阅读说明：本技术 一种快速安装的光伏组件集成板及安装方法 (Photovoltaic module integrated board capable of being installed quickly and installation method ) 是由 王春江 李建勇 迟鸣声 丁烨 于 2019-09-24 设计创作，主要内容包括：本发明提供一种快速安装的光伏组件集成板及安装方法,包括多块光伏组件、折叠式集成板固定框架、定位安装装置；折叠式集成板固定框架包括固定框架构件、定位合页；定位安装装置包括至少两组定位支架、驱动部件,驱动部件驱动定位支架运动；定位支架与折叠式集成板固定框架之间形成联动机构,通过定位支架控制折叠式集成板固定框架的展开和闭合；多块串联的光伏组件单板通过折叠式集成板固定框架联接形成一个集成单元,通过定位合页的定位角度控制集成单元展开后的结构形状,使集成单元通过折叠形成一块光伏组件单板的尺寸,或者展开后形成平面结构或曲面结构。本发明对光伏电池板起到保护作用,提高运输和安装的效率,降低光伏电站的建设成本。(The invention provides a photovoltaic assembly integrated board capable of being quickly installed and an installation method thereof, wherein the photovoltaic assembly integrated board comprises a plurality of photovoltaic assemblies, a folding type integrated board fixing frame and a positioning installation device; the folding integrated plate fixing frame comprises a fixing frame component and a positioning hinge; the positioning and mounting device comprises at least two groups of positioning brackets and a driving part, and the driving part drives the positioning brackets to move; a linkage mechanism is formed between the positioning support and the folding integrated board fixing frame, and the folding integrated board fixing frame is controlled to be unfolded and closed through the positioning support; the photovoltaic module single plates connected in series are connected through the folding integrated plate fixing frame to form an integrated unit, and the structural shape of the integrated unit after expansion is controlled through the positioning angle of the positioning hinge, so that the integrated unit is folded to form the size of one photovoltaic module single plate, or a plane structure or a curved surface structure is formed after expansion. The invention has the advantages of protecting the photovoltaic cell panel, improving the efficiency of transportation and installation and reducing the construction cost of the photovoltaic power station.)

1. The utility model provides a photovoltaic module integrated board of quick installation which characterized in that: the photovoltaic module comprises a plurality of photovoltaic module single plates connected in series, a folding integrated plate fixing frame, a positioning hinge and a positioning installation device; wherein the content of the first and second substances,

the foldable integrated board fixing frame comprises a plurality of fixing frame members and a plurality of positioning hinges, the fixing frame members are sequentially connected in series to form an integrated frame, and two adjacent fixing frame members are connected through the positioning hinges so that the two adjacent fixing frame members can be folded; a plurality of photovoltaic module single plates connected in series are connected through the folding integrated plate fixing frame to form an integrated unit;

the positioning hinge comprises a first hinge part and a second hinge part, the first hinge part is movably connected with the second hinge part, a group of first arc-shaped rib plates are symmetrically arranged on the first hinge part, the arc surfaces of the first arc-shaped rib plates extend along the upper space of the first hinge part, one end of each arc surface is fixed with the first hinge part, and the other end of each arc surface is provided with a first positioning key;

a group of second arc-shaped rib plates are symmetrically arranged on the second hinge part, arc surfaces of the second arc-shaped rib plates extend along the upper space of the second hinge part, one end of each arc surface is fixed with the second hinge part, and a second positioning key is arranged at the other end of each arc surface;

the first arc-shaped rib plate and the second arc-shaped rib plate rotate around the same circle center and are clamped with the second positioning key through a group of first positioning keys, and the first arc-shaped rib plate and the second arc-shaped rib plate are connected into a whole, so that the central angles of the first hinge part and the second hinge part are fixed; the positioning hinges are used for fixing the angle between the adjacent fixed frame members, namely the angle of the adjacent photovoltaic module single plates connected in series is fixed;

the positioning and mounting device comprises at least two groups of positioning brackets and a driving part, and the driving part is used for driving the positioning brackets to move; the positioning support comprises a plurality of section rod pieces, the section rod pieces are sequentially connected end to end, two adjacent section rod pieces are connected through an elastic hinge, the section rod pieces are connected through the elastic hinge to form a serrated support, and each adjacent section rod piece can move;

the two groups of positioning brackets are respectively and symmetrically arranged at two sides of the folding integrated board fixing frame, a linkage mechanism is formed between the positioning brackets and the folding integrated board fixing frame, and the positioning brackets are used for controlling the expansion and the closing of the integrated units; through the location angle control of location hinge the structural shape after the integrated unit expandes makes the integrated unit forms one through folding the size of photovoltaic module simplex board, perhaps forms plane structure or curved surface structure after expandeing.

2. The quick-install photovoltaic module manifold as recited in claim 1, wherein: each section rod piece of the positioning support is in cross connection with the side edge of the fixed frame member through a transverse pin, so that the positioning support and the foldable integrated board fixing frame form a cross-folding linkage mechanism, and when the foldable integrated board fixing frame is in a half-unfolding state, the foldable integrated board fixing frame and the positioning and mounting device form a staggered zigzag structure.

3. The quick-install photovoltaic module manifold as recited in claim 1, wherein: the driving part comprises a rolling wheel, a guide groove, a steel strand and a traction part;

the rolling wheel is arranged at the bottom of the positioning bracket; the guide groove is arranged below the positioning bracket, so that the rolling wheel slides along the guide groove;

the traction part is arranged at one end or two ends of the positioning bracket; the traction part comprises a rotating shaft, a driving wheel and two steel cable winding disks, the rotating shaft is arranged on the guide groove and is vertical to the length direction of the guide groove, the two steel cable winding disks are arranged at two ends of the rotating shaft, the driving wheel is arranged in the middle of the rotating shaft, and the rotating speed of the rotating shaft is controlled by the driving wheel to control the unfolding speed;

the steel strand is connected with the positioning support in a penetrating manner, the steel strand penetrates through each section rod piece in a penetrating manner, and one end of the steel strand is fixed with the first section of section rod piece or the last section of section rod piece through a cable anchorage device; the other end is connected with the steel cable winding disc;

the traction component controls the opening and closing angle and the opening and closing speed between the adjacent segment rod pieces through the tension of the steel strands, and the construction process of dynamic folding and unfolding is realized.

4. The quick-install photovoltaic module manifold as recited in claim 1, wherein: the photovoltaic module is characterized by further comprising a protection bottom plate, wherein the protection bottom plate is arranged on the bottom surfaces of the first photovoltaic module single plate and the last photovoltaic module single plate and plays a role in protecting crystalline silicon cells of the photovoltaic module single plates.

