Photovoltaic tracker rotor covered with components

Abstract

The present invention provides a photovoltaic tracker rotor with components densely arranged, including photovoltaic modules, component fixing mechanisms, light diverging mechanisms, and main shafts. Specifically: a plurality of the photovoltaic modules are arranged in sequence along the main shaft, and each of the photovoltaic modules is fixedly connected to the top of the main shaft through a component fixing mechanism and has an inclination angle set facing the light incident direction; the front ends of the photovoltaic modules along the light incident direction all extend into the shadow-covered area on the back of the previous photovoltaic module, and light diverging mechanisms are arranged at the rear ends of all of them. The light diverging mechanisms can diverge the received incident light to the shadow-covered area. This photovoltaic tracker rotor places the light diverging mechanisms at the rear ends of the photovoltaic modules, so that the light can be diverged to the shadow-covered area behind the components. While shortening the component installation spacing, it effectively avoids the influence of shadow occlusion on the power generation of the components, and thus increases the component installation capacity of the rotor.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic tracker rotors, and particularly to a photovoltaic tracker rotor with fully distributed components. Background Art

[0002] With the development of clean energy, photovoltaic modules have been increasingly applied. As the core component for converting solar energy into electrical energy, the installation and placement of photovoltaic modules are very important. Since the power generation efficiency of photovoltaic power generation is greatly affected by the sunlight irradiation angle, using a photovoltaic tracking device to move the photovoltaic modules with the sunlight irradiation angle can effectively improve the photoelectric conversion efficiency.

[0003] Generally, a photovoltaic tracking device sets the photovoltaic modules on a main shaft connected to a driving mechanism to form a rotor, so as to track the incident angle of sunlight rays. Currently, the photovoltaic modules on the photovoltaic tracker rotor are generally laid flat on the main shaft without spacing or are laid with an inclination angle but with intervals between the modules. However, the installation capacity of the existing photovoltaic tracker rotor components is relatively low, not only the power generation efficiency is not high, but also the waste of land resources is caused. Summary of the Invention

[0004] The present invention provides a photovoltaic tracker rotor with fully distributed components to improve the power generation of the photovoltaic tracker and the utilization rate of the site. The photovoltaic tracker rotor with fully distributed components includes photovoltaic modules, component fixing mechanisms, light divergence mechanisms and a main shaft, wherein:

[0005] A plurality of the photovoltaic modules are arranged in sequence along the main shaft, and each of the photovoltaic modules is fixedly connected to the top of the main shaft through a component fixing mechanism and has an inclination angle set facing the light incident direction;

[0006] At the front end of each of the photovoltaic modules along the light incident direction, it extends into the shadow coverage area of the back of the previous photovoltaic module, and at the rear end of each of the photovoltaic modules, there is provided a light divergence mechanism, and the light divergence mechanism can diverge the received incident light to the shadow coverage area.

[0007] In specific implementation, the front end of each of the photovoltaic modules along the light incident direction is aligned with the rear end of the previous photovoltaic module in front.

[0008] In specific implementation, the light divergence mechanism includes a concave lens and two lens brackets, wherein:

[0009] The concave point of the concave lens is located at the center along the light incident direction, and the width is the same as that of the photovoltaic module; the two lens brackets are arranged on both sides of the rear end of the photovoltaic module, and the concave lens is fixed between the two lens brackets.

[0010] In a specific implementation, the concave lens is fixedly connected to the two lens brackets through an EVA light-transmitting adhesive.

[0011] In a specific implementation, the component fixing mechanism includes a front bracket and a rear bracket, where:

[0012] The front bracket is arranged at the front end of the photovoltaic module along the light incident direction, and has a card slot that fits the photovoltaic module to snap-fix the photovoltaic module to the main shaft; the rear bracket is arranged behind the front bracket along the light incident direction, with a height greater than that of the front bracket, and the top is fixedly connected to the bottom of the photovoltaic module.

[0013] In a specific implementation, both the front bracket and the rear bracket have bases that fit on the top of the main shaft, and each base is fixedly connected to the main shaft through a U-bolt.

[0014] In a specific implementation, the rear bracket is arranged perpendicular to the main shaft, and the top is connected to the rear end of the bottom of the photovoltaic module.

