CN221126114U

CN221126114U - Lithium ion battery with locking structure

Info

Publication number: CN221126114U
Application number: CN202322684066.4U
Authority: CN
Inventors: 李培
Original assignee: Guangdong An Energy Technology Co ltd
Current assignee: Guangdong An Energy Technology Co ltd
Priority date: 2023-10-08
Filing date: 2023-10-08
Publication date: 2024-06-11
Anticipated expiration: 2033-10-08

Abstract

The utility model discloses a lithium ion battery with a locking structure, which comprises a bare cell, a baffle, a pressing plate and a bottom plate, wherein the bare cell is arranged at the upper part of the bottom plate, a protective rubber sleeve is arranged outside the upper end and the lower end of the bare cell, a multi-hole structure is arranged on the protective rubber sleeve, a pole lug is arranged at the upper part of the bare cell, the upper end of the pole lug is provided with the top plate, the pressing plate is arranged at the side part of the bare cell, the side part of the upper end and the lower end of the pressing plate are provided with air bags corresponding to the bare cell, the upper end and the lower end of the pressing plate are provided with sliding rails corresponding to the sliding blocks, the inside of the sliding rails is in sliding connection with the outside of the sliding blocks, the side part of the pressing plate is provided with a bearing plate, and the bearing plate is provided with bolts. The utility model has good safety, can buffer and protect the internal bare cell and is easy to disassemble and overhaul.

Description

Lithium ion battery with locking structure

Technical Field

The utility model relates to the technical field of lithium ions, in particular to a lithium ion battery with a locking structure.

Background

The lithium ion battery is widely applied to portable movable electronic products due to the advantages of portability, high energy density and the like, the soft package lithium ion battery mainly comprises a bare cell, electrolyte and an aluminum plastic film, four vertex angles of the lithium ion battery are most likely to be directly collided by the outside, the bare cell and the aluminum plastic film relatively move inside, and the lithium ion battery with a locking structure has outstanding effect.

The existing lithium ion battery with the locking structure has the defects that firstly, the four top corners of the lithium ion battery are most easily subjected to external direct collision and the bare cell is easy to move, so that the bare cell inside the package is damaged and short-circuited to cause safety problems, the safety is poor, secondly, the lithium ion battery is not provided with a buffer protection structure, after the external collision, the subsequent use is affected, and furthermore, the lithium ion battery is not easy to disassemble and overhaul while being locked inside.

Disclosure of utility model

The utility model aims to provide a lithium ion battery with a locking structure, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a take locking structure's lithium ion battery, includes naked electric core, baffle, clamp plate and bottom plate, naked electric core sets up the upper portion at the bottom plate, the outside of lower extreme is provided with the protection gum cover on the naked electric core, just be provided with porous structure on the protection gum cover, the upper portion of naked electric core is provided with the utmost point ear, just the upper end of utmost point ear is provided with the roof, the clamp plate sets up the lateral part at naked electric core, the lateral part of lower extreme corresponds naked electric core and is provided with the gasbag on the clamp plate, the upper and lower end of clamp plate is provided with the slider, the lower extreme of roof corresponds the slider with the upper end of bottom plate and is provided with the slide rail, and the inside of slide rail and the outside sliding connection of slider.

Preferably, the lateral part of clamp plate is provided with the loading board, just the loading board is provided with the bolt, and has the bolt and the inside screw thread cooperation of clamp plate.

Preferably, the bearing plate is connected with a spring, and the baffle is connected to one end of the spring.

Preferably, a connecting rod is arranged in the middle of the spring, and one end of the connecting rod is fixed at the side part of the pressing plate.

Preferably, a nut is arranged on the side part of the baffle plate, and the nut is in threaded fit with one end of the connecting rod.

Preferably, the bearing plate is fixed with a limiting plate, and the limiting plate is in sliding connection with the baffle.

Preferably, a connecting plate is connected between the bottom plate and the top plate, a sliding strip is arranged on the connecting plate corresponding to the limiting plate, and the sliding strip is in sliding connection with the inside of the limiting plate.

Preferably, the upper and lower ends of the baffle are fixed with cutting bars, and the cutting bars are respectively in sliding connection with the interiors of the upper and lower ends of the bottom plate and the top plate.

Compared with the prior art, the utility model has the beneficial effects that: the safety is good, the internal bare cell can be protected in a buffering way, and the disassembly and the overhaul are easy;

(1) The protection gum cover can carry out the pyrocondensation after high temperature thermocompression becomes, and the gasbag does not take place deformation when the pyrocondensation, keeps good elasticity, and naked electric core is firmly wrapped up by the protection gum cover, and the gasbag structure of four apex angles can play the cushioning effect when lithium ion battery falls, improves the performance of falling, and planar regional porous structure can store electrolyte, can promote the infiltration of electrolyte and improve lithium ion battery's circulation, and the security is good.

