JPH11325491A - Planar heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance workability of a planar heater in an installation room by fixing means for engaging a floor finish maternal to the opposite sides of a planar heating element so that the heating element can be used reversibly. SOLUTION: The planar heating element 2 of a planar floor heater 1 has a surface layer 11 and a rear surface layer 12 being applied to the opposite sides of a heater wire 10. Engaging means 7 are fixed to the outer surface of the surface layer 11 and the rear surface layer 12. The engaging means 7 comprises male and female face fasteners 7a, 7b obtained by tricot stitching polypropylene into a hook and a loop. When the male face fastener 7a fixed to the planar heating element 2 side is engaged with the female face fastener 7b fixed to the floor finish material 6a side, the planar heating element 2 can be used reversibly and workability of the planar heater 1 is enhanced in rooms of various shapes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planar heating apparatus, and more particularly to a planar heating apparatus which can be easily constructed and can be finished with wooden flooring.

[0002]

2. Description of the Related Art Conventionally, as a floor tuft device capable of finishing wood flooring, a floor heating element having a built-in heater wire and a terminal connection box for electrically connecting the sheet heating element are provided. 2. Description of the Related Art A wire and a signal wire electrically connected to a sheet heating element via a terminal connection box are known.
Further, in order to engage the finishing floor material with the upper surface of the planar heating element, surface engaging members having a male and female engagement relationship are arranged on the upper surface of the planar heating element and the rear surface of the finishing floor material, respectively. After the heating elements are laid on the base floor, the finished flooring material is laid down while being sequentially engaged with the upper surface of the sheet heating elements, and the construction is performed. Further, the terminal connection box is mounted on the wall surface, and by installing the terminal connection box in a state of being exposed indoors, there is an advantage that the floor heating device to be laid can be finished thin.

[0003]

However, in the above-described planar heating apparatus, there is a problem that the mounting position of the terminal connection box mounted on the wall is limited by a projection such as a door or a pillar. In addition, the terminal connection box must be mounted so that it does not hit doors or pillars, etc., and in order to accommodate a wide variety of room shapes, many types of planar heating with different terminal connection box positions are required. It is necessary to prepare the equipment in advance, and because it is necessary to construct a combination of different types of planar heating devices according to the room shape, there is a problem that construction takes a lot of time and effort, and moreover, Preparing the above-mentioned types imposes a heavy burden on the manufacturer.

The present invention has been made in view of the above points, and an object of the present invention is to be able to cope with different room shapes by simple construction and to minimize the number of types and combinations of apparatuses. Another object of the present invention is to provide a planar heating device capable of greatly improving workability and manufacturability. Another object of the present invention is to facilitate inspection and repair of the terminal connection box after finishing the floor covering. Another object of the present invention is to provide a planar heating device which can improve the appearance of the terminal connection box.

[0005]

According to a first aspect of the present invention, there is provided a sheet heating element, wherein the sheet heating element is electrically connected to the sheet heating element. And a terminal connection box 3 for stacking the finished flooring 6 on the upper surface of the planar heating element 2. Since the engaging means 7 that can be engaged is attached to the back surface, the planar heating element 2 can be attached with an arbitrary surface up without any front-back relationship, and the finished floor material 6 can be engaged. The construction can be performed easily and in a short time. Further, since the mounting position of the terminal connection box 3 can be easily changed by turning the surface heating element 2 upside down, the mounting position of the terminal connection box 3 is limited by a projection such as a door or a pillar. Without it, it is possible to handle a variety of room shapes with a small variety.

The terminal connection box 3 comprises a heater terminal connection box 5 connected at least to the sheet heating element 2 and a power input terminal connection box 4 connected to the power supply. , 5 preferably has a detachable structure capable of reversing the front and back. In this case, even if the heater terminal connection box 5 is reversed by the reversal of the planar heating element 2, the power supply input terminal is provided. Since the connection box 4 itself does not need to be turned upside down,
The outer shape of the power input terminal connection box 4 does not need to be symmetrical to the front and back sides, and the restrictions on the external design of the power input terminal connection box 4 can be reduced.

