| 摘要 |
PROBLEM TO BE SOLVED: To provide a sirocco fan having large air capacity without enlarging an outer diameter of a cross flow fan blade. SOLUTION: In a sirocco fan 1 composed of a motor 7 having a 7 cross flow first fan blade 3 arranged on one end of a rotary shaft 9, a rotor 8 being arranged on the other end of the rotary shaft 9 and having a permanent magnet 10 fitted to the outer periphery of the rotary shaft 9, an armature core 12 and an armature coil 13 opposed to the rotor 8 via a void, the rotary shaft 9 is constituted in a hollow cylindrical shape so that the inside becomes an inflow passage of air, and an axial second fan blade 17 is inserted/arranged in an inner diameter part of the rotary shaft 9 so as to be opposed in a concentrically circular shape to a motor 7 part.
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