Photovoltaic module frame, photovoltaic module and mounting structure

Abstract

The invention belongs to the technical field of photovoltaic modules, and particularly relates to a photovoltaic module frame, a photovoltaic module and a mounting structure. The photovoltaic module frame is composed of a pair of first frames and a pair of second frames, the first frames and the second frames are provided with the same cavities and packaging grooves, and a pair of installation clamping grooves is further formed in the lower portion of each second frame. The bottom of the photovoltaic module is provided with a first purline and a second purline which are clamped with the installation clamping grooves in a matched mode, the first purline and the second purline serve as an installation structure of the photovoltaic module, and the purlines and the installation clamping grooves are connected through sliding rails on the purlines or fastened through pressing strips on the purlines. Compared with the prior art, installation is easy and convenient, the installation efficiency is high, and the installation cost is reduced; the contact area between the photovoltaic module and the purline is increased, so that the installation is firmer; dismounting of the photovoltaic modules in batches is facilitated, and the operation and maintenance difficulty of the photovoltaic power station is reduced; shielding of the back face of the double-face power generation photovoltaic module is reduced, and power generation loss and hot spot risks are reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic modules, and in particular relates to a photovoltaic module frame, a photovoltaic module and a mounting structure. Background Art

[0002] As a very important new energy source, photovoltaic power generation has seen rapid growth in installed capacity in recent years. Figure 1 The cross-section of the traditional photovoltaic module frame. Currently, there are two main ways to install photovoltaic modules: one is block installation, that is, the metal block and the photovoltaic module frame are fixed to the purlin by screws; the other is screw installation, that is, the photovoltaic module frame is fixed to the purlin directly through the mounting holes set on the photovoltaic module frame. However, there are many problems with these two installation methods.

[0003] The pressing block installation is to install the pressing block on the top of the photovoltaic module and fasten it with screws. As the size of photovoltaic modules increases, it is more and more difficult for operators to operate with their arms across the installation. In addition, the photovoltaic modules are densely arranged, with many fastening points, and the installation and disassembly efficiency is low. The photovoltaic modules located in the middle are difficult to disassemble after installation, which brings inconvenience to the operation and maintenance of the photovoltaic modules.

[0004] Screw installation is to install screws on the inner extension plate of the PV module frame to fasten it. Each PV module needs to be installed through at least four screw holes. There are many fixing points, which is inconvenient to operate and has low efficiency in installation and disassembly. The fixing points are basically point contacts. In bad weather, the capacity may cause problems such as deformation of the frame near the installation holes, which will affect the normal use of the PV module.

[0005] In addition, the current block installation and screw installation methods usually use two longer through-purlins to achieve four-point fixation of photovoltaic modules. The purlins are located in the upper and lower middle positions on the back of the photovoltaic modules. As photovoltaic modules have gradually upgraded to bifacial power generation technology in recent years, the purlins will form a large shadow area on the back of the photovoltaic modules, thereby affecting the bifacial power generation effect and increasing the risk of hot spots. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a photovoltaic module frame, a photovoltaic module and a mounting structure to solve the problems of low installation and disassembly efficiency of photovoltaic modules and insufficient double-sided power generation effect, thereby achieving efficient installation and disassembly of photovoltaic modules.

[0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] In a first aspect, the present invention provides a photovoltaic module frame, comprising a pair of first frames and a pair of second frames arranged opposite to each other, wherein the inner sides of the pair of first frames and the pair of second frames are both formed with cavities and packaging grooves along their own axial directions, wherein the packaging grooves are located above the cavities, and adjacent first frames and second frames are connected by inserting angle keys into the corresponding cavities;

[0009] A pair of mounting slots are formed on the inner sides of the pair of second frames along their own axial direction, and the mounting slots are located below the cavity.

[0010] As a preferred solution of the present invention, the first frame and the second frame both include an outer web, an inner web, a lower support plate, an upper support plate, and a first wing plate; the lower support plate and the upper support plate are spaced apart on the inner side of the outer web, the lower support plate is connected to the upper support plate through the inner web, and the lower support plate, the upper support plate, the inner web, and the outer web form the cavity; a first wing plate is also provided on the inner side above the outer web, and the first wing plate, the upper support plate, and the outer web form the packaging groove.

