CN212659601U

CN212659601U - Lithium ion battery cover plate assembly with good sealing effect

Info

Publication number: CN212659601U
Application number: CN202021493756.1U
Authority: CN
Inventors: 王志勇
Original assignee: Yangzhou Qianyu Electric Co ltd
Current assignee: Yangzhou Qianyu Electric Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-03-05
Anticipated expiration: 2030-07-23

Abstract

The utility model provides a sealed effectual lithium ion battery apron subassembly, which comprises an apron, first recess has all been seted up to the both sides of apron bottom, the second recess has been seted up to the both sides of first recess, the inner chamber of second recess is provided with latch mechanism, the bottom joint of apron has the insulation board, logical groove has all been seted up to the both sides at apron top. The utility model discloses a sealing washer, the seal groove, the cooperation of joint compound and sealed pad, the sealed effect of anodal post and negative pole post and apron has been improved, the sealed effect of anodal post and negative pole post and insulation board has been improved simultaneously, cooperation through latch mechanism, convenient to use person carries out the joint with the movable block and the fixture block is fixed, thereby it is fixed to carry out the chucking with insulation board and apron, the sealed effect of insulation board and apron has been improved, cooperation through the chucking mechanism, convenient to use person carries out the joint with fixed plate and apron and fixes, the sealed effect of fixed plate and apron has been improved.

Description

Lithium ion battery cover plate assembly with good sealing effect

Technical Field

The utility model relates to a lithium ion battery field especially relates to a sealed effectual lithium ion battery apron subassembly.

Background

A lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. In the process of charging and discharging, Li + is inserted and extracted back and forth between the two electrodes, and during charging, Li + is extracted from the positive electrode and inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; when discharging, the lithium batteries are divided into lithium batteries and lithium ion batteries, and the lithium batteries used in mobile phones and notebook computers are lithium ion batteries, generally called lithium batteries, and the batteries generally adopt materials containing lithium elements as electrodes, which are representative of modern high-performance batteries.

Lithium ion battery need be used to the battery cover plate subassembly when the installation, however the sealed effect of traditional lithium ion battery cover plate subassembly is poor to lead to battery apron poor with the overall connectivity of anodal post and negative pole post, and then lead to the battery weeping, still can lead to anodal post and negative pole post to take place the skew simultaneously, thereby lead to the unable normal work of battery, and then lead to the unable normal use to lithium ion battery of user.

Therefore, it is necessary to provide a lithium ion battery cover plate assembly with good sealing effect to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sealed effectual lithium ion battery apron subassembly has solved the poor problem of traditional lithium ion battery apron subassembly sealed effect.

In order to solve the technical problems, the utility model provides a lithium ion battery cover plate assembly with good sealing effect, which comprises a cover plate, wherein first grooves are respectively arranged on two sides of the bottom of the cover plate, second grooves are arranged on two sides of the first grooves, the inner cavity of the second groove is provided with a clamping mechanism, an insulating plate is clamped at the bottom of the cover plate, through grooves are respectively arranged on two sides of the top of the cover plate, a positive pole column and a negative pole column are respectively clamped in the inner cavity of the through grooves from left to right, an installation box is sequentially clamped in the top of the cover plate from left to right, the inner cavity of the installation box is provided with a clamping mechanism, a fixed plate is bolted at the top of the installation box, nuts are respectively in threaded connection with the tops of the surfaces of the positive pole column and the negative pole column, a gasket is movably connected with the bottom of the nuts, the bottom of the gasket is movably connected with the tops, the top of apron has all seted up the third recess in proper order from a left side to the right side, and the fourth recess has all been seted up to the both sides of third recess, the inner chamber of fourth recess and chucking mechanism's both sides joint, the surface of anodal post and negative pole post all overlaps and is equipped with the sealing washer, the outside of sealing washer and the inner chamber joint that leads to the groove, the seal groove has all been seted up to the both sides at apron top, the bottom packing of seal groove inner chamber has sealed glue, the inboard of sealed glue bonds with the top in the sealing washer outside, the top in seal groove inner chamber bonds there is sealed the pad, the bottom swing joint of the top of sealed pad and fixed.