5. The quick-install photovoltaic module manifold as recited in claim 1, wherein: and center penetrating fixing bolt holes are formed in four corners of the fixing frame member, and the fixing frame member is fixed on the existing supporting structure by penetrating fixing bolts through the center penetrating fixing bolt holes.

6. The quick-install photovoltaic module manifold as recited in claim 1, wherein: the fixed frame component comprises four side frame strips, and the four side frame strips are welded or riveted to form a quadrilateral frame;

the inner frame of the quadrilateral frame is provided with a groove for mounting the photovoltaic module veneer.

7. The quickly-installed photovoltaic module integrated board according to claim 6, wherein the frame strips are made of aluminum alloy or steel metal hollow thin-walled tubes.

8. The quick-install photovoltaic module manifold as recited in claim 1, wherein: and the fixed frame member is provided with a positioning buffer strip and is positioned around the photovoltaic module single plate, so that the positioning buffer strip protrudes out of the surface of the photovoltaic module single plate by a certain height.

9. The quick-install photovoltaic module integrated board according to claim 8, wherein the positioning hinges are disposed on the outer side of the fixed frame member, the positioning hinges are fixed to the side of the fixed frame member by bolts and protrude from the photovoltaic module veneer by a height lower than the height of the positioning buffer strips protruding from the surface of the photovoltaic module veneer.

10. A method for installing a quick-install photovoltaic module integration board according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:

connecting a plurality of photovoltaic module single boards connected in series through a folding integrated board fixing frame to form an integrated unit, hoisting a string of folded integrated units to a photovoltaic supporting structure, and fixing the middle photovoltaic module single board in the integrated unit on the supporting structure or fixing any one of the first block and the last block on the supporting structure;

installing, positioning and installing the device: installing a guide slot above the support structure; placing a rolling wheel at the bottom of the positioning and mounting device into the guide groove; positioning brackets are arranged on two sides of the foldable integrated board fixing frame, the positioning brackets are arranged on the outer side edges of the foldable integrated board fixing frame through transverse pin positioning, so that the foldable integrated board fixing frame and the positioning brackets form a linkage mechanism capable of being folded in a crossed manner, and the positioning and mounting devices are used for providing accurate positioning and opening and closing of the linkage mechanism for the photovoltaic module single block;

arranging a traction component at one end or two ends of the integrated unit;

installing steel strands on the positioning supports, wherein the steel strands are connected with the positioning supports on two sides, one end of each steel strand penetrates through each section rod piece of each positioning support, one end of each steel strand is fixed with the first section rod piece or the last section rod piece through a cable anchorage device, the other end of each steel strand is connected with a steel cable winding disc of the traction component, and the traction speed of the steel strands is controlled by controlling the rotating speed of a rotating shaft through a driving wheel of the traction component, so that the opening and closing linkage mechanism is controlled;

installing a photovoltaic module integrated board, wherein the photovoltaic module integrated board can be installed from a middle photovoltaic module single block to two sides of the integrated unit, or the photovoltaic module single block or the last photovoltaic module single block is sequentially installed from one side to one side;

after the fixing frame members are completely unfolded, four penetrating fixing bolts on each fixing frame member are screwed;

opening the transverse pin to remove the positioning and mounting device for the next reuse;

and finishing the installation of the photovoltaic modules and the wiring of the inverter.

Technical Field

The invention relates to a solar photovoltaic power generation technology, in particular to a photovoltaic module integrated board capable of being installed quickly and an installation method.

Background

The current traditional energy structure forms mainly comprise fossil energy, such as coal, petroleum, natural gas and the like, which are all generated through long-time chemical and biological reactions and are all non-renewable. For the sustainable development of energy structures in human society, new energy sources have become inevitable. The solar energy has the advantages of cleanness, inexhaustibility, renewability, environmental protection and the like, is the most important and promising renewable energy form, and has wide development prospect. However, the current world solar power generation amount is less than 0.1% of the total power generation amount, which is not very compatible with the solar energy position, and the main reason is that the solar power generation device has higher cost and the economy cannot compete with the conventional energy. Among various solar power generation technologies, photovoltaic power generation is relatively low in cost. But the power generation cost is far higher than the traditional power generation of hydroelectric coal power. Therefore, to popularize photovoltaic power generation systems, it is critical to reduce the cost by reducing the overall cost of the power generation system.

At present, a solar photovoltaic power generation system is divided into a plurality of levels, wherein the first level is a unit level, and is smallest and inseparable. For crystalline silicon solar cells, the general sizes (diameters) are 125mm and 156mm, and the fixed low voltage is 0.7V. The second layer of encapsulation layer is characterized in that a plurality of units are connected in series and in parallel and are fixedly encapsulated in one assembly. For crystalline silicon solar cells, 60-72 silicon wafers are usually packaged in a glass and an aluminum back plate, and the size is about 1-2 square meters generally; a third hierarchical array level, wherein the array is formed by a plurality of components; the fourth level is the power station level, and hundreds of KW and even MW occupy tens of thousands of square meters. At present, because the installation time of the middle level is long, more labor is consumed, the damage of the battery plates is easily caused in the processes of transportation, construction and installation, and particularly, the transportation and installation time of components is long, the cost is high and the working procedures are complicated due to the fact that some solar power stations built in regions with severe climate such as desert plateaus and the like.

From the economical point of view, the larger the installation scale, the lower the unit installation cost. How to break through the installation of monolithic photovoltaic module reaches the purpose of raising the efficiency through the installation scheme of large-scale standardization. Large-scale photovoltaic power plants require the structural form and the basic construction of the photovoltaic modules to be adapted to the scale, so that the construction costs of the power plant can be significantly reduced by reducing the installation costs.

At present, photovoltaic module all adopts the single-ply board encapsulation to fix in transportation and installation, and this kind of structure has the problem of face deformation when the turnover because the atress performance is relatively weak, and reasons such as rigidity is inhomogeneous. Resulting in the bottom most product of each product being easily damaged during the turnaround. Therefore, the influence of the deformation of the plate surface on the product must be avoided during the turnover. In addition, the existing single-layer plate tray has poor stability during operation and certain potential safety hazard.

