Advantages of applying thermal adhesive to new energy vehicles
With the widespread application of thermally conductive materials in the field of traditional electronic products, materials such as thermally conductive silicone grease, thermally conductive adhesives, silicone thermally conductive adhesive pads, and heat dissipating graphite films have become familiar to everyone. That is to say, due to various factors such as application process, reliability, cost, etc., the demand for thermal conductive materials is also different from that of general electronic products, and many traditional thermal conductive materials are not fully applicable.
The silicone thermal conductive adhesive is currently a widely used encapsulated thermal conductive material based on the silicone system in new energy electric vehicles. It is generally in the form of a two-component form, which can form an This kind of soft, elastic and adhesive silicone elastomer can reach the thermal conductivity of 2.3 ~ 3.2W / mK, and also has excellent electrical insulation properties. In the field of traditional automobiles, silicone thermal conductive adhesives have been widely used in electronic power modules, high-frequency transformers, connectors, sensors, etc., while providing thermal conductivity, they also have functions such as insulation and filling protection. Compared with the traditional automobile field, in the field of new energy vehicles, silicone thermal conductive adhesives are more used for various components such as power battery packs, power conversion and control systems, battery management systems, and vehicle charging systems.
Electronic control system application
In the normal working state, the electronic control system's own chips and circuit boards, because they need to participate in a large number of calculations and signal control, will also generate a certain amount of heat, this part of the heat can not be conducted to the outside of the shell through the air, this time requires The thermal conductive material is used to help transfer from the inside to the outside. Silicone thermal conductive adhesive is also a more suitable choice.
Power battery pack application
In the power battery pack, the battery core will generate a certain amount of heat during the charging and discharging of the chemical reaction. If the heat is not dissipated in time, the temperature inside the battery core will continue to rise. When the temperature exceeds a certain temperature, the diaphragm inside the battery core will Failure, causing a short circuit, which leads to the phenomenon of thermal runaway of the battery cell. At present, the battery pack of the new energy electric vehicle is designed with a heat dissipation system, whether it is an air cooling or water cooling system, between the battery cell and the cooling system, silicone can be used The thermally conductive adhesive helps to better conduct heat between the battery and the cooling system.
Advantages of silicone thermal conductive adhesive for new energy vehicles
Suitable for non-scale automatic production
Silicone thermal conductive adhesive can be used with automatic equipment for rapid sizing to meet the needs of automated production processes in the industrial field. The specially optimized formulation system can make the material easier to be transported in the dispenser and reduce the wear on the dispensing equipment, so it can allow customers to carry out stable and efficient production.
Silicone thermal conductive adhesive is excellent in many tests and practical applications, such as thermal stability, thermal shock resistance, electrical insulation and vibration aging. After these tests and the actual application process, no obvious changes have been found in the appearance, thermal conductivity, volume resistivity, breakdown strength, mechanical strength and other properties, showing excellent reliability.
Personalized performance customization
As the design complexity of electronic devices increases, compared with many traditional thermal conductive materials, silicone thermal paste can better fill the irregular gaps of components and overcome the tolerances of parts. Silicone thermal conductive glue can be designed with different thermal conductivity and different hardness according to the needs of different products, and can also be better for targeted product development.