Support capable of adjusting inclination angle of photovoltaic panel

Abstract

The utility model provides a bracket capable of adjusting the inclination angle of a photovoltaic panel. The bracket comprises a base, a connecting rod, a connecting shaft and a driving cylinder, wherein crossed connecting rods are arranged on the two sides of the base, and the first panel is fixed between the two connecting rods at the same end of the base. Two stand columns are fixed on the base, and sliding rails are fixed on two sides of the base. A first panel is fixed between the two connecting rods at the same end of the base, and in the same side of the base, the two connecting rods are in pivot joint with the two sliding blocks located on the sliding rail respectively. The connecting shaft is limited between the two stand columns, and the two ends of the connecting shaft penetrate through the intersection points of the two crossed connecting rods on the two sides of the base respectively. In the working process, the driving cylinder drives the connecting shaft to ascend and descend to drive the first panels to swing, the first panels swing along with the rising and falling process of the sun so as to keep receiving direct sunlight, light loss can be reduced, more sunlight radiation can be received, one of the first panels can keep receiving the direct sunlight, and the service life of the first panels can be prolonged. Therefore, the conversion efficiency of solar energy can be improved.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic support structures, in particular to a support with adjustable photovoltaic panel inclination angle. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor interfaces to directly convert light energy into electrical energy. It is mainly composed of three parts: solar panels (modules), controllers and inverters, and the main components are composed of electronic components. After solar cells are connected in series and packaged for protection, they can form large-area solar cell modules, which are then combined with power controllers and other components to form photovoltaic power generation devices.

[0003] Photovoltaic panels work by converting light energy from sunlight into electrical energy. A solar cell is a semiconductor PN junction that forms an electric field between the P layer and the N layer in the solar panel. When photons hit the PN junction, electrons are accelerated by the electric field and pushed out of the PN junction, forming an electric current. Photovoltaic panels conduct this current and adjust it through devices such as inverters to convert it into AC power for home and industrial use.

[0004] Photovoltaic panels are generally considered to be very sensitive to light sources, and direct solar radiation can improve the power generation efficiency of photovoltaic panels. Generally speaking, the greater the light intensity, the higher the efficiency of power generation. Therefore, in the case of sufficient sunlight, photovoltaic cells can collect the energy of sunlight and convert it into electrical energy.

[0005] However, in the prior art, most of the brackets for placing photovoltaic panels fix the photovoltaic panels in a uniform direction. When the sun moves to a position facing away from the photovoltaic panels as it rises and sets, the photovoltaic panels cannot receive direct sunlight, and the conversion efficiency is low at this time. In other words, the current way of fixing photovoltaic panels with brackets makes the power generation efficiency of photovoltaic panels relatively low. Summary of the invention

[0006] In view of the deficiencies raised by the above background technology, the utility model provides a bracket with adjustable inclination angle of photovoltaic panels.

[0007] The utility model adopts the following technical solutions:

[0008] A bracket with adjustable inclination angle of a photovoltaic panel, wherein the bracket comprises:

[0009] A base, on which two columns are fixed, and on both sides of the two columns, slide rails are fixed, and the two slide rails are connected with matching sliders;

[0010] Connecting rods, the two sides of the base are provided with crossed connecting rods, the first panel is fixed between the two connecting rods at the same end of the base, and the two connecting rods on the same side of the base are respectively pivotally connected to the two sliders located on the slide rail;

[0011] A connecting shaft, the connecting shaft is limited between the two uprights, and the two ends of the connecting shaft respectively pass through the intersection of the two connecting rods crossing the two sides of the base, so that each connecting rod rotates relative to the connecting shaft, and the two first panels at the two ends of the base swing accordingly;

[0012] A driving cylinder is fixed to the column, a telescopic rod of the driving cylinder is lifted vertically, and a terminal end of the telescopic rod of the driving cylinder is fixedly connected to the connecting shaft.

[0013] In a possible implementation, a mounting plate is fixed on the column, and a solar tracker is fixed on the upper end of the mounting plate.

[0014] In one possible implementation, a support rod is fixed on the mounting plate, the solar tracker is fixed to the top of the support rod, and the two first panel frames are provided with a clearance opening on the side facing the column. When the two first panels are swung upward to a horizontal or nearly horizontal state, the clearance opening is stuck outside the support rod.

