ALUMINUM WOUND LINE-START BRUSHLESS PERMANENT MAGNET MOTOR
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United States of America Patent
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Issued Date -
Apr 5, 2012
app pub date -
Sep 23, 2011
filing date -
Sep 30, 2010
priority date (Note) -
Abandoned
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Abstract
A line-start brushless permanent magnet motor assembly includes an unconventional combination of a rotor assembly including a plurality of permanent magnets mounted thereon, and a stator assembly including aluminum winding coils. The unique combination of construction features leads to significant motor performance enhancements at lower incremental cost. The line-start brushless permanent magnet motor assembly may be incorporated into a hermetic compressor, such as may be used in an air conditioning system, to meet high efficiency standards (e.g., seasonal efficiency energy rating). The disclosed embodiments have an efficiency of at least 90% with winding coils consisting essentially entirely of aluminum.
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