JPH07269890A - Floor heating panel - Google Patents

Abstract

PURPOSE:To provide a floor heating panel in which heat conduction efficiency from a heating wire to a heat uniformizing plate is satisfactory, and productivity and reliability are excel lent. CONSTITUTION:There are provided a heating wire 1 that is heated by being supplied with electric power, a heat insulator 3 having a bonding surface 5 comprising a resin material in which air bubbles 3a, 3a,... are formed and having a fitting groove 4 in which the heating wire 1 is fitted, and a heat uniformizing plate 6 disposed to overlap on the bonding surface 5 of the heat insulator 3 for receiving heat from the heating wire 1.

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 which is arranged under the floor of a house or the like and warms the floor surface.

[0002]

2. Description of the Related Art A floor heating panel of this type is shown in FIG. This one has a heating wire 1 and a soaking plate
6, soaking sheet 11, heat-sealing film 12, and heat insulating material 10
Consists of.

The heating wire 1 generates heat when energized with commercial power, and its outer circumference is covered with an insulating material such as polyvinyl chloride resin. The heat equalizing plate 6 is made of metal, is arranged substantially parallel to the heating wire 1, and receives heat from the heating wire 1. The heat equalizing sheet 11 is made of aluminum with one surface coated with vinyl chloride resin, and is arranged so that the coating surface 11a faces the heat equalizing plate 6. The heat fusion film 12 is for bonding the heat equalizing plate 6 and the heat equalizing sheet 11 and is made of a modified polyester resin. Insulation
10 is a soaking sheet made of urethane foam, etc.
It is provided facing the uncoated surface 11b of 11 to prevent heat from escaping.

In this floor heating panel, the coating surface 11a of the heat equalizing sheet 11 is heat-sealed to the insulating coating of the heating wire 1 and is also heat-sealed to the heat-soaking plate 6 via the heat-sealing film 12 so that the heat-uniforming sheet 6 is evenly melted. It is formed by injecting the heat insulating material 10 below the heat sheet 11 and curing it. And when using, the heating wire
The heat generated in 1 is directly conducted to the heat equalizing plate 6, and the heat is also conducted by the heat equalizing sheet 11, so that the heat can be efficiently transferred to the heat equalizing plate 6.

Another conventional example is shown in FIG. This is a heating wire 1, a first wood fiber board 13 having a fitting groove 13a into which the heating wire 1 fits, and an opening portion of the fitting groove 13a which is adhered by being laminated on the first wood fiber board 13. And a soaking plate 6 which is adhered to the second wood fiber board 14 and receives heat from the heating wire 1 via the second wood fiber board 14. This floor heating panel has a heating line 1
Can be simply arranged.

[0006]

However, the former floor heating panel described above has the following problems.
That is, when the heat equalizing sheet 11 and the insulation coating of the heating wire 1 are heat-sealed, the insulation coating is melted and deformed, and the insulation performance is deteriorated. Therefore, the insulating coating of the heating wire 1 has to be formed thicker in advance, which increases the material cost and may deteriorate the thermal conductivity. Further, since the vinyl chloride resin coated on the heat equalizing sheet 11 does not heat-bond with the metal heat equalizing plate 6, it is necessary to dispose a heat-bonding film 12 separately, which complicates the assembly process. turn into.

Further, the latter floor heating panel described above has the following problems. That is, since the heat generated in the heating wire 1 is conducted to the heat equalizing plate 6 via the second wood fiber board 14, the heat conduction efficiency is deteriorated. Therefore, it is necessary to set the heat generation temperature of the heat generating wire 1 to a high value, and therefore, the vinyl chloride resin, which is inexpensive but has low heat resistance, is replaced by a resin such as silicon-based resin or fluorine-based resin, which has high heat resistance but is expensive. The material must be used as an insulating coating. If a flammable material such as wood fiberboard is placed around the heating wire 1, setting the heating temperature of the heating wire 1 to a higher value increases the risk of smoke, ignition, etc. .

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a floor heating system which has good heat conduction efficiency from a heating wire to a heat equalizing plate and which is excellent in productivity and reliability. It is in providing panels.

[0009]

In order to solve such a problem, the floor heating panel according to claim 1 is composed of a heating wire that generates heat when energized and a resin material in which bubbles are formed. A heat insulating body having an adhesive surface provided with a fitting groove to be fitted therein and a heat equalizing plate arranged so as to overlap the adhesive surface of the heat insulating body and receiving heat from the heating wire are provided.

