壁挂式空调器热胀冷缩异响机理分析与控制

doi:10.19784/j.cnki.issn1672-0172.2020.01.006

Abstract

Abstract: Based on the analysis of the mechanism of abnormal noise caused by thermal expansion, cooling and contraction, two practical and effective modification schemes are obtained: (1) Optimizing the local structure of the base, middle frame and left and right sweeper blades to change the contact mode from surface-to-surface contact to line-to-surface contact, and reducing the contact area by 98% compared with an old shell; (2) Optimizing the bottom, the process of pressing the seat parts and exerting pressure by hand, the base will not be separated from the base foam before the base foam is damaged, and the qualified rate is 100%. Through the above two rectification schemes, the qualified rate of hot expansion and cold contraction products is 100% and the complaint after sale is effectively avoided.

Key words: Air conditioner, Thermal expansion and contraction, Noise

CLC Number:

TB535

ZHOU Weifeng, ZHANG Fan, XIONG Jun, XU Zhiliang, ZHOU Xiaohua, DONG Long. Analysis and research on thermal expansion and contraction noise in household hanging air conditioner[J]. Journal of Appliance Science & Technology, 2020, 0(1): 53-57.

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Analysis and research on thermal expansion and contraction noise in household hanging air conditioner

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