Modular air cooling device for high-voltage cabinet and high-voltage cabinet

Abstract

The invention relates to the technical field of high-voltage cabinets, in particular to a modular air cooling device for high-voltage cabinets and the high-voltage cabinets, the modular air cooling device comprises a base, the base is mounted and lapped above the two high-voltage cabinets, two side plates of the high-voltage cabinets are both provided with a plurality of mounting ports, temperature sensors are mounted in the high-voltage cabinets, a connecting seat is mounted above the base, and the connecting seat is connected with the base. A plurality of reserved openings are formed in the bottom surface of the connecting seat, two pumping and discharging frames are fixedly inserted into the bottom surface of the base, insertion pipes are fixedly inserted into the surfaces of the pumping and discharging frames, the insertion pipes are inserted into the mounting openings, and the ends, extending into the high-voltage cabinet, of the insertion pipes are in threaded connection with threaded sleeves in a sleeving mode; the beneficial effects of the invention are that the pumping rack not only plays a role in heat dissipation, but also realizes connection and spacing of two high-voltage cabinets. The two pumping and arranging frames are connected through the reinforcing connecting plate to form a stable structure, when high-voltage cabinets are arranged side by side, the high-voltage cabinets can be effectively prevented from shaking or shifting, and the overall stability and safety of equipment are improved.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switchgear technology, specifically to a modular air-cooling device and a high-voltage switchgear for use in high-voltage switchgear. Background Technology

[0002] In power systems, high-voltage switchgear is a critical piece of equipment, undertaking important functions such as power distribution, control, and protection. Due to the dense internal components and high operating current of the switchgear, it generates a significant amount of heat during operation. If this heat cannot be dissipated effectively and promptly, the internal temperature will rise, accelerating component aging, reducing equipment reliability, and potentially even causing equipment failure or safety accidents.

[0003] Traditional high-voltage switchgear cooling primarily relies on natural heat dissipation, utilizing air convection through ventilation holes in the cabinet for heat exchange. However, this method has low cooling efficiency, especially under high-temperature environments or high-load operating conditions, making it difficult to meet the cooling requirements of high-voltage switchgear. While some high-voltage switchgear employs forced air cooling, this typically involves directly installing exhaust fans on the cabinet, which has the following drawbacks: The exhaust fan's intake and exhaust paths are not optimized, failing to effectively guide the flow of hot air inside the cabinet, resulting in uneven heat dissipation and high temperature accumulation in some areas. During operation, the exhaust fan draws external dust into the cabinet; dust accumulation on component surfaces affects heat dissipation and can even cause short circuits. Traditional cooling methods lack effective dust prevention and cleaning mechanisms. Summary of the Invention

[0004] The purpose of this invention is to provide a modular air-cooled device and a high-voltage switchgear for use in high-voltage switchgear, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a modular air-cooling device for a high-voltage switchgear, comprising a base, the base being mounted on top of two high-voltage switchgears, multiple mounting ports being provided on both side plates of the high-voltage switchgear, and a temperature sensor being installed inside the high-voltage switchgear, a connecting seat being mounted on top of the base, multiple reserved openings being provided on the bottom surface of the connecting seat, two drawer racks being inserted and fixed to the bottom surface of the base, and insert tubes being inserted and fixed to the surface of the drawer racks, the insert tubes being inserted into the mounting ports, and a threaded sleeve being fitted onto one end of the insert tube extending into the high-voltage switchgear; An exhaust fan is installed inside the connector, and a pressure plate is inserted into the top of the exhaust fan to limit its movement. A hanging bracket is fixed to the top surface of the pressure plate, and a brush plate is rotatably connected to the bottom of the hanging bracket. The bristles of the brush plate contact the protective net of the exhaust fan. A connecting ring is fixed to the top surface of the pressure plate.

[0006] Preferably, a groove is formed on the top surface of the base, and a first rubber pad is fixed on the top surface of the base. The first rubber pad is in the shape of an annular plate and is clamped between the connecting seat and the base. The connecting seat is in the shape of a "convex" circular frame. Multiple through holes are formed on the bottom surface of the connecting seat, and screws are inserted into the through holes. The bottom ends of the screws are fixed on the bottom surface of the base, and nuts are sleeved and screwed on the top ends of the screws.

