Three-phase laminated busbar

Abstract

The utility model discloses a three -phase laminated bus, including three -phase incoming line bus and three -phase outgoing line bus, three -phase incoming line bus all includes incoming line main part, and the both ends of incoming line main part are equipped with power side terminal and incoming line ammeter side terminal respectively, and the incoming line main part is located different plane respectively, and the most outside of incoming line main part between and incoming line main part all is equipped with insulating layer, three -phase outgoing line bus all includes outgoing line main part, and the both ends of outgoing line main part are equipped with load side terminal and outgoing line ammeter side terminal respectively, and the outgoing line main part is located different plane respectively, and the most outside of outgoing line main part between and outgoing line main part all is equipped with insulating layer, power side terminal all is located same installation plane, and load side terminal all is located same installation plane, and incoming line ammeter side terminal and outgoing line ammeter side terminal all are located same installation plane. The utility model can greatly shorten electric energy meter wiring time, has reduced labor intensity, avoided phase sequence wrong connection simultaneously, guaranteed the absolute correctness of wiring.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter wiring technology, specifically to a three-phase laminated busbar. Background Technology

[0002] An electricity meter box is a special box for installing electricity meters and related electrical equipment. It is a key node for electricity settlement and metering between the power system and users.

[0003] Currently, the three-phase energy meters and protection switches inside the three-phase meter box are connected by wires. This wiring method has the following problems: (1) Power workers need to spend a lot of time and effort to do the wiring, and there are cases of wiring errors. In addition, the wiring wires of the three-phase circuit are relatively dense, which leads to the problem of complicated wiring inside the meter box. The unreasonable layout of electrical appliances inside the meter box will further amplify this problem; (2) A large number of electrical connections inside the meter box are connected by wires and terminals. Over time, the terminal gaskets and screws are prone to loosening or corrosion, which will cause increased contact resistance and local overheating, posing a potential safety hazard.

[0004] In view of this, there is an urgent need to design a more reasonable and reliable wiring structure to solve the electrical wiring problems existing in current three-phase energy meters. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a three-phase stacked busbar, comprising a three-phase incoming busbar and a three-phase outgoing busbar. The three-phase incoming busbar includes A, B, C, and N-phase incoming busbars, and the three-phase outgoing busbar includes A, B, C, and N-phase outgoing busbars. Each of the three-phase incoming busbars includes an incoming main body, with power supply side terminals and meter side terminals respectively provided at both ends of the incoming main body. The incoming main bodies are located on different planes, and an insulating layer is provided between the incoming main bodies and on the outermost side of each incoming main body. Each of the three-phase outgoing busbars includes an outgoing main body, with load side terminals and meter side terminals respectively provided at both ends of the outgoing main body. The outgoing main bodies are located on different planes, and an insulating layer is provided between the outgoing main bodies and on the outermost side of each outgoing main body. The power supply side terminals are all located on the same mounting plane, the load side terminals are all located on the same mounting plane, and the meter side terminals and the meter side terminals are all located on the same mounting plane.

[0006] In one possible implementation, an inlet bend is connected between the power supply side terminal and the inlet main body, and an outlet bend is connected between the load side terminal and the outlet main body.

[0007] In one possible implementation, the outer periphery of the incoming line body is covered with an insulating film, or an insulating plate is provided on the outer side of the incoming line body; the outer periphery of the outgoing line body is covered with an insulating film, or an insulating plate is provided on the outer side of the outgoing line body.

[0008] In one possible implementation, the incoming line body and the outgoing line body are located on different planes, or a portion of the incoming line body and a portion of the outgoing line body are located on different planes.

[0009] In one possible implementation, there are overlapping portions between the incoming main body sections and between the outgoing main body sections.

[0010] In one possible implementation, a clearance interval is provided between the incoming line body and the outgoing line body.

[0011] In one possible implementation, a separation gap is provided between the power supply side terminals and a separation gap is provided between the load side terminals.

[0012] In one possible implementation, the incoming meter side terminals and the outgoing meter side terminals are arranged alternately.

