Electric vehicle controller

Abstract

The invention relates to an electric vehicle controller which comprises a controller shell and an internal circuit board, wherein a signal line wiring connector, large current wiring terminals and a power semiconductor device are arranged on the circuit board; the signal line wiring connector comprises a wiring connector socket and a pluggable wiring connector plug; the wiring connector socket and the large current wiring terminals are arranged at positions close to the front side of the circuit board; a wiring box which concaves downwards is arranged on the front side of the controller shell; through holes of which the shapes and sizes correspond to those of the wiring connector socket and the large current wiring terminals are formed in the bottom of the wiring box; the wiring connector socket and the upper parts of the large current wiring terminals respectively penetrate through corresponding through holes and are positioned inside the wiring box; the wiring box is covered by a wiring box cover plate; and the signal line wiring connector and the wires of the large current wiring terminals are all led out from a side surface of the controller shell. The electric vehicle controller is not only tidy and ordered in external wiring and is attractive and graceful, but also stable to operate and safe and reliable.

Description

technical field [0001] The invention relates to an accessory part of an electric vehicle, in particular to an electric vehicle controller, belonging to the technical field of electric vehicle design. Background technique [0002] Electric vehicle (including two-wheel, three-wheel, and four-wheel electric vehicle) controllers have more control signal lines in order to realize external operations on the controller. At the same time, in order to drive the power motor of the electric vehicle, it is necessary to connect a high-power power supply line and a phase line of the motor. [0003] The traditional method of connecting control signal lines and high-power power lines or motor phase lines is as follows: weld the wires on the circuit board inside the controller, then lead the wires out of the controller, and connect them outside the controller in a wire-to-wire manner. Air docking through connectors. This original and simple connection method causes a large number of connec...

AI Technical Summary

Problems solved by technology

However, there are still some deficiencies in the current improvement scheme: (1), the signal line connector that leads out the control signal line just simply extends out of the shell, and the connector at one end of the line is inserted into the end of the welding plate, and only a simple positioning process is done , causing the connector to be easily loosened during the running vibration of the vehicle, and it is also easy to be pulled and unplugged from the outside; (2), various wire harnesses are drawn from the top of the controller, and the overall visual effect of the appearance is not good, giving People have a simple feeling, and they will also look messy

(3) The waterproofing of one end of the connection requires the use of expensive waterproof signal line connectors or glue filling, and glue filling is labor-intensive and unsightly; (4) High-power power lines and motor phase lines It is fixed with screws, but it is exposed to the installation, which is easy to short circuit and poses a safety hazard. Even if the junction box cover is added, it is obvious that it is installed later, which is not beautiful enough

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