A frame of a photovoltaic module and a photovoltaic module, a photovoltaic module installation system

Abstract

The utility model discloses a kind of frame of photovoltaic module and photovoltaic module, photovoltaic module mounting system, the body of this frame includes connecting cavity, bottom plate, top plate are respectively arranged below and above it, mounting groove between connecting cavity and top plate, third vertical board between second vertical board and bottom plate, its width along first direction X is greater than second vertical board, fixed groove between connecting cavity and top plate.Compared with conventional photovoltaic module frame, the frame of photovoltaic module of the utility model, the position of fixed groove and the thickness of vertical board are optimized, so that the frame has the advantages of not obvious increase metal consumables, load performance meets requirements, can realize hidden installation, installation difficulty is small, installation efficiency is high, cost is low etc., can be widely used in component group frame, while photovoltaic module can be widely used in BIPV or BAPV system, use value is high, and application prospect is good.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module structure technology, and relates to a frame of a photovoltaic module, a photovoltaic module, and a photovoltaic module installation system. Background Technology

[0002] Photovoltaic modules mainly consist of solar cells, laminates, and frames. The solar cells are fixed inside the laminates, while the frames are installed around the laminates to provide sealing, enhance mechanical strength, and provide support. Furthermore, in photovoltaic module applications, the frames are used to mount the modules onto a support structure, creating a building-integrated photovoltaic (BIPV) or building-integrated photovoltaic (BAPV) system.

[0003] Conventional photovoltaic module frames, such as Figure 1 As shown, when using this frame to install photovoltaic modules onto the bracket, a pressure block is mainly set on the bottom side (C) of the frame to fix the bottom plate of the frame to the bracket, or a pressure block is set on the top plate (A) of the frame to fix the frame to the bracket. The former installation method is very difficult to operate due to limited space, which is not conducive to rapid installation; the latter installation method can obstruct the photovoltaic modules due to the obstruction of the pressure block, affecting the service life of the photovoltaic modules, and is not conducive to the installation of waterproof covers. In addition, the excessive height of the connection cavity can easily increase the amount of metal consumables used, resulting in high costs.

[0004] To address the aforementioned issues, researchers improved the structure of the border, for example, as shown in the example. Figure 2 As shown, researchers have proposed a photovoltaic module frame with a horizontal plate extending from the outer B-side or inner D-side of the frame body and bending to form a fixing groove. This fixing groove then engages with a block-shaped structure on a connector, and the photovoltaic module is fixed to the bracket through the fixing action of the connector. While the fixing groove can conceal the connector, it increases the width of the frame, increasing both the weight and volume of the photovoltaic module. This leads to significantly increased installation and transportation difficulties, low installation efficiency, and substantial increases in installation and transportation costs. It also significantly increases the amount of frame material used, resulting in higher material costs. A more prominent problem is the thinness of the base plate, leading to poor mechanical properties and difficulty in achieving stable fixing of the photovoltaic module. To improve load-bearing capacity, the frame increases the volume of the connecting cavity and adds a reinforcing cavity. This further increases the amount of frame material used and requires larger corner brackets for splicing, uniformly increasing material usage and costs.

[0005] In addition, researchers have proposed a photovoltaic module installation system, such as Figure 3As shown, by creating a gap on the outer B-side of the frame, a fixing groove is formed on the outer surface of the frame. The pressure block is then placed in the fixing groove, and the photovoltaic module is fixed to the bracket by the fixing action of the pressure block. Although this method can hide the pressure block, the limited space of the fixing groove leads to high installation difficulty and low installation efficiency. In particular, the pressure block can only be inserted into the fixing groove from the frame cross-section, making the operation difficult. Furthermore, although the frame has good load-bearing capacity, it has multiple horizontal plates, vertical plates, and side plates forming multiple cavities, which makes the frame structure complex, increases manufacturing costs, and significantly increases the frame's weight per unit weight, thus significantly increasing the material cost of the frame.

