CN201898138U - Photovoltaic system and wind-shield wall thereof - Google Patents

Abstract

The utility model relates to the technical field of photovoltaics, in particular to a photovoltaic system. The utility model discloses a photovoltaic system windshield structure and a photovoltaic system. The photovoltaic system includes a photovoltaic module and the windshield structure. The photovoltaic module includes a photovoltaic cell laminate and a support frame. The support frame is installed on On the photovoltaic cell laminate, when the photovoltaic module is installed on the installation surface, the front side of the photovoltaic cell laminate is close to the installation surface and the rear side is away from the installation surface, and the windshield wall structure is close to the photovoltaic cell laminate. The rear side of the battery laminate is installed and basically blocks the space between the rear side of the photovoltaic module and the installation surface, wherein the windshield wall structure is fixed on at least two adjacent photovoltaic modules arranged side by side in the left and right directions. The relative positions of the at least two adjacent photovoltaic components are defined on the supporting frame of the component. The structure of the photovoltaic system windshield wall and the photovoltaic system of the utility model are simple in structure, light in weight, convenient and quick to install and easy to maintain, and are suitable for wide-ranging applications.

Description

Photovoltaic system and its windshield structure

technical field

The utility model relates to the technical field of solar photovoltaic applications, in particular to a photovoltaic system windshield wall structure and a photovoltaic system with the windshield wall structure.

Background technique

Nowadays, energy supply has entered an era of shortage in the world, and a large number of sustainable new energy sources have attracted widespread attention. Wherein the utilization of solar energy has been paid more and more attention by people. As an energy device, solar cells are being used more and more widely due to their unique functions compared to other energy devices and their outstanding advantages in cleanliness and environmental protection. Solar photovoltaic power generation is of great significance to alleviate today's energy crisis and improve the ecological environment. Solar cells are made of materials that can produce photovoltaic effects, such as silicon, gallium arsenide, indium selenium copper or other materials, so as to convert light energy into electrical energy by using photovoltaic effects. At present, photovoltaic modules composed of multiple solar cell units are widely used. For example, photovoltaic modules are used to build power generation systems, or used as curtain walls of buildings or installed on roofs of buildings.

The related three U.S. Patent Application Publications No. 2009/0320905A1, No. 2009/0320906A1 and No. 2009/0320907A1 assigned to the same company (SunPower Corp.) all disclose a kind of utility model suitable for installation on the roof of a building. Photovoltaic modules. The photovoltaic module includes a photovoltaic cell laminate and a frame assembled to the photovoltaic cell laminate and sealing the perimeter of the photovoltaic cell laminate. The frame is composed of opposite front frame members and rear frame members, and opposite first side frame members and second side frame members. These four frame members are formed independently, and these four frame members are assembled together by connecting and fitting with each other to form a frame surrounding the periphery of the photovoltaic cell laminate.

In addition, a first arm, a second arm, a third arm, and a fourth arm are formed on the frame. Wherein, the first arm and the third arm are respectively formed on opposite ends of the first side frame member, the second arm and the fourth arm are respectively formed on the opposite ends of the second side frame member, and the first arm and the first The second arm extends outwardly beyond the front frame member, and the third arm and the fourth arm extend outwardly beyond the rear frame member. The first arm and the second arm have the same configuration, the third arm and the fourth arm have the same configuration, and these four arms can make the photovoltaic module be inclined relative to a substantially flat surface. Mounting portions are formed on the four arms, respectively. The lateral spacing between the first arm and the second arm is smaller than the lateral spacing between the third arm and the fourth arm. When it is necessary to connect two adjacent photovoltaic components in the front-to-back direction, the first arm and the second arm of the first photovoltaic component are located between the third arm and the fourth arm of the second photovoltaic component, and the first arm and the third arm The mounting parts on the upper arm and the mounting parts on the second arm and the fourth arm are respectively aligned with each other, and then, through the cooperation of the male connector and the female connector, two adjacent photovoltaic modules are fixed end-to-end on each other. Together. In addition, when two adjacent photovoltaic components need to be connected side by side in the left and right direction, the first photovoltaic component and the second photovoltaic component are aligned with each other, wherein the second arm of the first photovoltaic component and the first arm of the second photovoltaic component , and the fourth arm of the first photovoltaic component and the third arm of the second photovoltaic component are respectively aligned, and then, similarly, through the cooperation of the male connector and the female connector, two adjacent photovoltaic components are fixed side by side together. However, the connection method of this kind of photovoltaic module is relatively complicated, and no matter whether it is connected in the front and rear direction or connected side by side, the connection of the photovoltaic module needs to be completed with the help of additional male and female connectors. This connection method increases the number of parts Quantity leads to an increase in cost, and at the same time, it makes the assembly process cumbersome, which is not conducive to the improvement of work efficiency; in addition, it will also cause inconvenience to the maintenance of the photovoltaic system.

