CN220604807U

CN220604807U - Button cell and button cell seat

Info

Publication number: CN220604807U
Application number: CN202322196254.2U
Authority: CN
Inventors: 黄运兴; 文彪; 温芮
Original assignee: Dongguan Hengyuan New Materials Co ltd
Current assignee: Dongguan Hengyuan New Materials Co ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-03-15
Anticipated expiration: 2033-08-15

Abstract

The utility model belongs to the technical field of button cells, and particularly relates to a button cell and a button cell seat, wherein the button cell comprises an anode shell, a cathode shell, an electric core, a sealing connecting piece, a first gasket and a second gasket, the sealing connecting piece is connected with the inner wall of the anode shell, and the sealing connecting piece is also connected with the outer ring of the cathode shell; the positive electrode shell and the negative electrode shell are connected with each other through a sealing connecting piece to form a cavity, the battery cell is accommodated in the cavity, the first gasket is arranged between the battery cell and the positive electrode shell, and the second gasket is arranged between the battery cell and the negative electrode shell; the phenomenon that the shell is cracked due to uneven internal pressure distribution caused by overlarge edge pressure in the button battery can be effectively improved, the capacity of the inside of the button battery is improved, the quality of the button battery is enhanced, and the button battery has extremely high practicability.

Description

Button cell and button cell seat

Technical Field

The utility model relates to the technical field of button cells, in particular to a button cell and a button cell seat.

Background

Button cells (Button cells), also known as Button cells, are cells having a larger outer dimension, typically a larger diameter and a thinner thickness. The button cell is widely applied to various miniature electronic products because of smaller body shape, and is generally used as a backup power supply of various electronic products. Button cells are classified into chemical cells and physical cells, wherein the chemical cells are most commonly used and mainly comprise an anode, a cathode and electrolyte thereof.

At present, the phenomenon that the battery shell is easy to crack due to uneven internal pressure distribution and overlarge edge pressure of the existing button battery reduces the capacity of the button battery. Therefore, it is necessary to design a button cell and a button cell holder to overcome the defects in the prior art.

Disclosure of Invention

The utility model aims to provide a button cell and a button cell seat, and aims to solve the technical problems that in the prior art, the shell is cracked due to the fact that the internal pressure of the button cell is uniformly distributed and the edge pressure is too high, and the capacity of the button cell is reduced.

In order to achieve the above purpose, the embodiment of the utility model provides a button cell, which comprises a positive electrode shell, a negative electrode shell, an electric core, a sealing connecting piece, a first gasket and a second gasket, wherein the sealing connecting piece is connected with the inner wall of the positive electrode shell, and the sealing connecting piece is also connected with the outer ring of the negative electrode shell; the battery cell comprises a battery cell, a first gasket, a second gasket, a positive electrode shell, a negative electrode shell and a sealing connecting piece, wherein the positive electrode shell and the negative electrode shell are connected with each other through the sealing connecting piece to form a cavity, the battery cell is accommodated in the cavity, the first gasket is arranged between the battery cell and the positive electrode shell, and the second gasket is arranged between the battery cell and the negative electrode shell.

Optionally, the positive electrode shell is arranged in a boss, and the end face of the boss is provided with a chamfer.

Optionally, the first gasket is arranged in an arc shape.

Optionally, a first annular limiting groove is formed in the inner wall of the positive electrode shell, a second annular limiting groove is formed in the outer wall of the negative electrode shell, and the inner side and the outer side of the sealing connecting piece are fixed to the second annular limiting groove and the first annular limiting groove.

Optionally, the sealing connection is a non-conductive material.

Optionally, the thickness interval of the first gasket and the second gasket is 0.02-0.1mm.

