Srcoll
The number of electronic assistance systems in vehicles is increasing rapidly, and so are dispensing applications. Cameras, radar and LiDAR systems and sensors are bonded or encapsulated to protect them from external influences.
Advanced Driver Assistance Systems (ADAS) are electronic assistance systems in cars, buses and trucks that support the driver in certain driving situations and prevent human error. On the one hand, the aim is to increase safety in road traffic, but also to improve driving comfort. The systems take over monitoring functions and intervene partially or completely in the driving process. Various driving assistance systems are used.
Camera systems must be protected from external influences to prevent malfunctions. Typical dispensing applications for this are the application of a thermally conductive material for heat dissipation between the aluminum housing and the electronics or a conductive adhesive on a printed circuit board to shield the electronics against occurring electrical or magnetic fields (EMI shielding) and to ensure interference-free transmission of the camera signals. To prevent moisture ingress, a liquid seal is often also applied around the camera housing.
Electronic components of driver assistance systems must be protected from external influences. To this end, they are sealed, potted or bonded.
Radar systems are used to measure the distance to other vehicles, pedestrians and other obstacles as well as their speeds. These systems are used to prevent accidents via driver warnings or actual intervention. These include lane change assistance, distance control and collision warning systems.
LiDAR systems (Light Imaging, Detection and Ranging) have the same tasks as radar systems. However, due to their laser technology in combination with camera systems as well as radar sensors, they offer faster detection of obstacles in road traffic and thus increase road safety even further. Lidar systems are the technology of the future for autonomous driving.
Ultrasonic sensors now have a wide range of functions in vehicles. They measure distances to obstacles, monitor the vehicle's surroundings and are mainly used to support partially as well as fully automatic parking. In the event of a sudden, very close object, these sensors can trigger the emergency braking function, for example by pedestrians or playing children.
The ultrasonic sensors are installed in the front and rear bumpers and are therefore exposed to all environmental influences. To prevent moisture or other media from entering the sensor and destroying the electronics, they are completely encapsulated.
Vehicles on the road communicate with each other to warn drivers of dangerous, critical situations at an early stage and to inform them about the current traffic and weather situation. In addition, vehicles can communicate with other participants such as traffic lights and road signs (V2I=vehicle to infrastructure), pedestrians or cyclists (V2P=vehicle to pedestrian), the mobile network (V2N=vehicle to network) or with their own homes (V2H=vehicle to home). To ensure this type of communication, different components such as antennas, WLAN modules, control units as well as infotainment systems are installed in the vehicles. For these components, different metering applications are necessary to ensure optimal function.
With our dispensing systems, the antennas are filled with a potting material to protect them against environmental influences. In the WLAN modules and control units, thermally conductive materials are applied between the electronics and the aluminum heat sink to prevent overheating. The housings of the WLAN modules and control units are protected against moisture by applying a liquid seal to the housing.
Infotainment systems in vehicles are another component of driver assistance systems. They help to support and relieve the driver by showing him all traffic and danger situations on the display. Our dispensing systems are used to glue the displays into the housing. To ensure that the adhesive adheres better to the housing, it is pretreated with a plasma system before application.
There is a small air gap between the LCD display and the touch surface (protective screen). This is filled with a transparent potting material with our dispensing equipment and thus ensures better visibility in incident light/sunlight, prevents dust from entering, avoids fogging of the display due to moisture and ensures precise operability.
The application of a thermally conductive material between the aluminum heat sink and the electronics prevents overheating and thus avoids malfunctions.
Application of thermally conductive materials, for heat dissipation between the aluminum heat sink and the electronics to prevent overheating and malfunction.
Application of conductive adhesive for shielding the electronics against electrical/magnetic fields (EMI shielding), for interference-free transmission of the signals.
Application of a liquid sealant to the plastic housing to prevent the ingress of moisture and thus damage to the internal electronics
Filling a sensor with a potting material to protect it from environmental influences such as heat, dust or moisture.