The size of photovoltaic modules is also increasing at present, from the past 60 to 72 sheets of crystalline silicon cell modules, and even to 5.7 square meters of large thin film photovoltaic modules. But suffer from a number of difficulties arising from some objective conditions. The assembly of 72 pieces has the weight of 50 jin, the size has the height of 2 m and the width of 1m, and the operation of carrying and installing is inconvenient for workers. The assembly has glass and crystalline silicon wafers, is brittle and sensitive to deformation. Therefore, if the structure of the existing assembly is not changed, the size is increased, the deformation caused by too weak rigidity of the assembly can cause glass fracture or silicon chip subfissure, and unnecessary loss is caused.

Through retrieval, the chinese patent application No. CN201711207145.9 discloses a foldable photovoltaic support structure, which comprises a plurality of foldable support units, wherein the support units are connected by connecting rods, each support unit comprises a plurality of rectangular support frames, a front upright post and a rear upright post, the front upright post and the rear upright post are arranged at the lower parts of the support frames, the support frames are hinged, the front upright post and the rear upright post are connected to the support frames by positioning pins, each support frame comprises a long side and a short side, the back of the long side of the support frame is provided with a groove, when the photovoltaic support structure is unfolded, the front upright post and the rear upright post are in a vertical direction, and the support frames are arranged in rows in an inclined manner; when folding, in front column and the inslot that the frame was supported by the income of back stand, photovoltaic supporting structure was accomodate into the cubic, is convenient for accomodate and transport.

However, the above patents have the following disadvantages:

the drive power of above-mentioned patent is the bottom that sets up photovoltaic module, and it leads to being difficult to start at folding initial stage, especially receive and fold when unfolding by the complete plane of photovoltaic board, and actuating mechanism can lead to easily blocking because initial arm of force is too little, or the condition such as mechanism's operation difficulty takes place. Moreover, the structure of above-mentioned patent is only to carrying out folding device for the photovoltaic module that is plane after finally expanding, and can't realize folding to the fashioned photovoltaic module integrated board of curved surface. Secondly, the structure of the above patent is not provided with a protection device for the photovoltaic modules during transportation and installation, and structural designs such as reinforcement of connection rigidity between the photovoltaic modules after deployment are not considered.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a photovoltaic module integrated board capable of being installed quickly and an installation method.

In order to achieve the above object, a first aspect of the present invention provides a photovoltaic module integrated board capable of being quickly mounted, which includes a plurality of photovoltaic module single boards connected in series, a foldable integrated board fixing frame, a positioning hinge, and a positioning mounting device; wherein the content of the first and second substances,

the foldable integrated board fixing frame comprises a plurality of fixing frame members and a plurality of positioning hinges, the fixing frame members are sequentially connected in series to form an integrated frame, and two adjacent fixing frame members are connected through the positioning hinges so that the two adjacent fixing frame members can be folded; a plurality of photovoltaic module single plates connected in series are connected through the folding integrated plate fixing frame to form an integrated unit;

the positioning hinge comprises a first hinge part and a second hinge part, the first hinge part is movably connected with the second hinge part, a group of first arc-shaped rib plates are symmetrically arranged on the first hinge part, the arc surfaces of the first arc-shaped rib plates extend along the upper space of the first hinge part, one end of each arc surface is fixed with the first hinge part, and the other end of each arc surface is provided with a first positioning key;

a group of second arc-shaped rib plates are symmetrically arranged on the second hinge part, arc surfaces of the second arc-shaped rib plates extend along the upper space of the second hinge part, one end of each arc surface is fixed with the second hinge part, and a second positioning key is arranged at the other end of each arc surface;

the first arc-shaped rib plate and the second arc-shaped rib plate rotate around the same circle center and are clamped with the second positioning key through a group of first positioning keys, and the first arc-shaped rib plate and the second arc-shaped rib plate are connected into a whole, so that the central angles of the first hinge part and the second hinge part are fixed; the positioning hinges are used for fixing the angle between the adjacent fixed frame members, namely the angle of the adjacent photovoltaic module single plates connected in series is fixed;

the positioning and mounting device comprises at least two groups of positioning brackets and a driving part, and the driving part is used for driving the positioning brackets to move; the positioning support comprises a plurality of section rod pieces, the section rod pieces are sequentially connected end to end, two adjacent section rod pieces are connected through an elastic hinge, the section rod pieces are connected through the elastic hinge to form a serrated support, and each adjacent section rod piece can move;

the two groups of positioning brackets are respectively and symmetrically arranged at two sides of the folding integrated board fixing frame, a linkage mechanism is formed between the positioning brackets and the folding integrated board fixing frame, and the positioning brackets are used for controlling the expansion and the closing of the integrated units; through the location angle control of location hinge the structural shape after the integrated unit expandes makes the integrated unit forms one through folding the size of photovoltaic module simplex board, perhaps forms plane structure or curved surface structure after expandeing.

Preferably, each segment rod piece of the positioning bracket is cross-connected with the side edge of the fixed frame member by a cross pin, so that the positioning bracket and the foldable integrated board fixing frame form the cross-folding linkage mechanism, and when the foldable integrated board fixing frame is in a half-unfolded state, the foldable integrated board fixing frame and the positioning and mounting device form a staggered zigzag structure.

Preferably, the driving part comprises a rolling wheel, a guide groove, a steel strand and a traction part;

the rolling wheel is arranged at the bottom of the positioning bracket; the guide groove is arranged below the positioning bracket, so that the rolling wheel slides along the guide groove;

the traction part is arranged at one end or two ends of the positioning bracket; the traction part comprises a rotating shaft, a driving wheel and two steel cable winding disks, the rotating shaft is arranged on the guide groove and is vertical to the length direction of the guide groove, the two steel cable winding disks are arranged at two ends of the rotating shaft, the driving wheel is arranged in the middle of the rotating shaft, and the rotating speed of the rotating shaft is controlled by the driving wheel to control the unfolding speed;

the steel strand is connected with the positioning support in a penetrating manner, the steel strand penetrates through each section rod piece in a penetrating manner, and one end of the steel strand is fixed with the first section of section rod piece or the last section of section rod piece through a cable anchorage device; the other end is connected with the steel cable winding disc;

the traction component controls the opening and closing angle and the opening and closing speed between the adjacent segment rod pieces through the tension of the steel strands, and the construction process of dynamic folding and unfolding is realized.

Preferably, the photovoltaic module further comprises a protection bottom plate, wherein the protection bottom plate is arranged on the bottom surfaces of the first photovoltaic module single plate and the last photovoltaic module single plate and plays a role in protecting a crystalline silicon cell of the photovoltaic module single plate.

