Atomizing core

Abstract

The utility model provides an atomizing core which comprises a compact base body and a heating body, the compact base body comprises a liquid guide face and an atomizing face which are oppositely arranged in the thickness direction, and the liquid guide face is used for facing an atomizing medium; the heating body is arranged on the atomizing surface, so that a main atomizing area and a secondary atomizing area surrounding the periphery of the main atomizing area are formed on the atomizing surface; the atomizing core is provided with a plurality of liquid guide micropores extending in the thickness direction; wherein the liquid guide micropores comprise first sub liquid guide micropores which are formed in the compact matrix and are distributed in the main atomization area and the secondary atomization area at intervals, and the first sub liquid guide micropores are communicated with the liquid guide surface and the atomization surface. The atomizing medium flows from the liquid guide face in the thickness direction and flows to the atomizing face, and the heating body heats and atomizes the atomizing medium. In addition, the heating body can directly transfer heat to the atomizing medium through the first liquid guide micropores, rapid melting of the high-viscosity atomizing medium is facilitated, the flowability of the atomizing medium is improved, sufficient liquid supply of the high-viscosity atomizing medium is guaranteed, and the atomizing efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of electronic atomization technology, and in particular relates to an atomizing core. Background Technology

[0002] The atomizing core is used to heat the atomizing medium for the user to inhale. The viscosity of atomizing media on the market varies widely, ranging from tens to hundreds of thousands of cp / mPa·s at room temperature. When atomizing high-viscosity media, the poor flow properties of the atomizing medium often necessitate a specially designed atomizing core. Traditional ceramic atomizing cores mostly use porous materials for mass and heat transfer; however, due to the complex pores and high tortuosity of ceramic atomizing cores, their liquid guiding path is long, making it difficult to supply liquid when atomizing high-viscosity media. Utility Model Content

[0003] The technical objective of this invention is to provide an atomizing core that addresses the technical problem of difficult liquid supply when atomizing highly viscous atomizing media using ceramic atomizing cores.

[0004] To solve the above-mentioned technical problems, this utility model is implemented as follows: an atomizing core includes a dense substrate and a heating element. The dense substrate includes a liquid guiding surface and an atomizing surface disposed opposite each other along the thickness direction, the liquid guiding surface being oriented towards the atomizing medium; the heating element is disposed on the atomizing surface such that the atomizing surface forms a main atomizing region and a secondary atomizing region surrounding the main atomizing region; the atomizing core has a plurality of liquid guiding micropores extending along the thickness direction; wherein, the liquid guiding micropores include a first sub-liquid guiding micropore formed in the dense substrate and spaced apart between the main atomizing region and the secondary atomizing region, the first sub-liquid guiding micropore connecting the liquid guiding surface and the atomizing surface.

[0005] Furthermore, in some embodiments, some of the liquid guiding micropores also include a second sub-liquid guiding micropore formed on the heating element and penetrating the heating element along the thickness direction, the second sub-liquid guiding micropore being correspondingly connected to the first liquid guiding micropore in the main atomization region.

[0006] Furthermore, in some embodiments, a single liquid-guiding micropore includes at least two circular oriented holes, and a plurality of circular oriented holes are arranged in series along a first direction, with adjacent two circular oriented holes intersecting to communicate; the first direction is perpendicular to the thickness direction.

[0007] Furthermore, in some embodiments, the relationship between the distance L between the centers of two adjacent circular directional holes and the radius R of a single circular directional hole in a single liquid guiding micropore is: R / 2 < L < R.

[0008] Furthermore, in some embodiments, a single liquid-guiding micropore includes at least three circular oriented holes, and a plurality of circular oriented holes are arranged circumferentially, and the plurality of circular oriented holes are intersecting to communicate with each other; wherein, any one of the circular oriented holes intersects with all the remaining circular oriented holes or with a portion of the remaining circular oriented holes.

