Atomizing core, atomizing equipment and preparation method of atomizing core

Abstract

The embodiment of the invention provides an atomizing core, atomizing equipment and a preparation method of the atomizing core. The preparation method comprises the following steps: providing a substrate, and carrying out first laser preforming operation on the substrate to form a preformed runner array; second laser preforming operation is carried out in the substrate, so that at least one layer of preforming liquid storage channel is formed between the first surface and the second surface; forming operation is conducted on the preformed flow channel array to form a flow channel array, the flow channel array comprises a plurality of flow channels, and the flow channels penetrate from the first surface to the second surface; and forming operation is conducted on the at least one layer of preformed liquid storage channel, so that the at least one layer of preformed liquid storage channel forms at least one layer of liquid storage channel, and the at least one layer of liquid storage channel communicates with at least some of the multiple flow channels. According to the atomizing core prepared by the preparation method, the uniformity of oil supply to the heating body can be ensured, and the oil storage function of the atomizing core is enhanced, so that the atomizing stability is improved.

Description

Technical Field

[0001] The exemplary embodiments of the present disclosure generally relate to the field of atomization technology, and in particular to an atomization core, an atomization device, and a method for preparing the atomization core. Background Art

[0002] When a conventional atomizer is powered, the atomizer core can heat and atomize the liquid atomizer matrix to produce an aerosol for inhalation. As the core component of the atomizer, the atomizer core determines the atomization effect and user experience of the atomizer.

[0003] The manufacturing process of the atomizer core determines its structure and performance. The atomizer core manufactured using conventional manufacturing processes has uneven oil supply to the heating element and weak liquid storage function, which affects the user's smoking experience.

[0004] With the advancement of technology, users have higher and higher requirements on the atomization effect of atomization equipment. In order to meet the needs of users, it is necessary to provide an atomization core with better atomization effect, which also puts higher requirements on the preparation process and method of the atomization core. Summary of the invention

[0005] The purpose of the present disclosure is to provide an atomizer core, an atomizer device, and a method for preparing a glass-based atomizer core, so as to at least partially solve the above-mentioned problems and / or other potential problems existing in traditional atomizer devices.

[0006] In the first aspect of the present disclosure, a method for preparing a glass-based atomizing core is provided. The preparation method comprises: providing a substrate, the substrate comprising a first surface and a second surface parallel to each other; performing a first laser preforming operation on the substrate to form a preformed flow channel array, the preformed flow channel array comprising a plurality of preformed flow channels arranged in a pattern of a predetermined shape; performing a second laser preforming operation in the substrate to form at least one layer of preformed liquid storage channels connecting the plurality of preformed flow channels between the first surface and the second surface; performing a forming operation on the preformed flow channel array to form a flow channel array, the flow channel array comprising a plurality of flow channels formed by a plurality of preformed flow channels through a forming operation, the plurality of flow channels extending from the first surface to the second surface; and performing a forming operation on at least one layer of preformed liquid storage channels, so that at least one layer of preformed liquid storage channels forms at least one layer of liquid storage channels, the at least one layer of liquid storage channels being connected to at least some of the plurality of flow channels.

[0007] In an embodiment according to the present disclosure, multiple flow channels are interconnected through a liquid storage channel so that the liquid level of the atomized matrix in the flow channel remains consistent, thereby improving the fluidity of the atomized matrix inside the atomizer core. When a small number of flow channel inlets are blocked, the atomized matrix can be supplemented between the flow channels to ensure the atomization effect. At the same time, the liquid storage channel provides more storage space for the atomized matrix, thereby enhancing the oil storage function of the atomizer core and further improving the stability of atomization.

[0008] Through the above preparation method, the porosity of the flow channel can be accurately controlled during the production of the atomizer core, with a small fluctuation range, which is suitable for standardized production. In addition, the method is a pre-forming operation of forming a corresponding modified pattern of the substrate according to the predetermined shape of the flow channel and the liquid storage channel by laser technology, and then the modified pattern is formed by etching technology. Compared with the use of casting and then superposition technology or 3D printing technology, the preparation method is simple, low cost and can ensure the corresponding mechanical strength.

[0009] In some embodiments, the second laser preforming operation forms at least one layer of preformed reservoir channels inside the substrate by focusing laser light inside the substrate.

[0010] In some embodiments, the molding operation employs through glass via (TGV) technology.

[0011] In some embodiments, the first laser preforming operation employs a Bessel laser.

[0012] In some embodiments, the pattern of predetermined shapes includes circles, ellipses, or polygons.

[0013] In some embodiments, performing a molding operation on the preformed flow channel array includes: making each flow channel of at least a portion of the plurality of flow channels formed in the molding operation have a uniform radial dimension in the axial direction.

