Solar cell module having support structure

Abstract

Disclosed is a solar cell module having a support structure, the solar cell module comprising: a front plate, a rear plate, and partition walls provided as a single body between the front and the rear plates to form partitioned spaces; a plurality of solar cells disposed in the spaces partitioned by the partition walls; and wire electrically connecting the plurality of solar cells.

Description

Solar cell module having a support structure

[0001] The present invention relates to a solar cell module having a support structure.

[0002] The present invention is derived from research conducted as part of the Ministry of Trade, Industry and Energy’s Core Technology Development for New and Renewable Energy (Power) (Project No.: 2410002845, Research Management Agency: Korea Institute of Energy Technology Evaluation and Planning, Research Project Name: Development of Process Technology for High-Durability, High-Efficiency Perovskite / Crystalline Silicon Tandem Photovoltaic Modules, Lead Agency: Hanwha Solutions Q CELLS Seoul Plant, Research Period: 2024.01.01 ~ 2024.10.31).

[0003] In addition, the present invention was derived from research conducted as part of the Ministry of Trade, Industry and Energy’s Energy Human Resource Development Project (Energy Special Project) (Project No.: 1415186428, Research Management Agency: Korea Institute of Energy Technology Evaluation and Planning, Research Project Name: Organic-Inorganic Hybrid Solar Cell Energy Innovation Research Center, Lead Agency: Korea University Industry-Academic Cooperation Foundation, Research Period: 2024.01.01 ~ 2024.12.31).

[0004] Meanwhile, the Korean government has no property interest in all aspects of the present invention.

[0005]

[0006] A device that converts the energy of photons generated from the sun into electrical energy through the photoelectric effect is called a solar cell, and an assembly of two or more solar cells connected in series or parallel to a single circuit is called a photovoltaic module.

[0007] The core material of a solar cell is the light-absorbing layer that exhibits the photoelectric effect, and such materials include silicon, CIGS (Copper Indium Gallium Selenide), CdTe (Cadmium Telluride), Group III-V element composites, photoactive organic materials, perovskites, and quantum dots.

[0008] Generally, a photovoltaic system is a system that converts light energy into electrical energy using solar cells, and is used as an independent power source for general households or industries, or as an auxiliary power source connected to a commercial AC power grid.

[0009] The above solar cell is manufactured by forming a pn junction of semiconductor materials and utilizes the photovoltaic effect, in which a small amount of current flows when receiving light. Most ordinary solar cells consist of large-area pn junction diodes, and when the electromotive force generated at the positive terminal of the pn junction diode is connected to an external circuit, it functions as a unit solar cell. Since the electromotive force of the solar cell constructed in this manner is small, multiple solar cells are connected to form a photovoltaic module with an appropriate electromotive force for use.

[0010] A grid-connected photovoltaic system commonly used as an exterior building system consists of a plurality of solar cell arrays that convert solar energy into electrical energy, and an inverter that converts the direct current (DC) power, which is the electrical energy converted by the solar cell arrays, into alternating current (AC) power and supplies it to the point of use.

[0011] In such solar power systems, the installation of solar panels to obtain solar energy is the most important element in the system's configuration, and these solar panels are installed either on a separately secured site or on the rooftop of a building.

[0012] Meanwhile, various solar cells applicable to buildings are being researched to improve their power efficiency, but there are difficulties in developing solar cells applicable to parts requiring transparency, such as windows.

[0013] In addition, to impart transparency to solar cells, the surface area of ​​the solar cell is adjusted (perforated type), transmittance is improved by thinning the light-absorbing layer (thin-film solar cells), the structure of the solar cell is modified (blind type, vertical type), or optical structures are used (luminescent solar concentrator, LSC).

[0014] Most of the manufacturing processes for this type of solar cell require complex additional steps. For example, processes such as perforation to form a light-transmitting area, fixing and connecting the solar cell structure, and fabricating and connecting optical structures are required.

[0015] Furthermore, when using brittle materials such as silicon, it is difficult to implement structures that require flexibility.

[0016] Meanwhile, conventional solar cell modules have the problem that the solar cells are encapsulated in a material, making it difficult to separate the module when replacing faulty solar cells or recycling waste modules, and also making it impossible to adjust the angle of the solar cells.

[0017]

[0018] The present invention relates to a solar cell module and aims to provide a solar cell module having a support structure that ensures the stability of the installation structure by forming an integrated support structure on the module, while simultaneously allowing the angle of the module to be adjusted to improve power generation efficiency according to solar irradiance, and maintaining long-term electrical characteristics by providing a dehumidification function or a moisture absorption structure inside.

[0019] In addition, the present invention includes an angle adjustment device capable of adjusting the installation angle of the module, thereby enabling the maintenance of optimal power generation conditions according to the season or sunlight conditions, and includes a moisture absorbent material or an air exchange structure in the module to reduce internal moisture, thereby preventing corrosion and insulation degradation problems.

[0020] Meanwhile, the technical problems to be solved by the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which the present invention belongs from the description below.

[0021]

[0022] An embodiment of the present invention is,

[0023] A transparent or translucent support structure comprising a front plate, a rear plate, and a partition wall integrally formed between the front plate and the rear plate to form a plurality of partitioned spaces;

[0024] A plurality of solar cells disposed in each space partitioned by the above partition; and

[0025] A wire including a plurality of solar cells electrically connecting the above-mentioned solar cells,

[0026] A solar cell module having a support structure can be provided.

[0027] In addition, embodiments of the present invention include,

[0028] The above solar cell comprises a plurality of solar cells, a substrate disposed below the solar cells, a transparent cover disposed above the solar cells, and an interconnect that electrically connects adjacent solar cells.

[0029] A solar cell module having a support structure can be provided.

[0030] In addition, embodiments of the present invention include,

[0031] A groove for receiving a wire is provided in at least one end or the other end of the above bulkhead that is exposed, so that wiring for electrically connecting a plurality of solar cells can be stably embedded inside the structure.

