JP2004158197A - Plane heating element, installation structure and execution method of plane heating element, and installation cap for plane heating element - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plane heating element that does not require trouble, time, and material for urethane filling or the like, and that is of low cost without requiring time and trouble, and effective in maintenance of airtightness, and its installation structure and an execution method, as well as an installation cap for plane heating element. <P>SOLUTION: In the plane heating element, a lead wire 11 which is connected to the electric cable 6 from the plane heating sheet 3 extends from the rear face side of the heating sheet 3 in the direction of standing up and fixed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sheet heating element for floor heating laid on a floor base material, an attachment structure and an attachment method of the sheet heating element, and an attachment cap for the sheet heating element.
[0002]
[Prior art]
Electric floor heating may be incorporated in recent buildings. In this electric floor heating, a sheet heating element is laid between a decorative material forming a floor and a floor base material, and heating is performed by supplying electricity to the sheet heating element.
[0003]
The sheet heating element is provided with a pair of electrode plates for supplying electricity to the sheet-shaped heating element, and leads are drawn from each of the electrode plates, and the drawn leads are connected to a power supply. .
[0004]
The bases of the heating element, the pair of electrode plates and the pair of lead wires are covered with an insulator, and the lead wires extend from the insulator. An opening for passing a lead wire is formed in the floor base material, and the lead wire is connected to a power supply wired below the floor base material. Each electrode plate is soldered at the base of the lead wire in order to prevent the lead wire from coming off or breaking, and the lead wire itself has a thickness.
[0005]
For this reason, the opening of the floor base material has a diameter capable of absorbing the swelling so that the surface of the floor does not swell.
[0006]
As a sheet heating element, “Self-temperature-controlling sheet heating element” in Patent Document 1 is disclosed.
[0007]
[Patent Document 1]
JP-A-10-321346 [0008]
[Problems to be solved by the invention]
However, the conventional electric floor heating mounting structure has an advantage that it is not necessary to provide a wiring space on the floor of the floor base material, but there is a problem that airtightness is reduced because the opening is provided in the floor base material. .
[0009]
Therefore, in order to fill the openings formed in the floor base material, a urethane filler is injected, but this filling work requires not only labor and equipment, but also takes time to cure the urethane resin, and There is a problem that does not progress.
[0010]
Also, when the sheet heating element is attached to the floor base material, the sheet heating element is usually wound in a roll shape. Lumber and floor noise. If the sheet heating element is pulled without being fixed in order to eliminate the winding habit, wrinkles, or distortion of the sheet heating element, the sheet heating element moves, and it takes time to perform positioning and fixing. For this reason, usually, it is necessary to firmly fix the sheet heating element with a gum tape or a double-sided tape.
[0011]
However, when a sheet-shaped heating element with a curl is fixed in parallel with a gum tape or double-sided tape, not only the both ends and the center in the longitudinal direction are fixed, but also the thickness of the tape is absorbed. And there is a problem that it takes a lot of work.
[0012]
The present invention has been made in view of such a problem, and does not require labor and time and equipment such as urethane filling, is inexpensive in a short time, has low cost, and has airtightness. An object of the present invention is to provide a planar heating element having a high maintenance effect, a mounting structure thereof, a construction method, and a planar heating element mounting cap.
[0013]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the sheet heating element of the present application, a lead wire connected from a sheet-shaped heating element to a power source extends in a direction rising from one of the front and back surfaces of the heating element and is fixed. It is characterized by.
[0014]
The mounting structure for a planar heating element according to claim 2 of the present application is the mounting structure for a planar heating element according to claim 1, wherein a root portion of the lead wire is fixed by a resin fitting member. The fitting member is fitted in the opening of the floor base material.
[0015]
The mounting structure for a planar heating element according to claim 3 of the present application is the mounting structure for a planar heating element according to claim 2, wherein the fitting member is a cap having an insertion opening through which the lead wire passes. Features.
[0016]
The sheet heating element according to claim 4 of the present application is such that a lead wire connected to a power supply from a sheet-shaped heating element extends in a direction rising from one of the front and back surfaces of the heating element, and a root portion of the lead wire is It is characterized by being fixed by a resin fitting member fitted into the opening of the floor base material.
