Low-voltage intelligent photovoltaic combiner box adopting carrier communication

Abstract

The invention discloses a low-voltage intelligent photovoltaic combiner box adopting carrier communication, which comprises a mounting plate, mounting holes are formed in four corners in the mounting plate, a photovoltaic combiner box is arranged at the front end of the mounting plate, the low-voltage intelligent photovoltaic combiner box further comprises two fixing seats arranged on the upper side of the front end of the mounting plate, and the two fixing seats are arranged on the upper side of the front end of the mounting plate. Transmission cavities are formed in the fixing bases correspondingly, and first trapezoidal blocks are arranged in the transmission cavities correspondingly. According to the low-voltage intelligent photovoltaic combiner box adopting carrier communication, rapid disassembly of the photovoltaic combiner box is achieved, an operator does not need to repeatedly carry out complex operation procedures, operation is simple, daily disassembly and assembly are facilitated, meanwhile, after bolts are installed through the installation holes, the bolts can be hidden in the butt joint bases, and therefore the photovoltaic combiner box is convenient to disassemble and assemble. The rubber block is clamped into the butt joint base, so that direct contact between the bolt and the external environment is isolated, the risk of oxidation rusting is greatly reduced, and therefore the long-term stability and safety of the installation structure are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic combiner boxes, and in particular to a low-voltage intelligent photovoltaic combiner box using carrier communication. Background Art

[0002] The low-voltage intelligent photovoltaic combiner box using carrier communication is an advanced device used in photovoltaic power generation systems. It combines carrier communication technology and intelligent control functions and is designed for low-voltage environments. As a key device for the intelligent transformation of photovoltaic power generation systems, it demonstrates excellent data transmission and monitoring capabilities. The device integrates carrier communication technology and uses power lines as communication media to achieve real-time transmission and centralized monitoring of photovoltaic component operation data. There is no need to lay additional communication lines, which reduces system costs and improves the reliability and stability of data transmission. The intelligent photovoltaic combiner box uses carrier modulation technology to accurately transmit key parameters such as current, voltage, temperature, and fault alarm information of photovoltaic components to the remote monitoring center or cloud platform, providing comprehensive and timely data support for operation and maintenance personnel. These data not only help operation and maintenance personnel to grasp the operating status of the photovoltaic system in real time, but also can be deeply analyzed through intelligent algorithms, providing a scientific basis for the optimized operation of the photovoltaic system.

[0003] For example, the Chinese authorized patent "A smart photovoltaic junction box" with announcement number CN221614941U includes a box body, and a mounting assembly is arranged at the rear end of the box body, and the mounting assembly includes a first anti-slip part, two groups of the first anti-slip parts are fixedly connected to one end of the first clamping rod, two groups of the first clamping rods pass through the first telescopic slot, two groups of the first clamping rods are fixedly connected to the circular abutment plate, two groups of the circular abutment plates abut against one end of the first telescopic slot, the outside of the two groups of the first clamping rods are sleeved with a first spring, one end of the two groups of the first springs abut against the spring abutment plate, and the other ends of the two groups of the first springs are fixedly connected to the inner wall of the first telescopic slot, and an abutment assembly is arranged inside the first telescopic slot, and the abutment assembly includes a first pull rod, and the two groups of the first pull rods pass through the top of the first telescopic slot.

[0004] Although the above-mentioned prior art can disassemble and assemble the smart photovoltaic combiner box, after the mounting frame of the photovoltaic combiner box is connected to the wall, the bolts in the mounting holes of the mounting frame will still be exposed to the outside, and oxidation may occur on their surfaces. At the same time, the device needs to be repeatedly operated when used, which makes the disassembly and assembly steps complicated and affects the actual disassembly and assembly efficiency. Therefore, it does not meet the existing needs. In this regard, we propose a low-voltage smart photovoltaic combiner box using carrier communication. Summary of the invention

[0005] The purpose of the present invention is to provide a low-voltage intelligent photovoltaic combiner box using carrier communication to solve the problem that the steps of disassembly and assembly of the photovoltaic combiner box proposed in the above background technology need to be repeated, resulting in complicated operation procedures and the exposed bolts after the mounting frame is fixed to the wall may be oxidized and affect the stability after installation.

