WO2025026241A1

WO2025026241A1 - Atomizing core, atomizing device and preparing method of atomizing core

Info

Publication number: WO2025026241A1
Application number: PCT/CN2024/107995
Authority: WO
Inventors: Liheng TANG; Zhijun Jiang; Xiaofeng Peng
Original assignee: Shanghai QV Technologies Co Ltd
Current assignee: Shanghai QV Technologies Co Ltd
Priority date: 2023-07-28
Filing date: 2024-07-26
Publication date: 2025-02-06
Anticipated expiration: 2026-01-28
Also published as: CN119453587A

Abstract

Embodiments of the disclosure provide an atomizing core, atomizing device and a preparing method of the atomizing core. The preparing method comprises the following steps: providing a substrate (210); performing a first laser pre-shaped operation on the substrate to form a pre-shaped flow channel array (220); performing a second laser pre-shaped operation within the substrate to form at least one layer of pre-shaped liquid storage channels between the first surface and the second surface (230); performing a shaping operation on the pre-shaped flow channel array to form a flow channel array, the flow channel array comprising a plurality of flow channels, the plurality of flow channels penetrating from the first surface to the second surface (240); and performing a shaping operation on the at least one layer of pre-shaped liquid storage channels, to cause the at least one layer of pre-shaped liquid storage channels to form at least one layer of liquid storage channels, and the at least one layer of liquid storage channels communicating with at least a portion of the plurality of flow channels (240). The atomizing core prepared by the above preparing method may ensure the uniformity of oil supply to the heating body and enhance the oil storage function of the atomizing core, so that the atomization stability is improved.

Description

ATOMIZING CORE, ATOMIZING DEVICE AND PREPARING METHOD OF ATOMIZING CORE

CROSS REFERENCE

This application claims the priority to Chinese Patent Application No. 202310949337.6 filed on July 28, 2023, and entitled “Atomizing Core, Atomizing Device and Preparing Method of Atomizing Core” , which is hereby incorporated by reference in its entirety.

Field

Example embodiments of the present disclosure generally relate to the technical field of atomization, and in particular, to an atomizing core, an atomizing device, and a preparing method of the atomizing core.

BACKGROUND

When the conventional atomizing device is powered, the atomizing core therein may heat and atomize the liquid atomization matrix to generate aerosol for suction. As a core element of the atomizing device, the atomizing core determines the atomization effect and user experience of the atomizing device.

The manufacturing process of the atomizing core determines the structure and performance of the atomizing core. The atomizing core manufactured by a conventional manufacturing process has an uneven oil supply to the heating body and a weak liquid storage function, which affects the user's suction experience.

With technological advancements, users have higher and higher requirements on the atomization effect of atomizing device. To meet the requirements of users, it is necessary to provide an atomizing core with a better atomization effect, which also imposes higher requirements on the preparation process and method of the atomizing core.

SUMMARY

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

In a first aspect of the present disclosure, a preparing method for a glass-based atomizing core is provided. The preparing method comprises the following steps: providing a substrate, the substrate comprising a first surface and a second surface parallel to each other; performing a first laser pre-shaped operation on the substrate to form a pre-shaped flow channel array, the pre-shaped flow channel array comprising a plurality of pre-shaped flow channels arranged in a pattern of a predetermined shape; performing a second laser pre-shaped operation within the substrate to form at least one layer of pre-shaped liquid storage channels communicating the plurality of pre-shaped flow channels between the first surface and the second surface; performing a shaping operation on the pre-shaped flow channel array to form a flow channel array, the flow channel array comprising a plurality of flow channels formed by the plurality of pre-shaped flow channels through the shaping operation, the plurality of flow channels penetrating from the first surface to the second surface; and performing a shaping operation on the at least one layer of pre-shaped liquid storage channels, to cause the at least one layer of pre-shaped liquid storage channels to form at least one layer of liquid storage channels, and the at least one layer of liquid storage channels communicating with at least a portion of the plurality of flow channels.

According to the embodiment of the present disclosure, the plurality of flow channels are communicated with each other through the liquid storage channels, so that the fluid level height of the atomization matrix in the flow channels is consistent, the fluidity of the atomization matrix in the atomizing core is improved, and when a small number of flow channel inlets are blocked, the flow channels may supplement the atomization matrix to each other to ensure the atomization effect; meanwhile, the liquid storage channel provides more storage space for the atomization matrix, so that the oil storage function of the atomizing core is enhanced, and the atomization stability is further improved.

