JP2001304596A - Thermal storage type floor heating panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thermal storage type floor heating panel for realizing a large weight reduction while assuring a sufficient strength, rigidity, stable thermal storage, heat insulation and heat radiating properties and to improve its executability. SOLUTION: The thermal storage type floor heating panel 11 is formed by forming a substantially tray-like recess 312 on an upper surface of a heat insulator made of a foamable resin at a lower side of a floor panel 21 made of a metal plate obtained by laminating a substantially flat front plate 211 and a rugged rear plate 212 in a hollow state and laminating a casing 31 for containing a latent heat storage material 51 and a heating material 41 in the recess 312.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage type floor heating panel in which a heating element and a heat storage material are incorporated in a floor panel of a free access floor.

[0002]

2. Description of the Related Art Among electric floor heating systems that heat the room from the floor surface using heat generated by electric power, a heating element and a heat storage material are especially provided on a double floor panel called an OA floor or a free access floor. As an incorporated floor heating panel, the present applicant has proposed and has commercialized a regenerative floor heating panel according to Utility Model Registration No. 3023251. (FIG. 8) This regenerative floor heating panel 1 has a heat insulating material 3, a heating element 4, a latent heat storage material 5, an upper plate 6, and a floor plate 7 sequentially laminated on a lower plate 2, and is attached at four corners. A space is provided on the floor slab 9 via a bolt leg 8 whose height is adjustable.

In this type of regenerative floor heating panel 1, the heating element 4 is heated at night using inexpensive late-night electric power, and the heat is stored in a latent heat storage material 5 to gradually release the heat during the day. I have to. Thereby, even during the daytime, the cold at the feet is eliminated, and the sensible temperature increases, so that the air conditioning load during the daytime can be reduced and energy saving can be promoted.

[0004]

The lower plate 2 and the upper plate 6 of the regenerative floor heating panel 1 are composed of a heat insulating material 3 and a heating element 4.
And a casing for housing the latent heat storage material 5,
From the viewpoint of strength and form stability, a metal plate such as a steel plate or an aluminum plate is selected as a preferable constituent material. In addition, the floor plate 7 in the regenerative floor heating panel 1
Is required to have sufficient strength and rigidity to withstand the load of various OA equipment and office furniture installed on the floor surface, and to be excellent in heat insulation, and to be stored in the latent heat storage material 5. A calcium silicate plate is selected as a preferable constituent material from the viewpoint of the heat radiation characteristic of gradually releasing the heat.

However, as described above, the regenerative floor heating panel 1 in which the floor plate 7 made of a calcium silicate plate and the casing made of a metal plate are laminated has a considerably large total weight. , And
A large load is applied to the floor structure of the office building or the like to be constructed.

More specifically, the plane size of the regenerative floor heating panel 1 is 500 mm square, and the calcium silicate plate serving as the floor plate 7 has a deflection of about 1.7 mm or less under a centralized load of 300 kgf. The thickness is about 17 mm to satisfy the strength, and the casing is about 1 mm in thickness.
Lower plate 2 made of steel plate and upper plate 6 made of steel plate having a thickness of about 1.6 mm
And about 3 kg of sodium sulfate.
When a latent heat storage material 5 made of water salt and a heat insulating material 3 made of hard urethane foam having a thickness of about 20 mm are accommodated,
The weight of the calcium silicate plate itself is about 9 kg, the weight of the casing is about 2 to 3 kg, and one of the regenerative floor heating panels 1
The total weight per sheet was about 16 kg.

Therefore, the present invention is to provide a material having sufficient strength and rigidity as a floor material and stable heat storage, heat retention and heat dissipation.
The solution is to provide a regenerative floor heating panel that is significantly lighter and thinner than before, and to improve the workability and reduce the construction cost of electric floor heating adopted for free access floors, etc. I do.

[0008]

In order to solve the above-mentioned problems, the configuration of the regenerative floor heating panel according to the first aspect of the present invention comprises a floor panel forming a floor surface or a floor finishing base surface;
A regenerative floor heating panel comprising a superposed latent heat storage material below the floor panel, an electric heating element for heating the latent heat storage material, and a casing surrounding the latent heat storage material and the heating element. The floor panel is a hollow panel made of a metal plate formed by laminating a substantially flat front plate and a back plate having irregularities, and the casing is made of a heat insulating material made of a foamable resin. A substantially dish-shaped concave portion is formed on the upper surface, and the latent heat storage material and the heating element are accommodated in the concave portion.

