公开(公告)号：US11374464B2

公开(公告)日：2022-06-28

申请号：US16664990

申请日：2019-10-28

Applicant: DENSO CORPORATION

Inventor： Tomoyuki Shinkai ,  Takashi Satou ,  Takeo Maekawa

IPC: H02K9/193 ,  H02K11/25 ,  H02K3/24 ,  H02K3/50

Abstract: A detection part of a temperature detection element is mounted to ends of drawn portions which are further protruded in the axial direction than coil end portions. The detection part and the ends of the drawn portions provided with the detection part are covered with a covering member. The ends of the drawn portions provided with the detection part and covered with the covering member are inserted into a through hole of a wall member which is disposed so as to axially face an axial end face of a stator core. In this case, the detection part is located at a position deeper (on the rear side) than a position of a stator core side opening of the through hole.

公开(公告)号：US10601359B2

公开(公告)日：2020-03-24

申请号：US16087676

申请日：2017-01-30

Applicant: DENSO CORPORATION

Inventor： Kenji Inokuma ,  Takashi Satou ,  Tomoyuki Shinkai

IPC: G01R31/02 ,  H02P29/64 ,  H02K11/25 ,  H02P23/00 ,  B60K6/26 ,  H02K9/19 ,  H02P23/14

Abstract: A motor control device includes coil temperature detection means, cooling oil temperature detection means, and a control unit. The control unit implements a coil protection torque restriction and a cooling oil protection torque restriction. The control unit makes it easier for the coil protection torque restriction to be preferentially implemented in a low rotation operating region in which a motor operates at a low rotation speed equal to or lower than a predetermined value, and makes it easier for the cooling oil protection torque restriction to be preferentially implemented in a high rotation operating region in which the motor operates at a higher rotation speed than in the low rotation operating region.

公开(公告)号：US10574118B2

公开(公告)日：2020-02-25

申请号：US15478693

申请日：2017-04-04

Applicant: DENSO CORPORATION

Inventor： Koji Asagara ,  Takeo Maekawa ,  Takashi Satou ,  Tomoyuki Shinkai

IPC: H02K9/19 ,  H02K7/14 ,  H02K1/27 ,  H02K5/20 ,  H02K7/116

Abstract: A rotating electric machine includes a rotating shaft, a rotor fixed on the rotating shaft, a stator, a housing, a liquid coolant and a flow direction regulating member. The stator is arranged so that a radially inner peripheral surface of the stator radially faces a radially outer peripheral surface of the rotor through an annular gap formed therebetween. The housing covers both axial ends of the stator and rotatably supports the rotating shaft. The liquid coolant is provided in an internal space formed in the housing to flow into at least part of the annular gap formed between the radially inner peripheral surface of the stator and the radially outer peripheral surface of the rotor. The flow direction regulating member axially faces an axial end face of the rotor through an axial gap formed therebetween and regulates the flow direction of the coolant by means of the axial gap.

公开(公告)号：US10516363B2

公开(公告)日：2019-12-24

申请号：US15477503

申请日：2017-04-03

Applicant: DENSO CORPORATION

Inventor： Kenji Inokuma ,  Takashi Satou ,  Toyoji Yagi ,  Tomoyuki Shinkai

IPC: H02P29/60 ,  H02P29/40 ,  H02P29/62 ,  H02P29/66 ,  H02P6/12 ,  B60L15/20 ,  B60L50/61

Abstract: An apparatus for controlling a motor having a housing in which a stator and a rotor are disposed. The motor is cooled by a cooling oil in the housing. The apparatus includes a control unit configured to control the motor. The control unit has a temperature increase mode for heating the cooling oil with use of heat generated by a resistance of a coil provided in the stator.