Vacuum cleaner

Abstract

An electric blower employed in a vacuum cleaner for creating a suction air stream in order to collect dust particles reduces level of noise heard by the operator, by reducing flow resistance in the vacuum cleaner, facilitated by the limiting the volume thereof to about 20% of that of the main body of the vacuum cleaner. Moreover, by limiting the volume of the blower, dust storage capacity can be expanded without having to significantly change the dimensions of the main body used by a convention vacuum cleaner. Thus providing greater comfort and convenience to the operator.

What is claimed is:  
     
         1 . A vacuum cleaner, comprising: 
 a main body including an electric blower for generating suction air stream and a dust chamber for storing collected dust particles therein; and    a suction nozzle communicated with the dust chamber for sucking in dir-laden air,    wherein the electric blower is not greater than about 20% of the main body by volume.    
     
     
         2 . A vacuum cleaner, comprising: 
 a main body including a dust chamber for collecting dust therein and a housing chamber for hosting an electric blower for generating suction air stream and a power supplying member for supplying power thereto; and    a suction nozzle communicated with the dust chamber for sucking in dirt-laden air,    wherein the electric blower is not greater than about 30% of the dust chamber and that of the housing chamber by volume.    
     
     
         3 . The vacuum cleaner of  claim 1 , wherein at least one of ratios of a width and a length of the electric blower to a width and a length of the dust chamber, respectively, is not greater than about 50%.  
     
     
         4 . The vacuum cleaner of  claim 1 , further comprising: 
 an exhaust, provided at a rear portion of the main body for releasing therethrough the suction air stream generated by the electric blower; and    a shielding wall disposed between the electric blower and the exhaust, the shielding wall blocking the direct pathway of the suction air stream from the electric blower to the exhaust.    
     
     
         5 . The vacuum cleaner of  claim 1 , further comprising: 
 an exhaust, provided at a rear portion of the main body for releasing therethrough the suction air stream generated by the electric blower; and    a motor cover for enclosing the electric blower, the motor cover having an aperture at a bottom surface portion thereof for the interior of the motor cover to be communicated with the exhaust.    
     
     
         6 . The vacuum cleaner of  claim 1 , further comprising: 
 an exhaust, provided at a rear portion of the main body for releasing therethrough the suction air stream generated by the electric blower; and    a double layered motor cover having an inner wall and an outer wall for enclosing the electric blower, the inner wall is provided a first aperture formed therein for releasing the suction air stream generated by the electric blower, and the outer wall having a second aperture formed therein, the first and the second aperture being located at two opposite sides of the motor cover, respectively.    
     
     
         7 . The vacuum cleaner of  claim 1 , further comprising: 
 an exhaust, provided at a rear portion of the main body, for releasing therethrough the suction air stream generated by the electric blower; and    a motor cover for enclosing the electric blower, the motor cover being provided with a plurality of cavities formed in a rear portion thereof and walls enclosing the cavities being provided with opening allowing the electric blower to be air-communicated with the exhaust.    
     
     
         8 . The vacuum cleaner of  claim 2 , wherein at least one of ratios of a width and a length of the electric blower to a width and a length of the housing chamber, respectively, is not greater than about 30%.  
     
     
         9 . The vacuum cleaner of  claim 2 , wherein at least one of ratios of a width and a length of the electric blower to a width and a length of the dust chamber, respectively, is not greater than about 50%.  
     
     
         10 . The vacuum cleaner of  claim 2 , wherein a ratio of a height of the electric blower to a height of the housing chamber is not greater than about 50%.  
     
     
         11 . The vacuum cleaner of  claim 2 , wherein the main body is provided with a base and an upper portion, the base having a front region where the dust chamber resides and a rear region where the housing chamber for hosting therein the electric blower and the power supplying member is located, the upper portion covering the top of the housing chamber, and 
 wherein the electric blower is supported by the base on a bottom portion thereof.    
     
     
         12 . The vacuum cleaner of  claim 2 , wherein the main body is provided with a base and an upper portion, the base having a front region where the dust chamber resides and a rear region where the housing chamber for hosting therein the electric blower and the power supplying member is located, the upper portion covering the top of the housing chamber, and 
 wherein the electric blower is supported by the base at an upper portion thereof.    
     
     
         13 . The vacuum cleaner of  claim 2 , wherein the main body is provided with a base and an upper portion, the base having a front region where the dust chamber resides and a rear region where the housing chamber for hosting therein the electric blower and the power supplying member is located, the upper portion covering the top of the housing chamber, and 
 wherein the electric blower is supported by the base at a center portion between a ceiling of the upper portion and a bottom surface of the base.    
     
