Photovoltaic device, photovoltaic system and method for construction of a photovoltaic system

Abstract

The application discloses a photovoltaic device, a photovoltaic system and a construction method of the photovoltaic system, and belongs to the technical field of photovoltaic technology. The photovoltaic device comprises at least one photovoltaic module group, a plurality of photovoltaic modules of the photovoltaic module group are sequentially hinged, the photovoltaic module group is provided with a roller on at least one side, and the roller is suitable for rolling cooperation with a module cable of the photovoltaic system; a box body, the photovoltaic module group is installed on the box body, and the box body comprises a base and a side wall; the base is provided with an anchoring point, the photovoltaic module group is supported on the base, the base is suitable for being installed on a first side column of the photovoltaic system, and the side wall is detachably installed on the base. According to the photovoltaic device, a large number of complex and tedious construction links can be transferred from high altitude to the ground, the photovoltaic module group can be quickly positioned and installed at high altitude, the wind area of the photovoltaic module can be greatly reduced under strong wind weather by switching the plurality of photovoltaic modules between a folded state and an unfolded state, and the economy, reliability and durability of the photovoltaic system are improved.

Description

Technical Field

[0001] This application belongs to the field of photovoltaic technology, and in particular relates to a photovoltaic device, a photovoltaic system, and a construction method for a photovoltaic system. Background Technology

[0002] In photovoltaic (PV) systems, as the power and efficiency requirements of PV modules increase, the size and weight of individual PV modules also increase. In related technologies, PV support structures are first constructed on-site. These support structures are often quite high, and when installing multiple PV modules at height, each module must be lifted individually to its corresponding position along the length of the support cable. Positioning and securing multiple PV modules at high altitudes is inconvenient and complex, resulting in low efficiency, impacting construction progress, and increasing labor costs and safety risks. Furthermore, to cope with strong winds, related technologies incorporate numerous trusses and various wind-resistant structures on the PV support structures. However, this design increases the cost of the PV system, and the actual protective effect of such structures remains limited in extreme weather conditions. Overall, this design lacks economic efficiency and reliability in terms of wind resistance. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a photovoltaic device, a photovoltaic system, and a construction method for the photovoltaic system, which can transfer a large number of complex and cumbersome construction steps from high altitudes to the ground, and enable the photovoltaic module group to be stably installed in the preset working position, thereby improving the efficiency, convenience, safety, and economy of construction.

[0004] In a first aspect, this application provides a photovoltaic device, comprising:

[0005] At least one photovoltaic module group, wherein a plurality of photovoltaic modules of the photovoltaic module group are stacked sequentially along a first direction, wherein the photovoltaic module located at the end is hinged to the adjacent photovoltaic module on one side, and the other photovoltaic modules are respectively hinged to the two adjacent photovoltaic modules on their opposite sides, and the photovoltaic module group is provided with a roller on at least one side, the roller being adapted to roll with the module cable of the photovoltaic system;

[0006] The housing includes a base and side panels. The base is provided with anchor points. The photovoltaic module group is supported on the base. The base is adapted to be installed on the first side column of the photovoltaic system. The side panels are detachably installed on the base.

[0007] According to the photovoltaic device of this application, by sequentially hinged and stacked multiple photovoltaic modules and installed in a housing, the pre-installation of multiple photovoltaic modules can be initially completed in the ground area, transferring a large number of complex and tedious construction steps from high altitude to the ground. It also enables the photovoltaic module group to be quickly positioned and installed in the air, reducing the steps and time of high-altitude operations, and improving the efficiency, convenience, safety and economy of construction. By setting rollers on the photovoltaic module group, the photovoltaic module group can be smoothly unfolded to the preset working position, helping the photovoltaic modules to achieve rapid and accurate attitude adjustment and positioning. By switching multiple photovoltaic modules between folded and unfolded states, the wind-exposed area can be significantly reduced in strong wind weather, effectively reducing the risk of wind load damage to the structure, thereby improving the economy, reliability and durability of the photovoltaic system.

[0008] According to one embodiment of this application, the base includes:

[0009] The base body, and the anchor point is installed on the base body;

[0010] A support beam is mounted on the base body via leveling feet to support the photovoltaic module assembly.

[0011] According to one embodiment of this application, within the photovoltaic module group, the roller is mounted on a hinge between adjacent photovoltaic modules.

[0012] According to one embodiment of this application, all but the first hinge member on the first side of the photovoltaic module assembly are equipped with the roller.

[0013] According to one embodiment of this application, the hinge member on which at least part of the roller is mounted is provided with a limiting bracket, and the limiting bracket is provided on both sides of the corresponding roller. The limiting bracket is adapted to be located on both sides of the component cable and spaced apart from the component cable.

[0014] According to one embodiment of this application,

[0015] Two adjacent photovoltaic modules in the photovoltaic module group are hinged together by a first hinge.

[0016] And / or,

[0017] In the case where there are multiple photovoltaic module groups, the multiple photovoltaic module groups are distributed along the second direction, and two adjacent photovoltaic modules within the photovoltaic module group are hinged at the top corner by a composite hinge, and the composite hinge is also connected to the photovoltaic module adjacent along the second direction.

[0018] According to one embodiment of this application, the photovoltaic device further includes:

[0019] An upper hinge and a lower hinge are provided, wherein two adjacent photovoltaic modules along the first direction are hinged by one of the upper hinge and the lower hinge, and the upper hinge and the lower hinge are staggered along the first direction; wherein,

[0020] The photovoltaic module group has a folded state and an unfolded state. In the folded state, the multiple photovoltaic modules are stacked sequentially along a first direction, with the upper hinge located above the photovoltaic modules and the lower hinge located below the photovoltaic modules. In the unfolded state, the multiple photovoltaic modules are hinged sequentially along the first direction, and the height of the hinge axis of the lower hinge is lower than the height of the hinge axis of the upper hinge.

[0021] According to the photovoltaic device of this application, by setting the height of the hinge axis of the lower hinge to be lower than the height of the hinge axis of the upper hinge, the torque borne by the photovoltaic module during the folding process drives the upper hinge to move upward, reducing the risk of spatial interference between the upper hinge and other components of the photovoltaic system. This helps to ensure the smooth folding action of the photovoltaic module in its unfolded state, improves the power generation efficiency, electrical wiring simplicity and economy, wind resistance safety and disassembly convenience of the photovoltaic system, reduces the risk of structural damage caused by collisions or impacts between components, thereby reducing the failure rate of the photovoltaic system and enhancing the reliability and operating economy of the photovoltaic system during long-term operation.

[0022] According to one embodiment of this application,

[0023] In the folded state, the two photovoltaic modules connected to the same lower hinge are located between the two hinge axes of the lower hinge;

[0024] When switching from the unfolded state to the folded state, the pair of component connectors of the lower hinge pivot in a direction toward each other.

[0025] According to one embodiment of this application, the lower hinge member includes:

[0026] Hinged mount, used for mounting the component cables of a photovoltaic system;

[0027] A pair of component connectors arranged opposite each other along a first direction are hinged to the hinge seat and have a connection structure for connecting to the photovoltaic module.

[0028] According to one embodiment of this application,

[0029] In the unfolded state, the hinge axis between the component connector and the hinge seat is located below the connection structure;

[0030] And / or,

[0031] In the unfolded state, the distance between the two connecting structures of the lower hinge is less than the distance between the two hinge axes, and the connecting structure is located above the hinge axis.

[0032] Secondly, this application provides a photovoltaic system, comprising:

[0033] The first side support structure includes a first side column and a base for the photovoltaic device as described in any of the above.

[0034] Second side support structure;

[0035] A component cable is connected between the first side support structure and the second side support structure, and the component cable is anchored to the anchor point of the base;

[0036] At least one photovoltaic module group of the photovoltaic device as described above, wherein the roller of the photovoltaic device is supported on the module cable, and the photovoltaic module group of the photovoltaic device is adapted to switch between an unfolded state and a folded state.

[0037] According to the photovoltaic system of this application, by adopting the above-mentioned photovoltaic device, multiple photovoltaic modules can be sequentially hinged and stacked and installed in the housing. The pre-installation of multiple photovoltaic modules can be initially completed in the ground area, transferring a large number of complex and tedious construction steps from high altitude to the ground. It also enables the photovoltaic module group to be quickly positioned and installed in the air, reducing the steps and time of high-altitude operations, and improving the efficiency, convenience, safety and economy of construction. By setting rollers on the photovoltaic module group, the photovoltaic module group can be smoothly unfolded to the preset working position, helping the photovoltaic modules to achieve rapid and accurate attitude adjustment and positioning. By switching multiple photovoltaic modules between folded and unfolded states, the wind-exposed area can be significantly reduced in strong wind weather, effectively reducing the risk of wind load damage to the structure, thereby improving the economy, reliability and durability of the photovoltaic system.

[0038] According to one embodiment of this application, the photovoltaic system further includes:

[0039] The component cable is installed in the central support structure via clamps.