In addition, the use of the above-mentioned frame structure for photovoltaic modules will increase the production cost and weight of the entire photovoltaic module. For applications with limited load-bearing on the roof of the building, the use of photovoltaic modules will be limited, which is not conducive to its wide-scale promotion and application.

Therefore, there is an urgent need to propose an improved photovoltaic system to overcome the technical problems in the prior art, so as to reduce the cost of the photovoltaic system and facilitate installation and maintenance.

Utility model content

The main technical problem to be solved by the utility model is to provide a windshield wall structure of a photovoltaic system and a photovoltaic system thereof, which have a simple structure, quick and convenient installation and maintenance.

In order to solve the above technical problems, one aspect of the present invention provides a photovoltaic system, which includes a photovoltaic module and a windshield structure, the photovoltaic module includes a photovoltaic cell laminate and a support frame, and the support frame is installed on the On the photovoltaic cell laminate, when the photovoltaic module is installed on the installation surface, the front side of the photovoltaic cell laminate is close to the installation surface and the rear side is away from the installation surface, and the windshield structure is close to the photovoltaic cell layer The rear side of the pressure piece is installed and basically blocks the space between the rear side of the photovoltaic module and the installation surface, wherein the windshield structure defines the relative position of the at least two adjacent photovoltaic modules and is fixed On the support frames of at least two adjacent photovoltaic modules side by side in the left and right directions.

Another aspect of the utility model provides a windshield structure for a photovoltaic system, which is used for connecting photovoltaic modules, and the photovoltaic module includes a photovoltaic cell laminate and a support frame installed on the photovoltaic cell laminate. When the photovoltaic module is installed on the installation surface, the front side of the photovoltaic cell laminate is close to the installation surface and the rear side is away from the installation surface, the windshield wall structure is installed close to the rear side of the photovoltaic cell laminate, and Basically shielding the space between the rear side of the photovoltaic module and the installation surface, wherein the windshield structure defines the relative position of the at least two adjacent photovoltaic modules and fixes at least two phases side by side in the left and right direction on the support frame adjacent to the photovoltaic module.

The utility model skillfully utilizes the windshield wall structure, and through the mutual cooperation and mutual locking between the windshield wall structure and the support frames of at least two adjacent photovoltaic modules arranged side by side in the left and right directions, at least two adjacent photovoltaic components can be realized. The components are connected side by side in the left and right directions, and no other additional connector structures are needed. Moreover, in the assembly process of the actual photovoltaic system, it is usually necessary to install a windshield wall. The windshield structure of the utility model has dual functions. The influence of the wind force keeps the installation surface stable, so that there is no need to install an additional windshield at this position of the photovoltaic module; secondly, it serves as a connector structure for connecting adjacent photovoltaic modules side by side, so that the side-by-side connection can be omitted. The additional connector components save the number of components and are beneficial to the cost reduction of the photovoltaic system. Moreover, the side-by-side connection method of the utility model has the advantages of simplicity and speed, which greatly saves the assembly process of the photovoltaic system and improves work efficiency. .

Other aspects and features of the present invention will become apparent from the following detailed description with reference to the accompanying drawings. It should be understood, however, that this drawing is designed for purposes of illustration only, and not as a limitation of the scope of the invention, since reference should be made to the appended claims. It should also be understood that, unless otherwise indicated, the drawings are not necessarily drawn to scale and are merely intended to conceptually illustrate the structures and processes described herein.

Description of drawings

Fig. 1 is a partially exploded perspective view of a photovoltaic system according to an embodiment of the present invention.

Fig. 2 is a perspective view of the photovoltaic module in Fig. 1 .

Fig. 3 is a side view of the photovoltaic module in Fig. 2 .

Fig. 4 is a sectional view along line A-A in Fig. 2 .

FIG. 5 is a perspective view of the support frame in FIG. 2 .

Figure 6 is a perspective view of the support frame similar to Figure 5 but showing another perspective.

Fig. 7 and Fig. 8 are partial enlarged schematic diagrams before and after assembly of photovoltaic modules connected in the front and rear directions according to a specific embodiment of the present invention.

Fig. 9 is a schematic diagram of adding pressing blocks to a photovoltaic module according to the present invention.

Fig. 10 is a perspective view of another viewing angle of the pressing block in Fig. 9 .

Fig. 11 is a perspective view of another angle of the middle windshield wall shown in Fig. 1 .

Fig. 12 is a perspective view from another angle of the outer windshield wall shown in Fig. 1 .

Fig. 13 is a schematic top view of two photovoltaic modules stacked according to a specific embodiment of the present invention.

Fig. 14 is a side view of the photovoltaic modules in Fig. 13 in a stacked state.

Fig. 15 is a sectional view along line B-B in Fig. 13 .

16 and 17 are enlarged views of partial regions D and E in FIG. 15, respectively.

Fig. 18 is a sectional view along line C-C in Fig. 13 .

