Modularized low-voltage electric energy metering box

Abstract

The utility model discloses a modularized low-voltage electric energy metering box which comprises a low-voltage electric energy metering box body, a mounting plate is arranged in the low-voltage electric energy metering box body, an air switch guide rail is arranged at the lower end of the inner wall of the rear side of the low-voltage electric energy metering box body, and the modularized low-voltage electric energy metering box further comprises a heat dissipation mechanism. The heat dissipation mechanism comprises a flow guide shell, low-voltage electric energy meter mounting grooves, air outlet pipes and air holes, the flow guide shell is arranged on the inner wall of the rear side of the low-voltage electric energy metering box body, the low-voltage electric energy meter mounting grooves are formed in the front surface of the flow guide shell, and the mounting plates are arranged in the low-voltage electric energy meter mounting grooves. According to the modularized low-voltage electric energy metering box, the air flow for heat dissipation is guided to be obliquely blown out from the periphery of the low-voltage electric energy meter through cooperation of the flow guide shell and the air outlet pipe, compared with a mode that the air flow directly flows in the box body for heat dissipation, heat generated by the low-voltage electric energy meter can be dissipated more accurately, and the heat dissipation effect of the modularized low-voltage electric energy metering box is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of low-voltage power metering boxes, specifically a modular low-voltage power metering box. Background Technology

[0002] A low-voltage electricity metering box refers to a box-type complete set of equipment used for metering low-voltage electricity of 380V and below. Its main function is to install the core metering component—the electricity meter. Low-voltage electricity metering boxes typically adopt a modular design, with internal components such as the electricity meter and circuit breaker using detachable connections. Metering components can be added or removed as needed, and they also have anti-theft measures, effectively reducing the occurrence of electricity theft and improving the efficiency of meter reading by the power supply bureau. In the existing technology, the authorized publication number CN 118213885... B proposes a modular energy metering box, including a main cabinet. A main control mechanism is fixedly installed inside the main cabinet, along with a switch assembly for controlling electrical equipment. An extension plate is fixed to the right side of the main cabinet, and several splicing boxes for installing electronic components are stacked on top of the extension plate. Splicing components for connection are installed on the outside of the splicing boxes. During use, the modular energy metering box dissipates heat by circulating air within the box through a fan. However, due to the influence of the airflow's direction, the contact between the airflow and the low-voltage energy meter is not comprehensive, which can easily affect the accuracy of heat dissipation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a modular low-voltage electricity metering box. The airflow for heat dissipation is guided to blow out at an angle from all sides of the low-voltage electricity meter, which can more accurately dissipate the heat generated by the low-voltage electricity meter, with higher heat dissipation efficiency, thus improving the heat dissipation effect of the modular low-voltage electricity metering box and effectively solving the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a modular low-voltage electricity metering box, comprising a low-voltage electricity metering box body, wherein mounting plates are respectively provided inside the low-voltage electricity metering box body, an air switch guide rail is provided at the lower end of the rear inner wall of the low-voltage electricity metering box body, and a heat dissipation mechanism is also included.

[0005] The heat dissipation mechanism includes a flow guide shell, a low-voltage energy meter mounting slot, an air outlet duct, and air vents. The flow guide shell is located on the rear inner wall of the low-voltage energy metering box. The front surface of the flow guide shell is provided with low-voltage energy meter mounting slots, and mounting plates are respectively set inside the low-voltage energy meter mounting slots. The front surface of the flow guide shell is provided with air outlet ducts. Air vents are provided on the inner sides of two horizontally adjacent air outlet ducts and on the inner sides of two vertically adjacent air vents. Through the cooperation of the flow guide shell and the air outlet ducts, the airflow for heat dissipation is guided to be blown out obliquely from all sides of the low-voltage energy meter. Compared with the method of airflow flowing directly inside the box for heat dissipation, the heat generated by the low-voltage energy meter can be dissipated more accurately, improving the heat dissipation effect of the modular low-voltage energy metering box.

