Photovoltaic sun-shading device and sun-shading building

Abstract

The utility model discloses a photovoltaic sun-shading device and a sun-shading building, relates to the field of photovoltaic sun-shading, and aims to solve the problems of complex mounting structure and tedious mounting process. The device comprises a photovoltaic module which comprises a first side back frame and a second side back frame which are arranged at an interval along a first direction, and the first side back frame comprises a first insertion part; the first supporting beam is provided with a first end and a second end which are opposite in the first direction, the first end is used for being connected with a building vertical face, and the second end is suspended; the first fixing piece and the second fixing piece are arranged on the first supporting beam in a spaced mode in the first direction, the first fixing piece is arranged close to the first end, the second fixing piece is arranged close to the second end, the first fixing piece comprises a second inserting part, and the first edge back frame and the first fixing piece are matched in an inserted mode through the first inserting part and the second inserting part; and the second edge back frame is fixedly connected with the second fixing piece.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic sunshade systems, in particular to a photovoltaic sunshade device and a sunshade building. Background Art

[0002] Building shading is an important part of the building envelope. Its purpose is to prevent the sunlight from overheating the envelope and the indoor environment. It can adjust the indoor thermal environment and light environment, and affect the building shape. On the basis of traditional shading buildings, photovoltaic shading systems are now being used, that is, photovoltaic modules are used as sunshades, which can not only shade the interior of the building but also generate electricity. Compared with many other technically complex passive energy-saving measures, it requires less investment, has more obvious energy-saving effects, and can also generate green electricity. The existing photovoltaic shading devices have a complex installation structure on the building and a cumbersome installation process. Utility Model Content

[0003] The utility model aims to provide a photovoltaic sunshade device and a sunshade building to simplify the installation of the photovoltaic sunshade device.

[0004] In a first aspect, the utility model provides a photovoltaic sunshade device, comprising:

[0005] The photovoltaic assembly comprises a first side back frame and a second side back frame spaced apart along a first direction, wherein the first side back frame comprises a first plug-in portion;

[0006] A first support beam, the first support beam having a first end and a second end opposite to each other along a first direction, the first end being used to be connected to the building facade, and the second end being suspended;

[0007] The first fixing member and the second fixing member are arranged on the first support beam and are spaced apart from each other along the first direction. The first fixing member is arranged close to the first end, and the second fixing member is arranged close to the second end. The first fixing member includes a second plug-in portion. The first side back frame and the first fixing member are plug-fitted together through the first plug-in portion and the second plug-in portion; the second side back frame and the second fixing member are fixedly connected.

[0008] When the above technical solution is adopted, during the installation of the photovoltaic sunshade device, the photovoltaic assembly and the first side back frame and the second side back frame can be pre-installed as an integrated part, and the first end of the first support beam can be installed on the building facade on site. The first fixing part can be pre-installed at a position close to the first end of the first support beam, and then the integrated part composed of the photovoltaic assembly, the first side back frame and the second side back frame is moved away from or close to the building facade along the first direction. During the movement, the first plug-in part on the first side back frame is plugged into the second plug-in part of the first fixing part, so that the side of the integrated part close to the building facade is first hung on the first support beam, and then the second side back frame of the integrated part is fixed to the first support beam by the second fixing part to complete the installation. The photovoltaic sunshade device ensures that it only needs to be installed outside the building during high-altitude installation, which reduces the difficulty of high-altitude installation operations. Compared with the existing cumbersome installation process, the present application can first plug and fix one side of the photovoltaic assembly close to the building facade, and then fix the other side, so as to achieve quick installation and simplify the installation process.

[0009] In some possible implementations, the first plug-in portion includes a first assembly groove, the second plug-in portion includes a first plug-in protrusion, and the first plug-in protrusion is plugged into the first assembly groove; wherein, the protruding end of the first plug-in protrusion faces toward the building facade, and the opening of the first assembly groove faces away from the building facade; or, the protruding end of the first plug-in protrusion faces away from the building facade, and the opening direction of the first assembly groove faces toward the building facade.

[0010] When the above technical solution is adopted, the first side back frame and the first fixing member are fixed by plugging through the first assembly groove and the first plugging protrusion. According to the orientation of the first assembly groove and the first plugging protrusion, the integrated member is selected to move away from or close to the building facade to achieve plugging.

[0011] In some possible implementations, the second side back frame includes a second assembly groove, the second fixing member includes a second plug-in protrusion, the second plug-in protrusion is plugged into the second assembly groove, or the second plug-in protrusion is crimped on the second assembly groove; wherein, the protruding end of the second plug-in protrusion faces away from the building facade, and the opening of the second assembly groove faces toward the building facade; or, the protruding end of the second plug-in protrusion faces toward the building facade, and the opening of the second assembly groove faces away from the building facade.

[0012] When the above technical solution is adopted, the second side back frame and the second fixing member are plugged and fixed through the second assembly groove and the second plug-in protrusion, or the second assembly groove is crimped and fixed through the second plug-in protrusion, so as to fix the second side back frame on the first support beam. The opening direction of the second assembly groove can be opposite to or the same as the opening direction of the first assembly groove.

[0013] In some possible implementations, the photovoltaic shading device also includes one or more middle back frames, and the multiple middle back frames are arranged at intervals along the first direction. The middle back frame is fixed to the lower surface of the photovoltaic component and is located between the first side back frame and the second side back frame. The middle back frame includes a third assembly groove, and a third fixing member is embedded and assembled in the third assembly groove. The third fixing member is fixed to the first support beam, and the third fixing member includes a third plug-in protrusion; wherein, the opening direction of the third assembly groove is the same as the opening direction of the first assembly groove, and the direction of the third plug-in protrusion is the same as the direction of the first plug-in protrusion; or, the opening direction of the third assembly groove is opposite to the opening direction of the first assembly groove, and the direction of the third plug-in protrusion is opposite to the direction of the first plug-in protrusion.

[0014] When the above technical solution is adopted, according to the length of the photovoltaic module in the first direction, in order to improve the supporting strength and stability of the photovoltaic module, one or more middle back frames are arranged on the lower surface of the photovoltaic module, between the first side back frame and the second side back frame, and the third fixing member is embedded in the third assembly groove of the middle back frame, and the third fixing member is also fixed on the first support beam.

[0015] In some possible implementations, the first assembly groove extends along the length direction of the first side back frame, and both ends of the first assembly groove are through or closed, and / or the second assembly groove extends along the length direction of the second side back frame, and both ends of the second assembly groove are through or closed.

[0016] When the above technical solution is adopted, when the two ends of the first assembly groove and the second assembly groove are connected, the first fixing member can also slide in and out from the end of the first assembly groove, and the second fixing member can also slide in and out from the end of the second assembly groove, thereby increasing the installation flexibility of the first fixing member and the second fixing member.

[0017] In some possible implementations, the first fixing member is a first pressure block, one end of which is detachably connected to the first support beam via a threaded connection, and the other end of the first pressure block is a first plug-in protrusion, which is plugged into the first assembly groove; or, the second fixing member is a second pressure block, one end of which is detachably connected to the first support beam via a threaded connection, and the other end of the second pressure block is a second plug-in protrusion, which is plugged into the second assembly groove, or the second plug-in protrusion is crimped onto the second assembly groove.