[0007] Preferably, a support plate is fixed on the inner wall of the connecting seat, and the exhaust fan is lapped on the support plate. The pressing plate is in the shape of a "convex" circular ring plate. Multiple screws are screwed on the top surface of the pressing plate. After passing through the pressing plate, the screws are screwed on the top surface of the connecting seat. A second rubber pad is fixed at the bottom end of the pressing plate, and the second rubber pad is clamped between the pressing plate and the exhaust fan.

[0008] Preferably, two symmetrically distributed elastic hanging pieces are fixed on the side wall of the pressing plate. A clamping bar is fixed at the bottom end of the elastic hanging piece. The clamping bar is inserted into a clamping groove formed on the outer wall of the connecting seat. The clamping groove is in the shape of an annular groove, and the clamping bar is an arc bar with a right trapezoidal end face. A pull ring is fixed on the outer ring surface of the elastic hanging piece.

[0009] Preferably, the suspension frame is in the shape of a "cross" plate structure, and a servo motor is fixed on the top surface of the suspension frame. The rotating shaft of the servo motor passes through the suspension frame and is fixed on the top surface of the brush plate.

[0010] Preferably, the exhaust extraction frame is in the shape of a square cylinder, the slot opening of the exhaust extraction frame faces upward, and the slot opening of the exhaust extraction frame is located in the groove of the base. Multiple reinforcing connecting plates are fixed between the two exhaust extraction frames. The reinforcing connecting plates are in the shape of an "X" plate structure.

[0011] Preferably, a ventilation hood is inserted into the installation opening on one side of the high-voltage cabinet. The ventilation hood is in the shape of a "T" cylinder. Multiple air holes are formed on the surface of the ventilation hood. One end of the ventilation hood is sleeved and fixed with a rubber ring. The outer diameter of the rubber ring is larger than the aperture of the installation opening, and the rubber ring abuts against one side of the inner wall of the high-voltage cabinet.

[0012] Preferably, an external thread is provided on the outer ring surface of the end of the insertion tube away from the exhaust extraction frame. The external thread is in threaded connection with the internal thread provided on the inner ring opening of the wire sleeve. A gasket is sleeved on the tube body of the insertion tube, and the gasket is clamped between the high-voltage cabinet and the wire sleeve.

[0013] A high-voltage cabinet includes a modular air cooling device for the high-voltage cabinet.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention proposes a modular air-cooled device and high-voltage switchgear for high-voltage switchgear. Through a special design of the exhaust rack and pipes, an effective hot air extraction channel is formed. After the exhaust fan is activated, it quickly transports hot air from inside the high-voltage switchgear upwards through the pipes and exhaust rack, and then discharges it outside the switchgear via the exhaust pipe. This design optimizes the air intake and exhaust paths, ensuring good air circulation within the switchgear, preventing localized high-temperature accumulation, significantly improving heat dissipation efficiency, and ensuring the high-voltage switchgear maintains a suitable operating temperature under various conditions. While employing forced air cooling, the surface of the high-voltage switchgear still retains natural ventilation holes (except for the mounting openings), forming a multi-mode heat dissipation system combining natural and forced air cooling. This design further enhances the heat dissipation capacity of the high-voltage switchgear, ensuring that heat dissipation requirements are met under different environmental conditions.

[0015] The drawer racks not only serve a heat dissipation function but also provide connection and positioning for the two high-voltage switchgear units. The two drawer racks are connected by reinforcing plates, forming a stable structure that effectively prevents the high-voltage switchgear units from shaking or shifting when placed side-by-side, thus improving the overall stability and safety of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Sectional view of the structure at point AA; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point B; Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point C; Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point D; Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point E in the middle; Figure 7 This is a schematic diagram of the connection structure between the base and the reinforcing connecting plate of the present invention; Figure 8 This is a schematic diagram of the pressure plate structure of the present invention; Figure 9 This is a schematic diagram of the connector structure of the present invention.

