Intelligent live display locking device for low-voltage equipment and identification method thereof

Abstract

The application relates to the technical field of low-voltage live display locking devices, and discloses an intelligent live display locking device for a low-voltage device and a recognition method thereof. The device comprises a shell, the inner wall of the shell is provided with a power protection integrated module and a locking module, the top of the shell is provided with a display module and an alarm module, one end of the shell is provided with a plurality of switches, an auxiliary wiring terminal and a state lamp, the state lamp is electrically connected with the auxiliary wiring terminal and the switch respectively, the upper surface of the shell is provided with a plurality of openings, the inside of the shell is provided with a loudspeaker, and the openings are used for heat dissipation of the power protection integrated module and sound emission of the loudspeaker. Each item in three-phase electricity corresponds to a state lamp, the state lamp corresponding to normal voltage normally flickers, 24-hour uninterrupted live state monitoring is realized, the data acquisition period is only 200 ms, three-phase live state millisecond-level dynamic refreshing of a power distribution cabinet is realized, and the effect of all-weather detection of the state of the power distribution cabinet is achieved.

Description

Technical Field

[0001] This invention relates to the field of low-voltage live display interlocking devices, specifically to an intelligent live display interlocking device and its identification method for low-voltage equipment. Background Technology

[0002] Under the national "dual carbon" strategy, a large number of distributed photovoltaic power generation systems have been built and implemented. As a key piece of equipment for the operation of photovoltaic systems, especially low-voltage grid-connected systems, the photovoltaic grid-connected cabinets have exposed busbars and a compact layout. When maintenance personnel are carrying out power outages and troubleshooting, it is difficult to intuitively judge the energized status. According to research, there is currently no experience in the application of low-voltage intelligent live display and interlocking devices in the market. Therefore, during maintenance or emergency, phase-by-phase testing can only be performed using voltage detectors or multimeters, and two people are required each time.

[0003] Existing low-voltage photovoltaic grid-connected cabinets lack dedicated intelligent live-line display equipment. Mainstream cabinets in the industry only have basic power distribution and grid connection functions, without integrating a live-line status visualization monitoring module. This leads to numerous manual intervention steps, non-standard operating procedures, and significant subjective judgment errors, easily causing problems such as missed detections, misjudgments, and misoperations. The voltage testing process is cumbersome and time-consuming, severely reducing the efficiency of operation and maintenance and emergency response. On-site voltage testing relies entirely on manual inspection and verification. This operation mode is cumbersome and time-consuming. Excessive voltage testing preparation time significantly reduces effective working time, seriously slowing down the progress of emergency response and daily maintenance efficiency.

[0004] The inventors of this application discovered in their research that the core defect of the aforementioned prior art is that the electrical testing process involves many steps, which can easily lead to problems such as missed detections, misjudgments, and misoperations. Summary of the Invention

[0005] This invention provides an intelligent live-line display interlocking device and its identification method for low-voltage equipment, which solves the problem that the voltage testing process has many steps and is prone to missed detection, misjudgment, and misoperation. It realizes visualization and logical interlocking of the live status of low-voltage phases, fundamentally reducing the risk of electric shock to personnel and improving operation and maintenance efficiency and digitalization level.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: an intelligent live display interlocking device for low-voltage equipment and its identification method, comprising a housing, wherein a power protection integrated module and an interlocking module are provided on the inner wall of the housing, and a display module and an alarm module are provided on the top of the housing; One end of the housing is provided with multiple switches, auxiliary terminals and status lights, and the status lights are electrically connected to the auxiliary terminals and switches respectively; The upper surface of the housing is provided with multiple openings, and a speaker is provided inside the housing. The openings are used to dissipate heat for the power protection integrated module and to emit sound from the speaker. The outer casing is equipped with a first mounting mechanism on both sides, which is used to mount the outer casing on the power distribution cabinet. A second mounting mechanism is installed at the bottom of the outer casing. The second mounting mechanism cooperates with the first mounting mechanism to assist in the installation of the outer casing.

[0007] The power protection integrated module draws power directly from the busbar of the distribution cabinet. The busbar voltage of the distribution cabinet is 110V to 440V. The power protection integrated module is equipped with AC resistors and capacitors to protect the power protection integrated module from overvoltage surges. At the same time, the power protection integrated module adopts an integrated packaging method to facilitate limiting the size of the appearance.

