Intelligent power distribution cabinet

Abstract

The invention discloses an intelligent power distribution cabinet, particularly relates to the technical field of power distribution cabinets, and aims to solve the problems that dust is easy to accumulate in an electric box in the prior art, and if the dust is not cleaned in time, the dust is accumulated on the surface of an electric element in the electric box, so that the electric element cannot dissipate heat, and the electric element cannot dissipate heat. The intelligent power distribution cabinet comprises a box body, a reciprocating screw rod is rotatably installed between the top wall and the bottom wall of one side of the box body, and a limiting sliding rod is fixedly installed between the top wall and the bottom wall of the other side of the box body. An air pipe can be driven by a torsion spring to swing by a certain angle in a reciprocating manner, so that the air pipe drives a nozzle to swing by a certain angle, multi-angle air blowing can be performed on an electrical element, dust can be blown away, and the situation that the electrical element cannot dissipate heat due to the fact that the dust is accumulated on the surface of the electrical element in the electrical box is avoided. And electrical elements are damaged by heating.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinets, and particularly to an intelligent distribution cabinet. Background Art

[0002] A distribution box is an assembly of switchgear, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements, constituting a low-voltage power distribution device; a distribution box is a device for distributing and controlling electric energy. It is usually installed in buildings or industrial facilities to distribute the power supply to different circuits and devices. Distribution boxes are usually made of metal or plastic and have multiple switches, circuit breakers, fuses, and other electrical components. They are connected to the power source through cables or wires and guide the electric energy to different circuits through the internal power distribution switches.

[0003] An existing outdoor distribution box (Publication No.: CN116937349A) has at least the following drawbacks:

[0004] When the above patent is in use, the inside of the electric box is cooled by a ventilation and heat dissipation fan. Since dust is likely to accumulate inside the electric box, if the dust is not cleaned in time, the dust will accumulate on the surfaces of the electrical components inside the electric box, which will prevent the electrical components from dissipating heat and cause the electrical components to be damaged by heat. Although there are also distribution cabinets in the prior art that can actively clean the dust, however, due to the complex structure of the electrical components in the existing distribution cabinets and various dead corners, the cleaning effect of the dust in the electrical components in the prior art is not good. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that dust is likely to accumulate inside the electric box. If the dust is not cleaned in time, the dust will accumulate on the surfaces of the electrical components inside the electric box, which will prevent the electrical components from dissipating heat and cause the electrical components to be damaged by heat, and to propose an intelligent distribution cabinet.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solution:

[0007] An intelligent distribution cabinet includes a box body. A driving motor is fixedly installed on the lower surface of the box body. A reciprocating lead screw is rotatably installed between the top wall and the bottom wall on one side of the box body. A limiting slide bar is fixedly installed between the top wall and the bottom wall on the other side of the box body. Slide seats are slidably installed on the outer surfaces of both the reciprocating lead screw and the limiting slide bar. One of the slide seats is threadedly connected to the reciprocating lead screw. An air pipe is rotatably installed between the two slide seats. A plurality of nozzles are fixedly installed on the outer surface of the air pipe close to the back of the box body. A torsion spring is sleeved on the outer surface of the air pipe close to one end of the reciprocating lead screw. A dial block is fixedly installed on the outer surface of the air pipe close to one end of the limiting slide bar. A rack is fixedly installed on the outer surface of the box body close to the dial block. The dial block abuts against the outer surface of the rack;

[0008] It also includes a swing angle information module, a current information module, and a central processing unit;

[0009] Swing angle information module: used to collect the actual swing angle of the air pipe;

[0010] Current information module: used to collect the actual output current value of the drive motor;

[0011] Central processing unit: analyzes the output signal of the swing angle information module to generate a swing angle deviation coefficient, analyzes the output signal of the current information module to generate a current coefficient, processes the swing angle deviation coefficient and the current coefficient to generate an evaluation coefficient, compares the evaluation coefficient with a pre-designed evaluation coefficient reference threshold, and issues an alarm according to the comparison result.

[0012] The above technical solution can blow air on the electrical components at multiple angles to ensure that the dust can be blown clean, avoiding the problem that dust accumulates on the surface of the electrical components inside the electrical box, which will cause the electrical components to be unable to dissipate heat and lead to heat damage of the electrical components.

[0013] As a further solution of the present invention, an air pump is fixedly installed on the top wall of the box body. The air pump is connected to the air pipe through a hose. A drive motor is fixedly installed on the lower surface of the box body. The output end of the drive motor penetrates the outer surface of the box body and is fixedly installed at the rotation center of the reciprocating lead screw.

[0014] The above technical solution drives the block to move up and down through the air pipe. When the block contacts the rack, it can drive the air pipe to swing back and forth at a certain angle through the torsion spring, so that the air pipe drives the nozzle to swing at a certain angle.

