A car refrigerator is a freezer that can be carried on a car. Compressor-mounted refrigerators are similar to domestic refrigerators. They are cooled by compressor power. The refrigeration is fast and powerful. The refrigeration can reach -18 ° C. It can make ice and keep fresh. The volume can be large or small. The mainstream direction of car refrigerator development.
Compressor car refrigerator can be used for car or home through power converter, which is an extension and supplement of home refrigerator. The characteristic is that it is portable and movable, and it is also suitable for self-driving cars.
At present, the common car refrigerators on the market, according to different classifications, mainly work in the following three types: Compressor type: through mechanical compression (compressor), convective heat exchange (condenser), and throttling and reducing pressure (capillary) to obtain a liquid refrigerant, the liquid refrigerant evaporates into a gaseous state (evaporator) in the refrigerator box, and passes the phase change Take away the heat in the box to achieve the cooling effect; finally, the gaseous refrigerant returns to the compressor; repeat the above process, the refrigeration system continuously moves the heat inside the box to the outside of the box to achieve the cooling effect.
Electronic semiconductor type: The semiconductor uses the Peltier effect to cool, that is, when semiconductor components are energized, the heat will be transferred from one end to the other. The cold end is affixed to the inner liner of the refrigerator through the cooling block to achieve the cooling effect; the hot end is radiated to the air outside the cabinet through a radiator and a cooling fan.
Absorption type: The refrigeration system uses the characteristic of different condensation points of liquid ammonia and water. It uses a gas or an electric heating rod to heat the ammonia-water mixture, so that the ammonia inside evaporates to form pure ammonia vapor, and then enters the condenser to convect with the air. Heat exchange condenses into liquid ammonia; liquid ammonia is evaporated at low pressure in the evaporator (helium in the system makes the ammonia partial pressure very low), and the heat in the box is taken away by the liquid ammonia phase change; at this time, due to helium The ammonia vapor returns to the absorber to form a high-concentration ammonia-water mixture and returns to the liquid storage tank to circulate.
Compressor-type main components: compressor, condenser, drying filter, capillary, evaporator, liquid storage tank, temperature controller, tail tube;
Electronic semiconductor-type main components: semiconductor electronic chips, radiators, cooling blocks, heat exchange fans;
Absorption main components: liquid storage tank, generator, condenser, evaporator, absorber;
1. It can be applied to power supply of various voltages, whether it is 12VDC or 24VDC, the built-in power supply unit of the compressor car refrigerator can automatically identify different voltages and adjust accordingly.
2. The medium-sized compressor vehicle refrigerator has the characteristics of convenient transportation and excellent internal and external dimensions. 3, compressor car refrigerator is most suitable for off-road vehicles, RVs, trucks, buses and yachts and boats. They can also be secured securely in the car if necessary. 4. The household enjoys supreme enjoyment from it. 5. Mechanical operation, strong cooling capacity and fast speed. 6, energy saving and low power consumption, saving nearly 50% of power consumption than semiconductors. 7, long life, generally can reach more than 10 years.