JP2004092944A - Heat pipe and heat release device using it - 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]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a heat pipe and a heat radiating device using the same.
More specifically, the present invention relates to a heat pipe which has good heat transfer efficiency, is easy to manufacture, requires relatively little hydraulic fluid, and can be used in a horizontal state, and a heat radiating device using the same.
The present invention also relates to a radiator for floor heating using the heat pipe, which prevents an inconvenience such as an operator's stepping on a power cord of the radiator during a work of laying the radiator on a floor.
[0002]
[Prior art]
Generally, a heat pipe is a metal pipe in a vacuum degassed state filled with a small amount of a volatile working fluid (also referred to as a heating medium fluid or a working fluid). Then, when one end of the inclined heat pipe is heated, the working fluid inside evaporates and moves to the other end, where it is radiated, condensed, and returned to the one end by gravity again.
[0003]
As described above, the heat pipe continuously transfers heat from the high-temperature portion at one end to the low-temperature portion at the other end of the heat pipe by repeating evaporation, movement, condensation, and reflux of the working fluid.
[0004]
However, since the above-described conventional heat pipe has a configuration in which the working fluid evaporated and condensed returns by gravity, when the heat pipe is provided, a gradient for inevitably returning the working fluid is used. Was needed. Therefore, when disposing the heat pipe in a state where it is laid sideways, it is difficult to extend and provide the heat pipe if there is a gradient, and uneven heat radiation occurs depending on the disposition direction of the heat pipe. . Thus, the point that the gradient is required has been a factor that narrows the application field of the heat pipe.
[0005]
To solve this problem, one of the present inventors has proposed a heat pipe which can be disposed and used in a horizontal state in Japanese Patent Application Laid-Open No. 10-288482.
[0006]
16A and 16B are explanatory diagrams showing the heat pipe. FIG. 16A is a vertical cross-sectional view of the heat pipe, and FIG. 16B is an enlarged cross-sectional view of the heat pipe. As shown in the figure, the heat pipe 8 is a double pipe having a vacuum pipe 81 filled with a working fluid and a heat source pipe 82 penetrating in a state close to the inner peripheral surface of the vacuum pipe 81 and circulating hot water and the like inside. It has a structure.
[0007]
Further, FIG. 17 is an explanatory view of another heat pipe, FIG. 17 (a) is a vertical sectional view of the heat pipe, and FIG. 17 (b) is an enlarged horizontal sectional view of the heat pipe. The heat pipe 9 is provided with a heat source pipe 92 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 returning the working fluid not along the longitudinal direction of the vacuum pipe 81 but along the inner curved surface in the width direction. Therefore, it can be used in various fields and is sufficiently practical. However, there is room for further improvement in the following points.
[0009]
That is, since the heat pipe 8 shown in FIG. 16 has a double-pipe structure, it takes time and effort to manufacture the heat pipe 8, resulting in an increase in cost.
[0010]
On the other hand, in the heat pipe 9 shown in FIG. 17, since the heat source pipe 92 is provided on the outer peripheral surface of the vacuum pipe 91, the production is relatively easy as compared with the heat pipe shown in FIG. Since the contact area of the heat source pipe 92 is small, there is a disadvantage that heat transfer efficiency is poor. Further, unlike the heat pipe 8 shown in FIG. 16, since the heat source pipe 92 is not embedded in the working fluid, there is no working fluid eliminated by the heat source pipe 92, and a correspondingly large amount of working fluid Needed.
[0011]
(Object of the invention)
Therefore, an object of the present invention is to provide a heat pipe which has good heat transfer efficiency, is easy to manufacture, requires a relatively small amount of hydraulic fluid, and can be used in a horizontal state, and a heat radiating device using the same. Is to provide.
Another object of the present invention is to provide a heat dissipating device for floor heating using the above heat pipe, in which an operator may step on the power cord of the heat dissipating device during the work of laying the heat dissipating device on the floor. Is to prevent
[0012]
[Means for Solving the Problems]
Means of the present invention taken to achieve the above object are as follows.
In the first invention,
A closure tube filled with working fluid and provided with a flat or substantially flat heat dissipation surface;
A heating wire embedded in a state where the peripheral surface is in contact with the outside of the portion in which the working fluid is stored, of the closed tube,
Characterized by having
It is a heat pipe.
