Atomizer core and manufacturing method thereof, atomizer and atomizer device

Abstract

An atomizing core and a manufacturing method thereof, an atomizer and an atomizing device, comprising a glass substrate and a heating layer; the glass substrate is provided with a plurality of micropores, the micropores penetrate the first surface and the second surface of the glass substrate and the inner diameter of the middle part is smaller than the inner diameter of the two ends; the heating layer covers part or all of the first surface of the glass substrate and is provided with an extension structure extending to the middle part or near the middle part of the inner wall of the micropore. The atomizing core of the present invention has the advantages of small volume, large amount of uniform and fine mist, environmental protection, and high reliability, and can greatly optimize the production process and reduce product costs.

Description

Technical Field

[0001] The present invention relates to the field of atomizers, and in particular to an atomizer core and a manufacturing method thereof, an atomizer and an atomization device. Background Art

[0002] Electronic cigarettes are also known as virtual cigarettes and electronic atomizers. As an alternative to cigarettes, electronic cigarettes can be used to quit smoking. Electronic cigarettes have a similar appearance and taste to cigarettes, but generally do not contain other harmful ingredients such as tar and suspended particles in cigarettes. The core component of electronic cigarette products is the atomizer that heats the electronic cigarette oil to generate aerosol. The function of the atomizer is mainly based on the atomization component; the atomization component has a porous body for absorbing and conducting the oil, and a heating element arranged on the porous body for atomizing the oil absorbed and conducted by the porous body.

[0003] Among them, the porous body is a component with capillary micropores inside, which can absorb and conduct the smoke oil through the internal micropores; the heating element has a heating part for generating heat and a conductive pin part. The heating part is used to heat and evaporate the smoke oil conducted by the porous body to form a smoke oil aerosol for inhalation.

[0004] At present, the atomization component usually adopts a porous ceramic thick film heating element, which is a porous ceramic body with micron-level pores for smoke oil absorption and conduction as a carrier. The printed heating circuit is printed on the heating element through the screen printing process. After power is turned on, the heating element atomizes the smoke oil. This porous ceramic body is usually prepared by mixing ceramic slurry with a pore-forming agent and then sintering. The sintered ceramic body has a large number of micropores, which can be used for smoke oil absorption and conduction; the overall preparation process can realize automated production, and the process stability is relatively high.

[0005] The use of porous ceramic bodies has the following problems:

[0006] 1. Sintered structures are prone to precipitate particulate matter and heavy metals at high temperatures, which can affect your health.

[0007] 2. The micropore consistency cannot be controlled and the atomization uniformity is poor.

[0008] 3. The overall volume is large and occupies a large space.

[0009] 4. The manufacturing process is traditional, the mass production process is complicated and the cost is high. Summary of the invention

[0010] The main purpose of the present invention is to overcome the above-mentioned defects in the prior art, and to propose an atomizer core and a manufacturing method thereof, an atomizer and an atomization device, which optimize the overall structure to reduce the volume, increase the amount of smoke and make it uniform and fine, greatly optimize the production process and reduce costs.

[0011] The present invention adopts the following technical solution:

[0012] An atomizing core, characterized in that: it comprises a glass substrate and a heating layer; the glass substrate is provided with a plurality of micropores, the micropores penetrate a first surface and a second surface of the glass substrate and the inner diameter of the middle part of the micropores is smaller than the inner diameter of the two ends; the heating layer covers part or all of the first surface of the glass and is provided with an extension structure extending to the middle part or close to the middle part of the inner wall of the micropores.

[0013] Preferably, the inner diameters of the two ends of the micropores range from 10 μm to 100 μm, preferably from 20 μm to 60 μm; the inner diameter of the middle of the micropores ranges from 5 μm to 80 μm; and the spacing between adjacent micropores is from 20 μm to 400 μm.

[0014] Preferably, the heating layer is one or more combinations of pure metal, metal compound, metal alloy or semiconductor material; or the heating layer is further provided with a hollow pattern, and the hollow pattern includes one or more combinations of straight lines, curves and dots.

[0015] Preferably, an electrode is further provided on the first surface of the glass substrate, and the electrode is electrically connected to the heating layer, and the electrode is a soldering pad or a soldering point.

[0016] Preferably, an electrode is further provided on the second surface of the glass substrate, and the electrode passes through the glass substrate and is electrically connected to the heating layer; or an electrode is provided on the outer side of the glass substrate, and the electrode is electrically connected to the heating layer.

