Atomization core, atomizer and electronic atomization device

Abstract

An atomization core (100), an atomizer (200) and an electronic atomization device (300). The atomization core (100) comprises: heating elements (10) used for atomizing an atomization liquid; a first tubular body (20) sleeved on the peripheries of the heating elements (10), the first tubular body (20) defining an atomization channel (21) of the atomization core (100), and the first tubular body (20) further having first e-liquid guide holes (22) that lead to the atomization channel (21); and a second tubular body (30) sleeved on the periphery of the first tubular body (20), the second tubular body (30) having second e-liquid guide holes (31), the second e-liquid guide holes (31) connecting the first e-liquid guide holes (22) to the outside of the second tubular body (30), an infiltration space (50) being provided between the first tubular body (20) and the second tubular body (30), and the infiltration space (50) being a gap between the first tubular body (20) and the second tubular body (30) and forming a leakage-proof layer when the atomization liquid enters the infiltration space (50).

Description

Atomizer cores, atomizers and electronic atomization equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 1, 2024, with application number 2024204014036 and application name “Atomizer Core, Atomizer and Electronic Atomization Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of atomization technology, and in particular to an atomization core, an atomizer, and an electronic atomization device. Background Art

[0003] An atomizer is a device that heats and atomizes an aerosol-generating substrate into an aerosol. Typically, an atomizer consists of a nozzle, an atomizer core, and an oil tank. Currently, due to assembly requirements, the atomizer core, the nozzle, the oil tank, and the interior of the atomizer core cannot be completely sealed. As a result, the aerosol-generating substrate output from the oil tank is partially atomized upon reaching the atomizer core, while the remaining portion flows out through components or gaps between the oil tank and the heater, often causing oil leakage in the atomization channel.

[0004] Summary of the Invention

[0005] The present application provides an atomizer core, an atomizer, and an electronic atomization device, which can be assembled automatically, have higher assembly efficiency, and can prevent oil leakage between the atomizer core tube body.

[0006] In a first aspect, the present application provides an atomizer core, which includes: a heating element, which is used to atomize the atomizing liquid; a first tube body, which is sleeved on the outer periphery of the heating element, and the first tube body encloses an atomizing channel of the atomizing core, and the first tube body also has a first oil guide hole connected to the atomizing channel; and a second tube body, which is sleeved on the outer periphery of the first tube body, and the second tube body has a second oil guide hole, which is connected to the first oil guide hole and the outside of the second tube body; there is an infiltration space between the first tube body and the second tube body, and the infiltration space is the gap between the first tube body and the second tube body. When the atomized liquid enters the infiltration space, a leak-proof layer is formed in the infiltration space.

[0007] Furthermore, the range of the spacing s between the first tube body and the second tube body is: 0.05 mm ≤ s ≤ 0.1 mm.

[0008] Furthermore, the second tube body includes a first cylindrical portion, a transition portion and a second cylindrical portion that are connected to each other. The radial dimension of the first cylindrical portion is smaller than the radial dimension of the second cylindrical portion. The first cylindrical portion encloses an air outlet channel of the atomizer core, and the air outlet channel is connected to the atomization channel. The second cylindrical portion is sleeved on the outer circumference of the first tube body, and the second cylindrical portion has the second oil guide hole; the opposite ends of the transition portion are respectively connected to the first cylindrical portion and the second cylindrical portion, and the radial dimension of the transition portion gradually decreases from the end connected to the second cylindrical portion to the end connected to the first cylindrical portion.

[0009] Furthermore, a ratio d1 / d2 of a radial dimension d1 of the first cylindrical portion to a radial dimension d2 of the second cylindrical portion is in the range of 0.5≤d1 / d2≤0.95.

[0010] Furthermore, the range of the thickness h1 of the first tube body is 0.15 mm ≤ h1 ≤ 0.25 mm; or the range of the thickness h2 of the second tube body is 0.25 mm ≤ h2 ≤ 0.35 mm.

[0011] Furthermore, the atomizer core further includes a liquid guiding member, which is disposed between the heating element and the first tube body, and surrounds the outer circumference of the heating element.

[0012] Furthermore, an orthographic projection of the second oil guide hole in the radial direction of the surface of the first tube body falls within the range of the first oil guide hole.

[0013] Furthermore, the difference between the radial size of the first oil guide hole and the radial size of the second oil guide hole ranges from 0.3 mm to 0.5 mm; and the radial size of the second oil guide hole ranges from 2 mm to 3.5 mm.

[0014] In a second aspect, the present application further provides an atomizer, comprising: a shell, the shell having a suction nozzle and an opening arranged at intervals; a cover body, the cover body being used to close the opening, the cover body and the shell forming a receiving chamber, the cover body having an air inlet channel, the air inlet channel connecting the receiving chamber and the external environment of the atomizer; and the atomizer core described in an embodiment of the present application, the atomizer core being installed in the receiving chamber, the opposite ends of the atomization channel of the atomizer core being connected to the suction nozzle and the air inlet channel respectively; the shell, the cover body and the atomizer core forming a liquid storage tank, the liquid storage tank being used to store the atomized liquid, and the liquid storage tank being connected to the atomization channel through the first oil guide hole and the second oil guide hole.

