A low-voltage cabinet with compact assembly structure

Abstract

The present invention belongs to the technical field of low-voltage cabinets, specifically a low-voltage cabinet with a compact assembly structure, including a cabinet body, an air extraction pump is installed on the top of the cabinet body, the air inlet end of the air extraction pump is fixedly connected to an air inlet pipe, and two sets of air inlet dehumidification components are fixedly installed on the back of the cabinet body. The air extraction pump is started, the dustproof plate is used for dust prevention, and the moisture in the air is absorbed by the hygroscopic sponge plate, thereby processing the dust and moisture in the air. When a large amount of water accumulates on the hygroscopic sponge plate on the right, the excess water will be detected by the water immersion detection sensor, and the air induced closing component will close the shell on the right, and the first solenoid valve will be closed and the second solenoid valve will be opened. At this time, the outside air will enter through the shell on the left, and the hot air absorbed by the air extraction pump will enter the shell on the right through the air supply pipe. The hot air will dry the hygroscopic sponge plate on the right, thereby performing dehumidification processing.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage cabinets, and in particular to a low-voltage cabinet with a compact assembly structure. Background Art

[0002] A low-voltage cabinet, also known as a control cabinet, is a cabinet in which switchgear, measuring instruments, protective electrical appliances, and auxiliary equipment are assembled in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements. Its layout should meet the requirements for normal operation of the power system, be easy to inspect and repair, and not endanger the safety of people and surrounding equipment. During normal operation, the circuit can be connected or disconnected with the help of manual or automatic switches. In the event of a fault or abnormal operation, the circuit can be cut off or an alarm can be given with the help of protective electrical appliances. Various parameters in operation can be displayed by measuring instruments, and certain electrical parameters can also be adjusted. It can also give prompts or send signals when the normal operating state deviates. It is often used in various power generation, distribution, and substations.

[0003] After searching, the applicant discovered some typical prior art, such as the low-voltage cabinets covered by Chinese invention patents CN109888631B, CN118336569B, and CN115459096B. These cabinets easily introduce dust and moisture into the air during heat exchange. The long-term accumulation of these impurities can easily cause short circuits and tripping accidents. Furthermore, the incoming air is not dehumidified, and the effects of humidity are a chronic process. Maintenance is delayed until the equipment is completely inoperable, increasing both the difficulty and intensity of repairs and the cost. Therefore, we propose a low-voltage cabinet with a compact assembly structure. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a low-pressure cabinet with a compact assembly structure. The vacuum pump is started, the dustproof plate is used to prevent dust, and the moisture in the air is absorbed by the hygroscopic sponge plate, thereby processing the dust and moisture in the air. When a large amount of water accumulates on the hygroscopic sponge plate on the right, the excess water will be detected by the water immersion detection sensor. At this time, the air induced closing component closes the shell on the right, and the first solenoid valve is closed and the second solenoid valve is opened. At this time, the outside air will enter through the shell on the left, and the hot air absorbed by the vacuum pump will enter the shell on the right through the air supply pipe. The hot air will dry the hygroscopic sponge plate on the right, thereby performing dehumidification processing, thereby solving the background problem. The specific technical solution is as follows:

[0005] A low-voltage cabinet with a compact assembly structure comprises a cabinet body, an air extraction pump is installed on the top of the cabinet body, an air inlet end of the air extraction pump is fixedly connected to an air inlet pipe, and two sets of air inlet dehumidification components are fixedly installed on the back of the cabinet body;

[0006] The air inlet dehumidification assembly includes a shell, a dustproof plate is fixedly installed on the air inlet end of the shell, a moisture-absorbing sponge plate is installed in the inner middle of the shell, an air outlet end of the shell is installed with an air induced closing mechanism for closing the air outlet end, a mounting bar is fixedly installed on the air outlet end of the shell, a mounting sleeve is fixedly installed in the inner middle of the mounting bar, a rotary joint is rotatably embedded on the mounting sleeve, one end of the rotary joint is rotatably connected to an air supply pipe, and the other end of the rotary joint is fixedly connected to the air outlet end of the vacuum pump through an air supply pipe, a first solenoid valve is installed on the left air supply pipe, and a second solenoid valve is fixedly installed on the right air supply pipe.