[0017] An atomizer comprises a shell, the shell is provided with an air outlet channel, a liquid cavity and an air cavity; the air outlet channel is connected with the air cavity, and is characterized in that: it also comprises an atomizing core as described above, the glass substrate is fixed between the liquid cavity and the air cavity, the heating layer is opposite to the air cavity, and micropores are connected with the liquid cavity and the air cavity.

[0018] Preferably, the shell is provided with a top cover, a base and a fixed sleeve; the top cover and the base are detachably fixedly connected to form a cavity, and the top cover is provided with an air outlet channel and a liquid inlet; the fixed sleeve is fixed in the cavity and divides the cavity into a liquid cavity and an air cavity, the liquid cavity is connected with the liquid inlet, and the fixed sleeve is also provided with a guide hole connected with the liquid cavity; the glass substrate is fixed to the side of the fixed sleeve opposite to the air cavity, and the micropores are connected with the guide holes; the base is provided with a lead-out electrode, and the lead-out electrode is directly or indirectly electrically connected to the heating layer.

[0019] Preferably, the top cover is provided with a pressing piece, which presses the opposite side of the fixing sleeve; the inner wall of the base is provided with a supporting groove or a supporting piece, and the second surface of the glass substrate abuts against the supporting groove or the supporting piece.

[0020] Preferably, the base is provided with a bracket and a base body, the bracket is sleeved on the bottom of the top cover and is provided with a connecting electrode, and the connecting electrode is electrically connected to the heating layer; the base body is sleeved outside the bracket and is snap-connected to the top cover, and the base is also provided with a lead-out electrode, which is electrically connected to the contact electrode; the base and the bracket are also provided with air inlets.

[0021] Preferably, the fixing sleeve is made of ceramic or silicone material; or it also includes oil-absorbing cotton, which is installed at the bottom of the air cavity.

[0022] An atomization device includes a power supply component and a shell, characterized in that: it includes the above-mentioned atomizer, the power supply component is electrically connected to the heating layer, the shell is sleeved outside the shell and is provided with a liquid storage chamber and an air intake port, the liquid storage chamber is connected to the liquid chamber, and the air intake port is connected to the air outlet channel.

[0023] A method for manufacturing an atomizer core, characterized in that: it includes the following steps

[0024] 1) punching a plurality of microholes on the glass substrate, wherein the microholes penetrate the first surface and the second surface and the inner diameter of the middle part of the microholes is smaller than the inner diameter of the two ends;

[0025] 2) manufacturing a heating layer on the first surface of the glass substrate, wherein the heating layer is provided with a first extension structure extending to the middle or near the middle of the inner wall of the micropore;

[0026] 3) An electrode electrically connected to the heating layer is fabricated on the first surface, the second surface or the outer side of the glass substrate.

[0027] Preferably, in the step 1), when making the microhole, laser induced deformation is adopted, and then wet etching is performed to make the microhole whose inner diameter in the middle is smaller than that at both ends.

[0028] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. In the present invention, a plurality of micropores are provided on the glass substrate, and the inner diameter of the middle of the micropores is set to be smaller than or equal to the inner diameters of both ends. The heating layer is located on the first surface of the glass substrate and is provided with an extension structure extending to the middle or close to the middle of the inner wall of the micropores. This structure is used to form an atomizing core, increase the contact area between the heating layer and the liquid to be atomized to achieve rapid atomization, and enable an atomizing core of a very small volume to produce a large amount of uniform and delicate mist. The heating layer manufacturing process is simple, which can greatly optimize the production process and reduce costs.

[0030] 2. In the present invention, the heating layer can be one or more combinations of pure metals, metal compounds, metal alloys or semiconductor materials; in practical applications, in order to improve the atomization effect, a hollow pattern can also be set on the heating layer so that the liquid to be atomized is evenly heated to generate more uniform and delicate smoke.

[0031] 3. In the present invention, the first surface of the glass substrate is also provided with electrodes, and the electrodes can be set as micro-bumps, which greatly reduce the thickness of the product and improve reliability; or electrodes are set on the second surface of the glass substrate to separate the atomized surface and the electrode surface; or electrodes are set on the outer side of the glass substrate for easy mounting, simplifying the structure, greatly improving production efficiency and reducing costs.

