Patent TW-202220339-A (TW)
Title: Permanent magnet synchronous motor with multilayer structure and multilstage drive capability
Inventor: HUANG PO-YUAN
IPC: H02P21/26
Filed: 2020-11-13
Abstract: The present invention relates to a novel permanent-magnet synchronous motor device for fixing the current for motor multistage torque amplification and motor multistage torque reduction, which includes a multilayer structure stator device inside a permanent-magnet motor and a multistage drive switching device outside the permanent-magnet motor to together compose a "permanent magnet synchronous motor with multilayer structure and multistage drive capability." The permanent magnet synchronous motor with multilayer structure and multistage drive capability comprises a N-pole permanent magnet, a S-pole permanent magnet, and a rotating shaft. The multilayer structure stator device comprises a tri-pole primary coil set and a plurality of tri-pole secondary coil sets. The multistage drive switching device comprises a micro-controlled switching circuit, etc. The permanent magnet synchronous motor with multilayer structure and multistage drive capability utilizes a fixed AC power (fixed current) to supply electrical power through the tri-pole primary coil set and the plurality of tri-pole secondary coil sets and utilizes an electromagnetic effect among the tri-pole primary coil set, the tri-pole secondary coil set, and S-pole permanent magnet to drive the N-pole permanent magnet and S-pole permanent magnet to rotate and utilizes the rotating shaft to drive a load for working. The permanent magnet synchronous motor with multilayer structure and multistage drive capability further employs the tri-pole primary coil set, the plurality of tri-pole secondary coil sets, and the micro-controlled switching circuit to increase intensity of the electromagnetic effect among the tri-pole primary coil set, the plurality of tri-pole secondary coil set, and the N-pole permanent magnet and the S-pole permanent magnet to further increase a rotating torque of the rotating shaft for enabling the rotating work of motor multistage amplification torque (fixed current and amplified torque for rotation), or to reduce the intensity of the electromagnetic effect among the tri-pole primary coil set, the plurality of tri-pole secondary coil sets, and the N-pole permanent magnet and the S-pole permanent magnet to further reduce the rotating torque of the rotating shaft for enabling the rotating work of motor multistage reduction torque (fixed current and reduced torque for rotation) without affecting the current flow of the fixed AC power. Thus, using the "permanent magnet synchronous motor with multilayer structure and multistage drive capability" composed of a permanent-magnet motor, a multilayer structure stator device and a multistage drive switching device according to the present invention, the multilayer structure stator device and the multistage drive switching device may enable the motor multistage amplification torque and the motor multistage reduction torque and utilize the fixed AC power to supply the power to the permanent-magnet synchronous motor. Using this novel type of multistage drive switching and multilayer structure stator and the concept of fixed AC power for power supply, the present invention may achieve the power consumption characteristics and purposes for permanent-magnet synchronous motor with fixed current and multistage amplification/reduction torque driving.