Sealing protection structure for junction box of photovoltaic power station

Abstract

The invention relates to the field of photovoltaic energy storage, and discloses a photovoltaic power station line concentration box sealing protection structure which comprises a line concentration box body, a sealing door is arranged on the outer wall of the line concentration box body, a first handle is fixedly connected to the outer wall of the sealing door, a wiring port is formed in the line concentration box body, and a second handle is fixedly connected to the outer wall of the first handle. A wire arrangement plate is slidably connected into the wire concentration box body, a supporting shell is fixedly connected to the outer wall of the wire concentration box body, a supporting block is fixedly connected to the outer wall of the supporting shell, a motor is fixedly connected into the supporting block, and a first transmission assembly is arranged at the output end of the motor. The limiting block is fixedly connected with the toothed plate and the sliding block, so that the limiting block can move along with movement of the toothed plate and the sliding block, rapid locking and unlocking of the sealing door are achieved through movement of the limiting block, maintenance operation of later maintenance workers on the line concentration box body is facilitated, and the effect of improving the working efficiency is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic energy storage, in particular to a sealing protection structure of a photovoltaic power station junction box. Background Art

[0002] Photovoltaic power stations are power generation sites that use solar photovoltaic power generation systems to convert solar energy into electrical energy. They are mainly composed of photovoltaic modules, inverters, bracket systems, junction boxes, distribution boxes, and grid access systems. They use the solar cells in the photovoltaic modules to directly convert solar energy into direct current, and then use the inverter to convert the direct current into alternating current. After boosting and other processing, they are connected to the grid to provide electricity for users. They usually also have a junction box, which can be used to gather the output lines of multiple photovoltaic modules together, and then distribute the electricity to different branches or equipment as needed. This makes it easy to centrally manage and distribute the electricity of photovoltaic power stations, improving the reliability and flexibility of the system.

[0003] Existing photovoltaic power station junction boxes usually adopt a sealed structure. Common sealing methods include rubber sealing rings, sealing pads, etc., to ensure its reliability in long-term use in outdoor environments. However, existing photovoltaic power station junction boxes cannot quickly lock or unlock the junction boxes. This results in the need to maintain, inspect or replace parts of the junction boxes in the future. The staff needs to spend extra time and energy to open the junction boxes, which greatly reduces work efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a sealing protection structure for a photovoltaic power station junction box, which solves the problem that the existing photovoltaic power station junction box cannot be quickly locked or unlocked, resulting in reduced work efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sealed protective structure of a photovoltaic power station junction box, including a junction box body, the outer wall of the junction box body is provided with a sealed door, the outer wall of the sealed door is fixedly connected to a first handle, the interior of the junction box body is provided with a wiring port, the interior of the junction box body is slidably connected to a wiring board, the outer wall of the junction box body is fixedly connected to a supporting shell, the outer wall of the supporting shell is fixedly connected to a supporting block, the interior of the support block is fixedly connected to a motor, the output end of the motor is provided with a transmission component 1, the outer wall of the transmission component 1 is rotatably connected to the interior of the junction box body, the outer wall of the transmission component 1 is fixedly connected to a limiting block, the outer wall of the limiting block is slidably connected to a connecting block, the interior of the transmission component 1 is fixedly connected to a connecting rod, the outer wall of the connecting rod is slidably connected to the interior of the supporting shell, and the outer wall of the connecting rod is fixedly connected to a slider.

[0006] Preferably, the transmission assembly includes a gear, the outer wall of the gear is fixedly connected to the output end of the motor, the tooth end of the gear is meshingly connected with a tooth plate, the outer wall of the gear is rotatably connected to the inside of the wiring hub box body, the outer wall of the tooth plate is fixedly connected to the outer wall of the limit block, the outer wall of the connecting rod is fixedly connected to the inside of the tooth plate, and the outer wall of the tooth plate is slidably connected to the inside of the wiring hub box body and the supporting shell.

