PLC (Programmable Logic Controller) power supply protection equipment

Abstract

The utility model relates to the field of PLC power supply protection, in particular to PLC power supply protection equipment which comprises a cabinet body, a cabinet door, a protection plate and a main switch module, the cabinet door is hinged to the front portion of the cabinet body, an observation window is arranged on the upper portion of the cabinet door in an embedded mode, insulation frames protruding forwards are arranged on the two sides of the rear portion in the cabinet body, and the protection plate is jointly fixed between the two insulation frames. A main switch module is installed in the middle of the rear portion in the cabinet body, an empty groove is formed in the middle of the protection plate, and a power switch of the main switch module extends into the empty groove. By introducing the linkage design of the electric sliding rail and the pushing frame, it is ensured that a power source can be rapidly cut off when power abnormity or fire hazards are detected, larger accidents caused by power failures are effectively prevented, and the safety of personnel and equipment is guaranteed; a fire extinguishing system composed of a built-in fire extinguishing tank, a guide pipe and a nozzle is combined with automatic control of an electric cylinder and a push plate, a fire extinguishing agent can be quickly released when a fire occurs in the initial stage, and fire loss is reduced to the maximum extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of PLC power supply protection, especially to a PLC power supply protection device. BACKGROUND

[0002] The power supply protection of PLC (Programmable Logic Controller) power supply is the key to ensure the stable operation of PLC system and prolong the service life. In order to prevent hardware damage or system failure caused by power problems, PLC power supply usually needs to be equipped with multiple power supply protection mechanisms.

[0003] Through retrieval, a PLC power supply protection device disclosed in Chinese patent publication No. CN217361316U is mainly installed through the setting of a transformer, which realizes the voltage transformation protection for PLC power supply, and then the outside air is circulated inside the protection cabinet through the rotating shaft and fan blades to realize the heat dissipation of the transformer and other electrical appliances. However, in specific applications, when the grid voltage fluctuation exceeds the range that the PLC power supply can withstand, such as too high may cause electronic components to burn out, and too low may cause system instability or even misoperation. In this case, power should be cut off in time to avoid potential risks, but the above-mentioned device does not have an effective emergency power-off mechanism, thereby limiting its safety and reliability in extreme situations.

[0004] Therefore, it is particularly important to provide a PLC power supply protection device with emergency power-off measures. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a PLC power supply protection device with emergency power-off measures.

[0006] The utility model discloses a technical implementation scheme of a PLC power supply protection device, which comprises a cabinet body, a cabinet door, a protection plate, a total switch module, a circuit controller, an electric slide rail, a pushing frame, a smoke sensor, a conduit one, a conduit two, a fire extinguishing tank, an electric cylinder, a push plate and a ventilation window.

[0007] Further, the utility model further comprises a driven gear, a driving gear and a motor, the through -going portion outside of conduit one is provided with driven gear, and the output shaft of motor is provided with driving gear, and the driving gear and the corresponding driven gear of upper portion rotationally engages, can realize the rotation of conduit one.

[0008] Further, the cover frame of the cabinet body covers the outside of the conduit, the fire extinguishing tank, the electric cylinder, the push plate, the driven gear, the driving gear and the motor.

[0009] Further, the utility model further comprises a dehumidifier, and the inside of cabinet body is installed with dehumidifier.

[0010] Further, the utility model further comprises an air inlet fan and an air outlet fan, and the inside of cabinet body is installed with air inlet fan and air outlet fan respectively at the position corresponding to two ventilation windows.

[0011] Further, the utility model further comprises an alarm, and the top of cabinet body is installed with alarm, and the alarm is electrically connected with smoke sensor.

[0012] Further, the utility model further comprises a mounting lifting hook, and the top of cabinet body is provided with mounting lifting hook on both sides, and the lifting hole is formed in the mounting lifting hook.

[0013] The beneficial effects are: 1. By introducing the linkage design of the electric sliding rail and the pushing frame, the power supply can be quickly cut off when the power anomaly or fire hazard is detected, the larger accident caused by power failure is effectively prevented, and the safety of personnel and equipment is ensured; the fire extinguishing system composed of the built-in fire extinguishing tank, the pipe and the spray head can quickly release the fire extinguishing agent when the initial fire occurs, and the fire loss is minimized.

[0014] 2. The circuit controller continuously monitors the input voltage, current and other key parameters to ensure that the system is within a safe range, and when an abnormal situation occurs, the corresponding protection mechanism such as power failure, ventilation and the like can be automatically started to avoid system failure.

