Draw-out type electric power internet of things switch cabinet

Abstract

The invention relates to the technical field of power switch cabinets, in particular to a draw-out type power internet of things switch cabinet which comprises a switch cabinet body, a plurality of unit drawers are installed in the switch cabinet body in a sliding mode, and the inner wall of each unit drawer is fixedly connected with a dynamic heat dissipation assembly; the dynamic heat dissipation assembly comprises two heat conduction cylinders fixedly connected to the two opposite inner walls of the unit drawer, the two heat conduction cylinders are filled with heat expansion and cold contraction liquid, and the inner walls of the two heat conduction cylinders are connected with control pistons in a sealed and sliding mode. The heat dissipation angle and the heat dissipation intensity of the heat dissipation fan can be dynamically adjusted, so that rapid and accurate heat dissipation can be carried out on the area with the higher temperature in the unit drawer, the heat dissipation efficiency is improved, hot air generated by heat dissipation work can be used for driving the electrostatic adsorption roller to move, and the heat dissipation efficiency is improved. Therefore, the electrostatic adsorption roller can continuously adsorb dust and particles from the strip-shaped exhaust outlet, and the overall heat dissipation and ventilation effect of the switch cabinet is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of power switch cabinets, and in particular to a drawable power Internet of Things switch cabinet. Background Art

[0002] The power IoT switch cabinet is an electric power equipment that integrates sensors, communication modules and intelligent control technologies. It can transmit data to the background system with the help of the IoT network to realize remote monitoring, fault warning and intelligent regulation of power distribution. The power IoT switch cabinet will generate a lot of heat when it is running. At present, the overall heat dissipation and ventilation method is often used. For example, a withdrawable power IoT switch cabinet disclosed in application number CN202010992973.3 can effectively cool the inside of the cabinet. It can also adopt a distributed heat dissipation method, which can perform distributed heat dissipation and ventilation on multiple drawers in the switch cabinet.

[0003] A plurality of drawer units are usually arranged in the power IoT switch cabinet. Although each drawer unit is not completely sealed in the cabinet, the ventilation of the drawer unit will be affected by the installation of multiple switch devices in the drawer unit. At the same time, the electrical components in the drawer unit often need to be selectively opened, that is, the opening state of the electrical components inside the drawer will be different, causing the temperature of each area inside the drawer to change to different degrees and there will be large differences. However, it is difficult for the existing heat dissipation method to dynamically adjust the heat dissipation angle and heat dissipation intensity of each area inside the drawer, and it is impossible to quickly and accurately dissipate the high temperature area inside the drawer, resulting in low overall heat dissipation efficiency of the drawer unit in the switch cabinet. Since the high-temperature air generated in the cabinet will flow to the top of the switch cabinet, an exhaust vent to support heat dissipation and ventilation will be installed on the top of the switch cabinet. The exhaust vent on the top of the switch cabinet usually has a certain gap to ensure the overall ventilation effect. Dust or particulate matter can easily enter the cabinet through the gap in the exhaust vent or directly attach to the exhaust vent. When the switch cabinet is in operation for a long time, the gap in the exhaust vent is easily blocked, affecting the overall heat dissipation and ventilation effect of the switch cabinet. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a withdrawable electric power Internet of Things switch cabinet, which can effectively solve the problem that the prior art cannot quickly and accurately dissipate the heat inside the drawer, resulting in low overall heat dissipation efficiency of the drawer unit in the switch cabinet, and dust easily adheres to the ventilation gap at the top of the switch cabinet, causing blockage of the ventilation gap, affecting the overall heat dissipation and ventilation effect of the switch cabinet.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a withdrawable power Internet of Things switch cabinet, comprising: A switch cabinet, wherein a plurality of unit drawers are slidably installed inside the switch cabinet, and a dynamic heat dissipation component is fixedly connected to the inner wall of each unit drawer; The dynamic heat dissipation component comprises two heat-conducting cylinders fixedly connected to two opposite inner walls of the unit drawer, the interiors of the two heat-conducting cylinders are filled with thermal expansion and contraction liquid, and the inner walls of the two heat-conducting cylinders are sealed and slidably connected with a control piston, the outer wall of each control piston is fixedly connected with a connecting rod, the two opposite inner walls of the switch cabinet are fixedly connected with a limited bracket, the upper and lower ends of the limited bracket are provided with sliding holes, the sliding holes on the two limited brackets are slidably connected with guide rods, the outer peripheral walls of the two guide rods are fixedly connected with magnetic suction connection components, and the outer peripheral walls of the two guide rods are rotatably connected with adapter plates, the two adapter plates are fixedly installed with heat dissipation fans, a plurality of oblique heat dissipation fins are fixedly connected to one side of the heat dissipation fan outlet, a plurality of heat dissipation holes are provided on the side wall of the unit drawer close to the heat dissipation fan, a telescopic frame is slidably connected between two adjacent ends of the two adapter plates, and a heat dissipation self-adjusting component is fixedly connected to the inner side of each of the limit brackets; A plurality of strip-shaped exhaust holes are provided on the top of the switch cabinet, and a dustproof component is fixedly connected to the top surface of the switch cabinet.

