Wiring box for power distribution cabinet and power distribution cabinet

Abstract

The embodiment of the utility model provides a wiring box for a power distribution cabinet and the power distribution cabinet. The wiring box comprises a box body and a circuit board assembly. The box body comprises a containing cavity and a plurality of first openings, and the first openings are formed in the side wall of the box body. The circuit board assembly is arranged in the accommodating cavity and is coupled to the box body. The circuit board assembly comprises a circuit board and a plurality of network interfaces. And a network bus is arranged in the circuit board. The plurality of network interfaces are correspondingly arranged at the plurality of first openings and are coupled to the network bus. One of the plurality of network interfaces is coupled to one end of the network bus, and can be used as a network inlet. Another network interface of the plurality of network interfaces is coupled to the other end of the network bus, and can be used as a network outlet. By means of the arrangement, the circuit board assembly does not intersect with other lines in the power distribution cabinet, and installation is convenient. Meanwhile, the circuit board assembly is arranged in the box body, and the box body can play a shielding role, so that signals are prevented from being interfered.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of electrical equipment, and more particularly to a wiring box for a power distribution cabinet and a power distribution cabinet. Background Art

[0002] In order to realize intelligent monitoring and management of low-voltage distribution cabinets, some electronic components in low-voltage distribution cabinets need to communicate, such as intelligent circuit breakers, multi-function meters, environmental monitoring sensors, etc., in order to exchange data in real time, monitor operating status and perform remote control. In conventional low-voltage distribution cabinets, these electronic components are connected separately through communication cables to achieve signal transmission. However, the wiring of communication cables in low-voltage distribution cabinets is relatively complicated, and they often need to cross with other cables. The installation is complicated and easily affected by signal interference, which affects reliability. Utility Model Content

[0003] An object of the embodiments of the present disclosure is to provide a wiring box for a power distribution cabinet and a power distribution cabinet to at least partially solve the above-mentioned problems and other potential problems.

[0004] In the first aspect of the present disclosure, a wiring box for a power distribution cabinet is provided. The wiring box comprises: a box body, comprising: a receiving cavity; and a plurality of first openings, arranged on the side wall of the box body and connected to the receiving cavity; and a circuit board assembly, arranged in the receiving cavity and coupled to the box body, and comprising: a circuit board, comprising a network bus; and a plurality of network interfaces, correspondingly arranged at the plurality of first openings and coupled to the network bus, one of the plurality of network interfaces is coupled to one end of the network bus to serve as a network inlet, and another of the plurality of network interfaces is coupled to the other end of the network bus to serve as a network outlet.

[0005] In some embodiments, the network bus includes a first network bus and a second network bus, and the plurality of network interfaces include a first group of network interfaces coupled to the first network bus and a second group of network interfaces coupled to the second network bus.

[0006] In some embodiments, at least one additional circuit board assembly is further disposed in the box body, and the at least one additional circuit board assembly is connected in series with the circuit board assembly via a network cable.

[0007] In some embodiments, the plurality of first openings are arranged in two parallel rows, and along the extension direction of the box body, positions of the two rows of first openings are at least partially staggered.

[0008] In some embodiments, the box body further includes a plurality of second openings, the circuit board further includes a power bus, and the circuit board assembly further includes: a plurality of power interfaces respectively disposed at the plurality of second openings and coupled to the power bus, wherein one of the plurality of power interfaces is coupled to one end of the power bus, and another one of the plurality of power interfaces is coupled to the other end of the power bus.

[0009] In some embodiments, the power bus includes a first power bus and a second power bus, and the plurality of power interfaces includes a first group of power interfaces coupled to the first power bus and a second group of power interfaces coupled to the second power bus.

[0010] In some embodiments, the first group of network interfaces and the second group of network interfaces are disposed on the same side or different sides of the box body, and / or the first group of power interfaces and the second group of power interfaces are disposed on the same side or different sides of the box body.

