JP2001090971A - Regenerative floor heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a regenerative floor heating device to be excellent in transportation and installation properties and also have high heat storage capacity. SOLUTION: A sheet-form heating element 8, a soaking plate 9, and a good heat transfer property sheet material 10 are contained in a recessed part 5 of a floor material body 6. A box body 3 to contain a heat storage material 2 is brought into contact with a cover member 11 of a heating unit closed by a cover member 11 and this constitution forms a floor heating device.

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 apparatus, and more particularly to a regenerative floor heating apparatus which is excellent in transportability and workability and has a large capacity in heat storage.

[0002]

2. Description of the Related Art Electrothermal floor heaters are used in various applications because they have high safety as heating equipment and do not pollute the air in the place where they are used. Above all, the demand for a heat storage floor heating device is growing as an economically advantageous heating device because it can secure a heat source using cheap midnight power.

A floor heating device of this type incorporates a heat storage material such as sodium sulfate or sodium acetate which is solid at room temperature, and changes into a liquid when heated to store heat. Heating is performed by utilizing the heat release property from the heat storage material during the phase change to a solid.

[0004] In the case of the conventional regenerative floor heating system, a predetermined heating structure is obtained by sequentially mounting the individual members between or on the joists of the house, but the individual members are easily transported. In addition, there is a problem that the laying work takes time and the construction period is lengthened, and further, there is a disadvantage that the cost burden is increased due to this.

FIG. 4 shows a configuration of a regenerative floor heating device proposed by the applicant to solve the above problem. A sheet-like heating element 8 containing a heater wire 7 is accommodated in a recess 5 of a floor material main body 6 formed of a molded body such as plastics. The heat equalizing plate 9 for uniformly transmitting heat to the surface 4 of the main body 6 and the heat accumulator 14 for accumulating the heat from the heat generator 8 are laminated. It has a configuration confined within.

In this regenerative floor heating apparatus, necessary members are collectively accommodated in the floor material main body 6, and therefore, compared with a conventional floor heating apparatus in which each member is scattered, transportability and workability are improved. Therefore, it is possible to greatly reduce the construction period and thereby reduce the cost.

[0007]

However, according to the regenerative floor heating apparatus proposed above, the size of the heat storage body 14 housed in the recess 5 of the floor material main body 6 is limited, so that the heat storage capacity is insufficient. Therefore, there is a problem that daytime heating cannot be covered by the heat storage unit 14.

As described above, in this type of heating device, it is significant to use cheaper late-night electric power, and it is essential that daytime heating be performed by heat stored in the heat storage unit at midnight. In reality, the fact is that the shortage of the capacity of the heat storage element 14 is compensated for by the heat generated from the heating element 8.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a regenerative floor heating apparatus which is excellent in transportability and workability and has a large capacity in heat storage.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a heat storage type floor heating apparatus which stores heat from a heating element in a heat storage material and performs heating by radiating heat from the heat storage material. A floor material main body having a recess accommodating a heating element of a shape, a floor material main body having a floor surface on the surface, and a heating unit having a lid member that closes the heating element in the recess by closing the recess. A heat storage type floor heating device is provided, which comprises a box body which is brought into contact with the lid member of the heat generation unit and stores therein a heat storage material for storing heat from the heat generating element. .

The above-mentioned floor material main body and lid member are usually formed by molding plastics or the like.
As the sheet-like heating element, a heater wire is included in a meandering shape, or a material in which conductive particles such as metal powder or conductive carbon are mixed into rubber or plastics and molded into a sheet shape is used. Is done.

The box is made of plastics such as polypropylene or a metal plate. In many cases, the box is composed of a combination of a box main body and a lid which engages with the box in order to facilitate storage of the heat storage material. . It is preferable that a sheet material having excellent heat conductivity is interposed between the heating element and the lid member in the floor material main body, so that the heat transfer from the heating element to the heat storage material is equalized in terms of surface. As a constituent material of the sheet material, carbon-containing fibers, various metal plates, and the like are preferable.

[0013] It is possible to improve the heat transfer to the heat storage material in the box body by forming the lid member from a similar material having excellent heat conductivity. The above-mentioned good heat transfer sheet material may be omitted or used in combination.

It is practical to form a plurality of spaces by providing a partition inside the box, and to accommodate the heat storage material in these spaces. Since the presence of the partition wall enhances the strength of the box, the durability of the heat generating unit to the load applied from the lid member side is improved. As a result, the effect of preventing the floor from sinking due to walking or the like can be obtained, and the thickness of the box can be reduced accordingly.

