Heat dissipation type high-voltage cabinet

Abstract

The utility model relates to the technical field of power equipment, in particular to a heat dissipation type high-voltage cabinet which comprises a high-voltage cabinet body, a cabinet door is movably installed on one side of the high-voltage cabinet body, and a heat dissipation assembly is arranged on one side of the high-voltage cabinet body; through the arrangement of the first heat dissipation mechanism, the second heat dissipation mechanism, the heat dissipation fins, the exhaust fan and other components, the exhaust fan can form airflow through rotation through the mutual cooperation relation between the heat dissipation fins and the exhaust fan, and air cooling heat dissipation is conducted on the heat dissipation fins. The heat dissipation fins can increase the heat dissipation area and accelerate heat dissipation. Therefore, the device can efficiently dissipate the heat in the high-voltage cabinet body in a manner of air cooling and heat dissipation area increase. And through the mutual matching relationship among the rain baffle, the flow deflector and the filter screen, the rain baffle can block rainwater through blocking, and the flow deflector can guide the rainwater out. Meanwhile, the filter screen can filter impurities such as dust.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, and in particular to a heat-dissipating high-voltage switchgear. Background Technology

[0002] In power systems, high-voltage switchgear, as a crucial electrical device, plays a vital role in distributing and controlling electrical energy. With the continuous growth of electricity demand and the gradual increase in the operating power of electrical equipment, high-voltage switchgear generates a significant amount of heat during operation. Traditional high-voltage switchgear has relatively limited heat dissipation methods and low efficiency. Common natural heat dissipation methods rely solely on natural convection between the switchgear casing and the surrounding air, which cannot meet the ever-increasing heat dissipation demands. While simple fan cooling can accelerate airflow to some extent, it lacks proper airflow organization and an efficient heat dissipation structure, making it difficult to achieve rapid and uniform heat dissipation, resulting in excessively high internal temperatures within the high-voltage switchgear.

[0003] A search revealed Chinese Patent Publication No. CN216903831U, which discloses a heat-dissipating high-voltage switchgear, comprising a cabinet body, a cabinet door, and a heat dissipation device. The cabinet body includes an outer cover and an inner cabinet. A cavity is left above the cabinet body on the top wall of the outer cover, and air ducts are left between the side walls of the outer cover and the side walls and back of the cabinet body. A square opening is provided on the front of the cavity of the outer cover, and a flip door is hinged to the square opening. The heat dissipation device includes a fan duct and a plug switch. The fan duct is fixedly erected on the inner surface of the flip door. The plug switch includes a socket and a plug. The socket is fixed on the inner edge of the square opening, and the plug is located on the inner surface of the flip door. The inner cabinet is open at the top, and the lower part of the inner cabinet extends out from the bottom of the outer cover. The cabinet door is located on the front of the inner cabinet. The large and wide air inlet and outlet channels allow for a wide airflow sampling point, which can introduce more low-temperature airflow and expel high-temperature airflow faster, resulting in high heat dissipation efficiency. It also facilitates the inspection and maintenance of the fan duct, is convenient to use, and is simple and safe to operate.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: a large space needs to be reserved between the outer casing and the inner cabinet of the device, and the fan exhaust is integrated into the flip door, requiring the entire door to be opened for maintenance, which is cumbersome; insufficient airflow guidance efficiency: although the air cavity design enlarges the air inlet and outlet, it does not provide directional airflow for the internal heat-generating components, making it easy for heat to accumulate in local areas; and a simple layout of heat dissipation components: heat dissipation is achieved solely through the top fan exhaust, which cannot form a three-dimensional circulating airflow, limiting the heat dissipation effect in high-temperature areas. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides a heat-dissipating high-voltage switchgear.

