Composite photovoltaic compact and frame

Abstract

The utility model relates to a kind of composite photovoltaic briquetting and frame, by resin matrix and the multiple layer reinforcing fabric cloth evenly distributed in resin matrix, the photovoltaic briquetting includes transverse briquetting head, briquetting vertical beam connected with briquetting head, briquetting crossbeam connected with briquetting vertical beam and bottom support connected with briquetting crossbeam, the bottom surface of briquetting head is used to press down the top of frame, the bottom surface of briquetting head is equipped with downward briquetting protrusion and upward briquetting groove, briquetting vertical beam is used to be pasted with the lateral wall of frame, on the cross section of briquetting, each layer reinforcing fabric cloth extends to bottom support from the head of briquetting.The composite photovoltaic briquetting of the utility model can overcome the problem that the insulation, corrosion resistance and fixing strength with frame of existing briquetting cannot meet the requirements when it is used in high humidity and high corrosive area such as coastal, beach and saline-alkali soil.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic profile technology, specifically a composite photovoltaic pressing block and frame. Background Technology

[0002] Photovoltaic energy, as a clean and renewable energy source, is receiving increasing global attention. Photovoltaic modules are the core component for photoelectric conversion, and photovoltaic (PV) blocks, as an important part of PV modules, are crucial for improving the efficiency and stability of PV systems. A PV module mainly consists of solar cells, a frame, blocks, connecting wires, a junction box, and encapsulation materials. The main function of the blocks is to connect the PV panels in series to form a string of power generation modules. Blocks are generally made of lightweight, high-strength materials such as aluminum alloys. However, when applied in high-humidity and highly corrosive areas such as coastal areas, tidal flats, and saline-alkali lands, the insulation and corrosion resistance of these blocks face significant challenges. Furthermore, corrosion greatly affects the fit and fixation between the blocks and the frame. Summary of the Invention

[0003] This utility model provides a composite photovoltaic clamping block that can overcome the problems that existing clamping blocks cannot meet the requirements for insulation, corrosion resistance and fixing strength with the frame when used in high humidity and high corrosion areas such as coastal areas, tidal flats and saline-alkali land.

[0004] The composite photovoltaic pressing block of this utility model is composed of a resin matrix and multiple layers of reinforcing fabric uniformly distributed in the resin matrix. The photovoltaic pressing block includes a transverse pressing block head, a pressing block vertical beam connected to the pressing block head, a pressing block horizontal beam connected to the pressing block vertical beam, and a bottom support connected to the pressing block horizontal beam. The bottom surface of the pressing block head is used to press down on the top of the frame. The bottom surface of the pressing block head is provided with a downward pressing block protrusion and an upward pressing block groove. The pressing block vertical beam is used to abut against the side wall of the frame. In the cross-section of the pressing block, each layer of the reinforcing fabric extends from the pressing block head to the bottom support.

[0005] Preferably, the multiple layers of the reinforcing fabric are arranged in parallel within the head of the pressing block, the vertical beam of the pressing block, and the horizontal beam of the pressing block.

[0006] Preferably, the reinforcing fabric is a carbon fiber cloth or a glass fiber cloth with a ±45° angle.

[0007] Preferably, the bottom support includes a vertical connecting part and a horizontal bottom, one end of the connecting part is connected to the pressure block beam, and the other end is connected to the middle of the bottom.

[0008] Preferably, the pressure block beam has a threaded hole that runs through both the top and bottom.

[0009] The present invention also provides a composite photovoltaic frame that cooperates with the pressing block as described above. The frame is composed of a resin matrix and reinforcing fibers distributed within the resin matrix. The reinforcing fibers extend longitudinally along the frame. The frame includes a rectangular frame, a pressing block vertical beam extending upward from the rectangular frame, and a frame head extending laterally from the pressing block vertical beam. The top surface of the rectangular frame and the bottom surface of the frame head form a snap-fit ​​groove for accommodating and fixing fasteners. The top surface of the frame head cooperates with the bottom surface of the pressing block head, and the top surface of the frame head is provided with a frame protrusion that cooperates with the pressing block groove and a frame groove that cooperates with the pressing block protrusion.

[0010] Preferably, the bottom surface of the frame head is provided with a longitudinally extending adhesive groove.

[0011] Preferably, the inner wall of the rectangular frame is provided with longitudinally extending reinforcing ribs.

