Photovoltaic power generation bracket assembly for power grid

Abstract

The present invention discloses a photovoltaic power generation support assembly for electric power grid, which relates to the field of photovoltaic power generation technology, including a photovoltaic panel, a base, a rotating frame rotatably connected to the base, and a driving assembly for driving the rotating frame to rotate, wherein the photovoltaic panel is rotatably connected to the rotating frame via a horizontal axis, and a cam groove is provided on the base; a pulling block is slidably connected to the rotating frame, and the bottom of the pulling block is slidably provided inside the cam groove, and the top of the pulling block is movably hinged with a connecting rod, and the other end of the connecting rod is movably hinged with the photovoltaic panel. Through the above technical scheme, the present invention realizes that in the process of the support assembly driving the photovoltaic panel to rotate with the sun, the tilt angle and orientation of the photovoltaic panel are adjusted at the same time, so as to always keep the sunlight perpendicular to the photovoltaic panel, promote the photovoltaic panel to receive solar radiation to the greatest extent, and thus improve the power generation efficiency of the photovoltaic panel.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic power generation, and in particular to a photovoltaic power generation bracket assembly for an electric power grid. Background Art

[0002] Photovoltaic power generation technology is a technology that directly converts solar energy into electrical energy. It uses the photovoltaic effect of the semiconductor interface to directly convert light energy into electrical energy. Photovoltaic power generation bracket components are an indispensable part of the photovoltaic power generation system. Their main function is to support and fix photovoltaic panels (i.e. solar panels) to ensure that the photovoltaic system can operate stably and efficiently.

[0003] Usually, the control bracket assembly drives the photovoltaic panel to rotate with the sun. The photovoltaic panel tracks the sun from east to west, so that the solar panel follows the path of the sun throughout the day. The photovoltaic panel can continuously face the sun and absorb solar radiation energy to the maximum extent, thereby significantly improving power generation efficiency.

[0004] The patent with announcement number CN117458972B discloses a rotating photovoltaic panel support frame, including a first base, a second base fixed to one end of the middle seat away from the first base, a support rod rotatably connected in the second base, a photovoltaic panel that can be rotatably adjusted is connected to the top of the support rod, a rotating assembly is provided at the bottom end of the support rod, an angle adjustment assembly is provided on the top end of the support rod, and a face cleaning assembly is provided in the first base. The irradiation angle of the photovoltaic panel can be adjusted by the cooperation of the rotating assembly and the angle adjustment assembly, so that the photovoltaic panel is always at the best irradiation angle.

[0005] In the prior art such as the above-mentioned patent, it is difficult to adjust the orientation and tilt angle of the photovoltaic panel at the same time during the process of the support frame driving the photovoltaic panel to adjust. In the morning and evening, the solar altitude angle (i.e., the angle between the sun's rays and the horizon) is small, and at noon, the solar altitude angle is large. Since it is difficult for the photovoltaic panel to adjust its tilt angle as the solar altitude angle changes, it is difficult for the photovoltaic panel to receive solar radiation to the greatest extent, thereby reducing the power generation efficiency of the photovoltaic panel. Summary of the invention

[0006] The object of the present invention is to provide a photovoltaic power generation bracket assembly for an electric power grid to solve the deficiencies in the above-mentioned prior art.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a photovoltaic power generation bracket assembly for an electric power grid, comprising a photovoltaic panel, a base, a rotating frame rotatably connected to the base, and a driving assembly for driving the rotating frame to rotate, wherein the photovoltaic panel is rotatably connected to the rotating frame via a horizontal axis, and a cam groove is provided on the base; a pulling block is slidably connected to the rotating frame, the bottom of the pulling block is slidably arranged inside the cam groove, the top of the pulling block is movably hinged with a connecting rod, and the other end of the connecting rod is movably hinged to the photovoltaic panel.

[0008] Furthermore, it also includes a cleaning component, which includes: a cleaning brush plate, which is vertically slidably connected to the rotating frame; a screw rod, which is rotatably connected to the rotating frame, and the screw rod is threadedly connected to one end of the cleaning brush plate; an outer arc-shaped rack, which is coaxially fixed on the outer wall of a circular groove opened on the base; an inner arc-shaped rack, which is coaxially fixed on the inner wall of the circular groove; a gear, which is coaxially fixed to the bottom of the screw rod and is located inside the circular groove, and the gear meshes with the outer arc-shaped rack and the inner arc-shaped rack in sequence during the movement of the gear along the circular groove.

