CN210956832U

CN210956832U - Lithium battery conductive connection plate convenient to solder joint is demolishd

Info

Publication number: CN210956832U
Application number: CN201922311159.6U
Authority: CN
Inventors: 张蓥川; 孙峥; 许锋炜; 刘冯
Original assignee: Luoyang Jiexin Energy Technology Co ltd
Current assignee: Luoyang Jiexin Energy Technology Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-07-07
Anticipated expiration: 2029-12-20

Abstract

The utility model provides a lithium cell conductive connection board convenient to solder joint is demolishd, conductive connection board is the panel beating stamping workpiece, includes a plurality of welding holes that correspond with lithium cell group utmost point post the periphery in welding hole is equipped with the annular thin wall arch of cross-section for the cockscomb structure with the heart, annular thin wall arch deviates from the one side that contacts with lithium cell utmost point post, is equipped with a plurality of groovings at the bellied outside root of annular thin wall uniformly, the region that a plurality of groovings enclose is located lithium cell utmost point post welding plane within. The utility model discloses the simple extracting tool of accessible demolishs the lithium cell together with the protruding welding of annular thin wall, simultaneously, also convenient and new battery weld again. The utility model has the advantages of save time and labor, remove, the welding effect is good.

Description

Lithium battery conductive connection plate convenient to solder joint is demolishd

Technical Field

The utility model belongs to the technical field of the lithium cell technique and specifically relates to a lithium cell electrically conducts connecting plate convenient to solder joint is demolishd is related to.

Background

Lithium batteries have been widely used because of their advantages of light weight, large capacity, no memory effect, etc. The rectangular lithium battery is generally used as a power battery to be applied to the new energy electric vehicle, and before the lithium battery is put into use, a plurality of lithium batteries need to be welded in series and in parallel to achieve the voltage and energy capacity required by the new energy electric vehicle. In order to ensure the reliability of the electrical connection between the conductive connecting plate and the lithium battery pole, a commonly used connection method is laser welding. The electrically conductive connecting plate is the panel beating stamping workpiece, is equipped with a plurality of welding holes that correspond with lithium cell group utmost point post on the electrically conductive connecting plate, and laser welding machine moves along welding hole circumferencial direction, and the pore wall with the electrically conductive connecting plate welds with lithium cell utmost point post.

According to the user demand, whole lithium cell group need establish ties, or parallelly connected a lot of lithium cell, if quality problems appear in one of them lithium cell, then can influence the use of whole lithium cell group, at this moment need demolish the lithium cell that goes wrong to change a lithium cell. Because a plurality of lithium batteries and the conductive connecting plate are welded together, the single removal of one lithium battery has great difficulty. Because a plurality of lithium batteries are closely arranged, welding points cannot be twisted off by relative torsion, and can only be cut off by a grinding method. But the angle grinder is limited by space, welding points cannot be removed regularly and tidily, and the lithium battery pole is damaged. When the lithium battery is replaced, the welding holes on the conductive connecting plate are damaged, so that the lithium battery is difficult to be re-welded with the lithium battery needing to be replaced. This method is labor-consuming and laborious, and the welding effect is not good.

SUMMERY OF THE UTILITY MODEL

In order to overcome not enough in the background art, the utility model discloses a lithium cell electrically conducts connecting plate convenient to solder joint is demolishd to solve the background art the problem.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

the utility model provides a lithium cell conductive connection board convenient to solder joint is demolishd, conductive connection board is the panel beating stamping workpiece, includes a plurality of welding holes that correspond with lithium cell group utmost point post the periphery in welding hole is equipped with the annular thin wall arch of cross-section for the cockscomb structure with the heart, annular thin wall arch deviates from the one side that contacts with lithium cell utmost point post, is equipped with a plurality of groovings at the bellied outside root of annular thin wall uniformly, the region that a plurality of groovings enclose is located lithium cell utmost point post welding plane within.

Preferably, the plurality of cutting grooves are circular arc-shaped cutting grooves concentric with the welding hole, and the circular arc-shaped cutting grooves extend towards the annular thin-wall protrusion side.

Owing to adopt above-mentioned technical scheme, compare the background art, the utility model discloses following beneficial effect has:

the utility model discloses a lithium cell electrically conductive connecting plate convenient to solder joint is demolishd, the simple extracting tool of accessible demolishs the lithium cell together with the protruding welding of annular thin wall, simultaneously, also convenient and new battery weld again. The utility model has the advantages of save time and labor, remove, the welding effect is good.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged schematic view of fig. 1.

In the figure: 1. welding the hole; 2. an annular thin-walled bulge; 3. and (6) grooving.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. It should be noted that in the description of the present invention, the terms "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, but do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The utility model provides a lithium cell conductive connection board convenient to solder joint is demolishd, conductive connection board is the panel beating stamping workpiece, include a plurality of welding holes 1 that correspond with lithium cell group utmost point post the periphery of welding hole 1 is equipped with the annular thin wall arch 2 that the cross-section is the cockscomb structure with the heart, annular thin wall arch 2 deviates from the one side that contacts with lithium cell utmost point post, is equipped with a plurality of grooving 3 at the protruding 2 outside root of annular thin wall uniformly.

In this embodiment, the plurality of notches 3 are circular-arc notches concentric with the welding hole 1, and the circular-arc notches extend toward the annular thin-walled projection 2 to form gaps into which a removal tool such as a driver can be inserted. Since the annular thin-walled projection 2 is connected with the conductive connecting plate only through a plurality of relatively narrow connecting struts, the connecting struts can be easily broken by means of a disassembling tool, so that the annular thin-walled projection 2 and the lithium battery with quality problems are disassembled together. After the annular thin-wall bulge 2 is removed, a circular hole is left on the conductive connecting plate.

Because the circular port is located within the lithium cell utmost point post welding plane again, consequently when changing new lithium cell, only need to carry out simple polishing, repairment with above-mentioned circular port, just can weld again with new lithium cell.

The part of the utility model not detailed is prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lithium cell conductive connection board convenient to solder joint is demolishd, conductive connection board is the panel beating stamping workpiece, includes a plurality of welding holes (1) that correspond with lithium cell group utmost point post, characterized by: the welding method is characterized in that an annular thin-wall protrusion (2) with a sawtooth-shaped cross section is concentrically arranged on the periphery of the welding hole (1), the annular thin-wall protrusion (2) deviates from one side in contact with a lithium battery pole, a plurality of cutting grooves (3) are uniformly formed in the root of the outer side of the annular thin-wall protrusion (2), and the area surrounded by the cutting grooves (3) is located in the welding plane of the lithium battery pole.

2. The lithium battery conductive connecting plate convenient for solder joint removal as recited in claim 1, wherein: the plurality of cutting grooves (3) are arc-shaped cutting grooves concentric with the welding hole (1), and the arc-shaped cutting grooves extend towards the annular thin-wall bulge (2).