The button battery seat comprises a battery base, a positive electrode cover and a negative electrode cover, wherein the battery base is used for installing the button battery, the positive electrode cover is clamped on the top side of the battery base, a first elastic sheet is arranged in the middle of the positive electrode cover, and the first elastic sheet is obliquely arranged downwards; the negative electrode cover is clamped on the top side of the battery base, a second elastic sheet is arranged in the middle of the negative electrode cover and is arranged in an upward inclined mode, and the upper side and the lower side of the button battery are respectively abutted to the first elastic sheet and the second elastic sheet.

Optionally, the both sides of anodal lid are provided with first connecting piece, the middle part of first connecting piece is provided with a first mounting hole, battery base's both sides be equipped with first connecting piece mutually support's first mounting groove, be provided with a first joint piece in the first mounting groove, first connecting piece peg graft in first mounting groove, a joint piece joint in first mounting hole.

Optionally, the rear side of negative pole lid is provided with the second connection piece, the middle part of second connection piece is provided with a second mounting hole, the rear side of battery base be equipped with the second mounting groove of first connection piece mutually supporting, be provided with a second joint piece in the second mounting groove, the second connection piece peg graft in the second mounting groove, second joint piece joint in the second mounting hole.

Optionally, the inner wall upper end of battery base is provided with arc baffle, button cell joint in between the arc baffle with the positive pole lid.

The button battery and the button battery seat provided by the embodiment of the utility model have one or more of the following technical schemes:

according to the utility model, the first gasket is arranged on the positive electrode shell and is abutted against one surface of the battery cell, the second gasket is arranged on the negative electrode shell and is abutted against the other surface of the battery cell, so that the phenomenon that the shell is broken due to uneven internal pressure distribution caused by overlarge edge pressure in the button battery can be effectively improved, the internal capacity of the button battery is improved, the quality of the button battery is enhanced, and the button battery has extremely high practicability.

Drawings

Fig. 1 is an exploded view of a button cell according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a button cell according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a button battery holder according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a battery base according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of an anode cover according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a negative electrode cap according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

1. a positive electrode case; 11. A boss; 2. A negative electrode case;

22. the second annular limiting groove; 3. sealing the connection member; 4. A first gasket;

5. a second gasket; 6. A battery base; 61. A first mounting groove;

62. a first clamping block; 63. A second mounting groove; 64. a second clamping block;

65. an arc baffle; 7. A positive electrode cover; 71. A first elastic sheet;

72. a first connecting piece; 73. A first mounting hole; 8. a negative electrode cover;

81. a second spring plate; 82. A second connecting piece; 83. and a second mounting hole.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, as shown in fig. 1 and 2, a button cell is provided, which includes a positive electrode case 1, a negative electrode case 2, a battery cell (not shown), a sealing connection 3, a first gasket 4, and a second gasket 5. The sealing connecting piece 3 is connected with the inner wall of the anode shell 1, and the sealing connecting piece 3 is also connected with the outer ring of the cathode shell 2; the positive electrode shell 1 and the negative electrode shell 2 are semi-closed structures with one opening, the positive electrode shell 1 and the negative electrode shell 2 are connected with each other through the sealing connecting piece 3 to form a cavity, the battery cell is accommodated in the cavity, the first gasket 4 is arranged between the battery cell and the positive electrode shell 1, and the second gasket 5 is arranged between the battery cell and the negative electrode shell 2.

According to the utility model, the first gasket 4 is arranged on the positive electrode shell 1, one surface of the first gasket 4 is abutted against one surface of the battery cell, the second gasket 5 is arranged on the negative electrode shell 2, and the second gasket 5 is abutted against the other surface of the battery cell, so that the phenomenon that the shell is broken due to uneven internal pressure distribution caused by overlarge edge pressure in the button battery can be effectively improved, lithium is prevented from being precipitated from the shell, the internal capacity of the button battery is improved, the capacity of the button battery is enhanced, and the button battery has extremely high practicability.

Specifically, in another embodiment of the present utility model, as shown in fig. 2 and fig. 2, the cathode casing 1 is provided in the form of a boss 11, and the end surface of the boss 11 is provided with a chamfer. Further, the first gasket 4 is arranged in an arc shape. By arranging the whole shell as the boss 11, when the battery is expanded at high temperature, the boss 11 can be used as an expansion space in the button battery, and the shell cannot be broken even if the whole shell is expanded in all directions.

