Busbar assembly for power distribution equipment and power distribution equipment

Abstract

The embodiment of the utility model provides a busbar assembly for power distribution equipment and the power distribution equipment. The busbar assembly includes a housing coupled to a bracket of a power distribution device and including a plurality of through holes disposed toward the bracket; a plurality of busbars disposed within the housing, and each of the plurality of busbars includes: an extension portion adapted to extend in an arrangement direction; the plurality of contact pins are arranged in the arrangement direction and coupled to the first side, in the vertical direction perpendicular to the arrangement direction, of the extension part, and the plurality of contact pins penetrate through the plurality of through holes respectively and extend towards the functional module; and a wiring portion coupled to the extension portion; and a plurality of power supply cables coupled to the wiring portion. Therefore, the convenience of connection between the bus bar and the function module can be improved, and the installation efficiency of the power distribution equipment is further improved.

Description

Technical Field

[0001] The exemplary embodiments disclosed herein generally relate to the field of electrical equipment, and particularly to busbar assemblies and power distribution equipment for power distribution equipment. Background Technology

[0002] Busbars, as core conductors for collecting, distributing, and transmitting electrical energy in power systems, are widely used in switchboards, substations, and new energy equipment. They can distribute and manage power to ensure the electrical safety of electrical equipment during use. However, current busbars have complex connection structures with functional modules, which hinders rapid on-site commissioning and installation. Utility Model Content

[0003] In a first aspect of this disclosure, a busbar assembly for a power distribution device is provided. The busbar assembly includes: a housing, a bracket coupled to the power distribution device, and including a plurality of through holes arranged toward the bracket; a plurality of busbars arranged within the housing, each busbar including: an extension adapted to extend along an arrangement direction; a plurality of pins arranged along the arrangement direction and coupled to a first side of the extension in a vertical direction perpendicular to the arrangement direction, the pins respectively passing through the plurality of through holes and extending toward a functional module of the power distribution device; a wiring portion coupled to the extension; and a plurality of power supply cables coupled to the wiring portion.

[0004] In some embodiments, the plurality of busbars includes a first busbar and a second busbar, the first busbar and the second busbar are arranged in a vertical direction, and a plurality of pins of the second busbar correspond to at least a portion of a plurality of pins of the first busbar and are aligned in a vertical direction.

[0005] In some embodiments, the plurality of busbars includes a plurality of second busbars extending along an arrangement direction.

[0006] In some embodiments, the busbar assembly further includes a connecting piece disposed between the wiring portions of two adjacent second busbars and electrically connected to the two second busbars respectively.

[0007] In some embodiments, the busbar assembly further includes a body cover plate disposed on the side of the housing opposite to the functional module and adapted to at least partially shield the extensions of a plurality of busbars and a plurality of pins.

[0008] In some embodiments, the busbar assembly further includes an operation cover plate disposed on the side of the housing away from the functional module and arranged vertically with the main cover plate, the operation cover plate being adapted to at least partially cover the wiring portions of the plurality of busbars.

[0009] In some embodiments, the wiring portion, the plurality of pins, and the extension portion are integrally formed.

[0010] In some embodiments, the busbar assembly further includes terminals that partially surround the end of the power supply cable and are coupled to the wiring portion.

[0011] In some embodiments, the terminals and the wiring portion are secured by fasteners.

[0012] By installing multiple busbars within a housing, with each busbar's pins passing through multiple through-holes in the housing and extending towards the functional modules of the power distribution equipment, the pins can be inserted into the corresponding wiring terminals of the functional modules after the modules are installed within the power distribution equipment, thus achieving electrical connection. This improves the ease of connecting the busbars to the functional modules, thereby increasing the installation efficiency of the power distribution equipment. Furthermore, the busbars are connected and fixed to the power supply cables via terminals, allowing the power supply cables to be connected to the power distribution equipment in various outgoing configurations, thereby enhancing the flexibility of installation in different environments.

