CN211654867U

CN211654867U - Button cell

Info

Publication number: CN211654867U
Application number: CN202020132634.3U
Authority: CN
Inventors: 刘志伟; 沈立强; 覃昌松; 戴建勇; 曾贤华
Original assignee: Huizhou Everpower Technology Co ltd
Current assignee: Huizhou Everpower Technology Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-10-09
Anticipated expiration: 2030-01-19

Abstract

The utility model discloses a button battery, which comprises a bottom shell, a top shell, a winding core and a sealing rubber ring, wherein the winding core is accommodated in the top shell, the top shell is arranged in the bottom shell, the sealing rubber ring is embedded between the bottom shell and the top shell, and the end part of the top shell is provided with a cutting edge; the cutting edge of the top shell is outwards bent to form a buckle, the side wall of the bottom shell is inwards sunken to form a buckling position, a platform body is arranged on the side wall of the top shell, the cutting edge of the end portion of the bottom shell is inwards bent to form a turned edge, the buckling position and the buckle mutually extrude the lower end portion of the sealing rubber ring, and the turned edge and the platform body mutually extrude the upper end portion of the sealing rubber ring so that the top shell is buckled in the bottom shell. The utility model discloses a setting is detained the position and the lower tip of the mutual extrusion sealing rubber ring of buckle, and turn-up and stage body extrude the upper end of sealing rubber ring each other, can be so that the mutual lock of top shell and drain pan, the condition of breaking away from each other top shell and drain pan avoids appearing for top shell and drain pan are fixed each other betterly, improve the structural stability of battery, improve the finished product quality of battery.

Description

Button cell

Technical Field

The utility model relates to a button cell field especially relates to a button cell.

Background

Button cells are also classified into two major types, chemical cells and physical cells, and the chemical cells are most commonly used. They consist of an anode (positive electrode), a cathode (negative electrode), and an electrolyte solution thereof. The surface of the electrolyte tank is made of stainless steel materials and serves as a positive electrode, a negative electrode of the electrolyte tank is a stainless steel circular cover, a sealing ring is arranged between the positive electrode and the negative electrode and is insulated, the sealing ring is made of nylon, and the sealing ring can play an insulating role and also can prevent electrolyte from leaking. Button cells are in a wide variety, and most of them are named after the materials used, such as silver oxide cells, lithium cells, alkaline manganese cells, and the like.

The existing button cell is generally provided with an upper steel shell and a lower steel shell, and a sealing rubber ring is clamped between the upper steel shell and the lower steel shell. In order to fix the upper steel shell on the lower steel shell better, the upper steel shell and the lower steel shell are usually fixed to each other, and a sealing rubber ring is embedded between the upper steel shell and the lower steel shell, and then glue is applied to achieve the fixing effect. However, the upper and lower steel cases are easily separated in this fixing manner, and the upper and lower steel cases cannot be fixed well, which results in poor structural stability of the battery and reduced quality of the finished battery.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing a button cell, can be so that the mutual lock of top shell and drain pan through the design of structure, avoid appearing the condition that top shell and drain pan break away from each other for top shell and drain pan are reciprocal anchorage betterly, improve the structural stability of battery, improve the finished product quality of battery.

The purpose of the utility model is realized through the following technical scheme:

a button battery comprises a bottom shell, a top shell, a winding core and a sealing rubber ring, wherein the winding core is accommodated in the top shell, the top shell is arranged in the bottom shell, the sealing rubber ring is embedded between the bottom shell and the top shell, and the end part of the top shell is provided with a cutting edge;

the cutting edge of the top shell is outwards bent to form a buckle, the side wall of the bottom shell is inwards sunken to form a buckling position, a platform body is arranged on the side wall of the top shell, the cutting edge of the end portion of the bottom shell is inwards bent to form a turned edge, the buckling position and the buckle mutually extrude the lower end portion of the sealing rubber ring, and the turned edge and the platform body mutually extrude the upper end portion of the sealing rubber ring, so that the top shell is buckled in the bottom shell.

In one embodiment, the buckle has an annular flange structure disposed at an open position of the top case.

In one embodiment, the fastening position is an annular groove, and the annular groove is located on the side wall of the bottom shell.

In one embodiment, the platform body protrudes from the sidewall of the top case, and the platform body is annularly disposed on the sidewall of the top case.

In one embodiment, the stage body has a trapezoidal cross-section.

In one embodiment, the curled edge is provided with a connecting end and a bent end, the connecting end is arranged on the cutting edge of the bottom shell, and the bent end is extruded on the sealing gasket.

