Solar cell module

Abstract

The present invention relates to a solar cell module. The solar cell module includes a laminate having solar cells and module frames for supporting the laminate, each module frame comprising: a base frame spaced apart from the laminate; a first support frame extending from the base frame and disposed to surround the laminate; a second support frame extending from the base frame and disposed to surround the first support frame; and a restraining unit disposed in the first and second support frames and for restricting the relative movement of the first and second support frames.

Description

solar cell module

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

[0002] A solar cell module may include a laminate containing a solar cell that converts light energy into electrical energy by the photoelectric effect, and a module frame that supports the laminate.

[0003] Recently, efforts to research and develop materials for module frames are becoming increasingly concrete in order to address the characteristics of the frame, which accounts for a significant portion of the weight within solar modules, and to reduce the cost of solar modules.

[0004] In the case of steel module frames, they are generally made of two layers of ternary galvanized steel and a hemming method is applied at the point where the two layers meet, and as a result, the stiffness against torsional loads is very low.

[0005] The present invention aims to provide a solar cell module capable of strengthening rigidity against external loads.

[0006] A solar cell module according to the present invention comprises: a laminate having a solar cell; and a module frame supporting the laminate; wherein the module frame comprises: a base frame spaced apart from the laminate; a first support frame extending from the base frame and arranged to surround the laminate; a second support frame extending from the base frame and arranged to surround the first support frame; and a restraining member provided on the first support frame and the second support frame and restricting relative movement between the first support frame and the second support frame.

[0007] The above module frame may include steel material.

[0008] The base frame may include: a bottom frame spaced apart along a first direction from the rear of the laminate; a first extension frame extending from the bottom frame toward the rear of the laminate; and a second extension frame extending from the bottom frame toward the rear of the laminate and positioned facing the first extension frame.

[0009] The first extension frame and the second extension frame can be arranged parallel to the first direction.

[0010] The first extension frame and the second extension frame may be spaced apart along a second direction that intersects the first direction.

[0011] The first support frame may include: a rear wall portion connected to the first extension frame and positioned to face the rear of the laminate; a first side wall portion connected to the rear wall portion and positioned to face the side of the laminate; and a first front wall portion connected to the first side wall portion and positioned to face the front of the laminate; and the second support frame may include: a second side wall portion connected to the second extension frame and positioned to face the first side wall portion; and a second front wall portion connected to the second side wall portion and positioned to face the first front wall portion.

[0012] A bent portion extending toward the front of the laminate may be formed at the end of the first front wall portion.

[0013] The above restraint member may include: a first restraint member disposed between the rear wall portion and the first side wall portion and having a first bending portion; and a second restraint member disposed between the second extension frame and the second side wall portion and having a second bending portion that surrounds the first bending portion.

[0014] The first bending part and the second bending part may be arranged to face the first direction.

[0015] The ratio of the gap between the rear wall and the second bending part to the gap between the rear wall and the floor frame may be 0.015 or more and 0.13 or less.

[0016] The first bending part and the second bending part may be positioned on the outside of the base frame.

[0017] The distance from the first extension frame to the first bending part may be greater than the distance from the first extension frame to the second extension frame.

[0018] The second restraining member may further include a third bending member positioned between the second bending part and the second extension frame, facing the second bending part along a second direction that intersects the first direction.

[0019] The second bending part may be positioned to face the first direction, and the third bending part may be positioned to face the opposite direction of the first direction.

[0020] The first bending part and the second bending part may be positioned on the inner side of the base frame.

[0021] The distance from the first extension frame to the first bending part may be smaller than the distance from the first extension frame to the second extension frame.

[0022] The second restraining member may further include a third bending member positioned between the second bending part and the second extension frame, facing the second bending part along a second direction that intersects the first direction.

[0023] The second bending part is positioned to face the first direction, and the third bending part may be positioned at an angle with respect to the first direction and the second direction.

[0024] The above restraint portion may further include a third restraint member that extends from the second front wall portion and is positioned to wrap around the end of the first front wall portion.

