Photovoltaic module with reinforcing rib structure

Abstract

The utility model discloses a photovoltaic module with a reinforcing rib structure, which comprises a reinforcing rib, a connecting piece and a photovoltaic module, the reinforcing rib comprises a supporting transverse plate and a supporting strip which are mutually and vertically connected, the connecting piece is buckled at two ends of the reinforcing rib, and the photovoltaic module comprises a mounting groove, a frame B surface, a frame C surface, a frame D surface and a laminating piece. The bottom of the frame B face and the bottom of the frame D face are provided with a frame C face, the top of the frame B face and the top of the frame D face are provided with installation grooves, the laminating piece is arranged in the installation grooves, the connecting pieces located at the two ends of the reinforcing rib are detachably connected with the frame B face and the frame D face respectively, and the bottoms of the connecting pieces are arranged on the frame C face so that the reinforcing rib and the laminating piece can be parallel to each other and close to the back face of the laminating piece. The photovoltaic assembly has the advantages of being compact in structure, high in structural strength, high in stability and the like, the mechanical load performance of the photovoltaic assembly is remarkably improved, the situation that the assembly loses efficacy after being treaded by personnel or seriously deforms and cracks in extreme weather is avoided, and the installation and maintenance requirements of the roof full-laying assembly are met.

Description

Technical Field

[0001] The utility model relates to the technical field of BIPV photovoltaic modules, and particularly relates to a photovoltaic module with a reinforcing rib structure. Background Art

[0002] BIPV mainly refers to integrating a photovoltaic power generation system on a newly-built building. As a part of the external structure of the building, it can not only maintain the original functionality, safety and aesthetics of the building, but also provide electrical energy through power generation throughout the year. At the same time, the heat energy converted by solar energy can meet the seasonal energy requirements of the building. A BIPV photovoltaic module is composed of a solar cell, a front and back glass panel, a glue film, a diode, a junction box, lead-out wires and a frame. Among them, the first three materials are laminated to form a laminate, and a metal frame is installed around to play a role in protection and pressure bearing. The BIPV photovoltaic module can be combined with a color steel tile and installed on the roof. In order to make full use of the limited roof area, the BIPV photovoltaic module is usually designed with full paving during installation, without reserved maintenance channels. This makes it necessary for workers to step on and walk on the module during installation and maintenance, and the load on its front side is relatively large.

[0003] In addition, the thickness of the glass used in the photovoltaic module has a tendency to become thinner. A thinner glass thickness helps to improve the light transmittance of the module, thereby improving the conversion efficiency of the photovoltaic module. At the same time, a thinner glass thickness optimizes the overall weight of the module, making it more suitable for lightweight application scenarios. However, this also increases the risk of load failure of the module caused by extreme weather such as hail, heavy snow and strong wind.

[0004] At present, the conventional module frame bears the force on the four peripheries, and the supporting members in the middle position have limited force, and there is a tendency for the glass thickness to become thinner and the module size to become larger. These are likely to cause excessive deformation and hidden cracks in the battery chips of the BIPV photovoltaic module during handling, installation, use and maintenance due to frequent trampling and extreme weather, affecting the power generation effect.

[0005] Chinese Patent CN206004597U discloses a reinforcing frame for a lightweight photovoltaic module. The cross-section of the reinforcing rib is a rectangular structure in the shape of a square tube, and a 3 / 4 circular arc cavity is arranged inside as a screw hole. Using self-tapping screws, the reinforcing rib is fixed on the module frame through the circular arc cavity and the screw holes reserved on the module frame, which can reduce the weight of the module while meeting the load requirements and having the performance of resisting wind and snow loads.

[0006] However, the structural stability of the rectangular cross-section is limited. Setting a 3 / 4 circular arc cavity inside the square tube poses great difficulties in aluminum alloy processing and relatively high costs. The load-bearing capacity of the side-hole and screw-fixing solution is limited, which may cause deformation of the frame after unilateral stress. There are still gaps between the reinforcing ribs and the components after fixation. During the processes of handling, installation, and maintenance, shaking, collision, and extrusion may occur, exacerbating the risks of component deformation and hidden cracks. Summary of the Invention

[0007] The technical problem to be solved by the present utility model is to provide a photovoltaic module with a reinforcing rib structure that is structurally compact, easy to install, and has strong supporting ability in view of the above problems of the prior art.