[0008] The other end of the housing is provided with multiple power terminals and redundant terminals. Near the power terminals and redundant terminals, the other end of the housing is provided with a ground terminal and multiple locking terminals. The power terminals, redundant terminals and ground terminals are electrically connected to the power protection integrated module. A protective shell is rotatably connected to the edge of the other end of the housing, and a cable port is provided on the edge of the protective shell.

[0009] By adopting the above technical solution, multiple status lights are lit when powered on. Each phase of the three-phase power supply corresponds to one status light. The status light corresponding to normal voltage flashes normally. At the same time, the voltage and current data of the three-phase power supply are displayed on the screen. Simultaneously, the energized status is monitored 24 hours a day with a data acquisition cycle of only 200ms, realizing millisecond-level dynamic refresh of the three-phase energized status of the distribution cabinet, achieving the effect of all-weather monitoring of the distribution cabinet status.

[0010] In a preferred embodiment, the interlocking module includes a leakage current lamp disposed at one end of the housing near the switch position, and multiple interlocking terminals disposed at the other end of the housing near the grounding terminal. The multiple interlocking terminals are electrically connected to the leakage current lamp, and the housing is made of UL94V zero-grade flame-retardant insulating material.

[0011] The display module includes a display screen located on the top of the housing. A safety lamp is located at one end of the housing near the leakage lamp, and the safety lamp is electrically connected to multiple power terminals and redundant terminals.

[0012] The alarm module includes a microwave sensor located on the top edge of the housing. The microwave sensor is electrically connected to the leakage current lamp. One end of the locking end is electrically connected to the outer wall of the distribution cabinet. The other end of the locking end is equipped with a normally closed relay. The leakage current lamp, microwave sensor and power protection integrated module are equipped with normally open relays.

[0013] The normally closed relay is electrically connected to the normally open relay. When the normally closed relay is energized, it forms a high potential, and when the normally open relay is closed, the leakage lamp and the microwave sensor are energized.

[0014] The first mounting mechanism includes a fixing plate and two slots fixedly connected to both sides of the outer shell. One end of the fixing plate is rotatably connected to a screw, and one end of the screw is threadedly connected to a connecting block.

[0015] The second mounting mechanism includes a mounting bracket fixedly connected to the bottom of the housing. One end of the mounting bracket is rotatably connected to a fixed bracket. The upper surface of the fixed bracket is provided with a protective plate and bolts, and one end of the fixed bracket is provided with a buckle.

[0016] A smart live-line display interlocking device for low-voltage equipment and its identification method, comprising the following steps: S1. Wiring: Connect multiple power terminals to the busbar in the distribution cabinet using cables. Connect the three power terminals to the three-phase power on the busbar respectively. By turning on multiple switches, multiple status lights are powered on and lit. The status light corresponding to normal voltage flashes normally, and the safety light stays on, indicating that the power status in the distribution cabinet is normal. At the same time, the voltage and current data of the three-phase power are displayed on the screen. S2. Installation: The first method involves rotating the screw to press the fixing plate against the outer wall of the distribution cabinet, and fixing the outer shell to the outer wall of the distribution cabinet by the screw and connecting block. The second method involves snapping one end of the fixing bracket onto the edge of the outer wall of the distribution cabinet, and fixing the fixing bracket to the edge of the outer wall of the distribution cabinet by rotating the bolt. S3, Alarm: When the corresponding three-phase voltage is abnormal, the corresponding status light goes out and the safety light goes out, which serves to indicate that the power supply of the distribution cabinet needs to be inspected. If the power supply of the distribution cabinet leaks and causes the outer wall of the distribution cabinet to become live, the normally closed relay will be energized, which will energize the leakage light and microwave sensor. The safety light will go out and the leakage light will light up. At the same time, the microwave sensor will start to detect people around the distribution cabinet and issue an alarm sound through the speaker. S4. Detection: Connect to an external remote monitoring terminal device through the redundant terminal, and use the network to detect the signal on the redundant terminal remotely. Monitor the voltage and current data of the power distribution cabinet in real time through the redundant terminal.

