TWI661666B - Trinity coupling plug-in type surface photovoltaic power generation unit and power generation system thereof - Google Patents

Abstract

The invention discloses a trinity coupling plug-in type surface photovoltaic power generation unit and a power generation system thereof. The photovoltaic power generation unit includes a walkway floating body and a connection floating body provided on a side wall of the walkway floating body. The connecting floating body is provided with a power generating element. The system is composed of a trinity coupling plug-in water surface photovoltaic power generation unit assembled vertically and horizontally, and a lateral floating assembly is assembled by a walkway floating body and another trinity coupling plug-in surface photovoltaic power generation unit, and the installation is completed by analogy. The aisle floating body connecting the floating body and another trinity coupling plug-in surface photovoltaic power generation unit is assembled, and the installation is completed by analogy. The last floating row of the trinity coupling plug-in surface photovoltaic power generation unit is separately connected to the aisle floating body. Fixed, that is, the installation of the entire power generation system is completed. This unit has the characteristics of simple structure, convenient installation and integrated use. The system assembly has the characteristics of simple structure and convenient installation.

Description

Trinity coupling plug-in type surface photovoltaic power generation unit and power generation system thereof

The invention relates to the field of photovoltaic power generation, in particular to a trinity coupled pluggable surface photovoltaic power generation unit with simple structure, convenient installation and low processing difficulty, and a power generation system thereof.

Photovoltaic power generation system refers to a photovoltaic power generation system that uses solar energy and uses special materials such as crystalline silicon plates and inverters and other electronic components to connect to the grid and transmit power to the grid. Photovoltaic power station is currently the country's most encouraged green power development energy project, and has made an important contribution to building a low-carbon society. However, terrestrial photovoltaic power plants occupy a large area and cannot reasonably allocate land resources. In China, there are a large number of idle water resources such as reservoirs, lakes and subsidence areas. The use of water space to construct water photovoltaic is an optimal use of resources, which can reasonably use land. Resources and increase power generation, while protecting the water environment and reducing floating dust.

The floating surface photovoltaic power station uses floating objects to support photovoltaic modules at a certain angle and then floats on the water to realize the power generation function. Because the surface floating photovoltaic power station is in a humid environment and structural components are easily corroded, in order to ensure the corrosion resistance and life of floating objects, high-density polyethylene floating bodies are generally used to provide buoyancy for surface photovoltaic power stations. The main production methods of water floating body include blow molding and rotomolding. However, due to the low production efficiency and poor sealing of rotomolding technology products, foam filling is generally required to maintain buoyancy, so there are fewer applications; Performance has a lot to do with its structural form. How to simplify the structural form while ensuring the function of the floating body is a problem that needs to be solved.

Photovoltaic power generation systems include not only solar cell modules, but also equipment such as combiner boxes, inverters, and cable trays. The direct current from the solar cell module is transmitted to the string inverter through the cable, and then the low-voltage alternating current after the inverter is transmitted to the combiner box through the cable, and then the cable is transmitted to the transformer after the confluence. In order to reduce the amount of cables and improve the economical efficiency of photovoltaic power stations, it is necessary to install and fix equipment such as inverters, combiner boxes and cable troughs on water surface floating bodies. Unlike photovoltaic modules, string-type inverters and combiner boxes and other electrical equipment have certain special requirements for installation on the water surface, such as height from the water surface and installation angle. At present, most of the existing floating body design forms only consider the fixed installation of photovoltaic modules. No special consideration is given to the fixing of electrical equipment such as combiner boxes, string inverters and cable troughs on the floating body. In practical applications, such floating bodies often use fixed structures of floating body photovoltaic modules to install and install electrical equipment such as inverters and combiner boxes, which not only does not meet the requirements for electrical equipment installation, but also fails to meet the mechanical properties. For the laying of water cables, at present, some surface photovoltaic power generation systems have designed special floating cables for water cables. However, special floating bodies require additional molds to be opened, which increases the cost of power station construction, and is not conducive to the photovoltaic power stations to achieve parity on-line access.

At present, many domestic and foreign surface photovoltaic power generation system design schemes have been proposed to solve the above problems, but from the perspective of the rationality and versatility of the floating structure, these design schemes still have many problems. For example, CN201520671619.5 discloses a carrier for a photovoltaic module on the water. The support platform at both ends of the floating body has a certain height difference to support the photovoltaic module at a certain angle. The lower part of the support platform has at least one opening for supporting the photovoltaic module. Install the connection support to fix the photovoltaic module. However, the patented high and low support platform is integrated with the main floating body. When the component inclination angle is large, the high support platform may be raised higher, and the local wall thickness may be too thin during the blow molding process, which may cause safety risks. The openings at the high and low support stands are recessed buckles, which makes it difficult for the product to be demolded. Strong demoulding may cause product damage or cracks. CN201520606080.5 discloses a floating body of a floating photovoltaic power station on the water. At least two groups of opposite grooves are provided on both sides of the floating body. Similar to the above patent, the design scheme of this patent also has the situation of uneven wall thickness of blow molding and strong demolding of the buckle during the production process, resulting in hidden quality problems. CN201520911191.7 discloses a photovoltaic floating body on the water surface, and two ends of the floating body are provided with embedded connection boards of different heights for installing photovoltaic components. This design solution may also have uneven wall thickness during the production process, and when the inclination angle is large, the length of the connecting plate is longer, and the problem of insufficient strength occurs. WO2012 / 139998A2, CN201620133888.0, CN201520618986.9, CN201510610856.5 and other patents disclose a water surface photovoltaic floating body. The components of the photovoltaic module are fixed using guide rails, bolts, and slots of different materials preset on both ends of the upper surface. , To avoid possible strong demolding problems, and also optimize the surface structure to prevent uneven wall thickness of blow molding. However, new problems have been introduced in the preset parts. First, the preset parts need to be made separately, and they must be placed in the mold in advance during the blow molding process, which may increase the product production cycle and reduce the product production efficiency. Second, preset parts and floating bodies. The body is not integrally formed, and the connection tightness between the two is reduced, which affects the service life of the product. Especially when the preset part is a metal material, the physical properties of the preset part and the floating body material are greatly different. Inconsistencies in material changes can cause preset parts to fail. CN201620418220.0 discloses a multi-ear water floating floating body, which achieves stronger connection stability by increasing the number of connecting ears of the floating body; the photovoltaic module is supported and clamped by a metal bracket. This patent is easy to install and the floating bodies are firmly connected, but there are the following problems: the left and right sides of the photovoltaic module supporting the main floating body are connected to different aisle floating bodies respectively. Deformation is not synchronized, causing damage to photovoltaic modules; too many types of floating bodies, higher mold opening costs, may reduce production efficiency; there is no fixed support between the long metal brackets of photovoltaic modules, which may cause the two brackets to deform and become asynchronous, causing photovoltaic modules damage. None of the above patents considers the universality of water surface installation and fixing of electrical equipment such as string inverters and combiner boxes, nor does it mention water cable laying schemes.

