A nacelle heat dissipation fairing

Abstract

The application belongs to the technical field of wind power generation, and discloses a machine cabin heat dissipation fairing, which comprises a machine cabin body and further comprises: a heat conduction assembly fixed to the end of the machine cabin body; and a flow guide assembly installed on the heat conduction assembly. External gas enters the fairing body through the air inlet in the middle of the fairing body, and then passes through the protective net to enter the inside of the heat conduction assembly and the machine cabin body. The electromagnet in contact with the counterweight is powered off through program control. With the continuous transmission of the heat conduction assembly, the cleaning wheel rotates to the top end to separate from the adsorption of the electromagnet. Under the action of the weight of the counterweight, the fairing body moves downward along the guide rod, and the transmission gear moves downward along the rack to drive the cleaning wheel to rotate. The dust adhered to the surface of the protective net is cleaned through the rotation of the cleaning wheel, the ventilation efficiency of the protective net is improved, the heat dissipation effect of the machine cabin body is ensured, and the problem of safety hidden danger existing in artificial regular cleaning is avoided.

Description

Technical Field

[0001] This invention belongs to the field of wind power generation technology, specifically a nacelle heat dissipation shroud. Background Technology

[0002] The wind turbine nacelle cooling shroud is a key component in wind turbine generator sets used to optimize airflow organization and improve heat dissipation efficiency. Through the guiding structure, it guides external cold air into the nacelle efficiently while expelling hot air, reducing the temperature of core components such as gearbox and generator (usually needing to be controlled below 50℃).

[0003] Chinese invention patent CN114856944A discloses a wind turbine blade nacelle shroud air-induced heat dissipation mechanism, including a shroud shell, a filter screen, a heat dissipation air-induced component, and a rotating air guide component. This invention draws air in from the right side of the shroud shell through the heat dissipation air-induced component. The incoming airflow is discharged through multiple air guide pipes on a rotating plate. These multiple air guide pipes concentrate the airflow, improving the impact cooling effect. The rotating plate oscillates and is sealed by a telescopic sealing ring. The rotating plate drives the multiple air guide pipes to oscillate back and forth, thus directing the airflow to the front and rear side walls of the shroud shell, improving the cooling effect on these side walls. This enhances the function of rapid, targeted cooling and improves the uniformity of cooling.

[0004] The above-mentioned method introduces outside air into the nacelle through a filter screen. However, the fan is in operation for a long time, and outside air continuously enters the nacelle. The outside air contains dust that adheres to the filter screen, reducing the air intake of the nacelle and affecting the heat dissipation effect of the nacelle. The existing filter screen is usually cleaned manually on a regular basis, but manual cleaning is difficult and poses certain safety hazards. Therefore, a nacelle heat dissipation shroud is proposed. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a cabin heat dissipation shroud, which solves the problem that existing cabin filters require regular manual cleaning, which is difficult and poses certain safety hazards.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a nacelle heat dissipation shroud, comprising a nacelle body, and further comprising:

[0007] A heat-conducting component, which is fixedly mounted to the end of the main body of the cabin;

[0008] A flow guiding component, which is mounted on the heat conducting component;

[0009] A ventilation assembly, which is installed inside the heat-conducting assembly;

[0010] The flow guiding component includes a flow guiding shroud body fixedly mounted to the end of the heat conducting component. An air inlet is provided in the middle of the flow guiding shroud body. A first baffle is fixedly mounted inside the flow guiding shroud body. A protective net is provided in the middle of the first baffle. A rack and a guide rod are fixedly mounted at both ends of the first baffle.

[0011] The guide rod is movably fitted with a sleeve frame, and a cleaning wheel is movably fitted on the sleeve frame. Both ends of the cleaning wheel are fixedly fitted with transmission gears that mesh with a rack.

[0012] The top and bottom of the sleeve frame are fixed with counterweights by the first support frame, and two electromagnets are fixed on the first baffle, with the two electromagnets located at the top and bottom of the protective net.

