CN210956822U

CN210956822U - Multi-string single-parallel soft package battery module

Info

Publication number: CN210956822U
Application number: CN201922045342.6U
Authority: CN
Inventors: 李晶; 王秦英
Original assignee: Anhui Lvwo Recycling Energy Technology Co Ltd
Current assignee: Anhui Lvwo Recycling Energy Technology Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-07-07
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a many cluster list and laminate polymer battery module, include: plastic upper cover, soft-packaged electrical core, aluminium bucket and PCB board, soft-packaged electrical core installs in the aluminium bucket, the inside a plurality of fin that still is provided with of aluminium bucket, the fin setting is between two adjacent soft-packaged electrical cores, the laminating of soft-packaged electrical core top is connected with the EVA bubble cotton, a plurality of rectangular hole has all been seted up on EVA bubble cotton and PCB board surface, the rectangular hole that the EVA bubble cotton and PCB board were passed to the utmost point ear of soft-packaged electrical core, PCB board bottom surface is connected with the laminating of the cotton top surface of EVA bubble, PCB board surface still is connected with XH2.5 terminal. The utility model discloses a take aluminium bucket structure and PCB electric connection structure of fin, not only guaranteed the reliability and the vibration resistance of battery fastening, guaranteed to have sufficient inflation space between electric core and the electric core, avoided the electric connection technology of artifical soldering tin simultaneously, not only improved production efficiency, reduced the potential safety hazard that manual operation brought moreover.

Description

Multi-string single-parallel soft package battery module

Technical Field

The utility model relates to a laminate polymer battery PACK technical field, more specifically are a many strings list and laminate polymer battery module.

Background

The soft package battery is a lithium battery with a shell made of a soft package material (usually an aluminum-plastic composite film), and has the advantages of small volume, light weight, high specific energy, high safety, flexible design and the like. The soft package power battery (or soft package battery core) is structurally packaged by an aluminum plastic film, and the positive electrode and the negative electrode of the battery also adopt a battery tab structure, which is different from the conventional plastic shell and metal shell batteries. The capacity of a single soft package cell is 10AH, 20AH, 32AH, 48AH, 50AH, etc., in the practical application process, especially in the low-speed vehicle field, it is likely that the capacity of one cell can already meet our needs, and the most commonly used cell arrays are as follows: 16S1P, 20S1P, 24S1P, etc., and with the increasing use of such a multi-string single-parallel structure, its grouping structure is worth our research.

Present many cluster list and laminate polymer battery PACKs PACK at PACK in-process in groups, and it is fixed that the double faced adhesive tape or the winding of fibre sticky tape is leaned on to the majority between electric core and the electric core, and the electricity between the module needs artifical soldering tin, and such module structural stability is poor, does not leave for the sufficient expansion space of electric core, and the radiating effect is poor, and artifical soldering tin had both increased the cost of labor simultaneously, appears rosin joint again easily, wrong welding scheduling problem. For this reason, a new scheme needs to be designed to give improvements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a many strings list laminate polymer battery module, solved the problem that proposes in the background art, satisfy the in-service use demand.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a many strings list laminate polymer battery module, includes: plastic upper cover, soft-packaged electrical core, aluminium bucket and PCB board, soft-packaged electrical core installs in the aluminium bucket, the inside a plurality of fin that still is provided with of aluminium bucket, the fin sets up two adjacent between the soft-packaged electrical core, the laminating of soft-packaged electrical core top is connected with the EVA bubble cotton, a plurality of rectangular hole has all been seted up on EVA bubble cotton and PCB board surface, the utmost point ear of soft-packaged electrical core passes the rectangular hole of EVA bubble cotton and PCB board, PCB board bottom surface is connected with the laminating of the cotton top surface of EVA bubble, PCB board surface still is connected with XH2.5 terminal.

As an optimal implementation mode of the utility model, the surperficial edge symmetry of PCB board is fixed with the leg, the through-hole has been seted up on the plastic upper cover surface, the leg is arranged in the through-hole.

