Dust separation device and cleaner including same

Abstract

A dust separation device includes: an air inlet, a dust collection chamber to collect dust in air flowing in from an air inlet, a rotating body rotatable inside the dust collection chamber and including a blocking member formed to block dust from the air flowing in from the air inlet, a motor to rotate the rotating body, a fixing body arranged to be spaced apart from the rotating body and supporting the motor, and a sealing member configured to seal at least a portion of a gap portion formed between the rotating body and the fixing body to prevent dust from entering the gap portion, the sealing member including a brush in contact with at least one of the rotating body and the fixing body.

What is claimed is: 
     
         1 . A dust separation device, comprising:
 an air inlet;   a dust collection chamber to collect dust in air flowing in from the air inlet;   a rotating body rotatable inside the dust collection chamber, and including a blocking member formed to block the dust from the air flowing in from the air inlet;   a motor to rotate the rotating body;   a fixing body arranged to be spaced apart from the rotating body, and supporting the motor; and   a sealing member configured to seal at least a portion of a gap portion formed between the rotating body and the fixing body to prevent dust from entering the gap portion, the sealing member including a brush in contact with at least one of the rotating body and the fixing body.   
     
     
         2 . The dust separation device of  claim 1 , wherein the sealing member is configured to seal a gap inlet through which air flows into the gap portion. 
     
     
         3 . The dust separation device of  claim 1 , wherein the blocking member is along an outer circumference of the rotating body, and
 the rotating body further includes a rotating case supporting the blocking member.   
     
     
         4 . The dust separation device of  claim 3 , wherein the rotating case includes a rotating wall disposed between the blocking member and the fixing body, and the sealing member is configured to seal the gap formed between the rotating wall and the fixing body. 
     
     
         5 . The dust separation device of  claim 1 , wherein the fixing body includes a guide portion configured to guide the rotation of the rotating body,
 the rotating body includes a slide portion configured to rotate along the guide portion, and   the gap portion is formed between the guide portion and the slide portion.   
     
     
         6 . The dust separation device of  claim 5 , wherein the guide portion and the slide portion are formed in a ring shape, and the sealing member is formed in a ring shape along the guide portion and the slide portion. 
     
     
         7 . The dust separation device of  claim 5 , wherein the guide portion includes a guide groove concavely formed to accommodate at least a portion of the slide portion,
 the slide portion is configured to rotate along the guide groove, and   the sealing member is in the guide groove.   
     
     
         8 . The dust separation device of  claim 1 , wherein the sealing member further includes a base supporting the brush. 
     
     
         9 . The dust separation device of  claim 8 , wherein the base is located on the fixing body. 
     
     
         10 . The dust separation device of  claim 1 , wherein the blocking member includes a grille in which a plurality of holes are formed. 
     
     
         11 . The dust separation device of  claim 1 , wherein the brush is arranged in a direction parallel to a rotation axis direction of the rotating body. 
     
     
         12 . The dust separation device of  claim 1 , further comprising a filter disposed on a downstream side of the blocking member on an air flow path through which the air flows from the air inlet. 
     
     
         13 . The dust separation device of  claim 12 , wherein the filter is mounted to the fixing body. 
     
     
         14 . The dust separation device of  claim 1 , wherein the brush includes a carbon fiber material. 
     
     
         15 . The dust separation device of  claim 1 , wherein the dust collection chamber includes a scattering preventing rib formed to prevent dust collected in the dust collection chamber from scattering. 
     
     
         16 . A cleaner, comprising:
 a main body including an intake port, an exhaust port, and a suction motor; and   a dust separation device provided on the main body, the dust separation device including:
 an air inlet; 
 a dust collection chamber to collect dust in air flowing in from the air inlet; 
 a rotating body rotatable inside the dust collection chamber, and including a blocking member formed to block the dust from the air flowing in from the air inlet; 
 a motor to rotate the rotating body; 
 a fixing body arranged to be spaced apart from the rotating body and supporting the motor; and 
 a sealing member configured to seal at least a portion of a gap portion formed between the rotating body and the fixing body to prevent dust from entering the gap portion, the sealing member including a brush in contact with at least one of the rotating body and the fixing body.