Master-slave interchangeable medium-voltage power line carrier communication device

Abstract

This application relates to a medium-voltage power line carrier communication device with master-slave interchangeability, comprising a base shell and a cover shell. The base shell has a first threaded hole, a limiting slot, an information processing module mounting area, a limiting block, and a medium-voltage carrier communication module. The cover shell has a first stud, a first display screen, and a first groove. The first threaded hole of the base shell is threadedly connected to the first stud of the cover shell. The first display screen of the cover shell has limiting protrusions on both sides inside, and the limiting protrusions of the cover shell are fitted into the limiting slot of the base shell. The edge of the main body of the cover shell has a first groove, and a first elastic sealing ring is embedded in the first groove. The mating structure of the cover shell and the base shell presents a semi-enclosed structure, wherein the enclosed area is the information processing module mounting area, and the unenclosed area has a 4G module box. The limiting block is fixedly installed on the base shell, and the limiting block fits against the inner side of the cover shell. This application has the technical effect of combining and protecting the device module.

Description

Technical Field

[0001] This application relates to the technical field of communication equipment protection, and in particular to a medium-voltage power line carrier communication device with master-slave interchangeability. Background Technology

[0002] Currently, in power systems, medium-voltage carrier communication equipment plays a crucial role in achieving reliable power data transmission and distribution automation.

[0003] Existing medium-voltage power line carrier communication equipment has many problems in terms of protection performance that urgently need to be solved. In terms of structural stability, the traditional equipment's outer casing connection method is prone to loosening under conditions such as transportation bumps and external impacts, leading to damage to internal components. Furthermore, dust and other impurities can easily penetrate the equipment, corroding electronic components and affecting normal operation. For critical modules, there is a lack of effective protection measures. Under complex electromagnetic environments and harsh weather conditions, modules are susceptible to interference and moisture damage, reducing the equipment's communication quality. Traditional medium-voltage power line carrier communication equipment can only function as a master carrier communication device and does not have the function of slave device communication. Therefore, manufacturers must specify that one master unit is paired with N slave units when supplying the equipment.

[0004] Regarding the aforementioned technologies, the applicant believes that the module installation method is not stable enough and has a short service life. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a medium-voltage power line carrier communication device with master-slave interchangeability.

[0006] This application provides a medium-voltage power line carrier communication device with master-slave interchangeability, which adopts the following technical solution:

[0007] A master-slave interchangeable medium-voltage power line carrier communication device includes a base shell and a cover shell. The base shell has a first threaded hole, a limiting slot, an information processing module mounting area, a limiting block, and a medium-voltage carrier communication module. The cover shell has a first stud, a first display screen, and a first groove. The first threaded hole of the base shell is threadedly connected to the first stud of the cover shell. The first display screen of the cover shell has limiting protrusions on both sides inside, and the limiting protrusions of the cover shell are fitted into the limiting slot of the base shell. The edge of the main body of the cover shell has a first groove, and a first elastic sealing ring is embedded in the first groove. The mating structure of the cover shell and the base shell presents a semi-enclosed structure, wherein the enclosed area is the information processing module mounting area, and the unenclosed area has a 4G module box. The limiting block is fixedly installed on the base shell and fits against the inner side of the cover shell. The base shell is provided with a master-slave switching module interface, and a cover is provided on the master-slave switching module interface.

[0008] By adopting the above technical solution, the first threaded hole of the bottom shell and the first stud of the cover shell are connected by threads to achieve detachable fixation of the bottom shell and the cover shell, ensuring the stability of the shell structure. The limiting slot and the limiting protrusion of the cover shell are fitted together to provide lateral positioning for the first display screen, preventing misalignment during assembly and providing dedicated installation space for the information processing module. The module is fixed and the layout is optimized by the screw hole array. The limiting block fits against the inner side of the cover shell to limit the vertical displacement of the cover shell and enhance the overall rigidity of the shell shell, especially to prevent the cover shell from deforming or loosening when subjected to impact. The first display screen provides a visual interface to display the operating status of the device. The first groove and the first elastic sealing ring form a sealing barrier at the junction of the cover shell and the bottom shell to prevent rainwater and dust from entering.

