Clamping device of photovoltaic module and photovoltaic roof system

Abstract

The embodiment of the utility model discloses a photovoltaic module clamping device and a photovoltaic roof system.The photovoltaic module clamping device comprises a fixing assembly, the fixing assembly comprises a fixing base, the fixing base comprises a fixing main body part and bearing parts, the bearing parts extend from the two sides of the fixing main body part to the adjacent photovoltaic modules respectively, and the fixing main body part and the bearing parts are arranged on the fixing main body part; the fixed main body part is provided with an accommodating cavity which is suitable for accommodating a metal rib; the mounting assembly comprises a first pressing plate and a second pressing plate, the first pressing plate is adjustably connected to the bearing part on one side of the fixed seat, a first clamping area is defined between the first pressing plate and the bearing part, the first clamping area is suitable for clamping the photovoltaic module, the second pressing plate is detachably connected to the fixed main body part, and the second clamping area is suitable for clamping the photovoltaic module. The second pressing plate faces the bearing part on the other side of the fixing base, a second clamping area is defined between the second pressing plate and the bearing part, and the second clamping area reversely clamps the photovoltaic module on the other side relative to the first clamping area.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic module production, and in particular to a clamping device for photovoltaic modules and a photovoltaic roofing system. Background Art

[0002] Building Integrated Photovoltaic (BIPV) uses photovoltaic modules as building components or building materials, making them part of the building while also having the function of generating electricity. BIPV can avoid occupying too much land resources, which is particularly important for urban buildings with expensive land. BIPV converts solar energy into electrical energy, which can reduce the comprehensive outdoor temperature and play a role in peak shaving for the power grid, achieving the effect of building energy conservation.

[0003] In related technologies, frameless photovoltaic modules are bonded to metal tiles through structural adhesives, or clamps are used to connect the frames of photovoltaic modules and metal tiles, and fasteners are used for fixation.

[0004] Regarding the above related technologies, the inventors believe that there are defects as follows: Fixing the photovoltaic module to the metal tile by bonding causes great difficulties in installation and disassembly, and the bonding quality of the structural adhesive is greatly affected by the on-site environment, which is not conducive to quality control. When using clamps and fasteners for connection, since the stress area of fasteners such as bolts and screws is small, the wind uplift resistance is weak, and there is a hidden danger that the photovoltaic module may be lifted by the wind. Summary of the Invention

[0005] One or more embodiments of the present application provide a clamping device for photovoltaic modules to solve or at least partially alleviate the problems of difficult installation, disassembly, and weak wind uplift resistance in related technologies.

[0006] One or more embodiments of the present application provide a photovoltaic roofing system having the above-mentioned clamping device for photovoltaic modules.

[0007] In the first aspect of the present application, there is provided a clamping device for photovoltaic modules, adopting the following technical solution:

[0008] A clamping device for a photovoltaic module, comprising: a fixing component, the fixing component includes a fixing seat, the fixing seat includes a fixing main body portion and a bearing portion, the bearing portion extends from both sides of the fixing main body portion towards the adjacent photovoltaic module respectively, the fixing main body portion is provided with a receiving cavity, and the receiving cavity is adapted to accommodate a metal rib; an installation component, the installation component includes a first pressing plate and a second pressing plate, the first pressing plate is adjustably connected to the bearing portion on one side of the fixing seat, defining a first clamping area between the first pressing plate and the bearing portion, the first clamping area is adapted to clamp the photovoltaic module, the second pressing plate is detachably connected to the fixing main body portion, the second pressing plate faces the bearing portion on the other side of the fixing seat, defining a second clamping area between the second pressing plate and the bearing portion, and the second clamping area clamps the photovoltaic module on the other side in the opposite direction to the first clamping area.

[0009] In some embodiments, the bearing portion includes a first bearing portion and a second bearing portion, the first bearing portion and the second bearing portion respectively extend outwards in opposite directions from both sides of the fixing main body portion integrally, the first bearing portion and the first pressing plate are oppositely arranged, the first clamping area is formed between the first bearing portion and the first pressing plate, the second bearing portion and the second pressing plate are oppositely arranged, the second clamping area is formed between the second bearing portion and the second pressing plate, and the clamping directions of the first clamping area and the second clamping area are opposite.

[0010] In some embodiments, the fixing main body portion includes a locking portion and leg portions, the leg portions integrally extend downwards from both sides of the locking portion, the receiving cavity is formed between the leg portions and the locking portion, the locking portion is provided with a locking groove, and under the condition that the second pressing plate is fixedly connected to the locking groove, at least a part of the second pressing plate abuts against the locking portion.

[0011] In some embodiments, the bearing portion includes a cantilever segment and a supporting structure, the cantilever segment integrally connects the fixing main body portion and the supporting structure, the supporting structure is located at the outer end of the cantilever segment, and a rubber strip is laid on the supporting structure to support under the photovoltaic panel of the photovoltaic module.

[0012] In some embodiments, the second pressing plate includes a second supporting portion, an abutting portion and a second pressing portion, the abutting portion protrudes from one end of the second supporting portion towards the locking portion, the second pressing portion extends from the other end of the second supporting portion towards the frame of the photovoltaic module, under the condition that the second supporting portion is fixedly connected to the locking portion, the abutting portion abuts against the upper surface of the locking portion, the second pressing portion presses the frame of the photovoltaic module, and a suspension gap is defined in the space formed by the second supporting portion, the abutting portion and the locking portion.

