Power distribution cabinet with early warning protection function

Abstract

The invention discloses a power distribution cabinet with an early warning protection function, the power distribution cabinet comprises a cabinet door, a cabinet body, an electric appliance element, a cooling system, an early warning system, damping casters and a control panel, the cabinet body is provided with a bottom opening and side hinges, the cabinet door is hinged to the cabinet body, the electric appliance element, the early warning system and the damping casters are fixedly connected with the cabinet body, the cooling system comprises a bottom plate, and the bottom plate is fixedly connected with the cabinet body. The bottom plate is fixedly connected with the bottom opening, the control panel is in sliding connection with the side hinge, and the electric appliance element and the early warning system are both connected with the control panel through electric signals; the invention relates to the technical field of power distribution cabinets, and can effectively perform circulating cooling on internal electric appliances, effectively remove dust, prevent dust from entering electric appliance elements, perform real-time monitoring and early warning for protection, and significantly reduce the risks of electrical fire and equipment damage.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinets, and specifically to a distribution cabinet with early warning and protection functions. Background Art

[0002] As a core device in the power system, the distribution cabinet undertakes important functions such as power distribution, control, protection, and monitoring, and is widely used in multiple fields such as industry, commerce, construction, and infrastructure. Reasonable design and effective maintenance are of crucial significance for ensuring the reliability and safety of power supply. With the continuous progress of technology, the early warning and protection concept of modern distribution cabinets has gradually shifted from the traditional passive power-off mode to active prevention. With the help of intelligent sensing and Internet of Things technologies, the distribution cabinet can achieve full-closed-loop management from monitoring, early warning to protection, significantly improving the safety and stability of the power system. As the terminal power distribution device of the power system, the early warning and protection function of the distribution cabinet is a key design element to ensure electrical safety and prevent electrical accidents. In special environments such as industrial plants, the distribution cabinet needs to strengthen the explosion-proof design to effectively protect electrical equipment in a flammable environment. At the same time, factors such as anti-vibration and dust protection need to be fully considered, and the current exceeding the threshold of the electrical appliance is monitored in real time. Summary of the Invention

[0003] The purpose of the present invention is to provide a distribution cabinet with early warning and protection functions to solve the problems in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A distribution cabinet with early warning and protection functions includes a cabinet door, a cabinet body, electrical components, a cooling system, an early warning system, shock-absorbing wheel feet, and a control panel. The cabinet body is provided with a bottom opening and side hinges. The cabinet door is hinged to the cabinet body. The electrical components, the early warning system, and the shock-absorbing wheel feet are all fixedly connected to the cabinet body. The cooling system includes a bottom plate, and the bottom plate is fixedly connected to the bottom opening. The control panel is slidably connected to the side hinge. The electrical components and the early warning system are both electrically connected to the control panel through electrical signals.

[0005] The present invention is an intelligent distribution cabinet for industrial plants, and its main function is the terminal power distribution protection equipment of the power system. It uses the cabinet body to strengthen the explosion-proof design to protect the electrical components assembled inside in a flammable environment. At the same time, shock-absorbing wheel feet are assembled at the bottom of the cabinet body, which can effectively resist vibration and avoid damage to the internal electrical components caused by vibration. While circulating ventilation and cooling the inside of the cabinet body through the cooling system, it screens out the dust in the environment to avoid dust entering the electrical components and causing short circuits. Through the electrical signal connection between the early warning system and the control panel, it intelligently monitors the current, voltage, arc, and temperature inside the cabinet body, and actively feeds back alarms through early warning, significantly reducing the risks of fire and equipment damage.

[0006] Further, the cooling system further includes a dust removal mechanism and a fan mechanism. A through groove is provided on the bottom plate. The dust removal mechanism includes a box body, and the box body is fixedly connected to the through groove. An air inlet grille is provided on the cabinet door, and the air inlet grille is provided at the bottom of the cabinet door. An air outlet grille is also provided on the cabinet body, and the air outlet grille is provided at the top of the side wall of the cabinet body. There are several groups of fan mechanisms, air inlet grilles, and air outlet grilles, and the fan mechanisms are fixedly connected to the air inlet grilles and the air outlet grilles respectively.

