arranged in sequence along the first direction and connected end to end, when the volume of any heating part in the first heating area is smaller than that of any heating part in the second heating area, the resistance of any heating part in the first heating area is greater than that of any heating part in the second heating area, or the distribution density of the heating parts in the first heating area is greater than that of the heating parts in the second heating area. As a result, the calorific value of the part of the heating section in the first heating area is greater than that of the part of the heating section in the second heating area. Overall, the calorific value of the parts at both ends of the heating section is greater than that of the part at the middle position of the heating section. After part of the heat at both ends of the heating section is dissipated by the electrodes, the temperatures at both ends of the heating element can tend to be consistent with the temperature at the middle position, and the temperatures at both ends and the middle position of the heating element can reach the atomization temperature of the aerosol matrix simultaneously, thereby improving the atomization effect.

[0008] In some embodiments of the present application, the average cross-sectional area of any heating part in the first heating area is smaller than the average cross-sectional area of any heating part in the second heating area, and / or the length of any heating part in the first heating area is smaller than the length of any heating part in the second heating area.

[0009] In the above embodiments, the volume of the heating part is positively correlated with both its cross-sectional area and length, that is, the smaller the cross-sectional area or length of the heating part, the smaller the volume of the heating part. When the average cross-sectional area of the heating part is small, the resistance of the heating part is large and the calorific value of the heating part is large. Or when the length of the heating part is small, in the same-sized area, the distribution density of the heating parts with smaller lengths is greater, and the calorific value of the corresponding area is greater.

[0010] In some embodiments of the present application, a plurality of heating sections are arranged at intervals along the second direction, and the second direction intersects the first direction.

[0011] In the above embodiments, arranging a plurality of heating sections along the second direction can expand the heating area of the heating element to increase the contact area between the heating element and the aerosol matrix, thereby improving the efficiency of the heating element in heating the aerosol matrix.

[0012] In some embodiments of the present application, the heating section further includes an intermediate bridge. The intermediate bridge is connected to the heating parts of the heating section, the intermediate bridge extends along the second direction towards the adjacent other heating section, and the intermediate bridge is configured to heat the aerosol matrix. A plurality of intermediate bridges of each heating section are arranged at intervals in sequence along the first direction.

[0013] In the above embodiments, the intermediate bridge can transfer the heat of the heating part and heat the aerosol matrix, so that the heat of the heating part is quickly transferred to the area between two adjacent heating sections, thereby further improving the uniformity of heat distribution and further improving the consistency of the temperatures at various parts of the heating element.

[0014] In some embodiments of the present application, between the first conductive segment and the reference plane, all the intermediate bridges aligned in the first direction are divided into at least two groups, and the number of intermediate bridges in each group is at least one. Define two of the groups as the first group and the second group respectively, with the second group located between the first group and the reference plane. The average cross-sectional area of any intermediate bridge in the first group is greater than the average cross-sectional area of any intermediate bridge in the second group.

[0015] In the above embodiments, the average cross-sectional area of the intermediate bridges in the first group is greater than that of the intermediate bridges in the second group, such that the heat conduction performance of the intermediate bridges at both ends of the heating segment is higher than that of the intermediate bridges at the middle position of the heating segment. As a result, the heat of the intermediate bridges at both ends of the heating segment can be greater than that of the intermediate bridges at the middle position of the heating segment. After part of the heat of the intermediate bridges at both ends of the heating element is dissipated through the electrodes, the heat in the positive direction along the first direction between adjacent two heating segments can be evenly distributed, so that the temperatures at various positions of the heating element between adjacent two heating segments tend to be consistent.

[0016] In some embodiments of the present application, for two adjacent heating segments, define the average distance along the second direction between two heating portions aligned in the second direction in the first heating region as L1, and define the average distance along the second direction between two heating portions aligned in the second direction in the second heating region as L2. Between the first conductive segment and the reference plane, the average value of all L1s in the first heating region is less than the average value of all L2s in the second heating region.

[0017] In the above embodiments, for two adjacent heating segments, the portions of the two heating segments in the first heating region are relatively close to each other, and the portions of the two heating segments in the second heating region are relatively far from each other, such that the temperature regions of the heating element along the second direction are evenly distributed, which is beneficial to further improving the consistency of the temperatures at various positions of the heating element.

[0018] In some embodiments of the present application, the heating segment is provided with a heat conduction structure, and the heat conduction structure is configured to contact the aerosol matrix.

[0019] In the above embodiments, the heat of the heating segment is transferred to the aerosol matrix through the heat conduction structure, which is beneficial to improving the efficiency of the heating segment in heating the aerosol matrix.

[0020] In some embodiments of the present application, two adjacent heating portions are not on the same straight line.

[0021] In some embodiments of the present application, two adjacent heating portions are in a V shape or a J shape or an arc shape or a wavy shape.

