A solar panel structure with high sunlight utilization and space utilization

Abstract

The invention discloses a solar panel structure with high sunlight utilization rate and space utilization rate. The solar panel structure is a pagoda-shaped tree structure as a whole; it comprises an outer first light absorption layer, an outer second light absorption layer, an outer third light absorption layer, an outer fourth light absorption layer and a bottom light absorption layer which are arranged in sequence from top to bottom; the solar panels in the outer first light absorption layer and the outer second light absorption layer and the solar panels in the outer third light absorption layer and the outer fourth light absorption layer all form an angle of 30° with the vertical direction and enclose an octahedral ellipsoid shape; the bottom light absorption layer is a plurality of solar panels laid flat along a horizontal plane; an inner first light absorption layer is arranged inside the outer second light absorption layer; and an inner second light absorption layer is arranged below the inner first light absorption layer; the invention builds miniaturized solar panels into a specific solar panel tree structure to achieve the purpose of localizing the irradiated sunlight inside the tree structure, thereby improving the absorption rate of sunlight by the solar panel.

Description

Technical Field

[0001] The invention belongs to the technical field of solar panels, and in particular relates to a solar panel structure with high sunlight utilization and space utilization. Background Art

[0002] Solar energy is a clean, renewable energy source with great potential in the future energy sector. Solar panels can convert light energy into electrical energy. At present, there is a certain degree of inefficiency in the utilization rate of sunlight in solar panels. The utilization rate of sunlight in solar panels refers to the efficiency of converting sunlight into usable electrical energy. The solar panels used on the market are mainly silicon-based solar panels, and their light utilization rate is usually between 15% and 20%, which means that only 15% to 20% of sunlight can be converted into electrical energy, and the rest of the energy will be reflected, scattered or absorbed and cannot be effectively used. How to effectively improve the light utilization rate of solar panels has always been a hot topic of research.

[0003] In addition, low space utilization is also one of the challenges faced by solar panels. Traditional solar panels usually occupy a large area, and the amount of sunlight received in a limited space is extremely limited. Secondly, the installation layout of solar panels is usually single-sided and cannot effectively utilize solar energy from other angles. The shape and size of solar panels are usually fixed and cannot adapt to different buildings or environments. How to improve the space utilization of solar panels and thus improve the light utilization is also a major difficulty. Summary of the invention

[0004] The purpose of the present invention is to provide a solar panel structure with high sunlight utilization and space utilization, which can improve the light utilization of the solar panel by adjusting the space utilization, thereby maximizing the utilization of sunlight.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A solar panel structure with high sunlight utilization and space utilization, wherein the solar panel structure is a pagoda-shaped tree structure as a whole; it comprises an outer first light absorbing layer, an outer second light absorbing layer, an outer third light absorbing layer, an outer fourth light absorbing layer and a bottom light absorbing layer arranged in sequence from top to bottom,

[0007] The first outer light absorbing layer and the second outer light absorbing layer are mirror-imaged along a horizontal plane, the third outer light absorbing layer and the fourth outer light absorbing layer are mirror-imaged along a horizontal plane, and the solar panels in the first outer light absorbing layer and the second outer light absorbing layer are at an angle of 30° with the vertical direction and enclose an octahedral ellipsoid shape A, the solar panels in the third outer light absorbing layer and the fourth outer light absorbing layer are at an angle of 30° with the vertical direction and enclose an octahedral ellipsoid shape B, and the major axis and the minor axis of the octahedral ellipsoid shape A are both greater than the major axis and the minor axis of the octahedral ellipsoid shape B;

[0008] The bottom light-absorbing layer is a plurality of solar panels laid flat along a horizontal plane;

[0009] An inner light absorbing layer is arranged inside the outer two light absorbing layers, and the inner light absorbing layer includes eight solar cell panels parallel to the outer light absorbing layer;

[0010] An inner second light absorbing layer is disposed below the inner first light absorbing layer. The inner second light absorbing layer includes four solar panels. The four solar panels are all at an angle of 30° to the vertical direction and are parallel to the solar panels corresponding to the outer second light absorbing layers.

