Atomizing core, atomizer and electronic atomizing device

Abstract

The utility model relates to the technical field of atomization, and discloses an atomization core, an atomizer and an electronic atomization device, which are used for heating and atomizing aerosol to generate matrix. The atomizing core comprises a base body, an atomizing surface and a liquid absorbing surface, wherein the atomizing surface and the liquid absorbing surface are oppositely arranged; the base body is provided with a plurality of liquid supply structure groups, and the liquid supply structure groups are arranged at intervals; wherein the liquid supply structure group comprises a groove, a plurality of micropores and a micro-column; the groove is formed in the atomizing surface; the micropores are formed in the bottom wall of the groove at intervals and penetrate through the bottom wall and the liquid absorption surface; the microcolumns are arranged on the bottom wall and located among the micropores. According to the atomizing core, the atomizer and the electronic atomizing device, the liquid supply and limiting capacity can be enhanced, and the atomizing effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of atomization, and in particular to an atomization core, an atomizer and an electronic atomization device. Background Art

[0002] The atomizer core is the core component of the electronic atomizer device, and its characteristics determine the atomization effect and user experience of the electronic atomizer device.

[0003] With technological advancements, users' requirements for the atomization effects of electronic atomization devices are becoming increasingly diverse. In related art, an atomizer core is provided to improve atomization volume, increase aerosol particle size, and increase the number of large droplets. This atomizer core comprises a base body with a groove formed on the atomizing surface. However, this type of atomizer core has poor liquid supply and liquid restriction capabilities, which can easily lead to problems such as lack of liquid in the middle of the groove or insufficient liquid supply, affecting the atomization effect. Utility Model Content

[0004] The purpose of the present utility model is to overcome the defects in the related art that the liquid supply and liquid limiting capabilities of the base are poor, which easily leads to problems such as lack of liquid in the middle of the groove or insufficient liquid supply, thereby affecting the atomization effect, thereby providing an atomization core, an atomizer and an electronic atomization device.

[0005] In a first aspect, the present invention provides an atomizer core for use in an electronic atomization device, for heating a substrate to generate an atomized aerosol. The atomizer core comprises: a base having an atomizing surface and a liquid absorption surface disposed opposite each other; the base having a plurality of liquid supply structure groups disposed in intervals; the liquid supply structure groups comprising a groove, a plurality of micropores, and micropillars; the groove being formed in the atomizing surface; a plurality of micropores being spaced apart on the bottom wall of the groove, and extending through the bottom wall and the liquid absorption surface; and micropillars disposed on the bottom wall and located between the plurality of micropores.

[0006] In an optional embodiment, the groove extends along the first direction; the plurality of micropores form at least two groups of micropore columns, the micropore columns extend along the first direction, and the at least two groups of micropore columns are arranged side by side and spaced apart from each other; the microcolumn is provided between two adjacent groups of micropore columns.

[0007] In an optional embodiment, a plurality of microcolumns are provided, and the plurality of microcolumns are spaced apart along the first direction.

[0008] In an optional embodiment, the relationship between the number a of microcolumns and the number b of microholes is: 0.4b≤a≤3b.

[0009] In an optional embodiment, the microcolumns extend in a third direction, and the size of the microcolumns in the third direction is greater than the groove depth of the groove, or equal to the groove depth of the groove, or less than the groove depth of the groove; the third direction is perpendicular to the bottom wall.

[0010] In an optional embodiment, the liquid supply structure group extends along the first direction, and multiple liquid supply structure groups are spaced apart along the second direction, and / or spaced apart along the first direction; the first direction and the second direction are perpendicular to each other.

[0011] In an optional embodiment, the groove depth ranges from 5 to 300 μm.

[0012] In an optional embodiment, the groove depth ranges from 20 to 150 μm.

[0013] In an optional embodiment, the width of the groove ranges from 10 to 500 μm; the micropores are distributed in an array, the pore size ranges from 5 to 100 μm, and the center distance of the micropores ranges from 5 to 200 μm; the cross-sectional equivalent diameter of the microcolumn ranges from 1 to 50 μm.

