CN216288573U

CN216288573U - Be applied to 4500 MAH's large-scale soft packet of lithium cell

Info

Publication number: CN216288573U
Application number: CN202122875562.9U
Authority: CN
Inventors: 李彬; 余丰; 杜寿君
Original assignee: Zhongshan Duobeijia Electronic Technology Co ltd
Current assignee: Zhongshan Duobeijia Electronic Technology Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-04-12
Anticipated expiration: 2031-11-23

Abstract

The utility model relates to the technical field of lithium battery cells and discloses a large soft package lithium battery cell applied to MAH (maleic anhydride bonding), which comprises a main body, wherein the top of the main body is sleeved with a top protection plate, the bottom of the main body is sleeved with a bottom protection plate, the top protection plate is connected with the bottom protection plate through a connecting rod, the left side and the right side of the top protection plate and the left side and the right side of the bottom protection plate are fixedly connected with side connecting plates, one side of each side connecting plate, far away from the main body, is fixedly connected with a side clamping plate, and one side of each side connecting plate, far away from the main body, is provided with a side clamping groove. This kind of be applied to 4500 MAH's large-scale soft packet of lithium cell, through the main part, the top backplate, end backplate, the connecting rod, the side cardboard, the side draw-in groove, main even board, main cardboard, main draw-in groove and the side even mutually support between the board, it changes to the single soft packet of lithium cell in the lithium cell in groups to have reached being convenient for, and avoid the damaged effect of soft packet of lithium cell surrounding layer, it changes the difficulty to have solved the soft packet of lithium cell in the lithium cell after taking place to damage, easily cause the damaged problem of lithium cell outer packaging layer during the change.

Description

Be applied to 4500 MAH's large-scale soft packet of lithium cell

Technical Field

The utility model relates to the technical field of lithium battery cells, in particular to a large soft package lithium battery cell applied to 4500 MAH.

Background

The soft package lithium cell sheathes one deck polymer shell in liquid lithium ion battery, structurally adopts the plastic-aluminum membrane packing, and soft package battery can only blow open under the condition that takes place the potential safety hazard, and can not blast.

Because the volume of the soft package lithium battery cell of forty-five hundred milliamperes is large, when a plurality of soft package lithium battery cells of the type are used in a group, all the soft package lithium battery cells need to be bound by using double-sided adhesive tapes or transparent adhesive tapes so as to prevent the soft package lithium battery cells from breaking due to random collision during use, however, when the lithium battery assembled by a plurality of soft package lithium battery cells and a protection plate fails after being used for a period of time, a few lithium battery cells are found to be damaged through inspection, at the moment, if the lithium battery is required to be normally used, the damaged soft package lithium battery cells need to be replaced, but the aluminum-plastic film packaging layer on the outermost layer of the soft package lithium battery cells is thin, in the disassembly process, due to the binding of the double-sided adhesive tapes and the adhesive tapes, when the adhesive tapes are removed, the soft package lithium battery cells are extremely easy to tear together with the aluminum-plastic film packaging layer, so that electrolyte leaks, when the soft package cells are damaged, the maintenance is comparatively difficult, very easily causes extra soft packet of lithium cell damaged, so need develop a soft packet of lithium cell of being convenient for tear open in groups and trade to satisfy corresponding maintenance demand.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a large soft-package lithium battery cell applied to 4500MAH, which has the advantages of facilitating the replacement of a single soft-package lithium battery cell in a group of lithium battery cells and avoiding the damage of an outer wrapping layer of the soft-package lithium battery cell, and solves the problems that the soft-package lithium battery cell in the lithium battery cell is difficult to replace after being damaged and the outer wrapping layer of the lithium battery cell is easy to damage during replacement.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a be applied to 4500 MAH's large-scale soft packet of lithium cell, comprises a main body, the top of main part is cup jointed a backplate, the bottom backplate is cup jointed to the bottom of main part, it is connected with the backplate at the bottom through the connecting rod to push up the backplate, the left and right sides of top backplate and the equal fixedly connected with side of the left and right sides of backplate at the bottom link the board, the side links the board and keeps away from one side fixedly connected with side cardboard of main part, the side links the board and keeps away from one side of main part and has seted up the side draw-in groove, the equal fixedly connected with owner in both sides links the board around the backplate of pushing up, the main board that links one side fixedly connected with main cardboard of keeping away from the main part of board, the main one side of keeping away from the main part of linking the board has seted up the main draw-in groove.

