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    Heat dissipation fan and stator thereof
    1.
    发明授权
    Heat dissipation fan and stator thereof 有权
    散热风扇及其定子

    公开(公告)号：US09077213B2

    公开(公告)日：2015-07-07

    申请号：US13278099

    申请日：2011-10-20

    申请人： Jun-Hui Yan ,  Yong-Kang Zhang ,  Yung-Ping Lin

    发明人： Jun-Hui Yan ,  Yong-Kang Zhang ,  Yung-Ping Lin

    IPC分类号： F04D25/00 ,  H02K7/09 ,  F04D25/06 ,  H02K7/14

    CPC分类号： H02K3/345 ,  F04D25/0633 ,  F04D25/0646 ,  H02K1/187 ,  H02K7/09 ,  H02K7/14

    摘要： An exemplary heat dissipation fan includes a rotor and a stator. The rotor includes a hub, a central shaft extending down from a top end of the hub, the shaft having a free end far from the top end of the hub. A magnetic element attached to an inner periphery of the hub. The stator includes a stator core consisting layers of yokes, two insulation frames mounted at two opposite ends of the stator core and a coil wound around the insulation frames. An outer surface of the stator faces and is spaced from an inner surface of the magnetic element of the rotor with a clearance defined therebetween. A width of a bottom end of the clearance adjacent to the free end of the shaft being smaller than a width of a top end of the clearance.

    摘要翻译： 示例性的散热风扇包括转子和定子。 转子包括轮毂，从毂的顶端向下延伸的中心轴，该轴具有远离毂的顶端的自由端。 附接到轮毂的内周的磁性元件。 定子包括定子铁芯，其包括轭铁层，安装在定子铁芯的两个相对端的两个绝缘框架和缠绕在绝缘框架上的线圈。 定子的外表面面向并与转子的磁性元件的内表面间隔开，间隙限定在其间。 与轴的自由端相邻的间隙的底端的宽度小于间隙的顶端的宽度。

    Heat dissipation fan with magnet ring of varying thickness
    2.
    发明授权
    Heat dissipation fan with magnet ring of varying thickness 有权
    具有不同厚度的磁环的散热风扇

    公开(公告)号：US08508093B2

    公开(公告)日：2013-08-13

    申请号：US13236615

    申请日：2011-09-19

    申请人： Hong-Tao Wu ,  Yong-Kang Zhang ,  Yung-Ping Lin

    发明人： Hong-Tao Wu ,  Yong-Kang Zhang ,  Yung-Ping Lin

    IPC分类号： H02K21/12

    CPC分类号： F04D29/329 ,  F04D25/064 ,  F04D25/0646

    摘要： An exemplary heat dissipation fan includes a rotor and a stator. The stator includes a stator core. The rotor is rotatably mounted around the stator. The rotor includes a hub and a magnet ring received in the hub. The hub includes a top wall and a peripheral side wall depending from the top wall. The magnet ring is attached to the side wall and surrounding the stator. The magnet ring has a larger thickness as measured in a radial direction at a first end which is far away from the top wall than a second end which is adjacent to top wall, such that an attracting force formed between the first end of the magnet ring and the stator core is larger than that formed between the second end of the magnet ring and the stator core.

    摘要翻译： 示例性的散热风扇包括转子和定子。 定子包括定子芯。 转子可旋转地安装在定子周围。 转子包括容纳在轮毂中的轮毂和磁环。 轮毂包括从顶壁垂下的顶壁和周边侧壁。 磁环附着在侧壁上并围绕定子。 磁体环具有比在与顶壁相邻的第二端远离顶壁的第一端处沿径向测量的厚度，使得在磁环的第一端之间形成的吸引力 并且定子铁心大于在磁环和定子铁芯的第二端之间形成的铁心。

    Cooling fan
    9.
    发明授权
    Cooling fan 有权
    冷风扇

    公开(公告)号：US07922465B2

    公开(公告)日：2011-04-12

    申请号：US11964790

    申请日：2007-12-27

    申请人： Hong Sun ,  Bao-Hua Liang ,  Yong-Kang Zhang ,  Ying-Min Huang

    发明人： Hong Sun ,  Bao-Hua Liang ,  Yong-Kang Zhang ,  Ying-Min Huang

    IPC分类号： F04B35/04

    CPC分类号： F04D29/626

    摘要： A cooling fan includes a fan housing (10) having a central tube (11) extending upwardly therefrom, a bearing (20) received in the central tube, a stator (40) mounted around the central tube, a rotor (30) having a shaft (37) extending into the bearing, and a magnetic ring (38) being fixedly mounted to the rotor to rotate with the rotor during operation of the cooling fan. The bearing is made of iron-copper alloy. The magnetic ring is made of hard magnetic material and exerts a magnetic attraction on the bearing, whereby the rotor is pulled downwardly by a magnetic attraction of the bearing on the magnetic ring to lessen the floating problem of the rotor during operation of the cooling fan.

    摘要翻译： 冷却风扇包括风扇壳体（10），其具有从其向上延伸的中心管（11），容纳在中心管中的轴承（20），围绕中心管安装的定子（40），转子（30），其具有 轴（37）延伸到轴承中，并且在冷却风扇的操作期间，固定地安装到转子以与转子一起旋转的磁环（38）。 轴承由铁 - 铜合金制成。 磁环由硬磁性材料制成，并对轴承施加磁吸引力，由此通过磁环上的轴承的磁吸引将转子向下拉，以减轻冷却风扇运转期间转子的浮动问题。