serving tray - heating insert, with a serving tray serving tray - heating insert and method for temperature control of a serving tray

摘要

In the case of the heating insert serving tray -a) the heating insert (7) from a fabric with thereon to a heating conductor structure is fixed to the heating conductors,b) the heat conductor made of several to form a strand (2) of intertwined filaments (1, 1 ’) are,c) the stranded wire (2) with a thermally conductive plastic - sheath (5) is provided andd) the filaments (1, 1 ’) of the two ends of the stranded wire (2) with current contacts on the outer edge of a serving tray can be connected, characterized in thate) at least one filament (3) of the stranded wire (2) with an electrically insulating and thermally conductive coating (4) is provided andf) the at least one electrically insulated filament (3) of the stranded wire (2) is suitable, when current is applied to the electrically uninsulated filaments (1, 1 ‘) of the stranded wire (2) over its entire length to be, mushrooms, and thus its ohmic resistance in such a way that the change in resistance can be used as a temperature signal and expensiveg) the at least one electrically insulated filaments (3) and the not insulated filaments (1, 1 ’) of the stranded wire (2) at the ends of the stranded wire (2) to separate groups, and in each case with different contacts can be connected on the outer edge of the serving tray.