JP2002039631A - Photothermal hybrid panel, hybrid panel main body using it, and method of manufacturing it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photothermal hybrid panel which is high in thermal efficiency and excellent in mass-productivity and a method of manufacturing the panel. SOLUTION: The photothermal panel is obtained by heating and pressurizing a laminate on which a rear-surface member 300 (an integrally laminated body of three layers of an adhesive resin 303, a rear-surface insulator 302, and a rear-surface sealing resin 301), a photovoltaic element 200, and a surface member 100 (an integrally laminated body of two layers of a surface sealing material 102 and a surface light-transmissive film 101) are piled up on a solar heat collector 400 formed by welding a planar metallic sheet 401, a corrugated metallic sheet 402, and upper and lower header pipes to each other by using the collector 400 as a structural supporting body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photothermal hybrid panel for extracting electric and thermal energy from sunlight, a hybrid panel body using the same, and a method for manufacturing a photothermal hybrid panel.

[0002]

2. Description of the Related Art A photothermal hybrid panel aims to efficiently extract both electric and thermal energy from sunlight. In order to improve the heat collection efficiency, in particular, a photovoltaic hybrid panel needs to be connected to the back of the solar cell panel. It is effective in terms of heat transfer that there is no air layer between the solar heat collector and the two members are in surface contact. Such a photothermal hybrid panel has a structure in which a solar cell panel is bonded to a solar heat collector with an adhesive such as a hot-melt resin or a room-temperature-curable silicone adhesive as disclosed in Japanese Utility Model Laid-Open No. 4-125163. FIG. 4 and FIG. 5 are general schematic sectional views of this type of photothermal hybrid panel. This light-heat hybrid panel has a transparent surface member 1
a, the solar cell panel 1 obtained by laminating the surface sealing resin 1b, the photovoltaic element 1c, the back surface sealing resin 1d, and the back surface member 1e in this order and applying heat and pressure is bonded to the solar heat collector 3 with an adhesive 2 Obtained by bonding.

The solar heat collector 3 comprises an upper and lower header pipe 3c, a water pipe 3a communicating therewith, and a heat collecting fin 3b attached to the water pipe. In a manufacturing process of thermally bonding the solar heat collector to a solar cell panel, when a conventional double vacuum chamber laminating apparatus equipped with a heat-resistant rubber diaphragm is used, a laminate in which an adhesive resin is interposed between the solar heat collector and the solar cell panel. The body is placed on the laminator heating plate with the solar cell panel side, and the heat collecting plate is pressurized with the diaphragm, and the solar cell collector is placed on the heating plate and the solar cell panel is pressed with the diaphragm.
There are two cases.

[0004] However, the first case has a problem that the rubber diaphragm is damaged by protrusions (water pipes or header pipes) of the solar heat collector, and pressure cannot be evenly applied. The second case has a problem that the contact area between the projection of the solar heat collector and the heating plate is reduced, and the efficiency of heat transfer from the heating plate is reduced.

In order to solve the above-mentioned problem, Japanese Patent Laid-Open No. 11-1
No. 93963, “Method and manufacturing jig of photothermal hybrid panel”, provides a method of placing a female laminating jig in a state in which the protrusions of the solar heat collector are stored, and laminating and integrating the solar cell panel and the heat collector. ing. Briefly describing the present invention, a light-transmitting substrate (for example, white plate reinforced glass) is placed on a heating plate side of a laminating apparatus, and a solar cell element sandwiched between front and back sealing resins is placed thereon. This is a manufacturing method in which the projections of the collector are placed facing the diaphragm side, and a female laminating jig is stacked while the projections are housed, and the whole is heated and pressed to be integrated.

However, in this manufacturing method, the glass is loaded on the bottom so that the solar heat collector is on the top.
There is a drawback that the positional relationship between the photovoltaic element and the solar heat collector cannot be measured accurately. In the worst case, the solar cell panel is largely displaced, which causes a problem in appearance.

In particular, the laminating step is a rate-determining step in module production, and the work of mounting a female laminating jig before laminating is complicated and causes a deterioration in operation rate.

