JP4330856B2 - Floor heating structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat pipe capable of being used by disposing in the horizontal state in which a heat transmission efficiency is good, manufacture is easy and the amount of an operation fluid is relatively small, and a heat release device using it. <P>SOLUTION: The electric heating lengthy plate-like heat pipe 4 is provided at the inside of a floor heating panel B, i.e., the heat release device in the horizontal state against a panel body. The heat pipe 4 has a pipe body 40 filled with the operation fluid 42 and provided with an upper surface part 41, i.e., a flat or substantially flat heat release surface; an electric heating wire 53 buried in an outer side of a part stored with the operation fluid 42 of the pipe body 40 in the state that a peripheral surface part is contacted with it. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor heating structure. More particularly, the present invention relates to a floor heating structure using a heat pipe that has good heat transfer efficiency, is easy to manufacture, requires relatively little hydraulic fluid, and can be used in a horizontal state. Further, the present invention relates to a floor heating structure using the heat pipe, which prevents an inconvenience that an operator gets caught in a power cord of a heat radiating device during the laying operation of the floor heating panel on the floor surface.
[0002]
[Prior art]
Generally, a heat pipe is a metal pipe that has been degassed in vacuum and filled with a small amount of a volatile working fluid (also referred to as a heat medium fluid or working fluid). When one end of the inclined heat pipe is heated, the internal working fluid evaporates and moves to the other end, where it dissipates heat, condenses, and returns to the one end again by gravity.
[0003]
Thus, the heat pipe continuously moves heat from the high temperature part on one end side to the low temperature part on the other end side by repeating evaporation, movement, condensation, and reflux of the working fluid.
[0004]
However, the above-described conventional heat pipe is configured so that the working fluid evaporated and condensed recirculates due to gravity. Therefore, when the heat pipe is provided, the gradient for recirculating the working fluid inevitably. Was needed. Therefore, when the heat pipe is disposed in a horizontal state, if there is a gradient, it is difficult to extend the heat pipe, and the heat radiation amount varies depending on the heat pipe arrangement direction. . Thus, the point which requires a gradient has been a factor for narrowing the application field of heat pipes.
[0005]
In response to this problem, one of the present inventors has proposed a heat pipe that can be used in a horizontal state in Japanese Patent Laid-Open No. 10-288482.
[0006]
FIG. 14 is an explanatory view showing the heat pipe, FIG. 14 (a) is an explanatory view of a longitudinal section of the heat pipe, and FIG. 14 (b) is an enlarged explanatory view of a transverse section of the heat pipe. As shown in the figure, this heat pipe 8 is a double pipe having a vacuum pipe 81 filled with a working fluid, and a heat source pipe 82 that penetrates in a state close to the inner peripheral surface of the vacuum pipe 81 and circulates hot water or the like inside. It has a structure.
[0007]
Further, FIG. 15 is an explanatory view of another heat pipe, FIG. 15 (a) is a longitudinal sectional view of the heat pipe, and FIG. 15 (b) is an enlarged explanatory view of the transverse cross section of the heat pipe. In the heat pipe 9, the heat source pipe 92 is provided in contact with the outer peripheral surface of the vacuum pipe 91 by a method such as welding.
[0008]
[Problems to be solved by the invention]
The heat pipe can be disposed and used in a horizontal state by allowing the working fluid to recirculate along the inner curved surface in the width direction rather than in the longitudinal direction of the vacuum pipe 81. Therefore, it can be used in various fields and is sufficiently practical. However, there remains room for further improvement in the following points.
[0009]
That is, since the heat pipe 8 shown in FIG. 14 has a double-pipe structure, it takes a lot of time to manufacture the heat pipe 8 and increases the cost.