[0011] As a preferred solution of the present invention, in the second frame, an extension section is further provided below the outer web, a second wing plate is provided inside the extension section, and the second wing plate, the outer web and the lower support plate form the installation slot.

[0012] In a second aspect, the present invention provides a photovoltaic assembly, comprising a photovoltaic assembly frame and a photovoltaic panel encapsulated in the photovoltaic assembly frame.

[0013] In a third aspect, the present invention provides a photovoltaic module installation structure, including a photovoltaic module frame and first and second purlins arranged opposite to each other, wherein a pair of installation slots arranged on the photovoltaic module frame are matched and snap-connected with the first and second purlins arranged opposite to each other.

[0014] As a preferred solution of the present invention, a pair of outward-facing slide rails are relatively arranged on the first purlin and the second purlin, the pair of slide rails are matched and engaged with the pair of mounting slots, and positioning pieces are provided at the ends of the slide rails to prevent the photovoltaic module frame from sliding along the slide rails.

[0015] As a preferred solution of the present invention, a pair of supporting wing plates are relatively arranged on the first purlin and the second purlin, and a pair of upwardly extending stop bars are relatively arranged on the outer sides of the pair of supporting wing plates to limit the frame of the photovoltaic module. The pair of supporting wing plates are also provided with pressure strips, and the pressure strips are clamped in the pair of mounting slots.

[0016] As a preferred solution of the present invention, the first purlin is provided with a slide rail facing outward, and the slide rail is matched and engaged with the mounting slot on one side of the photovoltaic component frame; the second purlin is provided with a supporting wing plate, and the outer side of the supporting wing plate is also provided with a baffle extending upward to limit the photovoltaic component frame, and the supporting wing plate is also provided with a pressure strip, which is clamped in the mounting slot on the other side of the photovoltaic component frame.

[0017] As a preferred solution of the present invention, the installation height of the first purlin is greater than the installation height of the second purlin.

[0018] As a preferred solution of the present invention, the pressure strip is connected to the supporting wing plate through a fastener.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] 1) Sliding installation is possible, which is easy to install and only requires a small number of fasteners to achieve batch installation, with high installation efficiency and reduced installation costs.

[0021] 2) The contact area between the photovoltaic modules and the purlins is increased, making the installation more secure; and the provision of baffles or slide rails on the purlins can effectively avoid the risk of the photovoltaic modules slipping and shifting.

[0022] 3) Due to the simplified installation structure, only a small number of fasteners need to be removed during disassembly, which makes disassembly convenient, especially for batch disassembly of photovoltaic modules, reducing the difficulty of operation and maintenance of photovoltaic power stations and improving operation and maintenance efficiency.

[0023] 4) For bifacial photovoltaic modules, it helps to reduce the additional central shading on the back of the photovoltaic modules, thereby reducing the resulting power generation loss and hot spot risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A cross-sectional view of a traditional photovoltaic module frame.

[0025] Figure 2 This is a cross-sectional view of the first frame.

[0026] Figure 3 This is a cross-sectional view of the second frame.

[0027] Figure 4 This is a schematic diagram of the photovoltaic module frame splicing.

[0028] Figure 5 This is a schematic diagram of the back side of a photovoltaic module.

[0029] Figure 6 A side view of a photovoltaic module.

[0030] Figure 7 This is a side view of the photovoltaic module installation in Example 3.

[0031] Figure 8 This is a schematic diagram of the photovoltaic assembly installation in Example 3.

[0032] Fig. 9 Schematic diagram of the layering strips and purlins of Example 4.

[0033] Fig.10 This is a schematic diagram of the layering structure of Example 4.

[0034] Fig.11 This is a side view of the photovoltaic module frame installation in Example 4.

[0035] Fig.12 This is a schematic diagram of the installation of the layering strip in Example 4.

[0036] Fig.13 This is a top view of the photovoltaic module frame and photovoltaic module installation in Example 4.

[0037] Fig.14 This is a side view of the photovoltaic module frame installation in Example 5.

