Photovoltaic inverter arc fault detection device

Abstract

The present invention discloses a photovoltaic inverter arc fault detection device, including legs, an operating table, a lifting and selecting linkage push-pull component, a push-automatic limit release component, an automatic classification and placement component, a detection component and a photovoltaic inverter, wherein the operating table is fixedly arranged on the legs, the lifting and selecting linkage push-pull component is arranged on the operating table, the push-automatic limit release component is arranged on the operating table, the automatic classification and placement component is fixedly arranged on the push-automatic limit release component, the detection component is fixedly arranged on the operating table, and the photovoltaic inverter is arranged in the automatic classification and placement component. The present invention belongs to the field of arc fault detection technology, and specifically refers to a photovoltaic inverter arc fault detection device; the present invention is provided with a lifting and selecting linkage push-pull component, a push-automatic limit release component and an automatic classification and placement component, which solves the problem that the photovoltaic inverter arc fault detection device on the current market cannot automatically classify and place the photovoltaic inverter.

Description

Technical Field

[0001] The present invention belongs to the technical field of arc fault detection, and specifically refers to an arc fault detection device for a photovoltaic inverter. Background Art

[0002] A photovoltaic inverter is an electric power regulating device composed of semiconductor devices, which is mainly used to convert DC power into AC power. It is generally composed of a boost circuit and an inverter bridge circuit. The boost circuit boosts the DC voltage of the solar cell to the DC voltage required for the inverter output control, and the inverter bridge circuit converts the boosted DC voltage into an AC voltage of a common frequency. During the production process of photovoltaic inverters, it is necessary to perform arc fixed detection on the produced photovoltaic inverters to ensure the quality of the photovoltaic inverters. Usually, we will set a threshold. When the voltage or current signal exceeds this threshold, it is judged as an arc fault.

[0003] The existing photovoltaic inverter detection device requires the staff to insert the photovoltaic inverter into the detection device for detection. After the detection is completed, the photovoltaic inverter is classified and placed according to the detection quality of the photovoltaic inverter. During the photovoltaic inverter detection process, because the detection device cannot automatically classify and place the photovoltaic inverter according to the detection result of the photovoltaic inverter, the electric arc may injure the staff, thereby bringing certain dangers to the staff. Therefore, it is necessary to propose a photovoltaic inverter arc fault detection device. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a photovoltaic inverter arc fault detection device with a lifting and selecting linkage push-pull component, a push automatic restriction release component and an automatic classification and placement component, which effectively solves the problem that the photovoltaic inverter arc fault detection device on the market cannot automatically classify and place the photovoltaic inverters.

[0005] The technical solution adopted by the present invention is as follows: A photovoltaic inverter arc fault detection device includes a support leg, an operating table, a lifting and selecting linkage push-pull component, a push-automatic restriction release component, an automatic classification and placement component, a detection component and a photovoltaic inverter. The operating table is fixedly arranged on the support leg, the lifting and selecting linkage push-pull component is arranged on the operating table, the push-automatic restriction release component is arranged on the operating table, the automatic classification and placement component is fixedly arranged on the push-automatic restriction release component, the detection component is fixedly arranged on the operating table, the photovoltaic inverter is arranged in the automatic classification and placement component, the detection component detects the quality of the photovoltaic inverter and drives the lifting and selecting linkage push-pull component to work, the lifting and selecting push-pull component pushes the photovoltaic inverter into the automatic classification and placement component, the automatic classification and placement component automatically classifies and places the photovoltaic inverter, and the push-automatic restriction release component releases the restriction of the restricted automatic classification and placement component.

[0006] Furthermore, the lifting and lowering selection linkage push-pull assembly includes a track frame, a track core plate, a short column, a tooth plate, a power transmission assembly and a pulling assembly. The track frame is fixed on the operating table, the track core plate is slidably arranged on the detection assembly, the track core plate is located in the track frame, and a track is formed between the track core plate and the track frame. One end of the short column is slidably arranged on the detection assembly, the tooth plate is slidably arranged on the operating table, the tooth plate is fixed on the other end of the short column, the power transmission assembly is fixed on the operating table, and the pulling assembly is arranged on the operating table. The detection assembly drives the tooth plate to move up and down in the track formed by the track frame and the track core plate through the short column. When the tooth plate moves upward, the tooth plate drives the power transmission assembly to work, the power transmission assembly drives the pulling assembly to work, and the pulling assembly pushes the photovoltaic inverter out.