[0013] In a second aspect of this disclosure, a power distribution device is provided. The power distribution device includes: a support frame; a plurality of functional modules arranged on the operating side of the support frame and slidably connected to the support frame; and a busbar assembly according to the first aspect of this disclosure, arranged on the wiring side of the support frame and electrically connected to the plurality of functional modules.

[0014] It should be understood that the content described in this content section is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0015] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0016] Figure 1 A schematic diagram of the overall structure of a power distribution device according to some embodiments of the present disclosure is shown;

[0017] Figure 2 A schematic diagram of the overall structure of a busbar assembly according to some embodiments of the present disclosure is shown;

[0018] Figure 3 A front structural schematic diagram of a busbar assembly according to some embodiments of the present disclosure is shown;

[0019] Figure 4 A schematic diagram of the rear structure of a busbar assembly according to some embodiments of the present disclosure is shown;

[0020] Figure 5An exploded view of a busbar assembly according to some embodiments of the present disclosure is shown; and

[0021] Figure 6 A cross-sectional view of a busbar assembly according to some embodiments of the present disclosure is shown. Detailed Implementation

[0022] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0023] It should be noted that the headings of any section / subsection provided herein are not limiting. Various embodiments are described throughout this document, and embodiments of any type may be included under any section / subsection. Furthermore, embodiments described in any section / subsection may be combined in any way with any other embodiments described in the same section / subsection and / or different sections / subsections.

[0024] In the description of embodiments of this disclosure, the term "comprising" and similar terms should be understood as open-ended inclusion, i.e., "including but not limited to". The term "based on" should be understood as "at least partially based on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The term "some embodiments" should be understood as "at least some embodiments". Other explicit and implicit definitions may also be included below. The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0025] As briefly mentioned earlier, with the continuous development of electrical technology, the number of electrical devices and the power supply requirements for these devices are constantly being upgraded. Traditional power distribution equipment, such as busbars, presents complex installation and replacement processes when dealing with a large number of electrical devices. For example, connecting circuit breakers to busbars using traditional busbars is cumbersome, thus affecting the efficiency of on-site installation and maintenance.

[0026] The busbar assembly and power distribution equipment provided in this disclosure solve, or at least partially solve, the aforementioned problems and other potential problems existing in conventional solutions. According to some embodiments of the busbar assembly of this disclosure, multiple busbars are installed within a housing, with multiple pins of the multiple busbars passing through multiple through holes in the housing and extending towards the functional modules of the power distribution equipment. In this manner, after the functional modules are installed into the power distribution equipment, the pins can be inserted into the corresponding sockets on the wiring side of the functional module and electrically connected to the functional module. This improves the ease of connecting the busbars to the functional modules, thereby improving the installation efficiency of the power distribution equipment.

[0027] Figure 1 A schematic diagram of the overall structure of a power distribution device according to some embodiments of the present disclosure is shown. Figure 1 As shown, the power distribution equipment generally includes a bracket 7, multiple functional modules 8 arranged within the bracket 7, and a busbar assembly arranged on the wiring side of the bracket 7. The functional modules 8 are adapted to slide from the operating side of the bracket 7 along the installation direction Z towards the wiring side of the bracket 7, and are fixed to the bracket 7 after entering it. During the sliding of the functional modules 8 into the bracket 7 along the installation direction Z, the busbar assembly arranged on the wiring side of the bracket 7 can be electrically connected to the multiple functional modules 8. Thus, the busbar assembly can supply power to the functional modules 8.

[0028] Figure 2 A schematic diagram of the overall structure of a busbar assembly according to some embodiments of the present disclosure is shown. Figure 3 A front structural schematic diagram of a busbar assembly according to some embodiments of the present disclosure is shown. Figure 4 A schematic diagram of the rear structure of a busbar assembly according to some embodiments of the present disclosure is shown. Figures 2 to 4 As shown, the busbar assembly generally includes a housing 1, multiple busbars arranged inside the housing 1, and power supply cables coupled to the multiple busbars respectively.

