A lightning protection wire installation structure for a photovoltaic panel

Abstract

The present invention relates to the technical field of insulation systems for power electronic components, and particularly to a lightning protection wire installation structure for a photovoltaic panel, which is used to solve the problem that the existing installation structure of the lightning protection wire has defects; the structure includes a flexible conductive band, a rectangular frame, a reset block, a base and a metal cage; the flexible conductive band is inserted into the rectangular frame and is slidably connected to the rectangular frame; one end of the flexible conductive band is connected to a lightning arrester, and the other end is connected to the metal cage, and the metal cage is grounded; the rectangular frame is hingedly installed on the base, and the reset block is connected to the lower end of the rectangular frame and is located below the hinge point between the rectangular frame and the base; the hinge plate can swing around the hinge point along the thickness direction of the flexible conductive band; this structure can reduce the force on the conductive band, avoid damage caused by excessive stretching, avoid damage caused by excessive torsion or repeated bending of the conductive band due to wind force changes, and the reset block keeps or restores the rectangular frame to a vertical state under its own gravity, so that the conductive band maintains the posture in a windless state and avoids torsion of the conductive band.

Description

Technical Field

[0001] The present invention relates to the technical field of power electronic component insulation systems, and particularly to a lightning protection wire installation structure for a photovoltaic panel. Background Art

[0002] In the modern energy field, photovoltaic systems, as a sustainable clean energy solution, have been widely applied and developed.

[0003] Power electronic components such as metal-oxide-semiconductor field-effect transistors (MOSFETs) and insulated-gate bipolar transistor (IGBT) chips and modules play extremely crucial roles in photovoltaic systems.

[0004] They are widely used in core equipment such as photovoltaic inverters and are responsible for achieving efficient conversion of direct current to alternating current. The stability of their performance directly affects the power generation efficiency and stability of the entire photovoltaic system.

[0005] However, photovoltaic systems are usually installed in open outdoor areas and are extremely vulnerable to lightning strikes.

[0006] The overvoltage and overcurrent generated by lightning may cause irreversible damage to power electronic components including MOSFETs, IGBT chips and modules, and further lead to the failure or even paralysis of the entire photovoltaic system.

[0007] Therefore, effective lightning protection measures are crucial for ensuring the normal operation of power electronic components in photovoltaic systems.

[0008] Flexible conductive bands can avoid tensile damage caused by factors such as building settlement.

[0009] In order to ensure the expansion and contraction of the conductive band, the conductive band cannot be fixed. In strong wind weather, the conductive band is prone to excessive stretching or repeated torsion, resulting in damage to the conductive band. This will not only reduce the conductivity of the lightning protection wire but may also cause the wire to break, rendering the lightning protection system ineffective and unable to provide reliable lightning protection for power electronic components such as MOSFETs and IGBTs.

[0010] On the other hand, the existing lightning protection wire installation structures have insufficient functions of limiting and guiding the wire, and cannot effectively limit the torsion angle and direction of the lightning protection wire while ensuring its normal expansion and contraction, resulting in uneven stress on the lightning protection wire when the wind force changes and further increasing the risk of damage. Summary of the Invention

[0011] The present invention provides a lightning protection wire installation structure for a photovoltaic panel to solve the problem of defects in the existing lightning protection wire installation structures.

[0012] To alleviate the above technical problems, the technical solution provided by the present invention lies in:

[0013] A lightning conductor installation structure for a photovoltaic panel, comprising a flexible conductive tape, a rectangular frame, a reset block, a base, a lightning arrester and a metal cage;

[0014] The flexible conductive belt is inserted into the rectangular frame and is slidably connected to the rectangular frame;

[0015] One end of the flexible conductive tape is connected to the lightning receptor, and the other end is connected to the metal cage, and the metal cage is grounded;

[0016] The rectangular frame is hingedly mounted on the base, and the reset block is connected to the lower end of the rectangular frame and is located below the hinge point between the rectangular frame and the base;

[0017] The hinge plate can swing around the hinge point along the thickness direction of the flexible conductive belt.