[0007] Furthermore, the power transmission assembly includes a transmission support, a rotating shaft, a linkage gear, a fixed circular plate and a torsion spring. There are two groups of transmission supports, the two groups of transmission supports are fixed on the operating table, the rotating shaft is rotatably arranged on the two groups of transmission supports, the linkage gear is fixed on the rotating shaft, the fixed circular plate is fixed on the operating table, the outer end of the torsion spring is fixed on the fixed circular plate, the inner end of the torsion spring is fixed on the end of the rotating shaft, the tooth plate moves upward, so that the linkage gear rotates, and the torsion spring accumulates elastic potential energy through the rotating shaft, and when the tooth plate is not engaged with the linkage gear, the elastic potential energy accumulated in the torsion spring releases energy, so that the rotating shaft rotates in the opposite direction.

[0008] Furthermore, the pulling and collecting assembly includes a push-pull support, a push-pull power gear, a toothed chain, a push-pull fixed plate, a threaded shaft, a push plate and a sliding pressure block. The push-pull support is fixed on the operating table, the push-pull fixed plate is fixed on the operating table, the threaded shaft is rotatably arranged on the push-pull support, the threaded shaft is threadedly arranged on the push-pull fixed plate, and there are two groups of push-pull power gears, one group of which is fixed on the rotating shaft, and the other group of push-pull power gears is fixed on the threaded shaft. The toothed chain connects the two groups of push-pull power gears, the push plate is rotatably arranged at one end of the threaded shaft, the sliding pressure block is rotatably arranged on the other end of the threaded shaft, the sliding pressure block is slidably arranged on the operating table, and the rotating shaft rotates. Through the two groups of push-pull power gears, the threaded shaft can be rotated forward and reversely, so that the push plate can push the photovoltaic inverter out and place it in a classified manner.

[0009] Furthermore, the push-to-automatic limit release component includes a fixed support plate, a support spring 1, a receiving plate, a linkage folding rod, a support spring 2 and a lifting and lowering pressure block. The fixed support plate is fixedly arranged on the side wall of the operating table, the bottom end of the support spring 1 is fixedly arranged on the fixed support plate, the receiving plate is fixedly arranged on the top end of the support spring 1, the linkage folding rod is slidably arranged in the operating table, the bottom end of the support spring 2 is fixedly arranged in the operating table, one end of the linkage folding rod is fixedly arranged on the receiving plate, the other end of the linkage folding rod is fixedly arranged on the top end of the support spring 2, the lifting and lowering pressure block is fixedly arranged on the linkage folding rod, the lifting and lowering pressure block is slidably arranged on the operating table, the sliding pressure block presses down the lifting and lowering pressure block to press down the linkage folding rod, and finally causes the receiving plate to move downward.

[0010] Furthermore, the automatic classification and placement component includes an upper slide, a lower slide, a classification plate, a transverse block, a transverse limit block and a classification component. The upper slide is fixed on the operating table, a hole is provided on the bottom plate of the upper slide, the lower slide is fixed on the operating table, the lower slide is located at the lower part of the upper slide, the classification plate is slidably arranged on the bottom plate of the upper slide, the classification plate is adapted to the hole of the bottom plate of the upper slide, the transverse block is fixed on the bottom of the classification plate, the transverse limit block is fixed on the receiving plate, the transverse block is adapted to the transverse limit block, the classification component is arranged at the bottom of the lower slide, and when the photovoltaic inverter is qualified, the classification The component prevents the transverse movement block from clamping the transverse movement limit block, that is, the classification plate returns to its original position after sliding a certain distance, and qualified photovoltaic inverters flow into the lower slide chute, while when the photovoltaic inverter is unqualified, the classification component drives the classification plate to move, so that the transverse movement block clamps the transverse movement limit block, and the classification plate no longer returns to its original position, and the unqualified photovoltaic inverter flows into the upper slide chute. After the photovoltaic inverters are classified and placed, the linked folding rod is pressed down to move the transverse movement limit block downward, so that the transverse movement limit block loses its restriction on the transverse movement block, and under the action of the classification component, the classification plate returns to its original position.

