CN211404647U

CN211404647U - Battery charge-discharge cycle anchor clamps pressure device

Info

Publication number: CN211404647U
Application number: CN201921504412.3U
Authority: CN
Inventors: 许晓雄; 肖孝建; 段广科; 林晓; 陶金; 周春龙; 张永龙
Original assignee: Zhejiang Funlithium New Energy Tech Co Ltd
Current assignee: Zhejiang Funlithium New Energy Tech Co Ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-09-01
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a battery charge-discharge cycle anchor clamps pressure device relates to battery test field, mainly includes the base, be equipped with a plurality of guide posts of vertical on the base, the upper end of guide post is equipped with the backup pad of taking loading system with, and simultaneously, the guide post is worn to establish the anchor clamps board that same confession anchor clamps were placed, be provided with a plurality of expanding spring between anchor clamps board and the base. Through adopting above-mentioned technical scheme, but at first on the anchor clamps board anchor clamps place, when loading mechanism exerts pressure to anchor clamps, if the power that anchor clamps pressurized is too big, expanding spring will compress to just can play the cushioning effect to the anchor clamps board, anchor clamps also can obtain the buffering to the effort of battery like this, thereby reduced the probability that the battery received too big pressure.

Description

Battery charge-discharge cycle anchor clamps pressure device

Technical Field

The utility model relates to a battery test field, in particular to battery charge-discharge cycle anchor clamps pressure device.

Background

As a lithium battery needed in application scenes of electric automobiles, space power supplies, energy storage systems and the like, the lithium battery mainly comprises basic parts such as a positive pole piece, a diaphragm, a negative pole piece, and electrolyte filled in pores of the pole piece and the diaphragm.

Among them, the requirements of the above application fields on battery performance, such as cycle life, calendar life, energy density, low cost, etc., are increasing, so that the positive electrode material system of lithium batteries is continuously developed from the NCM111 to the high nickel system of the NCM523, the NCM622 system, or even the NCM811 or more, and the negative electrode material is also developed from the high energy density material systems of graphite, silicon carbon, or even metal lithium.

However, when a high energy density material is used, high volume expansion inevitably occurs during the cycle, which easily causes the electrode material to be separated from the current collector. Meanwhile, when the conventional soft package battery cell is used for testing the cycle life, the test is mainly aimed at the charge and discharge life test in a state without mechanical pressure, the electrochemical performance of the lithium ion battery is negatively affected by both overhigh and overlow external mechanical pressure, and finally the cycle life of the battery is reduced, so that the mechanical pressure is difficult to avoid when the lithium ion battery is used.

Therefore, it is necessary to design a pressurizing device for a battery charging and discharging cycle clamp with high precision, reliability, effectiveness and simple operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a battery charge-discharge circulation, its staff of being convenient for in time adjusts the operation to battery pressurization to the probability of damage appears because of the pressurization operation has been reduced to the battery.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a battery charge-discharge cycle anchor clamps pressure device, includes the base, be equipped with a plurality of guide posts of vertical on the base, the upper end of guide post is equipped with the backup pad of taking loading system with, and simultaneously, the guide post is worn to establish the anchor clamps board that same confession anchor clamps were placed, be provided with a plurality of expanding spring between anchor clamps board and the base.

Through adopting above-mentioned technical scheme, but at first on the anchor clamps board anchor clamps place, when loading mechanism exerts pressure to anchor clamps, if the power that anchor clamps pressurized is too big, expanding spring will compress to just can play the cushioning effect to the anchor clamps board, anchor clamps also can obtain the buffering to the effort of battery like this, thereby reduced the probability that the battery received too big pressure.

Preferably, the pressurizing mechanism comprises a pressurizing rod penetrating through the support plate, a pressurizing module and a pressure gauge, the pressurizing rod is positioned below the pressurizing module, and the pressure gauge is positioned at the upper end of the pressurizing module.

Through adopting above-mentioned technical scheme, the manometer shows pressure data on the one hand, can let operating personnel in time acquire the information like this to carry out corresponding adjustment, thereby also can further reduce the battery because the probability that receives too big pressure.

Preferably, the lower end of the pressurizing rod is provided with a circular pressure block.