[0018] Furthermore, a limiting hole is provided on the rectangular frame, and the flexible conductive belt is inserted into the limiting hole with both ends extending out of the limiting hole.

[0019] Furthermore, it also includes a pull rope, one end of which is connected to the reset block, and the other end of which is connected to the base;

[0020] The pull rope is perpendicular to the swing surface of the rectangular frame.

[0021] Furthermore, it also includes a primary coil connected to the lightning rod, a secondary coil connected to the metal cage, and an incremental coil moved between the primary coil and the secondary coil, the primary coil is coaxial with the secondary coil, and the incremental coil can be moved to a coaxial position of the secondary coil to increase the number of turns of the secondary coil.

[0022] Furthermore, it also includes a slide bar, which is connected to the incremental coil and slidably mounted on the base;

[0023] The slide bar moves along its own axis to drive the incremental coil to move.

[0024] Furthermore, two telescopic rods are symmetrically hinged on both sides of the sliding rod, and both ends of the two telescopic rods away from the sliding rod are hinged to the base;

[0025] A force storage spring is sleeved on the telescopic rod, and the force storage spring can apply thrust to the sliding rod when elastically restoring.

[0026] Furthermore, a guide wheel is rotatably connected to the base, and the pull rope is transmitted to the guide wheel to change the direction of the pulling force applied by the pull rope to the sliding rod.

[0027] Furthermore, it also includes a reset mechanism, which includes an upper wedge block, a lower wedge block, a push rod and a reset spring;

[0028] The upper wedge block slides vertically on the upper part of the lower wedge block. The push rod is fixedly connected to the lower wedge block. One end of the return spring is fixedly arranged, and the other end is connected to the lower wedge block for applying a pulling force to the lower wedge block.

[0029] When the upper wedge block moves downward, it can push the lower wedge block to slide away from the incremental coil, thereby driving the push rod away from the incremental coil.

[0030] When the upper wedge block moves upward, it can move away from the lower wedge block. Thus, the return spring pulls the lower wedge block, causing the push rod to approach the incremental coil.

[0031] Furthermore, a first ring is slidably arranged vertically on the upper part of the base, and a first wedge block is slidably connected to the upper surface. A second wedge block is connected to the side wall of the first ring. The upper wedge block is fixedly connected to the second wedge block. The lower wedge block is slidably connected horizontally inside the first wedge block. A sliding cavity matching the lower wedge block is formed inside the first wedge block, and the push rod penetrates and slides through the first wedge block.

[0032] Furthermore, a cage cover is hinged on the metal cage.

[0033] The beneficial effects of the present invention are analyzed as follows:

[0034] A lightning protection wire installation structure for a photovoltaic panel, comprising a flexible conductive strip, a rectangular frame, a reset block, a base, and a metal cage. The flexible conductive strip is inserted into the rectangular frame and is slidably connected to the rectangular frame. One end of the flexible conductive strip is connected to a lightning arrester, and the other end is connected to the metal cage, and the metal cage is grounded. The rectangular frame is hingedly installed on the base. The reset block is connected to the lower end of the rectangular frame and is located below the hinge point between the rectangular frame and the base. The hinge plate can swing around the hinge point along the thickness direction of the flexible conductive strip.

[0035] The cross-section of the limiting hole is consistent with that of the conductive strip, which can limit the conductive strip and prevent the conductive strip from twisting in the limiting hole. At the same time, it does not affect the elongation of the conductive strip. When the wind blows along the thickness direction of the conductive strip and the wind force is large, the conductive strip swings and drives the rectangular frame to swing, thereby reducing the windward area, reducing the force on the conductive strip, and avoiding damage caused by excessive stretching. At the same time, the rectangular frame can limit the twisting angle and direction of the conductive strip, avoiding damage caused by excessive twisting or repeated bending of the conductive strip due to wind force changes. The reset block keeps or restores the rectangular frame to a vertical state under its own gravity, so as to keep the conductive strip in the posture in the windless state and avoid the twisting of the conductive strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 Schematic diagram of the overall structure of the present invention;

[0038] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of part A in;

[0039] Figure 3 Schematic diagram of the structure of the present invention when the photovoltaic panel is stored;

