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 which is provided with an atomizing face and a liquid absorbing face which are oppositely arranged, and the base body is provided with a plurality of grooves, a plurality of first protruding strips and a plurality of micropores; the grooves and the first protruding strips are formed in the atomization face, the multiple grooves are parallel to one another and arranged at intervals, and one first protruding strip is formed between every two adjacent grooves. The micro holes penetrate through the atomization face and the liquid absorption face, the micro holes are correspondingly formed in the first protruding strips, and the micro holes communicate with the two adjacent grooves. According to the atomizing core, the atomizer and the electronic atomizing device, the thickness of a liquid film on the atomizing surface of the atomizing core is increased, and the liquid guiding capacity is 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 have increasingly higher expectations for the atomization effect of electronic atomization devices. To meet these needs, an atomizer core with a straight-pore matrix is ​​provided. However, the liquid film thickness on the atomization surface of the atomizer core with a straight-pore matrix is ​​relatively thin, and the straight-pore matrix has poor liquid-drawing capacity, which can easily lead to problems such as dry burning and unsatisfactory atomization effect. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the related art in that the liquid film thickness on the atomizing surface of the atomizing core is relatively thin and the liquid-drawing ability is relatively poor, thereby providing an atomizing core, an atomizer and an electronic atomizing device.

[0005] In a first aspect, the present invention provides an atomizer core for use in an electronic atomizer device, for heating an atomized aerosol to generate a substrate. The atomizer core comprises: a base having an atomizing surface and a liquid absorption surface disposed opposite each other, the base being provided with a plurality of grooves, a plurality of first ridges, and a plurality of micropores; the grooves and first ridges being formed on the atomizing surface, the plurality of grooves being parallel to each other and spaced apart, with a first ridge formed between two adjacent grooves; the micropores extending through the atomizing surface and the liquid absorption surface, each first ridge correspondingly provided with a micropore, the micropores connecting two adjacent grooves.

[0006] In an optional embodiment, in the first direction, the micropores penetrate the first ridge; in the second direction, the port size of the micropores close to the atomizing surface is larger than the set size of the first ridge, and the port of the micropores close to the atomizing surface is connected to two adjacent grooves; the first direction is the direction from the atomizing surface to the liquid absorption surface; the second direction is the spacing direction of multiple grooves.

[0007] In an optional embodiment, the micropores extend along a first direction; and / or, in the first direction, the cross-sectional dimensions of the micropores are the same; and / or, in the first direction, the cross-sectional shape of the micropores is circular; and the first direction is perpendicular to both the atomization surface and the liquid absorption surface.

[0008] In an optional embodiment, in the third direction, a plurality of microholes are arranged at intervals on the first convex strip; the third direction is the extension direction of the first convex strip.

[0009] In an optional embodiment, a second ridge is provided on the base body, and the second ridge is formed on the periphery of the plurality of grooves; at least part of the micropores are provided corresponding to the second ridge, and the micropores are connected to adjacent grooves.

[0010] In an optional embodiment, the plurality of micropores are distributed in an array, and in the second direction, adjacent micropores are arranged opposite each other or staggered; the second direction is the spacing direction of the plurality of grooves.

[0011] In an alternative embodiment, the matrix is ​​a dense matrix.

[0012] In an optional embodiment, the atomization core further includes a heating layer, which is provided on the atomization surface. The heating layer is used to heat the atomized aerosol to generate a matrix, and the heating layer allows corresponding micropores to be exposed.

[0013] In an optional embodiment, the substrate is a dense substrate; the groove has a bottom wall, the micropores are all located on one side of the bottom wall, the heating layer is a resistive heating film, and the resistive heating film is arranged on the bottom wall of the groove.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] Utilizing the technical solution of the present invention, grooves and first ridges are formed on the atomizing surface. Multiple grooves are parallel to each other and spaced apart. A first ridge is formed between two adjacent grooves. Micropores penetrate the atomizing surface and the liquid absorption surface, and each first ridge is provided with corresponding micropores. The micropores connect the two adjacent grooves, and then multiple grooves are interconnected through the micropores on the multiple first ridges. The grooves have a liquid storage function. After the micropores lead the aerosol-generating matrix from the liquid absorption surface to the atomizing surface, the aerosol-generating matrix can flow into the grooves of the entire atomizing surface and be stored in the grooves, thereby increasing the thickness of the liquid film on the atomizing surface of the atomizing core. In addition, the grooves are interconnected through the micropores, which enhances the capillary force and surface tension of the grooves, thereby enhancing the liquid-drawing ability of the matrix. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 A three-dimensional diagram of a base body according to an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A partial enlarged schematic diagram;

