Backside support for photovoltaic frame and photovoltaic module
By using a combination structure of two long frames, two short frames, and four diagonal supports on the back of the photovoltaic module, the problem of photovoltaic module deformation under extreme loads is solved, the back support effect is enhanced, the mechanical strength and dust accumulation prevention effect are improved, and the cost is reduced.
Patent Information
- Application Number
- CN202521974680.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-12
AI Technical Summary
Existing photovoltaic modules are prone to deformation under extreme loads, especially the back glass, which is prone to cracking or tearing. In addition, the support effect is insufficient, resulting in problems such as low stability and reliability, and high cost.
The structure adopts a combination of two long frames, two short frames, and four diagonal support members. The diagonal support members are connected to the long and short frames through connectors to enhance the back support effect and transfer part of the frame to the back of the photovoltaic module, thereby reducing the frame length and lowering the cost.
It improves the mechanical strength and dust-proof effect of photovoltaic modules, enhances back support, reduces production costs, and improves safety and stability.
Smart Images
Figure CN224684166U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic technology, specifically to a back-supported photovoltaic frame and photovoltaic module. Background Technology
[0002] Currently, photovoltaic (PV) modules are highly susceptible to extreme loads when operating outdoors, such as strong winds, rain, and snow. These loads often cause significant deformation, leading to cracks and even tears in the glass, especially the back glass. However, existing PV modules are typically rectangular and protected only by a surrounding frame. Even with support brackets, these issues cannot be fully prevented. Furthermore, as PV modules become larger, stronger support and protection measures are urgently needed. While some PV modules incorporate additional support on the back parallel to the short frame, this still results in significant deformation in the center of the short frame when subjected to frontal loads. This fails to effectively address the issue of large glass deformation and also presents problems such as inconvenience in operation, lower stability and reliability, and higher costs. Utility Model Content
[0003] The purpose of this application is to provide a back-support photovoltaic frame and photovoltaic module, which enhances the support effect of the photovoltaic frame on the back of the photovoltaic module, improves the mechanical strength and dust accumulation prevention effect of the photovoltaic module, and reduces costs.
[0004] To solve at least one of the above-mentioned technical problems, this application adopts the following technical solution:
[0005] According to a first aspect of this application, a back-support photovoltaic frame is provided, comprising: two long frame members for wrapping a portion of two long sides of a photovoltaic laminate respectively; two short frame members for corresponding a portion of two short sides of the photovoltaic laminate respectively; and four diagonal support members for supporting the back of the photovoltaic laminate at the four corner positions respectively, wherein the two ends of each diagonal support member in the length direction are connected to their respective long and short frame members by connectors.
[0006] In one possible implementation of the first aspect above, the connector is a corner bracket, the connector includes two connecting arms, one end of the two connecting arms is connected to each other, each of the two ends of the length direction of each long frame is provided with a first cavity connected to the connecting arm, each of the two ends of the length direction of each short frame is provided with a second cavity connected to the connecting arm, and each of the two ends of the length direction of each inclined support is provided with a third cavity connected to the connecting arm.
[0007] In one possible implementation of the first aspect above, the angle between each diagonal support and the short frame it is connected to is the same as the angle between the long frame and the short frame it is connected to, the four diagonal supports have the same length, and the angle between the diagonal support and the short frame it is connected to is the same as the angle between the two connecting arms.
[0008] In one possible implementation of the first aspect described above, each connecting arm is provided with a first connecting portion, and each first cavity, each second cavity, and each third cavity are respectively provided with a second connecting portion connected to the first connecting portion.
[0009] In one possible implementation of the first aspect described above, the first connecting part is engaged with the second connecting part, the second connecting part is a plurality of locking teeth arranged sequentially along the length direction of the connecting arm, each locking tooth extending along the width direction of the connecting arm, and the first connecting part is a protruding structure that cooperates with the locking teeth.
[0010] In one possible implementation of the first aspect mentioned above, each tooth is inclined toward the connection of the two connecting arms, and each connecting arm is provided with a weight reduction hole.
[0011] In one possible implementation of the first aspect mentioned above, two short frames respectively wrap around a portion of the two short sides of the photovoltaic laminate.
[0012] In one possible implementation of the first aspect mentioned above, two short frames are located on the back of the photovoltaic laminate for support.
[0013] In one possible implementation of the first aspect described above, each diagonal support member is integrally formed with the two connecting members to which it is connected.
[0014] According to a second aspect of this application, a photovoltaic module is provided, including the back-supported photovoltaic module of the first aspect described above.
