A communication networking connection device and control system for distributed photovoltaic power plants

Abstract

This invention discloses a communication network connection device and control system for distributed photovoltaic (PV) power plants, belonging to the field of PV power plant communication connection devices. The communication network connection device for distributed PV power plants includes a PV power device body, a PV power communication interface and a PV power antenna interface disposed on the PV power device body, the PV power communication interface having multiple conical pins inside; a plug that connects to the PV power communication interface and a threaded cylinder, the plug having a corresponding insert cylinder; multiple elastic metal sheets circumferentially distributed within the insert cylinders; an annular support plate with a pressure sensor; and multiple clamping plates with clamping airbags for fixing the conical pins. This invention can promptly determine the connection status of the pathway, ensuring the long-term reliable operation of the distributed PV power plant, reducing operation and maintenance costs and downtime losses, avoiding the expansion of the fault range due to untimely feedback, and further reducing the operation and maintenance costs and power generation losses of the power plant.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power plant connection technology, and in particular to a communication networking connection device and control system for distributed photovoltaic power plants. Background Technology

[0002] The communication network connection device for distributed photovoltaic (PV) power plants is responsible for connecting inverters, sensors, and other equipment within the PV power plant. It transmits the operating data of these devices to the control center of the power plant via wireless or wired interfaces, and simultaneously receives control commands issued by the control center. It is equivalent to a data relay station and communication node in the distributed PV power plant, solving the networking communication problem when distributed PV equipment is deployed in a dispersed manner. Due to the dispersed equipment and complex outdoor environment of distributed PV power plants, the reliability of their communication network is highly dependent on the mechanical structural stability of the connection device.

[0003] Currently, existing communication network connection devices for distributed photovoltaic power plants lack accurate detection and abnormal early warning mechanisms for connection status. This makes it difficult to detect potential loose connections in a timely manner. If the contact pressure between the pin and the elastic metal plate of the socket gradually decreases due to long-term vibration, temperature deformation, and other factors, and problems such as pin misalignment or separation occur, there will be no timely feedback. This will not only damage the stability of the communication link and affect the normal control of the power plant, but may also cause safety hazards such as local overheating. This seriously restricts the long-term reliable operation of distributed photovoltaic power plants, increases operation and maintenance costs and downtime losses, and may also lead to the expansion of the fault range, further increasing the operation and maintenance costs and power generation losses of the power plant. In view of this, this invention is proposed. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a communication networking connection device and control system for distributed photovoltaic power stations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A communication networking connection device for distributed photovoltaic power plants includes a photovoltaic power unit body and further includes: A photovoltaic power communication interface and a photovoltaic power antenna interface are installed on the main body of the photovoltaic power device. A threaded cylinder is fixedly installed on the photovoltaic power communication interface, and multiple tapered pins are provided inside the photovoltaic power communication interface. A plug that connects to a photovoltaic power communication interface and a threaded cylinder, wherein the plug is provided with a cylinder corresponding to a tapered pin; An elastic metal sheet is disposed inside the insert, and the elastic metal sheet has multiple portions circumferentially distributed inside the insert; An annular support plate is disposed inside the insert, and a pressure sensor is provided on the annular support plate, which is disposed between the elastic metal sheet and the insert. Multiple clamping plates are slidably arranged in a circular pattern inside the insert, and the clamping plates are provided with clamping airbags that are fixed to the conical insert pins.

[0006] Preferably, both the threaded cylinder and the plug are provided with corresponding external threads, and a locking block is threadedly connected to the external threads. The end of the threaded cylinder is provided with a stepped groove, and the plug is provided with a stepped block corresponding to the stepped groove.

[0007] Furthermore, the plug is provided with a plug block, and both the plug block and the stepped block are provided with sealing rings, which abut against the inner wall of the threaded cylinder.

[0008] Preferably, a sliding plate that slidably connects to the insert and cooperates with the conical insert is slidably connected inside the insert, an annular block is fixedly connected inside the insert, a spring is provided between the sliding plate and the annular block, a push rod is provided on the outer wall of the sliding plate, and a piston plate is fixedly connected to the end of the push rod away from the sliding plate.

