Single-phase multi-metering box and method of use

Abstract

This invention relates to the field of metering box technology, specifically a single-phase multi-position metering box and its usage method. The metering box includes a main body, an electrical wire protection assembly, a wire guide plate assembly, and an internal ventilation mechanism disposed inside the main body. The main body is divided into a meter compartment and a switch compartment by a partition. The electrical wire protection assembly is installed inside the switch compartment, and the wire guide plate assembly is installed on the partition. The internal ventilation mechanism includes an air intake cabinet and an exhaust cabinet mounted on the outer wall of the main body. This application utilizes the electrical wire protection assembly and the wire guide plate assembly to rationally separate the electrical wires, preventing tightly bundled wires from affecting ventilation and heat dissipation within the box. The wire guide plate assembly also guides the wires, improving their protection. The dustproof assembly inside the air intake cabinet vibrates and dislodges dust from the dustproof screen, reducing the frequency of dustproof screen cleaning and improving ventilation and heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of metering box technology, specifically to a single-phase multi-position metering box and its usage method. Background Technology

[0002] In power systems, a more accurate term for a single-phase multi-meter metering cabinet is a single-phase multi-meter energy metering box (or metering cabinet). It is used to centrally install multiple single-phase energy meters, enabling centralized metering and management of energy consumption for multiple users in residential buildings, apartment buildings, and similar settings. Indoor installation (e.g., in hallways): generally requires an IP31 rating (resistant to solid objects with a diameter >2.5mm, and vertical dripping water). Outdoor installation: requires higher standards, typically IP54 (dustproof, splashproof) or higher, and in coastal or humid areas, even IP65 (dustproof, water-sprayproof). Installation methods: mainly wall-mounted (mainstream) and recessed (pre-embedded in the wall), the choice depending on the building structure.

[0003] For metering cabinets used in standard residential building corridors, conventional non-metallic or metal enclosures are generally selected, with an IP31 protection rating or higher, and price and ease of installation are the main considerations. However, compared to metering cabinets installed outdoors, the dustproofing and heat dissipation issues of single-phase multi-meter cabinets used in corridors directly affect the accuracy of electricity meter readings and the lifespan of internal components.

[0004] To address this issue, existing metering cabinets used in stairwells are generally wall-mounted, which facilitates installation and maintenance. However, these cabinets have the following drawbacks: because they are located inside the stairwell, air circulation is poor, which affects heat dissipation efficiency. In addition, the wiring inside traditional metering cabinets is dense and complex, and most of the wires are directly bundled with cable ties, which makes the cables dense and hinders heat dissipation. Long-term high temperatures accelerate the aging of the insulation layer, which may cause open flames. Furthermore, they are prone to errors during maintenance, significantly increasing maintenance time and labor costs.

[0005] In addition, dust prevention is also a key protection point for metering cabinets in corridors. Traditional dust prevention usually involves using dust screens to cover the air inlets to prevent dust from entering. However, conventional dust screens are usually fixed in place, and dust can easily clog the mesh over time, affecting the air intake and thus the heat dissipation. To solve this problem, the existing method is to use electric brushes for regular cleaning. However, this method not only requires additional electricity and generates heat, but also has a relatively complex structure that affects air circulation.

[0006] In addition, the interior and bottom of wall-mounted metering boxes are prone to moisture accumulation due to their close proximity to the wall and poor air circulation, which can affect the lifespan of the metering box. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a single-phase multi-position metering box and its usage method. It features reasonable distribution of wires, improved heat dissipation, enhanced dust prevention, automatic cleaning of the dust filter, and dehumidification of poorly ventilated areas such as the bottom of the back of the metering box, thus solving the problems mentioned in the background technology.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a single-phase multi-position metering box, comprising a metering box body, an electrical wire protection assembly, a wire through-plate assembly, and an internal ventilation mechanism disposed inside the metering box body. The metering box body is provided with a partition, which divides the metering box body into a meter compartment and a switch compartment. The switch compartment is provided with a main control switch, and the meter compartment is provided with an energy meter and a fixed meter base bracket. The energy meter is mounted on the fixed meter base bracket. A ventilation groove is provided at the bottom of the partition, and the wire through-plate assembly is mounted on the partition. A fixed bracket is mounted on the back of the metering box body.