[0013] In some embodiments, the thickness of the second support portion is denoted as h, where h ≥ 5 mm.

[0014] In some embodiments, the second bearing portion includes a second cantilever segment and a second supporting structure. The second cantilever segment extends from the leg portion on one side thereof in the direction of an adjacent photovoltaic module. The second supporting structure is located at the outer end of the second cantilever segment and is capable of supporting the photovoltaic panel of the adjacent photovoltaic module. The second cantilever segment and the second pressing portion of the second pressing plate are oppositely arranged. When the photovoltaic module is installed on the second bearing portion, the side wall of the fixed main body portion is adapted to abut against the back of the frame of the photovoltaic module, and the second pressing portion is adapted to press the top surface of the frame of the photovoltaic module.

[0015] In some embodiments, the first bearing portion includes a first cantilever segment and a first supporting structure. The first cantilever segment integrally connects the first supporting structure and one side of the fixed main body portion. The first supporting structure is located at the outer end of the first cantilever segment. The first pressing plate includes a first supporting portion and a first pressing portion. The first supporting portion extends vertically from the first pressing portion towards the first cantilever segment. The first pressing portion and the first cantilever are fixedly connected by fasteners to clamp the frame of the photovoltaic module, and the first supporting structure is capable of supporting the photovoltaic panel of the adjacent photovoltaic module.

[0016] In some embodiments, the fixed main body portion further includes a placement segment that extends and expands along the metal tile from the end of the leg portion on one side thereof. The fixing assembly further includes a clamping member that is adjustably locked in the receiving cavity such that the clamping member and the fixed seat are adapted to nest a metal rib. The clamping member is provided with a contact portion, a limiting portion, and a limiting groove. The limiting portion extends from both sides of the contact portion in a direction away from the metal rib. The limiting groove is formed between the contact portion and the limiting portion, and the notch of the limiting groove gradually decreases from outside to inside. The other leg portion and the clamping member are adjustably connected by fasteners.

[0017] In some embodiments, the clamping device for the photovoltaic module is further provided with a serrated belt, which is formed on the surface of the cantilever segment of the bearing portion and / or the contact surface of the first pressing plate and / or the contact surface of the second pressing plate and / or the contact surface of the frame of the photovoltaic module.

[0018] In the second aspect of the present application, a photovoltaic roofing system is provided, adopting the following technical solution:

[0019] A photovoltaic roofing system includes the clamping device, metal tiles, metal ribs formed by cooperation of adjacent metal tiles, and photovoltaic modules as described above. The fixed seat of the clamping device cooperates with the metal ribs so that the clamping device is installed on the metal tiles, and the photovoltaic modules are connected to the metal tiles through the clamping device.

[0020] Compared with the related art, one or more embodiments of the present application include at least one of the following beneficial technical effects:

[0021] (1) The fixing component is detachably installed on the metal tiles. Further, the installation component is detachably connected to the fixing component to form a clamping area for accommodating the side of the photovoltaic module, so that the photovoltaic module is detachably installed on the roof, and it is convenient to disassemble and replace the photovoltaic module during later maintenance.

[0022] (2) The first pressing plate is adapted to move along the cantilever section of the fixed seat. By adjusting the position of the first pressing plate, the side of the photovoltaic module can be located in the first clamping area, thereby improving the installation flexibility, facilitating avoiding the first pressing plate and the second pressing plate from squeezing the photovoltaic module and causing hidden cracks in the photovoltaic panel, and at the same time reducing the installation difficulty and improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application and do not limit the present application.

[0024] Figure 1 FIG. 18 is a schematic structural diagram in the front view direction of a photovoltaic roofing system according to some embodiments of the present application.

[0025] Figure 2 For the Figure 1 magnified schematic view of the partial area A in the present application.

[0026] Figure 3 FIG. 28 is a schematic structural diagram of a clamping device for a photovoltaic module according to some embodiments of the present application.

[0027] Figure 4 FIG. 32 is a schematic structural diagram of a fixing component of a clamping device for a photovoltaic module according to some embodiments of the present application.

[0028] Figure 5 FIG. 36 is a schematic structural diagram of a clamping member of a clamping device for a photovoltaic module according to some embodiments of the present application.

[0029] Figure 6 FIG. 40 is a schematic structural diagram of a first pressing plate of a clamping device for a photovoltaic module according to some embodiments of the present application.

[0030] Figure 7 Schematic structural diagram of the second pressing plate of the clamping device for a photovoltaic module according to some embodiments of the present application.

[0031] Figure 8 Schematic structural diagram of the frame of a photovoltaic module according to some embodiments of the present application.

