Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1996-07-16
1998-01-13
Labelle, Clayton E.
Electrical generator or motor structure
Dynamoelectric
Rotary
310180, 310263, 310208, 310254, H02K 304, H02K 112
Patent
active
057083169
ABSTRACT:
In an alternator for a vehicle having field coils for generating rotating magnetic field and stator coils for generating alternating current voltages in response to the rotating magnetic field, each of three stator coils are wound on only one of three stator teeth provided equi-angularly in a two pole-pitch of the rotor so that coil ends of the stator coils exposed outside the stator teeth do not cross each other. Thus, all the coil ends are cooled equally by the cooling air and a temperature rise of the stator coils is minimized. In order to reduce magnetic noise the stator coils are grouped. The first group of coils are provided in contact with a stator core and a second group of coils. The first and second group of coils are shifted from each other by .pi./3 radian in electrical angle.
REFERENCES:
patent: 4356419 (1982-10-01), Boer et al.
patent: 5013953 (1991-05-01), Odell
patent: 5260620 (1993-11-01), Morrill
patent: 5343105 (1994-08-01), Sakabe et al.
patent: 5394041 (1995-02-01), Oberdorfer-Bogel
Labelle Clayton E.
Link Jonathan
Nippondenso Co. Ltd.
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