[0009] The structure of the regenerative floor heating panel according to a second aspect of the present invention includes a floor panel forming a floor surface or a floor finishing base surface, a latent heat storage material polymerized below the floor panel,
An electric heating element for heating the latent heat storage material, and a casing surrounding the latent heat storage material and the heating element, a heat storage floor heating panel, wherein the floor panel has a substantially flat surface side, The casing is a panel made of a metal plate having rib-shaped protrusions formed on a back surface side thereof, wherein the casing has a substantially dish-shaped recess formed on an upper surface of a heat insulating material made of a foamable resin, and the latent heat storage material is formed in the recess. And a heating element.

That is, in these inventions, a floor panel made of a metal plate is adopted in place of a floor plate made of a conventional calcium silicate plate, and a heat insulating material made of a foamable resin having a concave portion formed on an upper surface is used as a casing. A latent heat storage material and a heating element are accommodated in the recess, and are superposed on the lower side of the floor panel. Conventionally, floor panels made of metal plates are considered to be unsuitable for slowly radiating the heat accumulated in the latent heat storage material because of the high thermal conductivity. However, by forming irregularities on the back plate of the floor panel (Claim 1) or by forming rib-like projections on the back surface of the floor panel (Claim 2), the back surface of the floor panel is made to be a non-flat surface. In addition, an air layer having a heat insulating effect is formed between the surface of the floor panel and the latent heat storage material, and the contact area between the floor panel and the latent heat storage material can be limited. Thus, it is possible to appropriately adjust the speed of transmitting heat radiated from the latent heat storage material to the room through the floor panel. In addition, hollow floor panels with irregularities formed on the back plate and floor panels with rib-shaped projections formed on the back surface ensure the strength and rigidity of the floor panel itself,
It is extremely advantageous to realize the weight reduction. Furthermore, as for the casing, the heat insulating material, the heating element and the latent heat storage material are surrounded by the lower plate and the upper plate of the metal plate material as in the related art, and the heat insulating material made of foamable resin is used as the outer shell, By housing the latent heat storage material and the heating element in a substantially dish-shaped recess formed on the upper surface of the heat insulating material, the casing can be significantly reduced in weight.

Further, as described in claim 3, by covering the bottom and side surfaces of the casing with a thin metal plate or a thin resin plate, the strength of the casing is also ensured, so that the casing can be transported or constructed. The inside of the casing can be protected from impact and the like. In this case, the strength and rigidity of the flooring material is exhibited by the floor panel made of metal plate,
The metal thin plate or resin thin plate serving as the outer shell of the casing can be lighter than the conventional lower plate. Therefore, according to the present invention, the thickness of the casing can be reduced while securing the same strength and rigidity as in the related art, and the overall thickness of the regenerative floor heating panel can be reduced.

In addition, a regenerative floor heating panel according to a fourth aspect of the present invention includes a floor panel forming a floor surface or a floor finishing ground surface, a latent heat storage material polymerized below the floor panel,
An electric heating element for heating the latent heat storage material, and a casing surrounding the latent heat storage material and the heating element, a heat storage floor heating panel, wherein the floor panel has a substantially flat top plate. A hollow panel made of a metal plate formed by laminating a back plate having projections and depressions, wherein the casing is a resin box-shaped container having an open upper surface, via an air layer or a heat insulating material, It is characterized by housing a latent heat storage material and a heating element.

[0013] Further, according to a fifth aspect of the present invention, there is provided a regenerative floor heating panel comprising: a floor panel forming a floor surface or a floor finishing base surface; and a latent heat storage material polymerized below the floor panel.
An electric heating element for heating the latent heat storage material, and a casing surrounding the latent heat storage material and the heating element, a heat storage floor heating panel, wherein the floor panel has a substantially flat surface side, It is a panel made of a metal plate on which a rib-shaped projection is formed on the back side, and the casing is placed in a resin-made container having an open upper surface, via an air layer or a heat insulating material,
The latent heat storage material and the heating element are housed therein.