[0040] According to one embodiment of this application, the photovoltaic system further includes:

[0041] A drive mechanism, installed in at least one of the first side support structure and the second side support structure, is used to drive the photovoltaic device to switch between an unfolded state and a folded state.

[0042] According to one embodiment of this application, the driving mechanism includes:

[0043] The power source is installed on the first side support structure;

[0044] The first transmission wheel is power-coupled to the power source;

[0045] The second drive wheel is installed on the second side support structure;

[0046] A transmission cable is wound around the first transmission wheel and the second transmission wheel;

[0047] The traction head is installed on the drive cable;

[0048] A traction bracket is mounted on the photovoltaic module near the second side support structure and is hinged to the traction head.

[0049] Thirdly, this application provides a method for constructing a photovoltaic system, including:

[0050] The photovoltaic device is lifted to the first side column, and the base is installed on the first side column;

[0051] Tension the component cable and disassemble the side panel;

[0052] The photovoltaic module assembly is unfolded along the component cable.

[0053] According to the construction method of the photovoltaic system of this application, by adopting the above-mentioned photovoltaic system, multiple photovoltaic modules can be sequentially hinged and stacked and installed in the box. The pre-installation of multiple photovoltaic modules can be completed in the ground area, transferring a large number of complex and tedious construction steps from high altitude to the ground. It also enables the photovoltaic module group to be quickly positioned and installed in the air, reducing the steps and time of high-altitude operations, and improving the efficiency, convenience, safety and economy of construction. By setting rollers on the photovoltaic module group, the photovoltaic module group can be smoothly unfolded to the preset working position, which helps the photovoltaic modules to achieve rapid and accurate attitude adjustment and positioning. By switching multiple photovoltaic modules between folded and unfolded states, the wind-exposed area can be significantly reduced in strong wind weather, effectively reducing the risk of wind load damage to the structure, thereby improving the economy, reliability and durability of the photovoltaic system.

[0054] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0055] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0056] Figure 1 This is one of the partial structural schematic diagrams of the photovoltaic system provided in the embodiments of this application;

[0057] Figure 2 yes Figure 1 A magnified view of a section at point J;

[0058] Figure 3 This is a second partial structural schematic diagram of the photovoltaic system provided in the embodiments of this application;

[0059] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0060] Figure 5 yes Figure 3 A magnified view of a section at point B in the middle;

[0061] Figure 6 yes Figure 3 A magnified view of a section at point C;

[0062] Figure 7 yes Figure 3 A magnified view of a section at point D;

[0063] Figure 8 yes Figure 3 A magnified view of a section at point E in the middle;

[0064] Figure 9 yes Figure 3 A magnified view of a section at point F in the middle;

[0065] Figure 10 This is the third partial structural schematic diagram of the photovoltaic system provided in the embodiments of this application;

[0066] Figure 11 yes Figure 10 A magnified view of a section at point G in the middle;

[0067] Figure 12 This is the fourth partial structural schematic diagram of the photovoltaic system provided in the embodiments of this application;

[0068] Figure 13 yes Figure 12 A magnified view of a section at point H in the middle;

[0069] Figure 14 yes Figure 12 A magnified view of a section at point I;

[0070] Figure 15 This is one of the partial structural schematic diagrams of the photovoltaic device provided in the embodiments of this application (tooling cables are also shown);

[0071] Figure 16 This is a second partial structural schematic diagram of the photovoltaic device provided in the embodiments of this application;

[0072] Figure 17This is the third partial structural schematic diagram of the photovoltaic device provided in the embodiments of this application;

[0073] Figure 18 This is a structural schematic diagram of the lower hinge member provided in an embodiment of this application (also showing the component cable);

[0074] Figure 19 This is a schematic flowchart of the construction method of the photovoltaic system provided in the embodiments of this application.

[0075] Figure label:

[0076] Photovoltaic module group 100, photovoltaic module 110, hinge 120;

[0077] Upper hinge 130, hinge axis 131 of the upper hinge;

[0078] The lower hinge 140 has a hinge axis 141.

[0079] Hinged base 142, component connector 143, connection structure 1431;

[0080] First side hinge 151, first side hinge structure 151a, second side hinge 153;

[0081] First hinge member 160, first hinge structure 161;

[0082] Composite hinge 170, second hinge structure 171;

[0083] 180mm rollers;

[0084] Limit bracket 190;

[0085] Box body 200, base 210, base body 211, support beam 212, leveling foot 213, anchor point 214, side wall 220, box column 221, back beam 222;

[0086] Tooling cable 300, tooling anchor 310;

[0087] First side support structure 410, first side column 411;

[0088] Second side support structure 420, second side column 421, second side beam 422;

[0089] Central support structure 430, support plate 433, clamp 434;

[0090] Component cable 700, component cable anchor 710, component cable bracket 720, first fixing plate 721, first limiting plate 722;

[0091] Drive mechanism 800, first transmission wheel 810, second transmission wheel 820, power source 830, transmission cable 840, traction head 850, second fixed plate 851, second limiting plate 852, traction bracket 860. Detailed Implementation

[0092] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0093] The following is for reference. Figures 1-19 This application describes a photovoltaic device, a photovoltaic system, and a method for constructing a photovoltaic system according to embodiments thereof.

[0094] Photovoltaic devices are equipment that directly convert solar energy into electrical energy using the photovoltaic effect.

[0095] like Figure 15 As shown, the photovoltaic device includes a photovoltaic module group 100 and a housing 200.

[0096] The photovoltaic module group 100 is an integral unit that can fold and unfold photovoltaic modules 110 in a coordinated manner. The photovoltaic module group 100 includes multiple photovoltaic modules 110 that are hinged together in sequence.

[0097] like Figure 15 As shown, the photovoltaic module group 100 includes at least one.

[0098] That is, a photovoltaic device includes one or more photovoltaic module groups 100.

[0099] like Figure 10 and Figure 15 As shown, multiple photovoltaic modules 110 of the photovoltaic module group 100 are stacked sequentially along the first direction X.

[0100] The photovoltaic module array 100 includes multiple photovoltaic modules 110, which can be stacked sequentially along a first direction X. The first direction X can be the thickness direction of the photovoltaic module 110. When the multiple photovoltaic modules 110 of the photovoltaic module array 100 are stacked sequentially, the multiple photovoltaic modules 110 are not fully unfolded, but partially or completely stacked together, which can save space.

[0101] like Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 13As shown, the photovoltaic module 110 located at the end is hinged to the adjacent photovoltaic module 110 on one side, and the other photovoltaic modules 110 are hinged to the two adjacent photovoltaic modules 110 on their opposite sides.

[0102] Within the photovoltaic module group 100, for the photovoltaic modules 110 located at both ends along the first direction X, each of them has one side hinged to the adjacent photovoltaic module 110 located in the middle along the first direction X, and the hinged photovoltaic modules 110 can rotate relative to each other; for the photovoltaic modules 110 located in the middle along the first direction X, their two sides arranged opposite to each other along the first direction X are respectively hinged to two adjacent photovoltaic modules 110, and the hinged photovoltaic modules 110 can rotate relative to each other.

[0103] like Figure 6 , Figure 7 and Figure 9 As shown, the photovoltaic module group 100 has a roller 180 on at least one side.

[0104] That is, rollers 180 are installed on one or both sides of the photovoltaic module group 100.

[0105] like Figure 7 As shown, roller 180 is adapted to roll into contact with the module cable 700 of the photovoltaic system.

[0106] The roller 180 can roll on the module cable 700 of the photovoltaic system. The rolling surface of the roller 180 can be a U-shaped or V-shaped groove that matches the shape of the module cable 700. Through the engagement of the groove on the rolling surface of the roller 180 with the module cable 700, the groove wall of the rolling surface of the roller 180 can provide lateral restraint for the roller 180, reducing the risk of the roller 180 falling off the module cable 700 in crosswinds or swaying, thus improving construction safety. At the same time, through the engagement of the groove on the rolling surface of the roller 180 with the module cable 700, the roller 180 can naturally roll along the axial direction of the module cable 700, improving the smoothness of the roller 180's operation.

[0107] Box 200 is a container or frame with a certain volume and structural strength.

[0108] like Figure 12 and Figure 15 As shown, the photovoltaic module group 100 is installed in the box 200.

[0109] That is, the photovoltaic module group 100 can be fixed, stored or loaded in the box 200.

[0110] The enclosure 200 can provide storage and protection for the photovoltaic module group 100, extending the life of the photovoltaic module group 100; at the same time, the modular packaging design can facilitate the transportation, installation and maintenance of the photovoltaic module group 100.

[0111] like Figure 13 and Figure 15 As shown, the housing 200 includes a base 210 and a side panel 220.

[0112] The base 210 is the main load-bearing and mounting structure at the bottom of the housing 200. The base 210 can be a frame or platform made of a material with a certain rigidity and strength.

[0113] like Figure 13 As shown, the base 210 is provided with anchor points 214.

