Integrated alternating current and direct current power supply cabinet for power equipment

Abstract

The invention discloses an integrated AC / DC power supply cabinet for power equipment, and relates to the field of power supply cabinets, the integrated AC / DC power supply cabinet comprises a power supply cabinet body, a cabinet door, a cable groove body and a ventilation net, the inner wall of the power supply cabinet body is provided with a plurality of mounting racks, the inner wall of the power supply cabinet body and the mounting racks are covered with a unidirectional absorption covering layer, and the power supply cabinet body is provided with a guide part; according to the integrated alternating current and direct current power supply cabinet, the installation frame is provided with electrical elements, the installation frame is provided with a surge protector, the surge protector is provided with a circuit protection switch, the interior of the cable trough body is divided into a cable storage chamber and a water absorption chamber, and the back face of the power supply cabinet body is provided with a one-way absorption covering layer, so that moisture and gas in the power supply cabinet body are effectively separated; moisture and gas are independently discharged, the circuit breaking influence of the moisture and the gas on electrical elements at the mounting racks is effectively reduced, a circuit protection switch and a surge protector are independently designed at each layer of the mounting racks, and the mounting racks are connected in parallel layer by layer, so that mutual influence is avoided, and multi-stage lightning protection is realized.

Description

Technical Field

[0001] This invention relates to the field of power supply cabinet technology, specifically to an integrated AC / DC power supply cabinet for power equipment. Background Technology

[0002] Power supply cabinets are key equipment in power systems used for distributing, controlling, and protecting electrical energy. They are widely used in substations, data centers, industrial plants, and other scenarios. Power supply cabinets occupy a vital part of power equipment. In the development of power equipment, in order to better achieve multi-functional effects, integrated DC power supply cabinets, due to their highly integrated intelligent power supply equipment, integrate DC operating power supplies, AC power supplies, UPS and communication power supply systems to achieve multi-energy collaborative management and centralized monitoring. They are widely used in substations, communication base stations and industrial scenarios.

[0003] In industry, integrated DC power supply cabinets are used in multi-energy scenarios such as photovoltaic power plants and wind power plants. Besides basic electrical components, these cabinets also contain multiple auxiliary components. For multi-energy scenarios like photovoltaic or wind power plants, the operating environment is more severe than in industrial plants, necessitating multi-level lightning protection. This multi-level protection typically involves installing surge protectors within the cabinet's mounting brackets. The various auxiliary electrical components within the integrated DC power supply cabinet are protected by a single surge protector. Surge protectors are used for lightning protection. In photovoltaic or wind power plants, the temperature inside the power cabinet is higher than the outside temperature. The mounting brackets for installing components and surge protectors inside the power cabinet are usually made of metal. Because the internal space of the power cabinet is small, the temperature, humidity, and pressure inside the power cabinet are all higher than outside. Under high temperature and high pressure conditions, the metal brackets for installing surge protectors and the gaskets used for installation may loosen. When the environment inside the power cabinet becomes humid, the loose parts of the surge protector and the mounting bracket are prone to open circuits, which is not conducive to the lightning protection of various auxiliary components in the integrated AC / DC power cabinet. Therefore, we propose an integrated AC / DC power cabinet for power equipment. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated AC / DC power supply cabinet for power equipment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an integrated AC / DC power supply cabinet for power equipment, comprising a power supply cabinet body and a cabinet door installed on the power supply cabinet body. The bottom of the power supply cabinet body is a cable trough, and ventilation meshes are provided on both side walls of the power supply cabinet body. Multiple mounting brackets are installed on the inner wall of the power supply cabinet body, and the inner wall of the power supply cabinet body and the mounting brackets are covered with a unidirectional absorbent coating. A guide component is provided on the back of the power supply cabinet body. Multiple electrical components are installed on each mounting bracket, and the multiple electrical components are connected by wires. A surge protector is installed at the end of the mounting bracket, and a circuit protection switch is installed on one side of the surge protector. The circuit protection switch on each mounting bracket and the electrical components on the mounting bracket are connected in parallel. The bottom circuit protection switch is connected to the bottom of the incoming cable, and the top circuit protection switch is connected to the meter, and the meter is connected to the outgoing cable. The cable trough body is divided into a cable storage chamber and a water absorption chamber. The guide component is located in the water absorption chamber, and one end of the incoming cable and the outgoing cable are both located in the cable storage chamber.

[0006] Preferably, the mounting frame includes an I-beam frame, the middle plate of the I-beam frame has multiple mounting holes, and locking adjustment holes are symmetrically distributed among the mounting holes. A cooling grid is provided at the upper part of the I-beam frame, and a sloping surface is provided at the lower part of the I-beam frame.

[0007] Preferably, the two ends of the I-beam frame are respectively connected to reinforcing ribs, the middle of the reinforcing ribs is provided with a bending protection zone, and the reinforcing ribs are fixed to the side wall of the power cabinet by screws.

[0008] Preferably, the back of the power cabinet is provided with a water absorption cavity, and the outside of the water absorption cavity is provided with a sealing groove. The outside of the water absorption cavity is provided with a sealing plate, and the sealing plate is provided with a sealing strip that is interference-fitted with the sealing groove. The unidirectional absorbent layer inside the water absorption cavity is distributed at an angle, and the bottom of the water absorption cavity is provided with a water guiding slope.

[0009] Preferably, the top of the cable trough is provided with multiple bend holes, the power cabinet is provided with multiple mounting holes, a semi-circular cover is provided in the mounting hole, and one end of the semi-circular cover is connected to a bend. The bend passes through the bend hole and is located in the water absorption chamber. A plug is provided on both sides of the semi-circular cover, and an inclined surface is provided on the plug.

[0010] Preferably, the guiding component includes protective housings disposed on both sides of the water absorption chamber, with guide rails provided on the protective housings. Electromagnetic blocks are connected to both ends of the protective housings, and the two electromagnetic blocks are connected by wires. A sliding metal block slides inside the protective housing, and the sliding metal block is connected to the top of the protective housing by a spring. A curved rod passing through the guide rail is connected to the sliding metal block, and a brush roller is connected between the two curved rods. The brush roller acts on the surface of the unidirectional absorption coating.

[0011] Preferably, the sealing plate has an exhaust layer, which is a breathable membrane, and the brush roller has multiple velvet strips distributed at equal angles.

[0012] Preferably, the bottom of the plurality of bent tubes is connected to an absorbent capsule, the absorbent capsule contains a plurality of absorbent layers, and each absorbent layer is filled with a drying medium.

[0013] Preferably, a partition is provided between the cable storage chamber and the water absorption chamber, and the partition has a water-absorbing and breathable membrane, and ventilation holes are provided on both sides of the cable trough.

[0014] Preferably, both the incoming and outgoing cables are covered with cable shielding layers. One end of the cable shielding layer is connected to a sleeve, and an insulating sealing gasket is connected to the top of the sleeve. The cable trough has an inlet and an outlet. The insulating sealing gasket is fitted over the incoming cable and passes through the inlet. The insulating sealing gasket is fitted over the outgoing cable and passes through the outlet. A grounding rod is provided on the outside of the cable shielding layer, and the grounding rods are distributed at an angle.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention effectively separates moisture and gas inside the power cabinet by setting a unidirectional absorption layer on the back of the power cabinet and maintaining gas flow inside the cabinet through a ventilation mesh on the side wall of the power cabinet. The moisture and gas are discharged separately, which effectively reduces the impact of moisture and gas on the circuit breaking of electrical components at the mounting rack. At the same time, each mounting rack is designed with a separate circuit protection switch and surge protector, and each mounting rack is connected in parallel layer by layer, thus avoiding mutual interference and realizing multi-level lightning protection inside the power cabinet.

[0017] In this invention, the incoming and outgoing cables are isolated and protected by a cable shielding layer, which avoids electromagnetic interference between the incoming and outgoing cables. Multiple inclined grounding rods installed on the cable shielding layer ground the electromagnetic leads of the incoming and outgoing cables from inside the power cabinet, thus preventing lightning-induced circuit breaks. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the present invention from a bottom view;

[0021] Figure 4 This is a schematic diagram of the structure of the sealing plate of the present invention after it is opened from the water absorption cavity;

[0022] Figure 5This is a schematic diagram of the power cabinet structure after the cabinet door of the present invention is opened;

[0023] Figure 6 This is a schematic diagram showing the distribution of electrical components on the mounting bracket;

[0024] Figure 7 This is a schematic diagram of a single mounting bracket.

[0025] Figure 8 This is a schematic diagram of the cable shielding layer structure;

[0026] Figure 9 This is a schematic diagram of the internal structure of the power supply cabinet;

[0027] Figure 10 This is a schematic diagram of the structure of the guide component and the bend in the pipe body of the present invention;

[0028] Figure 11 A schematic diagram of the internal structure of the protective casing;

[0029] Figure 12 This is a schematic diagram of the structure of the water absorption cavity in this invention;

[0030] Figure 13 This is a schematic diagram of the back structure of the sealing plate;

[0031] Figure 14 for Figure 12 Enlarged structural diagram of region A in the middle;

[0032] Figure 15 This is a schematic diagram of a single-phase absorption coating.

[0033] In the diagram: 1-Power cabinet; 2-Cable trough; 3-Mounting bracket; 4-One-way absorbent membrane; 5-Guiding component; 6-Water absorption chamber; 7-Sealing plate; 8-Semi-circular cover; 9-Cable shielding layer; 11-Cabinet door; 12-Ventilation mesh; 13-Electrical component; 14-Surge protector; 15-Circuit protection switch; 16-Incoming cable; 17-Meter; 18-Outgoing cable; 19-Hosting hole; 21-Cable storage compartment; 22-Water absorption chamber; 23-Bend hole; 24-Partition; 25-Water-absorbing and breathable membrane; 26-Ventilation hole; 27-Inlet; 28-Outgoing cable 31-I-frame; 32-Mounting hole; 33-Locking adjustment hole; 34-Cooling mesh; 35-Sloping surface; 36-Reinforcing rib; 37-Bending protection zone; 38-Screw; 51-Protective housing; 52-Guide rail; 53-Electromagnetic block; 54-Sliding metal block; 55-Spring; 56-Curved rod; 57-Brush roller; 58-Flannel strip; 61-Sealing groove; 62-Water guide slope; 71-Sealing strip; 72-Exhaust layer; 81-Bend tube body; 82-Plug; 83-Absorbing bladder body; 84-Absorbing layer; 91-Sleeve; 92-Insulating sealing gasket; 93-Grounding rod. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-15 This invention provides a technical solution: an integrated AC / DC power supply cabinet for power equipment, including a power cabinet body 1 and a cabinet door 11 installed on the power cabinet body 1. The cabinet door 11 is equipped with a viewing window and a control operation switch. During normal use of the integrated AC / DC power supply cabinet, the power configuration settings inside the integrated AC / DC power supply cabinet are adjusted by operating the control operation switch on the cabinet door 11. The cabinet door 11 is connected to the power cabinet body 1 by a hinge. A sealing door lock is installed on one side of the cabinet door 11. When it is necessary to open the cabinet door 11 to inspect the electrical components inside the power cabinet body 1, the cabinet door 11 is opened from the closed position by pressing the handle on the cabinet door 11. The bottom of the power cabinet body 1 is a cable tray 2. Ventilation mesh 12 is provided on both side walls of the power cabinet body 1. Multiple mounting brackets 3 are installed on the inner wall of the power cabinet body 1, and the inner wall of the power cabinet body 1 and the mounting brackets 3 are covered with a one-way absorbent coating 4. A guide component 5 is provided on the back of the power cabinet body 1.

[0036] Each mounting rack 3 has multiple electrical components 13 installed on it, and these components are connected by wires. A surge protector 14 is installed at the end of each mounting rack 3, and a circuit protection switch 15 is installed on one side of each surge protector 14. The circuit protection switches 15 on each mounting rack 3 and the electrical components 13 on each rack 3 are connected in parallel. The bottom circuit protection switch 15 is connected to an incoming cable 16, and the top circuit protection switch 15 is connected to a meter 17, which is connected to an outgoing cable 18. The components are installed sequentially from top to bottom inside the power cabinet 1, as shown in the attached diagram. Figure 5 -Appendix Figure 6As shown, the topmost meter 17 is installed first. Then, circuit protection switches 15, surge protectors 14, and various electrical components 13 are installed sequentially on the next layer's mounting rack 3. The circuit protection switches 15, surge protectors 14, and various electrical components 13 on each layer are connected in series. After installing the circuit protection switches 15, surge protectors 14, and various electrical components 13 on each layer's mounting rack, the incoming cable 16 enters from the inlet 27 and connects to the bottommost mounting rack 3. Then, the circuit protection switches 15 at the ends of each mounting rack 3 are connected in parallel. Finally, all the wires are gathered from the meter 7 and connected to the power cabinet. The other side of the body 1 is tied together to form the outgoing cable 18. The outgoing cable 18 passes through the outlet 28 and is inserted into the cable trough 2. In this way, the electrical components 13 on each layer of the mounting frame 3 are individually protected by circuit protection switches 15 and surge protectors 14, as well as lightning protection. The incoming cable 16 and the outgoing cable 18 are isolated and protected by the cable shielding layer 9 to avoid electromagnetic interference between the incoming cable 16 and the outgoing cable 18. Multiple inclined grounding rods 93 installed on the cable shielding layer 9 ground the electromagnetic leads of the incoming cable 16 and the outgoing cable 18 from the inside of the power cabinet 1 to avoid lightning circuit.

[0037] The cable trough 2 is divided into a cable storage chamber 21 and a water absorption chamber 22. The guide component 5 is located in the water absorption chamber 22, and one end of the inlet cable 16 and the outlet cable 18 are both located in the cable storage chamber 21.

[0038] The mounting frame 3 includes an I-beam frame 31. The middle plate of the I-beam frame 31 has multiple mounting holes 32, and the mounting holes 32 are symmetrically distributed with locking adjustment holes 33. The upper part of the I-beam frame 31 has a cooling grid 34, and the lower part of the I-beam frame 31 has a sloping surface 35.

[0039] The two ends of the I-beam frame 31 are respectively connected to reinforcing ribs 36, and a bending protection zone 37 is provided in the middle of the reinforcing ribs 36. The reinforcing ribs 36 are fixed to the side wall of the power cabinet 1 by screws 38.

[0040] The upper part of the mounting frame 3 is a cooling grid 34, and the lower part of the mounting frame 3 is a sloping surface 35 that is in contact with the unidirectional absorption layer 4, as shown in the attached figure. Figure 7 As shown, the gas inside the power cabinet 1 is cooled upon contact with the cooling grid 34, which first prevents the high-temperature hot air from accumulating and lingering on the surface of the mounting bracket 3, thereby reducing the risk of loosening of various electrical components 13 and surge protectors 14 on the mounting bracket 3. The air, after preliminary cooling, is introduced into the one-way absorption layer 4 through the ramp 35. Both high-temperature gas and humid gas can be filtered through the upper cooling grid 34 and then introduced into the one-way absorption layer 4 through the ramp 35. A schematic diagram of the distribution of the one-way absorption layer 4 is attached. Figure 14 As shown, the area with the large opening is flush with the back of the mounting bracket 3, so that airflow enters through the large opening and converges at the small opening. Gas enters the water absorption chamber 6 through the one-way breathable membrane, while the absorbed water enters the water absorption chamber 6 through the hollow membrane in the middle. Because it is a one-way design, water and gas can only enter the water absorption chamber 6 in one direction and will not flow back into the power cabinet 1. This can maintain the balance of airflow and humidity inside the power cabinet 1, thereby reducing the possibility of the mounting bracket 3 becoming loose.

[0041] The unidirectional absorbing layer (4) is a composite multilayer functional material whose basic structural unit is a triangular region array. Each triangular unit consists of the following parts:

[0042] Large opening end: facing the inside of the power cabinet, the opening area accounts for 70-80% of the base of the triangle, which facilitates the entry of gas and water molecules; Small opening end: facing the water absorption chamber (6), the opening area is only 20-30% of the large opening, forming a converging structure; Three-sided structure: each side is composed of membrane materials with different functions.

[0043] Material selection for one-way breathable membrane: Substrate: polytetrafluoroethylene (PTFE) microporous membrane or polypropylene (PP) meltblown microfiber membrane; Functional layer is divided into hydrophilic and hydrophobic gradient composite layer; Thickness range is 0.05-0.15mm; Its structural characteristics are: from the direction of large opening to small opening, the pore size gradually decreases from 5-10μm to 0.1-0.5μm; Surface treatment of one-way breathable membrane: Air inlet side (facing the cabinet): plasma treated, surface energy about 72mN / m, with superhydrophilicity; Air outlet side (facing the water absorption cavity): coated with fluorinated silane, surface energy about 18mN / m, with strong hydrophobicity.

[0044] The one-way permeation mechanism is driven by capillary force difference: the capillary force on the small pore side (ΔP=2γcosθ / r) is much greater than that on the large pore side; surface energy gradient: after the hydrophilic side absorbs water, it forms a liquid film and moves to the hydrophobic side under the pressure difference.

[0045] Molecular sieve effect: Water molecules with a diameter of about 0.27nm can pass through, while most dust particles (>0.5μm) are blocked; Air permeability parameters: Water vapor transmission rate: ≥5000g / m²·24h (forward); Reverse transmission rate: ≤50g / m²·24h; Air permeability: ≥5L / cm²·min·kPa (when the forward pressure difference is 0.1kPa).

[0046] Preparation methods: Dry biaxial stretching process (PTFE membrane), meltblown-electrospinning composite process (PP membrane), and Gore ePTFE membrane (USA) or Nitto Denko Breathable film series (Japan) can be used.

[0047] Hollow fiber membrane (water-absorbing medium carrier) material selection: Membrane material: polyethersulfone (PES) or cellulose acetate hollow fiber membrane; Internal filling medium: silica gel, molecular sieve, activated carbon composite adsorbent; Fiber diameter: outer diameter 0.8-1.2mm, inner diameter 0.5-0.8mm.

[0048] Hollow membrane wall structure: asymmetric structure, with a dense layer (0.1-0.3μm) on the inner surface and a sponge-like porous layer on the outer surface; porosity: 70-80%, pore size distribution: 0.01-10μm; adsorbent filling: the hollow cavity is filled with a mixture of 13X molecular sieve (pore size 0.9nm) and silica gel in a ratio of 6:4.

[0049] Water absorption mechanism of hollow fiber membranes: physical adsorption, where the microporous structure of molecular sieves adsorbs water molecules through van der Waals forces; chemical adsorption, where the silanol groups on the surface of silica gel form hydrogen bonds with water molecules; and capillary coagulation, which occurs when the relative humidity is >40%.

[0050] The preparation process of the membrane layer is as follows: substrate preparation, pretreatment of non-woven fabric substrate (80-100 g / m²); membrane lamination: first step, the unidirectional breathable membrane is bonded together by hot melt adhesive dot matrix bonding (bonding area 30-40%); second step, hollow membrane bundles are arranged in a triangular pattern and fixed by ultrasonic welding; third step, outer protective layer (PET mesh, 2 mm pore size); functionalization treatment: hydrophilic treatment with acrylic graft polymerization; antibacterial treatment with nano silver or quaternary ammonium salt impregnation.

[0051] The back of the power cabinet 1 is provided with a water absorption cavity 6, and the outside of the water absorption cavity 6 is provided with a sealing groove 61. The outside of the water absorption cavity 6 is provided with a sealing plate 7, and the sealing plate 7 is provided with a sealing strip 71 that is interference-fitted with the sealing groove 61. The unidirectional absorption layer 4 inside the water absorption cavity 6 is inclined, and the bottom of the water absorption cavity 6 is provided with a water guiding slope 62.

[0052] The top of the cable trough 2 is provided with multiple bend holes 23, and the power cabinet 1 is provided with multiple mounting holes 19. A semi-circular cover 8 is provided in the mounting hole 19, and one end of the semi-circular cover 8 is connected to a bend 81. The bend 81 passes through the bend hole 23 and is located in the water absorption chamber 22. A plug 82 is provided on both sides of the semi-circular cover 8, and an inclined surface is provided on the plug 82.

[0053] The guiding component 5 includes protective housings 51 disposed on both sides of the water absorption chamber 6. Guide rails 52 are provided on the protective housings 51. Electromagnetic blocks 53 are connected to both ends of the protective housings 51, and the two electromagnetic blocks 53 are connected by wires. A sliding metal block 54 slides inside the protective housings 51, and the sliding metal block 54 is connected to the top of the protective housings 51 by a spring 55. A curved rod 56 passing through the guide rails 52 is connected to the sliding metal block 54, and a brush roller 57 is connected between the two curved rods 56. The brush roller 57 acts on the surface of the unidirectional absorption layer 4. By activating or deactivating the electromagnetic blocks 53 on the protective housings 51, the electromagnetic blocks 53 generate an electromagnetic effect through the switching on and off of power, thereby producing magnetic attraction. The electromagnetic block 53 uses existing electromagnetic suction blocks, which are existing technologies and will not be described in detail. When the electromagnetic block 53 at the bottom of the protective shell 51 is energized, it generates magnetic attraction. When the electromagnetic block 53 at the top of the protective shell 51 is de-energized, the sliding metal block 54 is attracted and pulled under the magnetic attraction of the bottom electromagnetic block 53, so that the sliding metal block 54 slides along the protective shell 51. The two ends of the brush roller 57 are fixedly connected to the sliding metal block 54 through the crank rod 56, so that when the sliding metal block 54 is pulled, the crank rod 56 slides along the guide rail 52. Thus, the brush roller 57 moves along the guide rail 52 and brushes the unidirectional absorption layer 4, thereby accelerating the removal of moisture from the unidirectional absorption layer 4.

[0054] The sealing plate 7 has an exhaust layer 72, which is a breathable membrane. The brush roller 57 has multiple velvet strips 58 distributed at equal angles. The velvet strips 58 contact the unidirectional absorption layer 4 to avoid wear on the unidirectional absorption layer 4, and at the same time, it helps to scrape off the moisture remaining on the unidirectional absorption layer 4. The bottom of each of the multiple bent tubes 81 is connected to an absorption capsule 83. Multiple absorption layers 84 are distributed within the absorption capsule 83, and each absorption layer 84 is filled with a drying medium. After water is introduced into the water absorption chamber 6 from the power cabinet 1, the water slides down the surface of the inclined unidirectional absorption layer 4 until it reaches the bottom slope 35. Because multiple semi-circular covers 8 are installed at the lower part of the slope 35, and the openings of the upper parts of the semi-circular covers 8 face the slope 35, the absorbed water can enter the bent tube 81 along the semi-circular covers 81, and then enter the absorption capsule 83 along the bent tube 81, where it is absorbed by the activated carbon distributed in the absorption layer 84. The system effectively dries water, and because water molecules are guided to flow through the inclined surfaces of the plugs 82 on both sides of the semi-circular cover 8, water is prevented from remaining in the semi-circular cover 8. The multi-layered absorption layer 84 inside the absorption bladder 83 can be replaced as a whole by disassembling the absorption bladder 83 and replacing the desiccant inside. Because ventilation holes 26 are opened on the side wall of the cable tray 2, the air flow inside the cable tray 2 is improved. The water-absorbing and breathable membrane 25 on the partition 24 effectively prevents moisture introduced from the power cabinet 1 into the water absorption chamber 22 and into the cable storage chamber 21, thereby protecting the incoming cable 16 and outgoing cable 18 in the cable storage chamber 21.

[0055] A partition 24 is provided between the cable storage chamber 21 and the water absorption chamber 22, and a water-absorbing and breathable membrane 25 is provided on the partition 24. Ventilation holes 26 are provided on both sides of the cable trough 2.

[0056] Both the incoming cable 16 and the outgoing cable 18 are covered with a cable shielding layer 9. One end of the cable shielding layer 9 is connected to a sleeve 91, and an insulating sealing gasket 92 is connected to the top of the sleeve 91. The cable trough 2 has an inlet 27 and an outlet 28. The insulating sealing gasket 92 is fitted over the outside of the incoming cable 16 and passes through the inlet 27. The insulating sealing gasket 92 is fitted over the outside of the outgoing cable 18 and passes through the outlet 28. A grounding rod 93 is provided on the outside of the cable shielding layer 9, and the grounding rod is distributed at an angle.

[0057] In practical use: A viewing window and a control switch are installed on the cabinet door 11. During normal use of the integrated AC / DC power supply cabinet, the power configuration settings inside the integrated AC / DC power supply cabinet are adjusted by operating the control switch on the cabinet door 11. The cabinet door 11 is connected to the power cabinet body 1 by a hinge. A sealing door lock is installed on one side of the cabinet door 11. When it is necessary to open the cabinet door 11 to inspect the electrical components inside the power cabinet body 1, the cabinet door 11 is opened from the closed position by pressing the handle on the cabinet door 11.

[0058] When installing electrical components inside the power cabinet 1, the mounting bracket 3 must first be fixedly installed inside the power cabinet 1. Based on the pre-drilled holes inside the power cabinet 1, align the holes on the reinforcing ribs 36 at both ends of the mounting bracket 3 with the holes on the side wall of the power cabinet 1. Then, fix the reinforcing ribs 36 to the side wall of the power cabinet 1 using screws 38. At this point, the I-shaped side wall of the mounting bracket 3 will be flush with the unidirectional absorption layer 4 (as shown in the attached diagram). Figure 15 As shown, the structure comprises multiple triangular regions, where the triangular sides of each region are one-way breathable membranes, and the interior of each region is a hollow membrane containing a water-absorbing medium. The larger opening of each triangular region faces the interior of the power supply cabinet 1, and the smaller opening faces the water absorption chamber 6. Figure 5 As shown, the upper part is a large opening in a triangular region, facing the interior of the power cabinet 1, and the lower part is a small opening in a triangular region, facing the water absorption chamber 6.

[0059] After the mounting bracket 3 is installed inside the power cabinet 1, proceed with the installation from top to bottom inside the power cabinet 1, as shown in the attached diagram. Figure 5 -Appendix Figure 6As shown, the topmost meter 17 is installed first. Then, circuit protection switches 15, surge protectors 14, and various electrical components 13 are installed sequentially on the next layer's mounting rack 3. The circuit protection switches 15, surge protectors 14, and various electrical components 13 on each layer are connected in series. After installing the circuit protection switches 15, surge protectors 14, and various electrical components 13 on each layer's mounting rack, the incoming cable 16 enters from the inlet 27 and connects to the bottommost mounting rack 3. Then, the circuit protection switches 15 at the ends of each mounting rack 3 are connected in parallel. Finally, all the wires are gathered from the meter 7 and connected to the power cabinet. The other side of the body 1 is tied together to form the outgoing cable 18. The outgoing cable 18 passes through the outlet 28 and is inserted into the cable trough 2. In this way, the electrical components 13 on each layer of the mounting frame 3 are individually protected by circuit protection switches 15 and surge protectors 14, as well as lightning protection. The incoming cable 16 and the outgoing cable 18 are isolated and protected by the cable shielding layer 9 to avoid electromagnetic interference between the incoming cable 16 and the outgoing cable 18. Multiple inclined grounding rods 93 installed on the cable shielding layer 9 ground the electromagnetic leads of the incoming cable 16 and the outgoing cable 18 from the inside of the power cabinet 1 to avoid lightning circuit.

[0060] To maintain a balance of temperature, air pressure, and humidity inside the power cabinet 1, two ventilation grilles 12 are installed on the side walls of both sides of the power cabinet 1. This effectively improves airflow inside the power cabinet 1. Additionally, when there is excessive humidity or high temperature inside the power cabinet 1, the upper part of the mounting bracket 3 is a cooling mesh 34, and the lower part of the mounting bracket 3 is a sloping surface 35 that adheres to the unidirectional absorption layer 4, as shown in the attached diagram. Figure 7 As shown, the gas inside the power cabinet 1 is cooled upon contact with the cooling grid 34, which first prevents the high-temperature hot air from accumulating and lingering on the surface of the mounting bracket 3, thereby reducing the risk of loosening of various electrical components 13 and surge protectors 14 on the mounting bracket 3. The air, after preliminary cooling, is introduced into the one-way absorption layer 4 through the ramp 35. Both high-temperature gas and humid gas can be filtered through the upper cooling grid 34 and then introduced into the one-way absorption layer 4 through the ramp 35. A schematic diagram of the distribution of the one-way absorption layer 4 is attached. Figure 14 As shown, the area with the large opening is flush with the back of the mounting bracket 3, so that airflow enters through the large opening and converges at the small opening. Gas enters the water absorption chamber 6 through the one-way breathable membrane, while the absorbed water enters the water absorption chamber 6 through the hollow membrane in the middle. Because it is a one-way design, water and gas can only enter the water absorption chamber 6 in one direction and will not flow back into the power cabinet 1. This can maintain the balance of airflow and humidity inside the power cabinet 1, thereby reducing the possibility of the mounting bracket 3 becoming loose.

[0061] When airflow and moisture from inside the power cabinet 1 are introduced into the water absorption chamber 6, the gas, being lighter than water molecules, floats at the upper part of the chamber, while the absorbed water molecules are located at the lower part. Due to the inclined arrangement of the unidirectional absorption layer 4 within the chamber 6, the moisture introduced from the power cabinet 1 slides down the surface of the inclined unidirectional absorption layer 4 until it reaches the bottom slope 35. Because multiple semi-circular covers 8 are positioned at the lower part of the slope 35, with the openings of the semi-circular covers 8 facing the slope 35, the absorbed moisture can then enter the bent pipe 81 along the semi-circular covers 8, and then enter the absorption capsule 8 along the bent pipe 81. Inside the 3, activated carbon distributed in the absorption layer 84 absorbs and dries the water. At the same time, because water molecules are guided to flow through the inclined surfaces of the plugs 82 on both sides of the semi-circular cover 8, water molecules are prevented from remaining in the semi-circular cover 8. The multi-layer absorption layer 84 inside the absorption bag 83 can be replaced as a whole. The absorption bag 83 can be disassembled and the desiccant inside can be replaced. Because ventilation holes 26 are opened on the side wall of the cable tray 2, the air flow inside the cable tray 2 is improved. The water-absorbing and breathable membrane 25 on the partition 24 effectively prevents moisture introduced from the power cabinet 1 into the water absorption chamber 22 from entering the cable storage chamber 21, thereby protecting the incoming cable 16 and outgoing cable 18 in the cable storage chamber 21.

[0062] For the gas remaining in the water absorption chamber 6, since an exhaust layer 72 is provided on the sealing plate 7, the excess gas absorbed is discharged from the exhaust layer 72, effectively separating the moisture and gas inside the power cabinet 1 and discharging the moisture and gas separately, effectively reducing the impact of moisture and gas on the circuit breakers of the electrical components 13 at the mounting bracket 3.

[0063] To ensure rapid drainage of water absorbed from the unidirectional absorption layer 4 within the absorption chamber 6, the water is introduced into the absorption bag 83 from the curved tube 81. The electromagnetic block 53 on the protective shell 51 is activated or deactivated. The electromagnetic block 53 generates an electromagnetic effect through power switching, thus producing a magnetic attraction force. The electromagnetic block 53 uses existing electromagnetic attraction blocks, which are not described in detail here. When the electromagnetic block 53 at the bottom of the protective shell 51 is energized, it generates a magnetic attraction force; when the electromagnetic block 53 at the top of the protective shell 51 is de-energized, the sliding metal block 54 is attracted and pulled under the magnetic attraction force of the bottom electromagnetic block 53, causing it to slide along the protective shell 51. The brush roller 57 is fixedly connected to the sliding metal block 54 at both ends via a crank 56. When the sliding metal block 54 is pulled, the crank 56 slides along the guide rail 52, causing the brush roller 57 to move along the guide rail 52 and brush the surface of the unidirectional absorption layer 4, thereby accelerating the removal of water from the unidirectional absorption layer 4.

[0064] Compared with existing technologies, common solutions include: Ventilation and heat dissipation type: using a fan + filter; disadvantages: bringing in external moisture and dust, poor moisture-proof effect; Sealed drying type: silica gel desiccant + sealed cabinet; disadvantages: poor heat dissipation, temperature rise can reach 20-30℃, frequent desiccant replacement required, maintenance cycle: desiccant needs to be replaced or regenerated every 1-3 months; Air conditioning type: small refrigeration unit; disadvantages: high energy consumption (200-500W), risk of condensation.

[0065] The advantages of this solution include: Dynamic balance control: achieving synchronous temperature and humidity regulation, rather than conventional single control; Passive zero-energy operation: zero additional energy consumption, utilizing only the natural pressure difference inside and outside the cabinet (0.1-0.3kPa), saving electricity compared to air-conditioning models; Multi-level protection: First level: cooling grid pre-cooling and dehumidification; Second level: one-way breathable membrane selective permeation (moisture removal rate greater than existing technologies); Third level: hollow membrane deep adsorption (removal of residual moisture); Dust and corrosion protection: excellent particulate matter filtration efficiency.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated AC / DC power supply cabinet for power equipment, comprising a power supply cabinet body (1) and a cabinet door (11) installed on the power supply cabinet body (1), characterized in that: The bottom of the power cabinet (1) is a cable trough (2), and ventilation mesh (12) is provided on both sides of the power cabinet (1). Multiple mounting brackets (3) are installed on the inner wall of the power cabinet (1), and the inner wall of the power cabinet (1) and the mounting brackets (3) are covered with a one-way absorption layer (4). A guide component (5) is provided on the back of the power cabinet (1). Each mounting bracket (3) is equipped with multiple electrical components (13), and the multiple electrical components (13) are connected by wires. A surge protector (14) is installed at the end of the mounting bracket (3), and a circuit protection switch (15) is installed on one side of the surge protector (14). The circuit protection switch (15) on each mounting bracket (3) and the electrical components (13) on the mounting bracket (3) are connected in parallel. The bottom circuit protection switch (15) is connected to the bottom of the incoming cable (16), and the top circuit protection switch (15) is connected to the meter (17), and the meter (17) is connected to the outgoing cable (18). The cable trough (2) is divided into a cable storage chamber (21) and a water absorption chamber (22). The guide component (5) is located in the water absorption chamber (22), and one end of the inlet cable (16) and the outlet cable (18) are both located in the cable storage chamber (21).

2. The integrated AC / DC power supply cabinet for power equipment according to claim 1, characterized in that: The mounting frame (3) includes a frame (31), with multiple mounting holes (32) on the middle plate of the frame (31), and locking adjustment holes (33) symmetrically distributed on the mounting holes (32). A cooling grid (34) is provided at the upper part of the frame (31), and a slope surface (35) is provided at the lower part of the frame (31).

3. The integrated AC / DC power supply cabinet for power equipment according to claim 2, characterized in that: The two ends of the I-beam frame (31) are respectively connected to reinforcing ribs (36), and the middle of the reinforcing ribs (36) is provided with a bending protection zone (37). The reinforcing ribs (36) are fixed to the side wall of the power cabinet (1) by screws (38).

4. The integrated AC / DC power supply cabinet for power equipment according to claim 1, characterized in that: The back of the power cabinet (1) is provided with a water absorption cavity (6), and the outside of the water absorption cavity (6) is provided with a sealing groove (61). The outside of the water absorption cavity (6) is provided with a sealing plate (7), and the sealing plate (7) is provided with a sealing strip (71) that is interference fit with the sealing groove (61). The unidirectional absorption layer (4) inside the water absorption cavity (6) is distributed at an inclination, and the bottom of the water absorption cavity (6) is provided with a water guiding slope (62).

5. An integrated AC / DC power supply cabinet for power equipment according to claim 4, characterized in that: The top of the cable trough (2) is provided with multiple bend holes (23), and the power cabinet (1) is provided with multiple mounting holes (19). A semi-circular cover (8) is provided in the mounting hole (19), and one end of the semi-circular cover (8) is connected to a bend (81). The bend (81) passes through the bend hole (23) and is located in the water absorption chamber (22). A plug (82) is provided on both sides of the semi-circular cover (8), and an inclined surface is provided on the plug (82).

6. The integrated AC / DC power supply cabinet for power equipment according to claim 4, characterized in that: The guiding component (5) includes a protective housing (51) disposed on both sides of the water absorption chamber (6). A guide rail (52) is provided on the protective housing (51). Electromagnetic blocks (53) are connected to both ends of the protective housing (51), and the two electromagnetic blocks (53) are connected by wires. A sliding metal block (54) slides inside the protective housing (51), and the sliding metal block (54) is connected to the top of the protective housing (51) by a spring (55). A curved rod (56) passing through the guide rail (52) is connected to the sliding metal block (54), and a brush roller (57) is connected between the two curved rods (56). The brush roller (57) acts on the surface of the unidirectional absorption layer (4).

7. An integrated AC / DC power supply cabinet for power equipment according to claim 6, characterized in that: The sealing plate (7) has an exhaust layer (72) which is a breathable membrane, and the brush roller (57) has multiple velvet strips (58) distributed at equal angles.

8. An integrated AC / DC power supply cabinet for power equipment according to claim 5, characterized in that: The bottom of each of the multiple bent tubes (81) is connected to an absorption bladder (83), and the absorption bladder (83) contains multiple absorption layers (84), and each absorption layer (84) is filled with a drying medium.

9. An integrated AC / DC power supply cabinet for power equipment according to claim 8, characterized in that: A partition (24) is provided between the cable storage chamber (21) and the water absorption chamber (22), and a water-absorbing and breathable membrane (25) is provided on the partition (24). Ventilation holes (26) are provided on both sides of the cable trough (2).

10. An integrated AC / DC power supply cabinet for power equipment according to claim 9, characterized in that: Both the incoming cable (16) and the outgoing cable (18) are covered with a cable shield (9). One end of the cable shield (9) is connected to a sleeve (91), and an insulating sealing gasket (92) is connected to the top of the sleeve (91). The cable trough (2) has an inlet (27) and an outlet (28). The insulating sealing gasket (92) is placed outside the incoming cable (16) and passes through the inlet (27). The insulating sealing gasket (92) is placed outside the outgoing cable (18) and passes through the outlet (28). A grounding rod (93) is provided outside the cable shield (9), and the grounding rod is distributed at an angle.

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