[0025] The above third restraining member may be in contact with the front surface of the laminate.

[0026] According to the present invention, a more stable support force can be secured by distributing the load of the laminate through mutually overlapping first support frames and second support frames.

[0027] According to the present invention, deformation of the module frame due to external load can be prevented by limiting the relative movement between the first support frame and the second support frame by means of a restraining member.

[0028] FIG. 1 is a perspective view schematically showing the configuration of a solar cell module according to one embodiment of the present invention.

[0029] FIG. 2 is a cross-sectional view schematically showing the configuration of a solar cell module according to one embodiment of the present invention.

[0030] FIG. 3 is an enlarged view schematically showing the configuration of a restraining member according to one embodiment of the present invention.

[0031] FIGS. 4 and 5 are drawings showing the state in which an external load is input to a solar cell module according to one embodiment of the present invention.

[0032] FIG. 6 is a cross-sectional view schematically showing the configuration of a solar cell module according to another embodiment of the present invention.

[0033] FIG. 7 is an enlarged view schematically showing the configuration of a restraining part according to another embodiment of the present invention.

[0034] Hereinafter, embodiments of a photovoltaic interconnect according to the present invention and a solar cell module equipped with the same will be described with reference to the attached drawings.

[0035] In this process, the thickness of lines or the size of components depicted in the drawings may be exaggerated for the sake of clarity and convenience of explanation. Furthermore, the terms described below are defined in consideration of their functions within the present invention, and these definitions may vary depending on the intent or convention of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0036] Furthermore, in this specification, when a part is described as being "connected (or joined)" to another part, this includes not only cases where they are "directly connected (or joined)" but also cases where they are "indirectly connected (or joined)" with other members interposed between them. In this specification, when a part is described as "including (or having) a certain component," this means that, unless specifically stated otherwise, it does not exclude other components but may additionally "include (or have)" other components.

[0037] Furthermore, throughout this specification, the same reference numerals may refer to the same components. Even if the same or similar reference numerals are not mentioned or described in a specific drawing, they may be described based on other drawings. Additionally, even if a part is not indicated by a reference numeral in a specific drawing, that part may be described based on other drawings. Furthermore, the number, shape, size, and relative differences in size of the detailed components included in the drawings of this application are set for ease of understanding and do not limit the embodiments, and may be implemented in various forms.

[0038] FIG. 1 is a perspective view schematically showing the configuration of a solar cell module according to one embodiment of the present invention, and FIG. 2 is a cross-sectional view schematically showing the configuration of a solar cell module according to one embodiment of the present invention.

[0039] Referring to FIG. 1 and FIG. 2, the solar cell module according to the present embodiment may include a laminate (10) and a module frame (20).

[0040] The laminate (10) may include a plurality of solar cells (11) that produce power by converting light energy incident from the outside into electrical energy through the photoelectric effect. The plurality of solar cells (11) may be arranged to form a square or rectangular grid pattern. The solar cells (11) may be single-sided light-receiving solar cells, or alternatively, double-sided light-receiving solar cells. The plurality of solar cells (11) may be connected in series or in parallel by a busbar, etc.

[0041] The laminate (10) may include a pair of protective substrates that protect a plurality of solar cells (11). The pair of protective substrates may be positioned to face each other on both sides of the solar cells (11) with the plurality of solar cells (11) in between. The pair of protective substrates may be made of, for example, a glass material.

[0042] In this embodiment, the laminate (10) may have the shape of a rectangular prism having a front surface (10a) and a rear surface (10b) opposite each other, and a side surface (10c) positioned between the front surface (10a) and the rear surface (10b). The front surface (10a) and the rear surface (10b) of the laminate (10) may be spaced apart along a first direction. The rear surface (10b) of the laminate (10) may be positioned to face the first direction, and the front surface (10a) may be positioned to face the opposite direction of the first direction. If the solar cell (11) is a single-sided light-receiving solar cell, the front surface (10a) of the laminate (10) may be exemplified as the light-receiving surface of the solar cell (11). The side surface of the laminate (10) may be positioned perpendicular to a second direction that intersects the first direction. Based on FIGS. 1 and 2, the first direction refers to a direction parallel to the Z-axis, and the second direction may refer to any direction parallel to the XY plane.

