公开(公告)号：US09455610B2

公开(公告)日：2016-09-27

申请号：US13834234

申请日：2013-03-15

Applicant: DENSO CORPORATION

Inventor： Hiroki Tomizawa ,  Jirou Hayashi ,  Hiroshi Imai

IPC: H02K11/00 ,  H02K29/08

CPC classification number: H02K11/33 ,  B60L2220/50 ,  B60L2240/421 ,  B60L2240/423 ,  H02K29/08 ,  Y02T10/641 ,  Y02T10/642

Abstract: A motor drive apparatus includes a rear end frame between a motor case and a control unit case. A shaft of a motor unit is supported rotatably by a bearing fixed to the rear end frame. A first socket-spigot fitting surface formed on the rear end frame is fitted with a second socket-spigot fitting surface formed on a heat sink. A rotation angle sensor mounted on a control unit substrate attached to the heat sink is provided on the rotation axis of the shaft. The rotation angle sensor can thus accurately detect the magnetic field of a magnet provided at the end of the shaft.

Abstract translation: 电动机驱动装置包括在电动机壳体和控制单元壳体之间的后端框架。 马达单元的轴由固定到后端框架的轴承可旋转地支撑。 形成在后端框架上的第一插座插口配合表面装配有形成在散热器上的第二插座接头表面。 安装在安装在散热器上的控制单元基板上的旋转角传感器设置在轴的旋转轴上。 因此，旋转角度传感器可以精确地检测设置在轴的端部的磁体的磁场。

公开(公告)号：US20150162789A1

公开(公告)日：2015-06-11

申请号：US14560871

申请日：2014-12-04

Applicant: DENSO CORPORATION

Inventor： Asuka TANAKA ,  Akihiro Kimura ,  Jirou Hayashi ,  Makoto Taniguchi

IPC: H02K1/27 ,  H02K1/16

CPC classification number: H02K1/278 ,  H02K1/276 ,  H02K2213/03

Abstract: Each permanent magnet provided in a rotor includes a projection that projects toward a corresponding predetermined portion of the rotor core. An inner peripheral surface of each permanent magnet, which is radially opposed to the corresponding predetermined portion of the rotor core, includes a primary contacting portion and two primary non-contacting portions. The primary contacting portion contacts the corresponding predetermined portion of the rotor core at a circumferential location, which corresponds to the projection. The primary non-contacting portions do not contact the rotor core and are located on two circumferentially opposite sides, respectively, of the primary contacting portion.

Abstract translation: 设置在转子中的每个永磁体包括朝向转子芯的对应的预定部分突出的突起。 每个永磁体的径向相对于转子芯的相应的预定部分的内周表面包括主接触部分和两个初级非接触部分。 初级接触部分在对应于突起的圆周位置处接触转子芯的相应的预定部分。 主非接触部分不接触转子芯并且分别位于主接触部分的两个周向相对的侧面上。