[0009] Furthermore, in some embodiments, a single liquid-guiding micropore includes three circular oriented holes, the lines connecting the centers of the three circular oriented holes form an equilateral triangle, and the relationship between the distance L between the centers of any two circular oriented holes and the radius R of a single circular oriented hole is: R ≤ L < 2R.

[0010] Furthermore, in some embodiments, the plurality of liquid-guiding micropores are arranged in an array at intervals, and the liquid-guiding micropores in the nth row and the liquid-guiding micropores in the (n+1)th row are staggered, and the liquid-guiding micropores in the nth column and the liquid-guiding micropores in the (n+1)th column are staggered, where n≥1.

[0011] Furthermore, in some embodiments, the flow area of ​​the liquid-guiding micropores is equal along the thickness direction.

[0012] Furthermore, in some embodiments, the flow area of ​​the liquid guiding micropores gradually decreases along the thickness direction and from the liquid guiding surface to the atomizing surface.

[0013] Furthermore, in some embodiments, the dense matrix includes at least two sub-dense matrices that overlap each other, wherein the surface of the top sub-dense matrix is ​​the liquid guiding surface, and the surface of the bottom sub-dense matrix is ​​the atomizing surface; the first liquid guiding micropore includes through holes disposed in each of the sub-dense matrices and interconnected with each other.

[0014] Furthermore, in some embodiments, in the same first liquid-conducting micropore, each of the through holes is staggered along the thickness direction.

[0015] Furthermore, in some embodiments, in the same first liquid-guiding micropore, the centers of each of the through holes are collinear along the thickness direction, and the pore structure size of each through hole gradually decreases along the direction from the liquid-guiding surface to the atomizing surface.

[0016] Furthermore, in some embodiments, the dense matrix includes a first sub-dense matrix and a second sub-dense matrix stacked together, wherein the side of the first sub-dense matrix facing away from the second sub-dense matrix is ​​the liquid guiding surface, and the side of the second sub-dense matrix facing away from the first sub-dense matrix is ​​the atomizing surface; the first liquid guiding micropore includes a first through hole disposed in the first sub-dense matrix and a second through hole disposed in the second sub-dense matrix; the atomizing core further includes a cotton fiber layer disposed between the first sub-dense matrix and the second sub-dense matrix, and the first through hole and the second through hole are connected through the cotton fiber layer.

[0017] Compared with related technologies, the atomizing core in this invention has the following advantages:

[0018] In this embodiment of the invention, the atomizing core includes a dense substrate and a heating element. The liquid-guiding surface of the dense substrate faces the atomizing medium and is used to guide the atomizing medium. The heating element is disposed on the atomizing surface of the dense substrate. Furthermore, the atomizing core has multiple liquid-guiding micropores extending along the thickness direction. Each micropore includes a first sub-liquid-guiding micropore connecting the liquid-guiding surface and the atomizing surface. The atomizing medium can flow from the liquid-guiding surface along the thickness direction to the atomizing surface, allowing the heating element to heat and atomize the atomizing medium. The first sub-liquid-guiding micropores are spaced apart in the main atomizing region and the secondary atomizing region, allowing the heat from the heating element to be better used for heating and atomizing the atomizing medium, reducing energy loss and improving energy utilization. Moreover, the heating element can directly transfer heat to the atomizing medium through the first liquid-guiding micropores, which facilitates the rapid melting of highly viscous atomizing media, improves the fluidity of the atomizing medium, ensures sufficient liquid supply for highly viscous atomizing media, and improves atomization efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the atomizing core and an enlarged view of the liquid guiding micropores in Embodiment 1 of this utility model;

[0021] Figure 2 This is a schematic diagram of the atomizing core and an enlarged view of the liquid guiding micropores in Embodiment 2 of this utility model;

[0022] Figure 3 This is a schematic diagram of the atomizing core in Embodiment 3 of this utility model;

[0023] Figure 4 This is a cross-sectional schematic diagram of the atomizing core in Embodiment 4 of this utility model;

[0024] Figure 5 This is a cross-sectional schematic diagram of the atomizing core in Embodiment 5 of this utility model;

[0025] Figure 6 This is a cross-sectional schematic diagram of the atomizing core in Embodiment 6 of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the plate material in an embodiment of this utility model;

[0027] Figure 8 This is a cross-sectional schematic diagram of the atomizing core in Embodiment 7 of this utility model;

[0028] Figure 9 This is a cross-sectional schematic diagram of the atomizing core in Embodiment 8 of this utility model.