[0022] In some embodiments of the present application, the heating element further includes a heat conduction bridge, the heat conduction bridge is connected to the heating segment, and the heat conduction bridge extends along the second direction. The heat conduction bridge is configured to heat the aerosol matrix.

[0023] In the above embodiments, the heat conduction bridge is used to transfer the heat of the heating section and heat the aerosol matrix, which can further improve the uniformity of the heat distribution of the heating element and the consistency of the temperatures at various positions of the heating element.

[0024] In some embodiments of the present application, the heating element is in a flat shape or a curved cylindrical shape.

[0025] An embodiment of the present application further provides an atomization core, including a guiding member and the heating element provided in any one of the above embodiments. The guiding member is in contact with the heating element and is configured to guide the aerosol matrix to flow towards the heating element.

[0026] An embodiment of the present application further provides an aerosol cartridge, including a housing body and the above atomization core. The atomization core is disposed in the housing body. The housing body is configured to accommodate the aerosol matrix, and the atomization core is configured to atomize the aerosol matrix in the housing body.

[0027] An embodiment of the present application further provides an aerosol device, including a power supply body and the above aerosol cartridge. The housing body of the aerosol cartridge is connected to the power supply body, and both the first conductive section and the second conductive section of the aerosol cartridge are electrically connected to the electrodes of the power supply body respectively.

[0028] In the above embodiments, the power supply body supplies power to the heating section through the first conductive section and the second conductive section, causing the heating section to generate heat. The heat generated by this heating section is evenly distributed, enabling the temperatures at both ends and the middle position of the heating element to reach the temperature for atomizing the aerosol matrix simultaneously, thereby being beneficial to improving the atomization effect. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of a heating element in an embodiment of the present application.

[0030] Figure 2 is a schematic structural diagram of a heating element in another embodiment of the present application.

[0031] Figure 3 is a schematic structural diagram of a heating element in another embodiment of the present application.

[0032] Figure 4 is a schematic structural diagram of a heating element in another embodiment of the present application.

[0033] Figure 5 is a schematic structural diagram of a heating element in another embodiment of the present application.

[0034] Figure 6 is a schematic structural diagram of a heating element in another embodiment of the present application.

[0035] Figure 7 is a schematic structural diagram of an atomization core in an embodiment of the present application.

[0036] Figure 8 It is a schematic structural diagram of the atomization core in another embodiment of the present application.

[0037] Description of main component symbols

[0038] Heating element 10

[0039] First conductive section 11

[0040] Second conductive section 12

[0041] Heating section 13

[0042] Heating part 131

[0043] Intermediate bridge 132

[0044] First group 1321

[0045] Second group 1322

[0046] Thermal conduction structure 133

[0047] Reference plane 14

[0048] Heating area 15

[0049] First heating area 151

[0050] Second heating area 152

[0051] Thermal conduction bridge 16

[0052] Positive electrode connector 17

[0053] Negative electrode connector 18

[0054] Atomization core 20

[0055] Guide part 21

[0056] First direction X

[0057] Second direction Y

[0058] The following specific embodiments will further illustrate the present application in combination with the above-mentioned drawings. Specific embodiments

[0059] Next, the technical solutions in the embodiments of the present application will be described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the description of this application herein are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0061] The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0062] In addition, terms such as "first", "second", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "average cross-sectional area of the heating part" refers to the average value of the cross-sectional areas at both ends and the middle position of the heating part. The term "average cross-sectional area of the intermediate bridge" refers to the average value of the cross-sectional areas at both ends and the middle position of the intermediate bridge. The term "average distance between two heating parts in the second direction" refers to the average value of the maximum distance and the minimum distance between two heating parts in the second direction.

[0063] An aerosol device is a device that heats an aerosol matrix through a heating element to generate an aerosol. Only after the heating element reaches the atomization temperature of the aerosol matrix can the aerosol matrix be fully atomized. For example, for some aerosol matrices, their atomization temperature is 220 degrees Celsius to 280 degrees Celsius; when the temperature of the heating element is lower than this atomization temperature, it is difficult for the aerosol matrix to be atomized, and when the temperature of the heating element is higher than this atomization temperature, it is easy to cause the aerosol matrix to be overheated and dry-burn, and carbon deposition will occur on the surface of the heating element.

[0064] When the heating element is energized and generates heat, since both ends of the heating element are connected to the electrodes, a part of the heat generated at both ends of the heating element is dissipated through the electrodes, resulting in the temperature at both ends of the heating element being lower than the temperature at the middle position of the heating element. It is easy to cause the temperature at the middle position of the heating element to be higher than the atomization temperature of the aerosol matrix or the temperature at both ends of the heating element to be lower than the atomization temperature of the aerosol matrix, thus affecting the atomization effect of the aerosol matrix.