[0010]
On the other hand, in the heat pipe 9 shown in FIG. 15 , since the heat source pipe 92 is provided on the outer peripheral surface of the vacuum pipe 91, its manufacture is relatively easy compared to the heat pipe shown in FIG. Since the contact area of the heat source pipe 92 is small, there is a drawback that heat transfer efficiency is poor. Further, unlike the heat pipe 8 shown in FIG. 14 , since the heat source pipe 92 is not embedded in the working fluid, there is no working fluid excluded by the heat source pipe 92. Needed.
[0011]
(Object of invention)
It is an object of the present invention, good heat transfer efficiency, it is easy to manufacture, also hydraulic fluid also requires relatively small, yet using Hitopai flop that can be used by arranging a horizontal state, and the running cost It is providing the floor heating structure which can be reduced .
Another object of the present invention is to prevent an inconvenience that an operator gets caught in the power cord of the floor heating structure during the laying work on the floor surface in the floor heating structure using the heat pipe. is there.
[0012]
[Means for Solving the Problems]
The means of the present invention taken to achieve the above object are as follows.
The present invention
It is constructed by laying a plurality of panel-like floor heating panels between pre-constructed small joists and stretching the flooring on each floor heating panel,
The floor heating panel has a heat radiating plate located on the floor material side when installed under the floor material, and the heat radiating plate accommodates a power cord of the heating wire, a ground wire, and a connecting portion. The heat sink is provided with a heat pipe and a heat insulating material that surrounds the four sides of the heat pipe, and an insulating sheet is attached to the bottom side of the heat pipe and the heat insulating material,
The small joists are located in the corner portion constituted by the bottom surface of the heat sink and the side surface of the heat insulating material,
The heat pipe is
A closed pipe having a flat heat radiating surface in which a working fluid is enclosed and is in contact with the heat radiating plate from the bottom surface;
In the closed pipe, a heating wire embedded in a state where the peripheral surface portion is in contact with the outside of the portion where the working fluid is accumulated, and
This is a floor heating structure.
[0013]
The heat pipe used in the present invention can be suitably used for a heat radiating device such as a floor heating panel or a foot heater. It can also be disinfected by heating in the soil, agricultural house or planting tray, or in the ground, heating the soil in the agricultural house, heating the soil in the planting tray, or melting snow. It can also be suitably used for animal use, animal husbandry (for heating a produced piglet, etc.) and the like.
[0014]
(Work)
The heat pipe used in the present invention operates as follows.
The closed tube is heated by a heating wire provided outside the portion of the closed tube where the working fluid is accumulated. When heated, the working fluid evaporates, and the evaporated working fluid condenses on the ceiling and releases heat out of the closed tube. The condensed working fluid drops or moves downward along the inner wall surface and evaporates again when heated.
[0015]
In the present invention, the heating wire is embedded in a state where the peripheral surface portion is in contact with the outside of the portion of the closed pipe where the working fluid is accumulated. Thereby, compared with the case where the heating wire is simply brought into contact with the outer peripheral surface of the closing tube (so-called line contact state), the contact area between the closing tube and the heating wire can be increased. With such a configuration, heat is efficiently transferred from the heating wire to the working fluid in the closed tube, and heat loss is small.
[0016]
In the present invention, the heat radiating surface of the closing tube is flat or substantially flat. Therefore, if a metal heat radiating plate or the like is provided in contact with the heat radiating surface of the closing tube, the contact area between the closing tube and the heat radiating plate can be increased.
With such a configuration, the heat transfer efficiency of the heat pipe used in the present invention is good and there is little heat loss.
[0017]
From the above, if the amount of heat released from the heat pipe is used as a reference, the temperature of the heating wire can be lowered by a smaller amount of heat loss. Therefore, the floor heating structure according to the present invention can reduce the running cost.
[0018]
In the floor heating structure equipped with a housing part that houses the power cord provided between the heat pipes, the power cord can be housed so as not to be exposed from the surface of the radiator. It is possible to prevent the power cord from being disconnected or damaged by being caught in the power cord.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in more detail based on embodiments shown in the drawings.
