JPH045356A - Heat insulation material for floor heating - Google Patents

Abstract

PURPOSE:To make temperature distribution of a floor surface uniform by attaching a plate-like heating element to the lower surface of a floor plate, and piling a soft heat insulation material, which absorbs the unevenness of the plate-like heating element, in layers on the heat insulation board of the lower face of the floor plate. CONSTITUTION:A heat insulation material A is provided to improve the heat insulation effect between members 1, whose roots are thick, with a floor plate 2 laid on the tops of the members 1 and with a plate-like heating element 3 attached to the lower face of the floor plate 2. This heat insulation material A comprises a soft heat insulation material 5, which absorbs the unevenness of the plate-like heating element 3 and the heat insulation board 4, which is layered on the soft heat insulation material 5. In addition, the soft heat insulation material 5 absorbs the thickness of the plate-like heating element 3 at the portion, to which the accessory 6 of the plate-like heating element 3 is provided, and abuts on the portion, to which the accessory 6 is not provided, at a given thickness. Therefore, the plate-like heating element 3 uniformly abuts on the floor plate 2 without clearance.

Description

[Detailed description of the invention] <Industrial application field> This invention relates to a heat insulating material for floor heating.

<Conventional Technology> Methods for heating the entire house include a hot air convection method using an air conditioner or a stove, and a floor heating method.

Warm air convection systems use hot air convection to raise the room temperature, resulting in a temperature distribution where the temperature near the ceiling is high and the temperature near the floor is low.

For this reason, the room temperature must be relatively high, between 21 and 23 degrees Celsius, to feel warm.

On the other hand, in the floor heating system, the heat source is installed on the floor and uses radiant heat from the floor, so the temperature distribution in the room is almost uniform from the floor to the ceiling, which is the opposite of the hot air convection method. I have a cold head and warm feet, so even at relatively low temperatures of 16 to 18 degrees Celsius, I feel warm enough and comfortable. Furthermore, since there is no flame, it is safe for children and the elderly, and is hygienic as it does not generate combustion gas or dust. For this reason, floor heating is attracting attention as an effective heating method.

As shown in Fig. 2, the structure of floor heating is that a planar heating element (23 ). In such floor heating, a heat insulating material (24) is provided along the lower surface of the planar heating element (23) in order to improve heat insulation properties.

As this heat insulating material (24), a plastic foam such as polystyrene foam or foamed polyurethane is used.

<Problem to be solved by the invention> By the way, the planar heating element (23) has attached parts (25
) or on the lower surface side (the side that comes into contact with the insulation material).

Therefore, the parts where these exist are covered with insulation material (24
) will come into contact with the attached part (25), and the sheet heating element (23) will be placed in the position where the attached part (25) is located or the heat insulating material (
24).

Therefore, the planar heating element (23) or the attached part (25) bends downward with the apex, and the planar heating element (23) and the floorboard (22) bend downward.
) and a gap (26)... will be formed. By creating this gap (26), the sheet heating element (23)
The heat was directly transmitted to the floorboard (22) from the gap (26).
), the temperature of the floor surface in this area decreases, causing variations in the temperature distribution of the floor heating.

The present invention has been made in order to solve the above-mentioned problems, and provides a heat insulating material that can uniformly bring the planar heating element and the floorboard into close contact with each other and keep the temperature distribution of the floor heating in a good condition. The purpose is to provide the following.

Means for Solving the Problems> The insulating material for floor heating of the present invention covers the lower surface of the sheet heating element along the lower surface of the floorboard, and the sheet heating element is placed on the upper surface of the insulation board. It is characterized by being laminated with soft heat insulating material that absorbs the unevenness of the surface.

<Function> According to the insulating material for floor heating with the above configuration, the soft insulating material laminated on the top surface of the insulation board is compressed and absorbs the thickness of the attached parts at the part where it comes into contact with the attached parts such as the thermostat. do. On the other hand, other parts maintain a constant thickness. Therefore, the planar heating element adheres uniformly to the floorboard regardless of the presence or absence of uneven portions.

<Example> An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing the structure of a floor heating using a heat insulating material for floor heating according to an embodiment of the present invention.

