Alternating current and direct current isolation special cabinet

By designing a special AC/DC isolation cabinet in the main feeder cabinet and using insulating materials and copper busbars for electrical isolation, the electromagnetic interference problem caused by the mixing of AC and DC devices is solved, and the safe and independent operation of the equipment and efficient power conduction are achieved.

CN223402070UActive Publication Date: 2025-09-30HUBEI QINGJIANG HYDROPOWER DEV
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Patent Information

Application Number
CN202422722653.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2025-09-30
Estimated Expiration
2034-11-08

AI Technical Summary

Technical Problem

In existing main feeder cabinets, AC and DC components are mixed in the same area, resulting in large electromagnetic interference, making them difficult to distinguish and repair, and affecting the safety of equipment operation.

Method used

A special AC/DC isolation cabinet is designed, using horizontal and vertical plates to form a rectangular frame to physically isolate AC and DC components. Insulating materials and copper busbars are used for electrical isolation, and wire frame brackets and ventilation holes are set to improve the stability of equipment operation.

Benefits of technology

It achieves safe and independent operation of AC and DC areas, reduces electromagnetic interference, improves power distribution conductivity, ensures equipment operation safety and neat wire distribution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric control cabinets, in particular to an alternating current and direct current isolation special cabinet which comprises a main feed cabinet and a branch feed cabinet, a direct current area and an alternating current area are arranged in the main feed cabinet, the direct current area is located above the alternating current area, a transverse plate is arranged between the direct current area and the alternating current area, two vertical plates are further arranged in the alternating current area, and the transverse plate is located above the two vertical plates. The two vertical plates are fixedly connected with the transverse plate to form a rectangular frame, and the devices used by the alternating current are arranged in the rectangular frame. According to the utility model, the transverse plate is used as the isolation plate, and the transverse plate is made of a high-insulation material, so that physical isolation can be formed for electrical elements in the direct-current area and the alternating-current area, the isolation performance is better, and the direct-current area and the alternating-current area can be ensured to operate safely and independently; and the equipment has more efficient power distribution conductivity.
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Description

Technical Field

[0001] The utility model relates to the technical field of electric control cabinets, in particular to an AC / DC isolation special cabinet. Background Art

[0002] Special power supply cabinet is an important power transmission and distribution device in the power grid power supply system. The external line is first connected to the main feed cabinet and then to the sub-feed cabinet. It also needs to be equipped with instruments, automatic control, motor magnetic switches and other devices.

[0003] The existing main feeder cabinet has a simple structure and an integrated design inside. The components used for AC power and DC power are mixed in the same area. Although the settings are relatively standardized, it is still impossible to intuitively distinguish between DC and AC components during installation or maintenance. In addition, the AC and DC areas are not isolated, resulting in large electromagnetic interference between the two areas, which is not conducive to the operation of the equipment.

[0004] Therefore, a special AC / DC isolation cabinet is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a special AC / DC isolation cabinet, which forms a rectangular frame by arranging a horizontal plate and two vertical plates. AC electrical appliances are arranged in the rectangular frame. The horizontal plate and the vertical plates are made of insulating material so as to effectively isolate the electrical contact between the DC area and the AC area, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A special AC / DC isolation cabinet, a main feed cabinet and a sub-feed cabinet, wherein the main feed cabinet is divided into a DC area and an AC area, the DC area is located above the AC area, a horizontal plate is provided between the DC area and the AC area, and two vertical plates are also provided in the AC area, the two vertical plates are fixedly connected to the horizontal plate to form a rectangular frame, and the components used for the AC power are all arranged in the rectangular frame.

[0008] Preferably, a plurality of DC mounting boards are spaced apart on the inner wall of the DC zone, and a plurality of wire frame brackets are provided on each DC mounting board. A plurality of AC mounting boards are spaced apart in the rectangular frame, and a plurality of wire frame brackets are also provided on each AC mounting board.

[0009] Preferably, a copper busbar is provided on the bottom side of the AC area, the copper busbar is located on the side wall of the vertical plate, and the copper busbar is used to connect to the external main incoming line.

[0010] A plurality of ventilation holes are evenly arranged on each side panel of the main feed cabinet.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. A horizontal plate is set as an isolation plate, and the horizontal plate is made of high-insulation material, which can form a physical isolation for the electrical components in the DC area and the AC area, with better isolation performance, ensuring that the DC area and the AC area can operate safely and independently. Copper busbars are also used to connect to the external main input line, so that the equipment has more efficient power distribution conductivity.

[0013] 2. Set up wire frame brackets to support the bundled wires so that the wires in the main feed cabinet and sub-feed cabinet are evenly and neatly distributed, reducing the occurrence of wires entangled in electrical appliances. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the isometric view of the main feed cabinet;

[0015] Figure 2 This is the axonometric view of the feeder cabinet;

[0016] Figure 3 This is the side bottom structure diagram of the main feed cabinet;

[0017] Figure 4 This is the bottom structure diagram of the rear of the feed cabinet.