[0032] 4. In the present invention, the shell is provided with a top cover, a base and a fixed sleeve; the fixed sleeve is fixed in the cavity and divides the cavity into a liquid cavity and an air cavity, and the fixed sleeve is also provided with a guide hole connected to the liquid cavity; the glass substrate is fixed to the side of the fixed sleeve opposite to the air cavity by adhesive, and the micropores are connected to the guide holes; the base is provided with a lead-out electrode to be directly or indirectly electrically connected to the heating layer, with fewer components, convenient assembly and small size.

[0033] 5. In the present invention, the top cover is provided with a pressing piece, and the base is provided with a supporting groove. The glass substrate and the heating layer are pressed onto the supporting groove by the pressing piece, and the base is also provided with a lead-out electrode to be in conductive contact with the electrode of the heating layer, thereby saving space, avoiding the lead structure, and thus avoiding the contact between the smoke and the lead to form condensate, being safer and more stable, simplifying the structure and enhancing the taste of the atomization device.

[0034] 6. In the present invention, the base may be provided with a support member, on which a lead-out electrode is provided. The electrode of the atomizer core is connected to the lead-out electrode by curing the conductive silver paste. The base realizes the functions of support and lead-out at the same time, thereby reducing the number of internal parts, simplifying the structure, and reducing the space of the atomizer assembly, so that an atomizer of the same size can store more liquid.

[0035] 7. In the present invention, the top cover and the base are connected by snap-fit ​​connection, which is convenient for assembly; oil-absorbing cotton is also arranged at the bottom of the base to absorb the condensate of the smoke to avoid leakage; the base can also be provided with an air inlet for introducing air, and the air inlet end of the air inlet can be higher than the bottom surface of the base to avoid leakage.

[0036] 8. In the present invention, the fixed sleeve is provided with an oil guide hole to guide the liquid to the micropores. The fixed sleeve can be made of silicone material, which is soft, high temperature resistant, low cost, and can form a smaller atomization core; the solid sleeve can also be made of ceramic material, which is high temperature resistant and corrosion resistant, and a silicone pad can be set on the outside to achieve a sealed fit with the top cover to prevent oil leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A cross-sectional view of the atomizer core of the present invention;

[0038] Figure 2 A top view of the atomizer core of the present invention;

[0039] Figure 3 This is a schematic diagram of the manufacturing process of the atomizer core of the present invention;

[0040] Figure 4 To make a schematic diagram of metal wires on the pads;

[0041] Figure 5 Schematic diagram of installing a spring clip on an electrode;

[0042] Figure 6 A schematic diagram of manufacturing electrodes on the second surface of a glass substrate;

[0043] Figure 7 Schematic diagram of making electrodes on the outside of a glass substrate;

[0044] Figure 8 is a cross-sectional view of an atomizer (Example 1);

[0045] Fig. 9 A three-dimensional diagram of the top cover;

[0046] Fig.10 is a cross-sectional view of the top cover;

[0047] Fig.11 is a top view of the top cover;

[0048] Fig.12 This is a bottom view of the top cover;

[0049] Fig.13 is a three-dimensional diagram of a fixed sleeve;

[0050] Fig.14 is a cross-sectional view of the fixed sleeve;

[0051] Fig.15 This is a schematic diagram of the connection between the fixed sleeve and the atomizer core;

[0052] Fig.16 It is a schematic diagram of another fixed sleeve structure;

[0053] Fig.17 It is a schematic diagram of the assembly of the fixed sleeve on the top cover;

[0054] Fig.18 for Fig.17 A cross-sectional view of

[0055] Fig.19 Provide a cross-sectional view of the bracket and top cover assembly;

[0056] Fig. 20 It is the front view of the seat body;

[0057] Fig.21 is a cross-sectional view of the seat body;

[0058] Fig. 22 It is a cross-sectional view of the shell;

[0059] Fig.23 is a top view of the housing;

[0060] Fig.24 It is a partial cross-sectional view of the atomization device;

[0061] Fig.25 It is a three-dimensional diagram of the fixed sleeve (Example 2);

[0062] Fig.26 for Fig.25 A cross-sectional view of

[0063] Fig. 27 This is the connection diagram between the fixed sleeve and the atomizer core;

[0064] Fig.28 Provide pictures for the top cover and fixing set;

[0065] Fig.29 for Fig.28 A cross-sectional view of

[0066] Fig.30 For fixing the sleeve on the atomizer core connection diagram (Example 3);

[0067] Fig.31 is a cross-sectional view of the base (Example 3);

