Patent ID: 7891045
Filing Date: 2011-02-22
Classification: A47L

Abstract:
1. A robot cleaner system, comprising: a robot cleaner; and a docking station to receive dust collected in the robot cleaner, wherein the robot cleaner comprises: a dust suction port to suck dust; a dust collecting chamber to collect dust introduced through the dust suction port; a dust exhaust port to exhaust dust collected in the dust collecting chamber to the docking station; a connection path extending from the dust suction port to the dust exhaust port adjacent to the dust collecting chamber; an air guide; and a valve device provided between the connection path and the dust collecting chamber, an opening/closing of the valve device allowing the dust collecting chamber to selectively intake dust from the dust suction port or exhaust dust to the dust exhaust port according to a pressure difference between the dust collecting chamber and the connection path, wherein the air guide and the valve device are provided between the dust collecting chamber and the connection path to define two space sections, and wherein the valve device includes a suction valve, which is opened when dust is sucked through the dust suction port, and an exhaust valve, which is opened when dust is exhausted through the dust exhaust port.