Through adopting above-mentioned technical scheme, set the pressure piece to circular, can guarantee the homogeneity of anchor clamps pressure like this, reduce the too big possibility of local pressure.

Preferably, a support table is arranged below the base, a fixing bolt penetrates through the base from top to bottom, and the fixing bolt is in threaded connection with the support table.

Through adopting above-mentioned technical scheme, the base passes through fixing bolt installation and brace table on, has made things convenient for like this to carry out the dismouting between base and the brace table, and the brace table helps improving the height of base again, can adjust according to the operating personnel of different heights like this to the operating personnel of being convenient for operate.

Preferably, the two symmetrical side surfaces of the support platform are provided with L-shaped limit plates.

Through adopting above-mentioned technical scheme, when the limiting plate of L type is fixed subaerial, can play limiting displacement to the brace table to can reduce pressure device at the operation in-process, take place to remove.

Preferably, the fixing bolt is provided with a support piece below the base, and the support piece is abutted against the lower surface of the base.

Through adopting above-mentioned technical scheme, utilize the backing sheet to play to make the base, fixing bolt is at rotatory flexible in-process like this, and the height of base also can take place to go up and down, is favorable to carrying out the level fine setting to the base like this to also be favorable to guaranteeing the even atress of anchor clamps.

Preferably, the number of the guide posts is four, and the guide posts are respectively positioned at four corners of the base.

Through adopting above-mentioned technical scheme, through the setting of four guide posts, be favorable to guaranteeing the base to go up and down steadily like this.

Preferably, the circumferential surface of the guide post is provided with an oil storage seam along the axial direction.

Through adopting above-mentioned technical scheme, can add some lubricating oil to the oil storage seam to be favorable to keeping the lubricated effect between guide post and the base for a long time, and then be favorable to reducing the wearing and tearing between guide post and the base.

To sum up, the utility model discloses a beneficial technological effect does:

1. the telescopic spring is arranged between the clamp plate and the base, so that when the pressurizing mechanism applies pressure to the clamp on the clamp plate, the telescopic spring can play a role in buffering the clamp plate, and the possibility of overlarge stress of the clamp is reduced;

2. the arrangement of the fixing bolt can finely adjust the height of the base, so that the clamp can be more uniform when stressed;

3. the limiting plate can limit the supporting table, and the possibility of deviation of the pressurizing device in the operation process is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a battery charge-discharge cycle clamp machining device;

fig. 2 is a schematic structural view of the fixing bolt.

In the figure, 1, a base; 11. a tension spring; 2. a guide post; 21. oil storage seam; 3. a support plate; 4. a clamp plate; 41. a sliding bearing; 5. a pressurizing mechanism; 51. a hydraulic cylinder; 52. a pressurizing rod; 521. a pressure block; 53. a pressure gauge; 6. a support table; 61. fixing the bolt; 611. a support sheet; 7. and a limiting plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A battery charge-discharge cycle clamp pressurizing device is shown in figure 1 and comprises a rectangular base 1, wherein four corners of the base 1 are respectively vertically and upwards fixed with a guide post 2, the upper end parts of the guide posts 2 are respectively fixed with a same supporting plate 3, and four corners of the supporting plate 3 are respectively fixed with the upper end parts of the guide posts 2.

In addition, the same clamp plate 4 is all established to four guide posts 2 cover, and guide posts 2 are located four angles departments of clamp plate 4, and here clamp plate 4 can reciprocate along guide posts 2. And a jig for pressing the battery is located at the center of the jig plate 4. In addition, the oil storage slot 21 is opened on the circumferential surface of the guide post 2, so that the guide post 2 and the clamp plate 4 can be kept in a good lubricating state, and the abrasion between the guide post 2 and the clamp plate can be reduced.

Furthermore, the sliding bearing 41 is provided on the clamp plate 4, and the sliding bearing 41 is sleeved on the guide post 2, so that the clamp plate 4 and the sliding bearing 41 can slide more smoothly.