[0038] In the figure: photovoltaic module frame 100; first frame 110; first packaging groove 111; first cavity 112; second frame 120; second packaging groove 121, second cavity 122; mounting slot 123; second wing plate 124; outer web 131; inner web 132; lower support plate 133; upper support plate 134; first wing plate 135; angle key 140; photovoltaic panel 200; photovoltaic module 300; first purlin 400; first slide rail 401; first supporting wing plate 402; first stop bar 403; first pressure bar 404; second purlin 500; second slide rail 501; second supporting wing plate 502; second stop bar 503; second pressure bar 504; fastener 600. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "above", "below", "inside", "outside", "both ends", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] Embodiment 1;

[0042] See also Figure 2-3 The present embodiment provides a photovoltaic module frame, including a pair of first frames 110 and a pair of second frames 120 arranged opposite to each other, the inner side of the first frame 110 is formed with a first packaging groove 111 and a first cavity 112 along its own axial direction, the first packaging groove 111 is located above the first cavity 112, the inner side of the second frame 120 is formed with a second packaging groove 121, a second cavity 122 and an installation groove 123 along its own axial direction, the second packaging groove 121 is located above the second cavity 122, the installation groove 123 is located below the second cavity 122, and the second packaging groove 121 and the second cavity 122 of the second frame 120 are the same as the first packaging groove 111 and the first cavity 112 except for the installation groove 123.

[0043] That is, the first frame 110 and the second frame 120 both include an outer web 131, an inner web 132, a lower support plate 133, an upper support plate 134, and a first wing plate 135. The lower support plate 133 and the upper support plate 134 are arranged at intervals on the inner side of the outer web 131. The lower support plate 133 is connected to the upper support plate 134 through the inner web 132. The lower support plate 133, the upper support plate 134, the inner web 132, and the outer web 131 enclose a first cavity 112 or a second cavity 113. Two cavities 122, a first wing plate 135 is also provided on the inner side above the outer web 131, the first wing plate 135 and the upper support plate 134 and the outer web 131 form a first packaging groove 111 or a second packaging groove 121; the second frame 120 is different from the first frame 110 in that there is also an extension section under the outer web 131, a second wing plate 124 is provided on the inner side of the extension section, and the second wing plate 124 and the outer web 131 and the lower support plate 133 form an installation slot 123.

[0044] Compared to Figure 1Referring to the frame cross section in the present embodiment, the inner extension section of the lower support plate 133 is cancelled for both the first frame 110 and the second frame 120, and then a second wing plate 124 (below the cavity) is arranged on the inner side of the lower extension section of the second frame 120 to form a mounting slot 123; compared with multi-point block installation or screw installation, the photovoltaic module frame in the present embodiment provides a sliding installation method or a simpler detachable installation method, which breaks the traditional installation method, improves the installation efficiency, and reduces the installation difficulty.

[0045] See also Figure 4-5 A pair of first frames 110 and a pair of second frames 120 are spliced ​​and combined into a rectangular frame, and an angle key 140 is used as a connecting fastener to be inserted into the first cavity 112 of the adjacent first frame 110 and the second cavity 122 of the second frame 120, so that the adjacent frames are effectively connected end to end to form a rectangular photovoltaic component frame 100; the first packaging groove 111 and the second packaging groove 121 above the cavity are also connected end to end to form a packaging groove along the circumferential direction of the photovoltaic component frame 100, which is used to package the photovoltaic panel 200; a pair of installation grooves 123 relatively arranged on the inner side below the pair of second frames 120 constitute the installation grooves 123 of the photovoltaic component frame 100, and the installation grooves 123 face the inner side of the photovoltaic component frame 100 and are located on the back of the photovoltaic panel 200.

[0046] Embodiment 2;

[0047] See also Figure 5-6 This embodiment provides a photovoltaic assembly, including a photovoltaic panel 200 and a photovoltaic assembly frame 100 encapsulated around the photovoltaic panel 200, the photovoltaic assembly frame 100 is the photovoltaic assembly frame 100 in Example 1, assembled into a complete photovoltaic assembly 300.

[0048] The photovoltaic module frame 100 and the photovoltaic panel 200 are installed by gluing, and the specific process includes gluing and framing.

[0049] The gluing includes: using a gluing device to inject silica gel into the first packaging groove 111 of the first frame 110 and the second packaging groove 121 of the second frame 120 in the photovoltaic module frame 100, and ensuring a suitable injection amount and injection width.