[0043] The module frame (20) forms the overall framework of the solar cell module and can support the laminate (10).

[0044] A plurality of module frames (20) may be provided. A plurality of module frames (20) may be arranged to surround the outer circumference of the laminate (10). For example, a plurality of module frames (20) may be arranged to form a rectangular frame shape with a hollow formed in the center. The laminate (10) may be placed inside the hollow formed in the center of the plurality of module frames (20). Adjacent module frames (20) may be directly connected by welding, bolting, etc., or may be interconnected by separate brackets.

[0045] The module frame (20) may include a steel material. For example, the module frame (200) may be a plated steel sheet in which an alloy with excellent corrosion resistance, such as a developed Zn-Al-Mg-based ternary alloy, is plated on the surface of a steel plate. The module frame (20) may be formed by bending the plated steel sheet. For example, the module frame (20) may be formed by a method of bending the plated steel sheet through a forming process such as roll forming.

[0046] The module frame (20) according to the present embodiment may include a base frame (100), a first support frame (200), a second support frame (300), and a restraining part (400).

[0047] In the following, a module frame (20) whose length direction is arranged parallel to the Y-axis among a plurality of module frames (20) will be described as an example. Accordingly, the second direction described below may be exemplified as a direction parallel to the X-axis with respect to FIG. 2 among any direction parallel to the XY plane, and a direction from the center of the laminate (10) toward the side (10c) of the laminate (10). However, the second direction is not limited thereto, and when the module frame (20) is arranged parallel to the X-axis, it may be a direction parallel to the Y-axis and a direction from the center of the laminate (10) toward the side (10c) of the laminate (10).

[0048] The base frame (100) forms one side of the module frame (20) and can support the first support frame (200), the second support frame (300), and the restraint part (400) in its entirety.

[0049] The base frame (100) according to the present embodiment may include a bottom frame (110), a first extension frame (120), and a second extension frame (130).

[0050] The floor frame (110) can be spaced apart along the first direction from the rear surface (10b) of the laminate (10).

[0051] The floor frame (110) may include a central frame (111) positioned parallel to the rear surface (10b) of the laminate (10), and a first end (112) and a second end (113) positioned on both sides of the central frame (111).

[0052] The first end (112) and the second end (113) each extend from both ends of the central frame (111) and can be bent at a predetermined angle. The first end (112) and the second end (113) can be bent in directions opposite to each other from both ends of the central frame (111). The first end (112) and the second end (113) can be positioned between the laminate (10) and the central frame (111). The first end (112) and the second end (113) can be positioned spaced apart by a predetermined distance along a second direction. In FIG. 2, the first end (112) and the second end (113) are shown as being bent 180° from both ends of the central frame (111), but the first end (112) and the second end (113) are not limited to this and can be bent at various angles.

[0053] The first extension frame (120) extends from the bottom frame (110) toward the rear surface (10b) of the laminate (10) and can form the inner circumferential exterior of the base frame (100).

[0054] The first extension frame (120) according to the present embodiment may extend from the first end (112) of the floor frame (110) toward the rear surface (10b) of the laminate (10). The first extension frame (120) may be arranged parallel to the first direction. For example, the first extension frame (120) may extend from the first end (112) of the floor frame (110) toward the direction opposite to the first direction. The end of the first extension frame (120) may be arranged at a predetermined distance from the rear surface (10b) of the laminate (10) along the first direction.

[0055] The second extension frame (130) extends from the bottom frame (110) toward the rear (10b) of the laminate (10) and can form the outer periphery of the base frame (100). The second extension frame (130) can be positioned facing the first extension frame (120).

