公开(公告)号：US20250033459A1

公开(公告)日：2025-01-30

申请号：US18580134

申请日：2022-06-29

Applicant: Hitachi, Ltd.

Inventor： Tetsuya SUTO ,  Akeshi TAKAHASHI ,  Makoto ITO

IPC: B60K7/00 ,  B60G7/00 ,  H02K5/173 ,  H02K7/08 ,  H02K7/102 ,  H02K11/33 ,  H02K21/14

Abstract: This invention provides an in-wheel motor capable of increasing steering operability and ride comfort of a vehicle. A stator 21 of an in-wheel motor 20 comprises a stator housing 21a and a stator housing cover 21b. The stator housing 21a is formed of a tubular-shaped housing annular portion 21a1, a housing flat-plate portion 21a2, a fold-back portion 21a3, and a flange portion 21a4. In the stator housing 21a, a housing recessed portion 211 is formed of the housing flat-plate portion 21a2 and the fold-back portion 21a3. The housing recessed portion 211 is provided with a hub bearing mounting portion 216 on which a hub bearing 26 is mounted. The stator housing cover 21b is provided with an upper arm attachment portion 217 and a lower arm attachment portion 218 for attaching an upper arm 31 and a lower arm 32 of a suspension device 30.

公开(公告)号：US20250030302A1

公开(公告)日：2025-01-23

申请号：US18761693

申请日：2024-07-02

Applicant: BorgWarner Inc.

Inventor： Silvio Koch ,  Benedikt Hummel ,  Denis Delannoy ,  Sebastian Vorläufer

IPC: H02K5/20 ,  H02K5/173 ,  H02K7/08 ,  H02K9/19 ,  H02K11/33 ,  H02K21/22

Abstract: An electric motor having a cooling channel which leads through an interior space surrounded by a stator and a housing comprises a first housing component, which forms a base opposite a first axial end of the stator, and a second housing component opposite a second axial end of the stator as a cover, and the first housing component has an inlet and an outlet for cooling liquid and an inner part which projects into the stator. The inner part forms a sleeve, in which the first end of the shaft is arranged, and the inner part also forms an annular space which is arranged between the stator and the sleeve, wherein a cooling channel section for cooling the stator extends in this annular space, and wherein at least one bearing of the shaft is arranged in the sleeve.

公开(公告)号：US12206312B2

公开(公告)日：2025-01-21

申请号：US17603035

申请日：2020-03-06

Applicant: Robert Bosch GmbH

Inventor： Kouichi Ozawa

IPC: H02K7/08 ,  B23P19/02 ,  F04B17/03 ,  F16C17/26 ,  H02K5/173 ,  H02K15/14

Abstract: [Problem] To provide a motor and a manufacturing method of the motor capable of suppressing generation of creep noise.
[Means for Resolution] A motor (49) that drives piston pumps (45, 48) according to the invention of the present application includes: a motor housing (61); an output rotary shaft (50); a first bearing (66) that supports the output rotary shaft (50) and is arranged on a side of the piston pumps; a second bearing (67) that supports one end of the output rotary shaft (50) and is arranged on a side of a bottom portion (72) of the motor housing (61); and a bearing holder (80, 90) that is held by an inner wall of the motor housing (61) so as to hold the second bearing (67).

公开(公告)号：US12191742B2

公开(公告)日：2025-01-07

申请号：US17826581

申请日：2022-05-27

Applicant: GUANGDONG WELLING MOTOR MANUFACTURING CO., LTD.

Inventor： Minghu Yu ,  Chuang Chi ,  Yajun Zuo

IPC: H02K5/173 ,  H02K1/14 ,  H02K1/16 ,  H02K5/15 ,  H02K7/08 ,  H02K11/33

Abstract: A rotating motor and a fan are provided. A first bearing seat, a second bearing seat and a plurality of support rods of the motor are arranged to form a supporting frame of the motor. Accordingly, the coaxiality between the first bearing seat and the second bearing seat can be ensured. The motor has a rotor. The outer diameter of the permanent magnet of the rotor is disposed to be greater than or equal to the outer diameter of a second bearing of the rotor. The outer diameter of a first bearing of the rotor is disposed to be greater than or equal to the outer diameter of the permanent magnet of the rotor. Accordingly, the entire rotor of the rotating motor can be directly mounted on the supporting frame.

公开(公告)号：US20250007353A1

公开(公告)日：2025-01-02

申请号：US18752874

申请日：2024-06-25

Applicant: VALEO EMBRAYAGES

Inventor： Roel VERHOOG ,  Herve MAUREL ,  Herve MAHE ,  Eric RUMEAU

IPC: H02K5/24 ,  H02K5/173 ,  H02K7/08

Abstract: A drive unit of a mobility device, including an electric machine, a casing including a first shell and a second shell, the second shell being situated between the electric machine and the first shell, and a main shaft which is housed in a space delimited by the first shell and the second shell and is able to be set in rotation by the electric machine. The main shaft is mounted on the second shell by way of a first rolling bearing. The first rolling bearing is mounted without clearance on the second shell by way of first axial retention means.