[0007] The fan mechanism provided at the bottom of the cabinet door draws external air into the bottom of the cabinet body through the air inlet grille. The fan mechanism provided at the top of the side wall of the cabinet body draws the air in the cabinet body out to the outside through the air outlet grille. The air entering the cabinet body passes through the dust removal mechanism to complete dust screening, and flows from bottom to top inside the cabinet body to complete air circulation for dust prevention and cooling of electrical components.

[0008] Further, the dust removal mechanism further includes a corrugated plate and a wind driving mechanism. A round opening, an arc opening, a circular ring shell, and a hopper are provided on the box body. The corrugated plate is fixedly connected to the box body. The hopper is provided at the bottom of the box body. The round opening, the arc opening, and the circular ring shell are all provided at the top of the box body. The wind driving mechanism includes a first ring frame, and the first ring frame is fixedly connected to the round opening.

[0009] The fan mechanism provided at the bottom of the cabinet door draws external air into the bottom of the cabinet body through the air inlet grille. The air carrying dust horizontally impacts on the corrugated plate under the blowing action of the fan mechanism. Part of the dust in the air impacts on the corrugated plate, loses kinetic energy, and falls into the hopper, and is screened out of the box body. The other part of the dust-containing air rises and enters the filter mechanism in the round opening for secondary dust removal. Part of the gas that leaks through the screen is blocked by the circular ring shell and flows back to the box body through the arc opening and rises again for dust removal.

[0010] Further, the dust removal mechanism further includes an assembly frame, a filter mechanism, and a return mechanism. The filter mechanism includes a second ring frame, and the return mechanism includes a cylindrical shell. The assembly frame is fixedly connected to the box body, the second ring frame, and the cylindrical shell.

[0011] Part of the dust-containing air rises and enters the filter mechanism in the round opening for secondary dust removal. The filter mechanism and the return mechanism are fixed to the box body through the assembly frame. The rising dust drives the filter mechanism to deflect through the wind driving mechanism, and the filter mechanism is reset under the action of the return mechanism, achieving the effect of pulsed vibration of the filter mechanism, which can effectively remove the dust adsorbed on the filter mechanism and keep the dust adsorption effect of the filter mechanism in a good state.

[0012] Further, the wind driving mechanism further includes an inner ring body, which is rotatably connected to both the first ring frame and the second ring frame. The inner ring body is provided with fan blades and an inner ring gear pair. The fan blades are arranged on the outer side of the inner ring body away from the center of the circle, and the inner ring gear pair is arranged on the inner side of the inner ring body close to the center of the circle. The filter mechanism further includes a double gear rod. There are several groups of fan blades and double gear rods, and several groups of fan blades and double gear rods are evenly distributed along the circumference of the inner ring body. The return mechanism further includes a gear pair ring, and the double gear rod is in meshing engagement with both the inner ring gear pair and the gear pair ring on the tooth surface.

[0013] Part of the dust-containing air rises through the space between the first ring frame and the second ring frame. The upward airflow passes through the fan blades arranged on the outer side of the inner ring body, driving the inner ring body to rotate between the first ring frame and the second ring frame. Through the meshing engagement on the tooth surface between the inner ring gear pair arranged on the inner side and the double gear rod, the rotation of the inner ring body transmits torque to the double gear rod. Through the meshing engagement on the tooth surface between the double gear rod and the gear pair ring, the torque of the double gear rod is transmitted to the gear pair ring. The gas driving the inner ring body to rotate is blocked by the circular ring shell and flows back into the box through the arc-shaped opening to rise and remove dust again.

[0014] Further, the filter mechanism further includes a hinge seat and a sector filter screen. The second ring frame is provided with a first through hole. There are several groups of hinge seats, sector filter screens, and first through holes, and several groups of hinge seats, sector filter screens, and first through holes are evenly distributed along the circumference of the second ring frame. The cylindrical shell is provided with a second through hole. The double gear rod is rotatably connected to both the first through hole and the second through hole. The hinge seat is fixedly connected to the double gear rod, and the sector filter screen is hinged to the hinge seat.

