Distributed photovoltaic grid-connected protection equipment

Abstract

The utility model belongs to the technical field of photovoltaic equipment, in particular to distributed photovoltaic grid-connected protection equipment, which comprises a protection box, a lifting seat is arranged in the protection box through a lifting mechanism, and photovoltaic module mounting racks are rotatably arranged at two ends of the top of the lifting seat through rotating shafts. Angle adjusting mechanisms used for adjusting the steering angle of the photovoltaic module mounting frame are arranged on the two sides of the lifting base, and a photovoltaic module is arranged on the photovoltaic module mounting frame through a mounting groove and a mounting hole. According to the utility model, the lifting seat can lift up and down more accurately and stably through the lifting mechanism; the lifting mechanism drives the lifting seat to descend into the protection box for storage and protection, so that the photovoltaic module is prevented from being collided and damaged by foreign objects during placement, and the safety of the photovoltaic module is improved; after the cover plate is covered, the photovoltaic module is prevented from being stained with dust to affect performance. And when the photovoltaic module is unfolded to work, the angle adjusting mechanism can drive the photovoltaic module mounting rack to rotate on the lifting seat, so that the angle adjustment of the photovoltaic module is realized, and the photovoltaic conversion efficiency of the photovoltaic module is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic equipment, and in particular relates to a distributed photovoltaic grid-connected protection device. Background Art

[0002] Distributed photovoltaic power generation refers to a distributed generation system that uses photovoltaic modules to directly convert solar energy into electricity. It is a new and promising method for power generation and comprehensive energy utilization, advocating for local generation, grid connection, conversion, and utilization. Grid-connected photovoltaic protection equipment is widely used in photovoltaic power generation.

[0003] After searching, the patent document with application number 202021624997.5 discloses a distributed photovoltaic grid-connected protection device. The application is equipped with a braking mechanism, which controls the contact and separation between the limit column and the brake hole by pressing and loosening the pressure plate, and then the photovoltaic component can be folded and shrunk, thereby reducing the space occupied by the equipment, effectively preventing foreign objects from causing wear and collision on the photovoltaic component and causing damage to the photovoltaic component, and improving safety performance. Compared with the existing technology, this utility model has a simple structure, occupies a small space, is easy to operate, and is convenient to carry and install.

[0004] However, the above-mentioned protective equipment cannot store and protect the photovoltaic modules. When placed, the photovoltaic modules are easily damaged by collisions with foreign objects and easily contaminated by dust, which affects their performance.

[0005] When the above-mentioned protective equipment is unfolding the photovoltaic module, it is necessary to ensure that the support rod is in the vertical direction in order to accurately lock the entire device; and the photovoltaic module is fixedly installed on the top of the support plate, and the photovoltaic module cannot be adjusted in angle, which affects the photovoltaic conversion efficiency. Summary of the Invention

[0006] To solve the problems raised in the above background technology. The utility model provides a distributed photovoltaic grid-connected protection device, which makes the lifting seat more accurate and stable when lifting and lowering through the lifting mechanism; the lifting mechanism drives the lifting seat down to the protective box for storage and protection, preventing the photovoltaic components from being damaged by foreign objects when placed, thereby improving their safety; after covering the cover, the photovoltaic components are prevented from being stained by dust and affecting their performance. When the photovoltaic components are working, the angle adjustment mechanism can drive the photovoltaic component mounting frame to rotate the angle on the lifting seat, thereby adjusting the angle of the photovoltaic components and improving the photovoltaic conversion efficiency of the photovoltaic components.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a distributed photovoltaic grid-connected protection device, comprising a protective box, a lifting seat is provided inside the protective box through a lifting mechanism, photovoltaic component mounting frames are provided on both ends of the top of the lifting seat through rotating shafts, angle adjustment mechanisms for adjusting the steering angle of the photovoltaic component mounting frame are provided on both sides of the lifting seat, and photovoltaic components are provided on the photovoltaic component mounting frame through mounting grooves and mounting holes.

[0008] As a preferred solution, the lifting mechanism includes a coaxial bidirectional screw, a movable seat, a hinge seat and a lifting support rod; the coaxial bidirectional screw is installed at the bottom of the protective box through the screw seat, and a movable seat is connected on both sides of the coaxial bidirectional screw through a first screw slider. The bottom of the movable seat is slidably connected to the slide groove at the bottom of the protective box through a slider, and the top of the movable seat is connected to the lifting support rod through the hinge seat, and the top of the lifting support rod is connected to the bottom of the lifting seat through the hinge seat; one end of the coaxial bidirectional screw passes through the protective box and is connected to the first rotating handle.

[0009] As a preferred solution, the angle adjustment mechanism includes an adjusting screw, an adjusting rod, and a guide rod; the adjusting screw and the guide rod are respectively installed on the top of the lifting seat, the adjusting screw is provided with a second screw slider, and a guide slider slides on the guide rod, and the inner side surfaces of the second screw slider and the guide slider are connected with the adjusting rod through a rotating shaft seat, and the other end of the adjusting rod is connected to the bottom front end of the photovoltaic component mounting frame through the rotating shaft seat; one end of the adjusting screw passes through the lifting seat and is connected to the second rotating handle.