Through the preparing method, in the production process of the atomizing core, the porosity of the flow channel may be accurately controlled, the fluctuation range is small, and the atomizing core is suitable for standardized production. In addition, the method is a pre-shaped operation of forming a corresponding modified pattern on the substrate according to the patterns of the predetermined shapes of the flow channel and the liquid storage channel through laser technology, and then performing a shaping operation on the modified pattern through an etching technology, so that the preparing method is simple, low in cost and capable of ensuring corresponding mechanical strength compared with the use of a post-casting superposition technology or a 3D printing technology.

In some embodiments, the second laser pre-shaped operation forms the at least one layer of pre-shaped liquid storage channels inside the substrate by focusing a laser inside the substrate.

In some embodiments, the shaping operation employs Through-Glass Via (TGV) technology.

In some embodiments, the first laser pre-shaped operation employs Bessel laser.

In some embodiments, the pattern of a predetermined shape comprises a circular, an elliptical, or a polygonal shape.

In some embodiments, performing a shaping operation on the pre-shaped flow channel array comprises: causing each of at least a portion of flow channels of the plurality of flow channels formed in the shaping operation to have a consistent radial dimension in an axial direction.

In some embodiments, performing a shaping operation on the pre-shaped flow channel array comprises: causing each of at least a portion of flow channels of the plurality of flow channels formed in the shaping operation to have a radial dimension that gradually decreases in an axial direction from the first surface or the second surface toward a middle part.

In some embodiments, performing a shaping operation on the pre-shaped channel array comprises: causing a radial dimension of the flow channel formed in the shaping operation to gradually increase in a direction from the first surface or the second surface towards a middle part.

In some embodiments, a distance between the flow channels is within a range of 10 μm to 200 μm.

In some embodiments, a radial dimension of the flow channels ranges from 5 μm to 100 μm.

In some embodiments, performing a first laser pre-shaped operation on the substrate comprises: causing an extension direction of at least a portion of the plurality of flow channels formed in the shaping operation perpendicular to the first surface.

In some embodiments, performing a second laser pre-shaped operation within the substrate comprises: forming one layer of pre-shaped liquid storage channel between the first surface and the second surface, and the pre-shaped liquid storage channel being arranged in a middle part between the first surface and the second surface.

In some embodiments, performing a second laser pre-shaped operation within the substrate comprises: forming a plurality of layers of pre-shaped liquid storage channels between the first surface and the second surface, and the plurality of layers of pre-shaped liquid storage channels being evenly distributed between the first surface and the second surface.

In some embodiments, performing a second laser pre-shaped operation within the substrate to cause the liquid storage channel and the flow channel formed in the shaping operation to be at a predetermined angle, and the predetermined angle being within a range of 30 ° to 90 °.

In some embodiments, performing a second laser pre-shaped operation within the substrate to cause the liquid storage channel and the flow channel formed in the shaping operation to be perpendicular to each other.

In some embodiments, performing a first laser pre-shaped operation on the substrate to cause a radial area of all the flow channels formed in the shaping operation to occupy 15%to 45%of an area of the pattern of a predetermined shape.

In some embodiments, performing a first laser pre-shaped operation and a second laser pre-shaped operation on the substrate comprises: causing a ratio of a radial dimension of the flow channel to a radial dimension of the liquid storage channel formed in the shaping operation to be 1: 5 to 1: 10.

According to a second aspect of embodiments of the present disclosure, an atomizing core is provided. The atomizing core is prepared by using the method according to the first aspect.

According to a third aspect of embodiments of the present disclosure, an atomizing device is provided, the atomizing device comprises: a power supply; and the atomizing core according to the second aspect described above, wherein the atomizing core is coupled to the power supply.

It should be understood that content described in this content section is not intended to limit key features or important features of embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will be readily understood from the following description.

BRIEF DESCRIPTION OF DRAWINGS

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

FIG. 1 illustrates a schematic flowchart of a preparing method of an atomizing core according to an embodiment of the present disclosure;

FIG. 2 illustrates a schematic structural diagram of a pre-shaped flow channel array according to an embodiment of the present disclosure;

FIG. 3 illustrates a schematic structural diagram of a pre-shaped liquid storage channel according to an embodiment of the present disclosure;

FIG. 4 illustrates a schematic structural diagram of a pre-shaped liquid storage channel according to other embodiments of the present disclosure;

FIG. 5 illustrates a schematic cross-sectional structural diagram of an atomizing core according to an embodiment of the present disclosure; and

FIG. 6 illustrates a schematic cross-sectional structural diagram of an atomizing core according to other embodiments of the present disclosure.

DETAILED DESCRIPTION

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

As used herein, the term “comprising” and variations thereof means open inclusive, i.e., “including but not limited to” . Unless specifically stated, the term “or” means “and /or” . The term “based on” means “based at least in part on” . The terms “one example embodiment” and “one embodiment” mean “at least one example embodiment” . The term “another embodiment” means “at least one further embodiment” . The terms “first, ” “second, ” and the like may refer to different or identical objects.

