Blower

Abstract

A blower ( 1 ) has a blow fan ( 20 ) provided in a casing ( 10 ), a drive device ( 30 ) for rotating the blow fan ( 20 ), and a blow duct ( 40 ) for discharging airflow outside, which the air flow is generated by the rotating blow fan ( 20 ), wherein a dust proof cover ( 60 ) is attached to a suction inlet ( 11 ) formed in the casing ( 10 ), and openings ( 64 a , 65 a ) for drawing outside air are formed in the left and right side faces ( 64, 65 ) of the dust proof cover ( 60 ), and the left and right side faces ( 64, 65 ) are inclined inward in the right-and-left width direction as they extend downward. According to such a configuration, the openings ( 64 a , 65 a ) of the dust proof cover ( 60 ) are prevented from being clogged with dust such as dead leaves to prevent overheating of the drive device ( 30 ).

1 . A blower comprising:
 a blow fan provided in a casing;   a drive device for rotating the blow fan; and   a blow duct for discharging airflow outside, the airflow being generated by the rotating blow fan,   wherein a dust proof cover is attached to a suction inlet formed in the casing, and openings for drawing outside air are formed in left and right side faces of the dust proof cover, and   wherein the left and right side faces of the dust proof cover are inclined inward in a right-and-left width direction as the left and right side faces extend downward.   
   
   
       2 . The blower according to  claim 1 , wherein the left and right side faces of the dust proof cover are provided with eaves-form protrusion portions. 
   
   
       3 . The blower according to  claim 1  further comprising:
 a temperature control mechanism comprising:   a temperature detection means for detecting a temperature of the drive device; and   a control unit configured to stop the drive device or to reduce a rotation number thereof when a temperature of the drive device detected by the temperature detection means is not less than a predetermined temperature.   
   
   
       4 . The blower according to  claim 1  further comprising:
 a temperature control mechanism comprising:   a rotation number detection means for detecting a rotation number of the drive device; and   a control unit configured to stop the drive device or to reduce the rotation number of the drive device when the rotation number of the drive device detected by the rotation number detection means is not less than a predetermined rotation number.