The invention discloses a compressor sound insulation cover, a compressor and an outdoor air conditioner. The compressor sound insulation cover comprises a micro perforated plate and a sound insulation plate, and a porous sound absorption layer is arranged between the micro perforated plate and the sound insulation plate; the thickness of the porous sound absorption layer is 5 60mm, and the thickness of the sound insulation plate is 1 2mm. The compressor sound insulation cover of the invention has excellent sound insulation and sound absorption effect, can absorb the broadband noise radiated by the compressor, reduce the overall OA value, and can absorb the noise under the specific fundamental frequency and its frequency doubling, and reduce the peak value of the compressor frequency doubling noise. The sound waves from the compressor in each frequency band reach the micro-perforated plate first. The sound wave transmits through the micro-perforated plate, enters the porous sound absorption layer, and reflects back and forth between the micro-perforated plate and the sound insulation plate. The sound absorption layer is the holes that penetrate each other internally. It is subjected to the friction and viscous resistance of the air molecules, through the internal friction of the air molecules and makes the fine fibers work. Mechanical vibration, so that the sound energy can be changed to heat energy, so as to achieve the purpose of sound absorption and noise reduction.
【技术实现步骤摘要】
一种压缩机隔音罩、压缩机及空调室外机
本专利技术属于空调
，尤其涉及一种压缩机隔音罩、压缩机及空调室外机。
技术介绍
随着生活品质的提升，人们对空调器的使用要求不再是简单的冷热效果要求，噪声问题已发展成为人们对空调器的第二大关注点。空调器的主要噪音来源为压缩机部分，尤其是在夏季由于楼层间距有限以及相邻楼层的邻居开窗通风的影响，使得室外机的噪声扰民，是消费者投诉的重点。现有产品对此类噪声问题的解决办法，普遍方案为在室外机增加隔音棉，隔音棉一般为毛毡材料，具体为：在压缩机缸体包裹一圈，在管路外围再包裹一圈，在压缩机顶部再装上块顶部毛毡，从而吸收压缩机向外辐射的各频率段声波能量，以达到降低噪音的效果。但由于与压缩机连接的管路以及储液罐等的影响，使得压缩机的有些部位不能被毛毡包覆，使得降噪效果不好；并且目前这样的毛毡包覆操作复杂，使得生产效率较低。此外，毛毡为开孔型材料，其吸声机理是声波深入材料的孔隙，且孔隙为内部互相贯通的开口孔，受到空气分子摩擦和粘滞阻力，以及使细小纤维作机械振动，从而使声能转变为热能，达到吸声降噪目的，这样毛毡主要对1000赫兹以上的高频段噪声...
【技术保护点】
1.一种压缩机隔音罩，其特征在于，包括微穿孔板和隔音板，所述微穿孔板和所述隔音板之间设置有多孔吸音层；所述微穿孔板的厚度为1‑10mm，所述多孔吸音层的厚度为5‑60mm，所述隔音板的厚度为1‑2mm；所述微穿孔板上等间隔设有多个微孔，所述微孔的孔径为0.5‑5mm，所述微孔间距为3‑50mm。
【技术特征摘要】
1.一种压缩机隔音罩，其特征在于，包括微穿孔板和隔音板，所述微穿孔板和所述隔音板之间设置有多孔吸音层；所述微穿孔板的厚度为1-10mm，所述多孔吸音层的厚度为5-60mm，所述隔音板的厚度为1-2mm；所述微穿孔板上等间隔设有多个微孔，所述微孔的孔径为0.5-5mm，所述微孔间距为3-50mm。2.根据权利要求1所述的压缩机隔音罩，其特征在于，所述微穿孔板的截面为U型，所述微穿孔板与所述隔音板相扣合围成空腔，所述多孔吸音层固定在所述空腔中。3.根据权利要求2所述的压缩机隔音罩，其特征在于，所述多孔吸音层粘贴固定在所述空腔中或者压合固定在所...
【专利技术属性】
技术研发人员：杜明龙，王庆杰，蒋茂灿，闫丽俊，
申请(专利权)人：青岛海信日立空调系统有限公司，
类型：发明
国别省市：山东,37
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