[0015] 3. The dehumidifier maintains a dry internal environment to reduce the risk of corrosion; the forced air circulation formed by the air inlet fan and the air outlet fan helps to dissipate heat, maintains a suitable working temperature, and prolongs the service life of electrical components. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the cover plate, the main gate module and the electric sliding rail and other components of the utility model.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the cabinet, the circuit controller and the main gate of the utility model.

[0019] Figure 4 It is a sectional view of the pipe, the smoke sensor and the fire extinguishing tank and other components of the utility model.

[0020] Figure 5 It is a sectional view of the cylinder, the push plate and the driven gear and other components of the utility model.

[0021] BRIEF DESCRIPTION OF DRAWINGS: 1. Cabinet, 2. Cabinet door, 3. Guard plate, 4. Main gate module, 41. Circuit controller, 5. Electric sliding rail, 6. Pushing frame, 7. Smoke sensor, 8. Pipe one, 9. Pipe two, 10. Fire extinguishing tank, 11. Cylinder, 12. Push plate, 13. Driven gear, 14. Driving gear, 15. Motor, 16. Dehumidifier, 17. Air inlet fan, 171. Air outlet fan, 18. Ventilation window, 19. Alarm, 20. Mounting hook. DETAILED DESCRIPTION

[0022] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names, and the disclosure contained throughout the specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, and lateral, also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0023] Example: A PLC power supply protection device, such as Figures 1-5 As shown, the system includes a cabinet 1, cabinet door 2, protective panel 3, main switch module 4, circuit controller 41, electric slide rail 5, push frame 6, smoke sensor 7, conduit one 8, conduit two 9, fire extinguisher 10, electric cylinder 11, push plate 12, and ventilation window 18. The cabinet 1 serves as the carrier for all components, providing structural support and protection. It secures all internal components by welding or bolting to ensure overall structural stability. The side of the cabinet 1 has a cover frame, and the front of the cabinet 1 is hinged to a cabinet door 2. An observation window is embedded in the upper part of the cabinet door 2 for convenient real-time monitoring of the internal status. The inner rear section has two protruding insulating frames on both sides. A protective plate 3 is fixed between the two insulating frames by screws. The protective plate 3 ensures the safe isolation of electrical components, preventing short circuits and other electrical faults. A main switch module 4 is installed in the middle of the inner rear section of the cabinet 1, responsible for controlling the overall circuit's on / off state. A slot is cut in the middle of the protective plate 3, into which the power switch of the main switch module 4 extends. Circuit controllers 41 are installed on the other two sides of the inner rear section of the cabinet 1. The circuit controllers 41 are electrically connected to the main switch module 4 via wires, enabling centralized management of power distribution and protection. The slot in the protective plate 3... Electric slide rails 5 are installed on both sides of the front. A pusher frame 6 is slidably mounted between the two electric slide rails 5. The lower part of the pusher frame 6 has anti-slip teeth, which slide in contact with the power switch of the main switch module 4 to achieve power circuit closure. A smoke sensor 7 is installed at the top inside the cabinet 1. The smoke sensor 7 is electrically connected to the main switch module 4 via wires to monitor the smoke concentration in the air in real time. Once the smoke sensor 7 detects an abnormality, it immediately triggers an alarm and power-off mechanism. A duct 8 is rotatably and penetratingly installed in the upper part of the cabinet 1. Several nozzles are provided at the lower part of the duct 8 for... The extinguishing agent is evenly distributed. The through part of the first conduit 8 is connected to the second conduit 9 located outside the cabinet 1. The fire extinguishing tank 10 is installed inside the cover frame. The output end of the fire extinguishing tank 10 is connected to the second conduit 9. An electric cylinder 11 is installed on the upper side of the cabinet 1. A push plate 12 is provided on the telescopic end of the electric cylinder 11. The push plate 12 is in contact with the handle of the fire extinguishing tank 10. The fire extinguishing tank 10 is used to store the extinguishing agent. The extinguishing agent is released by pushing the push plate 12 and pressing the handle through the electric cylinder 11. Ventilation windows 18 are embedded on the other side and bottom of the cabinet 1 to help the equipment dissipate heat and maintain a suitable working temperature.