[0012] Compared with existing technologies, this invention has the following advantages: The composite photovoltaic clamping block of this invention is composed of a resin matrix and multiple layers of reinforcing fabric distributed within the matrix. The resin matrix has better corrosion resistance than aluminum alloy clamping blocks, making it more suitable for coastal areas, tidal flats, and saline-alkali lands. It also has better insulation properties, preventing creepage and thus improving the insulation and safety performance of the photovoltaic frame. The reinforcing fabric increases the strength of the clamping block, ensuring it meets strength requirements and has passed conventional load tests on photovoltaic panels. Furthermore, the cost of this composite clamping block is only 2 / 3 that of an aluminum alloy clamping block of the same specifications, resulting in a significant cost reduction and a large market potential. The clamping block protrusions and grooves are used to mate with the grooves and protrusions of the frame, respectively, thereby improving the stability of the fit between the clamping block and the frame. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the composite photovoltaic pressing block and frame according to an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the composite photovoltaic block and frame cut along a cross section according to an embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the structure of a composite photovoltaic pressure block installed behind a frame, according to an embodiment of the utility model.

[0016] Figure Labels

[0017] 1. Pressing block, 11. Resin matrix, 12. Reinforcing fabric, 13. Pressing block head, 131. Pressing block protrusion, 132. Pressing block groove, 14. Pressing block vertical beam, 15. Pressing block horizontal beam, 151. Threaded hole, 16. Bottom support, 161. Connecting part, 162. Bottom.

[0018] 2. Frame, 21. Resin matrix, 22. Reinforcing fiber, 23. Rectangular frame, 231. Reinforcing rib, 24. Frame vertical beam, 25. Frame head, 251. Glue overflow groove, 252. Frame protrusion, 253. Frame groove, 26. Engaging groove. Detailed Implementation

[0019] This utility model provides a composite photovoltaic pressing block 1, such as Figure 2 As shown, it is composed of a resin matrix 11 and a multi-layered reinforcing fabric 12 distributed within the matrix. Figure 1 As shown, the photovoltaic pressing block 1 includes a horizontal pressing block head 13, a pressing block vertical beam 14 connected to the pressing block head 13, a pressing block horizontal beam 15 connected to the pressing block vertical beam 14, and a bottom support 16 connected to the pressing block horizontal beam 15. The bottom surface of the pressing block head 13 is used to press down on the top of the frame 2. The bottom surface of the pressing block head 13 is provided with a downward pressing block protrusion 131 and an upward pressing block groove 132. The pressing block vertical beam 14 is used to abut against the side wall of the frame 2. The bottom support 16 is used to support the purlin or bracket. Figure 2 As shown, in the cross-section of the pressure block 1, each layer of the reinforcing fabric 12 extends from the head of the pressure block 1 to the bottom support 16.

[0020] The composite photovoltaic pressing block 1 of this utility model is composed of a resin matrix 11 and multiple layers of reinforcing fabric 12 distributed within the matrix. The resin matrix 11 has better corrosion resistance than the aluminum alloy pressing block 1, making it more suitable for coastal areas, tidal flats, and saline-alkali land. It also has better insulation properties, preventing creepage and thus improving the insulation and safety performance of the photovoltaic frame 2. The reinforcing fabric 12 increases the strength of the pressing block 1, ensuring it meets strength requirements and has passed conventional load tests on photovoltaic panels. Furthermore, the cost of the composite pressing block 1 of this utility model is only 2 / 3 that of an aluminum alloy pressing block 1 of the same specifications, resulting in a significant cost reduction and a large market potential. Additionally, the pressing block protrusions 131 and grooves 132 are respectively used to mate with the grooves and protrusions of the frame 2, thereby improving the stability of the fit between the pressing block 1 and the frame 2.

[0021] like Figure 2 As shown, the multiple layers of reinforcing fabric 12 are arranged in parallel within the pressure block head 13, the pressure block vertical beam 14, and the pressure block horizontal beam 15. The bottom support 16 includes a vertical connecting portion 161 and a horizontal bottom 162. One end of the connecting portion 161 is connected to the pressure block horizontal beam 15, and the other end is connected to the middle of the bottom 162. Figure 2As shown, the reinforcing fabric 12 is vertically arranged within the connecting portion 161 of the bottom support 16. At the horizontal bottom 162, the reinforcing fabric 12 near the side of the frame 2 (on the left in the figure) extends horizontally to the left, while the reinforcing fabric 12 away from the frame 2 extends horizontally to the right, thus ensuring that the reinforcing fabric 12 is evenly distributed within the bottom support 16. In this embodiment, the reinforcing fabric 12 is a carbon fiber cloth or fiberglass cloth with a ±45° angle.

[0022] like Figure 1 As shown, the pressure block beam 15 has a threaded hole 151 that runs vertically through it, and the pressure block 1 is fixed to the purlin or bracket by bolts and the threaded hole 151.