Preferably, the four corners of the fixed frame member are provided with penetrating fixing bolt holes, and the fixed frame member is fixed on the existing supporting structure by penetrating fixing bolts through the penetrating fixing bolt holes.

Preferably, the fixed frame member comprises four side frame strips, and the four side frame strips are welded or riveted to form a quadrilateral frame;

the inner frame of the quadrilateral frame is provided with a groove for mounting the photovoltaic module veneer.

Preferably, the frame strip is an aluminum alloy or steel metal hollow thin-walled tube.

Preferably, the fixing frame member is provided with a positioning buffer strip, and the positioning buffer strip is positioned around the photovoltaic module single plate, so that the positioning buffer strip protrudes out of the surface of the photovoltaic module single plate by a certain height.

Preferably, the positioning hinge is arranged on the outer side edge of the fixed frame member, the positioning hinge is fixed with the side edge of the fixed frame member through a bolt and protrudes out of the photovoltaic module single plate by a height which is lower than the height of the positioning buffer strip protruding out of the surface of the photovoltaic module single plate.

A second aspect of the present invention provides a method for mounting a photovoltaic module integrated board, which comprises:

connecting a plurality of photovoltaic module single boards connected in series through a folding integrated board fixing frame to form an integrated unit, hoisting a string of folded photovoltaic module single boards of the integrated unit onto a photovoltaic supporting structure, and fixing a middle photovoltaic module single board in the integrated unit on the supporting structure or fixing any one of a head block and a tail block on the supporting structure;

installing, positioning and installing the device: installing a guide slot above the support structure; placing a rolling wheel at the bottom of the positioning and mounting device into the guide groove; positioning brackets are arranged on two sides of the foldable integrated board fixing frame, the positioning brackets are arranged on the outer side edges of the foldable integrated board fixing frame through transverse pin positioning, so that the foldable integrated board fixing frame and the positioning brackets form a linkage mechanism capable of being folded in a crossed manner, and the positioning and mounting devices are used for providing accurate positioning and opening and closing of the linkage mechanism for the photovoltaic module single block;

arranging a traction component at one end or two ends of the integrated unit;

installing steel strands on the positioning supports, wherein the steel strands are connected with the positioning supports on two sides, one end of each steel strand penetrates through each section rod piece of each positioning support, one end of each steel strand is fixed with the first section rod piece or the last section rod piece through a cable anchorage device, the other end of each steel strand is connected with a steel cable winding disc of the traction component, and the traction speed of the steel strands is controlled by controlling the rotating speed of a rotating shaft through a driving wheel of the traction component, so that the opening and closing linkage mechanism is controlled;

installing a photovoltaic module integrated board, wherein the photovoltaic module integrated board can be installed from a middle photovoltaic module single block to two sides of the integrated unit, or the photovoltaic module single block or the last photovoltaic module single block is sequentially installed from one side to one side;

after the fixing frame members are completely unfolded, four penetrating fixing bolts on each fixing frame member are screwed;

opening the transverse pin to remove the positioning and mounting device for the next reuse;

and finishing the installation of the photovoltaic modules and the wiring of the inverter.

Compared with the prior art, the invention has at least one of the following beneficial effects:

the structure of the invention is assembled into a whole by a plurality of photovoltaic module single plates which are connected in series and a folding integrated plate fixing frame, and the plurality of photovoltaic module single plates are fixedly arranged on one integrated unit in a series connection mode, thereby not only having good protection effect on a photovoltaic cell panel, but also greatly improving the efficiency of transportation and installation and reducing the construction cost of a photovoltaic power station; in the device, the positioning and mounting devices are detachably arranged on two sides of the folding integrated board fixing frame, so that the folding integrated board fixing frame can be uniformly controlled to be unfolded and closed, and the positioning and mounting devices provide accurate positioning for mounting the photovoltaic module single board; the positioning and mounting device is fixed with the folding integrated board fixing frame in a detachable mode, so that the positioning and mounting device is convenient to detach and can be recycled after installation is finished.

Furthermore, the shape of the curved surface after final expansion is controlled by the positioning angle of the positioning hinge, so that different curved surface shapes can be simply and conveniently realized, the curvature of the curved surface of the photovoltaic power station can be flexibly adjusted according to the local illumination condition of the photovoltaic power station, the local direct sunlight direction can be approached to the maximum extent, the photoelectric conversion efficiency of the power station can be exerted to the maximum extent, and the efficiency of the power station can be improved. The mutual block lock of location hinge through a set of navigation key is died in this device, the angle of the central angle of fixed position hinge, simultaneously, after a set of navigation key interlocking of location hinge, make first arc floor and second arc floor to the concatenation formula structure as an organic whole, to the effect that the border that borders on of photovoltaic module veneer formed horizontal support and provided stiffening rib.

After the single photovoltaic panel assembly single board is manufactured, according to the specification of the current inverter, the single photovoltaic panel assembly single board is generally formed into a series integral unit by connecting 23 photovoltaic panel single boards in series, the total weight of a folded series unit is less than 0.6T calculated according to the weight of each photovoltaic panel about 25kg, and the total size after folding is about 1m X1.65.65 1.65m X0.8.8 m, so that the photovoltaic inverter is very convenient for the safe operation of small tools. The photovoltaic module single plate series connection group folded into a block close to a rectangular block has the size convenient for transportation, transportation and installation, particularly greatly saves the installation and wiring working hours, and can shorten the installation period 3/4 compared with the traditional single plate installation; according to the current work time cost of 300 yuan/person day, the direct installation cost can be saved by about 7000 yuan per megawatt. Therefore, according to the concept of the invention, the whole product components are assembled into a whole in advance through the folding integrated board fixing frame, the series number of the photovoltaic module single boards can be adjusted according to the requirements of customers, and then the photovoltaic module single boards are delivered out of a factory, transported and sold, so that the cost of the customers is remarkably saved, the added value of the product can be greatly increased, and the construction cost and the period of a photovoltaic power station are reduced. The foldable fixed photovoltaic module framework is suitable for large-scale quick installation, safe transportation and turnover of solar photovoltaic module veneers.

In the device, the protection measures of the single photovoltaic panel assembly in the transportation process are further considered, a structure that the bottom of the first photovoltaic panel assembly single plate and the bottom of the last photovoltaic panel assembly single plate are provided with the protection bottom plates is provided, the rigidity of the bottom plates is further improved by adopting the spaced bidirectional transverse cutting laths on the bottom plates, the upper protection surface and the lower protection surface of the integral series connection photovoltaic panel assembly single integrated unit blocks are met, and the crystalline silicon battery piece is protected.

