公开(公告)号：US20240243633A1

公开(公告)日：2024-07-18

申请号：US18290060

申请日：2022-03-30

Applicant: TOP CO., LTD. ,  FUKUI PREFECTURAL GOVERNMENT

Inventor： Kenji Sasaki ,  Hitoshi Otaki ,  Yoshinori Sasaki ,  Taiki Tanaka ,  Tomoya Okahashi

IPC: H02K3/28 ,  H02K1/16

CPC classification number: H02K3/28 ,  H02K1/16

Abstract: A coil includes a first coil layer and a second coil layer which is formed by winding a rectangular conductor. A side surface of the second coil layer contacts a side surface of the first coil layer in a second direction that is perpendicular to a radial first direction where the rectangular conductor overlaps. In the first coil layer, a second portion contacts a first portion. In the second coil layer, a fourth portion contacts a third portion. An outer surface of the third portion is closer to an outer peripheral side in the first direction than the outer surface of the first portion, and is closer to an inner peripheral side in the first direction than an outer surface of the second portion. An outer surface of the fourth portion is closer to the outer peripheral side in the first direction than the outer surface of the second portion.