Environment-friendly electric appliance cabinet

Abstract

The utility model discloses an environmental protection electric appliance cabinet, aims at solving the low heat dissipation efficiency, easy dust accumulation and high energy consumption of existing electric appliance cabinet. The electric appliance cabinet includes closed cabinet body, support, cold storage well, cooling assembly, air inlet plate, air outlet plate and air guide assembly. The cold storage well is excavated in the ground below the cabinet body, the depth is 50-100 meters, fills water or silt, and utilizes the geothermal temperature difference to exchange heat. The cooling assembly contains heat conduction pipe and fan, and cold air is guided into the cabinet. The air guide assembly is adjusted by the lifting mechanism: when the load is low, the air guide groove is closed, and the air is naturally circulated; when the load is high, the temperature triggers the lifting assembly, the air guide groove is communicated with the heat conduction pipe, and the forced air cooling is enhanced. The air inlet plate and the air outlet plate adopt hinged design, and the airflow direction is controlled by limiting, and dust accumulation is reduced. The utility model realizes the self -adaptation heat dissipation of high efficiency, energy -conserving, prolongs the equipment life, reduces the maintenance cost, and is especially suitable for outdoor high dust environment.

Description

Technical Field

[0001] This utility model relates to the field of power transmission and distribution technology, and in particular to an environmentally friendly electrical cabinet. Background Technology

[0002] Electrical cabinets are widely used in the power, communications, and industrial sectors to house and protect electronic components such as circuit breakers, controllers, and servers. As electronic equipment becomes increasingly high-power and high-density, the heat dissipation problem of electrical cabinets is becoming more prominent. Traditional electrical cabinets mostly employ passive or active cooling systems, but these have several shortcomings. First, passive cooling relies on natural convection, resulting in low heat dissipation efficiency. Especially in high-temperature environments or under high loads, the internal temperature of the cabinet can easily exceed the standard, leading to overheating and damage to components and shortening the equipment's lifespan. Second, active cooling systems often use air conditioners or external fans, which are energy-intensive, and the air inlets are prone to dust accumulation, requiring frequent maintenance and increasing operating costs. For example, common electrical cabinets have ventilation holes on the side walls, which promote air circulation, but dust and moisture can easily enter, causing component corrosion or short circuits, reducing reliability.

[0003] In the existing technology, in order to solve the problem of dust accumulation, some electrical cabinets adopt a closed design, but the heat dissipation capacity is even worse, and complex cooling devices have to be added. Although these systems can achieve good heat dissipation, they often ignore the use of environmental energy, resulting in energy waste.

[0004] In general, existing electrical cabinet heat dissipation technologies have the following drawbacks: heat dissipation efficiency is mismatched with the load, resulting in excessive heat dissipation and energy waste under low loads, and insufficient heat dissipation under high loads; the problem of dust accumulation has not been fundamentally solved, leading to high maintenance frequency; the cooling system has poor safety and is prone to accidents; and it does not fully utilize natural energy sources, such as geothermal energy, resulting in insufficient environmental friendliness. Therefore, there is an urgent need in this field for an environmentally friendly, adaptive, and efficient electrical cabinet heat dissipation solution that can automatically adjust the heat dissipation intensity under different loads, reduce dust accumulation, and utilize geothermal temperature differences to reduce energy consumption. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes an environmentally friendly electrical appliance cabinet.

[0006] To achieve the above objectives, this utility model provides the following solution: An environmentally friendly appliance cabinet includes a cabinet body and a support frame. The inner walls of the cabinet body are fixedly connected to the support frame. A cold storage well is excavated in the ground below the cabinet body, and a cooling assembly is installed in the cold storage well. The cooling assembly is fixedly connected to and communicates with the bottom and top surfaces of the cabinet body. Several air inlet plates and several air outlet plates are hinged to both sides of the cabinet body. An air guide assembly is fixedly installed at the top of the inner cavity of the cabinet body, and wind baffles are provided on both sides of the air guide assembly. The wind baffles are fixedly connected to the support frame and the bottom surface of the cabinet body. An air guide cavity is provided between the side walls of the cabinet body and the wind baffles. The air outlet of the air guide assembly communicates with the air guide cavity.

