Cylindrical steel shell battery cap structure, cylindrical steel shell battery and detachable assembly structure

Abstract

The utility model relates to a cap structure of a cylindrical steel shell battery, a cylindrical steel shell battery structure and a detachable assembly structure of the cylindrical steel shell battery. The cap structure of the cylindrical steel shell battery comprises an annular sheet body which is in electric contact with a negative conductive column and a side sheet which is fixedly connected to the side part of the annular sheet body, wherein the inner surface of the side sheet can be in electric contact with a negative electrode at the periphery of the upper end of an 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; according to the cap structure of the cylindrical steel shell battery, the cylindrical steel shell battery is reasonable in structural design, convenient to produce and manufacture and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the battery field of electronic cigarette, especially a cap structure of cylindrical steel shell battery, cylindrical steel shell battery structure and cylindrical steel shell battery detachable assembly structure. BACKGROUND

[0002] At present, the cylindrical steel shell battery of the electronic cigarette market is not detachable after being connected to the main machine, but according to the EU new battery (EU) 2023 / 1542 regulation article 11 "detachability and replaceability" requirement innovative design, it is necessary to ensure that the end user can detach and replace at any time within the product life cycle, that is, the battery can be easily detached by the end user without the need for special tools. Under this background, it has become a key problem that the whole machine assembly plant and battery enterprise urgently need to solve.

[0003] In order to realize the positive and negative output of the battery at the same end, the negative line needs to be drawn out from the bottom of the cylindrical steel shell and welded, which is complicated and complex in process, increasing the cost of assembly and the difficulty of realizing the detachability of the battery.

[0004] Therefore, the applicant applied for "cylindrical steel shell detachable battery structure and its production method" publication number CN118367311A in April 2024. The cylindrical steel shell detachable battery structure includes a cylindrical steel shell battery and an FPCA plate installed directly above the cylindrical steel shell battery. The FPCA plate is provided with an opening opposite the positive electrode of the cylindrical steel shell battery. The bottom surface of the FPCA plate is fixedly provided with a conductive reinforcing sheet capable of shielding the opening. The conductive reinforcing sheet is electrically connected with the positive electrode of the FPCA plate bottom surface. The space opposite the inner wall of the opening formed by the conductive reinforcing sheet forms a welding area of the conductive reinforcing sheet and the positive electrode of the cylindrical steel shell battery, so that the welding tool can weld the conductive reinforcing sheet and the positive electrode of the cylindrical steel shell battery through the welding area. The invention can be directly laser welded with the arc side (cylindrical steel shell battery negative electrode upper side wall) of the cap sealing portion of the positive electrode of the cylindrical steel shell battery, without the need for extending the nickel strip (wire) to the bottom of the cylindrical steel shell negative electrode for welding, which can save costs. At the same time, the user of the detachable battery can install and replace the same specification battery on the electronic cigarette product without the need for any special tools. After the end of the battery life cycle, it can be easily disassembled and recycled. The production and assembly process of the invention is simple, the assembly cost is low, the detachable operation is convenient, and the automation is easy to realize. It has practicality and creativity.

[0005] However, the patent still needs to realize the connection and fixation of the battery components through welding, which requires welding equipment and positioning tooling during welding production. The production and assembly process is relatively complex and the manufacturing cost is relatively high. SUMMARY

[0006] In view of the above problems of the prior art, the purpose of the utility model is to provide a cap structure of cylindrical steel shell battery, a cylindrical steel shell battery structure and a production method thereof, which are reasonable in design, convenient to produce and manufacture, and low in cost.

[0007] The utility model discylinder steel shell battery's cap structure, its characterized in that: including the annular sheet body for with negative pole conductive column electricity contact and the lateral sheet of fixed connection in annular sheet body side department and the inner surface can with the negative pole of the outer circle of uncoated cylindrical steel shell battery cell upper end electric contact, the center of annular sheet body has the through -hole for the positive pole conductive column to pass through to with the positive pole cap of uncoated cylindrical steel shell battery cell upper end center electric contact, and annular sheet body does not contact with the positive pole cap of uncoated cylindrical steel shell battery cell.

