High-voltage switch cabinet
By introducing fans for ventilation and spraying cooling gas into the high-voltage switchgear, the problem of poor heat dissipation was solved, the temperature was reduced, and the wiring harness was organized, thereby improving the safety and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-14
AI Technical Summary
The existing high-voltage switchgear has poor heat dissipation, resulting in high operating temperatures, which can easily cause equipment failure and accelerate aging.
Fans, ventilation holes, air pumps, storage tanks, delivery pipes, jetting components, and temperature sensors are installed in the high-voltage switchgear. The temperature is reduced by ventilation and jetting cooling gas, and the wiring harness is organized using electric push rods.
It effectively reduces the internal temperature of the cabinet, improves equipment safety, and prevents cable clutter by organizing the wiring harness, thereby enhancing the stability of equipment operation.
Smart Images

Figure CN224123729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of switchgear, and in particular to a high-voltage switchgear. Background Technology
[0002] High-voltage switchgear is a device used in power systems to control, protect, and isolate electrical equipment. It is mainly used for the transmission and distribution of high-voltage power and is widely used in power plants, substations, and power distribution systems. High-voltage switchgear refers to electrical products with voltage levels ranging from 3.6kV to 550kV, including high-voltage disconnect switches and grounding switches, high-voltage load switches, high-voltage automatic reclosers and disconnectors, high-voltage operating mechanisms, high-voltage explosion-proof power distribution devices, and high-voltage switchgear.
[0003] High-voltage switchgear has overhead incoming and outgoing lines, cable incoming and outgoing lines, and busbar connection functions. It is mainly suitable for various places such as power plants, substations, petrochemical plants, metallurgical steel rolling mills, light industry and textiles, factories and mines, residential communities, and high-rise buildings. High-voltage switchgear plays an important role in protection, control and monitoring in the power system and is one of the core equipment to ensure the safe and stable operation of the power system.
[0004] In the existing technology, some high-voltage switchgear cabinets are relatively enclosed, resulting in poor heat dissipation and high operating temperatures. Actual measurements during operation show that many devices in high-voltage switchgear cabinets cannot operate in high-temperature environments, as high temperatures can easily cause equipment failure and accelerate equipment aging. Therefore, a new type of high-voltage switchgear cabinet is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a high-voltage switchgear, which aims to improve the problem that some high-voltage switchgear in the prior art are relatively enclosed, have poor heat dissipation, resulting in high operating temperatures, which can easily cause equipment failure and accelerate equipment aging.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A high-voltage switchgear includes a cabinet, a base fixedly connected inside the cabinet, a fan fixedly connected to the upper part of the base, a protective component provided on the upper part of the fan, a ventilation hole provided on one side of the cabinet, a storage tank fixedly connected to the bottom inside the cabinet, an air pump fixedly connected to the top of the storage tank, a delivery pipe fixedly connected to the top of the air pump, a support block fixedly connected to one side of the cabinet, i.e., the side near the delivery pipe, the outside of the delivery pipe fixedly connected to the inside of the support block, a spraying component fixedly connected to the top inside the cabinet, and a temperature sensor fixedly connected to the top inside the cabinet.
[0008] As a further description of the above technical solution:
[0009] The protective component includes a protective net, the bottom of which is fixedly connected to the top of the cabinet, and a baffle is fixedly connected to the top of the cabinet, with the baffle positioned on top of the protective net.
[0010] As a further description of the above technical solution:
[0011] The spraying assembly includes an annular pipe, the top of which is fixedly connected to the inside top side of the cabinet, the other side of which is fixedly connected to the bottom of the annular pipe, and a nozzle is fixedly connected to the bottom of the annular pipe.
[0012] As a further description of the above technical solution:
[0013] A mounting base is fixedly connected to the inner bottom side of the base, and a T-shaped fixing block is fixedly connected to the inner bottom side of the base;
[0014] As a further description of the above technical solution:
[0015] An electric push rod one is fixedly connected inside the T-shaped fixing block, and an electric push rod two is fixedly connected inside the T-shaped fixing block;
[0016] As a further description of the above technical solution:
[0017] The drive end of the electric push rod one is fixedly connected to a round rod one, and the outside of the round rod one is slidably connected to the inside of the mounting base. The drive end of the electric push rod two is fixedly connected to a round rod two, and the outside of the round rod two is slidably connected to the inside of the mounting base.
[0018] As a further description of the above technical solution:
[0019] A slider is fixedly connected to the outside of the first round rod, and the slider is slidably connected to the inside of the mounting base. A slider is fixedly connected to the outside of the second round rod, and the slider is slidably connected to the inside of the mounting base.
[0020] As a further description of the above technical solution:
[0021] An instrument compartment is fixedly connected to the upper interior of the base, a circuit breaker compartment is fixedly connected to the lower interior of the base, and a cabinet door is rotatably connected to the interior of the cabinet.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, after the fan is started, it can form a heat dissipation airflow in conjunction with the ventilation hole. After the temperature sensor detects that the temperature is too high, the air pump can transport the cooling gas in the storage tank to the annular pipe through the delivery pipe, and then spray it into the cabinet through the nozzle to achieve the effect of reducing the temperature and improve the safety of the device.