In one embodiment, the bead has an arcuate configuration.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

the utility model relates to a button cell, through setting up the lower tip of detaining position and the mutual extrusion sealing rubber ring of buckle, turn-up and the mutual extrusion sealing rubber ring's of stage body upper end can be so that the mutual lock of top shell and drain pan, the condition that top shell and drain pan break away from each other avoids appearing for top shell and drain pan are reciprocal anchorage betterly, improves the structural stability of battery, improves the finished product quality of battery.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a button cell according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of the button cell shown in FIG. 1;

fig. 3 is a partially enlarged schematic view of the button cell shown in fig. 2 at a.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a button cell includes a bottom case 100, a top case 200, a winding core 300 and a sealing rubber ring 400, wherein the winding core 300 is accommodated in the top case 200, the top case 200 is disposed in the bottom case 100, the sealing rubber ring 400 is embedded between the bottom case 100 and the top case 200, and the end of the top case 200 has a cutting edge 210. Note that the bottom shell 100 is used for placing the top shell and the core structure; the top case 200 is used for accommodating a winding core; the winding core 300 is used for realizing the power supply function of the battery; the sealing rubber ring 400 is disposed at a gap between the top case and the bottom case, and is used for sealing the bottom case and the top case, and improving the sealing performance of the battery.

Referring to fig. 3, the cut edge 210 of the top case 200 is bent outward to form a buckle 220, the sidewall 110 of the bottom case 100 is recessed inward to form a buckle position 120, a table 230 is disposed on the sidewall of the top case 200, the cut edge at the end of the bottom case 100 is bent inward to form a bead 130, the buckle position 120 and the buckle 220 mutually press the lower end of the sealing rubber ring 400, and the bead 130 and the table 230 mutually press the upper end of the sealing rubber ring 400, so that the top case 200 is buckled in the bottom case 100.

It should be noted that, the buckle 220 is turned over to form a first buckling portion, the buckle position 120 is recessed inwards to form a second buckling portion, when the bottom shell and the top shell are assembled with each other, the second buckling portion needs to be abutted against the first buckling portion, that is, the second buckling portion is abutted against the sealing rubber ring, and then the sealing rubber ring is abutted against the first buckling portion. Meanwhile, the turned edge 130 of the bottom case is also abutted against the platform 230 of the top case, i.e., the turned edge is extruded on the sealing rubber ring, and then the sealing rubber ring is extruded on the platform, so that the top case can be firmly installed on the bottom case, the top case and the bottom case can be buckled with each other, the situation that the top case and the bottom case are separated from each other is avoided, the top case and the bottom case are well fixed with each other, the structural stability of the battery is improved, and the quality of the finished battery is improved.

It should be noted that the buckle has an annular flange structure, and the annular flange structure is arranged at the opening position of the top shell. So, through setting up the hem structure, can conveniently process the top shell on the one hand, on the other hand can be so that the hem structure carries out the lock with detaining the position, stability when improving the battery assembly also conveniently carries out the assembly of top shell and drain pan.

Referring to fig. 1, the fastening position is an annular groove, and the annular groove is located on a side wall of the bottom case. It should be noted that, by arranging the annular groove, the bottom shell can be conveniently processed, the processing difficulty is reduced, and therefore the cost can be reduced.

It should be noted that the stage body protrudes from the side wall of the top case, and the stage body is annularly disposed on the side wall of the top case. Preferably, the table body has a trapezoidal cross section. So, through setting up annular stage body structure, can be so that turn-up and stage body lock joint each other, strengthen the extrusion to sealed rubber ring for when the leakproofness of battery is better, can strengthen the firm degree of battery structure again.

It should be noted that the curled edge is provided with a connecting end and a bending end, the connecting end is arranged on the cutting edge of the bottom shell, and the bending end is extruded on the sealing gasket. Preferably, the bead has an arcuate configuration. Through setting up the link, can fix the turn-up on the drain pan, through setting up the bending end, can further strengthen the squeezing action to sealed rubber ring, improve the stability of battery structure.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A button battery comprises a bottom shell, a top shell, a winding core and a sealing rubber ring, wherein the winding core is accommodated in the top shell, the top shell is arranged in the bottom shell, the sealing rubber ring is embedded between the bottom shell and the top shell, and the end part of the top shell is provided with a cutting edge; the method is characterized in that:

2. The button cell according to claim 1, wherein the snap has an annular flange structure provided at an open position of the top case.

3. The button cell of claim 1, wherein the snap is an annular groove located on a sidewall of the bottom case.

4. The button cell according to claim 1, wherein the bosses protrude from the side wall of the top case, and the bosses are annularly disposed on the side wall of the top case.

5. Button cell according to claim 1, characterised in that the platform has a trapezoidal cross section.

6. The button cell as defined in claim 1, wherein said curled edge is provided with a connecting end and a bent end, said connecting end is provided on a cut edge of said bottom case, and said bent end is pressed against said sealing gasket.

7. The button cell according to claim 1, wherein the bead has an arc-shaped configuration.