[0006] Furthermore, the magnetic connection component includes an electromagnet ring fixedly connected to the outer wall of the guide rod, a ferromagnetic plate is fixedly connected to the end of the connecting rod close to the guide rod, a conductive rod is fixedly connected to the outer wall of the guide rod, a conductive bar is fixedly connected to the inner side of the limit bracket, the conductive rod selectively contacts and slides with the conductive bar, and the conductive bar, conductive rod and electromagnet ring are electrically connected to an external power supply.

[0007] Furthermore, the heat dissipation self-adjusting component includes a variable resistance rod fixedly connected to the inner side of the limit bracket, and a sliding piece is fixedly connected to the outer peripheral wall of the guide rod, and the sliding piece is in contact and sliding cooperation with the variable resistance rod; Among them, the variable resistance rod and the slider constitute a sliding rheostat, and the sliding rheostat, the cooling fan close to one side of the sliding rheostat and the external power supply form a closed series circuit. When the slider moves away from the unit drawer, the resistance of the sliding rheostat in the closed series circuit composed of the sliding rheostat, the cooling fan and the external power supply decreases.

[0008] Furthermore, the dustproof component includes two hanging rails fixedly connected to the top surface of the switch cabinet, the inner sides of the two hanging rails are slidably connected with sliders, the upper end surfaces of the two sliders are fixedly connected with support frames, the upper ends of the support frames are rotatably connected with electrostatic adsorption rollers, the electrostatic adsorption rollers are electrically connected to an external power supply, the electrostatic adsorption rollers are in contact and rolling cooperation with the top surface of the switch cabinet, a rotating shaft is rotatably connected between the two sliders, a plurality of blades are fixedly connected to the middle of the rotating shaft, gears are fixedly connected to both ends of the rotating shaft, a rack plate is fixedly connected to the inner bottom surface of the hanging rails, the gears are meshed and transmitted with the rack plate, and a hot air deflector component is fixedly connected to the inner wall of the switch cabinet below the plurality of blades.

[0009] Furthermore, the hot air deflector component includes two fixed brackets fixedly connected to the inner wall of the switch cabinet, a plurality of rotating rods are rotatably connected between the two fixed brackets, a plurality of outer peripheral walls of the rotating rods are fixedly connected to guide plates, a plurality of lower ends of the guide plates are rotatably connected to synchronous limit frames, a low-speed motor is fixedly installed on the outer wall of one of the fixed brackets, the output end of the low-speed motor is fixedly connected to the end of one of the rotating rods, and two opposite inner walls of the suspension slide rails are fixedly connected to induction plates.

[0010] Furthermore, a PLC controller is fixedly connected to the inner wall of the switch cabinet, and the plurality of induction plates and the low-speed motor are electrically connected to the PLC controller.

[0011] Furthermore, a dust collecting bin is fixedly connected to the upper end of the support frame, the dust collecting bin is arranged in a semicircular cylindrical structure, and the dust collecting bin is located directly below the electrostatic adsorption roller.

[0012] Furthermore, a ventilation hole is opened at the bottom end of the switch cabinet, and a protective filter is fixedly connected to the ventilation hole.