[0017] This invention provides an intelligent live-line display interlocking device and its identification method for low-voltage equipment. It has the following beneficial effects: 1. This invention connects three power terminals to the three-phase power supply on the busbar. By turning on multiple switches, multiple status lights are powered on and illuminated. Each phase of the three-phase power supply corresponds to a status light. When the voltage is normal, the corresponding status light flashes normally. At the same time, the voltage and current data of the three-phase power supply are displayed on the screen. Simultaneously, the energized status is monitored 24 hours a day. The data acquisition cycle is only 200ms, which realizes millisecond-level dynamic refresh of the three-phase energized status of the distribution cabinet, achieving the effect of all-weather monitoring of the distribution cabinet status.

[0018] 2. When the power supply to the distribution cabinet leaks current, this invention energizes the locking terminal, which in turn energizes the normally closed relay, thereby closing the normally open relay. This energizes the leakage lamp and microwave sensor, turning off the safety light and illuminating the leakage lamp. Simultaneously, the microwave sensor activates to detect personnel around the distribution cabinet. If personnel are detected approaching the distribution cabinet, an alarm sound is emitted through a speaker, warning personnel not to approach or touch the distribution cabinet, indicating that the distribution cabinet is in a leakage state. This effectively protects the safety of maintenance personnel.

[0019] 3. This invention improves the intelligence of the device by using multiple redundant terminals to connect to external remote monitoring terminal equipment.

[0020] 4. In this invention, the outer casing is fixed to the outer wall of the distribution cabinet by rotating the screw and the fixing plate. The screw and the connecting block fix the outer casing to the outer wall of the distribution cabinet. By rotating the fixing frame, a rotation damping is provided between the fixing frame and the mounting frame, so that the fixing frame abuts against the outer wall of the distribution cabinet. In the second method, one end of the fixing frame is snapped into the edge of the outer wall of the distribution cabinet, and the fixing frame is stably fixed to the edge of the outer wall of the distribution cabinet by rotating the bolt. This achieves the effect of fixing the outer casing in multiple ways. Attached Figure Description

[0021] Figure 1 This is an overall perspective view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a side view schematic diagram of the present invention; Figure 4 This is a schematic diagram of the rotating fixed frame of the present invention; Figure 5 This is a bottom view diagram of the present invention; Figure 6 This is a schematic diagram of the cable port of the present invention; Figure 7 This is a schematic diagram of the control flow of the present invention.

[0022] The components are as follows: 1. Outer shell; 2. Leakage lamp; 3. Switch; 4. Safety lamp; 5. Auxiliary wiring terminal; 6. Status lamp; 7. Microwave sensor; 8. Opening; 9. Display screen; 10. Protective shell; 11. Fixing plate; 12. Screw; 13. Slot; 14. Connecting block; 15. Cable port; 16. Power supply terminal; 17. Redundancy terminal; 18. Grounding terminal; 19. Fixing bracket; 20. Locking terminal; 21. Mounting bracket; 22. Protective plate; 23. Buckle; 24. Bolt. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Reference Figures 1-7 This invention provides an intelligent live display interlocking device and its identification method for low-voltage equipment, including a housing 1, with a power protection integrated module and an interlocking module disposed on the inner wall of the housing 1, and a display module and an alarm module disposed on the top of the housing 1; One end of the housing 1 is provided with multiple switches 3, auxiliary terminals 5 and status lights 6, and the status lights 6 are electrically connected to the auxiliary terminals 5 and switches 3 respectively; The upper surface of the housing 1 is provided with multiple openings 8, and a speaker is provided inside the housing 1. The openings 8 are used to dissipate heat for the power protection integrated module and also for the speaker to emit sound. The outer casing 1 is equipped with a first mounting mechanism on both sides, which is used to mount the outer casing 1 on the power distribution cabinet; A second mounting mechanism is installed at the bottom of the outer casing 1. The second mounting mechanism cooperates with the first mounting mechanism to assist in the installation of the outer casing 1.

[0025] The power protection integrated module draws power directly from the busbar of the distribution cabinet, which has a voltage range of 110V to 440V. The power protection integrated module is equipped with AC resistors and capacitors to protect it from overvoltage surges. The entire power protection integrated module is also packaged in an integrated manner to minimize its size.