The purpose of the present invention is to provide a three-in-one coupled pluggable surface photovoltaic power generation unit and a power generation system for the shortcomings of the conventional technology. The unit has the characteristics of simple structure, convenient installation and multi-purpose integration. The system assembly has simple structure and installation. Convenient features.

In order to achieve the above object, the present invention provides a trinity coupling plug-in type surface photovoltaic power generation unit, which includes a walkway floating body and a connecting floating body disposed on a side wall of the aisle floating body. The connecting floating body is provided with a power generating element. The aisle floating body is a rectangular body, and two recessed surfaces are symmetrically arranged in the middle section of the two long sides of the aisle floating body; the recessed surface and the side surface of the aisle floating body are in a circular arc transition, and the recessed surface is provided with a middle A horizontal platform is provided with convex pieces on the outer edges of two horizontal platforms on one side of the walkway floating body. The convex pieces are provided with single-leaf plum blossom installation holes, and two horizontal platforms on the other side of the walkway floating body. Both single-leaf plum blossom installation holes are provided, and the outer edge of the horizontal platform on one side of the single-leaf plum blossom installation holes is provided with arc-shaped grooves, and two pairs of connecting ears with different heights are set at the four corners of the two ends of the walkway floating body.

The connecting floating body includes a middle square body and bosses provided in the middle of both sides of the square body, square platforms are arranged at both ends of the square body on one side of the square body, and an upper surface of the square platform is vertically provided with an end surface opening. A slot is provided with a slot for installation in the slot, a rectangular table is provided at both ends of the convex platform on the other side of the rectangular body, and a strip-shaped convex piece is horizontally disposed in the middle of the wall of the rectangular table, and the strip-shaped convex A single-leaf plum blossom hole is provided along the outer surface of the sheet, and two bolt holes are provided on the inner side of the single-leaf plum blossom hole, and a row of sunken grooves is vertically opened on the wall surface of both ends of the cube, and the sunken grooves are two An in-line rectangular connecting ear is provided symmetrically on the side, and a screw hole is formed in the middle of the in-line rectangular connecting ear.

Further, the width of the square platform is wider than that of the boss, and the upper surface of the square platform is flat with the boss, and the lower surface thereof is higher than the boss. The width of the rectangular platform is narrower than that of the boss, and the surface of the rectangular platform is provided. There are peaks.

Still further, the power generation element is a photovoltaic module, a combiner box, an inverter, a cable, or a grid panel.

Still further, one side of the photovoltaic module is fixed to the connection floating body by a bracket floating body, and the other side is fixed to the connecting floating body by a lower mounting member; the bracket floating body is a rectangular plate, and the bracket floating A horizontal groove is formed in the middle of the bottom of the body, and the horizontal groove cooperates with the inner wall of the bracket floating body at both ends to form a bayonet. The bottom surface of the bracket floating body at both ends of the horizontal groove is symmetrically provided with a bracket screw, and the top surface of the bracket floating body is vertical in the middle. A long fixed plate is provided, and a rectangular vertical platform is arranged on one side of the long fixed plate. The surface of the rectangular vertical platform coincides with the side of the support floating body. A plurality of small fixed plates are arranged on the long fixed plates at both ends of the rectangular vertical platform. hole.

Furthermore, a plurality of rib grooves are provided on both sides of the bracket floating body in a vertical and horizontal interval, and a plurality of oval ventilation holes are opened on the side of the bracket floating body between the longitudinal rib grooves.

Still further, upper fixing members for installing photovoltaic modules are provided on the long fixing plates at both ends of the rectangular vertical platform, and the upper fixing members include L-shaped vertical spokes that cooperate with and overlap the long fixing plates. A spoke hole is symmetrically provided on the vertical spoke plate, and the spoke hole is fixed with the bolt hole of the support floating body. An inclined plate is provided on the top of the L-shaped vertical spoke plate, and an upper assembly hole is provided on the upper surface of the inclined plate. The upper assembly hole is fixed in cooperation with the mounting hole of the photovoltaic module.

Still further, the lower mounting member includes an L-shaped fixing frame, and lower mounting holes are symmetrically provided on both sides of the bottom surface of the fixing frame, and the lower mounting holes are installed in cooperation with bolt holes on the connecting floating body. The top surface is provided with a vertically inclined support plate and a horizontally inclined lower mounting plate. The lower mounting plate is in a zigzag shape. The top surface of the lower mounting plate is provided with a lower assembly hole, and the lower assembly hole is installed with the photovoltaic module. The holes fit and fix.

Still further, the combiner box is fixed on the connecting floating body by installing a combiner box bracket, the combiner box bracket is composed of two mutually parallel bracket bases and a bracket beam symmetrically welded to the bracket base, and the bracket base includes Two L-shaped pedestal feet and a pedestal frame welded between the two pedestal feet, a small bolt hole is formed in the middle of the bottom surface of the base foot, and the small bolt holes are connected to both sides of the floating body by bolts The embedded rectangular connecting ears of the bracket are connected and fixed; the bracket beam is a horizontal strip-shaped flat steel and a mounting hole is symmetrically formed on the surface thereof for fixing and installing the combiner box.

