Frame-integrated solar modules with excellent vibration resistance and strength and railway solar power generation devices using the same

Abstract

The present invention relates to a frame-integrated solar module with excellent vibration resistance and strength, and a railway solar power generation device using the same, which minimizes damage or deterioration of the solar module caused by vibration, physical shock, etc., through gelling technology, and simplifies the mechanical structure when installed in the space between railway tracks through the application of a frame-integrated solar module, thereby ensuring ease of installation and maintenance and reduction of installation costs. The frame-integrated solar module with excellent vibration resistance and strength according to the present invention comprises: a flat frame having module fixing parts on both sides; a front transparent substrate disposed opposite to the flat frame; an encapsulating material provided between the flat frame and the front transparent substrate, and a solar cell encapsulated by the encapsulating material; and a cell protective film provided between the solar cell and the front transparent substrate and encapsulated by the encapsulating material. The structure comprises an edge sealing material provided in the border area between the flat frame and the front transparent substrate; wherein the structure in which the encapsulating material, the solar cell, the cell protection film, and the edge sealing material are interposed between the flat frame and the front transparent substrate is formed by a single laminating process.

Description

Technology Field

[0001] The present invention relates to a frame-integrated photovoltaic module with excellent vibration resistance and strength and a railway photovoltaic power generation device using the same. More specifically, the invention relates to a frame-integrated photovoltaic module with excellent vibration resistance and strength and a railway photovoltaic power generation device using the same, which minimizes damage or deterioration of the photovoltaic module caused by vibration or physical impact through gelling technology, and simplifies the mechanical structure when installed in the space between railway tracks by applying a frame-integrated photovoltaic module, thereby ensuring ease of installation and maintenance and reducing installation costs. Background Technology

[0002] When installing solar modules for solar power generation, the space utilization of the installation site is becoming increasingly important. Installing solar modules on idle farmland or mountain slopes not only results in low space utilization but also acts as an aesthetic detriment. For this reason, installation sites for solar modules are expanding to include building exterior walls, roofs, road sound barriers, and the like.

[0003] Railways have recently been attracting increasing attention in terms of space utilization and the use of existing infrastructure. In particular, since the space between railway tracks is essentially idle space, utilizing this inter-track space for solar power generation offers significant advantages in terms of space efficiency. Furthermore, as power facilities such as transmission lines are equipped near railway tracks to supply electricity to rolling stock, the power generated by solar energy can be effectively processed using these facilities.

[0004] As a concrete example of utilizing the space between railway tracks for solar power generation, the project of Sun-Ways of Switzerland (see reference) is widely known. They demonstrate that solar modules can be installed quickly in the space between tracks and that maintenance is easy through their patented Sun-Ways system and mechanized equipment. For reference, the applicant attempted to verify matters related to Sun-Ways' patents but was unable to obtain suitable information.

[0005] Looking at another example of a technology for installing solar modules in the space between tracks, Korean Registered Patent No. 2756679 (Patent Document 1) presents a technology in which protrusions (211) are provided on both sides of a solar cell panel (210), and the screw spikes (130) of a concrete track (100) are fixed to the solar cell panel (210) through a spike-attached bracket (230).

[0006] In the case of Korean Registered Patent No. 2737924 (Patent Document 2), a method is adopted in which a 'U'-shaped solder-attached bracket (230) is fixed to each rail (110), and a solar panel (110) is mounted and fixed in the 'U'-shaped space.

[0007] In addition, Korean Published Patent No. 2024-0015441 (Patent Document 3) discloses a technology for fixing a solar cell module (20) to a rail (70) using a wire fixing device (30). Furthermore, Korean Registered Patent No. 2138190 (Patent Document 4) discloses a technology for fixing a solar module (100) to a rail (10) using a coupling flange (300), and Korean Registered Patent No. 1253298 (Patent Document 5) discloses a method of providing elastic coupling protrusions (23) on both sides of a solar cell plate (20) and allowing the elastic coupling protrusions (23) to be coupled to a coupling groove (17) provided in the rail (15).

[0008] In the case of Japanese Patent Publication No. 2004-311502 (Patent Document 6), a technique is disclosed in which a frame-shaped reinforcing plate (4) is provided on the edge of a solar cell (2), and a solar cell module formed into a mountain shape by folding the reinforcing plate (4) is provided on the inside of the track in a hinge shape.

[0009] In addition, Korean Patent Publication No. 2024-0005358 (Patent Document 7) discloses a solar module support for a ballast track in which a base plate (110) and a shear activity prevention wall (120) are embedded in a ballast track (200) such as around a sleeper, and a solar cell module (300) is supported by a module support fixing part (130) provided on the base plate (110).

[0010] As described above, various technologies have been proposed for installing solar modules in the space between railway tracks. However, the technologies disclosed in Patent Documents 1 to 7 have fundamental problems in terms of ease of installation, installation cost, and structural complexity. The technologies disclosed in Patent Documents 1 to 7 require an additional mechanical configuration or a complex mechanical configuration for fixing the solar modules toward the track side.

[0011] For example, Patent Document 1 requires that protrusions (211) be provided on both sides of the solar panel (210) for connection with a spike-attached bracket (230), Patent Document 2 requires a complex solder-attached bracket (230) in the shape of a 'U', and Patent Document 3 requires that a bracket be provided on the side wall of the solar module (20) for connection with a wire fixing device (30). In addition, Patent Document 4 requires a module control device (200) configured to include a detachable flange, a fixing block, and a fixing bracket, and Patent Document 5 requires that elastic coupling protrusions (23) be provided on both sides of the solar panel (20). Furthermore, in the case of Patent Document 6, a mountain-shaped reinforcing plate and a hinge structure are required, and Patent Document 7 requires a complex structure composed of a base plate (110), a shear movement prevention wall (120), and a module support fixing part (130).

[0012] In the prior art, the fundamental reason for the mechanical complexity of fixing photovoltaic modules to the line side is the use of conventional standardized photovoltaic modules. Conventional photovoltaic modules have a structure in which solar cells are provided between glass substrates or between a glass substrate and a backsheet, and a picture frame is attached to the edges thereof (see Fig. 1a of Patent Document 8).

[0013] As such, since conventional solar modules have a rectangular shape, in order to fix them to the line side, an additional mechanical configuration must be provided on one side of the solar module, or separate complex mechanical means must be required.

[0014] Meanwhile, in order to install solar modules in the space between railway tracks and realize smooth solar power generation, countermeasures must be prepared against vibrations transmitted from railway vehicles and physical damage caused by foreign objects such as stones. In other words, the vibration resistance and strength of the solar modules must be ensured.

