Fluid-heating device, has ring shape thermally-fusible part that partially fuses when area of electric heating units exceeds critical temperature threshold and moves switch from power supply configuration to power cut-off configuration

摘要

Device has a switch (6) selectively moved between a configuration, in which electric heating units (4) are powered and a configuration, in which electric power supplied to the units is cut off. A ring shape thermally-fusible part (7) partially fuses when an area (8) of the units exceeds a critical temperature threshold and moves the switch (6) from the power supply configuration to the power cut-off configuration. The part is made up of an electrically non-conducting plastic material. The switch has a connection terminal formed on an outer surface (12) of a complementary element (3).