Claw-shaped elastic piece type cap, cylindrical steel shell battery structure and detachable assembly structure

Abstract

The utility model relates to a claw-shaped elastic piece type cap, a cylindrical steel shell battery structure and a detachable assembly structure, the side piece is fixedly connected to the side part of the annular piece body, and the inner surface of the side piece can be in electric contact with a negative electrode at the periphery of the upper end of the uncoated cylindrical steel shell battery cell; the center of the annular sheet body is provided with a through hole through which the positive conductive column passes so as to be in electric contact with a positive cap at the center of the upper end of the uncoated cylindrical steel shell battery cell, and the annular sheet body is not in contact with the positive cap of the uncoated cylindrical steel shell battery cell; a plurality of side sheets are uniformly distributed in the whole circumferential direction, the plurality of side sheets clamp the periphery of the upper end of the uncoated cylindrical steel shell battery cell, and the side sheets and the annular sheet body are integrally punched and formed or are separately welded into a whole; the claw-shaped elastic piece type cap, the cylindrical steel shell battery structure and the detachable assembly structure are reasonable in design, convenient to produce and manufacture and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of batteries for electronic cigarettes, and in particular to a claw-shaped spring cap, a cylindrical steel shell battery structure, and a detachable assembly structure. Background Technology

[0002] Currently, cylindrical steel-cased batteries in the e-cigarette market are not removable once installed in the device. However, in accordance with Article 11 of the EU's new battery regulation (EU) 2023 / 1542, which requires "removability and replaceability," innovative designs are needed to ensure that end users can easily remove and replace the battery at any time during the product's lifecycle. This means that end users should be able to easily remove the battery without the need for special tools. Against this backdrop, this has become a critical issue that OEMs and battery manufacturers urgently need to address.

[0003] To achieve positive and negative outputs at the same end of the battery, the negative wire needs to be led out from the bottom of the cylindrical steel shell and welded, which is a complicated and cumbersome process, increasing assembly costs and making it more difficult to achieve battery detachability.

[0004] Therefore, in April 2024, the applicant applied for a patent for "Cylindrical Steel-Cast Removable Battery Structure and Manufacturing Method Thereof" (publication number CN118367311A). This cylindrical steel-cased removable battery structure includes a cylindrical steel-cased battery cell and an FPCA plate mounted directly above the battery cell. The FPCA plate has an opening directly opposite the positive electrode of the cylindrical steel-cased battery cell. A conductive reinforcing sheet that can block the opening is fixed on the bottom surface of the FPCA plate. The conductive reinforcing sheet is electrically connected to the positive electrode on the bottom surface of the FPCA plate. The space enclosed by the inner peripheral wall of the opening on the conductive reinforcing sheet forms a welding area between the conductive reinforcing sheet and the positive electrode of the cylindrical steel-cased battery cell, allowing welding tools to pass through the welding area to weld the conductive reinforcing sheet to the cylindrical steel-cased battery cell. The positive electrode of the core is welded; this invention can directly weld to the arc-shaped side of the positive electrode cap of the cylindrical steel shell battery cell (the upper peripheral wall of the negative electrode of the cylindrical steel shell battery cell) using laser welding, without the need to extend the nickel strip (wire) to the bottom of the negative electrode of the cylindrical steel shell for welding, which can save costs. At the same time, users of this removable battery can install and replace batteries of the same specification on electronic cigarette products without the need for any special tools. After the battery life ends, it can be easily disassembled and recycled in an environmentally friendly manner. This invention patent has a simple production and assembly process, low assembly cost, convenient disassembly operation, and easy automation, and has practicality and creativity.

[0005] However, this patent still requires welding to connect and fix the components in the battery. Welding production requires welding equipment and positioning fixtures, making the production and assembly process more complex and the manufacturing cost higher. Summary of the Invention

[0006] In view of the above-mentioned problems of the prior art, the purpose of this utility model is to provide a claw-shaped spring cap, a cylindrical steel shell battery structure and a detachable assembly structure. The claw-shaped spring cap, cylindrical steel shell battery structure and detachable assembly structure are reasonably designed, easy to manufacture and have low cost.

[0007] This utility model features a claw-shaped spring cap, characterized in that it includes an annular plate for electrical contact with the negative conductive post and a side plate fixedly connected to the side of the annular plate, the side plate having an inner surface capable of electrical contact with the negative electrode on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell. The annular plate has a through hole at its center for the positive conductive post to pass through and make electrical contact with the positive electrode cap at the center of the upper end of the uncoated cylindrical steel shell battery cell. The annular plate does not contact the positive electrode cap of the uncoated cylindrical steel shell battery cell. Several side plates are evenly distributed along the entire circumference, and the several side plates clamp the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell. The side plates and the annular plate are either integrally stamped or separately welded together.