Specifically, in another embodiment of the present utility model, as shown in fig. 1 and 2, a first annular limiting groove (not shown) is formed in the inner wall of the positive electrode casing 1, a second annular limiting groove 22 is formed in the outer wall of the negative electrode casing 2, and both inner and outer sides of the sealing connection member 3 are fixed to the second annular limiting groove 22 and the first annular limiting groove. Specifically, in this embodiment, the sealing connection member 3 is glued to the first annular limiting groove and the second annular limiting groove 22 respectively, so that the sealing connectivity between the positive electrode casing 1 and the negative electrode casing 2 can be enhanced, the internal battery cell is not in contact with the external environment, and the service life of the button cell is prolonged.

In particular, in another embodiment of the utility model, the sealing connection 3 is a non-conductive material.

Specifically, in another embodiment of the present utility model, as shown in fig. 1 and 2, the thickness interval of the first gasket 4 and the second gasket 5 is 0.02-0.1mm. Specifically, any thickness value within the interval may be taken in the present embodiment. It should be understood that the first gasket 4 and the second gasket 5 are intended to adjust the internal pressure of the button cell so that the internal pressure is uniformly distributed, and thus the materials and structures of the first gasket 4 and the second gasket 5 are not limited. In this embodiment, the first gasket 4 and the second gasket 5 are made of stainless steel.

The utility model also provides a button battery holder, as shown in fig. 1-6, which is applied to the button battery, and comprises a battery holder 6, a positive electrode cover 7 and a negative electrode cover 8, wherein the battery holder 6 is used for mounting the button battery, the positive electrode cover 7 is clamped on the top side of the battery holder 6, a first elastic sheet 71 is arranged in the middle of the positive electrode cover 7, and the first elastic sheet 71 is obliquely arranged downwards; the negative electrode cover 8 is clamped on the top side of the battery base 6, a second elastic piece 81 is arranged in the middle of the negative electrode cover 8, the second elastic piece 81 is arranged in an upward inclined mode, and the upper side and the lower side of the button battery are respectively abutted to the first elastic piece 71 and the second elastic piece 81. When the button cell is placed on the button cell seat, the first elastic piece 71 is conducted with the positive electrode of the button cell, and the second elastic piece 81 is conducted with the negative electrode of the button cell.

Specifically, in another embodiment of the present utility model, as shown in fig. 3 to 6, first connection pieces 72 are disposed on two sides of the positive electrode cover 7, a first mounting hole 73 is disposed in the middle of the first connection pieces 72, first mounting grooves 61 that are matched with the first connection pieces 72 are disposed on two sides of the battery base 6, a first clamping block 62 is disposed in the first mounting grooves 61, the first connection pieces 72 are inserted into the first mounting grooves 61, and the first clamping blocks 62 are clamped into the first mounting holes 73. In the present embodiment, the number of the first connecting pieces 72 is two, which are respectively disposed on two sides of the positive electrode cover 7, and the number of the first mounting grooves 61 is correspondingly two, which are respectively disposed on two sides of the battery base 6, so that the first connecting pieces 72 can be inserted into the first mounting grooves 61, and the first mounting holes 73 can be clamped to the first clamping blocks 62, thereby enabling the positive electrode cover 7 to be stably mounted on the upper portion of the battery base 6.

Further, the rear side of the negative electrode cover 8 is provided with a second connecting piece 82, the middle part of the second connecting piece 82 is provided with a second mounting hole 83, the rear side of the battery base 6 is provided with a second mounting groove 63 matched with the first connecting piece 72, a second clamping block 64 is arranged in the second mounting groove 63, the second connecting piece 82 is inserted into the second mounting groove 63, and the second clamping block 64 is clamped into the second mounting hole 83, so that the negative electrode cover 8 can be stably mounted on the lower part of the battery base 6.

