JP3191968B2 - Floor heating members - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor heating member laid on a floor in a room to heat the floor.

[0002]

2. Description of the Related Art In a conventional floor heating member, a surface material such as a flooring or a carpet is mounted on a heat generating panel at the time of construction. Not only is the construction difficult, but also the thermal resistance of the surface material is reduced. It was large and the rise of floor surface temperature was slow. On the other hand, there has been proposed a floor heating member in which a heater (heating element) is integrated to improve workability and a rise in floor surface temperature (heat-up characteristic) (actual opening 62).
-63315, Japanese Utility Model Application Laid-Open No. 62-88211). However, since the heat insulation work is required under the floor heating member, the workability as a whole is not so much improved, and it is hard to say that the rise of the floor surface temperature has been sufficiently improved.
In addition, it is difficult to apply in a case where the space under the floor is limited as in an apartment house (a condominium or the like). I mean,
This is because sufficient heat insulation construction is difficult. This is because, if the space under the floor is limited, if sufficient heat insulation is performed, the floor surface becomes extremely high, and the interior doors cannot be opened or the ceiling height becomes too low, resulting in inconvenience.

[0003]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides a floor with built-in heat insulating material, which has excellent workability, has excellent temperature-raising characteristics, high thermal efficiency, and is thin and suitable. It is an object to provide a heating member (floor heating panel).

[0004]

In order to solve the above problems, a floor heating member (floor heating panel) according to the present invention comprises:
A surface plate, a bottom plate, and a frame member surrounding a space interposed therebetween; a heat insulating material, a surface heating element and a soaking plate, and a surface heating element between the heat insulating material and the soaking plate. It is arranged in order from the bottom so as to be located, and as the heat insulating material, a heat insulating sheet made of a microporous body formed by molding ultrafine particles is used, and a cushion for improving soundproofness is provided on the back side of the bottom plate.
Is installed on the back of the bottom plate to improve soundproofing.
With a rubber-like silicone
The resin is applied.

In the floor heating member of the present invention, the microporous body of the heat insulating material is usually wrapped in a thin sheet such as paper or film, and the film is impermeable and the microporous body is evacuated under reduced pressure. There is also a hermetically sealed configuration. When the microporous body is hermetically sealed under reduced pressure, the degree of reduced pressure is 1
It is preferably at most 00 torr. It is preferable that at least a part of the ultrafine particles constituting the microporous body is ultrafine particles that have been subjected to an anti-agglomeration treatment, and the heat insulating material is preferably arranged immediately below the surface heating element.

[0006] In the case of a floor heating member, soundproof performance is also important. Attach cushioning material to the back side of the bottom plate, or interpose a sheet-like cushioning material between the surface plate (surface decoration material) and the burning plate, or use both cushioning materials.
If in so that it provided increased soundproof performance. Hereinafter, the present invention will be described in more detail. FIG. 1 shows a specific configuration example of a floor heating member according to the present invention, with a part thereof broken away.

As shown in FIG. 1, the floor heating member of the present invention includes a surface plate 1, a bottom plate 2, and a frame member 3 surrounding a space interposed therebetween, and a heat insulating material is provided in the space. 11
And the surface heating element 12 and the heat equalizing plate 13 are arranged and integrated in order from the bottom so that the surface heating element 12 is located between the heat insulating material 11 and the heat equalizing plate 13. In the case of the floor heating member of FIG. 1, the bottom plate 2 and the frame member 3 are integrally formed to form a frame structure. It goes without saying that the frame member 3 and the bottom plate 2 may be formed separately and the frame member 3 may be attached to the bottom plate 2. The bottom plate 2 and the frame member 3 are usually made of plywood, muk board, particle board, inorganic board and the like. The frame material 3 includes the surface heating element 12 and the heat insulating material 1 inside thereof.
It works to greatly reduce the force applied to 1.

As shown in FIG. 2, the heat insulating material 11 is a heat insulating sheet in which a microporous body 21 formed by molding ultrafine particles 20 is hermetically sealed under a reduced pressure by a non-permeable (gas-blocking) film 22. (Thin plate-like body) with a compressive strength of 5k
g / cm ² or more, preferably 10 kg / cm ² or more is used. That is, the heat insulating material 11 is made of the ultrafine particles 2.
The microporous body 21 obtained by compression-molding the microporous body 21 is used as a base material.
No. 6), this microporous body 21 has good heat insulating properties and sufficient load resistance. In the center of the heat insulating material 11, a wiring housing (space) 10 for housing a temperature sensor, an overheat prevention element, a temperature fuse, and a wiring lead wire.
There are those things installed.

