Large-current electric energy meter

Abstract

The utility model discloses a large-current electric energy meter which comprises a bottom shell and an upper cover covering the bottom shell, and further comprises large-current wiring assemblies arranged at the two ends of the bottom shell. The large-current wiring assembly comprises wiring bases installed on the openings in the two ends of the bottom shell and wiring copper plates fixed in wiring grooves of the wiring bases through wiring bolts, and the back faces of the wiring grooves are provided with through grooves for the wiring copper plates to penetrate through. A plurality of wiring holes are formed in one end, far away from the wiring bolt, of the wiring copper plate at intervals. The large-current wiring assemblies are arranged at the two ends of the bottom shell of the electric energy meter, so that the electric energy meter can be directly connected to a large-current circuit, the necessity of using a mutual inductor is avoided, the system structure is simplified, and the practicability and the cost effectiveness of the electric energy meter are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meters, in particular to a large current electric energy meter. Background Art

[0002] With the development of the power industry, the requirements for electricity meters are becoming increasingly stringent, especially in industrial and large-scale commercial applications. Traditional electricity meters are designed primarily for low-current applications in household environments, and their terminal connections are typically only capable of carrying relatively small currents. However, in certain application scenarios, such as industrial production and data center power supply, the high currents required far exceed the capabilities of ordinary electricity meters.

[0003] In this context, to accurately measure energy in high-current environments, a current transformer is typically installed at the front end of the energy meter. The current transformer reduces the high current to a smaller value that the meter can measure, thereby indirectly measuring the high current. While this method solves the problem of high-current measurement, it also comes with some drawbacks, such as increased installation complexity, higher costs, and, to a certain extent, reduced overall system reliability.

[0004] Therefore, designing an electric energy meter that can directly withstand and accurately measure high currents without adding additional equipment has become a pressing technical problem. To address this need, this application proposes a new type of high-current electric energy meter. By improving the design of the electric energy meter's wiring components, it aims to enable it to directly connect to and measure high currents, thereby reducing system costs and improving measurement accuracy and reliability. Utility Model Content

[0005] In view of the deficiencies in the background technology, the utility model provides a large current electric energy meter.

[0006] The technical solution adopted by the utility model is: a large-current electric energy meter, including a bottom shell and an upper cover covering the bottom shell, and also including a large-current wiring assembly arranged on both ends of the bottom shell, the large-current wiring assembly including a wiring base installed on the openings at both ends of the bottom shell and a wiring copper plate fixed in a wiring groove of the wiring base by wiring bolts, the back of the wiring groove is provided with a through groove for the wiring copper plate to pass through, and a plurality of wiring holes are arranged at intervals on the end of the wiring copper plate away from the wiring bolts.

[0007] Furthermore, connecting screw holes are provided on both sides of the wiring slot, studs are threadedly connected to the connecting screw holes, and positioning screw holes are provided on both sides of the wiring copper plate and are threadedly connected to the studs.

[0008] Furthermore, a communication interface is provided on the wiring base between the wiring slots, and a flaring slot is extended from the bottom of the communication interface.

[0009] Furthermore, the expansion groove is a bottle-shaped structure.

[0010] Furthermore, a slot for connecting an insulating partition is provided on the front side of the expansion groove.

[0011] Furthermore, a neutral line interface is provided on the right side of the wiring base.

[0012] Furthermore, the bottom shell is provided with a first positioning groove, the wiring base is provided with a second positioning groove communicating with the first positioning groove, and the upper cover is provided with a first positioning boss engaged with the first positioning groove and the second positioning groove.

[0013] Furthermore, third positioning grooves are provided on both sides of the second positioning groove, and second positioning bosses engaged with the third positioning grooves are provided on both sides of the opening.

[0014] Furthermore, a flip cover for covering the opening is rotatably connected to the rotating shafts at both ends of the upper cover.

[0015] The beneficial effects of the utility model are:

[0016] 1. Able to directly carry large currents: By setting large current wiring components at both ends of the bottom shell of the energy meter, the energy meter can be directly connected to the large current line without the need for external transformers for current conversion, which greatly simplifies the system structure and improves the practicality of the energy meter.

