A power distribution cabinet for a water pump house

Abstract

This utility model relates to the field of power distribution cabinet technology, specifically to a power distribution cabinet for use in a water pump room. It includes a cabinet body with a door rotatably connected to the front end. Air inlets are provided on both side walls of the cabinet, and air intake components are installed on the inner side walls of the air inlets. An exhaust port is also provided on the top plate of the cabinet, and an exhaust component is installed inside the exhaust port. A fan unit is also installed inside the top plate of the cabinet. Through the arrangement of the air intake components, fan unit, and exhaust component, a unidirectional airflow is generated inside the cabinet when the fan unit is working. This draws in low-temperature external airflow through the air inlets and exhausts high-temperature airflow from inside the cabinet to the outside, thus exchanging heat inside the cabinet and cooling the electrical equipment inside, effectively ensuring the operational condition of the electrical equipment. This solves the problem of traditional power distribution cabinets where the ventilation holes are always open, allowing dust and insects to easily enter the cabinet through these open vents.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, specifically to a power distribution cabinet used in a water pump room. Background Technology

[0002] With the continuous upgrading of electrical control systems in pumping stations, the importance of distribution cabinets, as the core equipment for power distribution and control in pumping stations, is becoming increasingly prominent. However, existing distribution cabinets still face technical bottlenecks in actual operation, especially in terms of adaptability to complex environments. For example, the currently commonly used heat dissipation solution involves opening fixed heat dissipation holes on the surface of the cabinet. While this achieves basic heat dissipation, these normally open holes have revealed serious design flaws during long-term operation. When equipment is deployed in pumping station environments with high humidity and high dust concentration, the open heat dissipation structure becomes the main channel for external pollutants to enter.

[0003] The challenges faced by electrical distribution cabinets are exacerbated by seasonal environmental changes: mosquitoes, which thrive in the high humidity of summer, can enter the cabinet through ventilation holes, while suspended particulate matter continuously adheres to the surfaces of electrical components. This dual pollution triggers a chain reaction—dust accumulation not only forms an insulation layer that hinders heat dissipation efficiency but also accelerates equipment heating; biological intrusion can cause abnormal conductivity between live parts, leading to a surge in the risk of short-circuit faults. These problems not only reduce the operational stability of the distribution cabinet but also shorten the equipment's lifespan, posing a continuous threat to the overall power supply safety of the pumping station.

[0004] Based on this, the present invention proposes a power distribution cabinet for a pump room to solve the problems existing in the prior art. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a power distribution cabinet for pump rooms, which can effectively solve the problem that the heat dissipation holes of traditional power distribution cabinets are always open, and dust and insects can easily enter the inside of the power distribution cabinet through the open heat dissipation holes.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A power distribution cabinet for a pump room includes a cabinet body with a cabinet door rotatably connected to the front end of the cabinet body. Air inlets are provided on both side walls of the cabinet body, and air intake components are provided on the inner side walls of the air inlets. An exhaust port is also provided on the top plate of the cabinet body, and an exhaust component is provided inside the exhaust port. A fan unit is also provided on the inner side of the top plate of the cabinet body.

[0008] In a preferred embodiment of the present invention, the air inlet is located at the lower end of the side wall of the cabinet. The air inlet assembly includes a baffle disposed inside the air inlet and several sealing plates disposed on the baffle. The sealing plates are rotatably disposed inside the baffle via hinge plates and movably cover the guide port disposed on the baffle.

[0009] In a preferred embodiment of this utility model, a closing slope is provided on the inner side of the lower end of the sealing plate, and the closing slope fits into the relief groove opened on the inner wall of the guide port.

[0010] In a preferred embodiment of the present invention, the exhaust assembly includes a windshield cover, which is movably disposed on the upper outer side of the exhaust port, and guide rods are symmetrically disposed on the lower inner wall of the windshield cover, the guide rods being movably connected to a movable sleeve disposed on the side wall of the exhaust port.

