Atomizing core, atomizer and atomizing device

Abstract

The application provides an atomizing core, an atomizer and an atomizing device. The atomizing core comprises an atomizing tube, a heating element and a liquid guide, the atomizing tube has a liquid inlet, the heating element is arranged in the atomizing tube, and the heating element comprises a heating part and a pin part connected with each other; the liquid guide is connected between the atomizing tube and the heating element, the liquid guide is a hollow tubular structure, an inner surface of the liquid guide defines an atomizing channel and a boss part, and the pin part is at least partially fixedly connected to the boss part. The atomizing core provided by the application improves the stability of the atomizing core by arranging the liquid guide between the atomizing tube and the heating element and guiding the atomizing substrate to the heating element by the liquid guide.

Description

Technical Field

[0001] This application relates to the field of atomization technology, specifically to an atomizing core, atomizer, and atomizing device. Background Technology

[0002] An atomizing device is a device that heats a stored atomizable medium to form an aerosol. The atomizing coil is a key component of the atomizing device, used to heat the atomizing matrix to form an aerosol. Existing atomizing coils typically consist of a heating wire and a liquid-guiding cotton wrapped around the heating wire. The liquid-guiding cotton is assembled into the atomizing tube. However, the assembly process is difficult, the liquid-guiding cotton can easily become too loose or too tight, and the heating wire is prone to deformation, making the atomizing coil less stable. Utility Model Content

[0003] The main technical problem addressed by this application is to provide an atomizing core, atomizer, and atomizing device to improve the stability of the atomizing core.

[0004] The main technical problem solved by this application is to provide an atomizing core, comprising: an atomizing tube having a liquid inlet; a heating element disposed inside the atomizing tube, the heating element including a heating part and a lead part connected together; and a liquid guiding element connected between the atomizing tube and the heating element, the liquid guiding element being hollow tubular, the inner surface of the liquid guiding element defining an atomizing channel and a boss part, the lead part being at least partially fixedly connected to the boss part.

[0005] According to one embodiment of this application, an air outlet is provided downstream of the air inlet of the atomizing channel, and the protrusion is formed upstream of the air inlet of the liquid guide and is arranged circumferentially along the atomizing channel.

[0006] According to one embodiment of this application, the atomizing core is integrally formed from the atomizing tube, the heating element, and the liquid guiding element.

[0007] According to one embodiment of this application, the heating element is at least partially embedded in the side wall of the atomizing channel.

[0008] According to one embodiment of this application, at least a portion of the outer sidewall of the liquid guiding member is in contact with the inner sidewall of the atomizing tube.

[0009] According to one embodiment of this application, the liquid guiding member is provided with a protrusion, which is inserted into the liquid inlet.

[0010] According to one embodiment of this application, the porosity of the liquid guiding element is 50% to 70%.

[0011] According to one embodiment of this application, the average pore size of the liquid guiding element is 13nm to 20nm.

[0012] This application embodiment also provides an atomizer, the atomizer including the atomizing core described in the above embodiment, the atomizer further including a liquid storage chamber for storing atomizing matrix, the atomizing core being at least partially disposed in the liquid storage chamber, and the liquid guiding member for guiding the atomizing matrix in the liquid storage chamber to the heating element.

[0013] This application also provides an atomizing device, which includes the atomizer described in the above embodiments. The atomizing device also includes a power supply component for supplying power to the atomizer.

[0014] The atomizing core, atomizer, and atomizing device provided in this application have a liquid guiding component between the atomizing tube and the heating element. The liquid guiding component guides the atomizing matrix to the heating element, eliminating the need for a liquid guiding cotton structure. This makes the structure of the atomizing core simpler. The heating element, atomizing core, and atomizing tube are fixedly connected, making the structure of the atomizing core more stable and improving its service life. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the atomizing core of this application;

[0017] Figure 2 yes Figure 1 A cross-sectional schematic diagram of the atomizing core shown;

[0018] Figure 3 yes Figure 1 The diagram shows the exploded structure of the atomizing core.

