JP2007163068A - Heating panel for bathroom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating panel for a bathroom that ensures high heating efficiency, high durability and safety. <P>SOLUTION: The heating panel for a bathroom comprises an insulating board 1 of expanded polypropylene to be secured to a base, hot water pipes 5 laid on the insulating board 1, a first adhesive layer 12 applied to the surface for adhesion to the expanded polypropylene, a second adhesive layer 13 applied on the first adhesive layer 12, and a surface material 2 attached on the second adhesive layer 13. The second adhesive layer 13 is formed of an elastic adhesive that can adhere to the surface material 2 and the first adhesive layer 13. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a bathroom heating panel used for heating a bathroom.

Conventionally, there is a heating panel that uses hot water to heat a room.
In this heating panel, hot water pipes that pass hot water supplied from a hot water source are arranged in a panel and are provided under the surface material of the floor and walls, and the hot water that passes through the hot water pipes warms the floor and walls. It is to heat the room by exchanging heat with air.

However, if the above-mentioned hot water pipe is laid directly on the floor or wall base material, heat will escape to the base material side, resulting in poor heating efficiency. It is preferable to interpose. Therefore, a heating panel in which a hot water pipe is laid on the heat insulating plate is considered, and as the heat insulating plate, it is considered to use urethane foam that is light and easy to process, or polystyrene foam (Patent Document 1, 2).
JP 2001-124353 A JP 2002-115989 A

When the above heating panel is used for bathroom heating, the base material of the bathroom floor or wall must be formed of a waterproof material, for example, mortar. When a hot water pipe is laid directly on such a base material, heat easily escapes, so that a heat insulating plate is particularly required for a heating panel for a bathroom.
However, urethane foam generally used as a heat insulating plate is not suitable for use in a bathroom with a lot of moisture because it hydrolyzes and decreases its strength.
In addition, since polystyrene is poor in resilience, it is dented when used on a floor with a load. In particular, in a bathroom, unlike a tatami mat or the like, since a hard member such as a tile is used as a floor surface material, the dent of the heat insulating plate may appear as a deformation of the floor surface.

  Furthermore, since urethane foam and polystyrene have poor chemical resistance, there is a risk of being violated by cleaning agents such as shampoos. In addition, since urethane foam and styrene foam generally use a volatile organic compound as a foaming agent, vapors of organic compounds such as formaldehyde (hereinafter referred to as VOC (Volatile Organic Compound)) may be generated. In particular, in a bathroom where the temperature is high, VOC is likely to occur, and since the bathroom is also hermetically sealed, there is a concern that VOC may harm human health. That is, the current heating panel using a foamed resin as a heat insulating plate cannot be used as it is for a bathroom.

  On the other hand, foamed polypropylene does not have the drawbacks of the above foamed urethane and polystyrene foam. Then, it is possible to form the heating panel for bathrooms using the heat insulation board made from a polypropylene foam. However, since polypropylene cannot be bonded with a normal adhesive material, a surface material such as a tile cannot be bonded to the surface. In addition, the heat insulating plate cannot be fixed to the base material using an adhesive.

That is, it has been considered difficult to use foamed polypropylene as the heat insulating plate of the heating panel. For this reason, a heating panel for bathroom that has high heating efficiency, excellent durability, and safety has not been made.
An object of the present invention is to provide a bathroom heating panel having good heating efficiency, excellent durability, and safety.

According to a first aspect of the present invention, there is provided a heat insulating plate made of polypropylene that is fixed to a base material, a hot water pipe laid on the heat insulating plate, a first adhesive layer that is provided on the surface and can be bonded to the foamed polypropylene, and the first It is composed of a second adhesive layer provided on the adhesive layer and a surface material provided on the second adhesive layer, and the second adhesive layer is an elastic adhesive that can adhere to the surface material and the first adhesive layer. It is characterized in that it is constructed.
The surface material includes not only ceramic tiles but also various materials such as resin.

The second invention is based on the first invention, and the first adhesive layer is composed of a heat-resistant rubber-based adhesive having an alicyclic hydrocarbon as a main solvent, such as a ketone or an ester. 2 The adhesive layer is characterized in that it is composed of an elastic adhesive mainly composed of modified silicone and epoxy resin.
3rd invention presupposes the said 1st or 2nd invention, and is characterized by providing the said 1st contact bonding layer after previously removing the skin layer formed in the heat insulating board surface made from a polypropylene foam.