[0007] Preferably, the induced draft closing mechanism includes a first motor, which is fixedly mounted on the shell, and the output end of the first motor is fixedly connected to a driving gear, and the outer surface of the shell is rotatably mounted with a rotating ring gear, and the rotating ring gear is engaged with the driving gear, and the outer surface of the shell is rotatably mounted with a plurality of annularly distributed first rotating shafts, and the outer surface of the mounting sleeve is rotatably mounted with a plurality of annularly distributed second rotating shafts, and blades are fixedly connected between the corresponding first rotating shafts and the second rotating shafts, and the end of the first rotating shaft is fixedly connected to the driving bevel gear, and a bevel gear ring is fixedly mounted on the rotating ring gear, and the bevel gear ring is engaged with the driving bevel gear.

[0008] Preferably, a water immersion detection sensor is installed at the bottom of the shell.

[0009] Preferably, water squeezing rollers are provided on the front and rear sides of the moisture-absorbing sponge plate, a second motor is fixedly installed on the bottom of the shell, and screw rods are rotatably installed on the front and rear sides of the moisture-absorbing sponge plate. The output end of the second motor is fixedly connected to the end of one group of screw rods, and the outer surface of the screw rod is fixedly sleeved with a transmission gear, and the two groups of transmission gears are meshed. The outer surface of the screw rod is threaded with a threaded block, and the water squeezing roller is rotatably installed on the corresponding threaded block.

[0010] Preferably, a guide block is rotatably mounted on the end of the squeezing roller away from the threaded block, a limiting rod is slidably penetrated through the guide block, and the end of the limiting rod is fixedly connected to the inner wall of the shell.

[0011] Preferably, the outer surface of the air delivery pipe is fixedly sleeved with a first driven bevel gear, a transmission rod is rotatably penetrated on the shell, the bottom of the transmission rod is fixedly connected with a first active bevel gear, the first active bevel gear is meshed with the first driven bevel gear, the top of the transmission rod is fixedly connected with a first driven pulley, the top of the front side screw rod is fixedly connected with a first active pulley, a first belt is tensionedly sleeved between the first active pulley and the first driven pulley, and a number of annularly distributed jet branch pipes are fixedly connected to the air delivery pipe.

[0012] Preferably, a transmission shaft is rotatably installed on the dustproof plate, one end of the transmission shaft is fixedly connected to the second driven bevel gear, the other end of the transmission shaft is fixedly connected to a cleaning sleeve, and a number of brush plates are installed on the cleaning sleeve, and a rotating rod is rotatably installed on the shell, the bottom of the rotating rod is fixedly connected to the second active bevel gear, the second active bevel gear is meshed with the second driven bevel gear, the top of the rotating rod is fixedly connected to the second driven pulley, the top of the rear side screw rod is fixedly connected to the second active pulley, and a second belt is tensioned between the second active pulley and the second driven pulley.

[0013] Preferably, an interception net is fixedly installed on the air inlet side of the shell, and a dust collecting shell is fixedly installed on the bottom of the shell.

[0014] Preferably, the cabinet body includes an incoming switch cabinet unit, an outgoing switch cabinet unit and a capacitor compensation cabinet unit arranged in sequence, and the two groups of air inlet dehumidification components are respectively located at the bottom of the incoming switch cabinet unit and the capacitor compensation cabinet unit.

[0015] Preferably, the low-voltage cabinet further includes a controller, and the incoming switch cabinet unit and the capacitor compensation cabinet unit are both installed with a temperature sensor and a humidity sensor, and the temperature sensor and the humidity sensor are both electrically connected to the controller.

[0016] The present invention provides a low-voltage cabinet with a compact assembly structure. Compared with the prior art, it has the following advantages:

[0017] 1. This assembly structure is a compact low-voltage cabinet. When the low-voltage cabinet dissipates heat, the vacuum pump is started, the dustproof plate is used to prevent dust, and the moisture in the air is absorbed by the hygroscopic sponge plate to absorb moisture, thereby processing the dust and moisture in the air. When a large amount of water accumulates on the hygroscopic sponge plate on the right, the excess water will be detected by the water immersion detection sensor. At this time, the draft closing component will close the shell on the right, and the first solenoid valve will be closed and the second solenoid valve will be opened. At this time, the outside air will enter through the shell on the left, and the hot air absorbed by the vacuum pump will enter the shell on the right through the air supply pipe. The hot air will dry the hygroscopic sponge plate on the right, thereby performing dehumidification. When the hygroscopic sponge plate on the left accumulates water, hot air drying is performed according to the above principle, thereby forming a virtuous cycle to ensure the normal operation of the electrical structure in the cabinet.

