CN214672796U

CN214672796U - Series button cell

Info

Publication number: CN214672796U
Application number: CN202021313763.9U
Authority: CN
Inventors: 王建; 夏青; 阮保红; 许杰康; 官守敏
Original assignee: Yichang Lijia Technology Co ltd
Current assignee: Yichang Lijia Technology Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-11-09
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a serial-type button cell, include: the battery pack comprises a shell, a first battery, a second battery, a first assembly, a second assembly, a metal connecting sheet and a shell cover; the metal connecting sheet, the first assembly, the first battery and the second battery are sequentially arranged in the shell, and the metal connecting sheet is connected with the side faces of the first battery and the second battery; the first battery and the second battery are connected in series; the second component is welded with the other pole of the second battery; the shell cover is connected with the shell in a sealing mode; therefore, on one hand, the total capacity is improved by connecting the batteries in series, the volume of the batteries or the battery pack is effectively reduced, and the battery pack has very strong practicability and strong reliability; on the other hand, the dustproof, shockproof and waterproof performance of the battery is improved by the sealing connection of the shell cover and the shell body.

Description

Series button cell

Technical Field

The utility model relates to a button cell field especially relates to a serial-type button cell.

Background

At present, the button cell has an increasingly wide application range, and also relates to many fields, such as: electronic products, military products, medical instruments, and the like. In recent years, electronic products have been developed rapidly, products thereof have diversified and application fields thereof are increasingly wider, many electronic products are convenient for customers to use, high requirements are provided for capacity, volume and output power of used batteries, the development is towards the trend of portability, and the development of new high-power batteries is imperative for meeting market demands.

Button cells in the current market have small continuous discharge current and low output power; the soft package battery can not meet the market demand due to the factors of overlarge volume, poor mechanical strength, low safety and the like.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a serial button cell with improved output power.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the embodiment of the utility model provides a serial-type button cell, include: the battery pack comprises a shell, a first battery, a second battery, a first assembly, a second assembly, a metal connecting sheet and a shell cover; wherein,

the metal connecting sheet, the first assembly, the first battery and the second battery are sequentially arranged in the shell, and the metal connecting sheet is connected with the side faces of the first battery and the second battery;

the first battery and the second battery are connected in series;

the second component is welded with the other pole of the second battery;

the housing cover is connected with the housing shell in a sealing mode.

And the first battery and the second battery are respectively welded with the metal connecting sheet through side edges.

Wherein, the shell body is connected and bonded with the shell cover in a buckling way.

The shell body and the shell cover are made of plastics.

Wherein, the metal connecting sheet is embedded and installed on the inner side of the shell body.

The first assembly comprises a base soldering lug, a connecting piece and an extension soldering lug, wherein the base soldering lug is horizontally parallel to the extension soldering lug, and the heights of the horizontal positions are inconsistent.

Wherein, the shell casing includes first breach, the base soldering lug passes through first breach extends to outside the shell casing.

Wherein, the first notch is a U-shaped notch or a V-shaped notch.

The second assembly is welded on the second battery, extends outwards to the outside of the shell, and the outward extending direction of the second assembly is different from the extending direction of the extending soldering lug.

The embodiment of the utility model provides a pair of button cell connects in parallel, include: the battery pack comprises a shell, a first battery, a second battery, a first assembly, a second assembly, a metal connecting sheet and a shell cover; the metal connecting sheet, the first assembly, the first battery and the second battery are sequentially arranged in the shell, and the metal connecting sheet is connected with the side faces of the first battery and the second battery; the first battery and the second battery are connected in series; the second component is welded with the other pole of the second battery; the shell cover is connected with the shell in a sealing mode; therefore, on one hand, the total capacity is improved by connecting the batteries in series, the volume of the batteries or the battery pack is effectively reduced, and the battery pack has very strong practicability and strong reliability; on the other hand, the dustproof, shockproof and waterproof performance of the battery is improved by the sealing connection of the shell cover and the shell body.

Drawings

Fig. 1 is a schematic structural view of a serial button cell provided in an embodiment of the present invention;

fig. 2 is an exploded view of a serial button cell provided in an embodiment of the present invention;

fig. 3 is a connection diagram of a metal connecting member and a housing case provided in an embodiment of the present invention;

fig. 4 is a schematic view of a partial structure of a serial button cell provided in an embodiment of the present invention.

In the figure, a shell case 1, a first battery 2, a first component 3, a second battery 4, a second component 5, a base soldering lug 6, a connecting piece 7, an extension soldering lug 8, an elastic sheet 9, a metal connecting piece 10 and a shell cover 11.

Detailed Description

For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

Referring to fig. 1 to 4, a serial button cell provided in an embodiment of the present invention includes: a housing case 1, a first battery 2, a second battery 4, a first assembly 3 and a second assembly 5, a metal connecting sheet 10, and a housing cover 11; the metal connecting sheet 10, the first component 3, the first battery 2 and the second battery 4 are sequentially arranged in the shell body 1, and the metal connecting sheet 10 is connected with the side faces of the first battery 2 and the second battery 4; the first battery 2 and the second battery 4 are connected in series; the second component 5 is welded with the other pole of the second battery 4; the housing cover 11 is connected to the housing body 1 in a sealing manner.