[0015] The rising dust-containing airflow is filtered and blocked by several groups of sector filter screens evenly distributed along the circumference of the second ring frame. While the sector filter screens filter dust, through the meshing engagement on the tooth surface between the inner ring gear pair arranged on the inner side and the double gear rod, the rotation of the inner ring body transmits torque to the double gear rod. Several groups of double gear rods evenly distributed in a circle rotate in the first through hole, and at the same time drive the sector filter screens hinged through the hinge seats to deflect. The torque of the double gear rod is transmitted to the return mechanism, and after the return mechanism is compressed, the double gear rod is reset. The sector filter screens deflect first and then reset, and so on, performing a pulsed vibration, shaking off the dust filtered and adsorbed by the sector filter screens, and the dust falls into the hopper and is discharged.

[0016] Further, the return mechanism further includes a compression spring. The gear pair ring is rotatably connected to the cylindrical shell. The cylindrical shell is provided with a limit block, and the gear pair ring is provided with a convex block. The compression spring is fixedly connected to both the limit block and the convex block.

[0017] Through the meshing engagement on the tooth surface between the double gear rod and the gear pair ring, the self-rotation torque of the double gear rod is transmitted to the gear pair ring. The gear pair ring rotates in the cylindrical shell. The convex block on the gear pair ring squeezes the compression spring against the limit block on the cylindrical shell. Under the action of the compression spring's recovery deformation, the gear pair ring rotates in the reverse direction and transmits the reverse torque to the double gear rod, causing the double gear rod to return to its original position and reset.

[0018] Furthermore, the early warning system includes a fuse, a temperature sensor, a surge protector, an arc breaker, an alarm lamp, and a current sensor. The fuse, temperature sensor, surge protector, arc breaker, alarm lamp, and current sensor are all fixedly connected to the cabinet body. The temperature sensor, alarm lamp, and current sensor are all electrically connected to the control panel by electrical signals.

[0019] The early warning system monitors the circuit current in real time through the current sensor. When the current exceeds the set threshold, an electrical signal is transmitted through the control panel, and the alarm lamp triggers an audible and visual alarm to indicate the risk of load overload. The temperature sensor monitors the temperature of the terminal block and the busbar in real time. When there is an abnormal temperature rise, the alarm lamp alarms to prevent overheating and fire. The fuse cuts off the circuit in milliseconds at the moment of short circuit to prevent the line from being burned or causing a fire. The surge protector monitors sudden voltage rises or drops, absorbs overvoltage, and cuts off the power supply to avoid equipment damage. The arc breaker identifies dangerous arcs and quickly cuts off the power to reduce the fire risk.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention designs a dust removal mechanism to cool the electrical components through air circulation. The air carrying dust is blown by the fan to horizontally impact on the corrugated plate. Part of the dust impacts on the corrugated plate and loses kinetic energy and falls, and is screened out by the hopper. Part of the air containing dust rises. The rising air flow drives the inner ring body to rotate self - clockwise through the fan blades, transmits torque to the double - gear rod and the gear - pair ring. The gas driving the inner ring body to rotate is blocked by the circular ring shell and flows back into the box body through the arc - shaped opening to rise again for dust removal. The rising air flow containing dust is filtered and blocked by the sector - shaped filter screen. While the sector - shaped filter screen filters dust, the double - gear rods rotate self - clockwise in the first through - holes, and at the same time drive the sector - shaped filter screen articulated and assembled through the hinge seats to deflect. The gear - pair ring rotates in the cylindrical shell and compresses the compression spring. Under the action of the recovery deformation of the compression spring, the gear - pair ring rotates in the reverse direction and transmits reverse torque to the double - gear rod, making the double - gear rod return to its original position. The sector - shaped filter screen deflects first and then resets. In this way, it reciprocates for pulse - type vibration to shake off the dust filtered and adsorbed by the sector - shaped filter screen. The dust falls into the hopper and is discharged, greatly improving the dust screening efficiency; The present invention designs an early warning system. The circuit current is monitored in real time through the current sensor. When the current exceeds the set threshold, an electrical signal is transmitted through the control panel, and the alarm lamp triggers an audible and visual alarm to indicate the risk of load overload. The temperature sensor monitors the temperature of the terminal block and the busbar in real time. When there is an abnormal temperature rise, the alarm lamp alarms to prevent overheating and fire. The fuse cuts off the circuit in milliseconds at the moment of short circuit to prevent the line from being burned or causing a fire. The surge protector monitors sudden voltage rises or drops, absorbs overvoltage, and cuts off the power supply to avoid equipment damage. The arc breaker identifies dangerous arcs and quickly cuts off the power to reduce the fire risk; The present invention can effectively cool the internal electrical appliances in a cycle, effectively remove dust at the same time, prevent dust from entering the electrical components, and conduct real - time monitoring and early warning for protection, significantly reducing the risks of electrical fires and equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the cooling system structure of the present invention; Figure 3 Schematic diagram of the dust removal mechanism structure of the present invention; Figure 4 Partial sectional view of the dust removal mechanism of the present invention; Figure 5 Schematic diagram of the wind driving mechanism structure of the present invention; Figure 6 Schematic diagram of the filter screen mechanism structure of the present invention; Figure 7 is Figure 5 Partial enlarged view B of; Figure 8 is Figure 1 Partial enlarged view A of.