[0015] As a further solution of the present invention, two slide rails are symmetrically and fixedly installed on the back surface of the box body. Chutes are opened on the outer surfaces of the two slide rails away from the box body. Two sliders are symmetrically and slidably installed on the inner walls of the chutes. A bidirectional lead screw is rotatably installed between the inner walls at the opposite ends of the chute. The two ends of the bidirectional lead screw respectively penetrate the outer surfaces of the two sliders and are threadedly connected to them. A clamping plate is fixedly installed on the outer surface of the slider away from the box body. A fixing strip is arranged between the two clamping plates. A V-shaped opening is opened on the outer surface of the clamping plate close to the fixing strip. A clamping strip matching the V-shaped opening is fixedly installed on the outer surface of the fixing strip close to the clamping plate.

[0016] The above technical solution, the V-shaped opening and the clamping strip on the fixing strip and the clamping plate are used for quickly installing the box body, ensuring the convenience of using the box body.

[0017] As a further solution of the present invention, pulleys are rotatably installed at the centers of the tops of the two slide rails. A belt is sleeved on the surfaces of the two pulleys. Two connecting shafts are fixedly installed at the centers of the bottoms of the two pulleys. The ends of the two connecting shafts pass through the corresponding slide rails and are respectively fixedly installed at the centers of the tops of the two bidirectional lead screws. The surfaces of the two connecting shafts are respectively rotatably arranged inside the inner walls of the corresponding slide rails. A hand wheel is rotatably installed at the bottom of one of the slide rails. A shaft rod is fixedly installed at the center of the top of the hand wheel. The top of the shaft rod passes through the slide rail and is fixedly installed at the center of the end of the corresponding bidirectional lead screw. The surface of the shaft rod is rotatably arranged inside the inner wall of the corresponding slide rail. A T-shaped groove is formed at the bottom of the hand wheel. A handle is rotatably installed at the short side of the T-shaped groove through a torsion spring. The surface of the handle is slidably arranged inside the T-shaped groove.

[0018] The above technical solution is used to synchronously connect the two bidirectional lead screws through the belt and the pulley, so that when the hand wheel is rotated, the two bidirectional lead screws rotate synchronously, realizing that the four clamping plates can move simultaneously.

[0019] As a further solution of the present invention, an opening is provided on the front surface of the box body. A door panel is hinged to one side of the opening. A mounting plate is fixedly installed on the inner wall of one side of the box body. Ventilation openings are respectively formed through the outer surfaces of the opposite sides of the box body. A heat dissipation fan is fixedly installed between the inner walls of the ventilation openings. A filter screen is arranged on the outer surface of the box body at the ventilation opening. Waist-shaped holes are formed through the outer surface of the fixing strip. There are multiple waist-shaped holes, and the multiple waist-shaped holes are linearly and evenly distributed on the side surface of the fixing strip, which is convenient for the stable installation of the fixing strip and avoids the situation that the fixing strip may shake after being fixed due to asymmetric fixing.

[0020] As a further solution of the present invention, the swing angle information module, the current information module, and the central processor are signal-connected;

[0021] The acquisition logic of the swing angle deviation coefficient is as follows:

[0022] Step 1: Obtain the actual swing angle and the preset swing angle of the trachea at different moments within time T, and respectively calibrate the actual swing angle and the preset swing angle as and , represents the number of the actual swing angle and the preset swing angle of the trachea at different moments within time T, = 1, 2, 3, 4,..., , represents the number of the numbers of the actual swing angle and the preset swing angle of the trachea at different moments within time T, and is a positive integer;

[0023] Step 2: Calculate the swing angle deviation coefficient, and the calculation expression is:

[0024] In the formula, is the swing angle deviation coefficient.

[0025] As a further solution of the present invention, the acquisition logic of the current coefficient is:

[0026] Step 1: Obtain the actual output current values of the drive motor at different moments within time, and calibrate the actual output current values as , represents the number of the actual output current values of the drive motor at different moments within time, = 1, 2, 3, 4, ……, , is a positive integer;

[0027] Step 2: Calculate the standard deviation of the actual output current values of the drive motor at different moments within time, and calibrate the standard deviation as , and the formula for the standard deviation is: Among them, is the average value of the actual output current values at different moments within time, and the acquisition expression is:

[0028] Step 3: Obtain the current coefficient through the standard deviation of the actual output current values at different moments within T time, and the acquisition expression is: .

[0029] As a further solution of the present invention, the acquisition logic of the evaluation coefficient is:

[0030] Process the swing angle deviation coefficient and the current coefficient to generate the evaluation coefficient , and the formula is: In the formula, are the preset proportionality coefficients of the swing angle deviation coefficient and the current coefficient respectively, and are all greater than 0.

[0031] As a further solution of the present invention, the central processing unit compares the evaluation coefficient with a pre-designed evaluation coefficient reference threshold. If the evaluation coefficient is greater than the pre-designed evaluation coefficient reference threshold, the central processing unit immediately issues an alarm at this time.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. In the present invention, the trachea drives the slider to move up and down. When the slider contacts the rack, the trachea can be driven by the torsion spring to swing reciprocally by a certain angle, so that the trachea drives the nozzle to swing by a certain angle, forming a turbulent air blast, which has a stronger effect, penetrates into the dead corners of complex electrical components, ensures that the dust can be blown clean, and avoids the problem that the dust accumulates on the surface of the electrical components inside the electric cabinet, which will cause the electrical components to be unable to dissipate heat and lead to heat damage of the electrical components.

