Dry-burning-resistant efficient atomizing core and electronic cigarette
By setting gaps and support structures in the electronic cigarette atomization core, the heating structure does not come into direct contact with the substrate, the problems of excessive temperature of the substrate and small smoke in the prior art are solved, and more efficient smoke generation and preventing dry burning are achieved. .
Patent Information
- Application Number
- CN202310669318.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-07
- Publication Date
- 2024-12-10
AI Technical Summary
The heating structure in the existing electronic cigarette atomization core is in direct contact with the substrate, resulting in excessive temperature of the substrate and easy to dry burn, and the liquid conduction channel is easily blocked, resulting in small smoke and oil leakage.
Design an anti-dry burn-proof and efficient atomization core. By setting a filament or sheet-shaped heating structure on the surface of the substrate and retaining gaps between it and the substrate, the supporting structure and groove design make the heating structure suspended or not directly in contact. The substrate increases the e-liquid storage space and contact area to avoid direct transfer of heat to the substrate.
Effectively prevent the substrate from drying, increase the amount of smoke, simplify production, and facilitate wide application in various types of electronic cigarettes.
Smart Images
Figure CN119097117A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of electronic cigarettes, and in particular relates to an anti-dry-burning high-efficiency atomization core and an electronic cigarette. Background Art
[0002] Electronic cigarettes, also known as e-cigarettes, are mainly used to quit smoking and replace cigarettes. Electronic cigarettes have a similar appearance and taste to cigarettes, but generally do not contain other harmful ingredients such as tar and suspended particles in cigarettes, and electronic cigarettes do not have diffuse or lingering secondhand smoke.
[0003] Electronic cigarettes are mainly composed of an atomizer and a power supply component. Usually, an atomizer includes a substrate, a heating structure, a heating structure support body and electrodes. The general heating structure of an electronic cigarette is a heating wire, which is wound around the heating structure support body to form a heating element. Among them, the two ends of the heating structure are electrically connected to the positive and negative electrodes of the atomizer through the perforations on the card holder to achieve heating operation. When working, the airflow sensing switch is continuously triggered during the user's inhalation time to connect the heating circuit in the electronic cigarette. After the heating circuit is connected, the heating structure on the atomization core heats up to atomize the smoke oil.
[0004] Usually, the heating structure in the atomizer core is directly attached to the substrate, such as Chinese patent applications CN217885090U (atomizer sheet and atomizer device based on a glass substrate), CN217888465U (encapsulation structure of atomizer chip and atomizer device), CN213215334U (electronic cigarette); or the heating structure is integrally formed with the substrate, such as Chinese patent CN113576045A (a ceramic heating element with intelligent heating without burning and preparation method), CN215075537U (a porous ceramic atomizer core and electronic cigarette). Atomizer core structure in the prior art: most or all of the heat generated by the heating structure is used to heat the substrate, which easily leads to excessively high substrate temperature, resulting in "sticky board" after long-term use; and the heating structure in the prior art is easy to block the liquid guide channel, resulting in the phenomenon of dry burning of the substrate, small amount of smoke and oil leakage of the electronic cigarette after a period of use, leaving a poor experience for customers. Summary of the invention
[0005] In order to solve the above technical problems, the present invention provides an anti-dry burning high-efficiency atomizer core and an electronic cigarette. The specific technical solution is as follows: The present invention provides an anti-dry burning high-efficiency atomization core, comprising a substrate and a heating structure, wherein the heating structure is filamentous or sheet-like and is arranged on the surface of the substrate, and the substrate has micropores; a gap exists between at least a part of the heating structure and the surface of the substrate.
[0006] Preferably, the substrate surface is provided with a support structure to support the heating structure, so that the heating structure does not directly contact the substrate surface. Preferably, the support structure has multiple ends and / or middle parts supporting the heating structure.
[0007] Preferably, the atomizer core further comprises an electrode, and the heating structure is arranged on the substrate via the electrode, so that the heating structure does not directly contact the surface of the substrate.