[0013] The counterweight is made of metal and is initially in contact with the electromagnet.

[0014] Preferably, an installation through groove is provided between the two sides of the protective net and the first baffle, the rack and guide rod are located in the installation groove, and a sealing rubber pad is provided in the installation groove.

[0015] Preferably, the flow guiding assembly further includes a second support frame fixed to the outside of the sleeve frame, a push block fixed to the side of the second support frame, and the second support frame passes through the mounting slot and the sealing rubber gasket.

[0016] Preferably, the ventilation assembly includes a fixed frame fixed inside the main body of the air guide, and a transmission component is movably disposed on the fixed frame. The transmission component is located in the middle of the fixed frame via reset springs disposed at the top and bottom.

[0017] The push block abuts against the transmission component.

[0018] Preferably, a connecting rod is fixedly mounted on the side of the transmission component, and an exhaust port is opened on the outside of the main body of the air guide. A sealing component is hinged inside the exhaust port, and the sealing component seals the exhaust port through a coil spring.

[0019] Preferably, a connecting rod is fixedly mounted on the side of the transmission component, a rectangular through groove is provided on the sealing component, the connecting rod passes through the rectangular through groove, and an abutment is fixedly mounted on the outside of the connecting rod, the abutment contacting the sealing component.

[0020] Preferably, a second baffle is fixedly installed inside the main body of the air guide, and round rods are equidistantly arranged on the second baffle, with a ventilation groove in the middle of the round rods;

[0021] A connecting frame is fixedly mounted on the outside of the round rod, and a connecting rod is movably sleeved in the middle of the connecting frame. One end of the connecting rod is hinged to the transmission component.

[0022] Preferably, the heat-conducting component includes an air inlet slot at the end of the main body of the nacelle, the output end of the fan is fixedly connected to the main body of the deflector, one end of the main body of the deflector is movably connected to the side of the main body of the nacelle, and the airflow inside the main body of the deflector enters the main body of the nacelle through the air inlet slot;

[0023] A dispersion box is fixedly installed at the end of the main body of the cabin, and the side of the dispersion box is connected to the interior of the main body of the cabin through an air guide pipe.

[0024] Preferably, a hub is fixedly mounted on the outside of the main body of the flow guide, and a fan blade is installed on the outside of the hub. An arc-shaped through groove is opened on the side of the dispersion box, and the arc-shaped through groove is connected to the hub and the main body of the flow guide. The fan blade is hollow and has a vent hole on the outside.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] In this invention, external gas enters the main body of the air deflector through the air inlet in the middle and passes through the protective net to enter the interior of the heat conduction component and the main body of the cabin. The airflow dissipates heat from the interior of the cabin. As the external gas carries impurities through the protective net, they adhere to the surface. The electromagnet in contact with the counterweight is de-energized by the program control. As the heat conduction component continues to drive, the cleaning wheel rotates to the top and disengages from the electromagnet. Under the weight of the counterweight, the main body of the air deflector moves down along the guide rod, and the transmission gear moves down along the rack, driving the cleaning wheel to rotate. The rotation of the cleaning wheel cleans the dust adhering to the surface of the protective net, improving the ventilation efficiency of the protective net, ensuring the heat dissipation effect of the cabin, and avoiding the safety hazards of manual periodic cleaning.

[0027] This invention drives the transmission component to move downward by pushing the block, and drives the connecting frame and the round rod to rotate through the connecting rod. During the rotation of the round rod, the second baffle blocks the ventilation slot. At this time, the external airflow enters the main body of the guide hood but cannot pass through the second baffle. The external airflow can then be discharged through the exhaust port outside the main body of the guide hood. At the same time, the dust cleaned by the cleaning wheel and the protective net is discharged through the exhaust port under the action of the airflow, thereby ensuring the dust cleaning effect.