[0008] To solve the above technical problems, the technical solution adopted by the present utility model is as follows:

[0009] A photovoltaic module with a reinforcing rib structure, comprising: reinforcing ribs, connecting members, and a photovoltaic module. The reinforcing ribs include a support cross plate and support bars that are perpendicularly connected to each other. The connecting members are buckled at both ends of the reinforcing ribs. The photovoltaic module includes an installation groove, a frame B surface, a frame C surface, a frame D surface, and a lamination. The frame C surface is provided at the bottoms of the frame B surface and the frame D surface for the installation and fixation of the photovoltaic module. Installation grooves are provided at the tops of the frame B surface and the frame D surface. The lamination is arranged in the installation groove. The connecting members located at both ends of the reinforcing ribs are respectively detachably connected to the frame B surface and the frame D surface, and the bottoms of the connecting members are placed on the frame C surface to make the reinforcing ribs parallel to the lamination and close to the back of the lamination.

[0010] As a further improvement of the present utility model, the connecting member includes a connecting cross plate and a connecting bar that are perpendicularly connected to each other. The connecting bar is fitted between adjacent support bars and is located at the end of the reinforcing rib to connect and fix the connecting member to the reinforcing rib. The connecting cross plate is in contact with the frame C surface.

[0011] As a further improvement of the present utility model, the width of the connecting cross plate matches the width of the frame C surface.

[0012] As a further improvement of the present utility model, connection holes are provided on the connecting bar, and installation holes are provided on both the frame B surface and the frame D surface. By screwing fasteners into the connection holes and the installation holes, the connecting member is connected and fixed to the frame B surface and the frame D surface.

[0013] As a further improvement of the present utility model, a stripe groove is provided on the contact surface between the connecting member and the reinforcing rib, and an adhesive layer is filled in the stripe groove.

[0014] As a further improvement of the present utility model, the adhesive layer is prepared from silica gel, rubber, acrylate, epoxy resin, polyurethane, or modified silane materials.

[0015] As a further improvement of the present utility model, buffer layers are filled on the contact surfaces of the reinforcing ribs and the connectors with the photovoltaic module.

[0016] As a further improvement of the present utility model, the buffer layer is prepared from silica gel or rubber material.

[0017] As a further improvement of the present utility model, the reinforcing rib is prepared from aluminum alloy or steel material or high molecular organic material.

[0018] As a further improvement of the present utility model, the connector is prepared from aluminum alloy or steel material or high molecular organic material.

[0019] Compared with the prior art, the advantages of the present utility model are as follows:

[0020] For the photovoltaic module with a reinforcing rib structure of the present utility model, by mutually engaging and connecting the reinforcing rib and the connector, a reliable connection between the connector and the reinforcing rib is achieved, and the reinforcing rib is fixed between the C surface of the frame and the lamination piece by using the connector. The processing is simple and the fixing construction is convenient; by using the frame of the photovoltaic module as the bearing surface at the bottom and side of the reinforcing rib, the stability is strong, the mechanical load performance of the photovoltaic module is significantly improved, the failure of the photovoltaic module after being stepped on by personnel is avoided, or serious deformation and hidden cracks do not occur under extreme weather conditions, and the installation and maintenance requirements of the roof full-coverage modules are met. Description of the Drawings

[0021] Figure 1 It is a schematic structural principle diagram of the reinforcing rib in a specific embodiment of the present utility model;

[0022] Figure 2 It is a schematic structural principle diagram of the connection between the reinforcing rib and the frame of the photovoltaic module in a specific embodiment of the present utility model;

[0023] Figure 3 It is a cross-sectional schematic structural diagram of the connection between the reinforcing rib and the frame of the photovoltaic module in a specific embodiment of the present utility model;

[0024] Legend: 1, reinforcing rib; 11, support cross plate; 12, support strip; 2, connector; 21, connection cross plate; 22, connection strip; 23, connection hole; 3, stripe groove; 4, photovoltaic module; 41, installation groove; 42, B surface of the frame; 43, C surface of the frame; 44, D surface of the frame; 45, installation hole; 46, lamination piece; 5, buffer layer. Detailed Embodiment

[0025] The present utility model will be further described below in conjunction with the accompanying drawings of the specification and specific preferred embodiments, but the protection scope of the present utility model is not limited thereby.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "side", "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically and clearly defined.