[0011] Furthermore, the classification component includes a classification bracket, an iron core, a conductive wire, a hanging plate, a reset spring and a magnetic block. The classification bracket is fixed on the lower sliding groove, the iron core is fixed on one end of the classification bracket, the conductive wire is wound on the iron core, the conductive wire is electrically connected to the detection component, the top of the hanging plate is fixed on the classification plate, the magnetic block is fixed on one side of the hanging plate, one end of the reset spring is fixed on the other side of the hanging plate, and the other end of the reset spring is fixed on the other end of the classification bracket. When the current in the conductive wire increases, the iron core generates a larger magnetic force, and the iron core attracts the magnetic block with a larger suction force, so that the magnetic block drives the classification plate to move through the hanging plate.

[0012] Furthermore, the detection component includes a support frame, a motor, a threaded rod, a lifting plate, a follower plate, a detector, an electrode sheet and a docking tube. The bottom end of the support frame is fixedly arranged on the operating table, the motor is fixedly arranged on the support frame, the motor is electrically connected to an external power supply, the top end of the threaded rod passes through the support frame and is rotatably arranged on the support frame, the bottom end of the threaded rod is rotatably arranged on the operating table, the output end of the motor is fixedly connected to the top end of the threaded rod, the lifting plate is slidably arranged on the support frame, the lifting plate is threaded on the threaded rod, the follower plate is fixedly arranged on the lifting plate, the detector is fixedly arranged on the support frame, the detector is electrically connected to the external power supply, the detector is electrically connected to the wire, the electrode sheet is fixedly arranged on the lifting plate, the electrode sheet is electrically connected to the detector, the docking tube is fixedly arranged on the lower surface of the lifting plate, the track core plate is slidably arranged on the follower plate, the short column is slidably arranged on the follower plate, the motor drives the lifting plate to move up and down through the threaded rod, so that the detector detects the photovoltaic inverter. If the photovoltaic inverter is unqualified, the voltage in the wire exceeds the threshold value, and when the photovoltaic inverter is qualified, the voltage on the wire will not exceed the threshold value.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows:

[0014] (1) The track core plate is slidably arranged on the follower plate, so that the track core plate is limited in the horizontal direction. When the follower plate moves up and down, the track core plate does not move with it, thereby achieving the effect that the short column can move up and down in the tracks on both sides of the core plate. When the short column is at the bottom of the core plate, the core plate can also be lifted up by the short column, avoiding the problem that the short column cannot be transferred from the track on one side of the core plate to the track on the other side. When the lifting plate moves upward, the tooth plate is meshed with the linkage gear, and when the lifting plate moves downward, the tooth plate is not meshed with the linkage gear;

[0015] (2) When the toothed plate is meshed with the linkage gear, the linkage gear drives the rotating shaft to rotate, and the torsion spring is tightened, thereby realizing the effect of converting the kinetic energy of the toothed plate into the elastic potential energy of the torsion spring. Furthermore, after the toothed plate and the linkage gear lose meshing, the elastic potential energy accumulated in the torsion spring is converted into the kinetic energy of the rotating shaft, which is the prerequisite for realizing the push plate to push out the photovoltaic inverter and then recover it;

[0016] (3) The wire is electrically connected to the detector. When the quality of the photovoltaic inverter is detected, a voltage is generated in the detector, and a voltage is generated in the wire. The iron core generates a magnetic field, and the iron core generates attraction on the magnetic block. The magnetic block moves, and the magnetic block drives the classification board to move. If the photovoltaic inverter has an arc fault, the voltage in the wire will exceed the threshold, and the classification board will no longer be recycled, thereby avoiding the problem of photovoltaic inverters of different qualities entering the same chute, thereby achieving the effect of classifying and collecting qualified and unqualified photovoltaic inverters;

[0017] (4) A transverse block is provided under the classification board, and a transverse limit block is provided on the receiving board. When the photovoltaic inverter is qualified, the transverse limit block will not limit the transverse block, and the classification board will not close the hole on the bottom plate of the upper chute. The unqualified photovoltaic inverter slides down into the lower chute. When the photovoltaic inverter is unqualified, the transverse limit block limits the movement of the transverse block, and the classification board closes the hole on the bottom plate of the upper chute. The unqualified photovoltaic inverter flows into the upper chute, thereby achieving the effect of classifying and recycling unqualified photovoltaic inverters and qualified photovoltaic inverters;

[0018] (5) When the push plate pushes the photovoltaic inverter, the sliding pressure block presses down the lifting pressure block, and the lateral limit block moves downward through the linked folding rod, so that the classification plate is recovered, laying the foundation for the next re-classification and collection of photovoltaic inverters. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a photovoltaic inverter arc fault detection device provided by the present invention Figure 1 ;

