A gradient light transmission photovoltaic system

Abstract

The present invention relates to a gradual light transmission photovoltaic system, and relates to the technical field of photovoltaic equipment, including a door-type frame, the door-type frame includes opaque walls located on both sides, a photovoltaic frame is arranged on the top of the opaque wall, a photovoltaic panel is laid on the photovoltaic frame, the photovoltaic panel is connected to a controller, and the controller is connected to an energy storage device; photovoltaic cells and light transmission areas are arranged on the photovoltaic panels, and the proportion of the light transmission area to the total area of ​​the photovoltaic panel is the light transmittance, and the light transmittance changes at least twice from one opening of the door-type frame to another opening, and the minimum light transmittance of the photovoltaic panel is equal to or lower than 10%. A gradual light transmission photovoltaic system provided by the present invention slows down the change of light intensity at the entrance and exit of the tunnel by arranging multiple layers of photovoltaic panels with gradually changing light transmittance at the entrance or exit of the tunnel, so that the light intensity received by the human eye changes slowly, thereby solving the problems of "black hole effect" and "white hole effect".

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic equipment, and in particular to a gradient light-transmitting photovoltaic system. Background Art

[0002] When entering a dark tunnel from a bright external environment, the human eye needs time to adapt to the light change, which will cause a brief loss of vision, known as the "black hole effect" and the "white hole effect". The "black hole effect" refers to the light going from bright to dark when entering a tunnel, and the eyes cannot adapt all of a sudden, and it is pitch black. At this time, the tunnel entrance is like a black hole. The "white hole effect" refers to the light suddenly going from dark to bright when coming out of the tunnel, the pupil shrinks rapidly, and the human eye sees a white light. The fundamental reason is that the intensity of the light at the human eye and the light at the person's sight change too much, so a technology that can slow down the speed of light change is needed. Summary of the invention

[0003] The embodiment of the present invention provides a gradient transmittance photovoltaic system to solve the problem of "black hole effect" and "white hole effect" caused by too fast light changes due to setting a photovoltaic panel group with gradually changing transmittance in the prior art.

[0004] In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

[0005] A gradient light-transmitting photovoltaic system comprises a door-shaped frame, a photovoltaic panel is laid on the top of the door-shaped frame, the photovoltaic panel is connected to a controller, and the controller is connected to an energy storage device; photovoltaic cells and light-transmitting areas are arranged on the photovoltaic panel, the proportion of the light-transmitting area to the total area of ​​the photovoltaic panel is the light transmittance, the light transmittance changes at least twice from one opening to another of the door-shaped frame, and the minimum light transmittance of the photovoltaic panel is equal to or lower than 10%.

[0006] Furthermore, the light transmittance of the photovoltaic panel is at least one of 100%, 80%, 60%, 40%, 20%, 10%, and 5%.

[0007] Furthermore, the door-shaped frame includes opaque walls on both sides, a connecting frame with an excessive bend is provided on the top of the opaque wall, and a horizontally or inclined photovoltaic frame is provided between the connecting frames on both sides, and photovoltaic panels are laid on the photovoltaic frame.

[0008] Furthermore, the photovoltaic frame is connected to the edge of the photovoltaic panel, and the photovoltaic frame and the photovoltaic panel are connected by double-sided tape. A pressure strip is arranged at the gap between adjacent photovoltaic panels, and the pressure strip is fixedly connected to the photovoltaic frame by weather-resistant adhesive and self-tapping screws.

[0009] Furthermore, an object sensing device is provided on the inner side wall of the bottom of the opaque wall, the object sensing device is connected to a controller, and the controller is connected to a lighting device.

[0010] Furthermore, an electric curtain is provided on the connecting frame, and the electric curtain includes an opaque curtain, a movable frame, a slide rail, and a driving device. The driving device is fixed on the door-shaped frame. The two ends of the curtain are respectively connected to the movable frame and the driving device. The two ends of the movable frame are both slidably connected to the slide rail, and the driving device drives the movable frame to slide along the slide rail.

