公开(公告)号：US20180172133A1

公开(公告)日：2018-06-21

申请号：US15801633

申请日：2017-11-02

Applicant: DENSO CORPORATION

Inventor： Mikine KUME ,  Shinji NAITO

IPC: F16H57/021

CPC classification number: F16H57/021 ,  F16H61/32 ,  F16H63/3425 ,  F16H63/3466 ,  F16H2057/02034 ,  F16H2061/326 ,  F16H2063/005

Abstract: A rotary actuator includes a front housing, a middle housing, and a rear housing. The middle housing has an annular part, a front side extension part extending from the annular part toward the front housing, a rear side extension part extending from the annular part toward the rear housing, a plurality of front side convex parts projected from an outer circumference wall of the front side extension part outward in the radial direction to be in contact with an inner wall of the front housing, and a plurality of rear side convex parts projected from an inner circumference wall of the rear side extension part inward in the radial direction to be in contact with an outer edge part of the stator.

公开(公告)号：US20200336044A1

公开(公告)日：2020-10-22

申请号：US16847989

申请日：2020-04-14

Applicant: DENSO CORPORATION

Inventor： Mikine KUME ,  Shinji NAITO

IPC: H02K7/116 ,  F16H61/32 ,  F16H55/17 ,  F16H1/28 ,  H02K1/14

Abstract: A rotary actuator includes a motor, an output shaft, and a speed reducer. The motor includes a motor shaft rotating about an axial direction. The output shaft is disposed in parallel with the motor shaft. The speed reducer reduces a rotational speed of the motor and transmits rotation of the motor at a reduced rotational speed to the output shaft. The speed reducer includes a parallel-shaft type reducer that has a drive gear on the motor shaft and a driven gear on the output shaft. One side and the other side in the axial direction are defined as a first side and a second side, respectively. The motor is located on the first side of the speed reducer in the axial direction. The driven gear includes a teeth portion having a gear end surface on the first side of the teeth portion. The motor includes a stator having a stator end surface on the second side of the stator. The gear end surface is located on the first side of the stator end surface in the axial direction.

公开(公告)号：US20200336043A1

公开(公告)日：2020-10-22

申请号：US16847953

申请日：2020-04-14

Applicant: DENSO CORPORATION

Inventor： Mikine KUME ,  Shinji NAITO

IPC: H02K7/116 ,  H02K7/08 ,  F16H1/32 ,  F16H61/32

Abstract: A rotary actuator for a shift-by-wire system of a vehicle includes a motor with a motor shaft, an output shaft disposed in parallel with the motor shaft, a speed-reducing mechanism configured to reduce a rotational speed of the motor and transmit the rotation of the motor to the output shaft, and a case housing the motor and the speed-reducing mechanism. The speed-reducing mechanism includes a first speed-reducing portion including a ring gear and a sun gear, and a second speed reducing portion including a drive gear and a driven gear. The drive gear and the driven gear are coaxially disposed with the motor shaft and the output shaft, respectively, to serve as parallel shafts type gears. The drive gear is disposed between the motor and the first speed-reducing portion in an axial direction of the motor.

公开(公告)号：US20210199194A1

公开(公告)日：2021-07-01

申请号：US17204430

申请日：2021-03-17

Applicant: DENSO CORPORATION

Inventor： Mikine KUME ,  Kiyoshi KIMURA ,  Hiroyuki KADO

IPC: F16H61/32 ,  F16H1/32

Abstract: A rotary actuator used in a shift-by-wire system of a vehicle includes: a motor; an output shaft arranged parallel to a rotation shaft of the motor; and a deceleration mechanism that decelerates rotation of the motor and transmits it to the output shaft. The deceleration mechanism includes a drive gear provided over a rotation axis of the rotation shaft and a driven gear provided over a rotation axis of the output shaft to mesh with the drive gear. The driven gear is a separate member from the output shaft and is loosely fitted to the output shaft.

公开(公告)号：US20200340579A1

公开(公告)日：2020-10-29

申请号：US16847992

申请日：2020-04-14

Applicant: DENSO CORPORATION

Inventor： Kazunori SHIMADA ,  Mikine KUME ,  Hiroyuki KADO ,  Shinji NAITO

IPC: F16H61/32 ,  H02K7/116 ,  H05K7/14 ,  F16H1/32 ,  F16H63/34 ,  H02K11/21

Abstract: A rotary actuator is used in a shift-by-wire system for a vehicle. The actuator includes a motor, a case, a controller, a cover, and a cover fixing member. The case houses the motor. The controller is disposed in an opening of the case and controls the motor. The cover closes the opening of the case. The cover fixing member fixes the cover to the case. The cover fixing member fixes the cover to the case at a position outside of a board of the controller. The board is clamped between the cover and the case.

