JPH08170836A - Infrared ray radiating heating panel - Google Patents

Abstract

PURPOSE: To increase a far-infrared ray radiating efficiency as well as a mechanical strength and permit the increasing of the area thereof largely by a method wherein the sectional configuration of a heat equilibrium structural body is formed of a substantially flat C-type while a farinfrared ray converting medium is formed of a mixed resin of ceramics powder. CONSTITUTION: A heat equilibrium structural body 1 generates heat by an electric heat generating body 3 and the heat of near-infrared ray, transferred to the lower surface of an upper plate 11 of the heat equilibrium structural body 1, is collected selectively to heat evenly the upper plates 11 quickly by conduction while the mechanical strength of the whole of a floor heating unit is secured by the sectional configuration of substantially flat C-type. A far- infrared ray converting medium 2 is constituted of a mixture or a composite of ceramics powder and a resin and is provided with high far-infrared ray converting efficiency and, especially, capable of radiating efficiently the far- infrared ray of a long wavelength area, longer than the wavelength of 16μm, which is capable of heating 3-atomic molecules efficiently. Acccording to this method, the far-infrared ray radiating efficiency and the mechanical strength can be increased and the area thereof can easily be increased largely.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a floor heating panel. In particular, it relates to a far-infrared radiation floor heating panel that efficiently radiates far-infrared radiation suitable for air heating and transdermal heat absorption.

[0002]

2. Description of the Related Art Floor heating is a heating system for effectively heating indoor air by widely heating a floor surface and radiating heat to effectively heat the indoor air. In other words, by heating the bottom of the room air widely and uniformly, convection occurs throughout the room.Therefore, the temperature distribution in the room is more uniform both in the horizontal and vertical directions, compared to a stove or air conditioner for local heating. Are better. The feet (up to about 30 cm above the floor) are warmer by radiant heat, and the uniform heat can be obtained by convection in an area of about 30 cm or more, which is comfortable and energy-saving heating. Floor heating can be roughly classified into a warm medium type and an electric heating type when classified by the source of heat energy. The warm medium includes liquid and gas. In the warm medium type, the warm medium is circulated in a pipe arranged under the floor, the boiler is heated by the boiler, and heat is exchanged with the floor surface. On the other hand, in the electric heating type, a heater is provided under the floor, and heat is generated by energizing the heater to exchange heat with the floor surface.

Historically, the warm medium form prevailed. The heating medium type is said to have a low construction cost per unit area of the floor surface, but since the heat conductivity to the floor surface of the system is low, the rise of heating is slow, and the heat conductivity deteriorates due to the accumulation of dirt on the inner surface of the pipe. It has the drawback that it is prone to deterioration over time such as leakage of warm medium due to pipe corrosion. On the other hand, the electric heating type is a latecomer, but due to its features of quick heating and the use of clean energy, sales are rapidly increasing, especially in urban areas where there are many apartments. However, the water resistance and weight resistance of the system are low, and the construction cost per unit area is high. Therefore, even though the system is an ideal heating system, its popularity is not yet high. In the case of electric heating floor heating, it is possible to relatively easily increase the area by fitting a plurality of fixed panels on the floor surface and connecting the heaters of the fixed panels in series or parallel or in parallel.

The inventor of the present invention forms a heat-generating panel in which a waterproof electric heating element is arranged and heat-treated on the back surface of a fixed-type panel to which the ceramic style is connected by a joint (medium), and the heat-generating panel is formed in series or parallel series. A large-area heat generating panel by connecting is disclosed (Japanese Patent Publication No. 6-74900). This electric heating type heat generating panel has high waterproofness, high long-wavelength far-infrared radiation efficiency and fast heating performance by ceramic style, high mechanical strength and color tone / shape correspondence, so
It is especially suitable for floor heating around toilets, bathrooms, kitchens, etc. As described above, floor heating is a type of main heating system that heats air. Looking at air heating at the molecular level,
It does not occur with diatomic molecules such as nitrogen and oxygen, which are the main components of air, but occurs due to the absorption of triatomic molecules (trace components) such as water and carbon dioxide gas. Of the heat energy radiated from the floor, the long-wavelength far-infrared component with a wavelength of 16 μm is particularly effective in efficiently heating water molecules and carbon dioxide molecules (triatomic molecules) and directly stimulating the subcutaneous warming nerves. Therefore, it is useful for further enhancing the energy saving property which is a general feature of floor heating.

