corner protector
By using a combination of corner protectors, clamps, and soft layers in photovoltaic modules, the problems of slippage and friction damage to the steel frame during transportation are solved, thereby improving the stability and safety of the modules.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU CANADIAN SOLAR ELECTRIC POWER TECHCO
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-21
Smart Images
Figure CN224529479U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic technology, and more specifically, to a corner protector. Background Technology
[0002] Steel frames are widely used in photovoltaic modules due to their advantages such as high load-bearing capacity and low cost. However, due to the properties of steel, steel frames are prone to slippage during stacking and transportation. This can range from minor friction damage to the zinc-aluminum-magnesium protective layer, causing blackening, to serious damage to the photovoltaic module. Utility Model Content
[0003] This application provides a corner protector.
[0004] The corner protector provided in this application is used to protect a steel frame. The steel frame includes a top plate with a free end and a top surface. The steel frame also includes side surfaces, which are substantially perpendicularly connected to the top surface away from the free end. The corner protector includes a clamping member and a soft layer. The clamping member includes a protective plate, a clamping plate, and a snap-fit plate. The clamping plate and the snap-fit plate are respectively connected to the opposite sides of the protective plate. The clamping plate extends towards the snap-fit plate and the protective plate, forming an abutting portion. The clamping member is configured to nest within the top plate. The abutting portion presses the top plate against the protective plate. The snap-fit plate snaps onto the side surface to fix the free end. The soft layer is disposed on the surfaces of the protective plate and the clamping plate opposite to each other.
[0005] In some embodiments, the clamping element is made of polyvinyl chloride or polypropylene.
[0006] In some embodiments, the width of the clamping member is within the width range of [40mm, 80mm].
[0007] In some embodiments, the thickness of the clamping member is within the thickness range of [1.5 mm, 2.0 mm].
[0008] In some embodiments, the clamping plate includes a connecting plate and an abutment plate. Along the direction from the protective plate toward the clamping plate, the connecting plate has an arc-shaped cross-section, and the abutment plate has a straight cross-section. The two opposite ends of the connecting plate are respectively connected to the protective plate and the abutment plate. The center of the connecting plate faces the middle of the protective plate. The abutment plate extends from the connecting plate toward the middle of the protective plate. Along the direction from the abutment plate toward the snap-fit plate, the distance between the abutment plate and the protective plate gradually decreases, and the end of the abutment plate away from the connecting plate forms the abutment portion.
[0009] In some embodiments, the clamping plate further includes an extension plate connected to the end of the abutment plate away from the connecting plate to form the abutment portion; the distance between the extension plate and the protective plate gradually increases along the direction of the clamping plate toward the snap-fit plate.
[0010] In some embodiments, the snap-on plate extends away from the protective plate and is opposite to the clamping plate, with the angle between the snap-on plate and the protective plate being less than 90°.
[0011] In some embodiments, the angle between the buckle plate and the protective plate is within the angle range of [85°, 90°].
[0012] In some embodiments, the clamping element is made of polyvinyl chloride or polypropylene.
[0013] In some embodiments, the thickness of the soft layer is within the thickness range of [0.3 mm, 1 mm].
[0014] In some embodiments, the coefficient of friction of the soft layer on the surface opposite to the protective plate is greater than 0.4.
[0015] The corner protector of this application includes a clamping member and a flexible layer. The clamping member includes a protective plate, a snap-fit plate, and a retaining plate. The retaining plate extends towards the snap-fit plate and the protective plate, forming an abutting portion. The clamping member is configured to nest on the top plate, with the abutting portion pressing the top plate against the protective plate. The snap-fit plate is snapped onto the side to fix the free end. Simultaneously, the flexible layer is disposed on the surfaces opposite to the protective plate and the retaining plate. Thus, the corner protector can be securely nested on the steel frame. Specifically, the abutting portion pressing the top plate against the protective plate restricts the degree of freedom of the corner protector relative to the steel frame in the direction perpendicular to the top plate, while the snap-fit plate, snapping onto the side to fix the free end, restricts the degree of freedom of the corner protector relative to the steel frame in the direction parallel to the top plate. In other words, the corner protector is securely nested on the steel frame by being securely nested on the top plate. Therefore, when stacking photovoltaic modules, the steel frame of the lower photovoltaic module is separated from the steel frame of the upper photovoltaic module by the corner protector. The steel frame of the upper photovoltaic module is set on the corner protectors of the lower photovoltaic module, or more precisely, on the soft layer of the corner protectors of the lower photovoltaic module. In this way, on the one hand, the relative slippage between the two photovoltaic modules can be reduced or even avoided; on the other hand, even if slippage occurs, the top plate of the steel frame of the lower photovoltaic module will not be rubbed blackened because it is protected under the protective plate.
