CN211150635U

CN211150635U - Laminate polymer battery is support and laminate polymer battery module for module

Info

Publication number: CN211150635U
Application number: CN201922404227.3U
Authority: CN
Inventors: 张雄军; 李佛; 周浩; 姚德林; 杨新林; 赵成; 吴首雄; 朱佐鑫; 李龙; 蒋旺
Original assignee: Hunan Dianjiangjun New Energy Co ltd
Current assignee: Hunan Dianjiangjun New Energy Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-07-31
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a soft-packaged battery is support for module, set up a plurality of through-holes that are used for electric core utmost point ear to pass on the support, the both sides downwardly extending of through-hole is equipped with and is used for making things convenient for electric core utmost point ear to insert a pair of guide wall of through-hole, the slope of guide wall sets up, and is a pair of clearance between the guide wall is big end down's wedge. The utility model also provides a laminate polymer battery module, including a plurality of electric cores, fixed plate and foretell electric core unit support for laminate polymer battery module. The utility model provides a support through-hole department downwardly extending is equipped with the guide wall, utilizes the utility model discloses a when support group equipment electric core, the back has been arranged to a plurality of electric cores, because the existence of guide wall, during all electric core utmost point ears can once only insert the through-hole, simplifies the assembling process of electric core greatly, simplifies electric core group technology, reduces the equipment degree of difficulty.

Description

Laminate polymer battery is support and laminate polymer battery module for module

Technical Field

The utility model belongs to the new forms of energy field especially relates to a support and battery module for battery module.

Background

With the rapid development of electric bicycles and the requirement and planning of new energy development by the state, in new energy application, a lithium ion battery is mostly adopted as an electric energy storage device, and the lithium ion battery can have practical value at the present stage.

There are generally two approaches to the grouping of pouch cells. One method is to pack a single cell into a fixed support, then arrange alternately, and then use the fastener to connect the fixed support that is equipped with the cell of a certain amount and fasten and make the module, and this kind of accessory of group's method is many, can reduce volume energy density, and module assembly and fixed are loaded down with trivial details. The other method is to arrange a certain number of single battery cells in order in a groove-shaped battery box, wherein the battery box is provided with a cover plate, and battery tabs penetrate out of the cover plate and are connected in parallel or in series, but the operation of inserting the arranged single battery cell tabs into the cover plate is difficult in the assembly process. And in the use process, each string of batteries are electrically connected without isolation protection, so that short circuit and ignition are easily caused in the assembly process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome not enough and the defect mentioned in the above background art, provide a laminate polymer battery module of easily assembling, laminate polymer battery module that security performance is high reaches laminate polymer battery module including above-mentioned support. In order to solve the technical problem, the utility model provides a technical scheme does:

the utility model provides a support for laminate polymer battery module, set up a plurality of through-holes that are used for electric core utmost point ear to pass on the support, the both sides downwardly extending of through-hole is equipped with and is used for making things convenient for electric core utmost point ear to insert a pair of guide wall of through-hole, the guide wall slope sets up, and is a pair of clearance between the guide wall is big end down's wedge.

In the above-described pouch battery module support, preferably, the inclination angle θ of the guide wall is 10 to 30 °. The size of the angle is related to the top edge sealing width of the battery cell and the thickness of the battery cell, and various factors are considered comprehensively, so that the optimal angle is determined to be 10-30 degrees.

In the above-mentioned laminate polymer battery is in support for module, preferred, the guide wall is big-end-up's wedge, and adjacent a pair of the outer wall of guide wall sets up vertically downwards. The arrangement mode can ensure that the gap between the adjacent pair of guide walls is regular and square, and the battery cell tabs can conveniently penetrate through the through holes and then be fixed between the battery cell and the support. If the filling foam is directly inserted into the regular square, the regular square is beneficial to the disassembly and the assembly of the foam, the shape of the adopted foam is more regular, and the processing and the manufacture of the foam are also beneficial.

In the above-mentioned laminate polymer battery is support for module, preferably, the upper surface of support is protruding upwards around the same electrode of adjacent electric core and is formed the division wall. More preferably, the partition wall includes a pair of long sides parallel to the cell tabs and a short side far from the edge of the bracket and connecting the pair of long sides. The existence of division wall, effectively kept apart between cluster and the cluster on the support, prevent to cause the circuit short circuit to strike sparks at electrically conductive foreign matters such as equipment or turnover in-process metal, the security performance of battery module is higher.

In the above-mentioned support for the soft package battery module, preferably, a plurality of the partition walls are arranged at intervals to form a wire casing for laying wires, and the partition walls are fixedly provided with a wire clip which extends into the wire casing and is used for fixing the wires. More preferably, a plurality of line cards are uniformly arranged on the long side and the short side. The utility model discloses in, after the division wall is upwards protruding, can form the wire casing in the space of division wall, the sampling wire is laid in the wire casing, and receives the restraint of ply-yarn drill, and the sampling wire is walked the line and is more normal, walks the line more pleasing to the eye.