[0009] Furthermore, the insert is provided with a sealing cavity and a sealing channel connected to the sealing cavity. The insert is also provided with a connecting pipe connected to the sealing channel. The insert is provided with a connecting hole corresponding to the connecting pipe. The connecting hole is located between the piston plate and the inner wall of the insert.

[0010] Furthermore, an annular sealing plate is slidably connected inside the sealing cavity, a connecting rod is fixedly connected to the annular sealing plate, and a clamping plate is disposed at the end of the connecting rod placed inside the insert. The annular sealing plate, the connecting rod, and the clamping plate are all provided with fine holes that communicate with the clamping airbag.

[0011] Furthermore, a conical block is provided on the outer wall of the push rod, which can pass through the annular block, and a trigger switch that cooperates with the conical block is also provided on the inner wall of the insert.

[0012] Furthermore, a fixing block is fixedly connected to the inner wall of the plug. The fixing block has a placement cavity. Multiple staggered long slots are provided at the upper and lower ends of the fixing block. Two insert plates are slidably connected to the fixing block. Multiple through slots corresponding to the long slots are provided on the insert plates. A placement platform is fixedly provided in the placement cavity.

[0013] Furthermore, a support block corresponding to the plug plate is fixedly installed on the inner wall of the photovoltaic power communication interface, and humidity sensors are installed at both the upper and lower ends of the support block.

[0014] A control system for a communication network connection device for distributed photovoltaic power plants specifically includes the following steps: Step 1: Set the detection thresholds for the pressure sensor and humidity sensor; Step 2: Insert the plug into the photovoltaic power communication interface so that the conical pin is inserted into the socket. First, this allows the conical pin to be tightly pressed against the elastic metal sheet to achieve connection. Second, the movement of the clamping plate and clamping airbag can fix the conical pin. Third, the elastic metal sheet will compress the pressure sensor. Step 3: If the value fed back by the pressure sensor is much smaller than the detection threshold of the pressure sensor, it proves that there is an abnormal connection between the tapered pin and the elastic metal sheet. Step four: If the value fed back by the humidity sensor is greater than the detection threshold of the humidity sensor, it indicates that the seal has completely failed, and maintenance personnel should be notified to carry out maintenance.

[0015] Compared with the prior art, the present invention provides a communication network connection device and control system for distributed photovoltaic power stations, which has the following advantages: 1. This communication network connection device for distributed photovoltaic power stations allows the conical pin to be inserted into the socket for fixation and positioning during plug installation. Simultaneously, the conical pin pushes the elastic metal sheet to move, ensuring a tight fit between the pin and the elastic metal sheet, thus completing the connection of the entire path. Furthermore, when the elastic metal sheet is displaced by the conical pin, it also presses against a pressure sensor. The pressure sensor's feedback value determines whether a connection abnormality has occurred, achieving timely feedback and improving the overall safety of the path.

[0016] 2. This communication network connection device for distributed photovoltaic power stations, through the insertion of the conical pin, also drives the clamping plate and clamping airbag to move, thereby fixing the conical pin and preventing it from falling off. The clamping airbag can also expand to further improve the fixing and clamping effect and ensure the stability of the entire channel.

[0017] 3. This communication network connection device for distributed photovoltaic power stations can achieve internal dryness of the photovoltaic power communication interface through the setting of fixing blocks and desiccant, thereby avoiding internal moisture, which may lead to short circuits, fires and other hazards.

[0018] 4. The control system of this communication network connection device for distributed photovoltaic power stations can provide timely feedback on the connection status between the conical pin and the elastic metal sheet through a pressure sensor, and can provide timely feedback on the humidity inside the photovoltaic power communication interface through a humidity sensor, thus providing a safety guarantee for the entire connection path.

