Photovoltaic junction box diode characteristic detection device

Abstract

The invention discloses a photovoltaic junction box diode characteristic detection device, and relates to the technical field of photovoltaic junction box detection, the photovoltaic junction box diode characteristic detection device comprises a base, the top of the base is fixedly connected with a connecting seat, and the top of the connecting seat is fixedly connected with a fixed seat. According to the photovoltaic junction box detection device, an internal threaded pipe, electromagnetic valves and a connecting end are arranged, a suction cup is taken according to the model of a photovoltaic junction box to be detected, then the bottom end of a second threaded pipe is screwed into the internal threaded pipe, the bottom end of a sealing plug is inserted into the connecting end, and then the corresponding electromagnetic valve is opened; and then one end of a pump machine pumps out gas in the fixed seat, so that suction force is generated in an electromagnetic valve, an inner threaded pipe, a connecting end, a second threaded pipe, a sealing plug and a suction cup, the photovoltaic junction box is adsorbed to the top of the suction cup, and the position of the adsorption mechanism can be adjusted so as to adapt to various photovoltaic junction boxes.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic junction box detection, and in particular to a photovoltaic junction box diode characteristic detection device. Background Art

[0002] As a key connection device between photovoltaic modules and external circuits, the photovoltaic junction box, with its functional evolution and technological breakthroughs, is driving the industry towards high efficiency and intelligence. The photovoltaic junction box has the dual functions of current transmission and system protection. Its built-in bypass diode can effectively prevent component damage caused by the hot spot effect. When testing the diode characteristics of the photovoltaic junction box, you can use an oscilloscope, multimeter and other related equipment for testing. During the test, it needs to be fixed. For example, according to a photovoltaic junction box diode characteristics testing device with application number CN208937683U, it has an adsorption tool that uses a pneumatic tool to perform a one-time adsorption operation on the photovoltaic junction box inserted into the opening. However, the position of the adsorption tool is relatively fixed, which makes it impossible to adapt to the limit fixation work of various photovoltaic junction boxes. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a photovoltaic junction box diode characteristic detection device, which solves the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a photovoltaic junction box diode characteristic detection device, comprising a base, the top of the base is fixedly connected to a connecting seat, the top of the connecting seat is fixedly connected to a fixing seat, a plurality of connecting ends are inserted into the top of the fixing seat, the connecting ends and the bottoms of the connecting ends are fixedly connected to an internal threaded tube, one side of the internal threaded tube is fixedly connected to a connecting tube, one end of the connecting tube is fixedly connected to a solenoid valve, the interior of the internal threaded tube is threadedly connected to a second threaded tube, the top of the second threaded tube extends to the top of the connecting end and is fixedly connected to a sealing plug, the top of the sealing plug is fixedly connected to a suction cup, and the suction cup and the second threaded tube are communicated with the interior of the solenoid valve.

[0005] Preferably, a pump is fixedly connected to the bottom of the fixing seat, one end of the pump extends into the interior of the fixing seat, and a controller is fixedly connected to the front surface of the fixing seat.

[0006] Preferably, an oscilloscope is placed on the top of the fixing seat, and a multimeter is placed on the top of the fixing seat and on the left side of the oscilloscope.

[0007] Preferably, the top of the fixing seat is fixedly connected to a fixing frame, a first placement drawer is placed at the bottom of the inner cavity of the fixing frame, a second placement drawer is placed on the top of the fixing frame, a number of mounting blocks are placed inside the second placement drawer, and a fixing box is placed at the bottom of each mounting block, a rotating shaft is rotatably connected to the inside of the fixing box, a worm gear is fixedly sleeved on the outside of the rotating shaft, a worm gear is rotatably connected to the inside of the fixing box, and one end of the worm gear extends to the outside of the fixing box and is fixedly connected to a knob.

[0008] Preferably, the top end of the rotating shaft extends to the top of the fixed box and is fixedly connected to a mounting block, the top of the mounting block is fixedly connected to a side plate, the bottom of the fixed box is fixedly connected to a fixing block, and the bottom of the fixing block is fixedly connected to a first threaded tube.

