Atomizing core, atomizing assembly and atomizing device

Abstract

The utility model discloses an atomization core, an atomization assembly and an atomization device, and the atomization core comprises a substrate which is provided with a liquid absorption surface and an atomization surface which are opposite to each other; the substrate is provided with a plurality of first through holes extending from the liquid absorbing surface to the atomizing surface; the heating element is arranged on the atomization surface of the substrate; the electrode pair is arranged on the atomization surface of the substrate and is electrically connected with the heating element; wherein the shape of the cross section of the first through hole is a non-centrosymmetric graph. The first through hole of the atomization core is arranged to be the through hole with the cross section shape being the non-centrosymmetric graph, so that the overlap ratio of the cross section shape of the first through hole and the circular shape of the bubble is reduced, and the bubble is not prone to staying in the through hole or even developing to block the through hole. Therefore, the air bubbles can be prevented from returning into the liquid storage cavity to cause dry burning of the heating body, and the use safety of the atomizing core is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomizers, and in particular to an atomizer core, an atomizer assembly, and an atomizer device. Background Art

[0002] At present, the liquid-conducting materials used in atomizer cores are mostly cotton or ceramic materials. Cotton or ceramic materials are porous media structures. When conducting liquid, due to the uneven distribution of pores inside the liquid-conducting materials and even the existence of blind holes, problems such as carbon deposition and core sticking may occur after long-term use, affecting safety and user experience. Therefore, one solution is to process multiple through holes on the liquid-conducting material.

[0003] However, even machining multiple through-holes in the liquid-conducting material doesn't effectively solve the aforementioned problem. This is primarily because these through-holes can easily trap bubbles, sometimes growing larger until they fill the holes. This clogs the holes, making it difficult for bubbles to escape. Instead, they easily flow through the microchannels into the liquid reservoir. Bubbles that return to the liquid reservoir have a high risk of blocking the atomizer core's liquid intake surface, hindering liquid flow and ultimately causing the core to dry out. Utility Model Content

[0004] The embodiments of the present application provide an atomizer core, an atomizer assembly, and an atomizer device, which can avoid the phenomenon of dry burning of the atomizer core caused by bubbles blocking the liquid absorption surface.

[0005] In a first aspect, an embodiment of the present application provides an atomizer core, comprising:

[0006] A substrate having a liquid absorption surface and an atomization surface opposite to each other; the substrate having a plurality of first through holes extending from the liquid absorption surface to the atomization surface;

[0007] A heating element is provided on the atomized surface of the substrate;

[0008] an electrode pair, disposed on the atomized surface of the substrate and electrically connected to the heating element;

[0009] Wherein, the cross-sectional shape of the first through hole is a non-centrosymmetrical figure.

[0010] In some embodiments, the first through hole is arranged to pass through the heating element; the non-centrally symmetrical figure includes a first figure and a second figure connected to one side of the first figure; along a first direction consistent with the width direction of the first through hole, the outline size of the first figure is greater than or equal to the outline size of the second figure.

[0011] In some embodiments, the first graphic is a circle or a polygon; the second graphic is a strip.

[0012] In some embodiments, the first figure is a regular polygon, and the second figure is a rectangle; the short side of the rectangle coincides with a side of the regular polygon.

[0013] In some embodiments, the plurality of first through holes are arranged in a plurality of rows, and the row direction is parallel to the first direction; the second pattern is connected to one side of the first pattern along a second direction, and the second direction intersects the first direction;

[0014] The electrode pair includes two electrodes, and the two electrodes are arranged on opposite sides of the heating element along the first direction.

[0015] In some embodiments, the non-centrosymmetrical patterns in the same row are arranged in a wavy line shape.

[0016] In some embodiments, the plurality of rows of first through holes are axially symmetrically distributed, and the axis of symmetry extends along the first direction; the second figure is located on a side of the first figure close to the axis of symmetry; and the second direction is perpendicular to the first direction.

[0017] In some embodiments, the substrate further has a plurality of second through holes extending from the liquid absorption surface to the atomization surface; the cross-sectional shape of the second through holes is a centrally symmetrical figure; the plurality of second through holes are arranged along the first direction and are axially symmetrically distributed; the plurality of rows of the first through holes coincide with the symmetry axes of the plurality of the second through holes, and along the second direction, the plurality of rows of the first through holes are respectively located on opposite sides of each of the second through holes.