[0017]
The mounting structure for a planar heating element according to claim 5 of the present application is the mounting structure for a planar heating element according to claim 4, wherein the resin-made fitting member fits into an opening of the floor base material. It is characterized by having.
[0018]
According to a sixth aspect of the present invention, in the mounting structure of a planar heating element, a planar heating element is laid on a floor base material, and a lead wire extending from an electrode plate of the planar heating element is inserted into an opening of the floor base material. A mounting structure for a planar heating element connected to a power supply, wherein a cap is fitted into an opening of the floor base material, an insertion opening is formed in the cap, and the lead wire is inserted into the insertion opening. It is characterized by being inserted and connected to the power supply.
[0019]
According to a method of constructing a sheet heating element according to claim 7 of the present application, a sheet heating element is laid on a floor base material, and a lead wire extending from an electrode plate of the sheet heating element is inserted into an opening of the floor base material. A method of attaching a planar heating element connected to a power supply, wherein a cap is fitted into an opening of the floor base material, an insertion opening is formed in the cap, and the lead wire is inserted into the insertion opening. It is characterized by being inserted and connected to the power supply.
[0020]
According to a method of constructing a planar heating element according to claim 8 of the present application, a lead wire connected to a power source from a sheet-shaped heating element extends in a direction rising from one of the front and back surfaces of the heating element. After using a sheet heating element whose root portion is fixed by a resin fitting member and fitting the resin fitting member into the opening of the underfloor material, the lead of the sheet heating element is used. It is characterized in that it is laid in such a manner that the side opposite to the end where the line is formed is attracted in the developing direction.
[0021]
The mounting cap for a planar heating element according to claim 9 of the present application can be fitted into an opening for energization provided in a floor base material, and has a recess capable of accommodating a bulge of an electrode of the planar heating element. A fitting portion, an insertion opening through which a lead wire can be inserted is formed in the fitting portion, and a flange portion extending along the floor base material is formed in an upper edge portion of the fitting portion. .
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a planar heating element, a mounting structure of the planar heating element, a construction method, and a planar heating element mounting cap according to an embodiment of the present invention will be described with reference to the drawings.
[0023]
FIG. 4 shows an indoor configuration of a building. In FIG. 4, reference numeral 7 denotes a large scale. As shown in FIG. 4 or 5, the floor base material 2 is fixed on the large scale 7 via the joist 1. A heating sheet 3 as a sheet-like heating element having a sheet shape is laid. The heat generating sheet 3 is preferably made of a PTC heater capable of self-temperature control. The heat generating sheet 3 is connected to an electric wire 6 extending from a lower side of the floor base material 2 to the controller 5, and is connected to a power source. As shown in FIG. 5, the joist 1 is fixedly supported by a large pulling 7, and the large pulling 7 is fixedly supported by a bundle 8. Reference numeral 9 denotes a heat insulating material, which is provided between the joists 1.
[0024]
The floor covering 2 is made of plywood or the like, and has a plurality of openings 10 through which the electric wires 6 pass from below the floor covering 2 as shown in FIG.
[0025]
As shown in FIG. 1A, a lead wire 11 connected to the electric wire 6 extends on the back surface of the heat generating sheet 3, and a root portion of the lead wire 11 is fixed by a fitting member 12 made of a resin material. Have been. The fitting member 12 is formed in a shape that fits into the opening 10 of the floor substrate 2. The resin forming the fitting member 12 for fixing the root portion 11A of the lead wire 11 is made of a hot-melt resin having a hot-melt property, and is made of, for example, urethane resin, synthetic rubber, soft polyethylene or the like having elasticity. May be. When fitted into the opening 10, the opening 10 is closed and the lead wire 11 is held so as to be tightened. The outer peripheral portion of the fitting member 12 is fitted into the opening 10 of the floor base material 2 and closes the opening 10.
