JP3134804U - Regenerative electric floor heater - Google Patents

Abstract

[PROBLEMS] To achieve a comfortable heating effect for a long time by storing heat by inexpensive late-night power while maintaining the effective characteristics of electric heating and floor heating by enabling efficient heat storage, heat storage and effective heat dissipation. A heat storage type electric floor heating device is obtained.
A heat storage type electric floor heating apparatus is basically composed of a heat insulating layer, a heat storage layer in which an electric heating element is embedded, and a flat finishing layer, and a heat insulating cloth is interposed between these layers. Furthermore, the floor heating device is constructed by laying a surface flooring material on a flat finishing layer, wherein the heat insulating layer is formed of a heat insulating material made of foamed polystyrene and the like and a heat reflecting material made of a silver foil sheet, and the heat storage layer has a predetermined gravel. It is formed by laying a height of, and a plane finishing layer is constructed and formed with a mortar or cement material to a predetermined thickness, thereby enabling efficient heat storage, heat retention and heat dissipation.
[Selection] Figure 1

Description

  The present invention relates to a regenerative electric floor heating device that can provide a comfortable heating effect over a long period of time by gradually releasing heat that has been accumulated in a heat storage material by using cheap power such as midnight power.

  Conventionally, floor heating devices include devices that use hot water heat, hot air heat, solar heat, or electric heat. Among them, electric floor heating devices that use electric heat have a higher temperature than devices that use other heat sources. Is easy to adjust, and there is little unevenness in the temperature transmitted to the floor, and large-scale construction such as installation of heating equipment such as boilers and boilers for circulating fluid (hot water and hot air) is unnecessary. Therefore, as a safe and comfortable heating device, it is widely used not only in ordinary homes but also in offices. And as a system of the electric floor heating device, the electric heat generated by low-cost late-night power is stored in the heat storage material, and the surface floor material is heated and heated by using the heat radiation from the heat storage material. Are spreading rapidly due to their economic benefits.

In the conventional typical heat storage type electric floor heating device, a heat storage layer made of a heat storage material is formed on a heat insulating material laid on a floor of a foundation structure, and an electric heating element (heater) is formed in the middle or upper part of the heat storage layer. Wire) and is configured to naturally dissipate the heat accumulated in the heat storage layer through the heat dissipation layer and the surface flooring, and as the heat storage material, from the individual such as gypsum mortar and cement, There are many types, such as a mixture of crystalline compound salt and water that uses heat of fusion, and the form varies from a heat storage material made into a board to a container or bag, and even in its configuration, a heating element A panel type in which the heat storage material and the heat storage material are integrated, or a unit formed as a whole has been proposed.
JP 09-101042 A JP-A-11-101453 JP 2000-274709 JP 2001-304598 A JP2002-054818 JP 2002-106872 A JP2002-115856

  However, in the above conventional heat storage type electric floor heating, the structure is not sufficiently considered for efficient heat storage, heat retention and effective heat dissipation, so that sufficient heat storage cannot be performed, and sufficient heat storage is assumed. Even if it is possible, it is difficult to sustain heat for only a long period of time because it is not possible to radiate heat slowly at an appropriate temperature, or there is wasteful heat dissipation. This is a result that does not make full use of the effective use of electric power. In addition, the heat dissipation (heating) temperature is easily affected by the temperature of the heat storage material at that time, and the heating temperature may rise above the appropriate temperature due to excessive heat dissipation, making it easy to achieve an average and comfortable heating effect. It has the disadvantage that it cannot be obtained.

  The present invention has been made in view of the problems of the above-described conventional electric storage type electric floor heating device, and the effective characteristics of electric heating and floor heating are kept as they are, and moreover, it is possible to efficiently store heat with inexpensive midnight power. It is an object of the present invention to obtain a floor heating device that can maintain a comfortable heating effect for a long time.