[0018] When the above technical solution is adopted, when the first fixing member is a first pressure block, or the second fixing member is a second pressure block, it is convenient to detachably fix the first pressure block and the second pressure block on the first support beam, and it is convenient to realize the plug-in fixation of the first pressure block and the first assembly groove, and the plug-in fixation or crimping fixation of the second pressure block and the second assembly groove.

[0019] In some possible implementations, the upper surface of the first support beam has a receiving groove extending along the first direction for receiving cables. In this way, the cables connected to the photovoltaic assembly can be hidden in the receiving groove of the first support beam, which reduces the exposure of the cables to the outside, reduces the damage of the cables to the cables by wind and rain, increases the service life of the cables, and makes the overall structure neat and tidy.

[0020] In some possible implementations, at least one first connection hole is provided at the first end of the first support beam, and the axis of the first connection hole is parallel to the length direction of the first side back frame; the photovoltaic shading device also includes an adapter, which is used to be fixed to the building facade, and the adapter is provided with a plurality of second connection holes for cooperating with the first connection holes, and the plurality of second connection holes are arranged at intervals along the arc direction, and are fixedly connected with different second connection holes in the arc direction through the first connection hole to adjust the angle of the first support beam relative to the building facade.

[0021] When adopting the above technical solution, by selecting the second connecting holes at different positions on the adapter to cooperate with the first connecting holes on the first support beam, the angle of the first support beam relative to the building facade and the horizontal plane can be flexibly adjusted, thereby adjusting the inclination angle of the photovoltaic module relative to the horizontal plane, thereby improving the shading effect and power generation effect of the photovoltaic shading device.

[0022] In some possible implementations, the photovoltaic shading device further includes a second support beam, which is used to be fixed on the building facade, and the adapter is fixed on the second support beam.

[0023] When adopting the above technical solution, the photovoltaic shading device is fixed to the building facade through the second support beam. Since the second support beam is a full-length structure, multiple first support beams can be installed at any position on the second support beam without being affected by the installation structure of the specific spacing on the building facade, making the installation of the photovoltaic shading device more convenient.

[0024] In some possible implementations, the photovoltaic shading device further includes a rotating mechanism, and the rotating mechanism includes:

[0025] A rotation driving component is used to be fixed to the building facade, the rotation end of the rotation driving component is connected to the first end, the rotation axis of the rotation end is parallel to the length direction of the first side back frame, and the rotation driving component is used to drive the first support beam to rotate around the rotation axis to adjust the angle of the first support beam relative to the building facade;

[0026] Tracking system, used to monitor the position of the sun relative to the photovoltaic panels;

[0027] The controller is connected to both the tracking system and the rotating driving component, and is used to control the movement of the rotating driving component according to the monitored position information.

[0028] When the above technical solution is adopted, the rotating mechanism monitors the movement of the sun through a tracking system. The controller controls the rotating drive component to drive the first support beam to rotate according to the monitored position information of the sun relative to the photovoltaic module, so as to adjust the angle of the first support beam relative to the building facade, so that the photovoltaic module can receive more sunlight and increase power generation.

[0029] In some possible implementations, the rotation drive component is connected to the photovoltaic assembly for power supply;

[0030] And / or, the rotating mechanism further comprises a battery, and the battery is connected to the rotating driving component for power supply.

[0031] When the above technical solution is adopted, the rotating driving component is powered by the photovoltaic component itself and / or by a battery.

[0032] In some possible implementations, the photovoltaic shading device also includes a bridge frame, which is fixed to a position of the first support beam close to the second side back frame. The second side back frame is provided with a through hole, and the cables of the photovoltaic components pass through the through hole and are accommodated in the bridge frame.

[0033] When the above technical solution is adopted, the bridge is used to store the cables of the photovoltaic module. The cables of the photovoltaic module first pass through the perforations of the second side back frame and then enter the bridge. The cables are connected and stored inside the bridge. After that, the cables can pass through the bridge and enter the receiving groove of the first support beam to enter the room. In this way, the cables can be further hidden, the exposure of the cables can be reduced, and the service life of the cables can be increased. In addition, the bridge is set at a position close to the second side back frame, that is, located on the outside, which is convenient for using the hanging basket to be installed only on the outside. There is no need to move the hanging basket to the side close to the building facade, which reduces the difficulty of moving the hanging basket and is simple and fast to operate.

[0034] In some possible implementations, the photovoltaic assembly includes a first side and a second side that are opposite to each other, the first side is close to the building facade, and the second side is away from the building facade, and the photovoltaic assembly also includes a third side and a fourth side that are opposite to each other;

[0035] The first side back frame is connected to the first side, or the first side back frame is connected to the lower surface of the photovoltaic component close to the first side; the second side back frame is connected to the second side, or the second side back frame is connected to the lower surface of the photovoltaic component close to the second side;

[0036] A plurality of cells of the photovoltaic module are connected in series along the length direction of the first side, and a plurality of cell strings arranged along the length direction of the third side are connected in parallel.

[0037] When the above technical solution is adopted, considering the impact of sunlight shadows on photovoltaic modules, the trend of shadow shading is to extend outward from the building facade. Therefore, the mode of connecting the battery cells in series in a direction parallel to the building facade and then in parallel in a direction perpendicular to the building facade is selected. In this way, a small number of battery strings can be blocked by shadows, and multiple complete battery strings are not blocked by shadows, which can generate electricity normally, reduce hot spot effects, and ensure that photovoltaic modules achieve optimal power generation under shadow conditions.

[0038] In some possible implementations, the number of first support beams is at least two, the number of photovoltaic components is at least one, a single photovoltaic component is supported by two first support beams, and at least one photovoltaic component is supported on at least two first support beams.

[0039] When the above technical solution is adopted, at least one photovoltaic component is supported by a plurality of first support beams, thereby improving the support stability of the photovoltaic component.

[0040] In some possible implementations, the photovoltaic shading device also includes a leveling rod, which extends along the length direction of the first side edge and is connected to the multiple first support beams. The leveling rod is used to make the top surfaces of the multiple first support beams located in the same plane.

[0041] When adopting the above technical solution, the free ends of multiple first support beams arranged in sequence along the length direction of the first side are leveled by a leveling rod to reduce the assembly height error, so that the top surfaces of these first support beams are located in the same plane, which facilitates the smooth installation of the photovoltaic components and the first support beams.

[0042] In a second aspect, the utility model further provides a sunshade building, comprising:

[0043] Building body; a photovoltaic shading device as described in any of the above items, the photovoltaic shading device is arranged on the building facade of the building body; the angle between the photovoltaic shading device and the building facade is greater than or equal to 60 degrees and less than or equal to 5 degrees.

[0044] Since the sun-shading building adopts the photovoltaic sun-shading device in the present application, it has the same beneficial effects as the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0046] Figure 1 A schematic structural diagram of a photovoltaic sunshade device provided in an embodiment of the utility model;

[0047] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure in;

[0048] Figure 3 A schematic structural diagram of a photovoltaic module and a back frame combination provided by an embodiment of the utility model;

[0049] Figure 4 A schematic structural diagram of another photovoltaic sunshade device provided by an embodiment of the utility model;

[0050] Figure 5 for Figure 4 A schematic structural diagram of the first support beam in FIG.

