Wire connecting structure and wire connecting method of three-phase motor, and three-phase motor
AssigneeNidec Sankyo Corporation
InventorNaoya Isaji
Life of this patent
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Abstract
Provided is a wire connecting structure of coils of a three-phase motor, a wire connecting method and three-phase motor, which is capable of reducing a size of a short circuit terminal for a neutral point. The wire connecting structure is a wire connecting structure of coils which are wound to each salient-pole in a three-phase motor having respective salient-pole of a U phase, a V phase and a W phase, the coils of the salient-poles belonging to any two phases among the U phase, the V phase and the W phase are formed by a single continuous first conducting wire, and the coil of the salient-pole belonging to the rest one phase is formed by a single continuous second conducting wire.
Claims9
A wire connecting structure, which is the wire connecting structure of coils wound to each salient-pole in a three-phase motor having respective salient-pole of a first phase, a second phase and a third phase, wherein
- the coils of the salient-poles belonging to any two phases among the first phase, the second phase and the third phase are formed by a first conducting wire, wherein the first conducting wire is a single continuous wire, and
- the coil of the salient-pole belonging to a rest one phase among the first phase, the second phase and the third phase is formed by a second conducting wire, wherein the second conducting wire is another single continuous wire,
- wherein the coils of the salient-poles formed by the first conducting wire comprise a coil of a first salient-pole, a coil of a second salient-pole, a coil of a third salient-pole and a coil of a fourth salient-pole, wherein the first conducting wire is sequentially wound around the first salient-pole, the second salient-pole, the third salient-pole and the fourth salient-pole, and the coils of the salient-poles are disposed in a circumferential direction with equal intervals in a sequence of the first salient-pole, the third salient-pole, the second salient-pole and the fourth salient-pole.
A wire connecting method, which is the wire connecting method of coils wound to each salient-pole in a three-phase motor having respective salient-pole of a first phase, a second phase and a third phase, comprising:
- a first process, in which a first conducting wire is used to continuously wind the coils of the salient-poles belonging to any two phases among the first phase, the second phase and the third phase, wherein the first conducting wire is a single continuous wire;
- and
- a second process, in which a second conducting wire is used to wind the coil of the salient-pole belonging to the rest one phase among the first phase, the second phase and the third phase, wherein the second conducting wire is another single continuous wire,
- wherein the coils of the salient-poles formed by the first conducting wire comprise a coil of a first salient-pole, a coil of a second salient-pole, a coil of a third salient-pole and a coil of a fourth salient-pole, wherein the first conducting wire is sequentially wound around the first salient-pole, the second salient-pole, the third salient-pole and the fourth salient-pole, and the coils of the salient-poles are disposed in a circumferential direction with equal intervals in a sequence of the first salient-pole, the third salient-pole, the second salient-pole and the fourth salient-pole.
Dependencies are inferred from the claim text.