[0009] The wire protection assembly is installed inside the switch compartment and includes a wire bracket, elastic clips, elastic dust covers, and heat dissipation resin.

[0010] The wire through-plate assembly is provided in two sets, and the wire through-plate assembly includes a rotating seat, a second heat sink and a wire through sleeve;

[0011] The internal ventilation system includes an air intake cabinet and an exhaust cabinet installed on the outer wall of the metering box. An air intake fan is installed on the air intake cabinet, a flow fan is installed on the partition, and an exhaust fan is installed inside the switch chamber.

[0012] The air intake cabinet is equipped with a dustproof component, which includes a rotating dustproof bracket, a dustproof net, a bottom fixing plate, a rotating sealing plate, and a dustproof cover.

[0013] The outer wall of the exhaust cabinet is connected to a dehumidification assembly, which includes a rear exhaust pipe and a bottom exhaust pipe.

[0014] Preferably, the rotating seat is rotatably connected to the partition, and the rotating part is sealed. The wire sleeve passes through the rotating seat, and multiple wire sleeves are provided on the rotating seat. The second heat sink is installed on the outer wall of the rotating seat.

[0015] Preferably, the wire bracket is set on one side of the wire through plate assembly and is set at the same height as the wire through plate assembly. The wire bracket has several slots inside. Elastic dust covers are installed on both sides of the wire bracket and correspond one-to-one with the slots. Heat dissipation resin is fixed inside the slots. Elastic blocks are set on both sides of the inner wall of the slots. First heat dissipation fins are provided on the outer wall and bottom wall of the wire bracket. One end of the first heat dissipation fin is connected to the heat dissipation resin. A rotating cover plate is rotatably connected to the top of the wire bracket.

[0016] Preferably, an air inlet slot is provided on the outer wall of the meter compartment, an air inlet cabinet is installed on one side of the air inlet slot, an air inlet fan is installed inside the air inlet slot, a flow fan is installed on one side of the electricity meter, and the flow fan is located at the top of the wire through-plate assembly. An exhaust slot is provided on the outer wall of the switch compartment, an exhaust cabinet is installed on the outside of the exhaust slot, and two sets of exhaust fans are provided and symmetrically arranged on the inner bottom of the switch compartment.

[0017] Preferably, the air intake cabinet is equipped with a protective frame on the outside, a rotating dustproof bracket is set inside the protective frame, and the top of the rotating dustproof bracket is rotatably connected to the inner top wall of the air intake cabinet. A dustproof net is set on the rotating dustproof bracket. An inclined baffle is set on the inner wall of the air intake cabinet. An arc-shaped bottom groove is opened at the bottom of the inner side wall of the air intake cabinet. A bottom fixing plate is installed at the bottom of the rotating dustproof bracket. A sliding ball is installed on the outer side wall of the bottom fixing plate. The sliding ball slides inside the bottom groove. A rotating sealing plate is rotatably connected to the bottom fixing plate. A fixing baffle is installed at the bottom of the outer wall of the rotating sealing plate. A dust cover is set on one side of the rotating sealing plate. An elastic top cone is installed on the protective frame of the air intake cabinet. A dust collection trough is set at the bottom edge of the air intake cabinet.

[0018] Preferably, the rear exhaust pipe is fixedly installed on the back of the metering box body, the end of the rear exhaust pipe is connected to the exhaust cabinet, multiple vent pipes are installed on the rear exhaust pipe, and a first nozzle is provided on the vent pipe. The bottom exhaust pipe is installed at the bottom of the metering box body, and several second nozzles are provided on the bottom exhaust pipe. A foam pad is provided on the back of the metering box body.