[0068] Fig.32 The figure is a diagram of the assembly of the base and the fixing set (Example 3);

[0069] Fig.33 is a cross-sectional view of a fixing seat (Example 4);

[0070] Fig.34 for Fig.33 The main view;

[0071] Fig.35 Schematic diagram of the heating layer pattern Figure 1 ;

[0072] Fig.36 Schematic diagram of the heating layer pattern Figure 2 ;

[0073] in:

[0074] 10. glass substrate, 12. micropores, 13. spring clip, 20. heating layer, 21. electrode, 22. extension structure, 24. metal wire, 25. hollow pattern, 30. shell, 31. air outlet channel, 32. liquid cavity, 33. air cavity, 34. top cover, 34a. liquid inlet, 34b. pressing member, 34c. buckle, 35. base, 35a. supporting groove, 35b. air inlet, 35c. convex ring, 35d. supporting member, 35e. buckle hole, 36. fixing sleeve, 36a. guide hole, 36b. inclined surface, 36c. groove, 37. lead-out electrode, 38. bracket, 38a. connecting electrode, 39. seat, 40. oil-absorbing cotton, 50. shell, 51. liquid storage cavity, 52. air inlet, 60. silicone sleeve, 70. liquid.

[0075] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0076] The present invention is further described below through specific implementation modes.

[0077] In the present invention, the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. In the description, the directions or positional relationships indicated by "upper", "lower", "left", "right", "front", and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and are not intended to indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0078] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0079] Embodiment 1

[0080] See also Figures 1 to 7, an atomizing core, comprising a glass substrate 10 and a heating layer 20; the glass substrate 10 is provided with a plurality of micropores 12, the micropores 12 passing through the first surface and the second surface of the glass substrate 10; the heating layer 20 covers part or all of the first surface of the glass substrate 10, but does not cover the micropores 12, that is, the micropores 12 still pass through the first surface and the second surface. Wherein, the thickness of the glass substrate 10 is 200μm-600μm, preferably 450μm-550μm. The inner diameter of the middle part of the micropore 12 is less than or equal to the inner diameter at both ends, and preferably the inner diameter of the middle part is less than the inner diameter at both ends, that is, the inner diameter of the micropore 12 gradually increases from the middle part along the two ends, and it is a TGV structure (through glass via).

[0081] The plurality of micropores 12 may be uniformly or non-uniformly distributed on the entire glass substrate 10 or a part of the glass substrate 10. The uniform distribution may be in the form of an array distribution, and the non-uniform distribution may be in the form of a distribution in which the micropores are denser in some parts and sparser in some parts.

[0082] The inner diameter of the two ends of the micropore 12 ranges from 10 μm to 100 μm, preferably from 20 μm to 60 μm; the inner diameter of the middle part of the micropore ranges from 5 μm to 80 μm, preferably from 10 μm to 50 μm; the spacing between adjacent micropores is from 20 μm to 400 μm, preferably from 40 μm to 120 μm. The micropores can also be arranged to have no spacing, that is, the micropores are connected to form a continuous pore line. Figure 1 , Figure 3-Figure 8 , Fig.19 In order to better reflect the shape of the micropore 12, the size of the micropore 12 is magnified, which does not represent the actual size.

[0083] In the present invention, the heating layer 20 can be used as a resistance layer, and its material can be one or more combinations of pure metals, metal compounds, metal alloys or semiconductor materials. Pure metals can be titanium, aluminum, gold, silver, platinum, etc., metal compounds can be metal nitrides such as titanium nitride, metal oxides such as aluminum oxide, etc., metal alloys can be nickel-iron alloys, etc., and semiconductor materials can be silicon, germanium semiconductors, etc. For example, the heating layer can be titanium + aluminum + platinum, or titanium + titanium nitride, or titanium + aluminum + aluminum oxide, or semiconductor film + silicon nitride.

[0084] As required, a protective layer may be deposited outside the heating layer to protect the material of the resistance layer and prevent corrosion or oxidation of the metal layer, such as nitrides such as silicon nitride or precious metals. In order to increase the resistance area, the heating layer 20 is further provided with an extension structure 22 extending to the middle of the inner wall of the micropore 12 or close to the middle. Preferably, the extension structure 22 extends to the middle of the inner wall of the micropore 12.

