High-voltage batteries achieve optimum energy efficiency at precisely defined operating temperatures. Reliable monitoring and control of the battery temperature prevent the battery from overheating, which improves the battery life time and increases safety. To do this, the battery temperature must be measured at multiple points to prevent local overheating.
TDK has developed temperature sensors to ensure best thermal contact to the battery surface. With support of ring tongue, made out of different material compatible to the battery surface, an easy attachment is possible. The types of the spring load series are pushed to the battery surface with external spiral spring, flat spring or plastic hook. This smart mounting solution compensate the interface tolerance and ensures excellent thermal contact over lifetime. Furthermore charging time can be reduced by keeping the battery temperature within operating temperatures, which can be achieved by additional heating during cold environmental conditions.
- Ring tongue, spring load and temperature sensor design
- HV strength and humidity resistance
- Smart mounting concept for temperature off set reduction
The PTC SMD limit temperature sensors have been developed for very small dimensions as SMD size 0402, 0603 and 0805. It is a reliable and space-saving solution, which can be used due to reflow soldering for automated production lines.
TDK has developed PTC heaters for air and liquid PTC heater modules for battery heating. It heats up fast the battery and has no risk of burning due to its self-regulating characteristics. Furthermore, the ceramic based PTC heaters do not change their product characteristics over lifetime.
Temperature Sensors SMD NTC Sensors SMD PTC SensorsPTC Heaters