[0024] like Figure 5As shown in FIG. 1, the device further comprises a driven gear 13, a driving gear 14 and a motor 15. The driven gear 13 is arranged outside the through portion of the conduit 8. The motor 15 is arranged below the through portion of the conduit 8 on the upper side of the cabinet. The driving gear 14 is arranged on the output shaft of the motor 15. The driving gear 14 is in rotational engagement with the corresponding driven gear 13 above, so as to realize the rotation of the conduit 8. The cover frame of the cabinet 1 covers the outside of the conduit, the fire extinguishing tank 10, the electric cylinder 11, the push plate 12, the driven gear 13, the driving gear 14 and the motor 15.

[0025] As shown in FIG. 1, the device further comprises a dehumidifier 16. The dehumidifier 16 is arranged inside the cabinet 1 through a support, so as to maintain the dry environment inside the cabinet 1 and reduce the risk of corrosion. Figure 4 Figure 5 As shown in FIG. 1, the device further comprises an air inlet fan 17 and an air outlet fan 171. The air inlet fan 17 and the air outlet fan 171 are respectively arranged inside the cabinet 1 at positions corresponding to the two air vents 18, so as to form forced air circulation, help heat dissipation and maintain suitable working temperature.

[0026] As shown in FIG. 1, the device further comprises an alarm 19. The alarm 19 is arranged on the top of the cabinet 1. The alarm 19 is electrically connected with the smoke sensor 7 through wires. The alarm 19 can issue sound and light warning to remind the operator to pay attention to potential danger. Figure 3 As shown in FIG. 1, the device further comprises a mounting hook 20. The mounting hook 20 is arranged on both sides of the top of the cabinet. The mounting hook 20 facilitates the carrying and installation of the equipment. The mounting hook 20 is provided with a lifting hole, so as to ensure safe lifting.

[0027] Figure 1 As shown in FIG. 1, the device further comprises a mounting hook 20. The mounting hook 20 is arranged on both sides of the top of the cabinet. The mounting hook 20 facilitates the carrying and installation of the equipment. The mounting hook 20 is provided with a lifting hole, so as to ensure safe lifting. Figure 4 As shown in FIG. 1, the device further comprises a mounting hook 20. The mounting hook 20 is arranged on both sides of the top of the cabinet. The mounting hook 20 facilitates the carrying and installation of the equipment. The mounting hook 20 is provided with a lifting hole, so as to ensure safe lifting.

[0028] Figure 1 As shown in FIG. 1, the device further comprises a mounting hook 20. The mounting hook 20 is arranged on both sides of the top of the cabinet. The mounting hook 20 facilitates the carrying and installation of the equipment. The mounting hook 20 is provided with a lifting hole, so as to ensure safe lifting. Figure 4 As shown in FIG. 1, the device further comprises a mounting hook 20. The mounting hook 20 is arranged on both sides of the top of the cabinet. The mounting hook 20 facilitates the carrying and installation of the equipment. The mounting hook 20 is provided with a lifting hole, so as to ensure safe lifting.

[0029] ​​​In use, the external power line is connected to the total gate module 4, in the running state of the device, when the smoke sensor 7 detects abnormal smoke level, an alarm signal will be sent immediately, and the circuit controller 41 sends instructions, the electric slide rail 5 installed on both sides of the front part of the empty slot of the protection plate 3 moves quickly according to the preset program, so that the anti-skid teeth in the push frame 6 are separated from the power switch of the total gate module 4, the power supply is cut off, and larger accidents caused by power failure are prevented, the alarm 19 located at the top of the cabinet 1 is started synchronously, and an audible and visual warning is sent, reminding the operator to pay attention to the potential danger, at the same time, the electric cylinder 11 extends and retracts quickly, the push plate 12 pushes down the press button of the fire extinguishing tank 10, the fire extinguishing agent is released, the fire extinguishing agent is transported to the conduit I 8 by the conduit II 9, the motor 15 drives the driving gear 14 to rotate, the driven gear 13 rotates and meshes with the driving gear 14, the conduit I 8 rotates, the fire extinguishing agent is sprayed from the nozzle of the conduit I 8 to the cabinet 1, and the driven gear 13 drives the conduit I 8 to rotate, so that the fire extinguishing agent covers the whole space in the cabinet 1, and the initial fire is extinguished quickly, the air vents 18 in two directions of the cabinet 1 are matched with the air inlet fan 17 and the air outlet fan 171 to rotate, so that the air circulation is formed in the cabinet 1, heat dissipation is helped, and the suitable working temperature is maintained, and the dehumidifier 16 maintains the dry environment inside, and reduces the corrosion risk.

