At present, the common car fridge refrigerator on the market, according to different classifications, mainly has the following two working principles:
The principle of refrigerator refrigeration
Compressor type: Liquid refrigerant is obtained through mechanical compression (compressor), convection heat exchange (condenser), and throttling and pressure reduction (capillary tube). The liquid refrigerant evaporates into a gaseous state (evaporator) in the refrigerator box, and passes through a phase change. Take away the heat in the box, so as to achieve the cooling effect; finally the gaseous refrigerant returns to the compressor; repeat the above process, the refrigeration system will continuously move the heat in the box to the outside of the box with a source of energy, thereby achieving the cooling effect.
Electronic semiconductor type: use the Peltier effect of semiconductors for cooling, that is, when semiconductor components are energized, heat will be transferred from one end to the other. The cold end is affixed to the inner liner of the refrigerator through the cold conductive block to achieve the cooling effect; the hot end is passed through the radiator and cooperates with the cooling fan to dissipate heat to the air outside the cabinet.
The main components of the compressor type: compressor, condenser, filter drier, capillary tube, evaporator, liquid storage tank, thermostat, tail tube;
The main components of electronic semiconductor type: electronic semiconductor chip, radiator, conduction block, heat exchange fan;