[0032] In the figure: 1. Fixing component; 10. Fixing base; 11. Fixing main body part; 111. Leg part; 112. Placing section; 113. Accommodating cavity; 12. Locking part; 121. Placing platform; 122. Locking groove; 123. Material-reducing groove; 13. Carrying part; 131. Cantilever section; 132. Supporting structure; 14. First carrying part; 141. First cantilever section; 142. Adjusting groove; 143. First supporting structure; 15. Second carrying part; 151. Second cantilever section; 152. Second supporting structure; 20. Clamping piece; 21. Contact part; 22. Limiting part; 221. Guiding surface; 23. Limiting groove; 2. Mounting component; 30. First pressing plate; 31. First supporting part; 32. First pressing part; 33. First clamping area; 40. Second pressing plate; 41. Second supporting part; 411. Abutting part; 42. Second pressing part; 43. Second clamping area; 44. Suspension gap; 50. Serrated belt; 61. First fastener; 62. Second fastener; 63. Third fastener; 631. Spring washer; 70. Rubber strip; 80. Photovoltaic module; 81. Photovoltaic panel; 82. Frame; 91. Connecting support; 92. Metal tile; 93. Metal rib. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings showing multiple embodiments of the present application. It should be understood that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0034] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including", "comprising", "having", "possessing", "containing", "including", etc. in the description and claims of this application and the above drawings are open-ended terms. Therefore, a method or apparatus "including", "comprising", "having", for example, one or more steps or elements has one or more steps or elements, but is not limited to only having these one or more elements. The terms "first", "second", etc. in the description and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship. In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise stated, the meaning of "plurality" is two or more.

[0035] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to this application.

[0036] Figure 2 Schematic diagram of a clamping device for a photovoltaic module 80 according to some embodiments of this application.

[0037] One or more embodiments of this application disclose a clamping device for a photovoltaic module. Refer to Figures 2 to 4, the clamping device of the photovoltaic module 80 includes a fixing component 1 and a mounting component 2. The fixing component 1 includes a fixing base 10, and the fixing base 10 includes a fixing main body portion 11 and a bearing portion 13. The bearing portion 13 extends from both sides of the fixing main body portion 11 towards the adjacent photovoltaic module 80 respectively. The fixing main body portion 11 is provided with a receiving cavity 113, and the receiving cavity 113 is adapted to accommodate the metal rib 93. The mounting component 2 includes a first pressing plate 30 and a second pressing plate 40. The first pressing plate 30 is adjustably connected to the bearing portion 13 of the fixing base 10 on one side. The first pressing plate 30 and the bearing portion 13 are oppositely arranged and define a first clamping area 33. The first clamping area 33 is adapted to clamp the photovoltaic module 80. The second pressing plate 40 is detachably connected to the fixing main body portion 11. The second pressing plate 40 faces the bearing portion 13 on the other side of the fixing base 10, and a second clamping area 43 is defined between the second pressing plate 40 and the bearing portion 13 opposite thereto. The second clamping area 43 clamps the photovoltaic module 80 on the other side in the opposite direction to the first clamping area 33.

[0038] That is to say, under the condition that the fixing base 10 is placed on the connecting support 91, the metal rib 93 is accommodated in the receiving cavity 113 of the fixing main body portion 11, so that the fixing base 10 is installed and fixed on the metal tile 92. Further, the two sides of the fixing base 10 are respectively provided with bearing portions 13, and the two bearing portions 13 extend away from each other from both sides of the fixing main body portion 11, so as to support the adjacent two sides of the two adjacent photovoltaic modules 80 located on both sides of the fixing base 10. Further still, the first pressing plate 30 is adjustably and fixedly connected to one of the bearing portions 13, and a first clamping area 33 is formed between the first pressing plate 30 and one of the bearing portions 13. The opening direction of the first clamping area 33 faces away from the fixing main body portion 11 to be adapted to accommodate the side edge of a photovoltaic module 80. The second pressing plate 40 is detachably and fixedly connected to the fixing main body portion 11. Wherein, one end of the second pressing plate 40 abuts against the fixing main body portion 11, and the other end of the second pressing plate 40 extends in a direction away from the first pressing plate 30 to be oppositely arranged with the other bearing portion 13, so as to form a second clamping area 43 between the second pressing plate 40 and the other bearing portion 13. The opening direction of the second clamping area 43 faces away from the fixing main body portion 11 to be adapted to accommodate the side edge of another photovoltaic module 80.

[0039] It can be understood that the fixing component 1 is detachably installed on the metal tile 92. Further, the mounting component 2 is detachably connected to the fixing component 1 to form a first clamping area 33 and a second clamping area 43 for accommodating the side edges of the photovoltaic module 80, so that the photovoltaic module 80 can be detachably installed on the roof and is convenient for disassembly and replacement of the photovoltaic module 80 during later maintenance.

[0040] In some embodiments, referring to Figure 3 and Figure 4, the bearing part 13 includes a first bearing part 14 and a second bearing part 15. The first bearing part 14 and the second bearing part 15 respectively extend outwards in opposite directions integrally from both sides of the fixed main body part 11. The first bearing part 14 and the first pressing plate 30 are arranged opposite to each other, and a first clamping area 33 is formed between the first bearing part 14 and the first pressing plate 30. The second bearing part 15 and the second pressing plate 40 are arranged opposite to each other, and a second clamping area 43 is formed between the second bearing part 15 and the second pressing plate 40. The clamping directions of the first clamping area 33 and the second clamping area 43 are opposite.