[0023] This utility model also provides a composite photovoltaic frame 2, which can be used in conjunction with the aforementioned pressing block 1, such as... Figure 2 As shown, the frame 2 is composed of a resin matrix 21 and reinforcing fibers 22 distributed within the resin matrix 21, as... Figure 1 As shown, the frame 2 includes a rectangular frame 23, a frame vertical beam 24 extending upward from the rectangular frame 23, and a frame head 25 extending laterally from the frame vertical beam 24. The top surface of the rectangular frame 23 and the bottom surface of the frame head 25 form a snap-fit ​​groove 26 for accommodating and fixing the fastener. The top surface of the frame head 25 mates with the bottom surface of the pressure block head 13, and the top surface of the frame head 25 is provided with a frame protrusion 252 that mates with the pressure block groove 132 and a frame groove 253 that mates with the pressure block protrusion 131.

[0024] The composite photovoltaic frame 2 of this invention also possesses excellent corrosion resistance, making it more suitable for coastal areas, tidal flats, and saline-alkali lands. Simultaneously, it exhibits superior insulation properties, preventing creepage and thus enhancing the insulation and safety performance of the photovoltaic frame 2. The reinforcing fiber 22 increases the strength of the pressure block 1, ensuring it meets strength requirements. Furthermore, the frame protrusions 252 and frame grooves 253 are respectively designed to engage with the grooves and protrusions of the pressure block 1, thereby improving the stability of the fit between the pressure block 1 and the frame 2.

[0025] As shown in Figure 1, the bottom surface of the frame head 25 is provided with a longitudinally extending glue overflow groove 251. When the fastener is glued and assembled with the frame 2, the excess glue can fill into the glue overflow groove 251 to prevent the glue from overflowing outwards. At the same time, it increases the bonding force between the large fastener and the frame 2, thereby improving the connection strength between the fastener and the frame 2.

[0026] As shown in Figure 1, the inner wall of the rectangular frame 23 is provided with longitudinally extending reinforcing ribs 231. In this embodiment, the upper and lower opposite inner walls of the rectangular frame 23 are each provided with two parallel longitudinal reinforcing ribs 231. The reinforcing ribs 231 can increase the longitudinal strength of the frame 2, and at the same time facilitate the positioning and guidance of corner brackets and nesting, thereby improving the assembly positioning accuracy of the connectors and the frame 2. Compared with the aluminum alloy pressing block 1, the composite material pressing block 1 has better insulation and corrosion resistance, and is better suited for coastal areas, tidal flats and saline-alkali land.

[0027] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Various modifications or equivalent substitutions made by those skilled in the art within the spirit and scope of this utility model also fall within the scope of protection of this utility model.

Claims

1. A composite photovoltaic compact, characterized by, The photovoltaic block is composed of a resin matrix and multiple layers of reinforcing fabric evenly distributed within the resin matrix. The photovoltaic block includes a transverse block head, a block vertical beam connected to the block head, a block horizontal beam connected to the block vertical beam, and a bottom support connected to the block horizontal beam. The bottom surface of the block head is used to press down on the top of the frame. The bottom surface of the block head is provided with a downward block protrusion and an upward block groove. The block vertical beam is used to abut against the side wall of the frame. In the cross-section of the block, each layer of the reinforcing fabric extends from the block head to the bottom support.

2. The composite photovoltaic compact of claim 1, wherein The multiple layers of reinforcing fabric are arranged in parallel within the head of the pressing block, the vertical beam of the pressing block, and the horizontal beam of the pressing block.

3. The composite photovoltaic compact of claim 1, wherein The reinforcing fabric is a carbon fiber cloth or a glass fiber cloth with a ±45° angle.

4. The composite photovoltaic compact of claim 1, wherein The bottom support includes a vertical connecting part and a horizontal bottom. One end of the connecting part is connected to the pressure block beam, and the other end is connected to the middle of the bottom.

5. The composite photovoltaic briquette according to claim 1, characterized in that, The pressure block crossbeam has a threaded hole that runs through both the top and bottom.

6. A composite photovoltaic frame, characterized in that, In conjunction with the pressure block according to any one of claims 1-5, the frame is composed of a resin matrix and reinforcing fibers distributed within the resin matrix, the reinforcing fibers extending longitudinally along the frame, the frame including a rectangular frame, a pressure block vertical beam extending upward from the rectangular frame, and a frame head extending laterally from the pressure block vertical beam, the top surface of the rectangular frame and the bottom surface of the frame head forming a snap-fit ​​groove for accommodating and fixing the fastener, the top surface of the frame head engaging with the bottom surface of the pressure block head, and the top surface of the frame head having a frame protrusion engaging with the pressure block groove and a frame groove engaging with the pressure block protrusion.

7. The composite photovoltaic frame according to claim 6, characterized in that, The bottom surface of the frame head is provided with a longitudinally extending adhesive groove.

8. The composite photovoltaic frame according to claim 6, characterized in that, The inner wall of the rectangular frame is provided with longitudinally extending reinforcing ribs.

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