[0013] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: 1. In the present invention, a dynamic heat dissipation component is provided. When there is a temperature difference between the various areas inside the unit drawer, the two adapter plates and the telescopic frame can be driven to swing to a certain extent as a whole, so that the two heat dissipation fans can face the side of the area with a higher temperature inside the unit drawer, that is, the two heat dissipation fans can dynamically adjust the heat dissipation angle, so as to quickly and accurately dissipate the heat of the area with a higher temperature inside the unit drawer; 2. The present invention provides a heat dissipation group adjustment component. When the guide rod moves, it can drive the slide to contact and slide relative to the variable resistance rod synchronously, so that the output power of the heat dissipation fan close to the unit drawer with higher temperature is increased to improve the heat dissipation intensity of the corresponding heat dissipation fan. At the same time, the heat dissipation angle adjustment of the heat dissipation fan can further improve the heat dissipation accuracy and heat dissipation efficiency of the unit drawer with higher temperature. 3. The present invention provides a dustproof component, and the heat dissipation fan absorbs the heat inside the unit drawer and produces hot air to push a plurality of blades, so that the plurality of blades and the rotating shaft start to rotate, and drive the slider to move relative to the suspension slide rail, so that the electrostatic adsorption roller can roll relative to the top surface inside the switch cabinet, so that the electrostatic adsorption roller can be used to adsorb dust and particles attached to the inner side of the strip exhaust hole, thereby preventing dust or particles from clogging the strip exhaust hole and ensuring the overall heat dissipation and ventilation effect of the switch cabinet; 4. The present invention provides a hot air guide component. When the slider moves relative to the suspended slide rail, when the slider moves to the side of the suspended slide rail, a plurality of guide plates can be synchronously driven to rotate in the opposite direction to automatically adjust the wind direction of the hot air, so that the hot air can push a plurality of blades in the opposite direction, so that the slider can move in the opposite direction relative to the suspended slide rail, and then the slider can move back and forth relative to the suspended slide rail, so that the electrostatic adsorption roller can reciprocate and roll in contact with the top surface of the switch cabinet, so as to continuously adsorb dust and particulate matter at the strip exhaust port, and maintain the dust-proof effect of the strip exhaust hole at the top of the switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 3 The cross-sectional view of the switch cabinet in the present invention Figure 1 ; Figure 4 The cross-sectional view of the switch cabinet in the present invention Figure 2 ; Figure 5 It is a schematic diagram of a partial structure of a dynamic heat dissipation component in the present invention; Figure 6 It is a schematic diagram of the partial structure of the limiting bracket in the present invention; Figure 7 It is a cross-sectional view of the structure of the heat-conducting tube part in the present invention; Figure 8 It is a schematic diagram of the heat dissipation fan structure of the present invention; Fig. 9 It is a schematic diagram of the top surface structure of the switch cabinet in the present invention; Fig.10 It is a schematic diagram of a partial structure of a dustproof component in the present invention; Fig.11 It is a schematic diagram of the structure of the suspension slide rail part of the present invention; Fig.12 It is a schematic diagram of a partial structure of the hot air guide component in the present invention.

[0016] Figure numerals: 1, switch cabinet; 2, unit drawer; 3, dynamic heat dissipation component; 31, heat-conducting cylinder; 32, control piston; 33, connecting rod; 34, limit bracket; 35, sliding hole; 36, guide rod; 37, adapter plate; 38, cooling fan; 39, oblique cooling fins; 310, cooling hole; 311, telescopic frame; 4, magnetic connection component; 41, electromagnet ring; 42, ferromagnetic plate; 43, conductive rod; 44, conductive strip; 5, heat dissipation self-adjusting component; 51 , variable resistor rod; 52, sliding piece; 6, strip exhaust hole; 7, dustproof component; 71, hanging slide rail; 72, slider; 73, support frame; 74, electrostatic adsorption roller; 75, rotating shaft; 76, blade; 77, gear; 78, rack plate; 8, hot air guide component; 81, fixed bracket; 82, rotating rod; 83, guide plate; 84, synchronous limit frame; 85, low-speed motor; 86, induction plate; 9, PLC controller; 10, dust collection bin; 11, vent. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention will be further described below in conjunction with the embodiments.

