MCC cabinet with vortex fan heat dissipation module

By using wind deflectors, deflectors, and adaptive flow distribution structures in the MCC cabinet, the problems of airflow turbulence and jet entrainment effect are solved, achieving uniform airflow distribution and improved heat dissipation efficiency.

CN122393798APending Publication Date: 2026-07-14NINGBO LIXIN DISTRIBUTING CABINET WORKS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO LIXIN DISTRIBUTING CABINET WORKS
Filing Date
2026-06-05
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional MCC cabinets have difficulty creating uniform and directional airflow among densely packed components, resulting in turbulent airflow. The exhaust volume at the exhaust port far from the vortex fan is small, generating a jet entrainment effect and affecting heat dissipation efficiency.

Method used

The airflow discharged from the vortex fan is gathered and guided by a wind deflector and guide plate structure. Adaptive flow splitting is achieved by moving the wind deflector and mounting plate. Combined with threaded groove guidance and fixed arc plate guidance, the airflow is ensured to be evenly distributed, and the balance of the exhaust port is adjusted at different operating levels.

Benefits of technology

It significantly improves the uniformity of exhaust air from the top of the cabinet and the stability of heat dissipation, reduces energy loss, prevents hot air backflow interference, and improves overall heat dissipation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to MCC cabinet heat dissipation technical field, disclose a kind of MCC cabinet with vortex fan heat dissipation module, including cabinet, the top four corners of cabinet are all fixedly connected with bearing column, the top of bearing column is fixedly connected with heat dissipation cabinet top, the bottom side of heat dissipation cabinet top is equipped with several evenly arranged air outlet, the inner bottom wall of heat dissipation cabinet top is equipped with two sliding grooves, the inner wall between the two ends of two sliding grooves close to air inlet is all rotatably connected with mounting shaft, the mounting shaft is all rotatably connected with sleeve, the both ends of sleeve are all rolled with traction rope, the both ends of two traction ropes on each sleeve are all fixedly connected with sliding block, the top of two sliding blocks is fixedly connected with mounting plate, the side of mounting plate top close to air outlet is fixedly connected with baffle, this MCC cabinet with vortex fan heat dissipation module avoids the problem that the air exhaust capacity of air outlet far from vortex fan is small and generates jet flow entrainment effect.
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Description

Technical Field

[0001] This invention relates to the field of MCC cabinet heat dissipation technology, specifically to an MCC cabinet with a vortex fan heat dissipation module. Background Technology

[0002] The MCC cabinet integrates a large number of modules such as circuit breakers, contactors and frequency converters, which generate a lot of heat during operation. Traditional natural ventilation or top axial flow fan cooling methods are difficult to form a uniform and directional airflow among the dense components, which can easily lead to short circuits or stagnation. The vortex fan is a new type of fan. Its airflow enters the side annular flow channel from the bottom air inlet, and is "pushed" and "thrown" out by the impeller blades multiple times to form a vortex-shaped high-speed flow, and finally discharged at high speed from the side air outlet. To improve the heat dissipation efficiency of MCC cabinets, there are now modular cabinet top heat dissipation structures that combine with vortex fans. Vortex fans are installed in the cavity inside the cabinet top, and evenly arranged exhaust vents are opened at the bottom of one side of the cabinet top. When working, the axial flow fan on the cabinet door draws in cold air from the outside into the cabinet. The air flows from bottom to top through each module and absorbs heat. The heated air enters from the bottom air inlet of the vortex fan, is accelerated multiple times through the annular flow channel, and is then discharged at high speed from the side air outlet to the cavity at the top of the cabinet. Finally, it is discharged outside the cabinet through the exhaust vent at the bottom of the cabinet top. During the cooling process of the vortex fan, the exhaust airflow is relatively turbulent. This results in varying airflow rates at different exhaust ports. Exhaust ports farther from the vortex fan may experience a jet entrainment effect due to their smaller exhaust volume, allowing outside air to enter the MCC cabinet and affecting cooling efficiency. Therefore, we propose an MCC cabinet with an integrated vortex fan cooling module. Summary of the Invention

