家电科技Issue(z1)：185-188,4.DOI:10.19784/j.cnki.issn1672-0172.2023.99.041
空调室外机高频噪声问题分析及优化
Analysis and optimization of high frequency noise of outdoor unit of air conditioner
杨俊涛 1高旭 1高雪燕 1熊军1
作者信息
- 1. TCL空调器(中山)有限公司 广东中山 528427
- 折叠
摘要
Abstract
In order to solve the problem of high-frequency sharp noise during low-frequency operation of the compressor of air conditioning under heat-pump condition.Firstly,by identifying the vibration source,determine the mechanism of high-frequency sharp sound generation;Secondly,by modulating the carrier frequency,the improvement of sharp noise is achieved.Research has shown that sharp high-frequency noise is caused by the excitation of the compressor and fan by the carrier frequency,and the carrier frequency spectrum exhibits a significant octave relationship.For the compressor carrier frequency(5 kHz)and fan carrier frequency(15 kHz),the second harmonic of the compressor carrier frequency and the fundamental frequency of the fan carrier frequency have a significant contribution to sharp noise.Increasing the carrier frequency or modulating the compressor carrier frequency and fan carrier frequency in a staggered manner can effectively reduce sharp high-frequency sounds.The results of the research can provide a reference for suppressing high-frequency noise in motors.关键词
高频噪声/载波频率/调制/压缩机/风机Key words
High-frequency noise/Carrier frequency/Modulation/Compressor/Fan分类
通用工业技术引用本文复制引用
杨俊涛,高旭,高雪燕,熊军..空调室外机高频噪声问题分析及优化[J].家电科技,2023,(z1):185-188,4.
