A draw-out type power Internet of Things switchgear

Abstract

The present invention relates to the technical field of power switch cabinets, and particularly relates to a draw-out power Internet of Things switch cabinet, which includes a switch cabinet. A number 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 includes two heat conduction cylinders fixedly connected to two opposite inner walls of the unit drawer. Heat expansion and contraction liquid is filled in both of the two heat conduction cylinders, and control pistons are hermetically and slidably connected to the inner walls of the two heat conduction cylinders. The present invention can dynamically adjust the heat dissipation angle and heat dissipation intensity of the heat dissipation fan so as to quickly and accurately dissipate heat from the area with a higher temperature inside the unit drawer, improve the heat dissipation efficiency, and can use the hot air generated by the heat dissipation work to drive the movement of the electrostatic adsorption roller, so that the electrostatic adsorption roller can continuously adsorb dust and particulate matter at the strip-shaped air outlet, ensuring the overall heat dissipation and ventilation effect of the switch cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of power switch cabinets, and particularly relates to a draw-out power Internet of Things switch cabinet. Background Art

[0002] A power Internet of Things switch cabinet is a power device integrating sensors, communication modules, and intelligent control technologies. It can transmit data to the background system through the Internet of Things network to achieve remote monitoring, fault warning, and intelligent regulation of power distribution. When the power Internet of Things switch cabinet is operating, a relatively large amount of heat will be generated inside it. Currently, the overall heat dissipation ventilation method is often used. For example, a draw-out power Internet of Things switch cabinet disclosed in Application No. CN202010992973.3 can effectively cool down the inside of the cabinet body, or the decentralized heat dissipation method can be used to perform decentralized heat dissipation ventilation on multiple drawers in the switch cabinet.

[0003] Multiple drawer units are usually arranged inside the power Internet of Things switch cabinet. Although each drawer unit is not completely sealed inside the cabinet body, the ventilation of the drawer unit will be affected because multiple switching devices are installed in it. At the same time, the electrical components in the drawer unit often need to be selectively turned on, that is, the on states of the electrical components inside the drawer will be different, resulting in different degrees of temperature changes and large differences in the temperatures of each area inside the drawer. However, the existing heat dissipation methods are difficult to dynamically adjust the heat dissipation angles and heat dissipation intensities of each area inside the drawer, and cannot quickly and accurately dissipate heat from the areas with higher temperatures inside the drawer, resulting in a lower overall heat dissipation efficiency of the drawer units in the switch cabinet;

[0004] Since the high-temperature gas generated inside the cabinet will flow to the top of the switch cabinet, an exhaust port for supporting heat dissipation ventilation is equipped at the top of the switch cabinet. In order to ensure the overall ventilation effect, a certain gap is usually left at the exhaust port at the top of the switch cabinet. However, dust or particulate matter is extremely easy to enter the cabinet body from the gap of the exhaust port or directly adhere to the exhaust port. In the case of long-term operation and use of the switch cabinet, it is easy to cause blockage of the exhaust port gap, affecting the overall heat dissipation ventilation effect of the switch cabinet. Summary of the Invention

[0005] Aiming at the above-mentioned disadvantages of the prior art, the present invention provides a draw-out power Internet of Things switch cabinet, which can effectively solve the problems in the prior art that it is impossible to quickly and accurately dissipate heat inside the drawer, resulting in a lower overall heat dissipation efficiency of the drawer units in the switch cabinet, and dust is easy to adhere to the ventilation port gap at the top of the switch cabinet, resulting in blockage of the ventilation port gap and affecting the overall heat dissipation ventilation effect of the switch cabinet.

