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Automatic detection and warning device of filtering net in air conditioner

  • US 6,228,155 B1
  • Filed: 08/24/1999
  • Issued: 05/08/2001
  • Est. Priority Date: 08/24/1999
  • Status: Expired due to Fees
First Claim
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1. An automatic detection and warning device for a filtering net of an air conditioner comprising:

  • an outer frame installed with at least one wind inlet and at least one wind outlet, a wind groove being formed between the wind inlet and the wind outlet;

    a sampling filter net installed in the wind groove of the outer frame;

    a detecting unit comprising a transmitter and a receiver for detecting the amount of collecting dusts on the sampling filter net, the transmitter and receiver each being disposed in spaced manner from the sampling filter net; and

    a circuit unit installed within the outer frame for controlling the operation of the detecting unit.

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