[0011] Furthermore, the inner light-absorbing layer is provided with four solar cell panels which are arranged at an angle of 60° with the vertical direction to form a light-absorbing layer A in the shape of a pentahedral cone.

[0012] Furthermore, four solar cell panels are arranged at the center of the octahedral ellipsoid shape B, which form a pentahedral cone-shaped light absorption layer B at an angle of 60° with the vertical direction.

[0013] Furthermore, the bottom light absorbing layer includes seven horizontally laid solar panels.

[0014] The present invention achieves the purpose of localizing the sunlight irradiated into the tree structure by building miniaturized solar panels into a specific solar panel tree structure. At the same time, materials that absorb light of different wavelengths are used for solar panels with different light-absorbing layers to achieve the purpose of absorbing the entire visible light band, thereby improving the absorption rate of sunlight by the solar panel. The sunlight localized inside the structure can be absorbed and utilized through multiple reflections, scattering, and the front and back sides of the solar panel can simultaneously absorb sunlight, greatly improving the utilization rate of sunlight. In order to ensure that sunlight can be incident at any time into the solar cell tree, a solar tracking system is installed at its bottom. According to local characteristics, the solar tree is always facing the sun, thereby improving the utilization rate of sunlight. Secondly, the area occupied by the solar tree is greatly reduced compared to traditional solar panels, greatly improving the space utilization rate, and more solar panels can be laid in a limited space.

[0015] Working principle of solar panels: When sunlight shines on solar panels, the photon energy is absorbed by the semiconductor material on the solar panel, which excites the electrons in the semiconductor and causes them to jump to the conduction band, thereby generating positive and negative charge separation. These positive and negative charges generate an electric field inside the semiconductor. When an external circuit is connected to the solar panel, the positive and negative charges flow to form a current, thereby generating electrical energy. In this way, solar panels convert light energy into electrical energy, realizing the use of renewable energy.

[0016] Localized sunlight principle: Multiple reflections and refractions of sunlight can be achieved by rationally designing and constructing surfaces and structures with high reflectivity and high refractive index. When sunlight hits such a surface or structure, part of the light will be reflected back into the structure, while another part will be refracted into the structure. Such reflection and refraction processes can occur multiple times inside the structure, making the path of sunlight longer and increasing the interaction between light and materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the solar cell panel described in Example 1 of the present invention.

[0018] Figure 2 for Figure 1 , (A) is the overall cross-sectional view, (B) is the outer layer cross-sectional view, and (C) is the inner layer cross-sectional view.

[0019] Figure 3 for Figure 2 (A) The energy distribution diagram of the corresponding position, (b) is Figure 2 (A) The energy distribution diagram of the b position line, (c) Figure 2 (A) The energy distribution diagram of the c position line, (d) Figure 2 (A) The energy distribution of the d position line, (e) Figure 2 (A) Energy distribution diagram of the e-position line.

[0020] Figure 4 This is a schematic diagram of the structure of the solar cell panel described in Example 2 of the present invention.

[0021] Figure 5 for Figure 4 , (A) is the overall cross-sectional view, (B) is the outer layer cross-sectional view, and (C) is the inner layer cross-sectional view.

[0022] Figure 6 for Figure 5 (A) The energy distribution diagram of the corresponding position, (b) is Figure 5 (A) The energy distribution diagram of the b position line, (c) Figure 5 (A) The energy distribution diagram of the c position line, (d) Figure 5(A) The energy distribution of the d position line, (e) Figure 5 (A) Energy distribution diagram of the e-position line.

[0023] Figure 7 (b) is the energy distribution diagram of the conventional flat solar panel structure, (c) is the energy distribution diagram of the surface of the solar panel, and (d) is the energy distribution diagram of the bottom surface of the solar panel.