公开(公告)号：US20240429774A1

公开(公告)日：2024-12-26

申请号：US18652277

申请日：2024-05-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wonsoo KANG ,  Younmo KANG ,  Jimin KIM ,  Taesang PARK ,  Geonho LEE ,  Keeyeon CHO ,  Minshin CHO ,  Jinwoo HAN ,  Woong HWANG

IPC: H02K5/173 ,  A47L5/28 ,  F16C19/08 ,  H02K7/08 ,  H02K21/16

Abstract: A cleaner including a suction head; a main body; and a motor to form a suction airflow from the suction head to the main body. The motor includes a stator; a rotor; and an impeller coupled to the rotor and configured to generate an airflow by being rotated. The motor includes a housing that includes a base portion including a receiving space provided to accommodate the rotor and the stator; and a cover portion including a through-hole through which the rotor passes, the cover portion provided to cover the impeller. The base portion includes a bearing hole formed in an upper portion of the base portion to install a bearing provided to support the rotor; and a stator insertion hole formed to be open on a lateral side of the base portion to allow the stator to be inserted into the receiving space.

公开(公告)号：US20240429773A1

公开(公告)日：2024-12-26

申请号：US18339822

申请日：2023-06-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yilun Luo ,  John Diemer ,  Jack M. Gayney ,  Patrick S. Portell ,  Sanjeev M. Naik ,  Azadeh Narimissa ,  Mohammad F. Momen

IPC: H02K5/173 ,  H02K7/00 ,  H02K11/40

Abstract: An electric motor including a motor casing, a shaft having an axis of rotation, a first end and a second end, a first main bearing for rotatably supporting the shaft at the first end within the motor casing, a second main bearing for rotatably supporting the shaft at the second end within the motor casing, and a grounding bearing for conducting a bearing current between the shaft and the motor casing.

公开(公告)号：US12170473B2

公开(公告)日：2024-12-17

申请号：US18568704

申请日：2022-06-09

Applicant: MEIDENSHA CORPORATION

Inventor： Shinhaku Sho

IPC: H02K7/00 ,  F16C3/02 ,  H02K5/173 ,  H02K7/08

Abstract: A shaft configured to suppress damage without having an increased diameter is provided. The shaft includes a supported portion supported by a bearing and an adjacent large-diameter portion larger in diameter than the supported portion and disposed closer to a center in an axial direction than the supported portion. The shaft is configured to rotate integrally with a rotor while holding the rotor. A sectional shape of a boundary portion between the supported portion and the large-diameter portion in a longitudinal section of the shaft is an arc shape that is, on an outer side in the axial direction with respect to a virtual rising point, recessed inward from an outer edge in the radial direction of the supported portion and raised outward in the radial direction from the outer edge, as the arc shape extends from the outer to an inner side in the axial direction.

公开(公告)号：US12119734B2

公开(公告)日：2024-10-15

申请号：US17764644

申请日：2020-08-21

Applicant: Nidec Corporation

Inventor： Takaaki Bando ,  Takuya Matsuyama

IPC: H02K9/22 ,  H02K5/173 ,  H02K5/18 ,  H02K5/20 ,  H02K7/08 ,  H02K9/20

CPC classification number: H02K9/225 ,  H02K5/1732 ,  H02K5/18 ,  H02K5/203 ,  H02K7/083 ,  H02K9/20 ,  H02K2205/09

Abstract: A motor includes a rotor rotatable about a central axis and a stator including coils. The stator opposes the rotor with a gap interposed therebetween. A housing defines at least a portion of a closed chamber in which a cooling medium is housed. Heat dissipation portions are able to release heat of the cooling medium in the closed chamber to an outside. A pressure adjustment portion is able to adjust a pressure in the closed chamber. At least a portion of the coils and the rotor is housed in the closed chamber.

公开(公告)号：US20240333057A1

公开(公告)日：2024-10-03

申请号：US18620440

申请日：2024-03-28

Applicant: HONDA MOTOR CO., LTD.

Inventor： Manabu Yazaki ,  Tatsuya Choji

IPC: H02K3/24 ,  F01D15/10 ,  H02K5/173 ,  H02K7/18 ,  H02K9/197

CPC classification number: H02K3/24 ,  H02K5/1732 ,  H02K9/197 ,  F01D15/10 ,  F05D2220/76 ,  H02K7/1823

Abstract: A stator of a rotating electric machine system includes a neutral point terminal that is formed in conductive wires that are pulled out from electromagnetic coils. The rotating electric machine system includes a partition member accommodated in a housing. A first wall surface of the partition member faces toward an end part of a coil end portion in an axial direction which includes end parts of the electromagnetic coils. A concave portion recessed in a direction away from the coil end portion is formed in the first wall surface. A liquid coolant flows between the neutral point terminal and a bottom surface of the concave portion.