[0051] Figure 6 for Figure 5 A side view schematic diagram of

[0052] Figure 7 for Figure 4 A schematic diagram of the structure of the adapter in FIG.

[0053] Figure 8 A schematic structural diagram of another photovoltaic sunshade device provided in an embodiment of the utility model;

[0054] Fig. 9 for Figure 8 A schematic structural diagram of the first support beam in FIG.

[0055] Fig.10 for Figure 8 A schematic diagram of the structure of the adapter in FIG.

[0056] Fig.11 A schematic diagram of the working of adjusting the angle between the first support beam and the adapter provided by an embodiment of the utility model;

[0057] Fig.12 A schematic structural diagram of another adapter provided in an embodiment of the utility model;

[0058] Fig.13 A schematic structural diagram of a bridge frame provided for an embodiment of the utility model.

[0059] Figure numerals: 1 is the first side back frame, 2 is the first fixing part, 3 is the middle back frame, 4 is the photovoltaic component, 41 is the first side, 42 is the second side, 43 is the third side, 44 is the fourth side, 5 is the junction box, 6 is the second side back frame, 61 is the through hole, 7 is the bridge, 71 is the cable through hole, 8 is the cable, 9 is the first supporting beam, 91 is the top plate, 92 is the load-bearing plate, 921 is the first connecting hole, 10 is the building facade, 11 is the adapter, 111 is the second connecting hole, 12 is the second supporting beam, 13 is the sleeve, 14 is the optimizer, 15 is the threaded connector, 16 is the second fixing part, and 17 is the third fixing part. DETAILED DESCRIPTION

[0060] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0061] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0062] In addition, the terms "first" and "second" 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" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0063] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying 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 should not be understood as a limitation on the present invention.

[0064] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0065] See also Figure 1-Figure 4 and Figure 8The embodiment of the utility model provides a photovoltaic sunshade device, including a photovoltaic module 4, a first side back frame 1, a second side back frame 6, a first fixing member 2, a second fixing member 16 and a first support beam 9. The photovoltaic module 4 has a first side 41 and a second side 42 that are opposite and parallel, and also has a third side 43 and a fourth side 44 that are opposite and parallel. The first side 41 is perpendicular to the third side 43. When installed, the first side 41 is used to be parallel and close to the building facade 10, the second side 42 is far away from the building facade 10, the third side 43 and the fourth side 44 are perpendicular to the building facade 10, and the length of the first side 41 is greater than, less than or equal to the length of the third side 43, which is not limited here; the photovoltaic module 4 includes a first side back frame 1 and a second side back frame 6 that are spaced apart along a first direction, the first direction is the length direction of the first support beam 9, the first side back frame 1 is close to the building facade, the second side back frame 6 is far away from the building facade 10, and the extension direction of the first side back frame 1 and the second side back frame 6 is parallel to the length direction of the first side 41. The extension direction of the first support beam 9 intersects with the length direction of the first side 41, and can be vertical or have an angle, that is, the first direction intersects with the length direction of the first side 41. The first support beam 9 has a first end and a second end opposite to each other along the first direction, the first end is used to be fixed to the building facade 10, and the second end is suspended. At the same time, the first support beam 9 is supported on the lower surface of the first side back frame 1 and the second side back frame 6. The photovoltaic component 4, the first side back frame 1 and the second side back frame 6 are supported and installed on the building facade 10 by the first support beam 9 to form a sunshade structure. The first fixing member 2 and the second fixing member 16 are arranged on the first support beam 9 and spaced apart from each other along the first direction. The first fixing member 2 is arranged close to the first end, and the second fixing member 16 is arranged close to the second end. The first fixing member 2 includes a second plug-in portion. The first side back frame 1 and the first fixing member 2 are plugged and matched through the first plug-in portion and the second plug-in portion; the second side back frame 6 and the second fixing member 16 are fixedly connected. The junction box 5 of the photovoltaic module 4 is located on the lower surface of the photovoltaic module 4 and close to the second side back frame 6 . The junction box 5 is hidden inside by utilizing the height of the second side back frame 6 .

[0066] For example, the first side back frame 1 is connected to the first side edge 41, or the first side back frame 1 is connected to the lower surface of the photovoltaic component 4 adjacent to the first side edge 41; the second side back frame 6 is connected to the second side edge 42, or the second side back frame 6 is connected to the lower surface of the photovoltaic component 4 adjacent to the second side edge 42; the first side back frame 1 and the second side back frame 6 can be a frame structure having an A surface (the A surface is pressed against the upper surface of the first side edge 41) and a rectangular cavity (located on the lower surface of the first side edge), or can be a frame structure without an A surface and having a glue groove on the top surface (the lower surface of the first side edge 41 is bonded and fixed to the glue in the glue groove). Specifically, when there are no other frames on the first side 41 and the second side 42 of the photovoltaic module 4, the first side back frame 1 can be set on the first side 41 or on the lower surface of the photovoltaic module 4 adjacent to the first side 41, and the second side back frame 6 can be set on the second side 42 or on the lower surface of the photovoltaic module 4 adjacent to the second side 42; when other frames are set on the first side 41 and the second side 42, in order to avoid the frames, the first side back frame 1 is set on the lower surface of the photovoltaic module 4 adjacent to the first side 41, and the second side back frame 6 is set on the lower surface of the photovoltaic module 4 adjacent to the second side 42. When the first side back frame 1 is set on the first side 41 and the second side back frame 6 is set on the second side 42, the first side back frame 1 and the second side back frame 6 can adopt a frame structure with an A surface and a rectangular cavity. When the first side back frame 1 is arranged on the lower surface of the photovoltaic component 4 adjacent to the first side edge 41, and the second side back frame 6 is arranged on the lower surface of the photovoltaic component 4 adjacent to the second side edge 42, the first side back frame 1 and the second side back frame 6 can adopt a frame structure without an A surface and with a glue groove on the top surface.

[0067] During the installation of the photovoltaic shading device, the photovoltaic component 4, the first side back frame 1 and the second side back frame 6 can be pre-installed as an integrated part, and the first end of the first support beam 9 is installed on the building facade 10 on site. After that, the first fixing member 2 can be pre-installed on the first support beam 9 near the first end, and then the integrated part consisting of the photovoltaic component 4, the first side back frame 1 and the second side back frame 6 is moved away from or close to the building facade 10 along the first direction. During the movement, the first plug-in portion on the first side back frame 1 is plugged into the second plug-in portion of the first fixing member 2, so that the side of the integrated part close to the building facade 10 is first hung on the first support beam 9, and then the second side back frame 6 of the integrated part is fixed to the first support beam 9 by the second fixing member 16 to complete the installation. The photovoltaic shading device ensures that it only needs to be installed outside the building during high-altitude installation, reducing the difficulty of high-altitude installation operations. Compared with the existing cumbersome installation process, the present application can first plug and fix one side of the photovoltaic component 4 close to the building facade 10 to the first support beam 9, and then fix the other side, thereby achieving quick installation and simplifying the installation process.

