Telescopic photovoltaic sunlight shed

Abstract

The utility model discloses a telescopic photovoltaic sunshine shed, which comprises an installation support and a photovoltaic array installed on the installation support, the photovoltaic array comprises a fixed photovoltaic array and at least one telescopic photovoltaic array, and the telescopic photovoltaic array has an extension state and a contraction state. When power generation is preferential, the telescopic photovoltaic array is stretched, in the stretching state, the telescopic photovoltaic array and the fixed photovoltaic array are arranged side by side and do not generate shadow shielding mutually, the area of the fixed photovoltaic array and the area of the telescopic photovoltaic array are the largest, and when lighting is preferential, the telescopic photovoltaic array is contracted, and in the contracted state, the telescopic photovoltaic array and the fixed photovoltaic array are arranged side by side and do not generate shadow shielding mutually, so that the maximum power generation efficiency is guaranteed. The telescopic photovoltaic array and the fixed photovoltaic array are arranged in a stacked mode, at the moment, the power generation efficiency is minimum, but due to the fact that shielding of the telescopic photovoltaic array does not exist, the lighting effect is good. The utility model is especially suitable for a large-size photovoltaic assembly to form a large-area photovoltaic array, thereby facilitating the improvement of the power generation efficiency.

Description

Technical field

[0001] The utility model belongs to the technical field of photovoltaics, and in particular relates to a photovoltaic sun shed. [Background Technology]

[0002] Ground-mounted photovoltaic power stations have been widely used for many years, primarily in centralized installations. With the continuous evolution of residential photovoltaic business models, installations within customers' homes have emerged. This installation method primarily focuses on generating revenue. The brackets and modules are fixed in place and cannot be moved after installation, rendering them non-functional. The station's service life is generally 25 years. While generating revenue, this process also significantly impacts indoor lighting.

[0003] A Chinese invention patent application, publication number CN 112746755 A, discloses a sunshade comprising uprights, a first crossbeam, a second crossbeam, and a flip assembly. The flip assembly comprises a hollow tube, a flip frame, a screw sleeve that slides relative to the hollow tube, a screw nut, a telescopic plate, and a push rod. The first end of the hollow tube is hinged to the first crossbeam, the screw nut drives the screw sleeve to slide relative to the hollow tube, and the screw nut is rotatable relative to the second crossbeam. The screw sleeve passes through the second crossbeam and engages with the screw nut. The push rod is hinged to the screw sleeve and the telescopic plate. The second end of the hollow tube and the screw nut are configured to be driven to rotate, thereby driving the telescopic plate and the hollow tube to move. The sunshade has a ventilated state and a closed state. In the ventilated state, the flip frame is vertical relative to the ground, and the telescopic plate is retracted into the flip frame. In the closed state, the flip frame is horizontal relative to the ground. However, the flipping method used to achieve the transition between the ventilated and closed states is not suitable for installing large-sized photovoltaic modules, resulting in low power generation efficiency. [Utility Model Content]

[0004] In view of the deficiencies in the existing technology, the technical problem to be solved by the present invention is to provide a retractable photovoltaic sun shed that can switch between power generation and lighting, and is suitable for photovoltaic modules of different sizes, which is conducive to improving power generation efficiency.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A retractable photovoltaic sun shed comprises a mounting bracket and a photovoltaic array mounted on the mounting bracket, wherein the photovoltaic array comprises a fixed photovoltaic array and at least one retractable photovoltaic array, the retractable photovoltaic array having an extended state and a retracted state, the retractable photovoltaic array being arranged side by side with the fixed photovoltaic array in the extended state, and the retractable photovoltaic array being arranged in stacked arrangement with the fixed photovoltaic array in the retracted state, and the mounting bracket being provided with a retractable auxiliary structure for extending and retracting the retractable photovoltaic array.

[0007] Preferably, the telescopic auxiliary structure includes guide rails arranged on both sides of the photovoltaic array and extending longitudinally, and rollers are respectively provided on both sides of the telescopic photovoltaic array. The telescopic photovoltaic array completes the extension and contraction process through the cooperation of the rollers and the guide rails.

[0008] Preferably, the retractable photovoltaic array includes a first retractable photovoltaic array and a second retractable photovoltaic array. In the extended state, the fixed photovoltaic array, the first retractable photovoltaic array and the second retractable photovoltaic array are arranged longitudinally; in the retracted state, the fixed photovoltaic array is stacked with the first retractable photovoltaic array and / or the second retractable photovoltaic array.