[0034] 2. In the present invention, the swing angle deviation coefficient and the current coefficient are collected, and the swing angle deviation coefficient and the current coefficient are processed to generate an evaluation coefficient. The evaluation coefficient is compared with a pre-designed evaluation coefficient reference threshold. If the evaluation coefficient is greater than the pre-designed evaluation coefficient reference threshold, it means that during the dust cleaning process in the power distribution cabinet, the nozzle cannot completely clean the stubborn dust with strong adhesion in the dead corners of the electrical components in the power distribution cabinet, and the lower the dust cleaning effect in the power distribution cabinet. At this time, the central processing unit immediately issues an alarm to remind the staff that the dust cleaning effect in the power distribution cabinet is not good and needs to be checked in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic diagram of the overall structure of an intelligent power distribution cabinet proposed by the present invention;

[0036] Figure 2 is a schematic top view structure diagram of an intelligent power distribution cabinet proposed by the present invention;

[0037] Figure 3 is a schematic rear view structure diagram of an intelligent power distribution cabinet proposed by the present invention;

[0038] Figure 4 is a schematic diagram of a bidirectional lead screw of an intelligent power distribution cabinet proposed by the present invention;

[0039] Figure 5 is a schematic diagram of the internal structure of an intelligent power distribution cabinet proposed by the present invention;

[0040] Figure 6 is a schematic diagram of a reciprocating lead screw of an intelligent power distribution cabinet proposed by the present invention;

[0041] Figure 7 is a schematic diagram of a rack of an intelligent power distribution cabinet proposed by the present invention;

[0042] Figure 8 is Figure 7 The partial enlarged schematic diagram at position A in

[0043] Figure 9 The bottom view schematic diagram of an intelligent power distribution cabinet proposed by the present invention;

[0044] Figure 10 is Figure 9 The enlarged schematic diagram of part B in

[0045] Figure 11 The system module diagram of the present invention.

[0046] In the figure: 1, box body; 2, door panel; 3, cooling fan; 4, filter screen; 5, fixing strip; 6, slide rail; 7, chute; 8, slider; 9, clamping plate; 10, bidirectional lead screw; 11, waist-shaped hole; 12. handle; 13, V-shaped opening; 14, clamping strip; 15, mounting plate; 16, reciprocating lead screw; 17, limiting slide bar; 18, rack; 19, air pipe; 20, nozzle; 21, slide seat; 22, torsion spring; 23, dial block; 24, driving motor; 25, air pump; 26, belt; 27, pulley; 28, hand wheel; 29, T-shaped groove. Specific embodiments

[0047] To make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0048] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0050] Example 1: Refer to Figure 1 -Figure 8 , an intelligent power distribution cabinet, comprising a box body 1. A reciprocating lead screw 16 is rotatably installed between the top wall and the bottom wall on one side of the box body 1. A limiting slide bar 17 is fixedly installed between the top wall and the bottom wall on the other side of the box body 1. Slide seats 21 are slidably installed on the outer surfaces of both the reciprocating lead screw 16 and the limiting slide bar 17. One of the slide seats 21 is threadedly connected to the reciprocating lead screw 16. An air pipe 19 is rotatably installed between the two slide seats 21. A plurality of nozzles 20 are fixedly installed on the outer surface of the air pipe 19 close to the back surface of the box body 1. A torsion spring 22 is sleeved on the outer surface of the air pipe 19 close to one end of the reciprocating lead screw 16. A dial block 23 is fixedly installed on the outer surface of the air pipe 19 close to the other end of the limiting slide bar 17. A rack 18 is fixedly installed on the outer surface of the box body 1 close to the dial block 23. The dial block 23 abuts against the outer surface of the rack 18. An air pump 25 is fixedly installed on the top wall of the box body 1. The air pump 25 is communicated with the air pipe 19 through a hose. A driving motor 24 is fixedly installed on the lower surface of the box body 1. The output end of the driving motor 24 penetrates through the outer surface of the box body 1 and is fixedly installed at the rotation center of the reciprocating lead screw 16.

[0051] During use, the driving motor 24 drives the reciprocating lead screw 16 to rotate, so that the reciprocating lead screw 16 drives the slide seat 21 to slide up and down reciprocally. The movement of the slide seat 21 drives the air pipe 19 to move up and down reciprocally, so that the air pipe 19 can blow the high-pressure gas generated by the air pump 25 onto the outer surface of the electrical components. At the same time, the air pipe 19 drives the dial block 23 to move up and down. When the dial block 23 contacts the rack 18, the air pipe 19 can be driven to reciprocally swing by a certain angle through the torsion spring 22. As the air pipe 19 moves up and down, the air pipe 19 can drive the nozzle 20 to continuously swing, thereby forming a turbulent flow in the power distribution cabinet. The turbulent flow disturbs the air in the power distribution cabinet and continuously blows air onto the electrical components, so that the air flow can penetrate into the dead corners of complex electrical components, and the stubborn dust with strong adhesion in the dead corners of the electrical components can be cleaned, ensuring that the dust can be blown clean, avoiding the problem that the dust accumulates on the surface of the electrical components in the electric box, which will cause the electrical components to be unable to dissipate heat and lead to the thermal damage of the electrical components.