[0015] However, as previously described, conventional technology utilizes standard photovoltaic modules. Since standard photovoltaic modules have a structure in which encapsulation materials and solar cells are interposed between glass substrates or between glass substrates and backsheets, there are fundamental limitations to their vibration resistance, and the possibility of glass breakage due to physical impact remains. Prior art literature

[0016] Korean Registered Patent Publication No. 2756679 (Published Jan. 22, 2025) Korean Registered Patent Publication No. 2737924 (Published Dec. 5, 2024) Korean Published Patent Publication No. 2024-0015441 (Published Feb. 5, 2024) Korean Registered Patent Publication No. 2138190 (Published July 27, 2020) Korean Registered Patent Publication No. 1253298 (Published Apr. 11, 2013) Japanese Published Patent Application No. JP 2004-311502 (Published Nov. 4, 2004) Korean Published Patent Publication No. 2024-0005358 (Published Jan. 12, 2024) Korean Registered Patent Publication Korean Patent Publication No. 2741286 (Published Dec. 11, 2024) Korean Patent Publication No. 2838159 (Published July 24, 2025) Korean Patent Publication No. 2825190 (Published June 26, 2025) The problem to be solved

[0017] The present invention has been devised to solve the aforementioned problems, and aims to provide a frame-integrated solar module with excellent vibration resistance and strength, and a railway solar power generation device using the same, which minimizes damage or deterioration of the solar module caused by vibration or physical shock through gelling technology, and simplifies the mechanical structure when installed in the space between railway tracks by applying a frame-integrated solar module, thereby ensuring ease of installation and maintenance and reducing installation costs. means of solving the problem

[0018] A frame-integrated photovoltaic module with excellent vibration resistance and strength according to the present invention for achieving the above objective comprises: a flat frame having module fixing parts on both sides; a front transparent substrate disposed opposite to the flat frame; an encapsulating material provided between the flat frame and the front transparent substrate, and a solar cell encapsulated by the encapsulating material; a cell protective film provided between the solar cell and the front transparent substrate and encapsulated by the encapsulating material; and an edge sealing material provided in the border area between the flat frame and the front transparent substrate; wherein the structure in which the encapsulating material, the solar cell, the cell protective film, and the edge sealing material are interposed between the flat frame and the front transparent substrate is formed by a single laminating process.

[0019] The front transparent substrate is made of a transparent polymer film.

[0020] Transparent polymer film is a fluorine-based polymer film.

[0021] The front transparent substrate is a glass substrate.

[0022] The cell protection film is composed of a mesh made of glass fibers.

[0023] The flat frame is configured to include a flat section and module fixing sections provided on both sides of the flat section, and the module fixing sections are composed of a vertical member and a horizontal member, wherein the vertical member is provided in a form perpendicular to the flat section, and the horizontal member is provided facing outward from the flat section while forming a form orthogonal to one end of the vertical member.

[0024] The horizontal members of each module fixing part provided on both sides of the flat plate can be fixed to the railway track side.

[0025] Each of the front transparent substrate and the flat frame is divided into an encapsulation area and a border area, and a fourth encapsulation material, a cell protection film, a third encapsulation material, a solar cell, a second encapsulation material, an insulating film, and a first encapsulation material are sequentially laminated in the encapsulation area of ​​the front transparent substrate, an edge sealing material is placed in the border area of ​​the front transparent substrate, and a flat frame is placed to cover both the edge sealing material and the first encapsulation material, and a single laminating process is performed to complete the frame-integrated photovoltaic module.

[0026] The thickness of the edge sealing material is equal to the total thickness of the structure composed of the fourth encapsulant, cell protection film, third encapsulant, solar cell, second encapsulant, insulating film, and first encapsulant, or does not exceed 10% of the total thickness.

[0027] A rigidity-giving member is provided on each of the upper and lower parts of the flat plate section to distribute the load applied to the flat plate frame.

[0028] A bubble discharge-height compensation member is provided together with an edge sealing material in the edge area between the flat frame and the front transparent substrate, and the bubble discharge-height compensation member maintains the separation distance between the flat frame and the front transparent substrate during lamination to prevent the encapsulating material from leaking out.

[0029] A second edge sealing material is further provided on the outer side of the edge area equipped with a bubble discharge-height compensation member and an edge sealing material, and the second edge sealing material is provided after the laminating process is completed.

[0030] A railway solar power generation device using a frame-integrated solar module according to the present invention comprises: a first module mounting bracket provided along a first track on the inner side of a first track in the space between railway tracks; a second module mounting bracket provided along a second track on the inner side of a second track in the space between railway tracks; a first mounting pad provided on one side of the first module mounting bracket facing the space between tracks; a second mounting pad provided on one side of the second module mounting bracket facing the space between tracks; a frame-integrated solar module in which a horizontal member of a module fixing part provided on each of both sides is mounted on the first mounting pad and the second mounting pad, respectively; and a first fixing member for fixing the horizontal member mounted on the first mounting pad. It comprises a second fixing member that fixes a horizontal member seated on a second mounting pad; wherein the height of the first module mounting bracket is lower than the height of the second module mounting bracket, and the frame-integrated solar module is arranged at an angle corresponding to the height difference between the first module mounting bracket and the second module mounting bracket.

[0031] A frame-integrated photovoltaic module has a structure in which a solar cell encapsulated by an encapsulating material is interposed between a flat frame and a front transparent substrate. The flat frame is configured to include a flat section and module fixing sections provided on both sides of the flat section. The module fixing sections are composed of a vertical member and a horizontal member. The vertical member is provided in a form perpendicular to the flat section, and the horizontal member is provided facing outward from the flat section while forming a form orthogonal to one end of the vertical member.

[0032] A fixing mounting pad that contacts a horizontal member is provided on one side of the first fixing member, and when the first module mounting bracket, the frame-integrated solar module, and the first fixing member are combined, the upper surface of the first mounting pad of the first module mounting bracket, the horizontal member, and the lower surface of the fixing mounting pad of the first fixing member have the same inclination, and a fixing mounting pad that contacts a horizontal member is provided on one side of the second fixing member, and when the second module mounting bracket, the frame-integrated solar module, and the second fixing member are combined, the upper surface of the second mounting pad of the second module mounting bracket, the horizontal member, and the lower surface of the fixing mounting pad of the second fixing member have the same inclination.

[0033] Frame-integrated photovoltaic modules are arranged in a repeating pattern adjacent to each other along the length of the track.

[0034] When a horizontal member of one side module fixing part of a frame-integrated solar module is seated on the first mounting pad of a first module mounting bracket, and a first fixing member is mounted so that a fixing mounting pad is in close contact with the horizontal member, the fixing state of the horizontal member is completed when the first fixing member and the first module mounting bracket are fastened together. When a horizontal member of the other side module fixing part of a frame-integrated solar module is seated on the second mounting pad of a second module mounting bracket, and a second fixing member is mounted so that a fixing mounting pad is in close contact with the horizontal member, the fixing state of the horizontal member is completed when the second fixing member and the second module mounting bracket are fastened together.