[0005]

2. Description of the Related Art As described above, the electric heating type floor heating using the ceramic style has excellent characteristics, but has a problem of high construction cost. The conventional electric heating type floor heating system whose construction cost is lower than this is a structure that combines a plastic (or metal) heat dissipation plate, a metal heating element, and a heat insulating plate, which is advantageous in terms of cost.
On the contrary, it has the drawbacks of low water resistance and weight resistance, and is easily deteriorated over time.

[0006]

It is an object of the present invention to provide an electric heating type floor heating which has a high far-infrared radiation efficiency, a high mechanical strength, a large area can be easily made, and a construction cost per unit area is lower than before. To provide a panel.

[0007]

[Means for Solving the Purpose] Solving the above problems,
To achieve the above objects, a far infrared radiant floor heating panel according to the present invention comprises a plurality of far infrared radiant floor heating panel units, and the far infrared radiant floor heating panel unit includes at least a far infrared conversion medium ( 2), a soaking structure (1), an electric heating element (3), a heat insulating body (4), and a power supply terminal (5), the soaking structure (1) is a rectangular upper plate (1 ₁ ), And a rectangular left side plate (1 ₂ ) and right side plate (1 ₂ ) connected to the left and right ends of the upper plate, respectively,
It has a pair of substantially rectangular divided bottom plates (1 ₃ ) and (1 ₃ ) connected to the lower ends of the left side plate and the right side plate, respectively, and a hollow portion, the cross-sectional shape of which is a substantially flat C shape. And
The material is a metal plate, and the far infrared conversion medium (2)
Is a mixture or composite of a ceramic powder having a high far-infrared conversion efficiency, capable of efficiently heating triatomic molecules, and capable of efficiently emitting far-infrared rays in a wavelength region longer than 16 μm, and a resin. And the electric heating element (3) is
The far-infrared conversion medium (2) is made of a thin-film or linear electric heating element that has been subjected to an insulation treatment, and the far-infrared conversion medium (2) is fixed to the upper surface of the upper plate (1 ₁ ) of the soaking structure (1) to obtain the soaking structure. The linear expansion coefficient of the constituent material of the upper plate (1 ₁ ) of (1) and the resin of the far-infrared conversion medium (2) are made substantially equal, and the electric heating element (3) is the heat insulator. The electric heating element (3) and the heat insulating body (4) are disposed on or near the upper surface of (4), and are inserted and stored in the hollow portion of the heat equalizing structure (1). (3) is positioned so as to be close to the lower surface of the upper plate (1 ₁ ) of the soaking structure (1), and the power supply terminal (5) is provided on the front end surface of the heat insulating body (4) and / or. is disposed on the rear end surface, whereby the far-infrared conversion medium (2), an upper plate (1 ₁₎ of the soaking structure (1), electrostatic Heating body (3), insulation (4), the divided bottom plate of the soaking structure (1) (1 _3), and is (1 _3), this order is the formation structured in the far-infrared converter The medium (2) has a function of efficiently converting heat of near-infrared rays transmitted from the upper plate (1 ₁ ) of the heat-uniforming structure (1) into far-infrared rays having a wavelength region longer than 16 μm and radiating it to the outside. The uniform heating structure (1) is selectively applied to capture the heat of near-infrared rays generated in the electric heating element (3) and transmitted to the lower surface of the upper plate (1 ₁ ) by radiation and / or conduction. Along with
The function of rapidly equalizing the upper plate (1 ₁ ) by conduction, the function of ensuring the mechanical strength of the entire floor heating panel unit by the substantially flat C-shaped cross-sectional shape, and the electric heating element (3 ) And the function of protecting the heat insulating body (4) from external pressure, <r> the heat insulating body (4) prevents downward diffusion of heat energy generated in the electric heating element (3). At the same time, a function of facilitating the propagation of the heat equalizing structure (1) located above to the upper plate (1 ₁ ) is added, and the plurality of far-infrared radiation floor heating panel units are connected in series on the floor. The electric heating elements (4) are electrically connected in series, parallel, or series-parallel via the respective power supply terminals.