[0007] Preferably, the outer wall of the gear is fixedly connected with a rotating wheel 1, the outer wall of the rotating wheel 1 is provided with a transmission component 2, the interior of the transmission component 2 is fixedly connected with a rotating column 1, the outer wall of the rotating column 1 is fixedly connected with a rotating wheel 1, the outer wall of the rotating wheel 1 is provided with a transmission component 3, the interior of the transmission component 3 is fixedly connected with a rotating column 2, the outer wall of the rotating column 2 is rotatably connected to the interior of the wiring box body, the outer wall of the rotating column 2 is fixedly connected with a clamping block, and the outer wall of the clamping block is provided with a sealing plate.

[0008] Preferably, the transmission component 2 includes a transmission belt 1, the interior of the transmission belt 1 is fixedly connected to the outer wall of the rotating wheel 1, the outer wall of the transmission belt 1 is provided with a rotating wheel 2, the interior of the rotating wheel 2 is fixedly connected to the outer wall of the rotating column 1, and the transmission component 3 includes a transmission belt 2, the outer wall of the transmission belt 2 is provided on the outer wall of the rotating wheel 1, the outer wall of the transmission belt 2 is provided with a rotating wheel 2, and the outer wall of the rotating column 2 is fixedly connected to the interior of the rotating wheel 2.

[0009] Preferably, the outer wall of the sealing plate is slidably connected to the interior of the junction box body, and the outer wall of the sealing plate is fixedly connected to a second handle.

[0010] Preferably, a sliding component is provided on the outer wall of the sealing plate, the outer wall of the sliding component is arranged on the outer wall of the wiring board, and the outer wall of the sliding component is slidably connected to a damping shell.

[0011] Preferably, the sliding assembly includes a sliding column, an outer wall of the sliding column is fixedly connected to the outer wall of the sealing plate, a spring is provided on the outer wall of the sliding column, the outer wall of the sliding column is arranged on the outer wall of the wiring board, and the outer wall of the sliding column is slidably connected to the outer wall of the damping shell.

[0012] Preferably, a slide groove 1 is provided inside the line collection box body, and the sealing plate is slidably connected to the inside of the line collection box body through the slide groove 1.

[0013] Preferably, a second slide groove is provided inside the main body of the wiring hub box, and the wiring board is slidably connected to the inside of the main body of the wiring hub box through the second slide groove.

[0014] Preferably, the outer wall of the connecting block is fixedly connected to the outer wall of the sealing door, the outer wall of the connecting rod is slidably connected to the inside of the supporting shell, the outer wall of the slider is fixedly connected to the outer wall of the limit block, and the outer wall of the slider is slidably connected to the inside of the junction box body and the supporting shell.

[0015] Working principle: First, turn on the motor to drive the gear to rotate, and further drive the tooth plate to move. When the tooth plate moves, it will drive the connecting rod to move. When the connecting rod moves, it will drive the slider to move. When the tooth plate and the slider move, they will drive the limit block to slide inside the connecting block. Since the connecting block and the sealing door are fixedly connected, the sealing door can be quickly locked or unlocked, reducing the time cost required for later maintenance of the internal part of the junction box body.

[0016] When the gear rotates, it will also drive the wheel 1 to rotate, and further drive the transmission belt 1 to rotate. When the transmission belt 1 rotates, it will drive the wheel 2 to rotate. When the wheel 2 rotates, it will drive the rotating column 1 to rotate, and further drive the rotating wheel 1 to rotate. When the rotating wheel 1 rotates, it will drive the transmission belt 2 to rotate, thereby driving the rotating wheel 2 to rotate. When the rotating wheel 2 rotates, it will drive the rotating column 2 to rotate. Since the rotating column 2 and the card block are fixedly connected, the rotating column 2 will drive the card block to rotate synchronously when it rotates. Through the rotation of the card block, the sealing plate set inside the junction box body can be fixed and limited to avoid displacement of the sealing plate due to external forces, thereby reducing the sealing performance.

[0017] When installing the sealing plate, the fixed connection between the sealing plate and the sliding column will drive the sliding column to move. After moving a certain distance, the sliding column will contact the cable plate. Then the sliding column will slide on the outer wall of the damping shell and compress the spring. Through the elastic force of the spring itself, the sealing plate can be installed while the cable plate can be squeezed and fixed.