[0029] In the accompanying drawings, the reference numerals represent: 1. Dense substrate; 11. Liquid guiding surface; 12. Atomizing surface; 13. First sub-dense substrate; 14. Second sub-dense substrate; 2. Heating element; 3. Liquid guiding micropore; 31. First sub-liquid guiding micropore; 32. Second sub-liquid guiding micropore; 4. Cotton fiber layer; 5. Ventilation pore. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] Please see Figures 1 to 9 This utility model provides an atomizing core, including a dense substrate 1 and a heating element 2. The dense substrate 1 includes a liquid guiding surface 11 and an atomizing surface 12 disposed opposite to each other along the thickness direction. The liquid guiding surface 11 is oriented toward the atomizing medium. The heating element 2 is disposed on the atomizing surface 12, such that the atomizing surface 12 forms a main atomizing region and a secondary atomizing region surrounding the main atomizing region. The atomizing core has a plurality of liquid guiding micropores 3 extending along the thickness direction. The liquid guiding micropores 3 include a first sub-liquid guiding micropore 31 formed on the dense substrate 1 and spaced apart between the main atomizing region and the secondary atomizing region. The first sub-liquid guiding micropore 31 communicates with the liquid guiding surface 11 and the atomizing surface 12.

[0034] In this embodiment of the invention, the atomizing core includes a dense substrate 1 and a heating element 2. The liquid-guiding surface 11 of the dense substrate 1 faces the atomizing medium and is used to guide the atomizing medium. The heating element 2 is disposed on the atomizing surface 12 of the dense substrate 1. In addition, the atomizing core has a plurality of liquid-guiding micropores 3 extending along the thickness direction. The liquid-guiding micropores 3 include a first sub-liquid-guiding micropore 31 that connects the liquid-guiding surface 11 and the atomizing surface 12. The atomizing medium can flow from the liquid-guiding surface 11 along the thickness direction to the atomizing surface 12, so that the heating element 2 can heat and atomize the atomizing medium. The first sub-fluid guiding micropores 31 are spaced apart in the main atomization region and the secondary atomization region, so that the heat of the heating element 2 can be better used for heating and atomizing the atomizing medium, reducing energy loss and improving energy utilization. In addition, the heating element 2 can also directly transfer heat to the atomizing medium through the first fluid guiding micropores 3, which is conducive to the rapid melting of the high-viscosity atomizing medium, can improve the fluidity of the atomizing medium, ensure sufficient liquid supply of the high-viscosity atomizing medium, and improve atomization efficiency.

[0035] Furthermore, in some embodiments, the dense substrate 1 can be glass, for example, borosilicate glass, quartz glass or photosensitive lithium aluminosilicate glass. Compared with the existing cotton wick heating element 2 and porous ceramic heating element 2, the liquid-conducting dense substrate 1 made of dense materials such as glass has a shorter liquid supply channel and a faster liquid supply speed.

[0036] Furthermore, in some embodiments, some liquid guiding micropores 3 further include a second sub-liquid guiding micropore 32 formed on the heating element 2 and penetrating the heating element 2 along the thickness direction, the second sub-liquid guiding micropore 32 being correspondingly connected to the first liquid guiding micropore 3 in the main atomization region.

