Liquid residual amount detection structure, atomizer and electronic atomization device

Abstract

The application discloses a liquid residual amount detection structure, an atomizer and an electronic atomization device, wherein the liquid residual amount detection structure comprises a first detection electrode and a second detection electrode arranged in a base, a first detection electrode sheet electrically connected with the first detection electrode and arranged on an inner circumferential wall of the base and capable of being immersed in a liquid stored in a liquid storage bin, a second detection electrode sheet electrically connected with the second detection electrode and arranged on the inner circumferential wall of the base and capable of being immersed in the liquid stored in the liquid storage bin, and a liquid detection module electrically connected with the first detection electrode and the second detection electrode respectively, wherein the first detection electrode sheet and the second detection electrode sheet are arranged separately and are not in the same plane. The application can uniformly detect the liquid residual amount in the atomizer when the atomizer is placed obliquely, avoid misjudgment of the liquid residual amount, accurately control the working of the atomizer and prevent dry burning of the atomizer.

Description

Technical Field

[0001] This invention relates to an electronic atomization device, and more particularly to a liquid balance detection structure, an atomizer, and an electronic atomization apparatus. Background Technology

[0002] With the continuous development of electronic technology, various electronic atomization products have emerged on the market. Most electronic atomization products generate aerosols by atomizing liquid for users to inhale. In the application of electronic atomization products, a common problem is that the liquid may dry out while the atomizer continues to operate, leading to dry burning. Some electronic atomization products use two detection electrodes inserted into the liquid. The remaining liquid level in the atomizer is detected by measuring the resistance between the electrodes. When both detection electrodes are immersed in the liquid, a resistance of a certain value between them indicates sufficient liquid in the atomizer, allowing it to function normally. When either detection electrode is not immersed in the liquid, insufficient liquid is determined, and the atomizer stops operating to prevent dry burning. However, this method is prone to inaccurate detection and misjudgment when the remaining liquid level in the atomizer is low or when the atomizer is tilted.

[0003] In view of this, it is necessary to propose further improvements to the current structure of atomizers. Summary of the Invention

[0004] To solve at least one of the above-mentioned technical problems, the main objective of this invention is to provide a liquid balance detection structure, an atomizer, and an electronic atomization device.

[0005] To achieve the above objectives, one technical solution adopted by the present invention is as follows: A liquid level detection structure is provided, which is applied in an atomizer. The atomizer includes a liquid storage chamber for storing liquid and a base that cooperates with the liquid storage chamber. The liquid level detection structure includes a first detection electrode and a second detection electrode disposed within the base; a first detection electrode sheet electrically connected to the first detection electrode and disposed on the inner peripheral wall of the base and immersable in the liquid stored in the liquid storage chamber; a second detection electrode sheet electrically connected to the second detection electrode and disposed on the inner peripheral wall of the base and immersable in the liquid stored in the liquid storage chamber; and a liquid detection module electrically connected to the first detection electrode and the second detection electrode respectively. The first detection electrode sheet and the second detection electrode sheet are spaced apart and are not on the same plane.

[0006] The first detection electrode includes an electrode body disposed on the base, a connecting arm connected at one end to the electrode body, and a limiting ring connected at the other end of the connecting arm, wherein the limiting ring is electrically connected to the first detection electrode.

[0007] The connecting arm is bent, with one end connected to the inner side of the electrode sheet and the other end connected to the outer side of the limiting ring.

[0008] The limiting ring has a positioning part extending from its inner edge toward the side away from the electrode body for fixing the limiting ring to the first detection electrode.

[0009] The positioning part has three parts, which are evenly distributed along the inner edge of the limiting ring. The inner wall of the positioning part has protrusions or fixing holes.

[0010] The electrode body of the first detection electrode is planar on the surface away from the base, and the electrode body of the second detection electrode is planar on the surface away from the base. The electrode bodies of the first detection electrode and the second detection electrode are arranged parallel to each other.