  The fourth aspect of the invention relates to a heat insulating plate made of foamed polypropylene to be fixed to the base material, a hot water pipe laid on the heat insulating plate, a retainer for aligning the hot water pipe on the heat insulating plate, and this retainer And a through hole provided in the heat insulating material, and a surface opposite to the retainer across the heat insulating plate, and installed corresponding to the through hole, and provided with a fixing member, the retainer and the fixing member Is characterized in that they are connected via the through hole.

  According to a fifth aspect of the present invention, there is provided a foamed polypropylene heat insulating plate fixed to the base material, a hot water pipe laid on the heat insulating plate, and a plurality of through holes penetrating in the thickness direction of the heat insulating plate. It is characterized in that an adhesive that adheres to the material is filled and this adhesive is adhered to the base material.

According to the first to fifth inventions, it is possible to realize a safe bathroom heating panel that has high heating efficiency, durability, and no VOC.
In particular, according to the first to third inventions, the surface material can be easily and reliably bonded to the heat insulating material.
Moreover, according to the 4th, 5th invention, the heating panel for bathrooms can be fixed to a base material easily and reliably.

1 to 5 show a first embodiment of the present invention.
This bathroom heating panel P1 is provided with a pipe unit u on a heat insulating plate 1 made of foamed polypropylene, and further provided with a tile 2 as a surface material of the present invention.
The pipe unit u includes a supply-side main pipe 3, a return-side main pipe 4, and a plurality of hot water pipes 5 communicating with the main pipes 3 and 4.
The supply-side main pipe 3 is provided with a fluid supply port 6 at one end, and the fluid supply port 6 is connected to a discharge port of a hot water generator (not shown) via a supply channel. Further, the other end of the supply side main pipe 3 opposite to the fluid supply port 6 is closed so that the hot water does not leak.

On the other hand, the return side main pipe 4 is closed at one end so as not to leak, and a fluid discharge port 7 is provided at the other end. In other words, the fluid supply port 6 and the fluid discharge port 7 are provided on a diagonal line in the entire pipe unit u. The fluid discharge port 7 is connected to a recovery port of the hot water generator via a return channel (not shown).
The hot water supplied from the supply side main pipe 3 exchanges heat with the hot water pipe 5 and returns to the hot water generator via the return side main pipe 4.
As described above, in the course of the flow path from the supply-side main pipe 3 through the hot water pipe 5 and out of the fluid discharge port 7, the portion provided with the hot water pipe 5 warms the tile 2 and functions as a heating range.

In order to improve the heat exchange rate in such a heating panel, it is advantageous to increase the surface area of the hot water pipe 5 with respect to a predetermined flow rate. Therefore, the diameter of the hot water pipe 5 is reduced to increase the number of the pipes, but in order to reduce the surface temperature distribution by aligning the thin hot water pipes 5 at predetermined intervals in this way, Retainers 8 and 8 are used.
In addition, although not shown in figure, it replaces with the said hot water pipe 5, and the one hot water pipe may be arrange | positioned by repeating the linear part and the U-turn part alternately, and meandering.

The retainer 8 is configured as shown in the front view of FIG. 2 and the cross-sectional view of FIG.
As shown in FIG. 2, in the retainer 8, the first and second crosspieces 9 and 10 are parallel to each other and the intervals are maintained by a plurality of connecting members 11. A plurality of pitch holding grooves A and B are formed at equal intervals in each of the crosspieces 9 and 10, respectively. Therefore, the pitch holding grooves A and B are opposed to each other.
As shown in FIG. 3, the cross-sectional shapes of these pitch holding grooves A and B are formed by arcs that match the outer diameter d of the hot water pipe 5, but the opening width s is made smaller than the diameter d. Yes. Therefore, when the hot water pipe 5 is pushed into the pitch holding grooves A and B, the hot water pipe 5 can be fixed.

  As described above, the pipe unit u in which the hot water pipes 5 are aligned is laid on the heat insulating plate 1 by using the retainers 8, 8. As shown in FIGS. 4 and 5, the heat insulating plate 1 Are formed with grooves 1a and 1b for fitting the supply-side main pipe 3 and return-side main pipe 4, grooves 1c for fitting the hot water pipes 5, and grooves 1d for fitting the retainers 8. Yes. And the said pipe unit u is installed on the heat insulation board 1 by each inserting the corresponding member in each groove | channel 1a, 1b, 1c, 1d.

