Stator for motor
    1.
    发明授权
    Stator for motor 失效
    马达定子

    公开(公告)号:US5498917A

    公开(公告)日:1996-03-12

    申请号:US211391

    申请日:1994-06-07

    IPC分类号: H02K1/16 H02K1/00

    CPC分类号: H02K1/16

    摘要: A stator for a motor in which there are provided a ring-shaped yoke portion iron core (2), tooth portion iron cores (3) arranged at an equal interval on the inner circumferential side of the yoke portion iron core (2), stator coils (5) fitted into slots (4) formed between respective adjacent tooth portion iron cores (3), and bridging portions (31) connecting the inner circumferential sides of the respective adjacent tooth portion iron cores (3), and a rotor (6) is oppositely disposed through a gap on the inner circumferential side of the tooth iron cores (3), thus allowing the ratio of length s in a circumferential direction of the bridging portion (31) to pitch p in the circumferential direction of the tooth portion iron cores (3) to fall within a range of 0.01 to 0.20.Accordingly, the cogging torque of a motor can be lowered without lowering EMF.

    摘要翻译: PCT No.PCT / JP93 / 01040 Sec。 371日期:1994年6月7日 102(e)日期1994年6月7日PCT提交1993年7月26日PCT公布。 公开号WO94 / 02982 日期:1994年2月3日。一种用于电动机的定子,其中设置有环形磁轭部分铁芯(2),齿部铁芯(3)在磁轭部分的内周侧以相等的间隔布置 铁芯(2),嵌合在形成在各个相邻的齿部铁芯(3)之间的槽(4)中的定子线圈(5)以及连接各个相邻齿部铁芯(3)的内周侧的桥接部 ),并且转子(6)通过齿铁芯(3)的内周侧上的间隙相对设置,从而允许桥接部分(31)的圆周方向上的长度s与间距p的比率 齿部铁芯(3)的圆周方向在0.01〜0.20的范围内。 因此,可以降低电动机的齿槽转矩而不降低EMF。