Photovoltaic panel for photovoltaic energy storage

Abstract

The utility model belongs to the technical field of photovoltaic power generation, and particularly relates to a photovoltaic panel for photovoltaic energy storage, which comprises a mounting frame, a photovoltaic panel is mounted on the mounting frame, a winding drum is arranged above the photovoltaic panel, and protective cloth for covering the surface of the photovoltaic panel is wound in the winding drum. A tensioning mechanism is arranged at the inclined lower part of the photovoltaic panel; the protection cloth is used for covering the surface of the photovoltaic panel, the situation that in windy and sandy weather, blown wind and sand rub the surface of the photovoltaic panel, so that the surface of the photovoltaic panel is hairy, the light transmittance is reduced, and the photovoltaic conversion efficiency is affected can be prevented, in good weather, the protection cloth can be wound into the winding drum, covering of the photovoltaic panel is relieved, and the photovoltaic panel is protected. The photovoltaic panel can work normally, so that the photovoltaic panel is protected, the service life of the photovoltaic panel is prolonged, in addition, by means of the tensioning mechanism, the protective cloth can be tensioned after being unfolded downwards, and the two ends of the protective cloth are tensioned more powerfully.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic panel for photovoltaic energy storage. Background Art

[0002] Photovoltaic is the abbreviation of solar photovoltaic power generation system, which is a power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. Due to the differences in terrain between the north and the south, the environmental pressures that photovoltaic panels are subjected to after installation are different. For example, in the northwest region, there are more common wind and sand, which will cause greater damage to photovoltaic panels.

[0003] For photovoltaic power generation systems in the Northwest region, photovoltaic panels are usually fixed directly on the brackets. Due to the strong wind and sand in the Northwest region, when the wind and sand are more severe or when encountering sandstorms, the wind and sand will rub the surface of the photovoltaic panels for a long time, which will cause the photovoltaic panels to absorb less light and affect the power generation efficiency. Once the surface of the photovoltaic panel is severely worn, it will not be able to meet the power generation needs and needs to be replaced, which will increase the cost of photovoltaic power generation. Utility Model Content

[0004] In order to make up for the shortcomings of the existing technology, the existing protection ability of photovoltaic panels is insufficient, especially in areas with severe wind and sand, which can easily aggravate the wear of photovoltaic panels and affect the photoelectric conversion efficiency. The utility model proposes a photovoltaic panel for photovoltaic energy storage.

[0005] The technical solution adopted by the present invention to solve its technical problems is: the photovoltaic panel for photovoltaic energy storage described in the present invention includes a mounting frame, a photovoltaic panel is installed on the mounting frame, a winding drum is provided obliquely above the photovoltaic panel, and a protective cloth for covering the surface of the photovoltaic panel is rolled up in the winding drum; a tensioning mechanism is provided obliquely below the photovoltaic panel; using the protective cloth to cover the surface of the photovoltaic panel can prevent the blown sand from rubbing against the surface of the photovoltaic panel in windy and sandy weather, causing the surface of the panel to become hairy, resulting in a decrease in light transmittance and affecting the photovoltaic conversion efficiency.

[0006] Preferably, a reel is rotatably provided inside the reel drum, one end of the reel is connected to a servo motor, and one end of the protective cloth is connected to the reel.

[0007] Preferably, the other end of the protective cloth is connected to a counterweight bar, and rollers are respectively provided at both ends of the counterweight bar. Each roller is respectively rolled in a track, and the two tracks are respectively provided on both sides of the photovoltaic panel.

[0008] Preferably, a groove is provided in the middle section of the lower end surface of the counterweight bar.

[0009] Preferably, the tensioning mechanism includes a hook plate, a snap-fit ​​structure is formed between the hook plate and the groove, the hook plate is hinged to the mounting plate, and a spring is further provided between the hook plate and the mounting plate.

[0010] Preferably, an electromagnet is installed on the mounting plate at a position corresponding to the spring, and the electromagnet is magnetically connected to the hook plate. A telescopic rod is also connected to the mounting plate, and the telescopic rod is fixedly connected to the lower end of the track.

[0011] The utility model is beneficial in that:

[0012] 1. The utility model provides a protective cloth that can be extended from the reel to cover the surface of the photovoltaic panel in windy and sandy weather, thereby preventing the wind and sand from rubbing against the surface of the photovoltaic panel and causing wear and tear, which affects the photoelectric conversion efficiency. When the weather is good, the protective cloth can be reeled back into the reel to remove the cover from the photovoltaic panel, allowing the photovoltaic panel to operate normally, thereby protecting the photovoltaic panel and extending its service life.

