High-safety low-voltage power distribution cabinet

Abstract

The utility model relates to the technical field of low-voltage power distribution cabinets, in particular to a high-safety low-voltage power distribution cabinet which has an automatic fire extinguishing function. Comprising a cabinet body, a cabinet door is movably installed at the front end of the cabinet body, and a fire extinguishing mechanism, a detection mechanism and a fireproof controller are arranged in the cabinet body; the fire extinguishing mechanism comprises a plurality of vertical rods, the vertical rods are fixedly connected with the inner wall of the cabinet body, spraying pipes are arranged in the vertical rods, a plurality of spraying heads are evenly arranged on the spraying pipes in the length direction of the spraying pipes, the spraying heads penetrate through the vertical rods and face the middle of the cabinet body, the spraying heads communicate with the spraying pipes, and the spraying heads and the detection mechanism are both electrically connected with the fireproof controller.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage power distribution cabinets, in particular to a high-safety low-voltage power distribution cabinet. Background Art

[0002] Low-voltage distribution cabinets are a crucial component of power systems, serving as electrical equipment for distributing low-voltage electrical energy, controlling, and protecting low-voltage circuits. They integrate switchgear, measuring instruments, protective devices, and auxiliary equipment within a closed or semi-enclosed metal cabinet or on a screen, following a predetermined electrical wiring scheme. Low-voltage distribution cabinets are widely used in various buildings, factories, substations, and other locations, playing a vital role in ensuring the proper operation of power systems and the safe use of electrical equipment. Their layout must meet the requirements for proper operation of the power system, ensuring ease of maintenance and ensuring safety for personnel and surrounding equipment.

[0003] Existing low-voltage distribution cabinets do not have the fire extinguishing function to deal with emergency fires. When an accidental fire occurs inside the distribution cabinet due to overload, short circuit, etc., it cannot respond in time and automatically extinguish the fire, thereby endangering the safety of people and equipment around it. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a high-safety low-voltage distribution cabinet with an automatic fire extinguishing function.

[0005] The utility model provides a high-safety low-voltage power distribution cabinet, comprising a cabinet body, a cabinet door movably installed at the front end of the cabinet body, a fire extinguishing mechanism, a detection mechanism and a fire protection controller arranged in the cabinet body; the fire extinguishing mechanism comprises a plurality of vertical poles, the vertical poles being fixedly connected to the inner wall of the cabinet body, a sprinkler pipe being arranged in the vertical poles, a plurality of nozzles being evenly arranged on the sprinkler pipes along their length, the nozzles passing through the vertical poles and arranged toward the middle of the cabinet body, the nozzles being connected to the sprinkler pipes, and the nozzles and the detection mechanism being electrically connected to the fire protection controller.

[0006] Furthermore, a delivery pipeline connected to the sprinkler pipe is provided on the cabinet, and one end of the delivery pipeline not connected to the sprinkler pipe is connected to an external fire foam device.

[0007] Furthermore, the detection mechanism includes a temperature sensor and a smoke sensor.

[0008] Furthermore, the plurality of vertical poles are all vertically arranged, and the plurality of vertical poles are evenly distributed at the four corners of the cabinet.

[0009] Furthermore, the fire protection controller includes a control box, in which a PLC controller and a signal transmitting module are arranged, and the signal transmitting module is electrically connected to the PLC controller.

[0010] Furthermore, a communication antenna is provided on the signal transmitting module, and the communication antenna passes through the control box and extends outward.

[0011] Furthermore, a plurality of cooling fans are provided on the cabinet, and shielding plates corresponding to the cooling fans and a driving mechanism for driving the shielding plates to move are provided in the cabinet.

[0012] Furthermore, the driving mechanism includes a slide groove symmetrically arranged on both sides of the cooling fan, a driving motor is arranged in the slide groove, the driving motor is electrically connected to the fire protection controller, a driving screw is arranged at the output end of the driving motor, a driving block is screwed onto the outside of the driving screw, and the driving block is fixedly connected to the baffle.

[0013] Furthermore, the driving screw is provided with threads at both ends in opposite directions, the two sections of threads are symmetrically distributed with respect to the center line of the driving screw, and the driving blocks are respectively located on the two sections of threads.