[0065] An embodiment of this application provides a heating element, which includes a first conductive section, a second conductive section, and a heating section. The second conductive section is arranged at an interval from the first conductive section, and the direction from the first conductive section to the second conductive section is defined as the positive direction of the first direction. The heating section is arranged between the first conductive section and the second conductive section. The heating section includes a plurality of heating parts, and the plurality of heating parts are arranged in sequence along the first direction and are connected end to end in sequence. The heating part at one end of the heating section is electrically connected to the first conductive section, and the heating part at the other end of the heating section is electrically connected to the second conductive section.

[0066] There is a reference plane between the first conductive section and the second conductive section, and the distance between the first conductive section and the reference plane is equal to the distance between the second conductive section and the reference plane. The heating section is symmetric about the reference plane.

[0067] Divide the region between the first conductive segment and the reference plane into at least two heating regions, and each heating region includes at least one heating portion in a heating segment. Define any two heating regions as a first heating region and a second heating region respectively, and the second heating region is located between the first heating region and the reference plane. The volume of any heating portion in the first heating region is smaller than the volume of any heating portion in the second heating region.

[0068] For such a heating element, since a number of heating portions are arranged in sequence along the first direction and are connected end to end, when the volume of any heating portion in the first heating region is smaller than the volume of any heating portion in the second heating region, the resistance of any heating portion in the first heating region is greater than the resistance of any heating portion in the second heating region, or the distribution density of the heating portions in the first heating region is greater than the distribution density of the heating portions in the second heating region, so that the heat generation amount of the part of the heating segment in the first heating region is greater than the heat generation amount of the part of the heating segment in the second heating region. Overall, the heat generation amount at both ends of the heating segment is greater than the heat generation amount at the middle position of the heating segment. After part of the heat at both ends of the heating segment is dissipated by the electrodes, the temperatures at both ends of the heating element can tend to be consistent with the temperature in the middle.

[0069] When the aforementioned heating element is applied to an atomization core, an aerosol cartridge, and an aerosol device, the temperatures at both ends and the middle position of the heating element can reach the atomization temperature of the aerosol matrix simultaneously, which can improve the atomization effect.

[0070] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0071] Refer to Figure 1 , an embodiment of the present application provides a heating element 10, and the heating element 10 is in a flat plate shape. The heating element 10 includes a first conductive segment 11, a second conductive segment 12, and a heating segment 13. The second conductive segment 12 is arranged at an interval from the first conductive segment 11, and the direction from the first conductive segment 11 to the second conductive segment 12 is defined as the positive direction of the first direction X. The heating segment 13 is arranged between the first conductive segment 11 and the second conductive segment 12. The heating segment 13 includes a number of heating portions 131, and the number of heating portions 131 are arranged in sequence along the first direction X and are connected end to end in sequence. The heating portion 131 at one end of the heating segment 13 is electrically connected to the first conductive segment 11, and the heating portion 131 at the other end of the heating segment 13 is electrically connected to the second conductive segment 12.

[0072] In some embodiments, two adjacent heating portions 131 are not on the same straight line. In some embodiments, a single heating portion 131 is linear, and two adjacent heating portions 131 are substantially V-shaped. In some other embodiments, a single heating portion 131 may be in a curved arc shape, and two adjacent heating portions 131 are substantially in a curved arc shape or a wavy shape. In some other embodiments, a single heating portion 131 may be in a stepped shape, and two adjacent heating portions 131 may be in a zigzag shape. In some other embodiments, one of the two adjacent heating portions 131 extends along the first direction X, and the other heating portion 131 of the two adjacent heating portions 131 is bent. In some other embodiments, the two adjacent heating portions 131 may also be in other shapes.

[0073] In some embodiments, several heating portions 131 of the heating section 13 are integrally formed. In some other embodiments, several heating portions 131 of the heating section 13 are welded to each other.

[0074] In some embodiments, both the first conductive section 11 and the second conductive section 12 are in a sheet shape, and both the first conductive section 11 and the second conductive section 12 are integrally formed with the heating portion 131. In some other embodiments, the first conductive section 11 or the second conductive section 12 is welded to the heating portion 131 at the corresponding end of the heating section 13.

[0075] In some embodiments, the average cross-sectional areas of both the first conductive section 11 and the second conductive section 12 are larger than the average cross-sectional area of any heating portion 131, so that the resistances of both the first conductive section 11 and the second conductive section 12 are smaller than the resistance of the heating portion 131, which can reduce the heat generation of the first conductive section 11 and the second conductive section 12, make the heat of the heating element 10 concentrate on the heating section 13, and thus make the heat concentrate on the area between the first conductive section 11 and the second conductive section 12.

[0076] In some embodiments, there is a reference plane 14 between the first conductive section 11 and the second conductive section 12. Along the first direction X, the distance between the first conductive section 11 and the reference plane 14 is equal to the distance between the second conductive section 12 and the reference plane 14 (the dotted lines closest to the first conductive section 11 and the second conductive section 12 and parallel to the reference plane 14 in the figure are respectively used to represent the boundaries of the first conductive section 11 and the second conductive section 12). The heating section 13 is symmetric about the reference plane 14. It can be understood that the reference plane 14 is a virtual plane, and the reference plane 14 divides the area between the first conductive section 11 and the second conductive section 12 into two heating zones 15 equally.

