CN210692659U

CN210692659U - Can change power battery busbar structure

Info

Publication number: CN210692659U
Application number: CN201921425007.2U
Authority: CN
Inventors: 何东甫; 张凤敏; 刘斌生
Original assignee: Fujian Scud Power Technology Co Ltd
Current assignee: Fujian Scud Power Technology Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-06-05
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a changeable power battery bus plate structure, which comprises bus plates connected with the upper end and the lower end of a power battery module, wherein the power battery module comprises a plurality of battery units, and the bus plates are respectively arranged at the outer side ends of a first bracket and a second bracket; the first bracket and the second bracket are used for fixing the battery module through clamping; the bus board comprises a basic PCB printed board and a connecting piece assembly; a plurality of connecting piece assemblies are uniformly arranged on the basic PCB printed board; and a plurality of through holes matched with the connecting piece assembly are arranged on the basic PCB printed board. The utility model discloses the various not universal performance of structure cylinder manifold to ordinary multisection series-parallel battery package cylinder manifold and connection piece improves, merges to be a plurality of connection piece subassemblies on a slice basis PCB printing board, reduces and produces line production assembly process, improves automated production performance. The connecting piece assembly is a standard assembly, so that materials and dies are reduced, and the manufacturing efficiency is improved.

Description

Can change power battery busbar structure

Technical Field

The utility model relates to a multisection battery series-parallel connection's group battery application technique field especially relates to a can change power battery busbar structure.

Background

With the great development of the new energy field, the requirement on the convenience of packaging, producing and assembling the battery products is higher and higher. However, most of the traditional cylindrical battery cores are assembled, converged and welded by adopting a plurality of busbars, the production efficiency is low, and how to optimize and improve the bottleneck in the production and assembly process of the busbars is a difficulty for a battery packaging factory.

The general cylindrical battery cell busbar is formed by stamping and bending sheet plates made of pure nickel sheets, nickel-plated steel sheets and the like, and the busbar has various shapes and poor consistency aiming at the diversity of serial and parallel arrangement of the power battery cells.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the weak point among the above-mentioned prior art and provide a simple structure, the commonality is strong, reduce to produce one kind of line production assembly process can change power battery busbar structure.

The utility model discloses a realize through following mode:

the battery pack comprises bus plates 1 connected to the upper end and the lower end of a power battery module 2, wherein the power battery module 2 comprises a plurality of battery units; the bus plates 1 are respectively arranged at the outer side ends of the first bracket 3 and the second bracket 4; first support 3 and second support 4 are through the fixed battery module 2 of block, its characterized in that: the bus board 1 comprises a basic PCB printed board 11 and a connecting piece assembly 12; a plurality of connecting sheet assemblies 12 are uniformly arranged on the basic PCB printed board 11; the base PCB printed board 11 is provided with a plurality of through holes 111 to be matched with the connecting sheet assembly 12.

Further, the tab assembly 12 includes tab spot welds 121; a connecting sheet spot welding groove 122 is formed in the connecting sheet spot welding part 121; the end part of the connecting sheet spot welding part 121 extends downwards to form a connecting sheet bending part 123, and the other end of the connecting sheet bending part 123 extends out of a connecting sheet base part 124 in the direction opposite to the connecting sheet spot welding part 121; the connection-piece base 124 is provided with a plurality of connection-piece fixed contacts 125.

Further, the connection pad fixing contact 125 fixes the connection pad assembly 12 on the base PCB printed board 11; the connecting piece spot-welded portion 121 is fitted to the through hole 111.

Further, the connecting piece spot welding groove 122 is in an i shape.

Further, the connecting plate assembly 12 may be made of materials including, but not limited to, pure nickel plate, nickel-plated steel strip, and copper strip.