[Embodiment 1] <Floor heating structure>
FIG. 1 is a schematic perspective view showing an embodiment of a floor heating structure according to the present invention, in which a part is sectioned or omitted so that the internal configuration can be understood.
[0020]
2 through 7 are explanation view of the floor heating panel is a thermal device release.
Specifically, FIG. 2 is a plan view explanatory view of the floor heating panel,
FIG. 3 is an enlarged explanatory view of the left side view of the floor heating panel,
FIG. 4 is a schematic enlarged explanatory view showing a cross section corresponding to the II portion of FIG. 2, and shows a state in which the insulating sheet on the bottom surface is separated.
FIG. 5 is a schematic enlarged explanatory view showing a cross section corresponding to the II-II portion of FIG.
FIG. 6 is a bottom view enlarged explanatory view of the floor heating panel, and shows a state in which the insulating sheet on the bottom surface is separated.
FIG. 7 is an enlarged perspective explanatory view showing a housing portion of the floor heating panel.
[0021]
As shown in FIG. 1, the floor heating structure A lays a plurality of floor heating panels B (see FIG. 2), which are panel-shaped heat dissipation devices, between pre-installed small joists 1,. It is configured by stretching flooring floors 2... Which are bodies (floor materials). Reference numeral 3 in FIG. 1 denotes a controller of the floor heating panel B.
[0022]
The floor heating panel B will be described with reference to FIGS.
As shown in FIGS. 2 and 3, the floor heating panel B is formed in an elongated rectangular shape in plan view. In the present embodiment, the size of the floor heating panel B is about 300 mm in length, about 1800 mm in length, and about 13.3 mm in thickness, but is not particularly limited to this dimension.
[0023]
In addition, for example, the floor heating panel B can have several lengths such as 700 mm, 1800 mm, 2700 mm, etc., and a panel having a length suitable for the construction area can be appropriately selected. Further, a plurality of types of panels having different lengths can be used in combination.
[0024]
Inside the floor heating panel B, as shown in FIGS. 2, 4 and 6, an electrothermal and elongated plate-like heat pipe 4 is provided in a horizontal state with respect to the panel body. The heat pipe 4 is located at a substantially central portion in the width direction of the floor heating panel B.
[0025]
In FIG. 4, the upper surface portion 41 of the heat pipe 4 is in contact with the aluminum heat radiating plate 51 constituting the surface portion of the floor heating panel B from the bottom surface side. In addition, when the panel B for floor heating is installed under the flooring floor 2, the heat sink 51 is located in the flooring floor 2 side. The heat pipe 4 is heated from the bottom surface side by the heat pipe 4 and radiates heat to the top surface side. In addition, the heat sink 51 can also use other metals and alloys, such as copper and stainless steel.
[0026]
As shown in FIG. 4, the heat pipe 4 is covered with an aluminum tape 52 (not shown in FIG. 6) from the bottom side. Thereby, the heat conduction from the heat pipe 4 to the heat sink 51 is enhanced. The detailed structure of the heat pipe 4 will be described later.
[0027]
4 and 6, reference numeral 53 indicates a heating wire (also referred to as a heater wire) of the heat pipe 4, reference numeral 54a indicates a plate-shaped temperature sensor, and reference numeral 54b indicates a bar-shaped temperature sensor. Reference numerals 56a, 56b, 56b, 56c, and 56d denote heat insulating materials that are foams.
[0028]
As shown in FIG. 6, the heat pipe 4 is accommodated in the space 10 surrounded on all sides by the heat insulating materials 56a, 56b, 56b, and 56c. The heat insulating materials 56b and 56b are long plate-like and are located on both sides of the heat pipe 4 in the short side direction. The heat insulating materials 56 a and 56 c are located on both sides of the heat pipe 4 in the longitudinal direction. The heat insulating material 56a is provided with grooves 561 and 561 in which the power cords 71a and 71a of the heating wires 53 and 53 are embedded (embedded). The heat insulating material 56d has a long plate shape and is provided at the left end in FIG.