[0015] In a third aspect, the present application also provides an electronic atomization device, which includes: the atomizer described in the embodiment of the present application; a control component, the control component is electrically connected to the heating element of the atomizer, and is used to control the operation of the atomizer; and a battery component, the battery component is electrically connected to the heating element, and is used to power the atomizer.

[0016] The atomizer core of the embodiment of the present application includes a heating element, a first tube body and a second tube body, which are sequentially sleeved from the inside to the outside, and an infiltration space is provided between the first tube body and the second tube body. In the embodiment of the present application, no oil storage cotton is provided between the first tube body and the second tube body, so that when the atomizer core is assembled, there is no need to manually sleeve and assemble the oil storage cotton between the first tube body and the second tube body, so that the assembly of the first tube body and the second tube body can be automated, thereby improving the assembly efficiency of the atomizer core and reducing the preparation cost of the atomizer core; in addition, there is an infiltration space between the first tube body and the second tube body. When the atomized liquid enters the infiltration space, due to the surface tension between the first tube body and the second tube body, the atomized liquid will not flow in the infiltration space, thereby preventing the atomized liquid from leaking through the infiltration space, thereby effectively preventing the atomized liquid from leaking out of the infiltration space, thereby effectively preventing the atomizer core from leaking oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] FIG1 is a schematic structural diagram of an atomizer core according to an embodiment of the present application.

[0019] FIG2 is a schematic diagram of the explosion structure of the atomizer core according to an embodiment of the present application.

[0020] FIG3 is a schematic cross-sectional view of the atomizer core along the AA direction in FIG1 according to an embodiment of the present application.

[0021] FIG4 is an enlarged view of the dotted frame I in FIG3 .

[0022] FIG5 is a schematic structural diagram of a second tube body according to an embodiment of the present application.

[0023] FIG6 is a schematic cross-sectional view of the second tube body along the AA direction in FIG1 according to an embodiment of the present application.

[0024] FIG7 is a schematic structural diagram of an atomizer according to an embodiment of the present application.

[0025] FIG8 is a schematic diagram of the explosion structure of the atomizer according to an embodiment of the present application.

[0026] FIG9 is a schematic cross-sectional view of the atomizer according to an embodiment of the present application along the BB direction in FIG7 .

[0027] FIG10 is a schematic cross-sectional view of the atomizer according to an embodiment of the present application along the CC direction in FIG7 .

[0028] FIG11 is a schematic structural diagram of an electronic atomization device according to an embodiment of the present application.

[0029] FIG12 is a circuit block diagram of an electronic atomization device according to an embodiment of the present application.

[0030] Explanation of the accompanying drawings: 100-atomization core, 10-heating element, 20-first tube body, 21-atomization channel, 22-first oil guide hole, 30-second tube body, 31-second oil guide hole, 32-first cylinder part, 321-air outlet channel, 33-transition part, 34-second cylinder part, 40-liquid guide part, 50-infiltration space, 200-atomizer, 210-shell, 211-nozzle, 212-opening, 230-cover, 231-air inlet channel, 240-receiving chamber, 250-liquid storage tank, 260-bracket, 300-electronic atomization device, 310-control component, 311-air pressure sensor, 312-main control board, 3121-processor, 3122-memory, 320-battery assembly. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] The terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0033] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0034] It should be noted that, for the convenience of explanation, in the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments.

[0035] In addition to a liquid guide member provided on the outside of the heating wire, the atomizer core of existing integrated electronic atomizer devices also requires an oil storage cotton to be provided between the two layers of metal tubes provided on the outside of the heating wire and the liquid guide member to prevent the atomized matrix from leaking through the gap between the two layers of metal tubes, thereby avoiding oil leakage in the electronic atomizer device. However, when installing the oil storage cotton between the two layers of metal tubes, the oil storage cotton must first be manually inserted into the front end of the inner metal tube, and then the oil storage cotton and the inner metal tube must be inserted into the outer metal tube. This makes automated production impossible, greatly reducing the production efficiency of the atomizer core and increasing the production cost of the atomizer core.

[0036] Referring to Figures 1 to 4, an embodiment of the present application provides an atomizer core 100, which includes a heating element 10, a first tube body 20, and a second tube body 30; the heating element 10 is used to atomize the atomized liquid, which can be tobacco oil; the first tube body 20 and the second tube body 30 are coaxial, and the first tube body 20 is sleeved on the outer periphery of the heating element 10, and the first tube body 20 encloses an atomization channel 21 of the atomizer core 100, and the side wall of the first tube body 20 is further provided with a plurality of first oil guide holes 22 that are connected to the atomization channel 21 and are arranged along the circumferential direction; the second tube body 30 is sleeved on the outer periphery of the first tube body 20, and the side wall of the second tube body 30 is provided with a plurality of first oil guide holes 22 that are connected to the atomization channel 21 and are arranged along the circumferential direction A plurality of second oil guide holes 31 are circumferentially arranged. The second oil guide holes 31 communicate with the first oil guide hole 22 and the exterior of the second tube body 30. When the second tube body 30 is sleeved on the exterior of the first tube body 20, the positions of the second oil guide holes 31 correspond to those of the first oil guide holes 22. The area of ​​the second oil guide holes 31 is smaller than that of the first oil guide holes 22. The first oil guide holes 22 cover the second oil guide holes 31. The number of the first oil guide holes 22 and the second oil guide holes 31 can be the same. A wetted space 50 is defined between the first tube body 20 and the second tube body 30. The wetted space 50 is the gap between the tube portions of the first tube body 20 and the second tube body 30.

