Patent ID: 8826489

Claim:
A cleaner comprising: a cleaner body in which a motor is mounted to generate a suction force; and a suction body in fluid communication with the suction force of the cleaner body so that the suction body draws in dust-laden air from a surface to be cleaned, wherein the suction body comprises: a fan that rotates using drawn-in air; a dust sensor in the suction body that senses an amount of dust in drawn-in air; an ultraviolet light emitting diode on a bottom surface of the suction body that radiates ultraviolet rays toward the surface to be cleaned; a cover unit on the bottom surface that transmits the ultraviolet rays radiated from the ultraviolet light emitting diode and prevents damage of the ultraviolet light emitting diode; a first light emitting diode on a front surface of the suction body that projects light in front of the suction body; a second light emitting diode on the front surface of the suction body that indicates the amount of dust sensed by the dust sensor; a transmission unit that transmits the rotary energy of the fan to a rotating brush so as to scatter dust attached to the surface to be cleaned; and a generator that converts rotary energy of the fan into electric energy so as to supply the electric energy to the dust sensor, the ultraviolet light emitting diode, the first light emitting diode, and the second light emitting diode through a wire that does not pass between the suction body and the cleaner body, wherein the first and second light emitting diodes are mounted together on a single substrate, and wherein the single substrate comprises a power connector and a signal connector disposed on one side of the substrate, the power connector being connected to the generator to receive the electric energy and the signal connector being connected to the dust sensor to receive a signal indicative of the amount of dust in the drawn-in air.