[0019] Preferably, the meter room is equipped with a meter box door on the outside, the switch room is equipped with a switch box door on the outside, a transparent cover is rotatably installed on the meter box door, the transparent cover is located on one side of the energy meter, a circuit breaker is installed inside the meter room, the circuit breaker is connected to the energy meter by wires, a protective box is installed outside the circuit breaker, and a protective cover is rotatably installed on the meter box door, the protective cover is located on one side of the circuit breaker.

[0020] Preferably, a main control switch is installed inside the switch compartment. The main control switch is connected to the electricity meter via a wire. The main control switch is located above the wire protection component. An inlet and outlet sealing ring is installed at the bottom of the metering box body. An annular groove is provided on the inlet and outlet sealing ring. The inlet and outlet sealing ring is snapped into the bottom of the metering box body through the annular groove. Two sets of symmetrically distributed dustproof pads are installed inside the insertion hole of the inlet and outlet sealing ring.

[0021] The method for using a single-phase multi-position metering box is as follows:

[0022] S1: Install the main body of the metering box in the electrical control room of the corridor, and suspend the main body of the metering box on the wall of the electrical control room through a fixed bracket;

[0023] S2: The electricity consumption in the house is measured by the electricity meter, and the main control switch and circuit breaker can turn the power on and off for the entire floor or a single user.

[0024] S3: Working heat dissipation: The air intake cabinet draws in external air and filters it through the dustproof components. Then, the external air enters the metering box body through the flow fan and the exhaust fan, and is then introduced into the exhaust cabinet for exhaust. When the air flows inside the metering box body, it absorbs the heat generated by the electrical components.

[0025] S4: Dustproof treatment: When air enters the air intake cabinet, it is filtered through the internal dustproof screen. When the dustproof screen is clogged, the dust is removed by rotating and resetting the dustproof bracket.

[0026] Compared with the prior art, the present invention provides a single-phase multi-position metering box and its usage method, which has the following beneficial effects:

[0027] 1. The single-phase multi-position metering box and its usage method, through the setting of wire protection components and wire through-plate components, reasonably separate the wires to prevent the wires from being tightly bundled and affecting the ventilation and heat dissipation effect inside the box. Furthermore, the use of heat dissipation resin, first heat sink and second heat sink can further improve the heat dissipation effect of the wires. In addition, the wire through-plate components can also guide the wires to prevent the wires from being worn against the edge of the plate when passing through the plate and to avoid the wires bending at large angles, thereby improving the protection of the wires.

[0028] 2. The single-phase multi-position metering box and its usage method utilize the dustproof components inside the air intake cabinet. When the dustproof screen is blocked, the air intake fan creates negative pressure inside the air intake cabinet, which in turn drives the rotating dustproof bracket to rotate. The rotating sealing plate at the bottom rotates under the influence of gravity, and external air is replenished from the dustproof cover, thereby reducing the negative pressure and resetting the dustproof screen. During the resetting process, the bottom fixing plate impacts the elastic top cone, vibrating the dust on the dustproof screen and causing it to fall off, reducing the cleaning frequency of the dustproof screen and improving the ventilation and heat dissipation effect.

[0029] 3. The single-phase multi-position metering box and its usage method, through the setting of the dehumidification component, can guide the heat dissipation air to the back and bottom of the metering box body through the exhaust pipe at the rear and bottom, thereby promoting the circulation of the surrounding air and achieving a good ventilation and dehumidification effect. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the rear structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the meter room and switch room of the present invention;

[0034] Figure 5 This is a schematic diagram of the wire protection assembly of the present invention;

[0035] Figure 6 This is a schematic diagram of the wire through-plate assembly of the present invention;

[0036] Figure 7 This is a cross-sectional view of the air intake cabinet of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the inlet and outlet sealing ring of the present invention.

