CN216354474U

CN216354474U - Square steel shell for sealed special-shaped battery

Info

Publication number: CN216354474U
Application number: CN202122584407.1U
Authority: CN
Inventors: 邓亚西
Original assignee: Guangdong Vdl New Energy Co ltd
Current assignee: Guangdong Vdl New Energy Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-19
Anticipated expiration: 2031-10-26

Abstract

The utility model relates to the technical field of battery accessories and discloses a square steel shell for a sealed special-shaped battery, wherein a cover plate covers the top of a shell, an installation part is integrally formed at the edge of the top of the shell, a negative connecting sheet is fixedly connected to the center of the front surface of the shell, a liquid injection hole and a groove are respectively formed in two sides of the front surface of the shell, a liquid injection sealing piece is hermetically inserted in the liquid injection hole, a positive aluminum sheet is installed inside or outside the shell, and a sealing rubber sheet is installed between the shell and the positive aluminum sheet. Install sealed film between casing and anodal aluminum sheet to anodal aluminum sheet and casing pass through the hot pressing fixed, make anodal aluminum sheet and casing laminating form the seal, have the installation department at the top edge integrated into one piece of casing simultaneously, and with the cover plate welding in the installation department, be difficult for producing the shirt rim during the welding, sealing performance is stronger, and moisture is difficult to get into the inside adverse reaction that causes of battery, and the battery performance is more stable.

Description

Square steel shell for sealed special-shaped battery

Technical Field

The utility model relates to the technical field of battery accessories, in particular to a square steel shell for a sealed special-shaped battery.

Background

A battery refers to a device that converts chemical energy into electrical energy in a portion of the space of a cup, tank, or other container or composite container that holds an electrolyte solution and metal electrodes to produce an electrical current. Has a positive electrode and a negative electrode. With the progress of science and technology, batteries generally refer to small devices capable of generating electric energy, such as solar batteries, and special-shaped batteries belong to one type of batteries.

When the existing steel shell is used, the sealing performance is not good enough, water enters the interior easily, and meanwhile, the cover plate is welded with the steel shell to easily generate a skirt edge. Therefore, a square steel case for a sealed type special-shaped battery is provided by those skilled in the art to solve the problems set forth in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a square steel shell for a sealed special-shaped battery, wherein a sealing rubber sheet is arranged between a shell and an anode aluminum sheet, the anode aluminum sheet and the shell are fixed through hot pressing, so that the anode aluminum sheet and the shell are attached to form a sealed body, meanwhile, an installation part is integrally formed at the top edge of the shell, a cover plate is welded in the installation part, a skirt edge is not easy to generate during welding, the sealing performance is stronger, moisture is difficult to enter the battery to cause adverse reaction, and the battery performance is more stable.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a canned type dysmorphism is square steel shell for battery, includes the casing, the top lid of casing has closed the cover plate, and the top edge integrated into one piece of casing has the installation department, and the front surface center rigid coupling of casing has the negative pole connection piece, and the front surface both sides of casing have seted up respectively and have annotated liquid hole and recess, and the inside seal of annotating the liquid hole is pegged graft and has been annotated liquid sealing member, and anodal aluminum sheet is all installed to the inside or the outside of casing, installs sealed film between casing and the anodal aluminum sheet.

As a still further scheme of the utility model: the installation department is trapezoidal mouthful form or flat mouthful form, cover plate activity lock is in the inside of the installation department of trapezoidal mouthful form, and cover plate and installation department pass through welded fastening.

As a still further scheme of the utility model: the top of the cover plate and the top of the trapezoid mouth-shaped mounting part are positioned on the same horizontal line.

As a still further scheme of the utility model: the positive aluminum sheet and the shell are fixed through hot pressing, and the sealing rubber sheet is located between the positive aluminum sheet and the shell.

As a still further scheme of the utility model: the inside of the sealing rubber sheet is penetrated with a groove, and the front surface end part of the anode aluminum sheet is movably inserted in the two grooves.