[0037] Specifically, among all the liquid-guiding micropores 3, some liquid-guiding micropores 3 include a first sub-liquid-guiding micropore 31 and a second sub-liquid-guiding micropore 32, while others only include the first sub-liquid-guiding micropore 31. The area covered by the heating element 2 on the atomizing surface 12, i.e., the main atomizing area, contains liquid-guiding micropores 3, including both the first sub-liquid-guiding micropore 31 and the second sub-liquid-guiding micropore 32. The area not covered by the heating element 2, i.e., the secondary atomizing area, contains liquid-guiding micropores 3, including only the first sub-liquid-guiding micropore 31. In other words, the heating element 2 also has micropores extending along its thickness direction, which improves the liquid guiding effect of the atomized liquid and also enhances the heat transfer effect.

[0038] Furthermore, in some embodiments, please refer to Figure 1 Each liquid guiding micropore 3 includes at least two circular oriented holes, and multiple circular oriented holes are arranged in series along a first direction, with adjacent two circular oriented holes intersecting to communicate; the first direction is perpendicular to the thickness direction.

[0039] Specifically, a single liquid-guiding micropore 3 can be composed of multiple circular oriented holes connected in series. The number of central oriented holes in each liquid-guiding micropore 3 can be the same or different. The first direction can be any direction along the horizontal direction, such as the length direction or width direction of the atomizing core; the series direction of the central oriented holes in each liquid-guiding micropore 3 can be the same or different. In a single liquid-guiding micropore 3, multiple circular oriented holes intersect to connect, such that the relationship between the distance L between the centers of two adjacent circular oriented holes and the radius R of a single circular oriented hole is 0 < L < 2R. This ensures that two circular oriented holes intersect but do not completely overlap. In this way, the relationship between liquid supply and anti-clogging of the atomizing core and liquid leakage can be balanced, ensuring sufficient liquid supply efficiency while effectively preventing liquid leakage.

[0040] Furthermore, in some embodiments, please refer to Figure 1 In a single liquid-conducting micropore 3, the relationship between the distance L between the centers of two adjacent circular directional holes and the radius R of the single circular directional hole is: R / 2 < L < R.

[0041] Specifically, based on the fluidity of the atomizing medium, the relationship between the distance L between the centers of the two circular directional holes and the radius R of a single circular directional hole can be further adjusted. By setting R / 2 < L < R, the liquid guiding micro-hole 3 has a larger fluid contact surface area than the same isosceles orifice, which can further improve the leak-proof effect while ensuring smooth liquid supply.

[0042] Furthermore, in some embodiments, please refer to Figure 2 Each liquid guiding micropore 3 includes at least three circular oriented holes, and multiple circular oriented holes are arranged around the periphery and intersecting to communicate with each other; wherein, any one circular oriented hole intersects with all the remaining circular oriented holes or with some of the remaining circular oriented holes.

[0043] Specifically, a single liquid-guiding micropore 3 can be composed of multiple intersecting circular oriented holes, forming a circle; the number of circular oriented holes in each liquid-guiding micropore 3 can be the same or different. Among the multiple circular oriented holes in a single liquid-guiding micropore 3, one circular oriented hole can intersect with all the remaining circular oriented holes, or it can intersect only with some of the remaining circular oriented holes; the arrangement of each liquid-guiding micropore 3 can be the same or different. By arranging the liquid-guiding micropore 3 as multiple circular oriented holes forming a circle, the relationship between liquid supply and anti-clogging of the atomizing core and liquid leakage can be balanced, ensuring sufficient liquid supply efficiency while effectively preventing leakage.

[0044] Furthermore, in some embodiments, please refer to Figure 2 Each liquid guiding micropore 3 includes three circular directional holes. The line connecting the centers of the three circular directional holes forms an equilateral triangle. Furthermore, the relationship between the distance L between the centers of any two circular directional holes and the radius R of a single circular directional hole is: R≤L<2R.