FIG. 3 shows another configuration example of the floor heating member of the present invention. In the floor heating member of FIG. 3, the cushion material 4 is provided on the back side of the bottom plate 2, and the heat insulating material 11 is formed by covering the microporous body with a breathable bag material. It has substantially the same configuration except that it differs from the floor heating member of FIG. 1 in two points in the state. The heat insulating material 11 of the floor heating member in FIG. 3 is a microporous body obtained by compression-molding ultrafine particles, and is at least partially covered with a bag material having air permeability enough to prevent the ultrafine particles from scattering. , The compressive strength is 5 kg / cm ² or more, preferably the compressive strength is 10 kg
/ Cm ² or more is used.

[0010] The floor heating member of the present invention is not limited to the structure shown in Figs. The cushioning material 4 is provided on the back side of the bottom plate 2 of the floor heating member of FIG. 1, or the non-breathable film used for the floor heating member of FIG. May be in a reduced pressure state covered with a microporous body. In addition, the cushion material 4 may be attached to the entire back surface of the bottom plate 2 or may be partially attached.

In the floor heating member of the present invention, the heat insulating material 11 is generally preferably disposed immediately below the surface heating element 12.
That is, it is preferable that the heat insulating material 11 and the surface heating element 12 are in direct contact with each other, as shown in FIG. 4, by bringing the thin non-combustible paper 15 having a thickness of at most less than 0.5 mm into close proximity. The depth of the wiring housing 10 may be smaller than the thickness of the heat insulating material 11 as shown in FIG. 4, or may be the same depth as the thickness of the heat insulating material 11 as shown in FIG.

Further, a sheet-like cushion material 16 may be interposed between the surface plate 1 and the heat equalizing plate 13. Also, as shown in FIG. 7, a fitting concave portion 25 is provided on one of the opposed side surfaces of the frame member 3 of the floor heating member, and a fitting convex portion 26 is provided on the other side. It is also useful to adopt a configuration in which the floor heating members are connected together. Examples of the ultrafine particles forming the microporous body include ultrafine silica, a dry product of colloidal sol, aerogel, polysilicic acid by a dry manufacturing method or a wet manufacturing method, and those obtained by subjecting their surfaces to an aggregation preventing treatment.

The particle size of the ultrafine particles (the particle size after the treatment for preventing aggregation) is preferably in the range of 1 to 20 nm. You may make it mix and use the ultrafine particle which did not carry out the aggregation prevention treatment on the surface and the ultrafine particle which did not carry out the aggregation prevention treatment. Examples of the anti-agglomeration treatment include those which bind to the OH of the silanol group on the particle surface to prevent the occurrence of hydrogen bonding, and those which provide repulsion between the particles to directly prevent the aggregation of the particles. As specific examples, organic silane compounds, for example, trimethylmethoxysilane, dimethyldiethoxysilane, alkoxysilane compounds such as methyltrimethoxysilane, monomethyltrichlorosilane, dimethyldichlorosilane, trimethylchlorosilane, chlorosilane compounds such as triphenylchlorosilane, Examples include, but are not limited to, silazane compounds such as hexamethyldisilazane and dimethyltrimethylamine.

Further, in addition to the ultrafine particles, fine particles having an improved moldability and a high radiation preventing effect may be mixed with the ultrafine particles and molded. These fine particles have a primary particle size larger than that of the ultrafine particles and a particle size of 20 to 10000 n.
m is good and the thermal emissivity is large, especially
Those having a thermal emissivity of 0.8 or more in an infrared region having a wavelength of 3 μm or more are preferable.

The reason why the fine particles are used to improve the moldability is considered to be that the ultrafine particles and the fine particles have a function of keeping the molding pressure uniform by dispersing and absorbing the molding pressure with each other. Can be Specific examples of the fine particles include finely pulverized pearlite and shirasu balloons, inorganic layered compounds such as soot, cordierite and clay, diatomaceous earth, calcium silicate, carbon black, SiC, TiO ₂ , Zr
O, CrO ₂ , Fe ₃ O ₄ , CuS, CuO, Mn
O ₂ , SiO ₂ , Al ₂ O ₃ , CoO, Li ₂ O, Ca
Fine powder such as O.