[0017] In the diagram: Base 1, Rubber Pad 101, Screw 102, Nut 103, Connecting Seat 2, Reserved Opening 201, Through Hole 202, Support Plate 203, Slot 204, Exhaust Fan 3, Pressure Plate 4, Rubber Pad 2 401, Connecting Ring 402, Elastic Hanger 403, Clip 404, Pull Ring 405, Suspension Frame 5, Servo Motor 501, Brush Plate 502, High Voltage Cabinet 6, Mounting Port 601, Ventilation Hood 602, Rubber Ring 603, Air Hole 604, Exhaust Rack 7, Insert Pipe 701, Threaded Sleeve 702, Reinforcing Connecting Plate 703, Temperature Sensor 8. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1 to 9 This invention provides a technical solution: a modular air-cooled device for a high-voltage switchgear, comprising a base 1, which is mounted on top of two high-voltage switchgear 6. Multiple mounting ports 601 are provided on both side plates of the high-voltage switchgear 6, and a temperature sensor 8 is installed inside the high-voltage switchgear 6. A connecting seat 2 is mounted on top of the base 1, and multiple reserved openings 201 are provided on the bottom surface of the connecting seat 2. Two drawer racks 7 are inserted and fixed to the bottom surface of the base 1. Inserted tubes 701 are inserted and fixed to the surface of the drawer racks 7, and the inserted tubes 701 are inserted into the mounting ports 601. A threaded sleeve 702 is screwed onto one end of the inserted tube 701 extending into the high-voltage switchgear 6. The drawer racks 7 are square cylinders with their slots facing upwards, and the slots of the drawer racks 7 are located in the grooves of the base 1. In the middle, multiple reinforcing connecting plates 703 are fixed between the two drawer racks 7. The reinforcing connecting plates 703 are in the form of an "X" shaped plate structure. A ventilation hood 602 is inserted into the mounting port 601 on one side of the high-voltage cabinet 6. The ventilation hood 602 is in the form of a "T" shaped cylinder. Multiple air holes 604 are opened on the surface of the ventilation hood 602. A rubber ring 603 is fixed on one end of the ventilation hood 602. The outer diameter of the rubber ring 603 is larger than the diameter of the hole in the mounting port 601. The rubber ring 603 abuts against one side of the inner wall of the high-voltage cabinet 6. The insertion tube 701 has an external thread on the outer ring surface at the end away from the drawer rack 7. The external thread and the internal thread set in the inner ring of the threaded sleeve 702 are connected. A gasket is fitted on the tube body of the insertion tube 701. The gasket is clamped between the high-voltage cabinet 6 and the threaded sleeve 702.

[0020] The high-voltage cabinet 6 is a known prior art, and this application document does not limit it. When the two high-voltage cabinets 6 are placed, a space is reserved. After the base 1 is lapped on the tops of the two high-voltage cabinets 6, the two high-voltage cabinets 6 are pushed, so that the insertion tubes 701 on the surfaces of the two exhaust frames 7 are respectively inserted into the installation openings 601 on the surfaces of the two high-voltage cabinets 6. Subsequently, the wire sleeves 702 and gaskets are sleeved and screwed onto the corresponding insertion tubes 701 from the inside of the high-voltage cabinet 6 to lock them. At this time, the two exhaust frames 7 are clamped between the two high-voltage cabinets 6, realizing the connection after the two high-voltage cabinets 6 are placed side by side, that is, the exhaust frame 7 realizes the connection and limiting function of the two high-voltage cabinets 6. It should be noted that natural heat dissipation holes other than the installation openings 601 are still reserved on the surface of the high-voltage cabinet 6 to meet the daily heat dissipation of the high-voltage cabinet 6.

