Lightning conductor mounting structure of photovoltaic panel

Abstract

The invention relates to the technical field of power electronic component insulation systems, in particular to a lightning conductor mounting structure of a photovoltaic panel, which is used for solving the problem that an existing lightning conductor mounting structure has defects. The structure comprises 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 in sliding connection with the rectangular frame; one end of the flexible conductive band is connected with the lightning arrester, and the other end is connected with the metal cage which is grounded. The reset block is connected to the lower end of the rectangular frame and located below the hinge point of the rectangular frame and the base. The hinge plate can swing around a hinge point in the thickness direction of the flexible conductive band. According to the structure, the stress of the conductive band can be reduced, damage caused by excessive stretching is avoided, damage caused by excessive twisting or repeated bending of the conductive band due to wind power change is avoided, the reset block enables the rectangular frame to be kept or recovered to be in a vertical state under the action of self gravity, the conductive band is kept in a windless state, and twisting of the conductive band is avoided.

Description

Technical Field

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

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

[0003] Power electronic components such as metal oxide semiconductor field effect transistors (MOSFET) and insulated gate bipolar transistor (IGBT) chips and modules play an extremely critical role in photovoltaic systems.

[0004] They are widely used in core equipment such as photovoltaic inverters, 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 outdoors in open 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 MOSFET, IGBT chips and modules, leading to failure or even paralysis of the entire photovoltaic system.

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

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

[0009] In order to ensure the expansion and contraction of the conductive tape, the conductive tape cannot be fixed. In windy weather, the conductive tape is prone to excessive stretching or repeated twisting, causing damage to the conductive tape. This will not only reduce the conductivity of the lightning conductor, but may also cause the conductor to break, making the lightning protection system invalid and unable to provide reliable lightning protection for power electronic components such as MOSFET and IGBT.

[0010] On the other hand, the existing lightning conductor installation structure has insufficient limiting and guiding functions for the conductor. It is unable to effectively limit the torsion angle and direction while ensuring the normal extension and contraction of the lightning conductor, causing the lightning conductor to be unevenly stressed when the wind changes, further increasing the risk of damage. Summary of the invention

[0011] The invention provides a lightning protection wire installation structure for a photovoltaic panel, so as to solve the problem that the installation structure of the existing lightning protection wire has defects.

[0012] In order to alleviate the above technical problems, the technical solution provided by the present invention is: 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; The flexible conductive belt is inserted into the rectangular frame and is slidably connected to the rectangular frame; 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; 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; The hinge plate can swing around the hinge point along the thickness direction of the flexible conductive belt.

[0013] 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.

[0014] 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; The pull rope is perpendicular to the swing surface of the rectangular frame.

[0015] 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.

[0016] Furthermore, it also includes a slide bar, which is connected to the incremental coil and slidably mounted on the base; The slide bar moves along its own axis to drive the incremental coil to move.

[0017] 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; 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.

[0018] 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.

[0019] Furthermore, it also includes a reset mechanism, which includes an upper wedge block, a lower wedge block, a push rod and a reset spring; 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; When the upper wedge moves downward, it can push the lower wedge to slide in a direction away from the incremental coil, thereby driving the push rod away from the incremental coil; The upper wedge block can move away from the lower wedge block when moving upward, so that the return spring pulls the lower wedge block, so that the push rod is close to the incremental coil.

[0020] Furthermore, a first ring is vertically slidably provided on the upper part of the base, 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 horizontally slidably connected to the inside of the first wedge block, a sliding cavity cooperating with the lower wedge block is opened in the first wedge block, and the push rod passes through and slides on the first wedge block.

[0021] Furthermore, a cage cover is hinged on the metal cage.

[0022] The beneficial effects of the present invention are analyzed as follows: A lightning conductor installation structure for a photovoltaic panel comprises a flexible conductive tape, a rectangular frame, a reset block, a base and a metal cage; the flexible conductive tape is inserted into the rectangular frame and slidably connected to the rectangular frame; one end of the flexible conductive tape is connected to a lightning receptor, 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 tape.

