挂机空调噪声源研究

为准确定位壁挂式空调的噪声源，本文介绍了某品牌空调室内挂机的声学特性测试方法，并通过测试数据进行分析，从而得出空调室内挂机主要噪声源是由贯流风扇转动引起的气动旋转噪声、涡流噪声及由交电磁场激励产生的结构振动噪声。本文给出的测试和分析方法以及结论对空调室内机噪声的识别有重要意义。

Study on Noise Source of Wall Mounted Air-conditioning

In order to locate the noise sources of wall mounted air-conditioning accurately, this article described a test method of acoustic performance on certain brand wall mounted air-conditioning, analyzed test data, and come to the conclusion: the main noise source was aerodynamic rotation noise and vortex noise which caused by rotation of the cross flow fan, structural vibration and noise caused by alternating current excitation. The testing and analysis methods as well as the conclusions given in this article have important significance for noise source recognition on the wall mounted air-conditioner.