Durable electric energy meter

Abstract

The utility model relates to a durable electric energy meter, and relates to the technical field of durable electric energy meters, the durable electric energy meter comprises a box body fixed on a wall surface and an electric meter body detachably installed on the box body, the bottom side of the electric meter body is connected with a plurality of electric meter connecting lines, and the plurality of electric meter connecting lines are provided with electric meter wiring terminals. A power supply connecting wire is clamped and fixed on the box body, the power supply connecting wire is communicated with a power supply, a power supply wiring terminal is arranged on the power supply connecting wire, and a connecting assembly for connecting the power supply connecting wire and an electric meter connecting wire is also fixedly embedded in the box body. The service life of the electric energy meter is prolonged, ablation of the electric energy meter conductive plate is reduced, and the user experience during replacement of the electric energy meter is improved.

Description

Technical Field

[0001] This application relates to the technical field of electricity meters, and in particular to a durable electricity meter. Background Technology

[0002] An electricity meter is an instrument used to measure electrical energy consumption. It is mainly used to measure the active power of a circuit and is widely used in homes, industries, and commercial settings. It is an important component of the power system.

[0003] Common electricity meters have multiple connection ports, each containing a conductive plate. Connection bolts are threaded onto the connection ports. The wiring method differs depending on whether the electricity meter is single-phase or three-phase. Single-phase meters typically have four connection ports. When wiring, insert the live wire input, neutral wire input, live wire output, and neutral wire output into the four connection ports respectively, and rotate the connection bolts to ensure the corresponding wires are securely pressed against the contacts inside the connection ports.

[0004] Three-phase electricity meters typically have eight or more connection ports for connecting three-phase live wires and neutral wires as input and output. During the wiring process, technicians often remove the insulation layer from the wire ends and insert the multi-strand copper or aluminum core wire wrapped in the insulation layer into the connection holes. They then use connection bolts to press the wires against the conductive plate to achieve stable conductivity. However, since conductivity relies solely on the tight contact between the multi-strand copper / aluminum core wire and the conductive plate, poor contact can easily occur over time. Prolonged use can lead to wire oxidation and overheating, causing the meter's conductive plate to burn out, thus affecting the meter's lifespan. Furthermore, replacing the meter requires disconnecting the power to the user, impacting the user experience. Therefore, improvements are needed. Utility Model Content

[0005] In order to extend the service life of electricity meters, reduce the burning of the conductive plates of electricity meters, and improve the user experience when replacing electricity meters, this application provides a durable electricity meter.

[0006] The durable energy meter provided in this application adopts the following technical solution:

[0007] A durable electricity meter includes a box fixed to a wall and a meter body detachably installed on the box. Multiple meter connection lines are connected to the bottom side of the meter body, and each of the multiple meter connection lines is provided with a meter terminal. A power connection line is snapped and fixed on the box, and the power connection line is connected to a power supply. The power connection line is provided with a power terminal. A connecting component for connecting the power connection line and the meter connection line is also fixedly embedded in the box.

[0008] The connection assembly includes a connector embedded in the housing and located on the bottom side of the meter body, and a maintenance component on the connector. The connector is provided with multiple conductive plates, which are arranged sequentially at intervals. Each conductive plate corresponds to a meter connection line and a power supply connection line. One end of each conductive plate corresponds to a meter connection line, and the other end of each conductive plate corresponds to a power supply connection line.

[0009] By adopting the above technical solution, when it is necessary to connect the power connection line on the user side to the electricity meter, the electricity meter wiring terminals, power wiring terminals, and connectors are set up. By connecting the electricity meter wiring terminals to the conductive plate on the connector and the power wiring terminals to the conductive plate on the connector, the operation steps of removing the wire insulation layer during wiring are reduced. At the same time, the aging and burning problems caused by multi-strand copper / aluminum core wire wiring are reduced, thus improving the service life of the electricity meter.

[0010] Meanwhile, the connection sockets increase the operating space for technicians when wiring, thereby improving the efficiency and safety of their wiring operations.

[0011] Optionally, both the power supply terminal and the meter terminal are connector lugs. Each connector lug includes a sleeve that fits into the meter connection wire / power supply connection wire and a circular metal piece at one end of the sleeve. Both ends of the conductive piece have connector holes with the same diameter as the center of the metal piece. The connector is also threaded with a locking bolt, which passes through the metal piece and is threaded into the connector hole.