[0068] like Figure 1 and Figure 2As shown, exemplarily, the first plug-in portion on the first side back frame 1 includes a first assembly groove, and the second plug-in portion of the first fixing member 2 includes a first plug-in protrusion, and the first plug-in protrusion is plugged into the first assembly groove; wherein, the protruding end of the first plug-in protrusion faces the building facade 10, and the opening of the first assembly groove faces away from the building facade 10, that is, the first assembly groove is provided on a side of the first side back frame 1 parallel to its length direction and facing away from the building facade 10, and the first assembly groove is located below the photovoltaic module 4; or, the protruding end of the first plug-in protrusion faces away from the building facade 10, and the opening direction of the first assembly groove faces the building facade 10, that is, the first assembly groove is provided on a side of the first side back frame 1 parallel to its length direction and facing the building facade 10.

[0069] Of course, the first plug-in portion on the first side back frame 1 can also use an insertion protrusion, and the second plug-in portion of the first fixing member 2 can use an assembly groove, as long as the plug-in fixation of the first plug-in portion of the first side back frame 1 and the second plug-in portion of the first fixing member 2 can be achieved.

[0070] Specifically, if the protruding end of the first plugging protrusion faces the building facade 10 and the opening of the first assembly groove faces away from the building facade 10, during installation, the integrated component consisting of the photovoltaic module 4, the first side back plate 1 and the second side back plate frame 6 is moved in a direction away from the building facade 10. If the protruding end of the first plugging protrusion faces away from the building facade 10 and the opening direction of the first assembly groove faces the building facade 10, during installation, the integrated component is moved in a direction close to the building facade 10. The first assembly groove of the first side back frame 1 is plugged with the first plugging protrusion of the first fixing member 2, and the integrated component is hung on the first fixing member 2 fixed on the first support beam 9 through the first side back frame 1.

[0071] like Figure 1 and Figure 2 As shown, the second side back frame 6 includes a second assembly groove, and the second fixing member 16 includes a second plug-in protrusion, the second plug-in protrusion is plugged into the second assembly groove, or the second plug-in protrusion is crimped on the second assembly groove; wherein, the protruding end of the second plug-in protrusion faces away from the building facade 10, and the opening of the second assembly groove faces the building facade 10, that is, the second side back frame 6 is parallel to its length direction and faces the building facade 10. A side surface is provided with a second assembly groove, and the second assembly groove is located below the photovoltaic component 4; or, the protruding end of the second plug-in protrusion faces the building facade 10, and the opening of the second assembly groove faces away from the building facade 10, that is, the second side back frame 6 is parallel to its length direction and faces away from the building facade 10. A side surface is provided with a second assembly groove.

[0072] In this way, the second side back frame 6 and the second fixing member 16 are plugged and fixed through the second assembly groove and the second plug-in protrusion, or the second assembly groove is crimped and fixed through the second plug-in protrusion, so that the second side back frame 6 is fixed to the first support beam 9. The opening direction of the second assembly groove can be opposite to or the same as the opening direction of the first assembly groove.

[0073] If the openings of the first assembly groove and the second assembly groove face the same direction, the first fixing member 2 corresponding to the first side back frame 1 and the second fixing member 16 corresponding to the second side back frame 6 are first fixed to the first support beam 9, and then the integrated member consisting of the photovoltaic module 4, the first side back frame 1 and the second side back frame 6 is moved away from or close to the building facade 10 in the first direction. Specifically, if the openings of the first assembly groove and the second assembly groove face the building facade 10, the integrated member moves in a direction close to the building facade 10, and if the openings of the first assembly groove and the second assembly groove face away from the building facade 10, the integrated member moves in a direction away from the building facade 10. During the movement, the first assembly groove of the first side back frame 1 and the second assembly groove of the second side back frame 6 are hung on the corresponding first fixing member 2 and the second fixing member 16 to complete the installation, and the installation operation is faster and simpler.

[0074] If the openings of the first assembly groove and the second assembly groove face opposite directions, for example, the opening of the first assembly groove faces away from the building facade 10, and the opening of the second assembly groove faces the building facade 10, or the opening of the first assembly groove faces the building facade 10, and the opening of the second assembly groove faces away from the building facade 10, then the first fixing member 2 corresponding to the first side back frame 1 is first fixed to the first support beam 9, and then the integrated member is moved away from or close to the building facade 10 along the first direction, so that the first assembly groove of the first side back frame 1 is hung on the first fixing member 2, and then the second fixing member 16 is placed in the second assembly groove of the second side back frame 6, and finally the second fixing member 16 is fixed to the first support beam 9 to complete the installation.

[0075] Furthermore, in some embodiments, Figure 1 and Figure 2 As shown, the first assembly groove is formed on the side of the first side back frame 1 facing away from the building facade 10 ; the second assembly groove is formed on the side of the second side back frame 6 facing the building facade 10 .

[0076] When installing the photovoltaic sunshade device, the first fixing member 2 corresponding to the first side back frame 1 can be first fixed to the position near the first end of the first support beam 9, and then the integrated member can be moved away from the building facade 10 in the first direction, so that the first assembly groove of the first side back frame 1 is hung on the first fixing member 2. After that, the second fixing member 16 corresponding to the second assembly groove of the second side back frame 6 is placed in the second assembly groove, and finally the second fixing member 16 in the second assembly groove is fixed to the position near the second end of the first support beam 9 to complete the installation. When the photovoltaic module 4 has an inclined angle downward in the direction away from the building facade 10 compared to the horizontal plane, the first assembly groove of the first side back frame 1 is first hung on the corresponding first fixing member 2, so that the integrated member is pre-installed and positioned, and the integrated member will not slide down along the first support beam 9 under its own gravity, which is convenient for the subsequent installation of the second fixing member 16 in the second assembly groove. The notches of the first assembly groove and the second assembly groove are arranged in opposite directions, which can limit the photovoltaic module 4 in two relative directions of the first direction. In addition, the first fixing member 2 and the second fixing member 16 are both hidden inside the integrated member, making the appearance neater.

[0077] like Figure 1-Figure 4 and Figure 8 As shown, in some possible implementations, the photovoltaic sunshade device further includes one or more middle back frames 3, and the plurality of middle back frames 3 are arranged at intervals along the first direction, and the length direction of the middle back frame 3 intersects with the length direction of the first side 41, and may be parallel or have an angle, and the middle back frame 3 is fixed to the lower surface of the photovoltaic module 4 and is located between the first side back frame 1 and the second side back frame 6, and the middle back frame 3 includes a third assembly groove, specifically, a third assembly groove is provided on one side of the middle back frame 3, and a third fixing member 17 is fitted and assembled in the third assembly groove, and the third fixing member 17 is fixed to the first support beam 9, and the third fixing member 17 includes a third plug-in protrusion, and the third assembly groove is plugged with the third plug-in protrusion. Among them, the middle back frame 3 can be a frame structure without an A surface and having a glue groove on the top surface, and the middle back frame 3 is adhesively fixed to the lower surface of the photovoltaic module 4. According to the length of the third side 43 of the photovoltaic module 4, the number of the middle back frames 3 is determined, and it can be one, two, three, or more.