In the floor heating device of the present invention, the heat generating unit and the box may be integrated, or may be separately constructed and combined on site. In the latter case, it is preferable to first arrange the box closely in a predetermined heating place in a plane, and then mount the heat generating unit thereon. In this case, there is no restriction from the heat generating unit as in the case where the heat generating unit is integrated with the heat generating unit, and therefore, the box can be laid efficiently.

When the heating unit is not formed in the whole room, the base member of the area where the heating unit is not formed is
Arranging a box having no heat storage material inside is a practical construction type. Since the base portion is more homogenized than when using another member instead of the box as the base member in the non-heating area, the configuration is preferable in terms of the floor structure.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a regenerative floor heating device according to the present invention will be described. FIG. 1A shows a cross-sectional structure of a regenerative floor heating apparatus according to the present embodiment, in which an upper heat generating unit 1 and a lower heat storing material 2 such as sodium sulfate, sodium acetate or the like are enclosed. It is composed of a combination of boxes 3.

FIG. 1B shows the heat-generating unit 1 with the steps removed. . A floor material body 6 having a floor finishing surface 4 on the surface and a concave portion 5 on the opposite side; a sheet heating element 8 housed in the concave portion 5 of the floor material body 6 and including a meandering heater wire 7; A heat equalizing plate 9 laminated on the heating element 8,
It comprises a sheet material 10 laminated under the heating element 8 and a lid member 11 which closes the concave portion 5 in order to confine the members 8 to 10 in the concave portion 5 in a state of being in close contact. The heat equalizing plate 9 and the sheet material 10 are both made of a carbon-containing fiber material having excellent heat conductivity.

FIGS. 1 (c) and 1 (d) show the structure of the box body 3; a box body 3a in which a plurality of spaces 13 are formed by providing a partition wall 12, and a box body 3a outside the box body 3a. Although not shown, the space 1 is constituted by a lid 3b to be engaged.
Heat storage materials are respectively enclosed in 3.

A rectangular (c) and a square (d) when viewed from a plane are selectively used according to the laying conditions of the floor heating device. When the box body 3 is constituted by the combination of the box body 3a and the lid 3b in this manner, the heat storage material 2 can be easily sealed in the box body 3 as compared with the closed structure, and if necessary, the heat storage material 2 can be sealed. Can also be exchanged.

FIG. 1A shows a vertically assembled combination of the heat generating unit 1 of FIG. 1B and a box 3 of FIG. 1C or FIG. The heat generated by the heating element 8 is transmitted to the sheet material 10 and the lid member 11 and stored in the heat storage material 2 in the box 3. Heat storage material 2
Is transferred to the floor material main body 6 via the cover members 11 to the heat equalizing plate 9 in a state where power supply to the heating element 8 is stopped in the daytime, and the heat is stored outside the floor finish surface 4. Released.

According to the regenerative floor heating apparatus of the present embodiment having the above-described configuration, the box body 3 for storing the heat storage material 2 is provided outside the heat generating unit 1, so that the heat storage heating capacity is required according to the required capacity. It is possible to set the amount of the heat storage material 2 by heating, and therefore, the original function of this kind of heating device, in which the heat storage material 2 covers daytime heating by the heat stored at midnight, can be sufficiently ensured. .

Further, since the configuration is based on the combination of the heat generating unit 1 and the box 3 containing the heat storage material 2 therein, it is excellent in transportability and workability. The required floor heating configuration work can be completed,
The effect of cost reduction by this can also be obtained.

Further, since the sheet material 10 having excellent heat conductivity is interposed between the heating element 8 and the lid member 11, the heat from the heater wire 7 is transmitted to the heat storage material 2 in a uniform manner on the surface. Will be. In the present embodiment, the box 3
Since the partition wall 12 is provided in the inside, the partition wall 12 reinforces the box body 3, and therefore, a robust box body capable of sufficiently withstanding a load applied from the lid member 11 side by walking or the like is configured. And the thickness of the box 3 can be reduced based on this robustness.

In the above configuration, it is possible to form the lid member 11 from a material having good heat conductivity such as a metal, thereby omitting the sheet material 10. However, in this case, it is necessary to make the concave portion 5 shallower by the amount of the sheet material 10 omitted in order for the members to be in close contact with each other for ensuring the heat conductivity. In addition, in the usage form of this regenerative floor heating device, power supply to the heating element 8 in the daytime is not denied.

FIGS. 2 (a) to 2 (c) show how the box 3 is laid. (A) is an example in which rectangular boxes 3 are closely arranged in series when viewed from above, (b) is an example in which rectangular boxes 3 are closely arranged in a staggered manner, and (c) is a square box 3 In the case where the heating unit and the box body are separately provided without being integrated as described above,
It is possible to lay out the box 3 with ample tolerance in various forms that meet the conditions of the laying place.

