CN221978121U - Double-side pole-discharging lug soft package electric core module - Google Patents

Abstract

The utility model relates to the technical field of battery cell modules, and in particular to a double-sided tab soft-pack battery cell module. It includes a number of battery cell support modules connected in series, end plates arranged on the front and rear sides of the battery cell support module, insulating sheets arranged on the left and right sides of the battery cell support module, and positive and negative tabs arranged on the end plates on both sides and connected to the battery cell support module. The battery cell support module includes a battery cell support and a number of battery cells placed in the battery cell support. The benefits of the utility model: the technical solution reinforces the module by arranging support rods on both the upper and lower sides to prevent the module from sagging, and tightly combines the battery cell and the battery cell support into a whole. The module is firm as a whole and will not sag or loosen in the middle, which greatly improves the product reliability. At the same time, insulating sheets are arranged on the tab side of the module to insulate and protect both sides of the module.

Description

Double-sided tab soft-pack battery module

Technical Field

The utility model relates to the technical field of battery modules, and in particular to a double-sided tab soft-package battery cell module.

Background Art

Electrochemical cells are mainly cylindrical, square, and soft-pack in shape. The cells generate heat during charging and discharging. In order to extend the service life of the cells, it is particularly important to efficiently dissipate the heat generated by the cells.

At present, the main forms of heat dissipation for industrial and commercial energy storage on the market are liquid cooling and air cooling. Soft-pack batteries are divided into single-sided output tabs and double-sided output tabs.

In the prior art, all the cells and brackets are fixed by end plates at both ends of the module. In practical applications, the module is generally long, and the middle part of the module will sag, which is not conducive to the use of the module.

Therefore, it is necessary to design a double-sided tab soft-pack battery cell module to solve the above problems.

Utility Model Content

The purpose of the utility model is to provide a double-sided output tab soft-package battery cell module to overcome the above-mentioned deficiencies in the current prior art.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A double-sided output pole ear soft-pack battery cell module, comprising a plurality of battery cell holder modules connected in series, end plates arranged on the front and rear sides of the battery cell holder module, insulating sheets arranged on the left and right sides of the battery cell holder module, and positive and negative pole ears arranged on the end plates on both sides and connected to the battery cell holder module, characterized in that: the battery cell holder module comprises a battery cell holder, a plurality of battery cells placed in the battery cell holder, a battery cell installation cavity is arranged in the middle of the battery cell holder, partitions for separating the battery cells are also arranged between the cavities, bus bars are arranged on both sides of the battery cell holder, the battery cell holder and the battery cell holder are connected through the bus bars, positioning pins and positioning holes are respectively arranged at the four corners of the upper and lower surfaces of the battery cell holder, and are arranged diagonally in pairs, and support rod limiting claws are arranged on both sides of the battery cell holder, and the battery cell holder is fixed by the support rod passing through the support rod limiting claws.

Preferably, a busbar groove and a busbar locking hole are provided on the busbar.

Preferably, insulating blocks that play an insulating and protective role are provided at the positive and negative electrode ears, and the insulating blocks are fixed on the end plates.

Preferably, the battery cell support is provided with a top ventilation slot and a bottom ventilation slot on the upper and lower sides respectively, and its structure is in an H-shape.

Preferably, the support rod includes plate surfaces arranged on both sides, the plate surfaces are used for being installed in cooperation with the limiting claws of the battery cell holder, and holes and grooves are arranged at both ends of the support rod.

The beneficial effects of the utility model are as follows: the technical solution reinforces the module by arranging support rods on both the upper and lower sides to prevent the module from sagging, and tightly combines the battery cell and the battery cell bracket into a whole. The module as a whole is firm and will not sag or loosen in the middle, thereby greatly improving product reliability. At the same time, insulating sheets are arranged on the module ear side to insulate and protect both sides of the module.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a double-sided tab-out soft-pack battery module of the present invention;

FIG2 is an internal schematic diagram of a double-sided tab-out soft-pack battery cell module of the present invention;

FIG3 is a diagram showing the series connection of a cell support module of a double-sided tab-out soft-pack cell module according to the present invention;

FIG4 is a schematic diagram of a cell support of a double-sided tab-out soft-package cell module of the present invention;

FIG5 is a schematic diagram of a support rod of a double-sided tab-out soft-pack battery cell module of the present invention;

In the figure: 1. battery cell bracket module; 2. end plate; 3. insulating sheet; 4. positive and negative ears; 5. insulating block; 11. battery cell bracket; 12. battery cell; 13. heat sink; 14. battery cell mounting cavity; 15. partition; 16. bus; 17. bus slot; 18. bus locking hole; 19. positioning pin; 191. positioning hole; 111. top ventilation slot; 112. bottom ventilation slot; 113. support rod limit claw; 6. support rod; 61. plate surface; 62. hole slot.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

Referring to Figures 1 to 5, a double-sided tab-out soft-pack battery module comprises a plurality of battery support modules 1 connected in series, end plates 2 arranged on the front and rear sides of the battery support module, insulating sheets 3 arranged on the left and right sides of the battery support module, and positive and negative tabs 4 arranged on the end plates on both sides and connected to the battery support module;

For better safety, insulating blocks 5 for insulation and protection are required to be provided at the positive and negative tabs, and the insulating blocks are fixed on the end plates.

