CN219163633U

CN219163633U - Series-parallel connection plate with gasket for lithium ion battery

Info

Publication number: CN219163633U
Application number: CN202223463696.0U
Authority: CN
Inventors: 杨瑞; 韦俊红
Original assignee: Henan Nengchi Power Co ltd
Current assignee: Henan Nengchi Power Co ltd
Priority date: 2022-12-25
Filing date: 2022-12-25
Publication date: 2023-06-09
Anticipated expiration: 2032-12-25

Abstract

The utility model provides a add pad lithium ion battery series-parallel connection board, including insulation board and busbar, the busbar is aluminium bar or copper bar, the busbar laminating is riveted on the upper surface of insulation board, turn over behind the insulation board to the busbar and with busbar fixed connection, the busbar includes the pole busbar, paste one deck gasket on the lower surface of pole busbar, the gasket is nonrust steel sheet or is galvanized iron sheet, be provided with the utmost point post that is used for connecting the wire at the tip of pole busbar, the utmost point post runs through nonrust steel sheet and pole busbar in proper order, the utmost point post is pressed and is riveted or welded on the gasket, the utmost point post is screw or nut. Through set up stainless steel sheet gasket at the busbar lower surface for utmost point post passes through welt and pole busbar fixed connection, makes the difficult deformation of pole busbar, has increased the structural strength between utmost point post and the pole busbar, improves the qualification rate of product.

Description

Series-parallel connection plate with gasket for lithium ion battery

Technical Field

The utility model relates to a battery assembly, in particular to a serial-parallel connection plate of a lithium ion battery with a gasket.

Background

The total positive and total negative bus copper bars and aluminum bars of the serial-parallel connection plates of the lithium ion battery are even combined, a screw threaded leading-out structure is selected for design, no matter the structural design of a stud structure or a nut is adopted, the ductility of the copper, aluminum or the combined conductive bars is good, the material is soft, no matter the materials are hard or conventional semi-hard or medium-hard, the torque force 15N which can be maximally born by the press-riveting screw or the nut is high, the contact surface is easy to deform, the contact surface is small, the overall conductivity of the battery pack is seriously influenced, the fatal problem that rotation cannot be repaired easily occurs in the conventional mounting or dismounting process, the whole battery pack is required to be disassembled after repair, time and labor are wasted, and the battery is easy to damage.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a series-parallel connection plate with a gasket for a lithium ion battery, and aims to improve the structural strength between the series-parallel connection plate and a stud or a nut.

The utility model provides a add spacer lithium ion battery cluster parallel board, includes insulation board and busbar, the busbar laminating is in on the upper surface of insulation board, turn over behind the insulation board to the busbar and with busbar fixed connection, the busbar includes the pole busbar paste one deck gasket on the lower surface of pole busbar, the gasket is stainless steel sheet or is galvanized iron sheet the tip of pole busbar is provided with the utmost point post that is used for connecting the wire, the utmost point post runs through in proper order gasket and pole busbar, the utmost point post is pressed and is riveted or welded on the gasket, the utmost point post is screw or nut.

The method further comprises the following steps: the pole busbar comprises an integrally connected tab connecting portion and a pole connecting portion, the width of the pole connecting portion is larger than that of the tab connecting portion, the gasket is matched with the tab connecting portion and the pole connecting portion, and the pole is located in the middle of the pole connecting portion.

The method further comprises the following steps: an acquisition wire welding table is integrally arranged on the side edge of the pole connecting part, and an acquisition wire welding hole is formed in the acquisition wire welding table.

The method further comprises the following steps: the lower extreme integration of utmost point post is provided with annular boss, annular boss inlays to be established in the lower surface of gasket, annular boss the bottom surface with the lower terminal surface of utmost point post flushes and with the lower surface of gasket flushes.

The utility model has the beneficial effects that: through set up stainless steel sheet gasket at busbar lower surface for the utmost point post passes through gasket and pole busbar fixed connection, makes the difficult deformation of pole busbar, has increased the structural strength between utmost point post and the pole busbar, strengthens spiro union torsion, reduces the conductive bar deformation coefficient, improves fastening reliability and improves repeatedly dismantles the use number of times, improves the qualification rate of product.

Drawings

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic view of the assembled front cross-sectional structure of the stainless steel sheet, insulating plate, pole busbar and pole according to the present utility model;

FIG. 3 is a right side cross-sectional schematic view of the assembled stainless steel sheet, insulating plate, pole busbar and pole in the present utility model.

