LINEAR MOTOR
    21.
    发明申请
    LINEAR MOTOR 审中-公开
    线性电动机

    公开(公告)号:US20090026847A1

    公开(公告)日:2009-01-29

    申请号:US12280014

    申请日:2006-03-31

    IPC分类号: H02K41/03

    CPC分类号: H02K41/03 H02K1/27 H02K7/08

    摘要: In prior art linear motor, large burden is applied to a mechanism for supporting a moving member because magnetic attracting force acts in one direction between armature and moving member and the structure is distorted to cause various troubles. In inventive linear motor, a stator having armature winding and moving member having permanent magnets are arranged to move relatively. The linear motor stator includes a ring-shaped core, armature teeth and armature winding to form a magnetic circuit. Slit grooves are formed in armature teeth opposed to both of front and rear surfaces of the permanent magnets of the moving member with an air gap defined between stator and moving member. Projected members movable along the slit grooves of the armature teeth are provided on the permanent magnet surfaces. Thus magnetic attracting force can be canceled and the member having the permanent magnets can have a high rigidity.

    摘要翻译: 在现有技术的线性电动机中,由于磁吸引力作用在电枢与移动部件之间的一个方向上,所以结构变形而引起各种故障,因此对用于支撑移动部件的机构施加较大的负担。 在本发明的线性电动机中,具有具有永磁体的电枢绕组和移动构件的定子被布置成相对移动。 线性电动机定子包括环形铁芯,电枢齿和电枢绕组以形成磁路。 狭缝槽形成在与移动构件的永久磁铁的前表面和后表面两者相对的电枢齿中,在定子和移动构件之间具有气隙。 在永久磁铁表面上设置有沿电枢齿的狭缝槽移动的突出部件。 因此,可以抵消磁吸引力,并且具有永磁体的构件可以具有高刚性。

    Linear motor and X-Y stage
    22.
    发明授权
    Linear motor and X-Y stage 失效
    线性电机和X-Y级

    公开(公告)号:US07250696B2

    公开(公告)日:2007-07-31

    申请号:US10920450

    申请日:2004-08-18

    IPC分类号: H02K41/03

    CPC分类号: H02K41/03 H02K2201/18

    摘要: A linear motor for generating a linear motion in a linear direction, has a plurality of first members, each of which includes an electromagnetic coil for generating a first magnetic field, and a magnetic core (magnetically permeable) having magnetic surfaces being opposite to each other so that the first magnetic field passes a space between the magnetic surfaces, and a second member arranged in the spaces to be relatively movable linearly with respect to a combination of the first members to generate the linear motion in the linear direction, and including a magnet polarized in a polarizing direction to generate a second magnetic field.

    摘要翻译: 用于在线性方向上产生线性运动的线性电动机具有多个第一构件,每个第一构件包括用于产生第一磁场的电磁线圈和具有彼此相对的磁性表面的磁芯(磁性可渗透) 使得第一磁场通过磁性表面之间的空间,并且布置在空间中的第二构件相对于第一构件的组合线性地相对移动以在线性方向上产生线性运动,并且包括磁体 偏振方向偏振以产生第二磁场。