[0026]
As shown in FIG. 6, the heat generating sheet 3 has a narrow rectangular shape, and a lead wire 11 extends to the back surface of one end. Two electric wires are covered with vinyl and passed through the inside of the lead wire 11, are bundled into one, and have a single appearance, thus improving workability. As shown in FIG. 7, the heat generating sheet 3 is formed by bonding three layers of insulating and waterproof protective films 13 to 15, and a conductive semiconductor ink 16 is applied to the inner surface of the lower film 15. A plurality of sets of a pair of electrode portions 17 to which an alternating current is supplied are provided on both side edges of the semiconductor ink 16 so that a layer of the semiconductor ink 16 generates heat when a current flows between the pair of electrode portions 17. Has become. On the layer of the semiconductor ink 16, a film 14 for forming an intermediate layer is placed. An aluminum foil 18 for uniformly dispersing heat is adhered onto the intermediate layer film 14. An upper film 15 is adhered on the intermediate film 14.
[0027]
The pair of electrode portions 17 is connected to an electrode plate 19 housed inside one end of the heat generating sheet 3, and the lead wire 11 extends from one side of the electrode plate 19. The lead wire 11 is firmly soldered so that it does not come off or break even if a tensile force is applied during the work, and is attached so that the heat generating sheet 3 does not bulge as much as possible.
[0028]
When the heat generating sheet 3 is attached to the floor base material 2, an opening 10 is formed in the floor base material 2 in advance at a position where the lead wire 11 is located, and the electric wire 6 is placed below the floor base material 2 where the opening 10 is opened. Lead to. Next, the lead wire 11 of the heat generating sheet 3 is inserted into the opening 10, and the heat generating sheet 3 is laid so as to cover the opening 10 with the fitting member 12. Thereby, the laying of the heat generating sheet 3 is completed and the opening 10 is closed, so that the airtightness of the floor base material 2 is ensured, and it is not necessary to fill the opening 10 with urethane resin or the like as in the related art. Thus, the construction time and labor are greatly improved, and the cost can be reduced.
[0029]
When the heat generating sheet 3 is installed, a lead wire 11 connected to a power supply extends in a direction rising from the back surface of the heat generating sheet 2, and a root portion of the lead wire 11 is fixed by a fitting member 12 made of resin. Since the fitting member 12 is fitted into the opening 10 of the floor base material 2, the positioning of the heat generating sheet 3 can be easily performed.
[0030]
As a result, the end of the heat generating sheet 3 on the side of the lead wire 11 is fixed to the floor base material 2, so that when the heat generating sheet 3 is pulled so as to be spread, the heat generating sheet 3 is flattened and wrinkled or wound. Problems such as habits are eliminated. Therefore, even when a plurality of heat generating sheets 3 are laid out in parallel, it is not necessary to fix the heat generating sheets 3 with tape or the like.
[0031]
In addition, the opening 10 and the fitting member 12 of the floor base material 2 have a circular shape, and the angle of the heat generating sheet 3 can be changed by rotating the heat generating sheet 3 about the opening 10, so that a plurality of heat Even when the sheets 3 are made parallel, it is easy to make the angles uniform, and the work becomes easier.
[0032]
Note that the meaning of the lead wire 11 rising from the heat generating sheet 3 includes not only extending from the rear surface of the heat generating sheet 3 in a right angle direction but also extending in an inclined manner.
[0033]
FIG. 9 shows this state. When the lead wire 11 of the fitting portion 12 is raised from the heat generating sheet 3, the angle of the lead wire 11 is inclined with respect to the vertical direction, or the lead wire 11 is curved. ing.
[0034]
Thereby, when connecting the lead wire 11 to the electric wire or when connecting the lead wire 11 to the collecting box B, the lead wire 11 is easily bent. In this case, the angle at which the lead wire 11 protrudes from the fitting portion 12 may be, for example, an angle of 0 ° to 45 ° with respect to a direction perpendicular to the surface of the heat generating sheet 3.
[0035]
As shown in FIG. 8, the lead wire 11 is formed by covering two lead wires 11A and 11B with a coating tube 11C, and is formed so as to appear as a single wire. As shown in FIG. 9, the lead wires 11 of the plurality of heat generating sheets 3 are guided below the floor base material 2 through the fitting members 12 fitted in the openings 10, and as shown in FIG. Connected to Box B. The electric wire 6 extending from the collecting box B is connected to the controller 5 along the side wall. The collecting box B is usually provided under the floor, and is provided below the controller 5.