[0009] Preferably, in the extended state, the fixed photovoltaic array, the first retractable photovoltaic array and the second retractable photovoltaic array are arranged obliquely downward in the longitudinal direction; and / or, in the retracted state, the first retractable photovoltaic array and / or the second retractable photovoltaic array are stacked below the fixed photovoltaic array.

[0010] Preferably, the first retractable photovoltaic array is provided with a first roller, the second retractable photovoltaic array is provided with a second roller, the retractable auxiliary structure includes a first guide rail and a second guide rail, the first roller cooperates with the first guide rail, the second roller cooperates with the second guide rail, the horizontal projections of the first guide rail and the second guide rail are laterally staggered and the height of the first guide rail is higher than that of the second guide rail.

[0011] Preferably, the telescopic auxiliary structure also includes a cable connected to the telescopic photovoltaic array, and the cable is connected to the winch. When the winch pulls the cable, the telescopic photovoltaic array is contracted by the cable. When the winch releases the cable, the telescopic photovoltaic array extends.

[0012] Preferably, the mounting bracket includes columns arranged on both lateral sides of the photovoltaic array, and the upper ends of the columns are connected to the guide rails or the fixed photovoltaic array.

[0013] Preferably, the winch is mounted on a column; and / or a pulley for supporting a cable is provided at one longitudinal end of the guide rail.

[0014] Preferably, limit blocks are provided at both longitudinal ends of the guide rail.

[0015] Preferably, the fixed photovoltaic array and the retractable photovoltaic array both include a photovoltaic bracket and a photovoltaic component mounted on the photovoltaic bracket.

[0016] The utility model adopts the above technical solution, which has the following beneficial effects:

[0017] 1. The retractable photovoltaic array can be extended and retracted. When power generation is prioritized, the retractable photovoltaic array is extended. In the extended state, the retractable photovoltaic array and the fixed photovoltaic array are arranged side by side, but are not limited to being extended side by side on the same plane. They will not shadow each other. The fixed photovoltaic array and the retractable photovoltaic array have the largest area to ensure maximum power generation efficiency. When lighting is prioritized, the retractable photovoltaic array is retracted. In the retracted state, the retractable photovoltaic array and the fixed photovoltaic array are stacked. At this time, the power generation efficiency is the lowest, but since there is no shading from the retractable photovoltaic array, the lighting effect is better.

[0018] Because the retractable photovoltaic array is stacked with the fixed photovoltaic array in the retracted state, it can slide relative to the fixed photovoltaic array to facilitate transition between the extended and retracted states. Furthermore, the system can be used with photovoltaic modules of different sizes, especially large ones, forming a large-area photovoltaic array, thereby improving power generation efficiency.

[0019] In addition, the mounting bracket is provided with a telescopic auxiliary structure for extending and contracting the telescopic photovoltaic array, which makes the extension and contraction of the telescopic photovoltaic array more convenient and labor-saving, and is conducive to switching between the extended and telescopic states.

[0020] 2. For the telescopic auxiliary structure, guide rails extending longitudinally are provided on both sides of the photovoltaic array. Rollers are provided on both sides of the telescopic photovoltaic array to cooperate with the guide rails on both sides. Through the cooperation of the rollers and the guide rails, the telescopic photovoltaic array can be extended and retracted more conveniently and labor-savingly.

[0021] 3. The photovoltaic array includes a first retractable photovoltaic array and a second retractable photovoltaic array. In the extended state, the fixed photovoltaic array, the first retractable photovoltaic array, and the second retractable photovoltaic array are arranged longitudinally. Through the design of the two retractable photovoltaic arrays, the overall area of ​​the photovoltaic array is further increased. Of course, more retractable photovoltaic arrays can be set as needed.

[0022] In the retracted state, for the case of multiple retractable photovoltaic arrays, the first retractable photovoltaic array and the second retractable photovoltaic array can be stacked with the fixed photovoltaic array, or only part of the retractable photovoltaic array can be retracted or extended as needed, which has greater flexibility.

[0023] 4. Since the fixed photovoltaic array, the first retractable photovoltaic array and the second retractable photovoltaic array are arranged obliquely downward along the longitudinal direction, the entire photovoltaic array is tilted toward the direction of sunlight, which is beneficial to improving power generation efficiency.

