Cooling fan
    40.
    发明授权
    Cooling fan 有权
    冷风扇

    公开(公告)号:US08435018B2

    公开(公告)日:2013-05-07

    申请号:US13329329

    申请日:2011-12-19

    IPC分类号: F04B35/04

    摘要: A cooling fan (1) includes a fan housing (10), a stator (20), a rotor (30) and a bearing assembly (40). A tube (111) extends upwardly from a central portion of the fan housing. The stator is mounted around the tube. The bearing assembly includes a ball bearing (333) and a sleeve bearing (335) received in two ends of the tube, respectively. The rotor has a shaft (336) extending into and rotatably supported by the bearing assembly. An elastic element (332) is arranged on the ball bearing to provide a pressing force on the ball bearing toward the sleeve bearing. An oil retaining element (339) is arranged around a bottom end of the shaft and spaced from the shaft. The oil retaining element is attached to the sleeve bearing to provide oil for the sleeve bearing.

    摘要翻译: 冷却风扇(1)包括风扇壳体(10),定子(20),转子(30)和轴承组件(40)。 管(111)从风扇壳体的中心部分向上延伸。 定子围绕管安装。 轴承组件包括分别容纳在管的两端的滚珠轴承(333)和套筒轴承(335)。 转子具有延伸到轴承组件并由轴承组件可旋转地支撑的轴(336)。 弹性元件(332)设置在球轴承上,以向球轴承提供朝向套筒轴承的按压力。 油保持元件(339)围绕轴的底端布置并与轴间隔开。 油保持元件连接到套筒轴承上,为套筒轴承提供油。