[0017] 2. Reduced costs: Traditional methods typically require the installation of additional current transformers to accommodate high current measurements, which not only increases costs but also introduces additional failure points. This application eliminates the need for external transformers, thereby reducing overall equipment acquisition and installation costs.

[0018] 3. Improve system reliability: By removing the mutual inductor, the number of connection points between devices is reduced, thereby reducing measurement errors caused by poor connection or equipment failure, and enhancing the stability and reliability of the system.

[0019] 4. Simplified installation and maintenance: The design of high-current wiring components makes the installation of the energy meter simpler and faster, reducing the workload of on-site construction. At the same time, the simpler structure makes daily maintenance more convenient and reduces maintenance costs.

[0020] 5. Enhanced safety: The close fit design between the wiring base and the wiring copper plate, coupled with the fixation of the wiring bolts, ensures the stability of the connection parts, avoids safety hazards caused by poor contact, and improves the safety of the entire electricity metering system.

[0021] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 Schematic diagram of the structure of the bottom shell.

[0024] Figure 3 Schematic diagram of the structure of the upper cover.

[0025] Figure 4 This is a schematic diagram of the front side of the wiring base.

[0026] Figure 5 This is a schematic diagram of the rear side of the wiring base.

[0027] Figure 1-5 Middle: 1. Bottom shell; 2. Upper cover; 3. Opening; 4. Wiring base; 5. Wiring bolt; 6. Wiring slot; 7. Wiring copper plate; 8. Through slot; 9. Wiring hole; 10. Connecting screw hole; 11. Stud; 12. Positioning screw hole; 13. Communication interface; 14. Expanding slot; 15. Slot; 16. Neutral line interface; 17. First positioning slot; 18. Second positioning slot; 19. First positioning boss; 20. Third positioning slot; 21. Second positioning boss; 22. Rotating shaft; 23. Flip cover. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0030] The utility model provides a large current electric energy meter.

[0031] In this embodiment, referring to Figure 1-5The high-current electric energy meter includes a bottom shell 1 and an upper cover 2 covering the bottom shell 1, and also includes a high-current wiring assembly arranged on both ends of the bottom shell. The high-current wiring assembly includes a wiring base 4 installed on the openings 3 at both ends of the bottom shell 1 and a wiring copper plate 7 fixed in a wiring groove 6 of the wiring base by a wiring bolt 5. The back of the wiring groove 6 is provided with a through groove 8 for the wiring copper plate to pass through. A plurality of wiring holes 9 are arranged at intervals on the end of the wiring copper plate 7 away from the wiring bolt.

[0032] In the above technical solution, by arranging high-current wiring components at both ends of the bottom shell of the electricity meter, the electricity meter can be directly connected to the high-current line, thereby avoiding the necessity of using a transformer, simplifying the system structure, and improving the practicality and cost-effectiveness of the electricity meter.

[0033] The main medium for high-current wiring components is a copper plate, which can carry larger cables. The thickness of the copper plate ranges from 3.5 to 5 mm and can handle high currents of 350 to 600 AD. This eliminates the need for transformers in the energy meter.

[0034] Among them, the wiring holes are used for wiring with internal circuit boards and other components.

[0035] Specifically, connecting screw holes 10 are provided on both sides of the wiring slot 6 , and studs 11 are threadedly connected to the connecting screw holes 10 . Positioning screw holes 12 threadedly connected to the studs 11 are provided on both sides of the wiring copper plate.

[0036] By setting connecting screw holes on both sides of the wiring slot and using studs to connect with the positioning screw holes on the wiring copper plate, this structural design ensures that the wiring copper plate is firmly fixed in the wiring slot, enhancing the stability and reliability of the connection.

[0037] Specifically, a communication interface 13 is provided on the wiring base between the wiring slots, and a flaring slot 14 is extended from the bottom of the communication interface 13 .

[0038] A communication interface is added to the wiring base for communication wiring. At the same time, a connecting expansion slot is set at the bottom of the communication interface to facilitate wiring and facilitate data exchange between the electric energy meter and other devices or networks, thereby improving the convenience and compatibility of data transmission.

[0039] Specifically, the expansion groove is a bottle-shaped structure.