公开(公告)号：US20200332889A1

公开(公告)日：2020-10-22

申请号：US16841808

申请日：2020-04-07

Applicant: DENSO CORPORATION

Inventor： Takanori MAKINO ,  Hiroyuki KADO ,  Mikine KUME

IPC: F16H61/32 ,  G01D5/245 ,  H02K11/215 ,  H02K7/116 ,  H02K7/00

Abstract: An actuator includes an electric motor; a plurality of electronic components, which control an operation of the electric motor; a control circuit board, to which the plurality of electronic components are installed; position sensors, which are installed to the control circuit board; and a plurality of displacement limiting supports. The motor position sensors are configured to sense a rotational position of a rotor and a motor shaft of the electric motor. One of the displacement limiting supports is installed along an entire of a perimeter around the motor position sensors. Another one of the displacement limiting supports is installed at a part of a perimeter around a corresponding specific one of the electronic components. The displacement limiting supports support the control circuit board such that the displacement limiting supports limit displacement of the control circuit board.

公开(公告)号：US20170152943A1

公开(公告)日：2017-06-01

申请号：US15363226

申请日：2016-11-29

Applicant: DENSO CORPORATION

Inventor： Mikine KUME ,  Toru TABUCHI

IPC: F16H61/32 ,  H02K11/30 ,  H02K11/215 ,  F16H57/02 ,  H02K7/116

CPC classification number: F16H61/32 ,  F16H57/02 ,  F16H2057/02034 ,  F16H2061/326 ,  H02K7/116 ,  H02K11/215 ,  H02K11/33

Abstract: An output portion is formed integrally with an output gear made of a magnetic material and is rotated integrally with the output gear. A yoke is placed at the output gear and includes first and second yokes. An arcuate gap, which extends along an arc that is centered at a rotational center of the output gear, is formed between the first yoke and the second yoke. A magnet is installed between one end of the first yoke and one end of the second yoke. Another magnet is installed between another end of the first yoke and another end of the second yoke. A Hall IC is placed in the arcuate gap and is movable relative to the yoke. Primary holes are formed between the rotational center and the yoke such that the primary holes extend through the output gear in a plate thickness direction of the output gear.

公开(公告)号：US20200336052A1

公开(公告)日：2020-10-22

申请号：US16848024

申请日：2020-04-14

Applicant: DENSO CORPORATION

Inventor： Kazunori SHIMADA ,  Mikine KUME ,  Hiroyuki KADO

IPC: H02K15/02 ,  H02K7/116 ,  F16H61/32 ,  H02K5/24 ,  H02K7/08 ,  F16H63/34 ,  H02K11/21 ,  F16F15/10

Abstract: A rotary actuator is used in a shift-by-wire system for a vehicle. The rotary actuator includes a stator, a rotor, a rotor support member, a controller, a controller fixing member, and a vibration absorber. The rotor is configured to be rotatable relative to the stator. The rotor support member rotatably supports a rotary shaft of the rotor. The controller controls energization to the stator. The controller is fixed to the controller fixing member. The vibration absorber prevents vibration transfer between the rotor support member and the controller fixing member.

公开(公告)号：US20200336037A1

公开(公告)日：2020-10-22

申请号：US16847854

申请日：2020-04-14

Applicant: DENSO CORPORATION

Inventor： Ryo NAITOU ,  Mikine KUME ,  Hiroyuki KADO

IPC: H02K3/52 ,  F16H61/32 ,  H02K7/116 ,  H02K11/33

Abstract: A rotary actuator is used in a shift-by-wire system for a vehicle. The actuator includes a motor, a controller, a housing, and a bus bar. The controller controls the motor. The housing holds a stator of the motor and the controller. The bus bar includes a terminal and a holder. The terminal electrically connects a coil of the stator to a control board of the controller. The holder is molded with a part of the terminal. The terminal includes a board-side arm that extends from the holder and a connecting pin that protrudes from the board-side arm toward the control board and that is connected to the control board. The board-side arm includes a stress releasing member that extends along an imaginary plane in parallel with the control board. The stress releasing member includes at least one curved portion at which the stress releasing member is curved or bent.

公开(公告)号：US20200332890A1

公开(公告)日：2020-10-22

申请号：US16847974

申请日：2020-04-14

Applicant: DENSO CORPORATION

Inventor： Fumiya KANNOU ,  Hiroyuki KADO ,  Mikine KUME ,  Kenichi OOISHI

IPC: F16H61/32 ,  H02K5/08 ,  H02K7/116

Abstract: A rotary actuator is used in a shift-by-wire system for a vehicle. The actuator includes a motor, an output shaft, a speed reducer, and a case. The motor includes a motor shaft. The output shaft is disposed in parallel with the motor shaft. The case houses the motor and the speed reducer. The case includes an upper case that houses the motor and a lower case that houses the speed reducer. The speed reducer includes a first reducer that includes a ring gear embedded in a resin portion of the lower case and a parallel-shaft type second reducer that includes a drive gear on the motor shaft and a driven gear on the output shaft. The ring gear includes an annular gear portion and a cover that protrudes radially inward from one end of the annular gear portion.