[0038] In the diagram: 1. Meter box body; 2. Switch box door; 3. Meter box door; 4. Electricity meter; 5. Fixed meter base bracket; 6. Main control switch; 7. Protective box; 8. Circuit breaker; 9. Transparent cover; 10. Protective cover; 11. Fixed bracket; 12. Partition; 1201. Ventilation slot; 13. Wire bracket; 14. Slot; 15. Elastic locking block; 16. Elastic dust cover; 17. Heat dissipation resin; 18. First heat sink; 19. Rotating cover; 20. Rotating seat; 21. Second 22. Heat sink; 23. Cable conduit; 24. Air intake cabinet; 25. Air intake fan; 26. Circulation fan; 27. Exhaust fan; 28. Exhaust cabinet; 29. ​​Rotating dustproof bracket; 30. Dustproof net; 31. Baffle; 32. Bottom groove; 33. Sliding ball bearing; 34. Bottom fixing plate; 35. Dust cover; 36. Rear exhaust pipe; 47. Vent pipe; 48. First nozzle; 49. Inlet / outlet sealing ring; 40. Annular groove; 41. Dustproof gasket; 42. Foam pad. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1:

[0041] For embodiments of the present invention, please refer to [link / reference]. Figures 1 to 6A single-phase multi-meter metering box includes a metering box body 1, an electrical wire protection assembly, a wire through-plate assembly, and an internal ventilation mechanism installed inside the metering box body 1. The metering box body 1 is provided with a partition 12, which divides the metering box body 1 into a meter compartment and a switch compartment. The switch compartment is provided with a main control switch 6, and the meter compartment is provided with an energy meter 4 and a fixed meter bracket 5. The energy meter 4 is installed on the fixed meter bracket 5. A ventilation groove 1201 is provided at the bottom of the partition 12. The wire through-plate assembly is installed on the partition 12. A fixed bracket 11 is installed on the back of the metering box body 1.

[0042] The wire protection assembly is installed inside the switch compartment. The wire protection assembly includes a wire bracket 13, an elastic clip 15, an elastic dust cover 16, and a heat dissipation resin 17.

[0043] The wire through-plate assembly is provided in two sets. The wire through-plate assembly includes a rotating seat 20, a second heat sink 21, and a wire through sleeve 22.

[0044] The internal ventilation system includes an air intake cabinet 23 and an exhaust cabinet 27 installed on the outer wall of the metering box body 1. An air intake fan 24 is installed on the air intake cabinet 23, a flow fan 25 is installed on the partition 12, and an exhaust fan 26 is installed inside the switch chamber.

[0045] The air intake 23 is equipped with a dustproof component, which includes a rotating dustproof bracket 28, a dustproof net 29, a bottom fixing plate 33, a rotating sealing plate, and a dustproof cover 36.

[0046] A dehumidification assembly is connected to the outer wall of the exhaust cabinet 27. The dehumidification assembly includes a rear exhaust pipe 39 and a bottom exhaust pipe.

[0047] The meter room is equipped with a meter box door 3 on the outside, and the switch room is equipped with a switch box door 2 on the outside. A transparent cover 9 is rotatably installed on the meter box door 3, and the transparent cover 9 is located on one side of the energy meter 4. A circuit breaker 8 is installed inside the meter room, and the circuit breaker 8 is connected to the energy meter 4 by wires. A protective box 7 is installed outside the circuit breaker 8. A protective cover 10 is rotatably installed on the meter box door 3, and the protective cover 10 is located on one side of the circuit breaker 8. A main control switch 6 is installed inside the switch room, and the main control switch 6 is connected to the energy meter 4 by wires.

[0048] The method of using this single-phase multi-position metering box includes the following steps:

[0049] S1: Install the metering box body 1 in the electrical control room of the corridor, and suspend the metering box body 1 on the wall of the electrical control room through the fixed bracket 11;

[0050] S2: The electricity consumption in the house is measured by the electricity meter 4, and the main control switch 6 and circuit breaker 8 can turn the power on and off for the entire floor or a single user.

