Photovoltaic combiner box for photovoltaic inverter

Abstract

The invention relates to the field of photovoltaic technology, in particular to a photovoltaic combiner box for a photovoltaic inverter, which comprises a photovoltaic combiner box, a bracket, a signal receiver, a controller, a motor, a jack, a first brake rod, a second brake rod, a third brake rod, a power gear, a measuring assembly, a limiting assembly, a lifting device and a linkage assembly. Through mutual cooperation of the support, the signal receiver, the controller, the motor, the jack, the first brake rod, the second brake rod, the third brake rod, the power gear, the measuring assembly, the limiting assembly, the lifting device and the linkage assembly. The technical problem of how to realize the automation of the installation process of the photovoltaic combiner box is solved.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and in particular to a photovoltaic combiner box for a photovoltaic inverter. Background Art

[0002] The combiner box is a wiring device that ensures the orderly connection and combiner function of photovoltaic modules in the photovoltaic power generation system. This device can ensure that the photovoltaic system is easy to cut off the circuit during maintenance and inspection, and reduce the scope of power outage when the photovoltaic system fails.

[0003] A combiner box means that users can connect a certain number of photovoltaic cells of the same specifications in series to form photovoltaic strings, and then connect several photovoltaic strings in parallel to the photovoltaic combiner box. After the photovoltaics are combined in the photovoltaic combiner box, they are used together through a controller, a DC distribution cabinet, a photovoltaic inverter, and an AC distribution cabinet to form a complete photovoltaic power generation system and achieve grid connection with the city power grid.

[0004] At present, most photovoltaic combiner boxes need to be installed at a certain safe distance from the ground, and the installation requires the use of manpower and other auxiliary machinery to cooperate with each other, which is extremely inconvenient. Summary of the invention

[0005] The present invention aims to solve the technical problem of how to realize the automation of the installation process of a photovoltaic combiner box, and provides a photovoltaic combiner box for a photovoltaic inverter and a working method thereof.

[0006] The technical solution adopted by the present invention to solve the technical problem is: A photovoltaic combiner box for a photovoltaic inverter includes a photovoltaic combiner box, a bracket, a signal receiver, a controller, a motor, a jack, a first brake rod, a second brake rod, a third brake rod, a power gear, a measuring assembly, a limit assembly, a lifting device, and a linkage assembly. The photovoltaic combiner box is arranged on the ground. The bracket is arranged on one side of the photovoltaic combiner box and is fixedly connected to the photovoltaic combiner box. The controller is arranged on one side of the bracket and is fixedly connected to the bracket. The signal receiver is arranged on one side of the photovoltaic combiner box and is fixedly connected to the photovoltaic combiner box and is connected to the controller signal. The lifting device is arranged on the bracket and is fixedly connected to the bracket. The motor is horizontally arranged on one side of the lifting device and is fixedly connected to the bracket and is electrically connected to the controller. The linkage assembly is arranged between the motor and the lifting device and is connected to the lifting device drivingly and is fixedly connected to the bracket. The power gear is coaxially connected to the motor shaft and is connected to the linkage assembly drivingly. The axis of the jack output end is perpendicular to the axis of the motor shaft, and the jack is arranged below the motor and is fixedly connected to the bracket. One end of the first brake rod is fixedly connected to the input end of the jack. The second brake rod is a hollow tube, one end of which is sleeved on the end of the first brake rod away from the jack. The second brake rod is slidably connected to the first brake rod and is driven by the linkage assembly. The axis of the third brake rod is perpendicular to the axis of the output end of the jack. The third brake rod is tilted between the jack and the lifting device. The lower end is fixedly connected to the output end of the jack, and the upper end is driven by the lifting device. The measuring component is arranged on the side of the linkage assembly away from the power gear and is driven by the linkage assembly. The limit assembly is on one side of the lifting device, close to the linkage assembly, and is driven by the measuring component.

[0007] According to the above technical solution, when it is necessary to install the photovoltaic junction box on a high pole, first move the bracket so that the high pole is located in the lifting device, and then adjust the moving distance threshold of the lifting device through the measuring component. Use the mobile terminal to send a signal to the signal receiver, and the signal receiver transmits the signal to the controller, and the controller controls the motor to start. The motor drives the power gear to rotate, and the power gear drives the linkage component to start, and the linkage component drives the second brake rod to move cyclically. The second brake rod slides back and forth with the first brake rod while driving the first brake rod to move back and forth, and the first brake rod cyclically compresses the input end of the jack. The output end of the jack extends and drives the lifting device to clamp the high pole through the third brake rod. When the lifting device applies a certain pressure to the high pole, the linkage component no longer applies a driving force to the second brake rod, and the output end of the jack is fixed. Then, the linkage component automatically drives the lifting device to drive the photovoltaic junction box to climb above the high pole through the bracket, realizing the automatic installation process of the photovoltaic junction box and the high pole. When the lifting device reaches the set threshold, the linkage component drives the limit component to fix the lifting device and transmits a signal to the controller. The controller controls the motor to stop rotating, and the lifting device is fixed at the specified position of the high pole, that is, the photovoltaic combiner box is fixed at the specified height of the high pole. When the photovoltaic combiner box needs to be repaired, a signal is sent to the signal receiver through the mobile terminal, and the signal receiver transmits the signal to the controller. The controller controls the motor to reverse, and the motor drives the power gear to rotate, and the power gear drives the linkage component to start. The linkage component drives the limit component to disengage from the lifting device, and at the same time drives the lifting device to start. The lifting device moves downward along the high pole and drives the photovoltaic combiner box to move downward through the bracket. Through the setting of the bracket, signal receiver, controller, motor, jack, first brake rod, second brake rod, third brake rod, power gear, measurement component, limit component, lifting device, and linkage component, the automatic fixing and lifting process of the photovoltaic combiner box is realized, the use of manpower and material resources is reduced, and the practicality of the photovoltaic combiner box is fully improved.

[0008] Preferably, the linkage assembly includes a first limiting rod, a second limiting rod, a first limiting groove, a second limiting groove, a first inner gear ring, a second inner gear ring, a plurality of first teeth, a plurality of second teeth, a first screw, a fourth brake rod, and a linkage gear. The axis of the first screw is parallel to the axis of the power gear, the first screw is between the power gear and the lifting device, and is above the power gear, and the end of the first screw away from the power gear is respectively connected to the lifting device and the measuring assembly. The axis of the fourth brake rod is perpendicular to the axis of the jack output end and the axis of the first screw, respectively. One end of the fourth brake rod is rotatably connected to the top end of the third brake rod, and its rotation direction is perpendicular to its axis, and the other end of the fourth brake rod is slidably connected to the first screw. One end of the first limiting rod is a T-shaped head, the axis of the first limiting rod is parallel to the axis of the power gear, the first limiting rod is arranged between the lifting device and the power gear, and the end of the first limiting rod that is not a T-shaped head is fixedly connected to the bracket. One end of the second limiting rod is a T-shaped head, the axis of the second limiting rod is parallel to the axis of the first limiting rod, the second limiting rod is located above the first limiting rod, and the end of the second limiting rod that is not a T-shaped head is fixedly connected to the bracket. The axis of the first inner gear ring is parallel to the axis of the power gear and is located above the axis of the power gear. The first inner gear ring surrounds the power gear and the periphery of the first screw rod, and the side of the first inner gear ring close to the lifting device is slidably connected to the T-shaped head of the first limiting rod. The axis of the second inner gear ring is coaxially sleeved in the first inner gear ring, and is slidably connected to the first inner gear ring and meshed with the power gear. The side of the second inner gear ring is slidably connected to the T-shaped head of the second limiting rod. A plurality of first teeth are respectively arranged on the outer ring of the second inner gear ring, and are respectively rotatably connected to the second inner gear ring through a torsion spring, and are respectively meshed with the first inner gear ring, and the rotation directions of the plurality of first teeth are respectively parallel to the axis of the second inner gear ring. The first limiting groove is arranged at the connection between the T-shaped head of the first limiting rod and the first inner gear ring. The second limiting groove is arranged at the connection between the T-shaped head of the second limiting rod and the second inner gear ring. A plurality of second teeth are respectively arranged on the outer ring of the first inner gear ring and are respectively fixedly connected to the first inner gear ring. The axis of the linkage gear is parallel to the axis of the first inner gear ring, and is rotationally connected to the bracket and meshes with the plurality of second teeth. The linkage gear is rotationally connected to the end of the second brake rod away from the first brake rod at the side edge away from the motor. The rotation axis of the linkage gear coincides with its axis.