[0019] Figure 4 yes Figure 1 A schematic diagram of the liquid guiding component of the atomizing core shown;

[0020] Figure 5 yes Figure 4 A schematic cross-sectional view of the fluid guiding component shown.

[0021] Figure 6 This is a schematic diagram of the structure of an embodiment of the atomizer of this application;

[0022] Figure 7 yes Figure 6 A cross-sectional schematic diagram of the atomizer shown;

[0023] Figure 8This is a schematic diagram of the structure of an embodiment of the atomizing device of this application;

[0024] Figure 9 This is a schematic diagram of the structure of an embodiment of the mold of this application;

[0025] Figure 10 yes Figure 9 A cross-sectional schematic diagram of the mold shown;

[0026] Figure 11 This is a schematic flowchart of an embodiment of the preparation method of this application;

[0027] Figure 12 This is a schematic flowchart of another embodiment of the preparation method of this application.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] Atomizing core 10, atomizing tube 110, liquid inlet 1101, heating element 120, heating part 121, pin part 122, liquid guide part 130, atomizing channel 1301, air outlet 1302, air inlet 1303, protrusion 131, boss part 132, atomizer 20, electrode part 210, nozzle 220, air guide tube 230, liquid storage tank 240, power supply assembly 30, mold 40, receiving groove 401, filling hole 402, through hole 403, forming groove 404, first cylinder 410, second cylinder 420, first cylinder body 421, second cylinder body 422, second connecting part 423, first connecting part 430. Detailed Implementation

[0030] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0031] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] In existing atomizer coils, the atomizing tube and heating wire are separate components. They require assembly with the heating wire and wicking material to be joined with the atomizing tube to form a finished atomizer coil. Because the wicking material has a certain thickness tolerance, the heating wire has a planar structure, and the metal atomizing tube is closed, assembly is difficult. The wicking material can easily become too loose or too tight, and the heating wire is prone to deformation. This leads to atomizer coil instability, poor atomization life, and leakage problems.

[0034] This application provides an atomizing core 10, such as... Figures 1 to 3As shown, the atomizing core 10 includes an atomizing tube 110, a heating element 120, and a liquid guiding element 130. The atomizing tube 110 has a liquid inlet 1101; the heating element 120 is disposed inside the atomizing tube 110; the liquid guiding element 130 is connected between the atomizing tube 110 and the heating element 120, and is used to guide the atomizing matrix outside the atomizing tube 110 to the heating element 120, and the heating element 120 is used to heat the atomizing matrix to form an aerosol; wherein, the heating element 120 and the liquid guiding element 130 are fixedly connected, and the liquid guiding element 130 and the atomizing tube 110 are fixedly connected. The atomizing core 10 in this application eliminates the liquid guiding cotton structure, and by setting the liquid guiding element 130 between the heating element 120 and the atomizing tube 110, the liquid guiding element 130 is used to guide the atomizing matrix, making the liquid guiding process more stable and reliable. The liquid guiding component 130 is made of ceramic material, which has a certain degree of hardness and is difficult to deform, making the connection between the heating element 120, the liquid guiding component 130, and the atomizing tube 110 more stable and reliable, which is beneficial to improving the stability of the atomizing core 10. At the same time, the ceramic material has a more stable adsorption effect on the atomizing matrix, which can improve the leakage prevention performance of the atomizing core 10.

[0035] In some embodiments, the heating element 120 includes a heating portion 121 and a pin portion 122 connected to each other, the liquid guiding element 130 is a hollow tube, the inner surface of the liquid guiding element 130 defines an atomizing channel 1301 and a boss portion 132, and the pin portion 122 is at least partially fixedly connected to the boss portion 132.

