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US 10,763,718 B2Granted
Stator core and method for manufacturing the same
AssigneeSisin Aw Co., Ltd.
InventorsKiyotaka Koga, Shingo Hashimoto, Shingo Sato
Life of this patent
Estimating the term…
Abstract
In this stator core, the interval in the circumferential direction of the stator core between an outer peripheral surface of an axial end of a slot accommodated portion of a concentric coil and a tooth facing the outer peripheral surface is larger than the interval in the circumferential direction of the stator core between an inner peripheral surface of the axial end and a tooth facing the inner peripheral surface.
Claims12
A stator, comprising:
- a stator core including a plurality of teeth and a plurality of slots each located between adjacent ones of the teeth;
- and
- a concentric coil formed by concentrically winding a rectangular wire and placed in the slots of the stator core, wherein
- an interval in a circumferential direction of the stator core between an outer peripheral surface of an axial end of a slot accommodated portion of the concentric coil about a winding center of the concentric coil and the tooth facing the outer peripheral surface is larger than an interval in the circumferential direction of the stator core between an inner peripheral surface of the axial end of the slot accommodated portion of the concentric coil about the winding center of the concentric coil and the tooth facing the inner peripheral surface,
- an interval in the circumferential direction between the concentric coil and the tooth facing an outer peripheral surface of the concentric coil decreases from an axial end of the slot toward an axial middle portion of the slot,
- the interval in the circumferential direction between the concentric coil and the tooth facing the outer peripheral surface of the concentric coil gradually decreases from the axial end of the slot toward the axial middle portion of the slot, and then increases toward a vicinity of the axial middle portion of the slot.
3 more elements
A stator, comprising:
- a stator core including a plurality of teeth and a plurality of slots each located between adjacent ones of the teeth;
- d
- a concentric coil formed by concentrically winding a rectangular wire and placed in the slots of the stator core, wherein
- an interval in a circumferential direction of the stator core between an outer peripheral surface of an axial end of a slot accommodated portion of the concentric coil about a winding center of the concentric coil and the tooth facing the outer peripheral surface is larger than an interval in the circumferential direction of the stator core between an inner peripheral surface of the axial end of the slot accommodated portion of the concentric coil about the winding center of the concentric coil and the tooth facing the inner peripheral surface;
- an insulating member placed between the slot and the concentric coil, wherein
- the inner peripheral surface of the axial end is in contact with the insulating member, and
- the axial end and the tooth facing the inner peripheral surface of the axial end are separated by an interval in the circumferential direction which corresponds to a thickness of the insulating member;
- and
- a fixing agent that fills between the axial end of the slot accommodated portion and the tooth facing the outer peripheral surface of the axial end and between the axial end of the slot accommodated portion and the tooth facing the inner peripheral surface of the axial end.
6 more elements
Dependencies are inferred from the claim text.