Vortex generator, rail vehicle, and control method for vortex generator

Abstract

The present invention discloses a vortex generator, a rail vehicle, and a control method for a vortex generator, and relates to the field of vehicle engineering technology. The vortex generator includes a vortex generator plate, a base, a cover plate, and a tilting mechanism; the cover plate is connected to the base and encloses an installation space, and the tilting mechanism is installed in the installation space; a mounting opening is provided on the cover plate, and the vortex generator plate is connected to the tilting mechanism. Driven by the tilting mechanism, the vortex generator plate can be flipped to close the mounting opening or at least partially flip out of the mounting opening. Driven by the tilting mechanism, the vortex generator plate performs a flipping movement to cover the mounting opening, or flip out of the mounting opening to increase or reduce resistance. Since no installation space is required to completely accommodate the entire vortex generator plate in either the covered state or the flipped-out state, it is beneficial to reduce the space occupied by the installation space. When the vortex generator is installed on the vehicle body, the space occupied by the vortex generator plate on the vehicle body can also be reduced accordingly.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle engineering, and in particular to a vortex generator, a rail vehicle, and a control method for the vortex generator. Background Art

[0002] As the speed of trains continues to increase, the proportion of aerodynamic resistance in the power required to drive the train forward continues to increase. Therefore, it is necessary to study how to reduce the aerodynamic resistance of the train to reduce the train's energy consumption.

[0003] A prior art train drag reduction device based on vortex generators includes an even number of vortex generator plates symmetrically arranged on the leading and trailing cars of the train. The plates are positioned perpendicular to the streamlined section of the train's bodyshell and are equipped with a sliding control mechanism to control the linear raising or retraction of the plates in the streamlined section of the train's bodyshell, thereby increasing or reducing drag. However, raising or retracting the vortex generator plates using the sliding control mechanism requires a large amount of space under the vehicle roof, increasing the complexity of the arrangement and hindering practical application. Further improvements are needed.

[0004] Therefore, how to reduce the space occupied by the vortex generator plate on the vehicle body is a technical problem that those skilled in the art currently need to solve. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide a vortex generator, a rail vehicle including the vortex generator, and a control method for the vortex generator using the vortex generator, which can reduce the space occupied by the vortex generator plate on the vehicle body.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A vortex generator comprises a vortex generator plate, a base, a cover plate and a tilting mechanism; the cover plate is connected to the base and encloses an installation space, and the tilting mechanism is installed in the installation space; a mounting opening is provided on the cover plate, and the vortex generator plate is connected to the tilting mechanism. Driven by the tilting mechanism, the vortex generator plate can be flipped to close the mounting opening or at least partially flip out of the mounting opening.

[0008] Preferably, it further includes a rotating mechanism provided in the installation space, and the vortex generator plate is connected to the rotating mechanism through the tilting mechanism; the rotating mechanism is used to drive the vortex generator plate to rotate around a first axis, and the first axis passes through the installation opening.

[0009] Preferably, the tilting mechanism includes a connecting rod mechanism and a telescopic drive member, and the connecting rod mechanism and the telescopic drive member are both hinged to the rotating mechanism and the vortex generator plate; the telescopic drive member drives the vortex generator plate to flip around a second axis through telescopic movement, and the second axis is located on one side of the vortex generator plate.

[0010] Preferably, the connecting rod mechanism includes a four-link mechanism consisting of a first connecting rod, a movable rod, a second connecting rod and a bottom rod, which are hinged in sequence. The bottom rod is connected to the base, and the movable rod is connected to the vortex generator plate; the second connecting rod includes an L-shaped rod consisting of a first branch rod and a second branch rod, the end of the first branch rod away from the second branch rod is hinged to the movable rod, and the end of the second branch rod away from the first branch rod is hinged to the bottom rod; wherein, when the telescopic drive member is at a first length, the first branch rod is parallel to the movable rod, the second branch rod is parallel to the bottom rod, and part of the structure of the vortex generator plate is flipped out of the mounting port.

[0011] Preferably, a locking ring is provided on the vortex generator plate, and a locking mechanism is also provided in the installation space; the locking mechanism is electromagnetically controlled and elastically connected to the installation space; during the movement of the vortex generator plate to close the installation port, the locking ring can push the locking mechanism, and then lock the locking ring under the action of elastic force, and the locking mechanism can release the lock of the locking ring under electromagnetic control.