  In the first embodiment, since the grooves 1c for fitting the hot water pipes 5 one by one are formed in the heat insulating plate 1, the distance between the hot water pipes 5 can be maintained by the grooves 1c. Since the hot water pipes 5 can be aligned by the grooves 1c in this way, the retainer 8 may be omitted. However, if the pipe unit u in which the hot water pipes 5 are aligned in advance using the retainer 8 as described above, it is easier to lay the pipe on the heat insulating plate 1. Moreover, if the retainer 8 is used, it is not necessary to form the groove | channel 1c in which each hot water pipe 5 fits in the heat insulation board 1 exactly. For example, a groove that can accommodate two or three hot water pipes 5 may be provided.

When the pipe unit u is installed on the heat insulating plate 1 as described above, an adhesive that can be bonded to the heat insulating plate 1 is applied to the surface of the pipe unit u to form the first adhesive layer 12, and the second adhesive is further formed thereon. Layer 13 is formed.
And the tile 2 as a surface material is adhere | attached on the 2nd contact bonding layer 13, and the heating panel P1 is completed (refer FIG. 5). The heating panel P1 is fixed to a floor or wall base material in the bathroom and used as a bathroom heating panel.

The first adhesive layer 12 is an adhesive that can be bonded to the heat insulating plate 1, that is, a material that can be bonded to foamed polypropylene. As explained in the above-mentioned section of the prior art, there are few types of adhesives that can be bonded to polypropylene, but heat-resistant rubber-based adhesives that use alicyclic hydrocarbons as the main solvent, such as ketones and esters, are first bonded. Can be used as a layer.
The second adhesive layer 13 provided on the first adhesive layer 12 is configured by applying an elastic adhesive that can be bonded to the first adhesive layer 12 and can be bonded to the tile 2 provided on the outermost surface. As the adhesive constituting the second adhesive layer 13, for example, an elastic adhesive mainly composed of modified silicone and epoxy resin can be used.

The first adhesive layer 12 is a material that can slightly melt the surface of polypropylene and adhere to the surface of the heat insulating plate 1, but it is almost impossible to adhere the tile 2. In addition, the thickness of the 1st contact bonding layer 12 is a very thin layer compared with a 2nd contact bonding layer.
On the other hand, the adhesive constituting the second adhesive layer 13 is an adhesive that adheres to the tile 2 that is the surface material, but does not adhere to the foamed polypropylene. However, the second adhesive layer 13 can be bonded to the first adhesive layer 12. Therefore, a second adhesive layer 13 made of an elastic adhesive material that can be bonded to the first adhesive layer 12 and can also be bonded to the tile 2 is provided on the first adhesive layer 12, and the first and second adhesive layers are provided. The tile 2 is fixed on the foamed polypropylene via 12 and 13.

In addition, since the second adhesive layer 12 is made of an elastic adhesive, even if the coefficient of thermal expansion differs due to the difference in material between the resin pipe unit u and the heat insulating plate 1 and the tile 2 such as ceramics, Since the elastic adhesive can absorb the shift, the tile 2 is not peeled off.
In addition, when a skin layer is formed on the foamed polypropylene plate member forming the heat insulating plate 1, the surface from which the skin layer has been removed by cutting or sanding the surface is the surface of the heat insulating plate 1. It is preferable that Without the skin layer, irregularities are formed on the surface of the heat insulating plate 1, and the first adhesive layer 12 bites into the irregularities and can be bonded more firmly.

  Since the bathroom heating panel P1 of the first embodiment as described above uses foamed polypropylene as a heat insulating plate, it has excellent durability and chemical resistance as well as a heat insulating effect. In addition, it is a safe bathroom heating panel without the occurrence of VOC.

