换气扇技术现状及发展趋势浅析

本文比较了国内换气扇产品标准、能效标准草案与北美IWI认证要求、能源之星标准的差异，分析了集成吊顶换气模块和新风机的现状，列举了直流无刷电机等新技术在换气扇上的应用，指出高效、节能、低噪声、多功能、能量交换是换气扇的发展方向。

Brief analysis on the Current Status and Development Trend of Ventilation Fans

This paper compares the differences of domestic ventilation fan standards and energy efficiency standard draft with HVI certification standards and Energy Star certification standard. Then it analyzes the current status of integrated ceiling ventilation module and fresh air ventilator. And it introduces the applications of DC brushless motor and new technologies on the ventilation fan products. Finally, it points out that high efficiency, energy saving, low noise, multi functions and energy recovery are the developing trends of ventilation fans.