JPS63135726A - Heating panel - Google Patents

Abstract

PURPOSE:To generate heat by utilizing the latent heat of fusion and farinfrared rays and absorb the heat into a floor member or the like efficiently, by a method wherein a heating panel, used for a floor heating device or the like, is formed by laminating a bottom plate, an insulating material, a heating body, a heat accumulating body, encapsulating a heat accumulating material, and a far-infrared rays radiating body. CONSTITUTION:A heating panel 1 is constituted of an outer casing 2, used both for a bottom plate, an insulating mat 3, generating body 4, consisting of area heaters 4, a heat accumulating body 5 and a far-infrared rays radiating body 5, which are laminated sequentially. The heat accumulating body, 5 consisting of the water-containing salt such as sodium acetate trihy drate series, sodium thiosulfate pentahy drate series, sodium chloride series, calcium chloride series or the like is encapsulated in a plastic vessel so as not to leak when molten. The far-infrared rays radiating body 6 is a corrugated aluminum foil coated with ceramics of zirconia series, alumina series, titanium series, cobalt series or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heating panel, and particularly to a heating panel in which heat radiated from a heating element is absorbed by a heat storage element that utilizes latent heat of fusion and radiated from a surface of a far-infrared radiator.

Conventional Technology Recently, floor heating systems and the like have been proposed in which the heat radiated from a heat source such as a heater is absorbed by a heat storage material that changes phase at a constant temperature, and the latent heat of fusion is used to efficiently heat the room. There is. (For example, JP-A-Sho, 55-131691
).

In the conventionally proposed floor heating apparatus using latent heat of fusion, a heating panel is constructed by sequentially laminating a backing material, a heat insulating material, a heat storage body, a heating element, and a surface material.

Problems to be Solved by the Invention The floor heating device proposed above uses the latent heat of fusion of the heat storage material, so even if the heating element stops generating heat, heat is radiated from the heat storage material for a long time. Although high floor heating panels can provide extremely high thermal efficiency compared to the conventional method of heating simply by heating the surface material with a heating element, the current situation is that the thermal efficiency of floor heating systems is still lower than that of other heating methods.

An object of the present invention is to improve the above-mentioned proposed floor heating panel using a heat storage material, and to provide a heating panel with even higher thermal efficiency.

6 Means for Solving the Problems The present invention was developed by focusing on the fact that far-infrared radiation, which has a long wavelength among infrared rays, has good permeability through ordinary materials. By using these, we were able to obtain a heating panel with extremely high thermal efficiency due to their synergistic effect.

Namely, the heating panel of the present invention includes a bottom plate and a heat insulating material.

We adopted a configuration characterized by consisting of a heating element, a heat storage body sealed with a heat storage material that changes its phase at a constant temperature, and a far-infrared radiator.

As the above-mentioned heat storage material, heat storage materials made of hydrate salts such as sodium acetate trihydrate, sodium thiosulfate pentahydrate, sodium chloride, and lucium chloride can be used.

Further, as the container for sealing the heat storage material, an appropriate container such as plastic or aluminum foil can be used. Note that the heat storage substance may be sealed in the container as it is, or the heat storage substance may be impregnated into a base material such as a nonwoven fabric and then sealed in the container. This form is suitable for wall heating panels because it can maintain a certain shape even if the heat storage material melts.

As the above-mentioned far-infrared radiator, various materials such as ceramics mainly made of zirconia, alumina, titanium, cobalt, etc. can be used, and the form thereof may be coated on the surface of the packaging container of the heat storage material. Alternatively, a material coated on the surface of a separate thin plate such as a corrugated aluminum plate may be used.

As the heating element, an appropriate one such as a planar heater, a printed heater, or hot water piping can be used.

Furthermore, in the laminated form of the panel, if a reflective plate is provided below the heat generating body, the heat emitted from the heat generating body is more efficiently absorbed by the heat storage body.

action The heat radiated from the heating element is absorbed by the heat storage material.

The heat storage material melts and stores heat when it reaches a certain temperature. After that, the supply of energy to the heating element is stopped, and when the temperature of the heat storage material falls below a certain level, it gradually solidifies and radiates heat over a long period of time during the assimilation process, thereby heating the far-infrared radiator. , emits far-infrared rays from its surface. A heat storage material that changes phase, that is, a heat storage material that uses latent heat of fusion, has a high heat storage efficiency, so the heat efficiency is high, and moreover, the heat is more easily absorbed by flooring or wall materials such as wooden boards or shutan than by the surface of the far-infrared radiator. Since it is emitted with a long wavelength, it is efficiently absorbed.

EXAMPLE An example of the present invention will be described in detail below with reference to the drawings.

