JP5506429B2 - Floor heating panel - Google Patents

Description

  The present invention relates to a floor heating panel in which an electric sheet heating element is laminated on a base material provided with a hot water pipe.

  Conventionally, in a floor heating panel, a hot water pipe 65 is provided in a groove 63 formed on the upper surface of a base 61 as shown in FIGS. In addition, an electric sheet heating element 71 is laminated on the base member 61 via a radiator 68, and a finishing material 75 is laminated on the electric sheet heating element 71, and heating is turned on. In this case, the electric planar heating element 71 increases the temperature in a short time, and after the temperature of the hot water flowing through the hot water pipe 65 rises (for example, rises to about 50 ° C.), the electric planar heating element. There is a floor heating panel 80 that switches from 71 to heating with warm water with a low running cost. Both ends of the hot water pipe 65 are connected to a hot water boiler (not shown), so that hot water heated by the hot water boiler flows from one end of the hot water pipe 65 to the hot water pipe 65 and returns from the other end of the hot water pipe 65 to the hot water boiler. Has been.

  For example, a heat-resistant nonwoven fabric, a PET film, a polyester fabric, a cotton cloth, a glass cloth, etc. are coated with a semiconductor foil (PTC ink) on a honeycomb roll by printing with a copper foil electrode on the electric sheet heating element 71, and the thickness is about 0. A film heater finished in a flexible sheet of about 2 to 0.3 mm is used. Semiconductor ink (PTC ink) is an organic polymer semiconductor adsorbed on a crystalline or thermoplastic resin semiconductor. At low temperatures, conductive particles come into contact with each other to form a chain between electrodes, and the temperature rises. Then, the entire system is thermally expanded and partially has a self-temperature control function (PTC characteristic: Positive Temperature Coefficient) by partially breaking the chain of conductive particles. In other words, semiconductor ink causes heat to flow through a chain of conductive particles at a low temperature, and when the heat generation reaches a certain level, the chain of conductive particles is partially broken, so that a current flows automatically. Disappear. Therefore, the floor heating panel is heated quickly by the heat generated by the energized electric planar heating element in the initial stage of heating, and then the resistance of the electric planar heating element increases when the temperature of the hot water flowing through the hot water pipe rises. Is controlled so that no current flows automatically to the electric sheet heating element, and the heating is switched from heating by electricity to heating by hot water.

  However, the conventional floor heating panel 80 having both the hot water pipe and the electric sheet heating element is electrically connected to the entire upper surface of the base 61 on which the hot water pipe 65 is disposed via the radiator 68 made of aluminum foil. Since the sheet heating element 71 is laminated and the finishing material 75 is laminated on the electric sheet heating element 71, and the upper portion of the hot water pipe 65 is closed by the electric sheet heating element 71, Even when the temperature of the hot water pipe 65 is transmitted to the radiator 68 on the upper surface of the base member 61 during heating by the hot water flowing through the hot water pipe 65, the electric planar heating element 71 above the radiator 68 disturbs and efficiently finishes 75. Is not heated. In addition, since the electric planar heating element 71 is laminated on the base material 61 via the radiator 68 made of aluminum foil, the aluminum foil and the electric planar heating element are laminated when the electric planar heating element 71 is laminated. Even if the temperature of the hot water flowing through the hot water pipe 65 is sufficiently increased, the electric surface heating element 71 is caused by the air accumulation between the aluminum foil and the electric surface heating element 71. As a result, the switching from the electric planar heating element 71 to the heating by the hot water is delayed, and the effect of suppressing the running cost is reduced. Furthermore, when there is an air pocket between the aluminum foil and the electric sheet heating element, when walking on the upper surface of the finishing material, an abnormal noise is generated in the portion of the air pool between the aluminum foil and the electric sheet heating element, There is an uncomfortable problem.

  Further, as shown in FIG. 9, a floor heating panel 90 is proposed in which only the electric planar heating element 71A is laminated on the base material 61A while avoiding the hot water pipe 65A. However, in this case, the electric sheet heating element 71A does not exist above the hot water pipe 65A, and the area of the electric sheet heating element 71A is considerably reduced. There is a problem that the rise time of the floor heating panel 90 becomes longer and the rise time becomes longer. Further, in this floor heating panel 90 as well, since the electric sheet heating element 71A is laminated on the base material 61A via the radiator 68A made of aluminum foil, the temperature of the hot water pipe 65A is based on the temperature during heating with hot water. Even if it is transmitted to the aluminum foil (heat radiating body 68A) on the upper surface of the material 61A, there is a problem that the electric planar heating element 71A on the aluminum foil (heat radiating body 68A) interferes and the finishing material 75A is not efficiently heated. Furthermore, there is a problem that it takes time to work to stack the electric planar heating element 71A on the base 61A while avoiding the position of the hot water pipe 65A.

