US 2004/0175163 A1Published application

Low-temperature burn preventing electric floor heating system, electric floor heating panel, floor heating floor material, and electric floor heating device

AssigneeNippon Oil Co., Ltd.

InventorsKazuo Fukai, Akiyoshi Kojima, Takefumi Kohno

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Abstract

An electric floor heating system, comprising an electric floor heating panel and a floor heating material formed by laminating integrally an upper material with a thickness of (d), a heat diffusing material with a thickness of (t), and a lower material, wherein the upper material thickness (d) and the heat diffusing material thickness (t) are set to fulfill relational expression (I): t≧a×d2+b (I) (d: 0.01 to 12 mm, t: 30 to 1,000 μm) into which coefficients a and b predetermined by the maximum value (p2) of the maximum power are introduced, thereby accomplishing a comfortable heating environment without causing low temperature burn.

Claims12

Dependent claims

An electric floor heating system capable of preventing low-temperature burn which system comprises an electric floor heating panel and a floor material placed thereon;

wherein said floor material is formed by laminating integrally an upper material having a thickness (d) of from 0.01 to 12 mm and forming the floor surface, a heat diffusing material having a thickness (t) of from 30 to 1,000 μm and disposed below the upper material horizontally to the floor surface, and a lower material whose lower surface contacts the panel;
and wherein when said panel is selected from those whose minimum value (p1) of the maximum power is 65 W/m2 and maximum value (p2) of the maximum power is any of (1) to (12) below, said upper material thickness (d) and said heat diffusing material thickness (t) are set to fulfill relational expression (I):
t≧a×d2+b (I)
into which coefficients a and b predetermined by the maximum value (p2) of the maximum power are introduced, such that said floor material is so constructed that with the floor surface blocked by a human body and heated by said panel selected, the contacting surface temperature of the human body is kept at 42° C. or below:
(1) when p2 is 140 W/m2, a is 2.1 and b is 50;
(2) when p2 is 150 W/m2, a is 2.9 and b is 71;
(3) when p2 is 160 W/m2, a is 4.5 and b is 113;
(4) when p2 is 170 W/m2, a is 7.6 and b is 163;
(5) when p2 is 180 W/m2, a is 17.9 and b is 228;
(6) when p2 is 230 W/m2, a is 69.4 and b is 553;
(7) when p2 is 240 W/m2, a is 79.7 and b is 618;
(8) when p2 is 250 W/m2, a is 90.0 and b is 683;
(9) when p2 is 260 W/m2, a is 100.3 and b is 748;
(10) when p2 is 270 W/m2, a is 110.6 and b is 813;
(11) when p2 is 280 W/m2, a is 120.9 and b is 878;
and
(12) when p2 is 290 W/m2, a is 131.2 and b is 943.

14 more elements

An panel for an electric floor heating, formed by connecting foldably a predetermined number of electric heating boards to each other, wherein said panel is so designed as to cover 60 to 70 percent of a room where said panel is to be installed;

the minimum value (p1) of the maximum power of said panel is 65 W/m2 and the maximum value (p2) of the maximum power of said panel is limited depending on a floor material combined therewith;
said floor material is formed by laminating integrally an upper material having a thickness (d) of from 0.01 to 12 mm and forming the floor surface, a heat diffusing material having a thickness (t) of from 30 to 1,000 μm and disposed below said upper material horizontally to the floor surface, and a lower material disposed below said heat diffusing material;
and when said upper material thickness (d) and said heat diffusing material thickness (t) fulfill any of the relations of (1) to (12) below, the maximum value (p2) of the maximum power is determined as follows:
(1) when t≧2.1×d2+50 is fulfilled, p2 is 140 W/m2;
(2) when t≧2.9×d2+71 is fulfilled, p2 is 150 W/m2;
(3) when t≧4.5×d2+113 is fulfilled, p2 is 160 W/m2;
(4) when t≧7.6×d2+163 is fulfilled, p2 is 170 W/m2;
(5) when t≧17.9×d2+228 is fulfilled, p2 is 180 W/m2;
(6) when t≧69.4×d2+553 is fulfilled, p2 is 230 W/m2;
(7) when t≧79.7×d2+618 is fulfilled, p2 is 240 W/m2;
(8) when t≧90.0×d2+683 is fulfilled, p2 is 250 W/m2;
(9) when t≧100.3×d2+748 is fulfilled, p2 is 260 W/m2;
(10) when t≧110.6×d2+813 is fulfilled, p2 is 270 W/m2;
(11) when t≧120.9×d2+878 is fulfilled, p2 is 280 W/m2;
and
(12) when t≧131.2×d2+943 is fulfilled, p2 is 290 W/m2.

13 more elements

Dependencies are inferred from the claim text.