Manufacturing method of stator, and stator
AssigneeAsmo Co., Ltd.
InventorsKazushi Sugishima, Akihiro Suzuki
Life of this patent
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Abstract
In a state in which a first divisional core and a second divisional core are arranged in a state spaced from each other and adjacent to each other, a first coil and a second coil are each wound around a tooth. The first coil and the second coil are in the same phase. In a state in which a plurality of divisional cores are arranged annularly so that their teeth are oriented in a radially inward direction, the first divisional core and the second divisional core are not adjacent to each other in the circumferential direction. A plurality of connection wires are shaped to converge at an end surface of a stator core. This facilitates the winding of the coils around the divisional cores. Further, the connection wires can be shortened.
Claims20
A method for manufacturing a stator including a plurality of teeth and a plurality of coils that are wound around the plurality of teeth, wherein the plurality of coils form at least one phase, the manufacturing method comprising:
- preparing a plurality of divisional cores, wherein each divisional core has a tooth, the plurality of divisional cores include a first divisional core and a second divisional core, and the first divisional core and the second divisional core are not adjacent to each other in the circumferential direction when the plurality of divisional cores are arranged annularly so that corresponding teeth are oriented in a radially inward direction;
- arranging the first divisional core and the second divisional core in a state spaced from and adjacent to each other;
- winding a first coil around the tooth of the first divisional core in a concentrated winding;
- winding a second coil around the tooth of the second divisional core in a concentrated winding, wherein the first coil is connected to the second coil by a connection wire, the first coil and the second coil are included in the plurality of coils, and the first coil and the second coil are in the same phase;
- forming a stator core so that the plurality of teeth extend radially, wherein the plurality of divisional cores are arranged annularly in a state in which the coils are wound around the divisional cores, the stator core defines an axial direction, and the stator core has an end surface intersecting the axial direction;
- and
- shaping the connection wire to converge at the end surface of the stator core.
A method for manufacturing a stator including a plurality of teeth and a plurality of coils wound around the plurality of teeth, wherein the plurality of coils form at least one phase, the manufacturing method comprising:
- preparing a plurality of divisional cores, with each divisional core having a tooth, and the plurality of divisional cores include a first divisional core and a second divisional core;
- arranging the first divisional core and the second divisional core in a manner spaced from and adjacent to each other;
- winding a first coil around the tooth of the first divisional core in a concentrated winding;
- winding a second coil around the tooth of the second divisional core in a concentrated winding, wherein the first coil is connected to the second coil by a connection wire, the first coil and the second coil are included in the plurality of coils, and the first coil and the second coil are in the same phase;
- forming a stator core by annularly arranging the plurality of divisional cores in a state in which the coils are wound around the divisional cores, wherein the plurality of teeth are arranged radially in a radially inward direction, the first divisional core and the second divisional core are arranged not to be adjacent to each other in the circumferential direction in the stator core, the stator core defines an axial direction, and the stator core has an end surface that intersects with the axial direction;
- and
- shaping the connection wire to converge at the end surface of the stator core.
Dependencies are inferred from the claim text.