Fibers (fine particles may be added at the same time) may be added to the ultrafine particles for molding. The strength of the microporous body is increased, and the heat insulator becomes easier to handle. Examples of the fibers to be added include inorganic fibers and organic fibers such as ceramic fibers, glass fibers, rock wool fibers, asbestos fibers, carbon fibers, and aramid fibers.

The amount of addition is 20 wt.
% Or less, and the fiber diameter is preferably 30 μm or less, more preferably 5 μm or less. Fiber length is 50
mm or less is preferable. The microporous body may be covered with a non-breathable film and hermetically sealed under reduced pressure.
The non-breathable film (gas barrier film) preferably has a multilayer structure, has a heat resistance of 80 ° C. or more, and has a suitable heat seal. In addition to the vinylidene chloride-based film, a polyethylene-vinyl alcohol-based, polyester-based film, and a laminate film having an aluminum vapor-deposited film or the like as a gas barrier layer may be used. More specifically, between a heat-fusible plastic layer made of polyethylene, polypropylene or the like and a surface protective plastic layer made of polyethylene terephthalate, stretched polyamide, stretched polypropylene or the like, polyvinylidene chloride, polyethylene vinyl alcohol, polyester
And a laminated film having a gas-barrier plastic layer such as an aluminum vapor-deposited film and an aluminum foil or a metal layer interposed therebetween.

The degree of pressure reduction is usually 100 torr or less (1
More preferably, the pressure is about 10 torr or less (higher vacuum condition of 10 torr or less). In some cases, the microporous body of the heat insulating material 11 is at least partially covered with a bag material having air permeability such that ultrafine particles are not scattered. Examples of the bag material include glass cloth, paper, and organic nonwoven fabric. (Polyester, polyethylene, polypropylene, pulp, masa, a mixture thereof, etc.) and an air-permeable sheet of an inorganic nonwoven fabric (glass, ceramics, etc.), which is entirely or partially formed. It goes without saying that the sheet must not be such that the ultrafine particles can easily pass through, or just fit in at first, but then escape.

Examples of the surface heating element 12 include a film heater type, a line heater type, and the like. From the viewpoint of thermal efficiency and thickness, a surface heating element having a high suitability for thinness such as a film heater type is preferable. The heat equalizing plate 13 is for uniformly conducting the heat of the heat generating element to the surface plate and protecting the heat generating element, and is a metal plate such as a steel plate, an aluminum plate, or a copper plate having a high thermal conductivity. Alternatively, a ceramic plate or the like can be used.

As the surface plate 1 to be stuck on the top, a wood board or a decorative board such as a plywood, a muk board or a particle board, or a resin board such as an FRP is used. These may be subjected to a resin impregnation (WPC) treatment, a coating treatment, or the like as necessary. As the cushion material 4,
Polyethylene foam, foam rubber, felt, non-woven fabric,
There are rubber and the like and composite materials thereof, and those having an uneven shape on one surface are preferable. Seat cushion material 16
Examples thereof include polyethylene foam, foamed rubber, felt, nonwoven fabric, rubber and the like, and composite materials thereof, and those having a smooth surface shape on both sides and having heat resistance of 50 ° C. or more are preferable.

The floor heating member of the present invention is usually used in such a manner that a plurality of floor heating members are arranged adjacent to each other on a floor base such as concrete or a control panel .

[0022]

According to the floor heating member of the present invention, the heat insulating material is a microporous body formed by molding ultrafine particles and has a sufficiently high heat insulating property even if the thickness is small. The temperature characteristics and thermal efficiency are improved, and the heat insulation construction can be omitted. In addition, since it is a heat-insulating material built-in type, it can be easily constructed by the work of laying the floor heating member on the floor surface, so that the workability is extremely good. It has an extremely low thermal conductivity that is lower than that of still air even at normal pressure.

In the case where the microporous body is hermetically sealed under reduced pressure with a non-porous film, there is an advantage that high heat insulation can be easily secured. When the base material of the heat insulating material is a microporous body, even if the pressure is reduced to a low level (degree of vacuum), the effect of improving the heat insulating property appears remarkably. There is almost no need to worry.

