JP2001068716A - Generation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a generation device, which can fully absorb heat generated in solar battery cells, in spite of its simple constitution, fully be expected to give a sound insulation effect and obtain heated water with the heat generated in the solar battery cells. SOLUTION: A group of solar battery cells are mounted on the of the front surface side 10a of a foaming aluminum body 10 and a second foaming aluminum body 15 is mounted on the rear surface side 10b of the aluminum body 10 in a state that the body 10 is laminated on the body 15. A wiring wiring means 20 and a cooling means 25 are respectively provided on the surfaces 10b and 15b abutting on each other to both foaming aluminum bodies 10 and 15. The means 25 is constituted by providing a piping 26 for cooling in recessed grooves 14 and 16 formed on the surfaces 10b and 15b abutting on each other to both foaming aluminum bodies 10 and 15. A cooling on the sides of the aluminum bodies 10 and 15 is accelerated by a refrigerant in the piping 26, the power generation efficiency of a generation device can be enhanced and heat absorbed by the bodies 10 and 15 can be rapidly recovered by the refrigerant.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar-powered power generation device that is used as a building material integrated type by arranging and constructing it on a wall material or a roof material in a building or a house, for example.

[0002]

2. Description of the Related Art Heretofore, as this type of power generation device, there has been provided a structure of a solar cell panel as disclosed in Japanese Utility Model Laid-Open No. 59-111053. That is, in this conventional configuration, a light-receiving surface is covered with a translucent material, a plurality of solar cell elements are arranged between sheet-like thermoplastic resins, and set outside via a frame to form a solar cell panel. An aluminum honeycomb structure is provided on the back side of the solar cell panel, and the honeycomb structure is formed of an aluminum plate, an aluminum honeycomb core, and a punched aluminum plate.

According to this conventional configuration, it is said that the honeycomb structure increases the surface area of the heat radiating surface to greatly increase the amount of heat radiated, thereby improving the output reduction due to the temperature rise of the solar cell element.

[0004]

However, according to the above-mentioned conventional structure, a complicated ventilation structure (honeycomb structure) is required for radiating heat generated in the solar cell element. Further, the honeycomb structure did not have a sufficient sound insulation effect against external noise, rain impact noise, and the like. Furthermore, the heat generated by the solar cell element cannot be sufficiently absorbed only by the heat radiation by the ventilation method.

Accordingly, the invention according to claim 1 of the present invention can sufficiently absorb the heat generated in the solar cell and can sufficiently expect the sound insulation effect, while having a simple structure. It is an object of the present invention to provide a power generation device capable of obtaining heated water by the heat generated in the above.

[0006]

In order to achieve the above-mentioned object, a power generating apparatus according to claim 1 of the present invention has a solar cell group mounted on a surface side of an aluminum foam body and a solar cell group. A second aluminum foam body is mounted on the back side in a laminated manner, and wiring means connected to the solar battery cell side and cooling means are provided on the corresponding contact surfaces of both foamed aluminum bodies, and the cooling means comprises: A refrigerant pipe is provided in a concave groove formed on the corresponding contact surface side of both foamed aluminum bodies, and is constituted.

Therefore, according to the first aspect of the present invention, heat generated in the solar cell group during power generation is transmitted to the laminate of the foamed aluminum body and the second foamed aluminum body. Since both foamed aluminum bodies have a gas-permeable porous structure in which a large number of air bubbles are present, the heat generated in the solar cells can be quickly and sufficiently absorbed without providing a complicated ventilation structure, and the ventilation on the back side is performed. The change (strong or weak) of the outside air temperature due to Further, the both foamed aluminum bodies provide sound insulation against external noise and the impact sound of rain, as well as a sufficient electromagnetic wave shielding effect, and the rigidity of the whole foamed aluminum body itself can be enhanced.

[0008] Further, by laminating the foamed aluminum body and the second foamed aluminum body, the heat absorption effect described above,
It is possible to further improve the effect of reducing the influence of the ventilation change on the power generation efficiency, the sound insulation effect, the electromagnetic wave shielding effect, and the rigidity effect against distortion. Furthermore, by flowing a coolant through the pipe of the cooling means, the cooling of the foamed aluminum body side can be promoted to improve the power generation efficiency, and the heat of the solar battery cell side absorbed by the foamed aluminum body can be quickly recovered by the cooling water. I can do it. Then, the heating refrigerant (heating water or the like) generated by heat absorption can be used for hot water supply or floor heating directly or through a hot water tank.