The atomizing core is a key component in an electronic cigarette or an atomizing device, and is responsible for heating and converting an atomization matrix into an inhalable aerosol. Under the suction action of the air outlet of the electronic cigarette or the atomizing device, airflow enters from the air inlet and passes through the atomization cavity to drive aerosol atomized by the atomizing core to flow to the air outlet to form inhalable aerosol.

The atomizing core generally includes a base body and a heat generating body. The base body is used for sucking the atomization matrix and providing the atomization matrix to the heating body, so that the atomization matrix is heated and atomized. The base body includes a liquid guide surface and an atomizing surface, and the heating body is arranged on the base body on one side of the atomizing surface or inside the base body adjacent to one side of the atomizing surface, which is not limited in embodiments of the present disclosure. The preparing method for an atomizing core mentioned herein mainly refers to a preparing method for a base body. Reference hereinafter to the atomizing core mainly refers to the base body mentioned herein.

The pore structure of the atomizing core (i.e., its base body) is critical to the performance and use experience of the electronic cigarette or atomizing device, and the pore structure refers to a series of tiny spaces formed inside the atomizing core, which allow the atomization matrix to pass through and form an aerosol during heating. The pore structure primarily affects the conduction, heating, and aerosol generation of the atomization matrix.

However, when designing and manufacturing the pore structure of the atomizing core, if an error occurs in the process of preparing the atomizing core, the size and shape of the pore structure may be inconsistent, and the size and distribution of the pore structure may affect the conduction rate and uniformity of the atomization matrix; if the size and distribution of the pore structure are inappropriate, it may cause the atomization matrix to conduct unevenness inside the atomizing core, which may affect the heating effect, resulting in unstable aerosol or poor taste.

During use, the pore structure of the atomizing core may become clogged or worn because impurities or high viscosity components in the atomizing matrix may cause the pore structure to clog. The blockage may affect the conduction and heating effects of the atomization matrix, reduce the performance of the atomizing core, and if the blockage is serious, the atomizing core needs to be replaced.

In order to improve the conduction and heating effects of the atomizing medium therein, complex pore structures are often used to improve performance when designing and manufacturing the pore structure of the atomizing core. However, complex pore structures may also increase production costs and difficulty, thereby reducing production costs is also a problem that designers need to consider.

Embodiments of the present disclosure provide an atomizing core, an atomizing device, and a preparing method of a glass-based atomizing core, to solve or at least partially solve the above problems or other potential problems existing in conventional atomizing cores. The principles of the present disclosure will be described in detail below with reference to FIGS. 1 to 6. The atomizing core 100 described herein is used to atomize an atomization matrix to form an aerosol for user suction. The atomization matrix may be, for example, tobacco tar, liquid medicine, plant grass leaf liquid, etc., which is not limited in embodiments of the present disclosure. The atomizing core 100 may be specifically used in different fields, such as medical treatment and electronic aerosolization.

First, referring to FIG. 1, FIG. 1 illustrates a schematic flowchart of a preparing method of an atomizing core according to an embodiment of the present disclosure. The preparing method of the glass-based atomizing core 100 described herein generally includes forming a pre-shaped flow channel array and at least one layer of pre-shaped liquid storage channel 120 on a substrate 101, and then performing a shaping operation on the pre-shaped flow channel array and the at least one layer of pre-shaped liquid storage channel 120 to form a plurality of flow channel arrays and at least one layer of liquid storage channel 1201, and the at least one layer of liquid storage channel 1201 is communicated between the plurality of flow channels 1101. In other words, according to the preparing method of the embodiment of the present disclosure, the substrate 101 is partially modified by using the pre-shaped flow channel array and the at least one layer pre-shaped liquid storage channel 120, and then the modified portion is reprocessed to form the flow channel 1101 and the liquid storage channel 1201. Through the preparing method for the atomizing core 100 according to the embodiment of the present disclosure, the porosity of the flow channel 1101 may be accurately controlled, and the fluctuation range is small, thereby improving the consistency of the sizes and shapes of the flow channel 1101 and the liquid storage channel 1201, so that the atomization matrix is uniformly conducted inside the atomizing core 100, and the subsequent aerosol generated is stable, thereby improving the user experience.

The above preparing method will be described in detail below. First, referring to FIG. 1 and FIG. 2, FIG. 2 illustrates a schematic structural diagram of a pre-shaped flow channel array according to an embodiment of the present disclosure. At block 210, a substrate 101 is provided. The substrate 101 may be made of a material such as glass with a certain thickness. For example, in some embodiments, the thickness of the substrate 101 may range from 0.3 mm to 1mm, 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 aluminum silicate glass. In some alternative embodiments, the substrate 101 may also be any other suitable single crystal /polycrystalline dense substrate suitable for forming pores.

