Multi-epitope ammeter box with high heat dissipation

Abstract

The application belongs to the technical field of power supporting facilities, and particularly discloses a multi-meter electric meter box with efficient heat dissipation, which comprises a box body, a box door hingedly connected to the box body, a plurality of observation windows installed on the box door, an installation chamber arranged in the box body, a plurality of guide members arranged in the installation chamber, a plurality of metering electric meters installed in the installation chamber through at least one row of installation racks, and a heat-conducting and heat-dissipating structure comprising an installation plate arranged in the installation chamber. The heat-conducting and heat-dissipating structure composed of a slidable heat-conducting plate and heat-dissipating fins actively conducts the heat on the side of the dense electric meters to the heat-dissipating fins at the open space between the electric meters, and combines with a clear airflow path to enable the cooling airflow to directly blow the main heat-dissipating surface without any obstruction, thereby solving the fundamental problem of the airflow being blocked by the dense electric meters and the low heat dissipation efficiency in the prior art, and realizing the accurate and efficient heat dissipation of the core heating area.

Description

Technical Field

[0001] This invention belongs to the field of power supporting facilities, and specifically discloses a multi-position meter box with high-efficiency heat dissipation. Background Technology

[0002] Against the backdrop of smart grid construction and upgrading, electricity metering and comprehensive management are core components for achieving intelligent grid dispatching, precise operation and maintenance, and efficient energy saving. Multi-position meter boxes, as core electrical instrumentation equipment at the end of the smart grid, undertake the critical functions of electricity data collection, transmission, and terminal management, and are widely used in electricity metering and management in smart grid-covered scenarios such as industrial parks and residential communities. Industrial multi-position meter boxes are often deployed in open-air environments, exposed to complex external conditions such as wind, rain, dust, and extreme temperatures for extended periods.

[0003] Existing heat dissipation solutions for industrial outdoor multi-meter boxes generally employ two sets of fans to achieve air intake and exhaust. Heat is removed through air circulation and replacement within the chamber. This method can achieve basic heat dissipation functions and has the advantages of simple structure, convenient implementation, and low cost. It can alleviate the problem of heat accumulation to a certain extent and temporarily meet the basic heat dissipation needs in ordinary scenarios.

[0004] However, due to the structural characteristics of industrial multi-meter boxes, which are designed to meet the high data acquisition requirements of smart grids and feature densely packed, often side-by-side, meter arrangements, significant airflow obstruction occurs within the box. This prevents fan-driven convective airflow from effectively reaching the meters and data acquisition modules located far from the air vents, hindering the efficient removal of heat generated in these areas and resulting in low actual convective cooling efficiency. Therefore, existing heat dissipation solutions need to be improved through structural optimization to meet the upgrading and development needs of smart grids. Summary of the Invention

[0006] In view of this, the purpose of this invention is to provide a multi-position meter box with high-efficiency heat dissipation to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides a multi-position meter box with high-efficiency heat dissipation, including a box body and a door hinged to the box body. The door has multiple observation windows. The box body contains an installation chamber with several wire components. Multiple meters are installed in the installation chamber via at least one row of mounting brackets. The invention also includes:

[0008] A heat-conducting and heat-dissipating structure includes a mounting plate disposed in an installation chamber, wherein a plurality of heat-conducting plates that can contact the side of a meter are slidably mounted on the mounting plate, and a plurality of heat dissipation fin groups are disposed on the heat-conducting plates.

[0009] An airflow circulation structure includes a top cover at the top of the housing and an air inlet chamber at the bottom of the housing. The air inlet chamber has an air inlet, a first guide fan assembly, and a second AC vent assembly. The top cover has an exhaust outlet, a second AC fan assembly, and an exhaust duct extending to the inside of the housing door.

[0010] The control unit includes a temperature sensor and a controller located in the installation chamber;

[0011] The second AC port group is connected to the first AC port group which is located on the side wall of the enclosure and faces the heat dissipation fin group. The inside of the enclosure door is provided with a connection interface for connecting to the exhaust pipe and a third AC port group which faces the first AC port group.

[0012] In the above technical solution, preferably, the heat conduction and heat dissipation structure further includes a motor, a sprocket transmission mechanism driven by the motor, and a plurality of drive disks synchronously driven by the sprocket transmission mechanism. The drive disks are symmetrically provided with arc-shaped guide grooves, and the heat conduction plate slides in cooperation with the arc-shaped guide grooves through a slider.

