JP2002235928A - Floor heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor heater which can efficiently heat the inside of a building and also whose wiring work can be performed simply. SOLUTION: In the floor heater, plural sheets of floor heating panels 20 with built-in electric heaters are arranged in parallel. The lead wire 25 of the electric heater of each floor heating panel 20 and the feed wires 24, and the feed wires 24 are connected severally with each other by connections 26. A floor heating panel generates heat by supplying each heater with power from the above feed wires 24. A wiring passage 23 extends in the direction where the above plural sheets of floor heating panels 20 are arranged in parallel and has an upper opening 23A. The passage 23 is arranged at the side 20A of one end of each floor heating panel 20 on the side where the above floor heating panels 20 are not arranged in parallel, and the above feed wire 24 and the above connection 26 are stored in the wiring passage 23, and the opening 23A of the wiring passage 23 is covered with a wiring passage cover 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric heating type floor heating apparatus for heating a building from the floor.

[0002]

2. Description of the Related Art In recent years, as a heating device in a building such as a hotel, a building, a house, etc., it is required that the inside of the room is not polluted, that there is no generation of mold and soda by dew condensation, the sensible temperature is high, and the heating cost can be reduced. Floor heating (including wall heating) devices have attracted attention because they can be used widely in rooms and the like without taking up space, and have come into general use.

[0003] Floor heating devices are roughly classified into an electric heating type and a hot water type. Except for heating a cold area or a building having a large floor area, the electric heating type is easy to construct, handle and operate. Floor heating devices are widely used.

A conventional floor heating device of this type has, for example, a configuration as shown in FIG. That is, a plurality of floor heating panels 1 and 2 each having a built-in electric heater (not shown) are arranged in parallel, and the floor heating panels 1 and 2 on the side where the floor heating panels 1 and 2 are not arranged in parallel are arranged. One end 1
A and 2A, connection boxes 1B and 1C and connection boxes 2B and 2C are provided at both corners in the direction in which the floor heating panels 1 and 2 are arranged in parallel. Further, in the floor heating panel between the connection boxes 1B and 1C of the floor heating panels 1 and 2 and between the connection boxes 2B and 2C, the feed wiring 3 and the feed ground wire 4 are built in by means such as through. .

[0005] The connection box 1B includes connection portions 5 and 5 for connecting a lead wire (not shown) of an electric heater of the floor heating panel 1 and a feed wiring 3, and aluminum foil incorporated in the floor heating panel 1. A connection part 6 for connecting a ground lead wire (not shown) drawn from a ground connection terminal attached to the heat equalizing plate to the feed ground wire 4 is housed. In the connection box 1C,
A connecting portion 7 for connecting the sending wirings 3 and a connecting portion 8 for connecting the sending ground wires 4 are housed. The connection box 2B is covered with a cover plate 9 and hidden and not shown,
A connecting portion for connecting the lead wire of the electric heater of the floor heating panel 2 and the two feed wires 3 collectively, and a ground lead wire and 2
A connection portion for connecting the feed earth wires 4 collectively is stored. The connection box 2C is connected to a connection portion 10 for connecting a power cable 12 drawn in from the outside through the feed wiring 3 and the bushing 11, and an earth wire 14 drawn in from the outside through the feed earth wire 4 and the bushing 11. The connection part 13 is stored. Each connection box 1B-2
The opening of C is covered with the cover plate 9 after the various connection processes are completed. The connection portions 5 and 6 housed in the connection box 1B and the connection portion housed in the connection box 2B prevent accidents such as poor connection and improve connection accuracy and safety. It is desirable that the floor heating panel be formed by connection processing in a factory beforehand. Thus,
The floor heating panel is configured to generate heat by supplying electric power from the feed wiring 3 to each electric heater.

[0006]

In a conventional floor heating apparatus, a connection box for accommodating a connection portion between a lead wire of an electric heater and a feed line is basically provided for each floor heating panel, and a connection box between the feed lines. Since it is necessary to provide two connection boxes, one for storing the connection part, the area of the non-heated part of each floor heating panel becomes large, and when the device is used, a place where the floor surface temperature is low occurs, and the floor surface becomes uniform temperature. However, there is a problem that the inside of the building cannot be efficiently heated.

Further, it is necessary to provide two connection boxes on the floor heating panel and to incorporate feed wiring in the panel between these connection boxes, which complicates the structure of the floor heating panel, increases the number of manufacturing steps and increases the floor. In addition to increasing the cost of the heating device, the connection space for the electric heater's lead wire and feed wiring is reduced, which reduces the workability of the connection process and the storage capacity of the connection part, and simplifies wiring work for the floor heating device. In addition, there was a problem that it could not be performed efficiently.