[0011] Furthermore, the photovoltaic frame is provided with a fan blade device, and the fan blade device includes an electric control push rod, a connecting rod, and a rotating fan blade. The rotating fan blade is an opaque fan blade. The electric control push rod is electrically connected to a controller, and the fixed end of the electric control push rod is rotatably connected to the photovoltaic frame. The push rod end of the electric control push rod is connected to the connecting rod. The rotating side of the rotating fan blade is provided with a connecting head that is perpendicular to the connecting rod and rotatably connected, and a rotating head that is rotatably connected to the photovoltaic frame. Moving the connecting head can enable the rotating fan blade to rotate with the rotating head as the center.

[0012] The embodiments of the present invention have the following advantages:

[0013] A gradient transmittance photovoltaic system provided by the present invention slows down the change of light intensity at the tunnel entrance or exit by arranging multiple layers of photovoltaic panels with gradually changing transmittance at the tunnel entrance or tunnel exit, so that the intensity of light received by the human eye changes slowly, thereby solving the problems of "black hole effect" and "white hole effect"; and the photovoltaic panels can convert light energy into electrical energy to power electrical equipment such as street lights and warning lights inside or outside the tunnel, thereby achieving the effect of energy saving and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0016] Figure 1A product structure diagram of a gradient light transmission photovoltaic system applied to a tunnel entrance provided by an embodiment of the present invention;

[0017] Figure 2 A system structure diagram of a gradient light transmission photovoltaic system provided by an embodiment of the present invention;

[0018] Figure 3 An enlarged diagram of the connection between a photovoltaic panel and a photovoltaic frame in a gradient light-transmitting photovoltaic system provided by an embodiment of the present invention;

[0019] Figure 4 A structural diagram of an electric-controlled curtain in a gradient light-transmitting photovoltaic system provided by an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of the operation of a fan blade device in a gradient light transmission photovoltaic system provided by an embodiment of the present invention, in which the photovoltaic panel is deleted;

[0021] Figure 6 for Figure 5 A magnified view of the middle fan blade device;

[0022] Figure 7 This is a diagram of the connection structure between the fan device and the photovoltaic panel. The black part of the photovoltaic panel in the figure is the battery, and the rest is the light-transmitting area;

[0023] Figure 8 A system structure diagram of another gradient light transmission photovoltaic system provided in an embodiment of the present invention.

[0024] In the figure:

[0025] 1. Door-type frame; 2. Photovoltaic panel; 3. Controller; 4. Energy storage device; 5. State Grid; 6. Transformer; 7. Electrical equipment; 8. Low-voltage power distribution cabinet; 9. Tunnel; 10. Wall; 11. Connecting frame; 12. Photovoltaic frame; 13. Double-sided tape; 14. Layering; 15. Weather-resistant glue; 16. Self-tapping screws; 17. Object sensing device; 18. Light sensor; 19. Slide rail; 20. Curtain; 21. Servo motor; 23. Rotating shaft; 24. Movable frame; 25. Counterweight; 26. Electric push rod; 27. Linkage rod; 28. Rotating fan blades; 29. ​​Connector; 30. Rotating head. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-2 As shown, a gradual light transmission photovoltaic system is applied to places where the light changes too much, such as the exit or entrance of a tunnel 9, to alleviate the speed and amplitude of light changes. It includes a door-type frame 1, a photovoltaic panel 2 is laid on the top of the door-type frame 1, the photovoltaic panel 2 is connected to a controller 3, the controller 3 is connected to an energy storage device 4, and the photovoltaic panel 2 converts light energy into electrical energy and stores it in the storage device. The energy storage device 4 is installed on the door-type frame 1, and the energy storage device 4 can store the excess electricity generated by the photovoltaic panel 2, which can ensure the power supply of lighting and other power systems in the tunnel 9 in the case of dark or rainy days. A low-voltage power distribution cabinet 8 is also provided on the door-type frame 1, and a low-voltage side opening and closing switch and a load manual switch and an automatic switch of the power-consuming equipment 7 are installed in the low-voltage power distribution cabinet 8, which can realize the functions of power failure repair and equipment maintenance.