[0014] In an optional embodiment, the atomization core further includes a heating layer, which is provided on the atomization surface and outside the groove. The heating layer is used to heat the atomized aerosol to generate a matrix, and the heating layer allows the corresponding micropores to be exposed.

[0015] In an optional embodiment, the atomizer core further includes a positive electrode and a negative electrode, and both ends of the heating layer are electrically connected to the positive electrode and the negative electrode respectively.

[0016] In a second aspect, the present invention further provides an atomizer, comprising: a liquid storage chamber for storing an aerosol-generating matrix; and an atomizing core such as the above, the atomizing core being in fluid communication with the liquid storage chamber.

[0017] In a third aspect, the present invention further provides an electronic atomization device, comprising: the atomizer as described above; and a host for providing electrical energy for the atomizer to operate.

[0018] The technical solution of this utility model comprises a liquid supply structure assembly disposed on a substrate. A groove is formed on the atomizing surface, and multiple micropores are spaced apart on the bottom wall of the groove. The micropores extend through the bottom wall and the liquid absorption surface. Micropillars are disposed on the bottom wall and positioned between the micropores. During use, the micropores guide the aerosol-generating matrix from the liquid absorption surface into the grooves. Strong capillary forces are generated between the micropores and the grooves, enabling the aerosol-generating matrix to be replenished in a timely manner, enhancing the substrate's liquid supply capacity. Furthermore, the micropillars and the groove walls jointly provide support for the aerosol-generating matrix, strengthening the substrate's liquid-confining capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A three-dimensional diagram of a base body according to an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 A partial enlarged schematic diagram;

[0022] Figure 3 for Figure 1 A top view of

[0023] Figure 4 for Figure 3 A partial enlarged schematic diagram of B in the middle;

[0024] Figure 5 This is a top view of an atomizer core according to an embodiment of the present utility model;

[0025] Figure 6 A three-dimensional diagram of another base body according to an embodiment of the present utility model;

[0026] Figure 7 for Figure 6 A partial enlarged schematic diagram of center C;

[0027] Figure 8 for Figure 6 A top view of

[0028] Figure 9 A three-dimensional diagram of another base body according to an embodiment of the present utility model;

[0029] Figure 10 This is a schematic structural diagram of a micropore according to an embodiment of the present utility model;

[0030] Figure 11 This is a schematic structural diagram of another micropore according to an embodiment of the present utility model;

[0031] Figure 12 This is a schematic structural diagram of another micropore according to an embodiment of the present utility model;

[0032] Figure 13 This is a schematic structural diagram of another micropore according to an embodiment of the present utility model.

[0033] Description of reference numerals:

[0034] 1. Substrate; 10. Atomizing surface; 20. Liquid absorption surface; 30. Liquid supply structure group; 31. Groove; 311. Bottom wall; 3111. First spacer; 3112. Second spacer; 3113. Third spacer; 3114. Fourth spacer; 312. Sidewall; 32. Micropores; 321. Micropore array; 33. Micropillars; 331. Micropillar array; 40. Boss; 41. First ridge; 42. Second ridge; 2. Heating layer; 3. Positive electrode; 4. Negative electrode;

[0035] X-first direction; Y-second direction; Z-third direction. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0037] The following combination Figures 1 to 13 , describing the embodiments of the present utility model.

[0038] According to an embodiment of the present invention, an electronic atomization device is provided, which can be used to atomize an aerosol-generating substrate. Specifically, the electronic atomization device includes an atomizer and a host electrically connected to each other.

[0039] The atomizer is used to store an aerosol-generating substrate and atomize it to form an aerosol for inhalation by the user. The atomizer can be used in various fields, such as medical treatment, cosmetics, and recreational smoking. In one embodiment, the atomizer can be used in an electronic aerosolization device to atomize the aerosol-generating substrate and generate an aerosol for inhalation by the user. The following embodiments use this recreational smoking method as an example.

[0040] The specific structure and function of the atomizer can refer to the specific structure and function of the atomizer involved in the following embodiments, and the same or similar technical effects can be achieved, so they will not be repeated here.