[0018] 2. The assembly structure is a compact low-voltage cabinet. When drying the current hygroscopic sponge board, the second motor is started at the same time, and the second motor will rotate forward and reverse. The second motor cooperates with the screw rod to drive two sets of water squeezing rollers to move up and down. The water squeezing rollers will squeeze water from the hygroscopic sponge board when they move up and down, thereby improving the drying effect of the hygroscopic sponge board. When drying the hygroscopic sponge board in the current shell, the second motor will drive the transmission rod to rotate, and when the transmission rod rotates, it will drive the jet pipe to rotate. When the jet pipe rotates, hot air will be evenly sprayed onto the hygroscopic sponge board, thereby improving the drying effect of the current hygroscopic sponge board. When the second motor is working, it will drive the brush plate to move forward and reverse through the second belt. When the brush plate moves, it will brush off the impurities attached to the dustproof plate, so that the impurities can fall into the dust collecting shell by their own gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but rather the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the back of the main body of the present invention;

[0022] Figure 3 It is a two-dimensional schematic diagram of the front of the main body of the present invention;

[0023] Figure 4 It is a front view schematic diagram of the air inlet dehumidification assembly structure of the present invention;

[0024] Figure 5 It is a rear view schematic diagram of the air inlet dehumidification assembly structure of the present invention;

[0025] Figure 6 Schematic diagram of the cross-section of the air inlet dehumidification assembly structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of part of the air inlet dehumidification component of the present invention;

[0027] Figure 8 It is a front view schematic diagram of the structure of the induced draft closing mechanism of the present invention;

[0028] Figure 9 It is a schematic diagram of the rear view of the structure of the induced draft closing mechanism of the present invention;

[0029] Figure 10 It is a schematic structural diagram of the water squeezing roller and the moisture absorbing sponge plate of the present invention.

[0030] Figure: 1, cabinet; 2, air inlet dehumidification assembly; 3, vacuum pump; 4, air inlet pipe; 5, second solenoid valve; 6, first solenoid valve; 7, air supply pipe; 8, housing; 9, mounting bar; 10, drive gear; 11, first motor; 12, dust collection shell; 13, interception net; 14, second belt; 15, first belt; 16, transmission gear; 17, squeeze roller; 18, air jet branch pipe; 19, second active bevel gear; 20, suction Wet sponge plate; 21. Rotating rod; 22. Dustproof plate; 23. Rotating ring gear; 24. Conical ring gear; 25. Mounting sleeve; 26. Driving bevel gear; 27. Blade; 28. Rotary joint; 29. ​​First driven bevel gear; 30. First driving bevel gear; 31. Air pipe; 32. Screw; 33. Threaded block; 34. Second motor; 35. Limit rod; 36. Water immersion detection sensor; 37. Transmission rod; 38. Brush plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] The "first" and "second" in the present invention do not represent specific quantities and orders, but are only used to distinguish names.

[0035] Example 1:

[0036] See also Figure 1-10 The present invention provides a low-voltage cabinet with a compact assembly structure, comprising a cabinet body 1, a vacuum pump 3 is installed on the top of the cabinet body 1, an air inlet end of the vacuum pump 3 is fixedly connected to an air inlet pipe 4, and two sets of air inlet dehumidification components 2 are fixedly installed on the back of the cabinet body 1;

[0037] The air inlet dehumidification assembly 2 includes a shell 8, a dustproof plate 22 is fixedly installed on the air inlet end of the shell 8, a moisture-absorbing sponge plate 20 is installed in the middle of the interior of the shell 8, and an air induced closing mechanism for closing the air outlet end is installed on the air outlet end of the shell 8. A mounting bar 9 is fixedly installed on the air outlet end of the shell 8, and a mounting sleeve 25 is fixedly installed in the middle of the inner part of the mounting bar 9. A rotary joint 28 is rotatably embedded on the mounting sleeve 25, and one end of the rotary joint 28 is rotatably connected to an air supply pipe 31, and the other end of the rotary joint 28 is fixedly connected to the air outlet end of the vacuum pump 3 through an air supply pipe 7. A first solenoid valve 6 is installed on the air supply pipe 7 on the left, and a second solenoid valve 5 is fixedly installed on the air supply pipe 7 on the right. A water immersion detection sensor 36 is installed at the bottom of the shell 8.

