Frame structure and photovoltaic module
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 通威太阳能(盐城)有限公司
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-14
Smart Images
Figure CN224503271U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of solar cell technology, and in particular to a frame structure and photovoltaic module. Background Technology
[0002] Currently, photovoltaic modules primarily use aluminum alloy frames as the carrier of mechanical loads. The processing of aluminum alloy frames involves two main steps: extrusion (melting aluminum and other metal components and extruding them from a mold to form the frame structure) and machining (punching drainage holes on the frame, cutting off excess edges, etc.). During machining, the ends of both long and short frames are cut at 45° to facilitate assembly.
[0003] According to the appearance characteristics of the frame, it is divided into A-side, B-side, C-side, D-side, E-side, etc. The space enclosed by B, C, D, E-sides is called the frame cavity. After the laminate is prepared, it enters the frame assembly process. First, glue (usually silicone) is applied to the E-side of the frame and the bottom of the glue application tank. When the frame is assembled, the silicone on the glued E-side and the bottom of the glue application tank will flow in different directions when squeezed by the laminate.
[0004] Of the silicone, the silicone flowing towards the outer side of side A is contained in the overflow channel and will not easily flow out of side A. Because there is no space to contain it on side E, the silicone will be squeezed out of side E and overflow onto the back glass surface. This indirectly indicates the amount of silicone, which perfectly meets the design requirements. During actual frame assembly, the silicone will flow towards the beginning and end of the long and short frames, resulting in overflow at the four corners of the photovoltaic module. If silicone flows out from the gaps, it will contaminate the production line.
[0005] Currently, the method to improve the problem of excess adhesive at the four corners is to set a pre-existing distance for adhesive application. For example, to prevent excess adhesive from flowing out at the beginning and end of the frame, a 3-8mm gap is actually left without applying silicone sealant, the purpose of which is to minimize the amount of silicone sealant flowing out of the frame gaps. However, when process control is insufficient, it can actually result in insufficient adhesive inside the four corners of the photovoltaic module, and visually, there may be no adhesive at the four corners on the back of the module, affecting the product quality of the photovoltaic module. Utility Model Content
[0006] Therefore, it is necessary to address the issue of insufficient adhesive at the four corners of photovoltaic modules due to excess adhesive when using pre-reserved adhesive application distances in the current photovoltaic module frame design. This would provide a frame structure and photovoltaic module that can prevent adhesive from entering the production line, thus avoiding adhesive contamination. At the same time, it can also prevent insufficient adhesive at the four corners of the photovoltaic module, ensuring the product quality of the photovoltaic module.
[0007] A border structure includes four supporting borders and four corner brackets. One end of each supporting border is connected to one end of another supporting border through one of the corner brackets. The four supporting borders and the four corner brackets are connected sequentially to form a quadrilateral structure.
[0008] At least one end of the support frame has a flow guide hole, the corner bracket has a receiving cavity, and after the corner bracket is installed on the support frame, the flow guide hole communicates with the receiving cavity.
[0009] In one embodiment of this application, the support frame has a first cavity and a second cavity, the first cavity being capable of accommodating colloid to bond and fix the edge of the laminate in the photovoltaic module;
[0010] The second cavity is used to install the corner bracket, and the guide hole connects the first cavity and the second cavity so that the receiving cavity of the corner bracket in the first cavity and the second cavity are connected.
[0011] In one embodiment of this application, the supporting frame further includes a partition plate that divides the supporting frame into the first cavity and the second cavity;
[0012] The flow guide hole is disposed through the partition plate to connect the first cavity and the second cavity.
[0013] In one embodiment of this application, the flow guide hole has a flow guide wall and a blocking wall, and the flow guide wall and the end of the adjacent support frame surround the flow guide hole;
[0014] The blocking wall is disposed toward the adjacent support frame and is used to block the colloid so that the colloid can flow into the receiving cavity through the guide hole.
[0015] In one embodiment of this application, the guide hole further has a guide surface, which is inclinedly disposed at the edge of the guide hole to guide the colloid into the guide hole;
[0016] The guiding surface is an arc-shaped surface or an inclined surface.
[0017] In one embodiment of this application, the guide hole is a semi-circular hole, a right-angled hole, or the inner wall of the guide hole is a straight line splicing type, a curved splicing type, or a straight line and curved line splicing type;
[0018] And / or, the opening size of the guide hole is less than or equal to the opening size of the receiving cavity.
[0019] In one embodiment of this application, the flow guide hole extends through to the end of the support frame;
[0020] Alternatively, each of the supporting frames has a flow guide hole at one end, and two adjacent supporting frames share one flow guide hole;
[0021] Alternatively, each of the supporting frames has a flow guide hole at both ends, and the flow guide holes at both ends of the same supporting frame may have the same or different shapes;
[0022] Alternatively, each of the supporting frames has a flow guide hole at both ends, and the flow guide holes at the connection of two adjacent supporting frames have the same shape.