[0045] Specifically, it is preferred that a single liquid guiding micro-orifice 3 is composed of three circular directional holes arranged in a circle, and the line connecting the centers of the three circular directional holes forms an equilateral triangle. By setting the relationship between the distance L between the centers of any two circular directional holes and the radius R of a single circular directional hole to R≤L<2R, the wall area of ​​the liquid guiding micro-orifice 3 in contact with the fluid is maximized under the same flow area, thereby ensuring smooth flow of the atomizing medium while further preventing leakage.

[0046] Furthermore, in some embodiments, please refer to Figure 3 Multiple liquid-conducting micropores 3 are arranged in an array at intervals, and the liquid-conducting micropores 3 in the nth row and the liquid-conducting micropores 3 in the (n+1)th row are staggered, and the liquid-conducting micropores 3 in the nth column and the liquid-conducting micropores 3 in the (n+1)th column are staggered, where n≥1.

[0047] Specifically, the liquid guiding micropores 3 are disposed in the main atomization region and the secondary atomization region of the atomization surface 12, and the liquid guiding micropores 3 are connected along the thickness direction of the atomization core. Therefore, the liquid guiding micropores 3 include through holes disposed in the dense substrate 1 and through holes disposed in the heating region of the heating element 2. The two ends of the heating region of the heating element 2 are used to connect electrodes. When a pin connection is used, the heating element 2 will be subjected to a certain force. To prevent the atomizing core from being damaged by the force on the liquid guiding micropores 3, multiple liquid guiding micropores 3 are arranged at intervals along rows and columns. Furthermore, the liquid guiding micropores 3 in odd-numbered rows and even-numbered rows are staggered, as are the liquid guiding micropores 3 in odd-numbered columns and even-numbered columns. This staggers the arrangement of the liquid guiding micropores 3 in one direction and the relatively orthogonal direction of the atomizing core. In this way, the liquid guiding micropores 3 in odd-numbered rows and even-numbered rows can form multiple triangular distribution structures, thereby balancing the forces on the atomizing core and enhancing structural stability through triangular stability. Further, in some embodiments, the liquid guiding micropores 3 in odd-numbered rows and even-numbered rows form multiple isosceles triangular distribution structures, which can better balance the forces and improve structural strength.

[0048] Understandably, in the above embodiments, a single liquid guiding micropore 3 can be a separate circular directional hole, or it can be multiple circular directional holes arranged in series and intersecting along the first direction, or multiple circular directional holes arranged in a circle and intersecting.

[0049] Furthermore, in some embodiments, the flow area of ​​the liquid-guiding micropores 3 is equal along the thickness direction. By spaced the liquid-guiding micropores 3 between the main atomization region and the secondary atomization region, the heat from the heating element 2 can be better used for heating and atomizing the atomizing medium, reducing energy loss and improving energy utilization. Moreover, the heating element 2 can directly transfer heat to the atomizing medium through the liquid-guiding micropores 3, which facilitates the rapid melting of highly viscous atomizing media, improves the fluidity of the atomizing medium, ensures sufficient liquid supply for highly viscous atomizing media, and enhances atomization efficiency.

[0050] Understandably, in the above embodiments, a single liquid guiding micropore 3 can be a separate circular directional hole, or it can be multiple circular directional holes arranged in series and intersecting along the first direction, or multiple circular directional holes arranged in a circle and intersecting.

[0051] Furthermore, in some embodiments, please refer to Figure 4 Along the thickness direction, and from the liquid guiding surface 11 to the atomizing surface 12, the flow area of ​​the liquid guiding micropores 3 gradually decreases. In this way, when the atomizing medium flows from the liquid guiding surface 11 to the atomizing surface 12 through the liquid guiding micropores 3, the flow speed of the atomizing medium can be accelerated, thereby supplying liquid to the atomizing surface 12 more promptly.

[0052] Understandably, in the above embodiments, a single liquid guiding micropore 3 can be a separate circular directional hole, or it can be multiple circular directional holes arranged in series and intersecting along the first direction, or multiple circular directional holes arranged in a circle and intersecting.