JP 2002-276958 A JP 2001-355863 A

  The present invention has been made in view of the above points, the rise time at the time of heating is short, can be efficiently heated with hot water, and even when a radiator such as an aluminum foil is provided, It is an object of the present invention to provide a floor heating panel that is less likely to cause air accumulation between an electric planar heating element and a heat radiating body, that is unlikely to generate abnormal noise due to the air accumulation during walking, and that can be efficiently heated.

The invention according to claim 1 is a substrate, a hot water pipe disposed in a groove formed on the upper surface of the substrate, an electric sheet heating element laminated on the substrate, and the electric sheet In the floor heating panel made of a finishing material laminated on a heating element, the electric planar heating element is formed with a plurality of through holes, the through holes being located above the hot water pipe, and the electric surface A heat radiating body is disposed between the heat generating body and the finishing material, and the heat radiating body is in contact with the hot water pipe at a through hole portion of the electric planar heat generating body .

According to a second aspect of the present invention, in the first aspect, the through hole of the electric planar heating element has a size that protrudes to both sides of a groove formed on the upper surface of the base material, and the radiator is the electric type. The heat radiator is adhered to the upper surface of the base material in the through hole portion of the electric planar heat generator that is bonded to the upper surface of the planar heat generator and protrudes from the groove.

  According to the first aspect of the present invention, since the electric planar heating element has a plurality of through holes and the through holes are located above the hot water pipe, the heat of the hot water flowing through the hot water pipe is electric. Since the finishing material can be efficiently heated through the through hole of the planar heating element, heating with warm water can be performed efficiently. In addition, compared to the provision of an electric sheet heating element that avoids hot water pipes, the area reduction of the electric sheet heating element laminated on the substrate can be suppressed, and the rise time during heating can be reduced It can be shortened by effective heating by the heating element. Furthermore, there is an effect that the electric sheet heating element can be easily laminated as compared with the case where the electric sheet heating element is laminated on the base material while avoiding the hot water pipe.

According to the first aspect of the present invention, the radiator disposed between the electric sheet heating element and the finishing material is in contact with the hot water pipe at the through hole portion of the sheet heating element. The heat of the tube is directly transmitted to the heat sink between the electric sheet heating element and the finishing material, and the finishing material can be heated with warm water without being blocked by the electric sheet heating element, further reducing running costs. it can. Furthermore, when laminating a radiator on the electric planar heating element, the air between the electrical planar heating element and the radiator is brought into close contact while being pushed out to the positions of a plurality of holes formed in the electric planar heating element. By laminating, the air can be stored in the groove of the base material at the position of the hole to eliminate the accumulation of air between the electric sheet heating element and the radiator, and the air when walking on the finishing material Abnormal noise due to accumulation can be made difficult to occur.

According to the second aspect of the present invention, since the heat radiator bonded to the upper surface of the electric sheet heating element is bonded to the upper surface of the base material in the through hole portion of the electric sheet heating element. The integration of the heat radiating element, the electric sheet heating element and the base material is ensured. Furthermore, since the radiator, the electrical planar heating element and the substrate can be integrated by adhering the radiator to the substrate at the through hole portion of the electrical planar heating element, the floor heating panel Assembling work is simplified.

It is a disassembled perspective view of the floor heating panel which concerns on one Example of this invention. It is sectional drawing of the floor heating panel in the Example. It is an expanded sectional view of the vicinity of the hot water pipe in FIG. It is a top view of the state which laminated | stacked the electric planar heating element on the base material in the Example. It is a disassembled perspective view of the floor heating panel of the example which does not provide a heat radiator. It is sectional drawing of the floor heating panel in the Example. It is a disassembled perspective view of the conventional floor heating panel. It is an expanded sectional view near the hot water pipe in the conventional floor heating panel. It is a disassembled perspective view of the other conventional floor heating panel.