[0032] A solar cell module having a support structure can be provided.

[0033] In addition, embodiments of the present invention include,

[0034] A configuration comprising a first transparent wall on the outer side of the front plate and a second transparent wall on the outer side of the rear plate, respectively, and a moisture-absorbing structure surrounding the support structure disposed between the first and second transparent walls.

[0035] A solar cell module having a support structure can be provided.

[0036] In addition, embodiments of the present invention include,

[0037] The above-described moisture-absorbing structure has an internal receiving space, a contact surface in contact with the support structure, a plurality of moisture-absorbing holes formed on the contact surface, and a plurality of moisture absorbents disposed in the receiving space, thereby suppressing changes in humidity of the internal partition space and maintaining a stable internal environment.

[0038] A solar cell module having a support structure can be provided.

[0039] In addition, embodiments of the present invention include,

[0040] A sealant surrounding the moisture-absorbing structure is further formed between the first and second transparent walls, and a cover covering the sealant from the outside is provided, so as to block moisture penetration and gas diffusion from the outside.

[0041] A solar cell module having a support structure can be provided.

[0042] In addition, embodiments of the present invention include,

[0043] The above moisture-absorbing structure may further include an upper protrusion and a lower protrusion on one side of the main body, and may include a structure in which the end of the partition wall is inserted and coupled between the upper protrusion and the lower protrusion, and if necessary, a plurality of moisture-absorbing holes are formed on the outer surface of the protrusion, and the internal space of the moisture-absorbing holes communicates with the internal space of the main body so that a moisture absorbent can be continuously arranged.

[0044] A solar cell module having a support structure can be provided.

[0045] In addition, embodiments of the present invention include,

[0046] A driving wire further comprising a plurality of solar cells connected in a vertical direction, wherein the angle of the plurality of solar cells varies when an external force is applied in a vertical direction to the driving wire.

[0047] A solar cell module having a support structure can be provided.

[0048] In addition, embodiments of the present invention include,

[0049] The above driving wire includes a first wire located on the front of the solar cell, a second wire located on the rear of the solar cell, and a connecting part that connects the first and second wires and supports the bottom of the solar cell.

[0050] A method for adjusting the tilt angle of a solar cell in the form of a blind by causing the second wire to move downward when the first wire moves upward by an external force.

[0051] A solar cell module having a support structure can be provided.

[0052] In addition, embodiments of the present invention include,

[0053] The space partitioned by the above-mentioned partition is formed as a sealed structure, and an inert gas is filled inside to prevent corrosion or oxidation of the solar cell and electrode.

[0054] A solar cell module having a support structure can be provided.

[0055] In addition, embodiments of the present invention include,

[0056] The above solar cell is inserted into the partitioned space while surrounded by individual encapsulation materials, thereby simultaneously improving airtightness and environmental resistance.

[0057] A solar cell module having a support structure can be provided.

[0058] In addition, embodiments of the present invention include,

[0059] Two or three of a plurality of solar cells are connected in series to form a single solar cell unit, and a plurality of solar cell units are connected in parallel to provide stable power output.

[0060] A solar cell module having a support structure can be provided.

[0061] In addition, embodiments of the present invention include,

[0062] The front panel, rear panel, and partition are all integrally molded from polycarbonate material, which can improve impact resistance, heat resistance, and light transmittance.

[0063] A solar cell module having a support structure can be provided.

[0064] In addition, embodiments of the present invention include,

[0065] The above partition wall extends vertically between the front plate and the rear plate, and the solar cell is placed on the partition wall or attached to the front plate or the rear plate, thereby stably fixing the solar cell within the partition space.

[0066] A solar cell module having a support structure can be provided.

[0067]

[0068] According to an embodiment of the present invention, structural stability can be secured through a support structure in which a front plate, a rear plate, and a partition wall are formed integrally, and thermal deformation can be minimized by having the same coefficient of thermal expansion.

[0069] In addition, due to the independent compartmentalized spaces formed by the partitions, even if moisture permeates, diffusion into adjacent spaces is blocked, thereby preventing the deterioration of the entire module, and corrosion of the solar cells can be prevented by filling each compartmentalized space with an inert gas.

[0070] Furthermore, due to the structure in which solar cells are individually encapsulated and inserted into each compartment, partial replacement of faulty solar cells is possible, and recycling of waste modules is easy because the encapsulating material does not come into direct contact with the support structure.

[0071] In addition, the angle of the solar cells can be adjusted via a drive wire, allowing for the optimization of power generation efficiency in response to seasonal and time-of-day solar incidence angles, and enabling its use as a building-integrated photovoltaic power generation system by adjusting the amount of light transmittance as needed.

[0072] Furthermore, humidity inside the module can be controlled through a moisture-absorbing structure and a desiccant, allowing for the maintenance of stable electrical characteristics over a long period, and the module can be made lighter by utilizing the internal space created by the bulkhead structure.

[0073] Meanwhile, the effects obtainable from the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present invention belongs from the description below.

[0074]

[0075] FIG. 1 is a perspective view of a solar cell module having a support structure according to a first embodiment of the present invention.

[0076] FIGS. 2 and FIGS. 3 are cross-sectional views taken along line A-A' of FIG. 1 to explain a configuration in which the placement position of a solar cell is changed in a solar cell module having a support structure according to the first embodiment of the present invention.

[0077] FIG. 4 is a perspective front view of a solar cell module having a support structure according to a second embodiment of the present invention.

[0078] Figure 5 is a cross-sectional view taken along the line A-A' of Figure 4.

[0079] FIG. 6 is a perspective view illustrating a partition wall with a groove formed therein in a solar cell module having a support structure according to a second embodiment of the present invention.

[0080] FIG. 7 is an illustrative diagram for explaining a solar cell module having a support structure according to a second embodiment of the present invention.