[0013]
In the second invention,
A panel-shaped radiator used for floor heating,
A heat pipe according to the first invention is provided as a heat radiating means.
It is a radiator.
[0014]
In the third invention,
A heat radiator is provided on the side of the cover when the heat radiator is installed under the cover, and a power supply cord provided between the heat pipes is provided with a housing portion for housing the power cord so as not to be exposed from the surface of the heat radiator. Characterized by the fact that
It is a heat dissipation device according to a second invention.
[0015]
In the fourth invention,
A heat dissipation device used to warm the feet,
A heat pipe according to the first invention is provided as a heat radiating means.
It is a radiator.
[0016]
In the fifth invention,
A heat pipe according to the first invention is provided as a heat radiating means.
It is a radiator.
[0017]
The heat pipe according to the present invention can be suitably used for a radiator such as a floor heating panel and a foot heater. It is also installed in soil, agricultural houses and planting trays, or placed in the ground to heat and disinfect the soil, heat the agricultural house, heat the soil in the planting trays, and melt snow. It can also be suitably used for breeding, livestock raising (for warming born piglets, etc.).
[0018]
(Operation)
The heat pipe according to the present invention operates as follows.
The closing tube is heated by a heating wire provided outside the portion where the working fluid is stored in the closing tube. When heated, the working fluid evaporates, and the evaporated working fluid condenses on the ceiling portion and releases heat outside the closed pipe. The condensed working fluid drops or travels down the inner wall surface and evaporates again when heated.
[0019]
In the present invention, the heating wire is buried outside the portion of the closed pipe where the working fluid is stored, with the peripheral surface thereof in contact with the portion. Thereby, the contact area between the closing tube and the heating wire can be increased as compared with a case where the heating wire is simply brought into contact with the outer peripheral surface of the closing tube (so-called line contact state). 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.
[0020]
Further, according to the present invention, the heat dissipation surface of the closed 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 widened.
With such a configuration, the heat pipe according to the present invention has good heat transfer efficiency and low heat loss.
[0021]
From the above, based on the heat radiation amount of the heat pipe, the temperature of the heating wire can be reduced by a small amount of heat loss. Therefore, if the heat pipe according to the present invention is employed in a heat radiating device such as a floor heating panel or a foot heater, the running cost can be reduced.
[0022]
In a floor heating radiator having a housing for accommodating a power cord provided between heat pipes, the power cord can be housed so as not to be exposed from the surface of the radiator, so during the work of laying the radiator, It is possible to prevent the power cord from being detached or damaged by the operator's stepping on the power cord.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention will be described in more detail based on the embodiments shown in the drawings.
[First Embodiment] <Floor heating structure>
FIG. 1 is a schematic perspective explanatory view showing an embodiment when a heat radiating device according to the present invention is used for a floor heating structure, in which a part of the internal structure can be understood by cross-section or omission. .
[0024]
2 to 7 are explanatory views showing an embodiment of a floor heating panel which is a heat radiating device according to the present invention.
Specifically, FIG. 2 is an explanatory plan view of a floor heating panel,
FIG. 3 is a left side view enlarged explanatory view of the floor heating panel,
FIG. 4 is a schematic enlarged explanatory view showing a cross section corresponding to the II section of FIG. 2, and shows a state where an insulating sheet on a bottom portion 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, showing a state in which an insulating sheet on a bottom portion is separated.
FIG. 7 is an enlarged perspective explanatory view showing an accommodation portion of the floor heating panel.
[0025]
As shown in FIG. 1, the floor heating structure A includes a plurality of floor heating panels B (see FIG. 2), which are panel-shaped heat radiating devices, laid between the pre-constructed small joists 1,. It is constituted by stretching flooring floors 2, which are bodies (floor materials). In FIG. 1, reference numeral 3 denotes a controller of the floor heating panel B.
[0026]
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 long, about 1800 mm long, and about 13.3 mm thick, but is not particularly limited to these dimensions.
[0027]
Further, for example, the length of the floor heating panel B may be set to several types such as 700 mm, 1800 mm, and 2700 mm, and a panel having a length suitable for the construction area may be appropriately selected. Further, a plurality of types of panels having different lengths can be used in combination.