[0035] The first mounting pad and the second mounting pad are made of a polymer material having electrical insulation properties. Effects of the invention

[0036] The frame-integrated photovoltaic module with excellent vibration resistance and strength according to the present invention and the railway photovoltaic power generation device using the same have the following effects.

[0037] Through gelling technology for solar modules achieved by thickening the encapsulation material, damage or degradation of solar cells from external vibrations and physical shocks can be minimized. Additionally, a cell protection film interposed between the solar cells and the front transparent substrate enhances the bonding strength of the solar module and provides additional protection against the external physical environment. Furthermore, the rigidity and flexibility of the solar module can be ensured by applying a flexible, high-strength transparent polymer film as the front transparent substrate. Moreover, since the railway solar power generation system is completed based on a frame-integrated solar module equipped with a module fixing part, the mechanical structure is very simplified, thereby ensuring ease of installation and maintenance, as well as reduced installation costs. Brief explanation of the drawing

[0038] FIGS. 1 and 2 are configuration diagrams of a frame-integrated photovoltaic module with excellent vibration resistance and strength according to one embodiment of the present invention. FIG. 3a is a configuration diagram of a frame-integrated photovoltaic module with an edge sealing structure of the second embodiment applied, FIG. 3b is a configuration diagram of a frame-integrated photovoltaic module with an edge sealing structure of the second embodiment applied, and Figures 4 and 5 are perspective views of a flat frame. FIG. 6 is a schematic diagram of a railway photovoltaic power generation device according to one embodiment of the present invention. FIGS. 7 and FIGS. 8 are cross-sectional views of a railway photovoltaic power generation device according to one embodiment of the present invention. Figures 9a to 9d are photographs showing the change in thickness of a photovoltaic module depending on whether an edge sealing material and a bubble discharge-height compensation member are applied. Specific details for implementing the invention

[0039] The present invention presents technology related to a railway solar power generation device.

[0040] In this specification, "railway photovoltaic power generation device" refers to a device that implements photovoltaic power generation by installing photovoltaic modules in the space between railway tracks, and "space between railway tracks" refers to the space between two railway tracks.

[0041] Specifically, the present invention provides technology regarding a photovoltaic module applied to a railway photovoltaic power generation device and technology regarding the mechanical structure of a railway photovoltaic power generation device to which the photovoltaic module is applied.

[0042] As previously described in the 'Technology Forming the Background of the Invention,' solar modules applied to the space between railway tracks must be capable of physical protection from vibrations generated during the movement of railway vehicles and impacts caused by foreign substances such as stones; furthermore, when implementing a railway solar power generation device, mechanical simplification is required to facilitate installation and maintenance and to reduce installation costs.

[0043] The photovoltaic module and railway photovoltaic power generation device according to the present invention meet these requirements. That is, the photovoltaic module according to the present invention possesses excellent vibration resistance and strength, and the railway photovoltaic power generation device according to the present invention presents a simplified mechanical structure.

[0044] The vibration resistance and strength of the photovoltaic module according to the present invention are secured by 'jellying technology'. 'Jellying technology' is a technology for preventing damage or degradation of solar cells caused by vibration and physical shock, and is a technology that minimizes the transmission of external vibration and physical shock to solar cells by thickening the encapsulation layer.

[0045] The gelling technology is implemented based on edge sealing technology, and the presence of edge sealing enables the thickening of the encapsulant layer. The inventor (Park Seong-cheol) has presented edge sealing technology through Korean Registered Patent No. 2838159 (Patent Document 9) and Korean Registered Patent No. 2825190 (Patent Document 10).

[0046] Based on the edge sealing technology disclosed in Patent Documents 9 and 10, the present invention presents a novel photovoltaic module stacking structure specialized in excellent vibration resistance and strength, and names this as 'jellying technology'.

[0047] In addition to gelling technology, the vibration resistance and strength of the solar module can be doubled through the application of a cell protection film and a high-strength transparent polymer film as a front transparent substrate. The cell protection film is applied between the front transparent substrate and the solar cells to protect them from physical impacts such as stones, while the flexible, high-strength transparent polymer film not only provides physical protection for the solar module and solar cells but also minimizes the transmission of external vibrations to the solar cells.

[0048] Meanwhile, the simplified mechanical structure of the railway solar power device according to the present invention is realized by the application of a frame-integrated solar module.

[0049] A frame-integrated solar module refers to a module in which the solar module and the frame are integrated, and the basic concept of the frame-integrated module is consistent with the 'frame-integrated solar module with a G to S structure' disclosed in Patent Document 8, which is a previously registered patent of the present inventor. As with Patent Document 8, the frame-integrated solar module has a structure in which a solar cell is encapsulated between a flat frame and a front transparent substrate, and the flat frame is equipped with a module fixing part that serves as a mechanical medium.

[0050] The module fixing part performs the role of a frame of the prior art (see Fig. 1a of Patent Document 8) and serves as a mechanical medium that enables mounting to a specific structure as described in Patent Document 8. Patent Document 8 describes that mounting to a specific structure is possible through a bolt connection penetrating the module fixing part.

[0051] In one aspect, the present invention may be viewed as a specific and specialized application example of the frame-integrated photovoltaic module disclosed in Patent Document 8. That is, the specific structure to which the frame-integrated photovoltaic module is applied is a railway track, and the module fixing part of the frame-integrated photovoltaic module is mounted on the railway track.

[0052] As described above in 'Technology constituting the background of the invention,' conventional solar modules are in the shape of a rectangular prism with a frame surrounding the perimeter, which requires additional mechanical configurations or separate complex mechanical configurations when mounted on the power line.

[0053] In contrast, in the case of the present invention, since the frame-integrated solar module is equipped with a module fixing part, connection with the line side using the module fixing part is possible, and based on this, mounting of the frame-integrated solar module to the line side is possible through a greatly simplified mechanical structure.

[0054] In addition, the railway solar power generation device according to the present invention has a structure in which a frame-integrated solar module is arranged to form an inclination at a certain angle, thereby minimizing the residue of contaminants on the front transparent substrate of the solar module. Furthermore, since the frame-integrated solar module according to the present invention does not have a picture frame-shaped frame of the prior art (see Fig. 1a of Patent Document 8), it can fundamentally prevent contamination problems such as foreign substances getting stuck between the frame and the solar module.

[0055] Meanwhile, the frame-integrated photovoltaic module according to the present invention shares some configurations with Patent Document 8 in that it employs a flat frame, but it has differences in configuration and effect with the frame-integrated photovoltaic module of Patent Document 8 in that it adopts gelation technology to improve vibration resistance and strength, applies a cell protection film, and applies a flexible high-strength transparent polymer film as a front transparent substrate.