Still further, the inverter is fixed on the connecting floating body by installing an inverter bracket; the inverter bracket includes two L-shaped long supports and two L-shaped short supports, and the L-shaped An inclined beam is provided between the top of the long support and the top of the L-shaped short support, a horizontal beam is provided between the two L-shaped long supports, and a horizontal beam is also provided between the two L-shaped short supports. The inclined beam is arranged above two horizontal beams; the inclination angle of the inclined beam is less than 90 ° (so as to meet the installation requirements of the inverter), and the bottom surfaces of the long and short supports are provided with support bolt holes. An installation hole is symmetrically provided on the inclined beam, and the inverter can be fixedly installed.

Furthermore, the cable is fixed on the connection floating body by installing a cable hoop. The cable hoop is a flat-shaped steel with a semi-circular arc in the middle of the top end, which can increase the contact area with the cable and reduce the hoop. Pressure on the cable; both ends of the flat-shaped flat steel are horizontal flat steel, and cable bolt holes are opened in the middle of the two ends of the cable hoop, and the cable bolt holes are connected to the embedded rectangular connecting ears on both sides of the connecting floating body.

Still further, the grid plate is fixed on the connection floating body by installing the grid plate buckle. The grid plate buckle is an inverted M shape, and a buckle bolt hole is opened on the middle plane. When in use, the M-shaped grid plate is buckled between the grids, and is connected to the embedded rectangular connecting ears on both sides of the floating body through the middle buckle bolt hole, thereby achieving the fixation of the grid plate.

Still further, the lower surface of the walkway floating body is provided with three concave surfaces, and the concave surfaces are in contact with the upper surface.

Furthermore, the upper surface of the aisle floating body is provided with anti-slip patterns, and the bottom surface of the aisle floating body is provided with a plurality of flow channels horizontally and vertically, which can reduce wave load and enhance the structural stability of the floating body. The middle of the body is provided with middle holes penetrating up and down, which reduces the quality of the floating body and enhances the structural strength of the floating body. The surface of the square platform is provided with a plurality of placement slots in the longitudinal direction. The bottom surface of the connecting floating body is provided with symmetrically opened horizontal and vertical directions. The channel is used as a flow channel and a ventilation channel to reduce wave load and wind load and enhance the strength of the floating structure. The upper surface placing groove can be used as a cable groove to place the cable to prevent the cable from falling into the water.

The invention further provides a trinity coupling plug-in type surface photovoltaic power generation system. The system is assembled from the trinity coupling plug-in type surface photovoltaic power generation unit horizontally and vertically. The aisle floating body assembly of the surface water photovoltaic power generation unit is assembled by analogy, and the installation is performed by analogy. The aisle floating body assembly connecting the floating body and another trinity plug-in water surface photovoltaic power generation unit is installed in the longitudinal direction, and the installation is completed by analogy. The connecting float of the trinity coupling plug-in surface photovoltaic power generation unit is separately fixed to the aisle floating body, that is, the installation of the entire power generation system is completed. The aisle floating body connection ear is connected to another trinity coupling plug-in surface photovoltaic power generation unit. The connecting ears of the aisle floating body are fixed by the side bolts and nuts.

As a preferred solution, the side-bolt screw includes a circular screw stage and a screw, a thread is provided at the lower end of the screw, and an anti-rotation protrusion is symmetrically arranged on the outer wall of the screw between the thread and the circular screw stage.

As a preferred solution, reinforcing fins are provided around the outer surface of the nut, and anti-loosening protrusions are provided on the nut contact plane.

Furthermore, when the aisle floating body and all the single-leaf plum blossom holes opened on the connecting floating body are fixedly connected to the side-fixing bolt screw, a single recess cooperates with the screw anti-rotation protrusion, which can be positioned and fixed for convenient installation. .

The beneficial effects of the present invention are:

(1) A trinity coupling plug-in surface photovoltaic power generation system provided by the patent of the present invention, under the premise of meeting the photovoltaic power system installation and power generation requirements, the electrical bracket can be fixedly installed by connecting the floating body to meet the electrical equipment on the water The requirements for installation and fixation can also be used as a cable channel to provide a floating body foundation for the installation and fixation of water cables, which solves the problem of irregular water installation of photovoltaic electrical equipment on the water surface.

(2) Aiming at the problem of uneven thickness of the floating body caused by the inclination angle requirement of the photovoltaic module in the prior art, the present invention uses a plug-in independent bracket to meet the requirements of the optimal inclination angle of the photovoltaic module and avoid the uneven thickness of the floating body. The production problems ensure the production quality and production efficiency of the floating body.

(3) A trinity coupling plug-in type surface photovoltaic power generation system provided by the patent of the present invention, which can use the existing connection floating body to realize the operation and maintenance channel function, electrical equipment installation function, cable laying function, etc., without the need to open additional molds, saving Cost of surface photovoltaic power plants.

(4) The solution for fixing a surface photovoltaic power generation system component provided by the present invention uses a component mounting hole to fix and support the photovoltaic component, and the connection is simple and reliable and the installation is convenient.

(5) The design solution of the surface photovoltaic power generation system provided by the present invention avoids the risk that the preset components of the surface photovoltaic floating body mentioned in the prior art cause partial components of the floating body to fail.

(6) In the floating body unit according to the present invention, the platforms connecting the two ends of the floating body are respectively placed and connected to the two side platforms of the floating body of the aisle, forming a strong local stability and rigidity, which ensures that the photovoltaic module is fixed. Firmness.

(7) The single-leaf plum blossom hole fixing side fixing bolt solution provided by the present invention can provide fixed support for the screw anti-rotation protrusion, and reduce the increase of stress concentration points caused by the traditional four-leaf plum blossom hole. At the same time, the mechanical structure of the floating body is enhanced.

In summary, the Trinity Coupling Pluggable Surface Photovoltaic Power Generation System uses existing connection floats to achieve important functions such as photovoltaic components, electrical equipment, cable laying and maintenance access for surface photovoltaic power stations, forming a simple structure, cheap installation, low cost and Water surface photovoltaic power generation system with good stability.