Preferably, the front side and the rear side of the top guard plate and the front side and the rear side of the bottom guard plate are fixedly connected with fixing rods, communicating holes are formed in the fixing rods, the connecting rods are located inside the communicating holes, the fixing rods are in threaded connection with locking screws, one ends, close to the main body, of the locking screws are abutted to the side surfaces of the connecting rods, the top guard plate and the bottom guard plate are connected into a whole through the connecting rods, and therefore the main body is fixed in a protection structure formed by the top guard plate, the bottom guard plate and the connecting rods, and the main body is prevented from directly colliding.

Preferably, both sides all are provided with the conducting strip around the main part, one side that the main part was kept away from to the conducting strip supports with one side that main even board is close to the main part and holds, and the conducting strip can assist the lithium cell to dispel the heat to the heat dispersion of reinforcing lithium cell.

Preferably, the top of the heat conducting fin is connected with a heat conducting wire plate, so that heat on the heat conducting fin can be better guided out to the outside, and the heat conducting fin is connected with an external forced cooling device, so that the heat conducting fin can be rapidly cooled.

Preferably, the side of top backplate, the side of end backplate and the inside of main even board all set up threaded hole, the inside threaded connection of screw hole has connecting screw, and main upper and lower both ends of even board are connected with top backplate and end backplate through different connecting screw to the wholeness of top backplate and end backplate has been strengthened, main protective structure's intensity has been strengthened.

Preferably, the top of main part is provided with negative pole ear and positive pole ear, first sheath and second sheath have been seted up at the top of top backplate, the inside of first sheath and the inside of second sheath all communicate with the inside of top backplate, negative pole ear is located the inside of first sheath, positive pole ear is located the inside of second sheath, and first sheath and second sheath have played the effect of protecting negative pole ear and positive pole ear respectively, avoid negative pole ear and positive pole ear to take place to bend, prevent that the connection of utmost point ear and main part from taking place the damage because of the utmost point ear is bent.

Compared with the prior art, the utility model provides a large soft-package lithium battery cell applied to 4500MAH, which has the following beneficial effects:

1. this kind of be applied to 4500 MAH's large-scale soft packet of lithium cell, through the main part, the top backplate, end backplate, the connecting rod, the side cardboard, the side draw-in groove, main even board, main cardboard, main draw-in groove and the side even mutually support between the board, it changes to the single soft packet of lithium cell in the lithium cell in groups to have reached being convenient for, and avoid the damaged effect of soft packet of lithium cell surrounding layer, it changes the difficulty to have solved the soft packet of lithium cell in the lithium cell after taking place to damage, easily cause the damaged problem of lithium cell outer packaging layer during the change.

2. This kind of be applied to 4500 MAH's large-scale soft packet of lithium cell, through main part, top backplate, end backplate, connecting rod, main even board, conducting strip, heat conduction line board and the cooperation each other between the connecting screw, can make the lithium cell dispel the heat fast, avoid the lithium cell high temperature, reached the effect that strengthens lithium cell heat dispersion, solved the lithium cell and caused the lithium cell premature decay because of the high temperature when the operation to lead to the problem of lithium cell capacity decline.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a bottom view of the present invention;

FIG. 3 is an enlarged view of the utility model at A in FIG. 2.