  The invention of claim 1 is that a moisture-proof material made of vinyl film or the like is laid on the foundation structure floor of a building made of concrete slab, etc., and then a heat insulation layer, a heat storage layer in which an electric heating element is embedded, and a flat finish layer are sequentially formed. The floor heating device is formed by laminating and interposing a heat insulating cloth between each of these layers, and further laying a surface flooring material on the flat finishing layer, and the heat insulating layer is made of foamed polystyrene or the like. It is formed by a heat reflecting material composed of a heat insulating material and a silver foil sheet, the heat storage layer is formed by laying gravel at a predetermined height, and the planar finishing layer is constructed and formed to a predetermined thickness with mortar or cement material. The heat storage type electric floor heating device is used. Thereby, efficient heat storage, heat insulation and heat radiation are possible, and comfortable heating over a long time is realized.

  The invention of claim 2 is the same as that of claim 1 except that the heat storage layer formed by laying gravel has a height of 30 mm to 100 mm in the upper part of the embedded electric heating element. In the lower part, the height is set to 30 mm or more, and the layer height of the planar finishing layer formed by mortar or cement is set to 30 mm to 100 mm. As a result, a large amount of heat storage can be achieved more efficiently, and more gentle and stable heat dissipation can be realized.

  The invention of claim 3 is the invention of claim 1 and claim 2, wherein the electric heating element embedded in the heat storage layer is made of an insulating material made of powdered magnesium oxide inside a stainless steel or copper tube. An electric heating wire is inserted and arranged in the center of the tube filled with the insulating material, and both ends thereof are respectively connected to a pair of connecting terminals arranged in a protruding state from both openings of the tube, Both body openings are formed by sealing with a silicon resin material or the like. As a result, the performance deterioration and damage of each component constituting the electric heating element are effectively prevented, and the heating efficiency of the heat storage material is further improved.

  According to the heat storage type electric floor heating device according to the present invention, the basic structure has three layers of a heat insulating layer, a heat storage layer, and a flat finishing layer, and the heat insulating layer is formed of a heat insulating material made of foamed polystyrene and the like and a heat reflecting material made of a silver foil sheet. Therefore, a reliable heat insulation effect is obtained, and the heat storage layer is formed with a large amount of gravel with excellent heat storage power, so heat storage efficiency is good, and the flat finishing layer is constructed with mortar or cement material A moderate heat dissipation effect can be obtained. The synergistic action of each of these layers and the heat insulating cloth interposed between the layers enables efficient and large-scale heat storage by cheap midnight power, heat storage temperature maintenance and gentle and effective heat dissipation, resulting in a long time Comfortable heating can be realized by storing heat over the entire area.

  In addition, the required amount of heat storage varies depending on various conditions such as the local outside air temperature, the sunshine conditions at the installation location, the heat insulation conditions of the structure, or the indoor volume.However, according to the present invention, the maximum heat storage amount is simply set. Since it is possible to arbitrarily adjust the amount of gravel that forms the heat storage layer, i.e., by simply changing the layer height of the heat storage layer, it is easy to create a floor heating system that immediately responds to environmental conditions at the work site. Obtainable. And the allowable layer height range of the heat storage layer in which a comfortable heating effect can be reliably obtained by the present invention is 30 mm to 100 mm in the upper layer of the embedded heating element, and 30 mm or more in the lower layer. .

  In addition, since a flat finishing layer made of mortar or cement material is interposed between the heat storage layer and the surface flooring material, heat transfer to the surface flooring material is made gentler to prevent rapid heat dissipation and to achieve an appropriate temperature. Heating can be continued for a long time. For this purpose, it is desirable to set the layer height of the planar finishing layer in the range of 30 mm to 50 mm in consideration of the characteristics of the surface flooring.