[0052] Please refer to the attached Figure 1 -attached Figure 10, in a preferred embodiment, two slide rails 6 are symmetrically and fixedly installed on the back surface of the box body 1. Chutes 7 are provided on the outer surfaces of the two slide rails 6 away from the box body 1. Two sliders 8 are symmetrically and slidably installed on the inner walls of the chutes 7. A bidirectional lead screw 10 is rotatably installed between the inner walls at the opposite ends of the chute 7. In order to enable the corresponding two clamping plates 9 to move synchronously, the two ends of the bidirectional lead screw 10 respectively penetrate through the outer surfaces of the two sliders 8 and are threadedly connected thereto. A clamping plate 9 is fixedly installed on the outer surface of the slider 8 away from the box body 1. A fixing strip 5 is arranged between the two clamping plates 9. A V-shaped opening 13 is provided on the outer surface of the clamping plate 9 close to the fixing strip 5. A clamping strip 14 matching the V-shaped opening 13 is fixedly installed on the outer surface of the fixing strip 5 close to the clamping plate 9. It should be noted that the V-shaped opening 13 and the clamping strip 14 on the fixing strip 5 and the clamping plate 9 are used for quickly installing the box body 1. Pulley wheels 27 are rotatably installed at the centers of the tops of the two slide rails 6. A belt 26 is sleeved on the surfaces of the two pulley wheels 27. Two connecting shafts are fixedly installed at the centers of the bottoms of the two pulley wheels 27. The ends of the two connecting shafts respectively pass through the corresponding slide rails 6 and are fixedly installed at the centers of the tops of the two bidirectional lead screws 10. The surfaces of the two connecting shafts are respectively rotatably arranged inside the inner walls of the corresponding slide rails 6. A hand wheel 28 is rotatably installed at the bottom of one of the slide rails 6. A shaft rod is fixedly installed at the center of the top of the hand wheel 28. The top end of the shaft rod passes through the slide rail 6 and is fixedly installed at the center of the end of the corresponding bidirectional lead screw 10. The surface of the shaft rod is rotatably arranged inside the inner wall of the corresponding slide rail 6. A T-shaped groove 29 is provided at the bottom of the hand wheel 28. A handle 12 is rotatably installed at the short side of the T-shaped groove 29 through a torsion spring. The surface of the handle 12 is slidably arranged inside the T-shaped groove 29. Waist-shaped holes 11 are provided through the outer surface of the fixing strip 5. There are multiple waist-shaped holes 11, and the multiple waist-shaped holes 11 are linearly and evenly distributed on the side surface of the fixing strip 5.

[0053] In use, the user first fixes the fixing strip 5 to the specified position through the expansion screw and the waist-shaped hole 11. Then, the installer manually hangs the clamping plate 9 onto the mounting plate 15. Through the matching of the V-shaped opening 13 and the clamping strip 14, the clamping plate 9 can be easily hung onto the mounting plate 15. After adjusting the position of the box body 1, the installer first pulls out the handle 12 from the inside of the T-shaped groove 29, and then drives the handwheel 28 to rotate through the handle 12. The rotation of the handwheel 28 drives the shaft rod to rotate, the rotation of the shaft rod drives the corresponding bidirectional lead screw 10 to rotate, the rotation of the corresponding bidirectional lead screw 10 drives the pulley 27 connected thereto to rotate, the rotation of the corresponding pulley 27 drives the belt 26 to rotate, the rotation of the belt 26 drives another pulley 27 to rotate, and then this pulley 27 drives the bidirectional lead screw 10 connected thereto to rotate. Further, the two bidirectional lead screws 10 can be rotated simultaneously. The two sliders 8 are driven to move closer to each other by the bidirectional lead screw 10, and the sliders 8 drive the two clamping plates 9 to move closer to each other. The two mounting plates 15 are firmly clamped by the movement of the clamping plates 9. When disassembly is required, only the bidirectional lead screw 10 needs to be rotated in the reverse direction. With this device, when the electrical box needs to be replaced or repaired, only the bidirectional lead screw 10 needs to be rotated for installation and disassembly, which is convenient for quickly fixing and disassembling the box body 1 and facilitates the operation of the installer.

[0054] Please refer to the attached Figure 1 - attached Figure 3 In a preferred embodiment, an opening is provided on the front surface of the box body 1, and a door panel 2 is hinged to one side edge of the opening. A mounting plate 15 is fixedly installed on the inner wall of one side of the box body 1, which is convenient for fixing electrical components through the mounting plate 15.

