Patent TW-202232880-A (TW)
Inventor: HUANG PO-YUAN
IPC: H02P7/00
Filed: 2021-02-08
Abstract: The present invention relates to a novel brushless direct current motor electromechanical device capable of increasing and reducing a torque of a motor with a fixed current, in which a multi-layer structure stator device can be installed inside a brushless direct current motor, and a drive switching device can be installed outside the brushless direct current motor to constitute a multi-layer structure drive-switching brushless direct current motor. The multi-layer structure drive-switching brushless direct current motor is provided with an N-pole permanent magnet, an S-pole permanent magnet and a rotating shaft. The multi-layer structure stator device is provided with a three-pole primary coil set and a three-pole secondary coil set. The drive switching device is provided with a micro-control switching circuit. The multi-layer structure drive-switching brushless direct current motor can utilize a fixed direct current power source (fixed current) to supply power through the three-pole primary coil set and the three-pole secondary coil set, and the electromagnetic effects among the three-pole primary coil set, the N-pole permanent magnet and the S-pole permanent magnet may drive the N-pole permanent magnet and the S-pole permanent magnet to rotate, and a rotating shaft is used for driving a load to work. The multi-layer structure drive-switching brushless direct current motor can further employ the three-pole primary coil set, the three-pole secondary coil set and the micro-control switching circuit for enhancing the strength of the electromagnetic effect among the three-pole primary coil set, the three-pole secondary coil set, the N-pole permanent magnet and the S-pole permanent magnet so as to further increase the rotational torque of the rotating shaft to increase the torque of the motor for rotation operation (increase torque for rotation with fixed current); or, for reducing the strength of the electromagnetic effect among the three-pole primary coil set, the three-pole secondary coil set, the N-pole permanent magnet and the S-pole permanent magnet so as to further reduce the rotational torque of the rotating shaft to reduce the torque of the motor for rotation operation (reduce torque for rotation with fixed current) without affecting the current amount of the fixed direct current power source. As such, in the present invention, the multi-layer structure drive-switching brushless direct current motor is composed of a brushless direct current motor, a multi-layer structure stator device and a drive switching device, so that the multi-layer structure stator device and the drive switching device are configured to increase and reduce the torque of the motor, and supply power to the brushless direct current motor with the fixed current power supply. By using the concept of the novel drive-switching multi-layer structure stator and fixed direct current power source for power supply, the power consumption characteristic and purpose for allowing the brushless direct current motor to increase and reduce torque for driving with fixed current can be achieved.