CN216435967U

CN216435967U - Lithium battery and packaging and pressing mechanism thereof

Info

Publication number: CN216435967U
Application number: CN202122365470.6U
Authority: CN
Inventors: 黄吉; 贾兴; 吴健鑫; 杨钧钧; 陈杰; 杨山
Original assignee: Huizhou Liwinon Energy Technology Co Ltd
Current assignee: Huizhou Liwinon Energy Technology Co Ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-05-03
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a lithium cell and encapsulation hold-down mechanism thereof, this lithium cell encapsulation hold-down mechanism, include: a support member; the lifting assembly is arranged at the bottom of the supporting piece and comprises a first air cylinder, and an output shaft of the first air cylinder is connected with the bottom of the supporting piece; the rotary pressing assembly comprises a rotary part and a pressing part, the rotary part is arranged on the upper surface of the support part, one end of the pressing part is connected with the rotary part, and the other end of the pressing part is used for rotatably pressing the battery cell; the effectual portion that prevents compresses tightly makes the surface contact with electric core at the rotation, leads to compressing tightly the portion and lacerate electric core surface or beat the head of shallow pit face and produce the pole piece and turn over, and then influence the quality of electric core.

Description

Lithium battery and packaging and pressing mechanism thereof

Technical Field

The utility model relates to a lithium cell top seal technology technical field specifically is a lithium cell and encapsulation hold-down mechanism thereof.

Background

With the development of modern society and the enhancement of environmental awareness, more and more devices select rechargeable secondary batteries as power sources. As an excellent secondary power source, a lithium ion battery has been widely used in mobile phones, notebook computers, electric vehicles, energy storage, and the like, because of its advantages of high energy density, high open circuit voltage, long cycle life, and environmental protection.

When the lithium battery is packaged, the battery cell generally needs to be compressed, the running track of the pressing strip of the existing pressing mechanism is in a parabola type, and when the pressing strip runs to the battery cell, the pressing strip in the motion mode easily scratches an aluminum foil on the surface of the battery cell or hits the head of a shallow pit surface to generate quality hidden troubles such as pole piece folding and the like when contacting with the battery cell.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an one of the purpose lies in: the utility model provides a lithium cell encapsulation hold-down mechanism has solved among the prior art layering and has scratched the technical problem of the aluminium foil on electric core surface easily at the in-process that compresses tightly the battery, has realized reducing the probability that the layering scratched electric core surface aluminium foil when compressing tightly electric core.

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

a lithium battery pack hold-down mechanism, comprising:

a support member;

the lifting assembly is arranged at the bottom of the supporting piece and comprises a first air cylinder, and an output shaft of the first air cylinder is connected with the bottom of the supporting piece;

the rotary compression assembly comprises a rotating part and a compression part, wherein the rotating part is arranged on the upper surface of the support part, one end of the compression part is connected with the rotating part, and the other end of the compression part is used for rotationally compressing the battery cell.

As an improvement of the lithium battery packaging and compressing mechanism of the utility model, the lifting assembly further comprises a bottom plate and a mounting plate;

the mounting panel is provided with at least two, at least two the mounting panel set up respectively in the both ends of bottom plate, support piece set up in the top of mounting panel, first cylinder set up in support piece with between the bottom plate.

As an improvement of the lithium battery packaging and compressing mechanism of the utility model, each mounting plate is provided with a limiting component, and the limiting component comprises a fixed sleeve and a guide rod;

the fixed cover set up in on the mounting panel, the one end of guide bar with support piece's bottom is connected, the other end of guide bar with fixed cover sliding connection.

As an improvement of the lithium battery packaging and compressing mechanism of the present invention, the rotating part includes a second cylinder, a rack, and a gear, and the compressing part includes a supporting seat, a pressing bar, and a rotating shaft;

the second cylinder the supporting seat set up respectively in support piece's both ends, be provided with the mounting hole on the supporting seat, the one end of pivot with the layering is connected, the other end of pivot passes the mounting hole with gear connection, the output shaft of second cylinder with rack connection, the gear with rack toothing.

As an improvement of the lithium battery packaging and compressing mechanism, the support member and the rack are provided with a sliding component therebetween.

