Atomizing core, atomizer, electronic atomization device and manufacturing method of atomizing core

Abstract

This application provides an atomizing core, an atomizer, an electronic atomizing device, and a method for manufacturing an atomizing core. The atomizing core includes a substrate and a heating element. The substrate has liquid guiding holes and a first surface and a second surface disposed opposite to each other. At least a portion of the first surface forms a liquid inlet surface, and at least a portion of the second surface forms a heating region. The heating region includes heating surfaces facing different directions. The liquid guiding holes are disposed in the substrate to guide the aerosol generation matrix from the liquid inlet surface to the heating surface. The heating element is disposed on the heating surface. The atomizing core provided by this application has heating surfaces facing different directions in its heating region. This allows for atomization spraying in all directions, meaning the atomized aerosol is sprayed at different angles. This reduces the impact between the aerosol and the airflow flowing in from the outside, and makes it easier for the airflow flowing in from the outside to carry away the atomized aerosol at different atomization angles, thus increasing the vapor production.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular to an atomizing core, an atomizer, an electronic atomization device, and a method for manufacturing an atomizing core. Background Technology

[0002] Electronic atomizing devices contain an atomizing core, which is used to heat and atomize an aerosol-generating matrix to produce an aerosol. With technological advancements, users have placed higher demands on the vapor production of electronic atomizing devices, but existing atomizing cores often fail to produce sufficient vapor, impacting the user experience. Summary of the Invention

[0003] In view of this, the present application aims to provide an atomizing core, atomizer, electronic atomizing device, and a method for manufacturing an atomizing core that can increase vapor production.

[0004] To achieve the above objectives, embodiments of this application provide an atomizing core, comprising:

[0005] The substrate has liquid guiding holes and a first surface and a second surface disposed opposite to each other. At least a portion of the first surface forms a liquid inlet surface, and at least a portion of the second surface forms a heating region. The heating region includes heating surfaces facing different directions. The liquid guiding holes are disposed in the substrate for guiding the aerosol generating matrix from the liquid inlet surface to the heating surface.

[0006] A heating element is disposed on the heating surface.

[0007] In some embodiments, the heating surface is parallel to the corresponding liquid inlet surface.

[0008] In some embodiments, at least a portion of the first surface forms a groove, and the liquid inlet surface is disposed on the groove wall surface.

[0009] In some embodiments, at least a portion of the second surface protrudes to form the heating region.

[0010] In some embodiments, the outline of the heating region is a triangular prism, and at least two sides of the triangular prism are the heating surfaces.

[0011] In some embodiments, the outline of the heating region is cylindrical, and at least a portion of the outer surface of the cylinder is the heating surface.

[0012] In some embodiments, the outline of the heating region is spherical, and the heating surface at least partially constitutes the sphere.

[0013] In some embodiments, the pore size of the liquid guiding orifice is 20 μm-100 μm; and / or,

[0014] The porosity of the heating surface is 20%-50%; and / or,

[0015] The length of the liquid guiding hole is 0.1mm-10mm.

[0016] In some embodiments, the outline of the heating region is parabolic, hyperboloidal, or ellipsoidal.

[0017] This application also provides an atomizer, comprising:

[0018] A liquid storage chamber is used to store the aerosol generation matrix;

[0019] The atomizing core described in any of the above embodiments, wherein the first surface of the atomizing core is in fluid communication with the liquid storage chamber.

[0020] In some embodiments, the atomizer includes:

[0021] The housing is provided with a receiving cavity and an air outlet channel;

[0022] At least a portion of the structure is disposed in the receiving cavity of the atomizing seat, the top wall of the atomizing seat and the housing define the liquid storage cavity, the atomizing seat forms an atomizing cavity and at least one liquid inlet channel, the liquid inlet channel communicates between the liquid storage cavity and the atomizing core disposed in the atomizing cavity, the atomizing cavity communicates with the outside through the air outlet channel, and the aerosol generating matrix in the liquid storage cavity can be guided to the first surface through the liquid inlet channel.

[0023] In some embodiments, the atomizer includes an air intake channel communicating with the outside, and the air intake channel is inclined to the heating surface.

[0024] In another aspect, this application provides an electronic atomizing device, including a power supply assembly and an atomizer as described in any of the above claims, wherein the power supply assembly is electrically connected to the atomizer.

[0025] This application embodiment also provides a method for manufacturing an atomizing core. The atomizing core includes a substrate and a heating element. The substrate has liquid guiding holes and a first surface and a second surface disposed opposite to each other. At least a portion of the first surface forms a liquid inlet surface, and at least a portion of the second surface forms a heating region. The heating region includes heating surfaces facing different directions. The liquid guiding holes are disposed in the substrate for guiding the aerosol generating matrix from the liquid inlet surface to the heating surface. The heating element is disposed on the heating surface. The manufacturing method includes:

[0026] A reverse mold is manufactured that is structurally nested with the substrate, wherein the reverse mold has a column nested with the liquid guide hole;

[0027] The mold frame and the mold gap, which are adapted to the contour shape of the mold, are fitted together to define the mold cavity.

[0028] The slurry fills the mold cavity to form a green embryo;

[0029] The embryo is processed to form the matrix.

[0030] In some embodiments, the manufacturing method includes:

[0031] A master mold with the same structure as the substrate is manufactured, and the reverse mold is manufactured based on the master mold.

[0032] In some embodiments, after sintering the green embryo to form the matrix, the manufacturing method includes:

[0033] A heating film is formed by depositing or brushing a thick film onto the heating surface of the substrate.

[0034] In some embodiments, the anti-mold is made of a soft material and / or the anti-mold is a disposable sacrificial mold.

[0035] In some embodiments, manufacturing a reverse mold that is structurally nested with the substrate includes:

[0036] First, a flexible template is integrally injection molded, wherein the flexible template includes a support plate and a plurality of columns disposed on the support plate;

[0037] The support plate is folded or bent to form the reverse mold.