[0009] According to the above technical solution, the rotating power gear drives the second inner gear ring to rotate, the second inner gear ring drives the first inner gear ring to rotate through a plurality of first teeth, the first inner gear ring drives the linkage gear to rotate through a plurality of second teeth, and the linkage gear drives the second brake rod to move cyclically. The second brake rod reciprocates with the first brake rod while driving the first brake rod to move reciprocally. The first brake rod reciprocates to compress the input end of the jack, the output end of the jack extends and drives the lifting device to clamp the high pole through the third brake rod, and the third brake rod drives the first screw rod to move in the second inner gear ring through the fourth brake rod. When the lifting device clamps the high pole and applies a certain pressure to the high pole, the reaction force applied by the input end of the jack to the first inner gear ring through the first brake rod, the second brake rod, the linkage gear, and the plurality of second teeth gradually increases, the plurality of first teeth torsion springs are compressed, the plurality of first teeth and the first inner gear ring are no longer meshed, the second inner gear ring cannot apply a driving force to the first inner gear ring, the output of the jack is fixed, and the pressure provided by the output end of the jack is used to apply sufficient clamping force to the high pole to ensure the stability of the photovoltaic junction box and the high pole. At this time, the first screw is meshed with the second inner gear ring, the second inner gear ring drives the first screw to rotate, and the first screw drives the lifting device to rise, realizing the automatic fixation and automatic climbing process of the photovoltaic junction box and the high pole. By setting the first limit rod, the second limit rod, the first limit groove, the second limit groove, the first inner gear ring, the second inner gear ring, a plurality of first teeth, a plurality of second teeth, the first screw rod, the fourth brake rod, and the linkage gear, the automatic fixation and automatic climbing process of the photovoltaic junction box and the high pole and the automatic switching of the two processes are realized, further improving the practicality of the photovoltaic junction box.

[0010] Preferably, the lifting device comprises a first roller, a first gear, a second gear, a second screw, a sleeve, an elastic compression rod, a fixed rod, a first short rod, and an auxiliary component. The sleeve axis is perpendicular to the first screw axis, and the sleeve is transversely arranged on the side of the linkage component away from the motor and fixedly connected to the bracket. The second screw is arranged in the sleeve, and its axis coincides with the sleeve axis, and its two ends extend to the outside of the sleeve respectively. The second screw is slidably connected to the sleeve, and one end of the second screw is threadedly connected to the first screw and fixedly connected to the third brake rod. The auxiliary component is arranged at the end of the sleeve away from the first screw, and is drivingly connected to the second screw and fixedly connected to the sleeve. The middle part of the elastic compression rod is retractable, and the axis of the elastic compression rod is parallel to the axis of the second screw. The elastic compression rod is arranged at the end of the sleeve away from the first screw, and the sleeve is fixedly connected through the bracket, and is on the same side of the sleeve as the auxiliary component. The axis of the fixed rod is perpendicularly intersected with the axis of the second screw and the axis of the elastic compression rod respectively, and one end of the fixed rod is fixedly connected to the end of the elastic compression rod away from the sleeve, and the other end is rotatably connected to the screw through a bearing. The axis of the first short rod is perpendicularly intersected with the axis of the second screw and the axis of the elastic compression rod respectively. The first short rod is rotatably connected to the end of the elastic compression rod away from the sleeve, and its rotation axis coincides with its axis. The first short rod is arranged away from the auxiliary component. The middle of the side of the first roller is concave, and the first roller is coaxially connected to the end of the first short rod away from the second screw. The first gear is coaxially connected to the end of the first short rod close to the second screw. The second gear is coaxially connected to the end of the second screw close to the first gear and meshes with the first gear.

[0011] According to the above technical solution, the high pole is between the first roller and the auxiliary component, the moving third brake rod drives the second screw to move, and the second screw drives the first roller to move toward the auxiliary component through the fixed rod, the first gear and the first short rod, until the first roller contacts the high pole, and after a certain pressure is applied to the high pole by the auxiliary component, the output end of the jack no longer moves. Then the rotating first screw drives the second screw to rotate, the second screw drives the second gear to rotate, the second gear drives the first gear to rotate, and the first gear drives the first roller to rotate through the first short rod. At the same time, the rotating second screw drives the auxiliary component to start, and the first roller and the auxiliary component climb upward along the side of the high pole together, realizing the working process of effectively clamping the high pole and stably climbing it.

[0012] Preferably, the auxiliary component includes a second short rod, a third short rod, a second roller, a third gear, a fourth gear, and a drive slot. The axis of the second short rod is perpendicular to the axis of the sleeve and parallel to the axis of the first short rod, and is on the same side of the sleeve as the first short rod. One end of the second short rod is rotatably connected to the sleeve, and its rotation axis coincides with its axis. The second roller has the same shape and size as the first roller, and its center geometric point is on the same straight line as the center geometric point of the first roller. The second roller is coaxially connected to one end of the second short rod. The third gear is coaxially connected to one end of the second short rod and is arranged close to the sleeve. The axis of the third short rod is parallel to the axis of the sleeve, and the third short rod is rotatably connected to the bracket and is between the second screw and the third gear. The fourth gear is coaxially connected to one end of the third short rod, and passes through the side wall of the sleeve, and is meshed with the second screw and the third gear respectively. The drive slot is arranged at the place where the fourth gear passes through the side wall of the sleeve.

[0013] According to the above technical solution, the side of the first roller contacts the side of the high pole and assists the first roller in clamping the high pole. The rotating second screw drives the fourth gear to rotate, and the fourth gear drives the third gear to rotate. The third gear drives the second roller to rotate synchronously with the first roller through the second short rod, and drives the photovoltaic combiner box to move upward along the side of the high pole together with the first roller.