[0037] The atomizer core 100 of the embodiment of the present application includes a heating element 10, a first tube body 20, and a second tube body 30, which are sequentially arranged from the inside out. A wetted space 50 is defined between the first tube body 20 and the second tube body 30. In the embodiment of the present application, no oil reservoir is provided between the first tube body 20 and the second tube body 30. Therefore, when assembling the atomizer core 100, there is no need to manually arrange and assemble the oil reservoir between the first tube body 20 and the second tube body 30. This allows for automated assembly of the first tube body 20 and the second tube body 30, thereby improving assembly efficiency and reducing manufacturing costs of the atomizer core 100. Furthermore, the wetted space 50 is defined between the first tube body 20 and the second tube body 30. When atomized liquid enters the wetted space 50, the surface tension between the first tube body 20 and the second tube body 30 prevents the atomized liquid from flowing within the wetted space 50, thereby preventing the atomized liquid from leaking out through the wetted space 50. This effectively prevents oil leakage from the atomizer core 100.

[0038] The atomizer core 100 of the embodiment of the present application can be applied to an electronic atomization device as an atomization component of an atomizer of the electronic atomization device.

[0039] Optionally, the heating element 10 may be, but is not limited to, at least one of a heating wire, a heating net, a heating sheet, and the like.

[0040] It can be understood that the first tube body 20 is disposed in the second tube body 30, and the heating element 10 is disposed in the first tube body 20. In other words, the heating element 10, the first tube body 20 and the second tube body 30 are sequentially arranged.

[0041] It is understood that the first oil guide hole 22 and the second oil guide hole 31 are provided in correspondence with each other. The first oil guide hole 22 and the second oil guide hole 31 cooperate to guide the atomized liquid outside the atomizer core 100 into the first tube body 20, so that the atomized liquid is heated by the heating element 10 and atomized to form an aerosol for the user to inhale.

[0042] Optionally, the number of the first oil guide holes 22 can be one or more. When the number of the first oil guide holes 22 is multiple, the multiple first oil guide holes 22 are arranged in sequence along the circumference of the first tube body 20. In some embodiments, the multiple first oil guide holes 22 are symmetrically arranged or evenly arranged along the circumference of the first tube body 20, so that the atomized liquid can be uniformly transmitted to the liquid guide member 40 through the second oil guide holes 31 and the first oil guide holes 22 in sequence, so that the atomized liquid is more evenly distributed on the liquid guide member 40, and the heating element 10 is more balanced when atomizing. The liquid guide member 40 can be made of organic cotton, microporous ceramics, glass fiber or porous metal material, or made of other high-temperature resistant fiber materials with a microporous structure, for example, it can be oil-conducting cotton.

[0043] Optionally, the number of the second oil guide holes 31 may be one or more. When there are multiple second oil guide holes 31, the multiple second oil guide holes 31 are sequentially spaced apart along the circumference of the second tube body 30. In some embodiments, the multiple second oil guide holes 31 are symmetrically or evenly arranged along the circumference of the second tube body 30, so that the atomized liquid can be uniformly transferred to the liquid guide member 40 through the second oil guide holes 31 and the first oil guide holes 22 in sequence, making the atomized liquid more evenly distributed on the liquid guide member 40 and more balanced when the heating element 10 is atomized.

[0044] Optionally, the infiltration space 50 forms a leak-proof layer (not shown) after being infiltrated by the atomized liquid. After the leak-proof layer is formed, the leak-proof layer can block the atomized liquid from passing through the gap between the first tube body 20 and the second tube body 30. The atomized liquid is transmitted to the liquid guide part 40 through the second oil guide hole 31 and the first oil guide hole 22, and the atomized liquid cannot leak out through the gap between the first tube body 20 and the second tube body 30.

[0045] It can be understood that the leak-proof layer is an atomized liquid film layer formed by the atomized liquid on the first tube body 20 and the second tube body 30 .

[0046] It should be noted that when a large negative pressure is formed inside the atomizer core, some of the atomized liquid will enter the infiltration space 50. However, when the atomizer core stops working, the leak-proof layer formed by the atomized liquid does not flow in the infiltration space 50, thereby preventing the atomized liquid from leaking.

[0047] In some embodiments, the gap between the first tube 20 and the second tube 30, i.e., the spacing s of the wetted space 50, is in the range of 0.05 mm ≤ s ≤ 0.1 mm. Within this spacing range, liquid cannot flow through the gap between the two tubes, forming a leak-proof layer. Atomized liquid subsequently passing through the two oil guide holes will not leak out through the gap between the two tubes, thus preventing oil leakage in the atomizer core 100.

