Motor and motor manufacturing method

    公开(公告)号:US11622486B2

    公开(公告)日:2023-04-04

    申请号:US16625263

    申请日:2018-06-28

    申请人: DENSO CORPORATION

    摘要: A motor includes: a rotating shaft; a motor portion; a circuit board; a case having a circuit housing recess portion for housing the circuit board; and a cover made of a synthetic resin and sealing the opening portion of the circuit housing recess portion. The cover has an outer circumference rib and an inside rib. The outer circumference rib is located on the outer circumferential side from the opening end surface of the circuit housing recess portion and projects from the outer circumferential edge of the cover toward the front surface side of the cover and the rear surface side of the cover. The inside rib is located inside from the opening end surface and projects at least either on the front surface side of the cover or on the rear surface side of the cover.

    Clutch, motor, and power window device

    公开(公告)号:US10597926B2

    公开(公告)日:2020-03-24

    申请号:US16083377

    申请日:2017-03-13

    申请人: DENSO CORPORATION

    摘要: A clutch is configured, when a driving-side rotor is in a non-driven-rotated state, to prevent rotation of a driven-side rotor by setting a rolling element in a lock state in which the rolling element is held by a control surface and a collar. The clutch is configured so that when the driving-side rotor is driven and rotated in the lock state, the driving-side rotor pushes the rolling element via two circumferential holders in a rotation direction to release the rolling element from the lock state. Each of the two circumferential holders includes a guide portion configured to guide the rolling element toward a radially inner side of the collar when the rolling element is released from the lock state.

    Gear reducer and gearmotor
    3.
    发明授权

    公开(公告)号:US11460095B2

    公开(公告)日:2022-10-04

    申请号:US17414177

    申请日:2019-12-27

    申请人: DENSO CORPORATION

    IPC分类号: F16H1/32 F16H19/00 F16D41/10

    摘要: A gear reducer has a helical gear, an eccentric shaft that is joined to the helical gear and has a first supporting portion that is offset in a rotation radial direction with respect to a rotation shaft of the helical gear, and a slider plate that is disposed at a radial direction outer side of the eccentric shaft. Further, the gear reducer has a transmitting gear that is supported at a first supporting portion, and whose rotation around its own axis is restricted due to the transmitting gear being engaged with the slider plate, and that revolves due to the helical gear rotating together with the eccentric shaft, and has an output gear body that rotates due to the transmitting gear revolving. The transmitting gear has a pair of restricting projections that project-out toward the slider plate side, and the slider plate is disposed between the pair of restricting projections.

    Clutch and motor
    4.
    发明授权

    公开(公告)号:US11047433B2

    公开(公告)日:2021-06-29

    申请号:US16471959

    申请日:2018-03-09

    申请人: DENSO CORPORATION

    摘要: This clutch includes an annular clutch housing, a rotationally driven drive-side rotating body, a driven-side rotating body, a rolling body, and a support member. The clutch is configured such that, when the drive-side rotating body starts to rotate when driven, the drive-side rotating body comes into contact with the support member in a rotational direction and presses the rolling body in the rotational direction through the support member, thereby releasing the rolling body from gripping effected by the clutch housing and the driven-side rotating body. The support member includes a load generation section for generating a load which makes it difficult for the support member to rotate about the rotation axis of the drive-side rotating body when at least the drive-side rotating body starts to rotate when driven.

    Clutch and motor
    6.
    发明授权

    公开(公告)号:US11002322B2

    公开(公告)日:2021-05-11

    申请号:US16320871

    申请日:2017-09-14

    申请人: DENSO CORPORATION

    IPC分类号: F16D41/069 F16D41/10

    摘要: A clutch includes a roller arranged between a clutch housing and a driven side rotating body. The roller is rotated about a rotation axis of a drive side rotating body together with the drive side rotating body when the drive side rotating body is rotationally driven. The roller hinders rotation of the driven side rotating body by being sandwiched between the clutch housing and the driven side rotating body when the drive side rotating body is not rotationally driven. The support member sandwiches the roller between the clutch housing and the driven side rotating body. The support member rotates about the rotation axis of the drive side rotating body together with the drive side rotating body. The grease is arranged between the clutch housing and the roller. The support member restricts rotation of the roller about a central axis of the roller.