Photovoltaic frame structure

Abstract

A photovoltaic frame structure, relating to the field of photovoltaic module technology, includes a photovoltaic frame body, which is composed of two long frame pieces, two short frame pieces, two double-sided adhesive strips, and a laminate. The two long frame pieces are located on both sides of the photovoltaic frame body, the two short frame pieces are located at the front and rear ends of the photovoltaic frame body, and the laminate is located on the upper surface of the photovoltaic frame body. This solution solves the problem that the transportation and handling of lightweight modules based on ultra-thin glass and the inability to automatically apply adhesive and assemble frames on existing equipment.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, specifically a photovoltaic frame structure. Background Technology

[0002] With the increasingly widespread application of photovoltaic (PV) modules, there is a growing trend of installing PV modules on rooftops with insufficient load capacity, especially in light steel frame factories, farm sheds, and villas. Currently, lightweight modules on the market are divided into two main categories: polymer front and back panel lightweight modules (commonly known as "flexible modules") and ultra-thin glass-based modules. Both polymer front and back panel "flexible modules" and ultra-thin glass-based lightweight modules have the following pain points: first, insufficient safety performance; and second, low module efficiency. Glass-based modules, especially ultra-thin glass-based lightweight modules, can solve these two problems of "flexible modules".

[0003] However, ultra-thin glass substrates also have two other pain points. Given the application scenarios requiring replacement of flexible modules and the need for economical and convenient installation, frameless modules or those with very small frames are generally used and then glued to the metal roof. However, both frameless modules and those with very small frames present two major challenges: First, with frameless modules, the glass edges are weak points, leading to a high rate of breakage during transportation and handling—reportedly exceeding 1%. Therefore, lightweight glass-based modules must be protected with edge protection materials. Second, with thin frames, the small cross-section and narrow glue channels make them prone to deformation. Existing glue application and frame assembly equipment cannot be automated, and even modifications are difficult to achieve compatibility, thus failing to meet current needs. To address this, we propose a photovoltaic frame structure. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic frame structure to solve the problems mentioned in the background art, such as insufficient safety performance of ultra-thin glass-based lightweight modules, low module efficiency, and the inability to automatically glue and assemble frames on existing equipment when transporting explosive components and thin frames.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic frame structure, comprising a photovoltaic frame body, wherein the photovoltaic frame body is composed of two long frame members, two short frame members, two double-sided adhesive strips, and a laminate. The two long frame members are located on both sides of the photovoltaic frame body. Each long frame member includes an inner rib, and an outer rib is provided on the outer side of the inner rib. A top plate is provided at the upper end between the inner and outer ribs, and the inner, outer, and top ribs constitute a photovoltaic frame structure. The long frame has a raised structure, and the bottom of the raised structure has a long frame connecting plate extending inward. The two short frames are located at the front and rear ends of the photovoltaic frame body. The short frames include inner ribs and outer ribs. A top plate is provided at the upper end between the inner and outer ribs, and a bottom plate is provided at the lower end. The laminate is located on the upper surface of the photovoltaic frame body.

[0006] Preferably, the length of the long frame is greater than the length of the long side of the laminate, so as to leave space for bonding the two ends of the short frame.

[0007] Preferably, the upper end of the long frame connecting plate is provided with an adhesive surface, and the long frame is pasted to the long edge of the laminate using double-sided adhesive.

[0008] Preferably, the top surface of the long frame protrusion structure is lower than the glass horizontal surface of the laminate.

[0009] Preferably, the distance between the bottom surface of the long frame connecting plate and the bottom surface of the laminate is set between two and three millimeters.

[0010] Preferably, the two ends of the short frame base plate are fixed to the double-sided adhesive at the ends of the adhesive surface.

[0011] Preferably, the height of the inner and outer reinforcing bars of the short frame does not exceed the distance from the adhesive surface to the top surface of the long frame top plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model utilizes lightweight photovoltaic framed modules and a special double-sided adhesive pressing-type frame assembly technology. A specially structured frame is installed at the glass edge, providing effective cushioning and protection for the glass during transportation and handling, significantly reducing the risk of breakage due to impacts. Furthermore, the double-sided adhesive pressing-type frame assembly method is simple to operate, requiring no complex processes or high-precision equipment, and can quickly assemble the frame. Compared to traditional frame assembly methods, it greatly improves production efficiency and represents a significant breakthrough in production convenience.

