吸油烟机降噪技术在专利申请领域的分析

The Analysis of Hood Noise Reduction Technology in the Field of Patent

降噪是吸油烟机的发展必须要解决的问题。该文总结了近30年来中外的专利申请,进而了解到中国在吸油烟机降噪方面的专利申请占据了绝大部分,并且得出了风机结构的安装、吸声材料、消音板、导流装置是最常用的几种降噪的方法。

The problem of noise reduction must be to resolve in development of range hood.This paper summarizes the nearly 30 years of patent applications at home and abroad,learned that china ocuppies the most,and concluded that the installation of fan, sound absorption, silencers, guide vanes are the most commonly used methods for noise reduction.