H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 15/02 (2006.01) H02K 1/24 (2006.01)
Patent
CA 2134864
ABSTRACT This invention relates to an alternator rotor and its manufacturing method, said rotor having a first rotor member on which a plurality of teeth have been formed, plus a second rotor member arranged so that its teeth are positioned in the spaces in the cylindrical surface formed by the teeth of said first rotor member. A cylindrically-shaped magnetic material is cut to match the shape of the teeth and is separated into a first rotor member and a second rotor member. A plurality of teeth is formed on the first rotor member, and teeth are formed on the second rotor member so that they are positioned in the spaces in the cylindrical surface formed by the teeth of the first rotor member. The two rotor members are mechanically joined by laying each of two rings across the tips of the teeth of one rotor member and across the bases of the teeth of the other rotor member. Given this construction and method of manufacture, rotors can be manufactured in fewer manhours, electrical efficiency can be improved by increasing the number of poles, and the incidence of defective products is decreased, which means that manufacturing yield can be increased. In addition, because the fabrication of the teeth can be automated and the welding can be performed easily from the outside, fabrication precision can be increased and quality stabilized.
Hasegawa Kouhei
Otaka Hideki
Saito Kenji
Fetherstonhaugh & Co.
Hino Jidosha Kogyo Kabushiki Kaisha
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