A quick service fixed partition cabinet

Abstract

The utility model relates to fixed partition cabinet technical field, and disclose a kind of quick maintenance fixed partition cabinet, including split component, this split component is by the cabinet body distribution circuit of quick maintenance fixed partition cabinet is designed as vertical and horizontal partition structure, main bus system, distribution bus system, functional unit and cable connection space are mutually isolated, the cabinet body is respectively provided with first plug-in moulded case circuit breaker from top to bottom, second plug-in moulded case circuit breaker, third plug-in moulded case circuit breaker, fourth plug-in moulded case circuit breaker.The utility model quick maintenance fixed partition cabinet, safety and independence: using vertical and horizontal partition design, main bus system, distribution bus system, functional unit and cable connection space are mutually isolated, when overhauling, corresponding cubicle can be independently operated, avoid fault expansion and electric shock risk.

Description

Technical Field

[0001] This utility model relates to the field of fixed partition cabinet technology, specifically a fixed partition cabinet for quick maintenance. Background Technology

[0002] Low-voltage fixed switchgear is a type of AC low-voltage distribution cabinet with a rated operating voltage of 380V and a rated current up to 4000A. It is suitable for AC 50Hz power distribution systems and is mainly used for power conversion, distribution, and control of power, lighting, and electrical equipment in power plants, substations, factories, mines, and other power users. Low-voltage fixed switchgear stands out in the low-voltage power distribution field due to its unique design and excellent performance. It features a simple and robust structure, and is easy to install and maintain. Its core advantages lie in its simple structure and robust welded assembly, with the use of C-profile profiles ensuring a high degree of standardization of components. The heat dissipation design is also scientific, with ventilation slots at the top and bottom creating effective natural ventilation channels. Furthermore, convenient installation and maintenance are also highlights; the cabinet door is connected by hinges, and lifting rings are provided at the four corners of the top. The protection level is flexibly adjustable to meet different requirements from IP20 to IP40. However, improvements are needed in ensuring independence and safety during maintenance, and further improvements are needed in the heat dissipation effect on electrical components.

[0003] Furthermore, with technological advancements, the industry is currently promoting the standardization of cabinet structures, gradually phasing out welded designs and shifting towards assembled and pull-out structures. Simultaneously, the demand for customized services is growing, requiring companies to provide personalized solutions based on user scenarios and load characteristics. Driven by the "dual carbon" goal, energy conservation and environmental protection have become crucial directions. Companies need to reduce energy consumption by optimizing circuit design and using high-efficiency electrical components; the application of environmentally friendly materials also reduces pollution during the production process.

[0004] Therefore, there is an urgent need for a fast-maintenance fixed partition cabinet to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a quick-maintenance fixed partition cabinet to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-access fixed partition cabinet includes a partitioning assembly. This assembly isolates the main busbar system, distribution busbar system, functional units, and cable connection space by designing the cabinet's power distribution circuit as a longitudinal and transverse partition structure. The cabinet is equipped with a first pluggable molded case circuit breaker, a second pluggable molded case circuit breaker, a third pluggable molded case circuit breaker, and a fourth pluggable molded case circuit breaker from top to bottom. The first and second pluggable molded case circuit breakers... The first ammeter, the second ammeter, the third ammeter, and the fourth ammeter are respectively installed on the right side of the third and fourth pluggable molded case circuit breakers. Each of the first ammeter, the second ammeter, the third ammeter, and the fourth ammeter is equipped with an indicator light. The first current transformer, the second current transformer, the third current transformer, and the fourth current transformer are installed from top to bottom inside the cabinet. The top of the cabinet is the busbar overlap area, and the top and bottom of the cabinet are provided with heat dissipation slots for heat dissipation.

[0008] Preferably, the cabinet is an assembled structure, and the frame is assembled from C-shaped profiles.

[0009] Preferably, the horizontal busbar is placed at the top of the cabinet, using a rear or side exit method, and is connected using an adapter.

[0010] Preferably, the unit space height of the partition component is based on the height of the GCK and MNS drawers. The switch is fixedly installed. When the wiring is side-out, an adapter is generally used. The maximum allowable current for the 3-unit drawer is 800A.

[0011] Preferably, the cabinet body adopts a closed vertical busbar channel with built-in copper busbars.

[0012] Preferably, the enclosure protection level of the cabinet is available in four options: IP44, IP40, IP31, and IP30.

[0013] Compared with existing technologies, this utility model has the following advantages: This quick-maintenance fixed partition cabinet, a fixed partition low-voltage cabinet, uses a pluggable switch, installed in an independent fixed partition chamber. The switch has a pluggable structure, consisting of two parts: the switch body and the base. The base is fixed to the base plate, and the reverse side facilitates cable lead-out. The switch body can be pulled out while energized, facilitating maintenance or replacement. This structure is suitable for power output after the transformer stage. The molded case switch body and base have a large contact surface, providing stable clamping and reliable contact. The switch, busbar, primary cable, and secondary wiring all have independent spaces, ensuring good ventilation and heat dissipation. Installation, wiring, protection, and maintenance are safe and convenient.