[0028]
As shown in FIG. 2, FIG. 4, and FIG. 6, inside the floor heating panel B, an electrothermally elongated plate-like heat pipe 4 is provided in a horizontal state with respect to the panel body. The heat pipe 4 is located substantially at the center of the floor heating panel B in the width direction.
[0029]
In FIG. 4, the upper surface portion 41 of the heat pipe 4 is in contact with the aluminum radiator plate 51 constituting the surface portion of the floor heating panel B from the bottom surface side. The radiator plate 51 is located on the floor 2 when the floor heating panel B is installed under the floor 2. The heat pipe 4 heats the heat radiating plate 51 from the bottom side and radiates heat to the upper side. The heat radiating plate 51 may be made of another metal or alloy such as copper or stainless steel.
[0030]
As shown in FIG. 4, the heat pipe 4 is covered with an aluminum tape 52 (omitted in FIG. 6) from the bottom side. Thereby, heat conduction from the heat pipe 4 to the heat radiating plate 51 is enhanced. The detailed structure of the heat pipe 4 will be described later.
[0031]
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 rod-shaped temperature sensor. Reference numerals 56a, 56b, 56b, 56c, and 56d indicate a heat insulating material that is a foam.
[0032]
As shown in FIG. 6, the heat pipe 4 is accommodated in a gap 10 surrounded on all sides by heat insulating materials 56a, 56b, 56b, 56c. The heat insulators 56b, 56b have a long plate shape and are located on both sides in the short side direction of the heat pipe 4. The heat insulators 56a and 56c 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 for embedding (embedding) the power cords 71a and 71a of the heating wires 53 and 53. The heat insulating material 56d has a long plate shape and is provided at the left end in FIG.
[0033]
As shown in FIGS. 4 and 6, an insulating sheet 57 having an adhesive layer is attached to the entire bottom surface of the heat pipe 4. The insulating sheet 57 also has heat insulation and waterproofness.
[0034]
In FIG. 4, small joists 1 (see FIG. 1) provided in advance on a floor base of a house or the like are provided at corner portions 50, 50 (portions formed by the bottom surface side of the heat sink 51 and the side surfaces of the heat insulating material 56a). Is located.
[0035]
As shown in FIGS. 2 and 7, on one side (left end side in FIG. 2) in the longitudinal direction of the floor heating panel B, a housing section 6 having a substantially U-shaped cross section in a plan view is provided. . As shown in FIG. 7, the power supply cord 71a of the heating wire 53, the ground wire 71b, the connecting portion 531 and the like are housed in the housing portion 6.
[0036]
Reference numeral 72a indicates a connector of the power cord 71a (with a lock function), and reference numeral 72b indicates a connector of the ground wire 71b (with a lock function). Reference numeral 73 denotes a bellows-shaped resin tube (also referred to as a CD tube) that bundles and accommodates the power cords 71a. The code | symbol 541 has shown the code | cord of the rod-shaped temperature sensor 54b shown in FIG. The housing 6 is closed by a substantially flat lid 61 so as to be openable and closable. The lid 61 is fixed by screws 611 and 611.
[0037]
As shown in FIG. 7, accommodation grooves 60 a and 60 b having a substantially U-shaped cross section are provided from the accommodation portion 6 to both long side portions 511 and 511 of the floor heating panel B. The resin tube 73 on the left side in FIG. 7 is drawn out of the housing groove 60a from the housing groove 60a. When the floor heating panels B are 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. From the container 6. Thereafter, the power cords 71a and the ground wires 71b are connected to each other via the connectors 72a and 72b.
Note that the cord 541 of the rod-shaped temperature sensor 54b is similarly drawn out of the accommodation groove 60b.
[0038]
8 to 11 are explanatory views showing one embodiment of the heat pipe according to the present invention.
Specifically, FIG. 8 is a bottom view explanatory view of the heat pipe,
FIG. 9 is a side view explanatory view of the heat pipe.
In addition, the heat pipe 4 shown in FIG. 8 and FIG.
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.
[0039]
The heat pipe 4 will be described with reference to FIGS.
As described above, the heat pipe 4 includes the pipe main body 40 which is an elongated rectangular closed pipe in plan view. The size of the heat pipe 4 is 40 mm long, 1530 mm long, and 10 mm thick in FIG. 8, but is not particularly limited to these dimensions.