[0009] Preferably, the bottom end of the internal threaded tube is fixedly connected to the driving seat, a block is placed inside the internal threaded tube, the bottom of the inner cavity of the internal threaded tube is fixedly connected to the liquid bag, the top of the liquid bag is fixedly connected to the bottom of the block, a connecting groove is provided inside the driving seat, the bottom of the inner cavity of the connecting groove is fixedly connected to the liquid tank, the inside of the connecting groove and above the liquid tank is fixedly connected to a liquid pump, one end of the liquid pump extends to the inside of the liquid tank, and the other end of the liquid pump extends to the inside of the liquid bag, and a fixing groove is provided inside the driving seat and on both sides of the connecting groove, one side of the inner cavity of the fixed groove is rotatably connected to a winding roller, and the other side of the inner cavity of the fixed groove is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to one end of the winding roller, the outside of the winding roller is wrapped with a traction rope, the top of the traction rope extends to the inside of the internal threaded tube and is fixedly connected to the bottom of the block.

[0010] Preferably, the side panels are rotatably connected to the inside with screws, one end of the screws extends to the outside of the side panels and is connected to clamping blocks through bearings, the other end of the screws extends to the outside of the side panels, one side of the clamping blocks is fixedly connected to a guide rod, and one end of the guide rod extends to the outside of the side panels.

[0011] Preferably, a switch valve is fixedly connected to the bottom of the fixing seat, and one end of the switch valve extends into the interior of the fixing seat.

[0012] The present invention provides a photovoltaic junction box diode characteristic detection device, which has the following beneficial effects: 1. The photovoltaic junction box diode characteristic detection device is provided with an internal threaded tube, a solenoid valve and a connecting end. According to the model of the photovoltaic junction box to be detected, a suction cup is taken, and then the bottom end of the second threaded tube is screwed into the interior of the internal threaded tube, so that the bottom end of the sealing plug is inserted into the interior of the connecting end. Then, the corresponding solenoid valve is opened, and then one end of the pump machine extracts the gas inside the fixed seat, so that the solenoid valve, the internal threaded tube, the connecting end and the second threaded tube, as well as the sealing plug and the interior of the suction cup generate suction, thereby adsorbing the photovoltaic junction box on the top of the suction cup. The position of the adsorption mechanism can be adjusted to adapt to a variety of photovoltaic junction boxes.

[0013] 2. The photovoltaic junction box diode characteristic detection device is provided with a fixing block, a mounting block and a clamping block. If the clamping block is needed, the bottom end of the first threaded tube is screwed into the inner threaded tube, and the fixing block, the side plate and the clamping block are installed on the top of the fixing seat. Then, the photovoltaic junction box is placed on the top of several mounting blocks. Then, by rotating the screw, the screw drives the clamping block to move, so that the silicone pad fixedly connected to the surface of the clamping block contacts the surface of the photovoltaic junction box, and the photovoltaic junction box is limited. The position of the fixing mechanism is adjusted according to the shape of the photovoltaic junction box to adapt to a variety of photovoltaic junction boxes.

[0014] 3. The photovoltaic junction box diode characteristic detection device, when the connecting end is not in use, extracts the liquid inside the liquid tank through one end of the liquid pump, and then discharges the liquid into the liquid bag with the other end of the liquid pump, so that the liquid bag expands and pushes the block to move. At this time, the output end of the servo motor drives the winding roller to reset and rotate, so that the winding roller releases the traction rope and moves the block, so that the block moves to the inside of the internal threaded tube and the connecting end, sealing the inside of the connecting end, and preventing objects from falling into the connecting end. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the fixing block and the connecting end of the present invention; Figure 3 This is a schematic diagram of the matching structure of the sealing plug and the connecting end head of the present invention; Figure 4 This is a schematic diagram of the internal structure of the fixed box of the present invention; Figure 5This is a schematic diagram of the connection structure between the connecting end and the sealing plug of the present invention; Figure 6 It is a schematic diagram of the internal structure of the internal threaded tube and the drive seat of the present invention.

