CN218242159U - Can improve bad core structure that closes of electric core short circuit - Google Patents

Abstract

The utility model discloses a core-closing structure capable of improving the bad short circuit of an electric core, which comprises a cover plate supporting plate, an electric core supporting plate, a rotating structure and a pressing plate, wherein the cover plate supporting plate is provided with a cover plate, both sides of the cover plate are provided with the electric core supporting plate, and the electric core supporting plate is provided with an electric core; the pressing plates are arranged at two ends of the cell supporting plate and used for pressing and fixing the cell; both ends of the cover plate are provided with rotating structures, and the rotating structures are connected with the cell supporting plate and used for combining the cell.

Description

Can improve bad core structure that closes of electric core short circuit

Technical Field

The utility model relates to a lithium cell technical field especially relates to a can improve bad core structure that closes of electric core short circuit.

Background

The inner part of the aluminum shell lithium battery at the present stage is formed by combining 2 or more naked battery cores, the 2 naked battery cores are respectively fixed on an aluminum shell cover plate through a pole lug and a switching piece, and are stacked and combined through a core combining process, and are fixed by adhesive tape, and the naked battery cores are placed into a shell after a film is formed;

in the current industry, two battery cells are horizontally placed on supporting plates at two sides, the battery cells are fixed on the supporting plates by stop blocks, and the supporting plates are rotated by 90 degrees by a rotating cylinder, so that the battery cells on the two supporting plates are superposed;

because the stop block is made of hard materials, the fixation is realized by pressurizing the two sides of the battery cell, and because the sizes of the battery cells are different and the battery cell rotates due to the position of gravity, the pressure applied by the stop block to the battery cell cannot be consistent, and the negative pole pieces on the two sides of the battery cell are broken and pulverized under the action of external force;

the falling pole powder is in the battery cell, so that the battery cell is easy to cause micro short circuit in the subsequent charging and discharging processes, and the self-discharge pressure difference is large; when the damaged pole piece is in the road condition of the battery core, the diaphragm can be punctured to cause the contact of the positive pole and the negative pole, so that potential safety hazards exist;

therefore, the fixing mode of the existing core-closing mechanism needs to be improved and lifted, so that the risk is reduced.

To the technical problem, the utility model provides a can improve the bad core structure that closes of electric core short circuit.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's defect, provide one kind and can improve the bad core structure that closes of electric core short circuit, cancel the fixed mode of cylinder dog electric core, avoid causing the negative pole to fall whitewashed, damaged.

In order to realize the above purpose, the utility model adopts the following technical scheme:

a core combining structure capable of improving the short circuit failure of an electric core comprises a cover plate supporting plate, an electric core supporting plate, a rotating structure and a pressing plate, wherein a cover plate is arranged on the cover plate supporting plate, the electric core supporting plate is arranged on each of two sides of the cover plate, and the electric core is arranged on the electric core supporting plate; the pressing plates are arranged at two ends of the cell supporting plate and used for pressing and fixing the cell; both ends of the cover plate are provided with rotating structures, and the rotating structures are connected with the cell supporting plate and used for combining the cell.

Further, revolution mechanic includes fixed block, rotating electrical machines, swing arm, and the rotating electrical machines sets up in fixed block one side, and the one end and the rotating electrical machines of swing arm are connected, and the other end and the electric core layer board one end of swing arm are connected.

Furthermore, a stop block is further arranged on one side of the battery cell supporting plate and used for stopping the falling of the battery cell.

Furthermore, a vacuum chuck is arranged below the battery cell supporting plate, and a vacuum hole corresponding to the position of the vacuum chuck is formed in the battery cell supporting plate, so that the vacuum chuck can adsorb and fix the battery cell.

Furthermore, the bottom of the cover plate supporting plate is also provided with an air cylinder for moving the cover plate.

Compared with the prior art, the utility model discloses set up the briquetting on electric core layer board, and electric core layer board adopts vacuum chuck, can avoid closing the fixed in-process of core and cause electric core edge pole piece to fall whitewashed, damaged.

Drawings

Fig. 1 is a front cross-sectional view of a core combining structure capable of improving a cell short circuit failure according to a first embodiment;

fig. 2 is a top cross-sectional view of a core combining structure capable of improving a cell short circuit according to an embodiment;

FIG. 3 is a top cross-sectional view of a core assembly provided in accordance with an embodiment;

FIG. 4 is a schematic diagram of the movement of the core combining structure provided in the first embodiment;

FIG. 5 is a schematic diagram of the movement of the core combining structure provided in the first embodiment;

FIG. 6 is a schematic diagram of the movement of the core combining structure provided in the first embodiment;

FIG. 7 is a schematic diagram of the movement of the core combining structure provided in the first embodiment;

wherein: 1. a cover plate supporting plate; 2. a battery cell supporting plate; 21. a vacuum hole; 3. a rotating structure; 31. a fixed block; 32. a rotating electric machine; 33. swinging arms; 4. pressing a plate; 5. a stopper; 6. and a cylinder.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

The utility model aims at prior art's defect, provide one kind and can improve the bad core structure that closes of electric core short circuit.

Example one

The embodiment provides a core combining structure capable of improving poor short circuit of a battery cell, as shown in fig. 1-3, the core combining structure comprises a cover plate supporting plate 1, a battery cell supporting plate 2, a rotating structure 3, a pressing plate 4, a stop block 5, a cylinder 6 and a vacuum chuck.