As an improvement of the lithium battery packaging and compressing mechanism of the utility model, the sliding component comprises a sliding rail and a sliding block;

the upper surface of the supporting piece is provided with a groove, the sliding rail is arranged in the groove, the rack is arranged on the sliding block, the sliding block is connected with the sliding rail in a sliding mode, and the output shaft of the second cylinder is connected with the sliding block.

As an improvement of the lithium battery packaging and compressing mechanism of the utility model, the supporting seat comprises a fixed plate and a first connecting plate;

one end of the first connecting plate is arranged on the supporting piece, the fixing plate is arranged above the supporting piece and connected with the other end of the first connecting plate, and the mounting hole is formed in the fixing plate.

As a lithium cell package hold-down mechanism's improvement, the supporting seat still includes the second connecting plate, the second connecting plate set up in support piece with between the fixed plate.

Another object of the utility model is to: the lithium battery comprises a battery cell and a packaging film used for packaging the battery cell, wherein the battery cell is applied to the lithium battery packaging and pressing mechanism.

As a lithium battery package hold-down mechanism's improvement, electric core include positive plate, negative pole piece and set up in the positive plate with diaphragm, electrolyte between the negative pole piece.

Compared with the prior art, the utility model discloses the beneficial effect who gains does:

a lithium battery packaging and pressing mechanism is matched with a supporting piece, a lifting assembly and a rotating and pressing assembly for use, wherein the lifting assembly comprises a first air cylinder, the rotating and pressing assembly comprises a rotating part and a pressing part, an output shaft of the first air cylinder is connected with the bottom of the supporting piece, the rotating part is arranged on the supporting piece, one end of the pressing part is connected with the rotating part, the rotating part drives the compressing part to rotate, so that the other end of the compressing part can rotate to the upper part of the battery core, then the first air cylinder is driven to drive the supporting part to ascend or descend, when the pressing part moves to the upper part of the battery core through the rotating part, the first air cylinder drives the supporting piece to descend, and then drive and compress tightly electric core of stepping down under the portion that compresses tightly, the effectual portion that prevents compresses tightly makes the surface contact with electric core at the rotation, leads to compressing tightly the portion and rips electric core surface or beat the head of shallow pit face and produce the pole piece and turn over, and then influence the quality of electric core.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a schematic structural diagram at a in fig. 2.

Fig. 4 is a schematic structural view of the support seat of the present invention.

Reference numerals: 1. a support member; 2. a lifting assembly; 3. a first cylinder; 4. rotating the compacting assembly; 5. a rotating part; 6. a pressing part; 7. a base plate; 8. mounting a plate; 9. a limiting component; 10. fixing a sleeve; 11. a guide bar; 12. a second cylinder; 13. a rack; 14. a gear; 15. a supporting seat; 16. layering; 17. a rotating shaft; 18. mounting holes; 19. a sliding assembly; 20. a slide rail; 21. a slider; 22. a groove; 23. a fixing plate; 24. a first connecting plate; 25. a second connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1-4, a lithium battery packaging and compressing mechanism includes a supporting member 1, a lifting assembly 2, and a rotating and compressing assembly 4; the lifting assembly 2 is arranged at the bottom of the support member 1, the lifting assembly 2 comprises a first cylinder 3, and an output shaft of the first cylinder 3 is connected with the bottom of the support member 1; rotatory subassembly 4 that compresses tightly includes rotating part 5, compresses tightly portion 6, and rotating part 5 sets up in support piece 1's upper surface, and the one end that compresses tightly portion 6 is connected with rotating part 5, and the other end that compresses tightly portion 6 is used for the rotation to compress tightly electric core.