[0013] In the above technical solution, preferably, the side of the heat-conducting plate facing the meter is provided with a flexible fitting pad, and the heat-conducting plate is provided with a clearance opening for avoiding the wire components.

[0014] In the above technical solution, preferably, the air inlet cavity is provided with an airflow guide plate, and the cross-section of the airflow guide plate is L-shaped.

[0015] In the above technical solution, preferably, the air inlet cavity is also provided with a dustproof net.

[0016] In the above technical solution, preferably, the top cover is provided with a water baffle, and the water baffle is located inside the exhaust port.

[0017] In the above technical solution, preferably, the door is a hollow double-layer structure, and the third AC hole group and the interface are both located on its inner layer plate.

[0018] In the above technical solution, preferably, the mounting bracket is arranged in multiple rows, and the heat dissipation fin group and the group facing the first AC hole are located in the space between two adjacent rows of mounting brackets.

[0019] In the above technical solution, preferably, the exhaust duct and the interface on the box door are detachable.

[0020] In the above technical solution, preferably, the housing is composed of a first housing and a second housing that are interconnected, the installation chamber is located in the first housing, and the air inlet cavity is formed in the second housing.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The heat conduction and heat dissipation structure, consisting of a sliding heat conduction plate and heat dissipation fins, actively conducts the heat from the sides of the dense electric meters to the heat dissipation fins in the open space between the electric meter rows. Combined with a clear airflow path, the cooling airflow can blow directly onto the main heat dissipation surface without obstruction. This solves the fundamental problem of airflow being blocked by dense electric meters and low heat dissipation efficiency in the existing technology, and achieves precise and efficient heat dissipation of the core heat-generating area.

[0023] Through the airflow circulation structure consisting of the bottom air inlet cavity and the top cover, especially by using the hollow layer of the door as an air duct and setting the opposite air inlet and exhaust hole groups, a vertical forced convection channel with a short path is formed inside the box. This effect can quickly deliver cold air and extract hot air. The convection intensity is high and the wind resistance is low, which greatly improves the overall heat dissipation efficiency and effectively prevents heat accumulation.

[0024] The heat-conducting plate sliding mechanism, driven synchronously by a motor, sprocket transmission mechanism, and drive disk, enables synchronous and adaptive clamping and contact with all electricity meters. This allows the equipment to quickly adapt to different models of electricity meters and ensure good thermal contact. Combined with an intelligent control unit consisting of a temperature sensor and controller, the heat dissipation system can be started and stopped on demand and run automatically. While ensuring heat dissipation effect, it also takes into account energy saving and intelligent operation, improving the applicability and economy of the equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the internal structure of the first housing of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the second housing and top cover of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the second housing of the present invention from a second perspective.

[0029] Figure 5 This is a schematic diagram of the internal structure of the top cover of the present invention;

[0030] Figure 6 This is a schematic diagram of the mounting plate position structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the mating structure of the heat-conducting plate and the drive disk of the present invention;

[0032] Figure 8 This is a schematic diagram of the sealing structure of the present invention.

[0033] In the diagram: 1. Housing; 2. Door; 3. First Housing; 4. Second Housing; 5. Top Cover; 6. Installation Chamber; 7. Mounting Frame; 8. Meter; 9. Wire Components; 10. First AC Port Group; 11. Heat Conducting Plate; 12. Heat Dissipation Fin Group; 13. Exhaust Duct; 14. Airflow Guide Plate; 15. First Airflow Guide Fan Group; 16. Dustproof Net; 17. Water Baffle; 18. Second Airflow Guide Fan Group; 19. Second AC Port Group; 20. Exhaust Vent; 21. Mounting Plate; 22. Motor; 23. Sprocket Drive Mechanism; 24. Drive Disc; 25. Arc-shaped Guide Groove; 26. Slider; 27. Fitting Pad; 28. Clearance Opening; 29. ​​Third AC Port Group; 30. Observation Window; 31. Interface; 32. Controller; 33. Temperature Sensor. Detailed Implementation

[0034] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0036] like Figures 1-8 The diagram shows a multi-position meter box with high-efficiency heat dissipation, including a box body 1 and a door 2 hinged to the box body 1. Multiple observation windows 30 are fixedly installed on the door 2 by sealing strips. The box body 1 is composed of a first box body 3 and a second box body 4 that are interconnected and connected by bolts to form an integrated structure. The first box body 3 has an installation chamber 6 inside, which provides space for meter installation and wiring. The second box body 4 has an air intake chamber inside, which is used for airflow introduction and preliminary treatment.