[0038] In some embodiments, a mold frame adapted to the contour shape of the reverse mold and the reverse mold gap are fitted together to jointly define the mold cavity, including:

[0039] The mold frame has a receiving groove, and the reverse mold gap is fitted into the receiving groove.

[0040] In some embodiments, a mold frame adapted to the contour shape of the reverse mold and the reverse mold gap are fitted together to jointly define the mold cavity, including:

[0041] The mold has a receiving groove, and the mold frame is fitted into the receiving groove.

[0042] In some embodiments, the outline shape of the heating area is a triangular prism, and at least two sides of the triangular prism are the heating surfaces;

[0043] The cross-sectional shape of the reverse mold profile is a triangular prism, and the side of the reverse mold corresponding to the heating surface has multiple columns.

[0044] In some embodiments, the outline of the heating region is cylindrical, and at least a portion of the outer surface of the cylinder is the heating surface;

[0045] The profile of the reverse mold is cylindrical, and the side of the reverse mold corresponding to the heating surface has multiple columns.

[0046] In some embodiments, the substrate has a spherical profile, and the heating surface at least partially constitutes the sphere.

[0047] The profile of the reverse mold is spherical, and the side of the reverse mold corresponding to the heating surface has multiple columns.

[0048] The atomizing core provided in this application includes a substrate and a heating element. The substrate has liquid guiding holes and a first surface and a second surface disposed opposite to each other. At least a portion of the first surface forms a liquid inlet surface, and at least a portion of the second surface forms a heating area. The heating area includes heating surfaces facing different directions. The liquid guiding holes are disposed in the substrate to guide the aerosol generation matrix from the liquid inlet surface to the heating surface. The heating element is disposed on the heating surface, i.e., the liquid inlet surface and the heating surface are connected through the liquid guiding holes. Thus, the heating area includes heating surfaces facing different directions, i.e., the liquid guiding holes on each heating surface face different directions. In other words, the atomizing core has atomization angles with different orientations, which can realize atomized spraying in all directions. This means that the atomized aerosol is sprayed at different angles, thereby reducing the collision between the aerosol and the airflow flowing in from the outside to a certain extent. It is more conducive to the airflow flowing in from the outside carrying away the aerosol atomized at different atomization angles, thus increasing the amount of smoke. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the heating element in one embodiment of this application;

[0050] Figure 2 for Figure 1 A schematic diagram of the heating element from another perspective;

[0051] Figure 3 for Figure 1 A structural schematic diagram of the heating element from another perspective;

[0052] Figure 4 for Figure 3 A half-sectional view of the heating element shown;

[0053] Figure 5 This is a schematic diagram of the electronic atomizing device in one embodiment of this application;

[0054] Figure 6 This is a flowchart illustrating a method for manufacturing a heating element according to an embodiment of this application.

[0055] Figure 7 This is a scanning electron microscope image of the inverse mode in one embodiment of this application;

[0056] Figure 8 Here is a scanning electron microscope image of the reverse mode in another embodiment of this application;

[0057] Figure 9 This is a scanning electron microscope image of the reverse mode in another embodiment of this application;

[0058] Figure 10 This is a schematic diagram of the manufacturing process of the substrate in one embodiment of this application.

[0059] Explanation of reference numerals in the attached figures

[0060] Atomizing core 10; substrate 11; first surface 11a; second surface 11b; liquid guiding hole 11c; heating area 11d; heating surface 11e; groove 11f; liquid inlet surface 11g; heating element 12;

[0061] Atomizer 100; Liquid storage chamber 100a; Housing 110; Air outlet channel 110a; Air inlet channel 110b; Atomizing base 120; Atomizing chamber 120a; Air guide channel 120b; Open end 120c; Closed end 120d; Vent 120e;

[0062] Reverse mold 1; Female mold 2; Mold frame 3; Detailed Implementation

[0063] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0064] This application provides an electronic atomizing device, including a power supply component and an atomizer provided in any embodiment of this application, wherein the power supply component is electrically connected to the atomizer 100.

[0065] Electronic atomizing devices are used to atomize an aerosol-generating matrix to produce an aerosol for inhalation by a user. The aerosol-generating matrix includes, but is not limited to, pharmaceuticals, nicotine-containing materials, or nicotine-free materials.

[0066] The atomizer 100 is used to store the aerosol generation matrix and atomize the aerosol generation matrix to form an aerosol that can be inhaled by the user.

[0067] For example, the outline of an electronic atomizing device can be roughly elongated. This makes it easy for the user to hold the electronic atomizing device with their fingers.

[0068] For example, the electronic atomizing device includes a main unit, which includes a power supply component (not shown) electrically connected to the atomizer 100 for supplying power to the atomizer 100 and controlling the atomizer 100 to operate so that the atomizer 100 can atomize the aerosol generation matrix to form an aerosol.

[0069] It should be noted that the atomizer 100 and the main unit can be a single molded structure or a separate structure. For example, the atomizer 100 can be detachably connected to the main unit. The detachable connection methods include, but are not limited to, threaded connection and magnetic connection.

[0070] Please see Figures 1 to 5 The atomizer 100 includes a liquid storage chamber 100a and an atomizing core 10 provided in any embodiment of this application. The liquid storage chamber 100a is used to store the aerosol generating matrix, and the first surface 11a of the atomizing core 10 is in fluid communication with the liquid storage chamber 100a. The atomizing core 10 and the liquid storage chamber 100a are in fluid communication, meaning that the aerosol generating matrix can be guided to the atomizing core 10 via the liquid storage chamber 100a. The atomizing core 10 is used to absorb and heat the atomized aerosol generating matrix.

[0071] This application provides an atomizer; please refer to [link / reference]. Figure 5 It includes a housing 110 and an atomizing base 120.

