A frame, mounting frame and photovoltaic module

Abstract

This application discloses a frame, relating to the field of photovoltaic power generation. The frame has a mounting groove for fixing a photovoltaic laminate. The mounting groove includes a channel for accommodating the edge of the photovoltaic laminate and a top plate located on top of the photovoltaic laminate. One end of the top plate contacts the front of the photovoltaic laminate and has a drainage channel. The other end of the drainage channel passes through the frame and communicates with the outside. Water accumulated on the front of the photovoltaic laminate can enter the drainage channel under capillary action. An installation frame including at least one of the above-described frame structures is also disclosed. A photovoltaic module, including a photovoltaic laminate and the above-described installation frame, is also disclosed. One of the frames with the drainage channel is at its lowest position during photovoltaic module installation, allowing liquid on the front of the photovoltaic laminate to enter the drainage channel under capillary action. This application provides a drainage channel integrated with the frame, improving drainage efficiency.

Description

Technical Field

[0001] This application relates to the field of photovoltaic power generation technology, specifically to a frame, mounting frame, and photovoltaic module. Background Technology

[0002] In actual use, existing photovoltaic modules have a certain height difference between the A-side of the frame and the glass surface. When rain falls on the glass surface, rainwater cannot drain in time and will accumulate at the corners or bottom edge of the photovoltaic module. During the evaporation process, the accumulated water will cause rainbow stripes and glare phenomena on the photovoltaic module, which will seriously affect the normal power generation of the photovoltaic module.

[0003] To drain accumulated water, some technologies utilize the siphon effect to drain water. However, such drainage tools can obstruct the solar cells during use, affecting power generation. Furthermore, in windy weather, these drainage tools are easily blown away, posing a safety hazard.

[0004] In addition, there are also frames in the industry that use the entire A-side to prevent water from accumulating on the glass surface. However, such frames have poor support for photovoltaic modules and are only suitable for environments with low load requirements. They are easily damaged in extreme environments, have poor stability, and are not suitable for areas with frequent strong winds and other extreme weather. Utility Model Content

[0005] This application aims to address one of the technical problems in related technologies to a certain extent. To this end, this application provides a frame, a mounting frame, and a photovoltaic module.

[0006] To achieve the above objectives, this application adopts the following technical solution: a frame, wherein the frame is provided with a mounting groove for fixing a photovoltaic laminate, the mounting groove includes a groove for accommodating the edge of the photovoltaic laminate and a top plate located on the upper part of the photovoltaic laminate, one end of the top plate is in contact with the front of the photovoltaic laminate and has a flow channel, the other end of the flow channel passes through the frame and communicates with the outside, and water accumulated on the front of the photovoltaic laminate can enter the flow channel under the action of capillary water absorption.

[0007] Furthermore, the frame is equipped with drainage holes, and one end of the drainage channel is connected to the drainage holes. This facilitates the drainage of accumulated water from the frame.

[0008] Furthermore, the frame is provided with a corner code groove, and a drainage hole is opened at the bottom of the corner code groove. One end of the guide channel is connected to the corner code groove.

[0009] Furthermore, the mounting groove includes a support plate opposite to the top plate and a side plate connecting the top plate and the support plate, with a flow channel passing through the top plate and the side plate.

[0010] Furthermore, the drainage holes are spaced apart along the length of the frame, with 4-10 holes in total. This allows water to drain from the frame more quickly.

[0011] Furthermore, the drainage channels extend through the frame along its length. This increases the distribution length of the drainage channels on the front side of the photovoltaic laminate, allowing for a larger contact area with accumulated water and improving drainage efficiency.

[0012] Furthermore, there is a height difference between the opening at the end of the flow channel near the photovoltaic laminate and the front side of the photovoltaic laminate. This makes the flow channel less prone to clogging and ensures better drainage performance.

[0013] Furthermore, a filter screen is installed at the end of the flow channel near the photovoltaic laminate to prevent clogging of the flow channel.

[0014] This application also discloses an installation frame for fixing photovoltaic modules, the installation frame including multiple frames and at least one frame adopting any of the frame structures described above.

[0015] In this technical solution, at least one edge of the mounting frame has a drainage channel to facilitate the drainage of accumulated water.

[0016] Furthermore, it also includes multiple corner bracket connectors, with adjacent sides of the mounting frame connected by corner bracket connectors.

[0017] This application also discloses a photovoltaic module, including a photovoltaic laminate and any of the above-mentioned mounting frames, wherein one of the frames having the flow channel is at the lowest position when the photovoltaic module is installed, and water accumulated on the front of the photovoltaic laminate can enter the flow channel under the action of capillary water absorption and be discharged from the frame along the flow channel.