[0008] Preferably, the side plate has an inner recess that can be inserted into the annular groove on the outer periphery of the upper end of the uncoated cylindrical steel shell cell, and the inner recess can clamp the cap onto the upper end of the uncoated cylindrical steel shell cell.

[0009] Preferably, the aforementioned side plates have three.

[0010] Preferably, the upper part of the side piece has a connecting piece for welding to the lower surface of the annular piece.

[0011] Preferably, the outer diameter of the annular sheet is the same as the diameter of the uncoated cylindrical steel shell battery cell, and the diameter of the through hole is 0.5-1.0 mm larger than the diameter of the positive electrode cap of the uncoated cylindrical steel shell battery cell.

[0012] Preferably, the annular sheet has an annular plane with a width of 1.8-2.5 mm to enable good electrical contact with the negative electrode conductive post.

[0013] Preferably, the annular sheet is made of a conductive material with a thickness of 0.6 mm, and the side pieces are claw-shaped springs made of stainless steel plated with nickel or gold.

[0014] This utility model relates to a cylindrical steel-cased battery structure, wherein the cylindrical steel-cased battery includes an uncoated cylindrical steel-cased cell, a cap, and a heat-shrink tubing. The cap is installed on the upper end of the uncoated cylindrical steel-cased cell, and the heat-shrink tubing is fitted around the outer periphery of the uncoated cylindrical steel-cased cell and the cap.

[0015] The present invention relates to a detachable assembly structure for a cylindrical steel-cased battery, characterized in that it includes the aforementioned cylindrical steel-cased battery and a device-end battery holder mounted on the upper end of the cylindrical steel-cased battery. A positive electrode conductive post and a negative electrode conductive post are fixedly provided on the device-end battery holder. The inner end of the positive electrode conductive post is in electrical contact with the positive electrode cap of the uncoated cylindrical steel-cased battery cell, and the inner end of the negative electrode conductive post is in electrical contact with the annular sheet.

[0016] The present invention relates to a method for producing a cylindrical steel-cased battery structure, which involves prefabricating the cap, installing the cap on the upper end of an uncoated cylindrical steel-cased battery cell, and finally fitting a heat-shrinkable sleeve onto the outer periphery of the uncoated cylindrical steel-cased battery cell and the cap.

[0017] This utility model of cylindrical steel-shell battery structure mainly consists of an uncoated cylindrical steel-shell cell, a cap, and a heat-shrink tubing. During production and assembly, the cap is prefabricated and installed on the upper end of the uncoated cylindrical steel-shell cell. Finally, the heat-shrink tubing is fitted onto the outer periphery of the uncoated cylindrical steel-shell cell and the cap. The production method of the above-mentioned cylindrical steel-shell battery structure does not require additional welding processes, and the production and assembly are convenient, quick, and low-cost.

[0018] This utility model's detachable cylindrical steel-cased battery assembly structure solves the problem of users being unable to disassemble electronic cigarette batteries at the device end. By using an uncoated cylindrical steel-cased battery cell + cap structure + heat-shrink tubing, which connects with the positive conductive post B+ and negative conductive post B- of the device's battery holder, it simplifies battery replacement for users and provides resistance to vibration, drops, and damage without harming the battery. It also improves the reliability, stability, and safety of battery contact. Attached Figure Description

[0019] Figure 1 , 2 This is a perspective view of the cap of this utility model from two angles;

[0020] Figure 3 This is a perspective view of the cylindrical steel-cased battery structure of this utility model;

[0021] Figure 4 yes Figure 3 Exploded view;

[0022] Figure 5 yes Figure 4 Cross-sectional view;

[0023] Figure 6 yes Figure 5 A partial view;

[0024] Figure 7 This is a perspective view of another embodiment of the cap. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this application; as used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise; furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] The cap structure of this utility model of cylindrical steel shell battery includes an annular plate 1 for electrical contact with the negative electrode conductive post B- and a side plate 3 fixedly connected to the side of the annular plate 1 and whose inner surface can make electrical contact with the negative electrode 6 on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2. The center of the annular plate 1 has a through hole 5 for the positive electrode conductive post B+ to pass through and make electrical contact with the positive electrode cap 4 at the upper end center of the uncoated cylindrical steel shell battery cell. The annular plate 1 does not contact the positive electrode cap 4 of the uncoated cylindrical steel shell battery cell.

[0029] The aforementioned uncoated cylindrical steel-cased battery cell 2 is either a self-produced component or a commercially available part. It is cylindrical, with its outer shell serving as the negative electrode 6 and its upper end center serving as the positive electrode cap 4. The specific internal structure will not be described in detail here.

[0030] The negative conductive post B- and the positive conductive post B+ are fixed to the device end (which can be an electronic cigarette), or the negative conductive post B- and the positive conductive post B+ are fixed to the cover-shaped battery holder 9 at the device end.