[0072] Please see Figure 5 The housing 110 is provided with a receiving cavity and an air outlet channel 110a. The aerosol generated by the aerosol generating matrix is ​​provided to the user for inhalation through the air outlet channel 110a. It should be noted that the specific way of using the atomizer 100 is not limited here. For example, the user can inhale the aerosol through the housing 110 or inhale the aerosol through an additional mouthpiece in conjunction with the housing 110.

[0073] Please continue reading. Figure 5 At least a portion of the structure of the atomizing base 120 is disposed within a receiving cavity. A liquid storage cavity 100a for storing the aerosol generation matrix is ​​defined between the top wall of the atomizing base 120 and the housing 110. The atomizing base 120 forms the atomizing cavity 120a and at least one liquid inlet channel. The liquid inlet channel connects the liquid storage cavity 100a and the atomizing core 10 disposed in the atomizing cavity 120a. The atomizing cavity 120a is connected to the outside via the air outlet channel 110a. In other words, the aerosol generation matrix stored in the liquid storage cavity 100a can enter the atomizing cavity 120a through the liquid inlet channel for heating and atomization, and the aerosol generated by heating and atomization flows out through the air outlet channel 110a.

[0074] It should be noted that the statement that at least a portion of the structure of the atomizing seat 120 is disposed within the receiving cavity means that either a portion of the structure of the atomizing seat 120 is disposed within the receiving cavity, or the entire structure of the atomizing seat 120 is disposed within the receiving cavity.

[0075] The aerosol generating matrix in the storage chamber 100a is guided to the atomization chamber 120a through the liquid inlet channel for heating and atomization to generate aerosols. After the aerosol generating matrix in the storage chamber 100a is consumed, outside air enters the storage chamber 100a through the ventilation channel to balance the pressure in the storage chamber 100a.

[0076] This application provides an atomizing core; please refer to [link / reference]. Figures 1 to 4 The system includes a substrate 11 and a heating element 12. The substrate 11 has a liquid guiding hole 11c and a first surface 11a and a second surface 11b disposed opposite to each other. At least a portion of the first surface 11a forms a liquid inlet surface 11g, and at least a portion of the second surface 11b forms a heating region 11d. The heating region 11d includes heating surfaces 11e facing different directions. The liquid guiding hole 11c is disposed on the substrate 11 to guide the aerosol generating matrix from the liquid inlet surface 11g to the heating surface 11e. The heating element 12 is disposed on the heating surface 11e. That is, the liquid guiding hole 11c connects the liquid inlet surface 11g and the heating surface 11e. By disposing the heating element 12 on the heating surface 11e, the aerosol generating matrix distributed on the heating surface 11e is heated and atomized.

[0077] The atomizing core provided in this application embodiment includes a heating area 11d comprising heating surfaces 11e facing different directions. That is, the liquid guiding holes 11c on each heating surface 11e face different directions. In other words, the atomizing core 10 has atomization angles with different orientations, which can achieve atomization spraying in all directions. This means that the atomized aerosol is sprayed at different angles, thereby reducing the collision between the aerosol and the airflow flowing in from the outside to a certain extent. This makes it more conducive for the airflow flowing in from the outside to carry out the atomized aerosol at different atomization angles, thereby increasing the amount of smoke.

[0078] In one embodiment, at least a portion of the second surface 11b protrudes to form a heating region 11d. By forming the heating region 11d by protruding at least a portion of the second surface 11b, the heating region 11d includes heating surfaces 11e facing different directions. Liquid guiding holes 11c are disposed on the substrate 11. Thus, with a fixed projected area of ​​the heating surface 11e on the second surface 11b, by forming the heating region 11d by protruding at least a portion of the second surface 11b, the heating region 11d includes heating surfaces 11e facing different directions, increasing the total area of ​​the heating surface 11e. The aerosol generating matrix distribution area on the heating surface 11e is larger, which can increase the heat exchange area of ​​the aerosol generating matrix. This not only increases the atomization amount but also heats the atomized aerosol generating matrix more evenly, reducing the content of harmful substances generated by local high temperatures in the aerosol generating matrix, and effectively improving the user experience.

[0079] In one embodiment, the heating surface 11e is parallel to the corresponding liquid inlet surface 11g. This ensures uniform and stable liquid inlet, allowing the atomizing core 10 to heat the atomized aerosol matrix more evenly.

[0080] It should be noted that the parallelism between the heating surface 11e and the corresponding liquid inlet surface 11g means that the distance from all points on the heating surface 11e to the corresponding liquid inlet surface 11g is equal. The heating surface 11e and the corresponding liquid inlet surface 11g can be either planes or curved surfaces.

[0081] It should be noted that the heating surface 11e is parallel to the corresponding liquid inlet surface 11g, and the liquid guiding hole 11c is set approximately perpendicular to the heating surface 11e and the liquid inlet surface 11g.

[0082] In one embodiment, the liquid guiding holes 11c are arranged in an orderly manner. On the one hand, compared with disordered holes, the number of ordered liquid guiding holes 11c can be designed and calculated, and the guiding effect of the substrate 11 on the aerosol generation matrix is ​​more controllable, which can improve the production consistency of the product. In other words, in mass production, the liquid guiding holes 11c of different substrates 11 are basically the same, so that the heating effect of the heating element 12 of the same batch tends to be consistent.

[0083] Disordered arrangement refers to the holes being generated randomly without any set rules. Ordered arrangement refers to the multiple liquid guiding holes 11c being arranged according to set rules. Ordered arrangement includes, but is not limited to, array arrangement. For example, in one embodiment, the array arrangement can be a one-dimensional array arrangement of multiple liquid guiding holes 11c, that is, multiple liquid guiding holes 11c are arranged at intervals in one direction. In another embodiment, the array arrangement can be a two-dimensional array arrangement of multiple liquid guiding holes 11c, that is, multiple liquid guiding holes 11c are arranged at intervals in two intersecting directions. For example, the multiple liquid guiding holes 11c can be arranged in a rectangular array or a circular array, etc.

