BLOWER, ELECTRIC MACHINE AND ASSOCIATED METHOD
    2.
    发明公开
    BLOWER, ELECTRIC MACHINE AND ASSOCIATED METHOD 审中-公开
    GEBLÄSE,ELEKTRISCHE MASCHINE UNDZUGEHÖRIGESVERFAHREN

    公开(公告)号:EP3144542A1

    公开(公告)日:2017-03-22

    申请号:EP16189192.4

    申请日:2016-09-16

    Abstract: A blower (10) includes an impeller housing (18, 20), an impeller (12) rotatably secured to the housing and an electric motor (14). The motor has a motor housing (56) with a central portion (66) and a radially extending portion (64)extending from the central portion, a venturi chamber (809) adjacent the motor housing and opposed to the impeller housing, a stator (30) secured to the central portion of the motor housing, a rotor (32) rotatably secured to the central portion of the housing, and at least one heat generating electrical component (46) secured to the radially extending portion of the motor housing. The impeller housing has a first air pressure therein and the motor housing (56) has a second air pressure therein different that the first air pressure. The venturi housing and the motor housing define a passageway (883) therebetween whereby the difference in air pressure generates air flow within the motor housing to cool the at least one heat generating electrical component (46).

    Abstract translation: 鼓风机(10)包括叶轮壳体(18,20),可旋转地固定到壳体的叶轮(12)和电动机(14)。 电动机具有电动机壳体(56),其具有中心部分(66)和从中心部分延伸的径向延伸部分(64),邻近电动机壳体并与叶轮壳体相对的文丘里室(809),定子( 30),固定到所述电动机壳体的中心部分,可旋转地固定到所述壳体的中心部分的转子(32)以及固定到所述电动机壳体的径向延伸部分的至少一个发热电气部件(46)。 叶轮壳体中具有第一空气压力,并且马达壳体(56)具有与第一空气压力不同的第二空气压力。 文氏管壳体和马达壳体在其间限定通道(883),由此空气压力差产生马达壳体内的气流,以冷却至少一个发热电气部件(46)。

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