[0009] Preferably, the bottom of the base shell is provided with an openable and closable inspection door, which is connected to the base shell via a hinge. The hinge is fixedly connected to the base shell, and the inspection door is hinged to the hinge.

[0010] By adopting the above technical solution, the access door provides direct access to the internal modules of the bottom shell, allowing for maintenance, battery replacement, or circuit repair without disassembling the entire shell. The openable design avoids damage to the sealing structure caused by frequent disassembly of the shell, thus extending the service life of the equipment.

[0011] Preferably, the module mounting area is provided with screw holes, and corresponding screws are provided at the screw holes. The information processing module is fixed to the bottom shell by screws and screw thread connection.

[0012] By adopting the above technical solution, the screw holes installed on the bottom shell serve as the mechanical fixing base for the information processing module. Through the threaded engagement with the screws, the module is rigidly connected to the bottom shell.

[0013] Preferably, the 4G module box includes a box body and a base plate. The box body includes a second stud and a second groove. The base plate is also provided with a second threaded hole. The second stud on the box body is threadedly connected to the second threaded hole on the base plate. A second elastic sealing ring is embedded in the second groove.

[0014] Preferably, the bottom of the base plate of the 4G module box is provided with a protruding edge, and a hollow opening is provided at the corresponding position of the cover to allow the protruding edge to be inserted therein. Mounting holes are provided on both sides of the protruding edge, and bolts are inserted into the mounting holes. The other end of the bolt is provided with a nut for threaded connection with it.

[0015] Preferably, the upper surface of the 4G module box is provided with a second display screen.

[0016] By adopting the above technical solution, the second stud mates with the second threaded hole of the base plate, and the box is fastened to the base plate through threaded connection, forming a closed cavity to protect the internal 4G module. This ensures structural stability during transportation and vibration, and prevents the module from loosening or shifting. The second groove is embedded with a second elastic sealing ring, which achieves waterproof and dustproof sealing of the module box through compression deformation, isolating the 4G module from external moisture and dust corrosion, while shielding internal electromagnetic signals and reducing external interference. The convex edge is inserted into the corresponding hollow opening of the cover, and bolts are inserted into the mounting holes to achieve precise positioning of the module box and the outer shell, preventing lateral displacement.

[0017] Preferably, the bottom of the bottom shell is provided with a heat dissipation block array, the heat dissipation blocks extend perpendicularly to the surface of the bottom shell body, and the heat dissipation blocks are fixedly connected to the bottom shell.

[0018] By adopting the above technical solution, the sheet-like structure extending perpendicularly to the surface of the bottom shell significantly increases the contact area with air, accelerates heat conduction and convection heat dissipation efficiency, and reduces the temperature of heat-generating components such as the information processing module inside the bottom shell.

[0019] Preferably, the medium-voltage carrier communication module includes a serial communication circuit, a carrier control circuit, a carrier transmitting circuit, an analog modulation circuit, a carrier receiving circuit, and a signal coupling circuit. The serial communication circuit and the carrier control circuit are bidirectionally connected, the carrier control circuit is unidirectionally connected to the carrier transmitting circuit, the carrier transmitting circuit is unidirectionally connected to the signal coupling circuit, the signal coupling circuit is unidirectionally connected to the carrier receiving circuit, the carrier receiving circuit is unidirectionally connected to the analog modulation circuit, and the analog modulation circuit is unidirectionally connected to the carrier control circuit.