As a still further scheme of the utility model: the positive aluminum sheet and the sealing film are both positioned inside or outside the shell, and the length and the width of the sealing film are both smaller than those of the positive aluminum sheet.

As a still further scheme of the utility model: the liquid injection sealing piece is a component made of rubber, and the liquid injection sealing piece is in a round table shape.

As a still further scheme of the utility model: the shell is a component made of stainless steel.

Compared with the prior art, the utility model has the beneficial effects that: install sealed film between casing and anodal aluminum sheet to anodal aluminum sheet and casing pass through the hot pressing fixed, make anodal aluminum sheet and casing laminating form the seal, have the installation department at the top edge integrated into one piece of casing simultaneously, and with the cover plate welding in the installation department, be difficult for producing the shirt rim during the welding, sealing performance is stronger, and moisture is difficult to get into the inside adverse reaction that causes of battery, and the battery performance is more stable.

Drawings

Fig. 1 is a schematic structural view of a square steel case for a sealed type special-shaped battery;

fig. 2 is an exploded view of a part of the inside of a square steel case for a sealed type special-shaped battery;

FIG. 3 is a schematic view showing an installation structure of an external sealing film in a square steel case for a sealed type irregular-shaped battery;

FIG. 4 is a schematic view showing the mounting structure of a trapezoidal opening-shaped mounting portion in a square steel case for a sealed type special-shaped battery;

fig. 5 is a schematic view of the mounting structure of a flat mounting portion in a square steel case for a sealed type special-shaped battery.

In the figure: 1. a liquid injection sealing piece; 2. a negative electrode connecting sheet; 3. an anode aluminum sheet; 4. a cover sheet; 5. a housing; 6. a liquid injection hole; 7. a groove; 8. sealing the rubber sheet; 9. an installation part.

Detailed Description

Example 1

Referring to fig. 1, 2 and 4, a square steel shell for a sealed special-shaped battery comprises a shell 5, a cover plate 4 is covered on the top of the shell 5, an installation part 9 is integrally formed at the edge of the top of the shell 5, a negative connection sheet 2 is fixedly connected to the center of the front surface of the shell 5, a liquid injection hole 6 and a groove 7 are respectively formed in two sides of the front surface of the shell 5, a liquid injection sealing piece 1 is inserted in the liquid injection hole 6 in a sealed manner, an anode aluminum sheet 3 is installed in the shell 5, and a sealing rubber sheet 8 is installed between the shell 5 and the anode aluminum sheet 3.

Preferably: installation department 9 is trapezoidal mouth form, and cover plate 4 activity lock is in the inside of the installation department 9 of trapezoidal mouth form, and cover plate 4 and installation department 9 pass through welded fastening.

Preferably: the top of the cover plate 4 and the top of the trapezoid mouth-shaped mounting part 9 are positioned on the same horizontal line.

Preferably: the positive aluminum sheet 3 and the shell 5 are fixed through hot pressing, and the sealing rubber sheet 8 is positioned between the positive aluminum sheet 3 and the shell 5.

Preferably: the inside of the sealing rubber sheet 8 is penetrated with a groove 7, and the front surface end part of the anode aluminum sheet 3 is movably inserted in the two grooves 7.

Preferably: the positive aluminum sheet 3 and the sealing film 8 are both positioned inside the shell 5, and the length and the width of the sealing film 8 are both smaller than those of the positive aluminum sheet 3.

Preferably: the liquid injection sealing member 1 is a rubber member, and the liquid injection sealing member 1 is in a circular truncated cone shape.

Preferably: the case 5 is made of stainless steel.

