Anti-countercurrent electric power metering box

Abstract

The utility model belongs to the technical field of electric power metering boxes, and particularly relates to an anti-backflow electric power metering box which comprises a box body, a middle vertical nose bridge, a middle transverse nose bridge and a circuit breaker, the middle vertical nose bridge is connected inside the box body, a middle vertical partition plate is connected to the middle vertical nose bridge, one end of the middle transverse nose bridge is connected to the box body, and the other end of the middle transverse nose bridge is connected to the middle vertical nose bridge. The middle transverse nose bridge is connected with a middle transverse partition plate; the interior of the box body is divided into a wire inlet chamber, a wire outlet chamber and an electric meter chamber, and a first access door, a second access door and a third access door are hinged to the box body; a circuit breaker mounting plate is connected to the interior of the wire inlet chamber, the circuit breaker is connected to the circuit breaker mounting plate, an anti-reflux detection module is further arranged in the wire inlet chamber, and a bidirectional electric meter is arranged in the electric meter chamber; compared with the prior art, the anti-backflow detection module is additionally arranged after the intelligent electric meter is arranged to prevent backflow, the current internal current state can be displayed through the screen on the operation table, meanwhile, a temperature detection measure and a rainproof measure are added, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power meter boxes, in particular to an anti-backflow electric power meter box. Background Art

[0002] The anti-backflow power meter box is a metering device specially designed to prevent current backflow. It adds an anti-backflow function module on the basis of the traditional power meter box. When backflow occurs, it can detect it in time and take corresponding measures to ensure the accuracy of power metering and the stable operation of the power supply system.

[0003] This meter box usually uses advanced sensors and intelligent control technology to accurately monitor the direction and size of the current. At the same time, it also has good protection performance and can resist the influence of the external environment.

[0004] In some distributed energy systems, photovoltaic power generation systems, etc., anti-backflow electricity meter boxes play a vital role and help ensure the safe and efficient operation of the power system.

[0005] Existing anti-backflow electricity meter boxes generally achieve backflow prevention by setting up CT modules or intelligent bidirectional meters, and are usually used outdoors. If the internal temperature is too high, safety accidents may easily occur. Therefore, it is necessary to invent a more reliable anti-backflow electricity meter box. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model develops an anti-backflow electricity metering box, which adds an anti-backflow detection module after the anti-backflow of the smart meter is set, and can display the current internal current state through the screen on the operating table. At the same time, temperature detection measures and rain protection measures are added to improve the safety of use.

[0007] The technical solution to the technical problem solved by the utility model is as follows: an anti-backflow electric power metering box comprises a box body, a neutral nose bridge, a middle horizontal nose bridge, and a circuit breaker, wherein the neutral nose bridge is connected to the inside of the box body, a neutral partition is connected to the neutral nose bridge, and an opening is provided on the neutral partition, one end of the middle horizontal nose bridge is connected to the box body, and the other end is connected to the neutral nose bridge, the middle horizontal nose bridge is connected to the middle horizontal partition, and the middle horizontal partition is provided with an opening; the inner part of the box body is divided into an incoming line chamber, an outgoing line chamber and an electric meter chamber, the box body is hinged with a first inspection door at the incoming line chamber, a second inspection door is hinged at the electric meter chamber, and a third inspection door is hinged at the outgoing line chamber; the inside of the incoming line chamber is connected to a circuit breaker mounting plate, the circuit breaker is connected to the circuit breaker mounting plate, an anti-backflow detection module is also provided in the incoming line chamber, a bidirectional electric meter is provided in the electric meter chamber, the bidirectional electric meter is mounted on the electric meter mounting plate, and the electric meter mounting plate is connected to the box body.

[0008] Preferably, a circuit breaker safety baffle is connected to one side of the incoming line room close to the first inspection door, one end of the circuit breaker safety baffle is connected to the box body, and the other end is connected to the neutral nose bridge, and the anti-backflow detection module is connected to the circuit breaker safety baffle.

[0009] Preferably, a meter safety baffle is connected to one side of the meter room close to the second inspection door, one end of the meter safety baffle is connected to the box body, and the other end is connected to the neutral nose bridge.

[0010] Preferably, a temperature sensor is provided inside the incoming line chamber.

[0011] Preferably, an operating table is installed in the outlet chamber, and the operating table is electrically connected to the anti-backflow detection module and the temperature sensor.

[0012] Preferably, the third inspection door is made of transparent material.