[0051] S3: Working heat dissipation: The intake cabinet 23 draws in external air and filters it through the dustproof components. Then, the external air enters the metering box body 1 through the flow fan 25 and the exhaust fan 26, and is then introduced into the exhaust cabinet 27 for exhaust. When the air flows inside the metering box body 1, it absorbs the heat generated by the electrical components.

[0052] S4: Dust prevention treatment: When air enters the air intake cabinet 23, it is filtered through the internal dust filter 29. When the dust filter 29 is blocked, the dust is removed by rotating and resetting the dust filter bracket 28.

[0053] The rotating seat 20 is rotatably connected to the partition plate 12, and the rotating part is sealed. The wire sleeve 22 passes through the rotating seat 20, and multiple wire sleeves 22 are provided on the rotating seat 20. The second heat sink 21 is installed on the outer wall of the rotating seat 20.

[0054] The wire bracket 13 is set on one side of the wire through plate assembly and is set at the same height as the wire through plate assembly. The wire bracket 13 has several slots 14 inside. The elastic dust cover 16 is installed on both sides of the wire bracket 13 and corresponds to the slot 14 one by one. The heat dissipation resin 17 is fixed inside the slot 14. The elastic block 15 is set on both sides of the inner wall of the slot 14. The outer wall and bottom wall of the wire bracket 13 are provided with first heat dissipation fins 18. One end of the first heat dissipation fin 18 is connected to the heat dissipation resin 17. The top of the wire bracket 13 is rotatably connected to a rotating cover plate 19.

[0055] Specifically: The single-phase multi-meter metering box designed in this application is used inside the power distribution room in the corridor. Since the outer door of the power distribution room is closed for a long time, the heat dissipation effect of the single-phase multi-meter metering box is poor. Therefore, heat dissipation of the single-phase multi-meter metering box is the key protection in the application of the single-phase multi-meter metering box.

[0056] The single-phase multi-meter meter box in this application adopts a hanging installation. The meter box body 1 is hung on the wall by the fixed bracket 11 on the back of the meter box body 1. The wiring of the energy meter 4, main control switch 6 and circuit breaker 8 inside the single-phase multi-meter meter box is a conventional wiring method. When wiring the wires, the wires need to be put into the wire protection component and the wires are passed through the partition 12 through the wire through plate component.

[0057] The wire bracket 13 is fixedly installed inside the switch chamber. When the wire is installed inside the wire bracket 13, it needs to be passed through the elastic dust cover 16 so that the wire is in the slot 14. The wire is limited by the elastic block 15. The heat dissipation resin 17 and the first heat sink 18 can greatly improve the heat dissipation capacity of the wire. The distribution of each wire is also more obvious, which is convenient for maintenance. In addition, the wires are not scattered, which also improves the air flow in the switch chamber. Furthermore, the rotating cover 19 can cover the wires inside the wire bracket 13 and prevent dust from entering, thus improving the protection of the wires.

[0058] In addition, to prevent wear and tear between the wires and the edge of the partition 12 when the wires pass through the partition 12 into the meter room, and to prevent poor heat dissipation due to dense wire distribution, this application provides multiple sets of rotating seats 20 on the partition 12 and installs wire sleeves 22 on the rotating seats 20. The wires can pass through the wire sleeves 22, and the rotatable design of the wire sleeves 22 can also prevent damage to the external insulation layer caused by large bending angles of the wires. In addition, the second heat sink 21 on the outside of the rotating seat 20 can improve the heat dissipation effect on the wires. The wire passing through the partition assembly can also ensure that the wires are distributed reasonably and will not be messy, further improving maintenance efficiency.

[0059] Example 2:

[0060] As an embodiment of the present invention, please refer to Figures 7 to 8 Based on Embodiment 1, this application further includes an air inlet slot on the outer wall of the meter compartment, an air inlet cabinet 23 installed on one side of the air inlet slot, an air inlet fan 24 installed inside the air inlet slot, a flow fan 25 installed on one side of the energy meter 4, the flow fan 25 being located at the top of the wire through-plate assembly, an exhaust slot on the outer wall of the switch compartment, an exhaust cabinet 27 installed outside the exhaust slot, and two sets of exhaust fans 26 symmetrically arranged on the inner bottom of the switch compartment.