[0036] In some embodiments, the pin portion 122 is inserted into the boss portion 132, and the portion of the pin portion 122 corresponding to the boss portion 132 is completely covered in the circumferential direction by the liquid guide 130, making the connection between the pin portion 122 and the liquid guide 130 more stable. Moreover, ceramic is an insulating material, which can effectively prevent short circuit problems in the pin portion 122.

[0037] In some embodiments, such as Figure 5 As shown, an air outlet 1302 is provided downstream of the air inlet of the atomizing channel 1301, and a boss 132 is formed upstream of the air inlet of the liquid guide 130 and is arranged along the circumference of the atomizing channel 1301. The boss 132 is located at the end of the liquid guide 130 away from the air outlet 1302.

[0038] In some embodiments, the boss portion 132 has a continuous annular structure. In some other embodiments, the number of boss portions 132 may also be multiple, and the multiple boss portions 132 are arranged at intervals along the circumference of the atomizing channel 1301. Specifically, the number of boss portions 132 may be two, and the two boss portions 132 are respectively used to fix the two pin portions 122.

[0039] In some embodiments, such as Figure 2 and Figure 3As shown, the heating element 121 is located between the air outlet 1302 and the boss portion 132. The heating element 121 is used to heat the atomizing matrix to form an aerosol, which can be discharged from the air outlet 1302 along the atomization channel 1301. The boss portion 132 can limit the position of the heating element 121, so that the heating element 120 will not detach from the end of the atomization channel 1301 near the boss portion 132. At the same time, the boss portion 132 can absorb condensate or atomizing matrix liquids sliding down the atomization channel 1301, preventing liquid leakage from the atomizing core 10.

[0040] In some embodiments, the boss portion 132 surrounds an air inlet 1303, the cross-sectional area of ​​the air inlet 1303 being smaller than the cross-sectional area of ​​the air outlet 1302.

[0041] In some embodiments, the atomizing core 10 is integrally formed from the atomizing tube 110, the heating element 120 and the liquid guiding element 130, and the atomizing core 10 is an integral structure that cannot be separated.

[0042] In some embodiments, ceramic slurry can be injected between the atomizing tube 110 and the heating element 120, and then the ceramic slurry can be solidified and sintered to form a liquid guiding element 130, so that the heating element 120 and the liquid guiding element 130 are fixedly connected, and the liquid guiding element 130 and the atomizing tube 110 are fixedly connected.

[0043] In some other embodiments, the heating element 120 and the liquid guiding element 130, as well as the liquid guiding element 130 and the atomizing tube 110, can also be fixedly connected by means of bonding, snap-fitting, etc.

[0044] In some embodiments, the heating element 120 is at least partially embedded in the side wall of the atomizing channel 1301, that is, the heating element 120 is at least partially embedded in the inner side wall of the liquid guiding element 130.

[0045] In some embodiments, the heating element 120 may be partially embedded in the sidewall of the atomizing channel 1301 or the heating element 120 may be entirely embedded in the sidewall of the atomizing channel 1301. The heating element 120 and the liquid guiding element 130 may be co-molded so that the heating element 120 is embedded in the liquid guiding element 130.

[0046] In some embodiments, the outer surface of the heating element 120 and the inner sidewall of the liquid guide 130 are in contact, that is, the outer surface of the heating element 120 and the inner sidewall of the liquid guide 130 are tangent. The heating element 120 squeezes the inner sidewall of the liquid guide 130 by the elastic force generated by its own deformation, so that the heating element 120 is fixed to the liquid guide 130.

[0047] In some embodiments, at least a portion of the outer sidewall of the liquid guide 130 is in contact with the inner sidewall of the atomizing tube 110.

[0048] In some embodiments, the liquid guiding element 130 is sleeved on the heating element 120, and the atomizing tube 110 is sleeved on the liquid guiding element 130. The outlines of the atomizing tube 110 and the liquid guiding element 130 are generally cylindrical.

[0049] In some other embodiments, the outlines of the atomizing tube 110 and the liquid guiding element 130 may also be generally in the shape of a frustum, prismatic, or polygonal prism.