In recent years, with the demand for diversification and upgrading of the surface plate, the thermal resistance of the material above the heating element such as the surface plate tends to increase. In some cases, it is difficult to perform such a process. In such a case, a material having a high performance in which the microporous body is sealed under reduced pressure can sufficiently cope with the problem. Since the heat insulating material has extremely high heat insulating properties even if it is thin, the thickness of the floor heating member itself can be reduced, so that it can be applied without any problem even when the space under the floor of an apartment house or the like is limited.

Further, the microporous body obtained by compression-molding ultrafine particles also has a load resistance required as a floor material, does not shrink or break, and can maintain a stable heating function for a long time. . When ultra-fine particles that have been subjected to an anti-agglomeration treatment are used, they are excellent in water repellency and do not strongly bond (solid conduction becomes large) between particles due to compression or the like.
Even under high humidity, there is no condensation, and extremely stable thermal efficiency can be exhibited as a floor material.

The heat insulating material of the floor heating member of the present invention can have a smaller heat capacity than floor materials such as plywood and insulation board. By providing the heat insulating material, the rise of the floor surface temperature can be made extremely fast. The cushioning material on the back surface of the bottom plate and the cushioning material between the front plate and the soaking plate serve to enhance the soundproofing performance.

[0027]

Next, an embodiment of the present invention will be described. The present invention is not limited to the following embodiments. -Example 1-About 0.3 m x about 0.9 m for bottom plate and frame material
Using a Class I plywood having a thickness of 2 mm, the peripheral edge was cut at a depth of 7 mm while leaving a width of 25 mm, and processed into a frame structure. That is, the bottom plate and the frame member are integrally formed.

On the other hand, a heat insulating material was produced as follows. Silica alumina fiber [Nippon Steel Chemical Co., Ltd., SC Bulk # 110] with agglomeration-preventing silica (ultrafine particles manufactured by Tokuyama Soda Co., Ltd., Leolo Seal MT30) by a dry process.
0] was mixed and dispersed in an amount of 10 kg / cm ²
Compression molding at a pressure of 5 mm, put in a packaging material consisting of a gas barrier film (Asahi Kasei Kogyo Co., Ltd., Saran-UB # 25 vinylidene chloride film), heat seal under reduced pressure, and heat-insulate with a thickness of about 5 mm. I got The degree of vacuum is 2
It was 0 torr. The gas barrier film used here was a stretched nylon layer (for maintaining strength) / vinylidene chloride / acrylate copolymer resin layer (for gas barrier)
/ Three-layer laminate structure of ultra-low density polyethylene layer (for heat sealing).

Subsequently, a heat insulating material was placed in the frame material except for a storage part such as a temperature sensor. Then, the temperature sensor over, overheat protection device in the housing part, a thermal fuse, accommodating the wiring lead or the like. Then, a galvanized steel sheet (thickness 1 mm) is applied on the upper surface of the film-shaped heater with a capacity of 60 W , and an aluminum hydroxide paper (0.4 mm thickness) is heat-sealed on the back surface with a polyethylene film to be integrated and heat-insulated with the steel plate up. The material was placed so that it was directly below the heater. At this time,
The heater and the wiring lead were connected and housed in the storage part.

Then, a rubber-like silicone resin is applied on the steel plate, and a urethane-based adhesive is applied on the upper surface of the frame material, and a composite plate of a wood decorative veneer and a WPC-treated plywood is used as a surface plate. (3.3mm thickness), 5kg /
It was press-molded under a pressure of cm ² and integrated to obtain a floor heating member. The wiring leads for the heater and the sensor were drawn out from holes provided in advance on the side surfaces of the frame material.

The completed floor heating member is made of a wooden material having a width of 303 mm and a length of 909 mm, and is a thin type having a thickness of 15 mm. The floor heating member of Example 1 was sufficiently cured on a joist in a constant temperature bath (10 ° C.), and a temperature rise test was performed after the temperature was stabilized. Table 1 shows the test results.

[0032]

[Table 1]

As shown in Table 1, the floor heating member of Example 1 has extremely high temperature rising characteristics and thermal efficiency, does not require heat insulation construction, and has a low thermal resistance due to diversification and upgrading of the surface plate. It can also be seen that it can sufficiently cope with the increase.
It was also confirmed that the floor heating member of Example 1 could be handled with the same strength as a normal floor material.

