Upright Showcase unique ice water dispenser features. It is installed outside the refrigerator, and it can be used to obtain fresh and cold drinking water without opening the freezer door. It is not conducive to cold air circulation, and it is easy to freeze in the store freezer, which will increase the compressor running time and increase the power consumption. If the food is too low, the heat capacity will be smaller when the food in the convenience store is too small. The convenience store will open the door to speed up the release of the air conditioner. The compressor starts frequently and increases the electricity consumption of the Household Appliance.