[0013] Preferably, waterproof grooves are arranged around the first inspection door, the second inspection door and the third inspection door on the box body.

[0014] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0015] 1. By setting up a control console and connecting the anti-backflow sensor and temperature sensor, on the one hand, the anti-backflow status of the smart meter can be detected to modify the output power of the inverter, and on the other hand, the internal temperature of the box can be detected. When the safety critical temperature is exceeded, the circuit breaker is controlled to disconnect, thereby improving the safety of use;

[0016] 2. By setting waterproof grooves around the first inspection door, the second inspection door and the third inspection door, the overall waterproofness can be improved to prevent rainwater from entering the box and causing safety accidents;

[0017] 3. By setting the circuit breaker safety baffle and the electric meter safety baffle, it can further play the role of waterproof and dustproof and protect the internal circuit of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 for Figure 1 Sectional view in the AA direction;

[0020] Figure 3 for Figure 2 A partial enlarged view of the middle A area;

[0021] Figure 4 for Figure 1 Cross-sectional view in the BB direction;

[0022] Figure 5 for Figure 4 A partial enlarged view of the middle A area;

[0023] Figure 6 It is a right side view of the utility model;

[0024] Figure 7 for Figure 6 Sectional view in the AA direction;

[0025] Figure 8 It is the overall structure diagram of the utility model.

[0026] Among them: 1. Box body; 101. Incoming line room; 102. Electric meter room; 103. Outgoing line room; 2. Neutral nose bridge; 21. Neutral partition; 3. Middle horizontal nose bridge; 31. Middle horizontal partition; 4. Circuit breaker; 41. Circuit breaker mounting plate; 42. Circuit breaker safety baffle; 43. First inspection door; 5. Bidirectional electric meter; 51. Electric meter mounting plate; 52. Electric meter safety baffle; 53. Second inspection door; 6. Operating table; 61. Third inspection door; 7. Anti-backflow detection module; 8. Temperature sensor; 9. Waterproof groove. DETAILED DESCRIPTION

[0027] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0028] Example 1

[0029] See also Figures 1 to 8 A backflow-proof electric power metering box comprises a box body 1, a neutral nose bridge 2, a middle transverse nose bridge 3, and a circuit breaker 4. The neutral nose bridge 2 is connected to the inside of the box body 1, and a neutral partition 21 is connected to the neutral nose bridge 2. The neutral partition 21 has an opening. One end of the middle transverse nose bridge 3 is connected to the box body 1, and the other end is connected to the neutral nose bridge 2. The middle transverse nose bridge 3 is connected to the middle transverse partition 31, and the middle transverse partition 31 has an opening. The inside of the box body 1 is divided into an incoming line chamber 101, an outgoing line chamber 103, and an electric meter chamber 102. The The box body 1 is hinged with a first inspection door 43 at the incoming line chamber 101, with a second inspection door 53 at the meter chamber 102, and with a third inspection door 61 at the outgoing line chamber 103; a circuit breaker mounting plate 41 is connected to the inside of the incoming line chamber 101, and the circuit breaker 4 is connected to the circuit breaker mounting plate 41. An anti-backflow detection module 7 is also provided in the incoming line chamber 101, and a bidirectional meter 5 is provided in the meter chamber 102. The bidirectional meter 5 is installed on the meter mounting plate 51, and the meter mounting plate 51 is connected to the box body 1.

[0030] A circuit breaker safety baffle 42 is connected to one side of the incoming line room 101 close to the first inspection door 43. One end of the circuit breaker safety baffle 42 is connected to the box body 1, and the other end is connected to the neutral nose bridge 2. The anti-backflow detection module 7 is connected to the circuit breaker safety baffle 42. The number of anti-backflow detection modules 7 can be increased according to the number of inverters. For better waterproofing, the anti-backflow detection module 7 can also be installed on the side of the circuit breaker safety baffle 42 close to the inside of the box body 1.

[0031] An electric meter safety baffle 52 is connected to one side of the electric meter chamber 102 close to the second inspection door 53 , and one end of the electric meter safety baffle 52 is connected to the box body 1 , and the other end is connected to the neutral nose bridge 2 .

[0032] A temperature sensor 8 is disposed inside the incoming line chamber 101 .

[0033] An operating console 6 is installed in the outlet chamber 103, and the operating console 6 is electrically connected to the anti-backflow detection module 7 and the temperature sensor 8. The data of the temperature sensor 8 will be transmitted to the operating console 6. When the internal temperature of the box body 1 reaches the safety critical temperature, the operating console 6 will control the circuit breaker 4 to disconnect.