[0017] In the figure: 1. base; 2. connecting seat; 3. fixing seat; 4. oscilloscope; 5. multimeter; 6. connecting end; 7. internal threaded tube; 8. first threaded tube; 9. fixing block; 10. mounting block; 11. side panel; 12. clamping block; 13. screw; 14. guide rod; 15. second threaded tube; 16. sealing plug; 17. suction cup; 18. pump; 19. controller; 20. fixing frame; 21. first placement drawer; 22. second placement drawer; 23. solenoid valve; 24. fixing box; 25. worm; 26. rotating shaft; 27. worm gear; 28. driving seat; 29. connecting groove; 30. liquid pump; 31. liquid tank; 32. fixing groove; 33. servo motor; 34. winding roller; 35. block; 36. liquid capsule; 38. connecting pipe; 39. knob; 40. traction rope. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] Example 1 See also Figures 1 to 6 The present invention provides a technical solution: a photovoltaic junction box diode characteristic detection device, including a base 1, the top of the base 1 is fixedly connected to a connecting base 2, the top of the connecting base 2 is fixedly connected to a fixing base 3, the top of the fixing base 3 is inserted with a plurality of connecting ends 6, the connecting ends 6, the bottoms of the connecting ends 6 are fixedly connected to an internal threaded tube 7, one side of the internal threaded tube 7 is fixedly connected to a connecting tube 38, one end of the connecting tube 38 is fixedly connected to a solenoid valve 23, the inside of the internal threaded tube 7 is threadedly connected to a second threaded tube 15, the top of the second threaded tube 15 extends to the top of the connecting end 6 and is fixedly connected to a sealing plug 16, the top of the sealing plug 16 is fixedly connected to a suction cup 17, and the suction cup 17 and the second threaded tube 15 are connected to the inside of the solenoid valve 23.

[0020] A pump 18 is fixedly connected to the bottom of the fixing base 3 , one end of the pump 18 extends into the interior of the fixing base 3 , and a controller 19 is fixedly connected to the front surface of the fixing base 3 , through which the device is controlled.

[0021] An oscilloscope 4 is placed on the top of the fixing base 3, and a multimeter 5 is placed on the top of the fixing base 3 and on the left side of the oscilloscope 4. The diode characteristics in the photovoltaic junction box are detected by the multimeter 5 and the oscilloscope 4. Other instruments for detecting the diode characteristics in the photovoltaic junction box can also be placed on the top of the fixing base 3 to detect the diode characteristics in the photovoltaic junction box.

[0022] The top of the fixing seat 3 is fixedly connected to the fixing frame 20, and a first placement drawer 21 is placed at the bottom of the inner cavity of the fixing frame 20. A second placement drawer 22 is placed on the top of the fixing frame 20. Several mounting blocks 10 are placed inside the second placement drawer 22. A fixing box 24 is placed at the bottom of each mounting block 10. A rotating shaft 26 is rotatably connected to the inside of the fixing box 24. A worm gear 27 is fixedly sleeved on the outside of the rotating shaft 26. A worm 25 that is transmission-connected to the worm gear 27 is rotatably connected to the inside of the fixing box 24. One end of the worm gear 25 extends to the outside of the fixing box 24 and is fixedly connected to a knob 39.

[0023] The top of the rotating shaft 26 extends to the top of the fixed box 24 and is fixedly connected to the mounting block 10. The top of the mounting block 10 is fixedly connected to the side plate 11. The bottom of the fixed box 24 is fixedly connected to the fixing block 9. The bottom of the fixing block 9 is fixedly connected to the first threaded tube 8.

[0024] The bottom end of the internal threaded tube 7 is fixedly connected to the driving seat 28, and a block 35 is placed inside the internal threaded tube 7. The bottom of the inner cavity of the internal threaded tube 7 is fixedly connected to a liquid capsule 36, and the top of the liquid capsule 36 is fixedly connected to the bottom of the block 35. A connecting groove 29 is provided inside the driving seat 28, and the bottom of the inner cavity of the connecting groove 29 is fixedly connected to a liquid tank 31. A liquid pump 30 is fixedly connected inside the connecting groove 29 and above the liquid tank 31. One end of the liquid pump 30 extends into the liquid tank 31, and the other end of the liquid pump 30 extends into the liquid capsule 36. Fixed grooves 32 are provided inside the driving seat 28 and on both sides of the connecting groove 29. A winding roller 34 is rotatably connected to one side of the inner cavity of the fixed groove 32, and a servo motor 33 is fixedly connected to the other side of the inner cavity of the fixed groove 32. The servo motor The output ends of 33 are fixedly connected to one end of the winding roller 34, and the outer sides of the winding roller 34 are wrapped with a traction rope 40. The top ends of the traction ropes 40 extend to the inside of the internal threaded tube 7 and are fixedly connected to the bottom of the block 35. The second threaded tube 15 is unscrewed from the inside of the internal threaded tube 7, and then the liquid pump 30 extracts the liquid inside the liquid tank 31, and then the other end of the liquid pump 30 discharges the liquid into the liquid capsule 36, so that the liquid capsule 36 expands and pushes the block 35 to move. At this time, the output end of the servo motor 33 drives the winding roller 34 to reset and rotate, so that the winding roller 34 releases the traction rope 40 and moves the block 35, so that the block 35 moves to the inside of the internal threaded tube 7 and the connecting end 6, and the inside of the connecting end 6 is closed to prevent objects from falling into the connecting end 6.