[0024] Markings in the figure: 11, outer first absorption layer; 12, outer second absorption layer; 13, outer third absorption layer; 14, outer fourth absorption layer; 15, bottom absorption layer; 21, inner first absorption layer; 22, inner second absorption layer; 31, absorption layer A; 32, absorption layer B. DETAILED DESCRIPTION

[0025] Example 1

[0026] This embodiment provides a solar panel structure with high sunlight utilization and space utilization, wherein the solar panel structure is an inverted pagoda tree structure as a whole; Figure 1 and Figure 2 As shown, the solar panel structure includes an outer first light absorbing layer 11, an outer second light absorbing layer 12, an outer third light absorbing layer 13, an outer fourth light absorbing layer 14 and a bottom light absorbing layer 15 arranged in sequence from top to bottom, and the outer first light absorbing layer 11 and the outer second light absorbing layer 12 are arranged in a mirror image along a horizontal plane. Taking the outer first light absorbing layer 11 as an example, the outer first light absorbing layer 11 includes eight solar panels, each of which is 30° with the vertical direction, and the outer first light absorbing layer 11 and the outer second light absorbing layer 12 enclose an octahedral ellipsoid. Shape A; the outer three light absorbing layers 13 and the outer four light absorbing layers 14 are mirror images along the horizontal plane, and the structures of the outer three light absorbing layers 13 and the outer first light absorbing layer 11 are basically the same, the difference is that the size of the solar cell panel used is smaller than that of the outer first light absorbing layer, and then the outer three light absorbing layers 13 and the outer four light absorbing layers 14 enclose an octahedral ellipsoid shape B, so that the major axis and the minor axis of the octahedral ellipsoid shape B are smaller than the major axis and the minor axis of the octahedral ellipsoid shape A; the bottom light absorbing layer 15 includes seven horizontally tiled solar cells.

[0027] In order to further increase the utilization rate of sunlight and space utilization, an inner light absorbing layer is provided inside the outer two light absorbing layers 12, and the inner light absorbing layer 21 includes eight solar cell panels parallel to the outer light absorbing layer 11; an inner two light absorbing layer 22 is provided below the inner light absorbing layer 21, and the inner two light absorbing layer 22 includes four solar cell panels, and the four solar cell panels are all at an angle of 30° with the vertical direction and are parallel to the solar panels corresponding to the outer two light absorbing layers 12.

[0028] Example 2

[0029] The solar cell panel structure with high sunlight utilization and space utilization provided in this embodiment is basically the same as the structure of embodiment 1, except that four solar cell panels are respectively arranged in the center of the octahedral ellipsoid shape B and in the inner light absorption layer 21, forming a pentahedral cone-shaped light absorption layer A31 and a light absorption layer B32 at an angle of 60° with the vertical direction. Figure 4 and Figure 5 shown.

[0030] The purpose of this embodiment is to increase the light path. The sunlight can be reflected multiple times and then absorbed and utilized. Considering that more low-frequency light will be transmitted to the lower layer, different materials can be used for different light-absorbing layers to absorb sunlight of different wavelengths to broaden the absorption spectrum of solar panels for sunlight, thereby improving the sunlight utilization rate and space utilization rate of solar panels.

[0031] Figure 1 to Figure 5 Only the position of the solar panel is shown in the figure, and the structure of the mounting frame cannot be drawn. The solar panel in the figure is installed according to the mounting frame and bracket of the solar panel in the prior art to form a product structure.

[0032] The solar cell tree modeling was performed using FDTD Solutions software. The wavelength range of the simulated light source used was 400nm to 700nm. The sunlight was incident from the top of the solar cell tree structure. The simulation results are as follows:

[0033] like Figure 3 As shown, the energy distribution diagram of the field in different layers inside the solar panel structure of Example 1 under simulated natural light conditions, from Figure 3 It can be clearly seen that the sunlight is localized inside the material. After the sunlight enters the material, it is reflected, refracted, absorbed and utilized multiple times in the first and second outer light-absorbing layers. Part of the light will then enter the third outer light-absorbing layer and the outer filament light-absorbing layer, and be utilized again in the third outer light-absorbing layer and the outer filament light-absorbing layer, thereby improving the utilization rate of sunlight by solar panels.