[0006] To achieve the above object, the present invention is realized through the following technical solutions:

[0007] The present invention provides a draw-out power Internet of Things switch cabinet, including:

[0008] Switchgear, wherein a number of unit drawers are slidably installed inside the switchgear, and a dynamic heat dissipation component is fixedly connected to the inner wall of each unit drawer;

[0009] The dynamic heat dissipation component includes two heat conduction cylinders fixedly connected to two opposite inner walls of the unit drawer. Both of the two heat conduction cylinders are filled with a thermo - expansion and contraction liquid, and a control piston is hermetically and slidably connected to the inner wall of each of the two heat conduction cylinders. A connecting rod is fixedly connected to the outer wall of each control piston. Two opposite inner walls of the switchgear are fixedly connected with limit brackets. Slide holes are opened at both the upper and lower ends of each limit bracket. Guide rods are slidably connected to the slide holes of the two limit brackets. Magnetic connection components are fixedly connected to the outer peripheral walls of the two guide rods. Transfer plates are rotatably connected to the outer peripheral walls of the two guide rods. Heat dissipation fans are fixedly installed on the two transfer plates. A number of oblique heat dissipation fins are fixedly connected to the side of the heat dissipation fan where the air outlet is located. A number of heat dissipation holes are opened 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 transfer plates. A heat dissipation self - adjustment component is fixedly connected to the inner side of each limit bracket;

[0010] A number of strip - shaped exhaust holes are opened at the top of the switchgear, and a dust - proof component is fixedly connected to the inner top surface of the switchgear.

[0011] Furthermore, the magnetic connection component includes an electromagnet ring fixedly connected to the outer peripheral 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 peripheral wall of the guide rod. A conductive strip is fixedly connected to the inner side of the limit bracket. The conductive rod selectively contacts and slidably cooperates with the conductive strip. The conductive strip, the conductive rod, the electromagnet ring and an external power supply are electrically connected.

[0012] Furthermore, the heat dissipation self - adjustment component includes a variable resistance rod fixedly connected to the inner side of the limit bracket. A sliding piece is fixedly connected to the outer peripheral wall of the guide rod. The sliding piece contacts and slidably cooperates with the variable resistance rod;

[0013] Wherein, the variable resistance rod and the sliding piece form a sliding rheostat. The sliding rheostat, the heat dissipation fan on the side close to the sliding rheostat and the external power supply form a closed series circuit. During the process of the sliding piece moving away from the unit drawer, the resistance value of the sliding rheostat in the closed series circuit composed of the sliding rheostat, the heat dissipation fan and the external power supply decreases.

[0014] Further, the dust-proof component includes two hanging slide rails fixedly connected to the inner top surface of the switch cabinet. Sliders are slidably connected to the inner sides of the two hanging slide rails. A support frame is fixedly connected to the upper end surfaces of the two sliders. An electrostatic adsorption roller is rotatably connected to the upper end of the support frame. The electrostatic adsorption roller is electrically connected to an external power supply. The electrostatic adsorption roller is in rolling contact with the inner top surface of the switch cabinet. A rotating shaft is rotatably connected between the two sliders. A plurality of blade plates 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 slide rail. The gears are in meshing transmission with the rack plate. A hot air guiding component is fixedly connected to the inner wall of the switch cabinet at a position below the plurality of blade plates.

[0015] Further, the hot air guiding 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. Guide plates are fixedly connected to the outer peripheral walls of the plurality of rotating rods. A synchronous limiting frame is rotatably connected to the lower ends of the plurality of guide plates. 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. Induction plates are fixedly connected to the two opposite inner walls of the hanging slide rail.

[0016] Further, a PLC controller is fixedly connected to the inner wall of the switch cabinet. The plurality of induction plates, the low-speed motor are electrically connected to the PLC controller.

[0017] Further, a dust collection bin is fixedly connected to the upper end of the support frame. The dust collection bin is arranged in a semi-cylindrical tubular structure, and the dust collection bin is located directly below the electrostatic adsorption roller.

[0018] Further, a ventilation opening is formed at the bottom end of the switch cabinet, and a protective filter screen is fixedly connected to the ventilation opening.

[0019] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art:

[0020] 1. In the present invention, a dynamic heat dissipation component is provided. When there are temperature differences in each area inside the unit drawer, it can drive the two adapter plates and the telescopic frame to swing as a whole by a certain amplitude, 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 to quickly and accurately dissipate heat from the area with a higher temperature inside the unit drawer.