[0016] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:
[0018] Figure 1 This is a cross-sectional schematic diagram of the corner protectors and steel frame assembled according to some embodiments of this application;
[0019] Figure 2 This is a cross-sectional schematic diagram of the corner protectors, steel frame, and photovoltaic panel assembly and stacking according to some embodiments of this application;
[0020] Figure 3 This is a plan view of the corner protectors and steel frame assembled according to some embodiments of this application.
[0021] Explanation of key component symbols:
[0022] 100. Corner protector; 10. Clamping component; 11. Protective plate; 12. Clamping plate; 121. Contact part; 122. Connecting plate; 123. Contact plate; 124. Extension plate; 13. Buckling plate; 20. Soft layer;
[0023] 200. Steel frame; 201. Top plate; 2011. Free end; 2012. Top surface; 202. Outer side plate; 2021. Side; 203. Inner side plate; 204. Bottom plate;
[0024] 300. Photovoltaic panels. Detailed Implementation
[0025] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.
[0026] In the description of this application, it should be understood that the terms "thickness," "upper," "top," "bottom," "inner," "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly. In one example, they can be a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection, an electrical connection, or a connection that allows communication between them; they can be a direct connection or an indirect connection through an intermediate medium; they can be the internal connection of two elements or the interaction between two elements.
[0028] In embodiments of this application, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] Please see Figure 1 and Figure 2 This application provides a corner protector 100 for protecting a steel frame 200. The steel frame 200 includes a top plate 201, which includes a free end 2011 and a top surface 2012. The steel frame 200 also includes a side surface 2021, which is substantially perpendicularly connected to the side of the top surface 2012 away from the free end 2011. The corner protector 100 includes a clamping member 10 and a soft layer 20. The clamping member 10 includes a protective plate 11, a clamping plate 12, and a snap-fit plate 13. The clamping plate 12 and the snap-fit plate 13 are respectively connected to the opposite sides of the protective plate 11. The clamping plate 12 extends toward the snap-fit plate 13 and the protective plate 11 and forms an abutment portion 121. The clamping member 10 is configured to nest on the top plate 201, the abutting part 121 abuts the top plate 201 against the protective plate 11, and the snap-on plate 13 snaps onto the side 2021 to fix the free end 2011. The soft layer 20 is provided on the surfaces of the protective plate 11 and the clamping plate 12 opposite to each other.
[0030] In this way, the corner protector 100 can be firmly nested on the steel frame 200. Specifically, the abutting portion 121 abuts the top plate 201 against the protection plate 11, which can limit the freedom degree of the corner protector 100 relative to the steel frame 200 in the direction perpendicular to the top plate. The snap plate 13 snaps onto the side surface 2021 to fix the free end 2011, which can limit the freedom degree of the corner protector 100 relative to the steel frame 200 in the direction parallel to the top plate. That is to say, the corner protector 100 is firmly nested on the steel frame 200 by being firmly nested on the top plate 201. Therefore, when stacking photovoltaic modules, the steel frames 200 of the lower photovoltaic module and the steel frames 200 of the upper photovoltaic module are separated by the corner protector 100. The steel frame 200 of the upper photovoltaic module is disposed on the corner protector 100 of the lower photovoltaic module, or more precisely, on the soft layer 20 of the corner protector 100 of the lower photovoltaic module. In this way, on the one hand, the relative slippage between the two layers of photovoltaic modules can be reduced or even avoided. On the other hand, even if slippage occurs, since the top plate 201 of the steel frame 200 of the lower photovoltaic module is protected under the protection plate 11, it will not be rubbed black due to this.