[0028] Embodiment

[0029] As Figures 1 to 3 shown, the photovoltaic module with a reinforcing rib structure of the present utility model includes: a reinforcing rib 1, a connecting member 2, and a photovoltaic module 4. The reinforcing rib 1 has a support cross plate 11 and a support bar 12 that are perpendicularly connected to each other. The connecting member 2 is buckled at both ends of the reinforcing rib 1. After the connecting member 2 and the reinforcing rib 1 are engaged with each other, the whole presents a rectangle, and compared with the traditional "mouth" - shaped design, the stability is stronger. The photovoltaic module 4 includes a mounting groove 41, a frame B surface 42, a frame C surface 43, a frame D surface 44, and a laminate 46. The frame C surface 43 is provided at the bottom of the frame B surface 42 and the frame D surface 44 for mounting and fixing the photovoltaic module 4. The mounting groove 41 is provided at the top of the frame B surface 42 and the frame D surface 44. The laminate 45 is disposed in the mounting groove 41. The connecting members 2 located at both ends of the reinforcing rib 1 are respectively detachably connected to the frame B surface 42 and the frame D surface 44, and the bottom of the connecting member 2 is placed on the frame C surface 43 to enable the reinforcing rib 1 and the laminate 46 to be parallel to each other and close to the back surface of the laminate 46, and the support bar 12 plays a role in stable support.

[0030] Furthermore, both the reinforcing rib 1 and the connecting member 2 can be prepared from aluminum alloy materials, having the characteristics of simple structural design, low processing cost, convenient fixing and construction, etc. In other embodiments, the reinforcing rib 1 and the connecting member 2 can also be prepared from steel materials or high - molecular organic materials such as glass fiber polyurethane.

[0031] In this embodiment, by interlocking and connecting the reinforcing rib 1 and the connecting member 2, a reliable connection between the connecting member 2 and the reinforcing rib 1 is achieved, and the reinforcing rib 1 is fixed between the C surface 43 of the frame and the laminate 46 by the connecting member 2. The processing is simple and the fixing construction is convenient. Using the frame of the photovoltaic module 4 as the bearing surface for the bottom and side surfaces of the reinforcing rib 1, the stability is strong, the mechanical load performance of the photovoltaic module 4 is significantly improved, and the photovoltaic module 4 is prevented from failing after being stepped on by personnel, or undergoing serious deformation and hidden cracks in extreme weather, meeting the installation and maintenance requirements of full-coverage roof modules.

[0032] As Figure 1 shown, the connecting member 2 includes a connecting cross plate 21 and a connecting bar 22 that are perpendicularly connected to each other. The connecting bar 22 is fitted between adjacent support bars 12 and is located at the end of the reinforcing rib 1 to achieve the connection and fixation of the connecting member 2 and the reinforcing rib 1. The connecting cross plate 21 contacts the C surface 43 of the frame.

[0033] As Figure 2 shown, the width of the connecting cross plate 21 is the same as the width of the non-cavity area of the C surface 43 of the frame to achieve a stable connection between the reinforcing rib 1 and the frame of the photovoltaic module 4.

[0034] As Figure 1 shown, the connecting bar 22 is provided with a connecting hole 23, and mounting holes 45 are provided on both the B surface 42 and the D surface 44 of the frame. By screwing screws into the connecting hole 23 and the mounting holes 45, the connecting member 2 is connected and fixed to the B surface 42 and the D surface 44 of the frame. Using the B surface 42, the C surface 43, and the D surface 44 of the frame as the bearing surfaces for the bottom and side surfaces of the reinforcing rib 1 not only further enhances the stability but also avoids the deformation of the frame due to single-sided stress.

[0035] As Figure 1 shown, the contact surface between the connecting member 2 and the reinforcing rib 1 is provided with a stripe groove 3, and the stripe groove 3 is filled with an adhesive layer. Further, the adhesive layer is prepared from silicone. In this embodiment, the stripe groove 3 is provided at the cross plate of the reinforcing rib 1 and the connecting member 2 to accommodate more adhesive material, enhance the stability of adhesion, achieve a better adhesive effect, and also contribute to the improvement of the overall load performance of the photovoltaic module 4. In other embodiments, the adhesive layer can also be prepared from rubber or acrylate or epoxy resin or polyurethane or modified silane materials.

[0036] As Figure 3As shown, buffer layers 5 are filled at the contact surfaces between the reinforcing rib 1 and the connecting member 2 and the photovoltaic module 4. Specifically, the buffer layer 5 is prepared from silica gel material. The silica gel material can serve as a strong adhesive layer to bond the reinforcing rib 1, the connecting member 2 and the photovoltaic module 4 together, enhancing stability while avoiding stress caused by shaking, collision and extrusion, which may lead to deformation of the frame and the laminate 46 of the photovoltaic module 4. In other embodiments, the buffer layer 5 can also be prepared from rubber material.