[0015] The above-mentioned technical solution of this application has at least one of the following beneficial effects:
[0016] The back support photovoltaic frame according to this application includes two long frames, two short frames, and four diagonal support members. The two long frames are used to wrap a portion of the two long sides of the photovoltaic laminate, and the two short frames are used to correspond to a portion of the two short sides of the photovoltaic laminate. The four diagonal support members are used to support the back of the photovoltaic laminate at the four corner positions. The two ends of each diagonal support member in the length direction are connected to the corresponding long and short frames through connectors. Therefore, on the one hand, each diagonal support member is connected to its corresponding long and short frame members at both ends via connectors. The four diagonal supports provide support on the back of the photovoltaic laminate at the four corners, allowing part of the frame to be transferred to the back of the photovoltaic module. This is convenient and quick to operate, effectively enhancing the support effect of the photovoltaic frame on the back of the photovoltaic module and improving the mechanical strength of the photovoltaic module. On the other hand, the fact that the two long frames do not completely cover the two long sides of the photovoltaic laminate, or do not completely cover the two short sides of the photovoltaic laminate, or do not cover the two short sides of the photovoltaic laminate at all, not only reduces and improves the dust accumulation effect of the photovoltaic module, but also reduces the length of the frame, reduces the amount of frame used, and provides high safety, stability and reliability, while reducing production costs.
[0017] In addition, unless otherwise specified in the technical solution of this application, the technical solution can be implemented by conventional means in the field. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the back structure of a photovoltaic module with a back-supported photovoltaic frame, according to one embodiment of this application.
[0020] Figure 2 For this application Figure 1 Schematic diagram of the cross-sectional structure in the BB direction;
[0021] Figure 3 This is a schematic diagram of the front structure of a photovoltaic module with a back-supported photovoltaic frame, according to one embodiment of this application.
[0022] Figure 4 For this application Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;
[0023] Figure 5This is a schematic diagram of the front structure of a photovoltaic module with a back-supported photovoltaic frame, according to one embodiment of this application.
[0024] Figure 6 For the purposes of this application Figure 5 Schematic diagram of the cross-sectional structure in the CC direction;
[0025] Figure 7 This is a schematic diagram of the structure of a connector according to one embodiment of this application;
[0026] Figure 8 This is a schematic diagram of the structure of an oblique support member connected to a short frame via a connector, according to one embodiment of this application.
[0027] Figure 9 This is a schematic diagram of an integrally formed inclined support member and connector according to one embodiment of this application.
[0028] Explanation of the labels in the attached drawings:
[0029] Long border 100;
[0030] Short frame 200; Second cavity 201;
[0031] Angled support 300; Third cavity 301;
[0032] Connector 400; Connecting arm 401; First connecting part 402; Weight reduction hole 403;
[0033] Second connecting part 500;
[0034] Photovoltaic laminate 600;
[0035] Junction box 700. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only some, not all, of the embodiments of this application, and are used merely to explain this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0037] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.
[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0039] See Figure 1 , 3 As shown in Figure 5, a back-supported photovoltaic frame according to an embodiment of this application is schematically shown, which may include: two long frames 100, two short frames 200 and four diagonal support members 300.
[0040] Among them, such as Figures 1-6 As shown, two long frame members 100 are used to wrap a portion of each of the two long sides of the photovoltaic laminate 600, and two short frame members 200 are used to wrap a portion of each of the two short sides of the photovoltaic laminate 600. The two short frame members 200 can either wrap a portion of each of the two short sides of the photovoltaic laminate 600 or be completely positioned on the back of the photovoltaic laminate 600 for support. Four diagonal support members 300 are used to support the back of the photovoltaic laminate 600 at its four corner positions. At least each long frame member 100 has a mounting groove that connects to the long side of the photovoltaic laminate 600. (Reference) Figure 7 As shown, each inclined support 300 has its two ends connected to its corresponding long frame 100 and short frame 200 via connectors 400. Typically, the two long frames 100 are parallel, the two short frames 200 are parallel, and the long frame 100 and the short frame 200 are perpendicular.
[0041] Photovoltaic modules are typically mounted at an angle on a support frame. By employing the back-support photovoltaic frame of this application, one short frame 200 faces upwards, another short frame 200 faces downwards, and two long frames 100 are located on either side of the two short frames 200. Four diagonal support members 300 support the back of the photovoltaic laminate 600, effectively enhancing the support effect of the photovoltaic frame on the back of the photovoltaic module. This prevents the back glass of the photovoltaic module from experiencing significant deformation, cracks, or even tearing. At the same time, since there is no frame on the front of at least the four corners of the photovoltaic module, the obstruction of dust and debris such as mud and sand on the front of the photovoltaic module is reduced, and the length of the frame is also reduced, thus saving materials.
