A power distribution metering box

Abstract

The utility model discloses a distribution metering box, through with electric energy meter original dispersion's wiring loop becomes concentrated, pre -buried formula's busbar quick -joint, and installation personnel need no longer again tedious stripping, winding, screwing every wiring terminal's operation, only need to place electric energy meter to the position, make its wiring terminal and busbar's electric meter wiring part alignment and connect, can, all as electric energy meter connection loop's wiring busbar group is pre -fixed in the concealed wire groove, make the whole box space well -ordered, and maintenance personnel can be positioned to the electric meter or loop of need overhauling fast, and distribution metering box busbar connection is rigid, integration, and contact area is bigger and more stable, and the connection resistance is small, and the heat output is low, and the risk of such failure is reduced greatly, and the concealed wire groove is also a protective cover, and the busbar of electrification and other equipment and operation space in the box are isolated, and the risk of accidental electric shock or short circuit is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electricity metering technology, specifically to a power distribution metering box. Background Technology

[0002] Distribution metering boxes are an important component of power systems. They are commonly used to calculate and manage the power consumption of user terminals. The internal components of distribution metering boxes include electrical equipment such as electricity meters and circuit breakers.

[0003] Current power distribution metering boxes require the electricity meter to be installed in its designated area. This is typically done by securing the meter inside the box with fasteners or mounting it on internal rails. Wiring involves using flexible wires to connect the meter to the safety switch. This installation and wiring method suffers from drawbacks, including a large workload and inconvenient wiring, especially in metering boxes with a large number of meters. Excessive wiring can lead to wire clutter, making later identification and maintenance difficult.

[0004] In view of this, there is an urgent need to design a power distribution metering box to solve the defects in the installation and wiring of electricity meters in existing power distribution metering boxes. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a power distribution metering box, comprising a metering box body. The interior of the metering box body includes a meter area and a switch area. An electricity meter is connected within the meter area. The meter area has at least one installation unit, and each installation unit includes several horizontally arranged meter fixing positions. A concealed wire groove is provided below each meter fixing position, and a wiring busbar assembly is fixedly installed within the concealed wire groove. One end of the wiring busbar assembly extends towards the meter fixing position to form a meter wiring portion, which is connected to the wiring terminal of the electricity meter. A meter positioning hole is provided on the meter fixing position. A concealed countersunk hole is provided on the back of the metering box body, directly opposite the meter positioning hole. A meter mounting hole is provided on the back of the electricity meter, corresponding to the meter positioning hole. The electricity meter is connected to the metering box body by fasteners that sequentially pass through the concealed countersunk hole, the meter positioning hole, and the meter mounting hole.

[0006] In one possible implementation, a transition groove is provided between the meter area and the switch area, the middle part of the wiring busbar group is located in the transition groove, and the other end of the wiring busbar group extends toward the switch area to form a switch terminal.

[0007] In one possible implementation, a separating protrusion is provided between adjacent switch terminals.

[0008] In one possible implementation, the metering box body includes a bottom shell and a first cabinet door and a second cabinet door movably connected to the bottom shell, the first cabinet door facing the meter area and the second cabinet door facing the switch area.

[0009] In one possible implementation, the bottom shell is provided with a first locking part and a second locking part arranged in parallel, and the first cabinet door and the second cabinet door are respectively provided with a first locking hole and a second locking hole; when the metering box body is in a locked state, the first locking part is connected to the first locking hole, and the second locking part is connected to the second locking hole.

[0010] In one possible implementation, the meter positioning hole is located on the bottom shell, and a heat dissipation groove is formed on the outer periphery of the meter positioning hole.

[0011] In one possible implementation, the wiring busbar group includes four conductive busbars, the middle of which is covered with an insulating layer. The four conductive busbars are respectively a live wire inlet busbar, a live wire outlet busbar, a neutral wire inlet busbar, and a neutral wire outlet busbar.

[0012] In one possible implementation, all the meter wiring portions within the same installation unit are on the same plane, and the thickness of the meter wiring portions is 0.5mm to 1.2mm.

[0013] In one possible implementation, the concealed wire groove is connected to the metering box body by fasteners.