[0055] In this embodiment, ventilation openings are respectively provided on the outer surfaces of the opposite sides of the box body 1. A heat dissipation fan 3 is fixedly installed between the inner walls of the ventilation openings. A filter screen 4 is arranged on the outer surface of the box body 1 at the ventilation openings. The heat dissipation fan 3 facilitates heat dissipation inside the box body 1 to ensure that the electrical components can work normally. The air is filtered through the filter screen 4 to prevent dust and other sundries from entering the inside of the box body 1. The ventilation directions of the two heat dissipation fans 3 are one in and one out, which is convenient for air circulation. The filter screen 4 can be replaced regularly to ensure that it will not be blocked.

[0056] It should be noted that when the present invention is in use, the user first fixes the fixing strip 5 to the designated position through the expansion screws and the waist-shaped holes 11 (it should be noted that the two fixing strips 5 need to be parallel and the left and right ends are aligned). Then, the installer manually lifts the box body 1 and hangs the clamping plate 9 on the fixing strip 5. Through the matching of the V-shaped opening 13 and the clamping strip 14, the clamping plate 9 can be easily hung on the fixing strip 5. After adjusting the position of the box body 1, the staff pulls out the handle 12 from the inside of the T-shaped groove 29, and then drives the hand wheel 28 to rotate through the handle 12. The rotation of the hand wheel 28 drives the shaft rod to rotate, the rotation of the shaft rod drives the corresponding bidirectional screw rod 10 to rotate, the rotation of the corresponding bidirectional screw rod 10 drives the pulley 27 connected thereto to rotate, the rotation of the corresponding pulley 27 drives the belt 26 to rotate, the rotation of the belt 26 drives another pulley 27 to rotate, and then this pulley 27 drives the bidirectional screw rod 10 connected thereto to rotate. Further, the two bidirectional screw rods 10 can be rotated simultaneously. The two sliders 8 are driven to move closer to each other by the bidirectional screw rod 10, and the sliders 8 drive the two clamping plates 9 to move closer to each other. The two mounting plates 15 are firmly clamped by the movement of the clamping plates 9. When disassembly is required, only the bidirectional screw rod 10 needs to be rotated in the reverse direction. With this device, when the electrical box needs to be replaced and repaired, only the bidirectional screw rod 10 needs to be rotated for installation and disassembly, which is convenient for quickly fixing and disassembling the box body 1 and convenient for the installer to operate. When dust removal of electrical components is required during the use after the box body 1 is installed, the driving motor 24 drives the reciprocating screw rod 16 to rotate, so that the reciprocating screw rod 16 drives the sliding seat 21 to slide up and down reciprocally. The movement of the sliding seat 21 drives the air pipe 19 to move up and down reciprocally, so that the air pipe 19 can blow the high-pressure gas generated by the air pump 25 to the outer surface of the electrical components. At the same time, the air pipe 19 drives the dial block 23 to move up and down. When the dial block 23 contacts the rack 18, the air pipe 19 can be driven to swing reciprocally by a certain angle through the torsion spring 22, so that the air pipe 19 drives the nozzle 20 to swing by a certain angle, and the electrical components can be blown from multiple angles.

[0057] Embodiment 2: As described in Embodiment 1, in the present invention, the driving motor 24 drives the reciprocating screw rod 16 to rotate, so that the reciprocating screw rod 16 drives the sliding seat 21 to slide up and down reciprocally. The movement of the sliding seat 21 drives the air pipe 19 to move up and down reciprocally, so that the air pipe 19 can blow the high-pressure gas generated by the air pump 25 to the outer surface of the electrical components. At the same time, the air pipe 19 drives the dial block 23 to move up and down. When the dial block 23 contacts the rack 18, the air pipe 19 can be driven to swing reciprocally by a certain angle through the torsion spring 22, so that the air pipe 19 drives the nozzle 20 to swing by a certain angle, and the electrical components can be blown from multiple angles.

[0058] In the above process, the reciprocating lead screw 16 is rotated by the driving motor 24, so that the air pipe 19 reciprocates up and down inside the power distribution cabinet, realizing blowing in different areas; at the same time, the air pipe 19 is driven by the torsion spring 22 to reciprocate and swing at a certain angle, realizing blowing on the electrical components from multiple angles; however, if there is a problem with the performance of the torsion spring 22 during the actual dust removal process and it cannot provide enough torque to make the moving air pipe 19 reciprocate and swing, it may cause the swinging angle of the nozzle 20 to be limited, or even unable to swing, and can only blow in one direction, resulting in poor dust cleaning effect inside the power distribution cabinet; therefore, it is necessary to evaluate the dust cleaning process inside the power distribution cabinet, judge whether the dust cleaning inside the power distribution cabinet has reached the expectation, if not, an alarm needs to be issued in time for reminder, as there may be a problem with the dust removal mechanism inside the power distribution cabinet, and it needs to be checked and repaired in time.