[0040]
For example, the length of the heat pipe 4 may be set to several types such as 430, 1230, 1530, and 2430 mm, and a heat pipe having a length corresponding to the size of the floor heating panel B may be selected.
[0041]
As shown in FIG. 11, the pipe main body 40 is a flat (elliptical) tubular body in a cross-sectional view, and 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 heat conductivity, for example, aluminum, copper, stainless steel, ceramics, or the like, and has a vacuum inside, and contains a liquid working fluid 42 that is easily evaporated.
[0042]
Examples of the working fluid include alcohol-based fluids such as ethanol and methanol. Further, a fluid in which silica gel is mixed in the working fluid can also be used.
[0043]
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 dissipation surface. Thereby, as shown in FIG. 4, the contact area between the pipe body 40 and the radiator plate 51 can be increased, and the efficiency of heat transfer from the heat pipe 4 to the radiator plate 51 is increased.
[0044]
On the other hand, as shown in FIG. 8, a heating wire 53 is provided on the bottom side of the pipe body 40 in a U-shaped manner. Specifically, as shown in FIG. 11, grooves 43 having a substantially U-shaped cross section are juxtaposed on the bottom surface of the pipe main body 40 along the longitudinal direction of the heat pipe 4. About one half of the outer peripheral surface of the heating wire 53 is buried (embedded) in the grooves 43 over substantially the entire circumference of the pipe body 40. That is, the heating wire 53 is embedded outside the portion where the working fluid 42 is stored, with the peripheral surface portion in contact therewith. Thereby, the contact area between the heating wire 53 and the pipe body 40 becomes larger than when the heating wire 5 is simply brought into contact with the outer peripheral surface of the pipe body 40 (so-called line contact state), and the heat from the heating wire 53 is transferred to the working fluid. To be transmitted efficiently.
[0045]
The number of the heating wires 53 embedded in the pipe body 40 may be two or more. Further, the shape of the groove 43 may be formed in a substantially Ω-shaped cross section or a substantially “U” cross-section in which the opening of the groove is narrow.
Although not shown, the heating wire 53 is heat-treated with glass fiber except for the portion in contact with the pipe body 40.
[0046]
In FIG. 8, what is formed in the rod shape on the right end side is the remaining portion 44 of the working fluid injection portion. That is, after the pipe body 40 is depressurized, the working fluid is injected from a cylindrical working fluid injection unit (not shown). Thereafter, the remaining portion 44 is formed by crushing the working fluid injection portion.
[0047]
(Operation)
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.
[0048]
The operation of the floor heating panel B and the heat pipe 4 (heat pipe device) will be described while explaining the method of constructing the floor heating structure (floor heating structure).
In the present embodiment, the floor heating panel B is installed under the floor of the flooring, but it can also be installed under a tatami floor or a concrete floor.
[0049]
As shown in FIG. 1, small joists 1,... Next, the floor heating panel B is placed and fixed between the small joists 1,. When the floor heating panel B is constructed, as described above, the small joists 1 are attached to the corner portions 50, 50 (see FIG. 4) formed by the bottom surface of the heat sink 51 and the side surfaces of the heat insulators 56b, 56b. Is configured to be located.
[0050]
A 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.
[0051]
As shown in FIG. 7, the lid 61 of the housing portion 6 is removed, and the power cords 71a of the adjacent floor heating panels B and the ground wires 71b are connected to each other via the connectors 72a and 72b. Specifically, the power cord 71a and the ground wire 71b drawn out of 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. 71b. When the connection is completed, the lid 61 is closed and fixed with screws 611 and 611.
[0052]
In this way, after the construction, the power cord 71a and the ground wire 71b are housed in the housing portion 6 and the housing grooves 60a, 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. Accordingly, during the work of laying the floor heating panel B, the worker may get caught on the power cord 71a and the ground wire 71b, and the power cord 71a and the ground wire 71b may be detached or damaged. Inconvenience is unlikely to occur.
[0053]
In addition, since the power cord 71a and the like are accommodated in the housing portion 6 and the housing grooves 60a and 60b, even if the power cord 71a and the like and the heat pipe 4 are shocked by a disaster such as an earthquake, the power pipe 71a and the heat pipe 4 move substantially up and down. do. Therefore, inconveniences such as the power cord 71a being detached from the floor heating panel B or being damaged are unlikely to occur.
