公开(公告)号：US06864610B2

公开(公告)日：2005-03-08

申请号：US10634785

申请日：2003-08-06

申请人： Atsushi Hase ,  Akira Hiramitsu ,  Yasuo Kinoshita ,  Yasuharu Terada ,  Yuji Sekitomi

发明人： Atsushi Hase ,  Akira Hiramitsu ,  Yasuo Kinoshita ,  Yasuharu Terada ,  Yuji Sekitomi

IPC分类号： H02K1/28 ,  B62D5/04 ,  H02K1/27 ,  H02K5/128 ,  H02K7/06 ,  H02K15/03 ,  H02K15/14 ,  H02K21/14 ,  H02K21/12

CPC分类号： H02K1/278 ,  B62D5/0427 ,  H02K5/128 ,  H02K7/06 ,  H02K15/14

摘要： In a rotor having plural permanent magnets secured on a rotary shaft for use in, e.g., an electric motor which is incorporated preferably into a rack-type electric power steering device, a cylindrical cover is fit on the rotary shaft to cover the external surfaces of the plural permanent magnets, and one or both axial end portions of the cylindrical cover are plastically deformed thereby to secure the cylindrical cover onto the rotary shaft. Thus, the cylindrical cover is firmly secured to the rotary shaft and, even when one or more permanent magnets are separated from the rotary shaft or broken, prevents the separated permanent magnets or the broken fragments from scattering within a housing of the motor.

摘要翻译： 在具有固定在旋转轴上的多个永磁体的转子中，例如将电动机优选地并入到架式电动助力转向装置中时，将圆筒形盖安装在旋转轴上以覆盖外部表面 多个永磁体以及圆筒盖的一个或两个轴向端部塑性变形，从而将圆柱形盖固定到旋转轴上。 因此，圆柱形盖牢固地固定到旋转轴上，并且即使当一个或多个永磁体与旋转轴分离或断裂时，也防止分离的永磁体或破碎的碎片在电机的壳体内散射。

公开(公告)号：US20050125987A1

公开(公告)日：2005-06-16

申请号：US10443749

申请日：2003-05-23

申请人： Tetsuji Yamamoto ,  Yoshihiro Matsuya ,  Akira Hiramitsu ,  Katsuhiko Tatebe ,  Yoshihiro Tanaka ,  Tsuyoshi Yamasaki

发明人： Tetsuji Yamamoto ,  Yoshihiro Matsuya ,  Akira Hiramitsu ,  Katsuhiko Tatebe ,  Yoshihiro Tanaka ,  Tsuyoshi Yamasaki

IPC分类号： H02K1/18 ,  H02K15/02 ,  H02K15/12 ,  H02K15/00 ,  B23P19/00

CPC分类号： H02K15/022 ,  H02K15/12 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/53143

摘要： In a method and apparatus for manufacturing an electric motor, a cylindrical stator core circumferentially dividable to plural core components is inserted into a circular internal surface of a motor housing. In this case, the motor housing is heated to be expanded thermally thereby enlarge the circular internal surface thereof. Then, the stator core is fit over the external surface of an insertion guide head of a generally cylindrical shape, and the insertion guide head is moved upward toward the thermally expanded motor housing secured on a fixed table to insert the stator core inside the motor housing. When the insertion guide head reaches a predetermined axial position inside the motor housing, a pressing mechanism incorporated in the insertion guide head is operated to press the plural core components on the circular internal surface of the motor housing. Then, the motor housing is contracted as the temperature thereof goes down, whereby the plural core components are secured such that each of core components is pressed at lateral surfaces thereof on the next core components in the circumferential direction as a result of being pressed by the circular internal surface of the motor housing.

摘要翻译： 在用于制造电动机的方法和装置中，将周向可分割成多个铁心部件的圆柱形定子铁芯插入到电动机壳体的圆形内表面中。 在这种情况下，电动机壳体被加热以热膨胀，从而扩大其圆形内表面。 然后，将定子铁心装配在大致圆柱形形状的插入导向头的外表面上，并且插入导向头向固定在固定台上的热膨胀电动机壳体向上移动，以将定子铁心插入电动机壳体 。 当插入引导头到达电动机壳体内部的预定的轴向位置时，将插入导向头中的压入机构操作，以将电动机壳体的圆形内表面上的多个芯部件按压。 然后，马达壳体随着其温度下降而收缩，由此多个芯部件被固定，使得每个芯部件在其周向上的下一个芯部件上的侧表面被按压，由于被按压 电机外壳的圆形内表面。

公开(公告)号：US07225525B2

公开(公告)日：2007-06-05

申请号：US10443749

申请日：2003-05-23

申请人： Tetsuji Yamamoto ,  Yoshihiro Matsuya ,  Akira Hiramitsu ,  Katsuhiko Tatebe ,  Yoshihiro Tanaka ,  Tsuyoshi Yamasaki

发明人： Tetsuji Yamamoto ,  Yoshihiro Matsuya ,  Akira Hiramitsu ,  Katsuhiko Tatebe ,  Yoshihiro Tanaka ,  Tsuyoshi Yamasaki

IPC分类号： H02K15/00

CPC分类号： H02K15/022 ,  H02K15/12 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/53143

摘要： In a method for manufacturing an electric motor, a cylindrical stator core circumferentially dividable into a plurality of core components is inserted into a circular internal surface of a motor housing. In this case, the motor housing is heated to be expanded thermally thereby enlarge circular internal surface thereof. Then, the stator core is fit over the external surface of an, insertion guide head of a generally cylindrical shape, and the insertion guide head is moved ward toward the thermally expanded motor housing secured on a fixed table to insert the stator re inside the motor housing. When the insertion guide head reaches a predetermined axial position inside the motor housing, a pressing mechanism incorporated in the insertion guide head is operated to press the core components on the circular internal surface of the motor using. Then, the motor housing is contracted as the temperature thereof goes down, whereby the core components are secured such that each of core components is pressed at lateral surfaces thereof against the next core components in the circumferential direction as a result of being pressed by the circular internal surface of the motor housing.

摘要翻译： 在制造电动机的方法中，可圆周地分割成多个芯部件的圆柱形定子芯被插入到电动机壳体的圆形内表面中。 在这种情况下，电动机壳体被加热以热膨胀，从而扩大其圆形内表面。 然后，将定子铁芯装配在大致圆柱形形状的插入导向头的外表面上，并且插入导向头朝向固定在固定台上的热膨胀电动机壳体移动，以将定子re插入电动机 住房。 当插入引导头到达电动机壳体内部的预定的轴向位置时，将插入导向头中的压入机构操作，以使电动机的圆形内表面上的芯部件压紧。 然后，马达壳体随着其温度下降而收缩，从而使芯体部件被固定成使得每个芯部件在其圆周方向上被压靠在其周向上的下一个芯部件上，这是因为被圆周方向按压 电机外壳的内表面。