[0006] To achieve the above object, the present invention provides the following technical solution: a low-voltage intelligent photovoltaic combiner box using carrier communication, comprising a mounting plate, four corners of the mounting plate are provided with mounting holes, and a photovoltaic combiner box is arranged at the front end of the mounting plate;

[0007] It also includes a fixing seat, which is arranged on the upper side of the front end of the mounting plate, and there are two fixing seats, each of which has a transmission cavity inside, each of which has a first trapezoidal block inside, a second trapezoidal block on one side of the transmission cavity, and the second trapezoidal block fits with the first trapezoidal block, a first guide rod is welded on the other side of the transmission cavity, and a second guide rod is welded on the lower side of the transmission cavity, the first trapezoidal block and the first guide rod are connected by sliding blocks, the sliding blocks penetrate the first guide rod and the second guide rod, and the sliding blocks are slidably matched with the first guide rod and the second guide rod;

[0008] It also includes a holder, which is arranged on both sides of the lower side of the front end of the mounting plate, the inside of the holder is provided with a T-shaped slot, the inside of the T-shaped slot is provided with a T-shaped block slidably, and one end of the T-shaped block extends to the outside of the T-shaped slot, and the end of the T-shaped block located outside the T-shaped slot is connected to the photovoltaic combiner box;

[0009] It also includes a double-threaded transmission rod, which is rotatably arranged on the lower side of the mounting plate. Both sides of the outside of the double-threaded transmission rod are threadedly connected to the moving block. Two baffles are arranged at the lower end of the photovoltaic junction box, and the baffles are both fitted with the photovoltaic junction box. The lower ends of the moving blocks are connected to the baffles.

[0010] Preferably, a motor is provided on one side of the double-threaded transmission rod, and the output end of the motor is connected to the double-threaded transmission rod via a coupling.

[0011] Preferably, a PLC controller is provided on one side of the lower end of the photovoltaic combiner box, and the output end of the PLC controller is electrically connected to the input end of the motor, a temperature sensor is provided on the other side of the lower end of the photovoltaic combiner box, and the output end of the temperature sensor is electrically connected to the input end of the PLC controller, and a cooling fan is provided at the upper end of the photovoltaic combiner box, and the input end of the cooling fan is electrically connected to the output end of the PLC controller.

[0012] Preferably, a first spring is sleeved on the upper side of the outer portion of the first guide rod, one end of the first spring is connected to the sliding block, and the other end of the first spring is connected to the transmission chamber.

[0013] Preferably, a second spring is sleeved on one side of the exterior of the second guide rod, one end of the second spring is connected to the sliding block, and the other end of the second spring is connected to the transmission chamber.

[0014] Preferably, a connecting plate is provided above the photovoltaic junction box, and a pull rod is provided at the upper end of each of the first trapezoidal blocks, one end of each of the pull rods passes through and extends to the outside of the transmission cavity, and one end of the pull rod located outside the transmission cavity is bonded and fixed to the connecting plate.

[0015] Preferably, limiting grooves are provided on the upper sides of both sides of the photovoltaic junction box, and limiting blocks are adhered and fixed to the inner sides of the second trapezoidal blocks, one end of the limiting blocks passes through and extends to the outside of the transmission cavity, and the end of the limiting blocks located outside the transmission cavity is adapted to the limiting grooves.

[0016] Preferably, docking seats are provided at the four corners of the front end of the mounting plate, connecting blocks are provided on both sides of the upper and lower ends of the photovoltaic junction box, the rear ends of the connecting blocks are bonded and fixed with connecting rods, the rear ends of the connecting rods are bonded and fixed with rubber blocks, and the rubber blocks are adapted to the docking seats.

[0017] Preferably, an extrusion plate is provided inside the T-slot, and the extrusion plate is fitted with the T-block, the extrusion plate and the T-slot are connected by a plurality of third springs distributed in a rectangular array, a covering block is adhesively fixed to the front end of the T-block, and the covering block is fitted with the socket.