[0007] A detachable connecting portion 8 for detachably connecting the heater terminal connecting box 5 and the power input terminal connecting box 4 is provided. The detachable connecting portion 8 is located above the finishing floor 6. It is preferable to arrange the power input terminal connection box 4 without peeling off the finished floor material 6 even if a trouble such as disconnection occurs after the finishing floor material 6 is installed. Inspection and repair of the electric circuit and the like inside the box can be easily performed, and large-scale construction is not required.

[0008]

Embodiments of the present invention will be described below.

As shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 5, a planar heating device 1 used in the present embodiment has a rectangular planar heating element 2 and an electric power of the planar heating element 2. The terminal connection box 3 for making the connection constitutes a main body. The surface heating element 2 has a surface layer 11 and a back surface layer 12 laminated on both sides of a heater wire 10 wired at a predetermined pattern and pitch, and further has an outer surface of the surface layer 11 and an outer surface of the back layer 12. The surface engaging members constituting the engaging means 7 are respectively laminated. As a material of the surface layer 11 and the back layer 12,
A material having cushioning property and heat resistance, for example, a felt cushion material such as polyester, or urethane foam is preferably used. As a method of integrating the respective layers of the sheet heating element 2, there is a method in which a hot-melt film is sandwiched between the layers and hot-pressing is performed, but of course, the method is not limited to this method.

On the upper surface of the sheet heating element 2, a finishing floor material 6 is laminated. The finishing floor material 6 is made of, for example, a heat-resistant wood flooring material 6a, and a surface engaging member having a male and female engagement with the surface engaging member of the planar heating element 2 is attached to the back surface thereof. I have.

As shown in FIG. 2, the surface engaging member is, for example, a surface fastener (hereinafter, referred to as a "female surface engaging member 7b") in which polypropylene is tricot-netted in a loop shape, and polypropylene. Fastener (hereinafter, referred to as "male surface engaging member 7a")
That. ). FIG. 2A shows a case in which a male surface engaging member 7a is attached to each of the front and back surfaces of the planar heating element 2 and a female surface engaging member 7b is attached to the back surface of the wooden flooring material 6a. FIG. 2B shows the opposite case, in which the wooden flooring material 6a is engaged with the upper surface of the planar heating element 2 by the male and female surface engaging members 7a and 7b. Is constituted. By attaching the same type (either male or female type) of surface engaging members to both the front and back surfaces of the sheet heating element 2 in this manner, the sheet heating element 2 can be used upside down.

As shown in FIG. 5, a spacer mat 13 having no built-in heater wire is laid around the sheet heating element 2. The material of the spacer mat 13 is made of, for example, a felt cushion material. The thickness of the spacer mat 13 is the same as that of the sheet heating element 2, and is laid on a portion of the base floor 14 where the sheet heating element 2 is not laid. The material 6a can be laid all over the room flush.

On the other hand, the terminal connection box 3 is shown in FIGS.
As shown in FIG. 2, a power input terminal connection box 4 connected to the power supply unit and a heater terminal connection box 5 electrically connected to the sheet heating element 2 are separately configured.

The housing 15 of the power input terminal connection box 4 has a flat shape having an appearance similar to a baseboard, and includes a rear cover 18 and a front cover 17 fixed to the rear cover 18 with screws 22 (FIG. 10). And a decorative plate 23 which is provided on the front surface of the front cover 17. As shown in FIG. 14, the rear cover 18 is attached along the front surface of the baseboard 26 fixed to the wall surface 25, but may be attached directly to the wall surface 25. As shown in FIG. 5, a wiring duct 27 having the same appearance as a skirting board is continuously provided on the side of the power supply input terminal connection box 4.
9 and a signal line 30 from the temperature controller 28 are introduced into the power input terminal connection box 4 through the wiring duct 27, and the introduced power input line and the signal line 30 are introduced.
Are electrically connected to a plurality of receiving blades 32 provided on the lower end surface of the housing 15 so as to be exposed. In FIG. 6, reference numeral 80 denotes a curtain plate hanging down from the lower end of the front cover 17 and covering the heater wire terminal connection box 5.