[0022] In the figure: 1, cabinet door; 11, air inlet grille; 2, cabinet body; 21, air outlet grille; 22, bottom opening; 23, side hinge; 3, electrical components; 4, cooling system; 41, bottom plate; 411, through groove; 42, dust removal mechanism; 43, fan; 44, box body; 441, round opening; 442, arc opening; 443, circular ring shell; 444, hopper; 45, corrugated plate; 46, mounting frame; 47, wind driving mechanism; 471, first ring frame; 472, inner ring body; 4721, fan blade; 4722, inner ring gear pair; 48, filter screen mechanism; 481, second ring frame; 4811, first through hole; 482, double gear rod; 483, hinge seat; 484, sector filter screen; 49, return mechanism; 491, cylindrical shell; 4911, second through hole; 4912, limiting block; 492, gear ring; 4921, convex block; 493, compression spring; 5, warning system; 51, fuse; 52, temperature sensor; 53, surge protector; 54, arc breaker; 55, alarm lamp; 56, current sensor; 6, shock-absorbing wheel feet; 7, control panel. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Such as Figure 1 、 Figure 2As shown in the figure, the technical solution of the power distribution cabinet with early warning and protection functions provided by the present invention includes a cabinet door 1, a cabinet body 2, electrical components 3, a cooling system 4, an early warning system 5, shock-absorbing wheel feet 6, and a control panel 7. The cabinet body 2 is provided with a bottom opening 22 and side hinges 23. The cabinet door 1 is hinged to the cabinet body 2. The electrical components 3, the early warning system 5, and the shock-absorbing wheel feet 6 are all fixedly connected to the cabinet body 2. The cooling system 4 includes a bottom plate 41, and the bottom plate 41 is fixedly connected to the bottom opening 22. The control panel 7 is slidably connected to the side hinge 23. The electrical components 3 and the early warning system 5 are both electrically connected to the control panel 7 through electrical signals.

[0025] The present invention is an intelligent power distribution cabinet for industrial plants, and its main function is to be a terminal power distribution protection device for the power system. The cabinet body 2 is strengthened with an explosion-proof design to protect the electrical components 3 assembled inside in a flammable environment. At the same time, shock-absorbing wheel feet 6 are assembled at the bottom of the cabinet body 2, which can effectively resist vibration and prevent the internal electrical components 3 from being damaged due to vibration. While the cooling system 4 circulates and ventilates to cool the inside of the cabinet body 2, it screens out the dust in the environment to prevent dust from entering the electrical components 3 and causing a circuit break. Through the direct electrical signal connection between the early warning system 5 and the control panel 7, the current, voltage, arc, and temperature inside the cabinet body 2 are intelligently monitored, and an alarm is actively fed back through early warning, significantly reducing the risks of fire and equipment damage.