[0028] The controller 3 is also connected to the transformer 6 and connected to the national grid 5. For example, a pole support of the national grid 5 is provided outside the photovoltaic system, and a transformer 6 and a national high-voltage cable are installed on the pole support. The low-voltage side power of the photovoltaic power distribution cabinet is converted into high-voltage power for grid connection through the transformer 6. When the power generated by the photovoltaic panel 2 meets the lighting system and fills the power inside the energy storage container, the excess power will be connected to the national grid 5 to achieve power profit. The controller 3 is also connected to the power supply system in the tunnel 9 to supply power to the electrical equipment 7 in the tunnel 9. If a lighting system and other power systems are provided in the tunnel 9, the power generated by the photovoltaic power generation can be used for power supply, so that the internal lighting and other equipment of the tunnel 9 can be powered without the need for power supply from the national grid 5, so that the lighting and power can be self-generated and used.

[0029] The photovoltaic panel 2 is provided with photovoltaic cells and light-transmitting areas, the photovoltaic cells are not light-transmitting, and the photovoltaic panel is fixed on a transparent plate, that is, the area on the photovoltaic panel 2 that is not the photovoltaic cell is the light-transmitting area, and the proportion of the light-transmitting area to the total area of ​​the photovoltaic panel is the light transmittance, and the light transmittance changes at least twice from one opening of the portal frame to another opening, and the minimum light transmittance of the photovoltaic panel is equal to or lower than 10%. According to the different requirements of the tunnel entrance and exit, the direction of light transmittance change is different. For example, at the entrance of tunnel 9, the light transmittance gradually decreases from the end of the portal frame 1 away from the tunnel entrance to the end where the portal frame 1 is connected to the tunnel entrance, so that the light transmittance gradually decreases from the external entrance to a level similar to the light intensity in the tunnel 9; on the contrary, at the exit of tunnel 9, the direction of light transmittance change is from the end where the portal frame 1 is connected to the tunnel entrance to the end of the portal frame 1 away from the tunnel entrance, so that the light transmittance outside the tunnel 9 gradually increases to a level similar to the light intensity outside. In this technology, the light transmittance is the area ratio of the “light-transmitting area not blocked by photovoltaic cells” on the photovoltaic panel 2 to the “total area of ​​the photovoltaic panel 2”.

[0030] The light transmittance of the photovoltaic panel 2 changes at least twice. The light in the tunnel 9 is not natural light, but mainly comes from lamplight. Therefore, the light transmittance outside needs to be reduced to a very low level. This technology eventually reduces the light transmittance of the photovoltaic panel 2 to equal to or lower than 10%. If it is the exit of the tunnel 9, the light intensity at the exit of the tunnel 9 needs to be gradually increased. Therefore, the light transmittance of the photovoltaic panel 2 at the entrance of the tunnel 9 needs to be equal to or lower than 10%, and then the light transmittance gradually increases as it gradually moves away from the entrance of the tunnel 9. In this technology, it is preferred that two or three changes occur, and the light transmittance of the photovoltaic panel 2 is at least one of 100%, 80%, 60%, 40%, 20%, 10%, and 5%, respectively. For example, the three reductions are 100%-60%-40%-10%, respectively, and the two reductions are 100%-50%-10%.

[0031] The door-shaped frame 1 includes an opaque wall 10 arranged at the bottom of both sides, and the opaque wall 10 is used to support the door-shaped frame 1, that is, the opaque wall 10 is vertically arranged on both sides of the road at the tunnel entrance. A sensing device 17 is arranged on the inner side wall of the bottom of the opaque wall 10, and the sensing device 17 is connected to the controller 3, and the controller 3 is connected to the lighting device. When the sensing device 17 detects that a vehicle enters the tunnel 9, the sensing signal is sent to the controller 3, and the controller 3 can turn on the lighting system in the tunnel 9, and when the vehicle leaves the tunnel 9, the lighting system in the tunnel 9 can be turned off, so as to achieve the effect of energy saving.

[0032] like Figure 3 As shown, the photovoltaic panels 2 are laid on the photovoltaic frame 12, and the photovoltaic frame 12 is connected to the edges of the photovoltaic panels 2. A number of rectangular frames are provided on the photovoltaic frame 12, and the photovoltaic panels 2 are laid on the rectangular frames. The edges around the photovoltaic panels 2 are in contact with and fixed to the photovoltaic frame 12. The photovoltaic frame 12 and the photovoltaic panels 2 are connected by double-sided tape 13, and a pressure strip 14 is provided in the gap between adjacent photovoltaic panels 2. The pressure strip 14 is fixedly connected to the photovoltaic frame 12 by weather-resistant glue 15 and self-tapping screws 16.

