Aerosol generating device and atomizing core and atomizer thereof

Abstract

The embodiment of the invention provides an aerosol generating device, an atomizing core of the aerosol generating device and an atomizer. The atomizing core comprises a heating piece and a liquid guiding piece. The liquid guide part comprises a liquid guide unit, the liquid guide unit comprises a heat conduction layer and an insulating layer which are arranged in a stacked mode, the heating part is arranged on the insulating layer, and the insulating layer is used for isolating the heat conduction layer from the heating part and can transmit part of heat generated by the heating part to the heat conduction layer; wherein the heat conducting layer and the insulating layer are of an integrated structure. According to the atomizing core, the heat conduction layer and the insulating layer of the liquid guide part are arranged to be of the integrated structure, the gap between the heat conduction layer and the insulating layer is reduced, the liquid guide effect and the heat conduction effect of the atomizing core are further improved, the number of parts can be reduced through the integrated heat conduction layer and the insulating layer, the assembly time is shortened, and the production efficiency is improved. The assembly efficiency is improved and the manufacturing cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to an aerosol generating device and an atomizing core and an atomizer thereof. Background Art

[0002] This section is intended to provide a background or context to the embodiments described in this application. No description herein is admitted to be prior art by inclusion in this section.

[0003] An aerosol generating device is an electronic transmission system that controls the working state and smoke output through control circuits and atomizing elements for user use.

[0004] In the related art, when the viscosity of the aerosol generating matrix is ​​high, the fluidity of the aerosol generating matrix is ​​poor, which leads to the obstruction of the liquid guiding part. At the same time, the high viscosity of the aerosol generating matrix will block the flow of the ventilation bubbles, which is not conducive to the removal of the ventilation bubbles, forming bubbles of different sizes. When there are too many ventilation bubbles or the bubbles are too large, it is easy to cause the ventilation bubbles to be blocked, resulting in the obstruction of the atomization core from absorbing liquid, and the poor absorption of liquid will lead to dry burning, affecting the service life of the aerosol generating device and the user experience. Summary of the invention

[0005] In view of this, the embodiments of the present application hope to provide an aerosol generating device with better liquid conducting effect and its atomizing core and atomizer.

[0006] To achieve the above-mentioned purpose, one aspect of an embodiment of the present application provides an atomizing core for an aerosol generating device, comprising:

[0007] Heating element;

[0008] A liquid guiding part, wherein the liquid guiding part comprises a liquid guiding unit, wherein the liquid guiding unit comprises a stacked heat-conducting layer and an insulating layer, wherein the heating element is arranged on the insulating layer, wherein the insulating layer is used to isolate the heat-conducting layer from the heating element and can transfer part of the heat generated by the heating element to the heat-conducting layer; wherein the heat-conducting layer and the insulating layer are an integrated structure.

[0009] In one embodiment, the insulating layer is wrapped around the outer periphery of the thermal conductive layer.

[0010] In one embodiment, the diameter of the heat conductive layer ranges from 0.01 mm to 0.5 mm.

[0011] In one embodiment, the thickness of the insulating layer is in the range of 1 μm-20 μm.

[0012] In one embodiment, the heat-conducting layer and the insulating layer are nested one by one in the inner-outer direction, and the outermost layer of the liquid-conducting unit is the insulating layer.

[0013] In one embodiment, the liquid guiding member is a woven structure formed by weaving a plurality of the liquid guiding units.

[0014] In one embodiment, the liquid guiding member is in the shape of a hollow cylinder, and the outer diameter of the liquid guiding member is in the range of 2 mm to 4 mm.

[0015] In one embodiment, the wall thickness of the liquid guiding member is in the range of 0.5 mm to 1.5 mm.

[0016] In one embodiment, the liquid guiding member is cylindrical, and the inner diameter of the liquid guiding member ranges from 0 mm to 3 mm.

[0017] In one embodiment, the porosity of the liquid-conducting member is 0.35-0.99.

[0018] In one embodiment, the thermal conductive layer is copper, copper alloy, aluminum, aluminum alloy, nickel or nickel alloy.

[0019] In one embodiment, the insulating layer is a polyester, polyurethane, polyimide, ceramic or cotton layer.

[0020] In one embodiment, the atomizer core includes a support member, the support member includes a body, a liquid guide channel and a liquid guide hole, the liquid guide channel penetrates at least one end of the body along the axial direction of the body, and the liquid guide hole penetrates the side wall of the liquid guide channel along the radial direction of the body;

[0021] The liquid guiding member is sleeved on the outer periphery of the supporting member, and the aerosol generating matrix in the liquid guiding channel can be guided to the liquid guiding member through the liquid guiding hole.

[0022] In one embodiment, the liquid guiding member and the supporting member are an integrated structure.

[0023] Another aspect of the embodiment of the present application further provides an atomizer core, comprising:

[0024] Heating element;

[0025] A liquid guiding member, wherein the liquid guiding member comprises a heat conducting layer and an insulating layer, wherein the insulating layer is wrapped around the outer periphery of the heat conducting layer, and the heating element is arranged on the insulating layer, and the insulating layer is used to isolate the heat conducting layer and the heating element, and can transfer part of the heat generated by the heating element to the heat conducting layer;

[0026] The heat-conducting layer comprises a body, a liquid-conducting channel and a liquid-conducting hole. The liquid-conducting channel penetrates at least one end of the body along the axial direction of the body, and the liquid-conducting hole penetrates the side wall of the liquid-conducting channel along the radial direction of the body.

[0027] In one embodiment, the thermal conductive layer is a woven structure formed by copper alloy, copper, aluminum alloy, aluminum, nickel alloy and / or nickel weaving, or the thermal conductive layer is copper alloy, copper, aluminum alloy, aluminum, nickel alloy or nickel prepared by a foaming process, or the thermal conductive layer is carbon.

[0028] In one embodiment, the inner diameter of the heat conductive layer ranges from 0.5 mm to 2 mm.

[0029] In one embodiment, the outer diameter of the heat conductive layer ranges from 0.5 mm to 3 mm.

[0030] In one embodiment, the porosity of the thermal conductive layer is 0.3-0.99.

[0031] Another aspect of the embodiments of the present application provides an atomizer, comprising a liquid storage chamber and the atomization core described above, wherein the liquid storage chamber is used to store an aerosol generating matrix, and the aerosol generating matrix in the liquid storage chamber can be guided to the heating element through the liquid guiding element.

[0032] Another aspect of the embodiments of the present application further provides an aerosol generating device, comprising the above-mentioned atomizer and a power supply device matched with the atomizer.