[0018] In some embodiments, the second through holes are arranged into two groups, and the two groups of second through holes form intersecting wavy lines; and / or, along the direction close to the axis of symmetry, the length of the second graphics of multiple rows of first through holes in the second direction gradually decreases.

[0019] In some embodiments, the substrate is an intrinsic silicon substrate; wherein the heating element is a doped conductive silicon substrate, the surface of the intrinsic silicon substrate close to the electrode pair has a receiving groove, and the conductive silicon substrate is embedded in the receiving groove; or, the heating element is a conductive silicon layer formed by doping on the atomized surface of the intrinsic silicon substrate.

[0020] In a second aspect, an embodiment of the present application provides an atomization assembly for an electronic atomization device, comprising:

[0021] a liquid storage chamber for storing an aerosol-generating matrix;

[0022] An atomizing core is used to atomize the aerosol-generating matrix from the liquid storage chamber; the atomizing core is any one of the atomizing cores described above.

[0023] In a third aspect, an embodiment of the present application provides an atomization device, comprising an atomization assembly and a battery assembly, wherein the atomization assembly is the atomization assembly described above, and the battery assembly is used to provide energy for the operation of the atomization assembly.

[0024] The beneficial effect of the present application is that, by configuring the first through hole of the atomizer core to have a non-centrosymmetrical cross-sectional shape, the overlap between the cross-sectional shape of the first through hole and the circular shape of the bubbles is reduced, making it less likely for bubbles to remain in the through hole or even grow and clog the through hole. This prevents bubbles from returning to the liquid storage chamber and causing dry burning of the heating element, thereby improving the safety of the atomizer core. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a schematic diagram of the shape and arrangement of the first through hole in one embodiment of the present application;

[0027] Figure 2 is a schematic cross-sectional view of the present application;

[0028] Figure 3 is a schematic diagram of the shape and arrangement of the first through hole in another embodiment of the present application;

[0029] Figure 4 Schematic diagram of the shape and arrangement of the first through holes in another embodiment of the present application;

[0030] Figure 5 Schematic diagram of the shape and arrangement of the first through holes in yet another embodiment of the present application;

[0031] Figure 6 This is a schematic diagram of the shape and arrangement of the first through hole in one embodiment of the present application;

[0032] Figure 7 This is a schematic diagram of the shapes and arrangements of the first through holes and the second through holes of another embodiment of the present application;

[0033] Figure 8 This is a schematic diagram of the shapes and arrangements of the first through holes and the second through holes in one embodiment of the present application;

[0034] Figure 9 Schematic diagram of the shapes and arrangements of the first through holes and the second through holes according to another embodiment of the present application;

[0035] Figure 10is a schematic diagram of the shape and arrangement of the second through holes in one embodiment of the present application;

[0036] Figure 11 This is a schematic diagram of the structure of an atomizing assembly according to an embodiment of the present application;

[0037] Figure 12 This is a schematic structural diagram of an atomizing assembly according to another embodiment of the present application;

[0038] Figure 13 It is a schematic structural diagram of an atomization device according to an embodiment of the present application.

[0039] Explanation of the accompanying reference numerals: 10 - substrate; 11 - first through hole; 20 - heating element; 30 - electrode pair; 110 - first graphic; 120 - second graphic; 310 - electrode; 12 - second through hole; 40 - liquid storage chamber; 50 - atomizer core; 60 - nozzle; 70 - atomizer assembly; 80 - battery assembly. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0041] Please refer to the attached Figures 1 to 2 One embodiment of the present application provides an atomizer core, comprising:

[0042] The substrate 10 has a liquid absorption surface and an atomization surface opposite to each other; the substrate 10 has a plurality of first through holes 11 extending from the liquid absorption surface to the atomization surface;

[0043] The heating element 20 is disposed on the atomized surface of the substrate;

[0044] The electrode pair 30 is disposed on the atomized surface of the substrate and is electrically connected to the heating element 20;

[0045] The cross-sectional shape of the first through hole 11 is a non-centrosymmetrical figure.