[0034] The third inspection door 61 is made of transparent material, so that the data on the operating table 6 can be directly observed without opening the inspection door.

[0035] Waterproof grooves 9 are arranged around the first inspection door 43 , the second inspection door 53 and the third inspection door 61 on the box body 1 .

[0036] Principle and operation process

[0037] The utility model adopts an operating console 6 to control the internal components. When connecting the wires, firstly, the wires are connected through the incoming wire chamber 101, and the circuit breaker 4 is connected. After the output of the circuit breaker 4, the anti-backflow detection module 7 is connected, and then the wires are passed through the neutral partition 21 to the outgoing wire chamber 103 and connected to the bidirectional electric meter 5.

[0038] The internally arranged control console 6 can detect the anti-backflow status of the smart meter by connecting the anti-backflow sensor and the temperature sensor 8 to modify the output power of the inverter to achieve zero backflow. It can also detect the internal temperature of the box 1 and control the circuit breaker 4 to disconnect after exceeding the safety critical temperature, thereby improving the safety of use. A waterproof groove 9 is arranged around the first inspection door 43, the second inspection door 53 and the third inspection door 61. When it rains, rainwater that penetrates into the box 1 through the inspection door can flow out through the waterproof groove 9, thereby improving the overall waterproofness and preventing rainwater from entering the box 1 and causing safety accidents. The arrangement of the circuit breaker safety baffle 42 and the meter safety baffle 52 can further play a waterproof role and protect the internal circuit.

[0039] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. An anti-backflow power meter box, characterized in that: The invention comprises a box body (1), a neutral nose bridge (2), a middle transverse nose bridge (3), and a circuit breaker (4); the neutral nose bridge (2) is connected to the inside of the box body (1); the neutral nose bridge (2) is connected to a neutral partition (21), and the neutral partition (21) has an opening; one end of the middle transverse nose bridge (3) is connected to the box body (1), and the other end is connected to the neutral nose bridge (2); the middle transverse nose bridge (3) is connected to a middle transverse partition (31), and the middle transverse partition (31) has an opening; the inside of the box body (1) is divided into an incoming line chamber (101), an outgoing line chamber (103), and an electric meter chamber (102); the box body (1) has an incoming line chamber (101), an outgoing line chamber (103), and an electric meter chamber (102); A first inspection door (43) is hingedly connected to the line chamber (101), a second inspection door (53) is hingedly connected to the meter chamber (102), and a third inspection door (61) is hingedly connected to the outlet chamber (103); a circuit breaker mounting plate (41) is connected to the inside of the incoming line chamber (101), the circuit breaker (4) is connected to the circuit breaker mounting plate (41), an anti-backflow detection module (7) is also provided in the incoming line chamber (101), a bidirectional meter (5) is provided in the meter chamber (102), the bidirectional meter (5) is mounted on the meter mounting plate (51), and the meter mounting plate (51) is connected to the box (1).

2. The anti-backflow electricity meter box according to claim 1, characterized in that: A circuit breaker safety baffle (42) is connected to one side of the incoming line chamber (101) close to the first inspection door (43); one end of the circuit breaker safety baffle (42) is connected to the box body (1), and the other end is connected to the neutral nose bridge (2); and the anti-backflow detection module (7) is connected to the circuit breaker safety baffle (42).

3. The anti-backflow electricity meter box according to claim 1, characterized in that: An electric meter safety baffle (52) is connected to one side of the electric meter chamber (102) close to the second inspection door (53); one end of the electric meter safety baffle (52) is connected to the box body (1), and the other end is connected to the neutral nose bridge (2).

4. The anti-backflow electric power meter box according to claim 1, characterized in that: A temperature sensor (8) is arranged inside the incoming line chamber (101).

5. The anti-backflow electric power meter box according to claim 4, characterized in that: An operating table (6) is installed in the outlet chamber (103), and the operating table (6) is electrically connected to the anti-backflow detection module (7) and the temperature sensor (8).

6. The anti-backflow electric power meter box according to claim 1, characterized in that: The third inspection door (61) is made of transparent material.

7. The anti-backflow electricity meter box according to claim 1, characterized in that: Waterproof grooves (9) are arranged around the first inspection door (43), the second inspection door (53) and the third inspection door (61) on the box body (1).

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