[0010] As a preferred solution, a cover plate is provided on the top of the protection box via a hinge connection.

[0011] As a preferred solution, support legs are provided at the bottom of the protection box.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model rotates the first rotating handle to drive the coaxial bidirectional screw to rotate, drive the two moving seats to move toward each other, and drive the lifting seat to move upward by driving the lifting support rod; the lifting mechanism makes the lifting seat more accurate and stable in lifting and lowering; when the photovoltaic component is not in use, the lifting mechanism drives the lifting seat to descend to the inside of the protective box for storage and protection, preventing the photovoltaic component from being damaged by collision with foreign objects when placed, thereby improving its safety; after covering the cover plate, the photovoltaic component is prevented from being stained with dust when placed to affect its performance.

[0014] When the photovoltaic module is unfolded to perform photovoltaic conversion, the second rotating handle is rotated to rotate the adjusting screw rod via the second screw rod slider to drive the adjusting rod to move. During the movement of the adjusting rod, the photovoltaic module mounting frame can be driven to rotate the angle on the lifting seat via the rotating shaft seat, thereby realizing the angle adjustment of the photovoltaic module to meet the orientation of the photovoltaic module and improve the photovoltaic conversion efficiency of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the front structure of FIG.

[0017] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle BB surface isometric view;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the connection between the angle adjustment mechanism and the photovoltaic module mounting frame in the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the connection between the angle adjustment mechanism and the photovoltaic module mounting frame in the present invention;

[0020] Figure 6 It is a schematic diagram of the overall structure of the utility model.

[0021] Description of Figure Numbers:

[0022] 1. Protective box; 11. Support legs; 12. Cover plate; 13. Slide;

[0023] 2. Lifting mechanism; 21. Coaxial bidirectional screw; 22. Moving seat; 23. Hinge seat; 24. Lifting support rod; 25. First rotating handle; 26. Slider;

[0024] 3. Lifting seat;

[0025] 4. Angle adjustment mechanism; 41. Adjusting screw; 42. Second screw slider; 43. Adjusting rod; 44. Rotating shaft seat; 45. Second rotating handle; 46. Guide rod; 47. Guide slider;

[0026] 5. Photovoltaic module mounting frame; 6. Photovoltaic module; 7. Rotating shaft;

[0027] 11. Support legs; 12. Cover plate; 13. Slide groove. DETAILED DESCRIPTION

[0028] The following will be combined with the 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.

[0029] Example 1

[0030] See also Figure 1-6 , the utility model provides the following technical solutions: a distributed photovoltaic grid-connected protection device, comprising a protection box 1, wherein a lifting seat 3 is provided inside the protection box 1 through a lifting mechanism 2, and photovoltaic component mounting frames 5 are provided on both ends of the top of the lifting seat 3 through a rotating shaft 7, and angle adjustment mechanisms 4 for adjusting the steering angle of the photovoltaic component mounting frame 5 are provided on both sides of the lifting seat 3, and photovoltaic components 6 are provided on the photovoltaic component mounting frame 5 through mounting grooves and mounting holes; the lifting mechanism 2 comprises a coaxial bidirectional screw rod 21, a movable seat 22, a hinge seat 23 and a lifting support rod 24; the coaxial bidirectional screw rod 21 is installed at the bottom of the protection box 1 through the screw rod seat, and a movable seat 22 is connected on both sides of the coaxial bidirectional screw rod 21 through a first screw rod slider, the bottom of the movable seat 22 is slidably connected to the slide groove 13 at the bottom of the protection box 1 through a slider 26, and the top of the movable seat 22 is connected to the bottom of the protection box 1 through the hinge seat 23 It is connected to a lifting support rod 24, the top of which is connected to the bottom of the lifting seat 3 through a hinge seat 23; one end of the coaxial bidirectional screw rod 21 passes through the protective box 1 and is connected to a first rotating handle 25; when the photovoltaic module is used and unfolded, the cover 12 on the top of the protective box 1 is opened, and the first rotating handle 25 is rotated to drive the coaxial bidirectional screw rod 21 to rotate, driving the two moving seats 22 to move toward each other. During the movement of the moving seat 22, the lifting seat 3 is supported by the hinged lifting support rod 24 and moves upward until it moves out of the protective box 1; the lifting mechanism 2 makes the lifting and lowering of the lifting seat 3 more precise and stable; when the photovoltaic module is not in use, the lifting mechanism 2 drives the lifting seat 3 to descend into the protective box 1 for storage and protection, to prevent the photovoltaic module from being damaged by collision with foreign objects when placed, thereby improving its safety; after covering the cover 12, the photovoltaic module is prevented from being stained with dust and affecting its performance when placed.