[0026] The other end of the housing 1 is provided with multiple power terminals 16 and redundant terminals 17. The other end of the housing 1 is provided with a ground terminal 18 and multiple locking terminals 20 near the power terminals 16 and redundant terminals 17. The power terminals 16, redundant terminals 17 and ground terminals 18 are electrically connected to the power protection integrated module. The edge of the other end of the housing 1 is rotatably connected to a protective shell 10. The edge of the protective shell 10 is provided with a cable port 15.

[0027] In this embodiment, multiple power supply terminals 16 are connected to the busbar in the distribution cabinet using cables. The three power supply terminals 16 are respectively connected to the three-phase power on the busbar. By turning on multiple switches 3, multiple status lights 6 are powered on and lit. Each phase of the three-phase power corresponds to one status light 6. The status light 6 corresponding to normal voltage flashes normally. At the same time, the voltage and current data of the three-phase power are displayed on the display screen 9. Simultaneously, the energized status is monitored 24 hours a day. The data acquisition cycle is only 200ms, realizing millisecond-level dynamic refresh of the three-phase energized status of the distribution cabinet, achieving the effect of all-weather detection of the status of the distribution cabinet.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 7 In a preferred embodiment, the locking module includes a leakage lamp 2 disposed at one end of the housing 1 near the switch 3, and a plurality of locking terminals 20 disposed at the other end of the housing 1 near the grounding terminal 18. The plurality of locking terminals 20 are electrically connected to the leakage lamp 2. The housing 1 is made of UL94V zero-level flame retardant insulation material.

[0029] The display module includes a display screen 9 located on the top of the housing 1. A safety lamp 4 is located at one end of the housing 1 near the leakage lamp 2. The safety lamp 4 is electrically connected to multiple power terminals 16 and redundant terminals 17.

[0030] In this embodiment, when the corresponding three-phase voltage is abnormal, the corresponding status light 6 goes out and the safety light 4 goes out, which serves to indicate that the power supply of the distribution cabinet needs maintenance.

[0031] Reference Figure 1 , Figure 3 , Figure 4 and Figure 7 In a preferred embodiment, the alarm module includes a microwave sensor 7 disposed on the top edge of the housing 1, the microwave sensor 7 being electrically connected to the leakage lamp 2, one end of the locking end 20 being electrically connected to the outer wall of the distribution cabinet, and the other end of the locking end 20 being provided with a normally closed relay, and the leakage lamp 2 and the microwave sensor 7 being provided with a normally open relay in the power protection integrated module.

[0032] The normally closed relay and the normally open relay are electrically connected. When the normally closed relay is energized, a high potential is formed. When the normally open relay is closed, the leakage lamp 2 and the microwave sensor 7 are energized.

[0033] In this embodiment, a power leakage in the distribution cabinet causes the outer wall of the distribution cabinet to become energized, thereby energizing the locking terminal 20, which in turn energizes the normally closed relay, causing the normally open relay to close. This energizes the leakage lamp 2 and the microwave sensor 7, turning off the safety lamp 4 and illuminating the leakage lamp 2. Simultaneously, the microwave sensor 7 starts detecting personnel around the distribution cabinet. If personnel are detected approaching the distribution cabinet, an alarm sound is emitted through the speaker, warning personnel not to approach or touch the distribution cabinet, indicating that the distribution cabinet is in a leakage state, thus protecting the safety of maintenance personnel.

[0034] Furthermore, the device is designed with multiple redundant terminals 17 to connect to external remote monitoring terminal devices, thereby enhancing its intelligence.

[0035] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4In a preferred embodiment, the first mounting mechanism includes a fixing plate 11 and two slots 13 fixedly connected to both sides of the housing 1. One end of the fixing plate 11 is rotatably connected to a screw 12, and one end of the screw 12 is threadedly connected to a connecting block 14.

[0036] The second mounting mechanism includes a mounting bracket 21 fixedly connected to the bottom of the housing 1. One end of the mounting bracket 21 is rotatably connected to a fixing bracket 19. The upper surface of the fixing bracket 19 is provided with a protective plate 22 and bolts 24. One end of the fixing bracket 19 is provided with a buckle 23.

