公开(公告)号：US20190140515A1

公开(公告)日：2019-05-09

申请号：US16177796

申请日：2018-11-01

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Chi-Wen Chung ,  En-Yi Chu

IPC: H02K7/116 ,  B60K17/346

Abstract: A speed reducing device includes a motor and a speed reducing mechanism. The motor includes a stator portion and a rotor portion. The rotor portion includes a first eccentric ring and a second eccentric ring. The speed reducing mechanism is partially accommodated within the rotor portion. The speed reducing mechanism includes a first roller assembly, a second roller assembly, a third roller assembly, a first cycloid disc set and a second cycloid disc set. The first roller assembly includes at least one first roller. The second roller assembly includes at least one second roller. The third roller assembly includes an output shaft and at least one third roller. The first cycloid disc set is mounted around the output shaft and disposed within the first eccentric ring. The second cycloid disc set is mounted around the output shaft and disposed within the second eccentric ring.

公开(公告)号：US09528581B2

公开(公告)日：2016-12-27

申请号：US14144138

申请日：2013-12-30

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Chun-Chin Su ,  Chi-Wen Chung ,  En-Yi Chu

IPC: F16H3/06 ,  F16H27/02 ,  F16H29/02 ,  F16H29/20 ,  F16H25/20

CPC classification number: F16H25/20 ,  F16H2025/2075 ,  Y10T74/18576

Abstract: A motor driven linear actuator comprises an electric motor, a ballscrew device, and a rolling bearing. The electric motor includes a motor shaft having a first end portion. The first end portion includes an end surface and a receptacle having a first accommodation space. The ballscrew device includes a screw having a first end portion coaxially connected to the first end portion of the motor shaft. The first end portion of the screw includes a first section to be accommodated in the first accommodation space for fixing the screw with the motor shaft. The rolling bearing is disposed between the electric motor and the ballscrew device for supporting the first end portion of the screw. The end surface of the motor shaft contacts and abuts against the rolling bearing for limiting the movement of the rolling bearing between the electric motor and the ballscrew device.

Abstract translation: 马达驱动的线性致动器包括电动马达，滚珠丝杠装置和滚动轴承。 电动机包括具有第一端部的电动机轴。 第一端部包括端面和具有第一容纳空间的容器。 滚珠丝杠装置包括具有同轴连接到电动机轴的第一端部的第一端部的螺钉。 螺钉的第一端部包括容纳在第一容纳空间中用于将螺钉与电动机轴固定的第一部分。 滚动轴承设置在电动马达和滚珠丝杠装置之间，用于支撑螺杆的第一端部。 电动机轴的端面与滚动轴承接触并抵接，用于限制滚动轴承在电动马达和滚珠丝杠装置之间的移动。

公开(公告)号：US20150047444A1

公开(公告)日：2015-02-19

申请号：US14144138

申请日：2013-12-30

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Chun-Chin Su ,  Chi-Wen Chung ,  En-Yi Chu

IPC: F16H25/22

CPC classification number: F16H25/20 ,  F16H2025/2075 ,  Y10T74/18576

Abstract: A motor driven linear actuator comprises an electric motor, a ballscrew device, and a rolling bearing. The electric motor includes a motor shaft having a first end portion. The first end portion includes an end surface and a receptacle having a first accommodation space. The ballscrew device includes a screw having a first end portion coaxially connected to the first end portion of the motor shaft. The first end portion of the screw includes a first section to be accommodated in the first accommodation space for fixing the screw with the motor shaft. The rolling bearing is disposed between the electric motor and the ballscrew device for supporting the first end portion of the screw. The end surface of the motor shaft contacts and abuts against the rolling bearing for limiting the movement of the rolling bearing between the electric motor and the ballscrew device.

Abstract translation: 马达驱动的线性致动器包括电动马达，滚珠丝杠装置和滚动轴承。 电动机包括具有第一端部的电动机轴。 第一端部包括端面和具有第一容纳空间的容器。 滚珠丝杠装置包括具有同轴连接到电动机轴的第一端部的第一端部的螺钉。 螺钉的第一端部包括容纳在第一容纳空间中用于将螺钉与电动机轴固定的第一部分。 滚动轴承设置在电动马达和滚珠丝杠装置之间，用于支撑螺杆的第一端部。 电动机轴的端面与滚动轴承接触并抵接，用于限制滚动轴承在电动马达和滚珠丝杠装置之间的移动。