[0014] Preferably, the measuring assembly comprises a limit block, a first slide groove, a second slide groove, a limit ring, two third limit grooves, two first springs, a first slide rod, a third slide groove, and a second slide rod. The limit block is arranged on the side of the second screw rod away from the motor and is slidably connected to the bracket. The two first springs are respectively arranged vertically at the top of the limit block, and their lower ends are respectively fixedly connected to the limit block, and their upper ends are respectively fixedly connected to the bracket. The first slide groove is transversely arranged in the limit block and passes through the limit block. The axis of the first slide rod coincides with the axis of the first screw rod, the diameter of the first slide rod is smaller than the diameter of the first screw rod, the first slide rod is in the first slide groove, and its two ends extend to the outside of the first slide groove respectively, one end of the first slide rod is slidably connected to the first screw rod, and its sliding direction coincides with its axis. The limit ring is coaxially sleeved on the first slide rod, and is fixedly connected to the first slide rod, and is slidably connected to the limit block. The second slide groove is arranged at the connection between the first slide rod and the first screw rod. The two third limit grooves are respectively arranged at the connection between the limit ring and the limit block, and are respectively in the first slide groove. The axis of the second slide bar coincides with the axis of the first slide bar, the second slide bar is arranged inside the first slide bar, and its two ends extend to the outside of the first slide bar respectively, the second slide bar is slidably connected to the first slide bar, one end of the second slide bar is fixedly connected to the first screw rod, and a measuring mark is arranged on the side of the second slide bar. The third slide groove is arranged at the connection between the second slide bar and the first slide bar.

[0015] According to the above technical solution, when adjusting the threshold of the installation height of the photovoltaic junction box, first push the limit block upwards. The limit block drives the first slide bar to move upwards, and the first slide bar drives the second slide bar and the first screw bar to move upwards respectively, and the first screw bar and the second screw bar are separated. Pull the second slide bar, and the second slide bar drives the first screw bar to move. Set the mark number at the intersection of the second slide bar side measurement number and the first slide bar as needed, and then put down the moving block. The first screw bar and the second screw bar are reconnected, and the threshold setting of the photovoltaic junction box installation height is completed. It is realized that the threshold setting needs to be carried out in advance according to the installation height of the photovoltaic junction box, and the photovoltaic junction box can automatically stop rising after reaching the specified height, preventing the distance from being judged by the human method when the photovoltaic junction box rises too high, and the installation height of the photovoltaic junction box can be accurately located.

[0016] Preferably, the limit assembly includes an arc plate, an L-shaped rod, a second spring, a pressure sensor, and a pressure groove. The L-shaped rod is arranged in the first slide groove, and its two ends extend to the outside of the first slide groove respectively. One end of the L-shaped rod is rotatably connected to the end of the second slide rod away from the first screw rod. The axis of the arc plate is parallel to the axis of the second screw rod and perpendicular to the axis of the first screw rod. The arc plate is slidably connected to the end of the L-shaped rod away from the limit block. The concave surface of the arc plate is arranged close to the second screw rod, and a thread is arranged on the concave surface of the arc plate. The pressure groove is arranged at the connection between the L-shaped rod and the arc plate. The axis of the second spring is perpendicular to the axis of the arc plate, and the second spring is located between the L-shaped rod and the arc plate. One end of the second spring is fixedly connected to the arc plate, and the other end is fixedly connected to the L-shaped rod. The pressure sensor is in the second spring, fixedly connected to the arc plate, and electrically connected to the controller.

[0017] According to the above technical solution, the rotating first screw will move toward the direction of the motor due to the meshing with the second screw and the second inner gear ring, and drive the L-shaped rod to move toward the direction of the second screw, and the L-shaped rod drives the arc plate to move toward the direction of the second screw. When the first screw is close to being disengaged from the second screw, the arc plate is threadedly connected to the second screw. As the L-shaped rod continues to move, the second spring is compressed. When the photovoltaic junction box reaches the set height threshold, the first screw is disengaged from the second screw, the L-shaped rod contacts the pressure sensor, and sufficient pressure is applied to the arc plate through the second spring and the pressure sensor, so that the arc plate is tightly connected to the second screw through the thread, and the second screw no longer rotates. At the same time, the pressure sensor transmits the pressure signal value to the controller, and the controller controls the motor to stop rotating to complete the fixation of the photovoltaic junction box. By setting up the arc plate, L-shaped rod, second spring, pressure sensor and pressure groove, the motor can be stopped when the photovoltaic junction box reaches the specified height, and the second screw can be fixed to prevent the second roller and the first roller from sliding downward, thereby effectively improving the stability and safety of the photovoltaic junction box.

[0018] Preferably, two rubber rings are included. The two rubber rings are respectively sleeved on the sides of the first roller and the second roller, and are respectively fixedly connected to the first roller and the second roller.

[0019] According to the above technical solution, the two rubber rings are in contact with the high pole, which can effectively enhance the friction between the first roller and the second roller and the high pole, further improving the safety and stability of the photovoltaic combiner box during installation.

[0020] A working method of a photovoltaic combiner box for a photovoltaic inverter, when the photovoltaic combiner box needs to be installed on a high pole.

[0021] Step 1: Move the bracket so that the high pole is between the lifting devices.

[0022] Step 2: Set the installation height threshold of the PV combiner box by measuring the components as needed.

[0023] Step 3: Send a signal to the signal receiver through the mobile terminal.

[0024] Step 4: The signal receiver transmits the signal to the controller, the controller controls the motor to start, and the motor drives the linkage component to start through the power gear.

[0025] Step 5: The linkage assembly drives the lifting device through the jack to clamp the high pole.

[0026] Step 6: After the lifting device completes clamping the high pole, it automatically moves upward along the side wall of the high pole.

[0027] Step 7: After the PV combiner box moves to the specified height, the limit assembly automatically fixes the lifting assembly and sends a signal to the controller at the same time, and the controller controls the motor to stop rotating.

[0028] According to the above technical scheme, through the setting of lifting components, signal receivers, controllers, motors, jacks, measuring components, limit components, lifting devices, and linkage components, the automatic fixing and lifting process of the photovoltaic combiner box is realized, the use of manpower and material resources is reduced, and the practicality of the photovoltaic combiner box is fully improved.

[0029] Preferably, when the power gear rotates.

[0030] Step 1: The power gear drives the second inner gear ring to rotate, the second inner gear ring drives the first inner gear ring to rotate through a plurality of first teeth, the first inner gear ring drives the linkage gear to rotate through a plurality of second teeth, and the linkage gear drives the second brake lever to move circularly.

[0031] Step 2: The second brake rod slides back and forth with the first brake rod, driving the first brake rod to move back and forth. The first brake rod reciprocates to compress the input end of the jack.

[0032] Step 3: The output end of the jack extends out and drives the lifting device to clamp the high pole through the third brake rod. The third brake rod drives the first screw rod to move in the second inner gear ring following the third brake rod through the fourth brake rod.

[0033] Step 4: When the lifting device clamps the high pole and applies a certain pressure to the high pole, the reaction force applied by the input end of the jack to the first inner gear ring through the first brake rod, the second brake rod, the linkage gear, and the plurality of second teeth gradually increases, the plurality of first tooth torsion springs are compressed, the plurality of first teeth and the first inner gear ring are no longer meshed, the second inner gear ring cannot apply driving force to the first inner gear ring, and the output end of the jack no longer moves.

[0034] According to the above technical solution, by using the pressure provided by the output end of the jack, the lifting device can exert sufficient clamping force on the high pole to ensure the stability of the fixation of the photovoltaic combiner box and the high pole.

[0035] Preferably, when the first screw rotates: Step 1: The first screw drives the second screw to rotate, the second screw drives the second gear to rotate, the second gear drives the first gear to rotate, and the first gear drives the first roller to rotate through the first short rod.

[0036] Step 2: At the same time, the second screw drives the fourth gear to rotate, and the fourth gear drives the third gear to rotate. The third gear drives the second roller to rotate synchronously with the first roller through the second short rod, and drives the photovoltaic combiner box to move upward along the side of the high pole together with the first roller.