As a general technical concept, the utility model also provides a laminate polymer battery module, including a plurality of electric cores, fixed plate and foretell electric core unit laminate polymer battery module support, electric core set firmly in the space that support and fixed plate formed.

In the above-mentioned laminate polymer battery module, preferably, be equipped with the buckle on the lateral wall of support, set up on the fixed plate be used for with buckle matched with draw-in groove. The buckle and the clamping groove fixing support and the fixing plate are more easily assembled and disassembled integrally.

Compared with the prior art, the utility model has the advantages of:

1. the utility model provides a support through-hole department downwardly extending is equipped with the guide wall, utilizes the utility model discloses a when support group equipment electric core, the back has been arranged to a plurality of electric cores, because the existence of guide wall, during all electric core utmost point ears can once only insert the through-hole, simplifies the assembling process of electric core greatly, simplifies electric core group technology, reduces the equipment degree of difficulty.

2. The utility model provides a support simple structure, easily production is favorable to extensive popularization and application.

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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a cell in an embodiment.

Fig. 2 is a schematic structural diagram of the pouch battery module in the embodiment.

FIG. 3 is a top view of the bracket of the embodiment.

Fig. 4 is a sectional view of plane a-a in fig. 3.

FIG. 5 is a side view of the stent of the example.

Fig. 6 is a schematic structural diagram of another preferred pouch battery module in the embodiment.

Fig. 7 is a schematic structural view of a large U-shaped fixing plate in the embodiment.

Illustration of the drawings:

1. a support; 2. a battery core tab; 3. a through hole; 4. a guide wall; s1, an outer wall; 5. an electric core; 6. a partition wall; 7. a wire; 8. a wire slot; 9. a line card; 10. a fixing plate; 11. buckling; 12. a card slot; 13. a cell body; 14. a buffer layer; 15. an adjustable fastening device; 151. fastening a nut; 152. pressing and riveting the screw; 16. a separator plate; 211. a large U-shaped fixing plate; 212. a small U-shaped fixing plate; 213. fixing the ear; 22. a base plate.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.

Example (b):

as shown in fig. 1-5, in the support for the laminate polymer battery module of this embodiment, a plurality of through holes 3 for passing the battery core tab 2 are provided on the support 1, a pair of guide walls 4 for facilitating the insertion of the battery core tab 2 into the through hole 3 are provided on two sides of the through hole 3 in a downward extending manner, the guide walls 4 are arranged in an inclined manner, and a gap between the pair of guide walls 4 is a wedge shape with a small top and a large bottom.

In the present embodiment, the guide wall 4 is inclined at an angle θ of 10 to 30 ° (any of the above ranges).

In this embodiment, the guide walls 4 are formed in a wedge shape having a large upper portion and a small lower portion, and the outer walls S1 of the adjacent pair of guide walls 4 are disposed vertically downward.

In this embodiment, the upper surface of the bracket 1 protrudes upward to form a partition wall 6 at the periphery of the same electrode of the adjacent battery cell 5. Specifically, the partition wall 6 includes a pair of long sides parallel to the cell tabs 2 and short sides far from the edge of the support 1 and connecting the pair of long sides.

In this embodiment, a plurality of partition walls 6 are arranged at intervals to form wire slots 8 for laying wires 7, and the partition walls 6 are fixedly provided with wire clips 9 extending into the wire slots 8 and used for fixing the wires 7. Specifically, in the present embodiment, the line cards 9 are provided in both the long side and the short side.

The laminate polymer battery module of this embodiment includes a plurality of electric cores 5, fixed plate 10 and above-mentioned support 1, and electric core 5 sets firmly in the space that support 1 and fixed plate 10 formed.

In this embodiment, a buckle 11 is disposed on a side wall of the bracket 1, and a slot 12 for matching with the buckle 11 is disposed on the fixing plate 10.

When utilizing the support equipment battery module in this embodiment, arrange electric core 5 as required earlier, then aim at the corresponding clearance between a pair of guide wall 4 and pass all electric core 5's electric core utmost point ear 2, be connected with the battery utmost point ear 2 of converging piece and adjacent electric core 5 on the support 1, the assembling process is easier.

As shown in fig. 6 to 7, another preferred laminate polymer battery module in this embodiment includes a plurality of battery cells 5, a fixing plate 10 and the bracket 1, where the plurality of battery cells 5 are fixedly disposed in a space formed by the bracket 1 and the fixing plate 10; the battery cell 5 comprises battery cell bodies 13 and battery cell tabs 2, and a buffer layer 14 for buffering pressing force between the battery cell bodies 13 is arranged between the adjacent battery cell bodies 13; the fixing plate 10 includes a side fixing plate, the side fixing plate includes a set of U-shaped fixing plates that are mutually matched, and the set of U-shaped fixing plates are fixedly connected through an adjustable fastening device 15 for adjusting pressing force between the cell bodies 13.