In the figure, the symbol (1) indicates the joists installed parallel to each other at a certain interval, and a floorboard (2) is laid on the top surface of each joist (1), and the bottom surface of the floorboard (2) is used for sheet heating. Body (3
) are aligned.

A heat insulating material (^) is provided between each joist (1) in order to reduce heat loss of the planar heating element (3) and enhance the heat insulation effect. This heat insulating material (^) is a sheet heating element (3
) and an insulating boat (4) laminated on the soft insulating material (5). The soft insulation material (5) is an insulation board (
4) and is laminated on the upper surface of the sheet heating element (
3) is provided along the lower surface.

In the figure, reference numeral (6) indicates accessory parts such as a thermostat, electrodes, and lead wires provided on the lower surface of the planar heating element (3).

The insulation board (4) has sufficient hardness to maintain the shape of the insulation material (^). This insulation board (4
) is preferably one with low thermal conductivity, such as those made of plastic foams such as polystyrene foam, polypropylene foam, urea foam, vinyl chloride foam, and foamed polyurethane.

The insulating boat (4) is fixed to the joist (1) using nails, hanging fittings (not shown), or the like. The fixing position of the insulation board (4) and the joist (1) will vary depending on the restoring force and thickness of the soft insulation material (5), but it may be necessary to fix the sheet heating element (3) or the soft insulation material (5). The position is such that it can fit along the floorboard (1) without any gaps.

The soft heat insulating material (5) may be anything that has enough flexibility to easily absorb the unevenness of the planar heating element (3) (thickness of the accessory part (6)), such as a soft foam boat, glass wool, etc. , soft fiberboard, etc.

The soft heat insulating material (5) is compressed according to the thickness of the attached part (6) at the part of the planar heating element (3) where the attached part (6) such as the thermostat is located. Absorbs thickness. On the other hand, in locations where there is no accessory component (6), the sheet contacts the planar heating element (3) with a constant thickness. therefore,
The planar heating element (3) contacts the floorboard (2) uniformly without any gaps.

In addition, even if the floorboard (2) is deformed due to repeated heating and cooling, the warp transmitted to the soft heat insulating material (5) or the sheet heating element (3) will be absorbed and the surface Since the shaped heating element (3) is brought into contact with the floorboard (2), there is no risk of creating a gap.

The planar heating element (3) is constructed by arranging conductive tapes made of a fluororesin film or the like alternately or at required intervals with respect to non-conductive tapes in the warp direction or the weft direction, while A non-conductive tape is arranged in the direction and woven into a plain weave structure, and a conductive series in which a plurality of copper foil threads are arranged in parallel, and a non-conductive series in which a plurality of fiber threads are arranged in parallel adjacent to each other on both sides. Electrode strips are provided at regular intervals in the longitudinal or latitudinal direction.

The planar heating element (3) is not limited to the above-mentioned fabric-like one, but can be a thin one that has high thermal conductivity and does not leave a gap when the floorboard (2) is laid on top of it. good. For example, a material in which carbon particles are dispersed in a plastic binder is applied to a sheet or cloth to form a heat generating layer, and electrode wires are glued or sewn to this to form a heat generating layer, or a metal interlining is used to form a heating layer. A heating wire made of a resistor may be arranged in a meandering manner.

<Effects of the Invention> As described above, according to the insulating material for floor heating of the present invention, the unevenness of the planar heating element can be absorbed by the soft insulating material laminated on the top surface of the insulating board. By uniformly bringing the heating element into close contact with the floorboard, the temperature distribution on the floor surface of the floor heating system can be made uniform.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing how the heat insulating material for floor heating of the present invention is used, and FIG. 2 is a cross-sectional view showing how the heat insulating material for conventional floor heating is used. 2... Floor plate, 3... Planar heating element, 4... Heat insulation board, 5... Soft insulation material 2... Floor plate 3...- Planar heating element 4-- Heat insulation board 5-... −Soft insulation material

Claims (1)

[Claims] 1. In the insulating material for floor heating that covers the lower surface of the sheet heating element (3) along the lower surface of the floorboard (2), the sheet heating element (3) is placed on the upper surface of the insulation board (4). An insulating material for floor heating characterized by laminating a soft insulating material (5) that absorbs the unevenness of ).