Grid-connected box suitable for distributed photovoltaic access in rural area
By designing rotatable clamping components and pullable cleaning blocks in the grid-connected box, the problems of line mess and dust accumulation are solved, and the lines are sorted and fixed, ensuring the normal operation and heat dissipation of the equipment.
Patent Information
- Application Number
- CN202421245141.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-03
AI Technical Summary
When the existing grid-connected boxes are in use, the internal lines are messy and difficult to maintain; in rural environments, dust is prone to accumulation, resulting in blockage of the heat dissipation port and affecting the normal operation of the equipment.
A grid-connected box suitable for rural access to distributed photovoltaics is designed, using rotatable clamping components and pullable cleaning blocks. The line is organized and fixed through threaded rods and movable clamps, and dust cleaning and ventilation openings are achieved through pulling blocks and connecting lines.
The lines are sorted and fixed, reducing the difficulty and time of maintenance; by cleaning up dust, the normal heat dissipation and operation of the equipment are ensured, and the service life of the equipment is extended.
Smart Images
Figure CN222582070U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grid-connected boxes, in particular to a grid-connected box suitable for rural areas to access distributed photovoltaics. Background Art
[0002] The grid-connected box is a device used in photovoltaic power generation systems. Its main function is to connect the electricity generated by the photovoltaic power generation system to the power grid and to distribute, measure and protect the electricity.
[0003] When the existing grid-connected box is in use, its internal wiring is messy. When maintenance workers check the wiring, they need to untie it. At the same time, when it is used in rural areas, there is a lot of dust, which causes dust to accumulate at the heat dissipation port of the box. In severe cases, it will block it and make it impossible to dissipate heat. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a grid-connected box suitable for rural access to distributed photovoltaics, which has the advantages of line organization and dust cleaning, and solves the problems raised by the above-mentioned background technology.
[0005] The utility model provides the following technical solution: a grid-connected box suitable for rural access to distributed photovoltaics, comprising a box body, the inner wall of the box body is fixedly equipped with a box door, the inner wall of the box body is slidably connected with a pull block, the outer wall of the box body is fixedly equipped with a water retaining block, one side of the pull block close to the inner wall of the box body is fixedly equipped with one side of a connecting block, the other side of the connecting block is fixedly equipped with a cleaning block, the inner wall of the box body is provided with a vent, the inner wall of the box body is rotatably connected with a winding shaft, the inner wall of the winding shaft is fixedly equipped with a clockwork spring, the inner wall of the box body is fixedly equipped with a guide rail, the inner wall of the box body is provided with a wire clamping assembly, and the outer wall of the winding shaft is fixedly connected with a connecting wire.
[0006] As a preferred technical solution of the utility model, the wire clamping assembly includes a fixed block, the outer wall of the fixed block is respectively fixedly installed with an extension plate, a fixed clamp and a fixed shell, the inner wall of the fixed shell is slidably connected with a movable clamp, the inner wall of the extension plate is rotatably connected with a threaded rod, the inner wall of the fixed clamp is slidably connected with a clamping piece, and the inner wall of the fixed clamp is provided with an expansion spring.
[0007] As a preferred technical solution of the utility model, the movable clamp is matched with the inner wall of the fixed shell, and the threaded rod extends into the inner wall of the movable clamp, and the threaded rod and the movable clamp are threadedly connected.
[0008] As a preferred technical solution of the utility model, an extension piece is provided on one side of the clip close to the fixing clip, and the extension piece is located on the inner wall of the fixing clip, and the extension piece on the clip has the same diameter as the inner wall of the fixing clip.
[0009] As a preferred technical solution of the utility model, the guide rail passes through the cleaning block, and the outer wall of the cleaning block is provided with a plurality of protrusions, the cleaning block protrusions are located inside the vent, and the inner wall size of the vent is adapted to the protrusions on the outer wall of the cleaning block.
[0010] As a preferred technical solution of the utility model, the connecting wire passes through the outer wall of the box body, and one end of the connecting wire away from the winding shaft is connected to the cleaning block.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. The grid-connected box suitable for rural access to distributed photovoltaics, by rotating the threaded rod, the threaded rod drives the movable clamp to move toward the inside of the fixed shell, so that the movable clamp and the fixed clamp are separated, and the line is placed between them, and the threaded rod is rotated to reset the movable clamp. At this time, the movable clamp and the fixed clamp are fitted, and the fitting of the fixed clamp causes the line to be squeezed against the clip, and then the clip moves toward the inside of the expansion spring, so that the clip squeezes the line toward the direction of the movable clamp, and then the line is fixed.