[0018] Preferably, a third guide rod is welded to the lower side of the interior of the photovoltaic combiner box, the third guide rod passes through the moving block, and the third guide rod is slidably matched with the moving block.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention provides two fixing seats on the upper side of the front end of the mounting plate, and two clamping seats on the lower side of the front end of the mounting plate. When the photovoltaic combiner box is installed, it only needs to be clamped between the fixing seat and the clamping seat. The elastic action of the first spring can make the second trapezoidal block drive the limit block to be clamped into the inside of the limit groove, so that the upper end of the photovoltaic combiner box and the fixing seat can be firmly fixed. At the same time, the T-block at the lower end of the photovoltaic combiner box will be clamped into the T-slot, which can effectively prevent the left and right sides of the photovoltaic combiner box from falling off. The third spring at the lower end of the T-slot can make the squeeze The pressing plate squeezes the T-block upwards, making the connection between the photovoltaic combiner box and the holder more secure, so that the photovoltaic combiner box can be quickly installed. Just pull the connecting plate upwards, and the connecting plate will drive the first trapezoidal block to move upwards through the pull rod. At this time, the limit block can be led out of the inside of the impact groove under the elastic action of the second spring, so that the upper side of the photovoltaic combiner box can be quickly fixed. At this time, you only need to slide the photovoltaic combiner box to take it out, which realizes the rapid disassembly of the photovoltaic combiner box. The operator does not need to repeat the complicated operation process, and the operation is simple, which is convenient for daily disassembly and assembly.

[0021] 2. The present invention provides a docking seat at the front end of the mounting hole. When the photovoltaic combiner box is installed, the photovoltaic combiner box will make the rubber block snap into the inside of the docking seat through the connecting block and the connecting rod. After the bolts are installed through the mounting holes, the bolts will be hidden inside the docking seat. The rubber block snaps into the inside of the docking seat to isolate the bolts from direct contact with the external environment, greatly reducing the risk of oxidation and rusting, thereby ensuring the long-term stability and safety of the installation structure. In the process of the rubber block snapping into the docking seat, a tight fit and extrusion will be formed. This physical contact not only increases the friction between the two, but also achieves a better sealing effect through the elastic deformation of the rubber material, effectively preventing loosening or falling off due to factors such as vibration and wind, and making the connection between the mounting plate and the wall more firm.

[0022] 3. The present invention installs a temperature sensor on one side of the lower end of the photovoltaic combiner box. The internal components of the photovoltaic combiner box will generate heat when working, which will cause the internal temperature to rise. At this time, it will be detected by the temperature sensor, and the PLC controller will start the motor to make the double-threaded transmission rod drive the moving block to move. The two moving blocks will move in opposite directions. The movement of the moving blocks will open the two baffles. The two baffles seal and protect the inside of the photovoltaic combiner box in the closed state. When heat dissipation is needed, their opening greatly increases the contact area between the inside of the photovoltaic combiner box and the external environment, providing a necessary channel for the effective dissipation of heat. The PLC controller will synchronously start the heat dissipation fan. As the fan is started, a strong airflow is introduced into the interior of the photovoltaic combiner box, taking away the accumulated heat, and quickly dissipating it to the external environment through the opened baffles, thereby achieving good heat dissipation of internal components and avoiding damage caused by heat accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a front view schematic diagram of the internal structure of the photovoltaic combiner box of the present invention;

[0025] Figure 3 It is a top view schematic diagram of the internal structure of the mounting plate of the present invention;

[0026] Figure 4 For the present invention Figure 2 A partial enlarged view of the middle A area;

[0027] Figure 5 For the present invention Figure 2 A partial enlarged view of the middle B area;

[0028] Figure 6 For the present invention Figure 3 A partial enlarged view of area C in the middle.

[0029] In the figure: 1. mounting plate; 2. photovoltaic combiner box; 3. mounting hole; 4. docking seat; 5. rubber block; 6. connecting rod; 7. connecting block; 8. fixing seat; 9. transmission chamber; 10. first trapezoidal block; 11. second trapezoidal block; 12. first guide rod; 13. first spring; 14. second guide rod; 15. second spring; 16. sliding block; 17. pull rod; 18. connecting plate; 19. limit groove; 20. limit block; 21. holder; 22. T-block; 23. T-slot; 24. third spring; 25. extrusion plate; 26. temperature sensor; 27. PLC controller; 28. motor; 29. ​​double-threaded transmission rod; 30. third guide rod; 31. moving block; 32. baffle; 33. cooling fan; 34. shielding block. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] See also Figure 1-6 , an embodiment provided by the present invention: a low-voltage intelligent photovoltaic combiner box using carrier communication, comprising a mounting plate 1, mounting holes 3 are opened at four corners inside the mounting plate 1, and a photovoltaic combiner box 2 is arranged at the front end of the mounting plate 1;