1. An insulating plate; 2. pole buss bars; 21. a tab connection part; 22. a pole connection portion; 3. a pole; 31. an annular boss; 4. collecting wire welding holes; 5. a gasket.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings. Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. The terms left, middle, right, upper, lower, etc. in the examples of the present utility model are merely relative concepts or references to the normal use state of the product, and should not be construed as limiting.

A padded lithium ion battery serial-parallel connection plate is shown in fig. 1 and comprises an insulating plate 1 and a bus bar, wherein the bus bar is an aluminum bus bar or a copper-nickel bus bar, the bus bar is attached to and pressure-riveted on the upper surface of the insulating plate 1, a tab of a battery passes through the insulating plate 1 and then turns back to the bus bar to be fixedly connected with the bus bar, the bus bar comprises a pole bus bar 2, the pole bus bar 2 refers to a total positive bus bar or a total negative bus bar, a layer of spacer 5 is attached to the lower surface of the pole bus bar 2, the spacer 5 is a stainless steel sheet or a galvanized iron sheet, a pole column 3 for connecting wires is arranged at the end part of the pole bus bar 2, the pole column 3 sequentially penetrates through the spacer 5 and the pole bus bar 2, the pole column 3 is pressure-riveted or welded on the spacer 5, and the pole column 3 is a screw or a nut. According to the utility model, the thickness of the bus bar is 1 mm-2 mm, the thickness of the gasket 5 is smaller than that of the bus bar, and the thickness of the gasket 5 is 0.5 mm-1 mm.

The pole busbar 2 is generally located between two lugs, because the distance between two lugs is less, the width of pole busbar 2 then can be corresponding very narrow, for the structural strength between convenient pole 3 and pole busbar 2 that sets up on pole busbar 2 and assurance pole 3, pole busbar 2 includes lug connecting portion 21 and pole connecting portion 22 that the integration is connected, the width of pole connecting portion 22 is greater than the width of lug connecting portion 21, gasket 5 with lug connecting portion 21 and pole connecting portion 22 phase-match, pole 3 is located the middle part of pole connecting portion 22. As shown in fig. 1, in order to facilitate connection of the collecting wire to the tab busbar, a collecting wire welding table is integrally provided on the side of the tab connection portion 22, and a collecting wire welding hole 4 is formed on the collecting wire welding table.

After the pole 3 is connected with the pole busbar 2, the pole busbar 2 is still attached to the insulating plate 1, so that stability between the pole busbar 2 and the insulating plate 1 is guaranteed, an annular boss 31 is integrally arranged at the lower end of the pole 3, the annular boss 31 is embedded in the lower surface of the gasket 5, and the bottom surface of the annular boss 31 is flush with the lower end surface of the pole 3 and the lower surface of the gasket 5. To increase the connection effect of the pads 5 and the pole bus bars 2, the pads 5 and the pole bus bars 2 are welded or glued.

The working principle of the utility model is as follows: the lugs of the battery pass through the insulating plate 1 and then are folded onto corresponding bus bars to be connected in series and parallel, and then the positive electrode lead and the negative electrode lead of the battery are respectively connected onto corresponding pole posts 3, so that the rapid wiring of the positive electrode and the negative electrode of the battery is realized.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a lithium ion battery series-parallel connection board with gasket, includes insulation board and busbar, its characterized in that: the busbar laminating is riveted on the upper surface of insulation board, the busbar includes the pole busbar paste one deck gasket on the lower surface of pole busbar, the gasket is stainless steel sheet or for galvanized iron sheet the tip of pole busbar is provided with the utmost point post that is used for connecting the wire, the utmost point post runs through in proper order gasket and pole busbar, the utmost point post is riveted or welded on the gasket, the utmost point post is screw or nut.

2. The padded lithium ion battery serial-parallel connection plate of claim 1, wherein: the pole busbar comprises an integrally connected tab connecting portion and a pole connecting portion, the width of the pole connecting portion is larger than that of the tab connecting portion, the gasket is matched with the tab connecting portion and the pole connecting portion, and the pole is located in the middle of the pole connecting portion.

3. The padded lithium-ion battery serial-parallel plate of claim 2, wherein: an acquisition wire welding table is integrally arranged on the side edge of the pole connecting part, and an acquisition wire welding hole is formed in the acquisition wire welding table.

4. The padded lithium ion battery serial-parallel connection plate of claim 1, wherein: the lower extreme integration of utmost point post is provided with annular boss, annular boss inlays to be established in the lower surface of stainless steel piece, annular boss the bottom surface with the lower terminal surface of utmost point post flushes and with the lower surface of gasket flushes.