[0006] Therefore, finding a frame that meets load-bearing requirements, allows for concealed installation, is easy to install, has high installation efficiency, and is low in cost, without significantly increasing metal consumption, is of great significance for promoting the widespread application of photovoltaic modules. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a photovoltaic module frame and photovoltaic module, and photovoltaic module installation system that does not significantly increase metal consumption, meets the load performance requirements, can achieve concealed installation, has low installation difficulty, high installation efficiency, and low cost.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A frame for a photovoltaic module includes a body. The body includes a connecting cavity formed by a pair of horizontal plates and a pair of vertical plates for accommodating connectors. A bottom plate and a top plate are respectively provided below and above the connecting cavity. The pair of horizontal plates includes a first horizontal plate and a second horizontal plate. An mounting groove for accommodating laminates is formed between the first horizontal plate and the top plate. The pair of vertical plates includes a first vertical plate and a second vertical plate. A third vertical plate extends from the second vertical plate along a second direction Y. The width of the third vertical plate along a first direction X is greater than that of the second vertical plate. One end of the third vertical plate away from the second vertical plate is connected to the bottom plate. One end of the bottom plate is bent upward to form an upper folded edge, aligning the upper folded edge with the first vertical plate. A fixing groove for accommodating a pressure block is formed between the second horizontal plate and the upper folded edge.

[0010] As a further improvement to the above technical solution: the distance between the third vertical plate and the upper folded edge on the base plate is the same as the length of the second horizontal plate along the first direction X; the thickness of the base plate along the second direction Y is greater than that of the second horizontal plate.

[0011] As a further improvement to the above technical solution: the width of the third vertical plate along the first direction X is 0.8 mm to 2 mm.

[0012] As a further improvement to the above technical solution: the length of the upper folded edge is 2mm to 8mm.

[0013] As a further improvement to the above technical solution: the thickness of the base plate along the second direction Y is 0.8 mm to 2 mm.

[0014] As a further improvement to the above technical solution: a fourth vertical plate extends from the end of the first vertical plate away from the upper folded edge in a direction opposite to the second direction Y, and the end of the fourth vertical plate away from the first vertical plate is connected to the top plate.

[0015] As a further improvement to the above technical solution: the fourth vertical plate is provided with at least one protrusion on the side away from the mounting groove.

[0016] As a further improvement to the above technical solution: the top plate is provided with a slot on the side near the mounting groove.

[0017] As a general technical concept, this utility model also provides a photovoltaic module, which includes the aforementioned frame.

[0018] As a further improvement to the above technical solution, it also includes a laminate, the edge of which is fixed in the mounting groove of the frame.

[0019] As a general technical concept, this utility model also provides a photovoltaic module installation system, including at least two photovoltaic modules as described above, with the fixing grooves of the corresponding frames of the two photovoltaic modules arranged opposite to each other.

[0020] As a further improvement to the above technical solution, it also includes: a pressure block and a bracket; the pressure block includes a horizontal pressure plate, the two ends of the horizontal pressure plate are bent upward to form a vertical pressure plate, the end of the vertical pressure plate away from the horizontal pressure plate is bent in the same or opposite direction as the first direction X to form a locking plate, the end of the locking plate away from the vertical pressure plate is bent downward to form a lower folded edge, and a fixing cavity that can accommodate the upper folded edge is formed between the vertical pressure plate and the lower folded edge. In use, the fixing cavity is engaged with the upper folded edge.

[0021] As a further improvement to the above technical solution: the horizontal pressure plate is connected to the bracket in a detachable manner, so that the photovoltaic module is fixed on the bracket by the frame and the pressure block.

[0022] As a further improvement to the above technical solution: the detachable connection method includes bolt connection.