[0081] FIG. 8 is a perspective view showing a moisture-absorbing structure in a solar cell module having a support structure according to a second embodiment of the present invention.

[0082] FIG. 9 is a perspective view showing a moisture-absorbing structure in a solar cell module having a support structure according to the third embodiment of the present invention.

[0083] FIG. 10 is a schematic diagram showing an angle adjustment structure of a solar cell in a solar cell module having a support structure according to the fourth embodiment of the present invention.

[0084] FIG. 11 is a schematic diagram showing an angle adjustment structure of a solar cell in a solar cell module having a support structure according to the fifth embodiment of the present invention.

[0085]

[0086] Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments below. These embodiments are provided to more fully explain the present invention to those with average knowledge in the art. Accordingly, the shapes of the elements in the drawings have been exaggerated to emphasize clearer explanations.

[0087] The configuration of the invention to clarify the solution to the problem to be solved by the present invention is described in detail with reference to the attached drawings based on preferred embodiments of the present invention. In assigning reference numbers to the components of the drawings, the same reference number is assigned to identical components even if they are located in different drawings, and it is noted in advance that components of other drawings may be cited if necessary when describing the drawings.

[0088] A solar cell module having a support structure according to the first embodiment of the present invention comprises a support structure (100) including a front plate (110), a rear plate (120), and a plurality of partitions (130) integrally formed between them, as shown in FIGS. 1 to 3. The front plate (110) and the rear plate (120) are arranged in a spaced-apart state parallel to each other, and the partitions (130) secure the overall rigidity of the support structure (100) by connecting the front plate (110) and the rear plate (120) in a vertical direction. The partitions (130) are repeatedly arranged at regular intervals between the front plate (110) and the rear plate (120) to form a plurality of partitioned spaces, and a solar cell (10) is arranged in each partitioned space.

[0089] It is preferable that the support structure (100) be manufactured by integrally molding the front plate (110), the rear plate (120), and the partition (130) from the same material. Since there is no bonding interface between the front plate (110), the rear plate (120), and the partition (130) in this integrally molded structure, deformation due to differences in thermal expansion coefficients does not occur, and stable structural strength can be maintained even against mechanical shock or vibration. The material of the support structure (100) may be a transparent or translucent plastic material such as polycarbonate, acrylic (PMMA), polyethylene terephthalate (PET), copolyester, or cyclic olefin polymer (COP). It may also be replaced with reinforced glass, composite resin, multilayer polymer structure, etc., and such changes in material are not limited in the present invention.

[0090] The partition wall (130) can be formed with a square cross-section, a circular cross-section, or a honeycomb cross-section structure, and the spacing and thickness of the partition wall (130) are set considering the light transmittance, mechanical rigidity, weight, etc. of the support structure (100). The partition wall (130) divides the space between the front plate (110) and the rear plate (120) at regular intervals to form a plurality of independent partition spaces, and each partition space has a structure that is completely separated from the outside. The size, depth, and width of the partition space can be modified according to the size of the solar cell (10), the required light transmittance, and the purpose of installation. A support surface or a step portion is formed on the inner surface of the partition wall (130) so that the solar cell (10) can be seated, and the position of the solar cell (10) is accurately fixed by this portion.

[0091] Referring to FIGS. 2 and 3, the solar cell (10) is positioned near the center between the front plate (110) and the rear plate (120), that is, at a position evenly spaced from the two plates. The solar cell (10) may be fixed by being seated on the inner surface or the step of the partition wall (130), and in some cases, may be attached to the inner surface of the front plate (110) or the rear plate (120). The placement of the solar cell (10) is determined by considering the incident path and reflection path of light, and by positioning the solar cell (10) in a central area spaced at a certain distance from the front plate (110) and the rear plate (120), light transmitted through the front plate (110) is reflected multiple times inside, thereby increasing the light utilization efficiency of the solar cell (10). In addition, since the partition wall (130) surrounds and supports the side of the solar cell (10), when an external load is applied, direct stress is not concentrated on the solar cell (10), and the load is distributed through the partition wall (130), thereby improving structural stability.

[0092] The solar cell (10) comprises a plurality of solar cell cells (11), and each solar cell (11) is configured in a stacked form between a lower substrate (14) and an upper transparent cover (12). Adjacent solar cell cells (11) are electrically connected by an interconnect (13), and the interconnect (13) can be formed from a material with excellent conductivity, such as lead-plated copper wire, silver-plated ribbon, or flexible metal wire. The solar cell (10) can be applied in various forms such as silicon-based, thin-film type (CIGS, CdTe), perovskite, and organic solar cells, and the cell size, arrangement spacing, light transmittance, electrode structure, etc., can be changed according to the purpose.

[0093] Each compartment space is structured to be completely enclosed by a partition (130), a front plate (110), and a rear plate (120), thereby being airtightly isolated from adjacent spaces. The interior of the compartment space may be formed as a sealed structure and may be maintained by injecting an inert gas inside. Nitrogen (N2), argon (Ar), helium (He), neon (Ne), etc., may be used as the inert gas, and the injection of such gas suppresses oxidation or moisture diffusion inside, thereby preventing corrosion of the electrode portion of the solar cell (10) or the metal interconnect (13). In addition, the internal gas pressure of the compartment space can be maintained at a constant level to prevent internal stress and condensation that occur during temperature changes.

[0094] During the manufacturing process, a sealant or a heat-fusion layer may be applied to the joint between the front plate (110), the rear plate (120), and the partition (130), thereby forming a sealed state in which the partition space is completely isolated from the outside (not shown). This sealed structure fundamentally prevents external moisture or contaminants from penetrating into the interior, thereby increasing the long-term durability and reliability of the solar cell (10). In addition, when an inert gas is injected while the interior is sealed, the internal environment is maintained stably, so that deterioration phenomena such as electrode discoloration, peeling of the adhesive layer, and yellowing of the encapsulation layer are minimized even under high temperature and high humidity conditions.