[0036]
When the lead wire 11 is connected to the collective box B, an inclination angle corresponding to each of the short (close) lead wire 11 and the long (far) lead wire 11 is provided depending on the distance between the heat generation sheet 3 and the collective box B. It is also possible to make it easier to connect. That is, the lead held by the fitting member 12 according to the distance between the position of the base portion of each lead 11 and the arrangement position of the collecting box B so that the lead 11 can be guided under the floor without difficulty. If the wire 11 is inclined, even if the curvature of the portion where the lead wire 11 is bent becomes large when the lead wire 11 is stretched around, the root portion of the lead wire 11 is pulled in an unreasonable state and the coated tube 11C comes off. Can be prevented.
[0037]
FIG. 1B shows a modification of FIG. 1, in which the root of a lead wire 11 ′ connected to an electrode plate 19 ′ is fixed to the back side of a heat generating sheet 3 ′ by a resin portion 23. . This resin portion 23 is made of the same material as the fitting member 12 of FIG. A planar heating element mounting cap (hereinafter, referred to as a cap) 22 is fitted into the opening 10 of the floor base material 2, and FIG. 1C shows a planar shape of the cap 22. The lead wire 11 is passed through the insertion opening 25 of the cap 22. The lead wire 11 ′ is formed by bundling the lead wires 11 ′ from the plurality of heat generating sheets 3 ′ into one piece from the middle and pulling the wire 11 ′ to the wall at one place to bind it to the electric wire 6 extending from the controller 5 using a connection member such as a crimp terminal. . The connection member is not limited to the crimp terminal but may be a connector or another member, as long as the lead wire 11 ′ and the electric wire 6 can be connected.
[0038]
The cap 22 can be fitted into the energizing opening 10 provided in the floor base material 2, and has a dish-shaped cylindrical outer peripheral portion 24 having a recess capable of storing a swelling of the resin portion 23 of the heat generating sheet 3. Have. An insertion opening 25 through which a lead wire 11 ′ extending from the electrode plate 23 can be inserted is formed at the bottom of the fitting portion 24. A flange portion 26 extending along the floor base material 2 is formed at an upper edge portion of the fitting portion 24. The thickness of the flange portion 26 is thinner than the thickness of the heat generating sheet 3. For example, the height of the heat generating sheet 3 does not change much even when the heat generating sheet 3 is laid on the floor base material 2. The thickness is about 0.1 to 0.3 mm, so that it is not necessary to form a concave portion for absorbing the thickness of the flange portion 26 on the surface of the floor base material 2.
[0039]
FIG. 2 shows another embodiment of the present invention. In this embodiment, a cap 22 shown in FIG. . As shown in FIG. 2, the lead wire 11 ′ extends from the end of the heat generating sheet 3 ′ to the outside of the sheet, and then passes through the insertion opening 25 of the cap 22 as a fitting member.
[0040]
When laying the heat generating sheet 3 ′ using the cap 22, the heat generating sheet 3 ′ is laid on the floor base material 2 so that the lead wire 11 ′ is directed toward the opening 10, and is fixed with double-sided tape. . At this time, the lead wire 11 'extending from the heat generating sheet 3' is passed through the insertion opening 25 of the cap 22, the lead wire 11 'is connected to the electric wire 6, and the cap 22 is fitted into the opening 10. After fixing the heat generating sheet 3 ′, the floor decorative material is laid on the heat generating sheet 3 ′, and nails are fixed to the floor decorative material along the joists 1.
[0041]
According to such a method, the construction of the heat generating sheet 3 is completed in a short time with a simple device such as the cap 22, so that time and labor are not required, and the cost is low.
[0042]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the mounting structure of a planar heating element, the construction method, and the planar heating element mounting cap according to the present invention, no labor, time and equipment such as urethane filling are required, and labor is reduced in a short time and low cost. And the effect of maintaining airtightness can be enhanced.
