Air blower

Abstract

Air blower incorporates in housing thereof: suction port; a high pressure air generating portion; a blowout port; first air passage; introduction air suction port; introduction air mixing portion; introduction air blowout port; and second air passage.

1 . An air blower, in a housing of the air blower, comprising:
 a suction port through which air outside the housing is taken in;   a high pressure air generating portion which includes an impeller for turning the air into a high pressure air and a motor for driving the impeller;   an annular blowout port through which the high pressure air is blown out;   a first air passage for guiding the high pressure air from the impeller to the blowout port; a plurality of introduction air suction ports for sucking air drawn by the high pressure air blown out from the blowout port;   an introduction air mixing portion where the air sucked through the plurality of introduction air suction ports is mixed;   an introduction air blowout port through which the drawn-in air in the introduction air mixing portion is blown out; and   a second air passage which connects the introduction air suction ports, the introduction air mixing portion and the introduction air blowout port.   
     
     
         2 . The air blower according to  claim 1 , wherein
 the suction port is formed of a plurality of suction ports which are arranged about a suction position farthest from a blowout center position of the blowout port.   
     
     
         3 . The air blower according to  claim 2 , wherein
 the plurality of introduction air suction ports are disposed at equal intervals around an outer peripheral surface of the housing between a horizontal position parallel to the impeller and the blowout port, and a center of each of the introduction air suction ports is located at an equal distance from the blowout center position.   
     
     
         4 . The air blower according to  claim 1 , wherein
 the housing has an outer wall and an inner wall, the first air passage is defined by the outer wall, the inner wall and a penetration wall, the second air passage is defined by the inner wall and the penetration wall, the second air passage and the first air passage intersect with each other in a penetration hole whose periphery is formed of the penetration wall, and the introduction air blowout ports are formed of the inner wall.   
     
     
         5 . The air blower according to  claim 4 , wherein
 the penetration wall is formed of a plurality of penetration walls of which inclination angles are equal.   
     
     
         6 . The air blower according to  claim 1 , wherein
 sizes of the plurality of introduction air suction ports differ from each other.   
     
     
         7 . The air blower according to  claim 1 , wherein
 the introduction air mixing portion is provided with an electric discharge portion.   
     
     
         8 . The air blower according to  claim 1 , wherein
 the housing has a spherical shape.   
     
     
         9 . The air blower according to  claim 1  further comprising an illumination portion in the second air passage. 
     
     
         10 . The air blower according to  claim 1  further comprising an air heating portion disposed between the high pressure air generating portion and the introduction air suction port in the first air passage.