The present invention solves the above problems and provides a floor heating apparatus capable of efficiently heating the inside of a building and performing wiring work easily.

[0009]

According to a first aspect of the present invention, there is provided a floor heating apparatus in which a plurality of floor heating panels each having a built-in electric heater are arranged in parallel. The lead wire and the feed wiring of the electric heater of each floor heating panel, and the feed wiring are connected by a connection portion, and the floor heating panel is heated by supplying power to each electric heater from the feed wiring. In things
To one end side of each of the floor heating panels on the side where the floor heating panels are not arranged in parallel, extend along the direction in which the plurality of floor heating panels are arranged in parallel, and upward or sideways. A wiring passage having an opening is provided, and in the wiring passage,
The feed line and the connection portion are housed, and a wiring passage cover is placed over the opening of the wiring passage.

[0010] According to such a configuration, a connection portion for connecting the lead wire of the electric heater to the feed wiring, connecting the feed wirings, and a connection box for accommodating the feed wiring are provided in the floor heating panel. Because there is no heating area of each floor heating panel, the area of the heat generation area is widened, there is no place where the floor surface temperature is low when using the device, it is easy to heat the floor surface to a uniform temperature, and the building is heated efficiently. Will be able to

Further, since it is not necessary to incorporate a feeder wiring in the floor heating panel or to provide a connection box, the structure of the floor heating panel is simplified, the number of manufacturing steps is reduced, and the cost of the floor heating apparatus is reduced. Can be lowered.

Further, since the feed wiring is routed in a wiring passage having an opening at an upper side or a side, the wiring work is facilitated, and the wiring passage extends along the direction in which the floor heating panels are arranged in parallel. As a result, the connection space between the lead wires of the electric heater, the feed wires, and the feed wires is widened, and the workability of the connection process and the storability of the connection portion are improved. As a result, the floor heating device Wiring work can be performed easily and efficiently, and the construction period can be shortened and the construction cost can be reduced.

According to a second aspect of the present invention, in the floor heating apparatus according to the first aspect, a drainage member for preventing water from entering the wiring passage is mounted in the wiring passage. It is.

According to this configuration, even if water is applied to the upper surface of the wiring passage cover that covers the opening of the wiring passage, the water hardly penetrates into the wiring passage from the longitudinal direction, and the electrical insulation performance of the connection portion is reduced. This is preferable because it is possible to prevent the floor heating device from lowering and to improve the safety and maintainability of the floor heating device.

According to a third aspect of the present invention, in the floor heating apparatus according to the second aspect, a water seal member is provided between the drainage member mounted in the wiring passage and the wiring passage cover. It is interposed.

According to such a configuration, even if water is splashed on the upper surface of the wiring passage cover, it can be prevented from sneaking around the back surface of the wiring passage cover and invading the wiring passage. This is preferable because it is possible to further suppress a decrease in performance and to further enhance the safety, reliability, and maintenance of the floor heating device.

[0017]

Next, an embodiment of the present invention will be described in detail with reference to FIG. In the floor heating device of the present invention, a plurality of floor heating panels 20 each having a built-in electric heater (not shown) are placed on a plywood 35 disposed on a heat insulating plate 22 disposed between joists 21. They are arranged in parallel. A wiring extending along the direction in which the plurality of floor heating panels 20 are arranged in parallel is provided at one end side 20A of each of the floor heating panels 20 on the side where the floor heating panels 20 are not arranged in parallel. A passage 23 is provided. A frame member (small joist) 23B is arranged at a predetermined interval from one end side 20A of the floor heating panel 20 to the side so that the wiring passage 23 has an opening 23A above, and a bottom plate 23C Is formed from below. Although not shown, the wiring passage 23 is not combined with the upper side but has an opening 23A on the side (the side opposite to the side where the floor heating panel 20 is disposed), for example, by appropriately combining a frame member 23B or the like. It may be formed by forming.

In the wiring passage 23, each floor heating panel 20
The two feed wires 24 for electrically connecting the electric heaters are wired and housed. Further, the lead wire 25 of the electric heater of each floor heating panel 20 (including not only the lead wire connected to the heating wire terminal of the electric heater but also the heating wire terminal itself), the sending wiring 24, and the sending wiring 24 Are collectively connected.