Preferably, the clamping mechanism comprises a first reset spring, a clamping block and a moving block, the first reset spring is sequentially bolted on one side, away from the first groove, of the inner cavity of the second groove from top to bottom, the clamping block is bolted on one opposite side of the first reset spring, the top and the bottom of the clamping block are slidably connected with the top and the bottom of the second groove, the moving block is bolted on two sides of the top of the insulating plate, clamping grooves are formed in two sides of the moving block, and one opposite side of the clamping block penetrates through the second groove and is clamped with the inner cavity of the clamping grooves.

Preferably, the clamping mechanism comprises a sliding column, a first sliding block, a connecting rod, a first movable block, a second reset spring, a second movable block, a connecting plate and a clamping rod, the two sides of the top of the inner cavity of the installation box are bolted with installation blocks, one opposite sides of the installation blocks are bolted with the sliding column, the installation plate is positioned on one opposite side of the installation blocks, the top of the installation plate is provided with a through hole, the surface of the sliding column is fixedly connected with the inner cavity of the through hole, the surface of the sliding column is sequentially and slidably connected with the connecting rod and the first sliding block from left to right, the first sliding block is positioned on one opposite side of the connecting rod, the bottom of the first sliding block is bolted with a first fixed block, the bottom of the first fixed block is movably connected with the first movable block through a movable shaft, one side of the first movable block far away from the first fixed block is bolted with the second reset spring, one side of the second reset spring far away from the first movable block, one side that second reset spring was kept away from to the second movable block has the second fixed block through loose axle swing joint, and the second fixed block keep away from one side of second movable block and the bottom bolt of mounting panel one side in opposite directions, the outside bolt of connecting rod bottom has the connecting plate, one side bolt that the mounting panel was kept away from to the connecting plate has the kelly, one side that the connecting plate was kept away from to the kelly runs through install bin and third recess in proper order and with the inner chamber joint of fourth recess.

Preferably, the top and the bottom of the inner cavity of the second groove are transversely provided with sliding grooves, the inner cavity of each sliding groove is sequentially connected with second sliding blocks in a sliding mode from left to right, and one opposite sides of the second sliding blocks penetrate through the sliding grooves and are bolted to the top and the bottom of each clamping block.

Preferably, the bottom of the inner cavity of the installation box is transversely provided with a sliding rail, the surface of the sliding rail is sequentially connected with pulleys in a sliding manner from left to right, and the top of each pulley is bolted to the bottom of the clamping rod through a support.

Preferably, the bottom of the moving block is bolted with a limiting block, and a limiting groove matched with the limiting block for use is formed in the center of the top of the first groove.

Preferably, a third return spring is bolted at the center of one side, far away from the clamping rod, of the connecting plate, and one side, far away from the connecting plate, of the third return spring is bolted with one side, far away from the second fixed block, of the mounting plate.

Compared with the prior art, the utility model provides a pair of sealed effectual lithium ion battery apron subassembly has following beneficial effect:

the utility model provides a lithium ion battery cover plate component with good sealing effect,

1. the utility model improves the sealing effect of the positive pole column and the negative pole column and the cover plate through the matching of the sealing ring, the sealing groove, the sealing glue and the sealing gasket, meanwhile, the sealing effect of the positive pole and the negative pole and the insulating plate is improved, the movable block and the clamping block are conveniently clamped and fixed by a user through the matching of the first reset spring, the clamping block and the movable block, thereby clamping and fixing the insulating plate and the cover plate, improving the sealing effect of the insulating plate and the cover plate, through the matching of the sliding column, the first sliding block, the connecting rod, the first movable block, the second reset spring, the second movable block, the connecting plate and the clamping rod, a user can conveniently clamp and fix the fixed plate and the cover plate, the sealing effect of the fixed plate and the cover plate is improved, the sealing effect of the sealing gasket, the positive pole column, the negative pole column, the sealing ring and the sealing glue is improved, thereby improving the sealing effect of the cover plate and solving the problem of poor sealing effect of the traditional lithium ion battery cover plate assembly.

