Automotive Filter is one of the key components in automotive electronic systems, especially in modern cars, it undertakes important tasks such as suppressing electromagnetic interference (EMI), stabilizing power supply, and ensuring signal quality. With the rapid development of electric vehicles, autonomous driving technology, and intelligent connected vehicles, the requirements for in vehicle filters are also increasing. In order to cope with the complex electrical environment of automobiles, the design and packaging technology of filters, especially encapsulation technology, have become the key to improving their performance and durability.
Why do car filters need to be sealed?
As a precision electronic component, filters mainly achieve electromagnetic interference suppression through components such as inductors and capacitors. In car applications, filters often need to work stably in harsh environments such as high temperature, high humidity, vibration, and electrical noise. Therefore, the encapsulation process is crucial for filters, and the specific reasons include the following:
▶ Enhance the ability to resist electromagnetic interference (EMI)
▶ Improve high pressure resistance performance
▶ Flame retardant protection
▶ Improve durability and reliability
▶ Enhance resistance to vibration and impact
Practical application cases
When designing car filters for the latest smart cars, customers are faced with the need for the filters to work stably in complex electromagnetic environments, and to have high voltage resistance, flame retardancy, and good durability. Through collaboration with our technical team, the client has decided to use PUR 1680 A/B for the sealing process of the filter.
Car mounted filter encapsulation
After testing, the sealed filter has demonstrated excellent performance in automotive applications, successfully passing multiple harsh environmental tests such as high temperature, high humidity, high pressure, and vibration, ensuring the stable operation and long-term durability of the electronic system. In addition, customers have also provided feedback that this solution greatly improves production efficiency and product consistency, reducing after-sales maintenance costs.
Product Description and Features
PUR 1680 A/B is a two-component solvent-free room temperature or heat cured resin elastomer composite used for two-component sealing and filling. The raw materials are free of heavy metals, environmentally friendly, and have a wide range of process operability. The finished product has high physical properties and good adhesion to the substrate. It can be cured at room temperature or by heating, and can be deeply cured. The two-component mixture has good fluidity and excellent flexibility after curing. It is used for casting and sealing of communication equipment, transformers, control power supplies, ignition controllers, electronic sensors, etc.
▶ Low viscosity, strong operability
▶ Excellent low-temperature characteristics and outstanding weather resistance
▶ Excellent electrical insulation and stability stability
▶ Good waterproof and moisture-proof properties, with extremely low water absorption rate
▶ Has good adhesion to most metals and plastics
The encapsulation treatment of car filters can not only improve their electromagnetic interference suppression ability, but also effectively increase their high voltage resistance, flame retardancy, and vibration resistance. By selecting PUR 1680 A/B, a high-performance potting material, customers can significantly improve the performance of in car filters, ensuring their stable and reliable operation in harsh automotive electronic environments. This not only meets the high standard requirements of the industry for in car electronic systems, but also greatly improves the safety and durability of the product.
Tags: Car Filter · Car Filter Encapsulation
