公开(公告)号：US20230032685A1

公开(公告)日：2023-02-02

申请号：US17963455

申请日：2022-10-11

Applicant: DENSO CORPORATION

Inventor： Masaru HARADA ,  Ritsurou HIRAMATSU ,  Toshihiro UCHIDA

IPC: H02K15/03 ,  H02K1/276 ,  H02K21/16

Abstract: A rotor includes a permanent magnet, which is inserted in a magnet receiving hole of a rotor core and is shaped in a form of a mountain fold that is convex toward a radially inner side. A manufacturing device for the rotor includes a magnetizing device that magnetizes the inserted permanent magnet from an outside of the rotor. The magnetizing device includes: a first magnetizing unit that is placed on one side of the rotor in an axial direction and includes a magnetizing coil which supplies a magnetizing magnetic flux to the permanent magnet; and a second magnetizing unit that is placed on another side of the rotor in the axial direction and includes a magnetizing coil which supplies a magnetizing magnetic flux to the permanent magnet.

公开(公告)号：US20170133961A1

公开(公告)日：2017-05-11

申请号：US15346033

申请日：2016-11-08

Applicant: DENSO CORPORATION

Inventor： Ryunosuke AKIMATSU ,  Tatsuya TONARI ,  Toshihiro UCHIDA

IPC: H02P6/10

CPC classification number: H02P6/10 ,  H02P29/60

Abstract: In a control apparatus, a fundamental voltage generator generates, based on a target rotational speed, a fundamental voltage command for a fundamental voltage. A property storage stores a natural vibration property of a rotor when the rotor is rotating as a rotating vibration property. A rotating state detector detects a rotating position and a rotational speed of the rotor as a rotating state of the rotor. A harmonic voltage generator generates, based on the rotating state of the rotor and the rotating vibration property, a harmonic voltage command to be superimposed on the fundamental voltage command generated by the fundamental voltage generator.