[0050] The framing includes: placing a pair of first frames 110 and a pair of second frames 120 according to the size corresponding to the periphery of the photovoltaic panel 200, pre-mortising the ends of one pair of frames with angle keys 140, and connecting with the other pair of frames through silicone and angle keys 140 to complete the installation.

[0051] During the installation process, the photovoltaic assembly frame 100 and the photovoltaic assembly 300 are installed at the same time, and the photovoltaic panel 200 and the photovoltaic assembly frame 100 form a good adhesive bond to obtain the photovoltaic assembly 300.

[0052] Different from the current conventional photovoltaic module 300, the photovoltaic module 300 in this embodiment has mounting slots 123 formed on a set of opposite sides where the second frame 120 is located on the back side, which helps to achieve quick installation.

[0053] In the photovoltaic assembly 300 of the present embodiment, the photovoltaic assembly frame 100 of the above structure is suitable for the installation of various photovoltaic panels 200, including double-glass, single-glass and other new photovoltaic panels.

[0054] Embodiment 3;

[0055] See also Figure 7-8 The present embodiment provides a photovoltaic module installation structure, including a photovoltaic module frame 100 and a first purlin 400 and a second purlin 500 arranged opposite to each other. The first purlin 400 and the second purlin 500 have the same structure and the same size. The first purlin 400 is provided with a first slide rail 401, and the second purlin 500 is provided with a second slide rail 501. The first slide rail 401 and the second slide rail 501 are arranged opposite to each other and both face outward. Since the installation card slot 123 faces the inner side of the photovoltaic module frame 100, the first slide rail 401 and the second slide rail 501 face the outer side of the photovoltaic module frame 100 to match and engage with the installation card slot 123 on the photovoltaic module frame 100, and the photovoltaic module frame 100 can slide along the first slide rail 401 and the second slide rail 501 through the installation card slot 123. The installation card slot 123 and the slide rail are clearance-matched.

[0056] Before installing the photovoltaic module 300, first fix the first purlin 400 and the second purlin 500 on the lower support member. The distance between the two is determined according to the distance of the second frame 120 in the photovoltaic module frame 100. When placing the purlin, the slide rail of the purlin is facing outward to match the installation slot 123 on the photovoltaic module 300.

[0057] When installing the photovoltaic assembly 300, adjust the position of the photovoltaic assembly 300 so that the pair of mounting slots 123 on the photovoltaic assembly 300 are aligned with the first slide rail 401 and the second slide rail 501 respectively. After being inserted, push the photovoltaic assembly 300 along the axis direction of the first purlin 400 and the second purlin 500 to the predetermined position to achieve rapid installation and positioning.

[0058] Furthermore, in order to prevent the photovoltaic assembly 300 from sliding out of the first purlin 400 and the second purlin 500, positioning members may be installed at both ends of the first purlin and the second purlin 500. The positioning members may be bolts, positioning blocks, etc., and the positioning members are fastened to both ends of the first purlin 400 and the second purlin 500 after the photovoltaic assembly 300 is installed. The number of positioning members is greatly reduced compared to the number of traditional pressing blocks or screws.

[0059] Although the sliding fit between the mounting slot 123 and the slide rail is an existing conventional technical means, there is no relevant report in the art, and the present invention does not only utilize the sliding fit between the mounting slot 123 and the slide rail, but more importantly, the contact area between the photovoltaic module and the purlin is increased by the fit between the mounting slot 123 and the slide rail, and the slide rail can also limit the displacement of the photovoltaic module in the direction perpendicular to the purlin; compared with multi-point block installation or screw installation, the photovoltaic module is installed more firmly; the sliding installation has a fast installation speed, which is particularly suitable for batch installation and disassembly of photovoltaic modules. Especially when the photovoltaic module is installed at an angle, due to the different installation heights of each point of the photovoltaic module, if the block installation or screw installation is adopted, the operator needs to constantly adjust the operating position, and the installation and disassembly efficiency is low. The installation structure described in this embodiment can well overcome the above problems.