As an optimal implementation mode of the utility model, the edge of PCB board is provided with three foot of stretching out, three spacing groove has been seted up at the aluminium bucket top, stretch out the foot and inlay at the spacing inslot.

As a preferred embodiment of the utility model, the surface of soft-packaged electrical core is pasted with the insulating film, the thickness of insulating film is 0.2 mm.

As an optimized implementation mode of the utility model, the plastic upper cover is fixed at the top of the aluminum barrel and fixed by adopting a countersunk head screw.

As an optimal implementation mode of the utility model, the utmost point ear of soft-packaged electrical core adopts the mode of spot welding to fix on the steel sheet of PCB board

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses, adopt the aluminium bucket structure and the PCB electrical connection structure of taking the fin, not only guaranteed the reliability and the vibration resistance of battery fastening, guaranteed to have sufficient inflation space between electric core and the electric core, avoided the electrical connection technology of artifical soldering tin simultaneously, not only improved production efficiency, reduced the potential safety hazard that manual operation brought moreover.

Drawings

Fig. 1 is an explosion schematic diagram of a multi-string single-parallel soft package battery module according to the present invention;

FIG. 2 is a structural diagram of the aluminum barrel of the present invention;

FIG. 3 is a structural diagram of the PCB board of the present invention;

FIG. 4 is a structural diagram of the plastic upper cover of the present invention;

fig. 5 is an assembly schematic diagram of the soft-packaged battery cell and the aluminum barrel of the present invention;

fig. 6 is a schematic diagram of the flexible package battery cell of the present invention being inserted into an aluminum barrel and connected to a PCB;

fig. 7 is a schematic view of the assembly of the whole module according to the present invention.

In the figure, a plastic upper cover 1; a combination screw 2; a PCB board 3; EVA foam 4; a soft-package battery cell 5; a countersunk head screw 6; an insulating film 7; an aluminum barrel 8; a heat sink 9; a solder tail 10; a projecting leg 11; a strip hole 12; an XH2.5 terminal 13; a through hole 14; a limiting groove 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a many strings list laminate polymer battery module, includes: the battery comprises a plastic upper cover 1, a soft-packaged battery cell 5, an aluminum barrel 8 and a PCB 3, wherein the soft-packaged battery cell 5 is arranged in the aluminum barrel 8, a plurality of radiating fins 9 are further arranged in the aluminum barrel 8, the radiating fins 9 are arranged between two adjacent soft-packaged battery cells 5, after the soft-packaged battery cell 5 is inserted between the two radiating fins 9, a space for the expansion of the soft-packaged battery cell 5 is reserved between the two radiating fins 9, the aluminum barrel 8 and the radiating fins 9 are integrated into a whole, the radiating efficiency is greatly improved, the radiating fins 9 are separated between every two battery cells, the structural stability of the battery cell is improved, the top of the soft-packaged battery cell 5 is connected with an EVA foam 4 in a laminating manner, a plurality of strip holes 12 are respectively formed in the surfaces of the EVA foam 4 and the PCB 3, a tab of the soft-packaged battery cell 5 penetrates through the EVA foam 4 and the strip holes 12 of the PCB 3, the bottom of the PCB 3 is connected with the top of the EVA foam 4 in a laminating manner, the surface of the PCB, avoid the high cost of artifical soldering tin, high error greatly improves production efficiency.

In a further improvement, as shown in fig. 3: the surface edge symmetry of PCB board 3 is fixed with leg 10, and through-hole 14 has been seted up on plastic upper cover 1 surface, and leg 10 is arranged in through-hole 14, conveniently connects.

In a further development, as shown in fig. 6-7: the edge of PCB board 3 is provided with three and stretches out foot 11, and three spacing groove 15 has been seted up at 8 tops of aluminium bucket, stretches out foot 11 and inlays in spacing groove 15, pushes down when installation plastic upper cover 1 and stretches out foot 11, fixes PCB board 3.