[0056] The second extension frame (130) according to the present embodiment may extend from the second end (113) of the floor frame (110) toward the rear surface (10b) of the laminate (10). The second extension frame (130) may be arranged parallel to the first direction. For example, the second extension frame (130) may extend from the second end (113) of the floor frame (110) in the opposite direction to the first direction. The end of the second extension frame (130) may be arranged at a predetermined distance from the rear surface (10b) of the laminate (10) along the first direction.

[0057] The first extension frame (120) and the second extension frame (130) may be arranged at a predetermined distance apart along the second direction. Accordingly, an empty space may be formed between the first extension frame (120) and the second extension frame (130). The second extension frame (130) may be arranged relatively closer to the edge side of the laminate (10) than the first extension frame (120). For example, the first extension frame (120) and the second extension frame (130) may be arranged sequentially along the second direction.

[0058] The first support frame (200) extends from the base frame (100) and can be positioned to wrap around the laminate (10). The first support frame (200) can provide a space to accommodate the edge area of ​​the laminate (10) and function as a configuration that primarily supports the laminate (10) with respect to the base frame (100).

[0059] The first support frame (200) according to the present embodiment may include a rear wall portion (210), a first side wall portion (220), and a first front wall portion (230).

[0060] The rear wall portion (210) is connected to the first extension frame (120) and can be positioned to face the rear (10b) of the laminate (10).

[0061] The rear wall portion (210) according to the present embodiment may be extended along a second direction from the first extension frame (120). The rear wall portion (210) may be bent and extended from the end of the first extension frame (120). The rear wall portion (210) may be arranged parallel to the central frame (111) and the rear surface (10b) of the laminate (10). Both sides of the rear wall portion (210) may be arranged to face the central frame (111) and the rear surface (10b) of the laminate (10), respectively. One side of the rear wall portion (210) may be arranged at a predetermined distance along a first direction from the rear surface (10b) of the laminate (10).

[0062] The first side wall (220) is connected to the rear wall (210) and can be positioned to face the side (10c) of the laminate (10).

[0063] The first side wall (220) according to the present embodiment may be arranged parallel to the first direction. The first side wall (220) may be arranged parallel to the side (10c) of the laminate (10). The first side wall (220) may be arranged spaced apart from the side (10c) of the laminate (10) along the second direction at a predetermined distance. One end of the first side wall (220) may be connected to the rear wall (210) by a restraining member (400) described later. The height of the other end of the first side wall (220) may be higher than the height of the front (10a) of the laminate (10).

[0064] The first front wall (230) is connected to the first side wall (220) and can be positioned to face the front (10a) of the laminate (10).

[0065] The first front wall portion (230) according to the present embodiment may be extended along the opposite direction of the second direction from the other end of the first side wall portion (220). The first front wall portion (230) may be extended by bending from the other end of the first side wall portion (220). The first front wall portion (230) may be arranged parallel to the front surface (10a) of the laminate (10). The first front wall portion (230) may be arranged at a predetermined distance from the front surface (10a) of the laminate (10) along the opposite direction of the first direction.

[0066] Accordingly, the first support frame (200) according to the present embodiment can be formed to have a cross-section approximately in the shape of a "C".

[0067] An adhesive (30) may be placed between the laminate (10) and the first support frame (200).

[0068] The adhesive (30) may be, for example, a silicone adhesive. When cured, the silicone adhesive does not harden like cement, but has elasticity like rubber and excellent water repellency. Therefore, the adhesive (30) can prevent moisture and foreign substances from penetrating between the laminate (10) and the first support frame (200), and can prevent corrosion of the solar cell module and the resulting decrease in durability.

[0069] The adhesive (30) according to the present embodiment may be placed between the rear wall (210) and the rear (10b) of the laminate (10), between the first side wall (220) and the side (10c) of the laminate (10), and between the first front wall (230) and the front (10a) of the laminate (10). However, the adhesive is not limited thereto, and it is also possible to place it in only one or two of the following: between the rear wall (210) and the rear (10b) of the laminate (10), between the first side wall (220) and the side (10c) of the laminate (10), and between the first front wall (230) and the front (10a) of the laminate (10).

[0070] The first support frame (200) according to the present embodiment may further include a bent portion (231).

