CN221928360U - Anti-falling battery cell shell structure - Google Patents

Abstract

The utility model belongs to the technical field of battery cell shells, in particular to an anti-falling battery cell shell structure, which comprises: a housing assembly and an anti-fall assembly; the shell component comprises a shell, a core body arranged in the shell and a connecting end fixed on the shell and electrically connected with the core body; the anti-falling component is arranged on the shell and comprises a thread groove formed in the middle of the shell, a thread inserted rod connected with the thread groove in a threaded mode, a thread strip fixed in the shell and connected with the thread groove, and an anti-falling plate inserted into the inner side of the thread inserted rod. According to the anti-falling assembly, the anti-falling plate, the spring and the filling cotton can be utilized to play a good role in buffering the core body in the shell, so that the overall anti-falling capacity of the battery core is improved, and the filling cotton is utilized to fill the shell, so that the core body is not excessively damaged after the shell is damaged by certain deformation, and a series of safety accidents are reduced.

Description

A drop-resistant battery core casing structure

Technical Field

The utility model relates to the technical field of battery core shells, in particular to a drop-resistant battery core shell structure.

Background Art

A battery cell refers to a single electrochemical cell containing positive and negative electrodes, which is generally not used directly. It is different from a battery which contains a protection circuit and a casing and can be used directly. Battery cells are divided into three types: aluminum shell cells, soft-pack cells (also known as "polymer cells"), and cylindrical cells. Usually mobile phone batteries use aluminum shell cells, digital products such as Bluetooth mostly use soft-pack cells, and laptop batteries use a series-parallel combination of cylindrical cells.

After a battery cell is dropped, the internal core is often damaged due to external deformation. The existing method to improve the battery cell's drop resistance is often to increase the shell strength. However, increasing the shell strength not only increases material costs, but also makes it more difficult to select materials, which often affects normal heat dissipation.

Utility Model Content

The utility model aims to solve one of the technical problems existing in the prior art or related technology.

To this end, the technical solution adopted in this utility model is:

A drop-resistant battery cell shell structure comprises: a shell component and an drop-resistant component; wherein the shell component comprises a shell, a core body arranged in the shell, and a connection end fixed to the shell and electrically connected to the core body; the drop-resistant component is arranged on the shell, and the drop-resistant component comprises a threaded groove opened in the middle of the shell, a threaded plug rod threadedly connected to the threaded groove, a threaded strip fixed in the shell and connected to the threaded groove, an drop-resistant plate inserted into the inner side of the threaded plug rod, a socket opened in the anti-drop plate and for the threaded strip to pass through, a spring fixed to the inner side of the shell, an inner liner arranged on the inner side of the spring, filling cotton filled between the shell and the inner liner, and a sleeve plate assembled on the filling cotton.

In a preferred example, the utility model can be further configured as follows: the anti-fall plate is an eight-shaped plate structure.

In a preferred example, the utility model can be further configured as follows: the thread groove is filled with a gasket located outside the threaded rod.

In a preferred example, the present invention can be further configured as follows: the thread strip is an internal thread arc strip structure.

In a preferred example, the present invention can be further configured as follows: a positioning groove for placing the anti-fall plate is opened in the middle of the shell.

In a preferred example, the utility model can be further configured as follows: a clamping rail for clamping the sleeve plate is fixed on the shell, and a heat dissipation port is opened on the sleeve plate.

The above technical solution of the utility model has the following beneficial technical effects:

1. The utility model uses an anti-fall component, and can utilize an anti-fall plate, a spring, and filling cotton inside the shell to provide a good buffering effect on the core, thereby improving the overall anti-fall ability of the battery core. By utilizing the filling setting of the filling cotton, even if the shell is subjected to certain deformation damage, it will not cause excessive damage to the core, thereby avoiding a series of safety accidents.

2. The utility model can adjust the strength of the anti-fall plate fixing the core body through the threaded insert rod and the threaded strip, thereby adjusting the anti-fall effect. After the middle part of the shell is squeezed, the compression deformation of the anti-fall plate will also reduce the pressure on the middle part of the core body, thereby reducing the damage to the core body, and the protective effect is better.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a cross-sectional view of the anti-fall battery core housing structure of the utility model;

FIG2 is an enlarged view of the structure A of the anti-fall battery core housing of the present invention;

FIG3 is an enlarged view of the structure B of the anti-fall battery core shell of the present invention.

Reference numerals:

100, housing assembly; 110, housing; 111, positioning groove; 112, rail; 120, core; 130, connection end;

200, anti-fall component; 210, threaded groove; 220, threaded rod; 221, gasket; 230, threaded strip; 240, anti-fall plate; 250, jack; 260, spring; 270, inner lining; 280, filling cotton; 290, sleeve; 291, heat dissipation port.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

A drop-resistant battery cell casing structure provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings.

