Heating body, atomizing core assembly, atomizing device and atomizing equipment

Abstract

The invention relates to the technical field of aerosol generation, in particular to a heating element, an atomizing core assembly, an atomizing device and atomizing equipment, the heating element is arranged in an atomizing channel and used for heating an atomizing substrate to generate aerosol, the atomizing channel defines a circulation path of the aerosol, and the atomizing core assembly is arranged in the atomizing channel and used for heating the atomizing substrate to generate the aerosol. The heating body is provided with a plurality of temperature adjusting parts which are sequentially arranged along the circulation path of the aerosol; on a circulation path of the aerosol, physical structure parameters of the temperature adjusting part are gradually changed, so that the temperature of the upstream of the heating body is higher than that of the downstream of the heating body; the physical structure parameters comprise at least one of geometric dimension, heat conductivity coefficient or resistivity. The physical structure parameters of the temperature adjusting part are gradually changed on the circulation path of the aerosol, so that the upstream temperature of the heating body is higher than the downstream temperature of the heating body, the problem that the taste is changed due to the fact that the physicochemical characteristics of the aerosol are changed due to repeated heating is effectively solved, and the use experience of a user is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and more specifically, to a heating element, an atomization core assembly, an atomization device, and an atomization equipment. Background Art

[0002] The atomization device heats the atomization matrix through a heating element disposed therein to generate aerosol. Currently, the heating element is arranged along the axial direction of the atomization channel, and the generated aerosol can flow along the atomization channel. Since the physical structure parameters of each part of the heating element along the axial direction of the atomization channel, including geometric dimensions, thermal conductivity, and resistivity, are the same, the temperature distribution of the heating element along the axis of the atomization channel is uniform. During use, the aerosol located upstream of the aerosol flow path is repeatedly heated by the heating element located downstream during the process of flowing downstream. The excessive heating will change the chemical composition and physical properties of the aerosol, resulting in a significant change in its taste, which greatly affects the user experience. Summary of the Invention

[0003] The present application provides a heating element, an atomization core assembly, an atomization device, and an atomization equipment, which can improve the taste of the aerosol and enhance the user experience.

[0004] In a first aspect, the present application provides a heating element disposed in an atomization channel for heating an atomization matrix to generate aerosol. The atomization channel defines a flow path of the aerosol. The heating element has a plurality of temperature adjustment parts, and the plurality of temperature adjustment parts are sequentially arranged along the flow path of the aerosol. On the flow path of the aerosol, the physical structure parameters of the temperature adjustment parts are gradually changed so that the temperature upstream of the heating element is higher than that downstream. Wherein, the physical structure parameters include at least one of geometric dimensions, thermal conductivity, or resistivity.

[0005] In some alternative embodiments, the geometric dimensions include at least one of width, thickness, and chamfer diameter.

[0006] In some alternative embodiments, on the flow path of the aerosol, the temperature of the heating element gradually decreases in a gradient manner.

[0007] In some alternative embodiments, on the flow path of the aerosol, the physical structure parameters of the temperature adjustment parts change in an arithmetic progression.

[0008] In some alternative embodiments, the physical structure parameter is a geometric dimension, and the value range of the common difference of the arithmetic progression is 0.01 mm - 0.03 mm.

[0009] In some alternative embodiments, the temperature adjustment part includes at least one of a heating area, a heat dissipation area, and a connection area.

[0010] In some alternative embodiments, the temperature adjustment unit includes a heating area, and on the aerosol flow path, the physical structure parameters of the heating area vary in an arithmetic progression.

[0011] In some alternative embodiments, the heating area includes a plurality of heating wires, and the plurality of heating wires are sequentially connected to form a polygon structure with a hollow middle. An arc transition is formed between adjacent two heating wires to form a chamfer; on the aerosol flow path, the width of the heating wire increases in an arithmetic progression; and / or, on the aerosol flow path, the resistivity of the heating wire decreases in an arithmetic progression; and / or, on the aerosol flow path, the diameter of the chamfer increases in an arithmetic progression, and the diameter value range of the chamfer located upstream is 0.05 mm - 0.1 mm.

[0012] In some alternative embodiments, the temperature adjustment unit includes a heat dissipation area, and on the aerosol flow path, the physical structure parameters of the heat dissipation area vary in an arithmetic progression.