[0031] The steel frame 200 is a metal frame used to fix and protect the edges of the photovoltaic panel 300 (as Figure 3 shown), usually made of high-strength steel, replacing the traditional aluminum alloy frame to reduce costs and improve structural performance. The steel frame 200 includes a top plate 201, an outer side plate 202, an inner side plate 203, and a bottom plate 204. Among them, the top plate 201, the outer side plate 202, the inner side plate 203, and the bottom plate 204 can be integrally formed. The outer side plate 202 extends from the end of the top plate 201 in a direction away from the top plate 201 until it is connected to the bottom plate 204. The inner side plate 203 extends from a region near the middle of the top plate 201 in a direction away from the top plate 201, and then extends in the direction of the outer side plate 202, so that the inner side plate 203, the outer side plate 202, and the top plate 201 can jointly enclose a hollow cavity to utilize the hollow cavity to increase the sectional moment of inertia of the steel frame 200, thereby effectively suppressing the buckling deformation of the steel frame 200 when compressed. After the inner side plate 203 extends in the direction of the outer side plate 202, it then extends in a direction away from the top plate 201 until it is connected to the bottom plate 204. At this time, an installation groove similar to the shape of "冂" can be formed between the inner side plate 203 and the bottom plate 204, and the photovoltaic panel 300 can extend into the installation groove to assemble the steel frame 200 and the photovoltaic panel 300 to form a photovoltaic module.
[0032] Furthermore, the top plate 201 extends in a direction away from the outer plate 202 to form a rolled edge. The end of this rolled edge away from the outer plate 202 is the free end 2011 of the top plate 201. The rolled edge is used to strengthen load and fatigue resistance. The outer surface of the top plate 201 is the top surface 2012, which can be understood as the c-surface of the steel frame 200. Simultaneously, the outer plate 202 of the steel frame 200 also includes a side surface 2021 that is substantially perpendicularly connected to the side of the top surface 2012 away from the free end 2011. The side surface 2021 can be understood as the b-surface of the steel frame 200. The outer surface of the bottom plate 204 can be understood as the a-surface of the steel frame 200.
[0033] During transportation or storage, the steel frames 200 are typically stacked. Corner guards 100 are provided on the steel frames 200 to protect them and isolate adjacent steel frames 200, thereby preventing friction between adjacent steel frames 200. Figure 3 A scene diagram showing the assembly of corner protectors 100, steel frame 200, and photovoltaic panels 300 to form a photovoltaic module, and then the photovoltaic modules are stacked.
[0034] The clamping member 10 is configured to nest on the top plate 201, the abutting part 121 abuts the top plate 201 against the protective plate 11, and the snap-on plate 13 snaps onto the side 2021 to fix the free end 2011. When installing the corner protector 100 on the steel frame 200, the top plate 201 of the steel frame 200 is first inserted into the corner protector 100. At this time, the abutting part 121 of the corner protector 100 is pushed open by the top plate 201, and the abutting part 121 is pulled away from the protective plate 11 to increase the distance between the abutting part 121 and the protective plate 11, so that the top plate 201 can extend into the receiving space between the clamping plate 12 and the protective plate 11. After the top plate 201 extends into the receiving space between the clamping plate 12 and the protective plate 11, the contact part 121 abuts the top plate 201 against the protective plate 11, thereby clamping the top plate 201 with the contact part 121 and the protective plate 11, restricting the degree of freedom of the corner protector 100 relative to the steel frame 200 in the direction perpendicular to the top plate. The length of the protective plate 11 is set according to the length of the top plate 201, so that when the snap-on plate 13 is snapped on the side 2021, the free end 2011 is fixed between the clamping plate 12 and the protective plate 11, thereby restricting the degree of freedom of the corner protector 100 relative to the steel frame 200 in the direction parallel to the top plate.
