An intelligent power distribution information display cabinet

Abstract

The present invention belongs to the technical field of power distribution cabinets, and specifically is an intelligent power distribution information display cabinet, comprising a cabinet body, a transformer support beam, a micro-breaker mounting plate, a main switch mounting plate, an inner door panel, an outer door panel and an information display screen; a heat dissipation fan is arranged on the top of the cabinet body; an air intake dust-proof component is installed at the bottom of the cabinet body; the upper end of the air intake dust-proof component is connected to the heat dissipation duct; after the heat dissipation fan on the top of the cabinet body is turned on, the cold air outside the cabinet body enters the heat dissipation duct from the air intake dust-proof component at the bottom of the cabinet body, and then enters three areas through the air outlet, and the controller then uses the difference between the temperature data transmitted by the temperature sensors arranged in the three areas and the preset temperature as the basis for the controller to control the size of the air outlet to open the air outlet of the air outlet adjustment unit, thereby more reasonably distributing the cold air to each area, thereby more reasonably cooling the electrical appliances in each area of ​​the cabinet body, thereby improving the safety of the electrical appliances in the intelligent power distribution cabinet.

Description

Technical Field

[0001] The invention belongs to the technical field of power distribution cabinets, and in particular to an intelligent power distribution information display cabinet. Background Art

[0002] Distribution cabinets generally use a passive convection solution that combines top fan exhaust with bottom openings. Although the subsequent compartment-type heat dissipation design improves uniformity by isolating high-heat components, it still relies on preset air duct ratios and cannot adapt to dynamic load changes.

[0003] Traditional air ducts use a fixed aperture ratio design, which is unable to adapt to the dynamic heat generation characteristics of electrical components in different areas. For example, test data from a power equipment manufacturer showed that when the inverter module load suddenly increased by 60%, the temperature in the area where it was located rose by approximately 22°C compared to adjacent areas. However, fixed air ducts could only provide 60%-70% of the uniform air volume, resulting in extremely poor cooling effect in this situation, which could easily damage the electrical appliances in the distribution cabinet.

[0004] The one-way convection created by bottom air intake and top air exhaust can cause cold air to flow preferentially to areas with less wind resistance, while areas with high heat density become "airflow dead zones." Industry cases have shown that this design flaw can increase local temperature differences by more than 30°C.

[0005] In a modular power distribution cabinet, users may adjust the internal component layout according to their needs, but the fixed air duct cannot reconstruct the airflow distribution strategy accordingly, resulting in a 40%-50% decrease in heat dissipation efficiency after the modification.

[0006] As can be seen from the above, the fixed air duct design leads to uneven distribution of cold air, and local overheated areas cannot be cooled in a targeted manner; the static cooling mode makes it difficult to dynamically adjust the air volume according to real-time temperature changes; and indiscriminate air supply causes energy waste and may cause condensation risks due to excessive cooling. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention proposes an intelligent power distribution information display cabinet. This invention primarily addresses the problems of existing power distribution cabinets, such as uneven cold air distribution due to fixed air duct designs, inability to provide targeted cooling in overheated areas, static cooling modes that make it difficult to dynamically adjust air volume based on real-time temperature changes, and indiscriminate air supply that wastes energy and can lead to condensation risks due to excessive cooling.

[0008] The technical solution adopted by the present invention to solve its technical problems is as follows: the present invention provides an intelligent power distribution information display cabinet, including a cabinet body, a transformer joist, a micro-break switch mounting plate, a main switch mounting plate, an inner door panel, an outer door panel and an information display screen; the transformer joist, the micro-break switch mounting plate and the main switch mounting plate are arranged in vertical layers inside the cabinet body; the transformer joist, the micro-break switch mounting plate and the main switch mounting plate are fixedly connected to the side wall of the cabinet body through L-shaped angle strips; a thermal insulation baffle is arranged between the transformer joist, the micro-break switch mounting plate and the main switch mounting plate; the micro-break switch mounting plate and the main switch mounting plate are arranged in a vertical layer; the transformer joist, the micro-break switch mounting plate and the main switch mounting plate are fixedly connected to the side wall of the cabinet body through L-shaped angle strips; a thermal insulation baffle is arranged between the adjacent transformer joist, the micro-break switch mounting plate and the main switch mounting plate; the micro-break switch mounting plate and the main switch mounting plate are fixedly connected to the side wall of the cabinet body through L-shaped angle strips; the transformer joist, ... Circulation ports are provided on the switch mounting plates; the information display screen is integrated with a touch module and embedded in the surface of the outer door panel; a cooling fan is provided on the top of the cabinet; an air intake dust-proof component is installed at the bottom of the cabinet; the upper end of the air intake dust-proof component is connected to a cooling air duct; the cooling air duct passes through the thermal insulation baffle, and air outlets are separately provided in the areas corresponding to the transformer joist, micro-breaker mounting plate and main switch mounting plate; air outlet adjustment units that can separately adjust the air volume are provided at the air outlets; temperature sensors are separately provided in the areas of the transformer joist, micro-breaker mounting plate and main switch mounting plate.