In the second embodiment shown in FIGS. 6 to 9, the retainer 20 shown in FIGS. 6 and 7 is used instead of the retainer 8 of the first embodiment, and the fixing member 16 shown in FIGS. 8 and 9 is used. This is the heating panel P2. In addition, the same code | symbol is used for the component similar to 1st Embodiment, and description about each element is abbreviate | omitted.
As shown in FIGS. 6 and 7, the retainer 20 used in the second embodiment is hung from the first crosspiece 9 to the second crosspiece 10 between appropriate pitch holding grooves A and A, and B and B. A fixing portion connecting member 14 is provided so as to pass. As shown in FIG. 7, the fixed portion connecting member 14 is a member thicker than the connecting member 11, and has a stop hole 15 at the center. Here, the connecting member 14 for the fixing portion is formed integrally with the adjacent connecting member 11, but they may be separated. And as long as this fixing | fixed part connection member 14 is between pitch holding grooves, you may provide between any pitch holding grooves.
The retainer 20 is the same as the retainer 8 of the first embodiment shown in FIGS. 2 and 3 except for the fixing portion connecting member 14.

Further, as shown in FIG. 9, the fixing member 16 is a disk-shaped member, and a rod-shaped connecting member 17 is integrated in the center. The fixing member 16 is formed of a resin such as vinyl chloride or a metal such as stainless steel.
Further, in the second embodiment, a through hole 1 e is formed in the heat insulating plate 1 at a position corresponding to the stop hole 15 provided in the retainer 20.

  And also in this 2nd Embodiment, after installing the pipe unit u on the heat insulation board 1, providing the 1st, 2nd contact bonding layers 12 and 13 on the surface, the point which adhere | attaches the tile 2 as a surface material is the point. This is the same as in the first embodiment. However, in this embodiment, the fixing member 16 is disposed on the back surface side of the heat insulating plate 1 and at a location corresponding to the through hole 1e. Then, the connecting member 17 connected to the fixing member 16 is passed through the through hole 1e, and the tip thereof is inserted into the retaining hole 15 of the retainer 20 and fixed. The connecting member 17 and the retainer 20 may be fixed by any method. For example, the outer diameter of the distal end of the connecting member 17 is made slightly larger than the inner diameter of the stop hole 15 to press-fit both. May be fixed, or may be fixed with an adhesive or the like. If the material of the retainer 20 and the connecting member 17 is made easy to bond, both can be bonded with a general adhesive. Further, a screw can be screwed from the retaining hole 15 of the retainer 20 to the tip of the connecting member 17 to be coupled.

When the connecting member 17 is fixed to the retainer 20, the heat insulating plate 1 is sandwiched between the retainer 20 and the fixing member 16. If a resin or metal other than the olefin resin is used as the fixing member 16, it can be bonded to the base material 18 using a resin-based base adhesive 19 that can be bonded thereto. For example, the heating panel P2 can be fixed on a waterproof pan made of resin in a bathroom. It is also possible to adhere to the floor surface of a bathroom formed integrally with resin.
That is, the heat insulating plate 1 made of foamed polypropylene, which is difficult to fix to the base material with an adhesive, can be bonded to the base material via the fixing member 16.

Therefore, similarly to the first embodiment, the heating panel P2 of the second embodiment has little loss of thermal energy, is excellent in durability, is safe, and can be easily and reliably fixed to the base material.
In addition, in this 2nd Embodiment, although the fixing member 16 and the retainer 20 are connected via the connection member 17, it adheres to the through-hole 1e of the heat insulation board 1 without using the connection member 17, for example. It is also possible to connect the retainer 20 and the fixing member 16 by filling the material and using the filled adhesive.

  Unlike the second embodiment, the heating panel P3 of the third embodiment shown in FIGS. 10 and 11 is different from the second embodiment in that the fixing member 16 is not used. Therefore, the fixing member connecting member 14 of the retainer 20 shown in FIGS. 6 and 7 is unnecessary. Therefore, the same retainer 8 as in the first embodiment is used. Since the other configuration is the same as that of the second embodiment, the same reference numerals are used for the same components as those of the second embodiment, the description of the individual elements is omitted, and the parts different from the other embodiments described above. Only explained.

In FIG. 10, the tile 2 and the pipe unit u are partially removed, but as shown in FIG. 10, in the third embodiment, the heat insulating plate 1 has a plurality of holes penetrating in the thickness direction. A through hole 1f is formed. In addition, on the surface of the heat insulating plate 1, grooves 1a, 1b, 1c, and 1d for fitting the pipes 3, 4, 5 and the retainer 8 are formed in the same manner as in the first and second embodiments. .
Note that the arrangement and size of the through holes 1f are not limited to those shown in FIG.

