Development status of automobile air-conditioning compressor industry

The automobile air-conditioning compressor is the heart of the automobile air-conditioning refrigeration system, and it is one of the decisive factors affecting the performance of the air-conditioning. It plays the role of compressing and transporting refrigerant vapor. According to different working methods, compressors can generally be divided into reciprocating and rotary types. Common reciprocating compressors include crankshaft connecting rod type and axial piston type, and common rotary compressors include rotary vane type and scroll type.

At present, domestic vehicle compressors are dominated by axial piston compressors, accounting for 78%, of which two-way swash plate compressors account for 49%; one-way rocking plate compressors account for 29%. Followed by the rotary vane compressor accounted for 10%.

The commercial vehicle market continues to pick up, and the demand for reciprocating compressors for automotive air conditioners is rising.

Among the reciprocating compressor products, crankshaft-connecting rod compressors have low requirements for processing materials and processing technology, low cost, strong adaptability, can adapt to a wide pressure range and cooling capacity requirements, and have strong maintainability. However, the crankshaft connecting rod compressor cannot achieve a higher speed, the machine is large and heavy, it is not easy to achieve light weight, and there is greater vibration during operation. Therefore, there are very few small displacement compressors using this structure. Crankshaft connecting rod compressors are currently mostly used in large displacement air conditioning systems for passenger cars and trucks, such as Dongfeng Motor, FAW Jiefang, JAC, Zhengzhou Yutong, The air-conditioning compressors for large passenger cars and freight vehicles produced by manufacturers such as Xiamen Jinlong, Suzhou Jinlong, Liuzhou Automobile Factory, Beiqi Foton and other manufacturers use crankshaft connecting rod compressors.

The miniaturization and weight reduction of axial piston compressors are mainly used in pickup trucks and light trucks. For example: Shanghai Guangyu Automobile Air Conditioning Compressor Co., Ltd.'s 5H series one-way rocking plate compressors are used in Foton commercial vehicles, light trucks, and pickup trucks. ; JAC commercial vehicles, light trucks and other models.

In general, reciprocating air-conditioning compressors are mainly suitable for commercial vehicles such as various trucks and large passenger cars. The development of the commercial vehicle market directly affects the demand for reciprocating air-conditioning compressors, thanks to the start of a large number of infrastructure projects and national and local environmental protection policies. Influencing factors such as tightening and new energy policies, the commercial vehicle market in 2018 continued the growth trend of 2017. In the first half of 2018, the cumulative sales of commercial vehicles were 1.840 million, a year-on-year increase of 7.8%.