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Dust inflow sensing unit and robot cleaner having the same

  • US 20120079670A1
  • Filed: 09/23/2011
  • Published: 04/05/2012
  • Est. Priority Date: 10/05/2010
  • Status: Active Grant
First Claim
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1. A robot cleaner comprising:

  • a main body;

    a drive unit to drive the main body;

    a brush drum unit provided on the main body to form a dust inflow channel; and

    a dust inflow sensing unit to sense dust flowing into the main body through the dust inflow channel of the brush drum unit,wherein the dust inflow sensing unit includes a light emitting part having a transmission region to emit a beam, and a light receiving part having a reception region to overlap the transmission region and the reception region is restricted to a designated range.

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