[0095] The front plate (110) and rear plate (120) of the support structure (100) may be flat, or, if necessary, may be formed into a curved shape or a polygonal structure. An anti-reflective (AR) coating or a UV blocking layer may be added to the front plate (110) to optimize light transmission, and a high thermal conductivity material may be laminated to the rear plate (120) for heat dissipation. Changes to these detailed configurations may be adjusted according to the application environment (e.g., building exterior materials, vehicle roofs, window-integrated modules), and the present invention is not limited thereto.

[0096] Ultimately, the solar cell module having the support structure of the first embodiment provides a structure in which a solar cell (10) is placed within an integrated support structure (100) composed of a front plate (110), a rear plate (120), and a partition (130), and the partition space formed by the partition (130) is independently sealed to protect the solar cell (10) from external shocks, moisture, and temperature changes. In addition, by injecting an inert gas into the partition space or applying a sealing structure, stable power generation performance can be maintained without deterioration of the internal electrode and encapsulation layer even during long-term use. This structure has the effect of simultaneously improving the environmental resistance, transparency, mechanical strength, maintainability, and optical efficiency of the module.

[0097]

[0098] Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. 4 to 8.

[0099] Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. 4 to 8.

[0100] As shown in FIGS. 4 to 8, a solar cell module having a support structure according to the second embodiment of the present invention is configured such that, while using the support structure (100) of the first embodiment as a basic frame, a transparent wall (200) is formed on the outer side of the front plate (110) and the rear plate (120), respectively, and the transparent wall (200) is composed of a first transparent wall (210) and a second transparent wall (220), and a moisture-absorbing structure (300) is installed between the first transparent wall (210) and the second transparent wall (220) to wrap around the support structure (100) in the outer direction. The second embodiment is characterized by a sealed structure that fundamentally blocks moisture and air penetration from the outside and stabilizes the internal environment for a long period while maintaining the structural stability and light transmittance of the first embodiment.

[0101] The first transparent wall (210) and the second transparent wall (220) are formed of a transparent material so that sunlight is transmitted from the outside to the internal solar cell (10) without loss. The two transparent walls (210, 220) are composed of a highly transparent resin or glass material with a light transmittance of 85% or more, and materials such as polycarbonate, acrylic (PMMA), polyethylene terephthalate (PET), tempered glass, or a composite transparent resin laminate thereof may be used. The first transparent wall (210) and the second transparent wall (220) are attached in close contact to the outer surfaces of the front plate (110) and the rear plate (120), respectively, and an anti-reflective (AR) coating, a UV-cut coating, a water-repellent or oil-repellent coating may be applied to the surface as needed.

[0102] The moisture-absorbing structure (300) is composed of a main body (310), a contact surface (311), a plurality of moisture-absorbing holes (320), and a moisture absorbent (330). The main body (310) is formed as a rod-shaped structure having an internal receiving space, and a plurality of moisture absorbents (330) are filled inside. The moisture absorbent (330) may be composed of a material with high moisture adsorption capacity, such as silica gel, zeolite, activated alumina, or calcium oxide, and continuously absorbs a small amount of moisture entering from the outside to maintain a constant relative humidity of the internal air.

[0103] The contact surface (311) is a surface formed on the inner side of the main body (310) and is structured to be in direct contact with the edge of the support structure (100). That is, the contact surface (311) is in close contact with the area where the end portion of the partition wall (130) connecting the front plate (110) and the rear plate (120) is located, thereby maintaining a state in which the moisture-absorbing structure (300) is continuously bonded to the outer surface of the support structure (100). At this time, the contact surface (311) is hermetically bonded to the edge of the support structure (100) by a sealant layer (40), so as to be sealed to prevent external air or moisture from penetrating into the internal partition space.

[0104] According to the configuration in which the contact surface (311) is in close contact with the edge of the support structure (100), the path for drawing the wire (30) outward is restricted, so a groove (135) for receiving the wire may be formed in the partition wall (130). The groove (135) is a groove structure having a width and depth corresponding to the diameter of the wire (30) and is formed longitudinally along the end or side of the partition wall (130). The wire (30) is placed in a state inserted into the groove (135) and is sealed by a sealant or a filling resin. According to this configuration, the wire (30) is safely drawn out from the inside without being exposed to the outside, and the part through which the wire (30) passes is also maintained in a completely sealed state. The shape of the groove (135) can be designed in various ways, such as a semicircle, a square, or a V-shape, and is selected considering the adhesion between the sheath material of the wire (30) and the material of the groove (135). Additionally, the wire (30) may be composed of a conductive metal wire, and may be made of materials such as copper, silver-plated copper, or aluminum, and the outer sheath may be formed of an insulating coating such as polyolefin, silicone, or fluoropolymer.

[0105] The moisture absorption holes (320) are configured to be selectively formed only on the contact surface (311). That is, the moisture absorption holes (320) are formed along the contact surface (311), which is the side of the support structure (100), i.e., the surface in contact with the internal partition space, and are not formed on the outer surface. Through the moisture absorption holes (320), residual moisture or fine gas inside the partition space comes into contact with the absorbent (330) filled inside the main body (310) and is adsorbed, thereby increasing the internal humidity control efficiency. The moisture absorption holes (320) may have a circular, elliptical, or elongated cross-section and are generally formed with a diameter in the range of 0.3 mm to 2.0 mm. The moisture absorption holes (320) may be arranged at regular intervals along the length direction of the main body (310), and in some embodiments, may be arranged in a multi-row structure. Additionally, a microporous coating layer may be formed on the inner wall of the moisture absorption hole (320), and the entrance may be covered with a fine mesh or a moisture-permeable film to prevent the entry of foreign substances.

