Photovoltaic module system

Abstract

The present disclosure relates to a photovoltaic module system. The photovoltaic module system includes a photovoltaic module, a fireproof layer and a protective member; the photovoltaic module includes a back panel, a junction box and a frame, the back panel is fixed to the inner side of the frame, and the junction box is connected to the back panel; the fireproof layer is stacked on the surface of the back panel; the protective member and the fireproof layer form a space for accommodating the junction box, and the protective member is installed on the frame. In the photovoltaic module system provided by the embodiment of the present disclosure, the fireproof layer is stacked on the surface of the back panel, which can increase the flame retardancy and make the back panel not easy to burn through or burn; the junction box is located inside the space formed by the protective member and the fireproof layer, and the protective member avoids the fire hazard caused by the heating and burning of the junction box, and the fireproof layer and the protective member improve the fireproof performance and safety performance of the photovoltaic module system. The photovoltaic module system provides sufficient fire protection when a fire occurs, effectively reduces the fire hazard, and enables the photovoltaic module system to pass the UL790 test.

Description

Technical Field

[0001] The present disclosure relates to the field of photovoltaic technology, and in particular to a photovoltaic module system. Background Art

[0002] Solar energy is a green, environmentally friendly, renewable energy source that is increasingly favored by people and plays a wide range of roles in people's lives and work. Solar power generation is the use of solar cell modules to convert solar energy into electrical energy. Its advantage is that it is not restricted by factors such as regions and altitudes, and can convert a large amount of light energy into electrical energy. In recent years, with the rapid growth of the number and scale of solar photovoltaic power stations around the world, various power station fires caused by fires in photovoltaic power station components are common. With the development of photovoltaic applications, the safety of photovoltaic systems is becoming more and more important. In particular, the fire hazards caused by photovoltaic failures or construction problems cannot be ignored. At present, the mainstream photovoltaic modules on the market are mainly composed of glass, upper film, battery, lower film, backboard, junction box and frame, etc. The film, backboard and junction box are all combustibles.

[0003] The UL790 test standard is a test standard used to evaluate fire performance, and the UL790 standard certification is also an internationally recognized safety performance certification. In the event of a serious fire, if no module is ignited or flies off the test substrate, the roof support structure, or part of the roof structure particles fall off and burn, it is considered to have passed the UL790 test.

[0004] Photovoltaic modules need to solve the problem of how to effectively reduce fire hazards and ensure adequate fire protection when a fire occurs, so as to pass the UL790 test standard. Utility Model Content

[0005] Based on this, it is necessary to provide a photovoltaic module system that can effectively reduce fire hazards and ensure adequate fire protection when a fire occurs, so as to pass the UL790 test standard.

[0006] The disclosed embodiment provides a photovoltaic module system. The photovoltaic module system includes a photovoltaic module, a fireproof layer and a protective member; the photovoltaic module includes a back plate, a junction box and a frame, the back plate is fixed to the inner side of the frame, and the junction box is connected to the back plate; the fireproof layer is stacked on the surface of the back plate; the protective member and the fireproof layer form a space for accommodating the junction box, and the protective member is installed on the frame.

[0007] In the photovoltaic module system provided by the embodiment of the present disclosure, the fireproof layer is stacked on the surface of the back plate, which can increase the flame retardancy and make the back plate not easy to burn through or burn; the junction box is located inside the space formed by the protective member and the fireproof layer, and the protective member avoids the fire hazard caused by the heating and burning of the junction box. The fireproof layer and the protective member improve the fireproof performance and safety performance of the photovoltaic module system. The photovoltaic module system provides sufficient fire protection when a fire occurs, effectively reduces the fire hazard, and enables the photovoltaic module system to pass the UL790 test.

[0008] In some embodiments, the protection element is spaced apart from a side of the junction box facing away from the back plate.

[0009] With such arrangement, the gap between the protective member and the junction box prevents the junction box from being squeezed by the protective member when in use. At the same time, the gap increases air fluidity, greatly solving the heat dissipation problem and reducing the fire hazard caused by heat generation of the junction box.