[0013] In one possible implementation, meter connection holes are provided on both the incoming meter side terminal and the outgoing meter side terminal.

[0014] In one possible implementation, the insulating layer is a PET insulating film.

[0015] The three-phase stacked busbar of this technical solution is used as follows: the three-phase stacked busbar is installed in the three-phase meter box, the power supply side terminals of the three-phase stacked busbar are connected to the power supply side protection switch, the load side terminals of the three-phase stacked busbar are connected to the load side protection switch, and the incoming meter side terminals and outgoing meter side terminals of the three-phase stacked busbar are connected to the energy meter or energy meter connector.

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages: This technical solution uses a three-phase stacked busbar to integrate the wires that originally needed to be connected and arranged one by one into a pre-embedded standard module. The installer only needs to put the busbar into the meter box and then make bolt connections on several fixed terminal planes (power supply side, load side, and meter side). This greatly shortens the wiring time and reduces labor intensity. The terminal positions of the three-phase stacked busbar are fixed, which fundamentally avoids common human wiring errors such as incorrect phase sequence connection and reversed live and neutral wire connection, ensuring the absolute correctness of the wiring.

[0017] The layered design eliminates the problems of messy, crossed, and tangled wire bundles in traditional wiring methods, making the inside of the meter box neat and orderly, improving space utilization, standardizing the layout of components such as protective switches and energy meters in the meter box, making the design more reasonable, and making the wiring clear at a glance during maintenance.

[0018] This technical solution features a three-phase laminated busbar with a large contact area, uniform pressure, and precise control at the terminals. The connection point resistance is low and stable. Compared with conductors of the same cross-sectional area, it has a larger heat dissipation area, stronger current carrying capacity, and lower temperature rise. The laminated structure makes the current path clearer and the magnetic and thermal fields more uniformly distributed. The insulation layers between the main body of the busbar and the outermost layer provide reliable and uniform phase-to-phase and phase-to-ground insulation. Attached Figure Description

[0019] Figure 1 This is a perspective view of a three-phase stacked busbar according to an embodiment of the present invention.

[0020] Figure 2 This is a perspective view of the three-phase stacked busbar after the insulation layer has been removed, according to an embodiment of this utility model.

[0021] Figure 3 This is a perspective view of the three-phase incoming busbar according to an embodiment of the present utility model.

[0022] Figure 4 This is a perspective view of the three-phase outgoing busbar according to an embodiment of the present utility model.

[0023] Figure 5 This is a schematic cross-sectional view of the three-phase stacked busbar according to an embodiment of the present invention. Detailed Implementation

[0024] 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.

[0025] Combined with appendix Figure 1 To be continued Figure 5This utility model provides a three-phase stacked busbar, comprising a three-phase incoming busbar 1 and a three-phase outgoing busbar 2. The three-phase incoming busbar 1 includes an A-phase incoming busbar 11, a B-phase incoming busbar 12, a C-phase incoming busbar 13, and an N-phase incoming busbar 14. The three-phase outgoing busbar 2 includes an A-phase outgoing busbar 21, a B-phase outgoing busbar 22, a C-phase outgoing busbar 23, and an N-phase outgoing busbar 24. Each of the three-phase incoming busbars 1 includes an incoming main body 15, with power supply side terminals 16 and incoming meter side terminals 17 at both ends. The incoming main bodies 15 are located on different planes. Insulation layer 3 is provided between the main body parts 15 and on the outermost side of the incoming main body part 15; each of the three-phase outgoing busbars 2 includes an outgoing main body part 25, and the two ends of the outgoing main body part 25 are respectively provided with load side terminal 26 and outgoing meter side terminal 27. The outgoing main body parts 25 are located on different planes, and insulation layer 3 is provided between the main body parts 25 and on the outermost side of the outgoing main body part 25; the power supply side terminal 16 is located on the same mounting plane, the load side terminal 26 is located on the same mounting plane, and the incoming meter side terminal 17 and the outgoing meter side terminal 27 are located on the same mounting plane.

