CN216162664U

CN216162664U - Photovoltaic power generation system

Info

Publication number: CN216162664U
Application number: CN202121798971.7U
Authority: CN
Inventors: 于俊; 刘勇; 王建明
Original assignee: Das Solar Co Ltd
Current assignee: Yidao New Energy Technology Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-04-01
Anticipated expiration: 2031-08-03

Abstract

The invention discloses a photovoltaic power generation system, and relates to the field of photovoltaic power generation. The system comprises: the photovoltaic module comprises a plurality of photovoltaic module units and a plurality of fixed balancing weights; wherein, photovoltaic module modular unit includes: a wedge-shaped groove and a connecting frame. The photovoltaic modules are fixed at the notch position of the bottom of the wedge-shaped groove, the photovoltaic module units are fixedly connected through the connecting frames to form photovoltaic module arrangement, a fixed balancing weight is placed between every two adjacent photovoltaic module units, and the photovoltaic modules are arranged and pressed above the lower platform through the fixed balancing weights. The structure of the device simplifies the components of the photovoltaic system, reduces the workload of installation and improves the power generation efficiency.

Description

Photovoltaic power generation system

Technical Field

The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic power generation system.

Background

Under the background of national non-renewable resource compactness, energy safety and increasingly aggravated environmental pollution, the distributed new energy becomes a very important part of the energy strategy in China, is one of effective ways for relieving the serious power shortage situation in China and ensuring the implementation of the strategy of sustainable development, and has huge development potential. Photovoltaic power generation is widely used as one of distributed new energy sources at present.

The solar photovoltaic power generation system is a power generation system which directly converts solar radiation energy into electric energy, at present, a photovoltaic module is generally installed by adopting a metal support, parts such as a stand column, a cross beam and a connecting piece are needed to be used for fixedly connecting the photovoltaic module, most of the parts are made of rigid metal, the field installation workload is large, and the transportation cost of each part is greatly increased.

Disclosure of Invention

In view of the above, the present invention has been made to provide a photovoltaic power generation system that overcomes or at least partially solves the above problems.

The invention provides a photovoltaic power generation system, comprising:

the photovoltaic module comprises a plurality of photovoltaic module units and a plurality of fixed balancing weights;

the photovoltaic module unit includes:

the wedge-shaped groove is provided with a slope, the notch of the wedge-shaped groove faces the lower platform, a notch with an upward opening is formed in the bottom of the wedge-shaped groove, and the notch is matched with the photovoltaic module;

the connecting frame surrounds the notch position of the wedge-shaped groove and is used for fixedly connecting each assembly module unit;

the photovoltaic modules are fixed at the notch position of the bottom of the wedge-shaped groove, the photovoltaic module units are fixedly connected through the connecting frames to form a photovoltaic module array, a fixed balancing weight is arranged between every two adjacent photovoltaic module units, and the photovoltaic modules are arranged and pressed above the lower platform through the fixed balancing weights.

Preferably, the photovoltaic module unit is made of plastic.

Preferably, a plurality of slots and a socket penetrating through the notch are arranged at the bottom of the wedge-shaped groove;

the slots are uniformly distributed in the notches at the bottoms of the wedge-shaped grooves;

the socket is matched with a junction box of the photovoltaic module.

Preferably, one side of the notch opening close to the wedge-shaped groove slope bottom is provided with a plurality of first drainage ports.

Preferably, the groove wall of the wedge-shaped groove is provided with a plurality of vent holes.

Preferably, a plurality of second water outlets are formed in the end portions, close to the slope bottom and the slope top of the wedge-shaped groove, of the connecting frame.

Preferably, a plurality of clamping blocks are arranged around the opening of the notch.

Preferably, the opposite two sides of the connecting frame are provided with overlapping parts, and the overlapping parts of two adjacent photovoltaic module units are matched.

Preferably, the overlapping portion is provided with a screw hole.

Preferably, the inner wall of the wedge-shaped groove is provided with a reinforcing rib.