[0106] As illustrated in FIG. 5, the main body (310) is continuously arranged along the outer circumference between the first transparent wall (210) and the second transparent wall (220) to wrap the outer edges of the front plate (110) and the rear plate (120). A sealant layer (40) is applied to the outer surface of the main body (310) to adhere to the inner surface of the first transparent wall (210) and the second transparent wall (220), and an outer cover (50) is arranged on the outer side to reinforce the sealing performance. The sealant layer (40) may be formed from polyisobutylene (PIB), silicone resin, or epoxy resin having adhesiveness and weather resistance, and the outer cover (50) may be formed from a thermoplastic polymer film or a metal foil material. This triple structure (main body (310), sealant layer (40), outer cover (50)) blocks moisture diffusion paths entering from the outside in multiple stages, thereby enabling the dry state of the internal compartment space to be maintained stably for a long period of time.

[0107] The partition wall (130) illustrated in FIG. 6 vertically connects the front plate (110) and the rear plate (120) to form a plurality of partitioned spaces. The end of the partition wall (130) is in close contact with the contact surface (311) and is sealed by a sealant layer (40) to ensure airtightness. Additionally, a groove (135) into which a wire (30) is inserted is formed at the end of the partition wall (130) to provide a path for the wire (30) to be pulled out, and the inside of the groove (135) is completely sealed with a sealant layer (40) or a filling resin so that the passage of the wire (30) is also completely blocked from the outside air and moisture.

[0108] FIG. 7 is an exemplary diagram illustrating the assembly state of the second embodiment, showing a configuration in which the outer circumference of a support structure (100) is surrounded by a moisture-absorbing structure (300), and a first transparent wall (210) and a second transparent wall (220) cover it from the outside. FIG. 8 is a perspective view illustrating the internal structure of the moisture-absorbing structure (300), showing that a moisture absorbent (330) is filled in the internal space of the main body (310), and a plurality of moisture-absorbing holes (320) are selectively formed at regular intervals only on the contact surface (311).

[0109] In summary, the solar cell module having the support structure of the second embodiment comprises, in addition to the support structure (100) composed of a front plate (110), a rear plate (120), and a partition wall (130), a first transparent wall (210) and a second transparent wall (220) having complete transparency, and a moisture-absorbing structure (300) composed of a main body (310), a contact surface (311), a moisture-absorbing hole (320), a moisture absorbent (330), a sealant layer (40), and an outer cover (50). The entire structure is kept airtight by the contact surface (311) being in close contact with the edge of the support structure (100), and the wire (30) is inserted and sealed within the groove (135) formed in the partition wall (130), thereby realizing complete sealing of the internal environment without the wiring being exposed to the outside. With this configuration, internal humidity and temperature conditions are maintained stably for a long period, corrosion of the solar cell (10) and interconnect (13), deterioration of the encapsulation layer, and condensation are suppressed, and a highly reliable sealed module structure suitable for building exterior walls or window-integrated photovoltaic systems (BIPV) is provided.

[0110]

[0111] Hereinafter, a third embodiment of the present invention will be described with reference to FIG. 9.

[0112] As shown in FIG. 9, the solar cell module having a support structure according to the third embodiment of the present invention is configured in a form in which the coupling structure between the main body (310) of the moisture-absorbing structure (300) and the support structure (100) is improved while maintaining the basic structure of the second embodiment. Accordingly, detailed descriptions of components identical to those in the first and second embodiments are omitted to avoid duplication.

[0113] The third embodiment is characterized by a structure in which the end of the partition wall (130) is mechanically and stably connected to the main body (310) of the moisture-absorbing structure (300). The main body (310) has an internal receiving space, and a contact surface (311) is formed on the inner side thereof to abut the edge of the support structure (100). The contact surface (311) is in close contact with the outer surface of the support structure (100) and is formed to be precisely joined to the edge where the end of the partition wall (130) is located. A sealant layer (40) is interposed between the contact surface (311) and the end of the partition wall (130), so that a hermetic seal is achieved simultaneously with the mechanical connection.

[0114] On the contact surface (311) of the main body (310), two protrusions, namely an upper protrusion (340) and a lower protrusion (350), are integrally formed and spaced apart from each other in the vertical direction. The two protrusions (340, 350) are formed in a shape that protrudes toward the contact surface (311), forming a structure that inserts and fixes the end of the partition wall (130) in the vertical direction. The protrusions (340, 350) are spaced apart by a certain distance (H), and the thickness (h) of the partition wall (130) is designed to be equal to or similar to this distance (H), so that the end of the partition wall (130) is stably inserted between the upper protrusion (340) and the lower protrusion (350). Accordingly, the partition wall (130) is supported on three sides by the lower surface of the upper protrusion (340), the upper surface of the lower protrusion (350), and the contact surface (311), and is physically and firmly fixed.

[0115] The shapes of the upper protrusion (340) and the lower protrusion (350) can be formed in various ways, such as straight, curved, or tapered, and it is preferable that they be integrally molded with the main body (310). Inside each of the two protrusions (340, 350), an internal space is formed, and this internal space is structured to be in communication with the internal receiving space of the main body (310). Accordingly, the absorbent (330) present inside the main body (310) can be continuously arranged into the interior of the protrusion, and the absorbent (330) can also be filled into the internal spaces of the upper protrusion (340) and the lower protrusion (350). With this configuration, moisture introduced through the moisture absorption holes (320) formed on the outer surface of the protrusions (340, 350) is dispersed and absorbed throughout the internal space of the main body (310), thereby maximizing moisture absorption efficiency.

[0116] That is, the main body (310), the upper protrusion (340), and the lower protrusion (350) are connected internally to form a single continuous moisture-absorbing space, and a moisture absorbent (330) can be placed throughout the entire interior. This interconnected structure acts to ensure that when moisture flows in through the moisture-absorbing holes (320) formed on the outer surfaces of the protrusions (340, 350), the moisture spreads throughout the interior of the main body (310) and is evenly absorbed.

