JPH06129783A - Heat dissipating wall member - Google Patents

Abstract

PURPOSE:To provide a wall member having heat dissipating function by so providing a wick for pumping liquid state actuator by a capillary pressure on an inner wall of a hollow part inside a room in a panel using state that its part is dipped in hydraulic fluid. CONSTITUTION:A hollow part 2 is sealed in a sealed state, and condensible fluid such as water, fluorocarbon, etc., is sealed as hydraulic actuator 3. A wick 5 for generating capillary pressure such as a mesh, etc., is provided in an inner wall 4 of a room, and dipped in liquid state hydraulic fluid 3. When the temperature in the room is higher than the atmospheric temperature, the fluid 3 pumped by the wick 5 is evaporated by heat in the room, the vapor is brought into contact with an inner wall 8 outside a room and condensed. When the atmospheric temperature is higher than the temperature in the room, the fluid is not pumped to the wall 8, and hence it is not evaporated. Thus, a wall member which has also a unidirectional heat transferring function from in the room out of the room can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall member for partitioning a room from a room.

[0002]

2. Description of the Related Art The temperature of a room in which large-capacity electronic equipment such as a large computer and a digital telephone exchange is installed is because these electronic equipment are easily affected by heat and generate a large amount of heat. It is necessary to control the temperature mainly for cooling. Therefore, in general, air conditioning equipment for building structures is generally used to control the temperature inside the electronic equipment room. When it becomes necessary to increase the size, and when the electronic devices are distributed and arranged, it is necessary to provide air conditioning equipment individually at the installation location of each electronic device, and in any case the equipment cost required for temperature control of the electronic device. And, there is a problem that the running cost becomes high.

By the way, the room temperature in which electronic equipment such as a digital telephone exchange is installed may be maintained below the outside air temperature even in the summer, so that a heat pump using a drive device such as a compression refrigerator is conventionally used. Instead, a device has been proposed in which heat is carried out indoors by a heat pipe to control the temperature.

FIG. 3 shows an outline of such an air conditioner.
This air conditioner includes an indoor heat absorbing portion 101 and an outdoor heat radiating portion 1
02 is connected with pipes 103 and 104 to form a loop-shaped heat pipe 100, and the fan 110 is configured to positively send the air in the room to the heat absorbing portion 101. The fan 110 blows the air to the heat absorbing portion 101. The heat that the air has has is the heat absorbing portion 101 of the heat pipe 100.
Is absorbed by the heat absorbing portion 101, the working fluid in the heat absorbing portion 101 evaporates, the vapor moves to the heat radiating portion 102, and then the heat radiating portion 102 radiates heat to condense and liquefy. In this way, heat is carried from the room to the outside as the latent heat of vaporization of the working fluid to cool the room. The liquefied working fluid is automatically returned to the heat absorbing portion 101 by gravity by providing the heat absorbing portion 101 at a position lower than that of the heat radiating portion 102. The pipe 100 continuously transfers heat.

[0005]

In the above-mentioned conventional apparatus, the heat pipe 100 automatically operates to transport heat due to a temperature difference between the inside and the outside of the apparatus.
No running cost or very cheap,
In addition to the wall structure and heat pipe being completely separate,
Since the heat pipe is of a loop type, it is necessary to connect the heat pipe container at the installation site, to degas the heat pipe, and to enclose the working fluid, which makes the construction difficult and costly.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a wall member that also has a function of radiating heat from the inside to the outside of the room.

[0007]

In order to achieve the above-mentioned object, the present invention forms a hermetically sealed hollow portion inside a wall panel having a predetermined thickness for partitioning an interior and an exterior, and A wick in which only the condensable working fluid is enclosed in the hollow portion, and the liquid phase working fluid is pumped up by the capillary pressure to the inner wall surface of the inner wall of the hollow portion which is the indoor side when the panel is in use. Is provided in a state where a part thereof is immersed in the working fluid.

[0008]

The wall member of the present invention is installed so that the wick is located on the indoor side, and partitions the indoor and outdoor areas. Since the hollow portion where the wick is provided is configured as a heat pipe by substantially enclosing only the condensable working fluid, if the room temperature is higher than the outside air temperature, the working fluid pumped up by the wick is Of the inner wall of the hollow portion is contacted with the inner wall surface located on the outer side of the inner wall surface of the inner wall surface of the inner wall of the hollow portion, and the heat is taken away.
The liquefied working fluid is pumped up again by the wick to the surface of the room where evaporation occurs due to heat. On the other hand, when the outside air temperature is higher than that in the room, the working fluid cannot be pumped up to the inner wall surface on the outdoor side of the inner wall surfaces of the hollow portion, so that the working fluid does not evaporate. That is, the heat pipe formed inside the panel operates so as to transport heat only from the indoor side to the outdoor side. The panel also functions as a wall material and bears the required load.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. 1 and 2 are sectional views showing an embodiment of the present invention, in which a plurality of hollow portions 2 are formed inside a panel 1 having a predetermined thickness. The panel 1 constitutes a wall surface of a building structure, and the hollow portion 2 thereof is attached to the body portion of the panel 1 as shown in FIG.
It is formed to be horizontally long along the horizontal direction. The hollow portion 2 is hermetically sealed, and a non-condensable fluid such as air is degassed and a condensable fluid such as water or chlorofluorocarbon is enclosed as a working fluid 3. That is, this hollow portion 2 is a heat pipe. Furthermore, this hollow part 2
The inner wall surface 4 of the inner wall surface of the inner wall 4 is provided with a wick 5 such as a mesh for generating a capillary pressure, and the lower end portion thereof extends along the bottom surface of the hollow portion 2 and has an L-shaped cross section. And is immersed in the liquid-phase working fluid 3. Further, fin members 6 and 7 are attached to the surface of the panel 1 in order to increase the surface area. The above-described panel 1 having the hollow portion 2 can be obtained by extrusion molding using, for example, aluminum as a raw material, and the hollow portion 2 is sealed with an appropriate plate material and then vacuum degassing, flushing and injection of a working fluid, and an injection nozzle. A heat pipe structure can be obtained through steps such as sealing.