[0028] In this invention, external airflow enters the interior of the main body of the nacelle through the main body of the air guide and the air inlet slot to dissipate heat from the internal components. The airflow then passes through the main body of the nacelle and enters the dispersion box through the air guide pipe, and then enters the space between the main body of the air guide and the hub through the arc-shaped slot, and finally enters the fan blades and is discharged through the vent holes. Because the external airflow entering the main body of the nacelle carries internal heat into the fan blades, the heat from the airflow prevents the fan blades from icing. Attached Figure Description

[0029] Figure 1This is a schematic diagram of the overall appearance and structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the disassembled structure of the thermal conductive component of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the rack, the first baffle, and the protective net of the present invention.

[0033] Figure 5 This is a schematic diagram of the disassembled structure of the flow guiding component of the present invention;

[0034] Figure 6 This is a schematic cross-sectional view of the ventilation component of the present invention;

[0035] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0036] Figure 8 This is a schematic diagram of the combined structure of the airflow guiding component and the ventilation component of the present invention;

[0037] Figure 9 This is a schematic diagram of the disassembled structure of the ventilation component of the present invention.

[0038] In the diagram: 1. Main body of the engine compartment; 2. Heat conduction assembly; 21. Dispersion box; 22. Air duct; 23. Air inlet duct; 24. Hub; 25. Fan blade; 5. Flow guide assembly; 51. First baffle; 52. Protective net; 53. Electromagnet; 54. Rack; 55. Guide rod; 56. Flow guide body; 57. Sleeve frame; 511. Cleaning wheel; 512. Transmission gear; 513. First support frame; 514. Counterweight; 515. Pushing block; 516. Second support frame; 6. Ventilation assembly; 61. Second baffle; 62. Round rod; 63. Ventilation duct; 64. Connecting frame; 65. Connecting rod; 611. Fixing frame; 612. Reset spring; 613. Transmission component; 614. Connecting rod; 615. Abutting component; 616. Sealing component. Detailed Implementation

[0039] 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.

[0040] like Figures 1 to 9 As shown, the present invention provides a nacelle heat dissipation shroud, including a nacelle body 1, and further comprising:

[0041] Thermal conductive component 2 is fixedly mounted at the end of the main body 1 of the cabin;

[0042] The flow guiding component 5 is mounted on the heat conducting component 2;

[0043] Ventilation component 6 is installed inside the heat-conducting component 2;

[0044] The flow guiding component 5 includes a flow guiding shroud body 56 fixedly mounted at the end of the heat conducting component 2. An air inlet is provided in the middle of the flow guiding shroud body 56. A first baffle 51 is fixedly mounted inside the flow guiding shroud body 56. A protective net 52 is provided in the middle of the first baffle 51. A rack 54 and a guide rod 55 are fixedly mounted at both ends of the first baffle 51.

[0045] The guide rod 55 is movably fitted with a sleeve frame 57, and a cleaning wheel 511 is movably fitted on the sleeve frame 57. Both ends of the cleaning wheel 511 are fixedly fitted with transmission gears 512 that mesh with the rack 54.

[0046] The top and bottom of the sleeve frame 57 are fixed with counterweights 514 via the first support frame 513. Two electromagnets 53 are fixed on the first baffle 51, and the two electromagnets 53 are located at the top and bottom of the protective net 52.

[0047] The counterweight 514 is made of metal. In the initial state, the counterweight 514 is attracted and in contact with the electromagnet 53.

[0048] The protective net 52 has installation slots between its two sides and the first baffle 51. The rack 54 and the guide rod 55 are located in the installation slots, and a sealing rubber pad is provided in the installation slots.