[Brief description of the drawings]
FIG. 1A is a cross-sectional view of a method for applying a sheet heating element according to a first embodiment of the present invention, FIG. 1B is a modified example of the first embodiment, and FIG. It is a top view of a cap.
FIG. 2 is a sectional view of a method for constructing a heating element according to a second embodiment of the present invention.
FIG. 3 is a plan view showing a state in which a double-sided tape is stuck on a floor base material provided with an opening and a heat generation sheet is fixed.
FIG. 4 is an explanatory diagram of a state in which a heating sheet is laid on a floor base material.
FIG. 5 is a cross-sectional view showing a state in which a floor base material is mounted on a joist.
FIG. 6 is a perspective view of a heating sheet as a sheet heating element.
FIG. 7 is a partially exploded perspective view showing a layer configuration of the heat generation sheet of FIG. 6;
FIG. 8 is a partial perspective view showing a configuration of a lead wire connected to a heat generating sheet.
FIG. 9 is a partial cross-sectional view showing an upright state in which a lead wire extending from a fitting portion of the heat generating sheet extends obliquely.
FIG. 10 is a schematic diagram showing a state in which lead wires of a plurality of heat generating sheets are connected to a collective box.
[Explanation of symbols]
1 joist 2 floor base material 3 heating sheet (planar heating element)
Reference Signs List 5 Controller 6 Electric wire 7 Large pull 8 Bundle 9 Insulation material 10 Opening 11 Lead wire 13-15 Insulating waterproof protection film 16 Semiconductor ink 17 Aluminum foil 19 Electrode plate 22 Planar heating element mounting cap 23 Resin part 24 Outer part 25 layer Through opening 26 Flange

Claims (9)

A sheet heating element, wherein a lead wire connected from a sheet heating element to a power source extends in a direction rising from one of the front and back surfaces of the heating element and is fixed. The mounting structure for a planar heating element according to claim 1, wherein a root portion of the lead wire is fixed by a resin fitting member, and the fitting member is fitted into an opening of the underfloor material. A mounting structure for a planar heating element, characterized in that: The mounting structure for a planar heating element according to claim 2, wherein the fitting member is a cap having an insertion opening through which the lead wire passes. A lead wire connected to a power supply from the sheet-like heating element extends in a direction rising from one of the front and back surfaces of the heating element, and a base portion of the lead wire is fitted with an opening of the underfloor material. A planar heating element fixed by a fitting member of (1). The mounting structure for a planar heating element according to claim 4, wherein the fitting member made of resin is fitted in an opening of the floor base material. A surface heating element is laid on a floor base material, and a lead wire extending from an electrode plate of the surface heating element is inserted into an opening of the floor base material to connect to a power supply. hand,
A planar heating element, wherein a cap is fitted in an opening of the floor base material, an insertion opening is formed in the cap, and the lead wire is inserted into the insertion opening and connected to the power source. Mounting structure. A sheet heating element is laid on a floor base material, a lead wire extending from an electrode plate of the sheet heating element is inserted into an opening of the floor base material, and the sheet heating element is connected to a power source. hand,
A planar heating element, wherein a cap is fitted into an opening of the floor base material, an insertion opening is formed in the cap, and the lead wire is inserted into the insertion opening and connected to the power supply. Construction method. A surface on which a lead wire connected to a power source from a sheet-like heating element extends in a direction rising from one of the front and back surfaces of the heating element, and a root portion of the lead wire is fixed by a resin fitting member. After the resin-made fitting member is fitted into the opening of the underfloor material using a flat heating element, the sheet heating element is expanded in the direction of developing the opposite side of the end where the lead wire is formed. A construction method of a sheet heating element characterized by being laid by attracting. A fitting portion having a depression that can be fitted into the opening for energization provided in the floor base material and that can accommodate the swelling of the electrode of the planar heating element is provided, and a lead wire can be inserted through the fitting portion. A mounting cap for a planar heating element, wherein an insertion opening is formed, and a flange extending along the floor base material is formed at an upper edge of the fitting portion.

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