In order to better explain the present invention, the following describes the main content of the present invention in combination with specific embodiments, but the content of the present invention is not limited to the following embodiments.

Example 1

As shown in the figure, the power generation element is a trinity coupling plug-in type water surface photovoltaic power generation unit of photovoltaic module 3.a, which includes an aisle floating body 1 and a connecting floating body 2 disposed on a side wall of the aisle floating body 1 and connected to the floating body 2. Power generation elements are provided, the aisle floating body 1 is rectangular, and the two middle sides of the aisle floating body 1 are symmetrically provided with two recessed surfaces 1.1; the recessed surface 1.1 and the aisle floating body 1 have a circular arc transition and a recessed surface 1.1 A horizontal platform 1.2 is set in the middle, and two horizontal platforms 1.2 on one side of the aisle floating body 1 are provided with a convex piece 1.21 on the outer edge of the aisle 1.21, and a single-leaf plum blossom installation hole 1.22 is opened on the aisle 1.21. The two horizontal platforms 1.2 on the side are provided with single-leaf plum blossom installation holes 1.22 and the single-leaf plum blossom installation holes 1.22 on one side of the horizontal platform 1.2 are provided with arc-shaped grooves 1.23, and two pairs of heights are set at the four corners of the floating body at both ends of the aisle. Different connecting ears 1.3.

The lower surface of the walkway floating body 1 is provided with three concave surfaces 1.4, and the concave surfaces 1.4 are in contact with the upper surface.

The upper surface of the aisle floating body 1 has anti-skid patterns 1.5, and the bottom surface of the aisle floating body is provided with a plurality of flow channels 1.6, which can reduce the wave load and enhance the structural stability of the floating body. The middle hole 2.6 reduces the mass of the floating body and enhances the structural strength of the floating body. The surface of the square platform 2.3 is provided with a plurality of placement grooves 2.31 in the longitudinal direction, and the bottom surface of the connecting floating body 2 is provided with symmetrical grooves 2.7 in the longitudinal and horizontal directions. 2.7 As a flow trough and ventilation trough to reduce wave load and wind load and enhance the strength of the floating structure, the upper surface placement groove can be used as a cable groove to place the cable to prevent the cable from falling into the water.

The connecting floating body 2 includes a square body 2.1 in the middle and a boss 2.2 provided in the middle of both sides of the square body 2.1. The two sides of the boss 2.2 on the side of the square body 2.1 are provided with a square platform 2.3, and the upper surface of the square platform 2.3 is vertically arranged. A slot 2.11 with an open end is provided with a mounting slot 2.12 in the slot 2.11, a rectangular body 2.2 on the other side of the convex body 2.2 on the other side of the rectangular body 2.1 is provided with a rectangular platform 2.21, and a rectangular convex plate 2.22 is provided with a strip-shaped tab 2.22 horizontally in the middle. A single leaf plum blossom hole 2.23 is provided on the outer surface of the strip tab 2.22, and two bolt holes 2.24 are provided on the inner side of the single leaf plum blossom hole 2.23, and two rows of three sinking grooves 2.4 are vertically opened on the wall surface of the two ends of the cube 2.1. The recessed recess 2.4 is provided symmetrically with an embedded rectangular connecting ear 2.5 on both sides, and a screw hole 2.51 is opened in the middle of the embedded rectangular connecting ear 2.5.

The width of the square platform 2.3 is wider than that of the platform 2.2. The upper surface of the square platform 2.3 is flat with the platform 2.2 and its lower surface is higher than that of the platform 2.2. The width of the rectangular platform 2.21 is narrower than that of the platform 2.2. The surface of the rectangular platform 2.21 is provided with a peak platform. 2.211.

Photovoltaic module 3.a is fixed on the connecting floating body 2 by the bracket floating body 4 on one side, and is fixed on the connecting floating body 2 by the lower mounting member 6 on the other side; the bracket floating body 4 is a rectangular plate and the bracket floating body 4 A horizontal groove 4.1 is provided in the middle of the bottom, and the horizontal groove 4.1 cooperates with the inner wall of the bracket floating body 4 at both ends to form a bayonet 4.2. The bracket floating body 4 at both ends of the horizontal groove 4.1 is symmetrically provided with a bracket screw 4.3 on the bottom surface, and the middle of the top surface of the bracket floating body 4 A long fixed plate 4.4 is vertically arranged, and a rectangular vertical stand 4.41 is provided on the middle of one side of the long fixed plate 4.4. The surface of the rectangular vertical stand 4.41 coincides with the side of the support floating body 4. The long fixed plates 4.4 at both ends of the rectangular vertical stand 4.41 are provided. A plurality of small holes 4.42.

A plurality of stiffener grooves 4.6 are horizontally and vertically spaced apart from each other on the sides of the support floating body 4, and a plurality of elliptical ventilation holes 4.5 are opened on the side of the support floating body 4 between the longitudinal stiffener slots 4.6.

On the rectangular vertical platform 4.41, the long fixing plates 4.4 at both ends are provided with upper mounting members 5 for installing photovoltaic modules 3.a, and the upper mounting members 5 include L-shaped vertical spokes 5.1 matched with the long fixing plates 4.4, and the L-shaped vertical Straight spokes 5.1 are provided symmetrically with spoke holes 5.11. The spoke holes 5.11 are fixed with the bracket floating body bolt holes 4.42. The L-shaped vertical spoke 5.1 is provided with an inclined plate 5.2 at the top and an upper assembly hole at the upper surface of the inclined plate 5.2. 5.21, the upper assembly hole 5.21 fits with the mounting hole of photovoltaic module 3.a.