Compared with the prior art, the lithium battery packaging and pressing mechanism of the utility model is used by matching the supporting piece 1, the lifting component 2 and the rotary pressing component 4, the lifting component 2 comprises the first air cylinder 3, the rotary pressing component 4 comprises the rotating part 5 and the pressing part 6, the output shaft of the first air cylinder 3 is connected with the bottom of the supporting piece 1, the rotating part 5 is arranged on the supporting piece 1, one end of the pressing part 6 is connected with the rotating part 5, the pressing part 6 is driven to rotate by the rotating part 5, the other end of the pressing part 6 can rotate to the upper part of the battery cell, then the first air cylinder 3 is driven, the first air cylinder 3 drives the supporting piece 1 to ascend or descend, when the pressing part 6 moves to the upper part of the battery cell through the rotating part 5, the first air cylinder 3 drives the supporting piece 1 to descend, further drives the pressing part 6 to descend to press the battery cell, the pressing part 6 is effectively prevented from being in surface contact with the battery cell during rotation, the pressing part 6 is led to scratch the surface of the battery cell or hit the head of the shallow pit surface to generate the turnover of the pole piece, and the quality of the battery cell is further influenced.

In this embodiment, the lifting assembly 2 further includes a bottom plate 7 and a mounting plate 8; the number of the mounting plates 8 is at least two, the at least two mounting plates 8 are respectively arranged at two ends of the bottom plate 7, the supporting piece 1 is arranged above the mounting plates 8, and the first air cylinder 3 is arranged between the supporting piece 1 and the bottom plate 7; through bottom plate 7, mounting panel 8's cooperation is used, mounting panel 8 is provided with at least two, at least two mounting panels 8 set up respectively in the both ends of bottom plate 7, support piece 1 sets up in the top of mounting panel 8, mounting panel 8 is used for supporting support piece 1, make to form the interval that is used for installing first cylinder 3 between support piece 1 and the bottom plate 7, effectual installing first cylinder 3, drive first cylinder 3, first cylinder 3 drives support piece 1 and rises or descends, when first cylinder 3 drives support piece 1 and descends, through mounting panel 8's setting, the effectual decline position to first cylinder 3 limits, collide with first cylinder 3 when preventing support piece 1 from descending.

In the embodiment, each mounting plate 8 is provided with a limiting assembly 9, and each limiting assembly 9 comprises a fixed sleeve 10 and a guide rod 11; the fixing sleeve 10 is arranged on the mounting plate 8, one end of the guide rod 11 is connected with the bottom of the support member 1, and the other end of the guide rod 11 is connected with the fixing sleeve 10 in a sliding manner; through spacing subassembly 9's setting, spacing subassembly 9 is including fixed cover 10, guide bar 11, fixed cover 10 sets up on mounting panel 8, the one end of guide bar 11 is connected with support piece 1's bottom, drive first cylinder 3, first cylinder 3 drives support piece 1 and rises or descend, the other end through guide bar 11 and the sliding connection of fixed cover 10, supplementary first cylinder 3 drives support piece 1 and rises or descend, prevent that support piece 1 from taking place the slope when rising or descending, and then influence the effect that compresses tightly of piece, and scratch the aluminium foil on electric core surface easily.

In the present embodiment, the rotating portion 5 includes a second cylinder 12, a rack 13, and a gear 14, and the pressing portion 6 includes a supporting seat 15, a pressing bar 16, and a rotating shaft 17; the second cylinder 12 and the support seat 15 are respectively arranged at two ends of the support member 1, a mounting hole 18 is arranged on the support seat 15, one end of a rotating shaft 17 is connected with a pressing bar 16, the other end of the rotating shaft 17 penetrates through the mounting hole 18 to be connected with a gear 14, an output shaft of the second cylinder 12 is connected with the rack 13, and the gear 14 is meshed with the rack 13; through the second cylinder 12, the rack 13, the gear 14, the supporting seat 15, the layering 16, the cooperation of pivot 17 is used, the second cylinder 12, the supporting seat 15 sets up respectively in support piece 1's both ends, be provided with mounting hole 18 on the supporting seat 15, the one end and the layering 16 of pivot 17 are connected, the other end of pivot 17 passes mounting hole 18 and is connected with gear 14, in use, drive second cylinder 12, be connected with rack 13 through the output shaft of second cylinder 12, second cylinder 12 drives rack 13 round trip movement, rack 13 and gear 14's meshing, rack 13 drives gear 14, the pivot 17 is rotatory, and then it is rotatory to drive layering 16, effectual drive layering 16 is rotatory to the top of electric core, be convenient for to compressing tightly to electric core.