(2) When the baffle is impacted, the spring is extruded and contracted, and simultaneously, due to elasticity, elasticity is generated, a buffer protection effect is formed on the pressing plate and the bare cell, the connecting rod can avoid translocation when the spring stretches out and draws back, when the outside of the lithium battery is impacted, the sliding block moves on the sliding rail, the buffer protection of the spring is matched, impact is weakened, and the inside bare cell can be buffer protected.

(3) The limiting plate ensures that the baffle can not be misplaced when moving, the slide bar improves the connection stability among the baffle, the limiting plate and the connecting plate, the cutting slides in the bottom plate and the top plate, the upper end and the lower end of the outside of the bare cell are firmly structured and are not easy to deform, the bolt is used for locking the inside, the pressing plate is connected with the bearing plate and is stable to maintain, the nut is easy to detach, the connecting rod is connected between the bearing plate and the baffle, the disassembly is easy, and the maintenance can be easily carried out on the inside of the lithium battery.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 2 is a schematic diagram of a front view structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 1B according to the present utility model;

FIG. 5 is a schematic view of a spring and retainer plate structure of the present utility model;

In the figure: 1. protecting the rubber sleeve; 2. a slide rail; 3. a porous structure; 4. a tab; 5. a top plate; 6. cutting; 7. a bottom plate; 8. a limiting plate; 9. a bare cell; 10. a pressing plate; 11. a baffle; 12. a connecting plate; 13. a slide block; 14. an air bag; 15. a nut; 16. a connecting rod; 17. a slide bar; 18. a bolt; 19. a carrying plate; 20. and (3) a spring.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, an embodiment of the present utility model is provided: the lithium ion battery with the locking structure comprises a bare cell 9, a baffle 11, a pressing plate 10 and a bottom plate 7, wherein the bare cell 9 is arranged on the upper part of the bottom plate 7, a protective rubber sleeve 1 is arranged outside the upper end and the lower end of the bare cell 9, a porous structure 3 is arranged on the protective rubber sleeve 1, a tab 4 is arranged on the upper part of the bare cell 9, a top plate 5 is arranged at the upper end of the tab 4, the pressing plate 10 is arranged on the side part of the bare cell 9, and an air bag 14 is arranged on the side part of the upper end and the lower end of the pressing plate 10 corresponding to the bare cell 9;

When the lithium ion battery protection rubber sleeve is used, the protection rubber sleeve 1 is subjected to high-temperature thermocompression formation and then subjected to thermal shrinkage, the air bags 14 are not deformed during thermal shrinkage, good elasticity is kept, the bare cell 9 is firmly wrapped by the protection rubber sleeve 1, the air bags 14 with four vertex angles can play a role in buffering when the lithium ion battery falls, the falling performance is improved, the electrolyte can be stored in the porous structure 3 in the plane area, the wettability of the electrolyte can be improved, and the circulation of the lithium ion battery is improved;

The upper end and the lower end of the pressing plate 10 are provided with sliding blocks 13, the lower end of the top plate 5 and the upper end of the bottom plate 7 are provided with sliding rails 2 corresponding to the sliding blocks 13, and the inner parts of the sliding rails 2 are in sliding connection with the outer parts of the sliding blocks 13;

When the lithium battery is impacted outside, the sliding block 13 moves on the sliding rail 2, and the impact is weakened by matching with the buffer protection of the spring 20;

the side part of the pressing plate 10 is provided with a bearing plate 19, the bearing plate 19 is provided with a bolt 18, and the bolt 18 is matched with the internal thread of the pressing plate 10;

When in use, the bolt 18 enables the pressing plate 10 to be connected with the bearing plate 19, so that the pressing plate is stable and easy to detach;

The bearing plate 19 is connected with a spring 20, the baffle 11 is connected with one end of the spring 20, a connecting rod 16 is arranged in the middle of the spring 20, and one end of the connecting rod 16 is fixed on the side part of the pressing plate 10;

When the buffer board 11 is in use, when the buffer board 11 is impacted, the spring 20 is extruded and contracted, and meanwhile, due to elasticity, elasticity is generated, the buffer protection effect is formed on the pressing board 10 and the bare cell 9, and the connecting rod 16 can avoid translocation when the spring 20 stretches and contracts;

the side part of the baffle 11 is provided with a nut 15, the nut 15 is in threaded fit with one end of a connecting rod 16, a limiting plate 8 is fixed on a bearing plate 19, and the limiting plate 8 is in sliding connection with the baffle 11;

when the lithium battery is used, the nut 15 enables the connecting rod 16 to be connected between the bearing plate 19 and the baffle 11, so that the lithium battery is easy to detach and can be overhauled;

A connecting plate 12 is connected between the bottom plate 7 and the top plate 5, a sliding strip 17 is arranged on the connecting plate 12 corresponding to the limiting plate 8, and the sliding strip 17 is in sliding connection with the inside of the limiting plate 8;

when the baffle plate is used, the baffle plate 11 is prevented from dislocation when moving by the limiting plate 8, and the slide bar 17 improves the connection stability among the baffle plate 11, the limiting plate 8 and the connecting plate 12;