[0053] Furthermore, in some embodiments, please refer to Figure 5 , Figure 6 and Figure 8 The dense matrix 1 includes at least two sub-dense matrices that are stacked on top of each other, wherein the surface of the top sub-dense matrix is ​​a liquid-conducting surface 11 and the surface of the bottom sub-dense matrix is ​​an atomizing surface 12; the first liquid-conducting micropore 31 includes through holes disposed in each sub-dense matrix and interconnected with each other.

[0054] Specifically, the atomizing core may include multiple sub-dense substrates and a heating element 2, wherein the multiple sub-dense substrates are stacked on top of each other. Among the multiple sub-dense substrates, along the thickness direction, the two surfaces exposed to the outside are a liquid guiding surface 11 and an atomizing surface 12, respectively. Similarly, the heating element 2 is disposed on the atomizing surface 12. In addition, each sub-dense substrate is provided with through holes, and the through holes correspond one-to-one along the thickness direction. Therefore, along the thickness direction, the corresponding through holes of different dense substrates 1 form a first sub-liquid guiding micropore 31. The atomizing medium flows from the liquid guiding surface 11 through each through hole and finally flows to the atomizing surface 12.

[0055] For example, multiple sub-dense substrates are stacked with a thickness of less than 1 mm, thereby achieving an ultrathin dense substrate 1.

[0056] It should be noted that the sub-dense matrix is ​​actually also a dense matrix 1. It is used here only to distinguish it from the embodiment with only one dense matrix 1. Multiple sub-dense matrices indicate that the atomizing core has multiple dense matrices 1.

[0057] Understandably, in the above embodiments, a single liquid guiding micropore 3 can be a separate circular directional hole, or it can be multiple circular directional holes arranged in series and intersecting along the first direction, or multiple circular directional holes arranged in a circle and intersecting.

[0058] It should be noted that in some possible implementations, the liquid guiding micropores 3 in the above embodiments can be arranged in an array, and can be staggered or aligned.

[0059] Furthermore, in some embodiments, please refer to Figure 5 and Figure 6 In the same first sub-fluid guiding micro-hole 31, each through hole is staggered along the thickness direction.

[0060] Specifically, when there are multiple sub-dense substrates, the same first sub-liquid guiding micropore 31 is composed of through holes corresponding to multiple sub-dense substrates. Furthermore, the through holes of different sub-dense substrates are staggered along the thickness direction but connected, thereby balancing the relationship between liquid supply to the atomizing core, preventing core clogging, and preventing leakage. This ensures sufficient liquid supply efficiency while effectively preventing leakage. Additionally, along the thickness direction, in the same first sub-liquid guiding micropore 31, there is a distance between the centerline extensions of one through hole and the centerline extensions of the other through hole; that is, the staggering of two adjacent through holes can be adjusted according to the flowability of the atomizing medium.

[0061] Furthermore, it is understandable that the offset direction along the thickness direction can be consistently offset to the left, or occasionally offset to the left and occasionally offset to the right, as long as all through holes are connected.

[0062] It should be noted that in some possible implementations, the liquid guiding micropores 3 in the above embodiments can be arranged in an array, and can be staggered or aligned.

[0063] Furthermore, it should be noted that in some embodiments, some liquid guiding micropores 3 include a first sub-liquid guiding micropore 31 and a second sub-liquid guiding micropore 32. In these embodiments, the second sub-liquid guiding micropore 32 may be collinear with the adjacent through hole or may be staggered from the adjacent through hole.

[0064] Furthermore, in some specific embodiments, please refer to Figure 7 The dense substrate 1 can be obtained by cutting the entire plate after processing the pore arrangement. In this way, by adjusting the cutting position, the pores of different dense substrates 1 can be misaligned after stacking, that is, the projected areas of different sub-substrates along the thickness direction can not be completely equal, so as to construct the required first sub-liquid guiding micropores 31.