[0012] By adopting the above technical solution, when technicians perform wiring operations, the metal piece at one end of the connector lug is pressed against the conductive piece, so that the hole on the metal piece corresponds to the wiring hole. Then, the clamping bolt is screwed into the wiring hole, so that the clamping bolt clamps the metal piece, thereby achieving a stable conductive connection between the metal piece and the conductive piece. The operation is simple and improves the stability of the wiring connection, reducing the service life problems caused by splitting the power connection wire and the meter connection wire into multiple strands of copper / aluminum core wire before connecting them.

[0013] Optionally, the maintenance component includes an insulating cover rotatably mounted on the connector, the insulating cover being movably mounted on the wiring lug.

[0014] By adopting the above technical solution, the insulating cover can be rotated to expose the wiring terminals when wiring is required, making it easier for technicians to perform wiring. After wiring is completed, the technicians can rotate the insulating cover to cover the wiring terminals, reducing the exposure of the terminals and thus reducing accidental contact by outsiders. This improves the safety performance of the wiring points, reduces the aging of the terminals, and extends their service life.

[0015] Optionally, the multiple conductive plates are divided into multiple groups, with two adjacent conductive plates forming a group. In the same group, one conductive plate is connected to the input line of the power supply connection line and the meter connection line, and the other conductive plate is connected to the output line of the power supply connection line and the meter connection line. A connecting plate is fixedly connected to the side of the two conductive plates in the same group that are close to each other. A connecting hole is opened between the two conductive plates in the same group on the connecting seat. The connecting seat is also provided with a connector that can be inserted into the connecting hole to connect the two connecting plates.

[0016] By adopting the above technical solution, since electricity meters need to be inspected regularly, conventional wiring methods require power outages on the user's side during maintenance, affecting the user's electricity experience. With the above setting, when the electricity meter is being inspected or replaced, two adjacent conductive plates in the same group are connected by connectors. This way, when the meter connection wires are disassembled and the meter is replaced, the user's electricity use is not easily affected, thus achieving uninterrupted maintenance or replacement and improving the user's electricity experience.

[0017] Optionally, the connector includes an uninterruptible plug that can be movably inserted into the connection hole, and the end of the uninterruptible plug is provided with a conductive contact, which is movably fitted and pressed against the connecting plates on two adjacent conductive plates.

[0018] By adopting the above technical solution, when the meter is being repaired or replaced, the uninterruptible plug is inserted into the connection hole, and the conductive contacts of the uninterruptible plug are pressed against the two connecting plates, thereby electrically connecting the two adjacent conductive plates.

[0019] Optionally, the connecting plate is an elastic metal plate, and the connecting plate is arc-shaped. One end of the uninterruptible plug inserted into the connecting hole is fitted and pressed against the arc side of the connecting plate. The connecting seat is also provided with a limiting member for limiting the position of the uninterruptible plug.

[0020] By adopting the above technical solution, by setting two adjacent connecting plates as arc-shaped elastic metal plates, when the uninterruptible plug is inserted into the connection hole, the uninterruptible plug presses against the arc surface of the connecting plate, so that the two connecting plates approach each other until they are in close contact with the conductive contact. At this time, under the action of the limiting component, the uninterruptible plug is stably inserted into the connection hole, thereby realizing a stable connection between the input line and the output line, thus enabling the stable performance of subsequent uninterrupted maintenance or replacement operations.

[0021] After maintenance, when the uninterruptible plug is pulled out of the connection hole, the elastic metal sheet rebounds under the action of elastic restoring force, thereby separating the two elastic metal sheets. This reduces voltage breakdown caused by the small gap between the connecting pieces, thus reducing the risk of circuit breakage caused by voltage breakdown and affecting the normal electricity meter reading.

[0022] Optionally, two insulating covers are provided, each corresponding to one end of the conductive plate. One insulating cover corresponds to the terminal of the power connection line, and the other insulating cover corresponds to the terminal of the meter connection line. An adjusting gear is provided at the pivot of the insulating cover corresponding to the meter connection line. An adjusting rack is provided on the connecting seat and fixed to the uninterruptible plug. The adjusting rack meshes with the adjusting gear.

[0023] By adopting the above technical solution, when the insulating cover near the meter is opened, the insulating cover rotates, causing the adjusting gear to rotate. The adjusting gear drives the adjusting rack, which is fixedly connected to the uninterruptible plug, to slide, so that the uninterruptible plug can be stably inserted into the connection hole, thereby enabling subsequent uninterrupted maintenance and replacement.

[0024] Meanwhile, each time the insulating cover near the meter is opened, the connector near the meter is short-circuited, thereby reducing the risk of electric shock from accidental contact and improving the operational safety of relevant technicians.

