Electronic control units (ECU)
Vehicles of today's generation have more and more electronic functions. As a result, the number of electronic components inside and outside the vehicles has also increased immensely. These electronic components must be regulated by a large number of control units and fulfill different requirements. Different dispensing applications are used for this purpose.
- Protection against environmental influences such as moisture, dirt, salt, temperature fluctuations
- Stability and vibration safety during driving
- Protection against overheating of the electronic components
Electronic control units (ECUs) are very compact and powerful. A great deal of heat is generated in the housings. To prevent overheating, a heat-conducting paste is metered between the circuit board and the aluminum heat sink to dissipate the heat. To protect the internal electronics, a liquid seal is applied between the ECU housing and lid. To ensure that the liquid seal adheres better to the housing and lid, the lid and housing are pretreated with plasma beforehand.
The printed circuit board is fixed in the housing with a heat staking joint. The cover can also be attached to the housing in this way.