Special-shaped frame for photovoltaic module

Abstract

The utility model relates to a special-shaped frame for a photovoltaic module, belongs to the technical field of photovoltaic modules, and solves the problems of material waste and low safety of a conventional photovoltaic module frame. The frame comprises a long-direction frame, a short-direction frame and a corner connector, the long-direction frame and the short-direction frame are made of different materials and have different cross sections, the height of the cross section of the short-direction frame is lower than that of the cross section of the long-direction frame, and the long-direction frame and the short-direction frame are assembled together through the corner connector. According to the utility model, the frame cost of the photovoltaic module is obviously reduced by reducing the material consumption of the short-direction frame; the long-direction frame and the short-direction frame with different cross sections are stably connected together through the corner connectors with the two joint parts with different heights, so that the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, and in particular to an irregularly shaped frame for photovoltaic modules. Background Technology

[0002] In the photovoltaic (PV) field, PV modules, as the core component for converting solar energy into electricity, have a direct impact on their performance and cost due to the choice of encapsulation materials. Currently, aluminum alloy frames are the most commonly used encapsulation material for PV modules, and frames of equal height are typically used. However, in practical applications, PV modules are usually fixed using the long side frame during installation, while the short side frame mainly serves to support and protect the laminated components and resist mechanical damage. Since the load-bearing capacity requirements of the short side frame are relatively low, costs can be reduced by decreasing its material usage. Although some module manufacturers have attempted to reduce material usage by thinning the cavity of the short side frame or removing parts of the structure, these methods cannot completely solve the problem of material waste and may affect the overall performance of the frame. Utility Model Content

[0003] Based on the above analysis, the present invention aims to provide a non-standard frame for photovoltaic modules to solve the problems of material waste and performance overkill in existing photovoltaic module frames.

[0004] On the one hand, this utility model provides an irregularly shaped frame for photovoltaic modules, including a long frame, a short frame, and a corner bracket. The long frame and the short frame are made of different materials and have different cross-sections. The height of the cross-section of the short frame is lower than the height of the cross-section of the long frame. The corner bracket is used to assemble the long frame and the short frame together.

[0005] Furthermore, a first through hole extending along its length is provided in the long side frame, and a second through hole extending along its length is provided in the short side frame, wherein the height of the first through hole is greater than the height of the second through hole.

[0006] Furthermore, the corner bracket includes a first joint and a second joint that are perpendicular to each other, the first joint being adapted to join with the long side frame and the second joint being adapted to join with the short side frame.

[0007] Furthermore, the height of the first joint is greater than the height of the second joint.

[0008] Furthermore, both the first and second joints have multiple teeth on their inward-facing surfaces.

[0009] Furthermore, the teeth of the first joint are inclined toward the second joint, and the teeth of the second joint are inclined toward the first joint.

[0010] Furthermore, the longitudinal frame is an aluminum frame, and the short frame is a steel frame or a composite frame made of polymer materials.

[0011] Furthermore, the longitudinal frame is a steel frame, and the short frame is a polymer composite frame or an aluminum frame.

[0012] Furthermore, the longitudinal frame is a polymer composite frame, and the short frame is a steel frame or an aluminum frame.

[0013] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0014] (1) Reduced cost: By making the height of the cross-section of the short frame lower than that of the long frame, the material used in the short frame is reduced, which significantly reduces the frame cost of photovoltaic modules.

[0015] (2) Stable connection: By making the height of the first joint of the corner bracket greater than the height of the second joint, the long side frame and the short side frame with different cross sections are stably connected together, which improves the security.

[0016] (3) Maintaining performance: The use of steel frames or polymer composite frames to replace short-axis aluminum alloy frames ensures the support and protection capabilities of the frames and maintains the original mechanical properties of the photovoltaic modules.

[0017] (4) Improve adaptability: The height of the short frame can be determined according to the type of photovoltaic module, and can be matched with the cross section of the long frame to achieve the best cost performance and meet the needs of different application scenarios.

[0018] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the description and accompanying drawings, which are particularly pointed out. Attached Figure Description

[0019] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0020] Figure 1 This is an assembly diagram of an irregularly shaped frame for a photovoltaic module according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the irregular frame for a photovoltaic module and the installation of the photovoltaic module according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the corner code in a specific embodiment;

[0023] Figure 4 This is a top view of the corner bracket in a specific embodiment;

[0024] Figure 5 This is a schematic diagram of the longitudinal frame cross-section in a specific embodiment;

[0025] Figure 6 This is a schematic diagram of the cross-section of the steel frame in a specific embodiment.

