A light-chasing solar panel and an adaptive light-chasing method

Abstract

The present invention relates to the field of solar energy equipment, and in particular to a light-chasing solar panel and an adaptive light-chasing method, comprising a flexible photovoltaic panel and a soft base layer distributed up and down, wherein the four top corners between the flexible photovoltaic panel and the soft base layer are connected by airbags, and the exhaust end of the air pump is connected to the airbags through four air guide tubes, each of which is equipped with a first solenoid valve, and the air guide tube has a branch end for installing a second solenoid valve. The present invention adopts four groups of airbags to connect the four top corners of the flexible photovoltaic panel and the soft base layer, so that the flexible photovoltaic panel maintains a flat shape relative to the soft base layer, and the light intensity is sensed and fed back by the photoresistor modules in the four directions of the flexible photovoltaic panel, so that the controller controls the second solenoid valve and the first solenoid valve to work in coordination, so as to control the volume expansion of each airbag, so that the flexible photovoltaic panel is tilted accordingly, and the purpose of light-chasing photovoltaic power generation is achieved based on the lightweight and soft characteristics of the flexible circuit board.

Description

Technical Field

[0001] The present invention relates to the field of solar energy equipment, and in particular to a light-chasing solar panel and an adaptive light-chasing method. Background Art

[0002] Solar panel tracking technology is a technology that keeps the solar panel tracking light and makes the light shine vertically on the solar panel to maintain maximum power generation efficiency. It usually uses two sets of photoresistors to sense the light intensity, and adjusts the angle of the solar panel through circuit control to make the two sets of photoresistors sense the same light intensity. At this time, the solar panel reaches the best light angle.

[0003] Existing solar panel tracking technology is developed and applied based on rigid solar panels. The main reason is that rigid solar panels have a fixed shape, which makes it easy to adjust the overall angle, while flexible solar panels have an irregular shape. The development of tracking technology based on flexible solar panels is still immature. Compared with rigid solar panels, flexible solar panels have excellent characteristics such as light weight and shape adjustment. They are widely used on the surface of equipment such as automobiles and sailboats. There is still a necessary demand for flexible solar panels to adjust the light. Summary of the invention

[0004] The purpose of the present invention is to solve the following problems existing in the prior art: flexible solar panels have excellent characteristics such as light weight and shape adjustment compared to hard solar panels, and are widely used on the surfaces of equipment such as automobiles and sailboats. There is still a necessary demand for lighting adjustment of flexible solar panels, but the shape of flexible solar panels is not fixed, and the development of light-chasing technology based on flexible solar panels is still immature.

[0005] In order to solve the problems existing in the prior art, the present invention provides a light-chasing solar panel, including a flexible photovoltaic panel and a soft base layer distributed up and down, the four top corners between the flexible photovoltaic panel and the soft base layer are connected by an air bag body, the exhaust end of the air pump is connected to the air bag body through four air ducts, each of the air ducts is equipped with a first solenoid valve, the air duct has a branch end for installing a second solenoid valve, and the four edges of the flexible photovoltaic panel are equipped with photoresistor modules, and the air pump, the photoresistor module, the first solenoid valve, and the second solenoid valve are electrically connected to a controller.

[0006] Preferably, the airbag body comprises a flexible tube, both ends of which are respectively connected to a flexible photovoltaic panel and a soft base layer, so that a closed space is formed inside the flexible tube, and a spring is arranged inside the flexible tube for elastically connecting the flexible photovoltaic panel and the soft base layer.

[0007] Preferably, a micro switch is provided in the flexible tube, a touch end of the micro switch is connected to a pull rope, the micro switch and the pull rope are fixedly connected to the flexible photovoltaic panel and the soft base layer respectively, and the micro switch is electrically connected to the controller.

[0008] Preferably, an elastic fabric layer is connected to the edge between the flexible photovoltaic panel and the soft base layer to block the gap between the flexible photovoltaic panel and the soft base layer, and a zipper is provided on the surface of the elastic fabric layer.