Detailed ways

In order to make the above purpose, features and advantages of the present utility model more obvious and understandable, the specific implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, a photovoltaic system 100 according to an embodiment of the present invention is used to be installed on an installation surface (not shown) of a building, such as a roof of a building, which includes a plurality of photovoltaic modules 200 and installed on a photovoltaic The middle windshield wall 3 , the outer windshield wall 4 and the bottom side windshield wall 5 on the assembly 200 . Among them, the middle windshield 3 and the outer windshield 4 constitute the photovoltaic system windshield structure of the utility model, because the photovoltaic system windshield structure composed of the middle windshield 3 and the outer windshield 4 is installed on the photovoltaic module 200, so the windshield structure of the photovoltaic system of the present invention is also called the rear windshield. A plurality of photovoltaic modules 200 are arranged in rows and columns to form an array. In this specific embodiment, only four photovoltaic modules 200 arranged in two rows and two columns, that is, the first photovoltaic module 200a, the second photovoltaic module 200b, and the third photovoltaic module The component 200c and the fourth photovoltaic component 200d are illustrated as examples, but are not intended to limit the utility model. In fact, the photovoltaic system 100 of the utility model can be selected and arranged in any array according to the size of the installation surface of the actual building A plurality of photovoltaic modules 200 in the form.

As shown in FIG. 2 , the photovoltaic assembly 200 includes a photovoltaic cell laminate 1 and a support frame 2 installed on the photovoltaic cell laminate 1, the support frame 2 is used to be installed on the installation surface of a building, and the support frame 2 Installed on the back of photovoltaic cell laminate 1. Preferably, the photovoltaic module 200 includes at least two support frames 2 , both of which are elongated in the front-rear direction and arranged side by side at intervals in the left-right direction on the back of the photovoltaic cell laminate 1 . In this specific embodiment, a pair of support frames 2 are arranged at intervals on the back of the photovoltaic cell laminate 1 .

The photovoltaic cell laminate 1 of the present utility model is formed by laminating and encapsulating the front glass substrate, packaging material, multiple solar cells, and the back plate and then performing edge sealing, and the edge sealing can be achieved by sealant and/or This is achieved by installing a sealed frame around it. Wherein the back sheet of the photovoltaic cell laminate may also be a glass substrate. When the frame is used for sealing, since the frame of the photovoltaic cell laminate of the present invention only acts as a seal, compared with the traditional photovoltaic cell assembly, the structure of the frame of the photovoltaic cell laminate 1 of the present invention is simple and does not require It is designed as a fixed component when the photovoltaic system is installed, so the weight of the frame is very small, thereby greatly reducing the weight of the photovoltaic cell laminate 1, and it is easier to meet the requirements of the relevant standards for the maximum weight of roof photovoltaic modules.

Orientation terms mentioned in this patent application documents, such as "front", "rear", "top", "bottom", "upper", "lower", "left", "right", etc., are only In order to facilitate the description of the relative positional relationship between the various components, it is not intended to limit the absolute orientation of the relevant components. Referring to Figure 2, the positive direction of the x-axis is the front, and the negative direction is the rear; the positive direction of the y-axis is the left, and the negative direction is the right; the positive direction of the z-axis is upward, and the negative direction is downward.

Referring to FIGS. 3 to 6 , the support frame 2 includes a support portion 20 , a first connection portion 22 , a transition portion 24 and a second connection portion 26 . The support part 20 is preferably fixed to the back of the photovoltaic cell laminate 1 by bonding, for supporting the photovoltaic cell laminate 1 . The side of the support part 20 bonded to the photovoltaic cell laminate 1 has a glue-receiving groove 202 . The first connecting portion 22 extends forward from the front end of the supporting portion 20 , and the first connecting portion 22 is disposed close to the front side of the photovoltaic cell laminate 1 . The transition part 24 extends backward from the rear end of the support part 20 for connecting the support part 20 and the second connection part 26 . The second connecting portion 26 continues to extend backward from the transition portion 24 , and the second connecting portion 26 is disposed close to the rear side of the photovoltaic cell laminate. In this embodiment, the first connection portion 22 extends from the first end of the support portion 20 beyond the front side of the photovoltaic cell laminate 1 , and the transition portion 24 and the second connection portion 26 extend from the opposite second end of the support portion 20 . Extends beyond the rear side of the photovoltaic cell laminate 1 .

When the photovoltaic module 200 is installed on the installation surface of the building, the first connection part 22 and the second connection part 26 are placed on the installation surface to cooperate with the installation surface, and an angle is set between the support part 20 and the installation surface, thereby After the photovoltaic cell laminate 1 is fixed and installed, it also forms an angle with the installation surface. This inclined configuration of the photovoltaic cell laminate 1 is more conducive to the collection of solar energy by the photovoltaic cell laminate 1, and better converts solar energy into electrical energy. , and can effectively use the area of the installation surface such as the roof. The angle setting between the photovoltaic cell laminate 1 and the installation surface needs to comprehensively consider the conversion of electric energy and the factors of effective use of the installation area, and at the same time ensure that the mutual shading between the solar cell modules will not be caused when the sunlight is irradiated, the preferred The angle range is 5-20°. In this embodiment, the first connecting portion 22 and the second connecting portion 26 are located on the same horizontal plane.