[0024] In the retracted state, the retractable photovoltaic array is stacked below the fixed photovoltaic array to ensure that the fixed photovoltaic array can maintain power generation in the retracted state. Of course, the retractable photovoltaic array can also be stacked above the fixed photovoltaic array.

[0025] 5. The first retractable photovoltaic array is provided with a first roller, the second retractable photovoltaic array is provided with a second roller, the retractable auxiliary structure is provided with a first guide rail and a second guide rail, the first roller cooperates with the first guide rail, the second roller cooperates with the second guide rail, the horizontal projections of the first guide rail and the second guide rail are arranged laterally staggered, and the height of the first guide rail is higher than the second guide rail. In this way, the first retractable photovoltaic array and the second retractable photovoltaic array can not interfere with each other when retracting or extending. Of course, when more retractable photovoltaic arrays are provided, corresponding guide rails need to be added, that is, each retractable photovoltaic array is independently provided with a guide rail to ensure that each retractable photovoltaic array can be independently extended and retracted.

[0026] 6. Since the retractable photovoltaic array is connected with a cable, and the cable is connected to the winch, the retractable photovoltaic array can be pulled to retract through the winch and the cable. Since the roller and the guide rail cooperate, the resistance during the pulling process is small.

[0027] Since the fixed photovoltaic array, the first retractable photovoltaic array and the second retractable photovoltaic array are arranged obliquely downward in the longitudinal direction, the corresponding guide rails also extend obliquely downward. Therefore, when the retractable photovoltaic array is extended, the cable is relaxed, and the retractable photovoltaic array naturally extends due to the cooperation between the roller and the guide rail.

[0028] Of course, each retractable photovoltaic array is independently connected to a cable to ensure that each retractable photovoltaic array can be retracted independently.

[0029] 7. Columns are provided on both sides of the photovoltaic array, and the upper ends of the columns are connected to the guide rails and the fixed photovoltaic array. That is, a combination of columns and guide rails is independently provided for each retractable photovoltaic array, and columns are also independently provided for the fixed photovoltaic array.

[0030] 8. Since limit blocks are provided at both longitudinal ends of the guide rail, derailment of the roller when it moves to the end of the guide rail can be avoided. Since a pulley supporting the cable is provided at the longitudinal upper end of the guide rail, interference of the guide rail with the cable can be avoided.

[0031] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0032] The utility model is further described below with reference to the accompanying drawings:

[0033] Figure 1 This is a top view of a retractable photovoltaic sun shed according to the utility model, when the retractable photovoltaic array is in an extended state;

[0034] Figure 2 This is a lateral side view of a retractable photovoltaic sun shed in the utility model when the retractable photovoltaic array is in the extended state;

[0035] Figure 3 This is a longitudinal side view of a utility model retractable photovoltaic sun shed with the retractable photovoltaic array in the extended state;

[0036] Figure 4 for Figure 3 A in the middle is an enlarged structural diagram;

[0037] Figure 5 This is a top view of a retractable photovoltaic sun shed according to the utility model when the retractable photovoltaic array is in a retracted state;

[0038] Figure 6 This is a lateral side view of a utility model retractable photovoltaic sun shed with the retractable photovoltaic array in a retracted state;

[0039] Figure 7 for Figure 6 The enlarged structural diagram at B in the middle;

[0040] Figure 8 This is a rendering of a retractable photovoltaic sun shed installed in a courtyard with the retractable photovoltaic array in a retracted state;

[0041] Figure 9 This is a rendering of a retractable photovoltaic sun shed installed in a courtyard with the retractable photovoltaic array in an extended state;

[0042] Figure markings: mounting bracket 100, first guide rail 11, first limit block 111, first pulley 112, second guide rail 12, second limit block 121, second pulley 122, column 13, first winch 131, first cable 1311, second winch 132, second cable 1321, photovoltaic array 200, first retractable photovoltaic array 21, first roller 211, second retractable photovoltaic array 22, second roller 221, fixed photovoltaic array 23. [Specific implementation method]

[0043] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0044] Those skilled in the art will appreciate that, unless there is any conflict, the features in the following embodiments and implementations may be combined with each other.