[0010] In some embodiments, the protective member includes a bottom plate and side plates extending in the same direction, the two side plates are respectively connected to two sides of the bottom plate, and there is a gap between the side plates and the back plate.

[0011] With this arrangement, the gap between the side panel and the back panel increases the air flow between the space and the outside world, greatly solving the heat dissipation problem and reducing the fire hazard caused by heat in the junction box.

[0012] In some of the embodiments, the side panels are inclined toward the back panel.

[0013] With this arrangement, the inclined side panels cooperate with the bottom panel to increase the space for accommodating the junction box, ensuring that burning debris from the junction box will not fall off to the outside, effectively reducing fire hazards and improving fire resistance.

[0014] In some embodiments, the protective member further includes a mounting portion, wherein the two mounting portions are respectively connected to the two side panels, the extending direction of the mounting portions is the same as that of the side panels, and the two ends of the mounting portions are detachably connected to the frame.

[0015] With such arrangement, the frame is connected to both ends of the mounting portion, thereby facilitating the detachable connection of the protective element.

[0016] In some of the embodiments, the photovoltaic module system further includes a fixing member, the frame is provided with a mounting hole, the mounting hole is arranged corresponding to the mounting portion, the fixing member is passed through the mounting hole and is detachably connected to the mounting portion.

[0017] With such arrangement, the fixing member is passed through the mounting hole and connected to the mounting portion, thereby increasing the firmness of the connection between the protective member and the frame.

[0018] In some embodiments, the two mounting portions are both arranged toward the junction box; the mounting portion is a ring hole, and the ring hole is provided with an opening.

[0019] The opening design of the ring hole reduces the difficulty of extruding the profile, increases the strength of the ring hole, and is conducive to the fastener being passed through the ring hole for connection and fixation.

[0020] In some embodiments, the cross-sectional area of ​​the mounting hole on the outer side of the frame is larger than the cross-sectional area of ​​the mounting hole on the inner side of the frame; and the surface of the fixing member does not protrude from the surface of the outer side of the frame.

[0021] In this way, the fixing piece is completely embedded in the frame through the mounting hole, which plays the role of hiding the fixing piece. At the same time, the length of the fixing piece can be reduced and the connection strength can be increased.

[0022] In some embodiments, each side plate is provided with communication openings at both ends along the extension direction; the junction box further includes cables extending out of the communication openings.

[0023] With such an arrangement, the side panels can be cut by stamping, which is a simple process and can expose the cables, making cable connection easier.

[0024] In some of these embodiments, the guard is a one-piece structure.

[0025] With such arrangement, the protective part can be formed by integral extrusion, the process flow is simple, the operation is simple and convenient, the product quality is good, and the strength is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of a photovoltaic assembly system in an embodiment of the present disclosure;

[0027] Figure 2 is a partial cross-sectional view of a photovoltaic assembly system in an embodiment of the present disclosure;

[0028] Figure 3 is a side view of a protective member in an embodiment of the present disclosure;

[0029] Figure 4 It is a schematic diagram of a part of the structure outside the frame in the embodiment of the present disclosure.

[0030] Reference numerals:

[0031] 100. Photovoltaic module system; 1. Photovoltaic module; 11. Back panel; 12. Junction box; 121. Cable; 13. Frame; 131. Mounting hole; 2. Protective member; 21. Bottom panel; 22. Side panel; 221. Connecting port; 23. Mounting portion; 231. Ring hole; 232. Opening; 3. Fireproof layer; 4. Fixing member. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present disclosure more obvious and understandable, the specific implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the embodiments of the present disclosure. However, the embodiments of the present disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the embodiments of the present disclosure, so the embodiments of the present disclosure are not limited by the specific embodiments disclosed below.

[0033] In the description of the embodiments of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "perpendicular", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present disclosure.