[0023] As a further improvement to the above technical solution, it also includes: a waterproof cover plate; the waterproof cover plate has two opposing snap-fit ​​plates at both ends, and the snap-fit ​​plates have several grooves on the side near the end of the waterproof cover plate. In use, the waterproof cover plate covers the top plate of the frame, so that the protrusion on the fourth vertical plate is snapped into the groove.

[0024] Compared with the prior art, the advantages of this utility model are:

[0025] (1) In view of the shortcomings of existing photovoltaic module frames, such as high metal consumption, difficult installation, low installation efficiency, high cost, and difficult transportation, this utility model creatively proposes a photovoltaic module frame with a thickened third vertical plate between the connecting cavity and the base plate. By increasing the thickness of the third vertical plate, the load-bearing capacity of the frame can be strengthened, exhibiting excellent load performance. This allows for effective support of the laminated components while reducing the volume of the connecting cavity. At the same time, it enables the hidden installation of the pressure block while ensuring the load performance of the module. Furthermore, reducing the volume of the connecting cavity also reduces the amount of material used. In addition, by reducing the volume of the connecting cavity, it is easier to stabilize the frame assembly by connecting parts (such as corner brackets) on both the long and short sides, while also reducing the volume of the connecting parts, which is also conducive to reducing the metal consumption. Dosage; Meanwhile, a fixing groove is set between the connecting cavity and the base plate, and the upper folded edge of the fixing groove is aligned with the first vertical plate. On the one hand, setting the fixing groove below the connecting cavity can realize the concealed installation of the pressure block, so that the waterproof cover fits the module frame better, reducing the amount of water leakage from the cover, and will not block the photovoltaic module or hinder the use of the waterproof cover. At the same time, the opening width of the fixing groove is adjustable and is the same width as the connecting cavity, providing a very large range of motion, which can provide sufficient space for the installation of the pressure block, making installation convenient, efficient, and with less installation work. On the other hand, by aligning the upper folded edge of the fixing groove with the first vertical plate, the connecting cavity and the fixing groove are on the outer side B of the frame, thus not increasing the length of the frame, facilitating transportation and installation, and reducing transportation costs and installation difficulty. More importantly, the thickened third vertical plate and the fixing groove of the same width as the connecting cavity not only meet the load performance of the photovoltaic module, but also enable the photovoltaic module to be installed quickly and discreetly. It is also convenient for transportation and quick installation of the waterproof cover. Ultimately, the frame of the photovoltaic module of this utility model has the advantages of not significantly increasing metal consumption, meeting the load performance requirements, enabling discreet installation, easy installation, high installation efficiency, and low cost. It can be widely used in module frames and can also enable the widespread use of photovoltaic modules in BIPV or BAPV systems. It has high use value and good application prospects.

[0026] (2) In the new frame of this embodiment, the distance between the third vertical plate and the upper folded edge on the bottom plate is the same as the length of the second horizontal plate along the first direction X. Without increasing the length of the frame, it can effectively support the laminate and facilitate the stable installation of the components. In addition, the thickness of the bottom plate along the second direction Y is greater than that of the second horizontal plate. By increasing the thickness of the bottom edge, the mechanical performance of the frame can be further improved, which is also conducive to the stable installation of the photovoltaic modules on the bracket.

[0027] (3) In the new frame of this embodiment, a fourth vertical plate extends on the first vertical plate of the frame in the direction opposite to the second direction Y, and at least one protrusion is provided on the side of the fourth vertical plate away from the mounting groove. On the one hand, the protrusion is used as the cover plate clamping point, which can achieve a better clamping effect with the cooperation of the fixing groove and the pressure block. While strengthening the stable installation of the frame, it is also convenient to achieve effective waterproofing of the photovoltaic system. On the other hand, setting the protrusion on the outer side B of the frame can also reduce the metal consumption of the cover plate and lower the cost.

[0028] (4) In the new frame of this embodiment, a slot is provided on the top plate near the mounting groove, which can improve the buffering effect of the photovoltaic module and the bonding effect between the frame and the laminate.