[0014] In one possible implementation, the switch area is connected to miniature circuit breakers and molded case circuit breakers.

[0015] The method of using this utility model power distribution metering box is as follows: move the electricity meter to the meter fixing position, align and connect the neutral and live wire inlet and outlet terminals of the electricity meter with the meter wiring section of the wiring busbar group, and then connect the electricity meter through the fastener through the back of the metering box body to fix the electricity meter on the metering box body, thereby quickly completing the installation and fixing of the electricity meter.

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages: This technical solution transforms the original scattered wiring circuits of the electricity meter into centralized, pre-embedded busbar quick-connects. Installers no longer need to perform tedious operations such as stripping, winding, and tightening each terminal. They only need to place the electricity meter in place, align its terminals with the meter wiring section of the busbar, and connect them. All the busbar groups that serve as the connection circuits for the electricity meters are pre-fixed in concealed wiring troughs, making the entire box space neat and orderly. Maintenance personnel can quickly locate the electricity meter or circuit that needs maintenance.

[0017] In traditional power distribution metering boxes, the connection of flexible wires relies on multiple screws for crimping. Loose screws or poor contact can lead to overheating, arcing, or even fire. In contrast, the busbar connection in this technical solution is rigid and integrated, with a larger and more stable contact area, lower connection resistance, and lower heat generation, greatly reducing the risk of such failures. At the same time, the concealed cable tray itself also acts as a protective cover, isolating the energized busbar from other equipment and operating space inside the box, reducing the risk of accidental electric shock or short circuit.

[0018] This technical solution installs the fasteners of the power distribution metering box from the back of the metering box body, further simplifying the operation difficulty in the crowded box. The standardized installation unit and meter fixing position design enable production, assembly and on-site installation to follow a unified standard, which is conducive to large-scale production and ensures the consistency of power distribution metering box product quality. Attached Figure Description

[0019] Figure 1 This is a perspective view of the power distribution metering box in the open state according to an embodiment of the present utility model.

[0020] Figure 2 This is a perspective view of the bottom shell of an embodiment of the present utility model.

[0021] Figure 3 This is a partial schematic diagram of the meter fixing position inside the power distribution metering box according to an embodiment of the present utility model.

[0022] Figure 4 This is a perspective view of the wiring busbar assembly according to an embodiment of the present utility model.

[0023] Figure 5 This is a cross-sectional view of the power distribution metering box according to an embodiment of the present utility model.

[0024] Figure 6 for Figure 5 Enlarged view of part A in the middle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. The accompanying drawings are for illustrative purposes only, representing schematic diagrams only, not actual object drawings, and should not be construed as limiting this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] Combined with appendix Figure 1 To be continued Figure 6 This utility model provides a power distribution metering box, comprising a metering box body 1. The metering box body 1 includes a meter area 11 and a switch area 12. An electricity meter 2 is connected to the meter area 11. The meter area 12 has at least one mounting unit 121. Each mounting unit 121 includes several horizontally arranged meter fixing positions 122. A concealed wiring groove 3 is provided below each meter fixing position 122. A wiring busbar assembly 4 is fixedly installed in the concealed wiring groove 3. One end of the wiring busbar assembly 4 extends towards one side of the meter fixing position 122. The meter wiring part 41 is connected to the wiring terminal of the electricity meter 2. The meter fixing position 122 is provided with a meter positioning hole 131. The back of the meter box body 1 is provided with a recessed countersunk hole 132 opposite to the meter positioning hole 131. The back of the electricity meter 2 is provided with a meter mounting hole 21 corresponding to the meter positioning hole 131. The electricity meter 2 is connected to the meter box body 1 by fasteners passing through the recessed countersunk hole 132, the meter positioning hole 131 and the meter mounting hole 21 in sequence.

[0027] The method of using this utility model power distribution metering box is as follows: move the electricity meter 2 to the meter fixing position 112, so that the neutral and live wire inlet and outlet terminals of the electricity meter 2 are aligned and connected with the meter wiring part 41 of the wiring busbar group 4, and then fasteners are passed through the back of the metering box body 1 and connected to the electricity meter 2, so that the electricity meter 2 is fixed on the metering box body 1, thereby quickly completing the installation and fixing of the electricity meter 2.

