公开(公告)号：US20170271937A1

公开(公告)日：2017-09-21

申请号：US15462177

申请日：2017-03-17

Applicant: DENSO CORPORATION

Inventor： Toshihiro TAKEI

IPC: H02K3/28 ,  H02K3/30 ,  H02K3/38 ,  H02K3/12 ,  H02K11/25

CPC classification number: H02K3/28 ,  H02K3/12 ,  H02K3/30 ,  H02K3/38 ,  H02K11/25 ,  H02K2203/06

Abstract: A stator includes an annular stator core and a multi-phase stator coil. The stator core has slots arranged in a circumferential direction thereof. The stator coil is comprised of phase windings that are mounted on the stator core so as to be received in the slots of the stator core. The stator coil has an annular coil end part protruding axially outward from an axial end face of the stator core. The stator coil includes, at least, two lead wires and a joint. Each of the lead wires is connected with one of the phase windings of the stator coil and led out from a radially inner periphery of the coil end part. At the joint, distal ends of the lead wires are joined to each other. Adjoining portions of the lead wires, which adjoin each other, are arranged radially inside a radially-inner peripheral surface of the coil end part.

公开(公告)号：US20210057971A1

公开(公告)日：2021-02-25

申请号：US16998150

申请日：2020-08-20

Applicant: DENSO CORPORATION

Inventor： Hiroaki TAKEDA ,  Toshihiro TAKEI

IPC: H02K15/085 ,  H02K15/02 ,  H02K15/10

Abstract: A method of manufacturing a stator includes steps of: inserting a stator coil into slots of a stator core so as to have parts of the stator coil protruding from an axial end face of the stator core; and bending the protruding parts of the stator coil in a circumferential direction. Moreover, in the bending step: a bending jig with a press surface is arranged on the axial end face of the stator core to cover at least part of a corresponding tooth of the stator core; and at least one of the protruding parts is pressed against the press surface of the bending jig, thereby being bent in the circumferential direction. Furthermore, a circumferential width of the press surface is larger than a circumferential width of a facing part of the corresponding tooth; the facing part faces the at least one of the protruding parts in the circumferential direction.

公开(公告)号：US20220385132A1

公开(公告)日：2022-12-01

申请号：US17828456

申请日：2022-05-31

Applicant: DENSO CORPORATION

Inventor： Toshihiro TAKEI

IPC: H02K3/50

Abstract: A stator includes a stator core, stator windings provided in the stator core, and a busbar connected to coil end portions of the stator windings. The busbar is composed of a flat conductor body and has a main body portion extended in a circumferential direction in parallel to a circumference of the stator core and multiple protruding portions extended radially from the main body portion. The protruding portions and the coil end portions are joined by laser welding. A thickness of each of the protruding portions in a laser beam emitting direction in which a welded portion is irradiated with a laser beam during the laser welding is greater than a plate thickness of the main body portion in the same direction.

公开(公告)号：US20130169077A1

公开(公告)日：2013-07-04

申请号：US13729589

申请日：2012-12-28

Applicant: DENSO CORPORATION

Inventor： Toshihiro TAKEI

IPC: H02K9/193

CPC classification number: H02K9/193 ,  H02K5/20 ,  H02K9/19

Abstract: An electric rotary machine has a motor frame having a cooling fluid passage, a rotary shaft rotatably supported by the motor frame, a rotor fixed to the rotary shaft, and a stator. The stator has a core having a ring shape and a stator winding wound around the core. The stator core is arranged to face an outer periphery of the rotor in a radial direction. An inlet section and an outlet section are formed in the motor frame. Cooling fluid is introduced into the cooling fluid passage through the inlet section and discharged from the outlet section. A partition wall section is formed on the motor frame and divides the cooling fluid passage into a cooling fluid inlet passage and a cooling fluid outlet passage. Through an opening formed in the partition wall section, the cooling fluid inlet passage and the cooling fluid outlet passage communicate with each other.