[0071] The bend portion (231) is positioned at the end of the first front wall portion (230) and can be extended toward the front (10a) of the laminate (10). The bend portion (231) according to the present embodiment can be positioned at a predetermined angle inclined from the end of the first front wall portion (230) toward the front (10a) of the laminate (10). Accordingly, the bend portion (231) can prevent the adhesive (30) positioned between the laminate (10) and the first support frame (200) from detaching and more effectively suppress the flow of the laminate (10) parallel to the first direction.

[0072] The second support frame (300) extends from the base frame (100) and can be positioned to surround the first support frame (200). The first support frame (200) can function as a configuration that distributes the load applied to the first support frame (200) due to the weight of the laminate (10) and secondarily supports the laminate (10) with respect to the base frame (100).

[0073] The second support frame (300) according to the present embodiment may include a second side wall (310) and a second front wall (320).

[0074] The second side wall (310) is connected to the second extension frame (130) and can be positioned to face the first side wall (220).

[0075] The second side wall (310) according to the present embodiment may be arranged parallel to the first direction. The second side wall (310) may be arranged parallel to the side (10c) of the laminate (10) and the first side wall (220). The second side wall (310) may be arranged to face the side (10c) of the laminate (10) with the first side wall (220) in between. The second side wall (310) may be in contact with the first side wall (220). Accordingly, the second side wall (310) may distribute the load transmitted to the first side wall (220).

[0076] One end of the second side wall (310) can be connected to the second extension frame (130) by the restraining part (400) described later. The height of the other end of the second side wall (310) may be higher than the height of the front surface (10a) of the laminate (10).

[0077] The second front wall (320) is connected to the second side wall (310) and can be positioned to face the first front wall (230).

[0078] The second front wall section (320) according to the present embodiment may be extended along the opposite direction of the second direction from the other end of the second side wall section (310). The second front wall section (320) may be bent and extended from the other end of the second side wall section (310). The second front wall section (320) may be arranged parallel to the front (10a) of the laminate (10) and the first front wall section (230). The second front wall section (320) may be arranged to face the front (10a) of the laminate (10) with the first front wall section (230) in between. The second front wall section (320) may be in contact with the first front wall section (230). Accordingly, the second front wall section (320) may distribute the load transmitted to the first front wall section (230).

[0079] The restraining member (400) is provided on the first support frame (200) and the second support frame (300) and can reinforce the rigidity of the module frame (20). More specifically, the restraining member (400) can function as a configuration that limits the relative movement of the first support frame (200) and the second support frame (300) due to external loads applied to the laminate (10), such as wind load.

[0080] FIG. 3 is an enlarged view schematically showing the configuration of a restraining member according to one embodiment of the present invention.

[0081] Referring to FIGS. 1 to 3, the restraining member (400) according to the present embodiment may include a first restraining member (410) and a second restraining member (420).

[0082] The first restraining member (410) can be placed between the rear wall portion (210) and the first side wall portion (220).

[0083] The first restraining member (410) according to the present embodiment may extend from the rear wall portion (210) toward one end of the first side wall portion (220). Both ends of the first restraining member (410) may be connected to the rear wall portion (210) and the first side wall portion (220), respectively. Accordingly, the rear wall portion (210) and the first side wall portion (220) may be interconnected by the first restraining member (410).

[0084] The first restraining member (410) may include a first bending portion (411). The first bending portion (411) may be positioned between the two ends of the first restraining member (410). The first bending portion (411) may be formed by bending the area between the two ends of the first restraining member (410) with a predetermined curvature. The first bending portion (411) may be positioned to face a first direction. That is, the first bending portion (411) may protrude toward the floor frame (110) from between the rear wall portion (210) and the first side wall portion (220).

[0085] The second restraining member (420) can be placed between the second extension frame (130) and the second side wall (310).

[0086] The second restraining member (420) according to the present embodiment may extend from the second extension frame (130) toward one end of the second side wall (310). Both ends of the second restraining member (420) may be connected to the second extension frame (130) and the second side wall (310), respectively. Accordingly, the second extension frame (130) and the second side wall (310) may be interconnected by the second restraining member (420).