[0056] Hereinafter, a frame-integrated photovoltaic module with excellent vibration resistance and strength according to one embodiment of the present invention and a railway photovoltaic system using the same will be described in detail with reference to the drawings.

[0057] Frame-integrated solar modules with excellent vibration resistance and strength

[0058] Referring to FIG. 1, a frame-integrated photovoltaic module (100) with excellent vibration resistance and strength according to one embodiment of the present invention has a structure in which a solar cell (150) is encapsulated between a flat frame (110) and a front transparent substrate (120).

[0059] The flat frame (110) (more precisely, the flat portion (111) of the flat frame (110)) and the front transparent substrate (120) are each divided into a sealing material area and an outer edge area. The sealing material area is provided with a sealing material (131)(132)(133)(134) and a solar cell (150), and the edge area is provided with an edge sealing material (170).

[0060] Specifically, a first encapsulating material (131), an insulating film (140), a second encapsulating material (132), a solar cell (150), a third encapsulating material (133), a cell protection film (160), and a fourth encapsulating material (134) are sequentially laminated in the encapsulating material area of ​​a flat frame (110), an edge sealing material (170) is laminated in the edge area of ​​the flat frame (110), and a front transparent substrate (120) is provided to cover both the fourth encapsulating material (134) and the edge sealing material (170).

[0061] When a laminating process is performed on such a structure, a frame-integrated solar module (100) according to one embodiment of the present invention is completed. As shown in FIG. 2, the completed frame-integrated solar module (100) has a solar cell (150) enclosed by an encapsulating material (130) between a flat frame (110) and a front transparent substrate (120), a cell protection film (160) is provided between the solar cell (150) and the front transparent substrate (120), and the edge space between the flat frame (110) and the front transparent substrate (120) is sealed by an edge sealing material (170). At this time, the laminating process is performed by applying pressure to the flat frame (110).

[0062] A frame-integrated photovoltaic module according to one embodiment of the present invention is characterized by 1) thickening of the encapsulant (130) based on an edge sealing structure, 2) strengthening of the bonding strength of the photovoltaic module and protection of the solar cell (150) through a cell protection film (160), 3) application of a flexible, high-strength transparent polymer film as a front transparent substrate (120), and 4) application of a flat frame (110) equipped with a module fixing part (112), and these characteristics are described as follows.

[0063] As described above, in a frame-integrated solar module (100) according to one embodiment of the present invention, four encapsulating materials, including the first to fourth encapsulating materials (131), (132), (133), and (134), are applied. By applying these multiple encapsulating materials, the encapsulating materials are made thick, thereby protecting the solar cell (150) from external vibrations and physical shocks, such as vibrations generated when a railway vehicle moves and physical shocks caused by foreign substances like stones. That is, external vibrations and physical shocks are absorbed by the thickened encapsulating materials, and the transmission to the solar cell (150) is minimized. In the present invention, the protection of the solar cell (150) through the thickening of such encapsulating materials is named "jellying technology."

[0064] Thickening of the encapsulant through the application of multiple encapsulants is implemented based on an edge sealing structure. That is, thickening of the encapsulant is possible only when an edge sealing structure is applied. Referring to the experimental examples described below, even when encapsulants of the same thickness are applied, a significant difference in the thickness of the final completed solar module occurs depending on the presence or absence of the edge sealing material (170). Thickening of the encapsulant based on the edge sealing structure and experimental examples thereof will be described in detail later.

[0065] For all of the first to fourth encapsulating materials (131)(132)(133)(134), polyolefin elastomer (POE) is considered the primary encapsulating material, and ethylene vinyl acetate copolymer (EVA) or other known encapsulating materials may also be used. POE has superior moisture penetration resistance and electrical insulation properties compared to EVA, and POE needs to be considered the primary encapsulating material for the long-life reliability of the photovoltaic module.

[0066] The cell protection film (160) is provided between the solar cell (150) and the front transparent substrate (120) and is formed in a shape impregnated with a sealing material. The cell protection film (160) can be configured in the form of a mesh made of glass fibers (see FIG. 5). By laminating, the solar module acquires a certain level of bonding strength, and the cell protection film (160) increases the bonding strength of the solar module by such lamination. In addition, since the cell protection film (160) is provided between the solar cell (150) and the front transparent substrate (120) in a shape impregnated with a sealing material, the solar cell (150) is additionally protected by the cell protection film (160) even if external physical impact, such as foreign substances like stones, strikes the front transparent substrate (120).

[0067] In this way, through the thickening of the packaging material named gelling technology and the cell protection film (160), damage or deterioration of the solar module and solar cell (150) can be prevented from vibrations and physical shocks occurring during the movement of the railway vehicle. In addition, the cell protection film (160) also acts as a factor that increases the bonding strength of the solar module itself.

[0068] The front transparent substrate (120) may be a high-strength transparent polymer film with flexibility or a glass substrate with improved brittleness, such as reinforced glass. A fluorine-based polymer film may be used as the transparent polymer film, and examples of fluorine-based polymer films include ethylene tetrafluoroethylene and fluorinated ethylene propylene.

[0069] When the transparent polymer film is applied as the front transparent substrate (120), it can be combined with a flat frame (110) made of steel plate material to improve the flexibility and rigidity of the solar module. The flat frame (110) made of steel plate material replaces the glass substrate of the prior art, and due to its material properties, it has significantly superior flexibility and rigidity compared to the glass substrate. By applying the transparent polymer film as the front transparent substrate (120) to this flat frame (110), the flexibility and strength of the solar module can be reinforced, and based on this, it is possible to respond to various external physical environments.

[0070] Next, we will explain the edge sealing structure that enables the thickening, or gelling, of the encapsulant material.

[0071] As previously explained, the flat frame (110) (more precisely, the flat portion (111) of the flat frame (110)) and the front transparent substrate (120) are each divided into a sealing material area and an outer edge area, and the edge sealing material (170) is provided in the edge area. The detailed configuration of the flat frame (110) will be described later.

[0072] The edge sealing material (170) increases the bonding strength between the flat frame (110) and the front transparent substrate (120) and prevents external moisture from penetrating into the solar module based on its moisture penetration resistance.

[0073] An edge sealing structure based on an edge sealing material (170) can be implemented in various embodiments. First, the edge sealing structure can be completed using only the edge sealing material (170) (see FIG. 1 and FIG. 2). Second, the edge sealing structure can be configured using a combination of the edge sealing material (170) and a bubble discharge-height compensation member (180) (see FIG. 3a). Third, the edge sealing structure can be completed using a combination of the first edge sealing material (171), the bubble discharge-height compensation member (180), and the second edge sealing material (190) (see FIG. 3b).