[0059] The specific steps are as follows:

[0060] An intelligent power distribution cabinet includes a swing angle information module, a current information module, and a central processor;

[0061] Swing angle information module: used to collect the actual swing angle of the air pipe 19 and the preset swing angle of the stored air pipe 19 during the dust cleaning process inside the power distribution cabinet, process the actual swing angle and the preset swing angle of the air pipe 19, generate a swing angle deviation coefficient, and upload the generated data to the central processor;

[0062] Current information module: used to collect the actual output current values of the driving motor 24 at different times within time T during the dust cleaning process inside the power distribution cabinet, process the actual output current values at different times within time T, generate a current coefficient, and upload the generated data to the central processor;

[0063] Central processor: process the uploaded swing angle deviation coefficient and current coefficient, generate an evaluation coefficient, compare the evaluation coefficient with the pre-designed evaluation coefficient reference threshold, generate an alarm signal according to the comparison result, and issue an alarm.

[0064] The specific operation is as follows:

[0065] Swing angle deviation coefficient: It refers to the difference between the actual swing angle of the air pipe 19 and the preset swing angle during the dust cleaning process in the power distribution cabinet; during the dust cleaning process in the power distribution cabinet, the torsion spring 22 provides torque for the air pipe 19 to drive the air pipe 19 to swing reciprocally by a certain angle, drive the nozzle 20 to swing reciprocally by a certain angle, and realize blowing air at multiple angles to the electrical components; however, if there is a problem with the performance of the torsion spring 22 and it cannot provide enough torque to make the moving air pipe 19 swing reciprocally, there is a large difference between the actual swing angle of the air pipe 19 and the preset swing angle at this time, resulting in poor dust cleaning effect in the power distribution cabinet; for example, if the performance of the torsion spring 22 is okay, it can make the air pipe 19 swing up and down by D° respectively. At this time, by swinging the air pipe 19 up and down by D°, blowing air at multiple angles to the electrical components is realized. At this time, 2D° is the preset swing angle of the air pipe 19; however, if there is a problem with the performance of the torsion spring 22, it may cause the air pipe 19 to not swing up and down to reach D°. At this time, the actual swing angle of the air pipe 19 also cannot reach 2D°, which may lead to poor dust cleaning effect in the power distribution cabinet; therefore, it is very important to ensure that the actual swing angle of the air pipe 19 is consistent with the preset swing angle.

[0066] The acquisition logic of the swing angle deviation coefficient is as follows:

[0067] Step 1: Obtain the actual swing angle and the preset swing angle of the air pipe 19 at different moments within time T, and label the actual swing angle and the preset swing angle as and , represents the number of the actual swing angle and the preset swing angle of the air pipe 19 at different moments within time T, = 1, 2, 3, 4, ……, , represents the number of the numbers of the actual swing angle and the preset swing angle of the air pipe 19 at different moments within time T, and is a positive integer;

[0068] Step 2: Calculate the swing angle deviation coefficient, and the calculation expression is:

[0069] In the formula, is the swing angle deviation coefficient.

[0070] It should be noted that when obtaining the actual swing angle of the air pipe 19 within time T, it refers to the times of the actual swing angle of the air pipe 19 obtained within a fixed time T, The value of The obtained time period is a period of time selected during the process of cleaning the dust inside the power distribution cabinet; in addition, the preset swinging angle of the air pipe 19 is also determined according to the actual situation and is not a fixed value; furthermore, the actual swinging angles of the air pipe 19 at different moments within time T can be obtained through the swinging angle information module provided inside the power distribution cabinet.

[0071] It can be seen from the calculated expression that the larger the displayed value of the swinging angle deviation coefficient, it indicates that during the process of cleaning the dust inside the power distribution cabinet, the reciprocating swinging angle of the air pipe 19 is limited, which leads to a limited swinging angle of the nozzle 20, resulting in a poor dust cleaning effect inside the power distribution cabinet. At this time, it is more necessary to issue an alarm for reminder, and the evaluation coefficient is larger at this time; the smaller the displayed value of the swinging angle deviation coefficient, it indicates that during the process of cleaning the dust inside the power distribution cabinet, the reciprocating swinging angle of the air pipe 19 reaches the expectation, driving the swinging angle of the nozzle 20 to reach the expectation, and the dust cleaning effect inside the power distribution cabinet is better. At this time, it is less necessary to issue an alarm for reminder, and the evaluation coefficient is smaller at this time.

[0072] Current coefficient: It refers to the instability degree of the current of the driving motor 24 that provides the driving force when the reciprocating lead screw 16 rotates during the process of cleaning the dust inside the power distribution cabinet. When the current output by the driving motor 24 is more unstable, it will cause the rotation of the reciprocating lead screw 16 to become uneven or fluctuate, resulting in more unstable up and down reciprocating sliding of the sliding seat 21. It may even cause the sliding seat 21 to be fixed and stay at a certain position of the reciprocating lead screw 16 all the time, resulting in a poor dust cleaning effect inside the power distribution cabinet; it may even occur that the residence time at a certain position of the reciprocating lead screw 16 is too short, while the residence time at another position of the reciprocating lead screw 16 is too long, which may cause the nozzle 20 to stay in a certain area for too short a time and unable to thoroughly clean the stubborn dust with strong adhesion in the dead corners of the electrical components inside the power distribution cabinet; therefore, it is very important to ensure the stability of the current output by the driving motor 24.