[0014] In some embodiments, performing a molding operation on the preformed channel array includes: making each channel of at least a portion of the plurality of channels formed in the molding operation have a radial dimension that gradually decreases from the first surface or the second surface toward the middle in the axial direction.

[0015] In some embodiments, performing a molding operation on the preformed flow channel array includes: gradually increasing the radial dimension of the flow channels formed in the molding operation from the first surface or the second surface toward the middle.

[0016] In some embodiments, the distance between the flow channels is in the range of 10 μm to 200 μm.

[0017] In some embodiments, the radial dimension of the flow channel ranges from 5 μm to 100 μm.

[0018] In some embodiments, performing a first laser preforming operation on the substrate includes: making an extension direction of at least a portion of the plurality of flow channels formed in the forming operation perpendicular to the first surface.

[0019] In some embodiments, performing a second laser preforming operation in the substrate includes: forming a layer of preformed liquid storage channels between the first surface and the second surface, wherein the preformed liquid storage channels are arranged in a middle portion between the first surface and the second surface.

[0020] In some embodiments, performing a second laser preforming operation in the substrate includes: forming a plurality of preformed liquid storage channels between the first surface and the second surface, wherein the plurality of preformed liquid storage channels are evenly spaced and distributed between the first surface and the second surface.

[0021] In some embodiments, a second laser preforming operation is performed in the substrate so that the liquid storage channel and the flow channel formed in the forming operation are arranged at a predetermined angle, and the predetermined angle is in the range of 30° to 90°.

[0022] In some embodiments, a second laser pre-forming operation is performed in the substrate such that the reservoir channel and the flow channel formed in the forming operation are perpendicular to each other.

[0023] In some embodiments, the substrate is subjected to a first laser preforming operation so that the radial area of ​​all flow channels formed in the forming operation accounts for 15% to 45% of the area of ​​the pattern of the predetermined shape.

[0024] In some embodiments, performing the first laser preforming operation and the second laser preforming operation on the substrate may include making the ratio of the radial dimension of the flow channel formed in the forming operation to the radial dimension of the liquid storage channel be 1:5 to 1:10.

[0025] According to a second aspect of the embodiment of the present disclosure, an atomizer core is provided. The atomizer core is prepared by the method of the first aspect.

[0026] According to a third aspect of an embodiment of the present disclosure, an atomization device is provided, comprising: a power supply; and an atomization core according to the second aspect above, wherein the atomization core is coupled to the power supply.

[0027] It should be understood that the content described in this content section is not intended to limit the key features or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0029] Figure 1 A schematic diagram showing a process of a method for preparing an atomizer core according to an embodiment of the present disclosure is shown;

[0030] Figure 2 A schematic structural diagram of a preformed flow channel array according to an embodiment of the present disclosure is shown;

[0031] Figure 3 A schematic structural diagram of a preformed liquid storage channel according to an embodiment of the present disclosure is shown;

[0032] Figure 4 A schematic structural diagram of a preformed liquid storage channel according to other embodiments of the present disclosure is shown;

[0033] Figure 5 A schematic cross-sectional structure diagram of an atomizer core according to an embodiment of the present disclosure is shown; and

[0034] Figure 6 A schematic cross-sectional structure diagram of an atomizer core according to other embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0037] The atomizer core is a key component in an electronic cigarette or atomizer device, responsible for heating the atomizer matrix and converting it into an inhalable aerosol. Under the suction action at the air outlet of the electronic cigarette or atomizer device, the airflow enters from the air inlet, passes through the atomizer cavity, and drives the aerosol atomized by the atomizer core to flow to the air outlet to form an aerosol that can be inhaled by the smoker.

[0038] The atomizer core usually includes a substrate and a heating element. The substrate is used to absorb the atomized matrix and provide it to the heating element, thereby heating and atomizing the atomized matrix. The substrate includes a liquid guide surface and an atomizing surface. The heating element is arranged on the substrate on one side of the atomizing surface or inside the substrate adjacent to the atomizing surface. The embodiments of the present disclosure are not limited to this. The method for preparing the atomizer core mentioned in this article mainly refers to the method for preparing the substrate. The atomizer core mentioned below mainly refers to the substrate mentioned here.

[0039] The pore structure of the atomizer core (i.e., its matrix) is crucial to the performance and user experience of an electronic cigarette or atomizer device. The pore structure refers to a series of tiny spaces formed inside the atomizer core that allow the atomized matrix to pass through and form aerosols during heating. The pore structure mainly affects the conduction, heating, and aerosol generation of the atomized matrix.