[0074] In the three embodiments above, the edge sealing material (170) and the first edge sealing material (171) are applied as the same material and may be composed of any one of PIB (polyisobutylene), polyurethane, silicone, or polysulfide. Here, PIB is considered the most preferred material for the edge sealing material (170) because it has excellent moisture penetration resistance as well as excellent gas diffusivity compared to other materials.

[0075] Previously, it was described that POE is primarily considered as a constituent material for the first to fourth packaging materials (131)(132)(133)(134). While POE has excellent moisture penetration resistance and electrical insulation properties, its bubble discharge properties are poor compared to EVA, etc. Therefore, in order to smoothly discharge bubbles generated from the POE packaging material during lamination, the gas diffusion properties of the edge sealing material (170) must be considered, and for this reason, PIB is primarily considered.

[0076] The thickness of the edge sealing material (170) prior to lamination is equal to or corresponds to the total thickness of the structure laminated in the encapsulation area, and this setting of the edge sealing material (170) thickness is intended for thickening the encapsulation material. If the thickness of the edge sealing material (170) is smaller than the total thickness of the structure laminated in the encapsulation area, pressure may be concentrated on the structure laminated in the encapsulation area during lamination, thereby damaging the thickening of the encapsulation material. Here, the structure laminated in the encapsulation area refers to a laminate of the first encapsulation material (131), insulating film (140), second encapsulation material (132), solar cell (150), third encapsulation material (133), cell protection film (160), and fourth encapsulation material (134). In addition, the thickness of the edge sealing material (170) corresponds to the total thickness of the structure laminated in the encapsulation area, which means that the thickness of the edge sealing material (170) does not exceed 10% of the total thickness of the structure.

[0077] The bubble discharge-height compensation member (180) plays a more decisive role in the thickening of the encapsulating material. The bubble discharge-height compensation member (180) is provided in the edge area together with the edge sealing material (170) and serves to maintain a constant distance between the flat frame (110) and the front transparent substrate (120) during lamination. The bubble discharge-height compensation member (180) must be composed of an electrically insulating material that has almost no change in shape and thickness even during high-temperature and high-pressure lamination. In one embodiment, the bubble discharge-height compensation member (180) can be composed of a polymer material with excellent heat resistance. In the experimental example described later, PTFE (Polytetrafluoroethylene) was applied as the constituent material of the bubble discharge-height compensation member (180).

[0078] The thickening of the sealing material due to the application of the edge sealing material (170) and the bubble discharge-height compensation member (180) is clearly confirmed through experimental results.

[0079] Experiments were conducted on the change in thickness of a solar module when only the thickness of the encapsulant is increased, and on the change in thickness of a solar module when the same encapsulant thickness is applied and whether an edge sealing material (170) and a bubble discharge-height compensation member (180) are applied. The results are shown in Table 1 and FIGS. 9a to 9d below. In FIGS. 9a to 9d, (a) is a photograph of a solar module manufactured according to each condition, and (b) shows the measured thickness of each solar module.

[0080] Bagging material / Edge sealing material / Air ejection-height compensation component Thickness of solar module after lamination (mm) POE(0.5mm) 7.15 POE(1mm) 7.34 POE(1mm)+PIB(2.5mm) 8.09 POE(1mm)+PIB(2.5mm)+PTFE(2mm) 8.32

[0081] Referring to Table 1 and Fig. 9a, the solar module was found to be 7.15 mm thick when the lamination process was performed using a 0.5 mm thick POE encapsulant. When only the thickness of the encapsulant was increased from 0.5 mm to 1 mm (see Fig. 9b), the thickness of the solar module after lamination increased by only 0.19 mm (7.34–7.15 mm), despite the 0.5 mm increase in the encapsulant thickness. This implies that a significant amount of the encapsulant was discharged to the outside of the module during the lamination process.

[0082] When an edge sealing material (170) with a thickness of 2.5 mm is applied while an encapsulant of the same thickness (1 mm) is applied (see FIG. 9c), the thickness of the solar module with the edge sealing material (170) applied is measured to be 8.09 mm, and the thickness of the solar module is increased by 0.75 mm (8.09-7.34 mm) by applying the edge sealing material (170), which is a result indicating that the amount of encapsulant discharged to the outside of the module during lamination is significantly reduced.

[0083] When an additional 2 mm thick bubble-ejection-height-compensation member (180) is applied in addition to the same thickness of encapsulating material (1 mm) and edge sealing material (170) (2.5 mm) (see FIG. 9d), the thickness of the solar module was measured to be 8.34 mm. Compared to the thickness of the solar module being 7.34 mm when the 1 mm encapsulating material is applied without the edge sealing material (170), it can be seen that when both the edge sealing material (170) and the bubble-ejection-height-compensation member (180) are applied, the 1 mm thick encapsulating material is completely maintained even after lamination.

[0084] As can be seen from the experimental results above, the thickening of the encapsulation material is achieved through the application of the edge sealing material (170) or through the application of the edge sealing material (170) and the bubble discharge-height compensation member (180) together, and through this thickening of the encapsulation material, that is, gelling technology, damage and deterioration of the solar module itself and the solar cell (150) can be prevented from external vibrations and physical shocks.

[0085] Specific embodiments of the edge sealing material (170) and the bubble discharge-height compensation member (180) are as follows.

[0086] According to the first embodiment, an edge sealing material (170) is provided in a square band shape with a certain thickness in the edge area of ​​the flat frame (110), specifically in the edge area of ​​the flat portion (111) constituting the flat frame (110) (see FIG. 1 and FIG. 2).

[0087] According to the second embodiment, a square band-shaped edge sealing material (170) and a three-dimensional unit shape-forming bubble discharge-height compensation member (180) are provided together in the edge area (see FIG. 3a). In one embodiment, the bubble discharge-height compensation member (180) may form a three-dimensional shape, for example, a rectangular prism shape, and is spaced apart at a certain distance in the edge area. The area where the bubble discharge-height compensation member (180) is provided and the area where the edge sealing material (170) is provided may overlap, or the bubble discharge-height compensation member (180) may be spaced apart at a certain distance on the inner or outer side of the area where the edge sealing material (170) is provided. For reference, the laminated structure of FIG. 3a represents the laminated structure before lamination, and when lamination is completed, the upper surface of the bubble discharge-height compensation member (180) and the front transparent substrate (120) are in contact with each other.

[0088] According to the third embodiment, an edge sealing structure can be completed through a combination of a first edge sealing material (171), a bubble discharge-height compensation member (180), and a second edge sealing material (190) (see FIG. 3b). Specifically, the edge area is divided into a first area and a second area outside of it, and the first edge sealing material (171) and the bubble discharge-height compensation member (180) are provided in the first area, and the second edge sealing material (190) is provided in the second area. Here, the second edge sealing material (190) is composed of a material different from the first edge sealing material (171), and specifically, it can be composed of at least one of silicone, polyurethane, and polysulfide.

