Patent ID: 7257852
Filing Date: 2007-08-21
Classification: A47L

Abstract:
1. A suction unit for use in an electric vacuum cleaner, comprising: a floor nozzle; and a mini nozzle detachably secured to the floor nozzle, wherein when a section head of the mini nozzle is secured to the floor nozzle, an air communication is provided therebetween, and wherein the mini nozzle includes an ion generating unit and a suction air intake chamber provided with an opening for suctioning dirt particles thereinto, wherein the ion generating unit includes at least one rotor provided in the suction air intake chamber, said at least one rotor having a surface made of raised fabric and being rotated by an air stream flowing into or in the suction air intake chamber; and a generator installed in the suction air intake chamber, the generator being made of material having relative charge affinity different from that of the raised fabric and coming into frictional contact with the raised fabric to generate ions.