In the scheme of the invention, the notch of the wedge-shaped groove is placed towards the lower platform, the bottom of the groove is provided with a notch with an upward opening, and the photovoltaic module is embedded in the notch; and a connecting frame is enclosed at the notch position of the wedge-shaped groove to form a photovoltaic module unit. The connecting frame is fixedly connected with two adjacent photovoltaic module units to form a photovoltaic module arrangement, and a fixed balancing weight is pressed between the two adjacent photovoltaic module units in the photovoltaic module arrangement. The photovoltaic module is embedded in the notch, and the opening of the notch is higher than the photovoltaic module, so that the photovoltaic module is limited to move. The wedge-shaped groove has a slope, the solar irradiation amount absorbed by the photovoltaic module is increased, and further the generation of electric quantity is increased, so that the working efficiency of the photovoltaic system is improved, meanwhile, rainwater on the surface of the photovoltaic module is led out in time, dirty dirt on the surface of the photovoltaic module is taken away, and the photovoltaic module is enabled to have a self-cleaning function. The slope bottom and the slope top of the wedge-shaped groove form a slope angle A with a small angle, and the wind load type coefficient is small due to the small angle of the slope angle, so that the wind load borne by the photovoltaic module arrangement is small, and a fixing balancing weight with enough weight is pressed between every two adjacent photovoltaic module units arranged by the photovoltaic module, so that the arrangement of the photovoltaic modules can be fixed.

The device adopts an integrally closed type, and the installation of the photovoltaic module well keeps the original shape of the installation surface, so that the whole structure does not additionally increase wind load, and the slope angle of the device is smaller, so that the effect of the wind load is reduced, the photovoltaic modules are arranged and fixed by placing the fixed balancing weight, the photovoltaic system module is simplified, the installation workload is reduced, and the power generation efficiency is improved.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings.

In the drawings:

fig. 1 is a diagram of an arrangement and fixation structure of a photovoltaic module according to an embodiment of the present invention;

FIG. 2 is a block diagram of the photovoltaic module unit of FIG. 1;

fig. 3 is an exploded view of the photovoltaic module unit and the photovoltaic module of fig. 1;

FIG. 4 is a top view of the photovoltaic module of FIG. 1 secured to a photovoltaic module unit;

FIG. 5 is a front view of the photovoltaic module of FIG. 1 secured to a photovoltaic module unit;

FIG. 6 is a left side view of the photovoltaic module of FIG. 1 secured to a photovoltaic module block unit;

FIG. 7 is a block diagram of the photovoltaic module of FIG. 1 secured to a photovoltaic module unit;

fig. 8 is a top view of a photovoltaic module unit provided by an embodiment of the present invention;

fig. 9 is a front view of a photovoltaic module unit provided by an embodiment of the present invention;

fig. 10 is a structure diagram of the overlapping of two adjacent photovoltaic module units according to an embodiment of the present invention;

FIG. 11 is a layout diagram of a photovoltaic module arrangement according to an embodiment of the present invention;

FIG. 12 is a layout diagram of another photovoltaic module arrangement provided by an embodiment of the present invention;

fig. 13 is a diagram illustrating a stacking and placing structure of a photovoltaic module unit provided in an embodiment of the present invention;

fig. 14 is a structural view of another photovoltaic module arrangement and fixation structure provided by the embodiment of the invention.

Description of the drawings:

1. a photovoltaic module unit; 11. a wedge-shaped groove; 111. a recess; 111a, a first drain; 111b, a fixture block; 112. a slot; 113. a socket; 114. a vent hole; 12. a connecting frame; 121. a second water discharge port; 122. a lap joint section; 122a, a screw hole; 2. fixing a balancing weight; 3. provided is a photovoltaic module.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Referring to fig. 1 to 14, a photovoltaic power generation system provided by an embodiment of the present invention is shown, the system including:

a plurality of photovoltaic module units 1 and a plurality of fixed balancing weights 2;

the photovoltaic module unit 1 includes:

the wedge-shaped groove 11 is provided with a slope, the notch of the wedge-shaped groove 11 faces the lower platform, a notch 111 with an upward opening is formed in the bottom of the wedge-shaped groove 11, and the notch 111 is matched with the photovoltaic module 3;

a connecting frame 12 enclosing the notch position of the wedge-shaped groove 11 and used for fixedly connecting each assembly module unit 1;

the photovoltaic modules 3 are fixed at the positions of the notches 111 at the bottoms of the wedge-shaped grooves 11, the photovoltaic module units 1 are fixedly connected through the connecting frames 12 to form photovoltaic module arrangement, a fixed balancing weight 2 is arranged between every two adjacent photovoltaic module units 1, and the photovoltaic modules are arranged and pressed above the lower platform through the fixed balancing weights 2.