[0032] It also includes a fixed seat 8, which is arranged on the upper side of the front end of the mounting plate 1, and there are two fixed seats 8, each of which has a transmission cavity 9, each of which has a first trapezoidal block 10, a second trapezoidal block 11 is arranged on one side of the transmission cavity 9, and the second trapezoidal block 11 is fitted with the first trapezoidal block 10, a first guide rod 12 is welded on the other side of the transmission cavity 9, and a second guide rod 14 is welded on the lower side of the transmission cavity 9, the first trapezoidal block 10 and the first guide rod 12 are connected, and the second trapezoidal block 11 and the second guide rod 14 are connected by a sliding block 16, the sliding block 16 penetrates the first guide rod 12 and the second guide rod 14, and the sliding block 16 is slidably matched with the first guide rod 12 and the second guide rod 14;

[0033] It also includes a holder 21, which is arranged on both sides of the lower side of the front end of the mounting plate 1, and the inside of the holder 21 is provided with a T-shaped slot 23, and the inside of the T-shaped slot 23 is slidably provided with a T-shaped block 22, and one end of the T-shaped block 22 extends to the outside of the T-shaped slot 23, and the end of the T-shaped block 22 located outside the T-shaped slot 23 is connected to the photovoltaic combiner box 2;

[0034] It also includes a double-threaded transmission rod 29, which is rotatably arranged on the lower side of the mounting plate 1. Both sides of the outside of the double-threaded transmission rod 29 are threadedly connected to the moving block 31. Two baffles 32 are arranged at the lower end of the photovoltaic junction box 2, and the baffles 32 are both fitted with the photovoltaic junction box 2. The lower ends of the moving blocks 31 are connected to the baffles 32.

[0035] When in use, the mounting plate 1 is fixed to the wall through the mounting hole 3 on the mounting plate 1, and then the photovoltaic junction box 2 is slid into the fixing seat 8, and the initial positioning is achieved through the cooperation of the T-block 22 and the T-slot 23. After loosening the connecting plate 18, the first trapezoidal block 10 pushes the second trapezoidal block 11 under the action of the first spring 13, so that the limit block 20 is inserted into the limit slot 19, and the photovoltaic junction box 2 is quickly installed. During this process, the rubber block 5 is synchronously inserted into the docking seat 4 to isolate the bolts from the environment, prevent oxidation and rust, and enhance the stability of the connection. When the photovoltaic junction box 2 is working, it produces The generated heat is detected by the temperature sensor 26 and the heat dissipation is intelligently controlled by the PLC controller 27. When the temperature exceeds the standard, the motor 28 drives the double-threaded transmission rod 29, driving the moving block 31 to move along the third guide rod 30, so that the baffle 32 is separated to increase the heat dissipation area. At the same time, the heat dissipation fan 33 is started to blow out air to take away the heat and achieve effective heat dissipation. When the temperature is normal, the baffle 32 automatically closes to maintain the seal and protect the internal components. The whole process realizes the rapid disassembly and assembly and intelligent temperature control and heat dissipation of the photovoltaic junction box 2, and improves the stability and ease of use of the equipment.

[0036] See also Figure 2A motor 28 is provided on one side of the double-threaded transmission rod 29, and the output end of the motor 28 is connected to the double-threaded transmission rod 29 through a coupling. The power of the motor 28 can be efficiently and stably transmitted to the double-threaded transmission rod 29, realizing precise transmission control and providing a reliable power source for subsequent heat dissipation adjustment.

[0037] See also Figure 2 A PLC controller 27 is provided on one side of the lower end of the photovoltaic combiner box 2, and the output end of the PLC controller 27 is electrically connected to the input end of the motor 28. A temperature sensor 26 is provided on the other side of the lower end of the photovoltaic combiner box 2, and the output end of the temperature sensor 26 is electrically connected to the input end of the PLC controller 27. A heat dissipation fan 33 is provided on the upper end of the photovoltaic combiner box 2, and the input end of the heat dissipation fan 33 is electrically connected to the output end of the PLC controller 27. The PLC controller 27 can receive data from the temperature sensor 26 in real time, and control the start and stop of the motor 28 according to the preset logic to realize intelligent temperature control. At the same time, the PLC controller 27 also directly controls the heat dissipation fan 33 to ensure the synchronous response of the heat dissipation efficiency and the temperature change.

