Cleaner

Abstract

A cleaner includes: a main body housing having a suction port; a motor assembly that is housed in the main body housing and includes a fan motor that rotates about a rotation axis to generate a suction force at the suction port; and one or more first flow paths through which air discharged from the motor assembly flows. The one or more first flow paths are provided between the motor assembly and the main body housing in a radial direction of the rotation axis only in a part in a circumferential direction of the rotation axis and extend in a front-rear direction parallel to the rotation axis.

What is claimed is: 
     
         1 . A cleaner comprising:
 a main body housing having a suction port;   a motor assembly that is housed in the main body housing and includes a fan motor that rotates about a rotation axis to generate a suction force at the suction port; and   one or more first flow paths through which air discharged from the motor assembly flows, the one or more first flow paths being provided between the motor assembly and the main body housing in a radial direction of the rotation axis only in a part in a circumferential direction of the rotation axis, and extending in a front-rear direction parallel to the rotation axis.   
     
     
         2 . The cleaner according to  claim 1 , wherein
 the first flow path(s) is (are) provided above and/or below the motor assembly.   
     
     
         3 . The cleaner according to  claim 1 , further comprising:
 an inlet pipe portion through which air sent to the suction port flows; and   a dust cup disposed forward of the suction port, wherein   the inlet pipe portion and the dust cup are disposed in an up-down direction, and   the first flow paths are provided above and below the motor assembly, respectively.   
     
     
         4 . The cleaner according to  claim 1 , wherein
 the main body housing has a first rib protruding from an inner surface of the main body housing and facing a part of an outer surface of the motor assembly, and a second rib protruding from the inner surface of the main body housing and disposed outside the first rib in the radial direction, and   the first flow path is provided between the first rib and the second rib in the radial direction.   
     
     
         5 . The cleaner according to  claim 1 , wherein
 the main body housing has a first rib protruding from an inner surface of the main body housing and facing a part of an outer surface of the motor assembly,   the first flow path is provided outside the first rib in the radial direction,   the cleaner further comprises a second flow path provided between the motor assembly and the first rib in the radial direction of the rotation axis extending in the front-rear direction parallel to the rotation axis, and through which air discharged from the motor assembly flows, and   the air discharged from the motor assembly flows forward through the second flow path, passes through a front end portion of the first rib, and then flows rearward through the first flow path.   
     
     
         6 . The cleaner according to  claim 1 , further comprising:
 a first sound absorbing member disposed in the first flow path.   
     
     
         7 . The cleaner according to  claim 6 , wherein
 the first sound absorbing member has first circulation holes penetrating a front surface and a rear surface of the first sound absorbing member.   
     
     
         8 . The cleaner according to  claim 7 , wherein
 the first circulation holes are provided at a plurality of positions different from each other in each of an up-down direction and a left-right direction of the first sound absorbing member.   
     
     
         9 . The cleaner according to  claim 6 , wherein
 a front-rear dimension of the first sound absorbing member is larger than an up-down dimension and a left-right dimension of the first sound absorbing member.   
     
     
         10 . The cleaner according to  claim 7 , wherein
 the main body housing has an exhaust port for discharging air that has flowed through the first flow path,   the cleaner further comprises a second sound absorbing member disposed at a position facing the exhaust port inside the main body housing,   the second sound absorbing member has second circulation holes penetrating a front surface and a back surface of the second sound absorbing member, and   a size of the first circulation hole is different from a size of the second circulation hole.   
     
     
         11 . The cleaner according to  claim 1 , further comprising:
 a first elastic member that is in contact with each of a front end portion of the motor assembly and the main body housing.   
     
     
         12 . The cleaner according to  claim 11 , wherein
 the main body housing has a partition wall portion, which is disposed forward of the motor assembly and in which the suction port is formed,   at least a part of the first elastic member is in contact with an inner surface of the suction port, and   at least a part of the first elastic member is in contact with a rear surface of the partition wall portion.   
     
     
         13 . The cleaner according to  claim 12 , wherein
 the first elastic member includes an annular large diameter portion in contact with the rear surface of the partition wall portion, and an annular small diameter portion protruding forward from the large diameter portion and in contact with the inner surface of the suction port.   
     
     
         14 . The cleaner according to  claim 11 , wherein
 the first elastic member includes a metal mesh portion, a synthetic resin portion to which the metal mesh portion is fixed, and a rubber portion to which the synthetic resin portion is fixed.   
     
     
         15 . The cleaner according to  claim 11 , further comprising:
 a second elastic member disposed rearward of the first elastic member and in contact with each of the motor assembly and the main body housing.   
     
     
         16 . The cleaner according to  claim 15 , wherein
 the second elastic member is disposed so as to be in contact with a position where vibration is the smallest in the motor assembly when the fan motor rotates.   
     
     
         17 . The cleaner according to  claim 15 , wherein
 a radially inner end portion of the second elastic member is in contact with the motor assembly, and   a radially outer end portion of the second elastic member is supported by the main body housing.   
     
     
         18 . The cleaner according to  claim 15 , wherein
 the second elastic member(s) is (are) in contact with an outer surface of the motor assembly at four locations in an intermediate portion of the motor assembly in the front-rear direction.   
     
     
         19 . The cleaner according to  claim 15 , wherein
 the second elastic member includes:
 a body portion supported by the main body housing; and 
 a support portion having a curved surface in contact with the motor assembly.