[0046] The substrate 10 is used to conduct the aerosol matrix in the liquid storage chamber. Specifically, the liquid absorption surface is used to absorb the aerosol matrix in the liquid storage chamber. The atomization surface is used to contact the aerosol matrix with gas. The first through hole 11 is used to conduct liquid. The heating element 20 is used to heat the substrate 10 to atomize the aerosol matrix. The electrode pair 30 is used to apply electricity to heat the heating element 20.

[0047] In this embodiment, the cross-sectional shape of the first through-hole 11 is configured as a non-centrosymmetric shape to reduce the overlap between the cross-sectional shape of the first through-hole 11 and the circular shape of the bubble, making it less likely for the bubble to remain in the through-hole or even expand and block the through-hole. A centrosymmetric shape refers to a shape that can overlap with the original shape after being rotated 180 degrees about its center point. For details, please refer to the description provided in the following embodiments.

[0048] In one embodiment, please refer to Figure 3 , the first through hole 11 is set through the heating element 20; the non-center symmetrical pattern includes a first pattern 110 and a second pattern 120 connected to one side of the first pattern 110; along the first direction consistent with the width direction of the first through hole 11 (i.e. Figure 1 The first direction mentioned below refers to the direction of the arrow A shown in Figure 1 ), the outline size of the first graphic 110 is greater than or equal to the outline size of the second graphic 120.

[0049] Among them, the central symmetrical figure includes two parts, which increases the surface area of the inner wall of the first through hole 11, thereby improving the liquid guiding efficiency and the exhaust efficiency. From a further microscopic perspective, the first figure 110 is set so that the outline size of the first figure 110 is greater than or equal to the outline size of the second figure 120, so that bubbles can easily move in the internal space corresponding to the first figure 110 in the first through hole 11. Since the first figure 110 is larger than the second figure 120 in outline size, it is not easy for bubbles to block the first through hole 11. Furthermore, even if the bubbles fill the internal space corresponding to the first figure 110, due to the existence of the second figure 120 connected to the first figure 110, the internal space where the second figure 120 is located still allows the first through hole 11 to retain a gap between the bubbles and the inner wall of the first through hole 11 in the cross section, further providing space for the movement of bubbles, so that the bubbles can still move in the first through hole 11 and eventually be discharged from the substrate 10, preventing the bubbles from gradually developing in the first through hole 11 and entering the liquid storage cavity.

[0050] In one embodiment, please refer to Figure 1 and Figure 3 The first graphic 110 is a circle or a polygon; the second graphic 120 is a strip. The strip may refer to a graphic with a length-to-width ratio greater than 2.

[0051] Among them, the first figure 110 is set to be circular or polygonal, so that the bubbles can easily move or develop along the position of the first figure 110 first, and the second figure 120 is set to be a long strip, which further ensures that the bubbles are not easy to stay or develop at this position, thereby promoting the discharge of bubbles from the first through hole 11.

[0052] In one example, the elongated shape includes a rectangle, a trapezoid, or a parallelogram, and the aspect ratio thereof is greater than 2.

[0053] In one embodiment, please refer to Figure 1 , the first figure 110 is a regular polygon, and the second figure 120 is a rectangle; the short side of the rectangle coincides with one side of the regular polygon.

[0054] The arrangement of this embodiment further optimizes the structure of the first through hole 11, increases the distance from the center of the second pattern 120 to the edge of the first pattern 110, and thereby makes it more difficult for bubbles to stay in the position corresponding to the second pattern 120. In one example, the first pattern 110 is a regular hexagon.

[0055] In one embodiment, please refer to Figure 1 、 Figure 3 and Figure 4 , a plurality of first through holes 11 are arranged in a plurality of rows, and the row direction is parallel to the first direction; the second pattern 120 is arranged in a second direction (such as Figure 1 The direction of arrow B shown below refers to the first direction Figure 1 The second direction is connected to one side of the first graphic 110 (in the direction of the arrow B shown in FIG). The second direction intersects the first direction.

[0056] The electrode pair 30 includes two electrodes 310 . The two electrodes 310 are disposed on opposite sides of the heating element 20 along a first direction.