[0009] During operation, the sides of the cabinet, the inner door panels and the thermal insulation baffles divide the space inside the cabinet into three independent areas for placing the transformer, the micro-breaker and the main switch respectively. Because a mounting plate is set on the back of the area of ​​the micro-breaker and the main switch, and a flow port is set on the mounting plate, after the cooling fan on the top of the cabinet is turned on, the cold air outside the cabinet enters the cooling duct from the air intake dust-proof component at the bottom of the cabinet, and then enters the three areas through the air outlets set in the three areas on the cooling duct. The controller then compares the temperature data transmitted by the temperature sensors set in the three areas with the preset temperature. The value is used as the basis for the controller to control the size of the air outlet of the air outlet adjustment unit, thereby distributing the cold air to each area more reasonably, thereby achieving more reasonable cooling of the electrical appliances in each area of ​​the cabinet, thereby improving the safety of the electrical appliances in the intelligent distribution cabinet; after the cold air in each area cools the electrical appliances in the area, the cold air in the independent areas of the micro-breaker and the main switch enters between the mounting plate and the back plate of the cabinet through the flow ports on their respective mounting plates, while the cold air in the transformer area directly enters between the mounting plate and the back plate of the cabinet upward along the back plate of the cabinet, and then flows to the top of the cabinet and is discharged out of the cabinet by the heat dissipation fan.

[0010] Preferably, the air outlet adjustment unit includes blades, a driving gear, a synchronous gear, a rack, an L-shaped guide bar and a driving motor; the blades are evenly spaced and rotatably connected in the air outlet of the heat dissipation duct, and the spacing between adjacent blades is less than the width of the blade; one end of the blade is fixedly connected to the synchronous gear, and adjacent synchronous gears are meshed with each other; the rack is meshed with all synchronous gears; the rack is slidably connected to the heat dissipation duct through the L-shaped guide bar; the driving gear is meshed with the rack; the driving gear is fixedly connected to the rotating shaft of the driving motor; the driving motor is fixedly connected to the heat dissipation duct through a support plate.

[0011] During operation, the controller uses the difference between the temperature data transmitted by the temperature sensors set in the three areas and the preset temperature as the basis for the controller to control the size of the air outlet opening of the air outlet adjustment unit. Specifically, the controller controls the driving motor through electrical signals to drive the driving gear to rotate, and then drives the gear to move through the driving rack to simultaneously drive all the synchronous gears to rotate, and then simultaneously drives the blades connected to the synchronous gears to rotate the angle, so that the flow area of ​​the gap between the blades changes, thereby realizing the control of the opening size of the air outlet on the heat dissipation duct, and then more reasonably distributes the cold air to each area, thereby improving the safety of the electrical appliances in the intelligent distribution cabinet.

[0012] Preferably, a V-shaped flow balancing plate is provided in the heat dissipation duct; the V-shaped flow balancing plates are arranged side by side and evenly spaced; and the tip of the V-shaped flow balancing plate faces downward.

[0013] Since the air flow velocity in the heat dissipation duct is high and unevenly distributed, the V-shaped flow equalizer can divide the concentrated air flow into two branches, thereby eliminating the "high-speed zone" in the center of the air flow and the "low-speed zone" at the edge, so that the air flow evenly covers the entire heat dissipation duct cross-section, and the cold air flow flowing into each area from the heat dissipation duct outlet can cool the electrical appliances inside more evenly, thereby improving the cooling effect.

[0014] Preferably, the V-shaped angle of the V-shaped flow equalizer is 60°-90°. Setting the V-shaped angle of the V-shaped flow equalizer to 60°-90° can guide the cold air flow to turn smoothly, thereby reducing the eddy currents and pressure loss caused by the airflow hitting the inner wall of the heat dissipation duct, thereby improving the cooling efficiency of the cold air flow.

[0015] Preferably, the air intake dust-proof component includes an air intake hood, a humidity-sensing dust-proof net, a telescopic plate assembly and a limit strip; the air intake hood is connected to the lower end of the heat dissipation duct; a wavy folded humidity-sensing dust-proof net is arranged in the air intake hood; the humidity-sensing dust-proof net includes a shape memory alloy skeleton and a nanofiber filter layer; the nanofiber filter layer is fixed to the wavy support surface of the shape memory alloy skeleton by a flexible adhesive; the shape memory alloy skeleton automatically adjusts the folding density of the nanofiber filter layer according to humidity changes; the upper and lower parts of the humidity-sensing dust-proof net are limited by the limit strip fixedly connected to the air intake hood; one end of the humidity-sensing dust-proof net is connected to one side of the air intake hood; the other end of the humidity-sensing dust-proof net is connected to the other side of the air intake hood through the telescopic plate assembly.

