Comprehensive intelligent control system of PLC cabinet
By installing components such as phase sequence protectors and power filters inside the PLC cabinet and using the Ethernet protocol for device communication, the problem of low intelligence level of the PLC cabinet is solved, and comprehensive control and equipment stability protection are achieved.
Patent Information
- Application Number
- CN202520042927.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing PLC cabinets cannot perform comprehensive control and have a low level of intelligence.
Design an integrated intelligent control system for a PLC cabinet. The system uses Ethernet protocol for device communication, achieves data interaction through a switch, and incorporates components such as phase sequence protectors, power filters, DC power modules, isolators, diodes, and solid-state relays within the PLC cabinet for integrated control and protection.
It enables integrated control of the PLC cabinet, improves the intelligence level of the equipment, protects the equipment from electromagnetic interference, ensures power quality and control circuit stability, and improves the reliability and safety of the equipment.
Smart Images
Figure CN223912067U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to PLC cabinet technical field, concretely is a kind of comprehensive intelligent control system of PLC cabinet. BACKGROUND
[0002] PLC cabinet is the electrical cabinet that can realize motor, switch control, but the existing PLC cabinet still has shortcomings, specifically: the existing PLC cannot comprehensively control equipment, and the intelligent degree is lower.
[0003] Therefore, a kind of comprehensive intelligent control system of PLC cabinet is needed to solve the problems raised in the above background technique. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of comprehensive intelligent control system of PLC cabinet to solve the problems raised in the above background technique.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A kind of comprehensive intelligent control system of PLC cabinet, including PLC cabinet body, the inside of the PLC cabinet body is provided with control mechanism, the top of the PLC cabinet body is installed with switcher;
[0007] The control mechanism includes phase sequence protector fixedly connected in the inside of PLC cabinet body, the inside of the PLC cabinet body and at the position close to phase sequence protector is provided with power filter, the inside of the PLC cabinet body and at the position close to power filter is fixedly connected with direct current power module, the inside of the PLC cabinet body is installed with isolator, the inside of the PLC cabinet body and at the position away from isolator is installed with diode, the inside of the PLC cabinet body is installed with terminal, the both sides of the PLC cabinet body are fixedly connected with heat dissipation box, the inside of the heat dissipation box is fixedly connected with suction fan, the inside of the heat dissipation box and at the lower side of suction fan is rotatably connected with sealing plate, the inside of the sealing plate is fixedly connected with volute spring, the secondary control circuit of the PLC cabinet body is installed with solid state relay, the top of the heat dissipation box is installed with terminal post, the inside of the heat dissipation box and at the position close to suction fan is installed with temperature sensor, the outer wall of the heat dissipation box is installed with controller.
[0008] As the preferred scheme of the utility model, the PLC cabinet body and the device associated with each other are communicated using Ethernet protocol and realize data interaction through switcher.
[0009] As the preferred scheme of the utility model, the wiring terminal is arranged according to respective working type, is divided into safety protection, direct current power supply, PLC switch quantity input terminal, PLC switch quantity output terminal, PLC analog quantity input terminal, PLC analog quantity output terminal, the phase sequence protector, power filter are all connected with the power supply main primary loop incoming line of PLC cabinet body through wire.
[0010] As the preferred scheme of the utility model, the direct current power module is the secondary control loop power supply of PLC cabinet body, the slow-melting fuse for matching the electric current of load is arranged before any output power supply anode of the direct current power module to load, the isolator and the input and output analog quantity of PLC cabinet body, diode and the output switch quantity of PLC cabinet body are all connected through wire.
[0011] As the preferred scheme of the utility model, the heat dissipation box and the exhaust fan are all provided with two groups, the connection mode of temperature sensor, binding post, exhaust fan and controller is all electric connection.