[0029] (5) In the photovoltaic module installation system of this utility model, there are fixed cavities on both sides away from the edge of the pressure block opening that can accommodate the upper folded edge. During the installation process, under the combined action of the fixed cavity and the upper folded edge, not only can the photovoltaic module be accurately positioned, but the photovoltaic module can also be quickly installed. The installation difficulty is small and the installation efficiency is high. Therefore, the photovoltaic module can be accurately, quickly and stably fixed on the bracket. Attached Figure Description

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0031] Figure 1 This is a schematic diagram of the frame structure of a conventional photovoltaic module.

[0032] Figure 2 This is a schematic diagram of the frame structure of an existing improved photovoltaic module.

[0033] Figure 3 A schematic diagram of the structure of an existing conventional photovoltaic module installation system.

[0034] Figure 4 This is a schematic diagram of the structure of the photovoltaic module frame of this utility model.

[0035] Figure 5 This is a schematic diagram of the photovoltaic module installation system of this utility model.

[0036] Legend:

[0037] 1. Frame; 101. Connecting cavity; 102. First horizontal plate; 103. Second horizontal plate; 104. First vertical plate; 105. Second vertical plate; 106. Third vertical plate; 107. Base plate; 108. Upper folded edge; 109. Fixing groove; 110. Top plate; 111. Mounting groove; 112. Fourth vertical plate; 113. Protruding strip; 114. Slot; 115. Horizontal pressure plate; 116. Vertical pressure plate; 117. Clamping plate; 118. Lower folded edge; 119. Waterproof cover plate; 120. Clamping plate; 121. Laminated component; Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0039] Example

[0040] like Figure 1-3 As shown, existing photovoltaic module frames are mainly installed on brackets by pressing them onto the edges A and C with clamps, or by embedding them into a fixing groove on the B side. The first method easily obstructs the photovoltaic module and is not conducive to installing waterproof covers. The second method is difficult to operate and cannot achieve rapid installation. The third method, as an improved method, although having the shortcomings of the first two, still has drawbacks such as high metal consumption, high installation difficulty, low installation efficiency, high cost, and transportation difficulties. To address the technical problems existing in the above-mentioned prior art, this utility model provides a photovoltaic module frame, specifically: as follows: Figure 4 As shown, the frame of the photovoltaic module in this embodiment includes a body. The body includes a connecting cavity 101 formed by a pair of horizontal plates and a pair of vertical plates to accommodate connectors. A bottom plate 107 and a top plate 110 are respectively provided below and above the connecting cavity 101. The pair of horizontal plates includes a first horizontal plate 102 and a second horizontal plate 103. An mounting groove 111 for accommodating laminates is formed between the first horizontal plate 102 and the top plate 110. The pair of vertical plates includes a first vertical plate 104 and a second vertical plate 105. A third vertical plate 106 extends from the second vertical plate 105 along the second direction Y. The width of the third vertical plate 106 along the first direction X is greater than that of the second vertical plate 105. One end of the third vertical plate 106 away from the second vertical plate 105 is connected to the bottom plate 107. One end of the bottom plate 107 is bent upward to form an upper folded edge 108, so that the upper folded edge 108 is aligned with the first vertical plate 104. A fixing groove 109 for accommodating pressure blocks is formed between the second horizontal plate 103 and the upper folded edge 108.

