CN210778716U

CN210778716U - Novel battery pack with jumper wire structure

Info

Publication number: CN210778716U
Application number: CN201921524150.7U
Authority: CN
Inventors: 许乃前; 王洪波; 李�亨
Original assignee: Zhejiang Lera New Energy Power Technology Co Ltd
Current assignee: Zhejiang Lera New Energy Power Technology Co Ltd
Priority date: 2019-09-14
Filing date: 2019-09-14
Publication date: 2020-06-16
Anticipated expiration: 2029-09-14

Abstract

The utility model discloses a novel battery package with wire jumper structure relates to electric energy storage device technical field, include: the battery cell comprises a battery cell framework, a battery cell group, a circuit board, a connecting nickel sheet and a jumper wire, wherein the circuit board is arranged at the upper part of the battery cell framework; the electrodes comprise output electrodes positioned at the output ends of the anode and the cathode of the battery core group and intergroup electrodes positioned in the battery core group, and the connecting nickel sheets are fixed on the battery core framework; the connecting nickel sheet further comprises two first nickel sheets and a plurality of second nickel sheets, the first nickel sheets are used for electrically connecting the output electrodes with the circuit board, the second nickel sheets and the jumper wires are used for electrically connecting the electrodes between groups and the circuit board, two ends of the jumper wires are respectively connected with the second nickel sheets and the circuit board, and the positioning holes on the positioning columns and the first nickel sheets and the positioning holes on the second nickel sheets are matched and clamped, so that the positioning and the partial fixing of the first nickel sheets and the second nickel sheets are realized, the vibration of the first nickel sheets and the second nickel sheets is reduced, and the reliability of the welding of the first nickel sheets and the second nickel sheets and the electrodes is ensured.

Description

Novel battery pack with jumper wire structure

Technical Field

The utility model belongs to the technical field of the electric energy storage device technique and specifically relates to a novel battery package with wire jumper structure.

Background

In the prior art, battery packs used in various tools include a large number of battery cells, which must be securely and reliably mounted within a housing and in which a stable connection design is required because the battery pack may be used for high vibration loads.

In the prior art, the nickel plates are extended and bent outward along the circuit board, and are spot-welded to the battery terminals, and since the nickel plates are also used as spring elements, the circuit board is elastically mounted with respect to the battery cells or the battery cell blocks, in such a manner that additional vibration resistance can be achieved by compensating for vibrations; however, on one hand, the forming process is increased due to the need of multiple bending, and on the other hand, during severe vibration, the spot welding position of the nickel sheet and the battery terminal electrode is easy to loosen in the vibration compensation process of the nickel sheet, so that the normal use of the battery pack is affected.

SUMMERY OF THE UTILITY MODEL

First, technical problem to be solved

The utility model discloses an above-mentioned defect to prior art exists, especially provide a novel battery package with wire jumper structure, solved current battery package when violent vibration, appear nickel piece and battery electrode welding position department pine easily and take off, influence the problem of battery package normal use.

Second, technical scheme

In order to solve the technical problem, the utility model provides a novel battery package with wire jumper structure, include: the battery cell comprises a battery cell framework, a battery cell group, a circuit board, a connecting nickel sheet and jumper wires, wherein the battery cell group is fixedly arranged in the battery cell framework, the circuit board is arranged at the upper part of the battery cell framework, and electrodes are arranged at two ends of the battery cell group; the electrodes comprise output electrodes positioned at the output ends of the anode and the cathode of the battery core group and intergroup electrodes positioned in the battery core group, and the connecting nickel sheets are fixed on the battery core framework; the connecting nickel sheet also comprises two first nickel sheets and a plurality of second nickel sheets, the first nickel sheets are used for electrically connecting the output electrodes with the circuit board, the second nickel sheets and the jumper wires are used for electrically connecting the electrodes among the groups with the circuit board, and two ends of the jumper wires are respectively connected with the second nickel sheets and the circuit board, so that the welding reliability of the first nickel sheets and the electrodes as well as the welding reliability of the second nickel sheets and the electrodes are ensured.