[0035] Thus, compared to existing corner protectors 100 that utilize snap-fit mechanisms, the clamping plate 12 and protective plate 11 of this application can collaboratively clamp the top plate 201 of the steel frame 200, and the snap-fit plate 13 can fix the side 2021 of the steel frame 200, allowing the clamping member 10 to stably clamp the steel frame 200 without the clamping member 10 falling off. Furthermore, the assembly between the clamping member 10 and the steel frame 200 is relatively simple. Therefore, the corner protector 100 of this application can be stably installed on steel frames 200 without snap-fit structures, simply by ensuring that the top plate 201 of the steel frame 200 has a rolled edge, allowing the clamping member 10 to clamp the top plate 201 through the rolled edge. The rolled edge is for increasing load capacity, and therefore is a standard feature of steel frames 200. Consequently, the limitations on the steel frames 200 to which the corner protector 100 of this application is compatible are relatively small. The steel frame 200 adapted to the corner protector 100 of this application can be an open steel frame 200 or a closed steel frame 200, wherein... Figure 1 The closed steel frame 200 shown has a relatively good fit.
[0036] Please see Figure 1 In some embodiments, the clamping member 10 may be made of a rigid material with a certain mechanical strength, such as polyvinyl chloride (PVC) or polypropylene (PP), so that the clamping member 10 has a certain mechanical strength, ensuring a certain isolation effect between the steel frames 200, thereby preventing the steel frames 200 from contacting each other and ensuring the product properties of the steel frames 200. It should be noted that the PP material can be a soft material or a rigid material, depending on its manufacturing process. Therefore, the manufacturing process can be selected as needed to produce PP material with the required hardness.
[0037] Please see Figure 1 and Figure 3 In some embodiments, the width of the clamping member 10 is within the width range of [40mm, 80mm].
[0038] Specifically, the width of the clamping member 10 refers to Figure 3 The width L shown is Figure 3 The steel frame 200 shown is a single side of the steel frame 200. For example, the width of the clamping member 10 can be 40mm, 45mm, 52mm, 67mm, 73mm, 78mm, and 80mm. It should be noted that the side length of the steel frame 200 is usually much greater than 80mm, therefore... Figure 3 As shown, each side of the steel frame 200 is typically provided with multiple clamping members 10, which are spaced apart. The specific number depends on the side length of the steel frame 200 and is not limited here. For example, if the steel frame 200 is rectangular, three clamping members 10 are provided on the long side of the steel frame 200, and two clamping members 10 are provided on the short side of the steel frame 200.
[0039] If the width of the clamping member 10 is too wide, for example, 90mm, the cost of the clamping member 10 will be too high. If the width of the clamping member 10 is too narrow, for example, 25mm, the clamping member 10 will not be able to stably isolate the two adjacent steel frame edges 200, so that the steel frame edges 200 are still at risk of friction.
[0040] Thus, the width of the clamping member 10 is within the width range of [40mm, 80mm], which can ensure that when multiple clamping members 10 are in cooperation, they can stably isolate two adjacent steel frames 200 to avoid friction between the two adjacent steel frames 200. At the same time, it can also reduce the cost of the clamping member 10, eliminating the need to set clamping members 10 with a width equal to or almost equal to the side of the steel frame 200.
[0041] Of course, in other embodiments, the width of the clamping member 10 may also be equal to or nearly equal to the side of the steel frame 200 to ensure that the clamping member 10 can completely isolate two adjacent steel frames 200.
[0042] Please see Figure 1 In some embodiments, the thickness of the clamping member 10 is within the thickness range of [1.5mm, 2.0mm]. The thickness of the clamping member 10 refers to the thickness of the clamping member 10 along the direction from the top plate 201 of the steel frame 200 toward the bottom plate 204. For example, the thickness of the clamping member 10 can be 1.5mm, 1.64mm, 1.72mm, 1.87mm, 1.95mm, or 2.0mm. If the thickness of the clamping member 10 is too thick, for example, 3mm, it will result in excessively high cost. If the thickness of the clamping member 10 is too thin, for example, 1mm, it will result in poor impact resistance, insufficient mechanical strength, and easy deformation or cracking.
[0043] Thus, the thickness of the clamping member 10 is within the thickness range of [1.5mm, 2.0mm], which can ensure that the clamping member 10 can stably clamp the steel frame 200 without deformation or cracking, and at the same time reduce the cost of the clamping member 10.
[0044] Please see Figure 1 In some embodiments, the clamping plate 12 extends toward the direction of the snap-on plate 13 and the direction of the protective plate 11, so that a receiving space is formed between the clamping plate 12 and the protective plate 11 to accommodate the top plate 201 of the steel frame 200.