[0041] That is to say, the first bearing part 14 and the second bearing part 15 respectively extend from both sides of the fixed main body part 11 in opposite directions away from each other, and the first bearing part 14 is adapted to be adjustably connected to the first pressing plate 30 to form a first clamping area 33 for clamping the side edge of the photovoltaic module 80. The second bearing part 15 is adapted to be arranged opposite to the second pressing plate 40 to form a second clamping area 43 for clamping the side edge of the photovoltaic module 80. It can be understood that through the first pressing plate 30 and the second pressing plate 40, the adjacent two side edges of the two adjacent photovoltaic modules 80 are respectively fixedly connected to the same fixing seat 10.

[0042] In some embodiments, referring to Figure 4 , the fixed main body part 11 includes a locking part 12 and a leg part 111. The leg part 111 extends integrally downward from both sides of the locking part 12, and a receiving cavity 113 is formed between the leg part 111 and the locking part 12. The locking part 12 is provided with a locking groove 122. Under the condition that the second pressing plate 40 is fixedly connected to the locking groove 122, at least part of the second pressing plate 40 abuts against the locking part 12.

[0043] It can be understood that the leg part 111 is used to support the locking part 12 so that the locking part 12 is located above the metal rib 93, and a receiving cavity 113 is formed between the leg part 111 and the locking part 12 to accommodate the metal rib 93. Further, a placing platform 121 is formed on the upper surface of the locking part 12. Under the condition that the second pressing plate 40 is fixedly connected to the locking part 12 through the second fastener 62, at least part of the second pressing plate 40 abuts against the placing platform 121.

[0044] In at least one embodiment, referring to Figure 3 , the second fastener 62 includes a bolt and a nut. Specifically, the head of the bolt is adapted to be embedded in the locking groove 122, the rod part of the bolt passes out of the opening of the locking groove 122 and passes through the second pressing plate 40. Further, a nut is tightened on the rod part of the bolt, so that the second pressing plate 40 is fixedly connected to the locking part 12.

[0045] In some embodiments, referring to Figure 4, the locking portion 12 further has a hollowed-out material-reducing groove 123, which can reduce the weight of the locking portion 12, and thus is beneficial to reducing the total weight of the photovoltaic roofing system and reducing the load of the photovoltaic roofing system on the building roof. At the same time, setting the material-reducing groove 123 can reduce the volume of the locking portion 12, which is beneficial to saving materials and reducing costs.

[0046] In some embodiments, referring to Figure 3 , the bearing portion 13 includes a cantilever segment 131 and a supporting structure 132. The cantilever segment 131 integrally connects and fixes the main body portion 11 and the supporting structure 132. The supporting structure 132 is located at the outer end of the cantilever segment 131. A rubber strip 70 is laid on the supporting structure 132, so as to support under the photovoltaic panel 81 of the photovoltaic module 80. That is to say, when the photovoltaic module 80 is installed on the fixing seat 10, the supporting structure 132 extends under the photovoltaic module 80 to support the photovoltaic module 80. In at least one embodiment, the supporting structure 132 abuts against the photovoltaic panel 81 of the photovoltaic module 80.

[0047] In some embodiments, referring to Figure 7 , the second pressing plate 40 includes a second supporting portion 41, an abutting portion 411 and a second pressing portion 42. The abutting portion 411 protrudes from one end of the second supporting portion 41 towards the locking portion 12, and the second pressing portion 42 extends from the other end of the second supporting portion 41 towards the frame 82 of the photovoltaic module 80. When the second supporting portion 41 is fixedly connected to the locking portion 12, the abutting portion 411 abuts against the upper surface of the locking portion 12, and the second pressing portion 42 presses the frame 82 of the photovoltaic module 80. A suspended space gap 44 is defined in the space formed by the second supporting portion 41, the abutting portion 411 and the locking portion 12. That is to say, a suspended space gap 44 is formed between the second supporting portion 41, the abutting portion 411 and the locking portion 12.

[0048] It can be understood that referring to Figure 3, the abutting portion 411 of the second pressing plate 40 abuts against the placing platform 121 of the locking portion 12, and the second supporting portion 41 bends and extends from the abutting portion 411 toward the second cantilever section 151 of the fixed seat 10, so that the second pressing portion 42 and the second cantilever section 151 are arranged opposite to each other to form a second clamping area 43. It can be understood that when the second pressing plate 40 is installed on the fixed seat 10 to clamp the photovoltaic module 80, one end of the second pressing plate 40 abuts against the placing platform 121 through the abutting portion 411, and the other end of the second pressing plate 40 abuts against the frame 82 of the photovoltaic module 80 through the second pressing portion 42, and thus the second pressing plate 40 is supported by the placing platform 121 and the frame 82. Further, a suspension gap 44 is formed between the second supporting portion 41 and the placing platform 121. When the second fastener 62 fixedly connects the second supporting portion 41 and the locking portion 12, the second supporting portion 41 can be elastically deformed and move closer to the placing platform 121, and thus the photovoltaic module 80 can be clamped between the second pressing portion 42 and the supporting structure 132 of the second bearing portion 15.