[0023] In one embodiment of this application, the corner bracket includes a first mounting portion and a second mounting portion, wherein the first mounting portion and the second mounting portion are arranged perpendicularly;
[0024] The connection between the first mounting part and the second mounting part is connected to form the receiving cavity, which is directly connected to the guide hole.
[0025] In one embodiment of this application, the corner bracket further includes a reinforcing rib, which is disposed in the receiving cavity and connected to the inner wall of the receiving cavity. The reinforcing rib avoids the guide hole, or the receiving cavity does not have the reinforcing rib at the guide hole.
[0026] The reinforcing ribs are in the form of straight lines, arcs, straight line splices, curved splices, or straight lines and curves splices.
[0027] A photovoltaic module includes a laminate and a frame structure as described in any of the above technical features;
[0028] The laminate includes at least a cover plate, a back plate, and a plurality of solar cell strings disposed between the cover plate and the back plate, wherein the plurality of solar cell strings are connected in parallel and / or in series.
[0029] The frame structure is installed on the edge of the laminate.
[0030] By adopting the above technical solution, this application has at least the following technical effects:
[0031] The frame structure and photovoltaic module of this application, in which one end of each supporting frame is connected to an adjacent supporting frame via a corner bracket, and so on, four supporting frames and four corner brackets are connected sequentially to form a quadrilateral frame structure. At least one end of at least some of the supporting frames has a flow guide hole, and the corner bracket has a receiving cavity. After the corner bracket is installed on the supporting frame, the flow guide hole can communicate with the receiving cavity.
[0032] This frame structure features a guide hole at at least one end of at least a portion of the supporting frame. This allows the cavity of the supporting frame to connect to the receiving cavity of the corner bracket via the guide hole. When excess adhesive in the supporting frame flows towards its end, it can enter the receiving cavity of the corner bracket through the guide hole. Excess adhesive in the supporting frame will not enter the production line through the gaps between adjacent supporting frames, thus preventing contamination of the production line and subsequent photovoltaic modules. This eliminates the need for pre-reserved adhesive application distances to address adhesive overflow at the four corners of the photovoltaic module, ensuring sufficient adhesive at all four corners and preventing insufficient adhesive at these corners, thereby guaranteeing product quality. Attached Figure Description
[0033] Figure 1 This is a partial part view of the border structure of an embodiment of this application.
[0034] Figure 2 for Figure 1 The shown border structure is a partial part drawing from another perspective.
[0035] Figure 3 for Figure 1 The enlarged view of the border structure shown at point A.
[0036] Figure 4 for Figure 3 A partial schematic diagram of the supporting frame structure shown.
[0037] Figure 5 for Figure 2 The diagram shows a partial view of the border structure at point B.
[0038] Figure 6 for Figure 5 A partial schematic diagram of the supporting frame structure shown.
[0039] Figure 7 for Figure 1 The side view of the supporting frame in the frame structure shown.
[0040] Figure 8 for Figure 7 The diagram shows the application of adhesive in the support frame.
[0041] Figure 9 for Figure 3 The diagram shows an embodiment of the corner bracket in the border structure.
[0042] Figure 10 for Figure 9 A schematic diagram of another embodiment of the corner bracket shown.
[0043] Figure 11 for Figure 9The corner bracket shown is a schematic diagram of one embodiment.
[0044] Wherein: 100, frame structure; 110, supporting frame; 111, guide hole; 1111, guide wall; 1112, blocking wall; 1113, guide surface; 112, first surface; 113, second surface; 114, third surface; 115, fourth surface; 116, fifth surface; 117, first cavity; 118, second cavity; 119, partition plate; 120, corner bracket; 121, receiving cavity; 122, first mounting part; 123, second mounting part; 124, reinforcing rib; 200, laminate; 210, cover plate; 220, back plate. Detailed Implementation
[0045] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0046] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0047] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0049] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0050] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0051] Understandably, photovoltaic modules primarily use aluminum alloy frames as the carrier of mechanical loads. During machining, the beginning and end of the long and short frames are cut at 45° to facilitate assembly. Adhesive is applied into the cavities of the long and short frames. During frame assembly, the silicone in the long and short frames is squeezed by the laminating components and flows towards the beginning and end of the frames, causing adhesive overflow at the four corners of the photovoltaic module. If silicone leaks from the gaps, it will contaminate the production line.
[0052] Currently, the method to improve the problem of excess adhesive at the four corners is to set a pre-existing distance for adhesive application. For example, to prevent excess adhesive from flowing out at the beginning and end of the frame, a 3-8mm gap is actually left without applying silicone sealant, the purpose of which is to minimize the amount of silicone sealant flowing out of the frame gaps. However, when process control is insufficient, it can actually result in insufficient adhesive inside the four corners of the photovoltaic module, and visually, there may be no adhesive at the four corners on the back of the module, affecting the product quality of the photovoltaic module.