[0041] The main unit includes a battery and a controller. The battery provides electrical energy to the nebulizer, enabling it to atomize the aerosol-generating matrix into an aerosol; the controller controls the nebulizer's operation. The main unit also includes other components, such as a battery holder and an airflow sensor.

[0042] The atomizer and the host can be integrated or detachably connected and can be designed according to specific needs.

[0043] The atomizer further includes a housing and an atomizing core disposed within the housing. The housing defines a liquid storage chamber for storing an aerosol-forming substrate. The atomizing core is fluidically connected to the liquid storage chamber and electrically connected to the main unit to atomize the aerosol-forming substrate to generate an aerosol.

[0044] Specifically, the atomizer core comprises a base 1 and a heating structure, which is disposed on the base 1. The base 1 is in fluid communication with the liquid reservoir and is used to introduce an aerosol-generating substrate. The heating structure is electrically connected to the main unit and is used to heat and atomize the aerosol-generating substrate introduced into the base 1.

[0045] In some embodiments, as Figure 1 、 6 As shown in FIG. 9 , the substrate 1 has an atomizing surface 10 and a liquid absorbing surface 20 that are arranged opposite to each other, and the substrate 1 is provided with a plurality of liquid supply structure groups 30 , and the plurality of liquid supply structure groups 30 are arranged at intervals from each other.

[0046] Specifically, if Figure 2 、 3 As shown in Figures 7 and 8, the liquid supply structure group 30 includes a groove 31, a plurality of micropores 32, and micropillars 33. The groove 31 is formed on the atomizing surface 10, and the plurality of micropores 32 are spaced apart on the bottom wall 311 of the groove 31. The micropores 32 extend through the bottom wall 311 and the liquid absorbing surface 20. The micropillars 33 are disposed on the bottom wall 311 and are located between the plurality of micropores 32.

[0047] In this embodiment, a liquid supply structure group 30 is provided on the substrate 1, a groove 31 is formed on the atomizing surface 10, and a plurality of micropores 32 are spaced apart on the bottom wall 311 of the groove 31. The micropores 32 extend through the bottom wall 311 and the liquid aspiration surface 20. Micropillars 33 are provided on the bottom wall 311 and are located between the plurality of micropores 32. During use, the micropores 32 guide the aerosol-generating matrix from the liquid aspiration surface 20 into the groove 31. A strong capillary force is formed between the micropores 32 and the groove 31, allowing the aerosol-generating matrix to be replenished into the groove 31 in a timely manner, thereby enhancing the liquid supply capacity of the substrate 1. In addition, the micropillars 33 and the groove walls of the groove 31 (including the bottom wall 311 and the side walls 312) jointly provide support for the aerosol-generating matrix, thereby enhancing the liquid confinement capacity of the substrate 1. Therefore, the atomizer core of the present invention improves the liquid supply capacity and liquid limiting capacity of the base 1, thereby avoiding or even eliminating problems such as lack of liquid or insufficient liquid supply in the middle of the groove 31, and ensuring the atomization effect.

[0048] It can be understood that the microcolumns 33 are arranged on the bottom wall 311 of the groove 31, that is, the microcolumns 33 are formed on the atomizing surface 10 of the substrate 1. This solution does not specifically limit the arrangement of the grooves 31 and the microcolumns 33 on the atomizing surface 10, as long as the function of improving the liquid supply and liquid limiting capacity of the substrate 1 is achieved. Exemplarily, the groove 31 can be opened on the atomizing surface 10 and the microcolumns 33 can be reserved by a subtraction process, that is, the plane where the notch of the groove 31 is located is the atomizing surface 10; exemplarily, a laminated structure can be added to the atomizing surface 10, and the laminated structure and the atomizing surface 10 together form the groove 31 and the microcolumns 33, that is, the plane where the bottom wall 311 of the groove 31 is located is the atomizing surface 10.

[0049] Furthermore, for ease of description, the length direction of the groove 31 is defined as a first direction X, that is, the groove 31 extends along the first direction X; the width direction of the groove 31 is defined as a second direction Y, and the first direction and the second direction Y are perpendicular to each other.