[0037] Step 3: At the same time, the rotating first screw rod will move toward the motor due to the meshing with the second screw rod and the second inner gear ring, and drive the L-shaped rod to move toward the second screw rod, and the L-shaped rod drives the arc plate to move toward the second screw rod.

[0038] Step 4: When the first screw is close to being disengaged from the second screw, the arc plate is threadedly connected to the second screw. As the L-shaped rod continues to move, the second spring is compressed. When the first screw is disengaged from the second screw, the L-shaped rod contacts the pressure sensor, and the second spring and the pressure sensor exert sufficient pressure on the arc plate, so that the arc plate is tightly connected to the second screw through the thread, and the second screw no longer rotates.

[0039] Step 5: At the same time, the pressure sensor transmits the pressure signal value to the controller, and the controller controls the motor to stop rotating, thereby completing the fixation of the photovoltaic combiner box.

[0040] According to the above technical solution, when the moving height of the photovoltaic combiner box reaches a threshold, the first roller and the second roller can be automatically braked and the motor can be controlled to stop rotating, thereby effectively improving the practicality and convenience of the photovoltaic combiner box.

[0041] Beneficial effects of the present invention: 1. Through the arrangement of a bracket, a signal receiver, a controller, a motor, a jack, a first brake rod, a second brake rod, a third brake rod, a power gear, a limit block, a limit ring, two first springs, a first slide rod, a second slide rod, a limit assembly, a first roller, a first gear, a second gear, a second screw rod, a sleeve, an elastic compression rod, a fixing rod, a first short rod, a second short rod, a third short rod, a second roller, a third gear, a fourth gear, a first limit rod, a second limit rod, a first inner gear ring, a second inner gear ring, a plurality of first teeth, a plurality of second teeth, a first screw rod, a fourth brake rod, and a linkage gear, the automatic fixing and lifting process of the photovoltaic combiner box is realized, the use of manpower and material resources is reduced, and the practicality of the photovoltaic combiner box is fully improved.

[0042] 2. Through the setting of the first limit rod, the second limit rod, the first limit groove, the second limit groove, the first inner gear ring, the second inner gear ring, a plurality of first teeth, a plurality of second teeth, the first screw rod, the fourth brake rod, and the linkage gear, the automatic fixation and automatic climbing process of the photovoltaic junction box and the high pole and the automatic switching of the two processes are realized, which further improves the practicality of the photovoltaic junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a front view structural diagram of the device; Figure 2 It is a top view structural diagram of the device; Figure 3 is a schematic diagram of the front view structure of the first inner gear ring; Figure 4 It is a schematic diagram of the partial cross-sectional structure of the first screw.

[0044] Explanation of the accompanying drawings: 1. bracket; 2. second roller; 3. sleeve; 4. second screw; 5. elastic compression rod; 6. first roller; 7. first screw; 8. second inner gear ring; 9. first inner gear ring; 10. fourth brake rod; 11. third brake rod; 12. motor; 13. second brake rod; 14. linkage gear; 15. first brake rod; 16. jack; 17. second gear; 18. first gear; 19. fixing rod; 20. fourth gear; 21. third gear; 22. limit block; 23. first slide rod; 24. second slide rod; 25. L-shaped rod; 26. arc plate; 27. second short rod; 28. first short rod; 29. ​​power gear. DETAILED DESCRIPTION

[0045] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0046] A photovoltaic combiner box for photovoltaic inverters, referring to Figure 1 and Figure 2 , including a photovoltaic junction box, a bracket 1, a signal receiver, a controller, a motor 12, a jack 16, a first brake rod 15, a second brake rod 13, a third brake rod 11, a power gear, a measuring component, a limit component, a lifting device, and a linkage component. The photovoltaic junction box is set on the ground. The bracket 1 is set on one side of the photovoltaic junction box and is fixedly connected to the photovoltaic junction box. The controller is set on one side of the bracket 1 and is fixedly connected to the bracket 1. The signal receiver is set on one side of the photovoltaic junction box and is fixedly connected to the photovoltaic junction box and is connected to the controller signal. The lifting device is set on the bracket 1 and is fixedly connected to the bracket 1. The motor 12 is horizontally set on one side of the lifting device and is fixedly connected to the bracket 1 and is electrically connected to the controller. The linkage component is set between the motor 12 and the lifting device, and is connected to the lifting device drivingly, and is fixedly connected to the bracket 1. The power gear is coaxially connected to the rotating shaft of the motor 12 and is connected to the linkage component drivingly. The axis of the output end of the jack 16 is perpendicular to the axis of the rotating shaft of the motor 12. The jack 16 is arranged below the motor 12 and is fixedly connected to the bracket 1. One end of the first brake rod 15 is fixedly connected to the input end of the jack 16. The second brake rod 13 is a hollow tube, one end of which is sleeved on the end of the first brake rod 15 away from the jack 16. The second brake rod 13 is slidably connected to the first brake rod 15 and is drive-connected to the linkage assembly. The axis of the third brake rod 11 is perpendicular to the axis of the output end of the jack 16. The third brake rod 11 is tilted between the jack 16 and the lifting device, with its lower end fixedly connected to the output end of the jack 16 and its upper end drive-connected to the lifting device. The measuring component is arranged on the side of the linkage assembly away from the power gear and is drive-connected to the linkage assembly. The limit assembly is on one side of the lifting device, is arranged close to the linkage assembly, and is drive-connected to the measuring component.

[0047] When the photovoltaic combiner box needs to be installed on a high pole, first move the bracket 1 so that the high pole is located in the lifting device, and then adjust the moving distance threshold of the lifting device through the measuring component. Use the mobile terminal to send a signal to the signal receiver, and the signal receiver transmits the signal to the controller, and the controller controls the motor 12 to start. The motor 12 drives the power gear to rotate, and the power gear drives the linkage component to start, and the linkage component drives the second brake rod 13 to move cyclically. The second brake rod 13 slides back and forth with the first brake rod 15 while driving the first brake rod 15 to move back and forth, and the first brake rod 15 cyclically compresses the input end of the jack 16. The output end of the jack 16 extends out and drives the lifting device to clamp the high pole through the third brake rod 11. When the lifting device applies a certain pressure to the high pole, the linkage component no longer applies a driving force to the second brake rod 13, and the output end of the jack 16 is fixed. Then, the linkage component automatically drives the lifting device to drive the photovoltaic combiner box to climb above the high pole through the bracket 1, realizing the automatic installation process of the photovoltaic combiner box and the high pole. When the lifting device reaches the set threshold, the linkage component drives the limit component to fix the lifting device, and transmits a signal to the controller at the same time. The controller controls the motor 12 to stop rotating, and the lifting device is fixed at the specified position of the high pole, that is, the photovoltaic combiner box is fixed at the specified height of the high pole. When the photovoltaic combiner box needs to be repaired, a signal is sent to the signal receiver through the mobile terminal, and the signal receiver transmits the signal to the controller. The controller controls the motor 12 to reverse, and the motor 12 drives the power gear to rotate, and the power gear drives the linkage component to start. The linkage component drives the limit component to disengage from the lifting device, and at the same time drives the lifting device to start. The lifting device moves downward along the high pole and drives the photovoltaic combiner box to move downward through the bracket 1. Through the setting of the bracket 1, the signal receiver, the controller, the motor 12, the jack 16, the first brake rod 15, the second brake rod 13, the third brake rod 11, the power gear, the measuring component, the limit component, the lifting device, and the linkage component, the automatic fixing and lifting process of the photovoltaic combiner box is realized, the use of manpower and material resources is reduced, and the practicality of the photovoltaic combiner box is fully improved.

