Patent TW-202218315-A (TW)
Inventor: HUANG PO-YUAN
IPC: H02P21/26
Filed: 2020-10-30
Abstract: The present invention relates to a novel permanent magnet synchronous motor electromechanical device that is capable of providing a fixed current for increasing a motor torque or decreasing a motor torque, in which a multiplayer-structured stator unit is arranged inside the permanent magnet synchronous motor, and a drive switching unit is arranged outside the permanent magnet synchronous motor, so as to jointly form a permanent magnet synchronous motor with multilayer structure and drive switching capability. The permanent magnet synchronous motor with multiplayer structure and switching drive capability has an N pole permanent magnet, an S pole permanent magnet, and a rotating shaft. The multilayer-structured stator unit has a triode primary coil set and a triode secondary coil set, and the drive switching unit has micro-control switching circuits. The permanent magnet synchronous motor with multilayer structure and switching drive capability applies a fixed AC power source (fixed current) to supply power through the triode primary coil set and the triode secondary coil set, so as to drive, by means of electromagnetic interaction between the triode primary coil set and the N pole permanent magnet and the S pole permanent magnet, the N pole permanent magnet and S pole permanent magnet to rotate so as to drive a load by means of the rotating shaft for working. The permanent magnet synchronous motor with multilayer structure and switching drive capability can also apply the triode primary coil set, the triode secondary coil set and the micro-control switching circuits to increase the intensity of electromagnetic interaction among the triode primary coil set and the triode secondary coil set, and the N pole permanent magnet and the S pole permanent magnet, so as to increase a rotating torque of the rotating shaft to increase a rotating torque of the motor for rotating work (fixed current and increased rotating torque rotation), or to decrease the intensity of electromagnetic interaction between the triode primary coil set and the triode secondary coil set, and the N pole permanent magnet and the S pole permanent magnet, so as to decrease the rotating torque of the rotating shaft to decrease a rotating torque of the motor for rotating work (fixed current and decreased rotating torque rotation), without influencing a flow of a fixed AC power source. Therefore, the present invention as disclosed, a permanent magnet synchronous motor with multilayer structure and switching drive capability is formed of a permanent magnet motor, a multilayer-structured stator unit and a drive switching unit so that the multilayer-structured stator unit and the drive switching unit may act for increasing a motor rotating torque, decreasing a motor rotating torque and providing power through a fixed AC power source to the permanent magnet synchronous motor, and electricity characteristics and purpose of allowing a permanent magnet motor to realize driving with increased or decreased rotating torque rotating at a fixed electric current by applying such a novel concept of drive switching multiyear structure and power supply with a fixed current.