[0016] The shape memory alloy skeleton is a folded spring structure. Because the nanofiber filter layer is fixed to the wavy support surface of the shape memory alloy skeleton with a flexible adhesive (such as silicone), the deformation of the shape memory alloy skeleton causes the nanofiber filter layer to stretch or contract synchronously. In low-humidity environments, it is in a compressed, folded form, with a high pleat density in the nanofiber filter layer, resulting in a small filtration area. When the humidity exceeds 70%, the shape memory alloy skeleton is heated and unfolded into an extended form, stretching the pleats in the nanofiber filter layer and increasing the filtration area. After the nanofiber filter layer is stretched, its porosity increases from 60% to 85%, while its pore size expands from 1μm to 3μm, thus balancing high flow and PM2.5 interception requirements.

[0017] The extension and retraction of the humidity-sensing dust-proof net pulls the retractable plate assembly to extend and retract, thereby completely covering the air intake cover. The extension and retraction of the humidity-sensing dust-proof net is limited by the limit bar in its extension and retraction direction.

[0018] Preferably, the shape memory alloy skeleton is made of nickel-titanium-based shape memory alloy, and the nickel atomic composition of the nickel-titanium-based shape memory alloy is adjusted to 55.5%; a polyacrylic acid hygroscopic coating is provided on the surface of the shape memory alloy skeleton.

[0019] When the nickel content increases from 54% to 56%, the phase transition temperature of the nickel-titanium shape memory alloy can rise from -50°C to 95°C. By optimizing the composition ratio, such as reducing the nickel atomic content to 55.5%, this approach achieves a phase transition temperature adjustment of the nickel-titanium shape memory alloy to between 25°C and 45°C, enabling the alloy to reliably trigger phase transitions within a normal temperature and humidity range.

[0020] The polyacrylic acid hygroscopic coating has a coating thickness of 50-200μm. It releases heat when absorbing moisture, thereby causing the temperature of the nickel-titanium-based shape memory alloy skeleton to rise to above 40°C when the humidity is >70%RH, reaching the phase transition point.

[0021] The moisture-absorbing layer is bonded to the nickel-titanium shape memory alloy skeleton with a highly thermally conductive adhesive. The adhesive boasts a thermal conductivity of >5W / m·K, ensuring rapid heat transfer into the nickel-titanium shape memory alloy, triggering the austenitic phase transformation. This adhesive, based on a silicone resin matrix and incorporating aluminum oxide and zinc oxide as thermally conductive fillers, creates a flexible elastomer suitable for the complex surface bonding and deformation requirements of this application.

[0022] Preferably, the shape memory alloy skeleton is connected to the electric pulse generator through an electrical signal; humidity sensors are separately provided in the areas of the transformer support beam, the micro-breaker mounting plate and the main switch mounting plate.

[0023] The electric pulse generator and each humidity sensor are connected to the controller via electrical signals. When the temperature sensor in the cabinet detects that the temperature is ≥50°C and the humidity is ≤60%RH, the controller applies an electric pulse heating to the shape memory alloy skeleton through the electric pulse generator, with a power of 10W and a duration of 5s, thereby forcibly triggering the shape memory alloy skeleton to stretch, thereby driving the pleat density of the nanofiber filter layer to decrease to 50%, thereby forcing the cold air flow to increase by 150%, thereby achieving rapid heat dissipation in a high temperature and low humidity environment.

[0024] When the humidity is ≥80%RH and the temperature is ≤30℃, the controller controls the pulse intensity through the electric pulse generator, and then drives the nanofiber filter layer pleat density to 80% through the shape memory alloy skeleton. At the same time, the controller controls the cooling fan on the top of the cabinet to turn off, reducing the risk of condensation in the cabinet only through natural convection, thereby improving the safety of the information display cabinet and greatly reducing power consumption.

[0025] As can be seen from the above, this case uses dual-mode control of automatic humidity adjustment and forced temperature adjustment to effectively solve the problem that traditional single-humidity control logic cannot actively enhance heat dissipation in high-temperature and dry scenarios; and then, by actively intervening in the phase change process of the shape memory alloy skeleton under specific working conditions, it improves adaptability to extreme environments.

[0026] Preferably, the surface of the nanofiber filter layer is sprayed with fluorosilane.

[0027] While the nanofiber filter efficiently captures PM2.5 through electrostatic adsorption, PM2.5 and oily particles can clog pores over time, leading to increased pressure drop and reduced airflow. Furthermore, when humidity is too high, moisture neutralizes surface charge, weakening adsorption capacity. By spraying fluorosilane on the surface of the nanofiber filter, a super-hydrophobic layer is formed, reducing the adhesion between oily particles and the filter by 70%, allowing them to fall off due to gravity or airflow shear forces. Furthermore, when moisture condenses into beads and rolls off, it prevents the nanofiber filter from becoming wet and causing electrostatic failure, thus ensuring stable dust removal.

[0028] Preferably, one end of the humidity-sensing dust-proof net is connected to the air inlet cover via a piezoelectric ceramic vibrator; and both sides of the piezoelectric ceramic vibrator seal the ends of the humidity-sensing dust-proof net via dust-proof sponges.