[0021] Figure 3 for Figure 1 A top view of

[0022] Figure 4 This is a top view of an atomizer core according to an embodiment of the present utility model;

[0023] Figure 5 A three-dimensional diagram of another base body according to an embodiment of the present utility model;

[0024] Figure 6 for Figure 5 A partial enlarged schematic diagram of B in the middle;

[0025] Figure 7 for Figure 5 A top view of

[0026] Figure 8 This is a schematic structural diagram of a micropore according to an embodiment of the present utility model;

[0027] Figure 9 This is a schematic structural diagram of another micropore according to an embodiment of the present utility model;

[0028] Figure 10 This is a schematic structural diagram of another micropore according to an embodiment of the present utility model;

[0029] Figure 11 This is a schematic structural diagram of another micropore according to an embodiment of the present utility model.

[0030] Description of reference numerals:

[0031] 1. Base; 10. Atomizing surface; 20. Liquid absorption surface; 31. Groove; 311. Bottom wall; 312. Side wall; 32. Micropore; 33. First ridge; 331. Bump; 34. Second ridge; 341. First sub-ridge; 342. Second sub-ridge; 2. Heating layer; 3. Positive electrode; 4. Negative electrode;

[0032] Z-first direction; Y-second direction; X-third direction. DETAILED DESCRIPTION

[0033] 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.

[0034] The following combination Figures 1 to 11 , describing the embodiments of the present utility model.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] The atomizer and the host can be integrated or detachably connected and can be designed according to specific needs.

[0040] 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.

[0041] 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.

[0042] In some embodiments, as Figure 1 As shown in Figure 5, the substrate 1 has an atomizing surface 10 and a liquid absorption surface 20 that are arranged opposite to each other, and a plurality of grooves 31, a plurality of micropores 32, and a plurality of first ridges 33 are provided on the substrate 1. The plurality of grooves 31 and the plurality of first ridges 33 are all formed on the atomizing surface 10, wherein the plurality of grooves 31 are parallel to each other and spaced apart, and a first ridge 33 is formed between each of the two adjacent grooves 31. The micropores 32 run through the atomizing surface 10 and the liquid absorption surface 20, and each first ridge 33 is correspondingly provided with a micropore 32, that is, each micropore 32 is located between two adjacent grooves 31, and the micropore 32 is connected to the two adjacent grooves 31. The plurality of grooves 31 on the atomizing surface 10 are interconnected through the micropores on the plurality of first ridges 33.

[0043] In this embodiment, the grooves 31 function as liquid storage. After the micropores 32 guide the aerosol-generating matrix from the liquid absorption surface 20 to the atomizing surface 10, the aerosol-generating matrix can flow throughout the grooves 31 of the atomizing surface 10 and be stored there, increasing the thickness of the liquid film on the atomizing surface of the atomizing core. Furthermore, the grooves 31 are interconnected through the micropores 32, enhancing the capillary force and surface tension of the grooves 31, thereby enhancing the liquid-drawing ability of the substrate 1. Therefore, the atomizing core of the present invention improves the liquid film thickness and liquid-drawing ability of the atomizing surface 10, making it easier to produce large-particle aerosols, improving the taste, and being less prone to problems such as dry burning.

[0044] For ease of description, the direction from the atomizing surface 10 to the liquid absorbing surface 20 is defined as a first direction Z; the spacing direction of the plurality of grooves 31, that is, the width direction of the grooves 31, is defined as a second direction Y; and the extending direction of the grooves 31, that is, the length direction, is defined as a third direction X. The first direction Z, the second direction Y, and the third direction X are arranged at an angle to each other. In some embodiments, the first direction Z, the second direction Y, and the third direction X are perpendicular to each other.

[0045] In some embodiments, the width of the groove 31 ranges from 10 to 200 μm. If the width of the groove 31 is greater than 200 μm, the capillary force is weak, and the liquid-drawing and liquid-limiting capabilities are weakened. If the width of the groove 31 is less than 10 μm, the liquid storage capacity is small, the flow resistance of the aerosol-generating matrix is ​​large, and the flow is slow.