[0040] However, when designing and manufacturing the pore structure of the atomizer core, if errors occur in the process of preparing the atomizer core, the size and shape of the pore structure will be inconsistent. The size and distribution of the pore structure will affect the conduction rate and uniformity of the atomization matrix. If the size and distribution of the pore structure are not appropriate, it may cause uneven conduction of the atomization matrix inside the atomization core, which will affect the heating effect and cause unstable aerosol or poor taste.

[0041] During use, the pore structure of the atomizer core may become clogged or worn. This is because impurities or high-viscosity components in the atomizer matrix may cause the pore structure to become clogged. The clog will affect the conduction and heating effect of the atomizer matrix and reduce the performance of the atomizer core. If the clog is serious, the atomizer core needs to be replaced.

[0042] In order to improve the conduction and heating effect of the atomizing medium, a complex pore structure is usually used to improve the performance when designing and manufacturing the pore structure of the atomizing core. However, a complex pore structure may also increase the production cost and difficulty, so reducing the production cost is also an issue that designers need to consider.

[0043] The embodiments of the present disclosure provide an atomizer core, an atomizer device, and a method for preparing a glass-based atomizer core to solve or at least partially solve the above-mentioned problems or other potential problems existing in traditional atomizer cores. Figures 1 to 6 The principle of the present disclosure is described in detail. The atomizer core 100 described herein is used to atomize the atomization substrate to form an aerosol that can be inhaled by the user. The atomization substrate can be, for example, tobacco oil, liquid medicine, plant leaf liquid, etc., and the embodiments of the present disclosure are not limited to this. The atomizer core 100 can be specifically used in different fields, such as medical treatment, electronic aerosolization, etc.

[0044] First, refer to Figure 1 , Figure 1A schematic flow diagram of a method for preparing an atomizer core according to an embodiment of the present disclosure is shown. The method for preparing a glass-based atomizer core 100 described herein generally includes forming a preformed flow channel array and at least one layer of preformed liquid storage channels 120 on a substrate 101, and then performing a molding operation on the preformed flow channel array and at least one layer of preformed liquid storage channels 120 to form a plurality of flow channel arrays and at least one layer of liquid storage channels 1201, wherein at least one layer of liquid storage channels 1201 is connected between a plurality of flow channels 1101. In other words, the preparation method according to an embodiment of the present disclosure partially modifies the substrate 101 using a preformed flow channel array and at least one layer of preformed liquid storage channels 120, and then reprocesses the modified portion to form flow channels 1101 and liquid storage channels 1201. By using the method for preparing the atomizer core 100 according to the embodiment of the present disclosure, the porosity of the flow channel 1101 can be precisely controlled with a small fluctuation range, thereby improving the consistency of the size and shape of the flow channel 1101 and the liquid storage channel 1201, allowing the atomizer matrix to be uniformly conducted inside the atomizer core 100, and facilitating the stability of the subsequently generated aerosol, thereby improving the user experience.

[0045] The above-mentioned preparation method will be described in detail below. Figure 1 and Figure 2 , Figure 2 A schematic diagram of the structure of a preformed flow channel array according to an embodiment of the present disclosure is shown. In frame 210, a substrate 101 is provided. The substrate 101 may be made of a material such as glass having a certain thickness. For example, in some embodiments, the thickness of the substrate 101 may be in the range of 0.3 mm to 1 mm, for example, the thickness of the substrate 101 may be 0.5 mm. In some embodiments, the material of the substrate 101 may include quartz glass. In some alternative embodiments, the substrate 101 may also be made of high temperature resistant and thermal shock resistant glass such as borosilicate glass or aluminosilicate glass. In some alternative embodiments, the substrate 101 may also be made of any other appropriate single crystal / polycrystalline dense substrate suitable for hole making.

[0046] The substrate 101 includes a first surface 1011 and a second surface 1012 which are parallel to each other. The distance between the first surface 1011 and the second surface 1012 is the thickness of the substrate 101. The liquid guide surface and the atomization surface mentioned above are respectively located on the first surface 1011 and the second surface 1012 which are opposite to each other on the substrate 101. In other words, one of the first surface 1011 and the second surface 1012 of the substrate 101 can be a liquid guide surface, which is used to communicate with the atomization matrix cavity so as to allow the atomization matrix to enter the atomization core from the liquid guide surface; the other is an atomization surface, which is opposite to the liquid guide surface in the thickness direction, and is used to supply the atomization matrix to the heating element, thereby performing heating and atomization.