[0087] The second restraining member (420) may include a second bending portion (421). The second bending portion (421) may be positioned between the two ends of the second restraining member (420). The second bending portion (421) may be formed by bending the area between the two ends of the second restraining member (420) with a predetermined curvature. The second bending portion (421) may be positioned to face a first direction. That is, the second bending portion (421) may protrude from the second extension frame (130) toward the floor frame (110) from between the second side wall portion (310).

[0088] The first bending part (411) can be inserted into the interior of the second bending part (421). The outer surface of the first bending part (411) can be in close contact with the inner surface of the second bending part (421). Accordingly, the second bending part (421) can restrict movement in a direction parallel to the second direction of the first bending part (411). The curvature of the second bending part (421) may be smaller than the curvature of the first bending part (411). Accordingly, the second bending part (421) can be easily inserted into the interior of the first bending part (411). The difference in curvature between the first bending part (411) and the second bending part (421) can be varied in design within a range where the first bending part (411) and the second bending part (421) can be in close contact with each other.

[0089] In this embodiment, the first bending part (411) and the second bending part (421) may be positioned on the outside of the base frame (100). More specifically, the distance (L2) from the first extension frame (120) to the first bending part (411) may be greater than the distance (L1) from the first extension frame (120) to the second extension frame (130). The distance (L2) from the first extension frame (120) to the first bending part (411) may refer to the distance in the second direction from the first extension frame (120) to the extension line of the central part of the first bending part (411) which is positioned facing the floor frame (110) along the first direction. The distance (L2) from the first extension frame (120) to the first bending part (411) may be the same as the distance from the first extension frame (120) to the second bending part (421). Accordingly, the module frame (200) according to the present embodiment can freely adjust the protrusion lengths of the first bending part (411) and the second bending part (421) without interference with the base frame (100).

[0090] The ratio (L4 / L3) of the gap (L3) between the rear wall (210) and the second bending part (421) to the gap (L3) between the rear wall (210) and the floor frame (110) may be 0.015 or greater and 0.13 or less. The gap (L3) between the rear wall (210) and the floor frame (110) may refer to the distance in the first direction from the extension line of the rear wall (210) to the floor frame (110). The gap (L4) between the rear wall (210) and the second bending part (421) may refer to the distance in the first direction from the extension line of the rear wall (210) to the center of the first bending part (411) which is positioned facing the floor frame (110) along the first direction.

[0091] If the ratio (L4 / L3) of the gap (L3) between the rear wall (210) and the second bending part (421) to the gap (L3) between the rear wall (210) and the floor frame (110) is less than 0.015, the bonding force between the first bending part (411) and the second bending part (421) may be weakened.

[0092] If the ratio (L4 / L3) of the gap (L4) between the rear wall (210) and the second bending part (421) to the gap (L3) between the rear wall (210) and the bottom frame (110) is greater than 0.13, the difficulty of processing the first bending part (411) and the second bending part (421) may increase.

[0093] The second restraining member (420) according to the present embodiment may further include a third bending part (422).

[0094] The third bending section (422) may be positioned between the second bending section (421) and the second extension frame (130). The third bending section (422) may be formed by bending the area between the second bending section (421) of the second restraining member (420) and the second extension frame (130) with a predetermined curvature. The third bending section (422) may be positioned to face the second bending section (421) along the second direction.

[0095] The third bending part (422) may be positioned to face a different direction from the second bending part (421). For example, the third bending part (422) may be positioned to face the opposite direction of the first direction. That is, the third bending part (422) may protrude from the second extension frame (130) toward the rear wall part (210). Accordingly, the third bending part (422) can more effectively restrict the movement of the first bending part (411) inserted inside the second bending part (421) in the second direction.

[0096] The curvature of the third bending part (422) may be the same as the curvature of the second bending part (421), or it may be formed differently from the curvature of the third bending part (422).