Wherein: 1. a main body; 2. a top guard plate; 3. a bottom guard plate; 4. a connecting rod; 5. fixing the rod; 6. a locking screw; 7. a side clamping plate; 8. a side card slot; 9. a main connecting plate; 10. a main clamping plate; 11. a main card slot; 12. a heat conductive sheet; 13. a heat conducting wire board; 14. a female tab; 15. an anode tab; 16. a first sheath; 17. a second sheath; 18. a side connecting plate; 19. and connecting screws.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a large soft package lithium battery cell applied to 4500MAH comprises a main body 1, the main body 1 is a main structure of a large combustion lithium battery cell with forty-five hundred milliamperes, a top protection plate 2 is sleeved on the top of the main body 1, a cathode ear 14 and an anode ear 15 are arranged on the top of the main body 1, a first sheath 16 and a second sheath 17 are arranged on the top of the top protection plate 2, the inside of the first sheath 16 and the inside of the second sheath 17 are both communicated with the inside of the top protection plate 2, the cathode ear 14 is arranged inside the first sheath 16, the anode ear 15 is arranged inside the second sheath 17, a bottom protection plate 3 is sleeved on the bottom of the main body 1, the top protection plate 2 and the bottom protection plate 3 respectively protect the top, the bottom and four corners of the soft package lithium battery cell to prevent the soft package lithium battery cell from collision and damage, the top protection plate 2 is connected with the bottom protection plate 3 through a connecting rod 4, and fixing rods 5 are fixedly connected to the front and back sides of the top protection plate 2 and back sides and front and back sides of the bottom protection plate 3, each top guard plate 2 and each bottom guard plate 3 are provided with four fixing rods 5, each two fixing rods are in a group, each group is symmetrically distributed by taking the central line of the main body 1 as a symmetry axis, the inside of each fixing rod 5 is provided with a communicating hole, the connecting rod 4 is positioned inside the communicating hole, the inside of each fixing rod 5 is in threaded connection with a locking screw 6, one end of each locking screw 6 close to the main body 1 is abutted against the side surface of the connecting rod 4, the left side and the right side of the top guard plate 2 and the left side and the right side of the bottom guard plate 3 are both fixedly connected with side connecting plates 18, one side of each side connecting plate 18 far away from the main body 1 is fixedly connected with a side clamping plate 7, one side of each side connecting plate 18 far away from the main body 1 is provided with a side clamping groove 8, the shape and the size of each side clamping plate 7 are matched with the shape and the size of the side clamping grooves 8, when adjacent soft package lithium batteries are connected, the side clamping plates 7 on the side surfaces of the two main bodies 1 are clamped with the side clamping grooves 8, so as to connect the left adjacent main bodies 1 and the right into a whole, the front side and the rear side of the top guard plate 2 are fixedly connected with main connecting plates 9.

The side surface of the top guard plate 2, the side surface of the bottom guard plate 3 and the interior of the main connecting plate 9 are respectively provided with a threaded hole, the interior of the threaded hole is in threaded connection with a connecting screw 19, each main body 1 is provided with six main connecting plates 9, each main connecting plate is a group, each group is symmetrically distributed by taking the transverse central line of the main body 1 as a symmetry axis, the front side and the rear side of the main body 1 are respectively provided with a heat conducting fin 12, one side of the heat conducting fin 12 away from the main body 1 is abutted against one side of the main connecting plate 9 close to the main body 1, the top of the heat conducting fin 12 is connected with a heat conducting wire plate 13, the heat conducting wire plate 13 and the heat conducting fin 12 are integrally formed, one side of the main connecting plate 9 away from the main body 1 is fixedly connected with a main clamping plate 10, one side of the main connecting plate 9 away from the main body 1 is provided with a main clamping groove 11, the shape and size of the main clamping plate 10 are matched with the shape and size of the main clamping groove 11, when adjacent soft package lithium battery cores are connected, the main clamping plates 10 on the side surfaces of the two main bodies 1 can be clamped with the main clamping grooves, thereby two adjacent main part 1 connect as an organic wholely around with, through main part 1, top backplate 2, end backplate 3, connecting rod 4, side cardboard 7, side draw-in groove 8, main even board 9, main cardboard 10, mutually supporting between even board 18 of main draw-in groove 11 and side, it changes to the single soft packet of lithium cell in groups to have reached to be convenient for, and avoid the damaged effect of soft packet of lithium cell surrounding layer, it changes the difficulty to have solved soft packet of lithium cell in the lithium cell to take place to damage the back, easily cause the damaged problem of lithium cell outer packaging layer during the change.