[0033] The atomizer core provided in the embodiment of the present application includes a heating element and a liquid guide element. The liquid guide element includes a liquid guide unit, and the liquid guide unit includes a stacked heat-conducting layer and an insulating layer. The insulating layer contacts the heating element of the aerosol generating device, and the insulating layer is used to isolate the heat-conducting layer from the heating element, and to avoid the risk of short circuit between the heat-conducting layer and the heating element. By setting the heat-conducting layer, the insulating layer can transfer part of the heat generated by the heating element to the heat-conducting layer, and the heat-conducting layer can transfer the heat to the nearby aerosol generating matrix faster. The viscosity of the aerosol generating matrix near the heat-conducting layer decreases after being heated, thereby improving the fluidity of the aerosol generating matrix near the heat-conducting layer. In this way, on the one hand, it is conducive to the removal of ventilation bubbles, and while improving ventilation, the ventilation channel can be prevented from being blocked; on the other hand, the improvement of the fluidity of the aerosol generating matrix near the heat-conducting layer is conducive to the aerosol generating matrix being guided to the heating element through the liquid guide element, thereby improving the liquid guiding effect of the atomizer core. In addition, by setting the heat-conducting layer and the insulating layer as an integrated structure, the gap between the heat-conducting layer and the insulating layer is reduced, and the liquid conduction effect and heat conduction effect of the atomizer core are further improved. Furthermore, the integrated heat-conducting layer and the insulating layer can reduce the number of parts, reduce assembly time, improve assembly efficiency, and reduce manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A cross-sectional view of an atomizer according to a first embodiment of the present application;

[0035] Figure 2A cross-sectional view of a liquid guiding unit according to some embodiments of the present application;

[0036] Figure 3 This is a schematic diagram of the structure of the liquid guide member in some embodiments of the present application;

[0037] Figure 4 This is a schematic diagram of the structure of the atomizer core of some embodiments of the present application;

[0038] Figure 5 This is a schematic diagram of the structure of the support member of some embodiments of the present application;

[0039] Figure 6 This is a schematic diagram of the structure of the liquid guide member of some other embodiments of the present application;

[0040] Figure 7 A cross-sectional view of an atomizer according to a second embodiment of the present application;

[0041] Figure 8 It is a cross-sectional view of the aerosol generating device according to the first embodiment of the present application.

[0042] Description of Reference Numerals

[0043] 10. Liquid guiding part; 11. Liquid guiding unit; 111. Heat conducting layer; 112. Insulating layer; 20. Heat generating part; 30. Supporting part; 31. Main body; 100. Atomizing core; 100a. Liquid guiding channel; 100b. Liquid guiding hole; 200. Shell; 200a. Air outlet channel; 1000. Atomizer; 1000a. Liquid storage chamber; 2000. Power supply device. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0045] See also Figure 1 and Figure 8 The embodiment of the present application provides an aerosol generating device, which includes an atomizer 1000 and a power supply device 2000 matched with the atomizer 1000. The power supply device 2000 is mainly used to supply power to the atomizer 1000 and control the opening or closing of the entire aerosol generating device, and the atomizer 1000 is mainly used to accommodate an aerosol generating matrix and heat and atomize the aerosol generating matrix after power is turned on. The aerosol generating matrix includes, but is not limited to, materials used for medical treatment, health preservation, health, beauty and other purposes.

[0046] In some embodiments, see Figure 8, the atomizer 1000 and the power supply device 2000 can both be roughly cylindrical, and the two can be mechanically and electrically connected together along the axial direction. Furthermore, the atomizer 1000 and the power supply device 2000 can be connected together in a detachable manner such as a magnetic connection, a threaded connection, a snap connection, etc. The atomizer 1000 and the power supply device 2000 can both be replaced or upgraded separately, reducing the replacement cost and saving user expenses. Of course, in other embodiments, the atomizer 1000 and the power supply device 2000 can also be connected together in a non-detachable manner. In addition, the atomizer 1000 and / or the power supply device 2000 are not limited to being cylindrical, and they can also be other shapes such as an elliptical column or a square column.

[0047] It should be noted that the specific type of the aerosol generating device provided in the embodiments of the present application is not limited. By way of example, the aerosol generating device may be a medical atomization device, an air humidifier, or an atomization device such as an electronic cigarette.

[0048] The present application also provides an atomizer, see Figures 1 to 7 The atomizer 1000 includes a liquid storage chamber 1000a and an atomizer core 100 provided in any embodiment of the present application. The liquid storage chamber 1000a is used to store an aerosol generating matrix. The aerosol generating matrix in the liquid storage chamber 1000a can be guided to the heating element 20 through the liquid guide 10 of the atomizer core 100.

[0049] Exemplarily, the aerosol generating device includes a power supply device 2000, which may include a battery, for example. The power supply device 2000 is electrically connected to the atomizing core 100 of the atomizer 1000, that is, the power supply device 2000 is used to supply power to the atomizing core 100 so that the atomizing core 100 heats and atomizes the aerosol generating substrate.

[0050] In one embodiment, please refer to Figure 1 and Figure 7 The atomizer 1000 includes a shell 200, and the shell 200 forms an air outlet channel 200a. The aerosol generated by the aerosol generating matrix is ​​provided to the user through the air outlet channel 200a. It should be noted that the specific method of using the aerosol generating device is not limited here. For example, the user can inhale the aerosol through the shell 200, or can inhale the aerosol through an additional nozzle in cooperation with the shell 200.

[0051] The present application embodiment provides an atomizer core 100, see Figures 1 to 7 The atomizer core 100 includes a heating element 20 and a liquid guide element 10 , and the heating element 20 is disposed on the insulating layer 112 .

[0052] See also Figure 1 , Figures 4 to 5The atomizing core 100 includes a supporting member 30, and the supporting member 30 includes a body 31, a liquid guiding channel 100a and a liquid guiding hole 100b. The liquid guiding channel 100a penetrates at least one end of the body 31 along the axial direction of the body 31, and the liquid guiding hole 100b penetrates the side wall of the liquid guiding channel 100a along the radial direction of the body 31. The liquid guiding member 10 is sleeved on the outer periphery of the supporting member 30, and the aerosol generating matrix in the liquid guiding channel 100a can be guided to the liquid guiding member 10 through the liquid guiding hole 100b. The aerosol-generating matrix in the liquid storage chamber 1000a can enter the liquid guiding channel 100a through at least one end of the main body 31. The liquid guiding member 10 is sleeved on the outer periphery of the support member 30 and covers the outer side of the liquid guiding hole 100b. The aerosol-generating matrix in the liquid guiding channel 100a can be guided to the liquid guiding member 10 through the liquid guiding hole 100b. The heating member 20 is arranged on the liquid guiding member 10 to heat and atomize the aerosol-generating matrix to generate an aerosol for the user to inhale.

[0053] Of course, the aerosol-generating matrix in the liquid storage cavity 1000a can also be guided to the liquid guiding member 10 without passing through the liquid guiding channel 100a and the liquid guiding hole 100b, but can be directly absorbed through the part of the liquid guiding member 10 that extends into the liquid storage cavity 1000a or communicates with the liquid storage cavity 1000a.

[0054] At least one end of the liquid-conducting channel 100a of the atomizer core 100 is in communication with the liquid storage chamber 1000a, so that the atomizer core 100 heats the atomized aerosol-generating substrate to form an aerosol that can be inhaled by the user.

[0055] It should be noted that at least one end of the liquid-conducting channel 100a is connected to the liquid storage chamber 1000a, which means that the liquid-conducting channel 100a can be connected to the liquid storage chamber 1000a at one end or at both ends. In the embodiment of the present application, the two ends of the liquid-conducting channel 100a are connected to the liquid storage chamber 1000a as an example for description. In this way, not only the amount of aerosol-generating substrate entering the atomizing core 100 is increased, but also the aerosol-generating substrate can be uniformly guided to the liquid-conducting member 10 through the liquid-conducting channel 100a, thereby improving the atomization effect.

