Patent TW-201735510-A (TW)
Title: Current-limiting and power-saving AC motor capable of achieving the multi-power supply function and the energy saving purpose
Inventor: HUANG PO-YUAN
IPC: H02K53/00
Filed: 2016-03-29
Abstract: The present invention relates to a motor energy-saving circuit device capable of generating power, supplying power with limited current, and changeably supplying power. A power generation device is disposed in a brush AC motor, and a power-saving device and a micro-control device are disposed on the brush AC motor for jointly constituting a current-limiting and power-saving AC motor including an NS electromagnet stator, an SN electromagnet stator, a primary coil rotator and a primary electric brush. The power generation device includes a secondary coil rotator and a secondary electric brush. The secondary and primary coil rotators share the NS electromagnet stator and the SN electromagnet stator. The power-saving device includes an adjustable boost circuit, an AC/DC IV conversion circuit, a voltage differential device, a voltage control current-limiting circuit, and an electricity joining circuit. The micro-control device includes a microprocessor and plural switches. The current-limiting and power-saving AC motor uses AC power to rotate the primary coil rotator and drive a load to work (supply power to primary coil) through the primary electric brush, the NS electromagnet stator and the SN electromagnet stator. Furthermore, the current-limiting and power-saving AC motor uses the primary coil rotator, the NS electromagnet stator and the SN electromagnet stator to rotate the secondary coil rotator, thereby generating power (secondary coil generating power). The generated electricity is provided for supplying power in coordination through the secondary electric brush and the power-saving device, thereby saving AC power supply (current-limiting power) without influencing normal operation of the load. In addition, the micro-control device can changeably control the primary and secondary electric brushes to supply power to the primary and secondary coil rotators for rotation and simultaneously drive the load to work (supply power to primary coil and supply power to secondary coil). Alternatively, the micro-control device can also changeably control only the primary electric brush to supply power to the primary coil rotator for rotation, thereby driving the load to work (supply power to the primary coil and stop supplying power to the secondary coil). As a result, with the present invention, the current-limiting and power-saving AC motor is formed by a brush AC motor, a power generation device, a power-saving device, and a micro-control device, so that the power generation device can generate and supply power to the brush AC motor in coordination with the AC power, and the power-saving device can limit current and save the AC power supply to the brush AC motor. Alternatively, the micro-control device can be changed to enhance the AC power supply to brush AC motor, and the micro-control device can be changed to supply normal AC power to the brush AC motor. With such concepts of motor power generation and power supply, current-limiting power supply, and changeable motor power supply, it is able to achieve the energy saving purpose and the multi-power supply function capable of economically supplying power, intensively supplying power, or normally supplying power.