A Combined Multi-tooth Stator Core Hybrid Excitation Switched Flux Motor

Abstract

The invention relates to a combined type multi-tooth stator iron hybrid field switch flux motor which is characterized by comprising a stator core tooth module, a stator core yoke module, a rotor core, an armature winding, magnetic steel, a field winding and the like. The stator core tooth module is of a multi-tooth structure; the magnetic steel, the field winding and the armature winding are arranged on the stator core tooth module; the stator core tooth module and the stator core yoke module are in sequential combined arrangement along the circumference direction to form a switch flux motor stator; a switch flux motor rotor is only provided with a rotor iron core. The multi-tooth type structure can reduce output torque pulse of the motor; by controlling the direction and the amplitude of the input current of the field winding, motor overload and flux weakening raising speed can be adjusted; a cooling liquid circulation system is arranged to perform uniform cooling and heat radiation on the motor, so that the stability and robustness of the motor are improved, and the combined type multi-tooth stator iron hybrid field switch flux motor has obvious advantages when being applied to the field of servo direct driving of electromechanical devices.

Description

technical field [0001] The invention belongs to the field of servo direct drive motors for electromechanical equipment, in particular to a combined multi-tooth stator core hybrid excitation switch flux motor. Background technique [0002] The direct drive of modern electromechanical equipment using AC servo motor can effectively improve the working efficiency and operation accuracy of the equipment. The existing AC servo motor is generally designed as a rotor permanent magnet motor structure. Long-term load operation and vibration environment are easy to cause damage, and the heat generated by the eddy current in the magnet is difficult to dissipate, which is easy to cause irreversible demagnetization of the magnet. The switched flux motor is a permanent magnet motor in which the magnetic steel is installed on the motor stator. The motor rotor only has a magnetic core, and the structure is very robust. The magnetic steel and armature windings on the motor stator The generat...

AI Technical Summary

Problems solved by technology

But at the same time, the existing switched flux motors have problems such as winding off-line difficulties, large output torque fluctuations, and difficult adjustment of the excitation magnetic field, which make it difficult to apply them to servo direct drives of electromechanical equipment.

Images