That is, in these inventions as well, according to the first and second aspects of the present invention, a metal floor panel having irregularities formed on the back plate (claim 4) or a rib-like projection formed on the back surface. By employing the metal floor panel described above, it is possible to adjust the heat transfer speed of the floor panel, and to ensure the strength and rigidity of the floor panel.
It is intended to reduce the weight. In these inventions, the casing is formed by a resin-made box-shaped container having an open upper surface, and a latent heat storage material and a heating element are accommodated inside the casing via an air layer or a heat insulating material. Even with such a configuration, it is possible to realize a significant reduction in the weight of the casing.

Further, as set forth in claim 6, an urging means made of an elastic body and a supporting plate supported by the urging means are provided in a box-shaped container constituting the casing, and the latent heat storage is provided. A material and a heating element may be placed on the support plate and pressed against the back surface of the floor panel.
According to the present invention, the contact area between the back surface of the floor panel and the latent heat storage material can be easily adjusted, and the transmission speed of heat radiated from the latent heat storage material to the room via the floor panel can be appropriately adjusted.

[0016] Further, according to a seventh aspect of the present invention, there is provided a heat storage type floor heating panel, wherein a latent heat storage material and an electric type heating the latent heat storage material are provided inside a floor panel forming a floor surface or a floor finishing base surface. A heat storage type floor heating panel in which a heating element and a heat insulating material surrounding the latent heat storage material and the heating element are stored, wherein the floor panel includes a substantially flat front plate and a back plate having projections and depressions. It is a hollow panel made of laminated metal plates,
On the upper surface of the back panel of the floor panel, a heat insulating material made of a foamable resin is laminated along the irregularities, and a latent heat storage material and a heating element are arranged in depressions along the irregularities on the heat insulating material, thereby forming a latent heat storage material. The material is formed so as to be in contact with the front panel of the floor panel.

That is, the present invention utilizes the internal space of a floor panel formed in a hollow shape and accommodates a latent heat storage material, a heating element, and a heat insulating material in this internal space, thereby providing a heat storage type floor heating panel. This is a further reduction in thickness. By forming irregularities on the back panel of the floor panel and laminating a heat insulating material along the irregularities, a recess insulated from the back panel of the floor panel is formed. Then, a latent heat storage material and a heating element are arranged in the depression, and the latent heat storage material is brought into contact with the front plate of the floor panel, so that the heat storage is transmitted only to the front plate side.

As the heating element in the present invention, a sheet heating element, a rod-shaped heating element, a linear heating element, or the like according to a known technique can be used. Also, as latent heat storage materials,
Inorganic salt hydrates such as sodium sulfate decahydrate, calcium chloride hexahydrate, sodium acetate 3
Organic salt hydrates such as water salts, organic substances such as paraffin and wax, and those obtained by adding a supercooling inhibitor, a solid-liquid separation inhibitor, and the like to these can be used. As the heat insulating material, a synthetic resin foam such as polyurethane or polystyrene, or a synthetic rubber foam is suitable.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a regenerative floor heating panel 11 according to a first embodiment of the present invention.

The regenerative floor heating panel 11 includes a floor panel 21 forming a floor surface or a floor finishing base surface, a latent heat storage material 51 superposed on the lower side of the floor panel 21, and the latent heat storage material 51. An electric heating element 41 to be heated, and a casing 31 surrounding the latent heat storage material 51 and the heating element 41
And The regenerative floor heating panel 11 is formed in a substantially square shape in a plan view, and is laid at four corners of the floor slab 9 via bolt legs 8 whose height can be adjusted so as to provide a space for wiring. You.

The floor panel 21 is a hollow panel manufactured by press-forming a metal plate such as a hot-dip galvanized steel plate, and is formed by laminating a flat front plate 211 and an uneven back plate 212. ing. The unevenness of the back plate 212 is formed, for example, by arranging a plurality of substantially hemispherical projections 213 stamped on the upper surface side of the back plate 212 in the vertical and horizontal directions of the floor panel 21 as shown in the figure. In this example,
The top of the convex portion 213 of the back plate 212 is brought into contact with the front plate 211, and the top plate 211 and the back plate 212 are punched downward at the position of the top, and caulked, so that the top plate 211 and the back plate 2 are formed.
12 is press-bonded. Thereby, the floor panel 21
, An airtight air layer A1 is formed. However, the joining between the front plate 211 and the back plate 212 can be performed by other means such as spot welding.

