JPH11237066A - Floor heating panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor heating panel which enables prevention of local temperature rise of a heat source along with a uniform temperature distribution. SOLUTION: A plurality of air vent holes 15 arc formed in an aluminum foil 14 as soaking sheet to be applied on the undersurface of a surface plate 7. The air vent holes 15 are made circular and arranged scattered crisscross at points with no cord heater 12 at a specified interval. With the application of the aluminum foil 14 can the surface plate 7, air accumulated between the aluminum foil 14 and the surface plate 7 is forced out through the vent holes 15 to eliminate the accumulation of the air. There is no adverse effect as caused by 21 high temperature on any peripheral member such as heat insulating material 13 for holding a cord heater 12, thereby keeping the temperature distribution of a floor heating panel 1 uniform.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a floor heating panel used for an electric floor heating device.

[0002]

2. Description of the Related Art Conventionally, in an electric floor heating apparatus, there is a method in which a plurality of floor heating panels are arranged on a lower surface of a floor material to heat the floor material. As such a floor heating panel, a type in which the outer periphery is formed of a smooth outer shell made of steel to facilitate handling is generally known.

In this type of floor heating panel in which a heat source is a cord heater, a meandering cord heater is placed on an insulating material made of, for example, foamed resin, and is housed in an outer shell. The floor heating panel whose outer material is heated by the cord heater warms the floor material from below. In a floor heating panel using a code heater as a heat source, an aluminum foil for equalizing the temperature of the code heater is usually arranged so as to contact the code heater from above. In the case of being formed of a material, a method of pasting one aluminum foil over the entire area of the inner surface of the upper outer material in advance has been used.

[0004]

However, in the operation of attaching the aluminum foil for heat equalization to the outer shell material,
If the operator affixes the aluminum foil non-uniformly, or if the affixing is performed from the periphery of the aluminum foil first, air bubbles will be generated between the aluminum foil and the outer shell if the affixing is continued. Also, it is difficult for even a familiar operator or a pasting machine to paste the aluminum foil without air pockets.

[0005] During operation of the floor heating device, the air pool causes heat insulation between the aluminum foil and the outer shell, so that a local temperature rise occurs in the vicinity of the air pool, and the temperature distribution of the floor heating panel varies. Occurs. Further, as a result of a local temperature rise, it is conceivable that peripheral members are adversely affected, for example, aging of a heat insulating material holding the cord heater is caused.

On the other hand, in an electric floor heating panel using a planar heating element as a heat source instead of a code heater,
It is necessary to cover the peripheral surface of the sheet heating element with the insulating sheet. In recent years, a method in which the sheet heating element is accommodated in the outer member while the sheet heating element is covered with two upper and lower insulating sheets and the insulating sheet is attached to the surface of the outer member with an adhesive. However, in this case, as in the case described above, there may be a case where air is trapped between the insulating sheet and the outer shell.

[0007] When an air pocket is formed between the insulating sheet and the outer shell material, the air pool is insulated at the portion where the air pool is formed, and a local temperature rise occurs near the air pool, causing a variation in the temperature distribution of the floor heating panel. There is a risk. In addition, as a result of a local temperature rise, it is conceivable that peripheral members are adversely affected, for example, aging of an insulating sheet covering the planar heating element is caused.

The present invention has been made in view of the above problems, and has as its object to provide a floor heating panel that can prevent a local temperature rise of a heat source and has a uniform temperature distribution. I do.

[0009]

In order to achieve the above-mentioned object, according to the present invention, in a floor heating panel disposed below a floor material, a cord as a heat source for transmitting heat to the floor material is provided. A heater and a smooth outer material for accommodating the code heater are provided, and the opening forming means for air release is distributed and arranged on the heat equalizing sheet provided integrally with the code heater and attached to the outer material. A floor heating panel characterized in that:

In this configuration, as the heat equalizing sheet is attached to the outer material, the air collected between the heat equalizing sheet and the outer material is pushed out through the opening formed by the opening forming means. Elimination of air pockets. Therefore, it is possible to eliminate the occurrence of the local heat-insulating state between the heat equalizing sheet and the outer shell material, which has conventionally occurred, so that the local temperature rise does not occur and the peripheral members are not adversely affected. Further, the temperature distribution of the floor heating panel can be kept uniform. Further, since the opening forming means is dispersedly arranged, it is possible to reliably prevent the air accumulation in the entire area of the heat equalizing sheet.

