Conflux box for photovoltaic power station

Abstract

The invention discloses a combiner box for a photovoltaic power station, and relates to the technical field of combiner boxes, and the combiner box specifically comprises a combiner box body, the upper end of the right side of the combiner box body is in bolted connection with a first filter plate, and the right side of the combiner box body is fixedly provided with a ventilation pipe located on the right side of the first filter plate. A first activated carbon plate located on the right side of the first filter plate is movably clamped to the inner wall of the ventilation pipe, and a quick release assembly used for being connected with the ventilation pipe is arranged at the front end of the first activated carbon plate. According to the invention, through cooperation of the combiner box body, the first filter plate, the first activated carbon plate, the second filter plate and the second activated carbon plate, the first activated carbon plate and the second activated carbon plate are arranged, so that damp air entering the combiner box body is adsorbed; the first active carbon plate and the second active carbon plate are adopted to block humid air, so that damage to electronic components caused by the humid air entering the combiner box body is reduced, and the service life of the electronic components is prolonged.

Description

Technical Field

[0001] This invention relates to the field of combiner boxes, specifically a combiner box for a photovoltaic power station. Background Technology

[0002] Each photovoltaic element that generates solar power produces a tiny voltage and current. Multiple elements must be connected together to achieve the rated voltage and current. The best wiring method for a photovoltaic panel composed of several photovoltaic elements is to place a combiner box that collects the generated DC power at the bottom edge of the photovoltaic panel. The combiner box contains a large number of wires and wiring components made of plastic.

[0003] However, to prevent damage to the components from the high temperatures generated by the electronic components inside the combiner box after prolonged use, a through-hole for heat dissipation is provided on one side of the combiner box. This through-hole design not only facilitates the flow of air inside and outside the combiner box, but also allows humid air to enter the combiner box through the through-hole during use, which can damage the electronic components and shorten their lifespan. Summary of the Invention

[0004] This application proposes a combiner box for photovoltaic power plants, which has the following advantages: reduces the amount of humid air entering the combiner box, reduces the damage caused by humid air to the electronic components inside the combiner box, ensures the normal use of the combiner box, and solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a combiner box for a photovoltaic power station, comprising a combiner box body, a first filter plate bolted to the upper right side of the combiner box body, a ventilation pipe fixedly installed on the right side of the combiner box body located to the right of the first filter plate, a first activated carbon plate movably snapped onto the inner wall of the ventilation pipe located to the right of the first filter plate, a quick-release assembly for connecting the ventilation pipe being provided at the front end of the first activated carbon plate, a second filter plate bolted to the lower left side of the combiner box body, an air-cooling assembly located to the left of the second filter plate being provided on the left side of the combiner box body, a protective shell being installed on the outer wall of the air-cooling assembly, and the right side of the protective shell being bolted to the left side of the combiner box body, the front and back of the protective shell being movably connected to the second activated carbon plate via Velcro, and a temperature sensor located below the first filter plate being fixedly installed on the right side of the inner wall of the combiner box body.

[0006] Preferably, the front of the junction box body is hinged with a box cover, the upper end of the junction box body is bolted with a top plate, several mounting plates are fixedly installed on the left and right sides of the back of the junction box body, and fastening bolts are threadedly connected to the inner wall of the mounting plate at the end away from the junction box body. An operation panel located below the ventilation pipe is fixedly installed on the right side of the junction box body, and the operation panel is electrically connected to the temperature sensor.

[0007] Preferably, the upper and lower sides of the inner wall of the ventilation duct are provided with limiting grooves located outside the first activated carbon plate, and the front of the ventilation duct is fixedly installed with locking blocks located on the left and right sides of the first activated carbon plate. The inner wall of the locking block is fixedly installed with a patch, and the inner side of the patch is magnetically connected to the quick-release assembly.