The connecting portion 26 is, as shown in the figure, two terminals of the feed wiring 24 and the lead wire 25 of the electric heater are aligned in one direction and overlapped, and a metal crimping sleeve is fitted from the outside thereof and crimped and connected. It is formed by putting a cap and wrapping a vinyl insulating tape over it. The connecting portion 26 is connected to the feed wire 24 and the lead 2
5 may be formed by connecting them with a Y or T branch connector or the like.

In the wiring passage 23, in addition to the feed wiring 24 and the connecting portion 26, each floor heating panel 20
Also, a connection portion 29 for connecting a ground lead wire 27 drawn from a ground connection terminal attached to a heat equalizing plate made of aluminum foil or the like and a feed ground wire 28 is housed therein. The connecting portion 29 is formed by a connection process in the same manner as the connecting portion 26 in the drawing.

The two sending wires 24 and the sending ground wire 2
In order to facilitate wiring and storage in the wiring passage 23, the wires 8 are combined by twisting, arranging them in parallel, and the like, and are combined as a connection cable 30.

A power cable (not shown) is connected to the end of the transmission line 24 housed at one end in the longitudinal direction of the wiring passage 23 among the plurality of transmission lines 24 connected by the connection portion 26. Of the plurality of feed earth wires 28 connected at the connection portion 29,
A grounding wire (not shown) is connected to the end of the feed grounding wire 28 housed at one end in the longitudinal direction of No. 3.

Reference numeral 31 denotes an outlet of an electric heater lead wire 25 and a ground lead wire 27 provided on one end side 20A side of each floor heating panel 20 so as to communicate with the wiring passage 23; A connection cable 30 which covers the opening 23A of the wiring passage 23 to prevent water, dust and the like from entering the wiring passage 23, and has a built-in feed line 24 and a feed earth line 28; 26 is a wiring passage cover that protects 26.

The floor heating device of the present invention is configured as described above. Then, pass the power cable and send the wiring 2
By supplying electric power from 4 to the electric heater of each floor heating panel 20, the floor heating panel 20 generates heat and heats the inside of the building.

In the floor heating device of the present invention, the feed wiring 24 and the connecting portion 26 are housed in the wiring passage 23,
The area of the heat generating portion of each floor heating panel 20 is increased, and when the heating device is used, the floor heating panel temperature, that is, a location where the floor surface temperature is low does not occur, and the floor surface can be heated to a uniform temperature to heat the floor. It will be easier.

The connection section 2 is provided in the floor heating panel 20.
Since there is no need to provide a connection box for accommodating 6, the structure of the floor heating panel 20 is simplified.

Further, since the feed wiring 24 is wired in the wiring passage 23 having the opening 23A at the upper side or the side, the wiring work is facilitated, and the wiring passage 23 is arranged in parallel with the floor heating panel 20. The connection space between the lead wire 25 of the electric heater, the feed wire 24, and the feed wire 24 is widened, and the workability of the connection process and the storability of the connection portion 26 are increased. As a result, the wiring work of the floor heating device can be performed simply and efficiently.

FIGS. 2A and 2B show a draining member 33 mounted in the wiring passage 23 in the vicinity of one end of the wiring passage 23 in the longitudinal direction. This drainer 33 is
It is formed to be slightly longer than the inner width of the wiring passage 23 and is made of rubber or plastic material having water resistance and elasticity.
In the drawing, the wiring is mounted so that both ends are slightly bent from the position where the lead wire 25 of the electric heater and the outlet 31 of the ground lead wire 27 are provided to a position slightly outside in the longitudinal direction. It functions to prevent water from entering the inside 23. Although not shown, the draining member 33 is also mounted in a passage near the other longitudinal end of the wiring passage 23 in order to more reliably prevent water from entering the wiring passage 23. Further, the drainer 33 may be mounted at an appropriate position in the wiring passage 23 at an intermediate position in the longitudinal direction.

As described above, the draining member 33 is connected to the wiring passage 2.
3, the opening 23A of the wiring passage 23
Even if water is applied to the upper surface of the wiring passage cover 32 covered with the wiring passage 23, it is difficult for the water to penetrate into the passage from the longitudinal direction of the wiring passage 23, and the electrical insulation performance of the connection portion 26 can be prevented from lowering. preferable.

As shown in FIGS. 3 (a) and 3 (b),
This is a water seal member interposed between the draining member 33 mounted in the wiring passage 23 and the wiring passage cover 32. This water seal member 34 is formed by bending a plastic film piece such as polypropylene into a U-shape as shown in FIG. The cover 32 is attached to the cover 32 by bonding to the lower surface of the cover 32.