[0013] In some alternative embodiments, the physical structure parameters of the heat dissipation area include width, and on the aerosol flow path, the width increases in an arithmetic progression, and the width value range of the heat dissipation area located upstream is 0.1 mm - 0.14 mm; and / or, the physical structure parameters of the heat dissipation area include thermal conductivity, and on the aerosol flow path, the thermal conductivity increases in an arithmetic progression; the value range of the common difference of the arithmetic progression is 0.01 mm - 0.03 mm.

[0014] In some alternative embodiments, the temperature adjustment unit includes a connection area, and on the aerosol flow path, the physical structure parameters of the connection area vary in an arithmetic progression.

[0015] In some alternative embodiments, the physical structure parameters of the connection area include width, and on the aerosol flow path, the width decreases in an arithmetic progression; and / or, the physical structure parameters of the connection area include thermal conductivity, and on the aerosol flow path, the thermal conductivity decreases in an arithmetic progression.

[0016] In some alternative embodiments, the heating element includes a plurality of heating areas, a plurality of heat dissipation areas, a plurality of connection areas, and a conductive area. The plurality of heating areas are sequentially arranged along the aerosol flow path; the connection area is arranged between adjacent two heating areas; the heat dissipation areas are oppositely arranged at both ends of the heating area in a direction perpendicular to the aerosol flow path; there are two conductive areas, and they are respectively electrically connected to the heating areas located upstream and downstream.

[0017] In a second aspect, the present application provides an atomizing core assembly, including a liquid storage member and the heating element as described above, and the heating element is disposed in a fitting manner on the surface of the liquid storage member.

[0018] In a third aspect, the present application provides an atomizing device, including:

[0019] a housing having a liquid storage cavity and an atomizing channel, the liquid storage cavity being used for storing an atomizing matrix; a liquid path channel is provided between the atomizing channel and the liquid storage cavity, so that the atomizing matrix stored in the liquid storage cavity can be transferred into the atomizing channel;

[0020] and the atomizing core assembly as described above, the atomizing core assembly is disposed in the atomizing channel, and the liquid storage member is disposed in a fitting manner against the inner wall of the atomizing channel, and the heating element is used for heating the atomizing matrix after being powered on to generate an aerosol, and the flow path of the aerosol is configured to be defined by the atomizing channel.

[0021] In a fourth aspect, the present application provides an atomizing device, including a power supply assembly and the atomizing device as described above, and the power supply assembly is used for supplying power to the atomizing device.

[0022] According to the heating element, atomizing core assembly, atomizing device and atomizing device in this embodiment, the heating element has a plurality of temperature adjustment parts sequentially arranged along the flow path of the aerosol, and the physical structure parameters of the temperature adjustment parts are gradually changed on the flow path of the aerosol, so that the temperature upstream of the heating element is greater than the temperature downstream, effectively preventing the aerosol downstream from being reheated by the upstream during the process of flowing along the flow path, solving the problem that the physical and chemical properties of the aerosol are changed due to repeated heating, resulting in a change in taste, and effectively improving the user experience. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of an atomizing device in an embodiment;

[0024] Figure 2 It is a structural cross-sectional view of an atomizing device in an embodiment;

[0025] Figure 3 It is an exploded schematic structural diagram of an atomizing device in an embodiment;

[0026] Figure 4 It is a schematic diagram of the temperature field distribution of a heating element in a traditional solution;

[0027] Figure 5 It is a schematic diagram of the temperature field distribution of a heating element in an embodiment;

[0028] Figure 6 It is a schematic structural diagram of a heating element at an angle in an embodiment;

[0029] Figure 7 It is a schematic structural diagram of the heating element from another angle in an embodiment;

[0030] Figure 8 It is a schematic structural diagram of the gradual change setting of the physical structure parameters of the heating element in an embodiment.

[0031] Wherein: 100, atomizing device; 110, first housing; 111, liquid storage cavity; 112, atomizing channel; 113, housing body; 114, base; 120, atomizing core assembly; 121, heating element; 1211, heating area; 1212, heat dissipation area; 1213, connection area; 1214, conductive area; 122, liquid storage member; 130, support assembly; 131, first seal; 132, bracket; 133, second seal; 134, liquid guiding hole; 135, air flow hole; 136, electrode hole; 140, conductive electrode; 200, power supply assembly;

[0032] W, width; H, thickness; D, chamfer diameter; A, aerosol flow path. Detailed implementation manners

[0033] The present application will be further described in detail below in conjunction with the accompanying drawings through specific implementation manners. Similar elements in different implementation manners adopt related similar element numbers. In the following implementation manners, many detailed descriptions are for better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, which is to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the descriptions in the specification and the general technical knowledge in the art.