[0047] Next, at block 220, a first laser preforming operation is performed on the substrate 101 to form a preformed flow channel array, such as Figure 2 As shown. The preformed flow channel array includes a plurality of preformed flow channels 110 arranged in a pattern of a predetermined shape. The pattern of the predetermined shape may be presented on the first surface 1011 or the second surface 1012. The pattern of the predetermined shape of the preformed flow channel array may include a circular, elliptical or polygonal shape such as a triangle, a quadrilateral, a pentagon, etc., and the embodiments of the present disclosure are not limited to this. In some embodiments, the substrate 101 is modified by laser processing in the direction passing through the first surface 1011 and the second surface 1012 to form a preformed modified flow channel, which paves the way for subsequent reprocessing, that is, the subsequent reprocessing is only performed on the modified part, so that the reprocessing process is more convenient, and can be highly consistent with the original preset pattern, thereby improving the accuracy of the flow channel array position.

[0048] In some embodiments, the first laser preforming operation uses a Bessel laser. Bessel lasers have the advantages of anti-diffraction broadening, high energy focusing, and multi-mode operation. Using a Bessel laser to form a preformed flow channel 110 can improve the porosity of subsequent flow channels and the forming quality of the flow channels, thereby ultimately improving the quality of the atomizer core. Of course, in some alternative embodiments, the first laser preforming operation can also use a laser with the same processing effect as the Bessel laser to perform preforming processing of the flow channel 1101. The embodiments of the present disclosure are not limited to this. It can be understood that the processing effect of the Bessel laser used in the present disclosure is also better.

[0049] Next, in frame 230, a second laser preforming operation is performed in the substrate 101 to form at least one layer of preformed liquid storage channels 120 connecting multiple preformed flow channels 110 between the first surface 1011 and the second surface 1012, and at least one layer of preformed liquid storage channels 120 is parallel to the first surface 1011. At least one layer of preformed liquid storage channels 120 is arranged parallel to or at an angle between the first surface 1011 and the second surface 1012, and the substrate 101 is modified again by laser processing to form a preformed modified liquid storage channel, which is also a preparation for subsequent reprocessing. Subsequent reprocessing is only performed on the modified part, making the reprocessing process more convenient, and enabling the liquid storage channel 1201 to be accurately arranged at the original preset position, ensuring the determination of the liquid storage position.

[0050] In some embodiments, after the second laser preforming operation is performed on the substrate 101, at least one layer of preformed liquid storage channel 120 may include a layer of preformed liquid storage channel 120 formed between the first surface 1011 and the second surface 1012, and the preformed liquid storage channel 120 is arranged in the middle between the first surface 1011 and the second surface 1012. For example, Figure 3 A schematic diagram of a structure in which a layer of preformed liquid storage channels is provided in the middle between the first surface 1011 and the second surface 1012 according to an embodiment of the present disclosure. In some alternative embodiments, multiple layers of preformed liquid storage channels 120 may be formed between the first surface 1011 and the second surface 1012, and the multiple layers of preformed liquid storage channels 120 are evenly spaced and distributed between the first surface 1011 and the second surface 1012, that is, distributed in the upper part or the lower part of the flow channel 1101. For example, Figure 4 A schematic structural diagram of a two-layer preformed liquid storage channel between a first surface 1011 and a second surface 1012 according to another embodiment of the present disclosure is shown.

[0051] In some embodiments, the second laser preforming operation adopts laser stealth cutting technology. Laser stealth cutting is a technology that focuses laser on the inside of a material (i.e., substrate 101) to form a modified layer inside the material. Specifically, laser stealth cutting focuses a single pulse of a pulsed laser on the inside of substrate 101 through the surface of substrate 101 through optical forming. The energy density of the focused area is high, forming a multi-photon absorption nonlinear absorption effect, resulting in deformation and cracks inside substrate 101. The equidistant action of each laser pulse can form equidistant damage and form a metamorphic layer inside the material. The metamorphic layer is at least one layer of preformed liquid storage channel 120. In the metamorphic layer, the molecular bonding of the material is destroyed, the connection of the material is weakened, and it is easy to separate. Due to the modification of the internal quality of the workpiece, laser stealth cutting can suppress the generation of machining chips and is suitable for workpieces with poor anti-fouling performance. Laser stealth cutting is also suitable for workpieces with poor load resistance, and adopts a dry processing process without cleaning. More importantly, laser stealth cutting can also reduce the width of the cutting path, so it helps to improve the spacing of the liquid storage channel while improving the quality of the subsequently formed liquid storage channel. For example, as will be described in detail later, by using laser invisible cutting, two or more layers of liquid storage channels can be easily formed within the thickness range of the substrate 101, thereby facilitating improving the performance of the prepared atomizer core.