Please mainly refer to FIG. 5 to FIG. 8. When a plurality of photovoltaic modules 200 are installed end-to-end (ie, in the front-to-back direction) on the installation surface, the first connection part 22 of one photovoltaic module 200 is connected to another adjacent photovoltaic module. The second connecting portion 26 of the components 200 is engaged so as to maintain the relative position of one photovoltaic component 200 and another adjacent photovoltaic component 200 . The first connecting part 22 and the second connecting part 26 of the present invention are designed as a structure that can be locked and matched with each other. In a specific embodiment of the present utility model, both the first connecting portion 22 and the second connecting portion 26 are frame-shaped, and the size of the first connecting portion 22 is greater than the size of the second connecting portion 26, and the first connecting portion 22 can The cover is sleeved on the second connecting portion 26 . The first connecting portion 22 is provided with a first fixing portion 222 , and the second connecting portion 26 is provided with a second fixing portion 262 at a position corresponding to the first fixing portion 222 of the first connecting portion 22 . Preferably, the first connecting part 22 includes at least two first fixing parts 222, the second connecting part 26 includes at least a number of second fixing parts 262 corresponding to the first fixing parts 222, and the first fixing parts 222 are respectively arranged on the first fixing part 222. On opposite sides of the connecting portion 22 , the second fixing portions 262 are respectively disposed on opposite sides of the second connecting portion 26 . Wherein, at least one of the first fixing part 222 and the second fixing part 262 is an elastic structure, when the first connecting part 22 of one photovoltaic module 200 is engaged with the second connecting part 262 of another adjacent photovoltaic module 200 Firstly, the elastic structure is elastically deformed by being pressed by the opposite one of the first fixing portion 222 and the second fixing portion 262 , and then the elastic structure loses the pressing force and rebounds to lock. The first fixing part 222 and the second fixing part 262 are matched and locked together so as to define the relative positions of the engaged first connecting part 22 and the second connecting part 26 . In this embodiment, the first fixing part 222 is configured as a protrusion protruding inward from the lower edge of the opening on both side walls, and the second fixing part 262 is configured as an elastic piece that is deflected outward from the two side walls, and the elastic piece can be stuck under the opening. on the protrusion of the edge. A protruding portion 224 protruding downward is disposed on a top side of the first connecting portion 22 , and a first mounting hole 226 is formed through the protruding portion 224 . The second connecting portion 26 is provided with a through second mounting hole 266 at a position corresponding to the convex portion 224 . When the first connecting portion 22 of one photovoltaic assembly 200 is engaged with the second connecting portion 26 of another adjacent photovoltaic assembly 200, the convex portion 224 of the first connecting portion 22 of one photovoltaic assembly 200 is inserted into the adjacent another Inside the second mounting hole 266 of the photovoltaic module 200 , and the positions of the first mounting hole 226 and the second mounting hole 266 are aligned with each other.

The utility model respectively designs the first connecting part 22 and the second connecting part 26 on the support frame 2 of the photovoltaic module 200 that can cooperate with each other and can be locked to each other. Through the first connecting part 22 and the second connecting part 26 of two adjacent photovoltaic modules The cooperation of the second connecting portion 26 realizes the connection between two adjacent photovoltaic modules 200 in the front-back direction without resorting to other additional connector structures. 7 and 8, when it is necessary to connect two adjacent photovoltaic components 200 to each other in the front and back direction, the first connection part 22 of the support frame 2 of one photovoltaic component 200 covers the other adjacent photovoltaic component 200. On the second connection part 26 of the support frame 2, wherein, the convex part 224 of the first connection part 22 is accommodated in the second installation hole 266 of the second connection part 26, and the second installation hole 266 and the first installation hole 226 The positions are aligned with each other, and the second fixing part 262 of the second connecting part 26 can be stuck in the first fixing part 222 of the first connecting part 22, so that the first connecting part 22 and the second connecting part 26 are mutually locked, and then Realize the connection between two adjacent photovoltaic modules 200 in the front and back directions. For the connection of more photovoltaic modules 200 in the front and back direction, a similar connection method as above can be used for connection. This end-to-end connection method is simple and fast, which greatly simplifies the assembly process of the photovoltaic system 100 and improves work efficiency.