[0037] In this embodiment, a reinforcing rib 1 is added to the back of the photovoltaic module 4. There is a buffer layer 5 between the reinforcing rib 1 and the photovoltaic module 4, and it is fixed to the frame by using the connecting member 2. Specifically, the structure of the reinforcing rib 1 consists of a supporting cross plate 11 and supporting bars 12, which are installed in the notch of the frame and are parallel to the laminate 46 as a whole; there are mounting holes left on the frame and the connecting member 2, and the reinforcing rib 1 is fixed to the frame by using screws; a buffer layer is provided at the contact position between the reinforcing rib 1 and the photovoltaic module 4, and a strong adhesive layer is provided at the contact position between the reinforcing rib 1 and the connecting member 2 to further enhance stability. The mechanical load performance of the photovoltaic module in this embodiment is improved, avoiding the failure of the module after being stepped on by personnel, or serious deformation and hidden cracks in extreme weather, meeting the installation and maintenance requirements of full-coverage roof modules.

[0038] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A photovoltaic module with a ribbed structure, characterized in that, Including: Reinforcing ribs (1), connecting pieces (2) and photovoltaic modules (4). The reinforcing ribs (1) include a supporting cross plate (11) and a supporting strip (12) that are perpendicularly connected to each other. The connecting pieces (2) are buckled at both ends of the reinforcing ribs (1). The photovoltaic module (4) includes an installation groove (41), a frame B surface (42), a frame C surface (43), a frame D surface (44) and a laminate (46). The frame C surface (43) is provided at the bottoms of the frame B surface (42) and the frame D surface (44) for installing and fixing the photovoltaic module (4). The installation groove (41) is provided at the tops of the frame B surface (42) and the frame D surface (44). The laminate (46) is arranged in the installation groove (41). The connecting pieces (2) located at both ends of the reinforcing ribs (1) are respectively detachably connected to the frame B surface (42) and the frame D surface (44), and the bottoms of the connecting pieces (2) are placed on the frame C surface (43) to make the reinforcing ribs (1) parallel to the laminate (46) and close to the back surface of the laminate (46).

2. The photovoltaic module with a ribbed structure according to claim 1, wherein, The connecting piece (2) includes a connecting cross plate (21) and a connecting strip (22) that are perpendicularly connected to each other. The connecting strip (22) is fitted between adjacent supporting strips (12) and is located at the end of the reinforcing rib (1) to connect and fix the connecting piece (2) to the reinforcing rib (1). The connecting cross plate (21) contacts the frame C surface (43).

3. The photovoltaic module with a ribbed structure according to claim 2, characterized in that, The width of the connecting cross plate (21) matches the width of the frame C surface (43).

4. The photovoltaic module with a ribbed structure according to claim 2, wherein, The connecting strip (22) is provided with a connecting hole (23), and installation holes (45) are provided on both the frame B surface (42) and the frame D surface (44). By screwing fasteners into the connecting hole (23) and the installation hole (45), the connecting piece (2) is connected and fixed to the frame B surface (42) and the frame D surface (44).

5. The photovoltaic module with a ribbed structure according to claim 4, wherein, The contact surface between the connecting piece (2) and the reinforcing rib (1) is provided with a stripe groove (3), and the stripe groove (3) is filled with an adhesive layer.

6. The photovoltaic module with a ribbed structure according to claim 5, characterized in that, The adhesive layer is prepared from silica gel or rubber or acrylate or epoxy resin or polyurethane or modified silane material.

7. The photovoltaic module with a ribbed structure according to claim 5, wherein, Buffer layers (5) are filled on the contact surfaces of the reinforcing ribs (1) and the connecting pieces (2) with the photovoltaic module (4).

8. The photovoltaic module with a ribbed structure according to claim 7, characterized in that, The buffer layer (5) is prepared from silica gel or rubber material.

9. The photovoltaic module with a ribbed structure according to any one of claims 1 to 8, characterized in that, The reinforcing rib (1) is prepared from aluminum alloy or steel material or high molecular organic material.

10. The photovoltaic module with a ribbed structure according to any one of claims 1 to 8, characterized in that, The connecting piece (2) is prepared from aluminum alloy or steel material or high molecular organic material.

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