[0053] For this purpose, please refer to Figure 1 and Figure 2 This application provides a border structure 100. Figure 1 This is a partial part view of the border structure 100 according to an embodiment of this application. Figure 2 for Figure 1 The diagram shows a partial view of the frame structure 100 from another perspective. This frame structure 100 is used in a photovoltaic module (not shown) as the frame of the photovoltaic module, capable of withstanding mechanical loads to improve the structural strength of the photovoltaic module.
[0054] To better illustrate the specific structure of the frame structure 100, the structure of the photovoltaic module is briefly described here. The photovoltaic module includes a laminate 200 and the photovoltaic module of this application. The laminate 200 includes a cover plate 210, a back sheet 220, and multiple solar cell strings (not shown), such as... Figure 8 As shown, multiple solar cell strings are connected in series and / or in parallel. The cover plate 210 and the back plate 220 are disposed on both sides of the multiple solar cell strings. The cover plate 210, the multiple solar cell strings and the back plate 220 are laminated and encapsulated into a laminate 200 using a lamination encapsulation process.
[0055] The laminate 200, as an integral structure, is assembled with the frame structure 100 to form a photovoltaic module. Specifically, the frame structure 100 is installed at the edge of the laminate 200, protecting the laminate 200 from damage and ensuring the performance of the photovoltaic module. Simultaneously, the frame structure 100 is coated with adhesive to ensure the airtightness of the laminate 200, preventing moisture from entering the inside of the laminate 200 and ensuring the reliability of the photovoltaic module's operation.
[0056] It is worth noting that the focus of this application is on the frame structure 100. The structure and working principle of the laminate 200 and the assembly process of the laminate 200 and the frame structure 100 are not the focus of this application and will not be elaborated on later. Only the example of the edge of the laminate 200 being installed on the frame structure 100 will be used for explanation.
[0057] The frame structure 100 of this application can improve the problem of adhesive overflow at the four corners of photovoltaic modules and prevent the adhesive from entering the production line, thereby avoiding adhesive contamination of the production line. At the same time, it can also ensure that there is enough adhesive at the four corners of the photovoltaic modules, avoiding the situation of insufficient adhesive at the four corners of the photovoltaic modules and ensuring the product quality of the photovoltaic modules.
[0058] The following describes the specific structure of the border structure 100 in some embodiments.
[0059] See Figures 1 to 8In one embodiment, the frame structure 100 includes four supporting frames 110 and four corner brackets 120. One end of each supporting frame 110 is connected to one end of another supporting frame 110 via a corner bracket 120. The four supporting frames 110 and the four corner brackets 120 are sequentially connected to form a quadrilateral structure. At least one end of at least some of the supporting frames 110 has a flow guide hole 111, and the corner bracket 120 has a receiving cavity 121. After the corner bracket 120 is installed on the supporting frame 110, the flow guide hole 111 communicates with the receiving cavity 121. Figure 3 for Figure 1 The enlarged view of the border structure 100 at point A is shown. Figure 4 for Figure 3 A partial schematic diagram of the supporting frame 110 in the frame structure 100 shown. Figure 5 for Figure 2 The diagram shows a partial view of the border structure 100 at point B. Figure 6 for Figure 5 A partial schematic diagram of the supporting frame 110 in the frame structure 100 shown. Figure 7 for Figure 1 The side view of the supporting frame 110 in the frame structure 100 shown. Figure 8 for Figure 7 The diagram shows the adhesive coating on the support frame 110.
[0060] The border structure 100 is a quadrilateral structure. Specifically, one end of each supporting border 110 is connected to one end of the adjacent supporting border 110 via a corner bracket 120. The four supporting borders 110 are connected sequentially via corner brackets 120, and the four supporting borders 110 can be arranged to form a quadrilateral structure, which is the border structure 100 of this application. Figure 1 and Figure 2 In the shown frame structure 100, only a schematic diagram is shown of corner brackets 120 installed at both ends of a support frame 110. The connection forms of the remaining support frames 110 and corner brackets 120 are essentially the same. The other three support frames 110 and two corner brackets 120 are omitted here.
[0061] Furthermore, the four supporting frames 110 include two long frames and two short frames. Each long frame is connected to the two short frames at both ends by two corner brackets 120. The two long frames are arranged opposite each other to form a rectangular frame structure 100, which serves as the frame of the photovoltaic module. It is worth noting that the long frames and short frames have essentially the same structure, only their lengths differ. When describing the specific structure of the frame structure 100 later, the supporting frames 110 will be used to represent the long and short frames.
[0062] Of the four support frames 110, at least one end of at least a portion of the support frame 110 is provided with a flow guide hole 111, which allows the colloid to flow. The corner bracket 120 is hollow, and its inner cavity is a receiving cavity 121. After the corner bracket 120 is installed at the end of the support frame 110, the flow guide hole 111 communicates with the receiving cavity 121 of the corner bracket 120. When the colloid in the support frame 110 flows toward both ends of the support frame 110, the colloid can enter the receiving cavity 121 of the corner bracket 120 through the flow guide hole 111 and be received in the receiving cavity 121.