[0011] The connecting arm of the first detection electrode sheet and the connecting arm of the second detection electrode sheet are arranged opposite to each other, and the limiting ring of the first detection electrode sheet and the limiting ring of the second detection electrode sheet are arranged opposite to each other.

[0012] Wherein, the connecting arm of the first detection electrode is longer than the connecting arm of the second detection electrode, and the limiting ring of the first detection electrode is arranged parallel to the limiting ring of the second detection electrode.

[0013] To achieve the above objectives, another technical solution adopted by the present invention is to provide an atomizer that applies the liquid balance detection structure described above.

[0014] To achieve the above objectives, another technical solution adopted by the present invention is to provide an electronic atomizing device, wherein the electronic atomizing device uses the above-mentioned atomizer.

[0015] The technical solution of this invention mainly includes a first detection electrode and a second detection electrode, a first detection electrode sheet and a second detection electrode sheet, and a liquid detection module. The first detection electrode sheet is electrically connected to the liquid detection module through the first detection electrode, and the second detection electrode sheet is electrically connected to the liquid detection module through the second detection electrode. The first detection electrode sheet and the second detection electrode sheet detect whether they are both immersed in the remaining liquid in the liquid storage chamber and generate corresponding resistance values. The liquid detection module determines the remaining liquid in the liquid storage chamber based on the resistance values ​​between the first detection electrode sheet and the second detection electrode sheet. The first detection electrode sheet and the second detection electrode sheet are both located on the inner peripheral wall of the base, that is, the first detection electrode sheet and the second detection electrode sheet both have liquid detection surfaces, which can uniformly detect the remaining liquid in the atomizer when it is tilted. The detection results are accurate and reliable, avoiding misjudgment of the remaining liquid, thereby accurately controlling the operation of the atomizer and preventing the atomizer from burning dry. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an atomizer according to an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of an atomizer according to an embodiment of the present invention;

[0019] Figure 3 This is an exploded schematic diagram of an atomizer according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the first detection electrode sheet and the second detection electrode sheet according to an embodiment of the present invention.

[0021] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that the descriptions involving "first," "second," etc., in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0024] Unlike existing atomizers, which often suffer from inaccurate liquid level detection and misjudgment when the liquid level is low and the atomizer is tilted, this invention provides a liquid level detection structure designed to accurately detect the liquid level in the atomizer, preventing dry burning and extending its lifespan. The specific structure of this liquid level detection structure is described in the following embodiment.

[0025] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the overall structure of an atomizer according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of an atomizer according to an embodiment of the present invention; Figure 3 This is an exploded schematic diagram of an atomizer according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first and second detection electrode sheets according to an embodiment of the present invention. In this embodiment, the liquid balance detection structure is applied in an atomizer to detect the remaining amount of atomizable liquid in the atomizer, thereby controlling the operation of the atomizer and preventing it from burning out. The atomizer 100 includes a liquid storage tank 110 for storing liquid and a base 120 that cooperates with the liquid storage tank 110. The liquid balance detection structure includes a first detection electrode 141 and a second detection electrode 142 disposed in the base 120, a first detection electrode sheet 131 electrically connected to the first detection electrode 141 and disposed on the inner peripheral wall of the base 120 and immersable in the liquid stored in the liquid storage tank 110, a second detection electrode sheet 132 electrically connected to the second detection electrode 142 and disposed on the inner peripheral wall of the base 120 and immersable in the liquid stored in the liquid storage tank 110, and a liquid detection module electrically connected to the first detection electrode 141 and the second detection electrode 142 respectively. The first detection electrode sheet 131 and the second detection electrode sheet 132 are spaced apart and are not on the same plane.