[0013] 2. The grid-connected box is suitable for rural areas connected to distributed photovoltaics. By pulling the pulling block, the pulling block drives the connecting block to move, and the connecting block drives the cleaning block to move, so that the cleaning block cleans the dust inside the vent. When the cleaning block moves, it drives one end of the connecting line to move, so that the other end of the connecting line drives the winding shaft to rotate, so that the shape of the clockwork spring changes. When the inside of the vent is cleaned, the winding shaft is reeled back and the connecting line is reeled back through the restoring force of the clockwork spring, driving the cleaning block to reset, and completing the cleaning of the inside of the vent. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the connection block of the utility model;
[0016] Figure 3 This is a schematic diagram of the vent structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the wire clamping assembly of the utility model;
[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the wire clamping assembly of the utility model;
[0019] Figure 6 It is a schematic diagram of the structure of the cleaning block of the utility model.
[0020] In the figure: 1, box body; 2, box door; 3, pull block; 4, water retaining block; 5, connecting block; 6, guide rail; 7, wire clamp assembly; 8, vent; 9, cleaning block; 10, winding shaft; 11, spring; 12, connecting wire;
[0021] 701, fixed block; 702, extension plate; 703, fixed clip; 704, fixed shell; 705, movable clip; 706, threaded rod; 707, expansion spring; 708, clip. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-Figure 6 A grid-connected box suitable for rural access to distributed photovoltaics, comprising a box body 1, a box door 2 is fixedly installed on the inner wall of the box body 1, a pull block 3 is slidably connected to the inner wall of the box body 1, a water retaining block 4 is fixedly installed on the outer wall of the box body 1, one side of the pull block 3 close to the inner wall of the box body 1 is fixedly installed with one side of a connecting block 5, and the other side of the connecting block 5 is fixedly installed with a cleaning block 9, a vent 8 is opened on the inner wall of the box body 1, a winding shaft 10 is rotatably connected to the inner wall of the winding shaft 10, a spring spring 11 is fixedly installed on the inner wall of the box body 1, a guide rail 6 is fixedly installed on the inner wall of the box body 1, a wire clamping assembly 7 is provided on the inner wall of the box body 1, and a connecting wire 12 is fixedly connected to the outer wall of the winding shaft 10. In the above structure, the number of guide rails 6 is two, and the two guide rails 6 are symmetrically distributed on the upper and lower sides of the box body 1.
[0024] In a preferred embodiment, the clamping assembly 7 includes a fixed block 701, the outer wall of the fixed block 701 is respectively fixedly mounted with an extension plate 702, a fixed clamp 703 and a fixed shell 704, the inner wall of the fixed shell 704 is slidably connected with a movable clamp 705, the inner wall of the extension plate 702 is rotatably connected with a threaded rod 706, the inner wall of the fixed clamp 703 is slidably connected with a clip 708, and the inner wall of the fixed clamp 703 is provided with an expansion spring 707. In the above structure, the threaded rod 706 is rotated, and the threaded rod 706 drives the movable clamp 70 5 moves toward the inside of the fixed shell 704. When the movable clamp 705 reaches the inside of the fixed shell 704, the cable is placed between the fixed clamp 703 and the movable clamp 705, and the threaded rod 706 is rotated to reset the movable clamp 705. At this time, the movable clamp 705 and the fixed clamp 703 are fitted together, and the fitting of the fixed clamp 703 causes the line to be pressed against the clip 708, so that the clip 708 moves toward the inside of the expansion spring 707, so that the clip 708 presses the line toward the direction of the movable clamp 705, so that the line is fixed.
[0025] In a preferred embodiment, the movable clamp 705 is adapted to the inner wall of the fixed shell 704, and the threaded rod 706 extends into the inner wall of the movable clamp 705, and the threaded rod 706 and the movable clamp 705 are threadedly connected. In the above structure, by rotating the threaded rod 706, the threaded rod 706 drives the movable clamp 705 to move toward the fixed shell 704 through the thread of the outer wall, so that the movable clamp 705 has moving space through the fixed shell 704.
[0026] In a preferred embodiment, an extension piece is provided on one side of the clip 708 close to the fixing clip 703, and the extension piece is located on the inner wall of the fixing clip 703. The extension piece on the clip 708 has the same diameter as the inner wall of the fixing clip 703. In the above structure, the extension piece on the outer wall of the clip 708 prevents the clip 708 from detaching from the inner wall of the fixing clip 703.
[0027] In a preferred embodiment, the guide rail 6 passes through the cleaning block 9, and the outer wall of the cleaning block 9 is provided with a plurality of protrusions, the protrusions of the cleaning block 9 are located inside the vent 8, and the inner wall size of the vent 8 is adapted to the protrusions on the outer wall of the cleaning block 9. In the above structure, the cleaning block 9 is limited by the guide rail 6 so that the cleaning block 9 will not be offset when the cleaning block 9 is pulled by the pulling block 3 and the connecting block 5.