[0015] In a possible implementation manner, a second panel is disposed on the bottom surface of each of the two first panels, and the second panel slides relative to the first panel.

[0016] In a possible implementation, guide posts are fixed on both sides of the bottom surface of the first panel, and guide sleeves are fixed on both sides of the second panel. The two guide sleeves are respectively sleeved outside the two guide posts, so that the second panel slides relative to the guide posts.

[0017] In a possible implementation, the bottom surface of the first panel is fixed with connecting pieces at both ends of the guide column, the guide column sleeve is provided with a spring, and the two ends of the spring respectively press against the guide sleeve and the connecting piece close to the column, so that the elastic force of the stretched spring pushes the second panel away from the column.

[0018] In a possible implementation, both sides of the second panel away from the end of the column are connected to rollers, and when the first panel swings downward to drive the second panel downward to the base, the two rollers press on the base and roll.

[0019] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages: the utility model connects the first panel through the connecting rods crossing on both sides of the base, and drives the first panel to swing by driving the connecting shaft to rise and fall by the driving cylinder, so that the first panel swings with the rising and setting of the sun to keep receiving direct sunlight, which is beneficial to reducing light loss and receiving more sunlight radiation. Compared with the fixed placement of two first panels side by side, one of the first panels can keep receiving direct sunlight, which is more conducive to improving the conversion efficiency of solar energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model after the first panel is swung upward.

[0021] Figure 2 for Figure 1 A is an enlarged schematic diagram.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model after the first panel is swung downward.

[0023] Figure 4 for Figure 3 Schematic diagram of the enlarged view at B.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure when viewed from above after the second panel is connected to the bottom surface of the first panel.

[0025] Figure 6 for Figure 5 Enlarged schematic diagram at C in the middle. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0027] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0028] In addition, in the present application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0029] The utility model discloses a bracket with adjustable inclination angle of photovoltaic panels. Figure 1 and3 As shown, the bracket includes a base 1, a connecting rod 2, a connecting shaft 3 and a driving cylinder 4. Among them, cross connecting rods 2 are arranged on both sides of the base 1, and a first panel 51 is fixed between the two connecting rods at the same end of the base 1. The first panel 51 is a photovoltaic panel, so that the base 1 forms an integral structure that supports the utility model.

[0030] Continue to refer to the attached Figure 3 Two columns 13 are fixed in the middle of the base 1, and the base 1 is fixed with slide rails 11 on both sides of the positions of the two columns 13, and the two slide rails 11 are connected with sliding blocks 12 adapted to slide. On the same side of the base 1, the two connecting rods 2 are pivotally connected to the two sliding blocks 12 located on the slide rails 11 respectively. The pivot connection in this embodiment can be a connecting structure in which the two connected parts rotate around the pin shaft as the axis by wearing a pin shaft. In addition, the connecting shaft 3 is restricted between the two columns 13, so that the connecting shaft 3 cannot rotate horizontally but can only be lifted and lowered vertically. Preferably, the two sides of the middle position on the base are fixed respectively. The two ends of the connecting shaft 3 also pass through the intersection 21 of the two connecting rods 2 crossing on both sides of the base 1, so that each connecting rod 2 rotates relative to the connecting shaft 3, thereby driving the two first panels 51 at both ends of the base 1 to swing accordingly.

[0031] Please refer to the attached Figure 3 , the drive cylinder 4 is fixed to the side of the column 13, the drive cylinder 4 can be an electric push rod, and the telescopic rod of the drive cylinder 4 is vertically lifted and lowered, and the end of the telescopic rod of the drive cylinder 4 is also fixedly connected to the connecting shaft 3. Through this structure, the drive cylinder 4 drives the connecting shaft 3 to be vertically lifted and lowered relative to the base 1 through the vertical telescopic movement of the telescopic rod, thereby driving the connecting rods 2 crossing on both sides of the base 1 to swing. Specifically, when the connecting shaft 3 swings downward, as shown in the attached Figure 1 As shown in FIG. 1 , the bottoms of the two crossed connecting rods 2 are driven to move toward the two ends of the base 1, thereby driving the first panels 51 at both ends of the base 1 to swing downward. When the connecting shaft 3 swings upward, as shown in FIG. Figure 3 As shown, the bottoms of the two crossed connecting rods 2 are driven to move toward the middle of the base 1 at the same time, thereby driving the first panels 51 at both ends of the base 1 to swing upward.