[0012] As the preferred scheme of the utility model, the heat dissipation box is L-shaped structure design, the connection mode of volute spring and heat dissipation box is fixed connection.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] 1. The utility model discloses a kind of integrated intelligent control systems of PLC cabinet, utilize the control mechanism in the device to carry out integrated control, PLC cabinet body is communicated with mutually associated equipment by Ethernet protocol and realizes data interaction by industrial switch, switch can actively detect the communication state of each serial port, to serial port data exception packet loss, line drop, data flow exception, abnormal device access etc., automatic alarm and output corresponding alarm content, simultaneously, bandwidth, intelligent fan and port operating state can be shown on switch, the port operating condition and load condition are accurately judged, power supply main primary circuit incoming line of PLC cabinet body is installed phase sequence protector, can be automatically or logically controlled to disconnect circuit when power supply appears open phase or phase sequence error, effectively protect equipment in cabinet, power supply filter installed on power supply main primary circuit incoming line, can reduce the interference of power supply to equipment in cabinet, suppress electromagnetic interference, improve the performance and reliability of equipment in cabinet, protect the safety of equipment in cabinet and improve power supply quality, DC power module is powered to secondary control circuit in the PLC cabinet body, low voltage safety, improve power supply quality, secondary control circuit in the PLC cabinet body is provided with solid state relay, guarantee the stability of control circuit, simultaneously, isolator is additionally installed on input output analog quantity in the PLC cabinet body, effectively protect PLC cabinet body from the influence of electrical noise, electromagnetic interference or voltage fluctuation existing in external circuit, diode is additionally installed on output switching quantity in the PLC cabinet body, avoid potential high voltage and high current impact internal output module existing in external circuit, solve the problem that existing PLC cannot carry out integrated control to equipment, and the intelligent degree is lower. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0016] Figure 2 It is the front view of the utility model;
[0017] Figure 3 It is the utility model Figure 2 Enlarged view of A in the utility model.
[0018] In the drawing: 1, PLC cabinet body; 2, control mechanism; 3, switch; 201, phase sequence protector; 202, power supply filter; 203, DC power module; 204, isolator; 205, diode; 206, wiring terminal; 207, heat dissipation box; 208, exhaust fan; 209, sealing plate; 210, volute spring; 211, solid state relay; 212, terminal post; 213, temperature sensor; 214, controller. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.
[0020] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, several embodiments of the present application are given, however, the present application can be realized in many different forms and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0021] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar terms as used herein are for the purpose of illustration only.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "including", "comprising", "having" and the like are specifically intended to be equivalent to the term "consisting of".
[0023] Embodiments, please refer to Figures 1-3 The present application provides a technical solution:
[0024] A comprehensive intelligent control system of a PLC cabinet, comprising a PLC cabinet body 1, a control mechanism 2 is arranged in the PLC cabinet body 1, and a switch 3 is installed on the top of the PLC cabinet body 1.
[0025] The PLC cabinet body 1 and the devices associated with each other communicate through the Ethernet protocol and realize data interaction through the switch 3.
[0026] In this embodiment, reference is made to Figure 2 and Figure 3The control mechanism 2 comprises a phase sequence protector 201 fixedly connected inside the PLC cabinet body 1, a power filter 202 arranged inside the PLC cabinet body 1 and close to the phase sequence protector 201, a DC power module 203 fixedly connected inside the PLC cabinet body 1 and close to the power filter 202, an isolator 204 installed inside the PLC cabinet body 1, a diode 205 installed inside the PLC cabinet body 1 and away from the isolator 204, a wiring terminal 206 installed inside the PLC cabinet body 1, heat dissipation boxes 207 fixedly connected on both sides of the PLC cabinet body 1, an air suction fan 208 fixedly connected inside the heat dissipation box 207, a sealing plate 209 rotatably connected inside the heat dissipation box 207 and below the air suction fan 208, a volute spring 210 fixedly connected inside the sealing plate 209, a solid-state relay 211 installed in a secondary control circuit of the PLC cabinet body 1, a wiring column 212 installed on the top of the heat dissipation box 207, a temperature sensor 213 installed inside the heat dissipation box 207 and close to the air suction fan 208, and a controller 214 installed on the outer wall of the heat dissipation box 207.