[0050] In some embodiments, the groove 31 includes the above-mentioned bottom wall 311 and a side wall 312 surrounding the bottom wall 311, the micropores 32 are spaced apart on the bottom wall 311, and in the first direction X, adjacent micropores 32 form a first spacing area 3111 on the bottom wall 311, and the microcolumns 33 are arranged in the first spacing area 3111.

[0051] In some embodiments, the groove 31 includes the above-mentioned bottom wall 311 and a side wall 312 surrounding the bottom wall 311, the micropores 32 are spaced apart on the bottom wall 311, and in the second direction Y, adjacent micropores 32 form a second spacing area 3112 on the bottom wall 311, and the microcolumns 33 are arranged in the second spacing area 3112.

[0052] In some embodiments, as Figure 4 As shown, the groove 31 includes the aforementioned bottom wall 311 and sidewalls 312 surrounding the bottom wall 311. Multiple micropores 32 within the groove 31 are spaced apart in a first direction X and a second direction Y, i.e., the micropores 32 are distributed in an array. In the first direction X, adjacent micropores 32 form a first spacer 3111. In the second direction Y, adjacent micropores 32 form a second spacer 3112. The intersection of the first and second spacers 3111 and 3112 forms a third spacer 3113. Micropillars 33 can be located in the first spacer 3111, the second spacer 3112, the third spacer 3113, or any two of the three, or all three, regions.

[0053] In this solution, the micropillars 33 are arranged on the spaced areas between the micropores 32 so as not to block the fluid flow channels in the micropores 32 and ensure the smoothness of the liquid supply.

[0054] Specifically, the micropores 32 within the groove 31 are arranged in a row along the first direction X, and the plurality of micropores 32 within the groove 31 form at least two groups of micropore rows 321. The micropore rows 321 extend along the first direction X, and the at least two groups of micropore rows 321 are arranged side by side and spaced apart from each other. Specifically, the micropore rows 321 are arranged side by side and spaced apart from each other in the second direction Y. The aforementioned micropillars 33 are located between two adjacent groups of micropore rows 321.

[0055] More specifically, if Figure 3 and Figure 4 As shown, two adjacent groups of micropore columns 321 can be arranged opposite each other, and the third spacer 3113 is formed between the four adjacent micropores 32 in the two groups of micropore columns 321. The micropillars 33 are arranged in the third spacer 3113. The size of the micropillars 33 is less than or equal to the size of the third spacer 3113.

[0056] For example, a plurality of micropillars 33 are provided, and the plurality of micropillars 33 are spaced apart along the first direction X, preferably evenly spaced apart. Figure 3 As shown in FIG8 , a plurality of micropillars 33 are evenly arranged between two adjacent groups of micropore columns 321 to form a micropillar column 331. This arrangement creates a more uniform capillary force between the micropillars 33 and the grooves 31, further enhancing the liquid supply capacity and increasing the liquid storage capacity within the grooves 31, thereby preventing problems such as dry burning and scorching. Furthermore, the evenly arranged micropillars 33 help to improve the uniformity of the liquid film distribution of the aerosol-generating matrix within the grooves 31, thereby enhancing the atomization effect.

[0057] For example, Figure 4 As shown in FIG9 , each liquid supply structure group 30 may be provided with two groups of micropore arrays 321 , and a group of microcolumn arrays 331 may be provided in the third spacer 3113 between the two groups of micropore arrays 321 .

[0058] For example, Figure 8 As shown, each liquid supply structure group 30 may be provided with three groups of micropore arrays 321 , and each of the third spacers 3113 between two adjacent groups of micropore arrays 321 in the three groups of micropore arrays 321 is provided with microcolumn arrays 331 , that is, two groups of microcolumn arrays 331 are provided.

[0059] In some unillustrated embodiments, two adjacent groups of micropore columns 321 may also be staggered, with a fifth spacer (not shown) formed between three adjacent micropores 32 of the two groups of micropore columns 321 , and the micropillars 33 are disposed in the fifth spacer.

[0060] It is understandable that in this solution, the location of the microcolumns 33 depends on the arrangement of the micropores 32 , and the location of the microcolumns 33 can be adaptively arranged according to the spacing between the micropores 32 , as long as the liquid supply capacity and liquid limiting requirements are met.

