Stator assembly of hairpin winding motor and manufacturing method thereof
AssigneeHyundai Mobis Co., Ltd.
InventorsYong Ho KIM, Hyoung Geun PARK
Life of this patent
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Abstract
A stator assembly includes hairpin coils continuously connected along a circumferential direction to form a coil winding, a plurality of stator cores disposed along the circumferential direction and configured to fix the hairpin coils, and a support ring configured to surround an outer circumferential surface of the stator core, wherein each of the stator cores is inserted into the hairpin coils forming the coil winding in a radial direction.
Claims18
A stator assembly of a hairpin winding motor comprising:
- hairpin coils continuously connected along a circumferential direction to form a coil winding;
- a stator core configured to fix the hairpin coils;
- and
- a support ring configured to surround an outer circumferential surface of the stator core,
- wherein:
- the hairpin coils and the stator core are inserted in a radial direction;
- and
- the stator core includes a yoke formed of a magnetic material to form a magnetic path, teeth protruding in a radial direction from an inner circumferential surface of the yoke, a plurality of coil slots formed between the plurality of teeth and into which the hairpin coils are inserted, and shoes configured to extend in a circumferential direction from both side surfaces of end portions of the teeth.
A stator assembly of a hairpin winding motor comprising:
- hairpin coils continuously connected along a circumferential direction to form a coil winding;
- a plurality of stator cores disposed along the circumferential direction and configured to fix the hairpin coils;
- and
- a support ring configured to surround an outer circumferential surface of the stator core,
- wherein:
- each of the stator cores includes a yoke formed of a magnetic material to form a magnetic path;
- and
- the yoke includes a protrusion part protruding in a circumferential direction from one surface thereof, and a protrusion groove formed in a shape corresponding to the protrusion part in the other surface thereof, and into which the protrusion part adjacent thereto is inserted.
A method of manufacturing a stator assembly of a hairpin winding motor, in which hairpin coils are wound around a stator core having a plurality of coil slots, the method comprising:
- providing the hairpin coils continuously connected to form a coil winding;
- coupling a yoke forming the stator core and the hairpin coils;
- and
- inserting a support ring configured to surround the stator core into an outer
- circumferential surface of the stator core,
- wherein a plurality of yokes are disposed along a circumferential direction.
Dependencies are inferred from the claim text.