[0011] In some embodiments, one side of the box body close to the plurality of network interfaces and the plurality of power interfaces includes: a first part provided with the plurality of first openings; and a second part provided with the plurality of second openings, and the second part and the first part are arranged in a stepped manner.

[0012] In some embodiments, a connecting portion is provided at an edge of the box body along its extending direction.

[0013] In some embodiments, the wiring box further includes: a plurality of support members disposed on a side of the circuit board away from the plurality of network interfaces and coupled to the circuit board and the box body to limit the position of the circuit board.

[0014] In a second aspect of the present disclosure, a power distribution cabinet is provided. The power distribution cabinet includes: a cabinet body; and a wiring box according to the first aspect of the present disclosure, wherein the wiring box is disposed in the cabinet body and coupled to the cabinet body.

[0015] In some embodiments, the cabinet body includes a support frame, and the wiring box is coupled to the support frame.

[0016] In an embodiment of the present disclosure, a wiring box includes a box body and a circuit board assembly. The box body includes a receiving cavity and a plurality of first openings. The plurality of first openings are provided on one side of the box body and communicate with the receiving cavity. The circuit board assembly is disposed in the receiving cavity and coupled to the box body. The circuit board assembly includes a circuit board and a plurality of network interfaces. A network bus is provided in the circuit board. The plurality of network interfaces are correspondingly disposed at the plurality of first openings and coupled to the network bus. One of the plurality of network interfaces is coupled to one end of the network bus and can be used as a network inlet. Another one of the plurality of network interfaces is coupled to the other end of the network bus and can be used as a network outlet. With this arrangement, the circuit board assembly can replace a plurality of communication cables in a power distribution cabinet and transmit signals between different electronic components in the power distribution cabinet. The circuit board assembly does not cross with other lines in the power distribution cabinet, which is convenient for installation. At the same time, the circuit board assembly is disposed in the box body, and the box body can play a shielding role to avoid signal interference.

[0017] It should be understood that the content described in this part is not intended to define the key features or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] With reference to the accompanying drawings and the following detailed description, the above and other features, advantages, and aspects of the embodiments of the present disclosure will become more apparent. In the drawings, the same or similar reference numerals denote the same or similar elements, where:

[0019] Figure 1 A perspective view of a wiring box for a power distribution cabinet according to an embodiment of the present disclosure is shown;

[0020] Figure 2 An exploded view of a distribution box for a power distribution cabinet according to an embodiment of the present disclosure is shown; and

[0021] Figure 3 A perspective view of a power distribution cabinet according to an embodiment of the present disclosure is shown.

[0022] DESCRIPTION OF REFERENCE NUMERALS:

[0023] 100, wiring box;

[0024] 10, box body; 101, first part; 102, second part; 11, first opening; 12, second opening; 13, receiving cavity; 14, connecting part;

[0025] 20, circuit board assembly; 21, circuit board; 22, network interface; 23, power interface;

[0026] 30, support member;

[0027] 200, Cabinet; 210, Support Frame. Detailed Implementation Manner

[0028] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0029] The term "including" and its variants used herein mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The term "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0030] As described above, in a conventional low-voltage power distribution cabinet, these electronic components can be respectively connected through communication cables to achieve signal transmission. However, the communication cable wiring in the low-voltage power distribution cabinet is relatively complex, often needs to cross other cables, the installation process is complex and is easily affected by signal interference, thus affecting reliability.

[0031] Embodiments of the present disclosure provide a wiring box 100 for a power distribution cabinet and a power distribution cabinet. In this wiring box 100, a circuit board assembly 20 and a box body 10 are provided, and the circuit board assembly 20 is arranged in the box body 10. The circuit board assembly 20 includes a circuit board 21 and a plurality of network interfaces 22, and the plurality of network interfaces 22 are coupled to the network bus of the circuit board 21. With this arrangement, the circuit board assembly 20 can replace a plurality of communication cables in the power distribution cabinet and can transmit signals between different electronic components in the electrical cabinet. The circuit board assembly 20 will not cross with other lines in the power distribution cabinet, making the installation more convenient. At the same time, the circuit board assembly 20 is arranged in the box body 10, which can play a shielding role, thereby avoiding data signals from being interfered. The principle of the present disclosure will be described in detail below in combination with Figures 1 to 3 to describe the principle of the present disclosure in detail.