[0049] It is worth mentioning that, along the extending direction of the second supporting portion 41, the distance between the second pressing portion 42 and the locking portion 12 is 0.3 mm to 1 mm. That is to say, there is a gap between the side surfaces of the second pressing portion 42 and the locking portion 12, which is beneficial to avoiding interference between the second pressing portion 42 and the locking portion 12, reducing the manufacturing precision requirements for the second pressing plate 40. In addition, it is also beneficial to avoid low structural strength caused by too long extension of the second supporting portion 41. In at least one embodiment, the distance between the second pressing portion 42 and the locking portion 12 is 0.5 mm.

[0050] In some embodiments, referring to Figure 7 , the thickness of the second supporting portion 41 of the second pressing plate 40 (referring to the vertical direction in Figure 7 ) is denoted as h, and h≥5 mm, which can improve the structural strength of the second supporting portion 41, and thus is beneficial to improving the clamping reliability of the second pressing plate 40 and the fixed seat 10 on the photovoltaic module 80. In at least one embodiment, the thickness of the abutting portion 411 (referring to the horizontal direction in Figure 7 ) and the thickness of the second pressing portion 42 (referring to the vertical direction in Figure 7 ) are both greater than or equal to 5 mm, and the overall thickness of the second pressing plate 40 is basically uniform, which is beneficial to reducing the risk of casting defects and further improving the structural strength of the second pressing plate 40.

[0051] Furthermore, referring to Figure 2 、 Figure 3 and Figure 7, the end of the second pressing part 42 bends and extends towards the photovoltaic module 80, thereby covering the top surface of the frame 82 of the photovoltaic module 80, which is beneficial to improving the wrapping property of the second pressing plate 40 on the frame 82 of the photovoltaic module 80, reducing the risk of the photovoltaic module 80 disengaging from the second pressing plate 40 under the action of wind uplift force, and improving the wind uplift resistance performance.

[0052] In some embodiments, referring to Figure 4 , the second bearing part 15 includes a second cantilever segment 151 and a second supporting structure 152. The second cantilever segment 151 extends from the leg part 111 on one side thereof in the direction of the adjacent photovoltaic module 80. The second supporting structure 152 is located at the outer end of the second cantilever segment 151. The second supporting structure 152 can support the photovoltaic panel 81 of the adjacent photovoltaic module 80. The second cantilever segment 151 and the second pressing part 42 of the second pressing plate 40 are arranged oppositely. When the photovoltaic module 80 is installed on the second bearing part 15, the side wall of the fixed main body part 11 is adapted to abut against the back of the frame 82 of the photovoltaic module 80, and the second pressing part 42 is adapted to press the top surface of the frame 82 of the photovoltaic module 80.

[0053] That is to say, when the photovoltaic module 80 is clamped between the second pressing part 42 and the second supporting structure 152, the frame 82 of the photovoltaic module 80 is adapted to abut against the side wall of the fixed main body part 11, which is beneficial to quickly determining the installation position of the photovoltaic module 80 during installation and improving the construction efficiency. In addition, the frame 82 of the photovoltaic module 80 abuts against the side wall of the fixed main body part 11, which is also beneficial to reducing the wind uplift force received by the edge of the photovoltaic module 80, and the top plate surface of the frame 82 is pressed by the second pressing part 42 of the second pressing plate 40, which is beneficial to improving the wind uplift resistance performance.

[0054] In some embodiments, referring to Figure 4 , the first bearing part 14 includes a first cantilever segment 141 and a first supporting structure 143. The first cantilever segment 141 integrally connects the first supporting structure 143 and one side of the fixed main body part 11. The first supporting structure 143 is located at the outer end of the first cantilever segment 141. The first pressing plate 30 includes a first supporting part 31 and a first pressing part 32. The first supporting part 31 extends vertically from the first pressing part 32 towards the first cantilever segment 141. The first pressing part 32 and the first cantilever segment 141 are fixedly connected by fasteners to clamp the frame 82 of the photovoltaic module 80, and the first supporting structure 143 can support the photovoltaic panel 81 of the adjacent photovoltaic module 80.

[0055] It can be understood that the first pressing plate 30 includes a first pressing portion 32 and a first supporting portion 31. A semi-enclosed first clamping area 33 is formed between the first pressing portion 32, the first supporting portion 31 and the first cantilever segment 141. The side of the photovoltaic module 80 is placed in the first clamping area 33, and the top of the frame 82 of the photovoltaic module 80 abuts against the first pressing portion 32 of the first pressing plate 30. Further, the lower surface of the photovoltaic panel 81 of the photovoltaic module 80 abuts against the first supporting structure 143. Thus, the photovoltaic module 80 can be detachably connected and fixed to the fixing base 10 through the first pressing plate 30. Furthermore, a first fastener 61 is passed through the first clamping area 33 to detachably connect the first pressing plate 30 to the fixing base 10. It is worth mentioning that the frame 82 of the photovoltaic module 80 is located at the opening of the first clamping area 33, and the first fastener 61 passes through the middle of the first clamping area 33, which is convenient for assembling and fastening the first pressing plate 30 and the first cantilever segment 141, and can reduce the interference between the first fastener 61 and the frame 82.