[0018] The present invention provides a sealed protection structure for a photovoltaic power station junction box, which has the following beneficial effects: 1. The present invention drives the gear to rotate by starting the motor, and further drives the tooth plate to move. The connecting rod will move synchronously under the drive of the tooth plate. When the connecting rod moves, it will drive the slider to move synchronously. Since the limit block is fixedly connected to the tooth plate and the slider, the limit block will move with the movement of the tooth plate and the slider. Through the movement of the limit block, the sealed door can be quickly locked and unlocked, which is convenient for the later maintenance personnel to perform maintenance and repair operations on the junction box body, thereby improving work efficiency.

[0019] 2. In the present invention, when the gear rotates, it will drive the rotating wheel 1 to rotate, and further drive the transmission belt 1 to rotate. The rotating wheel 2 will rotate under the drive of the transmission belt 1. When the rotating wheel 2 rotates, it will drive the rotating column 1 to rotate, and then drive the rotating wheel 1 to rotate. When the rotating wheel 1 rotates, it will drive the transmission belt 2 to rotate, and further drive the rotating wheel 2 to rotate. The rotating column 2 will rotate under the drive of the rotating wheel 2, and further drive the block to rotate. Through the rotation of the block, the sealing plate can be fixed to avoid displacement of the sealing plate due to external force, which leads to reduced sealing performance.

[0020] 3. The present invention will drive the sliding column to move while installing the sealing plate. When the sliding column moves to a suitable position, it will contact the wiring board and slide on the outer wall of the damping shell. When the sliding column slides, the spring will be compressed. At this time, the spring's own elastic force will be used to squeeze and limit the wiring board, thereby preventing the wiring board from shaking inside the wiring hub box body due to external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the wiring port of the present invention; Figure 3 It is a schematic diagram of the partial structure of the sealing door of the present invention; Figure 4 It is a schematic diagram of the local structure of the sealing plate of the present invention; Figure 5 It is a schematic diagram of the local structure of the card block of the present invention; Figure 6 It is a schematic diagram of the local structure of the wiring board of the present invention; Figure 7 It is a schematic diagram of the local structure of the tooth plate of the present invention; Figure 8 It is a partial structural schematic diagram of a chute of the present invention; Figure 9 It is a schematic diagram of the local structure of the spring of the present invention.

[0022] Among them, 1. the main body of the junction box; 2. the sealing door; 3. the first handle; 4. the wiring port; 5. the wiring board; 6. the supporting shell; 7. the supporting block; 8. the motor; 9. the transmission component one; 901. the gear; 902. the tooth plate; 10. the limit block; 11. the connecting block; 12. the connecting rod; 13. the slider; 14. the rotating wheel one; 15. the transmission component two; 151. the transmission belt one; 152. the rotating wheel two; 16. the rotating column one; 17. the rotating wheel one; 18. the transmission component three; 181. the transmission belt two; 182. the rotating wheel two; 19. the rotating column two; 20. the block; 21. the sealing plate; 22. the second handle; 23. the sliding component; 231. the sliding column; 232. the spring; 24. the damping shell; 25. the slide groove one; 26. the slide groove two. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0024] Please see attached Figure 1 -Attached Figure 7 The embodiment of the present invention provides a sealed protection structure of a photovoltaic power station junction box, including a junction box body 1, a sealed door 2 is provided on the outer wall of the junction box body 1, a first handle 3 is fixedly connected to the outer wall of the sealed door 2, a wiring port 4 is provided inside the junction box body 1, a wiring board 5 is slidably connected inside the junction box body 1, a support shell 6 is fixedly connected to the outer wall of the support shell 6, a support block 7 is fixedly connected to the inner part of the support block 7, a motor 8 is fixedly connected to the inner part of the support block 7, a transmission component 9 is provided at the output end of the motor 8, the outer wall of the transmission component 9 is rotatably connected to the inner part of the junction box body 1, the outer wall of the transmission component 9 is fixedly connected to the limit block 10, and the limit block 10 The outer wall of the transmission component 9 is slidably connected with a connecting block 11, the interior of the transmission component 9 is fixedly connected with a connecting rod 12, the outer wall of the connecting rod 12 is slidably connected to the interior of the supporting shell 6, and the outer wall of the connecting rod 12 is fixedly connected to a slider 13; the transmission component 9 includes a gear 901, the outer wall of the gear 901 is fixedly connected to the output end of the motor 8, the tooth end of the gear 901 is meshingly connected with a tooth plate 902, the outer wall of the gear 901 is rotatably connected to the interior of the collection box body 1, the outer wall of the tooth plate 902 is fixedly connected to the outer wall of the limit block 10, the outer wall of the connecting rod 12 is fixedly connected to the interior of the tooth plate 902, and the outer wall of the tooth plate 902 is slidably connected to the interior of the collection box body 1 and the supporting shell 6; Specifically, first start the motor 8, and the output end of the motor 8 and the fixing effect of the gear 901 will drive the gear 901 to rotate. When the gear 901 rotates, it will drive the tooth plate 902 to move up and down. When the tooth plate 902 moves up and down, the tooth plate 902 and the limit block 10 are fixed, which will drive the limit block 10 to slide on the inner wall of the connecting block 11. Since the connecting block 11 and the sealing door 2 are fixedly connected, the sealing door 2 can be quickly opened and closed, which is convenient for the later maintenance and inspection personnel to repair and maintain the junction box body 1.