Further, in the floor heating panel according to a second aspect of the present invention, a fixing protrusion that is elastic and protrudes in a direction of closing the opening is provided at an opening edge portion of the fitting groove of the heat insulator according to the first aspect. It is configured to be.

The floor heating panel according to a third aspect of the present invention is configured such that the fixed protrusion according to the second aspect is formed to have a length that allows the heating wire to be press-fitted into the fitting groove.

A floor heating panel according to a fourth aspect of the present invention is configured such that a coating having a high thermal conductivity is added to the outer circumference of the heating wire according to the first to third aspects.

The floor heating panel according to a fifth aspect of the present invention is made of a metal, which has an insulating coating made of polyvinyl chloride resin and which generates heat when energized, and a metal which is arranged substantially parallel to the heat generating line and receives heat from the heat generating line. A soaking plate and a heat-sealing part made of a modified polyester resin on one surface, and the heat-sealing part is heat-sealed to the soaking plate to hold a heating wire between the soaking plate. The sheet and the heat insulating material provided facing the other surface of the heat equalizing sheet are provided.

[0014]

According to the structure of claim 1, the arrangement of the heating wire is simplified, the amount of heat escaping from the heating wire to the side opposite to the heat equalizing plate is reduced, and the heat of the heating wire is reduced. Conducts directly to the soaking plate.

According to the second aspect of the invention, in addition to the effect of the first aspect, the heating wire is easily fitted and fixed in the fitting groove.

According to the third aspect of the present invention, in addition to the function of the second aspect, when the heating wire is fitted and fixed in the fitting groove, the fixing protrusion is supported by hand to open the fitting groove. You don't have to keep it open.

According to the structure of claim 4, in addition to the effects of claims 1 to 3, the efficiency of heat transfer from the heating wire to the heat equalizing plate is improved.

According to the fifth aspect of the present invention, the soaking sheet can be directly heat-sealed to the soaking plate and melt when the heat-sealing sheet is heat-sealed to the insulation coating of the heating wire. Absent.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

This floor heating panel, as shown in FIG.
It comprises a heating wire 1, a heat insulator 3, and a heat equalizing plate 6.

The heating wire 1 is for generating heat when energized with commercial power, and is arranged, for example, in a generally zigzag shape. As shown in FIG. 2, the heating wire 1 is a core material having an insulating property.
A metal wire 1b is spirally wound around 1a, and an insulating coating 1c made of polyvinyl chloride resin is provided on the outer periphery of the metal wire 1b.
As shown in FIG. 3, the heating wire is formed by winding a metal wire 2b around an insulating core material 2a in a spiral shape,
Providing a heat-sensitive coating 2c made of an organic heat-sensitive material having a characteristic that impedance changes negatively according to temperature, further, a metal detection wire 2d is spirally wound around the heat-sensitive coating 2c, and the outer periphery thereof is provided. Heat-sensitive heating wire 2 with insulation coating 2e
May be

The heat insulator 3 is made of a resin material in which the closed cells 3a, 3a, ... Are formed. For example, polypropylene resin, urethane resin or the like is injected into a mold and foamed to be cured. This heat insulating body 3 has an adhesive surface 5 provided with a fitting groove 4 into which the heating wire 1 fits. The fitting groove 4 has a width and a depth corresponding to the outer diameter dimension of the heating wire 1 to be fitted. As a method of providing this fitting groove 4, there are a method of providing a convex projection on the mold, a method of providing a flatly formed adhesive surface 5 of the heat insulating body 3 by notching as necessary, and the like. .

The soaking plate 6 is made of metal and is a heat insulator.
It is arranged so as to overlap the adhesive surface 5 of 3 and receives heat from the heating wire 1. The heat equalizing plate 6 and the adhesive surface 5 of the heat insulating body 3 are adhered to each other via an adhesive layer 7. As a material for the adhesive layer 7, for example, a film having a heat-sealing property, a double-sided pressure-sensitive adhesive, an adhesive, or the like having a small thickness may be used.

This floor heating panel includes a heat insulating body 3 and a fitting groove 4
After the heating wire 1 is fitted to, the adhesive surface 5 of the heat insulator 3 and the heat equalizing plate 6 are adhered to each other via the adhesive layer 7 to be assembled. That is, it can be assembled simply and easily. Further, since the fitting groove 4 is also a positioning portion for the heating wire 1, the heating wire 1 can be wired exactly as desired. Moreover, since the heat insulator 3 having the fitting groove 4 is made of the resin material in which the closed cells 3a, 3a, ... Are formed, the amount of heat escaping from the heating wire 1 to the side opposite to the soaking plate 6 is reduced. In addition, the heat generated in the heating wire 1 is directly applied to the soaking plate 6
To the heat equalizing plate 6, the heat can be efficiently conducted to the heat equalizing plate 6.