[0040] Figure 4 Schematic diagram of the structure at the second ring of the present invention;

[0041] Figure 5 Schematic diagram of the structure at the swivel ring of the present invention;

[0042] Figure 6 For the present invention Figure 5 Schematic diagram of the structure of part B in;

[0043] Figure 7 Schematic diagram of the structure at the first wedge block of the present invention;

[0044] Figure 8 Schematic diagram of the structure at the cage cover of the present invention;

[0045] Figure 9 Schematic diagram of the structure of the metal cage of the present invention;

[0046] Figure 10 Schematic diagram of the structure of the current transmission mechanism of the present invention;

[0047] Figure 11 For the present invention Figure 10 Schematic diagram of the structure of part C in;

[0048] Figure 12 Schematic diagram of the structure of the reset mechanism of the present invention

[0049] Figure 13 Schematic diagram of the structure at the reset block of the present invention.

[0050] Icon:

[0051] 100. Support mechanism; 110. Base; 120. Lightning arrester; 130. Hydraulic rod; 140. First ring; 150. Rotating shaft; 151. Gear; 152. Photovoltaic panel; 160. Second ring; 161. Rack; 162. Third ring; 170. Elastic ball; 171. Ball groove; 180. Clamping ball; 200. Storage mechanism; 201. Storage groove; 210. Stopper; 220. Wiping cotton; 230. Pipe; 240. Valve; 250. Swivel ring; 260. First wedge block; 270. Second wedge block; 280. Connecting rod; 290. Lifting valve; 300. Protection mechanism; 310. Metal cage; 320. Cage cover; 330. Mounting rod; 340. Swing rod; 350. Poking rod; 400. Current transmission mechanism; 410. Flexible conductive belt; 420. Rectangular frame; 421. Transmission rod; 422. Reset block; 430. Primary coil; 440. Secondary coil; 450. Telescopic rod; 460. Energy storage spring; 470. Slide bar; 480. Incremental coil; 490. Pulling rope; 491. Guide pulley; 500. Reset mechanism; 510. Upper wedge block; 520. Lower wedge block; 530. Push rod; 540. Reset spring. Detailed implementation mode

[0052] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0053] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0054] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0055] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] Embodiment, such as Figures 9 - 12 As shown, a lightning protection wire installation structure for a photovoltaic panel is applied to an aerial photovoltaic panel 152, and includes a lightning arrester 120 and a metal cage 310. The lightning arrester 120 is electrically connected to the metal cage 310 through a flexible conductive band 410. An original coil 430 is also electrically connected to the lightning arrester 120, and a secondary coil 440 is also electrically connected to the metal cage 310. The metal cage 310 is connected to a grounding device through a downlead. After lightning strikes the lightning arrester 120, the current is conducted through the flexible conductive band 410 and the electromagnetic induction coupling cooperation of the original coil 430 and the secondary coil 440, thereby avoiding the problem that a poor lightning protection effect may be caused if a single conductive means has a problem;

[0057] In addition, if strong wind appears during a thunderstorm, the blowing of the wind will cause the flexible conductive band 410 to deform. At this time, the length of the flexible conductive band 410 increases and the width decreases, so the resistance increases, and the conduction efficiency of the flexible conductive band 410 decreases. To ensure the transmission of current, the number of turns of the secondary coil 440 increases at this time to facilitate the current transmission between the lightning arrester 120 and the metal cage 310.

[0058] A transmission rod 421 is hinged on a base 110. The top of the transmission rod 421 is connected to a rectangular frame 420, and the bottom is connected to a reset block 422. When the wind blows the flexible conductive band 410 in the thickness direction of the flexible conductive band 410, the flexible conductive band 410 deforms and drives the transmission rod 421 to swing against the gravity of the reset block 422. At this time, the flexible conductive band 410 can tend to be parallel to the wind direction, thereby reducing the windward area to reduce the deformation when blown by the wind. When the wind force decreases or the wind disappears, the reset block 422 moves downward by gravity, causing the transmission rod 421 to tend to be vertical, and thus the flexible conductive band 410 returns to its original state;

