JP2001304593A - Floor heating panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor heating panel having a light weight while holding a strength without bringing about a temperature unevenness. SOLUTION: The floor heating panel comprises a groove 3 recessed upward and provided on a lower surface of a plate-like heat insulation core material 2, piping 4 arranged on the groove 3 in which a heating medium flows, an upper surface plate 5 and a lower surface plate 6 made of metal respectively provided on an upper surface and a lower surface of the core material 2, and a heat transfer plate 7 fixedly contacted with the plate 6 and covering a side face and an upper surface of the piping 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor heating panel for heating a room by heating a floor surface.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a conventional floor heating panel. As shown in the figure, the floor heating panel 51 has a core 52 formed of a heat insulating member such as a foamed resin board, an insulation board, a plywood, and a particle board and having a groove 53 formed on an upper surface. A pipe 54 through which the medium flows is provided.

[0003] On the upper surface of the core member 52, a metal upper plate 55 which is a member for dissipating heat and serving as a strength member is attached.
A metal lower plate 56 is attached to the lower surface. The pipe 54 is provided with a heat transfer plate 57 for fixing to the upper surface plate 55, and transmits heat to the upper surface plate 55 via the heat transfer plate 57.

Further, a floor heating panel 61 as shown in FIG.
There was also. In the floor heating panel 61, a groove 64 for accommodating a pipe 63 through which a heat medium flows is formed on a lower surface of a wooden floor member 62 used as a floor finishing material, and a metal floor is formed on a lower surface of the wooden floor member 62. Bottom plate 65 is attached.

[0005]

However, in the floor heating panel 51 shown in FIG. 4, since the piping 54 is provided in contact with the upper plate 55, the temperature of the upper part of the piping 54 of the upper plate 55 becomes high, and the adjacent piping is heated. There was a problem that the temperature was relatively low between 54 and 54, causing temperature unevenness as a whole.

When a load is applied to the upper portion of the groove 53, the upper plate 55 is easily deformed.
Need to be thicker. Therefore, the weight of the entire floor heating panel 51 increases, and handling during construction is inconvenient.

In the floor heating panel 61 of FIG. 5, since the wooden floor member 62 is used as the core member, the heat of the pipe 63 is hardly transmitted in the horizontal direction, and the temperature unevenness occurs.

Further, since the pipe 63 is housed in the wooden floor member 62, the upper part of the pipe 63 becomes thin, and the portion is weak against the load, which may cause a crack. was there.

Accordingly, the present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a floor heating panel which is lightweight and does not generate temperature unevenness while maintaining strength.

[0010]

According to a first aspect of the present invention, there is provided a heat-insulating core material having a plate-shaped heat-insulating core, in which a lower groove is provided on a lower surface, and a pipe through which a heat medium flows is provided in the groove. A metal upper plate and a lower plate are provided on the upper and lower surfaces of the heat insulating core material, respectively, and a heat transfer plate is provided on the pipe so as to cover the side and upper surfaces thereof and to be fixed to the lower plate. It is.

According to the above configuration, since there is no groove in the upper surface of the heat insulating core material, the thickness of the upper surface plate can be reduced while maintaining strength, and the weight of the entire floor heating panel can be reduced. Further, since the pipe is provided in contact with the lower plate, the heat of the heat medium spreads laterally along the lower plate. However, since the core is a heat insulating material, conduction of heat to the upper surface is worse,
To that extent, heat is confined, and the temperature distribution near the lower surface material becomes uniform. After that, since the thickness of the core material is relatively thin, it is gradually transmitted to the upper plate. Therefore, it is possible to prevent the occurrence of temperature unevenness on the floor surface.

According to a second aspect of the present invention, the heat insulating core is provided with an open groove extending from the upper surface to the lower surface of the plate-like heat insulating core material, and a pipe through which a heat medium flows under the open groove. A lower plate made of metal is provided on the lower surface of the core material, a spacer for closing the upper portion of the open groove is provided above the pipe, and a metal upper plate is provided on the upper surface of the heat insulating core material.

Preferably, the pipe is a flat pipe.

Further, it is preferable that a heating wire is provided instead of the pipe.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a sectional view showing a first embodiment of a floor heating panel according to the present invention, and FIG. 2 is a sectional view showing a second embodiment of a floor heating panel according to the present invention. .

First, the configuration of the floor heating panel according to the first embodiment will be described.

