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    • 5. 发明申请
    • ELECTRIC FAN
    • 电扇
    • US20140205476A1
    • 2014-07-24
    • US14221697
    • 2014-03-21
    • SANYO DENKI CO., LTD.
    • Naruhiko KudoTomoaki IkedaHaruhisa Maruyama
    • F04D25/06
    • F04D25/0646F04D17/16F04D25/0613F04D29/059F04D29/083H02K5/10H02K21/22
    • An electric fan is provided, including a labyrinth structure with increased performance of preventing entry of a liquid into a receiving space to receive a stator and a rotor. A clearance is defined between an opposed wall portion of a base and an opposed wall portion of an impeller body, which are opposed to each other in an axial direction of a rotary shaft, to form a labyrinth structure. The opposed wall portion of the base and the opposed wall portions of the impeller body are shaped to form a volume expanding portion within the clearance. The volume expanding portion is constituted from a groove portion for expanding the clearance, having a volume larger than other portions within the clearance.
    • 提供一种电风扇,包括迷宫式结构,其具有防止液体进入容纳空间以接收定子和转子的性能。 在基座的相对的壁部分和叶轮体的相对的壁部分之间限定了间隙,它们在旋转轴的轴向方向上彼此相对,以形成迷宫式结构。 基座的相对的壁部分和叶轮本体的相对的壁部分成形为在间隙内形成体积扩大部分。 体积扩大部分由用于扩大间隙的槽部构成,其体积大于间隙内的其它部分。