[0008] Preferably, limiting blocks are fixedly installed at the upper and lower ends of the first activated carbon plate, and the outer wall of the limiting block away from the first activated carbon plate is movably engaged with the inner wall of the limiting groove. Fixing rods for installing quick-release components are fixedly installed on the upper and lower sides of the front of the first activated carbon plate, and a first disc is fixedly installed in the middle of the front of the fixing rod, and the left and right sides of the first disc are magnetically connected to the inner sides of the quick-release components on the left and right sides respectively.

[0009] Preferably, the quick-release assembly includes a spring and a plug rod. The inner end of the spring is fixedly connected to the inner wall of the groove, and the end of the spring away from the groove is fixedly connected to the inner side of the plug rod. The outer side of the plug rod is magnetically connected to the patch. The front of the fixing rod has through holes located on the left and right sides of the first disc.

[0010] Preferably, a pull rod is fixedly installed on the front of the insertion rod, and the outer wall of the pull rod is movably sleeved with the inner wall of the through hole. A second disk located in front of the through hole is fixedly installed at the end of the pull rod away from the insertion rod, and the inner side of the second disk is magnetically connected to the outer side of the first disk. An anti-slip pad is fixedly installed on the outer side of the second disk.

[0011] Preferably, the air-cooling assembly includes fan blades, an annular block, and a rotating shaft. The outer wall of the rotating shaft is fixedly sleeved with the inner wall of the annular block, and a plurality of fan blades are evenly distributed on the outer wall of the annular block.

[0012] Preferably, a drive motor is fixedly installed on the left end of the rotating shaft, a cover is fixedly sleeved on the outer wall of the drive motor, and extension rods are fixedly installed on the upper and lower sides of the cover, with the end of the extension rod away from the cover being fixedly connected to the inner wall of the protective shell.

[0013] Preferably, the protective shell has several heat dissipation holes on its left and right sides respectively, and a side plate located on the left side of the junction box body is fixedly sleeved on the outer wall of the right side of the protective shell, and the side plate is connected to the junction box body by bolts.

[0014] Preferably, each of the heat dissipation holes is configured as an inclined hole with the inner side higher than the outer side.

[0015] The present invention has the following beneficial effects:

[0016] 1. This invention, through the cooperation between the junction box body, the first filter plate, the first activated carbon plate, the second filter plate, and the second activated carbon plate, utilizes the arrangement of the first and second activated carbon plates to achieve the adsorption of humid air entering the junction box body. By using the first and second activated carbon plates to block humid air, the damage caused by humid air entering the junction box body to electronic components is reduced, thereby extending the service life of electronic components.

[0017] 2. This invention achieves the connection between the first activated carbon plate and the ventilation pipe by coordinating the main body of the manifold, the first activated carbon plate, the ventilation pipe, the first filter plate, and the quick-release assembly. By changing the connection method between the quick-release assembly and the ventilation pipe, the disassembly and assembly steps between the first activated carbon plate and the ventilation pipe are simplified, and the first activated carbon plate can be replaced in a timely manner, thereby maintaining the adsorption effect of the first activated carbon plate on humid air.

[0018] 3. The present invention utilizes the cooperation between the junction box body, the second activated carbon plate, the heat dissipation holes, the protective shell, the second filter plate, and the air-cooling component. The second activated carbon plate and the protective shell are magnetically connected. By changing the connection method between the protective shell and the second activated carbon plate, it is not only convenient to install the second activated carbon plate on the outside of the protective shell so that the second activated carbon plate covers the heat dissipation holes, but also convenient to remove the second activated carbon plate from the heat dissipation holes, thereby maintaining the adsorption effect of the second activated carbon plate on humid air. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 Rear view diagram;

[0021] Figure 3 For the present invention Figure 1 The front view;

[0022] Figure 4 For the present invention Figure 1 The diagram on the right;

[0023] Figure 5 For the present invention Figure 1 The diagram on the left;

[0024] Figure 6 This is a schematic diagram of the internal structure of the junction box body in the structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the first filter plate in the structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the air-cooling component in the structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the first activated carbon plate in the structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the ventilation duct in the structure of the present invention;

[0029] Figure 11 In the structure of this invention Figure 10 An enlarged schematic diagram of point A.