[0084] The substrate 11 can be made of ceramic material. Ceramic material has the characteristics of good thermal conductivity and uniformity.

[0085] The specific structural form of the heating element 12 is not limited here. For example, the heating element 12 is a heating film disposed on the substrate 11.

[0086] The material of the heating film is not limited. For example, the heating film includes, but is not limited to, metals and / or alloys. For example, the heating film is made of aluminum, gold, silver, copper, nickel-chromium alloy, nickel-chromium-iron alloy, iron-chromium-aluminum alloy, nickel, platinum, or titanium, etc.

[0087] The resistance value of the heating film can be set according to requirements. For example, in this application, the resistance value of the heating film is between 0.2Ω (ohms) and 0.8Ω. In this way, the heating film can heat up quickly and can be well matched with the power supply components.

[0088] In one embodiment, please refer to Figure 3 and Figure 4 The heating surfaces 11e are symmetrically arranged along the center of the substrate 11. This allows the atomizing core 10 to heat the atomized aerosol matrix more evenly. In addition, the symmetrical arrangement of the heating surfaces 11e along the center of the substrate 11 helps to make each heating surface 11e and the liquid inlet surface 11g of the atomizing core 10 equidistant, thereby maintaining uniform and stable liquid inlet.

[0089] In one embodiment, please refer to Figures 1 to 4 At least a portion of the first surface 11a forms a groove 11f, and the liquid inlet surface 11g is disposed on the groove wall surface of the groove 11f. On the one hand, the groove 11f can temporarily store the aerosol generation matrix, which not only reduces the direct impact of a large amount of aerosol generation matrix from the liquid storage chamber 100a on the atomizing core 10, thus playing a role in slowing the flow, but also pre-stores the aerosol generation matrix, increasing the flow guiding area so as to replenish it to the heating surface 11e in a timely manner.

[0090] In one embodiment, please refer to... Figures 1 to 4 The heating area has a triangular prism shape, with at least two sides of the prism being heating surfaces 11e. That is, the liquid guiding holes 11c on at least two heating surfaces 11e face different directions. In other words, the atomizing core 10 has atomization angles with different orientations, which can achieve atomization spraying in all directions. This means that the atomized aerosol is sprayed at different angles, thereby reducing the impact of aerosol on the airflow flowing in from the outside to a certain extent.

[0091] In one embodiment, please refer to... Figures 1 to 4The heating area 11d includes two heating surfaces 11e, and the distance between the two heating surfaces 11e gradually decreases as it moves away from the second surface 11b. That is, the two heating surfaces 11e gradually move closer as they move away from the second surface 11b. This is beneficial because the liquid guiding hole 11c is oriented in a direction approximately perpendicular to the heating surface 11e. In other words, when the substrate 11 is placed horizontally and the heating area 11d faces downward, both atomization angles of the atomizing core 10 are oriented to the sides. This helps to reduce the direct downward spraying of atomized aerosol, thereby reducing the collision between aerosol and airflow from the outside to a certain extent. It also makes it easier for airflow from the outside to carry away aerosols atomized at different atomization angles, thus increasing the amount of smoke.

[0092] In one embodiment, please refer to... Figures 1 to 4 The two heating surfaces 11e intersect at the ends away from the second surface 11b. That is, the heating area 11d is a triangular prism, and at least two sides of the triangular prism are heating surfaces 11e. This atomizing core 10 increases the total heating area and can reduce the collision between aerosol and airflow from the outside to a certain extent.

[0093] In one embodiment, the heating region 11d has a cylindrical outline, with at least a portion of its outer surface serving as the heating surface 11e. The cylindrical shape includes, but is not limited to, cuboids, cubes, and cylinders. This embodiment uses a cuboid as an example. The heating region 11d of the cuboid has four outer surfaces, a bottom surface, and a top surface. When the bottom surface coincides with the second surface 11b, some or all of the four outer surfaces and the top surface of the cuboid can serve as the heating surface 11e. This not only reduces the design difficulty of the heating surface 11e but also significantly increases its total area, thereby significantly improving the atomization amount. The outline shape of the heating region 11d refers to its outer outline shape in multi-dimensional space.

[0094] It should be noted that the top surface of the cuboid can be rounded or designed as an arc surface that smoothly connects with the sides, further increasing the total area of ​​the heating surface 11e.

[0095] In one embodiment, the heating surface 11e is curved, and the curvature of this surface is not zero. Thus, compared to the planar heating body 12, the ratio of the curved heating surface 11e to the heat dissipation surface is relatively large, improving the heat utilization rate. Here, the heat dissipation surface is equivalent to the liquid inlet surface 11g. In addition, the curved heating surface 11e has a wider atomization angle. Thus, when the heating area 11d faces downward, it is beneficial to reduce the direct downward spraying of atomized aerosols, thereby reducing the collision between aerosols and airflows flowing in from the outside to a certain extent. This also makes it easier for airflows flowing in from the outside to carry away aerosols atomized at different atomization angles, further increasing the amount of smoke.

[0096] For example, the outline of the heating region 11d is spherical, and the heating surface 11e at least partially constitutes a sphere. In this way, the ratio of the heating surface 11e to the heat dissipation surface can be relatively large, thereby improving heat utilization and increasing atomization.

[0097] In one embodiment, the outline shape of the heating region 11d is parabolic, hyperboloid, or ellipsoidal. These heating regions 11d can have a curved heating surface 11e on their outer side, resulting in a relatively large ratio between the curved heating surface 11e and the heat dissipation surface, thus improving heat utilization, increasing smoke volume, and achieving better atomization.