[0019] The parts not covered in this device are the same as or can be implemented using existing technologies. This invention can provide feedback on the connection relationship between the conical pin and the elastic metal sheet, promptly determine the connection status of the path, ensure the long-term reliable operation of distributed photovoltaic power stations, reduce operation and maintenance costs and downtime losses, avoid the expansion of the fault range due to untimely feedback, and reduce the operation and maintenance costs and power generation losses of the power station. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a communication network connection device for distributed photovoltaic power stations proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a communication network connection device for distributed photovoltaic power stations proposed in this invention. Figure 2 ; Figure 3 This is a cross-sectional schematic diagram of the photovoltaic power communication interface in a communication networking connection device for distributed photovoltaic power stations proposed in this invention; Figure 4 This invention proposes a communication networking connection device for distributed photovoltaic power stations. Figure 3 An enlarged schematic diagram of part A in the middle; Figure 5 This is a cross-sectional schematic diagram of the threaded cylinder and plug in a communication networking connection device for distributed photovoltaic power stations proposed in this invention. Figure 6 This is a schematic diagram of the plug structure in a communication network connection device for distributed photovoltaic power stations proposed in this invention. Figure 1 ; Figure 7 This is a schematic diagram of the plug structure in a communication network connection device for distributed photovoltaic power stations proposed in this invention. Figure 2 ; Figure 8 This is a cross-sectional view of the plug in a communication networking connection device for distributed photovoltaic power stations proposed in this invention. Figure 1 ; Figure 9 This invention proposes a communication networking connection device for distributed photovoltaic power stations. Figure 8 Enlarged schematic diagram of part B in the middle; Figure 10 This is a cross-sectional view of the plug in a communication networking connection device for distributed photovoltaic power stations proposed in this invention. Figure 2 ; Figure 11 This is a cross-sectional schematic diagram of a fixed block in a communication network connection device for distributed photovoltaic power stations proposed in this invention.

[0021] In the diagram: 1. Photovoltaic power device body; 101. Photovoltaic power communication interface; 102. Photovoltaic power antenna interface; 103. Threaded cylinder; 104. Stepped groove; 105. Conical pin; 106. Support block; 107. Humidity sensor; 2. Plug; 201. Insert block; 202. Stepped block; 203. Sealing ring; 204. Insert cylinder; 205. Locking block; 3. Elastic metal sheet; 301. Annular support plate; 302. Pressure sensor; 4. Sliding plate; 40 1. Spring component; 402. Annular block; 403. Push rod; 404. Piston plate; 405. Connecting hole; 406. Connecting pipe; 407. Sealing channel; 408. Conical block; 409. Trigger switch; 5. Sealing cavity; 501. Annular sealing plate; 502. Connecting rod; 503. Clamping plate; 504. Clamping airbag; 505. Fine hole; 6. Fixing block; 601. Placement cavity; 602. Long groove; 603. Insert plate; 604. Through groove; 605. Placement platform. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Example 1: Reference Figures 1-10A communication networking connection device for distributed photovoltaic (PV) power plants includes a PV power device body 1, a PV power communication interface 101 and a PV power antenna interface 102 disposed on the PV power device body 1, a threaded cylinder 103 fixedly disposed on the PV power communication interface 101, and a plurality of tapered pins 105 disposed inside the PV power communication interface 101; and a plug 2 that plugs into the PV power communication interface 101 and the threaded cylinder 103, the plug 2 having a cylinder corresponding to the tapered pins 105. 204; an elastic metal sheet 3 is disposed inside the insert 204, and the elastic metal sheet 3 has multiple circumferentially distributed inside the insert 204; an annular support plate 301 is disposed inside the insert 204, and a pressure sensor 302 is disposed on the annular support plate 301, and the pressure sensor 302 is disposed between the elastic metal sheet 3 and the insert 204; multiple clamping plates 503 are circumferentially distributed and slidably disposed inside the insert 204, and the clamping plates 503 are provided with clamping airbags 504 fixed to the conical insert 105.

[0025] In this embodiment, during use, the plug 2 can be directly plugged into the photovoltaic power communication interface 101. Specifically, when the plug 2 is inserted, the tapered pin 105 will be inserted into the socket 204. Since the tapered pin 105 is tapered, it will cause the circumferentially arranged elastic metal sheet 3 to expand when inserted, thereby deforming it and compressing the pressure sensor 302. In this application, the pins of the pressure sensor 302 are connected to the control module, i.e., the MCU interface, inside the photovoltaic power device body 1 through wires via soldering. The tapered pin 105 is tightly connected to the socket 204. When connected, the pressure sensor 302 will be continuously subjected to compressive force. By observing the change of this compressive force, the connection effect between the conical pin 105 and the elastic metal sheet 3 inside the plug 204 can be clearly demonstrated. If the pressure of the pressure sensor 302 is too low or loses pressure, it can be determined that the connection between the conical pin 105 and the elastic metal sheet 3 is broken and no longer in contact. This can remind the staff to perform maintenance and repair operations, thereby achieving the effect of timely feedback and avoiding problems such as internal overheating of the photovoltaic power device body 1 caused by continuous disconnection, thus preventing the expansion of the fault range.