[0009] Furthermore, a transverse guide rail is fixedly connected to the rear side of the rotating frame, a vertical guide rail is fixedly connected to the front side of the rotating frame, the pulling block is slidably connected to the transverse guide rail, and the cleaning brush plate is slidably connected to the vertical guide rail.

[0010] Furthermore, the cleaning brush plate includes a lifting plate, which is slidably arranged on the front side of the photovoltaic panel, and a sponge brush strip is slidably connected to the inner side wall of the lifting plate, and an elastic element is fixedly connected between the sponge brush strip and the lifting plate.

[0011] Furthermore, the photovoltaic panel includes a placement plate and a photovoltaic panel. The placement plate is connected to the rotating frame by rotating on a horizontal axis, and the photovoltaic panel is clamped inside the placement plate.

[0012] Furthermore, the cam groove includes a distance increasing slide groove, a distance reducing slide groove and a distance fixing slide groove which are connected end to end, and the distance fixing slide groove is arranged in a semicircular shape.

[0013] Furthermore, two abutment blocks are fixedly connected to the front side of the photovoltaic panel, and the bottom ends of the two abutment blocks are inclined.

[0014] Furthermore, a protective rotating cylinder is rotatably connected to the bottom of the pulling block, and the pulling block is slidably connected to the cam groove via the protective rotating cylinder.

[0015] Furthermore, the driving assembly includes a driving motor, the driving motor is fixedly connected to the bottom of the base, and the output end of the driving motor passes through the side wall of the base and is fixedly connected to the rotating frame.

[0016] In the above technical scheme, the present invention provides a photovoltaic power generation bracket assembly for an electric power grid, which drives the rotating frame to rotate by controlling the driving motor, and the rotating frame drives the photovoltaic panel to rotate with the sun. From morning to noon, the rotating frame drives the pulling block to rotate, so that the pulling block slides along the increasing distance slide groove, and under the common limiting action of the increasing distance slide groove and the transverse guide rail, the pulling block slides along the transverse guide rail in the direction away from the rotating frame, and the pulling block drives the photovoltaic panel to rotate through the connecting rod, and the placing plate drives the photovoltaic panel to rotate around the horizontal axis, so that the inclination angle of the photovoltaic panel gradually decreases. From noon to evening, the rotating frame continues to drive the photovoltaic panel to rotate with the sun, and the pulling block slides along the shortening distance slide groove, and under the common limiting action of the shortening distance slide groove and the transverse guide rail, the pulling block slides along the transverse guide rail. The guide rail slides toward the direction close to the rotating frame, and the pulling block drives the photovoltaic panel to rotate through the connecting rod, and the placing plate drives the photovoltaic panel to rotate around the horizontal axis, so that the inclination angle of the photovoltaic panel gradually increases, so that from morning to noon, the solar altitude angle gradually increases (the solar altitude angle gradually changes from zero degrees to ninety degrees), and the inclination angle of the photovoltaic panel gradually decreases (its inclination angle gradually changes from ninety degrees to zero degrees); from noon to evening, the solar altitude angle gradually decreases (the solar altitude angle gradually changes from ninety degrees to zero degrees), and the inclination angle of the photovoltaic panel gradually increases (its inclination angle gradually changes from zero degrees to ninety degrees), thereby always keeping the sunlight perpendicular to the photovoltaic panel, promoting the photovoltaic panel to receive solar radiation to the greatest extent, and thereby improving the power generation efficiency of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the front structure of a photovoltaic panel provided by an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the rear view structure of a photovoltaic panel provided in an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the rear view structure of a pulling block provided in an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the front structure of a pulling block provided in an embodiment of the present invention;

[0023] Figure 6A schematic diagram of the front structure of a cleaning brush plate provided in an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of the rear view structure of a cleaning brush plate provided in an embodiment of the present invention;

[0025] Figure 8 A schematic diagram of the structure of a drive motor provided in an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. Base; 11. Rotating frame; 12. Photovoltaic panel; 2. Cam groove; 21. Pull block; 22. Connecting rod; 31. Cleaning brush plate; 32. Screw; 33. Outer arc rack; 34. Inner arc rack; 35. Gear; 4. Horizontal axis; 41. Horizontal guide rail; 42. Vertical guide rail; 5. Lifting plate; 51. Sponge brush strip; 52. Elastic element; 6. Placement plate; 61. Photovoltaic panel; 7. Increasing distance slide; 71. Reducing distance slide; 72. Fixed distance slide; 8. Resistance block; 9. Protective drum; 10. Driving motor. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1

