公开(公告)号：US20210218299A1

公开(公告)日：2021-07-15

申请号：US16967379

申请日：2019-03-26

Applicant: DENSO CORPORATION

Inventor： Koji MIKAMI ,  Akihiro UTSUMI ,  Yoshiaki TAKEMOTO ,  Koji HOTTA

IPC: H02K1/27 ,  H02K21/16

Abstract: A motor includes a rotation shaft, a rotor, and a stator. The rotor includes a rotor core and magnetic pole portions respectively including permanent magnets embedded in the rotor core. The magnetic pole portions have polarities that differ alternately in a circumferential direction. A projection projecting radially outward from an outer circumferential portion of the rotor core is arranged between the magnetic pole portions having different polarities. In a radial opposing relationship of the rotor core and the teeth taken at different times while the rotor is revolved once, at a certain time, a quantity of the teeth that oppose one of the magnetic pole portions and do not oppose the projection is greater than a quantity of the teeth that simultaneously oppose two of the magnetic pole portions adjacent to each other in the circumferential direction and the projection located in between the magnetic pole portions.

公开(公告)号：US20190013708A1

公开(公告)日：2019-01-10

申请号：US16079418

申请日：2017-02-23

Applicant: DENSO CORPORATION

Inventor： Akihisa HATTORI ,  Yoji YAMADA ,  Koji MIKAMI ,  Seiya YOKOYAMA

IPC: H02K1/27 ,  H02K1/14 ,  H02K3/18 ,  H02K3/52 ,  H02K15/02

Abstract: A stator of a brushless motor includes a stator core and a plurality of coils. The stator core includes a base portion having an annular plate shape and a plurality of teeth protruding from one surface of the base portion in an axial direction and disposed in a circumferential direction. The plurality of coils is respectively wound by concentrated winding along peripheral surfaces of the plurality of teeth. The base portion includes an inner circumferential edge that is recessed radially outward from an inner end of each of the plurality of teeth or the base portion includes an outer circumferential edge that is recessed radially inward from an outer end of each of the plurality of teeth.

公开(公告)号：US20180367000A1

公开(公告)日：2018-12-20

申请号：US15781995

申请日：2016-12-16

Applicant: DENSO CORPORATION

Inventor： Koji MIKAMI ,  Yoji YAMADA ,  Akihisa HATTORI ,  Seiya YOKOYAMA

IPC: H02K1/18 ,  H02K1/27 ,  H02K21/16

Abstract: A motor includes a stator including windings and a rotor. The windings include a first winding and a second winding connected in series. The rotor includes a plurality of rotor parts arranged in an axial direction. Each of the rotor parts includes a first magnet pole unit including a permanent magnet and a second magnet pole unit opposing the second winding at a rotational position of the rotor where the first magnet unit opposes the first winding. The second magnet pole unit applies a weaker magnetic force to the stator than the first magnet pole unit. The rotor parts each include an equal number of magnet poles. The first magnet pole units of the rotor parts are located at positions deviated from one another in a circumferential direction. The second magnet pole units of the rotor parts are located at positions deviated from one another in the circumferential direction.

公开(公告)号：US20210367463A1

公开(公告)日：2021-11-25

申请号：US17392052

申请日：2021-08-02

Applicant: DENSO CORPORATION

Inventor： Yoji YAMADA ,  Koji MIKAMI ,  Akihisa HATTORI ,  Seiya YOKOYAMA

IPC: H02K1/27 ,  H02K3/28 ,  H02K21/16 ,  H02P25/024 ,  H02K1/24

Abstract: A motor includes a stator having a winding, and a rotor. The rotor rotates by receiving a rotational magnetic field generated by drive current supplied to the winding. The winding includes a first winding and a second winding, the first and second windings both being excited at the same timing by the drive current. The first winding and the second winding are connected in series. The rotor includes a first pole section and a second pole section. The second pole section faces the second winding at the rotation position of the rotor at which the first pole section faces the first winding. The magnetic force exerted on the stator by the second pole section is weaker than that exerted by the first pole section.

公开(公告)号：US20190234251A1

公开(公告)日：2019-08-01

申请号：US16332295

申请日：2017-10-30

Applicant: DENSO CORPORATION

Inventor： Seiya YOKOYAMA ,  Takahiro TSUCHIYA ,  Shigemasa KATO ,  Yoji YAMADA ,  Koji MIKAMI ,  Akihisa HATTORI

IPC: F01L1/352 ,  B60T13/74 ,  F16D65/18 ,  H02K1/27 ,  H02K21/24 ,  H02K5/24 ,  H02K7/14 ,  F01P3/20

CPC classification number: F01L1/352 ,  B60T13/748 ,  F01L2001/3522 ,  F01L2101/00 ,  F01L2810/03 ,  F01L2810/04 ,  F01L2820/01 ,  F01L2820/02 ,  F01L2820/032 ,  F01L2820/04 ,  F01P3/20 ,  F01P2005/046 ,  F01P2005/125 ,  F02D13/0219 ,  F16D65/186 ,  F16D2121/20 ,  H02K1/2793 ,  H02K5/1732 ,  H02K5/24 ,  H02K7/14 ,  H02K21/24

Abstract: An attachment structure for a vehicle motor is applied for the purpose of attaching a vehicle motor to in-vehicle equipment. The attachment structure for a vehicle motor is provided with an axial gap motor that includes a rotor and a stator facing each other in the axial direction. The motor is attached to the in-vehicle equipment in a mode in which the axial direction is perpendicular to the vertical direction.