[0077] In some embodiments, the heating area 15 between the first conductive segment 11 and the reference surface 14 is divided into at least two heating areas (each dotted box in the figure represents a heating area), and any two heating areas are defined as a first heating area 151 and a second heating area 152, and the second heating area 152 is located between the first heating area 151 and the reference surface 14. It can be understood that the first heating area 151 and the second heating area 152 are not the definition of two fixed heating areas, but the definition of any two heating areas for comparison; illustratively, for three adjacent heating areas, the heating area located in the middle can be either the first heating area 151 or the second heating area 152.

[0078] In some embodiments, for two heating zones, the volume of any heating portion 131 of the heating segment 13 located in the first heating zone 151 is smaller than the volume of any heating portion 131 of the heating segment 13 located in the second heating zone 152 .

[0079] When the length of the heating portion 131 remains substantially unchanged, the volume of the heating portion 131 is positively correlated with the cross-sectional area of the heating portion 131. In some embodiments, the average cross-sectional area of any heating portion 131 located in the first heating zone 151 is smaller than the average cross-sectional area of any heating portion 131 located in the second heating zone 152. By making the average cross-sectional area of the heating portion 131 in the heating zone closer to the reference plane 14 larger, the resistance of the heating portion 131 in the middle of the heating segment 13 is smaller than the resistance of the heating portion 131 at both ends of the heating segment 13, so that the heat generated at both ends of the heating segment 13 can be greater than the heat generated in the middle of the heating segment 13. After part of the heat at both ends of the heating segment 13 is dissipated by the electrodes, the temperature at both ends of the heating segment 13 and the temperature in the middle of the heating segment 13 tend to be consistent, thereby improving the atomization effect.

[0080] In some embodiments, the average cross-sectional area of each heating portion 131 is equal among the multiple heating portions 131 in the same heating zone. In other embodiments, the average cross-sectional area of each heating portion 131 may be unequal among the multiple heating portions 131 in the same heating zone.

[0081] In some embodiments, the number of the heating portion 131 of a heating section 13 in a heating zone is at least one.

[0082] In some embodiments, the number of the heating parts 131 in the heating area closest to the first conductive segment 11 and the heating area closest to the reference plane 14 is one, and the number of the heating parts 131 in each of the other heating areas is two. In other embodiments, the number of the heating parts 131 in a single heating area can also be three or more.

[0083] In some embodiments, each heating portion 131 is in the form of a sheet, and the thickness of each heating portion 131 is equal. The difference in average cross-sectional area between the heating portions 131 is reflected by the difference in width of the heating portion 131 (dimensions d1 and d2 in the figure, d1 is smaller than d2). In other embodiments, the width of each heating portion 131 can be made the same, and the difference in average cross-sectional area between the heating portions 131 can be reflected by the difference in thickness of the heating portion 131. In other embodiments, the width and thickness of the two corresponding heating portions 131 can also be different, as long as the average cross-sectional area of the two heating portions 131 meets the requirements.

[0084] Reference Figure 1 In some embodiments, a plurality of heating segments 13 are provided at intervals along the second direction Y, and the second direction Y intersects the first direction X. The number of heating segments 13 provided along the second direction Y can expand the heating area of the heating element 10 and improve the efficiency of heating the aerosol substrate. In some embodiments, the second direction Y is perpendicular to the first direction X.

[0085] In some embodiments, the heating section 13 further includes an intermediate bridge 132. The intermediate bridge 132 is in the shape of an elongated strip, one end of the intermediate bridge 132 is connected to the heating portion 131 of the heating section 13, and the other end of the intermediate bridge 132 extends toward another adjacent heating section 13 along the second direction Y. In some embodiments, the intermediate bridge 132 is integrally formed with the heating portion 131 of the corresponding heating section 13. In other embodiments, the intermediate bridge 132 is welded to the corresponding heating portion 131.

[0086] In some embodiments, one end of the intermediate bridge 132 away from the self-heating segment 13 is connected to the intermediate bridge 132 of another adjacent heating segment 13 (the dotted line extending along the first direction X in the figure is used to separate the intermediate bridges 132 of two adjacent heating segments 13). In other embodiments, one end of the intermediate bridge 132 away from the self-heating segment 13 is spaced apart from the intermediate bridge 132 or the heating portion 131 of another adjacent heating segment 13.

[0087] In some embodiments, a plurality of intermediate bridges 132 of each heating segment 13 are sequentially arranged at intervals along the first direction X. The intermediate bridges 132 can transfer the heat of the heating portion 131 and heat the aerosol matrix, so that the heat of the heating portion 131 is quickly transferred to the area between two adjacent heating segments 13, thereby further improving the uniformity of heat distribution and further making the temperature between the first conductive segment 11 and the second conductive segment 12 tend to be consistent.