[0011] The opening forming means is a slit (a split) capable of forming an air vent hole when required, in addition to the air vent hole.
including. For example, in the case of a round air vent hole, if the diameter of the air vent hole is too large, equal heat distribution cannot be performed over the entire area of the floor heating panel. If the diameter of the air vent hole is too small, when the heat equalizing sheet is stuck to the outer shell material to remove the air accumulated therein, the air cannot be sufficiently vented. In addition, it is preferable that the distance between the air vent holes is small as long as the air vent is small. However, if the distance is too small, the aluminum foil may be torn. Therefore, when the air vent hole is, for example, round, the diameter is preferably 1 to 2 mm. Further, it is preferable that the air vent holes are dispersed and arranged at predetermined intervals of 10 to 30 mm in the vertical and horizontal directions.

According to a second aspect of the present invention, there is provided a floor heating panel disposed below a floor material, wherein a planar heating element as a heat source for transmitting heat to the floor material, an insulating sheet covering the planar heating element, A floor heating panel comprising a smooth outer member for accommodating a sheet heating element in a state where the insulating sheet is stuck, wherein openings forming means for venting air are distributed on the insulating sheet. is there.

In this configuration, as the insulating sheet covering the planar heating element is adhered to the outer shell, air collected between the outer shell and the insulating sheet passes through the opening formed by the opening forming means. As it is pushed out, there is no air pocket. Therefore, it is possible to eliminate the occurrence of a local heat-insulating state between the outer member and the insulating sheet. As a result, a local temperature rise does not occur and the peripheral members are not adversely affected. In addition, since the opening forming means is dispersedly arranged, it is possible to reliably prevent air from being trapped in the entire area of the insulating sheet. Further, the temperature distribution of the floor heating panel can be kept uniform.

[0014] The opening forming means is a cut (a split) capable of forming an air vent hole when required, in addition to the air vent hole.
including. For example, in the case of a round air vent hole, if the diameter of the air vent hole is too large, equal heat distribution cannot be performed over the entire area of the floor heating panel. If the diameter of the air vent hole is too small, the air cannot be sufficiently released when the insulating sheet is attached to the outer shell material to remove the air accumulated therein. In addition, it is preferable that the space between the air vent holes is small if the space is small, so that the insulating sheet may be torn if the space is too small. Therefore, when the air vent hole is, for example, round, the diameter is preferably 1 to 2 mm. Further, it is preferable that the air vent holes are dispersedly arranged at positions avoiding the planar heating element at intervals of 10 to 30 mm vertically and horizontally.

The floor heating panel according to the third aspect is the second aspect.
Wherein the opening forming means is arranged at a position avoiding the planar heating element. With this configuration, in addition to the effect of the invention described in claim 2, the insulating effect of the insulating sheet is not impaired because the opening forming means is formed at a position avoiding the planar heating element.

According to a fourth aspect of the present invention, in the floor heating panel according to the first, second or third aspect, the opening forming means includes a cut. With this configuration, the following operation is achieved in addition to the operation of the first, second, or third aspect of the present invention. In other words, if an air pocket occurs when the heat equalizing sheet or the insulating sheet is attached to the outer shell material, a cut is once opened at a position corresponding to the air pool, and the cut is closed after the air is released. Therefore, the opening does not remain in the sheet after the attachment is completed, so that the soaking effect of the soaking sheet and the insulating effect of the insulating sheet are not impaired.

[0017]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a partially cutaway perspective view showing a main part of a room in which a floor heating device using a floor heating panel according to an embodiment of the present invention is installed. With reference to FIG. 1, in this floor heating device 2,
A plurality of floor heating panels 1 are accommodated below a floor panel 3 as a floor material, and the floor heating panel 1 heats the floor panel 3 to heat the floor.