[0045] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. For example, the terms "upper," "lower," "horizontal," and "longitudinal" used below to indicate orientation or positional relationships are based solely on the orientation or positional relationships shown in the accompanying drawings and are used solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation or be constructed or operated in a specific orientation. Therefore, they should not be understood as limiting the utility model.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0048] Reference Figures 1 to 9 As shown, a retractable photovoltaic sun shed includes a mounting bracket 100 and a photovoltaic array 200 mounted on the mounting bracket 100, wherein the photovoltaic array 200 includes a fixed photovoltaic array 23 and at least one retractable photovoltaic array, wherein the retractable photovoltaic array has an extended state and a retracted state, and the retractable photovoltaic array is stacked with the fixed photovoltaic array in the retracted state, and the mounting bracket is provided with a retractable auxiliary structure for extending and retracting the retractable photovoltaic array.

[0049] The retractable photovoltaic array can be extended and retracted. When power generation is prioritized, the retractable photovoltaic array is extended. In the extended state, the retractable photovoltaic array and the fixed photovoltaic array are arranged side by side, but are not limited to being extended side by side on the same plane. They will not shadow each other. The fixed photovoltaic array and the retractable photovoltaic array have the largest area to ensure maximum power generation efficiency. When lighting is prioritized, the retractable photovoltaic array is retracted. In the retracted state, the retractable photovoltaic array and the fixed photovoltaic array are stacked. At this time, the power generation efficiency is the lowest, but since there is no shading from the retractable photovoltaic array, the lighting effect is better.

[0050] Because the retractable photovoltaic array is stacked with the fixed photovoltaic array in the retracted state, it can slide relative to the fixed photovoltaic array to facilitate transition between the extended and retracted states. Furthermore, the system can be used with photovoltaic modules of different sizes, especially large ones, forming a large-area photovoltaic array, thereby improving power generation efficiency.

[0051] In addition, the mounting bracket is provided with a telescopic auxiliary structure for extending and contracting the telescopic photovoltaic array, which makes the extension and contraction of the telescopic photovoltaic array more convenient and labor-saving, and is conducive to switching between the extended and telescopic states.

[0052] In one embodiment, the telescopic auxiliary structure includes guide rails disposed on both lateral sides of the photovoltaic array and extending longitudinally. Rollers are provided on each lateral side of the telescopic photovoltaic array, and the rollers cooperate with the guide rails to allow the telescopic photovoltaic array to extend and retract. Furthermore, the cooperation between the rollers and the guide rails makes extending and retracting the telescopic photovoltaic array more convenient and labor-saving.

[0053] Specifically, the photovoltaic array includes a first retractable photovoltaic array 21 and a second retractable photovoltaic array 22. In the extended state, the fixed photovoltaic array, the first retractable photovoltaic array, and the second retractable photovoltaic array are arranged in the longitudinal direction. Of course, in order to facilitate extension and retraction, the fixed photovoltaic array, the first retractable photovoltaic array, and the second retractable photovoltaic array have a height difference, rather than being extended side by side on the same plane. Through the design of two retractable photovoltaic arrays, the overall area of ​​the photovoltaic array is further increased. Of course, more retractable photovoltaic arrays can be set as needed, such as a third retractable photovoltaic array and a fourth retractable photovoltaic array. In the retracted state, the fixed photovoltaic array is stacked with the first retractable photovoltaic array and the second retractable photovoltaic array. Of course, only part of the retractable photovoltaic array can be retracted or extended as needed, which has greater flexibility.

[0054] Preferably, in the extended state, the fixed photovoltaic array 23, the first retractable photovoltaic array 21, and the second retractable photovoltaic array 22 are arranged diagonally downward along the longitudinal direction; this creates an inclination angle for the entire photovoltaic array toward the direction of sunlight, which helps improve power generation efficiency. In the retracted state, the first retractable photovoltaic array 21 and the second retractable photovoltaic array 22 are stacked below the fixed photovoltaic array 23. This ensures that the fixed photovoltaic array can maintain power generation even in the retracted state. Of course, the retractable photovoltaic array can also be stacked above the fixed photovoltaic array.