[0009] Preferably, a flexible air tube is bonded to the edge of the top surface of the flexible photovoltaic panel, and air holes are evenly opened on the surface of the flexible air tube. The air outlet of the air pump is connected to the flexible air tube through an air supply pipe, and a third solenoid valve is installed on the air supply pipe, and the third solenoid valve is electrically connected to the controller.

[0010] Preferably, a plurality of elastic bands are arranged around the edge of the flexible photovoltaic panel, and the elastic bands are fixedly connected to the outer side of the flexible air tube.

[0011] An adaptive light-chasing method based on the light-chasing solar panel, the specific steps are as follows:

[0012] A. Fix the soft base layer on the installation surface, and the flexible photovoltaic panel and the soft base layer flexibly fit the installation surface. Under normal conditions, the airbag body is completely contracted to minimize the distance between the flexible photovoltaic panel and the soft base layer, and photovoltaic power generation is performed through the flexible photovoltaic panel;

[0013] B. Turn on the light-chasing mode. The four photoresistor modules sense the light intensity around the flexible photovoltaic panel and feed back the light signal to the controller.

[0014] C. When adjusting the angle by following the light, the controller controls the air pump to work, controls the corresponding first solenoid valve to open to inflate the airbag, and controls the corresponding second solenoid valve to open to deflate the airbag, so that the four airbags undergo corresponding volume changes, and the surface of the flexible photovoltaic panel tilts until the light intensity sensed by the four groups of photoresistor modules is consistent. The adjustment is stopped, and the flexible photovoltaic panel maintains its shape to perform photovoltaic power generation.

[0015] Compared with the related art, the light-chasing solar panel and the adaptive light-chasing method provided by the present invention have the following beneficial effects:

[0016] 1. The present invention uses four groups of airbags to connect the four vertex corners of the flexible photovoltaic panel and the soft base layer, so that the flexible photovoltaic panel maintains a flat shape relative to the soft base layer. The photoresistor modules in four directions of the flexible photovoltaic panel sense and feedback the light intensity, so that the controller controls the second solenoid valve and the first solenoid valve to work in coordination, which is used to control the volume expansion of each airbag, so that the flexible photovoltaic panel tilts accordingly. Based on the lightweight and soft characteristics of the flexible circuit board, the purpose of chasing light photovoltaic power generation is achieved;

[0017] 2. The present invention forms a stable surrounding shape by ventilating and expanding the flexible air tube surrounding the edge of the flexible photovoltaic panel, and sprays air to the flexible photovoltaic panel and the photoresistor module through the air holes for dust removal, thereby avoiding the problem of reduced power generation efficiency and reduced light sensitivity due to dust adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the connection distribution structure between the flexible photovoltaic panel and the soft base layer of the present invention;

[0020] Figure 3 It is a schematic diagram of the airbag distribution structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the airbag structure of the present invention;

[0022] Figure 5 This is one of the schematic diagrams of the inclined structure of the flexible photovoltaic panel of the present invention;

[0023] Figure 6 This is the second schematic diagram of the inclined structure of the flexible photovoltaic panel of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the gas supply control component of the present invention;

[0025] Figure 8 It is a schematic diagram of the dust removal form of the flexible air duct of the present invention;

[0026] Fig. 9 It is a schematic diagram of the structure of the flexible trachea expansion form of the present invention;

[0027] Fig.10 It is a schematic diagram of the storage structure of the flexible air tube of the present invention.

[0028] Numbers in the figure: 1. Flexible photovoltaic panel; 2. Soft base layer; 21. Through hole; 3. Elastic fabric layer; 4. Flexible air tube; 41. Air hole; 42. Elastic band; 5. Photoresistor module; 6. Air pump; 61. Controller; 62. Air guide tube; 63. Second solenoid valve; 64. Air supply pipe; 65. Third solenoid valve; 66. First solenoid valve; 7. Airbag body; 71. Flexible tube; 72. Adhesive layer; 73. Micro switch; 74. Pull rope. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0031] Embodiment 1

[0032] like Figure 1-4As shown, a light-chasing solar panel includes a flexible photovoltaic panel 1 and a soft base layer 2 which are arranged vertically. The soft base layer 2 is made of a soft composite waterproof cloth cut and cut, and its shape and size are the same as those of the flexible photovoltaic panel 1. A through hole 21 is provided at the top corner of the soft base layer 2, and a metal ring is embedded at the edge of the through hole 21.