[0003] The purpose of this invention is to provide an MCC cabinet with a vortex fan heat dissipation module to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an MCC cabinet with a vortex fan heat dissipation module, comprising a cabinet body, load-bearing columns fixedly connected to the four corners of the top of the cabinet body, a heat dissipation cabinet top fixedly connected between the tops of the load-bearing columns, an installation cavity provided inside the heat dissipation cabinet top, an air inlet provided at the bottom of the heat dissipation cabinet top, a plurality of evenly arranged exhaust vents provided on one side of the bottom of the heat dissipation cabinet top, a vortex fan body fixedly connected inside the heat dissipation cabinet top, the vortex fan body being located directly above the air inlet, two sliding grooves provided on the inner bottom wall of the heat dissipation cabinet top, both sliding grooves being located between the air inlet and the exhaust vent, and friction blocks being fitted and fixedly connected to both sides of the sliding grooves near the exhaust vent; A mounting shaft is rotatably connected between the inner walls of the two chutes near the air inlet. A sleeve is rotatably connected to each mounting shaft. A traction rope is wound at both ends of each sleeve. A slider is fixedly connected between the two traction ropes on each sleeve at the ends away from the sleeve. The slider is slidably connected to the inner wall of the chutes. A mounting plate is fixedly connected between the tops of the two sliders. A baffle plate is fixedly connected to the top of the mounting plate near the air outlet. A guide slope is provided on the side of the baffle plate away from the air outlet. Several vertically evenly distributed reinforcing ribs are fixedly connected to the guide slope.

[0005] Preferably, an arc-shaped windshield is fixedly connected to the top of the heat sink, and a plurality of evenly distributed guide plates A are fixedly connected to the inner wall of the windshield, and the guide plates A are all inclined toward the inner bottom wall of the top of the heat sink.

[0006] Preferably, the windshield has an air outlet on the side near the exhaust port, and guide plates B are fixedly connected to the inner walls on both sides of the air outlet of the windshield, with the two guide plates B forming an flared shape.

[0007] Preferably, a ventilation pipe is fixedly connected between the top of the cabinet and the air inlet at the bottom of the heat dissipation cabinet, and the inner wall of the ventilation pipe is provided with a threaded groove.

[0008] Preferably, a number of mounting rods are fixedly connected to the bottom of the top of the heat sink near the exhaust vent, and a fixing arc plate is fixedly connected between the bottoms of the mounting rods.

[0009] Preferably, the fixed arc plate has an arc-shaped structure with a high middle and low ends, and the top of the fixed arc plate is provided with a number of evenly distributed guide grooves.

[0010] Preferably, a spring is fixedly connected between the outer wall of the mounting shaft and the inner wall of the sleeve, and a storage groove is provided on the outer wall of both ends of the sleeve, and the traction rope is wound into the storage groove at the corresponding position.

[0011] Preferably, two sensors are fixedly connected to the inner bottom wall of the top of the heat sink near the exhaust port, and a rotating shaft is rotatably connected between the two sensors. Several sets of detection blades are fixedly connected to both ends of the rotating shaft.

[0012] Preferably, each group of the detection blades is aligned vertically with several exhaust vents located on the outer side.

[0013] Preferably, the cabinet body has two cabinet doors rotatably connected, and each cabinet door is fixedly connected with several axial flow fans.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a baffle to gather and concentrate the turbulent airflow discharged from the vortex fan. The guide plate A presses the airflow downward, and the guide plate B restricts the airflow direction to be directed towards the exhaust port. After the airflow pushes the baffle, it is guided to both sides by the guide slope. At the same time, the baffle partially blocks the middle exhaust port, so that the airflow distribution of each exhaust port tends to be uniform. This avoids the problem of jet entrainment effect caused by the small exhaust volume of the exhaust port far away from the vortex fan, which leads to the backflow of outside air into the cabinet and affects the heat dissipation efficiency. This significantly improves the uniformity and heat dissipation stability of the exhaust at the top of the cabinet. 2. When the vortex blower is running at low power, the wind force is insufficient to overcome the initial resistance of the spring and the static friction of the friction block. The baffle plate remains stationary, and there is no need to balance the airflow. When the vortex blower is running at high power, the wind force pushes the baffle plate and the mounting plate to move. The slider slides along the slide groove and pulls the traction rope to make the sleeve rotate. The spring tightens and the resistance increases. At the same time, the friction increases after the slider enters the friction block area. This achieves progressive adaptive flow distribution that matches the wind force, solving the problem of needing to adjust the exhaust port balance as needed under different operating speeds of the vortex blower. 3. In this invention, when the rising hot air inside the cabinet enters the ventilation duct, the threaded groove guides the turbulent airflow in an orderly manner, forming a stable airflow. This reduces the energy loss caused by the violent collision of the vortex fan impeller, achieving energy saving and efficiency improvement. When the discharged hot air flows downward through the exhaust port, the fixed arc plate, which is high in the middle and low at both ends, works with the guide groove at its top to guide the hot air to both sides of the cabinet. This prevents the hot air from blowing directly downward and mixing with the cold air drawn in by the axial flow fan in front of the cabinet door, effectively reducing the energy loss caused by airflow turbulence and preventing the hot air backflow from interfering with the air intake, thus significantly improving the overall heat dissipation efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the top and bottom structure of the heat sink cabinet of the present invention; Figure 3 This is a schematic diagram of the top cross-sectional structure of the heat sink cabinet of the present invention; Figure 4 This is a schematic diagram of the mounting plate and wind deflector structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the chute of the present invention; Figure 6 This is a schematic diagram of the sleeve and its connecting components of the present invention; Figure 7 This is a schematic diagram of the windshield structure of the present invention; Figure 8 For the present invention Figure 5 The diagram shows an enlarged view of area A.

