A kind of LCU cabinet interconnection structure

By designing the interconnection wiring structure between LCU cabinets, using a variety of electrical components and signal lines, and combining flexible limit clamps and insulation protection, the wiring and signal interference problems between LCU cabinets were solved, achieving precise control and improving working accuracy and safety.

CN224683495UActive Publication Date: 2026-08-25SOUTH TO NORTH WATER SHANDONG LINE CORP
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521602176.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-29
Publication Date
2026-08-25
Estimated Expiration
2035-07-29

AI Technical Summary

Technical Problem

Wiring interference and signal interference between LCU cabinets cause control command errors, affecting working accuracy and efficiency, and failing to meet the normal operating requirements of hydropower station units.

Method used

Design an LCU cabinet interconnection wiring structure, using electrical components such as controllers, drivers, command input devices and wireless transceivers, to achieve precise control through power signal lines, trigger signal lines, marker signal lines, command signal lines and clock signal lines, combined with flexible limit clamps and insulation protection zones to avoid wiring and signal interference.

Benefits of technology

It enables precise control of the LCU cabinet, improves working accuracy and efficiency, enhances application security, and meets the normal operating requirements of hydropower station units.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224683495U_ABST
    Figure CN224683495U_ABST
Patent Text Reader

Abstract

The application discloses an LCU inter-cabinet connection structure, which comprises a controller, wherein the controller is electrically connected with a plurality of LCU cabinets through a driver; a first connection slot is arranged between each LCU cabinet and the driver; and a power supply signal line, a trigger signal line and a mark signal line are sequentially arranged in the first connection slot; the power supply signal line is used for providing persistent power supply for the LCU cabinet; the trigger signal line is used for transmitting a relay trigger signal to each LCU cabinet in cooperation with the driver; and the mark signal line is used for transmitting a mark signal to the LCU cabinet in a working state to display the actual working state of each LCU cabinet.
Need to check novelty before this filing date? Find Prior Art

Description

Technical fields:

[0001] This utility model relates to a wiring structure for communication between LCU cabinets. Background technology:

[0002] LCU cabinets are one of the important pieces of equipment in power systems. Their main function is to protect and monitor the power system. They can be widely used in industries such as power, metallurgy, chemical, papermaking, and environmental wastewater treatment. Generally speaking, LCU cabinets can regulate and control related equipment such as hydropower stations, generating units, pumping stations, and dams. They consist of data acquisition components, information display components, and sequence adjustment components.

[0003] In practical applications, due to the large number of LCU cabinets involved, wiring interference or signal interference may occur between different LCU cabinets. This can cause errors in the control commands transmitted from the controller to the LCU cabinets, affecting the working accuracy and efficiency of the LCU cabinets and thus failing to meet the normal operating requirements of hydropower station units. Utility Model Content:

[0004] This utility model provides a wiring structure for communication between LCU cabinets. The structure is rationally designed and, based on the integrated control function of the controller, in conjunction with various types of electrical components and functional modules, uses a wiring structure that transmits relay trigger signals to adjust and control each LCU cabinet. This avoids wiring interference and signal interference between different LCU cabinets during use, and enables communication between LCU cabinets in different locations. This allows the controller to precisely control each LCU cabinet, ensuring the working accuracy and efficiency of the LCU cabinets, improving application safety, and ultimately meeting the normal operating requirements of hydropower station units. This solves the problems existing in the prior art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] An LCU cabinet interconnection wiring structure, the wiring structure comprising:

[0007] The controller is electrically connected to multiple LCU cabinets via a driver. Each LCU cabinet and the driver are provided with a first wiring slot, in which a power signal line, a trigger signal line, and a marker signal line are sequentially arranged. The power signal line is used to provide continuous power to the LCU cabinet. The trigger signal line is used to cooperate with the driver to transmit a relay trigger signal to each LCU cabinet. The marker signal line is used to transmit a marker signal to the LCU cabinet in the working state to display the actual working status of each LCU cabinet.

[0008] The controller is electrically connected to multiple LCU cabinets via a command input device. Each LCU cabinet and the command input device is provided with a second wiring slot, in which a command signal line and a clock signal line are provided. The command signal line is used to cooperate with the controller to transmit control commands to the LCU cabinets, and the clock signal line is used to cooperate with the controller to transmit clock pulse signals to the LCU cabinets to achieve real-time control and adjustment of the LCU cabinets.

[0009] Multiple wiring areas are provided at equal intervals in the first and second wiring slots. Each wiring area has three elastic limit clamps at equal intervals to securely place the signal line within the wiring area.

[0010] Each wiring zone has an insulation protection zone for the corresponding signal line.

[0011] The controller is connected to the host computer via a wireless transceiver to enable remote data transmission. The controller is an STM32F103C8T6 with 64 pins. The controller is connected to the instruction input device via pin 4, to the AD converter via pin 15, to the wireless transceiver via pins 20 and 21, and to the driver via pin 38.

