CN218351629U - Soft packet of lithium cell PACK structure - Google Patents

Abstract

The utility model discloses a PACK structure of a soft package lithium battery, which comprises a plurality of soft package lithium batteries arranged in parallel, a jumper plate connected with a lug of each soft package lithium battery, and a lithium battery box body which is adaptive to the soft package lithium batteries and is used for clamping the soft package lithium batteries; the lithium battery box body comprises two end plates which are respectively arranged in the direction of the lugs of the soft-package lithium battery and a side plate connected with the end plates; the middle part of the end plate is provided with a hollow cavity for accommodating the jumper sheet; and a female guide interface and a male guide interface are arranged on the end plate. The utility model discloses a soft packet of lithium cell PACK structure, the structure is small in quantity, simple structure, and is with low costs, can satisfy under the majority circumstances to soft packet of lithium cell demand in groups.

Description

Soft packet of lithium cell PACK structure

Technical Field

The utility model belongs to the technical field of the lithium cell, concretely relates to soft packet of lithium cell PACK structure.

Background

The lithium battery system has the advantages of high working voltage, high power, high energy density, long cycle life, environmental friendliness and the like, and is widely applied to the industries of automobiles, ships, airplanes, even national defense war industry and the like. In recent years, the development of the new energy automobile industry is particularly rapid, and a lithium battery system becomes a main power source of the new energy automobile.

The lithium battery PACK generally refers to an assembled battery, and mainly refers to the processing and assembly of a lithium battery PACK. However, the processing and assembling structure is complex, so that the requirement of grouping lithium batteries is difficult to realize, and further the production cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a soft packet of lithium cell PACK structure, the structure is small in quantity, simple structure, and is with low costs, can satisfy under the majority condition demand in groups to soft packet of lithium cell.

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

a PACK structure of a soft package lithium battery comprises a plurality of soft package lithium batteries arranged in parallel, a jumper connected with a tab of each soft package lithium battery, and a lithium battery box body which is matched with the soft package lithium batteries and used for clamping the soft package lithium batteries;

the lithium battery box body comprises two end plates which are respectively arranged in the direction of the pole lugs of the soft-package lithium battery and a side plate connected with the end plates; the middle part of the end plate is provided with a hollow cavity for accommodating the jumper sheet;

and a female guide interface and a male guide interface are arranged on the end plate.

The female guide interface and the male guide interface are symmetrically arranged at the end parts of two sides of the end plate; towards soft packet of lithium cell is the reference standard, the left side of end plate sets up female direction interface, the right side of end plate sets up positive direction interface.

The end plate deviates from one side end of the soft package lithium battery is provided with an insulating panel.

The insulating panel and the end plate are insulating structural bodies.

The side plates are connected with the end plates through a quick dismounting structure.

The quick dismounting structure comprises a crimping nut arranged at the joint of the side plate and the end plate and a countersunk screw matched with the crimping nut.

The jumper is made of copper.

And the jumper plate is connected with the lug of the soft package lithium battery through laser welding.

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

the utility model provides a soft packet of lithium cell PACK structure, the structure is small in quantity, simple structure, and the processing cost is low, can satisfy under the majority circumstances to soft packet of lithium cell demand in groups.

The both sides tip of end plate is provided with cloudy direction interface and positive direction interface, towards soft packet of lithium cell is the reference standard, the left side of end plate sets up cloudy direction interface, the right side of end plate sets up positive direction interface. The PACK structure of each soft package lithium battery is provided with two pairs of symmetrical female and male guide interfaces, the expansion capacity is strong after the female and male guide interfaces are grouped, the assembly process is easy, the PACKs can mutually support after being grouped, and the structural strength is high; that is, reliable grouping of the cell stack can be realized through the female and male guide interfaces.

The insulating panel and the end plate are insulating structural bodies, which can effectively prevent people from mistakenly contacting, reduce the electric arc phenomenon possibly generated in the high-voltage discharge process, provide guarantee for the use safety after high-voltage grouping,

the soft package lithium cell passes through the jumper connection piece, can realize the electricity after PACK is in groups and connect, and all positive and negative interfaces of PACK after in groups all are in the coplanar, connect easy operation, use reliably.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below 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 creative efforts.

Fig. 1 is a schematic structural diagram of a PACK structure of a soft package lithium battery of the present invention;

fig. 2 is a schematic structural view of the flexible package lithium battery PACK structure of the present invention with an insulation panel removed;

in the figure, 1-soft package lithium battery; 2-jumper plate; 3-an end plate; 4-side plate; 5-a female guide interface; 6-male guide interface; 7-an insulating panel; 8-countersunk head screw.

Detailed Description

The following description of the present invention will be made with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations according to the common technical knowledge and conventional means in the field are included in the scope of the present invention without departing from the technical spirit of the present invention.

Reference is made in combination to fig. 1 and fig. 2, the utility model provides a soft packet of lithium cell PACK structure, its structure is small in quantity, simple structure, and the processing cost is low, can satisfy under the majority condition to soft packet of lithium cell demand in groups. The soft package lithium cell PACK structure includes a plurality of soft package lithium cell 1 that set up side by side, soft package lithium cell 1's quantity can be increased and decreased according to concrete voltage, capacity requirement.