The floor heating apparatus 2 includes a plurality of floor heating panels 1, 1 #, a relay box 4 as a switchgear box having a relay (not shown) therein, and individual floor heating panels 1
And a controller 5 for controlling the temperature. The floor heating panel 1 is not usually arranged at the peripheral portion of the floor where the need for heating is scarce, and is provided at the center of the floor at about 70% of the front floor area.
% Or less.

FIG. 2 is an enlarged sectional view taken along the line II in FIG. Referring to FIG. 1 and FIG. 2, in general, in the case of constructing a floor, a large number of joists 10 are attached below a floor plate 3 in parallel at a predetermined interval, and the floor 10 is constructed. The floor plate 3 is arranged. The floor plate 3 is formed of an elongated rectangular plate member 11, and the floor is configured by laying the respective plate members 11 one after another in a phased manner.

Generally, a rectangular timber having a rectangular cross section is used for the joist 10.
Is attached. The floor heating panel 1 is accommodated in an accommodation space provided between the joists 10 adjacent to each other. Moreover, the heat insulating material 12 is arrange | positioned below the floor heating panel 1, and prevents that the heat of the floor heating panel 1 escapes below.

FIG. 4 is a partially cutaway perspective view of the floor heating panel. Referring to FIGS. 3 and 4, floor heating panel 1 is substantially plate-shaped, and its peripheral surface is a front plate 7 and a rear plate 8 as outer members.
And a side plate 6. The front plate 7, the back plate 8 and the side plate 6 are made of steel, and a code heater 9 as a heat source and a downward heat diffusion are provided in the accommodation space defined by the front plate 7, the back plate 8 and the side plate 6. And an aluminum foil 14 as a heat equalizing sheet.

The cord heater 9 is held by the heat insulating material 13 in a state of being arranged in a parallel meandering manner, and heats the surface plate 7. One aluminum foil 14 is previously adhered to the lower surface 7a of the surface plate 7 with an adhesive, and is arranged so as to be in contact with the cord heater 9 from above. The thickness of the aluminum foil 14 is, for example, 50 μm, and a felt or a foamed resin can be used as the heat insulating material 13. For example, foamed polyurethane or foamed polypropylene can be considered as the foamed resin.

Referring to FIG. 4, a plurality of air vent holes 15 as opening forming means are formed in aluminum foil 14 as a heat equalizing sheet adhered to lower surface 7a of surface plate 7. The air vent holes 15 have a circular shape and a diameter of 1 to 2 mm, and are dispersed and arranged at predetermined intervals of 10 to 30 mm vertically and horizontally only at locations where the code heater 9 is not arranged.

Therefore, when the aluminum foil 14 is adhered to the entire lower surface 7a of the surface plate 7 with an adhesive, air trapped between the surface plate 7 and the aluminum foil 14 can be reliably removed. In this embodiment,
The following operational effects are obtained. That is, the aluminum foil 1
As air is adhered to the surface plate 7, the air collected between the aluminum foil 14 and the surface plate 7 is pushed out from the air vent hole 15, so that no air is trapped. Therefore, it is possible to eliminate the occurrence of a local heat insulating state between the aluminum foil 14 and the surface plate 7 which has conventionally occurred due to the air pool, and as a result, for example, the heat insulating material 13 holding the cord heater 9 or the like No adverse effect on the peripheral members due to high temperature. Further, the temperature distribution of the floor heating panel 1 can be kept uniform.

Further, since the air vent holes 15 are distributed over the entire area of one aluminum foil 14,
Air accumulation can be reliably prevented in the entire area of the aluminum foil 14. In the present embodiment, the aluminum foil 1
Although the circular air vent hole 15 as the opening forming means is provided in 4, it is not limited to such an air vent hole 15.

FIG. 5 is a partially cutaway perspective view of a floor heating panel according to another embodiment of the present invention. In the present embodiment, a plurality of cuts 16 as opening forming means are formed in the aluminum foil 14. The cuts 16 are formed continuously in one direction, and are constituted by a plurality of rows of the cuts 16. The length of each cut 16 is 5 to 20 mm, and each cut 16 is formed at an interval of 5 to 10 mm. Also, from the row of the break 16 to the adjacent row is 10 to 30
mm intervals are provided.