[0048] In some embodiments, the spacing s between the first tube body 20 and the second tube body 30 may be, but is not limited to, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, etc. If the distance between the first tube body 20 and the second tube body 30 is too small, such as when the spacing s is less than 0.05 mm, the assembly of the first tube body 20 and the second tube body 30 may be affected, and even the automated assembly between the first tube body 20 and the second tube body 30 may be impossible, which is currently unachievable. If the distance between the first tube body 20 and the second tube body 30 is too large, such as when the spacing s is greater than 0.1 mm, the atomized liquid may easily enter the gap between the first tube body 20 and the second tube body 30. After entering the gap, the atomized liquid remains in a flowing state, and a leak-proof layer cannot be formed, thereby causing the atomizer core 100 to leak liquid or oil. When the spacing s between the first tube body 20 and the second tube body 30 is in the range of 0.05 mm to 0.1 mm, the first tube body 20 and the second tube body 30 can be assembled well, and the atomized liquid can be prevented from leaking through the gap between the first tube body 20 and the second tube body 30, thereby preventing the atomizer core 100 from leaking oil.

[0049] The atomizer core 100 of the embodiment of the present application includes a heating element 10, a first tube 20, and a second tube 30, which are sequentially arranged. The spacing s between the first tube 20 and the second tube 30 is in the range of 0.05 mm ≤ s ≤ 0.1 mm. In the embodiment of the present application, no oil reservoir is provided between the first tube 20 and the second tube 30. Therefore, when assembling the atomizer core 100, there is no need to manually arrange and assemble the oil reservoir between the first tube 20 and the second tube 30. This allows for automated assembly of the first tube 20 and the second tube 30, thereby improving assembly efficiency and reducing production costs of the atomizer core 100. Furthermore, the spacing s between the first tube 20 and the second tube 30 is in the range of 0.05 mm ≤ s ≤ 0.1 mm. This prevents atomized liquid from entering the gap between the first tube 20 and the second tube 30, thereby preventing oil leakage from the atomizer core 100. In addition, compared with the solution in which an oil storage cotton is provided between the first tube body 20 and the second tube body 30, the spacing between the first tube body 20 and the second tube body 30 of the present application is smaller, so that the volume (or outer diameter) of the second tube body 30 can be made smaller, making the atomizer core 100 smaller, so that the liquid storage tank formed between the atomizer core 100 and the shell can be made larger, with a greater liquid storage function; or, while ensuring that the size of the liquid storage tank remains unchanged, the atomization channel 21 can be made larger, thereby better improving the atomization efficiency, increasing the concentration of the aerosol, and thus improving the taste of the aerosol.

[0050] Please refer to Figures 5 and 6. In some embodiments, the second tube body 30 includes a first cylindrical portion 32 and a second cylindrical portion 34 that are connected to each other. The radial dimension of the first cylindrical portion 32 is smaller than the radial dimension of the second cylindrical portion 34. The first cylindrical portion 32 and the second cylindrical portion 34 are coaxially arranged. The first cylindrical portion 32 encloses an air outlet channel 321 of the atomizer core 100. The air outlet channel 321 is connected to the atomization channel 21. The second cylindrical portion 34 is sleeved on the outer circumference of the first tube body 20 and has a second oil guide hole 31.

[0051] It can be understood that the first barrel portion 32 is closer to the mouthpiece of the atomizer than the second barrel portion 34 .

[0052] It should be noted that the first barrel portion 32 can be a cylindrical barrel, a prismatic barrel, an elliptical barrel, etc., and this application does not make specific restrictions on this. The second barrel portion 34 can be a cylindrical barrel, a prismatic barrel, an elliptical barrel, etc., and this application does not make specific restrictions on this. The first tube 20 can be a cylindrical barrel, a prismatic barrel, an elliptical barrel, etc., and this application does not make specific restrictions on this. In some embodiments, the first barrel portion 32, the second barrel portion 34 and the first tube 20 have similar shapes but different radial dimensions. This facilitates the assembly of the atomizer core 100, reduces the volume of the atomizer core 100, and improves the aesthetics of the atomizer core 100.

[0053] It can be understood that the first tube body 20 is disposed in the second cylindrical portion 34 , but the first tube body 20 is not disposed in the first cylindrical portion 32 .

[0054] In this embodiment, the radial dimension of the first cylindrical portion 32 is smaller than the radial dimension of the second cylindrical portion 34 , which is conducive to the aggregation of aerosol and increases the concentration of aerosol flowing through the air outlet channel 321 , thereby improving the taste of the aerosol and further improving the user experience.

[0055] In some embodiments, the second tube body 30 also includes a transition portion 33, the opposite ends of the transition portion 33 are respectively connected to the first cylindrical portion 32 and the second cylindrical portion 34, and the radial dimension of the transition portion 33 gradually decreases from the end connected to the second cylindrical portion 34 to the end connected to the first cylindrical portion 32.

[0056] It can be understood that the radial dimension of the transition portion 33 gradually decreases from the radial dimension of the second cylindrical portion 34 to the radial dimension of the first cylindrical portion 32 .