Example 2 About 0.3 m × about 0.9 m for bottom plate and frame material
Using a type I plywood (1 × 3) having a thickness of 12 mm, the edge was cut to a depth of 7 mm leaving a 25 mm width at the periphery to form a frame structure. On the other hand, a heat insulating material was produced as follows. Agglomeration-preventing silica [ultrafine particles
Toyoyama Soda Co., Ltd., Leolo Seal MT30] is converted to polyester nonwoven fabric [Miki Special Paper Co., Ltd., Hyale 60H.
R] was filled into a bag material produced by heat-sealing the ends thereof, heat-sealed, formed into a package, and compression-molded at a pressure of 10 kg / cm ² , and this was placed leaving a wiring storage space.

Then, a film heater (thickness 0.3 mm,
(AC100V, 120W) Galvanized steel plate (1mm thick) on the upper surface, aluminum hydroxide paper (0.4mm thick) on the back surface
Were integrated by heat fusion and placed on a heat insulating material with the steel plate facing upward. Note that wiring components such as a lead wire and a sensor were previously installed in a storage space between heat insulating materials, and the lead wire was taken out from the frame portion.

Next, a surface plate (W) is placed on the integrated heating element.
Composite board of wood-treated decorative veneer type I plywood treated with PC: thickness 3m
m) was placed via an adhesive, press-molded and integrated. Thereafter, a cushion material having a corrugated surface on one side (composite material of a foam and a nonwoven fabric of natural rubber: 4 mm in thickness) was attached with the corrugated surface facing down. Thus, a wooden floor heating member having a thickness of 19 mm was obtained.

Example 3 For a bottom plate and a frame material, a class I plywood having a thickness of 9 mm was cut at a depth of 6.5 mm, leaving an end portion, and processed into a frame structure. On the other hand, the heat insulating material was produced as follows. In the same manner as in Example 2, a 5 mm-thick molded body was prepared from a coagulation-preventive silica (ultrafine particles manufactured by Tokuyama Soda Co., Ltd., HM50) by a dry production method.

Further, a galvanized steel plate (having a thickness of 0.1 mm) is used as the soaking plate.
5 mm), using a composite material of a 2 mm-thick WPC-treated veneer veneer and a plywood type I plywood for the surface plate (surface decorative material), and using the same procedure as in Example 2 except for the wooden material having a total thickness of 15 mm. A floor heating member was obtained. -Example 4-A sheet-like cushion material (synthetic rubber foam) having a thickness of 1 mm was inserted between a surface plate and a soaking plate through an adhesive, and the same procedure as in Example 2 was followed to obtain a total thickness of 20 mm. A wooden floor heating member was obtained.

Comparative Example 1 A wooden floor heating member having a total thickness of 15 mm in the same manner as in Example 2 except that the heat insulating material was replaced with plywood and the cushion material was removed in Example 2 I got The following tests were performed to examine the performance of the floor heating members of Examples 2 to 4 and Comparative Example 1.

The obtained floor heating member was directly attached to a 12 mm-thick control panel, and a temperature rise test was performed in an atmosphere at a temperature of 10 ° C. and a humidity of 50% RH, and the rise performance of the floor surface temperature and the heating efficiency were compared and evaluated. . Further, as for the panel of Comparative Example 1, a panel provided with a glass wool 10K having a thickness of 45 mm at the lower portion was similarly subjected to comparative evaluation. In addition, the heating efficiency was calculated | required by the following formula from the measured value of surface heat flow. Heating efficiency = (the amount of heat released from the floor surface) / (the total amount of heat input to the heat generating part) x 100 (%) The sound insulation function was measured using a tapping machine to measure the sound insulation function of a lightweight floor impact sound, and a comparative evaluation was made. . Table 2 shows the measurement results. The soundproofing performance (lightweight impact) is based on JI
SA 1419 lightweight impact sound insulation rating ( _LL value unit D
B).

[0041]

[Table 2]

As can be seen from Table 2, the floor heating member of the embodiment has a very high temperature-raising characteristic while being thinner than the floor heating member of the comparative example. The efficiency at the initial stage is considerably higher than in the case where the air conditioner is in use, and is comparable to that in the steady state, and the heating performance is extremely high. The soundproofing performance is also a high level of L _L 50 level, and has a sufficient soundproofing performance while being thin.

Also, as for the strength, it has the same strength (compression bending) as a normal floor material. Furthermore, since a high-performance heat insulating material made of ultrafine particles subjected to a surface treatment is used, it is not affected by humidity (moisture) and has excellent stability without deterioration of heat insulating performance. Also, the lower cushion material absorbs the inclination of the unevenness of the floor base, so that it can be laid well.