[0026] As Figure 1 、 Figure 2 As shown in the figure, the cooling system 4 further includes a dust removal mechanism 42 and a fan unit 43. The bottom plate 41 is provided with a through groove 411. The dust removal mechanism 42 includes a box body 44, and the box body 44 is fixedly connected to the through groove 411. The cabinet door 1 is provided with an air inlet grille 11, and the air inlet grille 11 is arranged at the bottom of the cabinet door 1. The cabinet body 2 is further provided with an air outlet grille 21, and the air outlet grille 21 is arranged at the top of the side wall of the cabinet body 2. The fan unit 43, the air inlet grille 11, and the air outlet grille 21 are all provided with several groups, and the fan unit 43 is fixedly connected to both the air inlet grille 11 and the air outlet grille 21.

[0027] The fan unit 43 arranged at the bottom of the cabinet door 1 draws external air into the bottom of the cabinet body 2 through the air inlet grille 11. The fan unit 43 arranged at the top of the side wall of the cabinet body 2 draws the air in the cabinet body 2 out to the outside through the air outlet grille 21. The air entering the cabinet body 2 completes the dust screening through the dust removal mechanism 42 and flows from bottom to top inside the cabinet body 2 to complete the air circulation for dust prevention and cooling of the electrical components 3.

[0028] As Figure 3 、 Figure 4As shown in the figure, the dust removal mechanism 42 further includes a corrugated plate 45 and a wind drive mechanism 47. The box body 44 is provided with a circular opening 441, an arc-shaped opening 442, a circular ring shell 443 and a hopper 444. The corrugated plate 45 is fixedly connected to the box body 44. The hopper 444 is arranged at the bottom of the box body 44. The circular opening 441, the arc-shaped opening 442 and the circular ring shell 443 are all arranged at the top of the box body 44. The wind drive mechanism 47 includes a first ring frame 471, and the first ring frame 471 is fixedly connected to the circular opening 441.

[0029] The fan 43 arranged at the bottom of the cabinet door 1 draws in the outside air through the air inlet grille 11 to the bottom of the cabinet body 2. The air carrying dust horizontally impacts on the corrugated plate 45 under the blowing action of the fan 43. Part of the dust in the air impacts on the corrugated plate 45, loses kinetic energy and falls into the hopper 444, and is screened out of the box body 44. The other part of the dust-containing air rises and enters the filter mechanism 48 in the circular opening 441 for secondary dust removal. Part of the gas that leaks through the screen is blocked by the circular ring shell 443 and flows back to the box body 44 through the arc-shaped opening 442 and rises again for dust removal.

[0030] As Figure 5 、 Figure 6 shown in the figure, the dust removal mechanism 42 further includes an assembly frame 46, a filter mechanism 48 and a return mechanism 49. The filter mechanism 48 includes a second ring frame 481. The return mechanism 49 includes a cylindrical shell 491. The assembly frame 46 is fixedly connected to the box body 44, the second ring frame 481 and the cylindrical shell 491.

[0031] Part of the dust-containing air rises and enters the filter mechanism 48 in the circular opening 441 for secondary dust removal. The filter mechanism 48 and the return mechanism 49 are fixed on the box body 44 through the assembly frame 46. The rising dust drives the filter mechanism 48 to deflect through the wind drive mechanism 47, and the filter mechanism 48 is reset under the action of the return mechanism 49, achieving the effect of pulsed vibration of the filter mechanism 48, which can effectively remove the dust adsorbed on the filter mechanism 48 and keep the dust adsorption effect of the filter mechanism 48 in a good state.

[0032] As Figure 5 、 Figure 6 shown in the figure, the wind drive mechanism 47 further includes an inner ring body 472. The inner ring body 472 is rotatably connected to the first ring frame 471 and the second ring frame 481. The inner ring body 472 is provided with fan blades 4721 and an inner ring gear pair 4722. The fan blades 4721 are arranged on the outer side of the inner ring body 472 away from the center of the circle, and the inner ring gear pair 4722 is arranged on the inner side of the inner ring body 472 close to the center of the circle. The filter mechanism 48 further includes a double gear rod 482. There are several groups of fan blades 4721 and double gear rods 482. The several groups of fan blades 4721 and double gear rods 482 are evenly distributed along the circumference of the inner ring body 472. The return mechanism 49 further includes a gear pair ring 492. The double gear rod 482 is in meshing engagement with the inner ring gear pair 4722 and the gear pair ring 492 on the tooth surface.