[0025] Optionally, the limiting member includes a limiting block elastically disposed on the side wall of the connecting seat, the limiting block being movably protruding from the side wall of the connecting seat, and the limiting block being movably fitted and pressed against the side wall of the insulating cover.

[0026] By adopting the above technical solution, when performing maintenance or replacement, the technician first presses the limiting block so that it is inserted into the side wall of the connector, and then rotates the insulating cover to expose the meter connector. At this time, the limiting block protrudes from the side wall of the connector under the action of elastic restoring force and limits and abuts against the side wall of the insulating cover, so that the uninterruptible plug can be stably inserted into the connection hole, achieving stable uninterrupted maintenance.

[0027] After the maintenance is completed, the technicians rotate the insulating cover to cover the meter connector. At this time, the limit block still limits and presses against the side wall of the insulating cover, thereby achieving stable covering of the meter connector.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By setting up meter wiring terminals, power wiring terminals and connectors, the problem of multi-strand copper / aluminum core wire burning caused when the power connection line is directly connected to the meter connection line is reduced, and it is also convenient to carry out subsequent maintenance or replacement of the meter without powering it off.

[0030] 2. With the designed wiring lugs, it is not necessary to strip the insulation layer of the power connection wire / meter connection wire during wiring operations, which improves the safety and stability of wiring operations, and reduces the lifespan of the meter caused by burning and open circuits.

[0031] 3. With the uninterruptible power supply plug installed, when the meter is being repaired or replaced, the plug is inserted into the connection hole to establish a conductive connection between two adjacent conductive plates. This minimizes the current in the meter's connection wires, facilitating uninterrupted repair and replacement operations and improving the user's electricity experience. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a durable energy meter according to an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the connection structure of the connector;

[0034] Figure 3 This is a schematic diagram of the connection structure of the connector and the insulating cover;

[0035] Figure 4 This is a schematic diagram of the connection structure of the uninterruptible plug and connector.

[0036] Reference numerals: 1. Housing; 11. Meter body; 12. Meter connection line; 121. Meter input line; 122. Meter output line; 13. Power connection line; 131. Power input line; 132. Power output line; 14. Meter terminal block; 15. Power terminal block; 2. Connecting assembly; 21. Connecting base; 22. Conductive plate; 23. Wiring hole; 24. Tightening bolt; 25. Wiring lug; 251. Sleeve; 252. Metal sheet; 26. Inspection component; 261. Insulating cover; 27. Connecting hole; 28. Connector; 281. Connecting plate; 282. Uninterruptible power plug; 283. Conductive contact; 284. Adjusting gear; 285. Adjusting rack; 29. ​​Limiting component; 291. Limiting block. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0038] This application discloses a durable energy meter. (Refer to...) Figure 1 A durable electricity meter includes a box 1 fixed to a wall and a meter body 11 detachably installed in the box 1 by screws. The bottom side of the meter body 11 is connected to a plurality of meter connection lines 12. The meter connection lines 12 are divided into meter input lines 121 and meter output lines 122. It should be noted that this application takes a three-phase electricity meter as an example to illustrate the structure of this application. Therefore, in this application, the meter input lines 121 and the meter output lines 122 are provided in three sets.

[0039] Reference Figure 1 and Figure 2 The enclosure 1 is also secured with a power connection cable 13 that is electrically connected to the user side. Similarly, the power connection cable 13 is divided into a power input cable 131 and a power output cable 132, and both the power input cable 131 and the power output cable 132 are provided in three sets.

[0040] To facilitate the connection of the electricity meter to the user side, the housing 1 is provided with a connection component 2 for connecting the power connection line 13 and the electricity meter connection line 12. The connection component 2 includes a connection seat 21 fixed inside the housing 1. The connection seat 21 is horizontally arranged, and multiple conductive plates 22 are fixedly connected to the connection seat 21. In this application, there are six conductive plates 22. The six conductive plates 22 are evenly spaced along the horizontal direction. The six conductive plates 22 are divided into input conductive plates 22 and output conductive plates 22 according to their functions. The input conductive plates 22 and output conductive plates 22 are arranged alternately. The input conductive plates 22 are connected to the power input line 131 and the electricity meter input line 121, and the output conductive plates 22 are connected to the power output line 132 and the electricity meter output line 122.

[0041] Both ends of the conductive plate 22 are provided with wiring holes 23. The meter wiring terminal 14 and the power supply wiring terminal 15 are both wiring lugs 25. The wiring lug 25 includes a sleeve 251 that is sleeved with the power connection line 13 / meter connection line 12 and a metal piece 252 fixed to the end of the sleeve 251. The metal piece 252 is annular and its inner diameter is consistent with the inner diameter of the wiring hole 23. The connecting seat 21 is also provided with a clamping bolt 24. The clamping bolt 24 is threaded to the wiring hole 23. The large end of the clamping bolt 24 is in contact with the metal piece 252. One end of the conductive plate 22 corresponds to the meter connection line 12, and the other end of the conductive plate 22 corresponds to the power connection line 13.