[0023] The cross-section of the limiting hole is consistent with that of the conductive belt, which can limit the conductive belt and prevent the conductive belt from twisting in the limiting hole without affecting the elongation of the conductive belt. When the wind blows along the thickness direction of the conductive belt and the wind force is strong, the conductive belt swings and drives the rectangular frame to swing, thereby reducing the windward area, reducing the force on the conductive belt, and avoiding damage caused by excessive stretching. At the same time, the rectangular frame can limit the torsion angle and direction of the conductive belt to avoid damage caused by excessive twisting or repeated bending of the conductive belt due to changes in wind force. The reset block maintains or restores the vertical state of the rectangular frame under the action of its own gravity, thereby keeping the conductive belt in a windless state and avoiding twisting of the conductive belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 The structural diagram of part A in the figure; Figure 3 It is a schematic diagram of the structure of the photovoltaic panel of the present invention when it is stored; Figure 4 It is a schematic diagram of the structure of the second ring of the present invention; Figure 5 It is a structural schematic diagram of the swivel of the present invention; Figure 6 For the present invention Figure 5 The structural diagram of part B; Figure 7 It is a schematic diagram of the structure of the first wedge block of the present invention; Figure 8 It is a structural schematic diagram of the cage cover of the present invention; Fig. 9 It is a schematic diagram of the structure of the metal cage of the present invention; Fig.10 It is a structural schematic diagram of the current transmission mechanism of the present invention; Fig.11 For the present invention Fig.10 Schematic diagram of the structure of part C; Fig.12 Schematic diagram of the structure of the reset mechanism of the present invention Fig.13 It is a structural schematic diagram of the reset block of the present invention.

[0026] icon: 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, ball clamp; 200, storage mechanism; 201, storage groove; 210, stopper; 220, wipe cotton; 230, pipeline; 240, valve; 250, rotating ring; 260, first wedge block; 270, second wedge block; 280, connecting rod; 290, lifting Valve; 300, protective mechanism; 310, metal cage; 320, cage cover; 330, mounting rod; 340, rocker arm; 350, lever; 400, current transmission mechanism; 410, flexible conductive tape; 420, rectangular frame; 421, transmission rod; 422, reset block; 430, primary coil; 440, secondary coil; 450, telescopic rod; 460, force storage spring; 470, slide rod; 480, incremental coil; 490, pull rope; 491, guide wheel; 500, reset mechanism; 510, upper wedge block; 520, lower wedge block; 530, push rod; 540, reset spring. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Examples, such as Figure 9-12 As shown, a lightning conductor installation structure for a photovoltaic panel is applied to a high-altitude photovoltaic panel 152, including a lightning rod 120 and a metal cage 310. The lightning rod 120 is electrically connected to the metal cage 310 through a flexible conductive tape 410, a primary coil 430 is also electrically connected to the lightning rod 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 down conductor. After lightning strikes the lightning rod 120, the current is conducted through the flexible conductive tape 410 and the electromagnetic induction coupling cooperation of the primary coil 430 and the secondary coil 440, thereby avoiding the problem of poor lightning protection effect caused by a single conductive means if a problem occurs; In addition, if strong winds occur during thunderstorms, the wind will cause the flexible conductive tape 410 to deform. At this time, the length of the flexible conductive tape 410 increases and the width decreases, thereby increasing the resistance. The conductive efficiency of the flexible conductive tape 410 decreases. In order to ensure the transmission of current, the number of turns of the secondary coil 440 increases to facilitate the current transmission between the lightning arrester 120 and the metal cage 310.

[0032] A transmission rod 421 is hinged on the base 110, a rectangular frame 420 is connected to the top of the transmission rod 421, and a reset block 422 is connected to the bottom. When the 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 to swing. At this time, the flexible conductive belt 410 can tend to be parallel to the wind direction, thereby reducing the wind receiving area to reduce the deformation when the wind blows. When the wind is reduced or the wind disappears, the reset block 422 moves downward by gravity to make the transmission rod 421 tend to be vertical, so that the flexible conductive belt 410 returns to its original state; An incremental coil 480 is radially slidably arranged 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 to the front of the secondary coil 440 and electrically contacts the secondary coil 440, so that the number of turns of the secondary coil 440 increases. 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. 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. 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 .

[0033] 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.

[0034] The incremental coil 480 is separated from the secondary coil 440 in the initial state. When the flexible conductive belt 410 is excessively deformed by the wind, the incremental coil 480 moves and electrically contacts the secondary coil 440. When lightning protection is not required later, in order to reset the secondary coil 440, a reset mechanism 500 is also provided. 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 rises and falls synchronously with the photovoltaic panel 152, and 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 return spring 540 is connected between the lower wedge block 520 and the first wedge block 260. When the upper wedge block 510 moves upward, it moves away from the lower wedge block 520. At this time, the return 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, so that the incremental coil 480 is reset. In thunderstorms, the upper wedge block 510 moves downward, 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.

[0035] The upper wedge block 510 is fixedly connected to the second wedge block 270 , and 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.