[0030] The technical principles of the embodiments of the utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the utility model, and cannot be explained as the limitation of the protection scope of the embodiments of the utility model in any way. Based on the explanation herein, other specific embodiments of the embodiments of the utility model can be thought of by those skilled in the art without creative labor, and these embodiments will fall into the protection scope of the embodiments of the utility model.

Claims

1. A PLC power supply protection device, comprising a cabinet (1) and a cabinet door (2), the cabinet (1) is provided with a cover frame on the side, the cabinet (1) is hinged with the cabinet door (2) on the front, the cabinet door (2) is embedded with an observation window on the upper part, and the cabinet (1) is provided with an insulating frame protruding forward on both sides of the rear part, characterized in that, It further includes a protective plate (3), a total gate module (4), a circuit controller (41), an electric sliding rail (5), a push frame (6), a smoke sensor (7), a guide pipe I (8), a guide pipe II (9), a fire extinguishing tank (10), an electric cylinder (11), a push plate (12) and a ventilation window (18), the two insulating frames are fixed with the protective plate (3) together, the rear middle part of the cabinet (1) is provided with the total gate module (4), the middle part of the protective plate (3) is provided with a hollow slot, the power switch of the total gate module (4) is inserted into the hollow slot, the other two sides of the rear part of the cabinet (1) are provided with the circuit controller (41), the circuit controller (41) is electrically connected with the total gate module (4), the two sides of the front part of the hollow slot of the protective plate (3) are provided with the electric sliding rail (5), the push frame (6) is slidably arranged between the two electric sliding rails (5), the middle and lower part of the push frame (6) is provided with an anti-skid tooth, the anti-skid tooth is in sliding contact with the power switch of the total gate module (4), so as to realize the power closed circuit through the sliding contact, the top of the cabinet (1) is provided with the smoke sensor (7), the smoke sensor (7) is electrically connected with the total gate module (4), the upper part of the cabinet (1) is rotatably and penetratively provided with the guide pipe I (8), the lower part of the guide pipe I (8) is provided with a plurality of nozzles, the penetrating part of the guide pipe I (8) is sleeved with the guide pipe II (9) located outside the cabinet (1), the fire extinguishing tank (10) is installed in the cover frame, the output end of the fire extinguishing tank (10) is connected with the guide pipe II (9), the side part of the cabinet (1) is provided with the electric cylinder (11) near the upper part, the telescopic end of the electric cylinder (11) is provided with the push plate (12), the push plate (12) is in contact with the pressing handle of the fire extinguishing tank (10), the other side part and the bottom part of the cabinet (1) are embedded with the ventilation window (18).

2. A PLC power supply protection device according to claim 1, wherein It further includes a driven gear (13), a driving gear (14) and a motor (15), the penetrating part of the guide pipe I (8) is provided with the driven gear (13), the upper side of the cabinet is provided with the motor (15) below the penetrating part of the guide pipe I (8), the output shaft of the motor (15) is provided with the driving gear (14), the driving gear (14) is rotatably engaged with the corresponding driven gear (13) above, so as to realize the rotation of the guide pipe I (8).

3. A PLC power supply protection device as claimed in claim 2, characterized in that, The cover frame of the cabinet (1) covers the outside of the guide pipe, the fire extinguishing tank (10), the electric cylinder (11), the push plate (12), the driven gear (13), the driving gear (14) and the motor (15).

4. A PLC power supply protection device as claimed in claim 3, characterized in that, It further includes a dehumidifier (16), the inside of the cabinet (1) is provided with the dehumidifier (16).

5. A PLC power supply protection device as claimed in claim 4, characterized in that, It further includes an air inlet fan (17) and an air outlet fan (171), the inside of the cabinet (1) is provided with the air inlet fan (17) and the air outlet fan (171) respectively at the positions corresponding to the two ventilation windows (18).

6. A PLC power supply protection device as claimed in claim 5, characterized in that, It further includes an alarm (19), the top of the cabinet (1) is provided with the alarm (19), the alarm (19) is electrically connected with the smoke sensor (7).

7. A PLC power supply protection device as claimed in claim 6, characterized in that, It further includes a mounting hook (20), the top of the cabinet is provided with the mounting hook (20) on both sides, the mounting hook (20) is provided with a hoisting hole.

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