CN217361814U

CN217361814U - Series-parallel connection fixing plate of soft package lithium battery

Info

Publication number: CN217361814U
Application number: CN202221841144.6U
Authority: CN
Inventors: 贺传宇; 李华; 庞丁东
Original assignee: Henan Runlithium New Energy Co ltd
Current assignee: Henan Runlithium New Energy Co ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-09-02
Anticipated expiration: 2032-07-18

Abstract

The utility model discloses a soft packet of lithium cell's cluster parallel fixed plate, including the fixed plate body, the fixed plate body includes the base plate, is close to bottom department on the outer wall of base plate one side and all has seted up two through-holes one with one side outer wall near top department, is close to bottom department on the outer wall of base plate one side and all has seted up four through-holes two near top department with one side outer wall, and the outer wall of base plate one side is close to two adjacent through-holes one and has the welding of copper sheet one, and the outer wall of base plate one side is close to two adjacent through-holes two and has the welding of copper sheet two. The utility model discloses beneficial effect is when being in the same place a plurality of soft packet of lithium cell series-parallel connection, can pass through-hole one, through-hole two on the base plate with utmost point ear for the base plate is in the same place with soft packet of lithium cell installation, and the protection lithium cell that can be fine avoids lithium cell utmost point ear department impaired, and simultaneously, spacing subassembly can carry on spacingly to the lithium cell, reduces the pulling force that utmost point ear welding back born on copper sheet one, copper sheet two, avoids utmost point ear because of the overweight fracture of lithium cell.

Description

Series-parallel connection fixing plate of soft package lithium battery

Technical Field

The utility model relates to a soft packet of lithium cell technical field, concretely relates to soft packet of lithium cell's series-parallel connection fixed plate.

Background

The soft package lithium battery is only provided with a polymer shell on the liquid lithium ion battery. Structurally, the aluminum-plastic film is adopted for packaging, and the soft package battery can only blow and crack at most under the condition of potential safety hazard.

If the bulletin number of authorizing is CN206685459U, the bulletin date of authorizing is 20171128's a soft packet of lithium cell's cluster parallel assembly structure, including soft packet of lithium cell, still include the fixed plate, be equipped with the electrode through-hole that the anodal utmost point ear, the negative pole utmost point ear that supply the battery passed on the fixed plate, still be fixed with the gasket between two adjacent electrode through-holes on the fixed plate, soft packet of lithium cell's anodal utmost point ear, negative pole utmost point ear bending cladding are corresponding the upside of gasket, conductive copper bar compress tightly utmost point ear on the gasket, and conductive copper bar's width can be chooseed for use as required. The utility model only needs to replace the conductive copper bars with different widths when changing the series-parallel connection mode, and has convenient adjustment and good universality; when the single soft package lithium battery is damaged, the damaged soft package lithium battery can be replaced only by loosening the corresponding conductive copper bar, and the maintenance is convenient; the structure also saves space in the height direction of the battery, and improves the energy volume ratio and the energy weight ratio of the lithium ion battery pack.

The soft-package lithium batteries connected in series and parallel in the prior art have few protection structures, so that the lithium batteries are easy to damage, and therefore, a series and parallel connection fixing plate for the soft-package lithium batteries needs to be designed urgently to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a soft packet of lithium cell's series-parallel connection fixed plate to solve the above-mentioned weak point among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a soft packet of lithium cell's cluster parallel fixed plate, includes the fixed plate body, the fixed plate body includes the base plate, be close to bottom department on the outer wall of base plate one side and one side outer wall and be close to top department and all seted up two through-hole one, be close to bottom department and one side outer wall on the outer wall of base plate one side and all seted up four through-hole two near top department welding of department on the outer wall of base plate one side, base plate one side outer wall is close to adjacent two through-hole two department welding and has copper sheet two, base plate one side outer wall is close to both sides department and all sets up the spacing hole that is equidistant structural distribution, and two adjacent spacing downthehole portions are pegged graft and are had spacing subassembly, spacing subassembly is including blocking the shell, integrated into one piece has two spacer pins on the outer wall of card shell one side, and the spacer pin is pegged graft in spacing downthehole portion.

In the technical scheme, the utility model provides a series-parallel connection fixed plate of soft-packaged lithium battery, (1) through the base plate that sets up, when connecting a plurality of soft-packaged lithium batteries in series-parallel, can pass through-hole one, through-hole two on the base plate with utmost point ear, make base plate and soft-packaged lithium battery install together, protection lithium battery that can be fine, avoid lithium battery utmost point ear department impaired; (2) through the arranged limiting assembly, when a plurality of soft package lithium batteries are installed on the substrate, the limiting assembly can limit the lithium batteries, so that the tensile force borne by the lug after being welded on the first copper sheet and the second copper sheet is reduced, and the lug is prevented from being broken due to overweight of the lithium batteries; (3) the utility model discloses a fixed plate body, fixed plate body compare in original soft packet of lithium cell protection architecture simple structure, and the cost is lower, and the facilitate promotion fixed plate body, fixed plate body convenient to use simultaneously can reduce the degree of difficulty of being in the same place fixed plate body and lithium cell installation.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is the utility model relates to a soft packet of lithium cell's series-parallel connection fixed plate embodiment provides the main structure sketch of looking.