[0021] 2. In the present invention, a heat dissipation group adjustment component is provided. When the guide rod moves, it can drive the sliding piece to contact and slide relative to the variable resistance rod synchronously, so that the output power of the heat dissipation fan near the area with a higher temperature in the unit drawer increases, thereby enhancing the heat dissipation intensity of the corresponding heat dissipation fan. At the same time, in cooperation with the adjustment of the heat dissipation angle of the heat dissipation fan, the heat dissipation accuracy and efficiency of the area with a higher temperature inside the unit drawer can be further improved;

[0022] 3. In the present invention, a dust-proof component is provided. The hot air produced by the heat dissipation fan absorbing the hot air inside the unit drawer is used to push a plurality of leaf plates, so that the plurality of leaf plates and the rotating shaft start to rotate, and drive the slider to move relative to the hanging slide rail. Furthermore, the electrostatic adsorption roller can contact and roll relative to the inner top surface of the switch cabinet, so as to use the electrostatic adsorption roller to adsorb the dust and particulate matter attached to the inner side of the strip-shaped exhaust hole, thereby avoiding the blockage of the strip-shaped exhaust hole by dust or particulate matter and ensuring the overall heat dissipation and ventilation effect of the switch cabinet;

[0023] 4. In the present invention, a hot air diversion component is provided. During the process of the slider moving relative to the hanging slide rail, when the slider moves to the side of the hanging slide rail, it can synchronously drive a plurality of guide plates to rotate in the reverse direction to automatically adjust the direction of the hot air, so that the hot air can push the plurality of leaf plates in the reverse direction, causing the slider to move relative to the hanging slide rail in the reverse direction. Furthermore, the reciprocating movement of the slider relative to the hanging slide rail can be realized, so that the electrostatic adsorption roller can contact and roll relative to the inner top surface of the switch cabinet in a reciprocating manner, so as to continuously adsorb the dust and particulate matter at the strip-shaped air outlet and maintain the dust-proof effect on the strip-shaped exhaust hole at the top of the switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ;

[0026] Figure 2 Schematic diagram of the three-dimensional structure of the present invention Figure 2 ;

[0027] Figure 3 Cross-section of the switch cabinet in the present invention Figure 1 ;

[0028] Figure 4 Cross-section of the switch cabinet in the present invention Figure 2 ;

[0029] Figure 5Schematic diagram of the partial structure of the dynamic heat dissipation component in the present invention;

[0030] Figure 6 Schematic diagram of the partial structure of the limit bracket in the present invention;

[0031] Figure 7 Cross-sectional view of the partial structure of the heat conduction cylinder in the present invention;

[0032] Figure 8 Schematic diagram of the partial structure of the cooling fan in the present invention;

[0033] Figure 9 Schematic diagram of the partial structure of the inner top surface of the switch cabinet in the present invention;

[0034] Figure 10 Schematic diagram of the partial structure of the dust-proof component in the present invention;

[0035] Figure 11 Schematic diagram of the partial structure of the suspension slide rail in the present invention;

[0036] Figure 12 Schematic diagram of the partial structure of the hot air diversion component in the present invention.

[0037] Reference numerals: 1, switch cabinet; 2, unit drawer; 3, dynamic heat dissipation component; 31, heat conduction cylinder; 32, control piston; 33, connecting rod; 34, limit bracket; 35, sliding hole; 36, guide rod; 37, adapter plate; 38, cooling fan; 39, oblique heat dissipation fins; 310, heat dissipation 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 resistance rod; 52, sliding piece; 6, strip-shaped exhaust hole; 7, dust-proof component; 71, suspension slide rail; 72, slider; 73, support frame; 74, electrostatic adsorption roller; 75, rotating shaft; 76, blade; 77, gear; 78, rack plate; 8, hot air diversion component; 81, fixed bracket; 82, rotating rod; 83, diversion plate; 84, synchronous limit frame; 85, low-speed motor; 86, induction plate; 9, PLC controller; 10, dust collection bin; 11, ventilation port. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] The present invention will be further described below in conjunction with embodiments.