[0026] In this application, when the conical pin 105 is inserted, multiple clamping plates 503 and clamping airbags 504 will also move, thereby clamping the conical pin 105 with the clamping airbags 504, thus achieving a fixing effect and ensuring the stability of the connection of the conical pin 105.

[0027] Example 2: Refer to Figures 1-10A communication networking connection device for distributed photovoltaic power stations is basically the same as that in Embodiment 1. Furthermore, the threaded cylinder 103 and the plug 2 are both provided with corresponding external threads, and a locking block 205 is threadedly connected to the external threads. The end of the threaded cylinder 103 is provided with a stepped groove 104, and the plug 2 is provided with a stepped block 202 corresponding to the stepped groove 104.

[0028] Reference Figures 1-3 and Figures 5-7 The plug 2 is provided with a plug block 201, and both the plug block 201 and the stepped block 202 are provided with sealing rings 203, which abut against the inner wall of the threaded cylinder 103.

[0029] In this embodiment, when the plug 2 is inserted, the stepped block 202 can be inserted into the stepped groove 104. At the same time, under the action of the sealing ring 203, the plug 2 and the photovoltaic power communication interface 101 can be tightly fixed. Meanwhile, the locking block 205 is rotated so that it is threadedly connected to the threaded cylinder 103 and the external thread on the outer wall of the plug 2, thereby achieving a fixed connection between the plug 2 and the threaded cylinder 103. At the same time, a nut can be threadedly connected to the external thread on the plug 2 for fixation, thereby improving the stability of the connection.

[0030] Reference Figure 5 , Figure 8 , Figure 9 and Figure 10 The insert 204 has a sliding plate 4 that cooperates with the conical insert 105. The insert 204 has an annular block 402 fixedly connected inside. A spring 401 is provided between the sliding plate 4 and the annular block 402. A push rod 403 is provided on the outer wall of the sliding plate 4. A piston plate 404 is fixedly connected to the end of the push rod 403 away from the sliding plate 4.

[0031] Reference Figure 5 , Figure 8 , Figure 9 and Figure 10 The insert 204 is provided with a sealing cavity 5 and a sealing channel 407 connected to the sealing cavity 5. The insert 204 is also provided with a connecting pipe 406 connected to the sealing channel 407. The insert 204 is provided with a connecting hole 405 corresponding to the connecting pipe 406. The connecting hole 405 is located between the piston plate 404 and the inner wall of the insert 204.

[0032] Reference Figure 5 , Figure 8 , Figure 9 and Figure 10An annular sealing plate 501 is slidably connected inside the sealing cavity 5. A connecting rod 502 is fixedly connected to the annular sealing plate 501. A clamping plate 503 is disposed at one end of the connecting rod 502 inside the insert 204. The annular sealing plate 501, the connecting rod 502 and the clamping plate 503 are all provided with fine holes 505 that communicate with the clamping airbag 504.

[0033] In this embodiment, after the conical pin 105 is inserted into the insert 204, it not only abuts against the elastic metal sheet 3 to achieve a connection effect, but its end also pushes the slider 4 to move. When the slider 4 moves, it drives the piston plate 404 to move through the push rod 403, thereby squeezing the gas between the piston plate 404 and the inner wall of the insert 204, so that it enters the connecting pipe 406 through the connecting hole 405, and then enters the sealing cavity 5 through the sealing channel 407, thereby pushing the annular sealing plate 501 inside the sealing cavity 5 to move, and then driving the clamping plate 503 to move through the connecting rod 502. 503 will drive the clamping airbag 504 to move and clamp the conical needle 105, thus limiting the conical needle 105. Secondly, the annular sealing plate 501, the connecting rod 502 and the clamping plate 503 are all provided with fine holes 505 that communicate with the clamping airbag 504. When there is too much gas between the annular sealing plate 501 and the inner wall of the top of the sealing cavity 5, the excess gas will also enter the clamping airbag 504 through the fine holes 505, thereby causing the clamping airbag 504 to expand, further realizing the clamping of the conical needle 105, improving the stability of the clamping, and thus making the insertion effect of the conical needle 105 better.