2. The utility model discloses a cooperation through first reset spring, fixture block and movable block, the convenient to use person carries out the joint with the fixture block and fixes, thereby improved the sealed effect of insulation board and apron, through the cooperation of traveller, first slider, the connecting rod, first movable block, the second reset spring, the second movable block, connecting plate and kelly, the convenient to use person carries out the joint with fixed plate and apron and fixes, improved the leakproofness of sealed pad and positive post, the negative pole post, sealing washer and sealed glue, through the cooperation of spout and second slider, the convenient to use person carries out spacing to the fixture block, simultaneously, the supplementary fixture block moves, thereby insert the fixture block accuracy in the draw-in groove, through the cooperation of slide rail and pulley, the convenient to use person carries out spacing to the kelly, simultaneously the supplementary kelly moves, thereby insert the kelly accuracy in the fourth recess, through the cooperation of stopper and spacing groove, the fixed effect of insulation board and apron has further been strengthened to further improved the sealed effect of insulation board and apron, through third reset spring's cooperation, improved the resilience effect of fixture block, thereby made the kelly insert fast in the fourth recess.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a lithium ion battery cover plate assembly with a good sealing effect according to the present invention;

fig. 2 is a structural cross-sectional view of a lithium ion battery cover plate assembly with good sealing effect shown in fig. 1;

FIG. 3 is an enlarged view of the structure of region A shown in FIG. 2;

fig. 4 is an enlarged view of a structure of a region B shown in fig. 2.

Reference numbers in the figures: 1. a cover plate; 2. a second groove; 3. a clamping mechanism; 31. a first return spring; 32. a clamping block; 33. a moving block; 4. a chucking mechanism; 41. a traveler; 42. a first slider; 43. a connecting rod; 44. a first movable block; 45. a second return spring; 46. a second movable block; 47. a connecting plate; 48. a clamping rod; 5. an insulating plate; 6. a positive post; 7. a negative pole post; 8. installing a box; 9. a fixing plate; 10. a gasket; 11. mounting a plate; 12. a fourth groove; 13. a chute; 14. a second slider; 15. a slide rail; 16. a pulley; 17. a seal ring; 18. a sealing groove; 19. sealing glue; 20. a gasket; 21. a first groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a lithium ion battery cover plate assembly with a good sealing effect according to the present invention; fig. 2 is a structural cross-sectional view of a lithium ion battery cover plate assembly with good sealing effect shown in fig. 1; FIG. 3 is an enlarged view of the structure of region A shown in FIG. 2; FIG. 4 is an enlarged view of the structure of the area B shown in FIG. 2, and is a lithium ion battery cover plate assembly with good sealing effect, which comprises a cover plate 1, wherein first grooves 21 are respectively formed on two sides of the bottom of the cover plate 1, second grooves 2 are respectively formed on two sides of the first grooves 21, clamping mechanisms 3 are arranged in inner cavities of the second grooves 2, an insulating plate 5 is clamped at the bottom of the cover plate 1, through grooves are respectively formed on two sides of the top of the cover plate 1, the inner cavities of the through grooves are respectively clamped with a positive pole 6 and a negative pole 7 from left to right, an installation box 8 is sequentially clamped at the top of the cover plate 1 from left to right, a clamping mechanism 4 is arranged in an inner cavity of the installation box 8, a fixing plate 9 is bolted at the top of the installation box 8, nuts are respectively screwed on the tops of the surfaces of the positive pole 6 and the negative pole 7, a gasket 10 is movably connected to the bottom of the, the equal bolt in both sides at 8 inner chambers tops of install bin has mounting panel 11, the third recess has all been seted up in proper order from a left side to the right side in the top of apron 1, and the fourth recess 12 has all been seted up to the both sides of third recess, the inner chamber of fourth recess 12 and the both sides joint of chucking mechanism 4, positive post 6 and negative pole post 7's surface all overlaps and is equipped with sealing washer 17, the outside and the inner chamber joint that leads to the groove of sealing washer 17, seal groove 18 has all been seted up to the both sides at apron 1 top, the bottom packing of the 18 inner chambers of seal groove has sealed 19, the inboard of sealed 19 bonds with the top in the sealing washer 17 outside, the top of the 18 inner chambers of seal groove bonds has sealed the pad 20, the bottom swing joint of the top of sealed pad.