[0038] When the low-voltage cabinet is dissipating heat, the vacuum pump 3 is started, the first solenoid valve 6 is closed, and the shell 8 on the left is closed by the air induced closing component. The external air first enters through the shell 8 on the right, and the vacuum pump 3 drives the hot air inside the cabinet 1 and then is discharged through the shell 8 on the left. When the external air enters through the shell 8 on the right, the dustproof plate 22 is used to prevent dust, and the moisture in the air is absorbed by the hygroscopic sponge plate 20, thereby processing the dust and moisture in the air. When a large amount of water accumulates on the hygroscopic sponge plate 20 on the right, the excess water will be detected by the water immersion detector. The sensor 36 detects that at this time the draft closing component closes the shell 8 on the right, and at this time the first solenoid valve 6 is closed, and the second solenoid valve 5 will be opened. At this time, the external air will enter through the shell 8 on the left, and the hot air absorbed by the vacuum pump 3 will enter the shell 8 on the right through the air supply pipe 7. The hot air will dry the hygroscopic sponge board 20 on the right, and then dehumidification treatment can be performed. When the hygroscopic sponge board 20 on the left accumulates moisture, hot air drying is performed according to the above principle, thereby forming a virtuous cycle to ensure the normal operation of the electrical structure in the cabinet 1.

[0039] The induced draft closing mechanism includes a first motor 11, which is fixedly mounted on the housing 8. The output end of the first motor 11 is fixedly connected to the driving gear 10. The outer surface of the housing 8 is rotatably mounted with a rotating ring gear 23, and the rotating ring gear 23 is engaged with the driving gear 10. The outer surface of the housing 8 is rotatably mounted with a plurality of annularly distributed first rotating shafts, and the outer surface of the mounting sleeve 25 is rotatably mounted with a plurality of annularly distributed second rotating shafts. Blades 27 are fixedly connected between the corresponding first rotating shafts and the second rotating shafts. The end of the first rotating shaft is fixedly connected to the driving bevel gear 26. A bevel gear ring 24 is fixedly mounted on the rotating ring gear 23, and the bevel gear ring 24 is engaged with the driving bevel gear 26.

[0040] When a shell 8 needs to be closed, the first motor 11 is started. When the first motor 11 is working, it will drive the driving gear 10 to rotate. Since the rotating ring gear 23 is engaged with the driving gear 10, it will drive the rotating ring gear 23 to rotate. Since the bevel ring gear 24 is engaged with the driving bevel gear 26, it will drive several blades 27 to rotate. When the blades 27 rotate, not only the size of the air intake can be changed, but also the current shell 8 can be closed, which is convenient for drying its wet moisture-absorbing sponge board 20.

[0041] Example 2:

[0042] See also Figure 1-10 The present invention provides a low-voltage cabinet with a compact assembly structure, comprising a cabinet body 1. An air extraction pump 3 is mounted on the top of the cabinet body 1. An air intake pipe 4 is fixedly connected to the air intake end of the air extraction pump 3. Two sets of air intake and dehumidification components 2 are fixedly mounted on the back of the cabinet body 1. The other end of the air intake pipe 4 is connected to the inner cavity of the cabinet body.

[0043] The air inlet dehumidification assembly 2 includes a shell 8, a dustproof plate 22 is fixedly installed on the air inlet end of the shell 8, a moisture-absorbing sponge plate 20 is installed in the middle of the interior of the shell 8, an air induced closing mechanism is installed on the air outlet end of the shell 8, a mounting bar 9 is fixedly installed on the air outlet end of the shell 8, a mounting sleeve 25 is fixedly installed in the middle of the mounting bar 9, a rotary joint 28 is rotatably embedded on the mounting sleeve 25, one end of the rotary joint 28 is rotatably connected to the air supply pipe 31, and the other end of the rotary joint 28 is fixedly connected to the air outlet end of the vacuum pump 3 through the air supply pipe 7, a first solenoid valve 6 is installed on the air supply pipe 7 on the left, and a second solenoid valve 5 is fixedly installed on the air supply pipe 7 on the right, and a water immersion detection sensor 36 is installed at the bottom of the shell 8.