[0018] In this technical solution, by setting a drainage channel on the frame, water accumulated on the front of the photovoltaic laminate can be drained, preventing water from accumulating on the front of the photovoltaic laminate, thereby improving the power generation efficiency and power output of the photovoltaic module. The drainage channel is directly set on the frame, eliminating the need for additional drainage components, making the overall structure of the photovoltaic module more compact and easy to install, and reducing the impact of external factors on the drainage effect.

[0019] In addition to the beneficial effects of the frame mentioned above, the photovoltaic module provided by this technical solution also has better mechanical load performance compared to photovoltaic modules without an A-side frame structure.

[0020] These features and advantages of this application will be disclosed in detail in the following specific embodiments and accompanying drawings. The best embodiments or means of this application will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this application. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0021] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0022] Figure 1 This is a front cross-sectional view of the frame structure according to one embodiment of this application;

[0023] Figure 2 This is a side view of the border structure of one embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the distribution of drainage holes on the frame of one embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the frame and photovoltaic laminate installation state according to one embodiment of this application;

[0026] Figure 5 This is a schematic diagram of the installation and use of a photovoltaic module according to one embodiment of this application.

[0027] in,

[0028] 10. Frame; 11. Mounting groove; 111. Groove body; 112. Top plate; 113. Side plate; 114. Support plate; 12. Flow channel; 13. Drainage hole; 14. Corner code groove; 20. Photovoltaic laminate. Detailed Implementation

[0029] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments in the implementation are intended to explain this application and should not be construed as limiting this application.

[0030] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0031] See appendix Figure 1One embodiment of this utility model includes a frame 10, which has a mounting groove 11 for fixing a photovoltaic laminate 20. The mounting groove 11 includes a groove 111 for accommodating the edge of the photovoltaic laminate 20 and a top plate 112 located on the upper part of the photovoltaic laminate 20. One end of the top plate 112 is in contact with the front of the photovoltaic laminate 20 and has a flow channel 12. The other end of the flow channel 12 passes through the frame 10 and communicates with the outside. Water accumulated on the front of the photovoltaic laminate 20 can enter the flow channel 12 under the action of capillary water absorption. As the liquid enters, when the liquid passes the highest point in the flow channel 12, it will be discharged from the frame 10 along the flow channel 12 under its own gravity.

[0032] In this embodiment, the top plate 112 is located on top of the photovoltaic laminate 20 during installation, providing better support for the edges of the photovoltaic laminate 20. This prevents deformation of the photovoltaic module during use, such as sinking in the middle and warping at the edges, ensuring the flatness of the front of the photovoltaic laminate 20 and improving power generation efficiency. In this embodiment, a flow channel 12 is provided on the top plate 112 of the frame 10. Since one end of the top plate 112 is in contact with the front of the photovoltaic laminate 20, the opening size of the flow channel 12 is relatively small (generally less than 1mm) when there is water accumulation on the front of the photovoltaic laminate 20. The specific size only needs to allow the flow channel to achieve capillary absorption. In this way, the flow channel 12 can absorb the water accumulation on the front of the photovoltaic laminate 20 under capillary absorption, allowing it to converge and drain out of the frame 10 along the flow channel 12. This prevents water from accumulating on the front of the photovoltaic laminate 20, improving the power generation efficiency and output of the photovoltaic module.

[0033] It is conceivable that, in order to make it easier for water to enter the diversion channel 12, a bevel that tilts and guides the water towards the front of the photovoltaic laminate 20 can be provided at the opening of the diversion channel 12.

[0034] Furthermore, the drainage channel 12 in this application is directly set on the frame 10, eliminating the need for additional drainage components and making the overall structure of the photovoltaic module more compact and easier to install. Compared to existing drainage tools that are independent of the frame 10, the drainage structure in this application will not shift from the frame 10 and will not obstruct the front of the photovoltaic laminate 20, thus reducing the impact of external factors on drainage performance and power generation efficiency.

[0035] In this embodiment, the flow channel 12 is defined as the inlet end on one side of the front of the photovoltaic laminate 20 and the outlet end on the other side. The outlet end of the flow channel 12 can directly penetrate the body of the frame 10 and connect with the outside. It should be noted that in order to ensure smooth and fast drainage, the inlet end of the flow channel 12 should be set higher than the outlet end during installation, and the outlet end can be set on the side of the frame 10 or the bottom surface of the frame 10.

[0036] Furthermore, in actual installation, this application can provide a drain hole 13 on the frame 10, with one end of the guide channel 12 connected to the drain hole 13. During use, the drain hole 13 can be positioned at different locations on the frame 10, allowing the guide channel 12 to connect with the drain hole 13. This facilitates changing the flow direction of water within the guide channel 12, enabling accumulated water in the guide channel 12 to drain from different positions on the frame 10, thus providing greater flexibility in use.