[0025] The side panels 11 are all rotatably connected with screw rods 13, one end of the screw rods 13 extends to the outside of the side panels 11 and is connected to clamping blocks 12 through bearings, the other end of the screw rods 13 extends to the outside of the side panels 11, and one side of the clamping blocks 12 is fixedly connected with guide rods 14, one end of the guide rods 14 extends to the outside of the side panels 11. The clamping blocks 12 are driven to move by the screw rods 13, so that the clamping blocks 12 drive the guide rods 14 to move inside the side panels 11, guiding the movement of the clamping blocks 12.

[0026] Example 2 See also Figure 1 The present invention provides a technical solution: a switch valve is fixedly connected to the bottom of the fixed seat 3, and one end of the switch valve extends into the inside of the fixed seat 3. The switch valve is used to control the suction force between the fixed seat 3 and the suction cup 17 to disappear.

[0027] In summary, when using the photovoltaic junction box diode characteristic detection device, according to the model of the photovoltaic junction box to be detected, the suction cup 17 is taken, and then the liquid pump 30 extracts the liquid inside the liquid capsule 36, and then the other end of the liquid pump 30 discharges the liquid into the liquid tank 31 for storage. The output end of the servo motor 33 drives the winding roller 34 to reel in the traction rope 40, so that the block 35 moves downward, so that the inside of the internal threaded tube 7 is opened. Then screw the bottom end of the second threaded tube 15 into the inner threaded tube 7 so that the bottom end of the sealing plug 16 is inserted into the inner connection end 6. Then open the corresponding solenoid valve 23 so that the inner threaded tube 7 is connected to the solenoid valve 23 through the connecting tube 38. Then one end of the pump 18 extracts the gas inside the fixing seat 3, so that the solenoid valve 23, the internal threaded tube 7, the connecting end 6 and the second threaded tube 15, the sealing plug 16 and the suction cup 17 generate suction, thereby adsorbing the photovoltaic junction box on the top of the suction cup 17. After the test is completed, the switch valve is opened to eliminate the suction between the fixing seat 3 and the suction cup 17, so that the photovoltaic junction box can be removed. Then the second threaded tube 15 is screwed out from the inside of the internal threaded tube 7, and then the liquid pump 30 extracts the liquid from the liquid tank 31, and then the other end of the liquid pump 30 discharges the liquid into the liquid capsule 36, so that the liquid capsule 36 expands and pushes the stopper 35 to move. At this time, the output end of the servo motor 33 drives the winding roller 34 to return and rotate, so that the winding roller 34 releases the traction rope 40, moves the stopper 35, and moves the stopper 35 to the inside of the internal threaded tube 7 and the connecting end 6, and closes the inside of the connecting end 6. If the clamping block 12 is needed, screw the bottom end of the first threaded tube 8 into the inner threaded tube 7, install the fixing block 9, the side plate 11 and the clamping block 12 on the top of the fixing base 3, and then turn the knob 39 so that the knob 39 drives the worm 25 to drive the worm gear 27 and the rotating shaft 26 to rotate, so that the rotating shaft 26 drives the mounting block 10 and the clamping block 12 to rotate, and adjust the angle of the clamping block 12. The photovoltaic junction box is then placed on top of several mounting blocks 10. The screw 13 is then rotated to drive the clamp 12 to move, so that the silicone pad fixedly connected to the surface of the clamp 12 contacts the surface of the photovoltaic junction box to limit the position of the photovoltaic junction box. The diode characteristics in the photovoltaic junction box are then tested using a multimeter 5, an oscilloscope 4, and corresponding wire probes.