[0011] In a preferred embodiment of this utility model, the lower end of the guide rod is provided with a threaded section, which is threadedly connected to the threaded sleeve.

[0012] In a preferred embodiment of this utility model, a wind baffle is provided on the outer side of the top plate of the cabinet, and the wind baffle is attached to the inner edge of the eaves of the wind baffle cover.

[0013] In a preferred embodiment of this utility model, a flow guide is provided on the outside of the cabinet, and the flow guide is located on the outside of the air inlet.

[0014] In a preferred embodiment of this utility model, a filter plate is provided on the inner side of the air guide, and the filter plate is installed on the outer side of the air inlet.

[0015] In a preferred embodiment of this utility model, a groove is provided between the flow guide and the outer wall of the cabinet.

[0016] In a preferred embodiment of this utility model, a sealing strip is provided on the inner side of the cabinet door, and the sealing strip engages with a sealing groove formed on the front surface of the cabinet.

[0017] Compared with the prior art, this utility model provides a power distribution cabinet for use in pump rooms, which has the following beneficial effects:

[0018] By incorporating an air intake assembly, a fan unit, and an exhaust assembly, a unidirectional airflow is generated inside the cabinet when the fan unit is operating. This airflow draws in low-temperature external air through the air intake and exhausts high-temperature air from inside the cabinet to the outside, thus exchanging heat inside the cabinet and cooling the electrical equipment inside, effectively ensuring the proper functioning of the electrical equipment.

[0019] By setting up the air intake and exhaust components, the air intake and exhaust ports can be sealed in non-ventilated heat exchange states, effectively preventing external environmental interference with the working status of the electrical equipment inside the cabinet and ensuring the normal use of the electrical equipment; at the same time, it prevents external insects and suspended particles from entering the cabinet, ensuring the service life of the electrical equipment inside the cabinet and avoiding a continuous threat to the overall power supply safety of the pump station from external insects and suspended particles.

[0020] By strategically positioning the exhaust vents and symmetrically arranged air inlets, the flow path of the external low-temperature airflow within the cabinet is effectively extended, ensuring its cooling effect on the internal electrical equipment. This solves the problem of traditional distribution cabinets where the ventilation holes are always open, allowing dust and insects to easily enter the cabinet through these perpetually open vents. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the power distribution cabinet door when it is closed.

[0023] Figure 2 This is a schematic diagram of the structure of the power distribution cabinet after the cabinet door of this utility model is opened;

[0024] Figure 3 This is an exploded view of the air intake assembly of this utility model;

[0025] Figure 4 This utility model Figure 3 A magnified view of a section at point A in the middle;

[0026] Figure 5 This is a schematic diagram of the exhaust assembly of this utility model;

[0027] Figure 6 This utility model Figure 5 A magnified view of a section at point B in the middle;

[0028] Figure 7 This utility model Figure 2 A magnified view of a section at point C.

[0029] Attached reference numerals: 1. Cabinet body; 2. Air guide; 3. Cabinet door; 4. Windproof cover; 5. Guide rod; 6. Sealing groove; 7. Sealing strip; 8. Baffle; 10. Air inlet; 11. Sealing plate; 12. Air guide port; 13. Closed slope; 14. Relief groove; 15. Movable sleeve; 16. Threaded sleeve; 17. Fan unit; 18. Embedded groove; 19. Exhaust port; 20. Filter plate; 21. Wind baffle. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The present invention will be further described below with reference to the embodiments.