  Hereinafter, the Example of the floor heating panel of this invention is described. As shown in FIGS. 1 to 3, a floor heating panel 10 according to an embodiment of the present invention includes a base material 11, a hot water pipe 21 disposed in a groove 17 on the upper surface 12 of the base material 11, The electric planar heating element 31 laminated on the base material 11, the radiator 41 laminated on the electric planar heating element 31, and the finishing material 51 laminated on the radiator 41. Further, the floor heating panel 10 may be used by connecting a plurality of floor heating panels 10 depending on the size of the room where the floor heating panel is installed, in addition to being used alone.

  The base material 11 is composed of a plate-like body having a predetermined thickness made of wood or the like, and the grooves 17 are continuously formed at a predetermined interval over substantially the entire area of the upper surface 12 of the base material. The groove 17 stores the hot water pipe 21, and the depth is set so that the outer surface upper end 22 of the hot water pipe 21 stored in the groove 17 is in contact with the upper surface 12 of the substrate 11.

  The hot water pipe 21 is made of a synthetic resin pipe or the like. One end of the hot water pipe 21 is connected to a hot water supply port (not shown) of the hot water boiler and the other end is heated water boiler so that hot water from the hot water boiler flows. Connected to a warm water return port (not shown). When a plurality of floor heating panels 10 are connected, the hot water pipes of the floor heating panels can be connected to each other so that the hot water of the hot water boiler flows through the hot water pipes of the connected floor heating panels. At the same time, one end of the hot water pipe disposed on one floor heating panel is configured to be connectable to the hot water supply port of the hot water boiler, and the other end is connected to the hot water return port of the hot water boiler.

  The electric sheet heating element 31 is not limited to a film heater having a self-temperature control function (PTC characteristic: Positive Temperature Coefficient) printed with semiconductor ink (PTC ink) together with the copper foil electrode, but also a sensor or a thermostat. However, the film heater having the self-temperature control function generates heat when energized, and the current is increased when the temperature rises to a certain temperature (for example, 50 ° C.). Since it does not flow and does not generate heat, it is preferable not only because it consumes less power and can be heated efficiently, but also because an external controller is not required for temperature control and costs can be reduced. The film heater has a thickness of about 0.2 to 0.3 mm.

  A plurality of through holes 33 are formed in the electric planar heating element 31. The through-hole 33 is provided so as to be positioned above the hot water pipe 21 provided in the base material 11. The through hole 33 enables the upper finishing material 51 to be efficiently heated by the heat of the hot water pipe 21 (heat of hot water), and along the hot water pipe 21 (that is, along the groove 17). ), Formed at predetermined intervals. The size of the through hole 33 is set such that the base material upper surfaces 13 and 13 on both sides of the groove 17 in which the hot water pipe 21 is accommodated are located in the through hole 33. That is, the width of the through hole 33 in the same width direction is made larger than the width of the groove 17, and the through hole 33 protrudes to both sides of the groove 17.

  The electric planar heating element 31 may be composed of a single sheet that can cover the upper surface of the base material 11, or may be composed of a plurality of sheets that are smaller than the base material 11. Good. FIG. 4 is a plan view showing a state where a plurality of electric planar heating elements 310 smaller than the base material 11 are stacked on the upper surface of the base material 11. An electric planar heating element 310 shown in FIG. 4 is obtained by printing a heat generating part 350 made of semiconductor ink (PTC ink) on a resin film and an electrode part 360 made of Ag paste. The heat generating part 350 is provided between the through holes 330 to avoid the above. In addition, the electric planar body 310 is disposed so that the heat generating portion 350 is positioned directly above the hot water pipe 21. As a result, the heating position is substantially matched between the case of heating by the electric sheet heating element 310 and the case of heating by the hot water flowing through the hot water pipe 21, so that the heating by the electric sheet heating element 310 (heating) and warm water are performed. This makes it difficult to cause non-uniform heating (heating unevenness) during heating (heating). Even when the electric sheet heating element 31 is formed of a single sheet, the heat generating portion of the electric sheet heating element 31 is positioned directly above the hot water pipe 21.

  The electric planar heating element 31 (including 310 hereinafter) is fixed to the base material 11 by applying an adhesive applied to the lower surface of the electric planar heating element 31 or the upper surface 12 of the base material 11. The method is not limited to the method using the adhesive (including the case of the pressure-sensitive adhesive), and an adhesive (including the case of the pressure-sensitive adhesive) is provided on the lower surface of the radiator 41, and the radiator 41 is connected to the upper surface of the electric sheet heating element 31. When adhering to the base material upper surface 13 on both sides of the groove 12 exposed in the through hole 33 (hereinafter referred to as 330) of the electric planar heating element 31, the lower surface of the radiator 41 is bonded. The heat dissipation body 41 may be adhered by an agent, and according to this method, the heat dissipation body 41 and the electric planar heating element 31 can be adhered to the base material 11 at a time, thereby simplifying the operation. be able to.

