Overhaul power-on prevention intelligent control terminal

Abstract

The utility model discloses an anti-electrification intelligent control terminal for maintenance, which relates to the technical field of distribution boxes and comprises a plurality of distribution box main bodies and a control terminal. A screen display PLC controller, a wired control plug, a voltage transmitter, a circuit breaker, a closing relay, an opening relay and a blocking relay are installed in the distribution box main body. According to the power-on prevention intelligent control terminal for maintenance, when a 24V maintenance command of a background is received through the relays, the closing relay, the opening relay and the blocking relay form a closing loop, an opening loop and a blocking state, and a maintenance indication is displayed on a screen on the front side of the distribution box main body, so that the safety is higher when the distribution box is maintained; and meanwhile, when the maintenance state command is received, the power supply of the closing loop is disconnected to form locking, so that illegal operation during maintenance of the distribution box is avoided, and the safety is higher.

Description

Technical Field

[0001] This utility model relates to the field of distribution box technology, specifically to an intelligent control terminal for maintenance and power-off prevention. Background Technology

[0002] Electrical distribution box maintenance involves troubleshooting. Common faults include power outages, blown fuses, and overloads. Troubleshooting requires specialized testing instruments such as electricity meters, ammeters, and voltmeters to accurately determine the cause of the fault. Alternatively, the distribution box may need to be cleaned and inspected to remove dust and debris. Simultaneously, check for loose fasteners, secure wiring, and stable and reliable electrical connections.

[0003] When a distribution box is under maintenance, a maintenance sign is usually hung on the front of the box to indicate that it is under maintenance. However, hanging maintenance signs is not very safe, as there is a risk that the signs may fall off, or workers may operate the distribution box in violation of regulations, posing a significant safety hazard. Therefore, this application proposes an intelligent control terminal for maintenance and anti-energization to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides an intelligent control terminal for maintenance and power-off prevention, which solves the technical problems mentioned in the background.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a maintenance and anti-power-off intelligent control terminal, comprising multiple distribution box bodies and a control terminal. The multiple distribution box bodies are installed in a distribution cabinet. Each distribution box body is equipped with a display PLC controller, a wired control plug, a voltage transmitter, a circuit breaker, a closing relay, an opening relay, and a locking relay. The control terminal is communicatively connected to the display PLC controller via the wired control plug. The display PLC controller is connected to the closing relay, the opening relay, and the locking relay respectively. The closing relay, the opening relay, and the locking relay are respectively connected to the circuit breaker to control the closing circuit, the opening circuit, and the locking of the circuit breaker. One end of the voltage transmitter is connected to the output end of the distribution box body, and the other end is connected to the display PLC controller to display the detected output voltage through the display PLC controller.

[0008] Preferably, when the relay receives a 24V closing command from the backend, the circuit breaker will connect to form a closing circuit.

[0009] Preferably, when the trip relay receives a 24V trip command from the backend, the circuit breaker will disconnect to form a trip circuit.

[0010] Preferably, when the locking relay receives a 24V maintenance status command from the background, the power supply to the circuit breaker's closing circuit will be disconnected to form a lockout.

[0011] Preferably, when the closing circuit of the locking relay forms a locked state, it will display a "Maintenance" instruction and an "Electronic Tag, Do Not Close" instruction on the PLC controller.

[0012] Preferably, when the closing circuit of the locking relay forms a locked state, the manual switch on the front side of the distribution box is in an invalid state.

[0013] Preferably, the main body of the distribution box can also be wirelessly connected via an RS485 communication channel to remotely command and control the closing relay, opening relay, and locking relay to form a closing circuit, an opening circuit, and a locking circuit.

[0014] Preferably, after the voltage transmitter collects the output voltage of the main body of the distribution box, it converts it into a 0-10V signal that can be received by the screen display PLC controller and displays the output voltage on the screen display PLC controller on the front side of the main body of the distribution box or on the background.

[0015] Preferably, the model of the display PLC controller is APD-X-1000.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this utility model are as follows:

[0018] This type of intelligent control terminal for maintenance and power-off prevention, when receiving a 24V maintenance command from the backend via a relay, enables the closing relay, opening relay, and interlocking relay to form a closing circuit, an opening circuit, and an interlocking state. It also displays a "Maintenance" indicator on the screen on the front side of the distribution box, making the maintenance of the distribution box safer. At the same time, when receiving a maintenance status command, the power supply to the closing circuit will be disconnected to form an interlock, thereby preventing unauthorized operations during the maintenance of the distribution box and further enhancing safety. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the distribution box of this utility model.

[0021] In the diagram: 1. Main body of the distribution box; 2. Distribution cabinet; 3. Display PLC controller; 4. Wired control plug; 5. Voltage transmitter; 6. Circuit breaker; 7. Closing relay; 8. Opening relay; 9. Lockout relay; 10. Control terminal. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-2 As shown, this utility model provides a technical solution: a maintenance and anti-power-off intelligent control terminal, including multiple distribution box bodies 1 and a control terminal 10. The multiple distribution box bodies 1 are installed inside a distribution cabinet 2. Each distribution box body 1 contains a display PLC controller 3, a wired control plug 4, a voltage transmitter 5, a circuit breaker 6, a closing relay 7, a opening relay 8, and a locking relay 9. The control terminal 10 is communicatively connected to the display PLC controller 3 via the wired control plug 4. The display PLC controller 3 is model APD-X-1000. The display PLC controller 3 is connected to the closing relay 7, the opening relay 8, and the locking relay 9 respectively. The closing relay 7, the opening relay 8, and the locking relay... Relays 9 are connected to circuit breaker 6 respectively and are used to control the closing circuit, opening circuit and interlocking of circuit breaker 6. When relay 7 receives the 24V closing command from the background, circuit breaker 6 will close to form a closing circuit. When the opening relay 8 receives the 24V opening command from the background, circuit breaker 6 will open to form an opening circuit. When the interlocking relay 9 receives the 24V maintenance status command from the background, the power supply to the closing circuit of circuit breaker 6 will be disconnected to form an interlocking. When the closing circuit of interlocking relay 9 forms an interlocking state, it will display the "Maintenance" indication and the "Electronic Tag, Do Not Close" indication on the PLC controller 3. When the closing circuit of interlocking relay 9 forms an interlocking state, the manual switch on the front side of the main body 1 of the distribution box is in an invalid state.