[0040] Embodiment: Refer to Figures 1 to 12 , a draw-out power Internet of Things switch cabinet, comprising:

[0041] The switch cabinet 1 has a ventilation opening 11 at the bottom end. A protective filter screen is fixedly connected at the ventilation opening 11. The protective filter screen at the ventilation opening 11 is made of stainless steel, which is corrosion-resistant and can intercept fine particles. A number of unit drawers 2 are slidably installed inside the switch cabinet 1. 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 conduction cylinders 31 fixedly connected to two opposite inner walls of the unit drawer 2. Both of the two heat conduction cylinders 31 are filled with a thermo-expansion liquid. And a control piston 32 is hermetically slidably connected to the inner wall of each of the two heat conduction cylinders 31. A connecting rod 33 is fixedly connected to the outer wall of each control piston 32. Two limiting brackets 34 are fixedly connected to two opposite inner walls of the switch cabinet 1. Slide holes 35 are opened at both the upper and lower ends of the limiting brackets 34. Guide rods 36 are slidably connected to the slide holes 35 on the two limiting brackets 34. A transfer plate 37 is rotatably connected to the outer peripheral wall of each of the two guide rods 36. A heat dissipation fan 38 is fixedly installed on each of the two transfer plates 37. A number of oblique heat dissipation fins 39 are fixedly connected to the side of the heat dissipation fan 38 where the air outlet is located. A number of heat dissipation holes 310 are opened on the side wall of the unit drawer 2 close to the heat dissipation fan 38. A telescopic frame 311 is slidably connected between two adjacent ends of the two transfer plates 37;

[0042] Specifically, the heat conduction cylinder 31 is made of high-purity oxygen-free copper material, which has high heat conductivity and corrosion resistance, and can ensure the rapid heat response and long-term stability of the thermo-expansion liquid in the heat conduction cylinder 31. The thermo-expansion liquid uses PMX200 methyl silicone oil, which has the characteristics of low viscosity and high expansion coefficient, and is odorless, non-toxic, with excellent chemical stability and electrical insulation, and can be used stably for a long time at -50°C to 180°C, enabling the heat conduction cylinder 31 to efficiently transfer the heat inside the unit drawer 2 to the thermo-expansion liquid;

[0043] Specifically, when the two transfer plates 37 and the telescopic frame 311 are inclined at a certain angle as a whole, the two transfer plates 37 can respectively move relative to the telescopic frame 311 in a telescopic manner, that is, the overall length of the two transfer plates 37 and the telescopic frame 311 supports change to adapt to the dynamic adjustment of the heat dissipation angles of the two heat dissipation fans 38;

[0044] When there are temperature differences in the internal regions of the unit drawer 2, the two heat conduction cylinders 31 receive different amounts of heat, causing the thermo-expansion liquids filled inside the two heat conduction cylinders 31 to have different expansion states due to different degrees of heating. The thermo-expansion liquid in the heat conduction cylinder 31 on the side with a higher regional temperature expands more, resulting in different strokes of the two control pistons 32 in the two heat conduction cylinders 31. Consequently, the two connecting rods 33 will push the two guide rods 36 to move different distances, enabling the two adapter plates 37 and the telescopic frame 311 as a whole to swing by a certain amplitude. This allows the two cooling fans 38 to face the side where the guide rod 36 moves a longer distance, that is, the side with a higher temperature inside the unit drawer 2. In other words, the two cooling fans 38 can dynamically adjust the cooling angle to quickly and precisely dissipate heat from the area with a higher temperature inside the unit drawer 2, improving the heat dissipation efficiency of the unit drawer 2. At the same time, the output power of the cooling fan 38 near the area with a lower temperature inside the unit drawer 2 decreases to save the overall heat dissipation energy consumption;

[0045] Magnetic connection components 4 are fixedly connected to the outer peripheral walls of both guide rods 36. The magnetic connection component 4 includes 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 connecting 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, and a conductive strip 44 is fixedly connected to the inner side of the limit bracket 34. It should be noted that the length of the conductive strip 44 is less than the sliding hole 35, and the conductive rod 43 selectively contacts and slidably cooperates with the conductive strip 44. The conductive strip 44, the conductive rod 43, the electromagnet ring 41 are electrically connected to an external power source;

