Patent ID: 8756751
Filing Date: 2014-06-24
Classification: A47L

Abstract:
1. A cleaning system comprising: a robot cleaner comprising a body having a first opening formed at a bottom of the body, a first dust box communicating with the first opening, and a brush unit provided at the first opening of the robot cleaner; and a maintenance station comprising a dust removal unit having a pump unit to suck air from the first dust box of the robot cleaner through the first opening of the robot cleaner, and to again blow air to the first opening of the robot cleaner, a second opening located below the first opening, and a second dust box communicating with the second opening, wherein dust is stored in the first dust box through the first opening and dust stored in the first dust box of the robot cleaner is discharged to the second opening of the maintenance station through the first opening of the robot cleaner after the dust is caused to be in motion by introducing a flow of air into the first dust box of the robot cleaner by the pump unit, and wherein the air introduced into the first dust box of the robot cleaner by the pump unit of the maintenance station passes through the first opening of the robot cleaner.