Patent ID: 8153939

Claim:
A Fluid-heating device comprising: a fluid circulation conduit, electric heating means disposed in order to heat the fluid travelling through the fluid conduit, a switch, which is electrically connected to the electric heating means, said switch being selectively movable between a power-supplying configuration for supplying electric power to said electric heating means and a power cut-off configuration for prohibiting electric power to be supplied to said heating means, and a thermally fusible part disposed in proximity to said electric heating means in order to be heated thereby during operation, said fusible part being designed to melt at least partially when at least one area of said electric heating means exceeds a critical temperature threshold, and in order to then cause the switch to shift from the power-supplying configuration thereof to the power cut-off position thereof, the thermally fusible part being a ring surrounding at least a portion of said fluid circulation conduit and at least one portion of said electric heating circuit, said thermally fusible part comprising an internal diameter greater than an external diameter of the fluid circulation conduit and bearing against a supporting area of said conduit and/or said electric heating means, in order to be heated thereon.