[0030] In the diagram: 1. Combiner box body; 2. First filter plate; 3. Ventilation duct; 4. First activated carbon plate; 5. Quick-release assembly; 501. Spring; 502. Insert rod; 6. Second filter plate; 7. Air-cooled assembly; 701. Fan blade; 702. Annular block; 703. Rotating shaft; 8. Protective shell; 9. Second activated carbon plate; 10. Temperature sensor; 11. Box cover; 12. Top plate; 13. Mounting plate; 14. Fastening bolt; 15. Operation panel; 16. Limiting groove; 17. Locking block; 18. Patch; 19. Fixing rod; 20. First disc; 21. Groove; 22. Through hole; 23. Pull rod; 24. Second disc; 25. Anti-slip pad; 26. Drive motor; 27. Cover; 28. Extension rod; 29. ​​Heat dissipation hole; 30. Side plate; 31. Limiting block. Detailed Implementation

[0031] The technical solution of the present invention will be clearly and completely described below with reference to preferred embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figure 1 , Figure 6 , Figure 7A combiner box for a photovoltaic power station includes a combiner box body 1. A first filter plate 2 is bolted to the upper right side of the combiner box body 1. A ventilation pipe 3 is fixedly installed on the right side of the combiner box body 1, located to the right of the first filter plate 2. A first activated carbon plate 4 is movably engaged with the inner wall of the ventilation pipe 3, located to the right of the first filter plate 2. When humid air enters the interior of the combiner box body 1 through the ventilation pipe 3, the humid air entering the ventilation pipe 3 will first come into contact with the first activated carbon plate 4. The first activated carbon plate 4 is designed to adsorb the humid air in the ventilation pipe 3. After the moisture is adsorbed by the first activated carbon plate 4, the air enters the interior of the combiner box body 1 through the first filter plate 2. A quick-release assembly 5 for connecting the ventilation pipe 3 is provided at the front end of the first activated carbon plate 4. A second filter plate 6 is bolted to the lower left side of the combiner box body 1. A first activated carbon plate 6 is provided on the left side of the combiner box body 1, located to the right of the first filter plate 2. The air-cooling assembly 7 is located on the left side of the second filter plate 6. A protective shell 8 is installed on the outer wall of the air-cooling assembly 7, and the right side of the protective shell 8 is connected to the left side of the junction box body 1 by bolts. The front and back of the protective shell 8 are movably connected to the second activated carbon plate 9 by Velcro. By using the first activated carbon plate 4 and the second activated carbon plate 9, the humid air entering the junction box body 1 is adsorbed. The method of blocking humid air by the first activated carbon plate 4 and the second activated carbon plate 9 reduces the damage to electronic components caused by humid air entering the junction box body 1, thereby extending the service life of electronic components. Since the second activated carbon plate 9 is connected to the protective shell 8 by Velcro, the second activated carbon plate 9 can be removed from the protective shell 8 for replacement. A temperature sensor 10 located below the first filter plate 2 is fixedly installed on the right side of the inner wall of the junction box body 1.

[0033] The front of the junction box body 1 is hinged with a cover 11. The top of the junction box body 1 is bolted to a top plate 12. Several mounting plates 13 are fixedly installed on the left and right sides of the back of the junction box body 1. Fastening bolts 14 are threaded onto the inner wall of the mounting plate 13 at the end away from the junction box body 1. An operation panel 15 located below the ventilation pipe 3 is fixedly installed on the right side of the junction box body 1. The operation panel 15 is electrically connected to the temperature sensor 10. The temperature sensor 10 detects the internal temperature of the junction box body 1. Since the temperature sensor 10 is electrically connected to the operation panel 15, the monitoring value of the temperature sensor 10 inside the junction box body 1 is displayed on the operation panel 15.