[0014] Furthermore, a ventilation hole is provided on the side wall of the cabinet, and a corresponding electric blind is provided in the ventilation hole, and the electric blind is electrically connected to the fire protection controller.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The detection mechanism detects abnormal conditions in the distribution cabinet. The fire protection controller receives information from the detection mechanism and decides whether to activate the fire extinguishing mechanism. When the detection mechanism detects a fire signal, the fire protection controller will activate the fire extinguishing mechanism and release the fire extinguishing agent through the nozzle. This design can quickly respond to fire incidents, reduce the losses caused by fire, and improve the response capability and safety of low-voltage distribution cabinets when facing fire threats. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0020] Figure 3 It is a structural schematic diagram of the vertical pole of the utility model;

[0021] Figure 4 It is a structural diagram of the top of the cabinet of the utility model;

[0022] Figure 5 This is a structural diagram of the shielding plate and the driving mechanism of the utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of the fire protection controller of the present utility model;

[0024] Markings in the attached figure: 1. Cabinet body; 2. Cabinet door; 3. Fire extinguishing mechanism; 4. Detection mechanism; 5. Fire protection controller; 6. Vertical pole; 7. Sprinkler pipe; 8. Nozzle; 9. Delivery pipeline; 10. Control box; 11. PLC controller; 12. Signal transmission module; 13. Communication antenna; 14. Cooling fan; 15. Shielding plate; 16. Driving mechanism; 17. Slide; 18. Driving screw; 19. Driving block; 20. Ventilation outlet; 21. Electric blinds. DETAILED DESCRIPTION

[0025] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] like Figures 1 to 6 As shown, the high-safety low-voltage distribution cabinet of the present invention includes a cabinet body 1, a cabinet door 2 is movably installed at the front end of the cabinet body 1, and a fire extinguishing mechanism 3, a detection mechanism 4 and a fire protection controller 5 are arranged in the cabinet body 1; the fire extinguishing mechanism 3 includes a plurality of vertical rods 6, the vertical rods 6 are fixedly connected to the inner wall of the cabinet body 1, a spray pipe 7 is arranged in the vertical rods 6, and a plurality of nozzles 8 are evenly arranged on the spray pipe 7 along its length direction. The nozzles 8 pass through the vertical rods 6 and are arranged toward the middle of the cabinet body 1. The nozzles 8 are connected to the spray pipe 7, and the nozzles 8 and the detection mechanism 4 are electrically connected to the fire protection controller 5;

[0027] The detection mechanism 4 detects abnormal conditions in the distribution cabinet, and the fire protection controller 5 receives information from the detection mechanism 4 and decides whether it is necessary to activate the fire extinguishing mechanism 3. When the detection mechanism 4 detects a fire signal, the fire protection controller 5 will activate the fire extinguishing mechanism 3 and release the fire extinguishing agent through the nozzle 8. This design can quickly respond to fire incidents, reduce the losses caused by fire, and improve the response capability and safety of the low-voltage distribution cabinet when facing fire threats.

[0028] The cabinet body 1 is provided with a delivery pipeline 9 connected to the sprinkler pipe 7, and the end of the delivery pipeline 9 not connected to the sprinkler pipe 7 is connected to an external fire foam device; the external fire foam device can continuously supply foam fire extinguishing agent, and the external fire foam device is connected to the sprinkler pipe 7 in the cabinet through the delivery pipeline 9. When a fire is detected, the fire extinguishing foam is transmitted from the external device to the inside of the distribution cabinet, thereby effectively extinguishing the fire and reducing the losses caused by the fire; compared with other fire extinguishing methods, the foam fire extinguishing agent has better coverage and cooling effects, and is particularly suitable for electrical fires.

[0029] As a preferred embodiment of the above, the detection mechanism 4 includes a temperature sensor and a smoke sensor; the temperature sensor is used to detect temperature changes inside the distribution cabinet, and the smoke sensor is used to detect whether smoke is generated inside the distribution cabinet. By combining the data of the temperature sensor and the smoke sensor, the fire controller 5 can more accurately determine whether a fire has occurred and take corresponding measures; when the fire controller 5 receives the alarm signals of the temperature sensor and the smoke sensor at the same time, it can be considered that the possibility of fire is very high, and the fire extinguishing system can be started immediately at this time; if only one sensor alarms, the fire controller 5 may enter an early warning state, reminding the staff to check and prepare to start the fire extinguishing system; through such a comprehensive detection mechanism, the response speed and fire extinguishing efficiency of the low-voltage distribution cabinet in the event of a fire can be significantly improved, ensuring the safety of personnel and equipment.

[0030] As a preferred embodiment of the above embodiment, multiple vertical poles 6 are arranged vertically, and multiple vertical poles 6 are evenly distributed at the four corners of the cabinet 1; this arrangement ensures that the sprinkler pipes 7 and the nozzles 8 are evenly distributed in space. When the detection mechanism 4 detects a fire signal, the fire controller 5 starts the fire extinguishing mechanism 3, and the foam enters the sprinkler pipe 7 inside each vertical pole 6 through the delivery pipeline 9, and is evenly sprayed inside the entire cabinet 1 through the nozzles 8, ensuring that the fire source can be quickly covered in the early stage of the fire, and the fire can be effectively controlled and extinguished.

