模拟嵌入式冰箱前点噪声的实验研究

Experimental research on the front noise of imitated inbuilt refrigerator

嵌入式冰箱区别于传统冰箱,对噪声的要求,只限于冰箱前点噪声。本文首先从理论上,分析了嵌入式冰箱前点噪声声场的分布,随后通过现有某型传统式冰箱,运用制作的嵌入式工装橱柜,模拟嵌入式冰箱,在半消声室内测量其前点噪声,并与该冰箱在非工装状态下的前点噪声进行对比,最后得出:嵌入式冰箱前点噪声较传统冰箱,声压值升高,但声压历程体感波动值下降,且频谱分布也较传统冰箱有一定的变化。

The inbuilt refrigerator is different from traditional one, whose requirement to noise is only in front of the refrigerator noise. This paper, from the theory, gives analysis of the distribution of inbuilt refrigerator noise field. And then, through a certain type of traditional refrigerator, use embedded industry production installed cabinet, simulate inbuilt refrigerator, measure the front noise of the refrigerator in a semi-anechoic room to compare the front noise of traditional refrigerator without the cabinet. Finally, compared to the traditional refrigerator, the front noise of the inbuilt refrigerator, pressure increases, but the pressure range values decrease, and the spectral distribution also has some changes.