CN212485502U

CN212485502U - Pin soldering lug assembly and button type battery pack

Info

Publication number: CN212485502U
Application number: CN202020948572.3U
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: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-05
Anticipated expiration: 2030-05-29

Abstract

The embodiment of the utility model provides a pair of participate in soldering lug subassembly and knot formula group battery, include: the welding device comprises a base welding sheet, a connecting piece, an extension welding sheet and an insulating piece coated on the connecting piece; the base soldering lug is welded with one electrode of the battery, the insulating piece is attached to the side face of the battery, one side of the extension soldering lug is connected with the insulating piece, the other side of the extension soldering lug is perpendicular to the connecting piece and extends outwards, so that the risk of short circuit of the pin soldering lug assembly in the connecting process is avoided, and meanwhile, the insulating piece is coated on the connecting piece, so that the mechanical strength of the pin buccal tablet assembly is enhanced.

Description

Pin soldering lug assembly and button type battery pack

Technical Field

The utility model relates to a button cell field especially relates to a participate in soldering lug subassembly and button cell group.

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 pin soldering lug assembly and a button battery pack capable of avoiding short circuit and improving mechanical strength.

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 participate in soldering lug subassembly, include: the welding device comprises a base welding sheet, a connecting piece, an extension welding sheet and an insulating piece coated on the connecting piece; the base soldering lug is welded with one pole of the battery, the insulating part is attached to the side face of the battery, one side of the extension soldering lug is connected with the insulating part, and the other side of the extension soldering lug is perpendicular to the connecting part and extends outwards.

The base soldering lug is horizontally parallel to the extension soldering lug, and the heights of the horizontal positions are inconsistent.

Wherein the insulating member is one of: injection molding, insulating colloid, high-temperature winding glue.

The embodiment of the utility model provides a button cell group is still provided, a serial communication port, include: the connecting shell, the first battery, the second battery, the pin soldering lug assembly and the second assembly are connected; the pin soldering lug assembly comprises a base soldering lug, a connecting piece, an extension soldering lug and an insulating piece coated on the connecting piece;

the first battery, the pin soldering lug assembly and the second battery are sequentially arranged in the connecting shell, and the first battery is welded with the connecting shell;

the first battery and the second battery are connected in the same pole through the pin lug assembly;

the second component is welded to the other pole of the second battery.

Wherein the first battery and the second battery are respectively welded to the connection case through side edges.

The pin soldering lug assembly further comprises an elastic sheet, the elastic sheet is arranged between the first battery and the second battery, one side of the elastic sheet is connected with the base soldering lug or one pole of the first battery, and the other side of the elastic sheet is connected with one pole of the second battery.

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

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

Drawings

Fig. 1 is a schematic structural view of a pin pad assembly according to an embodiment of the present invention;

fig. 2 is a schematic main view of a pin pad assembly according to an embodiment of the present invention;

fig. 3 is a front view of a pin pad assembly provided in an embodiment of the present invention;

fig. 4 is a side view of a pin pad assembly provided in an embodiment of the present invention;

fig. 5 is a schematic structural view of a button battery pack provided in an embodiment of the present invention;

fig. 6 is an exploded view of a button battery pack according to an embodiment of the present invention;

fig. 7 is a schematic cross-sectional view of a button battery pack provided in an embodiment of the present invention.

In the figure, a connecting shell 1, a first battery 2, a pin soldering lug 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 and an insulating piece 10 are shown.

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 pin pad assembly 3 is provided for an embodiment of the present invention, including: the welding device comprises a base welding sheet 6, a connecting piece 7, an extension welding sheet 8 and an insulating piece 10 coated on the connecting piece; the base soldering lug 6 is welded with one pole of the battery, the insulating part 10 is attached to the side face of the battery, one side of the extension soldering lug 8 is connected with the insulating part 10, the other side of the extension soldering lug is perpendicular to the connecting part 7 and extends outwards, therefore, the risk of short circuit of the pin soldering lug component 3 in the connection process is avoided, and meanwhile, the insulating part 10 is coated on the connecting part 7, so that the mechanical strength of the pin soldering lug component 3 is enhanced.

The base soldering lug 6 and the extension soldering lug 8 are horizontally parallel, and the heights of the horizontal positions are inconsistent.

Here, the insulating member 10 is one of: injection molding, insulating colloid, high-temperature winding glue.

