Hydropower intelligent PLC erection protection device

Abstract

The utility model discloses water and electricity intelligence PLC erects protection device, including protection box subassembly still including display, emergency stop button, the one side of protection box subassembly is provided with display, the below of display is provided with emergency stop button, protection box subassembly includes the box body, the front end surface of box body is provided with the cabinet door, the inside of box body is provided with PLC installation backplate, the utility model discloses the inside electric equipment protection of its through box body and cabinet door, PLC installation backplate is used to the installation of PLC circuit board, fuse is the fusing protection device of power supply circuit, prevents the current overload damage PLC circuit board, and the protection function of circuit is realized to the cooperation air switch, the one side of utility model box body is provided with display, emergency stop button, and display is used to real -time display circuit monitoring information of electric control ware, and the information display effect of water and electricity circuit is convenient, and emergency stop button is used to operate personnel to respond to the quick disconnection equipment circuit under the emergency situation, to protect PLC circuit and other electric equipment.

Description

Technical Field

[0001] This utility model relates to the field of PLC installation protection technology, and in particular to a protection device for the installation of intelligent PLCs in hydropower. Background Technology

[0002] As the hydropower industry transforms towards intelligence and automation, PLCs (Programmable Logic Controllers) are widely used as core control units in key aspects of hydropower station operations, such as unit operation, gate control, and power transmission. Traditional devices have slow response speeds and cumbersome logic modifications, making them difficult to adapt to the needs of complex scenarios such as new energy grid connection and cross-regional power grid dispatch. With its high reliability, strong anti-interference capabilities, and flexible programming characteristics, PLCs have gradually become the core carrier of hydropower system protection devices, undertaking important functions such as real-time monitoring of equipment status, execution of fault isolation, and triggering of emergency protection. They are the "nerve center" for ensuring the safe and stable operation of hydropower stations.

[0003] Emergency electrical control operation procedures are cumbersome: critical operations such as emergency shutdown and load shedding require multiple levels of authorization verification and instruction confirmation. Some older systems even rely on dual triggering of physical buttons and software operation. In the event of sudden short circuits, equipment overloads, or other emergencies, the excessively long operation time can easily lead to secondary accidents such as PLC circuit board burnout and motor insulation breakdown. This dual problem of "insufficient information display + delayed operation" directly results in a decrease in the protection response efficiency of the protection device for the core circuit and electrical equipment. Utility Model Content

[0004] In order to overcome the problem that existing hydropower PLC installation protection devices are complex in terms of information display and emergency electrical control operation, resulting in poor protection effect and low monitoring efficiency for PLCs and other electrical equipment, this utility model provides a hydropower intelligent PLC installation protection device.

[0005] The technical solution is as follows: A water and electricity intelligent PLC installation protection device includes a protection box assembly, a display, and an emergency button; a display is installed on one side of the protection box assembly; an emergency button is installed below the display; the protection box assembly includes a box body; a door is installed on the front side of the box body, and the door is hinged to the box body; a PLC mounting backplate is installed inside the box body, and the PLC mounting backplate is fixedly connected to the inner wall of the box body, and mounting holes are provided on the front side of the PLC mounting backplate; a fuse is installed on the front side of the PLC mounting backplate.

[0006] Furthermore, the fuse is fixedly connected to the PLC mounting backplate by insulating bolts; an air switch is installed above the fuse and is fixedly connected to the inner wall of the enclosure.

[0007] Furthermore, an electronic controller is installed above the air switch, and the electronic controller is fixedly connected to the inner wall of the enclosure. The electronic controller is also electrically connected to the display and the emergency stop button.

[0008] Furthermore, a connector is installed below the fuse, and the connector is fixedly connected to the inner wall of the enclosure.

[0009] Furthermore, the emergency stop button is disconnected from the power supply circuit of the electronic controller.

[0010] Furthermore, there are hanging brackets at the top and bottom of the rear of the box, and the hanging brackets are fixedly connected to the outer shell of the box; there is a wiring nut on the lower end face of the box, and the wiring nut is threadedly connected to the box.

[0011] Furthermore, the fuse is provided with a wiring channel on its exterior, and the wiring channel is fixedly connected to the inner wall of the enclosure.

[0012] The beneficial effects are as follows: This utility model protects the internal electrical equipment through the enclosure and the door. The PLC mounting backplate is used for the installation of the PLC circuit board. The fuse is a fuse protection device for the power supply circuit to prevent current overload from damaging the PLC circuit board. It works in conjunction with the air switch to realize the circuit protection function. One side of the enclosure of this utility model is equipped with a display and an emergency button. The display is used to display the circuit monitoring information of the electrical controller in real time, which facilitates the display of information of water and electricity circuits. The emergency button is used by the operator to quickly disconnect the equipment circuit in an emergency, which protects the PLC circuit and other electrical equipment, and greatly improves the safety of electrical equipment in emergency situations.

[0013] By incorporating cable trays and connector nuts, the connector nuts facilitate the connection between power cables, control cables, and connectors, greatly improving cable connection stability and outdoor waterproofing performance. The cable trays also enhance the convenience of cable routing within the enclosure, improve cable neatness, and increase maintenance ease. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall bottom-view three-dimensional structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall rear-view three-dimensional structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the overall internal three-dimensional structure of this utility model;

[0018] Figure 5 This is a side-view perspective view of the protective box assembly of this utility model.