[0034] In the embodiments of the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the embodiments of the present disclosure, unless otherwise clearly specified and limited, the terms "connected", "connection", and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a flexible connection, or a rigid connection along at least one direction; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or directly connected with the presence of an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited. The terms "installed", "fixed", and the like can be broadly understood as connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0037] Solar energy is a green, environmentally friendly, renewable energy source that is increasingly favored by people and plays a wide range of roles in people's lives and work. Solar power generation is the use of solar cell modules to convert solar energy into electrical energy. Its advantage is that it is not restricted by factors such as regions and altitudes, and can convert a large amount of light energy into electrical energy. In recent years, with the rapid growth of the number and scale of solar photovoltaic power stations around the world, various power station fires caused by fires in photovoltaic power station components are common. With the development of photovoltaic applications, the safety of photovoltaic systems is becoming more and more important. In particular, the fire hazards caused by photovoltaic failures or construction problems cannot be ignored. At present, the mainstream photovoltaic modules on the market are mainly composed of glass, upper film, battery, lower film, backboard, junction box and frame, etc. The film, backboard and junction box are all combustibles.

[0038] The UL790 test standard is a test standard used to evaluate fire performance, and the UL790 standard certification is also an internationally recognized safety performance certification. In the event of a serious fire, if no module is ignited or flies off the test substrate, the roof support structure, or part of the roof structure particles fall off and burn, it is considered to have passed the UL790 test.

[0039] Photovoltaic modules need to solve the problem of how to effectively reduce fire hazards and ensure adequate fire protection when a fire occurs, so as to pass the UL790 test standard.

[0040] refer to Figure 1 , Figure 1 The overall structure of the photovoltaic assembly system 100 in the embodiment of the present disclosure is shown. The present disclosure relates to the field of photovoltaic technology.

[0041] refer to Figure 1 and Figure 2The embodiment of the present disclosure provides a photovoltaic module system 100. The photovoltaic module system 100 includes a photovoltaic module 1, a fireproof layer 3 and a protective member 2; the photovoltaic module 1 includes a back plate 11, a junction box 12 and a frame 13, the back plate 11 is fixed to the inner side of the frame 13, and the junction box 12 is connected to the back plate 11; the fireproof layer 3 is stacked on the surface of the back plate 11; the protective member 2 and the fireproof layer 3 form a space for accommodating the junction box 12, and the protective member 2 is installed on the frame 13.

[0042] In the photovoltaic module system 100 provided in the embodiment of the present disclosure, the fireproof layer 3 is stacked on the surface of the back plate 11, which can increase the flame retardancy and make the back plate 11 not easy to burn through or burn; the junction box 12 is located inside the space formed by the protective member 2 and the fireproof layer 3, and the protective member 2 avoids the fire hazard caused by the heating and burning of the junction box 12. The fireproof layer 3 and the protective member 2 improve the fire resistance and safety performance of the photovoltaic module system 100.

[0043] The photovoltaic module system 100 provided in the embodiment of the present disclosure provides sufficient fire protection when a fire occurs, effectively reducing the potential fire hazard, so that the photovoltaic module system 100 passes the UL790 test.

[0044] refer to Figure 1 and Figure 2 , illustratively, the photovoltaic module system 100 is placed in reverse, the photovoltaic module 1 has four interconnected frames 13, the back plate 11 of the photovoltaic module 1 is located at the bottom layer, the four sides of the back plate 11 are all snapped to the inside of the frame 13, the protective layer is stacked on the surface of the back plate 11, the junction box 12 is located on the protective layer and connected to the back plate 11, the protective member 2 is located on the junction box 12 and half surrounds the junction box 12, and the protective member 2 is installed on the inside of the frame 13. When using the photovoltaic module system 100, the photovoltaic module system 100 in the figure needs to be turned upside down so that the protective member 2 is located at the bottom to surround and support the junction box 12.

[0045] Exemplarily, there may be one or more junction boxes 12 .