[0029]
As shown in FIG.4 and FIG.6, the insulating sheet 57 provided with the adhesion layer is attached to the bottom face side of the heat pipe 4 over the whole. This insulating sheet 57 also has heat insulating properties and waterproof properties.
[0030]
In FIG. 4, small joists 1 (see FIG. 1) provided in advance on corner floors 50 and 50 (portions constituted by the bottom surface side of the heat radiating plate 51 and the side surface side of the heat insulating material 56a) on the floor floor of the house. Is located.
[0031]
As shown in FIG. 2 and FIG. 7, on one side of the floor heating panel B in the longitudinal direction (the left end side in FIG. 2), a storage portion 6 having a square shape in a plan view and a substantially “U” cross section is provided. . As shown in FIG. 7, the accommodating portion 6 accommodates the power cord 71a, the ground wire 71b, the connecting portion 531 and the like of the heating wire 53.
[0032]
Reference numeral 72a indicates a connector (with a lock function) of the power cord 71a, and reference numeral 72b indicates a connector (with a lock function) of the ground wire 71b. Reference numeral 73 denotes an accordion-shaped resin tube (also referred to as a CD tube) for storing the power cord 71a in a bundle. Reference numeral 541 indicates a code of the rod-shaped temperature sensor 54b shown in FIG. The accommodating portion 6 is closed by a substantially flat lid 61 so as to be opened and closed. The lid 61 is fixed by screws 611 and 611.
[0033]
As shown in FIG. 7, housing grooves 60 a and 60 b having a substantially U-shaped cross section are provided from the housing portion 6 to both long side portions 511 and 511 of the floor heating panel B. From one housing groove 60 a, the resin tube 73 on the left side in FIG. 7 is drawn out of the housing portion 6. When the floor heating panel B is installed side by side as shown in FIG. 1, the power cord 71a and the ground wire 71b in the resin pipe 73 are connected to the other accommodation groove 60b of the adjacent floor heating panel B. Into the housing 6. Thereafter, the power cords 71a and the ground wires 71b are connected to each other via connectors 72a and 72b.
Note that the cord 541 of the rod-shaped temperature sensor 54b is similarly pulled out from the housing groove 60b.
[0034]
FIG. 8 thru | or FIG. 11 is explanatory drawing which shows one Embodiment of the heat pipe used for this invention.
Specifically, FIG. 8 is a bottom view explanatory view of the heat pipe,
FIG. 9 is a side view of the heat pipe.
Note that the heat pipe 4 shown in FIGS. 8 and 9 is shown with a part of the intermediate portion omitted.
FIG. 10 is a front view explanatory view of the heat pipe,
FIG. 11 is a schematic explanatory view showing a cross section corresponding to the III-III portion of FIG.
[0035]
The heat pipe 4 will be described with reference to FIGS.
As described above, the heat pipe 4 includes the pipe body 40 that is a long and narrow rectangular closed tube in plan view. The size of the heat pipe 4 is 40 mm in length, 1530 mm in length, and 10 mm in thickness in FIG. 8, but is not particularly limited to this dimension.
[0036]
For example, it is possible to select several types of heat pipes having a length suitable for the size of the floor heating panel B by preparing several types of heat pipes 4 such as 430, 1230, 1530, and 2430 mm.
[0037]
As shown in FIG. 11, the pipe body 40 is a flat (oval-shaped) tubular body in a cross-sectional view, both upper and lower surfaces are substantially parallel, and both left and right sides are formed in a circular arc shape.
The pipe body 40 is formed of a material having good thermal conductivity, such as aluminum, copper, stainless steel, ceramics, and the like, and the inside is a vacuum and a liquid working fluid 42 that is easily evaporated is enclosed.
[0038]
Examples of the working fluid include alcohols such as ethanol and methanol. Moreover, what mixed silica gel with the working fluid can also be used.