[0038] See also Figure 4 A first spring 13 is sleeved on the upper side of the outer side of the first guide rod 12, one end of the first spring 13 is connected to the sliding block 16, and the other end of the first spring 13 is connected to the transmission chamber 9. The first spring 13 provides a reset force for the sliding block 16 to ensure that after the connecting plate 18 is released, the first trapezoidal block 10 can automatically move downward and push the second trapezoidal block 11 to perform a limiting operation, thereby realizing the rapid fixation of the photovoltaic junction box 2.

[0039] See also Figure 4 A second spring 15 is sleeved on one side of the outside of the second guide rod 14, one end of the second spring 15 is connected to the sliding block 16, and the other end of the second spring 15 is connected to the transmission chamber 9. When the first trapezoidal block 10 moves up, the elastic recovery effect of the second spring 15 can make the second trapezoidal block 11 drive the limit block 20 to move out of the limit groove 19, thereby releasing the fixation between the photovoltaic junction box 2 and the docking seat 4.

[0040] See also Figure 1 , Figure 3 and Figure 4 A connecting plate 18 is provided above the photovoltaic junction box 2, and a pull rod 17 is provided at the upper end of the first trapezoidal block 10. One end of the pull rod 17 passes through and extends to the outside of the transmission cavity 9, and the end of the pull rod 17 located outside the transmission cavity 9 is adhered and fixed to the connecting plate 18. By pulling the connecting plate 18, the up and down movement of the pull rod 17 and the first trapezoidal block 10 can be easily controlled, thereby realizing the rapid disassembly and assembly of the photovoltaic junction box 2, and improving the convenience and efficiency of operation.

[0041] See also Figure 4 Limiting grooves 19 are provided on the upper sides of both sides of the photovoltaic combiner box 2, and limiting blocks 20 are adhered and fixed to the inner sides of the second trapezoidal blocks 11. One end of the limiting blocks 20 passes through and extends to the outside of the transmission cavity 9, and the end of the limiting blocks 20 located outside the transmission cavity 9 is adapted to the limiting grooves 19. The precise matching of the limiting blocks 20 and the limiting grooves 19 ensures the stability and firmness of the photovoltaic combiner box 2 after installation, and prevents its shaking and displacement during operation.

[0042] See also Figure 1 , Figure 2 and Figure 6 , docking seats 4 are provided at the four corners of the front end of the mounting plate 1, connecting blocks 7 are provided on both sides of the upper and lower ends of the photovoltaic combiner box 2, the rear ends of the connecting blocks 7 are bonded and fixed with connecting rods 6, the rear ends of the connecting rods 6 are bonded and fixed with rubber blocks 5, and the rubber blocks 5 are all adapted to the docking seats 4. The tight fit between the rubber blocks 5 and the docking seats 4 not only enhances the connection strength between the photovoltaic combiner box 2 and the mounting plate 1, but also plays a role in isolating bolts and preventing oxidation and rusting, thereby extending the service life of the equipment.

[0043] See also Figure 5 , an extrusion plate 25 is arranged inside the T-slot 23, and the extrusion plate 25 is fitted with the T-block 22, and the extrusion plate 25 and the T-slot 23 are connected by a plurality of third springs 24 distributed in a rectangular array, and a shielding block 34 is bonded and fixed to the front end of the T-block 22, and the shielding block 34 is fitted with the holder 21, and the third spring 24 provides a continuous extrusion force for the extrusion plate 25 to ensure a close fit between the T-block 22 and the T-slot 23, thereby preventing the photovoltaic junction box 2 from shaking, and the shielding block 34 can shield the holder 21 to prevent the internal third spring 24 from being exposed to the outside.

[0044] See also Figure 2 A third guide rod 30 is welded on the lower side of the inside of the photovoltaic junction box 2. The third guide rod 30 passes through the moving block 31, and the third guide rod 30 and the moving block 31 are slidably matched. The third guide rod 30 provides a stable sliding track for the moving block 31, ensuring that the moving block 31 can move smoothly and accurately under the drive of the double-threaded transmission rod 29, thereby realizing the opening and closing adjustment of the baffle 32 to ensure the heat dissipation effect.