[0026] The three-phase stacked busbar in this embodiment is used as follows: the three-phase stacked busbar is installed in the three-phase meter box, the power supply side terminal 16 of the three-phase stacked busbar is connected to the power supply side protection switch, the load side terminal 26 of the three-phase stacked busbar is connected to the load side protection switch, and the incoming meter side terminal 17 and the outgoing meter side terminal 27 of the three-phase stacked busbar are connected to the energy meter or the energy meter connector.

[0027] In this embodiment, the three-phase stacked busbar integrates the wires that originally needed to be connected and arranged one by one into a pre-embedded standard module. The installer only needs to put the busbar into the meter box as a whole, and then make bolt connections on several fixed terminal planes (power supply side, load side, meter side). This greatly shortens the wiring time and reduces the labor intensity. The terminal positions of the three-phase stacked busbar are fixed, which fundamentally avoids common human wiring errors such as incorrect phase sequence connection and reversed live and neutral wire connection, and ensures the absolute correctness of the wiring.

[0028] In this embodiment, the stacked design of the three-phase stacked busbars is as follows: the incoming main body 15 of the A-phase incoming busbar 11, the B-phase incoming busbar 12, the C-phase incoming busbar 13, and the N-phase incoming busbar 14 are arranged in layers, and the insulation layer 3 is provided between each phase incoming busbar and on the outermost incoming busbar; the incoming main body 25 of the A-phase outgoing busbar 21, the B-phase outgoing busbar 22, the C-phase outgoing busbar 23, and the N-phase outgoing busbar 24 are arranged in layers, and the insulation layer 3 is provided between each phase outgoing busbar and on the outermost outgoing busbar. This stacked design eliminates the problems of messy, crossed, and tangled wire bundles in traditional wiring methods, making the inside of the meter box neat and orderly, improving space utilization, standardizing the layout of components such as protection switches and energy meters within the meter box, making the design more reasonable, and making the wiring clear at a glance during maintenance.

[0029] In this embodiment, as shown in the appendix Figure 3 and attached Figure 4 As shown, an inlet bend 18 is connected between the power supply side terminal 16 and the inlet main body 15, and an outlet bend 28 is connected between the load side terminal 26 and the outlet main body 25. The inlet bend 18 and the outlet bend 28 serve to unify the mounting planes of each power supply side terminal 16 and each load side terminal 26.

[0030] In this embodiment, as shown in the appendix Figure 5 As shown, an inlet insulating plate 19 is provided on the outer side of the inlet main body 15, and an outlet insulating plate 29 is provided on the outer side of the outlet main body 25. In another embodiment, the outer periphery of the inlet main body 15 is covered with an insulating film, and the outer periphery of the outlet main body 25 is covered with an insulating film. Insulating plates and insulating films are two different methods of insulating the busbar main body from the outside environment.

[0031] In this embodiment, as shown in the appendix Figure 1 and attached Figure 5 As shown, the incoming main body 15 and the outgoing main body 25 are located on different planes, that is, the incoming main body 15 of the A-phase incoming busbar 11, the B-phase incoming busbar 12, the C-phase incoming busbar 13, and the N-phase incoming busbar 14 are all located on different planes as the outgoing main body 25 of the A-phase outgoing busbar 21, the B-phase outgoing busbar 22, the C-phase outgoing busbar 23, and the N-phase outgoing busbar 24.

[0032] In another embodiment, some of the incoming main body 15 and some of the outgoing main body 25 are located on different planes. For example, the incoming main body 15 of the N-phase incoming busbar 14 and the outgoing main body 25 of the N-phase outgoing busbar 24 are located on the same plane, while the main bodies of the other phase busbars are not located on the same plane.

[0033] In this embodiment, as shown in the appendix Figure 2 To be continued Figure 4 As shown, there is an overlapping portion between the incoming main body 15 of the three-phase incoming busbar 1 and between the outgoing main body 25 of the three-phase outgoing busbar 2.

[0034] In this embodiment, as shown in the appendix Figure 1 As shown, a clearance interval 4 is provided between the incoming main body 15 and the outgoing main body 25 to reduce the material used in the stacked busbar and at the same time provide clearance space for the inside of the energy meter.