[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change. Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict. Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A photovoltaic junction box diode characteristic detection device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a connecting seat (2), the top of the connecting seat (2) is fixedly connected to a fixing seat (3), the top of the fixing seat (3) is inserted with a plurality of connecting ends (6), the connecting ends (6) and the bottoms of the connecting ends (6) are fixedly connected to an internal threaded tube (7), one side of the internal threaded tube (7) is fixedly connected to a connecting tube (38), one end of the connecting tube (38) is fixedly connected to a solenoid valve (23), the inside of the internal threaded tube (7) is threadedly connected to a second threaded tube (15), the top of the second threaded tube (15) extends to the top of the connecting end (6) and is fixedly connected to a sealing plug (16), the top of the sealing plug (16) is fixedly connected to a suction cup (17), and the suction cup (17) and the second threaded tube (15) are both connected to the inside of the solenoid valve (23).

2. A photovoltaic junction box diode characteristic detection device according to claim 1, characterized in that: The bottom of the fixing seat (3) is fixedly connected to a pump (18), one end of the pump (18) extends into the interior of the fixing seat (3), and the front surface of the fixing seat (3) is fixedly connected to a controller (19).

3. The photovoltaic junction box diode characteristic detection device according to claim 1, characterized in that: An oscilloscope (4) is placed on the top of the fixing seat (3), and a multimeter (5) is placed on the top of the fixing seat (3) and on the left side of the oscilloscope (4).

4. The photovoltaic junction box diode characteristic detection device according to claim 1, characterized in that: The top of the fixing seat (3) is fixedly connected to a fixing frame (20), a first placement drawer (21) is placed at the bottom of the inner cavity of the fixing frame (20), a second placement drawer (22) is placed on the top of the fixing frame (20), a plurality of mounting blocks (10) are placed inside the second placement drawer (22), and a fixing box (24) is placed at the bottom of each mounting block (10), a rotating shaft (26) is rotatably connected to the inside of the fixing box (24), a worm gear (27) is fixedly provided on the outer side of the rotating shaft (26), a worm (25) is rotatably connected to the inside of the fixing box (24), and one end of the worm gear (25) extends to the outside of the fixing box (24) and is fixedly connected to a knob (39).

5. The photovoltaic junction box diode characteristic detection device according to claim 4, characterized in that: The top end of the rotating shaft (26) extends to the top of the fixed box (24) and is fixedly connected to a mounting block (10), the top of the mounting block (10) is fixedly connected to a side plate (11), the bottom of the fixed box (24) is fixedly connected to a fixing block (9), and the bottom of the fixing block (9) is fixedly connected to a first threaded tube (8).

6. The photovoltaic junction box diode characteristic detection device according to claim 1, characterized in that: The bottom end of the internally threaded tube (7) is fixedly connected to a driving seat (28), a stopper (35) is placed inside the internally threaded tube (7), a liquid capsule (36) is fixedly connected to the bottom of the inner cavity of the internally threaded tube (7), the top of the liquid capsule (36) is fixedly connected to the bottom of the stopper (35), a connecting groove (29) is provided inside the driving seat (28), the bottom of the inner cavity of the connecting groove (29) is fixedly connected to a liquid tank (31), a liquid pump (30) is fixedly connected inside the connecting groove (29) and above the liquid tank (31), one end of the liquid pump (30) extends into the liquid tank (31), and the liquid pump ( The other end of the connecting groove (30) extends into the interior of the liquid capsule (36), and a fixed groove (32) is provided inside the driving seat (28) and on both sides of the connecting groove (29), and a winding roller (34) is rotatably connected to one side of the inner cavity of the fixed groove (32), and a servo motor (33) is fixedly connected to the other side of the inner cavity of the fixed groove (32), and the output end of the servo motor (33) is fixedly connected to one end of the winding roller (34), and a traction rope (40) is wound around the outside of the winding roller (34), and the top end of the traction rope (40) extends into the interior of the internal threaded tube (7) and is fixedly connected to the bottom of the stopper (35).

7. The photovoltaic junction box diode characteristic detection device according to claim 5, characterized in that: The side plates (11) are rotatably connected to screw rods (13), one end of each screw rod (13) extends to the outside of the side plates (11) and is connected to a clamping block (12) via a bearing, the other end of each screw rod (13) extends to the outside of the side plates (11), one side of each clamping block (12) is fixedly connected to a guide rod (14), and one end of each guide rod (14) extends to the outside of the side plates (11).

8. The photovoltaic junction box diode characteristic detection device according to claim 1, characterized in that: The bottom of the fixing seat (3) is fixedly connected to a switch valve, and one end of the switch valve extends into the interior of the fixing seat (3).

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