Here, the first battery 2 and the second battery 4 are placed in the case housing 1, and the first battery 2 and the second battery 4 are fixedly connected by connecting the metal connecting sheet 10 to the side surfaces of the first battery 2 and the second battery 4, and the number of cells of the series battery pack is not limited herein.

Further, by connecting the first battery 2 and the second battery 4 in series with the battery pack, here, the housing case 1 and the housing cover 11 can be plastic cases, so that on one hand, by connecting the batteries in series, the total capacity is increased, the size of the battery or the battery pack is effectively reduced, and the battery or the battery pack has very strong practicability and strong reliability; on the other hand, the dustproof, shockproof and waterproof performance of the battery is improved by the sealing connection of the shell cover and the shell body.

In one embodiment, the first cell 2 and the second cell 4 are each welded to the metal tab 10 by a side edge.

Here, the inner diameter of the housing case 1 is adapted to the outer diameters of the first battery 2 and the second battery 4, and the negative electrode of the first battery 2 is put in place in the same direction as the opening of the housing case 1, or is welded to the side of the metal connecting piece 10 to achieve good connection.

In one embodiment, the housing shell 1 is snap-fit connected to the housing cover 11, and glued thereto.

Here, the housing cover 11 and the housing case 1 are snap-fitted or the housing cover 11 and the housing case 1 are fixedly connected with high strength by using techniques such as adhesion, thereby improving the dustproof, shockproof and waterproof performance of the battery.

In one embodiment, the housing shell and the housing cover are made of plastic.

Here, the shell casing with the shell lid material is plastics, has avoided the mistake of first subassembly 3 and second subassembly 5 and shell casing to touch or the short circuit, has also avoided the battery to be in the problem of the easy short circuit of inside.

In one embodiment, the metal connecting plate 10 is inserted into the housing shell 1. The connection effect of the combination of a plurality of batteries provided by the battery pack is ensured.

In an alternative embodiment, the first battery 2 and the second battery 4 are each welded to the housing shell 1 by a side edge.

Here, the inside diameter of the housing case 1 is adapted to the outside diameters of the first battery 2 and the second battery 4, and the negative electrode of the first battery 2 is fitted in place in the same direction as the opening of the housing case 1, or good connection is achieved by side welding.

In an alternative embodiment, the first assembly 3 includes a base soldering lug 6, a connecting piece 7 and an extending soldering lug 8, and the base soldering lug 6 is horizontally parallel to the extending soldering lug 8, and the heights of the horizontal positions are not consistent.

Here, the connecting member 7 is perpendicular to the base tab 6 and the extension tab 8, respectively, the base tab 6 is connected to one pole of the first battery 1 to extend outward, and then the direction is changed by the connecting member 7, so that the base tab 6 and the extension tab 8 are at different heights.

In an alternative embodiment, the housing shell 1 comprises a first recess, through which the extended tab extends outside the housing shell 1.

Here, the first notch is a U-shaped notch or a V-shaped notch; the extending welding sheet is uniformly symmetrical with the gap of the welding steel belt at the first gap, and is filled with insulating glue (for example: 703/704 silicon rubber), and the extending welding sheet is solidified and positioned to avoid contact short circuit.

In an alternative embodiment, the second component 5 is welded to the second battery 4, the second component 5 extends outward outside the casing shell 1, and the outward extending direction of the second component 5 is different from the extending direction of the extending soldering lug.

Here, the outward extending directions of the first member 3 and the second member 5 are different, ensuring convenience in connection of the positive electrode and the negative electrode.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and scope of the present invention are all included within the protection scope of the present invention.

Claims

1. A serial button cell, comprising: the battery pack comprises a shell, a first battery, a second battery, a first assembly, a second assembly, a metal connecting sheet and a shell cover; wherein,

the first battery and the second battery are connected in series;

the second component is welded with the other pole of the second battery;

the housing cover is connected with the housing shell in a sealing mode.

2. The series button cell according to claim 1, wherein the first cell and the second cell are each welded to the metal tab by a side edge.

3. The series button cell according to claim 1, wherein the housing case is snap-fit, glued to the housing cover.

4. The serial button cell as claimed in claim 1, wherein the housing case and the housing cover are made of plastic.

5. The series button cell according to claim 1, wherein the metal tab is insert-mounted inside the housing case.

6. The series button cell as defined in claim 1, wherein the first assembly comprises a base tab, a connecting member, and an extension tab, the base tab being horizontally parallel to the extension tab and the height of the horizontal position being non-uniform.

7. The serial button cell according to claim 6, wherein the housing case comprises a first notch, and the base tab extends out of the housing case through the first notch.

8. The series button cell according to claim 7, wherein the first notch is a U-shaped notch or a V-shaped notch.

9. The series button cell according to claim 6, wherein the second assembly is welded to the second cell, the second assembly extends outwardly beyond the housing case, and the direction of the second assembly extending outwardly is different from the direction of the extension tab.