[0040] The expanded slot adopts a bottle-shaped structure design, which is conducive to providing better guidance when inserting communication cables or other connectors. It also has a certain dust and water-proof effect, improving the convenience of connection and protection performance.

[0041] Specifically, a slot 15 for connecting an insulating partition is provided on the front side of the expansion groove.

[0042] The slot 15 provided on the front side of the expanded groove can be used to connect an insulating partition, which can isolate large currents and heat on both sides, thereby improving the safety and service life of the equipment.

[0043] Specifically, a neutral line interface 16 is further provided on the right side of the wiring base 4 .

[0044] A neutral line interface is added on the right side of the wiring base, making it easier for the electric energy meter to complete the connection of three-phase four-wire or single-phase three-wire systems, meeting the needs of different power systems and enhancing the application scope of the electric energy meter.

[0045] Specifically, the bottom shell 1 is provided with a first positioning groove 17, the wiring base is provided with a second positioning groove 18 connected to the first positioning groove, and the upper cover 2 is provided with a first positioning boss 19 that engages with the first positioning groove 17 and the second positioning groove.

[0046] After the wiring base is installed on the opening of the bottom shell, the wiring base is flush with the bottom shell, so that the first positioning groove and the second positioning groove are continuous annular positioning grooves, which can be adapted and engaged with the first positioning boss on the upper cover to play a positioning role and improve the dustproof and waterproof effects.

[0047] Specifically, third positioning grooves 20 are provided on both sides of the second positioning groove, and second positioning bosses 21 engaged with the third positioning grooves 20 are provided on both sides of the opening.

[0048] The third positioning grooves are provided on both sides of the second positioning groove and matched with the second positioning bosses on both sides of the opening to facilitate installation and adaptation of the wiring base.

[0049] Specifically, the rotating shafts 22 at both ends of the upper cover are rotatably connected to flip covers 23 for covering the openings.

[0050] The flip-up design on the hinges at both ends of the upper cover allows users to easily open or close the wiring area, which not only facilitates wiring operations but also provides additional protection, avoiding the risk of damage to the wiring part caused by external factors.

[0051] Technical personnel please note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A high-current electric energy meter, comprising a bottom shell and an upper cover covering the bottom shell, characterized in that: It also includes a high-current wiring assembly arranged on both ends of the bottom shell, and the high-current wiring assembly includes a wiring base installed on the openings at both ends of the bottom shell and a wiring copper plate fixed in the wiring groove of the wiring base by wiring bolts. The back of the wiring groove is provided with a through groove for the wiring copper plate to pass through, and a plurality of wiring holes are arranged at intervals on the end of the wiring copper plate away from the wiring bolts.

2. The high-current electric energy meter according to claim 1, characterized in that: Connecting screw holes are provided on both sides of the wiring slot, studs are threadedly connected to the connecting screw holes, and positioning screw holes are provided on both sides of the wiring copper plate and are threadedly connected to the studs.

3. The high-current electric energy meter according to claim 1, characterized in that: A communication interface is provided on the wiring base between the wiring slots, and a flaring slot is extended from the bottom of the communication interface.

4. The high-current electric energy meter according to claim 3, characterized in that: The expansion groove is a bottle-shaped structure.

5. The high-current electric energy meter according to claim 4, characterized in that: A slot for connecting an insulating partition is provided on the front side of the expansion groove.

6. The high-current electric energy meter according to claim 1, characterized in that: A neutral line interface is also provided on the right side of the wiring base.

7. The high-current electric energy meter according to claim 1, characterized in that: The bottom shell is provided with a first positioning groove, the wiring base is provided with a second positioning groove communicating with the first positioning groove, and the upper cover is provided with a first positioning boss that engages with the first positioning groove and the second positioning groove.

8. The high-current electric energy meter according to claim 7, characterized in that: Third positioning grooves are provided on both sides of the second positioning groove, and second positioning bosses engaged with the third positioning grooves are provided on both sides of the opening.

9. The high-current electric energy meter according to claim 1, characterized in that: A flip cover for covering the opening is rotatably connected to the rotating shafts at both ends of the upper cover.

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