[0014] This refers to a low-voltage switchgear with a fixed partition structure, in which each power distribution circuit is placed in a separate compartment, and the lines in each compartment do not affect each other, which is beneficial for equipment maintenance and its safety is higher than that of a fixed low-voltage switchgear. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a rear view of the quick-repair fixed partition cabinet of this utility model;

[0017] Figure 2 This is a front view of the quick-repair fixed partition cabinet of this utility model;

[0018] Figure 3 This is an internal view of the quick-repair fixed partition cabinet of this utility model;

[0019] Figure 4 This is a side view of the quick-repair fixed partition cabinet of this utility model;

[0020] Figure 5 This is a top view of the quick-repair fixed partition cabinet of this utility model;

[0021] Figure 6 This is a bottom view of the quick-repair fixed partition cabinet of this utility model;

[0022] In the diagram: 1. First pluggable molded case circuit breaker; 2. Second pluggable molded case circuit breaker; 3. Third pluggable molded case circuit breaker; 4. Fourth pluggable molded case circuit breaker; 5. First ammeter; 6. Second ammeter; 7. Third ammeter; 8. Fourth ammeter; 9. Indicator light; 10. Cabinet; 11. First current transformer; 12. Second current transformer; 13. Third current transformer; 14. Fourth current transformer; 15. Dividing assembly; 16. Busbar overlap; 17. Heat dissipation slot. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.

[0024] Please see Figure 1-6A quick-access fixed partition cabinet includes a partition assembly 15. This partition assembly 15 isolates the main busbar system, power distribution busbar system, functional units, and cable connection space by designing the power distribution circuit of the cabinet body 10 as a longitudinal and transverse partition structure. The cabinet body 10 is equipped with, from top to bottom, a first pluggable molded case circuit breaker 1, a second pluggable molded case circuit breaker 2, a third pluggable molded case circuit breaker 3, and a fourth pluggable molded case circuit breaker 4. The first ammeter 5, the second ammeter 6, the third ammeter 7, and the fourth ammeter 8 are respectively installed on the right side of the first ammeter 5, the second ammeter 6, the third ammeter 7, and the fourth ammeter 8. Each of the first ammeter 5, the second ammeter 6, the third ammeter 7, and the fourth ammeter 8 is equipped with an indicator light 9. The first current transformer 11, the second current transformer 12, the third current transformer 13, and the fourth current transformer 14 are respectively installed inside the cabinet 10 from top to bottom. The top of the cabinet 10 is the busbar overlap 16, and the top and bottom of the cabinet 10 are provided with heat dissipation slots 17 for heat dissipation.

[0025] Among them, cabinet 10 is an assembled structure, and the frame is assembled from C-shaped materials.

[0026] The horizontal busbar is placed at the top of the cabinet 10, and is connected by a rear or side exit method using an adapter.

[0027] Among them, the unit space height of the partition component 15 dividing the cabinet 10 refers to the height of the GCK and MNS drawers. The switch is fixedly installed. When the wiring is side-out, an adapter is generally used. The maximum allowable current for the 3-unit drawer is 800A.

[0028] The cabinet 10 features a closed vertical busbar channel with built-in copper busbars.

[0029] Among them, the enclosure 10 has four protection rating options: IP44, IP40, IP31, and IP30.

[0030] Working principle and usage process of this utility model: This quick-maintenance fixed partition cabinet:

[0031] 1. Structural optimization

[0032] By designing the power distribution circuit with a longitudinal and transverse separation structure, the main busbar system, power distribution busbar system, functional units, and cable connection spaces are isolated from each other, ensuring independence and safety during maintenance. Bolted connections are used for the power distribution busbars to reduce poor contact issues with connectors, and mechanical interlocking designs (such as adding padlocks to the extended operating handles on the outside of doors) prevent accidental opening of doors while the power is on.

[0033] 2. Safety performance

[0034] Electric shock protection: With its independent compartment design, a fault only affects a local area, preventing the spread of metal vapor and damage to a wider range of equipment; Arc resistance: It has an arc resistance capability of 85KAV / 0.5S, which can effectively prevent arc faults from causing injury to personnel and equipment.

[0035] 3. Intelligentization

[0036] Modular design: Supports flexible combinations of main cabinets, rear cabinets, and side cabinets to adapt to the needs of power systems of different sizes. Standardized components and modular mounting holes shorten production cycles and improve efficiency. Remote operation and maintenance: The industry is currently accelerating its transformation towards intelligent systems; intelligent distribution cabinets can achieve remote monitoring, fault early warning, and other functions, improving the safety and efficiency of power systems. Remote monitoring and maintenance are achieved through digital interfaces, reducing operation and maintenance costs and improving power supply continuity.

[0037] 4. Optimized heat dissipation performance

[0038] By separating components and adding ventilation holes, the heat dissipation of electrical components is significantly improved. This technology enhances heat dissipation efficiency while maintaining the same cabinet size by adjusting the airflow path, thus solving the problem of uneven heat dissipation in traditional fixed cabinets.