The cover plate supporting plate 1 is of a square structure, and the cover plate supporting plate 1 is used for placing a cover plate and supporting the cover plate.

The air cylinder 6 is arranged at the bottom of the cover plate supporting plate 1, a piston rod of the air cylinder 6 is connected with the bottom of the cover plate supporting plate 1, and when the air cylinder moves, the piston rod drives the cover plate bottom plate 1 to move up and down so as to drive the cover plate to move up and down, so that the height change of the cover plate is realized; in the core combining process of the battery core, the height of the cover plate needs to be matched to descend, and further the damage of the electrode lug folds is avoided.

The battery cell supporting plates 2 are of square structures, the number of the battery cell supporting plates 2 is two, and the two battery cell supporting plates 2 are respectively arranged on two sides of the cover plate but are not connected with the cover plate and the cover plate supporting plate 1; two electric core layer boards 2 all are used for placing electric core to the realization is to the core effect of closing of electric core.

Several vacuum holes 21 are formed in the battery core supporting plate 2, the bottom of the battery core supporting plate 2 corresponding to the positions of the vacuum holes 21 is provided with a vacuum sucker, the height of the vacuum sucker is consistent with the height of the battery core supporting plate 2, the vacuum sucker adsorbs a battery core placed on the battery core supporting plate 2 based on the vacuum holes 21, and then the battery core is fixed, and the battery core is prevented from moving in the core closing work. It should be noted that the number of vacuum suction cups can be set according to actual conditions.

Two ends of each cell supporting plate 2 are respectively provided with two pressing plates 4, namely 4 pressing plates 4 are arranged on each cell pressing plate 2, and 8 pressing plates 4 are arranged on the two cell supporting plates 2; the pressing plate 4 is a horizontal pressing plate, and the pressing plate 4 is controlled to ascend and rotate by compressed air; under the initial condition, the direction of clamp plate 4 and the direction level at electric core layer board 2 both ends, after electric core arranged in electric core layer board 2, clamp plate 4 lifted to 90 degrees rotations for the direction of clamp plate 4 is perpendicular with the direction at electric core layer board 2 both ends, then pushes down clamp plate 4 and fixes electric core.

One side that every electric core layer board 2 is close to apron 1 is equipped with dog 5, and dog 5 is used for when closing the core structure and become invalid, can block electric core whereabouts once more, avoids electric core damage completely.

The rotating structure 3 comprises a fixing block 31, a rotating motor 32 and a swing arm 33, the rotating motor 32 is arranged on one side of the fixing block 31, one end of the swing arm 33 is connected with the rotating motor 32, and the other end of the swing arm 33 is connected with one end of the battery cell supporting plate 2 through a screw. Rotary mechanism 3 sets up in the both ends of apron, and the one end of every electric core layer board 2 all is connected with a swing arm 33, and consequently this embodiment is equipped with 4 rotary mechanism 3 altogether.

As shown in fig. 4 to 7, a method for using a core combining structure capable of improving a cell short circuit failure in this embodiment includes:

the cover plate is arranged on the cover plate supporting plate, the battery cell is arranged on the battery cell supporting plate, the ascending and the rotation of the pressing plate are controlled through compressed air, the pressing plate is pressed on the upper surface of the battery cell, the battery cell is further fixed, and meanwhile, the vacuum chuck adsorbs the bottom of the battery cell, so that the battery cell is further fixed; after electric core was fixed, the rotating electrical machines started, and the rotating electrical machines drives the swing arm rotatory, and then drives the electric core upwards rotatory of arranging in on the electric core layer board, finally makes two electric cores close the core.

Compared with the prior art, the utility model discloses set up the briquetting on electric core layer board, and electric core layer board adopts vacuum chuck, can avoid closing the fixed in-process of core and cause electric core edge pole piece to fall whitewashed, damaged.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (5)

1. A core combining structure capable of improving the poor short circuit of an electric core is characterized by comprising a cover plate supporting plate, an electric core supporting plate, a rotating structure and a pressing plate, wherein the cover plate supporting plate is provided with a cover plate, the two sides of the cover plate are provided with the electric core supporting plate, and the electric core supporting plate is provided with an electric core; the pressing plates are arranged at two ends of the cell supporting plate and used for pressing and fixing the cell; both ends of the cover plate are provided with rotating structures, and the rotating structures are connected with the cell supporting plate and used for combining the cell.

2. The core combining structure capable of improving the electrical core short circuit failure according to claim 1, wherein the rotating structure comprises a fixing block, a rotating motor and a swing arm, the rotating motor is disposed on one side of the fixing block, one end of the swing arm is connected with the rotating motor, and the other end of the swing arm is connected with one end of the electrical core supporting plate.

3. The core combining structure capable of improving the cell short circuit failure according to claim 1, wherein a stopper is further disposed on one side of the cell supporting plate, so as to stop the falling of the cell.

4. The core combining structure capable of improving the electrical core short circuit failure according to claim 1, wherein a vacuum chuck is disposed under the electrical core supporting plate, and a vacuum hole corresponding to the vacuum chuck is disposed on the electrical core supporting plate, so that the vacuum chuck can adsorb and fix the electrical core.

5. The core combining structure capable of improving the electrical core short circuit failure according to claim 1, wherein a cylinder is further disposed at the bottom of the cover plate supporting plate, and is used for moving the cover plate.

Images