[0020] By adopting the above technical solution, the serial communication circuit realizes serial data communication between the module and external devices. It is the channel for data to enter and exit the carrier communication module. The carrier control circuit controls and coordinates the entire carrier communication process, managing the transmission, reception, modulation and demodulation of signals. The carrier transmission circuit loads the data to be transmitted onto the carrier signal and sends out the modulated carrier signal. The analog modulation circuit modulates the received carrier signal to make it meet the communication requirements. The carrier receiving circuit receives the carrier signal transmitted through the signal coupling circuit for subsequent processing. The signal coupling circuit realizes the coupling and separation of the carrier signal between the communication line and the carrier transmission and reception circuits, ensuring effective signal transmission.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The first threaded hole of the bottom shell and the first stud of the cover shell are connected by threads to achieve detachable fixation of the bottom shell and the cover shell, ensuring the stability of the shell structure. The limiting slot and the limiting protrusion of the cover shell are fitted together to provide lateral positioning for the first display screen, prevent misalignment during assembly, and provide dedicated installation space for the information processing module. The module is fixed and the layout is optimized by the screw hole array. The limiting block fits against the inner side of the cover shell to limit the vertical displacement of the cover shell and enhance the overall rigidity of the shell shell, especially to prevent the cover shell from deforming or loosening when subjected to impact. The first display screen provides a visual interface to display the operating status of the device. The first groove and the first elastic sealing ring form a sealing barrier at the junction of the cover shell and the bottom shell to prevent rainwater and dust from entering.

[0023] 2. The serial communication circuit enables serial data communication between the module and external devices. It serves as the channel for data to enter and exit the carrier communication module. The carrier control circuit controls and coordinates the entire carrier communication process, managing signal transmission, reception, modulation, and demodulation. The carrier transmission circuit loads the data to be transmitted onto the carrier signal and sends out the modulated carrier signal. The analog modulation circuit modulates the received carrier signal to meet communication requirements. The carrier receiving circuit receives the carrier signal transmitted through the signal coupling circuit for subsequent processing. The signal coupling circuit couples and separates the carrier signal between the communication line and the carrier transmission and reception circuits, ensuring effective signal transmission, providing a synchronization reference for carrier signal transmission and reception, and improving communication reliability. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall embodiment and its installation.

[0025] Figure 2 This is a schematic diagram of the bottom shell.

[0026] Figure 3 This is a schematic diagram of the casing.

[0027] Figure 4 This is a schematic diagram of the 4G module box.

[0028] Figure 5 This is a schematic diagram of the base plate of the 4G module box.

[0029] Figure 6 This is a system diagram of a medium-voltage carrier communication module.