[0037] Several wire components 9 are fixed inside the installation chamber 6. The wire components 9 are used to organize the wiring of the metering meters 8. Multiple metering meters 8 are fixedly installed inside the installation chamber 6 by at least one row of mounting racks 7. The mounting racks 7 are arranged in multiple rows to make the metering meters 8 orderly arranged. At the same time, airflow channels are reserved between two adjacent rows of mounting racks 7 to provide conditions for subsequent precise heat dissipation. The equipment also integrates a heat conduction and heat dissipation structure, an airflow circulation structure, and a control unit. The three work together to achieve the matching of heat dissipation efficiency and protection performance.

[0038] The heat conduction and heat dissipation structure includes a mounting plate 21 fixed to the inner wall of the mounting chamber 6 by bolts. The mounting plate 21 is arranged along the length of the mounting chamber 6. Several heat conduction plates 11 are slidably mounted on the mounting plate 21 via slide rails. The heat conduction plates 11 can move back and forth along the slide rails, and their positions correspond to the metering meter 8, so as to accurately fit the side of the metering meter 8. A flexible bonding pad 27 is attached to the side of the heat-conducting plate 11 facing the meter 8. The bonding pad 27 can fit tightly against the surface of the meter, reducing the heat conduction gap and avoiding hard contact that could cause wear to the meter. The heat-conducting plate 11 also has a clearance opening 28 to avoid the wire component 9, ensuring that the heat-conducting plate 11 will not squeeze or damage the circuit when it moves. Several heat dissipation fin groups 12 are fixed on the side of the heat-conducting plate 11 away from the meter 8. The heat dissipation fin groups 12 extend into the reserved channel between two adjacent rows of mounting brackets 7 and are directly opposite the first AC hole group 10 opened on the side wall of the housing 1, so that the subsequent airflow can directly blow onto the heat dissipation fin groups 12 and quickly remove the heat.

[0039] The heat dissipation structure also includes a motor 22 fixed to one end of the mounting plate 21 via a mounting base. The output end of the motor 22 is connected to a sprocket transmission mechanism 23. The sprocket transmission mechanism 23 consists of a chain and a sprocket and is fixed to the mounting plate 21 via a bracket. It can synchronously transmit the power of the motor 22 to multiple drive discs 24. The drive discs 24 are rotatably mounted on the mounting plate 21 via bearings. Their number corresponds to the heat-conducting plate 11. The drive discs 24 are symmetrically provided with arc-shaped guide grooves 25. The end of the heat-conducting plate 11 is fixed with a slider 26. The slider 26 is embedded in the arc-shaped guide groove 25 and slides in cooperation with the arc-shaped guide groove 25. When the motor 22 starts, it drives multiple drive discs 24 to rotate synchronously via the sprocket transmission mechanism 23. During the rotation of the drive discs 24, the arc-shaped guide groove 25 pushes the slider 26 to move back and forth, thereby driving the heat-conducting plate 11 to move in opposite directions along the slide rail, so as to achieve contact or separation with the meter 8. This can not only adapt to meter 8 of different widths, but also facilitate the disassembly and maintenance of the meter.

[0040] The airflow circulation structure includes a top cover 5 fixed to the top of the housing 1 by bolts. The top cover 5 covers the top of the housing 1 and serves to prevent rain and dust. A water baffle 17 is fixed inside the top cover 5. The water baffle 17 is located inside the exhaust port 20 and can prevent rainwater from splashing into the top cover 5 from the exhaust port 20, thus preventing rainwater from entering the housing 1 and damaging the components. An exhaust port 20 is opened on the top cover 5, and a second AC fan group 18 is fixed at the exhaust port 20. An exhaust duct 13 is also fixed inside the top cover 5. The exhaust duct 13 extends to the inside of the door 2 and can be detachably connected to the interface 31 opened on the inner layer of the door 2. This design allows the door 2 to be opened without moving the exhaust duct 13, reducing the weight of the door 2 and making it easier for the staff to open the door 2. After the door 2 is closed, the exhaust duct 13 is precisely connected to the interface 31 to ensure that the exhaust operation is normal.