[0012] The elastic limiting clamp includes a base disposed in a wiring groove, and elastic protective plates symmetrically arranged in a cross pattern on the base. The elastic protective plates are respectively connected to the inner side of the base by compression springs to form wiring holes to fix the signal line.

[0013] This utility model adopts the above-described structure, which electrically connects the controller and LCU cabinet through a driver to provide continuous power supply and relay trigger signal transmission to the LCU cabinet; it realizes real-time control and adjustment by transmitting control commands and clock pulse signals through an instruction input device; it securely sets the signal lines in the wiring area through elastic limit clamps; it realizes wireless communication between the controller and the host computer through a wireless transceiver for remote data transmission; and it provides insulation protection for each signal line through the insulation protection zone in the wiring slot, eliminating electrical interference between different types of signal lines, reducing signal transmission errors, and has the advantages of precision, practicality, safety and reliability. Attached image description:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is the actual wiring diagram of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the first wiring groove of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the second wiring groove of this utility model.

[0018] Figure 5 This is a schematic diagram of the elastic limiting clamp of this utility model.

[0019] Figure 6 This is the electrical schematic diagram of the controller of this utility model.

[0020] Figure 7 This is the electrical schematic diagram of the instruction input device of this utility model.

[0021] Figure 8 This is the electrical schematic diagram of the driver of this utility model.

[0022] Figure 9 This is the electrical schematic diagram of the wireless transceiver of this utility model.

[0023] In the diagram, 1 is the first wiring slot, 2 is the second wiring slot, 3 is the wiring area, 4 is the elastic limiting clamp, 5 is the insulation protection area, 6 is the base, and 7 is the elastic protection plate. Detailed implementation method:

[0024] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0025] like Figure 1-9 As shown, an LCU cabinet interconnection wiring structure includes:

[0026] The controller is electrically connected to multiple LCU cabinets via a driver. Each LCU cabinet and the driver are provided with a first wiring slot, in which a power signal line, a trigger signal line, and a marker signal line are sequentially arranged. The power signal line is used to provide continuous power to the LCU cabinet. The trigger signal line is used to cooperate with the driver to transmit a relay trigger signal to each LCU cabinet. The marker signal line is used to transmit a marker signal to the LCU cabinet in the working state to display the actual working status of each LCU cabinet.

[0027] The controller is electrically connected to multiple LCU cabinets via a command input device. Each LCU cabinet and the command input device is provided with a second wiring slot, in which a command signal line and a clock signal line are provided. The command signal line is used to cooperate with the controller to transmit control commands to the LCU cabinets, and the clock signal line is used to cooperate with the controller to transmit clock pulse signals to the LCU cabinets to achieve real-time control and adjustment of the LCU cabinets.

[0028] Multiple wiring areas are provided at equal intervals in the first and second wiring slots. Each wiring area has three elastic limit clamps at equal intervals to securely place the signal line within the wiring area.

[0029] Each wiring zone has an insulation protection zone for the corresponding signal line.

[0030] The controller is connected to the host computer via a wireless transceiver to enable remote data transmission. The controller is an STM32F103C8T6 with 64 pins. The controller is connected to the instruction input device via pin 4, to the AD converter via pin 15, to the wireless transceiver via pins 20 and 21, and to the driver via pin 38.

[0031] The elastic limiting clamp includes a base disposed in a wiring groove, and elastic protective plates symmetrically arranged in a cross pattern on the base. The elastic protective plates are respectively connected to the inner side of the base by compression springs to form wiring holes to fix the signal line.

[0032] The working principle of the LCU cabinet interconnection wiring structure in this embodiment of the utility model is as follows: Based on the integrated control function of the controller, and in conjunction with various types of electrical components and functional components, a wiring structure for transmitting relay trigger signals is used to adjust and control each LCU cabinet, avoiding wiring interference and signal interference between different LCU cabinets during use, realizing interconnection wiring between LCU cabinets in different locations, enabling the controller to accurately control each LCU cabinet, ensuring the working accuracy and efficiency of the LCU cabinets, improving application safety, and thus meeting the normal use requirements of hydropower station units.

[0033] In the overall solution, the controller is electrically connected to multiple LCU cabinets via a driver. Each LCU cabinet and the driver are connected to a first wiring slot, in which a power signal line, a trigger signal line, and a marker signal line are sequentially arranged. The power signal line provides continuous power to the LCU cabinet. The trigger signal line, in conjunction with the driver, transmits a relay trigger signal to each LCU cabinet. The marker signal line transmits a marker signal to the LCU cabinets in operation to indicate their actual operating status. The controller is electrically connected to the multiple LCU cabinets via a command input device. Each LCU cabinet and the command input device are connected to a second wiring slot, in which a command signal line and a clock signal line are arranged. The command signal line, in conjunction with the controller, transmits control commands to the LCU cabinets. The clock signal line, in conjunction with the controller, transmits clock pulse signals to the LCU cabinets to achieve real-time control and adjustment of the LCU cabinets.