[0117] Additionally, the moisture absorption holes (320) are formed on the outer surfaces of the upper protrusion (340) and the lower protrusion (350), that is, on the opposite side of the surface that contacts the partition wall (130). This configuration completely seals the contact area with the partition wall (130) to prevent outside air or moisture from directly penetrating, while allowing the internal absorbent (330) to selectively absorb fine moisture from the outside air through the opposite side. The moisture absorption holes (320) can be formed with a circular, elliptical, or elongated cross-section and are generally formed with a diameter of 0.3 mm to 2.0 mm. The moisture absorption holes (320) are formed at regular intervals along the outer surfaces of the upper protrusion (340) and the lower protrusion (350) and are in communication with the internal space of the main body (310).

[0118] The contact surface (311) is in close contact with the edge of the support structure (100), and the end of the partition wall (130) is fixed in a state where it is sandwiched between the protrusions (340, 350). At this time, a groove (135) for drawing out the wire (30) to the outside may be formed in the lower part of the contact surface (311). The groove (135) has a width and depth corresponding to the outer diameter of the wire (30) and extends longitudinally along the end of the partition wall (130) or near the contact surface (311). After the wire (30) is inserted into the groove (135), it is completely sealed by a sealant layer (40) or a filling resin. According to this configuration, the wire (30) is safely drawn out without being exposed to the outside and while maintaining the airtightness of the internal environment. The cross-sectional shape of the groove (135) can be formed in various ways, such as a semicircle, a square, or a V-shape, and the gap between the wire (30) and the groove (135) is filled with a sealant layer (40) to form a completely sealed state.

[0119] Due to this structure, the end of the partition wall (130) is in close contact with the contact surface (311) of the main body (310) and is firmly fixed by being sandwiched between the upper protrusion (340) and the lower protrusion (350), and a sealant layer (40) is interposed between the contact surface (311) and the partition wall (130) to achieve airtight sealing. In addition, the moisture absorption holes (320) formed on the outer surfaces of the upper protrusion (340) and the lower protrusion (350) are connected to the interior of the main body (310) and the interior space of the protrusion, so that the moisture absorbent (330) filled inside can effectively absorb fine moisture flowing in from the outside.

[0120] As shown in FIG. 9, the end of the partition wall (130) is inserted and joined between the upper protrusion (340) and the lower protrusion (350), and a moisture absorption hole (320) is formed on the outer surface of the protrusion (340, 350), and the interior is in communication with the interior space of the main body (310) so that the moisture absorbent (330) is filled into the interior of the protrusion.

[0121] Accordingly, the solar cell module having the support structure of the third embodiment has an upper protrusion (340) and a lower protrusion (350) formed on the contact surface (311) of the main body (310) that multi-facetedly support the end of the partition wall (130), and the internal space of the protrusions (340, 350) is in communication with the internal space of the main body (310), and a moisture absorbent (330) is continuously arranged therein. In addition, external moisture is selectively introduced and adsorbed through the moisture absorption holes (320) formed on the outer surface of the protrusions (340, 350), and a wire (30) is inserted and sealed in the groove (135) of the partition wall (130) so that the wiring is not exposed to the outside.

[0122] According to this configuration, the third embodiment maintains the basic function of the moisture-absorbing structure (300) of the second embodiment, while maximizing humidity control ability through the internal communication structure of the upper and lower protrusions (340, 350) and the continuous arrangement of the moisture absorbent (330), and provides a highly reliable structure that simultaneously improves mechanical strength and airtight sealing by supporting the ends of the partition wall (130).

[0123]

[0124] Hereinafter, a fourth embodiment of the present invention will be described with reference to FIG. 10.

[0125] A solar cell module having a support structure according to the fourth embodiment of the present invention is characterized by additionally including a configuration that allows the tilt (angle) of the solar cell (10) to be adjusted by an external force while maintaining the basic structure of the first to third embodiments as shown in FIG. 10. Therefore, a detailed description of identical or overlapping configurations is omitted.

[0126] The support structure (100) is composed of a front plate (110), a rear plate (120), and a partition wall (130), and a plurality of partitioned spaces are formed. A plurality of solar cells (10) are arranged in each partitioned space, and each solar cell (10) is composed of a plurality of solar cell cells, an interconnector that electrically connects them, and an encapsulation layer.

[0127] The core of this embodiment is the configuration of a driving wire (60) for controlling the tilt of a plurality of solar cells (10). The driving wire (60) is connected to one end of each of the plurality of solar cells (10), for example, the lower end or one edge, and is arranged in a form that can be stretched upward. The driving wire (60) forms a structure that continuously connects the plurality of solar cells (10) in a vertical direction, and when an external force (F) is applied to the driving wire (60), one end of the connected solar cell (10) rises and the other end is relatively fixed, causing the tilt (θ) of each solar cell (10) to change.

[0128] At this time, the solar cell (10) is supported to have a predetermined range of rotation within the partition space, and the amount of angle change is determined according to the magnitude of the external force (F) or the tensile displacement. When a tensile force is applied to the drive wire (60), the lower part or connection point of each solar cell (10) is pulled upward, causing the solar cell (10) to tilt at a certain angle, and when the external force is released, it returns to its original position by its own weight or restoring elasticity.

[0129] The drive wire (60) may connect the entire module as a single control unit, or it may be divided into multiple sections for area-by-area control. The external force (F) may be generated by manual operation or controlled by a separate automatic drive device. For example, an electric actuator, a motor link system, or a mechanical tension control device may be optionally included as a drive unit connected to the drive wire (60) to apply the external force (F).

[0130] Meanwhile, the driving wire (60) can be connected to the end of the solar cell (10) from the outside of the support structure (100), and it is preferable that a pair be provided on both sides.