[0008]

The upper surface of the heat equalizing structure is heated by radiation and / or conduction from the electric heating element housed therein, and is quickly and uniformly heated to a predetermined temperature. The soaking structure increases the weight resistance of the entire panel due to the increase in strength due to bending. The heat equalizing structure also mechanically protects, by its top, sides, and bottom, the electric heating element and the heat insulating element contained therein. The ceramic powder in the far-infrared conversion medium efficiently converts near-infrared rays transmitted from the soaking structure into far-infrared rays. Moreover, in the low temperature region, long-wave far infrared rays having a wavelength of 16 μm or more are efficiently radiated. The long-wavelength far-infrared rays having a wavelength of 16 μm or more can efficiently heat triatomic molecules in the air or the skin. The resin layer in the far-infrared conversion medium uniformly adheres the ceramic powder to the upper surface of the uniform heating structure and radiates far-infrared rays upward.

The thermal strain generated when the temperature of the panel is raised can be absorbed by the equal thermal expansion between the far-infrared converting medium whose thermal expansion coefficient is adjusted and the soaking structure. In addition, between the uniform heating structure, the electric heating element, and the heat insulating body, they can be movably absorbed by being separated from each other. The thermal expansion of the soaking structure due to the panel temperature rise can be treated because it appears as an extension to the open bottom surface and open end surface in the direction perpendicular to the floor surface, and the thickness of the metal plate in the direction perpendicular to the floor surface. Is thin (several mm at most) and can be virtually ignored. By waterproofing the electric heating element, the entire heating panel can be immediately made into a waterproof structure. When the ceramic powder in the far-infrared conversion medium is made of Al ₂ O ₃ -based ceramic powder and / or NiO-based ceramic powder, long-wavelength far-infrared rays having a wavelength of 16 μm or more are emitted more efficiently in the low temperature region. When a large number of punching holes or slit holes are formed in the side portion of the heat-uniforming structure, the heat loss that flows away from the upper portion to the side portion to the bottom portion is reduced.

[0010]

EXAMPLE A first example of a far infrared radiation floor heating panel according to the present invention will be described. 1A and 1B are explanatory views of the embodiment, FIG. 1A is an external perspective view of only a first half portion of the embodiment, omitting a second half portion, and FIG. 1B is a front view thereof. In FIG. 1, 1 is a soaking structure, 2 is a far infrared conversion medium, 3 is an electric heating element, 4 is a heat insulating body, 5 and 5 are a pair of power supply terminals, and 7 is a cable. Soaking structure 1, the upper, for example an upper plate _{1 1,} the side, for example side plate ₁ 2, 1
₂ and a bottom portion, for example, divided bottom plates 1 ₃ and 1 ₃ . Upper 1 ₁ of the soaking structure 1, it is desirable that a good thermal conductivity. These members 1 to 5 together form a far infrared radiation floor heating panel unit. The far-infrared radiation floor heating panel of the first embodiment is composed of a plurality, for example, eight far-infrared radiation floor heating panel units. In FIG. 1, half of these eight far-infrared radiation floor heating panel units, four, are omitted.

The uniform heating structure 1 can be manufactured, for example, from one aluminum plate (thickness 2 mm, area 2 m × 2 m) in the following procedures (a), (b) and (c). (B) Set four bent portions parallel to the left or right side of the aluminum plate. The first bent portion is composed of a line segment that is parallel to the left side and passes through points 25 cm from the left side. The second bent portion is composed of a line segment that is parallel to the right side and passes through points 25 cm from the right side. The third bent portion is composed of a line segment that is parallel to the left side and passes through points 15 cm from the left side. The fourth bent portion is composed of a line segment that is parallel to the right side and passes through various points 15 cm from the right side. (B) Fold the first and second bent portions downward at substantially right angles. Upper plate _{1 1,} the side plates ₁ 2, _{1 2} are formed. (C) Fold the third and fourth bent portions inwardly at substantially right angles. Divided bottom plates 1 ₃ and 1 ₃ are formed.
The shape structure of the soaking structure 1 thus formed is such that the top plate 1 ₁ , the side plates 1 ₂ and 1 _{2 and the} divided bottom plates 1 ₃ and 1 ₃ are rectangular (rectangular), and therefore the cross section is flat. It is a glyph. An open end surface is formed on each of the front surface and the rear surface,
During the division bottom plate 1 ₃ and 1 _3, open bottom is formed. Each part is 200 cm in overall length and 150 in width.
cm, is 10cm becomes high, divided bottom plate ₁ 3, _{1 3} of the width is 15cm.

