CN209608610U - A mounting bracket for improving the power generation performance of double-sided photovoltaic modules - Google Patents

Abstract

The utility model discloses a kind of mounting brackets for improving two-sided photovoltaic module power generation performance, including rack body, it is mounted on the front mirror of the rack body leading flank and/or is mounted on the back mirror of the rack body trailing flank, the front mirror is used for the back side by incident sunlight reflection as the double-side assembly being located in front of the front mirror, and the back mirror is used for the front by incident sunlight reflection as the double-side assembly for being located at the back mirror rear.By the way that rack body is arranged between existing two-sided photovoltaic module, and front mirror and/or back mirror are installed on rack body, the sunlight of irradiation is reflected into the back side of the double-side assembly before rack body by front mirror, the sunlight of irradiation is reflected into the front positioned at the subsequent double-side assembly of rack body by back mirror, make it possible to guarantee the front and back of corresponding double-side assembly regardless of the sun is in which direction, sunlight can be received, the generating efficiency of double-side assembly is improved.

Description

A mounting bracket for improving the power generation performance of double-sided photovoltaic modules

technical field

The utility model relates to the technical field of power generation efficiency of a double-glass module, in particular to a mounting bracket for improving the power generation performance of a double-sided photovoltaic module.

Background technique

With the development of photovoltaic technology, double-sided modules can generate electricity on both the front and back sides, which can greatly improve the utilization efficiency of sunlight, and their service life is longer than traditional single-sided cells, which can greatly reduce power generation costs. It has received more and more attention, and its application range is getting wider and wider.

For double-sided modules, compared with conventional single-sided photovoltaic modules, the increase in power generation of double-sided modules is mainly due to the power generation on the back of the double-sided modules. However, in the actual application process of bifacial modules, in addition to being affected by the intensity of sunlight, the installation method of the modules, the height of the bottom of the module from the ground, and the reflective ground will all affect the power generation of the bifacial modules.

At present, the installation of bifacial modules mostly adopts the fixed installation method with the best inclination angle, but the bifacial modules contribute little to the power generation due to the weak back light intensity. In order to further improve the power generation capacity of double-sided modules and make more effective use of sunlight, it is an effective method to improve the installation of modules, such as intelligent tracking brackets, including single-axis tracking and dual-axis tracking, etc., in order to improve the power generation of photovoltaic modules. The amount of light received in the process, thereby improving the power generation efficiency of photovoltaic modules.

However, compared with fixed brackets, smart brackets are generally installed at a higher height, especially oblique single-axis brackets and dual-axis tracking brackets, which have a higher failure rate and operation and maintenance costs during long-term operation. At the same time, the cost of this type of bracket is higher , is subject to certain limitations in practical applications. However, when photovoltaic modules are installed at an optimal inclination angle, the amount of light received by the modules is limited, especially the amount of light received by the back of the double-sided photovoltaic modules is greatly affected by the ground emissivity and installation height, which limits the improvement of the power generation efficiency of the double-sided modules.

Utility model content

The purpose of the utility model is to provide a mounting bracket for improving the power generation performance of the double-sided photovoltaic module, which improves the power generation efficiency of the double-sided module.

In order to solve the above technical problems, the embodiment of the utility model provides a mounting bracket for improving the power generation performance of double-sided photovoltaic modules, including a bracket body, a front reflector installed on the front side of the bracket body and/or mounted on the bracket A rear reflector on the rear side of the main body, the front reflector is used to reflect the incident sunlight to the back of the double-sided component located in front of the front reflector, and the rear reflector is used to reflect the incident sunlight to the back of the double-sided component located in front of the front reflector The rear reflector is behind the front of the duplex assembly.

Wherein, the front reflector is hinged to the top edge of the rear reflector.

Wherein, the shape of the front reflector is the same as that of the rear reflector, and their dimensions are equal.

Wherein, it also includes an angle adjuster arranged on the bracket main body, the angle adjuster is connected with the front reflector and the rear reflector, and is used to adjust the reflection of the front reflector and the rear reflector. The angle of light is such that the reflected light of the front reflector is reflected to the back of the front double-sided component and the reflected light of the rear reflector is reflected to the front of the rear double-sided component.

Wherein, it also includes a supporting base connected with the bracket main body.