[0034] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various implementation manners, and the operation steps involved in each embodiment can also be adjusted or reordered in an obvious manner by those skilled in the art. Therefore, the specification and the drawings are only for clearly describing a certain embodiment, and do not mean to be the necessary composition and / or order.

[0035] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0036] Please refer toFigure 1 An atomizing device is an apparatus for heating an atomizing matrix to atomize it into an aerosol. The atomizing device includes a power supply assembly 200 and an atomizing device 100. The power supply device is used to supply power to the atomizing device 100, and the atomizing device 100 heats the atomizing matrix inside it after being powered on.

[0037] It should be noted that the aerosol mentioned in the terms refers to a dispersion of solid particles or liquid particles in a gas. The "aerosol" used in this article is generally used to refer to a substance that has been vaporized, atomized, in the form of a spray or jet, or otherwise converted from a solid or liquid form into an inhalable form containing suspended solid or liquid drug particles.

[0038] The atomizing matrix is any suitable compound or mixture of compounds that facilitates aerosol formation during use. The atomizing matrix includes but is not limited to: polyols, such as triethylene glycol, 1,3 - butanediol, and glycerol; esters of polyols, such as glycerol mono-, di-, or triacetate; and aliphatic esters of mono-, di-, or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate. It may also include nicotine. Or it may include glycerol (also known as propylene glycol) with a boiling point higher than nicotine. It may also include propylene glycol or plant - based materials.

[0039] The atomizing device further includes a housing, which can be understood as an aggregate of multiple structural components. At least one installation space is formed inside the housing to facilitate the installation of the power supply assembly 200 and / or the atomizing device 100. In some specific embodiments, the power supply assembly 200 and the atomizing device 100 can be an integrated apparatus and are jointly accommodated inside the above - mentioned housing. Of course, in some other specific embodiments, the above - mentioned housing includes a first housing 110 and a second housing that are detachably connected. The first housing 110 is used to install other components belonging to the atomizing device 100 in the figure, and the second housing is used to install other components belonging to the power supply assembly 200 in the figure, so that the power supply assembly 200 and the atomizing device 100 are detachably connected to facilitate the separate replacement and maintenance of the power supply assembly 200 or the atomizing device 100.

[0040] Please refer to Figure 2 The atomizing device 100 further includes an atomizing core assembly 120. There is a liquid storage cavity 111 and an atomizing channel 112 inside the above - mentioned first housing 110. The liquid storage cavity 111 is used to store the atomizing matrix. A communicating liquid path channel is provided between the liquid storage cavity 111 and the atomizing channel 112 so that the atomizing matrix in the liquid storage cavity 111 can be transferred along this liquid path channel to the atomizing channel 112. The atomizing core assembly 120 is arranged in the atomizing channel 112 and is used to heat the atomizing matrix to generate an aerosol. The atomizing channel 112 defines a flow path A for the aerosol so that the aerosol flows along the atomizing channel 112 to the user (such as into the user's mouth or nose).

[0041] Please continue to refer to Figure 2 , a support assembly 130 is further provided inside the first housing 110. The above liquid passage is provided on the support assembly 130 to communicate the atomization passage 112 and the liquid storage cavity 111. The support assembly 130 is used for the atomization core assembly 120 to be installed inside the first housing 110 to limit and fix the atomization core assembly 120.

[0042] Please refer to Figure 3 , in some embodiments, the first housing 110 includes a housing body 113 and a base 114. The base 114 is provided at one end of the housing body 113 to enclose and form the liquid storage cavity 111. To ensure the sealing performance after connection and avoid liquid leakage, the base 114 can be inserted into the interior of the housing body 113, and a sealing ring is provided between the base 114 and the housing body 113.

[0043] Further, please continue to refer to Figure 3 , the support assembly 130 includes a first seal 131, a bracket 132, and a second seal 133. The first seal 131, the bracket 132, and the second seal 133 are arranged in sequence from downstream to upstream along the aerosol flow path A. A space for facilitating the assembly of the atomization core assembly 120 is provided inside the bracket 132, and this space is configured to form a partial structure of the atomization passage 112. Liquid guide holes 134 are provided at both ends of the first seal 131 and the bracket 132 to construct and form a liquid passage. Air flow holes 135 are provided on the second seal 133 and the base 114 to form an air flow passage, and this air flow passage is communicated with the atomization passage 112. When using the atomization device 100, external air enters the atomization passage 112 along this air flow passage, and after being mixed with the aerosol in the atomization passage 112, it is discharged from the atomization device 100 along the aerosol flow path A.