[0015] In a specific implementation, the concave lens is arranged parallel to the photovoltaic module.

[0016] In a specific implementation, the cross-section of the main shaft is square.

[0017] The photovoltaic tracker rotor with components densely distributed provided by the present invention includes a main shaft, a plurality of photovoltaic modules, a fixing mechanism and a light divergence mechanism that are arranged in a supporting manner with the photovoltaic modules. The plurality of photovoltaic modules are fixedly connected to the top of the main shaft through the fixing mechanism and arranged in sequence, and each photovoltaic module has an inclination angle set facing the light incident direction; along the light incident direction, the front end of each photovoltaic module located at the rear penetrates into the shadow coverage area of the back of the front photovoltaic module, and a light divergence mechanism is arranged at the rear end of each photovoltaic module to diverge the incident light received to the shadow coverage area. Compared with the flat single tilt angle scheme of the existing photovoltaic tracker, the photovoltaic tracker rotor with components densely distributed creatively arranges the light divergence mechanism at the rear end of each photovoltaic module, effectively diverging the light to the shadow coverage area behind the module. While shortening the installation spacing of the modules, it also avoids the influence of shadow occlusion on the power generation power of the modules, thereby increasing the installed capacity of the photovoltaic modules, improving the site utilization rate, and combined with the trend of continuous reduction of the module price, it can also overall increase the power generation and reduce the system cost. Description of the Drawings

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are only some specific embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0019] Figure 1 is a schematic diagram of the overall structure of a photovoltaic tracker rotor with components densely distributed according to a specific embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of the principle of a photovoltaic tracker rotor with components densely distributed according to a specific embodiment of the present invention;

[0021] Figure 3 is a partial structural schematic diagram of a light divergence mechanism according to a specific embodiment of the present invention;

[0022] Figure 4 is a top view of a photovoltaic tracker rotor with components densely distributed according to a specific embodiment of the present invention. Specific Embodiments

[0023] To make the purpose, technical solutions and advantages of the specific embodiments of the present invention clearer, the following will further elaborate on the specific embodiments of the present invention with reference to the drawings. Here, the schematic specific embodiments of the present invention and their descriptions are used to explain the present invention, but do not limit the present invention.

[0024] As Figure 1 , Figure 2 and Figure 4 shown, the present invention provides a photovoltaic tracker rotor with components densely distributed to improve the power generation of the photovoltaic tracker and the site utilization rate. The photovoltaic tracker rotor with components densely distributed includes a photovoltaic module 100, a component fixing mechanism 200, a light divergence mechanism 300 and a main shaft 400, wherein:

[0025] A plurality of the photovoltaic modules 100 are arranged in sequence along the main shaft 400, and each of the photovoltaic modules 100 is fixedly connected to the top of the main shaft 400 through the component fixing mechanism 200 and has an inclination angle set facing the light incident direction;

[0026] Along the light incident direction, the front ends of each of the photovoltaic modules 100 extend into the shadow coverage area of the back of the previous photovoltaic module 100, and the light divergence mechanism 300 is provided at the rear end. The light divergence mechanism 300 can diverge the received incident light to the shadow coverage area.

[0027] During the implementation of the rotor of the photovoltaic tracker, the applicant considered that if the spacing of the photovoltaic modules 100 is set to be small, the shadow occlusion of the photovoltaic modules 100 will cause a whole row or column of photovoltaic modules 100 to be open-circuited, affecting the power generation efficiency. Against the background of the gradually decreasing cost of photovoltaic modules, it was creatively proposed to diverge light through a light scattering mechanism (such as Figure 1 , Figure 2 shown), so that the shaded area can obtain a light source. Although the light intensity in this area is not high, it effectively enables a whole row or column of photovoltaic modules 100 to form a circuit, thereby improving the power generation efficiency under shadow occlusion.

[0028] In specific implementation, there can be various implementation schemes for setting the spacing between two adjacent photovoltaic modules 100 along the light incident direction. For example, as Figure 1 , Figure 2 shown, in order to ensure the photoelectric conversion efficiency of a single photovoltaic module 100 while reducing the spacing of the photovoltaic modules 100, the front ends of the photovoltaic modules 100 along the light incident direction can be aligned with the rear ends of a front photovoltaic module 100, that is, the photovoltaic modules 100 are laid without setting a spacing.