[0019] Example: Refer to Figures 1 to 12 , a withdrawable power Internet of Things switch cabinet, comprising: The switch cabinet 1 has a vent 11 at the bottom, and a protective filter is fixedly connected to the vent 11. The protective filter is made of stainless steel, which is corrosion-resistant and can intercept fine particles. A plurality of unit drawers 2 are slidably installed inside the switch cabinet 1, and a dynamic heat dissipation component 3 is fixedly connected to the inner wall of each unit drawer 2; the dynamic heat dissipation component 3 includes two heat-conducting cylinders 31 fixedly connected to two opposite inner walls of the unit drawer 2, and the insides of the two heat-conducting cylinders 31 are filled with thermal expansion and contraction liquid, and the inner walls of the two heat-conducting cylinders 31 are sealed and slidably connected to control pistons 32, and the outer wall of each control piston 32 is fixed A connecting rod 33 is connected, and two opposite inner walls of the switch cabinet 1 are fixedly connected to limit brackets 34, and sliding holes 35 are provided at both upper and lower ends of the limit brackets 34. Guide rods 36 are slidably connected to the sliding holes 35 on the two limit brackets 34, and adapter plates 37 are rotatably connected to the outer peripheral walls of the two guide rods 36. Cooling fans 38 are fixedly installed on the two adapter plates 37, and a plurality of oblique cooling fins 39 are fixedly connected to one side of the air outlet of the cooling fan 38. A plurality of cooling holes 310 are provided on the side wall of the unit drawer 2 close to the cooling fan 38, and a telescopic frame 311 is slidably connected between the two adjacent ends of the two adapter plates 37; Specifically, the heat-conducting tube 31 is made of high-purity oxygen-free copper material, which has high thermal conductivity and corrosion resistance, and can ensure the rapid thermal response and long-term stability of the thermal expansion and contraction liquid in the heat-conducting tube 31. The thermal expansion and contraction liquid uses PMX200 methyl silicone oil, which has the characteristics of low viscosity and high expansion coefficient, and is odorless and non-toxic, with excellent chemical stability and electrical insulation. It can be used stably for a long time at -50°C~180°C, so that the heat-conducting tube 31 can efficiently transfer the heat inside the unit drawer 2 to the thermal expansion and contraction liquid; Specifically, when the two adapter plates 37 and the telescopic frame 311 are tilted at a certain angle as a whole, the two adapter plates 37 can be telescopically moved relative to the telescopic frame 311, that is, the overall length of the two adapter plates 37 and the telescopic frame 311 can be changed to adapt to the dynamic adjustment of the heat dissipation angle of the two heat dissipation fans 38; When there is a temperature difference between the various regions inside the unit drawer 2, the two heat-conducting tubes 31 receive different amounts of heat, so that the thermal expansion and contraction liquids filled in the two heat-conducting tubes 31 produce different expansion states due to different degrees of heating. The thermal expansion and contraction liquid in the heat-conducting tube 31 on the side with higher regional temperature expands more, so that the strokes of the two control pistons 32 in the two heat-conducting tubes 31 are different, and then the two connecting rods 33 will push the two guide rods 36 to move different distances, so that the two adapter plates 37 and the telescopic frame 311 as a whole can produce a certain amplitude of swing, so that the two cooling fans 38 can move toward the guide rods 36 for a longer distance, that is, the side with higher temperature inside the unit drawer 2, that is, the two cooling fans 38 can dynamically adjust the cooling angle, so as to quickly and accurately cool the area with higher temperature inside the unit drawer 2, thereby improving the cooling efficiency of the unit drawer 2, and the cooling fan 38 close to the area with lower temperature of the unit drawer 2 has a reduced output power, so as to save overall cooling energy consumption; The outer peripheral walls of the two guide rods 36 are fixedly connected with a magnetic connection component 4, and the magnetic connection component 4 includes an electromagnet ring 41 fixedly connected to the outer peripheral wall of the guide rod 36, and the end of the connecting rod 33 close to the guide rod 36 is fixedly connected with a ferromagnetic plate 42, and the outer peripheral wall of the guide rod 36 is fixedly connected with a conductive rod 43, and the inner side of the limit bracket 34 is fixedly connected with a conductive bar 44. It should be noted that the length of the conductive bar 44 is less than the sliding hole 35, and the conductive rod 43 selectively contacts and slides with the conductive bar 44. The conductive bar 44, the conductive rod 43, and the electromagnet ring 41 are electrically connected to the external power supply; During the process of pulling out the unit drawer 2, the conductive rod 43 and the conductive strip 44 will first maintain contact, and the connecting rod 33 will continue to drive the ferromagnetic plate 42 to move until the conductive rod 43 is no longer in contact with the conductive strip 44, the electromagnet ring 41 is powered off and loses its magnetic attraction to the ferromagnetic plate 42. At this time, the connecting rod 33 and the guide rod 36 are separated as a whole, so that the unit drawer 2 can be completely pulled out; during the process of pushing the unit drawer 2 in, the unit drawer 2 is continuously pushed in, that is, when the connecting rod 33 continues to push the ferromagnetic plate 42 to move, the conductive rod 43 will contact the conductive strip 44 and make the electromagnet ring 41 pass. Electricity is supplied to the electromagnet ring 41 to restore the magnetic attraction to the ferromagnetic plate 42, so that the connecting rod 33 can be connected to the guide rod 36 and push the guide rod 36 to move, thereby realizing the automatic connection and separation of the connecting rod 33 and the guide rod 36, ensuring the indirect connection and coordination between the unit drawer 2 and the limit bracket 34. When in use, the dynamic heat dissipation adjustment of the unit drawer 2 can be realized through the magnetic attraction coordination between the connecting rod 33, the electromagnet ring 41 and the ferromagnetic plate 42 arranged in the unit drawer 2, and at the same time will not affect the extraction and pushing operation of the unit drawer 2 relative to the switch cabinet 1.