[0033] The top of the opaque wall 10 is provided with a connecting frame 11 that allows the frame to bend excessively, and the top of the connecting frame 11 is connected to a photovoltaic frame 12 that is arranged horizontally or obliquely. The connecting frame may be provided with a sealing glass, which is a light-transmitting glass or an opaque glass. The photovoltaic panel 2 is stably and firmly combined with the photovoltaic frame 12, so that a tunnel sound barrier is formed in the door-shaped frame 1, which can reduce the noise generated by the vehicle during driving, so that the sound environment of the sensitive point can meet the standard, thereby obtaining good social benefits.

[0034] The door-shaped frame 1 is provided with a light sensor 18, which is provided according to the distribution of the light transmittance of the photovoltaic panel 2, that is, at least one group of light sensors 18 is provided in each light transmittance area, and the light sensors 18 are connected to the controller 3, which receives the light intensity data of all the light sensors 18, calculates the light intensity in each light transmittance area, and forms a light transmittance distribution diagram in the door-shaped frame. The light sensors 18 are provided on both sides of the door-shaped frame 1 and at the same height as the eyes of the driver in the vehicle passing through the door-shaped frame 1, and are used to simulate the light intensity data of the driver's eyes passing through the position. The controller 3 can obtain more accurate light intensity data by averaging the light intensity data of the light sensors 18 on both sides.

[0035] Since the transmittance of the photovoltaic panel 2 is fixed, and the same device has different light intensities according to different weather or different regions, it is necessary to set up a device that can adjust the light. For example, in places with strong light intensity such as deserts, Gobi, and the south, the transmittance of the photovoltaic panel 2 needs to be reduced, while in areas with weak light in the north, the transmittance of the photovoltaic panel 2 needs to be increased so that the data detected by the light sensor meets the set light intensity. The device includes the following two types:

[0036] like Figure 4-8 As shown, the sealed glass is opaque glass, and an electric curtain 20 is provided on the connecting frame. The electric curtain 20 includes an opaque curtain 20, a movable frame 24, a slide rail 19, and a driving device. The driving device is electrically connected to the controller 3. The two ends of the curtain 20 are respectively connected to the movable frame 24 and the driving device. Both ends of the movable frame 24 are slidably connected to the slide rail 19. The driving device drives the movable frame 24 to slide along the slide rail 19.

[0037] The driving device includes a servo motor 21 and a rotating shaft 23. The servo motor 21 is connected to a controller 3, and the controller 3 controls the rotation of the servo motor 21. The driving end of the servo motor 21 is connected to the rotating shaft 23, and the rotating shaft 23 is rotatably connected to the connecting frame 11 through a bearing. The upper and lower ends of the curtain 20 are respectively fixedly connected to the rotating shaft 23 and the movable frame 24. The rotating shaft 23 is located at the top of the curtain 20, and the movable frame 24 is located at the bottom of the curtain 20. Both ends of the movable frame 24 are slidably connected to the slide rail 19. According to the type of the slide rail 19, a slider that cooperates with the slide rail 19 can be set on the movable frame 24. A counterweight 25 is provided on the movable frame 24 for pulling the curtain 20 downward. The slide rail 19 is a linear slide rail 19 or an arc slide rail 19 set obliquely. When the controller 3 receives a signal that the light intensity deviates from the set light value, the servo motor 21 is started, and the servo motor 21 drives the rotating shaft 23 to rotate. The curtain 20 opens downward or retracts upward due to the rotation of the rotating shaft 23 until the light data received by the controller 3 meets the set light value. The servo motor 21 is stopped, and the movable frame 24 has a counterweight 25, which can pull down the curtain 20 while driving the curtain 20 to open or close along the slide rail 19.