[0059] An incremental coil 480 is slidably arranged radially in front of the secondary coil 440. When the rectangular frame 420 slides to near the end of the stroke, the incremental coil 480 moves in front of the secondary coil 440 and is electrically contacted with the secondary coil 440, so that the number of turns of the secondary coil 440 increases;

[0060] The middle frame of the incremental coil 480 is connected to a slide bar 470, and two telescopic rods 450 are symmetrically arranged on both sides of the slide bar 470. One end of the two telescopic rods 450 is hinged to the base 110, and the other end is hinged to the slide bar 470. A storage spring 460 is sleeved on the telescopic rod 450. When the storage spring 460 is in an extended state, the slide bar 470 slides to the end of its travel. When the slide bar 470 slides, the telescopic rod 450 swings synchronously. At this time, both ends of the telescopic rod 450 As the spacing decreases, the force storage spring 460 is gradually compressed and shortened. When the telescopic rod 450 is perpendicular to the sliding rod 470, the telescopic rod 450 is shortened to the shortest state. At this time, the force storage spring 460 is in the shortest state of being compressed. If the sliding rod 470 is continuously pushed, the elasticity of the force storage spring 460 is instantly released, so that the sliding rod 470 quickly slides to the end of one end of its travel. Similarly, in the aforementioned state, the sliding rod 470 is pulled, and the sliding rod 470 can also quickly slide to the end of the other end of its travel.

[0061] The reset block 422 is connected to the slide bar 470 through a pull rope 490. The pull rope 490 is perpendicular to the arc surface formed when the transmission rod 421 swings, so that the transmission rod 421 can apply tension to the pull rope 490 when it swings in both directions. The flexible conductive belt 410 drives the rectangular frame 420 to move so that the transmission rod 421 swings. When the reset block 422 pulls the slide bar 470 through the pull rope 490, the slide bar 470 can move toward the secondary coil 440. When the wind force is high enough to blow the flexible conductive belt 410 to drive the transmission rod 421 to swing at a large enough angle, the flexible conductive belt 410 will be elongated and its width will be reduced due to the tension. At the same time, the reset block 422 can pull the slide bar 470 through the pull rope 490 to slide toward the secondary coil 440, so that the incremental coil 480 is electrically connected to the secondary coil 440.

[0062] A guide wheel 491 is rotatably connected to the base 110 , and the guide wheel 491 provides guidance for the pull rope 490 , so that the pulling force direction of the pull rope 490 can be changed to tend to the axial direction of the slide rod 470 , so as to apply pulling force to the slide rod 470 .

[0063] The current transmission mechanism 400 conducts the current of the lightning arrester 120 by combining the flexible conductive tape 410 and electromagnetic induction coupling, thereby improving the stability of current transmission.

[0064] The incremental coil 480 is separated from the secondary coil 440 in the initial state. When the flexible conductive band 410 is deformed excessively by the wind, the incremental coil 480 moves and makes electrical contact with the secondary coil 440. When lightning protection is no longer required subsequently, a reset mechanism 500 is provided to reset the secondary coil 440. The reset mechanism 500 is used to push the incremental coil 480 to reset, and includes an upper wedge block 510 and a lower wedge block 520. The upper wedge block 510 moves up and down synchronously with the photovoltaic panel 152. The lower wedge block 520 slides horizontally in the first wedge block 260. A push rod 530 is connected to the lower wedge block 520, and a reset spring 540 is connected between the lower wedge block 520 and the first wedge block 260. When the upper wedge block 510 moves up, it moves away from the lower wedge block 520. At this time, the reset spring 540 pulls the lower wedge block 520 to reset, so that the push rod 530 approaches and pushes the skeleton of the incremental coil 480, making the incremental coil 480 reset. During a thunderstorm, the upper wedge block 510 moves down, pushing the lower wedge block 520 to move away from the incremental coil 480, so that the subsequent movement of the incremental coil 480 is not interfered with.

[0065] The upper wedge block 510 is fixedly connected to the second wedge block 270. The second wedge block 270 is connected to the first ring 140. When the first ring 140 moves vertically, it drives the second wedge block 270 to move synchronously.