The photothermal hybrid panel is generally large (for example, 1 m × 1 m, or 1 m × 2 m).
A solar heat collector of approximately the same size is heavy, and it is very difficult to stack this on a laminate, and it is conceivable that manual operation will require two people.

When a heavy solar collector is to be placed on the laminate, the cell may be damaged due to the weight of the solar thermal collector, for example, when the photovoltaic element is made of polycrystalline silicon.

When a tempered glass having substantially the same size as that of the solar heat collector is used as the surface material, the overall weight of the photothermal hybrid panel increases, so that not only the transport efficiency in the manufacturing process is deteriorated, but also the photothermal hybrid is used in a casing or the like. When mounting and fixing to an aluminum frame, the efficiency of the mounting work is degraded and the fixing must be able to withstand heavy weight.

On the other hand, as a conventional technique for improving the heat collection efficiency, for example, as disclosed in Japanese Patent Application Laid-Open No. H11-103807, "Photothermal Hybrid Panel", the thickness of the surface sealing resin is reduced by the lower sealing resin. In some cases, the heat radiation amount passing through the rear surface is set to be larger than the heat radiation amount passing through the front surface by setting the heat radiation amount through the back surface to be greater than the thickness of the rear heat collecting plate.

However, the present invention specifies only the thickness of the sealing resin before thermocompression bonding, and does not clearly disclose whether there is a difference in thickness between the front and back surfaces after thermocompression bonding. Depending on the fluidity (melt flow rate) of the sealing resin and the heating and pressurizing conditions during lamination, there is a good possibility that the resin will flow from the front to the back in the gap between cells during thermocompression bonding, and maintain a stable thickness. It is difficult. Further, increasing the thickness of the front surface resin leads to an increase in cost, and reducing the thickness of the rear surface resin causes problems such as cell cracking.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and is directed to a photothermal hybrid panel for extracting both electricity and heat from sunlight, which has high heat collection efficiency and excellent mass productivity. It is intended to provide.

[0014]

According to a first aspect of the present invention, a transparent organic compound resin film is used as a surface member of a photothermal hybrid panel, and the thickness thereof is set at 38.
５０50 μm.

According to a second aspect of the present invention, the surface sealing resin and the back surface sealing resin of the photothermal hybrid panel are made of an ethylene-vinyl acetate copolymer film, and the vinyl acetate content of the surface sealing resin is 20% by weight. % And thickness is 800
1000 μm, the content of vinyl acetate in the back sealing resin is 30% by weight or more, and the thickness is 230 to 600 μm.
It is characterized by being.

According to a third aspect of the present invention, the component members of the solar heat collector of the photothermal hybrid panel are two metal tubes, a flat metal plate and a corrugated metal plate, which are welded to collect heat and flow water. It is characterized in that both functions are formed.

The invention according to claim 4 is characterized in that it is a manufacturing method in which each of the laminates is stacked face-up and sealed by using the solar heat collector as a structural support.

The invention according to claim 5 is characterized in that the object to be laminated is a manufacturing method in which the object to be laminated is integrally heated and pressed by using a double vacuum chamber laminating apparatus.

According to a sixth aspect of the present invention, a cover glass is disposed on the front side of the photothermal hybrid panel, and a peripheral portion is fixed by a metal structure support. Is characterized in that an air layer of 20 to 30 mm intervenes.

[0020]

By using a transparent resin film for conventional tempered glass, the overall weight of the photothermal hybrid panel can be reduced, and it can be transported and handled in the manufacturing process,
Work efficiency during construction can be improved. In addition, by setting the film thickness to 38 μm or more, waviness on the film surface can be prevented, and by reducing the film thickness to 50 μm or less, thermal resistance can be reduced and heat conductivity can be improved.