[0033] A portion of the dust-containing air rises between the first ring frame 471 and the second ring frame 481. The upward airflow passes through the fan blades 4721 arranged outside the inner ring body 472, driving the inner ring body 472 to rotate between the first ring frame 471 and the second ring frame 481. Through the meshing of the tooth surfaces between the inner ring gear pair 4722 arranged inside and the double gear rod 482, the inner ring body 472 rotates self to transmit torque to the double gear rod 482. Through the meshing of the tooth surfaces between the double gear rod 482 and the gear pair ring 492, the torque of the double gear rod 482 is transmitted to the gear pair ring 492. The gas driving the inner ring body 472 to rotate self is blocked by the circular ring shell 443 and flows back to the box body 44 through the arc-shaped opening 442 to rise again for dust removal.

[0034] As Figure 5 , Figure 6 shown, the filter screen mechanism 48 further includes a hinge seat 483 and a sector filter screen 484. The second ring frame 481 is provided with a first through hole 4811. There are several groups of hinge seats 483, sector filter screens 484, and first through holes 4811. The several groups of hinge seats 483, sector filter screens 484, and first through holes 4811 are evenly distributed along the circumference of the second ring frame 481. The cylinder shell 491 is provided with a second through hole 4911. The double gear rod 482 is rotatably connected to both the first through hole 4811 and the second through hole 4911. The hinge seat 483 is fixedly connected to the double gear rod 482, and the sector filter screen 484 is hinged to the hinge seat 483.

[0035] The rising dust-containing airflow is filtered and blocked by several groups of sector filter screens 484 evenly distributed along the circumference of the second ring frame 481. While the sector filter screen 484 filters dust, through the meshing of the tooth surfaces between the inner ring gear pair 4722 arranged inside and the double gear rod 482, the inner ring body 472 rotates self to transmit torque to the double gear rod 482. Several groups of circumferentially evenly distributed double gear rods 482 rotate self in the first through hole 4811, and at the same time drive the sector filter screens 484 hinged and assembled through the hinge seats 483 to deflect. The torque of the double gear rod 482 is transmitted to the return mechanism 49. After being compressed, the return mechanism 49 resets the double gear rod 482. The sector filter screen 484 deflects first and then resets. In this way, it reciprocates for pulsed vibration, shaking off the dust filtered and adsorbed by the sector filter screen 484, and the dust falls into the hopper 444 and is discharged.

[0036] As Figure 7 shown, the return mechanism 49 further includes a compression spring 493. The gear pair ring 492 is rotatably connected to the cylinder shell 491. The cylinder shell 491 is provided with a limit block 4912, and the gear pair ring 492 is provided with a convex block 4921. The compression spring 493 is fixedly connected to both the limit block 4912 and the convex block 4921.

[0037] The self-rotation torque of the double gear rod 482 is transmitted to the gear pair ring 492 through the tooth surface engagement between the double gear rod 482 and the gear pair ring 492. The gear pair ring 492 rotates within the cylinder shell 491. The bump 4921 on the gear pair ring 492 presses against the limit block 4912 on the cylinder shell 491 to compress the compression spring 493. Under the action of the recovery deformation of the compression spring 493, the gear pair ring 492 rotates in the reverse direction to transmit the reverse torque to the double gear rod 482, causing the double gear rod 482 to return to its original position and reset.

[0038] As Figure 1 , Figure 8 shown, the early warning system 5 includes a fuse 51, a temperature sensor 52, a surge protector 53, an arc breaker 54, an alarm lamp 55, and a current sensor 56. The fuse 51, the temperature sensor 52, the surge protector 53, the arc breaker 54, the alarm lamp 55, and the current sensor 56 are all fixedly connected to the cabinet body 2. The temperature sensor 52, the alarm lamp 55, and the current sensor 56 are all electrically connected to the control panel 7.

