Cleaner

Abstract

The present disclosure relates to a cleaner, more particularly, a cleaner capable of minimizing the pressure loss by minimizing the number of bending of the flow direction of the air flowing inside the cleaner and, at the same time, providing comfort to the user since the vibration occurring in the suction motor during the cleaning operation is not transmitted to the user, and the cleaner includes a pre-filter disposed upstream of the suction motor and configured to filter dust contained in the air, and a HEPA filter disposed downstream of the suction motor and configured to filter dust contained in the air, and at least one among the pre-filter and HEPA filter is disposed on an extension line of a center axis about which the suction motor rotates.

What is claimed is: 
     
         1 . A cleaner, comprising:
 a housing;   a suction unit disposed in one side of the housing and configured to allow air containing dust to be sucked;   a suction motor disposed inside the housing and configured to generate an air flow for allowing the air to be introduced into the suction unit;   a cyclone unit coupled to the housing, disposed between the suction unit and the suction motor, and configured to communicate with the suction unit to separate dust from the air;   a pre-filter disposed upstream of the suction motor, disposed insertably in an insertion axis direction into the housing, and configured to filter dust from the sucked in air; and   a handle disposed in one side of the housing, and formed long in one direction,   wherein when the pre-filter is mounted to the cleaner, an extension line extending in a direction into which the pre-filer is inserted crosses a longitudinal axis of the handle.   
     
     
         2 . The cleaner of  claim 1 ,
 wherein the insertion axis of the pre-filter and the longitudinal axis form an obtuse angle.   
     
     
         3 . The cleaner of  claim 1 ,
 wherein the pre-filter is disposed insertably in the housing from a forward position of the housing in the insertion axis direction, and   wherein a forward end of the insertion axis of the pre-filer is disposed to position upper than a rear end of the insertion axis of the pre-filer.   
     
     
         4 . The cleaner of  claim 1 , further comprising:
 a HEPA filter disposed downstream of the suction motor, and coupled to the suction motor in an opposite direction to a direction into which the pre-filter is inserted.   
     
     
         5 . The cleaner of  claim 4 ,
 wherein a coupling axis of the HEPA filter and the longitudinal axis of the handle form an obtuse angle.   
     
     
         6 . The cleaner of  claim 1 ,
 wherein the pre-filter is formed long in the insertion axis direction, and formed to have a tubular shape with a space formed inside.   
     
     
         7 . The cleaner of  claim 6 , further comprising:
 a diffusion space formed between an outer circumferential surface of the pre-filter and the housing.   
     
     
         8 . The cleaner of  claim 1 ,
 wherein the suction motor is disposed on an extension line of the insertion axis of the pre-filter.   
     
     
         9 . The cleaner of  claim 6 ,
 wherein the air passes through the pre-filer on a radially outer side of the insertion axis of the pre-filter to be introduced into an inside, and   wherein the air inside the pre-filter is discharged in the insertion axis direction of the pre-filter.   
     
     
         10 . The cleaner of  claim 1 ,
 wherein the pre-filter is disposed at an upper part of the cyclone unit.   
     
     
         11 . The cleaner of  claim 1 ,
 wherein the cyclone unit comprises an axis of a cyclone flow about which the air is rotated for separating dust, and   wherein the axis of the cyclone flow passes through the pre-filter.   
     
     
         12 . The cleaner of  claim 1 ,
 wherein a flow direction of the air introduced into the HEPA filter is parallel to a flow direction of the air discharged from the suction motor.   
     
     
         13 . The cleaner of  claim 1 , further comprising:
 a battery spaced apart from the suction motor below the suction motor,   wherein a lower surface of the handle is coupled to an upper end of the battery and an upper surface thereof is spaced apart from a lower end of the suction motor.   
     
     
         14 . The cleaner of  claim 1 ,
 wherein the handle protrudes forward between the lower surface and the upper surface of the handle, and a forward end of the handle is connected to the housing.   
     
     
         15 . The cleaner of  claim 14 ,
 wherein a handle support member is disposed at an upper position than a middle point between the upper surface and the lower surface of the handle.   
     
     
         16 . The cleaner of  claim 1 ,
 wherein a forward end of an upper surface of the handle is disposed at an upper position than a rear end of the upper surface of the handle, and   wherein an operating part is disposed on an upper surface of the handle.   
     
     
         17 . The cleaner of  claim 1 ,
 wherein the longitudinal axis of the handle crosses a center axis of the suction motor.