[0060] Embodiment 4:

[0061] See also Figure 9-13 This embodiment provides a photovoltaic module installation structure different from that of Embodiment 3, including a photovoltaic module frame 100 and a first purlin 400 and a second purlin 500 arranged opposite to each other, wherein the first purlin 400 and the second purlin 500 have the same structure and the same size; a first supporting wing plate 402 is provided on the first purlin 400, and a first stop bar 403 extending upward is provided on the outer side of the first supporting wing plate 402; a second supporting wing plate 502 is provided on the second purlin 500, and a second stop bar 503 extending upward is provided on the outer side of the second supporting wing plate 502; since the second frame 120 also has a lower extension section, and a second wing plate 124 is provided on the inner side of the lower extension section, the stop bar is arranged to be located on the outer side so that the stop bar cooperates with the lower extension section of the second frame 120 to limit the second frame 120; the second wing plate 124 is installed on the supporting wing plate (including the first supporting wing plate 402 and the second supporting wing plate 502), and the second wing plate 124 can also slide on the supporting wing plate.

[0062] In addition, a first pressure strip 404 is provided on the first supporting wing plate 402, and a second pressure strip 504 is provided on the second supporting wing plate 502. The first pressure strip 404 and the second pressure strip 504 can be matched and snapped with the mounting slots 123 on both sides of the plurality of photovoltaic module frames 100, and the pressure strips are fastened to the supporting wing plates by fasteners 600. The fasteners 600 can be one or more of bolts, screws, pressure blocks, and other types of fastening fixtures. Specifically, screw holes are provided on the pressure strips and the supporting wing plates, and the pressure strips and the supporting wing plates can be detachably installed by bolts.

[0063] The pressure strip is in the shape of a flat long strip, with a thickness less than the height of the mounting slot 123 on the photovoltaic module frame 100, and a total length consistent with the length of the corresponding supporting wing plate. The length of a single-section pressure strip needs to be the length of at least two groups of photovoltaic module frames 100. For a shorter pressure strip, screw holes are set at least at its two ends. For a longer pressure strip, in addition to the two ends, screw holes are also required in the middle. The spacing between the screw holes is determined by the length of the photovoltaic module frame 100.

[0064] Usually, the photovoltaic module is installed at an angle, and the fixed position close to the ground is the lower purlin, and the fixed position far from the ground is the upper purlin; since the purlin is provided with a supporting wing plate, and a baffle is provided on the outer side of the supporting wing plate, the supporting wing plate forms a pair, which serves as a slide rail and a support member for installing the card slot 123, and the baffle forms a pair, which serves as a limit bar of the photovoltaic module 300; when installing the photovoltaic module 300, the baffle helps the photovoltaic module 300 to slide and be accurately fixed, and after the photovoltaic module 300 is fastened with the pressure strip, the baffle can effectively prevent the photovoltaic module 300 from shifting during the later operation. Setting the pressure strip can effectively prevent the photovoltaic module 300 from shifting out of the plane and along the axis direction of the purlin.

[0065] Usually, the photovoltaic module is installed at an angle, the lower purlin (second purlin 500) is installed closer to the ground, and the upper purlin (first purlin 400) is installed farther from the ground. The installation height of the first purlin 400 is greater than the installation height of the second purlin 500. The provision of the baffle can well prevent the photovoltaic module 300 from sliding down in the inclined direction. Even if the photovoltaic module 300 is installed horizontally, the baffle can prevent the photovoltaic module 300 from shifting, thereby ensuring the normal use of the photovoltaic module 300.

[0066] This embodiment also provides a method for installing a photovoltaic module, which specifically includes the following steps:

[0067] (1) Install the first purlin 400 and the second purlin 500 on the lower support member, and determine the spacing between the first purlin 400 and the second purlin 500 according to the size of the photovoltaic module 300;

[0068] (2) The pair of second wing plates 124 of the photovoltaic module frame 100 are overlapped and positioned with the supporting wing plates respectively, so that the photovoltaic module frame 100 is installed between the first purlin 400 and the second purlin 500, and one pair of edges of the photovoltaic module frame 100 are in contact with the stop bar for limiting;

[0069] (3) Insert the pressure strip into the installation slots 123 of the pair of second frames 120;

[0070] (4) Use fasteners 600 to fasten the pressure strips to the first purlin 400 and the second purlin 500 .

[0071] The photovoltaic module and the mounting structure provided in this embodiment are installed by using the above-mentioned mounting method. The top view of the photovoltaic module is as shown in FIG. Fig.10 It can be seen that, compared with the traditional pressing block installation and screw installation, the installation method of this embodiment has greatly reduced fixing points, effectively reducing the operation difficulty and improving the installation efficiency.