[0052] Next, at block 240, a molding operation is performed on the preformed flow channel array to form a flow channel array. The flow channel array includes a plurality of flow channels 1101 formed by the plurality of preformed flow channels 110 through the molding operation, and the plurality of flow channels 1101 extend from the first surface 1011 to the second surface 1012, such as Figure 5 and Figure 6 shown. Figure 5 A schematic cross-sectional structure diagram of a base body of an atomizer core after a molding operation according to an embodiment of the present disclosure is shown; Figure 6 A schematic cross-sectional structure diagram of a base body of an atomizer core after a molding operation according to another embodiment of the present disclosure is shown.

[0053] In some embodiments, the molding operation may use through glass via (TGV) technology. By forming a modified area in the substrate 101 in the previous step, the TGV technology can form flow channels and liquid storage channels faster and more accurately than unmodified areas. In some embodiments, the radial area of ​​all flow channels 1101 after the molding operation accounts for 15% to 45% of the area of ​​the pattern of the predetermined shape. For example, in some embodiments, the radial area of ​​all flow channels 1101 accounts for 15%, 20%, 30% or 35% of the area of ​​the pattern of the predetermined shape, etc. According to the preparation method of the embodiment of the present disclosure, compared with the use of post-casting superposition technology or the use of 3D printing technology, the preparation method is simple, low cost and can ensure the corresponding mechanical strength.

[0054] In some embodiments, performing a first laser preforming operation on the substrate 101 may include or may be configured so that the multiple flow channels 1101 formed in the subsequent forming operation can be arranged in parallel with each other, so that each flow channel 1101 conducts the atomized matrix from the first surface 1011 to the second surface 1012 in the same path. In some embodiments, after the preforming operation, the multiple flow channels 1101 after the forming operation can be arranged perpendicular to the first surface 1011 or the second surface 1012, so that the path between the flow channel 1101 and the second surface 1012 is shorter, thereby facilitating the transmission of the atomized matrix. In some alternative embodiments, the multiple flow channels 1101 can also be perpendicular to only one of the first surface 1011 and the second surface 1012, and be arranged at any appropriate angle within the range of 30° to 90° with the other, so as to allow the internal flow channel space layout of the atomizer core to be more reasonable.

[0055] For example, in some embodiments, performing a first laser pre-forming operation on the substrate 101 may include or be configured such that the plurality of flow channels 1101 formed in the forming operation are arranged at other angles to the first surface 1011 and / or the second surface 1012, and the angle between the two may also be arranged to be 30°, 45° or 60°, which is not limited in this regard by the embodiments of the present disclosure.

[0056] The forming operation of the preformed flow channel array may include, for example, adjusting the parameters such as the composition of the etching liquid in the forming operation, so that the radial dimensions of any flow channel 1101 in at least a portion of the multiple flow channels 1101 formed in the forming operation are equal at all locations in the axial direction. For example, in some embodiments, each of the multiple flow channels 1101 formed has equal dimensions in the axial direction. In some alternative embodiments, each of the flow channels in a portion of the multiple flow channels 1101 formed has equal dimensions in the axial direction, while the other portion of the flow channels may have inconsistent dimensions in the axial direction, such as gradually increasing or decreasing from the first surface 1011 or the second surface 1012 to the middle of the axial direction as will be mentioned later.

[0057] The opening of each flow channel 1101 on the first surface 1011 or the second surface 1012 may be circular, elliptical, or polygonal such as a triangle, a quadrilateral, a pentagon, etc., and the embodiments of the present disclosure are not limited thereto. Further, the shapes and radial dimensions of each of the plurality of flow channels 1101 formed in the molding operation are made consistent, so that the amount of atomized substrate conducted to the second surface 1012 by each flow channel 1101 is equal, and the liquid is conducted evenly.

[0058] In some embodiments, performing a molding operation on the preformed flow channel array may include making the flow channels 1101 formed in the molding operation inside the substrate 102 have different sizes in the cross section in the axial direction. Specifically, in some embodiments, the radial size of the flow channel 1101 gradually increases from both ends (i.e., the first surface 1011 and the second surface 1012) to the middle direction, the flow channel 1101 may have a smooth transition, and the opening of the flow channel 1101 on the first surface 1011 or the second surface 1012 may be circular, elliptical, or polygonal such as a triangle, a quadrilateral, a pentagon, etc.

[0059] In some embodiments, the molding operation for the preformed flow channel array may be configured so that the radial dimension of the flow channel 1101 formed in the subsequent molding operation may also change in other forms. For example, in some alternative embodiments, the radial dimension of the flow channel 1101 gradually increases in a step-like manner from both ends (i.e., the first surface 1011 and the second surface 1012) toward the middle. In some alternative embodiments, the molding operation for the preformed flow channel array may include or be configured so that the radial dimension of the flow channel 1101 formed in the molding operation has a radial dimension that gradually decreases in the axial direction from the first surface 1011 or the second surface 1012 toward the middle, such as Figure 5 and Figure 6 shown.