[0012] Preferably, it also includes a windscreen mechanism connected to the cover plate or the base; when at least part of the structure of the vortex generator plate is flipped out of the installation opening, the windscreen mechanism can cover at least part of the portion of the installation opening opened by the vortex generator plate.

[0013] Preferably, the windshield curtain mechanism includes a windshield curtain shaft, a windshield curtain driving component and a windshield curtain plate. The windshield curtain shaft is connected to the windshield curtain driving component. When the windshield curtain driving component drives the windshield curtain shaft to rotate, it can drive the windshield curtain plate to wind or unfold relative to the windshield curtain shaft, thereby opening or covering the installation port.

[0014] Preferably, it further comprises a windshield, the opening of the windshield faces the installation port, the tilting mechanism is arranged in the windshield, and the wind curtain mechanism is arranged between the windshield and the cover plate.

[0015] A rail vehicle comprises a vehicle body, a mounting groove is provided on the top of the vehicle body, and the vortex generator as described above, wherein the base is mounted in the mounting groove.

[0016] A method for controlling a vortex generator, using the above vortex generator, wherein when the vortex generator plate closes the mounting opening, the first surface of the vortex generator plate is external to the vortex generator;

[0017] The control method includes:

[0018] When the train needs to increase resistance, the tilting mechanism is controlled to drive the vortex generator plate to move, so that at least a portion of the structure of the vortex generator plate is flipped out of the installation opening, and the first surface is controlled to face the direction of train travel;

[0019] When the train needs to reduce drag, the tilting mechanism is controlled to drive the vortex generator plate to move, so that at least a portion of the structure of the vortex generator plate is flipped out of the installation opening, and the first surface is controlled to face the side of the train.

[0020] The vortex generator provided by the present invention includes a vortex generator plate, a base, a cover plate and a tilting mechanism; the cover plate is connected to the base and encloses an installation space, and the tilting mechanism is installed in the installation space; a mounting opening is provided on the cover plate, and the vortex generator plate is connected to the tilting mechanism. Driven by the tilting mechanism, the vortex generator plate can be flipped to close the mounting opening or at least partially flip out of the mounting opening.

[0021] In this vortex generator, the vortex generator plate, driven by a tilting mechanism, flips to cover the mounting opening or flips out of the mounting opening to increase or reduce drag. Since the entire mounting space is not required in either the covered or flipped-out state, this helps reduce the space required for the mounting space. When the vortex generator is installed on the vehicle body, the space required by the vortex generator plate is also reduced. Furthermore, since the vortex generator plate can cover the mounting opening, there is no need for a separate seal to seal the mounting opening, thus achieving high utilization and versatility of the vortex generator plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of a specific embodiment 1 of the vortex generator provided by the present invention;

[0024] Figure 2 This is a schematic diagram of the vortex generator plate in the expanded state of the first specific embodiment of the vortex generator provided by the present invention;

[0025] Figure 3 This is a schematic diagram of a vortex generator plate in a closed state according to a first embodiment of the vortex generator provided by the present invention;

[0026] Figure 4This is a schematic diagram of the tilting mechanism and the rotating mechanism of the first embodiment of the vortex generator provided by the present invention;

[0027] Figure 5 This is a schematic diagram of the principle of the tilting mechanism driving the vortex generator plate to move in the first specific embodiment of the vortex generator provided by the present invention;

[0028] Figure 6 This is a schematic diagram of the locking mechanism of the first specific embodiment of the vortex generator provided by the present invention;

[0029] Figure 7 This is a schematic diagram of a wind curtain mechanism of a specific embodiment 1 of the vortex generator provided by the present invention;

[0030] Figure 8 This is a schematic diagram of the installation of the wind screen mechanism of the first specific embodiment of the vortex generator provided by the present invention;

[0031] Figure 9 This is a schematic diagram of the installation groove of the vortex generator of the first specific embodiment of the vortex generator provided by the present invention;

[0032] Figure 10 This is a schematic diagram of the principle of the vortex generator according to the first embodiment of the present invention when applied to train resistance increase, with the rightward arrow pointing to the direction of train travel;

[0033] Figure 11 This is a schematic diagram of the principle of the first specific embodiment of the vortex generator provided by the present invention when applied to train drag reduction, and the rightward arrow points to the direction of train travel.