In the embodiment of the invention, the widths of the top and the bottom of the wedge-shaped groove 11 are consistent, the notch is placed towards the lower platform, the bottom of the groove is provided with a notch 111 with an upward opening, and the photovoltaic module 3 is embedded in the notch 111; the notch position of the wedge-shaped groove 11 is enclosed with a connecting frame 12 to form the photovoltaic module unit 1. Referring to fig. 1, a connecting frame 12 is shown to fixedly connect two adjacent photovoltaic module units 1 to form a photovoltaic module arrangement, and a fixed counterweight 2 is pressed between two adjacent photovoltaic module units 1 in the photovoltaic module arrangement. The photovoltaic module 3 is embedded in the recess 111 and the opening of the recess 111 is higher than the photovoltaic module 3, which has the function of limiting the movement of the photovoltaic module 3. Wedge recess 11 has the slope, increases the solar radiation volume that photovoltaic module 3 absorbs, and then increases the production of electric quantity to improve photovoltaic system's work efficiency, simultaneously, in time derive the rainwater on photovoltaic module 3 surface, and take away the dirty filth on photovoltaic module 3 surface, make it possess self-cleaning function.

Referring to fig. 6, a slope angle a with a small angle formed by the slope bottom and the slope top of the wedge-shaped groove 11 is shown, and according to a calculation formula of wind load, because the angle of the slope angle is small and the size coefficient of the wind load is small, the wind load received by the photovoltaic module arrangement is also small, and therefore a fixed balancing weight 2 with enough weight is pressed between two adjacent photovoltaic module units 1 of the photovoltaic module arrangement, so that the photovoltaic module arrangement can be fixed. The shape of the fixed weight 2 may be various, such as a cylindrical fixed weight, a polygonal fixed weight. The position where the fixed weight 2 is placed is only one of the embodiments of the present invention, and should not be construed as a limitation on the position where the fixed weight 2 is placed. The weight of the fixed counterweight block 2 is selected according to actual conditions. Two adjacent photovoltaic module unit 1 still can be through bolt and lower part platform fixed connection, and wherein the bolt can adopt rag bolt and expansion bolts etc..

The photovoltaic modules are distributed in an array to form a photovoltaic module array, wherein the slope tops of the photovoltaic module units 1 in the photovoltaic module array are in the same direction. The distribution of the photovoltaic module array is in various forms, for example, in northern hemisphere, referring to fig. 11, the photovoltaic module units 1 in the photovoltaic module array are shown to be arranged in the same direction, and the slope tops thereof are arranged towards the south; referring to fig. 12, it is shown that the tops of the photovoltaic module modules 1 in which two groups of photovoltaic modules are arranged can be arranged in opposite directions, so that the structure is streamlined, the effect of wind load is reduced, and the photovoltaic modules are arranged in the east-west direction. The row spacing of above-mentioned two kinds of arrangement can be adjusted according to actual demand, all can make the absorbed solar radiation volume of photovoltaic module 3 increase above, and then the electric quantity that produces increases, improves photovoltaic system's work efficiency.

The device adopts an integrally closed type, and the installation of the photovoltaic module well keeps the original shape of the installation surface, so that the whole structure does not additionally increase wind load, and the slope angle of the device is smaller, so that the effect of the wind load is reduced, the photovoltaic modules are arranged and fixed by placing the fixed balancing weight 2, the photovoltaic system module is simplified by the device, the installation workload is reduced, and the power generation efficiency is improved.

Further, the photovoltaic module unit 1 is made of plastic.

In the embodiment of the invention, the plastic photovoltaic module unit 1 is integrally formed by injection molding of plastic polymers, and fig. 13 shows that the photovoltaic module units 1 can be stacked. The material has good weather resistance, ultraviolet resistance and good processability, and the material has low density and light weight, so that the transportation and installation are more portable and efficient, and the transportation cost is reduced.