The clamping mechanism 3 comprises a first return spring 31, a clamping block 32 and a moving block 33, the first return spring 31 is sequentially bolted on one side, away from the first groove 21, of the inner cavity of the second groove 2 from top to bottom, the clamping block 32 is bolted on one side, opposite to the first return spring 31, of the inner cavity of the second groove, the top and the bottom of the clamping block 32 are slidably connected with the top and the bottom of the second groove 2, the moving block 33 is bolted on two sides of the top of the insulating plate 5, clamping grooves are formed in two sides of the moving block 33, one side, opposite to the clamping block 32, of the clamping block 32 penetrates through the second groove 2 and is clamped with the inner cavity of the clamping grooves, and through cooperation of the first return spring 31, the clamping block 32 and the moving block 33, a user can conveniently clamp and fix the moving block 33 and the clamping block 32.

The clamping mechanism 4 comprises a sliding column 41, a first sliding block 42, a connecting rod 43, a first movable block 44, a second reset spring 45, a second movable block 46, a connecting plate 47 and a clamping rod 48, wherein mounting blocks are bolted on two sides of the top of an inner cavity of the mounting box 8, the sliding column 41 is bolted on one side of the mounting blocks in opposite directions, the mounting plate 11 is positioned on one side of the mounting blocks in opposite directions, a through hole is formed in the top of the mounting plate 11, the surface of the sliding column 41 is fixedly connected with the inner cavity of the through hole, the surface of the sliding column 41 is sequentially connected with the connecting rod 43 and the first sliding block 42 in a sliding mode from left to right, the first sliding block 42 is positioned on one side of the connecting rod 43 in opposite directions, the bottom of the first sliding block 42 is bolted with a first fixed block, the bottom of the first fixed block is movably connected with the first movable block 44 through a movable shaft, one side of the first movable block 44 far away, one side bolt that first movable block 44 was kept away from to second reset spring 45 has second movable block 46, one side that second reset spring 45 was kept away from to second movable block 46 has the second fixed block through loose axle swing joint, and the second fixed block keeps away from second movable block 46 one side and the bottom bolt of the opposite one side of mounting panel 11, the outside bolt of connecting rod 43 bottom has connecting plate 47, one side bolt that mounting panel 11 was kept away from to connecting plate 47 has kelly 48, one side that connecting plate 47 was kept away from to kelly 48 runs through install bin 8 and third recess in proper order and with the inner chamber joint of fourth recess 12, through traveller 41, first slider 42, connecting rod 43, first movable block 44, second reset spring 45, second movable block 46, connecting plate 47 and kelly 48's cooperation, the user of being convenient for carries out the joint with fixed plate 9 and apron 1 and fixes, has improved sealed 20 with positive post 6, Tightness of the negative pole 7, the seal ring 17 and the sealant 19.

The top and the bottom of the inner cavity of the second groove 2 are transversely provided with sliding grooves 13, the inner cavity of each sliding groove 13 is sequentially connected with a second sliding block 14 in a sliding mode from left to right, one opposite side of each second sliding block 14 penetrates through the corresponding sliding groove 13 and is in bolted connection with the top and the bottom of each clamping block 32, through the matching of the corresponding sliding grooves 13 and the corresponding second sliding blocks 14, a user can conveniently limit the clamping blocks 32, and meanwhile the clamping blocks 32 are assisted to move, so that the clamping blocks 32 are accurately inserted into the clamping grooves.

Slide rail 15 has transversely been seted up to the bottom of 8 inner chambers of install bin, and the surface of slide rail 15 said all has pulley 16 from a left side to the right side sliding connection in proper order, the top of pulley 16 is passed through the support and is bolted with the bottom of kelly 48, and through slide rail 15 and pulley 16's cooperation, convenient to use person carries on spacingly to kelly 48, and supplementary kelly 48 removes simultaneously to in inserting fourth recess 12 with kelly 48 accuracy.

The bottom of the moving block 33 is bolted with a limiting block, the center of the top of the first groove 21 is provided with a limiting groove matched with the limiting block, and the fixing effect of the insulating plate 5 and the cover plate 1 is further enhanced through the matching of the limiting block and the limiting groove, so that the sealing effect of the insulating plate 5 and the cover plate 1 is further improved.

The central point department bolt that connecting plate 47 is far away from kelly 48 one side has third reset spring, and the one side bolt that second fixed block was kept away from with mounting panel 11 to one side that connecting plate 47 was kept away from to third reset spring has improved fixture block 32's resilience effect through third reset spring's cooperation to make kelly 48 insert in the fourth recess 12 fast.