[0028] In this embodiment, as shown in the appendix Figure 1 and attached Figure 3As shown, the meter area 12 is provided with three installation units 121. Each installation unit 121 includes three horizontally arranged meter fixing positions 122. Each meter fixing position 122 is equipped with an energy meter 2. The wiring busbar group 4 corresponding to each energy meter 2 is pre-embedded in the concealed wire groove 3 below the same row of energy meters 2.

[0029] In this embodiment, as shown in the appendix Figure 2 As shown, a transition groove 5 is provided between the meter area 11 and the switch area 12. The middle part of the wiring busbar group 4 is located in the transition groove 5. The other end of the wiring busbar group 4 extends towards the switch area 12 to form a switch terminal 42. The wiring busbar groups 4 pre-embedded in each of the concealed wire grooves 3 converge into the transition groove 5 and extend from the opening of the transition groove 5 towards the switch area 12 to form a switch terminal 42. The switch terminal 42 is used for the electrical connection between the wiring busbar group 4 and the switch in the switch area 12.

[0030] In this embodiment, a separating protrusion is provided between adjacent switch terminals 42. The separating protrusion is not shown in the figures. The separating protrusion is used to improve the creepage distance and insulation between the various busbars in the wiring busbar group 4.

[0031] In this embodiment, the meter box body 1 includes a bottom shell 13 and a first cabinet door 14 and a second cabinet door 15 movably connected to the bottom shell 13. The first cabinet door 14 faces the meter area 11, and the second cabinet door 15 faces the switch area 12. The meter area 11 and the switch area 12 are managed by independent cabinet doors.

[0032] In this embodiment, as shown in the appendix Figure 1 and attached Figure 2 As shown, the bottom shell 13 is provided with a first locking part 133 and a second locking part 134 arranged in parallel, and the first cabinet door 14 and the second cabinet door 15 are respectively provided with a first locking hole 141 and a second locking hole 151; when the metering box body 1 is in the locked state, the first locking part 133 is connected in the first locking hole 141, and the second locking part 134 is connected in the second locking hole 151; the first locking part 133 and the second locking part 134 are locked by a lead seal or a padlock.

[0033] In this embodiment, as shown in the appendix Figure 5 and attached Figure 6 As shown, the meter positioning hole 131 is located on the bottom shell 13. A heat dissipation groove 135 is provided on the outer periphery of the meter positioning hole 131. The meter fixing position 122 is provided with three meter positioning holes 131, and a heat dissipation groove 135 is provided on the outer periphery of each meter positioning hole 131.

[0034] In this embodiment, as shown in the appendix Figure 4 As shown, the busbar group 4 includes four conductive busbars, each with an insulating layer 43 covering its center. The four conductive busbars are respectively a live wire inlet busbar 44, a live wire outlet busbar 45, a neutral wire inlet busbar 46, and a neutral wire outlet busbar 47. It should be noted that... Figure 4 The wiring busbar group 4 mentioned above is an example of the busbar corresponding to the #4 energy meter.

[0035] In this embodiment, all the meter wiring portions 41 within the same mounting unit 111 are on the same plane, and the thickness of the meter wiring portions 41 is 0.5mm to 1.2mm. This size of the meter wiring portions 41 facilitates deformation wiring.

[0036] In this embodiment, the concealed wire groove 3 is connected to the metering box body 1 by fasteners.

[0037] In this embodiment, the switch area 12 is connected to miniature circuit breakers and molded case circuit breakers, and the switch area 12 can be further divided into secondary zones according to the switch type.

[0038] In this embodiment, the fasteners used to fix the electricity meter 2 and the fasteners used to fix the concealed wire groove 3 can be screws.