[0032] Reference Figures 1 to 7 A power distribution cabinet for a pump room includes a cabinet body 1, which serves as the outer casing for installing and protecting electrical equipment. A cabinet door 3 is rotatably connected to the front end of the cabinet body 1. Air inlets 10 are provided at the lower ends of both side walls of the cabinet body 1. An air intake assembly is installed on the inner side wall of the air inlet 10 to control the air intake inside the cabinet body 1 during operation. An exhaust port 19 is also provided on the top plate of the cabinet body 1. An exhaust assembly is installed inside the exhaust port 19 to exhaust the high-temperature air inside the cabinet body 1 to the outside of the cabinet body 1. A fan unit 17 is also installed on the inner side of the top plate of the cabinet body 1. The fan unit 17 works in conjunction with the air intake assembly and the exhaust assembly to ventilate the inside of the cabinet body 1.

[0033] In the above description, the arrangement of the air intake assembly, fan unit 17, and exhaust assembly enables a unidirectional airflow to be generated inside the cabinet 1 when the fan unit 17 is operating. This airflow draws low-temperature external air into the cabinet 1 through the air intake 10 and exhausts high-temperature air from inside the cabinet 1 to the outside, thus exchanging heat inside the cabinet 1 and cooling the electrical equipment inside. Simultaneously, the air intake and exhaust assemblies can be sealed off during non-ventilated heat exchange conditions, effectively preventing external environmental interference with the operation of the electrical equipment inside the cabinet 1 and ensuring its normal operation. The placement of the exhaust 19 and the symmetrically arranged air intakes 10 effectively extends the flow path of the low-temperature external airflow within the cabinet 1, ensuring its cooling effect on the electrical equipment inside the cabinet 1.

[0034] It should be noted that the aforementioned electrical equipment includes, but is not limited to, switches, relays, controllers, and other electrical equipment that generate heat during operation and are installed in cabinet 1. All of the aforementioned electrical equipment are technologies known to those skilled in the art and will not be described in detail here.

[0035] The wind turbine unit 17 is a device for generating wind power, including a mounting frame and a fan. The structure of the wind turbine unit is well known to those skilled in the art and will not be described in detail here.

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the air intake assembly includes a baffle 8 detachably installed inside the air intake 10, and several sealing plates 11 installed on the baffle 8. The sealing plates 11 are rotatably installed inside the baffle 8 via hinges and cooperate with the guide ports 12 opened on the baffle 8 to unidirectionally block and close the guide ports 12. When the fan unit 17 operates, creating a negative pressure inside the cabinet 1, the sealing plates 11 rotate inward under the action of the internal negative pressure and the external air pressure, opening the guide ports 12, allowing the low-temperature air from the outside to enter the cabinet 1 through the guide ports 12 to cool the inside of the cabinet 1. When the fan unit 17 is turned off, the sealing plates 11 rotate downward again due to gravity, closing the guide ports 12 to prevent the external environment from interfering with the operation of the electrical equipment inside the cabinet 1 when it is not in a ventilation and cooling state.

[0037] like Figure 4 As shown, the lower free end of the sealing plate 11 is an eccentric large end, and a closing inclined surface 13 is provided on the inner side of the sealing plate 11 to cooperate with the relief groove 14 opened on the inner side wall of the guide port 12. In use, due to the large end of the lower free end of the sealing plate 11, the center of gravity of the sealing plate 11 shifts inward, resulting in eccentric force. This allows the sealing plate 11 to always be tightly attached to the outer side of the guide port 12 in its natural state, ensuring the sealing effect of the sealing plate 11 on the guide port 12. At the same time, when the sealing plate 11 rotates downward under the action of gravity and closes the guide port 12, the closing inclined surface 13 can fit against the inclined side wall of the relief groove 14, ensuring the sealing effect of the guide port 12. This ensures the relative independence of the internal environment and external environment of the cabinet 1, and ensures the working status of the electrical equipment inside the cabinet 1.