[0114] Anchor point 214 is a component on base 210 used for anchoring rigging. For example... Figure 13 As shown, the base 210 is anchored to the cable 700 via anchor point 214. Figure 15 As shown, the base 210 is anchored to the tooling cable 300 via anchoring point 214.

[0115] like Figure 13 and Figure 15 As shown, the photovoltaic module group 100 is supported on the base 210.

[0116] That is, when the photovoltaic module group 100 is installed in the housing 200, the photovoltaic module group 100 can be supported by the base 210.

[0117] like Figure 13 As shown, the base 210 is adapted to be installed on the first side column 411 of the photovoltaic system.

[0118] After the housing 200 carrying the photovoltaic module group 100 is hoisted, the base 210 of the housing 200 can be installed on the first side column 411 of the photovoltaic system. For example, Figure 13 As shown, the base 210 can be installed on the top of the first side post 411. Alternatively, the base 210 can be installed at other parts of the first post. The anchoring points 214 provided on the base 210 make the base 210 suitable for installation on the first side post 411 to anchor the component cable 700.

[0119] Side panel 220 is the structure of the side of the box 200. For example... Figure 13 As shown, the side enclosure 220 includes box columns 221 and back beams 222.

[0120] The side panel 220 is detachably mounted on the base 210.

[0121] That is, the box column 221 of the side panel 220 can be detachably installed on the base 210, for example, by means of threaded connection or snap-fit ​​connection.

[0122] The side beams 222 are installed on multiple box columns 221. When the photovoltaic module group 100 is installed inside the box 200, the side beams can provide lateral support for the photovoltaic module group 100, reducing the risk of the photovoltaic module group 100 tipping over.

[0123] like Figure 13 and Figure 15 As shown, the side panel 220 is mounted on the base 210. At this time, the side panel 220, as part of the housing 200, is suitable for protecting and supporting the photovoltaic module assembly 100.

[0124] like Figure 1 , Figure 3 and Figure 10 As shown, the side panel 220 is detached from the base 210. At this time, the side panel 220 will not obstruct the movement or unfolding of the photovoltaic module assembly 100, which facilitates the installation or position adjustment of the photovoltaic module assembly 100.

[0125] The photovoltaic module group 100 forms a linked structure that can be folded and unfolded.

[0126] When the photovoltaic module group 100 is in a folded state, multiple photovoltaic modules 110 within the photovoltaic module group 100 are stacked sequentially.

[0127] The folded configuration makes the transportation and on-site storage of the photovoltaic module group 100 more convenient and safer.

[0128] When the photovoltaic module group 100 is in the unfolded state, the multiple photovoltaic modules 110 within the photovoltaic module group 100 are on the same plane or form a certain angle with each other.

[0129] In its unfolded state, multiple photovoltaic modules 110 can receive solar radiation and generate electricity with a larger surface area. For example... Figure 1 and Figure 3 As shown, when the photovoltaic module array 100 is deployed, it can present a double-slope structure. This double-slope structure allows for more or larger photovoltaic modules 110 to be accommodated on the same land area, thereby increasing the installed capacity per unit area. Simultaneously, the double-slope structure of the photovoltaic module array 100 allows it to capture sunlight from different directions, resulting in higher power generation efficiency during the morning and evening hours. Furthermore, since the morning and evening hours coincide with peak grid electricity prices, the double-slope structure of the photovoltaic module array 100 can generate higher revenue from electricity sales, helping to optimize the matching of the power generation curve with market prices and improving the economic return of the photovoltaic system. At the same time, the double-slope structure of the photovoltaic module array 100 can reduce dust accumulation on the surface of the photovoltaic modules 110 and can, to some extent, utilize rainwater for self-cleaning.

[0130] When the photovoltaic module group 100 changes from a folded state to an unfolded state, the hinge 120 and the roller 180 can help the adjacent photovoltaic modules 110 of the photovoltaic module group 100 rotate relative to each other, so that the adjacent photovoltaic modules 110 present a certain angle to each other or form a plane.

[0131] When the photovoltaic module group 100 changes from the unfolded state to the folded state, the hinge 120 and the roller 180 can help the adjacent photovoltaic modules 110 of the photovoltaic module group 100 rotate relative to each other, so that the photovoltaic modules 110 are stacked in sequence.

[0132] Construction workers can safely and efficiently complete the assembly and preliminary testing of the entire photovoltaic module group 100 in advance in a factory or a well-conditioned ground area. This can transform the "high-altitude bulk assembly" mode into a "ground prefabrication and overall hoisting" modular mode, thus eliminating the need to transport a large number of small photovoltaic modules 110 one by one to the high altitude for assembly and adjustment. This simplifies the cumbersome procedures of high-altitude construction of photovoltaic modules 110, while reducing construction safety risks and costs.

[0133] Before the photovoltaic module array 100 is hoisted to a high altitude, it can be pre-adjusted to a compact folded state and installed in the housing 200 for easy transportation and hoisting. When folded, the photovoltaic module array 100 occupies less space in the housing 200, increasing the single-load capacity, reducing transportation costs, and minimizing the risk of damage due to shaking or collisions during transport.

[0134] During the hoisting process, the pre-integrated housing 200 can provide a stable hoisting support for the photovoltaic module group 100, making the high-altitude hoisting operation safer and faster.

[0135] After hoisting into place, the base 210 of the housing 200 is installed on the first side column 411 of the photovoltaic system. This design simplifies the steps of high-altitude installation of the photovoltaic module group 100, enabling the photovoltaic module group 100 to be quickly and accurately positioned at high altitudes, thus accelerating the overall installation progress of the photovoltaic system.

[0136] The base 210 is equipped with anchoring points 214 suitable for anchoring the component cable 700, which can help the photovoltaic module 100 be quickly installed on the component cable 700 after being positioned at high altitude. After removing the side wall 220 of the housing 200, the rollers 180 cooperate with the component cable 700 to help move the entire large photovoltaic module 100, so that the photovoltaic module 100 can be smoothly unfolded to the preset working position. This can effectively reduce the interference of unstable factors such as high-altitude wind load on the positioning of the photovoltaic module 110, and help the photovoltaic module 110 achieve rapid and accurate attitude adjustment and positioning.

[0137] When the photovoltaic module group 100 is in the deployed state, it can receive solar radiation with a larger surface area, improve light energy absorption efficiency, thereby increasing power generation and reducing efficiency loss and internal losses caused by some photovoltaic modules 110 being blocked or at non-working angles, so that the photovoltaic system is in a highly reliable and profitable operating state.

[0138] In severe weather conditions such as typhoons and strong winds, the photovoltaic module group 100 can be switched from the unfolded state to the folded state. The folded photovoltaic module group 100 can reduce its load-bearing area, effectively reduce the load on it, thereby reducing the load on the module cable 700 and the supporting structure, reducing the risk of the photovoltaic system being damaged by strong winds, and also reducing the risk of the photovoltaic module 110 itself being cracked or damaged due to strong winds, thus improving the economy, reliability and durability of the photovoltaic system.

[0139] During heavy snow, the photovoltaic module 100 can be switched from the unfolded state to the folded state. The folded photovoltaic module 100 has a smaller surface area, which reduces the amount of snow that accumulates on the surface of the photovoltaic module 100 and can effectively reduce the risk of the photovoltaic module 110 being crushed by excessive snow.

[0140] The pre-installation process of photovoltaic devices is as follows:

[0141] The photovoltaic modules 110 are sequentially hinged, such that the photovoltaic module 110 at the end is hinged to the adjacent photovoltaic module 110 on one side, and the other photovoltaic modules 110 are respectively hinged to the two adjacent photovoltaic modules 110 on their opposite sides; a roller 180 is installed on at least one side of the photovoltaic module group 100; the photovoltaic module group 100 is sequentially stacked along the first direction X; the base body 211 and side wall 220 of the housing 200 are installed; the sequentially stacked photovoltaic module group 100 is installed in the housing 200.

[0142] The high-altitude installation process of photovoltaic devices is as follows:

[0143] The housing 200, on which the photovoltaic module group 100 is installed in sequence, is hoisted into the air; the base 210 of the housing is installed on the first side column 411 of the photovoltaic system; the side panel 220 is removed; the module cable 700 is anchored to the anchor point 214 of the base 210; the roller 180 is rolled in conjunction with the module cable 700; and the photovoltaic module group 100 is driven to unfold to the preset working position.

[0144] According to the photovoltaic device provided in the embodiments of this application, by sequentially hinged and stacked multiple photovoltaic modules 110 and installed in the housing 200, the pre-installation of multiple photovoltaic modules 110 can be initially completed in the ground area, transferring a large number of complex and tedious construction steps from high altitude to the ground, and enabling the photovoltaic module group 100 to quickly achieve high-altitude positioning and installation, reducing the steps and time of high-altitude operations, and improving the efficiency, convenience, safety and economy of construction. By setting rollers 180 on the photovoltaic module group 100, the photovoltaic module group 100 can be smoothly unfolded to the preset working position, helping the photovoltaic modules 110 to achieve rapid and accurate attitude adjustment and positioning. By switching multiple photovoltaic modules 110 between folded and unfolded states, the wind-exposed area can be significantly reduced in strong wind weather, effectively reducing the risk of wind load damage to the structure, thereby improving the economy, reliability and durability of the photovoltaic system.