[0039] This technical solution transforms the original scattered wiring circuits of the electricity meter 2 into centralized, pre-embedded busbar quick-connects in the power distribution meter box. Installers no longer need to perform tedious operations such as stripping, winding, and tightening each terminal. They only need to place the electricity meter 2 in place, align its terminals with the meter wiring section of the busbar, and connect them. All the wiring busbar groups 4 that serve as the connection circuits for the electricity meters are pre-fixed in the concealed wiring troughs, making the entire box space neat and orderly. Maintenance personnel can quickly locate the meter or circuit that needs maintenance.

[0040] In traditional power distribution metering boxes, the connection of flexible wires relies on multiple screws for crimping. Loose screws or poor contact can lead to overheating, arcing, or even fire. In contrast, the busbar connection of the power distribution metering box in this embodiment is rigid and integrated, with a larger and more stable contact area, lower connection resistance, and lower heat generation, greatly reducing the risk of such failures. At the same time, the concealed cable tray 3 itself is also a protective cover, isolating the energized busbar from other equipment and operating space inside the box, reducing the risk of accidental electric shock or short circuit.

[0041] The fasteners of this technical solution for the power distribution metering box are installed from the back of the metering box body 1, which further simplifies the operation difficulty in the crowded box. The standardized installation unit and meter fixing position design enable production, assembly and on-site installation to follow a unified standard, which is conducive to large-scale production and ensures the consistency of power distribution metering box product quality.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model, or direct / indirect applications in other related technical fields, should be included within the scope of protection of the claims of this utility model.

Claims

1. A power distribution metering box, comprising a metering box body, wherein the interior of the metering box body includes a meter area and a switch area, and an energy meter is connected in the meter area, characterized in that, The meter area is provided with at least one installation unit. Each installation unit includes several horizontally arranged meter fixing positions. A concealed wire groove is provided below the meter fixing position. A wiring busbar assembly is fixedly installed in the concealed wire groove. One end of the wiring busbar assembly extends towards the meter fixing position to form a meter wiring part. The meter wiring part is connected to the wiring terminal of the electricity meter. A meter positioning hole is provided on the meter fixing position. A concealed countersunk hole is provided on the back of the meter box body, directly opposite the meter positioning hole. A meter mounting hole is provided on the back of the electricity meter, corresponding to the meter positioning hole. The electricity meter is connected to the meter box body by fasteners passing through the concealed countersunk hole, the meter positioning hole, and the meter mounting hole in sequence.

2. A power distribution metering box according to claim 1, characterized in that, A transition groove is provided between the meter area and the switch area. The middle part of the wiring busbar group is located in the transition groove, and the other end of the wiring busbar group extends towards the switch area to form a switch terminal.

3. A power distribution metering box according to claim 2, characterized in that, A separating protrusion is provided between adjacent switch terminals.

4. A power distribution metering box according to claim 1, characterized in that, The metering box body includes a bottom shell and a first cabinet door and a second cabinet door movably connected to the bottom shell. The first cabinet door faces the meter area, and the second cabinet door faces the switch area.

5. A power distribution metering box according to claim 4, characterized in that, The bottom shell is provided with a first locking part and a second locking part arranged in parallel, and the first cabinet door and the second cabinet door are respectively provided with a first locking hole and a second locking hole; when the metering box body is in a locked state, the first locking part is connected to the first locking hole, and the second locking part is connected to the second locking hole.

6. A power distribution metering box according to claim 5, characterized in that, The meter positioning hole is located on the bottom shell, and a heat dissipation groove is formed on the outer periphery of the meter positioning hole.

7. A power distribution metering box according to any one of claims 1 to 6, characterized in that, The wiring busbar group includes four conductive busbars, the middle of which is covered with an insulating layer. The four conductive busbars are respectively the live wire inlet busbar, the live wire outlet busbar, the neutral wire inlet busbar, and the neutral wire outlet busbar.

8. A power distribution metering box according to any one of claims 1 to 6, characterized in that, All the meter wiring portions within the same installation unit are on the same plane, and the thickness of the meter wiring portions is 0.5mm to 1.2mm.

9. A power distribution metering box according to any one of claims 1 to 6, characterized in that, The concealed wire groove is connected to the metering box body by fasteners.

10. A power distribution metering box according to any one of claims 1 to 6, characterized in that, The switch area is connected to miniature circuit breakers and molded case circuit breakers.

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