[0041] In this invention, a thickened third vertical plate is provided between the connecting cavity and the base plate. By increasing the thickness of the third vertical plate, the load-bearing capacity of the frame can be strengthened, exhibiting excellent load-bearing performance. This allows for effective support of the laminated components while reducing the volume of the connecting cavity. Simultaneously, it enables concealed installation of the pressure block while ensuring the load-bearing performance of the components. Furthermore, reducing the volume of the connecting cavity also reduces material consumption. Furthermore, by reducing the volume of the connecting cavity, it is easier to stabilize the frame assembly via connectors (such as corner brackets) on both the long and short sides, while also reducing the volume of the connectors, which also helps reduce the amount of metal consumables used. At the same time, a fixing groove is provided between the connecting cavity and the base plate, and the upper folded edge of the fixing groove is aligned with... Aligning the first vertical plate serves two purposes. First, a fixing groove is provided below the connecting cavity, enabling concealed installation of the pressure block. This allows the waterproof cover to fit more closely to the module frame, reducing leakage and preventing obstruction of the photovoltaic module or hindering the use of the waterproof cover. Furthermore, the adjustable opening width of the fixing groove, being the same width as the connecting cavity, provides ample space for the pressure block installation, facilitating efficient and labor-saving installation. Second, aligning the upper folded edge of the fixing groove with the first vertical plate ensures that the connecting cavity and the fixing groove are both on the outer B-side of the frame. This avoids increasing the frame length, facilitating transportation and installation, and reducing transportation costs and installation difficulty. More importantly, the thickened third vertical plate and the fixing groove of the same width as the connecting cavity not only meet the load performance of the photovoltaic module, but also enable the photovoltaic module to be installed in a hidden and fast manner. It is also convenient for transportation and easy to install the waterproof cover plate quickly. In the end, the frame of the photovoltaic module of this utility model has the advantages of not significantly increasing metal consumption, meeting the load performance requirements, enabling hidden installation, easy installation, high installation efficiency, and low cost. It has high use value and good application prospects.

[0042] In this embodiment, the distance between the third vertical plate 106 and the upper folded edge 108 on the base plate 107 is the same as the length of the second horizontal plate 103 along the first direction X. This can effectively support the laminate without increasing the length of the frame, and at the same time facilitate the stable installation of the module. Meanwhile, the thickness of the base plate 107 along the second direction Y is greater than that of the second horizontal plate 103. By increasing the thickness of the bottom edge, the mechanical performance of the frame can be further improved, which is also conducive to the stable installation of the photovoltaic module on the bracket.

[0043] In this embodiment, the width of the third vertical plate 106 along the first direction X is 1mm. In other embodiments, the width of the third vertical plate 106 along the first direction X can also be 0.8mm, 0.9mm, 1.1mm, 1.3mm, 1.5mm, 1.8mm, or 2.0mm.

[0044] In this invention, by optimizing the width of the third vertical plate 106 along the first direction X, the structural load-bearing capacity can be enhanced, thereby enabling concealed installation of the pressure block while ensuring the load-bearing capacity of the component, and reducing the cost of metal consumables. However, when the width of the third vertical plate 106 along the first direction X is too low, it is difficult to improve the structural load-bearing capacity, especially failing to meet the 5600Pa requirement, while when the width of the third vertical plate 106 along the first direction X is too high, it will significantly increase the cost of metal consumables.

[0045] In this embodiment, the length of the upper folded edge 108 is 4mm. In other embodiments, the length of the upper folded edge 108 can also be 2mm, 2.5mm, 3mm, 3.5mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, or 8mm.

[0046] In this invention, by optimizing the length of the upper folded edge 108, the structural load-bearing capacity can be enhanced, thereby enabling rapid installation of the pressure block while ensuring the load-bearing capacity of the component and reducing the cost of metal consumables. However, when the length of the upper folded edge 108 is too short, the installation and fixing effect of the pressure block is poor, while when the length of the upper folded edge 108 is too long, the space for placing the pressure block is too large, which weakens the load-bearing capacity of the component and significantly increases the cost of metal consumables.

[0047] In this embodiment, the thickness of the base plate 107 along the second direction Y is 1 mm. In other embodiments, the thickness of the base plate 107 along the second direction Y can also be 0.8 mm, 0.9 mm, 1.1 mm, 1.3 mm, 1.5 mm, 1.8 mm, or 2.0 mm.