[0056] The embodiment of the present application provides an atomizer core 100, which includes a heating element 20 and a liquid guide element 10. Figures 1 to 4The liquid guiding component 10 includes a liquid guiding unit 11, and the liquid guiding unit 11 includes a stacked heat-conducting layer 111 and an insulating layer 112. The heating element 20 is arranged on the insulating layer 112. The insulating layer 112 is used to isolate the heat-conducting layer 111 from the heating element 20, and is used to avoid the risk of short circuit between the heat-conducting layer 111 and the heating element 20. The heat-conducting layer 111 can guide the aerosol generating matrix of the aerosol generating device to the insulating layer 112, that is, part of the aerosol generating matrix of the aerosol generating device can be guided to the heating element 20 through the heat-conducting layer 111 and the insulating layer 112 in sequence, and the heating element 20 can heat and atomize the aerosol generating matrix and generate an aerosol.

[0057] It should be noted that the thermal conductivity of the heat-conducting layer 111 is relatively high. When the heating element 20 heats up during operation, the insulating layer 112 can transfer part of the heat generated by the heating element 20 to the heat-conducting layer 111. The heat-conducting layer 111 can be heated quickly, thereby quickly transferring the heat to the aerosol generating matrix near the heat-conducting layer 111, thereby reducing the viscosity of the aerosol generating matrix near the heat-conducting layer 111, thereby improving the fluidity of the aerosol generating matrix near the heat-conducting layer 111.

[0058] The insulating layer 112 is in contact with the heating element 20, and is used to isolate the heat-conducting layer 111 from the heating element 20. That is, the aerosol-generating matrix is ​​guided to the heating element 20 through the heat-conducting layer 111 and the insulating layer 112 in sequence, thereby effectively preventing excessive heat loss during the heating stage, thereby reducing energy consumption and shortening the preheating time.

[0059] It should be noted that the support member 30 listed in the embodiment of the present application can be a tubular member for accommodating the aerosol generating matrix, and the tubular member is similar to a cylinder, but it is not used to limit the shape of the support member 30 in the embodiment of the present application to be similar to a cylinder. The support member 30 in the embodiment of the present application can also be other shapes such as a triangular prism, an elliptical cylinder, etc.

[0060] It should be noted that the number of layers of the heat-conducting layer 111 is not limited here. For example, the heat-conducting layer 111 can be one layer or multiple layers. The number of layers of the heat-conducting layer 111 is determined according to specific circumstances.

[0061] It should be noted that the number of layers of the insulating layer 112 is not limited here. For example, the insulating layer 112 can be one layer or multiple layers. The number of layers of the insulating layer 112 is determined according to specific circumstances.

[0062] It should be noted that, in the embodiments of the present application, multi-layer refers to a number including two layers or more.

[0063] In some embodiments, the number of the heat-conducting layer 111 and the insulating layer 112 are multiple layers, and the heat-conducting layers 111 and the insulating layers 112 are alternately arranged. In this way, while improving the liquid storage capacity of the liquid-conducting member 10, the heat-conducting layer 111 can also transfer part of the heat to the nearby aerosol generating substrate more quickly.

[0064] The materials of the heat-conducting layers 111 can be consistent or different according to the actual situation; the materials of the insulating layers 112 can be consistent or different according to the actual situation. The gap between the heat-conducting layer 111 and the insulating layer 112 can be reduced, further improving the liquid guiding effect and heat conducting effect of the liquid guiding member 10.

[0065] In some other embodiments, the number of layers of the heat conducting layer 111 may be one, and the number of layers of the insulating layer 112 may be multiple.

[0066] In some other embodiments, the number of the heat-conducting layer 111 may be multiple, and the number of the insulating layer 112 may be one.

[0067] The working characteristic of the high viscosity aerosol generating matrix is ​​that the viscosity decreases with the increase of temperature. For example, at room temperature, its viscosity is as high as 10 6 cP (centipoise), and when the temperature increases to about 70°C, its viscosity will decrease to below 1000 cP. In the related art, when the viscosity of the aerosol generating matrix is ​​high, the fluidity of the aerosol generating matrix is ​​poor, which leads to the obstruction of the liquid guiding member 10, and the poor liquid absorption will lead to dry burning, affecting the service life of the aerosol generating device and the user experience.

[0068] See also Figure 1 and Figure 2 The heat-conducting layer 111 and the insulating layer 112 are an integrated structure, that is, the liquid-conducting unit 11 is an integrated structure, and the heat-conducting layer 111 and the insulating layer 112 do not need to be assembled, thereby reducing the number of parts, reducing assembly time, improving assembly efficiency, and reducing manufacturing costs. The gap between the heat-conducting layer 111 and the insulating layer 112 can also be reduced, further improving the liquid-conducting effect and heat-conducting effect of the liquid-conducting member 10.

[0069] The liquid guide member 10 provided in the embodiment of the present application includes a liquid guide unit 11, and the liquid guide unit 11 includes a stacked heat-conducting layer 111 and an insulating layer 112. The insulating layer 112 is in contact with the heating element 20 of the aerosol generating device. The insulating layer 112 is used to isolate the heat-conducting layer 111 from the heating element 20, so as to avoid the risk of short circuit between the heat-conducting layer 111 and the heating element 20. By providing the heat-conducting layer 111, the insulating layer 112 can transfer part of the heat generated by the heating element 20 to the heat-conducting layer 111, and the heat-conducting layer 111 can transfer the heat to the heating element 20. The heat is quickly transferred to the nearby aerosol generating matrix. The viscosity of the aerosol generating matrix near the heat conductive layer 111 decreases after being heated, thereby improving the fluidity of the aerosol generating matrix near the heat conductive layer 111. In this way, on the one hand, it is conducive to the removal of ventilation bubbles, and while improving ventilation, it can prevent the ventilation channel from being blocked; on the other hand, the improvement of the fluidity of the aerosol generating matrix near the heat conductive layer 111 is conducive to the aerosol generating matrix being guided to the heating element 20 through the liquid conductive member 10, thereby improving the liquid guiding effect of the liquid conductive member 10. In addition, by setting the heat conductive layer 111 and the insulating layer 112 as an integrated structure, the gap between the heat conductive layer 111 and the insulating layer 112 is reduced, and the liquid guiding effect and heat conductive effect of the liquid conductive member 10 are further improved. Furthermore, the integrated heat conductive layer 111 and the insulating layer 112 can reduce the number of parts, reduce assembly time, improve assembly efficiency, and reduce manufacturing costs.

[0070] The specific structure of the liquid guiding unit 11 is not limited here. For example, in one embodiment, please refer to Figure 1 and Figure 2 , the insulating layer 112 is wrapped around the outer periphery of the heat-conducting layer 111. That is, the heat-conducting layer 111 is, for example, a columnar wire, and the insulating layer 112 is wrapped around the outer periphery of the columnar heat-conducting layer 111, that is, the insulating layer 112 wraps the heat-conducting layer 111 inside, so as to avoid the risk of short circuit between the heat-conducting layer 111 and the heating element 20, so that the liquid-conducting unit 11 can achieve the dual functions of insulation and heat conduction.

[0071] By wrapping the heat-conducting layer 111 inside the insulating layer 112, the insulating layer 112 can be in contact with the support member 30 through the insulating member, or in other words, the aerosol generating substrate can be directly in contact with the aerosol generating substrate through the insulating member, that is, the aerosol generating substrate does not need to contact the insulating member through the heat-conducting layer 111, thereby improving the liquid guiding effect of the liquid guiding member 10. In addition, the insulating layer 112 wraps the heat-conducting layer 111 inside, which increases the contact area between the insulating layer 112 and the heat-conducting layer 111, thereby being more conducive to the heat transfer between the insulating layer 112 and the heat-conducting layer 111.

[0072] In some embodiments, see Figures 1 to 3 The liquid guiding member 10 is a woven structure formed by weaving a plurality of liquid guiding units 11 .