[0030] See also Figure 1-8 A photovoltaic power generation bracket assembly for an electric power grid provided in an embodiment of the present invention comprises a photovoltaic panel 12, a base 1, a rotating frame 11 rotatably connected to the base 1, and a driving assembly for driving the rotating frame 11 to rotate, wherein the photovoltaic panel 12 is rotatably connected to the rotating frame 11 through a horizontal axis 4, and a cam groove 2 is provided on the base 1; a pulling block 21 is slidably connected to the rotating frame 11, and the bottom of the pulling block 21 is slidably provided inside the cam groove 2, and a connecting rod 22 is movably hinged at the top of the pulling block 21, and the other end of the connecting rod 22 is movably hinged to the photovoltaic panel 12.

[0031] A transverse guide rail 41 is fixedly connected to the rear side of the rotating frame 11 , and the pulling block 21 is slidably connected to the transverse guide rail 41 . By setting the transverse guide rail 41 , the pulling block 21 is limited so that the pulling block 21 always slides back and forth along the transverse guide rail 41 .

[0032] The photovoltaic panel 12 includes a placement plate 6 and a photovoltaic panel 61. The placement plate 6 is rotatably connected to the rotating frame 11 via a horizontal axis 4. The photovoltaic panel 61 is clamped inside the placement plate 6. By arranging the placement plate 6 and the photovoltaic panel 61, when the placement plate 6 rotates around the horizontal axis 4, the placement plate 6 drives the photovoltaic panel 61 on its front side to rotate, thereby adjusting the inclination angle of the photovoltaic panel 61.

[0033] The cam groove 2 includes a distance-increasing chute 7, a distance-reducing chute 71 and a distance-fixing chute 72 which are connected end to end. The distance-fixing chute 72 is arranged in a semicircular shape. By arranging the distance-increasing chute 7, the distance-reducing chute 71 and the distance-fixing chute 72, from morning to noon, under the adjustment action of the distance-increasing chute 7, the pulling block 21 slides in the direction away from the rotating frame 11. From noon to evening, under the adjustment action of the distance-reducing chute 71, the pulling block 21 slides in the direction close to the rotating frame 11. From evening to morning, under the adjustment action of the distance-fixing chute 72, the position of the pulling block 21 on the rotating frame 11 is fixed.

[0034] The bottom of the pulling block 21 is rotatably connected with a protective rotating cylinder 9, and the pulling block 21 is slidingly connected to the cam groove 2 through the protective rotating cylinder 9. By setting the protective rotating cylinder 9, the pulling block 21 is slidingly connected to the cam groove 2 through the protective rotating cylinder 9, thereby reducing the friction resistance between the pulling block 21 and the cam groove 2, thereby reducing the wear of the pulling block 21 and further increasing the service life of the pulling block 21.

[0035] The driving assembly includes a driving motor 10, which is fixedly connected to the bottom of the base 1. The output end of the driving motor 10 passes through the side wall of the base 1 and is fixedly connected to the rotating frame 11. By setting the driving motor 10 and starting the driving motor 10, the driving motor 10 drives the rotating frame 11 to rotate on the top of the base 1 through the output end.