[0006] Furthermore, the heat dissipation mechanism also includes an air inlet pipe, which is located at the air inlet on the left side of the low-voltage power metering box. An electric fan is installed at the left end of the air inlet pipe, and the right end of the air inlet pipe is connected to the guide shell to provide power for the airflow.

[0007] Furthermore, the heat dissipation mechanism also includes flow guide plates, which are respectively disposed between the front and rear inner walls of the air inlet pipe. The two flow guide plates are symmetrically distributed vertically to guide the airflow evenly into the interior of the flow guide shell in the vertical direction.

[0008] Furthermore, the heat dissipation mechanism also includes a guide plate, which is respectively disposed on the rear inner wall of the guide shell. There is a gap between the horizontal plate of the guide plate and the front inner wall of the guide shell to guide the airflow into the air outlet pipe.

[0009] Furthermore, all the air vents are oblique holes, and the air guide shell gradually tilts from back to front toward the adjacent low-voltage energy meter mounting slot, so that the airflow is blown out at an angle and accurately carries the heat away from the vicinity of the low-voltage energy meter.

[0010] Furthermore, a dustproof net is provided at the left end of the air inlet pipe, and a dustproof net is provided on the right side of the low-voltage electricity metering box. The dustproof net is installed in conjunction with the air outlet on the right side of the low-voltage electricity metering box to prevent external dust from entering the interior of the low-voltage electricity metering box.

[0011] Furthermore, the low-voltage energy meter mounting slots are all connected to the interior of the flow guide shell, and the inner sidewalls of the low-voltage energy meter mounting slots are all provided with connecting support plates. The mounting plates are respectively set between the front surfaces of the four connecting support plates in the same low-voltage energy meter mounting slot. The mounting plates are all aluminum alloy heat-conducting plates, which are used to conduct the heat generated by the low-voltage energy meter to the air flowing inside the flow guide shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This modular low-voltage power metering box has the following advantages:

[0013] By combining the air guide shell and the air outlet pipe, the airflow for heat dissipation is guided to be blown out at an angle from all sides of the low-voltage energy meter. Compared with the method of airflow flowing directly inside the box for heat dissipation, the heat generated by the low-voltage energy meter can be dissipated more accurately, resulting in higher heat dissipation efficiency and improving the heat dissipation effect of the modular low-voltage energy metering box. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the overall device of this utility model, viewed from the front and in cross-section.

[0016] Figure 3 This is a schematic diagram of the flow guide shell of this utility model;

[0017] Figure 4 This is a structural schematic diagram of the front cross-section of the flow guide shell of this utility model;

[0018] Figure 5 This is a top view of the flow guide shell of this utility model.

[0019] In the diagram: 1 Low-voltage electricity metering box, 2 Mounting plate, 3 Air switch rail, 4 Heat dissipation mechanism, 41 Air guide shell, 42 Low-voltage electricity meter mounting slot, 43 Air outlet pipe, 44 Air hole, 45 Air guide inclined plate, 46 Air guide plate, 47 Air inlet pipe, 5 Electric fan, 6 Dustproof net one, 7 Dustproof net two, 8 Connecting support plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5This embodiment provides a technical solution: a modular low-voltage energy metering box, including a low-voltage energy metering box body 1, providing space for the installation of low-voltage energy metering components. The low-voltage energy metering box body 1 is equipped with a controller to control the start and stop of the heat dissipation components. An AT89C4051 microcontroller can be selected. The low-voltage energy metering box body 1 is equipped with mounting plates 2. The lower end of the rear inner wall of the low-voltage energy metering box body 1 is equipped with an air switch rail 3. The low-voltage energy meters are installed on the surface of the mounting plates 2, and the air switches are installed on the surface of the air switch rail 3. According to the power consumption needs, an appropriate number of low-voltage energy meters and air switches can be selected to facilitate modular adjustment of the metering components inside the low-voltage energy metering box. It also includes a heat dissipation mechanism 4.

