Noise filter, outdoor unit and air conditioner
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United States of America Patent
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Mar 3, 2009
Grant Date -
May 5, 2005
app pub date -
Jan 8, 2003
filing date -
Jan 8, 2002
priority date (Note) -
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Abstract
A noise filter eliminates noise generated by a noise generating source in an outdoor unit in an air conditioner. Power is supplied from a power source to an indoor unit via the outdoor unit. A choke coil is formed by winding power source lines and indoor/outdoor lines inter unit lines around a common magnetic body. The number of turns of the power source lines and that of the indoor/outdoor lines are preferably set so as to be almost proportional to their impedances. Due to this arrangement, noises of the lines can be cancelled while maintaining balance of influences on the magnetic field of the choke coil.
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