[0030] Explanation of reference numerals in the attached drawings: 1. Bottom shell; 11. First threaded hole; 12. Limiting slot; 13. Information processing module installation area; 131. Screw hole; 14. Limiting block; 15. Inspection door; 16. Heat sink; 17. First groove; 171. First elastic sealing ring; 2. Cover; 21. First stud; 22. First display screen; 3. 4G module box; 31. Box body; 311. Second stud; 312. Second groove; 313. Second elastic sealing ring; 314. Second display screen; 32. Base plate; 321. Second threaded hole; 322. Protruding edge; 323. Mounting hole; 324. Bolt; 4. Medium voltage carrier communication module; 41. Serial communication circuit; 42. Carrier control circuit; 43. Carrier transmitting circuit; 44. Analog modulation circuit; 45. Carrier receiving circuit; 47. Signal coupling circuit. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0032] This application discloses a medium-voltage power line carrier communication device with master-slave interchangeability. (Refer to...) Figure 1-3The main structure of the medium-voltage carrier communication equipment consists of a bottom shell 1 and a cover shell 2. The bottom shell 1 serves as the basic support component and is provided with a first threaded hole 11, a limiting slot 12, an information processing module mounting area 13, and a limiting block 14. The first threaded hole 11 provides an interface for threaded connection. The limiting slot 12 is groove-shaped and is used to engage with the limiting protrusions on both sides of the inside of the first display screen 22. The information processing module mounting area 13 on the bottom shell 1 is provided with regularly arranged screw holes 131 to facilitate the fixing of the information processing module. The limiting block 14 is fixedly installed on the bottom shell 1 by welding or integral molding. The cover shell 2 serves as the covering component and is provided with a first stud 21, a first display screen 22, and a first groove 17. The first stud 21 corresponds to the first threaded hole 11 of the bottom shell 1 to facilitate threaded connection. The first groove 17 is set around the edge of the main body of the cover shell 2, and its depth and width can be adapted to the first elastic sealing ring 171. During assembly, the cover shell is... The first stud 21 of the cover 2 is aligned with the first threaded hole 11 of the bottom shell 1, and a threaded connection is achieved by using a tool. At the same time, the limiting protrusion of the first display screen 22 of the cover 2 is embedded into the limiting slot 12 of the bottom shell 1 to complete the lateral positioning. Then, the first elastic sealing ring 171 is embedded in the first groove 17, so that the main body of the cover 2 and the bottom shell 1 form a semi-enclosed structure. The enclosed area accurately covers the information processing module installation area 13. The limiting block 14 fits tightly against the inner side of the cover 2. An openable maintenance door 15 is installed at the bottom of the bottom shell 1. When it is necessary to maintain the module inside the bottom shell 1, replace the battery, or repair the circuit, it is not necessary to disassemble the entire shell. Just open the maintenance door 15 to directly access the internal components, which greatly improves the convenience of maintenance. A heat sink 16 is installed at the bottom of the bottom shell 1. The heat sink 16 is made of metal and is vertically fixed to the surface of the main body of the bottom shell 1 by welding. Its shape is usually long strip to increase the contact area with air.

[0033] refer to Figure 4-5The 4G module box 3 consists of a box body 31 and a base plate 32. The box body 31 is provided with a second stud 311 and a second groove 312. The second stud 311 is distributed on the edge of the box body 31 or at a specific position. The second groove 312 is set around the bottom edge of the box body 31 for embedding a second elastic sealing ring 323. The base plate 32 is provided with a second threaded hole 321 corresponding to the position of the second stud 311, and a protruding edge 322 is provided at the bottom. The protruding edge 322 has mounting holes 323 on both sides. The second elastic sealing ring 313 is first embedded in the second groove of the box body 31. Inside the slot 312, the second stud 311 of the box 31 is aligned with the second threaded hole 321 of the base plate 32. The two can be threaded together using a tool to form a closed cavity to protect the internal 4G module. Then, the protruding edge 322 of the base plate 32 of the 4G module box 3 is inserted into the corresponding hollow opening of the cover 2 to make the two fit precisely. Then, the bolt 324 is inserted into the mounting hole 323, and the nut is screwed on the other end of the bolt 324 to achieve a fixed connection between the 4G module box 3 and the outer shell. At the same time, the second display screen 314 is installed on the upper surface of the box 31.

[0034] refer to Figure 6 The transmitting pin of the serial communication circuit 41 is connected to the receiving pin of the carrier control circuit 42, and the receiving pin is connected to the transmitting pin of the carrier control circuit 42. The output control signal pin of the carrier control circuit 42 is connected to the control signal input pin of the carrier transmitting circuit 43. The control signal output pin of the carrier control circuit 42 is connected to the control signal input terminal of the analog modulation circuit 44. The signal output pin of the carrier receiving circuit 45 is connected to the signal input pin of the analog modulation circuit 44. The power output pin of the carrier transmitting circuit 43 is connected to the input pin of the signal coupling circuit 47, and the output pin of the signal coupling circuit 47 is connected to the input pin of the carrier receiving circuit 45. The same matching transmission line is used for connection. A master-slave switching module interface is provided on the bottom shell 1, and the master-slave switching module interface is covered by a cover (not shown in the figure).