[0038] like Figure 5-6 As shown, the sealing glass is light-transmitting glass or opaque glass, and a fan blade device is provided on the photovoltaic frame 12, and the fan blade device includes an electric control push rod 26, a connecting rod 27, and a rotating fan blade 28. The rotating fan blade 28 is an opaque fan blade, and the electric control push rod 26 is electrically connected to the controller 3. The fixed end of the electric control push rod 26 is rotatably connected to the photovoltaic frame 12, and the push rod end of the electric control push rod 26 is connected to the connecting rod 27. The rotating side of the rotating fan blade 28 is provided with a connecting head 29 that is perpendicular to the connecting rod 27 and rotatably connected, and a rotating head 30 that is rotatably connected to the photovoltaic frame 12. Moving the connecting head 29 can enable the rotating fan blade 28 to rotate with the rotating head 30 as the center. When the controller 3 receives a signal that the light intensity deviates from the set light threshold, the electric control push rod 26 is started, and the electric control push rod 26 pushes the connecting head 29 to move. The connecting head 29 drives the rotating fan blades 28 to rotate with the rotating head 30 as the center, thereby opening or closing the rotating fan blades 28 to adjust the transmittance of the photovoltaic panel 2. The light data received by the controller 3 meets the set light value, and the electric control push rod 26 is stopped.

[0039] like Figure 7 As shown, the cells on the photovoltaic panel 2 are arranged in rows or columns, so that the cells and the light-transmitting areas can be staggered, and one rotating blade 28 can block a light-transmitting area. It is only necessary to set the rotating blade 28 in the light-transmitting area for blocking, and there is no need to set the rotating blade 28 in the battery area. That is, the rotating blade 28 corresponds one-to-one to the opaque area on the photovoltaic panel 12, which can reduce the number of rotating blades 28.

[0040] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A gradient light transmission photovoltaic system, characterized in that: It includes a door-shaped frame, the door-shaped frame includes opaque walls on both sides, a photovoltaic frame is provided on the top of the opaque wall, photovoltaic panels are laid on the photovoltaic frame, the photovoltaic panels are connected to a controller, and the controller is connected to an energy storage device; The photovoltaic panel is provided with photovoltaic cells and light-transmitting areas, the light-transmitting area accounts for the total area of ​​the photovoltaic panel as the light transmittance, the light transmittance changes at least twice from one opening to another opening of the door-shaped frame, and the minimum light transmittance of the photovoltaic panel is equal to or lower than 10%; An object sensing device is provided on the inner side wall of the bottom of the light-proof wall, the object sensing device is connected to a controller, and the controller is connected to a lighting device; A connection frame with an excessive bend is provided at the connection between the light-proof wall and the photovoltaic frame, and an electric curtain is provided on the connection frame. The electric curtain includes a light-proof curtain, a movable frame, a slide rail, and a driving device. The driving device is fixed on the door-shaped frame. The two ends of the curtain are respectively connected to the movable frame and the driving device. Both ends of the movable frame are slidably connected to the slide rail, and the driving device drives the movable frame to slide along the slide rail. The photovoltaic frame is provided with a fan blade device, which includes an electric control push rod, a connecting rod, and a rotating fan blade. The rotating fan blade is an opaque fan blade. The electric control push rod is electrically connected to a controller. The fixed end of the electric control push rod is rotatably connected to the photovoltaic frame. The push rod end of the electric control push rod is connected to the connecting rod. The rotating side of the rotating fan blade is provided with a connecting head that is perpendicular to the connecting rod and rotatably connected, and a rotating head that is rotatably connected to the photovoltaic frame. Moving the connecting head can enable the rotating fan blade to rotate with the rotating head as the center.

2. A gradient light transmission photovoltaic system according to claim 1, characterized in that: The light transmittance of the photovoltaic panel is at least one of 100%, 80%, 60%, 40%, 20%, 10%, and 5%.

3. The gradient light transmission photovoltaic system according to claim 1, characterized in that: The photovoltaic frame is connected to the edge of the photovoltaic panel, and the photovoltaic frame and the photovoltaic panel are connected by double-sided adhesive. A pressure strip is arranged at the gap between adjacent photovoltaic panels, and the pressure strip is fixedly connected to the photovoltaic frame by weather-resistant adhesive and self-tapping screws.

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