[0042] Therefore, when wiring the user's electricity meter, the technician aligns the metal piece 252 on the corresponding power connection line 13 with the wiring hole 23, and aligns the metal piece 252 on the corresponding meter connection line 12 with the wiring hole 23 at the other end of the conductive piece. Then, the tightening bolt 24 is screwed in so that the large end of the tightening bolt 24 presses against the metal piece 252, making the metal piece 252 fit against the conductive piece, thus connecting the power connection line 13 and the meter connection line 12. This enables the wiring operation between the user side and the meter body 11. Furthermore, the connection seat 21 increases the operating space for the relevant technicians, thereby facilitating the wiring operation and improving wiring efficiency.

[0043] Reference Figure 2 and Figure 3 In another embodiment of this application, in order to achieve the goal of not disconnecting the power when repairing or replacing the electricity meter and improving the user's electricity experience, the connector 21 is also provided with a maintenance component 26. The maintenance component 26 includes an insulating cover 261 rotatably mounted on the connector 21. The insulating cover 261 is divided into two groups, which are arranged vertically opposite each other. One group of insulating covers 261 corresponds to the power connection line 13, and the other group of insulating covers 261 corresponds to the electricity meter connection line 12. Both insulating covers 261 are rotatably mounted on the connector 21, and the insulating covers 261 are movable to cover the wiring lug 25.

[0044] The six conductive plates 22 on the connector 21 are divided into three groups of two. One input conductive plate 22 is paired with an adjacent output conductive plate 22. A connection hole 27 is provided between adjacent input conductive plates 22 and output conductive plates 22. A connecting plate 281 is fixedly connected between two conductive plates 22 in the same group. The connector 21 is also provided with a connector 28 that can be inserted into the connection hole 27 to connect two connecting plates 281.

[0045] Reference Figure 3 and Figure 4 The connector 28 includes an uninterruptible plug 282 that is movably inserted into the connection hole 27. The end of the uninterruptible plug 282 inserted into the connection hole 27 is fixedly connected to a conductive contact 283. The conductive contact 283 is movably fitted and pressed against the end of the two connecting plates 281 that are close to each other.

[0046] Meanwhile, to facilitate uninterrupted meter replacement and stable disconnection of the two connecting plates 281 after meter replacement, the connecting plate 281 is a flexible metal plate with an arc shape. The connecting plate 281 is recessed from the side near the connection hole 27 to the side away from the connection hole 27, and the arc side of the connecting plate 281 near the connection hole 27 is in contact with the uninterruptible plug 282. Thus, when the uninterruptible plug 282 is inserted into the connection hole 27, it presses against the arc side of the connecting plate 281, so that the sides of the two connecting plates 281 that are close to each other come closer until they are in contact with the conductive contact 283, thereby connecting the power input line 131 and the power output line 132, thus realizing uninterrupted power operation on the user side.

[0047] To ensure uninterrupted operation, an adjusting gear 284 is provided at the shaft of the insulating cover 261 corresponding to the meter connection line 12. An adjusting rack 285, which is fixedly connected to the uninterruptible plug 282, is slidably mounted on the connecting seat 21. The adjusting rack 285 meshes with the adjusting gear 284. When the insulating cover 261 near the meter is opened, the insulating cover 261 rotates, causing the adjusting gear 284 to rotate. The adjusting gear 284 then drives the adjusting rack 285, which is fixedly connected to the uninterruptible plug 282, to slide, thus allowing the uninterrupted plug 282 to be stably inserted into the connection hole 27, enabling subsequent uninterrupted maintenance and replacement.

[0048] Meanwhile, in order to keep the position of the uninterruptible plug 282 constant, the connector 21 is also provided with a limiting member 29. The limiting member 29 includes a limiting block 291 that is elastically slidably disposed on the side wall of the connector 21. The limiting block 291 is movably protruding from the side wall of the connector 21. The limiting block 291 is movably fitted and pressed against the side wall of the insulating cover 261. The limiting block 291 is movably submerged into the side wall of the connector 21.