[0046] In some embodiments, the depth of the groove 31 ranges from 10 to 300 μm. The depth of the groove 31 is also the dimension of the groove 31 in the first direction Z. If the depth of the groove 31 is greater than 300 μm, the liquid film of the aerosol-generating substrate is too thick, the temperature rises slowly, and it is difficult or even impossible to condense the liquid, making it difficult to generate large-particle aerosols. If the depth of the groove 31 is less than 10 μm, the capillary force is weak, and the liquid-drawing ability is weakened.

[0047] Understandably, a thinner liquid film produces less liquid and smaller particle size, while a thicker liquid film produces more liquid and larger particle size. In this embodiment, the depth of the groove 31 can limit the thickness of the liquid film, while the length and width of the groove 31 can limit the liquid storage capacity of the liquid film. By adjusting the size of the groove 31, the amount and size of large-particle aerosol generated can be adjusted, thereby improving the taste and achieving the desired atomization effect.

[0048] In addition, the present invention does not specifically limit the shape of the groove 31 , and the groove 31 may be an arc-shaped groove, a trapezoidal groove, a right-angle groove or other shapes.

[0049] It should be noted that this solution does not impose any specific restrictions on the arrangement of the groove 31 on the atomizing surface 10, as long as the function of increasing the liquid film thickness and enhancing the liquid diversion capability is achieved. For example, the groove 31 can be integrally formed on the substrate 1, such as by forming the groove 31 on the atomizing surface 10 through a subtractive process, i.e., the plane where the notch of the groove 31 is located is the atomizing surface 10; for example, 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, i.e., the plane where the bottom wall 311 of the groove 31 is located is the atomizing surface 10.

[0050] Furthermore, in some embodiments, a plurality of first ridges 33 are arranged parallel to and spaced apart from each other in the second direction Y. Each first ridge 33 is arranged parallel to and adjacent to the groove 31. Accordingly, the micropores 32 are arranged corresponding to the first ridges 33. In the first direction Z, the micropores 32 extend through the first ridges 33. In the second direction Y, the port of the micropore 32 near the atomizing surface 10 is larger than the size of the first ridge 33, and the port of the micropore 32 near the atomizing surface 10 communicates with two adjacent grooves 31.

[0051] Among them, the first ridge 33 extends along the third direction X, that is, the setting dimension of the first ridge 33 in the third direction X is the length dimension of the first ridge 33; multiple first ridges 33 are arranged at intervals along the second direction Y, that is, the setting dimension of the first ridge 33 in the second direction Y is the width dimension of the first ridge 33.

[0052] It should be noted that the present invention does not specifically limit the shape and structure of the micropores 32. Figure 8-11 As shown, Figure 8-11The 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 first direction Z can be circular, elliptical, square, triangular, polygonal, or other shapes.

[0053] In some embodiments, the micropores 32 extend along the first direction Z, and the first direction Z is perpendicular to both the atomizing surface 10 and the liquid absorbing surface 20. Figure 8-10 As shown, the micropore 32 is a positive tapered hole, an inverted tapered hole or a straight hole, and the axis of the micropore 32 extends along the first direction Z, that is, the axis of the micropore 32 is perpendicular to the atomization surface 10 and the liquid absorption surface 20.

[0054] In some embodiments, the extension direction of the micropores 32 forms an angle with the first direction Z, and the first direction Z is perpendicular to both the atomizing surface 10 and the liquid absorbing surface 20. Figure 11 As shown, the microhole 32 is an oblique hole, and the axis of the microhole 32 forms an angle with the first direction Z.

[0055] In some embodiments, in the first direction Z, the cross-sectional dimensions of the micropores 32 may be the same, such as Figure 10 and 11 shown.

[0056] In some embodiments, in the first direction Z, the cross-sectional dimensions of the micropores 32 may also be different, such as Figure 8 and 9 shown.

