Cyclone dust collecting apparatus for vacuum cleaner

Abstract

A cyclone dust-collecting apparatus comprises a first chamber fluidly communicated with a suction port, a second chamber fluidly communicated with the first chamber and a vacuum generating source, in which dirt is centrifugally separated form the air drawn in from the first chamber, and a partition having at least one penetrating hole connecting the first and the second chambers and at least one guide member disposed adjacent to the penetrating hole, the partition being formed between the first and the second chambers. Accordingly, when the air dispersed from the first chamber due to the penetrating hole and the guide member, flows into the second chamber, a speed of the swirling air in the second chamber increases. Therefore, the dust-collection efficiency of the cyclone dust collecting apparatus is improved.

1 . A cyclone dust-collecting apparatus, which is disposed on a suction path of a vacuum cleaner connecting a suction port through which air is drawn into a vacuum generating source generating a suction force at the suction port for separating dirt from the air drawn in through the suction port, the cyclone dust-collecting apparatus comprising: 
 a first chamber in fluid communication with the suction port;    a second chamber in fluid communication with the first chamber and the vacuum generating source, the second chamber being adapted to centrifugally separate dirt from the air drawn into the first chamber; and    a partition having at least one aperture connecting the first and second chambers and at least one guide member disposed adjacent to the aperture, the partition being formed between the first and the second chambers,    wherein at least one aperture and the at least one guide member dispersing the air flowing from the first chamber to the second chamber.    
   
   
       2 . The cyclone dust-collecting apparatus of  claim 1 , wherein the at least one guide member is inclined such that the air current forms an acute angle with respect to a side surface of the partition facing the second chamber, while flowing into the second chamber via the aperture.  
   
   
       3 . The cyclone dust-collecting apparatus of  claim 2 , wherein the at least one guide member extends from the side surface of the partition facing the second chamber in an inclined manner, and has a distal end disposed in the second chamber.  
   
   
       4 . The cyclone dust-collecting apparatus of  claim 3 , wherein the at least one aperture is formed in a radial direction with respect to a center of the partition.  
   
   
       5 . The cyclone dust-collecting apparatus of  claim 4 , wherein the partition is shaped as a disk, and the at least one aperture is formed adjacent to an edge of the partition.  
   
   
       6 . The cyclone dust-collecting apparatus of  claim 3 , further comprising: 
 a dirt-collecting receptacle having an air discharge outlet connected to the vacuum generating source and having an open end;    a first cover covering the open end of the dirt-collecting apparatus; and    a second cover separately connected to one of the first cover and the dirt-collecting receptacle to cover one side of the first cover, with the second cover being in fluid communication with the suction port;    wherein the first chamber is an inner space between the first cover and the second cover, the second chamber is an inner space between the first cover and the dirt-collecting receptacle, the partition is a part of an upper wall of the first cover enclosed by the second cover and the dirt-collecting receptacle, and the aperture is disposed in the upper wall of the first cover.    
   
   
       7 . The cyclone dust-collecting apparatus of  claim 6 , wherein the dirt-collecting receptacle is shaped as a cylinder having an upper end open, and the first and second covers are sequentially connected to an upper portion of the dirt-collecting receptacle.  
   
   
       8 . The cyclone dust-collecting apparatus of  claim 7 , wherein the dirt-collecting receptacle comprises: 
 the air discharge outlet penetrating through a bottom of the dirt-collecting receptacle in which the dirt separated from the air is collected; and    an air discharge pipe upwardly protruding from the bottom of the dirt-collecting receptacle, and having an open upper end and a lower end covering the air discharge outlet to partition off the air discharge outlet from an inner space of the dirt-collecting receptacle.    
   
   
       9 . The cyclone dust-collecting apparatus of  claim 8 , wherein the dirt-collecting receptacle includes at least one first backflow prevention member protruding from the bottom of the dirt-collecting receptacle.  
   
   
       10 . The cyclone dust-collecting apparatus of  claim 8 , wherein a grill member having a plurality of slits formed in a side surface thereof is connected to the upper end of the air discharge pipe.  
   
   
       11 . The cyclone dust-collecting apparatus of  claim 10 , wherein an upper end of the grill member is separably connected to a bottom of the first cover, and a lower end of the grill member is open and separably connected to the open upper end of the air discharge pipe when the first cover and the dirt-collecting receptacle are connected to each other.  
   
   
       12 . The cyclone dust-collecting apparatus of  claim 11 , wherein a disk-shaped second backflow prevention member protrudes from at least one of the upper end of the air discharge pipe and the lower end of the grill member.  
   
   
       13 . The cyclone dust-collecting apparatus of  claim 6 , wherein the second cover is shaped in a cylinder having an open lower end, and the air passes through a sidewall of the second cover and flows into the first chamber in a tangential direction with respect to the sidewall of the second cover.  
   
   
       14 . The cyclone dust-collecting apparatus of  claim 6 , wherein the second cover is shaped in a cylinder having an open lower end open, and the air passes through an upper wall of the second cover and flows into the first chamber.