High-voltage cabinet, box-type substation, box-type charging station and box-type energy storage station
By combining the incoming line box, gas box, mechanism box and secondary box, the problems of large size and reduced function of high voltage switchgear are solved, and the compact design and safe and reliable efficient installation of high voltage switchgear are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN DAILU TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-19
Smart Images

Figure CN224384802U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of switchgear technology, and in particular to a high-voltage switchgear, a box-type substation, a box-type charging station, and a box-type energy storage station. Background Technology
[0002] Current technology commonly uses a parallel arrangement of high-voltage switchgear in prefabricated substations, such as sequentially arranging incoming and outgoing line cabinets side-by-side. This traditional arrangement, traditionally used in distribution rooms, results in bulky prefabricated substations that are difficult to miniaturize. To reduce size, configuration reduction is often employed, leading to decreased functionality. With the widespread adoption of high-power prefabricated charging stations and energy storage stations, switchgear requires high-voltage metering capabilities. Therefore, ensuring the functionality of high-voltage switchgear while reducing its size has become a pressing issue. Utility Model Content
[0003] The purpose of this utility model is to provide a high-voltage switchgear, a box-type substation, a box-type charging station, and a box-type energy storage station to address the shortcomings of the aforementioned technical problems.
[0004] To achieve the above objectives, this utility model discloses a high-voltage switchgear, characterized in that it includes an inlet box, an air box, a mechanism box, and a secondary box. The inlet box is located on a first side, the air box is located on the upper rear part of a second side, the mechanism box is located on the upper front part of the second side, the rear part of the mechanism box is spliced with the front part of the air box, and the secondary box is located on the middle front part of the second side. The high-voltage inlet line enters from the bottom or top of the inlet box and enters the air box through a plug-in head assembly. The air box is equipped with an inlet spacing and an outlet spacing, and the high-voltage outlet line is led out from the bushing assembly at the rear of the air box.
[0005] Compared with existing technologies, the advantages of this high-voltage switchgear are as follows: 1. Significantly reduced size; 2. Reduced cost, with a substantial reduction in cabinet materials and connecting wires; 3. Enhanced safety and reliability, as all high-voltage components, including load switch bays, circuit breaker bays, and combined electrical appliance bays, are enclosed in a single gas chamber, improving weather resistance and reducing the risk of failure; 4. Convenient installation and use, with easier high-voltage inlet and outlet lines. High-voltage inlet lines can enter from the bottom or top, and high-voltage outlet lines can be directly connected to the transformer, reducing the need for plugs and connecting cables.
[0006] Preferably, the gas box is equipped with a pressure relief valve leading to the inlet box, and the bottom or top of the inlet box is equipped with a pressure relief cover.
[0007] Preferably, a pressure relief valve is installed at the bottom of the air box.
[0008] Preferably, the lower rear part of the air box and the portion of the inlet box near the second side are recessed by a predetermined distance.
[0009] Preferably, a combined voltage transformer is installed at the bottom of the incoming line box.
[0010] Preferably, a voltage transformer is installed on the second side.
[0011] Preferably, the insulating medium inside the gas box includes SF6 gas, environmentally friendly gas, atmospheric pressure sealed air, or a solid.
[0012] Preferably, it includes the aforementioned high-voltage switchgear, as well as transformers and low-voltage switchgear.
[0013] Preferably, it includes the aforementioned high-voltage switchgear, as well as the transformer and charging cabinet.
[0014] Preferably, it includes the aforementioned high-voltage switchgear, as well as transformers and energy storage cabinets. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.
[0016] Figure 2 This is a left-side view of an embodiment of the present invention.
[0017] Figure 3 This is a right-side view of an embodiment of the present invention.