[0025] Please see attached Figure 4 -Attached Figure 7 The outer wall of the gear 901 is fixedly connected to a rotating wheel 14, the outer wall of the rotating wheel 14 is provided with a transmission component 2 15, the interior of the transmission component 2 15 is fixedly connected to a rotating column 16, the outer wall of the rotating column 16 is fixedly connected to a rotating wheel 17, the outer wall of the rotating wheel 17 is provided with a transmission component 3 18, the interior of the transmission component 3 18 is fixedly connected to a rotating column 2 19, the outer wall of the rotating column 2 19 is rotatably connected to the interior of the collection box body 1, the outer wall of the rotating column 2 19 is fixedly connected to a block 20, and the outer wall of the block 20 is provided with Sealing plate 21; transmission component 2 15 includes transmission belt 1 151, the interior of transmission belt 1 151 is fixedly connected to the outer wall of rotating wheel 1 14, the outer wall of transmission belt 1 151 is provided with rotating wheel 2 152, the interior of rotating wheel 2 152 is fixedly connected to the outer wall of rotating column 1 16, transmission component 3 18 includes transmission belt 2 181, the outer wall of transmission belt 2 181 is provided with rotating wheel 2 182, the outer wall of rotating column 2 19 is fixedly connected to the interior of rotating wheel 2 182; Specifically, when the gear 901 rotates, the fixing action of the gear 901 and the rotating wheel 14 will drive the rotating wheel 14 to rotate, and when the rotating wheel 14 rotates, the transmission component 2 15 will be driven to rotate, and when the transmission component 2 15 rotates, the fixing action of the transmission component 2 15 and the rotating column 16 will drive the rotating column 16 to rotate, and further drive the rotating wheel 17 to rotate, and when the rotating wheel 17 rotates, it will drive the transmission belt 2 181 to rotate, and then drive the rotating wheel 2 182 to rotate, and when the rotating wheel 2 182 rotates, the fixing action of the rotating wheel 2 182 and the rotating column 2 19 will drive the rotating column 2 19 to rotate inside the junction box body 1, and further drive the block 20 to rotate, and through the rotation of the block 20, the sealing plate 21 is fixed to avoid displacement of the sealing plate 21 due to external forces, thereby causing side leakage, thereby achieving the effect of improving the sealing efficiency.