[0145] In some embodiments, such as Figure 13 As shown, the base 210 includes a base body 211 and a support beam 212.

[0146] The base body 211 is the basic frame of the base 210 and can provide an installation base for other components.

[0147] like Figure 13 As shown, anchor point 214 is installed on base body 211.

[0148] That is, the base body 211 has anchoring points 214 for anchoring rigging.

[0149] Support beam 212 is a type of beam structure.

[0150] The leveling foot 213 is a height-adjustable mechanical component.

[0151] like Figure 13 As shown, the support beam 212 is installed on the base body 211 via the leveling foot 213.

[0152] That is, the connection between the support beam 212 and the base 210 does not have to be a fixed connection, but the height between the support beam 212 and the base 210 can be adjusted by adjusting the leveling foot 213.

[0153] like Figure 13 As shown, the support beam 212 is used to support the photovoltaic module group 100.

[0154] That is, the photovoltaic module group 100 is supported on the base 210 by the support beam 212, and the height between the photovoltaic module group 100 and the base 210 can be adjusted by adjusting the height of the leveling foot 213.

[0155] When the base 210 is installed to the first side column 411 and the photovoltaic module 100 is installed to the module cable 700, there is a certain designed height between the photovoltaic module 100 and the base 210. During the pre-installation of the photovoltaic device, the height of the leveling feet 213 can be adjusted to match the designed height between the photovoltaic module 100 and the base 210. This reduces the workload and difficulty of high-altitude operations for the photovoltaic module 100, improving construction efficiency, convenience, safety, and economy.

[0156] The pre-installation process of photovoltaic devices is as follows:

[0157] Install the base body 211 and side wall 220 of the housing 200; install the tooling cable 300 to the anchor point 214 and anchor it through the tooling anchor 310; install the sequentially stacked photovoltaic module group 100 on the tooling cable 300 and make the rollers 180 of the photovoltaic module group 100 supported on the tooling cable 300; install the support beam 212 on the base body 211 through the leveling foot 213 and adjust the height of the leveling foot 213 so that the support beam 212 fits the frame of the photovoltaic module 110; remove the tooling cable 300 so that the weight of the photovoltaic module group 100 is transferred to the support beam 212.

[0158] The high-altitude installation process of photovoltaic devices is as follows:

[0159] The housing 200, which contains the sequentially stacked photovoltaic module group 100, is hoisted as a whole, and the base 210 is installed on the first side column 411; the module cable 700 is anchored to the anchor point 214 of the base 210, so that the roller 180 cooperates with the module cable 700; the side wall 220, support beam 212 and leveling foot 213 of the housing 200 are removed, so that the weight of the photovoltaic module group 100 is transferred to the module cable 700; the photovoltaic module group 100 is driven to unfold to the preset working position.

[0160] Of course, the housing 200 can be used to store and transport the photovoltaic module assembly 100. The base 210 of the housing 200 does not need to be installed on the first side column, and the base 210 does not need to be anchored at the anchor point 214. The photovoltaic module assembly 100 can be directly hoisted after assembly without using the housing 200.

[0161] Hinge 120 is a mechanical connection component that allows two objects connected to it to rotate relative to each other.

[0162] In some embodiments, such as Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 13 As shown, within the photovoltaic module group 100, rollers 180 are installed on hinges 120 between adjacent photovoltaic modules 110.

[0163] Within the photovoltaic module group 100, the photovoltaic module 110 located at the end is hinged to the adjacent photovoltaic module 110 on one side via a hinge 120, and the photovoltaic module 110 located in the middle is hinged to the two adjacent photovoltaic modules 110 on opposite sides via hinges 120, allowing relative rotation between adjacent photovoltaic modules 110.

[0164] The roller 180 can be rotatably mounted on the hinge 120.

[0165] In this way, the hinge 120 connecting the adjacent photovoltaic modules 110 and the rollers 180 can both realize the relative rotation between the photovoltaic modules 110 and serve as the mounting base for the rollers 180. This integrated design is compact and saves installation space.

[0166] In some embodiments, such as Figure 5 and Figure 6 As shown, two adjacent photovoltaic modules 110 within the photovoltaic module group 100 are hinged together by a first hinge 160.

[0167] Within a photovoltaic module group 100, two adjacent photovoltaic modules 110 are connected by a first hinge 160 and achieve relative rotational movement through the first hinge structure 161 of the first hinge 160. The first hinge 160 helps the photovoltaic module group 100 to fold and unfold in the first direction X.

[0168] like Figure 3 As shown, when there are multiple photovoltaic module groups 100, the multiple photovoltaic module groups 100 are distributed along the second direction Y. The first direction X and the second direction Y may intersect.

[0169] That is, the photovoltaic module group 100 can contain multiple photovoltaic module groups 100 arranged side by side along the second direction Y.

[0170] like Figure 8 and Figure 9 As shown, two adjacent photovoltaic modules 110 within the photovoltaic module group 100 are hinged at their apex by a composite hinge 170, and the composite hinge 170 is also connected to the photovoltaic module 110 adjacent along the second direction Y.

[0171] Specifically, the composite hinge 170 is connected to the apex corners of four photovoltaic modules 110. Two of the four photovoltaic modules 110 belong to one photovoltaic module group 100, and the other two photovoltaic modules 110 belong to another photovoltaic module group 100. Two adjacent photovoltaic modules 110 within the same photovoltaic module group 100 are hinged together by the composite hinge 170, and relative rotational movement is achieved through the second hinge structure 171 of the composite hinge 170. Two photovoltaic modules 110 from two adjacent photovoltaic module groups 100 along the second direction Y are fixedly connected by the composite hinge 170.

[0172] In some embodiments, such as Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 9 As shown, all but the first hinge member 120 on the first side of the photovoltaic module group 100 are equipped with rollers 180.

[0173] The first side of the photovoltaic module group 100 is the side of the photovoltaic module group 100 along the third direction Z. When the photovoltaic module group 100 is installed on the module cable 700, the third direction Z can be the up and down direction, and the first side of the photovoltaic module group 100 can be the bottom side of the photovoltaic module group 100.

[0174] like Figure 4 As shown, the first hinge 120 on the first side of the photovoltaic module group 100 may not be equipped with a roller 180. The first side hinge 151 is the first hinge 120 on the first side of the photovoltaic module group 100. The first side hinge 151 is connected to the first photovoltaic module 110 on the first side of the photovoltaic module group 100, and the first side hinge 151 is hinged to the module cable 700 through the module cable bracket 720. The first photovoltaic module 110 on the first side of the photovoltaic module group 100 and the module cable 700 achieve relative rotational movement through the first side hinge structure 151a of the first side hinge 151.

[0175] The module cable support 720 may include a first fixing plate 721 and a first limiting plate 722. The first fixing plate 721 and the first limiting plate 722 may be fixedly connected, such as by welding or threaded connection. The first fixing plate 721 may include two detachably connected first sub-plates, which together form a through hole for the module cable 700 to pass through. When the photovoltaic module assembly 100 is hoisted onto the module cable 700 and is in a folded state, the first limiting plate 722 will tightly engage with the frame of the first photovoltaic module 110 on the first side inside the photovoltaic module assembly 100. The first limiting plate 722 can reduce the risk of the photovoltaic module assembly 100 overturning along the first direction X, helping to ensure the structural safety and stability of the photovoltaic module assembly 100 in the folded state.

[0176] When the first photovoltaic module 110 on the first side of the photovoltaic module assembly 100 is mounted on the module cable 700, the photovoltaic module 110 and the module cable 700 can rotate relative to each other through the first side hinge 151, but there is no relative movement between them. Therefore, the roller 180 does not need to be installed at the first side hinge 151.

[0177] like Figure 4 , Figure 6 , Figure 7 and Figure 9 As shown, all but the first hinge member 120 on the first side of the photovoltaic module group 100 are equipped with rollers 180.

[0178] That is, the first hinge 160, the composite hinge 170 and the second side hinge 153 on the first side of the photovoltaic module group 100 are all equipped with rollers 180.

[0179] The second side hinge 153 is the last hinge 120 on the first side within the photovoltaic module group 100, and the second side hinge 153 is connected to the last photovoltaic module 110 within the photovoltaic module group 100.

[0180] The photovoltaic module group 100 is fixedly connected to the module cable 700 at the first side hinge 151. Multiple photovoltaic modules 110 can be rolled on the module cable 700 with the first side hinge 151 as the reference point. They can be unfolded by the first hinge 160, the composite hinge 170 and the rollers 180 of the second side hinge 153 on the first side.

[0181] When multiple photovoltaic module groups 100 are deployed, the layout of the rollers 180 can distribute the weight of the multiple photovoltaic modules 110 more evenly, reduce the structural deformation of the photovoltaic module groups 100, improve the stability of the photovoltaic module groups 100, and at the same time, it can position the deployment movement of the photovoltaic modules 110, reducing the risk of improper installation of the photovoltaic modules 110.