Example 5 A type I plywood having a size of about 0.3 m × about 0.9 m and 3 mm is used as a bottom plate, and a type I plywood having a width of 25 mm is framed around an end on one side with an adhesive. Processed into a structure. In addition, the thickness was adjusted so that the built-in components (a soaking plate, a heater, aluminum hydroxide paper, a heat insulating material, and a silicone resin layer (thickness: 0.2 to 0.3 mm)) could be accommodated.

On the other hand, a heat insulating material was produced as follows. Agglomeration-preventing treated silica (ultrafine particles manufactured by Tokuyama Soda Co., Ltd., Leolo Seal MT30) by a dry manufacturing method is converted into a polyester nonwoven fabric [Miya Special Paper Co., Ltd., Hyale C60H]
R] was filled into a bag material produced by fusing the end portions by heat sealing, and two pieces each having a thickness of 5 mm, which were formed into a package and compression-molded (press-molded) at a pressure of 10 kg / cm ² were obtained. This was placed inside the frame material leaving the wiring storage space.

Next, a film heater (thickness 0.3 m)
m, AC100V 60W) on the top surface, galvanized steel plate (1mm thickness), on the back surface, aluminum hydroxide paper (0.4m thickness)
m) was integrated by heat fusion, and then placed on a heat insulating material with the steel plate facing up. The wiring components such as the lead wire and the sensor were previously set in a storage space provided between the heat insulating materials, and the lead wire was taken out from a hole formed by cutting out a part of the frame material.

After that, a surface plate (composite plate of WPC-treated veneer veneer and Class I plywood: 2.8 mm in thickness) was placed on a steel plate via an adhesive, and pressed and integrated.
As the adhesive, a urethane-based adhesive was used around the frame material, and a silicone resin-based rubber-like adhesive was used around the heating element. Thereafter, on the back side of the bottom plate, a cushion material (corrugated foam sheet made of natural rubber and a nonwoven fabric: a thickness of 5 mm, manufactured by Star Corporation) with a corrugated surface was attached with its corrugated rubber surface facing down. Thus, a wooden floor heating member having a thickness of 17 mm was obtained.

Example 6 A floor heating member was obtained in the same manner as in Example 5, except that the thickness of the heat equalizing plate was about 0.6 mm. -Example 7-A floor heating member was obtained in the same manner as in Example 5, except that the thickness of the surface plate was about 2.0 mm.

Example 8 A floor heating member was obtained in the same manner as in Example 7, except that the thickness of the heat equalizing plate was about 0.5 mm. -Example 9-A floor heating member was obtained in the same manner as in Example 7, except that the thickness of the heat equalizing plate was about 0.6 mm.

Examples 10 to 14 A floor heating member was obtained in the same manner as in Examples 5 to 9 except that a heat insulating material was produced as follows. Anti-agglomerated silica by dry manufacturing method [ultrafine particles manufactured by Tokuyama Soda Co., Ltd.
A mixture of 5 wt% of silica alumina fiber [SC Bulk # 1100, manufactured by Nippon Steel Chemical Co., Ltd.] mixed and dispersed in Reoloseal MT30], and a polyester non-woven fabric [Haile C60HR, manufactured by Miki Special Paper Co., Ltd.] is melted by heat sealing. Filled into bag material made by wearing, packaged and 10k
compression molding (press molding) at a pressure of g / cm ² , and further, into a bag material made of a non-permeable film (EVAL aluminum vapor deposition type manufactured by Kuraray Co., Ltd.), heat-seal (seal) under reduced pressure, and A heat insulating material of 5 mm was obtained. The internal air pressure of the heat insulating material is 20 torr. The air-impermeable film used here is a three-layer laminate of a polyethylene terephthalate layer (for maintaining strength) / aluminum-deposited ethylene / vinyl alcohol copolymer resin layer (for gas barrier) / ultra low density polyethylene layer (for heat sealing) Of structure.

Example 15 In the process of preparing the heat insulating material of Example 10, silica fine powder obtained by a wet method (Carplex # 80 manufactured by Shionogi Pharmaceutical Co., Ltd.) was used instead of the agglomeration-preventing silica by a dry method. A heat insulating material was obtained in the same manner except for using, and thereafter, a floor heating member was obtained in the same manner as in Example 5.