[0063] When the support frame 110 and the laminate 200 are assembled, the support frame 110 is coated with adhesive. The edge of the laminate 200 is installed into the support frame 110, and the laminate 200 squeezes the adhesive in the support frame 110, causing the adhesive to flow to both ends of the support frame 110. Since at least one end of the support frame 110 is provided with a guide hole 111, if the adhesive flows to the end of the support frame 110, the adhesive can flow through the guide hole 111 into the receiving cavity 121 of the corner bracket 120, where the receiving cavity 121 collects the excess adhesive. In this way, the adhesive will not flow out through the gap between the two support frames 110, and thus the adhesive will not flow into the production line, avoiding contamination of the production line by the adhesive.
[0064] This method of applying adhesive allows for application to the entire support frame 110 without the need for a pre-reserved adhesive application distance at the ends of the support frame 110. This improves the problem of adhesive overflow at the four corners of the photovoltaic module. At the same time, it ensures that there is sufficient adhesive in the support frame 110 to effectively seal the laminate 200, improving the problem of insufficient adhesive inside the four corners of the photovoltaic module and ensuring the product quality of the photovoltaic module. Furthermore, eliminating the need for a pre-reserved adhesive application area also improves the adhesive application efficiency of the support frame 110, thereby increasing the frame assembly efficiency.
[0065] To better illustrate the function of the guide hole 111, this section combines... Figure 7 and Figure 8 The various surfaces of the support frame 110 illustrate the flow of the colloid. The support frame 110 is divided into a first surface 112, a second surface 113, a third surface 114, a fourth surface 115, and a fifth surface 116 according to its appearance. These surfaces correspond to surfaces A, B, C, D, and E in the background art: surface 112 is surface A, surface 113 is surface B, surface 114 is surface C, surface 115 is surface D, and surface 116 is surface E. After applying the colloid to the support frame 110, the colloid resides in the cavity formed by surfaces 112, 113, and 116. A flow guide hole 111 is provided on surface 116.
[0066] When the laminate 200 is installed onto the support frame 110, the laminate 200 can compress the adhesive in the support frame 110, causing the adhesive to flow in different directions. For example... Figure 7 and Figure 8 As shown, the colloid can flow along the L1 direction on the first surface 112. Because the first surface 112 has an overflow groove, the colloid can be contained through the overflow groove, preventing the colloid from flowing outside the first surface 112. Because the second surface 113 does not have an overflow groove, when the colloid flows along the L2 direction, the colloid will be squeezed to the outside of the second surface 113 and overflow onto the surface of the back plate 220 to ensure sufficient colloid quantity.
[0067] Meanwhile, the colloid in the support frame 110 can also flow towards both ends of the support frame 110 along the L3 direction. At this time, the colloid can enter the receiving cavity 121 of the corner bracket 120 through the guide hole 111. The receiving cavity 121 receives the colloid flowing towards the end of the support frame 110, so as to prevent the colloid from flowing into the production line from the gap at the connection of the two support frames 110, thereby avoiding contamination of the production line.
[0068] In the frame structure 100 of the above embodiment, a guide hole 111 is provided at least at one end of at least a portion of the supporting frame 110. This allows the cavity of the supporting frame 110 to connect to the receiving cavity 121 of the corner bracket 120 via the guide hole 111. When excess adhesive in the supporting frame 110 flows towards its end, the adhesive can enter the receiving cavity 121 of the corner bracket 120 through the guide hole 111. Excess adhesive in the supporting frame 110 will not enter the production line through the gap between adjacent supporting frames 110, thus avoiding contamination of the production line and subsequently, preventing adhesive contamination of subsequent photovoltaic modules. This eliminates the need for pre-reserved adhesive application distance to address the issue of adhesive overflow at the four corners of the photovoltaic module, ensuring sufficient adhesive at the four corners and preventing insufficient adhesive at the corners, thereby guaranteeing the product quality of the photovoltaic module.
[0069] See Figures 3 to 6 In one embodiment, the flow guide hole 111 extends to the end of the support frame 110. That is, the flow guide hole 111 has a notch structure at the end of the support frame 110. It can be understood that the end of the support frame 110 is a 45° inclined bevel to facilitate mating and assembly between the support frame 110 and adjacent support frames 110. The flow guide hole 111 is disposed on the inclined bevel of the support frame 110 and has a notch structure.
[0070] In this way, after the laminate 200 compresses the adhesive, the adhesive can flow to the edge of the support frame 110 before entering the guide hole 111, ensuring sufficient adhesive at the corners of the support frame 110 and preventing insufficient adhesive at the four corners of the photovoltaic module. Simultaneously, when two support frames 110 are joined together, the bevel of one support frame 110 can form the edge of the guide hole 111 on the other support frame 110. Thus, the adhesive in both support frames 110 can flow through the guide hole 111 into the receiving cavity 121 of the corner bracket 120 connecting the two support frames 110.