[0044] When the low-voltage cabinet is dissipating heat, the vacuum pump 3 is started, the first solenoid valve 6 is closed, and the shell 8 on the left is closed by the air induced closing component. The external air first enters through the shell 8 on the right, and the vacuum pump 3 drives the hot air inside the cabinet 1 and then is discharged through the shell 8 on the left. When the external air enters through the shell 8 on the right, the dustproof plate 22 is used to prevent dust, and the moisture in the air is absorbed by the hygroscopic sponge plate 20, thereby processing the dust and moisture in the air. When a large amount of water accumulates on the hygroscopic sponge plate 20 on the right, the excess water will be detected by the water immersion detector. The sensor 36 detects that at this time the draft closing component closes the shell 8 on the right, and at this time the first solenoid valve 6 is closed, and the second solenoid valve 5 will be opened. At this time, the external air will enter through the shell 8 on the left, and the hot air absorbed by the vacuum pump 3 will enter the shell 8 on the right through the air supply pipe 7. The hot air will dry the hygroscopic sponge board 20 on the right, and then dehumidification treatment can be performed. When the hygroscopic sponge board 20 on the left accumulates moisture, hot air drying is performed according to the above principle, thereby forming a virtuous cycle to ensure the normal operation of the electrical structure in the cabinet 1.

[0045] The induced draft closing mechanism includes a first motor 11, which is fixedly mounted on the housing 8. The output end of the first motor 11 is fixedly connected to the drive gear 10. A rotating ring gear 23 is rotatably mounted on the outer surface of the housing 8, and the rotating ring gear 23 meshes with the drive gear 10. A plurality of annularly distributed first rotating shafts are rotatably mounted on the outer surface of the housing 8, and a plurality of annularly distributed second rotating shafts are rotatably mounted on the outer surface of the mounting sleeve 25. Blades 27 are fixedly connected between the corresponding first and second rotating shafts. The ends of the first rotating shafts are fixedly connected to the driving bevel gear 26, and the other ends of the first rotating shafts are fixedly connected to the blades 27. A bevel gear ring 24 is fixedly mounted on the rotating ring gear 23, and the bevel gear ring 24 meshes with the driving bevel gear 26. The blades 27 include multiple blades, and when two adjacent blades 27 rotate through a preset angle and their adjacent sides approach each other, the two adjacent blades 27 at least partially overlap, thereby closing the air outlet end and thereby closing the housing 8.

[0046] When a shell 8 needs to be closed, the first motor 11 is started. When the first motor 11 is working, it will drive the driving gear 10 to rotate. Since the rotating ring gear 23 is engaged with the driving gear 10, it will drive the rotating ring gear 23 to rotate. Since the bevel ring gear 24 is engaged with the driving bevel gear 26, it will drive several blades 27 to rotate. When the blades 27 rotate, not only the size of the air intake can be changed, but also the current shell 8 can be closed, which is convenient for drying its wet moisture-absorbing sponge board 20.

[0047] See also Figure 1-10The present invention provides a low-voltage cabinet with a compact assembly structure. The front and rear sides of the moisture-absorbing sponge board 20 are both provided with water-squeezing rollers 17. A second motor 34 is fixedly installed on the bottom of the shell 8. The front and rear sides of the moisture-absorbing sponge board 20 are both rotatably installed with screw rods 32. The output end of the second motor 34 is fixedly connected to the end of one group of screw rods 32. The outer surface of the screw rod 32 is fixedly covered with a transmission gear 16. The two groups of transmission gears 16 are engaged. The outer surface of the screw rod 32 is threaded with a threaded block 33. The water-squeezing roller 17 is rotatably installed on the corresponding threaded block 33.

[0048] A guide block is rotatably mounted on the end of the squeeze roller 17 away from the threaded block 33 , and a limiting rod 35 is slidably penetrated on the guide block. The end of the limiting rod 35 is fixedly connected to the inner wall of the housing 8 .

[0049] When the current hygroscopic sponge board 20 is dried, the second motor 34 is started at the same time, and the second motor 34 will rotate forward and reverse. The second motor 34 cooperates with the screw rod 32 to drive the two sets of water squeezing rollers 17 to reciprocate up and down. When the water squeezing rollers 17 reciprocate up and down, they will squeeze water from the hygroscopic sponge board 20, thereby improving the drying effect of the hygroscopic sponge board 20.

[0050] The outer surface of the air delivery pipe 31 is fixedly sleeved with a first driven bevel gear 29. A transmission rod 37 is rotatably provided on the housing 8. The bottom of the transmission rod 37 is fixedly connected to the first driving bevel gear 30, which meshes with the first driven bevel gear 29. The top of the transmission rod 37 is fixedly connected to the first driven pulley. The top of the front screw rod 32 is fixedly connected to the first driving pulley. A first belt 15 is tensioned between the first driving pulley and the first driven pulley. The air delivery pipe 31 is fixedly connected to a plurality of annularly distributed air jet branch pipes 18. Preferably, the air jet branch pipe 18 is provided with a plurality of air jet holes near the side wall of the moisture-absorbing sponge board so that when the air jet branch pipe 18 rotates, hot air is evenly sprayed toward the moisture-absorbing sponge board 20, thereby improving the drying effect of the current moisture-absorbing sponge board 20.

