MCC cabinet intelligent power distribution cabinet

Abstract

An MCC cabinet intelligent power distribution cabinet comprises a cabinet body, the cabinet body is detachably connected with a plurality of drawer units, and each drawer unit is internally provided with an intelligent circuit breaker, a first plug connector and a second plug connector, and the first plug connector and the second plug connector are connected with the intelligent circuit breaker and used for being electrically connected with external equipment; a main controller is arranged in the intelligent circuit breaker, receives information of the voltage detector, the current transformer and the temperature sensor, is connected with a DO module and a DI module and is used for sending signals to the station control display unit to feed back current information. The intelligent power distribution cabinet is used for solving the passive problems of large control cable quantity, virtual connection, wrong connection, interference and the like of an MCC motor control power distribution cabinet and the misoperation problem of manual judgment and identification of loads, and intelligent control, power distribution, fault diagnosis and remote monitoring of the motor loads can be realized, and three-remote functions can be realized.

Description

Technical Field

[0001] This utility model relates to the field of MCC power distribution cabinets, and in particular to an intelligent MCC power distribution cabinet. Background Technology

[0002] In traditional MCC distribution cabinet systems, motor loads are mainly transmitted and controlled via dry contact methods such as machine-side control boxes. This requires a large number of control cables to be laid out and connected to equipment such as machine-side control boxes. Production operations are then operated by manually judging and identifying the equipment and load conditions.

[0003] Traditional MCC (Mechanical Control Center) distribution cabinets primarily rely on local start / stop control of motors and status displays, along with current transformers and multi-functional instruments to indicate power quality. This approach is limited in functionality and lacks intelligent management capabilities. With the development of industrial automation, motor control centers require a higher level of intelligence to achieve real-time monitoring, fault warnings, and remote control. Current technologies for MCC distribution cabinets have limited monitoring and diagnostic capabilities, failing to meet the demands of modern industry for efficient operation and maintenance and intelligent management. Utility Model Content

[0004] To address the aforementioned issues, this technical solution provides an MCC cabinet intelligent power distribution cabinet.

[0005] To achieve the above objectives, the technical solution is as follows:

[0006] An MCC cabinet intelligent power distribution cabinet includes a cabinet body, which is detachably connected to multiple drawer units. Each drawer unit is equipped with an intelligent circuit breaker and a first connector and a second connector connected to the intelligent circuit breaker for electrical connection with external devices.

[0007] The intelligent circuit breaker is equipped with a main controller, which receives information from voltage detectors, current transformers, and temperature sensors. The main controller is connected to a DO module and a DI module, which are used to send signals to the station control display unit to provide feedback on the current information.

[0008] In some embodiments, the smart circuit breaker further includes a signal processing module for receiving and processing information from the voltage detector, current transformer, and temperature sensor. The signal processing module is also connected to the main controller via an isolation device, and the main controller communicates with the main controller via a communication module.

[0009] In some embodiments, one endpoint of the DO module is connected to the L phase via a switching switch SA, and the other endpoint is connected to the N phase via the coil terminal of contactor KM and switch KH.

[0010] In some embodiments, the first and second endpoints of the DI module are connected together and connected to the L phase, and the third and fourth endpoints are connected to the N phase via indicator lights HW and HG, respectively.

[0011] In some embodiments, the intelligent circuit breaker is communicatively connected to the contactor via a DO / DI control line.

[0012] The beneficial effects of this application are:

[0013] This application addresses passive issues in MCC motor control distribution cabinets, such as large number of control cables, loose connections, incorrect connections, and interference, as well as the problem of erroneous operation due to manual judgment and identification of loads. It also enables intelligent control of motor loads, power distribution, fault diagnosis, remote monitoring, and intelligent distribution cabinets that achieve the three remote functions (remote control, remote monitoring, and remote operation). Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the drawer unit structure according to an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the block structure of the intelligent circuit breaker according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the electrical structure of the intelligent circuit breaker according to an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the principle structure of the intelligent circuit breaker according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the actual application structure of an embodiment of this utility model;

[0020] Figure 6 This is a wiring diagram based on existing technology. Detailed Implementation

[0021] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] refer to Figure 6The existing MCC intelligent power distribution cabinets use a large number of current transformers, multi-functional instruments, and cables to connect dry contacts to the machine-side control box. This results in problems such as decentralized motor operation, excessive wiring, easy misconnection or omission of contacts, susceptibility to signal transmission interference, and reliance on human intuition for identification. Consequently, the project suffers from issues such as crossed signal lines, disordered signal sources, misjudgment of load information, and human error.

[0023] Please refer to Figure 1-5 As shown, an MCC cabinet intelligent power distribution cabinet includes a cabinet body, which is detachably connected to multiple drawer units 100. Each drawer unit 100 is equipped with an intelligent circuit breaker 1 and a first plug-in 2 and a second plug-in 3 connected to the intelligent circuit breaker 1 for electrical connection with external devices.