[0056] It is worth mentioning that with reference to Figure 4 , the first cantilever segment 141 has an adjustment groove 142 which extends along the extension direction of the first cantilever segment 141, so that the first fastener 61 can move along the first cantilever segment 141. Thus, the first pressing plate 30 is adapted to move along the first cantilever segment 141 of the fixing base 10. By adjusting the position of the first pressing plate 30, the side of the photovoltaic module 80 can be located in the first clamping area 33, which can improve the installation flexibility, is beneficial to avoiding the first pressing plate 30 and the second pressing plate 40 from squeezing the photovoltaic module 80 and causing the photovoltaic panel 81 to have hidden cracks, and can reduce the installation difficulty and improve the construction efficiency.

[0057] Specifically, during the installation process, first, one side of the photovoltaic module 80 is abutted against the side wall of the fixed main body portion 11, so that one side of the photovoltaic module 80 is received in the second clamping area 43. Further, the second fastener 62 is tightened, so that the second pressing portion 42 of the second pressing plate 40 and the second supporting structure 152 of the fixed seat 10 jointly clamp one side of the photovoltaic module 80. It can be understood that the side wall of the fixed main body portion 11 assists in positioning the installation position of the photovoltaic module 80, which is beneficial to solving the problem that it is difficult to align the photovoltaic module 80 under the condition of multiple-person construction adjustment members. Furthermore, on the basis of ensuring the installation efficiency, it is beneficial to improve the accuracy of the installation position of the photovoltaic module 80 and the neatness of the photovoltaic roof system. Further, the other side of the photovoltaic module 80 is clamped and fixed by the adjustable first pressing plate 30, so that the frame 82 of the other side of the photovoltaic module 80 is adapted to abut against the first pressing portion 32 of the first pressing plate 30. It can be understood that by adjusting the position of the first pressing plate 30, the distance between the first pressing plate 30 and the second pressing plate 40 can be adapted to the width of the photovoltaic module 80, improving the installation flexibility and being beneficial to avoiding the first pressing plate 30 and the second pressing plate 40 from squeezing the photovoltaic module 80 and causing the photovoltaic panel 81 to have hidden cracks.

[0058] In some embodiments, referring to Figure 4 and Figure 5 , the fixed main body portion 11 further includes a placement section 112, and the placement section 112 extends along the metal tile 92 from the end of one of its side legs 111. The fixing assembly 1 further includes a clamping member 20, and the clamping member 20 is adjustably locked in the receiving cavity 113, so that the clamping member 20 and the fixed seat 10 are adapted to nest the metal rib 93. The clamping member 20 is provided with a contact portion 21, a limiting portion 22 and a limiting groove 23. The limiting portion 22 extends from both sides of the contact portion 21 in a direction away from the metal rib 93, and the limiting groove 23 is formed between the contact portion 21 and the limiting portion 22. The notch of the limiting groove 23 gradually decreases from the outside to the inside. The other side leg 111 and the clamping member 20 are adjustably connected by a fastener.

[0059] It can be understood that the placement section 112 extends along the metal tile 92 from one of the side legs 111, and the placement section 112 is in contact with the metal tile 92, so as to increase the contact area between the fixed seat 10 and the metal tile 92, and make the fixed seat 10 more stably arranged above the connecting support 91.

[0060] Further, under the condition that the fixing base 10 is installed on the connecting support 91, the accommodating cavity 113 of the fixing base 10 is adapted to accommodate the metal rib 93 of the metal tile 92 and the clamping member 20, and the metal rib 93 is located between the fixing base 10 and the clamping member 20. The third fastener 63 is adapted to be threadedly connected to the fixing base 10, and one end of the third fastener 63 abuts against the clamping member 20. By adjusting the third fastener 63, the third fastener 63 can be made to push the clamping member 20 to move towards the metal rib 93, so that the metal rib 93 is clamped between the fixing base 10 and the clamping member 20, so that the fixing assembly 1 is installed on the connecting support 91 and connected to the metal rib 93.

[0061] Compared with the third fastener 63 directly abutting against the vertical portion of the metal rib 93, in this embodiment, a clamping member 20 is provided between the third fastener 63 and the metal rib 93. By the contact portion 21 of the clamping member 20 abutting against the vertical portion of the metal rib 93, the contact area can be increased, and the wear of the metal rib 93 caused by the rotation of the third fastener 63 can be reduced, so as to improve the connection reliability between the fixing assembly 1 and the metal rib 93. The limiting portion 22 extends from both sides of the contact portion 21 in a direction away from the vertical portion of the metal rib 93, so as to form a limiting groove 23 between the contact portion 21 and the limiting portion 22. The limiting groove 23 can accommodate the third fastener 63, which is beneficial to align the third fastener 63 with the clamping member 20 during installation, facilitating operation, and the limiting portion 22 can protect the third fastener 63. Further, the horizontal portion of the metal rib 93 is clamped between the limiting portion 22 and the fixed main body portion 11, which can improve the connection reliability between the installation device of the photovoltaic module 80 and the metal rib 93. Furthermore, an inclined guiding surface 221 is provided at the opening of the limiting portion 22, so that the notch of the limiting groove 23 gradually increases from inside to outside, which can play a guiding role and facilitate the third fastener 63 to enter the limiting groove 23.

[0062] Further, the fixing assembly 1 further includes a spring washer 631 adapted to the third fastener 63. The spring washer 631 is disposed between the head of the third fastener 63 and the leg portion 111 of the fixing base 10, which is beneficial to reducing the risk of loosening of the third fastener 63, so as to improve the connection reliability between the fixing assembly 1 and the metal rib 93.