The lower mounting member 6 includes an L-shaped fixing frame 6.1, and the bottom surface of the L-shaped fixing frame 6.1 is symmetrically provided with lower mounting holes 6.11. The lower mounting holes 6.11 are installed in cooperation with the bolt holes 2.24 on the connecting floating body 2. The top surface of the fixing frame 6.1 is provided. There are a vertically inclined support plate 6.2 and a horizontally inclined lower mounting plate 6.3. The lower mounting plate 6.3 is in a zigzag shape. The top surface of the lower mounting plate 6.3 is provided with a lower assembly hole 6.31, a lower assembly hole 6.31 and the installation of the photovoltaic module 3.a. The holes fit and fix.

The above-mentioned power generation element is an assembly method of a trinity coupling plug-in type surface photovoltaic power generation unit of photovoltaic module 3.a:

(1) Fix the upper assembly hole 5.21 and the lower assembly hole 6.31 with the mounting holes of the photovoltaic module 3.a by bolts, and assemble the upper mounting member 5 and the lower mounting member 6 with the photovoltaic module 3.a.

(2) Place the square platform 2.3 on the side of the floating body 2 on the convex piece 1.21 of the aisle floating body 1, and install the slot 2.12 to match the single-leaf plum blossom mounting hole 1.22, and then the bracket screw 4.3 of the floating body 4 Fix it through the mounting slot 2.12 and the leaf plum mounting hole 1.22.

(3) The spoke plate hole 5.11 is fixed with the small hole 4.42. The upper mounting piece 5 is installed on the long fixing plate 4.4, the lower mounting plate 6.3 is buckled on the peak platform 2.211, and then the lower mounting hole 6.11 is fixed with the bolt hole 2.24. The mounting member 6 is fixed on the rectangular table 2.21 to form a photovoltaic power generation unit.

Example 2

As shown in the figure, the power generation element is a trinity coupling plug-in type surface water photovoltaic power generation unit of the combiner box 3.b, which is basically the same as the unit structure of Embodiment 1 except that:

The combiner box 3.b is fixed on the connecting floating body 2 by installing a combiner box bracket 7, which is composed of two mutually parallel bracket bases 7.1 and bracket cross beams 7.2 symmetrically welded to the bracket base 7.1. The bracket base 7.1 includes two L-shaped base feet 7.12 and a base frame 7.13 welded between the two base feet 7.12. The base feet 7.12 are provided with small bolt holes 7.11 in the middle of the bottom surface. The small bolt hole 7.11 is connected and fixed by bolts to the embedded rectangular connecting ears 2.5 on both sides of the floating body; the bracket beam 7.2 is a horizontal strip-shaped flat steel and its surface is symmetrically opened with mounting holes 7.21 for fixing the installation of the combiner box .

Method for assembling the above-mentioned trinity coupling plug-in type surface photovoltaic power generation unit:

(1) The aisle floating body 1 and the connecting floating body 2 are fixedly connected by the side bolts 11.

(2) Insert the base frame 7.13 into the embedded rectangular connecting ear 2.5, fix the small bolt hole 7.11 and the screw hole 2.51, and install the combiner bracket 7 on the connecting floating body 2.

(3) Fix the combiner box 3.b and the mounting hole 7.21 on the combiner box bracket 7 with bolts.

Example 3

The power generation element is a trinity coupling plug-in type surface water photovoltaic power generation unit of the inverter 3.c, which is basically the same as the unit structure of the embodiment 1, except that:

The inverter 3.c is fixed on the connection floating body 2 by installing an inverter bracket 8.

The inverter support 8 includes two L-shaped long supports 8.1 and two L-shaped short supports 8.2. An inclined beam 8.3 is provided between the top of the L-shaped long supports 8.1 and the top of the L-shaped short supports 8.2. A horizontal beam 8.4 is provided between the two L-shaped long supports 8.1, a horizontal beam 8.4 is also provided between the two L-shaped short supports 8.2, and the inclined beam 8.3 is provided between the two horizontal beams 8.4 Above; the angle of inclination of the inclined beam 8.3 is less than 90 °, the bottom of the L-shaped long support 8.1 and the L-shaped short support 8.2 is provided with a support bolt hole 8.5, and the inclined beam 8.3 is provided with a mounting hole 8.31 symmetrically. , Can be fixed installation inverter 3.c.

Method for assembling the above-mentioned trinity coupling plug-in type surface photovoltaic power generation unit:

(1) The aisle floating body 1 and the connecting floating body 2 are fixedly connected by the side bolts 11.

(2) Insert the L-shaped long support 8.1 and L-shaped short support 8.2 into the embedded rectangular connection ears 2.5 respectively, and the bolt holes 8.5 and 2.51 of the brackets are fixed, and the inverter bracket 8 is installed on the connecting floating body. 2 on.

(3) Fix the inverter 3.c with the mounting hole 8.31 on the inverter bracket by bolts.

Example 4

The power generating element is a trinity coupling plug-in type surface photovoltaic power generating unit with a cable 3.d, which is basically the same as the unit structure of the embodiment 1, except that:

The cable 3.d is fixed on the connection floating body 2 by installing a cable hoop 9 which is a flat-shaped steel bar with a semicircular arc 9.1 at the top and middle, which can increase the contact area with the cable 3.d. , To reduce the pressure of the cable 3.d by the hoop; the flat steel at both ends is a horizontal flat steel 9.2, and the cable hoop 9 is provided with cable bolt holes 9.21 in the middle of the surface, which can be connected to the embedded sides of the floating body 2 The rectangular connection ear 2.5 is connected.

Method for assembling the above-mentioned trinity coupling plug-in type surface photovoltaic power generation unit:

(1) The aisle floating body 1 and the connecting floating body 2 are fixedly connected by the side bolts 11.

(2) Insert horizontal flat steel 9.2 into the embedded rectangular connecting ear 2.5, fix the cable bolt hole 9.21 with the screw hole 2.51, and install the cable hoop 9 on the middle of the embedded rectangular connecting ear 2.5 on the connecting floating body 2.

(3) The cable hoop 9 is connected with the embedded rectangular connection ears 2.5 on both sides of the connection floating body 2 by bolts to fix and compact the cable 3.d.

