Heating device for a motor vehicle operating fluid tank with a ptc plastic element

Abstract

A heating device (10) for a motor vehicle operating fluid tank, in particular for storing aqueous urea solution, wherein the heating device (10) has two electrical conductors (12, 14), an element (16) made from PTC plastic, which is electrically arranged between the two electrical conductors (12, 14) and is in electrical contact with the two electrical conductors (12, 14), and a shell (18, 20), which protects the electrical conductors and the PTC plastic element (16) from the outside environment (22) at least in some sections, which is characterized in that at least one electrical conductor (12, 14) is made at least in some sections from a metal foil (12, 14), in particular aluminum foil, and that the shell (18, 20) is an insulating surface, in particular a plastic film (18, 20) that is preferably bonded to the metal foil.

Dependencies are inferred from the claim text.