Patent ID: 11894720
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. 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.