In the figure, 1 indicates a heating panel body, and the panel body is
As shown in FIG. 2, an outer case 2 that also serves as a bottom plate includes a heat insulating mat 3, a heating element 4 consisting of a sheet heater 4, a heat storage element 5,
It is constructed by sequentially stacking far-infrared radiators 6. The outer case 2 is formed in the shape of a shallow box having a certain degree of rigidity and having an open upper surface, and a lower cord drawer for supplying power to the planar heater 4 is opened in the side wall thereof. The planar heater 4 is controlled by a temperature detector 9 such as a thermostat, and when the temperature falls below a certain level, it is heated by being energized. Although not shown, it naturally has safety devices such as an earth leakage preventer and a temperature fuse.

The heat storage body 5 is a sealed plastic container to prevent leakage when a heat storage material made of a hydrated salt such as sodium acetate trihydrate, sodium thiosulfate pentahydrate, sodium chloride, or lucium chloride is dissolved. It is constructed in a sealed manner. Far-infrared radiators are corrugated aluminum foil, zirconia-based, alumina-based, titanium-based,
The material is coated with cobalt-based ceramics.

When using the heating panel configured as described above as a floor heating panel, 1. For example, install it using an appropriate construction method such as laying it on joists or rough floorboards and directly laying shutan, tatami, or flooring material on top of it. be able to.

What is shown in FIG. 3 is another embodiment of the heating panel of the present invention. In this embodiment, a reflector plate 12 is provided between the bottom hole and the surface heater, and the heat radiation from the heater is directed from the surface of the heat storage body. It reflects the heat from the bottom and prevents it from escaping. Furthermore, in this example, the far-infrared radiator 14 was directly coated on the surface of the packaging container 13 of the heat storage body.

In order to investigate the characteristics of the heating panel of the present invention constructed as described above, experiments were conducted to examine the temperature changes between a heat storage body alone and a heat storage body surface coated with a far-infrared radiator at an ambient temperature of 25 to 27°C. Then, the results were changed as shown in the graph of Figure 5.

In the figure, group A shows the change in the surface temperature of the heat storage body, and group B shows the temperature change on the surface of the board when a thick wooden board with a thickness of 150 mm is placed on the surface of the heat storage body. In addition, (a) shows the heat storage body alone, and (b) shows the heat storage body surface coated with a far-infrared radiator.

As is clear from the figure, the surface temperature of the heat storage body that is not coated with the far-infrared radiator maintains a higher temperature for a longer period of time than that of the heat storage body that is coated. On the other hand, the coating maintains a high temperature for a longer period of time. This clearly indicates that the wooden board absorbs more heat radiated from the heat storage element when coated with the far-infrared radiator. In this example, the heat storage body is approximately 90°C.
It can be seen that the surface of the plate remains at 40°C or higher for about 3 hours or more even after the heater power is turned off. Therefore, by heating with a heater every 3 hours, the board surface temperature can be maintained at 40° C. or higher at all times, and energy-saving heating with extremely high thermal efficiency can be achieved.

Note that the present invention is not limited to the above embodiments, and for example,
The shape of the bottom may not be box-shaped but may be simply plate-shaped, and the outer frame may be constructed separately.

Furthermore, the design of the calculator can be changed by adopting various forms of the laminate.

Effect The present invention is configured as described above, and since it uses a heat storage material that utilizes latent heat of fusion, the heat storage efficiency is high, and furthermore,
The heat is from the far-infrared radiator surface.

It is efficiently absorbed because it is emitted as a long wavelength that is easily absorbed by flooring or wall materials such as wooden boards and flooring materials.

Therefore, compared to conventional systems, the flooring and wall materials can maintain a high surface temperature for a long time after the supply of energy to one heating element is stopped, and energy-saving heating with extremely high thermal efficiency can be achieved. Furthermore, the heating panel of the present invention can be constructed by simply laying it on the floor joists, etc., so it has excellent effects such as simplifying the heating work.

[Brief explanation of the drawing]

The drawings show an embodiment of the heating panel of the present invention, FIG. 1 is a sectional view thereof, FIG. 2 is a developed view thereof, FIG. 3 is a sectional view of another embodiment, and FIG. 4 is a perspective view of the main part thereof. . FIG. 5 is a graph showing the heating panel characteristics of the present invention. 1: Heating panel body 2: Outer frame 3: Heat insulation mat
4: Planar heater 5: Heat storage body 6: Far-infrared radiator
12: Reflector 13: Packaging container 14: Reflector

Claims (1)

[Claims] A heating panel characterized by being constructed by sequentially laminating a bottom plate, a heat insulating material, a heating element, a heat storage body sealed with a heat storage material that changes its phase at a constant temperature, and a far infrared radiator.