[0073] Exemplarily, a plurality of liquid-conducting units 11 can be woven by a weaving machine to form a mesh liquid-conducting member 10. The mesh liquid-conducting member 10 has the dual functions of insulation and heat conduction. The mesh liquid-conducting member 10 can ensure that the liquid-conducting member 10 has good integrity and consistency, and the density and resistance of the mesh liquid-conducting member 10 can be controlled by adjusting the weaving machine parameters and weaving speed. The temperature field distribution, atomization area, etc. of the mesh liquid-conducting member 10 can be controlled by controlling the number of strands of the liquid-conducting unit 11, and then the heating efficiency of the liquid-conducting member 10 can be controlled. In other words, the number of strands of the liquid-conducting unit 11 can be controlled to adapt to aerosol generating devices of different types and requirements.

[0074] The woven structure is adopted, and gaps with capillary force are left between adjacent liquid-conducting units 11, which can also play a role in conducting liquid.

[0075] In some embodiments, see Figure 2 The diameter of the heat conducting layer 111 is Figure 2 D indicates that the diameter of the heat conducting layer 111 is in the range of 0.01 mm to 0.5 mm, for example, 0.01 mm, 0.05 mm, 0.1 mm, 0.13 mm, 0.18 mm, 0.2 mm, 0.23 mm, 0.25 mm, 0.28 mm, 0.3 mm, 0.33 mm, 0.35 mm, 0.37 mm, 0.4 mm, 0.42 mm, 0.46 mm, 0.48 mm or 0.5 mm.

[0076] By setting the diameter of the heat-conducting layer 111 to 0.01 mm-0.5 mm, the liquid-conducting unit 11 can have a certain heat-conducting function and can improve the effects that affect the liquid conduction without causing the liquid-conducting unit 11 to be too large.

[0077] It is understandable that if the diameter of the heat-conducting layer 111 is too small, the structural strength of the heat-conducting layer 111 is low, the heating wire is easy to break during the weaving process, and the structural strength of the liquid-conducting part 10 formed by weaving is low, which reduces the service life of the atomizer core 100. If the diameter of the heat-conducting layer 111 is too large, the liquid-conducting part 10 formed by weaving is easy to be too thick, which is not conducive to the circulation of the aerosol generating matrix and affects the atomization amount of the aerosol generating device. By limiting the diameter of the heat-conducting layer 111 to between 0.01mm-0.5mm, the atomization amount of the aerosol generating device can be increased while ensuring that the liquid-conducting part 10 has a certain structural strength. In addition, by limiting the diameter of the heat-conducting layer 111 to between 0.01mm-0.5mm, the heating efficiency of the atomizer core 100 can also be guaranteed.

[0078] In some embodiments, see Figure 2 The thickness of the insulating layer 112 is Figure 2L indicates that the thickness of the insulating layer 112 is in the range of 1 μm to 20 μm, for example, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm, 19 μm or 20 μm.

[0079] By setting the thickness of the insulating layer 112 to 1 μm-20 μm, the liquid-conducting unit 11 can have a certain liquid-conducting function and can also improve the effect of affecting heat conduction without causing the liquid-conducting unit 11 to be too large.

[0080] In some embodiments, see Figure 2 The heat conducting layer 111 and the insulating layer 112 of the liquid conducting member 10 are mounted one by one along the inner and outer directions, and the outermost layer of the liquid conducting unit 11 is the insulating layer 112 .

[0081] It should be noted that the inside refers to the direction close to the center of the liquid guiding unit 11, and the outside is opposite to the inside.

[0082] The outermost layer of the liquid-conducting unit 11 is an insulating layer 112 , which is beneficial for the insulating layer 112 to isolate the thermal conductive layer 111 from the heating element 20 , so as to avoid the risk of short circuit between the thermal conductive layer 111 and the heating element 20 .

[0083] For example, see Figure 1 and Figure 3 , a plurality of liquid guiding units 11 can be woven by a braiding machine to form a hollow cylindrical liquid guiding member 10. In some embodiments, the liquid guiding member 10 is hollow cylindrical, and the outer diameter of the liquid guiding member 10 ranges from 2 mm to 4 mm, for example, 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, 3.6 mm, 3.7 mm, 3.8 mm, 3.9 mm or 4 mm.

[0084] In this embodiment, there is no need to additionally set up a support member 30, that is, by using a weaving machine to weave a plurality of liquid-conducting units 11 into a cylindrical liquid-conducting member 10, so that the liquid-conducting member 10 itself has a certain structural strength, there is no need to set up a support member 30. In this way, the number of parts can be reduced, the assembly time can be reduced, the assembly efficiency can be improved, the manufacturing cost can be reduced, and the liquid-conducting performance and thermal conductivity of the liquid-conducting member 10 can also be improved.

[0085] By setting the outer diameter range of the liquid guiding member 10 to 2 mm-4 mm, it is ensured that the liquid guiding member 10 has a certain structural strength, and while having both liquid guiding performance and thermal conductivity, the outer dimensions of the liquid guiding member 10 will not be too large.

[0086] See also Figure 6 In an embodiment where a plurality of liquid guiding units 11 are woven by a braiding machine to form a hollow cylindrical liquid guiding member 10, the wall thickness of the liquid guiding member 10 ranges from 0.5 mm to 1.5 mm, for example, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm or 1.5 mm.

[0087] By setting the wall thickness of the liquid guiding member 10 to a range of 0.5 mm to 1.5 mm, it is possible to ensure that the liquid guiding member 10 has a certain structural strength and has both liquid guiding performance and thermal conductive performance.

[0088] In the embodiment where a plurality of liquid guiding units 11 are woven by a braiding machine to form a hollow cylindrical liquid guiding member 10, the porosity of the liquid guiding member 10 is 0.35-0.99. When the porosity of the liquid guiding member 10 is lower than 0.35, the liquid supply will be affected and the amount of smoke will be reduced; and when the porosity of the liquid guiding member 10 is higher than 0.99, the structural strength of the liquid guiding member 10 will be affected.

[0089] In an embodiment where a plurality of liquid guiding units 11 are woven by a braiding machine to form a cylindrical liquid guiding member 10, the inner diameter of the liquid guiding member 10 ranges from 0 mm to 3 mm, for example, 0 mm, 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm or 3 mm, etc.

[0090] By setting the inner diameter range of the liquid guiding member 10 to 0 mm-3 mm, it is ensured that the liquid guiding member 10 has a certain structural strength and has both liquid guiding performance and thermal conductive performance.

[0091] It should be noted that the specific material of the thermal conductive layer 111 is not limited. The material of the thermal conductive layer 111 can be selected from metals or alloys with different thermal conductivity according to the characteristics of the aerosol generating matrix. For example, the thermal conductive layer 111 is copper, copper alloy, aluminum, aluminum alloy, nickel or nickel alloy.

[0092] In particular, for aluminum or aluminum alloy wires, an aluminum oxide heat conductive layer 111 may be formed on the outer side of the aluminum wire with high thermal conductivity by anodizing.

[0093] Of course, the heat-conducting layer 111 may also be made of a non-metallic material with a good thermal conductivity.

[0094] It should be noted that the specific material of the insulating layer 112 is not limited. Exemplarily, the insulating layer 112 is polyester, polyurethane, polyimide, ceramic or cotton.