[0057] For example, Figure 8 As shown, the micropore 32 is constructed as a positive cone hole, and the port size of the end close to the atomizing surface 10 is smaller than the port size of the end close to the liquid suction surface 20. Figure 9 As shown, the micropore 32 is constructed as an inverted cone hole, and the port size of the end close to the atomizing surface 10 is larger than the port size of the end close to the liquid suction surface 20. Figure 10 As shown, the micropores 32 are configured as straight holes, that is, the micropores 32 extend along the first direction Z, and the port size of the end close to the atomizing surface 10 is equal to the port size of the end close to the liquid suction surface 20. Figure 11 As shown, the micropores 32 are configured as oblique holes, that is, the extension direction of the micropores 32 forms an angle with the first direction Z, and the port size of the end close to the atomizing surface 10 is equal to the port size of the end close to the liquid suction surface 20.

[0058] For example, the cross-sectional shape of the micropore 32 in the first direction Z is circular, and the port size of the micropore 32 close to the atomizing surface 10 is the aperture of the micropore 32 close to the atomizing surface 10, and the port size of the micropore 32 close to the liquid absorption surface 20 is the aperture of the micropore 32 close to the liquid absorption surface 20.

[0059] In some embodiments, the micropores 32 have a diameter in the range of 5-100 μm, a depth in the range of 0.3-3 mm, and a pitch between the micropores 32 in the range of 5-200 μm. The dimension of the first ridges 33 in the second direction Y, i.e., the width d of the first ridges 33, satisfies the following condition: 1 μm ≤ d ≤ the diameter of the micropore 32 at the end away from the liquid absorbing surface 20.

[0060] Furthermore, in some embodiments, in the third direction X, a plurality of micropores 32 are spaced apart on the first ridge 33. The third direction X is the extension direction of the groove 31, that is, the extension direction of the first ridge 33. Figure 2 As shown in FIG6 , each first ridge 33 is provided with a plurality of micropores 32 at intervals, and the micropores 32 penetrate the first ridge 33 in the first direction Z, and in the second direction Y, the port size of the micropore 32 close to the atomizing surface 10 is larger than the width of the first ridge 33, thereby dividing the first ridge 33 into a plurality of protrusions 331. In this arrangement, the micropores 32 are located on one side of the groove 31, and the inner wall of the micropores 32 is connected to the side wall 312 of the groove 31, forming a plurality of through-channels in the second direction Y; and the micropores 32 and the protrusions 331 are arranged at intervals, and there is a spatial geometric splitting effect between the micropores 32 and the protrusions 331 on the atomizing surface 10, which enhances the liquid absorption capacity of the groove 31 and avoids problems such as dry burning.

[0061] The present invention does not impose any specific restrictions on the number and arrangement of the micropores 32, as long as the liquid supply requirements are met. The number of micropores 32 can be adjusted based on the size of the substrate 1 and the liquid supply requirements. The micropores 32 can be arranged uniformly or unevenly, for example, in a simple cubic arrangement, a face-centered cubic arrangement, a closest-packed arrangement, or other arrangements.

[0062] For example, Figure 1-4 As shown, the plurality of micropores 32 are arranged in an array, and adjacent micropores 32 are arranged opposite each other. Specifically, the micropores 32 include a plurality of micropore columns arranged in parallel in the second direction Y. The plurality of micropores 32 in each micropore column are evenly spaced along the third direction X, and in adjacent micropore columns, the micropores 32 are arranged opposite each other.

[0063] For example, Figure 5-7 As shown, the plurality of micropores 32 are arranged in an array, and adjacent micropores 32 are staggered. Specifically, the micropores 32 include a plurality of micropore columns arranged in parallel in the second direction Y, the plurality of micropores 32 in each micropore column are evenly spaced along the third direction X, and the micropores 32 in adjacent micropore columns are staggered.

[0064] Alternatively, in some embodiments not shown, the micropores 32 may be arranged irregularly, and the number of micropores 32 on each first ridge 33 may be the same or different.

[0065] Furthermore, in some embodiments, the substrate 1 is provided with second ridges 34 formed around the plurality of grooves 31. At least some of the micropores 32 are provided corresponding to the second ridges 34 and communicate with adjacent grooves 31 to further enhance the liquid supply capacity.

[0066] Specifically, in the first direction Z, the micropores 32 penetrate the second ridges 34; in the second direction Y, the micropores 32 communicate with the sidewalls 312 of the adjacent grooves 31, but do not penetrate the second ridges 34, thereby confining the aerosol-generating substrate within the grooves 31 of the atomizing surface 10. A plurality of micropores 32 may be spaced apart on the second ridges 34, preferably spaced apart; and the micropores 32 on the second ridges 34 may be arranged directly opposite or staggered with the micropores 32 on the first ridges 33.