[0032] As Figure 1 and Figure 2 shown, the wiring box 100 includes a box body 10, and a receiving cavity 13 is arranged in the box body 10. The receiving cavity 13 can be used to place the circuit board assembly 20. A plurality of first openings 11 are provided on one side of the box body 10, and these first openings 11 are directly communicated with the receiving cavity 13, which can provide a passage for the network interfaces 22 to the outside.

[0033] The circuit board assembly 20 is located within the accommodation cavity 13 and is mounted on the box body 10. In this way, the position of the circuit board assembly 20 and the box body 10 is fixed, ensuring the stability of the position of the circuit board assembly 20. The circuit board assembly 20 includes a circuit board 21 and a plurality of network interfaces 22, and a network bus is integrated on the circuit board 21. The network bus is the main artery for data transmission and can support data communication between multiple network interfaces 22.

[0034] As Figure 1 and Figure 2 shown, a plurality of network interfaces 22 are correspondingly arranged at a plurality of first openings 11, and the plurality of network interfaces 22 are coupled to the network bus. An external network plug can be connected to the network interface 22 at the first opening 11 to achieve signal transmission. One of the plurality of network interfaces 22 is coupled to one end of the network bus to serve as a network inlet. Another one of the plurality of network interfaces 22 is coupled to the other end of the network bus to serve as a network outlet. With this arrangement, the plurality of network interfaces 22 and the circuit board 21 form a bus topology. In a bus topology, data is transmitted on the network bus, and all devices connected to the network bus can receive the data, but usually only the target device will actually process the data, while other devices will ignore the non-destination data.

[0035] The network bus on the circuit board 21 serves as a central transmission channel, providing a shared communication link for the plurality of network interfaces 22 connected thereto. Each network interface 22 represents a network node and can perform data exchange through the network bus.

[0036] With this arrangement, the circuit board assembly 20 replaces multiple communication cables in a traditional power distribution cabinet, simplifies the wiring structure, can avoid communication line crossovers, and reduces the possibility of electromagnetic interference, contributing to improving the stability of signal transmission. In addition to providing physical support, the box body 10 can effectively block external electromagnetic interference, protecting the internal sensitive circuits and data transmission from the influence of external environmental factors, thereby ensuring communication quality.

[0037] In some embodiments, as Figure 1 and Figure 2 shown, the circuit board assembly 20 may include multiple mutually redundant network buses. In this way, the reliability and stability of network communication can be improved. When the primary network connection fails, the redundant network cables can take over the work, ensuring that the communication of the monitoring system, automation control system, or data acquisition system is not interrupted, thereby maintaining the normal operation of the power distribution cabinet and the electrical equipment it controls. In some cases, the redundant network cables can not only be used as a backup but also achieve load balancing of network traffic, that is, distribute the traffic on two or more links to avoid overloading a single link.

[0038] As an example, as Figure 2 shown, a first network bus and a second network bus are integrated on the circuit board 21. The multiple network interfaces 22 are divided into a first group of network interfaces and a second group of network interfaces. The first group of network interfaces 22 is coupled to the first network bus, and the second group of network interfaces 22 is coupled to the second network bus. In this way, two bus-type networks can be formed on the circuit board assembly 20.

[0039] In some embodiments, at least one additional circuit board assembly is further provided in the box body 10, and the at least one additional circuit board assembly is connected in series with the circuit board assembly 20 through a network cable.

[0040] As an example, an additional circuit board assembly is further provided in the box body 10. The network inlet of the additional circuit board assembly is connected to the network outlet of the circuit board assembly 20 through a network cable, so as to connect two bus-type topologies in series. In this way, the length of a single circuit board 21 can be reduced, avoiding the use of a long and narrow circuit board 21, thereby reducing the manufacturing difficulty of the circuit board 21.