[0066] As Figures 1 - 9 shown, the installation structure further includes a support mechanism 100 and a storage mechanism 200 provided on the support mechanism 100. The support mechanism 100 includes a base 110. A lightning arrester 120 is connected to the base 110. A hydraulic rod 130 is connected inside the base 110. The top of the hydraulic rod 130 is connected to a first ring 140. Two rotating shafts 150 are radially symmetrically connected to the first ring 140. A gear 151 and a photovoltaic panel 152 are connected to the rotating shafts 150. A second ring 160 and a third ring 162 are slidably connected to the lightning arrester 120. A rack 161 meshing with the gear 151 is connected between the second ring 160 and the third ring 162. An elastic ball 170 is connected to the middle of the hydraulic rod 130. When the hydraulic rod 130 shortens, the first ring 140 moves down, so that the gear 151 rolls on the rack 161, and thus the photovoltaic panel 152 runs from the horizontal state to the vertical state. When the hydraulic rod 130 continues to shorten, the elastic ball 170 pushes the second ring 160 down, so that the rack 161 and the gear 151 move down synchronously, so that the photovoltaic panel 152 moves down in the vertical state and is stored in the storage mechanism 200.

[0067] The base 110 is installed on the roof top, and the lightning arrester 120 is fixedly installed on the base 110. When lightning protection is not required, the hydraulic rod 130 is in the extended state. At this time, the second ring 160 is at the highest point position inside the base 110, and the first ring 140 is also pushed to the highest position by the hydraulic rod 130. At this time, the photovoltaic panel 152 is in a horizontal state, so that it can receive sunlight for energy storage. If there is a thunderstorm, the hydraulic rod 130 is controlled to shorten. The hydraulic rod 130 penetrates through the second ring 160, so that it can slide relative to the second ring 160 at the initial stage of the shortening of the hydraulic rod 130. At this time, the first ring 140 can move downward relative to the rack 161, and then the gear 151 rolls on the rack 161, so that the rotating shaft 150 rotates and drives the photovoltaic panel 152 to flip. After the photovoltaic panel 152 flips to the vertical state, the elastic ball 170 can abut against the second ring 160. Subsequently, the hydraulic rod 130 can drive the second ring 160 to move downward. At this time, the second ring 160 drives the rack 161 and the gear 151 to move downward synchronously, so that the photovoltaic panel 152 enters the storage mechanism 200 in the vertical state, preventing the photovoltaic panel 152 from being struck by lightning. By storing the photovoltaic panel 152 after switching it to the vertical state, the sundries that may fall on the photovoltaic panel 152 can also slide off.

[0068] Regarding the structure of the support mechanism 100, specifically:

[0069] The support mechanism 100 further includes a clamping ball 180. An installation groove cooperating with the clamping ball 180 is opened on the side wall of the second ring 160. A spring is connected between the clamping ball 180 and the second ring 160. A clamping groove cooperating with the clamping ball 180 is opened in the base 110.

[0070] The second ring 160 maintains the relative position stability with the base 110 through the clamping ball 180. The clamping ball 180 is connected to the second ring 160 through a spring. The spring provides a thrust for the clamping of the clamping ball 180. Two groups of clamping grooves cooperating with the clamping ball 180 are opened in the base 110. One of the two groups of clamping grooves is located in the upper part and the other is located in the lower part. When the clamping ball 180 is clamped in the upper clamping groove, the photovoltaic panel 152 is in a horizontal state. When the clamping ball 180 is clamped in the lower clamping groove, the photovoltaic panel 152 is in a vertical state and is stored by the storage mechanism 200. The depth of the lower clamping groove is lower than that of the upper clamping groove.

[0071] In an alternative embodiment of the present embodiment, preferably:

[0072] The support mechanism 100 further includes a ball groove 171 opened on the upper surface of the second ring 160. When the hydraulic rod 130 shortens, the elastic ball 170 can be clamped in the ball groove 171. After the elastic ball 170 is clamped in the ball groove 171, the hydraulic rod 130 continues to shorten, thereby driving the second ring 160 to move downward.