     
         14 . The vacuum cleaner of  claim 2 , wherein the main body further includes an attachment storage compartment for storing therein the suction nozzle, and 
 wherein the electric blower is not greater than about 30% of the attachment storage compartment by volume.    
     
     
         15 . The vacuum cleaner of  claim 14 , wherein the main body is provided with a base and an upper portion, the base having a front region where the dust chamber resides and a rear region where the housing chamber for hosting therein the electric blower and the power supplying member is located, the upper portion having therein the attachment storage compartment and covering the top of the housing chamber, and 
 wherein the electric blower is supported by the base at a lower portion thereof.    
     
     
         16 . The vacuum cleaner of  claim 2 , wherein the main body is provided with a base and an upper portion, the base having a front region where the dust chamber resides and a rear region where the housing chamber for hosting therein the electric blower and the power supplying member is located, and the upper portion covering the top of the housing chamber, and 
 wherein a pair of wheels is provided to lateral sides of the main body and the electric blower supported by the base is at a lower portion thereof near the axis of rotation of the pair of wheels.    
     
     
         17 . The vacuum cleaner of  claim 2 , wherein the main body is provided with a base and an upper portion, the base having a front region where the dust chamber resides and a rear region where the housing chamber for hosting therein the electric blower and the power supplying member is located, and the upper portion covering the top of the housing chamber, and 
 wherein a handle is provided at a front upper portion of the main body, and the electric blower is located at an upper portion of the housing chamber.    
     
     
         18 . The vacuum cleaner of  claim 2 , wherein the main body is provided with a base and an upper portion, the base having a front region where the dust chamber resides and a rear region where the housing chamber for hosting therein the electric blower and the power supplying member is located, and the upper portion covering the top of the housing chamber, and 
 wherein a handle is provided at a lower upper portion of the main body, and the electric blower is positioned at a lower portion of the housing chamber.    
     
     
         19 . The vacuum cleaner of  claim 2 , wherein the main body is provided with a base and an upper portion, the base having a front region where the dust chamber resides and a rear region where the housing chamber for hosting therein the electric blower and the power supplying member is located, and the upper portion covering the top of the housing chamber, and 
 wherein a handle is pivotally provided at an upper portion of the main body and the electric blower is placed below the axis of rotation of the handle.    
     
     
         20 . The vacuum cleaner of  claim 2 , wherein the main body is provided with a base and an upper portion, the base having a front region where the dust chamber resides and a rear region where the housing chamber for hosting therein the electric blower and the power supplying member is located, and the upper portion covering the top of the housing chamber, and 
 wherein a handle is provided on the upper portion, and the electric blower is placed near the handle.    
     
     
         21 . The vacuum cleaner of  claim 2 , further comprising: 
 an exhaust, provided at a rear portion of the main body for releasing therethrough the suction air stream generated by the electric blower; and    a shielding wall disposed between the electric blower and the exhaust, the shielding wall blocking the direct pathway of the suction air stream from the electric blower to the exhaust.    
     
     
         22 . The vacuum cleaner of  claim 2 , further comprising: 
 an exhaust, provided at a rear portion of the main body for releasing therethrough the suction air stream generated by the electric blower; and    a motor cover for enclosing the electric blower, the motor cover having an aperture at a bottom surface portion thereof for the interior of the motor cover to be communicated with the exhaust.    
     
     
         23 . The vacuum cleaner of  claim 2 , further comprising: 
 an exhaust, provided at a rear portion of the main body for releasing therethrough the suction air stream generated by the electric blower; and    a double layered motor cover having an inner wall and an outer wall for enclosing the electric blower, the inner wall is provided a first aperture formed therein for releasing the suction air stream generated by the electric blower, and the outer wall having a second aperture formed therein, the first and the second aperture being located at two opposite sides of the motor cover, respectively.    
     
     
         24 . The vacuum cleaner of  claim 2 , further comprising: 
 an exhaust, provided at a rear portion of the main body, for releasing therethrough the suction air stream generated by the electric blower; and    a motor cover for enclosing the electric blower, the motor cover being provided with a plurality of cavities formed in a rear portion thereof and walls enclosing the cavities being provided with opening allowing the electric blower to be air-communicated with the exhaust.    
     
     
         25 . A vacuum cleaner, comprising: 
 a main body including a housing chamber having therein an electric blower for generating suction air stream and a power supply member for providing power to the electric blower, a dust chamber for collecting dust therein, and an attachment storage compartment for storing therein a suction nozzle to be used in sucking in dir-laden air,    wherein at least one of ratios of a width and a length of the electric blower to a width and a length of the attachment storage compartment, respectively, is not greater than about 30%.