Food refrigerated showcase serve as the end equipment in the food cold chain and play an important role in ensuring food quality and safety. The types and types of food refrigerated showcase are various. Among them, the open-type food refrigerated showcase can not only provide foods with suitable refrigerating temperatures, but also can display foods, beautify the shopping environment and stimulate consumption. After years of development, they have become supermarkets. The essential equipment. According to incomplete statistics, the energy consumption of supermarket food refrigerated showcase accounts for about 50% of the total energy consumption of supermarkets. Therefore, the performance of food refrigerated showcase is good or bad, and in addition to having an important impact on food quality, it also saves energy in supermarkets. It also has an important influence.