[0095] The material of the cotton layer can be natural organic cotton or organic synthetic high molecular porous foam cotton. The cotton layer is made of cotton fiber. Polyester, polyurethane, polyimide and other high molecular materials can stably store part of the aerosol generating matrix and quickly guide the aerosol generating matrix on one side of the heat conductive layer 111 to the heating element 20. The heating element 20 heats the aerosol generating matrix on the cotton layer to form an aerosol when powered on.

[0096] In some embodiments, the liquid guide member 10 and the support member 30 are an integrated structure. That is, by setting the liquid guide member 10 and the support member 30 as an integrated structure, that is, the heat conductive layer 111, the insulating layer 112 and the support member 30 are an integrated structure, the number of parts is further reduced, the assembly time is reduced, the assembly efficiency is improved, and the manufacturing cost is reduced.

[0097] In some embodiments, see Figures 1 to 5 The atomizer core 100 includes a support member 30, a liquid guide member 10 and a heating member 20, that is, the aerosol generating substrate in the liquid storage chamber 1000a can enter the liquid guide channel 100a through at least one end of the body 31 of the atomizer core 100, the heat conductive layer 111 is sleeved on the outer periphery of the support member 30, the insulating layer 112 is sleeved on the outer periphery of the heat conductive layer 111, the liquid guide member 10 covers the outer side of the liquid guide hole 100b, the aerosol generating substrate in the liquid guide channel 100a can be guided to the liquid guide member 10 through the liquid guide hole 100b, and the heating member 20 is arranged on the insulating layer 112, and is used to heat and atomize the aerosol generating substrate on the insulating layer 112 to generate aerosol for the user to inhale.

[0098] For example, see Figures 1 to 5 The support member 30 is a hollow tube with two ends passing through. The lumen of the hollow tube constitutes a liquid guide channel 100a, and the liquid guide hole 100b passes through the side wall of the hollow tube along the radial direction of the hollow tube.

[0099] It should be noted that the specific shape of the liquid guiding hole 100b is not limited here, including but not limited to a circular hole, an elliptical hole, a long hole, a square hole, etc.

[0100] For example, see Figure 5, the liquid guide hole 100b includes at least two rows of long holes distributed along the axial direction of the body 31. In this way, the multiple rows of long holes not only facilitate the aerosol-generating substrate in the liquid guide channel 100a to be guided to the liquid guide member 10 through the long holes in larger quantities, but also improve the liquid guide capacity of the liquid guide member 10 and the atomization efficiency of the atomizer core 100 by increasing the liquid supply area of ​​the support member 30, and can also avoid the situation where any of the long holes is blocked and the aerosol-generating substrate in the liquid guide channel 100a cannot be guided to the liquid guide member 10. Exemplary, Figure 5 The number of rows of the long holes of the support member 30 distributed along the axial direction of the body 31 shown is 2, which can ensure that the long holes have sufficient length and can also ensure the liquid supply area of ​​the support member 30. If the number of rows of the long holes distributed along the axial direction of the body 31 is 3 or more, the long holes may be too short, thereby reducing the liquid supply area of ​​the support member 30. If there is only one row, if the liquid guide hole 100b is too short, the liquid guide area is insufficient, and if the liquid guide hole 100b is too long, the strength is insufficient.

[0101] It should be noted that, in the embodiment of the present application, at least two rows refers to a number including two rows and more than two rows.

[0102] It should be noted that the long hole can be a rectangular hole. In the embodiment of the present application, arcs are set at both ends of the long hole for smooth transition. In this way, the strength of the body 31 is improved and the body 31 can be made more beautiful. Figure 5 , the diameter of the arcs at both ends of the long hole is equal to the width of the long hole.

[0103] See also Figure 1 and Figure 4 The heating element 20 is disposed on the insulating layer 112 of the liquid guide 10, and is used to heat and atomize the aerosol generating matrix to generate an aerosol for the user to inhale. The heating element 20 includes but is not limited to a heating wire, a heating net, and a heating belt, wherein the heating wire is, for example, a circular heating wire, and of course, it can also be a heating wire of other shapes. In the embodiment of the present application, the heating element 20 is described as a heating wire that is spirally wound around the outer periphery of the insulating layer 112.

[0104] It should be noted that the specific shape of the liquid-conducting channel 100a is not limited here. The cross-sectional shape of the liquid-conducting channel 100a includes but is not limited to a circle, an ellipse, or a rounded polygon, such as a rounded triangle, etc. For example, in one embodiment, refer to Figure 5 The cross-sectional shape of the liquid-conducting channel 100a is circular, which is conducive to the smooth flow of the aerosol-generating substrate in the liquid-conducting channel 100a. The cross-sectional shape of the liquid-conducting channel 100a refers to the cross-sectional shape of the liquid-conducting channel 100a cut along a plane perpendicular to the axial direction of the body 31.

[0105] It should be noted that the liquid guide holes 100b of the support member 30 are generally processed by laser. Compared with the long holes, processing a circular hole array of hundreds of microns on the circumference requires a long laser stroke and takes a long time, resulting in low processing efficiency and increased processing costs.

[0106] The atomizer core 100 provided in the embodiment of the present application includes a support member 30, a liquid guide member 10 and a heating member 20, wherein the support member 30 includes a body 31, a liquid guide channel 100a and a liquid guide hole 100b, the liquid guide channel 100a penetrates both ends of the body 31 along the axial direction of the body 31, and the liquid guide hole 100b penetrates the side wall of the liquid guide channel 100a along the radial direction of the body 31. It can be understood that the liquid supply area of ​​the support member 30 is the total area of ​​all the liquid guide holes 100b on the body 31. By setting the liquid guide holes 100b to include at least two rows of long strip holes distributed along the axial direction of the body 31, on the one hand, the liquid supply area of ​​the support member 30 is increased, and more aerosol generation substrates are available for atomization on the support member 30, thereby improving the liquid supply capacity and atomization efficiency of the atomization core 100. Under the condition of keeping the temperature unchanged, the aerosol generation amount per unit time of the atomization core 100 is greater; on the other hand, at least two rows of long strip holes distributed along the axial direction of the body 31 can ensure that the support member 30 has a certain liquid supply area. The two adjacent rows of long strip holes can be connected by the side wall of the liquid guide channel 100a, thereby improving the structural strength of the support member 30. In addition, by setting the liquid guide holes 100b to include at least two rows of long strip holes distributed along the axial direction of the body 31, compared with other holes such as circular holes, under the condition of having the same liquid supply area, the cutting circumference required for the processing of the long strip holes is short, easy to process, and the processing steps are reduced, thereby improving the processing efficiency and reducing the processing cost.

[0107] In one embodiment, please refer to Figure 1 and Figure 5 , the long strip holes extend along the axial direction of the body 31, that is, the length direction of the long strip holes is arranged along the axial direction of the body 31, that is, the length direction of the long strip holes is the same as the axial direction of the body 31. In this way, under the premise of ensuring that the support member 30 has a certain liquid supply area, two adjacent rows of long strip holes can be connected through the side wall of the liquid guide channel 100a, thereby improving the structural strength of the support member 30. In addition, the processing efficiency is also improved.

[0108] In one embodiment, the elongated holes extend along the circumference of the body 31, that is, the length direction of the elongated holes is arranged along the circumference of the body 31, that is, the length direction of the elongated holes is approximately perpendicular to the axial direction of the body 31. In this way, on the premise of ensuring that the support member 30 has a certain liquid supply area, two adjacent rows of elongated holes can be connected through the side wall of the liquid guide channel 100a, thereby improving the structural strength of the support member 30, and more elongated holes can be arranged along the axial direction of the body 31, further increasing the liquid supply area of ​​the support member 30. In addition, the processing efficiency is also improved.