[0031] The aforementioned side piece 3 and the annular piece 1 can be integrally stamped (e.g.) Figure 7 (as shown), or it can be formed by welding separate parts together (such as...). Figure 1 , 2 (As shown).

[0032] The aforementioned side plates 3 are evenly distributed in several directions around the entire circumference, such as 3, 4 or 6. The side plates clamp the outer circumference of the upper end of the uncoated cylindrical steel shell battery cell. The side plates can be flat elastic plates or arc-shaped elastic plates. The side plates clamp the outer circumference of the upper end of the uncoated cylindrical steel shell battery cell. The diameter of the circle formed by the inner circumferential walls of the side plates is slightly smaller than the diameter of the upper end of the uncoated cylindrical steel shell battery cell. That is, the uncoated cylindrical steel shell battery cell is clamped by the elasticity of the side plates.

[0033] Alternatively, the side plate may have a recessed portion 7 that can fit into the annular groove 8 on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell. The shape of the recessed portion 7 may match or be close to the shape of the annular groove 8. Specifically, the recessed portion 7 is arc-shaped. The recessed portion 7 can clamp the cap onto the upper end of the uncoated cylindrical steel shell battery cell. Through the cooperation between the recessed portion 7 and the annular groove 8, the contact area between the side plate and the upper end of the uncoated cylindrical steel shell battery cell is increased, resulting in higher stability of the installation of the side plate (and the cap) and the uncoated cylindrical steel shell battery cell.

[0034] The upper part of the aforementioned side plate has a connecting piece 12 for welding or bonding to the lower surface of the annular plate (e.g., Figure 1 , 2 (As shown).

[0035] In this embodiment, the annular sheet 1 is made of a conductive material with a thickness of 0.1mm-1.0mm (such as stainless steel, nickel-plated or gold-plated stainless steel, etc.), and the side sheet is a claw-shaped spring sheet treated with nickel-plated or gold-plated stainless steel. The thickness of the side sheet can be 0.05-0.3mm, such as 0.1mm, and the width is 2.5-3.5mm.

[0036] The outer diameter of the annular plate 1 is the same as or equivalent to the diameter of the uncoated cylindrical steel shell battery cell (with a size error of ±0.1mm, etc.). The diameter of the through hole 5 is 0.5-1.0mm larger than the diameter of the positive electrode cap 4 of the uncoated cylindrical steel shell battery cell, so as to create a safe distance between the annular plate 1, which is in electrical contact with the negative electrode of the battery cell, and the positive electrode cap 4 of the uncoated cylindrical steel shell battery cell (i.e., the positive electrode of the battery cell).

[0037] To ensure good contact, the aforementioned annular plate has an annular plane 10 with a width of 1.8-2.5mm. This annular plane 10 is a plane, which can make good electrical contact with the negative electrode conductive post B- to achieve negative electrode output.

[0038] The dimensions mentioned above are example dimensions and can be determined according to different specifications of uncoated cylindrical steel shell cells to achieve product applications compatible with multiple specifications of uncoated cylindrical steel shell cells.

[0039] This utility model relates to a cylindrical steel-cased battery structure (such as...). Figure 4-6 As shown, the cylindrical steel-cased battery includes an uncoated cylindrical steel-cased cell 2, a cap A, and a heat-shrinkable sleeve 11. The cap A is installed on the upper end of the uncoated cylindrical steel-cased cell, and the heat-shrinkable sleeve 11 (cylindrical thin film) is sleeved on the outer periphery of the uncoated cylindrical steel-cased cell 2 and the cap A.

[0040] The cap A includes an annular plate 1 for electrical contact with the negative conductive post B- and a side plate 3 fixedly connected to the side of the annular plate 1, the side of which can make electrical contact with the negative electrode 6 on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2. The center of the annular plate 1 has a through hole 5 for the positive conductive post B+ to pass through and make electrical contact with the positive cap 4 at the center of the upper end of the uncoated cylindrical steel shell battery cell. The annular plate 1 does not contact the positive cap 4 of the uncoated cylindrical steel shell battery cell. The cylindrical steel shell battery structure of this utility model solves the problem that the positive and negative electrodes of the cylindrical steel shell battery cell cannot be output from the same end. It facilitates the B+ and B- POGO PIN connectors at the device end to lead out the positive and negative electrodes from the same end of the battery to provide power to the device. It reduces the cumbersome process and complexity of the device end negative electrode line having to be led out and soldered from the bottom of the cylindrical steel shell, and reduces the assembly cost and the difficulty of making the battery detachable.