[0050] In some embodiments, such as Figure 3 and Figure 4 As shown, the atomizing tube 110 is provided with a liquid inlet 1101, and the liquid guiding component 130 is provided with a protrusion 131, which is inserted into the liquid inlet 1101.

[0051] In some embodiments, the liquid guiding element 130 is a porous ceramic containing a large number of micropores. These micropores adsorb the atomizing matrix through capillary action and surface tension, and guide the atomizing matrix to the surface of the heating element 120, ensuring the stability of the atomization process.

[0052] In some embodiments, the protrusion 131 fills the liquid inlet 1101, and the shape of the protrusion 131 is adapted to the shape of the liquid inlet 1101. The protrusion 131 fits against the inner sidewall of the liquid inlet 1101 in the circumferential direction. The protrusion 131 can guide the atomizing matrix outside the atomizing tube 110 to the heating element 120. The protrusion 131 filling the liquid inlet 1101 allows the liquid guiding element 130 to directly contact the atomizing matrix outside the atomizing tube 110, effectively preventing the formation of air bubbles in the liquid inlet 1101 and avoiding blockage of the liquid inlet 1101 by air bubbles. This makes the flow of the atomizing matrix smoother and more stable, thereby enhancing the liquid guiding efficiency.

[0053] In some embodiments, the surface of the protrusion 131 on the side away from the atomizing channel 1301 is flush with the outer surface of the atomizing tube 110, and the shape of the protrusion 131 may be the same as the shape of the liquid inlet 1101.

[0054] In some embodiments, the protrusion 131 protrudes at least partially from the liquid inlet 1101, that is, the protrusion 131 is at least partially located on the outside of the atomizing tube 110.

[0055] In some embodiments, the protrusion 131 and the liquid inlet 1101 form a snap-fit ​​engagement in the extending direction of the atomizing tube 110. The protrusion 131 can, on the one hand, contact the atomizing matrix on the outside of the atomizing tube 110 to guide the atomizing matrix to the heating element 120 on the inside of the liquid guide 130; on the other hand, the protrusion 131 can snap-fit ​​with the liquid inlet 1101, making the connection between the atomizing tube 110 and the liquid guide 130 more secure and less prone to separation.

[0056] In some embodiments, a protrusion 131 is provided on the outer side wall of the liquid guide 130, and the shape of the protrusion 131 is adapted to the shape of the liquid inlet 1101, and the protrusion 131 is embedded in the liquid inlet 1101.

[0057] In some embodiments, the number of protrusions 131 can be one or more, and the number of liquid inlets 1101 is the same as the number of protrusions 131.

[0058] In some embodiments, there are multiple protrusions 131, and the multiple protrusions 131 are arranged circumferentially around the liquid guide 130. There are multiple liquid inlets 1101, and the positions of the liquid inlets 1101 correspond one-to-one with the positions of the protrusions 131.

[0059] In some embodiments, the number of protrusions 131 can be 1, 2, 4, 5, 8, or any value between the above numbers.

[0060] In some embodiments, the porosity of the liquid guiding component 130 is 50% to 70%. Specifically, the porosity of the liquid guiding component 130 is 50%, 55%, 56.5%, 60%, 66.8%, 70%, or any value between these porosities. The higher the porosity of the porous ceramic, the more liquid can be stored inside the material, resulting in better liquid guiding performance. However, excessively high porosity can lead to a decrease in the mechanical strength of the liquid guiding component 130, making it prone to breakage. This application limits the porosity of the liquid guiding component 130 to 50% to 70%, which ensures both the liquid guiding effect and the strength of the liquid guiding component 130, making the connection structure between the liquid guiding component 130, the heating element 120, and the atomizing tube 110 more stable.