Wherein, the support base is bolted to the bracket main body.

Wherein, the supporting base is a cement-based supporting base or a steel-based supporting base.

Wherein, the supporting base is bolted to the main body of the bracket through a height adjuster arranged on the top.

Compared with the prior art, the installation bracket for improving the power generation performance of the double-sided photovoltaic module provided by the embodiment of the utility model has the following advantages:

The installation bracket for improving the power generation performance of the double-sided photovoltaic module provided by the embodiment of the utility model is provided with a bracket body between the existing double-sided photovoltaic modules, and a front reflector and/or a rear reflector are installed on the bracket body. The reflector reflects the irradiated sunlight to the back of the bifacial module located in front of the bracket main body, and the rear reflector reflects the irradiated sunlight to the front of the bifacial module located behind the bracket main body, so that the front and back of the corresponding bifacial module can be guaranteed. No matter which direction the sun is on the back side, it can receive sunlight, which improves the power generation efficiency of the double-sided module. The structure is simple and the cost is less.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present utility model. Those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Figure 1 is a diagram of the positional relationship between the installation bracket and the double-sided module provided by the embodiment of the present invention to improve the power generation performance of the double-sided photovoltaic module;

Fig. 2 is a structural schematic diagram of a specific embodiment of a mounting bracket for improving the power generation performance of a double-sided photovoltaic module provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1 to 2. Figure 1 is a diagram of the positional relationship between the installation bracket and the double-sided module provided by the embodiment of the utility model to improve the power generation performance of the double-sided photovoltaic module; A structural schematic diagram of a specific embodiment of a mounting bracket for photovoltaic module power generation performance.

In a specific embodiment, the installation bracket for improving the power generation performance of double-sided photovoltaic modules includes a bracket body 50, a front reflector 30 installed on the front side of the bracket body 50 and/or a front mirror 30 installed on the bracket body 50 The rear reflector 40 on the rear side, the front reflector 30 is used to reflect the incident sunlight to the back of the double-sided assembly 10 positioned in front of the front reflector 30, and the rear reflector 40 is used to reflect the incident sunlight Sunlight is reflected to the front of the bifacial module located behind said rear reflector 40 .

By setting the support main body between the existing double-sided photovoltaic modules, and installing the front reflector 30 and/or the rear reflector 40 on the support main body 50, the front reflector 30 reflects the irradiated sunlight to the front of the support main body 50. On the back side of the double-sided module, the rear reflector 40 reflects the irradiated sunlight to the front of the double-sided module positioned behind the bracket main body 50, so that it can ensure that the front and back sides of the corresponding double-sided module can receive sunlight no matter which direction the sun is in. Sunlight improves the power generation efficiency of the bifacial module, the structure is simple, and the additional cost is small.

In the present invention, there is no limitation on the structure, shape and size of the front reflector 30 and the rear reflector 40 , and there is no limitation on their connection with the bracket main body 50 . Because in every day or even every year, it will be a solar movement cycle, the angle of solar radiation will change, so that the incident angle of the sunlight irradiated on the front reflector 30 and the rear reflector 40 will change, and the front reflector 30 and the rear reflector 40 will change. The function of the mirror 40 is that when the sun shines on one of the front or back sides of the double-sided module, the sunlight is reflected to the other side of the double-sided module through the front reflector 30 or the rear reflector 40, so that both sides of the photovoltaic module receive sunlight at the same time The purpose is to improve the power generation efficiency of the components. This just makes it necessary to adjust the angles of the front reflector 30 and the rear reflector 40 according to the position of the sun in the sky. In the utility model, the front reflector 30 and the rear reflector 40 can be adjusted independently, that is, they can be adjusted step by step , and can also be adjusted synchronously according to a certain rule. In order to reduce the complexity of parameter setting and adjustment, and reduce the complexity of the construction of the photovoltaic power station, the angles between the double-sided modules 20 in front of and behind the bracket main body 50 and the ground are equal, that is, Generally, the angles between the corresponding surfaces of all double-sided components and the sunlight are equal at the same time, so the angle to be adjusted by the rear reflector 40 can be obtained after the angle to be adjusted by the front reflector 30 is obtained through calculation.