[0098] Understandably, while a small pore size of the liquid guiding orifice 11c can reduce the liquid supply rate, it also limits it. Conversely, a large pore size, while increasing the liquid supply rate, poses a risk of leakage. Therefore, in one embodiment, the pore size of the liquid guiding orifice 11c is between 20μm and 100μm. For example, the pore size of the liquid guiding orifice 11c can be 20μm, 21μm, 22μm, 25μm, 30μm, 35μm, 40μm, 50μm, 60μm, 70μm, 80μm, 85μm, 90μm, 97μm, or 100μm, etc. This moderate pore size of the liquid guiding orifice 11c not only ensures high liquid supply efficiency but also avoids the risk of leakage.

[0099] It is understandable that while excessively high porosity of the heating surface 11e can increase the liquid supply, it also results in poor structural strength of the substrate 11. Conversely, excessively low porosity of the heating surface 11e, while increasing structural strength, leads to insufficient liquid supply. Therefore, in one embodiment, as shown in the figure, the porosity of the heating surface 11e is 20%-50%, meaning the porosity is between 20% and 50%. For example, the porosity of the heating surface 11e can be 20%, 20.5%, 21%, 22%, 25%, 30%, 35%, 40%, 45%, or 50%, etc. This moderate porosity of the heating surface 11e ensures both a large liquid supply and high structural strength of the substrate 11.

[0100] It is understandable that if the length of the liquid guiding hole 11c is too long, it will lead to slow liquid supply, while if the length of the liquid guiding hole 11c is too short, it will lead to leakage. Therefore, in one embodiment, as shown in the figure, the length of the liquid guiding hole 11c is between 0.1mm and 10mm. For example, the length of the liquid guiding hole 11c is 0.1mm, 0.15mm, 0.2mm, 0.5mm, 1.0mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mm, 8.5mm, 8.7mm, 9.0mm, or 10.0mm, etc. Thus, the appropriate length of the liquid guiding hole 11c not only ensures that the liquid matrix from the liquid inlet surface 11g can flow to the heating surface 11e in a timely manner, but also avoids the risk of leakage.

[0101] In one embodiment, please refer to Figure 5 The air outlet channel 110a and the heating surface 11e are inclined, meaning they are not perpendicular. This allows airflow from the outside to carry away aerosols atomized at different angles, further increasing the amount of smoke.

[0102] In one embodiment, please refer to Figure 5 The electronic atomizing device includes an air intake channel 110b that communicates with the outside environment. External airflow can enter the atomization chamber 120a through the air intake channel 110b. The air intake channel 110b is inclined to the heating surface 11e, meaning it is not perpendicular to the heating surface 11e. For example, the air intake channel 110b extends along the axial direction of the electronic atomizing device. This means that external airflow flows into the atomization chamber 120a axially. Thus, when the heating area 11d faces downwards, the liquid guide holes 11c on the heating surface 11e, facing different directions, will not spray directly onto the air intake channel 110b, but rather towards the side of the air intake channel 110b. This helps reduce the direct downward spraying of atomized aerosol, thereby reducing the collision between aerosol and the airflow from the outside. It also facilitates the airflow from the outside carrying away aerosols atomized at different angles, further increasing the vapor production.

[0103] In one embodiment, please refer to Figure 5 The atomizing base 120 has an air guide channel 120b and an air vent 120e. The air guide channel 120b includes an open end 120c (i.e., Figure 5 The upper end of the schematic air guide channel 120b (which has an opening) and the closed end 120d opposite the open end 120c (i.e., Figure 5(The lower end of the illustrated air guide channel 120b) has vents 120e positioned on either side of the central axis of the air guide channel 120b along a first direction. The air guide channel 120b connects to the atomizing chamber 120a through the vents 120e and to the outlet channel 110a through the open end 120c. The first direction is perpendicular to the central axis of the air guide channel 120b. In this way, the aerosol in the atomizing chamber 120a enters the air guide channel 120b through the vents 120e, and then enters the outlet channel 110a through the open end 120c of the atomizing chamber 120a. This not only effectively utilizes space but also facilitates user operation.

[0104] Please see Figure 5 The housing 110 and the atomizing base 120 together form an air intake channel 110b, and an air outlet channel 110a connects to the top of the atomizing chamber 120a, while the air intake channel 110b connects to the bottom of the atomizing chamber 120a. That is, the air intake channel 110b is located on the bottom side of the atomizing chamber 120a, and the air outlet channel 110a is located on the top side of the atomizing chamber 120a. Optionally, one end of the air outlet channel 110a connects to the open end 120c of the air guide channel 120b shown in some of the aforementioned embodiments, and the other end of the air outlet channel 110a connects to the mouthpiece to achieve the inhalation process.

[0105] In one embodiment, there are multiple liquid inlet channels. For example, there are two liquid inlet channels. In this way, the arrangement of multiple liquid inlet channels not only facilitates the transfer of the aerosol generation matrix in the liquid storage chamber 100a to the atomizing core 10 for heating and atomization, thereby improving atomization efficiency, but also avoids the atomizing core 10 from being blocked due to blockage of any one liquid inlet channel, which would prevent the atomizing core 10 from being unable to absorb liquid and thus causing it to burn dry.

[0106] Each liquid inlet channel is symmetrically distributed along the central axis of the air outlet channel 110a. This avoids interference between the liquid inlets and outlet channels, thereby improving the smoothness of the liquid flow.

[0107] Please see Figure 1 and Figure 6 Another aspect of this application provides a method for manufacturing an atomizing core. The atomizing core 10 includes a substrate 11 and a heating element 12. The substrate 11 has a liquid guiding hole 11c and a first surface 11a and a second surface 11b disposed opposite to each other. At least a portion of the first surface 11a forms a liquid inlet surface 11g, and at least a portion of the second surface 11b forms a heating region 11d. The heating region 11d includes heating surfaces 11e facing different directions. The liquid guiding hole 11c is disposed in the substrate 11 for guiding the aerosol generating matrix from the liquid inlet surface 11g to the heating surface 11e. The heating element 12 is disposed on the heating surface 11e. The manufacturing method includes:

[0108] S100. Manufacture a reverse mold that is structurally nested with the substrate, wherein the reverse mold has a column nested with the liquid guide hole.