When the soft package lithium battery cell is used, the top protection plate 2 and the bottom protection plate 3 are respectively sleeved with the top and the bottom of the main body 1, the top protection plate 2 and the bottom protection plate 3 are connected into a whole through the connecting rod 4 and the locking screw 6, then the main connecting plates 9 are arranged on the front side and the rear side of the main body 1 through the connecting screws 19, then, the adjacent main bodies 1 are connected with the main clamping grooves 11 or the side clamping plates 7 and the side clamping grooves 8 through the main clamping plates 10 or the side clamping plates 7 according to the required grouping mode of the lithium battery cells, the assembly work of the soft package lithium battery cell can be completed only by connecting the protection plate with the grouped lithium battery cells, if part of soft-package lithium battery cells in the lithium battery have faults at the moment, the single soft-package lithium battery cells can be separated from the grouped lithium battery cells only by separating the main clamping plate 10 from the main clamping groove 11 or separating the side clamping plate 7 from the side clamping groove 8, thereby realize the soft packet of lithium cell of quick assembly disassembly to avoid causing the problem that lithium cell surrounding layer damaged when demolising single soft packet of lithium cell.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be applied to 4500 MAH's large-scale soft packet of lithium cell, includes main part (1), its characterized in that: the top of main part (1) cup joints top protection board (2), the bottom of main part (1) cup joints end protection board (3), top protection board (2) pass through connecting rod (4) and are connected with end protection board (3), the equal fixedly connected with side of the left and right sides of top protection board (2) and the equal fixedly connected with side of the left and right sides of end protection board (3) link board (18), one side fixedly connected with side cardboard (7) that main part (1) was kept away from to side link board (18), side draw-in groove (8) have been seted up to one side that main part (1) was kept away from to side link board (18), the equal fixedly connected with owner of both sides links board (9) around top protection board (2), one side fixedly connected with owner cardboard (10) that main part (1) was kept away from to main link board (9), main draw-in groove (11) have been seted up to one side that main part (1) was kept away from to main link board (9).

2. The large-sized soft-packaged lithium battery cell applied to 4500MAH according to claim 1, wherein: the front side and the rear side of the top guard plate (2) and the front side and the rear side of the bottom guard plate (3) are fixedly connected with fixing rods (5), communicating holes are formed in the fixing rods (5), the connecting rod (4) is located in the communicating holes, the inner threads of the fixing rods (5) are connected with locking screws (6), and one ends, close to the main body (1), of the locking screws (6) are abutted to the side surfaces of the connecting rods (4).

3. The large-sized soft-packaged lithium battery cell applied to 4500MAH according to claim 1, wherein: the heat conducting fins (12) are arranged on the front side and the rear side of the main body (1), and one side, far away from the main body (1), of each heat conducting fin (12) is abutted against one side, close to the main body (1), of the main connecting plate (9).

4. The large-sized soft-packaged lithium battery cell applied to 4500MAH according to claim 3, wherein: the top of the heat conducting fin (12) is connected with a heat conducting wire plate (13).

5. The large-sized soft-packaged lithium battery cell applied to 4500MAH according to claim 1, wherein: threaded holes are formed in the side face of the top protection plate (2), the side face of the bottom protection plate (3) and the inside of the main connecting plate (9), and connecting screws (19) are connected with the internal threads of the threaded holes.

6. The large-sized soft-packaged lithium battery cell applied to 4500MAH according to claim 1, wherein: the top of main part (1) is provided with negative pole ear (14) and positive pole ear (15), first sheath (16) and second sheath (17) have been seted up at the top of top backplate (2), the inside of first sheath (16) and the inside of second sheath (17) all communicate with the inside of top backplate (2), negative pole ear (14) are located the inside of first sheath (16), positive pole ear (15) are located the inside of second sheath (17).