[0019] In the attached diagram, the following are the reference numerals: 1. Protection box assembly; 2. Display; 3. Emergency button; 101. Box body; 102. Box door; 103. Wiring nut; 104. Hanger; 105. PLC mounting backplate; 106. Cable tray; 107. Fuse; 108. Air switch; 109. Electrical controller; 110. Connector. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-5 As shown, the water and electricity intelligent PLC mounting protection device includes a protection box assembly 1, a display 2, and an emergency button 3; the display 2 is installed on one side of the protection box assembly 1; the emergency button 3 is installed below the display 2; the protection box assembly 1 includes a box body 101; a box door 102 is installed on the front end of the box body 101, and the box door 102 is hinged to the box body 101; a PLC mounting backplate 105 is installed inside the box body 101, and the PLC mounting backplate 105 is fixedly connected to the inner wall of the box body 101, and the front end of the PLC mounting backplate 105 is provided with mounting holes; a fuse 107 is installed on the front end of the PLC mounting backplate 105.

[0023] The fuse 107 is fixedly connected to the PLC mounting backplate 105 by insulating bolts; an air switch 108 is provided above the fuse 107, and the air switch 108 is fixedly connected to the inner wall of the enclosure 101.

[0024] An electronic controller 109 is provided above the air switch 108, and the electronic controller 109 is fixedly connected to the inner wall of the housing 101. The electronic controller 109 is also electrically connected to the display 2 and the emergency button 3.

[0025] A connector 110 is provided below the fuse 107, and the connector 110 is fixedly connected to the inner wall of the housing 101.

[0026] The switch of emergency button 3 disconnects the power supply circuit of the electronic controller 109.

[0027] The enclosure 101 and the door 102 protect the internal electrical equipment. The PLC mounting backplate 105 is used to install the PLC circuit board. The fuse 107 is a fuse protection device for the power supply circuit to prevent current overload from damaging the PLC circuit board. Together with the air switch 108, it realizes the circuit protection function. On one side of the enclosure 101, there is a display 2 and an emergency button 3. The display 2 is used to display the circuit monitoring information of the controller 109 in real time, which facilitates the information display effect of the water and electricity circuit. The emergency button 3 is used by the operator to quickly disconnect the equipment circuit in an emergency, so as to protect the PLC circuit and other electrical equipment, and greatly improve the safety of the electrical equipment in an emergency.

[0028] Example 2

[0029] Based on Example 1, such as Figures 1-5 As shown, hangers 104 are provided at both the upper and lower rear ends of the housing 101, and the hangers 104 are fixedly connected to the outer shell of the housing 101; a wiring nut 103 is provided on the lower end face of the housing 101, and the wiring nut 103 is threadedly connected to the housing 101.

[0030] The fuse 107 is provided with a wiring trough 106 on its exterior, and the wiring trough 106 is fixedly connected to the inner wall of the housing 101.

[0031] With the installation of cable tray 106 and terminal nut 103, the terminal nut 103 is used to connect the power supply cable, control cable and connector 110, which greatly improves the connection stability and outdoor waterproof performance of the cable. Cable tray 106 improves the convenience of cable routing and arrangement in the box 101, improves the neatness of cable arrangement and improves the convenience of maintenance.

Claims

1. A hydropower intelligent PLC installation protection device, comprising a protection box assembly (1), characterized in that: It also includes a display (2) and an emergency button (3); the display (2) is provided on one side of the protective box assembly (1); the emergency button (3) is provided below the display (2); the protective box assembly (1) includes a box body (101); a box door (102) is provided on the front end of the box body (101), and the box door (102) is hinged to the box body (101); a PLC mounting backplate (105) is provided inside the box body (101), and the PLC mounting backplate (105) is fixedly connected to the inner wall of the box body (101), and the front end of the PLC mounting backplate (105) is provided with mounting holes; a fuse (107) is provided on the front end of the PLC mounting backplate (105).

2. The hydropower intelligent PLC installation protection device according to claim 1, characterized in that: The fuse (107) is fixedly connected to the PLC mounting backplate (105) by insulating bolts; an air switch (108) is provided above the fuse (107), and the air switch (108) is fixedly connected to the inner wall of the enclosure (101).

3. The hydropower intelligent PLC installation protection device according to claim 2, characterized in that: An electric controller (109) is provided above the air switch (108), and the electric controller (109) is fixedly connected to the inner wall of the enclosure (101), and the electric controller (109) is electrically connected to the display (2) and the emergency button (3).

4. The hydropower intelligent PLC installation protection device according to claim 1, characterized in that: A connector (110) is provided below the fuse (107), and the connector (110) is fixedly connected to the inner wall of the enclosure (101).

5. The hydropower intelligent PLC installation protection device according to claim 1, characterized in that: The emergency button (3) is disconnected from the power supply circuit of the electronic controller (109).

6. The hydropower intelligent PLC installation protection device according to claim 1, characterized in that: Hangers (104) are provided at both the upper and lower rear ends of the box (101), and the hangers (104) are fixedly connected to the outer shell of the box (101); a wiring nut (103) is provided on the lower end face of the box (101), and the wiring nut (103) is threadedly connected to the box (101).

7. The hydropower intelligent PLC installation protection device according to claim 1, characterized in that: The fuse (107) is provided with a wiring trough (106) on the outside, and the wiring trough (106) is fixedly connected to the inner wall of the housing (101).

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