The utility model provides a pair of sealed effectual lithium ion battery apron subassembly's theory of operation as follows:

when the device is used, a user sleeves the sealing ring 17 on the surfaces of the positive pole 6 and the negative pole 7, then inserts the positive pole 6 and the negative pole 7 into the through groove, so that the sealing ring 17 is clamped with the through groove, then the user injects the sealant 19 into the sealing groove 18, at the same time, the user covers the sealing gasket 20 in the inner cavity of the sealing groove 18, then the user takes up the fixing plate 9, aligns the mounting box 8 with the third groove, the clamping rod 48 drives the connecting plate 47 to move towards each other, at the same time, the connecting plate 47 extrudes the third return spring, meanwhile, the connecting plate 47 drives the connecting rod 43 to move towards each other, so as to drive the first sliding block 42 to move towards each other, then the first sliding block 42 drives the first movable column to move towards the right, at the same time, the first movable column stretches the second return spring 45, then the mounting box 8 descends to the bottom of the third groove, at the, thereby drive kelly 48 and remove to the outside of install bin 8, and then insert in fourth recess 12, the user drives gasket 10 through the nut afterwards and compresses tightly fixed plate 9, thereby improve the sealed effect of battery apron 1, the user removes the top of insulation board 5 with apron 1 afterwards, movable block 33 removes to the inner chamber of first recess 21 this moment, thereby drive fixture block 32 and remove to the inner chamber of second recess 2, fixture block 32 extrudees first reset spring 31 this moment, the bottom of first recess 21 is gone up to movable block 33 afterwards, resilience through the elasticity of first reset spring 31, drive fixture block 32 and remove in opposite directions, thereby drive fixture block 32 and insert in the draw-in groove fast.

the utility model discloses a sealing washer 17, seal groove 18, sealed 19 cooperation of gluing and sealed 20 of filling up, the sealed effect of anodal post 6 and negative pole post 7 and apron 1 has been improved, the sealed effect of anodal post 6 and negative pole post 7 and insulation board 5 has been improved simultaneously, through first reset spring 31, the cooperation of fixture block 32 and movable block 33, the person of facilitating the use carries out the joint with fixture block 33 and is fixed, thereby carry out the chucking with insulation board 5 and apron 1 and fix, the sealed effect of insulation board 5 and apron 1 has been improved, through traveller 41, first slider 42, connecting rod 43, first movable block 44, second reset spring 45, second movable block 46, the cooperation of connecting plate 47 and kelly 48, the person of facilitating the use carries out the joint with fixed plate 9 and apron 1 and fixes, the sealed effect of fixed plate 9 and apron 1 has been improved, sealed 20 of sealed pad and anodal post 6, the sealed effect of sealed pad 20 and, The sealing effect of the negative pole post 7, the sealing ring 17 and the sealant 19 is improved, so that the sealing effect of the cover plate 1 is improved, and the problem of poor sealing effect of the traditional lithium ion battery cover plate assembly is solved.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a sealed effectual lithium ion battery apron subassembly, includes apron (1), its characterized in that: the improved structure of the battery cover plate is characterized in that first grooves (21) are respectively formed in two sides of the bottom of the cover plate (1), second grooves (2) are respectively formed in two sides of each first groove (21), a clamping mechanism (3) is arranged in an inner cavity of each second groove (2), an insulating plate (5) is clamped at the bottom of the cover plate (1), through grooves are respectively formed in two sides of the top of the cover plate (1), positive posts (6) and negative posts (7) are respectively clamped in the inner cavities of the through grooves from left to right, an installation box (8) is sequentially clamped at the top of the cover plate (1) from left to right, a clamping mechanism (4) is arranged in the inner cavity of the installation box (8), a fixed plate (9) is bolted at the top of the installation box (8), nuts are respectively in threaded connection with the top of the surfaces of the positive posts (6) and the negative posts (7), gaskets (10) are movably connected at the bottoms of the nuts, and the gaskets, mounting plates (11) are bolted on two sides of the top of the inner cavity of the mounting box (8), third grooves are sequentially formed in the top of the cover plate (1) from left to right, and both sides of the third groove are provided with fourth grooves (12), the inner cavity of the fourth grooves (12) is clamped with both sides of the clamping mechanism (4), the surfaces of the positive pole post (6) and the negative pole post (7) are sleeved with sealing rings (17), the outer side of the sealing ring (17) is clamped with the inner cavity of the through groove, two sides of the top of the cover plate (1) are respectively provided with a sealing groove (18), the bottom of the inner cavity of the sealing groove (18) is filled with a sealing glue (19), the inner side of the sealing glue (19) is adhered with the top of the outer side of the sealing ring (17), the top of seal groove (18) inner chamber bonds and has sealed the pad (20), the bottom swing joint of the top of sealed pad (20) and fixed plate (9).