[0061] In some embodiments, the average pore size of the liquid guiding element 130 is 13 nm to 20 nm. Specifically, the average pore size of the liquid guiding element 130 is 13 nm, 14.8 nm, 15 nm, 15.6 nm, 16 nm, 16.5 nm, 16.8 nm, 20 nm, or any value between these average pore sizes. Increasing the pore size of porous ceramics can improve the liquid conduction rate; the larger the pore size, the smoother the path for liquid molecules, and the significantly higher the liquid conduction rate. However, excessively large pore sizes can lead to leakage risks, causing leakage of the atomization matrix, and can also reduce the strength of the liquid guiding element 130. In this application, the pore size of the liquid guiding element 130 is limited to 14.8 nm to 16.8 nm, which can meet the liquid conduction rate requirements of the liquid guiding element 130 while avoiding leakage and ensuring the strength of the liquid guiding element 130.

[0062] In some embodiments, the heating element 120 is made of metal or a metal alloy. The heating element 120 can be a heating wire or heating mesh made of materials such as nickel, titanium, iron-chromium-aluminum, stainless steel, or nickel-chromium alloy. Specifically, the heating element 120 can be a steel mesh structure.

[0063] In some embodiments, the atomizing tube 110 is made of metal or a metal alloy. The atomizing tube 110 can be made of materials such as stainless steel, copper alloy, titanium alloy, nickel-based alloy, aluminum and aluminum alloy.

[0064] This application embodiment also provides an atomizer 20, such as Figure 6 and Figure 7 As shown, the atomizer 20 includes the atomizing core 10 of the above embodiment. The atomizer 20 also includes a liquid storage chamber 240 for storing the atomizing matrix. The atomizing core 10 is at least partially disposed in the liquid storage chamber 240. The liquid guide 130 is used to guide the atomizing matrix in the liquid storage chamber 240 to the heating element 120.

[0065] In some embodiments, the inlet 1101 of the atomizing tube 110 is connected to the storage tank 240. The protrusion 131 inserted into the inlet 1101 can directly contact the atomizing matrix in the storage tank 240 to adsorb the atomizing matrix and guide it into the atomizing tube 110. By guiding the atomizing matrix through the liquid guide 130, the condensate formed during the use of the atomizer 20 can be prevented from flowing back into the storage tank 240, thus preventing the atomizing matrix from deteriorating.

[0066] In some embodiments, the atomizing tube 110 further includes a liquid storage component 250 disposed between the protrusion 131 and the liquid storage chamber 240. The liquid storage component 250 is disposed around the atomizing tube 110 and covers the protrusion 131. The liquid storage component 250 can be used to store the atomizing matrix and can guide the atomizing matrix in the liquid storage chamber 240 to the protrusion 131. At the same time, the liquid storage component 250 can play a role in preventing leakage.

[0067] In some embodiments, the liquid storage component 250 can be a porous material with liquid adsorption properties, such as liquid storage cotton.

[0068] In some embodiments, the atomizer 20 is provided with a mouthpiece 220 and an air guide tube 230. The atomization channel 1301 is connected to the mouthpiece 220 through the air guide tube 230 so as to discharge the aerosol formed in the atomization channel 1301 from the mouthpiece 220.

[0069] In some embodiments, the air guide tube 230 is connected to the end of the atomizing tube 110 away from the boss portion 132. The air guide tube 230 is inserted into the atomizing tube 110. The boss portion 132 is annular in shape and surrounds the air inlet 1303. The inner diameter of the air guide tube 230 is larger than the diameter of the air inlet 1303, so that the condensate formed at the mouthpiece 220 can be received by the boss portion 132 as it slides down the air guide tube 230. This prevents the condensate from directly seeping out of the atomizing core 10 through the air inlet 1303 and avoids the condensate from contacting the electrical connection structure of the atomizer 20, thus preventing a short circuit risk.

[0070] This application also provides an atomizing device, such as... Figure 8 As shown, the atomizing device includes the atomizer 20 of the above embodiment, and also includes a power supply component 30 for supplying power to the atomizer 20. The power supply component 30 can be electrically connected to the electrode 210 at the bottom of the atomizer 20 to supply power to the heating element 120.