In addition, the support plate 3 is provided with a pressurizing mechanism 5, and the pressurizing mechanism 5 comprises a pressurizing module, a pressurizing rod 52 and a pressure display module. Wherein the pressure rod 52 vertically penetrates the support plate 3 and is located at the center of the clamp plate 4, which can directly apply pressure to the clamp. And, the lower end of the pressurizing rod 52 is rounded and the pressurizing module is located above the pressurizing rod 52 and fixed to the support plate 3. Moreover, the pressure display module is positioned on the pressurizing module and can display the pressure applied by the pressurizing module. The pressurizing module may be a hydraulic, pneumatic or servo motor, here a hydraulic cylinder 51, and the pressure display module is a pressure gauge 53. Therefore, an operator can control the operation of the pressurizing rod 52 in time according to the data displayed by the pressure arm, and the damage to the battery caused by overlarge pressure is reduced.

Secondly, a plurality of expanding springs 11 have directly been installed to anchor clamps board 4 and base 1, and expanding springs 11 to respectively the butt clamp board 4 and base 1, like this when the pressure of pressure pole 52 is too big, expanding springs 11 can play the cushioning effect to just also can step by step reduce the possibility that the battery takes place to damage.

As shown in fig. 1 and 2, a supporting platform 6 is further disposed below the base 1, and the base 1 and the supporting platform 6 are fixed by four fixing bolts 61. Here, the fixing bolt 61 passes through the base 1 from top to bottom and is screwed to the support table 6. Therefore, the overall height of the pressurizing device can be increased, and the operation of operators is facilitated. Meanwhile, the fixing bolt 61 is further provided with a round supporting piece 611 below the base 1, and the supporting piece 611 is also abutted to the lower surface of the base 1, so that the base 1 can be finely adjusted by screwing the fixing bolt 61, thereby being beneficial to ensuring the levelness of the base 1, further being beneficial to ensuring the uniform stress of the clamp, and reducing the possibility of damage of the battery due to overlarge local stress.

And, two symmetrical lateral surfaces of the supporting platform 6 are respectively provided with an L-shaped limiting plate 7, wherein the limiting plates 7 are supported by metal. And the vertical part of the L-shaped limiting plate 7 is fixed with the side surface of the support table 6, and the horizontal part is fixed with the operating platform, so that the whole pressurizing device is limited, and the possibility of lateral movement of the pressurizing device in the operating process is reduced.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a battery charge-discharge circulation anchor clamps pressure device, includes base (1), its characterized in that, be equipped with a plurality of guide posts (2) of vertical on base (1), the upper end of guide post (2) is equipped with same backup pad (3) of taking loading system (5), and simultaneously, same anchor clamps board (4) that supply anchor clamps to place are worn to establish in guide post (2), be provided with a plurality of expanding spring (11) between anchor clamps board (4) and base (1).

2. The battery charge-discharge cycle clamp pressurization device according to claim 1, characterized in that: the pressurizing mechanism (5) comprises a pressurizing rod (52) penetrating through the support plate (3), a pressurizing module (51) and a pressure gauge (53), the pressurizing rod (52) is located below the pressurizing module (51), and the pressure gauge (53) is located at the upper end of the pressurizing module.

3. The battery charge-discharge cycle clamp pressurization device according to claim 2, characterized in that: the lower end of the pressurizing rod (52) is provided with a circular pressure block (521).

4. The battery charge-discharge cycle clamp pressurization device according to claim 1, characterized in that: a supporting table (6) is arranged below the base (1), a fixing bolt (61) penetrates through the base (1) from top to bottom, and the fixing bolt (61) is in threaded connection with the supporting table (6).

5. The battery charge-discharge cycle clamp pressurization device according to claim 4, characterized in that: and L-shaped limiting plates (7) are arranged on two symmetrical side surfaces of the supporting platform (6).

6. The battery charge-discharge cycle clamp pressurization device according to claim 4, characterized in that: the fixing bolt (61) is provided with a supporting piece (611) below the base (1), and the supporting piece (611) is abutted with the lower surface of the base (1).

7. The battery charge-discharge cycle clamp pressurization device according to claim 1, characterized in that: the number of the guide posts (2) is four, and the guide posts are respectively positioned at four corners of the base (1).

8. The battery charge-discharge cycle clamp pressurization device according to claim 7, characterized in that: the circumferential surface of the guide post (2) is provided with an oil storage seam (21) along the axial direction.

9. The battery charge-discharge cycle clamp pressurization device according to claim 7, characterized in that: and the clamp plate (4) is provided with a sliding bearing (41) sleeved outside the guide column (2).