[0007] Preferably, the cooling assembly includes a heat pipe, one end of which is fixedly connected to and communicates with the mounting base; a fan for heat dissipation is fixedly installed inside the mounting base; the fan is positioned between two baffles; the other end of the heat pipe passes through the top surface of the cabinet and is fixedly connected to the cabinet; the other end of the heat pipe is detachably connected to the air guide assembly, and a filter layer is detachably connected to the inner wall of the other end of the heat pipe.

[0008] Preferably, the air guide assembly includes an air guide cover, the bottom surface of which has two arc-shaped air guide grooves that communicate with the air guide cavity; a mounting hole is provided in the center of the air guide groove, and a flexible sealing plate is fixedly connected in the mounting hole, with one end of the two opposite sealing plates bent toward the fan; the sealing plate is detachably connected to one end of the heat pipe; and lifting assemblies are fixedly connected to the four corners of the air guide groove.

[0009] Preferably, the lifting assembly includes a telescopic cylinder, a piston rod is slidably connected inside the telescopic cylinder, and the top end of the piston rod is fixedly connected to one corner of the bottom surface of the air guide groove; the inner cavity of the telescopic cylinder is filled with refrigerant, and a limiting plate is fixedly connected to the top end of the piston rod, and the limiting plate is detachably connected to the top surface of the telescopic cylinder for limiting.

[0010] Preferably, a constant pressure pipe is fixedly connected and connected between adjacent telescopic cylinders.

[0011] Preferably, the air inlet plate and the air outlet plate are respectively hinged to the cabinet body via hinges; the hinges are hinges with torsion springs, and a limiting plate is fixedly connected to one side of the top of the air inlet plate and one side of the bottom of the air outlet plate; the limiting plate is detachably connected to the side wall of the cabinet body.

[0012] Preferably, the cold storage well has a depth of 50m-100m and is filled with water or silt.

[0013] Compared with the prior art, the present invention has the following advantages and technical effects: This invention utilizes a deep cold storage well to exchange the heat extracted from the cooling components and reintroduce it into the cabinet, thus dissipating heat from the electronic components within. Simultaneously, the air guide assembly directs the cooling air blown by the fan through the top air guide channel to the air guide chambers on both sides, and then out through the air outlet plate at the bottom of the cabinet's side wall. The air inlet plate at the top of the cabinet's side wall draws in fresh air from outside the cabinet for replenishment, which is suitable for low-load conditions. When the cabinet is under high load, the high heat inside causes the refrigerant in the lifting assembly to evaporate, which in turn pushes the air guide channel upward, connecting it with the heat pipe and improving the airflow efficiency within the cabinet, thereby enhancing the cabinet's heat dissipation efficiency. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a side view of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the electrical cabinet; Figure 3 This is a side view of the three-dimensional structure of the air guide assembly; Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle; Figure 5 This is a side view of the cabinet's three-dimensional structure. Figure 6 for Figure 5 Schematic diagram of the structure at point B; Figure 7 This is a side view of the three-dimensional structure of the cooling assembly; Figure 8 This is a side view of the three-dimensional structure of the air guide cover.

[0015] The components are as follows: 1. Cabinet; 2. Bracket; 3. Cold storage well; 4. Air inlet plate; 5. Air outlet plate; 6. Baffle plate; 7. Air guide cavity; 8. Heat conduction pipe; 9. Mounting base; 10. Fan; 11. Air guide cover; 12. Air guide groove; 13. Sealing plate; 14. Telescopic cylinder; 15. Piston rod; 17. Limiting plate; 18. Constant pressure pipe; 19. Hinge; 20. Limiting plate. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] It should be noted that all components in the technical solution of this application require necessary additional facilities for water supply, oil supply, power supply, and gas supply for driving and / or control. Unless otherwise stated, they are assumed to be used and equipped with existing technology and no special explanation is required.