[0020] Figure 2A schematic diagram of the three-dimensional structure of a photovoltaic inverter arc fault detection device provided by the present invention Figure 2 ;

[0021] Figure 3 A schematic diagram of the structure of the lifting plate and the lifting selection linkage push-pull assembly provided by the present invention;

[0022] Figure 4 for Figure 3 A partial enlarged schematic diagram in the middle;

[0023] Figure 5 A schematic diagram of the structure of the push-pull assembly and the push-automatic limit-releasing assembly provided by the present invention, excluding the push-pull power gear and the toothed chain;

[0024] Figure 6 A schematic diagram of the structure of the automatic classification and placement component provided by the present invention;

[0025] Figure 7 This is a schematic diagram of the monitoring component structure provided by the present invention.

[0026] Among them, 1. outriggers, 2. operating table, 3. lifting selection linkage push-pull assembly, 4. push automatic release limit assembly, 5. automatic classification and placement assembly, 6. detection assembly, 7. photovoltaic inverter, 8. track frame, 9. track core plate, 10. short column, 11. tooth plate, 12. power transmission assembly, 13. pulling assembly, 14. transmission support, 15. rotating shaft, 16. linkage gear, 17. fixed circular plate, 18. torsion spring, 19. push-pull support, 20. push-pull power gear, 21. tooth chain, 22. push-pull fixed plate, 23. threaded shaft, 24. push plate, 25. , sliding pressure block, 26, fixed support plate, 27, support spring 1, 28, receiving plate, 29, linkage folding rod, 30, support spring 2, 31, lifting pressure block, 32, upper slide groove, 33, lower slide groove, 34, classification plate, 35, transverse block, 36, transverse limit block, 37, classification component, 38, classification bracket, 39, iron core, 40, wire, 41, hanging plate, 42, reset spring, 43, magnetic block, 44, support frame, 45, motor, 46, threaded rod, 47, lifting plate, 48, follow-up plate, 49, detector, 50, electrode sheet, 51, butt pipe.

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] like Figure 1-Figure 2 As shown, a photovoltaic inverter arc fault detection device provided by the present invention includes a support leg 1, an operating table 2, a lifting and selecting linkage push-pull component 3, a push automatic limit release component 4, an automatic classification and placement component 5, a detection component 6 and a photovoltaic inverter 7. The operating table 2 is fixedly arranged on the support leg 1, the lifting and selecting linkage push-pull component 3 is arranged on the operating table 2, the push automatic limit release component 4 is arranged on the operating table 2, the automatic classification and placement component 5 is fixedly arranged on the push automatic limit release component 4, the detection component 6 is fixedly arranged on the operating table 2, and the photovoltaic inverter 7 is arranged in the automatic classification and placement component 5.

[0031] like Figure 3-Figure 4 As shown, the lifting and lowering selection linkage push-pull component 3 includes a track frame 8, a track core plate 9, a short column 10, a tooth plate 11, a power transmission component 12 and a pulling component 13. The track frame 8 is fixed on the operating table 2, the track core plate 9 is slidably arranged on the detection component 6, the track core plate 9 is located in the track frame 8, and a track is formed between the track core plate 9 and the track frame 8. One end of the short column 10 is slidably arranged on the detection component 6, the tooth plate 11 is slidably arranged on the operating table 2, the tooth plate 11 is fixed on the other end of the short column 10, the power transmission component 12 is fixedly arranged on the operating table 2, and the pulling component 13 is arranged on the operating table 2.

[0032] like Figure 1 , Figure 3 As shown, the power transmission assembly 12 includes a transmission support 14, a rotating shaft 15, a linkage gear 16, a fixed circular plate 17 and a torsion spring 18. The transmission support 14 is provided with two groups, and the two groups of transmission supports 14 are fixed on the operating table 2. The rotating shaft 15 is rotatably arranged on the two groups of transmission supports 14, the linkage gear 16 is fixed on the rotating shaft 15, the fixed circular plate 17 is fixed on the operating table 2, the outer end of the torsion spring 18 is fixed on the fixed circular plate 17, and the inner end of the torsion spring 18 is fixed on the end of the rotating shaft 15.