[0057] In this embodiment, a transition portion 33 is provided, and the radial dimension of the transition portion 33 gradually decreases from the end connected to the second cylindrical portion 34 to the end connected to the first cylindrical portion 32. In this way, after the atomized liquid in the first tube body 20 is atomized to form an aerosol, the concentration of the aerosol gradually accumulates when it passes through the atomization channel 21 and flows through the air outlet channel 321, making the aerosol smoother and smoother, avoiding the aerosol from gathering too quickly and the air flow pressure being too high, which will impact the user when the user inhales and produce a sense of impact, thereby improving the user experience.

[0058] In some embodiments, a ratio d1 / d2 of the radial dimension d1 of the first cylindrical portion 32 to the radial dimension d2 of the second cylindrical portion 34 is in the range of 0.5≤d1 / d2≤0.95.

[0059] In some embodiments, the ratio d1 / d2 of the radial dimension d1 of the first cylindrical portion 32 to the radial dimension d2 of the second cylindrical portion 34 may be, but is not limited to, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, etc.

[0060] It should be noted that, in this embodiment, the radial dimension d1 of the first cylindrical portion 32 refers to the inner radial dimension of the first cylindrical portion 32 , and the radial dimension d2 of the second cylindrical portion 34 refers to the inner radial dimension of the second cylindrical portion 34 .

[0061] In this embodiment, if the ratio d1 / d2 of the radial dimension d1 of the first cylindrical portion 32 to the radial dimension d2 of the second cylindrical portion 34 is too small, then after the aerosol is formed, it flows through the atomization channel 21 and the air outlet channel 321, and the aerosol is too concentrated, making the aerosol too dense, affecting the taste of the aerosol. In addition, the airflow or air pressure of the aerosol is too large, causing discomfort to the user and affecting the user experience; if the ratio d1 / d2 of the radial dimension d1 of the first cylindrical portion 32 to the radial dimension d2 of the second cylindrical portion 34 is too large, the aerosol is not concentrated enough, making the aerosol too thin and not rich enough, which also affects the taste of the aerosol. When the ratio d1 / d2 of the radial dimension d1 of the first cylindrical portion 32 to the radial dimension d2 of the second cylindrical portion 34 is in the range of 0.5≤d1 / d2≤0.95, the aerosol emitted from the atomizer core 100 can have a more appropriate concentration, thereby having a better taste, and can avoid the aerosol airflow or air pressure being too large to cause discomfort to the user.

[0062] Furthermore, the ratio d1 / d2 of the radial dimension d1 of the first cylindrical portion 32 to the radial dimension d2 of the second cylindrical portion 34 is in the range of 0.6≤d1 / d2≤0.9. This ensures that the aerosol emitted from the atomizer core 100 has a more appropriate concentration, resulting in a better taste, while also preventing discomfort to the user caused by excessive aerosol airflow or pressure.

[0063] Optionally, the wall thickness of the second tube body 30 is greater than the wall thickness of the first tube body 20 , which can better improve the mechanical strength of the atomizer core 100 .

[0064] In some embodiments, the thickness h1 of the first tube 20 is in the range of 0.15 mm ≤ h1 ≤ 0.25 mm. In some embodiments, the thickness h1 of the first tube 20 may be, but is not limited to, 0.15 mm, 0.16 mm, 0.17 mm, 0.18 mm, 0.19 mm, 0.20 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, etc. If the thickness h1 of the first tube 20 is too thin, the first tube 20 is prone to deformation. If the thickness h1 of the first tube 20 is too thick, an oil film is easily formed at the position of the first oil guide hole 22, making the heating element 10 easily burn and fail.

[0065] Optionally, the first tube body 20 can be prepared by stamping and curling.

[0066] In some embodiments, the thickness h2 of the second tube body 30 is in the range of 0.25mm≤h2≤0.35mm. In some embodiments, the thickness h2 of the second tube body 30 can be, but is not limited to, 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, 0.30mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm, 0.35mm, etc. If the thickness h2 of the second tube body 30 is too thin, the second tube body 30 is prone to deformation; in addition, since the radial dimension of the first tube body 20 is not uniform, it is usually manufactured by stamping and stretching, and it may be difficult to achieve a thickness h2 of the second tube body 30 that is too thin in terms of technology. If the thickness h2 of the second tube body 30 is too thick, an oil film is easily formed at the position of the second oil guide hole 31, making the heating element 10 easily burnt and ineffective.

[0067] Optionally, the second tube body 30 can be prepared by stamping and stretching.

[0068] Optionally, the thickness of the first tube body 20 is uniform; the thickness of the second tube body 30 is uniform.

[0069] Please refer to FIG. 3 again. In some embodiments, the atomizer core 100 further includes a liquid guide 40 . The liquid guide 40 is disposed between the heating element 10 and the first tube 20 , and surrounds the outer circumference of the heating element 10 .

[0070] It can be understood that the heating element 10 , the liquid guiding element 40 , the first tube body 20 and the second tube body 30 are sequentially arranged, and the heating element 10 is supported by the liquid guiding element 40 .

[0071] Optionally, the outer wall of the liquid guiding member 40 abuts against the inner wall of the first tube body 20 .