[0048] Reference Figure 1 , Figure 2 and Figure 3The linkage assembly includes a first limiting rod, a second limiting rod, a first limiting groove, a second limiting groove, a first inner gear ring 9, a second inner gear ring 8, a plurality of first teeth, a plurality of second teeth, a first screw rod 7, a fourth brake rod 10, and a linkage gear 14. The axis of the first screw rod 7 is parallel to the axis of the power gear. The first screw rod 7 is between the power gear and the lifting device and is above the power gear. The end of the first screw rod 7 away from the power gear is respectively connected to the lifting device and the measuring assembly. The axis of the fourth brake rod 10 is perpendicular to the axis of the output end of the jack 16 and the axis of the first screw rod 7. One end of the fourth brake rod 10 is connected to the top of the third brake rod 11 in rotation, and its rotation direction is perpendicular to its axis. The other end of the fourth brake rod 10 is connected to the first screw rod 7 in a sliding manner. One end of the first limiting rod is a T-shaped head. The axis of the first limiting rod is parallel to the axis of the power gear. The first limiting rod is arranged between the lifting device and the power gear, and its non-T-shaped head end is fixedly connected to the bracket 1. One end of the second limit rod is a T-shaped head, the axis of the second limit rod is parallel to the axis of the first limit rod, the second limit rod is located above the first limit rod, and the end of the second limit rod that is not a T-shaped head is fixedly connected to the bracket 1. The axis of the first inner gear ring 9 is parallel to the axis of the power gear and is located above the axis of the power gear. The first inner gear ring 9 surrounds the power gear and the first screw rod 7. The side of the first inner gear ring 9 close to the lifting device is slidably connected to the T-shaped head of the first limit rod. The axis of the second inner gear ring 8 is coaxially sleeved in the first inner gear ring 9, and is slidably connected to the first inner gear ring 9 and meshed with the power gear. The side of the second inner gear ring 8 is slidably connected to the T-shaped head of the second limit rod. A plurality of first teeth are respectively arranged on the outer ring of the second inner gear ring 8, and are respectively connected to the second inner gear ring 8 by torsion springs, and are respectively meshed with the first inner gear ring 9. The rotation direction of the plurality of first teeth is respectively parallel to the axis of the second inner gear ring 8. The first limit groove is arranged at the connection between the T-shaped head of the first limit rod and the first inner gear ring 9. The second limiting groove is provided at the connection between the second limiting rod T-shaped head and the second inner gear ring 8. A plurality of second teeth are respectively provided on the outer ring of the first inner gear ring 9 and are respectively fixedly connected to the first inner gear ring 9. The axis of the linkage gear 14 is parallel to the axis of the first inner gear ring 9, and is rotationally connected to the bracket 1 and meshes with the plurality of second teeth. The side edge of the linkage gear 14 away from the motor 12 is rotationally connected to the end of the second brake rod 13 away from the first brake rod 15. The rotation axis of the linkage gear 14 coincides with its axis.

[0049] The rotating power gear drives the second inner gear ring 8 to rotate, the second inner gear ring 8 drives the first inner gear ring 9 to rotate through a plurality of first teeth, the first inner gear ring 9 drives the linkage gear 14 to rotate through a plurality of second teeth, and the linkage gear 14 drives the second brake rod 13 to move cyclically. The second brake rod 13 reciprocates with the first brake rod 15 while driving the first brake rod 15 to move reciprocally. The first brake rod 15 reciprocates to compress the input end of the jack 16, the output end of the jack 16 extends and drives the lifting device to clamp the high pole through the third brake rod 11, and the third brake rod 11 drives the first screw rod 7 to move in the second inner gear ring 8 through the fourth brake rod 10. When the lifting device clamps the high pole and applies a certain pressure to the high pole, the reaction force applied by the input end of the jack 16 to the first inner gear ring 9 through the first brake rod 15, the second brake rod 13, the linkage gear 14, and the plurality of second teeth gradually increases, the plurality of first teeth torsion springs are compressed, the plurality of first teeth and the first inner gear ring 9 are no longer meshed, the second inner gear ring 8 cannot apply a driving force to the first inner gear ring 9, the output of the jack 16 is fixed, and the lifting device can apply sufficient clamping force to the high pole by using the pressure provided by the output end of the jack 16 to ensure the stability of the photovoltaic junction box fixed to the high pole. At this time, the first screw 7 is meshed with the second inner gear ring 8, the second inner gear ring 8 drives the first screw 7 to rotate, and the first screw 7 drives the lifting device to rise, realizing the automatic fixation and automatic climbing process of the photovoltaic junction box and the high pole. By setting the first limiting rod, the second limiting rod, the first limiting groove, the second limiting groove, the first inner gear ring 9, the second inner gear ring 8, a plurality of first teeth, a plurality of second teeth, the first screw rod 7, the fourth brake rod 10, and the linkage gear 14, the automatic fixing and automatic climbing process of the photovoltaic junction box and the high pole and the automatic switching of the two processes are realized, further improving the practicality of the photovoltaic junction box.

[0050] Reference Figure 1 and Figure 2The lifting device includes a first roller 6, a first gear 18, a second gear 17, a second screw 4, a sleeve 3, an elastic compression rod 5, a fixed rod 19, a first short rod 28, and an auxiliary component. The axis of the sleeve 3 is perpendicular to the axis of the first screw 7. The sleeve 3 is transversely arranged on the side of the linkage component away from the motor 12 and is fixedly connected to the bracket 1. The second screw 4 is arranged in the sleeve 3, and its axis coincides with the axis of the sleeve 3, and its two ends extend to the outside of the sleeve 3 respectively. The second screw 4 is slidably connected to the sleeve 3, one end of which is threadedly connected to the first screw 7, and is fixedly connected to the third brake rod 11. The auxiliary component is arranged at one end of the sleeve 3 away from the first screw 7, and is driven and connected to the second screw 4, and is fixedly connected to the sleeve 3. The middle part of the elastic compression rod 5 is retractable, and the axis of the elastic compression rod 5 is parallel to the axis of the second screw 4. The elastic compression rod 5 is arranged at one end of the sleeve 3 away from the first screw 7, and the sleeve 3 is fixedly connected through the bracket 1, and is on the same side of the sleeve 3 as the auxiliary component. The axis of the fixed rod 19 is perpendicularly intersected with the axis of the second screw rod 4 and the axis of the elastic compression rod 5, respectively. One end of the fixed rod 19 is fixedly connected to the end of the elastic compression rod 5 away from the sleeve 3, and the other end is rotatably connected to the screw through a bearing. The axis of the first short rod 28 is perpendicularly intersected with the axis of the second screw rod 4 and the axis of the elastic compression rod 5, respectively. The first short rod 28 is rotatably connected to the end of the elastic compression rod 5 away from the sleeve 3, and its rotation axis coincides with its axis. The first short rod 28 is arranged away from the auxiliary component. The middle of the side of the first roller 6 is concave, and the first roller 6 is coaxially connected to the end of the first short rod 28 away from the second screw rod 4. The first gear 18 is coaxially connected to the end of the first short rod 28 close to the second screw rod 4. The second gear 17 is coaxially connected to the end of the second screw 4 close to the first gear 18, and meshes with the first gear 18.