[0048] In this invention, the stability of the frame can be improved by optimizing the thickness of the base plate 107 along the second direction Y.

[0049] In this embodiment, a fourth vertical plate 112 extends from the end of the first vertical plate 104 away from the upper folded edge 108 in a direction opposite to the second direction Y. The end of the fourth vertical plate 112 away from the first vertical plate 104 is connected to the top plate 110. At least one protrusion 113 is provided on the side of the fourth vertical plate 112 away from the mounting groove 111. On the one hand, using the protrusion as a cover plate clamping point can achieve a better clamping effect with the cooperation of the fixing groove and the pressure block, which can not only strengthen the stable installation of the frame, but also facilitate the effective waterproofing of the photovoltaic system. On the other hand, setting the protrusion on the outer side B of the frame can also reduce the metal consumption of the cover plate, resulting in lower costs.

[0050] In this embodiment, the top plate 110 is provided with a slot 114 on the side near the mounting groove 111, which can improve the buffering effect of the photovoltaic module and the bonding effect between the frame and the laminate.

[0051] The photovoltaic module in this embodiment includes an upper frame.

[0052] In this embodiment, a laminate 121 is also included, the edge of which is fixed in the mounting groove 111 of the frame.

[0053] like Figure 5 As shown, the photovoltaic module installation system of this embodiment includes at least two photovoltaic modules (other photovoltaic modules are not shown in the figure), and the fixing grooves 109 of the corresponding frames of the two photovoltaic modules are arranged opposite to each other.

[0054] This embodiment also includes: a pressure block and a support. The support is attached to the top surface of the building and horizontally fixed to the top of the building. Several downward-sloping main water channels (generally M-shaped) are provided above the support. The main water channels are detachably installed on the support. At the same time, crossbeams are detachably fixed on the main water channels. It can be seen that the pressure block can be fixed to the support through the crossbeams on the main water channels.

[0055] like Figure 5 As shown, in this embodiment, the pressure block includes a horizontal pressure plate 115. The two ends of the horizontal pressure plate 115 are bent upward to form a vertical pressure plate 116. The end of the vertical pressure plate 116 away from the horizontal pressure plate 115 is bent in the same or opposite direction as the first direction X to form a locking plate 117. The end of the locking plate 117 away from the vertical pressure plate 116 is bent downward to form a lower folded edge 118. A fixing cavity is formed between the vertical pressure plate 116 and the lower folded edge 118 to accommodate the upper folded edge 108. In use, the fixing cavity is locked onto the upper folded edge 108. The horizontal pressure plate 115 is connected to the bracket in a detachable manner, so that the photovoltaic module is fixed on the bracket by the frame and the pressure block.

[0056] In this embodiment, the detachable connection between the transverse pressure plate 115 and the bracket can be a bolt connection, but is not limited to this.

[0057] like Figure 5 As shown, this embodiment also includes: a waterproof cover plate 119, with two opposing snap-fit ​​plates 120 provided at both ends of the waterproof cover plate 119. The snap-fit ​​plates 120 have several grooves on the side near the end of the waterproof cover plate 119. In use, the waterproof cover plate 119 covers the top plate 110 of the frame, so that the protrusion 113 on the fourth vertical plate is snapped into the groove.

[0058] In this embodiment, the number and shape of the grooves on the snap-fit ​​plate 120 match the protrusions on the fourth vertical plate 112.

[0059] The results above show that, compared with conventional photovoltaic module frames, the frame of this utility model optimizes the position of the fixing groove and the thickness of the vertical plate, making the frame have the advantages of not significantly increasing metal consumption, meeting load performance requirements, enabling concealed installation, easy installation, high installation efficiency, and low cost. It can be widely used in module frames and can also enable the widespread use of photovoltaic modules in BIPV or BAPV systems. It has high use value and good application prospects.