[0029] In specific implementation, there can be various implementation schemes for setting the light divergence mechanism 300. For example, as Figure 3 , Figure 4 shown, since the concave lens 310 has excellent light divergence performance, high cost performance, and is not easily damaged during use, the light divergence mechanism 300 can include a concave lens 310 and two lens brackets 320, where: the concave point of the concave lens 310 is located at the center along the light incident direction, and the width is the same as that of the photovoltaic module 100; the two lens brackets 320 are arranged on both sides of the rear end of the photovoltaic module 100, and the concave lens 310 is fixed between the two lens brackets 320. Further, as Figure 3 shown, in order to ensure the light transmittance of the light divergence mechanism 300 and avoid blocking light, the concave lens 310 can be fixedly connected to the two lens brackets 320 through an EVA light-transmitting adhesive. In addition, the two lens brackets 320 can also be made of transparent material brackets, so as to further improve the light transmittance. When setting the lens brackets 320, a U-shaped lens bracket 320 can be selected. The open side of the U-shaped lens bracket 320 can be clamped to the rear end of the photovoltaic module 100, and both sides of the concave lens 310 are fixed by the U-shaped bracket.

[0030] In specific implementation, the setting of the component fixing mechanism 200 can include various implementation schemes. For example, as Figure 1 , Figure 2As shown in the figure, in order to ensure the stable connection between the component and the main shaft 400 and further improve the reliability of the photovoltaic tracker rotor under extreme working conditions such as strong winds, the component fixing mechanism 200 may include a front bracket 210 and a rear bracket 220, where: the front bracket 210 is arranged at the front end of the photovoltaic module 100 along the light incident direction and has a card slot 211 that fits with the photovoltaic module 100 to snap-fix the photovoltaic module 100 to the main shaft 400; the rear bracket 220 is arranged behind the front bracket 210 along the light incident direction, with a height greater than that of the front bracket 210, and the top is fixedly connected to the bottom of the photovoltaic module 100. Further, as Figure 2 shown in the figure, in order to ensure the stable connection between the front bracket 210 and the rear bracket 220 and the main shaft 400, the front bracket 210 and the rear bracket 220 may both have bases that fit on the top of the main shaft 400. At the same time, there are various implementation schemes for the connection between the base and the main shaft 400. For example, since the U-shaped bolt 230 has high connection stability and is easy to install, each base can be fixedly connected to the main shaft 400 through the U-shaped bolt 230. For another example, the base can also be welded to the main shaft 400 on-site. Further, in order to prevent the bases of the front bracket 210 and the rear bracket 220 from affecting the setting of adjacent photovoltaic modules 100, the bases of the front bracket 210 and the rear bracket 220 can be arranged facing each other, that is, both are arranged within the coverage area of each photovoltaic module 100, so as to avoid affecting the installation of the front and rear components.

[0031] In specific implementation, there are various implementation schemes for the setting of the rear bracket 220. For example, as Figure 1 、 Figure 2 shown in the figure, in order to ensure the bearing capacity and connection stability of the rear bracket 220, the rear bracket 220 can be arranged perpendicular to the main shaft 400, and the top is connected to the rear end of the bottom of the photovoltaic module 100.

[0032] In specific implementation, there are various implementation schemes for the setting of the concave lens 310. For example, as Figure 3 shown in the figure, in order to ensure the light divergence performance of the concave lens 310, the concave lens 310 can be arranged parallel to the photovoltaic module 100.

[0033] In specific implementation, there are various implementation schemes for the selection of the main shaft 400 during setting. For example, in order to ensure the stable connection between the main shaft 400 and the fixing mechanism and increase the contact area with the fixing mechanism, the cross-section of the main shaft 400 can be square, thereby effectively improving the working reliability of the photovoltaic tracker rotor.