[0034] like Figure 2 , Figure 9 , Figure 11 The upper and lower sides of the inner wall of the ventilation pipe 3 are provided with limiting grooves 16 located outside the first activated carbon plate 4. The front of the ventilation pipe 3 is fixedly installed with locking blocks 17 located on the left and right sides of the first activated carbon plate 4. The inner wall of the locking block 17 is fixedly installed with a patch 18, and the inner side of the patch 18 is magnetically connected to the quick-release assembly 5.

[0035] Limiting blocks 31 are fixedly installed at the upper and lower ends of the first activated carbon plate 4, and the outer wall of the end of the limiting block 31 away from the first activated carbon plate 4 is movably engaged with the inner wall of the limiting groove 16. Fixing rods 19 for installing quick-release components 5 are fixedly installed on the upper and lower sides of the front of the first activated carbon plate 4, and a first disc 20 is fixedly installed in the middle of the front of the fixing rod 19. The left and right sides of the first disc 20 are magnetically connected to the inner sides of the quick-release components 5 on the left and right sides, respectively.

[0036] The quick-release assembly 5 includes a spring 501 and a plug rod 502. By using the quick-release assembly 5, the connection between the first activated carbon plate 4 and the ventilation pipe 3 is realized. By changing the connection method between the quick-release assembly 5 and the ventilation pipe 3, the disassembly and assembly steps between the first activated carbon plate 4 and the ventilation pipe 3 are simplified, and the first activated carbon plate 4 can be replaced in a timely manner, thereby maintaining the adsorption effect of the first activated carbon plate 4 on humid air. The inner end of the spring 501 is fixedly connected to the inner wall of the groove 21, and the end of the spring 501 away from the groove 21 is fixedly connected to the inner side of the plug rod 502. The outer side of the plug rod 502 is magnetically connected to the patch 18. The front of the fixing rod 19 has through holes 22 located on the left and right sides of the first disc 20.

[0037] A pull rod 23 is fixedly installed on the front of the insertion rod 502, and the outer wall of the pull rod 23 is movably sleeved with the inner wall of the through hole 22. A second disc 24 located in front of the through hole 22 is fixedly installed at the end of the pull rod 23 away from the insertion rod 502, and the inner side of the second disc 24 is magnetically connected to the outer side of the first disc 20. Pulling the second disc 24 will drive the insertion rod 502 to move into the groove 21 through the connection of the pull rod 23. While the insertion rod 502 moves into the groove 21, the spring 501 is compressed until the inner side of the second disc 24 is connected to the groove 21. The first disc 20 is magnetically attracted, at which point the insert rod 502 separates from the patch 18, allowing the first activated carbon plate 4 to be removed from the inside of the ventilation pipe 3 for replacement. When the new first activated carbon plate 4 is installed, after separating the first disc 20 and the second disc 24, the spring 501 is used to push the insert rod 502 out of the groove 21 into the inside of the locking block 17, so that the outer end of the insert rod 502 is magnetically attracted to the patch 18, thus enabling the first activated carbon plate 4 to be installed inside the ventilation pipe 3. An anti-slip pad 25 is fixedly installed on the outer side of the second disc 24.

[0038] like Figure 3 , Figure 8 , Figure 10 The air-cooled assembly 7 includes fan blades 701, annular block 702 and rotating shaft 703. The annular block 702 is provided to connect the fan blades 701 and the rotating shaft 703. The outer wall of the rotating shaft 703 is fixedly sleeved with the inner wall of the annular block 702. Several fan blades 701 are evenly distributed on the outer wall of the annular block 702.

[0039] A drive motor 26 is fixedly installed on the left end of the rotating shaft 703. The drive motor 26 is switched on and off by the control keys on the operation panel 15. After the drive motor 26 is turned on, it drives the fan blade 701 to rotate through the connection between the rotating shaft 703 and the annular block 702. The rotation of the fan blade 701 accelerates the flow of air inside and outside the junction box body 1. The outer wall of the drive motor 26 is fixedly fitted with a cover 27. Extension rods 28 are fixedly installed on the upper and lower sides of the cover 27, and the end of the extension rod 28 away from the cover 27 is fixedly connected to the inner wall of the protective shell 8.