[0071] This application also provides a preparation method, such as... Figure 11 As shown, the preparation method is used to manufacture the atomizing core 10 of the above embodiment. The preparation method includes:

[0072] Step S100: Place the heating element 120 inside the atomizing tube 110.

[0073] Step S200: Inject ceramic slurry between the heating element 120 and the atomizing tube 110.

[0074] Step S300: The ceramic slurry is solidified and sintered to obtain the liquid guiding component 130, so that the heating element 120 and the liquid guiding component 130 are fixedly connected, and the liquid guiding component 130 and the atomizing tube 110 are fixedly connected.

[0075] In some embodiments, the process of solidifying and sintering a ceramic slurry to obtain a liquid guiding component 130 includes: first solidifying the ceramic slurry to form a ceramic green body, and then sintering the ceramic green body to form the liquid guiding component 130.

[0076] In some embodiments, the ceramic green body can be formed by heating. The liquid guiding component 130 can be obtained by debinding and sintering the ceramic green body.

[0077] In some embodiments, such as Figure 9 , Figure 10 and Figure 12 As shown, step S100 includes:

[0078] Step S110: Place the atomizing tube 110 in the receiving groove 401 of the mold 40, so that the outer wall of the atomizing tube 110 and the inner wall of the first cylinder 410 of the mold 40 are in contact.

[0079] In some embodiments, the mold 40 includes a first cylinder 410, a second cylinder 420 and a first connecting portion 430, the second cylinder 420 being disposed inside the first cylinder 410, the first connecting portion 430 being connected between the first cylinder 410 and the second cylinder 420, and the receiving groove 401 being formed by the first cylinder 410, the second cylinder 420 and the first connecting portion 430.

[0080] In some embodiments, the shape of the first cylinder 410 is adapted to the outer contour of the atomizing tube 110, the shape of the second cylinder 420 is adapted to the shape of the inner sidewall of the liquid guide 130, the shape of the first connecting portion 430 is annular, the outer circles of the first cylinder 410 and the first connecting portion 430 are connected, and the inner circles of the second cylinder 420 and the first connecting portion 430 are connected.

[0081] Step S120: Place the heating element 120 in the receiving groove 401 so that the heating element 120 and the outer side wall of the second cylinder 420 of the mold 40 are in contact.

[0082] In some embodiments, the heating element 120 includes a heating portion 121 and a lead portion 122 connected together. The heating portion 121 can be a heating mesh, bent into a cylindrical shape, and the heating portion 121 can be arranged around the second cylinder 420. When ceramic slurry is injected between the heating element 120 and the atomizing tube 110, the heating element 120 is at least partially inserted into the ceramic slurry. When the ceramic slurry solidifies and sinters to form a liquid guiding element 130, the heating element 120 is embedded in the liquid guiding element 130 and is tightly connected to the liquid guiding element 130.

[0083] In some embodiments, the first connecting portion 430 is provided with a through hole 403. When the heating element 120 is placed in the receiving groove 401, the pin portion 122 can be inserted into the through hole 403, and at least a portion of the pin portion 122 extends out of the mold 40. The pin portion 122 is used to electrically connect with the electrode 210 of the atomizer 20 so that the power supply assembly 30 can supply power to the heating element 120 through the electrode 210.

[0084] In some embodiments, the liquid guiding element 130 is an insulating material with a certain strength, the heating element 121 is embedded in the liquid guiding element 130, and the positive and negative electrode pins 122 extending from the heating element 121 are separated by an insulating ceramic material. Therefore, the pins 122 can be bare wires, without insulation and without the risk of short circuit, which can reduce the manufacturing process and improve the preparation efficiency of the atomizing core 10.

