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：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.

公开(公告)号：US20200332874A1

公开(公告)日：2020-10-22

申请号：US16847816

申请日：2020-04-14

Applicant: DENSO CORPORATION

Inventor： Tsuyoshi IMAI ,  Hiroyuki KADO ,  Mikine KUME

IPC: F16H55/32 ,  F16H63/34

Abstract: A rotary actuator is used in a shift-by-wire system for a vehicle. A speed reducer includes a ring gear and a sun gear and reduces a rotational speed of the motor. An output shaft outputs rotation of the motor at a reduced rotational speed by the speed reducer. A regulating pin is disposed in a fixing member and allows the sun gear to revolve around a rotational axis of the motor and to rotate about an eccentric axis. The regulating pin is a separate member from the fixing member. The regulating pin has a strength equal to or greater than a maximum torque reaction force received from the sun gear. A first difference in hardness between an engaging portion and the sun gear is set to be less than a second difference in hardness between the fixing member and the sun gear.

公开(公告)号：US20130174807A1

公开(公告)日：2013-07-11

申请号：US13737547

申请日：2013-01-09

Applicant: DENSO CORPORATION

Inventor： Hiroyuki KADO ,  Taisuke MURATA ,  Yoshiyuki OKUBO ,  Yoshiyuki KONO

IPC: F02D45/00

CPC classification number: F02D45/00 ,  F02D9/105 ,  F02D9/1065 ,  F02D11/10

Abstract: A speed-reducing-gear device includes a plurality of gears, which are arranged to amplify rotational force received from an electric motor. A face width of a plurality of external teeth, which are circumferentially placed one after another in a toothed section of a final gear among the plurality of gears, varies in a rotational direction of the final gear, and the face width is measured in an axial direction of the final gear.

Abstract translation: 减速齿轮装置包括多个齿轮，其被布置成放大从电动机接收的旋转力。 在多个齿轮中的最终齿轮的齿形部分中沿周向逐个放置的多个外齿的面宽度在最终齿轮的旋转方向上变化，并且面向宽度以轴向 最终装备的方向。