[0039]
In FIG. 11, the upper surface portion 41 of the pipe body 40 is formed by a flat or substantially flat surface, and constitutes a heat radiating surface. As a result, as shown in FIG. 4, the contact area between the pipe body 40 and the heat radiating plate 51 can be increased, and the heat transfer efficiency from the heat pipe 4 to the heat radiating plate 51 is increased.
[0040]
On the other hand, as shown in FIG. 8, the heating wire 53 is provided in a U-shaped manner on the bottom surface side of the pipe body 40. Specifically, as shown in FIG. 11, groove portions 43, 43 having a substantially U-shaped cross section along the longitudinal direction of the heat pipe 4 are arranged in parallel on the bottom surface portion of the pipe body 40. About half of the outer peripheral surface of the heating wire 53 is embedded (embedded) in the grooves 43 and 43 over substantially the entire periphery of the pipe body 40. That is, the heating wire 53 is embedded in the state where the peripheral surface portion is in contact with the outside of the portion where the working fluid 42 is accumulated. Thereby, compared with the case where the heating wire 5 is simply brought into contact with the outer peripheral surface of the pipe body 40 (so-called line contact state), the contact area between the heating wire 53 and the pipe body 40 is increased, and the heat from the heating wire 53 is used as the working fluid. To communicate efficiently.
[0041]
The number of heating wires 53 embedded in the pipe body 40 may be two or more. Moreover, the shape of the groove part 43 can also be formed in the cross-sectional substantially (omega) shape where the opening part of a groove | channel is narrow, or a cross-section substantially "U" shape.
Moreover, although not shown in figure, except the part which is contacting the pipe main body 40 among the heating wires 53, the heat-resistant process by glass fiber is given.
[0042]
In FIG. 8, what is formed in a rod shape on the right end side is a remaining portion 44 of the working fluid injection portion. That is, after the pipe body 40 is in a reduced pressure state, the working fluid is injected from a cylindrical working fluid injection portion (not shown). Thereafter, the remaining portion 44 is formed by crushing the working fluid injection portion.
[0043]
(Work)
FIG. 12 is an explanatory diagram for explaining the operation of the heat pipe, and the size of the heat pipe is slightly exaggerated so that the entire structure can be easily understood.
[0044]
While explaining the construction method of the floor heating structure (floor heating structure), the operation of the floor heating panel B and the heat pipe 4 (heat pipe device) will be described.
In this embodiment, the floor heating panel B is constructed under the flooring of the flooring, but it can also be constructed under a tatami mat or on a concrete floor.
[0045]
As shown in FIG. 1, first, the small joists 1,... Are applied to the floor base 100 at a required interval. Next, the floor heating panel B is placed and fixed between the small joists 1,. When constructing the floor heating panel B, as described above, the corner portions 50 and 50 (see FIG. 4) formed by the bottom surface side of the heat radiating plate 51 and the side surface portions of the heat insulating materials 56b and 56b Is configured to be positioned.
[0046]
The required number of floor heating panels B are arranged in the width direction or the longitudinal direction according to the construction area. The floor heating panel B is fixed by nailing or the like, but is not particularly limited thereto.
[0047]
As shown in FIG. 7, the cover 61 of the accommodating part 6 is removed, and the power cords 71a of the adjacent floor heating panels B and the ground wires 71b are connected via connectors 72a and 72b, respectively. Specifically, the power cord 71a and the ground wire 71b drawn from the housing groove 60a in FIG. 2 are introduced into the housing portion 6 from the housing groove 60b of the adjacent floor heating panel B, and the corresponding power cord 71a or ground wire is introduced. Each is connected to 71b. When the connection is completed, the lid 61 is closed and fixed with screws 611 and 611.