[0024] The intelligent circuit breaker 1 is equipped with a main controller, which receives information from voltage detectors, current transformers and temperature sensors. The main controller is connected to a DO module and a DI module, which are used to send signals to the station control display unit to provide feedback on the current information.

[0025] Compared to existing technologies, this application presents an MCC intelligent power distribution cabinet that features an operating system, fewer wiring requirements, fixed transmission equipment and channels, and intelligent control, real-time monitoring, and remote management through differential signals and edge computing, thereby improving the safety and reliability of motor control systems. It is used to achieve intelligent control of motor loads, power distribution, fault diagnosis, remote monitoring, and realize the three-remote functions (remote control, remote monitoring, and remote remote control).

[0026] In this embodiment, the intelligent circuit breaker further includes a signal processing module for receiving and processing information from the voltage detector, current transformer, and temperature sensor. The signal processing module is also connected to the main controller via an isolation device, and the main controller communicates with the main controller via a communication module.

[0027] In this embodiment, one terminal of the DO module is connected to L via a switching switch SA, and the other terminal is connected to N via the coil terminal of contactor KM and switch KH.

[0028] In this embodiment, the first and second endpoints of the DI module are connected together and connected to the L phase, and the third and fourth endpoints are connected to the N phase through indicator lights HW and HG, respectively.

[0029] In this embodiment, the intelligent circuit breaker 1 is communicatively connected to the contactor via the DO / DI control line.

[0030] In the motor control method using contactors and thermal relays, this application includes the following: within the drawer unit, the intelligent circuit breaker is internally equipped with communication and communication power supply, a digital input (DI) module, an output relay (DO) module, and a controller module, and this module is made pluggable (for easy user maintenance or system upgrades).

[0031] The internal logic of the intelligent circuit breaker is as follows:

[0032] When the voltage detector detects the circuit voltage, it transmits the detected voltage source value to the signal processing module;

[0033] When the current transformer detects that current is flowing through it, it transmits the current signal to the signal processing module according to the detected current source value.

[0034] The temperature detector measures the temperature of the primary circuit inside the switch and transmits the measured temperature to the signal processing module in real time.

[0035] The signal processing module receives information transmitted from the voltage detector, current transformer, and temperature detector, and sends data to the main controller every 10 seconds through a specific isolation device.

[0036] The main controller receives external input DI status switch quantities and collects raw data such as voltage, current, temperature, power, and harmonics from the front end. It then calculates important parameters such as circuit power quality, circuit status, and local temperature rise of components required by the backend system. These parameters are sent to the station control display unit via the communication module and then transmitted to the backend system for comprehensive information collection and display on the backend screen for use in the main control room.

[0037] When the DI module of the intelligent circuit breaker in the drawer unit detects the current switch's closed, open, or tripped status, it uploads the switch quantity to the controller module. The controller module collects parameters such as voltage, current, temperature, power, and harmonics in the circuit in real time and integrates the switch status cluster. It then transmits the data to the station control display unit in the station control cabinet via differential signals through the communication unit. The station control display unit evaluates the data, classifies and integrates it according to importance and priority, and uploads the processed information to the local intelligent power distribution management platform. After confirming the information, the platform issues start or stop commands via the station control display unit to the controller module and switch quantity module in the switch. The switch's switch quantity DO module executes the platform's commands to start or stop the contactor, realizing intelligent control and monitoring of the motor in the MCC intelligent power distribution cabinet.

[0038] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. An MCC cabinet intelligent power distribution cabinet, characterized in that, Includes a cabinet, which is detachably connected to multiple drawer units (100). Each drawer unit (100) is equipped with an intelligent circuit breaker (1) and a first connector (2) and a second connector (3) connected to the intelligent circuit breaker (1) for electrical connection with external devices. The intelligent circuit breaker (1) is equipped with a main controller. The main controller receives information from the voltage detector, current transformer and temperature sensor. The main controller is connected to a DO module and a DI module, which are used to send signals to the station control display unit to provide feedback on the current information.

2. The MCC cabinet intelligent power distribution cabinet according to claim 1, characterized in that: The intelligent circuit breaker also includes a signal processing module for receiving and processing information from the voltage detector, current transformer, and temperature sensor. The signal processing module is also connected to the main controller through an isolation device, and the main controller communicates with the main controller through a communication module.

3. The MCC cabinet intelligent power distribution cabinet according to claim 2, characterized in that: One end of the DO module is connected to L via a switching switch SA, and the other end is connected to N via the coil end of contactor KM and switch KH.

4. The MCC cabinet intelligent power distribution cabinet according to claim 3, characterized in that: The first and second endpoints of the DI module are connected together and connected to the L phase, while the third and fourth endpoints are connected to the N phase via indicator lights HW and HG, respectively.

5. The MCC cabinet intelligent power distribution cabinet according to claim 1, characterized in that: The intelligent circuit breaker (1) is connected to the contactor via the DO / DI control line.

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