[0034] In summary, the rotor of the photovoltaic tracker with components densely arranged provided by the present invention includes a main shaft 400, a plurality of photovoltaic modules 100, a fixing mechanism and a light divergence mechanism 300 provided in cooperation with the photovoltaic modules 100. The plurality of photovoltaic modules 100 are fixedly connected to the top of the main shaft 400 through the fixing mechanism and arranged in sequence. Each photovoltaic module 100 has an inclination angle set facing the light incident direction; along the light incident direction, the front end of each photovoltaic module 100 located behind extends into the shadow coverage area on the back of the front photovoltaic module 100, and a light divergence mechanism 300 is provided at the rear end of each photovoltaic module 100 to diverge the received incident light to the shadow coverage area. Compared with the flat single tilt angle scheme of the existing photovoltaic tracker, the rotor of the photovoltaic tracker with components densely arranged creatively arranges the light divergence mechanism 300 at the rear end of each photovoltaic module 100, effectively diverging the light to the shadow coverage area behind the module. While shortening the installation spacing of the modules, it also avoids the influence of shadow occlusion on the power generation power of the modules, thereby increasing the installed capacity of the photovoltaic modules 100, improving the site utilization rate, and combined with the trend of continuous reduction of the module price, it can also overall increase the power generation and reduce the system cost.

[0035] The specific embodiments described above have further elaborated on the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic tracker rotor fully covered with components, characterized in that The rotor of the photovoltaic tracker covered with the components includes a photovoltaic module (100), a module fixing mechanism (200), a light diverging mechanism (300), and a main shaft (400), where: A plurality of the photovoltaic modules (100) are arranged in sequence along the main shaft (400), and each of the photovoltaic modules (100) is fixedly connected to the top of the main shaft (400) through the module fixing mechanism (200) and has an inclination angle set facing the light incident direction; At the front end of each of the photovoltaic modules (100) along the light incident direction, it extends into the shadow coverage area of the back of the previous photovoltaic module (100), and at the rear end, there is provided the light diverging mechanism (300), and the light diverging mechanism (300) can diverge the received incident light to the shadow coverage area; The light diverging mechanism (300) includes a concave lens (310) and two lens brackets (320), where: The concave point of the concave lens (310) is located at the center along the light incident direction, and the width is the same as that of the photovoltaic module (100); the two lens brackets (320) are arranged on both sides of the rear end of the photovoltaic module (100), and the concave lens (310) is fixed between the two lens brackets (320); The lens bracket is set as a U-shaped lens bracket (320), and the open side of the U-shaped lens bracket (320) is clamped to the rear end of the photovoltaic module (100), and both sides of the concave lens (310) are fixed by the U-shaped bracket; The module fixing mechanism (200) includes a front bracket (210) and a rear bracket (220), where: The front bracket (210) is arranged at the front end of the photovoltaic module (100) along the light incident direction and has a card slot (211) that fits the photovoltaic module (100) to clamp and fix the photovoltaic module (100) to the main shaft (400); the rear bracket (220) is arranged behind the front bracket (210) along the light incident direction, with a height greater than that of the front bracket (210), and the top is fixedly connected to the bottom of the photovoltaic module (100); Both the front bracket (210) and the rear bracket (220) have bases that fit the top of the main shaft (400), and each base is fixedly connected to the main shaft (400) through a U-shaped bolt (230).

2. The rotor of the photovoltaic tracker with components densely distributed as claimed in claim 1, characterized in that, Wherein, At the front end of each of the photovoltaic modules (100) along the light incident direction, it is aligned with the rear end of the previous photovoltaic module (100).

3. The photovoltaic tracker rotor fully covered with components according to claim 1, characterized in that, Wherein, The concave lens (310) is fixedly connected to the two lens brackets (320) through an EVA light-transmitting adhesive.

4. The photovoltaic tracker rotor with components densely distributed as claimed in claim 1, wherein, Wherein, The rear bracket (220) is arranged perpendicular to the main shaft (400), and the top is connected to the rear end of the bottom of the photovoltaic module (100).

5. The photovoltaic tracker rotor fully covered with components as claimed in claim 1, wherein, Wherein, The concave lens (310) is arranged parallel to the photovoltaic module (100).

6. The photovoltaic tracker rotor with components densely distributed as described in claim 1, wherein, Wherein, The cross-section of the main shaft (400) is square.

Images