Above, the first connection part 22 and the second connection part 26 are both frame-shaped as an example for description, but the utility model is not limited thereto, and the first connection part 22 and the second connection part 26 of the utility model can also be Adopting other structures that can lock and cooperate with each other does not depart from the essence of the present utility model. Moreover, in other embodiments of the present utility model, the size of the second connecting portion 26 may also be larger than the size of the first connecting portion 22, so that the second connecting portion 26 covers the first connecting portion 22, all of which can realize the utility model. new purpose. In yet another embodiment of the present invention, the first fixing part 222 of the first connecting part 22 and the second fixing part 262 of the second connecting part 26 can also be arranged upside down or adopt other locking methods. All these equivalent replacements and modifications are within the protection scope of the present utility model.

Referring to Fig. 9 and Fig. 10, in other embodiments of the present utility model, optionally, according to the local climatic conditions of installation, in order to increase the reliability of the photovoltaic module on the installation surface such as the roof, the photovoltaic system 100 may also include A plurality of compacts 6. The briquetting block 6 can be pressed against the first connecting portion 22 and the second connecting portion 26 after being fixedly connected to each other, and the first mounting hole 226 and/or the second connecting portion 26 corresponding to the first connecting portion 22 on the briquetting block 6 A mounting hole 60 is provided at the position of the second mounting hole 266 .

When a plurality of photovoltaic modules 200 are installed on the installation surface and the first connecting portion 22 of one photovoltaic module is engaged with the second connecting portion 26 of another adjacent photovoltaic module, for the photovoltaic modules connected in the front-back direction, Since the first connecting portion 22 of one photovoltaic module covers the second connecting portion 26 of another adjacent photovoltaic module, the pin 64 passes through the mounting hole 60 of the pressing block 6 and the second connecting portion 22 of the first connecting portion 22 sequentially. A mounting hole 226 and a second mounting hole 266 of the second connecting portion 26 are used to fix the pressing block 6 at the joint of the first connecting portion 22 and the second connecting portion 26 . For the photovoltaic module 200 located at one of the outermost ends, the pin 64 passes through the installation hole 60 of the pressure block 6 and the first installation hole 226 of the first connection part 22 in sequence, so that the pressure block 6 is fixed on the first connection. Part 22. For the photovoltaic module 200 located at the other outermost end, the pin 64 passes through the installation hole 60 of the pressure block 6 and the second installation hole 266 of the second connection part 26 in sequence, so that the pressure block 6 is fixed on the second connection part 26 on. Preferably, considering that the pressing block 6 can be better supported on the surface of the building, a plurality of support columns 62 for supporting on the installation surface of the building may also be provided on the bottom surface of the pressing block 6 .

During the actual assembly process of the photovoltaic system 100 , in order to avoid the influence of the wind on the fixed stability of the entire photovoltaic system, it is usually necessary to install a windshield to change the flow direction of the wind. Referring to FIG. 1 , when the photovoltaic module 200 is installed on the installation surface, the rear windshield walls 3 and 4 are installed close to the rear side of the photovoltaic cell laminate 1 and basically shield the space between the rear side of the photovoltaic module 200 and the installation surface. Space. Considering the problem of heat dissipation of the photovoltaic module, the rear windshield walls 3 and 4 are provided with a plurality of openings 30 and 40 . The openings 30 , 40 may be circular or polygonal through holes; another preferred method may be holes with a louver structure, which can not only achieve the effect of cooling the photovoltaic module 200 , but also not affect the function of windshielding. The rear windshield walls 3 and 4 are fixed on the support frame 2 of at least two photovoltaic modules 200 side by side in the left and right direction, and define the relative positions of at least two adjacent photovoltaic modules 200 in the left and right direction. Specifically, the rear windshield walls 3 and 4 are fixed on the transition portion 24 of the supporting frame 2 of the adjacent photovoltaic modules 200, so that the adjacent photovoltaic modules 200 are connected side by side.

Referring to FIG. 1 and FIG. 11 to FIG. 12 , the rear windshield walls 3 and 4 include a middle windshield wall 3 and an outer windshield wall 4 . The length of the middle windshield 3 is substantially equal to the length of the rear side of a photovoltaic cell laminate 1 , which is used to connect two left and right adjacent photovoltaic modules 200 side by side. The middle windshield 3 is provided with a pair of slots 32 corresponding to the positions of adjacent transition parts 24 of two photovoltaic modules 200 connected side by side, and the transition parts 24 can be accommodated in the slots 32 . The transition portion 24 is provided with a positioning hole 242 and a plurality of fixing holes 244 (refer to FIG. 5 ). A plurality of claws 36 protrude from positions corresponding to the fixing holes 244 in the slot 32 of the middle windshield 3 , and the plurality of claws 36 can be buckled in the plurality of fixing holes 244 respectively. Positioning posts 34 protrude from positions corresponding to the positioning holes 242 in the middle windshield wall 3 , and the positioning posts 34 can be positioned in the positioning holes 242 . A relief portion 246 is provided on the top side of the junction of the support portion 20 and the transition portion 24 , and the relief portion 246 is used to accommodate the side of the middle windshield wall 3 .

