公开(公告)号：US5437349A

公开(公告)日：1995-08-01

申请号：US207927

申请日：1994-03-08

申请人： Hidenori Kurahashi ,  Horishi Iwasaki ,  Hideki Hayakawa ,  Yuzo Nagai ,  Seiichi Hirai

发明人： Hidenori Kurahashi ,  Horishi Iwasaki ,  Hideki Hayakawa ,  Yuzo Nagai ,  Seiichi Hirai

IPC分类号： B62D5/04

CPC分类号： B62D5/0406 ,  B62D5/04 ,  B62D5/0427 ,  B62D5/0448

摘要： An electrically operated power steering apparatus for use in a motor vehicle includes a steering shaft axially movable in response to a manual steering force applied from a steering wheel, the steering shaft having a ball screw, a nut screw threaded over the ball screw with a plurality of balls interposed therebetween, a brushless motor for assisting in axially moving the steering shaft, the brushless motor having a rotor coupled to the nut screw and rotatably disposed around the steering shaft, and a stator spaced from the rotor by a first gap, an outer casing having a first inner circumferential surface which supports the nut screw through a bearing, a second circumferential surface which supports the stator, and an adjacent portion disposed adjacent to the brushless motor remote from the nut screw, the steering shaft being housed in the outer casing, and a power device disposed in the adjacent portion closely to the stator and electrically connected to the stator.

摘要翻译： 一种用于机动车辆的电动助力转向装置包括：转向轴，其响应于从方向盘施加的手动转向力而可轴向移动，转向轴具有滚珠丝杠，螺母螺纹带在多个滚珠丝杠上，多个 插入其间的滚珠，用于辅助轴向移动转向轴的无刷电动机，所述无刷电动机具有联接到螺母螺钉并可旋转地设置在转向轴周围的转子，以及与转子间隔开第一间隙的定子，外部 壳体，其具有通过轴承支撑螺母螺钉的第一内周面，支撑定子的第二圆周面，以及远离螺母螺钉设置在无刷电动机附近的相邻部分，转向轴容纳在外壳中 以及配置在相邻部分中的与电子定子电连接的电力装置。