[0027] The connection terminal 206 is arranged according to the respective working type and is divided into safety protection, DC power supply, PLC switch quantity input end, PLC switch quantity output end, PLC analog quantity input end, PLC analog quantity output end, the phase sequence protector 201 and the power filter 202 are connected with the power supply main primary circuit incoming line of the PLC cabinet body 1 through wires, the DC power supply module 203 supplies power for the secondary control circuit of the PLC cabinet body 1, the slow-melting fuse for matching the load current is arranged before any output power supply positive pole of the DC power supply module 203, the isolator 204 and the diode 205 are connected with the input and output analog quantity of the PLC cabinet body 1 and the output switch quantity of the PLC cabinet body 1 through wires, the heat dissipation box 207 and the air suction fan 208 are both provided with two groups, the temperature sensor 213, the binding post 212 and the air suction fan 208 are electrically connected with the controller 214, the heat dissipation box 207 is designed in an L-shaped structure, the connection between the volute spring 210 and the heat dissipation box 207 is fixed connection, the PLC cabinet body 1 communicates with the interrelated devices through the Ethernet protocol and realizes data interaction through the switch 3, the switch 3 can actively detect the communication state of each serial port, automatically alarms and outputs the corresponding alarm content when the data packet loss, line drop, data flow anomaly, abnormal device access and other data of the serial port are abnormal, at the same time, the bandwidth, intelligent fan and port working state can be displayed on the switch 3, the port working condition and the load condition are accurately judged, the phase sequence protector 201 is installed on the power supply main primary circuit incoming line of the PLC cabinet body 1, which can automatically or logically control the circuit to be disconnected when the power supply lacks phase or the phase sequence is wrong, effectively protecting the equipment in the cabinet, in addition, the power filter 202 installed on the power supply main primary circuit incoming line can reduce the interference of the power supply on the equipment in the cabinet, suppress electromagnetic interference, improve the performance and reliability of the equipment in the cabinet, protect the safety of the equipment in the cabinet and improve the power quality, the DC power supply module 203 supplies power for the secondary control circuit in the PLC cabinet body 1, which is low-voltage safe and improves the power supply quality, the solid-state relay 211 is arranged in the secondary control circuit in the PLC cabinet body 1, which guarantees the stability of the control circuit, at the same time, the isolator 204 is additionally installed on the input and output analog quantity in the PLC cabinet body 1, which effectively protects the PLC cabinet body 1 from the influence of electrical noise, electromagnetic interference or voltage fluctuation existing in the external circuit, the diode 205 is additionally installed on the output switch quantity in the PLC cabinet body 1, which avoids the potential large voltage and large current impact on the internal output module from the external circuit.
[0028] The utility model discloses a working procedure: when the comprehensive intelligent control system of the PLC cabinet of the design of the present scheme is in operation, the PLC cabinet body 1 is communicated with the interrelated equipment through ethernet protocol and realizes data interaction through switch 3, and switch 3 can actively detect the communication state of each serial port, and automatically alarms and outputs corresponding alarm content to abnormal packet loss, line drop, data flow anomaly, abnormal equipment access and the like of serial port output data, simultaneously, the bandwidth, intelligent fan and port working state on switch 3 can be displayed, and the port working condition and load condition are accurately judged, the power supply main primary circuit incoming line of the PLC cabinet body 1 is installed phase sequence protector 201, can automatically or logically control the opening circuit when the power supply is short of phase or phase sequence error, effectively protects the equipment in the cabinet, in addition, the power supply filter 202 installed on the power supply main primary circuit incoming line can reduce the interference of power supply to the equipment in the cabinet, suppress electromagnetic interference, improve the performance and reliability of the equipment in the cabinet, protect the safety of the equipment in the cabinet and improve the power quality, the DC power module 203 is powered to the secondary control circuit in the PLC cabinet body 1, low voltage safety, improves the power supply quality, and the secondary control circuit in the PLC cabinet body 1 is provided with solid state relay 211, guarantees the stability of control circuit, simultaneously, the isolator 204 is additionally installed on the input and output analog quantity in the PLC cabinet body 1, effectively protects the PLC cabinet body 1 from the influence of electrical noise, electromagnetic interference or voltage fluctuation existing in external circuit, and the diode 205 is additionally installed on the output switching quantity in the PLC cabinet body 1, avoids that the external circuit exists potential high voltage and high current impact internal output module, when the temperature sensor 213 detects that the temperature in the PLC cabinet body 1 is too high, the controller 214 starts the air suction fan 208, the air suction fan 208 draws internal hot air into the heat dissipation box 207, the hot air in the heat dissipation box 207 flows downwards and pushes away the sealing plate 209, thereby flowing out of the heat dissipation box 207, and simultaneously the cold air of outside enters the PLC cabinet body 1 through the air inlet screen net on the top of the PLC cabinet body 1, reduces the temperature in the PLC cabinet body 1, when the temperature in the PLC cabinet body 1 reduces, the controller 214 closes the air suction fan 208, and the air suction fan 208 does not draw out air any more, and the volute spring 210 drives the sealing plate 209 to rotate upwards, and the sealing plate 209 reblocks the heat dissipation box 207.