[0088] In some embodiments, the cross-sectional area of each intermediate bridge 132 along its extension trajectory is equal, and along the first direction X, the average cross-sectional area of any intermediate bridge 132 is equal to the average cross-sectional area of another adjacent intermediate bridge 132 .

[0089] Referring to Figure 1 , the heating element 10 further includes a heat conduction bridge 16. In some embodiments, the heat conduction bridge 16 is located at the end of the heating element 10 along the second direction Y. One end of the heat conduction bridge 16 is connected to the heating part 131 of the heating section 13 at the corresponding position, and the other end of the heat conduction bridge 16 extends along the second direction Y away from the corresponding heating part 131. The heat conduction bridge 16 is used to transfer the heat of the heating part 131 and heat the aerosol matrix to further expand the heating area of the heating element 10. In other embodiments, the heat conduction bridge 16 can be arranged between two adjacent heating sections 13, and the heat conduction bridge 16 is connected to the heating part 131 of one of the heating sections 13 or the heat conduction bridge 16 is connected to the heating parts 131 of the corresponding two heating sections 13.

[0090] In some embodiments, a plurality of heat conduction bridges 16 are sequentially arranged at intervals along the first direction X.

[0091] Referring to Figure 2 , in some embodiments, two adjacent heating parts 131 are both linear, and two adjacent heating parts 131 are located on the same straight line. The part of a single heating section 13 located in each heating area 15 is in a stepped shape.

[0092] Referring to Figure 3 , in some embodiments, all the intermediate bridges 132 aligned along the first direction X can be divided into at least two groups (each group of intermediate bridges 132 within each dotted line box in the figure is a group). Define two of the groups as the first group 1321 and the second group 1322 respectively. The second group 1322 is located between the first group 1321 and the reference surface 14. The number of intermediate bridges 132 in each group is at least one. The average cross-sectional areas of each intermediate bridge 132 in each group are equal respectively, and the average cross-sectional area of any intermediate bridge 132 in the first group 1321 is greater than the average cross-sectional area of any intermediate bridge 132 in the second group 1322. In some embodiments, the intermediate bridges 132 in the first group 1321 and the second group 1322 are both the intermediate bridges 132 of the same heating section 13. In other embodiments, the intermediate bridges 132 in the first group 1321 and the second group 1322 can be the intermediate bridges 132 of two different heating sections 13 respectively.

[0093] In some embodiments, the number of intermediate bridges 132 in each group is one. It can be understood that between the first conductive section 11 and the reference surface 14, along the positive direction of the first direction X, the average cross-sectional area of a single intermediate bridge 132 gradually decreases, that is, the cross-sectional area of the intermediate bridge 132 closer to the reference surface 14 is smaller. In other embodiments, the number of intermediate bridges 132 in each group can be two or three or more. In other embodiments, the number of intermediate bridges 132 in each group can also be unequal.

[0094] In some embodiments, each intermediate bridge 132 is sheet-shaped, and the thickness of each intermediate bridge 132 is equal. The difference in the average cross-sectional area between the intermediate bridges 132 is reflected by the difference in the width of the intermediate bridges 132 (dimensions h1 and h2 in the figure, where h1 > h2). In some other embodiments, the width of each intermediate bridge 132 can be made the same, and the difference in the average cross-sectional area between the intermediate bridges 132 is reflected by the difference in the thickness of the intermediate bridges 132. In some other embodiments, the widths and thicknesses of two corresponding intermediate bridges 132 can also be made different, as long as the average cross-sectional areas of the two intermediate bridges 132 meet the requirements.

[0095] By making the average cross-sectional area of the intermediate bridges 132 in the first group 1321 larger than that of the intermediate bridges 132 in the second group 1322, the thermal conductivity of the intermediate bridges 132 at both ends of the heating section 13 is higher than that of the intermediate bridges 132 at the middle position of the heating section 13. As a result, the heat of the intermediate bridges 132 at both ends of the heating section 13 can be greater than that of the intermediate bridges 132 at the middle position of the heating section 13. After part of the heat of the intermediate bridges 132 at both ends of the heating section 13 is dissipated through the electrodes, the heat distribution at each point along the first direction X between two adjacent heating sections 13 can tend to be uniform, so that the temperatures at each point along the first direction X between two adjacent heating sections 13 tend to be consistent.

[0096] Refer to Figure 4 , when the average cross-sectional area of the heating part 131 remains unchanged, the volume of the heating part 131 is positively correlated with the length of the heating part 131 (dimensions f1 and f2 in the figure, where f1 < f2). In some embodiments, the length of any heating part 131 in the first heating area 151 is less than the average length of any heating part 131 in the second heating area 152. In some embodiments, among multiple heating parts 131 in the same heating area, the length of each heating part 131 is equal. In some embodiments, between the first conductive section 11 and the reference surface 14, along the positive direction of the first direction X, the maximum distance between two adjacent heating parts 131 along the first direction X gradually increases.