[0031] As a preferred embodiment of the above embodiment, the fire protection controller 5 includes a control box 10, in which a PLC controller 11 and a signal transmission module 12 are provided, and the signal transmission module 12 is electrically connected to the PLC controller 11; by integrating the PLC controller 11 and the signal transmission module 12 in the control box 10, the fire protection controller 5 can realize intelligent control of the automatic fire extinguishing system of the low-voltage distribution cabinet, improve the response speed and accuracy of the system, enhance the remote monitoring capability and alarm function of the system, and thus better ensure the safety of personnel and equipment; the PLC controller 11 is a core component of the automatic control system, which is used to receive signals from the detection mechanism 4. According to a preset logic program, the PLC controller 11 analyzes the input signal and determines whether the fire extinguishing system needs to be activated. If it is determined that the fire extinguishing system needs to be activated, the PLC controller 11 will issue a start command to the sprinkler pipe 7 and the nozzle 8, and control the delivery pipeline 9 to open, so that the foam fire extinguishing agent can be delivered from the external fire foam device to the interior of the cabinet 1; the signal transmission module 12 is used to communicate with external equipment and send fire alarm information to the remote monitoring center or other designated recipients.

[0032] As a preferred embodiment of the above, a communication antenna 13 is provided on the signal transmitting module 12, and the communication antenna 13 extends outward through the control box 10; the communication antenna 13 can receive and send radio signals, ensuring that the signal transmitting module 12 can effectively establish contact with the external communication network, thereby realizing remote monitoring and alarm functions.

[0033] As a preferred embodiment of the above, a plurality of cooling fans 14 are provided on the cabinet 1, and a baffle 15 corresponding to the cooling fan 14 and a driving mechanism 16 for driving the baffle 15 to move are provided in the cabinet 1; the cooling fan 14 ensures that the low-voltage distribution cabinet can effectively dissipate heat during normal operation, and ensures that the temperature of the internal equipment is maintained within a safe range; when a fire signal is detected, the driving mechanism 16 will receive the signal and drive the baffle 15 to move to the blocking position, cutting off the ventilation path to prevent the fire from spreading, thereby improving the overall safety of the system.

[0034] As a preferred embodiment of the above, the driving mechanism 16 includes a slide 17 symmetrically arranged on both sides of the cooling fan 14, a driving motor is arranged in the slide 17, the driving motor is electrically connected to the fire protection controller 5, and a driving screw 18 is provided at the output end of the driving motor, and a driving block 19 is screwed to the outside of the driving screw 18, and the driving block 19 is fixedly connected to the baffle 15; the slide 17 is used to guide the horizontal movement of the baffle 15, and the slide 17 has sufficient strength and stability to ensure that the baffle 15 can move smoothly without jamming or offset; the driving motor is used to rotate the driving screw 18, and the driving block 19 screwed thereto moves along the driving screw 18, and the baffle 15 can move synchronously with the movement of the driving block 19 to close the vent of the cooling fan 14, quickly isolate the external environment, and prevent the spread of fire.

[0035] As a preferred embodiment of the above, the driving screw 18 is provided with threads in opposite directions at both ends, and the two sections of threads are symmetrically distributed with respect to the center line of the driving screw 18, and the driving blocks 19 are respectively located on the two sections of threads; through the bidirectional thread design, when the driving screw 18 rotates, the driving blocks 19 located on the threads at both ends can move toward the middle or outward at the same time, thereby realizing the rapid opening and closing of the baffles 15 on both sides, thereby improving the response speed and reliability of the system.

[0036] As a preferred embodiment of the above, a ventilation hole 20 is provided on the side wall of the cabinet 1, and a corresponding electric shutter 21 is provided in the ventilation hole 20, and the electric shutter 21 is electrically connected to the fire protection controller 5; the ventilation hole 20 is used for ventilation and heat dissipation during normal operation of the distribution cabinet, and the electric shutter 21 is used to control the opening and closing of the ventilation hole 20; under normal operating conditions, the electric shutter 21 is in an open state, and works together with the cooling fan 14 to ensure air circulation inside the cabinet 1. When a fire signal is detected, the fire protection controller 5 will issue an instruction to start the closing procedure of the electric shutter 21 to isolate it from the external environment.