The substrate 101 includes a first surface 1011 and a second surface 1012 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 atomizing surface mentioned above are respectively located on the first surface 1011 and the second surface 1012 opposite to the substrate 101. That is to say, one of the first surface 1011 and the second surface 1012 of the substrate 101 may be a liquid guide surface for communicating with the atomization matrix cavity to allow the atomization matrix to enter the atomizing core from the liquid guide surface; the other is an atomizing surface opposite to the liquid guide surface in the thickness direction for supplying the atomization matrix to the heating body for heating and atomization.

Next, at block 220, a first laser pre-shaped operation is performed on the substrate 101 to form a pre-shaped flow channel array, as shown in FIG. 2. The pre-shaped flow channel array includes a plurality of pre-shaped 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 pre-shaped flow channel array may include a circle, an ellipse, a polygon such as a triangle, a quadrilateral, a pentagon, or the like, which is not limited in embodiments of the present disclosure. In some embodiments, in a direction penetrating through the first surface 1011 and the second surface 1012, the substrate 101 is modified by laser processing to form a pre-shaped modified flow channel for subsequent reprocessing, that is, the subsequent reprocessing only reprocesses the modified portion, so that the reprocessing process is more convenient and consistent with the original preset pattern height, and the accuracy of the flow channel array position is improved.

In some embodiments, the first laser pre-shaped operation employs a Bessel laser. Bessel lasers have the advantages of being resistant to diffraction broadening, high energy focusing, and multi-mode operation. Forming the pre-shaped flow channel 110 by Bessel laser may improve the porosity of the subsequent flow channel and the shape quality of the flow channel, thereby finally improving the quality of the atomizing core. Of course, in some alternative embodiments, the first laser pre-shaped operation may also use a laser with the same processing effect as the Bessel laser to perform the pre-shaped processing of the flow channel 1101, which is not limited in embodiments of the present disclosure, and it may be understood that the Bessel laser used in the present disclosure also has a better processing effect.

Next, at block 230, a second laser pre-shaped operation is performed within the substrate 101 to form at least one layer of pre-shaped liquid storage channel 120 communicating the plurality of pre-shaped flow channels 110 between the first surface 1011 and the second surface 1012, the at least one layer of pre-shaped liquid storage channel 120 being parallel to the first surface 1011. At least one layer of pre-shaped liquid storage channel 120 is arranged between the first surface 1011 and the second surface 1012 in parallel or at an angle, and the substrate 101 is modified again by laser processing to form a pre-shaped modified liquid storage channel, which is also laid for subsequent reprocessing. Subsequent reprocessing only reprocesses the modified part, so that the reprocessing process is more convenient, and the liquid storage channel 1201 may be accurately arranged at the original preset position, thereby ensuring determination of the liquid storage position.

In some embodiments, after the second laser pre-shaped operation is performed on the substrate 101, the at least one layer of pre-shaped liquid storage channel 120 may include forming a layer of pre-shaped liquid storage channel 120 between the first surface 1011 and the second surface 1012, and the pre-shaped liquid storage channel 120 is arranged in a middle part between the first surface 1011 and the second surface 1012. For example, FIG. 3 illustrates a schematic structural diagram of a layer of pre-shaped liquid storage channel in the middle part between the first surface 1011 and the second surface 1012 according to an embodiment of the present disclosure. In some alternative embodiments, a plurality of layers of pre-shaped liquid storage channels 120 may be formed between the first surface 1011 and the second surface 1012, and the plurality of layers of pre-shaped liquid storage channels 120 are evenly distributed between the first surface 1011 and the second surface 1012, that is, distributed at an upper portion or a lower portion of the flow channel 1101. For example, FIG. 4 illustrates a schematic structural diagram with two layers of pre-shaped liquid storage channels between the first surface 1011 and the second surface 1012 according to another embodiment of the present disclosure.