Further, it is possible to coat the entire surface of the solar heat collector including the upper and lower header tubes, so that even if moisture penetrates from the surface cover glass, the resin film can be easily peeled off or the gold layer such as an electrode can be formed. The member does not corrode and the weather resistance can be improved. (Invention of Claim 1) Incidentally, Japanese Patent Application Laid-Open No. H11-307789 discloses an example in which a transparent fluorine film resin is used as a surface member of a solar cell module. Only an example using a photovoltaic element is disclosed, in which the surface hardness is specified in order to suppress the acceleration of peeling of the bent portion, and a polycrystalline silicon-based photovoltaic element that easily causes cell cracking is used. This is different from the present invention used for the purpose of improving the lightness and heat transfer for the photothermal hybrid panel.

Also, the vinyl acetate content of the surface sealing resin is 2
By setting the MFR (melt flow rate) to 1 g / min or less at 0% by weight or less, the resin becomes hard and non-flowable, and the thickness of the sealing resin after thermocompression bonding can be kept large. By setting the thickness to 800 μm or more, cell cracks can be prevented, and by setting the thickness to 1000 μm or less, thermal resistance can be reduced. On the other hand, when the vinyl acetate content of the back sealing resin and the adhesive resin is 30% by weight or more, the MFR
Is 30 g / min or more, the resin is soft and has a high fluidity, and the thickness of the sealing resin after thermocompression bonding can be kept thin. When the thickness is 230 or more, cell cracking can be prevented, and when it is 600 μm or less, thermal resistance can be reduced. In this manner, by reducing the thickness of the sealing resin on the back side from the front side, the amount of radiant heat on the back side is larger than on the front side, and the heat collection efficiency can be increased. (Invention of Claim 2) In addition to the above-mentioned effects, by providing an air layer between the front cover glass and the photothermal hybrid panel, the amount of heat radiation from the front side can be further suppressed. The thickness of the air layer is preferably 20 to 30 mm in consideration of the thermal degradation of the sealing resin during empty firing. If it is less than 20 mm, the heat collection efficiency is reduced,
In this case, heat is retained and the sealing resin is thermally degraded. (Invention of Claim 6) Further, FIG. 2 shows a schematic cross-sectional view and FIG. 3 shows a schematic vertical cross-sectional view of the solar heat collector of the present invention. The solar heat collector consists of a flat metal plate, a corrugated metal plate, and two upper and lower header tubes,
By welding them, both functions of heat collection and water flow are formed. The conventional solar heat collector inevitably increases the number of components of the water pipe in order to increase the water flow, which not only leads to an increase in cost but also a heavy weight. The solar heat collector used in the present invention has a small number of components, and can reduce processing labor and cost. Further, the weight is lighter than that of the conventional product, and the transportation in the manufacturing process and the transportation outside the company become more efficient.

Further, since the peak of the water passage is processed to be flat, the contact area with the heating plate is increased, and heat transfer from the heating plate during lamination can be ensured. Further, since the laminator heating plate is contacted not by point contact but by a surface as in the conventional water pipe, the force is dispersed and the water pipe is not collapsed.
(Invention of Claim 3) Further, by laminating and integrating the front transparent member / surface sealing resin and laminating and integrating the back sealing resin / back insulating resin / adhesive resin, the number of laminates is reduced, and the lamination time is reduced. Can be reduced. From the above, by using the existing loading automatic machine, it becomes possible to load the respective laminates face-up with the solar heat collector as a structural support of the photothermal hybrid panel, thereby improving mass productivity. Can be. (Invention according to claim 4) Accordingly, without using a female laminating jig, it can be directly guided to a laminating apparatus supply section, and can be laminated using a conventional double vacuum laminating apparatus equipped with a heat resistant rubber diaphragm. . Compared to the single vacuum chamber laminating apparatus, the use of a double vacuum chamber laminating apparatus makes it possible to control the degassing time and pressurizing time, shortening the laminating time, and also reduces the residual air bubbles and wrinkles of the transparent member on the surface. Can be suppressed. (Invention of claim 5)

[0024]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an external perspective view showing a schematic structure of the entire photothermal hybrid panel body of the present invention, FIG. 2 is a schematic cross-sectional view of the same photothermal hybrid panel body, and FIG.