[0085] Furthermore, the first surface may be provided with pads or solder joints as electrodes 21, and the solder joints may be provided as micro-bumps, and the reliability may be improved and miniaturization may be achieved by changing the shape of the electrodes 21. Figure 4A metal wire 24 may also be provided on the pad to implement subsequent wire bonding (WB process). Figure 5 The pad can also be enlarged, and a spring clip 13 can be set outside the glass substrate 10 to electrically connect with the pad, which can increase the connection reliability and reduce the manufacturing failure rate.

[0086] See also Figure 6 , as required, an electrode 21 may be provided on the second surface of the glass substrate 10, and a through hole is correspondingly provided on the glass substrate 10, through which the electrode 21 passes to be electrically connected to the heating layer 20, and the method of using the back lead of the TGV as an electrode can realize the separation of the atomized surface and the electrode 21. Figure 7 The electrode 21 can also be arranged on the outside of the glass substrate 10 and electrically connected to the heating layer 20. The electrode 21 is similar to the external pin of a discrete device and can be directly SMT mounted to the electrode end of the battery, which greatly improves production efficiency and reduces costs.

[0087] Based on this, see Figure 3 The present invention also provides a method for manufacturing an atomizer core, comprising the following steps:

[0088] 1) Punching a plurality of uniformly distributed micropores 12 on the glass substrate 10, the micropores 12 passing through the first surface and the second surface of the glass substrate 10. In this step, the inner diameter of the middle portion of the micropores 12 is smaller than the inner diameters at both ends, and the micropores 12 can be formed by firstly using laser induced deformation and then performing wet etching and punching.

[0089] 2) A heating layer 20 is formed on the first surface of the glass substrate 10. The heating layer can be divided into a thin film and a thick film: the thin film can be formed by deposition and evaporation processes; the thick film can be formed by printing and dispensing processes. The thickness of the heating layer ranges from 20 nm to 5 μm. The heating layer 20 can also include an extension structure 22, which extends along the inner wall of the micropore 12 to the middle.

[0090] 3) An electrode 21 electrically connected to the heating layer 20 is fabricated on the first surface, the second surface, or the outer side of the glass substrate 10. The electrode 21 may be a pad or a soldering point. Specifically, a pad or a soldering point may be fabricated on the first surface of the glass substrate 10. The electrode 21 may also be fabricated on the second surface of the glass substrate 10, or may also be fabricated on the side of the glass substrate 10.

[0091] See also Figure 8-Figure 24 The present invention further proposes an atomizer, including a shell 30, the shell 30 is provided with an air outlet channel 31, a liquid cavity 32 and an air cavity 33; the air outlet channel 31 is connected to the air cavity 33, and also includes the above-mentioned atomization core, the glass substrate 10 is fixed between the liquid cavity 32 and the air cavity 33, the heating layer 20 is opposite to the air cavity 33, and the micropore 12 is connected to the liquid cavity 32 and the air cavity 33.

[0092] The housing 30 is provided with a top cover 34, a base 35 and a fixing sleeve 36. The top cover 34 and the base 35 are detachably fixedly connected, and a cavity is formed between the two. The top cover 34 is provided with an air outlet channel 31 and a liquid inlet 34a. Figure 9-12 , may include two liquid inlets 34a, which are opened at the top of the top cover 34 and extend longitudinally. The air outlet channel 31 includes an air inlet end and an air outlet, the air inlet end transversely passes through the cover body, and the air outlet is formed at the top of the cover body and communicates with the air inlet end.

[0093] See also Figure 13-Figure 14 The fixing sleeve 36 is fixed in the cavity and divides the cavity into a liquid cavity 32 and an air cavity 33. A liquid cavity 32 is formed between the fixing sleeve 36 and the top cover 34. The liquid cavity 32 is connected to the liquid inlet 34a. The fixing sleeve 36 is also provided with a guide hole 36a connected to the liquid cavity 32. The liquid 70 can enter the liquid cavity 32 through the guide hole 36a through the liquid inlet 34a. An air cavity 33 is formed between the fixing sleeve 36 and the base 35. The air cavity 33 is connected to the air outlet channel 31. The liquid 70 can be tobacco oil, essential oil, water or other.

[0094] The glass substrate 10 is fixed to the side of the fixing sleeve 36 opposite to the air cavity 33, and the micropores 12 are connected to the guide holes 36a. The glass substrate 10 and the fixing sleeve 36 can be bonded by adhesive, see Fig.15 Alternatively, the glass substrate 10 and the fixing sleeve 36 are sleeved, see Fig.16 The guide hole 36a in the fixing sleeve 36 is also provided with an inclined surface 36b to guide the liquid 70 to enter the micropores 12. The area of ​​the guide hole 36a at one end opposite to the micropores 12 may be greater than or equal to the area of ​​the region where the plurality of micropores 12 are located.