[0016] In the diagram: 1. Cabinet body; 11. Cabinet door; 12. Axial flow fan; 2. Load-bearing column; 21. Ventilation duct; 22. Threaded groove; 3. Top of heat dissipation cabinet; 31. Air inlet; 32. Air outlet; 33. Vortex fan body; 4. Wind deflector; 41. Guide plate A; 42. Air outlet; 43. Guide plate B; 5. Slide groove; 51. Friction block; 6. Mounting shaft; 61. Sleeve; 62. Spring; 63. Storage slot; 64. Traction rope; 65. Slider; 7. Mounting plate; 71. Wind deflector; 72. Guide slope; 73. Reinforcing rib; 8. Mounting rod; 81. Fixed arc plate; 82. Guide groove; 9. Sensor; 91. Rotating shaft; 92. Detection blade. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on 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.

[0018] Please see Figure 1-8 The present invention provides a technical solution: an MCC cabinet with a vortex fan heat dissipation module, comprising a cabinet body 1, two cabinet doors 11 rotatably connected to the cabinet body 1, each cabinet door 11 being fixedly connected to several axial flow fans 12, load-bearing columns 2 being fixedly connected to the four corners of the top of the cabinet body 1, a heat dissipation cabinet top 3 being fixedly connected between the tops of the load-bearing columns 2, an installation cavity being provided inside the heat dissipation cabinet top 3, an air inlet 31 being provided at the bottom of the heat dissipation cabinet top 3, a ventilation pipe 21 being fixedly connected between the top of the cabinet body 1 and the air inlet 31 at the bottom of the heat dissipation cabinet top 3, a threaded groove 22 being provided on the inner wall of the ventilation pipe 21, several evenly arranged exhaust ports 32 being provided on one side of the bottom of the heat dissipation cabinet top 3, and a vortex fan body 33 being fixedly connected inside the heat dissipation cabinet top 3, the vortex fan body 33 being located directly above the air inlet 31.

[0019] Furthermore, cabinet 1 is the main structure of the MCC control cabinet, and the top of the heat dissipation cabinet 3 is a modular cabinet top structure with an internal installation cavity for installing the heat dissipation mechanism. When using the MCC control cabinet, the axial flow fan 12 of the cabinet door 11 draws cold air from the outside into the cabinet 1 to cool the electrical components inside the cabinet 1. At this time, the vortex fan body 33 is opened. During the operation of the vortex fan body 33, the hot air inside the cabinet 1 can be drawn into the ventilation pipe 21 and discharged through the air outlet on the side of the vortex fan body 33. When the air enters the ventilation pipe 21, the threaded groove 22 guides the air, turning the turbulent air into an orderly and stable airflow. The stable airflow greatly reduces the impact force caused by violent collisions inside the vortex fan, thereby allowing the blades to rotate more smoothly, thus reducing energy loss and achieving energy saving and efficiency improvement. Afterwards, the hot air is discharged through the exhaust port 32, completing the heat dissipation cycle.