[0061] In addition, if Figure 4 As shown, a fourth spacer 3114 is further formed on the bottom wall 311. The fourth spacer 3114 is located between the microhole 32 and the sidewall 312 of the groove 31. In some embodiments, the fourth spacer 3114 may also be provided with the aforementioned micropillars 33.

[0062] It is understandable that in order to prevent the micropillars 33 from blocking the flow channels of the micropores 32, the setting size of the micropillars 33 depends specifically on the spacing between the micropores 32, or in some embodiments, the setting size of the micropillars 33 should also refer to the spacing between the micropillars 33 and the sidewalls 312.

[0063] For ease of description, the direction perpendicular to the bottom wall 311 of the groove 31 is defined as the third direction Z, which is the direction from the liquid absorption surface 20 to the atomization surface 10. The third direction Z is perpendicular to the first direction X and the second direction Y.

[0064] Specifically, the cross-sectional dimension of the micropillar 33 in the third direction Z should be less than or equal to the spacing between the micropores 32, which refers to the dimensions of the first, second, and third spacings 3111, 3112, and 3113. Alternatively, in some embodiments, the cross-sectional dimension of the micropillar 33 in the third direction Z should also be less than or equal to the spacing between the micropillar 33 and the sidewall 312, which refers to the dimensions of the fourth spacing 3114. More specifically, the cross-sectional dimension of the micropillar 33 in the third direction Z depends on the dimensions of the spacing region in which it is provided. The dimensions of the micropillars 33 in different spacing regions can be the same or different.

[0065] For example, the micropores 32 within the groove 31 can be distributed in an array, with a pore size range of 5-100 μm. When the pore size of the micropores 32 is less than 5 μm, the liquid supply requirement cannot be met, resulting in a decrease in the amount of aerosol. When the pore size of the micropores 32 is greater than 100 μm, the aerosol-generating matrix easily flows out of the micropores 32, causing leakage. The center-to-center distance between the micropores 32 ranges from 5-200 μm. If the center-to-center distance between the micropores 32 is less than 5 μm, the substrate 1 is weak and easily damaged. When the center-to-center distance between the micropores 32 is greater than 200 μm, the liquid supply requirement cannot be met.

[0066] Correspondingly, the cross-sectional equivalent diameter range of the microcolumn 33 is 1-50 μm. When the cross-sectional equivalent diameter of the microcolumn 33 is less than 1 μm, the structural strength of the microcolumn 33 is poor and it is easy to be damaged. In addition, the capillary force between the microcolumn 33 and the groove 31 is small, and the liquid locking ability is poor. When the cross-sectional equivalent diameter of the microcolumn 33 is greater than 50 μm, it is easy to block the micropore 32, affecting the liquid supply, and the microcolumn 33 occupies a larger space, which will reduce the liquid storage capacity of the groove 31.

[0067] It is understood that the cross-sectional dimensions of the micropillars 33 in the third direction Z can be circular, square, bar-shaped, or irregular. In other words, the micropillars 33 can be configured as cylindrical, square, long, or other shapes. The equivalent cross-sectional diameter of the micropillars 33 described above refers to the diameter equivalent to the cross-sectional dimensions of the micropillars 33. In other words, the equivalent cross-sectional diameter of the micropillars 33 is not limited to the dimensions when the cross-sectional shape of the micropillars 33 is circular.

[0068] In addition, in this solution, the number of micropillars 33 depends on the number of micropores 32. The number of micropillars 33 is defined as a, and the number of micropores 32 is defined as b. a and b should satisfy 0.4b≤a≤3b.

[0069] Furthermore, the microcolumn 33 extends in the third direction Z. For example, the dimension of the microcolumn 33 in the third direction Z can be greater than the depth of the groove 31, that is, the microcolumn 33 is protruding from the groove 31. In this way, the microcolumn 33 has a strong ability to lock and hang liquid, which can further improve the liquid supply capacity and increase the liquid storage capacity. For example, the dimension of the microcolumn 33 in the third direction Z can be equal to the depth of the groove 31, that is, the microcolumn 33 is flush with the plane where the notch of the groove 31 is located, which is convenient for processing. For example, the dimension of the microcolumn 33 in the third direction Z can be less than the depth of the groove 31, that is, the microcolumn 33 is lower than the plane where the notch of the groove 31 is located. In this way, the microcolumn 33 has a high structural strength and is not easily damaged.