[0034] Reference numerals:

[0035] Base 1, installation space 11;

[0036] Cover plate 2, mounting opening 21;

[0037] Vortex generator plate 3, locking ring 31, first surface 32;

[0038] Rotating mechanism 4, rotating platform 41, rotating seat 42, rotating driving member 43;

[0039] Tilt mechanism 5, connecting rod mechanism 51, bottom rod 511, first connecting rod 512, second connecting rod 513, first branch rod 5131, second branch rod 5132, movable rod 514, telescopic driving member 52;

[0040] Locking mechanism 6, lock base 61, lock hook 62, electromagnet 63, elastic member 64, lock tongue surface 65;

[0041] Car body 7, mounting slot 71, lead car 72, tail car 73;

[0042] Windshield curtain mechanism 8, windshield curtain track 81, windshield curtain plate 82, windshield curtain shaft 83, windshield curtain driving member 84;

[0043] Wind shield 9, sealing plate 91. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] The core of the present invention is to provide a vortex generator, a rail vehicle including the vortex generator, and a control method for the vortex generator using the vortex generator, which can reduce the space occupied by the vortex generator plate on the vehicle body.

[0046] For a specific embodiment of the vortex generator provided by the present invention, please refer to Figures 1 to 11 , comprising a vortex generator plate 3, a base 1, a cover plate 2, and a tilting mechanism 5. The cover plate 2 is connected to the base 1 and encloses an installation space 11, and the tilting mechanism 5 is installed in the installation space 11. In this case, the vortex generator can be assembled as a whole in a modular manner on the vehicle body 7, such as the lead vehicle 72 or the tail vehicle 73.

[0047] The cover plate 2 has a mounting opening 21, and the vortex generator plate 3 is connected to the tilting mechanism 5. Driven by the tilting mechanism 5, the vortex generator plate 3 can be flipped to close the mounting opening 21 (specifically, the mounting opening 21 can be sealed and covered) or at least partially flipped out of the mounting opening 21. The tilting mechanism 5 is equivalent to adjusting the tilt degree of the vortex generator plate 3 relative to the mounting opening 21. Figure 3 As shown, when the vortex generator plate 3 closes the mounting opening 21, the vortex generator plate 3 is in a retracted state or a closed state, and the first surface 32 of the vortex generator plate 3 is placed outside the vortex generator. The first surface 32 can specifically be connected to the outer surface of the vehicle body 7, and the first surface 32 cooperates with the outer surface of the vehicle body 7 to keep the surface of the vehicle body smooth and smooth, so that the vehicle body 7 maintains a complete streamlined shape; Figure 2 As shown, when at least a portion of the structure of the vortex generator plate 3 is flipped out of the installation opening 21 , the vortex generator plate 3 is in an expanded state.

[0048] In this embodiment, the vortex generator plate 3 is driven by the tilting mechanism 5 to perform a flipping motion to cover the mounting opening 21 or flip out of the mounting opening 21 to increase or reduce drag. Since the mounting space 11 does not need to completely accommodate the entire vortex generator plate 3 in either the covered or flipped out state, the space occupied by the mounting space 11 is reduced. When the vortex generator is installed on the vehicle body 7, the space occupied by the vortex generator plate 3 on the vehicle body 7 is also reduced accordingly. In addition, since the vortex generator plate 3 can cover the mounting opening 21, there is no need to provide an additional seal to cover the mounting opening 21, thereby achieving high utilization and versatility of the vortex generator plate 3.

[0049] In order to make the vortex generator have the functions of increasing and reducing resistance at the same time, the vortex generator also includes a rotating mechanism 4 arranged in the installation space 11. Figure 4 As shown, the vortex generator plate 3 is connected to the rotating mechanism 4 via the tilting mechanism 5. The rotating mechanism 4 is used to drive the vortex generator plate 3 to rotate around the first axis, and specifically, the vortex generator plate 3 can rotate arbitrarily within 360°.

[0050] Wherein, the first axis passes through the mounting opening 21, and in the unfolded state, the orientation of the vortex generator plate 3, specifically the orientation of the first surface 32, can be adjusted by setting the rotating mechanism 4. Specifically, as Figure 10 As shown, the first surface 32 of the vortex generator plate 3 is substantially perpendicular to the train travel direction or faces the front of the train travel direction ( Figure 10 Middle right), resistance can be increased; Figure 11 As shown, the first surface 32 of the vortex generator plate 3 is substantially parallel to the train travel direction or facing the side of the train ( Figure 11 Of course, in other embodiments, the vortex generator plate 3 can also be directly connected to the base 1 through the tilting mechanism 5. Its orientation in the deployed state is fixed and can only increase or reduce drag.