[0063] In addition, during construction operations, it is difficult for construction workers to directly observe whether the clamping member 20 in the receiving cavity 113 abuts against the metal rib 93. By providing a spring washer 631 between the head of the third fastener 63 and the leg portion 111, under the condition that the third fastener 63 is tightened to force the spring washer 631 to deform, construction workers can easily judge whether the third fastener 63 is tightened by observing the deformation of the spring washer 631 and feeling the acting force of the spring washer 631 on the third fastener 63. This helps to avoid deformation of the clamping member 20 and the leg portion 111 caused by the third fastener 63 being too tight, and further prevent the second fastener 62 from being difficult to insert into the locking groove 122.

[0064] It is worth mentioning that by accommodating the metal rib 93 in the receiving cavity 113 of the fixing base 10 and clamping the metal rib 93 by the fixing base 10 and the clamping member 20, it is beneficial to improve the connection strength between two adjacent metal tiles 92, and further beneficial to improve the wind uplift resistance of the photovoltaic roofing system.

[0065] In some embodiments, referring to Figure 4 , Figures 6 to 8 , the clamping device of the photovoltaic module 80 is further provided with a serrated belt 50, and the serrated belt 50 is formed on the surface of the cantilever section 131 of the bearing portion 13 and / or the contact surface of the first pressing plate 30 and / or the contact surface of the second pressing plate 40 and / or the contact surface of the frame 82 of the photovoltaic module 80.

[0066] It can be understood that the cooperation between the serrated belts 50 enables the fixing base 10, the first pressing plate 30, the second pressing plate 40 and the photovoltaic module 80 to be limited in position and connected more tightly, which is beneficial to improving the anti-slip and anti-detachment performance. It is worth mentioning that when screwing the first fastener 61, through the mutual cooperation between the serrated belts 50, the relative rotation between the first pressing plate 30 and the photovoltaic module 80, and between the first pressing plate 30 and the first cantilever section 141 can be reduced, which is beneficial to reducing the installation difficulty and improving the construction efficiency.

[0067] In at least one embodiment, referring to Figure 4 , the serrated belt 50 is formed on the upper surface of the first cantilever section 141 of the fixing base 10 and the upper surface of the second cantilever section 151. Further, referring to Figure 8 , the serrated belt 50 is also formed on the upper side surface and / or the lower side surface of the frame 82 of the photovoltaic module 80. Further still, referring to Figure 6 , the serrated belt 50 is also formed on the lower surface of the first pressing portion 32 of the first pressing plate 30 to be adapted to cooperate with the serrated belt 50 on the frame 82 of the photovoltaic module 80, and the serrated belt 50 is also formed on the lower end surface of the first supporting portion 31 to be adapted to cooperate with the serrated belt 50 on the first cantilever section 141. Further still, referring to Figure 7, a serrated belt 50 is also formed on the lower surface of the second pressing part 42 of the second pressing plate 40 to be adapted to cooperate with the serrated belt 50 on the frame 82 of the photovoltaic module 80.

[0068] One or more embodiments of the present application also disclose a photovoltaic roofing system. Refer to Figure 1 , the photovoltaic roofing system includes the above-mentioned clamping device, metal tiles 92, metal ribs 93 formed by the cooperation of adjacent metal tiles 92 and photovoltaic modules 80. The fixed seat 10 of the clamping device cooperates with the metal rib 93 so that the clamping device is installed on the metal tile 92, and the photovoltaic module 80 is connected to the metal tile 92 through the clamping device.

[0069] In some embodiments, adjacent metal tiles 92 are connected to the connecting support 91 to form a metal rib 93, so as to connect adjacent metal tiles 92, and the metal tiles 92 are fixed to the roof purlin through the connecting support 91. Further, the metal rib 93 includes a vertical part and a horizontal part. The vertical part of the metal rib 93 is perpendicular to the upper surface of the connecting support 91, and the vertical part and the horizontal part of the metal rib 93 are arranged at an angle so that the horizontal part of the metal rib 93 is adapted to abut against the lower surface of the photovoltaic panel 81 of the photovoltaic module 80.

[0070] It can be understood that when the photovoltaic module 80 is installed on the fixed seat 10 through the installation component 2, the supporting structure 132 of the fixed seat 10 is adapted to abut against the back surface of the photovoltaic panel 81 of the photovoltaic module 80. Further, the horizontal part of the metal rib 93 is also adapted to abut against the back surface of the photovoltaic panel 81 to support the photovoltaic module 80, thereby improving the anti-load capacity of the photovoltaic module 80. It is worth mentioning that when installing and maintaining the photovoltaic roofing system, the construction personnel can step on the photovoltaic module 80, which is beneficial to avoiding setting aisles between the photovoltaic modules 80, increasing the paving area of the photovoltaic modules 80, and facilitating installation operations and maintenance and repair.