[0046] 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, and the connecting rod 33 can continuously drive the ferromagnetic plate 42 to move until the conductive rod 43 no longer contacts the conductive strip 44. At this time, the electromagnet ring 41 is powered off and loses the magnetic attraction force on the ferromagnetic plate 42. At this moment, the connecting rod 33 and the guide rod 36 are separated as a whole, enabling the unit drawer 2 to be completely pulled out. During the process of pushing the unit drawer 2 in, when the unit drawer 2 is continuously pushed in, that is, when the connecting rod 33 continuously pushes the ferromagnetic plate 42 to move, the conductive rod 43 will contact the conductive strip 44 and cause the electromagnet ring 41 to be powered on, enabling the electromagnet ring 41 to restore the magnetic attraction force on the ferromagnetic plate 42. As a result, 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 cooperation between the unit drawer 2 and the limit bracket 34. During use, the magnetic attraction cooperation among the connecting rod 33, the electromagnet ring 41, and the ferromagnetic plate 42 arranged inside the unit drawer 2 can be used to achieve the dynamic heat dissipation adjustment of the unit drawer 2, and at the same time, it will not affect the operation of pulling out and pushing in the unit drawer 2 relative to the switch cabinet 1.

[0047] A heat dissipation self-regulating component 5 is fixedly connected to the inner side of each limit bracket 34. The heat dissipation self-regulating component 5 includes a variable resistance rod 51 fixedly connected to the inner side of the limit bracket 34. A sliding piece 52 is fixedly connected to the outer peripheral wall of the guide rod 36, and the sliding piece 52 is in sliding contact with the variable resistance rod 51; wherein, the variable resistance rod 51 and the sliding piece 52 form a sliding rheostat. The sliding rheostat, the heat dissipation fan 38 close to the sliding rheostat and an external power supply form a closed series circuit. During the process of the sliding piece 52 moving away from the unit drawer 2, the resistance value of the sliding rheostat in the closed series circuit composed of the sliding rheostat, the heat dissipation fan 38 and the external power supply decreases;

[0048] When the guide rod 36 moves, it can drive the sliding piece 52 to move synchronously, so that the sliding piece 52 can slide in contact with the variable resistance rod 51 for a certain distance. The higher the temperature in the area inside the unit drawer 2, the longer the moving stroke of the corresponding control piston 32 and the guide rod 36. The longer the sliding distance of the sliding piece 52 relative to the variable resistance rod 51 in the direction away from the guide rod 36, the smaller the resistance value of the sliding rheostat formed by the variable resistance rod 51 and the sliding piece 52 in the closed series circuit composed of the sliding rheostat, the heat dissipation fan 38 close to the corresponding sliding rheostat and the external power supply, the smaller the total resistance value of the closed series circuit, and the larger the total current. That is, the input current of the heat dissipation fan 38 close to the corresponding sliding rheostat increases, and the output power of the heat dissipation fan 38 in the area with a higher temperature close to the unit drawer 2 increases, so as to improve the heat dissipation intensity of the corresponding heat dissipation fan 38. At the same time, in cooperation with the adjustment of the heat dissipation angle of the heat dissipation fan 38, the heat dissipation accuracy and heat dissipation efficiency of the area with a higher temperature inside the unit drawer 2 can be further improved.

[0049] A plurality of strip-shaped exhaust holes 6 are opened at the top end of the switch cabinet 1. A dust-proof component 7 is fixedly connected to the inner top surface of the switch cabinet 1. The dust-proof component 7 includes two suspended slide rails 71 fixedly connected to the inner top surface of the switch cabinet 1. Sliders 72 are slidably connected to the inner sides of the two suspended slide rails 71. The upper end surfaces of the two sliders 72 are fixedly connected with a support frame 73. The upper end of the support frame 73 is rotatably connected with 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, and can efficiently adsorb dust particles with low energy consumption. The electrostatic adsorption roller 74 is in rolling contact with the inner top surface of the switch cabinet 1. A dust collection bin 10 is fixedly connected to the upper end of the support frame 73. The dust collection bin 10 is arranged in a semi-cylindrical tubular structure, and the dust collection bin 10 is located directly below the electrostatic adsorption roller 74;

[0050] Specifically, the electrostatic adsorption roller 74 generates static electricity on its surface through an electrostatic generator;

[0051] Specifically, during operation, the electrostatic adsorption roller 74 can be periodically powered off, so that the electrostatic adsorption roller 74 loses its adsorption property for dust and particulate matter, and then the dust and particulate matter naturally fall into the dust collection bin 10 under their own gravity, so as to maintain the cleanliness of the electrostatic adsorption roller 74 itself and its adsorption performance for dust and particulate matter, which is beneficial to ensuring the dust prevention effect on the strip-shaped exhaust holes 6;