[0008] Preferably, the outer diameter of the annular sheet body is the same as the diameter of the uncoated cylindrical steel shell battery cell, and the diameter of the through hole is 0.5-1.0mm larger than the diameter of the positive pole cap of the uncoated cylindrical steel shell battery cell.

[0009] Preferably, the annular sheet body has an annular plane with a width of 1.8-2.5mm to enable good electrical contact with the negative pole conductive column.

[0010] Preferably, the lateral sheet is arranged in several on the entire circumferential direction, and the several lateral sheets clamp the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell.

[0011] Preferably, the lateral sheet has an inner recess capable of sinking into the annular rolling groove of the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell, and the inner recess can clamp the cap on the upper end of the uncoated cylindrical steel shell battery cell.

[0012] Preferably, the annular sheet body is made of a conductive material with a thickness of 0.6mm, and the lateral sheet is a claw-shaped elastic sheet treated with nickel or gold plating.

[0013] Preferably, the lateral sheet is a circular tube body capable of tightly fitting on the upper end of the uncoated cylindrical steel shell battery cell.

[0014] Preferably, the circular tube body and the annular sheet body are integrally stamped to form the cap, and the cap is made of stainless steel with nickel plating and processed by stamping and stretching.

[0015] The utility model discylinder steel shell battery structure, cylindrical steel shell battery includes uncoated cylindrical steel shell battery cell, the cap and heat shrink sleeve, the cap is installed in the upper end of uncoated cylindrical steel shell battery cell, and the heat shrink sleeve is sleeved on the outer periphery of the uncoated cylindrical steel shell battery cell and the cap.

[0016] The utility model discylinder steel shell battery detachable assembly structure, its characterized in that: including the dylinder steel shell battery and the equipment end battery holder of installing on the upper end of dylinder steel shell battery, the positive pole conductive column and the negative pole conductive column are fixedly installed on the equipment end battery holder, the inner end of positive pole conductive column and the positive cap of uncoated dylinder steel shell battery electric contact, the inner end of negative pole conductive column and annular piece body electric contact.

[0017] The utility model discylinder steel shell battery structure's production method, prefabricate the cap, install the cap on the upper end of uncoated dylinder steel shell battery, finally on the outer periphery of uncoated dylinder steel shell battery and cap, the hot shrinkage of the heat shrink sleeve is placed.

[0018] The utility model discylinder steel shell battery structure mainly comprises uncoated dylinder steel shell battery, cap and heat shrink sleeve, when producing and assembling, prefabricate the cap, install the cap on the upper end of uncoated dylinder steel shell battery, finally on the outer periphery of uncoated dylinder steel shell battery and cap, the hot shrinkage of the heat shrink sleeve is placed, and the production method of the above-mentioned cylinder steel shell battery structure does not need additional welding procedure, and production, assembly are convenient, fast and low in cost.

[0019] The utility model discylinder steel shell battery detachable assembly structure solves the problem that the electronic cigarette battery is not detachable at the host end user, and by adopting uncoated dylinder steel shell battery + cap structure + heat shrink sleeve composition, the positive pole conductive column B+ and negative pole conductive column B- of equipment battery holder are connected and matched, so that the user is simple to replace, has anti-vibration, drop and does not damage the battery, improves the reliability, stability and safety of battery contact. ACCURACY OF DRAWINGS

[0020] Figure 1 It is the perspective drawing of one embodiment of the cap of the utility model,

[0021] Figure 2 、 3 It is the perspective drawing of two views of another embodiment of the cap of the utility model,

[0022] Figure 4 It is the perspective drawing of the cylinder steel shell battery structure of one embodiment of the utility model,

[0023] Figure 5 It is Figure 4 The explosion diagram,

[0024] Figure 6 It is Figure 4 The sectional view,

[0025] Figure 7 It is Figure 6 The partial view,

[0026] Figure 8is another embodiment of the utility model cylinder steel shell battery structure's perspective view;

[0027] Figure 9 is Figure 8 the explosion map;

[0028] Figure 10 is Figure 8 the section view;

[0029] Figure 11 is Figure 10 the partial view. DETAILED DESCRIPTION

[0030] The utility model will be further explained below combining with the drawings and examples.

