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公开(公告)号：EP2756582A2
公开(公告)日：2014-07-23
申请号：EP12769988.2
申请日：2012-09-12
发明人： STILLGER, Reinhard , PFAFF, Christian , KROTSCH, Jens , BAUN, Martin , BAER, Martin , EHMANN, Tobias , HEINZE, Mark , GERNER, Reinhold , HAMMEL, Christian
摘要： The present invention relates to a rotating electrical machine (1) in the form of a generator or motor, having a stator (4) which is arranged in a housing (2) and a rotor (10) which is mounted such that it can rotate about a rotation axis (8) via a shaft (6). The housing (2) has a peripheral wall (12) and two end walls (14, 16) which are situated axially opposite one another and are in the form of bearing flanges with rotary mounts (18) for the shaft (6). Two cooling fan impellers (20, 22) are connected to the shaft (6), specifically firstly, within the housing (2), an inner cooling fan impeller (20) which generates an inner cooling air circuit (A) within the housing (2) when it rotates, and secondly, outside the housing (2), an outer cooling fan impeller (22) which generates a cooling air flow (B) which flows over the housing (2) when it rotates. The first end wall (14) which is arranged on the side of the outer cooling fan impeller (22) is formed with a high degree of thermal conductivity of at least (formula I), and has, on its outer face which faces the outer cooling fan impeller (22), an outer cooling rib geometry (28) and also, on its opposite inner face, an inner cooling rib geometry (30).
摘要翻译： 本发明涉及一种发电机或电动机形式的旋转电机（1），其具有布置在壳体（2）中的定子（4）和安装成使其能够旋转的转子（10） 围绕经由轴（6）的旋转轴线（8）。 壳体（2）具有周向壁（12）和两个端壁（14,16），这两个端壁彼此轴向相对地设置并且具有带有用于轴（6）的旋转安装座（18）的轴承法兰形式。 两个冷却风扇叶轮（20,22）连接到轴（6），具体地，首先在壳体（2）内连接内部冷却风扇叶轮（20），该叶轮在壳体内产生内部冷却空气回路（A） 2）当其旋转时，其次在外壳（2）的外部形成外部冷却风扇叶轮（22），该外部冷却风扇叶轮产生在其旋转时流过外壳（2）的冷却空气流（B）。 布置在外冷却风扇叶轮（22）侧的第一端壁（14）形成有至少（式I）的高导热率，并且在其面向外侧 冷却风扇叶轮（22），外部冷却肋几何结构（28）以及在其相对内表面上的内部冷却肋几何结构（30）。
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公开(公告)号：EP2756582B1
公开(公告)日：2015-11-18
申请号：EP12769988.2
申请日：2012-09-12
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公开(公告)号：EP2149192A2
公开(公告)日：2010-02-03
申请号：EP08716867.0
申请日：2008-02-15
CPC分类号： F04D25/0606 , F04D17/06 , H02K5/225 , H02K7/04 , H02K9/04
摘要： The invention relates to a ventilation unit, particularly for independently cooling electric motors. Said ventilation unit comprises an electric motor (1) with a rotor (4) that is designed as an internal rotor and encompasses a motor shaft (5), a stator (3), and an inlet grating (9). The electric motor (1) is mounted at least in part within a receiving part (7) that is centrally arranged on the inlet grating (9). The receiving part (7) is closed at the end thereof facing away from the ventilation grating by means of an end shield (8). The motor shaft (5) extends outward through the end shield (8). A fan impeller (2) that is designed as a diagonal fan impeller is mounted at the free end of the motor shaft (5). A housing part (16) which is designed as an inlet nozzle and encompasses the receiving part (7) is disposed between the fan impeller (2) and the inlet grating (9).
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