[0024] The main body of the distribution box 1 can also be wirelessly connected via an RS485 communication channel to remotely command and control the closing relay 7, opening relay 8 and locking relay 9 to form a closing circuit, an opening circuit and a locking circuit;

[0025] After the voltage transmitter 5 collects the output voltage of the main body 1 of the distribution box, it will convert it into a 0-10V signal that can be received by the screen display PLC controller 3 and display the output voltage on the screen display PLC controller 3 on the front side of the main body 1 of the distribution box or on the back end.

[0026] The operation steps of this utility model are as follows:

[0027] After the voltage transmitter 5 collects the output voltage of the main body 1 of the distribution box, it will convert it into a 0-10V signal that can be received by the screen display PLC controller 3. The output voltage is displayed on the screen display PLC controller 3 on the front side of the main body 1 of the distribution box or on the background, for viewing and indication during testing. It is connected to the control terminal (10) through the wired control plug 4 for wired command reception. It can also be wirelessly connected through one RS485 communication channel to remotely command and control the closing relay 7, the opening relay 8 and the locking relay 9 to form a closing circuit, an opening circuit and a locking circuit. When the closing relay 7 receives the 24V closing command from the background, the circuit breaker 6 When the circuit breaker 6 disconnects to form a closing circuit, the circuit breaker relay 8 will receive a 24V opening command from the backend to form a closing circuit. When the circuit breaker relay 9 receives a 24V maintenance status command from the backend, the power supply to the closing circuit of the circuit breaker 6 will be disconnected to form a lockout, meaning that the main body of the distribution box 1 cannot be operated. The manual switch on the front side of the main body of the distribution box 1 will be in an invalid state. When the closing circuit of the circuit breaker 6 forms a lockout state, an electronic tag indicating "Maintenance" and an electronic tag indicating "Electronic Tag, Do Not Close" will be displayed on the screen on the front side of the main body of the distribution box 1 to indicate that the main body of the distribution box 1 is in a maintenance state.

[0028] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A maintenance and anti-power-on intelligent control terminal, characterized in that: The system includes multiple distribution box bodies (1) and a control terminal (10). The multiple distribution box bodies (1) are installed inside a distribution cabinet (2). Each distribution box body (1) contains a display PLC controller (3), a wired control plug (4), a voltage transmitter (5), a circuit breaker (6), a closing relay (7), a opening relay (8), and a locking relay (9). The control terminal (10) is connected to the display PLC controller (3) via the wired control plug (4). The voltage transmitter (5) is connected to the closing relay (7), opening relay (8), and locking relay (9) respectively. The closing relay (7), opening relay (8), and locking relay (9) are connected to the circuit breaker (6) respectively to control the closing circuit, opening circuit, and locking of the circuit breaker (6). One end of the voltage transmitter (5) is connected to the output end of the main body (1) of the distribution box, and the other end is connected to the screen display PLC controller (3) to display the detected output voltage through the screen display PLC controller (3).

2. The intelligent control terminal for maintenance and power-off prevention according to claim 1, characterized in that: When the relay (7) receives the 24V closing command from the background, the circuit breaker (6) will be connected to form a closing circuit.

3. The intelligent control terminal for maintenance and power-off prevention according to claim 1, characterized in that: When the trip relay (8) receives the 24V trip command from the background, the circuit breaker (6) will disconnect to form a trip circuit.

4. The intelligent control terminal for maintenance and power-off prevention according to claim 1, characterized in that: When the locking relay (9) receives the 24V maintenance status command from the background, the power supply to the closing circuit of the circuit breaker (6) will be disconnected to form a lockout.

5. The intelligent control terminal for maintenance and power-off prevention according to claim 4, characterized in that: When the closing circuit of the locking relay (9) forms a locked state, it will display a "Maintenance" instruction and an "Electronic Tag, Prohibit Closing" instruction on the PLC controller (3).

6. The intelligent control terminal for maintenance and power-off prevention according to claim 4, characterized in that: When the closing circuit of the locking relay (9) forms a locked state, the manual switch on the front side of the main body (1) of the distribution box is in an invalid state.

7. The intelligent control terminal for maintenance and power-off prevention according to claim 1, characterized in that: The main body (1) of the distribution box can also be wirelessly connected via an RS485 communication channel to remotely command and control the closing relay (7), opening relay (8) and locking relay (9) to form a closing circuit, an opening circuit and a locking circuit.

8. The intelligent control terminal for maintenance and power-off prevention according to claim 1, characterized in that: After the voltage transmitter (5) collects the output voltage of the main body (1) of the distribution box, it will convert it into a 0-10V signal that can be received by the screen display PLC controller (3) and display the output voltage on the screen display PLC controller (3) on the front side of the main body (1) or on the background.

9. The intelligent control terminal for maintenance and power-off prevention according to claim 1, characterized in that: The model of the display PLC controller (3) is APD-X-1000.

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