1, when it is necessary to connect two adjacent photovoltaic components 200, such as the first photovoltaic component 200a and the third photovoltaic component 200c side by side, the transition part 24 of the support part 20 of the first photovoltaic component 200a and The transition parts 24 of the supporting part 20 of the third photovoltaic module 200c are respectively accommodated in a pair of slots 32 of the same middle windshield 3, and the positioning columns 34 of the middle windshield 3 are first positioned in the positioning holes 242, so that The middle windshield 3 is first positioned on the first photovoltaic module 200a and the third photovoltaic module 200c, and then the claw 36 of the middle windshield 3 is locked in the fixing hole of the transition part 24, and the side of the middle windshield 3 The side is clamped in the relief part 246 of the support frame 2, so that the middle windshield wall 3 is fixed on two adjacent transition parts 24 of the first photovoltaic module 200a and the third photovoltaic module 200c which are connected side by side. Therefore, the adjacent first photovoltaic module 200 a and the third photovoltaic module 200 c are connected side by side through the intermediate windshield wall 3 . For the side-by-side connection between the second photovoltaic component 200b and the fourth photovoltaic component 200d, or even to connect more photovoltaic components 200 side by side, the above-mentioned similar connection methods can be used for connection. Referring to FIG. 1 , the photovoltaic modules 200 can be arranged in a matrix form through the aforementioned front-rear connection and side-by-side connection of the photovoltaic modules 200 .

The utility model skillfully utilizes the middle windshield wall 3, and through the mutual cooperation and mutual locking between the middle windshield wall 3 and the two adjacent transition parts 24 of two adjacent photovoltaic modules 200, any number of photovoltaic components can be realized. The components 200 are connected side by side in the left-right direction without resorting to other additional connector structures. Therefore, the side-by-side connection in the left and right directions of the present invention has the advantages of simplicity and quickness, which greatly saves the assembly process and the number of components of the photovoltaic system 100 and improves work efficiency. The intermediate windshield wall 3 of the present utility model has dual functions, that is, on the one hand, it maintains the usual function as a windshield wall, and reduces the influence of the wind force on the photovoltaic system array, thereby stably maintaining the photovoltaic system array on the installation surface; On the one hand, it acts as a connector structure for parallel connection of photovoltaic modules 200 , so that additional connector components during parallel connection can be omitted, which saves the number of components and is beneficial to the cost reduction of the photovoltaic system 100 .

The outer windshield 4 has a configuration similar to half of the middle windshield 3 . With reference to FIG. 12 , the outer windshield 4 is provided with a slot 42 corresponding to the position of the transition part 24 of the support frame of the photovoltaic module 200, and the outer windshield 4 is fixed in the slot 42 corresponding to the transition part 24. A plurality of claws 46 protrude from the hole 244 , and a positioning post 44 protrudes from a position corresponding to the positioning hole 242 of the transition portion 24 . 1, an outer windshield 4 is installed on the outer end of the rear side of the photovoltaic module 200 at the outermost end, wherein the transition part 24 of the support part 20 of the photovoltaic module 200 at the outermost end is accommodated in the outer windshield. In the slot 42 of the windshield 4, the positioning column 44 of the outer windshield 4 is positioned in the positioning hole 242 of the transition part 24, so that the outer windshield 4 is first positioned on the photovoltaic module 200 at the outermost end, and then, The claws 46 of the outer windshield 4 are locked in the fixing holes 244 of the transition part 24 , so that the outer windshield 4 is fixed on the outermost transition part 24 of the outermost photovoltaic module 200 .

13 to 18, when multiple photovoltaic modules 200 are stacked or transported, the supporting frame 2 of one photovoltaic module 200 can be supported on the supporting frame 2 of another photovoltaic module 200, and each photovoltaic module The photovoltaic cell laminate 1 of 200 is not squeezed by other stacked photovoltaic modules 200 .

Referring to Figure 16, Figure 17 and Figure 18, Figure 16 and Figure 17 are respectively enlarged views of partial areas D and E in Figure 15, and Figure 18 is a cross-sectional view along line C-C in Figure 13. The support frame 2 includes a first upper limit portion 227, a first lower limit portion 228, a second upper limit portion 247 and a second lower limit portion 248, and the first upper limit portion 227 and the first lower limit portion 228 exceed the photovoltaic cell The front side of the laminate 1 is set, the second upper limit portion 247 and the second lower limit portion 248 are set beyond the rear side of the photovoltaic cell laminate 1, and the first upper limit portion 227 and the first lower limit The portion 247 is close to the intersection of the first connecting portion 22 and the support portion 20 , and the second upper limit portion 228 and the second lower limit portion 248 are close to the intersection of the second connecting portion 26 and the transition portion 24 . The first upper limit portion 227 and the second upper limit portion 247 are arranged on the top surface of the support frame 2, and the first upper limit portion 227 has a rearward limiting surface, and the second upper limit portion 247 has a forward limiting surface ; The first lower limit portion 228 and the second lower limit portion 248 are arranged on the bottom surface of the support frame 2, and the first lower limit portion 228 is provided with a forward limit surface, and the second lower limit portion 248 has a rearward limit surface. In this embodiment, the first upper limit portion 227 and the second upper limit portion 247 are embodied as limit protrusions protruding upward on the top surface, and the first lower limit portion 228 and the second lower limit portion 248 are embodied as limit bumps on the bottom surface. Reinforcing ribs extending left and right.

