Temperature switch for use in battery operated electric power tool machine in vehicle, has heating element for heating switch element to increase temperature of switch element over threshold value if switch-off criterion is fulfilled

摘要

The switch (150) has a switch element (151) designed to limit a current flow between an energy source (100) e.g. current or voltage supply, and an electric consumer (170), if temperature of the switch element exceeds an assigned switching threshold value. A heating element (160) is provided for heating the switch element to increase the temperature of the switch element over the assigned switching threshold value if a predetermined switch-off criterion is fulfilled. The switch element includes a bimetal element, and the heating element includes a heating resistor and a glow filament.