[0024] 2. In this utility model, compared with the traditional device, this device is provided with a mechanism for organizing the wire bundle. The electric push rod one pulls the round rod one to slide, and the round rod one drives the slider one to move. The electric push rod two pushes the round rod two to slide, and the round rod two drives the slider two to move, so that the slider one and the slider two move towards each other, thereby achieving the effect of clamping and organizing the wire bundle. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a high-voltage switchgear proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the instrument compartment of a high-voltage switchgear according to the present invention;
[0027] Figure 3 This is a schematic diagram of the structure of a ring-shaped pipe in a high-voltage switchgear according to the present invention.
[0028] Figure 4 for Figure 2 Enlarged view of point A in the middle.
[0029] Legend:
[0030] 1. Cabinet; 2. Base; 3. Fan; 4. Protective net; 5. Baffle; 6. Ventilation hole; 7. Storage tank; 8. Air pump; 9. Delivery pipe; 10. Support block; 11. Circular pipe; 12. Nozzle; 13. Temperature sensor; 14. Mounting base; 15. T-shaped fixing block; 16. Electric push rod one; 17. Electric push rod two; 18. Round rod one; 19. Round rod two; 20. Slider one; 21. Slider two; 22. Instrument room; 23. Circuit breaker room; 24. Cabinet door. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figures 1 to 3This utility model provides an embodiment of a high-voltage switchgear, including a cabinet 1, which serves as the main structure of the entire high-voltage switchgear and is made of high-strength metal material. A base 2 is fixedly connected inside the cabinet 1, ensuring stable support for the equipment inside the cabinet 1. A fan 3 is fixedly connected to the upper part of the base 2, used for ventilation and heat dissipation inside the cabinet 1. A protective component is provided on the upper part of the fan 3 to prevent foreign objects from entering the fan 3 and to prevent damage to the fan 3. A ventilation hole 6 is provided on one side of the cabinet 1, serving as a channel for air circulation between the inside and outside of the cabinet 1. A storage tank 7 is fixedly connected to the bottom inside the cabinet 1. For storing cooling gas, a gas pump 8 is fixedly connected to the top of the storage tank 7. The gas pump 8 is used to extract the gas in the storage tank 7 and deliver it to the injection assembly through the delivery pipe 9. The delivery pipe 9 is fixedly connected to the top of the gas pump 8. The delivery pipe 9 is used to deliver gas and has good pressure resistance and sealing performance. A support block 10 is fixedly connected to one side of the cabinet 1, that is, the side close to the delivery pipe 9. The support block 10 can firmly fix the delivery pipe 9 and prevent shaking and displacement. The outside of the delivery pipe 9 is fixedly connected to the inside of the support block 10. The injection assembly is fixedly connected to the top inside of the cabinet 1. A temperature sensor 13 is fixedly connected to the top inside of the cabinet 1. The temperature sensor 13 is used to monitor the temperature inside the cabinet 1 in real time.
[0033] Reference Figure 2 and Figure 3 The protective components include a protective net 4, which has high strength and protective performance. The bottom of the protective net 4 is fixedly connected to the top of the cabinet 1. A baffle 5 is fixedly connected to the top of the cabinet 1. The baffle 5 is used to prevent foreign objects from entering the cabinet 1 and also plays a certain role in rain and dust protection. The baffle 5 is set on the top of the protective net 4. The spraying components include an annular pipe 11, which has an annular structure and good pressure resistance and sealing performance. The top of the annular pipe 11 is fixedly connected to the top side of the inside of the cabinet 1. The other side of the delivery pipe 9 is fixedly connected to the bottom of the annular pipe 11. A nozzle 12 is fixedly connected to the bottom of the annular pipe 11. The nozzle 12 is used to spray gas into the inside of the cabinet 1.
[0034] Reference Figure 1 , Figure 2 and Figure 4The base 2 has a mounting base 14 fixedly connected to its inner bottom side. The mounting base 14 provides a sliding foundation for electric push rod 16 and electric push rod 17. The base 2 also has a T-shaped fixing block 15 fixedly connected to its inner bottom side. The T-shaped fixing block 15 is used to fix electric push rod 16 and electric push rod 17. Electric push rod 16 is fixedly connected inside the T-shaped fixing block 15. The extension and retraction of electric push rod 16 causes round rod 18 to slide inside the mounting base 14, thereby controlling slider 20. Electric push rod 17 is fixedly connected inside the T-shaped fixing block 15. The extension and retraction of electric push rod 17 causes round rod 19 to slide inside the mounting base 14, thereby controlling slider 21. The drive end of electric push rod 16 is fixedly connected to round rod 18. The surface of round rod 18 is precision machined and made of metal. The outside of round rod 18 is slidably connected inside the mounting base 14.
