Battery box, battery box assembly and electric vehicle

Abstract

The invention provides a battery box, a battery box assembly and an electric vehicle. The battery box comprises a middle frame body and an outer frame, wherein the outer frame is provided with a firstsignal line crossing hole, a first sealing peripheral wall and first screw hole seats; the first sealing peripheral wall and the first screw hole seats both protrude outward, the first sealing peripheral wall surrounds the outer circumference of the first signal line crossing hole, and the at least two first screw hole seats are disposed on the outer circumference of the first signal line crossing hole and located on the inner circumference of the first sealing peripheral wall; the battery box assembly comprises the battery box and a controller box, wherein the controller box is provided witha second signal line crossing hole and a first sealing groove, the base of the controller box is connected to the battery box in a sealing way, the first sealing peripheral wall is inserted into thefirst sealing groove, the first signal line crossing hole communicates with the second signal line crossing hole, and the electric vehicle has the battery box assembly. The minimization of the components of the battery box assembly reduces the joints, thereby reducing the risk of water seepage and production costs.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a battery box, a battery box assembly and an electric vehicle. Background technique [0002] As the power battery of the "heart" of new energy vehicles, the safety of its packaging, encapsulation and assembly is the top priority, and the first condition to ensure safety is to meet the national external protection standard of IP67. The battery box assembly of the existing electric vehicle includes a battery box and a controller box. The battery box is provided with a first signal line hole, and the controller box is provided with a second signal line hole. Install a front cover, the first through hole of the front cover is connected with the first signal line hole; then install a signal line cover outside the controller box, the second through hole of the signal line cover is connected with the second The signal line hole is penetrated; finally, it is sealed and installed...

AI Technical Summary

Problems solved by technology

[0003] The problem existing in this kind of battery box assembly is that there are many connecting parts between the battery box and the controller box, and every two adjacent parts have joints, so the more joints, the higher the risk of water seepage. The more difficult it is to ensure the protection requirements; in addition, the increase in components increases the workload of processes such as hot riveting and screwing, prolongs the production cycle, and increases production costs.

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