[0078] When the above technical solution is adopted, according to the length of the third side 43 of the photovoltaic component 4, in order to improve the supporting strength and stability of the photovoltaic component 4, one or more middle back frames 3 are arranged on the lower surface of the photovoltaic component 4, between the first side back frame 1 and the second side back frame 6, and the third fixing member 17 is assembled in the third assembly groove of the middle back frame 3, and the third fixing member 17 is also fixed on the first support beam 9.

[0079] During installation, the photovoltaic module 4, the first side back frame 1, the second side back frame 6 and the middle back frame 3 are pre-installed as an integrated part. According to the orientation of the notch of the third assembly groove on the middle back frame 3, the third fixing member 17 corresponding to the third assembly groove is pre-fixed on the first support beam 9, or the third fixing member 17 corresponding to the third assembly groove is installed separately later. The installation method is the same as the case with only the first side back frame 1 and the second side frame 6, and will not be repeated here.

[0080] Furthermore, if Figure 2 As shown, in some embodiments, the opening direction of the third assembly groove is the same as the opening direction of the first assembly groove, and the direction of the third plugging protrusion is the same as the direction of the first plugging protrusion. Alternatively, the opening direction of the third assembly groove is opposite to the opening direction of the first assembly groove, and the direction of the third plugging protrusion is opposite to the direction of the first plugging protrusion.

[0081] When the first assembly groove is opened on the side of the first side back frame 1 facing away from the building facade 10; the second assembly groove is opened on the side of the second side back frame 6 facing the building facade 10; and the third assembly groove is opened on the side of the middle back frame 3 facing away from the first side back frame 1, when the photovoltaic shading device is installed, the first fixing member 2 corresponding to the first side back frame 1 and the third fixing member 17 corresponding to the middle back frame 3 can be first fixed on the first support beam 9, and then the integrated part is moved away from the building facade 10 along the first direction, so that the first assembly groove of the first side back frame 1 and the third assembly groove of the middle back frame 3 are respectively correspondingly hung on the first fixing member 2 and the third fixing member 17, and then the second fixing member 16 corresponding to the second side back frame 6 is placed in the corresponding second assembly groove, and finally the second fixing member 16 in the second assembly groove is fixed to the first support beam 9 to complete the installation. The photovoltaic sunshade device ensures that it can be installed only outside the building during high-altitude installation, which reduces the difficulty of high-altitude installation and simplifies the installation process. When the photovoltaic module 4 has an inclination angle downward in the direction away from the building facade 10 compared to the horizontal plane, the first assembly groove of the first side back frame 1 and the third assembly groove of the middle back frame 3 are first hung on the corresponding first fixing member 2 and the third fixing member 17, so that the integrated part is pre-installed and positioned, and the integrated part is prevented from sliding down along the first support beam 9 by its own gravity, which facilitates the subsequent installation of the third fixing member 17 in the second assembly groove. The notches of the first assembly groove and the second assembly groove are arranged in opposite directions, which can limit the photovoltaic module 4 in two opposite directions of the first direction, and the first fixing member 2, the second fixing member 16 and the third fixing member 17 are all hidden inside the integrated part, and the appearance is neater.

[0082] If the first assembly groove is opened on the side of the first side back frame 1 facing away from the building facade 10; the second assembly groove is opened on the side of the second side back frame 6 facing the building facade 10; and the third assembly groove is opened on the side of the middle back frame 3 facing the first side back frame 1, then during installation, the first fixing member 2 corresponding to the first side back frame 1 can be first fixed to the first support beam 9, and then the integrated member is moved away from the building facade 10 along the first direction, so that the first assembly groove of the first side back frame 1 is hung on the first fixing member 2, and then the second fixing member 16 is placed in the second assembly groove, and the third fixing member 17 is placed in the third assembly groove, and finally the second fixing member 16 in the second assembly groove and the third fixing member 17 in the third assembly groove are fixed to the first support beam 9 to complete the installation.

[0083] In this embodiment, the first assembly groove extends along the length direction of the first side back frame 1, and the two ends of the first assembly groove are connected or closed; and / or, the second assembly groove extends along the length direction of the second side back frame 6, and the two ends of the second assembly groove are connected or closed; and / or, the third assembly groove extends along the length direction of the middle back frame 3, and the two ends of the third assembly groove are connected or closed. When the two ends of the first assembly groove, the second assembly groove and the third assembly groove are connected, the first fixing member 2, the second fixing member 16 and the third fixing member 17 can also slide in and out from the ends of the first assembly groove, the second assembly groove and the third assembly groove, or directly embed from the notches of the first assembly groove, the second assembly groove and the third assembly groove, which increases the installation flexibility.

[0084] like Figure 2 As shown, in this embodiment, the first fixing member 2, the second fixing member 16 and the third fixing member 17 are pressing blocks, the first assembly groove, the second assembly groove and the third assembly groove have the same shape, and the corresponding first fixing member 2, the second fixing member 16 and the third fixing member 17 have the same shape, which can be universal. The pressing block is a block or plate structure.

[0085] Exemplarily, the first fixing member 2 is a first pressure block, one end of which is detachably connected to the first support beam 9 via a threaded connector 15, the threaded connector 15 may be a bolt assembly or a screw, and the other end of the first pressure block is a first plug-in protrusion, which is plugged into the first assembly groove.

[0086] The second fixing member 16 is a second pressure block, one end of which is detachably connected to the first support beam 9 via a threaded connector 15, and the other end of the second pressure block is a second plug-in protrusion, which is plugged into the second assembly groove, or crimped onto the second assembly groove.

[0087] Furthermore, in this embodiment, the plug-in protrusion of the protrusion is consistent with the cross-sectional shape of the first assembly groove, the second assembly groove and the third assembly groove, and the protrusion can slide and cooperate along the extension direction of the first assembly groove, the second assembly groove or the third assembly groove; the assembly pressure block is embedded in the position of the first support beam 9 corresponding to the first assembly groove, the second assembly groove and the third assembly groove, that is, the first side back frame 1, the second side back frame 6 and the middle back frame 3 all require multiple pressure blocks for limiting and fixing.

[0088] When the first fixing member 2, the second fixing member 16 and the third fixing member 17 are pressing blocks, one end of the pressing block can be directly embedded in the first assembly groove, the second assembly groove or the third assembly groove, and moved in the assembly groove to the installation position corresponding to the first support beam 9. The installation position of the pressing block in the assembly groove can be conveniently adjusted according to the position of the different first support beams 9.

[0089] In another embodiment, the first fixing member 2, the second fixing member 16 and the third fixing member 17 are pressure strips, which are strip-shaped structures. The length direction of the pressure strips is consistent with the length direction of the assembly groove. One side of the pressure strips can slide with the first assembly groove, the second assembly groove or the third assembly groove along the extension direction of the first assembly groove, the second assembly groove or the third assembly groove. The cross-section of one side of the pressure strip is consistent with the cross-sectional shape of the three assembly grooves; the other side of the pressure strip is detachably connected to the first support beam 9 through a threaded connector 15; a pressure strip is correspondingly fitted in the first assembly groove, the second assembly groove and the third assembly groove.

[0090] When the first fixing member 2, the second fixing member 16 and the third fixing member 17 are pressure strips, the pressure strips can slide in from the through first assembly groove, the third assembly groove or the end of the third assembly groove or be embedded from the groove position. Since the length of the pressure strip is basically the same as that of the assembly groove, there is no need to adjust the position of the pressure strip in the assembly groove. Any position of the pressure strip can be fixed on the first support beam 9, and is not limited to the arrangement spacing of the first support beam 9.