[0041] It should be understood that any number of circuit board assemblies 20 can be provided in the wiring box 100 of the present disclosure, and the present disclosure is not intended to limit this.

[0042] In some embodiments, as Figure 1 and Figure 2 shown, the multiple first openings 11 are arranged in two juxtaposed rows, and along the extending direction of the box body 10, the positions of the two rows of first openings 11 are at least partially staggered.

[0043] As Figure 1 and Figure 2 shown, the two rows of first openings 11 respectively correspond to the first group of network interfaces and the second group of network interfaces. Staggering the network interfaces 22 of different groups in position can enable the installer to more easily distinguish and find the specific network interfaces 22 they need to connect, thereby improving work efficiency and reducing the risk of misoperation. Secondly, interfaces and connectors that are physically close may affect each other due to electromagnetic interference or other physical factors. By staggering the layout of the network interfaces 22, mutual interference can be reduced, thereby ensuring the stability and reliability of data transmission.

[0044] As an example, as Figure 1 and Figure 2 shown, the first group of network interfaces and the second group of network interfaces can be provided on the same side of the box body 10. In this way, it is convenient for the operator to access or unplug the communication cable.

[0045] As another example, the first set of network interfaces and the second set of network interfaces can be arranged on different sides of the box body 10. With this arrangement, firstly, the positional interference between external plugs can be reduced, and signal interference caused by the physical proximity of different network connectors can also be avoided. Secondly, distributing different types of interfaces on different sides of the device can make the internal wiring layout of the device more reasonable, and at the same time facilitate the planning and implementation of the internal heat dissipation system of the device. Moreover, separate settings for different groups of network interfaces can make it more convenient for users to access or unplug various cables, reducing the possibility of misoperation. For example, in an environment with dense cables in a power distribution cabinet, the required network interface can be quickly and accurately found and operated, improving work efficiency.

[0046] In some embodiments, as Figure 1 and Figure 2 shown, a plurality of second openings 12 are provided on one side of the box body 10, and these second openings 12 communicate with the accommodation cavity 13, which can provide a passage for the power interface 23 to the outside. The circuit board assembly 20 further includes a plurality of power interfaces 23, and a power bus is also integrated on the circuit board 21. The plurality of power interfaces 23 are respectively arranged at the plurality of second openings 12 and are coupled to the power bus. One of the plurality of power interfaces 23 is coupled to one end of the power bus to be used as a power inlet. Another one of the plurality of power interfaces 23 is coupled to the other end of the power bus to be used as a power outlet. With this arrangement, the wiring box 100 can supply power to multiple devices in the power distribution cabinet at the same time, thus simplifying the wiring structure.

[0047] In some embodiments, as Figure 1 and Figure 2 shown, the circuit board assembly 20 may include multiple redundant power buses.

[0048] As an example, as Figure 1 and Figure 2 shown, a first power bus and a second power bus are integrated on the circuit board 21, and the plurality of power interfaces 23 include a first group of power interfaces 23 and a second group of power interfaces 23. The first group of power interfaces 23 is coupled to the first power bus, and the second group of power interfaces 23 is coupled to the second power bus. In this way, even if one power line fails or is interrupted, the other power line can still continue to supply power to the system, ensuring the uninterrupted operation of the system. Secondly, the dual-power configuration can balance the load and avoid overloading of a single power supply, thereby reducing the risk of failure caused by overheating or other power-related problems. Moreover, the two power supplies can support hot swapping, that is, replacing a faulty power supply while the system is running, further improving the convenience and safety of system maintenance.

[0049] As an example, as Figure 1 and Figure 2As shown, the first set of power interfaces and the second set of power interfaces are provided on the same side of the box body 10. In this way, it is convenient for the operator to access or unplug the power cable.