[0054]
When the floor heating panels B have been laid, the gaps between the side-by-side floor heating panels B are closed with aluminum tape. Next, flooring floors 2 are stretched on the floor heating panel B, and the floor heating structure A is constructed.
[0055]
Please refer to FIG.
In the heat pipe 4 used for the floor heating panel B, grooves 43, 43 are juxtaposed on the bottom surface of the pipe main body 40, and a part of the heating wires 53, 53 (in this embodiment, cut off) is formed in the grooves 43, 43. The area (about） of the area) is buried (buried) in the length direction of the pipe body 40. Thereby, the contact area between the heating wire 53 and the pipe main body 40 is increased as 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 one half of the circumference of the heating wire 53, 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.
[0056]
Further, unlike the conventional heat pipe 4 shown in FIG. 16, the heat pipe 4 does not have a double-pipe structure, and is therefore easy to manufacture. Further, unlike the conventional one shown in FIG. 17, the bottom surface side of the heat pipe 4 has a structure in which the bottom is raised by the grooves 43, 43, so that the bulk is increased and the working fluid is reduced. Moreover, since it can be arranged in a horizontal state, it can be suitably used for a thin heat radiating device such as a floor heating panel.
[0057]
As shown in FIG. 1, in the present embodiment, the floor heating panel has been described as an example in which the panel is installed by being dropped between small joists 1 and 1 provided on the floor in advance. A type that can be used simply by laying it on a concrete surface or the like where it cannot be provided can also be mentioned.
[0058]
FIG. 13 is a schematic explanatory view showing an embodiment of the floor-installed floor heating panel. Unlike the floor heating panel B shown in FIG. 4, the floor heating panel B1 is provided with heat insulating materials 56d, 56d on both the left and right sides in FIG. Then, at the time of construction, the floor heating panels B1 are arranged side by side on the floor surface such that both side portions 560 in the width direction are in contact with each other.
[0059]
[Embodiment 2] <Foot warmer>
FIG. 14 is a perspective explanatory view showing one embodiment when the heat dissipation device according to the present invention is used as a foot warmer,
FIG. 15 is a schematic enlarged explanatory view showing a cross section corresponding to the IV-IV portion of FIG.
14 and 15, the same or equivalent parts as those of the first embodiment are denoted by the same reference numerals. In addition, the description of the portions described in the first embodiment will not be repeated, and differences will be mainly described.
[0060]
FIG. 14 shows a foot-mounted foot warmer C which is a heat radiating device. The foot warmer C has a rectangular shape in plan view. The size of the foot warmer C is about 450 mm in length, about 300 mm in width, and about 40 mm in thickness, but is not particularly limited thereto.
[0061]
A heat pipe 4 having the same structure as shown in FIGS. 8 to 11 is fixedly provided in a substantially central portion in the width direction on the back side of the upper surface of the heat radiating panel 51a in contact with the upper surface. The heat pipe 4 is surrounded by a heat insulating material 56e that is a foam. Reference numeral 512 indicates a convex portion provided on a portion on which the foot is placed, so that the foot does not directly contact the heat radiation panel 51a. In FIG. 14, reference numeral 513 indicates a power cord. Although not shown, a temperature sensor is provided on the bottom of the heat pipe 4.
[0062]
As described above, if the heat pipe 4 according to the present embodiment is employed for the foot warmer C, the foot can be effectively warmed while suppressing the electricity cost.
Other functions and effects are substantially the same as those of the first embodiment, and thus description thereof is omitted.
[0063]
It should be noted that the terms and expressions used in this specification are for explanation only, are not limiting, and do not exclude the terms and expressions equivalent to the above terms and expressions. Further, the present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope of the technical idea.
[0064]
Further, in the claims, the reference numerals used in the drawings are shown in parentheses in order to understand the contents of the claims, but the claims are not limited to those described in the drawings. Absent.
[0065]
【The invention's effect】
The present invention has the above configuration and has the following effects.