The beneficial effects of the utility model reside in that: through combining a plurality of connecting piece subassemblies and basic PCB printed board and forming the cylinder manifold, reduced and produced the production assembly process, the commonality of cylinder manifold is stronger. The bus board substrate uses the basic PCB printed board, lay wiring in different modes can be carried out according to different series-parallel schemes, the diversity of the schemes is improved, the collection of the taps of the battery core monitoring wire harnesses in each group is carried out by utilizing the lay wiring scheme, the collection performance of the monitoring wire harnesses is improved, and the problems that the taps are scattered in distribution and difficult to open the circuit due to connection in the traditional scheme are solved.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic view of a bus bar structure according to the present invention;

fig. 3 is a schematic view of the structure of the connecting piece assembly of the present invention

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

a changeable power battery bus plate structure is shown in figures 1 to 3 and comprises a bus plate 1 connected to the upper end and the lower end of a power battery module 2, wherein the power battery module 2 comprises a plurality of battery units; the bus plates 1 are respectively arranged at the outer side ends of the first bracket 3 and the second bracket 4; first support 3 and second support 4 are through the fixed battery module 2 of block, its characterized in that: the bus board 1 comprises a basic PCB printed board 11 and a connecting piece assembly 12; a plurality of connecting sheet assemblies 12 are uniformly arranged on the basic PCB printed board 11; the base PCB printed board 11 is provided with a plurality of through holes 111 to be matched with the connecting sheet assembly 12.

In another embodiment of the present invention, the connecting plate assembly 12 includes a connecting plate spot-welding portion 121; a connecting sheet spot welding groove 122 is formed in the connecting sheet spot welding part 121; the end part of the connecting sheet spot welding part 121 extends downwards to form a connecting sheet bending part 123, and the other end of the connecting sheet bending part 123 extends out of a connecting sheet base part 124 in the direction opposite to the connecting sheet spot welding part 121; the connection-piece base 124 is provided with a plurality of connection-piece fixed contacts 125.

In another embodiment of the present invention, the connecting sheet fixing contact 125 fixes the connecting sheet assembly 12 on the base PCB printed board 11; the connecting piece spot-welded portion 121 is fitted to the through hole 111.

In another embodiment of the present invention, the connecting sheet spot welding groove 122 is an i-shaped groove.

In another embodiment of the present invention, the connecting sheet assembly 12 is made of materials including but not limited to pure nickel sheet, nickel-plated steel belt, and copper belt.

The bus board substrate uses the basic PCB (printed circuit board) 11, layout in different modes can be carried out according to different series-parallel schemes, the diversity of the schemes is improved, the layout scheme of the layout is utilized to collect the taps of the battery core monitoring wire harnesses in each group, the collection performance of the monitoring wire harnesses is improved, and the problems that the taps are scattered in distribution and difficult to open the circuit due to connection in the traditional scheme are solved. The connection piece assembly 12 and the basic PCB printed board 11 are matched to manufacture the bus board 1, so that the universality of the bus board 1 is improved, and more serial-parallel connection forms can be matched.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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. A changeable power battery bus plate structure comprises bus plates (1) connected to the upper end and the lower end of a power battery module (2), wherein the power battery module (2) comprises a plurality of battery units; the bus bars (1) are respectively installed at the outer side ends of the first support (3) and the second support (4); first support (3) and second support (4) are through the fixed battery module of block (2), its characterized in that: the bus bar (1) comprises a basic PCB printed board (11) and a connecting piece assembly (12); a plurality of connecting piece assemblies (12) are uniformly arranged on the basic PCB printed board (11); the basic PCB printed board (11) is provided with a plurality of through holes (111) which are matched with the connecting piece assembly (12).

2. The variable power cell bus plate structure of claim 1, wherein: the connector piece assembly (12) comprises a connector piece spot-weld (121); a connecting sheet spot welding groove (122) is formed in the connecting sheet spot welding part (121); the end part of the connecting sheet spot welding part (121) extends downwards to form a connecting sheet bending part (123), and the other end of the connecting sheet bending part (123) extends out of a connecting sheet base part (124) in the direction opposite to the connecting sheet spot welding part (121); the connecting sheet base (124) is provided with a plurality of connecting sheet fixed contacts (125).

3. The variable power cell bus plate structure of claim 2, wherein: the connecting sheet fixing contact (125) fixes the connecting sheet assembly (12) on the basic PCB printed board (11); the connecting sheet spot welding part (121) is matched with the through hole (111).

4. The variable power cell bus plate structure of claim 2, wherein: the connecting piece spot welding groove (122) is I-shaped.

5. The variable power cell bus plate structure of claim 1, wherein: the connecting sheet component (12) is made of materials including but not limited to pure nickel sheets, nickel-plated steel strips and copper strips.