[0020] Each limit bracket 34 is fixedly connected to a heat dissipation self-adjusting component 5 on the inner side thereof, and the heat dissipation self-adjusting component 5 comprises a variable resistor rod 51 fixedly connected to the inner side of the limit bracket 34, and a sliding piece 52 is fixedly connected to the outer peripheral wall of the guide rod 36, and the sliding piece 52 is in contact and sliding cooperation with the variable resistor rod 51; wherein, the variable resistor rod 51 and the sliding piece 52 constitute a sliding rheostat, and the sliding rheostat, the heat dissipation fan 38 close to one side of the sliding rheostat and the external power supply form a closed series circuit, and when the sliding piece 52 moves away from the unit drawer 2, the resistance value of the sliding rheostat in the closed series circuit formed by the sliding rheostat, the heat dissipation fan 38 and the external power supply decreases; When the guide rod 36 moves, it can drive the slider 52 to move synchronously, so that the slider 52 can slide a certain distance relative to the variable resistor rod 51 in contact. The higher the temperature of the area inside the unit drawer 2, the longer the movement stroke of the corresponding control piston 32 and the guide rod 36, and the longer the sliding distance of the slider 52 relative to the variable resistor rod 51 in the direction away from the guide rod 36, so that the resistance of the sliding rheostat composed of the variable resistor rod 51 and the slider 52 in the closed series circuit composed of the sliding rheostat, the cooling fan 38 close to the corresponding sliding rheostat and the external power supply is reduced, so that the total resistance of the closed series circuit is reduced and the total current is increased, that is, the input current of the cooling fan 38 close to the corresponding sliding rheostat is increased, so that the output power of the cooling fan 38 close to the higher temperature area of ​​the unit drawer 2 is increased, so as to improve the cooling intensity of the corresponding cooling fan 38, and at the same time, with the cooling angle adjustment of the cooling fan 38, the cooling accuracy and cooling efficiency of the higher temperature area inside the unit drawer 2 can be further improved.