[0071] See Figures 1 to 6 In one embodiment of this application, each support frame 110 has a flow guide hole 111 at both ends. That is, each support frame 110 has a flow guide hole 111 at both ends, i.e., the four frames have eight flow guide holes 111. In this way, the support frame 110 can flow into the receiving cavity 121 of the corner bracket 120 through the corresponding flow guide hole 111, preventing the colloid from leaking from the edges of the two support frames 110 and flowing into the production line.
[0072] See Figures 3 to 6 In one embodiment, the guide holes 111 at both ends of the same support frame 110 may have the same or different shapes. When both ends of the support frame 110 have guide holes 111, the shapes of the guide holes 111 at both ends of the support frame 110 may be the same or different. This will be explained later.
[0073] See Figures 3 to 6 In one embodiment, the guide holes 111 at the connection of two adjacent support frames 110 have the same shape. That is, the guide holes 111 at the joint of two adjacent support frames 110 have the same shape, so as to facilitate matching after the two support frames 110 are joined.
[0074] Of course, in other embodiments of this application, each support frame 110 has a flow guide hole 111 at one end, and two adjacent support frames 110 share one flow guide hole 111. That is, each support frame 110 has one flow guide hole 111 at one end, and the four support frames 110 have four flow guide holes 111. In this way, when two support frames 110 are joined together, the adhesive of one support frame 110 can flow into the flow guide hole 111 of the other support frame 110, thus also allowing excess adhesive in the support frame 110 to flow into the receiving cavity 121.
[0075] See Figures 1 to 8In one embodiment, the support frame 110 has a first cavity 117 and a second cavity 118. The first cavity 117 can accommodate adhesive to bond and fix the edge of the laminate 200 in the photovoltaic module. The second cavity 118 is used to install corner brackets 120. A guide hole 111 connects the first cavity 117 and the second cavity 118 so that the receiving cavity 121 of the corner bracket 120 in the first cavity 117 and the second cavity 118 is connected.
[0076] The supporting frame 110 is hollow and has two cavities: a first cavity 117 and a second cavity 118. Figure 7 and Figure 8 In this structure, the first surface 112, the second surface 113, and the fifth surface 116 form a first cavity 117, which can accommodate the colloid. The second surface 113, the third surface 114, the fourth surface 115, and the fifth surface 116 form a second cavity 118 for mounting the corner bracket 120. A flow guide hole 111 is provided on the fifth surface 116 and located at the end of the supporting frame 110. The flow guide hole 111 connects the first cavity 117 and the second cavity 118, and the corner bracket 120 is installed in the second cavity 118. Due to the design of the flow guide hole 111, the first cavity 117 can communicate with the receiving cavity 121 of the corner bracket 120 in the second cavity 118 through the flow guide hole 111.
[0077] When applying adhesive to the support frame 110, the adhesive is injected into the first cavity 117. The edge of the laminate 200 is installed into the first cavity 117. The laminate 200 can squeeze the adhesive in the first cavity 117, causing the adhesive to flow along the L1 and L2 directions. At the same time, the adhesive can also flow along the L3 direction towards both ends of the support frame 110. The adhesive in the first cavity 117 can enter the receiving cavity 121 of the corner bracket 120 through the guide hole 111, and the receiving cavity 121 collects the excess adhesive.
[0078] See Figures 3 to 6 In one embodiment, the supporting frame 110 further includes a partition plate 119, which divides the supporting frame 110 into a first cavity 117 and a second cavity 118. A guide hole 111 is disposed through the partition plate 119 to connect the first cavity 117 and the second cavity 118. The partition plate 119 is the plate forming the fifth surface 116 in the supporting frame 110, and it divides the inner cavity of the supporting frame 110 into the first cavity 117 and the second cavity 118.
[0079] A flow guide hole 111 is provided at the end of the partition plate 119 and extends through the partition plate 119. In this way, the flow guide hole 111 can connect the first cavity 117 and the second cavity 118. When the edge of the laminate 200 is installed into the first cavity 117, the laminate 200 can squeeze the colloid in the first cavity 117. The colloid can flow along the L3 direction toward both ends of the supporting frame 110. The colloid in the first cavity 117 can enter the receiving cavity 121 of the corner bracket 120 through the flow guide hole 111, and the receiving cavity 121 can collect the excess colloid.
[0080] See Figures 3 to 6 In one embodiment, the flow guide hole 111 has a flow guide wall 1111 and a blocking wall 1112. The flow guide wall 1111 and the end of the adjacent support frame 110 surround the flow guide hole 111. The blocking wall 1112 is disposed toward the adjacent support frame 110 and is used to block the colloid so that the colloid can flow into the receiving cavity 121 through the flow guide hole 111.
[0081] The inner wall of the flow guide hole 111 is divided into a flow guide wall 1111 and a blocking wall 1112. When two adjacent support frames 110 are joined, the inclined side of the other support frame 110 can form the flow guide hole 111 with the flow guide wall 1111 and the blocking wall 1112. Furthermore, the blocking wall 1112 is designed to face the inclined side of the other support frame 110. The blocking wall 1112 can block the flow, thereby limiting the flow of the colloid and preventing the colloid from flowing into the gap between the two support frames 110.