[0045] After the clamping plate 12 extends, it forms an abutment portion 121. The distance between the abutment portion 121 and the protective plate 11 is less than the thickness of the top plate 201, so that the abutment portion 121 and the protective plate 11 can stably clamp the top plate 201. At this time, the distance between the abutment portion 121 and the protective plate 11 can be less than or equal to a preset distance threshold. The preset distance threshold is the distance between the abutment portion 121 and the protective plate 11 that ensures the abutment portion 121 can stably clamp the top plate 201. For example, the preset distance threshold is within the distance range [0, 2 mm], such as 0, 0.5 mm, 0.8 mm, 1.0 mm, 1.6 mm, or 2.0 mm. If the distance is too large, for example, 3 mm, it may cause the abutment portion 121 to have difficulty stably clamping the steel frame 200. The distance between the end of the contact portion 121 away from the connecting plate 122 and the protective plate 11 is within the range of [0, 2mm], which can ensure that the contact portion 121 can stably clamp the steel frame 200.
[0046] Please see Figure 1 In some embodiments, the clamping plate 12 includes a connecting plate 122 and an abutment plate 123. Along the direction from the protective plate 11 toward the clamping plate 12, the cross-section of the connecting plate 122 is arc-shaped, and the cross-section of the abutment plate 123 is straight. The two opposite ends of the connecting plate 122 are connected to the protective plate 11 and the abutment plate 123, respectively. The center of the connecting plate 122 is oriented toward the middle of the protective plate 11. The abutment plate 123 extends from the connecting plate 122 toward the middle of the protective plate 11. Along the direction from the abutment plate 123 toward the snap-fit plate 13, the distance between the abutment plate 123 and the protective plate 11 gradually decreases, and the end of the abutment plate 123 away from the connecting plate 122 forms an abutment portion 121.
[0047] Specifically, along the direction from the protective plate 11 toward the clamping plate 12, the cross-section of the connecting plate 122 is arc-shaped, ensuring that a certain accommodating space can be formed between the connecting plate 122 and the protective plate 11 to accommodate the steel frame 200. Simultaneously, the center of the arc faces the middle of the protective plate 11, allowing the connecting plate 122 to extend toward the middle of the protective plate 11, ensuring that the abutment plate 123 connected to the connecting plate 122 can be opposite to the protective plate 11, so that the abutment plate 123 and the protective plate 11 can cooperate to clamp the steel frame 200.
[0048] Along the direction from the protective plate 11 toward the clamping plate 12, the cross-section of the abutment plate 123 is linear, and along the direction from the clamping plate 12 toward the snap-on plate 13, the distance between the abutment plate 123 and the protective plate 11 gradually decreases, so as to ensure that along the direction from the clamping plate 12 toward the snap-on plate 13, the distance between the abutment plate 123 and the protective plate 11 can be reduced to below a preset distance threshold, so that an abutment portion 121 is formed at the end of the abutment plate 123 away from the connecting plate 122, so that the abutment portion 121 can abut against and stably clamp the steel frame 200 to prevent the clamping member 10 from falling off.
[0049] One end of the connecting plate 122 is connected to the protective plate 11, and the other end of the connecting plate 122 is connected to one end of the abutment plate 123, so that a certain accommodating space is formed between the connecting plate 122 and the protective plate 11, and between the abutment plate 123 and the protective plate 11, so as to accommodate and clamp the steel frame 200.
[0050] Please see Figure 1 In some embodiments, the clamping plate 12 further includes an extension plate 124, which is connected to the end of the abutment plate 123 away from the connecting plate 122 to form an abutment portion 121; the distance between the extension plate 124 and the protective plate 11 gradually increases along the direction of the clamping plate 12 toward the snap-fit plate 13.
[0051] Specifically, the extension plate 124 is connected to the contact portion 121, and the distance between the extension plate 124 and the protective plate 11 gradually increases, so that when the steel frame 200 contacts the extension plate 124, as the steel frame 200 moves along the buckle plate 13 toward the clamping plate 12, the extension plate 124 contacts the steel frame 200 and is pushed open by the steel frame 200, so as to drive the contact portion 121 to move away from the protective plate 11, so that the steel frame 200 can smoothly extend into the receiving space between the connecting plate 122 and the protective plate 11, and between the contact portion 121 and the protective plate 11.