[0067] For example, Figure 1 As shown in FIG5 , the base 1 is constructed in a cubic shape, and the first direction Z, the second direction Y, and the third direction X are perpendicular to each other. The first ridge 33 includes two first sub-ridges 341 and two second sub-ridges 342. The first sub-ridge 341 extends along the third direction X, and the two first sub-ridges 341 are arranged parallel to each other at the two ends of the atomized surface 10 along the second direction Y, that is, the first sub-ridge 341 is arranged parallel to the groove 31 and the first ridge 33; the second sub-ridge 342 extends along the second direction Y, and the two second sub-ridges 342 are arranged parallel to each other at the two ends of the atomized surface 10 along the third direction X, that is, the first sub-ridge 341 is arranged perpendicular to the groove 31 and the first ridge 33.

[0068] In some embodiments, a plurality of the above-mentioned micropores 32 are arranged at intervals on the first sub-protrusion 341; or, in some embodiments, a plurality of the above-mentioned micropores 32 are arranged on the second sub-protrusion 342; or, in some embodiments, a plurality of the above-mentioned micropores 32 are arranged on both the first sub-protrusion 341 and the second sub-protrusion 342.

[0069] In some embodiments, the groove 31 includes the above-mentioned bottom wall 311 and a side wall 312 arranged around the bottom wall 311, and the above-mentioned micropores 32 are all located on one side of the bottom wall 311, and the micropores 32 are connected to the side wall 312 between two adjacent grooves 31. That is, in this embodiment, no micropores are provided on the bottom wall 311. Furthermore, the atomization core includes the above-mentioned heating structure, and the heating structure includes a heating layer 2, a positive electrode 3 and a negative electrode 4. The heating layer 2 is provided on the atomization surface 10, and the heating layer 2 is used to heat the atomized aerosol to generate a matrix, and 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, and the positive electrode 3 is electrically connected to the positive pole of the battery, and the negative electrode 4 is electrically connected to the negative pole of the battery.

[0070] Among them, the groove 31 includes the above-mentioned bottom wall 311 and the side wall 312 surrounded by the bottom wall 311. The heating layer 2 can be arranged on the bottom wall 311 of the groove 31; or the heating layer 2 can be arranged on the bottom wall 311 and the side wall 312 of the groove 31, or the heating layer 2 can be arranged on the bottom wall 311, the side wall 312 of the groove 31 and the end face of the first ridge 33 away from the liquid absorption surface 20; or the heating layer 2 can also be arranged on the second ridge 34, the inner wall of the micropore 32, etc.

[0071] In some embodiments, as Figure 4 As shown, the heating layer 2 is disposed on the bottom wall 311 of the groove 31, and the micropores 32 are all located on one side of the bottom wall 311, that is, no micropores 32 are provided on the bottom wall 311. Specifically, the heating layer 2 includes multiple heating parts, which are arranged one-to-one on the bottom wall 311 of the multiple grooves 31, and the two ends of each heating part are electrically connected to the positive electrode 3 and the negative electrode 4 respectively. In this arrangement, the heating parts of the heating layer 2 are staggered with the micropores 32, which improves the uniformity of heating and the atomization effect.

[0072] Furthermore, the positive electrode 3 and the negative electrode 4 are respectively arranged on the two first sub-protrusions 341 or the second sub-protrusions 342, as shown in FIG. Figure 4 As shown, the groove 31 extends along the third direction X. Accordingly, each heating portion of the heating layer 2 extends along the third direction X. The positive electrode 3 and the negative electrode 4 are respectively located at the two ends of the heating layer 2 in the third direction X, that is, the positive electrode 3 and the negative electrode 4 are respectively arranged on the two second sub-protrusions 342.

[0073] In some embodiments, the setting size of the heating layer 2 in the first direction Z, that is, the thickness range is 1-10 μm. The heating layer 2 can be a resistive heating film. The material of the resistive heating film can be a metal material and alloy material that can be used for heating, such as stainless steel, iron-chromium-aluminum, platinum, gold, etc. For example, the resistive heating film can be formed by a vapor deposition process such as magnetron sputtering, vacuum evaporation, plasma deposition, atomic layer deposition, etc., or it can be formed by an electroplating process.

