KR20200065136A - Manufacturing method of Photovoltaic Thermal module with integrated process integration technology using jig - Google Patents

Abstract

The present invention relates to a photovoltaic thermal module including a photovoltaic module and a heat absorbing plate. A method of manufacturing a photovoltaic thermal module with a complex process integration technology using a jig comprises: a stack step (S10) of sequentially stacking a transparent file, a solar cell, an insulation film configuring a photovoltaic module, a heat absorbing plate installed therein with a water pipe, and a jig; a laminating step (S20) of melting an EVA between respective materials stacked by heat of a predetermined temperature or greater and pressure of the jig to integrally combining each constituent element of the photovoltaic module and the heat absorbing plate; a photovoltaic thermal module desorption step (S30) of separating the jig from an inner side of a laminating setting part (S) to separate the photovoltaic module and the photovoltaic thermal module coupled with the heat absorbing plate; and a casing step (S50) of adhering a protective glass to a front surface of the photovoltaic thermal module to couple an outer peripheral frame with an inclined surface. Therefore, a step of manufacturing the photovoltaic module and a step of manufacturing the heat absorbing plate are simultaneously performed by one process at an inner side of a laminating setting part using one jig so that respective materials may be integrally coupled. Accordingly, a manufacturing process and a manufacturing time may be significantly reduced to greatly reduce a manufacturing cost and a cost of a product, which is suitable for the mass production to be economical.

Description

Manufacturing method of photovoltaic thermal module with integrated process integration technology using jig using integrated jig technology

The present invention relates to a method of manufacturing a solar heat module, and in particular, a process of manufacturing a solar module with a solar cell and a process of combining a heat absorbing plate with a water pipe installed on the back of the solar module are simultaneously performed in one process to mass-produce It relates to a method of manufacturing a solar thermal module using a composite process integration technology using an improved jig to be suitable for.

In general, photovoltaic power generation using solar cells uses infinite and pollution-free solar energy, so there is no fuel cost, there is no air pollution or waste, power generation is a semiconductor device, and the control part is an electronic part. There is no In addition, the lifetime of the solar cell is at least 20 years or longer, it is easy to automate the power generation system, and has the advantage of minimizing the cost of operation and maintenance.

Recently, as the proportion of PV modules installed on roofs or rooftops of buildings or used for BIPV is gradually increasing, research and development is underway to reduce the weight of PV modules. Particularly, there have been attempts to install a photovoltaic system on the roof of a building in line with each country's solar power sub-policy, but because the weight of the conventional photovoltaic module itself is large, the weight of the entire photovoltaic system increases, so that the building can receive the photovoltaic power. In many cases, installation loads are judged to be unsuitable because they cannot bear the load of the power generation system.

The conventional solar module having such a large weight is about 20 kg in weight, and among them, the weight occupied by the tempered glass is about 13 kg in weight, and the thickness of the tempered glass is 3.0 to 3.2 mT. That is, tempered glass has a great influence on the weight of the solar module.

In connection with the prior art for reducing the weight of such a solar module, Patent Publication No. 10-2011-0076123 is disclosed. The prior art relates to a method of manufacturing a lightweight solar module by thinning the thickness of the tempered glass used in the solar module, and more specifically, the thickness of the tempered glass for the solar module is 0.5 to 2 mmT, and the light transmittance is 85% or more. By using thin-film tempered glass, while maintaining the existing efficiency, the weight of the solar module is reduced, and it is applied to a solar power plant, a solar module for residential and building use, and a lightweight solar that can reduce installation work and reduce installation cost. It relates to a method of manufacturing an optical module.

On the other hand, photovoltaic and solar thermal systems are photovoltaic thermal (PVT) products that combine the two into one power generation facility system, as they are the same as solar power generation facilities. It is a system that combines an air or liquid collection module with PV (Photo Voltaic), an existing photovoltaic module.The PV module produces electricity, which is the original function, and uses the heat generated from the back of the PV as a heat source to heat the building for ventilation. And a cogeneration system that produces hot water. This PVT system solves the overheating problem that appears in existing PV or BIPV (Building Integrated Photovoltaic System) and improves the power generation efficiency of PV.It improves thermoelectric conversion performance of PV modules by up to 200% compared to existing unit area PV modules. It is a system that can do it.

The PVT composite module may be classified into an air type and a liquid type according to a fluid used in a solar heat collector, and may be classified into a flat plate and a concentrating type according to the shape.

The pneumatic PVT composite module uses air as the heating medium in the form of an air layer and a channel on the back of the PV module. In the case of the liquid type, the absorption medium and the heating medium conduit are attached to the back of the solar module to heat the heating medium with water or antifreeze. Is to use liquid.

Germany, the United States, and Korea are countries that develop with interest in these technologies. Skyline Solar in the United States created the High Gain Solar (HGS), which lowers energy costs and obtains high energy yields by combining only the advantages of traceable solar and concentrated solar power generation, and Solimpeks Solar Energy in Turkey uses a technology called Volther hybrid solar collector. Hybridized.