It should be pointed out that when the sun shines on the bifacial module, there is always one side that cannot be directly irradiated by the sun. Therefore, the corresponding front reflector 30 and rear reflector 40 often cannot work normally at the same time. When the front side of the face assembly is directly irradiated by sunlight, the back side cannot be directly irradiated, and the front reflector 30 is required to reflect sunlight. At this time, the rear reflector 40 cannot be directly irradiated by sunlight because its back is facing the sunlight. Generally speaking, the power that can be increased by the frontal reflection is very little, which is of little significance.

Therefore, in the utility model, only one side reflector can be used to work, and it is a single-sided reflector, so that the front reflector 30 and the rear reflector 40 can be used concurrently in different stages, and only need to adjust the angle can also be used. Both the front and the back can be used to reflect, and the front and the back are used to work in different time periods, and even two mirrors can be used to work independently, which is not limited by the present invention.

Generally, in order to reduce the angle adjustment range, two reflectors are used, and in order to reduce the occupied space as much as possible, in one embodiment of the present utility model, the top edge of the front reflector 30 and the rear reflector 40 is hinged.

It should be pointed out that the present invention does not limit the connection method of the front reflector 30 and the rear reflector 40 .

Furthermore, since the dimensions of the double-sided modules in the same power station are generally the same, in order to improve maintenance efficiency, the front reflector 30 and the rear reflector 40 have the same shape and corresponding dimensions in this utility model equal.

It should be pointed out that the utility model does not limit the size of the front reflector 30 and the rear reflector 40. It can be that a front reflector 30 or a rear reflector 40 only irradiates an independent double-sided assembly, or it can be To irradiate multiple or even a row of bifacial modules, it is necessary to select a suitable mirror size according to the actual arrangement of the bifacial modules.

In this utility model, since the angle of sunlight irradiation will change with time in a day or a year, and the height of the sun will also be different at the same time every day, in order to increase the power generation efficiency of the double-sided module, as far as possible To reduce the increase in the average power generation cost caused by setting the installation bracket, or even to reduce the average power generation cost, it is necessary to adjust the angle of the reflector according to the height of the sun.

The utility model does not limit the angle adjustment method and device, etc. In one embodiment, the installation bracket for improving the power generation performance of double-sided photovoltaic modules also includes an angle adjuster 60 arranged on the bracket main body 50, the Angle adjuster 60 is connected with described front reflector 30, described rear reflector 40, is used to adjust the angle of the reflected light of described front reflector 30, described rear reflector 40, makes the described front reflector 30 The reflected light is reflected to the back of the front double-sided module 10 and the reflected light of the rear reflector 40 is reflected to the front of the rear double-sided module 20 .

In the utility model, the angle adjuster 60 is not limited, and a telescopic bracket or an air cylinder can be used, or manual adjustment can be used. For example, the bracket body 50 is hinged to the front reflector 30, and the hinge axis is in the horizontal direction, and the frame of the front reflector 30 is rotated around the hinge axis to a certain angle and then fixed, which can be achieved by visual inspection or other means. On the other hand, in order to improve the adjustment efficiency, since the angles between all double-sided components and the ground are equal, the corresponding front reflector 30 or rear reflector 40 must be in parallel after adjustment, and the same adjustment parameters can be set. The angle of the front reflector 30 or rear reflector 40 corresponding to one of the two sides can be manually adjusted, recorded by the instrument, and the angles of the remaining front reflectors 30 or rear reflector 40 can be automatically adjusted.

And for above-mentioned angle adjuster 60, also can adopt umbrella structure, promptly one end of angle adjuster 60 moves in vertical direction, and the other end drives front reflector 30 or rear reflector 40 to rotate, adopts this structure, only need It only needs to set the height of the angle adjuster 60 installed on the movable end of the bracket main body 50, and the whole adjustment process is simpler and more accurate.

In the present invention, the installation position and installation method of the bracket body 50 are not specifically limited, and the bracket can be installed on the bottom surface, or it can be installed on other devices first, and then installed. In order to improve installation efficiency and service life, in one embodiment of the present invention, the installation bracket for improving the power generation performance of the double-sided photovoltaic module further includes a support base 70 connected with the bracket main body 50 .