[0095] In this embodiment, the fixing sleeve 36 can be made of silicone material, which is soft, high temperature resistant, low cost, and convenient for forming a smaller atomizing core. The size and shape of the fixing sleeve 36 and the glass substrate 10 can be set according to requirements and are not limited here.

[0096] Furthermore, the top cover 34 is provided with a pressing piece 34b, which presses the top edge of the fixing sleeve 36; the inner wall of the base 35 is provided with a supporting groove 35a, and the second surface of the glass substrate 10 abuts against the supporting groove 35a, that is, the fixing sleeve 36 and the glass substrate 10 are pressed between the pressing piece 34b and the supporting groove 35a.

[0097] In the present invention, the base 35 is provided with an extraction electrode 37, and the extraction electrode 37 is indirectly electrically connected to the heating layer 20. Specifically, the base 35 is provided with a bracket 38 and a seat body 39, and the bracket 38 is sleeved on the bottom of the top cover 34, and the bracket 38 is detachably connected to the top cover 34. Among them, the top cover 34 can be provided with a buckle portion 34c, and the bracket 38 is provided with a buckle hole, and the buckle portion 34c is buckled in the buckle hole to achieve a snap connection. There is also a connecting electrode 38a on the bracket 38, and the connecting electrode 38a is electrically connected to the welding point or pad of the heating layer 20. The connecting electrode 38a can be made of a metal sheet, and the connecting electrode 38a is electrically in contact with the welding point or pad. The seat body 39 is sleeved outside the bracket 38 and is also provided with an extraction electrode 37, and the extraction electrode 37 is electrically connected to the connecting electrode 38a. The base 35 and the bracket 38 are also provided with an air inlet 35 b , which is communicated with the air cavity 33 . The air inlet 35 b may be located at the side or bottom of the air cavity 33 or other suitable positions.

[0098] In this embodiment, the inner wall of the bracket 38 is provided with a support groove 35a, and the heating layer 20 of the atomizer core is physically attached to the connecting electrode 38a through the physical form of squeezing the top cover 34 and the bracket 38 to form an electrical path. This can save space, avoid the use of a lead structure that causes smoke to contact the lead to form condensate, and is safer and more stable.

[0099] Furthermore, it also includes oil-absorbing cotton 40, which is installed at the position of the air inlet 35b at the bottom of the air cavity 33 to absorb condensed liquid of the smoke to avoid leakage.

[0100] See also Figure 22-Figure 24 The present invention also proposes an atomization device, including a power supply assembly, a shell 50 and the above-mentioned atomizer, wherein the power supply assembly is electrically connected to the heating layer 20, and the shell 50 is detachably mounted outside the shell 30, and the shell 50 and the shell 30 can be connected by threaded connection, snap connection or other methods. The shell is provided with a liquid storage chamber 51 and an air inlet 52, wherein the liquid storage chamber 51 is connected to the liquid chamber 32, and the air inlet 52 is connected to the air outlet channel 31. The power supply assembly can be electrically connected to the heating layer 20 through the lead-out electrode 37 of the base 35.

[0101] Furthermore, a sealing sleeve may be sleeved on the outer periphery of the top cover 34 to seal with the outer shell, thereby forming a sealed liquid storage chamber 51 .

[0102] The atomizer and atomizing device of the present invention are described in detail in Figure 8 , Fig.24The liquid 70 is stored in the liquid storage cavity 51 of the housing 50 and is added to the liquid cavity 32 through the liquid inlet 34a. When working: the heating layer 20 on the first surface is powered on and heated, and the liquid 70 enters the micropores 12 and contacts the extension structure 22, i.e., the heating layer 20, and is heated and atomized to form mist, and the mist enters the air cavity 33, mixes with the gas in the air cavity 33, and is then discharged from the air outlet channel 31 to the air inlet 52.

[0103] Embodiment 2

[0104] An atomizer core and a manufacturing method thereof, an atomizer and an atomizer device, the main structure of which is the same as that of the first embodiment, except that: Figure 25-29 The fixing sleeve 36 is made of ceramic material, which has the advantages of high temperature resistance and corrosion resistance. The fixing sleeve 36 is also pressed between the top cover 34 and the base 35. The second surface of the glass substrate 10 is adhered to the bottom of the fixing sleeve 36 by adhesive, and the first surface of the glass substrate 10 is provided with a pad or a welding point.