[0074] In some embodiments, the heating layer 2 is a resistive heating film, which is disposed on the bottom wall of the groove, and whose ends are electrically connected to the positive electrode 3 and the negative electrode 4, respectively. With this arrangement, the resistive heating film extends between the positive electrode 3 and the negative electrode 4, and the resistive heating film is free of blocking structures such as holes. This ensures that the heating resistor material within the resistive heating film is evenly distributed, resulting in more uniform heat generation and improved atomization.

[0075] In some embodiments, the matrix 1 may be a dense matrix, wherein the dense matrix refers to a matrix 1 having a porosity less than 10% except for the micropores 32 .

[0076] Furthermore, this solution does not impose any specific restrictions on the material, shape, or configuration of the substrate 1, as long as it can match the housing. The materials of the substrate 1 include, but are not limited to, glass, quartz, silicon, ceramic, and other micro-nano process substrates, and the shapes of the substrate 1 include, but are not limited to, cubes, blocks, columns, plates, or other irregular shapes.

[0077] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] 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) has an atomizing surface (10) and a liquid absorbing surface (20) arranged opposite to each other, and the base (1) is provided with a plurality of grooves (31), a plurality of first ridges (33) and a plurality of micropores (32); the grooves (31) and the first ridges (33) are formed on the atomizing surface (10), the plurality of grooves (31) are parallel to each other and arranged at intervals, and one first ridge (33) is formed between two adjacent grooves (31); the micropores (32) penetrate the atomizing surface (10) and the liquid absorbing surface (20), each first ridge (33) is correspondingly provided with the micropore (32), and the micropores (32) communicate with two adjacent grooves (31).

2. The atomizer core according to claim 1, characterized in that In a first direction, the micropore (32) passes through the first convex strip (33); in a second direction, the port size of the micropore (32) close to the atomizing surface (10) is larger than the setting size of the first convex strip (33), and the port of the micropore (32) close to the atomizing surface (10) is connected to two adjacent grooves (31); The first direction is the direction from the atomizing surface (10) to the liquid absorbing surface (20); and the second direction is the spacing direction of the plurality of grooves (31).

3. The atomizer core according to claim 2, characterized in that The micropores (32) are arranged to extend along the first direction; and / or, In the first direction, the cross-sectional dimensions of the micropores (32) are the same; and / or, In the first direction, the cross-sectional shape of the micropore (32) is circular; The first direction is perpendicular to both the atomizing surface (10) and the liquid absorbing surface (20).

4. The atomizer core according to claim 1, characterized in that In the third direction, a plurality of micropores (32) are arranged at intervals on the first convex strip (33); The third direction is the extension direction of the first convex strip (33).

5. The atomizer core according to claim 1, characterized in that A second convex strip (34) is provided on the base (1), and the second convex strip (34) is formed on the periphery of the plurality of grooves (31); at least part of the micropores (32) are provided corresponding to the second convex strip (34), and the micropores (32) are communicated with adjacent grooves (31).

6. The atomizer core according to claim 1, characterized in that The plurality of micropores (32) are distributed in an array, and in the second direction, adjacent micropores (32) are arranged opposite each other or staggered; The second direction is the spacing direction of the plurality of grooves (31).

7. The atomizer core according to any one of claims 1 to 6, characterized in that: The matrix (1) is a dense matrix.

8. 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), 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.

9. The atomizer core according to claim 8, characterized in that The matrix (1) is a dense matrix; The groove (31) has a bottom wall (311), and the micropores (32) are all located on one side of the bottom wall (311); the heating layer (2) is a resistive heating film, and the resistive heating film is arranged on the bottom wall (311) of the groove (31).

10. The atomizer core according to claim 8, characterized in that: The atomizing core further comprises a positive electrode (3) and a negative electrode (4), and both ends of the heating layer (2) are electrically connected to the positive electrode (3) and the negative electrode (4) respectively.

11. 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 10, wherein the atomizer core is in fluid communication with the liquid storage chamber.

12. An electronic atomization device, characterized in that: include: The atomizer according to claim 11; The host is used to provide electrical energy for the atomizer to operate.

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