JPH1163532A - Heat-accumulative floor heating unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a panel only one sheet from the floor, and stick heat accumulating material to the rear of the floor panel, by fixing frames, where heat generators, heat accumulating material, etc., are stacked, one piece, two pieces, or more to the rear of one sheet of floor panel. SOLUTION: The floor is made by arranging a plurality of sheets side by side as for floor panels, and executing flooring 4 thereon, and tow pieces each of frames 5 are fixed apart to the rear of each floor 2. Inside each frame 5, heat insulating material 6, first heat accumulating material 7, a heater 8, and a second heat accumulating material 7 are stacked in order from on the bottom plate. Hereby, the floor panel can be held up, removing only one sheet from the floor, so the work at maintenance of a wiring cable becomes easy, and also since the heater and the heat accumulating material can be stacked practically without space to the rear of the floor panel, such a fear as to drop the efficiency in heating vanishes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerative floor heating unit for heating a building from under the floor.

[0002]

2. Description of the Related Art In a floor heating apparatus, a heating element such as a heater is arranged below a floor material to heat the room from under the floor.
In addition, the regenerative floor heating system is a floor heating system that stores heat of the heating element in the heat storage material at night and radiates it during the day. This has the advantage that it can be achieved.
As such a regenerative floor heating device, there are construction methods such as a concrete burying construction method, a joist construction method, and a free access floor method. Of these, the free access floor method is used for OA (Office Automation) floors and the like, and a floor panel having a wiring space such as a hollow portion is supported from below by an adjuster, so that the floor panel wiring system can be used. Power cables and network cables can be laid in the gaps.

[0003] An example of a conventional configuration of the regenerative floor heating device using the free access floor system will be described with reference to FIG. This regenerative floor heating device has a heat insulating material 6, a first heat storing material 7, and a heater 8 inside a frame body 5 obtained by bending a metal plate into a gutter shape.
Heat storage type floor heating unit 1 in which heat storage material 7 and second heat storage material 7 are stacked
Are fixed to the back surfaces of the plurality of floor panels 2 supported by the adjusters 3. The regenerative floor heating unit 1 energizes the heater 8 at night, temporarily stores the heat generated from the heater 8 in the upper and lower heat storage materials 7, and gradually releases the heat from the heat storage material 7 throughout the day. By dissipating heat into the room through the, floor heating can be performed using a cheap electricity rate at night. Insulation material 6
Is for preventing the heat from the heater 8 and the heat storage material 7 from escaping below the floor, thereby efficiently heating the room.

[0004] In a regenerative floor heating system using a free access floor system, as shown in FIG.
A heat storage type floor heating unit 1 in which a heat insulating material 6, a first heat storage material 7, a heater 8 and a second heat storage material 7 are laminated inside is also supported by an adjuster 3 independently of the floor panel 2. It has been proposed (Japanese Patent Application Laid-Open No. 6-240853).
The regenerative floor heating unit 1 is arranged below the floor panel 2 by supporting both sides of the frame 5 with adjusters 3 arranged on both sides. Also in this case, the running cost of floor heating can be reduced by temporarily storing the heat from the heater 8 in the heat storage material 7 using a cheap electricity rate at night.

[0005]

However, in the conventional regenerative floor heating unit 1 shown in FIG. 3, the frame 5 is fixed to the rear surfaces of the plurality of floor panels 2 by screws or the like. However, it is not possible to remove only one floor panel 2 from the floor and lift the floor panel 2, and there is a problem that the work such as maintenance of the wiring cable becomes troublesome.