[0008] Preferably, a groove is provided on the surface of the substrate, and the heating structure is suspended above the groove.
[0009] Preferably, the groove is arranged so that the straight-line distance from the bottom surface of the groove to the heating structure is far in the middle and close to the edge.
[0010] Preferably, the heating structure is one of nickel-chromium alloy, nickel-chromium-iron alloy or iron-chromium-aluminum alloy.
[0011] Preferably, the heating structure is in an S-shape, an M-shape or a rectangle.
[0012] The shape of the heating structure can also be set to a polygonal or S-shaped deformation as required.
[0013] Preferably, the heating structure is designed to be flat to increase the contact area with the e-liquid.
[0014] Preferably, the shape of the substrate includes but is not limited to a plate shape or a cylinder shape.
[0015] Preferably, the substrate is made of ceramic or glass.
[0016] Preferably, the other surface opposite to the substrate is provided with liquid-conducting microgrooves.
[0017] The present invention also provides an electronic cigarette, comprising any of the above-mentioned atomization cores.
[0018] Compared with the prior art, the present invention has the following beneficial effects: There is a gap between the atomizer core heating structure and the atomizer core substrate of the present invention, which can increase the accommodation space for the infiltration of smoke oil. During use, the gap between the atomizer core heating structure and the substrate is filled with smoke oil, and the heating structure is immersed in the smoke oil and fully contacts the smoke oil. During the atomization process of the smoke oil, due to the flexibility of the heating structure and the surface tension of the smoke oil, the heating structure will bend toward the substrate to maintain contact with the smoke oil, and the heat generated by the heating structure can be reasonably utilized to increase the amount of smoke and effectively prevent the substrate from burning dry. The atomizer core of the present invention has a simple structure, is easy to mass produce and is widely used in various types of electronic cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1This is a schematic diagram of the structure of an atomizer core with an S-shaped heating structure and a groove in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of an atomizer core with a rectangular heating structure and grooves in an embodiment of the present invention; Figure 3 It is a side view of the atomizer core with grooves in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an atomizer core without a groove in an embodiment of the present invention; Figure 5 It is a side view of an atomizer core without a groove in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of an atomizer core with a cylindrical base and grooves in an embodiment of the present invention; Figure 7 It is a cross-sectional view of an atomizer core with a cylindrical base and grooves in an embodiment of the present invention.
[0020] Explanation of the reference numerals: 1. substrate, 2. heating structure, 3. groove, 4. electrode, 5. gap and 6. supporting structure. DETAILED DESCRIPTION
[0021] The present invention will now be described more fully below with reference to the accompanying drawings, in which exemplary embodiments of the present invention are shown. However, the present invention may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. Specifically, these embodiments are provided so that the present invention will be thorough and complete, and these embodiments will fully convey the scope of the present invention to those skilled in the art.
[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0024] As described in the background technology, the heating structure in the atomizer core of the prior art is completely attached to one surface of the substrate. Such a structure has the problems that a large amount of heat generated by the heating structure acts on the substrate and the amount of smoke is small.
[0025] In view of the above problems, the present application breaks the convention and proposes a technical solution that leaves a small gap between the heating structure and the substrate. Specifically, an anti-dry burning high-efficiency atomizer core includes a substrate 1 and a heating structure 2, the heating structure 2 is arranged on the surface of the substrate 1, the heating structure 2 can be arranged in a filament or sheet shape, and the substrate 1 has micropores; there is a gap 5 between at least a part of the heating structure 2 and the substrate 1.
[0026] like Figure 1-Figure 5 As shown, the substrate 1 is a plate-like structure, which is generally set in the shape of a cuboid when applied to an electronic cigarette, wherein two surfaces that are relatively arranged and have a larger area belong to the surfaces facing the smoke oil, which are defined as the first and second surfaces in this application, wherein the second surface contacts the smoke oil first relative to the first surface. It should be noted that the substrate 1 has micropores, which are used to store the smoke oil and guide the smoke oil from the second surface to the first surface.
