CN216850129U

CN216850129U - Soft package battery pack

Info

Publication number: CN216850129U
Application number: CN202123195979.7U
Authority: CN
Inventors: 潘多昭
Original assignee: Jiangsu Lejia Shengfei New Energy Technology Co ltd
Current assignee: Jiangsu Lejia Shengfei New Energy Technology Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-06-28
Anticipated expiration: 2031-12-20

Abstract

The utility model relates to a disclose soft packet of battery, include: the battery pack comprises a battery pack shell, a battery pack body and a battery pack, wherein the battery pack shell is provided with an accommodating space capable of accommodating M soft package cells; the M baffle plate assemblies are detachably arranged in the accommodating space so as to divide the accommodating space into M battery cell accommodating cavities matched with the soft package battery cells, each baffle plate assembly comprises a baffle plate, a limiting plate and a supporting plate, the limiting plate and the supporting plate are oppositely arranged and are vertically arranged at the upper end and the lower end of the baffle plate, and each limiting plate is provided with a through hole for extending a tab; m soft-packaged battery cells which are installed in the battery cell accommodating cavity in a one-to-one correspondence mode, wherein tabs of the soft-packaged battery cells extend out of the through holes from the tabs, and M is a positive integer larger than 1; the utility model can provide independent holding space for the soft package battery cell through the frame structure, and provides expansion space for each battery cell; and the group battery equipment is convenient, small, electric core increase and decrease convenient and fast, can be quick install and disassemble single laminate polymer battery.

Description

Soft package battery pack

Technical Field

The utility model relates to the technical field of batteries, concretely relates to laminate polymer battery group.

Background

The lithium battery has the advantages of high energy density, long service life, high working voltage and the like, and becomes the first choice of the power battery, and particularly, the soft package lithium ion battery is favored by the manufacturers of the power battery by virtue of the advantages of good safety performance, light weight, flexible design and the like. In order to meet the use requirements of the equipment, a plurality of soft package batteries are generally required to be assembled in series or in parallel.

At present, in laminate polymer battery module, multilayer laminate polymer battery overlaps mutually and establishes and directly place in restraint frame, for guaranteeing multilayer laminate polymer battery and restraint frame keep relatively fixed, restraint frame upper and lower both ends set up upper and lower end cover, use the form that long metal bolt runs through upper and lower end cover and cooperation nut, provide restraint power for upper end cover, lower end cover, long metal bolt also runs through the frame body that is located the centre simultaneously. As long as there is the group battery to have the laminate polymer battery damage just need break up whole reassembly, the installation with disassemble complicacy, lead to laminate polymer battery to warp easily, influence the life of battery. There is therefore a need for a solution to the above problems.

Disclosure of Invention

In order to overcome the technical problem, the utility model aims to provide a soft-package battery group can be drawn into the rolling axle with the grey cloth is tight real.

The purpose of the utility model can be realized by the following technical proposal:

a pouch battery comprising: the battery pack comprises a battery pack shell, a battery pack body and a battery pack, wherein the battery pack shell is provided with an accommodating space capable of accommodating M soft package cells; the M baffle plate assemblies are detachably arranged in the accommodating space so as to divide the accommodating space into M battery cell accommodating cavities matched with the soft package battery cells, each baffle plate assembly comprises a baffle plate, a limiting plate and a supporting plate, the limiting plate and the supporting plate are oppositely arranged and are vertically arranged at the upper end and the lower end of the baffle plate, and each limiting plate is provided with a through hole for extending a tab; the soft-packaged electrical core that the intracavity was held to a M one-to-one is installed to electric core, and the utmost point ear of soft-packaged electrical core stretches out the through-hole from utmost point ear and stretches out, and wherein, M is for being greater than 1 positive integer.

Furthermore, the front side wall and the rear side wall of the battery pack shell are provided with M chute units, each chute unit comprises two positioning chutes which are arranged in parallel and fixed on the front side wall and the rear side wall of the battery pack shell respectively, the front side and the rear side of each partition plate are provided with sliding pieces in sliding fit with the corresponding pair of positioning chutes respectively, the partition plates are fixed on the front inner wall of the battery pack shell through corresponding fixing parts after sliding into the corresponding chute units, and the limiting plates are rotatably installed on the partition plates.

Furthermore, the limiting plate is rotatably installed on the partition plate, supporting blocks are arranged on two sides of the limiting plate, supporting grooves are formed in positions, corresponding to the supporting blocks, of the battery pack shell, and the groove bottoms of the supporting grooves are used for supporting the supporting blocks.

Further, the fixing portion includes an internally threaded hole formed at the bottom of the supporting groove, a through hole formed on the supporting block, and a threaded fastener fixing the supporting block to the re-supporting groove.

