In the automotive thermal management system, the compressor is a core component that drives the refrigeration cycle, enables efficient heat exchange, creates a comfortable in-vehicle environment, and ensures the stable operation of the battery and key components.

During operation, the compressor sucks in low-temperature and low-pressure gaseous refrigerant, mechanically compresses it into a high-temperature and high-pressure state, and then pumps it into the high-pressure side. The refrigerant circulates, absorbing heat in the evaporator for cooling and releasing heat in the condenser for heating, precisely controlling the in-vehicle temperature, and dissipating heat or heating the battery, motor, etc., ensuring that the components operate within an appropriate temperature range and avoiding impacts on their performance and lifespan.

The mainstream types include electric cooling compressors and scroll compressors. The electric cooling compressor adopts high-speed centrifugal technology, features a compact and oil-free structure, and has a high operating speed. It enables efficient thermal management during ultra-fast charging and high-speed driving, improves the efficiency of the energy management system, and extends the driving range. The scroll compressor utilizes the dual-flexible scroll compression technology, covers multiple voltage platforms and displacement ranges, is compatible with various refrigerants, and has the advantages of high rotational speed, high energy efficiency, low noise, and low vibration. It has good stability and reliability, and different voltage platforms are suitable for scenarios such as parking air conditioners, RV air conditioners, and fast charging platforms.

Compressors of different types, with their unique performance, meet the diverse needs of automotive thermal management systems under different vehicle models and scenarios, and are crucial for the safe, efficient, and comfortable operation of vehicles.

In the automotive field, PTC heating technology is crucial. Its core PTC thermistor, made of special materials, features a significant increase in resistance with rising temperature.

When working, at low temperatures, it has low resistance and high current, quickly heating seats, in - vehicle air or batteries. As temperature climbs, resistance increases, reducing heat generation. At the Curie temperature, heat generation nearly stops, achieving precise self - temperature limitation.

This technology boasts prominent advantages. It has built - in temperature self - limitation, eliminating complex overheat protection and fire risks, with only a 20 - 30°C temperature rise in abnormal situations. It can adjust power based on the environment and heat dissipation, achieving 99% thermal efficiency. It's adaptable, operating within 12V - 380V, with customizable power and shape. It heats up fast, has a small heat capacity, operates stably quickly, and has a lifespan of 5 - 10 years or more.

In cars, PTC heating warms seats in winter, heats air in new - energy vehicle air conditioners without engine waste heat, and preheats batteries to boost low - temperature activity, enhancing driving range and power, thus improving vehicle performance and driving experience.

Automotive heat pumps transform thermal management, operating on the reverse Carnot cycle. Core components like compressors and a four - way valve enable heat transfer for cooling and heating.

They outperform traditional setups. With a COP of 2 - 4, they enhance EV range in winter. Their integrated design serves cabin and component thermal needs, saving space. Smart controls adapt to conditions, maintaining comfort and part performance. Plus, they're greener, using less high - energy heating.

In new energy cars, heat pumps heat/cool the cabin and manage battery temps. High - end fuel vehicles are also adopting them. They're steering automotive thermal management towards a more efficient, sustainable future.