Preferably, referring to fig. 2, 6 and 8, the bottom of the wedge-shaped groove 11 is provided with a plurality of slots 112 and a socket 113 penetrating the notch 111;

the slots 112 are uniformly distributed in the notch 111 at the bottom of the wedge-shaped groove 11;

the socket 113 is matched with a junction box of the photovoltaic module 3.

In an embodiment of the present invention, a socket 113 parallel to the wedge-shaped bottom surface is disposed at the bottom of the wedge-shaped groove 11, and slots 112 are uniformly distributed on both sides of the socket 113, and the slots 112 are perpendicular to the socket 113. The slot 112 is used for heat dissipation of the back of the photovoltaic module 3; the socket 113 is matched with the photovoltaic module 3 junction box, so that the junction box and the cable are prevented from being directly irradiated by sunlight. The present embodiment is only one distribution of the sockets 113 and the slots 112, and should not be construed as limiting the distribution of the sockets 113 and the slots 112.

Preferably, referring to fig. 2 and 8, it is shown that the side of the opening of the notch 111 close to the bottom of the wedge-shaped groove 11 is provided with a plurality of first drainage ports 111 a.

In one embodiment of the present invention, a plurality of first drainage openings 111a are disposed at one side of the slope bottom of the wedge-shaped groove 11, and rainwater flows from the top of the slope to the slope bottom and is drained through the first drainage openings 111a, so as to prevent rainwater from accumulating in the recess 111.

Still further, referring to fig. 2, 3, 5 and 9, it is shown that the walls of the wedge-shaped recess 11 are provided with a number of ventilation holes 114.

In one embodiment of the invention, the slope top of the wedge-shaped groove 11 and the groove walls at two sides of the slope top are both provided with the vent holes 114, so that airflow flows in the groove of the wedge-shaped groove 11, and heat generated by the back of the photovoltaic module 3 during working is taken away conveniently; meanwhile, wind gathering is avoided, so that the device has a firmer structure. The number, shape and location of the vent holes 114 are set according to actual requirements.

Still further, referring to fig. 2 and 8, it is shown that the end portions of the connection frame 12 near the bottom and top of the wedge-shaped groove 11 are provided with a plurality of second drain openings 121.

In the embodiment of the invention, the arrangement of the water outlet 121 is convenient for draining accumulated water below, so that the structure of the device is firmer. The number of the water outlets 121 can be determined according to actual requirements.

Still further, referring to fig. 3-7, a plurality of latch blocks 111b are shown disposed around the opening of the recess 111.

In the embodiment of the invention, the clamping blocks 111b are arranged around the opening of the notch 111, and the photovoltaic module 3 is firmly fixed on the photovoltaic module unit 1 by fixing the clamping blocks 111 b. The number of the latch blocks 111b can be determined according to actual requirements.

Still further, referring to fig. 2 and 10, it is shown that the connecting frame 12 is provided with overlapping portions 122 on two opposite sides, and the overlapping portions 122 of two adjacent photovoltaic module units 1 are matched.

In the embodiment of the invention, the two sides of the connecting frame 12 are both provided with the lapping parts 122, and the lapping parts 122 of two adjacent photovoltaic module units 1 are matched to fixedly connect the two adjacent photovoltaic module units 1, so that the two adjacent photovoltaic module units 1 form a photovoltaic module arrangement.

Still further, referring to fig. 2, it is shown that the overlapping portion 122 is provided with a screw hole 122 a.

In an embodiment of the present invention, the bridging portion 122 is provided with a screw hole 122a, and two adjacent photovoltaic module units 1 are fixedly connected by bolts, and referring to fig. 14, it is shown that two adjacent photovoltaic module units 1 can also be fixedly connected with the lower platform by bolts, so that the photovoltaic module units 1 can be rooted and fixed on the lower platform.

Preferably, the inner wall of the wedge-shaped groove 11 is provided with a reinforcing rib.

In one embodiment of the invention, the inner wall of the wedge-shaped groove 11 is provided with the reinforcing rib, and the reinforcing rib is arranged on the inner wall of the wedge-shaped groove 11, so that the external structure of the device is not influenced, and meanwhile, the strength and the rigidity of the structure of the device are increased, and the structure has certain capacity of resisting external load. The shape, size and position of the reinforcing rib can be set according to actual requirements.