[0037] In this embodiment, the first method involves setting an opening on the outer wall of the distribution cabinet for fixing the outer casing 1 and connecting cables. A screw 12 is inserted into the opening, and a connecting block 14 is secured in the slot 13. The screw 12 is rotated and pressed against the outer wall of the distribution cabinet by the fixing plate 11. The outer casing 1 is fixed to the outer wall of the distribution cabinet by the screw 12 and the connecting block 14. By rotating the fixing frame 19, which has rotational damping between the fixing frame 19 and the mounting frame 21, the fixing frame 19 is pressed against the outer wall of the distribution cabinet, stabilizing the position of the outer casing 1 and effectively fixing the outer casing 1 to the outside of the distribution cabinet.

[0038] Furthermore, the cable extends into the distribution cabinet through the cable port 15, and the protective shell 10 protects the cable as well as the power supply end 16 and the redundant end 17.

[0039] In this embodiment, the second method involves fastening one end of the fixing bracket 19 with the buckle 23 to the edge of the outer wall of the distribution cabinet. Since the thickness of the fixing bracket 19 is 1mm, it does not affect the closing of the distribution cabinet door. By rotating the bolt 24, the fixing bracket 19 is stably fixed to the edge of the outer wall of the distribution cabinet, achieving the effect of fixing the outer shell 1 in multiple ways.

[0040] Furthermore, by providing rotational damping between the fixed frame 19 and the mounting frame 21, the rotation angle between the fixed frame 19 and the mounting frame 21 can be adjusted arbitrarily.

[0041] A smart live-line display interlocking device for low-voltage equipment and its identification method, comprising the following steps: S1. Wiring: Connect multiple power terminals 16 to the busbar in the distribution cabinet using cables. Connect the three power terminals 16 to the three-phase power on the busbar respectively. By turning on multiple switches 3, multiple status lights 6 are powered on and lit. The status light 6 corresponding to normal voltage flashes normally. The safety light 4 is always on, indicating that the power status in the distribution cabinet is normal. At the same time, the voltage and current data of the three-phase power are displayed on the display screen 9. S2. Installation: In the first method, the screw 12 is rotated to abut against the outer wall of the distribution cabinet through the fixing plate 11, and the outer shell 1 is fixed to the outer wall of the distribution cabinet through the screw 12 and the connecting block 14. In the second method, the fixing bracket 19 is clipped to the edge of the outer wall of the distribution cabinet by one end of the buckle 23, and the fixing bracket 19 is stably fixed to the edge of the outer wall of the distribution cabinet by rotating the bolt 24. S3, Alarm: When the corresponding three-phase voltage is abnormal, the corresponding status light 6 goes out and the safety light 4 goes out, which serves to indicate that the power supply of the distribution cabinet needs to be inspected. If the power supply of the distribution cabinet leaks and causes the outer wall of the distribution cabinet to become live, the normally closed relay will be energized, which will energize the leakage light 2 and the microwave sensor 7. The safety light 4 will go out and the leakage light 2 will light up. At the same time, the microwave sensor 7 will start to detect the personnel around the distribution cabinet and issue an alarm sound through the speaker. S4. Detection: Connect to an external remote monitoring terminal device through redundant terminal 17, and use the network to detect the signal on redundant terminal 17 remotely. Monitor the voltage and current data of the power distribution cabinet in real time through redundant terminal 17.