[0049] During maintenance or replacement, the technician first presses the limiting block 291 so that it is inserted into the side wall of the connector 21. Then, the insulating cover 261 is rotated to expose the meter connector. At this time, the limiting block 291 protrudes from the side wall of the connector 21 under the action of elastic restoring force, and limits and presses against the side wall of the insulating cover 261. This allows the uninterruptible plug 282 to be stably inserted into the connection hole 27, achieving stable uninterrupted maintenance.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A durable electric energy meter, characterized by: The utility model provides a kind of electric meter, including fixed box (1) on wall surface and electric meter body (11) detachably installed on box (1), electric meter body (11) bottom side is connected with multiple electric meter connecting wires (12), multiple electric meter connecting wires (12) are equipped with electric meter terminal (14), box (1) is clamped and fixed with power supply connecting wire (13), power supply connecting wire (13) is connected with power supply, and power supply connecting wire (13) is equipped with power supply terminal (15), and the connecting assembly (2) for connecting power supply connecting wire (13) and electric meter connecting wire (12) is further fixed and embedded in the box (1). The connecting assembly (2) includes connecting seat (21) embedded in the box (1) and located at the bottom side of the electric meter body (11), and an inspection piece (26) provided on the connecting seat (21). The connecting seat (21) is provided with a plurality of conductive plates (22), and the plurality of conductive plates (22) are arranged in sequence and at intervals. The plurality of conductive plates (22) correspond one-to-one to the plurality of electric meter connecting wires (12) and the plurality of power supply connecting wires (13). One end of the conductive plate (22) corresponds to the electric meter connecting wire (12), and the other end of the conductive plate (22) corresponds to the power supply connecting wire (13).

2. A durable electric energy meter according to claim 1, characterized in that: The power supply terminal (15) and the electric meter terminal (14) are both terminal noses (25). The terminal nose (25) includes a sleeve (251) that is sleeved with the electric meter connecting wire (12) or the power supply connecting wire (13), and a metal sheet (252) that is annularly arranged at one end of the sleeve (251). Both ends of the conductive plate (22) are provided with a terminal hole (23) with a diameter consistent with the center of the metal sheet (252). The connecting seat (21) is further provided with a clamping bolt (24) screwed thereon. The clamping bolt (24) penetrates the metal sheet (252) and is screwed into the terminal hole (23).

3. A durable energy meter according to claim 2, characterized in that: The inspection piece (26) includes an insulating cover (261) rotatably arranged on the connecting seat (21). The insulating cover (261) is movably arranged on the terminal nose (25).

4. A durable energy meter according to claim 3, characterized in that: The plurality of conductive plates (22) are divided into multiple groups. Adjacent two conductive plates (22) form a group. In the same group, one conductive plate (22) is connected to the input line of the power supply connecting wire (13) and the electric meter connecting wire (12), and the other conductive plate (22) is connected to the output line of the power supply connecting wire (13) and the electric meter connecting wire (12). Both sides of the two conductive plates (22) in the same group are fixedly connected to a connecting plate (281). The connecting seat (21) is provided with a connecting hole (27) between the two conductive plates (22) in the same group. The connecting seat (21) is further provided with a connecting piece (28) movably inserted into the connecting hole (27) to connect the two connecting plates (281).

5. A durable energy meter according to claim 4, characterized in that: The connecting piece (28) comprises a continuous power plug (282) movably inserted into the connecting hole (27), and an electrically-conductive contact (283) is arranged at the end of the continuous power plug (282) and movably abuts against the connecting plate (281) on the adjacent two electrically-conductive plates (22).

6. A durable energy meter according to claim 5, characterized in that: The connecting plate (281) is an elastic metal plate and is in the shape of a circular arc, one end of the continuous power plug (282) inserted into the connecting hole (27) abuts against the arc surface of the connecting plate (281), and the connecting seat (21) is further provided with a limiting piece (29) for limiting the position of the continuous power plug (282).

7. A durable energy meter according to claim 6, characterized in that: The two insulating covers (261) correspond to the two ends of the electrically-conductive plate (22) one by one, one of the insulating covers (261) corresponds to the terminal of the power connection wire (13), and the other insulating cover (261) corresponds to the terminal of the electric meter connection wire (12), the pivot of the insulating cover (261) corresponding to the electric meter connection wire (12) is provided with an adjusting gear (284), the connecting seat (21) is provided with an adjusting rack (285) fixed with the continuous power plug (282), and the adjusting rack (285) is engaged with the adjusting gear (284).

8. A durable energy meter according to claim 7, characterized in that: The limiting piece (29) comprises a limiting block (291) elastically arranged on the side wall of the connecting seat (21), the limiting block (291) movably protrudes from the side wall of the connecting seat (21), and the limiting block (291) movably abuts against the side wall of the insulating cover (261).

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