In addition, since the wiring means and the cooling means are provided on the corresponding contact surfaces of the foamed aluminum bodies, the thickness of the power generation device itself can be reduced, and the power generation device can be reduced in size and weight.
In addition, since the pipe also serves as a reinforcing material, the rigidity of the integrated panel can be increased, and the thickness of the second aluminum foam body as the backing material can be further reduced.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
A description will be given based on the drawings, assuming that the building is installed and arranged on the side wall of the building. 1 to 3, a rectangular sheet-shaped solar cell 1 is arranged and mounted on one surface of a protective sheet 2 in a matrix form. At that time, a predetermined portion of the protection sheet 2 includes a portion where the solar cell 1 is not attached (details will be described later).
This corresponds to two (single or plural) solar cells 1. The protection sheet 2 is made of, for example, polyvinyl fluoride.

The solar cell group 1 is attached by, for example, pasting using a transparent adhesive (ethylene-vinyl acetate polymer) 3. At this time, the solar cell group 1 and the protective sheet 2 are bonded. A thin plate-shaped first lead wire 4 connected in series to the group of solar cells 1 is interposed at an appropriate place therebetween. Then, on the surface side of the solar cell group 1, one piece of transparent tempered glass 5 is laminated, and the tempered glass 5 is fixed using the transparent adhesive 3, and at this time, the solar cell group 1 A part of the first lead wire 4 is interposed at an appropriate place between the tempered glass 5. The thin rectangular plate-like power generation panel body 6 is formed by the above 1 to 5 and the like.

The power generation panel body 6 is mounted on the surface 10a of the aluminum foam body 10. The foamed aluminum body 10 is formed into a gas-permeable porous body having a large number of air bubbles by performing an intended foam molding. The foamed aluminum body 10 is subjected to press molding (embossing) or pressure molding using a roller, that is, compression molding. Thereby, the density of the foamed aluminum body 10 is increased, and the front surface 10a side and the back surface (equivalent contact surface) 10b side are made smooth.

A recess 11 is formed on the surface 10a of the aluminum foam body 10 by press molding or the like, and a penetrating portion 12 is formed at one location in the recess 11. Further, on the back surface 10b side, a detour-shaped groove 13 having a semicircular cross section with one end thereof continuing to the recess 11;
A meandering groove 14 having a semicircular cross section whose both ends are open to the upper and lower end surfaces is formed.

The detour groove 13 and the meandering groove 14 are formed at the same time as the above-described compression molding. At this time, the detour groove 13 does not cross the meandering groove 14. Is formed. Note that, in the upper and lower open portions of the meandering groove 14, coupler recesses 14A and 14B are formed simultaneously. The recess 11 is formed to a size and depth into which the power generation panel body 6 is fitted, and by this fitting, the group of solar cells 1 is placed on the surface 10 a side of the foamed aluminum body 10 via the protective sheet 2. It will be attached to. At this time, the relative relationship is set such that the recess 11 is opposed to a place where the solar cell 1 is not attached. The foamed aluminum body 10
Since the density is high, the sound absorption coefficient can be increased, and further, since the surface 10a side is smooth, the contact area with the group of solar cells 1 can be widened and the heat conduction can be improved.

A wiring means 20 is provided which is connected to the solar cell 1 using the penetrating portion 12 and the detoured groove 13. That is, the first part is formed in the penetration part 12.
A terminal box 21 to which the lead wire 4 is connected is provided,
Then, the second lead wire 22 from the terminal box 21
Are wired in the bypass groove 13. These two
1 and 22 constitute an example of the wiring means 20.

The back surface 10b of the foamed aluminum body 10
On the side, a second aluminum foam body 15 is attached in a laminated manner. A meandering groove 16 having a semicircular cross section whose both ends are open to the upper and lower end faces is formed on the back (equivalent contact surface) 15b side of the second aluminum foam body 15 so as to freely match the meandering groove 14. It is formed as. Here, the meandering groove 16 is formed by press molding or the like.
The upper and lower open portions of the meandering groove 16 are provided with coupler recesses 16 that can be freely fitted with the coupler recesses 14A and 14B.
A and 16B are formed simultaneously.