[0036] like Figure 1-Figure 9 As shown, the installation structure also includes a support mechanism 100 and a storage mechanism 200 arranged on the support mechanism 100. The support mechanism 100 includes a base 110, and a lightning receptor 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. The rotating shaft 150 is connected to a gear 151 and a photovoltaic panel 152. The lightning receptor 120 is slidably connected to a second ring 160 and a third ring 162. The second ring A rack 161 meshing with the gear 151 is connected between the ring 160 and the third ring 162, and an elastic ball 170 is connected to the middle of the hydraulic rod 130. When the hydraulic rod 130 is shortened, the first ring 140 moves downward so that the gear 151 rolls on the rack 161, so that the photovoltaic panel 152 runs from a horizontal state to a vertical state; when the hydraulic rod 130 continues to shorten, the elastic ball 170 pushes the second ring 160 to move downward, so that the rack 161 and the gear 151 move downward synchronously, so that the photovoltaic panel 152 moves down in a vertical state and is stored in the storage mechanism 200.

[0037] The base 110 is installed on the roof, and the lightning receptor 120 is fixedly installed on the base 110. When there is no need for lightning protection, the hydraulic rod 130 is in an extended state. At this time, the second ring 160 is at the highest point in the base 110, and the first ring 140 is also pushed to the highest point 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 a thunderstorm occurs, the hydraulic rod 130 is controlled to be shortened, and the hydraulic rod 130 passes through the second ring 160, so that it can slide down relative to the second ring 160 at the initial stage of shortening the hydraulic rod 130. At this time, the first ring 140 can be lowered relative to the rack 161. The gear 151 moves downward, thereby causing the gear 151 to roll on the rack 161, thereby rotating the shaft 150 and driving the photovoltaic panel 152 to flip over. After the photovoltaic panel 152 flips to a vertical state, the elastic ball 170 can abut against the second ring 160, and then 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 a vertical state to prevent the photovoltaic panel 152 from being struck by lightning. By switching the photovoltaic panel 152 to a vertical state and then storing it, debris that may fall on the photovoltaic panel 152 can also slide off.

[0038] Regarding the structure of the support mechanism 100, specifically: The support mechanism 100 also includes a locking ball 180 . A mounting groove cooperating with the locking ball 180 is provided on the side wall of the second ring 160 . A spring is connected between the locking ball 180 and the second ring 160 . A locking groove cooperating with the locking ball 180 is provided in the base 110 .

[0039] The second ring 160 maintains relative position stability with the base 110 through the locking ball 180. The locking ball 180 is connected to the second ring 160 through a spring. The spring provides thrust for the locking of the locking ball 180. Two groups of slots cooperating with the locking ball 180 are provided in the base 110. One of the two groups of slots is located at the upper part and the other is located at the lower part. When the locking ball 180 is locked in the upper slot, the photovoltaic panel 152 is in a horizontal state. When the locking ball 180 is locked in the lower slot, the photovoltaic panel 152 is in a vertical state and is stored by the storage mechanism 200. The depth of the lower slot is lower than that of the upper slot.

[0040] Among the optional methods of this embodiment, the more preferred ones are: The support mechanism 100 also includes a ball groove 171 opened on the upper surface of the second ring 160. When the hydraulic rod 130 is shortened, the elastic ball 170 can be engaged in the ball groove 171. After the elastic ball 170 is engaged in the ball groove 171, the hydraulic rod 130 continues to shorten, thereby driving the second ring 160 to move downward.

[0041] The elastic ball 170 can be elastically deformed. When the hydraulic rod 130 is shortened, the elastic ball 170 can be deformed and enter the ball groove 171. Then, the continued shortening of the hydraulic rod 130 can push the clamping ball 180 on the side wall of the second ring 160 to disengage from the clamping groove 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; When the photovoltaic panel 152 is released, the hydraulic rod 130 extends. At this time, the elastic ball 170 is still stuck in the ball groove 171, and the lower groove in the base 110 where the stuck ball 180 is stuck is shallow. Therefore, the extension 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 extend. 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.

[0042] Regarding the structure of the storage mechanism 200, specifically: The storage mechanism 200 includes a storage slot 201 opened on the base 110. Two blocks 210 are symmetrically slidably connected on both sides of the storage slot 201 on the base 110. The photovoltaic panel 152 can be inserted into the storage slot 201 when it moves down in a vertical state.

[0043] The depth of the storage groove 201 and the height of the two stoppers 210 are slightly greater than the height of the photovoltaic panel 152 in the vertical state, thereby ensuring that the stored photovoltaic panel 152 is stably protected.

[0044] Among the optional methods of this embodiment, the more preferred ones are: The storage mechanism 200 also includes a wiping cotton 220 connected to the opposite surface of the stopper 210. The stopper 210 is connected to a pipe 230 for supplying a cleaning agent to the wiping cotton 220. The photovoltaic panel 152 can contact the wiping cotton 220 when it moves down in a vertical state.