[0089] The second edge sealing material (190), such as silicone, has relatively lower moisture penetration resistance compared to the PIB of the first edge sealing material (171), but has excellent high-temperature stability. However, since the material such as silicone has lower gas diffusivity than PIB, when the second edge sealing material (190) such as silicone is placed together with the first edge sealing material (171) to perform the laminating process, it is not easy to discharge bubbles. Therefore, when applying the second edge sealing material (190), it is preferable to provide the second edge sealing material (190) in a form that fills the space of the second region with the material such as silicone after the laminating is completed. For reference, the laminated structure of FIG. 3b represents the laminated structure before lamination, and when lamination is completed, the upper surface of the bubble discharge-height compensation member (180) and the front transparent substrate (120) are in contact with each other, and the second edge sealing material (190) is formed by being injected into the edge area after lamination while the upper surface of the bubble discharge-height compensation member (180) and the front transparent substrate (120) are in contact.

[0090] Above, the main features of the frame-integrated photovoltaic module (100) according to one embodiment of the present invention, 1) thickening of the encapsulant based on the edge sealing structure, 2) strengthening of the bonding strength of the photovoltaic module and protection of the solar cell (150) through the cell protection film (160), and 3) application of a flexible, high-strength transparent polymer film as a front transparent substrate (120). Finally, 4) a flat frame (110) equipped with a module fixing part (112) that enables application to a railway photovoltaic device will be described.

[0091] Referring to FIGS. 4 and 5, a flat frame (110) applied to a frame-integrated solar module (100) according to one embodiment of the present invention is divided into a flat portion (111) and a module fixing portion (112).

[0092] The flat frame (110) is made of a metal material with excellent thermal conductivity, and in one embodiment, it may be made of carbon steel, alloy steel, etc., such as SUS. For convenience of explanation, the following description will focus on the flat frame (110) being made of a 'steel plate' material.

[0093] The flat portion (111) of the flat frame (110) is divided into a sealing material area and a border area, and as previously described, a sealing material, a solar cell (150), and a cell protection film (160) are laminated in the sealing material area, and an edge sealing structure of the first to third embodiments described above (see FIG. 1, FIG. 2, FIG. 3a and FIG. 3b) including an edge sealing material (170) is provided in the border area.

[0094] The module fixing part (112) is provided on each side of the flat plate part (111), and the steel plate extends from each side of the flat plate part (111) and forms a shape that is bent twice. Specifically, the steel plate is bent downward at each side of the flat plate part (111) in a shape that is perpendicular to the flat plate part (111), and the downwardly bent steel plate is bent 90 degrees toward the outside of the flat plate part (111) at a certain point to form an arrangement parallel to the flat plate part (111).

[0095] This module fixing part (112) can be described as a combination of a vertical member (112a) and a horizontal member (112b). The vertical member (112a) is provided on both sides of the flat plate (111) in a form perpendicular to the flat plate (111), and the horizontal member (112b) is provided in a form perpendicular to one end of the vertical member (112a). At this time, the horizontal member (112b) is positioned toward the outside of the flat plate (111).

[0096] The module fixing part (112) serves as a mechanical medium when fixing the solar module to the line side. As described above in ‘Technology forming the background of the invention,’ the technologies disclosed in Patent Documents 1 to 7 require an additional mechanical configuration such as a protrusion (211) (Patent Document 1) on the solar module, or require a complex mechanical configuration.

[0097] In contrast, the present invention allows for the simplification of the mechanical structure of a railway solar power generation device, as the flat frame (110) is equipped with a module fixing part (112) and the module fixing part (112) acts as a mechanical medium for fixing a solar module, thereby eliminating the need for additional mechanical configurations.

[0098] Meanwhile, a rigidity-giving member (113) is provided on the upper and lower portions of the flat plate portion (111), respectively. The rigidity-giving member (113) is composed of a vertical member (113a) or a combination of a vertical member (113a) and a horizontal member (113b). The shape of the vertical member (113a) and the horizontal member (113b) of the rigidity-giving member (113) is the same as the vertical member (112a) and the horizontal member (112b) of the module fixing portion (112). However, when the rigidity-giving member (113) is composed of a combination of a vertical member (113a) and a horizontal member (113b), the horizontal member (112b) is positioned toward the inside of the flat plate portion (111).

[0099] These rigidity-giving members (113) improve the rigidity of the flat frame (110). For example, when a certain level of load is applied in the vertical direction of the flat frame (110), the rigidity-giving members (113) are provided on the upper and lower parts of the flat part (111), respectively, so that the load is distributed and the load is prevented from being concentrated on the module fixing part (112).

[0100] Above, a flat frame (110) having a module fixing part (112) that enables the application to a railway solar power device, which is a key feature of a frame-integrated solar module (100) according to one embodiment of the present invention, is described, which includes: 1) thickening of the encapsulation material based on an edge sealing structure; 2) strengthening of the bonding strength of the solar module and protection of the solar cell (150) through a cell protection film (160); 3) application of a flexible, high-strength transparent polymer film as a front transparent substrate (120); and 4) application to a railway solar power device.

[0101] Meanwhile, in the frame-integrated photovoltaic module (100) according to the present invention, the application of a cell protection film (160) may be omitted. In this case, the structure laminated in the encapsulation area of ​​the flat frame (110) forms a structure in which a first encapsulation material (131), an insulating film (140), a second encapsulation material (132), a solar cell (150), and a third encapsulation material (133) are sequentially laminated.

[0102] In addition, the frame-integrated solar module (100) with excellent vibration resistance and strength according to the present invention is also characterized in that it is completed through a single laminating process. That is, a structure including a sealing material, a cell protection film (160), and a solar cell (150) is placed in the sealing material area of ​​the front transparent substrate (120), and the edge sealing material (170) of the first to third embodiments is placed in the edge area of ​​the front transparent substrate (120). Then, a flat frame (110) is laminated in a manner that covers both the edge sealing material (170) and the sealing material, and then the laminating process is performed by pressing the flat frame (110) to complete the frame-integrated solar module (100) according to the present invention.

[0103] Railway solar power generation device using frame-integrated solar modules

[0104] Referring to FIGS. 6 to 8, a railway solar power generation device using a frame-integrated solar module according to an embodiment of the present invention is provided with a first module mounting bracket (211) and a second module mounting bracket (221), and the frame-integrated solar module (100) is provided in a form in which both ends are mounted on the first module mounting bracket (211) and the second module mounting bracket (221), respectively. Here, the frame-integrated solar module (100) refers to a frame-integrated solar module (100) having excellent vibration resistance and strength according to an embodiment of the present invention.