[0027] Furthermore, the micropores may be straight through holes that pass through the first surface and the second surface, or the micropores may be staggered holes that are interconnected from top to bottom. In one embodiment, the micropores are set as straight through holes, and at the same time, the opening rate of the area near the heating structure 2 on the first surface is greater than the opening rate of the area away from the heating structure 2. Furthermore, the size (diameter) of the micropores in the shape of straight through holes is non-uniform, and the aperture in the area near the heating structure 2 is greater than the aperture in the area away from the heating structure 2; or in another case, the size (diameter) of the micropores in the shape of straight through holes is uniform, and the density in the area near the heating structure 2 is greater than the density in the area away from the heating structure 2. The density here refers to the ratio of the area of the micropore area (including the area between the holes on the same side of the heating structure 2) to the total area of the substrate 1 when the number of micropores is the same. The larger the ratio, the smaller the density, and the smaller the ratio, the greater the density.
[0028] In a specific embodiment, the substrate 1 can be made of ceramic or glass, and the shape of the substrate 1 can be a rectangular plate, a cylinder, an irregular plate, a sphere or other shapes; Figure 6 and Figure 7 As shown, the shape of the base body 1 is cylindrical.
[0029] The heating structure 2 is used to generate heat and atomize the e-liquid. First, the material of the heating structure 2 is a conductive material, such as a nickel-chromium alloy, a nickel-chromium-iron alloy, or an iron-chromium-aluminum alloy; second, the shape of the heating structure 2 can be set to a polygonal shape, an S-shape, an M-shape, a wavy shape, or other shapes that can be imagined by a person skilled in the art as needed. Conductive electrodes 4 are respectively provided on the first surface of the substrate 1 and at both ends of the heating structure 2, and the two ends of the heating structure 2 are respectively connected to the electrodes 4.
[0030] Furthermore, in a specific embodiment, a support structure 6 is provided from the first surface of the substrate 1 toward the heating structure, for example, a plurality of small protrusions spaced apart from each other, for supporting the heating structure 2, so that the heating structure 2 does not directly contact the first surface of the substrate 1. A groove 3 may also be provided on the first surface of the substrate 1 facing the heating structure 2, and its shape may be set to be inwardly concave, similar to a bowl, so that when the heating structure 2 is suspended above the groove 3, the middle part of the groove 3 is far from the heating structure 2, and the edge part of the groove 3 is close to the heating structure 2.
[0031] The atomizer core structure is further described below in conjunction with specific embodiments. Example 1
[0032] The atomizer core provided in this embodiment refers to Figure 1 and Figure 3 , including a substrate 1 and a heating structure 2, the heating structure 2 is in the form of a sheet and is arranged on the surface of the substrate 1, and the substrate 1 has micropores. A groove 3 is provided on the surface of the substrate 1, and the heating structure 2 is suspended above the groove 3. The groove 3 is arranged so that the straight-line distance from the bottom surface to the heating structure 2 is far in the middle and close at the edge. The heating structure 2 is S-shaped. When the atomizer core provided in this embodiment is working, the smoke oil penetrates into the groove from the substrate, contacts the heating structure, and is directly heated by the heating structure. The heat generated by the heating structure is mainly used to heat the smoke oil in contact with it. Only a small amount of heat is transferred to the substrate through the smoke oil, and the continuously newly infiltrated smoke oil will continuously cool the substrate, so that the substrate is kept from being heated to an excessively high temperature, thereby avoiding dry burning of the substrate. In addition, the design of the groove can increase the storage space for the smoke oil, and the S-shaped heating structure relatively increases the length of the heating structure, so that the heating structure can generate more heat, fully heat the infiltrated smoke oil, and then generate a sufficiently large amount of smoke. Example 2