[0109] In some other embodiments, the extension direction of the elongated hole is inclined with respect to the axial direction of the body 31 , that is, the length direction of the elongated hole is arranged at a certain angle with respect to the axial direction of the body 31 .

[0110] In one embodiment, the support member 30 is a metal member, that is, the support member 30 is made of metal material. In this way, it is convenient to control the size of the support member 30 during the manufacturing process. The metal material can control the dimensional accuracy and error better during the processing, so that the processing accuracy is higher, for example, it can be made very thin. At the same time, the metal material itself has a certain thermal conductivity, which can improve the atomization efficiency of the atomizer core 100. That is, the support member 30 made of metal material has the functions of support, liquid conduction and heat conduction at the same time. By improving the thermal conductivity of the support member 30, the thermal conductive layer 111 can transfer heat to the support member 30 more quickly, and the support member 30 can then transfer heat to the aerosol generating matrix nearby, in the liquid conducting channel 100a or the liquid storage chamber 1000a more quickly. The viscosity of the aerosol generating matrix decreases after being heated, thereby improving the fluidity of the aerosol generating matrix near the support member 30, in the liquid conducting channel 100a or the liquid storage chamber 1000a. While improving ventilation, it is beneficial for the aerosol generating matrix to be guided to the heating element 20 via the liquid conducting member 10, thereby improving the liquid conducting effect of the liquid conducting member 10.

[0111] Exemplarily, the support member 30 is made of, for example, stainless steel, aluminum alloy, brass alloy, etc. In the embodiment of the present application, the support member 30 is made of, for example, 304 stainless steel.

[0112] Of course, the support member 30 can also be made of glass, specifically any one of borosilicate glass, quartz glass or photosensitive lithium aluminosilicate glass. In other embodiments, the material of the support member 30 can also be a component with a certain mechanical strength such as ceramics, metals, hard plastics, polymers and other inorganic non-materials.

[0113] The support member 30 is made of metal material. Under the condition of ensuring strength and safety, the support member 30 can be appropriately thinned by using metal material, that is, the wall thickness of the body 31 can be appropriately thinned, thereby reducing the mass of the support member 30, thereby reducing the heat capacity consumption of the support member 30 and improving the heating efficiency of the atomizer core 100; in this way, under the condition of the same outer diameter, the inner diameter of the body 31 can be made larger, and the macro flow resistance in the liquid guide channel 100a can be smaller; in addition, by reducing the wall thickness of the body 31, the path of the aerosol generating matrix flowing from the liquid guide channel 100a to the liquid guide member 10 is shortened, further reducing the flow resistance of the aerosol generating matrix, thereby improving the liquid supply capacity and atomization effect of the atomizer core 100.

[0114] In one embodiment, the liquid guide hole 100b includes at least two rows of long holes distributed along the circumference of the body 31. Exemplarily, the number of rows of long holes distributed along the circumference of the body 31 is 4. In this way, the multiple rows of long holes not only facilitate the aerosol-generating substrate in the liquid guide channel 100a to be guided to the liquid guide member 10 through the long holes in larger quantities, but also improve the liquid supply capacity and atomization efficiency of the atomization core 100 by increasing the liquid supply area of ​​the support member 30, and can also avoid the situation where any row of long holes is blocked and the aerosol-generating substrate in the liquid guide channel 100a cannot be guided to the liquid guide member 10.

[0115] It should be noted that, in the embodiment of the present application, at least two columns refers to a number including two columns and more than two columns.

[0116] In one embodiment, two adjacent rows of long holes are arranged in a staggered manner, so that the structural strength of the support member 30 can be improved.

[0117] In one embodiment, please refer to Figure 5 Two adjacent rows of long holes are arranged side by side. In this way, the processing efficiency is improved while the aesthetics of the support member 30 is improved.

[0118] The liquid guide holes 100b are symmetrically distributed on the body 31. The symmetrical structure of the liquid guide holes 100b can reduce the manufacturing cost of laser processing. In addition, the liquid guide holes 100b are symmetrically distributed on the body 31, so that the aerosol-generating matrix in the liquid guide channel 100a can be uniformly guided to the liquid guide member 10 through the liquid guide holes 100b, thereby improving the atomization effect. Exemplarily, in one embodiment, the liquid guide holes 100b are symmetrically distributed along the axial direction of the body 31. In other embodiments, the liquid guide holes 100b are symmetrically distributed along the circumference of the body 31. In still other embodiments, the liquid guide holes 100b are symmetrically distributed along the central axis of the body 31.

[0119] In one embodiment, the length of the body 31 along the axial direction is greater than the length of the liquid guide member 10 along the axial direction. That is to say, the portion of the body 31 extending axially from the liquid guide member 10 can be arranged in the liquid storage chamber 1000a, so that the heat conductive layer 111 can transfer heat to the support member 30 more quickly, and the support member 30 can transfer heat to the aerosol generating matrix in the liquid storage chamber 1000a more quickly through the portion extending into the liquid storage chamber 1000a. The viscosity of the aerosol generating matrix decreases after being heated, thereby improving the fluidity of the aerosol generating matrix located near the support member 30 in the liquid storage chamber 1000a, while improving ventilation, which is conducive to the aerosol generating matrix being guided to the heating element 20 through the liquid guide member 10, thereby improving the liquid guiding effect and atomization effect of the atomization core 100.

[0120] In one embodiment, the axial length of the heat conductive layer 111 is greater than the axial length of the insulating layer 112, that is, the axial length of the heat conductive layer 111 along the support member 30 is greater than the axial length of the insulating layer 112 along the support member 30. In this way, the contact area between the heat conductive layer 111 and the support member 30 and the aerosol generating matrix can be increased, that is, more heat can be further conducted to the support member 30 faster, and then the support member 30 can conduct the heat to the aerosol generating matrix near the support member 30 faster, so as to reduce the fluidity of the aerosol generating matrix near the heat conductive layer 111, thereby improving the liquid conducting effect and ventilation of the liquid conducting member 10.

[0121] In one embodiment, please refer to Figure 5 , the inner diameter of the body 31 is 0.3mm-3mm, that is, the diameter of the liquid-conducting channel 100a is 0.3mm-3mm. If the inner diameter of the body 31 is too small, that is, the diameter of the liquid-conducting channel 100a is too small, it will affect the flow of the aerosol-generating matrix in the liquid-conducting channel 100a, reduce the liquid supply capacity of the atomizer core 100, and then reduce the atomization efficiency of the atomizer 1000. If the inner diameter of the body 31 is too large, the volume of the atomizer core 100 is large, which will occupy the internal space of the atomizer 1000 on the one hand, and on the other hand, it will also cause the volume of the atomizer 1000 to be large, which is not conducive to the beauty of the product. By limiting the inner diameter of the body 31 to between 0.3mm-3mm, the aesthetics of the atomizer 1000 can be improved while ensuring the liquid supply capacity of the atomizer core 100. It can be understood that the inner diameter of the body 31 is selected according to actual needs, for example, the inner diameter of the body 31 is determined according to the size of the specific cigarette cartridge.