A in FIG. 2C shows an area where a box 3 'having no heat storage material is laid therein. When a floor heating device is installed, a heating area and a non-heating area are often adjacent to each other, and in such a case, a box 3 'having the same shape as the heating area is used as a base member of a floor material in the non-heating area. The thing is
It is more practical than re-preparing the base member for the non-heating area, and it is preferable because the floor structure is homogenized.

FIG. 3 is an example showing the relationship between the arrangement of the heat generating unit 1 and the box 3. The heat-generating unit 1 and the box 3 are not necessarily used in a paired relationship with each other as they are arranged crossing each other. Heating unit 1
The arrangement of the housing 3 and the box 3 is not restricted to each other, and the width and length of each can be freely set.

[0029]

As described above, according to the regenerative floor heating apparatus of the present invention, the box body containing the heat storage material and the heat generating unit are separately provided, and the lid member of the heat generating unit is brought into contact with the box body. Due to the structure, the amount of heat storage material contained in the box is not limited, and therefore, a sufficient amount of heat can be stored by increasing the amount of heat storage material. That is, it is possible to secure a sufficient amount of heat using the cheap midnight power and to surely obtain the economic merit of releasing the heat during the day.

Further, since a predetermined regenerative floor heating device is constituted by a combination of a box housing a heat storage material therein and a heat generating unit, it is excellent in transportability and workability. The effect of cost reduction can also be expected sufficiently.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment of a regenerative floor heating device according to the present invention, wherein (a) is a cross-sectional structure thereof, (b) is a configuration diagram of a heat generating unit, and (c) and (d) are boxes. FIG.

FIGS. 2A and 2B show an arrangement of a box, and FIGS.
(C) shows the example.

FIG. 3 is an explanatory diagram showing the relationship between the arrangement of a heat generating unit and a box.

FIG. 4 is an explanatory diagram showing a comparative example of a regenerative floor heating device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat generating unit 2 Heat storage material 3 Box 3a Box main body 3b Cover 4 Floor finishing surface 5 Depression 6 Floor material main body 8 Heating element 9 Heat equalizing plate 10 Sheet material (good heat transfer property) 11 Cover member 12 Partition 13 Space

 ────────────────────────────────────────────────── ─── Continued from the front page (72) Inventor Tadato Wachi 5-1-1 Hidaka-cho, Hitachi City, Ibaraki Prefecture F-term in the Hidaka Plant of Hitachi Cable, Ltd. (Reference) 3L070 BD01 BD06 BD07 3L071 CC05 CD01 CE01 CF03 CF05 3L072 AA08 AB03 AC02 AD03 AD06 AD09 AD12 AD17

Claims (7)

[Claims] 1. A regenerative floor heating device for storing heat from a heat generating element in a heat storage material and performing heating by radiating heat from the heat storage material, comprising a recess accommodating a sheet-like heat generating element, and a floor finish on the surface. A floor material main body having a surface, a heating unit having a lid member that seals the heating element in the recess by closing the depression, and a heating unit that is brought into contact with the lid member of the heating unit, from the heating element. A regenerative floor heating device comprising a box housing therein a heat storage material for storing heat of the floor. 2. The concave portion accommodates therein a sheet material having excellent heat conductivity, and the sheet material having excellent heat conductivity is interposed between the heating element and the lid member. The regenerative floor heating device according to claim 1. 3. The regenerative floor heating device according to claim 1, wherein said lid member is made of a material having excellent heat conductivity. 4. The regenerative floor heating apparatus according to claim 1, wherein the box comprises a box main body accommodating the heat storage material and a lid engaged with the box main body. 5. The box body is partitioned into a plurality of spaces by partition walls, the heat storage material is accommodated in the plurality of spaces, and the box body has durability against a load applied from the lid member side. The regenerative floor heating device according to claim 1, wherein the floor heating device is reinforced by a partition wall. 6. A plurality of said boxes are arranged on a predetermined plane in a state in which a plurality of said boxes are in close contact with each other, and a plurality of said heat generating units are arranged in close contact on said box in a predetermined plane. The regenerative floor heating device according to claim 1, wherein: 7. The box disposed on the predetermined plane,
The heating unit is arranged in an area where the heating unit is arranged, and in an area where the heating unit is not arranged adjacent to the area,
7. The regenerative floor heating device according to claim 6, wherein the box body having no heat storage agent is disposed therein.