[0041] The airflow circulation structure also includes an air inlet chamber located inside the second housing 4. An air inlet is provided on the side wall of the air inlet chamber, and a dustproof net 16 is fixed at the air inlet. The dustproof net 16 can filter dust and debris in the air, preventing dust from entering the housing 1 and adhering to the meter and wiring, affecting heat dissipation and equipment operation. A first guide fan group 15 and an airflow guide plate 14 are fixed inside the air inlet chamber. The cross-section of the airflow guide plate 14 is L-shaped, which can compress the air inlet channel, increase the air pressure, and allow the airflow to enter the installation chamber 6 more smoothly. A second AC hole group 19 is also provided on the air inlet chamber. The second AC hole group 19 is connected to the first AC hole group 10 on the side wall of the housing 1 to form a complete air inlet channel. A third AC hole group 29 is provided on the inner side of the housing door 2, facing the first AC hole group 10. The third AC hole group 29 is located on the inner layer plate of the housing door 2. The housing door 2 has a hollow double-layer structure, which can further block the intrusion of external dust and rainwater, and improve the protective performance.

[0042] The control unit includes a temperature sensor 33 and a controller 32 fixed in the installation chamber 6 by a bracket. The detection end of the temperature sensor 33 faces the meter 8 and can monitor the temperature in the installation chamber 6 in real time, especially the temperature around the meter 8. The temperature sensor 33 is electrically connected to the controller 32 and can transmit the monitored temperature signal to the controller 32 in real time. The controller 32 is electrically connected to the first guide fan group 15, the second AC fan group 18, and the motor 22 to realize intelligent control.

[0043] In use, the motor 22 drives the sprocket transmission mechanism 23 to rotate. The sprocket transmission mechanism 23 drives multiple drive discs 24 to rotate synchronously. With the sliding cooperation of the arc-shaped guide groove 25 and the slider 26, the heat conduction plate 11 moves towards each other, so that the bonding pad 27 on the heat conduction plate 11 is tightly attached to the side of the meter 8. The heat generated by the meter 8 when it is working is transferred to the heat conduction plate 11 through the bonding pad 27. The heat conduction plate 11 conducts the heat to the heat dissipation fin group 12. The heat dissipation fin group 12 increases the heat dissipation area, so that the heat is initially dissipated into the air, realizing the concentration of heat. The dispersed heat points are concentrated in the airflow channel between the two adjacent rows of mounting brackets 7, avoiding the accumulation of heat in the dense area of ​​the meter.

[0044] Temperature sensor 33 monitors the temperature inside the installation chamber 6 in real time. When the temperature reaches the set threshold, temperature sensor 33 transmits a signal to controller 32. Controller 32 simultaneously starts the first airflow fan group 15 and the second AC fan group 18. After the first airflow fan group 15 starts, it draws cold air from the outside through the air inlet. The cold air is first filtered by dust filter 16 to remove dust and debris, and then flows to airflow guide plate 14. Airflow guide plate 14 compresses the airflow channel to increase wind pressure, so that the cold air passes more smoothly through the second AC port group 19 and the first AC port group 10 and enters the installation chamber 6 of the first housing 3. It blows directly onto the heat dissipation fin group 12 and at the same time blows onto the wiring terminal below the meter 8, thus carrying away the heat on the heat dissipation fin group 12 and the heat accumulated on the wiring terminal, achieving precise heat dissipation.

[0045] At the same time, the second AC fan group 18 starts and draws hot air from the inside of the installation chamber 6 through the exhaust pipe 13 and the interface 31 on the door 2. Since the third AC hole group 29 on the door 2 is directly opposite the first AC hole group 10 and the heat dissipation fin group 12, it can quickly draw hot air from the heat dissipation area, forming a two-way airflow circulation. After the hot air is drawn into the top cover 5, it is discharged to the outside through the exhaust port 20. The baffle plate 17 inside the top cover 5 can prevent rainwater from splashing in from the exhaust port 20, thus preventing rainwater from entering the equipment. This method of combined blowing and exhaust forms a complete air intake and exhaust circulation, which allows the air in the installation chamber 6 to be quickly replaced. Especially in the area with dense electricity meters, it forms efficient convection, which can effectively improve heat dissipation efficiency and alleviate the problem of heat accumulation in electricity meters far from the air outlet.