Furthermore, the battery pack shell comprises a frame structure and a lantern ring for hooping the frame structure, the frame structure is formed by a pair of oppositely arranged first side plates and a pair of oppositely arranged second side plates in a surrounding way, the two first side plates are respectively a front side plate and a rear side plate of the battery pack shell, the two second side plates are respectively a left side plate and a right side plate of the battery pack shell, the first side plates are formed by sequentially connecting M connecting plates, the left end of each connecting plate is provided with a positioning hole group, the right end of each connecting plate is provided with a positioning shaft group correspondingly arranged with the positioning hole group, the M connecting plates are sequentially connected to form the first side plates in a mode that the positioning shaft groups are inserted into the positioning hole groups, a plurality of positioning chutes are arranged on the connecting plates, two positioning shaft groups respectively matched with the positioning hole groups on the left end of the front side plate and the left end of the rear side plate are arranged on the left side plate, two positioning hole groups respectively matched with the positioning shaft groups on the right end of the front side plate and the right end of the rear side plate are arranged on the right side plate, the front side plate, the left side plate, the right side plate and the rear side plate are sequentially connected in a mode of inserting the positioning shaft group into the positioning hole group to form a frame structure.

Further, the partition plate is a heat dissipation aluminum plate.

Furthermore, the soft-packaged battery core is covered with foam.

The utility model has the advantages as follows: independent accommodating spaces can be provided for the soft-packaged battery cells through the frame structure, so that extrusion deformation cannot be caused among the battery cells, and expansion spaces are provided for the battery cells; and the group battery equipment is convenient, small, electric core increase and decrease convenient and fast, can be quick install and disassemble single laminate polymer battery, and can guarantee the reliable connection between the series-parallel connection electric core. Through heat conduction of the frame structure, heat on the surface of the battery pack can be better transferred to the air, heat dissipation performance is good, and expansion of the lithium battery caused by overhigh temperature of the battery pack is avoided.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a pouch battery pack according to an embodiment of the present invention;

fig. 2 is an exploded view of a pouch battery pack according to an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2; and

fig. 4 is a front view of a baffle assembly in an embodiment of the present invention.

In the figure: 1 is the connecting plate, 11 is the support groove, 12 is the location spout, 2 is the left side board, 3 is the right side board, 4 is the locating hole, 5 is the location axle, 6 is the lantern ring, 7 is the baffle, 71 is the baffle main part, 72 is the slider, 8 is the limiting plate, 81 is that the through-hole is stretched out to utmost point ear, 9 is the backup pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the embodiments of the present invention and the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 is a schematic structural diagram of a pouch battery pack according to an embodiment of the present invention. Fig. 2 is an exploded view of a pouch battery pack according to an embodiment of the present invention. Fig. 3 is an enlarged view of a portion a in fig. 2.

As shown in fig. 1 to 3, a pouch battery pack includes a battery pack case, M separator 7 assemblies, and M pouch cells (not shown), where M is a positive integer greater than 1.

The battery housing comprises a frame structure and a collar 6 that grips the frame structure.

The frame structure has the accommodation space that can hold M soft-packaged electric core, is surrounded by the first curb plate of a pair of relative setting and the second curb plate of a pair of relative setting and forms.

The two first side plates are respectively a front side plate and a rear side plate of the battery pack shell. Each first side plate is formed by connecting M connecting plates 1 in sequence. The left end of the connecting plate 1 is provided with 4 groups of positioning holes, and the right end is provided with 5 groups of positioning shafts which are arranged corresponding to the 4 groups of positioning holes. M connecting plates 1 are sequentially connected in a mode of inserting the positioning shafts 5 into the positioning holes 4 to form a first side plate. The 4 groups of locating hole include three equal interval setting's locating

hole

4, and 5 groups of location axle include three respectively with three locating hole 4 corresponding location axle 5 that sets up.

The two second side plates are the left 2 and right 3 side plates of the battery housing, respectively. Have two on the left side board 2 respectively with front side board left end and the rear side board left end on 4 groups of complex location axle 5 groups, have two on the right side board 3 respectively with front side board right-hand member and rear side board right-hand member on the location axle 5 groups of complex location hole 4 groups, front side board, left side board 2, right side board 3, rear side board connect gradually through the mode that location axle 5 groups inserted location hole 4 groups and form frame construction.

The collar 6 is sleeved on the frame structure.

As shown in fig. 1 to 4, M partition plate 7 assemblies are detachably mounted in the accommodating space so as to divide the accommodating space into M cell accommodating cavities adapted to the soft package cell. The partition 7 assembly comprises a partition 7, and a limit plate 8 and a support plate 9 which are oppositely arranged and vertically arranged at the upper end and the lower end of the partition 7.

