Three-in-one motor control device integrating speed reducer, motor and controller

Abstract

The invention relates to a three-in-one motor control device integrating a speed reducer, a motor and a controller, wherein the speed reducer is fixed at one side end of the motor, and the controller comprises a shell, an IGBT, a thin-film capacitor, a PCBA-circuit board, a three-phase output copper bar, a current sensor assembly, a magnetic ring assembly, a high-voltage bus connector, a high-voltage branching connector and a signal connector. The shell comprises a box cover and a flat box body and is fixed above the motor, the high-voltage bus connector, the high-voltage branching connector and the signal connector are all fixed on the same side wall of the box body, and the IGBT, the thin-film capacitor, the PCBA-circuit board, the three-phase output copper bar, the current sensor assembly and the magnetic ring assembly are all fixed on a bottom plate in the box body, and are distributed in the shell in four rows. Compared with the prior art, the overall structure of the device is flattened, the power density is high, the space in a vehicle can be saved, the overall gravity center of the device can be lowered, and the working stability of the device is improved.

Description

technical field [0001] The invention relates to a motor controller, in particular to a three-in-one motor control device integrating a reducer, a motor and a controller. Background technique [0002] The reducer, motor, and controller of traditional new energy vehicles are arranged in a decentralized manner, and the space utilization rate is low, and the wiring harnesses of the controller and the motor are interlaced, which brings great difficulties to assembly, and the external wiring harness is easy to wear with other components , there is a risk of high voltage leakage. With the improvement of people's living standards, higher and higher requirements are put forward for space utilization. The integration of reducer, motor and controller has become a research hotspot. In the integrated design, heat dissipation, electrical connection and power connection need to be solved. The problem. Although some existing three-in-one motor control devices have been integrated, there a...

AI Technical Summary

Problems solved by technology

Although some existing three-in-one motor control devices have been integrated, there are still the following problems: 1. The internal structure of the controller is unreasonable, resulting in uncompact space layout and low power density; 2. The overall structure of the integrated device The vertical height of the volume is too large, on the one hand, it takes up too much space in the vehicle, on the other hand, the center of gravity is high, and there are hidden dangers in terms of vibration

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