Ventilation and heat dissipation device of high-voltage interconnection cabinet

Abstract

The utility model relates to a power equipment heat dissipation technical field especially, relates to a kind of ventilation and heat dissipation device of high pressure contact cabinet, solve the risk that there is in the way of direct participation air cooling of cooling liquid in prior art, once cooling ring or cooling pipe breaks down due to material ageing, vibration or improper installation, cooling liquid can leak to the inside of heat dissipation box, even into high pressure cabinet, cause erosion to high-voltage electrical components in cabinet, at least lead to equipment insulation performance decline, heavy possibly cause short circuit, arc discharge and other serious security problems.A kind of ventilation and heat dissipation device of high pressure contact cabinet, including high pressure cabinet and the mounting bracket installed in the inside of high pressure cabinet, the installation groove is set in the center of both sides of high pressure cabinet.The utility model is completely using air cooling mode, avoids the security risk brought by cooling liquid leakage, improves the safety of heat dissipation efficiency and equipment operation, meets the requirement of power system to equipment operation reliability and maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the field of power equipment heat dissipation technology, and in particular to a ventilation and heat dissipation device for a high-voltage interconnection cabinet. Background Technology

[0002] High-voltage interconnection cabinets are critical equipment in power systems used to connect different power sources or power circuits. They are widely used in substations, distribution rooms, and industrial power systems, undertaking important functions such as power distribution, circuit switching, and system protection. Because they integrate a large number of high-voltage electrical components (such as circuit breakers, disconnectors, and instrument transformers), they generate a significant amount of heat during prolonged operation. If this heat cannot be dissipated in time, the internal temperature of the cabinet will rise, affecting the stable operation of the equipment and even causing safety hazards such as short circuits, insulation aging, and malfunctions. Therefore, equipping high-voltage interconnection cabinets with efficient and reliable ventilation and heat dissipation devices is particularly important to ensure their normal operation and extend their service life.

[0003] Utility model patent CN214673798U discloses a ventilated and heat-dissipating high-voltage electrical cabinet. Its structure includes a support frame, a cabinet body, a heat dissipation box, and a heat dissipation box assembly. The heat dissipation box assembly consists of a blower, cooling rings, and spiral guide plates. Coolant is used to cool the air entering the cabinet, and a second blower delivers the cooled air into the cabinet, thereby achieving heat dissipation. This device improves the heat dissipation efficiency of the high-voltage electrical cabinet to a certain extent and has advantages such as ingenious structure and convenient operation.

[0004] However, the method of using coolant to directly participate in air cooling in this patent carries significant risks. If the cooling ring or cooling pipe is damaged due to material aging, vibration, or improper installation, the coolant may leak into the heat sink or even into the high-voltage cabinet, corroding the high-voltage electrical components inside. This could lead to a decrease in the insulation performance of the equipment, or even serious safety accidents such as short circuits and arc discharges.

[0005] Therefore, to address the shortcomings of existing technologies, we urgently need a ventilation and heat dissipation device for high-voltage interconnection cabinets. This new device should achieve efficient heat dissipation without the use of coolant, avoiding safety hazards caused by coolant leakage, while better meeting the comprehensive requirements of modern power systems for equipment operational safety, ease of maintenance, and environmental adaptability, providing strong support for the stable operation of high-voltage interconnection cabinets and the sustainable development of power systems. Utility Model Content

[0006] The purpose of this invention is to provide a ventilation and heat dissipation device for a high-voltage interconnection cabinet, solving the significant risks associated with the existing method of directly cooling the air with coolant. If the cooling ring or cooling pipe is damaged due to material aging, vibration, or improper installation, the coolant may leak into the heat dissipation box or even into the high-voltage cabinet, corroding the high-voltage electrical components inside. This can lead to a decrease in the equipment's insulation performance or, in severe cases, cause serious safety accidents such as short circuits and arc discharges.

[0007] To achieve the above objectives, this utility model provides a ventilation and heat dissipation device for a high-voltage interconnection cabinet, including a high-voltage cabinet and a mounting bracket installed inside the high-voltage cabinet. Mounting grooves are provided at the center of both sides of the high-voltage cabinet, and lifting grooves are provided at the top and bottom of the mounting grooves. An exhaust fan is installed on the top of the high-voltage cabinet. The mounting slot is equipped with a lifting plate. The top and bottom ends of the lifting plate are slidably engaged with the interior of the adjacent lifting slot. A cooling fan is installed at the center of one side of the lifting plate. Both sides of the high-voltage switchgear are equipped with a vertical reciprocating moving structure that cooperates with the lifting plate.

[0008] The lifting groove has guide rods on both sides inside, and the lifting plate has sliding holes at both ends that are adapted to the guide rods.