The far-infrared ray conversion medium 2 is a resin having a linear expansion coefficient substantially equal to that of the constituent material of the soaking structure 1, for example, α.
-Cellulose-filled urea resin and ceramic powder having high far-infrared conversion efficiency, especially in the long wavelength region, such as Al
_It is composed of a mixture or composite with ₂ O ₃ based ceramic powder and / or NiO based ceramic powder. In the case of a composite, for example, it is manufactured according to the following procedures (1), (2) and (3). (1) Most of the top surface of the upper plate _{1 1} of the soaking structure 1, for example of 198 × 148cm ² area, placing an alumina sheet made of a sintered alumina powder having a thickness of about 1 mm. (2) The α-cellulose-filled urea resin is applied from above to form a layer. The layer thickness is about 2 mm. (3) Perform low temperature heat treatment. Double layer structure fixed to the upper surface of the upper plate 1 ₁ is formed. 2 ₁ is a ceramic powder layer, 2 ₂
Is a resin layer. Ceramic powder and between the upper plate 1 _1, and between the ceramic powder particles, the resin enters interposed, it plays the role of adhesive. Since the linear expansion coefficient of the α-cellulose-filled urea resin is about 26 × 10 ⁻⁶ K ⁻¹ , the linear expansion coefficient of aluminum (25.5 × 10 ⁻⁶ K) is used.
^-1 ) is almost equal to.

The electric heating element 3 is, for example, a sheathed heater using a nichrome wire. The heat insulating material 4 is made of, for example, a foam concrete board. The size is, for example, 198 cm × 149 cm × 9.2 cm. The upper surface of the heat insulating material 4 is provided with a zigzag groove. The electric heating element 3 is placed in a semi-buried state in the zigzag groove. A pair of power supply terminals 5 and 5 for sheathed heaters are provided on the end face in the longitudinal direction of the heat insulating material 4, that is, the front end face and / or the rear end face. A conductor wire to a cable 7 (or an external connection jig) is connected to the pair of power supply terminals 5 and 5. The end surface of the heat insulating material 4 or the end surface of the heat equalizing structure 1 is then molded.

In this state, the electric heating element 3 and the heat insulating material 4 are inserted and filled into the hollow portion of the heat equalizing structure 1. Insulation 4
Although it does not have sufficient mechanical strength itself, by being housed in the hollow portion of the heat equalizing structure 1, it can be sufficiently protected from external pressure together with the electric heating element 3 arranged in the groove on the upper surface. Becomes The weight resistance of the aluminum uniform heating structure 1 loaded with the far-infrared conversion medium 2 is 200 kg / cm.
Reached ² or more. The floor heating panel shown in FIG. 1 is waterproof. In addition, the electric heating element 3 disposed on the upper surface of the heat insulator 4.
If, because the lower surface of the top plate 1 ₁ of the soaking structure 1 are close large heating rate. Furthermore, in order to soaking structure 1 is composed of a single metal plate, the thermal uniformity of the top plate 1 ₁ top is very high.

Far-infrared radiation characteristics of the first embodiment of the far-infrared radiation floor heating panel unit according to the present invention will be described. FIG. 2 is a graph showing the wavelength dependence of the infrared radiation characteristic of the same example. The horizontal axis represents the wavelength of emitted far infrared rays, and the vertical axis represents the intensity of the far infrared rays. In the figure,
The curve labeled "resin / alumina / aluminum" represents the far infrared radiation characteristics of the first embodiment of the present invention. The curve labeled “Aluminum plate” is a comparative example, and represents the far-infrared radiation characteristics of the aluminum plate alone, and the curve labeled “Steel plate” is also a comparative example. Shows the far infrared radiation characteristics of a steel sheet alone. According to FIG. 2, the far-infrared radiation characteristic of the first embodiment of the present invention exhibits a much higher heat radiation characteristic in the wavelength region of about 5 μm or more as compared with the aluminum plate alone and the steel plate alone. it is obvious.