[0022] The heat dissipation mechanism 4 includes a guide shell 41, a low-voltage energy meter mounting slot 42, an air outlet duct 43, and air vents 44. The guide shell 41 is located on the rear inner wall of the low-voltage energy metering box 1. The front surface of the guide shell 41 is provided with the low-voltage energy meter mounting slot 42, and the mounting plates 2 are respectively located inside the low-voltage energy meter mounting slot 42. The front surface of the guide shell 41 is provided with the air outlet duct 43. The inner surfaces of two horizontally adjacent air outlet ducts 43 and the inner surfaces of two vertically adjacent air vents 44 are provided with air vents 44. The air outlet ducts 43 are located on the left and right sides of the low-voltage energy meter mounting slot 42. Under the guidance of the guide shell 41, the airflow enters the air outlet duct 43 evenly and is discharged from the air vents 44 to the perimeter of the low-voltage energy meter, thus dissipating the airflow for heat dissipation. The cooling mechanism 4 also includes an air inlet duct 47, located at the air inlet on the left side of the low-voltage energy metering box 1. An electric fan 5 is installed at the left end of the air inlet duct 47, and the right end of the air inlet duct 47 is connected to the guide shell 41. The input end of the electric fan 5 is electrically connected to the output end of the controller inside the low-voltage energy metering box 1. Activating the electric fan 5 provides power for airflow, allowing external air to enter the air inlet duct 47. The cooling mechanism 4 also includes guide ramps 45, which are respectively positioned between the front and rear inner walls of the air inlet duct 47. The two guide ramps 45 are symmetrically distributed vertically to guide the airflow within the air inlet duct 47. The airflow is guided vertically to enter the interior of the guide shell 41 evenly. The heat dissipation mechanism 4 also includes guide plates 46, which are respectively disposed on the rear inner wall of the guide shell 41. There is a gap between the horizontal plate of the guide plate 46 and the front inner wall of the guide shell 41. As the air flows from left to right inside the guide shell 41, the inclined surface of the guide plate 46 guides the airflow between the horizontal plate of the guide plate 46 and the front inner wall of the guide shell 41, guiding the airflow into the adjacent air outlet duct 43. The air holes 44 are all inclined holes. The guide shell 41 gradually tilts from back to front towards the adjacent low-voltage energy meter mounting slot 42. Due to the inclination of the air holes 44, the airflow flows forward after leaving the air holes 44, accurately and evenly carrying low-voltage energy. The heat generated by the meter operation is kept away from the low-voltage electricity meter. A dustproof mesh 6 is installed at the left end of the air inlet duct 47, and a second dustproof mesh 7 is installed on the right side of the low-voltage electricity metering box 1. The second dustproof mesh 7 is installed in conjunction with the air outlet on the right side of the low-voltage electricity metering box 1 to filter dust from the air and reduce the entry of external dust into the low-voltage electricity metering box 1. The low-voltage electricity meter mounting slots 42 are all connected to the interior of the guide shell 41. Connecting support plates 8 are provided on the inner side walls of the low-voltage electricity meter mounting slots 42. Mounting plates 2 are respectively positioned between the front surfaces of the four connecting support plates 8 within the same low-voltage electricity meter mounting slot 42. The mounting plates 2 are all aluminum alloy heat-conducting plates. During the airflow from left to right inside the guide shell 41, the airflow contacts the rear side of the mounting plates 2.The heat generated by the low-voltage electricity meter is conducted to the airflow using an aluminum alloy thermally conductive mounting plate 2.

