Vacuum cleaner having a motor noise reduction system

Abstract

Inside the main body of a vacuum cleaner is a motor casing covering the motor; on one side of the motor casing a removable filter is attached, through which air from inside the motor casing passes before being discharged inside the main body of the vacuum cleaner.

1 . A vacuum cleaner with a motor noise reduction system, comprising:
 a motor casing, positioned inside a main body of the vacuum cleaner, covering a motor; and   a filter member removably fastened to a side of the motor casing;   wherein air from within the motor casing is discharged within the main body of the vacuum cleaner through the filter member.   
   
   
       2 . The vacuum cleaner with a motor noise reduction system according to  claim 1 , wherein the filter member is arranged in such a way as to leave a space between a surface of the filter member and an inside surface of the main body of the vacuum cleaner. 
   
   
       3 . The vacuum cleaner with a motor noise reduction system according to  claim 1 , wherein the motor casing further comprises a mount part accommodating the filter member on one side of the motor casing. 
   
   
       4 . The vacuum cleaner with a motor noise reduction system according to  claim 3 , wherein the mount part further comprises:
 a plurality of first exhaust openings on an upper surface; and   a plurality of second exhaust openings on another surface, to discharge air that has passed through the filter member.   
   
   
       5 . The vacuum cleaner with a motor noise reduction system according to  claim 1 , wherein the filter member comprises one or more support projections integrally formed on a lower surface of the filter member. 
   
   
       6 . The vacuum cleaner with a motor noise reduction system according to  claim 1 , further comprising one or more spacers interposed between a lower surface of the filter member and an inside surface of a main body of the vacuum cleaner facing the lower surface of the filter member. 
   
   
       7 . The vacuum cleaner with a motor noise reduction system according to  claim 6 , wherein the spacers are vibration-absorbent members or sound-absorbent members. 
   
   
       8 . The vacuum cleaner with a motor noise reduction system according to  claim 1 , further comprising a door installed on part of the main body of the vacuum cleaner facing a lower surface of the filter member, which opens outwardly from a mount part to an exterior of the vacuum cleaner. 
   
   
       9 . The vacuum cleaner with a motor noise reduction system according to  claim 8 , wherein the door is attached to the main body of the vacuum cleaner with a sliding mechanism on both sides of the housing of the vacuum cleaner. 
   
   
       10 . The vacuum cleaner with a motor noise reduction system according to  claim 8 , wherein the door is attached with a hinge mechanism to one side of the main body of the vacuum cleaner. 
   
   
       11 . The vacuum cleaner with a motor noise reduction system according to  claim 8 , wherein the door is attached by screws to one side of the main body of the vacuum cleaner. 
   
   
       12 . A motor noise reduction system for a vacuum cleaner, comprising:
 a motor casing, positionable inside a main body of the vacuum cleaner, covering a motor; and   a filter member removably fastened to a side of the motor casing;   wherein air from within the motor casing is discharged within the main body of the vacuum cleaner through the filter member.   
   
   
       13 . The motor noise reduction system according to  claim 12 , wherein the filter member is arranged in such a way as to leave a space between a surface of the filter member and an inside surface of the housing. 
   
   
       14 . The motor noise reduction system according to  claim 12 , wherein the motor casing further comprises a mount part accommodating the filter member on one side of the motor casing. 
   
   
       15 . The motor noise reduction system according to  claim 14 , wherein the mount part further comprises:
 a plurality of first exhaust openings on an upper surface; and   a plurality of second exhaust openings on another surface, to discharge air that has passed through the filter member.   
   
   
       16 . The motor noise reduction system according to  claim 12 , wherein the filter member comprises one or more support projections integrally formed on a lower surface of the filter member. 
   
   
       17 . The motor noise reduction system according to  claim 12 , further comprising one or more spacers interposed between a lower surface of the filter member and an inside surface of a main body of the vacuum cleaner facing the lower surface of the filter member. 
   
   
       18 . The motor noise reduction system according to  claim 17 , wherein the spacers are vibration-absorbent members or sound-absorbent members.