[0013] 2. The utility model is provided with a tensioning mechanism. After the protective cloth is unfolded downward, the hook plate can be used to hook the groove of the counterweight bar and slightly tightened downward, so that the two ends of the protective cloth are tensioned more forcefully and will not loosely cover the surface of the photovoltaic panel, thereby improving the protection effect of the photovoltaic panel. Moreover, the two ends of the protective cloth are fixed, which can prevent it from being blown away in windy days and failing to fully cover the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the enlarged cross-section of the winding drum of the present invention;

[0017] Figure 3 This is an enlarged structural diagram of the connection between the counterweight bar, the roller and the track of the utility model;

[0018] Figure 4 It is a schematic diagram of the enlarged cross-section structure between the tensioning mechanism and the counterweight bar of the present invention.

[0019] In the figure: 1. Mounting frame; 2. Photovoltaic panel; 3. Winding drum; 4. Protective cloth; 5. Tensioning mechanism; 31. Reel; 32. Servo motor; 41. Counterweight bar; 42. Roller; 43. Track; 44. Groove; 51. Hook plate; 52. Mounting plate; 53. Spring; 54. Electromagnet; 55. Telescopic rod. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1 As shown, a photovoltaic panel for photovoltaic energy storage includes a mounting frame 1, on which a photovoltaic panel 2 is mounted. A winding drum 3 is provided obliquely above the photovoltaic panel 2, and a protective cloth 4 for covering the surface of the photovoltaic panel 2 is rolled up in the winding drum 3; a tensioning mechanism 5 is provided obliquely below the photovoltaic panel 2; the protective cloth 4 is used to cover the surface of the photovoltaic panel 2 to prevent the surface of the photovoltaic panel 2 from being rubbed by the blown sand in windy and sandy weather, causing the panel surface to become rough, resulting in a decrease in light transmittance and affecting the photovoltaic conversion efficiency;

[0022] When the photovoltaic device is in use and encounters strong winds, the protective cloth 4 can be unwound from the reel 3 and covered on the surface of the photovoltaic panel 2 for protection. In addition, after the protective cloth 4 is extended to the lower end, it can be fastened to the counterweight bar 41 through the tensioning mechanism 5 and pulled downward, so that the protective cloth 4 can be tightened, thereby covering the photovoltaic panel 2 and protecting the photovoltaic panel 2.

[0023] By using the protective cloth 4, it can be extended from the winding drum 3 to cover the surface of the photovoltaic panel 2 in windy and sandy weather, thereby preventing the wind and sand from rubbing against the surface of the photovoltaic panel 2 and causing wear, which affects the photoelectric conversion efficiency. When the weather is good, the protective cloth 4 can be rolled up into the winding drum 3 to remove the cover of the photovoltaic panel 2, so that the photovoltaic panel 2 can work normally, thereby achieving the protection of the photovoltaic panel 2 and increasing its service life.

[0024] See also Figure 1 and Figure 2 As shown, a reel 31 is provided for rotation inside the reel drum 3, one end of the reel 31 is connected to a servo motor 32, and one end of the protective cloth 4 is connected to the reel 31;

[0025] The winding drum 3 can be used to store the protective cloth 4 after it is rolled up, and it also protects the protective cloth 4. During specific use, the servo motor 32 can drive the reel 31 to rotate forward in the winding drum 3 to reel the protective cloth 4 into the winding drum 3. When the servo motor 32 drives the reel 31 to reverse in the winding drum 3, the protective cloth 4 can be released from the winding drum 3.

[0026] See also Figure 3 As shown, the other end of the protective cloth 4 is connected to a counterweight bar 41, and rollers 42 are respectively provided at both ends of the counterweight bar 41. Each roller 42 is respectively set to roll in a track 43, and the two tracks 43 are respectively set on both sides of the photovoltaic panel 2;

[0027] The function of the counterweight bar 41 is to drive the protective cloth 4 to extend downward and stretch out when the protective cloth 4 is released by the reel 3, and when the counterweight bar 41 moves, it moves along the track 43 through the rollers 42 at both ends, which can ensure that the protective cloth 4 is displayed in the correct position and can completely cover the photovoltaic panel 2, thereby protecting the photovoltaic panel 2. In addition, the protective cloth 4 should be made of a material that is easy to fold and unfold.

[0028] See also Figure 4 As shown, a groove 44 is formed in the middle section of the lower end surface of the counterweight bar 41, and the tensioning mechanism 5 includes a hook plate 51. The hook plate 51 and the groove 44 are in a snap-fitting structure. The hook plate 51 is hinged to the mounting plate 52, and a spring 53 is further provided between the hook plate 51 and the mounting plate 52. An electromagnet 54 is further installed on the mounting plate 52 at a position corresponding to the spring 53. The electromagnet 54 and the hook plate 51 are magnetically connected. A telescopic rod 55 is further connected to the mounting plate 52, and the telescopic rod 55 is fixedly connected to the lower end of the track 43.