[0097] The restraining member (400) according to the present embodiment may further include a third restraining member (430).

[0098] The third restraining member (430) extends from the second front wall (320) and can be positioned to wrap around the end of the first front wall (230).

[0099] The third restraining member (430) according to the present embodiment may be bent at a predetermined curvature from the end of the second front wall portion (320). The third restraining member (430) may be formed by a bending process of the end of the second front wall portion (320). The third restraining member (430) may be arranged to surround the bent portion (231) formed at the end of the first front wall portion (230). That is, the bent portion (231) may be inserted into the interior of the third restraining member (430). The inner surface of the third restraining member (430) may be in close contact with the outer surface of the bent portion (231). Accordingly, the third restraining member (430) can restrict relative movement between the first support frame (200) and the second support frame (300) together with the first restraining member (410) and the second restraining member (420) described above by fixing the position of the bent portion (231).

[0100] The third restraining member (430) can be in contact with the front surface (10a) of the laminate (10). Accordingly, the third restraining member (430) can prevent the adhesive (30) located between the first front wall (230) and the front surface (10a) of the laminate (10) from detaching.

[0101] The operation of a solar cell module according to one embodiment of the present invention will be described below.

[0102] FIGS. 4 and 5 are drawings showing the state in which an external load is input to a solar cell module according to one embodiment of the present invention.

[0103] Referring to FIGS. 4 and 5, when a load is applied to the laminate (10) in the first direction or the opposite direction of the first direction due to environmental factors such as wind, rain, or snow, the central part of the laminate (10) bends in the first direction or the opposite direction of the first direction, and a torsional moment is generated at the end of the laminate (10).

[0104] Due to the deformation of the laminate (10) in this way, a load is applied to the first support frame (200) in a direction parallel to the first direction and the second direction.

[0105] In this case, the first bending part (411), the second bending part (421) facing along the first direction, and the second front wall part (320) surrounding the first front wall part (230) each restrict the movement of the first support frame (200) in the first direction and the opposite direction of the first direction, so that the first support frame (200) may not be moved in the first direction or the opposite direction of the first direction.

[0106] Additionally, as the first side wall (220), the second side wall (310) facing along the second direction, the first bending part (411), the second bending part (421), the third bending part (422) facing along the second direction, and the third restraining member (430) arranged to surround the bending part (231) each restrain the movement of the first support frame (200) in the second direction and the opposite direction of the second direction, the first support frame (200) may not be moved in the second direction or the opposite direction of the second direction.

[0107] Accordingly, the solar cell module according to the present embodiment can effectively prevent deformation of the module frame (20) even when snow load, wind load, etc. are applied to the laminate (10).

[0108] Hereinafter, a solar cell module according to another embodiment of the present invention will be described.

[0109] The solar cell module according to the present embodiment may be configured to differ only in the detailed configuration of the solar cell module and the module frame (20) according to one embodiment of the present invention.

[0110] Accordingly, in describing the solar cell module according to the present embodiment, only the detailed configuration of the module frame (20) that is not described in the solar cell module according to one embodiment of the present invention will be described.

[0111] For the remaining components of the solar cell module according to this embodiment, the description of the solar cell module according to one embodiment of the present invention may be applied as is.

[0112] FIG. 6 is a cross-sectional view schematically showing the configuration of a solar cell module according to another embodiment of the present invention, and FIG. 7 is an enlarged view schematically showing the configuration of a restraining part according to another embodiment of the present invention.

[0113] Referring to FIGS. 6 and 7, in this embodiment, the first bending part (411) and the second bending part (421) may be positioned inside the base frame (100). More specifically, the distance (L2) from the first extension frame (120) to the first bending part (411) may be smaller than the distance (L1) from the first extension frame (120) to the second extension frame (130).

[0114] The third bending part (422) according to the present embodiment may be positioned at an angle with respect to the first direction and the second direction. For example, as shown in FIG. 7, the third bending part (422) may be positioned at a predetermined angle from the second extension frame (130) toward the rear wall part (210).

