Method for connecting electric vehicle battery internal and external tanks, and structure thereof

Abstract

The invention discloses a method for connecting electric vehicle battery internal and external tanks, and a structure thereof. A battery internal tank is inserted to a battery external tank in a drawer type structure manner, and is rapidly replaced and positioned through fixing by inserting a dead bolt to a lock hole; impact force generated during vehicle accelerating or braking can be alleviated through applying pre-thrust to the battery internal tank by an elastic spacing seat arranged at the inner side of the rear panel of the battery external tank; and an electrical connecting piece arranged between the battery external tank and the battery internal tank is prevented from squashing through restricting the smallest limit distance between the battery internal tank and the battery external tank by a rigid spacing table arranged at the bottom of the elastic spacing seat. A whole socket assembly and an insulation plate are used as a whole installation module, so the assembling and dismounting are convenient. The socket assembly is flexibly connected with an external cable through an adapter to guarantee the tight butt of a plug assembly and the socket assembly and make a socket connector well and stably work. Two first defense lines for dust and water prevention are possessed in the invention, so the safety and the reliability of the connector are enhanced.

Description

technical field [0001] The invention relates to a connection method and structure of an inner and outer box of an electric vehicle battery, and belongs to the technical field of electric vehicle battery replacement. Background technique [0002] Along with the improvement of people's living standards, more and more families own cars. Although cars provide convenience for people's travel, a large amount of vehicle exhaust emissions have caused relatively large pollution to the atmosphere. Therefore, electric vehicles have become the target of people's attention. [0003] At present, the main difficulty in the development of electric vehicles is not only the cruising distance of electric vehicles, but also an important factor that needs to be solved, the problem of battery replacement. [0004] When changing batteries, the reliability of the battery connection plays a crucial role in the operational safety of electric vehicles. The battery outer box is installed on the elect...

AI Technical Summary

Problems solved by technology

[0005] At present, the connection components on electric vehicles are basically planar connections. The planar connector mainly squeezes the working surfaces of the battery inner box and the battery outer box together through the action of elastic force. The two are flexibly connected without forming a Rigid as a whole, when the external force generated by the bumping and inertial extrusion of the electric vehicle acts on the connecting components, relative motion or friction will occur between the planar connectors, and in severe cases, the connectors will be separated instantly, resulting in a virtual connection. For high-voltage electrodes, it is very easy to generate discharge phenomenon, causing the electrodes to burn, which seriously affects the normal operation of the vehicle

Because there is no good dustproof and waterproof measures for plane connection, there will be dust or adhesive moisture between the connectors, and discharge may occur at any time, causing partial or overall burning of the connected components and affecting the normal operation of the entire vehicle

In addition, the existing planar connection mainly adopts a decentralized connection method, the installation size is large, and the relative position between the connection components is difficult to ensure, which brings certain difficulties to the processing and is not conducive to the standardization of production and installation.

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