Example 16 A floor heating member was obtained in the same manner as in Example 7, except that the heat insulating material obtained in Example 15 was used. -Example 17-A floor heating member was obtained in the same manner as in Example 16 except that the heat-insulating material was not subjected to the reduced-pressure sealing structure.

The floor heating members of Examples 5 to 17 were placed on a joist, fully cured in a constant temperature bath (10 ° C.), and after the temperature was stabilized, a temperature rise test was performed to examine the heat insulation properties. . Also,
The soundproofing performance of each floor heating member was also measured. Table 3 shows the dimensions and the like of the floor heating members of Examples 5 to 17, and Table 4 shows the measurement results of the heat insulation and soundproof performance. The soundproofing performance (lightweight impact) is based on JIS
A 1419 lightweight impact sound insulation class ( _LL value unit D
B).

[0054]

[Table 3]

[0055]

[Table 4]

As can be seen from Tables 3 and 4, the floor heating members of Examples 5 to 17 are thin, have extremely high temperature rising characteristics and thermal efficiency, and do not require heat insulation. It also has sufficient soundproofing properties, making it very useful.

[0057]

According to the floor heating member of the present invention, the heat insulating property of the lower side of the surface heating element is extremely remarkable, so that the heating property and the thermal efficiency are excellent. Since it is a mold, the construction work is easy and extremely easy to work.Moreover, since the floor heating member itself can be made thinner, it can be applied without any problem even if the space under the floor is limited, so it is very practical Is high.

When the microporous body is hermetically sealed under reduced pressure, the temperature rise characteristics and the thermal efficiency are excellent. When the microporous body is made of ultrafine particles which have been subjected to an anti-agglomeration treatment, dew condensation may occur even under high humidity. In addition, there is an added advantage that the floor material exhibits extremely stable thermal efficiency. Furthermore, the combined use of the cushioning material has an additional advantage of improving the soundproofing performance.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first configuration example of a floor heating member according to the present invention in a partially broken manner.

FIG. 2 is an explanatory diagram showing a specific configuration example of a heat insulating material of a floor heating member of the present invention.

FIG. 3 is a perspective view showing a second configuration example of the floor heating member of the present invention with a part thereof broken away.

FIG. 4 is a sectional view showing a third configuration example of the floor heating member of the present invention.

FIG. 5 is a cross-sectional view illustrating a fourth configuration example of the floor heating member of the present invention.

FIG. 6 is a cross-sectional view illustrating a fifth configuration example of the floor heating member of the present invention.

FIG. 7 is a sectional view showing a sixth configuration example of the floor heating member of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Surface plate 2 Bottom plate 3 Frame material 11 Heat insulation material 12 Surface heating element 13 Heat equalizing plate 20 Ultrafine particles 21 Microporous body 22 Non-permeable film

Continuing on the front page (72) Inventor Masaru Yokoyama 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor Kazuhiro Tokuda 1048 Kadoma Kadoma, Kadoma City, Osaka Matsushita Electric Works (56) References JP-A-3-140718 (JP, A) JP-A-2-271194 (JP, A) JP-A-2-61435 (JP, A) JP-A-49-112015 (JP, U) JP-A-2-18845 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24D 13/02 H05B 3/20

Claims (6)

(57) [Claims] 1. A surface plate, a bottom plate, and a frame member surrounding a space interposed between the surface plate and the bottom plate, wherein a heat insulating material, a surface heating element and a heat equalizing plate are provided between the heat insulating material and the heat equalizing plate. Are arranged in order from the bottom so that the surface heating element is located at
As the heat insulating material, a heat insulating sheet made of a microporous body formed by molding ultrafine particles is used , and a soundproofing property is provided on the back side of the bottom plate.
Elevating cushioning material is attached, rubber on the soaking plate
Der Ru floor heating member that the Jo silicone resin is applied. 2. The floor heating member according to claim 1, wherein the microporous body is hermetically sealed with a non-permeable film under reduced pressure. 3. The floor heating member according to claim 2, wherein the degree of pressure reduction is 100 torr or less. 4. The floor heating member according to claim 1, wherein at least a part of the ultrafine particles are ultrafine particles that have been subjected to a coagulation preventing treatment in advance. 5. The floor heating member according to claim 1, wherein the heat insulating material is disposed immediately below the surface heating element. 6. The surface plate and the floor heating member according to any of the soaking plates from claim 1, the sheet-like cushion material is placed to 5.