[0042] Therefore, according to the back-support photovoltaic frame of this application, on the one hand, the two ends of each diagonal support 300 in the length direction are connected to their respective long frame 100 and short frame 200 through connectors 400. The four diagonal support 300 support the back of the photovoltaic laminate 600 at the four corners, so that part of the frame is transferred to the back of the photovoltaic module. The operation is convenient and quick, effectively enhancing the support effect of the photovoltaic frame on the back of the photovoltaic module, preventing large deformation, cracks, or even tearing of the back glass of the photovoltaic module, and improving the mechanical strength of the photovoltaic module. On the other hand, the two long frames 100 do not completely cover the two long sides of the photovoltaic laminate 600, and the two long frames 100 do not completely cover the two short sides of the photovoltaic laminate 600 or do not cover the two short sides of the photovoltaic laminate 600. This not only reduces and improves the anti-dust accumulation effect of the photovoltaic module, but also reduces the length of the frame, reduces the amount of frame used, and improves safety, stability and reliability, thus reducing production costs.
[0043] In one embodiment, see Figures 1-4 As shown, two long frame edges 100 respectively wrap around a portion of the two long sides of the photovoltaic laminate 600, and two short frame edges 200 respectively wrap around a portion of the two short sides of the photovoltaic laminate 600. Each long frame edge 100 is provided with a mounting groove that mates with the long side of the photovoltaic laminate 600, and each short frame edge 200 is provided with a mounting groove that mates with the short side of the photovoltaic laminate 600. This improves the dust accumulation prevention effect of the photovoltaic module while also ensuring the connection stability between the photovoltaic frame and the photovoltaic laminate 600.
[0044] In another embodiment, see Figures 1-2As shown in Figures 5 and 6, two long frame members 100 respectively wrap around a portion of the two long sides of the photovoltaic laminate 600, while two short frame members 200 are located on the back of the photovoltaic laminate 600 for support. Thus, the two short frame members 200 are completely located on the back of the photovoltaic laminate 600, preventing any obstruction of dust or debris such as mud and sand from the front of the photovoltaic laminate 600. This further improves the dust-proof effect of the photovoltaic module and reduces the material required for the frame, significantly saving production costs.
[0045] In some embodiments, reference Figure 2 , 4 As shown in Figures 6, 7, and 8, the connector 400 can be a corner bracket. The connector 400 includes two connecting arms 401, with one end of each arm connected to the other. Each long frame 100 has a first cavity (not shown in the figure) at both ends along its length that connects to the connecting arm 401. Each short frame 200 has a second cavity 201 at both ends along its length that connects to the connecting arm 401. Each inclined support 300 has a third cavity 301 at both ends along its length that connects to the connecting arm 401. Thus, the connecting arms 401 of the corner bracket are inserted into the cavities of the corresponding frames, allowing the inclined support 300 to connect with either the short frame 200 or the long frame 100, making operation more convenient and faster.
[0046] Further, refer to Figure 1 , 3 As shown in Figure 5, the angle between each diagonal support 300 and its connected short frame 200 is the same as the angle between each diagonal support 300 and its connected long frame 100. The four diagonal support members 300 are of equal length, and the angle between each diagonal support 300 and its connected short frame 200 is the same as the angle between the two connecting arms 401. In other words, the four diagonal support members 300 are of equal length, and the angle between each diagonal support 300 and its connected short frame 200 is 135°, the angle between each diagonal support 300 and its connected long frame 100 is 135°, and the angle between the two connecting arms 401 can also be 135°. This results in more even stress distribution and a more stable and reliable structure.
[0047] In some embodiments, reference Figure 2 , 4 As shown in Figures 6, 7, and 8, each connecting arm 401 is provided with a first connecting portion 402, and each first cavity, each second cavity 201, and each third cavity 301 is provided with a second connecting portion 500 connected to the first connecting portion 402. The first connecting portion 402 and the second connecting portion 500 can be snapped together, and the first connecting portion 402 can be disposed on the inner sidewall of the connecting arm 401.
[0048] For example, refer to Figure 7 and 8As shown, the second connecting part 500 consists of multiple locking teeth arranged sequentially along the length of the connecting arm 401, forming a serrated structure. Each locking tooth extends along the width of the connecting arm 401. The first connecting part 402 is a protruding structure that cooperates with the locking teeth. For example, it can be processed by using molds or other equipment to create rivet points on the outside of the cavity, thus forming multiple protruding structures inside the cavity. This not only makes manufacturing more convenient but also ensures a more stable connection between the connecting arm 401 and the cavity, resulting in higher safety and reliability.