[0034] like Figure 6 As shown, the energy distribution diagram of the field in different layers inside the solar panel structure of Example 2 under simulated natural light conditions is Figure 1 By comparing the structures shown, it can be found that the localized ability of the internal light-absorbing layer A and the light-absorbing layer B for sunlight is further enhanced. The sunlight is reflected and refracted multiple times inside the structure and absorbed and utilized multiple times, which improves the utilization rate of sunlight by solar panels. Since the solar panel shown is a double-sided structure, the area that can absorb sunlight per unit space is increased. The tree-like structure occupies a small area, which greatly improves the space utilization rate of solar panels.

[0035] Most of the solar panels we see in daily life are laid out in a large area on the surface to receive sunlight. The sunlight is absorbed once on the surface of the panel and then reflected, which makes the utilization efficiency of sunlight low. Figure 7 As shown, the two monitors placed in the upper and lower spaces of the flat solar panel model simulate natural light. It can be clearly seen that the sunlight is not localized. It is found that the intensity of localized sunlight in traditional solar panels is weak, and the localization effect of sunlight is not achieved. The sunlight is reflected once absorbed and utilized by the solar panel, and the utilization rate of sunlight is low. At the same time, due to its flat single absorption layer, the area of ​​sunlight absorbed per unit space is small, which reduces the space utilization rate of the solar panel.

[0036] In summary, compared with the flat structure of traditional flat solar panels, the tree-like structure of solar panels improves the utilization of sunlight and space utilization by combining localized multi-light-absorbing layers of sunlight with the double-sided solar panel method.

[0037] The above description is only a preferred implementation manner of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be included in the protection scope of the present invention.

Claims

1. A solar panel structure with high sunlight utilization and space utilization, characterized in that: The solar panel structure is a pagoda-shaped tree structure as a whole; it includes an outer first light absorbing layer, an outer second light absorbing layer, an outer third light absorbing layer, an outer fourth light absorbing layer and a bottom light absorbing layer arranged in sequence from top to bottom, The first outer light absorbing layer and the second outer light absorbing layer are mirror-imaged along a horizontal plane, the third outer light absorbing layer and the fourth outer light absorbing layer are mirror-imaged along a horizontal plane, and the solar panels in the first outer light absorbing layer and the second outer light absorbing layer are at an angle of 30° with the vertical direction and enclose an octahedral ellipsoid shape A, the solar panels in the third outer light absorbing layer and the fourth outer light absorbing layer are at an angle of 30° with the vertical direction and enclose an octahedral ellipsoid shape B, and the major axis and the minor axis of the octahedral ellipsoid shape A are both greater than the major axis and the minor axis of the octahedral ellipsoid shape B; The bottom light-absorbing layer is a plurality of solar panels laid flat along a horizontal plane; An inner light absorbing layer is arranged inside the outer two light absorbing layers, and the inner light absorbing layer includes eight solar cell panels parallel to the outer light absorbing layer; An inner second light absorbing layer is disposed below the inner first light absorbing layer. The inner second light absorbing layer includes four solar panels. The four solar panels are all at an angle of 30° to the vertical direction and are parallel to the solar panels corresponding to the outer second light absorbing layers.

2. A solar panel structure with high sunlight utilization and space utilization according to claim 1, characterized in that: The inner light-absorbing layer is provided with four solar cell panels which are arranged at an angle of 60° with the vertical direction to form a light-absorbing layer A in the shape of a pentahedral cone.

3. A solar panel structure with high sunlight utilization and space utilization according to claim 1 or 2, characterized in that: The center of the octahedral ellipsoid shape B is provided with four solar cell panels which are arranged at an angle of 60° with the vertical direction to form a pentahedral cone-shaped light absorption layer B.

4. The solar cell panel structure with high sunlight utilization and space utilization according to claim 1, characterized in that: The bottom light-absorbing layer includes seven horizontally laid solar cell panels.

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