Patent ID: 9186030
Filing Date: 2015-11-17
Classification: A47L

Abstract:
1. A robot cleaner comprising: a body; a driving unit to enable the body to autonomously travel about a region to be cleaned, the driving unit including left and right driving wheels driven by at least one motor, and a caster mounted to a front portion of the bottom of the body to maintain stability of the robot cleaner; at least one sensor configured to detect an obstacle; a cleaning unit to clean the region to be cleaned, the cleaning unit including at least one brush unit and a fan unit; a dust box, to store dust at an inside of the dust box, the dust box being detachably mounted to the body; and a dust sensing unit including a light emitting unit to transmit light and a light receiving sensor to sense the light transmitted by the light emitting unit, the light emitting unit and the light receiving sensor being mounted on the body separately from and outside of the dust box and configured to transmit light through the inside of the dust box, wherein the dust box is configured to be detached from the body separately from the dust sensing unit mounted on the body, and the driving unit, the at least one sensor, the cleaning unit, the dust box, and the dust sensing unit are positioned on or in the body of the robot cleaner.