[0073] The elastic ball 170 can undergo elastic deformation. When the hydraulic rod 130 shortens, the elastic ball 170 can deform and enter the ball groove 171. Subsequently, the continuous shortening of the hydraulic rod 130 can push the catch ball 180 on the side wall of the second ring 160 to disengage from the card slot on the base 110 through the elastic ball 170, so that the second ring 160 moves downward, ensuring that the photovoltaic panel 152 enters the storage mechanism 200 in a vertical state;

[0074] When releasing the photovoltaic panel 152, the hydraulic rod 130 elongates. At this time, the elastic ball 170 is still clamped in the ball groove 171, and the catch ball 180 is clamped in the lower card slot in the base 110 with a relatively shallow depth. Therefore, the elongation of the hydraulic rod 130 can drive the second ring 160 to move upward, so that the photovoltaic panel 152 moves out of the storage mechanism 200 in a vertical state. When the second ring 160 moves to the highest stroke position, the hydraulic rod 130 continues to elongate. At this time, the first ring 140 can move upward relative to the rack 161, so that the gear 151 rolls on the rack 161, and the photovoltaic panel 152 swings to a horizontal state.

[0075] Regarding the structure of the storage mechanism 200, specifically:

[0076] The storage mechanism 200 includes a storage groove 201 opened in the base 110. Two stoppers 210 are symmetrically and slidably connected to both sides of the storage groove 201 on the base 110. When the photovoltaic panel 152 moves downward in a vertical state, it can be inserted into the storage groove 201.

[0077] The depth of the storage groove 201 and the sum of the heights of the two stoppers 210 are slightly greater than the height of the photovoltaic panel 152 in the vertical state, so as to ensure that the stored photovoltaic panel 152 is stably protected.

[0078] In an alternative embodiment of the present example, preferably:

[0079] The storage mechanism 200 further includes a wiping cotton 220 connected to the opposite surfaces of the stoppers 210. A pipe 230 for supplying a cleaning agent to the wiping cotton 220 is connected to the stopper 210. When the photovoltaic panel 152 moves downward in a vertical state, it can contact the wiping cotton 220.

[0080] When the photovoltaic panel 152 moves downward, the photovoltaic panel 152 first passes through the gap between the two stoppers 210. At this time, the wiping cotton 220 on the stopper 210 can contact the surface of the photovoltaic panel 152, and then wipe the photovoltaic panel 152. The port of the pipe 230 contacts the wiping cotton 220, and the cleaning agent flowing out of the pipe 230 can be absorbed by the wiping cotton 220, thereby improving the cleaning effect. A tension spring can be connected between the two symmetrically arranged stoppers 210 to ensure that the contact pressure between the wiping cotton 220 and the photovoltaic panel 152 is sufficient.

[0081] In an alternative embodiment of the present example, preferably:

[0082] The storage mechanism 200 further includes a rotating ring 250 rotatable on the first ring 140. A valve 240 is provided on the pipeline 230. The rotating ring 250 is parallel to the valve stem of the valve 240, and the inner wall of the rotating ring 250 abuts against the valve stem of the valve 240. The upper surface of the rotating ring 250 fits against the outer walls of the two rotating shafts 150. The two rotating shafts 150 rotate in opposite directions. Thus, when the photovoltaic panels 152 are driven to rotate to the vertical state, the rotating ring 250 is synchronously driven to rotate.

[0083] As Figure 4 shown, the meshing directions of the two racks 161 and the corresponding gears 151 are different. Thus, when the first ring 140 moves up and down, the rotating shafts 150 rotate in opposite directions, and the two rotating shafts 150 are radially symmetrically arranged on the first ring 140. Thus, when the two rotating shafts 150 rotate, they can drive the rotating ring 250 to rotate. At this time, the rotating ring 250 can drive the valve stem of the valve 240 to rotate, so that the valve 240 opens, and thus the cleaning agent flows.

[0084] The end of the pipeline 230 is connected to a supply tank of the cleaning agent, and the height of this supply tank is relatively high, so that the cleaning agent inside it is discharged through the pipeline 230 by gravity. The contact surfaces between the rotating shafts 150 and the rotating ring 250, and the contact surface between the rotating ring 250 and the valve stem of the valve 240 are all provided with anti-slip patterns or tooth engagement to ensure the stability of the transmission. Here, the valve 240 adopts a butterfly valve or other valves that realize opening and closing by rotating the valve stem.