[0037] In one embodiment of this utility model, the frame 10 is provided with a corner code groove 14, and a drainage hole 13 is opened at the bottom of the corner code groove 14. One end of the guide channel 12 is connected to the corner code groove 14.

[0038] One embodiment of this application includes a mounting groove 11 comprising a support plate 114 opposite to a top plate 112 and a side plate 113 connecting the top plate 112 and the support plate 114. A drainage channel 12 passes through the top plate 112 and the side plate 113. Since the drainage channel 12 in this application is located on the frame 10, it is inevitable that the drainage channel 12 needs to have corners to adapt to the structure of the frame 10. To ensure better drainage, a smooth transition is made at the corners. Of course, in use, to ensure the drainage effect of accumulated water, the number of corners in the drainage channel 12 should be as small as possible, where space permits.

[0039] See appendix Figure 3 In one embodiment of this application, the drainage holes 13 are spaced apart along the length of the frame 10. This gives the frame 10 multiple drainage positions along its length, improving drainage efficiency. In actual installation, the spacing between adjacent drainage holes 13 can be set to 5-30 cm.

[0040] See appendix Figure 2In one embodiment of this utility model, the flow channel 12 penetrates the frame 10 along its length. The flow channel 12 is distributed throughout its entire length, increasing the length of the flow channel 12 covering the front of the photovoltaic laminate 20, thus providing a larger contact area between the flow channel 12 and the accumulated water and improving drainage efficiency. Of course, this structural design can also, to some extent, prevent water accumulation on the front of the photovoltaic module caused by blockage of the flow channel 12. When a local area of ​​the flow channel 12 is blocked, the accumulated water will flow along the front of the photovoltaic module to the unblocked area for drainage.

[0041] Furthermore, this structural design allows the flow channel 12 and the frame 10 to be integrally formed during production. Specifically, a mold conforming to the shape of the flow channel 12 is set on the blank and then integrally formed with the frame 10. After the frame 10 is formed, the mold is removed to form the flow channel 12, facilitating the processing of the flow channel 12. Of course, to ensure that the size of the opening meets the capillary absorption requirements and to consider the mold life in the actual production process, when the flow channel 12 and the frame 10 are integrally formed, the opening can be initially set as a closed structure. After integral forming, the opening can be machined at the top plate 112 of the frame 10 by machining or laser cutting.

[0042] Of course, it is conceivable that the flow channel 12 can also be set in a structure with multiple segments spaced apart from each other in the length direction of the frame 10, so as to improve the overall strength of the frame 10 while ensuring the drainage function.

[0043] In one embodiment of this utility model, the opening of the drainage channel 12 near the photovoltaic laminate 20 has a height difference with the front surface of the photovoltaic laminate 20. Since rainwater typically contains dust or other impurities during actual use, when water accumulates at the opening of the drainage channel 12, if the opening of the drainage channel 12 directly contacts the front surface of the photovoltaic laminate 20, dust or impurities can easily clog the drainage channel 12, thus affecting drainage performance. By setting a certain height difference between the opening of the drainage channel 12 and the front surface of the photovoltaic laminate 20, dust and impurities in the accumulated water are blocked by the frame 10 at this height difference during use, preventing them from entering the drainage channel 12 under capillary action, thus avoiding clogging and improving drainage performance. It should be noted that this height difference must ensure that accumulated water can enter the drainage channel 12 under capillary action; in actual design, this height difference is designed to be 1-2 mm.

[0044] To further prevent blockage of the flow channel 12 during use, a filter screen is provided at the end of the flow channel 12 near the photovoltaic laminate 20.

[0045] One embodiment of this application also discloses a mounting frame for fixing photovoltaic modules, wherein at least one frame 10 of the mounting frame adopts the frame 10 structure described above. The mounting frame in this application also includes a plurality of corner bracket connectors, and adjacent sides of the mounting frame are connected by the corner bracket connectors.

[0046] The mounting frame is generally a rectangular structure with four borders 10. In this embodiment, the number of borders 10 with drainage channels 12 can be one, two, three, or four. It is foreseeable that the more borders 10 with drainage channels 12 on the same mounting frame, the better the drainage effect.

[0047] When there are two borders 10 with flow channels 12, these two borders 10 can be set relative to each other or adjacent to each other.

[0048] See appendix Figure 4 ,and Figure 5 One embodiment of this application also discloses a photovoltaic module, including a photovoltaic laminate 20, wherein the photovoltaic laminate includes a front glass, a back glass, and a battery encapsulated between the front glass and the back glass. The photovoltaic module also includes any of the above-mentioned mounting frames. The photovoltaic laminate 20 includes multiple sides corresponding to multiple frames 10 of the mounting frame. In specific installation, one of the frames 10 with the flow channel 12 is at the lowest position when the photovoltaic module is installed, and water accumulated on the front of the photovoltaic laminate 20 can enter the flow channel 12 under the action of capillary water absorption.