[0033] like Figure 3 As shown, the pulling and collecting assembly 13 includes a push-pull support 19, a push-pull power gear 20, a toothed chain 21, a push-pull fixed plate 22, a threaded shaft 23, a push plate 24 and a sliding pressure block 25. The push-pull support 19 is fixed on the operating table 2, the push-pull fixed plate 22 is fixed on the operating table 2, the threaded shaft 23 is rotatably arranged on the push-pull support 19, the threaded shaft 23 is threadedly arranged on the push-pull fixed plate 22, and there are two groups of push-pull power gears 20, one of which is fixed on the rotating shaft 15, and the other group of push-pull power gears 20 is fixed on the threaded shaft 23. The toothed chain 21 connects the two groups of push-pull power gears 20, the push plate 24 is rotatably arranged on one end of the threaded shaft 23, the sliding pressure block 25 is rotatably arranged on the other end of the threaded shaft 23, and the sliding pressure block 25 is slidably arranged on the operating table 2.

[0034] like Figure 5 As shown, the push automatic limit release component 4 includes a fixed support plate 26, a support spring 1 27, a receiving plate 28, a linkage folding rod 29, a support spring 2 30 and a lifting and lowering pressure block 31. The fixed support plate 26 is fixedly arranged on the side wall of the operating table 2, the bottom end of the support spring 1 27 is fixedly arranged on the fixed support plate 26, the receiving plate 28 is fixedly arranged on the top of the support spring 1 27, the linkage folding rod 29 is slidably arranged in the operating table 2, the bottom end of the support spring 2 30 is fixedly arranged in the operating table 2, one end of the linkage folding rod 29 is fixedly arranged on the receiving plate 28, and the other end of the linkage folding rod 29 is fixedly arranged on the top of the support spring 2 30, the lifting and lowering pressure block 31 is fixedly arranged on the linkage folding rod 29, and the lifting and lowering pressure block 31 is slidably arranged on the operating table 2.

[0035] like Figure 6 As shown, the automatic classification and placement component 5 includes an upper slide trough 32, a lower slide trough 33, a classification plate 34, a transverse block 35, a transverse limit block 36 and a classification component 37. The upper slide trough 32 is fixed on the operating table 2, and a hole is provided on the bottom plate of the upper slide trough 32. The lower slide trough 33 is fixed on the operating table 2, and the lower slide trough 33 is located at the lower part of the upper slide trough 32. The classification plate 34 is slidably arranged on the bottom plate of the upper slide trough 32, and the classification plate 34 is adapted to the hole of the bottom plate of the upper slide trough 32. The transverse block 35 is fixed on the bottom of the classification plate 34, and the transverse limit block 36 is fixed on the receiving plate 28. The transverse block 35 is adapted to the transverse limit block 36, and the classification component 37 is arranged at the bottom of the lower slide trough 33.

[0036] like Figure 6As shown, the classification component 37 includes a classification bracket 38, an iron core 39, a wire 40, a hanging plate 41, a reset spring 42 and a magnet 43. The classification bracket 38 is fixed on the lower slide groove 33, the iron core 39 is fixed on one end of the classification bracket 38, the wire 40 is wound on the iron core 39, the wire 40 is electrically connected to the detection component 6, the top of the hanging plate 41 is fixed on the classification plate 34, the magnet 43 is fixed on one side of the hanging plate 41, one end of the reset spring 42 is fixed on the other side of the hanging plate 41, and the other end of the reset spring 42 is fixed on the other end of the classification bracket 38.

[0037] like Figure 7 As shown, the detection assembly 6 includes a support frame 44, a motor 45, a threaded rod 46, a lifting plate 47, a follower plate 48, a detector 49, an electrode sheet 50 and a butt joint pipe 51. The bottom end of the support frame 44 is fixedly arranged on the operating table 2, the motor 45 is fixedly arranged on the support frame 44, the motor 45 is electrically connected to the external power supply, the top end of the threaded rod 46 passes through the support frame 44 and is rotatably arranged on the support frame 44, the bottom end of the threaded rod 46 is rotatably arranged on the operating table 2, the output end of the motor 45 is fixedly connected to the top end of the threaded rod 46, the lifting plate 47 The lifting plate 47 is threaded on the threaded rod 46, the follower plate 48 is fixed on the lifting plate 47, the detector 49 is fixed on the support frame 44, the detector 49 is electrically connected to the external power supply, the detector 49 is electrically connected to the wire 40, the electrode sheet 50 is fixed on the lifting plate 47, the electrode sheet 50 is electrically connected to the detector 49, the docking pipe 51 is fixed on the lower surface of the lifting plate 47, the track core plate 9 is slidably arranged on the follower plate 48, and the short column 10 is slidably arranged on the follower plate 48.