[0035] The drive end of the electric push rod 17 is fixedly connected to a round rod 19. The surface of the round rod 19 is precision machined and made of metal. The outside of the round rod 19 is slidably connected to the inside of the mounting base 14. The outside of the round rod 18 is fixedly connected to a slider 20. The slider 20 can slide inside the round rod 19. The outside of the slider 20 is slidably connected to the inside of the mounting base 14. The outside of the round rod 19 is fixedly connected to a slider 21. The slider 21 can slide outside the round rod 18. The outside of the slider 21 is slidably connected to the inside of the mounting base 14. The upper part of the base 2 is fixedly connected to an instrument compartment 22, which is used to install various instruments and control equipment. The lower part of the base 2 is fixedly connected to a circuit breaker compartment 23, which is used to install circuit breaker electrical equipment. The inside of the cabinet 1 is rotatably connected to a cabinet door 24, which is used to open and close the cabinet 1 to facilitate the operation and maintenance of the equipment inside the cabinet 1.
[0036] Working principle: Temperature sensor 13 monitors the internal temperature of cabinet 1 in real time. When temperature sensor 13 detects that the internal temperature of cabinet 1 has reached the set value, the control system starts fan 3. Fan 3 ventilates and dissipates heat inside cabinet 1. Air circulates with the inside of cabinet 1 through ventilation hole 6 on the outside of cabinet 1. The protective net 4 and baffle 5 on the top of cabinet 1 can effectively prevent dust and foreign objects from entering fan 3. At the same time, air pump 8 starts to extract the cooling gas stored in storage tank 7 and deliver it through delivery pipe 9 to the annular pipe 11 located on the top side inside cabinet 1. Then, the nozzle 12 at the bottom of the annular pipe 11 sprays the gas into the inside of cabinet 1 to further assist in cooling.
[0037] Inside the base 2, electric push rod 16 and electric push rod 27 can extend and retract as needed. The extension and retraction of electric push rod 16 causes round rod 18 to slide within the mounting base 14, thereby controlling slider 20. The extension and retraction of electric push rod 27 causes round rod 29 to slide within the mounting base 14, thereby controlling slider 21. This causes slider 20 and slider 21 to move towards each other, achieving the effect of clamping and organizing the wire harness. The instruments and control equipment in the instrument room 22 can monitor and control the operating status of the switch cabinet. The electrical equipment in the circuit breaker room 23 is responsible for the on / off control of the circuit. The cabinet door 24 can be rotated and opened so that operators can operate and maintain the equipment inside the cabinet 1.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-voltage switchgear, comprising a cabinet (1), characterized in that: The cabinet (1) is fixedly connected to a base (2) inside. A fan (3) is fixedly connected to the upper part of the base (2). A protective component is provided on the upper part of the fan (3). A ventilation hole (6) is provided on one side of the cabinet (1). A storage tank (7) is fixedly connected to the bottom side of the cabinet (1). An air pump (8) is fixedly connected to the top of the storage tank (7). A delivery pipe (9) is fixedly connected to the top of the air pump (8). A support block (10) is fixedly connected to one side of the cabinet (1), that is, the side close to the delivery pipe (9). The outside of the delivery pipe (9) is fixedly connected to the inside of the support block (10). A spray component is fixedly connected to the top side of the cabinet (1). A temperature sensor (13) is fixedly connected to the top side of the cabinet (1).
2. A high-voltage switchgear according to claim 1, characterized in that: The protective component includes a protective net (4), the bottom of which is fixedly connected to the top of the cabinet (1), and a baffle (5) is fixedly connected to the top of the cabinet (1). The baffle (5) is located on the top of the protective net (4).
3. A high-voltage switchgear according to claim 1, characterized in that: The spraying assembly includes an annular pipe (11), the top of which is fixedly connected to the inside top side of the cabinet (1), the other side of the delivery pipe (9) is fixedly connected to the bottom of the annular pipe (11), and a nozzle (12) is fixedly connected to the bottom of the annular pipe (11).
4. A high-voltage switchgear according to claim 1, characterized in that: The base (2) is fixedly connected to the inner bottom side of the mounting base (14), and the base (2) is fixedly connected to the inner bottom side of the mounting base (15).
5. A high-voltage switchgear according to claim 4, characterized in that: The T-shaped fixing block (15) is internally fixedly connected to an electric push rod one (16), and the T-shaped fixing block (15) is internally fixedly connected to an electric push rod two (17).
6. A high-voltage switchgear according to claim 5, characterized in that: The drive end of the electric push rod one (16) is fixedly connected to a round rod one (18), and the outside of the round rod one (18) is slidably connected to the inside of the mounting base (14). The drive end of the electric push rod two (17) is fixedly connected to a round rod two (19), and the outside of the round rod two (19) is slidably connected to the inside of the mounting base (14).
7. A high-voltage switchgear according to claim 6, characterized in that: The outer side of the first round rod (18) is fixedly connected to the first slider (20), and the outer side of the first slider (20) is slidably connected to the inside of the mounting base (14). The outer side of the second round rod (19) is fixedly connected to the second slider (21), and the outer side of the second slider (21) is slidably connected to the inside of the mounting base (14).
8. A high-voltage switchgear according to claim 1, characterized in that: An instrument compartment (22) is fixedly connected to the upper part of the base (2), a circuit breaker compartment (23) is fixedly connected to the lower part of the base (2), and a cabinet door (24) is rotatably connected to the inside of the cabinet (1).