Wherein, be equipped with spacing fixed orifices on the circuit board, the circuit board passes through spacing fixed orifices to be fixed on electric core skeleton, is equipped with at least a constant head tank on the circuit board, is equipped with the location lug corresponding with the constant head tank on the electric core skeleton, and the circuit board carries out the joint location through the cooperation of constant head tank and location lug, is equipped with a plurality of reference columns on the electric core skeleton, and the reference column is used for the location and the fixing of first nickel piece and second nickel piece.

Wherein, electricity core skeleton upper portion is equipped with the spacing groove, and the spacing groove is used for the first nickel piece of joint, and the spacing inslot still is equipped with the reference column, and the reference column is used for the location and the fixing of first nickel piece, and electricity core skeleton upper portion is equipped with connecting groove, and connecting groove is used for the welding of joint second nickel piece and wire jumper, still is equipped with the reference column in the connecting groove, and the reference column is used for the location and the fixing of second nickel piece.

The battery cell framework is provided with a jumper wire groove, the jumper wire groove is used for placing a jumper wire, the circuit board is further provided with a jumper wire extending groove, the jumper wire extending groove is used for accommodating the jumper wire, the jumper wire can be extended within a certain range under the condition that the circuit board is partially deviated, and the second nickel sheet cannot be loosened.

Wherein, all be equipped with the welding piece on first nickel piece and the second nickel piece, the welding piece is used for with electrode welded fastening.

Wherein, both ends of the cell skeleton are provided with openings, and the electrodes correspond to the openings.

Third, beneficial effect

Compared with the prior art, the battery pack realizes the positioning and partial fixing of the first nickel sheet and the second nickel sheet by matching and clamping the positioning columns and the positioning holes on the first nickel sheet and the second nickel sheet, thereby reducing the vibration of the first nickel sheet and the second nickel sheet and ensuring the welding reliability of the first nickel sheet and the second nickel sheet and the electrode;

on the other hand, the positioning groove is formed in the circuit board, the square positioning lug corresponding to the positioning groove is arranged on the cell framework, and the circuit board is clamped and positioned through the matching of the positioning groove and the positioning lug, so that the circuit board can be firmly fixed to the upper part of the cell framework and cannot deviate or separate from the cell framework, the welding firmness of the first nickel sheet and the second nickel sheet with the electrode cannot be influenced by the circuit board, and the battery pack can be normally used in a complex environment;

furthermore, a limiting groove is formed in the upper portion of the battery cell framework, and a positioning column is further arranged in the limiting groove, so that vibration of the first nickel sheet is effectively prevented; the upper part of the battery cell framework is provided with a connecting groove, and a positioning column is also arranged in the connecting groove, so that the vibration of the second nickel sheet is effectively prevented; moreover, the cell framework is also provided with a jumper wire groove, so that the jumper wire can be conveniently wired, and the disorder of a circuit is avoided;

still through still set up the wire jumper extension duct on the circuit board, can be so that under the condition that the circuit board takes place partial skew, the wire jumper can prolong in certain extent, can not produce the pine to take off to the second nickel piece.

Drawings

Fig. 1 is a perspective view 1 of a novel battery pack with a jumper wire structure according to the present invention;

fig. 2 is a perspective view 2 of a novel battery pack with a jumper wire structure according to the present invention;

fig. 3 is a structural diagram of the cell skeleton of the present invention;

FIG. 4 is a structural diagram of the connection nickel plate and the circuit board of the present invention;

in the figure: 1 is a cell skeleton; 2 is an electric core group; 3 is a circuit board; 4, connecting nickel sheets; 5 is a jumper wire; 6 is a limit fixing hole; 7 is a positioning lug; 8 is a positioning column; 9 is a limit groove; 10 is a connecting groove; 11 is a jumper groove; 12 is an electrode; 13 is a first nickel sheet; 14 is a second nickel sheet; 15 is a welding sheet; 16 is an output electrode; 17 is an intergroup electrode; 18 is a positioning groove; 19 is an opening; and 20 is a jumper extension slot.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Example 1:

the utility model discloses novel battery package with wire jumper structure, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, include: the battery cell comprises a battery cell framework 1, a battery cell group 2, a circuit board 3, a connecting nickel sheet 4 and a jumper 5, wherein the battery cell group 2 is fixedly arranged in the battery cell framework 1, the circuit board 3 is arranged at the upper part of the battery cell framework 1, and two ends of the battery cell group 2 are provided with electrodes 12; the electrodes 12 comprise output electrodes 16 positioned at the output ends of the positive electrode and the negative electrode of the cell group 2 and an intergroup electrode 17 positioned inside the cell group 2, and the connecting nickel sheet 4 is fixed on the cell skeleton 1; specifically, both ends of the cell framework 1 are provided with openings 19, the electrodes 12 correspond to the openings 19,