[0018] In the figure: 1. Main feeder cabinet; 2. DC area; 3. AC area; 4. Vertical plate; 5. Horizontal plate; 6. Sub-feeder cabinet; 7. Wire frame bracket; 8. Copper busbar; 9. DC mounting plate; 10. AC mounting plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1 to 4 The utility model provides a special AC / DC isolation cabinet, and the technical solution is as follows:

[0021] A special AC / DC isolation cabinet includes a main feed cabinet 1 and a sub-feed cabinet 6. The main feed cabinet 1 is divided into a DC area 2 and an AC area 3. The DC area 2 is located above the AC area 3. A horizontal plate 5 is provided between the DC area 2 and the AC area 3. Two vertical plates 4 are also provided in the AC area 3. The two vertical plates 4 are fixedly connected to the horizontal plate 5 to form a rectangular frame. The components used for the AC power are all arranged in the rectangular frame.

[0022] The horizontal plate 5 and the vertical plate 4 are both made of high-quality insulating materials. The physical separation can better isolate the electrical contact between the AC area 3 and the DC area 2. The vertical plate 4 can isolate the electrical devices in the AC area 3 from the external wires.

[0023] A plurality of DC mounting plates 9 are arranged at intervals on the inner wall of the DC area 2. The DC mounting plates 9 are provided with a plurality of threaded holes, and DC electrical appliances can be fixed to the DC mounting plates 9 by screws, bolts, etc. A plurality of wire frame brackets 7 are fixed on each of the DC mounting plates 9 by screws. A plurality of AC mounting plates 10 are arranged at intervals in the rectangular frame, and a plurality of wire frame brackets 7 are also provided on each AC mounting plate 10. When wiring, multiple wires are first bundled together, and then the bundled wires are placed on the mounting bracket, thereby avoiding contact between the wires and electrical devices, and ensuring high equipment operation safety.

[0024] A copper busbar 8 is provided on the bottom side of the AC zone 3 , and the copper busbar 8 is located on the side wall of the vertical plate 4 . The copper busbar 8 is used to connect to the external main incoming line. The copper busbar 8 has high conductivity and strong electrical energy conductivity.

[0025] A plurality of ventilation holes are evenly provided on each side panel of the main feed cabinet 1. Ventilation and heat dissipation equipment are provided in the main feed cabinet 1 and the sub-feed cabinet 6. The ventilation and heat dissipation equipment may be auxiliary heat dissipation equipment such as fans and radiators.

[0026] The structure inside the sub-feeder cabinet is consistent with that of the main feeder cabinet, except for the type of electrical components.

[0027] The electrical components appearing in this article are all connected to the external main controller and 220V AC power through a transformer, and the main controller can be a conventional known device that controls computers, etc. The product model provided by the present utility model is only used for the purpose of this technical solution based on the structural characteristics of the product. The product will be adjusted and modified after purchase to make it more compatible with and in line with the technical solution of the present utility model. It is a technical solution for the best application of this technical solution. The model of its product can be replaced and modified according to the technical parameters required. It is well known to technical personnel in this field. Therefore, technical personnel in this field can clearly obtain the corresponding use effect through the technical solution provided by the present utility model.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special AC / DC isolation cabinet, comprising: The invention comprises a main feed cabinet (1) and a sub-feed cabinet (6). The main feed cabinet (1) is provided with a DC zone (2) and an AC zone (3). The DC zone (2) is located above the AC zone (3). A horizontal plate (5) is provided between the DC zone (2) and the AC zone (3). Two vertical plates (4) are further provided in the AC zone (3). The two vertical plates (4) are fixedly connected to the horizontal plate (5) to form a rectangular frame. The components used for the AC power are all provided in the rectangular frame.

2. The AC / DC isolation special cabinet according to claim 1, characterized in that: A plurality of DC mounting plates (9) are arranged at intervals on the inner wall of the DC area (2), and each of the DC mounting plates (9) is provided with a plurality of wire frame brackets (7). A plurality of AC mounting plates (10) are arranged at intervals in the rectangular frame, and each of the AC mounting plates (10) is also provided with a plurality of wire frame brackets (7).

3. The AC / DC isolation special cabinet according to claim 1, characterized in that: A copper busbar (8) is provided on the bottom side of the AC zone (3), and the copper busbar (8) is located on the side wall of the vertical plate (4). The copper busbar (8) is used to connect to an external main incoming line.

4. The AC / DC isolation special cabinet according to claim 3, characterized in that: A plurality of ventilation holes are evenly provided on each side panel of the main feed cabinet (1).