[0037] The high-safety low-voltage distribution cabinet of the present invention is designed so that when it is working, the cooling fan 14 is started and the shielding plate 15 is in the open state, which does not affect the normal operation of the cooling fan 14. The air exchange is carried out through the vent 20 opened by the electric shutter 21 to ensure the heat dissipation requirements of the equipment inside the cabinet 1; the temperature sensor and the smoke sensor continuously monitor the temperature and smoke concentration inside the cabinet 1, and the monitoring data are transmitted to the PLC controller 11 in the fire protection controller 5; when the temperature sensor detects an abnormal temperature increase or the smoke sensor detects smoke, the detection signal is transmitted to the PLC controller 11, and the PLC controller After receiving the detection signal, the controller 11 analyzes it. If it is confirmed to be a fire signal, the emergency response procedure is initiated; the driving mechanism 16 is started, the driving motor drives the driving screw 18 to rotate, and the driving block 19 moves along the screw, driving the baffle 15 to close the vent of the cooling fan 14, close the electric shutter 21, and cut off the air circulation between the vent 20 and the outside world; the external fire foam device is turned on, and the foam is transported to the sprinkler pipe 7 through the delivery pipeline 9. The nozzle 8 starts to spray foam, covering the internal area of the cabinet 1, and the signal transmission module 12 sends a fire alarm signal to the remote monitoring center through the communication antenna 13.

[0038] The installation, connection or setting methods of the high-safety low-voltage distribution cabinet of the present invention are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-safety low-voltage distribution cabinet, characterized in that: The invention comprises a cabinet (1), wherein a cabinet door (2) is movably installed at the front end of the cabinet (1), and a fire extinguishing mechanism (3), a detection mechanism (4) and a fire prevention controller (5) are arranged in the cabinet (1); the fire extinguishing mechanism (3) comprises a plurality of vertical rods (6), the vertical rods (6) are fixedly connected to the inner wall of the cabinet (1), a spray pipe (7) is arranged in the vertical rods (6), and a plurality of nozzles (8) are evenly arranged on the spray pipe (7) along the length direction thereof, the nozzles (8) pass through the vertical rods (6) and are arranged toward the middle of the cabinet (1), the nozzles (8) are connected to the spray pipe (7), and the nozzles (8) and the detection mechanism (4) are both electrically connected to the fire prevention controller (5).

2. The high-safety low-voltage distribution cabinet according to claim 1, characterized in that: The cabinet (1) is provided with a delivery pipeline (9) in communication with the spray pipe (7), and one end of the delivery pipeline (9) not in communication with the spray pipe (7) is in communication with an external fire-fighting foam device.

3. The high-safety low-voltage distribution cabinet according to claim 1, characterized in that: The detection mechanism (4) includes a temperature sensor and a smoke sensor.

4. The high-safety low-voltage distribution cabinet according to claim 1, characterized in that: The plurality of vertical rods (6) are all arranged vertically, and the plurality of vertical rods (6) are evenly distributed at the four corners of the cabinet (1).

5. The high-safety low-voltage distribution cabinet according to claim 1, characterized in that: The fire protection controller (5) comprises a control box (10), wherein a PLC controller (11) and a signal transmitting module (12) are arranged in the control box (10), and the signal transmitting module (12) is electrically connected to the PLC controller (11).

6. The high-safety low-voltage distribution cabinet according to claim 5, characterized in that: The signal transmission module (12) is provided with a communication antenna (13), and the communication antenna (13) penetrates the control box (10) and extends outward.

7. The high-safety low-voltage distribution cabinet according to claim 1, characterized in that: A plurality of cooling fans (14) are provided on the cabinet (1), and shielding plates (15) corresponding to the cooling fans (14) and a driving mechanism (16) for driving the shielding plates (15) to move are provided in the cabinet (1).

8. The high-safety low-voltage distribution cabinet according to claim 7, characterized in that: The driving mechanism (16) includes a slide groove (17) symmetrically arranged on both sides of the cooling fan (14), a driving motor is arranged in the slide groove (17), the driving motor is electrically connected to the fire protection controller (5), and a driving screw (18) is arranged at the output end of the driving motor. The driving screw (18) is externally screwed with a driving block (19), and the driving block (19) is fixedly connected to the shielding plate (15).

9. The high-safety low-voltage distribution cabinet according to claim 8, characterized in that: The driving screw (18) is provided with threads at both ends in opposite directions, and the two threads are symmetrically distributed with respect to the center line of the driving screw (18), and the driving blocks (19) are respectively located on the two threads.

10. The high-safety low-voltage distribution cabinet according to claim 1, characterized in that: A ventilation opening (20) is provided on the side wall of the cabinet (1), and a corresponding electric shutter (21) is provided in the ventilation opening (20). The electric shutter (21) is electrically connected to the fire protection controller (5).

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