[0026] Figure label:

[0027] 1-Long side frame; 2-Short side frame; 3-Corner bracket; 31-First joint; 32-Second joint; 33-Cavity; 34-Toothed part; 35-Jointing surface; 36-Chamfered surface; 4-Glue overflow groove; 5-Groove opening. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0029] Example 1

[0030] A specific embodiment of this utility model discloses an irregularly shaped frame for photovoltaic modules. As the most commonly used encapsulation material for photovoltaic modules, it is used to fix the photovoltaic modules to photovoltaic brackets, corrugated steel roofs, or other locations, while also serving to support and protect the laminated components against mechanical damage.

[0031] See Figures 1-2 The irregular frame used for photovoltaic modules includes a set of long frame 1, a set of short frame 2, and corner bracket 3. The long frame 1 is set on the long side of the photovoltaic module, the short frame 2 is set on the short side of the photovoltaic module, and the corner bracket 3 is located at the corner of the photovoltaic module and is used to assemble the long frame 1 and the short frame 2 together.

[0032] In this invention, the cross-sections of the long frame 1 and the short frame 2 are different, with the height of the short frame 2's cross-section being lower than the height of the long frame 1's cross-section. By reducing the material used in the short frame 2, the frame cost of the photovoltaic module is significantly reduced. Specifically, the cross-sectional height of the short frame 2 is between 40% and 60% of the cross-sectional height of the long frame 1. Within this range, raw materials can be saved to the maximum extent while ensuring frame strength, thus reducing costs.

[0033] See Figure 1 , Figures 3-4 The corner bracket 3 includes a first joint 31 and a second joint 32 that are perpendicular to each other. The first joint 31 is adapted to engage with the long side frame 1, and the second joint 32 is adapted to engage with the short side frame 2. Specifically, the external shape and size of the first joint 31 are adapted to be inserted into the cavity inside the long side frame 1, and the external shape and size of the second joint 32 are adapted to be inserted into the cavity inside the short side frame 2. Furthermore, the first joint 31 and the long side frame 1, and the second joint 32 and the short side frame 2, are interference fits, and after insertion, they can be locked together under the action of friction.

[0034] To accommodate the shapes of the cavities in the first joint 31 and the second joint 32, and to ensure the stability of the frame connection as much as possible, the height of the first joint 31 is greater than the height of the second joint 32, such as... Figure 3 As shown.

[0035] See Figure 4 Both the first joint 31 and the second joint 32 include multiple cavities 33. This arrangement can reduce material usage and weight while ensuring the overall strength of the corner bracket 3.

[0036] Furthermore, multiple teeth 34 are provided on the inner surfaces of both the first joint 31 and the second joint 32. The teeth 34 of the first joint 31 are inclined toward the second joint 32, and the teeth 34 of the second joint 32 are inclined toward the first joint 31. This arrangement makes it easier for the corner bracket 3 to be inserted into the cavity of the long side frame 1 or the short side frame 2, while the teeth 34 fit more tightly against the inner wall of the cavity, making it less likely to loosen.

[0037] like Figure 4As shown, the first joint 31 and the second joint 32 are connected to each other at their ends, and the joint surface 35 forms a 45° angle with respect to the length direction of both the first joint 31 and the second joint 32. This structure makes the overall structure of the corner bracket 3 more stable and prevents it from breaking due to lateral or longitudinal forces. A chamfered surface 36 is provided at the right angle formed by the first joint 31 and the second joint 32, so that after the long side frame 1 and the short side frame 2 are assembled, there is a certain gap at the corner of the corner bracket 3, avoiding interference caused by structural errors, and allowing the long side frame 1 and the short side frame 2 to fit together more tightly.

[0038] In this embodiment, the longitudinal frame 1 is made of conventional aluminum profile, and its cross-section is as follows: Figure 5 As shown, it includes a first through hole extending along the length direction of the long sidewall 1 for inserting corner bracket 3, and a slot 5 for inserting photovoltaic module. An overflow groove 4 is also provided on the side of the slot 5.