[0070] Exemplarily, the groove 31 is recessed on the atomized surface 10, that is, the plane where the notch of the groove 31 is located is the atomized surface 10, and the microcolumn 33 extends from the bottom wall 311 of the groove 31 toward the atomized surface 10, and the end surface of the microcolumn 33 away from the bottom wall 311 is lower than the atomized surface 10, or higher than the atomized surface 10, or flush with the atomized surface 10.

[0071] In addition, this solution does not specifically limit the arrangement of the micropores 32 in the groove 31, as long as the liquid supply requirements are met. The micropores 32 can be evenly arranged in the groove 31 or unevenly arranged. This solution does not specifically limit the shape and structure of the micropores 32, such as Figure 10-13 As shown, Figure 10-13The micropores 32 can be configured as tapered holes, straight holes, oblique holes, or other shapes. In addition, the cross-sectional shape of the micropores 32 in the third direction Z can be circular, elliptical, square, triangular, polygonal, or other shapes.

[0072] In the prior art, when the size of the groove 31 is large, the middle of the groove 31 is prone to lack of liquid, resulting in dry burning and other problems, or the liquid film can only be formed at the edge of the groove 31, which cannot achieve the effect of increasing the atomization amount. Therefore, the size of the groove 31 cannot be made larger, and the upper limit is small. In this solution, a strong capillary force is formed between the micropores 32 and the micropillars 33. Therefore, this solution can break through the upper limit of the size of the groove 31 in the prior art, and achieve the purpose of further improving the atomization amount, increasing the aerosol particle size and the number of large droplets. Specifically, the size of the groove 31 in the second direction Y, that is, the width, can be 10-500μm. If the width of the groove 31 is less than 10μm, the flow resistance is too large, which makes the flow of the aerosol generating matrix slow; if the width of the groove 31 is greater than 500μm, the liquid locking ability becomes poor. Preferably, the width of the groove 31 can be 20-200μm. Within this range, the liquid storage capacity of the groove 31 is large, and the capillary force between it and the micropillars 33 is large.

[0073] Furthermore, the dimension of the groove 31 in the third direction Z, i.e., the groove depth of the groove 31, can be 5-300 μm, wherein the thickness of the liquid film formed in the groove 31 depends on the groove depth of the groove 31. If the groove depth of the groove 31 is less than 5 μm, the liquid film formed in the groove 31 is too thin, which is not conducive to the formation of large droplet aerosols; if the groove depth of the groove 31 is greater than 300 μm, the liquid film formed in the groove 31 is too thick, which is not conducive to atomization. Preferably, the groove depth of the groove 31 can be 20-150 μm. Within this range, the liquid film thickness of the groove 31 is moderate, and the atomization effect is good.

[0074] The present solution does not impose any specific limitation on the shape of the groove 31 . The groove 31 may be an arc-shaped groove, a trapezoidal groove, a right-angled groove or other shapes.

[0075] In this solution, multiple micropores 32 are spaced apart on the bottom wall 311 of the groove 31, and micropillars 33 are arranged between the multiple micropores 32. By limiting the groove depth and width of the groove 31, the aperture and center distance of the micropores 32, and the equivalent cross-sectional diameter of the micropillars 33, the capillary force in the groove 31 is improved, thereby enhancing the liquid locking ability.

[0076] Furthermore, a plurality of liquid supply structure groups 30 are spaced apart on the substrate 1. In some embodiments, for example, Figure 1-5 As shown, the liquid supply structure group 30 extends along the first direction X, and multiple liquid supply structure groups 30 are arranged at intervals along the second direction Y. That is, the liquid supply structure groups 30 are arranged in a single row and multiple columns.

[0077] For example, Figure 1-5 As shown, a row of liquid supply structure groups 30 is arranged in the first direction X of the base 1 , and four columns of liquid supply structure groups 30 are arranged side by side in the second direction Y of the base 1 .