  The electric heating element in the present invention is filled with an insulating material made of powdered magnesium oxide in the hollow inside of the tubular body, and a heating wire is inserted and arranged in the center of the filled insulating material, so that both openings of the tubular body are sealed. Therefore, even when this electric heating element is embedded in gravel adopted as a heat storage material, it is possible to effectively prevent damage and deterioration of components and members accommodated in the pipe. In addition, since the tube is made of stainless steel or copper excellent in heat conduction, the heating efficiency to the gravel heat storage material is good in combination with the enlarged heat conduction surface (tube outer peripheral surface). Yes.

  In addition to the above, the room temperature distribution can be leveled and the common effects of floor heating and electric heating such as noise and combustion exhaust are not generated, but also a large amount of gravel is used as a heat storage material. The far-infrared effect and the like can make the floor heating apparatus healthier and more environmentally friendly.

Hereinafter, embodiments of the present invention will be described with reference to the illustrated examples.
FIG. 1 is a partially cutaway perspective view showing a main part of a basic structure of a regenerative electric floor heating apparatus according to the present embodiment, FIG. 2 is a basic configuration diagram of the apparatus, and FIG. 3 is a connection state of an electric heating element in the apparatus. FIG. 4 is a transverse sectional view near one end of the electric heating element, and FIG. 5 is a sectional view taken along the line AA.

  In this embodiment, a moisture-proof material 2 made of vinyl film or the like is laid on a foundation structure floor 1 of a building made of concrete slab or a panel to prevent moisture from entering from the foundation structure floor 1. A heat insulating material 3 made of a slightly thick (around 20 mm) polystyrene foam material or the like is laid, and the upper part is covered with a heat reflecting material 4 made of a silver foil sheet, and the heat insulating material 3 and the heat reflecting material 4 form the heat insulating layer A. .

  Above the heat insulation layer A, heat storage cloths 7 and 8 are arranged on the top and bottom, and a heat storage layer B using a predetermined amount of gravel as the heat storage material 6 is formed. Inside the heat storage layer B, an electric heating element 5 is formed. Is buried. In embedding the electric heating element 5, first, an appropriate amount (usually about half of the predetermined usage amount) of gravel heat storage material 6 is laid uniformly and flatly on the lower heat insulating cloth 8 to form the lower layer 6 b. Then, the heating elements 5 are installed at intervals of about 200 mm, and after the electrical connection (FIG. 3) and taping are performed, about half of the gravel heat storage material 6 is laid from above the heating elements 5. This is done by forming the upper layer 6a. A temperature sensor (not shown) connected to the temperature regulator 12 is also embedded at an appropriate location in the heat storage layer B.

  The gravel as the heat storage material 6 is preferably pebbles of 25 mm or less, and the laying layer height varies depending on the outside air temperature in the area, the sunshine conditions at the installation location, the heat insulating conditions of the structure, the indoor volume, etc. However, since the amount of heat released increases in cold districts or poorly conditioned rooms, it is necessary to set a higher layer height in order to ensure long-term heating at appropriate temperatures. Usually, when the outside air temperature is about 0 ° C to -5 ° C and a comfortable room temperature of 18 ° C to 25 ° C (the floor surface temperature at this time is 28 ° C to 32 ° C) is to be secured by heat storage for 15.6 hours As in this embodiment, it is sufficient to set the total height of the heat storage layer B to about 100 mm. However, depending on the above various conditions, the electric heating element in which the layer height of the heat storage layer B is embedded If the upper layer 6a is set to 30 mm to 100 mm and the lower layer 6b is set to 30 mm or more, a sufficiently comfortable heating effect can be obtained.

  A flat finishing layer C is laminated on the heat storage layer B via an upper heat insulating cloth 7, and a surface flooring 11 is laid thereon to finish the floor. The planar finishing layer C is constructed and formed by a mortar 10 (which may be a cement material) interposing a wire mesh 9, and the layer height is gentle corresponding to the type of the surface flooring 11 and the like. It is set in the range of 30 mm to 50 mm so that heat is dissipated. In addition, the upper heat insulating cloth 7 interposed between the heat storage layer B and the flat finishing layer C is preferably provided with holes having an appropriate diameter at appropriate intervals particularly when it is necessary to increase the heat radiation efficiency.