The far-infrared radiation floor heating panel unit according to the first embodiment exhibits a substantially flat and high heat radiation characteristic even in a long-wavelength far-infrared region having a wavelength of 16 μm or more. However, in the wavelength region of 16 μm or more, a wide heat absorption band is formed in relation to the rotational movement of the constituent elements of the triatomic molecule in the room air, for example, water molecule and carbon dioxide gas molecule. Therefore, the far-infrared radiation floor heating panel unit according to the first embodiment can heat the indoor air extremely efficiently. That is, the thermal energy radiating property of the same example is far superior to the aluminum plate and the steel plate in a double sense.

A first embodiment of the far infrared radiant floor heating panel according to the present invention comprises a plurality, for example, eight far infrared radiant floor heating panel units. These eight far-infrared radiation floor heating panel units are arranged, for example, in 2 rows and 4 columns. However, in FIG. 1, the four far-infrared radiation floor heating panel units in the second row are omitted. Eight electric heating elements 3 of the above eight far-infrared radiation floor heating panel units
Are electrically connected in the following manners (a), (b) and (c). (A) The four electric heating elements 3 of the four panel units adjacent to each other in the horizontal direction (row direction) are connected in parallel (or series) to each other via the power supply terminals 5 and 5. (B) Two electric heating elements 3 of two panel units adjacent to each other in the vertical direction (column direction) are connected in series (or series) via the power supply terminals 5 and 5. (C) Eight electric heating elements 3 electrically connected in series or parallel and in series are connected to a power supply section (not shown) via a cable 7 and a power switch (not shown).

Thus, by turning on the power switch (not shown), the far-infrared radiation floor heating panel can be rapidly heated. A temperature sensor (not shown) is provided on the surface of one or more panel units in the far infrared radiation floor heating panel. The output of the temperature sensor is fed back to the temperature control panel provided side by side with the power supply unit. Thereby, the surface of the panel unit is adjusted and maintained at a predetermined temperature.

When the far infrared radiation floor heating panel unit is connected as described above, a large area far infrared radiation floor heating panel of about 24 m ² is formed. The output of the large-area far-infrared radiation floor heating panel is 4.8 to 7.2 kW at maximum.
Can be set to Electric heating type floor heating panel,
It is known that if it is installed on 60% of the indoor floor area, it will function as main heating. Therefore, in comparison with this, it is understood that the large-area far-infrared radiation floor heating panel functions as the main heating of a room having a floor area of 40 m ² . As described above, the far-infrared radiation floor heating panel of the first embodiment has sufficient mechanical strength and also has flatness, so that this panel is constructed to form the floor surface. After that, as floor finishing material, carpet, flooring,
Alternatively, many materials such as tatami mats can be used. Further, even if a heavy object such as Viano is placed on the upper surface of the panel, no problem occurs.

A far-infrared radiation floor heating panel according to a second embodiment of the present invention will be described. 3A and 3B are explanatory views of the same embodiment, FIG. 3A is an external perspective view of only a part of the same embodiment with most parts omitted, and FIG. 3B is a front view thereof. In FIG. 3, 1 is a heat equalizing structure, 2 is a far infrared conversion medium, 3 is an electric heating element, 4 is a heat insulator, 5 and 5 are a pair of power supply terminals, and 7 is a cable. Further, 1p is a punching hole, and 6 is a rubber packing. The heat equalizing structure 1 includes an upper part, for example, an upper plate, a side part, for example, a side plate, and a bottom part, for example, a divided bottom plate. It is desirable that the upper plate of the soaking structure 1 have good thermal conductivity. These members 1 to 5 together form a far infrared radiation floor heating panel unit.
A plurality of far-infrared radiation floor heating panels of the second embodiment,
For example, it is composed of n × m far-infrared radiation floor heating panel units (n and m are positive integers). In FIG. 3, among these n × m far-infrared radiation floor heating panel units,
Only two are shown, and the remaining (n × m−1) are omitted.

The soaking structure 1 is formed from one stainless steel plate having a thickness of 1.5 mm in the same manner as in (a), (b) and (c) of the first embodiment. . A large number of punching holes 1p are regularly provided in the side plate of the uniform heating structure 1, for example, in a zigzag pattern as shown in the drawing.
These punching holes 1p reduce the weight of the heat equalizing structure 1 and at the same time increase the resistance of the heat path from the upper plate of the heat equalizing structure 1 to the bottom plate via the side plates, and to the bottom plate via this path. Reduce the rate of escaped thermal energy. In order to maintain the weight resistance of the uniform heating structure 1 at about 200 kg / cm ² , the area occupied by all the punching holes 1p is preferably about 50% of the side plate area.