First, the overall configuration will be described. The photothermal hybrid panel P manufactured in the module manufacturing process is transferred to a house maker factory, and assembled with an aluminum frame 501 together with a front cover glass 601 to form a 1m × 2m photothermal hybrid panel main body A. The panelized photothermal hybrid panel body A is transported to the construction site and
Along with the PV module of mx 1 m, it will be installed on the roof base plate.

Next, the detailed structure of the photothermal hybrid panel P will be described. The photothermal hybrid panel includes a surface transparent member 101, a surface sealing resin 102, a photovoltaic element 200,
Back surface sealing resin 301, back surface insulator 302, adhesive resin 30
3. It is composed of a solar heat collector 400.

<Surface Transparent Member 101> The quality required characteristics of the surface member of the photothermal hybrid panel include weather resistance, transparency, light weight and thermal conductivity. However, the photothermal hybrid panel is not directly exposed to the outside air, but is fixed to the aluminum frame together with the surface cover glass via the air layer, so that the weather resistance (especially the moisture permeability) of the so-called PV module and mechanical Does not require mechanical strength or load resistance. However, since light weight is required, it is desirable that the surface translucent resin is in the form of a film. Further, a material having high thermal conductivity is desirable in order to require thermal conductivity, and a thin film is desirable in order to reduce thermal resistance.

Preferred embodiments of the surface translucent resin include polyester films such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), thermoplastic resin films such as polyethylene film and vinyl chloride film, and tetrafluoroethylene-ethylene. Fluororesin films such as copolymers, tetrafluoroethylene polymers, vinyl fluoride polymers, and tetrafluoroethylene-perfluoroalkyl vinyl ether copolymers are exemplified.

<Surface Sealing Resin 102> Transparency, weather resistance, adhesiveness, and heat conductivity are required as quality requirements of the photothermal hybrid panel. As a sealing resin satisfying these requirements, an ethylene-vinyl acetate copolymer (EV
A), ethylene-methyl acrylate copolymer (EM
A), ethylene-ethyl acrylate copolymer (EE
A), polyvinyl butyral (PVB), urethane resin and the like.

Crosslinking is effective for improving the mechanical strength of the sealing resin. The method of crosslinking is not particularly limited as long as it generates an organic radical by heat and light. Preferably, a method of adding an organic peroxide to the resin in advance and heating the resin is preferred. It is also desirable to add a crosslinking aid to improve the degree of crosslinking.

The sealing resin used in the present invention is desirably excellent in heat resistance in view of a rise in temperature during empty firing.
It is preferable to add an antioxidant and a secondary antioxidant in advance to prevent thermal oxidation. Also, to improve the light resistance,
It is preferable to add an ultraviolet absorber and a silane coupling agent to improve the adhesive strength.

It is preferable that the sealing resin is a dry film in order to improve the laminating work efficiency, and it is preferable that the sealing resin has a two-layer structure with the front transparent member 101 in order to further increase the productivity. Also, to improve the deaeration performance,
Preferably, the surface is embossed.

<Photovoltaic Device 200> The photovoltaic device in the present invention can be applied to a single crystal, polycrystal, or amorphous silicon solar cell.

<Back Insulator 302> The properties required for the quality of the photothermal hybrid panel include insulation and heat resistance. Preferred embodiments satisfying these requirements include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and polyimide (PI).

<Solar Heat Collector 400> The solar heat collector comprises a flat plate 401, a corrugated plate 402, and upper and lower header tubes 403.
These are welded to form a water passage and a heat collecting portion, which can serve as a structural support during the production of the photothermal hybrid panel. The quality required characteristics of the solar heat collector are excellent in thermal conductivity and rigidity at the time of water passage processing, and preferred embodiments include a stainless steel plate and a galvanium steel plate. Also, in order to improve rust prevention and weather resistance,
It is desirable to apply a paint having excellent weather resistance, or to use a material obtained by laminating a film in advance.

[0037]

EXAMPLE In this example, a photothermal hybrid panel P having the structure shown in FIG. 1 was manufactured as follows.