[0021] A plurality of strip-shaped exhaust holes 6 are provided on the top of the switch cabinet 1. A dustproof component 7 is fixedly connected to the inner top surface of the switch cabinet 1. The dustproof component 7 includes two hanging slide rails 71 fixedly connected to the inner top surface of the switch cabinet 1. Slide blocks 72 are slidably connected to the inner sides of the two hanging slide rails 71. The upper end surfaces of the two slide blocks 72 are fixedly connected to support frames 73. The upper end of the support frame 73 is rotatably connected to an electrostatic adsorption roller 74. The electrostatic adsorption roller 74 is electrically connected to an external power supply. The working voltage of the electrostatic adsorption roller 74 is DC5kV~10kV. The electrostatic adsorption roller 74 is provided with a DC8kV voltage through an external power supply, which can efficiently adsorb dust particles under low energy consumption. The electrostatic adsorption roller 74 is in contact and rolling cooperation with the inner top surface of the switch cabinet 1. A dust collecting bin 10 is fixedly connected to the upper end of the support frame 73. The dust collecting bin 10 is arranged in a semicircular cylindrical structure, and the dust collecting bin 10 is located directly below the electrostatic adsorption roller 74. Specifically, the electrostatic adsorption roller 74 generates static electricity on its surface through an electrostatic generator; Specifically, during operation, the electrostatic adsorption roller 74 can be periodically controlled to be powered off, so that the electrostatic adsorption roller 74 loses its adsorption of dust and particles, and then the dust and particles naturally fall into the dust collection bin 10 by their own gravity, so as to maintain the cleanliness of the electrostatic adsorption roller 74 itself and its adsorption performance of dust and particles, which is conducive to ensuring the dust-proof effect of the strip exhaust hole 6; A rotating shaft 75 is rotatably connected between the two sliders 72, a plurality of blades 76 are fixedly connected to the middle of the rotating shaft 75, gears 77 are fixedly connected to both ends of the rotating shaft 75, a rack plate 78 is fixedly connected to the inner bottom surface of the hanging slide rail 71, and the gear 77 and the rack plate 78 are meshed and transmission-coordinated; A plurality of cooling fans 38 absorb the heat inside the unit drawer 2 and produce hot air, and the hot air is discharged to the top of the switch cabinet 1 through the oblique cooling fins 39. In this process, the hot air first passes through a plurality of guide plates 83, and then is discharged to a plurality of blades 76 and pushes a plurality of blades 76, so that the plurality of blades 76 and the rotating shaft 75 start to rotate, and the meshing cooperation of the gear 77 and the rack plate 78 enables the rotating shaft 75 and the slider 72 at its end to move relative to the hanging slide rail 71, thereby driving the support frame 73 and the electrostatic adsorption roller 74 to move, so that the electrostatic adsorption roller 74 can roll relative to the inner top surface of the switch cabinet 1, so that the electrostatic adsorption roller 74 can be used to adsorb dust and particles attached to the inner side of the strip exhaust hole 6, thereby preventing dust or particles from clogging the strip exhaust hole 6, and ensuring the overall heat dissipation and ventilation effect of the switch cabinet 1; A hot air guide component 8 is fixedly connected to the inner wall of the switch cabinet 1 at a position below the plurality of blades 76. The hot air guide component 8 includes two fixed brackets 81 fixedly connected to the inner wall of the switch cabinet 1. A plurality of rotating rods 82 are rotatably connected between the two fixed brackets 81. The outer peripheral walls of the plurality of rotating rods 82 are fixedly connected to guide plates 83. The lower ends of the plurality of guiding plates 83 are rotatably connected to synchronous limit frames 84. A low-speed motor 85 is fixedly installed on the outer wall of one of the fixed brackets 81. The output end of the low-speed motor 85 is fixedly connected to the end of one of the rotating rods 82. The two opposite inner walls of the suspension slide rail 71 are fixedly connected to induction plates 86. The inner wall of the switch cabinet 1 is fixedly connected to a PLC controller 9. The plurality of induction plates 86 and the low-speed motor 85 are electrically connected to the PLC controller 9. Specifically, the induction plate 86 is made of lead zirconate titanate piezoelectric ceramic material, which has excellent piezoelectric response and temperature resistance. When the induction plate 86 is compressed, it will quickly generate an electrical signal. The PLC controller 9 can monitor and receive the electrical signal generated by the induction plate 86 when it is compressed. When the PLC controller 9 detects that the induction plate 86 generates an electrical signal, the PLC controller 9 sends a control instruction to the low-speed motor 85, so that the low-speed motor 85 drives the rotating rod 82 to rotate in the opposite direction. When the slider 72 contacts and squeezes the induction plate 86 made of piezoelectric material, the PLC controller 9 can monitor the changes in the electrical signal generated by the pressure on the receiving induction plate 86 and control the operation of the low-speed motor 85, so that the low-speed motor 85 drives one of the rotating rods 82 to rotate in the opposite direction, so that the several guide plates 83 rotate in the opposite direction synchronously under the limiting action of the synchronous limit frame 84, and then the wind direction of the hot air can be automatically adjusted, so that the hot air can push several blades 76 in the opposite direction to realize the reciprocating movement of the slider 72 relative to the suspended slide rail 71, and then the electrostatic adsorption roller 74 can reciprocatingly contact and roll relative to the top surface of the switch cabinet 1, so as to continuously adsorb dust and particulate matter at the strip exhaust hole 6 and maintain the dust-proof effect of the strip exhaust hole 6.