[0032] The above swinging method can swing with the rising and setting of the sun, which is conducive to receiving more sunlight radiation. For example, the two first panels 51 are placed in the east and west directions respectively. When the sun rises, the connecting shaft 3 rises upward to drive the two first panels 51 to swing upward with it, until the noon stage, the two first panels 51 are vertically facing upward at the same time. After that, when the sun sets, the connecting shaft 3 drops to drive the two first panels 51 to swing downward with it, so that one of the first panels 51 swings downward with the sun. Compared with the placement of two first panels 51 fixed side by side, during the upward and downward swinging of the above first panels 51, one of the first panels 51 can keep receiving direct sunlight, so it is more conducive to improving the conversion efficiency of solar energy.

[0033] Furthermore, a mounting plate 14 is fixed on the column 13, and a sunlight tracker 6 is fixed on the upper end of the mounting plate 14. Preferably, the sunlight tracker 6 in the utility model can use two photosensors and two comparators to respectively form two light-controlled comparators to control the lifting and lowering of the telescopic rod of the drive cylinder 5. One of the two photoresistors is an upper bias resistor of the comparator, and the other is a lower bias resistor. One detects sunlight, and the other detects the ambient light signal and sends it to the single-chip microcomputer. The comparison level at the input end of the comparator is the difference between the two lights, which is used to track the sun. When the external power supply is turned on, the sun can be tracked in real time through the sunlight tracker to realize the control of the angle of the first panel 51 relative to the base 1, so that the first panel 51 can receive direct sunlight as much as possible.

[0034] As attached Figure 2 As shown, the support rod 15 is fixed on the mounting plate 14, the sunlight tracker 6 is fixed to the top of the support rod 15, and the two first panels 51 are provided with a clearance opening 501 on the side facing the column 13. When the two first panels 51 are swung upward to a horizontal or nearly horizontal state, the clearance opening 501 is stuck outside the support rod 15. It can be seen that this structure can form a clearance for the first panels 51, so that the two first panels 51 may face upward horizontally at noon, thereby receiving more sunlight radiation.

[0035] In addition, in order to expand the area of ​​the first panel 51 receiving sunlight at noon, the first panel 51 that is longer between the two ends of the base 1 will cause the first panel 51 to be unable to swing to a vertical or nearly vertical state when swinging downward, and also unable to swing to a state where the sunlight remains nearly direct as the sun rises and sets. Based on this problem, the bottom surfaces of the two first panels 51 are both provided with a second panel 52 that is also a photovoltaic panel, and the second panel 52 slides relative to the first panel 51. Its sliding structure may be that guide posts 53 are fixed on both sides of the bottom surface of the first panel 51, and guide sleeves 54 are fixed on both sides of the second panel 52. The two guide sleeves 54 are respectively sleeved on the outside of the two guide posts 53, thereby limiting the second panel 52 to only slide relative to the first panel 51 along the guide posts 53. Further, as shown in the attached Figure 6 As shown, the bottom surface of the first panel 51 is fixed with connecting pieces 57 at both ends of the guide column 53, and the guide column 53 is fixed to the back of the first panel 51 through the connection of the connecting pieces 57. The outer sleeve of the guide column 53 is provided with a spring 55, and the two ends of the spring 55 are respectively pressed against the guide sleeve 54 and the connecting piece 57 close to the column 13, so that the elastic force of the stretched spring 55 pushes the second panel 52 away from the column 13, that is, the spring 55 forms a thrust to push the second panel 52 outward from the first panel 51.

[0036] In the above structure of the second panel 52, when the connecting shaft 3 swings downward and drives the first panel 51 to swing downward, when the lower end of the second panel 52 abuts against the base 1, the downward pressure formed by the downward swing of the first panel 51 can gradually press the second panel 52 into the back of the first panel 51, so that the first panel 51 can swing with the rising and setting of the sun to keep the sunlight close to direct. Preferably, as shown in the attached Figure 4 and 5 As shown, both sides of the second panel 52 away from the column 13 are connected to rollers 57, and when the first panel 51 swings downward to drive the second panel 52 to press downward toward the base 1, the two rollers 55 press on the base 1 and roll. In this structure, the rollers 55 can reduce the friction of the second panel 52 moving on the base 1, making it more smooth to extend and retract relative to the first panel 51.