17 and 18, when a plurality of photovoltaic components 200 are stacked, the first upper limit portion 227 of one photovoltaic component 200 abuts against the first lower limit of another adjacent photovoltaic component 200 228, specifically, the limiting surface of the first upper limiting portion 227 of one photovoltaic assembly 200 abuts against the limiting surface of the first lower limiting portion 228 of another adjacent photovoltaic assembly 200, and, one photovoltaic assembly 200 The second upper limit portion 247 of one photovoltaic component 200 abuts against the second lower limit portion 248 of another photovoltaic component 200, specifically, the limit surface of the second upper limit portion 247 of one photovoltaic component 200 abuts against another adjacent photovoltaic component 200 The limiting surface of the second lower limiting portion 248 of the second lower limiting portion 248 limits the relative movement of one photovoltaic module 200 relative to another adjacent photovoltaic module 200 in the front-to-back direction, that is, the end-to-end direction, so as to facilitate the transportation of the photovoltaic module 200 .

Referring particularly to Fig. 18, the support frame 2 also includes a third upper limit portion 249a and a third lower limit portion 249b. When a plurality of photovoltaic modules 200 are stacked, the third upper limit portion 249a of one photovoltaic module 200 will The third lower limit portion 249b of the other photovoltaic assembly 200 cooperates, thereby restricting the movement of one photovoltaic assembly 200 relative to the other adjacent photovoltaic assembly 200 in the left and right direction. In this specific embodiment, the left and right sides of the transition part 24 are in the shape of a narrow top and a wide bottom. retaining wall. When the third upper limit portion 249a of one photovoltaic assembly 200 cooperates with the third lower limit portion 249b of another adjacent photovoltaic assembly 200, the outer sides of the upper parts of the left and right side walls of the transition portion 24 (that is, the upper retaining wall) and the transition The inner sides of the lower parts of the left and right side walls of the part 24 (i.e., the lower barrier walls) cooperate, so that the photovoltaic modules 200 on the upper side can protect the photovoltaic modules 200 on the lower side, and can prevent one photovoltaic module 200 from The relative movement of another adjacent photovoltaic module 200 in the left and right directions further facilitates the transportation of the photovoltaic module 200 .

Preferably, as shown in FIG. 6 , a plurality of reinforcing ribs 290 extending in the front and rear directions and receiving grooves 292 between the reinforcing ribs are provided on the side of the support frame 2 away from the photovoltaic cell laminate 1 . The reinforcing ribs 290 are used to increase the strength of the photovoltaic module 200 . Referring to FIG. 4 , the bottom windshield wall 5 of the photovoltaic system 100 is installed in the receiving groove 292 . Referring to Fig. 1, after the photovoltaic modules 200 are assembled into a required matrix form, a bottom side windshield 5 is installed on the bottom side of the outermost photovoltaic module 200, wherein the bottom side windshield 5 is installed on It is located in the receiving groove 292 of the support frame 2 of the outermost photovoltaic module 200 .

Although the utility model is disclosed as above with preferred embodiments, it is not used to limit the utility model, and any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model should be defined by the claims of the utility model.

Claims (21)