[0039] In some embodiments, the shorter side frame 2 is a steel frame with a cross-section as shown in the figure. Figure 6 As shown, it includes a second through hole extending along the length of the shorter side frame 2 for inserting a corner bracket 3, and a slot 5 for inserting the photovoltaic module. The cross-sectional height of the shorter side frame 2 is lower than that of the longer side frame 1. The steel frame has high mechanical strength and rigidity, effectively supporting the protective laminate, resisting mechanical damage, and maintaining the original mechanical properties of the photovoltaic module.

[0040] In another embodiment, the short frame 2 is a polymer composite frame. It also includes a second through-hole extending along the length of the short frame 2 for inserting the corner bracket 3, and a slot 5 for inserting the photovoltaic module. The polymer composite frame, with its high acid and alkali resistance and corrosion resistance, ensures the high reliability of the photovoltaic module. Although its strength may decrease after long-term aging, the mechanical performance requirements of the short frame 2 are not as high as those of the long frame 1, ensuring that the mechanical performance of the photovoltaic module will not weaken even in the presence of aging issues. Furthermore, compared to the steel frame 7, the polymer composite frame 8 is easier to process for the adhesive overflow groove 4; the specific structure is described in [reference needed]. Figure 5 The framing process is simple and ensures its reliability.

[0041] In some other embodiments, the long frame 1 is made of steel, and the short frame 2 is made of either a polymer composite frame or an aluminum frame.

[0042] Specifically, the long frame 1 uses a steel frame, while the short frame 2 uses a polymer composite frame or an aluminum frame. This not only greatly reduces the cost of the frame material for the module, but also the strength advantage of the steel frame itself can meet the strength requirements of the module in areas with high mechanical loads, high wind loads, and high snow loads.

[0043] Furthermore, in some extended embodiments, the long frame 1 is made of a polymer composite frame, and the short frame 2 is made of either a steel frame or an aluminum frame.

[0044] Specifically, the long frame 1 uses a polymer composite frame, while the short frame 2 uses a steel or aluminum frame. This design achieves lightweighting and reduces the weight of the module. Furthermore, the polymer composite frame itself boasts high acid and alkali resistance and corrosion resistance, ensuring the high reliability requirements for outdoor use of the photovoltaic module. Simultaneously, the low-height, irregularly shaped structure of the short frame 2 consistently reduces the amount of material used in the module frame, resulting in a cost advantage.

[0045] In the above embodiments, the use of irregularly shaped frames reduces the material cost of photovoltaic module frames on the one hand, and replaces the short frame with frames of different materials on the other hand, ensuring the original mechanical strength requirements of the photovoltaic module.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-circular frame for photovoltaic modules, characterized in that, It includes a long frame, a short frame, and a corner bracket. The long frame and the short frame are made of different materials and have different cross-sections. The height of the cross-section of the short frame is lower than the height of the cross-section of the long frame. The corner bracket is used to assemble the long frame and the short frame together.

2. The irregularly shaped frame for photovoltaic modules according to claim 1, characterized in that, The long frame has a first through hole extending along its length, and the short frame has a second through hole extending along its length. The height of the first through hole is greater than the height of the second through hole.

3. The irregularly shaped frame for photovoltaic modules according to claim 2, characterized in that, The corner bracket includes a first joint and a second joint that are perpendicular to each other. The first joint is used to join with the long side frame, and the second joint is used to join with the short side frame.

4. The irregularly shaped frame for photovoltaic modules according to claim 3, characterized in that, The height of the first joint is greater than the height of the second joint.

5. The irregularly shaped frame for photovoltaic modules according to claim 4, characterized in that, Both the first and second joints have multiple teeth on their inward-facing surfaces.

6. The irregularly shaped frame for photovoltaic modules according to claim 5, characterized in that, The teeth of the first joint are inclined toward the second joint, and the teeth of the second joint are inclined toward the first joint.

7. The irregularly shaped frame for photovoltaic modules according to any one of claims 1-3 and 5-6, characterized in that, The long frame is an aluminum frame, and the short frame is a steel frame or a composite frame made of polymer materials.

8. The irregularly shaped frame for photovoltaic modules according to any one of claims 1-3 and 5-6, characterized in that, The longitudinal frame is a steel frame, and the short frame is a polymer composite frame or an aluminum frame.

9. The irregularly shaped frame for photovoltaic modules according to any one of claims 1-3 and 5-6, characterized in that, The longitudinal frame is a composite frame made of polymer material, and the short frame is a steel frame or an aluminum frame.

Images