In some embodiments, the second laser pre-shaped operation employs a laser stealth cutting technique. Laser stealth dicing is a technique that focuses laser light inside a material (i.e., substrate 101) , forming a modified layer inside the material. Specifically, the laser stealth cutting optically forms a single pulse of the pulsed laser, and focuses on the inside of the substrate 101 through the surface of the substrate 101, so that the energy density of the focusing area is high, and a multi-photon absorption nonlinear absorption effect is formed, resulting in cracks in deformation inside the substrate 101. Each laser pulse acts equidistant to form equidistant damage and form a metamorphic layer inside the material. The modified layer is at least one layer pre-shaped liquid storage channel 120. In the metamorphic layer, the molecular binding of the material is destroyed, and the connection of the material is weakened and easy to separate. Due to internal modification of the workpiece, laser stealth cutting may inhibit generation of machining chips and is suitable for workpieces with poor dirt resistance. Laser invisible cutting is also suitable for workpieces with poor load resistance, and a dry machining process is adopted without cleaning. More importantly, laser stealth cutting may also reduce the width of the cutting channel, thereby helping to improve the spacing of the liquid storage channels while improving the quality of the liquid storage channels formed subsequently. For example, as will be described in detail later, two or even more layers of liquid storage channels may be easily formed within the thickness range of the substrate 101 by laser stealth cutting, thereby facilitating improving the performance of the prepared atomizing core.

Next, at block 240, a shaping operation is performed on the pre-shaped flow channel array to form the flow channel array. The flow channel array includes a plurality of flow channels 1101 formed by a plurality of pre-shaped flow channels 110 through a shaping operation, and the plurality of flow channels 1101 penetrate from the first surface 1011 to the second surface 1012, as shown in FIGS. 5 and 6. FIG. 5 illustrates a schematic cross-sectional structural diagram of a base body of an atomizing core after a shaping operation according to an embodiment of the present disclosure; FIG. 6 illustrates a schematic cross-sectional structural diagram of a base body of an atomizing core after a shaping operation according to another embodiment of the present disclosure.

In some embodiments, the shaping operation may employs Through-Glass Via (TGV) technology. By forming the modified regions in the substrate 101 in the previous steps, the TGV technology is able to form the flow channels and the liquid storage channels faster and more accurately than the unmodified regions. In some embodiments, the radial area of all the flow channels 1101 after the shaping operation occupies the area of the pattern of the predetermined shape in a range of 15%to 45%. For example, in some embodiments, the radial area of all the flow channels 1101 may occupy the area of the pattern of the predetermined shape, such as 15%, 20%, 30%or 35%. According to the preparing method of the embodiment of the present disclosure, compared with the use of the post-casting superposition technology or the use of the 3D printing technology, the preparing method is simple, low in cost and capable of ensuring corresponding mechanical strength.

In some embodiments, performing the first laser pre-shaped operation on the substrate 101 may include or may be configured such that the plurality of flow channels 1101 formed in the subsequent shaping operation may be arranged in parallel with each other, so that the paths for each flow channel 1101 to conduct the atomization matrix from the first surface 1011 to the second surface 1012 are the same. In some embodiments, after the pre-shaped operation, the plurality of flow channels 1101 after the shaping operation may be disposed perpendicular to the first surface 1011 or the second surface 1012, so that a path of the flow channel 1101 between the first surface 1011 and the second surface 1012 is relatively short, thereby facilitating transmission of the atomization matrix. In some alternative embodiments, the plurality of flow channels 1101 may also be disposed perpendicular to only one of the first surface 1011 and the second surface 1012 at any suitable angle in a range of 30 ° to 90 ° with respect to the other, so as to allow the spatial layout of the inner flow channel of the atomizing core to be more reasonable.

For example, in some embodiments, performing the first laser pre-shaped operation on the substrate 101 may include or be configured to make the plurality of flow channels 1101 formed in the shaping operation form other included angles with the first surface 1011 and /or the second surface 1012, and the included angle between the two may also be 30 °, 45 ° or 60 °, which is not limited in embodiments of the present disclosure.

Performing the shaping operation on the pre-shaped flow channel array may include, for example, by adjusting a parameter such as a composition of an etchant in the shaping operation, so that a radial dimension of any flow channel 1101 in at least a portion of the plurality of flow channels 1101 formed in the shaping operation is equal throughout the axial direction. For example, in some embodiments, each of the formed plurality of flow channels 1101 has an equal size in the axial direction. In some alternative embodiments, each flow channel of a part of the formed plurality of flow channels 1101 has an equal size in the axial direction, and the other part of the flow channels may have a non-uniform size in the axial direction, for example, gradually increasing or decreasing from the first surface 1011 or the second surface 1012 to the axial middle part as will be mentioned later.

The opening of each flow channel 1101 on the first surface 1011 or the second surface 1012 may be circular, elliptical, or polygonal, etc., which is not limited in embodiments of the present disclosure. Further, the shape and the radial dimension of each flow channel 1101 in the plurality of flow channels 1101 formed in the shaping operation are consistent, so that the quantity of atomization matrix conducted from each flow channel 1101 to the second surface 1012 is equal, and the liquid is uniformly guided.

