Rotor for rotating electrical machine
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United States of America Patent
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Jan 29, 2013
Grant Date -
Dec 2, 2010
app pub date -
Nov 25, 2008
filing date -
Nov 28, 2007
priority date (Note) -
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Abstract
A rotor for a rotating electrical machine suppresses demagnetization of permanent magnets without deteriorating motor characteristics, is low-cost, and is highly reliable. The rotor has a plurality of rotor cores that are stacked together, a plurality of permanent magnets axially divided by the rotor cores and circumferentially arranged on each of the rotor cores, to circumferentially form magnetic irregularities, and a rotor blank made of nonmagnetic material arranged between those of the rotor cores that are adjacent to each other.
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