Example 2

Referring to fig. 3 and 5, a square steel shell for a sealed special-shaped battery comprises a shell 5, a cover plate 4 covers the top of the shell 5, an installation part 9 is integrally formed at the edge of the top of the shell 5, a negative connection sheet 2 is fixedly connected to the center of the front surface of the shell 5, a liquid injection hole 6 and a groove 7 are respectively formed in two sides of the front surface of the shell 5, a liquid injection sealing piece 1 is inserted in the liquid injection hole 6 in a sealed manner, an anode aluminum sheet 3 is installed outside the shell 5, and a sealing rubber sheet 8 is installed between the shell 5 and the anode aluminum sheet 3.

Preferably: the mounting part 9 is in a flat shape, and the cover plate 4 and the mounting part 9 are fixed by welding.

Preferably: the positive aluminum sheet 3 and the sealing film 8 are both positioned outside the shell 5, and the length and the width of the sealing film 8 are both smaller than those of the positive aluminum sheet 3.

Preferably: the case 5 is made of stainless steel.

During the use, will annotate liquid sealing member 1 and pull down on annotating liquid hole 6, be convenient for annotate the liquid this moment, then pass two recesses 7 in proper order with anodal aluminum sheet 3's end department, anodal aluminum sheet 3's end department can expose outside this moment, then fix anodal aluminum sheet 3 in casing 5 through the hot pressing, so install sealing film 8 between casing 5 and anodal aluminum sheet 3, and anodal aluminum sheet 3 and casing 5 are fixed through the hot pressing, make

anodal aluminum sheet

3 and 5 laminating form the seal, there is installation department 9 at the top edge integrated into one piece of casing 5 simultaneously, and weld cover plate 4 in installation department 9, be difficult for producing the shirt rim during the welding, sealing performance is stronger, moisture is difficult to get into the inside adverse reaction that causes of battery, battery performance is more stable.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides a canned type is square steel shell for special-shaped battery, including casing (5), a serial communication port, the top lid of casing (5) has closed cover plate (4), and the top edge integrated into one piece of casing (5) has installation department (9), the front surface center rigid coupling of casing (5) has negative pole connection piece (2), and the front surface both sides of casing (5) have been seted up respectively and have been annotated liquid hole (6) and recess (7), the inside seal of annotating liquid hole (6) is pegged graft and has been annotated liquid sealing member (1), anodal aluminum sheet (3) are all installed to the inside or the outside of casing (5), install between casing (5) and anodal aluminum sheet (3) sealing film (8).

2. The square steel case for the sealed special-shaped battery according to claim 1, wherein the mounting portion (9) is trapezoidal or flat, the cover plate (4) is movably fastened inside the trapezoidal mounting portion (9), and the cover plate (4) and the mounting portion (9) are fixed by welding.

3. The square steel case for the sealed type special-shaped battery according to claim 1, wherein the top of the cover plate (4) and the top of the trapezoidal mouth-shaped mounting portion (9) are located on the same horizontal line.

4. The square steel can for the sealed type special-shaped battery according to claim 1, wherein the positive electrode aluminum sheet (3) and the can (5) are fixed by hot pressing, and the sealing rubber sheet (8) is located between the positive electrode aluminum sheet (3) and the can (5).

5. The square steel case for the sealed special-shaped battery according to claim 1, wherein the grooves (7) are penetrated inside the sealing rubber sheet (8), and the front surface end of the positive aluminum sheet (3) is movably inserted inside the two grooves (7).

6. The square steel can for the sealed special-shaped battery according to claim 1, wherein the positive electrode aluminum sheet (3) and the sealing rubber sheet (8) are both positioned inside or outside the case (5), and the length and the width of the sealing rubber sheet (8) are both smaller than those of the positive electrode aluminum sheet (3).

7. The square steel case for the sealed type special-shaped battery according to claim 1, wherein the liquid injection sealing member (1) is a rubber member, and the liquid injection sealing member (1) has a circular truncated cone shape.

8. The prismatic steel can for the sealed type special-shaped battery according to claim 1, wherein the case (5) is a member made of stainless steel.