And a lug of the soft package lithium battery 1 is connected with a jumper plate 2. The tab of the soft package lithium battery 1 is a component of a soft package lithium ion battery product; the battery is divided into a positive electrode and a negative electrode, and the tabs are metal conductors leading out the positive electrode and the negative electrode from the battery core. Namely, the two side ends of the positive electrode and the negative electrode of the soft-package lithium battery 1 are respectively provided with a jumper plate 2 connected with the pole lugs of the soft-package lithium battery 1; the jumper plate 2 is connected with the pole lug of the soft package lithium battery 1 through laser welding. The jumper 2 is a copper jumper, preferably a nickel-plated copper jumper.

A plurality of soft packet of lithium cell 1 outsides that set up side by side are provided with the lithium cell box, the lithium cell box is used for pressing from both sides a plurality of soft packet of lithium cells 1 of dress, and its shape size with soft packet of lithium cell 1 looks adaptation.

The lithium battery box body comprises two end plates 3 which are respectively arranged in the lug direction of the soft package lithium battery 1, and the middle part of each end plate 3 is provided with a hollow cavity for accommodating the bridging piece 2.

A female guide interface 5 and a male guide interface 6 are arranged at the end parts of the two sides of the end plate 3, so that the female guide interface 5 is arranged on the left side of the end plate 3 and the male guide interface 6 is arranged on the right side of the end plate 3 by taking the end parts facing the soft-package lithium battery 1 as a reference datum; due to the arrangement, each soft package lithium battery PACK structure is provided with two pairs of mutually symmetrical male and female guide interfaces, the expansion capacity is high after the male and female guide interfaces are grouped, the assembly process is easy, the PACKs can mutually support after the grouping, and the structural strength is high; that is, reliable grouping of the cell stack can be realized through the female and male guide interfaces.

Four side plates 4 are arranged between the two end plates 3, and the space formed by the end plates 3 and the side plates 4 is used for clamping the soft package lithium battery 1. The side plate 4 is connected with the end plate 3 through a quick-dismounting structure; the quick dismounting structure comprises a plurality of crimping nuts arranged at the joint of the side plate 4 and the end plate 3, and countersunk head screws 8 matched with the crimping nuts. In this embodiment, the crimping nuts are correspondingly arranged at the joints of the side plates 4 and the end plates 3, and 6 countersunk head screws 8 are correspondingly arranged. For the weight that alleviates soft packet lithium cell PACK structure, in this embodiment, one of them the area of curb plate 4 is less than other three the area of curb plate 4, and this the curb plate 4 is connected adjacently on the curb plate.

End plate 3 deviates from soft packet of lithium cell 1's a side end is provided with insulating panel 7. Insulating panel 7 with end plate 3 is the insulating structure body, can effectively prevent personnel's mistake contact, has reduced the electric arc phenomenon that probably produces among the high-voltage discharge process, provides the guarantee for the high pressure safety in utilization after in groups. In this embodiment, the insulation panel 7 and the end plate 3 are connected by a quick-release structure, and the quick-release structure is the same as the quick-release structure connecting the side plate 4 and the end plate 3.

It is right above the utility model provides a soft packet lithium battery PACK structure introduces in detail, and it is right to have used specific individual example herein the utility model discloses a structure and theory of operation have explained, and the explanation of above embodiment is only used for helping to understand the utility model discloses a method and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a soft packet lithium cell PACK structure which characterized in that: the soft package lithium battery comprises a plurality of soft package lithium batteries (1) which are arranged in parallel, a jumper (2) connected with a tab of each soft package lithium battery (1), and a lithium battery box body which is matched with each soft package lithium battery (1) and is used for clamping the soft package lithium batteries (1);

the lithium battery box body comprises two end plates (3) which are respectively arranged in the direction of the lugs of the soft-package lithium battery (1), and a side plate (4) connected with the end plates (3); the middle part of the end plate (3) is provided with a hollow cavity for accommodating the jumper (2);

the end plate (3) is provided with a female guide interface (5) and a male guide interface (6).

2. The flexible package lithium battery PACK structure of claim 1, wherein: the female guide interface (5) and the male guide interface (6) are symmetrically arranged at the end parts of two sides of the end plate (3); towards soft packet of lithium cell (1) is the reference standard, the left side of end plate (3) sets up cloudy direction interface (5), the right side of end plate (3) sets up positive direction interface (6).

3. The soft package lithium battery PACK structure of claim 2, wherein: the end plate (3) deviates from one side end part of the soft package lithium battery (1) is provided with an insulating panel (7).

4. The soft package lithium battery PACK structure of claim 3, wherein: the insulating panel (7) and the end plate (3) are both insulating structures.

5. The flexible package lithium battery PACK structure of claim 1, wherein: the side plates (4) are connected with the end plates (3) through a quick-dismounting structure.

6. The soft package lithium battery PACK structure of claim 5, wherein: the quick dismounting structure comprises a crimping nut arranged at the joint of the side plate (4) and the end plate (3), and a countersunk screw (8) matched with the crimping nut.

7. The soft package lithium battery PACK structure of claim 1, wherein: the jumper (2) is made of copper.

8. The soft package lithium battery PACK structure of claim 7, wherein: the jumper plate is connected with the lug of the soft package lithium battery (1) through laser welding.

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