In the present invention, there is no specific limitation on the connection relationship between the bracket body 50 and the support base 70, and fixed connection, such as welding, etc. can be used, and flexible connection methods such as bolt connection and clip connection can also be used for connection. Generally, the support base 70 is bolted to the support main body 50 , so that the support base 70 and the support main body 50 can be installed independently, reducing the installation difficulty during the installation process.

The utility model does not limit the material and structure of the support base 70 , and the support base 70 can be a cement-based support base 70 , or a steel-based support base 70 , or a support base 70 made of other materials.

During the installation process, due to terrain constraints or different photovoltaic power stations, the height of the bifacial module from the bottom surface is different in different photovoltaic power stations, and for manufacturers, it is obviously difficult to manufacture bracket bodies 50 with different heights. Increase the manufacturing cost, in order to reduce the manufacturing cost, so that the product can be adapted to most of the double-sided module power plants, in one embodiment of the utility model, the support base 70 is connected with the support body through the height adjuster arranged on the top 50 bolt connection.

The utility model does not limit the height adjuster, a cylinder can be used as the height adjuster, and other structures can also be used, and the utility model does not limit this.

To sum up, the installation bracket for improving the power generation performance of the double-sided photovoltaic module provided by the embodiment of the utility model is provided by setting the bracket main body 50 between the existing double-sided photovoltaic modules, and installing the front reflector 30 on the bracket main body 50 And/or the rear reflector 40, the front reflector 30 reflects the sunlight irradiated to the back of the double-sided component positioned at the front of the support main body 50, and the rear reflector 40 reflects the irradiated sunlight to the back of the double-sided component positioned at the support main body 50 back. The front side ensures that the front and back sides of the corresponding bifacial module can receive sunlight regardless of the direction of the sun, which improves the power generation efficiency of the bifacial module, and has a simple structure and less added cost.

To sum up, the double-glass module lamination tooling provided by the embodiment of the utility model, by setting the short-side movable frame, the long-side movable frame and the long-side and short-side movable connection, makes the long-side movable frame and the short-side movable frame The component placement area surrounded by the long side and short side of the rectangular frame can be changed in size by changing the positions of the short side movable frame and the long side movable frame, so as to realize the lamination of double glass modules of different sizes and realize a layer The lamination of double-glass modules of various models and sizes by the press frame reduces the company's material costs and storage costs.

The installation bracket for improving the power generation performance of the double-sided photovoltaic module provided by the utility model has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present utility model, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.

Claims (8)

1. A mounting bracket for improving the power generation performance of double-sided photovoltaic modules, characterized in that it comprises a bracket body, a front reflector mounted on the front side of the bracket body and/or a rear reflector mounted on the rear side of the bracket body , the front reflector is used to reflect the incident sunlight to the back of the double-sided module located in front of the front reflector, and the rear reflector is used to reflect the incident sunlight to the back of the double-sided module located behind the rear reflector. The front side of the duplex component. 2 . The mounting bracket for improving the power generation performance of double-sided photovoltaic modules according to claim 1 , wherein the front reflector is hinged to the top edge of the rear reflector. 3 . The mounting bracket for improving the power generation performance of double-sided photovoltaic modules according to claim 2 , wherein the front reflector and the rear reflector have the same shape and corresponding dimensions. 4. The mounting bracket for improving the power generation performance of double-sided photovoltaic modules as claimed in claim 3, further comprising an angle adjuster arranged on the main body of the bracket, the angle adjuster is connected with the front reflector, the The rear reflector is connected to adjust the angle of the reflected light of the front reflector and the rear reflector, so that the reflected light of the front reflector is reflected to the back of the front double-sided component and the rear reflector The reflected light of the mirror is reflected to the rear of the front of the duplex module. 5 . The mounting bracket for improving the power generation performance of double-sided photovoltaic modules according to claim 4 , further comprising a support base connected to the bracket main body. 6 . The installation bracket for improving the power generation performance of double-sided photovoltaic modules according to claim 5 , wherein the support base is connected with the bracket main body by bolts. 7. The mounting bracket for improving the power generation performance of double-sided photovoltaic modules according to claim 6, wherein the supporting base is a cement-based supporting base or a steel-based supporting base. 8 . The mounting bracket for improving the power generation performance of double-sided photovoltaic modules according to claim 7 , wherein the supporting base is bolted to the main body of the bracket through a height adjuster arranged at the top.