[0033] The atomizer core provided in this embodiment refers to Figure 2 and Figure 3, including a substrate 1 and a heating structure 2, the heating structure 2 is in the form of a sheet and is arranged on the surface of the substrate 1, and the substrate 1 has micropores. A groove 3 is provided on the surface of the substrate 1, and the heating structure 2 is suspended above the groove 3. The groove 3 is arranged so that the straight-line distance from the bottom surface to the heating structure 2 is far in the middle and close at the edge. The heating structure 2 is rectangular. When the atomizer core provided in this embodiment is working, the smoke oil penetrates into the groove from the substrate, contacts the heating structure, and is directly heated by the heating structure. The heat generated by the heating structure is mainly used to heat the smoke oil at this time, and only a small amount is transferred to the substrate through the smoke oil. The continuously newly infiltrated smoke oil will keep the substrate from being heated to an excessively high temperature, thereby avoiding dry burning of the substrate. In addition, the design of the groove can increase the storage space for the smoke oil, and the rectangular heating structure has a relatively large heating surface, which can provide a larger contact area with the smoke oil, so that the heating structure can generate more heat, and thus generate a sufficiently large amount of smoke. Example 3
[0034] The atomizer core provided in this embodiment refers to Figure 4 and Figure 5 , including a substrate 1 and a heating structure 2, the heating structure 2 is in a sheet shape, and the atomizer core further includes an electrode 4, the heating structure 2 is arranged on the substrate 1 through the electrode 4, so that the heating structure 2 is not in direct contact with the surface of the substrate 1, and there is a gap 5 between the two that can accommodate the smoke oil. When the atomizer core provided by this embodiment is working, the smoke oil penetrates from the substrate into the surface where the heating structure is located, the heating structure is in direct contact with the smoke oil and heats the smoke oil to atomize it, and only a small amount of heat is transferred to the substrate through the smoke oil, thereby preventing the substrate from being dry-burned. Example 4
[0035] The atomizer core provided in this embodiment can be found in Figure 6 and Figure 7 The atomizer core includes a substrate 1 and a heating structure 2. The substrate 1 is cylindrical and has micropores. A groove 3 is provided on the surface of the substrate 1. The heating structure 2 is suspended above the groove 3 to form a gap 5 between the heating structure 2 and the outer surface of the substrate 1. The groove 3 on the surface of the substrate 1 is also provided with a support structure 6, which is used to support the heating structure 2 so that the heating structure 2 does not directly contact the surface of the substrate 1. The cylindrical substrate has a large surface area, which is conducive to increasing the length of the heating structure wrapped around the surface of the substrate, providing more heat, and increasing the amount of smoke. The support structure can prevent the heating structure from directly contacting the substrate when it is bent, which can better prevent the substrate from dry burning.
[0036] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. An anti-dry burning high-efficiency atomization core, comprising a substrate and a heating structure, characterized in that: The heating structure is in the form of a wire or a sheet and is arranged on the surface of the substrate, and the substrate has micropores; There is a gap between at least a portion of the heating structure and the surface of the substrate.
2. The atomizer core according to claim 1, characterized in that: A support structure is provided on the surface of the substrate, and the support structure supports the heating structure.
3. The atomizer core according to claim 1, characterized in that: The atomizing core further comprises an electrode, and the heating structure is arranged on the substrate via the electrode.
4. The atomizer core according to claim 1, characterized in that: A groove is provided on the surface of the base, and the heating structure is suspended above the groove.
5. The atomizer core according to any one of claims 1 to 4, characterized in that: The heating structure is one of nickel-chromium alloy, nickel-chromium-iron alloy or iron-chromium-aluminum alloy.
6. The atomizer core according to any one of claims 1 to 4, characterized in that: The heating structure is in an S-shape, an M-shape or a rectangular shape.
7. The atomizer core according to any one of claims 1 to 4, characterized in that: The substrate is in a plate shape or a cylindrical shape.
8. The atomizer core according to any one of claims 1 to 4, characterized in that: The substrate is made of ceramic or glass.
9. The atomizer core according to any one of claims 1 to 4, characterized in that: The other surface opposite to the substrate is provided with liquid-conducting microgrooves.
10. An electronic cigarette, characterized in that: The invention comprises the atomizer core according to any one of claims 1 to 9.