[0018] It should be noted that, in order to make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1: Depend on Figure 1-8 The illustrated environmentally friendly electrical appliance cabinet includes a cabinet body 1 and a support frame 2. The inner walls of the cabinet body 1 are fixedly connected to the support frame 2. The cabinet body 1 completely encloses the support frame 2, and the side walls of the cabinet body 1 are all enclosed, reducing the rate of dust accumulation inside the electrical appliance cabinet. A cold storage well 3 is excavated in the ground below the cabinet body 1. The cold storage well 3 has a depth of 50m-100m and is filled with water or silt. The diameter of the cold storage well 3 is between 200mm and 400mm, which is beneficial for the layout of the heat conduction pipes 8 and, by increasing its depth, can make full use of the large temperature difference between the ground and the underground to achieve heat transfer to the cooled air. A cooling assembly is installed inside the cold storage well 3. The cooling assembly is fixedly connected to and communicates with the bottom and top surfaces of the cabinet 1. Several air inlet plates 4 and several air outlet plates 5 are hinged to both sides of the cabinet 1. An air guide assembly is fixedly installed at the top of the inner cavity of the cabinet 1. A baffle plate 6 is installed on both sides of the air guide assembly. The baffle plate 6 is fixedly connected to the bracket 2 and the bottom surface of the cabinet 1. An air guide cavity 7 is provided between the side wall of the cabinet 1 and the baffle plate 6. The air outlet of the air guide assembly is connected to the air guide cavity 7.

[0020] Further optimization of the design includes a cooling component comprising a heat pipe 8, one end of which is fixedly connected to and communicates with a mounting base 9. A heat dissipation fan 10 is fixedly installed inside the mounting base 9. The fan 10 is positioned between two baffle plates 6. The fan 10 can draw air from the heat pipe 8 and blow it onto the electronic components between the two baffle plates 6, thereby cooling them. The other end of the heat pipe 8 penetrates the top surface of the cabinet 1 and is fixedly connected to the cabinet 1. The other end of the heat pipe 8 is detachably connected to an air guide component, and a filter layer is detachably connected to the inner wall of the other end of the heat pipe 8. The filter layer can filter dust from the air drawn in by the heat pipe 8, improving the cleanliness inside the cabinet 1 and reducing the maintenance frequency of the electrical cabinet. The filter layer and its installation method are existing technologies and will not be described in detail here.

[0021] Furthermore, the heat pipe 8 is made of high-density polyethylene (HDPE) or polybutene (PB), which is resistant to corrosion from chemicals in the soil and has a service life of up to 50 years. Its thermal conductivity is approximately 0.43 W / (m·℃), matching the soil's thermal resistance and resulting in high heat exchange efficiency.

[0022] Further optimizing the design, the air guide assembly includes an air guide cover 11. Two arc-shaped air guide grooves 12 are formed on the bottom surface of the air guide cover 11, and these grooves are connected to the air guide cavity 7. A mounting hole is formed in the center of each air guide groove 12, and a flexible sealing plate 13 is fixedly connected inside the mounting hole. The sealing plate 13 is a rubber plate, which can seal the mounting hole by adhering to each other, and by adhering to the side of the heat-conducting pipe 8, allows the heat-conducting pipe 8 to communicate with the air inside the cabinet 1, improving the heat dissipation efficiency of the appliance cabinet. One end of the two opposing sealing plates 13 is bent towards the fan 10; the sealing plates 13 are detachably connected to one end of the heat-conducting pipe 8; and lifting components are fixedly connected to the four corners of the air guide groove 12.

[0023] Further optimizing the design, the lifting assembly includes a telescopic cylinder 14, with a piston rod 15 slidably connected within the telescopic cylinder 14. The top end of the piston rod 15 is fixedly connected to a corner of the bottom surface of the air guide duct 12. The inner cavity of the telescopic cylinder 14 is filled with refrigerant. A limiting plate 17 is fixedly connected to the top end of the piston rod 15, and the limiting plate 17 is detachably connected to the top surface of the telescopic cylinder 14 for limiting movement. The limiting plate 17 fits snugly against the top surface of the telescopic cylinder 14, thus limiting the downward movement of the piston rod 15.

[0024] Furthermore, as an alternative embodiment: the lifting assembly includes four lifting motors, which replace the telescopic cylinder 14 and are fixedly connected to the air guide duct 12. The lifting motors are centrally controlled by a controller and use a temperature sensor as the start signal source to realize the synchronous lifting of the lifting motors and avoid jamming.