[0182] In some embodiments, such as Figure 7 As shown, the hinge 120, on which at least part of the roller 180 is mounted, is provided with a limiting bracket 190, and the limiting bracket 190 is provided on both sides of the corresponding roller 180.

[0183] That is, a portion of the hinge 120 with rollers 180 is provided with a limiting bracket 190, or all the hinge 120 with rollers 180 are provided with a limiting bracket 190.

[0184] In other words, a limiting bracket 190 is provided for the first hinge 160, the composite hinge 170 and the second side hinge 153 on the first side of a portion of the photovoltaic module group 100, or a limiting bracket 190 is provided for the first hinge 160, the composite hinge 170 and the second side hinge 153 on the first side of all the photovoltaic module groups 100.

[0185] "Corresponding roller 180" refers to the roller 180 on the hinge 120 with limit bracket 190, and limit bracket 190 is provided on both sides of the roller 180.

[0186] like Figure 7 As shown, the limiting bracket 190 is adapted to be located on both sides of the component cable 700 and spaced apart from the component cable 700.

[0187] When the photovoltaic module 110 is installed on the module cable 700, the roller 180 cooperates with the module cable 700, and the limiting brackets 190 on both sides of the roller 180 are located on both sides of the module cable 700, with the module cable 700 and the roller 180 located between the two limiting brackets 190. The limiting brackets 190 do not need to directly contact the module cable 700, and a certain gap can be maintained between the limiting brackets 190 and the module cable 700. When the roller 180 rolls on the module cable 700, there can be no friction or wear between the limiting brackets 190 and the module cable 700.

[0188] When the roller 180 has a tendency to move to the side away from the component cable 700, the limiting bracket 190 can limit the deviation movement of the roller 180 and reduce the risk of the roller 180 detaching from the component cable 700 during movement.

[0189] In some embodiments, such as Figure 16 and Figure 17 As shown, the photovoltaic device includes an upper hinge 130 and a lower hinge 140.

[0190] The upper hinge 130 is a mechanical connection component that allows two objects connected to it to rotate relative to each other.

[0191] The lower hinge 140 is a mechanical connection component that allows two objects connected to it to rotate relative to each other. For example... Figure 6 As shown, the lower hinge 140 can enable relative rotation of two objects through a first hinge structure. The first hinge structure can be a pin or a pivot, etc.

[0192] like Figure 16 and Figure 17 As shown, two adjacent photovoltaic modules 110 along the first direction X are hinged by one of the upper hinge 130 and the lower hinge 140, and the upper hinge 130 and the lower hinge 140 are staggered along the first direction X.

[0193] In a series of sequentially arranged photovoltaic modules 110, except for the photovoltaic modules 110 located at the ends, the photovoltaic modules 110 located in the middle are connected to an upper hinge 130 on one side and a lower hinge 140 on the other side. When the number of photovoltaic modules 110 is greater than three, the upper hinge 130 is connected to the same side of the multiple photovoltaic modules 110 located in the middle, and the lower hinge 140 is connected to the same side of the multiple photovoltaic modules 110 located in the middle. Two adjacent photovoltaic modules 110 hinged by the upper hinge 130 or the lower hinge 140 can rotate relative to each other.

[0194] like Figures 16-18 As shown, the lower hinge 140 is adapted to be installed on the module cable 700. When the lower hinge 140 is installed on the module cable 700 of the photovoltaic system, in the vertical direction, the hinge axis 141 of the lower hinge is located between the photovoltaic module 110 and the module cable 700.

[0195] like Figure 17 and Figure 16 As shown, the photovoltaic module group 100 has a folded state and an unfolded state.

[0196] like Figure 17 As shown, in the folded state, multiple photovoltaic modules 110 are stacked sequentially along the first direction X.

[0197] In the folded state, multiple photovoltaic modules 110 can be stacked sequentially along the first direction X, where the first direction X can be the thickness direction of the photovoltaic modules 110 when stacked.

[0198] like Figure 17 As shown, in the folded state, the upper hinge 130 is located above the photovoltaic module 110, and the lower hinge 140 is located below the photovoltaic module 110.

[0199] That is, when multiple photovoltaic modules 110 are stacked in sequence, two adjacent photovoltaic modules 110 are hinged on the upper side by an upper hinge 130, or two adjacent photovoltaic modules 110 are hinged on the lower side by a lower hinge 140.

[0200] like Figure 17 As shown, in the unfolded state, multiple photovoltaic modules 110 are sequentially hinged along the first direction X.

[0201] In the unfolded state, multiple photovoltaic modules 110 are hinged along the first direction X by an upper hinge 130 or a lower hinge 140, and the multiple photovoltaic modules 110 can form a planar state.

[0202] like Figure 16 As shown, in the unfolded state, the height of the hinge axis 141 of the lower hinge is lower than the height of the hinge axis 131 of the upper hinge.

[0203] In other words, the rotation center line of the lower hinge 140 is lower than the rotation center line of the upper hinge 130 in the vertical direction. When the lower hinge 140 is installed on the module cable 700 of the photovoltaic system, in the vertical direction, the hinge axis 141 of the lower hinge is located between the hinge axis 131 of the upper hinge and the module cable 700.

[0204] When the photovoltaic module 110 transitions from an unfolded state to a folded state, the photovoltaic module 110 tends to rotate relative to the hinge axis 141 of the lower hinge member. Since the hinge axis 141 of the lower hinge member is located below the hinge axis 131 of the upper hinge member, for Figure 16 The photovoltaic module 110 on the left side of the middle section, which is subjected to a counterclockwise torque as a whole, tends to rotate counterclockwise around the lower hinge 140; for Figure 16 The photovoltaic module 110 on the right side of the center bears a clockwise torque and tends to rotate clockwise around the lower hinge 140. Therefore, the above rotational tendency together causes the upper hinge 130 to have an upward motion component when folding, reducing the risk of spatial interference between the upper hinge 130 and other components of the photovoltaic system, and helping the folding process of the photovoltaic module 110 to proceed smoothly.

[0205] In this way, the photovoltaic module 110 can be unfolded from a double-slope state to a planar state, which improves the uniformity of irradiance intensity on the surface of the photovoltaic module 110, thereby improving the power generation efficiency of the photovoltaic system and reducing the complexity and cost of electrical wiring.

[0206] In addition, the photovoltaic module 110 can be smoothly folded and retracted before strong winds arrive or when it needs to be disassembled, which helps to improve the wind resistance and safety performance of the photovoltaic system and the ease of disassembly.

[0207] At the same time, this design can also reduce the risk of structural damage caused by collisions or impacts between the upper hinge 130 and the photovoltaic module 110 and other components of the photovoltaic system, reduce the failure rate of the photovoltaic system, and improve the reliability and operating economy of the photovoltaic system during long-term operation.

[0208] According to the photovoltaic device provided in the embodiments of this application, by setting the height of the hinge axis 141 of the lower hinge member to be lower than the height of the hinge axis 131 of the upper hinge member, the torque borne by the photovoltaic module 110 during the folding process drives the upper hinge member 130 to move upward, reducing the risk of spatial interference between the upper hinge member 130 and other components of the photovoltaic system. This helps to ensure the smooth folding action of the photovoltaic module 110 in the unfolded state, improves the power generation efficiency, electrical wiring simplicity and economy, wind resistance safety and disassembly convenience of the photovoltaic system, reduces the risk of structural damage caused by collisions or impacts between components, thereby reducing the failure rate of the photovoltaic system and enhancing the reliability and operating economy of the photovoltaic system during long-term operation.

[0209] In some embodiments, such as Figure 18 As shown, the lower hinge 140 includes a hinge base 142 and an assembly connector 143.

[0210] The hinge base 142 is the base in the lower hinge 140 used for mounting other components.

[0211] like Figure 18 As shown, the hinge seat 142 is used for mounting the module cable 700 of the photovoltaic system.

[0212] The hinge 142 can connect the entire lower hinge 140 to the module cable 700 of the photovoltaic system, so that the photovoltaic module 110 connected to the lower hinge 140 can be installed on the module cable 700.

[0213] The component connector 143 is a part in the lower hinge 140 that is directly connected to the photovoltaic module 110.

[0214] like Figure 18 As shown, the component connector 143 includes a pair of connectors disposed opposite each other along the first direction X.

[0215] In other words, a lower hinge 140 includes two component connectors 143, which are spaced apart along a first direction X.

[0216] like Figure 18 As shown, component connector 143 is hinged to hinge seat 142.

[0217] The component connector 143 can be hinged to the hinge seat 142 via the first hinge structure.

[0218] like Figure 18 As shown, the component connector 143 has a connection structure 1431 for connecting to the photovoltaic module 110.

[0219] The connection structure 1431 can be a mounting hole or a slot, etc. The component connector 143 is connected to the photovoltaic module 110 through the connection structure 1431.