[0040] like Figure 4 , Figure 5 , Figure 8 The protective shell 8 has several heat dissipation holes 29 on its left and right sides respectively. Air is discharged from the second filter plate 6 and the heat dissipation holes 29 to the outside of the junction box body 1. Furthermore, a second activated carbon plate 9 is detachably installed at the heat dissipation holes 29. At this time, the second activated carbon plate 9 is set to adsorb the moisture in the humid air entering the junction box body 1 from the heat dissipation holes 29. The outer wall of the right side of the protective shell 8 is fixedly sleeved with a side plate 30 located on the left side of the junction box body 1, and the side plate 30 is connected to the junction box body 1 by bolts.

[0041] Each heat dissipation hole 29 is designed as an inclined hole with the inner side higher than the outer side.

[0042] Working principle: In use, firstly, the temperature sensor 10 detects the internal temperature of the combiner box body 1. Since the temperature sensor 10 is electrically connected to the operation panel 15, the monitored value of the combiner box body 1 is displayed on the operation panel 15. The control keys on the operation panel 15 control the on / off state of the drive motor 26. Then, when the temperature inside the combiner box body 1 exceeds the set temperature, the drive motor 26 turns on and drives the fan blades 701 to rotate through the connection of the rotating shaft 703 and the annular block 702. The rotation of blade 701 accelerates the airflow inside and outside the manifold body 1. When humid air enters the manifold body 1 through the ventilation duct 3, it first comes into contact with the first activated carbon plate 4. The first activated carbon plate 4 adsorbs the humid air inside the ventilation duct 3. After the moisture is adsorbed by the first activated carbon plate 4, the air enters the manifold body 1 through the first filter plate 2, and then exits to the outside of the manifold body 1 through the second filter plate 6 and the heat dissipation hole 29. The heat dissipation hole 29 is detachable. The second activated carbon plate 9 is installed. The second activated carbon plate 9 is designed to absorb moisture from the humid air entering the junction box body 1 through the heat dissipation hole 29. Finally, the second activated carbon plate 9 and the first activated carbon plate 4 are replaced periodically. Pulling the second disc 24, connected by the pull rod 23, moves the insertion rod 502 into the groove 21. As the insertion rod 502 moves into the groove 21, the spring 501 is compressed until the inner side of the second disc 24 is magnetically attracted to the first disc 20. At this point, the insertion rod 502 separates from the patch 18, allowing the... After the first activated carbon plate 4 is removed from the inside of the ventilation pipe 3 and replaced, when the new first activated carbon plate 4 is installed, after separating the first disc 20 and the second disc 24, the spring 501 is used to push the insertion rod 502 out of the groove 21 into the inside of the locking block 17, so that the outer end of the insertion rod 502 is magnetically attracted to the patch 18, thus realizing the installation of the first activated carbon plate 4 inside the ventilation pipe 3. Furthermore, since the second activated carbon plate 9 and the protective shell 8 are connected by Velcro, the second activated carbon plate 9 can be removed from the protective shell 8 to achieve replacement.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention. The invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combiner box for a photovoltaic power station, comprising a combiner box body (1), characterized in that: The upper right side of the junction box body (1) is bolted to a first filter plate (2). A ventilation pipe (3) located to the right of the first filter plate (2) is fixedly installed on the right side of the junction box body (1). A first activated carbon plate (4) located to the right of the first filter plate (2) is movably attached to the inner wall of the ventilation pipe (3). A quick-release assembly (5) for connecting the ventilation pipe (3) is provided at the front end of the first activated carbon plate (4). A second filter plate (6) is bolted to the lower left side of the junction box body (1). A wind-cooling assembly (7) located to the left of the second filter plate (6) is provided on the left side of the junction box body (1). A protective shell (8) is installed on the outer wall of the wind-cooling assembly (7). The right side of the protective shell (8) is bolted to the left side of the junction box body (1). A second activated carbon plate (9) is movably connected to the front and back of the protective shell (8) via Velcro. A temperature sensor (10) located below the first filter plate (2) is fixedly installed on the right side of the inner wall of the junction box body (1).