[0044] The atomization device 100 further includes a conductive electrode 140. Mounting holes are provided on the second seal 133 and the bracket 132. The conductive electrode 140 is installed in the mounting holes and is electrically connected to the atomization core assembly 120. After the atomization device 100 is connected to the power supply assembly 200, the conductive electrode 140 can be electrically connected to the power supply assembly 200 so that the power supply assembly 200 can supply power to the atomization core assembly 120. The first seal 131 and the second seal 133 can be made of silicone material, which has the advantages of high temperature resistance, good sealing performance, and easy processing, and can avoid liquid leakage and air leakage inside the atomization device 100.

[0045] Please continue to refer to Figure 3 , the atomization core assembly 120 includes a heating element 121 and a liquid storage member 122. The heating element 121 is arranged in contact with the liquid storage member 122. The liquid storage member 122 is used to guide and store the atomization matrix. The heating element 121 can heat the atomization matrix on the liquid storage member 122 after being powered on.

[0046] In some embodiments, the liquid storage member 122 can be made of a porous material. For example, the liquid storage member 122 can be made of a porous fiber material or a porous ceramic material. The porous structure on the liquid storage member 122 can utilize the capillary effect to guide and store the atomization matrix, effectively ensuring the sufficiency of the atomization matrix and avoiding the occurrence of the phenomenon of a clogged core caused by insufficient atomization matrix.

[0047] In some embodiments, the heating element 121 has a plurality of temperature adjustment parts, which are sequentially arranged along the aerosol flow path A; on the aerosol flow path A, the physical structure parameters of the temperature adjustment parts are gradually changed so that the temperature upstream of the heating element 121 is higher than that downstream.

[0048] It should be noted that the "physical structure parameters" in the text include at least one of geometric dimensions, thermal conductivity, or resistivity.

[0049] It should be further noted that the "upstream" and "downstream" in the text are spatial position concepts determined based on the aerosol flow direction. "Upstream" is the position where the aerosol initially flows through, and "downstream" is the position where the aerosol finally flows to. Figure 2 The direction indicated by the dashed arrow in the figure is the direction from upstream to downstream.

[0050] Since the aerosol will also pass through part of the heating element 121 during the process of flowing from upstream to downstream, the aerosol is reheated repeatedly, resulting in changes in the physical or chemical properties of the aerosol, and thus changes in the taste of the aerosol (such as the aerosol becoming bitter), which affects the user experience. The present application creatively improves the physical structure parameters of the temperature adjustment parts in the heating element 121, reducing the temperature downstream of the heating element 121, effectively preventing the aerosol downstream from being reheated repeatedly by the upstream during the flow along the flow path, solving the problem of the change in the taste of the aerosol, and effectively improving the user experience.

[0051] In some embodiments, the geometric dimensions include at least one of the width W, thickness H, and chamfer diameter D. In other words, to ensure that the temperature of the heating element 121 gradually decreases in a gradient, one of the width W, thickness H, or chamfer diameter D of the heating element 121 can be gradually changed, or any two parameters can be freely combined and gradually changed, or all three parameters can be gradually changed simultaneously.

[0052] In some embodiments, different from the temperature field in the traditional solution (as shown in Figure 4 ), on the aerosol flow path A, the temperature of the heating element 121 gradually decreases in a gradient, thereby establishing a temperature field with a gradient distribution along the aerosol flow path A (as shown in Figure 5As shown, the temperature of the heating element 121 is lower at positions closer to the downstream, as low as 178°C, while the temperature of the upstream heating element 121 is as high as 229°C. In some specific embodiments, the physical structure parameters of the temperature adjustment unit vary in an arithmetic progression, so that the temperature of the heating element 121 gradually decreases in a gradient.

[0053] It should be noted that Figure 4 and Figure 5 the longitudinally extending colors in [figure] represent the temperature distribution, and different colors correspond to different temperature ranges. The low-temperature area in the figure is mapped to blue, and as the temperature increases, the color gradually changes to green, yellow, orange, and finally to red representing the high-temperature area.

