| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilator ventilation fan to be mounted on the ventilator of a glass door in view of the fact that a conventional ventilation fan is often not set in a private room since a ventilation hole for mounting the ventilation fan is needed on a wall part when mounting the ventilation fan, and even if it is set, it is inferior in the airtightness to the outside air and cooling/heating efficiency of the room because of adaptation of an external wind preventing blade type shutter, resulting in the ventilation of the room only by natural ventilation, and the forced ventilation of the private room is also desired due to problems such as sick house syndrome by new building materials or second-hand smoke in home. SOLUTION: This ventilation fan does not have the external wind preventing blade type shutter which has many problems, and is adapted so that a ventilator can be closed in no use, and forced ventilation can be performed. According to this, the airtightness and the cooling/heating efficiency of the room can be kept only by closing the ventilator in no use. Further, a mounting frame is used to facilitate the attachment or removal of the ventilator ventilation fan. COPYRIGHT: (C)2005,JPO&NCIPI
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