[0122] In one embodiment, please refer to Figure 5, the axial length of the body 31 is 3mm-30mm. It is understandable that the longer the axial length of the body 31, the longer the corresponding liquid guide 10 will be, the larger the range covered by the heating element 20 will be, and the larger the liquid supply area of ​​the liquid guide hole 100b will be. In this way, if the axial length of the body 31 is too small, the liquid supply capacity and atomization efficiency of the atomizer core 100 will be reduced. If the axial length of the body 31 is too large, the volume of the atomizer core 100 will be large, which will occupy the internal space of the atomizer 1000 on the one hand, and on the other hand, it will also cause the volume of the atomizer 1000 to be large, which is not conducive to the beauty of the product. By limiting the axial length of the body 31 to between 3mm-30mm, the aesthetics of the atomizer 1000 can be improved while ensuring the liquid supply capacity and atomization efficiency of the atomizer core 100. It is understandable that the axial length of the body 31 is selected according to actual needs, for example, the axial length of the body 31 is determined according to the size of the specific cigarette cartridge.

[0123] In one embodiment, please refer to Figure 5 , the wall thickness of the body 31 is 0.05mm-0.2mm. It is understandable that, under the condition of ensuring strength and safety, the wall thickness of the body 31 can be reduced as much as possible, so that the mass of the body 31 is reduced, thereby reducing the heat capacity consumption of the body 31 and improving the heating efficiency of the atomizer core 100; in addition, under the condition of the same outer diameter, the inner diameter of the body 31 can be made larger, and the macro flow resistance in the liquid guide channel 100a is smaller; in addition, by reducing the wall thickness of the body 31, the path of the aerosol generating matrix flowing from the liquid guide channel 100a to the liquid guide member 10 is shortened, further reducing the flow resistance of the aerosol generating matrix, thereby improving the liquid supply capacity and atomization effect of the atomizer core 100.

[0124] In one embodiment, please refer to Figure 5 , the width of the long hole is 0.3mm-0.8mm. It can be understood that if the width of the long hole is too small, it will be unfavorable for the circulation of the aerosol generating matrix, that is, it will reduce the liquid supply capacity of the atomizer core 100 and reduce the atomization efficiency of the atomizer 1000. If the width of the long hole is too large, the structural strength of the support member 30 will be reduced, thereby reducing the service life of the atomizer core 100. At the same time, if the width of the long hole is too large, it may cause leakage. By limiting the width of the long hole to between 0.3mm-0.8mm, the service life of the atomizer core 100 can be extended while ensuring the atomization efficiency of the atomizer 1000.

[0125] In one embodiment, please refer to Figure 5, the length of the long hole is 1mm-3mm. It is understandable that if the length of the long hole is too small, it will be unfavorable for the circulation of the aerosol generating matrix, that is, it will reduce the liquid supply capacity of the atomizer core 100 and reduce the atomization efficiency of the atomizer 1000. If the length of the long hole is too large, the structural strength of the support member 30 will be reduced, thereby reducing the service life of the atomizer core 100. At the same time, if the width of the long hole is too large, it may cause leakage. By limiting the length of the long hole to between 1mm-3mm, the service life of the atomizer core 100 can be extended while ensuring the atomization efficiency of the atomizer 1000.

[0126] In one embodiment, please refer to Figure 5 , the spacing between two adjacent rows of long holes distributed axially along the body 31 is 0.6mm-1.2mm. It should be noted that the spacing between two adjacent rows of long holes distributed axially along the body 31 is similar to the micro-ribs between two adjacent rows of long holes, that is, the two adjacent rows of long holes are connected by micro-ribs to ensure the strength of the support 30. If the spacing between two adjacent rows of long holes is too small, the structural strength of the support 30 will be reduced, thereby reducing the service life of the atomizer core 100. If the spacing between two adjacent rows of long holes is too large, the liquid supply area of ​​the support 30 will be reduced, thereby reducing the liquid supply capacity and atomization efficiency of the atomizer core 100. By limiting the spacing between two adjacent rows of long holes distributed axially along the body 31 to between 0.6mm-1.2mm, the service life of the atomizer core 100 can be extended while ensuring the liquid supply capacity and atomization efficiency of the atomizer 1000.

[0127] In one embodiment, please refer to Figure 5 , the spacing between the elongated hole closest to the end of the body 31 and the end of the body 31 is 1mm-3mm. It should be noted that the elongated hole closest to the end of the body 31 is the edge hole at both ends of the body 31. If the spacing between the edge hole and the end of the body 31 is too large, the liquid supply area of ​​the support member 30 will be reduced, thereby reducing the liquid supply capacity and atomization efficiency of the atomizer core 100. If the spacing between the edge hole and the end of the body 31 is too small, the structural strength of the support member 30 will be reduced, thereby reducing the service life of the atomizer core 100. By limiting the spacing between the elongated hole closest to the end of the body 31 and the end of the body 31 to between 1mm-3mm, the service life of the atomizer core 100 can be extended while ensuring the atomization efficiency of the atomizer 1000.

[0128] In a specific embodiment, the axial length of the body 31 is 8 mm, the length of the elongated hole is 1.8 mm, the width of the elongated hole is 0.5 mm, and the spacing between two adjacent rows of elongated holes distributed along the axial direction of the body 31 is 0.8 mm.

[0129] In other embodiments, the equivalent aperture of the liquid guide hole 100b is 0.01 mm-3 mm. This prevents the circulation of the aerosol-generating matrix from being affected by a too small aperture, that is, reducing the liquid supply capacity of the atomizer core 100, and the structural strength of the support member 30 from being reduced due to an overly large aperture, thereby reducing the service life of the atomizer core 100. At the same time, if the aperture is too large, leakage may occur.

[0130] In some other embodiments, please refer to Figure 7 , the atomizer core 100 includes a heating element 20 and a liquid guide element 10. The liquid guide element 10 includes a heat-conducting layer 111 and an insulating layer 112. The insulating layer 112 is wrapped around the outer periphery of the heat-conducting layer 111. The heating element 20 is arranged on the insulating layer 112. The insulating layer 112 is used to isolate the heat-conducting layer 111 and the heating element 20, and can transfer part of the heat generated by the heating element 20 to the heat-conducting layer 111. The heat-conducting layer 111 includes a body 31, a liquid guide channel 100a and a liquid guide hole 100b. The liquid guide channel 100a penetrates at least one end of the body 31 along the axial direction of the body 31, and the liquid guide hole 100b penetrates the side wall of the liquid guide channel 100a along the radial direction of the body 31.

[0131] In this embodiment, it is not necessary to set the support member 30, and the heat-conducting layer 111 is set to include the body 31, the liquid-conducting channel 100a and the liquid-conducting hole 100b. The aerosol-generating matrix in the liquid storage chamber 1000a can enter the liquid-conducting channel 100a through at least one end of the body 31. The insulating layer 112 is wrapped around the periphery of the heat-conducting layer 111 and covers the outside of the liquid-conducting hole 100b. The aerosol-generating matrix in the liquid-conducting channel 100a can be guided to the insulating layer 112 through the liquid-conducting hole 100b. The heating element 20 is set on the heat-conducting layer 111 to heat and atomize the aerosol-generating matrix to generate an aerosol for the user to inhale, that is, the heat-conducting layer 111 in this embodiment has both a supporting function and a liquid-conducting and heat-conducting function. In addition, the number of parts is reduced, the assembly time is reduced, the assembly efficiency is improved, and the manufacturing cost is reduced.

[0132] In some embodiments, the thermal conductive layer 111 is a braided structure formed by braiding copper alloy, copper, aluminum alloy, aluminum, nickel alloy and / or nickel.

