公开(公告)号：US12062964B2

公开(公告)日：2024-08-13

申请号：US17411318

申请日：2021-08-25

Applicant: DENSO CORPORATION

Inventor： Yuki Mawatari ,  Akito Tamura ,  Hiroyuki Tsuchiya ,  Akira Fukushima ,  Yuki Takahashi

IPC: H02K3/50 ,  H02K11/33

CPC classification number: H02K3/50 ,  H02K11/33 ,  H02K2203/09

Abstract: An armature which radially faces a magnetic field-producing unit equipped with a magnet unit having a plurality of magnetic poles includes a housing, an armature core, a multi-phase armature winding, and bus bars. The housing includes a cylinder and a disc-shaped end plate placed in contact with one of axially opposed ends of the cylinder. The armature core is disposed on a portion of the cylinder which radially faces the magnet unit. The armature winding is disposed on a portion of the armature core which radially faces the magnet unit. The bus bars electrically connect phase windings of the armature winding together. The armature also includes a bus bar module which is of a circular or C-shape extending along the circumference of the armature core. The bus bar module is secured to the cylinder, the end plate, or one of axially opposed ends of the armature core.

公开(公告)号：US12003139B2

公开(公告)日：2024-06-04

申请号：US17411304

申请日：2021-08-25

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Tsuchiya ,  Shinji Koda ,  Yuki Takahashi ,  Kazuya Iwase ,  Akito Tamura

IPC: H02K1/276 ,  H02K1/2791 ,  H02K3/47 ,  H02K11/33

CPC classification number: H02K1/2766 ,  H02K1/2791 ,  H02K3/47 ,  H02K11/33 ,  H02K2213/03

Abstract: The rotating electric machine includes a stator having a stator winding and a rotor facing the stator in a radial direction. The rotor includes a carrier having a disk-shaped end plate section fixed to a rotating shaft and arranged coaxially with the rotating shaft, and an annular magnet unit arranged coaxially with the rotating shaft. The magnet has a cylindrical magnet holder whose one end in an axial direction is fixed to the end plate section, and a magnet fixed to a peripheral surface on a stator side in the radial direction in the magnet holder and having an alternating polarity in a circumferential direction. The magnet holder is made of a non-magnetic material. In the magnet, an orientation of an axis of easy magnetization on a q-axis is deviated from an orientation parallel to the q-axis.

公开(公告)号：US09306424B2

公开(公告)日：2016-04-05

申请号：US13958104

申请日：2013-08-02

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Tsuchiya ,  Koji Kondo

IPC: H02K15/03 ,  H02K1/28 ,  H02K21/04

CPC classification number: H02K1/28 ,  H02K21/044

Abstract: A rotor for a rotary electric machine includes a pair of Lundell-type cores, a plurality of magnets, and a magnet retainer. The pair of Lundell-type cores includes a plurality of claw poles with flange portions projecting to a circumferential direction of the rotor from an end portion on an outer diameter side of each of the claw poles. The plurality of magnets are arranged between the pair of Lundell-type cores, and are magnetized in a direction of reducing flux leakage. The magnet retainer retains each of the magnets, and has side surfaces in the circumferential direction. At least one of the side surfaces is provided with at least one projection for restraining movement of the magnet retainer in an axial direction along a rotary shaft.

Abstract translation: 用于旋转电机的转子包括一对隆德尔型芯，多个磁体和磁体保持器。 一对隆德尔型芯包括多个爪极，其具有从每个爪极的外径侧的端部突出到转子的圆周方向的凸缘部。 多个磁体配置在一对隆德尔型磁芯之间，并且在减少磁通泄漏的方向上被磁化。 磁体保持器保持每个磁体，并且在圆周方向上具有侧表面。 至少一个侧表面设置有至少一个用于沿着旋转轴沿轴向限制磁体保持器的运动的突起。

公开(公告)号：US12068670B2

公开(公告)日：2024-08-20

申请号：US17411132

申请日：2021-08-25

Applicant: DENSO CORPORATION

Inventor： Akito Tamura ,  Yuki Mawatari ,  Hiroyuki Tsuchiya

IPC: H02K9/22 ,  H02K3/50 ,  H02K21/14

CPC classification number: H02K9/223 ,  H02K3/50 ,  H02K21/14 ,  H02K2203/06

Abstract: In a rotating electrical machine, a holder member is disposed to be radially closer to an armature coil than to a magnetic field generator. The holder member is configured to hold the armature coil. The holder member has a first portion that faces a first end portion of the armature coil, and a second portion that faces a second end portion of the armature coil. The first portion of the holder member is thermally coupled to the first end portion of the armature coil. The second portion of the holder member is thermally coupled to the second end portion of the armature coil.

公开(公告)号：US10320267B2

公开(公告)日：2019-06-11

申请号：US15166993

申请日：2016-05-27

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Tsuchiya

IPC: H02K9/28 ,  H02K1/32 ,  H02K9/04 ,  H02K5/14 ,  H02K9/06

Abstract: A rotary electric machine includes a rotating shaft 18 rotatably supported by a housing, a stator including armature windings, a rotor including field cores and field windings, slip rings electrically connected to the field windings, brushes contacted and electrically connected to the slip rings, and a brush holder including the brushes and terminals. The rotor is provided with one or more fans. The terminals include exposed portions exposed at least partially from the brush holder, and the exposed portion are disposed on a ventilation path of a cooling airflow W generated by rotation of the fans. Accordingly, since the exposed portion are disposed on the ventilation path of the cooling airflow, heat caused by an energization can be efficiently dissipated, and heat generated in the brushes due to the interfacial friction is dissipated from the exposed portions.