Power battery cover and its substrate

Abstract

The invention discloses a power battery cover plate and a base plate thereof. The base plate is provided with a positive pole hole and a negative pole hole respectively for passing through the positive pole and the negative pole. The upper surface of the positive pole hole and the negative pole The lower surfaces of the holes are respectively provided with square steps, and the upper surface around the hole of the negative pole is also provided with a circle of notches with an inverted triangular section. The invention also discloses a power battery cover plate, which includes a base plate. The positive pole is located on the upper surface of the base plate and is provided with a step shape that fits into a square step in the positive pole hole. The positive pole is welded to the upper surface of the base plate. The positive pole is located on the upper surface of the substrate and is provided with a positive protective plastic pad; the negative pole and the negative pole hole are electrically insulated and connected by a sealing gasket that wraps the negative pole hole, and the sealing gasket has an inverted triangle embedded in the upper surface of the substrate. Raised ring inside the notch. The invention has the advantages of increasing the safety performance and fast assembly performance of the battery.

Description

technical field [0001] The invention relates to battery accessories, in particular to a power battery cover plate and a substrate thereof which can increase the safety performance and fast assembly performance of the battery. Background technique [0002] The power battery is an important part of the new energy battery. The power battery hinders the development of new energy vehicles. Therefore, the safety and practical performance of the battery are particularly important performance parameters, and the sealing and connection effect of the power battery cover is one of them. A good sealing and connection effect can increase the safety performance of the battery and the convenience and quickness of assembling the battery into a module, etc., but the battery cover plate of the prior art is still difficult to achieve the desired effect in terms of battery safety and single battery connection. Contents of the invention [0003] In order to solve the above problems, one of the...

AI Technical Summary

Problems solved by technology

[0002] The power battery is an important part of the new energy battery. The power battery hinders the development of new energy vehicles. Therefore, the safety and practical performance of the battery are particularly important performance parameters, and the sealing and connection effect of the power battery cover is one of them. Good sealing and connection effects can increase the safety performance of the battery and the convenience and quickness of assembling the battery into a module, etc., but the battery cover of the prior art is still difficult to achieve the desired effect in terms of battery safety and single-cell connection.

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