In the device, not only is the repeated folding of the photovoltaic module single plates in the using process considered, but also the protection effect on the photovoltaic module in the transportation and installation processes considered, and the connection rigidity between the unfolded photovoltaic module single plates is strengthened through the design of the frame and the hinge. The driving force of the device is in the middle of the photovoltaic module single plate, and the moving stage and the ending stage are easy to control at the folding starting stage. The expansion table can be a plane after being expanded finally, and can also be a curved surface after being expanded, so that the expansion table has better regional adaptability.

By improving the folding assembly and mounting process of the series groups, the mounting quality and reliability of the photovoltaic module single plate can be greatly improved, the mounting period is greatly shortened, and the operating efficiency of a photovoltaic power station is improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1a is a schematic view of a fully unfolded state of the integrated board according to an embodiment of the present invention;

fig. 1b is a schematic connection diagram of two adjacent photovoltaic module veneers according to an embodiment of the invention;

FIG. 1c is a partial top view of a manifold plate according to one embodiment of the present invention;

FIG. 2a is a schematic view of a positioning hinge according to an embodiment of the present invention;

FIG. 2b is a perspective view of a positioning hinge according to an embodiment of the present invention;

FIG. 2c is a perspective view of a first hinge component according to one embodiment of the present invention;

FIG. 2d is a schematic view of a hinge shaft of the positioning hinge according to an embodiment of the present invention;

FIG. 2e is a perspective view of a second hinge component according to one embodiment of the invention;

FIG. 2f is a side view of a 120 orientation hinge according to one embodiment of the present invention;

FIG. 2g is a side view of a 150 orientation hinge according to one embodiment of the present invention;

FIG. 2x is a side view of a 180 positioning hinge according to one embodiment of the present invention;

FIG. 3a is a top view of the half-unfolded state of the integrated board according to one embodiment of the present invention;

FIG. 3b is an axial view of the half-unfolded state of the integrated board according to one embodiment of the present invention;

FIG. 3c is a schematic view of the expanded curved surface of the integration board according to an embodiment of the present invention;

FIG. 4a is a schematic structural diagram of a positioning and mounting device according to an embodiment of the present invention;

FIG. 4b is a schematic perspective view of the integrated board according to the preferred embodiment of the present invention;

FIG. 4c is a top view of FIG. 4 b;

fig. 5a is a schematic perspective view of an integrated board according to a preferred embodiment of the present invention;

FIG. 5b is a top view of FIG. 5 a;

the scores in the figure are indicated as: the photovoltaic module fixing frame comprises a photovoltaic module single plate 1, a positioning hinge 2, a folding integrated plate fixing frame 3, a positioning installation device 4, a positioning buffer strip 5, a first hinge part 201a, a second hinge part 201b, a first arc-shaped rib plate 202a, a second arc-shaped rib plate 202b, a first positioning key 203a, a second positioning key 203b, a positioning hole 204, a fixing frame part 301, a penetrating fixing bolt hole 302, a penetrating fixing bolt hole 303, a penetrating fixing bolt 401, a segment rod part 402, an elastic hinge 402, a steel strand 403, a transverse pin 404, a rolling wheel 405, a driving wheel 406, a steel cable reel 407, a rotating shaft 408 and a guide groove 409.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.

Referring to fig. 1a, 1b, 1c, and 3b, which are schematic structural views of a photovoltaic module board that is quickly installed according to an embodiment of the present invention, referring to fig. 3b, the photovoltaic module board includes a plurality of photovoltaic module single boards 1 connected in series, a folding board fixing frame 3, and a positioning and installing device 4, wherein the folding board fixing frame 3 includes a plurality of fixing frame members 301 and a plurality of positioning hinges 2, the plurality of fixing frame members 301 are sequentially connected in series to form an integrated frame, and two adjacent fixing frame members 301 are connected by the positioning hinges 2, so that each two adjacent fixing frame members 301 are foldable. A plurality of photovoltaic module single plates 1 connected in series are connected through a folding integrated plate fixing frame 3 to form an integrated unit, so that the plurality of photovoltaic module single plates 1 connected in series can be folded into the size of one photovoltaic module single plate 1. In a specific installation of an embodiment: one side of the first fixed frame member 301 is connected to one side of the second fixed frame member 301 by a set of positioning hinges 2, and the set of positioning hinges 2 comprises three positioning hinges 2, however, in other embodiments, other numbers of positioning hinges 2, such as two or one, may be used, and this may be adjusted according to the size and application requirements of the actual fixed frame member 301, and is not limited to the three positioning hinges 2. One side of the second fixed frame 301 is connected with one side of the third fixed frame 301 through a positioning hinge 2, and the second fixed frame 301 is sequentially connected with the next fixed frame 301 and finally connected into a series of frames.

The positioning hinges 2 are used for fixing the angle between the adjacent fixed frame members 301, namely, the angle between the adjacent photovoltaic module single plates 1 connected in series. In a specific embodiment, the opening and closing angle of the positioning hinge 2 can be set according to the required curved surface form, so that different curved surface shapes can be simply and conveniently realized, the curvature of the curved surface of the photovoltaic power station can be flexibly adjusted according to the local illumination condition of the photovoltaic power station, the local direct solar radiation direction can be maximally approached, the photoelectric conversion efficiency of the power station can be maximally exerted, and the integrated board can be suitable for different regions. In a preferable mode, when the included angle between each photovoltaic module single block and the horizontal plane is less than 30 degrees, the curved surface form of the integrated plate obtained in the angle range can greatly exert the photoelectric conversion efficiency of the power station and improve the efficiency of the power station.

Referring to fig. 2a and 2b, the positioning hinge 2 includes a first hinge component 201a and a second hinge component 201b, and referring to fig. 2c, 2d and 2e, a connecting sleeve is provided on the first hinge component 201a, a connecting sleeve is provided on the second hinge component 201b, the first hinge component 201a and the second hinge component 201b are sleeved on a rotating shaft through the connecting sleeves, so that the first hinge component 201a and the second hinge component 201b can rotate around the rotating shaft, and the first hinge component 201a and the second hinge component 201b are movably connected.

Referring to fig. 2c, a set of first arc-shaped rib plates 202a is symmetrically arranged on the first hinge part 201a, an arc surface of the first arc-shaped rib plate 202a extends along an upper space of the first hinge part 201a, one end of the arc surface is fixed with the first hinge part 201a, and a first positioning key 203a is arranged at the other end.