[0091] In some possible implementations, a frame is provided on the lower surface of the photovoltaic assembly 4 on or near the third side 43, and a frame is provided on the lower surface of the photovoltaic assembly 4 on or near the fourth side 44, and the extension direction of the frame is parallel to the length direction of the third side 43. For example, the structure of the frame may be the same as or different from the structure of the first side back frame 1, the second side back frame 6, or the middle back frame 3. By providing a frame to support the photovoltaic assembly 4 in the length direction of the third side 43, the structural strength of the photovoltaic assembly 4 is improved.

[0092] like Figure 4-Figure 12As shown, in some possible implementations, at least one first connection hole 921 is provided at the first end of the first support beam 9, and the axis of the first connection hole 921 is parallel to the length direction of the first side back frame 1; the photovoltaic shading device also includes an adapter 11, the adapter 11 is used to be fixed to the building facade 10, the adapter 11 is provided with a plurality of second connection holes 111 for cooperating with the first connection hole 921, the plurality of second connection holes 111 are arranged at intervals along the arc direction, and the first connection hole 921 is fixedly connected with the second connection holes 111 different in the arc direction to adjust the angle of the first support beam 9 relative to the building facade 10.

[0093] For example, Figure 4 , Figure 5 and Figure 7 As shown, the first end of the first support beam 9 has a plurality of first connection holes 921, and the plurality of first connection holes 921 may be a double-row hole structure, and each row of holes is arranged along a circular arc. Similarly, the plurality of second connection holes 111 on the adapter 11 also have a double-row hole structure, and each row of holes is arranged along a circular arc. The spacing between the first connection holes 921 is equal to the spacing between the second connection holes 111, and the number of the second connection holes 111 is greater than the number of the first connection holes 921, so that the first connection holes 921 can be selected to correspond to the second connection holes 111 at different angles. The first connection holes 921 and the second connection holes 111 are connected by fasteners, such as bolt assemblies or screws, to achieve the connection and fixation of the first support beam 9 and the adapter 11.

[0094] For example, Figure 8-Figure 10 As shown, the plurality of first connection holes 921 on the first support beam 9 can be a single-row hole structure, and the plurality of first connection holes 921 form a circle along the arc. Similarly, the plurality of second connection holes 111 on the adapter 11 can also be a single-row hole structure, and the plurality of second connection holes 111 form a circle along the arc. The spacing between the first connection holes 921 is equal to the spacing between the second connection holes 111, and the number of the second connection holes 111 is equal to the number of the first connection holes 921. After adjusting the coaxial rotation angle between the arc formed by the first connection holes 921 and the arc formed by the second connection holes 111, the positions of the first connection holes 921 and the second connection holes 111 correspond to each other one by one, and the corresponding first connection holes 921 and the second connection holes 111 are connected by fasteners to achieve the connection and fixation of the first support beam 9 and the adapter 11. It is preferred that there are at least two first connection holes 921 to improve the stability of the connection.

[0095] For example, Fig.12As shown, the multiple second connection holes 111 on the adapter 11 can also be a single-row hole structure, and the multiple second connection holes 111 are arranged at intervals along the arc line. On the same arc line, the second connection holes 111 can be arranged in arc segments, and are not continuously arranged at equal intervals. At this time, the multiple first connection holes 921 on the first support beam 9 are also a single-row hole structure, which can be surrounded by a complete circle or arranged in arc segments. As long as the positions of the first connection holes 921 and the second connection holes 111 can correspond to each other and the angle of the first support beam 9 can be adjusted, it is not limited to the layout forms listed in the above embodiments.

[0096] When adopting the above technical solution, by selecting the second connection holes 111 at different positions on the adapter 11 and the first connection holes 921 on the first support beam 9 for matching connection, the angle of the first support beam 9 relative to the building facade 10 and the horizontal plane can be flexibly adjusted, thereby adjusting the inclination angle of the photovoltaic module 4 relative to the horizontal plane, thereby improving the shading effect and power generation effect of the photovoltaic shading device.

[0097] Of course, the angle adjustment of the first support beam 9 can also be achieved without the cooperation between the first connection hole 921 and the second connection hole 111 on the adapter 11, such as Figure 1 As shown, the inclination angle of the first support beam 9 is determined in advance, and the first end surface of the first support beam 9 is beveled to achieve the desired inclination angle.

[0098] In other embodiments, the photovoltaic shading device also includes a rotating mechanism (not shown in the figure), and the rotating mechanism includes a rotating drive component, a tracking system and a controller; wherein the rotating drive component can be a motor for being fixed to the building facade 10, and the rotating end of the rotating drive component is connected to the first end of the first support beam 9, and the rotating axis of the rotating end is parallel to the length direction of the first side back frame 1, and the rotating drive component is used to drive the first support beam 9 to rotate around the rotating axis to adjust the angle of the first support beam 9 relative to the building facade 10; the tracking system is used to monitor the position information of the sun relative to the photovoltaic assembly 4. For example, the tracking system can be a light sensor for detecting the light intensity of sunlight and judging the position of the sun, or other sensors that can detect the movement of the sun; the controller is connected to both the tracking system and the rotating drive component, and the controller is used to control the action of the rotating drive component according to the monitored position information.

[0099] When the above technical solution is adopted, the rotating mechanism monitors the movement of the sun through the tracking system. The controller controls the rotating drive component to drive the first support beam 9 to rotate according to the monitored position information of the sun relative to the photovoltaic module 4, so as to adjust the angle of the first support beam 9 relative to the building facade 10, and then adjust the angle of the photovoltaic module 4 relative to the sun, so that the photovoltaic module 4 can receive more sunlight and increase the power generation.

[0100] Furthermore, in this embodiment, the rotating drive component is connected to the photovoltaic assembly 4 for power supply; and / or the rotating mechanism further includes a battery, and the battery is connected to the rotating drive component for power supply, and the battery can be a storage battery such as a lithium battery. In this way, the photovoltaic assembly 4 itself is used to power the rotating drive component, and / or the battery is used to power the rotating drive component. Of course, it can also be connected to an indoor power supply system.

[0101] like Figure 1 and 6 As shown, in this embodiment, the upper surface of the first support beam 9 has a receiving groove 911 extending along the first direction for receiving the cable 8 , and the receiving groove 911 can also receive the sleeve 13 for placing the cable 8 .

