CLEANER

摘要

Disclosed is a cleaner having an improved structure to improve cleaning performance. According to principles of the present invention, the cleaner comprises a suction unit generating a suction force to introduce air into a main body. The suction unit comprises: an impeller capable of rotating; an impeller cover having an intake port; and a return channel coupled with the impeller cover to receive the impeller therein. The return channel comprises: an inner frame; and an outer frame positioned outside the inner frame to be spaced from the inner frame. Moreover, a plurality of wings are arranged between the inner frame and the outer frame.