[0082] After the laminate 200 is installed into the first cavity 117, the laminate 200 can squeeze the colloid to flow towards both ends of the supporting frame 110, such as... Figure 3 As shown, the colloid first flows into the guide hole 111 along the solid arrow in the first cavity 117. Then, a portion of the colloid comes into contact with the barrier wall 1112. At this time, the barrier wall 1112 can block the colloid, causing it to flow into the receiving cavity 121 along the dashed arrow. In this way, the colloid is prevented from flowing into the gap between the two supporting frames 110, thus preventing the colloid from leaking into the production line.
[0083] See Figures 3 to 6 In one embodiment, the guide hole 111 further has a guide surface 1113, which is inclinedly disposed at the edge of the guide hole 111 to guide the colloid into the guide hole 111. The fifth surface 116 of the supporting frame 110 (the inner wall of the first cavity 117) is provided with a chamfered guide surface 1113 at the edge of the guide hole 111, and the cross-sectional size of the guide surface 1113 gradually decreases along the flow direction of the colloid.
[0084] In other words, the guide surface 1113 is an flared structure of the guide hole 111. The flared structure of the guide surface 1113 can guide the flow of the colloid, making it easier for the colloid in the first cavity 117 to flow into the guide hole 111, and then facilitate the colloid to flow into the receiving container of the corner bracket 120.
[0085] See Figures 3 to 6 In this embodiment, the guiding surface 1113 is an arc-shaped surface. That is, the guiding surface 1113 is formed by rounded chamfering. In this way, the arc-shaped guiding surface 1113 can guide the colloid, so that the colloid flows into the guiding hole 111 and then into the receiving cavity 121 of the corner bracket 120. Of course, in other embodiments of this application, the guiding surface 1113 is an inclined surface, that is, the guiding surface 1113 is formed by straight chamfering.
[0086] See Figure 3 and Figure 4 In one embodiment, the guide hole 111 is a semi-circular hole. That is, the guide hole 111 is semi-circular. In this way, the semi-circular guide hole 111 can guide the colloid in the first cavity 117 into the receiving cavity 121 of the corner bracket 120. At the same time, it can also block the colloid to improve the flow direction of the colloid and prevent the colloid from flowing into the gap between the two support frames 110, thereby minimizing the amount of colloid flowing out of the support frames 110 and contaminating the production line.
[0087] See Figure 5 and Figure 6 In one embodiment, the guide hole 111 is a right-angled hole. That is, the guide hole 111 is right-angled. In other words, the guide hole 111 is right-angled. In this way, the right-angled guide hole 111 can guide the colloid in the first cavity 117 into the receiving cavity 121 of the corner bracket 120. At the same time, it can also block the colloid to improve the flow direction of the colloid and prevent the colloid from flowing into the gap between the two support frames 110, thereby minimizing the amount of colloid flowing out of the support frames 110 and contaminating the production line.
[0088] Of course, in other embodiments of this application, the inner wall of the guide hole 111 is a straight-line splicing type, a curved splicing type, or a straight-line and curved splicing type. That is to say, the shape of the guide hole 111 is not limited in principle, and can be a regular shape or an irregular shape, as long as it can guide the colloid in the first cavity 117 into the receiving cavity 121 of the corner bracket 120.
[0089] See Figures 1 to 6In one embodiment of this application, the guide hole 111 at one end of the support frame 110 is a semi-circular hole, and the guide hole 111 at the other end is a right-angled hole. Of course, in other embodiments of this application, the guide holes 111 at both ends of the support frame 110 may also be semi-circular holes or right-angled holes, or the guide holes 111 at both ends of the support frame 110 may also be other similar or different shapes.
[0090] See Figures 3 to 6 In one embodiment, the opening size of the guide hole 111 is less than or equal to the opening size of the receiving cavity 121. That is, the opening size of the guide hole 111 on the fifth surface 116 is limited, requiring that the opening size of the guide hole 111 does not exceed the width of the receiving cavity 121. In this way, it can be ensured that the colloid in the guide hole 111 flows accurately into the receiving cavity 121 of the corner bracket 120, and prevent the colloid from flowing to the outside of the corner bracket 120 and overflowing the support frame 110.
[0091] See Figure 3 , Figure 5 , Figures 8 to 11 In one embodiment, the corner bracket 120 includes a first mounting portion 122 and a second mounting portion 123, which are arranged perpendicularly. The connection between the first mounting portion 122 and the second mounting portion 123 is connected to form a receiving cavity 121, which is directly connected to the guide hole 111. Figure 9 for Figure 3 The diagram shows an embodiment of the corner bracket 120 in the border structure 100. Figure 10 for Figure 9 The diagram shows another embodiment of the corner bracket 120. Figure 11 for Figure 9 The corner bracket 120 shown is a schematic diagram of one embodiment.