The casing 31 is a resin molded product made of a heat insulating material such as urethane foam, for example, and has a plane shape smaller than the floor panel 21 by one turn. A substantially dish-shaped recess 312 is formed on the upper surface of the casing 31 except for four peripheral side edges 311, and the heating element 41 and the latent heat storage material 51 are accommodated in the recess 312.

The heating element 41 is, for example, a planar heater of about 50 W, which is laid on the bottom surface of the concave portion 312 of the casing 31. A power supply cable (not shown) is connected to the heating element 41, and the cable is connected to a main cable wired in a space below the regenerative floor heating panel 11 via a connector or the like.

The latent heat storage material 51 is obtained by enclosing sodium sulfate decahydrate in a bag-shaped container made of, for example, an aluminum vapor-deposited sheet. The heating element 41 may be configured such that a container for enclosing the latent heat storage material 51 is doubled, and the heating element 41 is integrally sealed with the latent heat storage material 51 in the container.

The casing 31 has four side edges 311 abutting against the back plate 212 of the floor panel 21 and is joined to the floor panel 21 with an adhesive or screws. Then, in a state of being joined to the floor panel 21, the surface of the container of the latent heat storage material 51 comes into contact with the back plate 212 of the floor panel 21 so as to be pressed slightly, and the floor panel 2 is contacted through this contact portion.
1 to transfer heat storage.

According to the regenerative floor heating panel 11 configured as described above, the air layer A 1 is provided between the front plate 211 and the back plate 212 of the floor panel 21 and below the projection 213.
Since A2 is formed and these air layers A1 and A2 exhibit a certain heat insulating effect, the heat stored in the latent heat storage material 51 is transferred from the contact portion between the latent heat storage material 51 and the back plate 212 to the front plate. Heat is gradually radiated into the room through the contact portion between the 211 and the back plate 212. The heat radiation speed can be appropriately adjusted by, for example, adjusting the contact area between the latent heat storage material 51 and the floor panel 21 at the design stage.

Also, since the back plate 212 of the floor panel 21 is formed with irregularities, it is possible to secure a practically sufficient level of strength and rigidity of the floor panel 21. Therefore, the weight of the floor panel 21 can be easily reduced. Specifically, in the above embodiment, the floor panel 21 has a plane dimension of 500 mm square, and the thickness of the hot-dip galvanized steel sheet forming the front plate 211 and the back plate 212 is 1.4.
mm, a strength is obtained such that the deflection is about 1.5 mm or less with respect to a centralized load of 300 kgf. And even in that case, the weight of the floor panel 21 is about 5 to 6 kg, which can realize a weight reduction of 3 to 4 kg as compared with a calcium silicate plate (about 9 kg) having the same strength. Furthermore, since the casing 31 does not have the outer shell made of a metal plate as in the related art, the weight can be 1 kg or less. Therefore, the total weight of the regenerative floor heating panel 11 per sheet is suppressed to about 9 to 10 kg, and it is possible to realize a weight reduction of about 40% as compared with the conventional case.

FIG. 3 shows a regenerative floor heating panel 12 according to a second embodiment of the present invention.

The regenerative floor heating panel 12 is provided with the first
The floor panel 21 of the regenerative floor heating panel 11 according to the embodiment of the present invention is configured such that the front side is substantially flat, and
21 is replaced with a floor panel 22 made of a metal plate on which 21 is formed. The floor panel 22 is formed, for example, by die-casting of an aluminum alloy, and has rib-shaped projections 2.
21 are formed in a lattice or radial pattern on the back side. Also with the floor panel 22 like this, similarly to the regenerative floor heating panel 11 according to the first embodiment, the heat release speed is increased by adjusting the contact area between the rib-shaped protrusion 221 and the latent heat storage material 51. Can be appropriately adjusted. Further, by appropriately arranging the rib-shaped projections 221, it is possible to realize the weight reduction of the floor panel 22 itself while securing the strength and rigidity thereof.

FIG. 4 shows a regenerative floor heating panel 13 according to a third embodiment of the present invention.