[0042] Workflow: Connect multiple power terminals 16 to the busbar in the distribution cabinet using cables. Three power terminals 16 are connected to the three-phase power on the busbar. By turning on multiple switches 3, multiple status lights 6 are powered on and illuminated. Each phase of the three-phase power corresponds to one status light 6. A status light 6 corresponding to a normal voltage flashes normally, while a safety light 4 remains constantly lit, indicating a normal power status in the distribution cabinet. Simultaneously, the voltage and current data of the three-phase power are displayed on the screen 9. This provides 24-hour uninterrupted monitoring of the energized status, with a data acquisition cycle of only 200ms, achieving millisecond-level dynamic updates of the three-phase energized status of the distribution cabinet. This provides all-weather monitoring of the distribution cabinet status and the corresponding three-phase voltage. If an abnormality occurs, the corresponding status light 6 will turn off, and the safety light 4 will also turn off, indicating that the power distribution cabinet needs maintenance. If a power leakage causes the outer wall of the distribution cabinet to become energized, the interlock terminal 20 will be energized, energizing the normally closed relay. This energizes the normally open relay, energizing the leakage current lamp 2 and the microwave sensor 7. Safety light 4 will turn off, and leakage current lamp 2 will illuminate. Simultaneously, microwave sensor 7 will activate to detect personnel near the distribution cabinet. If personnel are detected approaching the distribution cabinet, an alarm will sound through the speaker, warning personnel not to approach or touch the distribution cabinet, indicating it is in a leakage current state. This effectively protects the safety of maintenance personnel. Through the redundancy design of multiple redundant terminals 17, [the system]... Multiple redundant terminals 17 are used to connect to external remote monitoring terminal equipment to improve the intelligence of the device. When the power distribution cabinet is in normal condition, the outer shell 1 needs to be installed on the power distribution cabinet. The first method is to set an opening in the outer wall of the power distribution cabinet to fix the outer shell 1 and the connecting cable. The screw 12 is inserted into the opening, and the connecting block 14 is locked in the slot 13. The screw 12 is rotated and pressed against the outer wall of the power distribution cabinet by the fixing plate 11. The outer shell 1 is fixed to the outer wall of the power distribution cabinet by the screw 12 and the connecting block 14. By rotating the fixing frame 19, which is provided with rotation damping between the fixing frame 19 and the mounting frame 21, the fixing frame 19 is pressed against the outer wall of the power distribution cabinet for stable support. The position of the outer casing 1 serves to stably fix the outer casing 1 to the outside of the distribution cabinet. The cable extends into the distribution cabinet through the cable port 15. The protective casing 10 protects the cable, as well as the power supply end 16 and the redundant end 17. The second method is to clip one end of the fixing bracket 19 to the edge of the outer wall of the distribution cabinet with the buckle 23. Since the thickness of the fixing bracket 19 is 1mm, it does not affect the closing of the distribution cabinet door. The fixing bracket 19 is stably fixed to the edge of the outer wall of the distribution cabinet by rotating the bolt 24. The rotation damping is provided between the fixing bracket 19 and the mounting bracket 21, and the rotation angle between the fixing bracket 19 and the mounting bracket 21 can be adjusted arbitrarily, which achieves the effect of fixing the outer casing 1 in multiple ways.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent live-line display interlocking device for low-voltage equipment, comprising a housing (1), characterized in that, The inner wall of the outer casing (1) is provided with a power protection integrated module and a locking module, and the top of the outer casing (1) is provided with a display module and an alarm module. One end of the housing (1) is provided with multiple switches (3), auxiliary terminals (5) and status lights (6), and the status lights (6) are electrically connected to the auxiliary terminals (5) and switches (3) respectively; The upper surface of the housing (1) is provided with multiple openings (8), and a speaker is provided inside the housing (1). The openings (8) are used to dissipate heat for the power protection integrated module and to emit sound from the speaker. The outer casing (1) is equipped with a first mounting mechanism on both sides, which is used to mount the outer casing (1) on the power distribution cabinet; A second mounting mechanism is installed at the bottom of the outer shell (1). The second mounting mechanism cooperates with the first mounting mechanism to assist in the installation of the outer shell (1).

2. The intelligent live-line display interlocking device for low-voltage equipment according to claim 1, characterized in that, The power protection integrated module draws power directly from the busbar of the distribution cabinet. The busbar voltage of the distribution cabinet is 110V to 440V. The power protection integrated module is equipped with AC resistors and capacitors to protect the power protection integrated module from overvoltage surges. At the same time, the power protection integrated module adopts an integrated packaging method to facilitate limiting the size of the appearance.

3. The intelligent live-line display interlocking device for low-voltage equipment according to claim 2, characterized in that, The other end of the outer casing (1) is provided with multiple power terminals (16) and redundant terminals (17). The other end of the outer casing (1) is provided with a ground terminal (18) and multiple locking terminals (20) near the power terminals (16) and redundant terminals (17). The power terminals (16), redundant terminals (17) and ground terminals (18) are electrically connected to the power protection integrated module respectively. The other edge of the outer casing (1) is rotatably connected to a protective shell (10). The edge of the protective shell (10) is provided with a cable port (15).