[0109] Please see Figures 7 to 10 The structure of the reverse mold 1 is nested with the structure of the base 11. That is to say, all the surfaces of the reverse mold 1 can coincide with all the surfaces of the base 11, and the pillars of the reverse mold 1 can be embedded in the liquid guiding holes 11c of the base 11.

[0110] The length of the column can be determined based on the length of the liquid guiding hole 11c of the substrate 11. In some embodiments, the length of the column is not less than the length of the liquid guiding hole 11c of the substrate 11. This ensures that the liquid guiding hole 11c of the final substrate 11 is a through hole.

[0111] S200, The mold frame and the mold gap, which are adapted to the contour shape of the reverse mold, are fitted together to jointly define the mold cavity.

[0112] Please see Figure 10 Here, the outline shape of the mold frame 3 is adapted to the outline shape of the reverse mold 1, so that the mold frame 3 can be fitted with the reverse mold 1 with a gap. The surface of the mold frame 3 facing the reverse mold 1 together with the reverse mold 1 forms the mold cavity.

[0113] It is understandable that a gap fit means that the outline shape of the mold frame 3 is consistent with the outline shape of the reverse mold 1, but the two have different dimensions so that the frame can fit with the reverse mold 1 with a gap. Specifically, there is a gap between the mold frame 3 and the reverse mold 1 on all surfaces of the mold frame 3 facing the reverse mold 1 so that the slurry can be in the mold cavity and thus fill the mold cavity.

[0114] For example, if the cross-section of the contour shape of the base 11 is a triangular prism, then the cross-sections of the reverse mold 1 and the mold frame 3 are both triangular. In addition, the shapes of the faces of the base 11, the reverse mold 1, and the mold frame 3 correspond one-to-one and are the same, but the volumes of the base 11, the reverse mold 1, and the mold frame 3 are different.

[0115] S300, the slurry is filled into the mold cavity to form a green embryo.

[0116] The slurry is a component of the matrix 11; for example, the slurry can be a ceramic material. The slurry is kept at a certain temperature so that it is in a flowing liquid state. When the temperature of the slurry drops below its freezing point, it becomes solid. After the slurry solidifies, it forms a green body.

[0117] S400, Process the green embryo to form the matrix.

[0118] After processing based on the condition of the embryo, matrix 11 is formed.

[0119] The manufacturing method provided in this application can be used to manufacture the atomizing core in any embodiment of this application.

[0120] In related technologies, methods such as laser induction and corrosion are required to form orderly arranged liquid guiding holes. This production method not only has high equipment costs, but also high process requirements.

[0121] The manufacturing method of this application embodiment first manufactures a reverse mold 1 that is structurally nested with the base 11, and then uses the reverse mold 1 to form the base 11 by injection molding. On the one hand, the mold is relatively simple, the production equipment cost is low, and the manufacturing process is relatively simple, which can adapt to mass production, greatly improve the product yield, reduce material loss, and increase production efficiency.

[0122] Taking ceramic as an example, S300, where the slurry fills the mold cavity to form a green body, may further include:

[0123] The slurry in the mold cavity is cured by light to form a green embryo.

[0124] This allows the ceramic slurry in the mold cavity to solidify quickly, saving curing time. For example, the ceramic slurry can be cured using ultraviolet light.

[0125] Of course, the slurry in the mold cavity can also be cured by thermosetting and / or gel curing to form a green embryo.

[0126] Understandably, if the liquid guiding hole 11c of the green preform is blocked by residual slurry, the green preform can be cleared.

[0127] In one embodiment, S400, processing the green embryo to form the matrix includes:

[0128] S410, The green embryo is sintered to form the matrix.

[0129] The green embryo is subjected to high-temperature debinding and / or sintering to form the matrix 11.

[0130] In one embodiment, the manufacturing method includes:

[0131] S500: Manufacture a master mold with the same structure as the substrate, and manufacture the reverse mold according to the master mold.

[0132] Please see Figure 10 In this embodiment, a large number of reverse molds 1 can be generated in batches using one or a small number of master molds 2. The production method of the master mold 2 is not limited; for example, the master mold 2 can be produced by drilling or other methods. The demand for the master mold 2 is small, and the processing and forming methods can be diverse, effectively controlling production costs.

[0133] In one embodiment, after sintering the green embryo to form the substrate 11, the manufacturing method includes:

[0134] S600, deposit or brush a thick film on the heating surface of the substrate to form a heating film.

[0135] For example, in one embodiment, a heating film can be deposited on the heating surface 11e of the substrate 11 by physical vapor deposition or chemical vapor deposition. Thus, a heating film is formed by depositing a film on the heating surface 11e of the substrate 11. This method allows the heating film to be tightly bonded to the heating surface 11e, reducing assembly steps. Furthermore, the thickness of the heating film can be in the micrometer or nanometer range, which not only meets the requirement of overall miniaturization of the atomizing core 10 but also saves on heating film material.

[0136] In one exemplary embodiment, a heating film is formed by brushing a conductive paste onto the heating surface 11e of the substrate 11. Specifically, the heating film is prepared by coating a conductive paste with a brush to form a thick film.

[0137] In one embodiment, the mold 1 is made of a soft material. This results in lower cost and easier processing of the mold 1; furthermore, the mold 1 is easily detached from the master mold 2 and easily separated from the green mold, minimizing damage to either the master mold 2 or the green mold. Additionally, the soft material of the mold 1 facilitates folding or bending to form the desired shape.

