Power battery cover plate and substrate thereof

Abstract

The invention discloses a power battery cover plate and a substrate thereof. A positive pole hole and a negative pole hole through which a positive pole and a negative pole pass are formed in the substrate respectively; square steps are formed on the upper surface of the positive pole hole and the lower surface of the negative pole hole respectively; a circle of nick with an inverted triangular section is further formed on the peripheral upper surface of the negative pole hole. The invention further discloses a power battery cover plate which comprises the substrate. A step embedded into the square step in the positive pole hole in a matching way is formed on the upper surface of the substrate for the positive pole; the positive pole is welded together with the upper surface of the substrate; the positive pole is sleeved with a positive pole protection rubber cushion on the upper surface of the substrate; the negative pole and the negative pole hole are connected with each other in an electrically insulated way through a sealing gasket wrapping the positive pole hole; the sealing gasket is provided with a convex ring embedded into the inverted triangular nick on the upper surface of the substrate. The power battery cover plate and the substrate have the advantages of improving the safety performance of batteries and realizing rapid assembly.

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...

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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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