That is, the surface member 100 (surface transparent member 101)
/ Surface sealing resin 102 laminated integral product), photovoltaic element 20
0, the back member 300 (back sealing resin 301 / back insulator 302 / adhesive resin 303 laminated integrated product) and the solar heat collector 400 are stacked and stacked by an existing stacking automatic machine to produce a stacked body, It was integrally sealed and pressed by a vacuum chamber laminating apparatus.

(Surface Transparent Member 101) An ethylene-tetrafluoroethylene copolymer film (thickness: 38 μm) was prepared as a surface member, and the surface to be bonded to the surface sealing resin 102 was subjected to corona discharge treatment in advance.

(Preparation of Surface Sealing Resin 102) Ethylene-vinyl acetate copolymer (vinyl acetate content 20% by weight, MFR 0.8 g / 10 min) 100 as a surface sealing resin
5 parts by weight of 1,1 bis (t-butylperoxy) 3,3,5 trimethylcyclohexane as a crosslinking agent
3 parts by weight of triallyl isocyanurate as a cross-linking assistant, and an ultraviolet absorber, an antioxidant, and a light stabilizer as other additives were mixed.
A sheet having a thickness of 0 μm was formed, and embossed with a thickness of 150 μm using an embossing roll.

(Preparation of Surface Member 100) The surface transparent member 101 and the surface sealing resin 102 were laminated by thermocompression bonding using a calender roll, and cut into the same size as the solar heat collector 400.

(Preparation of Back Sealant 301 and Adhesive Resin 303) Ethylene-vinyl acetate copolymer (vinyl acetate content 30% by weight, MFR 30 g / 10 m
in) 100 parts by weight and 1,1 bis (t) as a crosslinking agent
-Butylperoxy) 3, 3 and 5 parts by weight of trimethylcyclohexane, 3 parts by weight of triallyl isocyanurate as a crosslinking aid, and an ultraviolet absorber, an antioxidant and a light stabilizer as other additives. Then, using a T-die and an extruder, the back surface sealing resin 301 is a 230 μm thick sheet, the adhesive resin 303 is a 230 μm thick sheet,
Each was embossed with 50 μm.

(Back surface insulator 302) As a back surface insulator,
A biaxially stretched polyethylene terephthalate film (thickness: 38 μm) that had been subjected to corona treatment on both sides was prepared, and both sides of the sheet were embossed.

(Preparation of Back Member 300) The back sealing resin 301, the back insulator 302, and the adhesive resin 303 are thermocompression-bonded by a calendar roll and laminated and integrated, and are larger than the cell matrix 702 and smaller than the solar heat collector 400. Was cut as follows.

(Preparation of Photovoltaic Element 200) First, P-type impurities are doped into silicon for semiconductor, heated and melted in a vacuum furnace, solidified in a mold, and then divided and sliced into 150 mm × 155 mm × A 0.35 mm P-type silicon substrate was formed. Next, the N-type gas is thermally diffused to
A junction was formed, and an anti-reflection film was formed on the surface by a plasma CVD method. Next, the Ag electrode was fired, and solder was deposited on the surface thereof, thereby completing the polycrystalline silicon-based photovoltaic device 200.

(Preparation of Cell Strings 701) The photovoltaic element substrate 200 was put into an existing automatic machine, and the cell strings 701 shown in FIG. 6 were prepared as follows. That is,
Solder-dip hard copper (160μm thick, 2m wide)
m) as a negative electrode member, and then soldered on the back surface with solder dip hard copper (thickness 100 μm, width 5 mm) as a positive electrode member. The cell strings were electrically connected to form a cell string 701.

(Preparation of Cell Matrix 702) The cell strings 701 were put into an existing automatic machine, and a cell matrix 702 shown in FIG. 7 was prepared as follows. That is, the cell strings 701 are arranged in parallel in 5-6 such that the positive / negative electrodes are alternately arranged.
Was electrically connected by soldering with hard copper (thickness 230 μm, width 6 mm). Then, hard copper (thickness 230 μm,
An output lead wire having a width of 6 mm) laminated with a polyethylene terephthalate base material / silicone adhesive laminate film was soldered to the positive and negative electrodes to take out the electrode. Also, cell strings 2 to attach a bypass diode
The output leads were soldered every three rows.