2. The combiner box for a photovoltaic power station according to claim 1, characterized in that: The front of the junction box body (1) is hinged with a box cover (11). The top end of the junction box body (1) is bolted to a top plate (12). Several mounting plates (13) are fixedly installed on the left and right sides of the back of the junction box body (1). Fastening bolts (14) are threaded onto the inner wall of the mounting plate (13) away from the junction box body (1). An operation panel (15) located below the ventilation pipe (3) is fixedly installed on the right side of the junction box body (1), and the operation panel (15) is electrically connected to the temperature sensor (10).

3. A combiner box for a photovoltaic power station according to claim 2, characterized in that: The upper and lower sides of the inner wall of the ventilation pipe (3) are provided with limiting grooves (16) located outside the first activated carbon plate (4). The front of the ventilation pipe (3) is fixedly installed with locking blocks (17) located on the left and right sides of the first activated carbon plate (4). The inner wall of the locking block (17) is fixedly installed with a patch (18), and the inner side of the patch (18) is magnetically connected to the quick-release assembly (5).

4. A combiner box for a photovoltaic power station according to claim 3, characterized in that: Limiting blocks (31) are fixedly installed at the upper and lower ends of the first activated carbon plate (4), and the outer wall of the limiting block (31) away from the first activated carbon plate (4) is movably engaged with the inner wall of the limiting groove (16). Fixing rods (19) for installing quick-release components (5) are fixedly installed on the upper and lower sides of the front of the first activated carbon plate (4), and a first disc (20) is fixedly installed in the middle of the front of the fixing rod (19), and the left and right sides of the first disc (20) are magnetically connected to the inner sides of the quick-release components (5) on the left and right sides respectively.

5. A combiner box for a photovoltaic power station according to claim 4, characterized in that: The quick-release assembly (5) includes a spring (501) and a plug (502). The inner end of the spring (501) is fixedly connected to the inner wall of the groove (21). The end of the spring (501) away from the groove (21) is fixedly connected to the inner side of the plug (502). The outer side of the plug (502) is magnetically connected to the patch (18). The front of the fixing rod (19) is provided with through holes (22) located on the left and right sides of the first disc (20).

6. A combiner box for a photovoltaic power station according to claim 5, characterized in that: A pull rod (23) is fixedly installed on the front of the insertion rod (502), and the outer wall of the pull rod (23) is movably sleeved with the inner wall of the through hole (22). A second disc (24) located in front of the through hole (22) is fixedly installed at the end of the pull rod (23) away from the insertion rod (502), and the inner side of the second disc (24) is magnetically connected to the outer side of the first disc (20). An anti-slip pad (25) is fixedly installed on the outer side of the second disc (24).

7. A combiner box for a photovoltaic power station according to claim 1, characterized in that: The air-cooled assembly (7) includes fan blades (701), an annular block (702) and a rotating shaft (703). The outer wall of the rotating shaft (703) is fixedly sleeved with the inner wall of the annular block (702). A number of fan blades (701) are evenly distributed on the outer wall of the annular block (702).

8. A combiner box for a photovoltaic power station according to claim 7, characterized in that: A drive motor (26) is fixedly installed on the left end of the rotating shaft (703). A cover (27) is fixedly sleeved on the outer wall of the drive motor (26). Extension rods (28) are fixedly installed on the upper and lower sides of the cover (27), and the end of the extension rod (28) away from the cover (27) is fixedly connected to the inner wall of the protective shell (8).

9. A combiner box for a photovoltaic power station according to claim 8, characterized in that: The protective shell (8) has several heat dissipation holes (29) on its left and right sides respectively. The outer wall of the right side of the protective shell (8) is fixedly fitted with a side plate (30) located on the left side of the junction box body (1), and the side plate (30) is connected to the junction box body (1) by bolts.

10. A combiner box for a photovoltaic power station according to claim 9, characterized in that: Each of the heat dissipation holes (29) is configured as an inclined hole with the inner side higher than the outer side.

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