[0029] The piezoelectric ceramic vibrator is connected to the controller via an electrical signal. The controller controls the piezoelectric ceramic vibrator to trigger high-frequency vibration once every 8 hours of operation, with an amplitude of 5 μm and a frequency of 40 Hz for 30 seconds, thereby removing particles attached to the humidity-sensing dustproof net.

[0030] Preferably, a dust box is provided below the air intake hood; an electric telescopic door is provided on the upper end surface of the dust box; and the dust box is fixedly connected to the cabinet.

[0031] The electric telescopic door is connected to the controller via an electrical signal; the controller first controls the electric telescopic door to open before controlling the piezoelectric ceramic vibrator to vibrate, so that the particles vibrated off by the piezoelectric ceramic vibrator can fall into the dust collection box; after the piezoelectric ceramic vibrator finishes vibrating, the controller controls the electric telescopic door to close, so that the fallen dust particles will not be sucked into the cabinet again, thereby avoiding secondary pollution.

[0032] The beneficial effects of the present invention are as follows:

[0033] 1. After the heat dissipation fan on the top of the cabinet is turned on, the cold air outside the cabinet enters the heat dissipation duct from the air inlet dust-proof component at the bottom of the cabinet, and then enters the three areas through the air outlets set in the three areas on the heat dissipation duct. The controller then uses the difference between the temperature data transmitted by the temperature sensors set in the three areas and the preset temperature as the basis for the controller to control the size of the air outlet opening of the air outlet adjustment unit, thereby more reasonably distributing the cold air to each area, thereby more reasonably cooling the electrical appliances in each area of ​​the cabinet, and thus improving the safety of the electrical appliances in the intelligent power distribution cabinet.

[0034] 2. In the present invention, the controller uses the difference between the temperature data transmitted by the temperature sensors set in the three areas and the preset temperature as the basis for the controller to control the size of the air outlet opening of the air outlet adjustment unit. Specifically, the controller controls the driving motor through an electrical signal to drive the driving gear to rotate, and then the driving gear moves through the driving rack to simultaneously drive all the synchronous gears to rotate, and then simultaneously drives the blades connected to the synchronous gears to rotate at an angle, so that the flow area of ​​the gap between the blades changes, thereby realizing the control of the opening size of the air outlet on the heat dissipation duct, and then more reasonably distributing the cold air to each area, thereby improving the safety of the electrical appliances in the intelligent distribution cabinet.

[0035] 3. The shape memory alloy skeleton in this invention is a folded spring structure. Because the nanofiber filter layer is fixed to the wavy support surface of the shape memory alloy skeleton with a flexible adhesive, the deformation of the shape memory alloy skeleton drives the nanofiber filter layer to stretch or contract synchronously. In low-humidity environments, it is in a compressed, folded form, where the nanofiber filter layer has a high pleat density and a small filtration area. When the humidity exceeds 70%, the shape memory alloy skeleton is heated and unfolded into an extended form, stretching the pleats of the nanofiber filter layer and increasing the filtration area. After the nanofiber filter layer is stretched, its porosity increases from 60% to 85%, and its pore size increases from 1μm to 3μm, thus balancing the requirements of high flow rate and PM2.5 interception.

[0036] 4. In the present invention, when the temperature sensor inside the cabinet detects a temperature ≥50°C and a humidity ≤60%RH, the controller applies an electric pulse heating to the shape memory alloy skeleton via an electric pulse generator at a power of 10W for 5 seconds, thereby forcibly triggering the shape memory alloy skeleton to stretch, thereby driving the pleat density of the nanofiber filter layer to decrease to 50%, thereby forcing the cold air flow to increase by 150%, thereby achieving rapid heat dissipation in high temperature and low humidity environments. When the humidity is ≥80%RH and the temperature is ≤30°C, the controller controls the pulse intensity via the electric pulse generator, thereby driving the pleat density of the nanofiber filter layer to 80% through the shape memory alloy skeleton. At the same time, the controller controls the cooling fan on the top of the cabinet to turn off, reducing the risk of condensation inside the cabinet through natural convection, thereby improving the safety of the information display cabinet and significantly reducing power consumption. As can be seen from the above, the present invention, through dual-mode control of automatic humidity adjustment and forced temperature adjustment, can effectively solve the problem that traditional humidity single-control logic cannot actively enhance heat dissipation in high temperature and dry scenarios. Furthermore, under specific working conditions, by actively intervening in the phase change process of the shape memory alloy skeleton, it improves adaptability to extreme environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below with reference to the accompanying drawings.

[0038] Figure 1 1 is a schematic diagram of the overall structure of the display cabinet of the present invention in a closed state;

[0039] Figure 2 This is a schematic diagram of the overall structure of the display cabinet of the present invention in an open state;

[0040] Figure 3 It is a schematic diagram of the internal structure of the display cabinet of the present invention;

[0041] Figure 4 It is a schematic diagram of the internal structure position of the display cabinet of the present invention;

[0042] Figure 5 It is a structural schematic diagram of the heat dissipation fan in the present invention;

[0043] Figure 6 It is a structural schematic diagram of the heat dissipation duct in the present invention;

[0044] Figure 7 It is a structural schematic diagram of the air outlet adjustment unit in the present invention;

[0045] Figure 8 It is a structural schematic diagram of the air intake dust prevention component in the present invention;

[0046] Figure 9 Schematic diagram of the internal structure of the air intake dust prevention component of the present invention;

[0047] Figure 10 This is a schematic diagram of the internal structure connection of the air intake dust prevention component of the present invention;

[0048] Figure 11 It is a schematic structural diagram of the V-shaped current balancing plate in the present invention;

[0049] In the figure: cabinet 1, thermal insulation baffle 11, transformer joist 2, micro-break switch mounting plate 3, circulation port 31, main switch mounting plate 4, inner door panel 5, outer door panel 6, information display screen 61, cooling fan 7, air intake dust-proof component 8, air intake hood 81, humidity-sensing dust-proof net 82, telescopic plate assembly 83, limit strip 84, piezoelectric ceramic vibrator 85, dust-proof sponge 86, dust collection box 87, cooling air duct 9, air outlet 91, air outlet adjustment unit 92, blade 921, drive gear 922, synchronous gear 923, rack 924, L-shaped guide bar 925, drive motor 926, V-shaped current equalizing plate 93. DETAILED DESCRIPTION

[0050] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0051] like Figures 1 to 5As shown, an intelligent power distribution information display cabinet includes a cabinet body 1, a transformer joist 2, a micro-break switch mounting plate 3, a main switch mounting plate 4, an inner door panel 5, an outer door panel 6 and an information display screen 61; the transformer joist 2, the micro-break switch mounting plate 3 and the main switch mounting plate 4 are arranged vertically in layers inside the cabinet body 1; the transformer joist 2, the micro-break switch mounting plate 3 and the main switch mounting plate 4 are fixedly connected to the side wall of the cabinet body 1 through L-shaped angle strips; a thermal insulation baffle 11 is arranged between the transformer joist 2, the micro-break switch mounting plate 3 and the main switch mounting plate 4; a flow port 3 is provided on each of the micro-break switch mounting plate 3 and the main switch mounting plate 4 1; the information display screen 61 is integrated with a touch module and embedded in the surface of the outer door panel 6; a heat dissipation fan 7 is arranged on the top of the cabinet 1; an air intake dust-proof component 8 is installed at the bottom of the cabinet 1; the upper end of the air intake dust-proof component 8 is connected to a heat dissipation duct 9; the heat dissipation duct 9 passes through the thermal insulation baffle 11, and air outlets 91 are separately arranged in the areas corresponding to the transformer support beam 2, the micro-breaker mounting plate 3 and the main switch mounting plate 4; an air outlet adjustment unit 92 that can separately adjust the air volume is provided at each air outlet 91; temperature sensors are separately arranged in the areas of the transformer support beam 2, the micro-breaker mounting plate 3 and the main switch mounting plate 4.

[0052] During operation, the side of the cabinet 1, the inner door panel 5 and the thermal insulation baffle 11 are surrounded to divide the space inside the cabinet 1 into three independent areas for placing the transformer, the micro-breaker and the main switch respectively. Because a mounting plate is provided on the back of the area of ​​the micro-breaker and the main switch, and a flow port 31 is provided on the mounting plate, after the cooling fan 7 on the top of the cabinet 1 is turned on, the cold air outside the cabinet 1 enters the cooling duct 9 from the air intake dustproof component 8 at the bottom of the cabinet 1, and then enters the three areas through the air outlets 91 provided in the three areas on the cooling duct 9. The controller then compares the temperature data transmitted by the temperature sensors provided in the three areas with the preset temperature. The difference is used as the basis for the controller to control the size of the air outlet 91 opened by the air outlet adjustment unit 92, thereby more reasonably distributing the cold air to each area, thereby more reasonably cooling the electrical appliances in each area of ​​the cabinet 1, thereby improving the safety of the electrical appliances in the intelligent distribution cabinet 1; after the cold air in each area cools the electrical appliances in the area, the cold air in the independent areas of the micro-break switch and the main switch enters between the mounting plate and the back plate of the cabinet 1 through the flow openings 31 on their respective mounting plates, while the transformer area directly enters between the mounting plate and the back plate of the cabinet 1 upward along the back plate of the cabinet 1, and then flows to the top of the cabinet 1 and is discharged out of the cabinet 1 by the heat dissipation fan 7.

[0053] like Figures 6 and 7As shown, the air outlet adjustment unit 92 includes blades 921, a driving gear 922, a synchronous gear 923, a rack 924, an L-shaped guide bar 925 and a driving motor 926; the blades 921 are evenly spaced and rotatably connected in the air outlet 91 of the heat dissipation duct 9, and the spacing between adjacent blades 921 is less than the width of the blade 921; one end of the blade 921 is fixedly connected to the synchronous gear 923, and adjacent synchronous gears 923 are meshed with each other; the rack 924 is meshed with all the synchronous gears 923; the rack 924 is slidably connected to the heat dissipation duct 9 through the L-shaped guide bar 925; the driving gear 922 is meshed with the rack 924; the driving gear 922 is fixedly connected to the rotating shaft of the driving motor 926; the driving motor 926 is fixedly connected to the heat dissipation duct 9 through a support plate.