[0072] This embodiment also provides a method for disassembling a photovoltaic module, comprising the following steps:

[0073] (1) Remove the fasteners that fix the pressure strips and the first purlin 400 and the second purlin 500;

[0074] (2) Remove the pressure strip located in the installation slot 123;

[0075] (3) Push the photovoltaic assembly 300 toward the ends of the first purlin 400 and the second purlin 500 to achieve batch disassembly.

[0076] As a preferred method of this embodiment, the installation slot 123 is arranged on the short side of the rectangular photovoltaic component frame 100, that is, the length of the second frame 120 is smaller than the length of the first frame 110. Then, when the length of the pressure strip is the same, the number of photovoltaic components 300 fastened by it is greater, and it is more suitable for batch installation and disassembly of photovoltaic components 300.

[0077] Embodiment 5:

[0078] See also Fig.14This embodiment is a combination of embodiment 3 and embodiment 4. The first purlin 400 adopts the setting method of embodiment 3, and the second purlin 500 adopts the setting method of embodiment 4. The two adopt different structural forms and sizes. Specifically, the first purlin 400 is provided with a first slide rail 401 facing outward, the second purlin 500 is provided with a second support wing plate 502, and the second support wing plate 502 is provided with a second gear bar 503 extending upward on the outer side; the mounting slot 123 on one side of the photovoltaic module frame 100 is engaged with the first slide rail 401, and the second wing plate 124 corresponding to the mounting slot 123 on the other side is installed on the second support wing plate 502, and the other side of the photovoltaic module frame 100 is also limited by the second gear bar 503, and the second pressure strip 504 is provided on the second support wing plate 502 to fasten the photovoltaic module frame 100. It should be noted that although the first purlin 400 and the second purlin 500 adopt different structures, they can achieve smooth sliding of the photovoltaic module 300.

[0079] During installation, first dock the mounting slot 123 of the photovoltaic module 300 with the first slide rail 401 and the second supporting wing plate 502 respectively, and then move the photovoltaic module 300 to a predetermined position along the purlin axis; insert the second pressure strip 504 into the mounting slot 123, and use the fastener 600 to fasten the second pressure strip 504 to the second supporting wing plate 502.

[0080] This installation structure and installation method have the advantages of both Example 3 and Example 4. When the second purlin 500 is used as the lower purlin, it can play a good fastening role on the photovoltaic component 300. At the same time, the installation and disassembly speed is improved compared with the traditional installation method.

[0081] When the size of the photovoltaic module is large, so that the span of the two purlins is large, a purlin can be added below the middle of the photovoltaic module to play a supporting role and thus meet the load requirements. The addition of the middle purlin has no effect on the installation structure provided by the present invention.

[0082] In the prior art, the two pairs of strip frames that make up the rectangular photovoltaic module frame have basically the same structure, and the back of the rectangular photovoltaic module frame forms a plane with a certain ring width, and the width of the ring is the length of the lower support plate. However, the present invention sets a mounting slot at the bottom of a pair of second frames, so that a pair of first frames and a pair of second frames have structural differences, and a stepped structure is formed on the back of the photovoltaic module frame. The mounting slot protrudes from the bottom of the first frame to match the corresponding purlin, pressure strip, etc., to form a quick installation structure, thereby greatly improving the installation method of the photovoltaic module and completely breaking the traditional installation method.

[0083] The photovoltaic module frame, photovoltaic module, mounting structure and mounting method of the present invention can produce at least the following beneficial effects:

[0084] (1) Simple installation of photovoltaic modules. The photovoltaic module frame itself forms an installation slot, which matches the corresponding pressure strips and purlins. Only a small number of fasteners are needed to achieve batch installation. In traditional installation structures and methods, a module has multiple installation points. Obviously, the installation structure and method provided by the present invention greatly reduces the workload of photovoltaic module installation, significantly improves installation work efficiency, and reduces installation costs.

[0085] (2) Improve the installation reliability of photovoltaic modules. Compared with the traditional four-point installation, the installation effect provided by the present invention is a slot-type connection, and the lower purlin is provided with a stopper bar, which avoids the risk of slipping and shifting of photovoltaic modules caused by long-term operation under harsh outdoor conditions. At the same time, the purlin forms a large area of ​​contact with the frame, and the fixing effect is more reliable.