Example 5

The power generation element is a trinity coupling plug-in type surface water photovoltaic power generation unit with a grid plate 3.e, which is basically the same as the unit structure of Embodiment 1 except that:

The grid plate 3.e is fixed on the connection floating body 2 by installing the grid plate buckle 10. The grid plate buckle 10 is an inverted M shape, and a buckle bolt hole 10.1 is opened on the middle plane. When in use, the M-shaped grid plate is buckled between the grids, and is connected with the embedded rectangular connection ears 2.5 on both sides of the floating body 2 through the middle buckle bolt hole 10.1, so as to realize the fixation of the grid plate.

Example 6

As shown in Figure 20, the trinity coupling plug-in surface photovoltaic power generation unit and the trinity coupling plug-in surface photovoltaic power generation system are composed of multiple rows of trinity coupling plug-in surface photovoltaic power generation units, which are horizontally composed of aisle floating bodies. 1 Assembled with the aisle floating body 1 of another trinity coupling plug-in surface photovoltaic power generation unit, and the installation is completed by analogy. There is a longitudinally connected floating body 2 that connects the aisle floating body 1 of the other trinity coupling plug-in surface photovoltaic power generation unit. , And the installation is completed by analogy in turn. The last horizontal row of the Trinity coupling plug-in surface photovoltaic power generation unit is connected to the floating body 2 separately, and the first batch of the first connecting floating body 2 is equipped with a confluence. Box, a cable 3.d is installed on one side of the combiner box, and the cable is fixed on the other connection floating body 2 of the row, and the grid plate 3.e is installed on the first connection floating body 2 of the other row, and other connections Power generating elements are installed on the floating bodies 2.

The connecting ear 1.3 of the aisle floating body 1 and the connecting ear 1.3 of the aisle floating body 1 of the plug-in type surface water photovoltaic power generation unit of the trinity are fixed by the side fixing bolt 11 and the nut 12.

The side-bolt screw 11 includes a circular screw table 11.1 and a screw 11.2. The lower end of the screw 11.2 is provided with a thread 11.21, and an anti-rotation protrusion is symmetrically provided on the outer wall of the screw 11.2 between the thread 11.21 and the circular screw table 11.1. 11.3.

Reinforcement fins 12.1 are provided around the outer surface of the nut 12, and anti-loosening protrusions 12.2 are provided on the nut contact plane.

Buoyancy verification calculation of plug-in assembled water surface photovoltaic power generation system:

In this embodiment, a polycrystalline silicon module with a power of 290 Wp and a size of 992 mm × 1978 mm is used. The calculation of its bearing capacity using 88 photovoltaic modules as a unit is as follows:

Total load of surface photovoltaic power generation system:

Photovoltaic module: 23Kg / block × 88 = 2024kg;

Self-weight of the floating body: aisle floating body: 6.6Kg / piece × 117 pieces = 772.2kg; connected floating body: 7.2kg / piece × 104 pieces = 748.8kg; bracket: 1.7kg / piece × 104 pieces = 176.8kg;

Installation and maintenance personnel: 8 persons × 75Kg / person = 600Kg;

If the safety factor of 2.0 is considered, the total load is about 8643.6kg.

Total buoyancy of surface photovoltaic power generation system:

According to the buoyancy formula, the aisle buoyant body can provide buoyancy of 90kg / piece, the connected buoyancy body can provide 109kg / piece, and the bracket buoyancy body can provide buoyancy 11kg / piece. Block × 104 blocks + 11kg / block * 104 blocks = 23010kg.

Therefore, this embodiment can fully ensure the buoyancy requirements of the surface photovoltaic power generation system.

Other parts that are not described in detail are conventional techniques. Although the above embodiments have described the present invention in detail, it is only a part of the embodiments of the present invention, but not all of them. People can also obtain other embodiments based on this embodiment without creativeness. These embodiments All belong to the protection scope of the present invention.

1: aisle floating body 1.1: recessed surface 1.2: horizontal platform 1.21: convex piece 1.22: single-leaf plum blossom mounting hole 1.23: curved groove 1.3: connecting ear 1.4: recessed surface 1.5: non-slip pattern 1.6: sink 2. connecting float Body 2.1: Square body 2.11: Slot 2.12: Mounting slot hole 2.2: Boss 2.21: Rectangular table 2.211: Peak table 2.22: Strip tab 2.23: Single leaf plum hole 2.24: Bolt hole 2.3: Square table 2.31: Placement slot 2.4: sunken groove 2.5: embedded rectangular connection ear 2.51: screw hole 2.6: middle hole 2.7: channel 3.a: photovoltaic module 3.b: combiner box 3.c: inverter 3.d: cable 3.e: grid plate 4: bracket floating body 4.1: horizontal groove 4.2: bayonet 4.3: bracket screw 4.4: long fixed plate 4.41: rectangular vertical stand 4.42: small hole 4.5: oval ventilation hole 4.6: rib groove 5 : Upper mounting piece 5.1: Vertical spoke 5.11: Spoke hole 5.2: Inclined plate 5.21: Upper assembly hole 6: Lower mounting piece 6.1: Fixing frame 6.11: Lower mounting hole 6.2: Support plate 6.3: Lower mounting plate 6.31: Lower Assembly hole 7: Combiner box bracket 7.1: Bracket base 7.11: Bolt hole 7.12: Base feet 7.13: Base frame 7.2: Support beam 7.21: Mounting hole 8: Inverter bracket 8.1: L-shaped long support 8.2: L-shaped short support 8.3: Inclined beam 8.31: Mounting hole 8.4: Horizontal beam 8.5: Support bolt hole 9: Cable hoop 9.1: Semi-circular arc 9.2: Horizontal flat steel 9.21: Cable bolt hole 10: Grid plate buckle 10.1: Buckle bolt hole 11: Side bolts 11.1: Round screw base 11.2: Screw 11.21: Thread 11.3: Anti-rotation protrusion 12: Nut 12.1: Reinforced fin 12.2: Anti-loosening protrusion

FIG. 1 is a perspective view of a trinity coupling plug-in type surface photovoltaic power generation unit in which the power generation unit is a photovoltaic module in Embodiment 1. FIG.