[0039] The early warning system 5 monitors the circuit current in real time through the current sensor 56. When the current exceeds the set threshold, an electrical signal is transmitted through the control panel 7, and the alarm lamp 55 triggers an audible and visual alarm to indicate the risk of load overload. The temperature sensor 52 monitors the temperature of the terminal block and the busbar in real time. When there is an abnormal temperature rise, the alarm lamp 55 alarms to prevent overheating and fire. The fuse 51 cuts off the circuit in milliseconds at the moment of short circuit to prevent the line from being burned or causing a fire. The surge protector 53 monitors sudden voltage rises or drops, absorbs overvoltage, and cuts off the power supply to avoid equipment damage. The arc breaker 54 identifies dangerous arcs and quickly cuts off the power to reduce the fire risk.

[0040] Working principle of the present invention: The present invention is an intelligent power distribution cabinet for industrial plants. The cabinet body 2 is used to strengthen the explosion-proof design to protect the electrical components 3 assembled inside in a flammable environment. The shock-absorbing wheel feet 6 can effectively resist vibration and prevent damage to the internal electrical components 3. Air enters the bottom of the cabinet body 2 and the dust is screened through the dust removal mechanism 42, and then flows upward inside the cabinet body 2. The air circulation cools the electrical components 3. The air carrying dust is blown by the fan 43 and horizontally impacts on the corrugated plate 45. Part of the dust loses kinetic energy and falls after impacting on the corrugated plate 45, and is screened out by the hopper 444. Part of the dust-containing air rises. The rising air flow drives the inner ring body 472 to rotate through the fan blades 4721, transmits torque to the double gear rod 482 and the gear pair ring 492. The gas driving the inner ring body 472 to rotate is blocked by the circular ring shell 443 and flows back to the box body 44 through the arc port 442 and rises again for dust removal. The rising dust-containing air flow is filtered and blocked by the sector filter screen 484. While the sector filter screen 484 filters dust, the double gear rods 482 rotate in the first through holes 4811, and at the same time drive the sector filter screen 484 hinged and assembled through the hinge seats 483 to deflect. The gear pair ring 492 rotates in the cylinder shell 491. The convex block 4921 on the gear pair ring 492 squeezes the compression spring 493 with the limit block 4912 on the cylinder shell 491. Under the action of the recovery deformation of the compression spring 493, the gear pair ring 492 rotates in the reverse direction and transmits reverse torque to the double gear rod 482, so that the double gear rod 482 returns to the original position and resets. The sector filter screen 484 deflects first and then resets. In this way, a pulsed vibration is carried out repeatedly, and the dust filtered and adsorbed by the sector filter screen 484 is shaken off. The dust falls into the hopper 444 and is discharged, greatly improving the dust screening efficiency and preventing dust from entering the electrical components 3 and causing a circuit break. Through the electrical signal connection between the warning system 5 and the control panel 7, the current, voltage, arc and temperature inside the cabinet body 2 are intelligently monitored, and an alarm is actively fed back through the warning, significantly reducing the risk of fire and equipment damage.

[0041] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A power distribution cabinet with early warning protection function, characterized in that: The power distribution cabinet comprises a cabinet door (1), a cabinet body (2), an electrical component (3), a cooling system (4), an early warning system (5), shock-absorbing casters (6) and a control panel (7); the cabinet body (2) is provided with a bottom opening (22) and a side hinge (23); the cabinet door (1) is hinged to the cabinet body (2); the electrical component (3), the early warning system (5) and the shock-absorbing casters (6) are all fixedly connected to the cabinet body (2); the cooling system (4) comprises a bottom plate (41); the bottom plate (41) is fixedly connected to the bottom opening (22); the control panel (7) is slidably connected to the side hinge (23); and the electrical component (3) and the early warning system (5) are all connected to the control panel (7) via electrical signals.

2. A power distribution cabinet with early warning protection function according to claim 1, characterized in that: The cooling system (4) further comprises a dust removal mechanism (42) and a fan (43); a through slot (411) is provided on the bottom plate (41); the dust removal mechanism (42) comprises a box (44); the box (44) is fixedly connected to the through slot (411); an air inlet grille (11) is provided on the cabinet door (1); the air inlet grille (11) is arranged at the bottom of the cabinet door (1); an air outlet grille (21) is further provided on the cabinet (2); the air outlet grille (21) is arranged at the top of the side wall of the cabinet (2); the fan (43), the air inlet grille (11), and the air outlet grille (21) are all provided in a plurality of groups; the fan (43) is fixedly connected to the air inlet grille (11) and the air outlet grille (21).

