Suction brush assembly having ultrasonic oscillator and a vacuum cleaner having the same

Abstract

A suction port assembly for a vacuum cleaner, that includes a housing that has a suction port, and a rotary drum rotatably mounted on the housing. The rotary drum has a first bristle member on its outer circumference, which is adapted to contact a surface to be cleaned. An ultrasonic generation unit vibrates the first bristle member.

1 . A suction port assembly for a vacuum cleaner, comprising: 
 a housing including a suction port which draws in dust by a suction force generated from a driving source;    a rotary drum rotatably mounted on the housing and having a first bristle member adapted to contact a surface to be cleaned; and    an ultrasonic generation unit vibrating the first bristle member.    
   
   
       2 . The suction port assembly of  claim 1 , further comprising a second bristle member supported by the housing in front of the suction port, and the second bristle member being vibrated by the ultrasonic generation unit.  
   
   
       3 . The suction port assembly of  claim 2 , wherein the ultrasonic generation unit comprises: 
 an ultrasonic signal generator outputting an ultrasonic signal of predetermined frequency; and    first and second ultrasonic oscillators vibrated in accordance with the signal output from the ultrasonic signal generator, thereby respectively vibrating the first and the second bristle members.    
   
   
       4 . The suction port assembly of  claim 3 , wherein the first bristle member is spirally formed on an outer circumference of the rotary drum, and the first ultrasonic oscillator is formed along the first bristle member inside the rotary drum.  
   
   
       5 . A vacuum cleaner comprising: 
 a cleaner body having a driving source for generating a suction force;    a housing in fluid communication with the cleaner body and having a suction port for drawing in dust by the suction force of the driving source;    a rotary drum rotatably mounted on the housing and having a first bristle member on an outer circumference thereof adapted to contact a surface to be cleaned through the suction port;    a second bristle member provided to the housing and disposed in front of the suction port; and    an ultrasonic generation unit vibrating the first and the second bristle members.    
   
   
       6 . The vacuum cleaner of  claim 5 , wherein the ultrasonic generation unit comprises: 
 an ultrasonic signal generator outputting an ultrasonic signal of predetermined frequency; and    first and second ultrasonic oscillators vibrated in accordance with the signal output from the ultrasonic signal generator, thereby respectively vibrating the first and the second bristle members.    
   
   
       7 . The vacuum cleaner of  claim 6 , wherein the first bristle member is spirally formed on an outer circumference of the rotary drum and the first ultrasonic oscillator is formed along the first bristle member inside the rotary drum.