[0006] The present application provides a heat-dissipating high-voltage switchgear, which adopts the following technical solution: a heat-dissipating high-voltage switchgear includes a high-voltage switchgear body, a cabinet door is movably installed on one side of the high-voltage switchgear body, and a heat dissipation component is provided on one side of the high-voltage switchgear body;

[0007] The heat dissipation assembly includes a first heat dissipation mechanism and a second heat dissipation mechanism, which are symmetrically arranged around the high-voltage switchgear body. Each of the first and second heat dissipation mechanisms includes a housing mounting plate, bolts, a heat sink positioning plate, heat sink fins, and a heat dissipation cavity housing. The housing mounting plate is fixedly installed inside the high-voltage switchgear body by bolts, with the bolts threaded into a through hole on one side of the high-voltage switchgear body. A heat sink positioning plate is fixedly installed inside the housing mounting plate, and heat sink fins are fixedly installed on one side of the heat sink positioning plate. A heat dissipation cavity housing is fixedly installed on one side of the housing mounting plate, and the heat dissipation cavity housing is located inside the high-voltage switchgear body.

[0008] The above scheme achieves balanced heat dissipation through a symmetrical dual heat dissipation mechanism, ensures structural stability through bolt fixing, and improves heat conduction efficiency through the combination of heat dissipation fins and positioning plates.

[0009] Optionally, the first heat dissipation mechanism and the second heat dissipation mechanism further include a rain shield, a guide plate, and a positioning hole. The rain shield is fixedly installed on one side of the high-voltage cabinet body by bolts. The rain shield has a positioning hole at the corresponding position of the bolt. A guide plate is fixedly connected to one side of the rain shield, and the guide plate is inclined downward at a certain angle.

[0010] The above solution effectively guides rainwater to slide off the surface with a 60° tilted guide vane, while the positioning holes and bolts enhance the sealing performance, balancing rain protection and structural strength.

[0011] Optionally, the heat dissipation assembly further includes a narrow tube, an exhaust fan, and a vertical partition. The narrow tube is fixedly installed between the heat dissipation cavity shell and the vertical partition. The narrow tube includes an upper ventilation pipe and a lower ventilation pipe. An exhaust fan is movably installed inside the narrow tube, and the exhaust fans inside the first heat dissipation mechanism and the second heat dissipation mechanism rotate in the same direction.

[0012] The above solution creates a directional airflow channel with dual ventilation ducts, and the unidirectional exhaust fans generate synergistic air pressure, accelerating the air circulation and heat dissipation inside and outside the cabinet.

[0013] Optionally, the heat dissipation cavity shell, narrow tube, vertical partition, and horizontal partition fixedly connected to the upper and lower sides of the vertical partition together constitute an airflow heat dissipation channel in the first heat dissipation mechanism and the second heat dissipation mechanism.

[0014] The above solution constructs a high-efficiency air duct system with multi-layer partitions, reducing airflow turbulence and concentrating airflow to improve the overall efficiency of the heat dissipation components.

[0015] Optionally, the heat dissipation fins are composed of multiple S-shaped heat dissipation fins, and the heat dissipation fins are respectively arranged on one side of the upper and lower vents of the narrow tube.

[0016] The above scheme increases the heat dissipation surface area by using S-shaped fins, enhances convection heat transfer by matching the position of the vents, and optimizes the heat diffusion path.

[0017] Optionally, a filter screen is provided on the side of the rain shield near the heat dissipation fins.

[0018] The above solution prevents dust and debris from entering the heat dissipation cavity, maintains the cleanliness of the fins, and extends the service life of the heat dissipation components.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] 1. This utility model, by setting up a first heat dissipation mechanism, a second heat dissipation mechanism, heat dissipation fins, an exhaust fan, and other components, utilizes the cooperative relationship between the heat dissipation fins and the exhaust fan to enable the exhaust fan to generate airflow through rotation, thereby providing air cooling for the heat dissipation fins. The heat dissipation fins increase the heat dissipation area and accelerate heat dissipation. Thus, this device achieves the effect of efficiently dissipating heat within the high-voltage switchgear body through air cooling and increased heat dissipation area.

