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冰箱压缩机内排气管优化设计

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冰箱压缩机在运行过程中其机芯会产生较大振动,而内排气管是机芯振动向外传递的主要路径之一.压缩机匹配某款箱体时出现低频噪声问题,经实验分析确认为内排气管一阶共振引起压缩机振动增大从而导致噪声异常.针对压缩机低频噪声问题,通过仿真对内排气管结构进行了优化,经实验验证,新内排气管在保证一阶模态不变的情况下使压缩机振动及噪声分别降低0.09 m/s2、0.56 dB,同时使箱体基频峰值声压级下降10.2 dB、声功率级下降1.5 dB.
Optimization design of exhaust pipe inside refrigerator compressor
The refrigerator compressor generates significant vibrations during operation,and the internal exhaust pipe is one of the main paths through which the vibrations are transmitted outward.The compressor matched with a certain box has a low-frequency noise problem.After experimental analysis,it was confirmed that the first-order resonance of the internal exhaust pipe caused an increase in compressor vibration,resulting in abnormal noise.In response to the low-frequency noise problem of the compressor,the internal exhaust pipe structure was optimized through simulation.Experimental verification showed that the new internal exhaust pipe reduced the vibration and noise of the compressor by 0.09 m/s2 and 0.56dB,respectively,while maintaining the first-order mode unchanged.At the same time,it reduced the peak sound pressure level of the box's fundamental frequency by 10.2dB and the sound power level by 1.5dB.

CompressorInternal exhaust pipeModal analysisVibration and noise

孙晓东、赵松柏、周凤磊、张亚飞、史海娟、高儒兵

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青岛万宝压缩机有限公司 山东 青岛 266510

压缩机 内排气管 模态分析 振动噪声

2024

家电科技
中国家用电器研究院

家电科技

影响因子:0.086
ISSN:1672-0172
年,卷(期):2024.(z1)