| 摘要 |
PROBLEM TO BE SOLVED: To prevent water from splashing onto a charging part of a drainage pump and the like when water leaks from a filter room.SOLUTION: In the middle of a circulation air flow path 9, a filter room 4 is provided in which a filter part 18 for collecting foreign substances is mounted in a detachable manner, and a groove 19 is provided outside of the filter room 4 for guiding water to a predetermined place. In this configuration, when water enters from outside, accumulates at a step part 5 of the filter room 4, and comes close to spilling over from the step part 5, the water accumulates in the groove 19 outside of the filter room 4, and the water flows along inclination of the groove 19 and falls to a place without a charging part from an inclined surface 26 at a rear part of a product. Thus, water attachment to the charging part is prevented, and failure caused by short circuit of the charging part, layer short due to corrosion of a coil and the like can be eliminated. |