[0065] Furthermore, in some embodiments, please refer to Figure 8 In the same first sub-fluid guiding micropore 31, the centers of each through hole are collinear along the thickness direction, and the pore structure size of each through hole gradually decreases along the direction from the fluid guiding surface 11 to the atomizing surface 12.

[0066] Specifically, the centerlines of multiple through holes can be aligned on the same straight line, and the pore size of each through hole can be gradually reduced along the thickness direction from the liquid guiding surface 11 to the atomizing surface 12. This allows the atomizing medium to flow faster from the liquid guiding surface 11 to the atomizing surface 12 through the first sub-liquid guiding micro-hole 31, thus supplying liquid to the atomizing surface 12 more promptly.

[0067] It should be noted that in some possible implementations, the liquid guiding micropores 3 in the above embodiments can be arranged in an array, and can be staggered or aligned.

[0068] Furthermore, in some embodiments, please refer to Figure 9 The dense substrate 1 includes a first sub-dense substrate 13 and a second sub-dense substrate 14 stacked together. The side of the first sub-dense substrate 13 facing away from the second sub-dense substrate 14 is a liquid guiding surface 11, and the side of the second sub-dense substrate 14 facing away from the first sub-dense substrate 13 is an atomizing surface 12. The first sub-liquid guiding micropore 31 includes a first through hole disposed in the first sub-dense substrate 13 and a second through hole disposed in the second sub-dense substrate 14. The atomizing core also includes a cotton fiber layer 4, which is disposed between the first sub-dense substrate 13 and the second sub-dense substrate 14. The first through hole and the second through hole are connected through the cotton fiber layer 4.

[0069] Specifically, the atomizing core includes a first sub-dense substrate 13, a second sub-dense substrate 14, a cotton fiber layer 4, and a heating element 2. The heating element 2 is disposed on the side of the second sub-dense substrate 14 facing away from the first sub-dense substrate 13. The side of the first sub-dense substrate 13 facing away from the second sub-dense substrate 14 is oriented towards the atomizing medium. The cotton fiber layer 4 is fixed between the first sub-dense substrate 13 and the second sub-dense substrate 14. Along the thickness direction, the first sub-liquid guiding micropore 31 includes a first through-hole and a correspondingly connected second through-hole. The atomizing medium flows from the liquid guiding surface 11 through the first through-hole, the cotton fiber layer 4, and the second through-hole to the atomizing surface 12. By providing the cotton fiber layer 4, the relationship between liquid supply and anti-clogging of the atomizing core and liquid leakage can be balanced, ensuring sufficient liquid supply efficiency while effectively preventing leakage.

[0070] In addition, multiple layers of cotton fiber 4 can be provided between the first sub-dense matrix 13 and the second sub-dense matrix 14, and can be matched according to the flowability of the atomizing medium.

[0071] It should be noted that the first sub-dense matrix 13 and the second sub-dense matrix 14 are actually also dense matrix 1, indicating that the atomizing core has two.

[0072] Furthermore, in some embodiments, please refer to Figures 1 to 3 A directional ventilation hole 5 is provided at a position of the atomizing core away from the sub-atomizing area, thereby enabling ventilation.

[0073] Furthermore, in some embodiments, please refer to Figures 1 to 3 The flow area of ​​the directional ventilation hole 5 is larger than that of any liquid guiding micropore 3, thereby achieving preferential ventilation and preventing ventilation bubbles from affecting the atomization process. In the above embodiments, the descriptions of each embodiment have their own emphasis. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0074] The above is a description of the technical solution provided by this utility model. For those skilled in the art, based on the idea of ​​the embodiments of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An atomizing core, characterized in that, The application relates to an atomizing core, which comprises: a dense base body, which comprises a liquid guiding surface and an atomizing surface arranged oppositely along a thickness direction, the liquid guiding surface being used for guiding atomizing medium; a heating body arranged on the atomizing surface, so that the atomizing surface is formed with a main atomizing area and a secondary atomizing area surrounding the main atomizing area; the atomizing core has a plurality of liquid guiding micro-holes extending along the thickness direction; wherein the liquid guiding micro-holes comprise first liquid guiding micro-holes formed on the dense base body and distributed in the main atomizing area and the secondary atomizing area, and the first liquid guiding micro-holes are communicated with the liquid guiding surface and the atomizing surface.