[0020] Combined with appendix Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, an arc-shaped wind deflector 4 is fixedly connected inside the top 3 of the heat sink. Several evenly distributed guide plates A41 are fixedly connected to the inner wall of the wind deflector 4. All guide plates A41 are inclined towards the inner bottom wall of the top 3 of the heat sink. An air outlet 42 is provided on the side of the wind deflector 4 near the exhaust port 32. Guide plates B43 are fixedly connected to the inner walls of both sides of the air outlet 42 of the wind deflector 4. The space between two guide plates B43 is flared. An air outlet 42 is provided on the inner bottom wall of the top 3 of the heat sink. There are two chutes 5, both located between the air inlet 31 and the air outlet 32. Friction blocks 51 are fitted and fixedly connected to both sides of the chutes 5 near the air outlet 32. Mounting shafts 6 are rotatably connected between the inner walls of the two chutes 5 near the air inlet 31. Sleeves 61 are rotatably connected to the mounting shafts 6. A spring 62 is fixedly connected between the outer wall of the mounting shaft 6 and the inner wall of the sleeve 61. Traction ropes are wound up at both ends of the sleeves 61. 64. Both ends of the outer wall of the sleeve 61 are provided with storage grooves 63. The traction ropes 64 are all wound in the storage grooves 63 at the corresponding positions. The two traction ropes 64 on each sleeve 61 are fixedly connected to the ends away from the sleeve 61 with sliders 65. The sliders 65 are slidably connected to the inner wall of the groove 5. The top of the two sliders 65 is fixedly connected to the mounting plate 7. The top of the mounting plate 7 is fixedly connected to the side of the exhaust port 32. The width of the baffle plate 71 is the same as the sum of the widths of the several exhaust ports 32 located in the middle position. The height of the baffle plate 71 is lower than the height of the wind shield 4 to avoid the air being completely blocked by the baffle plate 71, which would cause the exhaust volume of the middle exhaust port 32 to be lower than that of the exhaust ports 32 on both sides. The side of the baffle plate 71 away from the exhaust port 32 is provided with a guide slope 72. Several vertically evenly distributed reinforcing ribs 73 are fixedly connected to the guide slope 72.

[0021] Furthermore, when the vortex fan body 33 discharges hot air from the outlet, the air is gathered and collected by the baffle 4. At this time, the air flows along the inner wall of the baffle 4 and is pushed downwards towards the inner bottom wall of the heat sink top 3 by the downwardly inclined guide plate A41. Then, when the air reaches the air outlet 42 of the baffle 4, the air is discharged from the baffle 4 through the air outlet 42. At this time, the direction of the air discharge from the baffle 4 is restricted by the guiding effect of the guide plate B43, so that the air is directed towards the exhaust port 32. The air flows in the direction of the exhaust vent 32. During this process, the air comes into contact with the baffle 71, pushing the baffle 71 and the mounting plate 7 towards the exhaust vent 32. The mounting plate 7 also causes the slider 65 to slide, pulling the traction rope 64. This pulling of the traction rope 64 causes the sleeve 61 to rotate, thus lengthening the traction rope 64. Meanwhile, the spring 62 tightens under the rotation of the sleeve 61. The tighter the spring 62 is tightened, the more it will extend during further tightening. The greater the force required, the better it can adapt to different operating power of the vortex fan body 33. After the air comes into contact with the baffle plate 71, it will be guided to both sides by the guide slope 72 and flow towards the exhaust port 32 near the outer side. At the same time, the mounting plate 7 can also partially block the exhaust port 32 near the middle position, thereby reducing the air volume of the exhaust port 32 at that point. Meanwhile, the reinforcing rib 73 not only improves the strength of the baffle plate 71, but also improves the guiding performance of the guide slope 72. At this time, the air is gathered by the wind shield 4, and The airflow diversion effect of the baffle plate 71 can prevent the exhaust volume of the exhaust port 32 far from the vortex fan body 33 from being too low, while the exhaust volume of the exhaust port 32 near the vortex fan body 33 from being too high. This would generate a jet entrainment effect, causing outside air to be sucked into the top of the heat sink 3 from the exhaust port 32 far from the vortex fan body 33, thus affecting the normal heat dissipation efficiency of the top of the heat sink 3. When the slider 65 contacts the friction block 51, the friction between them is greater, and the required air force is also greater, thereby achieving progressive airflow diversion.

[0022] Combined with appendix Figure 2 , Figure 3 and Figure 4 As shown, several mounting rods 8 are fixedly connected to the bottom of the top 3 of the heat sink near the exhaust port 32. A fixed arc plate 81 is fixedly connected between the bottoms of the mounting rods 8. The fixed arc plate 81 has an arc-shaped structure with a high middle and low ends. Several evenly distributed guide grooves 82 are opened on the top of the fixed arc plate 81.