[0220] In this way, the lower hinge 140 can connect two photovoltaic modules 110 respectively through two spaced component connectors 143, and when the two photovoltaic modules 110 change state, they rotate relative to the lower hinge 140 along hinge axes with different spatial positions, so that the two photovoltaic modules 110 move along different spatial trajectories when changing state, which effectively reduces the risk of interference or mechanical collision between multiple photovoltaic modules 110, and helps to ensure the smoothness and reliability of state change operation.

[0221] In some embodiments, such as Figure 17As shown, in the folded state, two photovoltaic modules 110 connected to the same lower hinge 140 are located between the two hinge axes of the lower hinge 140.

[0222] In other words, after multiple photovoltaic modules 110 are folded, for any one lower hinge member 140, the two photovoltaic modules 110 that are hinged to it are located between the two hinge axes of that lower hinge member 140 in space.

[0223] When switching from the unfolded state to the folded state, the pair of component connectors 143 of the lower hinge 140 pivot in a direction that brings them closer to each other.

[0224] In other words, when the photovoltaic module assembly 100 begins to transition from an unfolded state to a folded state, the two module connectors 143 connected to the same hinge base 142 will rotate around their respective hinge axes. This rotational movement reduces the angle between the two module connectors 143, and the spatial distance between the two photovoltaic modules 110 also decreases. During this folding process, the trajectories of adjacent photovoltaic modules 110 can be designed to be interference-free and maintain an appropriate distance from each other, reducing the risk of the photovoltaic modules 110 swaying, jamming, or accidental interference during the folding process.

[0225] In some embodiments, such as Figure 16 As shown, in the unfolded state, the hinge axis of the component connector 143 and the hinge seat 142 is located below the connection structure 1431.

[0226] In other words, when the photovoltaic module assembly 100 is deployed, the hinge axis of the module connector 143 and the hinge seat 142 is lower than that of the photovoltaic module 110 connected to the connection structure 1431.

[0227] When the photovoltaic module 100 changes from the unfolded state to the folded state, the module connector 143 is subjected to a lateral force applied by the photovoltaic module 110 at the connection structure 1431. The force-bearing position of the connection structure 1431 is higher than the hinge axis between the module connector 143 and the hinge seat 142. Therefore, the torque borne by the module connector 143 helps it to achieve the folding movement, so that the two module connectors 143 connected to the same hinge seat 142 have a tendency to pivot in the direction of moving closer to each other.

[0228] In some embodiments, such as Figure 16 As shown, in the unfolded state, the distance between the two connecting structures 1431 of the lower hinge 140 is less than the distance between the two hinge axes, and the connecting structure 1431 is located above the hinge axis.

[0229] In other words, the distance between the connection structures 1431 of the two component connectors 143 of the lower hinge 140 is less than the distance between the hinge axes of the two component connectors 143 and the hinge base 142. At the same time, the hinge axes of the component connectors 143 and the hinge base 142 are lower than the photovoltaic module 110 connected to the connection structure 1431.

[0230] This arrangement ensures that the distance between two photovoltaic modules 110 connected to the same lower hinge 140 is small when they are unfolded. Simultaneously, this arrangement reduces the risk of interference between adjacent photovoltaic modules 110 when the photovoltaic module group 100 switches between unfolded and folded states.

[0231] This application also provides a photovoltaic system.

[0232] A photovoltaic system is an engineering system that can efficiently and stably convert solar energy into usable electrical energy.

[0233] like Figure 1 , Figure 3 , Figure 10 and Figure 12 As shown, the photovoltaic system includes a first side support structure 410, a second side support structure 420, a module cable 700, and at least one photovoltaic module group 100 of the aforementioned photovoltaic device.

[0234] The first side support structure 410 is a support unit set at one end of the photovoltaic system, and is the boundary support at one end of the module cable 700.

[0235] like Figure 3 As shown, the first side support structure 410 includes a first side column 411 and a base 210.

[0236] The first side column 411 is a structural column installed on the foundation or base of the first side support structure 410.

[0237] The base 210 is installed on the first side column 411.

[0238] That is, the base 210 of the box 200 that holds the photovoltaic module group 100 can be directly installed on the first side column 411.

[0239] like Figure 13 As shown, the base 210 can be installed on the top of the first side column 411, serving as the first side beam of the first side support structure 410. Alternatively, the base 210 can be installed at other parts of the first column.

[0240] like Figure 13 As shown, component cable 700 is anchored to anchor point 214 of base 210.

[0241] That is, the component cable 700 can be directly anchored to the base 210 of the box 200 that holds the photovoltaic module group 100.

[0242] Of course, the housing 200 can be used to store and transport the photovoltaic module assembly 100. The base 210 of the housing 200 does not need to be installed on the first side column, and the base 210 does not need to be anchored at the anchor point 214. The photovoltaic module assembly 100 can be directly hoisted after assembly without using the housing 200.

[0243] The second side support structure 420 is a support unit set at the other end of the photovoltaic system, which is the boundary support at the other end of the module cable 700.

[0244] Component Cable 700 is a high-strength flexible or semi-flexible load-bearing component. Component Cable 700 can be made of steel strand or steel wire rope, etc.

[0245] like Figure 1 and Figure 12 As shown, component cable 700 is connected between the first side support structure 410 and the second side support structure 420.

[0246] When the component cable 700 is put into use, the component cable 700 can be anchored between the first side support structure 410 and the second side support structure 420.

[0247] like Figure 7 As shown, the rollers 180 of the photovoltaic device are supported on the module cable 700.

[0248] That is, the photovoltaic module 100 can be supported on the module cable 700 by the roller 180, so that the weight of the entire photovoltaic module 100 is borne by the module cable 700.

[0249] The photovoltaic module group 100 of the photovoltaic device is adapted to switch between an unfolded state and a folded state.

[0250] When the photovoltaic module group 100 is in the unfolded state, the multiple photovoltaic modules 110 within the photovoltaic module group 100 are on the same plane or form a certain angle with each other.

[0251] In the unfolded state, multiple photovoltaic modules 110 can receive solar radiation and generate electricity with a larger surface area.

[0252] like Figure 10 and Figure 15 As shown, when the photovoltaic module group 100 is in a folded state, multiple photovoltaic modules 110 within the photovoltaic module group 100 are stacked sequentially.

[0253] The folded configuration makes the transportation and on-site storage of the photovoltaic module group 100 more convenient and safer.

[0254] According to the photovoltaic system provided in the embodiments of this application, by adopting the above-mentioned photovoltaic device, multiple photovoltaic modules 110 can be sequentially hinged and stacked and installed in the housing 200. The pre-installation of multiple photovoltaic modules 110 can be initially completed in the ground area, transferring a large number of complex and tedious construction steps from high altitude to the ground. It also enables the photovoltaic module group 100 to quickly achieve high-altitude positioning and installation, reducing the steps and time of high-altitude operations, and improving the efficiency, convenience, safety and economy of construction. By setting rollers 180 on the photovoltaic module group 100, the photovoltaic module group 100 can be smoothly unfolded to the preset working position, helping the photovoltaic modules 110 to achieve rapid and accurate attitude adjustment and positioning. By switching multiple photovoltaic modules 110 between folded and unfolded states, the wind-exposed area can be significantly reduced in strong wind weather, effectively reducing the risk of wind load damage to the structure, thereby improving the economy, reliability and durability of the photovoltaic system.

[0255] In some embodiments, such as Figure 1 , Figure 2 and Figure 12 As shown, the photovoltaic system includes a central support structure 430.

[0256] The central support structure 430 is a support unit located in the middle of the photovoltaic system.

[0257] like Figure 2 As shown, component cable 700 is installed on the central support structure 430 via clamp 434.

[0258] The central support structure 430 can be fitted with a support plate 433, which can be fixedly connected to the central support structure 430 by welding or threaded connection. The top of the support plate 433 has an arc-shaped section, the shape of which matches the shape of the lower end of the component cable 700. When the component cable 700 is installed on the central support structure 430, a clamp 434 is used to wrap around the upper end of the component cable 700 and the support plate 433, so that the inner wall of the clamp 434 fits against the outer surface of the upper end of the component cable 700 and the outer contour of the support plate 433. The clamp 434 and the support plate 433 are fastened together by fasteners.

[0259] The inner contour of the clamp 434 fits tightly against the outer surface of the module cable 700, and a contour that matches the shape of the upper end of the module cable 700 can be formed on the outside of the clamp 434, so that the roller 180 can roll smoothly over the area of ​​the clamp 434, reducing the vibration or jamming of the roller 180 and helping the photovoltaic module 100 to achieve continuous and smooth state changes.

[0260] Furthermore, the width of the rolling surface of the roller 180 can be designed to be greater than the diameter of the module cable 700. This allows the rolling surface of the roller 180 to stably engage with the clamp 434 when it moves above it, enabling it to pass smoothly and easily through the clamp 434 area and reducing the risk of the roller 180 falling onto the clamp 434. Simultaneously, the wide rolling surface provides a safety margin for lateral displacement of the roller 180, ensuring that it remains above the module cable 700 within the permissible range of sway, thus enhancing the stability of the photovoltaic module 100 during state transitions in harsh environments.