That is, as illustrated in FIG. 1, the PVT absorbs heat generated by solar heat and transmits it by circulation of water by combining a heat absorbing plate provided with a water-filled water pipe on the back of the solar module.

However, such a conventional PVT is not easy to manufacture, such as a high defect rate and a lot of dust, since a heat absorbing plate having a solar module and a water pipe must be separately manufactured and then subjected to a step-by-step process to combine them. There have been many problems such as an increase in manufacturing time.

The present invention is to solve the above problems, the jig is improved to be suitable for mass production by integrating the process of manufacturing solar modules with solar cells and the process of combining heat absorbing plates with water pipes installed on the back of the solar modules. The object of the present invention is to provide a method of manufacturing a solar heat module to which a combined process integration technology is applied.

The manufacturing method of the solar thermal module to which the composite process integration technology using the jig according to the present invention is applied includes a transparent film, a solar cell and an insulating film constituting a solar module (PV; PhotoVoltaic) inside the laminating setting unit (S), A stacking step (S10) of sequentially stacking the heat absorbing plate on which the water pipe is installed and the jig; A laminating process (S20) of integrally combining each component of the solar module (PV) and a heat absorbing plate in one process by melting EVA inserted between each layer of materials stacked by heat of a predetermined temperature or higher and pressing of the jig; After removing the jig from the inside of the laminating setting unit (S), the solar module (PV) and the photovoltaic module (PVT; PhotoVoltaic Thermal) separating the photovoltaic module detaching process (S30); It is characterized by being manufactured by sequentially passing through a casing process (S50) in which a protective glass is adhered to the front surface of the PV module and the outer frame is coupled to the slope.

The manufacturing method of the solar heat module to which the composite process integration technology using the jig according to the present invention is applied is a process of manufacturing a solar module and a process of combining a heat absorbing plate on the back side of the solar module using a jig from the inside of the laminating setting unit. By proceeding integrally, the manufacturing process and manufacturing time can be drastically shortened, significantly reducing manufacturing costs and product prices, and it is more suitable for mass production, which is more economical.

1 is a schematic diagram of a laminating process for a solar module according to the prior art,
Figure 2 is a schematic diagram of the laminating process of the solar thermal module according to the present invention,
3 is a cross-sectional view showing a laminating process according to the present invention,
Figure 4 is a perspective view of the heat absorbing plate according to the present invention,
5 is a bottom photo of the jig according to the present invention,
Figure 6 is a block diagram showing the manufacturing process of the solar thermal module according to the present invention,
7 is a bottom photo of a completed solar module according to the present invention,
Figure 8 is a top photo of the completed solar module according to the present invention.

A preferred embodiment of the present invention will be described in detail through the accompanying drawings.

As shown in FIG. 2, the solar heat module to which the composite process integration technology using the jig of the present invention is applied is a sun that simultaneously combines the solar module (PV) and the heat absorbing plate 40 in one process using the jig 60. A method of manufacturing a photothermal module (PVT) is proposed.

To this end, as shown in FIG. 3, the heat absorbing plate 40 in which the transparent film 10, the solar cell 20, the insulating film 30, and the water pipe 50 are installed on the inside of the laminating setting part S is sequentially installed from the bottom. Laminate, and insert EVA between each material.

The EVA (Ethylene-Vinyl Acetate; vinyl ethylene acetate) is a polymer obtained by copolymerizing ethylene and vinyl acetate monomers. Low-concentration EVA is processed like ordinary low-density polyethylene and has excellent impact resistance (especially at low temperatures) and stress cracking resistance. Therefore, it is used for medium packaging materials, adhesives for laminate films, etc., and high concentration EVA is used as a raw material for adhesives.

The heat absorbing plate 40 forms a zigzag-shaped seating groove 41 on the upper side of a rectangular metal plate having a predetermined thickness, as shown in FIG. 4, and the seating groove 41 has a copper pipe material having a corresponding shape. The water pipe 50 is inserted and coupled.

At this time, the water pipe 50 is configured as a structure that circulates outward when water stored therein rises due to heat transmitted from the sun.

On the other hand, as shown in Figure 5, the front surface of the jig 60 according to the present invention is formed with a contact groove 61 corresponding to the shape of the water pipe 50, the jig 60 coupled to the uppermost is transparent The film 10, the solar cell 20, the insulating film 30, and the heat absorbing plate 40 on which the water pipe 50 is installed are pressed in close contact, and the back of the jig 60 is prevented from being distorted. In order to do so, a plurality of reinforcing bars 62 are combined in the longitudinal direction.

