COOLING DEVICE FOR COOLING A WINDING BRAID OF AN ELECTRICAL MACHINE AND METHOD FOR RETROFITTING THE ELECTRICAL MACHINE WITH THE COOLING DEVICE

COOLING DEVICE FOR COOLING A WINDING BRAID OF AN ELECTRICAL MACHINE AND METHOD FOR RETROFITTING THE ELECTRICAL MACHINE WITH THE COOLING DEVICE

The device has a fan (9) for blowing a stream of cooling air (32) perpendicularly onto a surface portion of a side of an air-permeable winding braid (3). Baffles (20, 21) are arranged parallel to and at a distance from a surface of another surface portion of the braid such that a partial stream (34)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHEN, Zhiyun, MICHELSSON, Olaf, BANDA, Marcus
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Beschreibung
Zusammenfassung:The device has a fan (9) for blowing a stream of cooling air (32) perpendicularly onto a surface portion of a side of an air-permeable winding braid (3). Baffles (20, 21) are arranged parallel to and at a distance from a surface of another surface portion of the braid such that a partial stream (34) of the cooling air is formed in a channel (22) that is formed by the baffles and the latter surface portion, and another partial stream (33) of the cooling air penetrating the braid flows away from the braid without any return flow. Independent claims are also included for the following: (1) a method for retrofitting an electrical machine with a cooling device (2) an electrical machine.