[0035] The working principle of the master-slave interchangeable medium-voltage power line carrier communication device in this application is as follows: the bottom shell 1 and the cover shell 2 are connected by threads, which can provide a stable structural foundation for the shell and withstand external pressure and impact. The engagement of the limiting slot 12 and the limiting protrusion ensures that the first display screen 22 will not be misaligned during assembly, ensuring the normal realization of the display function. The information processing module installation area 13 is firmly fixed to the information processing module through the screw hole 131 and screws, so that it works stably. The limiting block 14 restricts the displacement of the cover shell 2, enhances the overall rigidity of the shell, and prevents the cover shell 2 from deforming or loosening when subjected to impact. The first groove 1 The 7 and the first elastic sealing ring 171 work together to form a sealing barrier at the junction of the cover 2 and the bottom shell 1, which can effectively block the intrusion of rainwater, dust and other external debris, and protect the normal operation of internal information processing modules and other components. When it is necessary to maintain the modules inside the bottom shell 1, replace the battery or repair the circuit, it is not necessary to disassemble the entire shell. Just open the maintenance door 15 to directly access the internal components, which greatly improves the convenience of maintenance. The design of the openable maintenance door 15 avoids the problem of damage to the sealing structure caused by frequent disassembly of the shell, effectively extends the service life of the equipment, and also reduces maintenance costs and maintenance time.

[0036] The 4G module box 3's housing 31 and base plate 32 are connected by a second stud 311 and a second threaded hole 321, maintaining structural stability under complex environments such as transportation and vibration, preventing the internal 4G module from loosening or shifting. The second elastic sealing ring 313 is compressed and deformed when the housing 31 and base plate 32 are tightened, filling the gaps and achieving a waterproof and dustproof sealing effect for the module box. This effectively isolates external moisture and dust from corroding the 4G module, while also shielding internal electromagnetic signals and reducing interference to external devices. The protruding edge 322 of the base plate 32 mates with the hollow opening of the cover 2, as well as the bolts 324 and nuts. The fixed positioning ensures precise positioning of the 4G module box 3 and the housing 2, preventing lateral displacement during use and ensuring stable operation of the 4G module for accurate data communication. When components such as the information processing module generate heat, the heat is conducted through the bottom shell 1 to the heat sink 16. Since the heat sink 16 extends perpendicularly to the main surface of the bottom shell 1 and has a large surface area, it can significantly increase the contact area with the surrounding air. Under the action of natural convection or with the help of external fans and other auxiliary equipment, the air continuously exchanges heat with the surface of the heat sink 16, carrying away the heat and thus accelerating the heat conduction and convection heat dissipation efficiency.

[0037] External devices transmit data serially to carrier control circuit 42 via serial communication circuit 41. After receiving the data, carrier control circuit 42 issues a command to carrier transmission circuit 43. Carrier transmission circuit 43 loads the data onto the carrier signal according to the command. The modulated carrier signal is amplified by carrier transmission circuit 43 and then transmitted to signal coupling circuit 47. Signal coupling circuit 47 couples the signal to transmission media such as power lines to realize signal transmission and transmit it to carrier receiving circuit 45. Carrier receiving circuit 45 amplifies and preprocesses the weak signal before transmitting it to analog modulation circuit 44. Analog modulation circuit 44 demodulates the signal and restores the carrier signal to the original data. The demodulated data is transmitted to carrier control circuit 42. After processing, it is sent to external devices via serial communication circuit 41. Zero-crossing detection circuit 46 monitors the zero-crossing point of AC signal in real time, providing a synchronization reference for the transmission and reception of carrier signal. Signal transmission and reception operations are performed near the zero-crossing point of AC signal, which can reduce noise interference on transmission media such as power lines and improve the reliability and stability of communication.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A medium-voltage power line carrier communication device with master-slave interchangeability, characterized in that: The enclosure consists of a bottom shell (1) and a cover shell (2). The bottom shell (1) has a first threaded hole (11), a limiting slot (12), an information processing module mounting area (13), a limiting block (14), and a medium-voltage carrier communication module (4). The cover shell (2) has a first stud (21), a first display screen (22), and a first groove (17). The first threaded hole (11) of the bottom shell (1) is threadedly connected to the first stud (21) of the cover shell (2). The first display screen (22) of the cover shell (2) has limiting protrusions on both sides inside. The limiting protrusions of the cover shell (2) are connected to the limiting slot (12) of the bottom shell (1). The cover (2) is fitted together with a first groove (17) at the edge of the main body of the cover (2). The first elastic sealing ring (171) is embedded in the first groove (17). The fit structure of the main body of the cover (2) and the bottom shell (1) presents a semi-enclosed structure. The enclosed area is the information processing module installation area (13), and the unenclosed area is provided with a 4G module box (3). The limiting block (14) is fixedly installed on the bottom shell (1) and the limiting block (14) fits against the inner side of the cover (2). The bottom shell (1) is provided with a master-slave switching module interface, and a cover is placed on the master-slave switching module interface.