[0105] Since the liquid chamber 32 is a relatively closed space, the smoke generated by the atomization core combines with the outside air and is discharged through the air outlet channel 31 of the top cover 34. The outer periphery of the glass substrate 10 and the top cover 34 is covered with a silicone sleeve 60, so that the two are tightly combined to prevent oil leakage.

[0106] Embodiment 3

[0107] An atomizer core and a manufacturing method thereof, an atomizer and an atomizer device, the main structure of which is the same as that of the second embodiment, except that:

[0108] See also Figure 30-Figure 32 In the atomizing core, an electrode 21 is disposed on the second surface of the glass substrate 10. A groove 36c is disposed on the outer periphery of the fixing sleeve 36. A convex ring 35c is disposed near the middle of the inner wall of the base 35, and the fixing sleeve 36 is supported by the groove 36c abutting against the top surface of the convex ring 35c.

[0109] In addition, the bottom surface of the protruding ring 35c is provided with an extraction electrode 37 extending to the bottom of the bracket 38, and the extraction electrode 37 is in electrical contact with the electrode 21 on the second surface of the glass substrate 10. The bottom of the base 35 is also provided with an air inlet 35b and oil-absorbing cotton 40.

[0110] Embodiment 4

[0111] See also Figure 33-Figure 34, an atomizing core and a manufacturing method thereof, an atomizer and an atomizing device, the main structure of which is the same as that of the first embodiment, except that: at least one supporting member 35d is provided in the base 35, and an extraction electrode 37 is provided in the supporting member 35d, and the extraction electrode 37 can be an electrode nail. The atomizing core is fixed to the top of the supporting member 35d, that is, the pad or welding point on the first surface of the glass substrate 10 is connected to the extraction electrode 37 at the top of the supporting member 35d by curing the conductive silver paste, and the support and electrical connection can also be achieved simultaneously by physical extrusion and other methods.

[0112] In this embodiment, the base 35 is provided with a buckle hole 35e near the top to be snap-connected with the top cover 34, and the bottom is also provided with an air inlet 35b and oil-absorbing cotton 40, wherein the end of the air inlet 35b connected to the air cavity 33 is higher than the bottom surface of the base 35 to prevent leakage. The support member 35d can be columnar, annular, block-shaped, etc., or a metal spring, etc., and the number can be set according to actual conditions and is not limited here.

[0113] The structure of this embodiment can reduce the number of parts inside the atomizing device, omit the lead wire part to make it safer and more stable, compress the space to increase the liquid storage capacity, simplify the process and reduce the cost.

[0114] Embodiment 5

[0115] An atomizer core and a manufacturing method thereof, an atomizer and an atomizer device, the main structure of which is the same as that of the first embodiment, except that: in order to improve the temperature uniformity of the atomizer core when it is working and increase the temperature peak of the heating layer 20, the heating layer 20 is also provided with a hollow pattern 25, and the hollow pattern 25 includes one or more combinations of straight lines, curves and points. In practical applications, in order to make heating more uniform and improve the atomization effect, the hollow pattern is designed with micropores as the core nodes.

[0116] See also Fig.35 The hollow pattern 25 on the heating layer 20 is a combination of straight lines and dots, that is, except for the micropores 12 in the figure, the straight lines and dots are hollowed out. The straight lines and dots are linearly spaced and can be located between two adjacent rows of micropores, which can balance the heating temperature in the horizontal direction.

[0117] See also Fig.36 The hollow pattern 25 on the heating layer 20 is a combination of a curve and a straight line, the straight line extends in the horizontal direction or the vertical direction, the curve is connected between the straight lines in the horizontal direction and the vertical direction, and the hollow pattern 25 can be arranged to surround the middle of the glass substrate 10. Since the temperature of the central area of ​​the heating layer 20 is high and the temperature of the edge area is low when the heating layer 20 is working, the heating layer 20 in the middle of the glass substrate 10 is arranged to be non-hollowed, and the surrounding of the middle is arranged to have a hollow pattern 25, which can reduce the heat generation of the middle part and increase the heat generation of the surrounding area.

