JPH045357A - Upper floor material for double flooring - Google Patents

Abstract

PURPOSE:To facilitate installation and replacement of a heating element by piling heat insulation material in layers on an upper floor material and a floor material for double flooring in which the heating element is embedded. CONSTITUTION:A heating element 2 is embedded in a base material 1 for upper floor material comprising a calcium silicate plate, concrete plate, thermosetting resin and thermoplastic resin, metallic plate, etc. An electrode wire 3, safety device 4 for securing safety when abnormality arises, etc., are attached to the heating element 2, which is connected to a power supply cord through internal wiring cord 5. This constitution facilitate the arrangement and replacement of the heating element.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an upper flooring material for a double floor, and more specifically,
This invention relates to an upper flooring material for a double floor in which a heating element is embedded.

<Conventional technology> In recent years, the use of planar heating elements has been progressing in the civil engineering and construction fields.
In addition, in the construction field, it is used for floor heating, roof snow melting, etc. In addition, as home electronics and buildings become more intelligent, the consumption of planar heating elements is expected to increase significantly in the future.

Conventionally, planar heating elements used for floor heating applications include those in which a resistance heating wire or resistance heating element is sandwiched between boards, and the integrated body is fixed to the subfloor material; Alternatively, hot water piping is buried in the floor slab.

<Problem to be solved by the invention> In the former case, when an abnormality occurs after the board is installed, it is difficult to replace it because it is fixed to the floor, or it is necessary to strengthen the material strength by fixing it to the floor. Because of this, there are problems such as not being able to use it in double-floor structures.

In the latter case, when constructing a building, it is necessary to embed a heating element at the same time as the floor slab is being constructed, which can have a major impact on the construction process, or if an abnormality occurs, repair work that extends to the floor slab is required. Repair in this case means complete refurbishment,
Therefore, there are problems such as it being virtually impossible.

For this reason, the above-mentioned planar heating elements cannot be used in buildings with double floor structures, which are being actively introduced in the construction field.

An object of the present invention is to provide a planar heating element suitable for a building with a double floor structure, which can improve the strength, and is easy to install and replace.

Means for Solving the Problems> The present inventors conducted extensive research to solve the above problems, and as a result, completed the present invention.

That is, the present invention relates to an upper flooring material for a double bed in which a heating element is embedded, and an upper flooring material for a double bed in which a heat insulating material is laminated on the flooring material.

The upper floor material for a double bed according to the present invention is obtained by embedding a heating element 2 in a base material 1 for an upper floor material, as shown in FIG. The heating element 2 is normally attached with an electrode wire 3, a safety device 4 for ensuring safety in the event of an abnormality, and is wired to a power cord through an internal wiring cord 5.

The upper floor material base material for double floors in the present invention is made of hardened inorganic materials mainly composed of calcium silicate, cement concrete, etc., hardened thermosetting resins and thermoplastic resins, metals such as aluminum, etc. Consisting of materials alone or in combination. These plates or die-cast products cost 1,20
It is preferable to design the device so that it weighs up to about 100 kg, so that it can be carried by hand.

The heating element used in the present invention refers to a sheet made of conductive fibers with a diameter of 50 μm or less such as carbon fibers, graphite fibers, or metal fibers, or a sheet made of conductive fibers such as carbon fibers, graphite fibers, or metal fibers, or conductive powders such as carbonaceous powders or metal powders. , electrode wires are attached to a sheet or the like dispersed in a matrix of rubber or the like, and there is no problem with those using conductive fibers or conductive powder alone or in combination. It is also possible to arrange a metal wire heating element that has been insulated.

The above electrode wires are foils, single wires, stranded wires, braided wires, etc. made of metals such as copper, aluminum, iron, nickel, zinc, tin, chromium, alloys thereof, or plated materials. These can be used alone or in combination.

As a safety device to ensure safety in the event of an abnormality, a reversible switch such as a thermostat or an irreversible switch such as a temperature fuse is used. Further, in the upper flooring material for a double floor according to the present invention, a heat insulating material can be laminated on the lower part of the flooring material in order to further increase the efficiency of heat generation to the upper part.

Examples of the heat insulating material used include urethane foam material, molded polystyrene foam material, wood fiber board, calcium silicate molded board, and the like.

The upper floor material for a double floor of the present invention can be easily obtained by, for example, inserting a heating element into the base material for the upper floor material for a double floor described above and fixing this with an adhesive such as an epoxy adhesive. It will be done. When using a heat insulating material, it is advisable to attach it to the lower part of the above-mentioned flooring material using an appropriate method.

Further, the upper flooring material for a double floor according to the present invention can be provided with a flooring material such as a carpet as appropriate on its upper part.

<Effects of the Invention> The upper flooring material for a double bed according to the present invention is a planar heating element that can have improved strength compared to conventional heating elements and is easy to arrange and replace.

<Example> Next, the present invention will be further explained by examples.

A heating element made of carbon fiber was sandwiched between a calcium silicate plate measuring 4501 mm square and 5 mm thick and a calcium silicate plate measuring 451 mm square and 20 mm thick, and bonded with epoxy adhesive. .

A safety device was placed in series with the electrode wire of the heating element and in contact with the heating element. This is placed at a height of 30C11 above the floor using iron support legs, and when a power source of 100V is applied and heat is generated at an output of 400W/Po, 240W/if upwards and 150W/n downwards.
The calorific value of f was measured. At this time, the surface temperature of the upper floor material rose to 45°C under the condition that the room temperature was 20°C.

Urethane foam insulation material (45 cm square, 25 cm thick) was attached to the lower part of the upper flooring material used in Example 1, and a power supply of 100 cm was applied.
In addition, when generating heat at an output of 400 W/nf, the amount of heat was measured to be 320 W/nf upward and 75 W/nf downward.

At this time, the surface temperature of the upper floor material was 5.
The temperature rose to 0°C.

A tile carpet was placed on the planar heating element of Example 2 of Imperial ship base,
When generating heat at an output of 400 W/rrf with a power supply of 100 μm, the amount of heat was measured to be 320 W/nf upward and 75 W/rd downward. At this time, the surface temperature of the tile carpet rose to 30°C under the condition that the room temperature was 20°C.

[Brief explanation of the drawing]

Figure 1 relates to the upper flooring material for a double floor in which a heating element is embedded according to the present invention, in which (a) shows a plan view and (b) shows a cross-sectional view. DESCRIPTION OF SYMBOLS 1... Base material for upper flooring, 2... Heating element, 3... Electrode wire, 4... Safety device, 5... Internal wiring code, 6...
··Power cord.

Claims (1)

[Claims] 1. Upper floor material for a double floor in which a heating element is embedded. 2. An upper flooring material for a double floor, which is obtained by laminating a heat insulating material on the flooring material according to claim 1.