Armature of rotary electric machine and manufacturing method thereof
AssigneeMitsuba Corporation
InventorsYutaka Osawa, Shingo Watanabe
Life of this patent
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Abstract
In a rotary electric machine, coils to be wound around an armature are wound so as to have a good magnetic balance. In a rotary electric machine formed with four poles, ten slots, and twenty commentator segments, a pair of coils that respectively conduct an electric current to the commutator segments adjoining an arbitrary commutator segment at both sides in the circumferential direction are caused to face permanent magnets, that are adjoining poles, to be poles opposite from each other, and one coil is wound in a normal winding state, and the other coil, in a reverse winding state.
Claims7
An armature of a rotary electric machine, the rotary electric machine comprising:
- an armature on which a plurality of coils are formed by winding a winding wire between two slots, having a predetermined number of slots therebetween, of a plurality of slots provided side by side in a circumferential direction of the armature to conduct an electric current to adjoining commutator segments;
- and
- a yoke provided with magnetic poles,
- wherein the number of slots are half the number of commutator segments, and
- the coils are formed as a plurality of pairs of coils, each pair of coils respectively conduct an electric current to commutator segments adjoining at both sides in the circumferential direction with reference to an arbitrary commutator segment,
- the pair of coils facing opposite poles positioned different from each other, one coil of the pair of coils being wound in a normal winding state, and the other coil of the pair of coils, in a reverse winding state.
Dependencies are inferred from the claim text.