The double meandering groove 1 matched as described above
A cooling means 25 is provided by utilizing the cooling water 4 and the cooling water 16. That is, the cooling means 25 is provided with a pipe 26 for a refrigerant (such as cooling water).
One example is constituted by the female coupler 27, the male coupler 28, and the like provided separately at both ends of the pipe 26. The pipe 26 is formed in a meandering shape, and is configured to be fitted over the matched two meandering grooves 14 and 16. The female coupler 27 is fitted over the matched concave portions 14A and 16A for both couplers,
The male coupler 28 has the matched recesses 14B, 16 for both couplers.
It is configured to be fitted over B. The pipe 26 is made of metal such as aluminum, copper alloy, stainless steel, or resin.

The aluminum foam bodies 10, 15 are integrated with the wiring means 20 and the cooling means 25 incorporated therein. That is, the back surface 10b of the foamed aluminum body 10 and the back surface 15b of the second foamed aluminum body 15 are heated with the low melting point metal 18 interposed therebetween, and are integrated using the low melting point metal 18 as an adhesive. ing. By integrating the foamed aluminum bodies 10 and 15 in this manner, the foamed aluminum bodies 10 and 15 are integrated.
The wiring means 20 and the cooling means 25 are provided on the corresponding contact surface side, that is, within the thickness W.

As described above, the power generation panel body 6, the foamed aluminum body 10, and the second foamed aluminum body 15 in the laminated state have the four side edges fitted in the frame-shaped outer frame body 30, so that the laminated state is achieved. The entire shape is maintained, including that. The outer frame 30 includes left and right side frame portions 31, an upper frame portion 32, and a lower frame portion 33. Here, the left and right side frame portions 31 are made of a C-shaped frame material with a transverse cross section, and are arranged with their open portions facing inward. The upper frame part 32 is roughly formed in a vertical cross section.
It is made of a mold-shaped frame material, and is arranged with its open part facing downward. An upper engaging strip portion 32b is integrally formed at the center of the top plate portion 32a of the upper frame portion 32, and an upper mounting plate portion 32c is provided at one corner portion by connection. I have.

The lower frame portion 33 is roughly formed in a vertical cross section.
It is made of a mold-shaped frame material, and is arranged with its open part facing upward. At the center of the bottom plate portion 33a of the lower frame portion 33, an upward engaging groove portion 33b is integrally formed, and the engaging groove portion 33b and the engaging groove portion 32b can be engaged with each other vertically. It is configured. The outer frame 30
In the upper frame portion 32 and the lower frame portion 33, there are formed a hole (or notch) 35 for passing the second lead wire 22 and a hole (or notch) for allowing the female coupler 27 or the male coupler 28 to face. ) 36 are formed. An example of the power generation device 38 is configured by the above configuration.

Hereinafter, an example of use of the power generator 38 in the above-described embodiment will be described. As shown in FIG. 3 to FIG. 6, a rectangular cylindrical body edge 50 is disposed in a vertical direction on the outer surface side of a predetermined location on the side wall 40 of the building.
Then, the connecting means 5 of the power generating device 38 is
1, the connecting means 51 is provided with an inner adjuster 5
One example is composed of the second adjuster 53 and the outer adjuster 53.

That is, the inner adjuster 52 is shaped like a mold, and is provided continuously with an inner surface receiving plate portion 52a fixed to the outer surface of the body edge 50 from an intermediate portion of the inner surface receiving plate portion 52a. A pair of end surface receiving plate portions 52b and a reinforcing plate portion 52 provided between intermediate positions of the end surface receiving plate portions 52b
c and a locking portion 52d provided inward at the free end of the end face receiving plate portion 52b.

The outer adjuster 53 is configured to be able to engage with the inner adjuster 52 from outside. That is, the outer adjuster 53 is shaped like a mold,
An outer surface receiving plate portion 53a, and a pair of insertion plate portions 53b connected rearward from an intermediate portion of the outer surface receiving plate portion 53a;
Reinforcement plate portion 5 provided continuously between intermediate positions of insertion plate portion 53b
3c, a locked portion 53d provided outward at the free end of the insertion plate portion 53b, and the like.

