Motor having round and angular coils
First Claim
Patent Images
1. A motor comprising:
- a stator including;
a stator core including a plurality of teeth each extending in a radial direction centered about a central axis, and arranged in a circumferential direction so as to be spaced evenly apart from one another;
a plurality of coils disposed in a plurality of slots each defined by a pair of the teeth located next to one another, and being defined by a plurality of wires electrically connected with each other and each including a portion extending in an axial direction; and
a busbar unit arranged axially above the stator core and connected to each of the plurality of wires;
whereinthe plurality of wires include an angular wire having a substantially rectangular cross section at a portion thereof corresponding to a location of the slot when viewed from one end of the axial direction and a round wire having a substantially circular cross section at a portion thereof corresponding to a location of the slot when viewed from the one end of the axial direction;
each slot includes the angular wire and the round wire arranged in the radial direction therein, and the round wire is arranged radially inward of the angular wire;
the angular wire includes a pair of straight line portions each accommodated in the slot and extending in the axial direction, and a curved connecting portion integrally connecting the pair of the straight line portions of the angular wire;
the round wire includes a pair of straight line portions each accommodated in the slot and extending in the axial direction, and a curved connecting portion integrally connecting the pair of the straight line portions of the round wire;
the connecting portions of the angular wires are curved in a direction radially away from the straight line portions of the round wires and the connecting portions of the round wires are curved in a direction radially away from the straight line portions of the angular wires; and
the connecting portions of the angular wires and the connecting portions of the round wires extend in mutually opposite radial directions.
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Accused Products
Abstract
A straight line portion of a substantially U-shaped angular wire having a substantially rectangular cross section and a straight line portion of a substantially U-shaped round wire having a substantially circular cross section are accommodated at a slot arranged at a stator of a motor. The round wire is arranged at a more radially inward portion of the slot than the angular wire is. The connecting portion of the round wire is arranged radially inwardly of the straight line portion thereof. The connecting portion of the angular wire is arranged radially outwardly of the straight line portion thereof.
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Citations
8 Claims
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1. A motor comprising:
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a stator including; a stator core including a plurality of teeth each extending in a radial direction centered about a central axis, and arranged in a circumferential direction so as to be spaced evenly apart from one another; a plurality of coils disposed in a plurality of slots each defined by a pair of the teeth located next to one another, and being defined by a plurality of wires electrically connected with each other and each including a portion extending in an axial direction; and a busbar unit arranged axially above the stator core and connected to each of the plurality of wires;
whereinthe plurality of wires include an angular wire having a substantially rectangular cross section at a portion thereof corresponding to a location of the slot when viewed from one end of the axial direction and a round wire having a substantially circular cross section at a portion thereof corresponding to a location of the slot when viewed from the one end of the axial direction; each slot includes the angular wire and the round wire arranged in the radial direction therein, and the round wire is arranged radially inward of the angular wire; the angular wire includes a pair of straight line portions each accommodated in the slot and extending in the axial direction, and a curved connecting portion integrally connecting the pair of the straight line portions of the angular wire; the round wire includes a pair of straight line portions each accommodated in the slot and extending in the axial direction, and a curved connecting portion integrally connecting the pair of the straight line portions of the round wire; the connecting portions of the angular wires are curved in a direction radially away from the straight line portions of the round wires and the connecting portions of the round wires are curved in a direction radially away from the straight line portions of the angular wires; and the connecting portions of the angular wires and the connecting portions of the round wires extend in mutually opposite radial directions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification