Agricultural light complementation photovoltaic greenhouse

Abstract

The utility model provides a kind of agricultural light complementation photovoltaic greenhouse belongs to agricultural light complementation technical field.The photovoltaic greenhouse includes the greenhouse steel structure of slope roof, photovoltaic panel and light adjusting mechanism are arranged on the slope roof with position being mutually staggered, light adjusting mechanism has the electrochromic glass and transparent glass with position being mutually staggered, monochromatic filter is detachably connected on transparent glass, controller and light sensor are further equipped in the inside of greenhouse, controller is electrically connected with light sensor and electrochromic glass respectively, the photovoltaic greenhouse, with photovoltaic power generation and light adjusting mechanism, can realize agricultural light complementation while controlling the light intensity in greenhouse, improve the growth rate and quality of crops while giving consideration to power generation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural-solar complementary technology, and more specifically, to an agricultural-solar complementary photovoltaic greenhouse. Background Technology

[0002] In China, photovoltaic greenhouses, as an innovative agricultural development model, have been widely promoted and applied. Their unique advantage lies in their ability to fully utilize solar energy resources while providing clean energy for agricultural production, achieving a win-win situation for both environmental protection and agriculture.

[0003] The application of photovoltaic greenhouses is also gradually expanding in other parts of China. Especially in regions rich in solar energy resources, such as Qinghai and Gansu, photovoltaic greenhouses have become an important support for local agricultural development. These regions convert solar energy into electricity by installing photovoltaic modules, providing clean energy for agricultural production, reducing production costs, and improving agricultural efficiency. At the same time, photovoltaic greenhouses also provide a favorable growing environment for crops, helping to improve the quality and yield of agricultural products.

[0004] Installing a photovoltaic power generation system on the steel structure of a greenhouse is the most direct and effective way to combine photovoltaic power generation with other technologies. However, existing photovoltaic greenhouses only have the function of generating electricity and lack a dynamic light environment control mechanism. This results in the growth of crops inside the greenhouse being affected during the use of existing photovoltaic greenhouses. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a photovoltaic greenhouse that integrates agriculture and solar power generation, and has a light regulation mechanism. It can control the light intensity inside the greenhouse while realizing agricultural-solar complementarity, thereby improving the growth rate and quality of crops while taking into account power generation efficiency.

[0006] This utility model is implemented as follows:

[0007] A photovoltaic greenhouse integrating agriculture and photovoltaics includes a steel structure, wherein the top of the steel structure has a sloping roof, and photovoltaic panels and a light adjustment mechanism are arranged in an alternating manner on the sloping roof. The light adjustment mechanism has electrochromic glass and transparent glass arranged in an alternating manner. A monochromatic filter is provided on the transparent glass. A controller and a light sensor are also provided inside the greenhouse. The controller is electrically connected to the light sensor and the electrochromic glass respectively.

[0008] In one embodiment of this utility model, the pitched roof faces due south, and the tilt angle of the pitched roof is 20 degrees to 60 degrees.

[0009] In one embodiment of this utility model, the light adjustment mechanism includes a frame, and electrochromic glass and transparent glass are arranged alternately within the frame.

[0010] In one embodiment of this utility model, a magnet is provided at the bottom of the frame near the transparent glass, and ferromagnetic metal layers corresponding to the positions of the magnets are provided at both ends of the monochrome filter.

[0011] In one embodiment of this utility model, the light adjustment mechanism includes a frame, a transparent glass inside the frame, an electric folding sunshade below the frame, and a controller electrically connected to the electric folding sunshade.

[0012] In one embodiment of this utility model, the light adjustment mechanism includes a frame, and electrochromic glass is disposed inside the frame.

[0013] In one embodiment of this utility model, the photovoltaic panel provides the electrical energy required for the controller, light sensor, and light adjustment mechanism to operate.

[0014] In one embodiment of this utility model, a light-transmitting and heat-insulating film is provided around the outer perimeter of the greenhouse steel structure.

[0015] In one embodiment of this utility model, the color of the monochrome filter is set according to the type of crop in the photovoltaic greenhouse.

[0016] In one embodiment of this utility model, the color of the monochrome filter is set according to the type and location distribution of crops in the photovoltaic greenhouse.

[0017] The beneficial effects of this utility model are:

[0018] 1. Installing a sloping roof on the top of the greenhouse steel structure and then installing photovoltaic panels on the sloping roof can improve the power generation efficiency of the photovoltaic panels.

[0019] 2. The light adjustment mechanism can adjust the light intensity inside the photovoltaic greenhouse based on the data captured by the light sensor, so that the light intensity inside the photovoltaic greenhouse is suitable for crop growth.

[0020] 3. The monochrome filter on the light adjustment mechanism can filter the light. Different monochrome filters can be replaced with different colors according to different crops to make the filtered light more suitable for crop growth. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1A schematic diagram of the structure of a photovoltaic greenhouse provided for an embodiment of this utility model;

[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 An exploded view of the light adjustment mechanism provided for an embodiment of this utility model (Example 1);

[0025] Figure 4 A schematic diagram of the bottom structure of the light adjustment mechanism provided for an embodiment of this utility model (Example 1);

[0026] Figure 5 A schematic diagram of the bottom structure of the light adjustment mechanism provided for an embodiment of this utility model (Embodiment 2);

[0027] Figure 6 A schematic diagram of the bottom structure of the light adjustment mechanism provided for an embodiment of this utility model (Embodiment 3);

[0028] Figure 7 A communication block diagram of a photovoltaic greenhouse provided for an embodiment of this utility model.

[0029] In the diagram: 1. Greenhouse steel structure; 11. Sloping roof; 12. Translucent and heat-insulating film; 2. Photovoltaic panel; 3. Light adjustment mechanism; 31. Frame; 32. Electrochromic glass; 33. Transparent glass; 34. Magnet; 35. Monochrome filter; 36. Ferromagnetic metal layer; 4. Light sensor; 5. Controller. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Figures 1-2The diagram shows a schematic of the structure of the photovoltaic greenhouse provided by this embodiment of the present invention. It can be seen that the photovoltaic greenhouse is composed of multiple greenhouse steel structures 1 connected to each other. It should be noted that the multiple greenhouse steel structures 1 can be in a state of interconnection or in a state of separation. When they are in a state of separation, a light-transmitting and heat-insulating film 12 is wrapped around the outside of a single greenhouse steel structure 1. When they are in a state of interconnection, a light-transmitting and heat-insulating film 12 is wrapped around the outside of the overall greenhouse steel structure 1.

[0033] Among them, the light-transmitting and heat-insulating film 12 is used to transmit light and maintain the temperature and humidity inside the photovoltaic greenhouse.

[0034] The pitched roof 11 of the steel structure 1 of the greenhouse faces due south, and the tilt angle of the pitched roof 11 is 20 degrees to 60 degrees. The tilt angle of the pitched roof 11 needs to be selected according to its location.

[0035] In one example, if the location is in the Beijing area, the tilt angle is ±10 degrees of the local latitude, such as 39 degrees to 45 degrees.

[0036] In another example, if the location is in Hainan, the tilt angle is ±10 degrees of the local latitude, such as 20 degrees.

[0037] In another example, if the location is in Guangdong, the tilt angle is ±10 degrees of the local latitude, such as 25 degrees.

[0038] In another example, if the location is in Hebei or Shandong, the tilt angle is ±10 degrees of the local latitude, such as 45 degrees.

[0039] Additionally, in regions such as the Southern Hemisphere, the tilt angle is 50 to 60 degrees.

[0040] Setting the tilt angle according to the selected angle can effectively improve the power generation efficiency of photovoltaic panel 2. It should also be noted that the pitched roof 11 needs to maintain an open environment to avoid shading.

[0041] like Figures 1-2 As shown, the photovoltaic panel 2 and the light adjustment mechanism 3 are arranged in an alternating manner on the sloping roof 11 at the top of the greenhouse steel structure 1.

[0042] like Figure 3 As shown, the light adjustment mechanism has electrochromic glass 32 and transparent glass 33 arranged in an alternating manner. The transparent glass 33 is provided with a detachably connected monochromatic filter 35, wherein the function of the monochromatic filter 35 is to filter the light, and the filtered light is beneficial to the growth of crops.

[0043] The color setting for monochrome filter 35 needs to be selected according to the type of crop being grown. For example, if the crop prefers yellow light, then a yellow monochrome filter 35 should be selected.

[0044] Specifically, the color of the monochrome filter 35 is set according to the type of crop in the greenhouse.

[0045] The above settings include the following two scenarios:

[0046] 1. If there is only a single crop in the photovoltaic greenhouse, the color of the monochrome filter 35 is set according to the type of crop in the photovoltaic greenhouse.

[0047] 2. The photovoltaic greenhouse contains a variety of crops. In this case, the color of the monochromatic filter 35 is set according to the type of crop in the area it is irradiated. For example, if the crops in area A prefer yellow light and the crops in area B prefer green light, then the color of the monochromatic filter 35 in area A is set to yellow and the color of the monochromatic filter 35 in area B is set to green.

[0048] like Figures 3-6 As shown, the light adjustment mechanism includes a frame 31, an electrochromic glass 32 and a transparent glass 33 arranged alternately within the frame 31, wherein a magnet 34 is provided on the bottom side of the frame 31 near the transparent glass 33, and ferromagnetic metal layers 36 corresponding to the positions of the magnet 34 are provided at both ends of the monochromatic filter 35.

[0049] Example 1, as Figures 3-4 As shown, six transparent glass panels 33 and six electrochromic glass panels 32 are arranged alternately within the frame 31. Six removable monochrome filters 35 are provided at the bottom of the frame 31. The bottom of the frame 31 is defined as the side located inside the photovoltaic greenhouse.

[0050] Example 2, as Figure 5 As shown, a transparent glass 33 and an electrochromic glass 32 are interleaved within the frame 31. A removable monochrome filter 35 is provided at the bottom of the frame 31. The bottom of the frame 31 is defined as the side located inside the photovoltaic greenhouse.

[0051] Example 3, as Figure 6 As shown, a transparent glass 33 and two electrochromic glass 32 are arranged alternately within the frame 31. A detachable monochrome filter 35 is provided at the bottom of the frame 31. The bottom of the frame 31 is defined as the side located inside the photovoltaic greenhouse.

[0052] The above-mentioned detachable connection is achieved by magnetic attraction. The specific installation and disassembly process is as follows: after the monochrome filter 35 is brought close to the magnet 34 at the bottom of the frame 31 below the transparent glass 33, the ferromagnetic metal layer 36 and the magnet 34 attract each other magnetically, adsorbing the monochrome filter 35 below and filtering the light passing through the transparent glass 33. During disassembly, the monochrome filter 35 can be removed.

[0053] Among them, the ferromagnetic metal layer 36 is an iron sheet, a cobalt sheet, or a nickel sheet.

[0054] In another embodiment, the light adjustment mechanism includes a frame 31, with a transparent glass 33 inside the frame 31, and an electrically folding sunshade below the frame 31. The controller 5 is electrically connected to the electrically folding sunshade, which is not shown in the accompanying drawings.

[0055] In this embodiment, the electrically folding sunshade replaces the function of the electrochromic glass 32, and the monochromatic filter 35 and its associated mechanisms are removed, so the photovoltaic greenhouse only has the function of adjusting the light intensity.

[0056] In another embodiment, the light adjustment mechanism includes a frame 31, inside which is provided an electrochromic glass 32.

[0057] In this embodiment, the monochromatic filter 35 and its associated mechanisms are removed, and the photovoltaic greenhouse only has the function of adjusting light intensity.

[0058] like Figure 7 As shown, a controller 5 and a light sensor 4 are also installed inside the greenhouse. The controller 5 is electrically connected to the light sensor 4 and the electrochromic glass 32, respectively.

[0059] Multiple light sensors 4 can be set up and evenly distributed in the photovoltaic greenhouse. The signal input terminal of the controller 5 is connected to the signal output terminal of the light sensor 4. The controller 5 controls the transparency of the electrochromic glass 32 in the corresponding area according to the light intensity of different areas based on the signal captured by the light sensor 4, thereby controlling the light intensity in the photovoltaic greenhouse.

[0060] It should be noted that the controller 5 is an 89C52 microcontroller, and the light sensor 4 is a BH1750FVI. The 89C52 microcontroller identifies the temperature by determining whether the level of the BH1750FVI pin is high or low, without relying on software. Similarly, the 89C52 microcontroller controls the transparency of the electrochromic glass 32 based on the level output of the BH1750FVI pin.

[0061] The controller 5 uses existing technology to control the electrochromic glass 32 by collecting signals from the light sensor 4. It also includes a power module and a driver chip for driving the operation of the electrochromic glass 32. Since it uses existing technology, the details of how to drive and control the electrochromic glass 32 to change its transparency based on the signals from the light sensor 4 will not be elaborated here.

[0062] The photovoltaic panel 2 provides the electrical energy required for the operation of the controller 5, the light sensor 4, and the light adjustment mechanism. The photovoltaic panel 2 generates electricity to provide power to the light sensor 4 and the light adjustment mechanism, which is an existing technology. The working principle of the photovoltaic panel 2 supplying power to the controller 5, the light sensor 4, and the light adjustment mechanism will not be described in detail here, as those skilled in the art should be clear about this.

[0063] It should be noted that the specific models and specifications of the photovoltaic panel 2, electrochromic glass 32, controller 5 and light sensor 4 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0064] The power supply and operating principle of the photovoltaic panel 2, electrochromic glass 32, controller 5 and light sensor 4 are clear to those skilled in the art and will not be described in detail here.

[0065] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A photovoltaic greenhouse integrating agriculture and solar power, comprising a steel structure for the greenhouse (1), wherein, The greenhouse steel structure (1) has a sloping roof (11) on top. The sloping roof (11) is characterized by having photovoltaic panels (2) and a light adjustment mechanism (3) arranged in an alternating manner. The light adjustment mechanism has electrochromic glass (32) and transparent glass (33) arranged in an alternating manner. The transparent glass (33) is provided with a detachably connected monochromatic filter (35). Inside the greenhouse, there is also a controller (5) and a light sensor (4). The controller (5) is electrically connected to the light sensor (4) and the electrochromic glass (32) respectively.

2. The photovoltaic greenhouse according to claim 1, characterized in that, The pitched roof (11) faces due south, and the tilt angle of the pitched roof (11) is 20 degrees to 60 degrees.

3. The photovoltaic greenhouse according to claim 1, characterized in that, The light adjustment mechanism includes a frame (31), electrochromic glass (32) and transparent glass (33) arranged alternately within the frame (31).

4. The photovoltaic greenhouse according to claim 3, characterized in that, A magnet (34) is provided on the bottom side of the frame (31) near the transparent glass (33), and ferromagnetic metal layers (36) corresponding to the positions of the magnet (34) are provided at both ends of the monochrome filter (35).

5. The photovoltaic greenhouse according to claim 1, characterized in that, The light adjustment mechanism includes a frame (31), a transparent glass (33) inside the frame (31), an electric folding sunshade below the frame (31), and a controller (5) electrically connected to the electric folding sunshade.

6. The photovoltaic greenhouse according to claim 1, characterized in that, The light adjustment mechanism includes a frame (31) and an electrochromic glass (32) is provided inside the frame (31).

7. The photovoltaic greenhouse according to claim 1, characterized in that, The photovoltaic panel (2) provides the electrical energy required for the controller (5), the light sensor (4), and the light adjustment mechanism to operate.

8. The photovoltaic greenhouse according to any one of claims 1 to 7, characterized in that, The outer perimeter of the greenhouse steel structure (1) is covered with a light-transmitting and heat-insulating film (12).

9. The photovoltaic greenhouse according to any one of claims 1 to 7, characterized in that, The color of the monochrome filter (35) is set according to the type of crop in the photovoltaic greenhouse.

10. The photovoltaic greenhouse according to any one of claims 1 to 7, characterized in that, The color of the monochrome filter (35) is set according to the type and location distribution of crops in the photovoltaic greenhouse.

Images