Stator core, stator, electric motor, drive device, compressor, air conditioner, and a method of manufacturing a stator core
AssigneeMitsubishi Electric Corporation
InventorsYuji Hirosawa, Masahiro Nigo
Life of this patent
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Abstract
A stator core includes a first core portion including a plurality of first plates stacked in a first direction; a second core portion including a plurality of second plates stacked in the first direction; and a third core portion including a plurality of third plates stacked in at least one direction orthogonal to the first direction, the third core portion being sandwiched between the first core portion and the second core portion. The third core portion has a yoke portion formed of a subset of the plurality of third plates stacked in a second direction orthogonal to the first direction.
Claims21
A stator core comprising:
- a first core portion including a plurality of first plates stacked in a first direction;
- a second core portion including a plurality of second plates stacked in the first direction;
- and
- a third core portion including a plurality of third plates stacked in at least one direction orthogonal to the first direction, the third core portion being sandwiched between the first core portion and the second core portion,
- wherein the third core portion has a yoke portion formed of a subset of the plurality of third plates stacked in a second direction orthogonal to the first direction.
A stator comprising:
- a stator core;
- an insulator combined with the stator core;
- and
- a winding wound around the stator core via the insulator,
- wherein the stator core comprises:
- a first core portion including a plurality of first plates stacked in a first direction;
- a second core portion including a plurality of second plates stacked in the first direction;
- and
- a third core portion including a plurality of third plates stacked in at least one direction orthogonal to the first direction, the third core portion being sandwiched between the first core portion and the second core portion, and
- wherein the third core portion has a yoke portion formed of a subset of the plurality of third plates stacked in a second direction orthogonal to the first direction.
A method of manufacturing a stator core, the method comprising:
- forming a first core portion by stacking a plurality of first plates in a first direction;
- forming a second core portion by stacking a plurality of second plates in the first direction;
- forming a third core portion by stacking a plurality of third plates in at least one direction orthogonal to the first direction;
- and
- a step of fixing the first core portion and the second core portion with the third core portion sandwiched therebetween,
- wherein the third core portion has a yoke portion formed of a subset of the plurality of third plates stacked in a second direction orthogonal to the first direction.
Dependencies are inferred from the claim text.