[0038] When in use, the photovoltaic inverter 7 is placed on the operating table 2, the detector 49 is turned on, the motor 45 is turned on, the motor 45 drives the threaded rod 46 to rotate, the threaded rod 46 drives the lifting plate 47 to descend, the lifting plate 47 drives the electrode sheet 50 and the docking tube 51 to descend, and drives the follower plate 48 to move downward. When the docking tube 51 covers the photovoltaic inverter 7, the detector 49 detects the quality of the photovoltaic inverter 7. If the photovoltaic inverter 7 is qualified, the voltage on the detector 49 does not exceed the threshold value, there is a voltage on the wire 40, but the voltage on the wire 40 does not exceed the threshold value, the iron core 39 generates a magnetic field, the iron core 39 generates suction on the magnetic block 43, the iron core 39 pulls the magnetic block 43 to move, the magnetic block 43 pulls the hanging plate 41 to move, and the hanging plate 41 makes the reset spring When the spring 42 is stretched, it drives the classification plate 34 to move, and the classification plate 34 drives the transverse block 35 to move. However, since the voltage on the wire 40 is less than the threshold value, the transverse limit block 36 will not have a limiting effect on the transverse block 35. If the voltage on the wire 40 exceeds the threshold value, the iron core 39 has a greater suction force on the magnetic block 43, and the transverse block 35 moves a greater distance. The transverse block 35 presses down the transverse limit block 36, and the transverse limit block 36 presses down the receiving plate 28, and the receiving plate 28 presses down the support spring 27. When the transverse block 35 moves to exceed the transverse limit block 36, the support spring 27 returns to its original state, and the support spring 27 pushes the receiving plate 28 to move upward, and the receiving plate 28 pushes the transverse limit block 36 to move upward, and the transverse limit block 36 clamps the transverse block 35. When the voltage is reduced, the classification plate 34 closes the hole on the bottom plate of the upper slide 32, and the control motor 45 rotates in the opposite direction. The motor 45 drives the threaded rod 46 to rotate in the opposite direction, and the threaded rod 46 drives the lifting plate 47 to slide upward. The lifting plate 47 drives the electrode sheet 50 and the butt pipe 51 to slide upward while driving the follower plate 48 to slide upward. The wire 40 loses voltage, and the iron core 39 does not generate suction force on the magnetic block 43. If the photovoltaic inverter 7 is a qualified product, because the transverse limit block 36 does not limit the transverse block 35, the reset spring 42 pulls the hanging plate 41 to move in the opposite direction under the action of the reset spring 42, and the hanging plate 41 pulls the classification plate 34 back to its original position. The classification plate 34 does not block the hole on the bottom plate of the upper slide 32, and the follower plate 48 drives the short column 10 The short column 10 moves downward, and the toothed plate 11 moves downward. When the follower plate 48 moves downward, the short column 10 is in one side track. At this time, the toothed plate 11 is not meshed with the linkage gear 16, and the toothed plate 11 cannot drive the linkage gear 16 to rotate. The follower plate 48 continues to move downward, and the short column 10 moves to the other side track. At this time, the toothed plate 11 is meshed with the linkage gear 16. When the follower plate 48 moves upward, the follower plate 48 drives the short column 10 to move upward, the short column 10 drives the toothed plate 11 to move upward, the toothed plate 11 drives the linkage gear 16 to rotate, and the linkage gear 16 drives the rotating shaft 15 to rotate. The rotating shaft 15 drives the torsion spring 18 to contract while driving one set of push-pull power gears 20 to rotate. The torsion spring 18 accumulates elastic potential energy.One group of push-pull power gears 20 is linked through the tooth chain 21 to make the other group of push-pull power gears 20 rotate, and the other group of push-pull power gears 20 drives the threaded shaft 23 to rotate, and the threaded shaft 23 drives the push plate 24 and the sliding pressure block 25 to move, and the push plate 24 pushes the photovoltaic inverter 7 out. If the photovoltaic inverter 7 is qualified, at this time, the classification plate 34 cannot block the hole on the bottom plate of the upper slide trough 32, and the qualified photovoltaic inverter 7 flows to the lower slide trough 33 for collection. If the photovoltaic inverter 7 is unqualified, at this time, the classification plate 34 will block the hole on the bottom plate of the upper slide trough 32. The hole on the plate is blocked, and the unqualified photovoltaic inverter 7 flows to the upper slide 32 for collection. The follower plate 48 continues to move upward, driving the short column 10 to continue to move upward, and finally the threaded shaft 23 continues to rotate, and the sliding pressure block 25 continues to move. At the same time, the sliding pressure block 25 squeezes the lifting pressure block 31, and the lifting pressure block 31 drives the linkage folding rod 29 to move downward, and the linkage folding rod 29 drives the support spring 2 30 to be compressed, and the linkage folding rod 29 drives the receiving plate 28 to move downward, and the receiving plate 28 drives the lateral limit block 36 to move downward. When the photovoltaic inverter When 7 is unqualified, the lateral limit block 36 loses its limiting effect on the lateral block 35, the reset spring 42 drives the hanging plate 41 to move in the opposite direction, the hanging plate 41 drives the classification plate 34 to move in the opposite direction, the classification plate 34 returns to its original position, and when the sliding pressure block 25 squeezes the lifting pressure block 31, the short column 10 gradually moves from one side track to the other side track, the tooth plate 11 loses its meshing effect with the linkage gear 16, the torsion spring 18 releases its elastic potential energy, the torsion spring 18 drives the rotating shaft 15 to rotate in the opposite direction, and the rotating shaft 15 drives one set of push-pull power gears 20 to rotate in the opposite direction , one set of push-pull power gears 20 drives another set of push-pull power gears 20 to rotate in the opposite direction through the toothed chain 21, and the other set of push-pull power gears 20 drives the threaded shaft 23 to rotate in the opposite direction, and the threaded shaft 23 drives the push plate 24 and the sliding pressure block 25 to move in the opposite direction, and the push plate 24 and the sliding pressure block 25 return to their original positions, and the sliding pressure block 25 loses its downward pressure on the lifting pressure block 31, and the supporting spring 2 30 drives the linkage folding rod 29 to move upward, and the linkage folding rod 29 drives the lifting pressure block 31 to move upward, and the lifting pressure block 31 returns to its original position, and the classification of the photovoltaic inverter 7 is completed. ,