[0022] The working principle of the present invention is as follows: If the switch states of the electrical components inside the unit drawer 2 are different, that is, the operating states of the electrical components are different, resulting in different temperatures in various areas inside the unit drawer 2, the two heat-conducting tubes 31 receive different amounts of heat, so that the thermal expansion and contraction liquids filled in the two heat-conducting tubes 31 have different expansion states due to different degrees of heat exposure, and the thermal expansion and contraction liquid in the heat-conducting tube 31 on the side with higher regional temperature expands more, so that the strokes of the two control pistons 32 in the two heat-conducting tubes 31 are different, and then the two connecting rods 33 will push the two guide rods 36 to move different distances, so that the two adapter plates 37 and the telescopic frame 311 can swing to a certain extent as a whole, so that the two cooling fans 38 can move a longer distance toward the guide rods 36, that is, the side with a higher temperature inside the unit drawer 2; When the guide rod 36 moves, it can drive the slide 52 to move synchronously, so that the slide 52 can contact and slide a certain distance relative to the variable resistor rod 51. The higher the temperature of the area in the unit drawer 2, the longer the movement stroke of the corresponding control piston 32 and the guide rod 36, and the longer the sliding distance of the slide 52 relative to the variable resistor rod 51 in the direction away from the guide rod 36, so that the resistance of the sliding rheostat composed of the variable resistor rod 51 and the slide 52 in the closed series circuit composed of the sliding rheostat, the cooling fan 38 close to the corresponding sliding rheostat and the external power supply is reduced, so that the total resistance of the closed series circuit is reduced and the total current is increased, that is, the input current of the cooling fan 38 close to the corresponding sliding rheostat is increased, so that the output power of the cooling fan 38 close to the higher temperature area of ​​the unit drawer 2 is increased, so as to improve the cooling intensity of the corresponding cooling fan 38; During the process of pulling out the unit drawer 2, the conductive rod 43 and the conductive strip 44 will first maintain a contact state, that is, the electromagnet ring 41 is in a powered state and has a magnetic attraction to the ferromagnetic plate 42. The unit drawer 2 continues to be pulled out, that is, the connecting rod 33 continues to drive the ferromagnetic plate 42 to move, until the conductive rod 43 is no longer in contact with the conductive strip 44, the electromagnet ring 41 is powered off and loses its magnetic attraction to the ferromagnetic plate 42, so that the unit drawer 2 can be completely pulled out; during the process of pushing the unit drawer 2 in, the connecting rod 33 will first push the ferromagnetic plate 42 to move close to the guide rod 36, so that the ferromagnetic plate 42 first contacts the electromagnet ring 41, and when the unit drawer 2 continues to be pushed in, that is, the connecting rod 33 continues to push the ferromagnetic plate 42 to move, the conductive rod 43 will contact the conductive strip 44 and energize the electromagnet ring 41, so that the electromagnet ring 41 restores the magnetic attraction to the ferromagnetic plate 42, and then the connecting rod 33 can drive the guide rod 36 to move, thereby realizing the automatic connection and separation of the connecting rod 33 and the guide rod 36; Multiple cooling fans 38 absorb the heat inside the unit drawer 2 and produce hot air, and the hot air is discharged to the top of the switch cabinet 1 through the oblique cooling fins 39. In this process, the hot air first passes through multiple guide plates 83, and then is discharged to a plurality of blades 76 and pushes the plurality of blades 76, so that the plurality of blades 76 and the rotating shaft 75 start to rotate, and the meshing cooperation of the gear 77 and the rack plate 78 enables the rotating shaft 75 and the slider 72 at its end to move relative to the hanging slide rail 71, thereby driving the support frame 73 and the electrostatic adsorption roller 74 to move, so that the electrostatic adsorption roller 74 can roll relative to the inner top surface of the switch cabinet 1, so as to use the electrostatic adsorption roller 74 to adsorb dust and particulate matter attached to the inner side of the strip exhaust hole 6; During the movement of the slider 72 relative to the suspended slide rail 71, when the slider 72 contacts and squeezes the induction plate 86 made of piezoelectric material, the PLC controller 9 can monitor the changes in the electrical signal received from the induction plate 86 and control the operation of the low-speed motor 85, so that the low-speed motor 85 drives one of the rotating rods 82 to rotate in the opposite direction, so that the several guide plates 83 rotate in the opposite direction synchronously under the limiting action of the synchronous limit frame 84, and then the wind direction of the hot air can be automatically adjusted, so that the hot air can push several blades 76 in the opposite direction, so as to realize the reciprocating movement of the slider 72 relative to the suspended slide rail 71, and then the electrostatic adsorption roller 74 can reciprocatingly contact and roll relative to the top surface of the switch cabinet 1, so as to continuously adsorb dust and particulate matter at the strip exhaust hole 6.

[0023] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A withdrawable power Internet of Things switch cabinet, characterized in that: include: A switch cabinet (1), wherein a plurality of unit drawers (2) are slidably mounted inside the switch cabinet (1), and a dynamic heat dissipation component (3) is fixedly connected to the inner wall of each unit drawer (2); The dynamic heat dissipation component (3) comprises two heat-conducting tubes (31) fixedly connected to two opposing inner walls of the unit drawer (2), the interiors of the two heat-conducting tubes (31) are filled with a thermal expansion and contraction liquid, and the inner walls of the two heat-conducting tubes (31) are sealed and slidably connected to a control piston (32), and the outer wall of each control piston (32) is fixedly connected to a connecting rod (33), and the two opposing inner walls of the switch cabinet (1) are fixedly connected to a limit bracket (34), and the limit bracket (34) is provided with a sliding hole (35) at both upper and lower ends, and the sliding holes (35) on the two limit brackets (34) are slidably connected to a guide rod (36), and the two The outer peripheral walls of the guide rods (36) are fixedly connected with magnetic connection components (4), and the outer peripheral walls of the two guide rods (36) are rotatably connected with adapter plates (37), and the two adapter plates (37) are fixedly installed with cooling fans (38), and one side of the air outlet of the cooling fan (38) is fixedly connected with a plurality of oblique cooling fins (39), and the side wall of the unit drawer (2) close to the cooling fan (38) is provided with a plurality of cooling holes (310), and a telescopic frame (311) is slidably connected between two adjacent ends of the two adapter plates (37), and the inner side of each of the limiting brackets (34) is fixedly connected with a cooling self-adjusting component (5); A plurality of strip-shaped exhaust holes (6) are provided at the top of the switch cabinet (1), and a dustproof component (7) is fixedly connected to the inner top surface of the switch cabinet (1).