[0261] In some embodiments, such as Figure 11 As shown, the photovoltaic system may also include a drive mechanism 800.

[0262] The drive mechanism 800 is a mechanism that provides mechanical power for the state changes of the photovoltaic module group 100.

[0263] The drive mechanism 800 is installed in at least one of the first side support structure 410 and the second side support structure 420.

[0264] In other words, the drive mechanism 800 can be installed in at least one of the following ways:

[0265] Firstly, the drive mechanism 800 is installed on the first side support structure 410.

[0266] Secondly, the drive mechanism 800 is installed on the second side support structure 420.

[0267] Third, the drive mechanism 800 is installed on the first side support structure 410 and the second side support structure 420.

[0268] The drive mechanism 800 is used to drive the photovoltaic module group 100 to switch between the unfolded state and the folded state.

[0269] In other words, the drive mechanism 800 can provide power to the photovoltaic device, enabling the photovoltaic module group 100 to change from an unfolded state to a folded state, or enabling the photovoltaic module group 100 to change from a folded state to an unfolded state.

[0270] In some embodiments, such as Figure 11 and Figure 14 As shown, the drive mechanism 800 may include a power source 830, a first transmission wheel 810, a second transmission wheel 820, a transmission cable 840, a traction head 850, and a traction bracket 860.

[0271] The power source 830 is the energy source for the drive mechanism 800. The power source 830 can be a servo motor, a stepper motor, or a common three-phase motor, etc.

[0272] The power source 830 is installed on the first side support structure 410.

[0273] like Figure 11 As shown, the power source 830 can be fixedly installed on the base 210. Of course, the power source 830 can also be fixedly installed on other structures of the first side support structure 410.

[0274] The first transmission wheel 810 is a pulley used to transmit power.

[0275] like Figure 11 As shown, the first transmission wheel 810 is electrically coupled to the power source 830.

[0276] That is, the first transmission wheel 810 is the driving wheel and can be directly driven by the power source 830.

[0277] The second drive wheel 820 is a pulley used to transmit power.

[0278] The second drive wheel 820 is mounted on the second side support structure 420.

[0279] like Figure 14 As shown, the second transmission wheel 820 is mounted on the second side beam 422 of the second side support structure 420. Of course, the second transmission wheel 820 can also be mounted on other structures of the second side support structure 420. The second transmission wheel 820 can be a driven wheel and may not be directly driven by the power source 830.

[0280] The transmission cable 840 is a flexible traction element with high strength. The transmission cable 840 can be a steel wire rope, a timing belt, or a chain, etc.

[0281] like Figure 11 As shown, the transmission cable 840 is wound around the first transmission wheel 810 and the second transmission wheel 820.

[0282] That is, the transmission cable 840 forms a closed loop between the first transmission wheel 810 and the second transmission wheel 820. When the power source 830 drives the first transmission wheel 810 to rotate, the transmission cable 840 is driven to perform a cyclical motion through friction or meshing.

[0283] The traction head 850 is a connector with a certain strength.

[0284] like Figure 11 As shown, the traction head 850 may include a second fixing plate 851 and a second limiting plate 852. The second fixing plate 851 and the second limiting plate 852 may be fixedly connected, such as by welding or threaded connection. The second fixing plate 851 may include two detachably connected second sub-plates, which together form a through hole for the transmission cable 840 to pass through.

[0285] like Figure 11 As shown, the traction head 850 is mounted on the transmission cable 840.

[0286] The traction head 850 can be mounted on the transmission cable 840 via the second fixing plate 851.

[0287] The traction bracket 860 is a connector with a certain strength.

[0288] like Figure 11 As shown, the traction bracket 860 is installed on the photovoltaic module 110 near the second side support structure 420.

[0289] That is, the traction bracket 860 is installed on the frame of the photovoltaic module 110 in the photovoltaic module group 100 near the second side support structure 420.

[0290] like Figure 11 As shown, the traction bracket 860 is hinged to the traction head 850.

[0291] The traction bracket 860 is hinged to the second limiting plate 852 of the traction head 850.

[0292] One end of the traction bracket 860 is fixed to the photovoltaic module group 100, and the other end of the traction bracket 860 is hinged to the traction head 850. The traction bracket 860 can effectively transmit the pulling force of the traction head 850 to the photovoltaic module group 100 and push or pull the photovoltaic module group 100 as a whole.

[0293] The working process of drive mechanism 800 is as follows:

[0294] The power source 830 drives the first transmission wheel 810 to rotate; the rotation of the first transmission wheel 810 drives the transmission cable 840, which is wound between the first transmission wheel 810 and the second transmission wheel 820, to circulate; the transmission cable 840 drives the traction head 850 to move in a straight line; the traction head 850 drives the traction bracket 860 to move; the traction bracket 860 drives the photovoltaic module 110 near the second side support structure 420 to move, and the photovoltaic module 110 drives the other photovoltaic modules 110 to move, so that the photovoltaic module group 100 switches between the unfolded state and the folded state.

[0295] This application also provides a construction method for a photovoltaic system.

[0296] like Figure 19 As shown, the construction method of the photovoltaic system includes steps 910, 920 and 930.

[0297] Step 910: Lift the photovoltaic device to the first side column 411 and install the base 210 on the first side column 411.

[0298] In this embodiment, the photovoltaic module group 100 is assembled and sequentially stacked and installed in the housing 200. The housing 200 with the photovoltaic module group 100 installed is lifted to the first side support structure 410, and the base 210 of the housing 200 is installed on the first side column 411.

[0299] Step 920: Tensioning component cable 700, disassembling side wall 220.

[0300] In this embodiment, the component cable 700 is anchored to the base 210 and the second side support structure 420, and the component cable 700 is installed on the middle support structure 430 through the clamp 434, so that the roller 180 of the photovoltaic module group 100 cooperates with the component cable 700; the side wall 220, leveling foot 213 and support beam 212 of the box 200 are removed so that the gravity of the photovoltaic module group 100 is transferred to the component cable 700.

[0301] Step 930: Unfold the photovoltaic module group 100 along the module cable 700.

[0302] In this embodiment, when the photovoltaic system includes a drive mechanism 800, the power source 830 is controlled to operate, causing the power source 830 to drive the first transmission wheel 810 to rotate. The rotation of the first transmission wheel 810 causes the transmission cable 840, which is wound between the first transmission wheel 810 and the second transmission wheel 820, to circulate. The transmission cable 840 causes the traction head 850 to move linearly. The traction head 850 causes the traction bracket 860 to move. The traction bracket 860 causes the photovoltaic module 110 near the second side support structure 420 to move, and the photovoltaic module 110 causes other photovoltaic modules 110 to move, so that the photovoltaic module group 100 is unfolded from a folded state to an unfolded state. Alternatively, the photovoltaic module 110 near the second side support structure 420 can be manually driven to move, and the photovoltaic module 110 causes other photovoltaic modules 110 to move, so that the photovoltaic module group 100 is unfolded from a folded state to an unfolded state.

[0303] According to the construction method of the photovoltaic system provided in the embodiments of this application, by adopting the above-mentioned photovoltaic system, multiple photovoltaic modules 110 can be sequentially hinged and stacked and installed in the housing 200. The pre-installation of multiple photovoltaic modules 110 can be initially completed in the ground area, transferring a large number of complex and tedious construction steps from high altitude to the ground. It also enables the photovoltaic module group 100 to quickly achieve high-altitude positioning and installation, reducing the steps and time of high-altitude operations, and improving the efficiency, convenience, safety and economy of construction. By setting rollers 180 on the photovoltaic module group 100, the photovoltaic module group 100 can be smoothly unfolded to the preset working position, helping the photovoltaic modules 110 to achieve rapid and accurate attitude adjustment and positioning. By switching multiple photovoltaic modules 110 between folded and unfolded states, the wind-exposed area can be significantly reduced in strong wind weather, effectively reducing the risk of wind load damage to the structure, thereby improving the economy, reliability and durability of the photovoltaic system.

[0304] The following is combined Figures 1-19 This application describes a photovoltaic device according to an embodiment.

[0305] The photovoltaic device includes a photovoltaic module group 100, a housing 200, an upper hinge 130, and a lower hinge 140.