[0046] When the temperature sensor 33 detects that the temperature inside the installation chamber 6 has dropped to a safe threshold, the controller 32 controls the first guide fan group 15 and the second AC fan group 18 to stop operating, leaving only the heat conduction and heat dissipation structure to continue working, so as to achieve natural heat dissipation, taking into account both heat dissipation effect and energy saving. When it is necessary to disassemble and repair the meter 8, the motor 22 drives the sprocket transmission mechanism 23 to rotate in the opposite direction, driving the heat conduction plate 11 to move in the opposite direction and detach it from the meter 8, so that the meter can be easily removed without disassembling other parts, thus improving the convenience of maintenance.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A multi-position meter box with high-efficiency heat dissipation, comprising a box body (1) and a door (2) hinged to the box body (1), wherein the door (2) is provided with a plurality of observation windows (30), the box body (1) is provided with an installation chamber (6), the installation chamber (6) is provided with a plurality of wire fittings (9), and a plurality of metering meters (8) are installed in the installation chamber (6) by at least one row of mounting brackets (7), characterized in that, Also includes: The heat conduction and heat dissipation structure includes a mounting plate (21) set in the mounting chamber (6), on which a plurality of heat conduction plates (11) that can contact the side of the meter (8) are slidably mounted, and a plurality of heat dissipation fin groups (12) are provided on the heat conduction plates (11). An airflow circulation structure includes a top cover (5) located at the top of the housing (1) and an air inlet cavity located at the bottom of the housing (1). The air inlet cavity is provided with an air inlet, a first guide fan assembly (15), and a second AC vent assembly (19). The top cover (5) is provided with an exhaust port (20), a second AC fan assembly (18), and an exhaust duct (13) extending to the inside of the housing door (2). The control unit includes a temperature sensor (33) and a controller (32) located in the installation chamber (6). The second AC hole group (19) is connected to the first AC hole group (10) which is located on the side wall of the box (1) and faces the heat dissipation fin group (12). The inner side of the box door (2) is provided with a docking interface (31) that connects to the exhaust pipe (13) and a third AC hole group (29) facing the first AC hole group (10).

2. The multi-position meter box with high-efficiency heat dissipation according to claim 1, characterized in that, The heat conduction and heat dissipation structure also includes a motor (22), a sprocket transmission mechanism (23) driven by the motor (22), and a plurality of drive disks (24) synchronously driven by the sprocket transmission mechanism (23). The drive disks (24) are symmetrically provided with arc-shaped guide grooves (25), and the heat conduction plate (11) slides in cooperation with the arc-shaped guide grooves (25) through a slider (26).

3. The multi-position meter box with high-efficiency heat dissipation according to claim 1, characterized in that, The heat-conducting plate (11) has a flexible fitting pad (27) on the side facing the meter (8), and the heat-conducting plate (11) has a clearance opening (28) for avoiding the wire component (9).

4. The high-efficiency heat dissipation multi-position meter box according to claim 1, characterized in that, The air inlet cavity is provided with an airflow guide plate (14), and the cross-section of the airflow guide plate (14) is L-shaped.

5. The multi-position meter box with high-efficiency heat dissipation according to claim 1, characterized in that, The air inlet cavity is also equipped with a dustproof net (16).

6. The multi-position meter box with high-efficiency heat dissipation according to claim 1, characterized in that, The top cover (5) is provided with a water baffle (17) inside, and the water baffle (17) is located inside the exhaust port (20).

7. The multi-position meter box with high-efficiency heat dissipation according to claim 1, characterized in that, The door (2) is a hollow double-layer structure, and the third communication hole group (29) and the interface (31) are both located on its inner layer plate.

8. The high-efficiency heat dissipation multi-position meter box according to claim 1, characterized in that, The mounting bracket (7) is arranged in multiple rows, and the heat dissipation fin group (12) and the first AC hole group (10) are located in the space between two adjacent rows of mounting brackets (7).

9. A multi-position meter box with high-efficiency heat dissipation according to claim 1, characterized in that, The exhaust pipe (13) and the interface (31) on the box door (2) are detachable.

10. A multi-position meter box with high-efficiency heat dissipation according to claim 1, characterized in that, The housing (1) is composed of a first housing (3) and a second housing (4) that are interconnected. The installation chamber (6) is located inside the first housing (3), and the air inlet cavity is formed inside the second housing (4).

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