Referring to fig. 2e, a set of second arc-shaped rib plates 202b are symmetrically arranged on the second hinge part 201b, an arc surface of the second arc-shaped rib plate 202b extends along an upper space of the second hinge part 201b, one end of the arc surface is fixed with the second hinge part 201b, and a second positioning key 203b is arranged at the other end of the arc surface.

Referring to fig. 2a, the first arc-shaped rib 202a and the second arc-shaped rib 202b rotate around the same circle center, and are locked by a set of first positioning keys 203a and second positioning keys 203b, so that the circle center angles of the first hinge part 201a and the second hinge part 201b can be locked, and the fixed frame members 301 are used for fixing positions after being unfolded. Meanwhile, the first arc-shaped rib plate 202a and the second arc-shaped rib plate 202b are clamped and connected into an integral structure through the clamping and locking of the group of first positioning keys 203a and the second positioning keys 203b, so that the adjacent frames of the photovoltaic assembly veneer 1 are transversely supported and provided with stiffening ribs.

Referring to fig. 2c and 2e, the first hinge part 201a and the second hinge part 201b of the positioning hinge 2 are respectively provided with a plurality of positioning holes 204, and the first hinge part 201a and the second hinge part 201b are respectively mounted on the side edges of the adjacent fixed frame member 301 by bolts passing through the positioning holes 204. The positioning hinge 2 and the fixed frame member 301 are detachably connected, so that the independent module can be conveniently detached and maintained. The positioning angle of the positioning hinge 2 is adjusted through the central angle of the two hinges according to the positioning hinge 2, and the opening angle of the positioning hinge 2 can be set to be different positioning angles according to needs during specific implementation. The opening angle of the positioning hinge 2 is changed, the angle after the photovoltaic module is completely unfolded is controlled through a group of positioning keys, the positioning angle shown in the reference figure 2f is 120 degrees, the positioning angle shown in the reference figure 2g is 150 degrees, and the two angles can enable the unfolded photovoltaic module single plate 1 to be in a curved surface form. Referring to fig. 2x, when the positioning angle of the positioning hinge 2 is 180 degrees, the integrated board is completely unfolded in a horizontal form.

Referring to fig. 3b, the positioning and mounting device 4 includes at least two sets of positioning brackets and driving components, and the driving components can be used for driving the positioning brackets to move. The positioning support comprises a plurality of segment rod pieces 401, the segment rod pieces 401 are sequentially connected end to end, two adjacent segment rod pieces 401 are connected through elastic hinges 402, the segment rod pieces 401 are connected through the elastic hinges 402 to form a serrated support, and the adjacent segment rod pieces 401 can move.

Two sets of locating support symmetry respectively set up in the both sides of foldable integrated board fixed frame 3, form link gear between locating support and the foldable integrated board fixed frame 3, through the expansion and the closure of locating support control integrated unit, for installation photovoltaic module veneer 1 provides accurate positioning, simultaneously, this locating support can also play the effect of stable support in the construction installation process.

The photovoltaic module single plates 1 connected in series are connected through the folding integrated plate fixing frame 3 to form an integrated unit, and the structural shape of the integrated unit after being unfolded is controlled through the positioning angle of the positioning hinge 2, so that the integrated unit is folded to form the size of one photovoltaic module single plate 1, or is unfolded to form a plane structure or a curved surface structure. In a specific construction process, the photovoltaic module single plates connected in series are assembled into a whole in advance through the folding integrated plate fixing frame 3, the series number of the photovoltaic module single plates 1 can be adjusted according to the requirements of customers, the installation and wiring working hours can be greatly saved, and the installation period 3/4 can be shortened compared with the traditional single plate installation.

In other preferred embodiments, as shown with reference to fig. 3a and 3b, each segment bar 401 of the positioning bracket is cross-connected to the side of the fixed frame member 301 by a cross pin 404, so that a cross-folding linkage is formed between the positioning bracket and the folding manifold fixing frame 3. In the implementation, the point of cross-connection between the two is located at the center of each segment rod 401, and also at the center of the side frame of the positioning frame 3, and is fastened by the central transverse pin 404. Referring to fig. 3b, when the foldable board fixing frame 3 is in a half-unfolded state, the foldable board fixing frame 3 and the positioning and mounting device 4 form a staggered zigzag structure.

In the specific implementation process: the multi-block photovoltaic module single plates 1 are connected in series and then connected through the folding integrated plate fixing frame 3 to form an integrated unit, specifically: the wires among the photovoltaic module single plates 1 are connected in series in advance, and the photovoltaic module single plates 1 are fixedly installed in the fixed frame member 301 in a clamping groove mode. The integrated unit can be folded to form the size of a photovoltaic module single plate 1, or unfolded to form a plane structure or a curved surface structure. The plane form of the unfolded integrated board is controlled by adjusting the positioning angle of the positioning hinge 2, the integrated board is folded and unfolded into a whole, a plane can be formed, a curved surface form can also be formed, and the shape of the finally unfolded curved surface is controlled by the positioning angle of the positioning hinge 2. For example: referring to fig. 3c, 6 photovoltaic modules are connected in series in a single block to form a string of foldable integrated units, the integrated board is unfolded by the positioning and mounting device 4 to form a curved surface structure, a plurality of groups of integrated units of the curved surface structure are connected in series, and the plurality of groups of integrated units of the curved surface structure are connected in parallel and can be positioned to form a cylindrical integrated unit. The cylindrical integrated unit can receive direct solar radiation directions from different directions, can exert the photoelectric conversion efficiency of the power station to the maximum extent, and improves the efficiency of the power station.

The number of the photovoltaic module single plates 1 connected in series can be changed at will, and according to the capacity of the existing inverter, the series-connected integrated plates of the photovoltaic module single plates 1 generally have certain scale limitation, and generally take 23 blocks, so that according to the performance improvement of the inverter in the future, the series-connected number of the modules can be greatly improved, and the determination can be carried out only according to the condition of field carrying machinery. If even number of photovoltaic module single plates 1 are connected in series, the protection bottom plate for ensuring the transportation process has good protection effect on the whole assembly installation unit after folding, and if odd number of photovoltaic module single plates 1 are connected in series, the last photovoltaic plate needs extra protection measures. During specific installation: because of the weight, the first photovoltaic module single plate 1 in the folding series module is slightly higher than the common single module in installation time, but the subsequent modules can easily unfold and install a string of photovoltaic panels with fixed frames by controlling the positioning and installing device 4 due to the series one-way hinge structure, the positioning is accurate, and the whole installation efficiency is greatly improved. Obviously, the more the number of the components in series, the larger the total area, the more the installation time is saved.