The upper and lower ends of the baffle 11 are fixed with cutting 6, and the cutting 6 is respectively connected with the inner parts of the upper and lower ends of the bottom plate 7 and the top plate 5 in a sliding way;

When the device is used, the cutting 6 slides in the bottom plate 7 and the top plate 5, so that the upper end and the lower end of the outside of the bare cell 9 are firmly structured, are not easy to deform and are locked inside;

When the embodiment of the application is used, the following steps are adopted: firstly, the protective rubber sleeve 1 is subjected to thermal shrinkage after being subjected to high-temperature thermal compression, the air bags 14 are not deformed during thermal shrinkage, good elasticity is kept, the bare cell 9 is firmly wrapped by the protective rubber sleeve 1, the air bags 14 with four vertex angles can play a role in buffering when the lithium ion battery falls, the falling performance is improved, the porous structure 3 in the plane area can store electrolyte, the wettability of the electrolyte can be improved, the circulation of the lithium ion battery is improved, meanwhile, the baffle 11 is extruded and contracted, meanwhile, due to elasticity, elasticity is generated, the buffer protection effect is formed on the pressing plate 10 and the bare cell 9, the connecting rod 16 can avoid translocation when the spring 20 stretches, and when the outside of the lithium ion battery is impacted, the slider 13 moves on the slide rail 2, the buffer protection of the spring 20 is matched, impact is weakened, in addition, the bolt 18 enables the pressing plate 10 to be connected with the bearing plate 19, the connection is stable, the disassembly is easy, the nut 15 enables the connecting rod 16 to be connected between the bearing plate 19 and the baffle 11, the disassembly is easy, the maintenance can be performed on the interior of a lithium battery, in addition, the baffle 11 is prevented from being misplaced when moving by the limiting plate 8, the connection stability among the baffle 11, the limiting plate 8 and the connecting plate 12 is improved by the sliding strip 17, the cutting 6 slides in the bottom plate 7 and the top plate 5, the firm structure of the upper end and the lower end of the exterior of the bare cell 9 is guaranteed, the battery is not easy to deform, the battery safety is good, the internal bare cell can be buffer protected, and the maintenance is easy to disassemble.

Claims

1. A lithium ion battery with a locking structure is characterized in that: including naked electric core (9), baffle (11), clamp plate (10) and bottom plate (7), naked electric core (9) set up the upper portion at bottom plate (7), the outside of naked electric core (9) upper and lower ends is provided with protection gum cover (1), just be provided with porous structure (3) on protection gum cover (1), the upper portion of naked electric core (9) is provided with utmost point ear (4), just the upper end of utmost point ear (4) is provided with roof (5), clamp plate (10) set up the lateral part at naked electric core (9), the lateral part of clamp plate (10) upper and lower extreme corresponds naked electric core (9) and is provided with gasbag (14), the upper and lower end of clamp plate (10) is provided with slider (13), the lower extreme of roof (5) is provided with slide rail (2) with slider (13) corresponding to the upper end of bottom plate (7), and the inside of slide rail (2) and the outside sliding connection of slider (13).

2. The lithium ion battery with locking structure according to claim 1, wherein: the lateral part of clamp plate (10) is provided with loading board (19), and loading board (19) are provided with bolt (18), and have bolt (18) and the inside screw-thread fit of clamp plate (10).

3. The lithium ion battery with locking structure according to claim 2, wherein: the bearing plate (19) is connected with a spring (20), and the baffle plate (11) is connected to one end of the spring (20).

4. A lithium ion battery with locking structure according to claim 3, wherein: a connecting rod (16) is arranged in the middle of the spring (20), and one end of the connecting rod (16) is fixed on the side part of the pressing plate (10).

5. A lithium ion battery with locking structure according to claim 3, wherein: the side part of the baffle plate (11) is provided with a nut (15), and the nut (15) is in threaded fit with one end of the connecting rod (16).

6. A lithium ion battery with locking structure according to claim 3, wherein: the bearing plate (19) is fixedly provided with a limiting plate (8), and the limiting plate (8) is in sliding connection with the baffle (11).

7. The lithium ion battery with locking structure according to claim 1, wherein: connecting plates (12) are connected between the bottom plates (7) and the top plates (5), sliding strips (17) are arranged on the connecting plates (12) corresponding to the limiting plates (8), and the sliding strips (17) are in sliding connection with the inner parts of the limiting plates (8).

8. The lithium ion battery with locking structure according to claim 6, wherein: the upper and lower ends of the baffle plate (11) are fixed with cutting bars (6), and the cutting bars (6) are respectively connected with the bottom plate (7) and the inner parts of the upper and lower ends of the top plate (5) in a sliding manner.