In some embodiments, performing the shaping operation on the pre-shaped flow channel array may include: causing the flow channels 1101 inside the base body 102 formed in the shaping operation have different sizes in a cross section in the axial direction. Specifically, in some embodiments, the radial dimension of the flow channel 1101 gradually increases from two ends (i.e., the first surface 1011 and the second surface 1012) toward the middle, 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 triangular, quadrilateral, pentagonal, or the like.

In some embodiments, the shaping operation on the pre-shaped flow channel array may be configured such that the radial dimension of the flow channel 1101 formed in the subsequent shaping operation may also vary in other forms. For example, in some alternative embodiments, the radial dimension of the flow channel 1101 gradually increases from both ends (i.e., the first surface 1011 and the second surface 1012) toward the middle. In some alternative embodiments, performing the shaping operation on the pre-shaped flow channel array may include or be configured such that the radial dimension of the flow channel 1101 formed in the shaping operation has a radial dimension gradually decreasing from the first surface 1011 or the second surface 1012 toward the middle, as shown in FIGS. 5 and 6.

In some embodiments, the radial dimension of the flow channel 1101 formed by the final shaping operation may range from 5 μm to 100 μm. For example, the radial dimension of the flow channel 1101 may be any suitable dimension such as 10 μm, 30 μm, 50 μm, 70 μm or 90 μm, which is not limited in embodiments of the present disclosure. In addition, it should be understood that when the radial cross-sectional shape of the flow channel is circular, the radial size 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 radial size may refer to a diameter of a circular shape having an equivalent cross-sectional area to the shape.

In some embodiments, the distance between the flow channels 1101 formed after the final shaping operation is also one of important indicators affecting the atomization effect, and the distance between the flow channels 1101 in the present disclosure may be set to 10 μm to 200 μm. For example, the distance between the flow channels 1101 may be any suitable value such as 13 μm, 50 μm, 80 μm, 100 μm, 150 μm or 180 μm, which is not limited in embodiments of the present disclosure. In some embodiments, the distances between the flow channels 1101 formed after the final shaping operation may also be set to be unequal. For example, the distance between the channels in the middle region of the plurality of channels 1101 may be set to be smaller, and as the middle region continuously extends radially outward, the distance between the channels in these regions may be set to be larger.

At block 240, a shaping operation is performed on the at least one layer pre-shaped liquid storage channel 120, so that the at least one layer pre-shaped liquid storage channel 120 forms at least one layer of liquid storage channel 1201, and the at least one layer of liquid storage channel 1201 is in communication with at least some of the plurality of flow channels 1101. In some embodiments, the two shaping operations of forming the liquid storage channel 120 and forming the flow channel in block 240 may be completed synchronously. The plurality of flow channels 1101 are communicated with each other through the liquid storage channel 1201 after the shaping operation, so that the atomization matrix entering the atomizing core through the flow channels 1101 may be temporarily stored in the liquid storage channel 1202, and the atomization effect of the atomization matrix in the atomizing core 100 is improved. Meanwhile, even when a small number of the flow channels 1101 inlets are blocked, the flow channels 1101 may supplement the atomization matrix to each other, thereby ensuring the atomization effect. The number of the liquid storage channels 1201 determines the liquid storage capacity of the base body 102, so the number of the liquid storage channels 1202 may be reasonably set according to factors such as the required atomization effect and the setting manner of the heating body.

In this processing stage, the shaping operation is performed on the pre-shaped portion, causing the flow channels array to form a pore structure. As mentioned above, the flow channel 1101 formed after the final shaping operation is a pore channel that penetrates both the first surface 1011 and the second surface 1012, and the liquid storage channel 1201 is a pore channel that communicates the plurality of flow channels 1101. The interior of all the pore channels finally formed by the method according to the embodiment of the present disclosure is smooth and smooth, which is more conducive to the flow of the atomized matrix in the flow channel 1101, and effectively avoids the risk of blocking the pore channels. Meanwhile, the liquid storage channel 1201 also plays a role in storing liquid, and even if individual flow channels 1101 are blocked, the flow channels 1101 may supplement the atomization matrix mutually through the liquid storage channel 1201, thereby improving the atomization effect of the atomizing core and the user experience. In some embodiments, performing the second laser pre-shaped operation on the substrate 101 may include forming one or more layers of pre-shaped liquid storage channels 120 arranged in the middle part of the first surface 1011 and the second surface 1012. In this way, after the shaping operation, one or more layers of pre-shaped liquid storage channels 120 respectively form one or more layers of liquid storage channels 1201. The flow channels 1101 are communicated with each other through the liquid storage channel 1201, so that the liquid level height of the atomized matrix in each flow channel 1101 in the base body 102 is consistent, the uniform liquid supply to the second surface 1012 is ensured, and the atomization effect is good. Meanwhile, the liquid storage channel 1201 provides more storage space for the atomization matrix, thereby enhancing the oil storage function of the base body 102, and further improving the stability of atomization.