[0050] As another example, the first set of power interfaces and the second set of power interfaces are provided on different sides of the box body 10. For example, distributing these power interfaces on different sides of the device can avoid the risk of all power interfaces failing simultaneously due to a single physical damage (such as fire, water immersion, or physical collision), thereby improving the stability and reliability of the overall system. Secondly, a reasonable layout helps to improve the heat flow distribution inside the device and avoid local overheating. By dispersing the power interfaces on different sides, the box body 10 can be better utilized for heat dissipation, which helps to keep the device operating within the optimal temperature range. Moreover, in a power distribution cabinet, the device usually needs to be connected to different power distribution units (PDUs) to achieve load balancing or isolate different circuits. Distributing the power interfaces on different sides of the box body 10 can simplify the management and wiring of the power cable, reducing cable crossing and entanglement.

[0051] In some embodiments, as Figure 1 and Figure 2 shown, one side of the box body 10 near the multiple network interfaces 22 and the multiple power interfaces 23 includes a first part 101 and a second part 102. The first part 101 is provided with a plurality of first openings 11, the second part 102 is provided with a plurality of second openings 12, and the second part 102 is arranged in a stepped manner with the first part 101. Using this arrangement, it is possible to better accommodate and manage various interfaces.

[0052] As Figure 1 and Figure 2 shown, there are a plurality of first openings 11 on the first part 101 for installing or exposing the multiple network interfaces 22. The second part 102 is provided with a plurality of second openings 12 for installing or exposing the multiple power interfaces 23. The second part 102 varies in height or depth relative to the first part 101, forming a stepped structure, with the two parts staggered through the height difference. The stepped design can adapt to the size differences of different interfaces. Especially when the network interfaces 22 and the power interfaces 23 are of different sizes, the stepped layout can ensure that all interfaces can be reasonably arranged. Secondly, the partitioned openings can reduce the possibility of misinsertion and speed up the installation of the cable, thereby improving the overall work efficiency.

[0053] In some embodiments, as Figure 1 and Figure 2As shown, a connecting portion 14 is provided at an edge of the box body 10 along its extending direction. The connecting portion 14 is a part of the wiring box 100 and is located at the edge position of the box body 10. With this arrangement, installers can fix the wiring box 100 inside the power distribution cabinet, thereby ensuring the stable position of the wiring box 100.

[0054] As an example, as Figure 1 and Figure 2 shown, screw holes are provided on the connecting portion 14, and the wiring box 100 can be fixed to the power distribution cabinet by bolts.

[0055] As another example, the connecting portion 14 can be installed inside the power distribution cabinet through a snap structure. For example, hooks are provided on the side wall of the power distribution cabinet, and slots are provided on the connecting portion 14, and the wiring box 100 is fixed through the cooperation of the hooks and the slots.

[0056] In some embodiments, as Figure 2 shown, the wiring box 100 further includes a plurality of support members 30. The plurality of support members 30 are provided on a side of the circuit board 21 away from the plurality of network interfaces 22, and the plurality of support members 30 are coupled to the circuit board 21 and the box body 10, and the support members 30 can limit the position of the circuit board 21.

[0057] As Figure 2 shown, four support members 30 are provided inside the box body 10. One end of each support member 30 is connected to the box body 10, and the other end of each support member 30 is connected to the circuit board 21. The circuit board 21 is fixed inside the box body 10 through the four support members 30, avoiding the change of the position of the circuit board 21, and enabling the network interfaces 22 and the power interfaces 23 to correspond to the openings on the box body 10.

[0058] In a second aspect of the present disclosure, a power distribution cabinet is provided. As Figure 3 shown, the power distribution cabinet includes a cabinet body 200 and a wiring box 100 according to the first aspect of the present disclosure. The wiring box 100 is disposed inside the cabinet body 200 and is coupled to the cabinet body 200.