[0052] Meanwhile, the position where the extension plate 124 connects to the contact portion 121 forms a contact portion 121 with a distance from the protective plate 11 less than a preset distance threshold. The extension plate 124 further enhances the clamping ability of the contact portion 121 on the top plate 201 of the steel frame 200, ensuring that the corner protector 100 will not fall off the steel frame 200. Furthermore, the portion of the contact portion 121 that contacts the top plate 201 is a smooth arc shape, ensuring that the contact portion 121 will not damage the top plate 201 when it contacts it.
[0053] Please see Figure 1In some embodiments, the snap-on plate 13 extends away from the protective plate 11 and is opposite to the clamping plate 12, such that the snap-on plate 13 and the clamping plate 12 can jointly clamp the steel frame 200. The angle between the snap-on plate 13 and the protective plate 11 is less than 90°, for example, 70°, 75°, 81°, 83°, 85°, 87° or 89°.
[0054] It is understandable that if the angle between the buckle plate 13 and the protective plate 11 is greater than 90°, for example, 95°, then the buckle plate 13 extends in the direction away from the clamping plate 12, making it impossible for the buckle plate 13 to clamp the side 2021 of the steel frame 200. Therefore, an angle of less than 90° between the buckle plate 13 and the protective plate 11 allows the buckle plate 13 to have an inwardly extending arc, thereby enabling the buckle plate 13 to stably fix the side 2021 of the steel frame 200, ensuring that the clamping member 10 can stably clamp the steel frame 200.
[0055] Furthermore, in some embodiments, the angle between the snap-fit plate 13 and the protective plate 11 is within the angle range [85°, 90°), for example, 85°, 86°, 87°, 88°, or 89°. If the angle between the snap-fit plate 13 and the protective plate 11 is too large, for example, 100°, the snap-fit plate 13 will not be able to stably snap the side 2021 of the steel frame 200. If the angle between the snap-fit plate 13 and the protective plate 11 is too small, the inward arc of the snap-fit plate 13 will be too large, which may easily damage the side 2021 of the steel frame 200. Thus, the angle between the snap-fit plate 13 and the protective plate 11 being within the angle range [85°, 90°] can further enhance the clamping effect of the snap-fit plate 13 on the side 2021 of the steel frame 200, thereby further enhancing the bonding strength between the corner protector 100 and the steel frame 200, while also ensuring the safety of the side 2021 of the steel frame 200.
[0056] Please see Figure 1 In some embodiments, the soft layer 20 is made of a flexible material, such as thermoplastic vulcanizate (TPV) or polypropylene (PP), and has a high coefficient of friction, providing greater frictional force. The soft layer 20 is disposed on the surfaces of the protective plate 11 and the clamping plate 12 opposite to each other.
[0057] It should be noted that when the soft layer 20 is made of a soft material and the clamping member 10 is made of a hard material, the two materials can be joined together by melting and chemical reaction to avoid delamination.
[0058] After the steel frame 200 and photovoltaic panel 300 are assembled, a photovoltaic module can be formed. Then, the corner protectors 100 are installed on the steel frame 200, and the photovoltaic module and corner protectors 100 form a photovoltaic module. When the photovoltaic modules are stacked, the a-side of the steel frame 200 of the upper photovoltaic module abuts against the corner protector 100 of the lower photovoltaic module. The corner protectors 100 provide greater friction, thus preventing slippage between multiple photovoltaic modules and avoiding damage to the outer surface protective layer of the steel frame 200, thereby ensuring the appearance and safety performance of the steel frame 200. This also ensures the manufacturing yield of the photovoltaic modules and solves the transportation and power plant operation problems associated with photovoltaic modules, promoting the rapid adoption of the steel frame 200 and achieving cost reduction and efficiency improvement.
[0059] Please see Figure 1 In some embodiments, the thickness of the flexible layer 20 is within the thickness range of [0.3 mm, 1 mm]. For example, it is 0.3 mm, 0.41 mm, 0.53 mm, 0.67 mm, 0.75 mm, 0.82 mm, 0.91 mm, or 1 mm. The thickness of the flexible layer 20 being within this range prevents relative movement between the steel frame 200 and the flexible layer 20, without affecting the stacking effect of the steel frame 200.