[0046] Exemplarily, the photovoltaic module 1 has long sides and short sides that are perpendicular to each other. A plurality of junction boxes 12 are arranged in sequence along the short side direction, and the protective member 2 supports the plurality of junction boxes 12 and is connected to the frame 13 along the short side direction. In other embodiments, a plurality of junction boxes 12 are arranged in sequence along the long side direction, and the protective member 2 supports the plurality of junction boxes 12 and is connected to the frame 13 along the long side direction. It is understood that the extension direction of the protective member 2 is the same as the arrangement direction of the junction boxes 12.

[0047] In other embodiments, each junction box 12 may be provided with a corresponding protective member 2 .

[0048] Exemplarily, the width of the protection member 2 is greater than the width of the junction box 12 .

[0049] Exemplarily, the thickness of the protective member 2 ranges from 1 mm to 1.5 mm, so that the strength of the protective member 2 is higher.

[0050] Exemplarily, the fireproof layer 3 is aluminum foil. Exemplarily, the thickness of the aluminum foil ranges from 10um to 120um. It can increase the flame retardancy under the test condition of the flame temperature of 880°C, and is more resistant to flame burning than the conventional backboard 11, so that the backboard 11 is not easy to burn through.

[0051] In other embodiments, the fireproof layer 3 may be made of other fireproof materials.

[0052] Exemplarily, the protective member 2 may be connected to the frame 13 by snapping, buckling, welding or bolting.

[0053] Exemplarily, the frame 13 is an aluminum profile.

[0054] refer to Figure 2 , there is a gap between the protective member 2 and the side of the junction box 12 facing away from the back plate 11. In this way, the gap between the protective member 2 and the junction box 12 prevents the junction box 12 from being squeezed by the protective member 2 when in use, and the gap increases air flow, greatly solving the heat dissipation problem and reducing the fire hazard caused by the heating of the junction box 12.

[0055] refer to Figure 1 and Figure 2 In some embodiments, the protective member 2 includes a bottom plate 21 and a side plate 22 extending in the same direction, the two side plates 22 are respectively connected to the two sides of the bottom plate 21, and there is a gap between the side plates 22 and the back plate 11. In this way, the gap between the side plates 22 and the back plate 11 increases the air flow between the space and the outside, greatly solves the heat dissipation problem, and reduces the fire hazard caused by the heating of the junction box 12.

[0056] Exemplarily, the extending direction of the protection member 2 is the short side direction.

[0057] Exemplarily, the width of the bottom plate 21 along the long side direction is greater than the dimension of the junction box 12 along the long side direction. Exemplarily, the two side plates 22 are symmetrically distributed on both sides of the bottom plate 21 along the short side direction.

[0058] refer to Figures 1 to 3 , exemplarily, the bottom plate 21 and the side plate 22 are both in the shape of a cuboid. The portion of the side plate 22 close to the back plate 11 is arranged parallel to the back plate 11. exemplarily, the surface of the bottom plate 21 does not protrude from the surface of the frame 13.

[0059] refer to Figures 1 to 3In some embodiments, the side panels 22 are tilted toward the back panel 11. In this way, the side panels 22 are tilted and cooperate with the bottom panel 21 to increase the space for accommodating the junction box 12, ensuring that the burning debris of the junction box 12 will not fall off to the outside, effectively reducing the fire hazard and improving the fire prevention performance.

[0060] Exemplarily, the projection of the protective element 2 along the extension direction is in the shape of an arch bridge.

[0061] Exemplarily, one end of the side plate 22 facing the back plate 11 is a first end, and the two side plates 22 are inclined to both sides respectively, so that the distance between the two first ends is greater than the width of the bottom plate 21 .

[0062] In other embodiments, both side panels 22 are disposed perpendicular to the back panel 11 , or one side panel 22 is disposed perpendicular to the back panel 11 , and the other side panel 22 is disposed obliquely to the back panel 11 .

[0063] It is understandable that the two side panels 22 can be inclined toward the junction box 12 so that the distance between the two first ends is smaller than the width of the bottom panel 21 , and the junction box 12 can be accommodated in the space and supported by the protective member 2 .