Fig. 2 is a perspective view of the power generating unit in Fig. 1 from another perspective.

Figure 3 is a perspective view of the aisle floating body.

Figure 4 is a bottom view of the aisle floating body.

Fig. 5 is a perspective view of a connected floating body.

Figure 6 is a bottom view of the connected floating body.

Fig. 7 is a perspective view of the stent floating body.

Figure 8 is an assembly diagram of the aisle floating body and the support floating body.

Figure 9 is a schematic view of the upper mounting member.

Figure 10 is a schematic diagram of the lower mounting member.

FIG. 11 is a perspective view of a trinity coupling plug-in type surface photovoltaic power generation unit in Embodiment 2. FIG.

Figure 12 is a schematic view of the combiner box bracket.

FIG. 13 is a perspective view of a trinity coupling plug-in type surface photovoltaic power generation unit in Embodiment 3. FIG.

Figure 14 is a schematic diagram of the inverter bracket.

FIG. 15 is a perspective view of a trinity coupling plug-in type surface photovoltaic power generation unit in Embodiment 4. FIG.

Figure 16 is a schematic diagram of a cable tie.

FIG. 17 is a perspective view of a trinity coupling plug-in type surface photovoltaic power generation unit in Embodiment 5. FIG.

Figure 18 is a schematic diagram of the grid plate buckle.

Fig. 19 is a schematic view of a side-bolt screw.

Figure 20 is a schematic diagram of a nut.

Fig. 21 is a schematic diagram of a trinity coupling plug-in type surface photovoltaic power generation system.

Claims (10)