[0078] In some embodiments, as Figure 6-9 As shown, the liquid supply structure group 30 extends along the first direction X, and multiple liquid supply structure groups 30 are spaced apart along the second direction Y. The first direction X and the second direction Y are perpendicular to each other. That is, the liquid supply structure groups 30 are arranged in multiple rows and columns.

[0079] For example, Figure 6-8 In the illustrated embodiment, four rows of liquid supply structure groups 30 are arranged side by side in the first direction X of the substrate 1 , and six columns of liquid supply structure groups 30 are arranged side by side in the second direction Y of the substrate 1 .

[0080] For example, Figure 9 In the illustrated embodiment, two rows of liquid supply structure groups 30 are arranged side by side in the first direction X of the substrate 1 , and four columns of liquid supply structure groups 30 are arranged side by side in the second direction Y of the substrate 1 .

[0081] Alternatively, in some unillustrated embodiments, the liquid supply structure group 30 extends along the first direction X, and a plurality of liquid supply structure groups 30 are spaced apart along the first direction X. That is, the liquid supply structure groups 30 are arranged in a single column in multiple rows.

[0082] It can be understood that the present solution does not impose any specific limitation on the number of rows and columns of the liquid supply structure group 30 , and the specific number of rows and columns can be adjusted according to the liquid supply demand and the adaptability of the substrate size.

[0083] Furthermore, the atomizer core includes the aforementioned heating structure, which includes a heating layer 2, a positive electrode 3, and a negative electrode 4. The heating layer 2 is disposed on the atomizing surface 10 and is used to heat the atomized aerosol to generate the matrix. The heating layer 2 allows the corresponding micropores 32 to be exposed. The two ends of the heating layer 2 are electrically connected to the positive electrode 3 and the negative electrode 4, respectively. The positive electrode 3 is electrically connected to the positive electrode of the battery, and the negative electrode 4 is electrically connected to the negative electrode of the battery.

[0084] Specifically, the atomizing surface 10 is formed with the aforementioned groove 31 and boss 40. The boss 40 is integrally formed on the atomizing surface 10 of the substrate 1, or can be formed on the atomizing surface 10 by the aforementioned laminated structure. The aforementioned heating layer 2, positive electrode 3, and negative electrode 4 are disposed on the boss 40. Specifically, the positive electrode and negative electrode 4 are respectively disposed at both ends of the boss 40 in the first direction X or the second direction Y, with the heating layer 2 disposed between the positive electrode and the negative electrode 4. This arrangement prevents the heating layer 2 from contacting the atomized aerosol generating substrate, thereby reducing or even eliminating harmful substances produced by heating.

[0085] For example, Figure 1 and 5 As shown, the boss 40 may include a first ridge 41 extending along a first direction X and a second ridge 42 extending along a second direction Y. A plurality of first ridges 41 are arranged side by side; two second ridges 42 are provided, one at each end of the plurality of first ridges 41. The heating layer 2 is provided on the surface of the first ridge 41 away from the liquid absorbing surface 20, and the positive electrode 3 and the negative electrode 4 are respectively provided on the surface of the two second ridges 42 away from the liquid absorbing surface 20.

[0086] Alternatively, in some embodiments, the heating layer 2 may also be disposed on the bottom wall 311 , the side wall 312 or the inner wall of the micropore 32 of the groove 31 .

[0087] Furthermore, the heating layer 2 can be entirely or partially laid on the boss 40, and the dimension of the heating layer 2 in the third direction Z, that is, the thickness, can be 1-10 μm. The heating layer 2 can be a heating film, and the material of the film can be a metal material or alloy material that can be used for thin film heating, such as stainless steel, iron-chromium-aluminum, platinum, gold, etc. The heating film can be formed by a thin film deposition process such as magnetron sputtering, vacuum evaporation, plasma deposition, atomic layer deposition, etc., or it can be formed by an electroplating process.

[0088] In addition, in the technical solution of the present invention, by setting a plurality of liquid supply structure groups 30 spaced apart from each other, the boss 40 formed on the outside of the groove 31 of the liquid supply structure group 30 is an integrated structure, that is, the above-mentioned first ridge 41 and the second ridge 42 are crossed and connected with each other. The boss 40 set in this way can strengthen the structural strength of the base 1.