2. The medium-voltage power line carrier communication device with master-slave interchangeability according to claim 1, characterized in that: The bottom of the base shell (1) is provided with an openable maintenance door (15). The maintenance door (15) is connected to the base shell (1) by a hinge. The hinge is fixedly connected to the base shell (1), and the maintenance door (15) is hinged to the hinge.

3. The medium-voltage power line carrier communication device with master-slave interchangeability according to claim 1, characterized in that: The information processing module installation area (13) is provided with screw holes (131), and corresponding screws are provided at the screw holes (131). The information processing module is fixed to the bottom shell (1) by screws and screw holes (131).

4. A master-slave interchangeable medium-voltage power line carrier communication device according to claim 1, characterized in that: The 4G module box (3) includes a box body (31) and a base plate (32). The box body (31) includes a second stud (311) and a second groove (312). The base plate (32) is also provided with a second threaded hole (321). The second stud (311) on the box body (31) is threadedly connected to the second threaded hole (321) on the base plate (32). The second groove (312) is fitted with a second elastic sealing ring (313).

5. A master-slave interchangeable medium-voltage power line carrier communication device according to claim 4, characterized in that: The bottom of the base plate (32) of the 4G module box (3) is provided with a protruding edge (322), and a hollow opening is provided at the corresponding position of the cover (2) to allow the protruding edge (322) to be inserted therein. Mounting holes (323) are provided on both sides of the protruding edge (322), and bolts (324) are inserted into the mounting holes (323), and the other end of the bolt is provided with a nut for threaded connection.

6. A master-slave interchangeable medium-voltage power line carrier communication device according to claim 5, characterized in that: The upper surface of the box body (31) of the 4G module box (3) is provided with a second display screen (314).

7. A master-slave interchangeable medium-voltage power line carrier communication device according to claim 1, characterized in that: The bottom of the bottom shell (1) is provided with an array of heat dissipation blocks (16), the heat dissipation blocks (16) extend perpendicularly to the surface of the main body of the bottom shell (1), and the heat dissipation blocks (16) are fixedly connected to the bottom shell (1).

8. A master-slave interchangeable medium-voltage power line carrier communication device according to claim 1, characterized in that: The medium-voltage carrier communication module (4) includes a serial communication circuit (41), a carrier control circuit (42), a carrier transmission circuit (43), an analog modulation circuit (44), a carrier receiving circuit (45), and a signal coupling circuit (47). The serial communication circuit (41) and the carrier control circuit (42) are bidirectionally connected. The carrier control circuit (42) is unidirectionally connected to the carrier transmission circuit (43). The carrier transmission circuit (43) is unidirectionally connected to the signal coupling circuit (47). The signal coupling circuit (47) is unidirectionally connected to the carrier receiving circuit (45). The carrier receiving circuit (45) is unidirectionally connected to the analog modulation circuit (44). The analog modulation circuit (44) is unidirectionally connected to the carrier control circuit (42).

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