Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1996-12-26
1999-02-23
LaBalle, Clayton
Electrical generator or motor structure
Dynamoelectric
Rotary
310 49R, 310166, 310179, 310181, 310184, 310185, 310198, 310254, H02K 1910
Patent
active
058747958
ABSTRACT:
A multi-phase permanent-magnet type electric rotating machine comprising: a permanent magnet type rotor, the permanent magnet type rotor including pairs of magnetic bodies magnetized by an axially magnetized cylindrical permanent magnet and disposed so as to face each other in a manner so that different poles of the magnetic bodies are disposed alternately or including a cylindrical permanent magnet having a multi-polar-magnetized outer circumferential surface; and a stator disposed so as to face the rotor through an air gap therebetween, the stator having 6N or 10N (N being an integer not smaller than 1) main poles formed in a distributed fashion, the stator having coils wound on 3N or 5N in total of the 6N or 10N main poles selected every other one, wherein the coils wound on the 3N or 5N main poles are connected so as to form a star connection and at least one of the three or five terminals of the star connection of the coils is connected to a predetermined polarity of a power supply while all or part of the other terminals of the star connection are connected to the same opposite polarity of the power supply, whereby the polarity of one of the three or five terminals of the star connection is reversed sequentially by driving so that the rotor is made to rotate step by step.
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Enad Elvin G.
Japan Servo Co., LTD
LaBalle Clayton
LandOfFree
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