CN219513225U

CN219513225U - Lithium battery cover plate with good protection effect

Info

Publication number: CN219513225U
Application number: CN202320562164.8U
Authority: CN
Inventors: 周子轩
Original assignee: Jiangsu Yuhao New Energy Technology Co ltd
Current assignee: Jiangsu Yuhao New Energy Technology Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-08-11
Anticipated expiration: 2033-03-21

Abstract

The utility model relates to a lithium battery cover plate with good protection effect, which aims to solve the technical problems that the current electrode plate and the lithium battery cover plate are inconvenient to assemble and disassemble and the electrode plate has poor contact in the use process; the utility model realizes the assembly type installation of the electrode plate and the lithium battery cover plate, saves the time of an operator when the electrode plate is disassembled and assembled, and improves the convenience of the electrode plate when the electrode plate is disassembled and replaced.

Description

Lithium battery cover plate with good protection effect

Technical Field

The utility model relates to the field of lithium battery cover plates, in particular to a lithium battery cover plate with a good protection effect.

Background

The lithium battery consists of a shell, a lithium battery core and a cover plate, wherein the lithium battery core is arranged in the shell and can be called as a winding core, and comprises a positive plate, a diaphragm and a negative plate, the diaphragm separates the positive plate from the negative plate, positive plate foil and negative plate foil extending parts are arranged on two sides of the lithium battery core, and the cover plate is arranged on the upper part of the lithium battery core and is welded and sealed with the lithium battery core to form the battery. The cover plate is a main part of the lithium battery and comprises a cover plate base body, positive and negative electrode columns, a sealing gasket, an electrode pressing plate, an electrode lead and other parts.

As known from the publication 202221458892.6, a lithium battery cover plate with good protection effect comprises a cover plate body; insulating support: positive and negative poles; the characteristics are as follows: the lithium battery cell also comprises an anode electrode lead and a cathode electrode lead, which are electrically connected with the lithium battery cell; the utility model discloses a lithium battery cover plate, which is characterized in that a pressure relief hole is formed in the middle of the length direction of the cover plate body, the pressure relief hole is of a kidney-shaped hole structure, a pressure relief explosion-proof mechanism is arranged in the pressure relief hole, the pressure relief explosion-proof mechanism comprises an explosion-proof membrane and an explosion-proof protection film, the explosion-proof film is arranged on the bottom position of the pressure relief hole, the explosion-proof protection film is adhered to the upward facing side surface of the cover plate body and covers the pressure relief hole, the shape of the explosion-proof protection film is matched with the shape of the pressure relief hole, vent holes are formed in semicircular parts at the left end and the right end of the explosion-proof protection film, the vent holes are of arc-shaped hole structure, and in the process of realizing the utility model, the inventor finds that at least the following problems are not solved in the prior art, the explosion-proof protection film can block dust, expand the exhaust capacity and promote the safety under the condition that the electrode plate is burst, prevent the expansion deformation of an insulating bracket and ensure the installation reliability, and avoid the corrosion problem of the cover plate body, the traditional cover plate and the lithium battery cover plate are generally fixed through gluing or welding, convenience in the assembly and replacement is reduced, and the adhesion between an electric plate and a poor electrifying phenomenon is easy to occur when the electrode plate is in the process. For this reason, new solutions need to be designed to solve.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, adapt to the actual needs, and provide the lithium battery cover plate with good protection effect, so as to solve the technical problems that the current electrode plate and the lithium battery cover plate are inconvenient to disassemble and assemble and the electrode plate has poor contact in the use process.

In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows: the lithium battery cover plate with the good protection effect comprises a cover plate, wherein conductive plates are symmetrically arranged on two sides of the cover plate, a sleeve is welded on the surface of each conductive plate, the sleeve is connected with a conductive column through a spring, and the other end of each conductive column is fixedly connected with a power connection plate;

the periphery of the conducting plate is provided with an insulating isolation frame, the inner side surface of the insulating isolation frame is provided with a limit groove, the lower part of one end of the limit groove is provided with a slot, the slot is connected with a baffle through a plugboard, and one side of the baffle is detachably provided with an electrode plate.

