CN212991249U

CN212991249U - Battery tab with short-circuit protection structure

Info

Publication number: CN212991249U
Application number: CN202022355458.2U
Authority: CN
Inventors: 曾建军
Original assignee: Dongguan Kaixiang Electronic Material Co ltd
Current assignee: Dongguan Kaixiang Electronic Material Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-04-16
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a battery tab with short-circuit protection structure, including the sealed shell, four sides of the sealed shell inner wall are all fixedly provided with the shock attenuation board, the bottom of the sealed shell inner wall is fixedly connected with battery tab main part, both ends at the top of the battery tab main part are respectively fixedly connected with tab anode and tab cathode, the top block of the sealed shell is connected with the sealed cover, the junction of the sealed shell and the sealed cover is fixedly provided with a first sealing ring, both ends at the top of the sealed cover are all provided with connecting holes, the utility model relates to a battery tab with short-circuit protection structure, spliced pole, elastic ball and shock attenuation board can weaken the impact of the battery tab and the electrolyte of plastic-aluminum film package, prevent the electrolyte from leaking and causing short circuit; the sealing shell, the sealing cover, the first sealing ring and the second sealing ring can guarantee the sealing performance of the battery tab main body, further prevent the permeation of electrolyte when the electrolyte is broken, and protect the internal circuit to prevent short circuit safely.

Description

Battery tab with short-circuit protection structure

Technical Field

The utility model relates to a battery field specifically is a battery tab with short-circuit protection structure.

Background

The battery is a part of space of a cup, a groove or other container or a composite container which is filled with electrolyte solution and metal electrodes to generate current, and a device which can convert chemical energy into electric energy. This contact point is not the copper sheet that we see on the outside of the cell, but rather a connection inside the cell. The tab is divided into three materials, the positive pole of the battery uses aluminum material, the negative pole uses nickel material, the negative pole also has copper nickel plating material, they are all compounded by film and strap two parts, the battery tab is easy to cause the short circuit because of wearing out in the course of operation, cause the electrical safety accident.

The insulating layer formed between the conventional battery tab and the aluminum-plastic film is uneven, the sealing effect of the joint is poor, short circuit is easy to cause, and a short circuit protection structure is lacked.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery utmost point ear with short-circuit protection structure to the insulating layer that forms between battery utmost point ear and the plastic-aluminum membrane that proposes in solving above-mentioned background art is inhomogeneous, and the sealed effect of junction causes the short circuit easily, lacks the problem of short-circuit protection structure.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a battery tab with short-circuit protection structure, includes sealed shell, four sides of sealed shell inner wall are all fixed and are provided with the shock attenuation board, the bottom fixedly connected with battery tab main part of sealed shell inner wall, the both ends difference fixedly connected with utmost point ear positive pole and utmost point ear negative pole at battery tab main part top, utmost point ear positive pole's surface cover is equipped with first oxidation film, utmost point ear negative pole's surface cover is equipped with the second oxidation film, the surface of first oxidation film and the surface of second oxidation film all overlap and are equipped with the colloid, the top block of sealed shell is connected with sealed lid, sealed shell is provided with first sealing washer with the junction of sealed lid is fixed.

As a preferred technical scheme of the utility model, utmost point ear positive pole is made by metallic aluminum material, utmost point ear negative pole is made by metallic nickel material.

As an optimized technical scheme of the utility model, the colloid all fixedly is provided with the second sealing washer with the junction of two connecting holes.

As a preferred technical scheme of the utility model, the equal fixedly connected with joint post of four corners of seal shell bottom, four the center of block toe portion is the fixed elastic ball that is provided with all, four the outer lane of block toe portion is connected with the spread groove block that four corners were seted up at the bottom plate top respectively, the bottom fixed mounting of bottom plate has the protection shield.

As an optimized technical scheme of the utility model, the connecting hole has all been seted up at the both ends at sealing cap top, two connecting holes are passed respectively to utmost point ear positive pole's top and utmost point ear negative pole's top and are extended to the external world.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the connecting column, the elastic ball and the damping plate are arranged, so that the impact of the battery tab and the electrolyte packaged by the aluminum-plastic film can be weakened, the short circuit caused by the leakage of the electrolyte can be prevented, the colloid, the first oxide film and the second oxide film can enable the side surfaces of the tab anode and the tab cathode to be insulated and prevent the short circuit, and the end points are connected in a point manner;

2. the sealing shell, the sealing cover, the first sealing ring and the second sealing ring are arranged to ensure the sealing performance of the battery tab main body, so that the electrolyte is further prevented from permeating when being broken, the safety of an internal circuit is protected, and short circuit is prevented.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a front sectional view of the present invention;

fig. 3 is a schematic diagram of the local enlarged structure of the present invention.