The battery cell bracket module 1 includes a battery cell bracket 11 and a plurality of battery cells 12 placed in the battery cell bracket; two groups of battery cells are installed in each group of battery cell brackets, and the two groups of battery cells are welded through aluminum bars to form a module; and a heat sink 13 is installed on one side of the battery cell, and a hole groove is opened on the heat sink for installation with a positioning pin.

A cell mounting cavity 14 is provided in the middle of the cell holder 11, and a partition 15 for separating the cells is provided between the cavities. Bus bars 16 are provided on both sides of the cell holder, and bus bar grooves 17 and bus bar locking holes 18 are provided on the bus bars. The cell holders are connected to each other through the bus bars; the cell holder includes at least two cavities for fixing the cells, which are separated by partitions.

Positioning pins 19 and positioning holes 191 are respectively arranged at the four corners of the upper and lower surfaces of the battery holder, and are arranged diagonally in pairs. This facilitates serial connection and positioning. When installing in series, the positioning pins of the battery holder correspond to the positioning holes of the adjacent battery holders to achieve rapid positioning;

The cell support is provided with a top ventilation slot 111 and a bottom ventilation slot 112 on the upper and lower sides, respectively, and its structure is in an H-shaped shape;

Support rod limiting claws 113 are provided on both side edges of the battery cell holder 1. In order to effectively fix the battery cell holder, the battery cell holder is fixed by passing the support rod 6 through the support rod limiting claws. The support rod 6 includes plate surfaces 61 provided on both sides, and the plate surfaces are used for cooperating with the limiting claws of the battery cell holder for installation. Holes 62 are provided at both ends of the support rod, and the hole grooves are connected to the corresponding holes on the end plates for fixing.

In this implementation case, two groups of battery cells are installed in a battery cell holder, and the two battery cells are first welded through an aluminum busbar to form a battery cell holder module, thereby forming a string. The above steps are followed for assembly, the assembled battery cell holder modules are connected in series, and quickly positioned and installed through positioning pins and positioning holes. When connecting in series, heat sinks are added to dissipate the heat generated by the battery cells. All battery cells and holders are fixed at both ends of the module through end plates, and each string is connected through a bus bar. After the assembly and connection, each group of battery cell holder modules are fixed in series through the support rod limit claws through the support rod. The setting of the support rod, on the one hand, overcomes the sagging in the middle of the module, and on the other hand, locks the holder and the end plate.

The benefits of the utility model are that the technical solution reinforces the module by arranging support rods on both the upper and lower sides to prevent the module from sagging, and tightly combines the battery cell and the battery cell bracket into a whole. The module is firm as a whole and will not sag or loosen in the middle, which greatly improves product reliability. At the same time, insulating sheets are arranged on the module ear side to insulate and protect both sides of the module.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims (5)

1. A double-sided tab-output soft-package battery cell module, comprising a plurality of battery cell support modules connected in series, end plates arranged on the front and rear sides of the battery cell support module, insulating sheets arranged on the left and right sides of the battery cell support module, and positive and negative tabs arranged on the end plates on both sides and connected to the battery cell support module, characterized in that: the battery cell support module comprises a battery cell support, a plurality of battery cells placed in the battery cell support, a battery cell installation cavity is arranged in the middle of the battery cell support, a partition plate for separating the battery cells is also arranged between the cavities, bus bars are arranged on both sides of the battery cell support, the battery cell support and the battery cell support are connected through the bus bars, positioning pins and positioning holes are respectively arranged at the four corners of the upper and lower surfaces of the battery cell support, and are arranged diagonally in pairs, and support rod limiting claws are arranged on both sides of the battery cell support, and the battery cell support is fixed by the support rod passing through the support rod limiting claws. 2. A double-side tab soft-package battery cell module according to claim 1, characterized in that a busbar groove and a busbar locking hole are provided on the busbar. 3. A double-sided tab soft-pack battery cell module according to claim 1, characterized in that insulating blocks that play an insulating and protective role are provided at the positive and negative tabs, and the insulating blocks are fixed on the end plates. 4. A double-sided tab soft-package battery cell module according to claim 1, characterized in that: the upper and lower sides of the battery cell bracket are respectively provided with a top ventilation groove and a bottom ventilation groove, and the structure thereof is in an H-shape. 5. A double-sided output tab soft-package battery cell module according to claim 1, characterized in that: the support rod includes plate surfaces arranged on both sides, the plate surfaces are used to cooperate with the battery cell bracket limiting claws for installation, and holes are arranged at both ends of the support rod.