Power supply for a consumer in a vehicle

摘要

The power supply unit (100) comprises a lower thermoelectric generator (102) and an upper thermo-electric generator (204). The lower thermoelectric generator is connected with a lower phase change element (104), and the upper thermoelectric generator is connected with an upper phase change element (201). The thermoelectric generators and the phase change elements are housed in a common housing. The lower phase change element has a different melting point than the upper phase change element. A heat insulation is provided between the phase change elements. An independent claim is included for an electrical system.