[0072] In this embodiment, by arranging a liquid guide member 40 between the heating element 10 and the first tube body 20, the heating element 10 can be better installed and fixed; in addition, the liquid guide member 40 can make the atomized liquid flowing to the heating element 10 more evenly distributed, avoiding the situation where the heating element 10 has too little atomized liquid in some parts, which is easy to burn or carbonize, affecting the atomization effect of the atomized liquid.

[0073] In some embodiments, the orthographic projection of the second oil guide hole 31 in the radial direction of the surface of the first tube 20 falls within the range of the first oil guide hole 22. The difference between the radial dimensions of the first oil guide hole 22 and the second oil guide hole 31 ranges from 0.3 mm to 0.5 mm. In some embodiments, the difference between the radial dimensions of the first oil guide hole 22 and the second oil guide hole 31 can be, but is not limited to, 0.3 mm, 0.33 mm, 0.35 mm, 0.38 mm, 0.4 mm, 0.43 mm, 0.45 mm, 0.48 mm, 0.5 mm, etc.

[0074] In this embodiment, the atomizer core 100 controls the amount of atomized liquid entering the heating element 10 by the size of the second oil guide hole 31. If the first oil guide hole 22 is misaligned with the second oil guide hole 31, the amount of atomized liquid entering the heating element 10 will be affected, thereby affecting the atomization effect of the atomizer core 100. By arranging the positions and sizes of the first oil guide hole 22 and the second oil guide hole 31, the orthographic projection of the second oil guide hole 31 in the radial direction of the surface of the first tube 20 falls within the range of the first oil guide hole 22. The difference between the radial dimensions of the first oil guide hole 22 and the second oil guide hole 31 ranges from 0.3 mm to 0.5 mm. This makes it easier to assemble the first tube 20 and the second tube 30. During assembly, the first oil guide hole 22 and the second oil guide hole 31 can be better aligned, and the first oil guide hole 22 can better fall within the range of the first oil guide hole 22, thereby improving assembly speed.

[0075] Optionally, the radial dimension of the second oil guide hole 31 ranges from 2 mm to 3.5 mm. In some embodiments, the radial dimension of the second oil guide hole 31 may be, but is not limited to, 2 mm, 2.2 mm, 2.4 mm, 2.6 mm, 2.8 mm, 3.0 mm, 3.2 mm, 3.4 mm, 3.5 mm, etc. If the radial dimension of the second oil guide hole 31 is too small, the amount of atomized liquid entering the heating element 10 will be too small, and the atomizer core 100 may easily burn. If the radial dimension of the second oil guide hole 31 is too large, the atomizer core 100 may easily leak oil.

[0076] 7 to 10 , the present invention further provides an atomizer 200, comprising a housing 210, a cover 230, and an atomizer core 100 according to the present invention. The housing 210 has a nozzle 211 and an opening 212 spaced apart from each other. The cover 230 is used to seal the opening 212. The cover 230 and the housing 210 form a receiving chamber 240. The cover 230 has an air inlet passage 231 that connects the receiving chamber 240 with the external environment of the atomizer 200. The atomizer core 100 is mounted in the receiving chamber 240. The opposite ends of the atomization passage 21 of the atomizer core 100 are connected to the nozzle 211 and the air inlet passage 231, respectively. The housing 210, the cover 230, and the atomizer core 100 form a liquid storage tank 250 for storing atomized liquid. The liquid storage tank 250 is connected to the liquid guide member 40 via the first oil guide hole 22 and the second oil guide hole 31.

[0077] Optionally, the suction nozzle 211 is disposed opposite to the opening 212. It can be understood that the suction nozzle 211 is used to connect the air outlet channel 321 of the atomizer core 100 and the external environment.

[0078] It is understood that when the atomizer 200 is in operation, air enters the atomizing channel 21 from the air inlet channel 231, driving the aerosol in the atomizing channel 21 to flow through the air outlet channel 321 and out of the mouthpiece 211. The flow path of the gas or air in the atomizer 200 is shown by the dotted arrows in FIG10 .

[0079] For descriptions of other aspects of the atomizer core 100, please refer to the descriptions of the corresponding parts of the above embodiments, which will not be repeated here.

[0080] The atomizer 200 of the embodiment of the present application includes an atomizer core 100, which includes a heating element 10, a first tube 20, and a second tube 30, which are sequentially arranged from the inside out. A wetted space 50 is defined between the first tube 20 and the second tube 30. In the embodiment of the present application, no oil reservoir is provided between the first tube 20 and the second tube 30. Therefore, when assembling the atomizer core 100, there is no need to manually arrange and assemble the oil reservoir. This allows for automated assembly of the first tube 20 and the second tube 30, thereby improving assembly efficiency of the atomizer core 100. Furthermore, the wetted space 50 is defined between the first tube 20 and the second tube 30. When atomized liquid enters the wetted space 50, the surface tension between the first tube 20 and the second tube 30 prevents the atomized liquid from flowing within the wetted space 50, thereby preventing the atomized liquid from leaking out of the wetted space 50. This effectively prevents oil leakage from the atomizer core 100. In addition, compared with the solution in which an oil storage cotton is provided between the first tube body 20 and the second tube body 30, the spacing between the first tube body 20 and the second tube body 30 of the present application is smaller, so that the volume (or outer diameter) of the second tube body 30 can be made smaller, making the atomizer core 100 smaller, so that the liquid storage tank 250 formed between the atomizer core 100 and the shell 210 can be made larger, with a greater liquid storage function; or, while ensuring that the size of the liquid storage tank 250 remains unchanged, the atomization channel 21 can be made larger, thereby better improving the atomization efficiency, increasing the richness of the aerosol, and thus improving the taste of the aerosol.

