Photovoltaic switch monitoring device convenient to overhaul and fast to assemble

Abstract

The utility model discloses a photovoltaic switch monitoring device convenient for maintenance and rapid assembly, relates to the technical field of photovoltaic switch monitoring, and aims to solve the problem that a conventional photovoltaic switch cannot be remotely monitored and controlled, and potential safety hazards are caused to line maintenance of workers. The upper surface of the box body is fixedly connected with a connecting sleeve, two ends of the connecting sleeve are respectively and movably inserted with a connecting frame, the two connecting frames are oppositely arranged, the upper end of one connecting frame is rotatably connected with a first screw rod, and the first screw rod penetrates through a threaded hole in the upper end of the other connecting frame; the two connecting frames are each sleeved with a sliding block base in a sliding mode, and a second screw rod is rotationally installed on one sliding block base. And the effects of current monitoring and remote circuit breaking control of the output end of the photovoltaic switch, flexible and convenient installation outside the existing equipment, stable work and strong practicability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic switch monitoring technology, and in particular to a photovoltaic switch monitoring device that is easy to inspect and quickly assemble. Background Technology

[0002] The large-scale grid connection of photovoltaic (PV) power generation equipment has altered the power flow direction from the bottom up, making grid equipment maintenance and safety more challenging. Previously, maintenance only required monitoring the switching status of upstream equipment; inspections by dispatching units were sufficient to identify any potential energization risks. However, with the current direction becoming bidirectional, it's necessary to monitor both upstream and downstream switches. Therefore, maintenance and dispatching departments pay close attention to the switching status of downstream PV power generation switches, needing to obtain and analyze the topology to identify any potential energization hazards at the current power source. Currently, the switching status of PV equipment is not transmitted to the main substation, and the compact cabinet space makes it difficult to place secondary equipment, making malfunctions particularly likely during humid weather in southern China.

[0003] A photovoltaic switch monitoring device that is easy to inspect and quickly assembled is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic switch monitoring device that is easy to maintain and quickly assembled. It can monitor the current at the output terminal of the photovoltaic switch and remotely control the circuit break. It can also be flexibly and conveniently installed on the outside of existing equipment. It is stable in operation and highly practical.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A photovoltaic switch monitoring device that is easy to inspect and quickly assemble includes a housing. A connecting sleeve is fixedly connected to the upper surface of the housing. A connecting bracket is movably inserted into each end of the connecting sleeve. The two connecting brackets are placed opposite each other. A first screw is rotatably connected to the upper end of one of the connecting brackets. The first screw passes through a threaded hole at the upper end of the other connecting bracket. A slider seat is slidably sleeved on the outside of each of the two connecting brackets. A second screw is rotatably installed on one of the slider seats. The second screw passes through a threaded hole on the outer surface of the other slider seat.

[0007] By adopting the above technical solution, it can be quickly and easily installed on the outside of existing equipment.

[0008] Furthermore, multiple end posts are fixedly connected to the inner wall of the enclosure, and an insulating plate is installed at one end of each end post. A smart ammeter, a smart circuit breaker, and a resistor block are fixedly installed on the outer surface of the insulating plate.

[0009] By adopting the above technical solution, remote circuit breaker control operation can be realized, as well as dual monitoring operation, and the monitored data can be remotely transmitted to the monitoring system.

[0010] Furthermore, an electrical connection base is fixedly installed on the bottom surface inside the housing. The intelligent circuit breaker is electrically connected to the electrical connection base, and the intelligent circuit breaker is connected in series at the output terminal of the photovoltaic switch. The intelligent ammeter is connected in series with the resistor block, and the circuit of the intelligent ammeter and the resistor block connected in series is connected in parallel at the output terminal of the intelligent circuit breaker.

[0011] By adopting the above technical solution, the electrical connection of each component is facilitated.