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0041] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A photovoltaic inverter arc fault detection device, comprising a leg (1), characterized in that: An operating table (2) is fixedly provided on the supporting leg (1), a lifting and selecting linkage push-pull component (3) is provided on the operating table (2), a pushing and automatically releasing limit component (4) is provided on the operating table (2), an automatic classification and placement component (5) is fixedly provided on the pushing and automatically releasing limit component (4), a detection component (6) is fixedly provided on the operating table (2), a photovoltaic inverter (7) is provided in the automatic classification and placement component (5), and the lifting and selecting linkage push-pull component (3) comprises a track frame (8), a track core plate (9), and a short column ( 10), a tooth plate (11), a power transmission assembly (12) and a pulling assembly (13), the track frame (8) is fixedly mounted on the operating table (2), the track core plate (9) is slidably mounted on the detection assembly (6), one end of the short column (10) is slidably mounted on the detection assembly (6), the tooth plate (11) is slidably mounted on the operating table (2), the tooth plate (11) is fixedly mounted on the other end of the short column (10), the power transmission assembly (12) is fixedly mounted on the operating table (2), and the pulling assembly (13) is mounted on the operating table (2); The power transmission assembly (12) comprises a transmission support (14), a rotating shaft (15), a linkage gear (16), a fixed circular plate (17) and a torsion spring (18); the transmission support (14) is provided with two groups, the two groups of transmission supports (14) are fixedly mounted on the operating table (2), the rotating shaft (15) is rotatably mounted on the two groups of transmission supports (14), the linkage gear (16) is fixedly mounted on the rotating shaft (15), the fixed circular plate (17) is fixedly mounted on the operating table (2), the outer end of the torsion spring (18) is fixedly mounted on the fixed circular plate (17), and the inner end of the torsion spring (18) is fixedly mounted on the end of the rotating shaft (15); The pulling and collecting assembly (13) comprises a push-pull support (19), a push-pull power gear (20), a toothed chain (21), a push-pull fixed plate (22), a threaded shaft (23), a push plate (24) and a sliding pressure block (25); the push-pull support (19) is fixedly mounted on the operating table (2); the push-pull fixed plate (22) is fixedly mounted on the operating table (2); the threaded shaft (23) is rotatably mounted on the push-pull support (19); and the threaded shaft (23) is threadedly mounted on the push-pull fixed plate (22). The push-pull power gears (20) are provided with two groups, one of which is fixedly arranged on the rotating shaft (15), and the other is fixedly arranged on the threaded shaft (23); the toothed chain (21) connects the two groups of push-pull power gears (20); the push plate (24) is rotatably arranged on one end of the threaded shaft (23); the sliding pressure block (25) is rotatably arranged on the other end of the threaded shaft (23); and the sliding pressure block (25) is slidably arranged on the operating table (2); The push-to-release automatic limit release component (4) comprises a fixed support plate (26), a support spring 1 (27), a receiving plate (28), a linkage folding rod (29), a support spring 2 (30) and a lifting and lowering pressure block (31), wherein the fixed support plate (26) is fixedly arranged on the side wall of the operating table (2), the bottom end of the support spring 1 (27) is fixedly arranged on the fixed support plate (26), the receiving plate (28) is fixedly arranged on the top end of the support spring 1 (27), the linkage folding rod (29) is slidably arranged in the operating table (2), the bottom end of the support spring 2 (30) is fixedly arranged in the operating table (2), one end of the linkage folding rod (29) is fixedly arranged on the receiving plate (28), the other end of the linkage folding rod (29) is fixedly arranged on the top end of the support spring 2 (30), the lifting and lowering pressure block (31) is fixedly arranged on the linkage folding rod (29), and the lifting and lowering pressure block (31) is slidably arranged on the operating table (2); The automatic classification and placement component (5) comprises an upper slide groove (32), a lower slide groove (33), a classification plate (34), a transverse movement block (35), a transverse movement limit block (36) and a classification component (37), wherein the upper slide groove (32) is fixedly arranged on the operating table (2), the lower slide groove (33) is fixedly arranged on the operating table (2), the classification plate (34) is slidably arranged on the bottom plate of the upper slide groove (32), the transverse movement block (35) is fixedly arranged on the bottom of the classification plate (34), the transverse movement limit block (36) is fixedly arranged on the receiving plate (28), and the classification component (37) is arranged at the bottom of the lower slide groove (33); The detection assembly (6) comprises a support frame (44), a motor (45), a threaded rod (46), a lifting plate (47), a follower plate (48), a detector (49), an electrode sheet (50) and a butt joint pipe (51), wherein the bottom end of the support frame (44) is fixedly mounted on the operating table (2), the motor (45) is fixedly mounted on the support frame (44), the top end of the threaded rod (46) passes through the support frame (44) and is rotatably mounted on the support frame (44), the bottom end of the threaded rod (46) is rotatably mounted on the operating table (2), and the motor The output end (45) is fixedly connected to the top of the threaded rod (46), the lifting plate (47) is slidably arranged on the support frame (44), the lifting plate (47) is threadedly arranged on the threaded rod (46), the follower plate (48) is fixedly arranged on the lifting plate (47), the detector (49) is fixedly arranged on the support frame (44), the electrode sheet (50) is fixedly arranged on the lifting plate (47), the electrode sheet (50) is electrically connected to the detector (49), and the docking pipe (51) is fixedly arranged on the lower surface of the lifting plate (47).