[0025] Furthermore, the refrigerant is an aqueous solution of ammonia, with a solubility of 20-30 g / 100 g water. Heating the refrigerant causes the ammonia to escape, pushing the piston rod 15 upwards and causing the air guide duct 12 to rise until the piston rod 15 reaches the top of the inner cavity of the telescopic cylinder 14. At this point, the air guide duct 12 inserts the heat transfer pipe 8, enabling the heat transfer pipe 8 to connect to the air inside the cabinet 1. The ammonia refrigerant reduces the flammability and explosiveness of ordinary heat pipe refrigerants such as ethanol. The amount of refrigerant in the telescopic cylinder 14 is sufficient to ensure that the air guide duct 12 and the heat transfer pipe 8 are properly connected when the temperature of the electrical cabinet exceeds 40°C.

[0026] The scheme is further optimized by fixing and connecting constant pressure pipes 18 between adjacent telescopic cylinders 14, which can balance the pressure inside the telescopic cylinders 14 of the four lifting components and prevent the air guide duct 12 from getting stuck.

[0027] Further optimizing the design, the air inlet plate 4 and the air outlet plate 5 are hinged to the cabinet 1 via hinges 19. The hinges 19 are equipped with torsion springs, ensuring that the air inlet plate 4 and the air outlet plate 5 can perfectly block the side openings of the cabinet 1 without external force, thus achieving a detachable connection with the cabinet 1. A limiting plate 20 is fixedly connected to one side of the top of the air inlet plate 4 and one side of the bottom of the air outlet plate 5; the limiting plate 20 is detachably connected to the side wall of the cabinet 1.

[0028] Furthermore, the limiting plate 20 of the air inlet plate 4 is set in the inner cavity of the cabinet 1, and the limiting plate 20 on one side of the air outlet plate 5 is set on the outer side of the cabinet 1, which is used to control the folding direction of the air inlet plate 4 and the air outlet plate 5.

[0029] The working process of this embodiment is as follows: When the electrical cabinet is operating under low load, the temperature inside cabinet 1 is low (e.g., below 40°C), the lifting components are not activated, the sealing plate 13 remains in a closed state, and the mounting holes of the air guide slot 12 are sealed. The fan 10 starts, drawing in air cooled by the cold storage well 3 from the heat pipe 8 (the low temperature underground is cooled by heat exchange through the heat pipe 8). The air is blown through the mounting base 9 towards the electronic components between the two baffles 6 for direct heat dissipation. The hot air rises to the top of cabinet 1, and due to the closed air guide slot 12, the air is forced through the air guide cavity 7 and out through the air outlet plate 5 at the bottom of the side wall of cabinet 1 (the air outlet plate 5 folds outward under air pressure). Simultaneously, the air inlet plate 4 at the top of the side wall of cabinet 1 folds inward under negative pressure, drawing in fresh external air to replenish it, forming a natural convection circulation. This process reduces the dust accumulation rate because the air inlet plate 4 and the air outlet plate 5 are only opened when needed.

[0030] When the electrical cabinet is under high load, the electronic components generate more heat, causing the temperature inside the cabinet 1 to rise (e.g., exceeding 40°C). This temperature increase heats the refrigerant (ammonia) in the lifting assembly, causing ammonia to evaporate and overflow, pushing the piston rod 15 upwards within the telescopic cylinder 14, thus raising the air guide duct 12. When the piston rod 15 reaches the top of the telescopic cylinder 14, the limiting plate 17 stops it. At this point, the mounting hole of the air guide duct 12 aligns with the other end of the heat pipe 8, and the sealing plate 13 connects with the side of the heat pipe 8. Simultaneously, the fan 10 operates, directly guiding the cool air from the heat pipe 8 into the air guide duct 12, and then quickly distributing it to both sides of the cabinet 1 through the air guide cavity 7, enhancing airflow. Hot air is efficiently exhausted through the exhaust plate 5. Without the suction of the heat pipe 8, the intake plate 4 has a shorter intake volume and a smaller opening; however, the hot air inside the electrical cabinet increases the suction rate, significantly improving heat dissipation efficiency. After the temperature drops, the refrigerant condenses, the piston rod 15 moves downward to reset, the air guide duct 12 disconnects from the heat pipe 8, and the system returns to low-load mode. The entire process achieves adaptive heat dissipation, energy saving and environmental protection, and reduces external energy consumption by utilizing the geothermal temperature difference through the cold storage well 3.