[0033] Four airbag bodies 7 are arranged at the top corners between the flexible photovoltaic panel 1 and the soft base layer 2. The airbag body 7 includes a flexible tube 71. The flexible tube 71 is woven into a cylindrical shape with nylon material, and chloroprene rubber is coated on its surface to form a soft sealing body. The top of the flexible tube 71 is fixedly sealed and connected to the flexible photovoltaic panel 1, and the bottom is fixedly sealed and connected to the soft base layer 2, so that a closed space is formed inside the flexible tube 71. A spring is placed in the flexible tube 71, and the spring is connected to the flexible photovoltaic panel 1 and the soft base layer 2 from top to bottom.

[0034] When the device is installed, the soft base layer 2 is attached to the installation part and closely fits the shape of the installation part. The soft base layer 2 is fixed to the installation part by a connecting piece penetrating the through hole 21. Under normal conditions, the flexible tube 71 is compressed by the elastic force of the spring, and the gap between the flexible photovoltaic panel 1 and the soft base layer 2 reaches the minimum storage state;

[0035] Install photoresistor modules 5 at the center positions of four edges of the upper surface of the flexible photovoltaic panel 1;

[0036] The structure of the air supply control components is as follows:

[0037] like Figure 7 As shown, the air pump 6 is externally arranged, and the air pump 6 has five air outlets, four of which are respectively connected to four air guide tubes 62, and a first solenoid valve 66 is installed at a position of the air guide tube 62 close to the air pump 6. The other side of the air guide tube 62 has a branch end, and the branch end penetrates the external environment, and a second solenoid valve 63 is installed at the branch end. The four groups of air guide tubes 62 are respectively connected to four flexible tubes 71 through hoses, and a controller 61 is integrated and installed on the surface of the air pump 6, and the air pump 6, the photoresistor module 5, the first solenoid valve 66, and the second solenoid valve 63 are all electrically connected to the controller;

[0038] When the light chasing mode is turned on, the four photoresistor modules 5 respectively sense the light intensity at the edge of the flexible photovoltaic panel 1 and feed back to the controller 61 in the form of electrical signals. The calculation circuit of the controller 61 performs regulation and adjustment. The regulation logic is as follows:

[0039] like Figure 1-7 As shown, the four photoresistor modules 5 respectively reflect the illumination information in four directions of the flexible photovoltaic panel 1, and the air pump 6 is turned on to supply air when there is an illumination difference;

[0040] During adjustment, two groups of adjustment logic are distributed, front and rear, left and right. First, the electrical signal fed back by the photoresistor module 5 at the front and rear positions is adjusted. The two airbags 7 at the front side are one group, and the two airbags 7 at the rear side are one group.

[0041] If the light on the front side is stronger than the light on the back side, the flexible photovoltaic panel 1 needs to be tilted toward the front side, the first solenoid valve 66 corresponding to the two airbags 7 on the back side is opened, and the air pump 6 supplies air to the two flexible cylinders 71 on the back side, so that the flexible cylinders 71 expand, and the back side of the flexible photovoltaic panel 1 overcomes the elastic force and is lifted up, so that the flexible photovoltaic panel 1 tilts forward until the signal strengths fed back by the photoresistor modules 5 at the front and back positions are close, and the front and back tilt adjustment is stopped;

[0042] Then, the left and right tilt adjustment is performed, the two airbags 7 on the left are a group, and the two airbags 7 on the right are a group. If the light intensity sensed by the photoresistor module 5 on the left is greater than that on the right, the flexible photovoltaic panel 1 needs to be tilted to the left, and the air pump 6 supplies air to the two flexible cylinders 71 on the right to expand the flexible cylinders 71, so that the right side of the flexible photovoltaic panel 1 overcomes the elastic force and is lifted up, so that the flexible photovoltaic panel 1 tilts to the left, until the signal strengths fed back by the photoresistor modules 5 on the left and right positions are close, and the front and rear tilt adjustment is stopped;

[0043] After the left and right tilt adjustment, the front and back tilt adjustment needs to be compensated, and the front and back tilt adjustment is performed again, and the left and right tilt adjustment is performed again until the signal strength fed back by the four photoresistor modules 5 is within a certain range;

[0044] When the volume of the corresponding airbag 7 needs to be reduced during the adjustment process, the first electromagnetic valve 66 of the circuit is closed, and the second electromagnetic valve 63 of the circuit is opened to release the gas in the corresponding flexible tube 71.