A sash drainer 41 is provided on the side wall 40, and an upper frame cover 42 is provided below the sash drainer 41.
The upper frame cover 42 is fixed to the body edge 50 via a fixing hardware 43. An upper metal member 44 is fixed between the lower portion of the upper frame cover 42 and the body edge 50. The upper metal member 44 is engaged with the engaging strip portion 32b of the upper frame portion 32 from below. Groove portion 44b
Are integrally formed. A lower hardware 45 fixed to a lower portion of the body edge 50 is provided.
An engaging groove portion 45b is formed integrally with the engaging groove portion 33b of the lower frame portion 33 so as to be engageable from below.

Here, when the upper metal part 44 is fixed to the body edge 50, the mounting plate part 32c of the upper frame part 32 is fixed.
Are connected at the same time. Note that a piping / wiring space 46 is formed by the upper frame cover 42 and the upper hardware 44. When constructing the group of power generating devices 38, first, as shown in FIG. 6A, a rim 50 is arranged at a predetermined position on the side wall 40. And on the outer surface of the trunk 50,
The inner adjuster 52 of the connecting means 51 is
It is fixed via 2a. Further, the lower hardware 45 is fixed to the lower portion between the outer surfaces of the body edge 50.

Next, a panel-shaped power generator 38 is provided. That is, as shown in FIG.
The bottom plate portion 33a of the lower frame portion 33 is placed on the lower metal member 45, and at this time, the engagement groove portion 3
3b is engaged in the vertical direction. Further, the power generator 38
The side frame 31 is the inner receiving plate 5 of the inner adjuster 52.
2a and the end face receiving plate portion 52b. In this state, the mounting plate portion 32c of the upper frame portion 32 is connected to the body edge 50.

The power generator 38 is fixed to the side wall 40 in this way, and the next power generator 38 is arranged on the power generator 38 in a stacked manner. At this time, as shown in FIG. 3, the engaging groove portion 33b of the lower frame portion 33 of the upper power generation device 38 is vertically aligned with respect to the engaging strip portion 32b of the upper frame portion 32 of the lower power generation device 38. Engaged. During such stacking work, between the upper and lower cooling means 25, the male coupler 28 in the upper cooling means 25 is automatically connected to the female coupler 27 in the lower cooling means 25. Also, wiring and connection of the second lead wire 22 are appropriately performed.

After the predetermined number of steps of stacking work have been performed in this manner, the upper hardware 44 is fixed to the upper portion between the outer surfaces of the rim 50. That is, as shown in FIG. 6 (c), the upper metal part 44 is placed on the top plate part 32a of the upper frame part 32 in the uppermost power generation device 38, and at that time, the engaging strip part 32
The engagement groove portion 44b is engaged in the vertical direction in FIG. Before and after such fixing of the upper hardware 44, the outer adjuster 53 is disposed between the rows of the left and right power generators 38. That is, the outer adjuster 53 is provided between the rows of the left and right power generators 38.
As shown in FIG. 4, the locked portion 53 d provided outward is elastically engaged with the locking portion 52 d provided inward of the inner adjuster 52.

As described above, after the upper hardware 44 is fixed and the outer adjuster 53 is provided, the upper frame cover 42 is interposed via the fixed hardware 43 and the upper hardware 44 as shown in FIG. And is fixed to the trunk edge 50 side. At the time of power generation use, the solar battery cell group is attached to one surface of the protective sheet 2 and the solar battery cell group is attached to the surface 10a side of the foamed aluminum body 10 via the protective sheet 2 so that the solar battery cell The heat generated in 1 is transmitted to the aluminum foam body 10 via the protective sheet 2.

Here, since the aluminum foam body 10 has a gas-permeable porous structure in which a large number of air bubbles are present, the heat generated in the solar cell 1 is transmitted by the aluminum foam body 10 without providing a complicated ventilation structure. In addition to being able to absorb quickly and sufficiently, the influence of the change in ventilation on the power generation efficiency can be mitigated without much change (strong or weak) in the outside air temperature due to the back ventilation.