In the figure: 1. sealing the shell; 2. a damper plate; 3. a sealing cover; 4. a first seal ring; 5. a battery tab body; 6. a tab anode; 7. a tab cathode; 8. a first oxide film; 9. a second oxide film; 10. a second seal ring; 11. a colloid; 12. a snap post; 13. an elastic ball; 14. a base plate; 15. and (5) protecting the board.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, the utility model provides a battery tab with short-circuit protection structure, including sealed shell 1, four sides of sealed shell 1 inner wall are all fixed and are provided with shock attenuation board 2, the bottom fixedly connected with battery tab main part 5 of sealed shell 1 inner wall, the both ends difference fixedly connected with utmost point ear positive pole 6 and utmost point ear negative pole 7 at battery tab main part 5 top, the surface cover of utmost point ear positive pole 6 is equipped with first oxidation film 8, the surface cover of utmost point ear negative pole 7 is equipped with second oxidation film 9, the surface of first oxidation film 8 and the surface of second oxidation film 9 are all overlapped and are equipped with colloid 11, the top block of sealed shell 1 is connected with sealed lid 3, sealed shell 1 is provided with first sealing washer 4 with the junction of sealed lid 3 fixedly.

Preferably, the tab anode 6 is made of a metallic aluminum material, and the tab cathode 7 is made of a metallic nickel material, and the connection of the internal circuit of the battery is completed through the metallic aluminum and the metallic nickel for conducting electricity.

Preferably, the connection part of the colloid 11 and the two connection holes is fixedly provided with a second sealing ring 10, and the second sealing ring 10 seals the gap of the connection holes, so that the electrolyte is prevented from being broken to damage the battery tab main body 5 to cause a short circuit to cause a safety accident.

Preferably, the equal fixedly connected with block post 12 in four corners of sealed shell 1 bottom, the center of four block post 12 bottoms all fixes and is provided with elastic ball 13, the outer lane of four block post 12 bottoms is connected with the spread groove block that four corners were seted up at bottom plate 14 top respectively, the bottom fixed mounting of bottom plate 14 has protection shield 15, the impulsive force of striking is reduced through the block of elastic ball 13 with the spread groove, protection battery utmost point ear main part 5 reduces the friction with the plastic-aluminum membrane and prevents the short circuit, protection shield 15 can form the protection mechanism after the short circuit, furthest's reduction damage that the short circuit caused.

Preferably, the connecting holes are formed in the two ends of the top of the sealing cover 3, the top end of the tab anode 6 and the top end of the tab cathode 7 penetrate through the two connecting holes respectively and extend to the outside, and the chemical energy and the electric energy are converted to supply power through the end points of the tab anode 6 and the tab cathode 7.

When the battery tab with the short-circuit protection structure is used, the clamping column 12 and the damping plate 2 act together through the elastic ball 13, so that the main body 5 of the battery tab can be protected, the impact of the battery tab and electrolyte packaged by an aluminum-plastic film can be weakened, and the short circuit caused by the leakage of the electrolyte is prevented; the colloid 11, the first oxide film 8 and the second oxide film 9 on the surfaces of the tab anode 6 and the tab cathode 7 can ensure that the side surfaces of the tab anode 6 and the tab cathode 7 are insulated to prevent short circuit, and the end points are in point connection; the second sealing ring 10 seals the gap of the connecting hole, so that the electrolyte is prevented from breaking and damaging the battery tab main body 5 to cause a safety accident due to short circuit; the protection plate 15 can form a protection mechanism after short circuit, and damage caused by short circuit is reduced to the maximum extent.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a battery tab with short-circuit protection structure, includes sealed shell (1), its characterized in that: four sides of sealed shell (1) inner wall are all fixed and are provided with shock attenuation board (2), the bottom fixedly connected with battery utmost point ear main part (5) of sealed shell (1) inner wall, the both ends difference fixedly connected with utmost point ear positive pole (6) and utmost point ear negative pole (7) at battery utmost point ear main part (5) top, the surface cover of utmost point ear positive pole (6) is equipped with first oxide film (8), the surface cover of utmost point ear negative pole (7) is equipped with second oxide film (9), the surface of first oxide film (8) and the surface of second oxide film (9) all overlap and are equipped with colloid (11), the top block of sealed shell (1) is connected with sealed lid (3), sealed shell (1) is fixed with first sealing washer (4) with the junction of sealed lid (3).

2. The battery tab with the short-circuit protection structure as set forth in claim 1, wherein: the tab anode (6) is made of a metallic aluminum material, and the tab cathode (7) is made of a metallic nickel material.

3. The battery tab with the short-circuit protection structure as set forth in claim 1, wherein: and the joints of the colloid (11) and the two connecting holes are fixedly provided with second sealing rings (10).

4. The battery tab with the short-circuit protection structure as set forth in claim 1, wherein: the sealing shell is characterized in that four corners of the bottom of the sealing shell (1) are fixedly connected with clamping columns (12), four elastic balls (13) are fixedly arranged at the centers of the bottoms of the clamping columns (12), four outer rings of the bottoms of the clamping columns (12) are connected with connecting grooves formed in the four corners of the top of the bottom plate (14) in a clamping mode, and a protection plate (15) is fixedly installed at the bottom of the bottom plate (14).

5. The battery tab with the short-circuit protection structure as set forth in claim 1, wherein: connecting holes are formed in the two ends of the top of the sealing cover (3), and the top end of the tab anode (6) and the top end of the tab cathode (7) penetrate through the two connecting holes respectively and extend to the outside.