[0052] A rotating shaft 75 is rotatably connected between the two sliders 72. A plurality of vane plates 76 are fixedly connected to the middle of the rotating shaft 75. Gear wheels 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 wheels 77 are in meshing transmission cooperation with the rack plate 78;

[0053] Multiple heat dissipation fans 38 absorb the hot air inside the unit drawer 2 and produce hot air. The hot air is discharged to the top of the switch cabinet 1 through the inclined heat dissipation fins 39. In this process, the hot air first passes through a plurality of flow guide plates 83, and then is discharged to a plurality of vane plates 76 to push the plurality of vane plates 76, so that the plurality of vane plates 76 and the rotating shaft 75 start to rotate, and the rotating shaft 75 and the sliders 72 at its ends can move relative to the suspended slide rail 71 by using the meshing cooperation of the gear wheels 77 and the rack plate 78, thereby driving the support frame 73 and the electrostatic adsorption roller 74 to move, so that the electrostatic adsorption roller 74 can contact and roll relative to the inner top surface of the switch cabinet 1, so as to use the electrostatic adsorption roller 74 to adsorb the dust and particulate matter attached to the inner side of the strip-shaped exhaust holes 6, thereby avoiding the blockage of the strip-shaped exhaust holes 6 by dust or particulate matter and ensuring the overall heat dissipation and ventilation effect of the switch cabinet 1;

[0054] A hot air flow guide component 8 is fixedly connected to the inner wall of the switch cabinet 1 at a position below the plurality of vane plates 76. The hot air flow 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. Flow guide plates 83 are fixedly connected to the outer peripheral walls of the plurality of rotating rods 82. The lower ends of the plurality of flow guide plates 83 are rotatably connected to a synchronous limit frame 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. Induction plates 86 are fixedly connected to both opposite inner walls of the suspended slide rail 71. A PLC controller 9 is fixedly connected to the inner wall of the switch cabinet 1. The plurality of induction plates 86, the low-speed motor 85 and the PLC controller 9 are electrically connected;

[0055] 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 pressed, an electric signal will be generated quickly. The PLC controller 9 can monitor and receive the electric signal generated by the induction plate 86 when it is pressed. When the PLC controller 9 monitors that the induction plate 86 generates an electric signal, the PLC controller 9 will send a control instruction to the low-speed motor 85 to drive the rotating rod 82 to rotate in the reverse direction;

[0056] When the slider 72 contacts and presses the induction plate 86 made of piezoelectric material, the PLC controller 9 can monitor and receive the change of the electrical signal generated by the pressure on 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 reverse direction, and several guide plates 83 rotate synchronously in the reverse direction under the limiting action of the synchronous limiting frame 84. Furthermore, the direction of the hot air can be automatically adjusted, so that the hot air can push several vane plates 76 in the reverse direction, so as to realize the reciprocating movement of the slider 72 relative to the suspended slide rail 71. Furthermore, the electrostatic adsorption roller 74 can contact and roll reciprocally relative to the inner top surface of the switch cabinet 1, so as to continuously adsorb the dust and particles at the strip-shaped exhaust holes 6 and maintain the dust-proof effect on the strip-shaped exhaust holes 6.

[0057] The working principle of the present invention is as follows:

[0058] If the switch states of the electrical components inside the unit drawer 2 are different, that is, when the operating states of the electrical components are different and the temperatures in different regions inside the unit drawer 2 are different, the two heat conduction cylinders 31 receive different amounts of heat, so that the thermo-expansion liquids filled inside the two heat conduction cylinders 31 are in different expansion states due to different degrees of heat absorption. The thermo-expansion liquid in the heat conduction cylinder 31 on the side with a higher regional temperature expands more, so that the strokes of the two control pistons 32 in the two heat conduction cylinders 31 are different. Furthermore, 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 swing by a certain amplitude, so that the two cooling fans 38 can move towards the side where the guide rod 36 moves a longer distance, that is, the region with a higher temperature inside the unit drawer 2;