Further, by mounting the solar cell group 1 on the foamed aluminum body 10 side, it is possible to provide sound insulation against external noise, rain impact noise, and the like, and it is possible to sufficiently expect an electromagnetic wave shielding effect for a computer and the like. The rigidity against distortion can be sufficiently expected by the strength of the aluminum foam body 10 itself. In addition, since the second aluminum foam body 15 is mounted on the back surface 10b side of the aluminum foam body 10 in the form of a laminate, the above-described heat absorption effect, the effect of reducing the influence on the power generation efficiency due to the change in ventilation, the sound insulation effect, the electromagnetic wave shielding, and the like. The effect and the rigidity effect on distortion can be further improved.

Furthermore, both foamed aluminum bodies 10 and 15
The cooling means 25 is provided on the side of the corresponding contact surfaces 10b and 15b, and cooling water (refrigerant) is provided in a pipe 26 to which the cooling means 25 group is connected.
, The cooling of the foamed aluminum bodies 10 and 15 can be promoted to improve the power generation efficiency, and the heat of the solar cell 1 side absorbed by the foamed aluminum bodies 10 and 15 can be quickly recovered by the cooling water. obtain. Then, the heated water (warm water) generated by the heat absorption can be used for hot water supply, floor heating, or the like directly or through a hot water tank.

Then, both foamed aluminum bodies 10, 1
By providing the wiring means 20 and the cooling means 25 on the equivalent contact surfaces 10b and 15b sides of the aluminum foil 5, that is, within the thickness W of the foamed aluminum bodies 10 and 15, the thickness of the power generation device 25 itself can be reduced. As a result, the size and weight can be reduced. Moreover, the pipe 26 also serves as a reinforcing material,
The rigidity of the integrated panel can be increased, and the thickness of the second aluminum foam body 15 as the backing material can be reduced.

As in the above embodiment, the cooling means 2
As 5, the pipe 26, the female coupler 27 and the male coupler 28
By adopting such a method, connection can be made quickly and conveniently, and assembling work and maintenance work at a high place can be easily performed. As in the above embodiment, the back surface 10b of the foamed aluminum body 10 and the back surface 15b of the second foamed aluminum body 15 are
By integrating 8 as an adhesive, the low-melting-point metal 18 is melted by heating with a burner or the like, whereby the aluminum foam body 10 and the second aluminum foam body 15 can be easily separated. Therefore, replacement of the pipe 26 and cleaning of the pipe 26 when the pipe 26 is clogged with, for example, scale can be easily and promptly dealt with.

In the above-described embodiment, the terminal box 2 is provided in the through portion 12 formed in the aluminum foam body 10.
1 is provided, this is a foamed aluminum body 1
0, a recess may be formed, and the terminal box 21 may be provided in the recess. In the above-described embodiment, the wiring means 20 is provided on the foamed aluminum body 10 side.
A recess or groove may be formed in the second aluminum foam body 15 and the wiring means 20 may be provided on the second foamed aluminum body 15 side. In addition, the recesses and grooves are made of both foamed aluminum bodies 10, 1
5 may be formed between the opposing surfaces.

In the above embodiment, the solar cell 1
The tempered glass 5 is laminated on the surface side of the group. Instead of the tempered glass 5, a form in which a transparent resin plate is laminated,
It may be a type in which a resin layer is coated. In the above-described embodiment, the power generators 38 are arranged and constructed in a stacked manner. However, this is done by arranging the power generators 38 side by side with respect to the connecting means 51 provided vertically in parallel. May be.

As shown in the above embodiment, the power generator 38 is disposed at a predetermined location on the side wall 40 of the building.
By performing the construction, when the solar power generation device 38 is used as a building material integrated type, the above-described sound insulation effect and the like can be more preferably expected. However, the generator 38
Is used for various types of fixed objects, such as a type that is arranged and constructed on a roof material of a house and used as a building material integrated type, and a type that is arranged and constructed and used on the roof of a building. Furthermore, the present invention can also be realized as a solar power generation device 38 that is disposed and constructed on a movable object such as a vehicle or a ship and used.

In the above embodiment, the power generator 38
Are arranged using the connecting means 51 or the like. However, various arrangements are adopted, such as fixing directly to the arranged portion such as the side wall 40 by screwing. it can.