[0071] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art of this industry should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A clamping device for a photovoltaic module, characterized in that, Comprising: A fixing component, the fixing component includes a fixing base, the fixing base includes a fixing main body portion and a bearing portion, the bearing portion extends from both sides of the fixing main body portion towards the adjacent photovoltaic module respectively, the fixing main body portion is provided with a receiving cavity, and the receiving cavity is adapted to accommodate a metal rib; An installation component, the installation component includes a first pressing plate and a second pressing plate, the first pressing plate is adjustably connected to the bearing portion on one side of the fixing base, defining a first clamping area between the first pressing plate and the bearing portion, the first clamping area is adapted to clamp a photovoltaic module, the second pressing plate is detachably connected to the fixing main body portion, the second pressing plate faces the bearing portion on the other side of the fixing base, defining a second clamping area between the second pressing plate and the bearing portion, and the second clamping area clamps the photovoltaic module on the other side in the opposite direction to the first clamping area.

2. The clamping device for a photovoltaic module according to claim 1, wherein, The bearing portion includes a first bearing portion and a second bearing portion, the first bearing portion and the second bearing portion extend outwards in opposite directions from both sides of the fixing main body portion integrally, the first bearing portion and the first pressing plate are oppositely arranged, the first clamping area is formed between the first bearing portion and the first pressing plate, the second bearing portion and the second pressing plate are oppositely arranged, the second clamping area is formed between the second bearing portion and the second pressing plate, and the clamping directions of the first clamping area and the second clamping area are opposite.

3. The clamping device for a photovoltaic module according to claim 2, characterized in that, The fixing main body portion includes a locking portion and leg portions, the leg portions integrally extend downwards from both sides of the locking portion, the receiving cavity is formed between the leg portions and the locking portion, the locking portion is provided with a locking groove, and under the condition that the second pressing plate is fixedly connected to the locking groove, at least part of the second pressing plate abuts against the locking portion.

4. The clamping device for a photovoltaic module according to claim 3, wherein, The bearing portion includes a cantilever section and a supporting structure, the cantilever section integrally connects the fixing main body portion and the supporting structure, the supporting structure is located at the outer end of the cantilever section, and a rubber strip is laid on the supporting structure to support under the photovoltaic panel of the photovoltaic module.

5. The clamping device for a photovoltaic module according to claim 3, wherein, The second pressing plate includes a second supporting portion, an abutting portion and a second pressing portion, the abutting portion protrudes towards the locking portion from one end of the second supporting portion, the second pressing portion extends towards the frame of the photovoltaic module from the other end of the second supporting portion, under the condition that the second supporting portion is fixedly connected to the locking portion, the abutting portion abuts against the upper surface of the locking portion, the second pressing portion presses the frame of the photovoltaic module, and a suspension gap is defined in the space formed by the second supporting portion, the abutting portion and the locking portion.

6. The clamping device for a photovoltaic module according to claim 5, characterized in that, The thickness of the second supporting portion is denoted as h, and h≥5mm.

7. The clamping device for a photovoltaic module according to claim 5, wherein The second bearing part includes a second cantilever section and a second supporting structure. The second cantilever section extends from the leg part on one side thereof in the direction of an adjacent photovoltaic module. The second supporting structure is located at the outer end of the second cantilever section, and the second supporting structure is capable of supporting the photovoltaic panel of the adjacent photovoltaic module. The second cantilever section and the second pressing part of the second pressing plate are arranged opposite to each other. Under the condition that the photovoltaic module is installed on the second bearing part, the side wall of the fixed main body part is adapted to abut against the back of the frame of the photovoltaic module, and the second pressing part is adapted to press the top surface of the frame of the photovoltaic module.

8. The clamping device for a photovoltaic module according to any one of claims 2-7, characterized in that, The first bearing part includes a first cantilever section and a first supporting structure. The first cantilever section integrally connects the first supporting structure and one side of the fixed main body part. The first supporting structure is located at the outer end of the first cantilever section. The first pressing plate includes a first supporting part and a first pressing part. The first supporting part extends vertically from the first pressing part towards the first cantilever section. The first pressing part and the first cantilever are fixedly connected by a fastener to clamp the frame of the photovoltaic module, and the first supporting structure is capable of supporting the photovoltaic panel of the adjacent photovoltaic module.

9. The clamping device for a photovoltaic module according to any one of claims 3-7, characterized in that, The fixed main body part further includes a placement section which extends and expands along the metal tile from the end of the leg part on one side thereof. The fixing assembly further includes a clamping member which is adjustably locked in the receiving cavity such that the clamping member and the fixed seat are adapted to nest a metal rib. The clamping member is provided with a contact part, a limiting part and a limiting groove. The limiting part extends from both sides of the contact part in a direction away from the metal rib, and the limiting groove is formed between the contact part and the limiting part. The notch of the limiting groove gradually decreases from outside to inside. The leg part on the other side and the clamping member are adjustably connected by a fastener.

10. The clamping device for a photovoltaic module according to any one of claims 4-7, characterized in that, It is further provided with a serrated belt which is formed on the surface of the cantilever section of the bearing part and / or the contact surface of the first pressing plate and / or the contact surface of the second pressing plate and / or the contact surface of the frame of the photovoltaic module.

11. A photovoltaic roofing system, characterized in that, It includes the clamping device as described in any one of claims 1-10, a metal tile, a metal rib formed by the cooperation of adjacent metal tiles and a photovoltaic module. The fixed seat of the clamping device cooperates with the metal rib so that the clamping device is installed on the metal tile, and the photovoltaic module is connected to the metal tile through the clamping device.

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