[0131] Additionally, one edge of the solar cell (10) can act as a center of rotation, and a pivot shaft may be added in response. The pivot shaft is configured to enable rotation relative to one end of the solar cell (10) and may be formed in the form of a metal pin, a hinge, or a shaft. This configuration helps the solar cell (10) rotate smoothly by the tensile force of the drive wire (60).

[0132] According to this driving structure, the solar cell (10) actively adjusts its angle according to changes in the sun's altitude and angle of incidence. For example, in the morning, an external force (F) is applied, causing one end of the solar cell (10) to rise and the solar cell (10) to tilt upward, and when the sun reaches near noon, the external force is relieved, and the solar cell (10) returns to an almost horizontal state. In this way, power generation efficiency is maximized in response to changes in the sun's position throughout the day.

[0133] In addition, the driving wire (60) mechanically connects a plurality of solar cells (10) to maintain a constant tension state, thereby ensuring that each solar cell (10) has a uniformly equal amount of angle change. Through this, the entire module forms a single continuous rotational surface, and integrated operation of the entire module becomes possible.

[0134] Ultimately, the solar cell module having the support structure of the fourth embodiment comprises a support structure (100) composed of a front plate (110), a rear plate (120), and a partition (130), and a driving wire (60) connected to a plurality of solar cells (10), and is characterized by a structure in which one end of each solar cell (10) rises and the other end is relatively fixed so that the angle is variable as an external force (F) is applied to the driving wire (60).

[0135] This configuration allows the angle of light incidence to be adjusted solely by wire tensioning, resulting in a simple structure and easy maintenance. Furthermore, by adding a pivot shaft and a drive unit (not shown), it can be expanded into an intelligent solar tracking module capable of automatic control, providing a high-efficiency solar cell module capable of maintaining optimal power generation efficiency in response to external environmental changes (solar altitude, solar irradiance, season, etc.).

[0136]

[0137] Hereinafter, a fifth embodiment of the present invention will be described with reference to FIG. 11.

[0138] A solar cell module having a support structure according to the fifth embodiment of the present invention is based on the same basic structure as the fourth embodiment as shown in FIG. 11, but is characterized by a so-called blinder-type driving structure in which the angle of the solar cell (10) is varied by driving wires (70) arranged on the front and rear of the solar cell (10). Accordingly, redundant descriptions of configurations already described in the first to third embodiments are omitted.

[0139] The support structure (100) is composed of a front plate (110), a rear plate (120), and a partition wall (130), and a plurality of partitioned spaces are formed inside, and a solar cell (10) is disposed in each partitioned space. The solar cell (10) is composed of a plurality of solar cell cells and an interconnect that electrically connects adjacent cells, and is formed in a sealed form between an upper transparent cover and a lower substrate layer.

[0140] The most significant feature of the fifth embodiment is the arrangement and operation method of the driving wire (70) for controlling the angle of the solar cell (10). The driving wire (70) is arranged along the front and rear sides of the solar cell (10), respectively, and supports the solar cell (10) by connecting the upper and lower ends of the solar cell (10) to each other so that the solar cell (10) can change its angle within a certain rotational range. The driving wire (70) includes a first wire (71) arranged along the front side of the solar cell (10), a second wire (72) arranged along the rear side, and a connecting part (73) that supports the lower end of the solar cell (10) while connecting the two wires to each other. The first wire (71) and the second wire (72) are arranged parallel to each other and are installed under tension while maintaining a constant distance along the upper / lower or front / back direction of the solar cell (10). The connecting part (73) connects the first wire (71) and the second wire (72) across the lower part of the solar cell (10), thereby supporting the solar cell (10) so that it can rotate while stably suspended within a frame structure.

[0141] This structure operates similarly to a blind that covers a window. The solar cell (10) acts like a slat of the blind, and its tilt is adjusted according to changes in the tension state of the first wire (71) and the second wire (72). When an external force (F1) is applied to the first wire (71) in an upward direction, the wire located at the front is pulled upward, causing the front part of the solar cell (10) to tilt upward. On the other hand, an external force (F2) is applied to the second wire (72) in the opposite direction, that is, downward, causing the rear part of the solar cell (10) to be pulled downward, thereby performing rotational movement overall.

[0142] At this time, the external force (F1) and the external force (F2) act in opposite directions, maintaining balance with respect to the center of rotation of the solar cell (10). That is, when the first wire (71) is tensioned upward, the second wire (72) is tensioned downward, helping the solar cell (10) rotate while stably maintaining its tilt angle. Due to this bidirectional tension structure, the solar cell (10) can freely control its angle simply by adjusting the ratio of the external forces (F1, F2).

[0143] For example, when the external force (F1) increases, the front part of the solar cell (10) opens upward and the solar cell (10) forms an upward tilted state, and conversely, when the external force (F2) increases, the rear part of the solar cell (10) is pulled downward and rotates in a closing direction. Therefore, the opening and closing angle of the solar cell (10) changes according to the degree of tension of the external force, just like a blind slat, and as a result, the amount of sunlight incident can be actively controlled.

[0144] In addition, the drive wire (70) is continuously connected to a plurality of solar cells (10), so that a plurality of solar cells (10) can rotate at the same angle simultaneously with a single tensioning motion. Since the entire module operates as an integrated blind structure, the angle of incidence of the entire solar cell surface can be adjusted with a single drive, and efficient control is possible without separate mechanical links or individual drive devices.

[0145] At this time, the rotation center of the solar cell (10) may be formed near the edge of the connecting part (73) or the partition (130), and the solar cell (10) may be designed to have a rotation range of ± 30° to 90°. The external force (F1, F2) may be applied by an electric actuator, a cable pulley system, or a manual operating mechanism, and may be implemented in a form that is automatically controlled in conjunction with a light sensor or a control module as needed.