[0054] In some embodiments, the physical structure parameter is the geometric dimension, and the value range of the common difference of the arithmetic progression is 0.01 mm - 0.03 mm. Exemplarily, the common difference of the arithmetic progression can be selected as 0.01, 0.02, or 0.03, or any value between any two of the above values. Preferably, the common difference of the arithmetic progression is 0.02, so that the temperature of the heating element 121 decreases in a gradient along the aerosol flow path A, avoiding too rapid temperature decrease or temperature decrease during fluctuations, thereby effectively preventing the occurrence of aerosol reheating phenomenon.

[0055] Please refer to Figure 6 and Figure 7 . In some embodiments, the heating element 121 includes a plurality of heating zones 1211, a plurality of heat dissipation zones 1212, and a plurality of connection zones 1213. The plurality of heating zones 1211 are arranged in sequence along the aerosol flow path A for heating after passing through the channel. The connection zones 1213 are arranged between adjacent two heating zones 1211 for achieving electrical connection and heat transfer between adjacent two heating zones 1211; the heat dissipation zones 1212 are oppositely arranged at both ends of the heating zones 1211 along the direction perpendicular to the aerosol flow path A for reducing the temperature of the heating zones 1211. The temperature adjustment unit includes at least one of the heating zones 1211, the heat dissipation zones 1212, and the connection zones 1213. In other words, the physical structure parameters of any one, any two, or all three of the heating zones 1211, the heat dissipation zones 1212, and the connection zones 1213 are set to vary gradually, so as to ultimately achieve the purpose that the upstream temperature of the heating element 121 is greater than the downstream temperature. Even more, the temperature of the heating element 121 can be made to gradually decrease in a gradient along the aerosol flow path A according to requirements. The set number of the heating zones 1211, the heat dissipation zones 1212, and the connection zones 1213 can be at least two, four, six or more, and no specific limitation is made.

[0056] In some embodiments, the heating element 121 further includes two conductive regions 1214. The two conductive regions 1214 are electrically connected to the heating regions 1211 located upstream and downstream respectively. The plurality of heating regions 1211 are connected in series. The conductive regions 1214 are respectively in contact with and electrically connected to the two conductive electrodes 140. Of course, the plurality of heating regions 1211 can also be connected in parallel to reduce the difficulty of adjusting the physical structure parameters of the heating wire passing through the heating region 1211 to adjust the temperature of the heating element 121.

[0057] Further, the contact between the conductive region 1214 and the conductive electrode 140 can include direct contact or indirect connection. When the conductive region 1214 and the conductive electrode 140 are in direct contact, it can be an elastic connection, a plug-in connection or a fitting connection. When the conductive region 1214 and the conductive electrode 140 are elastically connected, the conductive electrode 140 includes a conductive spring pin, which can improve the connection stability between the conductive region 1214 and the conductive electrode 140 and ensure the stability of the current in the heating element 121.

[0058] In a specific embodiment, when the temperature adjustment part is the heating region 1211, on the aerosol flow path A, the physical structure parameters of the heating region 1211 change in an arithmetic progression. This change rule includes that the values increase or decrease in an arithmetic progression. For different physical structure parameters, their influence rules on the heating efficiency are different.

[0059] Based on the internal structure of the atomizing core assembly 120, the heating element 121 is in a sheet structure. Since the heating element 121 is arranged in contact with the liquid storage member 122, in order to ensure uniform and sufficient contact between the heating element 121 and the atomization matrix to ensure the atomization effect, the overall thickness H of the heating element 121 should be uniform, that is, the thickness H values of the heating region 1211, the heat dissipation region 1212, and the connection region 1213 of the heating element 121 are the same. Specifically, the value range of the thickness H of the heating element 121 is 0.05 mm - 0.12 mm. Based on this, the design methods of other physical structure parameters such as the remaining geometric dimensions, resistivity, and thermal conductivity of the heating element 121 except for the thickness H will be specifically introduced below.

[0060] Further, the heating region 1211 includes a plurality of heating wires. The plurality of heating wires are connected in sequence to form a polygon structure with a hollow middle. The adjacent two heating wires are transitioned by an arc to form a chamfer. This polygon structure can be a quadrilateral, a hexagon, etc., which is not limited here. In order to ensure the uniform temperature of each heating region 1211, the heating region 1211 is a symmetric structure in the direction of the aerosol flow path A and in the direction perpendicular to this flow path. Since the heating wire is generally made of a conductive material, its heating efficiency is related to the resistance. In a series circuit, the greater the resistance, the greater the heating efficiency. In a parallel circuit, the smaller the resistance, the greater the heating efficiency. And the size of the resistance is related to the geometric dimensions and resistivity of the heating wire. The relational expression is: Among them, ρ is the resistivity, which is related to the material of the resistance wire. L is the conductor length, and S is the conductor cross-sectional area. When the thickness H is constant, the cross-sectional area S is proportional to the width W. Therefore, the corresponding temperature change can be achieved by designing the geometric dimensions of the heating wire or selecting a resistance material with different resistivity as the heating wire.