<Lamination Step> The above-described front member 100, cell matrix 702, back member 300, and solar heat collector 400 were put into an existing laminating machine and laminated as follows. That is, first, the solar heat collector 400 is gripped by the suction robot and placed on the lamination line, and then the back member 300 is gripped by the suction robot and placed on the solar heat collector 400,
Next, the cell matrix 200 was gripped by the suction robot and placed on the back surface member 300, and then the surface member 100 was gripped by the suction robot and placed on the cell matrix 702 to obtain a laminated body of the photothermal hybrid panel P.

<Laminating Step> The object to be laminated is guided from the laminating line to the supply section of the double vacuum chamber laminating apparatus, the entire object to be laminated is covered with a chemiglass sheet, and the laminator heating plate 11 at about 150 ° C. (FIG. 8). The object to be laminated was introduced. Next, the upper chamber and the lower chamber were evacuated, and after about 3 minutes, the inside of the upper chamber was evacuated by about 300 mm while the lower chamber was evacuated.
Hg by returning to heat-resistant rubber diaphragm 21
In FIG. 8, the laminated body was pressure-compressed. This state was maintained for about 7 minutes until the completion of the crosslinking of the sealing resin. After holding, the module was taken out to obtain a photothermal hybrid panel P.

[0050]

As described above, according to the first aspect of the present invention, the total weight of the photothermal hybrid panel can be reduced by using a transparent resin film for the conventional tempered glass. In the example of the embodiment of the present invention, about 15 kg can be reduced as compared with the case where the tempered glass having substantially the same size as the solar heat collector is used. Thus, the efficiency of the transfer operation in the manufacturing process can be improved. In addition, it becomes possible to laminate and integrate with the surface sealing resin, which leads to an increase in the tact time of the lamination process. In addition, by reducing the thickness of the film to 38 to 50 μm, the thermal resistance can be reduced and the heat conductivity can be improved.

Further, since the entire surface of the solar heat collector can be covered, the resistance to water vapor transmission is improved. According to the test of the applicant according to the present invention, no change was observed in the electrical output characteristics and the appearance such as peeling and bubbles in the high-temperature and high-humidity test at 90 ° C./85% RH for 1,000 hours.

According to the second aspect of the present invention, the vinyl acetate content of the surface sealing resin is 20% by weight or less (MFR
Is 1 g / min or less) and the thickness is 800 to 1000 μm.
By setting it to m, the resin becomes hard and non-flowable, and the thickness of the sealing resin after thermocompression bonding can be kept large.
On the other hand, when the vinyl acetate content of the back sealing resin and the adhesive resin is set to 30% by weight or more (MFR is 30 g / min or more) and the thickness is set to 230 to 600 μm, the resin becomes soft and has high fluidity, The thickness of the sealing resin after the pressure bonding can be kept small. As a result, the amount of heat radiation on the back side is larger than that on the front side, and the heat collection efficiency can be increased.

Simultaneously with the above effects, the invention according to the sixth aspect allows an air layer having a thickness of 20 to 30 mm to be interposed between the surface cover glass and the transparent member of the photothermal hybrid panel, thereby further releasing the air from the surface side. The effect of suppressing the amount of heat can be improved.

According to experiments by the inventors of the present application,
The MFR of the surface sealing resin is 1 g / min and the thickness is 10
00 μm, MFR of back sealing resin and adhesive resin is 30 g
/ Min, and the thickness is set to 230 μm, and the air layer thickness between the surface cover glass and the surface transparent member of the photothermal hybrid panel is set to 20 mm.
Compared to a conventional panel that is sandwiched between front and back sealing resin with MFR of 30 g / min and thickness of 600 μm, laminated between tempered glass and solar heat collector and heat-pressed integrally, the radiation amount from the surface side is relatively large. 20% reduction.