[0048]
Thus, after construction, the power cord 71a and the ground wire 71b are housed in the housing portion 6 and the housing grooves 60a and 60b so as not to be exposed from the floor heating panel B to the surface (from the surface of the heat sink 51). It has become. As a result, during the laying operation of the floor heating panel B, an operator may get caught in the power cord 71a and the ground wire 71b, and the power cord 71a and the ground wire 71b may be disconnected or damaged. Inconvenience is unlikely to occur.
[0049]
In addition, since the power cord 71a and the like are accommodated in the housing portion 6 and the housing grooves 60a and 60b, the power cord 71a and the heat pipe 4 move substantially up and down even when subjected to an impact due to a disaster such as an earthquake. do. Therefore, inconveniences such as the power cord 71a being detached from the floor heating panel B or being damaged are unlikely to occur.
[0050]
When the floor heating panels B,... Have been laid, the gaps between the parallel floor heating panels B,. Subsequently, the flooring floors 2,... Are stretched on the floor heating panel B to construct the floor heating structure A.
[0051]
Please refer to FIG.
In the heat pipe 4 used for the floor heating panel B, the groove portions 43 and 43 are arranged in parallel on the bottom surface portion of the pipe body 40, and a part of the heating wires 53 and 53 (not shown in this embodiment) About half of the area is embedded in the length direction of the pipe body 40 (embedded). Thereby, the contact area of the heating wire 53 and the pipe main body 40 becomes large compared with the case where the heating wire 43 is simply brought into contact with the outer peripheral surface of the pipe main body 40 (so-called line contact state). That is, since the working fluid 42 is present in about ½ around the heating wire 53, the heat from the heating wire 53 is efficiently transmitted to the working fluid. With such a configuration, by heating the working fluid 42 with the heating wire 53, the cycle of evaporation, condensation, and evaporation of the working fluid 42 is actively repeated, and the heating efficiency of the heat pipe 4 is improved.
[0052]
Further, unlike the conventional pipe shown in FIG. 14 , the heat pipe 4 does not have a double pipe structure, and is easy to manufacture. Further, unlike the conventional one shown in FIG. 15 , the bottom surface side of the heat pipe 4 is raised by the grooves 43, 43, so that the bulk increases and the working fluid can be reduced. And since it can arrange | position in a horizontal state, it can be used conveniently also for thin-type heat radiating devices, such as a floor heating panel.
[0053]
In addition, as shown in FIG. 1, in the present embodiment, the floor heating panel has been described by taking as an example a type of floor heating panel that is dropped between the small root joists 1 and 1 provided on the floor surface. A type that can be used by simply laying it on a concrete surface or the like where it is not possible to provide a cover can also be given as an example.
[0054]
FIG. 13 is a schematic explanatory view showing an embodiment of the floor heating type floor heating panel. Unlike the floor heating panel B shown in FIG. 4, the floor heating panel B <b> 1 is provided with heat insulating materials 56 d and 56 d on both left and right sides up to both ends in the width direction of the radiator plate 51 in FIG. 13. And at the time of construction, it arranges in parallel on the floor surface so that both the side surface parts 560 and 560 of the width direction of panel B1 for floor heating may mutually contact.
[0055]
Note that the terms and expressions used in this specification are merely explanatory and are not restrictive, and do not exclude terms and expressions equivalent to the above terms and expressions. The present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the technical idea.
[0056]
Furthermore, in the claims, the reference numerals used in the drawings are described in parentheses in order to understand the contents of the claims, but the claims are not limited to those described in the drawings. Absent.
[0057]
【The invention's effect】
The present invention has the above-described configuration and has the following effects.
(A) According to the heat pipe used in the present invention, the heating wire is embedded in the closed pipe in the state where the peripheral surface portion is in contact with the outside of the portion where the working fluid is accumulated. Thereby, compared with the case where the heating wire is simply brought into contact with the outer peripheral surface of the closing tube (so-called line contact state), the contact area between the closing tube and the heating wire can be increased. Also, since the heat dissipation surface of the pipes body is flattened or substantially flat, by providing in contact with the metal heat dissipation plate or the like on the heat radiating surface of the closure tube, the contact area between the closure tube and the heat sink Can be taken widely. With such a configuration, the heat transfer efficiency of the heat pipe is good and the heat loss is small. Therefore, the floor heating structure according to the present invention can reduce the running cost.