[0029] By using the tensioning mechanism 5, after the protective cloth 4 is unfolded downward, the hook plate 51 can be used to hook the groove 44 of the counterweight bar 41 and slightly tightened downward, so that the ends of the protective cloth 4 are more strongly tensioned and will not loosely cover the surface of the photovoltaic panel 2, thereby achieving a better protection effect on the photovoltaic panel 2. In addition, the two ends of the protective cloth 4 are fixed, which can also prevent it from being blown away in strong winds and failing to fully cover the photovoltaic panel 2.

[0030] During specific use, when the counterweight bar 41 pulls the protective cloth 4 downward and reaches the hook plate 51, it presses the end of the hook plate 51 with the hook to rotate slightly downward around the point where it is hinged to the mounting plate 52, and the spring 53 is slightly compressed during the rotation. When the end of the hook plate 51 with the hook reaches the groove 44, it is hooked in the groove 44, and then the counterweight bar 41 is driven downward by the retraction of the telescopic rod 55. During the distance that the retraction of the telescopic rod 55 drives the counterweight bar 41 to move downward, the protective cloth 4 can be tightened, and by cooperating with the reel 3, the two ends of the protective cloth 4 can be pulled, so that the protective cloth 4 is in a taut state, and can be bounced off when wind and sand hit the protective cloth 4;

[0031] When the protective cloth 4 needs to be retracted, the electromagnet 54 can be started and energized to generate magnetism, so that the end of the hook plate 51 with the spring 53 is attracted upward and the spring 53 is compressed, and the end of the hook plate 51 with the hook is slightly rotated downward around the point where it is hinged to the mounting plate 52. At this time, the hook plate 51 is released from the groove 44 of the counterweight bar 41, and then the servo motor 32 is started to pull up and retract the protective cloth 4.

[0032] Working principle: When the photovoltaic equipment is in use and encounters strong winds, the protective cloth 4 can be released from the reel 3 and covered on the surface of the photovoltaic panel 2 for protection. In addition, after the protective cloth 4 is extended to the lower end, it can be fastened to the counterweight bar 41 through the tightening mechanism 5 and pulled downward so that the protective cloth 4 can be tightened, thereby covering the photovoltaic panel 2 and protecting the photovoltaic panel 2.

[0033] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A photovoltaic panel for photovoltaic energy storage, characterized by: The invention comprises a mounting frame (1), a photovoltaic panel (2) is mounted on the mounting frame (1), a winding drum (3) is provided obliquely above the photovoltaic panel (2), and a protective cloth (4) for covering the surface of the photovoltaic panel (2) is wound inside the winding drum (3); A tensioning mechanism (5) is provided obliquely below the photovoltaic panel (2); The protective cloth (4) is used to cover the surface of the photovoltaic panel (2), thereby preventing the blown sand from rubbing against the surface of the photovoltaic panel (2) in windy and sandy weather, causing the panel surface to become hairy, resulting in a decrease in light transmittance and affecting photovoltaic conversion efficiency.

2. A photovoltaic panel for photovoltaic energy storage according to claim 1, characterized in that: A reel (31) is rotatably provided inside the reel drum (3), one end of the reel (31) is connected to a servo motor (32), and one end of the protective cloth (4) is connected to the reel (31).

3. A photovoltaic panel for photovoltaic energy storage according to claim 2, characterized in that: The other end of the protective cloth (4) is connected to a counterweight bar (41), and rollers (42) are respectively provided at both ends of the counterweight bar (41), and each roller (42) is respectively rolled in a track (43), and the two tracks (43) are respectively provided on both sides of the photovoltaic panel (2).

4. A photovoltaic panel for photovoltaic energy storage according to claim 3, characterized in that: A groove (44) is provided in the middle section of the lower end surface of the counterweight bar (41).

5. A photovoltaic panel for photovoltaic energy storage according to claim 4, characterized in that: The tensioning mechanism (5) includes a hook plate (51), a buckling structure is formed between the hook plate (51) and the groove (44), the hook plate (51) is hinged on the mounting plate (52), and a spring (53) is provided between the hook plate (51) and the mounting plate (52).

6. A photovoltaic panel for photovoltaic energy storage according to claim 5, characterized in that: An electromagnet (54) is also installed on the mounting plate (52) at a position corresponding to the spring (53), and the electromagnet (54) is magnetically connected to the hook plate (51). A telescopic rod (55) is also connected to the mounting plate (52), and the telescopic rod (55) is fixedly connected to the lower end of the track (43).

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