[0061] The air intake cabinet 23 is equipped with a protective frame on its exterior. A rotating dustproof bracket 28 is located inside the protective frame, and the top of the rotating dustproof bracket 28 is rotatably connected to the inner top wall of the air intake cabinet 23. A dustproof net 29 is installed on the rotating dustproof bracket 28. An inclined baffle 30 is installed on the inner wall of the air intake cabinet 23. An arc-shaped bottom groove 31 is opened at the bottom of the inner side wall of the air intake cabinet 23. A bottom fixing plate 33 is installed at the bottom of the rotating dustproof bracket 28. A sliding ball 32 is installed on the outer side wall of the bottom fixing plate 33. The sliding ball 32 slides inside the bottom groove 31. A rotating sealing plate is rotatably connected to the bottom fixing plate 33. A fixed baffle is installed at the bottom of the outer wall of the rotating sealing plate. A dust cover 36 is located on one side of the rotating sealing plate. An elastic top cone is installed on the protective frame of the air intake cabinet 23. A dust collection trough is provided at the bottom edge of the air intake cabinet 23.

[0062] Specifically, to ensure the dustproof effect inside the metering box body 1, this application has a rotatable dustproof net 29 inside the air intake cabinet 23, which can filter external dust. When external dust adheres to the dustproof net 29 and blocks the mesh of the dustproof net 29, the air intake fan 24 continuously draws air from the air intake cabinet 23, which generates negative pressure inside the air intake cabinet 23, causing the air pressure inside the air intake cabinet 23 to be lower than the air pressure outside the metering box body 1. At this time, under the influence of air pressure, the rotating dustproof bracket 28 rotates. Since the rotating sealing plate is rotatably connected to the bottom fixing plate 33, the bottom fixing plate 33 rotates under the influence of gravity, allowing external air to enter the air intake cabinet 23 through the rotating sealing plate and the dustproof cover 36, thereby reducing the negative pressure effect.

[0063] After the negative pressure effect decreases, the rotating dustproof bracket 28 rotates and resets under the influence of gravity. When the rotating dustproof bracket 28 resets, it hits the elastic top cone, which vibrates the rotating dustproof bracket 28 and the dustproof net 29. This causes some of the dust adhering to the dustproof net 29 to be shaken off, preventing the dustproof net 29 from becoming completely blocked. The dust that is shaken off is discharged from the dust collection chute into the air intake cabinet 23. This achieves the effect of automatically cleaning the dust that is blocking the dustproof net 29, reducing the frequency of manual cleaning and improving the heat dissipation effect inside the metering box body 1.

[0064] Example 3:

[0065] As an embodiment of the present invention, based on embodiment 1, this application further includes a rear exhaust pipe 39 fixedly installed on the back of the metering box body 1, the end of the rear exhaust pipe 39 being connected to the exhaust cabinet 27, a plurality of vent pipes 40 being installed on the rear exhaust pipe 39, a first nozzle 41 being provided on the vent pipe 40, a bottom exhaust pipe being installed at the bottom of the metering box body 1, a plurality of second nozzles being provided on the bottom exhaust pipe, and a foam pad 46 being provided on the back of the metering box body 1.

[0066] The main control switch 6 is located above the wire protection assembly. The bottom of the metering box body 1 is provided with an inlet / outlet sealing ring 44. An annular groove 4401 is provided on the inlet / outlet sealing ring 44. The inlet / outlet sealing ring 44 is snapped into the bottom of the metering box body 1 through the annular groove 4401. Two sets of symmetrically distributed dustproof pads 45 are provided inside the insertion hole of the inlet / outlet sealing ring 44.