[0031] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise indicated, 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 belongs.

[0032] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application; As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or their combination.

[0033] The cap structure of the utility model cylinder steel shell battery includes annular sheet body 1 for electric contact with negative electrode conductive column B-, and side sheet 3 fixedly connected on the side of annular sheet body 1 and the inner surface of which can be in electric contact with the negative electrode 6 on the outer periphery of the upper end of uncoated cylinder steel shell battery cell 2, the center of annular sheet body 1 has through hole 5 for positive electrode conductive column B+ to pass through to be in electric contact with the positive electrode cap 4 in the center of the upper end of uncoated cylinder steel shell battery cell, and annular sheet body 1 is not in contact with the positive electrode cap 4 of uncoated cylinder steel shell battery cell.

[0034] The above-mentioned uncoated cylinder steel shell battery cell 2 is a self-produced piece or a commercially available component, which is a cylinder, and the outer peripheral shell is a negative electrode 6, and the center of the upper end is a positive electrode cap 4, and the specific internal structure is not repeated here.

[0035] The negative electrode conductive column B- and the positive electrode conductive column B+ are fixed on the equipment end (which can be an electronic cigarette), or the negative electrode conductive column B- and the positive electrode conductive column B+ are fixed on the cover-shaped battery seat 9 of the equipment end.

[0036] The above-mentioned side sheet 3 and annular sheet body 1 can be integrally stamped (as shown in Figure 1 ), or can be integrally formed by welding (as shown inFigure 2 、 3 As shown in FIG. 1, the side piece 3 is arranged on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2.

[0037] As shown in FIG. 2, the side piece 3 is arranged on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2. Figure 2 、 3 As shown in FIG. 3, the side piece 3 is arranged on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2. Figure 2 、 3 As shown in FIG. 4, the side piece 3 is arranged on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2.

[0038] As shown in FIG. 5, the side piece 3 is arranged on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2.

[0039] As shown in FIG. 6, the side piece 3 is arranged on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2.

[0040] As shown in FIG. 7, the side piece 3 is arranged on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2. Figure 1 As shown in FIG. 8, the side piece 3 is arranged on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2.

[0041] As shown in FIG. 9, the side piece 3 is arranged on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2.

[0042] As shown in FIG. 10, the side piece 3 is arranged on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2.

[0043] The outer diameter of the ring-shaped sheet 1 of the above two embodiments is the same as or equivalent to the diameter of the uncoated cylindrical steel shell battery cell (with a size error of plus or minus 0.1 mm, etc.), and the diameter of the through hole 5 is greater than the diameter of the positive cap 4 of the uncoated cylindrical steel shell battery cell by 0.5-1.0 mm, so that the ring-shaped sheet 1 in electrical contact with the negative electrode of the battery cell has a safety distance from the positive cap 4 of the uncoated cylindrical steel shell battery cell (i.e., the positive electrode of the battery cell).

[0044] In order to ensure good contact, the above-mentioned ring-shaped sheet has a ring-shaped flat surface 10 with a width of 1.8-2.5 mm, which is a flat surface that can be in good electrical contact with the negative electrode conductive column B- to achieve negative electrode output.

[0045] The above-mentioned dimensions are case dimensions, which can be determined according to different specifications of uncoated cylindrical steel shell battery cells to achieve product application compatible with various specifications of uncoated cylindrical steel shell battery cells.

[0046] The cylindrical steel shell battery structure (as shown in Figures 4-11 The cylindrical steel shell battery includes an uncoated cylindrical steel shell battery cell 2, the cap A, and a heat-shrinkable sleeve 11, the cap A is installed at the upper end of the uncoated cylindrical steel shell battery cell, and the heat-shrinkable sleeve 11 (cylindrical thin film) is sleeved on the outer periphery of the uncoated cylindrical steel shell battery cell 2 and the cap A.