Preferably, one end of the spring is fixedly connected to the bottom end inside the sleeve, and the other end of the spring is fixedly connected to one end of the conductive column.

Preferably, the outer diameter of the conductive post is identical to the inner diameter of the sleeve, and is movably connected with the inner wall of the sleeve.

Preferably, the periphery of the electricity connection plate is movably connected with the inner wall of the insulating isolation frame, and the upper surface of the electricity connection plate is propped against the bottom of the electrode plate.

Preferably, the plugboard is fixedly connected to two ends of the baffle, and is movably connected with the inner wall of the slot.

Preferably, limiting plates are fixedly connected to two sides of the electrode plate, and the size of each limiting plate is identical to that of each limiting groove and is movably connected with the inner wall of each limiting groove.

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

1. according to the utility model, through the combination of the insulating isolation frame, the limit groove, the slot, the plugboard, the baffle, the electrode plate and the limit plate, when the electrode plate is installed, an operator directly inserts the limit plates at two ends of the electrode plate into the limit groove, and enables the limit plates to move in the limit groove, when the baffle is contacted with the insulating isolation frame, the plugboards at two ends of the baffle are inserted into the slot, so that the electrode plate and the lithium battery cover plate are assembled, the time of the operator when the electrode plate is disassembled is saved, and the convenience of the electrode plate when the electrode plate is disassembled and replaced is improved.

2. According to the utility model, through the combination of the conductive plate, the sleeve, the spring, the conductive column and the electrode plate, when the electrode plate is installed in the insulating isolation frame, the spring can generate a rebound force on the conductive column, so that the conductive column drives the electrode plate to contact with the electrode plate, thereby achieving the electrifying effect, improving the laminating property between the electrode plate and the electrode plate, avoiding the phenomenon of poor contact of the electrode plate when the electrode plate is electrified, and preventing the electrode plate from loosening.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a circuit board structure according to the present utility model;

FIG. 3 is an expanded view of the present utility model;

FIG. 4 is a schematic view of an electrode plate structure according to the present utility model;

fig. 5 is a cross-sectional view of a sleeve of the present utility model.

In the figure: 1. a cover plate; 11. a conductive plate; 12. a sleeve; 121. a spring; 122. a conductive post; 13. a power connection plate; 14. an insulating isolation frame; 15. a limit groove; 16. a slot; 17. inserting plate; 18. a baffle; 19. an electrode plate; 191. and a limiting plate.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

example 1: the lithium battery cover plate 1 with good protection effect is shown in fig. 1 to 5, and comprises a cover plate 1, wherein conductive plates 11 are symmetrically arranged on two sides of the cover plate 1, a sleeve 12 is welded on the surface of each conductive plate 11, the sleeve 12 is connected with a conductive column 122 through a spring 121, the other end of each conductive column 122 is fixedly connected with a power connection plate 13, when an electrode plate 19 is arranged in an insulating isolation frame 14, the spring 121 can generate a rebound force on the conductive column 122, so that the conductive column 122 drives the power connection plate 13 to be in contact with the electrode plate 19, the electrifying effect is achieved, the laminating property between the power connection plate 13 and the electrode plate 19 is improved, and the phenomenon of poor contact of the electrode plate 19 during electrifying is avoided;

the periphery of the conducting plate 11 is provided with the insulating isolation frame 14, the inner side surface of the insulating isolation frame 14 is provided with the limit groove 15, the lower part of one end of the limit groove 15 is provided with the slot 16, the slot 16 is connected with the baffle 18 through the plugboard 17, one side of the baffle 18 is detachably provided with the electrode plate 19, when the electrode plate 19 is installed, an operator directly inserts the limit plates 191 at two ends of the electrode plate 19 into the limit groove 15, and the limit plates 191 move in the limit groove, when the baffle 18 is contacted with the insulating isolation frame 14, the plugboards 17 at two ends of the baffle are inserted into the slot 16, so that the electrode plate 19 and the lithium battery cover plate 1 are assembled, the time of the operator when the electrode plate 19 is disassembled is saved, and the convenience of the electrode plate 19 when the electrode plate 19 is disassembled and replaced is improved.