[0031] Furthermore, the fan 10 can achieve stepless speed regulation under the drive of a controller with integrated sensors, thereby improving the heat dissipation efficiency of the electrical cabinet. The controller is existing technology and will not be described in detail here.

[0032] Furthermore, the shape of the heat pipe 8 in the figure is for illustrative purposes only, and the specific application can be set according to the site conditions.

[0033] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An environmentally friendly appliance cabinet, characterized in that, The system includes a cabinet (1) and a support (2). The inner wall of the cabinet (1) is fixedly connected to the support (2). A cold storage well (3) is excavated in the ground below the cabinet (1). A cooling component is installed in the cold storage well (3). The cooling component is fixedly connected to and communicates with the bottom and top surfaces of the cabinet (1). Several air inlet plates (4) and several air outlet plates (5) are hinged to both sides of the cabinet (1). A wind guide component is fixedly installed at the top of the inner cavity of the cabinet (1). A wind baffle (6) is installed on both sides of the wind guide component. The wind baffle (6) is fixedly connected to the support (2) and the bottom surface of the cabinet (1). A wind guide cavity (7) is provided between the side wall of the cabinet (1) and the wind baffle (6). The air outlet of the wind guide component is connected to the wind guide cavity (7).

2. The environmentally friendly electrical appliance cabinet according to claim 1, characterized in that: The cooling assembly includes a heat pipe (8), one end of which is fixedly connected to and communicates with a mounting base (9); a fan (10) for heat dissipation is fixedly installed inside the mounting base (9); the fan (10) is positioned between two baffles (6); the other end of the heat pipe (8) passes through the top surface of the cabinet (1) and is fixedly connected to the cabinet (1); the other end of the heat pipe (8) is detachably connected to the air guide assembly, and a filter layer is detachably connected to the inner wall of the other end of the heat pipe (8).

3. The environmentally friendly electrical appliance cabinet according to claim 2, characterized in that: The air guide assembly includes an air guide cover (11), on the bottom surface of which two arc-shaped air guide grooves (12) are provided, and the air guide grooves (12) are connected to the air guide cavity (7); an installation hole is provided in the center of the air guide groove (12), and a flexible sealing plate (13) is fixedly connected in the installation hole, with one end of the two opposite sealing plates (13) bent toward the fan (10); the sealing plate (13) is detachably connected to one end of the heat pipe (8); and lifting components are fixedly connected to the four corners of the air guide groove (12).

4. The environmentally friendly electrical appliance cabinet according to claim 3, characterized in that: The lifting assembly includes a telescopic cylinder (14), and a piston rod (15) is slidably connected inside the telescopic cylinder (14). The top end of the piston rod (15) is fixedly connected to one corner of the bottom surface of the air guide groove (12). The inner cavity of the telescopic cylinder (14) is filled with refrigerant. A limiting plate (17) is fixedly connected to the top end of the piston rod (15). The limiting plate (17) is detachably connected to the top surface of the telescopic cylinder (14).

5. The environmentally friendly electrical appliance cabinet according to claim 4, characterized in that: A constant pressure pipe (18) is fixedly connected and connected between adjacent telescopic cylinders (14).

6. The environmentally friendly electrical appliance cabinet according to claim 1, characterized in that: The air inlet plate (4) and the air outlet plate (5) are respectively hinged to the cabinet (1) by hinges (19); the hinge (19) is a hinge with a torsion spring, and a limiting plate (20) is fixedly connected to one side of the top of the air inlet plate (4) and one side of the bottom of the air outlet plate (5); the limiting plate (20) is detachably connected to the side wall of the cabinet (1).

7. The environmentally friendly electrical appliance cabinet according to claim 1, characterized in that: The cold storage well (3) is 50m-100m deep and filled with water or silt.

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