[0012] Furthermore, a dehumidifying shell is fixedly connected to one inner wall of the box body, an air outlet groove is provided on one outer surface of the dehumidifying shell, an air inlet is provided on the upper end face of the dehumidifying shell, and a fan is installed at the air inlet. An installation groove is provided on the inner wall of the box body, and a cooler is fixedly installed inside the installation groove. The cooler is placed inside the dehumidifying shell.

[0013] By adopting the above technical solution, the air circulation is ensured, thus guaranteeing the effective dehumidification operation.

[0014] Furthermore, a semiconductor refrigeration plate is attached to one side of the refrigerator, and an outer cover is fastened to the outer surface of the semiconductor refrigeration plate. A drain outlet is provided on the lower surface of the housing, and the drain outlet is connected to the inner bottom of the dehumidification shell. A water storage tank is installed at the drain outlet.

[0015] By adopting the above technical solution, refrigeration operation can be effectively carried out, and condensate can be collected at the same time.

[0016] Furthermore, the opening of the box is hinged to a door, and an observation window is provided on the outer surface of the door, with a transparent acrylic plate fixedly installed inside the observation window.

[0017] By adopting the above technical solutions, the internal structure of the enclosure can be easily controlled and managed.

[0018] In summary, the beneficial technical effects of this utility model are as follows:

[0019] 1. During installation, the two opposite connecting frames can be sleeved on the outside of the photovoltaic distribution box. Then, the first screw and the second screw are rotated simultaneously to bring the two connecting frames closer to each other and firmly clamp them to the outside of the photovoltaic distribution box. This allows the device to be quickly and conveniently installed on the outside of existing products. The installation operation is flexible and convenient, and it is highly practical. In subsequent use, maintenance operations can be carried out flexibly and conveniently.

[0020] 2. This utility model can improve the convenience of electrical connection by using an electrical connector, and at the same time use an intelligent circuit breaker to control the power output of the photovoltaic system, which can effectively perform remote operation. It also uses a combination of intelligent ammeter and resistor block to monitor the output of the intelligent circuit breaker. When the photovoltaic power supply circuit is disconnected, the intelligent ammeter can actively report the power outage information. This device can perform dual monitoring and remote control operation of the power output of the photovoltaic switch, with strong safety performance, and provides effective protection for the safe operation of the staff.

[0021] 3. During use, the fan can be turned on to circulate the air inside the dehumidifier housing. At this time, the semiconductor cooling plate is activated, which can effectively reduce the temperature of the cooler. When the flowing air passes through the low-temperature cooler, it can achieve effective condensation. The condensate produced can flow into the bottom of the dehumidifier housing and finally into the water storage tank for collection. This structure ensures that the device can work efficiently and stably in humid environments, and its practicality is further improved. Attached Figure Description

[0022] Figure 1 This is a first-view perspective view of the three-dimensional structure of this utility model;

[0023] Figure 2 This is a second perspective view of the three-dimensional structure of this utility model.

[0024] In the diagram: 1. Housing; 2. Connecting sleeve; 3. Connecting frame; 4. First screw; 5. Slider seat; 6. Second screw; 7. Insulating plate; 8. Smart ammeter; 9. Smart circuit breaker; 10. Resistor block; 11. Electrical connection seat; 12. Semiconductor refrigeration plate; 13. Outer cover; 14. Water tank; 15. Door; 16. Dehumidifier housing; 17. Fan; 18. Refrigerator. Detailed Implementation

[0025] The method of this utility model will be further described in detail below with reference to the accompanying drawings.