[0026] In the above embodiments, the liquid storage chamber 110 of the atomizer can store liquid to be atomized, such as e-liquid or e-tar. The first detection electrode 131 and the second detection electrode 132 are both disposed on the inner peripheral wall of the base 120, and the inner peripheral wall of the base 120 and the liquid storage chamber 110 enclose a liquid storage space. The first detection electrode 131 and the second detection electrode 132 are spaced apart along the direction from the base 120 to the liquid storage chamber 110 to avoid direct contact. Both the first detection electrode 131 and the second detection electrode 132 have detection surfaces, so that when the atomizer is tilted, the two detection surfaces can also detect the tilted liquid, which is different from using a detection point to detect the liquid. The base 120 also includes a first detection electrode 141 connected to the first detection electrode 131 and a second detection electrode 142 connected to the second detection electrode 132. When the resistance between the first detection electrode 131 and the second detection electrode 132 is a first resistance value, the liquid detection module determines that the liquid level in the reservoir 110 is sufficient; when the resistance between the first detection electrode 131 and the second detection electrode 132 is a second resistance value, the liquid detection module determines that the liquid level in the reservoir 110 is insufficient. The first resistance value is less than the second resistance value. The first resistance value ranges from 2-5 MΩ, and the second resistance value is much greater than the first resistance value. The purpose of the liquid detection module in this design is to control the atomizer assembly. Specifically, the atomizing assembly 150 of the atomizer is electrically connected to the liquid detection module. When the liquid detection module detects that the liquid level in the reservoir 110 is sufficient, it controls the atomizer to continue working; when the liquid detection module detects that the liquid level in the reservoir 110 is insufficient, it controls the atomizer to stop working. To accurately measure the remaining liquid level in the storage tank 110, the first detection electrode 131 and the second detection electrode 132 are spaced apart and are not on the same plane. In this design, both the first detection electrode 141 and the second detection electrode 142 can be connected to the liquid detection module via the battery rod detection electrode 161 and the PCBA circuit board 162.

[0027] In one specific embodiment, the first detection electrode 131 includes an electrode body 1311 disposed on the base 120, a connecting arm 1312 connected at one end to the electrode body 1311, and a limiting ring 1313 connected to the other end of the connecting arm 1312. The limiting ring 1313 is electrically connected to the first detection electrode 141. The electrode body 1311 has an exposed liquid detection surface, capable of detecting immersed liquids. The limiting ring 1313 can be positioned on the first detection electrode 141 to improve assembly stability.

[0028] In one specific embodiment, the connecting arm 1312 is bent, with one end connected to the inner side of the electrode body 1311 and the other end connected to the outer side of the limiting ring 1313. The connecting arm 1312 connects the electrode body 1311 and the limiting ring 1313 to ensure a stable connection. The electrode body 1311, connecting arm 1312, and limiting ring 1313 are integrally formed.

[0029] Furthermore, the limiting ring 1313 extends along its inner edge away from the electrode plate body 1311, and has a positioning portion 1314 for fixing the limiting ring 1313 to the first detection electrode 141. In this embodiment, the limiting ring 1313 cooperates with the first detection electrode 141, and the positioning portion 1314 improves the stability of the connection between the two. Specifically, the positioning portion 1314 has a protrusion that can abut against the first detection electrode 141. In a parallel embodiment, the positioning portion 1314 has a fixing hole for a screw to pass through. Furthermore, there are three positioning portions 1314, which are evenly distributed along the inner edge of the limiting ring 1313 to improve the stability of the fixation.

[0030] In one specific embodiment, the surface of the electrode body 1311 of the first detection electrode 131 away from the base 120 is planar, and the surface of the electrode body 1311 of the second detection electrode 132 away from the base 120 is planar. The electrode bodies of the first detection electrode 131 and the second detection electrode 142 are arranged parallel to each other. Both the first detection electrode 131 and the second detection electrode 132 are arranged in a ring shape, and they are arranged at different heights within the base 120. When the liquid level is less than that of the first detection electrode 131 (the first detection electrode 131 is positioned higher, i.e., the first detection electrode 131 is closer to the liquid storage chamber 110), the first detection electrode 131 and the second detection electrode 132 are separated, and the resistance between them is infinite, i.e., the resistance at this time is the second resistance value. When the liquid level is greater than that of the first detection electrode 131, the first detection electrode 131 is connected through the liquid-containing second detection electrode 132, and the resistance between them is the first resistance value. Furthermore, the connecting arm 1312 of the first detection electrode 131 and the connecting arm 1312 of the second detection electrode 132 are arranged opposite to each other, and the limiting ring 1313 of the first detection electrode 131 and the limiting ring 1313 of the second detection electrode 132 are arranged opposite to each other. The overall structure is more compact, facilitating the isolation design between the two. Furthermore, the connecting arm 1312 of the first detection electrode 131 is longer than the connecting arm 1312 of the second detection electrode 132, and the limiting ring 1313 of the first detection electrode 131 and the limiting ring 1313 of the second detection electrode 132 are arranged parallel to each other. The first detection electrode 131 and the second detection electrode 132 are spaced apart, resulting in better stability. The parallel arrangement of the limiting ring 1313 of the first detection electrode 131 and the limiting ring 1313 of the second detection electrode 132 facilitates connection with the symmetrically arranged first detection electrode 141 and second detection electrode 142.