[0049] External air enters the main body 56 of the duct through the air inlet in the middle and passes through the protective net 52 into the interior of the heat conduction component 2 and the main body 1 of the cabin. The air dissipates heat from the interior of the main body 1. The external air carries impurities that adhere to the surface of the protective net 52 as it passes through it. The electromagnet 53, which is in contact with the counterweight 514, is de-energized by the program control. As the heat conduction component 2 continues to drive, the cleaning wheel 511 rotates to the top and disengages from the electromagnet 53. Under the weight of the counterweight 514, the main body 56 of the duct moves down along the guide rod 55. The transmission gear 512 moves down along the rack 54, driving the cleaning wheel 511 to rotate. The rotation of the cleaning wheel 511 cleans the dust adhering to the surface of the protective net 52, improving the ventilation efficiency of the protective net 52, ensuring the heat dissipation effect of the main body 1 of the cabin, and avoiding the safety hazards of manual periodic cleaning.

[0050] When the cleaning wheel 511 moves along the surface of the protective net 52 to the bottom, it is attracted and fixed by another electromagnet 53 and another counterweight 514. At the same time, when the protective net 52 needs to be cleaned repeatedly, the two electromagnets 53 are de-energized simultaneously. As the heat conduction component 2 continues to rotate, the cleaning wheel 511 is repeatedly positioned at the top. Under the action of the counterweight 514, the cleaning wheel 511 repeatedly moves along the surface of the protective net 52 to clean it, ensuring the cleaning effect of the protective net 52.

[0051] By installing the sealing rubber pads inside the mounting slot, external wind is prevented from entering the main body of the nacelle 1 through the mounting slot, which would cause dust to enter the main body of the nacelle 1, ensuring that external air completely enters the main body of the nacelle 1 through the protective net 52.

[0052] The internal structure of the wind turbine is not described in detail here. The wind turbine rotates once in 6-12 seconds. When the protective net 52 rotates to a vertical position of 45 degrees, the cleaning wheel 511 moves down and rotates along the rack 54 under the action of the counterweight 514. The cleaning wheel 511 completes the cleaning of the protective net 52 within the 90-degree range of the vertical position of the protective net 52.

[0053] If the time it takes for the wind turbine to complete one revolution is greater than or less than the set range, the cleaning wheel 511 will stop working.

[0054] like Figures 5-8 As shown, the flow guiding assembly 5 also includes a second support frame 516 fixed to the outside of the sleeve frame 57. A push block 515 is fixed to the side of the second support frame 516. The second support frame 516 passes through the mounting slot and the sealing rubber gasket.

[0055] The ventilation assembly 6 includes a fixed frame 611 fixed inside the air guide body 56. A transmission component 613 is movably mounted on the fixed frame 611. The transmission component 613 is located in the middle of the fixed frame 611 via reset springs 612 provided at the top and bottom.

[0056] The pusher block 515 abuts against the transmission component 613;

[0057] A connecting rod 614 is fixedly mounted on the side of the transmission component 613. An exhaust port is opened on the outside of the main body 56 of the flow guide. A sealing component 616 is hinged inside the exhaust port. The sealing component 616 seals the exhaust port through a coil spring.

[0058] A connecting rod 614 is fixedly mounted on the side of the transmission component 613. A rectangular through groove is provided on the sealing component 616. The connecting rod 614 passes through the rectangular through groove. An abutting component 615 is fixedly mounted on the outside of the connecting rod 614. The abutting component 615 contacts the sealing component 616.

[0059] The weight of the counterweight 514 drives the sleeve frame 57, the second support frame 516 and the push block 515 to move down along the guide rod 55. Since the push block 515 is in contact with the transmission component 613, the friction between the push block 515 and the transmission component 613 drives the transmission component 613 to move down. The connecting rod 614 and the contacting component 615 push the sealing component 616 at the bottom, so that the exhaust port is in the open state. The transmission component 613 moves down to compress the lower reset spring 612 and stretch the upper reset spring 612. After the lower reset spring 612 is compressed, the transmission component 613 cannot move down. The push block 515 will move down along the surface of the transmission component 613.

[0060] The cleaning wheel 511 cleans the dust adhering to the surface of the protective net 52, while the outside airflow continuously enters the main body of the guide hood 56 through the air inlet and carries the cleaned dust out of the main body of the guide hood 56 through the air outlet to ensure the cleanliness of the interior.

