Patent TW-201815037-A (TW)
Title: Single-phase induction motor capable of generating power and saving power capable of generating power, saving power, assisting in starting, and compensating for speed difference
Inventor: HUANG PO-YUAN
IPC: H02K53/00
Filed: 2016-09-26
Abstract: The present invention provides a single-phase induction motor circuit device capable of generating power, saving power, assisting in starting and Speed difference compensation. A power generation device is arranged inside the single-phase induction motor, and a power-saving device is arranged outside the single-phase induction motor, so as to jointly construct a power-generating and power-saving single-phase induction motor. The power-generating and power-saving single-phase induction motor is provided with a two-pole single-phase electromagnet stator and an iron core winding rotor. The power generation device is provided with a coil stator, and the power-saving device is provided with a voltage-boost phase-modulation circuit, an AC/DC IV conversion circuit, a voltage differentiator, a voltage control current-limiting circuit, and a power parallel-connection circuit. The power-generating and power-saving single-phase induction motor may first make use of an external AC power source to supply power to the two-pole single-phase electromagnet stator and the coil stator, so as to start the iron core winding rotor for rotation and drive the load to work (rotation to start power supply) by the effect of rotating the magnetic field. After being started to rotate, the power-generating and power-saving single-phase induction motor makes use of the electromagnetic induction effect between the coil stator and the iron core winding rotor in rotation to generate power (coil stator power generation). Through the power-saving device, the generated power cooperates with the external AC power source to supply power, so that the external AC power source can save power (reduced amount of power source for power supply). In addition, when the power-generating and power-saving single-phase induction motor is subjected to the rotation speed difference and the generated power is reduced to a specific extent, the power-generating and power-saving single-phase induction motor can makes use of the external AC power source again to supply power to the two-pole single-phase electromagnet stator and the coil stator, so as to restart the iron core winding rotor to rotate, thereby increasing the rotation speed (speed difference compensation power supply). As a result, by using the power-generating and power-saving single-phase induction motor composed of a single-phase induction motor, a power generation device (coil stator), and a power-saving device in accordance with the present invention, it is able to enable the coil stator to serve as power supply to assist the electromagnet stator in starting the rotation of the single-phase induction motor. The coil stator generates power to save the power supplied to the single-phase induction motor by the external AC power source. The coil stator also supplies power to cooperate with the electromagnet stator to compensate for the speed difference of the single-phase induction motor. With the switching power supply and power-generating and power-saving concepts of the aforementioned novel motor, it is able to achieve multiple power consumption characteristics and functions that the single-phase induction motor can assist in starting, saving power, and compensating for speed difference.