A trinity coupling plug-in type surface photovoltaic power generation unit includes a walkway floating body (1) and a connecting floating body (2) arranged on a side wall of the aisle floating body (1), wherein the connecting floating body (2) is provided with Power generation element, the aisle floating body (1) is rectangular, and two middle sides of the long side of the aisle floating body (1) are symmetrically provided with two recessed surfaces (1.1); the recessed surface (1.1) and the aisle floating body (1) ) The side of the long side is a circular arc transition. A horizontal platform (1.2) is set in the middle of the recessed surface (1.1). The outer edge of the horizontal platform (1.2) on the side of the aisle floating body (1) is provided with convex pieces (1.21). ), The convex piece (1.21) is provided with a single-leaf plum blossom installation hole (1.22), and the two horizontal platforms (1.2) on the other side of the walkway floating body (1) are provided with the single-leaf plum blossom installation hole (1.22) And the outer edge of the horizontal platform (1.2) on the side of the single-leaf plum blossom installation hole (1.22) is provided with an arc-shaped groove (1.23), and two pairs of connecting ears (1.3) with different heights are provided at the four corners of the floating body of the aisle. The connecting floating body (2) includes a middle square body (2.1) and a boss (2.2) provided in the middle of both sides of the square body (2.1), and the boss (2.2) on one side of the square body (2.1) Square table at both ends (2.3) The upper surface of the square table (2.3) is vertically provided with a slot (2.11) with an open end. The slot (2.11) is provided with a mounting slot (2.12). The convex part on the other side of the square (2.1) A rectangular table (2.21) is provided at both ends of the table (2.2), and a strip projection (2.22) is horizontally provided in the middle of the table wall of the rectangular table (2.21). A single-leaf plum blossom is provided on the outer surface of the strip projection (2.22). Hole (2.23), two single bolt holes (2.24) are provided inside the single-leaf plum blossom hole (2.23), and a row of sunken grooves (2.4) is vertically opened on the wall surface at both ends of the rectangular body (2.1). An embedded rectangular connecting ear (2.5) is symmetrically arranged on both sides of the recessed groove (2.4), and a screw hole (2.51) is provided in the middle of the embedded rectangular connecting ear (2.5). As described in item 1 of the scope of patent application, the trinity coupling plug-in type surface photovoltaic power generation unit, wherein the width of the square platform (2.3) is wider than that of the boss (2.2), and the upper surface of the square platform (2.3) and the boss (2.2) flat, and the lower surface of the square platform is higher than the boss (2.2), the width of the rectangular platform (2.21) is narrower than that of the boss (2.2), and the surface of the rectangular platform (2.21) is provided with a peak platform (2.211) ). The trinity coupling pluggable surface photovoltaic power generation unit described in item 1 of the scope of patent application, wherein the power generation element is a photovoltaic module (3.a), a combiner box (3.b), an inverter (3.c), Cable (3.d) or grid plate (3.e). As described in item 3 of the scope of the patent application, a trinity coupling plug-in type surface photovoltaic power generation unit, wherein one side of the photovoltaic module (3.a) is fixed on the connection floating body (2) by a bracket floating body (4), and the other One side is fixed to the connecting floating body (2) by a lower mounting member (6); the supporting floating body (4) is a rectangular plate, and a horizontal groove (4.1) is provided in the middle of the bottom of the supporting floating body (4). The horizontal groove (4.1) cooperates with the inner wall of the bracket floating body (4) at both ends to form a bayonet (4.2), and the bottom surface of the bracket floating body (4) at both ends of the horizontal groove (4.1) is symmetrically provided with a bracket screw (4.3), A long fixed plate (4.4) is vertically arranged in the middle of the top surface of the support floating body (4), and a rectangular vertical platform (4.41) is arranged in the middle of one side of the long fixed plate (4.4). The surface of the rectangular vertical platform (4.41) and the The sides of the support floating body (4) are overlapped, and a plurality of small holes (4.42) are opened on the long fixed plate (4.4) at the two ends of the rectangular vertical platform (4.41); A plurality of rib grooves (4.6) are provided, and a plurality of oval ventilation holes (4.5) are opened on the side of the support floating body (4) between the plurality of rib grooves (4.6) in the longitudinal direction. The trinity coupling plug-in type surface photovoltaic power generation unit described in item 4 of the scope of patent application, wherein the long fixed plate (4.4) at both ends of the rectangular vertical stand (4.41) is provided for installing the photovoltaic module (3.a) The upper mounting member (5) includes an L-shaped vertical spoke (5.1) which cooperates with and overlaps the long fixed plate (4.4), and the L-shaped vertical spoke (5.1) is symmetrically opened. The spoke hole (5.11), the spoke hole (5.11) and the bracket floating body bolt hole (4.42) are fixed together. The L-shaped vertical spoke (5.1) is provided with an inclined plate (5.2) on the top, and the inclined plate (5.2 The upper surface is provided with an upper assembly hole (5.21), and the upper assembly hole (5.21) is fixedly fitted with the mounting hole of the photovoltaic module (3.a). As described in item 4 of the scope of the patent application, the trinity coupling plug-in surface photovoltaic power generation unit, wherein the lower mounting member (6) includes an L-shaped fixing frame (6.1), and the L-shaped fixing frame (6.1) is symmetrically opened on both sides of the bottom surface There is a lower mounting hole (6.11). The lower mounting hole (6.11) is installed in cooperation with the bolt hole (2.24) on the connecting floating body (2). The top surface of the L-shaped fixing frame (6.1) is provided with a vertically inclined The support plate (6.2) and the horizontally inclined lower mounting plate (6.3), the lower mounting plate (6.3) is in a zigzag shape, and the lower surface of the lower mounting plate (6.3) is provided with a lower assembly hole (6.31), and the lower assembly hole (6.31) 6.31) Cooperate with the mounting hole of the photovoltaic module (3.a). According to the trinity coupling plug-in type surface photovoltaic power generation unit described in item 3 of the scope of patent application, wherein the combiner box (3.b) is fixed on the connecting floating body (2) by installing a combiner box bracket (7), the The combiner box bracket (7) consists of two bracket bases (7.1) parallel to each other and a bracket beam (7.2) symmetrically welded to the two bracket bases (7.1). The bracket base (7.1) includes L-shaped two base feet (7.12) and the base frame (7.13) welded between the two base feet (7.12), the bottom of the base foot (7.12) is provided with a small bolt hole (7.11), and the small bolt hole (7.11) is borrowed Bolts are connected and fixed with the embedded rectangular connecting ears (2.5) on both sides of the connecting floating body (2); the bracket beam (7.2) is a horizontal strip-shaped flat steel and the mounting holes (7.21) are symmetrically formed on the surface; The inverter (3.c) is fixed on the connecting floating body (2) by installing an inverter bracket (8); the inverter bracket (8) includes two L-shaped long supports (8.1) and two L Type short support (8.2), an inclined beam (8.3) is provided between the top of the L-shaped long support (8.1) and the top of the L-shaped short support (8.2), one of the two L-shaped long supports (8.1) There are horizontal beams (8.4) between the two L-shaped short bearings (8.2 ) Is also provided between the horizontal beam (8.4), the inclined beam (8.3) is arranged above the two horizontal beams (8.4); the angle of inclination of the inclined beam (8.3) is less than 90 °, and the L-shaped long bearing (8.1 ) And the bottom of the L-shaped short support are provided with support bolt holes (8.5), and the inclined beam (8.3) is provided with the mounting holes (8.31) symmetrically. The cable (3.d) is fixed on the connecting floating body (2) by installing a cable hoop (9). The cable hoop (9) is a flat-shaped flat steel, and the middle of the top end is a semi-circular arc (9.1). The cable hoop (9) has cable bolt holes (9.21) in the middle of the two surfaces, which are connected to the embedded rectangular connection ears (2.5) on both sides of the connection floating body (2); the grid plate (3. e) It is fixed on the connecting floating body (2) by installing a grid plate buckle (10); the grid plate buckle (10) is an inverted M shape, and a buckle bolt hole (10.1) is opened on the middle plane. The grid plate buckle (10) is connected to the embedded rectangular connecting ears (2.5) on both sides of the connection floating body (2) through the buckle bolt hole (10.1) in the middle. The trinity coupling plug-in type water surface photovoltaic power generation unit described in item 1 of the scope of the patent application, wherein the lower surface of the walkway floating body (1) is provided with three recessed surfaces (1.4), and the three recessed surfaces (1.4) are in contact with the upper surface; The walkway floating body (1) has a non-slip pattern (1.5) on its upper surface, and the bottom surface of the walkway floating body (1) is provided with a plurality of water troughs (1.6) horizontally and vertically; A plurality of holes (2.31) are longitudinally provided on the surface of the square platform (2.3), and the bottom surface of the connecting floating body (2) is provided with channels (2.7) symmetrically opened in the horizontal and vertical directions. A trinity coupling plug-in water surface photovoltaic power generation system is composed of the trinity coupling plug-in water surface photovoltaic power generation unit described in item 1 of the scope of patent application, which is assembled horizontally and vertically, and the walkway floating body (1) and another The aisle floating body (1) of the trinity coupling plug-in surface photovoltaic power generation unit is assembled, and the installation is completed by analogy, and the aisle floating by the connecting float (2) and another trinity coupling pluggable surface photovoltaic power generation unit is longitudinally installed. The assembly (1) is assembled, and the installation is completed by analogy. The connection float (2) of the last horizontal trinity coupling plug-in surface photovoltaic power generation unit is separately fixed to the aisle float (1), which completes the entire power generation system. Installation, the connecting ear (1.3) of the aisle floating body (1) is coupled with another trinity plug-in water surface photovoltaic power generation unit, and the connecting ear (1.3) of the aisle floating body (1) is connected by a side bolt (11). It is fixed with the nut (12). As described in item 9 of the scope of the patent application, the trinity coupling plug-in type surface photovoltaic power generation system, wherein the side bolt (11) includes a circular screw table (11.1) and a screw (11.2), and the lower end of the screw (11.2) is provided There is a thread (11.21), an anti-rotation protrusion (11.3) is symmetrically arranged on the outer wall of the screw (11.2) between the thread (11.21) and the circular screw table (11.1); the outer surface of the nut (12) is arranged around There are reinforced fins (12.1), and the nut contact plane is provided with anti-loosening protrusions (12.2).