[0041] This utility model relates to a detachable assembly structure for a cylindrical steel-cased battery (such as...). Figure 4-6 As shown, users can install and replace batteries of the same specifications on electronic cigarette products without using any special tools. After the battery's life cycle ends, it is easier to disassemble and recycle in an environmentally friendly manner. The production and assembly process of the cylindrical steel shell battery of this utility model is particularly simple, with low assembly and material costs. It is easy to disassemble and operate, and can be easily automated. It is both practical and innovative.

[0042] The production method of this cylindrical steel shell battery structure involves prefabricating the cap A, installing the cap on the upper end of the uncoated cylindrical steel shell battery cell, and finally fitting the heat-shrinkable sleeve 11 onto the outer periphery of the uncoated cylindrical steel shell battery cell 2 and the cap A. This cylindrical steel shell battery assembly process is simple, the uncoated cylindrical steel shell battery cell 2 and the cap A form a stable whole, the structure is reliable and stable, and it is easy to automate the production.

[0043] The aforementioned heat shrink tubing can be made of PET material (i.e., polyethylene terephthalate plastic film), serving as insulation and fixation between the uncoated cylindrical steel-cased battery cell and the outside, as well as allowing for the printing of battery-related information on the heat shrink tubing.

[0044] This utility model relates to a detachable assembly structure for a cylindrical steel-cased battery, comprising the aforementioned cylindrical steel-cased battery and a device-end battery holder 9 mounted on the upper end of the cylindrical steel-cased battery. The device-end battery holder 9 is fixedly provided with a positive conductive post B+ and a negative conductive post B-. The inner end of the positive conductive post B4 (i.e., Figure 6 The inner part of the positive electrode conductive post B+ is in electrical contact with the positive electrode cap 4 of the uncoated cylindrical steel shell battery cell, and the inner end of the negative electrode conductive post B- (i.e. Figure 6 The inner part of the positive electrode conductive post B- is in electrical contact with the annular plate 1.

[0045] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0046] The apparatus includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A claw-shaped spring-loaded cap, characterized in that: The device includes an annular plate for electrical contact with the negative conductive post and a side plate fixedly connected to the side of the annular plate, the side plate having an inner surface capable of electrical contact with the negative electrode on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell. The annular plate has a through hole at its center for the positive conductive post to pass through and make electrical contact with the positive electrode cap at the center of the upper end of the uncoated cylindrical steel shell battery cell. The annular plate does not contact the positive electrode cap of the uncoated cylindrical steel shell battery cell. Several side plates are evenly distributed around the entire circumference, and the several side plates clamp the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell. The side plates and the annular plate are either integrally stamped or separately welded together.

2. The claw-shaped spring-loaded cap according to claim 1, characterized in that: The side plate has an inner recess that can be inserted into the annular groove on the outer periphery of the upper end of the uncoated cylindrical steel shell cell. This inner recess can clamp the cap onto the upper end of the uncoated cylindrical steel shell cell.

3. The claw-shaped spring-loaded cap according to claim 1, characterized in that: The side plate has three.

4. The claw-shaped spring cap according to claim 1, characterized in that: The upper part of the side plate has a connecting piece for welding to the lower surface of the annular plate.

5. The claw-shaped spring-loaded cap according to claim 1, 2, 3 or 4, characterized in that: The outer diameter of the annular sheet is the same as the diameter of the uncoated cylindrical steel shell battery cell, and the diameter of the through hole is 0.5-1.0 mm larger than the diameter of the positive electrode cap of the uncoated cylindrical steel shell battery cell.

6. The claw-shaped spring cap according to claim 5, characterized in that: The annular plate has an annular plane with a width of 1.8-2.5 mm to enable good electrical contact with the negative electrode conductive post.

7. The claw-shaped spring-loaded cap according to claim 4, characterized in that: The annular sheet is made of a conductive material with a thickness of 0.6 mm, and the side pieces are claw-shaped springs made of stainless steel plated with nickel or gold.

8. A cylindrical steel-cased battery structure, characterized in that: The cylindrical steel-cased battery includes an uncoated cylindrical steel-cased cell, a cap and heat-shrink tubing as described in any one of claims 1-7, wherein the cap is installed on the upper end of the uncoated cylindrical steel-cased cell, and the heat-shrink tubing is fitted around the outer periphery of the uncoated cylindrical steel-cased cell and the cap.

9. A detachable assembly structure for a cylindrical steel-cased battery, characterized in that: The invention includes the use of the cylindrical steel-cased battery as described in claim 8 and a device-end battery holder mounted on the upper end of the cylindrical steel-cased battery. The device-end battery holder is fixedly provided with a positive electrode conductive post and a negative electrode conductive post. The inner end of the positive electrode conductive post is in electrical contact with the positive electrode cap of the uncoated cylindrical steel-cased battery cell, and the inner end of the negative electrode conductive post is in electrical contact with the annular sheet.

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