▎ 摘　　要

NOVELTY - Anti-overheating electric floor heating module comprises an installation bottom case and an electric heating film body (7). The electrothermal film body is fixedly installed in the installation bottom shell, and the lower side of the electrothermal film body is provided with an insulation layer, and an anti-overheating layer is provided between the insulation layer and the installation shell. The anti-overheating layer comprises 25 %mass acrylic resin, 35 %mass graphite powder, 10 %mass carbon black, 5 %mass glass powder, 4 %mass fumed silica and other additives. The thickness of the anti-overheating layer is 3-5 mm, and the thermal conductivity is greater than 1.5 W/(M.K). The insulation layer comprises 25 %mass acrylic resin, 30 %mass hollow glass beads, 5 %mass calcined kaolin, 5 %mass bentonite, 5 %mass barite powder, 4 %mass titanium dioxide, 4 %mass fumed silica and other additives. USE - Anti-overheating electric floor heating module is used in a floor heating. ADVANTAGE - The module cannot dissipate heat when it is covered upper side, and the heat can be dissipated from the lower side in time to avoid the danger of overheating, and the thermal conductivity of the insulation layer and the overheating prevention layer can be adjusted through a reasonable formula, keeps the thermal conductivity of the insulation layer in a relatively balanced state, has excellent insulation effect during normal operation, transfers heat downwards at high temperatures to dissipate heat in time, realizs modular installation through a special installation bottom shell, which is convenient for construction. DETAILED DESCRIPTION - Anti-overheating electric floor heating module comprises an installation bottom case and an electric heating film body(7). The electrothermal film body is fixedly installed in the installation bottom shell, and the lower side of the electrothermal film body is provided with an insulation layer, and an anti-overheating layer is provided between the insulation layer and the installation shell. The anti-overheating layer comprises 25 %mass acrylic resin, 35 %mass graphite powder, 10 %mass carbon black, 5 %mass glass powder, 4 %mass fumed silica and other additives. The thickness of the anti-overheating layer is 3-5 mm, and the thermal conductivity is greater than 1.5 W/(M.K). The insulation layer comprises 25 %mass acrylic resin, 30 %mass hollow glass beads, 5 %mass calcined kaolin, 5 %mass bentonite, 5 %mass barite powder, 4 %mass titanium dioxide, 4 %mass fumed silica and other additives. The thickness of the insulation layer is 10-15mm, and the thermal conductivity is 0.1-0.3 W/(M.K). The installation bottom shell comprises a bottom plate and surrounding side guards, the anti-overheating layer is arranged between the bottom plate and the electrothermal film body, and the side guard is provided with a mortise and tenon structure. The four corners of the installation bottom shell are provided with electrical connection boxes, and the electrical connection boxes are all connected to the electric heating film body, and the electrical connection boxes can be electrically connected to each other, and there is also a height adjustment screw at the bottom of the installation bottom shell. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an anti-overheating electric floor heating module. 1Electric connecting box 2Side plate 3Tenon structure 4Zero line 5Quick connector 6Fire wire 7Electric heating film body 8Height adjusting screw 9Total power line box