公开(公告)号：US20160126821A1

公开(公告)日：2016-05-05

申请号：US14896083

申请日：2014-05-02

申请人： THK CO., LTD.

发明人： Junichiro IWAKI ,  Takashi OGATA

IPC分类号： H02K41/035 ,  H02K7/08

CPC分类号： H02K41/0352 ,  H02K7/08 ,  H02K33/16 ,  H02K41/0356

摘要： Provided is a linear actuator whose entire length can be shortened while thrust thereof can be made large. The linear actuator of the present invention is provided with the following: a hollow drive magnet (11); a coil (4) disposed at either the outside or the inside of the drive magnet (11); and a return magnet (8) that is disposed at the other of the outside or the inside of the drive magnet (11), is connected to the coil (4), and returns the drive magnet (11) to the starting point. By conducting electricity to the coil (4), the drive magnet (11) or the coil (4) and the return magnet (8) move in the axial direction of the drive magnet 11.

摘要翻译： 提供一种线性致动器，其整个长度可以缩短，同时可以使其推力更大。 本发明的线性致动器设置有：中空驱动磁体（11）; 设置在所述驱动磁体（11）的外侧或内侧的线圈（4）; 以及设置在驱动磁体（11）的外侧或内侧的另一方的回磁体（8）与线圈（4）连接，将驱动磁铁（11）返回到起点。 通过向线圈（4）供电，驱动磁体（11）或线圈（4）和返回磁铁（8）沿着驱动磁体11的轴向移动。