[0051] When the hygroscopic sponge plate 20 in the current shell 8 is dried, the second motor 34 will drive the transmission rod 37 to rotate. When the transmission rod 37 rotates, the jet branch pipe 18 will be driven to rotate. When the jet branch pipe 18 rotates, hot air will be evenly sprayed onto the hygroscopic sponge plate 20, thereby improving the drying effect of the current hygroscopic sponge plate 20.

[0052] A transmission shaft is rotatably mounted on the dustproof plate 22, one end of the transmission shaft is fixedly connected to the second driven bevel gear, and the other end of the transmission shaft is fixedly connected to a cleaning sleeve, and a number of brush plates 38 are installed on the cleaning sleeve. The brush plates 38 are used to clean impurities adhering to the dustproof plate 22, and a rotating rod 21 is rotatably mounted on the housing 8. The bottom of the rotating rod 21 is fixedly connected to the second active bevel gear 19, and the second active bevel gear 19 is meshed with the second driven bevel gear. The top of the rotating rod 21 is fixedly connected to the second driven pulley, and the top of the rear side screw rod 32 is fixedly connected to the second active pulley, and a second belt 14 is tensioned between the second active pulley and the second driven pulley.

[0053] An interception net 13 is fixedly installed on the air inlet side of the shell 8, and a dust collecting shell 12 is fixedly installed on the bottom of the shell 8.

[0054] When the second motor 34 is working, the second belt 14 drives the brush plate 38 to move back and forth. When the brush plate 38 moves, it brushes away impurities attached to the dustproof plate 22, so that the impurities fall into the dust collecting shell 12 by their own gravity.

[0055] Example 3:

[0056] It should be understood that this embodiment at least includes all the technical features of the above embodiments, and is further described in detail based on the above embodiments.

[0057] Preferably, the cabinet body 1 includes an incoming switch cabinet unit, an outgoing switch cabinet unit, and a capacitor compensation cabinet unit arranged in sequence. Two sets of air inlet dehumidification assemblies 2 are located at the bottom of the incoming switch cabinet unit and the capacitor compensation cabinet unit, respectively. Ventilation pipes are provided between the incoming and outgoing switch cabinet units, and between the outgoing and capacitor compensation cabinet units, connecting their internal cavities for air circulation. The low-voltage cabinet also includes a controller. Temperature sensors and humidity sensors are installed in the incoming and capacitor compensation cabinet units, and are both electrically connected to the controller.

[0058] The water immersion detection sensor 36, the first motor 11, the second motor 34, and the air extraction pump 3 are all electrically connected to the controller. The water immersion detection sensor 36 provides feedback signals to the controller, which then determines whether a large amount of water has accumulated on the moisture-absorbing sponge board 20 based on the feedback signals from the water immersion detection sensor 36. If a large amount of water has accumulated on the moisture-absorbing sponge board 20 in a particular air inlet dehumidification assembly 2 and is detected by the water immersion detection sensor 36, the air extraction pump 3, the first motor 11, the second motor 34, and the solenoid valve of the particular air inlet dehumidification assembly 2 can be controlled to perform corresponding actions, thereby automatically performing a drying and dehumidification operation on the moisture-absorbing sponge board 20 in the particular air inlet dehumidification assembly 2.

[0059] The controller detects the temperature and humidity values ​​inside the incoming switch cabinet unit and the capacitor compensation cabinet unit through temperature sensors and humidity sensors. If the temperature value of the incoming switch cabinet unit or the capacitor compensation cabinet unit is greater than the preset temperature threshold, or the humidity value of the incoming switch cabinet unit or the capacitor compensation cabinet unit is greater than the preset humidity threshold, it can control one or two groups of air inlet dehumidification components 2 to operate, and automatically realize the heat dissipation, cooling and dehumidification work of the independent unit of the low-voltage cabinet.