[0097] In some other embodiments, among multiple heating parts 131 in the same heating area, the length of each heating part 131 can be unequal.

[0098] In some embodiments, the number of heating portions 131 in two consecutive heating zones closest to the first conductive segment 11 and one heating zone closest to the reference surface 14 is one, and the number of heating portions 131 in each of the other heating zones is two. In some other embodiments, the number of heating portions 131 in a single heating zone may also be three or more. In some other embodiments, the number of heating portions 131 in each heating zone may be one, two, or more.

[0099] By making the length of the heating portion 131 in the first heating zone 151 less than the length of the heating portion 131 in the second heating zone 152, and making the distribution density of the heating portions 131 at both ends of the heating segment 13 greater than the distribution density of the heating portions 131 at the middle position of the heating segment 13, the heat generation amount at both ends of the heating segment 13 can be made greater than the heat generation amount at the middle position of the heating segment 13. After part of the heat at both ends of the heating segment 13 is dissipated by the electrodes, the temperature at both ends of the heating segment 13 and the temperature at the middle position of the heating segment 13 tend to be consistent.

[0100] In some other embodiments, the average cross-sectional area of any heating portion 131 in the first heating zone 151 can be made less than the average cross-sectional area of any heating portion 131 in the second heating zone 152, and the length of any heating portion 131 in the first heating zone 151 can be made less than the length of any heating portion 131 in the second heating zone 152.

[0101] Referring to Figure 5 , in some embodiments, for two adjacent heating segments 13, the average distance along the second direction Y between two heating portions 131 aligned along the second direction Y in the first heating zone 151 is defined as L1, and the average distance along the second direction Y between two heating portions 131 aligned along the second direction Y in the second heating zone 152 is defined as L2. Between the first conductive segment 11 and the reference surface 14, the average value of all L1s in the first heating zone 151 is less than the average value of all L2s in the second heating zone 152.

[0102] For two adjacent heating segments 13, the portions of the two heating segments 13 in the first heating zone 151 are relatively close, and the portions of the two heating segments 13 in the second heating zone 152 are relatively far apart. In the second direction Y, the heat of the heating element 10 can be evenly distributed, so that the temperatures at various positions of the heating element 10 in the second direction Y tend to be consistent.

[0103] In some other embodiments, between the first conductive segment 11 and the reference surface 14, along the positive direction of the first direction X, the interval distance gradually increases, that is, the interval distance is larger closer to the reference surface 14. In embodiments where the number of heating portions 131 in each heating zone is multiple, the interval distance in each heating zone can be kept consistent.

[0104] Reference Figure 6 , in some embodiments, the heating section 13 is provided with a heat conduction structure 133. In some embodiments, the heat conduction structure 133 includes a plurality of heat conduction holes, and the plurality of heat conduction holes are dispersedly arranged on the surfaces of the heating part 131 and the intermediate bridge 132 of the heating section 13. In some embodiments, the heat conduction holes are formed by a laser engraving process. In some other embodiments, the heat conduction holes can be formed by chemical etching, stamping, drilling with a drill bit, or other methods.

[0105] In some other embodiments, the heat conduction structure 133 can be a heat conduction groove or a heat conduction protrusion. The heat conduction groove can be formed by laser engraving, chemical etching, cutting, stamping, rolling, or other methods, and the heat conduction protrusion can be formed by welding, stamping, rolling, or other methods. In some other embodiments, the heat conduction structure 133 can also be a mixture of multiple structures such as heat conduction holes, heat conduction grooves, and heat conduction protrusions.

[0106] In some other embodiments, the heat conduction structure 133 can be provided only on the heating section 13 or the intermediate bridge 132. The heat conduction structure 133 can increase the contact area between the heating section 13 and the aerosol matrix, thereby facilitating the improvement of the efficiency of the heating section 13 in heating the aerosol matrix. In some embodiments, the heat conduction bridge 16 is provided with the above-mentioned heat conduction structure 133.

[0107] Reference Figure 7 , an embodiment of the present application further provides an atomization core 20, including a guiding member 21 and the heating element 10 provided in any of the above embodiments, and the heating element 10 is in a flat plate shape. The guiding member 21 is in contact with the heating element 10 and is configured to guide the aerosol matrix to flow toward the heating element 10.

[0108] In some embodiments, the guiding member 21 is laid flat on the surface of the heating element 10, and the guiding member 21 is in contact with the surface of the heating section 13 of the heating element 10. When the guiding member 21 comes into contact with the aerosol matrix, the aerosol matrix can automatically flow along the guiding member 21 toward the heating section 13 through capillary action. In some embodiments, the guiding member 21 is cotton wool. In some other embodiments, the guiding member 21 can also be a structural member made of ceramic or other materials with a microporous structure, and the micropores therein are used to guide the aerosol matrix to flow toward the texture through capillary action. In some other embodiments, the guiding member 21 can be a structure made of other materials with capillary action. In some other embodiments, the aerosol matrix can flow along the guiding member 21 to the heating section 13 of the heating element 10 under its own gravity.