[0060] In some embodiments, the radial dimension of the flow channel 1101 formed by the final molding operation may range from 5 μm to 100 μm. For example, the radial dimension of the flow channel 1101 may be any appropriate dimension such as 10 μm, 30 μm, 50 μm, 70 μm or 90 μm, and the embodiments of the present disclosure are not limited to this. In addition, it should be understood that when the radial cross-sectional shape of the flow channel is circular, the above radial dimension is the diameter of the circular shape. When the radial cross-sectional shape of the flow channel is a shape other than a circle, the above radial dimension may refer to the diameter of a circular shape having an equivalent cross-sectional area to the shape.

[0061] In some embodiments, the distance between the flow channels 1101 formed after the final molding operation is also one of the important indicators that affect the atomization effect. The distance between the flow channels 1101 in the present disclosure can be set to 10μm to 200μm. For example, the distance between the flow channels 1101 can be any appropriate value such as 13μm, 50μm, 80μm, 100μm, 150μm or 180μm, and the embodiments of the present disclosure are not limited to this. In some embodiments, the distance between the flow channels 1101 formed after the final molding operation can also be set to be unequal. For example, the distance between the flow channels in the middle area of ​​the multiple flow channels 1101 can be set to be smaller, and as the middle area continues to extend radially outward, the distance between the flow channel paper pieces in these areas can be set to be larger.

[0062] In frame 240, a molding operation is performed on at least one layer of preformed liquid storage channel 120 so that at least one layer of preformed liquid storage channel 120 forms at least one layer of liquid storage channel 1201, and at least one layer of liquid storage channel 1201 is connected to at least some of the multiple flow channels 1101. In some embodiments, the two molding operations of forming the liquid storage channel 120 and forming the flow channel in the above frame 240 can be completed simultaneously. The liquid storage channel 1201 after the molding operation interconnects the multiple flow channels 1101, so that the atomized matrix entering the atomization core through the flow channel 1101 can be temporarily stored in the liquid storage channel 1202, thereby improving the atomization effect of the atomized matrix in the atomization core 100. At the same time, even when a small number of flow channels 1101 inlets are blocked, the flow channels 1101 can supplement the atomized matrix with each other to thereby ensure the atomization effect. The number of liquid storage channels 1201 determines the liquid storage capacity of the substrate 102 , and thus the number of liquid storage channels 1202 can be reasonably set according to factors such as the required atomization effect and the setting method of the heating body.

[0063] This processing stage is to perform a molding operation on the preformed part so that the flow channel array forms a pore structure. As mentioned above, the flow channel 1101 formed after the final molding operation is a channel that runs through the first surface 1011 and the second surface 1012, and the liquid storage channel 1201 is a channel connecting multiple flow channels 1101. The interior of all the channels finally formed by the method according to the embodiment of the present disclosure is smooth and fluent, which is more conducive to the flow of the atomized matrix in the flow channel 1101, and effectively avoids the risk of blocking the channel. At the same time, the liquid storage channel 1201 also plays the role of storing liquid. Even if individual flow channels 1101 are blocked, the liquid storage channel 1201 will also make the flow channels 1101 complement each other with atomized matrices, thereby improving the atomization effect of the atomization core and the user's experience. In some embodiments, performing a second laser preforming operation on the substrate 101 may include forming one or more preformed liquid storage channels 120 arranged in the middle of the first surface 1011 and the second surface 1012 between the first surface 1011 and the second surface 1012. In this way, after the molding operation, one or more layers of preformed liquid storage channels 120 respectively form one or more layers of liquid storage channels 1201. The flow channels 1101 are interconnected through the liquid storage channels 1201, so that the liquid level of the atomized matrix in each flow channel 1101 in the substrate 102 remains consistent, ensuring uniform liquid supply to the second surface 1012 and good atomization effect. At the same time, the liquid storage channel 1201 provides more storage space for the atomized matrix, thereby enhancing the oil storage function of the substrate 102, thereby improving the stability of atomization.

[0064] The radial dimensions of each liquid storage channel 1201 may be equal at various locations, wherein the radial cross-sectional shape of the liquid storage channel 1201 may include, but is not limited to, a circle, an ellipse, a polygon such as a triangle, a quadrilateral, a pentagon, etc. Further, when the liquid storage channel 1201 is provided with at least two layers, the shape and radial dimensions of each liquid storage channel 1201 may be set to be consistent, so that the liquid storage capacity of each liquid storage channel 1201 is the same.