[0059] When the guide rod 36 moves, it can drive the sliding piece 52 to move synchronously, so that the sliding piece 52 can contact and slide relative to the variable resistance rod 51 for a certain distance. The higher the temperature in the region inside the unit drawer 2, the longer the moving strokes of the corresponding control piston 32 and the guide rod 36, and the longer the sliding distance of the sliding piece 52 relative to the variable resistance rod 51 in the direction away from the guide rod 36. As a result, the resistance value of the sliding rheostat formed by the variable resistance rod 51 and the sliding piece 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 decreases, so that the total resistance value of the closed series circuit decreases and the total current increases, that is, the input current of the cooling fan 38 close to the corresponding sliding rheostat increases, so that the output power of the cooling fan 38 close to the region with a higher temperature inside the unit drawer 2 increases to enhance the heat dissipation intensity of the corresponding cooling fan 38;

[0060] During the extraction process of the unit drawer 2, the conductive rod 43 and the conductive strip 44 will first maintain contact, that is, the electromagnet ring 41 is in the energized state and has a magnetic suction force on the ferromagnetic plate 42. When the unit drawer 2 continues to be extracted, that is, the connecting rod 33 continues to drive the ferromagnetic plate 42 to move. Until the conductive rod 43 no longer contacts the conductive strip 44, the electromagnet ring 41 is de-energized and loses the magnetic suction force on the ferromagnetic plate 42, enabling the unit drawer 2 to be completely extracted; During the insertion process of the unit drawer 2, the connecting rod 33 will first push the ferromagnetic plate 42 to move closer to the guide rod 36, causing the ferromagnetic plate 42 to come into contact with the electromagnet ring 41 first. When the unit drawer 2 continues to be inserted, 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 energize the electromagnet ring 41, enabling the electromagnet ring 41 to restore the magnetic suction force on the ferromagnetic plate 42, and further enabling the connecting rod 33 to drive the guide rod 36 to move, realizing the automatic connection and separation of the connecting rod 33 and the guide rod 36;

[0061] Multiple cooling fans 38 absorb the hot air inside the unit drawer 2 and produce hot air. The hot air is discharged towards the top of the switch cabinet 1 via the inclined heat dissipation fins 39. During this process, the hot air first passes through multiple flow guide plates 83, and then is discharged towards several vane plates 76 and pushes several vane plates 76, causing several vane plates 76 and the rotating shaft 75 to start rotating. The rotating shaft 75 and the slider 72 at its end can move relative to the suspended slide rail 71 by using the meshing cooperation of the gear 77 and the rack plate 78, and then drive the support frame 73 and the electrostatic adsorption roller 74 to move, enabling the electrostatic adsorption roller 74 to contact and roll relative to the inner top surface of the switch cabinet 1, so as to use the electrostatic adsorption roller 74 to adsorb the dust and particulate matter attached to the inside of the strip-shaped exhaust hole 6;

[0062] During the process of the slider 72 moving relative to the suspended slide rail 71, when the slider 72 contacts and presses the induction plate 86 made of piezoelectric material, the PLC controller 9 can monitor and receive the change in the electrical signal of the induction plate 86 and control the operation of the low-speed motor 85, enabling the low-speed motor 85 to drive one of the rotating rods 82 to rotate in the reverse direction, causing several flow guide plates 83 to rotate synchronously in the reverse direction under the limiting action of the synchronous limiting frame 84. Furthermore, the direction of the hot air can be automatically adjusted, enabling the hot air to push several vane plates 76 in the reverse direction, so as to realize the reciprocating movement of the slider 72 relative to the suspended slide rail 71, and further enabling the electrostatic adsorption roller 74 to contact and roll reciprocally relative to the inner top surface of the switch cabinet 1, so as to continuously adsorb the dust and particulate matter at the strip-shaped exhaust hole 6.