2. The lithium ion battery cover plate assembly with the good sealing effect according to claim 1, wherein the clamping mechanism (3) comprises a first return spring (31), a clamping block (32) and a moving block (33), the first return spring (31) is sequentially bolted on one side, away from the first groove (21), of the inner cavity of the second groove (2) from top to bottom, the clamping block (32) is bolted on the opposite side of the first return spring (31), the top and the bottom of the clamping block (32) are slidably connected with the top and the bottom of the second groove (2), the moving block (33) is bolted on two sides of the top of the insulating plate (5), clamping grooves are formed on two sides of the moving block (33), and the opposite side of the clamping block (32) penetrates through the second groove (2) and is clamped with the inner cavity of the clamping groove.

3. The lithium ion battery cover plate assembly with good sealing effect according to claim 1, wherein the clamping mechanism (4) comprises a sliding column (41), a first sliding block (42), a connecting rod (43), a first movable block (44), a second return spring (45), a second movable block (46), a connecting plate (47) and a clamping rod (48), mounting blocks are bolted on two sides of the top of the inner cavity of the mounting box (8), the sliding column (41) is bolted on one side of the mounting blocks opposite to each other, the mounting plate (11) is positioned on one side of the mounting blocks opposite to each other, a through hole is formed in the top of the mounting plate (11), the surface of the sliding column (41) is fixedly connected with the inner cavity of the through hole, the surface of the sliding column (41) is sequentially connected with the connecting rod (43) and the first sliding block (42) in a sliding manner from left to right, the first sliding block (42) is positioned on one side of the connecting rod (43) opposite to, the bottom bolt of first slider (42) has first fixed block, and the bottom of first fixed block has first movable block (44) through loose axle swing joint, one side bolt joint that first fixed block was kept away from in first movable block (44) has second reset spring (45), one side bolt joint that first movable block (44) was kept away from in second reset spring (45) has second movable block (46), one side that second reset spring (45) were kept away from in second movable block (46) has the second fixed block through loose axle swing joint, and the second fixed block keeps away from one side of second movable block (46) and the bottom bolt of one side in opposite directions of mounting panel (11), the outside bolt joint of connecting rod (43) bottom has connecting plate (47), one side bolt joint that mounting panel (11) were kept away from in connecting plate (47) has kelly (48), kelly (48) keep away from one side of connecting plate (47) and run through mounting box (8) and third recess in proper order and with the interior of fourth recess (12) The cavity is clamped.

4. The lithium ion battery cover plate assembly with the good sealing effect according to claim 1, wherein sliding grooves (13) are transversely formed in the top and the bottom of an inner cavity of the second groove (2), second sliding blocks (14) are sequentially connected to the inner cavity of the sliding grooves (13) in a sliding mode from left to right, and one opposite sides of the second sliding blocks (14) penetrate through the sliding grooves (13) and are bolted to the left sides of the top and the bottom of the clamping blocks (32).

5. The lithium ion battery cover plate assembly with good sealing effect according to claim 1, wherein a sliding rail (15) is transversely arranged at the bottom of the inner cavity of the installation box (8), pulleys (16) are sequentially connected to the surface of the sliding rail (15) in a sliding manner from left to right, and the top of each pulley (16) is bolted to the bottom of a clamping rod (48) through a support.

6. The lithium ion battery cover plate assembly with good sealing effect according to claim 2, wherein a limiting block is bolted to the bottom of the moving block (33), and a limiting groove matched with the limiting block for use is formed in the center of the top of the first groove (21).

7. The lithium ion battery cover plate assembly with good sealing effect according to claim 3, wherein a third return spring is bolted at the center of one side of the connecting plate (47) far away from the clamping rod (48), and one side of the third return spring far away from the connecting plate (47) is bolted with one side of the mounting plate (11) far away from the second fixed block.