[0039] It should also be noted that the partition component 15 isolates the main busbar system, the power distribution busbar system, the functional units, and the cable connection space by designing the power distribution circuit of the cabinet 10 of the quick maintenance fixed partition cabinet as a longitudinal and transverse partition structure. The cabinet 10 is equipped with a first pluggable molded case circuit breaker 1, a second pluggable molded case circuit breaker 2, a third pluggable molded case circuit breaker 3, and a fourth pluggable molded case circuit breaker 4 from top to bottom. The first ammeter 5, the second ammeter 6, the third ammeter 7, and the fourth ammeter 8 are installed on the right side of the first pluggable molded case circuit breaker 1, the second pluggable molded case circuit breaker 2, the third pluggable molded case circuit breaker 3, and the fourth pluggable molded case circuit breaker 4, respectively. Each of them is equipped with an indicator light 9. The cabinet 10 is equipped with a first current transformer 11, a second current transformer 12, a third current transformer 13, and a fourth current transformer 14 from top to bottom. The cabinet 10 is an assembled structure, and the frame is assembled from C-shaped profiles. The horizontal busbar is placed on top of the cabinet, and generally uses a rear or side exit method (connected with adapters), making installation and maintenance convenient. The cabinet structure meets the technical requirements of MNS and GCK withdrawable low-voltage switchgear.

[0040] Meanwhile, the cabinet 10 adopts a modular assembly structure with modular hole installation, ensuring strong component versatility, good applicability, and a high degree of standardization. It features a longitudinal and transverse partition design, isolating the main busbar system, distribution busbar system, functional units, and cable connection spaces. During maintenance, each corresponding compartment can be operated independently, avoiding fault escalation and the risk of electric shock. Each functional unit compartment door is equipped with a mechanical interlock and an external operating handle, preventing the cabinet door from being opened while energized. A padlock can be added for added safety. Measuring instruments, indicator lights, and other components are flexibly arranged on the cabinet door surface. The circuit breaker terminals are connected to the distribution busbar via bolts, avoiding overheating problems caused by poor contact of the connectors. The use of non-magnetic materials (stainless steel brackets, aluminum alloy busbar clamps) reduces eddy current effects and temperature rise. The cabinet has passed a seismic test of intensity 9, and the vertical copper busbar is designed on the side (not the traditional back) to reduce electromagnetic interference. The protection level supports 3B / 4B isolation methods, adapting to harsh environments. The horizontal busbar current carrying capacity reaches 7000A, and the vertical busbar current carrying capacity is 3200A, meeting high current requirements.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A quick-maintenance fixed partition cabinet, comprising a partition assembly (15), wherein the partition assembly (15) isolates the main busbar system, the power distribution busbar system, the functional units, and the cable connection space from each other by designing the power distribution circuit of the cabinet body (10) of the quick-maintenance fixed partition cabinet as a longitudinal and transverse partition structure, characterized in that: The cabinet (10) is equipped with a first pluggable molded case circuit breaker (1), a second pluggable molded case circuit breaker (2), a third pluggable molded case circuit breaker (3), and a fourth pluggable molded case circuit breaker (4) from top to bottom. A first ammeter (5), a second ammeter (6), and a third ammeter (7) are respectively installed on the right side of the first pluggable molded case circuit breaker (1), the second pluggable molded case circuit breaker (2), the third pluggable molded case circuit breaker (3), and the fourth pluggable molded case circuit breaker (4). The fourth ammeter (8) is equipped with indicator lights (9) on the first ammeter (5), the second ammeter (6), the third ammeter (7), and the fourth ammeter (8). The cabinet (10) is equipped with the first current transformer (11), the second current transformer (12), the third current transformer (13), and the fourth current transformer (14) from top to bottom. The top of the cabinet (10) is the busbar overlap (16), and the top and bottom of the cabinet (10) are provided with heat dissipation slots (17) for heat dissipation.

2. The quick-maintenance fixed partition cabinet according to claim 1, characterized in that: The cabinet (10) is an assembled structure, and the frame is assembled from C-shaped profiles.

3. The quick-maintenance fixed partition cabinet according to claim 1, characterized in that: The horizontal busbar is placed at the top of the cabinet (10), and is connected by a rear or side exit method using an adapter.

4. The quick-access fixed partition cabinet according to claim 1, characterized in that: The unit space height of the partition component (15) dividing the cabinet (10) is based on the height of the GCK and MNS drawers. The switch is fixedly installed. When the wiring is side-out, an adapter is generally used. The maximum allowable current for the 3-unit drawer is 800A.

5. A quick-access, fixed partition cabinet according to claim 1, characterized in that: The cabinet (10) uses a closed vertical busbar channel with built-in copper busbars.

6. The quick-maintenance fixed partition cabinet according to claim 1, characterized in that: The enclosure (10) has four protection ratings: IP44, IP40, IP31, and IP30.

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