[0034] Secondly, in actual use, refer to Figure 5 and Figure 7 The outer wall of the plug 2 is also provided with an air inlet that communicates with the plug tube 204. The air inlet is also provided with a one-way valve, which can realize auxiliary air intake and air filling operations, and facilitate the overall use effect.

[0035] Example 3: Refer to Figures 1-11 A communication networking connection device for distributed photovoltaic power stations is basically the same as that in Embodiment 2. Furthermore, the outer wall of the push rod 403 is provided with a conical block 408, which can pass through the annular block 402. The inner wall of the insert 204 is also provided with a trigger switch 409 that cooperates with the conical block 408.

[0036] In this embodiment, when the conical pin 105 pushes the slider 4 to move, it will drive the push rod 403 to move, and at the same time drive the conical block 408 connected to the push rod 403 to move. When the conical block 408 contacts the trigger switch 409, it will cause the trigger switch 409 to be compressed. Specifically, in this application, the trigger switch 409 adopts the waterproof micro switch in the prior art. Its stationary contact is connected to the external communication or power supply line through the wire; the moving contact is connected to the rear end of the elastic metal sheet 3; the front end of the elastic metal sheet 3 is the conductive contact area. After the conical pin 105 is inserted, it contacts the elastic metal sheet 3. At this time, if the trigger switch 409 is in the pressed state, that is, the moving and stationary contacts of the trigger switch 409 are connected, the elastic metal sheet 3 and the external wire form a complete circuit.

[0037] Reference Figure 11 The inner wall of the plug 2 is also fixedly connected to a fixing block 6. The fixing block 6 has a placement cavity 601. The upper and lower ends of the fixing block 6 are respectively provided with a plurality of staggered long slots 602. Two insert plates 603 are slidably connected to the fixing block 6. The insert plates 603 are provided with a plurality of through slots 604 corresponding to the long slots 602. A placement platform 605 is fixedly provided in the placement cavity 601.

[0038] Reference Figure 3 , Figure 4 and Figure 11 The inner wall of the photovoltaic power communication interface 101 is fixedly provided with a support block 106 corresponding to the plug plate 603, and humidity sensors 107 are provided at both the upper and lower ends of the support block 106.

[0039] In this embodiment, in the initial state, the insert plate 603 is pulled out from the fixing block 6. At this time, the through groove 604 on the insert plate 603 and the long groove 602 on the fixing block 6 are misaligned. Then, desiccant is placed into the placement cavity 601 inside the fixing block 6 through its end, and then its end is sealed by the sealing block to prevent the desiccant from flowing out. At this time, since the long groove 602 and the through groove 604 are misaligned, it can be ensured that the desiccant will not leak. Then, when the plug 2 is inserted, the end of the insert plate 603 will first contact the support block 106 inside the photovoltaic power communication interface 101, thereby pushing the insert plate 603 to move. At this time, as the insert plate 603 moves, the through groove 604 on the insert plate 603 will move, thereby moving to a position opposite to the long groove 602. The long groove 602 provided above the fixing block 6 allows the desiccant to fully contact the air above. The drying effect is achieved when the long groove 602 below the fixing block 6 is opened, the desiccant in the placement cavity 601 falls through the long groove 602, and the remaining desiccant remains on the placement platform 605. The desiccant remaining on the placement platform 605 can dry the upper and middle areas, while the fallen desiccant can dry the lower and middle areas, thus achieving an overall drying effect. However, as the usage time increases, gaps may gradually appear at the connection between the plug 2 and the threaded cylinder 103. If these gaps are not detected in time, rainwater or other impurities may enter, leading to poor contact or short circuit accidents, thus affecting the operation of the entire process. Therefore, this application sets a humidity sensor 107 at both the upper and lower ends of the support block 106. If the internal area is too humid, it can remind the maintenance personnel to carry out maintenance, increase the sealing performance, and improve the stability of use.