The far infrared conversion medium 2 of the second embodiment is N
It consists of a glass fiber-filled unsaturated polyester resin layered body in which about 40% by volume of iO powder is dispersed, and its thickness is about 1 mm. The NiO mixed resin layer is formed by coating and drying the upper surface of the upper plate of the uniform heating structure 1. The thermal expansion coefficient of this NiO mixed resin layer is 17.5 ×
Since it is 10 ⁻⁶ K ⁻¹ , which is almost the same as that of stainless steel, the resin layer does not peel off from the upper plate upper surface of the heat-uniforming structure 1 when the temperature is raised or lowered. The electric heating element 3 is, for example, a stripe of a thin film metal / glass mixture sealed in a waterproof sheet. The stripes are folded back in every predetermined length, and regularly form one heat generation conducting path that covers the entire plane. The heat insulating material 4 has, for example, a thermal conductivity of 0.0.
A glass fiber board (board) of 51 (W / m · k) is used. The electric heating element 3 is disposed on the upper surface of the board of the heat insulating body 4, and is connected to the cable 7 via power supply terminals 5 and 5 fixed to one end surface of the board as shown in the figure.

The far-infrared radiation characteristics of the second embodiment of the far-infrared radiation floor heating panel unit according to the present invention will be described. FIG. 4 is a graph showing the wavelength dependence of the infrared radiation characteristic of the same example. The horizontal axis represents the wavelength of emitted far infrared rays, and the vertical axis represents the intensity of the far infrared rays. Curve (solid line) labeled "Before heat cycle" in the figure
Is 50 ° on the surface of the far infrared conversion medium 2 of the second embodiment.
Far-infrared radiation characteristics when held at C are shown. Comparing the far-infrared radiation intensity of “before heat cycle” of the second embodiment of FIG. 4 with the far-infrared radiation intensity of “resin / alumina / aluminum” of the first embodiment of FIG. It can be seen that the radiation intensity of the second embodiment in the far infrared region is slightly lower than that of the first embodiment. The cause is
It is considered that the concentration of NiO ceramics in the thickness direction in the far-infrared conversion medium 2 of the second embodiment is slightly low. However, the far infrared radiation intensity of the second embodiment is much higher than that of the stainless steel plate alone.

In FIG. 4, the curve labeled "after heat cycle" (dashed line) is the far-infrared radiation of the second embodiment after 2000 heating / cooling tests from room temperature to 55 ° C. Data (surface temperature 50 ° C) are shown.
By 2000 temperature rising / falling tests, it was confirmed that microcracks, which are considered to be caused by local thermal strain between the stainless steel plate and the NiO mixed resin layer, were generated on the surface of the far infrared conversion medium 2. As shown in the figure, the deterioration of the radiation characteristic in the far-infrared region is very small. During the actual construction of the second embodiment of the far-infrared radiation floor heating panel according to the present invention, a finishing material such as carpet or flooring is arranged on the upper surface of the NiO mixed resin layer. Even if microcracks occur,
There is no problem in practice. That is, the presence of microcracks in the NiO mixed resin layer does not change the weight resistance and water resistance of the floor heating panel. Further, the far-infrared radiation characteristics hardly change practically, and since the finishing material is provided, the aesthetic appearance is not impaired.

As shown in the figure, the rubber packing 6 has a T-shaped cross section.
It has a shape and thus contains a horizontal plate and a hanging plate. The rubber packing 6 is arranged between the contact surfaces of the far-infrared radiation floor heating panel units that are laterally adjacent to each other, as shown in the drawing. This is convenient because the thickness of the hanging plate of the rubber packing 6 can secure a passage for a cable connected to the power supply. After arranging the panel unit of the second embodiment on the floor in the same manner as in the first embodiment,
A far-infrared radiation floor heating panel having a large area can be obtained by connecting the cable 7 in series parallel or parallel series through the respective power supply terminals 5 and 5.