On the other hand, the heater terminal connection box 5 is connected near the end of one side of the sheet heating element 2. The housing 16 of the heater terminal connection box 5 is shown in FIGS.
As shown in the figure, similarly to the power supply input terminal connection box 4, it is formed in a flat shape, and the front cover 19 and the back cover 20 are screwed to each other. In the present embodiment, a rectangular projecting portion 2 a projecting from the vicinity of one side end of the sheet heating element 2 is sandwiched and fixed between the front cover 19 and the back cover 20. Each end of the heater wire 10 and the signal wire 30 from inside the body 2 is introduced into the housing 16 from the convex portion 2 a of the sheet heating element 2, and the terminal pin 31 protrudingly provided on the front end surface of the housing 16. (Metal pins).

Here, the terminal pins 31 of the heater terminal connection box 5 serving as the terminal portions 9 have a detachable structure that can be turned upside down with respect to the receiving blade 32 of the power input terminal connection box 4. In the embodiment shown in FIGS. 8 and 9, the terminal pins 31 are arranged in a horizontal line at the same pitch as the receiving blade 32, and the power supply line 29 and the signal line 30 (common to ground) require three poles. Therefore, the center terminal pin 31a is used for a common ground line, and the terminal pins 31b on both sides are set to 100V.
The terminal pins 31c for the line and for both sides are used for the signal line, and the arrangement of the terminal pins 31 does not change even when the heater terminal connection box 5 is turned upside down (180 ° inversion). As a result, the heater terminal connection box 5 can be connected to the power input terminal connection box 4 bidirectionally (180 ° inversion direction),
It is possible to cope with the case where the sheet heating element 2 is used upside down. The method of electrical connection between the boxes 4 and 5 is not limited to the embodiment of FIGS. 8 and 9, and the number, arrangement, and the like of the terminal pins 31 and the receiving blades 32 are not particularly limited. .

Further, the power supply input terminal connection box 4 and the heater terminal connection box 5 are detachably connected by a detachable connection portion 8. As shown in FIG. 8, the detachable connection portion 8 includes a pair of openings 36 provided on the left and right sides of the lower end surface of the housing 15 of the power input terminal connection box 4.
And a pair of screw holes 37 provided on both left and right sides of the housing 16 of the heater terminal connection box 5. The terminal pins 31 are inserted into the receiving blades 32, and the outside of the ribs 35. By screwing the fixing screw 38 into the screw hole 37 through the opening 36 of the rib 35, the boxes 4 and 5 can be detachably fixed using the fixing screw 38. Further, the detachable connection portion 8 is designed to be located above the wooden flooring material 6a (the state of FIG. 14), so that even after the wooden flooring material 6a is installed, the mounting and dismounting of the boxes 4 and 5 are performed. I can do it.

FIG. 7 shows an example of a floor heating system using a heat-sensitive heating wire. A power supply line 29 from a commercial power supply is connected via a switching element 40 of the temperature controller 28 to a heat-sensitive heating wire 41 built in the planar heating element 2, and a signal line 3 from the temperature controller 28.
Numeral 0 is connected to a temperature signal output circuit 42 built in the sheet heating element 2. The temperature controller 28 includes a switching element drive block 43, a signal selection processing block 44 for performing signal processing from the temperature signal output circuit 42, and a timer operation block 45. The temperature signal output circuit 42 includes an upper limit temperature signal output block 46, a reference voltage generation block 47, a voltage comparison block 48, and a temperature-voltage conversion block 49. 5 in FIG.
Reference numeral 0 denotes a sensor, 51 denotes a heating element (heater wire), 52 denotes a temperature fuse, 54 denotes a power supply line 29 for feed wiring, and 55 denotes a signal line for feed wiring.

