Sealing structure for connector of power battery

Abstract

The invention discloses a sealing structure for a connector of a power battery. The sealing structure comprises a pressing plate, a bulge part and a bulge, wherein the pressing plate and the connector are respectively jointed with the inner wall and the outer wall of a box body; the bulge part on the pressing plate penetrates through the walls of the box body and is resisted with a first sealing ring on the connector; a bolt penetrates through a mounting through hole in the connector and is matched with a threaded hole in the pressing plate; the connector is connected to the pressing plate to press the first sealing ring between the connector and the bulge part of the pressing plate, so that sealing of the connector is realized. During a connection process of the pressing plate and the connector, both sides of each of the walls of the box body bear average compressive stress provided by the pressing plate and the connector, and the pressing plate can support the walls of the box body, so that the deformation quantity of the connector in a sealing process is reduced, and furthermore, the connector is sealed through matching of the first sealing ring and the bulge part, and the surface evenness of the bulge part cannot be influenced in a process of matching of the pressing plate and the connector, so that the sealing reliability is guaranteed.

Description

technical field [0001] The invention relates to the technical field of automobile devices, in particular to a sealing structure of a power battery connector. Background technique [0002] In the prior art, the sealing of the new energy vehicle power battery connector is mainly realized by the sealing ring of the connector itself. The connector 01 is directly connected to the box body 02 to compress the sealing ring 03. In order to ensure the sealing of the sealing ring 03, it is necessary to modify the structure of the box body. The surface has high flatness, such as figure 1 As shown, the contact side of the connector 01 and the box body 02 is a planar structure, and the connector 01 and the box body 02 are directly connected by bolts. During the bolt connection process, the surface of the box body is easily deformed, resulting in the flatness of the box body surface. If the requirements cannot be met, the seal between the connector 01 and the box body 02 will fail. [00...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the sealing of the new energy vehicle power battery connector is mainly realized by the sealing ring of the connector itself. The connector 01 is directly connected to the box body 02 to compress the sealing ring 03. In order to ensure the sealing of the sealing ring 03, the box structure needs to be adjusted. The surface has a high flatness, such as figure 1 As shown, the contact side of the connector 01 and the box body 02 is a planar structure, and the connector 01 and the box body 02 are directly connected by bolts. During the bolt connection process, the surface of the box body is easily deformed, resulting in the flatness of the box body surface. Can not meet the requirements, the seal between the connector 01 and the box 02 is invalid

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