公开(公告)号：US20220181930A1

公开(公告)日：2022-06-09

申请号：US17681902

申请日：2022-02-28

Applicant: DENSO CORPORATION

Inventor： Hiroyuki TSUCHIYA ,  Noriyuki FUKAYA ,  Yuki TAKAHASHI

IPC: H02K1/276 ,  H02K21/12 ,  H02K15/02 ,  H02K3/47

Abstract: A rotating electric machine is provided with a field magnet having a magnet unit including a plurality of magnetic poles having alternating polarities in a circumferential direction and a magnet supporting section having a cylindrical shape to which the magnet unit is fixed, and an armature having a multi-phase armature winding, disposed facing the magnet unit, either one of the field magnet or the armature being configured as a rotor. The magnet unit is configured annularly along the circumferential direction. The magnet unit is fixed to a fixed surface which is either an outer peripheral surface or an inner peripheral surface of the magnet supporting section via a foamable resin, and a thickness dimension of the foamable resin in a radial direction is set to be differentiated depending on a distance from the fixed surface of the magnet supporting section to an anti-armature side circumferential surface of the magnet.