The temperature control system is not particularly limited to the heat-sensitive heating wire system as shown in FIG.
For example, the present invention can be used for a system combining a heat sensing wire and a heating wire, a system combining a heating wire, a thermistor, and a thermostat.

Hereinafter, an embodiment of the sheet heating element 2 will be described.

[0021]

EXAMPLE 1 A felt cushion material made of polyester was laminated on both sides of a heat-sensitive heating wire wired at a pitch of 50 mm, and a tricot woven fabric made of polyester (thickness) was formed outside both felt cushion materials. 0.8
mm) are sequentially integrated to produce a sheet heating element 2 shown in FIG. 1, and a terminal connection box 3 is attached near an end of one side of the sheet heating element 2, and FIG. The planar heating device 1 shown was produced. (Example 2) A cushion material (thickness 2 mm) made of urethane foam was laminated on both sides of a heat-sensitive heating wire wired at a pitch of 50 mm on an aluminum foil (thickness 30 μm), and a polyester was formed on the outside of both cushion materials. A triangular woven fabric (thickness: 0.8 mm) was sequentially laminated to form a sheet heating element 2 having an aluminum foil 19 having a soaking action shown in FIG. The terminal connection box 3 was attached near the end of one side of the heating element 2 to produce the planar heating device 1 shown in FIG. (Comparative Example 1) A felt cushion material made of polyester was laminated below the heat-generating wires wired at a pitch of 50 mm, and an aluminum foil (30 μm) and a tricot woven fabric (thickness) made of polyester were formed above the heat-generating wires. 0.8mm)
The sheet heating element 2A shown in FIG. 16 is manufactured by integrating the layers sequentially stacked, and a terminal connection box 3 is attached near an end of one side of the sheet heating element 2A to obtain a surface heating element shown in FIG. The heating device 1 was manufactured. (Comparative Example 2) The terminal connection box 3 was attached to the center of one side of the planar heating element 2A produced in the same manner as in Comparative Example 1, to produce a planar heating apparatus 1A shown in FIG.

However, in order to perform floor heating economically, as shown in FIGS. 11 to 13, the heating area may be divided into a plurality of areas S1, S2... And individually heated. It is necessary to install the terminal connection box 3 avoiding projections such as the door 60 and the pillar 61.

First, in the planar heating apparatus 1 according to the first comparative example, the four-sided heating apparatus shown in FIGS. 11 (a), 12 (a), and (b) and FIG. In order to correspond to each pattern, two types of planar heating devices are required in advance, and these two types are shown in FIG.
It is necessary to select and perform the combination (a), (b) and (c) shown in (b), FIG. 12 (c) and FIG. 13 (b).

The planar heating apparatus 1A according to Comparative Example 2 (FIG. 1)
In FIG. 9), the terminal connection box 3 (FIGS. 11 (a), 12 (a) (b),
(A) is arranged at the center of one side of the planar heating element 1A, so that even if it can correspond to the construction pattern of FIGS. 12 (a) and 12 (b), FIG. FIG.
In some cases, the construction pattern shown in FIG.

On the other hand, in the first and second embodiments,
According to the planar heating device 1 of the present invention, the planar heating element 2 can be attached and installed irrespective of whether the surface heating element 2 is placed on either side of the front or back surface.
(A), (a), (b) of FIG. 12, and (a) of FIG. 13 can be respectively applied to the construction patterns, and (b), (c) of FIG. One type of the planar heating device 1 can also deal with the combinations (a), (b) and (c) shown in (b). In particular, since the terminal connection box 3 is connected near the end of one side of the sheet heating element 2, if the sheet heating element 2 is turned upside down, the terminal connection box 3 is connected.
Is greatly changed, and the terminal connection box 3 can be easily arranged by avoiding projections such as the door 60 at the corner of the wall surface and the pillar 61 at the center, and therefore, the mounting position of the terminal connection box 3 Is not limited to a place where the door 60 and the pillar 61 are not provided, and even if the type of the planar heating device 1 is reduced, it is possible to cope with various room shapes. In addition, the construction pattern and combination of the planar heating apparatus 1 are not limited to the embodiment of FIGS.