As shown in FIG. 1, the panel 1 is assembled to the body portion A to form a wall surface. In that case, the wick 5 is used.
Is located indoors. When the indoor temperature becomes higher than the outdoor temperature in this state, the working fluid 3 is evaporated inside the hollow portion 2 of the heat pipe structure due to the temperature difference between the indoor side inner wall surface 4 and the outdoor side inner wall surface 8. That is, on the inner wall surface 4 on the indoor side in the hollow portion 2, the wick 5 provided along this
Since the working fluid 3 is pumped up by and is supplied to almost the entire surface of the working fluid 3, the working fluid 3 is heated by the heat in the room and evaporates. On the other hand, since the outdoor inner wall surface 8 is cooled by the outside air and has a low temperature,
The working fluid vapor that has come into contact therewith loses its latent heat and condenses. In this way, the heat in the room is carried to the outside of the room by the working fluid 3 and released to the outside. In addition, the liquefied working fluid 3 is again wicked by the wick 5 to the inner wall surface 4 on the indoor side.
Are dispersed and supplied.

On the other hand, when the temperature outside the room is higher than the temperature inside the room, the working fluid 3 in the liquid phase is formed on the outside wall surface 8 of the hollow portion 2.
Is almost absent, the evaporation of the working fluid 3, that is, the heat transfer from the outside to the inside of the room hardly occurs, and the inside of the room is not heated by the outside air. That is, the heat pipe configured as the hollow portion 2 inside the panel 1 has a thermal diode characteristic.

Since the above-described panel 1 is constructed in the shape of a rigid flat plate, it is suitable as a wall member for buildings in terms of shape and strength. Therefore, for example, if it is used as a part of the outer wall of a building of a digital telephone exchange that generates a large amount of heat indoors, the heat dissipation function of the panel 1 automatically operates when the temperature inside the room becomes higher than the outside air. The heat in the room is released to the outside. As an example, if the indoor allowable temperature is 30 ° C, the outside air temperature will not be higher than the allowable indoor temperature in the three seasons of spring, autumn, and winter when the outside air temperature is relatively low. However, the indoor temperature can be suppressed within the allowable range. In addition, even if the outside air temperature rises above 30 ° C in summer, the heat pipe characteristic of the heat pipe does not allow heat to be transferred from the outdoors to the inside, and the panel 1 is installed so that it is suitable for shaded and well-ventilated areas. Then, even in the summer, the panel 1
As a result, sufficient heat dissipation from the room to the outdoors can be performed, and as a result, the load on the equipment for air conditioning or cooling can be reduced.

In the above embodiment, the structure in which the hollow portions 2 are vertically arranged in four rows has been described as an example, but the height of the hollow portions 2 is limited by the capillary pressure generated in the wick 5. Therefore, the number of hollow portions may be reduced when the height of the panel is low or when a high capillary pressure can be obtained. In addition, a plurality of panels may be used in a vertical arrangement.

[0014]

As is apparent from the above description, according to the present invention, a hollow portion having a hermetic structure is formed inside a wall panel having a predetermined thickness that divides an interior from an exterior.
A wick in which only the condensable working fluid is enclosed in the hollow portion, and the liquid phase working fluid is pumped up by the capillary pressure to the inner wall surface of the inner wall of the hollow portion which is the indoor side when the panel is in use. Since a part of it is provided in a state of being immersed in the working fluid, it can be a wall member that also has a one-way heat transport function from indoor to outdoor, so that electronic devices can be installed. The cost for a certain indoor cooling facility and the running cost can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is a schematic diagram showing an example of a conventional heat pipe radiator.

[Explanation of symbols]

 1 panel 2 hollow part 3 working fluid 4 indoor side inner wall surface 5 wick 8 outdoor side inner wall surface

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Koji Nishizaki 4-9-25 Shibaura, Minato-ku, Tokyo Shibaura Squire Building Tokyo Communication Network Co., Ltd. (72) Inventor Hiroshi Iseki 4--9, Shibaura, Minato-ku, Tokyo No. 25 Shibaura Squair Tokyo Communication Network Co., Ltd. (72) Inventor Isao Kaji 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Ltd. (72) Inventor Shinichi Sugihara 1-5, Kiba, Koto-ku, Tokyo No. 1 in Fujikura Ltd. (72) Inventor Koichi Masuko 1-5-1, Kiba, Koto-ku, Tokyo Inside Fujikura Ltd.

Claims (1)

[Claims] 1. A hollow part having a hermetic structure is formed inside a wall panel having a predetermined thickness that divides the room from the outside, and substantially only the condensable working fluid is enclosed in the hollow part. A wick for pumping the liquid-phase working fluid by capillary pressure is provided on the inner wall surface of the inner wall of the hollow portion, which is the indoor side when the panel is in use, with a part thereof immersed in the working fluid. A heat dissipation wall member characterized by being provided.