2. The atomizer core of claim 1, wherein, Some of the liquid guiding micro-holes further comprise second liquid guiding micro-holes formed on the heating body and penetrating the heating body along the thickness direction, and the second liquid guiding micro-holes are communicated with the first liquid guiding micro-holes of the main atomizing area.

3. The atomizer core according to claim 1 or 2, characterized in that Each of the liquid guiding micro-holes comprises at least two circular directional holes, a plurality of the circular directional holes are arranged in series along a first direction, and two adjacent circular directional holes are intersected to be communicated; the first direction is perpendicular to the thickness direction.

4. The atomizer core of claim 3, wherein, In each of the liquid guiding micro-holes, the distance L between the centers of two adjacent circular directional holes and the radius R of each circular directional hole satisfy the relationship R / 2 5. The atomizer core of claim 1 or 2, wherein Each of the liquid guiding micro-holes comprises at least three circular directional holes, a plurality of the circular directional holes are arranged in a circumferential direction, and a plurality of the circular directional holes are arranged to be intersected to be communicated with each other; wherein any one of the circular directional holes is intersected with all the other circular directional holes or is intersected with part of the other circular directional holes.

6. The atomizer core of claim 5, wherein, Each of the liquid guiding micro-holes comprises three circular directional holes, the line connecting the centers of the three circular directional holes forms an equilateral triangle, and the distance L between the centers of any two circular directional holes and the radius R of each circular directional hole satisfy the relationship R 7. The atomizer core of claim 1 or 2, wherein A plurality of the liquid guiding micro-holes are arranged in an array, and the liquid guiding micro-holes in the nth row and the liquid guiding micro-holes in the (n+1)th row are staggered, and the liquid guiding micro-holes in the nth column and the liquid guiding micro-holes in the (n+1)th column are staggered, wherein n is greater than or equal to 1.

8. The atomizer core of claim 1 or 2, wherein, Along the thickness direction, the flow area of the liquid guiding micro-holes is equivalent; or, along the thickness direction and from the liquid guiding surface to the atomizing surface, the flow area of the liquid guiding micro-holes is gradually reduced.

9. The atomizer core of claim 1 or 2, wherein, The dense base body comprises at least two sub-dense base bodies which are overlapped with each other, wherein the surface of the sub-dense base body located at the top is the liquid guiding surface, and the surface of the sub-dense base body located at the bottom is the atomizing surface; the first liquid guiding micro-holes comprise through holes arranged on each of the sub-dense base bodies and communicated with each other.

10. The atomizer core of claim 9, wherein, In the same first liquid guiding micro-hole, the through holes are arranged in a staggered manner along the thickness direction; or, In the same first liquid guiding micro-hole, the centers of the through holes are collinear along the thickness direction, and the aperture structure size of each through hole is gradually reduced along the direction from the liquid guiding surface to the atomizing surface.

11. The atomizer core of claim 1, wherein, The dense base comprises a first sub-dense base and a second sub-dense base which are superimposed, a side of the first sub-dense base away from the second sub-dense base is the liquid guiding surface, and a side of the second sub-dense base away from the first sub-dense base is the atomizing surface; the first liquid guiding micropore comprises a first through hole arranged in the first sub-dense base and a second through hole arranged in the second sub-dense base; the atomizing core further comprises a cotton fiber layer arranged between the first sub-dense base and the second sub-dense base, and the first through hole and the second through hole are communicated through the cotton fiber layer.

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