In recent years, although the new energy in the field of transportation is in full swing, the refrigerant types used in the current new energy vehicles still follow the traditional fuel vehicle technology route, that is, lag in the HFC stage. The bottleneck problems of new energy vehicles, such as potential safety hazards, range anxiety and the greenhouse effect of thermal management working medium, also put forward more advanced and precise requirements for the vehicle thermal management industry from two aspects of "energy saving" and "environmental protection".
Application status of refrigerant
Since the advent of steam compression refrigeration system, the common refrigerant type has gone through four changes.
The first generation of refrigerant represented by ether and ethanol only meets the demand of refrigeration function, and is soon replaced by the first generation of refrigerant such as R12, which is introduced into the field of vehicle application. Compared with the first generation of refrigerants, which greatly damaged the ozone layer, the second generation of refrigerants containing hydrogen with less damage to the ozone layer appeared. Later, the Montreal Protocol limited the use of CFCS and marked the introduction of the third generation of chlorine-free refrigerants (HFC). The third generation of products are widely used at home and abroad. Although they do not damage the ozone layer, they have a strong warming effect on the climate and are still in the early phase of elimination.