[0105] The railway is equipped with two tracks, namely a first track (11) and a second track (12), and the space between the first track (11) and the second track (12) is defined as the inter-track space, and in the inter-track space, a first module stand (211) is provided side by side along the first track (11) on the inner side of the first track (11), and a second module stand (221) is provided side by side along the second track (12) on the inner side of the second track (12). A frame-integrated solar module (100) is supported by the first module stand (211) and the second module stand (221), and such frame-integrated solar modules (100) are repeatedly arranged adjacently along the length direction of the tracks.

[0106] To minimize the transmission of vibrations from the track, the first module stand (211) and the second module stand (221) are each positioned at a certain distance from the first track (11) and the second track (12). For reference, if a structure exists on the track side, the distance between the track and the module stand may be increased.

[0107] Additionally, each of the first module stand (211) and the second module stand (221) may be manufactured in a form having a unit length, and a plurality of first module stands (211) or a plurality of second module stands (221) may be configured to be repeatedly arranged adjacently along the length direction of the track.

[0108] These first module mounting bracket (211) and second module mounting bracket (221) enable mounting and fixing of the frame-integrated solar module (100) and tilting of the frame-integrated solar module (100).

[0109] To this end, the height of the first module mounting bracket 211 is lower than the height of the second module mounting bracket 221 (H1<H2), and the height difference between the first module mounting bracket 211 and the second module mounting bracket 221 can be selectively designed as needed. However, since the mounting height of the photovoltaic module must be lower than the height of the track to avoid collision with trains, the height difference between the first module mounting bracket 211 and the second module mounting bracket 221 is limited by the height of the track.

[0110] Due to the presence of the height difference between the first module mounting bracket 211 and the second module mounting bracket 221, the frame-integrated photovoltaic module 100 mounted between the first module mounting bracket 211 and the second module mounting bracket 221 is arranged to be inclined at a predetermined slope.

[0111] The reason for arranging the frame-integrated photovoltaic module 100 to be inclined at a predetermined slope is to minimize the retention of foreign matter on the front transparent substrate 120 of the photovoltaic module. That is, as the photovoltaic module is arranged in an inclined form from the horizontal, even if foreign matter falls onto the front transparent substrate 120, it can easily fall off by gravity, and the foreign matter can be easily washed away by rain. In addition, the inclined arrangement of the frame-integrated photovoltaic module can minimize the retention of foreign matter, thereby suppressing the occurrence of hot spots induced by foreign matter and the like, and thus preventing a reduction in the power generation efficiency of the solar cell 150.

[0112] The mechanical configuration for mounting, fixing, and inclined arrangement of the frame-integrated photovoltaic module 100 will be described in detail as follows.

[0113] A first mounting pad (212) is provided on one side of the first module mounting bracket (211), specifically on one side of the first module mounting bracket (211) facing the space between tracks, and a second mounting pad (222) is provided on one side of the second module mounting bracket (221), specifically on one side of the second module mounting bracket (221) facing the space between tracks. The horizontal members (112b) of the module fixing parts (112) provided on both sides of the frame-integrated solar module (100) are each mounted on the first mounting pad (212) and the second mounting pad (222).

[0114] As previously explained, a height difference is set between the first module holder (211) and the second module holder (221) for the inclined arrangement of the frame-integrated solar module (100), and accordingly, an inclination corresponding to the height difference between the first module holder (211) and the second module holder (221) exists, so the frame-integrated solar module (100) mounted between the first module holder (211) and the second module holder (221) is mounted at the above inclination. Furthermore, as the horizontal member (112b) of the module fixing part (112) is parallel to the flat part (111) of the flat frame (110), the horizontal member (112b) of the module fixing part (112) is mounted on the first mounting pad (212) and the second mounting pad (222) at the above inclination.

[0115] In this way, as the horizontal member (112b) of the module fixing part (112) is structured to be seated on the first seating pad (212) and the second seating pad (222) at a specific inclination, for the horizontal member (112b) to be seated stably, the upper surface of the first seating pad (212) and the upper surface of the second seating pad (222) must also have the same inclination as the horizontal member (112b). Through this, the bottom surface of the horizontal member (112b) can be completely in contact with the upper surface of the first seating pad (212) and the upper surface of the second seating pad (222).

[0116] The first mounting pad (212) may be provided continuously along the length direction of the first module mounting bracket (211) or repeatedly spaced apart at a certain distance. Likewise, the second mounting pad (222) may also be provided continuously along the length direction of the second module mounting bracket (221) or repeatedly spaced apart at a certain distance.

[0117] The horizontal member (112b) of the module fixing part (112) seated on the first mounting pad (212) is fixed in a seated state by the first fixing member (213). The first fixing member (213) is formed in a shape that can cover the upper surface of the first module mounting bracket (211) and the upper surface of the horizontal member (112b) of the module fixing part (112), and a first fixing mounting pad (214) is provided on one side of the first fixing member (213) that contacts the horizontal member (112b).

[0118] A first fixing member (213) is mounted so that the first fixing pad (214) is in close contact with the upper surface of the horizontal member (112b), and when the first fixing member (213) is mounted, the horizontal member (112b) and the lower surface of the first fixing pad (214) have the same inclination to ensure complete contact between the upper surface of the horizontal member (112b) and the lower surface of the first fixing pad (214).

[0119] To summarize these structural features, when the first module holder (211), the frame-integrated solar module (100), and the first fixing member (213) are combined, the upper surface of the first mounting pad (212) of the first module holder (211), the horizontal member (112b), and the lower surface of the first fixing mounting pad (214) of the first fixing member (213) have the same inclination. Through this, the first module holder (211), the horizontal member (112b), and the first fixing member (213) can achieve a state of complete contact on the interface. For convenience of explanation, it can be said that the first mounting pad (212), the horizontal member (112b), and the first fixing mounting pad (214) have the same inclination when combined.

[0120] A horizontal member (112b) of a module fixing part (112) on one side of a frame-integrated solar module (100) is seated on the first mounting pad (212) of the first module mounting bracket (211), and a first fixing member (213) is mounted so that the first fixing mounting pad (214) is in close contact with the horizontal member (112b). Then, when the first fixing member (213) and the first module mounting bracket (211) are fastened together, the fixed state of the horizontal member (112b) is completed. Here, various methods can be used for fastening between the first fixing member (213) and the first module mounting bracket (211), and as an example, a bolt connection penetrating the first fixing member (213) and the first module mounting bracket (211) can be used.

[0121] The method of seating and fixing the horizontal member (112b) of the other side module fixing part (112) of the solar module on the second module mounting bracket (221) is the same as the fixing method of the first module mounting bracket (211).