[0029] The busbar includes an extension 21, a plurality of pins 22 coupled to the extension 21, and a wiring portion 23. The extension 21 is arranged to extend along an arrangement direction X in which the plurality of functional modules 8 are arranged. The plurality of pins 22 are arranged on a first side of the extension 21 along a vertical direction Y perpendicular to the arrangement direction X. The plurality of pins 22 are arranged along the arrangement direction X, with a predetermined interval between adjacent pins 22 so that the plurality of pins 22 can be aligned with the plurality of functional modules 8 in an installation direction Z. The wiring portion 23 is coupled to the extension 21 and electrically connected to the extension 21. In some embodiments, the wiring portion 23 may be coupled to a second side of the extension 21 opposite to the pins 22. In some embodiments, the functional module 8 may include at least one of a circuit breaker unit, a gateway unit, and a solid-state switch unit.

[0030] During the installation of the functional module 8 from the operating side of the bracket 7 into the bracket 7, the pins 22 of the busbar can be inserted into the corresponding interfaces of the installation module, thereby allowing the busbar to supply power to the functional module 8. In some embodiments, the wiring portion 23, the plurality of pins 22, and the extension portion 21 can be integrally formed. For example, they can be formed by processes such as shearing and bending of a profile.

[0031] Figure 5 An exploded view of a busbar assembly according to some embodiments of the present disclosure is shown. Figure 6 A cross-sectional view of a busbar assembly according to some embodiments of the present disclosure is shown. Figure 5 and Figure 6 As shown, in some embodiments, the busbar assembly includes a first busbar 201 and a second busbar 202. The first busbar 201 and the second busbar 202 are arranged along the vertical direction Y, and a plurality of pins 22 of the first busbar 201 are respectively aligned with at least a portion (e.g., a first portion) of a plurality of pins 22 of the second busbar 202 along the vertical direction Y.

[0032] Therefore, the two sets of pins 22 aligned in the vertical Y direction in the first busbar 201 and the second busbar 202 can be simultaneously coupled to the same functional module 8 and supply power to the functional module 8. For example, the first busbar 201 and the second busbar 202 can be used as the neutral wire and the live wire of the functional module 8, respectively, to supply power to the functional module 8.

[0033] In some embodiments, multiple second busbars 202 may be provided. The multiple second busbars 202 extend along the arrangement direction X, and multiple pins 22 on the multiple second busbars 202 correspond to multiple pins 22 at different positions on the first busbar 201. Therefore, the power supply of the corresponding operating module can be controlled by controlling the power supply of the multiple second busbars 202 respectively.

[0034] For example, a user can disconnect the power supply to a second busbar 202 located at one end of the X-direction of the distribution. This disconnects the corresponding operating module (e.g., a circuit breaker). At this time, the functional modules 8 in other locations of the power distribution equipment (e.g., gateways) can still continue to operate normally.

[0035] In some embodiments, a connecting piece 3 is further provided between two adjacent second busbars 202. The two ends of the connecting piece 3 are respectively coupled to the wiring portions 23 of the two adjacent second busbars 202. The connecting piece enables electrical connection between two adjacent busbars, allowing the two second busbars 202 to be powered by a single power supply cable. In this way, users can connect second busbars 202 that do not require separate power supplies according to actual site requirements. This simplifies the arrangement of power supply cables within the busbar assembly and reduces wiring costs.

[0036] In some embodiments, the busbar assembly further includes a main cover plate 4, disposed on the side of the housing 1 opposite to the functional module 8, and adapted to cover the busbar extension 21 and multiple pins 22. The main cover plate 4 is fixed to the housing 1 by means of fasteners, snap-fit ​​connections, or the like. The main cover plate 4 can provide support for the busbar extension 21 and multiple pins 22 to limit the pins 22 during insertion into the functional module 8, reduce busbar deformation, and facilitate smooth insertion of the pins 22 into the functional module 8. In addition, the main cover plate 4 can also provide protection for the busbar and improve the electrical safety of the busbar assembly.

[0037] In some embodiments, the busbar assembly further includes an operation cover 5, which is disposed on the side of the housing 1 opposite to the functional module 8 and is used to cover the wiring portion 23 of the busbar. The operation cover 5 can be connected to the housing 1 by a snap-fit ​​device so that it can be quickly disassembled when the user needs to adjust the wiring of the busbar assembly. In some embodiments, the operation cover 5 and the main cover 4 can be two independent components; in some other embodiments, the operation cover 5 and the main cover 4 can also be integrally formed.