[0040] Example 4: A control system for a communication network connection device for distributed photovoltaic power plants, specifically including the following steps: First, set the detection thresholds for pressure sensor 302 and humidity sensor 107. Then, insert plug 2 into photovoltaic power communication interface 101, so that conical pin 105 is inserted into socket 204. This ensures that conical pin 105 is tightly pressed against elastic metal sheet 3, achieving connection. Second, the movement of clamping plate 503 and clamping airbag 504 can fix conical pin 105. Third, elastic metal sheet 3 will compress pressure sensor 302, forming pressure feedback. If the value fed back by pressure sensor 302 is much smaller than the detection threshold of pressure sensor 302, it proves that there is an abnormal connection between conical pin 105 and elastic metal sheet 3. Similarly, if the value fed back by humidity sensor 107 is greater than the detection threshold of humidity sensor 107, it indicates that the seal has completely failed, reminding maintenance personnel to perform maintenance.

[0041] The pressure sensor is specifically a miniature piezoresistive pressure sensor with a volume of 2mm×1mm×0.5mm and a measurement range of 0-5N. The pressure sensor is electrically connected to the MCU in the photovoltaic power device. During normal connection: After the conical pin 105 is inserted, it squeezes the elastic metal sheet 3. The pressure value detected by the pressure sensor 302 is ≥ the preset threshold of 1.5N, indicating that the conical pin 105 and the elastic metal sheet 3 are tightly fitted and there is no risk of separation. When the connection is loose: the pressure value is <1.5N and >0.5N, indicating that the vibration caused the conical pin 105 to shift, the contact pressure is insufficient, and there are signs of separation. When completely separated: the pressure value ≤ 0.5N indicates that the conical pin 105 and the elastic metal sheet 3 have lost contact, and the conductive path is interrupted.

[0042] Specifically, in this application, the 1.5N pressure threshold is derived through the correlation formula between contact pressure and vibration resistance, assuming the static friction coefficient between the conical pin 105 and the elastic metal sheet 3 inside the insert 204 is... The vibration level experienced by the tapered pin 105 is (Unit is) The mass of the tapered pin is (Unit: kg), then the minimum contact pressure at which the tapered pin 105 will not loosen. Must meet

[0043] The inertial force generated by vibration, and the static friction force. Inertial forces need to be counteracted to prevent the tapered pin 105 from loosening. In this application, the mass of the tapered pin 105 is... 0.01kg, vibration acceleration of a photovoltaic power station It is approximately 1.5g. The static friction coefficient u between the elastic metal sheet 3 and the conical pin 105 is 0.1. Therefore, the pressure threshold is set at 1.5N, which can be adjusted according to the specific usage conditions.

[0044] The humidity sensor 107 is specifically an electronic humidity sensor that collects humidity data from the photovoltaic power communication interface 101 at a preset cycle. The humidity sensor transmits the humidity value to the MCU built into the photovoltaic power device body 1 via an I2C or SPI digital interface. The humidity threshold parameter is 30%RH. When the humidity value detected by the humidity sensor is ≤30%RH, it indicates that the internal humidity is low, the sealing connection is good, the normal sampling cycle is maintained, and no additional operation is triggered. When 30%RH < humidity value ≤60%RH, it indicates that the sealing has become loose, prompting maintenance personnel to indicate that the seal may have failed. When the humidity value >60%RH, it indicates that the seal has completely failed, reminding maintenance personnel to carry out maintenance.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A communication networking connection device for distributed photovoltaic power stations, comprising a photovoltaic power unit body (1), characterized in that, Also includes: A photovoltaic power communication interface (101) and a photovoltaic power antenna interface (102) are provided on the main body (1) of the photovoltaic power device. A threaded cylinder (103) is fixedly provided on the photovoltaic power communication interface (101), and multiple tapered pins (105) are provided inside the photovoltaic power communication interface (101). A plug (2) that is connected to a photovoltaic power communication interface (101) and a threaded cylinder (103) is provided on the plug (2) with a cylinder (204) corresponding to a conical pin (105). Multiple elastic metal sheets (3) are circumferentially distributed inside the insert (204); An annular support plate (301) is disposed inside the insert (204). A pressure sensor (302) is provided on the annular support plate (301), and the pressure sensor (302) is disposed between the elastic metal sheet (3) and the insert (204). Multiple clamping plates (503) are slidably arranged in a circumferential distribution inside the insert (204), and the clamping plates (503) are provided with clamping airbags (504) for fixing the conical insert (105). The insert (204) has a sliding plate (4) that slidably connects to the conical insert (105). An annular block (402) is fixedly connected inside the insert (204). A spring (401) is provided between the sliding plate (4) and the annular block (402). A push rod (403) is provided on the outer wall of the sliding plate (4). A piston plate (404) is fixedly connected to the end of the push rod (403) away from the sliding plate (4). The insert (204) has a sealing cavity (5) and a sealing channel (407) communicating with the sealing cavity (5). The insert (204) also has a connecting pipe communicating with the sealing channel (407). (406) The insert (204) is provided with a connection hole (405) corresponding to the connecting tube (406). The connection hole (405) is located between the piston plate (404) and the inner wall of the insert (204). An annular sealing plate (501) is slidably connected in the sealing cavity (5). A connecting rod (502) is fixedly connected to the annular sealing plate (501). The clamping plate (503) is located at one end of the connecting rod (502) inside the insert (204). The annular sealing plate (501), the connecting rod (502) and the clamping plate (503) are all provided with fine holes (505) that communicate with the clamping airbag (504).