[0092] The first mounting portion 122 and the second mounting portion 123 are arranged at right angles. The first mounting portion 122 is installed in the second cavity 118 of one support frame 110, and the second mounting portion 123 is installed in the second cavity 118 of another adjacent support frame 110. In this way, the corner bracket 120 can be fixedly connected to two adjacent support frames 110 through the first mounting portion 122 and the second mounting portion 123.
[0093] Furthermore, the first mounting portion 122 and the second mounting portion 123 are hollow, with the hollow cavity serving as a receiving cavity 121. A flow guide hole 111 is located at the connection between the first mounting portion 122 and the second mounting portion 123. After the corner bracket 120 is installed in the cavity of the supporting frame 110, the flow guide hole 111 can communicate with the receiving cavity 121 at the connection between the first mounting portion 122 and the second mounting portion 123, thereby guiding the colloid in the first cavity 117 into the receiving cavity 121.
[0094] See Figure 9 and Figure 10 In one embodiment of this application, the corner bracket 120 further includes a reinforcing rib 124, which is disposed in the receiving cavity 121 and connected to the inner wall of the receiving cavity 121. The reinforcing rib 124 avoids the guide hole 111. The reinforcing rib 124 is disposed in the receiving cavity 121 to support the inner wall of the receiving cavity 121, thereby improving the structural strength of the corner bracket 120 and thus enabling the corner bracket 120 to reliably support the adjacent support frame 110.
[0095] Since the reinforcing rib 124, located at the connection between the first mounting part 122 and the second mounting part 123, would obstruct the flow guide hole 111, therefore... Figure 9 and Figure 10 The position of the reinforcing rib 124 is adjusted so that the reinforcing rib 124 avoids the flow guide hole 111. In this way, when the colloid flows from the first cavity 117 through the flow guide hole 111 to the receiving cavity 121, the reinforcing rib 124 will not block the colloid, making it easier for the colloid to flow into the receiving cavity 121.
[0096] In one embodiment, the reinforcing rib 124 is straight, curved, spliced with straight lines, spliced with curves, or spliced with both straight and curved lines. The shape of the reinforcing rib 124 is not limited in principle, as long as the reinforcing rib 124 can provide reinforcement and support for the corner bracket 120 and avoid the guide hole 111.
[0097] Figure 9 In the middle, the reinforcing rib 124 is straight and avoids the guide hole 111, so as to prevent the reinforcing rib 124 from blocking the flow of the colloid in the guide hole 111 into the receiving cavity 121. Figure 10 In this embodiment, the reinforcing rib 124 is arc-shaped and avoids the flow guide hole 111 to prevent the reinforcing rib 124 from blocking the flow of the colloid in the flow guide hole 111 into the receiving cavity 121. Of course, in other embodiments of this application, the reinforcing rib 124 may also be other regular or irregular shapes, as long as it can avoid the flow guide hole 111.
[0098] See Figure 11 In another embodiment of this application, the receiving cavity 121 does not have a reinforcing rib 124 at the flow guide hole 111. That is, no reinforcing rib 124 is provided at the connection between the first mounting part 122 and the second mounting part 123, and the inner walls of the receiving cavity 121 are directly opposite each other. In this case, the colloid in the flow guide hole 111 will not be obstructed during its flow into the receiving cavity 121.
[0099] The frame structure 100 of this application has a flow guide hole 111 at at least one end of at least a partially supporting frame 110. This allows the cavity of the supporting frame 110 to connect to the receiving cavity 121 of the corner bracket 120 via the flow guide hole 111. When excess adhesive in the supporting frame 110 flows towards its end, the adhesive can enter the receiving cavity 121 of the corner bracket 120 through the flow guide hole 111. Excess adhesive in the supporting frame 110 will not enter the production line through the gap between adjacent supporting frames 110, thus avoiding contamination of the production line and consequently preventing adhesive contamination of subsequent photovoltaic modules.
[0100] This eliminates the need for a pre-reserved adhesive application distance to address the issue of adhesive overflow at the four corners of the photovoltaic module, ensuring sufficient adhesive at all four corners and preventing insufficient adhesive at these corners, thus guaranteeing product quality. Consequently, the pre-reserved adhesive application distance for the support frame 110 can be reduced, allowing the adhesive to fully fill the four corners of the photovoltaic module, ensuring sufficient adhesive at these corners and strengthening the structural strength of the photovoltaic module.
[0101] Furthermore, the shape of the guide holes 111 at both ends of the supporting frame 110 is not limited in principle, as long as it can guide the colloid in the first cavity 117 into the receiving cavity 121 of the corner bracket 120. A guide surface 1113 is provided at the edge of the guide hole 111, through which the colloid in the first cavity 117 is guided into the guide hole 111, thereby facilitating the entry of the colloid into the receiving cavity 121 of the corner bracket 120. At the same time, the reinforcing rib 124 in the receiving cavity 121 of the corner bracket 120 can be removed, or the position of the reinforcing rib 124 can be adjusted to avoid the guide hole 111, so as not to obstruct the colloid flowing into the receiving cavity 121 through the guide hole 111.