[0138] Soft materials include, but are not limited to, soft polymer materials. For example, soft silicone or soft resin, etc.

[0139] In one embodiment, the reverse mold 1 is a disposable sacrificial mold. A disposable sacrificial mold refers to a mold that is discarded after the production of a complete single substrate 11. In this way, the reverse mold 1 can be quickly separated from the green preform, which is convenient for operation. In addition, the disposable sacrificial mold does not have the problem of damage to the pillar due to reuse, which would lead to substandard quality of the manufactured substrate 11.

[0140] In one embodiment, manufacturing a reverse mold 1 that is structurally nested with the substrate 11 includes:

[0141] S110. First, a flexible template is formed by injection molding, wherein the flexible template includes a support plate and multiple columns set on the support plate.

[0142] In other words, the flexible template is formed by one-piece injection molding. For example, the master mold 2 serves as the mold core, and molten material is injected into the mold core to form the flexible template. A flexible template is a material that can deform under relatively small forces. The one-piece injection molding structure of the flexible template reduces assembly steps, thereby simplifying the manufacturing process.

[0143] Specifically, a hot pressing process can be used to press the melt formed by the high-temperature molten polymer material into the master mold 2. After cooling, the master mold 2 can be removed to obtain a soft template.

[0144] S120, Fold or bend the support plate to form the reverse mold.

[0145] Here, the deformation capability of the flexible template is used to fold or bend the support plate to form the three-dimensional shape of the reverse mold 1.

[0146] For example, the female mold 2 can be made of a rigid material such as metal or steel, so that the female mold 2 can be reused multiple times. The soft template can be easily detached from the female mold 2 without damaging the female mold 2.

[0147] In one embodiment, a mold frame 3 adapted to the contour shape of the reverse mold 1 and the reverse mold 1 are fitted together with a gap to jointly define the mold cavity, including:

[0148] S210, The mold frame has a receiving groove, and the anti-mold gap is fitted into the receiving groove.

[0149] Please see Figure 10 In other words, the reverse mold 1 serves as the inner mold, and the mold frame 3 serves as the outer mold, with the mold frame 3 fitting snugly around the reverse mold 1. In this case, the column faces outward, and the wall of the receiving groove faces the column and surrounds it.

[0150] In one embodiment, a mold frame 3 adapted to the contour shape of the reverse mold 1 and the reverse mold 1 are fitted together with a gap to jointly define the mold cavity, including:

[0151] The reverse mold 1 has a receiving groove, and the mold frame 3 is fitted into the receiving groove with a gap.

[0152] In other words, mold frame 3 serves as the inner mold, and reverse mold 1 serves as the outer mold, with the reverse mold 1 fitted around the outside of mold frame 3. In this case, the pillars face inwards, and the wall of the receiving groove faces the pillars and is surrounded by them.

[0153] In one embodiment, the outline of the heating region 11d is a triangular prism, with at least two sides of the prism serving as heating surfaces 11e. The cross-sectional shape of the profile of the reverse mold 1 is also a triangular prism, and each side of the reverse mold 1 corresponding to the heating surface 11e has multiple pillars. That is, the outline shape of the base 11 is consistent with the outline shape of the reverse mold 1, so that the structure of the base 11 and the reverse mold 1 can be nested. For example, the cross-sectional shape of the profile of the mold frame 3 is a triangular prism, so that the mold frame 3 can be fitted with the reverse mold 1 with a gap. It is understood that when the reverse mold 1 is an inner mold, the pillars face outwards. When the reverse mold 1 is an outer mold, the pillars face inwards.

[0154] The cross-sectional shape of the profile of the reverse mold 1 refers to the cross-sectional shape of the profile of the reverse mold 1 obtained by cutting along a plane perpendicular to the axial direction of the reverse mold 1; the cross-sectional shape of the profile of the mold frame 3 refers to the cross-sectional shape of the profile of the mold frame 3 obtained by cutting along a plane perpendicular to the axial direction of the mold frame 3.

[0155] In one embodiment, the heating region 11d has a cylindrical outline, with at least a portion of its outer surface forming the heating surface 11e. The mold 1 also has a cylindrical outline, with multiple pillars on the sides corresponding to the heating surface 11e. That is, the outline shape of the base 11 matches that of the mold 1, allowing the structure of the base 11 to be nested within the mold 1. For example, the mold frame 3 also has a cylindrical outline, allowing it to be fitted with the mold 1 with a gap. It is understood that when the mold 1 is an inner mold, the pillars face outwards. When the mold 1 is an outer mold, the pillars face inwards.

[0156] In one embodiment, the outline shape of the heating region 11d is spherical, and the heating surface 11e at least partially forms a sphere; the outline shape of the mold 1 is spherical, and the sides of the mold 1 corresponding to the heating surface 11e each have multiple pillars. That is, the outline shape of the base 11 is consistent with the outline shape of the mold 1, so that the structure of the base 11 and the mold 1 can be nested. Exemplarily, the outline shape of the mold frame 3 is also spherical, so that the mold frame 3 can be fitted with the mold 1 with a gap. It is understood that when the mold 1 is an inner mold, the pillars face outwards. When the mold 1 is an outer mold, the pillars face inwards.

[0157] Please see Figure 10 In one embodiment, the heating region 11d has a hexahedral outline, with at least a portion of its outer surface forming the heating surface 11e. The reverse mold 1 also has a hexahedral outline, and each side of the reverse mold 1 corresponding to the heating surface 11e has multiple pillars. That is, the outline shape of the base 11 matches the outline shape of the reverse mold 1, allowing the structure of the base 11 to be nested within the reverse mold 1. For example, the mold frame 3 also has a hexahedral outline, allowing the mold frame 3 to be fitted with the reverse mold 1 with a clearance.