[0085] In an alternative embodiment of the present example, preferably:

[0086] A first wedge block 260 is connected to the stop block 210, and a second wedge block 270 is connected to the side wall of the first ring 140. When the second wedge block 270 moves down, it can push the first wedge block 260 so that the two stop blocks 210 move away from each other.

[0087] To prevent the cleaning agent on the wiping cotton 220 from flowing to the photovoltaic panel 152 due to the extrusion between the wiping cotton 220 and the photovoltaic panel 152 after the photovoltaic panel 152 stops, when the first ring 140 descends to the lowest position, the second wedge block 270 on the first ring 140 can push the first wedge block 260, so that the two symmetrically arranged stop blocks 210 move away from each other, thus making the wiping cotton 220 away from the photovoltaic panel 152.

[0088] In an alternative embodiment of the present example, preferably:

[0089] A lifting valve 290 is provided at a position where the pipeline 230 is close to the stop block 210. A connecting rod 280 is connected to the base 110, and the connecting rod 280 is connected to the valve stem of the lifting valve 290. When the two stop blocks 210 move away from each other, the connecting rod 280 drives the lifting valve 290 to close.

[0090] When the two blocks 210 move away from each other, the blocks 210 slide synchronously relative to the base 110. At this time, the connecting rod 280 connected to the base 110 can drive the valve stem of the poppet valve 290 to move, thereby closing the poppet valve 290. At this time, the pipeline 230 no longer supplies cleaning agent to the wiping cotton 220.

[0091] Regarding the structure of the protection mechanism 300, specifically:

[0092] The protection mechanism 300 includes a metal cage 310 . The metal cage 310 is connected to the base 110 and the two stoppers 210 . The receiving slot 201 and the gap space between the two stoppers 210 are both located in the metal cage 310 .

[0093] In order to prevent the photovoltaic panel 152 from being struck by lightning, a metal cage 310 is arranged on the block 210 and the base 110. The internal space of the metal cage 310 wraps the storage groove 201 and the gap between the two blocks 210, so that the photovoltaic panel 152 can be located inside the metal cage 310 after being stored, and the lightning current can be discharged through the lightning rod 120 and the metal cage 310, thereby preventing the photovoltaic panel 152 from being struck by lightning.

[0094] The working mechanism of the lightning protection wire installation structure provided in this embodiment is as follows:

[0095] Regarding the structure of the protection mechanism 300, specifically:

[0096] The protection mechanism 300 also includes a cage cover 320, to which a mounting rod 330 is connected, and a swing rod 340 is rotatably connected to the base 110, and the mounting rod 330 is hinged to the end of the swing rod 340, and a lever 350 is connected to one of the stoppers 210. When the two stoppers 210 move away from each other, the lever 350 drives the swing rod 340 to swing so that the cage cover 320 falls.

[0097] After the photovoltaic panel 152 is received in the receiving groove 201, the second wedge 270 of the first ring 140 contacts the first wedge 260 at the same time, and the two symmetrically arranged stoppers 210 move away from each other, so that when the stoppers 210 slide relative to the base 110, the lever 350 can move the swing rod 340 to swing the swing rod 340, and drive the cage cover 320 to close through the mounting rod 330, so that the photovoltaic panel 152 is more comprehensively protected;

[0098] When the photovoltaic panel 152 is released, the photovoltaic panel 152 can directly push open the cage cover 320 .