[0061] like Figure 6 , Figure 8 and Figure 9 As shown, a second baffle 61 is fixedly installed inside the main body 56 of the fairing. A round rod 62 is equidistantly arranged on the second baffle 61, and a ventilation groove 63 is opened in the middle of the round rod 62.

[0062] A connecting frame 64 is fixedly mounted on the outside of the round rod 62. A connecting rod 65 is movably sleeved in the middle of the connecting frame 64. One end of the connecting rod 65 is hinged to the transmission component 613.

[0063] By pushing block 515, the transmission component 613 is moved down, and the connecting rod 65 drives the connecting frame 64 and the round rod 62 to rotate. During the rotation of the round rod 62, the second baffle 61 blocks the ventilation slot 63. At this time, the external airflow enters the main body 56 of the guide hood but cannot pass through the second baffle 61. The external airflow can then be discharged through the exhaust port outside the main body 56 of the guide hood. At the same time, the dust cleaned by the cleaning wheel 511 on the protective net 52 is discharged through the exhaust port under the action of the airflow, thereby ensuring the dust cleaning effect.

[0064] When the fairing body 56 and the push block 515 move to the bottom along the guide rod 55, the transmission component 613 is reset to the middle of the fixed frame 611 under the action of the reset spring 612, the ventilation slot 63 is in the open state, and the airflow in the fairing body 56 can enter the interior of the cabin body 1 through the ventilation slot 63. At the same time, the sealing component 616 blocks the exhaust port under the action of the spring.

[0065] like Figure 2 and Figure 3As shown, the heat conduction component 2 includes an air inlet slot 23 opened at the end of the main body 1 of the nacelle. The output end of the fan is fixedly connected to the main body 56 of the air guide. One end of the main body 56 of the air guide is movably connected to the side of the main body 1 of the nacelle. The airflow in the main body 56 of the air guide enters the main body 1 of the nacelle through the air inlet slot 23.

[0066] A dispersion box 21 is fixedly installed at the end of the main body 1 of the cabin, and the side of the dispersion box 21 is connected to the interior of the main body 1 of the cabin through a duct 22.

[0067] A hub 24 is fixedly mounted on the outside of the main body 56 of the flow guide. A fan blade 25 is installed on the outside of the hub 24. An arc-shaped through groove is opened on the side of the dispersion box 21. The arc-shaped through groove is connected to the hub 24 and the main body 56 of the flow guide. The fan blade 25 is hollow and has a vent hole on the outside.

[0068] External airflow enters the interior of the main body of the nacelle 1 through the main body of the shroud 56 and the air inlet slot 23 to dissipate heat from the internal components. The airflow passes through the main body of the nacelle 1 and enters the distribution box 21 through the air duct 22, and enters the space between the main body of the shroud 56 and the hub 24 through the arc-shaped slot, and then enters the fan blade 25 and is discharged through the vent. As the external airflow enters the main body of the nacelle 1, it carries internal heat into the fan blade 25, and the heat from the airflow prevents the fan blade 25 from icing.

[0069] Working principle and usage process of this invention:

[0070] External air enters the main body 56 of the duct through the air inlet in the middle and passes through the protective net 52 into the interior of the heat conduction component 2 and the main body 1 of the cabin. The air dissipates heat from the interior of the main body 1. The external air carries impurities that adhere to the surface of the protective net 52 as it passes through it. The electromagnet 53, which is in contact with the counterweight 514, is de-energized by the program control. As the heat conduction component 2 continues to drive, the cleaning wheel 511 rotates to the top and disengages from the electromagnet 53. Under the weight of the counterweight 514, the main body 56 of the duct moves down along the guide rod 55. The transmission gear 512 moves down along the rack 54, driving the cleaning wheel 511 to rotate. The rotation of the cleaning wheel 511 cleans the dust adhering to the surface of the protective net 52, improving the ventilation efficiency of the protective net 52, ensuring the heat dissipation effect of the main body 1 of the cabin, and avoiding the safety hazards of manual periodic cleaning.