In this embodiment, the cushion layer 14 is an elastic cotton layer having an elastic deformation amount of 30 to 50% (any of the above ranges), and the thickness of the elastic cotton layer is 0.5 to 1.5mm (any of the above ranges, preferably 1 mm).

In this embodiment, a separation plate 16 is disposed in a gap between the battery cell 5 and the U-shaped fixing plate.

In this embodiment, a set of U-shaped fixed plate includes big U fixed plate 211 and little U fixed plate 212 that mutually support, and the bottom of big U fixed plate 211 is equipped with the fixed ear 213 to the inside extension of big U fixed plate 211, and fixed plate 10 still includes bottom plate 22, and bottom plate 22 passes through fixed ear 213 and can dismantle with the side fixed plate and be connected.

In this embodiment, the adjustable fastening device 15 includes a fastening nut 151 and a rivet pressing screw 152, the rivet pressing screw 152 is fixedly disposed on one of the U-shaped fixing plates of the side fixing plate, a fixing opening for the rivet pressing screw 152 to pass through is correspondingly disposed on the other U-shaped fixing plate, and the fastening nut 151 is rotatably disposed on the rivet pressing screw 152 in an adjustable position.

In the preferred soft package battery module, firstly, the battery cells 5 and the buffer layer 14 are arranged to obtain a battery cell group, the bottom plate 22 is arranged in the large U-shaped fixing plate 211, and the isolation plate 16 is arranged; then, the battery cell group is placed in the large U-shaped fixing plate 211, and at the moment, the large U-shaped fixing plate 211 plays a role in prepressing, fixing and protecting the battery cell 5; the support 1 is arranged on the top of the battery cell 5, so that the support 1 restrains the battery cell 5 from the top of the battery cell 5; finally, the small U-shaped fixing plate 212 is installed, and the pre-compression force between the large U-shaped fixing plate 211 and the small U-shaped fixing plate 212 is adjusted through the adjustable fastening device 15, so that the electrical core 5 is fixed in all directions. The fixing mode of the battery cell 5 has the advantages of convenience in assembly and fixation and the like.

Among the above-mentioned preferred laminate polymer battery module, place buffer layer 14 between two adjacent electric cores 5, in battery cyclic utilization, buffer layer 14 can allow to have certain inflation space between electric core 5, prevents to lead to the sharp increase of the confining force of pre-compaction fixed knot structure because of the inflation of electric core 5, leads to the obvious decline of battery performance.

Among the above-mentioned preferred laminate polymer battery module, adopt a set of U-shaped fixed plate of mutually supporting as the side fixed plate, pass through adjustable fastener 15 rigid coupling between a set of U-shaped fixed plate, can conveniently realize the regulation of fixed plate 10 to electric core 5 packing force. The fixing form is matched with the buffer layer 14, and the effect is better.

Claims

1. The utility model provides a support for laminate polymer battery module, a plurality of through-holes (3) that are used for electric core utmost point ear (2) to pass have been seted up on support (1), the both sides downwardly extending of through-hole (3) is equipped with and is used for making things convenient for electric core utmost point ear (2) to insert a pair of guide wall (4) of through-hole (3), guide wall (4) slope sets up, and is a pair of clearance between guide wall (4) is big end down's wedge.

2. The holder for the pouch battery module according to claim 1, wherein the guide wall (4) has an inclination angle θ of 10 to 30 °.

3. The holder for the pouch battery module according to claim 1, wherein the guide walls (4) are wedge-shaped with a large top and a small bottom, and outer walls (S1) of an adjacent pair of the guide walls (4) are vertically downwardly disposed.

4. The bracket for the soft package battery module according to any one of claims 1 to 3, wherein the upper surface of the bracket (1) is protruded upwards to form a separation wall (6) at the periphery of the same electrode of the adjacent battery cell (5).

5. The support for the soft package battery module as claimed in claim 4, wherein the partition wall (6) comprises a pair of long edges arranged in parallel with the cell tabs (2) and short edges far away from the edge of the support (1) and connecting the pair of long edges.

6. The bracket for the soft package battery module according to claim 4, wherein a plurality of the isolation walls (6) are arranged at intervals to form wire slots (8) for arranging wires (7), and a wire clamp (9) which extends into the wire slots (8) and is used for fixing the wires (7) is fixedly arranged on each isolation wall (6).

7. The utility model provides a laminate polymer battery module, its characterized in that includes a plurality of electric cores (5), fixed plate (10) and any one of claims 1-6 electricity core unit laminate polymer battery module with support (1), electric core (5) set firmly in the space that support (1) and fixed plate (10) formed.

8. The soft package battery module according to claim 7, wherein a buckle (11) is arranged on the side wall of the bracket (1), and a clamping groove (12) matched with the buckle (11) is formed in the fixing plate (10).