On the other hand, in the conventional regenerative floor heating unit 1 shown in FIG. 4, the frame 5 is supported by the adjuster 3 separately from the floor panel 2, so that only one floor panel 2 is provided on the floor. It is easy to lift it off. However, in the case of the regenerative floor heating unit 1, the mounting height position is determined by the frame 5 being supported by the adjuster 3. It is unavoidable that a gap of a certain size is formed between the back panel 2 and the floor panel 2, and there is a problem that heat conduction is deteriorated by this gap and heating efficiency is reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and by fixing one or two or more frames each including a heat generating element and a heat storage material to the back surface of one floor panel,
It is an object of the present invention to provide a regenerative floor heating unit in which only one floor panel can be detached from the floor and the heat storage material can be brought into close contact with the back surface of the floor panel.

[0008]

According to a first aspect of the present invention, there is provided a regenerative floor heating unit in which a plurality of floor panels provided with wiring gaps are arranged and supported by support legs from below. In the regenerative floor heating unit used for the floor structure, the upper ends of one or two or more frame bodies having at least a bottom surface and both side plates are fixed to the back surface of each floor panel. In addition, a heat insulating material, a first heat storage material, a heating element, and a second heat storage material are laminated in order from the bottom plate in each frame.

According to the first aspect of the present invention, one or two or more frames, each of which is formed by laminating a heating element, a heat storage material, and the like, are fixed to the back surface of one floor panel. It can be easily lifted together with the frame by simply removing it from the floor. Moreover, since the frame is fixed to the back surface of the floor panel, the heat storage material can be laminated with almost no gap between the heat storage material and the back surface of the floor panel when assembling the regenerative floor heating unit.

[0010] The regenerative floor heating unit according to claim 2 is characterized in that the two or more frames are fixedly arranged on the back surface of the floor panel with a gap therebetween.

According to the second aspect of the present invention, the supporting legs are arranged not only at the peripheral edge of the floor panel but also at the gap between the adjacent frame bodies, and the floor panel is positioned from below even at a position near the center. Since the floor panel can be supported, the floor panel having a relatively large area can be reliably supported.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show one embodiment of the present invention. FIG. 1 is an overall perspective view showing a regenerative floor heating unit and an adjuster for supporting the unit, and FIG. 2 is supported by the adjuster. It is a longitudinal section front view showing a regenerative floor heating unit. Components having the same functions as those of the conventional example shown in FIGS. 3 and 4 are denoted by the same reference numerals.

The regenerative floor heating unit 1 of the present embodiment comprises:
As shown in FIG. 1, the present invention is used for a free-access floor-type regenerative floor heating system in which a floor panel 2 having a hollow portion for wiring formed therein by a double floor is supported by an adjuster 3. Actually, as shown in FIG. 2, a plurality of floor panels 2 are arranged side by side, and a floor floor 4 is formed by applying a flooring 4 thereon. Two frame members 5 are fixed to the back surface of each floor panel 2 at intervals. The frame body 5 is a gutter-like shape having a bottom surface and both side plates formed by bending a metal plate. Then, the upper ends of both side plates are further bent outward so as to be along the back surface of the floor panel 2, and screws are screwed from below into the upper ends of the both side plates of the frame 5 so that the upper ends of the both side plates are joined to the floor panel 2. Is fixed to the back surface. In addition,
The frame body 5 is not limited to such screwing as long as it can be securely fixed to the back surface of the floor panel 2, and can be fixed using any means. The frame 5 is not limited to a gutter shape, but may be a box shape, for example, in which bent metal plates are arranged at both ends of the opening. Furthermore, this frame 5
It is not necessary to use a metal plate as long as it has sufficient rigidity and a certain degree of heat resistance.

In each of the frames 5, a heat insulating material 6, a first heat storage material 7, a heater 8, and a second heat storage material 7 are arranged in this order from the bottom plate.
Are laminated. Since there is a demand for the heater 8 to accommodate the heat storage material 7 having a capacity as large as possible in a limited space on the back side of the floor panel 2, it is preferable to use a thin planar heating element. Examples of such a planar heating element include a sheet heating element laid with a meandering heater wire and a PTC heating element (positive temperature coefficient heating element). The meandering heater wire can be easily handled by appropriately stopping the portion with a resin tape or the like or sandwiching it between sheet materials or the like. As the PTC heating element, a heating element in which a heating layer formed by screen printing or the like is sandwiched between sheet materials such as PET (polyethylene terephthalate) and protected is used. When using a normal heater wire,
Although temperature control by a closed loop is necessary, when a PTC heating element is used, the automatic temperature control function of the PTC heating element enables temperature control by an open loop. Also,
Instead of the heater 8 that generates heat by the electric heating action, another heating element using induction heating or the like can be used.