[0109] In some embodiments, the heating element 10 further includes a positive electrode connecting member 17 and a negative electrode connecting member 18 (the dotted lines in the figure are used to separate the positive electrode connecting member 17 from the first conductive section 11 and the negative electrode connecting member 18 from the second conductive section 12), the positive electrode connecting member 17 is electrically connected to the first conductive section 11, and the negative electrode connecting member 18 is electrically connected to the second conductive section 12.

[0110] In some embodiments, the positive electrode connecting member 17 and the negative electrode connecting member 18 are sheet-shaped. In other embodiments, the positive electrode connecting member 17 and the negative electrode connecting member 18 may be columnar, block-shaped or of other shapes.

[0111] In some embodiments, the positive electrode connecting member 17 is integrally formed with the first conductive section 11, and the negative electrode connecting member 18 is integrally formed with the second conductive section 12. In other embodiments, the positive electrode connecting member 17 is electrically connected to the first conductive section 11 through a wire or other conductive structure, and the negative electrode connecting member 18 is electrically connected to the second conductive section 12 through a wire or other conductive structure.

[0112] Referring to Figure 8 , in some embodiments, the heating element 10 is substantially bent into a cylindrical shape. In some embodiments, the cylindrical heating element 10 is formed by bending the flat-plate-shaped heating element 10 in any of the above embodiments. It can be understood that when processing such a heating element 10 bent into a cylindrical shape, the flat-plate-shaped heating element 10 can be processed first, and then the two ends of the flat-plate-shaped heating element 10 are bent towards the middle to form the cylindrical heating element 10.

[0113] In some embodiments, the guiding member 21 is wrapped around the outer periphery of the cylindrical heating element 10, and the guiding member 21 is in contact with the heating section 13 of the heating element 10. In other embodiments, the guiding member 21 can be inserted into the inside of the cylindrical heating element 10 and the guiding member 21 is in contact with the heating section 13 of the heating element 10.

[0114] An embodiment of the present application further provides an aerosol cartridge, including a containing body and the above-mentioned atomization core. The atomization core is disposed in the containing body. The containing body is configured to contain an aerosol matrix, and the atomization core is configured to atomize the aerosol matrix in the containing body. In some implementations, the aerosol matrix is e-liquid. In other embodiments, the aerosol matrix may also be aromatherapy essential oil, disinfectant or other types of liquids.

[0115] The containing body is used to contain the aerosol matrix, and the atomization core is installed in the containing body. For embodiments in which the guiding member guides the flow of the aerosol matrix through capillary action, the guiding member is in contact with the aerosol matrix in the containing body. In other embodiments, the aerosol matrix can flow to the guiding member under the action of its own gravity. The structure of the containing body and the installation method of the atomization core have been disclosed in the related art and will not be elaborated here.

[0116] An embodiment of the present application further provides an aerosol device, including a power supply body and the above-mentioned aerosol cartridge. The containing body of the aerosol cartridge is connected to the power supply body, and the first conductive section and the second conductive section are both electrically connected to the electrodes of the power supply body. It can be understood that the positive electrode connecting member and the negative electrode connecting member are respectively electrically connected to the electrodes of the power supply body.

[0117] A power source is installed inside the power supply body. After the accommodating body of the aerosol cartridge is installed on the power supply body, the positive electrode of the power source inside the power supply body is electrically connected to the positive electrode connecting member, and the negative electrode of the power source inside the power supply body is electrically connected to the negative electrode connecting member to supply power to the heating section, so that the heating section generates heat. The structure of the power supply body and the installation method of the aerosol cartridge have been disclosed in the related art and will not be elaborated here. In some embodiments, the power source inside the power supply body is a battery. In other embodiments, the power source inside the power supply body can be a circuit board electrically connected to the power supply circuit.

[0118] In some embodiments, the aerosol device is an electronic cigarette, and the corresponding aerosol matrix is e-liquid. In other embodiments, the aerosol device can be an aromatherapy diffuser, and the corresponding aerosol matrix is aromatherapy essential oil. In other embodiments, the aerosol device can be a medical nebulizer, and the corresponding aerosol matrix is a disinfectant or other medicated liquids with therapeutic effects. In other embodiments, the aerosol device can also be other types of atomizing devices, which will not be elaborated here.

[0119] In some embodiments, the working mode of the aerosol device is as follows:

[0120] The power source inside the power supply body supplies power to the heating section of the heating element through the first conductive section and the second conductive section, so that the heating section of the heating element generates heat. The heat generated by this heating section is evenly distributed, and the temperatures at both ends and the middle position of the heating element can reach the temperature for atomizing the aerosol matrix simultaneously, which is beneficial to improving the atomization effect.