As shown in FIG. 1, the floor heating panel 1 has a heat insulating material, for example, a plate-shaped heat insulating core material 2 made of foam resin board, insulation board, plywood, MDF, particle board, or the like. are doing.

On the lower surface of the heat insulating core material 2, a groove 3 which is depressed upward is formed. The groove 3 is a heat insulating core material 2 when viewed from a plane.
It is formed so as to meander throughout the whole. In the groove 3, a pipe 4 through which a heat medium flows is provided to meander along the groove 3. The pipe 4 is made of aluminum, copper, or the like having high thermal conductivity, and has a horizontally long and flat circular cross section.

A metal upper plate 5 is attached to the upper surface of the heat insulating core material 2 with an adhesive, and a metal lower plate 6 is also attached to the lower surface with an adhesive.

The pipe 4 is provided with a heat transfer plate 7 which covers the side and upper surfaces thereof and is fixed to the lower plate 6 in contact therewith. The heat transfer plate 7 is made of aluminum or copper having high thermal conductivity,
When viewed in the width direction, the center portion is depressed upward and curved along the side and top surfaces of the pipe 4, and both end portions extend outward along the lower surface plate 6, and have a substantially Ω-shaped cross section as a whole. Has become. The portions extending outward are the heat insulating core material 2 and the lower plate 6.
And is sandwiched between.

Although not shown, the floor heating panel 1
Is laid on top of a base plywood laid on a joist arranged at a predetermined pitch and a heat insulating material provided between the joists, and a wooden floor material is laid on a top of the floor heating panel 1 as a floor finishing material. Is done.

Next, the operation of the floor heating panel 1 having the above configuration will be described.

As described above, the grooves 3 are formed on the lower surface of the heat insulating core material 2.
Is formed, no depressed portion comes out on the upper surface of the heat insulating core material 2. Therefore, the thickness of the upper surface plate 5 can be reduced, and the weight of the entire floor heating panel 1 can be reduced. This facilitates handling such as transportation and installation during construction, facilitates adaptation to reforms, and enables application to ceilings and wall surfaces.

Further, by attaching the upper surface plate 5, the strength of the floor heating panel 1 with respect to the load can be maintained, and problems such as cracking and warping of the upper surface of the floor heating panel 1 can be prevented.

Further, since the pipe 4 is provided in contact with the lower plate 6, the heat of the heat medium spreads in the horizontal direction along the lower plate 6, and then is gradually conducted to the upper plate 5. Therefore, uniform heat is radiated on the floor surface, so that it is possible to prevent the occurrence of temperature unevenness.

FIG. 3 is a temperature distribution diagram of the floor when the floor heating panel 1 according to the present invention is used, and FIG. 6 is a temperature distribution diagram of the floor when the floor heating panel 51 of FIG. is there. Here, the temperature unevenness will be described with reference to these temperature distribution diagrams.

The temperature distribution diagrams of FIGS. 3 and 6 both show:
It is data of temperature unevenness when a wooden floor material having a thickness of 6 mm is laid on the upper part of the floor heating panel and hot water of 60 ° C. is flowed in the pipe. The piping once extends upward from the lower left of the floor heating panel in the figure, meanders over the entire panel, and extends to the lower right. Hot water flows in from the lower left.

First, a conventional floor heating panel 5 will be described with reference to FIG.
1 will be described. In FIG. 6, the black portion is the portion A where the floor surface temperature is 40 ° C., the white portion is the portion B where the floor surface temperature is 38 ° C., the hatched portion to the right is the portion C where the floor surface temperature is 35 ° C., and the upper right portion is The hatched portion indicates a portion D where the floor surface temperature is 31 ° C.

As shown in the figure, a portion A having a floor surface temperature of 40 ° C. is distributed along the upstream pipe 54, and the temperature gradually decreases between the adjacent pipes 54, and a lower portion is approximately 31.
° C. That is, the temperature difference between the highest temperature and the lowest temperature is 9 ° C., and large temperature unevenness occurs.

Next, the temperature unevenness when the floor heating panel 1 according to the present invention is used will be described with reference to FIG. In FIG. 3, the floor temperature is 38.
The part E at 4 ° C., the white part is the part F with the floor surface temperature of 37.5 ° C., the hatched upper right part is the part G with the floor surface temperature of 37 ° C., Indicates a portion H at 36.8 ° C.