Therefore, the transparent film 10, the solar cell 20, the insulating film 30, and the heat absorbing plate 40 on which the water pipe 50 is installed are stacked in order from the bottom, and the water pipe 50 is placed inside the laminating setting part S. 3) after seating the jig 60 having a groove corresponding to the water pipe 50 as shown in FIG. 3 in the exposed upper part, the temperature inside the laminating setting part S is a predetermined temperature or higher (an embodiment of the present invention Furnace, 150°C) is heated, the EVA melts by heat, and each material except for the jig 60 is firmly and tightly bonded to each other by pressing the jig 60.

At this time, the jig 60 may be compressed downward by a separate pressing means to improve the bonding property of each material.

The present invention is manufactured by sequentially passing through the steps of the lamination process (S10), the laminating process (S20), the solar thermal module desorption process (S30), and the casing process (S50) as described in FIG. 6.

At this time, it is preferable that a heat absorbing plate reinforcement process (S40) is added between the solar thermal module desorption process (S30) and the casing process (S50).

In the lamination process (S10), a heat absorbing plate (40), a jig (60) having a transparent film (10), a solar cell (20), an insulating film (30), and a water pipe (50) mounted inside the laminating setting part (S) ) Are sequentially stacked, and EVA is inserted between the transparent film 10, the solar cell 20, the insulating film 30, and the heat absorbing plate 40.

In the laminating process (S20), the heat absorbing plate 40 is integrally coupled to the PV module PV by applying a predetermined amount of heat to each of the materials and EVA laminated in the lamination process (S10). To manufacture.

In the photovoltaic module desorption process (S30), after removing the jig 60 from the inside of the laminating setting part S, the photovoltaic module PVP integrally coupled with the heat absorbing plate 40 is separated, and the heat absorption In the plate reinforcement process (S40), a plurality of supports 42 are coupled in the longitudinal direction to prevent the water pipe 50 seated on the heat absorbing plate 40 from bending as shown in FIG. 7.

The support 42 is in close contact with the upper portion of the water pipe 50, and a portion where the water pipe 50 and the support 42 intersect forms a plurality of coupling parts 43 for solid coupling. (43) may be made by various coupling means such as riveting or ring coupling or spot welding.

In the casing process (S50), a solar glass module of the present invention is completed by combining a protective glass on the front surface of the PV module manufactured as shown in FIG. 8 and combining an outer frame on the slope.

The solar module to which the composite process integration technology using the jig of the present invention configured as described above is applied is a laminating setting unit S using a jig 60 for the process of manufacturing the solar module and the process of manufacturing the heat absorbing plate 40 By performing simultaneously in one process from the inside, each material can be integrally combined, thereby significantly reducing manufacturing costs and product costs by dramatically reducing the manufacturing process and manufacturing time. It is more economical

10: transparent film 20: solar cell
30: insulating film 40: heat absorbing plate
41: seating groove 42: support
43: coupling portion 50: water pipe
60: jig 61: close groove
62: reinforcement

Claims (4)

Transparent film 10 and solar cell 20 and insulating film 30 constituting a solar module (PV; PhotoVoltaic) inside the laminating setting unit (S), heat absorbing plate 40 with water pipe 50 installed And, a lamination process (S10) of sequentially stacking the jig 60;
Laminating process (S20) to integrally combine each component of the PV module (PV) and the heat absorbing plate (40) in one process by melting EVA inserted between each layer of materials stacked by heat and pressurizing the jig over a certain temperature. );
After removing the jig 60 from the inside of the laminating setting part S, the solar module detaching process (PVT; Photovoltaic Thermal) that separates the photovoltaic module (PVT) combined with the heat absorbing plate 40 ( S30);
A casing process (S50) in which a protective glass is adhered to the front surface of the PV module (PVT) and an outer frame is coupled to the slope;
A method of manufacturing a solar thermal module using a composite process integration technology using a jig, characterized in that it is manufactured sequentially.
According to claim 1,
After the desorption process (S30), a plurality of supports 42 are closely attached to the upper side of the water pipe 50 so that the water pipe 50 seated on the heat absorbing plate 40 does not escape, and the water pipe 50 and the support 42 A jig characterized in that a heat absorbing plate reinforcing process (S40) is formed at a crossing part to form a plurality of coupling parts 43 composed of fixing means including riveting or ring coupling or spot welding for solid coupling. A method of manufacturing a solar heat module to which a complex process integration technology using a technology is applied.
According to claim 1,
A contact groove 61 corresponding to the shape of the water pipe 50 is formed on the front surface of the jig 60, so that the jig 60 coupled to the uppermost side is a transparent film 10, a solar cell 20, and an insulating film. (30), a method for manufacturing a solar heat module to which a composite process integration technology using a jig is applied, characterized in that the heat absorbing plate (40) on which the water pipe (50) is installed is pressed in close contact.
According to claim 3,
A method of manufacturing a solar thermal module using a composite process integration technology using a jig, characterized in that a plurality of reinforcing bars 62 are combined in a longitudinal direction to prevent warping of the jig 60 on the rear surface of the jig 60.

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