Patent ID: 9571015
Date: 2017-02-14
CPC Classifications: H02K,H02P

Claim:
1. A DC permanent magnet synchronous motor, comprising: a) a motor body, the motor body comprising a rotating shaft, a permanent rotor assembly, a stator assembly, and a housing assembly; the stator assembly comprising a stator core and a coil winding wound on the stator core; b) a motor controller, the motor controller comprising a first microprocessor for drive control, an inverter circuit, and a detection circuit for detecting operating parameters of the motor; the inverter circuit comprising an output end; and c) an external control card, the external control card comprising a second microprocessor for application control; wherein: the permanent rotor assembly and the stator assembly are magnetically coupled and are installed on the housing assembly; the operating parameters of the motor are input into the first microprocessor by the detection circuit; the first microprocessor outputs a PWM signal to control the inverter circuit; the output end of the inverter circuit is connected to the coil winding; the external control card is independent from the motor controller; a basic drive control part is disposed on the motor controller; an application control part is disposed on the external control card; the external control card is disposed outside the motor body; the external control card is connected to the motor body via an electric wire; and the second microprocessor and the first microprocessor are interconnected so that they can communicate.