[0021] In order to accelerate the external dissipation of the heat inside the high-voltage cabinet 6, it is proposed that: An exhaust fan 3 is installed inside the connection seat 2. A pressing plate 4 is inserted into the top of the exhaust fan 3, and the pressing plate 4 limits the exhaust fan 3. A groove is opened on the top surface of the base 1, and a rubber pad 101 is fixed on the top surface of the base 1. The rubber pad 101 is in the shape of an annular plate, and the rubber pad 101 is clamped between the connection seat 2 and the base 1. The connection seat 2 is in the shape of a "convex" circular frame. A plurality of through holes 202 are opened on the bottom surface of the connection seat 2. A screw rod 102 is inserted into the through holes 202. The bottom end of the screw rod 102 is fixed on the bottom surface of the base 1, and a nut 103 is sleeved and screwed on the top end of the screw rod 102. A support plate 203 is fixed on the inner wall of the connection seat 2, and the exhaust fan 3 is lapped on the support plate 203. The pressing plate 4 is in the shape of a "convex" circular ring plate. A plurality of screws are screwed on the top surface of the pressing plate 4. The screws penetrate through the pressing plate 4 and are screwed on the top surface of the connection seat 2. A rubber pad 401 is fixed at the bottom end of the pressing plate 4, and the rubber pad 401 is clamped between the pressing plate 4 and the exhaust fan 3. Two symmetrically distributed elastic hanging pieces 403 are fixed on the side wall of the pressing plate 4. A clamping strip 404 is fixed at the bottom end of the elastic hanging piece 403. The clamping strip 404 is inserted into a clamping groove 204 opened on the outer wall of the connection seat 2. The clamping groove 204 is in the shape of an annular groove, and the clamping strip 404 is an arc strip with a right-angled trapezoid end face. A pull ring 405 is fixed on the outer ring surface of the elastic hanging piece 403.

[0022] After the connection seat 2 is fixed above the base 1 through the screw rod 102 and the nut 103, the exhaust fan 3 is placed on the support plate 203. Subsequently, the pressing plate 4 is inserted into the connection seat 2. At this time, the clamping strip 404 is inserted into the clamping groove 204, realizing the traction of the pressing plate 4. At this time, the exhaust fan 3 is tightly clamped between the pressing plate 4 and the support plate 203. In order to further prevent the exhaust fan 3 from falling off, the pressing plate 4 can be fixed on the top of the connection seat 2 by screws; (8) The temperature inside the high-voltage cabinet is monitored in real time. When the temperature reaches the set value, the exhaust fan 3 is triggered to work. After the exhaust fan 3 starts, the hot air in the high-voltage cabinet 6 is sent upward through the exhaust frame 7 and the insertion tube 701. The exhaust pipe is sleeved and installed on the connection ring 402 in advance. In this way, the exhausted hot air enters the exhaust pipe and is sent outwards.

[0023] To ensure the ventilation efficiency of exhaust fan 3, the following measures were proposed: A suspension bracket 5 is fixed to the top surface of the pressure plate 4. A brush plate 502 is rotatably connected to the bottom of the suspension bracket 5. The bristles of the brush plate 502 are in contact with the protective net of the exhaust fan 3. A connecting ring 402 is fixed to the top surface of the pressure plate 4. The suspension bracket 5 has a cross-shaped plate structure. A servo motor 501 is fixed to the top surface of the suspension bracket 5. The shaft of the servo motor 501 passes through the suspension bracket 5 and is fixed to the top surface of the brush plate 502.

[0024] The servo motor 501 is pre-programmed and starts working for five minutes at a timer (can be set to once every three days). The servo motor 501 drives the brush plate 502 to clean the mesh holes of the exhaust fan 3. Clogged mesh holes affect the air dissipation efficiency. It should be noted that the exhaust fan 3 is in working condition during cleaning, so the dust swept off enters the exhaust pipe and is discharged with the hot air discharged by the exhaust fan 3.

