AIR SUPPLY/EXHAUST TYPE VENTILATOR

PROBLEM TO BE SOLVED: To provide an air supply/exhaust type ventilator capable of reducing vibration due to resonance of an air supply motor and an exhaust motor.SOLUTION: A air supply/exhaust type ventilator includes in a main body 2, an air supply fan 12 and an exhaust fan 13 arranged respectively in an air supply air channel 8 and an exhaust air channel 9, an air supply motor 14 configured to drive the air supply fan 12, and an exhaust motor 15 configured to drive the exhaust fan 13; and has on an outer fence 3, vibration detection means 18. The air supply exhaust type ventilator detects vibration with the vibration detection means 18, and when the vibration is equal to or larger than a vibration threshold preset by vibration determination means 19, increases or decreases the rotational frequency of the air supply motor 14 or exhaust motor 15, thereby to reduce vibration occurring in resonance of the motors.SELECTED DRAWING: Figure 2 【課題】給気用モータ、排気用モータの共振による振動を低減することができる給排気型換気装置を提供する。【解決手段】本体２内に、給気風路８と排気風路９それぞれに配置した給気ファン１２と排気ファン１３と、給気ファン１２を駆動する給気用モータ１４と、排気ファン１３を駆動する排気用モータ１５を備え、外郭３に振動検知手段１８を有し、前記振動検知手段１８で振動を検知し、振動判定手段１９であらかじめ設定した振動閾値以上である場合に、給気用モータ１４又は排気用モータ１５の回転数を増加又は減少させることで、モータの共振時に発生する振動を低減する。【選択図】図２