[0051] The high pole is between the first roller 6 and the auxiliary component. The moving third brake rod 11 drives the second screw rod 4 to move. The second screw rod 4 drives the first roller 6 to move toward the auxiliary component through the fixed rod 19, the first gear 18 and the first short rod 28 until the first roller 6 contacts the high pole and a certain pressure is applied to the high pole by the auxiliary component, and the output end of the jack 16 no longer moves. Then the rotating first screw rod 7 drives the second screw rod 4 to rotate, the second screw rod 4 drives the second gear 17 to rotate, the second gear 17 drives the first gear 18 to rotate, and the first gear 18 drives the first roller 6 to rotate through the first short rod 28. At the same time, the rotating second screw rod 4 drives the auxiliary component to start, and the first roller 6 and the auxiliary component climb upward along the side of the high pole together, realizing the working process of effectively clamping the high pole and stably climbing it.

[0052] Reference Figure 1 and Figure 2The auxiliary assembly includes a second short rod 27, a third short rod, a second roller 2, a third gear 21, a fourth gear 20, and a driving groove. The axis of the second short rod 27 is perpendicular to the axis of the sleeve 3 and parallel to the axis of the first short rod 28. The second short rod 27 is on the same side of the sleeve 3 as the first short rod 28. One end of the second short rod 27 is rotatably connected to the sleeve 3, and its rotation axis coincides with its axis. The second roller 2 is the same shape and size as the first roller 6, and its center geometric point is on the same straight line as the center geometric point of the first roller 6. The second roller 2 is coaxially connected to one end of the second short rod 27. The third gear 21 is coaxially connected to one end of the second short rod 27 and is arranged close to the sleeve 3. The axis of the third short rod is parallel to the axis of the sleeve 3. The third short rod is rotatably connected to the bracket 1 and is between the second screw rod 4 and the third gear 21. The fourth gear 20 is coaxially connected to one end of the third short rod, penetrates the side wall of the sleeve 3, and meshes with the second screw rod 4 and the third gear 21 respectively. The driving groove is arranged at the place where the fourth gear 20 passes through the side wall of the sleeve 3 .

[0053] The side of the first roller 6 contacts the side of the high pole and assists the first roller 6 in clamping the high pole. The rotating second screw 4 drives the fourth gear 20 to rotate, and the fourth gear 20 drives the third gear 21 to rotate. The third gear 21 drives the second roller 2 and the first roller 6 to rotate synchronously through the second short rod 27, and drives the photovoltaic combiner box to move upward along the side of the high pole together with the first roller 6.

[0054] Reference Figure 2 and Figure 4The measuring assembly includes a limit block 22, a first slide, a second slide, a limit ring, two third limit grooves, two first springs, a first slide bar 23, a third slide, and a second slide bar 24. The limit block 22 is arranged on the side of the second screw rod 4 away from the motor 12, and is slidably connected to the bracket 1. The two first springs are respectively arranged vertically at the top of the limit block 22, and their lower ends are respectively fixedly connected to the limit block 22, and their upper ends are respectively fixedly connected to the bracket 1. The first slide is transversely arranged in the limit block 22 and passes through the limit block 22. The axis of the first slide bar 23 coincides with the axis of the first screw rod 7, and the diameter of the first slide bar 23 is smaller than the diameter of the first screw rod 7. The first slide bar 23 is in the first slide, and its two ends extend to the outside of the first slide, respectively. One end of the first slide bar 23 is slidably connected to the first screw rod 7, and its sliding direction coincides with its axis. The limit ring is coaxially sleeved on the first slide bar 23, and is fixedly connected to the first slide bar 23, and is slidably connected to the limit block 22. The second slide groove is set at the connection between the first slide bar 23 and the first screw 7. Two third limit grooves are respectively set at the connection between the limit ring and the limit block 22, and are respectively in the first slide groove. The axis of the second slide bar 24 coincides with the axis of the first slide bar 23. The second slide bar 24 is set in the first slide bar 23, and its two ends extend to the outside of the first slide bar 23 respectively. The second slide bar 24 is slidably connected to the first slide bar 23, one end of the second slide bar 24 is fixedly connected to the first screw 7, and a measurement mark is set on the side of the second slide bar 24. The third slide groove is set at the connection between the second slide bar 24 and the first slide bar 23.

[0055] When adjusting the threshold of the installation height of the photovoltaic combiner box, first push the limit block 22 upward. The limit block 22 drives the first slide bar 23 to move upward, and the first slide bar 23 drives the second slide bar 24 and the first screw 7 to move upward respectively, and the first screw 7 is separated from the second screw 4. Pull the second slide bar 24, and the second slide bar 24 drives the first screw 7 to move. Set the mark number at the intersection of the side measurement number of the second slide bar 24 and the first slide bar 23 as needed, and then put down the moving block, and reconnect the first screw 7 with the second screw 4. The threshold setting of the photovoltaic combiner installation height is completed, and the threshold setting needs to be performed in advance according to the installation height of the photovoltaic combiner box. The photovoltaic combiner box can automatically stop rising after reaching the specified height, preventing the distance from being judged by the human method when the photovoltaic combiner box rises too high, and the installation height of the photovoltaic combiner box can be accurately located.

[0056] Reference Figure 2The limit assembly includes an arc plate 26, an L-shaped rod 25, a second spring, a pressure sensor, and a pressure groove. The L-shaped rod 25 is arranged in the first slide groove, and its two ends extend to the outside of the first slide groove respectively. One end of the L-shaped rod 25 is rotatably connected to the end of the second slide rod 24 away from the first screw rod 7. The axis of the arc plate 26 is parallel to the axis of the second screw rod 4 and perpendicular to the axis of the first screw rod 7. The arc plate 26 is slidably connected to the end of the L-shaped rod 25 away from the limit block 22. The concave surface of the arc plate 26 is arranged close to the second screw rod 4, and a thread is arranged on the concave surface of the arc plate 26. The pressure groove is arranged at the connection between the L-shaped rod 25 and the arc plate 26. The axis of the second spring is perpendicular to the axis of the arc plate 26. The second spring is located between the L-shaped rod 25 and the arc plate 26. One end of the second spring is fixedly connected to the arc plate 26, and the other end is fixedly connected to the L-shaped rod 25. The pressure sensor is located in the second spring, fixedly connected to the arc plate 26, and electrically connected to the controller.

[0057] The rotating first screw 7 will move toward the motor 12 due to the meshing with the second screw 4 and the second inner gear ring 8, and drive the L-shaped rod 25 to move toward the second screw 4, and the L-shaped rod 25 drives the arc plate 26 to move toward the second screw 4. When the first screw 7 is close to being disengaged from the second screw 4, the arc plate 26 is threadedly connected with the second screw 4. As the L-shaped rod 25 continues to move, the second spring is compressed. When the photovoltaic junction box reaches the set height threshold, the first screw 7 is disengaged from the second screw 4, the L-shaped rod 25 contacts the pressure sensor, and sufficient pressure is applied to the arc plate 26 through the second spring and the pressure sensor, so that the arc plate 26 is tightly connected with the second screw 4 through the thread, and the second screw 4 no longer rotates. At the same time, the pressure sensor transmits the pressure signal value to the controller, and the controller controls the motor 12 to stop rotating, completing the fixation of the photovoltaic junction box. By setting the arc plate 26, L-shaped rod 25, second spring, pressure sensor and pressure groove, the motor 12 can be stopped when the photovoltaic junction box reaches the specified height, and the second screw 4 can be fixed to prevent the second roller 2 and the first roller 6 from sliding downward, thereby effectively improving the stability and safety of the photovoltaic junction box.