According to the second aspect of the present invention, the solar heat collector is composed of a flat metal plate, a corrugated metal plate, and a small number of upper and lower two bender tubes, thereby reducing the weight.
Work efficiency can be improved and costs can be reduced. In addition, since the peak of the water passage is processed to be flat, the contact area with the heating plate is increased, and heat transfer from the heating plate is ensured. In addition, there is no problem of collapsing of the water pipe because it is in surface contact with the laminator heating plate.

According to the above description, the solar heat collector can be constructed without using a female laminating jig for solving the collapse of the heat collecting plate projections (water pipes and header pipes) and the tearing of the laminator heat-resistant rubber diaphragm. As a support, place the solar thermal collector projection side in a laminator heating plate shape,
Each laminate can be stacked face-up and produced using a double vacuum chamber laminator. Therefore, a conventional automatic laminating machine to a laminator automation line can be used, and significant productivity improvement can be realized.

[Brief description of the drawings]

FIG. 1 is an overall view of a photothermal hybrid panel of the present invention.

FIG. 2 is a schematic cross-sectional view of the photothermal hybrid panel of the present invention.

FIG. 3 is a schematic longitudinal sectional view of the photothermal hybrid panel of the present invention.

FIG. 4 is a schematic cross-sectional view of a conventional photothermal hybrid panel.

FIG. 5 is a schematic longitudinal sectional view of a conventional photothermal hybrid panel.

FIG. 6 is a schematic configuration diagram showing a cell string which is a component of the photothermal hybrid panel of the present invention.

FIG. 7 is a schematic configuration diagram showing a cell matrix which is a component of the photothermal hybrid panel of the present invention.

FIG. 8 is a schematic structural view of a double vacuum laminating apparatus used for manufacturing the photothermal hybrid panel of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 surface member 101 surface transparent resin 102 surface sealing resin 200 photovoltaic element 301 back surface sealing resin 302 back surface insulator 303 adhesive resin 400 solar heat collector 401 flat metal plate 402 corrugated metal plate 403 header tube 501 metal structure support 601 Surface cover glass 701 cell strings 702 cell matrix 11 Heat-resistant rubber diaphragm 21 Laminator heating plate 1a Surface transparent material 1b Photovoltaic element 1c Surface sealing resin 1d Back sealing resin 2 Adhesive 3 Solar collector 3a Water pipe 3b Heat collecting fin 3c header tube

Claims (6)

[Claims] At least a surface transparent member, a surface sealing resin, a photovoltaic element, a back surface sealing resin, a back surface insulator, and an adhesive resin are sequentially laminated on a solar heat collector. 2. The photothermal hybrid panel according to claim 1, wherein said surface transparent member is a resin film containing an organic compound resin and having a thickness of 38 to 50 μm. 2. A front sealing resin, a back sealing resin, and an adhesive resin of the photothermal hybrid panel are made of an ethylene-vinyl acetate copolymer film, and a vinyl acetate content of the surface sealing resin is 20% by weight. % Or less and the thickness is 80
2. The photothermal hybrid panel according to claim 1, wherein the content of vinyl acetate in the back sealing resin and the adhesive resin is 30% by weight or more and the thickness is 230 to 600 μm. 3. The solar heat collector of the photothermal hybrid panel includes at least a flat metal plate and a corrugated metal plate.
3. The photothermal hybrid panel according to claim 1, wherein the photothermal hybrid panel is made of a metal plate, and heat collection and water flow are performed by welding each of the metal plates. 4. The method of manufacturing a photothermal hybrid panel according to claim 1, wherein each of the laminates is stacked face-up using the solar heat collector as a support and the whole is press-sealed. 5. The method for manufacturing a photothermal hybrid panel according to claim 1, wherein the panel is manufactured using a double vacuum chamber laminating apparatus. 6. A cover glass is disposed on the front side of the photothermal hybrid panel according to claim 1, and a peripheral portion is fixed by a metal structure support. A hybrid panel main body, characterized in that an air layer of 20 to 30 mm is interposed therebetween.