[0086] (3) Easy disassembly, which facilitates the operation and maintenance of photovoltaic power stations. The installation structure provided by the present invention simplifies installation and makes disassembly simple. The pressure strips can be removed by removing a small number of bolts, thereby realizing the disassembly of batch components, which greatly reduces the difficulty of operation and maintenance of power stations. Photovoltaic power stations operate outdoors and can operate for 25 to 30 years. The status of photovoltaic components directly affects the power generation of the power station, which will save a lot of labor costs and improve operation and maintenance efficiency.

[0087] (4) For bifacial power generation modules, it is helpful to reduce the shadow loss caused by the back mounting structure. Compared with the traditional method of fixing the middle purlin, the mounting structure provided by the present invention makes the purlin parallel to the mounting frame, reducing the additional middle shading on the back of the photovoltaic module, greatly reducing the resulting power generation loss and hot spot risk.

Claims

1. A photovoltaic module frame, comprising a pair of first frames and a pair of second frames arranged opposite to each other, wherein the inner sides of the pair of first frames and the pair of second frames are both formed with cavities and packaging grooves along their own axis directions, wherein the packaging grooves are located above the cavities, and adjacent first frames and second frames are connected by inserting angle keys into the corresponding cavities; Features: A pair of mounting slots are formed on the inner sides of the pair of second frames along their own axial direction, and the mounting slots are located below the cavity.

2. The photovoltaic module frame according to claim 1, characterized in that: The first frame and the second frame both include an outer web, an inner web, a lower support plate, an upper support plate, and a first wing plate; the lower support plate and the upper support plate are spaced apart on the inner side of the outer web, the lower support plate is connected to the upper support plate via the inner web, and the lower support plate, the upper support plate, the inner web, and the outer web form the cavity; a first wing plate is also provided on the inner side above the outer web, and the first wing plate, the upper support plate, and the outer web form the packaging groove.

3. The photovoltaic module frame according to claim 2, characterized in that: In the second frame, an extension section is further provided below the outer web, a second wing plate is provided inside the extension section, and the second wing plate, the outer web and the lower support plate form the installation slot.

4. A photovoltaic module, comprising the photovoltaic module frame according to any one of claims 1 to 3 and a photovoltaic panel encapsulated in the photovoltaic module frame.

5. A photovoltaic module installation structure, comprising a photovoltaic module frame as claimed in any one of claims 1 to 3 and first and second purlins arranged oppositely, wherein a pair of installation slots arranged on the photovoltaic module frame are matched and snap-fitted with the first and second purlins arranged oppositely.

6. The photovoltaic module installation structure according to claim 5, characterized in that: A pair of outwardly facing slide rails are arranged on the first purlin and the second purlin, and the pair of slide rails are matched and engaged with the pair of mounting slots. Positioning pieces are arranged at the ends of the slide rails to prevent the photovoltaic component frame from sliding along the slide rails.

7. The photovoltaic module installation structure according to claim 5, characterized in that: A pair of supporting wing plates are arranged opposite to each other on the first purlin and the second purlin, and a pair of upwardly extending stop bars are arranged opposite to each other on the outer sides of the pair of supporting wing plates to limit the frame of the photovoltaic module. A pressure strip is also arranged on the pair of supporting wing plates, and the pressure strip is clamped in the pair of mounting slots.

8. The photovoltaic module installation structure according to claim 5, characterized in that: The first purlin is provided with a slide rail facing outward, and the slide rail is matched and engaged with the mounting slot on one side of the photovoltaic component frame; the second purlin is provided with a supporting wing plate, and the outer side of the supporting wing plate is also provided with a baffle extending upward to limit the photovoltaic component frame, and the supporting wing plate is also provided with a pressure strip, which is clamped in the mounting slot on the other side of the photovoltaic component frame.

9. The photovoltaic module installation structure according to any one of claims 6 to 8, characterized in that: The installation height of the first purlin is greater than the installation height of the second purlin.

10. The photovoltaic assembly installation structure according to claim 7 or 8, characterized in that: The pressure strip is connected to the supporting wing plate through a fastener.

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