Electrical device, especially electrical machine, has safety device with several temperature sensors, at least one on heat-generating device and one on carrier, evaluation device that combines sensor values and compares with specified value

摘要

The device has a housing containing a heat generating device with a thermally conducting connection to a carrier and a safety device that interrupts an electrical supply in the event of an excessive temperature. The safety device has several temperature sensors (14-16), of which at least one is arranged on the heat-generating device (9,10) and one on the carrier (8), and an evaluation device that combines the sensor values and compares with a specified value.