[0038] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the exhaust assembly includes a wind deflector 4, which is a movable cover plate movably installed on the upper outer side of the exhaust port 19. Guide rods 5 are symmetrically arranged on the lower inner wall of the wind deflector 4, and the guide rods 5 are movably connected to a movable sleeve 15 provided on the side wall of the exhaust port 19. When the fan unit 17 is working, the air pressure inside the cabinet 1 increases. Under the action of the air pressure inside the cabinet 1, the wind deflector 4 moves upward, opening the exhaust port 19. The gas inside the cabinet 1 can be discharged through the exhaust port 19 to the water pump room environment outside the cabinet 1, achieving ventilation and heat dissipation inside the cabinet 1 and ensuring the working status of the electrical equipment inside the cabinet 1. Simultaneously, when the fan unit 17 is turned off, the wind deflector 4 can slowly fall back to the upper end of the exhaust port 19 under the action of gravity, sealing the exhaust port 19.

[0039] In the above description, the guide rod 5 and the movable sleeve 15 are designed to guide the movement of the wind deflector 4 during use, so that the wind deflector 4 can move up and down stably when ventilating the inside of the cabinet 1.

[0040] like Figure 5 and Figure 6 As shown, the lower end of the guide rod 5 is provided with a threaded section, and a threaded sleeve 16 is threadedly connected to the threaded section. The threaded section and the threaded sleeve 16 can be used to position the wind deflector 4 on the outside of the top plate of the cabinet 1, avoiding safety accidents caused by excessive wind pressure; and by adjusting the position of the threaded sleeve 16 on the guide rod 5, the range of motion of the wind deflector 4 can be limited, and the movement distance of the wind deflector 4 can be controlled.

[0041] like Figure 5 and Figure 6 As shown, a wind baffle 21 is also provided on the outer side of the top plate of the cabinet 1. The wind baffle 21 is tightly fitted with the inner edge of the eaves of the wind baffle cover 4. When the wind baffle cover 4 falls back to the upper side of the exhaust port 19, the inner edge of the eaves of the wind baffle cover 4 can fit with the outer edge of the wind baffle 21 to seal the exhaust port 19, so as to avoid interference from the external environment to the working status of the electrical equipment inside the cabinet 1.

[0042] like Figure 1 , Figure 2 and Figure 7 As shown, a guide vane 2 is installed on the outside of the cabinet 1. The guide vane 2 is installed on the outside of the air inlet 10, which can horizontally block the air inlet 10, protecting it and preventing splashing water droplets and other debris from directly entering the air inlet 10, thus effectively ensuring the performance of the air inlet 10. At the same time, a filter plate 20 is also installed on the inside of the guide vane 2. The filter plate 20 is positioned at the outside of the air inlet 10, so that after the guide vane 2 is installed, the filter plate 20 can cover the outside of the air inlet 10 to prevent external debris or flies from entering the cabinet 1.

[0043] like Figure 7 As shown, after the air guide 2 is installed, a groove 18 is formed between the air guide 2 and the outer wall of the cabinet 1. The groove 18 can guide the external air, allowing it to smoothly enter the air inlet 10. At the same time, according to the usage requirements, porous moisture-absorbing materials such as activated carbon, gel and gel derivatives can be placed in the groove 18 to achieve dehumidification and filtration of the air entering the air inlet 10. The specific placement and fixing can be based on the site requirements.

[0044] It should be noted that the aforementioned porous hygroscopic materials such as activated carbon, gel and gel derivatives are technologies known to those skilled in the art, and will not be elaborated upon here.

[0045] like Figure 1 , Figure 2 and Figure 3 As shown, a sealing strip 7 is fixedly installed on the inner side of the cabinet door 3. The sealing strip 7 works in conjunction with the sealing groove 6 formed on the front face of the cabinet body 1. After the cabinet door 3 is closed, the sealing strip 7 can be engaged in the sealing groove 6 to seal the connection interface between the cabinet door 3 and the cabinet body 1, so as to avoid interference from the external environment to the working status of the electrical equipment inside the cabinet body 1.