[0014] 2. This utility model employs a unique double-sided adhesive pressing-type frame assembly method, cleverly avoiding reliance on new equipment and eliminating the need for costly development of new devices. Simultaneously, it is not limited by existing equipment in frame assembly, allowing full utilization of existing production equipment and resources to achieve efficient frame assembly production without large-scale equipment modifications. This method not only reduces equipment research and development and purchase costs but also minimizes time and labor costs associated with equipment modification.

[0015] 3. By optimizing the shape, material, and packaging process of the frame, this utility model can effectively reduce the adhesion and accumulation of dust on the surface of the component and around the frame, which helps to maintain the good working condition of the component, reduce the performance impact caused by dust accumulation, extend the maintenance cycle of the component, reduce maintenance costs, and at the same time improve the power generation efficiency and service life of the component. Attached Figure Description

[0016] Figure 1 This is an axonometric perspective view of the lightweight photovoltaic module of this utility model;

[0017] Figure 2 This is an exploded view of the lightweight photovoltaic module of this utility model;

[0018] Figure 3 For the present utility model Figure 1 Schematic diagram of the cross section in the B direction;

[0019] Figure 4 This is a schematic diagram of the long frame cross-section of this utility model;

[0020] Figure 5 This is a schematic diagram of the short frame cross-section of this utility model;

[0021] Figure 6 For the present utility model Figure 1 An enlarged view of point A is shown below;

[0022] Figure 7 This is a schematic cross-sectional view of the lightweight photovoltaic module in Embodiment 2 of this utility model;

[0023] Figure 8 This is a schematic cross-sectional view of the long and short borders in Embodiment 2 of this utility model;

[0024] Figure 9 This is a schematic diagram of the explosion of a lightweight photovoltaic module in Embodiment 2 of this utility model;

[0025] Figure 10 This is an enlarged schematic diagram of the corner assembly structure of the lightweight photovoltaic module in Embodiment 2 of this utility model;

[0026] In the diagram: 110, long frame; 111, inner rib of long frame; 112, outer rib of long frame; 113, top plate of long frame; 114, adhesive surface; 115, connecting plate of long frame; 120, short frame; 121, inner rib of short frame; 122, outer rib of short frame; 123, top plate of short frame; 125, bottom plate of short frame; 200, double-sided adhesive; 300, laminate; 400, main body of photovoltaic frame. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0028] Please see Figure 1-4 This utility model provides an embodiment of a photovoltaic frame structure, including a photovoltaic frame body 400. The photovoltaic frame body 400 is composed of two long frame pieces 110, two short frame pieces 120, two double-sided adhesive strips 200, and a laminate 300. The two long frame pieces 110 are located on both sides of the photovoltaic frame body 400. Each long frame piece 110 includes an inner rib 111 and an outer rib 112. A top plate 113 is provided at the upper end between the inner rib 111 and the outer rib 112. The inner rib 111, the outer rib 112, and the top plate 113 constitute a protruding structure of the long frame piece 110. The bottom of the protruding structure of the long frame piece 110 is provided with a facing... The long frame connecting plate 115 extends from the inside, and two short frames 120 are located at the front and rear ends of the photovoltaic frame body 400. The short frame 120 includes a short frame inner rib 121. The short frame 120 includes a short frame inner rib 121. A short frame outer rib 122 is provided on the outside of the short frame inner rib 121. A short frame top plate 123 is provided at the upper end between the short frame inner rib 121 and the short frame outer rib 122. A short frame bottom plate 125 is provided at the lower end between the short frame inner rib 121 and the short frame outer rib 122. The laminate 300 is located on the upper surface of the photovoltaic frame body 400. The laminate 300 is a photovoltaic module encapsulation laminate. Its internal encapsulation consists of a battery string array, which is encapsulated by materials such as ultra-thin glass, film, backsheet, and junction box.

[0029] Based on an ultra-thin glass-based front panel, it is assembled with a long frame 110 and a short frame 120 using double-sided adhesive 200. It does not require traditional frame assembly and forms effective edge protection for the module by direct bonding. As for the selection of module laminates, apart from the glass-based front panel, other materials such as adhesive film, back sheet, junction box, etc. are the same as those of conventional modules in the industry.

[0030] Please see Figure 4 and Figure 6 The length of the long frame 110 is greater than the length of the long side of the laminate 300, which is used to leave space to bond the two ends of the short frame 120. The materials of the long frame 110 and the short frame 120 can be aluminum frames or polymer materials.

