| 摘要 |
<P>PROBLEM TO BE SOLVED: To largely restrain sticking of dust to an impeller, since dust collecting efficiency is high in a cyclone system, by restraining a projection from a ceiling surface by making a cyclone suction port in an upper part than a suction port of a ceiling-embedded type ventilating fan, in a blower used for a ventilating air blowing apparatus used in the ceiling and on a wall surface. <P>SOLUTION: The blower includes a scroll-shaped body 1, a cylindrical body suction port 4 of air sucked in by the impeller 3 and a discharge port 5 for exhausting the air sucked in from the body suction port 4, and is constituted so that the air sucked in from an indoor side suction port 7 arranged in an opening part of the ceiling 6, flows in the cyclone suction port 9 by passing though a suction flow passage 8. A cyclone system dust collector is arranged for restraining a downward projection from a ventilating fan suction port by making the cyclone suction port in the upper part than the suction port of the ceiling-embedded type ventilating fan. Since the dust in a suction air current is collected, the projection from the ceiling surface is restrained, so that a sense of oppression is restrained, and the sticking of duct to the impeller can be restrained. <P>COPYRIGHT: (C)2012,JPO&INPIT |