[0102] This application also provides a photovoltaic module, including a laminate 200 and a frame structure 100 as described in any of the above embodiments. The laminate 200 includes at least a cover plate 210, a back plate 220, and a plurality of solar cell strings disposed between the cover plate 210 and the back plate 220, wherein the plurality of solar cell strings are connected in parallel and / or in series. The frame structure 100 is mounted on the edge of the laminate 200.
[0103] The photovoltaic module of this application, after adopting the frame structure 100 of the above embodiment, can accommodate excess adhesive in the supporting frame 110 through the corner bracket 120, preventing the adhesive from entering the production line through the gap between adjacent supporting frames 110, thus avoiding contamination of the production line and subsequent photovoltaic modules. In this way, there is no need to reserve a coating distance to improve the problem of adhesive overflow at the four corners of the photovoltaic module, ensuring sufficient adhesive at the four corners of the photovoltaic module, preventing insufficient adhesive at the four corners, and guaranteeing the product quality of the photovoltaic module.
[0104] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0105] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A frame structure, characterized by, It includes four supporting frames (110) and four corner brackets (120). One end of each supporting frame (110) is connected to one end of another supporting frame (110) through one corner bracket (120). The four supporting frames (110) and the four corner brackets (120) are connected in sequence to form a quadrilateral structure. At least one end of the support frame (110) has a flow guide hole (111), and the corner bracket (120) has a receiving cavity (121). After the corner bracket (120) is installed on the support frame (110), the flow guide hole (111) communicates with the receiving cavity (121).
2. The bezel structure of claim 1, wherein The supporting frame (110) has a first cavity (117) and a second cavity (118). The first cavity (117) can accommodate the colloid to bond and fix the edge of the laminate (200) in the photovoltaic module. The second cavity (118) is used to install the corner bracket (120), and the guide hole (111) connects the first cavity (117) and the second cavity (118) so that the receiving cavity (121) of the corner bracket (120) in the first cavity (117) and the second cavity (118) are connected.
3. The bezel structure according to claim 2, wherein The supporting frame (110) also has a partition plate (119) that divides the supporting frame (110) into the first cavity (117) and the second cavity (118). The flow guide hole (111) is disposed through the partition plate (119) to connect the first cavity (117) and the second cavity (118).
4. The bezel structure of claim 1, wherein The flow guide hole (111) has a flow guide wall (1111) and a blocking wall (1112), and the flow guide wall (1111) and the end of the adjacent supporting frame (110) surround the flow guide hole (111). The barrier wall (1112) is disposed toward the adjacent support frame (110) and is used to block the colloid so that the colloid can flow into the receiving cavity (121) through the guide hole (111).
5. The bezel structure of claim 1, wherein The guide hole (111) also has a guide surface (1113), which is inclinedly disposed at the edge of the guide hole (111) for guiding the colloid into the guide hole (111). The guide surface (1113) is an arc-shaped surface or an inclined surface.
6. The bezel structure of claim 1, wherein The guide hole (111) is a semi-circular hole, a right-angled hole, or the inner wall of the guide hole (111) is a straight line splicing type, a curved splicing type, or a straight line and a curved splicing type; And / or, the opening size of the guide hole (111) is less than or equal to the opening size of the receiving cavity (121).
7. The bezel structure according to any one of claims 1 to 6, characterized in that, The flow guide hole (111) extends to the end of the support frame (110); Alternatively, each of the support frames (110) has a flow guide hole (111) at one end, and two adjacent support frames (110) share one flow guide hole (111). Alternatively, each of the support frame (110) has a flow guide hole (111) at both ends, and the flow guide holes (111) at both ends of the same support frame (110) may have the same or different shapes. Alternatively, each of the support frame (110) has a flow guide hole (111) at both ends, and the flow guide hole (111) at the connection of two adjacent support frames (110) has the same shape.
8. The bezel structure according to any one of claims 1 to 6, characterized in that, The corner bracket (120) includes a first mounting part (122) and a second mounting part (123), wherein the first mounting part (122) and the second mounting part (123) are arranged perpendicularly; The first mounting part (122) and the second mounting part (123) are connected to form the receiving cavity (121), which is directly connected to the guide hole (111).
9. The bezel structure according to any one of claims 1 to 6, wherein The corner bracket (120) also includes a reinforcing rib (124), which is disposed in the receiving cavity (121) and connected to the inner wall of the receiving cavity (121). The reinforcing rib (124) avoids the flow guide hole (111), or the receiving cavity (121) does not have the reinforcing rib (124) at the flow guide hole (111). The reinforcing rib (124) is in the form of a straight line, an arc, a straight line splicing type, a curved splicing type, or a straight line and a curved splicing type.
10. A photovoltaic module, characterized by, Includes a laminate (200) and a frame structure (100) as described in any one of claims 1 to 9; The laminate (200) includes at least a cover plate (210), a back plate (220), and a plurality of solar cell strings disposed between the cover plate (210) and the back plate (220), wherein the plurality of solar cell strings are connected in parallel and / or in series. The border structure (100) is mounted on the edge of the laminate (200).