[0102] For example, the first support beam 9 may include a top plate 91 and a load-bearing plate 92. The top surface of the top plate 91 has a receiving groove 911, which may be a V-shaped groove or a U-shaped groove. The plate surface of the load-bearing plate 92 is placed vertically, and the top edge of the load-bearing plate 92 is fixed to the bottom of the receiving groove 911 of the top plate 91, forming a support beam with a Y-shaped cross section. The load-bearing plate 92 can safely withstand loads of 10,000 Pa and above. The lower edge of the load-bearing plate 92 is streamlined, and the streamline shape is designed according to the force curve to ensure the utilization of the cross section. A plurality of first connection holes 921 are provided at one end of the load-bearing plate 92 close to the building facade 10. The shape of the end is designed according to the arrangement of the first connection holes 921, for example, Fig. 9 As shown, it can be circular. The design rules of the first connection hole 921 are in accordance with the "Steel Structure Design Code". The aperture of the first connection hole 921 is d0, the minimum allowable distance that the center spacing of the first connection hole 921 should meet is 3d0, and the minimum allowable distance from the center to the edge of the force-bearing plate 92 is 1.5d0. Combined with the angle α that the first support beam 9 needs to rotate each time it is adjusted, it is determined that the radius r of the circular area of ​​the force-bearing plate 92 satisfies r=540d0 / απ, and finally the arrangement of the first connection hole 921 is obtained. The number of first connection holes 921 to be arranged is determined according to the force requirements to achieve the above effect. In order to facilitate later maintenance, a steel wire rope or a tubular structure is installed in the end area of ​​the first support beam 9 close to the building facade, and the maintenance personnel hang the safety rope at this position to ensure maintenance safety.

[0103] The first support beam 9 in the above embodiment can hide the cable 8 connected to the photovoltaic component 4 in the accommodating groove 911 of the first support beam 9, reducing the exposure of the cable 8 to the outside, reducing the invasion of wind and rain on the cable 8, and improving the service life of the cable 8. The overall appearance is relatively neat and tidy.

[0104] In some embodiments, the number of first support beams 9 is at least two, which are arranged at intervals along the length direction of the first side 41, the number of photovoltaic modules 4 is at least one, a single photovoltaic module 4 is supported by two corresponding first support beams 9, and at least one photovoltaic module 4 is supported on at least two first support beams 9. In this way, at least one photovoltaic module 4 is supported by multiple first support beams 9, thereby improving the support stability of the photovoltaic module 4.

[0105] In some embodiments, the photovoltaic sunshade device further includes a leveling rod, which extends along the length direction of the first side edge 41, and is connected to the plurality of first support beams 9, and is used to make the top surfaces of the plurality of first support beams 9 be located in the same plane. For example, a mounting hole is provided at the same position of the second end of each first support beam 9, and the leveling rod sequentially passes through the mounting holes on the plurality of first support beams 9 to achieve leveling of the second ends of the plurality of first support beams 9, or the leveling rods are all fixedly connected to the same position of the top surfaces of the plurality of first support beams 9, and the leveling effect is also achieved.

[0106] The free ends of multiple first support beams 9 arranged in sequence along the length direction of the first side 41 are leveled by a leveling rod to reduce the assembly height error, so that the top surfaces of these first support beams 9 are located in the same plane, which facilitates the flat installation of the photovoltaic components 4 on the first support beams 9.

[0107] like Figure 1 , Figure 4 and Figure 8 As shown, in some possible implementations, the photovoltaic shading device also includes a second support beam 12 , the length direction of the second support beam 12 is parallel to the first side edge 41 , the second support beam 12 is used to be fixed on the building facade 10 , and the adapter 11 is fixed to the second support beam 12 .

[0108] For example, the cross section of the second support beam 12 can be H-shaped, C-shaped, rectangular, etc. The second support beam 12 and the first support beam 9 can be an integral structure or a separate split installation structure, and the first support beam 9 and the second support beam 12 can be welded or connected by fasteners.

[0109] When the above technical solution is adopted, the photovoltaic shading device is fixed to the building facade 10 through the second support beam 12. Since the second support beam 12 is a full-length structure, multiple first support beams 9 can be arranged at any position on the second support beam 12 without being affected by the installation structure (such as columns) with specific spacing on the building facade 10, making the installation of the photovoltaic shading device more convenient.

[0110] like Figure 1 , Figure 4 , Figure 8 and Fig.13As shown, in some possible implementations, the photovoltaic sunshade device further includes a bridge frame 7, which is fixed to a position of the first support beam 9 close to the second side back frame 6, and the second side back frame 6 is provided with a through hole 61, and the cable 8 of the photovoltaic assembly 4 passes through the through hole 61 and is accommodated in the bridge frame 7. The bridge frame 7 may include a trough frame and a top cover, and the top cover may be openably buckled on the top of the trough frame, and after the top cover is opened, it is convenient for installation and maintenance.

[0111] For example, the bridge 7 is a modular structure, with a rectangular cross-section, a width of 100-200 mm, a height of 30-100 mm, and a length consistent with the arrangement spacing of the first support beam 9. The bottom surfaces of the two ends of the bridge 7 are connected to the upper surface of the first support beam 9 by bolts. Electronic devices connected to the photovoltaic module 4, such as the optimizer 14, are placed in the bridge 7 to reduce the impact of the shadow of the building on the power generation of the photovoltaic module 4. The wiring head of the photovoltaic module 4 passes through the perforation 61 of the second side back frame 6 and is connected to the internal wiring in the bridge 7. The cable 8 coming out of the optimizer 14 is connected to the left and right optimizers 14 through the external wiring to form a photovoltaic array. Finally, the photovoltaic main cable enters the receiving groove 911 of the first support beam 9 through the cable through hole 71 and is finally led indoors.

[0112] When the above technical solution is adopted, the bridge frame 7 is used to store the cables 8 and electronic devices of the photovoltaic module 4, which can further hide the cables 8, reduce the exposure of the cables 8, and increase the service life of the cables 8. In addition, the bridge frame 7 is arranged at a position close to the second side back frame 6, that is, located on the outside, which is convenient for using the hanging basket to be installed only on the outside, and there is no need to move the hanging basket to the side close to the building facade 10, thereby reducing the difficulty of moving the hanging basket and making the operation simple and fast.

[0113] Furthermore, in this embodiment, a plurality of cells of the photovoltaic assembly 4 are connected in series along the length direction of the first side 41 , and a plurality of cell strings arranged along the length direction of the third side 43 are connected in parallel.

[0114] Considering the impact of sunlight shadows on photovoltaic modules, the trend of shadow shading is to extend outward from the building facade 10. Therefore, a mode in which the battery cells are connected in series in a direction parallel to the building facade 10 and then in parallel in a direction perpendicular to the building facade 10 is selected. This can make a small number of battery strings be blocked by shadows, leaving multiple complete battery strings unblocked by shadows, enabling normal power generation, reducing hot spot effects, and ensuring that the photovoltaic module 4 achieves optimal power generation under shadow conditions.

[0115] Based on the photovoltaic shading device described in any of the above embodiments, an embodiment of the utility model also provides a shading building, including a building body and a photovoltaic shading device, wherein the photovoltaic shading device is the photovoltaic shading device described in any of the above embodiments, and the photovoltaic shading device is installed on the building facade 10 of the building body. The angle between the photovoltaic shading device and the building facade 10 is greater than or equal to 60 degrees and less than or equal to 5 degrees, so as to facilitate the diversion of rainwater to the side away from the building facade 10.

[0116] Since the sun-shading building adopts the photovoltaic sun-shading device in the present application, it has the same beneficial effects as any of the above embodiments, which will not be repeated here.