as shown in fig. 4, the connection nickel plate 4 further includes two first nickel plates 13 and a plurality of second nickel plates 14, the first nickel plates 13 are used for electrically connecting the output electrodes 16 with the circuit board 3, the second nickel plates 14 and the jumper 5 are used for electrically connecting the inter-group electrodes 17 with the circuit board 3, and two ends of the jumper 5 are respectively connected with the second nickel plates 14 and the circuit board 3; specifically, in the present embodiment, two first nickel sheets 13 are provided, wherein one first nickel sheet 13 is connected to the output electrode 16 of the positive electrode of the electric core set 2, i.e. the output electrode 16 of the positive electrode of the battery pack, and the other first nickel sheet 13 is connected to the output electrode 16 of the negative electrode of the electric core set 2, i.e. the output electrode 16 of the negative electrode of the battery pack, by welding the welding sheets 15 on the first nickel sheets 13 with the output electrodes 16; moreover, because the current at the output electrode 16 is large, the jumper 5 is easy to blow, so that the first nickel sheet 13 is bent to be directly connected to the circuit board 3;

still be equipped with four second nickel pieces 14 in this embodiment, intergroup electrode 17 in the electric core group 2, the anodal and the negative pole between adjacent electric core that electric core group 2 includes promptly is connected through second nickel piece 14 realization, second nickel piece 14 still with the cooperation of wire jumper 5 with intergroup electrode 17 and circuit board 3 intercommunication, specifically, wire jumper 5 one end is connected with circuit board 3, the wire jumper 5 other end and second nickel piece 14 welded fastening.

As shown in fig. 3, 2 to 3 positioning columns 8 are arranged on the cell framework 1, the positioning columns 8 are used for positioning and fixing the first nickel plate 13 and the second nickel plate 14, the positioning columns 8 are arranged on the cell framework 1 near the electrodes 12, and the positioning columns 8 can be matched and clamped with the positioning holes on the first nickel plate 13 and the second nickel plate 14, so that the positioning and partial fixing of the first nickel plate 13 and the second nickel plate 14 are realized.

As shown in fig. 4, the first nickel plate 13 and the second nickel plate 14 are both provided with a welding tab 15, and the welding tab 15 is used for welding and fixing with the electrode 12 exposed at the opening 19 to ensure that the circuit is normally connected.

Example 2:

compared with embodiment 1, in this embodiment, as shown in fig. 4, a limiting fixing hole 6 is formed in the circuit board 3, and the circuit board 3 is fixed to the cell framework 1 through the limiting fixing hole 6, and specifically, may be mounted and fixed through screw connection; on the other hand, be equipped with at least a constant head tank 18 on circuit board 3, in this embodiment, respectively be equipped with a constant head tank 18 in circuit board 3 both sides limit and a apex angle department, be equipped with the square positioning lug 7 corresponding with constant head tank 18 on the electric core skeleton 1, circuit board 3 carries out the joint location through the cooperation of constant head tank 18 with positioning lug 7, make fixing on electric core skeleton 1 upper portion that circuit board 3 can be firm, and can not the skew position or break away from electric core skeleton 1, thereby make circuit board 3 can not influence the welding fastness of first nickel piece 13 and second nickel piece 14 and electrode 12, guarantee the normal use of battery package.

Example 3:

compared with embodiment 1, in this embodiment, the upper portion of the electrical core framework 1 is provided with the limiting groove 9, the limiting groove 9 is used for clamping the first nickel plate 13, the limiting groove 9 is further provided with the positioning column 8, and the positioning column 8 is used for positioning and fixing the first nickel plate 13, so as to further limit the first nickel plate 13, thereby effectively preventing the first nickel plate 13 from vibrating.