The front and rear side walls of the battery pack case have M sliding groove units, each sliding groove unit includes two positioning sliding grooves 12 which are arranged in parallel and fixed on the front and rear side walls of the battery pack case, respectively, wherein each connecting plate 1 has a plurality of the positioning sliding grooves 12. That is, a pair of connecting plates 1 disposed opposite to each other has a plurality of chute units. Each partition 7 has a partition body 71 and sliding members 72 located at the front and rear sides of the partition body 71 and slidably engaged with the corresponding slide groove units, and the partition 7 is fixed to the front inner wall of the battery pack case by corresponding fixing portions after sliding into the corresponding slide groove units. The partition 7 is a heat-dissipating aluminum plate.

The limiting plate 8 is provided with a tab extending through hole 81, the limiting plate 8 is rotatably mounted on the partition plate 7, supporting blocks are arranged on two sides of the limiting plate 8, supporting grooves 11 are formed in positions, corresponding to the supporting blocks, on the front side wall and the rear side wall of the battery pack shell, and the bottom of each supporting groove 11 is used for supporting the supporting blocks.

The fixing portion includes an internal threaded hole formed at the bottom of the support groove 11, a through hole formed on the support block, and a threaded fastener, which may be a bolt or the like, having a lower end passing through the through hole and screwed into the internal threaded hole to fix the support block to the pack case.

M soft-packaged electrical core one-to-one is installed in M electrical core intracavity, and soft-packaged electrical core's utmost point ear stretches out through-hole 81 from utmost point ear and stretches out. The soft-packaged battery core is covered with foam. M soft-packaged cells can be connected in series or in parallel.

To sum up, it is the specific application example of the present invention, to the protection scope of the present invention does not constitute a limitation, and the technical solution adopting equivalent replacement all falls within the protection scope of the present invention.

Claims

1. A pouch battery, comprising: the battery pack comprises a battery pack shell, a battery pack body and a battery pack, wherein the battery pack shell is provided with an accommodating space capable of accommodating M soft package cells; the M separator assemblies are detachably mounted in the accommodating space so as to divide the accommodating space into M battery cell accommodating cavities matched with the soft package battery cells, each separator assembly comprises a separator, a limiting plate and a supporting plate, the limiting plate and the supporting plate are oppositely arranged and vertically mounted at the upper end and the lower end of the separator, and each limiting plate is provided with a through hole for extending a tab; m one-to-one is installed electric core holds the intracavity soft-packaged electrical core, soft-packaged electrical core's utmost point ear certainly the through-hole is stretched out to utmost point ear, wherein, M is for being greater than 1 positive integer.

2. The soft pack battery pack according to claim 1, wherein the front and rear side walls of the battery pack case have M number of chute units, each of the chute units includes two parallel sets and is fixed respectively to the positioning chutes on the front and rear side walls of the battery pack case, each of the front and rear sides of the partition plate has a pair of sliding pieces sliding-fitted to the positioning chutes respectively, the partition plate slides into the corresponding chute units and is fixed to the battery pack through the corresponding fixing portions, the limiting plate is rotatably mounted on the partition plate.

3. The laminate battery pack according to claim 2, wherein the limiting plate is rotatably mounted on the partition plate, support blocks are provided at both sides of the limiting plate, a support groove is provided at a position of the battery pack housing corresponding to the support blocks, and a groove bottom of the support groove is used for supporting the support blocks.

4. The pouch battery pack according to claim 3, wherein the fixing part comprises an internally threaded hole formed at the bottom of the supporting groove, a through hole formed at the supporting block, and a threaded fastener for fixing the supporting block to the supporting groove.

5. The flexible package battery pack according to claim 2, wherein the battery pack case includes a frame structure and a collar for tightly binding the frame structure, the frame structure is formed by a pair of first side plates disposed opposite to each other and a pair of second side plates disposed opposite to each other, the first side plates are respectively a front side plate and a rear side plate of the battery pack case, the second side plates are respectively a left side plate and a right side plate of the battery pack case, the first side plates are formed by connecting M connecting plates in sequence, each connecting plate has a positioning hole group at its left end, a positioning shaft group corresponding to the positioning hole group at its right end, and M connecting plates are sequentially connected to form the first side plates by inserting the positioning shaft group, the connecting plates are provided with a plurality of positioning chutes, the left side plate has two columns, and the positioning chutes at the left ends of the front side plate and the rear side plate are respectively located on the positioning shafts of the front side plate and the rear side plate The hole group is matched with the positioning shaft group, two rows of holes are formed in the right side plate and are respectively matched with the positioning shaft group on the right end of the front side plate and the right end of the rear side plate, and the front side plate, the left side plate, the right side plate and the rear side plate are sequentially connected to form the frame structure in a mode that the positioning shaft group is inserted into the positioning hole group.

6. The pouch battery according to claim 1, wherein the separator is a heat-dissipating aluminum plate.

7. The pouch battery according to claim 1, wherein the pouch cell is covered with foam.