[0117] The side of the photovoltaic shading device away from the building facade 10 is 500mm to 1500mm away from the building facade 10. In order to reduce the solar radiation heat entering the building interior according to the energy-saving requirements of buildings in different regions and types, and the comprehensive solar heat coefficient of the building's exterior windows under different window-to-wall area ratios. In the specific design, in order to meet this requirement, it can be achieved by increasing the building's external shading or reducing the total solar energy transmittance of the building's windows, so that the functional relationship between the two can be obtained, and combined with the influence of factors such as photovoltaic power generation and shadow shielding, the projection width of the photovoltaic shading device is set in the range of 500mm to 1500mm. Exemplarily, the projection width can be 500mm, 800mm, 1000mm, 1200mm, 1400mm, 1500mm, etc., which shall be subject to the actual situation.

[0118] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0119] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A photovoltaic sunshade device, characterized in that: include: The photovoltaic assembly comprises a first side back frame and a second side back frame spaced apart along a first direction, wherein the first side back frame comprises a first plug-in portion; A first support beam, the first support beam having a first end and a second end opposite to each other along the first direction, the first end being used to be connected to the building facade, and the second end being suspended; The first fixing member and the second fixing member are arranged on the first support beam and spaced apart from each other along the first direction. The first fixing member is arranged close to the first end, and the second fixing member is arranged close to the second end. The first fixing member includes a second plug-in portion. The first side back frame and the first fixing member are plug-fitted together through the first plug-in portion and the second plug-in portion; the second side back frame and the second fixing member are fixedly connected.

2. The photovoltaic sunshade device according to claim 1, characterized in that: The first plug-in portion includes a first assembly groove, and the second plug-in portion includes a first plug-in protrusion, and the first plug-in protrusion is plugged into the first assembly groove; wherein, The protruding end of the first plug-in protrusion faces the building facade, and the opening of the first assembly groove faces away from the building facade; Alternatively, the protruding end of the first plugging protrusion faces away from the building facade, and the opening direction of the first assembly groove faces the building facade.

3. The photovoltaic sunshade device according to claim 2, characterized in that: The second side back frame includes a second assembly groove, the second fixing member includes a second plugging protrusion, the second plugging protrusion is plugged into the second assembly groove, or the second plugging protrusion is pressed on the second assembly groove; Wherein, the protruding end of the second plug-in protrusion faces away from the building facade, and the opening of the second assembly groove faces the building facade; or, the protruding end of the second plug-in protrusion faces the building facade, and the opening of the second assembly groove faces away from the building facade.

4. The photovoltaic sunshade device according to claim 2, characterized in that: The photovoltaic sunshade device also includes one or more middle back frames, the multiple middle back frames are arranged at intervals along the first direction, the middle back frame is fixed to the lower surface of the photovoltaic component and is located between the first side back frame and the second side back frame, the middle back frame includes a third assembly groove, a third fixing member is embedded in the third assembly groove, the third fixing member is fixed to the first support beam, and the third fixing member includes a third plug-in protrusion; wherein, The opening direction of the third assembly groove is the same as the opening direction of the first assembly groove, and the orientation of the third plugging protrusion is the same as the orientation of the first plugging protrusion; Alternatively, the opening direction of the third assembly groove is opposite to the opening direction of the first assembly groove, and the orientation of the third plugging protrusion is opposite to the orientation of the first plugging protrusion.

5. The photovoltaic sunshade device according to claim 2, characterized in that: The first assembly groove extends along the length direction of the first side back frame, and both ends of the first assembly groove are through or closed.

6. The photovoltaic sunshade device according to claim 3, characterized in that: The first fixing member is a first pressing block, one end of which is detachably connected to the first supporting beam via a threaded connector, and the other end of the first pressing block is a first plug-in protrusion, which is plugged into the first assembly groove; or The second fixing member is a second pressure block, one end of which is detachably connected to the first support beam via a threaded connector, and the other end of the second pressure block is a second plug-in protrusion, which is plugged into the second assembly groove, or the second plug-in protrusion is crimped onto the second assembly groove.

7. The photovoltaic sunshade device according to claim 1 or 2, characterized in that: The upper surface of the first support beam has an accommodating groove extending along the first direction for accommodating cables.

8. The photovoltaic sunshade device according to claim 1 or 2, characterized in that: At least one first connection hole is formed at the first end of the first support beam, and the axis of the first connection hole is parallel to the length direction of the first side back frame; The photovoltaic shading device also includes an adapter, which is used to be fixed to the building facade. The adapter is provided with a plurality of second connection holes for cooperating with the first connection holes. The plurality of second connection holes are arranged at intervals along the arc direction. The first connection hole is fixedly connected to the second connection holes different in the arc direction to adjust the angle of the first support beam relative to the building facade.

9. The photovoltaic sunshade device according to claim 8, characterized in that: It also includes a second support beam, which is used to be fixed on the building facade, and the adapter is fixed on the second support beam.

10. The photovoltaic sunshade device according to claim 1 or 2, characterized in that: The photovoltaic sunshade device further includes a rotating mechanism, and the rotating mechanism includes: A rotation drive component is used to be fixed to the building facade, the rotation end of the rotation drive component is connected to the first end, the rotation axis of the rotation end is parallel to the length direction of the first side back frame, and the rotation drive component is used to drive the first support beam to rotate around the rotation axis to adjust the angle of the first support beam relative to the building facade; a tracking system is used to monitor the position information of the sun relative to the photovoltaic module; A controller is connected to both the tracking system and the rotation driving component, and the controller is used to control the movement of the rotation driving component according to the monitored position information.

11. The photovoltaic sunshade device according to claim 1 or 2, characterized in that: It also includes a bridge frame, which is fixed to a position of the first support beam close to the second side back frame. The second side back frame is provided with a through hole, and the cables of the photovoltaic components pass through the through hole and are accommodated in the bridge frame.

12. The photovoltaic sunshade device according to claim 1 or 2, characterized in that: The photovoltaic assembly comprises a first side and a second side opposite to each other, the first side is close to the building facade, the second side is away from the building facade, and the photovoltaic assembly further comprises a third side and a fourth side opposite to each other; The first side back frame is connected to the first side, or the first side back frame is connected to the lower surface of the photovoltaic module close to the first side; the second side back frame is connected to the second side, or the second side back frame is connected to the lower surface of the photovoltaic module close to the second side; The multiple battery cells of the photovoltaic module are connected in series along the length direction of the first side, and the multiple battery strings arranged along the length direction of the third side are connected in parallel.

13. The photovoltaic sunshade device according to claim 1 or 2, characterized in that: The number of the first support beams is at least two, the number of the photovoltaic components is at least one, a single photovoltaic component is supported by two corresponding first support beams, and at least one photovoltaic component is supported on the at least two first support beams.

14. The photovoltaic sunshade device according to claim 13, characterized in that: It also includes a leveling rod, the photovoltaic assembly includes a first side and a second side opposite to each other, the first side is close to the building facade, the leveling rod extends along the length direction of the first side, the leveling rod is connected to multiple first support beams, and the leveling rod is used to make the top surfaces of the multiple first support beams located in the same plane.

15. A sunshade building, characterized in that: include: Building body; The photovoltaic sunshade device according to any one of claims 1 to 14, wherein the photovoltaic sunshade device is arranged on the building facade of the building body; The angle between the photovoltaic shading device and the building facade is greater than or equal to 60 degrees and less than or equal to 5 degrees.

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