[0055] Specifically, the first retractable photovoltaic array 21 is provided with a first roller 211, and the second retractable photovoltaic array 22 is provided with a second roller 221. The retractable auxiliary structure is provided with a first guide rail 11 and a second guide rail 12. The first roller 211 cooperates with the first guide rail 11, and the second roller 221 cooperates with the second guide rail 12. The horizontal projections of the first guide rail 11 and the second guide rail 12 are laterally staggered, and the first guide rail is higher than the second guide rail. Of course, the first and second guide rails are also arranged at an angle corresponding to the overall inclination of the photovoltaic array. The longitudinal extension lengths of the first and second guide rails are different, but the longitudinal upper ends of both extend below the longitudinal upper side of the fixed photovoltaic array, and the longitudinal lower ends extend to the point where the corresponding retractable photovoltaic array can be fully extended. In this way, the first and second retractable photovoltaic arrays always maintain a certain height difference when retracting or extending, and do not interfere with each other. Of course, when more retractable photovoltaic arrays are provided, corresponding guide rails need to be added, that is, each retractable photovoltaic array is provided with a separate guide rail with the same height difference to ensure that each retractable photovoltaic array can be independently extended.

[0056] In another embodiment, the telescopic auxiliary structure also includes a cable connected to the telescopic photovoltaic array, and the cable is connected to the winch. When the winch pulls the cable, the telescopic photovoltaic array is retracted by the cable, and when the winch releases the cable, the telescopic photovoltaic array is extended. In this way, the telescopic photovoltaic array can be retracted by the winch and the cable, and since the roller and the guide rail cooperate, the resistance during the pulling process is small. Of course, each telescopic photovoltaic array is independently connected to the cable and the winch to ensure that each telescopic photovoltaic array can be independently extended and retracted. Taking the above-mentioned first telescopic photovoltaic array and the second telescopic photovoltaic array as an example, a first cable 1311 and a first winch 131 are set corresponding to the first telescopic photovoltaic array, and a second cable 1321 and a second winch 132 are set corresponding to the second telescopic photovoltaic array.

[0057] Because the fixed photovoltaic array, the first retractable photovoltaic array, and the second retractable photovoltaic array are arranged diagonally downward in the longitudinal direction, the corresponding guide rails also extend diagonally downward. The angle between the guide rails and the horizontal should not be too large, as this reduces effort when the cables pull the retractable photovoltaic array, facilitating installation and use in a courtyard. A preferred angle is 2°. Therefore, when the retractable photovoltaic array is extended, the cables relax, and the rollers and guide rails cooperate to naturally extend the retractable photovoltaic array.

[0058] In one embodiment, the mounting bracket 100 includes columns 13 positioned on either side of the photovoltaic array. The upper ends of the columns are connected to rails or fixed photovoltaic arrays. Specifically, a column and rail combination is independently provided for each retractable photovoltaic array, while columns are also independently provided for each fixed photovoltaic array. The columns and rails can be connected using bolts, or welding.

[0059] Both the columns and rails can be made of square steel tubes. Of course, they can also be replaced with other structural profiles, including zinc-aluminum-magnesium materials. Not only does this offer lower material costs, but it also offers excellent corrosion resistance, high strength, and a long service life.

[0060] To facilitate installation of the winch, it is mounted on a column at a certain height above the ground for easy operation. Preferably, the winch is mounted on the rearmost column in the longitudinal direction. For example, the first winch is connected to multiple columns connected to the first guide rail, but the winch is mounted on the rearmost column. The free end of the first cable is connected to the longitudinal upper end of the first retractable photovoltaic array. Furthermore, two first cables and first winches are arranged side by side, and the two first winches are mounted on the two rearmost columns, respectively.

[0061] In one embodiment, a pulley supporting a cable is provided at one longitudinal end of the guide rail. Because the guide rail is arranged at an angle, the pulley is positioned at the longitudinal upper end, thereby preventing the guide rail from interfering with the cable. Taking the aforementioned arrangement of first and second guide rails as an example, a first pulley 112 is provided for the first guide rail 11, and a second pulley 122 is provided for the second guide rail 12, respectively, to mate with the first cable 1311 and the second cable 1321.

[0062] In one embodiment, stoppers are provided at both longitudinal ends of the guide rail, which can be welded or bolted. The stoppers prevent the rollers from derailing when they reach the ends of the guide rails. Taking the first and second guide rails described above as an example, a first stopper 111 is provided for the first guide rail 11, and a second stopper 121 is provided for the second guide rail 12.

