The working principle and structure of different types of small car refrigerators

(1) The structure and working principle of the energy storage type vehicle-mounted small refrigerator

The energy storage vehicle-mounted small refrigerator does not have the cooling capacity. Its shell is made of thermal insulation material. The energy storage box is used for cooling and insulation. The content of the energy storage box is polymer gel and anti-freezing factor, which can not only store cold but also It can store heat, is non-toxic, non-corrosive, not afraid of collision, and can be recycled.

When refrigeration is required, put the energy storage box in the refrigerator or freezer first, and then put it in the incubator after freezing for 10 hours. The temperature of the box can be stabilized below 15°C for up to 20 hours.

When heat storage is needed, put the energy storage box in the microwave oven and heat it for 2 minutes before putting it into the incubator. The temperature of the box can be stabilized above 40°C for about 4 hours.

(2) The structure and working principle of the compressor-type vehicle-mounted small DC Car Refrigerator

The structure and working principle of the compressor-type car-mounted refrigerator are basically the same as that of the household refrigerator, except that the car-mounted refrigerator uses the car's 12V DC power supply. Compressor refrigeration refrigerators use DC compressors, using the principle of cold and heat exchange, when the refrigerant in the evaporating plate changes from liquid to gas, heat will be absorbed. The compressor compresses and collects the refrigerant and transfers it to the condenser, and discharges the absorbed heat to the atmosphere. The refrigerant returns to a liquid state and returns to the condenser plate to start a new cycle of refrigeration.