[0089] This solution does not impose any specific restrictions on the material, shape, or structure of the substrate 1, as long as it can match the housing. The material of the substrate 1 includes, but is not limited to, glass, quartz, silicon, ceramic, and other micro-nano process substrates. The shape of the substrate 1 includes, but is not limited to, a cube, block, column, plate, or other irregular shapes.

[0090] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. An atomizing core, used in an electronic atomizing device, for heating an atomized aerosol to generate a matrix, characterized in that: include: A base (1) having an atomizing surface (10) and a liquid absorbing surface (20) arranged opposite to each other; The base (1) is provided with a plurality of liquid supply structure groups (30), and the plurality of liquid supply structure groups (30) are arranged at intervals from each other; The liquid supply structure group (30) comprises a groove (31), a plurality of micropores (32) and microcolumns (33); the groove (31) is formed on the atomizing surface (10); the plurality of micropores (32) are arranged at intervals on the bottom wall (311) of the groove (31), and the micropores (32) penetrate the bottom wall (311) and the liquid absorption surface (20); the microcolumns (33) are arranged on the bottom wall (311) and are located between the plurality of micropores (32).

2. The atomizer core according to claim 1, characterized in that The groove (31) is extended along a first direction; The plurality of micropores (32) form at least two groups of micropore columns (321), the micropore columns (321) extend along the first direction, and the at least two groups of micropore columns (321) are arranged side by side and spaced apart from each other; the microcolumns (33) are provided between two adjacent groups of micropore columns (321).

3. The atomizer core according to claim 2, characterized in that A plurality of micropillars (33) are provided, and the plurality of micropillars (33) are spaced apart along the first direction.

4. The atomizer core according to claim 3, characterized in that The relationship between the number a of the microcolumns (33) and the number b of the microholes (32) is: 0.4b≤a≤3b.

5. The atomizer core according to claim 1, characterized in that The microcolumns (33) extend in a third direction, and the dimensions of the microcolumns (33) in the third direction are greater than the depth of the groove (31), or equal to the depth of the groove (31), or less than the depth of the groove (31); the third direction is perpendicular to the bottom wall (311).

6. The atomizer core according to claim 1, characterized in that The liquid supply structure group (30) extends along a first direction, and the plurality of liquid supply structure groups (30) are spaced apart along a second direction and / or spaced apart along the first direction; The first direction and the second direction are perpendicular to each other.

7. The atomizer core according to any one of claims 1 to 6, characterized in that: The groove (31) has a depth ranging from 5 to 300 μm.

8. The atomizer core according to claim 7, characterized in that: The groove (31) has a depth ranging from 20 to 150 μm.

9. The atomizer core according to claim 7, characterized in that The width of the groove (31) is in the range of 10-500 μm; The micropores (32) are distributed in an array, the pore diameter of the micropores (32) ranges from 5 to 100 μm, and the center distance of the micropores (32) ranges from 5 to 200 μm; The cross-sectional equivalent diameter of the microcolumn (33) is in the range of 1-50 μm.

10. The atomizer core according to any one of claims 1 to 6, characterized in that: The atomizing core further comprises a heating layer (2), the heating layer (2) being arranged on the atomizing surface (10) and located outside the groove (31), the heating layer (2) being used for heating and atomizing the aerosol generating matrix, and the heating layer (2) allowing the corresponding micropores (32) to be exposed.

11. The atomizer core according to claim 10, characterized in that The atomizing core further comprises a positive electrode (3) and a negative electrode (4), and the two ends of the heating layer (2) are electrically connected to the positive electrode (3) and the negative electrode (4) respectively.

12. An atomizer, characterized in that: include: a liquid storage chamber for storing an aerosol-generating matrix; The atomizer core according to any one of claims 1 to 11, wherein the atomizer core is in fluid communication with the liquid storage chamber.

13. An electronic atomization device, characterized in that: include: The atomizer according to claim 12; The host is used to provide electrical energy for the atomizer to operate.

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