The working principle is as follows:

the notch of the wedge-shaped groove 11 is placed towards the lower platform, the bottom of the groove is provided with a notch 111 with an upward opening, and the photovoltaic module 3 is embedded in the notch 111; the notch position of the wedge-shaped groove 11 is enclosed with a connecting frame 12 to form the photovoltaic module unit 1. Two adjacent photovoltaic module units 1 are fixed in a lap joint mode through a connecting frame 12 to form a photovoltaic module arrangement, and a fixed balancing weight 2 is pressed between the two adjacent photovoltaic module units 1 in the photovoltaic module arrangement and fixed with a lower platform.

The photovoltaic module 3 is embedded in the recess 111 and the opening of the recess 111 is higher than the photovoltaic module 3, which has the function of limiting the movement of the photovoltaic module 3. Wedge recess 11 has the slope, increases the solar radiation volume that photovoltaic module 3 absorbs, and then increases the production of electric quantity to improve photovoltaic system's work efficiency, simultaneously, in time derive the rainwater on photovoltaic module 3 surface, and take away the dirty filth on photovoltaic module 3 surface, make it possess self-cleaning function. The slope bottom and the slope top of the wedge-shaped groove form a slope angle A with a small angle, and the wind load size coefficient is small due to the fact that the angle of the slope angle is small according to a calculation formula of wind load, so that the wind load received by the photovoltaic module arrangement is small, and a fixed balancing weight with enough weight is pressed between every two adjacent photovoltaic module units 1 arranged by the photovoltaic module arrangement, so that the arrangement fixation of the photovoltaic module can be realized.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As is readily imaginable to the person skilled in the art: any combination of the above embodiments is possible, and thus any combination between the above embodiments is an embodiment of the present invention, but the present disclosure is not necessarily detailed herein for reasons of space.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The photovoltaic power generation system provided by the invention is described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A photovoltaic power generation system, characterized in that the system comprises:

a plurality of photovoltaic module units (1) and a plurality of fixed balancing weights (2);

the photovoltaic module unit (1) comprises:

the wedge-shaped groove (11) is provided with a slope, the notch of the wedge-shaped groove (11) is placed towards the lower platform, a notch (111) with an upward opening is formed in the bottom of the wedge-shaped groove (11), and the notch (111) is matched with the photovoltaic module (3);

the connecting frame (12) surrounds the notch position of the wedge-shaped groove (11) and is used for fixedly connecting each assembly module unit (1);

photovoltaic module (3) are fixed in wedge recess (11) tank bottom notch (111) position, through each connecting frame (12) fixed connection photovoltaic module unit (1) forms the photovoltaic module and arranges, and adjacent two place a fixed balancing weight (2) between photovoltaic module unit (1), through fixed balancing weight (2) will the photovoltaic module is arranged and is pressed and arrange in the top of lower part platform.

2. The system according to claim 1, characterized in that the photovoltaic module unit (1) is made of plastic.

3. The system according to claim 1, characterized in that the bottom of the wedge-shaped groove (11) is provided with a plurality of slots (112) and a socket (113) penetrating the notch (111);

the inserting grooves (112) are uniformly distributed in notches (111) at the bottoms of the wedge-shaped grooves (11);

the socket (113) is matched with a junction box of the photovoltaic module (3).

4. System according to claim 1, characterized in that the side of the opening of the recess (111) close to the base of the wedge-shaped groove (11) is provided with a number of first drainage openings (111 a).

5. System according to claim 1, characterized in that the walls of the wedge-shaped recess (11) are provided with a number of ventilation holes (114).

6. The system according to claim 1, characterized in that the connecting frame (12) is provided with second drainage openings (121) at the ends of the wedge-shaped groove (11) close to the base and top of the groove.

7. The system according to claim 1, wherein the notch (111) is provided with a plurality of locking blocks (111b) around the opening.

8. The system according to claim 1, wherein the connecting frame (12) is provided with overlapping portions (122) at opposite sides thereof, and the overlapping portions (122) of two adjacent photovoltaic module units (1) are engaged with each other.

9. The system according to claim 8, characterized in that said bridge (122) is provided with a threaded hole (122 a).

10. System according to claim 1, characterized in that the wedge-shaped groove (11) is provided with reinforcing ribs on its inner wall.