[0046] The usage process of the power distribution cabinet for the pump room described in this utility model includes:

[0047] Under normal conditions, the air inlet 10 and exhaust outlet 19 are sealed by the air intake and exhaust components, allowing the electrical equipment to operate normally inside the cabinet 1. As the electrical equipment continuously operates, it generates a large amount of heat, causing the internal temperature of the cabinet 1 to rise. When the internal temperature of the cabinet 1 becomes high, the control fan unit 17 automatically turns on. The air intake end of the fan unit 17 is located on the side of the air inlet 10, and the exhaust end is located on the side of the exhaust outlet 19. Therefore, during the operation of the fan unit 17: a negative pressure is generated inside the cabinet 1. Under the action of the internal negative pressure and the external air pressure, the sealing plate 11 rotates inward, opening the guide port 12, allowing low-temperature air from the outside to enter the cabinet 1 through the guide port 12. Simultaneously, under the action of the internal air pressure of the cabinet 1, the windproof cover 4 moves upward, opening the exhaust outlet 19, allowing the gas inside the cabinet 1 to be discharged to the pump room environment outside the cabinet 1 through the exhaust outlet 19, thus achieving ventilation and heat dissipation inside the cabinet 1. When the fan unit 17 is turned off, the sealing plate 11 rotates downward again due to gravity, sealing the guide port 12; at the same time, the windproof cover 4 slowly falls back to the upper end of the exhaust port 19 under the action of gravity, sealing the exhaust port 19, so that the working state of the electrical equipment is not disturbed by the outside world.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A power distribution cabinet for a pump room, comprising a cabinet body (1), wherein a cabinet door (3) is rotatably connected to the front end of the cabinet body (1), characterized in that, Air inlets (10) are provided on both sides of the cabinet (1), and air inlet components are provided on the inner side of the air inlets (10); an exhaust port (19) is also provided on the top plate of the cabinet (1), and an exhaust component is provided inside the exhaust port (19); a fan unit (17) is also provided on the inner side of the top plate of the cabinet (1). The air inlet (10) is located at the lower end of the side wall of the cabinet (1). The air inlet assembly includes a baffle (8) located inside the air inlet (10) and several sealing plates (11) located on the baffle (8). The sealing plates (11) are rotatably located inside the baffle (8) via hinge plates and are movably covered by the guide port (12) located on the baffle (8). A closed slope (13) is provided on the inner side of the lower end of the sealing plate (11), and the closed slope (13) fits into the relief groove (14) opened on the inner wall of the guide port (12); The exhaust assembly includes a windshield (4), which is movably disposed on the upper outer side of the exhaust port (19), and guide rods (5) are symmetrically disposed on the lower inner wall of the windshield (4). The guide rods (5) are movably connected to the movable sleeve (15) disposed on the side wall of the exhaust port (19).

2. The power distribution cabinet for a pump room as described in claim 1, characterized in that, The lower end of the guide rod (5) is provided with a threaded section, which is threadedly connected to the threaded sleeve (16).

3. The power distribution cabinet for a pump room as described in claim 1, characterized in that, A wind deflector (21) is provided on the outer side of the top plate of the cabinet (1), and the wind deflector (21) is attached to the inner edge of the eaves of the wind deflector cover (4).

4. A power distribution cabinet for a pump room as described in claim 1, characterized in that, A flow guide (2) is provided on the outside of the cabinet (1), and the flow guide (2) is located on the outside of the air inlet (10).

5. A power distribution cabinet for a pump room as described in claim 4, characterized in that, A filter plate (20) is provided on the inner side of the guide (2), and the filter plate (20) is installed on the outer side of the air inlet (10).

6. A power distribution cabinet for a pump room as described in claim 4, characterized in that, A groove (18) is provided between the flow guide (2) and the outer wall of the cabinet (1).

7. A power distribution cabinet for a pump room as described in claim 1, characterized in that, A sealing strip (7) is provided on the inside of the cabinet door (3), and the sealing strip (7) engages with the sealing groove (6) opened on the front face of the cabinet body (1).

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