[0085] In some embodiments, the through hole 403 can serve a positioning function during the placement of the heating element 120 in the receiving groove 401. The cross-sectional dimensions of the pin portion 122 are adapted to the cross-sectional dimensions of the through hole 403, and the pin portion 122 can be embedded in the through hole 403 so that there is no gap between the pin portion 122 and the sidewall of the through hole 403, thereby preventing ceramic slurry leakage.

[0086] In some embodiments, step S200 includes:

[0087] Step S210: Inject ceramic slurry into the receiving tank 401 through the injection hole 402 of the first cylinder 410 and the liquid inlet 1101 of the atomizing tube 110, so that the ceramic slurry fills the space between the first cylinder 410 and the atomizing tube 110 and the liquid inlet 1101.

[0088] In some embodiments, the height of the ceramic slurry filling the space is less than or equal to the height of the second cylinder 420, and the height of the liquid guiding component 130 of the formed atomizing core 10 is less than the height of the atomizing tube 110.

[0089] In some embodiments, the heating element 121 attached to the second cylinder 420 is covered with ceramic slurry, and the liquid inlet 1101 of the atomizing tube 110 is filled with ceramic slurry. After the ceramic slurry is sintered to form a liquid guiding element 130, the heating element 121 is embedded in the liquid guiding element 130, and the protrusion 131 of the liquid guiding element 130 is embedded in the liquid inlet 1101, so that the heating element 120 and the atomizing tube 110 are fixedly connected to the liquid guiding element 130 and cannot be separated. At the same time, the co-firing of the atomizing tube 110, the liquid guiding element 130 and the heating element 120 enhances the adhesion between the atomizing tube 110 and the liquid guiding element 130, as well as between the liquid guiding element 130 and the heating element 120, further improving the connection strength. This application forms the atomizing core 10 by integrally molding the atomizing tube 110, the liquid guiding component 130 and the heating component 120, which makes the structure of the atomizing core 10 simple, has high strength and can effectively improve the stability of the atomizing core 10.

[0090] In some embodiments, the injection port 402 and the liquid inlet 1101 are connected, and the positions of the injection port 402 and the liquid inlet 1101 correspond to each other. The number of liquid inlets 1101 can be one or more, and the number of injection ports 402 can be one, with at least one liquid inlet 1101 corresponding to the position of the injection port 402, allowing ceramic slurry to be injected into the atomizing tube 110 through the injection port 402 and the liquid inlet 1101. Injecting ceramic slurry from the liquid inlet 1101 on the side of the atomizing tube 110, compared to injecting ceramic slurry directly from the opening above the atomizing tube 110, can more effectively expel air from the space between the first cylinder 410 and the atomizing tube 110. Simultaneously, side injection avoids the problem of uneven local pressure caused by gravity accumulation of ceramic slurry during top injection, resulting in a more uniform distribution of ceramic slurry and reducing thickness unevenness or void defects caused by flow differences.

[0091] In some other embodiments, the number of injection holes 402 may also be multiple, so that ceramic slurry can be injected from multiple injection holes 402 at the same time, thereby improving efficiency.

[0092] In some embodiments, the cross-sectional area of ​​the injection hole 402 is less than or equal to the cross-sectional area of ​​the liquid inlet 1101, so as to facilitate the injection of ceramic slurry and avoid the ceramic slurry being blocked by the outer wall of the atomizing tube 110.

[0093] In some embodiments, the second cylinder 420 includes a first cylinder 421, a second cylinder 422, and a second connecting portion 423. The first cylinder 421 is located at the end of the second cylinder 422 away from the first connecting portion 430. The second connecting portion 423 connects the first cylinder 421 and the second cylinder 422, and the first connecting portion 430 connects the second cylinder 422 and the first cylinder 410. The cross-sectional area of ​​the first cylinder 421 is larger than that of the second cylinder 422, and the cross-sectional area of ​​the first cylinder 410 is larger than that of the first cylinder 421.