  The radiator 41 efficiently transmits the heat of the hot water pipe 21 to the entire lower surface of the finishing material 51, and is made of a metal foil or a plate such as an aluminum foil or an aluminum plate. The radiator 41 is recessed in the through hole 33 of the electric planar heating element 31 and is in contact with the hot water pipe 21 in the through hole 33. Further, as described above, when an adhesive is provided on the lower surface of the heat radiating body 41, the heat radiating body 41 is bonded to the upper surface of the electric planar heating element 31, and at the portion of the through hole 33. The hot water pipe 21 and the base material upper surface 13 on both sides of the groove 12 are bonded.

  The finishing material 51 constitutes the upper surface of the floor heating panel 10 and is composed of a floor material made of a wooden floor material, a carpet or the like. The finishing material 51 is fixed to the radiator 41 and the like with an adhesive or the like.

  In addition, although the floor heating panel 10 of the said structure was mounted on the concrete slab and it walked on the upper surface of the said finishing material 51, the noise did not generate | occur | produce. From this, it was confirmed that the floor heating panel 10 hardly caused an air pool between the electric planar heating element 31 and the heat radiating body 41 and hardly generated an abnormal noise due to the air pool during walking.

  In the said Example, although the structure which uses a heat radiator was shown as a more preferable example, it is good also as a structure which does not use a heat radiator. 5 and 6 show a floor heating panel 10A that does not use a radiator. The floor heating panel 10 </ b> A has only the radiator 41 in the floor heating panel 10, and the other configuration is the same as the floor heating panel 10, and detailed description thereof is omitted. 5 and 6, members having the same names as those in FIGS. 1 to 3 are denoted by the same reference numerals.

  Also in the floor heating panel 10 </ b> A, a plurality of through holes 33 are formed in the electric planar heating element 31, and the through holes 33 are located above the hot water pipe 21. Heat reaches the finishing material 51 through the through-hole 33, and the finishing material 51 can be efficiently heated without being obstructed by the electric planar heating element 31.

  The floor heating panel of the present invention configured as described above is rapidly heated (heated) by an electric sheet heating element in the initial stage of heating, and then when the hot water in the hot water pipe reaches a predetermined temperature (for example, 50 ° C.) Heating is performed by switching from heating (heating) by the expression surface heating element to heating only by hot water. Therefore, the start-up time in the initial stage of heating is short, and after the start-up, heating is performed with hot water having a low running cost, which is economical. Further, during heating (heating) with hot water, the heat of the hot water pipe heats the finishing material above the electric planar heating element through the through hole formed in the electric planar heating element above the hot water pipe. Therefore, heating with warm water (heating) can be performed efficiently.

  In addition, when a radiator is provided between the electric sheet heating element and the finishing material and is brought into contact with the hot water pipe at the through hole portion of the electric sheet heating element, the radiator is the upper surface of the electric sheet heating element. Despite being located, the heat of the hot water pipe is directly transmitted to the radiator, and the finishing material laminated on the radiator can be efficiently heated. Without being obstructed by the heating element, the entire lower surface of the finishing material can be heated with the heat of the hot water, so that it can be efficiently heated and the running cost can be further reduced.

DESCRIPTION OF SYMBOLS 10,10A Floor heating panel 11 Base material 12 Upper surface of base material 13 Upper surface of base material on both sides of groove 17 Groove 21 Hot water pipe 31, 310 Electric planar heating element 33, 330 Through hole 41 Radiator 51 Finishing material

Claims (2)

A base material, a hot water pipe disposed in a groove formed on the upper surface of the base material, an electric sheet heating element laminated on the substrate, and a finish laminated on the electric sheet heating element In floor heating panels made of wood,
The electric planar heating element has a plurality of through holes, and the through holes are located above the hot water pipes .
A radiator is disposed between the electric planar heating element and the finishing material, and the radiator is in contact with the hot water pipe at a through-hole portion of the electric planar heating element. Floor heating panel. The through hole of the electric planar heating element has a size that protrudes to both sides of the groove formed on the upper surface of the base material,
The heat radiator is bonded to the upper surface of the electric sheet heating element, and the heat radiator is bonded to the upper surface of the base material in the through hole portion of the electric sheet heating element protruding from the groove. The floor heating panel according to claim 1.

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