[0118] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. An atomizer core, characterized in that: It comprises a glass substrate and a heating layer; the glass substrate is provided with a plurality of micropores, the micropores penetrate the first surface and the second surface of the glass substrate and the inner diameter of the middle part is smaller than the inner diameter of the two ends; the heating layer covers part or all of the first surface of the glass and is provided with an extension structure extending to the middle part or close to the middle part of the inner wall of the micropores.

2. The atomizer core according to claim 1, characterized in that: The inner diameters of the two ends of the micropores range from 10 μm to 100 μm; the inner diameter of the middle of the micropores ranges from 5 μm to 80 μm; and the spacing between adjacent micropores ranges from 20 μm to 400 μm.

3. The atomizer core according to claim 1, characterized in that: The heating layer is one or more combinations of pure metal, metal compound, metal alloy or semiconductor material; or the heating layer is further provided with a hollow pattern, and the hollow pattern includes one or more combinations of straight lines, curves and dots.

4. The atomizer core according to claim 1, characterized in that: The first surface of the glass substrate is also provided with an electrode, which is electrically connected to the heating layer and is a soldering pad or a soldering point.

5. The atomizer core according to claim 1, characterized in that: The second surface of the glass substrate is further provided with an electrode, which passes through the glass substrate and is electrically connected to the heating layer; or an electrode is provided on the outer side of the glass substrate, and the electrode is electrically connected to the heating layer.

6. An atomizer, comprising a housing, the housing being provided with an air outlet channel, a liquid cavity and an air cavity; the air outlet channel being in communication with the air cavity, characterized in that: It also includes an atomizer core according to any one of claims 1 to 5, wherein the glass substrate is fixed between the liquid cavity and the air cavity, the heating layer is opposite to the air cavity, and the micropores connect the liquid cavity and the air cavity.

7. An atomizer according to claim 6, characterized in that: The shell is provided with a top cover, a base and a fixed sleeve; the top cover and the base are detachably fixedly connected to form a cavity, and the top cover is provided with an air outlet channel and a liquid inlet; the fixed sleeve is fixed in the cavity and divides the cavity into a liquid cavity and an air cavity, the liquid cavity is connected with the liquid inlet, and the fixed sleeve is also provided with a guide hole connected with the liquid cavity; the glass substrate is fixed on the side of the fixed sleeve opposite to the air cavity, and the micropores are connected with the guide holes; the base is provided with a lead-out electrode, and the lead-out electrode is directly or indirectly electrically connected with the heating layer.

8. An atomizer according to claim 7, characterized in that: The top cover is provided with a pressing piece, which presses the opposite side of the fixing sleeve; the inner wall of the base is provided with a supporting groove or a supporting piece, and the second surface of the glass substrate abuts against the supporting groove or the supporting piece.

9. An atomizer according to claim 7, characterized in that: The base is provided with a bracket and a base body. The bracket is sleeved on the bottom of the top cover and is provided with a connecting electrode, which is electrically connected to the heating layer; the base body is sleeved outside the bracket and is snap-connected to the top cover, and the base is also provided with a lead-out electrode, which is electrically connected to the contact electrode; the base and the bracket are also provided with air inlets.

10. An atomizer according to claim 7, characterized in that: The fixing sleeve is made of ceramic or silicone material; or it also includes oil-absorbing cotton, which is installed at the bottom of the air cavity.

11. An atomizing device, comprising a power supply assembly and a housing, characterized in that: An atomizer comprising any one of claims 6 to 10, wherein the power supply assembly is electrically connected to the heating layer, the outer shell is sleeved outside the shell and is provided with a liquid storage chamber and an air intake port, the liquid storage chamber is connected to the liquid chamber, and the air intake port is connected to the air outlet channel.

12. A method for manufacturing an atomizer core, characterized in that: Includes the following 1) drilling a plurality of micro-holes on the glass substrate, wherein the micro-holes penetrate the first surface and the second surface and the inner diameter of the middle part of the micro-holes is smaller than the inner diameter of the two ends; 2) manufacturing a heating layer on the first surface of the glass substrate, wherein the heating layer is provided with a first extension structure extending to the middle or near the middle of the inner wall of the micropore; 3) An electrode electrically connected to the heating layer is fabricated on the first surface, the second surface or the outer side of the glass substrate.

13. A method for manufacturing an atomizer core according to claim 12, characterized in that: In the step 1), when making the microhole, laser-induced deformation is adopted, and then wet etching is performed to make the microhole with a middle inner diameter smaller than that at both ends.

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