[0073] The acquisition logic of the current coefficient is as follows:

[0074] Step 1: Obtain the actual output current values of the driving motor 24 at different moments within time, and calibrate the actual output current values as , indicating the number of the actual output current values of the driving motor 24 at different moments within time, = 1, 2, 3, 4,..., , being a positive integer;

[0075] Step 2: Calculate the actual output current values of the driving motor 24 at different moments within The standard deviation, and calibrate the standard deviation to , the standard deviation The calculation formula is: Wherein, is The actual output current values at different times within the time The average value, and the obtained expression is: ;

[0076] Step 3, through the actual output current values at different times within the T time The standard deviation , obtain the current coefficient , the obtained expression is: .

[0077] It should be noted that The actual output current values of the drive motor 24 at different times within the time Can be obtained according to the current information module inside the power distribution cabinet.

[0078] It can be seen from the calculation expression that the larger the expression value of the current coefficient, the more uneven the rotation of the air reciprocating lead screw 16 will become during the dust cleaning in the power distribution cabinet, and the more uneven the residence time of the nozzle 20 in different areas of the power distribution cabinet, resulting in a lower degree of thorough cleaning of the stubborn dust with strong adhesion in the dead corners of the electrical components in the power distribution cabinet, thus resulting in a poor dust cleaning effect in the power distribution cabinet. At this time, an alarm needs to be issued for reminder, and the evaluation coefficient is larger at this time; the smaller the expression value of the current coefficient, the more uniform the rotation of the air reciprocating lead screw 16 during the dust cleaning in the power distribution cabinet, the more uniform the residence time of the nozzle 20 in different areas of the power distribution cabinet, and the higher the degree of thorough cleaning of the stubborn dust with strong adhesion in the dead corners of the electrical components in the power distribution cabinet. At this time, it is less necessary to issue an alarm for reminder, and the evaluation coefficient is smaller at this time.

[0079] Process the swing angle deviation coefficient , the current coefficient to generate an evaluation coefficient , and the formula based on is: In the formula, Are the preset proportionality coefficients of the swing angle deviation coefficient and the current coefficient respectively, and Are all greater than 0.

[0080] Compare the evaluation coefficient with the pre-designed evaluation coefficient reference threshold ;

[0081] If the evaluation coefficient is less than the pre-designed evaluation coefficient reference threshold , it means that during the process of cleaning the dust in the power distribution cabinet, the nozzle 20 can thoroughly clean the stubborn dust with strong adhesion in the dead corners of the electrical components in the power distribution cabinet, and the better the cleaning effect of the dust in the power distribution cabinet; if the evaluation coefficient is greater than the pre-designed evaluation coefficient reference threshold , it means that during the process of cleaning the dust in the power distribution cabinet, the nozzle 20 cannot thoroughly clean the stubborn dust with strong adhesion in the dead corners of the electrical components in the power distribution cabinet, and the lower the cleaning effect of the dust in the power distribution cabinet. In order to clean the dust in the power distribution cabinet in a timely manner, at this time, the central processing unit immediately issues an alarm to remind the staff that the cleaning effect of the dust in the power distribution cabinet is not good and needs to be checked in a timely manner.

[0082] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent power distribution cabinet, comprising a cabinet (1), characterized in that: A driving motor (24) is fixedly mounted on the lower surface of the box body (1); a reciprocating screw (16) is rotatably mounted between the top wall and the bottom wall on one side of the box body (1); a limiting slide bar (17) is fixedly mounted between the top wall and the bottom wall on the other side of the box body (1); and slide seats (21) are slidably mounted on the outer surfaces of the reciprocating screw (16) and the limiting slide bar (17), one of the slide seats (21) being threadedly connected to the reciprocating screw (16); and a gas cylinder (21) is rotatably mounted between the two slide seats (21). A tube (19), a plurality of nozzles (20) are fixedly mounted on the outer surface of the air tube (19) close to the back of the box body (1), a torsion spring (22) is sleeved on the outer surface of the air tube (19) close to one end of the reciprocating screw rod (16), a shift block (23) is fixedly mounted on the outer surface of the air tube (19) close to one end of the limit slide rod (17), a rack (18) is fixedly mounted on the outer surface of the box body (1) close to the shift block (23), and the shift block (23) abuts against the outer surface of the rack (18); It also includes a swing angle information module, a current information module, and a central processing unit; Swing angle information module: used to collect the actual swing angle of the trachea (19); Current information module: used to collect the current value actually output by the drive motor (24); Central processing unit: Analyze the output signal of the swing angle information module to generate a swing angle deviation coefficient, analyze the output signal of the current information module to generate a current coefficient, and process the swing angle deviation coefficient with the current coefficient to generate an evaluation coefficient, and compare the evaluation coefficient with a pre-designed evaluation coefficient reference threshold, and issue an alarm based on the comparison result.

2. The intelligent power distribution cabinet according to claim 1, characterized in that: An air pump (25) is fixedly mounted on the top wall of the box (1), and the air pump (25) is connected to the air pipe (19) via a hose. A drive motor (24) is fixedly mounted on the lower surface of the box (1), and an output end of the drive motor (24) penetrates the outer surface of the box (1) and is fixedly mounted on the rotation center of the reciprocating screw (16).