First and second heaters 8 are arranged above and below the heater 8.
Since the heat storage material 7 only needs to temporarily store the heat generated by the heater 8 and gradually release the heat over time, the heat storage material 7 simply has a large heat capacity (a heat storage material using only sensible heat).
Although it is possible to use a latent heat type heat storage material that can store heat without increasing the temperature using latent heat, it is more efficient to use a heat storage material. Use things. In particular, in this embodiment, a paraffin-based latent heat type heat storage material that can maintain a solid state without liquefaction even in a heat storage state is used.

The heat insulating material 6 is for preventing the heat released from the heater 8 and the heat storage material 7 from escaping downward, and is made of urethane foam or glass wool containing a large amount of air having low thermal conductivity. It is preferable to use By the way, the heat insulating material 6 made of urethane foam, glass wool, or the like can be easily contracted, so that it can be fitted without gaps between both side plates of the frame 5. However, if the heater 8 and the heat storage material 7 are sized so that they can be fitted without gaps between the two side plates, there is a possibility that the heater 8 and the heat storage material 7 may not fit into the frame 5 due to dimensional variations or the like. The size is such that a certain gap is created when inserted into However, as it is, the regenerative floor heating unit 1
When the heat storage material 7 and the like vibrate internally during transportation of the heat storage type floor heating unit 1 and the like, a sheet material containing paraffin and the like and a heater wire of the heater 8 are generated. May be damaged. Therefore, in this embodiment, the upper and lower heat storage materials 7 sandwiching the heater 8 and the frame 5
By inserting the spacers 9 into the gaps between the two side plates, the space is filled and the sound insulation is improved, and they are not moved even if they are subjected to vibration, so that they are not damaged during transportation. ing. Further, if a spacer having a high heat insulating property is used, heat can be prevented from escaping to the side of the frame 5.

As shown in FIG. 2, the regenerative floor heating unit 1 having the above structure supports the back surface of the floor panel 2 at an appropriate height by an adjuster 3 erected on a concrete slab 10 serving as a foundation under the floor. By doing so, it is possible to arrange the floor panel 2 together with the frame body 5 so as to float to some extent on the slab 10. At this time, the floor panel 2 is supported by the adjusters 3 arranged at the four corners, and
The center portion is also supported by the adjusters 3 arranged between the individual frame bodies 5. Accordingly, the floor panel 2 has a relatively large area because the center portion and the like other than the peripheral portion can be supported from below by the adjuster 3 even though the frame 5 is fixed to the back surface. Even if it is, it becomes possible to support it.

The regenerative floor heating unit 1 energizes the heater 8 at night and temporarily stores heat in the heat storage material 7 arranged above and below, as in the prior art. By releasing the heat from the heat storage material 7 into the floor through the floor panel 2 and the flooring 4 throughout the day, floor heating can be performed using a low-cost electricity rate.

As described above, according to the regenerative floor heating unit 1 of the present embodiment, the two frames 5 in which the heater 8 and the heat storage material 7 are laminated are provided on the back of one floor panel 2. Since only one of the floor panels 2 is fixed, the inconvenience that only one floor panel 2 cannot be lifted off the floor as in the case of the conventional example shown in FIG. 3 is eliminated, and work such as maintenance of wiring cables becomes easy. . In addition, since the frame body 5 is laminated with the heater 8 and the heat storage material 7 in advance in a factory or the like and fixed to the back surface of the floor panel 2, the heater 8 and the heat storage material 7 are placed between the back surface of the floor panel 2 and the heater 8. Lamination can be performed with almost no gap, and there is no danger of lowering the heating efficiency of the regenerative floor heating unit 1 as in the case of the conventional example shown in FIG.