The present embodiment has the following functions and effects in addition to the functions and effects similar to the embodiment of FIG. That is,
If an air pocket occurs when the aluminum foil 14 is attached to the surface plate 7, a gap 16 is opened once at a position corresponding to the air pool, and after the air is released, the gap 16 is formed.
Closes. Therefore, since the opening does not remain in the aluminum foil 14 after the attachment is completed, the heat equalizing effect of the aluminum foil 14 as the heat equalizing sheet is not impaired.

Since the cuts 16 are arranged with the above-mentioned dimensions, the aluminum foil 14 does not tear when the aluminum foil 14 is attached to the surface plate 7. Next, still another embodiment will be described. FIG. 6 is a sectional view of a floor heating panel according to another embodiment of the present invention. Referring to FIG. 6, floor heating panel 1 according to the present embodiment uses planar heating element 17 as a heat source. In the present embodiment, the floor heating panel 1 is accommodated in an accommodation space provided between the joists 10, 10, similarly to the embodiment of FIG. 2, and the heat insulating material 12 is arranged below the floor heating panel 1, and the floor heating panel 1 is provided. This prevents the heat of the panel 1 from escaping downward.

As shown in FIG. 7, the planar heating element 17 is formed by arranging the heating wires 31 in the warp direction at a predetermined interval with respect to the flat yarn 32, and arranging the flat yarn 33 in the weft direction. The heating wire 3
A plurality of electrode wires 34 are folded at predetermined intervals so as to intersect with one. Referring to FIG. 6, planar heating element 17 is formed in a tape shape, and a plurality of planar heating elements 17 are arranged in parallel with a predetermined interval between each other. These sheet heating elements 17 are covered by two insulating sheets 18 and 19 from both upper and lower directions. Insulation sheet 18, 1 by heat fusion
9 are joined together, and the upper insulating sheet 18
Is attached to the lower surface 7a of the surface plate 7 with an adhesive, and the planar heating element 17 as a heat source is accommodated in the floor heating panel 1. The insulating sheets 18 and 19 may be made of, for example, a synthetic resin such as polyethylene or polyester.

Insulating sheets 18 and 1 covering sheet heating element 17
9 is provided with a plurality of air vent holes 20 as opening forming means. The air vent hole 20 has a circular shape and a diameter of 1 to 2 mm, and penetrates the two insulating sheets 18 and 19. The air vent holes 20 are dispersedly arranged at a position avoiding the sheet heating element 17 at a distance of 10 to 30 mm vertically and horizontally.

In the present embodiment, the following operation and effect can be obtained. That is, as the upper insulating sheet 18 is adhered to the lower surface 7a of the surface plate 7, the air trapped between the surface plate 7 and the insulating sheet 18 is pushed out through the air vent holes 20, so that no air is trapped. . Therefore, the occurrence of a local heat insulating state between the surface plate 7 and the insulating sheet 18 can be eliminated, so that a local temperature rise does not occur and the insulating sheets 18 and 19 are not adversely affected. Further, the temperature distribution of the floor heating panel 1 can be kept uniform. Further, since the air vent hole 20 is formed at a position avoiding the planar heating element 17, the insulating sheet 1
The insulation effect of 8, 19 is not impaired. In addition, although it is preferable that the air vent hole 20 avoids the planar heating element 17, it is not limited to this, and at least the heating wire 31 and the electrode wire 34 may be avoided.

Further, since the air vent holes 20 are arranged in a dispersed manner, air accumulation can be reliably prevented over the entire area of the insulating sheet 18. In the present embodiment, the insulating sheet 1
8 and 19 are circular air vent holes 20 as opening forming means.
However, the present invention is not limited to this, and a plurality of cuts as opening forming means may be formed in the insulating sheets 18 and 19.

