公开(公告)号：US20160301270A1

公开(公告)日：2016-10-13

申请号：US15100382

申请日：2015-01-05

Applicant: NSK LTD.

Inventor： Yusuke OTA ,  Hayao WATANABE ,  Shigeru ENDOU

IPC: H02K1/27 ,  H02K21/16 ,  H02K1/14

CPC classification number: H02K1/278 ,  H02K1/08 ,  H02K1/146 ,  H02K1/276 ,  H02K21/16 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

Abstract: To provide a motor core and a motor capable of reducing cogging torque and torque ripple by the shape of a pole tooth of a stator. An end surface of a pole tooth of a stator is formed such that a cross-section of the end surface along a circumferential direction is a curved surface having an arc shape that protrudes in a direction opposite to a direction in which an end surface of a magnet of a rotor (equivalent to an outer periphery of a rotor yoke part), which is opposed to the end surface, protrudes.

Abstract translation: 提供一种能够通过定子的极齿的形状减少齿槽转矩和转矩脉动的电动机芯和电动机。 定子的极齿的端面形成为使得沿着圆周方向的端面的横截面是具有弧形的弯曲表面，该弧形表面沿与方向的端面的方向相反的方向突出 与端面相对的转子的磁体（相当于转子磁轭部的外周）突出。

公开(公告)号：US20160245378A1

公开(公告)日：2016-08-25

申请号：US15026077

申请日：2014-12-26

Applicant: NSK LTD.

Inventor： Toshifumi TAGUCHI ,  Shigeru ENDOU

IPC: F16H19/06

CPC classification number: F16H19/06 ,  F16H19/0622 ,  F16H19/0672 ,  F16H2019/0686 ,  H02K7/06

Abstract: A single axis actuator includes a driving-side timing pulley located at one end in a longitudinal direction of a device frame in such a manner that a rotational center thereof is vertically oriented, a rotation transmission shaft coaxially connected to the driving-side timing pulley and extending upwardly, a driven-side timing pulley located at another end in the longitudinal direction of the device frame in such a manner that a rotation shaft thereof is vertically oriented, a timing belt bridged between the driving-side and driven-side timing pulleys, a slider connected to a part of the timing belt to be made movable in the longitudinal direction of the device frame, and a motor having a motor shaft that is connected to an upper end of the rotation transmission shaft.

Abstract translation: 单轴致动器包括驱动侧正时皮带轮，其位于装置框架的纵向方向的一端，使得其旋转中心垂直定向，同轴地连接到驱动侧正时滑轮的旋转传动轴， 向上延伸设置在装置框架的纵向方向上的另一端的从动侧正时皮带轮，使其旋转轴垂直定向，桥接在驱动侧和从动侧正时皮带轮之间的同步皮带， 连接到同步带的沿装置框架的纵向方向可移动的部分的滑块，以及具有连接到旋转传动轴的上端的电动机轴的电动机。