[0026] Please see attached Figure 5 -Attached Figure 9The outer wall of the sealing plate 21 is slidably connected to the inside of the wiring box body 1, and the outer wall of the sealing plate 21 is fixedly connected to the second handle 22; the outer wall of the sealing plate 21 is provided with a sliding component 23, the outer wall of the sliding component 23 is arranged on the outer wall of the wiring board 5, and the outer wall of the sliding component 23 is slidably connected to the damping shell 24; the sliding component 23 includes a sliding column 231, the outer wall of the sliding column 231 is fixedly connected to the outer wall of the sealing plate 21, the outer wall of the sliding column 231 is provided with a spring 232, the outer wall of the sliding column 231 is arranged on the outer wall of the wiring board 5, and the outer wall of the sliding column 231 is slidably connected to the outer wall of the damping shell 24; Specifically, when the sealing plate 21 is installed, the fixing effect of the sealing plate 21 and the sliding column 231 will drive the sliding column 231 to move. After the sealing plate 21 continues to slide for a distance inside the wiring hub box body 1, the sliding column 231 will contact the wiring board 5. At this time, the sliding column 231 will slide on the outer wall of the damping shell 24 and compress the spring 232. Through the elastic force of the spring 232 itself, the sealing plate 21 can be installed while the wiring board 5 can be squeezed and fixed. The second handle 22 is used to facilitate the operator to remove the sealing plate 21 from the inside of the wiring hub box body 1.

[0027] Please see attached Figure 4 -Attached Figure 8 A slide groove 25 is provided inside the wiring collection box body 1, and the sealing plate 21 is slidably connected to the inside of the wiring collection box body 1 through the slide groove 25; a slide groove 26 is provided inside the wiring collection box body 1, and the cable plate 5 is slidably connected to the inside of the wiring collection box body 1 through the slide groove 26; Specifically, the slide groove 1 25 is used to limit the sliding trajectory of the sealing plate 21, and the slide groove 26 is used to limit the sliding trajectory of the cable tray 5. Through the mutual cooperation between the slide groove 1 25 and the slide groove 2 26, the stability of the sealing plate 21 and the cable tray 5 during sliding is improved.

[0028] Please see attached Figure 4 -Attached Figure 8 The outer wall of the connecting block 11 is fixedly connected to the outer wall of the sealing door 2, the outer wall of the connecting rod 12 is slidably connected to the inside of the supporting shell 6, the outer wall of the slider 13 is fixedly connected to the outer wall of the limit block 10, and the outer wall of the slider 13 is slidably connected to the inside of the junction box body 1 and the supporting shell 6; Specifically, the sealing door 2 is used to support the connecting block 11, and the supporting shell 6 is used to support the connecting rod 12 for rotation, thereby achieving the effect of improving the stability of the connecting rod 12 when rotating.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Photovoltaic power station junction box sealing and protection structure, including a junction box body (1), characterized in that: The outer wall of the junction box body (1) is provided with a sealing door (2), the outer wall of the sealing door (2) is fixedly connected to a first handle (3), the interior of the junction box body (1) is provided with a wiring port (4), the interior of the junction box body (1) is slidably connected to a wiring board (5), the outer wall of the junction box body (1) is fixedly connected to a supporting shell (6), the outer wall of the supporting shell (6) is fixedly connected to a supporting block (7), the interior of the supporting block (7) is fixedly connected to a motor (8), the output end of the motor (8) is provided with a transmission component 1 (9), the outer wall of the transmission component 1 (9) is rotatably connected to the interior of the junction box body (1), the outer wall of the transmission component 1 (9) is fixedly connected to a limiting block (10), the outer wall of the limiting block (10) is slidably connected to a connecting block (11), the interior of the transmission component 1 (9) is fixedly connected to a connecting rod (12), the outer wall of the connecting rod (12) is slidably connected to the interior of the supporting shell (6), and the outer wall of the connecting rod (12) is fixedly connected to a slider (13).

