TH19605A - Brushless induction synchronous motor with two stator. - Google Patents

Abstract

The rotor windings (33,34) that are wound on the bipolar protruding axis (31,32) respectively, and the rotor windings on adjacent protrusions on the axial direction are connected in series of diodes. (35) are connected in parallel between the rotor winding's series terminals. A large number of rotor conductors (36,37) are arranged on the periphery of the two rotor rods. Two stator (21,22) and two DC magnetic excitation coils (41,41) are arranged around to the surface of the two rotor cores.The number of poles of this stator is the same as that of the polarity. Of the rotor core and the number of poles of excitation windings are different from that of the rotor core. (25) is provided to one of the two stators, which, by selection, creates a 0 ° or 180 ° phase difference between the two rotating magnetic fields created around the bipolar protruding axis. The motor will start to spin and will accelerate according to the principle of the motor. Induction router under 0 degree phase difference and when motor rotational speed enters synchronous speed. The motor will be pulled into the operation of the Sin. It has a phase difference switched to 180 degrees and a DC magnetic excitation coil is operated. The alternating voltages are induced in the rotor coil by the static magnetic field of the coil. The DC excitation wire is rectified by the diode and the magnetic poles are made on the bipolar protruding rotor core.This motor generates a high rotation starting torque. Hence, it begins to spin in the same principle as that of conventional induction machines and thus no special starting spin is required. The actuator is rotated during a synchrony operation when the rotor winding acts as a field winding. This motor generates high torque and is less maintenance-free as with brushed motors.

Claims (2)

1. an induction synchronous motor consisting of The only rotor with the first and second protruding rotor core. These two poles are fixed on the rotor axis together. With a preset distance between them First and second rotor windings Are wound on the first and second rotor axes respectively in close order along the axial direction of the first rotor winding, and the illuminated rotor coils are connected in series of multiple diodes, each of which Will They are connected in parallel between the series terminals of the first and second rotor coils. Multiple rotor conductors are arranged on the periphery of and protrude through the first and second rotor cores. And the pair of short-circuited rings shall short-circuit both of the multiple rotor conductors on the first and second stator. Are arranged around to the first and second protruding rotor axis faces, respectively. And there will be a number of poles Equal to the first and second rotor axis. Phase voltage shift section Where, by selection, produces a phase difference of 0 degrees for the initial spin and acceleration operation, and 180 degrees for the interphase synchronous operation of the rotational magnetic field created around the rotor axis. The pole extends at one, that is, it faces the first stator. And the phase of the rotational magnetic field created around The second protruding rotor core, that is, is facing the second stator, and the DC magnetic excitation circuit is arranged so that the first and second protruding rotor cores are directed. And with a different number of poles than that of the first and second stator, the magnetic excitation circuit DC is for magnetizing at a nearby synchronous operation, along the axial direction of the first coaster winding and the second rotor winding to be opposite polarity. 2. Induction synchronous motor according to claim 1, where the roll phase shift part consists of a number of switches. Are arranged on one of the first and second stator windings for switching in the sequence connected between the neutrals. And power source lines respectively