[0058] It includes two rubber rings. The two rubber rings are respectively sleeved on the sides of the first roller 6 and the second roller 2, and are respectively fixedly connected to the first roller 6 and the second roller 2.

[0059] The two rubber rings are in contact with the high pole, which can effectively enhance the friction between the first roller and the second roller and the high pole, further improving the safety and stability of the photovoltaic combiner box during installation.

[0060] Working principle: When the photovoltaic junction box needs to be installed on a high pole, first move the bracket 1 so that the high pole is between the first roller 6 and the second roller 2, push the limit block 22 upward, the limit block 22 drives the first slide bar 23 to move upward, the first slide bar 23 drives the second slide bar 24 and the first screw 7 to move upward respectively, and the first screw 7 is disengaged from the second screw 4. Pull the second slide bar 24, the second slide bar 24 drives the first screw 7 to move, set the side measurement mark of the second slide bar 24 and the mark at the intersection of the first slide bar 23 as needed, then put down the moving block, reconnect the first screw 7 with the second screw 4, and the photovoltaic junction installation height threshold is set. Use the mobile terminal to send a signal to the signal receiver, the signal receiver transmits the signal to the controller, and the controller controls the motor 12 to start. The motor 12 drives the power gear to rotate, the power gear drives the second inner gear ring 8 to rotate, the second inner gear ring 8 drives the first inner gear ring 9 to rotate through a plurality of first teeth, the first inner gear ring 9 drives the linkage gear 14 to rotate through a plurality of second teeth, and the linkage gear 14 drives the second brake rod 13 to move cyclically. The second brake rod 13 reciprocates with the first brake rod 15 while driving the first brake rod 15 to move reciprocally. The first brake rod 15 reciprocates to compress the input end of the jack 16, and the output end of the jack 16 extends out and drives the second screw 4 to move through the third brake rod 11. The second screw 4 drives the first roller 6 to move toward the second roller 2 through the fixed rod 19, the first gear 18 and the first short rod 28, until the first roller 6 contacts the high rod and applies a certain pressure. The reaction force applied by the input end of the jack 16 to the first inner gear ring 9 through the first brake rod 15, the second brake rod 13, the linkage gear 14, and the plurality of second teeth gradually increases, and the plurality of first tooth torsion springs are compressed, and the plurality of first teeth are no longer meshed with the first inner gear ring 9. The second inner gear ring 8 cannot apply a driving force to the first inner gear ring 9, and the output of the jack 16 is fixed. At this time, the first screw 7 is meshed with the second inner gear ring 8, the second inner gear ring 8 drives the first screw 7 to rotate, the first screw 7 drives the second screw 4 to rotate, the second screw 4 drives the second gear 17 to rotate, the second gear 17 drives the first gear 18 to rotate, and the first gear 18 drives the first roller 6 to rotate through the first short rod 28. At the same time, the rotating second screw 4 drives the fourth gear 20 to rotate, and the fourth gear 20 drives the third gear 21 to rotate. The third gear 21 drives the second roller 2 and the first roller 6 to rotate synchronously through the second short rod 27, and drives the photovoltaic combiner box to move upward along the side of the high pole together with the first roller 6. When the photovoltaic combiner box reaches the set height threshold, when the first screw 7 and the second screw 4 are separated, the L-shaped rod 25 contacts the pressure sensor, and the arc plate 26 is applied with sufficient pressure through the second spring and the pressure sensor, so that the arc plate 26 and the second screw 4 are tightly connected through the thread, and the second screw 4 no longer rotates. At the same time, the pressure sensor transmits the pressure signal value to the controller, and the controller controls the motor 12 to stop rotating, thereby completing the fixation of the photovoltaic combiner box.When the photovoltaic combiner box needs to be repaired, a signal is sent to the signal receiver through the mobile phone terminal, and the signal receiver transmits the signal to the controller, and the controller controls the motor 12 to reverse.

[0061] A working method of a photovoltaic combiner box for a photovoltaic inverter, when the photovoltaic combiner box needs to be installed on a high pole.

[0062] Step 1: Move the bracket 1 so that the high pole is between the lifting devices.

[0063] Step 2: Set the installation height threshold of the PV combiner box by measuring the components as needed.

[0064] Step 3: Send a signal to the signal receiver through the mobile terminal.

[0065] Step 4: The signal receiver transmits the signal to the controller, and the controller controls the motor 12 to start, and the motor 12 drives the linkage assembly to start through the power gear.

[0066] Step 5: The linkage assembly drives the lifting device through the jack 16 to clamp the high pole.

[0067] Step 6: After the lifting device completes clamping the high pole, it automatically moves upward along the side wall of the high pole.

[0068] Step 7: After the photovoltaic combiner box moves to the specified height, the limit assembly automatically fixes the lifting assembly and sends a signal to the controller at the same time, and the controller controls the motor 12 to stop rotating.

[0069] By setting up the lifting component, signal receiver, controller, motor 12, jack 16, measuring component, limit component, lifting device, and linkage component, the automatic fixing and lifting process of the photovoltaic combiner box is realized, the use of manpower and material resources is reduced, and the practicality of the photovoltaic combiner box is fully improved.

[0070] When the power gear turns.

[0071] Step 1: The power gear drives the second inner gear ring 8 to rotate, the second inner gear ring 8 drives the first inner gear ring 9 to rotate through a plurality of first teeth, the first inner gear ring 9 drives the linkage gear 14 to rotate through a plurality of second teeth, and the linkage gear 14 drives the second brake lever 13 to move circularly.

[0072] Step 2: The second brake rod 13 slides back and forth with the first brake rod 15, driving the first brake rod 15 to move back and forth. The first brake rod 15 reciprocates to compress the input end of the jack 16.

[0073] Step 3: The output end of the jack 16 extends out and drives the lifting device to clamp the high pole through the third brake rod 11. The third brake rod 11 drives the first screw rod 7 to move in the second inner gear ring 8 following the third brake rod 11 through the fourth brake rod 10.

[0074] Step 4: When the lifting device clamps the high pole and applies a certain pressure to the high pole, the reaction force applied by the input end of the jack 16 to the first inner gear ring 9 through the first brake rod 15, the second brake rod 13, the linkage gear 14, and a plurality of second teeth gradually increases, a plurality of first tooth torsion springs are compressed, a plurality of first teeth and the first inner gear ring 9 no longer mesh, the second inner gear ring 8 cannot apply a driving force to the first inner gear ring 9, and the output end of the jack 16 no longer moves.

[0075] By utilizing the pressure provided by the output end of the jack 16, the lifting device can exert sufficient clamping force on the high pole to ensure the stability of the fixation between the photovoltaic combiner box and the high pole.

[0076] When the first screw 7 rotates: Step 1: The first screw rod 7 drives the second screw rod 4 to rotate, the second screw rod 4 drives the second gear 17 to rotate, the second gear 17 drives the first gear 18 to rotate, and the first gear 18 drives the first roller 6 to rotate through the first short rod 28.