[0133] Exemplarily, copper alloy, copper, aluminum alloy, aluminum, nickel alloy and / or nickel can be woven by a braiding machine to form a mesh heat-conducting layer 111, and a liquid-conducting channel 100a and a liquid-conducting hole 100b of the heat-conducting layer 111 are formed. The mesh heat-conducting layer 111 has the dual functions of support and heat conduction. The mesh heat-conducting layer 111 can ensure that the liquid-conducting layer has good integrity and consistency, and can also control the density and resistance of the mesh liquid-conducting member 10 by adjusting the braiding machine parameters and the braiding speed. The temperature field distribution, atomization area, etc. of the mesh liquid-conducting layer can be controlled by controlling the number of strands of copper alloy, copper, aluminum alloy, aluminum, nickel alloy and / or nickel, and then the liquid-conducting efficiency and heat-conducting efficiency of the liquid-conducting layer can be controlled. That is, the porosity of the liquid-conducting layer can be controlled by controlling the number of strands of copper alloy, copper, aluminum alloy, aluminum, nickel alloy and / or nickel, so as to adapt to aerosol generating devices of different types and requirements.

[0134] That is, the insulating high thermal conductivity enameled wire is woven into a three-dimensional porous woven material with a certain three-dimensional structure and a certain strength.

[0135] In other embodiments, the heat conducting layer 111 is formed by a copper alloy, an aluminum alloy or a nickel alloy through a foaming process. That is, the copper alloy, copper, aluminum alloy, aluminum, nickel alloy or nickel is formed through a foaming process, and the liquid conducting channel 100a and the liquid conducting hole 100b are formed at the same time. The preparation process is simple, and the liquid conducting channel 100a and the liquid conducting hole 100b can be formed at the same time, with high production efficiency and low manufacturing cost.

[0136] Of course, in some other embodiments, the heat conducting layer 111 may also be carbon.

[0137] For some examples, see Figure 7 The outer diameter of the heat conducting layer 111 is in the range of 0.5 mm to 3 mm, for example, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm or 3 mm.

[0138] In this embodiment, by setting the outer diameter range of the liquid conducting layer to 0.5 mm-3 mm, it is ensured that the liquid conducting layer has a certain structural strength and has both liquid conducting performance and thermal conductivity while ensuring that the outer dimensions of the liquid conducting layer are not too large.

[0139] For some examples, see Figure 7The inner diameter of the heat conducting layer 111 is in the range of 0.5 mm to 2 mm, for example, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm or 2 mm.

[0140] In this embodiment, by setting the inner diameter range of the heat conductive layer 111 to 0.5 mm-2 mm, it is ensured that the liquid conductive layer has a certain structural strength, and while having both liquid conductive performance and heat conductive performance, the outer dimensions of the liquid conductive layer will not be too large.

[0141] In some embodiments, the porosity of the heat conductive layer 111 is 0.3-0.99. When the porosity of the liquid conductive layer is lower than 0.3, the liquid supply will be affected and the amount of smoke will be reduced; and when the porosity of the liquid conductive layer is higher than 0.99, the structural strength of the liquid conductive layer will be affected.

[0142] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0143] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An atomizing core for an aerosol generating device, characterized in that: include: Heating element; A liquid guiding part, wherein the liquid guiding part comprises a liquid guiding unit, wherein the liquid guiding unit comprises a stacked heat-conducting layer and an insulating layer, wherein the heating element is arranged on the insulating layer, wherein the insulating layer is used to isolate the heat-conducting layer from the heating element and can transfer part of the heat generated by the heating element to the heat-conducting layer; wherein the heat-conducting layer and the insulating layer are an integrated structure.

2. The atomizer core according to claim 1, characterized in that: The insulating layer is wrapped around the outer periphery of the heat conducting layer.

3. The atomizer core according to claim 2, characterized in that: The diameter of the heat-conducting layer is in the range of 0.01 mm to 0.5 mm; and / or the thickness of the insulating layer is in the range of 1 μm to 20 μm.

4. The atomizer core according to claim 1, characterized in that: The heat-conducting layer and the insulating layer are nested one by one along the inner and outer directions, and the outermost layer of the liquid-conducting unit is the insulating layer.

5. The atomizer core according to any one of claims 1 to 4, characterized in that: The liquid guiding member is a woven structure formed by weaving a plurality of the liquid guiding units.

6. The atomizer core according to claim 5, characterized in that: The liquid guiding member is in the shape of a hollow cylinder, and the outer diameter of the liquid guiding member is in the range of 2 mm to 4 mm; and / or the wall thickness of the liquid guiding member is in the range of 0.5 mm to 1.5 mm.

7. The atomizer core according to claim 5, characterized in that: The liquid-conducting member is cylindrical, and the inner diameter of the liquid-conducting member ranges from 0 mm to 3 mm; and / or the porosity of the liquid-conducting member is 0.35 to 0.

99.

8. The atomizer core according to any one of claims 1 to 4, characterized in that: The heat conducting layer is copper, copper alloy, aluminum, aluminum alloy, nickel or nickel alloy.

9. The atomizer core according to any one of claims 1 to 4, characterized in that: The insulating layer is a polyester, polyurethane, polyimide, ceramic or cotton layer.

10. The atomizer core according to any one of claims 1 to 4, characterized in that: The atomizer core includes a support member, the support member includes a body, a liquid guide channel and a liquid guide hole, the liquid guide channel penetrates at least one end of the body along the axial direction of the body, and the liquid guide hole penetrates the side wall of the liquid guide channel along the radial direction of the body; The liquid guiding member is sleeved on the outer periphery of the supporting member, and the aerosol generating matrix in the liquid guiding channel can be guided to the liquid guiding member through the liquid guiding hole.

11. The atomizer core according to claim 10, characterized in that: The liquid guiding member and the supporting member are an integrated structure.

12. An atomizing core for an aerosol generating device, characterized in that: include: Heating element; A liquid guiding member, wherein the liquid guiding member comprises a heat conducting layer and an insulating layer, wherein the insulating layer is wrapped around the outer periphery of the heat conducting layer, and the heating element is arranged on the insulating layer, and the insulating layer is used to isolate the heat conducting layer and the heating element, and can transfer part of the heat generated by the heating element to the heat conducting layer; The heat-conducting layer comprises a body, a liquid-conducting channel and a liquid-conducting hole. The liquid-conducting channel penetrates at least one end of the body along the axial direction of the body, and the liquid-conducting hole penetrates the side wall of the liquid-conducting channel along the radial direction of the body.

13. The atomizer core according to claim 12, characterized in that: The thermal conductive layer is a woven structure formed by copper alloy, copper, aluminum alloy, aluminum, nickel alloy and / or nickel weaving, or the thermal conductive layer is copper alloy, copper, aluminum alloy, aluminum, nickel alloy or nickel prepared by a foaming process, or the thermal conductive layer is carbon.

14. The atomizer core according to claim 12, characterized in that: The inner diameter of the heat conducting layer is in the range of 0.5 mm to 2 mm; and / or, The outer diameter of the heat conducting layer is in the range of 0.5 mm to 3 mm; and / or, The porosity of the heat-conducting layer is 0.3-0.

99.

15. An atomizer, characterized in that: It comprises a liquid storage chamber and the atomizer core according to any one of claims 1 to 14, wherein the liquid storage chamber is used to store an aerosol generating matrix, and the aerosol generating matrix in the liquid storage chamber can be guided to the heating element through the liquid guiding element.

16. An aerosol generating device, characterized in that: It comprises the atomizer as claimed in claim 15 and a power supply device matched with the atomizer.

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