[0061] Please continue to refer to Figure 6 and Figure 7 , when multiple heating zones 1211 are connected in series with each other, when designing the width W in the geometric dimensions of the heating wire, on the aerosol flow path A, the width W of the heating wire increases in an arithmetic progression. When the multiple heating wires in each heating zone 1211 are made of the same material and their thickness H, width W, etc. are all the same, the heating wires of two adjacent heating zones 1211 can be set with different widths W, which follows the rule that on the aerosol flow path A, the width W of the heating wire corresponding to the heating zone 1211 increases in an arithmetic progression, so that the heating efficiency decreases in a gradient, thereby achieving the purpose of a gradient decrease in temperature. When each heating zone 1211 has at least two heating wires arranged in sequence along the aerosol flow path A, the widths W of the heating wires arranged along the aerosol flow path A in the same heating zone 1211 can also be set to be different, and at the same time, the widths W of all the heating wires arranged along the aerosol flow path A in the heating zone 1211 also increase in an arithmetic progression. Of course, in other embodiments, the geometric dimensions are not limited to the width W mentioned above, but also include the thickness H. The design rule of the thickness H is the same as that of the width W of the heating wire, and will not be elaborated here.

[0062] When designing the resistivity of the heating wire, on the aerosol flow path A, the resistivity of the heating wire decreases in an arithmetic progression. Since the smaller the resistivity, the smaller the resistance value, the lower the heating efficiency and the lower the temperature. Therefore, reducing the resistivity of the heating wire can lower the temperature of the heating wire. Similarly, the resistivity of the heating wire decreasing in an arithmetic progression can include designing the heating wires in the same heating zone 1211 to have the same resistivity, and designing the resistivities of multiple heating zones 1211 arranged along the aerosol flow path A to decrease in an arithmetic progression. It can also include that when each heating zone 1211 includes at least two heating wires arranged in sequence along the aerosol flow path A, the heating wires in each heating zone 1211 also show a change rule of decreasing in an arithmetic progression along the aerosol flow path A, and all the heating wires arranged along the aerosol flow path A in the heating zone 1211 also decrease in an arithmetic progression.

[0063] When multiple heating zones 1211 are connected in parallel, according to the variation law that the heating efficiency is inversely proportional to the resistance, corresponding designs can be made for physical structure parameters such as resistivity, width, and thickness that affect the resistance, and corresponding temperature changes can also be achieved. This design method can refer to the law of multiple heating zones 1211 connected in series described above, and will not be elaborated here.

[0064] When designing the chamfer in the geometric dimensions of the heating wire, in both series and parallel circuits, on the aerosol flow path A, the diameters of the chamfers increase in an arithmetic progression. The larger the diameter of the chamfer, the larger the hollow area of the heating zone 1211, and the smaller the effective area for generating heat, and the lower the corresponding temperature. The diameter value range of the chamfer located upstream is 0.05 mm - 0.1 mm. Exemplarily, the diameter D of the chamfer located upstream can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, or 0.1 mm, or any value between any two of the above values. Preferably, the diameter D of the chamfer located upstream is 0.08 mm, and the chamfers of other heating zones 1211 can decrease in an arithmetic progression with a tolerance of 0.01 mm - 0.03 mm based on this value. In this embodiment, the width W of the heating wire can be maintained within the value range of 0.06 mm - 0.14 mm, and the widths W of all heating wires are the same.

[0065] When the temperature adjustment part includes the heat dissipation zone 1212, on the aerosol flow path A, the physical structure parameters of the heat dissipation zone 1212 change in an arithmetic progression. Specifically, the physical structure parameters of the heat dissipation zone 1212 include geometric dimensions such as width W and thickness H, and also include the thermal conductivity. By designing at least one of the width W, thickness H, or thermal conductivity, the temperature of the heating element 121 can be such that the upstream temperature is greater than the downstream temperature on the aerosol flow path A, and even shows a distribution law of gradually decreasing in a gradient. Since the heat dissipation zones 1212 are symmetrically arranged at both ends of the heating zone 1211, in order to ensure the realization of the above purpose, the heat dissipation efficiency of the heat dissipation zones 1212 should increase in a gradient on the aerosol flow path A.