[0023] Furthermore, when air is discharged through the exhaust port 32, it is blocked by the fixed arc plate 81. When the air comes into contact with the fixed arc plate 81, the air can be guided to both sides of the cabinet 1 through the guide groove 82, so as to avoid the hot air being discharged directly downwards, causing the air to mix with the cold air in front of the cabinet door 11, causing the air in front of the cabinet door 11 to become hot, which affects the heat dissipation efficiency inside the cabinet 1.

[0024] Combined with appendix Figure 3 and Figure 4 As shown, two sensors 9 are fixedly connected to the inner bottom wall of the top 3 of the heat sink near the exhaust port 32. A rotating shaft 91 is rotatably connected between the two sensors 9. Several sets of detection blades 92 are fixedly connected to both ends of the rotating shaft 91. Each set of detection blades 92 is aligned vertically with several exhaust ports 32 located on the outer side.

[0025] Furthermore, when air is exhausted through the exhaust vent 32, the air passes through the detection blade 92 and drives the rotating shaft 91 to rotate. The rotation speed of the rotating shaft 91 at this time can represent the exhaust efficiency of the exhaust vents 32 located on both sides. By monitoring the exhaust efficiency of the exhaust vents 32 on both sides in real time, the staff can better know whether the heat dissipation of the top 3 of the heat dissipation cabinet is normal.

[0026] Working principle: When using the MCC cabinet, first turn on the axial fan 12 on the cabinet door 11. The axial fan 12 draws cold air from the outside into the cabinet 1 to cool the electrical components inside the cabinet 1. At the same time, open the vortex fan body 33 in the top 3 of the heat dissipation cabinet. The vortex fan body 33 runs and draws in the rising hot air inside the cabinet 1 through the ventilation pipe 21 at the top of the cabinet 1. When hot air enters the ventilation duct 21, the threaded groove 22 on the inner wall of the ventilation duct 21 guides the airflow, transforming the turbulent airflow into an orderly and stable airflow, reducing the energy loss caused by the violent collision of the blades inside the vortex fan body 33. The stabilized hot air is drawn in through the vortex fan body 33 and discharged from the outlet end on its side to the installation cavity of the top of the heat sink 3. The exhaust hot air is gathered and collected by the arc-shaped wind deflector 4 and flows along the inner wall of the wind deflector 4. During the flow, the inclined guide plate A41 on the inner wall of the wind deflector 4 presses the air down towards the inner bottom wall of the heat sink top 3. The air flows to the air outlet 42 of the wind deflector 4 and is restricted to the exhaust outlet 32 ​​on the side of the heat sink top 3 by the flared guide plate B43 on both sides of the air outlet 42. At this time, the exhaust airflow comes into contact with the baffle plate 71, pushing the baffle plate 71 and the mounting plate 7 to move towards the exhaust port 32. The mounting plate 7 drives the slider 65 to slide along the slide groove 5. The slider 65 pulls the sleeve 61 to rotate through the traction rope 64. When the sleeve 61 rotates, the spring 62 is tightened. The resistance of the spring 62 increases with the degree of tightening, adapting to the wind force under different operating power of the vortex fan body 33. During this process, the moving baffle plate 71 partially blocks the exhaust port 32 near the middle position, reducing the middle exhaust volume. At the same time, the guide slope 72 on the baffle plate 71 guides the airflow to the exhaust ports 32 on both sides. When the hot air flows through the exhaust port 32, it blows the detection blade 92 located below the outer exhaust port 32. The detection blade 92 drives the rotating shaft 91 to rotate. The rotation speed of the rotating shaft 91 reflects the exhaust efficiency of the exhaust ports 32 on both sides in real time, allowing the staff to monitor the heat dissipation status of the top 3 of the heat sink. After being diverted, the hot air is discharged from the exhaust vents 32 at the top and bottom of the heat dissipation cabinet. When the discharged hot air flows downward, it is blocked by the fixed arc plate 81. The fixed arc plate 81 is an arc shape with a high middle and low ends. The guide groove 82 at the top of the plate guides the hot air to both sides of the cabinet body 1, preventing the hot air from blowing directly downward and mixing with the cold air in front of the cabinet door 11, which would affect the heat dissipation efficiency inside the cabinet.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] 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. An MCC cabinet with a vortex fan heat dissipation module, comprising a cabinet body (1), wherein load-bearing columns (2) are fixedly connected to the four corners of the top of the cabinet body (1), and a heat dissipation cabinet top (3) is fixedly connected between the tops of the load-bearing columns (2), wherein an installation cavity is provided inside the heat dissipation cabinet top (3), an air inlet (31) is provided at the bottom of the heat dissipation cabinet top (3), and a plurality of evenly arranged exhaust vents (32) are provided on one side of the bottom of the heat dissipation cabinet top (3), characterized in that: The top (3) of the heat sink cabinet is fixedly connected to the vortex fan body (33), which is located directly above the air inlet (31). The bottom wall of the top (3) of the heat sink cabinet has two sliding grooves (5), which are located between the air inlet (31) and the air outlet (32). Friction blocks (51) are fixedly connected to both sides of the sliding groove (5) near the air outlet (32). A mounting shaft (6) is rotatably connected between the inner walls of the two slides (5) near the air inlet (31). A sleeve (61) is rotatably connected to each mounting shaft (6). A traction rope (64) is wound at both ends of the sleeve (61). A slider (65) is fixedly connected between the two traction ropes (64) on each sleeve (61) away from the sleeve (61). The slider (65) is slidably connected to the inner wall of the slide (5). A mounting plate (7) is fixedly connected between the tops of the two sliders (65). A baffle plate (71) is fixedly connected to the top of the mounting plate (7) near the air outlet (32). A guide slope (72) is provided on the side of the baffle plate (71) away from the air outlet (32). Several vertically evenly distributed reinforcing ribs (73) are fixedly connected to the guide slope (72).