[0018] Figure 4 This is a top view schematic diagram of the prefabricated substation of this utility model. Detailed Implementation
[0019] To explain in detail the technical content, structural features, implementation principle, and achieved purpose and effect of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0020] like Figure 1 , Figure 2 and Figure 3 As shown, a high-voltage switchgear is characterized by comprising an inlet box 1, an air box 2, a mechanism box 3, and a secondary box 4. The inlet box 1 is located on the first side, the air box 2 is located on the upper rear part of the second side, the mechanism box 3 is located on the upper front part of the second side, and the rear part of the mechanism box 3 is spliced with the front part of the air box 2. The secondary box 4 is located on the middle front part of the second side. The high-voltage inlet line 6 enters from the bottom or top of the inlet box and enters the air box 2 through the plug-in head assembly 7. The air box 2 is equipped with an inlet line interval and an outlet line interval. The high-voltage outlet line 5 is led out from the bushing assembly at the rear of the air box 2.
[0021] The secondary box 4 can be equipped with integrated relay protection devices, indicators, UPS power supplies, etc. (not shown). The lower part of the incoming line box 1 is equipped with a combined voltage transformer 8.
[0022] like Figure 3 As shown, the air box 2 is equipped with a pressure relief valve 9 that leads to the inlet box 1, and the bottom or top of the inlet box 1 is equipped with a pressure relief cover (not shown).
[0023] This utility model of a high-voltage switchgear features an inlet box 1 that runs from bottom to top, allowing incoming lines to enter from either the bottom or the top; pressure relief can also be achieved from either the bottom or the top. This design is applicable to a wider range of scenarios, including direct connection from overhead lines or top connection when wiring runs from the roof indoors. The inlet and outlet bays share a common enclosure, housing all high-voltage switching components within a single gas chamber, reducing manufacturing costs. The gas chamber 2 is perfectly sized and fitted to the switchgear, with inlet, outlet, and metering cabinet connections achieved through direct connection via bushing connectors at corresponding positions, saving space and connecting wires. This innovative spatial layout not only maximizes space utilization and significantly reduces volume but also lowers costs.
[0024] like Figure 4 As shown, the high-voltage switchgear 11 is installed inside the enclosure and combined with different equipment: a prefabricated substation 10 includes the high-voltage switchgear 11, a transformer 12, and a low-voltage switchgear 13. Similarly... Figure 4 As shown, a box-type charging station 10 includes the aforementioned high-voltage cabinet 11, as well as a transformer 12 and a charging cabinet 13. Alternatively, a box-type energy storage station 10 includes a high-voltage cabinet 11, as well as a transformer 12 and an energy storage cabinet 13.
[0025] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.
Claims
1. A high-voltage switchgear, characterized in that, It includes an inlet box, an air box, a mechanism box, and a secondary box. The inlet box is located on the first side, the air box is located on the upper rear part of the second side, the mechanism box is located on the upper front part of the second side, and the rear part of the mechanism box is spliced with the front part of the air box. The secondary box is located on the middle front part of the second side. The high-voltage inlet line enters from the bottom or top of the inlet box and enters the air box through the plug-in head assembly. The air box is equipped with an inlet section and an outlet section. The high-voltage outlet line is led out from the bushing assembly at the rear of the air box.
2. The high-voltage switchgear according to claim 1, characterized in that, The air box is equipped with a pressure relief valve leading to the inlet box, and the bottom or top of the inlet box is equipped with a pressure relief cover.
3. The high-voltage switchgear according to claim 1, characterized in that, A pressure relief valve is installed at the bottom of the gas box.
4. The high-voltage switchgear according to claim 1, characterized in that, The lower rear part of the air box and the portion of the inlet box near the second side are recessed by a predetermined distance.
5. The high-voltage switchgear according to claim 1, characterized in that, A combined voltage transformer is installed at the bottom of the incoming line box.
6. The high-voltage switchgear according to claim 1, characterized in that, A voltage transformer is installed on the second side.
7. The high-voltage switchgear according to claim 1, characterized in that, The insulating medium inside the gas box includes SF6 gas, environmentally friendly gas, atmospheric pressure sealed air, or solid.
8. A prefabricated substation, characterized in that, It includes the high-voltage switchgear as described in any one of claims 1 to 7, as well as transformers and low-voltage switchgear.
9. A box-type charging station, characterized in that, It includes the high-voltage switchgear as described in any one of claims 1 to 7, as well as the transformer and the charging cabinet.
10. A box-type energy storage station, characterized in that, It includes the high-voltage switchgear as described in any one of claims 1 to 7, as well as transformers and energy storage cabinets.