[0060] Please see Figure 1 In some embodiments, the coefficient of friction of the soft layer 20 away from the surface of the protective plate 11 is greater than 0.4.
[0061] Specifically, the surface of the flexible layer 20 facing away from the protective plate 11 can be roughened. Roughening refers to simplifying or optimizing the surface texture or geometric details of the flexible layer 20, resulting in a higher coefficient of friction on the surface of the flexible layer 20 facing away from the protective plate 11. For example, the coefficient of friction of the flexible layer 20 facing away from the protective plate 11 can be greater than 0.4, specifically 0.42, 0.5, 0.7, or 0.85. If the coefficient of friction is less than 0.4, such as 0.2, the frictional force provided by the flexible layer 20 will be relatively small, leading to slippage between multiple photovoltaic modules.
[0062] Thus, the rough surface of the soft layer 20 can further increase the friction between the steel frame 200 and the soft layer 20, thereby reducing the slippage of the steel frame 200. At the same time, the coefficient of friction of the surface of the soft layer 20 is greater than 0.4, which ensures that the soft layer 20 can provide sufficient friction to reduce the slippage of the steel frame 200, thereby ensuring the appearance and safety performance of the steel frame 200.
[0063] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the stated features. In the description of this application, "multiple" means at least two, such as two or three, unless otherwise explicitly specified.
[0065] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A corner protector for protecting a steel frame, characterized in that, The steel frame includes a top plate, the top plate includes a free end and a top surface, the steel frame also includes a side surface, the side surface being substantially perpendicularly connected to the top surface on the side away from the free end, and the corner protectors include: A clamping member includes a protective plate, a clamping plate, and a snap-on plate. The clamping plate and the snap-on plate are respectively connected to the opposite sides of the protective plate. The clamping plate extends toward the snap-on plate and the protective plate and forms an abutting portion. The clamping member is configured to be nested on the top plate. The abutting portion abuts the top plate against the protective plate. The snap-on plate snaps onto the side to fix the free end. A soft layer is disposed on the surfaces of the protective plate and the clamping plate opposite to each other.
2. The corner protector according to claim 1, characterized in that, The clamping element is made of polyvinyl chloride or polypropylene.
3. The corner protector according to claim 1, characterized in that, The width of the clamping member is within the width range of [40mm, 80mm].
4. The corner protector according to claim 1, characterized in that, The thickness of the clamping element is within the range of [1.5mm, 2.0mm].
5. The corner protector according to claim 1, characterized in that, The clamping plate includes a connecting plate and an abutment plate. Along the direction from the protective plate toward the clamping plate, the cross-section of the connecting plate is arc-shaped, and the cross-section of the abutment plate is straight. The two opposite ends of the connecting plate are connected to the protective plate and the abutment plate, respectively. The center of the connecting plate faces the middle of the protective plate. The abutment plate extends from the connecting plate toward the middle of the protective plate. Along the direction from the abutment plate toward the buckle plate, the distance between the abutment plate and the protective plate gradually decreases, and the end of the abutment plate away from the connecting plate forms the abutment portion.
6. The corner protector according to claim 5, characterized in that, The clamping plate further includes an extension plate, which is connected to the end of the abutment plate away from the connecting plate to form the abutment portion; the distance between the extension plate and the protective plate gradually increases along the direction of the clamping plate toward the buckle plate.
7. The corner protector according to claim 1, characterized in that, The buckle plate extends away from the protective plate and is opposite to the clamping plate, with the angle between the buckle plate and the protective plate being less than 90°.
8. The corner protector according to claim 7, characterized in that, The angle between the buckle plate and the protective plate is within the angle range of [85°, 90°].
9. The corner protector according to claim 1, characterized in that, The soft layer is made of thermoplastic vulcanized rubber or polypropylene.
10. The corner protector according to claim 1, characterized in that, The thickness of the soft layer is within the range of [0.3 mm, 1 mm].
11. The corner protector according to claim 1, characterized in that, The coefficient of friction of the soft layer on the surface away from the protective plate is greater than 0.4.