[0146] Accordingly, the solar cell module having the support structure of the fifth embodiment is composed of a support structure (100) consisting of a front plate (110), a rear plate (120), and a partition (130), and a driving wire (70) arranged on the front and rear surfaces of the solar cell (10), wherein the driving wire (70) includes a first wire (71), a second wire (72), and a connecting part (73) connecting them. An external force (F1) in the upward direction is applied to the first wire (71), and an external force (F2) in the downward direction is applied to the second wire (72), and the angle of the solar cell (10) is freely adjusted as these two tensile forces are balanced or fluctuate.

[0147] With this configuration, the solar cell (10) rotates like the opening and closing motion of a blind in response to the action of external forces (F1, F2), thereby optimizing power generation efficiency according to the angle of incidence and illuminance of sunlight. Additionally, the same structure can be applied to multiple solar cells (10), so that the entire module operates as a single flexible light control system, and is implemented as a blind-type solar cell module capable of simultaneously performing power generation and solar radiation control functions when applied to building exterior walls or window-integrated photovoltaic systems (BIPV).

[0148]

[0149] The above detailed description is illustrative of the present invention. Furthermore, the foregoing describes preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications, and environments. That is, modifications or alterations are possible within the scope of the concept of the invention disclosed herein, the scope equivalent to the disclosed content, and / or the scope of the art or knowledge. The described embodiments describe the best state for implementing the technical concept of the present invention, and various modifications required for specific fields of application and uses of the present invention are possible. Accordingly, the above detailed description of the invention is not intended to limit the present invention to the disclosed embodiments. Additionally, the appended claims should be interpreted as including other embodiments.

[0150]

[0151] [Explanation of the symbol]

[0152] 10 : Solar cell

[0153] 11 : Solar cell

[0154] 12 : Transparent cover

[0155] 13 : Interconnector

[0156] 14 : Substrate

[0157] 30 : Wire

[0158] 40 : Sealant

[0159] 50 : Cover

[0160] 60: Driving wire

[0161] 70: Driving wire

[0162] 71: 1st wire

[0163] 72: 2nd wire

[0164] 73 : Connection part

[0165] 100 : Support structure

[0166] 110 : Front panel

[0167] 120 : Back panel

[0168] 130 : Bulkhead

[0169] 135 : Home

[0170] 200: Transparent wall

[0171] 210 : 1st transparent wall

[0172] 220 : 2nd transparent wall

[0173] 300 : Hygroscopic structure

[0174] 310 : Main body

[0175] 311 : Contact surface

[0176] 320 : Moisture absorption hole

[0177] 330 : Desiccant

[0178] 340: Upper protrusion

[0179] 350: Lower protrusion

Claims

1. A transparent or translucent support structure comprising a front plate, a rear plate, and a partition wall integrally formed between the front plate and the rear plate to form a plurality of partitioned spaces; A plurality of solar cells disposed in each space partitioned by the above partition; and A wire including a plurality of solar cells electrically connecting the above-mentioned solar cells, Solar cell module having a support structure.

2. In Paragraph 1, The above solar cell is, Multiple solar cells; A substrate at the bottom of the above solar cell; A transparent cover on the upper part of the above solar cell; and Includes interconnects that electrically connect adjacent solar cells, Solar cell module having a support structure.

3. In Paragraph 1, The above bulkhead has a groove for receiving the wire in at least one of the exposed end and the other end. Solar cell module having a support structure.

4. In Paragraph 1, A first transparent wall on the outer side of the above-mentioned front panel; A second transparent wall on the outer side of the above rear plate; and A structure further comprising a moisture-absorbing structure disposed between the first and second transparent walls and surrounding the support structure. Solar cell module having a support structure.

5. In Paragraph 4, The above moisture-absorbing structure is, A main body having an internal receiving space and a contact surface that contacts the support structure; A plurality of moisture absorbents formed on the above contact surface; and A plurality of moisture absorbents accommodated in the receiving space of the above-mentioned main body, Solar cell module having a support structure.

6. In Paragraph 5, A sealant disposed between the first and second transparent walls and surrounding the moisture-absorbing structure; and A solar cell module having a support structure disposed between the first and second transparent walls and further including a cover surrounding the sealant.

7. In Paragraph 5, The above moisture-absorbing structure is, It further includes an upper protrusion and a lower protrusion, respectively formed on one side of the main body, and The above bulkhead is coupled to be fitted between the upper protrusion and the lower protrusion, Solar cell module having a support structure.

8. In Paragraph 1, It further includes a driving wire connecting the plurality of solar cells in a vertical direction, and When an external force is transmitted perpendicularly to the driving wire, the angle of the plurality of solar cells is varied. Solar cell module having a support structure.

9. In Paragraph 8, The above driving wire is A first wire located on the front of the above solar cell, A second wire located on the rear side of the above solar cell, A connecting portion that connects the first and second wires and supports the lower end of the solar cell, Solar cell module having a support structure.

10. In Paragraph 9, When the first wire is moved upward by an external force, The second wire is moved downward by an external force, Solar cell module having a support structure.

11. In Paragraph 1, The space partitioned by the above bulkhead is a closed space, and Inert gas is filled inside the above-mentioned sealed space, Solar cell module having a support structure.

12. In Paragraph 1, The above solar cell is inserted into the partitioned space while surrounded by individual encapsulating materials, Solar cell module having a support structure.

13. In Paragraph 1, Two or three of the above plurality of solar cells are connected in series to form a single solar cell unit, and Multiple solar cell units are connected in parallel, Solar cell module having a support structure.

14. In Paragraph 1, The above front panel, rear panel, and bulkhead are integrally molded from polycarbonate, Solar cell module having a support structure.

15. In Paragraph 1, The above bulkhead extends vertically between the front plate and the rear plate, and The above solar cell is, It is positioned and placed on the above bulkhead, or Attached to and arranged on the front plate or the rear plate, Solar cell module having a support structure.

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