[0064] refer to Figure 3 In some embodiments, the protective member 2 further includes a mounting portion 23, two mounting portions 23 are respectively connected to the two side panels 22, the extending direction of the mounting portion 23 is the same as the side panels 22, and both ends of the mounting portion 23 are detachably connected to the frame 13. In this way, the detachable connection of the protective member 2 is facilitated by connecting the frame 13 at both ends of the mounting portion 23.

[0065] Exemplarily, the two mounting portions 23 are symmetrically disposed on the two side plates 22 along the short side direction. In other embodiments, the mounting portions 23 may be connected to the bottom plate 21 .

[0066] In other embodiments, there is only one mounting portion 23 , which can be connected to the side plate 22 or the bottom plate 21 .

[0067] Exemplarily, the mounting portion 23 is located at a portion of the side plate 22 close to the bottom plate 21. In other embodiments, the mounting portion 23 may be located at a portion of the side plate 22 close to the back plate 11, or at a middle portion of the side plate 22.

[0068] Exemplarily, the mounting portion 23 is connected to a side of the side plate 22 facing the junction box 12. In other embodiments, the mounting portion 23 may be connected to a side of the side plate 22 facing away from the junction box 12.

[0069] Exemplarily, the extension length of the mounting portion 23 is the same as the extension length of the side plate 22 .

[0070] In other embodiments, there are multiple mounting portions 23 , and the mounting portions 23 have a shorter extension length and are only located at two ends of the side plate 22 .

[0071] refer to Figure 1 and Figure 4 In some embodiments, the photovoltaic module system 100 further includes a fixing member 4, the frame 13 is provided with a mounting hole 131, the mounting hole 131 is arranged corresponding to the mounting portion 23, and the fixing member 4 is passed through the mounting hole 131 and is detachably connected to the mounting portion 23. In this way, the fixing member 4 is passed through the mounting hole 131 and is connected to the mounting portion 23, which increases the firmness of the connection between the protective member 2 and the frame 13.

[0072] Exemplarily, the fixing member 4 is a bolt or a screw, which passes through the mounting hole 131 and fixes the protective member 2 through the mounting portion 23 .

[0073] refer to Figure 3 In some embodiments, both mounting portions 23 are disposed toward the junction box 12; the mounting portion 23 is a ring hole 231, and the ring hole 231 is provided with an opening 232. The opening 232 design of the ring hole 231 reduces the difficulty of extruding the profile, increases the strength of the ring hole 231, and facilitates the fixing member 4 to be inserted into the ring hole 231 for connection and fixing.

[0074] It is understandable that the opening 232 is relatively small to prevent the fixing member 4 entering the ring hole 231 from escaping from the opening 232 .

[0075] Exemplarily, the opening 232 of the ring hole 231 is close to the back plate 11 , or the opening 232 of the ring hole 231 is close to the junction box 12 , or the opening 232 of the ring hole 231 is close to the bottom plate 21 .

[0076] refer to Figure 4 In some embodiments, the cross-sectional area of ​​the mounting hole 131 on the outside of the frame 13 is larger than the cross-sectional area of ​​the mounting hole 131 on the inside of the frame 13 ; the surface of the fixing member 4 does not protrude from the surface of the outside of the frame 13 .

[0077] In this way, the fixing member 4 is completely embedded in the frame 13 through the mounting hole 131, which plays the role of hiding the fixing member 4. At the same time, the length of the fixing member 4 can be reduced and the connection strength can be increased.

[0078] Exemplarily, the cross-sectional aperture of the mounting hole 131 on the outside of the frame 13 is larger than the diameter of the screw head, and the aperture of the mounting hole 131 on the inside of the frame 13 is the same as the screw diameter, so that the screw head can be embedded in the frame 13 and the screw will not be exposed on the surface of the frame 13.

[0079] Exemplarily, the surface of the screw head may be flush with the surface of the frame 13 or the surface of the screw head may be lower than the surface of the frame 13 .