[0060] The above embodiments are merely preferred embodiments of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that improvements and modifications made by those skilled in the art without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A frame for a photovoltaic module, comprising a body, the body including a connecting cavity (101) formed by a pair of horizontal plates and a pair of vertical plates for accommodating connectors, a bottom plate (107) and a top plate (110) respectively provided below and above the connecting cavity (101), the pair of horizontal plates including a first horizontal plate (102) and a second horizontal plate (103), a mounting groove (111) for accommodating laminates being formed between the first horizontal plate (102) and the top plate (110), the pair of vertical plates including a first vertical plate (104) and a second vertical plate (105), characterized in that, The second vertical plate (105) extends a third vertical plate (106) along the second direction Y. The width of the third vertical plate (106) along the first direction X is greater than that of the second vertical plate (105). The end of the third vertical plate (106) away from the second vertical plate (105) is connected to the bottom plate (107). One end of the bottom plate (107) is bent upward to form an upper folded edge (108), so that the upper folded edge (108) is aligned with the first vertical plate (104). A fixing groove (109) for accommodating the pressure block is formed between the second horizontal plate (103) and the upper folded edge (108).

2. The frame according to claim 1, characterized in that, The distance between the third vertical plate (106) and the upper folded edge (108) on the base plate (107) is the same as the length of the second horizontal plate (103) along the first direction X; the thickness of the base plate (107) along the second direction Y is greater than that of the second horizontal plate (103).

3. The frame according to claim 2, characterized in that, The width of the third vertical plate (106) along the first direction X is 0.8 mm to 2 mm; the length of the upper folded edge (108) is 2 mm to 8 mm; and the thickness of the bottom plate (107) along the second direction Y is 0.8 mm to 2 mm.

4. The frame according to any one of claims 1 to 3, characterized in that, The first vertical plate (104) extends a fourth vertical plate (112) in a direction opposite to the second direction Y at one end away from the upper folded edge (108). The fourth vertical plate (112) is connected to the top plate (110) at one end away from the first vertical plate (104). The top plate (110) has a slot (114) on the side near the mounting groove (111).

5. The frame according to claim 4, characterized in that, The fourth vertical plate (112) has at least one protrusion (113) on the side away from the mounting groove (111).

6. A photovoltaic module, characterized in that, The photovoltaic module includes the frame as described in claim 5.

7. The photovoltaic module according to claim 6, characterized in that, It also includes a laminate (121), the edge of which is fixed within the mounting groove (111) of the frame.

8. A photovoltaic module installation system, characterized in that, It includes at least two photovoltaic modules as described in claim 6 or 7; the fixing slots (109) of the corresponding frames of the two photovoltaic modules are arranged opposite to each other.

9. The photovoltaic module installation system according to claim 8, characterized in that, Also includes: The pressure block and the bracket; the pressure block includes a horizontal pressure plate (115), the two ends of the horizontal pressure plate (115) are bent upward to form a vertical pressure plate (116), the end of the vertical pressure plate (116) away from the horizontal pressure plate (115) is bent in the same or opposite direction to the first direction X to form a locking plate (117), the end of the locking plate (117) away from the vertical pressure plate (116) is bent downward to form a lower folded edge (118), a fixing cavity is formed between the vertical pressure plate (116) and the lower folded edge (118) to accommodate the upper folded edge (108), and in use, the fixing cavity is locked onto the upper folded edge (108); the horizontal pressure plate (115) and the bracket are connected by a detachable connection, so that the photovoltaic module is fixed on the bracket by the frame and the pressure block; the detachable connection includes bolt connection.

10. The photovoltaic module installation system according to claim 9, characterized in that, Also includes: Waterproof cover plate (119); The waterproof cover plate (119) has two opposing snap-fit ​​plates (120) at both ends. The snap-fit ​​plates (120) have several grooves on the side near the end of the waterproof cover plate (119). In use, the waterproof cover plate (119) covers the top plate (110) of the frame, so that the protrusion (113) on the fourth vertical plate (112) is snapped into the groove.

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