In other embodiments: referring to fig. 4a, 4b, and 4c, the present embodiment takes six photovoltaic module single plates 1 connected in series as an example. The driving component comprises a rolling wheel 405, a guide groove 409, a steel strand 403 and a traction component; the rolling wheels 405 are arranged at the bottom of the positioning support, in the specific implementation, the rolling wheels 405 are arranged on the positioning and mounting device 4, the rolling wheels 405 are arranged at one end of the segment rod members 401, and the rolling wheels are arranged between two adjacent segment rod members 401 in a staggered manner. For example, a first rolling wheel 405 is mounted at one end of the first segment link 401, and a second rolling wheel 405 is mounted at the end of the connection of the second segment link 401 and the third segment link 401, sequentially offset from each other. Referring to fig. 4b, at the end of the positioning frame in contact with the support surface (the bottom of the positioning frame), at the bottom of each support corner made up of two segment rods 401, a rolling wheel 405 is mounted. The guide groove 409 is arranged below the positioning bracket, and during specific construction, the rolling wheel 405 at the bottom of the positioning and mounting device 4 is mounted in the guide groove 409, and the rolling wheel 405 can slide along the guide groove 409. The guide groove 409 can be used for guiding, and the motion track of the guide groove 409 is matched with the unfolding track of the integration plate, that is, the guide groove 409 with the same track can be matched according to different curved surface forms, for example, the guide groove 409 with a certain radian and the guide groove 409 horizontally arranged. The guide groove 409 may be a channel steel.

The traction component is arranged at one end or two ends of the positioning bracket. The traction member includes a rotation shaft 408, a driving wheel 406, and two wire reels 407, the rotation shaft 408 is disposed on the guide groove 409 and is perpendicular to the length direction of the guide groove 409, the two wire reels 407 are disposed at both ends of the rotation shaft 408, the driving wheel 406 is disposed at the middle position of the rotation shaft 408, and the wire reels 407 at both ends are driven to move by the driving wheel 406.

The steel strands 403 are connected with the positioning brackets, the two steel strands 403 are respectively connected with the plurality of segment rod pieces 401 of the positioning brackets on the two sides in a penetrating manner, the number of the segment rod pieces 401 adopted in the embodiment is matched with the number of the fixed frame members 301 of the folding integrated board fixed frame 3, and therefore the folding integrated board fixed frame 3 and the positioning brackets on the two sides form a cross folding linkage mechanism. Penetrating steel strands 403 through each segment rod member 401, wherein one end of each steel strand 403 is fixed with the first segment rod member 401 or the last segment rod member 401 through a cable anchorage; the other end is connected to a wire reel 407. The first photovoltaic module single plate 1 or the last photovoltaic module single plate 1 is pulled by the traction part, the unfolding speed is controlled by controlling the rotating speed of the rotating shaft 408 through the driving wheel 406, and when the driving wheel 406 stops rotating, braking force is provided to keep the stability and balance of a certain intermediate state in the construction unfolding process. The traction component controls the opening and closing angle and the opening and closing speed between each adjacent segment rod piece 401 through the tension of the steel strand 403, and the construction process of dynamic folding and unfolding is realized. Adopt this traction element can make the power that acts on the locating support both sides keep even to make foldable integrated board fixed frame 3 can stably expand, be difficult to take place accidents such as slope, ensure to keep stable in the installation.

In another preferred embodiment, seven photovoltaic module single boards 1 are connected in series in this embodiment, traction members are respectively disposed at two ends of the folding integrated board fixing frame 3, in the specific implementation process, the photovoltaic module single board 1 located in the middle is fixed first, and the photovoltaic module single board 1 located in the middle is fixed on the supporting structure through the piercing fixing bolt 303, as shown in fig. 5a and 5b, two sets of positioning brackets (4) are symmetrically disposed at two sides of the folding integrated board fixing frame 3, respectively, 4 steel strands 403 are pierced through each segment rod 401 of each positioning bracket, one end of each steel strand 403 is fixed with the last segment rod 401 through a cable anchorage, and the other end is connected with the cable winding disc 407. The first photovoltaic module single plate 1 and the last photovoltaic module single plate 1 are respectively pulled by the traction parts at the two ends at the same time, the rotating speed of the rotating shaft 408 is controlled through the driving wheel 406 to control the unfolding speed, and when the driving wheel stops rotating, braking force is provided to keep the stability and balance of a certain intermediate state in the construction and unfolding process. This embodiment is applicable to the photovoltaic module veneer 1 of installation odd number piece, expandes from both ends, makes the process of expandeing more steady.

In other embodiments: center-penetrating fixing bolt holes 302 are formed in four corners of the fixing frame member 301, and the fixing frame member 301 is fixed to the existing support structure by penetrating fixing bolts 303 through the center-penetrating fixing bolt holes 302.

In other embodiments: the fixed frame member 301 includes four side frame strips that are welded or riveted to form a quadrilateral frame. The side frame strips can be aluminum alloy or steel metal hollow thin-walled tubes, and high-rigidity frames are adopted, so that the side frame strips can be supported and protected, and the safety of the integrated product can be ensured. The inner frame of the quadrilateral frame is provided with a groove for mounting the photovoltaic module veneer 1. Four penetrating fixing bolt holes 302 are formed in four corners of the quadrilateral frame, and penetrating fixing bolts 303 penetrate through the bolt holes and are used for fixing the frame member 301 and the photovoltaic module single plate 1.

In other embodiments: the fixed frame member 301 is provided with the positioning buffer strips 5, the positioning buffer strips 5 are arranged on the inner frame of the quadrilateral frame and are located around the photovoltaic module single plate 1, so that the positioning buffer strips 5 protrude out of the surface of the photovoltaic module single plate 1 by a certain height and share the fixed frame member with the positioning and mounting device 4. When the height of location hinge 2 is higher than photovoltaic module veneer 1, in the integrated board folding process, cause the damage easily. Through setting up than the location buffering strip 5 that highly is slightly higher, can prevent to bump in folding in-process, play location and cushioning effect after folding photovoltaic module veneer 1.

