What are the components of a thermal management system for new energy vehicles?

　　 New Energy Vehicle Thermal Management Unit Widely used in industry, it is commonly referred to as a dual‑mode temperature controller, a hot‑and‑cold temperature controller, or an integrated hot‑and‑cold unit. It is a standard temperature‑control device that enables rapid switching between heating and cooling. The integrated hot‑and‑cold unit features two sets of thermal‑medium circulation lines, with temperature regulation achieved through two independent temperature‑control systems. Users can set different target temperatures according to specific process requirements. In the context of new‑energy vehicles, the hot‑and‑cold temperature‑control module also serves as a temperature‑regulation system, managing both high and low temperatures for various materials. Integrated cooling and heating units are suitable for processes such as the production of glass‑fiber‑reinforced plastics, composite molding, aluminum and magnesium alloy die‑casting, as well as other manufacturing operations that require movable or stationary molds at varying temperatures.

　　New energy vehicle thermal management unit: The unit incorporates both electric heating elements and a compression‑type refrigeration system. This integrated heating and cooling temperature controller offers an exceptionally broad temperature control range. When using heat transfer oil as the heat‑transfer medium, the dual‑mode temperature controller can achieve a maximum temperature of 350°C and a minimum of −120°C. Without changing the heat‑transfer fluid, it enables wide‑range temperature adjustments. These heating and cooling temperature control units are widely employed in chemical reaction and materials‑testing applications, meeting the diverse requirements of various manufacturing processes.

　　The thermal management unit for new-energy vehicles comprises heat-transfer oil, a circulation pump, heating elements, a cooling heat exchanger, a refrigeration system, a temperature-control system, piping, and a frame. The heat-transfer oil circulates between the unit’s thermal‑medium pipelines and the heat exchangers of the temperature‑control equipment, such as mold flow channels, heated runner systems in rollers, reactor jackets, or coils. The circulation pump, heat-transfer‑oil piping, heating assembly, and cooling assembly together form the basic thermal‑medium circuit.

　　Typically, the heat-transfer oil in a temperature control unit is continuously pumped by an oil pump, forming a fluid with a certain kinetic energy. The oil flows through the heater and the cooling device before reaching the temperature-control equipment. After exchanging heat with the temperature-control equipment, it returns to the unit for the next cycle.

　　 New Energy Vehicle Thermal Management Unit After prolonged operation, users are required to perform regular cleaning and maintenance on the equipment. How should high- and low-temperature circulating temperature control units be cleaned and maintained?

　　1. Clean the equipment surface: When the surface is dirty, use a soft cloth dampened with a neutral detergent or soap to clean it. Do not use oil, acidic solvents, abrasive powders, steel brushes, or sandpaper, as these may damage the powder-coated finish.

　　2. Pre‑use inspection: During or after prolonged use, check whether the equipment’s heat exchanger is blocked by dust or dirt. Clean the surface using dry compressed air, a vacuum cleaner, or a soft brush.

　　3. The equipment’s ability to maintain high operational efficiency and a long service life is closely linked to its quality, operating practices, and maintenance.

　　4. New Energy Vehicle Thermal Management Unit : During each cleaning, this procedure must be performed with the power disconnected. Additionally, ensure that the equipment has been shut down for at least one hour before proceeding, and thoroughly clean all components of the high‑low temperature cycling controller.

　　5. Before cleaning the oil tank, drain any excess engine oil. During cleaning, it is even necessary to clean the bottom of the tank. To ensure adequate cooling, the cooling coils should also be cleaned regularly to prevent damage. In addition to the cylinder and performance, do not overlook cleaning the air filter during the process, as neglecting it can shorten the filter’s service life. Therefore, remove the filter for cleaning. If the buildup is particularly heavy, use warm water and a neutral detergent at no more than 40°C to achieve better results.