[0067] Specifically, since it is installed in the power distribution room and is suspended, the airflow at the bottom and back of the metering box body 1 is poor, which can easily cause local heat accumulation and humidity, affecting the use of the metering box body 1. Therefore, this application installs a rear exhaust pipe 39 on the back of the metering box body 1 and a bottom exhaust pipe on the bottom of the metering box body 1. The rear exhaust pipe 39 is connected to the bottom exhaust pipe and the exhaust cabinet 27. The airflow generated by the exhaust can ventilate and dehumidify the bottom and back of the metering box body 1, thereby improving its dehumidification effect.

[0068] In addition, the installation of sealing rings for the inlet and outlet lines can effectively ensure the dustproof effect of the inlet and outlet lines, further improving the dustproof capability.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0070] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-phase multi-position metering box, comprising a metering box body (1), an electrical wire protection assembly, a wire through-plate assembly, and an internal ventilation mechanism disposed inside the metering box body (1), characterized in that: The metering box body (1) is equipped with a partition (12) inside, which divides the metering box body (1) into a meter compartment and a switch compartment. The switch compartment is equipped with a main control switch (6), and the meter compartment is equipped with an energy meter (4). A ventilation slot (1201) is provided at the bottom of the partition (12). The wire through-plate assembly is installed on the partition (12). A fixed bracket (11) is installed on the back of the metering box body (1). The wire protection assembly is installed inside the switch compartment. The wire protection assembly includes a wire bracket (13), a flexible clip (15), a flexible dust cover (16), and a heat dissipation resin (17). The wire through-plate assembly is provided in two sets. The wire through-plate assembly includes a rotating seat (20), a second heat sink (21), and a wire through sleeve (22). The internal ventilation system includes an air intake cabinet (23) and an exhaust cabinet (27) installed on the outer wall of the metering box body (1). An air intake fan (24) is installed on the air intake cabinet (23), a flow fan (25) is installed on the partition (12), and an exhaust fan (26) is installed inside the switch room. The air intake cabinet (23) is equipped with a dustproof component, which includes a rotating dustproof bracket (28), a dustproof net (29), a bottom fixing plate (33), a rotating sealing plate, and a dustproof cover (36). The outer wall of the exhaust cabinet (27) is connected to a dehumidification assembly, which includes a rear exhaust pipe (39) and a bottom exhaust pipe.

2. The single-phase multi-position metering box according to claim 1, characterized in that: The rotating seat (20) is rotatably connected to the partition plate (12), and the rotating part is sealed. The wire sleeve (22) passes through the rotating seat (20), and multiple wire sleeves (22) are provided on the rotating seat (20). The second heat sink (21) is installed on the outer wall of the rotating seat (20).

3. The single-phase multi-position metering box according to claim 1, characterized in that: The wire bracket (13) is set on one side of the wire through plate assembly and is set at the same height as the wire through plate assembly. The wire bracket (13) has several slots (14) inside. The elastic dust cover (16) is installed on both sides of the wire bracket (13) and corresponds to the slot (14) one by one. The heat dissipation resin (17) is fixed inside the slot (14). The elastic block (15) is set on both sides of the inner wall of the slot (14). The outer wall and bottom wall of the wire bracket (13) are provided with a first heat sink (18). One end of the first heat sink (18) is connected to the heat dissipation resin (17). The top of the wire bracket (13) is rotatably connected to a rotating cover plate (19).

4. The single-phase multi-position metering box according to claim 1, characterized in that: An air inlet slot is provided on the outer wall of the meter room. An air inlet cabinet (23) is installed on one side of the air inlet slot. An air inlet fan (24) is installed inside the air inlet slot. A flow fan (25) is installed on one side of the energy meter (4). The flow fan (25) is located at the top of the wire through-plate assembly. An exhaust slot is provided on the outer wall of the switch room. An exhaust cabinet (27) is installed on the outside of the exhaust slot. Two sets of exhaust fans (26) are provided and symmetrically arranged on the inner bottom of the switch room.