[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A comprehensive intelligent control system for a PLC cabinet, comprising a PLC cabinet body (1), characterized in that: The PLC cabinet body (1) is equipped with a control mechanism (2) inside, and a switch (3) is installed on the top of the PLC cabinet body (1); The control mechanism (2) includes a phase sequence protector (201) fixedly connected inside the PLC cabinet body (1), a power filter (202) provided inside the PLC cabinet body (1) near the phase sequence protector (201), a DC power module (203) fixedly connected inside the PLC cabinet body (1) near the power filter (202), an isolator (204) installed inside the PLC cabinet body (1), a diode (205) installed inside the PLC cabinet body (1) away from the isolator (204), and a terminal block (206) installed inside the PLC cabinet body (1). Both sides of the heat sink are fixedly connected to a heat sink (207). An exhaust fan (208) is fixedly connected inside the heat sink (207). A sealing plate (209) is rotatably connected inside the heat sink (207) and below the exhaust fan (208). A spiral spring (210) is fixedly connected inside the sealing plate (209). A solid-state relay (211) is installed in the secondary control circuit of the PLC cabinet body (1). A terminal block (212) is installed on the top of the heat sink (207). A temperature sensor (213) is installed inside the heat sink (207) and near the exhaust fan (208). A controller (214) is installed on the outer wall of the heat sink (207).
2. The integrated intelligent control system for a PLC cabinet according to claim 1, characterized in that: The PLC cabinet body (1) communicates with the interconnected devices using the Ethernet protocol and achieves data interaction through the switch (3).
3. The integrated intelligent control system for a PLC cabinet according to claim 1, characterized in that: The terminals (206) are arranged according to their respective working types, and are divided into safety protection, DC power supply, PLC digital input terminal, PLC digital output terminal, PLC analog input terminal, and PLC analog output terminal. The phase sequence protector (201) and power filter (202) are connected to the main primary circuit power supply line of the PLC cabinet body (1) through wires.
4. The integrated intelligent control system for a PLC cabinet according to claim 1, characterized in that: The DC power supply module (203) supplies power to the secondary control circuit of the PLC cabinet body (1). Before any output power supply positive terminal of the DC power supply module (203) is connected to the load, a slow-blow fuse matching the load current is installed. The isolator (204) is connected to the input and output analog quantities of the PLC cabinet body (1), and the diode (205) is connected to the output switching quantities of the PLC cabinet body (1) through wires.
5. The integrated intelligent control system for a PLC cabinet according to claim 1, characterized in that: The heat sink (207) and the exhaust fan (208) are each provided with two sets. The temperature sensor (213), the terminal block (212), the exhaust fan (208) and the controller (214) are all connected electrically.
6. The integrated intelligent control system for a PLC cabinet according to claim 1, characterized in that: The heat sink (207) has an L-shaped structure design, and the spiral spring (210) is fixedly connected to the heat sink (207).