Further, as described above, the planar heating apparatus 1 of the present invention can be mounted and installed with an arbitrary surface facing up without any front / back relationship, so that the number and types of the planar heating apparatus 1 can be reduced. Can be performed easily and in a short time, and the cost of manufacturing can be reduced by minimizing the type of the planar heating device 1;
Further, the burden on the manufacturer can be greatly reduced.

As shown in FIG. 8, the terminal pins 31 of the heater terminal connection box 5 have a detachable structure which can be connected to the power input terminal connection box 4 in two directions. Even if the heater terminal connection box 5 is turned upside down due to the upside down of 2, both boxes 4,
5 connections are possible. In addition, since the power input terminal connection box 4 itself does not need to be turned upside down, FIG.
As shown in FIG. 14A or FIG. 14B, a large curved surface 70 or chamfer 71 can be provided at the front corner of the housing 15 of the power input terminal connection box 4. By the way, in the structure where the power input terminal connection box 4 is also installed upside down, it is necessary to make the housing 15 of the power input terminal connection box 4 a front and back symmetrical shape. However, it is not possible to provide a curved surface or a curved surface, and the external design restrictions are increased. However, in the present embodiment, such restrictions are eliminated, and a more curved design is possible. Further, since the curtain plate portion 80 is formed below the front cover 17 of the power input terminal connection box 4, the heater terminal connection box 5 can be hidden by the curtain plate portion 80.
In addition, since the power supply input terminal connection box 4 itself has an appearance similar to a baseboard, the appearance of the terminal connection box 3 is extremely good while having the structure in which the entire terminal connection box 3 is exposed in the room.

Also, since the detachable connection portion 8 between the power input terminal connection box 4 and the heater terminal connection box 5 is also exposed inside the room, after the wooden flooring material 6a is installed, as shown in FIGS. Then, by removing the decorative plate 23 and the screw 22 of the power input terminal connection box 4, the housing 1 of the power input terminal connection box 4 is removed.
5 can be removed and attached,
Since the power input terminal connection portion and the electric circuit portion inside the terminal connection box 3 can be exposed, even when a trouble such as disconnection occurs, inspection and repair can be performed without peeling the wooden flooring material 6a. Therefore, since there is no need for large-scale construction, the work time can be significantly reduced, and the work itself can be performed extremely easily.
It does not impose a heavy burden on the user and the inspection / repair company.

[0029]

As described above, the first aspect of the present invention comprises a sheet heating element and a terminal connection box for electrically connecting the sheet heating element. In the planar heating device in which the finishing floor material is laminated on the upper surface of the heating element, an engaging means capable of engaging with the back surface of the finishing floor material is attached to each of the front and back surfaces of the planar heating element, The surface heating element can be installed with any side up without any front-back relationship and the finished flooring can be engaged, so that construction can be performed easily and in a short time, and cost reduction during manufacturing And the burden on the manufacturer can be greatly reduced. In addition, since the mounting position of the terminal connection box can be easily changed by reversing the surface heating element, the mounting position of the terminal connection box is not limited by, for example, a protrusion such as a door or a pillar. In addition, it is possible to cope with a variety of room shapes while reducing the number of types and combinations of the planar heating devices, and it is possible to greatly improve workability.

