Stator core, rotating electric device, and stator core manufacturing method
AssigneesSumitomo Electric Industries, Ltd., Sumitomo Electric Sintered Alloy, Ltd.
InventorsYuuichi NAKAMURA, Tomoyuki UENO, Tatsuya SAITO
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Abstract
This stator core is a stator core for a rotating electric machine of an axial gap type and includes a body portion formed by a compaction-molded body of soft magnetic powder whose surfaces are coated with insulating films, wherein the body portion is provided with one or a plurality of through holes.
Claims13
A stator core for a rotating electric machine of an axial gap type, the stator core comprising:
- a body portion formed by a compaction-molded body of soft magnetic powder whose surfaces are coated with insulating films, wherein
- the body portion is provided with one or a plurality of through holes.
A stator core for a rotating electric machine of an axial gap type, the stator core comprising:
- a body portion formed by a compaction-molded body of soft magnetic powder whose surfaces are coated with insulating films;
- and
- one or a plurality of bolts fixed to the body portion, wherein
- the bolt is fixed such that a screw portion of the bolt protrudes from an outer surface of the body portion and a head portion of the bolt is embedded in the body portion.
A stator core manufacturing method for manufacturing a stator core for a rotating electric machine of an axial gap type, the method comprising:
- a compaction-molding step of compaction-molding soft magnetic powder whose surfaces are coated with insulating films, to obtain a green compact of the stator core having one or a plurality of through holes, wherein
- in the compaction-molding step, the soft magnetic powder is compaction-molded using a mold capable of forming an outer shape of the green compact and the one or plurality of through holes.
Dependencies are inferred from the claim text.