[0077] Step 2: At the same time, the second screw rod 4 drives the fourth gear 20 to rotate, and the fourth gear 20 drives the third gear 21 to rotate. The third gear 21 drives the second roller 2 and the first roller 6 to rotate synchronously through the second short rod 27, and drives the photovoltaic combiner box to move upward along the side of the high pole together with the first roller 6.

[0078] Step 3: At the same time, the rotating first screw 7 will move toward the motor 12 due to the engagement with the second screw 4 and the second inner gear ring 8, and drive the L-shaped rod 25 to move toward the second screw 4, and the L-shaped rod 25 drives the arc plate 26 to move toward the second screw 4.

[0079] Step 4: When the first screw rod 7 is close to being separated from the second screw rod 4, the arc plate 26 is threadedly connected to the second screw rod 4. As the L-shaped rod 25 continues to move, the second spring is compressed, and when the first screw rod 7 is separated from the second screw rod 4, the L-shaped rod 25 contacts the pressure sensor, and sufficient pressure is applied to the arc plate 26 through the second spring and the pressure sensor, so that the arc plate 26 is tightly connected to the second screw rod 4 through the thread, and the second screw rod 4 no longer rotates.

[0080] Step 5: At the same time, the pressure sensor transmits the pressure signal value to the controller, and the controller controls the motor 12 to stop rotating, thereby completing the fixation of the photovoltaic combiner box.

[0081] When the moving height of the photovoltaic combiner box reaches a threshold, the first roller 6 and the second roller 2 can be automatically braked, and the motor 12 can be controlled to stop rotating, thereby effectively improving the practicality and convenience of the photovoltaic combiner box.

[0082] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A photovoltaic combiner box for a photovoltaic inverter, characterized in that: The invention comprises a photovoltaic combiner box, a bracket (1), a signal receiver, a controller, a motor (12), a jack (16), a first brake rod (15), a second brake rod (13), a third brake rod (11), a power gear, a measuring component, a limit component, a lifting device, and a linkage component; the photovoltaic combiner box is arranged on the ground; the bracket (1) is arranged on one side of the photovoltaic combiner box and is fixedly connected to the photovoltaic combiner box; the controller is arranged on one side of the bracket (1) and is fixedly connected to the bracket (1); the signal receiver is arranged on the photovoltaic combiner box The lifting device is arranged on one side of the lifting device and is fixedly connected to the photovoltaic combiner box and is connected to the controller signal; the lifting device is arranged on the bracket (1) and is fixedly connected to the bracket (1); the motor (12) is arranged horizontally on one side of the lifting device and is fixedly connected to the bracket (1) and is electrically connected to the controller; the linkage component is arranged between the motor (12) and the lifting device and is connected to the lifting device drivingly and is fixedly connected to the bracket (1); the power gear is coaxially connected to the rotating shaft of the motor (12) and is connected to the linkage component. The jack (16) is connected to the driving assembly; the axis of the output end of the jack (16) is perpendicular to the axis of the rotating shaft of the motor (12); the jack (16) is arranged below the motor (12) and is fixedly connected to the bracket (1); one end of the first brake rod (15) is fixedly connected to the input end of the jack (16); the second brake rod (13) is a hollow tube, one end of which is sleeved on the end of the first brake rod (15) away from the jack (16); the second brake rod (13) is slidably connected to the first brake rod (15) and is connected to the linkage assembly The third brake rod (11) is connected to the lifting device by driving; the axis of the third brake rod (11) is perpendicular to the axis of the output end of the jack (16); the third brake rod (11) is tiltedly arranged between the jack (16) and the lifting device, the upper end of which is fixedly connected to the output end of the jack (16), and the lower end of which is connected to the lifting device by driving; the measuring component is arranged on the side of the linkage component away from the power gear, and is connected to the linkage component by driving; the limiting component is located on one side of the lifting device, and is arranged close to the linkage component, and is connected to the measuring component by driving; The lifting device comprises a first roller (6), a first gear (18), a second gear (17), a second screw rod (4), a sleeve (3), an elastic compression rod (5), a fixing rod (19), a first short rod (28), and an auxiliary component; the sleeve (3) is transversely arranged on a side of the linkage component away from the motor (12) and is fixedly connected to the bracket (1); the second screw rod (4) is arranged in the sleeve (3), the axis thereof coincides with the axis of the sleeve (3), and the two ends thereof respectively extend to the outside of the sleeve (3); the second screw rod ( 4) is slidably connected to the sleeve (3), and one end of which is fixedly connected to the third brake rod (11); the auxiliary component is arranged at one end of the sleeve (3), and is drivingly connected to the second screw rod (4), and is fixedly connected to the sleeve (3); the middle part of the elastic compression rod (5) is retractable, the axis of the elastic compression rod (5) is parallel to the axis of the second screw rod (4), the elastic compression rod (5) is arranged at one end of the sleeve (3), and is fixedly connected to the sleeve (3) through the bracket (1), and is located in the sleeve with the auxiliary component. (3) on the same side; the axis of the fixed rod (19) is perpendicularly intersected with the axis of the second screw rod (4) and the axis of the elastic compression rod (5), one end of the fixed rod (19) is fixedly connected to the end of the elastic compression rod (5) away from the sleeve (3), and the other end is rotatably connected to the screw through a bearing; the axis of the first short rod (28) is perpendicularly intersected with the axis of the second screw rod (4) and the axis of the elastic compression rod (5), and the first short rod (28) is rotatably connected to the end of the elastic compression rod (5) away from the sleeve (3) , its rotation axis coincides with its axis, the first short rod (28) is arranged away from the auxiliary component; the middle of the side of the first roller (6) is arranged in a concave manner, and the first roller (6) is coaxially connected to an end of the first short rod (28) away from the second screw rod (4); the first gear (18) is coaxially connected to an end of the first short rod (28) close to the second screw rod (4); the second gear (17) is coaxially connected to an end of the second screw rod (4) close to the first gear (18), and meshes with the first gear (18).

2. A photovoltaic combiner box for a photovoltaic inverter according to claim 1, characterized in that The auxiliary component comprises a second short rod (27), a third short rod, a second roller (2), a third gear (21), a fourth gear (20), and a driving groove; the axis of the second short rod (27) is perpendicular to the axis of the sleeve (3) and is parallel to the axis of the first short rod (28), and is located on the same side of the sleeve (3) as the first short rod (28); one end of the second short rod (27) is rotatably connected to the sleeve (3), and its rotation axis coincides with its axis; the second roller (2) and the first roller (6) are of the same shape and size, and the center geometric point thereof is on the same straight line as the center geometric point of the first roller (6); the second roller ( 2) is coaxially connected to one end of the second short rod (27); the third gear (21) is coaxially connected to one end of the second short rod (27) and is arranged close to the sleeve (3); the axis of the third short rod is parallel to the axis of the sleeve (3), the third short rod is rotatably connected to the bracket (1), and is located between the second screw rod (4) and the third gear (21); the fourth gear (20) is coaxially connected to one end of the third short rod, and passes through the side wall of the sleeve (3), and is respectively engaged with the second screw rod (4) and the third gear (21); the driving groove is arranged at the place where the fourth gear (20) passes through the side wall of the sleeve (3).

3. A photovoltaic combiner box for a photovoltaic inverter according to claim 2, characterized in that : comprising two rubber rings; the two rubber rings are respectively sleeved on the sides of the first roller (6) and the second roller (2), and are respectively fixedly connected to the first roller (6) and the second roller (2).

Images