[0045] Working principle: When in use, place the mounting plate 1 close to the wall, install the bolts through the mounting holes 3, and fix the mounting plate 1 to the wall. At this time, pull the connecting plate 18 to make the T-blocks 22 on both sides of the lower end of the photovoltaic combiner box 2 slide into the inside of the T-slot 23, and slide the photovoltaic combiner box 2 to make its rear end fit with the front end of the mounting plate 1. When the connecting plate 18 is released, under the elastic action of the first spring 13, the first trapezoidal block 10 will move down and squeeze and push the second trapezoidal block 11, and the second trapezoidal block 11 will drive the limit block 20 to be stuck in the inside of the limit slot 19, so that the photovoltaic combiner box 2 can be connected to the fixing seat 8, and the T-block 22 will be locked by the T-slot 23. The limit can prevent the photovoltaic junction box 2 from shaking left and right. The extrusion plate 25 will squeeze the T-block 22 under the elastic action of the third spring 24, so that the T-block 22 is firmly fitted with the T-slot 23, making the installation of the photovoltaic junction box 2 more secure. The first trapezoidal block 10 can be moved up by simply pulling the connecting plate 18 upward to release the extrusion of the second trapezoidal block 11. Under the elastic action of the second spring 15, the second trapezoidal block 11 will drive the limit block 20 to move out of the limit slot 19. At this time, the photovoltaic junction box 2 can be taken out by sliding it forward, realizing the rapid disassembly and assembly of the photovoltaic junction box 2. The operator does not need to repeat the complicated operation process, which is convenient to use.

[0046] When the photovoltaic combiner box 2 is fixed to the mounting plate 1, the connecting block 7 will make the rubber block 5 synchronously snap into the inside of the docking seat 4 through the connecting rod 6. The rubber block 5 snaps into the inside of the docking seat 4 to isolate the bolts from direct contact with the external environment, greatly reducing the risk of oxidation and rust, thereby ensuring the long-term stability and safety of the installation structure. At the same time, the docking of the rubber block 5 and the docking seat 4 can make the connection between the photovoltaic combiner box 2 and the mounting plate 1 more secure;

[0047] When the components in the photovoltaic combiner box 2 are working, heat will be generated, which will cause the temperature to rise. The temperature sensor 26 will detect the temperature inside the photovoltaic combiner box 2, and at the same time, the detected temperature data will be transmitted to the PLC controller 27. The operator can set the standard value temperature inside the PLC controller 27. When the temperature rises to the standard value, the PLC controller 27 will start the motor 28 and the cooling fan 33. The motor 28 will rotate the double-threaded transmission rod 29 through the coupling, and the double-threaded transmission rod 29 will drive the two moving blocks 31 to rotate synchronously. 1 are slidably matched with the third guide rod 30, so the moving blocks 31 are all axially limited, and the rotation of the two moving blocks 31 is converted into opposite or opposite horizontal linear movement. When the two moving blocks 31 move in opposite directions, the baffle 32 will be driven to move synchronously, thereby increasing the contact area between the inside of the photovoltaic combiner box 2 and the external environment. The start-up of the heat dissipation fan 33 will blow air downward, and the accumulated heat can be taken away by the flowing airflow, thereby achieving good internal heat dissipation. When the temperature is normal, the mutual fit of the baffles 32 achieves the function of sealing and protecting the inside of the photovoltaic combiner box, which is convenient for daily use.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A low-voltage intelligent photovoltaic combiner box using carrier communication, comprising a mounting plate (1), wherein mounting holes (3) are provided at four corners inside the mounting plate (1), and a photovoltaic combiner box (2) is provided at the front end of the mounting plate (1), characterized in that: The invention also comprises a fixing seat (8), which is arranged on the upper side of the front end of the mounting plate (1), and the fixing seats (8) are provided with two. A transmission cavity (9) is provided inside the fixing seat (8), and a first trapezoidal block (10) is provided inside the transmission cavity (9). A second trapezoidal block (11) is provided on one side inside the transmission cavity (9), and the second trapezoidal block (11) is fitted with the first trapezoidal block (10). A first guide rod (12) is welded on the other side inside the transmission cavity (9), and a second guide rod (14) is welded on the lower side inside the transmission cavity (9). The first trapezoidal block (10) and the first guide rod (12) and the second trapezoidal block (11) and the second guide rod (14) are connected by sliding blocks (16), and the sliding blocks (16) penetrate the first guide rod (12) and the second guide rod (14), and the sliding blocks (16) are slidably matched with the first guide rod (12) and the second guide rod (14); It also comprises a holder (21) which is arranged on both sides of the lower side of the front end of the mounting plate (1), the inside of each holder (21) is provided with a T-shaped slot (23), the inside of each T-shaped slot (23) is provided with a T-shaped block (22) which is slidably arranged, and one end of the T-shaped block (22) extends to the outside of the T-shaped slot (23), and the end of each T-shaped block (22) located outside the T-shaped slot (23) is connected to the photovoltaic combiner box (2); It also includes a double-threaded transmission rod (29) which is rotatably arranged on the lower side of the interior of the mounting plate (1); both sides of the exterior of the double-threaded transmission rod (29) are threadedly connected to a moving block (31); two baffles (32) are arranged at the lower end of the photovoltaic junction box (2); the baffles (32) are both fitted with the photovoltaic junction box (2); and the lower ends of the moving blocks (31) are both connected to the baffles (32).

