High-temperature (250 °C / 500 °F) 19′000 rpm BLDC fan for forced air-cooling of advanced automotive power electronics
作者： Michael Casey , Benjamin Wrzecionko , Andreas Looser , Johann W. Kolar
DOI: 10.1109/IECON.2011.6119769
关键词:
摘要: In an increasing number of application areas and industry sectors, such as the automotive, aerospace, military or oil gas industry, a trend towards higher ambient temperature rating from 120 °C upward for electrical machines power electronic converters can be observed. Forced air-cooling offers reduced complexity cooling circuit compared to water-cooling. For high rated fans are required that withstand these temperatures still feature performance comparable standard conditions in order enable converter density efficiency. Commercially available electronics typically up 75 °C, very rarely specified 105 °C. this paper, mechanical design 40mm × 28mm fan is presented detail operational range 250 at speed 19′000 rpm similar fluid dynamical terms static pressure volume flow commercial 20 The 3-phase BLDC machine driving integrated into its hub has got input 15W. driven using inverter supplied 12V DC voltage with switching frequency less than 1.3 kHz.
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