[0031] In an embodiment of the present invention, the atomizer 100 utilizes the liquid level detection structure described above. The specific structure of this liquid level detection structure is described in the above embodiment and will not be repeated here. Because the atomizer 100 of this solution utilizes the liquid level detection structure described above, it possesses all the advantages and effects of a liquid level detection structure.

[0032] In an embodiment of the present invention, the electronic atomizing device utilizes the atomizer described above. The specific structure of the atomizer is detailed in the above embodiment and will not be repeated here. Because the electronic atomizing device of this solution utilizes the atomizer described above, it possesses all the advantages and effects of an atomizer.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A liquid balance detection structure, characterized in that, The liquid level detection structure is applied in an atomizer. The atomizer includes a liquid storage tank and a base that cooperates with the liquid storage tank. The liquid level detection structure includes a first detection electrode and a second detection electrode disposed within the base; a first detection electrode sheet electrically connected to the first detection electrode and disposed on the inner peripheral wall of the base, immersable in the liquid stored in the liquid storage tank; a second detection electrode sheet electrically connected to the second detection electrode and disposed on the inner peripheral wall of the base, immersable in the liquid stored in the liquid storage tank; and a liquid detection module electrically connected to the first and second detection electrodes respectively. The first and second detection electrode sheets are spaced apart and are not on the same plane. The measuring electrode includes an electrode body disposed on the base, a connecting arm connected at one end to the electrode body, and a limiting ring connected at the other end of the connecting arm. The limiting ring is electrically connected to the first detection electrode. The electrode body has an exposed liquid detection surface for detecting immersed liquid. The limiting ring is used to limit the first detection electrode. The connecting arm is bent, with one end connected to the inner side of the electrode body and the other end connected to the outer side of the limiting ring. The surface of the electrode body of the first detection electrode away from the base is planar, and the surface of the electrode body of the second detection electrode away from the base is planar. The electrode bodies of the first and second detection electrodes are arranged parallel to each other.

2. The liquid balance detection structure as described in claim 1, characterized in that, The limiting ring extends along its inner edge toward the side away from the electrode body and has a positioning portion for fixing the limiting ring to the first detection electrode.

3. The liquid balance detection structure as described in claim 2, characterized in that, There are three positioning parts, which are evenly distributed along the inner edge of the limiting ring. The inner wall of each positioning part has protrusions or fixing holes.

4. The liquid balance detection structure as described in claim 1, characterized in that, The connecting arm of the first detection electrode is arranged opposite to the connecting arm of the second detection electrode, and the limiting ring of the first detection electrode is arranged opposite to the limiting ring of the second detection electrode.

5. The liquid balance detection structure as described in claim 4, characterized in that, The connecting arm of the first detection electrode is longer than the connecting arm of the second detection electrode, and the limiting ring of the first detection electrode is arranged parallel to the limiting ring of the second detection electrode.

6. An atomizer, characterized in that, The atomizer uses the liquid level detection structure as described in any one of claims 1 to 5.

7. An electronic atomizing device, characterized in that, The electronic atomizing device uses the atomizer as described in claim 6.

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