As shown in Figures 1-3, the utility model provides a drop-resistant battery cell casing structure, including: a casing component 100 and an drop-resistant component 200; wherein the casing component 100 includes a shell 110, a core 120 disposed in the shell 110, and a connection terminal 130 fixed to the shell 110 and electrically connected to the core 120.

The anti-fall component 200 is arranged on the shell 110, and the anti-fall component 200 includes a thread groove 210 opened in the middle of the shell 110, a threaded rod 220 threadedly connected to the thread groove 210, a threaded strip 230 fixed in the shell 110 and connected to the thread groove 210, an anti-fall plate 240 inserted into the inner side of the threaded rod 220, a hole 250 opened in the anti-fall plate 240 and for the threaded strip 230 to pass through, a spring 260 fixed to the inner side of the shell 110, and a spring 260 arranged on the spring 260. 0, the inner liner 270 filled between the shell 110 and the inner liner 270, and the cover plate 290 assembled on the filling cotton 280, through the anti-fall component 200, can use the anti-fall plate 240, the spring 260 and the filling cotton 280 to play a good buffering role on the core 120 inside the shell 110, thereby improving the overall anti-fall ability of the battery core. By using the filling setting of the filling cotton 280, even if the shell 110 is subjected to certain deformation damage, it will not cause excessive damage to the core 120, thereby reducing the occurrence of a series of safety accidents.

Specifically, the strength of the anti-fall plate 240 fixing the core body 120 can be adjusted through the threaded rod 220 and the threaded strip 230, thereby adjusting the anti-fall effect. After the middle part of the shell 110 is squeezed, the compression deformation of the anti-fall plate 240 will also reduce the pressure on the middle part of the core body 120, thereby reducing the damage to the core body 120, and the protective effect is better.

Furthermore, the anti-fall plate 240 is an eight-shaped plate structure, and the threaded rod 220 can be turned to adjust the fixing force on the core body 120. At the same time, after the anti-fall plate 240 is subjected to force, the force is unloaded to the side, thereby reducing the damage to the middle part of the core body 120.

On the other hand, the thread groove 210 is filled with a gasket 221 located on the outside of the threaded rod 220 , which can seal the thread groove 210 and protect the threaded rod 220 .

It should be noted that the thread strip 230 is an internal thread arc strip structure, which allows the threaded rod 220 to continue to rotate internally after leaving the thread groove 210, thereby increasing the adjustment range.

Furthermore, a positioning groove 111 is provided in the middle of the shell 110 for placing the anti-fall plate 240, and the middle of the anti-fall plate 240 can be aligned and placed therein to prevent the anti-fall plate 240 from moving left and right, thereby achieving a positioning effect.

On the other hand, a rail 112 for mounting the sleeve 290 is fixed on the shell 110, and a heat dissipation port 291 is provided on the sleeve 290, so that the sleeve 290 can slide on the rail 112, and then the sleeve 290 is used to protect the connection end 130 to reduce damage to the connection end 130.

The working principle and use process of the utility model are as follows: first, the core body 120 is placed inside the inner liner 270, and after the installation is completed, the cover plate 290 is slid to the outside of the connecting end 130. When the battery cell falls, the anti-fall plate 240, spring 260 and filling cotton 280 inside the shell 110 have a good buffering effect on the core body 120, thereby improving the overall anti-fall ability of the battery cell.

Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims (6)

1. An anti-crash cell housing structure, comprising:

The shell assembly (100) comprises a shell (110), a core (120) arranged in the shell (110) and a connecting end (130) fixed on the shell (110) and electrically connected with the core (120);

The anti-falling component (200) is arranged on the shell (110), the anti-falling component (200) comprises a thread groove (210) formed in the middle of the shell (110), a thread inserting rod (220) connected with the thread groove (210) in a threaded mode, a thread strip (230) fixed in the shell (110) and connected with the thread groove (210), an anti-falling plate (240) inserted into the inner side of the thread inserting rod (220), an inserting hole (250) formed in the anti-falling plate (240) and used for the thread strip (230) to penetrate through, a spring (260) fixed in the inner side of the shell (110), an inner lining (270) arranged in the inner side of the spring (260), filling cotton (280) filled between the shell (110) and the inner lining (270) and a sleeve plate (290) assembled on the filling cotton (280).

2. The anti-drop cell housing structure of claim 1, wherein the anti-drop plate (240) is a splayed plate-like structure.

3. The anti-drop cell housing structure of claim 1, wherein the threaded groove (210) is filled with a spacer (221) located outside the threaded insert (220).

4. The anti-drop cell housing structure of claim 1, wherein the threaded bar (230) is an internally threaded arcuate bar structure.

5. The anti-falling battery cell casing structure according to claim 1, wherein a positioning groove (111) for placing the anti-falling plate (240) is formed in the middle of the casing (110).

6. The anti-drop cell housing structure according to claim 1, wherein a clamping rail (112) for clamping the sleeve plate (290) is fixed on the housing (110), and a heat dissipation opening (291) is formed in the sleeve plate (290).