Cyclone dust collecting apparatus for vacuum cleaner

Abstract

A cyclone dust collecting apparatus for a vacuum cleaner is disclosed. The cyclone dust collecting apparatus for the vacuum cleaner includes a cyclone body having an air inflow port and air outflow port, for forming a vortex air current of contaminant-laden air drawn in through the air inflow port, a dust receptacle removably connected to the cyclone body for receiving dusts and contaminants separated from the air. A grill disposed inside the cyclone body helps to prevent the flow of the dust and contaminants separated from the air through the air outflow port. The grill can rotate and can also include sloped air path members.

What is claimed is:  
     
         1 . A cyclone dust collecting apparatus for a vacuum cleaner comprising: 
 a cyclone body having an air inflow port and air outflow port, adapted to form a vortex air current of contaminant-laden air drawn in through the air inflow port;    a dust receptacle removably connected to the cyclone body configured to receive dust and contaminants separated from the air by a centrifugal force of the vortex air current in the cyclone body;    a grill disposed about the air outflow port inside the cyclone body for preventing flow of the dust and contaminants separated from the air through the air outflow port; and a grill rotation supporting means for supporting the grill to rotate by the vortex air current in the cyclone body.    
     
     
         2 . The cyclone dust collecting apparatus according to  claim 1 , wherein the cyclone body comprises: 
 a cylindrical main body having a side surface on which the air inflow port is formed and a upper surface on which the air outflow port is formed; and    a cover removably connected to the upper surface of the cylindrical main body,    wherein an air inflow pipe is configured to connect to an air inflow path of a cleaner main body, and an air outflow pipe is configured to connect to an air outflow path of the cleaner body, the air outflow also pipe being disposed about a center of the cover.    
     
     
         3 . The cyclone dust collecting apparatus according to  claim 2 , wherein the cylindrical main body and cover are removably connected to each other through spiral connecting mechanisms respectively formed on corresponding surfaces of each other for connection.  
     
     
         4 . The cyclone dust collecting apparatus according to  claim 2 , wherein the grill comprises: 
 a grill body; and    a plurality of air path members disposed at an outer circumference of the grill body in a predetermined slope angle to form an air passage to the air outflow port.    
     
     
         5 . The cyclone dust collecting apparatus according to  claim 2 , wherein the grill comprises: 
 a grill body;    a plurality of air path members disposed at an outer circumference of the grill body in a predetermined slope angle to form an air passage to the air outflow port; and    a contaminant blocking member disposed at a lower portion of the grill body.    
     
     
         6 . The cyclone dust collecting apparatus according to  claim 2 , wherein the grill rotation supporting means comprises: 
 a supporting member disposed at the center of the air outflow port of the cylindrical main body by a plurality of ribs protruding from an inner surface of the air outflow port; and    a rotating member having a first end rotatably supported by interposing a bearing, and a second end extending through the grill and secured to a lower portion of the grill.    
     
     
         7 . The cyclone dust collecting apparatus according to  claim 2 , wherein a fine dust filter assembly is provided between the upper surface of the cylindrical main body and cover to filter fine dust.  
     
     
         8 . The cyclone dust collecting apparatus according to  claim 7 , wherein the fine dust filter assembly comprises: 
 a fine dust filter; and    a filter frame having a lower grid structure, for receiving and supporting the fine dust filter.    
     
     
         9 . The cyclone dust collecting apparatus according to  claim 7 , wherein the upper surface of the cylindrical main body slopes downward from a radially outer periphery towards a central portion.  
     
     
         10 . A cyclone dust collecting apparatus adapted for use with a vacuum cleaner comprising: 
 a cyclone body having an air inflow port and air outflow port, adapted to form a vortex air current of contaminant-laden air drawn in through the air inflow port;    a dust receptacle removably connected to the cyclone body configured to receive dust and contaminants separated from the air;    a grill disposed proximate the air outflow port and inside the cyclone body;    the grill including at least one air path member; and    wherein the air path member is sloped.    
     
     
         11 . The cyclone dust collecting apparatus according to  claim 10 , wherein a leading edge of the air path member is disposed radially inward of a trailing edge of the air path member.  
     
     
         12 . The cyclone dust collecting apparatus according to  claim 10 , wherein the grill rotates.  
     
     
         13 . The cyclone dust collecting apparatus according to  claim 12 , wherein the vortex air current rotates the grill in a direction similar to a rotational direction of the vortex air current.  
     
     
         14 . The cyclone dust collecting apparatus according to  claim 12 , further comprising a rotating member having a first end including a bearing and a second end rigidly associated with the grill.  
     
     
         15 . The cyclone dust collecting apparatus according to  claim 14 , wherein the bearing is also associated with a supporting member that is attached to the cyclone body.  
     
     
         16 . A cyclone dust collecting apparatus adapted for use with a vacuum cleaner comprising: 
 means for forming a vortex air current of contaminant-laden air;    means for receiving dust and contaminants separated from the air by a centrifugal force of the vortex air current; and    means for rotating a grill disposed within a cyclone body.    
     
     
         17 . The cyclone dust collecting apparatus according to  claim 16 , further comprising a means for supporting the rotating grill.  
     
     
         18 . The cyclone dust collecting apparatus according to  claim 16 , further comprising a means for filtering fine dust.  
     
     
         19 . The cyclone dust collecting apparatus according to  claim 16 , further comprising a means for dropping fine dust into a dust receptacle.  
     
     
         20 . The cyclone dust collecting apparatus according to  claim 16 , further comprising a means for minimizing flowing past the rotating grill.