2. The MCC cabinet with a vortex fan heat dissipation module according to claim 1, characterized in that: An arc-shaped windshield (4) is fixedly connected inside the top (3) of the heat sink. Several evenly distributed guide plates A (41) are fixedly connected to the inner wall of the windshield (4). The guide plates A (41) are all inclined towards the inner bottom wall of the top (3) of the heat sink.

3. The MCC cabinet with a vortex fan heat dissipation module according to claim 2, characterized in that: The windshield (4) has an air outlet (42) on the side near the exhaust port (32). Both sides of the air outlet (42) of the windshield (4) are fixedly connected with guide plates B (43), and the two guide plates B (43) are flared together.

4. The MCC cabinet with a vortex fan heat dissipation module according to claim 1, characterized in that: A ventilation pipe (21) is fixedly connected between the top of the cabinet (1) and the air inlet (31) at the bottom of the heat sink top (3). The ventilation pipe (21) has a threaded groove (22) on its inner wall.

5. An MCC cabinet with a vortex fan heat dissipation module according to claim 1, characterized in that: Several mounting rods (8) are fixedly connected to the bottom of the top (3) of the heat sink near the exhaust port (32), and a fixed arc plate (81) is fixedly connected between the bottoms of the mounting rods (8).

6. An MCC cabinet with a vortex fan heat dissipation module according to claim 5, characterized in that: The fixed arc plate (81) has an arc-shaped structure with a high middle and low ends, and the top of the fixed arc plate (81) is provided with several evenly distributed guide grooves (82).

7. An MCC cabinet with a vortex fan heat dissipation module according to claim 1, characterized in that: A spring (62) is fixedly connected between the outer wall of the mounting shaft (6) and the inner wall of the sleeve (61). Both ends of the outer wall of the sleeve (61) are provided with storage grooves (63), and the traction ropes (64) are all wound into the storage grooves (63) at the corresponding positions.

8. An MCC cabinet with a vortex fan heat dissipation module according to claim 1, characterized in that: Two sensors (9) are fixedly connected to the inner bottom wall of the top (3) of the heat sink near the exhaust port (32). A rotating shaft (91) is rotatably connected between the two sensors (9). Several sets of detection blades (92) are fixedly connected to both ends of the rotating shaft (91).

9. An MCC cabinet with a vortex fan heat dissipation module according to claim 8, characterized in that: Each set of the detection blades (92) is aligned vertically with several exhaust vents (32) located on the outer side.

10. An MCC cabinet with a vortex fan heat dissipation module according to claim 2, characterized in that: The cabinet (1) is rotatably connected to two cabinet doors (11), and each cabinet door (11) is fixedly connected to several axial flow fans (12).