[0035] In this embodiment, as shown in the appendix Figure 3 As shown, a power-side separation gap 5 is provided between the power-side terminals 16; as attached Figure 4 As shown, a separation gap 6 is provided between the load-side terminals 26.

[0036] In this embodiment, as shown in the appendix Figure 1 and attached Figure 2 As shown, the incoming meter side terminal 17 and the outgoing meter side terminal 27 are arranged alternately to achieve quick connection with the electricity meter or electricity meter connector.

[0037] In this embodiment, as shown in the appendix Figure 3 and attached Figure 4 As shown, the incoming meter side terminal 17 has a meter connection hole 110, and the outgoing meter side terminal 27 has a meter connection hole 210.

[0038] In this embodiment, the insulating layer 3 is a PET insulating film.

[0039] In this embodiment, the three-phase laminated busbar has a large contact area, uniform pressure, and precise control when wiring at the terminals. The connection point resistance is low and stable. Compared with conductors of the same cross-sectional area, it has a larger heat dissipation area, stronger current carrying capacity, and lower temperature rise. The laminated structure makes the current path clearer and the magnetic field and thermal field distribution more uniform. The insulation layer 3 between the main body of the busbar and the outermost layer provides reliable and uniform phase-to-phase and phase-to-ground insulation.

[0040] 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 three-phase laminated busbar, characterized in that, The system includes three-phase incoming busbars and three-phase outgoing busbars. The three-phase incoming busbars include A, B, C, and N-phase incoming busbars, and the three-phase outgoing busbars include A, B, C, and N-phase outgoing busbars. Each of the three-phase incoming busbars includes an incoming main body, with power supply side terminals and incoming meter side terminals respectively at both ends. The incoming main bodies are located on different planes, and an insulating layer is provided between the incoming main bodies and on the outermost side of each incoming main body. Each of the three-phase outgoing busbars includes an outgoing main body, with load side terminals and outgoing meter side terminals respectively at both ends. The outgoing main bodies are located on different planes, and an insulating layer is provided between the outgoing main bodies and on the outermost side of each outgoing main body. The power supply side terminals are all located on the same mounting plane, the load side terminals are all located on the same mounting plane, and the incoming meter side terminals and the outgoing meter side terminals are all located on the same mounting plane.

2. The three-phase laminated busbar according to claim 1, characterized in that, An inlet bend is connected between the power supply side terminal and the inlet main body, and an outlet bend is connected between the load side terminal and the outlet main body.

3. A three-phase laminated busbar according to claim 1, characterized in that, The outer periphery of the inlet main body is covered with an insulating film, or an insulating plate is provided on the outer side of the inlet main body; the outer periphery of the outlet main body is covered with an insulating film, or an insulating plate is provided on the outer side of the outlet main body.

4. A three-phase laminated busbar according to claim 1, characterized in that, The incoming line main body and the outgoing line main body are located on different planes, or a portion of the incoming line main body and a portion of the outgoing line main body are located on different planes.

5. A three-phase laminated busbar according to any one of claims 1 to 4, characterized in that, There are overlapping portions between the incoming main body sections and between the outgoing main body sections.

6. A three-phase laminated busbar according to any one of claims 1 to 4, characterized in that, A clearance interval is provided between the incoming line main body and the outgoing line main body.

7. A three-phase laminated busbar according to any one of claims 1 to 4, characterized in that, A separation gap is provided between the power supply side terminals and a separation gap is provided between the load side terminals.

8. A three-phase laminated busbar according to any one of claims 1 to 4, characterized in that, The terminals on the incoming meter side and the terminals on the outgoing meter side are arranged alternately.

9. A three-phase laminated busbar according to any one of claims 1 to 4, characterized in that, Both the incoming meter side terminal and the outgoing meter side terminal are provided with meter connection holes.

10. A three-phase laminated busbar according to any one of claims 1 to 4, characterized in that, The insulating layer is a PET insulating film.

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