[0306] The photovoltaic module assembly 100 includes at least one set of photovoltaic modules 110 stacked sequentially along a first direction. The photovoltaic modules 110 located at the ends are hinged to adjacent photovoltaic modules 110 on one side, while the other photovoltaic modules 110 are hinged to two adjacent photovoltaic modules 110 on opposite sides. The photovoltaic module assembly 100 has a roller 180 on at least one side, adapted to roll with the module cable 700 of the photovoltaic system. The photovoltaic module assembly 100 is mounted in a housing 200. Within the photovoltaic module assembly 100, the roller 180 is mounted on hinge members 120 between adjacent photovoltaic modules 110. Except for the first hinge member 120, all hinge members 120 on the first side of the photovoltaic module assembly 100 are equipped with rollers 180. The hinge 120, at least partially fitted with rollers 180, is provided with limiting brackets 190, and limiting brackets 190 are provided on both sides of the corresponding rollers 180. The limiting brackets 190 are adapted to be located on both sides of the module cable 700 and spaced apart from the module cable 700. Two adjacent photovoltaic modules 110 within the photovoltaic module group 100 are hinged by a first hinge 160. When there are multiple photovoltaic module groups 100, the multiple photovoltaic module groups 100 are distributed along a second direction, and two adjacent photovoltaic modules 110 within the photovoltaic module group 100 are hinged at the apex corner by a composite hinge 170, and the composite hinge 170 is also connected to the photovoltaic module 110 adjacent along the second direction.

[0307] The housing 200 includes a base 210 and side panels 220. The base 210 has anchor points 214, on which the photovoltaic module assembly 100 is supported. The base 210 is adapted to be installed on the first side post 411 of the photovoltaic system. The base 210 includes a base body 211 and a support beam 212. The anchor points 214 are installed on the base body 211. The support beam 212 is installed on the base body 211 via leveling feet 213 and is used to support the photovoltaic module assembly 100. The side panels 220 are detachably installed on the base 210.

[0308] Two adjacent photovoltaic modules 110 along the first direction are hinged by one of the upper hinge 130 and the lower hinge 140, and the upper hinge 130 and the lower hinge 140 are staggered along the first direction.

[0309] The lower hinge 140 includes a hinge base 142 and a module connector 143. The hinge base 142 is used for mounting the module cable 700 of the photovoltaic system. The module connector 143 includes a pair disposed opposite each other along a first direction, the module connector 143 being hinged to the hinge base 142, and the module connector 143 having a connection structure 1431 for connecting to the photovoltaic module 110.

[0310] The photovoltaic module group 100 has a folded state and an unfolded state.

[0311] In the folded state, multiple photovoltaic modules 110 are stacked sequentially along a first direction, with the upper hinge 130 located above the photovoltaic modules 110 and the lower hinge 140 located below the photovoltaic modules 110. In the folded state, two photovoltaic modules 110 connected to the same lower hinge 140 are located between the two hinge axes of the lower hinge 140.

[0312] In the deployed state, multiple photovoltaic modules 110 are sequentially hinged along a first direction, and the height of the hinge axis 141 of the lower hinge member is lower than the height of the hinge axis 131 of the upper hinge member. In the deployed state, the hinge axis of the module connector 143 and the hinge seat 142 is located below the connecting structure 1431. In the deployed state, the distance between the two connecting structures 1431 of the lower hinge member 140 is less than the distance between the two hinge axes, and the connecting structure 1431 is located above the hinge axis.

[0313] When switching from the unfolded state to the folded state, the pair of component connectors 143 of the lower hinge 140 pivot in a direction that brings them closer to each other.

[0314] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0315] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0316] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0317] In the description of this application, "multiple" means two or more.

[0318] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0319] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0320] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0321] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A photovoltaic device, characterized in that, include: At least one photovoltaic module group (100) is provided, wherein a plurality of photovoltaic modules (110) of the photovoltaic module group (100) are stacked sequentially along a first direction, wherein the photovoltaic module (110) located at the end is hinged to the adjacent photovoltaic module (110) on one side, and the other photovoltaic modules (110) are respectively hinged to the two adjacent photovoltaic modules (110) on opposite sides. The photovoltaic module group (100) is provided with a roller (180) on at least one side, and the roller (180) is adapted to roll with the module cable (700) of the photovoltaic system. A housing (200) is provided, on which the photovoltaic module group (100) is installed. The housing (200) includes a base (210) and a side wall (220). The base (210) is provided with anchor points (214). The photovoltaic module group (100) is supported on the base (210). The base (210) is adapted to be installed on the first side column (411) of the photovoltaic system. The anchor points (214) are used to anchor the module cable (700) when the base (210) is installed on the first side column (411). The side wall (220) is detachably installed on the base (210). An upper hinge (130) and a lower hinge (140) are provided, wherein two adjacent photovoltaic modules (110) along the first direction are hinged by one of the upper hinge (130) and the lower hinge (140), and the upper hinge (130) and the lower hinge (140) are staggered along the first direction; wherein, The photovoltaic module group (100) has a folded state and an unfolded state. In the folded state, the plurality of photovoltaic modules (110) are stacked sequentially along a first direction, and the upper hinge (130) is located above the photovoltaic module (110), and the lower hinge (140) is located below the photovoltaic module (110). In the unfolded state, the plurality of photovoltaic modules (110) are hinged sequentially along the first direction, and the height of the hinge axis (141) of the lower hinge is lower than the height of the hinge axis (131) of the upper hinge.

2. The photovoltaic device according to claim 1, characterized in that, In the folded state, the two photovoltaic modules (110) connected to the same lower hinge (140) are located between the two hinge axes of the lower hinge (140); When switching from the unfolded state to the folded state, a pair of component connectors (143) of the lower hinge (140) pivot in a direction toward each other.

3. The photovoltaic device according to claim 1, characterized in that, The lower hinge member (140) includes: Hinged mount (142) for mounting the module cable (700) of the photovoltaic system. A pair of component connectors (143) arranged opposite each other along a first direction are hinged to the hinge seat (142) and have a connection structure (1431) for connecting to the photovoltaic module (110).

4. The photovoltaic device according to claim 3, characterized in that, In the unfolded state, the hinge axis of the component connector (143) and the hinge seat (142) is located below the connection structure (1431); And / or, In the unfolded state, the distance between the two connecting structures (1431) of the lower hinge (140) is less than the distance between the two hinge axes, and the connecting structure (1431) is located above the hinge axis.

5. The photovoltaic device according to any one of claims 1-4, characterized in that, The base (210) includes: The base body (211) is provided with anchor points (214) installed on the base body (211). A support beam (212) is installed on the base body (211) via a leveling foot (213) to support the photovoltaic module group (100).

6. The photovoltaic device according to claim 2, characterized in that, Within the photovoltaic module group (100), the roller (180) is mounted on the hinge (120) between adjacent photovoltaic modules (110).

7. The photovoltaic device according to claim 6, characterized in that, Except for the first one, all the hinges (120) on the first side of the photovoltaic module group (100) are equipped with rollers (180).

8. The photovoltaic device according to claim 6, characterized in that, The hinge (120) on which at least part of the roller (180) is mounted is provided with a limiting bracket (190), and the limiting bracket (190) is provided on both sides of the corresponding roller (180). The limiting bracket (190) is adapted to be located on both sides of the component cable (700) and spaced apart from the component cable (700).

9. The photovoltaic device according to any one of claims 1-4, characterized in that, Two adjacent photovoltaic modules (110) within the photovoltaic module group (100) are hinged together by a first hinge (160); And / or, In the case where there are multiple photovoltaic module groups (100), the multiple photovoltaic module groups (100) are distributed along the second direction, and two adjacent photovoltaic modules (110) within the photovoltaic module group (100) are hinged at the top corner by a composite hinge (170), and the composite hinge (170) is also connected to the photovoltaic module (110) adjacent along the second direction.

10. A photovoltaic system, characterized in that, include: The first side support structure (410) includes a first side column (411) and a base (210) of the photovoltaic device as described in any one of claims 1-9. Second side support structure (420); The component cable (700) is connected between the first side support structure (410) and the second side support structure (420), and the component cable (700) is anchored to the anchor point (214) of the base (210). At least one photovoltaic module group (100) of the photovoltaic device as described in any one of claims 1-9, wherein the roller (180) of the photovoltaic device is supported on the module cable (700), and the photovoltaic module group (100) of the photovoltaic device is adapted to switch between an unfolded state and a folded state.

11. The photovoltaic system according to claim 10, characterized in that, Also includes: The component cable (700) is installed on the central support structure (430) by means of a clamp (434).

12. The photovoltaic system according to claim 10, characterized in that, Also includes: A drive mechanism (800), installed in at least one of the first side support structure (410) and the second side support structure (420), is used to drive the photovoltaic module group (100) to switch between an unfolded state and a folded state.

13. The photovoltaic system according to claim 12, characterized in that, The drive mechanism (800) includes: A power source (830) is installed on the first side support structure (410). The first transmission wheel (810) is electrically coupled to the power source (830); The second drive wheel (820) is installed on the second side support structure (420). A transmission cable (840) is wound around the first transmission wheel (810) and the second transmission wheel (820). A traction head (850) is mounted on the drive cable (840); A traction bracket (860) is mounted on the photovoltaic module (110) near the second side support structure (420) and is hinged to the traction head (850).

14. A construction method for a photovoltaic system as described in any one of claims 10-13, characterized in that, include: The photovoltaic device is lifted to the first side column (411), and the base (210) is installed on the first side column (411). Tension the component cable (700), anchor the component cable (700) to the anchor point (214), and remove the side wall (220). The photovoltaic module group (100) is unfolded along the component cable (700).

Images