| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ventilating device driven by a simultaneous air supply/discharge type single-shaft motor capable of preventing dew condensation generated on a main plate of an impeller. <P>SOLUTION: This ventilating device comprises an air supply flue connecting an external side and an indoor side of a building through an outdoor suction opening and an indoor supply opening, an air discharge flue connecting the indoor side and the external side of the building through an indoor suction opening and an outdoor supply opening, a blower 8 forming the air supply flow from the outdoor suction opening toward the indoor supply opening in the air supply flue, and a blower 9 forming air discharge flow from the indoor suction opening toward the outdoor supply opening in the air discharge flue. The blowers 8, 9 are respectively driven by the single single-shaft motor 10, and two impellers 11, 12 separated by a partition 14 are rotated. A small hole 19 is formed near a boss 18 of the main plate 17 of the impeller 11 in the air blower 8 at the air supply flue side of the blowers 8, 9. <P>COPYRIGHT: (C)2007,JPO&INPIT |