[0028] In a preferred embodiment, the connecting wire 12 passes through the outer wall of the box body 1, and the end of the connecting wire 12 away from the winding shaft 10 is connected to the cleaning block 9. In the above structure, one end of the connecting wire 12 is moved by pulling the cleaning block 9, and then the other end of the connecting wire 12 drives the winding shaft 10 to rotate. The rotation of the winding shaft 10 changes the shape of the clockwork spring 11. When the tension disappears, the clockwork spring 11 recovers, driving the winding shaft 10 to rewind, and then the connecting wire 12 pulls the cleaning block 9 to reset it.
[0029] Working principle: when using the device, after the internal components are installed, the threaded rod 706 is rotated, and the threaded rod 706 drives the movable clamp 705 to move toward the inside of the fixed shell 704. When the movable clamp 705 reaches the inside of the fixed shell 704, the cable is placed between the fixed clamp 703 and the movable clamp 705, and the threaded rod 706 is rotated to reset the movable clamp 705. At this time, the movable clamp 705 and the fixed clamp 703 are fitted together, and the line is squeezed against the clip 708 through the fitting of the fixed clamp 703, so that the clip 708 moves toward the inside of the expansion spring 707, so that the clip 708 squeezes the line in the direction of the movable clamp 705, so that the line is fixed, and the plurality of fixed clamps 703 and movable clamps arranged above the clamp assembly 7 are used. Clamp 705 can classify and clamp the circuits of all components, so that workers can quickly identify the circuits when maintaining them. When the inside of the vent 8 needs to be cleaned, pull the pull block 3, and the pull block 3 drives the connecting block 5 to move, and the connecting block 5 drives the cleaning block 9 to move. Through the extension block provided on the outside of the cleaning block 9, the cleaning block 9 cleans the dust inside the vent 8. When the cleaning block 9 moves, it drives one end of the connecting line 12 to move, so that the other end of the connecting line 12 drives the winding shaft 10 to rotate, thereby causing the clockwork spring 11 to change. When the inside of the vent 8 is cleaned, the winding shaft 10 is reeled back and the connecting line 12 is reeled back through the restoring force of the clockwork spring 11, driving the cleaning block 9 to reset, thereby completing the cleaning of the inside of the vent 8.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A grid-connected box suitable for rural access to distributed photovoltaic power generation, comprising a box body (1), characterized in that: The inner wall of the box body (1) is fixedly equipped with a box door (2), the inner wall of the box body (1) is slidably connected with a pull block (3), the outer wall of the box body (1) is fixedly equipped with a water retaining block (4), the side of the pull block (3) close to the inner wall of the box body (1) is fixedly equipped with one side of a connecting block (5), and the other side of the connecting block (5) is fixedly equipped with a cleaning block (9), the inner wall of the box body (1) is provided with a ventilating hole (8), the inner wall of the box body (1) is rotatably connected with a winding shaft (10), the inner wall of the winding shaft (10) is fixedly equipped with a clockwork spring (11), the inner wall of the box body (1) is fixedly equipped with a guide rail (6), the inner wall of the box body (1) is provided with a wire clamping assembly (7), and the outer wall of the winding shaft (10) is fixedly connected with a connecting wire (12).
2. A grid-connected box suitable for rural access to distributed photovoltaics according to claim 1, characterized in that: The wire clamping assembly (7) comprises a fixed block (701), the outer wall of which is respectively fixedly mounted with an extension plate (702), a fixed clamp (703) and a fixed shell (704), the inner wall of the fixed shell (704) is slidably connected with a movable clamp (705), the inner wall of the extension plate (702) is rotatably connected with a threaded rod (706), the inner wall of the fixed clamp (703) is slidably connected with a clamping piece (708), and the inner wall of the fixed clamp (703) is provided with an expansion spring (707).
3. A grid-connected box suitable for rural access to distributed photovoltaics according to claim 2, characterized in that: The movable clamp (705) is adapted to the inner wall of the fixed shell (704), and the threaded rod (706) extends into the inner wall of the movable clamp (705), and the threaded rod (706) and the movable clamp (705) are threadedly connected.
4. A grid-connected box suitable for rural access to distributed photovoltaics according to claim 2, characterized in that: An extension piece is provided on one side of the clip (708) close to the fixing clip (703), and the extension piece is located on the inner wall of the fixing clip (703). The extension piece on the clip (708) has the same diameter as the inner wall of the fixing clip (703).
5. A grid-connected box suitable for rural access to distributed photovoltaics according to claim 1, characterized in that: The guide rail (6) passes through the cleaning block (9), and the outer wall of the cleaning block (9) is provided with a plurality of protrusions, the protrusions of the cleaning block (9) are located inside the ventilation opening (8), and the size of the inner wall of the ventilation opening (8) is matched with the protrusions on the outer wall of the cleaning block (9).
6. A grid-connected box suitable for rural access to distributed photovoltaics according to claim 1, characterized in that: The connecting wire (12) passes through the outer wall of the box body (1), and one end of the connecting wire (12) away from the winding shaft (10) is connected to the cleaning block (9).