[0049] Further, refer to Figure 7 and 8 As shown, each locking tooth is inclined towards the connection point of the two connecting arms 401. When the connecting arm 401 is inserted into the cavity, the inclined locking teeth not only facilitate the smooth insertion of the connecting arm 401 into the cavity, but also have a certain reverse self-locking effect, ensuring a more reliable connection between the cavity and the connecting arm 401. The two connecting arms 401 of the corner bracket can also be provided with guide slopes at their opposite ends, facilitating better insertion of the connecting arm 401 into the cavity.
[0050] In some embodiments, reference Figure 7 As shown, each connecting arm 401 is provided with a weight-reducing hole 403. There can be multiple weight-reducing holes 403 on each connecting arm 401, and each weight-reducing hole 403 can extend through the width of the connecting arm 401. This reduces the weight of the product, saves materials, and lowers costs.
[0051] In some embodiments, see Figure 9 As shown, each inclined support 300 and its two connected connectors 400 are integrally formed, for example, by casting, extrusion, or 3D printing. The connectors 400 can adopt the structure of the connecting arm 401 described above, which will not be elaborated further here. This makes manufacturing more convenient, the structure more stable, and extends the product's lifespan.
[0052] See Figure 1 , 3 As shown in Figure 5, a photovoltaic module is also provided according to an embodiment of this application, including the aforementioned back-supporting photovoltaic frame of this application. The photovoltaic module further includes a photovoltaic laminate 600 and a junction box 700, etc. The junction box 700 can be disposed on the back of the photovoltaic laminate 600. The photovoltaic laminate 600 and the junction box 700 can adopt corresponding mechanisms in the prior art, which will not be described in detail here.
[0053] Based on the various embodiments of this application described above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.
[0054] The above descriptions are merely some embodiments of this application, used only to illustrate the technical solutions of this application, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above descriptions without departing from the inventive concept of this application, and all such improvements and substitutions should fall within the protection scope of this application. In this case, all details can be replaced with equivalent elements, and materials, shapes, and sizes can also be arbitrary.
Claims
1. A photovoltaic frame with a back support, characterized in that, include: Two long frame pieces are used to wrap a portion of each of the two long sides of the photovoltaic laminate; Two short frame sections are used to correspond to a portion of each of the two short sides of the photovoltaic laminate; Four diagonal support members are used to support the back of the photovoltaic laminate at the four corners respectively. The two ends of each diagonal support member along its length are connected to the corresponding long frame and short frame respectively through connectors.
2. The rear-support photovoltaic frame according to claim 1, characterized in that, The connector is a corner bracket, which includes two connecting arms. One end of the two connecting arms is connected to each other. Each long frame has a first cavity at both ends in the length direction that is connected to the connecting arm. Each short frame has a second cavity at both ends in the length direction that is connected to the connecting arm. Each inclined support has a third cavity at both ends in the length direction that is connected to the connecting arm.
3. The back-supported photovoltaic frame according to claim 2, characterized in that, The angle between each of the inclined support members and the short frame to which it is connected is the same as the angle between the long frame and the short frame. The four inclined support members are of the same length, and the angle between the inclined support member and the short frame to which it is connected is the same as the angle between the two connecting arms.
4. The rear-support photovoltaic frame according to claim 3, characterized in that, Each of the connecting arms is provided with a first connecting part, and each of the first cavity, each of the second cavity and each of the third cavity is provided with a second connecting part that is connected to the first connecting part.
5. The rear-support photovoltaic frame according to claim 4, characterized in that, The first connecting part is engaged with the second connecting part. The second connecting part consists of a plurality of locking teeth arranged sequentially along the length direction of the connecting arm. Each locking tooth extends along the width direction of the connecting arm. The first connecting part is a protruding structure that cooperates with the locking teeth.
6. The rear-support photovoltaic frame according to claim 5, characterized in that, Each of the locking teeth is inclined toward the connection point of the two connecting arms, and each connecting arm is provided with a weight reduction hole.
7. The rear-support photovoltaic frame according to claim 1, characterized in that, The two short frame pieces respectively wrap around a portion of the two short sides of the photovoltaic laminate.
8. The rear-support photovoltaic frame according to claim 1, characterized in that, The two short frame members are located on the back of the photovoltaic laminate for support.
9. The rear-support photovoltaic frame according to claim 1, characterized in that, Each of the inclined support members and the two connecting members to which it is connected are integrally formed.
10. A photovoltaic module, characterized in that, Includes the rear-supported photovoltaic frame as described in any one of claims 1 to 9.