[0045] like Figure 4 As shown, a micro switch 73 is arranged in the flexible tube 71, the micro switch 73 is adhered to the surface of the soft base layer 2 through the adhesive layer 72, the pull rope 74 is adhered to the surface of the flexible photovoltaic panel 1 through the adhesive layer 72, the pull rope 74 is connected to the touch end of the micro switch 73, and the micro switch 73 is electrically connected to the controller 61;

[0046] When the flexible tube 71 is ventilated and expanded, the pull rope 74 is gradually stretched. When the flexible tube 71 expands to its maximum volume, the pull rope 74 tightens the touch micro switch 73, causing the controller 61 to stop supplying air to that position, thereby playing an adjustment and protection role, so that the tracking angle of the flexible photovoltaic panel 1 can be reasonably controlled within a certain range.

[0047] like Figure 2 As shown, an elastic fabric layer 3 is connected at the edge between the flexible photovoltaic panel 1 and the soft base layer 2, and a zipper is arranged on the surface of the elastic fabric layer 3. The zipper can be opened to carry out installation, adjustment, maintenance and the like between the flexible photovoltaic panel 1 and the soft base layer 2. The zipper is closed so that the elastic fabric layer 3 blocks the gap between the flexible photovoltaic panel 1 and the soft base layer 2, thereby achieving dustproof and waterproof protection. The elastic fabric layer 3 has a slight elastic force, which also serves to straighten the edge of the flexible photovoltaic panel 1.

[0048] Embodiment 2

[0049] like Figure 8-10 As shown, a flexible air tube 4 is bonded to the edge of the top surface of the flexible photovoltaic panel 1, and the flexible air tube 4 surrounds the flexible photovoltaic panel 1. The flexible air tube 4 is made of a nylon composite material, so that the flexible air tube 4 forms a non-elastic soft capsule. The cross-section of the flexible air tube 4 in the expanded state is elliptical, and a plurality of air holes 41 pointing to the flexible photovoltaic panel 1 are evenly arranged on the inner side of the flexible air tube 4. An air outlet of the air pump 6 is connected to an air supply pipe 64, and the air supply pipe 64 is installed with a third electromagnetic valve 65, and the third electromagnetic valve 65 is electrically connected to the controller 61;

[0050] The controller 61 is set to remove dust from the surface of the flexible photovoltaic panel 1 and the photoresistor module 5 at regular intervals, close all the first solenoid valves 66, open the third solenoid valve 65, and introduce air into the flexible air pipe 4 through the air supply pipe 64, so that the flexible air pipe 4 expands to keep a fixed shape, and sprays air to the surface of the flexible photovoltaic panel 1 and the photoresistor module 5 through the air hole 41 to remove the dust on the surface;

[0051] A plurality of elastic bands 42 are arranged around the edge of the flexible photovoltaic panel 1, and the elastic bands 42 are fixedly connected to the outer part of the flexible air tube 4. In the non-dust removal state, the flexible air tube 4 is in a contracted state, and the contracted flexible air tube 4 is pulled toward the outside of the flexible photovoltaic panel 1 through the elastic bands 42 to prevent the flexible air tube 4 from blocking the flexible photovoltaic panel 1 and the photoresistor module 5 from receiving light and affecting the work.