[0025] Instructions for using modular air-cooled units for high-voltage switchgear: The high-voltage cabinet 6 is placed and overlapped with the base 1; two high-voltage cabinets 6 are placed side by side, leaving sufficient installation space. The base 1 is placed on top of the two high-voltage cabinets 6, ensuring that the bottom surface of the base 1 is in stable contact with the top of the high-voltage cabinet 6. The two high-voltage cabinets 6 are pushed together so that the insertion tubes 701 on the surface of the drawer rack 7 are inserted into the mounting openings 601 on the side plates of the high-voltage cabinets 6. From the inside of the high-voltage cabinet 6, the threaded sleeve 702 and the gasket are fitted onto the insertion tube 701, and the threaded sleeve 702 is tightened so that the gasket is clamped between the side plate of the high-voltage cabinet 6 and the threaded sleeve 702, thus achieving a fixed connection between the drawer rack 7 and the high-voltage cabinet 6. It is confirmed that the two drawer racks 7 are securely connected by the reinforcing connecting plate 703, forming a limiting effect on the two high-voltage cabinets 6. The ventilation hood 602 is inserted into the mounting opening 601 on the side plate of the high-voltage cabinet 6. At the same time, natural heat dissipation holes are retained to meet daily heat dissipation needs.

[0026] Place the connecting seat 2 above the base 1, allowing the screw 102 to pass through the through hole 202 on the bottom surface of the connecting seat 2. Fit the nut 103 onto the top of the screw 102 and tighten it to fix the connecting seat 2 onto the base 1. Ensure that the rubber pad 101 is clamped between the connecting seat 2 and the base 1, providing shock absorption and sealing. Place the exhaust fan 3 on the support plate 203 on the inner wall of the connecting seat 2. Insert the pressure plate 4 into the connecting seat 2, allowing the retaining strip 404 at the bottom of the elastic hanging piece 403 to engage with the retaining groove 204 on the outer wall of the connecting seat 2, achieving initial fixation of the pressure plate 4. Ensure that the rubber pad 201 is clamped between the pressure plate 4 and the exhaust fan 3 to reduce vibration and noise. Use a screw to penetrate the pressure plate 4 and screw it into the top surface of the connecting seat 2 to further fix the pressure plate 4, ensuring that the exhaust fan 3 is tightly clamped between the pressure plate 4 and the support plate 203.

[0027] Fix the suspension bracket 5 to the top surface of the pressure plate 4. Install the servo motor 501 on the top surface of the suspension bracket 5, and fix its shaft through the suspension bracket 5 to the top surface of the brush plate 502. Adjust the position of the brush plate 502 so that its bristles are in contact with the protective mesh of the exhaust fan 3. Pre-fit the exhaust pipe onto the connecting ring 402 on the top surface of the pressure plate 4 to ensure a sealed connection between the exhaust pipe and the device.

[0028] Temperature sensor 8 inside the high-voltage cabinet 6 monitors the temperature in real time. When the temperature reaches the set value, it triggers the exhaust fan 3 to start, which transports the hot air inside the high-voltage cabinet 6 upwards to the connecting seat 2 through the exhaust rack 7 and the insertion pipe 701. After being discharged by the exhaust fan 3, the hot air is transported outwards through the exhaust pipe. The servo motor 501 starts according to a preset program and works for five minutes. The servo motor 501 drives the brush plate 502 to rotate, cleaning the mesh of the exhaust fan 3's protective screen to prevent dust from clogging and affecting the airflow efficiency. During cleaning, the exhaust fan 3 remains operational, and the swept-down dust is discharged through the exhaust pipe along with the hot air.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular air cooling device for high-voltage cabinets, comprising a base (1) mounted on top of two high-voltage cabinets (6), a plurality of mounting holes (601) are formed on each side plate of the high-voltage cabinets (6), and a temperature sensor (8) is installed inside the high-voltage cabinets (6), characterized in that: The upper part of the base (1) is provided with a connecting seat (2), the bottom surface of the connecting seat (2) is provided with a plurality of reserved openings (201), the bottom surface of the base (1) is fixedly provided with two exhaust racks (7), the surface of the exhaust rack (7) is fixedly provided with a plug pipe (701), the plug pipe (701) is inserted into the mounting opening (601), and one end of the plug pipe (701) extending into the high-voltage cabinet (6) is provided with a screw sleeve (702). The inside of the connecting seat (2) is provided with an exhaust fan (3), the top of the exhaust fan (3) is provided with a pressing plate (4), and the pressing plate (4) limits the exhaust fan (3). The top surface of the pressing plate (4) is fixedly provided with a hanging rack (5), the lower part of the hanging rack (5) is rotatably connected with a brush plate (502), the bristles of the brush plate (502) are in contact with the protective net of the exhaust fan (3), and the top surface of the pressing plate (4) is fixedly provided with a connecting ring (402).