3. A power distribution cabinet with early warning protection function according to claim 2, characterized in that: The dust removal mechanism (42) further comprises a wave plate (45) and a wind drive mechanism (47); the box body (44) is provided with a round opening (441), an arc opening (442), a circular ring shell (443) and a hopper (444); the wave plate (45) is fixedly connected to the box body (44); the hopper (444) is arranged at the bottom of the box body (44); the round opening (441), the arc opening (442) and the circular ring shell (443) are all arranged at the top of the box body (44); and the wind drive mechanism (47) comprises a first ring frame (471); the first ring frame (471) is fixedly connected to the round opening (441).

4. A power distribution cabinet with early warning protection function according to claim 3, characterized in that: The dust removal mechanism (42) further comprises an assembly frame (46), a filter mechanism (48) and a return mechanism (49); the filter mechanism (48) comprises a second ring frame (481); the return mechanism (49) comprises a cylinder shell (491); and the assembly frame (46) is fixedly connected to the box body (44), the second ring frame (481) and the cylinder shell (491).

5. A power distribution cabinet with early warning protection function according to claim 4, characterized in that: The wind drive mechanism (47) further comprises an inner ring body (472), wherein the inner ring body (472) is rotatably connected to the first ring frame (471) and the second ring frame (481), and the inner ring body (472) is provided with a fan blade (4721) and an inner ring gear pair (4722), wherein the fan blade (4721) is arranged on the inner ring body (472) away from the outer side of the circle center, and the inner ring gear pair (4722) is arranged on the inner ring body (472) close to the inner side of the circle center. On the side, the filter mechanism (48) further includes a double gear rod (482), the fan blades (4721) and the double gear rod (482) are each provided with a plurality of groups, the plurality of groups of fan blades (4721) and the double gear rod (482) are evenly distributed along the circumference of the inner ring body (472), the return mechanism (49) further includes a tooth pair ring (492), the double gear rod (482) and the inner ring tooth pair (4722) and the tooth pair ring (492) all have tooth surfaces meshing.

6. A power distribution cabinet with early warning protection function according to claim 5, characterized in that: The filter mechanism (48) further comprises an articulated seat (483) and a sector-shaped filter (484); the second ring frame (481) is provided with a first through hole (4811); the articulated seat (483), the sector-shaped filter (484), and the first through hole (4811) are provided in a plurality of groups; the plurality of groups of the articulated seat (483), the sector-shaped filter (484), and the first through hole (4811) are evenly distributed along the circumference of the second ring frame (481); the cylinder shell (491) is provided with a second through hole (4911); the double gear rod (482) is rotatably connected to the first through hole (4811) and the second through hole (4911); the articulated seat (483) is fixedly connected to the double gear rod (482); and the sector-shaped filter (484) is hinged to the articulated seat (483).

7. A power distribution cabinet with early warning protection function according to claim 5, characterized in that: The return mechanism (49) further comprises a compression spring (493); the tooth pair ring (492) is rotatably connected to the cylinder shell (491); a limit block (4912) is provided on the cylinder shell (491); a protrusion (4921) is provided on the tooth pair ring (492); and the compression spring (493) is fixedly connected to the limit block (4912) and the protrusion (4921).

8. The power distribution cabinet with early warning protection function according to claim 1 is characterized in that: The early warning system (5) comprises a fuse (51), a temperature sensor (52), a surge protector (53), an arc circuit breaker (54), an alarm light (55), and a current sensor (56); the fuse (51), the temperature sensor (52), the surge protector (53), the arc circuit breaker (54), the alarm light (55), and the current sensor (56) are all fixedly connected to the cabinet (2); and the temperature sensor (52), the alarm light (55), and the current sensor (56) are all connected to the control panel (7) via electrical signals.

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