[0122] Specifically, the horizontal member (112b) of the other side module fixing part (112) of the frame-integrated solar module (100) is seated on the second mounting pad (222) of the second module mounting bracket (221), and the second fixing member (223) is mounted so that the second fixing mounting pad (224) is in close contact with the horizontal member (112b). Then, when the second fixing member (223) and the second module mounting bracket (221) are fastened together, the fixed state of the horizontal member (112b) is completed. At this time, the upper surface of the second mounting pad (222) of the second module mounting bracket (221), the horizontal member (112b), and the lower surface of the second fixing mounting pad (224) of the second fixing member (223) have the same inclination. That is, the second mounting pad (222), the horizontal member (112b), and the second fixing mounting pad (224) have the same inclination when combined.

[0123] When mounting and fixing the frame-integrated solar module (100), the order of fixing the first module mounting bracket (211) and fixing the second module mounting bracket (221) is irrelevant, and the process can be carried out freely according to convenience. Additionally, one or more pairs of the first fixing member (213) and the second fixing member (223) can be applied to a single frame-integrated solar module (100).

[0124] Through the above method, a frame-integrated solar module (100) can be mounted and fixed at a certain angle between the first module mounting bracket (211) and the second module mounting bracket (221), and through the same method, frame-integrated solar modules (100) can be repeatedly arranged adjacently along the length direction of the track.

[0125] Meanwhile, the first mounting pad (212) and the second mounting pad (222), which are applied to the first fixing member (213) and the second fixing member (223) respectively, are preferably made of a material having electrical insulation and a certain level of elasticity. The reason elasticity is required for the first mounting pad (212) and the second mounting pad (222) is to absorb vibrations or physical shocks generated on the line side or the solar module side. In one embodiment, the first mounting pad (212) and the second mounting pad (222) may be composed of a high-strength polymer material having electrical insulation.

[0126] In addition, in the present invention, when the first fixing member (213) and the first module mounting bracket (211) are connected and when the second fixing member (223) and the second module mounting bracket (221) are connected, bolt connection to the horizontal member (112b) is avoided, thereby preventing corrosion of the horizontal member (112b) caused by bolting. Explanation of the symbols

[0127] 11: Track 1 12: Track 2 100 : Frame-integrated solar module 110 : Flat frame 111: Flat plate section 112: Module fixing section 112a : Vertical member 112b : Horizontal member 113 : Rigidity-imparting member 120 : Front transparent substrate 130 : Bag material 131 : 1st bag material 132 : 2nd bag material 133 : 3rd bag material 134: 4th encapsulating material 140: Insulating film 150 : Solar cell 160 : Cell protective film 170: Edge sealing material 171: First edge sealing material 180: Bubble discharge-height compensation member 190: Second edge sealing material 211: 1st Module Mount 212: 1st Mounting Pad 213: First fixing member 214: Fixing mounting pad 221: 2nd Module Mount 222: 2nd Mounting Pad 223: Second fixing member 224: Fixing mounting pad

Claims

Claim 1 delete Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 delete Claim 8 delete Claim 9 delete Claim 10 delete Claim 11 delete Claim 12 delete Claim 13 A first module mounting bracket provided along the first track on the inner side of the first track in the space between railway tracks; a second module mounting bracket provided along the second track on the inner side of the second track in the space between railway tracks; a first mounting pad provided on one side of the first module mounting bracket facing the space between tracks; a second mounting pad provided on one side of the second module mounting bracket facing the space between tracks; a frame-integrated solar module in which a horizontal member of a module fixing part provided on each of both sides is mounted on the first mounting pad and the second mounting pad, respectively; and a first fixing member for fixing the horizontal member mounted on the first mounting pad; A railway solar power generation device using a frame-integrated solar module, comprising: a second fixing member for fixing a horizontal member seated on a second mounting pad; wherein the height of the first module mounting stand is lower than the height of the second module mounting stand, and the frame-integrated solar module is arranged at an angle corresponding to the height difference between the first module mounting stand and the second module mounting stand. Claim 14 A railway solar power generation device using a frame-integrated solar module according to claim 13, wherein the frame-integrated solar module has a structure in which a solar cell encapsulated by an encapsulating material is interposed between a flat frame and a front transparent substrate, and the flat frame is configured to include a flat portion and module fixing portions provided on both sides of the flat portion, wherein the module fixing portions are composed of a vertical member and a horizontal member, wherein the vertical member is provided in a form perpendicular to the flat portion, and the horizontal member is provided facing outward from the flat portion while forming a form orthogonal to one end of the vertical member. Claim 15 A railway solar power generation device using a frame-integrated solar module according to claim 13, wherein a fixing mounting pad in contact with a horizontal member is provided on one side of a first fixing member, and when a first module mounting bracket, a frame-integrated solar module, and a first fixing member are combined, the upper surface of the first mounting pad of the first module mounting bracket, the horizontal member, and the lower surface of the fixing mounting pad of the first fixing member have the same inclination, and a fixing mounting pad in contact with a horizontal member is provided on one side of a second fixing member, and when a second module mounting bracket, a frame-integrated solar module, and a second fixing member are combined, the upper surface of the second mounting pad of the second module mounting bracket, the horizontal member, and the lower surface of the fixing mounting pad of the second fixing member have the same inclination. Claim 16 A railway solar power generation device using frame-integrated solar modules, characterized in that, in claim 13, the frame-integrated solar modules are repeatedly arranged adjacently along the longitudinal direction of the track. Claim 17 A railway solar power generation device using a frame-integrated solar module according to claim 15, wherein a horizontal member of a module fixing part on one side of a frame-integrated solar module is seated on a first mounting pad of a first module mounting bracket, and a first fixing member is mounted so that a fixing mounting pad is in close contact with the horizontal member, and the fixing state of the horizontal member is completed when the first fixing member and the first module mounting bracket are fastened, and the horizontal member of a module fixing part on the other side of a frame-integrated solar module is seated on a second mounting pad of a second module mounting bracket, and the fixing state of the horizontal member is completed when the second fixing member and the second module mounting bracket are fastened. Claim 18 A railway photovoltaic power generation device using a frame-integrated photovoltaic module, characterized in that, in claim 13, the first mounting pad and the second mounting pad are made of a polymer material having electrical insulating properties. Claim 19 A railway solar power generation device using a frame-integrated solar module, characterized in that, in claim 14, the front transparent substrate and the flat frame are each divided into an encapsulation area and a border area, a fourth encapsulation material, a cell protection film, a third encapsulation material, a solar cell, a second encapsulation material, an insulating film, and a first encapsulation material are sequentially laminated in the encapsulation area of ​​the front transparent substrate, an edge sealing material is placed in the border area of ​​the front transparent substrate, and a flat frame is placed to cover both the edge sealing material and the first encapsulation material, and a single laminating process is performed to complete the frame-integrated solar module. Claim 20 A railway photovoltaic power generation device using a frame-integrated photovoltaic module, characterized in that, in claim 19, the front transparent substrate is made of a transparent polymer film or a glass substrate.

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