4. The intelligent live-line display interlocking device for low-voltage equipment according to claim 3, characterized in that, The locking module includes a leakage lamp (2) located at one end of the housing (1) near the switch (3), and multiple locking terminals (20) located at the other end of the housing (1) near the ground terminal (18). The multiple locking terminals (20) are electrically connected to the leakage lamp (2). The housing (1) is made of UL94V zero-level flame-retardant insulation material.

5. The intelligent live-line display interlocking device for low-voltage equipment according to claim 4, characterized in that, The display module includes a display screen (9) disposed on the top of the housing (1), and a safety lamp (4) is disposed at one end of the housing (1) near the leakage lamp (2). The safety lamp (4) is electrically connected to multiple power supply terminals (16) and redundant terminals (17).

6. The intelligent live-line display interlocking device for low-voltage equipment according to claim 1, characterized in that, The alarm module includes a microwave sensor (7) located on the top edge of the housing (1). The microwave sensor (7) is electrically connected to the leakage lamp (2). One end of the locking end (20) is electrically connected to the outer wall of the distribution cabinet. The other end of the locking end (20) is equipped with a normally closed relay. The leakage lamp (2) and the microwave sensor (7) are equipped with normally open relays in the power protection integrated module.

7. The intelligent live-line display interlocking device for low-voltage equipment according to claim 6, characterized in that, The normally closed relay is electrically connected to the normally open relay. When the normally closed relay is energized, it forms a high potential. When the normally open relay is closed, the leakage lamp (2) and the microwave sensor (7) are energized.

8. The intelligent live-line display interlocking device for low-voltage equipment according to claim 1, characterized in that, The first installation mechanism includes a fixing plate (11) fixedly connected to both sides of the outer shell (1) and two slots (13). One end of the fixing plate (11) is rotatably connected to a screw (12), and one end of the screw (12) is threadedly connected to a connecting block (14).

9. The intelligent live-line display interlocking device for low-voltage equipment according to claim 1, characterized in that, The second mounting mechanism includes a mounting bracket (21) fixedly connected to the bottom of the housing (1). One end of the mounting bracket (21) is rotatably connected to a fixing bracket (19). The upper surface of the fixing bracket (19) is provided with a protective plate (22) and bolts (24). One end of the fixing bracket (19) is provided with a buckle (23).

10. A method for intelligent live-line display interlocking identification of low-voltage equipment, used in the intelligent live-line display interlocking device for low-voltage equipment as described in any one of claims 1-9, characterized in that, The method includes the following steps: S1. Wiring: Connect multiple power terminals (16) to the busbar in the distribution cabinet using cables. Connect the three power terminals (16) to the three-phase power on the busbar respectively. By turning on multiple switches (3), multiple status lights (6) are powered on and lit. The status light (6) corresponding to normal voltage flashes normally, and the safety light (4) stays on, indicating that the power status in the distribution cabinet is normal. At the same time, the voltage and current data of the three-phase power are displayed on the display screen (9). S2, Installation: The first method is to rotate the screw (12) and press it against the outer wall of the distribution cabinet through the fixing plate (11), and fix the outer shell (1) to the outer wall of the distribution cabinet through the screw (12) and the connecting block (14). The second method is to use the buckle (23) of one end of the fixing bracket (19) to the edge of the outer wall of the distribution cabinet, and fix the fixing bracket (19) to the edge of the outer wall of the distribution cabinet by rotating the bolt (24). S3, Alarm: When the corresponding three-phase voltage is abnormal, the corresponding status light (6) goes out and the safety light (4) goes out, which serves as a reminder that the power supply of the distribution cabinet needs to be inspected. When the power supply of the distribution cabinet leaks and the outer wall of the distribution cabinet becomes live, the normally closed relay is energized, which energizes the leakage light (2) and the microwave sensor (7). The safety light (4) goes out and the leakage light (2) lights up. At the same time, the microwave sensor (7) starts to detect the personnel around the distribution cabinet and emits an alarm sound through the speaker. S4. Detection: Connect to an external remote monitoring terminal device through the redundant terminal (17), use the network to detect the signal on the redundant terminal (17) remotely, and monitor the voltage and current data of the power distribution cabinet in real time through the redundant terminal (17).

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