公开(公告)号：US20140145564A1

公开(公告)日：2014-05-29

申请号：US14027625

申请日：2013-09-16

Applicant: DENSO CORPORATION

Inventor： Makoto TANIGUCHI ,  Jirou HAYASHI ,  Tatsuya INAGAKI ,  Akihito NAITOU ,  Hiroki TOMIZAWA ,  Masaaki YAMADA ,  Masashi YAMASAKI ,  Yasufumi MATSUO ,  Shuhei MIYACHI ,  Nobuhiko URYU

IPC: H02K11/00

CPC classification number: H02K11/215 ,  H02K3/12 ,  H02K5/1732

Abstract: A housing and a rotary shaft of a motor are formed of non-magnetic material. A soft magnetic member is provided between a first axial end surface of a fixed core and a bearing. The soft magnetic member is provided on the fixed core side relative to the first bearing thereby to suppress magnetic flux leaking to a vicinity of one end part of the rotary shaft by leading the magnetic flux, which is generated from a rotor, to the rotor core through the fixed core and a casing. A magnetic angular position sensor fixed to one end part of the rotary shaft can detect a magnetic angular position of the rotor accurately without being affected by external magnetic field. As a result, noise generated by vibration of the motor can be suppressed.

Abstract translation: 电动机的壳体和旋转轴由非磁性材料形成。 在固定铁心的第一轴向端面和轴承之间设置软磁性构件。 软磁性构件相对于第一轴承设置在固定芯侧，从而通过将从转子产生的磁通引导到转子铁心来抑制向旋转轴的一个端部附近泄漏的磁通量 通过固定芯和套管。 固定在旋转轴的一端的磁性角位置传感器可以精确地检测转子的磁角位置而不受外部磁场的影响。 结果，可以抑制由电动机的振动产生的噪声。

公开(公告)号：US20150061443A1

公开(公告)日：2015-03-05

申请号：US14450404

申请日：2014-08-04

Applicant: DENSO CORPORATION

Inventor： Asuka TANAKA ,  Tatsuya INAGAKI

IPC: H02K1/27

CPC classification number: H02K1/2746 ,  H02K1/276 ,  H02K1/278 ,  H02K29/03 ,  H02K2213/03

Abstract: A rotor has a projection part projected from an inner wall of a central hole part toward a central axis and a rib part defined between opening parts adjacent with each other in a circumferential direction. A first imaginary straight line is defined to extend from the central axis outward in a radial direction through a center of the projection part. The projection part is formed so that the first imaginary straight line passes the opening part. A second imaginary straight line is defined to extend from the central axis outward in the radial direction through a center of the rib part. The rib part is formed so that the second imaginary straight line passes a center of a pole part or an intermediate position between pole parts adjacent with each other in the circumferential direction.

Abstract translation: 转子具有从中心孔部分的内壁朝向中心轴线突出的突出部分和在圆周方向上彼此相邻的开口部分之间限定的肋部分。 第一假想直线被限定为从中心轴线沿径向向外延伸穿过突出部分的中心。 突出部形成为使第一假想直线通过开口部。 第二假想直线被限定为从中心轴线沿径向向外延伸穿过肋部分的中心。 肋部形成为使得第二假想直线通过圆周方向上彼此相邻的极部之间的极部的中心或中间位置。

公开(公告)号：US20240322437A1

公开(公告)日：2024-09-26

申请号：US18734616

申请日：2024-06-05

Applicant: DENSO CORPORATION

Inventor： Tatsuya INAGAKI ,  Yuuji KAKUYA ,  Yohei NAKAKURA

IPC: H01Q9/04 ,  G01S13/32 ,  H01Q1/22

CPC classification number: H01Q9/0421 ,  G01S13/32 ,  H01Q1/22 ,  H01Q9/045

Abstract: A conductive pattern, as an antenna, includes: a radiating element formed in an inverted F shape; and a feeding element for indirectly feeding power to the radiating element. The radiating element includes a main body, a short circuit part, and a powered part. The main body is a member longer than the short circuit part and the powered part. The short circuit part is connected to the main body at right angle at one end of the main body. The powered part extends from a middle of the main body in a direction perpendicular to the main body so as to have a predetermined distance from, for example, the short circuit part. The feeding element is formed to face the powered part below the powered part.