Abstract: Noise is one of the main performance indexes of refrigerator, which users pay more attention to. Therefore, it is important to carry out effective noise matching design of refrigerator, solve the problem of abnormal noise, and conduct research on test process and methods. Through combing the development process and the coupled operating conditions of refrigerator noise source, a set of test program was developed and integrated into the control module. The integrated noise test method can realize the research of compressor vibration noise with changing frequency, fan and compressor speed matching design, optimization and verification of key noise issues, etc. This can improve efficiency of product development, also provide design guidance for subsequent products, which is beneficial to reduce refrigerator noise.

Key words: Refrigerator noise, Matching design, Noise improvement, Test method, Control mode