[0066] When changing the width W of the heat dissipation zone 1212, the heat dissipation zone 1212 is made of the same material to ensure the same thermal conductivity, and the thickness H of the heat dissipation zone 1212 is the same. Then, on the aerosol flow path A, the width W increases in an arithmetic progression. The value range of the width W of the heat dissipation zone 1212 located upstream is 0.1 mm - 0.14 mm. Exemplarily, the value of the width W of the heat dissipation zone 1212 located upstream is 0.1 mm, 0.11 mm, 0.12 mm, 0.13 mm, or 0.14 mm, or any value between any two of the above values. Preferably, the value of the width W of the heat dissipation zone 1212 is 0.12 mm, and the widths of other heat dissipation zones 1212 can increase in an arithmetic progression based on this.

[0067] When changing the thermal conductivity of the heat dissipation area 1212, the greater the thermal conductivity, the faster the heat dissipation, and the lower the corresponding temperature. Then, on the aerosol flow path A, the thermal conductivity increases in an arithmetic progression, and the common difference of the arithmetic progression can be 0.01 - 0.03.

[0068] When the temperature adjustment part includes the connection area 1213, on the aerosol flow path A, the physical structure parameters of the connection area 1213 change in an arithmetic progression. Since the connection area 1213 is arranged between two adjacent heating areas 1211, the heat conduction efficiency of the connection area 1213 on the aerosol flow path A can decrease in a gradient manner, so as to prevent excessive heat from the upstream from being transferred to the downstream, resulting in the downstream being affected by heat accumulation and temperature rise, which affects the temperature adjustment effect.

[0069] The physical structure parameters of the connection area 1213 include geometric dimensions such as width W and thickness H, and also include thermal conductivity. By designing at least one of the width W, thickness H, or thermal conductivity, the temperature of the heating element 121 can be such that the upstream temperature is greater than the downstream temperature on the aerosol flow path A, and even shows a distribution law of gradually decreasing in a gradient manner. When changing the width W, on the aerosol flow path A, the width W decreases in an arithmetic progression. When changing the thermal conductivity, the physical structure parameters of the connection area 1213 include thermal conductivity, and on the aerosol flow path A, the thermal conductivity decreases in an arithmetic progression.

[0070] In some other embodiments, the connection area 1213 can only have an electrical conduction function and does not have heat conduction energy, so that the heat between multiple heating areas 1211 cannot be transferred, which helps to achieve the purpose of temperature adjustment by changing the physical structure parameters of the heat dissipation area 1212 and the heating area 1211.

[0071] Please refer to Figure 6 and 8 , in a specific embodiment, on the aerosol flow path A, the temperature adjustment part includes the heating area 1211 and the heat dissipation area 1212, and the physical structure parameters of the heating area 1211 include the diameter of the chamfer, and the physical structure parameters of the heat dissipation area 1212 include the width W. There are 5 heating areas 1211, and the heat dissipation areas 1212 are symmetrically arranged at both ends of the heating areas 1211, that is, there are 10 heat dissipation areas 1212, and 6 connection areas 1213, and two of them are used to realize the electrical connection between the heating area 1211 and the conductive area 1214. By synchronously changing the diameter of the chamfer of the heating area 1211 and the width W of the heat dissipation area 1212, the heating area 1211 and the heat dissipation area 1212 can cooperate to ensure that the temperature of the heating element 121 is Figure 5 as shown in the temperature field distribution. It should be noted that Figure 5The temperature value in [it] is only for illustration in a specific embodiment to facilitate the understanding of the temperature decreasing in a gradient, rather than limiting the temperature of the heating element 121 to remain at this value every time it is implemented.

[0072] The above uses specific examples to elaborate on the present application, which is only used to help understand the present application and is not intended to limit the present application. For those skilled in the technical field to which the present application pertains, several simple deductions, deformations or substitutions can also be made according to the idea of the present application.

Claims

1. A heating element is disposed in an atomization channel and is used to heat an atomization matrix to generate an aerosol. The atomization channel defines a flow path of the aerosol, and is characterized in that The heating element has a plurality of temperature adjustment portions, and the plurality of temperature adjustment portions are arranged in sequence along the flow path of the aerosol; on the flow path of the aerosol, the physical structure parameters of the temperature adjustment portions are gradually changed so that the temperature upstream of the heating element is higher than that downstream. Wherein, the physical structure parameters include at least one of geometric dimension, thermal conductivity or resistivity.