In a further development, as shown in fig. 6-7: the surface of the soft-package battery core 5 is pasted with the insulating film 7, the thickness of the insulating film 7 is 0.2mm, and the insulativity is improved.

Further improved, as shown in fig. 1: the plastic upper cover 1 is fixed on the top of the aluminum barrel 8 and fixed by the countersunk head screw 6, the aluminum barrel 8 and the upper cover are fixed into a whole, and the reliability and the vibration resistance of battery fastening are improved.

Specifically, the utmost point ear of soft-packaged electrical core 5 adopts the mode of spot welding to fix on the steel sheet of PCB board 3, avoids the high cost of artifical soldering tin, and high error greatly improves production efficiency.

When the utility model is assembled, the insulating film 7 with the thickness of 0.2MM is pasted on the outer side of the soft-package battery cell 5, and the soft-package battery cell 5 pasted with the film is put into the aluminum barrel 8 with the radiating fins 9 according to the series-parallel connection sequence; the radiating fins 9 are arranged between every two soft-package battery cores 5 for separation, and sufficient expansion space is reserved between the radiating fins 9, so that the radiating effect can be increased, and meanwhile, the soft-package battery cores 5 can be fixed; after the soft-packaged cell 5 is placed into the aluminum barrel 8, attaching the EVA foam 4 with the strip hole 12 to the top surface of the soft-packaged cell 5, enabling a tab of the soft-packaged cell 5 to penetrate through the strip hole 12 of the EVA foam 4, attaching the PCB 3 to the EVA foam 4, enabling the tab of the soft-packaged cell to penetrate through the strip hole 12 of the PCB, and clamping three extending pins 11 of the PCB 3 in three corresponding limiting grooves 15 of the aluminum barrel 8; cover plastic upper cover 1, compress tightly three of PCB board 3 and stretch out foot 11 and fix a position the PCB board, countersunk screw 6 locks aluminium bucket 8 and plastic upper cover 1, and combination screw 2 is used for the lock to attach total positive bus negative pole.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a many strings list laminate polymer battery module, includes: plastic upper cover (1), soft-packaged electrical core (5), aluminium bucket (8) and PCB board (3), its characterized in that: install in aluminium bucket (8) soft-packaged electrical core (5), aluminium bucket (8) inside still is provided with a plurality of fin (9), fin (9) set up two adjacent between soft-packaged electrical core (5), the laminating of soft-packaged electrical core (5) top is connected with EVA bubble cotton (4), a plurality of rectangular hole (12) have all been seted up on EVA bubble cotton (4) and PCB board (3) surface, the utmost point ear of soft-packaged electrical core (5) passes the rectangular hole (12) of EVA bubble cotton (4) and PCB board (3), PCB board (3) bottom surface is connected with the laminating of EVA bubble cotton (4) top surface, PCB board (3) surface still is connected with XH2.5 terminal (13).

2. The multi-string single-parallel soft package battery module according to claim 1, characterized in that: the edge of the surface of the PCB (3) is symmetrically fixed with solder feet (10), the surface of the plastic upper cover (1) is provided with a through hole (14), and the solder feet (10) are arranged in the through hole (14).

3. The multi-string single-parallel soft package battery module according to claim 1, characterized in that: the edge of PCB board (3) is provided with three and stretches out foot (11), three spacing groove (15) have been seted up at aluminium bucket (8) top, it inlays in spacing groove (15) to stretch out foot (11).

4. The multi-string single-parallel soft package battery module according to claim 1, characterized in that: an insulating film (7) is pasted on the surface of the soft package battery core (5), and the thickness of the insulating film (7) is 0.2 mm.

5. The multi-string single-parallel soft package battery module according to claim 1, characterized in that: the plastic upper cover (1) is fixed on the top of the aluminum barrel (8) and is fixed by a countersunk head screw (6).

6. The multi-string single-parallel soft package battery module according to claim 1, characterized in that: and the lug of the soft package battery cell (5) is fixed on the steel sheet of the PCB (3) in a spot welding mode.