[0036] In the above technical scheme, the present invention provides a photovoltaic power generation bracket assembly for an electric power grid. By starting the driving motor 10, the driving motor 10 drives the rotating frame 11 to rotate on the top of the base 1 through the output end. The rotating frame 11 drives the photovoltaic panel 12 to rotate through the horizontal axis 4, so that the placement plate 6 drives the photovoltaic panel 61 on its front side to rotate with the sun. From morning to noon, the rotating frame 11 drives the pulling block 21 to rotate through the horizontal guide rail 41 on its rear side, and the pulling block 21 drives the protective rotating drum 9 at its bottom to rotate along the increasing distance. The slide groove 7 slides, and under the joint limiting action of the distance-increasing slide groove 7 and the transverse guide rail 41, the pulling block 21 slides along the transverse guide rail 41 in the direction away from the rotating frame 11, and the pulling block 21 drives the bottom end of the connecting rod 22 at its top to slide in the direction away from the placement plate 6, and the connecting rod 22 drives the photovoltaic panel 12 to rotate around the horizontal axis 4 through its top, and the placement plate 6 drives the photovoltaic panel 61 to rotate around the horizontal axis 4, so that the inclination angle of the photovoltaic panel 61 gradually decreases. From noon to night, the rotating frame 11 continues to drive the photovoltaic panel 61 to rotate with the sun. As the sun rotates, the pulling block 21 drives the protective rotating drum 9 to slide along the shortening chute 71. Under the joint limiting action of the shortening chute 71 and the transverse guide rail 41, the pulling block 21 slides along the transverse guide rail 41 toward the rotating frame 11. The pulling block 21 drives one end of the connecting rod 22 to approach the placement plate 6, so that the other end of the connecting rod 22 drives the placement plate 6 and the photovoltaic panel 61 to rotate around the horizontal axis 4, so that the inclination angle of the photovoltaic panel 61 gradually increases, so that the solar altitude angle gradually increases from morning to noon (sun altitude The tilt angle of the photovoltaic panel 61 gradually decreases (its tilt angle gradually changes from ninety degrees to zero degrees), and from noon to evening, the solar altitude angle gradually decreases (the solar altitude angle gradually changes from ninety degrees to zero degrees), and the tilt angle of the photovoltaic panel 61 gradually increases (its tilt angle gradually changes from zero degrees to ninety degrees), thereby always keeping the sunlight perpendicular to the photovoltaic panel 61, promoting the photovoltaic panel 61 to receive solar radiation to the greatest extent, thereby improving the power generation efficiency of the photovoltaic panel 61.

[0037] Embodiment 2

[0038] See also Figure 1-8Based on the same concept as the above-mentioned embodiment 1, this embodiment also includes a cleaning assembly, which includes: a cleaning brush plate 31, which is vertically slidably connected to the rotating frame 11; a screw rod 32, which is rotatably connected to the rotating frame 11, and the screw rod 32 is threadedly connected to one end of the cleaning brush plate 31; an outer arc-shaped rack 33, which is coaxially fixedly arranged on the outer wall of the circular groove opened on the base 1; an inner arc-shaped rack 34, which is coaxially fixedly arranged on the inner wall of the circular groove; a gear 35, which is coaxially fixedly connected to the bottom of the screw rod 32 and is located inside the circular groove, and the gear 35 is meshed with the outer arc-shaped rack 33 and the inner arc-shaped rack 34 in sequence during the movement along the circular groove. A vertical guide rail 42 is fixedly connected to the front side of the rotating frame 11, and the cleaning brush plate 31 is slidably connected to the vertical guide rail 42. The cleaning brush plate 31 includes a lifting plate 5, which is slidably arranged on the front side of the photovoltaic panel 12, and a sponge brush strip 51 is slidably connected to the inner side wall of the lifting plate 5, and an elastic element 52 is fixedly connected between the sponge brush strip 51 and the lifting plate 5. Two abutment blocks 8 are fixedly connected to the front side of the photovoltaic panel 12, and the bottom ends of the two abutment blocks 8 are both inclined.

[0039] In the above technical scheme, the photovoltaic power generation bracket assembly for power grid provided by the present invention, from evening to morning, by controlling the driving motor 10 to continue to drive the rotating frame 11 to rotate, the rotating frame 11 drives the pulling block 21 to rotate through the transverse guide rail 41, and the pulling block 21 drives the protective rotating drum 9 to slide along the fixed distance slide groove 72, under the common limiting action of the fixed distance slide groove 72 and the transverse guide rail 41, the position of the pulling block 21 in the transverse guide rail 41 is fixed, and the pulling block 21 is connected to the connecting rod 22. The photovoltaic panel 12 is limited so that the placement plate 6 and the photovoltaic panel 61 are always kept in a vertical state. The rotating frame 11 drives the screw 32 thereon to rotate, and the screw 32 drives the gear 35 at its bottom end to revolve around the axis of the base 1. The gear 35 is first meshed with the outer arc-shaped rack 33. Under the meshing action of the gear 35 and the outer arc-shaped rack 33, the outer arc-shaped rack 33 drives the gear 35 to rotate forward, and the gear 35 drives the screw 32 to rotate forward. Under the limiting action of the vertical guide rail 42, the screw The screw 32 drives the cleaning brush plate 31 to move vertically downward, and the lifting plate 5 drives the sponge brush strip 51 to move downward, so that the sponge brush strip 51 is separated from the two abutting blocks 8 on the front side of the photovoltaic panel 12, and the limit of the sponge brush strip 51 is released. The elastic element 52 pushes the sponge brush strip 51 to approach the placement plate 6, so that the sponge brush strip 51 abuts against the surface of the photovoltaic panel 61. The screw 32 drives the lifting plate 5 and the sponge brush strip 51 to move downward. After the gear 35 is separated from the outer arc-shaped rack 33, the gear 35 is then separated from the inner arc-shaped rack The gear 35 is meshed with the inner arc rack 34, and the inner arc rack 34 drives the gear 35 to rotate in the opposite direction under the meshing action of the gear 35 and the inner arc rack 34. The gear 35 drives the screw 32 to rotate in the opposite direction, and the screw 32 drives the lifting plate 5 and the sponge brush strip 51 to move upward. Under the reciprocating wiping action of the sponge brush strip 51, the sponge brush strip 51 cleans the dust on the surface of the photovoltaic panel 61 to prevent the dust adhering to the surface of the photovoltaic panel 61 from blocking the solar radiation, thereby improving the power generation efficiency of the photovoltaic panel 61.