The regenerative floor heating panel 13 is provided with the first
The casing 31 of the regenerative floor heating panel 11 according to the embodiment is formed to be slightly thinner to form a casing 33, and the bottom surface and four side faces thereof are covered with a thin plate 331 made of metal or resin. As described above, since the hollow floor panel 21 itself exhibits sufficient strength and rigidity as a floor material, the thin plate 331 includes, for example, a hot-dip galvanized steel plate having a plate thickness of about 0.4 mm, ABS resin, or the like. Hard resin can be used. Therefore, the weight increase by covering the casing 33 with the thin plate 331 is specifically suppressed to about 1 kg or less. Thereby, the strength of the casing 33 can be secured within a range that does not impair the effect of weight reduction, and the inside of the casing 33 can be protected from impact or the like during transportation or construction. Further, the heat insulating material is made thinner by the amount that can reinforce the casing 33, and the regenerative floor heating panel 1
3 can be further reduced in thickness.

FIGS. 5 and 6 show a regenerative floor heating panel 14 according to a fourth embodiment of the present invention.

The regenerative floor heating panel 14 is provided with the third
The casing 33 of the regenerative floor heating panel 13 according to the embodiment is replaced with a casing 34 formed of a box-shaped container formed of a hard resin such as ABS resin, and a latent heat storage material 51 and a heating element 41 are provided inside the casing 34. It was housed.

The casing 34 has an open top surface as shown in FIG. 6, and has a flat bottom plate 341 having a flat back surface, and side walls 34 raised on four sides of the bottom plate 341.
2. a flange 343 formed at the upper edge of the side wall 342;
Four inner walls 34 raised inside the side walls 342
4 and so on. And the bottom plate 341 and the inner wall 3 of the four surfaces
The space surrounded by 44 serves as a housing portion for the latent heat storage material 51 and the heating element 41. Inside the side wall 342, the casing 34 is attached to the floor panel 21 at about two places on each side.
A screw hole forming portion 345 for screwing is provided on the back surface of the screw. Reinforcing ribs 346 are formed between the side wall 342 of each surface and the inner wall 344 opposed thereto. On the upper surface of the bottom plate 341 surrounded by the inner wall 344,
For example, a plurality of bottom ribs 347 arranged in a lattice shape and a plurality of annular ribs 348 for locking the coil spring 61 are formed. The reference numeral 349 in FIG.
1 shows a space for accommodating a control device unit (not shown) that controls energization of the power supply 1.

Then, as shown in FIG.
A support plate 62 made of a wood plywood, a resin plate, or the like is placed on a bottom plate 341 surrounded by a via a coil spring 61 locked by an annular rib 348, and the latent heat storage material 51 is placed on the support plate 62. And a heating element 41 are placed. For this reason,
An upward urging force of the coil spring 61 is uniformly applied to the latent heat storage material 51 via the support plate 62, and the latent heat storage material 51
Is pressed against the entire lower surface of the floor panel 21. Thereby, the latent heat storage material 51 and the floor panel 2
1 is secured, and heat storage is transmitted to the floor panel 21 via the contact area.

According to this configuration, the casing 34 is similar to the casing 33 according to the third embodiment,
An outer shell protects the internal latent heat storage material 51 and the heating element 41 from impact or the like. In addition, since the support plate 62 is interposed between the bottom plate 341 of the casing 34 and the latent heat storage material 51 or the heating element 41, the support plate 62 is formed of a wood plywood or a resin plate having a low thermal conductivity. , A certain heat insulating effect is obtained. Further, the air layer A3 formed between the bottom plate 341 and the support plate 62 also exerts a heat insulating effect. for that reason,
The regenerative floor heating panels 11, 1 shown in the above embodiments
By omitting the heat insulating materials (casings 31, 33) in 2, 13, the overall thickness can be further reduced. The same effect can be obtained even when the hollow floor panel 21 is replaced with the floor panel 22 having the rib-shaped projections 221 on the back surface shown in FIG.

The material of the casing 33 is preferably a hard resin such as an ABS resin from the viewpoint of strength, weight, thermal conductivity and the like. Further, as the material of the support plate 62, a wood-based plate material such as veneer core plywood or particle board can be suitably used.