[0031] Please see Figure 3 and Figure 4 The upper end of the long frame connecting plate 115 is provided with an adhesive surface 114, and the long frame 110 is attached to the long edge of the laminate 300 by double-sided adhesive 200.

[0032] Please see Figure 3 and Figure 4 The top surface of the 110mm raised structure on the long frame is lower than the glass surface of the 300mm laminate, which serves to prevent dust accumulation.

[0033] Please see Figure 3 and Figure 4 The distance between the bottom surface of the long frame connecting plate 115 and the bottom surface of the laminate 300 is set between two and three millimeters to avoid the components being suspended too high, thus ensuring that the adhesive layer is high enough to cover the entire component when the components are installed on the roof.

[0034] Please see Figure 3 and Figure 6 The two ends of the short frame base plate 125 are fixed to the double-sided adhesive 200 at the end of the adhesive surface 114. The double-sided adhesive 200 is generally butyl double-sided adhesive, but it can also be silicone sealant, structural adhesive, or any adhesive suitable for bonding.

[0035] Please see Figure 3 , Figure 4 , Figure 5 and Figure 6 The height of the inner side rib 121 and the outer side rib 122 of the short frame shall not exceed the distance from the adhesive surface 114 to the top surface of the top plate 113 of the long frame. That is, the horizontal plane of the top plate 123 of the short frame should not be higher than the horizontal plane of the laminate 300 glass, so as to prevent dust accumulation. Example 2

[0036] Unlike Embodiment 1, in Embodiment 2, the short frame 120 is attached to the short edge of the back side of the laminate 300 using two separate double-sided adhesive strips 200.

[0037] like Figure 7-10As shown, the processing length of the short frame 120 must be shorter than the short side length of the laminate 300, and it must avoid the long frame connecting plate 115 of the long frame 110; that is, in Embodiment 1, the short frame 120 overlaps the double-sided adhesive 200 on the adhesive surface 114; however, in Embodiment 2, the short frame 120 is independently attached to the laminate 300 using double-sided adhesive; therefore, Embodiment 2 requires four double-sided adhesive strips. 。

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A photovoltaic frame structure, comprising a photovoltaic frame body (400), characterized in that: The photovoltaic frame body (400) consists of two long frame pieces (110), two short frame pieces (120), two double-sided adhesive strips (200), and a laminate (300). The two long frame pieces (110) are located on both sides of the photovoltaic frame body (400). Each long frame piece (110) includes an inner rib (111) and an outer rib (112) on the outside of the inner rib (111). A top plate (113) is provided at the upper end between the inner rib (111) and the outer rib (112). The inner rib (111), the outer rib (112), and the top plate (113) together form a raised structure of the long frame piece (110). The bottom of the protruding structure of the long frame (110) is provided with a long frame connecting plate (115) extending inward. The two short frames (120) are located at the front and rear ends of the photovoltaic frame body (400). The short frame (120) includes a short frame inner rib (121). A short frame outer rib (122) is provided on the outside of the short frame inner rib (121). A short frame top plate (123) is provided at the upper end between the short frame inner rib (121) and the short frame outer rib (122). A short frame bottom plate (125) is provided at the lower end between the short frame inner rib (121) and the short frame outer rib (122). The laminate (300) is located on the upper surface of the photovoltaic frame body (400).

2. The photovoltaic frame structure according to claim 1, characterized in that: The length of the long frame (110) is greater than the length of the long side of the laminate (300), which is used to leave space to attach the two ends of the short frame (120).

3. A photovoltaic frame structure according to claim 1, characterized in that: The upper end of the long frame connecting plate (115) is provided with an adhesive surface (114), and the long frame (110) is pasted to the long edge of the laminate (300) by double-sided adhesive (200).

4. A photovoltaic frame structure according to claim 1, characterized in that: The top surface of the raised structure of the long frame (110) is lower than the glass horizontal surface of the laminate (300).

5. A photovoltaic frame structure according to claim 1, characterized in that: The distance between the bottom surface of the long frame connecting plate (115) and the bottom surface of the laminate (300) is set between two and three millimeters.

6. A photovoltaic frame structure according to claim 3, characterized in that: The two ends of the short frame base plate (125) are fixed to the double-sided adhesive (200) at the end of the adhesive surface (114).

7. A photovoltaic frame structure according to claim 1, characterized in that: The height of the inner side rib (121) and the outer side rib (122) of the short frame does not exceed the distance from the adhesive surface (114) to the top surface of the top plate (113) of the long frame.

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