[0052] Embodiment 3

[0053] An adaptive light-chasing method based on the light-chasing solar panel, the specific steps are as follows:

[0054] A. The soft base layer 2 is fixed to the mounting surface, and the flexible photovoltaic panel 1 and the soft base layer 2 are flexibly attached to the mounting surface. Under normal conditions, the airbag body 7 is completely contracted to minimize the distance between the flexible photovoltaic panel 1 and the soft base layer 2, and photovoltaic power generation is performed through the flexible photovoltaic panel 1;

[0055] B. Turn on the light-chasing mode, the four photoresistor modules 5 sense the light intensity around the flexible photovoltaic panel 1 and feed back the light signal to the controller 61;

[0056] C. When adjusting the angle by chasing the light, the controller 61 controls the air pump 6 to work, controls the corresponding first solenoid valve 66 to open to inflate the airbag 7, and controls the corresponding second solenoid valve 63 to open to deflate the airbag 7, so that the four airbags 7 undergo corresponding volume changes, and the surface of the flexible photovoltaic panel 1 tilts until the light intensity sensed by the four groups of photoresistor modules 5 is consistent, and then stops adjusting, and the flexible photovoltaic panel 1 maintains its shape to perform photovoltaic power generation.

Claims

1. A light-chasing solar panel, comprising a flexible photovoltaic panel (1) and a soft base layer (2), wherein the flexible photovoltaic panel (1) and the soft base layer (2) are arranged vertically, and characterized in that: The four vertices between the flexible photovoltaic panel (1) and the soft base layer (2) are connected via an air bag body (7); the exhaust end of the air pump (6) is connected to the air bag body (7) via four air guide tubes (62); each of the air guide tubes (62) is installed with a first electromagnetic valve (66); the air guide tube (62) has a branch end for installing a second electromagnetic valve (63); the four edges of the flexible photovoltaic panel (1) are installed with a photoresistor module (5); the air pump (6), the photoresistor module (5), the first electromagnetic valve (66), and the second electromagnetic valve (63) are all electrically connected to the controller (61); The airbag body (7) comprises a flexible tube (71), the two ends of the flexible tube (71) being respectively connected to the flexible photovoltaic panel (1) and the soft base layer (2), so that a closed space is formed inside the flexible tube (71), and a spring is arranged inside the flexible tube (71) for elastically connecting the flexible photovoltaic panel (1) and the soft base layer (2); A micro switch (73) is arranged in the flexible tube (71); a touch end of the micro switch (73) is connected to a pull rope (74); the micro switch (73) and the pull rope (74) are respectively fixedly connected to the flexible photovoltaic panel (1) and the soft base layer (2); and the micro switch (73) is electrically connected to the controller (61); An elastic fabric layer (3) is connected to the edge between the flexible photovoltaic panel (1) and the soft base layer (2) to seal the gap between the flexible photovoltaic panel (1) and the soft base layer (2); a zipper is provided on the surface of the elastic fabric layer (3); A flexible air tube (4) is bonded to the edge of the top surface of the flexible photovoltaic panel (1), air holes (41) are evenly formed on the surface of the flexible air tube (4), an air outlet of the air pump (6) is connected to the flexible air tube (4) via an air supply pipe (64), a third solenoid valve (65) is installed on the air supply pipe (64), and the third solenoid valve (65) is electrically connected to the controller (61); The light-chasing methods of solar panels include: A. The soft base layer (2) is fixed to the mounting surface, the soft base layer (2) is flexibly attached to the mounting surface, and under normal conditions, the airbag body (7) is completely contracted to minimize the distance between the flexible photovoltaic panel (1) and the soft base layer (2), and photovoltaic power generation is performed through the flexible photovoltaic panel (1); B. Turning on the light-chasing mode, the four photoresistor modules (5) sense the light intensity around the flexible photovoltaic panel (1) and feed back the light signal to the controller (61); C. When adjusting the angle by following the light, the controller (61) controls the air pump (6) to work, controls the corresponding first solenoid valve (66) to open to inflate the airbag (7), and controls the corresponding second solenoid valve (63) to open to deflate the airbag (7), so that the four airbags (7) undergo corresponding volume changes, and the surface of the flexible photovoltaic panel (1) tilts until the light intensity sensed by the four groups of photoresistor modules (5) is consistent, and then stops adjusting, and the flexible photovoltaic panel (1) maintains its shape to perform photovoltaic power generation.

2. The light-chasing solar panel according to claim 1, characterized in that: A plurality of elastic bands (42) are arranged around the edge of the flexible photovoltaic panel (1), and the elastic bands (42) are fixedly connected to the outer side of the flexible air tube (4).

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