【摘要】 本文在分析异丁烷制冷剂特性的基础之上论述了无霜电冰箱采用异丁烷作制冷剂的技术难点及依据标准，阐明了无霜冰箱采用异丁烷作制冷剂的电器和制冷改造要点，并对异丁烷无霜冰箱的整机安全性和整机性能作出评价更多还原

【Abstract】 Based on the characteristic analysis of isobutane refrigerant,this paper explains the technical difficulties and the based standards for isobutane refrigerant used in no frost refrigerators.It expounds the key retrofitting points of the electrical units and the refrigeration system of no frost refrigerators with isobutane as the refrigerant.Moreover,it evaluates the overall safety and the overall performance of isobutane on frost refrigerators.更多还原