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1. 发明授权

US4928051A Electric motor 失效
标题翻译：电动马达
公开(公告)号：US4928051A
公开(公告)日：1990-05-22
申请号：US298762
申请日：1989-01-13
申请人： Jozsef Demeter , Tibor Zoltai , Hector D. Navarro
发明人： Jozsef Demeter , Tibor Zoltai , Hector D. Navarro
IPC分类号： H02P8/42 , H02P25/02
CPC分类号： H02P8/42 , H02P25/024
摘要： An electric motor has a rotor and a stator each of which is provided with a polyphase winding. The rotor and stator have the same number of poles but the number of phases in the winding of the rotor differs from that in the winding of the stator. The motor can operate as a stepping motor by deenergizing one of the phases of one winding while simultaneously energizing one of the phases of the other winding, and the motor advances one step whenever one phase of a winding is deenergized and, at the same time, one phase of the other winding is energized. The deenergizing and energizing steps are performed alternately for each winding. The motor can further operate as a synchronous motor by accelerating the motor, discontinuing the deenergizing and energizing steps for one of the windings while maintaining the excitation of such winding and, simultaneously with the discontinuing step, reducing the frequency of the deenergizing and energizing steps for the other winding. The motor can also operate as an induction motor by accelerating the motor and then short-circuiting one of the windings.
摘要翻译：电动机具有转子和定子，每个转子和定子都设有多相绕组。转子和定子具有相同的极数，但是转子的绕组中的相数与定子的绕组中的相位数不同。电动机可以通过对一个绕组中的一个相位断电，同时给另一个绕组的一个相位通电而作为步进电机工作，并且只要绕组的一相被断电，并且电动机前进一步，另一个绕组的一相通电。每个绕组交替执行断电和激励步骤。电动机可以通过加速电动机进一步作为同步电动机进行操作，在保持这种绕组的激励的同时停止绕组中的一个的断电和激励步骤，并且与停止步骤同时降低断电和激励步骤的频率另一个绕组。电动机还可以通过加速电动机并使其中一个绕组短路作为感应电动机。

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