[0021] 2. This utility model, by incorporating components such as a rain shield, a guide vane, and a filter, utilizes the cooperative relationship between the rain shield, guide vane, and filter to intercept rainwater, while the guide vane directs the rainwater away. Simultaneously, the filter removes dust and other impurities. Thus, this device achieves the effect of protecting and filtering the air entering the heat dissipation components, thereby cleaning the internal parts and protecting them. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the device in the embodiments of this application;

[0023] Figure 2 This is a schematic diagram of a partial structure of the device in an embodiment of this application;

[0024] Figure 3 This is a partial structural diagram of the heat dissipation component in an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of a partial structure installation of the heat dissipation component in an embodiment of this application;

[0026] Reference numerals in the attached drawings: 1. High-voltage cabinet body; 2. Cabinet door; 3. Heat dissipation assembly; 31. First heat dissipation mechanism; 32. Second heat dissipation mechanism; 301. Rain shield; 302. Guide plate; 303. Positioning hole; 304. Outer shell mounting plate; 305. Bolt; 306. Heat dissipation fin positioning plate; 308. Heat dissipation cavity outer shell; 309. Narrow tube; 310. Exhaust fan; 311. Vertical partition. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] This application discloses a heat-dissipating high-voltage switchgear.

[0029] Please see Figure 1 A heat dissipation type high voltage switch includes a high voltage switch body 1, a cabinet door 2 is movably installed on one side of the high voltage switch body 1, and a heat dissipation component 3 is provided on one side of the high voltage switch body 1.

[0030] Please see Figures 2 to 4 The heat dissipation assembly 3 includes a first heat dissipation mechanism 31 and a second heat dissipation mechanism 32, which are symmetrically arranged around the high-voltage cabinet body 1. Both the first heat dissipation mechanism 31 and the second heat dissipation mechanism 32 include an outer shell mounting plate 304, bolts 305, a heat sink positioning plate 306, heat dissipation fins 307, and a heat dissipation cavity outer shell 308. The outer shell mounting plate 304 is fixedly installed inside the high-voltage cabinet body 1 by bolts 305. The bolts 305 are threaded into the inside of a hole opened through one side of the high-voltage cabinet body 1. The heat sink positioning plate 306 is fixedly installed inside the outer shell mounting plate 304. Heat dissipation fins 307 are fixedly installed on one side of the heat sink positioning plate 306. The heat dissipation cavity outer shell 308 is fixedly installed on one side of the outer shell mounting plate 304 and is located inside the high-voltage cabinet body 1.

[0031] The first heat dissipation mechanism 31 and the second heat dissipation mechanism 32 also include a rain shield 301, a guide plate 302 and a positioning hole 303. The rain shield 301 is fixedly installed on one side of the high voltage cabinet body 1 by bolts 305. The rain shield 301 has a positioning hole 303 at the corresponding position of the bolts 305. A guide plate 302 is fixedly connected to one side of the rain shield 301. The guide plate 302 is set to tilt downward at 60°.

[0032] The heat dissipation assembly 3 also includes a narrow tube 309, an exhaust fan 310, and a vertical partition 311. The narrow tube 309 is fixedly installed between the heat dissipation cavity shell 308 and the vertical partition 311. The narrow tube 309 includes an upper ventilation tube and a lower ventilation tube. The exhaust fan 310 is movably installed inside the narrow tube 309, and the exhaust fans 310 inside the first heat dissipation mechanism 31 and the second heat dissipation mechanism 32 rotate in the same direction.

[0033] The heat dissipation cavity shell 308, narrow tube 309, vertical partition 311, and horizontal partitions fixedly connected to the upper and lower sides of the vertical partition 311 inside the first heat dissipation mechanism 31 and the second heat dissipation mechanism 32 together form an airflow heat dissipation channel.