[0026] Reference Figure 1A photovoltaic switch monitoring device that is easy to maintain and quickly assembled includes a housing 1. A connecting sleeve 2 is fixedly connected to the upper surface of the housing 1. A connecting frame 3 is movably inserted into each end of the connecting sleeve 2. The two connecting frames 3 are placed opposite each other. A first screw 4 is rotatably connected to the upper end of one connecting frame 3. The first screw 4 passes through a threaded hole at the upper end of the other connecting frame 3. A slider seat 5 is slidably sleeved on the outside of each of the two connecting frames 3. A second screw 6 is rotatably installed on one slider seat 5. The second screw 6 passes through a threaded hole on the outer surface of the other slider seat 5. During installation, the two opposite connecting frames 3 can be sleeved on the outside of the photovoltaic distribution box. Then, the first screw 4 and the second screw 6 are rotated simultaneously, so that the two connecting frames 3 are brought close together and firmly clamped to the outside of the photovoltaic distribution box. This allows for quick and convenient installation of the device on the outside of existing products. The installation and operation are flexible and convenient, and the device is highly practical. In subsequent use, maintenance operations can be carried out flexibly and conveniently.

[0027] Reference Figure 1 , Figure 2 Multiple end posts are fixedly connected to the inner wall of the enclosure 1, and an insulating plate 7 is installed at one end of each end post. A smart ammeter 8, a smart circuit breaker 9, and a resistor block 10 are fixedly installed on the outer surface of the insulating plate 7. An electrical connection seat 11 is fixedly installed on the bottom inner surface of the enclosure 1. The smart circuit breaker 9 is electrically connected to the electrical connection seat 11, and the smart circuit breaker 9 is connected in series with the output terminal of the photovoltaic switch. The smart ammeter 8 is connected in series with the resistor block 10, and the circuit of the smart ammeter 8 and the resistor block 10 connected in series is connected in parallel with the output terminal of the smart circuit breaker 9. A door 15 is hinged to the opening of the enclosure 1, and a [missing information - likely a design feature] is provided on the outer surface of the door 15. The device includes an observation window with a transparent acrylic panel fixedly installed inside. An electrical connector 11 facilitates electrical connections, while a smart circuit breaker 9 manages the output power of the photovoltaic system, enabling effective remote operation. A combination of a smart ammeter 8 and a resistor block 10 monitors the output of the smart circuit breaker 9. When the photovoltaic power supply circuit is disconnected, the smart ammeter 8 proactively reports the power outage. This device provides dual monitoring and remote control of the photovoltaic switch's output power, offering strong safety performance and ensuring safe operation for staff.

[0028] Reference Figure 1 , Figure 2A dehumidifier housing 16 is fixedly connected to the inner wall of one side of the housing 1. An air outlet groove is provided on the outer surface of one side of the dehumidifier housing 16. An air inlet is provided on the upper surface of the dehumidifier housing 16, and a fan 17 is installed at the air inlet. A mounting groove is provided on the inner wall of the housing 1, and a cooler 18 is fixedly installed inside the mounting groove. The cooler 18 is placed inside the dehumidifier housing 16. A semiconductor cooling plate 12 is attached to one side of the cooler 18. An outer cover 13 is fastened to the outer surface of the semiconductor cooling plate 12. A drain outlet is provided on the lower surface of the housing 1, and the drain outlet communicates with the inner bottom of the dehumidifier housing 16. A water storage tank 14 is installed at the water inlet. During use, the fan 17 can be turned on, allowing the air inside the housing 1 to circulate through the interior of the dehumidifying shell 16. At this time, the semiconductor cooling plate 12 is activated, which can effectively reduce the temperature of the cooler 18. When the flowing air passes through the low-temperature cooler 18, it can achieve effective condensation. The condensate generated can flow into the bottom of the dehumidifying shell 16 and finally into the water storage tank 14 for collection. This structure ensures that the device can operate efficiently and stably in humid environments, further improving its practicality.

