Armature in rotating electric machine and manufacturing method thereof
AssigneeMitsuba Corporation
InventorsYutaka Osawa, Shingo Watanabe
Life of this patent
Estimating the term…
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 6c, and twenty commentator segments 7b, a pair of coils 10 that respectively conduct an electric current to commutator segments 7b adjoining at both sides in the circumferential direction with reference to an arbitrary commutator segment 7b are caused to face permanent magnets 3, that are adjoining poles, to be poles opposite from each other, and one coil 10 is wound in a normal winding state, and the other coil 10, in a reverse winding state.
Claims24
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.
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 in slots with a predetermined number of slots therebetween out of a plurality of slots, provided side by side in a circumferential direction, conduct an electric current to adjoining commutator segments;
- and
- a yoke provided with magnetic poles,
- wherein the number of slots is half the number of commutator segments, and
- the coils are formed as pairs of coils, each pair of coils respectively conducts 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 the same poles positioned different from each other, and the respective coils being wound in the same winding direction.
A method for producing an armature of a rotary electric machine having a yoke provided with magnetic poles, comprising:
- forming a plurality of coils on an armature by winding a winding wire in slots with a predetermined number of slots therebetween out of a plurality of slots, provided side by side in a circumferential direction to conduct an electric current to adjoining commutator segments;
- providing a number of slots which are half a number of commutator segments;
- and
- forming the coils as a plurality of pairs, each pair of coils respectively conducting an electric current to commutator segments adjoining at both sides in the circumferential direction with reference to an arbitrary commutator segment,
- each pair of coils disposed so as to face opposite poles positioned different from each other, and one coil being wound so as to be in a normal winding state, with the other coil wound in a reverse winding state.
A method for producing an armature of a rotary electric machine having a yoke provided with magnetic poles, the rotary electric machine comprising:
- forming a plurality of coils on the armature by winding a winding wire in slots with a predetermined number of slots therebetween out of a plurality of slots provided side by side in a circumferential direction conduct an electric current to adjoining commutator segments,
- wherein the number of slots is half the number of commutator segments, and
- the coils are formed as a plurality of pairs, each pair of coils respectively conducts 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 disposed so as to face the same poles positioned different from each other, and each coil being wound in the same winding direction.
Dependencies are inferred from the claim text.