[0059] As Figure 3 shown, the cabinet body 200 is a rectangular or approximately rectangular three-dimensional structure with three dimensions of length, width, and height when viewed from the outside. The three-dimensional structure is conducive to space utilization and internal layout planning. A support frame 210 is provided inside the cabinet body 200, and the support frame 210 is responsible for providing the stability and load-bearing capacity of the entire cabinet body 200. The support frame 210 is usually made of metal materials (such as steel, aluminum), and is assembled by welding, bolt connection, etc., providing an installation base point and physical support for other components inside the cabinet such as electronic devices and wiring systems. The wiring box 100 is coupled to the support frame 210, which can ensure the stable installation of the wiring box 100 inside the cabinet body 200.

[0060] The embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to technologies in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A wiring box (100) for a power distribution cabinet, characterized in that: include: The box body (10) comprises: a receiving chamber (13); and a plurality of first openings (11), arranged on the side wall of the box body (10) and communicating with the accommodating cavity (13); and A circuit board assembly (20) is disposed in the accommodating cavity (13) and coupled to the box body (10), and comprises: A circuit board (21) including a network bus; and A plurality of network interfaces (22) are correspondingly arranged at the plurality of first openings (11) and coupled to the network bus, one of the plurality of network interfaces (22) is coupled to one end of the network bus to be used as a network import, and another of the plurality of network interfaces (22) is coupled to the other end of the network bus to be used as a network export.

2. The wiring box (100) according to claim 1, characterized in that: The network bus includes a first network bus and a second network bus, and the plurality of network interfaces (22) include a first group of network interfaces coupled to the first network bus and a second group of network interfaces coupled to the second network bus.

3. The wiring box (100) according to claim 1 or 2, characterized in that: At least one additional circuit board assembly is also arranged in the box body (10), and the at least one additional circuit board assembly is connected in series with the circuit board assembly (20) via a network cable.

4. The wiring box (100) according to claim 2, characterized in that: The plurality of first openings (11) are arranged in two parallel rows, and Along the extension direction of the box body (10), the positions of the two rows of the first openings (11) are at least partially staggered.

5. The wiring box (100) according to claim 2 or 4, characterized in that: The box body (10) further comprises a plurality of second openings (12), the circuit board (21) further comprises a power bus, and the circuit board assembly (20) further comprises: A plurality of power interfaces (23) are respectively arranged at the plurality of second openings (12) and coupled to the power bus, and one of the plurality of power interfaces (23) is coupled to one end of the power bus, and another of the plurality of power interfaces (23) is coupled to the other end of the power bus.

6. The wiring box (100) according to claim 5, characterized in that: The power bus includes a first power bus and a second power bus, and the plurality of power interfaces (23) include a first group of power interfaces coupled to the first power bus and a second group of power interfaces coupled to the second power bus.

7. The wiring box (100) according to claim 6, characterized in that: The first group of network interfaces and the second group of network interfaces are arranged on the same side or different sides of the box body (10), and / or the first group of power interfaces and the second group of power interfaces are arranged on the same side or different sides of the box body (10).

8. The wiring box (100) according to claim 5, characterized in that: A side of the box body (10) close to the multiple network interfaces (22) and the multiple power interfaces (23) comprises: A first portion (101) provided with the plurality of first openings (11); and The second part (102) is provided with the plurality of second openings (12), and the second part (102) and the first part (101) are arranged in a step-like manner.

9. The wiring box (100) according to claim 1, characterized in that: A connecting portion (14) is provided at the edge of the box body (10) along its extending direction.

10. The wiring box (100) according to claim 1, characterized in that: Also includes: A plurality of support members (30) are arranged on a side of the circuit board (21) away from the plurality of network interfaces (22) and are coupled to the circuit board (21) and the box body (10) to limit the position of the circuit board (21).

11. A power distribution cabinet, characterized in that: include: Cabinet (200); as well as According to the wiring box (100) according to any one of claims 1 to 10, the wiring box (100) is arranged in the cabinet (200) and coupled to the cabinet (200).

12. The power distribution cabinet according to claim 11, characterized in that: The cabinet (200) comprises a supporting frame (210), and the wiring box (100) is coupled to the supporting frame (210).

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