[0029] Working Principle: In use, first install the device at the designated location. During installation, attach the two opposing connecting brackets 3 to the outside of the photovoltaic distribution box. Then, simultaneously rotate the first screw 4 and the second screw 6 to bring the two connecting brackets 3 closer together, firmly clamping and securing them to the outside of the photovoltaic distribution box. This allows for quick and convenient installation of the device onto the existing product. Next, connect the output line of the photovoltaic switch to the electrical connection base 11, and then connect the semiconductor cooling plate 12 and the fan 17 to the electrical connection base 11. Normal operation is then possible. During operation, starting the fan 17 circulates the air inside the housing 1 through the dehumidification shell 16. At this point, the semiconductor cooling plate 12 is activated. The thermoelectric cooling plate 12 effectively reduces the temperature of the cooler 18. When flowing air passes through the low-temperature cooler 18, it can achieve effective condensation. The condensate generated at this time can flow into the bottom of the dehumidification housing 16 and finally into the water storage tank 14 for collection. This structure ensures that the device can operate efficiently and stably in a humid environment. When the circuit needs to be repaired, the intelligent circuit breaker 9 is used to disconnect the power output of the photovoltaic system. At the same time, the combination of intelligent ammeter 8 and resistor block 10 is used to monitor the output of intelligent circuit breaker 9. The current data sent to the server by intelligent ammeter 8 and intelligent circuit breaker 9 can be used to determine whether the power is completely cut off.

[0030] The specific real-time examples described herein are preferred real-time examples of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A photovoltaic switch monitoring device that is easy to inspect and quickly assemble, comprising a housing (1), characterized in that: A connecting sleeve (2) is fixedly connected to the upper surface of the housing (1). A connecting bracket (3) is movably inserted into each end of the connecting sleeve (2). The two connecting brackets (3) are placed opposite each other. A first screw (4) is rotatably connected to the upper end of one of the connecting brackets (3). The first screw (4) passes through the threaded hole at the upper end of the other connecting bracket (3). A slider seat (5) is slidably sleeved on the outside of both connecting brackets (3). A second screw (6) is rotatably installed on one of the slider seats (5). The second screw (6) passes through the threaded hole on the outer surface of the other slider seat (5).

2. The photovoltaic switch monitoring device according to claim 1, which is easy to maintain and quickly assemble, is characterized in that: Multiple end posts are fixedly connected to the inner wall of the box (1), and an insulating plate (7) is installed at one end of the end post. A smart ammeter (8), a smart circuit breaker (9), and a resistor block (10) are fixedly installed on the outer surface of the insulating plate (7).

3. The photovoltaic switch monitoring device according to claim 2, which is easy to maintain and quickly assemble, is characterized in that: An electrical connection base (11) is fixedly installed on the bottom surface inside the housing (1). The intelligent circuit breaker (9) is electrically connected to the electrical connection base (11), and the intelligent circuit breaker (9) is connected in series to the output end of the photovoltaic switch. The intelligent ammeter (8) is connected in series with the resistor block (10), and the circuit of the intelligent ammeter (8) and the resistor block (10) connected in series is connected in parallel to the output end of the intelligent circuit breaker (9).

4. The photovoltaic switch monitoring device according to claim 1, which is easy to inspect and quickly assemble, is characterized in that: A dehumidifying shell (16) is fixedly connected to one side of the inner wall of the housing (1). An air outlet groove is provided on one side of the outer surface of the dehumidifying shell (16). An air inlet is provided on the upper end face of the dehumidifying shell (16), and a fan (17) is installed at the air inlet. An installation groove is provided on the inner wall of the housing (1), and a cooler (18) is fixedly installed inside the installation groove. The cooler (18) is placed inside the dehumidifying shell (16).

5. A photovoltaic switch monitoring device that is easy to inspect and quickly assemble according to claim 4, characterized in that: A semiconductor cooling plate (12) is attached to one side of the cooler (18), and an outer cover (13) is attached to the outer cover of the semiconductor cooling plate (12). A drain outlet is provided on the lower surface of the housing (1), and the drain outlet is connected to the bottom of the dehumidification housing (16). A water storage tank (14) is installed at the drain outlet.

6. A photovoltaic switch monitoring device that is easy to inspect and quickly assemble according to claim 1, characterized in that: The opening of the box (1) is hinged to a door (15), and an observation window is provided on the outer surface of the door (15), and a transparent acrylic plate is fixedly installed inside the observation window.

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