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    • 11. 发明申请
    • ELECTRIC MACHINE - EVAPORATIVE COOLING
    • 电机 - 蒸发冷却
    • US20120024610A1
    • 2012-02-02
    • US13258839
    • 2010-04-13
    • Tim Woolmer
    • Tim Woolmer
    • H02K9/20B60K1/00B60B19/00H02K7/10H02P3/14
    • H02K9/20B60K7/0007H02K5/18H02K7/14H02K21/24H02K49/04
    • An electric machine (10;100) comprises a rotor (14a), preferably having permanent magnets (24a,b), although other field generation means are available, and a stator (12). The stator has coils (22) wound on stator bars (16) for interaction with the magnetic field of the rotor across an air gap (26a,b) defined between them. The rotor (14) comprises a housing (54) of a chamber (70) containing refrigerant (82). The rotor housing (54) has heat dissipating fins (96) accessible by the open environment whereby air movement relative to the housing caused at least by rotation of the rotor absorbs heat from the fins. The machine may bean axial flux machine, the coils being wound on bars that are disposed circumferentially spaced around a fixed axle of the machine forming a rotational axis (80) of the rotor. The machine may be a wheel motor for a vehicle, wherein the wheel is mounted directly on the rotor housing (14).
    • 电动机(10; 100)包括转子(14a),优选地具有永磁体(24a,b),尽管其它的场产生装置可用,以及定子(12)。 定子具有卷绕在定子杆(16)上的线圈(22),用于跨过它们之间限定的气隙(26a,b)与转子的磁场相互作用。 转子(14)包括容纳制冷剂(82)的腔室(70)的壳体(54)。 转子壳体(54)具有可通过开放环境访问的散热翅片(96),从而至少通过转子的旋转而相对于壳体的空气移动吸收来自翅片的热量。 机器可以是豆轴向通量机,线圈缠绕在杆上,所述杆围绕机器的固定轴围绕圆周间隔设置,形成转子的旋转轴线(80)。 机器可以是用于车辆的车轮马达,其中车轮直接安装在转子壳体(14)上。