[0071] When the cleaning wheel 511 moves to the bottom along the surface of the protective net 52, it is attracted and fixed by another electromagnet 53 and another counterweight 514. At the same time, when the protective net 52 needs to be cleaned repeatedly, the two electromagnets 53 are de-energized simultaneously. As the heat conduction component 2 continues to rotate, the cleaning wheel 511 is repeatedly positioned at the top. Under the action of the counterweight 514, the cleaning wheel 511 repeatedly moves along the surface of the protective net 52 to clean it, ensuring the cleaning effect of the protective net 52.

[0072] By installing the sealing rubber pads in the slot, the outside wind is prevented from entering the main body of the nacelle 1 through the slot, which would cause dust to enter the main body of the nacelle 1 and ensure that the outside gas completely enters the main body of the nacelle 1 through the protective net 52.

[0073] The weight of the counterweight 514 drives the sleeve frame 57, the second support frame 516 and the push block 515 to move down along the guide rod 55. Since the push block 515 is in contact with the transmission component 613, the transmission component 613 is driven to move down through the contact between the push block 515 and the transmission component 613. The bottom sealing component 616 is pushed by the docking rod 614 and the contact component 615, so that the exhaust port is in the open state. The transmission component 613 moves down to compress the lower reset spring 612 and stretch the upper reset spring 612. After the lower reset spring 612 is compressed, the transmission component 613 cannot move down at this time, and the push block 515 will move down along the surface of the transmission component 613.

[0074] The cleaning wheel 511 cleans the dust adhering to the surface of the protective net 52, while the outside airflow continuously enters the main body of the guide hood 56 through the air inlet and carries the cleaned dust out of the main body of the guide hood 56 through the air outlet to ensure the cleanliness of the interior.

[0075] By pushing block 515, the transmission component 613 is moved down, and the connecting rod 65 drives the connecting frame 64 and the round rod 62 to rotate. During the rotation of the round rod 62, the second baffle 61 blocks the ventilation slot 63. At this time, the external airflow enters the main body 56 of the guide hood but cannot pass through the second baffle 61. The external airflow can then be discharged through the exhaust port outside the main body 56 of the guide hood. At the same time, the dust cleaned by the cleaning wheel 511 on the protective net 52 is discharged through the exhaust port under the action of the airflow, thereby ensuring the dust cleaning effect.

[0076] When the fairing body 56 and the push block 515 move to the bottom along the guide rod 55, the transmission component 613 is reset to the middle of the fixed frame 611 under the action of the reset spring 612, the ventilation slot 63 is in the open state, and the airflow in the fairing body 56 can enter the interior of the cabin body 1 through the ventilation slot 63. At the same time, the sealing component 616 blocks the exhaust port under the action of the spring.

[0077] External airflow enters the interior of the main body of the nacelle 1 through the main body of the shroud 56 and the air inlet slot 23 to dissipate heat from the internal components. The airflow passes through the main body of the nacelle 1 and enters the distribution box 21 through the air duct 22, and enters the space between the main body of the shroud 56 and the hub 24 through the arc-shaped slot, and then enters the fan blade 25 and is discharged through the vent. As the external airflow enters the main body of the nacelle 1, it carries internal heat into the fan blade 25, and the heat from the airflow prevents the fan blade 25 from icing.

[0078] 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.

