Battery pack box body, battery pack and automobile

Abstract

The invention provides a battery pack box body which comprises: a box main body provided with an opening; a cover plate which covers and seals the opening of the box main body and comprises a plate main body and a skirt edge integrally connected with the edge of the plate main body, wherein a segment difference is formed between the plate main body and the skirt edge, and the skirt edge is fixed with the edge of the opening of the box main body; a runner plate which is arranged on the side, back to the box body, of the plate body, wherein a groove channel is formed in the inner surface, facing the plate body, of the runner plate, the groove channel comprises two end channel bodies and a body channel body connecting the two end channel bodies, the plate body and the body channel body are matched to form a main cooling pipeline, and the two end part channels extend out of the cover plate; and a sealing plate which is clamped between the plate main body and the runner plate, wherein one end of the sealing plate extends out of the cover plate to be matched with the two end part channels to respectively form a liquid inlet pipeline and a liquid outlet pipeline, and the liquid inlet pipeline and the liquid outlet pipeline are respectively provided with a liquid inlet and a liquid outlet. The invention further provides a battery pack and an automobile.

Description

technical field [0001] The present application relates to the technical field of heat dissipation, and in particular to a battery pack case, a battery pack and an automobile. Background technique [0002] In the prior art, the cold plate of the battery pack is placed above the package body, and at the same time acts as a sealing cover for the entire package body. The edge of the cold plate should be made into a flange surface to provide space for bolts / rivets to prevent the head of the bolt / rivet from exceeding the size range of the enclosure in the Z direction, and the inlet and outlet of the cold plate must be placed outside the enclosure to save internal space , simplify the structure and reduce the cost; however, the channel of the cold plate must sink synchronously with the edge of the flange to meet these conditions. If the channel of the cold plate does not sink, there will be a height difference between the two, which will cause flow The channel cannot be airtight. ...

AI Technical Summary

Problems solved by technology

The edge of the cold plate should be made into a flange surface to provide space for bolts / rivets to prevent the head of the bolt / rivet from exceeding the size range of the enclosure in the Z direction, and the inlet and outlet of the cold plate must be placed outside the enclosure to save internal space , simplify the structure and reduce the cost; however, the channel of the cold plate must sink synchronously with the edge of the flange to meet these conditions. If the channel of the cold plate does not sink, there will be a height difference between the two, which will cause flow The channel cannot be sealed. However, if the channel needs to be sunk along with the edge of the flange, the channel needs to be punched, which will easily lead to deformation of the channel and make the channel unreliable.

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