2. According to claim 1, a low-voltage intelligent photovoltaic combiner box using carrier communication is characterized in that: A motor (28) is provided on one side of the double-threaded transmission rod (29), and the output end of the motor (28) is transmission-connected to the double-threaded transmission rod (29) via a coupling.

3. According to claim 2, a low-voltage intelligent photovoltaic combiner box using carrier communication is characterized in that: A PLC controller (27) is provided on one side of the lower end of the photovoltaic combiner box (2), and the output end of the PLC controller (27) is electrically connected to the input end of the motor (28); a temperature sensor (26) is provided on the other side of the lower end of the photovoltaic combiner box (2), and the output end of the temperature sensor (26) is electrically connected to the input end of the PLC controller (27); a heat dissipation fan (33) is provided on the upper end of the photovoltaic combiner box (2), and the input end of the heat dissipation fan (33) is electrically connected to the output end of the PLC controller (27).

4. According to claim 1, a low-voltage intelligent photovoltaic combiner box using carrier communication is characterized in that: A first spring (13) is sleeved on the upper side of the outer portion of the first guide rod (12), one end of the first spring (13) is connected to the sliding block (16), and the other end of the first spring (13) is connected to the transmission chamber (9).

5. According to claim 1, a low-voltage intelligent photovoltaic combiner box using carrier communication is characterized in that: A second spring (15) is sleeved on one side of the exterior of the second guide rod (14), one end of the second spring (15) is connected to the sliding block (16), and the other end of the second spring (15) is connected to the transmission chamber (9).

6. According to claim 1, a low-voltage intelligent photovoltaic combiner box using carrier communication is characterized in that: A connecting plate (18) is arranged above the photovoltaic junction box (2), and a pull rod (17) is arranged at the upper end of each of the first trapezoidal blocks (10). One end of each of the pull rods (17) passes through and extends to the outside of the transmission cavity (9), and one end of the pull rod (17) located outside the transmission cavity (9) is bonded and fixed to the connecting plate (18).

7. The low-voltage intelligent photovoltaic combiner box using carrier communication according to claim 1, characterized in that: Limiting grooves (19) are provided on the upper sides of both sides of the photovoltaic combiner box (2), and limiting blocks (20) are bonded and fixed to the inner sides of the second trapezoidal blocks (11), one end of the limiting blocks (20) penetrates and extends to the outside of the transmission cavity (9), and the end of the limiting blocks (20) located outside the transmission cavity (9) is adapted to the limiting grooves (19).

8. The low-voltage intelligent photovoltaic combiner box using carrier communication according to claim 1, characterized in that: The four corners of the front end of the mounting plate (1) are provided with docking seats (4), the upper and lower ends of the photovoltaic junction box (2) are provided with connecting blocks (7) on both sides, the rear ends of the connecting blocks (7) are bonded and fixed with connecting rods (6), the rear ends of the connecting rods (6) are bonded and fixed with rubber blocks (5), and the rubber blocks (5) are compatible with the docking seats (4).

9. The low-voltage intelligent photovoltaic combiner box using carrier communication according to claim 1, characterized in that: An extrusion plate (25) is arranged inside the T-shaped slot (23), and the extrusion plate (25) is fitted with the T-shaped block (22). The extrusion plate (25) and the T-shaped slot (23) are connected via a plurality of third springs (24) distributed in a rectangular array. A cover block (34) is adhesively fixed to the front end of the T-shaped block (22), and the cover block (34) is fitted with the holder (21).

10. The low-voltage intelligent photovoltaic combiner box using carrier communication according to claim 1, characterized in that: A third guide rod (30) is welded to the lower side of the interior of the photovoltaic combiner box (2), the third guide rod (30) passes through the moving block (31), and the third guide rod (30) and the moving block (31) are slidably matched.

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