[0009] The vertical reciprocating moving structure includes two mounting plates and a reciprocating screw rotatably connected between the two mounting plates. A drive motor for driving the reciprocating screw is installed at the bottom of the mounting plate. A U-shaped frame connected to the side wall of the lifting plate is provided on one side of the cooling fan. A moving plate that is threadedly engaged with the reciprocating screw is connected to one side of the U-shaped frame.

[0010] One end of each of the two guide rods is fixedly connected to a fixing plate, and the top of the fixing plate is bolted to the inner wall of the lifting groove.

[0011] One end of the mounting plate is fixedly connected to a connecting bracket, and one end of the connecting bracket is fixedly connected to the side wall of the high-voltage cabinet with bolts.

[0012] A connecting plate is provided between the two mounting plates, and both ends of the connecting plate are bolted to the adjacent mounting plate.

[0013] This utility model discloses a ventilation and heat dissipation device for a high-voltage interconnection cabinet. Through lifting plates and cooling fans located on both sides of the high-voltage cabinet, combined with a vertical reciprocating moving structure, the cooling fans periodically move along the cabinet's height, allowing cool air to cover the entire internal space of the cabinet, significantly improving the uniformity and efficiency of ventilation and heat dissipation. Secondly, this device uses air entirely as the heat dissipation medium, eliminating the leakage risks associated with using coolant in existing technologies. This fundamentally avoids safety hazards such as coolant corrosion of electrical components, decreased insulation performance, and even short circuits, improving the safety and reliability of equipment operation. Simultaneously, the synergistic effect of the exhaust fan and cooling fan forms an active ventilation circulation system, increasing airflow speed and heat exchange efficiency, meeting the requirements for long-term stable operation of the high-voltage interconnection cabinet under high load and high temperature environments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the cooling fan and exhaust fan according to an embodiment of the present utility model.

[0017] Figure 3 This is a structural schematic diagram of the mounting groove and lifting groove according to an embodiment of the present utility model.

[0018] Figure 4 This is a structural schematic diagram of the U-shaped frame and the cooling fan according to an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the drive motor and reciprocating lead screw according to an embodiment of the present invention.

[0020] In the diagram: 1. High-voltage switchgear; 2. Lifting plate; 3. Mounting bracket; 4. Cooling fan; 5. Mounting plate; 6. Connecting bracket; 7. Exhaust fan; 8. Mounting slot; 9. Lifting slot; 10. Moving plate; 11. U-shaped frame; 12. Sliding hole; 13. Guide rod; 14. Fixing plate; 15. Drive motor; 16. Connecting plate; 17. Reciprocating lead screw. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Example 1: Please refer to Figure 1-5 As shown, a ventilation and heat dissipation device for a high-voltage interconnection cabinet in this embodiment includes a high-voltage cabinet 1 and a mounting bracket 3 installed inside the high-voltage cabinet 1. Mounting grooves 8 are provided at the center of both sides of the high-voltage cabinet 1. Lifting grooves 9 are provided at the top and bottom of the mounting grooves 8. An exhaust fan 7 is installed on the top of the high-voltage cabinet 1. The interior of the mounting slot 8 is provided with a lifting plate 2. The top and bottom ends of the lifting plate 2 are slidably engaged with the interior of the adjacent lifting slot 9. A cooling fan 4 is installed at the center of one side of the lifting plate 2. Both sides of the high-voltage cabinet 1 are equipped with vertical reciprocating moving structures that cooperate with the lifting plate 2.

[0023] The workflow is as follows: Electrical components are installed on the mounting frame 3 inside the high-voltage cabinet 1. During operation, the heat generated needs to be dissipated in a timely manner. At this time, the exhaust fan 7 installed on the top of the high-voltage cabinet 1 is started, drawing the rising hot air inside the cabinet upwards to form an airflow channel from bottom to top. At the same time, a lifting plate 2 is installed inside the mounting groove 8 opened at the center of both sides of the high-voltage cabinet 1. The top and bottom ends of the lifting plate 2 slide and fit in the lifting groove 9 opened at the top and bottom of the mounting groove 8, respectively. The lifting plate 2 is driven to move up and down by an externally driven vertical reciprocating moving structure. A cooling fan 4 is installed at the center of one side of the lifting plate 2. During the lifting process, the cooling fan 4 continuously draws in the cold air outside the cabinet and blows it towards the key heat-generating areas inside the cabinet to achieve directional cooling of the electrical components. With the continuous exhaust of the exhaust fan 7 and the reciprocating airflow of the cooling fan 4, a continuous circulating ventilation path is formed inside and outside the cabinet, thereby effectively reducing the temperature inside the cabinet and ensuring stable operation of the equipment.