2. The photovoltaic power station junction box sealing and protection structure according to claim 1, characterized in that: The transmission component 1 (9) includes a gear (901), the outer wall of the gear (901) is fixedly connected to the output end of the motor (8), the tooth end of the gear (901) is meshingly connected to a tooth plate (902), the outer wall of the gear (901) is rotatably connected to the inside of the collection box body (1), the outer wall of the tooth plate (902) is fixedly connected to the outer wall of the limit block (10), the outer wall of the connecting rod (12) is fixedly connected to the inside of the tooth plate (902), and the outer wall of the tooth plate (902) is slidably connected to the inside of the collection box body (1) and the support shell (6).

3. The photovoltaic power station junction box sealing and protection structure according to claim 2, characterized in that: The outer wall of the gear (901) is fixedly connected to a rotating wheel 1 (14), the outer wall of the rotating wheel 1 (14) is provided with a transmission component 2 (15), the interior of the transmission component 2 (15) is fixedly connected to a rotating column 1 (16), the outer wall of the rotating column 1 (16) is fixedly connected to a rotating wheel 1 (17), the outer wall of the rotating wheel 1 (17) is provided with a transmission component 3 (18), the interior of the transmission component 3 (18) is fixedly connected to a rotating column 2 (19), the outer wall of the rotating column 2 (19) is rotatably connected to the interior of the junction box body (1), the outer wall of the rotating column 2 (19) is fixedly connected to a clamping block (20), and the outer wall of the clamping block (20) is provided with a sealing plate (21).

4. The photovoltaic power station junction box sealing and protection structure according to claim 3, characterized in that: The transmission component 2 (15) comprises a transmission belt 1 (151), the interior of the transmission belt 1 (151) is fixedly connected to the outer wall of the rotating wheel 1 (14), the outer wall of the transmission belt 1 (151) is provided with a rotating wheel 2 (152), the interior of the rotating wheel 2 (152) is fixedly connected to the outer wall of the rotating column 1 (16), the transmission component 3 (18) comprises a transmission belt 2 (181), the outer wall of the transmission belt 2 (181) is provided with a rotating wheel 2 (182), and the outer wall of the rotating column 2 (19) is fixedly connected to the interior of the rotating wheel 2 (182).

5. The photovoltaic power station junction box sealing and protection structure according to claim 3, characterized in that: The outer wall of the sealing plate (21) is slidably connected to the inside of the wire collecting box body (1), and a second handle (22) is fixedly connected to the outer wall of the sealing plate (21).

6. The photovoltaic power station junction box sealing and protection structure according to claim 5, characterized in that: A sliding assembly (23) is arranged on the outer wall of the sealing plate (21), the outer wall of the sliding assembly (23) is arranged on the outer wall of the wire arranging plate (5), and a damping outer shell (24) is slidably connected to the outer wall of the sliding assembly (23).

7. The photovoltaic power station junction box sealing and protection structure according to claim 6, characterized in that: The sliding assembly (23) includes a sliding column (231), the outer wall of the sliding column (231) is fixedly connected to the outer wall of the sealing plate (21), a spring (232) is arranged on the outer wall of the sliding column (231), the outer wall of the sliding column (231) is arranged on the outer wall of the wire arranging plate (5), and the outer wall of the sliding column (231) is slidably connected to the outer wall of the damping outer shell (24).

8. The photovoltaic power station junction box sealing and protection structure according to claim 3, characterized in that: A first chute (25) is opened inside the wire collecting box body (1), and the sealing plate (21) is slidably connected to the inside of the wire collecting box body (1) through the first chute (25).

9. The photovoltaic power station junction box sealing and protection structure according to claim 1, wherein: A second chute (26) is opened inside the wire collecting box body (1), and the wire arranging plate (5) is slidably connected to the inside of the wire collecting box body (1) through the second chute (26).

10. The photovoltaic power station junction box sealing and protection structure according to claim 1, wherein: The outer wall of the connecting block (11) is fixedly connected to the outer wall of the sealing door (2), the outer wall of the connecting rod (12) is slidably connected to the inside of the support outer shell (6), the outer wall of the slider (13) is fixedly connected to the outer wall of the limiting block (10), and the outer wall of the slider (13) is slidably connected to the inside of the wire collecting box body (1) and the support outer shell (6).

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