The cut is formed continuously in one direction, and is composed of a plurality of cut rows. The length of each break is 5 to 20 mm, and 5 to 10 between cuts
mm. In addition, an interval of 10 to 30 mm is provided from a row of cuts to an adjacent row. When a cut is formed in the insulating sheets 18 and 19 as the opening forming means, the following operation and effect are obtained in addition to the same operation and effect as the embodiment of FIG. That is, if an air pocket occurs when the insulating sheet 18 is adhered to the surface plate 7, a gap is opened once at a position corresponding to the air pool, and the gap is closed after air is released to eliminate the air pool. Therefore, after the attachment is completed, the insulating sheet 1
Since no openings remain in 8, 19, the insulating sheets 18,
19 does not impair the insulation effect. In addition, since the cuts are arranged with the above-described dimensions, the insulating sheets 18 and 19 do not tear when the insulating sheet 18 is attached to the front plate 7.

Although the air vent holes 15 and 20 have been described as having a circular shape in the embodiment of FIG. 2 and the embodiment of FIG. 6, the present invention is not limited to this, and may have an elliptical shape. It goes without saying that various changes can be made within the scope of the claims of the present invention.

[0035]

According to the first aspect of the present invention, when the heat equalizing sheet is attached to the outer material, the air interposed between the heat equalizing sheet and the outer material is formed by the opening forming means. No air pockets are created because they are pushed through. Therefore, it is possible to prevent the local temperature rise that has conventionally occurred due to the air pool, and as a result, it is possible to prevent the deterioration of the durability of the peripheral members. In addition, since the temperature distribution of the floor heating panel can be kept uniform, good floor heating can be achieved.

According to the second aspect of the present invention, when the insulating sheet is attached to the outer shell, air interposed between the outer shell and the insulating sheet is pushed out through the opening formed by the opening forming means. As a result, air pools do not occur.
Therefore, it is possible to prevent the local temperature rise that has conventionally occurred due to the air pool, and as a result, it is possible to prevent the deterioration of the durability of the peripheral members. In addition, since the temperature distribution of the floor heating panel can be kept uniform, good floor heating can be achieved.

According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, since the opening forming means is formed at a position avoiding the planar heating element, the insulating effect of the insulating sheet is not impaired. . According to the fourth aspect of the invention,
Or in addition to the effect of the invention described in 3 above, if an air pocket occurs when the heat equalizing sheet or the insulating sheet is stuck to the outer shell material, a gap is once opened at a position corresponding to the air pool to release air. The gap closes after the air pocket has been eliminated. Therefore, the opening does not remain in the sheet after the attachment is completed, so that the soaking effect of the soaking sheet and the insulating effect of the insulating sheet are not impaired.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a main part of a room in which a floor heating device using a floor heating panel according to an embodiment of the present invention is installed.

FIG. 2 is an enlarged cross-sectional view taken along a line II in FIG.

FIG. 3 is an enlarged view of a main part of FIG. 2;

FIG. 4 is a partially cutaway perspective view of a floor heating panel.

FIG. 5 is a partially cutaway perspective view of a floor heating panel according to another embodiment of the present invention.

FIG. 6 is an enlarged sectional view of a main part of a floor heating panel according to another embodiment of the present invention.

FIG. 7 is a schematic plan view showing a configuration of a sheet heating element.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 floor heating panel 2 floor heating device 7 surface plate 9 cord heater 10 joist 14 aluminum foil 15 air vent hole 16 cut 17 planar heating element 18 insulating sheet 19 insulating sheet 20 air vent hole

Claims (4)

[Claims] An underfloor heating panel disposed below a flooring (3).
In (1), a cord heater as a heat source for transmitting heat to the floor material (3)
(9) and the smooth outer shell (6,
7, 8), and is provided integrally with the cord heater (9), and is provided with the outer shell material (6, 8).
A floor heating panel characterized in that openings (15, 16) for venting air are dispersedly arranged on a soaking sheet (14) to be attached to (7, 8). 2. A floor heating panel arranged below a floor material (3).
In (1), a sheet heating element (17) as a heat source for transmitting heat to the floor material (3)
And an insulating sheet (18, 19) for covering the sheet heating element (17), and a smooth outer material (6, 7) for accommodating the sheet heating element (17) with the insulating sheet (18) attached. , 8), wherein the opening forming means (20) for venting air is dispersedly arranged on the insulating sheets (18, 19). 3. The floor heating panel according to claim 2, wherein the opening forming means (20) is arranged at a position avoiding the planar heating element (17). 4. A floor heating panel according to claim 1, wherein said opening forming means includes a cut (16).