[0079] 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 nacelle heat dissipation shroud, comprising a nacelle body (1), characterized in that, Also includes: A heat-conducting component (2) is fixedly mounted to the end of the main body of the cabin (1); A flow guiding component (5) is mounted on the heat conducting component (2); Ventilation assembly (6), which is installed inside the heat-conducting assembly (2); The flow guiding component (5) includes a flow guiding hood body (56) fixedly mounted at the end of the heat conducting component (2). An air inlet is provided in the middle of the flow guiding hood body (56). A first baffle (51) is fixedly mounted inside the flow guiding hood body (56). A protective net (52) is provided in the middle of the first baffle (51). A rack (54) and a guide rod (55) are fixedly mounted at both ends of the first baffle (51). The guide rod (55) is movably fitted with a sleeve frame (57), and a cleaning wheel (511) is movably fitted on the sleeve frame (57). Both ends of the cleaning wheel (511) are fixedly fitted with transmission gears (512) that mesh with the rack (54). The top and bottom of the sleeve frame (57) are fixed with counterweights (514) through the first support frame (513), and two electromagnets (53) are fixed on the first baffle (51). The two electromagnets (53) are located at the top and bottom of the protective net (52). The counterweight (514) is made of metal and initially it is in contact with the electromagnet (53).

2. The cabin heat dissipation shroud according to claim 1, characterized in that: The protective net (52) has an installation slot between its two sides and the first baffle (51). The rack (54) and the guide rod (55) are located in the installation slot, and a sealing rubber pad is provided in the installation slot.

3. The cabin heat dissipation shroud according to claim 2, characterized in that: The flow guiding assembly (5) also includes a second support frame (516) fixed to the outside of the sleeve frame (57). A push block (515) is fixed to the side of the second support frame (516). The second support frame (516) passes through the mounting slot and the sealing rubber pad.

4. The cabin heat dissipation shroud according to claim 3, characterized in that: The ventilation assembly (6) includes a fixed frame (611) fixed inside the main body (56) of the air guide, and a transmission component (613) is movably arranged on the fixed frame (611). The transmission component (613) is located in the middle of the fixed frame (611) through reset springs (612) arranged at the top and bottom. The push block (515) abuts against the transmission member (613).

5. The nacelle heat dissipation shroud according to claim 4, characterized in that: The transmission component (613) is fixedly mounted with a docking rod (614) on its side. The main body (56) of the flow guide is provided with an exhaust port on its exterior. A sealing component (616) is hinged inside the exhaust port. The sealing component (616) seals the exhaust port with a coil spring.

6. The nacelle heat dissipation shroud according to claim 5, characterized in that: The transmission component (613) has a connecting rod (614) fixedly mounted on its side. The sealing component (616) has a rectangular through groove. The connecting rod (614) passes through the rectangular through groove. The connecting rod (614) has an abutment (615) fixedly mounted on its exterior. The abutment (615) contacts the sealing component (616).

7. The nacelle heat dissipation shroud according to claim 6, characterized in that: The main body (56) of the flow guide is fixedly equipped with a second baffle (61), and a round rod (62) is equidistantly arranged on the second baffle (61). A ventilation groove (63) is opened in the middle of the round rod (62). The outer side of the round rod (62) is fixedly fitted with a connecting frame (64), and a connecting rod (65) is movably sleeved in the middle of the connecting frame (64). One end of the connecting rod (65) is hinged to the transmission component (613).

8. The nacelle heat dissipation shroud according to claim 7, characterized in that: The heat-conducting component (2) includes an air inlet slot (23) opened at the end of the main body of the nacelle (1), the output end of the fan is fixedly connected to the main body of the shroud (56), one end of the shroud (56) is movably connected to the side of the main body of the nacelle (1), and the airflow in the shroud (56) enters the main body of the nacelle (1) through the air inlet slot (23); A dispersion box (21) is fixedly installed at the end of the main body of the cabin (1), and the side of the dispersion box (21) is connected to the interior of the main body of the cabin (1) through a duct (22).

9. The nacelle heat dissipation shroud according to claim 8, characterized in that: The main body (56) of the flow guide is fixedly fitted with a hub (24), and a fan blade (25) is installed on the outside of the hub (24). The side of the dispersion box (21) is provided with an arc-shaped through groove, which is connected to the hub (24) and the main body (56) of the flow guide. The fan blade (25) is hollow and has a vent hole on the outside.

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