In this embodiment, the spacers 9 are inserted between the heater 8 and the heat storage material 7 and both side plates of the frame 5 respectively. In such cases, the insertion of such a spacer 9 is not always necessary. Further, in the present embodiment, the floor panel 2 having the hollow portion formed therein has been described. However, the floor panel 2 is not limited to the hollow portion, but may be a groove-shaped member as long as it has a wiring gap. It may be the case. Furthermore, in the present embodiment, the case where the floor panel 2 is supported by the adjuster 3 has been described. However, as long as the floor panel 2 is supported from below and can be arranged at an appropriate height position, Legs may be used.

In the present embodiment, one floor panel 2
Although the regenerative floor heating unit 1 in which two frames 5 are fixed to the back surface has been described, only one frame 5 may be fixed, or three or more frames 5 may be fixed. However, when only one frame 5 is fixed, or even when two or more frames 5 are fixed, if the intervals are narrowed, the adjuster 3 is used near the center of the back surface of the floor panel 2. Since there is no space to support, only the periphery is supported.

[0023]

As is apparent from the above description, according to the regenerative floor heating unit of the present invention, a frame in which a heating element, a heat storage material, and the like are laminated can be mounted over two or more floor panels. Therefore, only one floor panel can be easily removed from the floor and lifted at the time of maintenance of the distribution cable or the like. Moreover, since the heat storage material can be laminated with almost no gap between the heat storage material and the back surface of the floor panel, the heating efficiency through the floor panel can be increased.

Also, by disposing a gap between the plurality of frames, an adjuster can be installed in the gap to support the floor panel, so that even if the floor panel has a relatively large area, Can be supported.

[Brief description of the drawings]

FIG. 1, showing an embodiment of the present invention, is an overall perspective view showing a regenerative floor heating unit and an adjuster for supporting the unit.

FIG. 2, showing one embodiment of the present invention, is a longitudinal sectional front view showing a regenerative floor heating unit supported by an adjuster.

FIG. 3 is a perspective view showing a conventional example and showing a state in which one regenerative floor heating unit is attached to the back surfaces of a plurality of floor panels.

FIG. 4 is a longitudinal sectional front view showing another conventional example, showing a regenerative floor heating unit supported by an adjuster and a floor panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Thermal storage type floor heating unit 2 Floor panel 3 Adjuster 5 Frame 6 Insulation material 7 Thermal storage material 8 Heater 9 Spacer

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masahiko Omura 1-8-30 Temmabashi, Kita-ku, Osaka-shi, Osaka OAP Tawa-Mitsubishi Cable Industries, Ltd. Kansai Branch Office (72) Inventor Kengo Yamamoto Ikejiri, Itami-shi, Hyogo 4-3-3 Mitsubishi Cable Industries, Ltd. Itami Works (72) Inventor Kazuya Horiuchi 4-3 Ikejiri, Itami City, Hyogo Prefecture Mitsubishi Cable Industries, Ltd. Itami Works

Claims (2)

[Claims] 1. A regenerative floor heating unit for use in a floor structure in which a plurality of floor panels having wiring voids are arranged and supported by supporting legs from below, wherein at least a bottom surface is provided on a back surface of each floor panel. One or two or more frames having both sides are fixed at the upper end portions of both sides of the frame, and a heat insulating material, a first heat storage material, a heating element, and a second heat storage are arranged in each frame in order from the bottom plate. A regenerative floor heating unit characterized by laminated materials. 2. The regenerative floor heating unit according to claim 1, wherein the two or more frames are fixed to the back surface of the floor panel with a gap therebetween.