[0063] 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 foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and 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 draw-out type power Internet of Things switch cabinet, characterized in that, Comprising: A switchgear cabinet (1), inside which several unit drawers (2) are slidably installed, 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 conduction cylinders (31) fixedly connected to two opposite inner walls of the unit drawer (2). Heat expansion and contraction liquid is filled in both of the two heat conduction cylinders (31), and a control piston (32) is hermetically and slidably connected to the inner wall of each of the two heat conduction cylinders (31). A connecting rod (33) is fixedly connected to the outer wall of each control piston (32). Limit brackets (34) are fixedly connected to two opposite inner walls of the switchgear cabinet (1). Slide holes (35) are opened at both the upper and lower ends of the limit brackets (34). Guide rods (36) are slidably connected to the slide holes (35) of the two limit brackets (34). Magnetic connection components (4) are fixedly connected to the outer peripheral walls of the two guide rods (36), and transfer plates (37) are rotatably connected to the outer peripheral walls of the two guide rods (36). Heat dissipation fans (38) are fixedly installed on both of the two transfer plates (37). A plurality of oblique heat dissipation fins (39) are fixedly connected to one side of the air outlet of the heat dissipation fan (38). A plurality of heat dissipation holes (310) are opened in the side wall of the unit drawer (2) close to the heat dissipation fan (38). A telescopic frame (311) is slidably connected between two adjacent ends of the two transfer plates (37). A heat dissipation self-adjusting component (5) is fixedly connected to the inner side of each limit bracket (34). The heat dissipation self-adjusting component (5) is used to automatically adjust the heat dissipation intensity of the corresponding heat dissipation fan (38) according to the temperature in the area inside the unit drawer (2); The heat dissipation self-adjusting component (5) includes a variable resistance 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). The sliding piece (52) is in sliding contact with the variable resistance rod (51); Wherein, the variable resistance rod (51) and the sliding piece (52) form a sliding rheostat. The sliding rheostat, the heat dissipation fan (38) close to the sliding rheostat and an external power supply form a closed series circuit. During the process of the sliding piece (52) moving away from the unit drawer (2), the resistance value of the sliding rheostat in the closed series circuit composed of the sliding rheostat, the heat dissipation fan (38) and the external power supply decreases; A plurality of strip-shaped exhaust holes (6) are opened at the top end of the switchgear cabinet (1), and a dust-proof component (7) is fixedly connected to the inner top surface of the switchgear cabinet (1); The dust-proof component (7) includes two suspended slide rails (71) fixedly connected to the inner top surface of the switch cabinet (1). Sliders (72) are slidably connected to the inner sides of the two suspended slide rails (71). A support frame (73) is fixedly connected to the upper end surfaces of the two sliders (72). An electrostatic adsorption roller (74) is rotatably connected to the upper end of the support frame (73). The electrostatic adsorption roller (74) is electrically connected to an external power source. The electrostatic adsorption roller (74) is 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 blade plates (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 gears (77) are in meshing transmission with the rack plate (78). A hot air diversion component (8) is fixedly connected to the inner wall of the switch cabinet (1) at a position below the plurality of blade plates (76).

2. The draw-out type power Internet of Things switch cabinet according to claim 1, characterized in that, The magnetic attraction connection component (4) includes 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 connecting 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 strip (44) is fixedly connected to the inner side of the limit bracket (34). The conductive rod (43) is selectively in sliding contact with the conductive strip (44). The conductive strip (44), the conductive rod (43), the electromagnet ring (41) are electrically connected to an external power source.

3. The draw-out type power Internet of Things switch cabinet according to claim 1, characterized in that, The hot air diversion 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). Flow guide plates (83) are fixedly connected to the outer peripheral walls of the plurality of rotating rods (82). A synchronous limit frame (84) is rotatably connected to the lower ends of the plurality of flow guide plates (83). 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). Induction plates (86) are fixedly connected to the two opposite inner walls of the suspended slide rail (71).

4. The draw-out type power Internet of Things switch cabinet according to claim 3, characterized in that, A PLC controller (9) is fixedly connected to the inner wall of the switch cabinet (1). The plurality of induction plates (86), the low-speed motor (85) are electrically connected to the PLC controller (9).

5. The draw-out type power Internet of Things switch cabinet according to claim 1, characterized in that, A dust collection bin (10) is fixedly connected to the upper end of the support frame (73). The dust collection bin (10) is arranged in a semi-cylindrical tubular structure, and the dust collection bin (10) is located directly below the electrostatic adsorption roller (74).

6. The draw-out type power Internet of Things switch cabinet according to claim 1, characterized in that, A ventilation opening (11) is opened at the bottom end of the switch cabinet (1), and a protective filter screen is fixedly connected to the ventilation opening (11).

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