The energization test for the first and second embodiments of the far infrared radiation floor heating panel according to the present invention will be described. The first and second embodiments of the present invention and a commercially available plastic heat sink type floor heating panel are installed in 6 tatami mats of a wooden flat house under the same conditions, and 60% of each floor area is constructed. Then, the room temperature was set to 25 ° C., and an energization test was conducted in the winter. When the running costs were compared by energizing for 10 hours a day for 1 month, the first and second aspects of the present invention were compared.
It was found that the running cost of the floor heating panel of the above example was about 1/2 of that of the commercially available product.

Another embodiment will be described. (1) As the metal plate constituting the soaking structure 1, besides the aluminum plate and the stainless steel plate, a copper plate, a brass plate, a duralumin plate, a mild steel and the like can be used. (2) As the metal plate forming the soaking structure 1, different metals can be laminated and used. (3) One or a plurality of slits for suppressing the escape of thermal energy or an opening formed by enlarging the slit width can be provided on the side portion of the heat equalizing structure 1. (4) The soaking structure 1 can be manufactured from two or more metal plates of the same kind or different kinds by bending and / or welding. (5) The soaking structure 1 is obtained by connecting two structures having a substantially flat C-shaped cross section in the longitudinal direction.
(6) Ceramics, which are the constituent materials of the far-infrared conversion medium 2, include Al ₂ O ₃ and NiO-based materials, as well as SiC-based materials, TiO ₂ -based materials, Cr ₂ O ₃ -based materials, and the like. Can be used alone or in combination or in combination. (7) Second
The rubber packing 6 used in the first embodiment can also be used in the first embodiment. The above embodiments can be variously modified within the spirit of the present invention. The scope of the invention is not limited to these examples.

[0028]

EFFECTS OF THE INVENTION Since the present invention is constituted as described above, the following remarkable effects can be obtained as (a) to (1). The present invention enables the use of (a) (by introducing a ceramics powder mixed resin layer as a far infrared conversion medium) the excellent long wavelength far infrared radiation characteristics of ceramics,
(B) Prevents the occurrence of cracks in the far-infrared conversion medium (by adjusting the linear expansion coefficient of the ceramic powder mixed resin layer to be substantially equal to the linear expansion coefficient of the heat-uniforming structure constituting material), and (c) ( (By introducing a uniform heating structure having a flat C-shaped cross-section), it is possible to increase the area and (d) increase the weight resistance. Increased water resistance (because it was molded), (f) (due to the "inset" method of construction)
It is possible to provide a far-infrared radiation floor heating panel that simplifies construction and reduces the construction cost per unit area due to (g).

The far-infrared radiant floor heating panel according to the present invention further has (h) rapid rise in heat radiation (since the uniform heating structure is introduced), and (i) far-infrared radiant characteristics and single-sided heat. It has excellent radioactivity and (j) for this reason the running cost is low. In the far-infrared radiation floor heating panel according to the present invention, further, (k) exchange of the electric heating element can be easily performed by pulling out the heat insulating material board from the hollow portion of the heat equalizing structure. (L) Therefore, it is possible to contribute to the popularization of an efficient electric heating type floor heating panel, and thus to contribute to the labor saving of the whole society.

[Brief description of drawings]

FIG. 1 is a first far infrared radiation floor heating panel according to the present invention.
FIG. 3 is an explanatory diagram of an example of FIG.

FIG. 2 is a graph showing wavelength dependency of infrared radiation characteristics of the first embodiment.

FIG. 3 is a second far infrared radiation floor heating panel according to the present invention.
FIG. 3 is an explanatory diagram of an example of FIG.

FIG. 4 is a graph showing the wavelength dependence of infrared radiation characteristics of the second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Soaking structure 1 ₁ Top of soaking structure (upper plate) 1 ₂ Sides of soaking structure (side plate) 1 ₃ Divided bottom of soaking structure (bottom plate) 1p punching hole 2 Far infrared conversion medium 2 ₁ ceramic powder layer 2 ₂ resin layer 3 electric heating element 4 heat insulating body 5 power supply terminal 6 rubber packing 7 cable

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[Procedure amendment]

[Submission date] March 29, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Title of invention

[Correction method] Change

[Correction content]

[Title of the Invention] far infrared release Idan bunch panel

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location H05B 3/28

Claims (7)