The apparatus in the above example was installed in a laboratory under conditions of an outside air temperature of -5 ° C, an indoor temperature of 20 ° C, a ceiling height of 2.2 m, an actual area of 11.56 square meters, and an actual volume of 25.43 cubic meters. Table 1 shows the measurement results of the heat storage layer temperature and the room temperature.
In Table 1, “Heat storage time” in the “Category” column indicates the elapsed time (10 hours in total) while the heat storage material is energized and heated. It represents the passage of time (total 14 hours).

  The electric heating element 5 has an insulating material 52 made of powdered magnesium oxide (magnesia) in a hollow interior of a stainless steel or copper tube body 51 cut to a predetermined length according to the area where the heat storage material 6 is laid. The heating wire 53 made of a coiled resistor is inserted and arranged in the center of the inside of the tube 51 filled with the insulating material 52, and both ends of the heating wire 53 protrude from both openings of the tube 51. The other end is connected to a pair of connection terminals 54, 54 made of an electric conductor connected to the power line 57, and the connection terminals 54, 54 are plugged 55, 55 made of heat-resistant silicone resin or the like. In this state, the plugs 55 and 55 are fitted into both openings of the tube body 51, and the vicinity of both openings is fitted with protective caps 56 and 56. Yes (Figs. 4 and 5)Thereby, the tube body 51 is completely sealed, and the heating wire 53, the connection terminals 54 and 54, and the insulating material 52 are stably installed in the tube body 51.

The partial notch perspective view which showed the basic structure principal part in one Example apparatus of the thermal storage type electric floor heating apparatus which concerns on this invention. The basic composition explanatory drawing of an apparatus same as the above. Plane explanatory drawing which showed the connection state of the electric heating element of an apparatus same as the above. The cross-sectional view near one end of the electric heating element. AA line sectional view same as the above.

Explanation of symbols

A: Heat insulation layer B: Heat storage layer C: Plane finishing layer 1: Foundation floor 2: Dampproof material 3: Heat insulation material 4: Heat reflection material (silver foil sheet)
5: Electric heating element 51: Tube body 52: Insulating material (magnesium oxide)
53: Heating wire 54: Connection terminal 55: Plug 56: Protection cap 57: Power line 6: Heat storage material (gravel)
7, 8: Thermal insulation cloth 9: Wire mesh 10: Mortar material 11: Surface flooring material 12: Temperature controller

Claims (3)

A moisture barrier is laid on the floor of the building's foundation structure, and then a heat insulation layer, a heat storage layer in which an electric heating element is embedded, and a flat finishing layer are sequentially laminated, and a heat insulating cloth is interposed between each of these layers. A floor heating device in which a surface flooring is laid on a flat finishing layer, wherein the heat insulating layer is formed of a heat insulating material made of foamed polystyrene or the like and a heat reflecting material made of a silver foil sheet, and the heat storage layer has predetermined gravel. A regenerative electric floor heating apparatus, wherein the flat finishing layer is constructed and formed with a mortar or cement material to a predetermined thickness. The above-mentioned heat storage layer has a layer height of 30 to 100 mm for the upper layer of the embedded heating element and 30 mm or more for the lower layer, and a planar finish constructed by the mortar or cement material. The regenerative electric floor heating apparatus according to claim 1, wherein the layer has a thickness of 30 mm to 100 mm. The electric heating element embedded in the heat storage layer is filled with an insulating material made of powdered magnesium oxide inside a stainless steel or copper tube, and an electric heating wire is placed in the center of the pipe filled with the insulating material. And both ends of the tube are connected to a pair of connecting terminals arranged in a protruding state from both openings of the tube, and both the openings of the tube are formed by sealing with a silicon resin material or the like. The regenerative electric floor heating apparatus according to claim 1 or 2, wherein the regenerative electric floor heating apparatus is characterized.

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