[0058]
(B) In the floor heating structure provided with an accommodating portion for accommodating the power cord provided between the heat pipes, the power cord can be accommodated so as not to be exposed from the surface of the panel body. An operator can prevent the power cord from being disconnected or damaged by getting on the power cord.
[Brief description of the drawings]
Schematic perspective view showing an embodiment of the engagement Ru floor heating structure in the present invention; FIG.
FIG. 2 is an explanatory plan view of a floor heating panel.
FIG. 3 is a left side enlarged explanatory view of a floor heating panel.
4 is a schematic enlarged explanatory view showing a cross section corresponding to the II portion of FIG. 2; FIG.
FIG. 5 is a schematic enlarged explanatory view showing a cross section corresponding to the II-II portion of FIG. 2;
FIG. 6 is an enlarged explanatory view of the bottom surface of the floor heating panel.
FIG. 7 is an enlarged perspective explanatory view showing a storage portion of the floor heating panel.
FIG. 8 is a bottom view explanatory view of a heat pipe.
FIG. 9 is a side view explanatory view of a heat pipe.
FIG. 10 is a front view explanatory view of a heat pipe.
FIG. 11 is a schematic explanatory view showing a cross section corresponding to the III-III portion of FIG. 8;
FIG. 12 is an explanatory diagram for explaining the operation of a heat pipe.
FIG. 13 is a schematic explanatory view showing an embodiment of a floor laying type floor heating panel.
FIG. 14 is an explanatory view showing a conventional heat pipe.
FIG. 15 is an explanatory view showing another conventional heat pipe.
[Explanation of symbols]
A floor heating structure B floor heating panel 1 small root 2 flooring floor 3 controller 4 heat pipe 40 pipe main body 41 upper surface part 42 working fluid 43 groove part 44 remaining part of heat medium injection part 50 corner part 51 heat sink 511 long side part 52 tape 53 heating wire 531 connecting portions 54a, 54b temperature sensor 56,56a, 56b, 56c, 56 d sectional heated material 560 side portion 57 insulating sheet 6 accommodating portion 60a, 60b groove 61 lid 71a power cord 71b earth wire 72a, 72b connector 73 Resin pipe 100 Floor base 60,60 Groove 611 Screw

Claims (1)

A plurality of panel-like floor heating panels (B) are laid between pre-installed small joists (1, 1 ...), and floor materials (2, 2 ...) are placed on the respective floor heating panels (B). It is configured by stretching,
The floor heating panel (B) has a heat radiating plate (51) positioned on the floor material (2, 2 ...) side when installed under the floor material (2, 2 ...), and the heat radiating plate ( 51) is provided with a housing part (6) in which the power cord (71a) of the heating wire (53), the ground wire (71b) and the connection part (531) are housed, and the heat sink (51) A heat pipe (4) and a heat insulating material (56a, 56b, 56c, 56d) surrounding the heat pipe (4) are provided, and the heat pipe (4) and the heat insulating material (56a, 56b, 56c, 56d) An insulation sheet (57) is attached to the bottom side,
The small joists (1, 1 ...) are located in the corner portion (50) constituted by the bottom surface of the heat radiating plate (51) and the side surface of the heat insulating material,
The heat pipe (4)
A closed pipe (40) having a flat heat radiating surface (41) sealed with a working fluid (42) and in contact with the heat radiating plate (51) from the bottom surface;
In the closed pipe (40), a heating wire (53) embedded in a state where the peripheral surface portion is in contact with the outside of the portion where the working fluid (42) is accumulated, and
have,
Floor heating structure.

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