Referring to fig. 5 to 7, for the embodiment of the present invention provides a button battery, which is characterized in that it includes: a connection case 1, a first battery 2, a second battery 4, a pin lug assembly 3, and a second assembly 5; the pin soldering lug assembly 3 comprises a base soldering lug 6, a connecting piece 7, an extension soldering lug 8 and an insulating piece 10 coated on the connecting piece 7;

the first battery 2, the pin soldering lug assembly 3 and the second battery 4 are sequentially arranged in the connecting shell 1, and the first battery 2 is welded with the connecting shell 1;

the first battery 2 and the second battery 4 are connected in the same polarity through the pin lug assembly 3;

the second member 5 is welded to the other pole of the second battery 4.

Here, the first battery 2 and the second battery 4 are placed in the connecting shell 1, and simultaneously the first battery 2 and the second battery 4 are respectively connected through the pin soldering lug assembly 3, and the two battery shells are connected in the same pole to form a parallel connection battery pack of the two batteries, wherein the connecting shell 1 can be an external metal shell, so that the current output load capacity of the battery pack is increased, the overall stability, the storage property, the consistency and the liquid leakage prevention performance of the batteries are improved, and the service life of the batteries is prolonged.

Here, the pin soldering lug component 3 is welded with the negative electrode surface of the first battery 2 arranged in the connecting shell 1 and is not contacted with the connecting shell 1, the second battery 4 is arranged in place, the negative electrode surface of the second battery 4 is tightly contacted with the pin soldering lug component 3 and achieves good connection and fixation effects through side edge welding, and the second component 5 can be welded and fixed with the positive electrode of the battery pack according to requirements.

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

Here, the inner diameter of the connection housing 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 fitted in place in the same direction as the opening of the connection housing 1, or a good connection is achieved by side welding.

In an alternative embodiment, the pin pad assembly 3 includes a base pad 6, a connecting member 7 and an extending pad 8, wherein the base pad 6 is horizontally parallel to the extending pad 8, and the heights of the horizontal positions are not uniform.

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, referring to fig. 2 and 3, the pin pad assembly 3 further includes a spring plate 9, the spring plate 9 is disposed between the first battery 2 and the second battery 4, one side of the spring plate 9 is connected to the base pad 6 or one pole of the first battery 2, and the other side of the spring plate 9 is connected to one pole of the second battery 4.

Here, the elastic sheet 9 may be made of fe-cr-al alloy, and may be welded on the base tab or welded on one side of the base tab for the parallel contact of the negative electrode surfaces of two button cells, one end of the elastic sheet is welded with the negative electrode surface of the cell, and the other end can be freely extended when pressed, and the welding position of the elastic sheet is proper, and generally located at the center of the circle of the button cell to avoid the possibility of contact with the positive electrode surface.

In an alternative embodiment, the connection housing 1 comprises a first recess, through which the extended tab extends outside the connection housing 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 to the outside of the connecting 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 pin pad assembly 3 and the second assembly 5 are different in outward extending direction, ensuring convenience in connection of the positive and negative electrodes.

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 pin pad assembly, comprising: the welding device comprises a base welding sheet, a connecting piece, an extension welding sheet and an insulating piece coated on the connecting piece; the base soldering lug is welded with one pole of the battery, the insulating part is attached to the side face of the battery, one side of the extension soldering lug is connected with the insulating part, and the other side of the extension soldering lug is perpendicular to the connecting part and extends outwards.

2. The pin lug assembly of claim 1, wherein the base lug is horizontally parallel to the extension lug and does not have a uniform height from the horizontal.

3. The pin lug assembly of claim 1, wherein the insulating member is one of: injection molding, insulating colloid, high-temperature winding glue.

4. A button cell battery, comprising: the connecting shell, the first battery, the second battery, the pin soldering lug assembly and the second assembly are connected; the pin soldering lug assembly comprises a base soldering lug, a connecting piece, an extension soldering lug and an insulating piece coated on the connecting piece;

the second component is welded to the other pole of the second battery.

5. A button cell battery according to claim 4, characterized in that the first and second batteries are welded to the connecting case by side edges, respectively.

6. The button cell battery according to claim 4, wherein the pin tab assembly further comprises a spring plate, the spring plate is disposed between the first battery and the second battery, one side of the spring plate is connected to the base tab or one pole of the first battery, and the other side of the spring plate is connected to one pole of the second battery.

7. The button cell battery according to claim 4, wherein the connection case includes a first notch through which the base tab extends to the outside of the connection case.

8. The button cell battery according to claim 4, wherein the second member is welded to the second cell, the second member extends outwardly beyond the connection case, and the second member extends outwardly in a direction different from the extension tab.

9. A button cell battery according to claim 4, characterized in that said insulating member is one of the following: injection molding, insulating colloid, high-temperature winding glue.