The radial dimensions of each liquid storage channel 1201 may be equal, 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, or the like. Further, when at least two layers of liquid storage channels 1201 are provided, shapes and radial sizes of the liquid storage channels 1201 may be set to be consistent, so that liquid storage capacities of the liquid storage channels 1201 are the same.

Each layer of the liquid storage channels 1201 formed by the shaping operation may include a plurality of liquid storage channels extending in different directions. For example, some liquid storage channels extend along a first direction (for example, the X-axis) , some liquid storage channels extend along a second direction (for example, 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, circulation and storage of the atomization matrix in the atomizing core may 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 suitable value within a range of 30 ° to 90 °.

In some embodiments, performing the second laser pre-shaped operation on the substrate 101 may further include or be configured such that each of the at least one layer of liquid storage channel 1201 formed in the subsequent shaping operation is vertically disposed with respect 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 perpendicular to the flow channel 1101, so that the liquid storage capacity may be improved. In some embodiments, after the second laser pre-shaped operation is performed on the substrate 101, the liquid storage channel 1201 formed in the shaping operation may be disposed in another angular relationship with the flow channel 1101. For example, the predetermined angle between the flow channel 1101 and the liquid storage channel 1201 may be set between 30 ° and 90 °, for example, 60 °, which is not limited in embodiments of the present disclosure.

In some embodiments, the shapes and radial dimensions of the liquid storage channels 1201 in different layers on the same base body 102 after the shaping operation may be the same as or different from the shapes and radial dimensions of the flow channels 1101, which is not limited in embodiments of the present disclosure.

In some embodiments, performing the first laser pre-shaped operation and the second laser pre-shaped operation on the substrate 101 may further include or be configured such that a ratio of a radial dimension of the flow channel 1101 to a radial dimension of the liquid storage channel 1201 formed in the shaping operation is 1: 5 -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 in any suitable ratio such as 1: 6 or 1: 8.

In some embodiments, performing the second laser pre-shaped operation on the substrate 101 may further include: causing at least one of the liquid storage channels of the liquid storage channels formed in the subsequent shaping operation to be an extended channel. In this case, it is necessary to extend the modified region of the substrate 101 outward during the second laser pre-shaped operation, so that the extended channel formed in the subsequent shaping operation is communicated with all the flow channels 1101, and at the same time, a part of the extended channel extends outside the flow channel region to provide more liquid storage space.

In some embodiments, the arrangement of the extended channel and the other liquid storage channels may be similar. For example, the extended channel may also be disposed perpendicular to the flow passage 1101. The extended channel may also be arranged parallel to the first surface 1011 and the second surface 1012 and perpendicular to the flow channel 1101 to further improve the liquid storage capacity. In some other embodiments, the extended channel formed in the shaping operation may be disposed in other angular relationship with the flow channel 1101, for example, the angle between the extended channel and the flow channel 1101 may also be disposed at any suitable angle such as 30 °, 45 °, or 60 °.

Embodiments of the present disclosure provide an atomizing core 100 by using the preparing method of the glass-based atomizing core described above. The atomizing core 100 includes a base body 102 and a heating body prepared by the above method. The heating body may be arranged on the second surface 1012 of the base body 102 or at any other suitable position for heating and atomizing the atomization matrix transferred to the second surface 1012.

In some embodiments, the heating body may cover the opening of the flow channel 1101 on the second surface 1012, thereby sufficiently atomizing the atomization matrix transferred to the second surface 1012. It may be understood that, due to the action of the capillary force, the atomization matrix is sucked by the first surface 1011, and is moved up or down through the flow channel 1101 and transmitted to the second surface 1012, so that the heating body heats and atomizes the atomization matrix.

Embodiments of the present disclosure further provide an atomizing device including a power supply and an atomizing core 100 coupled to the power supply. The preparing method of the atomizing core 100 has been described in detail above and will not be described herein. The power supply includes a battery; the battery is configured to supply power to the atomizing device, so that the atomizing core 100 may atomize an atomization matrix transferred to the second surface 1012 to form an aerosol. The atomizing core 100 and the power supply may be integrally arranged or detachably connected, which is not limited in embodiments of the present disclosure.

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 variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments. The selection of terms as used herein is intended to best explain the principles of embodiments, the practical application or technical improvements to the market, or to enable others of ordinary skill in the art to understand embodiments disclosed herein.