According to a second aspect of the present invention, in addition to the effect of the first aspect, the terminal connection box is connected to at least a power supply side and a heater terminal connection box integrally connected to the planar heating element. Power supply terminal connection box, and the terminals between the boxes have a detachable structure that can be turned upside down, so even if the heater terminal connection box is turned upside down due to the upside down of the sheet heating element, the power supply The connection between the input terminal connection box and the heater terminal connection box becomes possible. At this time, since the power input terminal connection box itself does not need to be turned upside down, there is no need to make the outer periphery of the power input terminal connection box a front-back object shape.For example, a large chamfer or curved surface is formed at the front corner of the power input terminal connection box. This makes it possible to adopt a more curved design without restrictions on the external design.

According to a third aspect of the present invention, in addition to the effects of the second aspect, a detachable connection portion for detachably connecting the heater terminal connection box and the power input terminal connection box is provided. Since the detachable connection portion is arranged at a position higher than the finishing floor material, even if a trouble such as disconnection occurs after the finishing floor material is installed, the power input terminal is not removed without peeling the finishing floor material. By removing the connection box, inspection and repair of the internal electric circuit etc. can be easily done,
Therefore, since no large-scale construction is required, the work time can be greatly reduced, and the work itself can be performed extremely easily. As a result, no heavy burden is imposed on the user and the inspection / repair company. .

[Brief description of the drawings]

FIG. 1 is a side sectional view illustrating a planar heating element according to an example of an embodiment of the present invention.

FIGS. 2A and 2B are schematic cross-sectional views illustrating an example of an arrangement state of a surface engaging member according to the first embodiment.

FIG. 3A is a plan view of the planar heating device according to the first embodiment, and FIG.
Is a side view.

FIG. 4 is a side sectional view illustrating another embodiment of the sheet heating element.

FIG. 5 is a partially broken perspective view illustrating an installation state of the planar heating device according to the first embodiment.

FIG. 6 is a side sectional view illustrating an installation state of the planar heating device according to the first embodiment.

FIG. 7 is a block diagram illustrating a floor heating system using the heat-sensitive heat generating wire according to the first embodiment.

FIG. 8 is an exploded perspective view of the terminal connection box.

FIGS. 9A and 9B are a plan view and a side view of the heater terminal connection box of the above.

FIG. 10 is an exploded perspective view of the power supply input terminal connection box according to the third embodiment.

FIG. 11A is a plan view illustrating an example of a construction pattern of the planar heating device of the above, and FIG. 11B is an explanatory diagram of a combined state.

FIGS. 12A and 12B are plan views illustrating an example of a construction pattern of the planar heating device according to the first embodiment, and FIGS. It is.

FIG. 13A is a plan view illustrating an example of another construction pattern of the planar heating device of the above, and FIG. 13B is an explanatory diagram of a combined state. It is.

FIGS. 14 (a) and (b) are cross-sectional views showing a construction state of a terminal connection box.

FIG. 15 is an explanatory diagram when a part of the housing of the power supply input terminal connection box is removed.

FIG. 16 is a cross-sectional view illustrating a comparative example of a sheet heating element.

17A is a plan view illustrating a comparative example of a planar heating device, and FIG. 17B is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Planar heating apparatus 2 Planar heating element 3 Terminal connection box 4 Power input terminal connection box 5 Heater terminal connection box 6 Finishing floor material 7 Engaging means 8 Detachable connection part 9 Terminal part

Claims (3)

[Claims] 1. A planar heating device comprising a planar heating element and a terminal connection box for electrically connecting the planar heating element, wherein a finishing floor material is laminated on an upper surface of the planar heating element. 3. The planar heating apparatus according to claim 1, wherein engaging means capable of engaging with the back surface of the finished flooring material are respectively attached to the front and back surfaces of the planar heating element. 2. A heater terminal connection box, wherein the terminal connection box is integrally connected to at least the planar heating element;
The planar heating device according to claim 1, comprising a power supply input terminal connection box connected to the power supply side, and a terminal portion between the boxes has a detachable structure that can be turned upside down. 3. A detachable connection portion for detachably connecting the heater terminal connection box and the power supply input terminal connection box, wherein the detachable connection portion is arranged at a position higher than the finished floor material. The planar heating device according to claim 2, characterized in that: