A power distribution cabinet with constant temperature and moisture-proof function

Abstract

The application discloses a power distribution cabinet with constant-temperature and moisture-proof functions, which comprises a box body, a first temperature control device, a second temperature control device, a dust removal device, a rainproof device, an exhaust fan, a four-opening door and an electric control unit box, the first temperature control device and the second temperature control device are arranged on the two sides of the inside of the box body correspondingly, the dust removal device is arranged on the two sides of the first temperature control device and the second temperature control device, the rainproof device is fixedly arranged on the top of the box body, the exhaust fan which is communicated with the inside of the box body is arranged on the lower end of the rainproof device, the four-opening door which can be opened and closed is assembled on the front of the box body, and the electric control unit box is arranged on the outer wall of the box body, the symmetrical temperature control device structure is adopted, the whole power distribution cabinet can be uniformly and constantly temperature-controlled, the multiple structures such as the condenser pipe cooling, the heating panel heating, the moisture-absorbing cotton rotating and absorbing moisture and the condensate water centralized drainage are matched, the multiple functions of cooling, heating and dehumidification are considered, the temperature and humidity in the cabinet can be accurately maintained, and the internal electrical components are effectively protected.

Description

Technical Field

[0001] This invention belongs to the field of power distribution cabinet technology, and in particular relates to a power distribution cabinet with constant temperature and moisture-proof function. Background Technology

[0002] Distribution cabinets are the core infrastructure equipment of power distribution systems, mainly used for power distribution, circuit control, and the storage and protection of electrical components. They are widely used in various scenarios such as industrial production, municipal power supply, building electrical systems, and outdoor power distribution. Distribution cabinets integrate a large number of precision electrical components, and their operating status directly affects the stability and safety of the power distribution system.

[0003] Currently, existing power distribution cabinets have several shortcomings in practical use: First, conventional power distribution cabinets lack precise temperature control structures. When the ambient temperature is too high, the electrical components inside the cabinet cannot dissipate heat properly, easily leading to overheating, aging, and short circuits. When the ambient temperature is too low, the sensitivity of some electrical components decreases, affecting power distribution accuracy. Second, power distribution cabinets in outdoor and humid environments have poor moisture resistance. External moisture can easily enter the cabinet through gaps in the door panels and vents. Moisture adheres to the surface of electrical components, easily causing corrosion, decreased insulation performance, leakage, and even short circuits and fires, posing safety hazards. Third, after long-term operation, a large amount of dust and impurities accumulate inside the power distribution cabinet. Dust adheres to the temperature control structure and the surface of electrical components, not only affecting heat dissipation and temperature control accuracy but also causing poor circuit contact and shortening the equipment's lifespan. Summary of the Invention

[0004] The purpose of this invention is to address the problem that some power distribution cabinets are only equipped with simple cooling fans and fixed dehumidifying cotton, resulting in limited heat dissipation and dehumidification effects, inability to achieve constant temperature control throughout the entire area, lack of automatic dust removal function, and simple top rainproof structure, which cannot adapt to complex outdoor environments such as rainy days and strong winds. Rainwater is prone to accumulate and backflow, further aggravating the dampness problem inside the cabinet, making it difficult to meet the long-term operation and use requirements of high-precision and high-stability power distribution cabinets.

[0005] The present invention achieves the above-mentioned objectives through the following technical solution: a power distribution cabinet with constant temperature and moisture-proof function, comprising a cabinet, a first temperature control device, a second temperature control device, a dust removal device, a rainproof device, an exhaust fan, four doors, and an electrical control unit box. The first temperature control device and the second temperature control device are respectively arranged on both sides of the inside of the cabinet. Dust removal devices are provided on both sides of the first temperature control device and the second temperature control device. A rainproof device is fixedly installed on the top of the cabinet. An exhaust fan communicating with the inside of the cabinet is installed at the lower end of the rainproof device. The front of the cabinet is equipped with four doors that can be opened and closed. An electrical control unit box is installed on the outer wall of the cabinet. The electrical control unit box is electrically connected to the first temperature control device, the second temperature control device, the dust removal device, and the exhaust fan. The electrical control unit box is used to collect temperature and humidity signals inside the cabinet and to control the first temperature control device and the second temperature control device to work together to achieve constant temperature regulation inside the cabinet. At the same time, it controls the dust removal device to complete air dust removal and controls the exhaust fan to cooperate with the rainproof device to expel humid and hot air inside the cabinet, thereby achieving constant temperature and moisture-proof inside the power distribution cabinet.

[0006] Furthermore, the first temperature control device includes a bidirectional grid chamber, a drive shaft, a condenser connection port, a circuit connection port, a toothed belt motor, a drain pipe, absorbent cotton, a water receiving pool, a condenser pipe, a heating panel, and a fan. The drive shaft is installed through the side wall of the bidirectional grid chamber, and the condenser connection port and the circuit connection port are sequentially opened on the side wall of the bidirectional grid chamber. The toothed belt motor is installed at the bottom of the outer side of the bidirectional grid chamber. The toothed belt motor is connected to the drive shaft via a toothed belt drive. The drive shaft is linked with the absorbent cotton. When the toothed belt motor is running, it can drive the absorbent cotton to rotate inside the bidirectional grid chamber, increasing the moisture absorption contact area. The lower end of the bidirectional bar grid compartment is connected to a drain pipe; the upper part of the bidirectional bar grid compartment is arranged with moisture-absorbing cotton, a water collection pool is set below the moisture-absorbing cotton, a condenser pipe is arranged above the water collection pool, a heating panel is installed below the water collection pool, and a fan is equipped at the bottom of the heating panel. The toothed belt motor, condenser pipe, heating panel, and fan are electrically connected to the electrical control unit box through a circuit connection port. The condenser pipe is connected to the external refrigeration pipeline through the condensation device connection port. The water collection pool collects condensate and discharges it to the outside through the drain pipe. Together with the moisture-absorbing cotton, heating panel, and fan, the cabinet can achieve cooling, dehumidification, and temperature regulation.

[0007] Furthermore, the dust removal device includes a fixed clamping plate, a lead screw rotating motor, a fixed connecting rod, a U-shaped connecting rod, a gas connecting pipe, and jet nozzles. The lead screw rotating motor is vertically installed in the middle of the fixed clamping plate, and the lower end of the lead screw rotating motor is connected to the fixed connecting rod. The lead screw rotating motor can drive the fixed connecting rod to move up and down in the vertical direction. The two ends of the fixed connecting rod are symmetrically equipped with U-shaped connecting rods. The gas connecting pipe passes through the U-shaped connecting rod, and several jet nozzles are evenly arranged at the end of the gas connecting pipe. The lead screw rotating motor is electrically connected to the electrical control unit box. The electrical control unit box controls the lead screw rotating motor to drive the overall jet structure to move up and down. High-pressure gas is delivered to the jet nozzles through the gas connecting pipe and sprayed out to reciprocate and remove dust from the inside of the power distribution cabinet, the surface of the first temperature control device, and the second temperature control device. The dust raised is discharged out of the cabinet by the exhaust fan above the cabinet.

[0008] Furthermore, the rainproof device includes a roof panel, a first water-collecting telescopic plate, a second water-collecting telescopic plate, and support legs. The roof panel is fixedly installed on the top of the box via the support legs. The first water-collecting telescopic plate and the second water-collecting telescopic plate are slidably mounted on the left and right sides of the roof panel, respectively. Both the first and second water-collecting telescopic plates can be pulled outward relative to the roof panel. After extension, the top rain-blocking and water-collecting area is expanded. Rainwater is guided away from the side wall of the box after passing through the telescopic plates. In conjunction with the exhaust fan, the top is rainproofed and the inside of the box is simultaneously dehumidified.

[0009] Furthermore, the roof panel is provided with a sloping surface, a telescopic plate insertion slot, a telescopic spring slot, a first drainage hole, a sliding groove, and a first telescopic spring hook hole. The sloping surface is located on the upper surface of the roof panel to guide rainwater to flow to both sides of the panel. Telescopic plate insertion slots are respectively opened on both sides of the roof panel, and the first and second water-collecting telescopic plates are slidably installed in the telescopic plate insertion slots on both sides. A sliding groove is provided on the inner side of the roof panel, and a telescopic spring slot is provided in the sliding groove. A first telescopic spring hook hole is opened at the end of the telescopic spring slot, and the two ends of the telescopic spring are respectively connected to the first telescopic spring hook hole and the water-collecting telescopic plate to realize the automatic retraction of the water-collecting telescopic plate. A first drainage hole is opened at the corner of the roof panel, and the rainwater collected on the sloping surface is discharged outward through the first drainage hole to prevent rainwater from accumulating and seeping into the inside of the box.

[0010] Furthermore, both the first and second water-collecting telescopic panels are equipped with a second drainage hole, a second telescopic spring hook hole, and a sliding wheel. The sliding wheel is installed at the inner corner of the water-collecting telescopic panel and is adapted to fit into the sliding groove of the ceiling panel, enabling the water-collecting telescopic panel to be smoothly pulled along the sliding groove. The second telescopic spring hook hole is located on the inner surface of the water-collecting telescopic panel. One end of the telescopic spring is hooked to the first telescopic spring hook hole of the ceiling panel, and the other end is hooked to the second telescopic spring hook hole, so that the water-collecting telescopic panel can automatically retract by relying on the spring tension. The water-collecting telescopic panel has a second drainage hole on its surface, and the rainwater collected by the telescopic panel is guided outward through the second drainage hole to prevent rainwater from accumulating on the telescopic panel and flowing back into the box.

[0011] Furthermore, the second temperature control device is completely identical to the first temperature control device in structure, specifications, and installation method. The first and second temperature control devices are symmetrically arranged on the left and right sides inside the cabinet. The two sets of temperature control devices work synchronously to achieve uniform temperature control and dehumidification throughout the cabinet, avoiding uneven local temperature and humidity inside the cabinet from affecting the operation of the equipment.

[0012] Furthermore, the four doors adopt a double-layer sealed door panel structure, with sealing strips embedded on the inner edge of the four doors. After the four doors are closed, they fit tightly with the opening of the cabinet, achieving internal sealing protection and effectively preventing external humid air and dust from entering the cabinet. Combined with the internal temperature control and dust removal structure, it enhances the constant temperature, moisture prevention, and dust removal effect.

[0013] Furthermore, the exhaust fan is connected to the inner cavity of the cabinet and is located below the center end of the rainproof device. The exhaust fan outlet faces the outside of the cabinet, which can quickly exhaust the hot and humid air and suspended dust generated during dust removal inside the cabinet.

[0014] Furthermore, the electrical control unit box integrates a temperature and humidity acquisition module, a control processing module, and a multi-channel relay drive module. The temperature and humidity acquisition module collects the temperature and humidity data inside the box in real time and transmits it to the control processing module. The control processing module controls the start and stop operation of the first temperature control device, the second temperature control device, the dust removal device, and the exhaust fan according to preset thresholds, so as to realize the automated and intelligent control of the equipment.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. Adopting a dual-sided symmetrical temperature control device structure, it can achieve uniform and constant temperature control throughout the entire internal area of ​​the distribution cabinet. Through the combination of multiple structures such as condenser cooling, heating panel heating, moisture absorption cotton rotation, and centralized discharge of condensate, it takes into account multiple functions of cooling, heating, and dehumidification. It can accurately maintain the stable temperature and humidity inside the cabinet, completely solving the problems of uneven temperature and humidity control and poor dehumidification effect of traditional distribution cabinets, and effectively protecting the internal electrical components.

[0016] 2. An adjustable automatic dust removal device is installed. The jet structure is driven by a screw motor to move up and down to clean the dust inside the cabinet and the surface of the temperature control device. The top exhaust fan quickly removes the dust, preventing dust accumulation from affecting the heat dissipation and dehumidification performance of the equipment, greatly reducing the probability of equipment failure and extending the service life of the equipment.

[0017] 3. Equipped with a retractable rainproof device, the rainproof area can be expanded according to usage needs. Combined with the sloping diversion and multi-layered drainage structure, rainwater can be quickly drained, preventing rainwater accumulation, backflow, and leakage. It blocks rainwater intrusion from the outside and forms a double moisture-proof protection system with the internal moisture-proof structure, greatly improving the moisture-proof effect.

[0018] 4. Fully automated intelligent control is achieved through the electrical control unit box, which collects temperature and humidity data inside the cabinet in real time and adaptively controls the start and stop of each device without manual operation. It has a high degree of intelligence and good operational stability. At the same time, it is equipped with a double-layer sealed four-door structure to further improve the sealing and protection performance of the cabinet, making it suitable for various complex outdoor, humid and dusty working scenarios. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the first temperature control device of the present invention; Figure 3 This is a schematic cross-sectional view of the first temperature control device of the present invention; Figure 4 This is a schematic diagram of the dust removal device of the present invention; Figure 5 This is a schematic diagram of the disassembled structure of the rainproof device of the present invention; Figure 6 This is a schematic diagram of the ceiling panel structure of the present invention; Figure 7 This is a schematic diagram of the water-accumulating telescopic plate structure of the present invention; In the diagram: 1-Box body, 2-First temperature control device, 201-Two-way grid compartment, 202-Drive shaft, 203-Condensation device connection port, 204-Circuit connection port, 205-Geared belt motor, 206-Drain pipe, 207-Moisture-absorbing cotton, 208-Water receiving tank, 209-Condensation pipe, 210-Heating panel, 211-Fan, 3-Second temperature control device, 4-Dust removal device, 41-Fixing clamp, 42-Screw rotating motor, 43-Fixing connecting rod, 44-U-shaped connecting rod, 45 - Gas connection pipe, 46- Air nozzle, 5- Rainproof device, 51- Roof panel, 511- Sloping surface, 512- Telescopic plate insertion slot, 513- Telescopic spring slot, 514- First drainage hole, 515- Sliding groove, 516- First telescopic spring hook hole, 52- First water accumulation telescopic plate, 521- Second drainage hole, 522- Second telescopic spring hook hole, 523- Sliding wheel, 53- Second water accumulation telescopic plate, 54- Support leg, 6- Exhaust fan, 7- Four-door, 8- Electrical control unit box. Detailed Implementation

[0020] 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.

[0021] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Combination Figures 1-7As shown, a power distribution cabinet with constant temperature and moisture protection function includes a cabinet 1, a first temperature control device 2, a second temperature control device 3, a dust removal device 4, a rainproof device 5, an exhaust fan 6, a four-door 7, and an electrical control unit box 8. The first temperature control device 2 and the second temperature control device 3 are symmetrically installed on the left and right sides inside the cabinet 1. The two sets of temperature control devices have the same structure and specifications and work synchronously to ensure uniform temperature and humidity throughout the cabinet. Dust removal devices 4 are installed on both sides of the two sets of temperature control devices to remove dust from the temperature control equipment and the inside of the cabinet. The rainproof device 5 is fixedly installed on the top of the cabinet 1 by support legs 54. An exhaust fan 6 is installed at the bottom center of the rainproof device 5. The exhaust fan 6 is connected to the inner cavity of the cabinet 1 and can quickly exhaust the hot and humid air and suspended dust inside the cabinet. The front of the cabinet 1 is equipped with a double-sealed four-door 7, and the electrical control unit box 8 is fixedly installed on the outer wall. The electrical control unit box 8 is the core control terminal of the equipment and is electrically connected to all electrical structures.

[0023] When the first temperature control device is working, the electrical control unit box 8 activates the corresponding functions based on the temperature and humidity data inside the cabinet: when the temperature inside the cabinet is too high or the humidity is too high, the condenser pipe 209 is connected to the external refrigeration pipe to achieve cooling and temperature reduction. At the same time, the toothed belt motor 205 drives the transmission shaft 202 to rotate through the toothed belt, causing the moisture-absorbing cotton 207 to rotate inside the bidirectional grid chamber 201, which greatly increases the moisture absorption area and efficiently absorbs the moisture inside the cabinet. The condensate produced by the condenser pipe 209 drips into the water collection pool 208 and is directly discharged from the cabinet through the drain pipe 206, preventing water accumulation and moisture return. When the temperature inside the cabinet is too low, the heating panel 210 starts to heat up, and the bottom fan 211 quickly diffuses the heat into the cabinet, achieving constant temperature control inside the cabinet. The bidirectional grid chamber 201 ensures air circulation, realizing the coordinated operation of multiple modes of cooling, dehumidification, and heating.

[0024] During the automated operation of the dust removal device 4, the electrical control unit box 8 controls the start and stop of the screw rotation motor 42, which drives the fixed connecting rod 43 to move the U-shaped connecting rod 44 and the gas connecting pipe 45 back and forth in the vertical direction. High-pressure gas is delivered through the gas connecting pipe 45 to the evenly distributed jet nozzles 46 at the end and sprayed out at high speed, which blows the internal cavity of the cabinet, the surface gaps of the first temperature control device 2 and the second temperature control device 3 in an all-round and thorough manner, raising the accumulated dust and impurities. The raised suspended dust is pulled out of the cabinet by the negative pressure of the exhaust fan 6 and discharged with the airflow, completely solving the problems of poor heat dissipation and circuit failure caused by dust accumulation.

[0025] The rainproof device 5 is adaptable to different weather scenarios: In rainy weather, due to the gravity of accumulated water, the first water-collecting telescopic plate 52 and the second water-collecting telescopic plate 53 are stretched outward. The telescopic plates slide smoothly along the sliding groove 515 of the ceiling plate 51 through the inner sliding wheel 523, expanding the top rain-blocking area and preventing rainwater from falling and washing the side walls of the cabinet. The slope surface 511 of the ceiling plate 51 can quickly collect rainwater, which is then quickly drained through the first drainage hole 514 of the ceiling plate 51 and the second drainage hole 521 of the telescopic plate, preventing rainwater accumulation. After the rain or snow ends, the telescopic plates are released, and the telescopic springs drive the telescopic plates to automatically retract and reset through the pulling force of the hook holes at both ends. The structure is convenient and stable, effectively preventing rainwater from backflowing and leaking into the cabinet, ensuring safety for outdoor use.

[0026] The four-door 7 adopts a double-layer sealing structure, with the inner side fully covered by sealing strips. After the door panel is closed, it fits tightly with the opening of the cabinet 1 to form a sealed cabinet space, effectively blocking the intrusion of external humid air, dust, and insects, reducing the probability of moisture and dust accumulation inside the cabinet from the source. Together with the internal temperature control, dehumidification, and dust removal structure, it forms a closed-loop protection system.

[0027] The electrical control unit box 8 is the core of intelligent control. Its internal temperature and humidity acquisition module collects the temperature and humidity data inside the cabinet in real time 24 hours a day and transmits the data to the control processing module. The control processing module has built-in preset temperature and humidity thresholds. When the detected data exceeds the threshold range, it automatically controls the first temperature control device 2, the second temperature control device 3, the dust removal device 4, and the exhaust fan 6 to start and stop, automatically completing the constant temperature regulation, dehumidification, dust removal, and dehumidification and ventilation operations. The whole process is automated and requires no manual operation. It has a high degree of intelligence and automation and is suitable for long-term unattended use scenarios such as industrial outdoor and power distribution rooms.

[0028] During operation: I. Intelligent overall control principle: The electrical control unit box is the core control hub of this equipment. The internal temperature and humidity acquisition module continuously collects real-time temperature and humidity data inside the cabinet 24 hours a day, and converts the collected analog signals into digital signals and transmits them to the control processing module. The control processing module has preset temperature and humidity threshold ranges for safe operation of the power distribution cabinet. By comparing the collected data with the preset thresholds in real time, it automatically judges the operating environment status inside the cabinet, and precisely controls the start, stop and operation switching of the first temperature control device, the second temperature control device, the dust removal device and the exhaust fan through the multi-channel relay drive module. No manual intervention is required throughout the process, realizing automated and intelligent closed-loop control.

[0029] II. Constant Temperature Control Working Principle: Utilizing a symmetrical dual-temperature control device operating synchronously, the system achieves complete temperature regulation throughout the cabinet without any blind spots. When the real-time temperature inside the cabinet exceeds the preset high-temperature threshold, the electrical control unit activates the condenser coils of both temperature control devices. External cooling pipes continuously supply cooling to the condenser coils, which form a low-temperature heat exchange zone within the bidirectional grid compartment. Hot air inside the cabinet passes through the bidirectional grid compartment and fully exchanges heat with the condenser coils, rapidly reducing the overall temperature inside the cabinet. When the real-time temperature inside the cabinet falls below the preset low-temperature threshold, the condenser coils stop operating, and the heating panel starts heating. Simultaneously, the bottom fan operates synchronously, quickly and evenly dispersing the heat generated by the heating panel to all areas of the cabinet. This compensates for the low-temperature deficiency inside the cabinet and prevents electrical components from experiencing decreased sensitivity or malfunctions due to low temperatures. The symmetrical and synchronous operation of the dual temperature control devices completely solves the problems of large localized temperature differences and uneven temperature control in traditional distribution cabinets, stably maintaining a constant temperature inside the cabinet.

[0030] III. Working Principle of Moisture Prevention and Dehumidification: The system employs a multi-layered dehumidification structure combining physical adsorption, condensation drainage, and hot air drying for coordinated moisture prevention. During daily operation, the toothed belt motor operates intermittently, driving the transmission shaft to rotate and causing the absorbent cotton to rotate continuously inside the bidirectional grid chamber. This significantly increases the contact area between the absorbent cotton and the humid air inside the cabinet, efficiently adsorbing moisture from the air and reducing humidity at the source. In high-temperature and high-humidity environments, the condenser operates, causing the humid air inside the cabinet to liquefy upon cooling. The water vapor condenses into liquid droplets that fall into the water collection pool below and are directly discharged from the cabinet through the drain pipe connected to the water collection pool, preventing moisture residue and water accumulation. If the humidity inside the cabinet is high and the temperature is low, the equipment activates the heating panel and fan to work together, using hot air to dry the air, electrical components, and structural surfaces inside the cabinet, completely eliminating condensation and moisture accumulation. This combination of multiple dehumidification methods achieves long-term moisture prevention inside the cabinet. At the same time, the double-layered sealing strips on the four doors tightly seal the cabinet openings, effectively blocking the intrusion of external humid air and preventing external moisture from affecting the internal environment of the cabinet.

[0031] IV. Automatic Dust Removal Working Principle: Dust and suspended impurities accumulated inside the distribution cabinet during long-term operation can be thoroughly removed by the automated dust removal structure. The electrical control unit starts the lead screw motor according to the preset working cycle or dust removal trigger conditions. The lead screw motor drives the fixed connecting rod, which in turn moves the U-shaped connecting rod, gas connecting pipe, and jet nozzles vertically in a reciprocating motion. External high-pressure gas is continuously delivered to each jet nozzle through the gas connecting pipe and ejected as a high-speed airflow. This reciprocating airflow thoroughly cleans the inner wall of the cabinet, the surface of electrical components, and the gaps between the first and second temperature control devices, lifting stubborn dust and accumulated impurities into suspended dust. Simultaneously, the top exhaust fan generates negative pressure suction, quickly extracting and expelling the suspended dust and impurities from the cabinet with the airflow, achieving dust removal without dead angles. This prevents dust accumulation from affecting equipment heat dissipation and causing poor circuit contact, ensuring a clean operating environment inside the cabinet.

[0032] V. Outdoor Rainproof and Synchronous Dehumidification Principle: The top rainproof device provides all-weather protection for the outdoor operation of the distribution cabinet. Under normal weather conditions, the telescopic plates are in a retracted state, reducing the wind-exposed area of ​​the equipment. In rainy, snowy, or windy weather, the first and second water-collecting telescopic plates are affected by the gravity of rainwater. The telescopic plates extend smoothly along the sliding groove of the top plate through the bottom sliding wheels, expanding the top rainproof and shielding area and effectively preventing rain and snow from directly washing over the cabinet side walls and doors. The upper surface of the top plate is set with a slope, which can quickly collect rainwater and drain it in layers through the first drainage hole of the top plate and the second drainage hole of the telescopic plates, preventing rainwater accumulation, backflow, and leakage. After the rainy or snowy weather ends, the two sets of telescopic plates automatically retract and reset under the tension of the telescopic springs, ensuring a stable and reliable structure. At the same time, the exhaust fan below the center of the rainproof device can start and stop normally while providing rain protection, quickly expelling the humid and hot air inside the cabinet. This achieves rainproofing and dehumidification without interference, adapting to complex outdoor weather environments.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A power distribution cabinet with constant temperature and moisture-proof function, comprising a cabinet (1), a first temperature control device (2), a second temperature control device (3), a dust removal device (4), a rainproof device (5), an exhaust fan (6), four doors (7), and an electrical control unit box (8), characterized in that: The first temperature control device (2) and the second temperature control device (3) are respectively arranged on the two sides of the inside of the box (1). The first temperature control device (2) and the second temperature control device (3) are equipped with dust removal devices (4) on both sides. The top of the box (1) is fixedly equipped with a rainproof device (5). The lower end of the rainproof device (5) is equipped with an exhaust fan (6) that communicates with the inside of the box. The front of the box (1) is equipped with an openable four-door (7). The outer wall of the box (1) is equipped with an electrical control unit box (8). The electrical control unit box (8) is electrically connected to the first temperature control device (2), the second temperature control device (3), the dust removal device (4) and the exhaust fan (6). The electrical control unit box (8) is used to collect the temperature and humidity signals inside the box and to control the first temperature control device (2) and the second temperature control device (3) to work together to achieve constant temperature regulation inside the box. At the same time, it controls the dust removal device (4) to complete air dust removal and controls the exhaust fan (6) to cooperate with the rainproof device (5) to exhaust the humid and hot air inside the box, thereby achieving constant temperature and moisture prevention inside the power distribution cabinet.

2. A power distribution cabinet with constant temperature and moisture-proof function according to claim 1, characterized in that: The first temperature control device (2) includes a bidirectional grid chamber (201), a drive shaft (202), a condenser connection port (203), a circuit connection port (204), a geared belt motor (205), a drain pipe (206), a moisture-absorbing cotton (207), a water receiving pool (208), a condenser pipe (209), a heating panel (210), and a fan (211). The drive shaft (202) is installed through the side wall of the bidirectional grid chamber (201). The condenser connection port (203) and the circuit connection port (204) are sequentially opened on the side wall of the bidirectional grid chamber (201). The geared belt motor (205) is installed at the bottom of the outer side of the bidirectional grid chamber (201). The geared belt motor (205) is connected to the drive shaft (202) through a geared belt drive. The drive shaft (202) is linked with the moisture-absorbing cotton (207). When the geared belt motor (205) is running, it can drive the moisture-absorbing cotton (207) to rotate inside the bidirectional grid chamber (201), increasing the moisture absorption. Contact area; the lower end of the bidirectional grid compartment (201) is connected to the drain pipe (206); the upper part of the bidirectional grid compartment (201) is arranged with moisture-absorbing cotton (207), the water receiving pool (208) is set below the moisture-absorbing cotton (207), the condenser pipe (209) is arranged above the water receiving pool (208), the heating panel (210) is installed below the water receiving pool (208), and the bottom of the heating panel (210) is equipped with a fan (211); the toothed belt motor (205), condenser The tube (209), heating panel (210), and fan (211) are electrically connected to the electrical control unit box (8) through the circuit connection port (204). The condenser tube (209) is connected to the external refrigeration pipeline through the condenser connection port (203). The water collection tank (208) collects condensate and discharges it to the outside through the drain pipe (206). Together with the moisture-absorbing cotton (207), heating panel (210), and fan (211), the cabinet can be cooled, dehumidified, and heated.

3. A power distribution cabinet with constant temperature and moisture-proof function according to claim 2, characterized in that: The dust removal device (4) includes a fixed clamping plate (41), a lead screw rotating motor (42), a fixed connecting rod (43), a U-shaped connecting rod (44), a gas connecting pipe (45), and a jet nozzle (46); the lead screw rotating motor (42) is vertically installed in the middle of the fixed clamping plate (41), and the lower end of the lead screw rotating motor (42) is connected to the fixed connecting rod (43) for transmission. The lead screw rotating motor (42) can drive the fixed connecting rod (43) to rise and fall in the vertical direction; the fixed connecting rod (43) is symmetrically equipped with U-shaped connecting rods (44) at both ends. A gas connecting pipe (45) is installed inside the connecting rod (44), and several air nozzles (46) are evenly arranged at the end of the gas connecting pipe (45). The lead screw rotating motor (42) is electrically connected to the electrical control unit box (8). The electrical control unit box (8) controls the lead screw rotating motor (42) to drive the overall air jet structure to move up and down. High-pressure gas is transported to the air nozzles (46) through the gas connecting pipe (45) and sprayed out to repeatedly blow dust on the inside of the power distribution cabinet, the surface of the first temperature control device (2) and the second temperature control device (3). The dust raised is discharged out of the cabinet with the help of the exhaust fan (6) above the cabinet.

4. A power distribution cabinet with constant temperature and moisture-proof function according to claim 3, characterized in that: The rainproof device (5) includes a roof panel (51), a first water-collecting telescopic plate (52), a second water-collecting telescopic plate (53), and a support leg (54). The roof panel (51) is fixedly installed on the top of the box (1) through the support leg (54). The first water-collecting telescopic plate (52) and the second water-collecting telescopic plate (53) are slidably mounted on the left and right sides of the roof panel (51), respectively. The first water-collecting telescopic plate (52) and the second water-collecting telescopic plate (53) can be pulled outward relative to the roof panel (51). After extension, the top rain-proof and water-collecting area is expanded. After the rainwater is guided by the telescopic plate, it is away from the side wall of the box. With the help of the exhaust fan (6), the top is rainproof and the box is simultaneously dehumidified.

5. A power distribution cabinet with constant temperature and moisture-proof function according to claim 4, characterized in that: The roof panel (51) is provided with a sloping surface (511), a telescopic plate insertion slot (512), a telescopic spring slot (513), a first drainage hole (514), a sliding groove (515), and a first telescopic spring hook hole (516); the sloping surface (511) is provided on the upper surface of the roof panel (51) to guide rainwater to flow to both sides of the panel; telescopic plate insertion slots (512) are respectively opened on both sides of the roof panel (51), and the first water-accumulating telescopic plate (52) and the second water-accumulating telescopic plate (53) are slidably installed in the telescopic plate insertion slots (512) on both sides. Inside; the inner side of the ceiling panel (51) is provided with a sliding groove (515), and a telescopic spring groove (513) is provided in the sliding groove (515). A first telescopic spring hook hole (516) is opened at the end of the telescopic spring groove (513). The two ends of the telescopic spring are respectively connected to the first telescopic spring hook hole (516) and the water accumulation telescopic plate, so as to realize the automatic retraction of the water accumulation telescopic plate; a first water leakage hole (514) is opened at the corner of the ceiling panel (51). The rainwater collected on the slope surface (511) is discharged outward through the first water leakage hole (514) to avoid rainwater accumulation and seepage into the box body (1).

6. A power distribution cabinet with constant temperature and moisture-proof function according to claim 5, characterized in that: Both the first water-collecting telescopic plate (52) and the second water-collecting telescopic plate (53) are provided with a second drainage hole (521), a second telescopic spring hook hole (522), and a sliding wheel (523). The sliding wheel (523) is installed at the inner corner of the water-collecting telescopic plate. The sliding wheel (523) is adapted to be inserted into the sliding groove (515) of the ceiling plate (51) to realize the smooth pulling of the water-collecting telescopic plate along the sliding groove (515). The second telescopic spring hook hole (522) is provided on the inner side of the water-collecting telescopic plate. One end of the telescopic spring is hooked to the first telescopic spring hook hole (516) of the ceiling plate, and the other end is hooked to the second telescopic spring hook hole (522). The water-collecting telescopic plate is automatically retracted by the spring tension. The water-collecting telescopic plate has a second drainage hole (521) on its surface. The rainwater collected by the telescopic plate is guided outward through the second drainage hole (521) to avoid the rainwater from accumulating on the telescopic plate and flowing back into the box (1).

7. A power distribution cabinet with constant temperature and moisture-proof function according to claim 6, characterized in that: The second temperature control device (3) is completely consistent with the first temperature control device (2) in terms of structure, specifications and installation method. The first temperature control device (2) and the second temperature control device (3) are symmetrically arranged on the left and right sides inside the cabinet (1). The two sets of temperature control devices work in sync to achieve uniform temperature control and dehumidification throughout the cabinet (1) and avoid uneven local temperature and humidity affecting equipment operation.

8. A power distribution cabinet with constant temperature and moisture-proof function according to claim 7, characterized in that: The four doors (7) adopt a double-layer sealed door panel structure. The inner edge of the four doors (7) is fitted with sealing strips. After the four doors (7) are closed, they fit tightly with the opening of the cabinet (1), achieving internal sealing protection of the cabinet (1) and effectively blocking external humid air and dust from entering the cabinet. Combined with the internal temperature control and dust removal structure, it improves the constant temperature, moisture prevention and dust removal effect.

9. A power distribution cabinet with constant temperature and moisture-proof function according to claim 8, characterized in that: The exhaust fan (6) is connected to the inner cavity of the cabinet (1) and is located below the center end of the rainproof device (5). The exhaust fan (6) faces the outside of the cabinet and can quickly exhaust the hot and humid air inside the cabinet and the suspended dust generated by dust removal.

10. A power distribution cabinet with constant temperature and moisture-proof function according to claim 9, characterized in that: The electrical control unit box (8) integrates a temperature and humidity acquisition module, a control processing module, and a multi-channel relay drive module. The temperature and humidity acquisition module collects the temperature and humidity data inside the box (1) in real time and transmits it to the control processing module. The control processing module controls the start and stop of the first temperature control device (2), the second temperature control device (3), the dust removal device (4), and the exhaust fan (6) according to the preset threshold, so as to realize the automatic intelligent control of the equipment.

Images