2. The heating element according to claim 1, characterized in that, The geometric dimension includes at least one of width, thickness, and chamfer diameter.

3. The heating element according to claim 1 or 2, characterized in that, On the flow path of the aerosol, the temperature of the heating element gradually decreases in a gradient manner.

4. The heating element according to claim 3, characterized in that, On the flow path of the aerosol, the physical structure parameters of the temperature adjustment portions change in an arithmetic progression.

5. The heating element according to claim 4, characterized in that, The physical structure parameter is a geometric dimension, and the value range of the common difference of the arithmetic progression is 0.01 mm - 0.03 mm.

6. The heating element according to claim 1, wherein The temperature adjustment portion includes at least one of a heating area, a heat dissipation area, and a connection area.

7. The heating element according to claim 1, wherein, The temperature adjustment portion includes a heating area, and on the flow path of the aerosol, the physical structure parameters of the heating area change in an arithmetic progression.

8. The heating element according to claim 7, characterized in that, The heating area includes a plurality of heating wires, and the plurality of heating wires are sequentially connected to form a polygonal structure with a hollow middle. An arc transition is formed between adjacent two heating wires to form a chamfer; on the flow path of the aerosol, the width of the heating wire increases in an arithmetic progression; and / or, on the flow path of the aerosol, the resistivity of the heating wire decreases in an arithmetic progression; and / or, on the flow path of the aerosol, the diameter of the chamfer increases in an arithmetic progression, and the value range of the diameter of the chamfer located upstream is 0.05 mm - 0.1 mm.

9. The heating element according to claim 1, wherein, The temperature adjustment portion includes a heat dissipation area, and on the flow path of the aerosol, the physical structure parameters of the heat dissipation area change in an arithmetic progression.

10. The heating element according to claim 9, wherein, The physical structure parameters of the heat dissipation area include width, and on the flow path of the aerosol, the width increases in an arithmetic progression, and the value range of the width of the heat dissipation area located upstream is 0.1 mm - 0.14 mm; and / or, the physical structure parameters of the heat dissipation area include thermal conductivity, and on the flow path of the aerosol, the thermal conductivity increases in an arithmetic progression; the value range of the common difference of the arithmetic progression is 0.01 mm - 0.03 mm.

11. The heating element according to claim 1, characterized in that, The temperature adjustment portion includes a connection area, and on the flow path of the aerosol, the physical structure parameters of the connection area change in an arithmetic progression.

12. The heating element according to claim 11, characterized in that, The physical structure parameters of the connection area include width, and on the flow path of the aerosol, the width decreases in an arithmetic progression; and / or, the physical structure parameters of the connection area include thermal conductivity, and on the flow path of the aerosol, the thermal conductivity decreases in an arithmetic progression.

13. The heating element according to claim 1, wherein The heating element includes a plurality of heating areas, a plurality of heat dissipation areas, a plurality of connection areas, and a conductive area. The plurality of heating areas are sequentially connected in series along the flow path of the aerosol; the connection areas are arranged between adjacent two heating areas; the heat dissipation areas are oppositely arranged at both ends of the heating area in a direction perpendicular to the flow path of the aerosol; there are two conductive areas, and they are respectively electrically connected to the heating areas located upstream and downstream.

14. An atomization core component, characterized in that, Comprising a liquid storage member and a heating element as described in any one of claims 1-13, the heating element being disposed in contact with the surface of the liquid storage member.

15. An atomizing device, characterized in that, Comprising: A housing having a liquid storage chamber and an atomization channel, the liquid storage chamber being configured to store an atomization matrix; a liquid path channel is provided between the atomization channel and the liquid storage chamber so that the atomization matrix stored in the liquid storage chamber can be transferred into the atomization channel; And an atomization core assembly as described in claim 14, the atomization core assembly being disposed in the atomization channel, and the liquid storage member being disposed in contact with the inner wall of the atomization channel, the heating element being configured to heat the atomization matrix after being energized to generate an aerosol, and the flow path of the aerosol being configured to be defined by the atomization channel.

16. An atomizing device, characterized in that, Comprising a power supply assembly and an atomization device as described in claim 15, the power supply assembly being configured to supply power to the atomization device.

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