Further, a plate-like heat insulating material (not shown) made of a soft resin such as urethane foam is sandwiched between the air layer A3 formed between the bottom plate 341 and the support plate 62, and further heat insulating. It is also possible to increase the quality. In this case, the heat insulating material depends on the material characteristics of the coil spring 61.
On the bottom plate 341 of the casing 33 by cutting out the coil spring 61 and laying it on the bottom plate 341 of the casing 33.

The urging means for pressing the latent heat storage material 51 against the floor panel 21 (or 22) may be constituted by using a leaf spring or another known elastic body in addition to the coil spring 61. Can be.

FIG. 7 shows a regenerative floor heating panel 15 according to a fifth embodiment of the present invention.

The heat storage type floor heating panel 15 has a latent heat storage material 55, a heating element 45 and a heat insulating material 35 housed inside a hollow floor panel 25. The floor panel 25 includes a substantially flat front plate 251 formed by press-forming a hot-dip galvanized steel plate or the like, and a back plate 25 having unevenness.
2 are laminated. The unevenness of the back plate 252 is, for example, a depression 25 having a semicircular, U-shaped, or inverted trapezoidal cross section.
3 is provided by providing a plurality of portions 3 vertically and horizontally.
When the back panel 51 and the back plate 252 are stacked, an inner space slightly larger than the floor panel 21 according to the first embodiment is formed.

A heat insulating material 35 made of a foamable resin is laminated on the upper surface of the back plate 252 along irregularities, and a latent heat storage material 55 is provided in each recess 253 of the heat insulating material 35.
And a heating element 45. The latent heat storage material 55 is a material in which, for example, paraffin is filled in a bag-like container together with the heating element 45. The container may be appropriately insulated by, for example, stacking two layers of finely uneven aluminum-deposited sheets. For example, a material with a property can be used. The latent heat storage material 55 is insulated from the back plate 252 of the floor panel 25 while being insulated from the back plate 252.
1 is brought into contact with an appropriate area, so that heat storage can be directly transmitted to the front plate 251.

According to the regenerative floor heating panel 15, the latent heat storage material 55, the heating element 45, and the heat insulating material 35 are accommodated in the floor panel 25, thereby providing the first to fourth embodiments. As in the case of the regenerative floor heating panels 11 to 14, it is possible to realize a significant reduction in weight, and it is possible to further reduce the thickness of the regenerative floor heating panel 15. Reducing the thickness of the regenerative floor heating panel 15 improves transportability and workability, and also greatly contributes to expansion of the laid indoor space and the space under the floor.

[0045]

According to the regenerative floor heating panel according to the first to sixth aspects of the present invention, the strength and rigidity of the floor panel itself are secured while the back surface of the metal plate floor panel is a non-flat surface.
Floor panels can be reduced in weight. At the same time, it is also possible to adjust the heat release rate appropriately by forming an air layer with heat insulation effect between the surface of the floor panel and the latent heat storage material and limiting the contact area between the floor panel and the latent heat storage material become. Also, as for the casing, a heat insulating material made of a foamable resin is used as an outer shell, and a latent heat storage material and a heating element are accommodated in a substantially dish-shaped recess formed on the upper surface of the heat insulating material,
By housing the latent heat storage material and the heating element in a resin box-shaped container having an open upper surface, the casing can be significantly reduced in weight.

Further, according to the regenerative floor heating panel according to the seventh aspect of the present invention, a latent heat storage material, a heating element, and a heat insulating material are provided in this internal space by utilizing the internal space of the hollow floor panel. By accommodating the materials, it is possible to further reduce the thickness and weight of the regenerative floor heating panel.

[Brief description of the drawings]

FIG. 1 is a partial sectional view showing a first embodiment of a regenerative floor heating panel according to the present invention.

FIG. 2 is a bottom view of a floor panel of the regenerative floor heating panel.

FIG. 3 is a partial sectional view showing a second embodiment of the regenerative floor heating panel of the present invention.

FIG. 4 is a partial sectional view showing a third embodiment of a regenerative floor heating panel according to the present invention.

FIG. 5 is a partial sectional view showing a fourth embodiment of a regenerative floor heating panel according to the present invention.

6 is a perspective view of a casing in the regenerative floor heating panel shown in FIG.