In other embodiments: after the photovoltaic panels are folded, the bottom surfaces of the photovoltaic panels at the lowest part and the uppermost part of the device face outwards, so that the crystalline silicon battery pieces of the photovoltaic module single plate 1 are easily damaged in the transportation process. In view of this problem, a guard is further provided in the present device. The protective device can adopt a common light plate with certain rigidity as a protective bottom plate and is fixedly connected by a factory rivet. The protection bottom plate is arranged on the bottom surfaces of the first photovoltaic module single plate 1 and the last photovoltaic module single plate 1, and plays a role in protecting the crystalline silicon battery piece of the photovoltaic module single plate 1. When the last photovoltaic module single board 1 is installed, if the number of a string of photovoltaic module single boards 1 is odd, a front side and a back side are adopted to install a protection bottom board before leaving a factory, and after the installation is finished, the front side protection bottom board is directly dismantled. If the number of the assembly boards in a string is even, the protective bottom board is only installed on the reverse side before the factory shipment. The upper and lower protection surfaces of the whole series connection photovoltaic module single plate 1 are met, and meanwhile, the crystalline silicon battery piece is protected. The protection bottom plate can also adopt a bidirectional transverse cutting batten with an interval of 30cm to improve the rigidity of the bottom plate, the interval size can be adjusted according to the thickness of the batten, and the protection effect on the crystalline silicon battery piece is achieved as long as the design requirements of balance stress and rigidity are met and the upper protection surface and the lower protection surface of the whole series photovoltaic unit are met. In the transportation process, the photovoltaic module single plate 1 and the folding integrated plate fixing frame 3 are fixedly connected into a whole, and the whole photovoltaic unit is protected by the reinforced upper and lower component protection bottom plates. Making the integrity and rigidity of the photovoltaic structure beneficial for protecting the fragile photovoltaic module veneer 1 during transportation, installation and use.

In other embodiments, the positioning hinges 2 are disposed on the outer side edges (outer edges of the side edges) of the fixing frame members of the module units, and the positioning hinges 2 are fixed to the side edges of the fixing frame members 301 by bolts and protrude from the photovoltaic module single plates 1 by a height not exceeding the height of the positioning frame members.

The photovoltaic module integrated board disclosed by the invention has the advantages that through the more reasonable design of the photovoltaic module single board 1, the transportation and storage safety can be ensured, the installation process is simplified, the installation efficiency is improved, the time is reduced, and the labor cost is reduced, so that the photovoltaic module integrated board becomes a very important aspect of photovoltaic development. Aiming at the problems that the existing photovoltaic module integrated plate assembly is too large and causes certain difficulties in-plant transportation and field transportation, the production, transportation and installation processes are comprehensively considered, and the photovoltaic module integrated plate assembly is designed to not only prevent the area of a single plate assembly from being too large, but also ensure the rigidity of the assembly and protect the wafer.

Another embodiment provides a method for installing a photovoltaic module integration board which can be installed quickly, and the method comprises the following specific installation steps:

a plurality of photovoltaic module single plates 1 connected in series are connected through a folding integrated plate fixing frame 3 to form an integrated unit, before installation, a string of integrated units of the folded photovoltaic module single plates 1 is hoisted to a photovoltaic supporting structure through a small machine tool, the photovoltaic supporting structure is a photovoltaic supporting frame in the prior art, and the middle photovoltaic module single plate 1 in the integrated unit is fixed on the supporting structure or any one of the head block and the tail block is fixed on the supporting structure.

Installing, positioning and installing the device: a guide slot 409 is installed above the support structure; placing the rolling wheel 405 at the bottom of the positioning and mounting device into the guide groove 409; positioning supports are arranged on two sides of the folding integrated board fixing frame 3, the positioning supports are arranged on the outer side edge of the folding integrated board fixing frame 3 through positioning of the transverse pin 404, so that the folding integrated board fixing frame 3 and the positioning supports form a linkage mechanism capable of being folded in a cross mode, and the positioning and mounting device provides an accurate positioning and opening and closing linkage mechanism for the photovoltaic module single block 1.

A traction member is provided at one or both ends of the integrated unit.

Installing steel strands 403 on the positioning supports, connecting the steel strands 403 with the positioning supports on two sides, penetrating one end of each steel strand 403 through each segment rod 401 of each positioning support, fixing one end of each steel strand 403 with a first segment rod 401 or a last segment rod 401 through a cable anchorage device, connecting the other end of each steel strand 403 with a steel cable winding disc 407 of a traction part, and controlling the traction speed of the steel strands 403 by controlling the rotating speed of a rotating shaft 408 through a driving wheel 406 of the traction part so as to control an opening and closing linkage mechanism;

the photovoltaic module integrated board can be installed from the middle photovoltaic module single block 1 to two sides of the integrated unit, or from the first photovoltaic module single block 1 or the last photovoltaic module single block 1 to one side in sequence;

after fully deployed, four piercing fixing bolts 303 on each fixed frame member 301 are tightened;

the transverse pin 404 is opened to remove the positioning and mounting device for the next reuse;

and finishing the installation of the photovoltaic modules and the wiring of the inverter.

The mounting step can also comprise mounting the last photovoltaic module board, if the number of a string of photovoltaic module boards is odd, mounting a protective bottom board on the front and back surfaces before leaving a factory, and directly removing the protective bottom board on the front surface after the photovoltaic module boards are unfolded and mounted; if the number of the assembly boards in a string is even, the protective bottom board is only installed on the reverse side before the factory shipment.

In the specific installation process, when the number of the photovoltaic module single blocks connected in series is even, the photovoltaic module single blocks can be installed, as shown in fig. 4b, a first photovoltaic module single block 1 or a last photovoltaic module single block 1 is fixed with the support structure through a penetrating fixing bolt 303, a traction part is installed at the other end (the last photovoltaic module single block 1 or the first photovoltaic module single block 1), and the folded photovoltaic module single plate 1 is unfolded from one end. When the number of the photovoltaic module single blocks connected in series is odd, the photovoltaic module single blocks can be installed, as shown in fig. 5a, the photovoltaic module single block 1 in the middle is fixed with the supporting structure through the through fixing bolt 303, then the two ends of the integrated board (the first photovoltaic module single block and the last photovoltaic module single block) are respectively provided with the traction components, and the folded photovoltaic module single board 1 is unfolded from the two ends.

All the parts used in this document can be standard parts or common technologies, if not detailed, and can be purchased from the market, the specific connection mode of each part can be conventional means such as bolts, rivets and welding, etc., which are mature in the prior art, the machinery, parts and electrical equipment are conventional models in the prior art, and the circuit connection is conventional in the prior art, which is easy to be realized by those skilled in the art, and no specific description is given here.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.