[0081] In some embodiments, the atomizer 200 further includes a liquid storage sponge (not shown) disposed within the liquid storage bin 250 for absorbing atomized liquid. In this embodiment, the placement of the liquid storage sponge within the liquid storage bin 250 allows the atomized liquid to be absorbed by the sponge, thereby better preventing the e-liquid from flowing out or dripping, and improving the atomizer 200's leak-proof performance. Furthermore, the storage of the atomized liquid on the sponge also allows for a more even distribution of the atomized liquid, preventing oil contamination and carbonization within the liquid storage bin 250.

[0082] Optionally, the atomizer 200 further includes a bracket 260 , which is disposed in the receiving cavity 240 and located between the cover 230 and the atomizer core 100 , and is used to install and fix the atomizer core 100 .

[0083] Referring to Figures 11 and 12 , the present invention also provides an electronic atomization device 300, which includes the atomizer 200 of the present invention, a control assembly 310, and a battery assembly 320. The control assembly 310 is electrically connected to the heating element of the atomizer to control the operation of the atomizer; the battery assembly 320 is electrically connected to the heating element to power the atomizer.

[0084] Optionally, the control component 310 includes an air pressure sensor 311 and a main control board 312; the air pressure sensor 311 is used to detect the air pressure parameters entering the atomizer 200; the main control board 312 is electrically connected to the air pressure sensor 311 and the heating element 10 of the atomizer 200, respectively, and is used to control the on and off of the battery component 320 according to the air pressure parameters detected by the air pressure sensor 311, and control the heating element 10 to atomize the atomized liquid when the battery component 320 and the heating element 10 are connected.

[0085] Optionally, the battery assembly 320 is electrically connected to the heating element 10 to provide power to the heating element 10. The on and off of the battery assembly 320 is controlled by the main control board 312, and the heating element 10 is powered when the battery assembly 320 is on.

[0086] The electronic atomization device 300 of the embodiment of the present application may be a disposable atomization device, or a rechargeable atomization device (i.e., an atomization device that can be repeatedly recharged or have a replacement cartridge), which is not specifically limited in the present application.

[0087] For detailed description of other aspects of the atomizer 200, please refer to the description of the corresponding parts of the above embodiment, which will not be repeated here.

[0088] Optionally, the air pressure sensor 311 is disposed in the air inlet channel 231 of the atomizer 200 .

[0089] It should be noted that when the electronic atomization device 300 is in use, the user inhales from the suction nozzle 211, and the air enters the atomizer 200 from the air inlet channel 231. When the air pressure parameter detected by the air pressure sensor 311 exceeds a preset threshold value (for example, the pressure exceeds a preset value), the main control board 312 controls the battery assembly 320 to be connected to the atomizer 200, thereby controlling the heating element 10 of the atomizer 200 to work. The heating element 10 atomizes the atomized liquid in the atomization channel 21 to form an aerosol. The aerosol flows through the atomization channel 21 with the air, and flows through the suction nozzle 211 through the air outlet channel 321, and enters the user's mouth from the suction nozzle 211 for the user to inhale. When the air pressure parameter detected by the air pressure sensor 311 is less than the preset threshold value, the main control board 312 controls the battery assembly 320 to be disconnected from the atomizer 200, so that the heating element 10 of the atomizer 200 stops working.

[0090] Optionally, the main control board 312 may include a processor 3121 and a memory 3122. The processor 3121 is electrically connected to the air pressure sensor 311, the heating element 10, and the memory 3122. The processor 3121 is used to control the air pressure sensor 311 to detect air pressure information and to control the heating element 10 to atomize the atomized liquid based on the air pressure information. The memory 3122 is used to store program codes required for the operation of the processor 3121, program codes required for controlling the air pressure sensor 311 and the heating element 10, etc.

[0091] Optionally, the processor 3121 includes one or more general-purpose processors 3121, wherein the general-purpose processor 3121 can be any type of device capable of processing electronic instructions, including a central processing unit (CPU), a microprocessor, a microcontroller, a main processor, a controller, and an ASIC. The processor 3121 is used to execute various types of digital storage instructions, such as software or firmware programs stored in the memory 3122, which enables the computing device to provide a wide variety of services.

[0092] Optionally, the memory 3122 may include volatile memory, such as random access memory (RAM); the memory 3122 may also include non-volatile memory (NVM), such as read-only memory (ROM), flash memory (FM), hard disk drive (HDD), or solid-state drive (SSD). The memory 3122 may also include a combination of the aforementioned types of memory.