[0158] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0159] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. An atomizing core, used in an atomizer, characterized in that, include: The substrate has liquid guiding holes and a first surface and a second surface disposed opposite to each other. At least a portion of the first surface forms a liquid inlet surface, and at least a portion of the second surface forms a heating region. The heating region includes heating surfaces facing different directions. The liquid guiding holes are disposed in the substrate for guiding the aerosol generating matrix from the liquid inlet surface to the heating surface. A heating element, wherein the heating element is disposed on the heating surface; The first surface and the second surface are parallel, at least a portion of the first surface forms a groove, the liquid inlet surface is disposed on the groove wall surface, and at least a portion of the second surface protrudes outward to form the heating area, so that the heating surface is parallel to the corresponding liquid inlet surface; The heating area has a triangular prism shape, at least two sides of the triangular prism are the heating surfaces, and the heating surfaces are inclined relative to the central axis of the atomizer.

2. The atomizing core according to claim 1, characterized in that, The outline of the heating area is cylindrical, and at least a portion of the outer surface of the cylinder is the heating surface.

3. The atomizing core according to claim 1, characterized in that, The outline of the heating area is spherical, and the heating surface at least partially constitutes the sphere.

4. The atomizing core according to claim 1, characterized in that, The diameter of the liquid guiding hole is 20μm-100μm; and / or, The porosity of the heating surface is 20%-50%; and / or, The length of the liquid guiding hole is 0.1mm-10mm.

5. The atomizing core according to claim 1, characterized in that, The outline of the heating area is parabolic, hyperboloidal, or ellipsoidal.

6. An atomizer, characterized in that, include: The liquid storage chamber is used to store the aerosol generation matrix; The atomizing core according to any one of claims 1-5, wherein the first surface of the atomizing core is in fluid communication with the liquid storage chamber.

7. The atomizer according to claim 6, characterized in that, The atomizer includes: The housing is provided with a receiving cavity and an air outlet channel; At least a portion of the structure is disposed in the receiving cavity of the atomizing seat, the top wall of the atomizing seat and the housing define the liquid storage cavity, the atomizing seat forms an atomizing cavity and at least one liquid inlet channel, the liquid inlet channel communicates between the liquid storage cavity and the atomizing core disposed in the atomizing cavity, the atomizing cavity communicates with the outside through the air outlet channel, and the aerosol generating matrix in the liquid storage cavity can be guided to the first surface through the liquid inlet channel.

8. The atomizer according to claim 7, characterized in that, The atomizer includes an air intake channel that communicates with the outside world, and the air intake channel is inclined to the heating surface.

9. An electronic atomizing device, characterized in that, It includes a power supply assembly and an atomizer as described in any one of claims 6-8, wherein the power supply assembly is electrically connected to the atomizer.

10. A method for manufacturing an atomizing core, characterized in that, The atomizing core according to any one of claims 1-5, the atomizing core comprising a substrate and a heating element, the substrate having a liquid guiding hole and a first surface and a second surface disposed opposite to each other, at least a portion of the first surface forming a liquid inlet surface, at least a portion of the second surface forming a heating area, the heating area comprising heating surfaces oriented in different directions, the liquid guiding hole being disposed in the substrate for guiding the aerosol generating matrix from the liquid inlet surface to the heating surface, at least a portion of the first surface forming a groove, the liquid inlet surface being disposed on the groove wall surface, at least a portion of the second surface protruding outward to form the heating area, such that the heating surface is parallel to the corresponding liquid inlet surface; the outline shape of the heating area is a triangular prism, at least two sides of the triangular prism being the heating surface, and the heating surface being inclined relative to the central axis of the atomizer; the heating element being disposed on the heating surface, the manufacturing method comprising: First, a flexible template is integrally injection molded, wherein the flexible template includes a support plate and a plurality of columns disposed on the support plate. The support plate is then folded or bent to form a reverse mold, wherein the reverse mold has columns nested with the liquid guiding hole. The mold frame and the mold gap, which are adapted to the contour shape of the mold, are fitted together to define the mold cavity. The slurry fills the mold cavity to form a green embryo; The embryo is processed to form the matrix.

11. The manufacturing method according to claim 10, characterized in that, The manufacturing method includes: A master mold with the same structure as the base material is manufactured, and the reverse mold is manufactured based on the master mold.

12. The manufacturing method according to claim 10, characterized in that, After sintering the green embryo to form the matrix, the manufacturing method includes: A heating film is formed by depositing or brushing a thick film onto the heating surface of the substrate.

13. The manufacturing method according to claim 10, characterized in that, The reverse mold is made of a soft material and / or the reverse mold is a disposable sacrificial mold.

14. The manufacturing method according to claim 10, characterized in that, The mold frame, which is adapted to the contour shape of the reverse mold, and the reverse mold gap are fitted together to jointly define the mold cavity, including: The mold frame has a receiving groove, and the reverse mold gap is fitted into the receiving groove.

15. The manufacturing method according to claim 10, characterized in that, The mold frame, which is adapted to the contour shape of the reverse mold, and the reverse mold gap are fitted together to jointly define the mold cavity, including: The mold has a receiving groove, and the mold frame is fitted into the receiving groove.

16. The manufacturing method according to claim 10, characterized in that, The outline of the heating area is a triangular prism, and at least two sides of the triangular prism are the heating surfaces; The cross-sectional shape of the reverse mold profile is a triangular prism, and the side of the reverse mold corresponding to the heating surface has multiple columns.

17. The manufacturing method according to claim 10, characterized in that, The outline of the heating area is cylindrical, and at least a portion of the outer surface of the cylinder is the heating surface; The outline of the reverse mold is cylindrical, and the side of the reverse mold corresponding to the heating surface has multiple columns.

18. The manufacturing method according to claim 10, characterized in that, The substrate has a spherical outline, and the heating surface at least partially constitutes the sphere. The inverted mold has a spherical outline, and each side of the inverted mold corresponding to the heating surface has multiple columns.

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