[0060] Of course, temperature sensors and humidity sensors can also be installed in the outgoing switch cabinet units to monitor their temperature and humidity values ​​in real time, and the controller can be used to control the operation of the air inlet dehumidification component 2 to automatically achieve ventilation and heat dissipation of the low-voltage cabinet center line switch cabinet unit, the outgoing switch cabinet unit, and the capacitor compensation cabinet unit. Since how to automatically control the fan for ventilation and heat dissipation by detecting the temperature and humidity of the low-voltage cabinet is a conventional technical means in the field, it will not be described in detail here.

[0061] By providing two sets of air inlet and dehumidification components and connecting the other end of the air inlet pipe 4 to the inner cavity of the cabinet, the two sets of air inlet and dehumidification components can actually be seen as the air inlet and outlet of the low-pressure cabinet. Since the air inlet and dehumidification components are equipped with a moisture-absorbing sponge board and a dust-proof board, the air entering the cabinet can be effectively dusted and dehumidified on the basis of ventilating the interior of the cabinet.

[0062] When the cabinet 1 includes an incoming switchgear unit, an outgoing switchgear unit, and a capacitor compensation unit arranged in sequence, the air extraction pump 3 is installed at the top of the cabinet 1, located on top of the outgoing switchgear unit, and the other end of the air inlet pipe 4 is connected to the inner cavity of the outgoing switchgear unit. In this way, when the air extraction pump 3 is in operation, air can flow into one set of air inlet dehumidification components and then flow out of the other set of air inlet dehumidification components, achieving ventilation and heat dissipation of the incoming switchgear unit, the outgoing switchgear unit, and the capacitor compensation unit within the cabinet.

[0063] This embodiment describes in detail the working principle of the compact low-voltage cabinet with an assembled structure, as follows:

[0064] When the low-voltage cabinet is dissipating heat, the vacuum pump 3 is started by the controller, the first solenoid valve 6 is closed, and the shell 8 on the left is closed by the induced draft closing component. The outside air first enters through the shell 8 on the right, and the vacuum pump 3 drives the hot air inside the cabinet 1 and then is discharged through the shell 8 on the left. When the outside air enters through the shell 8 on the right, the dustproof plate 22 is used to prevent dust, and the moisture in the air is absorbed by the hygroscopic sponge plate 20, thereby processing the dust and moisture in the air. When a large amount of water accumulates on the hygroscopic sponge plate 20 on the right, the excess water will be detected by the water immersion detection sensor 36, and the water immersion detection sensor The sensor feeds back the signal to the controller, and the controller closes the shell 8 on the right by controlling the action of the draft closing component, and the controller controls the first solenoid valve 6 to close, and the second solenoid valve 5 to open. At this time, the outside air will enter through the shell 8 on the left, and the hot air absorbed by the vacuum pump 3 will enter the shell 8 on the right through the air supply pipe 7. The hot air will dry the hygroscopic sponge board 20 on the right, and then dehumidification treatment can be performed. When the hygroscopic sponge board 20 on the left accumulates moisture, hot air drying is performed according to the above principle, thereby forming a virtuous cycle to ensure the normal operation of the electrical structure in the cabinet 1.

[0065] When a housing 8 needs to be closed, the controller starts the first motor 11. When the first motor 11 is working, it will drive the driving gear 10 to rotate. Since the rotating ring gear 23 is engaged with the driving gear 10, it will drive the rotating ring gear 23 to rotate. Since the bevel gear ring 24 is engaged with the driving bevel gear 26, it will drive the blades 27 to rotate. When the blades 27 rotate, not only the amount of air intake can be changed, but also the current housing 8 can be closed, so that the wet moisture-absorbing sponge plate 20 can be dried.

[0066] When the second motor 34 is working, the brush plate 38 will be driven by the second belt 14 to move forward and backward. When the brush plate 38 moves, the impurities attached to the dustproof plate 22 will be brushed off, so that the impurities fall into the dust collecting shell 12 by their own gravity.