Next, a second embodiment of the present invention will be described with reference to FIG. The members having the same basic functions as those of the first embodiment are designated by the same reference numerals as those of the first embodiment, and the description thereof will be omitted.

This floor heating panel has a fitting groove 4 for the heat insulating body 3.
The fixing protrusion 4a is provided at the opening edge of the. Fixed protrusion 4a
Has elasticity and protrudes in a direction of closing the opening of the fitting groove 4, and is formed by providing an undercut portion on the side wall of the fitting groove 4, for example. That is, the fitting groove
The opening edge that remains when the side wall of 4 is cut is the fixed protrusion 4a.
Becomes The fixed protrusion 4a is formed to have a length that allows the heating wire 1 to be press-fitted into the fitting groove 4.

In this floor heating panel, the heating wire 1 is press-fitted into the fitting groove 4 of the heat insulating body 3. At this time, the fixed protrusion
Since the heating wire 1 is pressed by the heating wire 1 and once bent, it is displaced to its original position, so that the heating wire 1 can be fitted into the fitting groove 4 and temporarily fixed. That is, since the heating wire 1 can be easily fitted and fixed, the assembly workability is improved.

Next, a third embodiment of the present invention will be described with reference to FIGS.
It will be described based on. The members having the same basic functions as those of the first embodiment are designated by the same reference numerals as those of the first embodiment,
The description is omitted.

This floor heating panel is provided on the outer circumference of the heating wire 1,
It is formed by adding a coating having high thermal conductivity. Specifically, a strip-shaped metal film 8 made of aluminum foil or the like is spirally wound around the insulating coating 1c of the heating wire 1. Figure 5
Is a partially omitted perspective view showing a state where the metal film 8 is wound around the heating wire 1, and FIG. 6 is a partially omitted perspective view showing a state where the metal film 8 is wound around the heat-sensitive heating line 2. .

In this floor heating panel, the heat of the heating wire 1 is efficiently guided to the heat equalizing plate 6. That is, the heating wire 1
Although the temperature of the outer peripheral portion of the outer peripheral portion of the sheet which contacts the heat insulator 3 is higher than that of the portion which contacts the heat equalizing plate 6 through the adhesive layer 7, the metal film 8 having a high thermal conductivity is wound. By doing so, the heat of the part in contact with the heat insulator 3 is transferred to the metal film.
It is immediately guided to the soaking plate 6 via 8. In this way, since the heat of the heating wire 1 is efficiently guided to the heat equalizing plate 6, it is possible to set the temperature of the heating wire 1 low, so that the disadvantage caused by the high heating temperature is eliminated,
It is possible to reduce the possibility that the insulation coating 1c of the heating wire 1 and the heat insulator 3 are damaged or deteriorated by heat. Therefore, reliability, durability and the like during use are improved.

The metal film is not limited to a film made of a single metal, but may be made of an alloy of a plurality of metals or a film made by laminating a metal film and a resin film.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The members having the same basic functions as those in the first embodiment are designated by the same reference numerals as those in the first embodiment.

This floor heating panel includes a heating wire 1 and a soaking plate.
6, a soaking sheet 9, and a heat insulating material 10. Heating wire
1 has an insulating coating 1c made of polyvinyl chloride resin, which generates heat when energized with commercial power. Soaking plate 6
Is made of metal and is arranged substantially parallel to the heating wire 1 to receive heat from the heating wire 1.

The soaking sheet 9 is made of aluminum,
On one surface thereof, there is provided a heat-sealing portion 9a formed by laminating a modified polyester film having a good heat-sealing property with a metal material or a polyvinyl chloride resin. This soaking sheet 9 is
The heat generating wire 1 is held between the heat spreader 6 and the heat spreader 6 by heat-sealing the heat spreader 9a. The heat insulating material 10 is made of urethane foam or the like, is provided facing the other surface of the heat equalizing sheet 9, and prevents heat from escaping.

This floor heating panel is assembled as follows. First, the heating wire 1 is arranged in the heat-sealing portion 9a of the heat equalizing sheet 9 in, for example, a substantially zigzag shape, and is fixed by utilizing the heat-sealing of the heat-sealing portion 9a. At this time, since the heat-sealed portion 9a is made of the modified polyester film, the heating wire 1
The insulating coating 1c of does not melt. Next, soaking sheet 9
The heat-sealed portion 9a and the soaking plate 6 are heat-sealed. Then, by injecting the heat insulating material 10 below the heat equalizing sheet 9 and hardening it, a floor heating panel is formed.