[0038] In some embodiments, a terminal block 6 is provided at the end of the power supply cable facing the connection portion 23. One end of the terminal block 6 is sleeved on the end of the power supply cable, and the other end is coupled to the connection portion 23 of the busbar. In some embodiments, the terminal block 6 and the connection portion 23 of the busbar are connected and fixed by fasteners such as bolts and nuts.

[0039] Specifically, after the bolt passes through the terminal block 6 and the wiring portion 23 of the busbar, it engages with the nut threadedly. The force between the bolt and the nut clamps the terminal block 6 and the wiring portion 23. This ensures a stable and reliable connection between the power supply cable and the wiring portion 23 of the busbar. It should be understood that in some other embodiments, the terminal block 6 and the wiring portion 23 can also be fixed by means of snap-fit ​​connection, welding, etc.

[0040] Various implementations of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed implementations. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described implementations. The terminology used herein is chosen to best explain the principles, practical applications, or improvements to technology in the market, or to enable others skilled in the art to understand the various implementations disclosed herein.

Claims

1. A busbar assembly for an electrical distribution apparatus, the busbar assembly comprising: Comprising: a housing (1) coupled to a support (7) of the power distribution device, and comprising a plurality of through holes arranged towards the support (7); a plurality of bus bars arranged in the housing (1), and each bus bar of the plurality of bus bars comprising: an extension (21) adapted to extend along an arrangement direction (X); a plurality of pins (22) arranged along the arrangement direction (X) and coupled to a first side of the extension (21) along a vertical direction (Y) perpendicular to the arrangement direction (X), the plurality of pins (22) respectively passing through the plurality of through holes and extending towards a functional module (8) of the power distribution device; and a wiring portion (23) coupled to the extension; and a plurality of power supply cables coupled to the wiring portion (23).

2. The busbar assembly of claim 1, wherein, The plurality of bus bars comprises a first bus bar (201) and a second bus bar (202), the first bus bar (201) and the second bus bar (202) are arranged along the vertical direction (Y), and the plurality of pins (22) of the second bus bar (202) respectively correspond to at least part of the plurality of pins (22) of the first bus bar (201) and are aligned along the vertical direction (Y).

3. The busbar assembly of claim 2, wherein, The plurality of bus bars comprises a plurality of second bus bars (202), the plurality of second bus bars (202) extend along the arrangement direction (X).

4. The busbar assembly of claim 3, wherein, Further comprising: a connecting sheet (3) arranged between the wiring portions (23) of two adjacent second bus bars (202) and respectively electrically connected with the two second bus bars (202).

5. The busbar assembly of any of claims 1-4, wherein, Further comprising: a main cover plate (4) arranged on a side of the housing (1) away from the functional module (8) and adapted to at least partially shield the extensions (21) and the plurality of pins (22) of the plurality of bus bars.

6. The busbar assembly of claim 5, wherein, Further comprising: an operation cover plate (5) arranged on a side of the housing (1) away from the functional module (8) and arranged along the vertical direction (Y) with the main cover plate (4), the operation cover plate (5) is adapted to at least partially shield the wiring portions (23) of the plurality of bus bars.

7. The busbar assembly of claim 1, wherein, The wiring portion (23), the plurality of pins (22) and the extension (21) are integrally formed.

8. The busbar assembly of claim 1, wherein, Further comprising a wiring terminal (6) partially surrounding an end of the power supply cable and coupled to the wiring portion (23).

9. The busbar assembly of claim 8, wherein, The wiring terminal (6) and the wiring portion (23) are fixed by a fastener.

10. A power distribution apparatus, comprising: Comprising: a support (7); a plurality of functional modules (8) arranged on an operation side of the support (7) and in sliding connection with the support (7); and the bus bar assembly according to any one of claims 1-9 arranged on a wiring side of the support (7) and in electrical connection with the plurality of functional modules (8).

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