[0067] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A low-voltage cabinet with a compact assembly structure, comprising a cabinet body, characterized in that: An air pump is installed on the top of the cabinet, the air inlet end of the air pump is fixedly connected to an air inlet pipe, and two sets of air inlet dehumidification components are fixedly installed on the back of the cabinet; The air inlet dehumidification assembly includes a shell, an air inlet end of the shell is fixedly installed with a dustproof plate, an inner middle part of the shell is installed with a moisture-absorbing sponge plate, an air outlet end of the shell is installed with an air induced closing mechanism for closing the air outlet end, an air outlet end of the shell is fixedly installed with a mounting bar, an inner middle part of the mounting bar is fixedly installed with a mounting sleeve, a rotary joint is rotatably embedded on the mounting sleeve, one end of the rotary joint is rotatably connected to an air supply pipe, and the other end of the rotary joint is fixedly connected to the air outlet end of the air pump through an air supply pipe, a first solenoid valve is installed on the left air supply pipe, and a second solenoid valve is fixedly installed on the right air supply pipe; The draft closing mechanism includes a first motor, which is fixedly mounted on the shell, and the output end of the first motor is fixedly connected to a driving gear. The outer surface of the shell is rotatably mounted with a rotating ring gear, and the rotating ring gear is engaged with the driving gear. The outer surface of the shell is rotatably mounted with a plurality of annularly distributed first rotating shafts, and the outer surface of the mounting sleeve is rotatably mounted with a plurality of annularly distributed second rotating shafts. Blades are fixedly connected between the corresponding first rotating shafts and the second rotating shafts, and the end of the first rotating shaft is fixedly connected to a driving bevel gear. A bevel gear ring is fixedly mounted on the rotating ring gear, and the bevel gear ring is engaged with the driving bevel gear.

2. The low-voltage cabinet with a compact assembly structure according to claim 1, characterized in that: A water immersion detection sensor is installed at the bottom of the shell.

3. The low-voltage cabinet with a compact assembly structure according to claim 2, characterized in that: The front and rear sides of the moisture-absorbing sponge plate are both provided with water-squeezing rollers, a second motor is fixedly installed on the bottom of the shell, and the front and rear sides of the moisture-absorbing sponge plate are rotatably installed with screws, the output end of the second motor is fixedly connected to the end of one group of screws, the outer surface of the screw is fixedly sleeved with a transmission gear, the two groups of transmission gears are meshed, the outer surface of the screw is threaded with a threaded block, and the water-squeezing roller is rotatably installed on the corresponding threaded block.

4. The low-voltage cabinet with a compact assembly structure according to claim 3, characterized in that: A guide block is rotatably mounted on the end of the squeezing roller away from the threaded block. A limiting rod is slidably penetrated on the guide block. The end of the limiting rod is fixedly connected to the inner wall of the shell.

5. The low-voltage cabinet with a compact assembly structure according to claim 4, characterized in that: The outer surface of the air delivery pipe is fixedly sleeved with a first driven bevel gear, and a transmission rod is rotatably penetrated on the shell, and the bottom of the transmission rod is fixedly connected with a first driving bevel gear, and the first driving bevel gear is meshed with the first driven bevel gear. The top of the transmission rod is fixedly connected with a first driven pulley, and the top of the front screw rod is fixedly connected with the first driving pulley. A first belt is tensionedly sleeved between the first driving pulley and the first driven pulley, and a plurality of annularly distributed jet branch pipes are fixedly connected to the air delivery pipe.

6. The low-voltage cabinet with a compact assembly structure according to claim 5, characterized in that: The dustproof plate is rotatably installed with a transmission shaft, one end of the transmission shaft is fixedly connected to the second driven bevel gear, the other end of the transmission shaft is fixedly connected to a cleaning sleeve, and a number of brush plates are installed on the cleaning sleeve. A rotating rod is rotatably installed on the shell, and the bottom of the rotating rod is fixedly connected to the second active bevel gear, and the second active bevel gear is meshed with the second driven bevel gear. The top of the rotating rod is fixedly connected to the second driven pulley, and the top of the rear side screw rod is fixedly connected to the second active pulley, and a second belt is tensioned between the second active pulley and the second driven pulley.

7. The low-voltage cabinet with a compact assembly structure according to claim 6, characterized in that: An interception net is fixedly installed on the air inlet side of the shell, and a dust collecting shell is fixedly installed on the bottom of the shell.

8. The low-voltage cabinet with a compact assembly structure according to claim 7, characterized in that: The cabinet body comprises an incoming switch cabinet unit, an outgoing switch cabinet unit and a capacitor compensation cabinet unit which are arranged in sequence, and two groups of air inlet dehumidification components are respectively located at the bottom of the incoming switch cabinet unit and the capacitor compensation cabinet unit.

9. The low-voltage cabinet with a compact assembly structure according to claim 8, characterized in that: The low-voltage cabinet further includes a controller. The incoming switch cabinet unit and the capacitor compensation cabinet unit are both equipped with a temperature sensor and a humidity sensor, and the temperature sensor and the humidity sensor are both electrically connected to the controller.

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