2. A photovoltaic inverter arc fault detection device according to claim 1, characterized in that: The classification component (37) comprises a classification bracket (38), an iron core (39), a conductive wire (40), a hanging plate (41), a reset spring (42) and a magnetic block (43); the classification bracket (38) is fixed on the lower slide groove (33); the iron core (39) is fixed on one end of the classification bracket (38); the conductive wire (40) is wound on the iron core (39); the top end of the hanging plate (41) is fixed on the classification plate (34); the magnetic block (43) is fixed on one side of the hanging plate (41); one end of the reset spring (42) is fixed on the other side of the hanging plate (41); and the other end of the reset spring (42) is fixed on the other end of the classification bracket (38).

3. A photovoltaic inverter arc fault detection device according to claim 2, characterized in that: The track core plate (9) is slidably disposed on the follower plate (48) up and down, and the short column (10) is slidably disposed on the follower plate (48).

4. A photovoltaic inverter arc fault detection device according to claim 3, characterized in that: The detector (49) is electrically connected to an external power source, the detector (49) is electrically connected to a wire (40), and the motor (45) is electrically connected to the external power source.

5. A photovoltaic inverter arc fault detection device according to claim 4, characterized in that: The bottom plate of the upper slide groove (32) is provided with a hole, the lower slide groove (33) is located at the lower part of the upper slide groove (32), the classification plate (34) is adapted to the hole of the bottom plate of the upper slide groove (32), and the transverse movement block (35) is adapted to the transverse movement limit block (36).

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