[0024] Example 2: Please refer to Figure 1-5 As shown in this embodiment, a ventilation and heat dissipation device for a high-voltage communication cabinet has guide rods 13 on both sides of the inside of the lifting groove 9, and sliding holes 12 adapted to the guide rods 13 are opened at both ends of the lifting plate 2. Specifically, through the cooperation of the guide rods 13 and the sliding holes 12, the guide rods 13 are fixedly installed on both sides inside the lifting groove 9, and the sliding holes 12 are opened at both ends of the lifting plate 2. The lifting plate 2 slides up and down along the guide rods 13 under the drive of the vertical reciprocating moving structure, which achieves the effect of improving the running stability and guiding accuracy of the lifting plate 2, ensuring that the cooling fan 4 maintains stable operation during the lifting process, and avoiding wind direction deviation or structural wear caused by shaking.

[0025] One end of each of the two guide rods 13 is fixedly connected to a fixing plate 14. The top of the fixing plate 14 is bolted to the inner wall of the lifting groove 9. Specifically, through the cooperation between the fixing plate 14 and the guide rod 13, the fixing plate 14 is fixedly connected to one end of the guide rod 13 and connected to the inner wall of the lifting groove 9 by bolts. This achieves the effect of enhancing the installation firmness of the guide rod 13 and improving the guiding stability of the lifting plate 2, further ensuring the stability of the cooling fan 4 during operation.

[0026] Example 3: Please refer to Figure 1-5 As shown, the ventilation and heat dissipation device of a high-voltage interconnection cabinet in this embodiment includes a vertical reciprocating moving structure comprising two mounting plates 5 and a reciprocating screw 17 rotatably connected between the two mounting plates 5. A drive motor 15 for driving the reciprocating screw 17 is installed at the bottom of the mounting plates 5. A U-shaped frame 11 connected to the side wall of the lifting plate 2 is provided on one side of the cooling fan 4. A moving plate 10 threadedly engaged with the reciprocating screw 17 is connected to one side of the U-shaped frame 11. Specifically, through the cooperative arrangement of the mounting plates 5, the reciprocating screw 17, the drive motor 15, the U-shaped frame 11, and the moving plate 10, the mounting plates 5 are fixed on both sides of the high-voltage cabinet 1, the reciprocating screw 17 is rotatably connected between the two mounting plates 5, and the drive motor 15 drives it to rotate. The moving plate 10 is threadedly engaged with the reciprocating screw 17 and connected to the lifting plate 2 through the U-shaped frame 11. Under the drive of the drive motor 15, the lifting plate 2 is moved up and down reciprocally, achieving the effect of periodically moving the cooling fan 4 in the cabinet height direction and achieving uniform air supply, thereby improving the overall heat dissipation efficiency.

[0027] One end of the mounting plate 5 is fixedly connected to a connecting bracket 6. One end of the connecting bracket 6 is fixedly connected to the side wall of the high-voltage cabinet 1 with bolts. Specifically, through the cooperation between the connecting bracket 6 and the mounting plate 5, one end of the connecting bracket 6 is fixedly connected to the mounting plate 5, and the other end is fixedly connected to the side wall of the high-voltage cabinet 1 with bolts. This achieves the effect of enhancing the connection strength between the mounting plate 5 and the high-voltage cabinet 1, improving the overall stability of the vertical reciprocating moving structure, and ensuring that the drive components do not loosen or shift during operation.

[0028] A connecting plate 16 is provided between the two mounting plates 5. Both ends of the connecting plate 16 are bolted to the adjacent mounting plates 5. Specifically, by cooperating with the mounting plates 5, the connecting plate 16 is placed between the two mounting plates 5 and is fixedly connected to the adjacent mounting plates 5 by bolts. This enhances the structural rigidity and overall stability between the two mounting plates 5, prevents vibration and deformation during the operation of the drive motor 15, further ensures the stable operation of the cooling fan 4, and improves the reliability and service life of the device.