As shown, the floor heating panel 1 also has a slightly higher floor surface temperature along the upstream pipe 4.
A portion E of 8.4 ° C. is distributed, and the temperature between adjacent pipes 4 gradually decreases. However, in the floor heating panel 1 of the present invention, even a portion far from the pipe 4
As shown in H, the floor temperature becomes 36.8 ° C.,
Compared with the conventional floor heating panel 51, the entire floor heating panel 1 can be heated over a wide range. Further, the temperature difference between the highest temperature and the lowest temperature is only 1.6 ° C., which is very small, and temperature unevenness hardly occurs.

Also, in this case, the upper surface heat radiation amount of 100 kcal / m ² h required for a general house can be sufficiently satisfied, and the floor surface temperature is not too high or too low, and the temperature is comfortable. Can be.

Next, the configuration of the floor heating panel according to the second embodiment will be described with reference to FIG.

As shown in FIG.
Is a plate-shaped heat insulating core material 12 made of a material having heat insulating properties.
have.

The heat insulating core 12 has an open groove 13 extending from the upper surface to the lower surface. The open groove 13 is formed to meander so as to extend over the entire heat insulating core material 12 when viewed from a plane. In the lower part of the open groove 13, FIG.
The pipe 14 through which the same heat medium flows as the pipe 4 of FIG.
It is arranged meandering along.

At the upper part of the pipe 14, a spacer 17 for closing the upper part of the open groove 13 is provided. The spacer 17
It is made of a material such as wood, paper, or foamed resin, and is placed on the upper surface of the pipe 14, and its upper end surface is flush with the upper surface of the heat insulating core 12.

An upper surface plate 15 made of metal is adhered to the upper surface of the heat insulating core material 12 with an adhesive, and a lower plate 16 made of metal is also adhered to the lower surface with an adhesive.

According to the floor heating panel 11, the groove can be processed from the upper side at the time of forming the groove when the panel is manufactured, so that it is not necessary to turn a large panel upside down, the manufacturing time is saved, and the manufacturing cost is reduced. Can be achieved. Further, the strength of the groove portion against the load can be improved.

In the first and second embodiments, a heat medium is supplied to the pipes 4 and 14 to supply heat. However, instead of the pipes 4 and 14, a heating wire is provided. May be used. According to this, a pump or the like for flowing the heat medium can be omitted, and the apparatus can be simplified.

[0041]

As described above, according to the present invention, an excellent effect that the weight of the floor heating panel can be reduced while maintaining the strength against the load of the floor heating panel and the occurrence of temperature unevenness can be prevented is exhibited.

[Brief description of the drawings]

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

FIG. 2 is a sectional view showing a second embodiment of the floor heating panel according to the present invention.

FIG. 3 is a temperature distribution diagram of a floor surface when the floor heating panel according to the present invention is used.

FIG. 4 is a sectional view showing a conventional floor heating panel.

FIG. 5 is a sectional view showing another conventional floor heating panel.

FIG. 6 is a temperature distribution diagram of a floor surface when the conventional floor heating panel of FIG. 4 is used.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 floor heating panel 2 heat insulating core material 3 groove 4 piping 5 upper surface plate 6 lower surface plate 7 heat transfer plate 11 floor heating panel 12 heat insulating core material 13 open groove 14 pipe 15 upper surface plate 16 lower surface plate 17 spacer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F24D 19/06 F24D 19/06 B (72) Inventor Yutaka Miyazawa 3550 Kida Yomachi, Tsuchiura City, Ibaraki Prefecture Hitachi Cable F term in Tsuchiura Factory Co., Ltd. (reference) 3L070 BD02 BD03 BD19 3L073 BB02 BB03 BB05 BB06 BD02

Claims (4)

[Claims] An indented groove is provided on a lower surface of a plate-shaped heat insulating core material, and a pipe through which a heat medium flows is provided in the groove. A metal upper plate is provided on upper and lower surfaces of the heat insulating core material. And a lower surface plate, and a heat transfer plate that covers the side and upper surfaces of the pipe and is fixed to the lower surface plate in contact therewith. 2. An insulating groove extending from the upper surface to the lower surface of a plate-shaped heat-insulating core material, a pipe through which a heat medium flows is provided below the open groove, and a metal-made lower surface of the heat-insulating core material. A floor heating panel, comprising: a lower plate, a spacer that covers an upper portion of the open groove, an upper portion of the pipe, and a metal upper plate on an upper surface of the heat insulating core. 3. The floor heating panel according to claim 1, wherein the pipe is a flat pipe. 4. The floor heating panel according to claim 1, wherein a heating wire is provided instead of the pipe.