Vacuum cleaner

Abstract

Disclosed herein is a vacuum cleaner. The vacuum cleaner includes a dust container having an air inlet and an air outlet, a filter inside the dust container, a case part on the filter, a dust removing part rotated inside the filter while contacting the filter, and a drive unit rotating the dust removing part. The dust removing part removes dust from the filter while being rotated by air, thereby preventing the filter from undergoing functional deterioration.

1 . A vacuum cleaner comprising:
 a dust container having an air inlet and an air outlet;   a filter disposed inside the dust container;   a case part disposed on the filter;   a dust removing part rotated inside the filter while contacting the filter; and   a drive unit rotating the dust removing part.   
   
   
       2 . The vacuum cleaner according to  claim 1 , wherein the dust removing part includes a rotational shaft rotated by the drive unit, and a striking part coupled to the rotational shaft and disposed inside the filter to dislodge dust from the filter. 
   
   
       3 . The vacuum cleaner according to  claim 2 , wherein the rotational shaft is rotatably provided to the case part. 
   
   
       4 . The vacuum cleaner according to  claim 2 , further comprising:
 a rotating fan disposed inside the filter and axially coupled to the rotational shaft.   
   
   
       5 . The vacuum cleaner according to  claim 2 , further comprising:
 a rotating fan disposed outside the filter and axially coupled to the rotational shaft.   
   
   
       6 . The vacuum cleaner according to  claim 2 , wherein the striking part is made of a soft material. 
   
   
       7 . The vacuum cleaner according to  claim 1 , wherein the case part includes a first case disposed on one side of the filter, and a second case disposed on the other side thereof to secure the filter to the dust container. 
   
   
       8 . The vacuum cleaner according to  claim 1 , wherein the case part is provided with a bearing which supports the dust removing part. 
   
   
       9 . The vacuum cleaner according to  claim 1 , wherein the case part is formed with a penetration hole through which the dust removing part passes. 
   
   
       10 . The vacuum cleaner according to  claim 9 , wherein the penetration hole is provided with a sealing member. 
   
   
       11 . The vacuum cleaner according to  claim 1 , wherein the filter includes a supporting member disposed therein to support the filter. 
   
   
       12 . The vacuum cleaner according to  claim 11 , wherein the support member is a separable member. 
   
   
       13 . The vacuum cleaner according to  claim 1 , wherein the filter is a HEPA filter. 
   
   
       14 . The vacuum cleaner according to  claim 1 , wherein the filter has a cylindrical shape with a plurality of creases formed along a circumference thereof. 
   
   
       15 . The vacuum cleaner according to  claim 1 , wherein the air inlet has a spiral shape. 
   
   
       16 . A vacuum cleaner comprising:
 a dust container comprising an inlet and an outlet, and configured to receive air and dust through the inlet and exhaust the air through the outlet;   a wrinkled filter located between the inlet and the outlet, and configured to filter dust while substantially allowing the air to pass therethrough; and   a rotary arm duster configured to rotate about an axis and repeatedly hit the wrinkled filter so as to release at least part of dust attached on the wrinkled filter.   
   
   
       17 . The vacuum cleaner of  claim 16 , further comprising an electric motor configured to rotate the rotary arm duster. 
   
   
       18 . The vacuum cleaner of  claim 16 , wherein the wrinkled filter comprises a wrinkled cylindrical wall defining a hollow space in fluid communication with the dust container, wherein the rotary arm duster is located within the hollow space. 
   
   
       19 . A method of vacuum cleaning, the method comprising:
 vacuum-cleaning a surface using the vacuum cleaner of  claim 16 ; and   rotating the rotary arm duster such that the rotary arm duster repeatedly hits the wrinkled filter so as to release at least part of dust attached on the wrinkled filter.   
   
   
       20 . The method of  claim 19 , wherein rotating the rotary arm duster while vacuum-cleaning.