[0029] The working process of the ventilation and heat dissipation device of the high-voltage interconnection cabinet is as follows: High-voltage electrical components are installed on the mounting bracket 3 inside the high-voltage cabinet 1. During operation, the heat generated needs to be dissipated in time. At this time, the exhaust fan 7 installed on the top of the high-voltage cabinet 1 is started to draw the rising hot air inside the cabinet upward, forming an airflow channel from bottom to top. At the same time, a lifting plate 2 is installed inside the mounting groove 8 opened at the center of both sides of the high-voltage cabinet 1. The top and bottom ends of the lifting plate 2 are slidably engaged in the lifting groove 9 opened at the top and bottom of the mounting groove 8, respectively. The lifting plate 2 is guided and slid by the guide rod 13 on both sides inside the lifting groove 9 and the sliding hole 12 at both ends of the lifting plate 2 to ensure the smooth operation of the lifting plate 2. A cooling fan 4 is installed at the center of one side of the lifting plate 2. Its operation can draw in external cold air and blow it to the key heat-generating area inside the cabinet. The up and down reciprocating motion of the lifting plate 2 is driven by a vertical reciprocating moving structure, which includes two mounting plates 5 installed on both sides of the high-voltage cabinet 1. The mounting plates 5 are rotatably connected to each other. A reciprocating screw 17 is mounted at its bottom with a drive motor 15 to drive its rotation. One side of the cooling fan 4 is connected to the lifting plate 2 via a U-shaped frame 11, and the other side of the U-shaped frame 11 is connected to a movable plate 10 that is threaded into the reciprocating screw 17. Thus, under the drive of the drive motor 15, the lifting plate 2 moves up and down reciprocally. One end of the guide rod 13 is bolted to the inner wall of the lifting groove 9 via a fixing plate 14, enhancing the installation firmness of the guide rod 13. One end of the mounting plate 5 is bolted to the side wall of the high-voltage cabinet 1 via a connecting bracket 6, improving the overall structural stability. A connecting plate 16 is also provided between the two mounting plates 5, with both ends bolted to the mounting plates 5, further enhancing the structural rigidity and preventing vibration deformation during the operation of the drive motor 15. Under the combined action of the continuous exhaust fan 7 and the periodic up-and-down movement of the cooling fan 4, a continuous circulating ventilation path is formed inside and outside the cabinet, thereby achieving efficient and uniform heat dissipation of the electrical components inside the high-voltage cabinet 1 and ensuring stable operation of the equipment.

[0030] The beneficial effects of this device are as follows: The combined action of the exhaust fan 7 and the cooling fan 4 forms an active ventilation circulation system, significantly improving ventilation and heat dissipation efficiency; the cooling fan 4, driven by the vertical reciprocating moving structure, moves periodically along the cabinet height, allowing cold air to cover the entire internal space of the cabinet, improving heat dissipation uniformity; the cooperation between the guide rod 13 and the sliding hole 12 improves the stability and guiding accuracy of the lifting plate 2, preventing wind direction deviation or structural wear due to shaking; the cooperation of the mounting plate 5, reciprocating screw 17, drive motor 15, U-shaped frame 11, and moving plate 10 in the vertical reciprocating moving structure achieves stable reciprocating motion of the cooling fan 4, improving air delivery efficiency and heat dissipation effect; the fixed plate 14 enhances the installation strength of the guide rod 13, the connecting bracket 6 improves the connection stability between the mounting plate 5 and the high-voltage cabinet 1, and the connecting plate 16 enhances the structural rigidity between the mounting plates 5, preventing vibration deformation, thereby improving the overall reliability and service life of the device.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A ventilation and heat dissipation device for a high-voltage interconnection cabinet, characterized in that, include: The high-voltage switchgear includes a mounting rack installed inside it. Mounting slots are located at the center of both sides of the high-voltage switchgear, and lifting slots are located at the top and bottom of each mounting slot. An exhaust fan is installed on the top of the high-voltage switchgear. The mounting slot is equipped with a lifting plate. The top and bottom ends of the lifting plate are slidably engaged with the interior of the adjacent lifting slot. A cooling fan is installed at the center of one side of the lifting plate. Both sides of the high-voltage switchgear are equipped with a vertical reciprocating moving structure that cooperates with the lifting plate.

2. The ventilation and heat dissipation device for a high-voltage interconnection cabinet according to claim 1, characterized in that, Guide rods are provided on both sides of the inside of the lifting groove, and sliding holes adapted to the guide rods are opened at both ends of the lifting plate.

3. The ventilation and heat dissipation device for a high-voltage interconnection cabinet according to claim 1, characterized in that, The vertical reciprocating moving structure includes two mounting plates and a reciprocating lead screw rotatably connected between the two mounting plates. A drive motor for driving the reciprocating lead screw is installed at the bottom of the mounting plate. A U-shaped frame connected to the side wall of the lifting plate is provided on one side of the cooling fan. A moving plate that is threadedly engaged with the reciprocating lead screw is connected to one side of the U-shaped frame.

4. The ventilation and heat dissipation device for a high-voltage interconnection cabinet according to claim 2, characterized in that, One end of each of the two guide rods is fixedly connected to a fixing plate, and the top of the fixing plate is bolted to the inner wall of the lifting groove.

5. The ventilation and heat dissipation device for a high-voltage interconnection cabinet according to claim 3, characterized in that, One end of the mounting plate is fixedly connected to a connecting bracket, and one end of the connecting bracket is fixedly connected to the side wall of the high-voltage cabinet with bolts.

6. The ventilation and heat dissipation device for a high-voltage interconnection cabinet according to claim 5, characterized in that, A connecting plate is provided between the two mounting plates, and both ends of the connecting plate are bolted to the adjacent mounting plate.

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