In this floor heating panel, a soaking sheet
Heat-sealed part made by laminating modified polyester film on 9
By providing 9a, when the heat-sealing portion 9a and the insulation coating 1c of the heating wire 1 are heat-sealed, the insulation coating 1c is not melted and deformed. The property is improved. Further, since it is not necessary to previously form the insulating coating 1c of the heating wire 1 to be thick, it is possible to prevent the material cost from rising, and there is no fear that the thermal conductivity is deteriorated. Furthermore, since the heat-sealing portion 9a is directly heat-sealed to the metallic heat equalizing plate 6, it is not necessary to separately arrange a heat-sealing film, and the assembling work is simplified.

[0037]

In the floor heating panel according to the first aspect of the present invention, the arrangement of the heating wire is simplified, so that the assembling workability at the time of production is excellent.
Moreover, the amount of heat escaping from the heating wire to the side opposite to the heat equalizing plate is reduced, and the heat of the heat generating wire is directly transferred to the heat equalizing plate, so that the heat is efficiently transferred from the heat generating wire to the heat equalizing plate. Can be conducted.

Further, in the floor heating panel according to the second aspect, in addition to the effect according to the first aspect, since the heating wire is simply fitted and fixed in the fitting groove, the assembling workability at the time of production is improved.

In addition to the effect of the second aspect, the floor heating panel according to the third aspect supports the fixing projection by hand when fitting the heating wire into the fitting groove and fixing the heating wire in the opening of the fitting groove. It is not necessary to open the heating wire, and the heating wire can be easily fitted and fixed by simply pressing it into the fitting groove.

Further, in the floor heating panel according to claim 4, in addition to the effects according to claims 1 to 3, the heat transfer efficiency from the heating wire to the heat equalizing plate is improved, so that the heating temperature of the heating wire is lowered. Can be set. Therefore, the inconvenience caused by raising the heat generation temperature is eliminated, and the reliability during use is improved.

Further, in the floor heating panel according to the fifth aspect of the present invention, the heat spreader sheet may be directly heat-sealed to the heat spreader plate and may melt the heat insulation wire when the heat insulation wire is heat-sealed. Since it does not exist, assembly workability during production, reliability during use, etc. are improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of the present invention.

FIG. 2 is a partially omitted perspective view showing the heating line.

FIG. 3 is a partially omitted perspective view showing the heat-sensitive heating wire.

FIG. 4 is a sectional view showing a second embodiment of the present invention.

FIG. 5 is a partially omitted perspective view showing a heating wire of a third embodiment of the present invention.

FIG. 6 is a partially omitted perspective view showing a heat-sensitive heating wire according to a third embodiment of the present invention.

FIG. 7 is a sectional view showing a fourth embodiment of the present invention.

FIG. 8 is a cross-sectional view showing a conventional example.

FIG. 9 is a cross-sectional view showing another conventional example.

[Explanation of symbols]

 1 Heating wire 3 Insulator 3a Closed air bubble 4 Fitting groove 5 Bonding surface 6 Uniform plate

Claims (5)

[Claims] 1. A heat generating wire that generates heat when energized, a heat insulating body that is made of a resin material that forms bubbles and has an adhesive surface provided with a fitting groove into which the heat generating wire fits, and an adhesive surface of the heat insulating body. A floor heating panel comprising: a heat equalizing plate which is disposed so as to overlap with the heat generating line and receives heat from a heating wire. 2. The floor heating panel according to claim 1, wherein the opening edge portion of the fitting groove of the heat insulating body is provided with a fixing projection portion which has elasticity and projects in a direction of closing the opening portion. 3. The floor heating panel according to claim 2, wherein the fixed protrusion is formed to have a length that allows the heating wire to be press-fitted into the fitting groove. 4. The floor heating panel according to claim 1, wherein a coating having a high thermal conductivity is added to the outer periphery of the heating wire. 5. A heat generating wire having an insulating coating made of polyvinyl chloride resin and generating heat when energized, a metal heat equalizing plate arranged substantially parallel to the heat generating wire and receiving heat from the heat generating wire, and modified on one surface. A soaking sheet having a heat-sealing portion made of polyester resin and holding a heating wire between the heat-sealing portion and the soaking plate, and the other surface of the soaking sheet A floor heating panel comprising: a heat insulating material provided facing to.