(A) According to the heat pipe according to the present invention, the heating wire is embedded in a state in which the peripheral surface portion is in contact with the outside of the portion where the working fluid is stored in the closed tube. Thereby, the contact area between the closing tube and the heating wire can be increased as compared with a case where the heating wire is simply brought into contact with the outer peripheral surface of the closing tube (so-called line contact state). Further, in the present invention, since the heat radiating surface of the pipe body is flat or substantially flat, if a metal heat radiating plate or the like is provided in contact with the heat radiating surface of the closing tube, the contact between the closing tube and the heat radiating plate is provided. The area can be increased. With such a configuration, the heat transfer efficiency of the heat pipe is good and the heat loss is small. Therefore, if the heat pipe according to the present invention is employed in a heat radiating device such as a floor heating panel or a foot heater, the running cost can be reduced.
[0066]
(B) Unlike the conventional heat pipe, the heat pipe according to the present invention does not have a double-pipe structure, and therefore is easy to manufacture. In addition, since the heating wire is buried outside the portion of the closed pipe where the working fluid is stored, the bottom side of the heat pipe has a structure that is raised. Therefore, the volume is increased and the working fluid is reduced. In addition, since it can be arranged in a horizontal state, it can be suitably used for a radiator such as a floor heating panel.
[0067]
(C) In the floor heating radiator provided with a housing for accommodating 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 panel body. It is possible to prevent the power cord from being detached or damaged while the worker is stepping on the power cord.
[0068]
[Brief description of the drawings]
FIG. 1 is a schematic perspective explanatory view showing one embodiment when a heat radiating device according to the present invention is used for a floor heating structure.
FIG. 2 is an explanatory plan view of a floor heating panel.
FIG. 3 is a left side view enlarged explanatory view of a floor heating panel.
FIG. 4 is a schematic enlarged explanatory view showing a cross section corresponding to an II section of FIG. 2;
FIG. 5 is a schematic enlarged explanatory view showing a cross section corresponding to a II-II portion in FIG. 2;
FIG. 6 is an enlarged explanatory view from the bottom of the panel for floor heating.
FIG. 7 is an enlarged perspective explanatory view showing a housing section of a floor heating panel.
FIG. 8 is a bottom view explanatory view of the heat pipe.
FIG. 9 is an explanatory side view of the heat pipe.
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 a III-III part in FIG. 8;
FIG. 12 is an explanatory diagram for explaining the operation of the heat pipe.
FIG. 13 is a schematic explanatory view showing an embodiment of a floor-mounted panel of a floor-laying type.
FIG. 14 is an explanatory perspective view showing an embodiment in which the heat dissipation device according to the present invention is used as a foot warmer.
FIG. 15 is a schematic enlarged explanatory view showing a cross section corresponding to a section taken along line IV-IV of FIG. 14;
FIG. 16 is an explanatory view showing a conventional heat pipe.
FIG. 17 is an explanatory view showing another conventional heat pipe.
[Explanation of symbols]
Reference Signs List A floor heating structure B floor heating panel C foot heater 1 small joist 2 flooring floor 3 controller 4 heat pipe 40 pipe 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 length Side part 512 Convex part 513 Power cord 52 Tape 53 Heating wire 531 Connecting parts 54a, 54b Temperature sensors 56, 56a, 56b, 56c, 56d, 56e Heat insulating material 560 Side part 57 Insulating sheet 6 Housing part 60a, 60b Groove part 61 Cover 71a Power cord 71b Ground wire 72a, 72b Connector 73 Resin tube 100 Ground floor 60, 60 Groove 611 Screw

Claims (5)

A closure tube (40) enclosing a working fluid (42) and having a flat or substantially flat heat dissipation surface (41);
A heating wire (53) embedded in a state where the peripheral surface thereof is in contact with a portion outside the portion where the working fluid (42) is stored in the closed pipe (40);
Characterized by having
heat pipe. A panel-shaped radiator used for floor heating,
A heat pipe (4) according to claim 1 is provided as a heat radiating means.
Heat dissipation device. A radiator (51) located on the side of the cover when the radiator is installed under the cover is provided, and a power cord (71) provided between the heat pipes (4, 4) is connected to the radiator (51). ) Is provided with a housing part (6) for housing so as not to be exposed from the surface of
The heat dissipation device according to claim 2. A heat dissipation device used to warm the feet,
A heat pipe (4) according to claim 1 is provided as a heat radiating means.
Heat dissipation device. A heat pipe (4) according to claim 1 is provided as a heat radiating means.
Heat dissipation device.

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