Motor controller

Abstract

The invention relates to a motor controller for leading out power terminals upward. The motor controller comprises a heat sink bottom board, a capacitor module, a power module, a drive main control PCB board, and an insulating inner cover. The capacitor module and the power module are mounted on the heat sink bottom board in parallel. The driving main control PCB board and the insulating inner cover are overlaid on the capacitor module. A positive electrode, negative electrode input and a three-phase AC output copper column are distributed in the space above the capacitor module and the powermodule. The power module AC output terminal and the three-phase output copper column are electrically connected through a copper bus. The positive electrode, negative electrode input and the three-phase AC output copper column pass through the through hole of the driving main PCB board and the insulating inner cover, so that the positive electrode, negative electrode input and the three-phase AC output terminal are led out to the upper chamber of the housing and connected with the wiring terminal of the transfer copper bus or motor. The transfer copper bus of the positive electrode and negative electrode input copper column penetrate through the electromagnetic compatibility EMC magnetic ring. According to the motor controller, the controller is small in size and integrated, and the hardware cost is reduced.

Description

technical field [0001] The invention belongs to the field of electric vehicle motor controllers, in particular to a motor controller leading out power terminals upward. Background technique [0002] The motor controller is a control component used to control the electric vehicle, drive the motor to start, run, advance and retreat, speed, and stop. It is one of the three core components of the electric vehicle. [0003] Usually, the motor controller takes the IGBT power module and the inverter controller PCB board on its upper part as the core, installs the filter capacitor module at the parallel position on the DC input side of the IGBT module, and connects the DC input side of the capacitor module and the AC output side of the IGBT module with copper bars Connect to the position of the wiring slot connected to the battery motor terminal, and at the same time connect the current sensor on the copper bar and connect the signal line to the main control circuit board PCB; for t...

AI Technical Summary

Problems solved by technology

[0004] The internal circuit structure of the motor controller is complex. The components and structural parts are loaded into the housing through the opening of the upper cover of the controller. The assembly work is difficult. The current motor controller has little room for development in the direction of small size, low cost and integration. Very big

Images