[0094] In some embodiments, a molding groove 404 is formed around the first connecting portion 430, the second cylinder 422, and the second connecting portion 423. When the ceramic slurry is injected into the receiving groove 401, the ceramic slurry fills the molding groove 404 so that when the ceramic slurry is solidified and sintered to form the liquid guiding component 130, the protrusion 132 of the liquid guiding component 130 is formed in the molding groove 404. The heating portion 121 of the heating element 120 is attached to the first cylinder 421. The side of the heating portion 121 facing the first cylinder 421 may not be covered by the ceramic slurry. By providing the molding groove 404, the surrounding structure of the part of the pin portion 122 corresponding to the position of the second cylinder 422 can be covered by the ceramic slurry. After the ceramic slurry is formed, the pin portion 122 can be more firmly fixed to the liquid guiding component 130, avoiding short circuit caused by the positive and negative pin portions 122 being connected.

[0095] In some embodiments, mold 40 includes a first mold and a second mold. The first mold includes a first cylinder 410, a first connecting portion 430, and a second cylinder 422 connected together. The second mold includes a first cylinder 421 and a second connecting portion 423 connected together. The first mold and the second mold are detachably connected. When ceramic slurry is injected, the first mold and the second mold are connected. When the ceramic slurry solidifies to form a ceramic green body, the first mold and the second mold can be separated to peel off mold 40, and then sintered to form an integral atomizing core 10.

[0096] The atomizing core 10, atomizer 20, atomizing device, and preparation method provided in this application are as follows: The atomizing core 10 has a liquid guiding component 130 between the atomizing tube 110 and the heating element 120. The liquid guiding component 130 guides the atomizing matrix to the heating element 120, eliminating the need for a liquid guiding cotton structure and making the structure of the atomizing core 10 simpler. At the same time, the liquid guiding component 130 has a boss portion 132, which makes the connection between the pin portion 122 and the liquid guiding component 130 more secure, avoiding short circuits caused by the positive and negative pin portions 122 being connected, and effectively preventing leakage of the atomizing matrix, which is beneficial to improving the service life of the atomizing core 10.

[0097] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. An atomizing core, characterized in that, include: The atomizing tube has a liquid inlet; A heating element is disposed inside the atomizing tube, and the heating element includes a heating part and a lead part connected to each other; A liquid guiding component is connected between the atomizing tube and the heating element. The liquid guiding component is hollow and tubular. The inner surface of the liquid guiding component defines an atomizing channel and a boss portion. The pin portion is at least partially fixedly connected to the boss portion.

2. The atomizing core according to claim 1, characterized in that, An air outlet is provided downstream of the air inlet of the atomizing channel, and the protrusion is formed upstream of the air inlet of the liquid guide and is arranged along the circumference of the atomizing channel.

3. The atomizing core according to claim 1, characterized in that, The atomizing core is integrally formed from the atomizing tube, the heating element, and the liquid guiding element.

4. The atomizing core according to claim 1, characterized in that, The heating element is at least partially embedded in the side wall of the atomizing channel.

5. The atomizing core according to claim 1, characterized in that, At least a portion of the outer wall of the liquid guiding element is in contact with the inner wall of the atomizing tube.

6. The atomizing core according to claim 1, characterized in that, The liquid guiding component has a protrusion, which is inserted into the liquid inlet.

7. The atomizing core according to claim 1, characterized in that, The porosity of the fluid guiding component is 50% to 70%.

8. The atomizing core according to claim 1, characterized in that, The average pore size of the liquid guiding element is 13nm to 20nm.

9. An atomizer, characterized in that, The atomizer includes the atomizing core according to any one of claims 1-8, and the atomizer further includes a liquid storage chamber for storing atomizing matrix. The atomizing core is at least partially disposed in the liquid storage chamber, and the liquid guiding member is used to guide the atomizing matrix in the liquid storage chamber to the heating element.

10. An atomizing device, characterized in that, The atomizing device includes the atomizer as described in claim 9, and the atomizing device further includes a power supply component for supplying power to the atomizer.

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