2. The communication networking connection device for distributed photovoltaic power stations according to claim 1, characterized in that, Both the threaded cylinder (103) and the plug (2) are provided with corresponding external threads. A locking block (205) is threaded onto the external thread. The end of the threaded cylinder (103) is provided with a stepped groove (104), and the plug (2) is provided with a stepped block (202) corresponding to the stepped groove (104).

3. A communication networking connection device for distributed photovoltaic power stations according to claim 2, characterized in that, The plug (2) is provided with a plug block (201), and a sealing ring (203) is provided on the plug block (201) and the stepped block (202). The sealing ring (203) abuts against the inner wall of the threaded cylinder (103).

4. A communication networking connection device for distributed photovoltaic power stations according to claim 1, characterized in that, The outer wall of the push rod (403) is provided with a conical block (408), which can pass through the annular block (402). The inner wall of the insert (204) is also provided with a trigger switch (409) that cooperates with the conical block (408).

5. A communication networking connection device for distributed photovoltaic power stations according to any one of claims 1-4, characterized in that, The inner wall of the plug (2) is also fixedly connected to a fixing block (6). The fixing block (6) is provided with a placement cavity (601). The upper and lower ends of the fixing block (6) are respectively provided with a plurality of staggered long slots (602). Two insert plates (603) are slidably connected on the fixing block (6). The insert plates (603) are provided with a plurality of through slots (604) corresponding to the long slots (602). A placement platform (605) is fixedly provided in the placement cavity (601).

6. A communication networking connection device for distributed photovoltaic power stations according to claim 5, characterized in that, The inner wall of the photovoltaic power communication interface (101) is fixedly provided with a support block (106) corresponding to the plug plate (603), and humidity sensors (107) are provided at both the upper and lower ends of the support block (106).

7. A control method for a communication network connection device for a distributed photovoltaic power station, used in the communication network connection device for a distributed photovoltaic power station as described in claim 6, characterized in that, Specifically, the following steps are included: Step 1: Set the detection thresholds for the pressure sensor (302) and the humidity sensor (107); Step 2: Insert the plug (2) into the photovoltaic power communication interface (101) so that the conical pin (105) is inserted into the socket (204), thereby enabling: First, the conical pin (105) to be tightly abutted against the elastic metal sheet (3) to achieve connection; Second, the conical pin (105) can be fixed by the movement of the clamping plate (503) and the clamping airbag (504); Third, the elastic metal sheet (3) will compress the pressure sensor (302). Step 3: If the value fed back by the pressure sensor (302) is much smaller than the detection threshold of the pressure sensor (302), it proves that there is an abnormal connection between the conical pin (105) and the elastic metal sheet (3). Step 4: If the value fed back by the humidity sensor (107) is greater than the detection threshold of the humidity sensor (107), it indicates that the seal has completely failed and the maintenance personnel are reminded to carry out maintenance.

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