[0065] For each layer of liquid storage channels in the liquid storage channel 1201 formed by the molding operation, a plurality of liquid storage channels extending in different directions may be included. For example, some liquid storage channels extend along a first direction (e.g., the X-axis), while some liquid storage channels extend along a second direction (e.g., the Y-axis) perpendicular to the first direction, and the liquid storage channels extending along the first direction and the liquid storage channels extending along the second direction intersect at the flow channel 1101. In this way, the circulation and storage of the atomized matrix in the atomizing core can be further facilitated. Of course, it should be understood that the angle between the first direction and the second direction may also be set to any appropriate value within the range of 30° to 90°.

[0066] In some embodiments, performing a second laser preforming operation on the substrate 101 may also include or be configured so that each liquid storage channel 1201 in at least one layer of liquid storage channels 1201 formed in a subsequent forming operation is vertically arranged to the flow channel 1101. Specifically, the liquid storage channel 1201 is arranged parallel to the first surface 1011 and the second surface 1012, and is arranged vertically to the flow channel 1101. In this way, the liquid storage capacity can be improved. In some embodiments, after performing a second laser preforming operation on the substrate 101, the liquid storage channel 1201 formed in the forming operation can be arranged at other angles to the flow channel 1101. For example, the predetermined angle at which the flow channel 1101 and the liquid storage channel 1201 are arranged can be set between 30° and 90°, for example, 60°, and the embodiments of the present disclosure are not limited to this.

[0067] In some embodiments, the shape and radial dimensions of the liquid storage channels 1201 in different layers on the same substrate 102 after the molding operation may be the same as or different from the shape and radial dimensions of the flow channel 1101 , and the embodiments of the present disclosure are not limited to this.

[0068] In some embodiments, performing the first laser preforming operation and the second laser preforming operation on the substrate 101 may further include or be configured such that the ratio of the radial dimension of the flow channel 1101 formed in the forming operation to the radial dimension of the liquid storage channel 1201 is 1:5 to 1:10. For example, the ratio of the radial dimension of the flow channel 1101 to the radial dimension of the liquid storage channel 1201 may be arranged to be any appropriate ratio such as 1:6 or 1:8.

[0069] In some embodiments, performing a second laser preforming operation on the substrate 101 may further include: making at least one of the liquid storage channels formed in the subsequent forming operation an extended channel. This requires that when performing the second laser preforming operation, the modified region of the substrate 101 is extended outward, so that the extended channel formed in the subsequent forming operation is connected to all the flow channels 1101 and a portion extends to the outside of the flow channel region to provide more liquid storage space.

[0070] In some embodiments, the extended channel and other liquid storage channels can be arranged in a similar manner. For example, the extended channel can also be arranged perpendicular to the flow channel 1101. The extended channel can also be arranged parallel to the first surface 1011 and the second surface 1012, and perpendicular to the flow channel 1101, so as to further improve the liquid storage capacity. In some other embodiments, the extended channel formed in the molding operation can be arranged at other angles with the flow channel 1101, for example, the angle between the two can also be arranged at any appropriate angle such as 30°, 45° or 60°.

[0071] The embodiment of the present disclosure provides an atomizer core 100 using the above-mentioned method for preparing a glass-based atomizer core. The atomizer core 100 includes: a substrate 102 prepared using the above method and a heating element. The heating element can be arranged on the second surface 1012 of the substrate 102 or any other appropriate position to heat the atomizing matrix transferred to the second surface 1012 to atomize it.

[0072] In some embodiments, the heating element may cover the opening of the flow channel 1101 on the second surface 1012, so as to fully atomize the atomized substrate transferred to the second surface 1012. It can be understood that due to the action of capillary force, the atomized substrate is absorbed by the first surface 1011, and moves upward or downward through the flow channel 1101 and is transferred to the second surface 1012, so that the heating element heats and atomizes the atomized substrate.

[0073] The embodiment of the present disclosure also provides an atomization device, which includes: a power supply and an atomization core 100, and the atomization core 100 is coupled to the power supply. The preparation method of the atomization core 100 has been described in detail above and will not be elaborated here. The power supply includes a battery; the battery is used to power the atomization device so that the atomization core 100 can atomize the atomization matrix transferred to the second surface 1012 to form an aerosol. The atomization core 100 and the power supply can be integrally arranged or detachably connected, and the embodiment of the present disclosure does not limit this.