[0054] During operation, the controller uses the difference between the temperature data transmitted by the temperature sensors set in the three areas and the preset temperature as the basis for the controller to control the size of the air outlet 91 opened by the air outlet adjustment unit 92. Specifically, the controller controls the drive motor 926 through an electrical signal to drive the drive gear 922 to rotate, and then drives the gear 922 to move through the drive rack 924 to simultaneously drive all the synchronous gears 923 to rotate, and then simultaneously drives the blades 921 connected to the synchronous gear 923 to rotate the angle, so that the flow area of ​​the gap between the blades 921 changes, thereby realizing the control of the opening size of the air outlet 91 on the heat dissipation duct 9, and then more reasonably distributes the cold air to each area, thereby improving the safety of the electrical appliances in the intelligent distribution cabinet 1.

[0055] like Figure 9 and Figure 11 As shown, V-shaped flow balancing pieces 93 are provided in the heat dissipation duct 9; the V-shaped flow balancing pieces 93 are evenly spaced side by side; and the tips of the V-shaped flow balancing pieces 93 face downward.

[0056] Since the air flow velocity in the heat dissipation duct 9 is relatively high and unevenly distributed, the V-shaped flow equalizer 93 can divide the concentrated air flow into two tributaries, thereby eliminating the "high-speed zone" in the center of the air flow and the "low-speed zone" at the edge, so that the air flow evenly covers the entire cross-section of the heat dissipation duct 9, and the cold air flow flowing into each area from the air outlet 91 of the heat dissipation duct 9 can cool the electrical appliances therein more evenly, thereby improving the cooling effect.

[0057] The V-shaped angle of the V-shaped flow equalizer 93 is 60°-90°. Setting the V-shaped angle of the V-shaped flow equalizer 93 to 60°-90° can guide the cold air flow to turn smoothly, thereby reducing the eddy currents and pressure loss caused by the airflow hitting the inner wall of the heat dissipation duct 9, thereby improving the cooling efficiency of the cold air flow.

[0058] like Figures 8 to 10As shown, the air intake dust-proof component 8 includes an air intake cover 81, a humidity-sensing dust-proof net 82, a telescopic plate assembly 83 and a limit strip 84; the air intake cover 81 is connected to the lower end of the heat dissipation duct 9; a wavy folded humidity-sensing dust-proof net 82 is arranged in the air intake cover 81; the humidity-sensing dust-proof net 82 includes a shape memory alloy skeleton and a nanofiber filter layer; the nanofiber filter layer is fixed on the wavy support surface of the shape memory alloy skeleton by a flexible adhesive; the shape memory alloy skeleton automatically adjusts the folding density of the nanofiber filter layer according to humidity changes; the upper and lower parts of the humidity-sensing dust-proof net 82 are limited by the limit strip 84 fixedly connected to the air intake cover 81; one end of the humidity-sensing dust-proof net 82 is connected to one side of the air intake cover 81; the other end of the humidity-sensing dust-proof net 82 is connected to the other side of the air intake cover 81 through the telescopic plate assembly 83.

[0059] The shape memory alloy skeleton is a folded spring structure. Because the nanofiber filter layer is fixed to the wavy support surface of the shape memory alloy skeleton with a flexible adhesive (such as silicone), the deformation of the shape memory alloy skeleton causes the nanofiber filter layer to stretch or contract synchronously. In low-humidity environments, it is in a compressed, folded form, with a high pleat density in the nanofiber filter layer, resulting in a small filtration area. When the humidity exceeds 70%, the shape memory alloy skeleton is heated and unfolded into an extended form, stretching the pleats in the nanofiber filter layer and increasing the filtration area. After the nanofiber filter layer is stretched, its porosity increases from 60% to 85%, while its pore size expands from 1μm to 3μm, thus balancing high flow and PM2.5 interception requirements.

[0060] The expansion and contraction of the humidity-sensing dust-proof net 82 pulls the expansion and contraction plate assembly 83 to completely cover the air intake cover 81 . The expansion and contraction direction of the humidity-sensing dust-proof net 82 is limited by the limit bar 84 .

[0061] The shape memory alloy skeleton is made of nickel-titanium-based shape memory alloy, and the nickel atomic composition of the nickel-titanium-based shape memory alloy is adjusted to 55.5%; a polyacrylic acid hygroscopic coating is provided on the surface of the shape memory alloy skeleton.

[0062] When the nickel content increases from 54% to 56%, the phase transition temperature of the nickel-titanium shape memory alloy can rise from -50°C to 95°C. By optimizing the composition ratio, such as reducing the nickel atomic content to 55.5%, this approach achieves a phase transition temperature adjustment of the nickel-titanium shape memory alloy to between 25°C and 45°C, enabling the alloy to reliably trigger phase transitions within a normal temperature and humidity range.

[0063] The polyacrylic acid hygroscopic coating has a coating thickness of 50-200μm. It releases heat when absorbing moisture, thereby causing the temperature of the nickel-titanium-based shape memory alloy skeleton to rise to above 40°C when the humidity is >70%RH, reaching the phase transition point.

[0064] The moisture-absorbing layer is bonded to the nickel-titanium shape memory alloy skeleton with a highly thermally conductive adhesive. The adhesive boasts a thermal conductivity of >5W / m·K, ensuring rapid heat transfer into the nickel-titanium shape memory alloy, triggering the austenitic phase transformation. This adhesive, based on a silicone resin matrix and incorporating aluminum oxide and zinc oxide as thermally conductive fillers, creates a flexible elastomer suitable for the complex surface bonding and deformation requirements of this application.

[0065] The shape memory alloy skeleton is connected to the electric pulse generator through an electrical signal; humidity sensors are separately set in the areas of the transformer support beam 2, the micro-breaker mounting plate 3 and the main switch mounting plate 4.

[0066] The electric pulse generator and each humidity sensor are connected to the controller via electrical signals; when the temperature sensor in the cabinet 1 detects that the temperature is ≥50°C and the humidity is ≤60%RH, the controller applies an electric pulse heating to the shape memory alloy skeleton through the electric pulse generator, with a power of 10W for 5 seconds, thereby forcibly triggering the shape memory alloy skeleton to stretch, thereby driving the pleat density of the nanofiber filter layer to decrease to 50%, thereby forcing the cold air flow to increase by 150%, thereby achieving rapid heat dissipation in a high temperature and low humidity environment;

[0067] When the humidity is ≥80%RH and the temperature is ≤30℃, the controller controls the pulse intensity through the electric pulse generator, and then drives the nanofiber filter layer pleat density to be adjusted to 80% through the shape memory alloy skeleton. At the same time, the controller controls the cooling fan 7 on the top of the cabinet 1 to be turned off, and only reduces the risk of condensation in the cabinet 1 through natural convection, thereby improving the safety of the information display cabinet and greatly reducing power consumption.

[0068] As can be seen from the above, this case uses dual-mode control of automatic humidity adjustment and forced temperature adjustment to effectively solve the problem that traditional single-humidity control logic cannot actively enhance heat dissipation in high-temperature and dry scenarios; and then, by actively intervening in the phase change process of the shape memory alloy skeleton under specific working conditions, it improves adaptability to extreme environments.

[0069] The surface of the nanofiber filter layer is sprayed with fluorosilane.

[0070] While the nanofiber filter efficiently captures PM2.5 through electrostatic adsorption, PM2.5 and oily particles can clog pores over time, leading to increased pressure drop and reduced airflow. Furthermore, when humidity is too high, moisture neutralizes surface charge, weakening adsorption capacity. By spraying fluorosilane on the surface of the nanofiber filter, a super-hydrophobic layer is formed, reducing the adhesion between oily particles and the filter by 70%, allowing them to fall off due to gravity or airflow shear forces. Furthermore, when moisture condenses into beads and rolls off, it prevents the nanofiber filter from becoming wet and causing electrostatic failure, thus ensuring stable dust removal.

[0071] like Figures 8 to 10 As shown, one end of the humidity-sensing dust-proof net 82 is connected to the air inlet cover 81 through a piezoelectric ceramic vibrator 85 ; both sides of the piezoelectric ceramic vibrator 85 seal the ends of the humidity-sensing dust-proof net 82 through dust-proof sponges 86 .

[0072] The piezoelectric ceramic vibrator 85 is connected to the controller via an electrical signal. The controller controls the piezoelectric ceramic vibrator 85 to trigger high-frequency vibration once every 8 hours of operation, with an amplitude of 5 μm and a frequency of 40 Hz for 30 seconds, thereby detaching the particles attached to the humidity-sensing dustproof net 82.

[0073] like Figure 4 As shown, a dust box 87 is provided below the air intake cover 81 ; an electric telescopic door is provided on the upper end surface of the dust box 87 ; and the dust box 87 is fixedly connected to the cabinet 1 .

[0074] The electric telescopic door is connected to the controller via an electrical signal; the controller first controls the electric telescopic door to open before controlling the piezoelectric ceramic vibrator 85 to vibrate, so that the particles vibrated off by the piezoelectric ceramic vibrator 85 can fall into the dust collection box 87. After the piezoelectric ceramic vibrator 85 finishes vibrating, the controller controls the electric telescopic door to close, so that the fallen dust particles will not be sucked into the cabinet 1 again, thereby avoiding secondary pollution.

[0075] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are protected by the present invention.