Specifically, referring to fig. 5, one end of the spring 121 is fixedly connected to the bottom end inside the sleeve 12, and the other end of the spring 121 is fixedly connected to one end of the conductive post 122, so that the spring 121 can generate a repulsive force to the conductive post 122, so that the conductive post 122 stretches inside the sleeve 12, and the height of the power receiving plate 13 is adjusted.

Further, referring to fig. 5, the outer diameter of the conductive post 122 is identical to the inner diameter of the sleeve 12, and is movably connected with the inner wall of the sleeve, so that the anastomosis between the conductive post 122 and the inner wall of the sleeve 12 is improved, and the shaking phenomenon between the conductive post 122 and the sleeve 12 is avoided.

It should be noted that, referring to fig. 1 and fig. 2, the periphery of the electric connection plate 13 is movably connected with the inner wall of the insulating isolation frame 14, and the upper surface of the electric connection plate 13 is abutted against the bottom of the electrode plate 19, so that the electric connection plate 13 is convenient to carry the anastomosis between the insulating isolation frames 14, and the phenomenon that the electrode plate 19 is loosened when in use is prevented.

It should be noted that, referring to fig. 3, the inserting plate 17 is fixedly connected to two ends of the baffle 18 and movably connected to the inner wall of the slot 16, and the inserting plate 17 is inserted into the slot 16, so as to limit the position of the baffle 18, and improve the anastomosis between the baffle 18 and the insulating isolation frame 14.

It should be noted that, referring to fig. 4, limiting plates 191 are fixedly connected to two sides of the electrode plate 19, the size of the limiting plates 191 is identical to the size of the limiting grooves 15, and the limiting plates 191 are movably connected with the inner walls of the limiting grooves, so that the limiting plates 191 are conveniently inserted into the limiting grooves 15, and the positions of the electrode plate 19 are limited, and the phenomenon of position deviation of the electrode plate 19 is avoided.

In addition, the components designed by the utility model are all universal standard components or components known by the person skilled in the art, the structures and principles of the components are all known by the person skilled in the art through technical manuals or known by routine experimental methods, and the utility model can be completely realized by the person skilled in the art.

The embodiments of the present utility model are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various modifications and variations can be made without departing from the spirit of the present utility model.

Claims

1. The lithium battery cover plate with the good protection effect is characterized by comprising a cover plate (1), wherein conductive plates (11) are symmetrically arranged on two sides of the cover plate (1), a sleeve (12) is welded on the surface of each conductive plate (11), the sleeve (12) is connected with a conductive column (122) through a spring (121), and the other end of each conductive column (122) is fixedly connected with a power connection plate (13);

the periphery of the conducting plate (11) is provided with an insulating isolation frame (14), the inner side surface of the insulating isolation frame (14) is provided with a limit groove (15), the lower part of one end of the limit groove (15) is provided with a slot (16), the slot (16) is connected with a baffle plate (18) through a plugboard (17), and one side of the baffle plate (18) is detachably provided with an electrode plate (19).

2. The lithium battery cover plate with good protection effect according to claim 1, wherein one end of the spring (121) is fixedly connected to the bottom end inside the sleeve (12), and the other end of the spring (121) is fixedly connected to one end of the conductive column (122).

3. The lithium battery cover plate with good protection effect according to claim 1, wherein the outer diameter of the conductive column (122) is identical to the inner diameter of the sleeve (12) and is movably connected with the inner wall of the sleeve.

4. The lithium battery cover plate with good protection effect according to claim 1, wherein the periphery of the power connection plate (13) is movably connected with the inner wall of the insulating isolation frame (14), and the upper surface of the power connection plate (13) is abutted against the bottom of the electrode plate (19).

5. The lithium battery cover plate with good protection effect according to claim 1, wherein the plugboard (17) is fixedly connected to two ends of the baffle (18) and is movably connected with the inner wall of the slot (16).

6. The lithium battery cover plate with good protection effect according to claim 1, wherein limiting plates (191) are fixedly connected to two sides of the electrode plate (19), and the size of the limiting plates (191) is identical to that of the limiting grooves (15) and is movably connected with the inner wall of the limiting grooves.