Motor, commutator, short-circuit member, and a method for...

Details Motor, commutator, short-circuit member, and a method for... Motor, commutator, short-circuit member, and a method for...

2006-10-30

2009-10-20

Nguyen, Hanh N. (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

07605516

ABSTRACT:
A commutator connected to armature coils includes circumferentially arranged segments, short-circuit conductors, and a surge absorbing element. The number of the segments is a multiple of the number of the armature coils. The segments include a plurality of pairs of segments. The segments in each pair are adjacent to each other in the circumferential direction. Each segment in each pair is connected to one of the ends of corresponding one of the armature coils. The number of the short-circuit conductors is the same as the number of the armature coils. Each short-circuit conductor short-circuits segments that are at the same potential to each other. Each short-circuit conductor is connected, either directly or via corresponding one of the segments, to the surge absorbing element, so that the surge absorbing element is electrically interposed between the ends of each armature coil.

REFERENCES:
patent: 5473212 (1995-12-01), Crook et al.
patent: 5796203 (1998-08-01), Wang
patent: 6285109 (2001-09-01), Katagiri et al.
patent: 6731041 (2004-05-01), Furuya et al.
patent: 2005/0264126 (2005-12-01), Lee
patent: 2005-005293 (2005-01-01), None
patent: 2005-137193 (2005-05-01), None

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