[0045] When the photovoltaic panel 152 moves downward, the photovoltaic panel 152 first passes through the gap between the two blocks 210. At this time, the wiping cotton 220 on the block 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 blocks 210 to ensure that the contact pressure between the wiping cotton 220 and the photovoltaic panel 152 is sufficient.

[0046] Among the optional methods of this embodiment, the more preferred ones are: The storage mechanism 200 also includes a swivel 250 that rotates on the first ring 140. A valve 240 is provided on the pipeline 230. The swivel 250 is parallel to the valve stem of the valve 240, and the inner wall of the swivel 250 abuts against the valve stem of the valve 240. The upper surface of the swivel 250 is in contact with the outer walls of the two rotating shafts 150. The two rotating shafts 150 rotate in opposite directions, so that when the photovoltaic panel 152 is driven to rotate to a vertical state, the swivel 250 is synchronously driven to rotate.

[0047] like Figure 4 As shown, the meshing directions of the two racks 161 and the corresponding gears 151 are different, so that when the first ring 140 moves up and down, the rotation direction of the rotating shaft 150 is opposite, and the two rotating shafts 150 are radially symmetrically arranged on the first ring 140, so that when the two rotating shafts 150 rotate, they can drive the rotating ring 250 to rotate, and at this time, the rotating ring 250 can drive the valve stem of the valve 240 to rotate, so that the valve 240 is opened, so that the cleaning agent flows; The end of the pipe 230 is connected to a supply box for the cleaning agent, and the height of this supply box is relatively high, so that the cleaning agent inside it is discharged through the pipe 230 by gravity. The contact surface between the rotating shaft 150 and the swivel 250, as well as the contact surface between the swivel 250 and the valve stem of the valve 240, are both provided with anti-slip grooves or teeth to ensure the stability of the transmission. The valve 240 here adopts a butterfly valve or the like that realizes opening and closing by rotating the valve stem.

[0048] Among the optional methods of this embodiment, the more preferred ones are: The stopper 210 is connected to a first wedge block 260 , and the side wall of the first ring 140 is connected to a second wedge block 270 . When the second wedge block 270 moves downward, it can push the first wedge block 260 to move the two stoppers 210 away from each other.

[0049] In order to avoid the squeezing between the wiping cotton 220 and the photovoltaic panel 152 so that the cleaning agent on the wiping cotton 220 flows to the photovoltaic panel 152 after the photovoltaic panel 152 is stationary, when the first ring 140 drops 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 blocks 210 move away from each other, thereby making the wiping cotton 220 away from the photovoltaic panel 152.

[0050] Among the optional methods of this embodiment, the more preferred ones are: A lifting valve 290 is provided near the stopper 210 of the pipeline 230, and a connecting rod 280 is connected to the base 110. The connecting rod 280 is connected to the valve stem of the lifting valve 290. When the two stoppers 210 move away from each other, the connecting rod 280 drives the lifting valve 290 to close.

[0051] 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.

[0052] Regarding the structure of the protection mechanism 300, specifically: 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 .

[0053] 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.

[0054] The working mechanism of the lightning protection wire installation structure provided in this embodiment is as follows: Regarding the structure of the protection mechanism 300, specifically: 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.

[0055] 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; When the photovoltaic panel 152 is released, the photovoltaic panel 152 can directly push open the cage cover 320 .

[0056] 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 it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, 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 embodiments of the present invention.

Claims

1. A lightning conductor 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; The rectangular frame (420) is hingedly mounted on the base (110), and the reset block (422) is connected to the lower end of the rectangular frame (420) and is located below the hinge point between the rectangular frame (420) and the base (110); The hinge plate can swing around the hinge point along the thickness direction of the flexible conductive belt (410).

2. The photovoltaic panel lightning protection wire installation structure 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 photovoltaic panel lightning protection wire installation structure 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 photovoltaic panel lightning protection wire installation structure according to claim 3, characterized in that: 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), wherein the primary coil (430) is coaxial with the secondary coil (440), and the incremental coil (480) can be moved to a coaxial position with the secondary coil (440) to increase the number of turns of the secondary coil (440).

5. The photovoltaic panel lightning protection wire installation structure according to claim 4, 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.

6. The photovoltaic panel lightning protection wire installation structure according to claim 5, 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.

7. The photovoltaic panel lightning protection wire installation structure according to claim 6, 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).

8. The photovoltaic panel lightning protection wire installation structure according to claim 7, 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 in a direction away from the incremental coil (480), thereby driving the push rod (530) away from the incremental coil (480); The upper wedge block (510) can move away from the lower wedge block (520) when moving upward, so that the return spring (540) pulls the lower wedge block (520), causing the push rod (530) to approach the incremental coil (480).

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

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

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