Fig. 2 is the utility model relates to a soft packet of lithium cell's series-parallel connection fixed plate embodiment provides spacing subassembly schematic structure.

Description of reference numerals:

the fixing plate comprises a fixing plate body 1, a base plate 2, a first through hole 3, a first copper sheet 4, a second through hole 5, a second copper sheet 6, a limiting hole 7, a limiting assembly 8, a clamping shell 9 and a limiting pin 10.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the attached drawings.

As shown in fig. 1-2, the embodiment of the utility model provides a pair of soft packet of lithium cell's cluster parallel fixed plate, including fixed plate body 1, fixed plate body 1 includes base plate 2, the fine protection lithium cell of base plate 2, avoid lithium cell tab department impaired, be close to bottom department on the outer wall of 2 one sides of base plate and all seted up two through-holes one 3 with one side outer wall near top department, through-hole one 3 is convenient for utmost point ear to pass base plate 2, be close to bottom department on the outer wall of 2 one sides of base plate and all seted up four through-holes two 5 with one side outer wall near top department, through-hole two 5 is convenient for utmost point ear to pass base plate 2, base plate 2 one side outer wall is close to adjacent two through-holes one 3 department welding and has copper sheet one 4, copper sheet one 4 is convenient for the utmost point ear welding that passes two through-holes one 3 on base plate 2, base plate 2 one side outer wall is close to adjacent four through-hole two 5 department welding and has copper sheet two 6, copper sheet two 6 are convenient for make the utmost point ear welding that passes four through-holes two 5 weld on base plate 2.

The utility model provides a pair of soft packet of lithium cell's cluster parallel fixed plate when being in the same place a plurality of soft packet of lithium cell clusters, can pass through-hole one 3 on the base plate 2, two 5 of through-hole with utmost point ear for base plate 2 is in the same place with soft packet of lithium cell installation, and the protection lithium cell that can be fine avoids lithium cell utmost point ear department impaired.

The utility model provides a further embodiment, as shown in fig. 2, base plate 2 one side outer wall is close to both sides department and all sets up the spacing hole 7 that is equidistant structural distribution, and spacing hole 7 is convenient for spacing subassembly 8 and installs on base plate 2, and two adjacent spacing hole 7 inside pegs graft and have spacing subassembly 8, and spacing subassembly 8 supports soft packet of lithium cell, reduces the pulling force that utmost point ear bore, avoids utmost point ear because of the great fracture of lithium cell weight.

The utility model provides a further embodiment, as shown in fig. 2, spacing subassembly 8 is including card shell 9, and card shell 9 has supported soft packet of lithium cell, reduces the pulling force that utmost point ear bore, avoids utmost point ear because of the great fracture of lithium cell weight, and integrated into one piece has two spacer pins 10 on the outer wall of card shell 9 one side, and spacer pin 10 is convenient for make card shell 9 install on base plate 2, and inside spacer pin 10 pegs graft at spacing hole 7.

The working principle is as follows: when using this equipment, can pass through-hole one 3 with soft packet of lithium cell's utmost point ear earlier, through-hole two 5, then reuse welded mode, make utmost point ear fix on copper sheet one 4, copper sheet two 6, realize the series-parallel connection to a plurality of soft packet of lithium cells, can make base plate 2 fix on soft packet of lithium cell simultaneously, later will block 9 joints of shell in the lithium cell both sides, then fix spacing subassembly 8 on base plate 2 through the cooperation of spacer pin 10 with spacing hole 7 again, make spacing subassembly 8 support soft packet of lithium cell, reduce the pulling force that utmost point ear bore, avoid utmost point ear because of the great fracture of lithium cell weight.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. A series-parallel connection fixed plate of a soft package lithium battery comprises a fixed plate body (1) and is characterized in that the fixed plate body (1) comprises a base plate (2), two first through holes (3) are formed in the positions, close to the bottom, of the outer wall on one side of the base plate (2) and the positions, close to the top, of the outer wall on one side of the base plate (2), four second through holes (5) are formed in the positions, close to the bottom and the position, close to the top, of the outer wall on one side of the base plate (2), copper sheets (4) are welded in the positions, close to the adjacent first through holes (3), of the outer wall on one side of the base plate (2), copper sheets (6) are welded in the positions, close to the two sides, of the outer wall on one side of the base plate (2), limit holes (7) distributed in an equidistant structure are formed in the positions, and limit components (8) are inserted in the adjacent two limit holes (7), the limiting assembly (8) comprises a clamping shell (9), two limiting pins (10) are integrally formed on the outer wall of one side of the clamping shell (9), and the limiting pins (10) are inserted into the limiting holes (7).