1. A photovoltaic system, which includes a photovoltaic module and a windshield structure, the photovoltaic module includes a photovoltaic cell laminate and a support frame, the support frame is installed on the photovoltaic cell laminate, and the photovoltaic module is placed When mounted to a mounting surface, the front side of the photovoltaic cell laminate is close to the mounting surface and the rear side is away from the mounting surface, and the windshield structure is mounted close to the rear side of the photovoltaic cell laminate and substantially shields The space between the rear side of the photovoltaic module and the installation surface is characterized in that the windshield wall structure defines the relative position of the at least two adjacent photovoltaic modules and fixes at least two phases side by side in the left and right direction. on the support frame adjacent to the photovoltaic module. 2. The photovoltaic system of claim 1, wherein the support frame is mounted on the back side of the photovoltaic cell laminate. 3. The photovoltaic system of claim 1, wherein the support frame includes a support portion for supporting the photovoltaic cell laminate, extending from a first end of the support portion beyond the photovoltaic cell laminate. A first connection portion on the front side of the component, a transition portion extending from the opposite second end of the support portion beyond the opposite rear side of the photovoltaic cell laminate, and a second connection portion extending from the transition portion , wherein, the windshield wall structure is fixed on the transition portion of the supporting frames of adjacent photovoltaic modules, so that the adjacent photovoltaic modules are connected side by side. 4. The photovoltaic system according to claim 3, wherein the transition part is provided with a plurality of fixing holes, and the position of the windshield wall corresponding to the fixing holes is provided with protruding claws. When the windshield wall structure is fixed on the support frame, the claws are buckled in the fixing holes. 5. The photovoltaic system according to claim 4, wherein a positioning hole is provided on the transition part, and a protruding positioning post is provided at a position corresponding to the positioning hole in the windshield structure, when When the windshield wall structure is fixed on the support frame, the positioning column is positioned in the positioning hole. 6 . The photovoltaic system according to claim 3 , wherein the windshield structure is provided with a slot corresponding to the position of the transition part, and the transition part is accommodated in the slot. 7 . 7 . The photovoltaic system according to claim 3 , wherein a relief portion for accommodating the upper side of the windshield structure is provided on the top side of the intersection of the support portion and the transition portion. 8 . 8. The photovoltaic system according to any one of claims 1 to 7, wherein the windshield structure comprises a middle windshield and an outer windshield, and the middle windshield is used to connect two adjacent left and right side by side A photovoltaic module whose length is substantially equal to the length of a photovoltaic cell laminate rear side; said outer windshield is used for the outermost photovoltaic module and whose length is substantially equal to the length of a photovoltaic cell laminate rear side half of. 9. The photovoltaic system according to claim 1, further comprising a bottom side windshield, a receiving groove is provided on a side of the support frame away from the photovoltaic cell laminate, and the bottom side windshield is installed on the side of the photovoltaic cell laminate. in the storage tank. 10. The photovoltaic system according to claim 9, wherein a plurality of reinforcing ribs extending in the front-to-back direction are provided on the side of the supporting frame away from the photovoltaic cell laminate, and the receiving groove is located between the reinforcing ribs . 11. The photovoltaic system according to claim 1, wherein the windshield wall structure is provided with a plurality of openings. 12. The photovoltaic system according to claim 11, wherein the plurality of openings are circular or polygonal through holes, or holes with a louver structure. 13. A photovoltaic system windshield structure for connecting photovoltaic modules, the photovoltaic module comprising a photovoltaic cell laminate and a support frame installed on the photovoltaic cell laminate, when the photovoltaic module is installed on the installation surface When the front side of the photovoltaic cell laminate is close to the installation surface and the rear side is away from the installation surface, the windshield structure is installed close to the rear side of the photovoltaic cell laminate and basically blocks the photovoltaic module The space between the rear side and the installation surface is characterized in that: the windshield wall structure defines the relative position of the at least two adjacent photovoltaic modules and fixes the support frame of at least two photovoltaic modules side by side in the left and right direction superior. 14. The photovoltaic system windbreak structure according to claim 13, wherein the support frame includes a support portion for supporting on the back side of the photovoltaic cell laminate, extending from a first end of the support portion A first connecting portion beyond the front side of the photovoltaic cell laminate, a transition portion extending from the opposite second end of the support portion beyond the opposite rear side of the photovoltaic cell laminate, and from the transition The second connection part that continues to extend, wherein the windshield wall structure is fixed on the transition part of the supporting frames of adjacent photovoltaic modules, so that the adjacent photovoltaic modules are connected side by side. 15. The photovoltaic system windshield structure according to claim 14, wherein the windshield structure is provided with protruding claws, and a plurality of fixing claws are provided on the transition part corresponding to the positions of the claws. holes, and when the windshield structure is fixed on the support frame, the claws are snapped into the fixing holes. the 16. The photovoltaic system windshield structure according to claim 15, wherein the windshield structure is also provided with a protruding positioning column, and a position corresponding to the positioning column is also provided on the transition part A positioning hole, when the windshield wall structure is fixed on the support frame, the positioning column is positioned in the positioning hole. 17. The photovoltaic system windshield structure according to claim 14, wherein the windshield structure is provided with a slot corresponding to the position of the transition part, and the transition part is accommodated in the slot. 18. The photovoltaic system windshield structure according to claim 14, wherein the upper side of the windshield structure is accommodated in a relief portion provided on the top side of the junction of the support portion and the transition portion . 19. The photovoltaic system windshield structure according to any one of claims 13 to 18, wherein the windshield structure comprises a middle windshield and an outer windshield, and the middle windshield is used for side by side Connect two left and right adjacent photovoltaic modules, the length of which is basically equal to the length of the rear side of a photovoltaic cell laminate; the outer windshield is used to connect the outermost photovoltaic module, and its length is basically equal to a photovoltaic cell layer Half the length of the rear side of the press. 20. The photovoltaic system windshield structure according to claim 13, wherein the windshield structure is provided with a plurality of openings. 21. The photovoltaic system windshield structure according to claim 20, wherein the plurality of openings are circular or polygonal through holes, or holes with a louver structure. the

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