Claims

A preparing method of an atomizing core, characterized by comprising:

providing a substrate (101) , the substrate (101) comprising a first surface (1011) and a second surface (1012) parallel to each other;

performing a first laser pre-shaped operation on the substrate (101) to form a pre-shaped flow channel array, the pre-shaped flow channel array comprising a plurality of pre-shaped flow channels (110) arranged in a pattern of a predetermined shape;

performing a second laser pre-shaped operation within the substrate (101) to form at least one layer of pre-shaped liquid storage channels (120) communicating the plurality of pre-shaped flow channels (110) between the first surface (1011) and the second surface (1012) ;

performing a shaping operation on the pre-shaped 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 pre-shaped flow channels (110) through the shaping operation, the plurality of flow channels (1101) penetrating from the first surface (1011) to the second surface (1012) ; and

performing a shaping operation on the at least one layer of pre-shaped liquid storage channels (120) , to cause the at least one layer of pre-shaped liquid storage channels (120) to form at least one layer of liquid storage channels (1201) , and the at least one layer of liquid storage channels (1201) communicating with at least a portion of the plurality of flow channels (1101) .
The preparing method of claim 1, characterized in that the second laser pre-shaped operation forms the at least one layer of pre-shaped liquid storage channels (120) inside the substrate (101) by focusing a laser inside the substrate (101) .
The preparing method of claim 1, characterized in that the shaping operation employs Through-Glass Via (TGV) technology.
The preparing method of claim 1, characterized in that the first laser pre-shaped operation employs Bessel laser.
The preparing method of any of claims 1-4, characterized in that the pattern of a predetermined shape comprises a circular, an elliptical, or a polygonal shape.
The preparing method of any of claims 1-4, characterized in that performing a shaping operation on the pre-shaped flow channel array comprises: causing each of at least a portion of flow channels (1101) of the plurality of flow channels (1101) formed in the shaping operation to have a consistent radial dimension in an axial direction.
The preparing method of any of claims 1-4, characterized in that performing a shaping operation on the pre-shaped flow channel array comprises: causing each of at least a portion of flow channels (1101) of the plurality of flow channels (1101) formed in the shaping operation to have a radial dimension that gradually decreases in an axial direction from the first surface (1011) or the second surface (1012) toward a middle part.
The preparing method of any of claims 1-4, characterized in that performing a shaping operation on the pre-shaped channel array comprises: causing a radial dimension of the flow channel (1101) formed in the shaping operation to gradually increase in a direction from the first surface (1011) or the second surface (1012) towards a middle part.
The preparing method of any of claims 1-4, characterized in that a distance between the flow channels (1101) is within a range of 10 μm to 200 μm.
The preparing method of any of claims 1-4, characterized in that a radial dimension of the flow channels (1101) ranges from 5 μm to 100 μm.
The preparing method of any of claims 1-4, characterized in that performing a first laser pre-shaped operation on the substrate (101) comprises:

causing an extension direction of at least a portion of the plurality of flow channels (1101) formed in the shaping operation perpendicular to the first surface (1011) .
The preparing method of any of claims 1-4, characterized in that performing a second laser pre-shaped operation within the substrate (101) comprises:

forming one layer of pre-shaped liquid storage channel (120) between the first surface (1011) and the second surface (1012) , and the pre-shaped liquid storage channel (120) being arranged in a middle part between the first surface (1011) and the second surface (1012) .
The preparing method of any of claims 1-4, characterized in that performing a second laser pre-shaped operation within the substrate (101) comprises:

forming a plurality of layers of pre-shaped liquid storage channels (120) between the first surface (1011) and the second surface (1012) , and the plurality of layers of pre-shaped liquid storage channels (120) being evenly distributed between the first surface (1011) and the second surface (1012) .
The preparing method of any of claims 1-4, characterized by performing a second laser pre-shaped operation within the substrate (101) to cause the liquid storage channel (1201) and the flow channel (1101) formed in the shaping operation to be at a predetermined angle, and the predetermined angle being within a range of 30 ° to 90 °.
The preparing method of any of claims 1-4, characterized by performing a second laser pre-shaped operation within the substrate (101) to cause the liquid storage channel (1201) and the flow channel (1101) formed in the shaping operation to be perpendicular to each other.
The preparing method of any of claims 1-4, characterized by performing a first laser pre-shaped operation on the substrate (101) to cause a radial area of all the flow channels (1101) formed in the shaping operation to occupy 15%to 45%of an area of the pattern of a predetermined shape.
The preparing method of any of claims 1-4, characterized in that performing a first laser pre-shaped operation and a second laser pre-shaped operation on the substrate (101) comprises: causing a ratio of a radial dimension of the flow channel (1101) to a radial dimension of the liquid storage channel (1201) formed in the shaping operation to be 1: 5 to 1: 10.
An atomizing core prepared by the method of any of claims 1-17.
An atomizing device, characterized by comprising:

a power supply; and

the atomizing core of claim 18, coupled to the power source.