In the embodiment, a sliding component 19 is arranged 2 between the support 1 and the rack 13; through the setting of slip subassembly 19, the effectual supplementary second cylinder 12 drives the removal of rack 13, prevents that rack 13 from taking place the displacement at the in-process that removes.

In the present embodiment, the sliding assembly 19 includes a slide rail 20 and a slide block 21; the upper surface of the supporting piece 1 is provided with a groove 22, the sliding rail 20 is arranged in the groove 22, the rack 13 is arranged on the sliding block 21, the sliding block 21 is connected with the sliding rail 20 in a sliding manner, and the output shaft of the second cylinder 12 is connected with the sliding block 21; through slide rail 20, sliding block 21's cooperation is used, be provided with recess 22 on support piece 1, slide rail 20 sets up in recess 22, sliding connection through sliding block 21 and slide rail 20, drive second cylinder 12, the output shaft and the slider of second cylinder 12 are connected, second cylinder 12 drives sliding block 21 and slides on slide rail 20, rack 13 sets up on sliding block 21, sliding block 21 drives rack 13 and slides on slide rail 20, the removal of effectual supplementary rack 13, make the removal of gear 14 more steady, thereby make gear 14, pivot 17 drives the steady rotation of layering 16.

In this embodiment, the supporting seat 15 includes a fixing plate 23 and a first connecting plate 24; one end of the first connecting plate 24 is arranged on the support member 1, the fixing plate 23 is arranged above the support member 1 and connected with the other end of the first connecting plate 24, and the mounting hole 18 is arranged on the fixing plate 23; through the cooperation of fixed plate 23, first connecting plate 24, fixed plate 23 sets up on support piece 1 through first connecting plate 24, and mounting hole 18 sets up on fixed plate 23, and effectual countershaft 17, layering 16 are installed.

In this embodiment, the supporting seat 15 further includes a second connecting plate 25, the second connecting plate 25 is disposed between the supporting member 1 and the fixing plate 23; through the setting of second connecting plate 25, second connecting plate 25 sets up between support piece 1 and fixed plate 23 for support fixed plate 23, the effectual layering 16 that prevents makes fixed plate 23 atress uneven, and then leads to fixed plate 23 to the direction slope of layering 16.

Example two

A lithium battery comprises a battery cell and a packaging film used for packaging the battery cell, wherein the battery cell is applied to the lithium battery packaging and pressing mechanism.

Compared with the prior art, the lithium battery adopts the pressing mechanism to press the battery cell when being packaged, the probability that the aluminum foil on the surface of the battery cell is scratched is effectively reduced, and the quality of the lithium battery is further improved.

In this embodiment, the battery cell includes a positive plate, a negative plate, and a separator and an electrolyte disposed between the positive plate and the negative plate.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A lithium battery package hold-down mechanism, comprising:

a support member;

2. The lithium battery pack pressing mechanism as claimed in claim 1, wherein the lifting assembly further comprises a base plate, a mounting plate;

3. The lithium battery pack pressing mechanism as claimed in claim 2, wherein each of the mounting plates is provided with a limiting component, and the limiting component comprises a fixing sleeve and a guide rod;

4. The lithium battery pack pressing mechanism as claimed in claim 1, wherein the rotating part comprises a second cylinder, a rack, and a gear, and the pressing part comprises a supporting base, a pressing bar, and a rotating shaft;

5. The lithium battery pack pressing mechanism as claimed in claim 4, wherein a sliding member is provided between the support member and the rack.

6. The lithium battery pack pressing mechanism as claimed in claim 5, wherein the sliding member includes a slide rail, a slide block;

7. The lithium battery pack pressing mechanism as claimed in claim 4, wherein the supporting base comprises a fixing plate, a first connecting plate;

8. The lithium battery pack pressing mechanism as claimed in claim 7, wherein the supporting base further comprises a second connecting plate, and the second connecting plate is disposed between the supporting member and the fixing plate.

9. A lithium battery, comprising a battery cell and an encapsulation film for encapsulating the battery cell, wherein the battery cell is applied to a lithium battery encapsulation pressing mechanism according to any one of claims 1 to 8.

10. The lithium battery of claim 9, wherein the cell comprises a positive plate, a negative plate, and a separator and an electrolyte disposed between the positive plate and the negative plate.