[0121] In addition, those of ordinary skill in the art in this technical field should recognize that the above embodiments are only used to illustrate the present application, rather than to limit the present application. As long as it is within the scope of the essential spirit of the present application, appropriate changes and variations made to the above embodiments fall within the scope of the disclosure of the present application.

Claims

1. A heating element, characterized in that, The heating element includes: A first conductive segment; A second conductive segment, which is arranged at an interval from the first conductive segment, and the direction from the first conductive segment to the second conductive segment is defined as the positive direction of the first direction; and A heating segment, which is arranged between the first conductive segment and the second conductive segment. The heating segment includes a plurality of heating parts, and the plurality of heating parts are arranged in sequence along the first direction and are connected end to end in sequence. One of the heating parts at one end of the heating segment is electrically connected to the first conductive segment, and one of the heating parts at the other end of the heating segment is electrically connected to the second conductive segment. The heating part is configured to heat the aerosol matrix; There is a reference plane between the first conductive segment and the second conductive segment. The distance between the first conductive segment and the reference plane is equal to the distance between the second conductive segment and the reference plane, and the heating segment is symmetric about the reference plane; The area between the first conductive segment and the reference plane is divided into at least two heating zones. Each heating zone includes at least one of the heating parts in one heating segment. Any two of the heating zones are defined as a first heating zone and a second heating zone respectively. The second heating zone is located between the first heating zone and the reference plane. The volume of any one of the heating parts in the first heating zone is smaller than the volume of any one of the heating parts in the second heating zone.

2. The heating element according to claim 1, wherein The average cross-sectional area of any one of the heating parts in the first heating zone is smaller than the average cross-sectional area of any one of the heating parts in the second heating zone, and / or the length of any one of the heating parts in the first heating zone is smaller than the length of any one of the heating parts in the second heating zone.

3. The heating element according to claim 1, wherein A plurality of the heating segments are arranged at intervals along a second direction, and the second direction intersects with the first direction.

4. The heating element according to claim 3, characterized in that, The heating segment further includes an intermediate bridge, and the intermediate bridge is connected to the heating part of the heating segment. The intermediate bridge extends along the second direction towards another adjacent heating segment, and the intermediate bridge is configured to heat the aerosol matrix; A plurality of the intermediate bridges of each heating segment are arranged at intervals in sequence along the first direction.

5. The heating element according to claim 4, characterized in that, Between the first conductive segment and the reference plane, all the intermediate bridges aligned along the first direction are divided into at least two groups, and the number of intermediate bridges in each group is at least one. Two of the groups are defined as a first group and a second group respectively. The second group is located between the first group and the reference plane. The average cross-sectional area of any one of the intermediate bridges in the first group is larger than the average cross-sectional area of any one of the intermediate bridges in the second group.

6. The heating element according to claim 3, characterized in that, For two adjacent heating segments, the average distance along the second direction between two heating parts aligned along the second direction in the first heating zone is defined as L1, and the average distance along the second direction between two heating parts aligned along the second direction in the second heating zone is defined as L2. Between the first conductive segment and the reference plane, the average value of all the L1s in the first heating zone is smaller than the average value of all the L2s in the second heating zone.

7. The heating element according to claim 1, characterized in that, The heating segment is provided with a heat conduction structure, and the heat conduction structure is configured to be in contact with the aerosol matrix.

8. The heating element according to claim 1, wherein Two adjacent ones of the heating parts are not on the same straight line.

9. The heating element according to claim 8, characterized in that, Two adjacent ones of the heating parts are in a V shape, a several-shaped shape, an arc shape or a wavy shape.

10. The heating element according to claim 1, characterized in that, The heating body further includes a heat conduction bridge, the heat conduction bridge is connected to the heating section, the heat conduction bridge extends along a second direction, the heat conduction bridge is configured to heat the aerosol matrix, and the second direction intersects with the first direction.

11. The heating element according to claim 1, characterized in that, The heating body is in a flat shape or a curved cylindrical shape.

12. An atomizing core, characterized in that, It includes a guiding member and the heating body according to any one of claims 1 to 11, the guiding member is in contact with the heating body and is configured to guide the aerosol matrix to flow towards the heating body.

13. An aerosol bomb, characterized in that, It includes a containing body and the atomization core according to claim 12, the atomization core is arranged in the containing body, the containing body is configured to contain the aerosol matrix, and the atomization core is configured to atomize the aerosol matrix in the containing body.

14. An aerosol device, characterized in that, It includes a power supply body and the aerosol cartridge according to claim 13, the containing body of the aerosol cartridge is connected to the power supply body, and both the first conductive section and the second conductive section of the aerosol cartridge are electrically connected to the electrodes of the power supply body respectively.

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