[0034] The heat dissipation fins 307 are composed of multiple S-shaped heat dissipation fins, and the heat dissipation fins 307 are respectively arranged on one side of the upper and lower vents of the narrow tube 309.

[0035] A filter screen is provided on the side of the rain shield 301 near the heat dissipation fins 307.

[0036] It needs further explanation that the heat dissipation component 3 is mainly composed of the first heat dissipation mechanism 31 and the second heat dissipation mechanism 32. The two are symmetrically arranged with the high-voltage cabinet body 1 as the center, which greatly improves the heat dissipation efficiency.

[0037] The primary function of the heat dissipation component 3 is heat dissipation. The heat dissipation fins 307 in the first heat dissipation mechanism 31 and the second heat dissipation mechanism 32 can increase the heat dissipation area and accelerate the dissipation of heat. The exhaust fan 310 in the narrow tube 309 rotates to form airflow. Through the airflow heat dissipation channel, the hot air in the high-voltage cabinet is exhausted and the cold air is introduced to achieve effective air circulation. The heat dissipation fins 307 are set on one side of the ventilation opening of the narrow tube 309 so that they can better contact the airflow and enhance the heat dissipation effect, thereby reducing the temperature in the high-voltage cabinet, avoiding equipment failure caused by high temperature, and extending the service life of the high-voltage cabinet.

[0038] The heat dissipation component 3 has a protective function. The rain shield 301 can prevent rainwater from entering the high-voltage cabinet and avoid damage to electrical components due to moisture. The guide plate 302 is set to tilt downward at 60° so that rainwater can be smoothly guided out. The filter screen on the side of the rain shield 301 near the heat dissipation fins 307 can filter dust and other impurities, ensuring that the air entering the heat dissipation channel is clean and preventing dust accumulation from affecting the heat dissipation effect and normal operation of the equipment, thus providing a good operating environment for the high-voltage cabinet.

[0039] The implementation principle of a heat-dissipating high-voltage switchgear according to an embodiment of this application is as follows:

[0040] First, when the high-voltage cabinet starts to operate and generates heat, outside air will enter the heat dissipation component 3 through the rain shield 301. The rain shield 301 serves to block rainwater. The filter screen on one side will perform preliminary filtration of the incoming air, intercepting dust, debris and other impurities in the air to prevent these impurities from entering the high-voltage cabinet and affecting the normal operation of the equipment. The guide vane 302 is tilted downward at 60° to guide rainwater to drain smoothly and prevent rainwater from accumulating at the rain shield 301.

[0041] Secondly, the heat generated inside the high-voltage cabinet body 1 is transferred to the heat dissipation fins 307. The heat dissipation fins 307 are composed of multiple S-shaped heat dissipation fins. This shape design greatly increases the heat dissipation area, allowing heat to be conducted more quickly from inside the high-voltage cabinet to the surface of the heat dissipation fins 307. The heat dissipation fins 307 are fixed inside the high-voltage cabinet body 1 by the outer shell mounting plate 304 and the heat dissipation fin positioning plate 306, ensuring the high efficiency and stability of heat transfer.

[0042] Next, the exhaust fan 310 inside the narrow tube 309 starts to work. The exhaust fans 310 inside the first heat dissipation mechanism 31 and the second heat dissipation mechanism 32 rotate in the same direction, thereby forming a stable airflow. The heat dissipation cavity shell 308, the narrow tube 309, the vertical partition 311 and the horizontal partition fixedly connected to the upper and lower sides of the vertical partition 311 together form an airflow heat dissipation channel. The airflow flows in this channel. The rotation of the exhaust fan 310 drives the airflow, introduces the filtered cold air from the outside into the channel, and makes full contact with the heat dissipation fins 307.