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A lightning protection wire installation structure for a photovoltaic panel, characterized in that: It comprises a flexible conductive strip (410), a rectangular frame (420), a reset block (422), a base (110), a lightning receptor (120) and a metal cage (310); The flexible conductive belt (410) is inserted into the rectangular frame (420) and is slidably connected to the rectangular frame (420); One end of the flexible conductive tape (410) is connected to the lightning receptor (120), and the other end is connected to the metal cage (310); the metal cage (310) is grounded; A transmission rod (421) is hingedly connected to the base (110), the rectangular frame (420) is connected to the top of the transmission rod (421), and the reset block (422) is connected to the bottom of the transmission rod (421); when wind blows the flexible conductive belt (410) in the thickness direction of the flexible conductive belt (410), the flexible conductive belt (410) is deformed and drives the transmission rod (421) to overcome the gravity of the reset block (422) and swing along the thickness direction of the flexible conductive belt (410); The invention also comprises a primary coil (430) connected to the lightning receptor (120), a secondary coil (440) connected to the metal cage (310), and an incremental coil (480) movable between the primary coil (430) and the secondary coil (440); the primary coil (430) and the secondary coil (440) are coaxial; when the wind blows the flexible conductive tape (410) in the thickness direction of the flexible conductive tape (410) to deform the flexible conductive tape (410), the incremental coil (480) can move to a coaxial position with the secondary coil (440) to increase the number of turns of the secondary coil (440).

2. The lightning protection wire installation structure of the photovoltaic panel according to claim 1, characterized in that: A limiting hole is provided on the rectangular frame (420), and the flexible conductive belt (410) is inserted into the limiting hole with both ends extending out of the limiting hole.

3. The lightning protection wire installation structure of the photovoltaic panel according to claim 1, characterized in that: It also includes a pull rope (490), one end of the pull rope (490) is connected to the reset block (422), and the other end is connected to the base (110); The pull rope (490) is perpendicular to the swinging surface of the rectangular frame (420).

4. The lightning protection wire installation structure of the photovoltaic panel according to claim 3, characterized in that: It also includes a sliding rod (470), wherein the sliding rod (470) is connected to the incremental coil (480) and is slidably mounted on the base (110); The sliding rod (470) moves along its own axis to drive the incremental coil (480) to move.

5. The lightning protection wire installation structure of the photovoltaic panel according to claim 4, characterized in that: Two telescopic rods (450) are symmetrically hinged on both sides of the sliding rod (470), and both ends of the two telescopic rods (450) away from the sliding rod (470) are hinged to the base (110); A force storage spring (460) is sleeved on the telescopic rod (450), and the force storage spring (460) can apply a thrust to the sliding rod (470) when elastically restoring.

6. The lightning protection wire installation structure of the photovoltaic panel according to claim 5, characterized in that: A guide wheel (491) is rotatably connected to the base (110), and the pull rope (490) is transmitted to the guide wheel (491) to change the direction of the pulling force applied by the pull rope (490) to the sliding rod (470).

7. The lightning protection wire installation structure of the photovoltaic panel according to claim 6, characterized in that: Also included is a reset mechanism (500), the reset mechanism (500) comprising an upper wedge block (510), a lower wedge block (520), a push rod (530) and a reset spring (540); The upper wedge block (510) slides vertically on the upper part of the lower wedge block (520). The push rod (530) is fixedly connected to the lower wedge block (520). One end of the return spring (540) is fixedly arranged, and the other end is connected to the lower wedge block (520) for applying a pulling force to the lower wedge block (520). When the upper wedge block (510) moves downward, it can push the lower wedge block (520) to slide away from the incremental coil (480), thereby driving the push rod (530) away from the incremental coil (480). When the upper wedge block (510) moves upward, it can move away from the lower wedge block (520). Thus, the return spring (540) pulls the lower wedge block (520), causing the push rod (530) to approach the incremental coil (480).

8. The lightning protection wire installation structure of the photovoltaic panel according to claim 7, characterized in that: A first ring (140) is slidably arranged vertically on the upper part of the base (110), and a first wedge block (260) is slidably connected to the upper surface. A second wedge block (270) is connected to the side wall of the first ring (140). The upper wedge block (510) is fixedly connected to the second wedge block (270). The lower wedge block (520) is horizontally slidably connected inside the first wedge block (260). A sliding cavity cooperating with the lower wedge block (520) is formed inside the first wedge block (260), and the push rod (530) penetrates and slides through the first wedge block (260).

9. The lightning protection wire installation structure of the photovoltaic panel according to claim 1, characterized in that: A cage cover (320) is hinged to the metal cage (310).

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