Abstract: Compressor reliability is one of the prerequisites for refrigerator manufacturers to perform quality assurance to users. To evaluate the compressor reliability, beside overload test and lock rotor test, also includes accelerating life and starting durability test. The test items mainly refer to national standards or the standards of their respective enterprises. However, these standards do not describe the relationship between warranty period and reliability items, cycle and sample size. Based on weibull distribution and arrhenius acceleration model, the failure situation of similar products was counted. Combined with the life expectancy, target failure rate and confidence interval, the sampling scheme and the test condition of accelerated life were determined, so as to provide a demonstration method for compressor life design.

Key words: Compressor reliability, Weibull distribution, Accelerate factor, Arrhenius acceleration model