[0043] Next, when the cold air comes into contact with the heat dissipation fins 307 in the airflow heat dissipation channel, heat exchange will occur. The heat on the heat dissipation fins 307 will be transferred to the cold air, causing the temperature of the cold air to rise, while the temperature of the heat dissipation fins 307 will drop, thereby achieving the dissipation of heat inside the high-voltage cabinet. Since the heat dissipation fins 307 are respectively set on one side of the upper and lower ventilation openings of the narrow tube 309, they can contact the airflow to the maximum extent and improve the efficiency of heat exchange.

[0044] Finally, after heat exchange, the heated air is exhausted to the outside of the high-voltage cabinet body 1 through the airflow heat dissipation channel by the exhaust fan 310. This continuous circulation dissipates the heat generated inside the high-voltage cabinet, keeping the internal temperature of the high-voltage cabinet within a suitable range and ensuring the normal and stable operation of the high-voltage cabinet.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat-dissipating high-voltage switchgear, comprising a high-voltage switchgear body (1), characterized in that: A cabinet door (2) is movably installed on one side of the high-voltage cabinet body (1), and a heat dissipation component (3) is provided on one side of the high-voltage cabinet body (1). A heat dissipation assembly (3) includes a first heat dissipation mechanism (31) and a second heat dissipation mechanism (32), which are symmetrically arranged around the high-voltage cabinet body (1). Each of the first and second heat dissipation mechanisms includes a housing mounting plate (304), bolts (305), a heat sink positioning plate (306), heat dissipation fins (307), and a heat dissipation cavity housing (308). The housing mounting plate (304) is secured by bolts. 305) is fixedly installed inside the high voltage cabinet body (1). The bolt (305) is threaded into the hole through which the high voltage cabinet body (1) is opened on one side. A heat sink positioning plate (306) is fixedly installed inside the outer shell mounting plate (304). Heat sink fins (307) are fixedly installed on one side of the heat sink positioning plate (306). A heat dissipation cavity shell (308) is fixedly installed on one side of the outer shell mounting plate (304). The heat dissipation cavity shell (308) is located inside the high voltage cabinet body (1).

2. The heat-dissipating high-voltage switchgear according to claim 1, characterized in that: The first heat dissipation mechanism (31) and the second heat dissipation mechanism (32) further include a rain shield (301), a guide plate (302) and a positioning hole (303). The rain shield (301) is fixedly installed on one side of the high voltage cabinet body (1) by bolts (305). The rain shield (301) has a positioning hole (303) at the corresponding position of the bolt (305). A guide plate (302) is fixedly connected to one side of the rain shield (301). The guide plate (302) is inclined downward at 60°.

3. A heat-dissipating high-voltage switchgear according to claim 2, characterized in that: The heat dissipation assembly (3) also includes a narrow tube (309), an exhaust fan (310), and a vertical partition (311). The narrow tube (309) is fixedly installed between the heat dissipation cavity shell (308) and the vertical partition (311). The narrow tube (309) includes an upper ventilation pipe and a lower ventilation pipe. An exhaust fan (310) is movably installed inside the narrow tube (309), and the exhaust fans (310) inside the first heat dissipation mechanism (31) and the second heat dissipation mechanism (32) rotate in the same direction.

4. A heat-dissipating high-voltage switchgear according to claim 3, characterized in that: The heat dissipation cavity shell (308), narrow tube (309), vertical partition (311), and horizontal partition fixedly connected to the upper and lower sides of the vertical partition (311) of the first heat dissipation mechanism (31) and the second heat dissipation mechanism (32) together form an airflow heat dissipation channel.

5. A heat-dissipating high-voltage switchgear according to claim 2, characterized in that: The heat dissipation fins (307) are composed of multiple S-shaped heat dissipation fins, and the heat dissipation fins (307) are respectively arranged on one side of the upper and lower vents of the narrow tube (309).

6. A heat-dissipating high-voltage switchgear according to claim 2, characterized in that: A filter screen is provided on the side of the rain shield (301) near the heat dissipation fins (307).

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