Abstract translation: 电动旋转机具有电动机框架，其具有冷却流体通道，由电动机框架可旋转地支撑的旋转轴，固定到旋转轴的转子和定子。 定子具有环形的芯部和围绕芯部缠绕的定子绕组。 定子铁芯沿径向与转子的外周面相对配置。 入口部分和出口部分形成在马达框架中。 冷却流体通过入口部分被引入冷却流体通道并从出口部分排出。 在电机框架上形成分隔壁部分，将冷却流体通道分成冷却流体入口通道和冷却流体出口通道。 通过形成在隔壁部分中的开口，冷却流体入口通道和冷却流体出口通道相互连通。

公开(公告)号：US20180062472A1

公开(公告)日：2018-03-01

申请号：US15685044

申请日：2017-08-24

Applicant: DENSO CORPORATION

Inventor： Toshihiro TAKEI

IPC: H02K3/12 ,  H02K1/04 ,  H02K1/16

Abstract: A stator for a rotating electric machine includes an annular stator core and a stator coil. The stator core has a plurality of slots arranged in a circumferential direction thereof. The stator coil is formed of a plurality of electric conductor segments mounted on the stator core. Each of the electric conductor segments has a pair of in-slot portions and a turn portion. Each of the pair of in-slot portions is inserted in a corresponding one of the slots of the stator core. The turn portion is located on one axial side of the stator core and connects the pair of in-slot portions. Moreover, for each of the electric conductor segments, at least one of the pair of in-slot portions of the electric conductor segment includes a protruding part that protrudes in the circumferential direction of the stator core.

公开(公告)号：US20160013705A1

公开(公告)日：2016-01-14

申请号：US14794139

申请日：2015-07-08

Applicant: DENSO CORPORATION

Inventor： Toshihiro TAKEI

IPC: H02K9/19 ,  H02K11/00

CPC classification number: H02K9/19 ,  H02K9/193 ,  H02K9/20 ,  H02K11/25 ,  H02K11/27

Abstract: A rotating electric machine includes a rotor, a stator, a temperature detecting element, and a cooling apparatus. The stator includes a stator core that is disposed so as to oppose the rotor in a radial direction of the rotating electric machine, and a stator winding that is wound around the stator core. The temperature detecting element is set in the stator winding. The cooling apparatus drips a liquid coolant onto coil end portions of the stator winding, thereby performing cooling. The stator winding has a plurality of input and output lines that are electrically connected to an external apparatus. At least one input or output line among the plurality of input and output lines is disposed vertically above the temperature detecting element.

Abstract translation: 旋转电机包括转子，定子，温度检测元件和冷却装置。 定子包括沿旋转电机的径向与转子相对配置的定子铁芯和缠绕在定子铁芯上的定子绕组。 温度检测元件设置在定子绕组中。 冷却装置将液体冷却剂滴落到定子绕组的线圈端部，从而进行冷却。 定子绕组具有电连接到外部装置的多个输入和输出线。 多个输入和输出线中的至少一个输入或输出线设置在温度检测元件的垂直上方。

公开(公告)号：US20240120780A1

公开(公告)日：2024-04-11

申请号：US18483374

申请日：2023-10-09

Applicant: DENSO CORPORATION

Inventor： Keiji KONDO ,  Toshihiro TAKEI ,  Atsushi UMEDA ,  Hirotaka KUROZAKI

IPC: H02K1/16 ,  H02K1/276 ,  H02K5/20 ,  H02K21/14

CPC classification number: H02K1/165 ,  H02K1/276 ,  H02K5/203 ,  H02K21/14

Abstract: A rotary electric machine includes a rotor core and a stator core. The rotor core includes a steel plate laminated in an axial direction of a rotation shaft of a rotor. The stator core is provided outside an outer periphery of the rotor core and includes a steel plate laminated in the axial direction. An average plate thickness of the steel plate of the stator core is smaller than an average plate thickness of the steel plate of the rotor core. In the steel plate of the stator core, a plate thickness of a portion between a predetermined position and a radially outer edge in a radial direction around the rotation axis is smaller than a plate thickness of a portion between the predetermined position and a radially inner edge in the radial direction.