If the water sealing member 34 is interposed between the draining member 33 and the wiring passage cover 32, there is no gap between them and even if water is applied to the upper surface of the wiring passage cover 32, 32 can be prevented from entering the wiring passage 23 by wrapping around the back surface of the connecting portion 32, and it is possible to further suppress the deterioration of the electrical insulation performance of the connecting portion 26.

[0032]

As described above, in the floor heating apparatus of the present invention, a plurality of floor heating panels each having a built-in electric heater are arranged in parallel, and the lead wire and feed wiring of the electric heater of each floor heating panel are provided. And the feed wires are connected to each other by a connecting portion, and by supplying power to each electric heater from the feed wires, the floor heating panel is heated, and the floor heating panels are not arranged in parallel. A wiring passage extending along a direction in which the plurality of floor heating panels are arranged in parallel and having an opening upward or laterally is provided on one side of one end of each floor heating panel on the side. In the wiring passage, the feed wiring and the connection portion are accommodated, and the opening of the wiring passage is covered with the wiring passage cover, so that the area of the heat generating portion of each floor heating panel is increased, and the floor surface is used when the apparatus is used. Low temperature It does not occur, it becomes easy to generate heat on the floor uniform temperature can be heated efficiently in a building.

Further, the structure of the floor heating panel is simplified,
The number of manufacturing steps is reduced, and the cost of the floor heating device can be reduced.

In addition to facilitating the wiring work of the feed wiring, the workability of the connection process between the lead wire of the electric heater and the feed wiring, and the connection between the feed wirings and the storability of the connection portion are improved, so that the floor heating device is provided. Wiring work can be performed easily and efficiently, and the construction period can be shortened and the construction cost can be reduced.

In addition, if a drainage member for preventing water from entering the wiring passage is mounted in the wiring passage, even if water is applied to the upper surface of the wiring passage cover that covers the opening of the wiring passage, the water is not removed. This is preferable because it is difficult to penetrate into the wiring passage from the longitudinal direction, and it is possible to prevent the electrical insulation performance of the connection portion from being lowered, and to enhance the safety and maintainability of the floor heating device.

Further, if a water seal member is interposed between the drainage member mounted in the wiring passage and the wiring passage cover, even if water is applied to the upper surface of the wiring passage cover,
This can be prevented from wrapping around the back surface of the wiring passage cover and entering into the wiring passage, and it is possible to further suppress the deterioration of the electrical insulation performance of the connection portion, thereby improving the safety, reliability and reliability of the floor heating device. This is preferable because maintenance can be further enhanced.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a main configuration of an embodiment of a floor heating device according to the present invention.

FIGS. 2A and 2B show a state in which a drainer is mounted in a passage near one end of the wiring passage shown in FIG. 1, wherein FIG. 2A is a plan view and FIG.

3A and 3B show a state in which a water seal member is interposed between a drainer and a wiring passage cover shown in FIG. 2, wherein FIG. 3A is a longitudinal sectional view and FIG. 3B is a side view.

FIG. 4 is a schematic perspective view showing a part of a conventional floor heating device.

[Description of Signs] 20 Floor heating panel 20A One end side 21 Joist 22 Insulating plate 23 Wire passage 23A Opening 23B Frame material (small joist) 23C Bottom plate 24 Feeding wire 25 Electrical heater lead wire 26 Connection 27 Earth Lead wire 28 Feed earth wire 29 Connecting part 30 Connection cable 31 Outlet 32 Wiring passage cover 33 Drainer member 34 Water seal member 35 Plywood

Claims (3)

[Claims] A plurality of floor heating panels each having a built-in electric heater are arranged in parallel, and a lead wire and a feed wiring of the electric heater of each floor heating panel, and the feed wiring are connected to each other by a connection portion; In the floor heating device configured to generate heat from the floor heating panel by supplying power to each electric heater from the feed wiring, one end side of each floor heating panel on which the floor heating panel is not arranged in parallel A wiring passage extending along a direction in which the plurality of floor heating panels are arranged in parallel and having an opening at an upper side or a side is provided, and the feed wiring and the connection portion are provided in the wiring passage. Wherein the wiring passage cover is placed over the opening of the wiring passage. 2. The floor heating apparatus according to claim 1, wherein a drain member for preventing water from entering the wiring passage is mounted in the wiring passage. 3. The floor heating device according to claim 2, wherein a water seal member is interposed between the drainage member mounted in the wiring passage and the wiring passage cover.