Core, stator and rotating electrical machine
AssigneeSumitomo Electric Industries, Ltd.
InventorsTatsuya Saito, Yuichi Nakamura, Tomoyuki Ueno
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Abstract
A core used in an axial gap type rotating electrical machine includes an annular yoke having a plurality of through-holes disposed in a circumferential direction, and a plurality of columnar teeth disposed in the circumferential direction of the yoke, each of the plurality of columnar teeth including one end inserted into each of the plurality of through-holes. The yoke and each of the teeth are composed of a powder compact separate from each other, and the one end of each of the teeth is off-center in the through-hole.
Claims13
A core used in an axial gap type rotating electrical machine, comprising:
- an annular yoke having a plurality of through-holes disposed in a circumferential direction;
- and
- a plurality of columnar teeth disposed in the circumferential direction of the yoke, each of the plurality of columnar teeth including one end inserted into each of the plurality of through-holes,
- wherein the yoke and each of the teeth are composed of a powder compact separate from each other,
- wherein the one end of each of the teeth is off-center in the through-hole, and
- wherein each of the teeth includes a proximal region with a gap of 0.05 mm or less between an outer peripheral face at one end and an inner peripheral face of the through-hole.
Dependencies are inferred from the claim text.