CN209947905U

CN209947905U - Square aluminum-shell battery module of extension

Info

Publication number: CN209947905U
Application number: CN201920842531.3U
Authority: CN
Inventors: 熊刚庭; 沈海博; 程宝利; 程军华; 黄夏亮; 孔卫忠; 尹世飞; 熊亚昆
Original assignee: JIANGXI GANFENG BATTERY TECHNOLOGY Co Ltd
Current assignee: Jiangxi Ganfeng Lienergy Technology Co Ltd
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-01-14
Anticipated expiration: 2029-06-05

Abstract

The utility model discloses a square aluminum hull battery module of extension, including end plate, middle end plate, end plate insulating piece, curb plate insulating piece, electric core subassembly, connecting row, output row, pencil division board, module upper cover, pencil protecting cover, adapter, visor. This module design is that use end plate, curb plate, end insulating piece, side insulating piece and electric core direct laminating extrusion to carry out laser welding in groups again and in groups, carry out busbar laser welding busbar at last and accomplish the assembly. The square battery module is simple in structure and convenient to install, and the end plates, the battery cell assembly and the middle end plate are stacked and extruded by the tool, so that the stability of the module is guaranteed; the insulating adapter on the end plate fixes the output row, so that the battery module is safer in actual use; the protective cover is buckled on the adapter, so that the safe distance between the module wire harness and the inner wall of the box body is ensured; increase the pencil protecting cover, avoid the pencil to appear puncturing the risk, improve the security performance.

Description

Square aluminum-shell battery module of extension

Technical Field

The utility model relates to a new forms of energy power battery field, more specifically says, the utility model relates to a square aluminum hull battery module of extension.

Background

As a new clean energy, the lithium ion power battery has the advantages of high energy density, good safety, light weight, long cycle life and the like, and is widely applied to an energy storage system in a new energy automobile. Especially in the field of energy storage of electric automobiles, lithium ion power batteries have become the preferred battery type.

However, the energy provided by a single battery is limited, and in order to meet the electric energy demand potential of an electric vehicle power battery system or a national grid energy storage battery system, a plurality of single batteries are necessarily connected in series and/or in parallel to form a group, and then the battery modules are connected in series and/or in parallel to reach a certain voltage or current level and capacity level to meet the demand of people. The quality and efficiency of battery system grouping techniques will greatly affect the life and safety of the battery system to meet sufficient power requirements in a limited space.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a square aluminum hull battery module of extension.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a square aluminum-shell battery module of extension, includes and encloses the square frame who establishes and form by two end plates and two blocks of curb plates, two blocks of curb plates between still be equipped with the middle end plate that is on a parallel with the end plate, middle end plate divides into two spaces that hold electric core subassembly with the square frame internal partitioning, be equipped with the switching seat of fixed output row on the end plate of square frame both sides, it walks the line to have the visor protection pencil to detain on the switching seat, the top of square frame is equipped with the module upper cover, cover on the module and be equipped with the pencil protecting cover, the pencil protecting cover is in the same place with module upper cover welding.

The end plate is a thick aluminum plate structure consisting of a plurality of spaced cavities from top to bottom, so that the quality of the module is reduced, and the heat dissipation performance of the module is improved.

The middle end plate and the end plate have the same structure or size and are positioned in the middle of the two electric core assemblies.

The battery cell assembly comprises 6 VDA battery cells, and the battery cell assembly comprises two groups which are respectively arranged at two sides of the middle end plate.

Two sets of electric core subassembly both ends are laminated by two end plate insulating pieces respectively, end plate insulating piece is 148mm long, and wide 94mm, thick 0.3 mm.

The two side plates are made of thin aluminum plate materials, the inner walls of the two side plates are respectively attached by a side plate insulating sheet, and the side plate insulating sheets are 359mm long, 115mm wide and 0.12mm thick.

The curb plate is hollow out construction, hollow out construction is 8 evenly distributed's elliptical structure, has promoted both sides heat dissipation fever.

The upper end of the battery cell component is provided with a separation plate, and the separation plate is provided with a connecting bar connected with a battery cell electrode; the electric core subassembly side is output row for output power, and output row sets up respectively in the module both sides, avoids the pencil too concentrated and arouse the potential safety hazard when one side.

The upper end of the left side of the end plate is provided with the adapter, the adapter is provided with two raised screw structures, and the output row can be more stably fixed by the aid of the structure, so that the safety is higher when bumping conditions are met in actual application.

The adapter and the protective cover are fastened with each other, and the protective cover and the module upper cover are fixed through rivets, so that a safe distance is kept between a wiring harness and the side wall of the box body when the wiring harness passes through the protective cover, and the wiring harness is prevented from being damaged due to friction in use; the pencil protecting cover of module upper cover up end is hollow T post type structure, and in the in-service use condition, the pencil protecting cover can guarantee the wiring and neatly arrange, and protection pencil safety can control moreover and appear, very big having made things convenient for walking the line demand in the in-service use.

This module has: 1. the end plates, the electric core assembly and the middle end plate are extruded by a stacking tool, so that the stability of the module is ensured; 2. the insulating adapter on the end plate fixes the output row, so that the battery module is more stable in the bumpy condition; 3. the protective cover is buckled on the adapter, so that the safety distance between the wiring harness connected with the output row and the inner wall of the box body is ensured, and the safety of the whole battery system is improved; 4. the wire harness protecting cover is added, so that the wire harness is prevented from being punctured, the risk is reduced, and the safety performance is improved.

Drawings

Fig. 1 is an exploded view of embodiment 1 of the present invention.

Fig. 2 is a schematic view of the installation position of the middle end plate in embodiment 1 of the present invention.