[0074] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A method for preparing an atomizer core, characterized in that: include: Providing a substrate (101), wherein the substrate (101) comprises a first surface (1011) and a second surface (1012) that are parallel to each other; Performing a first laser preforming operation on the substrate (101) to form a preformed flow channel array, wherein the preformed flow channel array includes a plurality of preformed flow channels (110) arranged in a pattern of a predetermined shape; Performing a second laser preforming operation in the substrate (101) to form at least one layer of preformed liquid storage channels (120) between the first surface (1011) and the second surface (1012) that communicate with the plurality of preformed flow channels (110); Performing a molding operation on the preformed flow channel array to form a flow channel array, the flow channel array comprising a plurality of flow channels (1101) formed by the plurality of preformed flow channels (110) through the molding operation, the plurality of flow channels (1101) extending from the first surface (1011) to the second surface (1012); and The at least one layer of preformed liquid storage channels (120) is subjected to a molding operation so that the at least one layer of preformed liquid storage channels (120) forms at least one layer of liquid storage channels (1201), and the at least one layer of liquid storage channels (1201) is connected to at least some of the multiple flow channels (1101).

2. The preparation method according to claim 1, characterized in that: The second laser preforming operation forms the at least one layer of preformed liquid storage channels (120) inside the substrate (101) by focusing laser light inside the substrate (101).

3. The preparation method according to claim 1, characterized in that: The molding operation employs through glass via (TGV) technology.

4. The preparation method according to claim 1, characterized in that: The first laser preforming operation uses a Bessel laser.

5. The preparation method according to any one of claims 1 to 4, characterized in that: The predetermined shape of the pattern includes a circle, an ellipse or a polygon.

6. The preparation method according to any one of claims 1 to 4, characterized in that: Performing a molding operation on the preformed flow channel array includes: making each flow channel (1101) of at least a portion of the flow channels (1101) formed in the molding operation have a consistent radial dimension in the axial direction.

7. The preparation method according to any one of claims 1 to 4, characterized in that: Performing a molding operation on the preformed flow channel array includes: making each flow channel (1101) of at least a portion of the flow channels (1101) formed in the molding operation have a radial dimension that gradually decreases from the first surface (1011) or the second surface (1012) toward the middle in the axial direction.

8. The preparation method according to any one of claims 1 to 4, characterized in that: Performing a molding operation on the preformed flow channel array includes: gradually increasing the radial dimension of the flow channel (1101) formed in the molding operation from the first surface (1011) or the second surface (1012) toward the middle.

9. The preparation method according to any one of claims 1 to 4, characterized in that: The distance between the flow channels (1101) is in the range of 10 μm to 200 μm.

10. The preparation method according to any one of claims 1 to 4, characterized in that: The radial dimension of the flow channel (1101) ranges from 5 μm to 100 μm.

11. The preparation method according to any one of claims 1 to 4, characterized in that: Performing a first laser preforming operation on the substrate (101) comprises: The extension direction of at least a portion of the plurality of flow channels (1101) formed in the molding operation is perpendicular to the first surface (1011).

12. The preparation method according to any one of claims 1 to 4, characterized in that: Performing a second laser preforming operation in the substrate (101) comprises: A layer of preformed liquid storage channel (120) is formed between the first surface (1011) and the second surface (1012), and the preformed liquid storage channel (120) is arranged in the middle between the first surface (1011) and the second surface (1012).

13. The preparation method according to any one of claims 1 to 4, characterized in that: Performing a second laser preforming operation in the substrate (101) comprises: A plurality of preformed liquid storage channels (120) are formed between the first surface (1011) and the second surface (1012), and the plurality of preformed liquid storage channels (120) are evenly distributed between the first surface (1011) and the second surface (1012).

14. The preparation method according to any one of claims 1 to 4, characterized in that: A second laser preforming operation is performed in the substrate (101) so that the liquid storage channel (1201) and the flow channel (1101) formed in the forming operation are arranged at a predetermined angle, and the predetermined angle is in the range of 30° to 90°.

15. The preparation method according to any one of claims 1 to 4, characterized in that: A second laser preforming operation is performed in the substrate (101) so that the liquid storage channel (1201) and the flow channel (1101) formed in the forming operation are perpendicular to each other.

16. The preparation method according to any one of claims 1 to 4, characterized in that: A first laser preforming operation is performed on the substrate (101) so that the radial area of ​​all the flow channels (1101) formed in the forming operation accounts for 15% to 45% of the area of ​​the pattern of the predetermined shape.

17. The preparation method according to any one of claims 1 to 4, characterized in that: Performing a first laser preforming operation and a second laser preforming operation on the substrate (101) includes: making the ratio of the radial dimension of the flow channel (1101) formed in the forming operation to the radial dimension of the liquid storage channel (1201) be 1:5 to 1:

10.

18. An atomizer core prepared by the method according to any one of claims 1 to 17.

19. An atomizing device, characterized in that: include: power supply; as well as The atomizer core according to claim 18, wherein the atomizer core is coupled to the power source.

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