[0034] Through the combined action of the driver and the command input device, the controller can precisely adjust and control each LCU cabinet, avoid wiring interference or signal interference, ensure that the LCU cabinet operates in place, and realize the communication wiring between LCU cabinets in different locations.

[0035] The core component is the controller, model STM32F103C8T6, which has 64 pins. The controller is connected to the instruction input device through pin 4, to the AD converter through pin 15, to the wireless transceiver through pins 20 and 21, and to the driver through pin 38. This completes the overall hardware circuit, and precise control and adjustment are achieved by relying on the above overall hardware circuit.

[0036] Regarding the electrical components involved in this application, the instruction input device is model TLP290, which has four pins. Pin 1 of the instruction input device is connected to pin 4 of the controller. A ninth resistor, a tenth resistor, and a fourth capacitor are connected in parallel between pin 1 and pin 2 of the instruction input device. A fifth capacitor and an eighth resistor are connected in parallel between pin 3 and pin 4 of the instruction input device. Pin 3 of the instruction input device is connected to the LCU cabinet so that the controller can transmit control commands to each LCU.

[0037] The driver is model ULN2003 and has 16 pins. The driver is connected to pin 38 of the controller via pin 1. A first relay is connected to pin 16 of the driver. A first resistor and a first diode are connected in parallel on the first relay. The first relay has a device interface for connecting to the LCU cabinet.

[0038] The wireless transceiver is model ESP8266 and has 8 pins. The wireless transceiver is connected to pin 21 of the controller through pin 4 and to pin 20 of the controller through pin 8, so as to establish wireless communication between the controller and the host computer for remote data transmission.

[0039] In actual use, the elastic limit clamps stably set different types of signal lines in their corresponding wiring slots and wiring areas. The controller starts and achieves precise control and adjustment through the transmission of different signal lines.

[0040] It should be noted that the elastic protection plates are connected to the inner side of the base by compression springs to form wiring holes to fix the signal lines, and the connection is stable by relying on the quality of the signal lines.

[0041] In summary, the LCU cabinet interconnection wiring structure in this embodiment of the utility model is based on the integrated control function of the controller. It utilizes various types of electrical components and functional modules, and employs a wiring structure that transmits relay trigger signals to adjust and control each LCU cabinet. This avoids wiring and signal interference between different LCU cabinets during use, enabling interconnection wiring between LCU cabinets in different locations. This allows the controller to precisely control each LCU cabinet, ensuring the working accuracy and efficiency of the LCU cabinets, improving application safety, and ultimately meeting the normal operating requirements of hydropower station units.

[0042] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0043] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A wiring structure for communication between LCU cabinets, characterized in that, The wiring structure includes: The controller is electrically connected to multiple LCU cabinets via a driver. Each LCU cabinet and the driver are provided with a first wiring slot, in which a power signal line, a trigger signal line, and a marker signal line are sequentially arranged. The power signal line is used to provide continuous power to the LCU cabinet. The trigger signal line is used to cooperate with the driver to transmit a relay trigger signal to each LCU cabinet. The marker signal line is used to transmit a marker signal to the LCU cabinet in the working state to display the actual working status of each LCU cabinet. The controller is electrically connected to multiple LCU cabinets via a command input device. Each LCU cabinet and the command input device is provided with a second wiring slot, in which a command signal line and a clock signal line are provided. The command signal line is used to cooperate with the controller to transmit control commands to the LCU cabinets, and the clock signal line is used to cooperate with the controller to transmit clock pulse signals to the LCU cabinets to achieve real-time control and adjustment of the LCU cabinets.

2. The LCU cabinet interconnection wiring structure according to claim 1, characterized in that: Multiple wiring areas are provided at equal intervals in the first and second wiring slots. Each wiring area has three elastic limit clamps at equal intervals to securely place the signal line within the wiring area.

3. The LCU cabinet interconnection wiring structure according to claim 2, characterized in that: Each wiring zone has an insulation protection zone for the corresponding signal line.

4. The LCU cabinet interconnection wiring structure according to claim 1, characterized in that: The controller is connected to the host computer via a wireless transceiver to enable remote data transmission. The controller is an STM32F103C8T6 with 64 pins. The controller is connected to the instruction input device via pin 4, to the AD converter via pin 15, to the wireless transceiver via pins 20 and 21, and to the driver via pin 38.

5. The LCU cabinet interconnection wiring structure according to claim 2, characterized in that: The elastic limiting clamp includes a base disposed in a wiring groove, and elastic protective plates symmetrically arranged in a cross pattern on the base. The elastic protective plates are respectively connected to the inner side of the base by compression springs to form wiring holes to fix the signal line.