Fig. 3 is a schematic view of the installation of the protective cover according to embodiment 1 of the present invention.

Fig. 4 is a schematic view of the assembly of embodiment 1 of the present invention.

Wherein the reference numerals are as follows:

101 end plate 102 middle end plate 103 end plate insulating sheet 104 side plate

105 side plate insulating sheet 106 core assembly 107 connecting row 108 output row

109 division board 110 module upper cover 111 pencil protecting cover 112 adapter

113 protective cover

Detailed Description

In order to make the technical means, technical features, objects and effects realized by the present invention easily understood and appreciated, the present invention will be further described with reference to the following specific drawings and examples.

Example 1:

the utility model provides a square power battery module structure of extension, includes end plate 101, middle end plate 102, end plate insulating piece 103, curb plate 104, curb plate insulating piece 105, electric core subassembly 106, run-on 107, output row 108, division board 109, module upper cover 110, pencil protecting cover 111, adapter 112, visor 113. The two end plates 101, the two side plates 104 and the middle end plate 102 are enclosed to form a square frame body, and two electric core assemblies 106 can be accommodated in the square frame body; the end plate 101 is a thick aluminum plate structure consisting of a plurality of spaced cavities from top to bottom, and the upper side end of the end plate 101 is provided with an adapter 112 matched with the end plate; the middle end plate 102 has the same structure or size as the end plate 101; the cell assembly 106 consists of six VDA cells, the two sides of the cell assembly 106 are respectively attached by end plate insulating sheets 103, the upper end of the cell assembly 106 is provided with an insulating plate 109, the electrodes of the cell assembly 106 are connected by a connecting bar 107, and the side ends of the cell assembly 106 are respectively provided with an output bar 108; the side plates 104 are made of thin aluminum plate materials, eight uniformly distributed elliptical hollow structures are arranged on the surfaces of the side plates 104, and a side plate insulation sheet 105 is attached to each inner wall of each side plate 104; the square frame body is provided with a module upper cover 110, the upper end face of the module upper cover 110 is provided with a wiring harness protective cover 111, and protective covers 113 are arranged on the edges of two sides of the module upper cover 110 and fixed with the module upper cover 110 through rivets.

Example 2

The difference between the elongated square aluminum shell module of the present embodiment and the embodiment 1 is that the present embodiment is a specific assembly step of the module:

1. the two ends of the electric core assembly 106 are pasted with the end plate insulating sheets 103, and the side plate insulating sheets 105 are pasted on the side plates 104;

2. the end plate 101, the middle end plate 102 and the electric core assembly 106 pasted with the end plate insulating sheet 103 are placed in a stacking tool for extrusion;

3. placing the side plate 104, and attaching the side plate 104 and the end plate 101 left and right;

4. laser penetration welding is carried out on the joint of the end plate 101, the middle end plate 102 and the side plate 104;

5. the adapter 112 is buckled into the end plate 101, the isolation plate 109 is arranged on the electric core assembly 106, and then the connecting row 107 and the output row 108 are arranged;

6. the joint of the connecting bar 107, the output bar 108 and the cell pole is welded by laser penetration;

7. the module upper cover 110, the harness cover 111, and the protective cover 113 are fastened by a snap or rivet.

Claims

1. The utility model provides a square aluminum-shell battery module of extension which characterized in that: include and enclose the square frame who establishes and form by two end plates (101) and two curb plates (104), two curb plates (104) between still be equipped with middle end plate (102) that is on a parallel with end plate (101), middle end plate (102) separate into two spaces that hold electric core subassembly (106) with square frame internal portion, be equipped with adapter (112) of fixed output row (108) on end plate (101) of square frame both sides, it walks the line to have covered visor (113) protection pencil on the adapter, square frame's top is equipped with module upper cover (110), be equipped with pencil protecting cover (111) on module upper cover (110), pencil protecting cover (111) and module upper cover (110) welding are in the same place.

2. The elongated prismatic aluminum cell module of claim 1, wherein the end plate (101) is a thick aluminum plate structure comprised of a plurality of spaced cavities from top to bottom.

3. The elongated prismatic aluminum cell module of claim 1, wherein the middle end plate (102) is the same structural size as the end plate (101) and is positioned in the middle of the two cell assemblies (106).

4. The elongated prismatic aluminum cell battery module of claim 3, wherein said cell assembly (106) is comprised of 6 VDA cells, and two sets of said cell assemblies (106) are placed on each side of said middle header (102).

5. The elongated prismatic aluminum cell module of claim 4, wherein the two sets of cell assemblies (106) are attached at the left and right ends by two end plate insulating sheets (103), respectively.

6. The elongated prismatic aluminum cell module of claim 1, wherein the two side plates (104) are made of thin aluminum plate material, and the inner walls of the two side plates are respectively attached by a side plate insulation sheet (105).

7. The elongated square aluminum-shell battery module according to claim 6, wherein the side plates (104) are hollowed-out structures, and the hollowed-out structures are 8 uniformly distributed elliptical cavities.

8. The elongated square aluminum cell module according to claim 4, wherein a separator (109) is disposed at an upper end of the cell assembly (106), and the separator (109) is provided with a connecting bar (107) connected to the cell electrodes; the side end of the electric core assembly (106) is an output row (108) for outputting electric power.

9. The elongated prismatic aluminum cell module of claim 1, wherein said adapter (112) has two raised screw configurations.

10. The elongated square aluminum cell module according to claim 9, wherein the adapter (112) and the protective cover (113) are fastened to each other, and the protective cover (113) and the module upper cover (110) are fixed by rivets; the wiring harness protecting cover (111) on the upper end face of the module upper cover (110) is of a T-shaped structure, and the T-shaped structure is of an internal hollow structure.