[0049] In this embodiment, during the assembly of the photovoltaic module, the side of the photovoltaic laminate 20 extends into the mounting groove 11 of the corresponding frame 10, and an adhesive (generally silicone) is injected into the mounting groove 11 to connect the frame 10 and the photovoltaic laminate 20. Since one end of the top plate 112 of the frame 10 with the flow channel 12 is in contact with the front of the photovoltaic laminate 20, the top plate 112 can support the photovoltaic laminate 20, improving the overall strength of the photovoltaic module. Moreover, the contact between the top plate 112 and the front of the photovoltaic laminate 20 also makes the top plate 112 act as a sealant at the contact point, preventing the adhesive from flowing onto the front of the glass during the installation process and preventing the adhesive from clogging the flow channel 12.

[0050] As can be seen, in this embodiment, the mounting frame of the photovoltaic module has an A-side structure that is higher than the photovoltaic laminate 20. (See attached diagram) Figure 4Compared to the existing frame structure without an A-side, this design offers better mechanical load performance. Furthermore, since at least one frame 10 of the mounting frame has the aforementioned flow channel 12, it ensures both the mechanical load performance of the photovoltaic module and drainage efficiency. Additionally, because the flow channel 12 is directly mounted on the frame 10, the front of the photovoltaic laminate 20 has no other coverings besides the frame 10, ensuring sufficient area for sunlight to be received and improving power generation efficiency. Moreover, the drainage structure (flow channel 12) will not detach from or shift from the frame 10 due to external factors (such as strong winds), ensuring a more stable drainage effect.

[0051] In addition, it should be noted that since there are multiple options for the number of frames 10 with the above-mentioned flow channels 12 on the mounting frame (1, 2, 3 or 4), when the photovoltaic module is actually installed (tilted installation), it is necessary to ensure that the frame 10 at the lowest point has a flow channel 12. In this way, the water will flow downward under its own gravity and can be discharged at least by the flow channel 12 on the lower frame 10.

[0052] In a preferred embodiment of this utility model, all four frames 10 have drainage channels 12. In this case, there are no special installation requirements for the photovoltaic modules, and the accumulated water can be discharged at all four frames 10 of the mounting frame, resulting in better drainage.

[0053] The photovoltaic modules of this invention are generally installed at an angle optimal for local conditions, see appendix. Figure 5 In this application, the front side of the photovoltaic laminate 20 faces the direction of sunlight. In actual installation, the frame 10 with the flow channel 12 is suitable for installation at a low position.

[0054] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Those skilled in the art should understand that this application includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this application will be included within the scope of the claims.

Claims

1. A frame, wherein the frame (10) is provided with a mounting groove (11) for fixing a photovoltaic laminate, the mounting groove (11) comprising a groove (111) for accommodating the edge of a photovoltaic laminate (20) and a top plate (112) located on the upper part of the photovoltaic laminate (20), characterized in that, One end of the top plate (112) is in contact with the front of the photovoltaic laminate (20) and has a flow channel (12). The other end of the flow channel (12) passes through the frame (10) and is connected to the outside, so that the liquid on the front of the photovoltaic laminate (20) can enter the flow channel (12) under the capillary action.

2. The frame as described in claim 1, characterized in that, The frame (10) is provided with a drain hole (13), and one end of the flow channel (12) is connected to the drain hole (13).

3. The frame as described in claim 2, characterized in that, The frame (10) is provided with a corner code groove (14), and the bottom of the corner code groove (14) is provided with a drainage hole (13). One end of the flow channel (12) is connected to the corner code groove (14).

4. The frame as described in claim 3, characterized in that, The drainage holes (13) are arranged at intervals along the length of the frame (10).

5. The frame as described in claim 1, characterized in that, The flow channel (12) extends through the frame (10) along its length.

6. The frame as described in claim 1, characterized in that, There is a height difference between the inlet end of the flow channel (12) and the front side of the photovoltaic laminate (20).

7. The border as described in any one of claims 1 to 6, characterized in that, A filter screen is provided at the opening of the flow channel (12) near the photovoltaic laminate (20).

8. A mounting frame for fixing a photovoltaic laminate (20), characterized in that, The mounting frame includes a plurality of borders (10), and at least one border (10) adopts the border as described in any one of claims 1-7.

9. The mounting frame as described in claim 8, characterized in that, It also includes multiple corner bracket connectors for connecting adjacent borders (10) on the mounting frame.

10. A photovoltaic module, comprising a photovoltaic laminate (20), characterized in that, It also includes the mounting frame as described in claim 8 or 9, wherein one of the frame (10) having the flow channel (12) is in the lowest position when the photovoltaic module is installed, and liquid on the front of the photovoltaic laminate (20) can enter the flow channel (12) by capillary action.

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