2. A withdrawable power Internet of Things switch cabinet according to claim 1, characterized in that: The magnetic connection component (4) comprises an electromagnet ring (41) fixedly connected to the outer peripheral wall of the guide rod (36); a ferromagnetic plate (42) is fixedly connected to the end of the connection rod (33) close to the guide rod (36); a conductive rod (43) is fixedly connected to the outer peripheral wall of the guide rod (36); a conductive bar (44) is fixedly connected to the inner side of the limit bracket (34); the conductive bar (43) selectively contacts and slides with the conductive bar (44); and the conductive bar (44), the conductive rod (43) and the electromagnet ring (41) are electrically connected to an external power supply.

3. The withdrawable power Internet of Things switch cabinet according to claim 1 is characterized in that: The heat dissipation self-adjusting component (5) comprises a variable resistance rod (51) fixedly connected to the inner side of the limit bracket (34); a sliding plate (52) is fixedly connected to the outer peripheral wall of the guide rod (36); the sliding plate (52) is in contact and sliding cooperation with the variable resistance rod (51); The variable resistor rod (51) and the slider (52) form a sliding rheostat, and the sliding rheostat, a cooling fan (38) close to one side of the sliding rheostat, and an external power supply form a closed series circuit. When the slider (52) moves away from the unit drawer (2), the resistance of the sliding rheostat in the closed series circuit formed by the sliding rheostat, the cooling fan (38) and the external power supply decreases.

4. The withdrawable power Internet of Things switch cabinet according to claim 1 is characterized in that: The dustproof component (7) comprises two hanging slide rails (71) fixedly connected to the inner top surface of the switch cabinet (1), the inner sides of the two hanging slide rails (71) are slidably connected to sliders (72), the upper end surfaces of the two sliders (72) are fixedly connected to support frames (73), the upper ends of the support frames (73) are rotatably connected to electrostatic adsorption rollers (74), the electrostatic adsorption rollers (74) are electrically connected to an external power supply, and the electrostatic adsorption rollers (74) are in rolling contact with the inner top surface of the switch cabinet (1). A rotating shaft (75) is rotatably connected between the two sliders (72), a plurality of blades (76) are fixedly connected to the middle of the rotating shaft (75), gears (77) are fixedly connected to both ends of the rotating shaft (75), a rack plate (78) is fixedly connected to the inner bottom surface of the suspended slide rail (71), the gear (77) and the rack plate (78) are meshed and transmission-coordinated, and a hot air guide component (8) is fixedly connected to the inner wall of the switch cabinet (1) at a position below the plurality of blades (76).

5. The withdrawable power Internet of Things switch cabinet according to claim 4 is characterized in that: The hot air deflector component (8) comprises two fixed brackets (81) fixedly connected to the inner wall of the switch cabinet (1), a plurality of rotating rods (82) are rotatably connected between the two fixed brackets (81), a plurality of outer peripheral walls of the plurality of rotating rods (82) are fixedly connected to deflector plates (83), and a plurality of lower ends of the plurality of deflector plates (83) are rotatably connected to synchronous limit frames (84), a low-speed motor (85) is fixedly mounted on the outer wall of one of the fixed brackets (81), an output end of the low-speed motor (85) is fixedly connected to the end of one of the rotating rods (82), and two opposite inner walls of the suspension slide rail (71) are fixedly connected to induction plates (86).

6. The withdrawable power Internet of Things switch cabinet according to claim 5 is characterized in that: A PLC controller (9) is fixedly connected to the inner wall of the switch cabinet (1), and the plurality of induction plates (86) and the low-speed motor (85) are electrically connected to the PLC controller (9).

7. The withdrawable power Internet of Things switch cabinet according to claim 4 is characterized in that: The upper end of the support frame (73) is fixedly connected to a dust collecting bin (10), the dust collecting bin (10) is arranged in a semicircular cylindrical structure, and the dust collecting bin (10) is located directly below the electrostatic adsorption roller (74).

8. The withdrawable power Internet of Things switch cabinet according to claim 1 is characterized in that: A vent (11) is provided at the bottom of the switch cabinet (1), and a protective filter is fixedly connected to the vent (11).

Images