[0047] The cap A includes a ring-shaped sheet 1 for electrical contact with the negative electrode conductive column B- and a side sheet 3 fixedly connected to the side of the ring-shaped sheet 1 and having an inner surface capable of being in electrical contact with the negative electrode 6 of the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell 2, the center of the ring-shaped sheet 1 has a through hole 5 for the positive electrode conductive column B+ to pass through to be in electrical contact with the positive cap 4 at the center of the upper end of the uncoated cylindrical steel shell battery cell, and the ring-shaped sheet 1 does not contact the positive cap 4 of the uncoated cylindrical steel shell battery cell, the cylindrical steel shell battery structure solves the problem that the positive and negative electrodes of the cylindrical steel shell battery cell cannot be output from the same end, and facilitates the B+, B- POGO PIN connector at the equipment end to draw the positive and negative electrodes from the same end of the battery to provide power for the equipment, reduces the complexity and process complexity of the negative electrode wire at the equipment end being drawn from the bottom of the cylindrical steel shell and being welded, and reduces the assembly cost and the difficulty of battery disassembly.

[0048] The cylindrical steel shell battery dismountable assembly structure (as shown in Figures 4-11 The user can install and replace the same specification battery on the electronic cigarette product without using any special tool, and after the battery life cycle ends, it is more convenient to disassemble and recycle; the cylindrical steel shell battery production and assembly process is particularly simple, the assembly and material cost are low, the dismountable operation is convenient and easy to realize automation, and the cylindrical steel shell battery has practicality and creativity.

[0049] The production method of the cylindrical steel shell battery structure is that the cap A is prefabricated, the cap A is installed on the upper end of the uncoated cylindrical steel shell battery cell, and finally the heat shrink sleeve 11 is sleeved on the outer periphery of the uncoated cylindrical steel shell battery cell 2 and the cap A. The 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 production automation is easy to realize.

[0050] The heat shrink sleeve can be PET material (i.e. polyethylene terephthalate plastic film), which plays the roles of insulation and fixation of the uncoated cylindrical steel shell battery cell and the outside, and can print the related information content of the battery.

[0051] The detachable assembly structure of the cylindrical steel shell battery comprises the cylindrical steel shell battery and a device end battery seat 9 installed on the upper end of the cylindrical steel shell battery. Figure 6 The inner end of the positive electrode conductive column B+ (i.e. the inner side of the positive electrode conductive column B+) is in electrical contact with the positive electrode cap 4 of the uncoated cylindrical steel shell battery cell. Figure 6 The inner end of the negative electrode conductive column B- (i.e. the inner side of the negative electrode conductive column B-) is in electrical contact with the annular sheet body 1.

[0052] In the description of the present application, it should be explained that the positions or position relationships indicated by the terms "upper", "lower" and the like are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected: it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0053] An apparatus can be a means for performing any of the operations described herein. An apparatus can be a means for performing any of the operations described herein. These and other means-plus-function or step-plus-function elements can be set forth using, in some embodiments, function blocks. The means can be implemented using hardware, firmware, software and / or any combination thereof.

Claims

1. A cap structure for a cylindrical steel-cased battery, characterized in that: It includes an annular plate for electrical contact with the negative electrode conductive post and a side plate fixedly connected to the side of the annular plate, the inner surface of which can make electrical contact with the negative electrode on the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell. The center of the annular plate has a through hole for the positive electrode 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.

2. The cap structure of the cylindrical steel-cased battery according to claim 1, 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.

3. The cap structure of the cylindrical steel-cased battery according to claim 1, 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.

4. The cap structure of the cylindrical steel-cased battery according to claim 1, 2, or 3, characterized in that: The side plates are evenly distributed in a number throughout the circumference, and the number of side plates clamps the outer periphery of the upper end of the uncoated cylindrical steel shell battery cell.

5. The cap structure of the cylindrical steel-cased battery according to claim 4, 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.

6. The cap structure of the cylindrical steel-cased battery according to claim 5, 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.

7. The cap structure of the cylindrical steel-cased battery according to claim 1, 2 or 3, characterized in that: The side plate is a cylindrical tube that can be tightly fitted onto the upper end of an uncoated cylindrical steel-shell battery cell.

8. The cap structure of the cylindrical steel-cased battery according to claim 7, characterized in that: The cylindrical body and the annular sheet are integrally stamped to form a cap, which is made of stainless nickel-plated material with a thickness of 0.1mm through stamping and stretching.

9. 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 1-8, 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.

10. 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 9 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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