And also in this 3rd Embodiment, after installing the pipe unit u on the heat insulation board 1, providing the 1st, 2nd contact bonding layers 12 and 13 on the surface, the point which adhere | attaches the tile 2 as a surface material is the point. This is the same as in the first embodiment. However, in the third embodiment, before the pipe unit u is installed on the surface of the heat insulating plate 1, the heat insulating plate 1 is fixed to the base material 18 as follows.
First, each of the through holes 1f of the heat insulating plate 1 is filled with a base adhesive 19 that can be bonded to the base 18 (see FIG. 11). For example, when the base material is concrete, mortar is poured as an adhesive, and when the base material is resin, a resin-based adhesive that adheres to the resin is brought into contact with the surface of the base material 18. Pour. Then, the base adhesive 19 is solidified in the through hole 1f.
Then, the pipe unit u is provided on the heat insulating plate 1, and the tile 2 is bonded to complete the heating panel P3.

As shown in FIG. 11, the heating panel P <b> 3 is fixed to the base material 18 by the base adhesive 19 filled in the through holes 1 f being bonded to the surface of the base material 18 and solidifying. That is, when the base adhesive 19 is bonded to the base material 18 and is solidified in the through hole, a cylinder integrated with the base adhesive 19 is formed on the surface of the base material 18. Since this column is inserted into the through hole 1 f of the heat insulating plate 1, the heating panel P <b> 3 does not move along the surface of the base material 18. As a result, the heating panel P3 is fixed to the base material 18.
The heating panel P3 of the third embodiment has little loss of heat energy, is excellent in durability and chemical resistance, is safe, and can be easily fixed to the base material.

  In addition, since the heat insulating plate 1 is made of foamed polypropylene, the adhesive that adheres thereto is limited, but the base adhesive 19 may be bonded to the base 18 and does not need to be bonded to the heat insulating plate 1. However, it is preferable that the base adhesive 19 has a small volume change when solidified. This is because if the volume of the through hole 1f shrinks when the through hole 1f is filled and solidified, a gap is formed between the through hole 1f and the base adhesive 19 and the heating panel P3 is rattled. Because there is also.

It is the top view which notched a part of heating panel of a 1st embodiment. It is a top view of the retainer of a 1st embodiment. It is the III-III sectional view taken on the line of FIG. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. It is a top view of the retainer of a 2nd embodiment. It is the VII-VII sectional view taken on the line of FIG. It is sectional drawing of the heating panel of 2nd Embodiment. It is a perspective view of the fixing member of 2nd Embodiment. It is the top view which notched a part of heating panel of 3rd Embodiment. It is the XI-XI sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat insulation board 2 Tile 5 Hot water pipe 8 Retainer 1e Through-hole 16 Fixing member 17 Connection member 18 Base material 19 Base adhesive 19 Retainer 1f Through-hole 14 Connection member for fixing part

Claims (5)

  A heat insulating plate made of expanded polypropylene to be fixed to the base material, a hot water pipe laid on the heat insulating plate, a first adhesive layer that can be bonded to the expanded polypropylene on the surface, and provided on the first adhesive layer A bathroom heating comprising a second adhesive layer and a surface material provided on the second adhesive layer, wherein the second adhesive layer is made of an elastic adhesive that can be bonded to the surface material and the first adhesive layer. panel.   The first adhesive layer is composed of a heat-resistant rubber-based adhesive whose main solvent is an alicyclic hydrocarbon such as a ketone or an ester, and the second adhesive layer is mainly composed of a modified silicone and an epoxy resin. The heating panel for a bathroom according to claim 1, wherein the heating panel is made of an elastic adhesive.   The heating panel for a bathroom according to claim 1 or 2, wherein the first adhesive layer is provided after removing a skin layer formed on the surface of a heat insulating plate made of expanded polypropylene in advance.   A heat insulating plate made of expanded polypropylene to be fixed to the base material, a hot water pipe laid on the heat insulating plate, a retainer for aligning the hot water pipe on the heat insulating plate, and a heat insulating material corresponding to the retainer. The retainer and the fixing member are provided on the surface opposite to the retainer with the heat insulating plate interposed therebetween, and provided with a fixing member. The retainer and the fixing member are interposed through the through hole. Connected bathroom heating panels.   An insulating material made of foamed polypropylene to be fixed to the base material, a hot water pipe laid on the heat insulating plate, and a plurality of through holes penetrating in the thickness direction of the heat insulating plate, and adhering to the base material in the through hole Heating panel for bathroom that fills and glues this adhesive to the base material.

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