Example 4:

compared with embodiment 1, in this embodiment, the upper portion of the electrical core framework 1 is provided with the connection groove 10, the connection groove 10 is used for clamping the second nickel plate 14 and welding the second nickel plate 14 and the jumper 5, the positioning column 8 is further arranged in the connection groove 10, the positioning column 8 is used for positioning and fixing the second nickel plate 14, the second nickel plate 14 is further limited, and vibration of the second nickel plate 14 is effectively prevented.

And still be equipped with wire jumper groove 11 on electric core skeleton 1, wire jumper groove 11 is used for placing wire jumper 5, and the wiring of wire jumper 5 of being convenient for avoids the circuit confusion.

Example 5:

compared with embodiment 4, in this embodiment, the circuit board 3 is further provided with a jumper extension slot 20, the jumper extension slot 20 is used for accommodating the jumper 5, and meanwhile, the jumper 5 can be extended within a certain range without affecting the second nickel plate 14 under the condition that the circuit board 2 is partially deviated through the jumper 5 in the jumper extension slot 20.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A novel battery pack with a jumper structure is characterized by comprising: the battery cell comprises a battery cell framework (1), a battery cell group (2), a circuit board (3), a connecting nickel sheet (4) and jumper wires (5), wherein the battery cell group (2) is fixedly arranged in the battery cell framework (1), the circuit board (3) is arranged at the upper part of the battery cell framework (1), and electrodes (12) are arranged at two ends of the battery cell group (2); the electrodes (12) comprise output electrodes (16) positioned at the positive and negative output ends of the cell group (2) and intergroup electrodes (17) positioned inside the cell group (2), and the connecting nickel sheets (4) are fixed on the cell skeleton (1);

connect nickel piece (4) and still include two first nickel pieces (13) and a plurality of second nickel piece (14), first nickel piece (13) are used for the electricity of output electrode (16) and circuit board (3) to be connected, second nickel piece (14) with jumper wire (5) are used for intergroup electrode (17) and circuit board (3) to be connected, jumper wire (5) both ends respectively with second nickel piece (14) and circuit board (3) are connected.

2. The novel battery pack with the jumper wire structure according to claim 1, wherein the circuit board (3) is provided with a limiting fixing hole (6), and the circuit board (3) is fixed on the cell framework (1) through the limiting fixing hole (6).

3. The novel battery pack with the jumper wire structure according to claim 1, wherein at least one positioning groove (18) is formed in the circuit board (3), a positioning bump (7) corresponding to the positioning groove (18) is formed in the cell framework (1), and the circuit board (3) is clamped and positioned through cooperation between the positioning groove (18) and the positioning bump (7).

4. The novel battery pack with the jumper wire structure according to claim 1, wherein a plurality of positioning columns (8) are arranged on the cell framework (1), and the positioning columns (8) are used for positioning and fixing the first nickel plate (13) and the second nickel plate (14).

5. The novel battery pack with the jumper wire structure according to claim 1, wherein a limiting groove (9) is formed in the upper portion of the cell framework (1), the limiting groove (9) is used for clamping the first nickel plate (13), a positioning column (8) is further arranged in the limiting groove (9), and the positioning column (8) is used for positioning and fixing the first nickel plate (13).

6. The novel battery pack with the jumper wire structure according to claim 1, wherein a connection groove (10) is formed in the upper portion of the cell frame (1), the connection groove (10) is used for clamping the second nickel plate (14) and welding the second nickel plate (14) and the jumper wire (5), a positioning column (8) is further arranged in the connection groove (10), and the positioning column (8) is used for positioning and fixing the second nickel plate (14).

7. The novel battery pack with the jumper wire structure according to claim 6, wherein a jumper wire groove (11) is further formed in the cell framework (1), and the jumper wire groove (11) is used for placing the jumper wire (5).

8. The novel battery pack with the jumper structure according to claim 1, wherein the first nickel plate (13) and the second nickel plate (14) are provided with welding pieces (15), and the welding pieces (15) are used for being welded and fixed with the electrode (12).

9. The novel battery pack with the jumper wire structure as claimed in claim 1, wherein the cell frame (1) is provided with openings (19) at both ends, and the electrodes (12) correspond to the positions of the openings (19).

10. The novel battery pack with the jumper structure according to claim 1, wherein the circuit board (3) is further provided with a jumper extension groove (20), and the jumper extension groove (20) is used for accommodating the jumper (5).