Specifically, in another embodiment of the present utility model, as shown in fig. 1 to 6, an arc-shaped baffle plate 65 is disposed at the upper end of the inner wall of the battery base 6, and the button battery is clamped between the arc-shaped baffle plate 65 and the positive electrode cover 7. Through set up the arc-shaped baffle 65 in the upper end of battery base 6, make button cell can peg graft spacing being fixed in battery base 6, and because button cell's anodal casing 1 sets up boss 11, and negative pole casing 2 does not bulge and set up, when button cell positive negative pole dress was reversed, arc-shaped baffle 65 can prevent that the negative pole from contacting first shell fragment 71, even button cell load is reversed also can not switch on, can prevent the battery short circuit phenomenon that leads to the fact because of button cell is reversed, effectually protected button cell.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The button battery is characterized by comprising an anode shell, a cathode shell, an electric core, a sealing connecting piece, a first gasket and a second gasket, wherein the sealing connecting piece is connected with the inner wall of the anode shell, and the sealing connecting piece is also connected with the outer ring of the cathode shell; the battery cell comprises a battery cell, a first gasket, a second gasket, a positive electrode shell, a negative electrode shell and a sealing connecting piece, wherein the positive electrode shell and the negative electrode shell are connected with each other through the sealing connecting piece to form a cavity, the battery cell is accommodated in the cavity, the first gasket is arranged between the battery cell and the positive electrode shell, and the second gasket is arranged between the battery cell and the negative electrode shell.

2. The button cell as defined in claim 1, wherein the positive electrode case is provided in a boss shape, and an end surface of the boss is provided with a chamfer.

3. The button cell defined in claim 2, wherein the first gasket is disposed in an arc shape.

4. The button cell of claim 1, wherein a first annular limiting groove is formed in the inner wall of the positive electrode shell, a second annular limiting groove is formed in the outer wall of the negative electrode shell, and the inner side and the outer side of the sealing connecting piece are fixed to the second annular limiting groove and the first annular limiting groove.

5. The button cell defined in any one of claims 1-4, wherein the sealing connection is a non-conductive material.

6. The button cell defined in any one of claims 1-4, wherein the first gasket and the second gasket have a thickness ranging from 0.02 mm to 0.1mm.

7. A button battery holder applied to the button battery of any one of claims 1 to 6, comprising a battery base, a positive electrode cover and a negative electrode cover, wherein the battery base is used for installing the button battery, the positive electrode cover is clamped on the top side of the battery base, a first elastic sheet is arranged in the middle of the positive electrode cover, and the first elastic sheet is arranged in a downward inclined manner; the negative electrode cover is clamped on the top side of the battery base, a second elastic sheet is arranged in the middle of the negative electrode cover and is arranged in an upward inclined mode, and the upper side and the lower side of the button battery are respectively abutted to the first elastic sheet and the second elastic sheet.

8. The button cell base of claim 7, wherein first connecting pieces are arranged on two sides of the positive electrode cover, a first mounting hole is formed in the middle of each first connecting piece, first mounting grooves matched with the first connecting pieces are formed on two sides of the cell base, a first clamping block is arranged in each first mounting groove, the first connecting pieces are inserted into the first mounting grooves, and the first clamping blocks are clamped into the first mounting holes.

9. The button cell holder of claim 8, wherein a second connecting piece is disposed on the rear side of the negative electrode cover, a second mounting hole is disposed in the middle of the second connecting piece, a second mounting groove matched with the first connecting piece is disposed on the rear side of the cell holder, a second clamping block is disposed in the second mounting groove, the second connecting piece is inserted into the second mounting groove, and the second clamping block is clamped into the second mounting hole.

10. The button cell holder of claim 7, wherein an arc-shaped baffle is disposed at an upper end of an inner wall of the cell holder, and the button cell is clamped between the arc-shaped baffle and the positive electrode cover.