FIG. 7 is a partial sectional view showing a fifth embodiment of the regenerative floor heating panel of the present invention.

FIG. 8 is a partial sectional view showing a configuration of a conventional regenerative floor heating panel.

[Explanation of symbols]

 11, 12, 13, 14, 15 Thermal storage type floor heating panel 21, 22, 25 Floor panel 211, 251 Top plate 212, 252 Back plate 221 Rib-shaped projection 253 Depression 31, 33, 34 Casing 312 Depression 331 Metal thin plate 35 Insulation material 41,45 Heating element 51,55 Latent heat storage material 61 Coil spring (biasing means) 62 Support plate

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) F24D 19/06 F24D 19/06 B

Claims (7)

[Claims] 1. A floor panel forming a floor surface or a floor finishing base surface, a latent heat storage material polymerized below the floor panel, an electric heating element for heating the latent heat storage material, and a latent heat A heat storage type floor heating panel comprising: a heat storage material and a casing surrounding a heating element, wherein the floor panel is made of a metal plate formed by laminating a substantially flat top plate and a back plate having irregularities. Wherein the casing has a substantially dish-shaped concave portion formed on the upper surface of a heat insulating material made of a foamable resin, and the latent heat storage material and the heating element are accommodated in the concave portion. A regenerative floor heating panel, characterized in that: 2. A floor panel forming a floor surface or a floor finishing ground surface, a latent heat storage material polymerized below the floor panel, an electric heating element for heating the latent heat storage material, and a latent heat A heat storage type floor heating panel comprising: a heat storage material and a casing surrounding a heating element, wherein the floor panel is a metal plate panel having a substantially flat front surface and a rib-shaped protrusion formed on a rear surface. The casing is characterized in that a substantially dish-shaped concave portion is formed on the upper surface of a heat insulating material made of a foamable resin, and the latent heat storage material and the heating element are accommodated in the concave portion. Regenerative floor heating panel. 3. The regenerative floor heating panel according to claim 1, wherein the bottom and side surfaces of the casing are covered with a thin metal plate or a thin resin plate. 4. A floor panel for forming a floor surface or a floor finishing ground surface, a latent heat storage material superposed on the floor panel, an electric heating element for heating the latent heat storage material, and a latent heat storage element. A heat storage type floor heating panel comprising: a heat storage material and a casing surrounding a heating element, wherein the floor panel is made of a metal plate formed by laminating a substantially flat top plate and a back plate having irregularities. Wherein the casing contains the latent heat storage material and the heating element via a layer of air or a heat insulating material in a resin box-shaped container having an open upper surface. A regenerative floor heating panel characterized by the following. 5. A floor panel for forming a floor surface or a floor finishing base surface, a latent heat storage material polymerized below the floor panel, an electric heating element for heating the latent heat storage material, and a latent heat A heat storage type floor heating panel comprising: a heat storage material and a casing surrounding a heating element, wherein the floor panel is a metal plate panel having a substantially flat front surface and a rib-shaped protrusion formed on a rear surface. Wherein the casing is configured to house the latent heat storage material and the heating element via a layer of air or a heat insulating material in a resin box-shaped container having an open upper surface. Heat storage floor heating panel. 6. An urging means made of an elastic body and a supporting plate supported by the urging means are provided in a box-shaped container constituting a casing, and the latent heat storage material and the heating element are provided on the supporting plate. The regenerative floor heating panel according to claim 4, wherein the panel is formed so as to be placed on the floor panel and pressed against the back surface of the floor panel. 7. A latent heat storage material, an electric heating element for heating the latent heat storage material, and the latent heat storage material and the heating element are surrounded inside a floor panel forming a floor surface or a floor finishing base surface. A heat storage floor heating panel in which a heat insulating material is accommodated, wherein the floor panel is a hollow panel made of a metal plate formed by laminating a substantially flat top plate and a back plate formed with irregularities, On the upper surface of the back panel of the floor panel, a heat insulating material made of a foamable resin is laminated along the irregularities, and a latent heat storage material and a heating element are arranged in depressions along the irregularities on the heat insulating material, thereby forming a latent heat storage material. A regenerative floor heating panel formed so that a material and a front panel of a floor panel are in contact with each other.