2. A modular air cooling device for high voltage cabinets according to claim 1, characterized in that: The top surface of the base (1) is provided with a groove, the top surface of the base (1) is fixedly provided with a rubber pad one (101), the rubber pad one (101) is in the form of an annular plate structure, the rubber pad one (101) is clamped between the connecting seat (2) and the base (1), the connecting seat (2) is in the form of a "convex" circular frame, the bottom surface of the connecting seat (2) is provided with a plurality of through holes (202), the inside of the through hole (202) is provided with a screw rod (102), the bottom end of the screw rod (102) is fixed to the bottom surface of the base (1), and the top end of the screw rod (102) is provided with a screw sleeve (103).

3. A modular air cooling device for high voltage cabinets according to claim 1, characterized in that: The inner wall of the connecting seat (2) is fixedly provided with a supporting plate (203), the exhaust fan (3) is overlapped on the supporting plate (203), the pressing plate (4) is in the form of a "convex" circular ring plate, the top surface of the pressing plate (4) is provided with a plurality of screws, the screws are screwed on the top surface of the connecting seat (2) after penetrating through the pressing plate (4), and the bottom end of the pressing plate (4) is fixedly provided with a rubber pad two (401), the rubber pad two (401) is clamped between the pressing plate (4) and the exhaust fan (3).

4. A modular air cooling device for high voltage cabinets according to claim 1, characterized in that: The side wall of the pressing plate (4) is fixedly provided with two symmetrically distributed elastic hanging pieces (403), the bottom end of the elastic hanging piece (403) is fixedly provided with a clamping strip (404), the clamping strip (404) is inserted into the clamping groove (204) provided on the outer wall of the connecting seat (2), the clamping groove (204) is in the form of an annular groove, the clamping strip (404) is in the form of an arc strip with a straight angle trapezoidal end face, and the outer ring surface of the elastic hanging piece (403) is fixedly provided with a pull ring (405).

5. A modular air cooling device for high voltage cabinets according to claim 1, characterized in that: The hanging rack (5) is in the form of a "cross" plate structure, the top surface of the hanging rack (5) is fixedly provided with a servo motor (501), and the rotating shaft of the servo motor (501) penetrates through the hanging rack (5) and is fixed to the top surface of the brush plate (502).

6. A modular air cooling device for high voltage cabinets according to claim 2, characterized in that: The exhaust rack (7) is in the form of a square cylinder, the notch of the exhaust rack (7) faces upward, the notch of the exhaust rack (7) is in the groove of the base (1), and a plurality of reinforcing connecting plates (703) are fixed between the two exhaust racks (7), and the reinforcing connecting plate (703) is in the form of an "X" plate structure.

7. A modular air cooling device for high voltage cabinets according to claim 1, characterized in that: The installation port (601) on one side of the high-voltage cabinet (6) is inserted with a ventilation cover (602), the ventilation cover (602) is a "T" shaped cylinder, a plurality of air holes (604) are formed on the surface of the ventilation cover (602), and a rubber ring (603) is fixedly sleeved on one end of the ventilation cover (602), the outer diameter of the rubber ring (603) is greater than the hole diameter of the installation port (601), and the rubber ring (603) abuts against one side of the inner wall of the high-voltage cabinet (6).

8. A modular air cooling device for high voltage cabinets according to claim 1, characterized in that: The outer thread is arranged on the outer ring surface of the cannula (701) away from the exhaust rack (7), the outer thread is connected with the inner thread arranged on the inner ring port of the silk cover (702), and the pipe body of the cannula (701) is sleeved with a gasket, and the gasket is clamped between the high-voltage cabinet (6) and the silk cover (702).

9. A high voltage cabinet characterized by: The modular air cooling device for the high-voltage cabinet comprises the modular air cooling device for the high-voltage cabinet according to any one of claims 1-8.

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