[0037] Referring to the accompanying drawings again, when the connecting shaft 3 swings upward and drives the first panel 51 to swing upward, the second panel 52 gradually extends outward, so that during the period of strong sunlight, the second panel 52 can serve as a supplement to further increase the efficiency of electric energy conversion, and will not affect the first panel 51 from swinging as the sun rises and sets to keep the sunlight close to direct.

[0038] In addition, it is worth mentioning that the sunlight in the morning and evening is weak, that is, the light intensity is low, so the efficiency of converting electrical energy is also low. Therefore, at this time, the second panel 52 is retracted behind the back of the first panel 51, and the loss of converted electrical energy is small and can be ignored.

[0039] In summary, in the structure of the present invention, the first panel 51 is connected by the connecting rods 2 crossing on both sides of the base 1, and the first panel 51 is driven to swing by the lifting and lowering of the connecting shaft 3, so that the first panel 51 can swing with the rising and setting of the sun, which is conducive to receiving more sunlight radiation. At the same time, the second panel 52 is used as a supplement to further expand the efficiency of the utility model in the period of strong sunlight conversion, and does not affect the first panel 51 to swing with the rising and setting of the sun to keep the sunlight close to direct. It can be seen that the structure of the present invention is conducive to the photovoltaic panel to absorb more sunlight to improve the efficiency of electricity conversion.

[0040] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A bracket with adjustable inclination angle of photovoltaic panels, wherein: The bracket includes: A base, on which two columns are fixed, and on both sides of the two columns, slide rails are fixed, and the two slide rails are connected with matching sliders; Connecting rods, the two sides of the base are provided with crossed connecting rods, the first panel is fixed between the two connecting rods at the same end of the base, and the two connecting rods on the same side of the base are respectively pivotally connected to the two sliders located on the slide rail; A connecting shaft, the connecting shaft is limited between the two uprights, and the two ends of the connecting shaft respectively pass through the intersection of the two connecting rods crossing the two sides of the base, so that each connecting rod rotates relative to the connecting shaft, and the two first panels at the two ends of the base swing accordingly; A driving cylinder is fixed to the column, a telescopic rod of the driving cylinder is lifted vertically, and a terminal end of the telescopic rod of the driving cylinder is fixedly connected to the connecting shaft.

2. A bracket for adjusting the inclination angle of a photovoltaic panel as claimed in claim 1, wherein: A mounting plate is fixed on the column, and a sunlight tracker is fixed on the upper end of the mounting plate.

3. A photovoltaic panel tilt-adjustable bracket as claimed in claim 2, wherein: A support rod is fixed on the mounting plate, the solar tracker is fixed to the top of the support rod, and the two first panel frames are provided with a clearance opening on the side facing the column. When the two first panels are swung upward to horizontal or nearly horizontal, the clearance opening is stuck outside the support rod.

4. A photovoltaic panel tilt-adjustable bracket as claimed in claim 1, wherein: A second panel is disposed on the bottom surfaces of the two first panels, and the second panel slides relative to the first panel.

5. A photovoltaic panel tilt-adjustable bracket as claimed in claim 4, wherein: Guide posts are fixed on both sides of the bottom surface of the first panel, and guide sleeves are fixed on both sides of the second panel. The two guide sleeves are respectively sleeved outside the two guide posts, so that the second panel slides relative to the guide posts.

6. A photovoltaic panel tilt-adjustable bracket as claimed in claim 5, wherein: The bottom surface of the first panel is fixed with connecting pieces at both ends of the guide column, and the guide column outer sleeve is provided with a spring, and the two ends of the spring respectively press against the guide sleeve and the connecting piece close to the column, so that the elastic force of the stretched spring pushes the second panel away from the column.

7. A bracket for adjusting the inclination angle of a photovoltaic panel according to any one of claims 4 to 6, wherein: Both sides of the second panel away from one end of the column are connected to rollers. When the first panel swings downward to drive the second panel to press downward toward the base, the two rollers press on the base and roll.

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