[0039]

According to the first aspect of the present invention, the heat generated in the solar cell group during power generation can be transmitted to the aluminum foam body. And, since the foamed aluminum body has a gas-permeable porous structure in which a large number of air bubbles are present, heat generated in the solar cell can be quickly and sufficiently absorbed without providing a complicated ventilation structure,
The influence of the change in ventilation on the power generation efficiency can be mitigated by being hardly affected by the change in the outside air temperature (strong or weak) due to the back ventilation.
Further, the foamed aluminum body enables sound insulation against external noise and rain impact noise, and can sufficiently expect an electromagnetic wave shielding effect, and the strength of the foamed aluminum body itself can sufficiently expect rigidity against distortion. In addition, the lamination of the foamed aluminum body and the second foamed aluminum body allows the heat absorption effect described above,
The effect of reducing the influence of the change in ventilation on the power generation efficiency, the sound insulation effect, the electromagnetic wave shielding effect, and the rigidity effect against distortion can be further improved.

In particular, by flowing a refrigerant through a pipe of a cooling means provided on a corresponding contact surface side of both foamed aluminum bodies,
The power generation efficiency can be further improved by promoting the cooling of the foamed aluminum body side, and the heat on the solar battery cell side absorbed by the foamed aluminum body can be quickly recovered by the cooling water. Therefore, refrigerant (heated water) generated by heat absorption
Can be used for hot water supply and floor heating directly or through a hot water tank. By providing the wiring means and the cooling means on the corresponding contact surfaces of both foamed aluminum bodies, the thickness of the power generation device itself can be reduced, and the power generation device itself can be reduced in size and weight, and the piping is reinforced. Will also serve as a material,
The rigidity of the integrated panel can be increased, and the thickness of the second aluminum foam body as the backing material can be reduced.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention and is a partially cutaway perspective view before a power generator is assembled.

FIG. 2 is a partially cutaway front view of the power generation device.

FIG. 3 is a vertical sectional side view of the power generation device.

FIG. 4 is a cross-sectional plan view of a main part of the power generation device.

FIG. 5 is a schematic front view of the power generation device in a use mode.

FIG. 6 is a schematic side view showing an assembled state of a usage mode of the power generation device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solar cell 6 Power generation panel body 10 Aluminum foam body 10a Surface 10b Back surface (equivalent contact surface) 11 Concave part 12 Penetration part 13 Detour-shaped concave groove 14 Meandering concave groove 14A Coupler concave part 14B Coupler concave part 15 Second foam Aluminum body 15b Back surface (equivalent contact surface) 16 Serpentine concave groove 16A Coupler concave portion 16B Coupler concave portion 18 Low melting point metal 20 Wiring means 21 Terminal box 22 Second lead wire 25 Cooling means 26 Pipe 27 Female coupler 28 Male coupler 30 Outer Frame 32b Engagement strip 33b Engage groove 38 Power generator 40 Side wall of building 43 Fixture 44 Upper hardware 44b Engagement groove 45 Lower hardware 45b Engagement strip 50 Body edge 51 Connecting means 52 Inner adjuster 53 Outer adjuster W thickness

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Koji Kitazawa, Inventor 3-2-2, Kitahama, Chuo-ku, Osaka City, Osaka Prefecture Inside Kitazawa Sangyo Co., Ltd. (72) Katsuhiko Nokubo 3-2-2, Kitahama, Chuo-ku, Osaka City, Osaka No. 24 Inside Kitazawa Sangyo Co., Ltd. (72) Tomoko Nakano, Inventor Tomoko Nakano, 1-3-1, Tenma, Kita-ku, Osaka-shi, Osaka, Japan Inside Artcom Co., Ltd. (72) Inventor Yoshinobu Tomoda, Osaka-shi, Osaka No. 1-3, Tenma, Kita-ku Yuniheim Temma Building No. 72 F-term in Artcom Co., Ltd. (reference) 5F051 BA03 BA18 JA02 JA09 JA18

Claims (1)

[Claims] 1. A solar cell group is mounted on the front side of a foamed aluminum body, and a second aluminum foam body is mounted on the back side of the foamed aluminum body in a laminated manner. A wiring means connected to the solar cell side and a cooling means are provided,
A power generator, wherein the cooling means is configured by arranging a refrigerant pipe in a concave groove formed on a corresponding contact surface side of both foamed aluminum bodies.