[0040] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A photovoltaic power generation bracket assembly for a power grid, comprising a photovoltaic panel (12), a base (1), a rotating frame (11) rotatably connected to the base (1), and a driving assembly for driving the rotating frame (11) to rotate, characterized in that: The photovoltaic panel (12) is rotatably connected to the rotating frame (11) via a horizontal axis (4); a cam groove (2) is provided on the base (1); the cam groove (2) comprises a distance increasing slide groove (7), a distance reducing slide groove (71) and a distance fixing slide groove (72) connected end to end; the distance fixing slide groove (72) is arranged in a semicircular shape; A pulling block (21) is slidably connected to the rotating frame (11), a transverse guide rail (41) is fixedly connected to the rear side of the rotating frame (11), the pulling block (21) is slidably connected to the transverse guide rail (41), the bottom of the pulling block (21) is slidably arranged inside the cam groove (2), the bottom of the pulling block (21) is rotatably connected to a protective rotating cylinder (9), the pulling block (21) is slidably connected to the cam groove (2) via the protective rotating cylinder (9), the top of the pulling block (21) is movably hinged to a connecting rod (22), and the other end of the connecting rod (22) is movably hinged to the photovoltaic panel (12).

2. A photovoltaic power generation bracket assembly for a power grid according to claim 1, characterized in that: Also included is a cleaning component, the cleaning component comprising: A cleaning brush plate (31) vertically slidably connected to the rotating frame (11); A screw rod (32) rotatably connected to the rotating frame (11), wherein the screw rod (32) is threadably connected to one end of the cleaning brush plate (31); An outer arc-shaped rack (33) is coaxially fixedly arranged on the outer wall of a circular groove formed on the base (1); An inner arc-shaped rack (34) coaxially fixedly disposed on the inner wall of the circular groove; The gear (35) is coaxially fixedly connected to the bottom of the screw rod (32) and is located inside the circular groove. When the gear (35) moves along the circular groove, it meshes with the outer arc-shaped rack (33) and the inner arc-shaped rack (34) in sequence.

3. A photovoltaic power generation bracket assembly for a power grid according to claim 2, characterized in that: A vertical guide rail (42) is fixedly connected to the front side of the rotating frame (11), and the cleaning brush plate (31) is slidably connected to the vertical guide rail (42).

4. A photovoltaic power generation bracket assembly for a power grid according to claim 2, characterized in that: The cleaning brush plate (31) comprises a lifting plate (5), the lifting plate (5) being slidably arranged on the front side of the photovoltaic panel (12), a sponge brush strip (51) being slidably connected to the inner side wall of the lifting plate (5), and an elastic element (52) being fixedly connected between the sponge brush strip (51) and the lifting plate (5).

5. A photovoltaic power generation bracket assembly for a power grid according to claim 1, characterized in that: The photovoltaic panel (12) comprises a placement plate (6) and a photovoltaic panel (61); the placement plate (6) is rotatably connected to the rotating frame (11) via a horizontal axis (4); and the photovoltaic panel (61) is clamped inside the placement plate (6).

6. A photovoltaic power generation bracket assembly for a power grid according to claim 1, characterized in that: Two abutment blocks (8) are fixedly connected to the front side of the photovoltaic panel (12), and the bottom ends of the two abutment blocks (8) are both arranged in an inclined manner.

7. A photovoltaic power generation bracket assembly for a power grid according to claim 1, characterized in that: The driving assembly comprises a driving motor (10), wherein the driving motor (10) is fixedly connected to the bottom of the base (1), and an output end of the driving motor (10) passes through a side wall of the base (1) and is fixedly connected to a rotating frame (11).

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