[Claims] 1. A far infrared radiation floor heating panel unit comprising a plurality of far infrared radiation floor heating panel units, wherein the far infrared radiation floor heating panel unit comprises at least a far infrared conversion medium (2), a soaking structure (1) and an electric heating element (3). ), A heat insulator (4), and a power supply terminal (5), and the heat equalizing structure (1) is a rectangular upper plate (1 ₁ ) and a rectangular upper plate (1 ₁ ) connected to the left end and the right end of the rectangular upper plate, respectively. A left side plate (1 ₂ ), a right side plate (1 ₂ ), a pair of substantially rectangular split bottom plates (1 ₃ ), (1 ₃ ), which are connected to respective lower ends of the left side plate and the right side plate, and a hollow portion. The far-infrared conversion medium (2) has a high far-infrared conversion efficiency and is particularly efficient for triatomic molecules. Can be heated to a wavelength of 16μ
a mixture or composite of ceramic powder capable of efficiently radiating far infrared rays in a wavelength region longer than m, and a resin, wherein the electric heating element (3) is an insulating-processed thin film or linear electric heating element. The far-infrared conversion medium (2) is composed of the heat-uniforming structure (1).
It is secured in the upper surface of the upper plate (1 _1), and the constituent material of the upper plate (1 ₁₎ of the soaking structure (1), and the resin of the far-infrared conversion medium (2) is the linear expansion coefficient Are substantially equal to each other, and the electric heating element (3) is disposed on or near the upper surface of the heat insulating body (4), and the electric heating element (3) and the heat insulating body (4) are equal to each other. The electric heating element (3) is inserted and stored in the hollow portion of the thermal structure (1), and the electric heating element (3) is positioned so as to be close to the lower surface of the upper plate (1 ₁ ) of the soaking structure (1). The terminal (5) is disposed on the front end surface and / or the rear end surface of the heat insulating body (4), whereby the far infrared conversion medium (2) and the heat equalizing structure (1) are provided.
Upper plate (1 ₁ ), electric heating element (3), and heat insulating body (4)
And a divided bottom plate (1 ₃ ) of the heat equalizing structure (1),
(1 ₃ ) is a layered structure in this order, and the far-infrared conversion medium (2) is the soaking structure (1).
The wavelength of the near-infrared heat transmitted from the upper plate (1 ₁ ) is 16μ.
A function of efficiently converting into far infrared rays in a wavelength region longer than m and radiating the far infrared rays to the outside is imparted, and the heat equalizing structure (1) is generated in the electric heating element (3), and is radiated and / or conducted. thereby selectively capture the near infrared heat legacy to the lower surface of the upper plate (1 _1), a function of soaking quickly the upper plate (1 ₁₎ by conduction, the cross-section of shape of the substantially flat C The shape provides a function of ensuring the mechanical strength of the entire floor heating panel unit and a function of protecting the electric heating element (3) and the heat insulating body (4) from external pressure, and ) Prevents downward diffusion of heat energy generated in the electric heating element (3) and promotes propagation of the heat equalizing structure (1) located above to the upper plate (1 ₁ ). The function of adding a plurality of far-infrared radiation floor heating panels Unit is on the floor, in series, parallel, or series-parallel to the aligned, the respective electrical heating elements (4), through the respective power supply terminals,
A far-infrared radiation floor heating panel with a large area that can be electrically connected in series, parallel, or series-parallel. 2. The heat equalizing structure (1) is configured such that a region near a pair of opposite sides of a pair of rectangular metal plates is bent downward at a substantially right angle in parallel to the side, and the side of the bent region is formed. The far-infrared radiation floor heating panel according to claim 1, wherein the near region is bent further inward at a right angle in parallel with the side. 3. The far infrared conversion medium (2) comprises a layered body of the resin and the ceramic powder.
Far infrared radiation floor heating panel described. 4. The far infrared radiation floor heating panel according to claim 1, wherein the ceramic powder comprises Al ₂ O ₃ based ceramic powder and / or NiO based ceramics powder. 5. The far infrared radiant floor heating panel according to claim 1, wherein an upper part of the heat equalizing structure (1) is made of an aluminum plate, and the resin is made of α-cellulose-filled urea resin. 6. The far infrared radiant floor heating panel according to claim 1, wherein an upper part of the heat equalizing structure (1) is made of a stainless steel plate, and the resin is made of a glass fiber-filled unsaturated polyester resin. 7. The far infrared radiant floor heating panel according to claim 1, wherein a large number of punching holes are formed in the side portion of the heat equalizing structure (1).