[0023] The working principle of the modular low-voltage energy metering box provided by this utility model is as follows: During use, low-voltage energy meters are installed on the surface of the mounting plate 2, and air switches are installed on the surface of the air switch guide rail 3. A suitable number of low-voltage energy meters and air switches are selected according to the power consumption needs, facilitating modular adjustment of the metering components inside the low-voltage energy metering box. During operation, the controller inside the low-voltage energy metering box 1 starts the electric fan 5, providing power for airflow and allowing external air to enter the air inlet pipe 47. As the air flows within the air inlet pipe 47, the guide plate 45 guides the airflow direction, ensuring uniform airflow in the vertical direction. As air flows from left to right inside the guide shell 41, it contacts the rear side of the mounting plate 2. The heat generated by the low-voltage energy meter is conducted into the airflow by the mounting plate 2, which is made of aluminum alloy thermally conductive material. At the same time, the inclined surface of the guide plate 46 guides the airflow between the horizontal plate of the guide plate 46 and the front inner wall of the guide shell 41, guiding the airflow into the adjacent air outlet 43. The airflow is then discharged from the air hole 44 to the perimeter of the low-voltage energy meter. Due to the inclination of the air hole 44, the airflow flows forward after leaving the air hole 44, accurately and evenly carrying away the heat generated by the low-voltage energy meter away from the low-voltage energy meter. Finally, the airflow carrying the heat is discharged to the outside from the air outlet on the right side of the low-voltage energy metering box 1.

[0024] It is worth noting that the electric fan 5 disclosed in the above embodiments can be freely configured according to the actual application scenario. It is recommended to use the 6028 model airflow fan. The controller controls the operation of the electric fan 5 using methods commonly used in the prior art.

[0025] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A modular low-voltage electricity metering box, comprising a low-voltage electricity metering box body (1), wherein mounting plates (2) are respectively provided inside the low-voltage electricity metering box body (1), and an air switch rail (3) is provided at the lower end of the rear inner wall of the low-voltage electricity metering box body (1), characterized in that: It also includes a heat dissipation mechanism (4); Heat dissipation mechanism (4): It includes a flow guide shell (41), a low-voltage energy meter mounting slot (42), an air outlet pipe (43), and an air hole (44). The flow guide shell (41) is located on the rear inner wall of the low-voltage energy metering box (1). The front surface of the flow guide shell (41) is provided with a low-voltage energy meter mounting slot (42). The mounting plate (2) is located inside the low-voltage energy meter mounting slot (42). The front surface of the flow guide shell (41) is provided with an air outlet pipe (43). The two horizontally adjacent air outlet pipes (43) are provided with air holes (44) on their inner sides and the two vertically adjacent air holes (44) are provided with air holes (44) on their inner sides.

2. The modular low-voltage power metering box according to claim 1, characterized in that: The heat dissipation mechanism (4) also includes an air inlet pipe (47), which is located at the air inlet on the left side of the low-voltage power metering box (1). An electric fan (5) is provided at the left end of the air inlet pipe (47), and the right end of the air inlet pipe (47) is connected to the guide shell (41).

3. A modular low-voltage power metering box according to claim 2, characterized in that: The heat dissipation mechanism (4) also includes a guide plate (45), which is respectively disposed between the front and rear inner walls of the air inlet pipe (47), and the two guide plates (45) are symmetrically distributed vertically.

4. A modular low-voltage power metering box according to claim 1, characterized in that: The heat dissipation mechanism (4) also includes a guide plate (46), which is respectively disposed on the rear inner wall of the guide shell (41), and there is a gap between the horizontal plate of the guide plate (46) and the front inner wall of the guide shell (41).

5. A modular low-voltage power metering box according to claim 1, characterized in that: All the air holes (44) are oblique holes, and the flow guide shell (41) gradually tilts from back to front toward the adjacent low-voltage electricity meter mounting slot (42).

6. A modular low-voltage power metering box according to claim 2, characterized in that: The air inlet pipe (47) is provided with a dustproof net one (6) at the left end of the interior, and a dustproof net two (7) is provided on the right side of the low-voltage power metering box (1). The dustproof net two (7) is installed in conjunction with the air outlet on the right side of the low-voltage power metering box (1).

7. A modular low-voltage power metering box according to claim 1, characterized in that: The low-voltage energy meter mounting slots (42) are all connected to the interior of the guide shell (41). The inner sidewalls of the low-voltage energy meter mounting slots (42) are provided with connecting support plates (8). The mounting plates (2) are respectively set between the front surfaces of the four connecting support plates (8) in the same low-voltage energy meter mounting slot (42). The mounting plates (2) are all aluminum alloy heat-conducting plates.

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