[0115] Accordingly, the module frame (200) according to the present embodiment can increase space utilization by relatively reducing the width size parallel to the second direction.

[0116] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0117] Therefore, the technical scope of protection of the present invention should be determined by the following patent claims.

Claims

1. A laminate having a solar cell; and A module frame supporting the above laminate; including The above module frame is, A base frame spaced apart from the above laminate; A first support frame extending from the base frame and positioned to surround the laminate; A second support frame extending from the base frame and positioned to surround the first support frame; and A solar cell module characterized by including a restraining member provided on the first support frame and the second support frame, which limits the relative movement of the first support frame and the second support frame.

2. In Paragraph 1, A solar cell module characterized in that the above module frame includes a steel material.

3. In Paragraph 1, The above base frame is, A floor frame spaced apart along a first direction from the rear of the above laminate; A first extension frame extending from the floor frame toward the rear of the laminate; and A solar cell module characterized by including: a second extension frame extending from the floor frame toward the rear surface of the laminate and positioned to face the first extension frame.

4. In Paragraph 3, A solar cell module characterized in that the first extension frame and the second extension frame are arranged parallel to the first direction.

5. In Paragraph 3, A solar cell module characterized in that the first extension frame and the second extension frame are spaced apart along a second direction that intersects the first direction.

6. In Paragraph 3, The above first support frame is, A rear wall portion connected to the first extension frame and positioned to face the rear surface of the laminate; A first side wall connected to the rear wall and positioned to face the side of the laminate; and It includes a first front wall portion connected to the first side wall portion and positioned to face the front of the laminate; The above second support frame is, A second side wall connected to the second extension frame and positioned to face the first side wall; and A solar cell module characterized by including a second front wall portion connected to the second side wall portion and positioned to face the first front wall portion.

7. In Paragraph 6, A solar cell module characterized by having a bent portion formed at the end of the first front wall portion that extends toward the front of the laminate.

8. In Paragraph 6, The above restraining part is, A first restraining member disposed between the rear wall portion and the first side wall portion and having a first bending portion; and A solar cell module characterized by including: a second restraining member disposed between the second extension frame and the second side wall portion and having a second bending portion that surrounds the first bending portion.

9. In Paragraph 8, A solar cell module characterized in that the first bending part and the second bending part are arranged to face the first direction.

10. In Paragraph 8, A solar cell module characterized in that the ratio of the gap between the rear wall and the second bending portion to the gap between the rear wall and the floor frame is 0.015 or more and 0.13 or less.

11. In Paragraph 8, A solar cell module characterized in that the first bending part and the second bending part are disposed on the outside of the base frame.

12. In Paragraph 11, A solar cell module characterized in that the distance from the first extension frame to the first bending portion is greater than the distance from the first extension frame to the second extension frame.

13. In Paragraph 11, A solar cell module characterized by further including: a second restraining member disposed between the second bending part and the second extension frame, and a third bending part facing the second bending part along a second direction intersecting the first direction.

14. In Paragraph 13, A solar cell module characterized in that the second bending portion is positioned to face the first direction, and the third bending portion is positioned to face the opposite direction of the first direction.

15. In Paragraph 8, A solar cell module characterized in that the first bending part and the second bending part are disposed on the inner side of the base frame.

16. In Paragraph 15, A solar cell module characterized in that the distance from the first extension frame to the first bending portion is smaller than the distance from the first extension frame to the second extension frame.

17. In Paragraph 15, A solar cell module characterized by further including: a second restraining member disposed between the second bending part and the second extension frame, and a third bending part facing along a second direction that intersects the second bending part and the first direction.

18. In Paragraph 17, A solar cell module characterized in that the second bending portion is positioned to face the first direction, and the third bending portion is positioned at an angle with respect to the first direction and the second direction.

19. In Paragraph 8, A solar cell module characterized by further including a third restraining member that extends from the second front wall portion and is positioned to wrap around the end of the first front wall portion.

20. In Paragraph 19, A solar cell module characterized in that the third restraining member is in contact with the front surface of the laminate.

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