[0063] Furthermore, both the fixed photovoltaic array and the retractable photovoltaic array comprise a photovoltaic support and photovoltaic modules mounted on the photovoltaic support, and can be installed using conventional mounting structures. Thus, after being mounted on the photovoltaic support, multiple photovoltaic modules form a single unit that can be moved as a whole, facilitating the expansion and contraction of multiple retractable photovoltaic arrays.

[0064] like Figure 8 and Figure 9 As shown, the retractable photovoltaic sunshade of the present invention can fully utilize its advantages when installed in a courtyard. The figure shows a typical Chinese courtyard with a retractable photovoltaic sunshade installed in the courtyard in the middle of the house. When power generation is prioritized, the retractable photovoltaic array is extended. In this state, the fixed photovoltaic array and the retractable photovoltaic array have the largest area, ensuring maximum power generation efficiency. When lighting is prioritized, the retractable photovoltaic array is retracted. In the retracted state, the retractable photovoltaic array and the fixed photovoltaic array are stacked. In this state, power generation efficiency is minimized, but the lighting effect is better because there is no obstruction from the retractable photovoltaic array.

[0065] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art will understand that the utility model includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the utility model are intended to be included within the scope of the claims.

Claims

1. A retractable photovoltaic sun shed, comprising a mounting bracket and a photovoltaic array mounted on the mounting bracket, characterized in that: The photovoltaic array includes a fixed photovoltaic array and at least one retractable photovoltaic array. The retractable photovoltaic array has an extended state and a retracted state. The retractable photovoltaic array is arranged side by side with the fixed photovoltaic array in the extended state, and is stacked with the fixed photovoltaic array in the retracted state. The mounting bracket is provided with a retractable auxiliary structure for extending and retracting the retractable photovoltaic array.

2. A retractable photovoltaic sun shed according to claim 1, characterized in that: The telescopic auxiliary structure includes guide rails arranged on both sides of the photovoltaic array and extending longitudinally. Rollers are respectively provided on both sides of the telescopic photovoltaic array. The telescopic photovoltaic array completes the extension and contraction process through the cooperation of the rollers and the guide rails.

3. The retractable photovoltaic sun shed according to claim 2, characterized in that: The retractable photovoltaic array includes a first retractable photovoltaic array and a second retractable photovoltaic array. In the extended state, the fixed photovoltaic array, the first retractable photovoltaic array, and the second retractable photovoltaic array are arranged longitudinally; in the retracted state, the fixed photovoltaic array is stacked with the first retractable photovoltaic array and / or the second retractable photovoltaic array.

4. The retractable photovoltaic sun shed according to claim 3, characterized in that: In the extended state, the fixed photovoltaic array, the first retractable photovoltaic array, and the second retractable photovoltaic array are arranged obliquely downward in the longitudinal direction; and / or, in the retracted state, the first retractable photovoltaic array and / or the second retractable photovoltaic array are stacked below the fixed photovoltaic array.

5. The retractable photovoltaic sun shed according to claim 3, characterized in that: The first retractable photovoltaic array is provided with a first roller, the second retractable photovoltaic array is provided with a second roller, the retractable auxiliary structure includes a first guide rail and a second guide rail, the first roller cooperates with the first guide rail, the second roller cooperates with the second guide rail, the horizontal projections of the first guide rail and the second guide rail are laterally staggered and the height of the first guide rail is higher than that of the second guide rail.

6. The retractable photovoltaic sun shed according to claim 2, characterized in that: The telescopic auxiliary structure also includes a cable connected to the telescopic photovoltaic array, and the cable is connected to the winch. When the winch pulls the cable, the telescopic photovoltaic array is pulled to shrink through the cable. When the winch releases the cable, the telescopic photovoltaic array is extended.

7. The retractable photovoltaic sun shed according to claim 6, characterized in that: The mounting bracket includes columns arranged on both sides of the photovoltaic array in the transverse direction, and the upper ends of the columns are connected to the guide rails or the fixed photovoltaic array.

8. The retractable photovoltaic sun shed according to claim 7, characterized in that: The winch is mounted on a column; and / or a pulley for supporting a cable is provided at one longitudinal end of the guide rail.

9. The retractable photovoltaic sun shed according to claim 2, characterized in that: Limit blocks are provided at both longitudinal ends of the guide rail.

10. The retractable photovoltaic sun shed according to claim 1, characterized in that: The fixed photovoltaic array and the retractable photovoltaic array both include a photovoltaic support and a photovoltaic component installed on the photovoltaic support.

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