5. The single-phase multi-position metering box according to claim 1, characterized in that: The air intake cabinet (23) is equipped with a protective frame on its exterior. A rotating dustproof bracket (28) is located inside the protective frame, and the top of the rotating dustproof bracket (28) is rotatably connected to the inner top wall of the air intake cabinet (23). A dustproof net (29) is installed on the rotating dustproof bracket (28). An inclined baffle (30) is installed on the inner wall of the air intake cabinet (23). An arc-shaped bottom groove (31) is opened at the bottom of the inner side wall of the air intake cabinet (23). A bottom fixing plate (33) is installed on the rotating dustproof bracket (28). At the bottom of the moving dustproof bracket (28), a sliding ball (32) is installed on the outer wall of the bottom fixing plate (33). The sliding ball (32) slides inside the bottom groove (31). The rotating sealing plate is rotatably connected to the bottom fixing plate (33). A fixed baffle is installed at the bottom of the outer wall of the rotating sealing plate. The dust cover (36) is set on one side of the rotating sealing plate. An elastic top cone is installed on the protective frame of the air intake cabinet (23). A dust collection trough is set at the bottom edge of the air intake cabinet (23).

6. The single-phase multi-position metering box according to claim 1, characterized in that: The rear exhaust pipe (39) is fixedly installed on the back of the metering box body (1). The end of the rear exhaust pipe (39) is connected to the exhaust cabinet (27). Multiple ventilation pipes (40) are installed on the rear exhaust pipe (39). A first nozzle (41) is provided on the ventilation pipe (40). The bottom exhaust pipe is installed at the bottom of the metering box body (1). Several second nozzles are provided on the bottom exhaust pipe. A foam pad (46) is provided on the back of the metering box body (1).

7. The single-phase multi-position metering box according to claim 1, characterized in that: The meter room is equipped with a meter box door (3) on the outside, and the switch room is equipped with a switch box door (2) on the outside. A transparent cover (9) is rotatably installed on the meter box door (3). The transparent cover (9) is located on one side of the energy meter (4). A circuit breaker (8) is installed inside the meter room. The circuit breaker (8) is connected to the energy meter (4) by wires. A protective box (7) is installed outside the circuit breaker (8). A protective cover (10) is rotatably installed on the meter box door (3). The protective cover (10) is located on one side of the circuit breaker (8).

8. The single-phase multi-position metering box according to claim 1, characterized in that: The switch room is equipped with a main control switch (6), which is connected to the electricity meter (4) via a wire. The main control switch (6) is located above the wire protection assembly. The bottom of the metering box body (1) is equipped with an inlet and outlet sealing ring (44). An annular groove (4401) is provided on the inlet and outlet sealing ring (44). The inlet and outlet sealing ring (44) is snapped into the bottom of the metering box body (1) through the annular groove (4401). Two sets of symmetrically distributed dustproof pads (45) are provided inside the insertion hole of the inlet and outlet sealing ring (44).

9. The method of using a single-phase multi-position metering box, characterized in that: Using the single-phase multi-position metering box of claim 7, the method steps are as follows: S1: Install the metering box body (1) in the electrical control room of the corridor, and hang the metering box body (1) on the wall of the electrical control room by means of the fixed bracket (11); S2: The electricity consumption in the house is measured by the electricity meter (4), and the main control switch (6) and circuit breaker (8) can turn the power on and off for the entire floor or a single user. S3: Working heat dissipation: The intake cabinet (23) draws in external air and filters it through the dustproof component. Then, the external air enters the metering box body (1) through the flow fan (25) and the exhaust fan (26), and is then introduced into the exhaust cabinet (27) for exhaust. When the air flows inside the metering box body (1), it absorbs the heat generated by the electrical components. S4: Dustproof treatment: When air enters the air intake cabinet (23), it is filtered by the internal dustproof net (29). When the dustproof net (29) is blocked, the dust is removed by rotating and resetting the dustproof bracket (28).

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