Claims

1. An intelligent power distribution information display cabinet, comprising a cabinet body (1), a transformer joist (2), a micro-break switch mounting plate (3), a main switch mounting plate (4), an inner door panel (5), an outer door panel (6) and an information display screen (61); characterized in that: The cabinet (1) is provided with a transformer support beam (2), a micro-break switch mounting plate (3) and a main switch mounting plate (4) in vertical layers; the transformer support beam (2), the micro-break switch mounting plate (3) and the main switch mounting plate (4) are fixedly connected to the side wall of the cabinet (1) through an L-shaped angle bar; a heat insulation baffle (11) is provided between the transformer support beam (2), the micro-break switch mounting plate (3) and the main switch mounting plate (4); a flow port (31) is provided on each of the micro-break switch mounting plate (3) and the main switch mounting plate (4); the information display screen (61) is integrated with a touch module and embedded in the surface of the outer door panel (6); A heat dissipation fan (7) is provided on the top of the cabinet (1); an air intake dustproof component (8) is installed on the bottom of the cabinet (1); the upper end of the air intake dustproof component (8) is connected to a heat dissipation duct (9); the heat dissipation duct (9) passes through the heat insulation baffle (11), and air outlets (91) are separately provided in the areas corresponding to the transformer support beam (2), the micro-break switch mounting plate (3) and the main switch mounting plate (4); an air outlet adjustment unit (92) capable of separately adjusting the air volume is provided at each of the air outlets (91); temperature sensors are separately provided in the areas of the transformer support beam (2), the micro-break switch mounting plate (3) and the main switch mounting plate (4); The air intake dustproof component (8) comprises an air intake cover (81), a humidity-sensing dustproof net (82), a telescopic plate assembly (83) and a limit strip (84); the air intake cover (81) is connected to the lower end of the heat dissipation duct (9); a wavy folded humidity-sensing dustproof net (82) is arranged in the air intake cover (81); the humidity-sensing dustproof net (82) comprises a shape memory alloy skeleton and a nanofiber filter layer; the nanofiber filter layer is fixed to the wavy support surface of the shape memory alloy skeleton by a flexible adhesive; the shape memory alloy skeleton automatically adjusts the folding density of the nanofiber filter layer according to humidity changes; the upper and lower parts of the humidity-sensing dustproof net (82) are limited by the limit strip (84) fixedly connected to the air intake cover (81); one end of the humidity-sensing dustproof net (82) is connected to one side of the air intake cover (81); the other end of the humidity-sensing dustproof net (82) is connected to the other side of the air intake cover (81) by the telescopic plate assembly (83).

2. The intelligent power distribution information display cabinet according to claim 1, characterized in that: The air outlet adjustment unit (92) comprises a blade (921), a driving gear (922), a synchronous gear (923), a rack (924), an L-shaped guide bar (925) and a driving motor (926); the blades (921) are evenly spaced and rotatably connected in the air outlet (91) of the heat dissipation duct (9), and the spacing between adjacent blades (921) is smaller than the width of the blade (921); one end of the blade (921) is fixedly connected to the synchronous gear (923), and the adjacent blades (921) are fixedly connected to the synchronous gear (923). The synchronous gears (923) are meshed with each other; the rack (924) is meshed with all the synchronous gears (923); the rack (924) is slidably connected to the heat dissipation duct (9) through the L-shaped guide bar (925); the driving gear (922) is meshed with the rack (924); the driving gear (922) is fixedly connected to the rotating shaft of the driving motor (926); and the driving motor (926) is fixedly connected to the heat dissipation duct (9) through a support plate.

3. The intelligent power distribution information display cabinet according to claim 1, characterized in that: V-shaped flow balancing plates (93) are arranged in the heat dissipation duct (9); the V-shaped flow balancing plates (93) are arranged side by side and evenly spaced; the tips of the V-shaped flow balancing plates (93) face downward.

4. The intelligent power distribution information display cabinet according to claim 3, characterized in that: The V-shaped angle of the V-shaped current balancing plate (93) is 60°-90°.

5. The intelligent power distribution information display cabinet according to claim 1, characterized in that: The shape memory alloy skeleton is made of nickel-titanium-based shape memory alloy, and the nickel atomic composition of the nickel-titanium-based shape memory alloy is adjusted to 55.5%; a polyacrylic acid hygroscopic coating is provided on the surface of the shape memory alloy skeleton.

6. The intelligent power distribution information display cabinet according to claim 1, characterized in that: The shape memory alloy skeleton is connected to an electric pulse generator via an electric signal; and humidity sensors are separately provided in the areas of the transformer support beam (2), the micro-break switch mounting plate (3) and the main switch mounting plate (4).

7. The intelligent power distribution information display cabinet according to claim 1, characterized in that: The surface of the nanofiber filter layer is sprayed with fluorosilane.

8. The intelligent power distribution information display cabinet according to claim 7, characterized in that: One end of the humidity-sensing dust-proof net (82) is connected to the air inlet cover (81) via a piezoelectric ceramic vibrator (85); both sides of the piezoelectric ceramic vibrator (85) seal the ends of the humidity-sensing dust-proof net (82) via dust-proof sponges (86).

9. The intelligent power distribution information display cabinet according to claim 8, characterized in that: A dust collecting box (87) is provided below the air inlet cover (81); an electric telescopic door is provided on the upper end surface of the dust collecting box (87); and the dust collecting box (87) is fixedly connected to the cabinet (1).

Images