[0057] In this embodiment, the arrangement direction of the first graphic 110 and the second graphic 120 in the first through hole 11 is optimized, and the direction of the conductive current of the first graphic 110 and the second graphic 120 relative to the electrode pair 30 is defined. Before the optimization, the arrangement of the first graphic 110 and the second graphic 120 in the first through hole 11 on the substrate is not defined corresponding to the electrode pair 30, so that the two electrodes of the electrode pair 30 can be arranged on both sides of the heating element 20 along the second direction. At this time, since the second graphic 120 is also arranged along the second direction, the overall obstruction effect on the current is lower than the overall obstruction effect on the current after optimization. After optimization, the second graphic 120 is connected to one side of the first graphic 110 along the second direction, and the second direction intersects with the first direction, thereby improving the overall obstruction effect on the current.

[0058] The purpose of this arrangement is to ensure the liquid conduction and exhaust efficiency of the first through-holes 11. Through the above arrangement, the material thickness between adjacent first through-holes 11 and the material thickness at the edge of the substrate 10 are adjusted in the current transmission direction, thereby increasing the resistance at different positions in the current transmission direction and thereby increasing the heating temperature of the substrate 10. It can be understood that in the current transmission direction (i.e., the first direction), due to the above arrangement, the length of the first through-hole 11 as a whole that intersects the current transmission direction is greater than the length parallel to the current direction, so that not only the first pattern 110 can be used to block the current flow at this position, but the second pattern 120 can also be used to further increase the area blocking the current flow, thereby increasing the resistance.

[0059] In one embodiment, please refer to Figure 5-9 , the non-centrosymmetrical figures in the same row are arranged in a wavy line.

[0060] As shown in the above figure, the wavy linear arrangement, i.e., the non-center-symmetrical patterns in the same row exhibit an undulating arrangement in the first direction rather than a linear pattern, i.e., adjacent non-center-stacked patterns are staggered in the first direction of substrate 10. In this embodiment, based on defining the direction of the conductive current of first pattern 110 and second pattern 120 relative to electrode pair 30, the arrangement direction of first pattern 110 and second pattern 120 in first through-hole 11 is further optimized. Because the non-center-symmetrical patterns in the same row are wavy, they further increase the resistance to current transmission in the direction parallel to the current transmission direction of substrate 10, thereby further increasing the heating temperature of substrate 10.

[0061] In one embodiment, please refer to Figure 6 , multiple rows of first through holes 11 are distributed in an axisymmetric manner, and the axis of symmetry extends along the first direction; the second figure 120 is located on the side of the first figure 110 close to the axis of symmetry; the second direction is perpendicular to the first direction.

[0062] Among them, the Figure 6 The side of the second pattern 120 (indicated by the dotted line C in the figure) is closer to the inner side of the substrate 10 and farther from the edge of the substrate 10. This arrangement aims to utilize the second pattern 120 extending from one side of the first pattern 110, with the extension direction biased toward the inner side of the substrate 10, thereby increasing the resistance inside the substrate 10, specifically increasing the resistance to current flow between the two electrodes 310, thereby increasing the heating temperature at the position in the straight line between the two electrodes 310 and improving the atomization efficiency at this position.

[0063] In one embodiment, please refer to Figure 7The substrate 10 further has a plurality of second through holes 12 extending from the liquid absorption surface to the atomization surface; the cross-sectional shape of the second through holes 12 is a central symmetrical figure; the plurality of second through holes 12 are arranged along the first direction and are axially symmetrically distributed (please refer to the symmetry axis for details). Figure 7 The symmetry axes of the multiple rows of first through holes 11 and the multiple second through holes 12 coincide with each other, and along the second direction, the multiple rows of first through holes 11 are respectively located on opposite sides of each second through hole 12.

[0064] In this embodiment, the arrangement of the second through hole 12 is increased, and the positional relationship between the first through hole 11 and the second through hole 12 is optimized. The second through hole 12 with a central symmetrical pattern is provided, while ensuring the liquid guiding effect of the atomizer core, and the distribution amount of the aerosol matrix in the first through hole 11 and the second through hole 12 can be adjusted, thereby reducing the occurrence of liquid (oil) explosion caused by the uneven distribution of the aerosol matrix at different positions of the atomizer core during atomization. Further, when the aperture of the second through hole 12 is less than or equal to the width of the first pattern 110 of the first through hole 11, that is, the second through hole 12 is smaller than the first through hole 11 in terms of the overall outline size, so that the flow rate of the second through hole 12 during liquid guiding is relatively small, and the second through hole 12 can slow down the movement speed of the aerosol matrix therein relative to the first through hole 11, thereby reducing the occurrence of liquid explosion.