3. The intelligent power distribution cabinet according to claim 2, characterized in that: Two slide rails (6) are symmetrically fixedly installed on the back of the box body (1), and the outer surfaces of the two slide rails (6) away from the box body (1) are provided with slide grooves (7), and the inner walls of the slide grooves (7) are symmetrically slidably installed with two sliders (8), and a bidirectional screw rod (10) is rotatably installed between the inner walls at opposite ends of the slide groove (7), and the two ends of the bidirectional screw rod (10) respectively penetrate the outer surfaces of the two sliders (8) and are threadedly connected thereto, and a clamping plate (9) is fixedly installed on the outer surface of the slider (8) away from the box body (1), and a fixing strip (5) is arranged between the two clamping plates (9), and the outer surface of the clamping plate (9) close to the fixing strip (5) is provided with a V-shaped opening (13), and the outer surface of the fixing strip (5) close to the clamping plate (9) is fixedly installed with a clamping strip (14) matching the V-shaped opening (13).

4. The intelligent power distribution cabinet according to claim 3, characterized in that: A pulley (27) is rotatably mounted at the center of the top of the two slide rails (6), and a belt (26) is sleeved on the surface of the two pulleys (27). Two connecting shafts are fixedly mounted at the center of the bottom of the two pulleys (27). The ends of the two connecting shafts pass through the corresponding slide rails (6) and are respectively fixedly mounted at the center of the top of the two bidirectional screw rods (10). The surfaces of the two connecting shafts are respectively rotatably arranged in the inner wall of the corresponding slide rail (6). A handwheel (28) is rotatably mounted at the bottom of one of the slide rails (6). A shaft is fixedly mounted at the center of the top of the handwheel (28). The top of the shaft passes through the slide rail (6) and is fixedly mounted at the center of the end of the corresponding bidirectional screw rod (10). The surface of the shaft is rotatably arranged in the inner wall of the corresponding slide rail (6). A T-shaped slot (29) is opened at the bottom of the handwheel (28). A handle (12) is rotatably mounted on the short side of the T-shaped slot (29) through a torsion spring. The surface of the handle (12) is slidably arranged inside the T-shaped slot (29).

5. The intelligent power distribution cabinet according to claim 1, characterized in that: The front of the box body (1) is provided with an opening, a door panel (2) is hingedly connected to one side of the opening, and a mounting plate (15) is fixedly mounted on the inner wall of one side of the box body (1).

6. The intelligent power distribution cabinet according to claim 3, characterized in that: Ventilation holes are formed through the outer surfaces of opposite sides of the box body (1), a cooling fan (3) is fixedly installed between the inner walls of the ventilating holes, a filter screen (4) is arranged on the outer surface of the box body (1) located at the ventilating holes, a waist-shaped hole (11) is formed through the outer surface of the fixing strip (5), a plurality of waist-shaped holes (11) are provided, and the plurality of waist-shaped holes (11) are evenly distributed in a straight line on the side of the fixing strip (5).

7. The intelligent power distribution cabinet according to claim 1, characterized in that: The swing angle information module, the current information module, and the central processing unit are signal connected; The acquisition logic of the swing angle deviation coefficient is: Step 1: Obtain the actual swing angle and the preset swing angle of the air pipe (19) at different times within the time T, and calibrate the actual swing angle and the preset swing angle as and , The numbers representing the actual swing angles of the air pipe (19) and the preset swing angles at different times within the time T, =1, 2, 3, 4, ..., , represents the number of numbers of the actual swing angles of the air pipe (19) and the preset swing angles at different times within the time T, and is a positive integer; Step 2: Calculate the swing angle deviation coefficient. The calculation expression is: In the formula, is the swing angle deviation coefficient.

8. The intelligent power distribution cabinet according to claim 1, characterized in that: The acquisition logic of the current coefficient is: Step 1: Get the drive motor (24) The actual output current value at different times within a certain period of time is calibrated as , Indicates that the drive motor (24) is The number of the actual output current value at different times in time, =1, 2, 3, 4, ..., , is a positive integer; Step 2: Calculate the driving motor (24) The actual output current value at different times within a certain period of time The standard deviation of , standard deviation The calculation formula is: in, for The actual output current value at different times within a certain period of time The average value of is obtained as: ; Step 3: The actual output current value at different times within the T time Standard Deviation , get the current coefficient , the expression obtained is: .

9. The intelligent power distribution cabinet according to claim 8, characterized in that: The acquisition logic of the evaluation coefficient is: The swing angle deviation coefficient , current coefficient Processing to generate evaluation coefficients , based on the formula: In the formula, are the preset proportional coefficients of the swing angle deviation coefficient and the current coefficient, respectively, and Both are greater than 0.

10. The intelligent power distribution cabinet according to claim 1, characterized in that: The central processing unit compares the evaluation coefficient with a pre-designed evaluation coefficient reference threshold value. If the evaluation coefficient is greater than the pre-designed evaluation coefficient reference threshold value, the central processing unit immediately issues an alarm.

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