[0080] refer to Figure 1 In some embodiments, each side plate 22 is provided with a communication port 221 at both ends along the extension direction; the junction box 12 further includes a cable 121, and the cable 121 extends out of the communication port 221. With such a configuration, the side plate 22 can be cut by stamping, which is simple in process and can expose the cable 121, facilitating the connection of the cable 121.

[0081] Exemplarily, the communication port 221 is located at a corner portion of an edge of the side plate 22 .

[0082] Exemplarily, the communication openings 221 at both ends of each side plate 22 are formed by cutting by punching.

[0083] Exemplarily, the communication opening 221 is square. In other embodiments, the communication opening 221 may also be circular, polygonal, etc.

[0084] Exemplarily, there are three junction boxes 12 , and the junction boxes 12 at both ends respectively include a cable 121 , and the two cables 121 extend from two ends of the same side plate 22 ; or the two cables 121 extend from different ends of different side plates 22 .

[0085] In other embodiments, the number of the communication port 221 may be one.

[0086] In other embodiments, the communication port 221 may be located in the middle of the edge portion of the side plate 22 .

[0087] In some embodiments, the protective member 2 is an integrated structure. In this way, the protective member 2 can be formed by integral extrusion, with a simple process flow, simple and convenient operation, good product quality and high strength.

[0088] Exemplarily, the material of the protective member 2 is aluminum alloy. The protective member 2 is formed by integral extrusion of the aluminum alloy.

[0089] Exemplarily, the protective member 2 may be made of other fireproof and high temperature resistant materials and have a certain strength to support the junction box 12 .

[0090] In other embodiments, the protective member 2 may be a split structure.

[0091] The technical features of the embodiments disclosed above can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the embodiments described above are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The above disclosed embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A photovoltaic module system, characterized in that: include: A photovoltaic module, comprising a back plate, a junction box and a frame, wherein the back plate is fixed to the inner side of the frame, and the junction box is connected to the back plate; A fireproof layer, the fireproof layer being stacked on the surface of the back plate; and A protective member, wherein the protective member and the fireproof layer form a space for accommodating the junction box, and the protective member is installed on the frame.

2. The photovoltaic module system according to claim 1, characterized in that: The protective member is spaced apart from a side of the junction box facing away from the back plate.

3. The photovoltaic module system according to claim 2, characterized in that: The protective member includes a bottom plate and side plates extending in the same direction, the two side plates are respectively connected to two sides of the bottom plate, and there is a gap between the side plates and the back plate.

4. The photovoltaic module system according to claim 3, characterized in that: The side plate is inclined toward the back plate.

5. The photovoltaic module system according to claim 4, characterized in that: The protective member further comprises a mounting portion, wherein two mounting portions are respectively connected to the two side panels, the extending direction of the mounting portion is the same as that of the side panels, and two ends of the mounting portion are detachably connected to the frame.

6. The photovoltaic module system according to claim 5, characterized in that: The photovoltaic component system also includes a fixing member. The frame is provided with a mounting hole, the mounting hole is arranged corresponding to the mounting portion, and the fixing member is passed through the mounting hole and is detachably connected to the mounting portion.

7. The photovoltaic module system according to claim 6, characterized in that: The two mounting parts are both arranged toward the junction box; the mounting part is a ring hole, and the ring hole is provided with an opening.

8. The photovoltaic module system according to claim 7, characterized in that: The cross-sectional area of ​​the mounting hole on the outer side of the frame is larger than the cross-sectional area of ​​the mounting hole on the inner side of the frame; and the surface of the fixing member does not protrude from the surface of the outer side of the frame.

9. The photovoltaic module system according to claim 8, characterized in that: Each of the side plates is provided with communication openings at both ends along the extending direction; the junction box further comprises a cable, and the cable extends out of the communication openings.

10. The photovoltaic module system according to any one of claims 1 to 9, characterized in that: The protective element is an integrated structure.

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