[0065] In one embodiment, please refer to Figure 8 and Figure 9 , each second through hole 12 is arranged into two groups, and the two groups of second through holes 12 form a cross wavy line; and / or, along the axis of symmetry (please refer to Figure 8 and Figure 9 In the direction of the dotted line (as indicated by the corresponding mark C), the length of the second pattern 120 of the multiple rows of first through holes 11 in the second direction gradually decreases.

[0066] This embodiment further increases the number of second through holes 12, thereby further reducing the occurrence of liquid explosion. Furthermore, because the length of the second pattern 120 of the multiple rows of first through holes 11 gradually decreases in the second direction, the resistance at different locations in the second direction decreases as the length decreases, thereby controlling and obtaining the heating temperature at different locations of the substrate 10 according to actual needs.

[0067] For an example, please refer to Figure 8 The length of the second pattern 120 of the multiple rows of first through holes 11 in the second direction gradually decreases. Specifically, the length of the second pattern 120 of the multiple rows of first through holes 11 gradually increases from the end closest to the second through holes 12 to the edge of the substrate 10. At this time, the resistance near the edge is greater than the resistance near the second through holes 12. In other words, the portion of the substrate 10 corresponding to the first through holes 11 has a higher temperature near the edge.

[0068] For another example, please refer to Figure 9 The length of the second pattern 120 of the multiple rows of first through holes 11 gradually decreases in the second direction. Specifically, the length of the second pattern 120 of the multiple rows of first through holes 11 gradually decreases from the end closest to the second through holes 12 to the edge of the substrate 10. At this point, the resistance near the edge is lower than the resistance near the second through holes 12. In other words, the portion of the substrate 10 corresponding to the first through holes 11 experiences a higher temperature near the second through holes 12.

[0069] It should be noted that Figure 8 and Figure 9 For example, for multiple rows of first through holes 11 arranged in the first direction, the spacing between adjacent rows can be selected according to actual conditions. The smaller the distance between rows, the denser the first through holes 11 as a whole, thereby reducing the obstruction to current in the direction of current transmission.

[0070] In another embodiment, please refer to Figure 10 , only a plurality of rows of second through holes 12 are provided on the substrate 10 , the second through holes 12 are long strip-shaped holes, and the aspect ratio of the second through holes 12 is greater than or equal to 50:1.

[0071] In this embodiment, according to the above-mentioned arrangement, the second through hole extends from one end of the substrate to the other end, thereby maximizing the cross-sectional area of the second through hole 12, prompting bubbles to first develop and move along the second through hole 12 when they are formed in the second through hole, thereby preventing bubbles from entering the liquid storage chamber.

[0072] In one embodiment, the substrate 10 is an intrinsic silicon substrate; wherein the heating element 20 is a doped conductive silicon substrate, the surface of the intrinsic silicon substrate away from the bonding plate has a receiving groove, and the conductive silicon substrate is embedded in the receiving groove; or, the heating element 20 is a conductive silicon layer formed by doping on the atomized surface of the intrinsic silicon substrate.

[0073] The materials used in this embodiment enable it to replace the traditional metal heating element 20. Both the substrate 10 and the heating element 20 are made of wafer-grade silicon wafer material. Using semiconductor technology, the silicon wafer is doped to impart conductivity to the single-crystalline silicon. Controlling the amount of doping allows for customized resistance and allows for the replacement of the traditional metal heating element 20. Furthermore, the conductive silicon substrate can be manufactured independently of the intrinsic silicon substrate and then assembled together, or the doping can be performed directly on a single silicon wafer, eliminating the need for separate processing.

[0074] Please refer to Figure 11 One embodiment of the present application provides an atomization assembly for an electronic atomization device, comprising:

[0075] a liquid storage chamber 40 for storing an aerosol-generating matrix;

[0076] The atomizing core 50 is used to atomize the aerosol-generating matrix from the liquid storage chamber 40 ; the atomizing core 50 is any one of the atomizing cores 50 described above.