[0031] The second screw slider 42 is provided on the adjusting screw 41, and a guide slider 47 is provided on the guide rod 46. The inner sides of the second screw slider 42 and the guide slider 47 are connected to the adjusting rod 43 through the rotating shaft seat 44. The other end of the adjusting rod 43 is connected to the bottom front end of the photovoltaic module mounting frame 5 through the rotating shaft seat 44. One end of the adjusting screw 41 passes through the lifting seat 3 and is connected to the second rotating handle 45. When the photovoltaic module is unfolded to perform photovoltaic conversion, the second rotating handle 45 is rotated to rotate the adjusting screw 41 via the second screw slider 42 to drive the adjusting rod 43 to move. During the movement of the adjusting rod 43, the photovoltaic module mounting frame 5 can be driven to rotate the angle on the lifting seat 3 via the rotating shaft seat 44, thereby realizing the angle adjustment of the photovoltaic module 6 to meet the orientation of the photovoltaic module 6 and improve the photovoltaic conversion efficiency of the photovoltaic module 6.

[0032] In this embodiment, a cover plate 12 is provided on the top of the protection box 1 via a hinge.

[0033] In this embodiment, support legs 11 are provided at the bottom of the protection box 1 .

[0034] The working principle and usage process of the present invention are as follows: when the photovoltaic module is deployed for use, the cover 12 on the top of the protective box 1 is opened, and the first rotating handle 25 is rotated to drive the coaxial bidirectional screw 21 to rotate, driving the two moving seats 22 to move toward each other. During the movement of the moving seat 22, the lifting seat 3 is supported and driven by the hinged lifting support rod 24 to move upward until it moves out of the protective box 1; the lifting mechanism 2 is used to make the lifting and lowering of the lifting seat 3 more accurate and stable; when the photovoltaic module is not in use, the lifting mechanism 2 drives the lifting seat 3 to descend to the inside of the protective box 1 for storage and protection, preventing the photovoltaic module from being damaged by collision with foreign objects when placed, thereby improving its safety; after covering the cover 12, the photovoltaic module is prevented from being stained with dust and affecting its performance when placed.

[0035] When the photovoltaic component is unfolded to perform photovoltaic conversion, the second rotating handle 45 is rotated to rotate the adjusting screw 41 and drive the adjusting rod 43 to move via the second screw slider 42. During the movement of the adjusting rod 43, the photovoltaic component mounting frame 5 can be driven to rotate the angle on the lifting seat 3 via the rotating shaft seat 44, thereby realizing the angle adjustment of the photovoltaic component 6 to meet the orientation of the photovoltaic component 6 and improve the photovoltaic conversion efficiency of the photovoltaic component 6.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A distributed photovoltaic grid-connected protection device, comprising a protection box (1), characterized in that: A lifting seat (3) is provided inside the protective box (1) via a lifting mechanism (2); photovoltaic component mounting frames (5) are rotatably provided on both ends of the top of the lifting seat (3) via rotating shafts (7); angle adjustment mechanisms (4) for adjusting the steering angle of the photovoltaic component mounting frame (5) are provided on both sides of the lifting seat (3); and photovoltaic components (6) are provided on the photovoltaic component mounting frame (5) via mounting grooves and mounting holes.

2. The distributed photovoltaic grid-connected protection device according to claim 1, characterized in that: The lifting mechanism (2) comprises a coaxial bidirectional screw (21), a movable seat (22), a hinge seat (23) and a lifting support rod (24); the coaxial bidirectional screw (21) is installed on the bottom of the protective box (1) through the screw seat, and the movable seat (22) is connected to both sides of the coaxial bidirectional screw (21) through a first screw slider, the bottom of the movable seat (22) is slidably connected to the slide groove (13) at the bottom of the protective box (1) through a slider (26), the top of the movable seat (22) is connected to the lifting support rod (24) through the hinge seat (23), and the top of the lifting support rod (24) is connected to the bottom of the lifting seat (3) through the hinge seat (23); one end of the coaxial bidirectional screw (21) passes through the protective box (1) and is connected to the first rotating handle (25).

3. The distributed photovoltaic grid-connected protection device according to claim 1, characterized in that: The angle adjustment mechanism (4) comprises an adjusting screw (41), an adjusting rod (43), and a guide rod (46); the adjusting screw (41) and the guide rod (46) are respectively mounted on the top of the lifting seat (3); a second screw slider (42) is provided on the adjusting screw (41); a guide slider (47) slides on the guide rod (46); the inner side surfaces of the second screw slider (42) and the guide slider (47) are connected to the adjusting rod (43) via a rotating shaft seat (44); the other end of the adjusting rod (43) is connected to the bottom of the front end of the photovoltaic module mounting frame (5) via the rotating shaft seat (44); one end of the adjusting screw (41) passes through the lifting seat (3) and is connected to the second rotating handle (45).

4. The distributed photovoltaic grid-connected protection device according to claim 1, characterized in that: A cover plate (12) is provided on the top of the protection box (1) via a hinge connection.

5. The distributed photovoltaic grid-connected protection device according to claim 1, characterized in that: The bottom of the protection box (1) is provided with supporting feet (11).

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