[0093] The electronic atomization device 300 of the present application includes an atomizer 200 , which includes an atomizer core 100 from the inside out. The atomizer core 100 includes a heating element 10 , a first tube 20 , and a second tube 30 that are sequentially sleeved. A wetted space 50 is defined between the first tube 20 and the second tube 30 . In the embodiment of the present application, no oil storage cotton is provided between the first tube body 20 and the second tube body 30. Therefore, when the atomizer core 100 is assembled, there is no need to manually put on and assemble the oil storage cotton, so that the assembly of the first tube body 20 and the second tube body 30 can be automated, thereby improving the assembly efficiency of the atomizer core 100. In addition, there is an infiltration space 50 between the first tube body 20 and the second tube body 30. When the atomized liquid enters the infiltration space 50, due to the surface tension between the first tube body 20 and the second tube body 30, the atomized liquid will not flow in the infiltration space 50, thereby preventing the atomized liquid from leaking through the infiltration space 50, thereby effectively preventing the atomized liquid from leaking out of the atomizer core 100. In addition, compared with the solution in which an oil storage cotton is provided between the first tube body 20 and the second tube body 30, the spacing between the first tube body 20 and the second tube body 30 of the present application is smaller, so that the volume (or outer diameter) of the second tube body 30 can be made smaller, making the atomizer core 100 smaller, so that the liquid storage tank 250 formed between the atomizer core 100 and the shell 210 can be made larger, with a greater liquid storage function; or, while ensuring that the size of the liquid storage tank 250 remains unchanged, the atomization channel 21 can be made larger, thereby better improving the atomization efficiency, increasing the richness of the aerosol, and thus improving the taste of the aerosol.

Claims

1. An atomizer core, characterized in that: The atomizing core comprises: A heating element, the heating element being used to atomize the atomized liquid; A first tube body, the first tube body being sleeved on the outer periphery of the heating element, the first tube body enclosing an atomization channel of the atomization core, and the first tube body further having a first oil guide hole communicating with the atomization channel; and a second tube body, the second tube body being sleeved on the outer periphery of the first tube body, the second tube body having a second oil guide hole, the second oil guide hole communicating with the first oil guide hole and the outside of the second tube body; There is an infiltration space between the first tube body and the second tube body. The infiltration space is the gap between the first tube body and the second tube body. When the atomized liquid enters the infiltration space, a leak-proof layer is formed in the infiltration space.

2. The atomizer core according to claim 1, characterized in that The range of the spacing s between the first tube body and the second tube body is: 0.05 mm ≤ s ≤ 0.1 mm.

3. The atomizer core according to claim 1 or 2, characterized in that: The second tube body includes a first cylindrical portion, a transition portion and a second cylindrical portion that are connected to each other. The radial dimension of the first cylindrical portion is smaller than that of the second cylindrical portion. The first cylindrical portion encloses an air outlet passage of the atomizer core, and the air outlet passage is connected to the atomizer passage. The second cylindrical portion is sleeved on the outer periphery of the first tube body, and the second cylindrical portion has the second oil guide hole. The opposite ends of the transition portion are respectively connected to the first cylindrical portion and the second cylindrical portion, and the radial dimension of the transition portion gradually decreases from the end connected to the second cylindrical portion to the end connected to the first cylindrical portion.

4. The atomizer core according to claim 3, characterized in that The range of the ratio d1 / d2 of the radial dimension d1 of the first cylindrical portion to the radial dimension d2 of the second cylindrical portion is: 0.5≤d1 / d2≤0.

95.

5. The atomizer core according to claim 1 or 2, characterized in that: The range of the thickness h1 of the first tube body is 0.15 mm ≤ h1 ≤ 0.25 mm; or the range of the thickness h2 of the second tube body is 0.25 mm ≤ h2 ≤ 0.35 mm.

6. The atomizer core according to claim 1 or 2, characterized in that: The atomizing core further includes a liquid guiding member, which is disposed between the heating element and the first tube body and surrounds the outer circumference of the heating element.

7. The atomizer core according to claim 1 or 2, characterized in that: An orthographic projection of the second oil guide hole in a radial direction of the surface of the first tube body falls within the range of the first oil guide hole.

8. The atomizer core according to claim 7, characterized in that: The difference between the radial size of the first oil guide hole and the radial size of the second oil guide hole ranges from 0.3 mm to 0.5 mm; the radial size of the second oil guide hole ranges from 2 mm to 3.5 mm.

9. An atomizer, characterized in that: The atomizer comprises: a housing having a nozzle and an opening spaced apart from each other; a cover body, the cover body being used to close the opening, the cover body and the shell enclosing a receiving cavity, the cover body having an air inlet passage, the air inlet passage communicating with the receiving cavity and the external environment of the atomizer; and The atomizer core according to any one of claims 1 to 8 is installed in the accommodating cavity, and opposite ends of the atomization channel of the atomizer core are respectively connected to the suction nozzle and the air inlet channel; the shell, the cover, and the atomizer core enclose a liquid storage tank, the liquid storage tank is used to store the atomized liquid, and the liquid storage tank is connected to the atomization channel through the first oil guide hole and the second oil guide hole.

10. An electronic atomization device, characterized in that: include: The atomizer according to claim 9; a control component, the control component being electrically connected to the heating element of the atomizer and being used to control the operation of the atomizer; A battery assembly is electrically connected to the heating element and is used to power the atomizer.

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