[0077] During use, the aerosol-generating matrix in the liquid storage chamber 40 enters the atomizing core 50 , and the aerosol-generating matrix is atomized by the atomizing core 50 to be converted into an aerosol.

[0078] In another example, see Figure 12 The atomizer core 50 is arranged parallel to the axial direction of the atomizer assembly. One end of the atomizer core 50 is close to the nozzle 60 of the atomizer assembly, while the other end is relatively far away from the nozzle 60. In this way, when arranging the first through hole 11 and the second through hole 12 on the substrate, they can be arranged according to the temperature requirements of the position close to the nozzle 60.

[0079] Please refer to Figure 13 Another embodiment of the present application provides an atomization device, including an atomization assembly 70 and a battery assembly 80. The atomization assembly 70 is the above-mentioned atomization assembly 70, and the battery assembly 80 is used to provide energy for the operation of the atomization assembly 70.

[0080] The atomizing device can be used to atomize a liquid matrix. The battery assembly 80 provides energy to the atomizing assembly 70, thereby driving the atomizing assembly 70 to atomize the liquid aerosol matrix into an aerosol that can be inhaled.

[0081] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An atomizer core, characterized in that: include: A substrate having a liquid absorption surface and an atomization surface opposite to each other; the substrate having a plurality of first through holes extending from the liquid absorption surface to the atomization surface; A heating element is provided on the atomized surface of the substrate; an electrode pair, disposed on the atomized surface of the substrate and electrically connected to the heating element; Wherein, the cross-sectional shape of the first through hole is a non-centrosymmetrical figure.

2. The atomizer core according to claim 1, characterized in that: The first through hole passes through the heating element; the non-centrally symmetrical figure includes a first figure and a second figure connected to one side of the first figure; along a first direction consistent with the width direction of the first through hole, the outline size of the first figure is greater than or equal to the outline size of the second figure.

3. The atomizer core according to claim 2, characterized in that: The first graphic is a circle or a polygon; the second graphic is a strip.

4. The atomizer core according to claim 3, characterized in that: The first figure is a regular polygon, and the second figure is a rectangle; the short side of the rectangle coincides with one side of the regular polygon.

5. The atomizer core according to any one of claims 2 to 4, characterized in that: The first through holes are arranged in a plurality of rows, and the row direction is parallel to the first direction; the second pattern is connected to one side of the first pattern along a second direction, and the second direction intersects the first direction; The electrode pair includes two electrodes, and the two electrodes are arranged on opposite sides of the heating element along the first direction.

6. The atomizer core according to claim 5, characterized in that: The non-centrosymmetrical figures in the same row are arranged in a wavy line shape.

7. The atomizer core according to claim 5, characterized in that: The plurality of rows of first through holes are axially symmetrically distributed, and the axis of symmetry extends along the first direction; the second figure is located on a side of the first figure close to the axis of symmetry; and the second direction is perpendicular to the first direction.

8. The atomizer core according to claim 7, characterized in that: The substrate also has a plurality of second through holes extending from the liquid absorption surface to the atomization surface; the cross-sectional shape of the second through holes is a centrally symmetrical figure; the plurality of second through holes are arranged along the first direction and are axially symmetrically distributed; the plurality of rows of the first through holes coincide with the symmetry axes of the plurality of the second through holes, and along the second direction, the plurality of rows of the first through holes are respectively located on opposite sides of each of the second through holes.

9. The atomizer core according to claim 8, characterized in that: The second through holes are arranged into two groups, and the two groups of second through holes form crossed wavy lines; and / or, along the direction close to the symmetry axis, the length of the second graphics of multiple rows of first through holes in the second direction gradually decreases.

10. The atomizer core according to any one of claims 1 to 4, characterized in that: The substrate is an intrinsic silicon substrate; wherein the heating element is a conductive silicon substrate, the surface of the intrinsic silicon substrate close to the electrode pair has a receiving groove, and the conductive silicon substrate is embedded in the receiving groove; or, the heating element is a conductive silicon layer formed by doping on the atomized surface of the intrinsic silicon substrate.

11. An atomizing device, characterized in that: The atomizer core comprises the atomizer core according to any one of claims 1 to 4.

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