[0051] Among them, such as Figure 4 As shown, the rotating mechanism 4 includes a rotating table 41 and a rotating drive member 43. The vortex generator plate 3 is connected to the rotating table 41 via a tilting mechanism 5. The tilting mechanism 5 is disposed on the rotating table 41. The rotating table 41 can be a circular plate, and the first axis is the axis of the circular plate. The rotating drive member 43 is used to drive the rotating table 41 to rotate about the first axis. The rotating drive member 43 can optionally be a rotating drive motor. To ensure that there is sufficient space on the rotating table 41 for the vortex generator plate 3 to move, the rotating drive member 43 and the tilting mechanism 5 can be located on both sides of the rotating table 41 in the extension direction of the first axis.

[0052] In addition, in order to realize the modular installation of the rotating mechanism 4, as shown in FIG. Figure 4As shown, the rotating mechanism 4 also includes a rotating base 42, which is fixed to the base 1. The rotating platform 41 is rotatably connected to the rotating base 42, and the tilting mechanism 5, the rotating platform 41, and the rotating base 42 are arranged in sequence along a direction away from the mounting opening 21, specifically along the extension direction of the first axis. The rotating drive member 43 is mounted on the rotating base 42, wherein the rotating base 42 may also be provided with a reducer, specifically a small gear reducer, which has functions such as reducing the speed, increasing the torque, and changing the direction of rotation. The rotating drive member 43 is connected to the rotating platform 41 through a transmission structure such as a reducer to drive the rotating platform 41 to rotate about the first axis.

[0053] Regarding the arrangement of the tilting mechanism 5, as shown in FIG. Figure 4 As shown, the tilting mechanism 5 includes a connecting rod mechanism 51 and a telescopic driving member 52. The connecting rod mechanism 51 and the telescopic driving member 52 are both hinged to the rotating mechanism 4 and the vortex generator plate 3. The telescopic driving member 52 drives the vortex generator plate 3 to flip around the second axis through telescopic movement. The second axis is located on one side of the vortex generator plate 3.

[0054] That is to say, the vortex generator plate 3 performs a compound motion in space instead of rotating around the rotating axis on the vortex generator plate 3. The vortex generator plate 3 can be flipped in mid-air, which is beneficial to avoid interference between the vortex generator and other components.

[0055] Among them, such as Figure 4 As shown, the two connecting rod mechanisms 51 can be symmetrically arranged on both sides of the telescopic drive member 52, and the support stability of the vortex generator plate 3 is maintained by three-point support. Specifically, the connecting rod mechanism 51 and the telescopic drive member 52 are both hinged to the rotating table 41 and the vortex generator plate 3. Specifically, the telescopic drive member 52 is a tilting drive cylinder, the end of its piston rod is hinged to the vortex generator plate 3, and the cylinder body is hinged to the rotating table 41, so as to control the tilt angle of the vortex generator plate 3 relative to the rotating table 41 by the extension and contraction of the piston rod. In addition, the tilting cylinder can also be replaced by other forms of linear drive mechanisms such as electric push rods. In the embodiment where the rotating mechanism 4 is not provided, the connecting rod mechanism 51 and the telescopic drive member 52 can also be directly connected to the base 1.

[0056] Among them, such as Figure 4 As shown, the movable rods 514 of the two connecting rod mechanisms 51 can be fixed to the two ends of the vortex generator plate 3 in the extension direction of the second axis, so as to achieve more stable support for the vortex generator plate 3 and ensure smooth tilt adjustment of the vortex generator plate 3 with a large length.

[0057] Among them, such as Figure 4As shown, the linkage mechanism 51 includes a first link 512, a movable link 514, a second link 513, and a bottom link 511, which are hinged in sequence to form a four-link structure. In this case, the hinge points of the first link 512 and the second link 513 on the bottom link 511 and the movable link 514 are different. The bottom link 511 is connected to the base 1, specifically fixed to the rotating table 41, and the movable link 514 is connected to the vortex generator plate 3, specifically fixedly connected. Of course, the movable link 514 can also be eliminated, and the first link 512 and the second link 513 can be directly hinged to the vortex generator plate 3. The second axis can specifically be the hinge axis of the first link 512 and the bottom link 511.

[0058] Specifically, the first connecting rod 512 is a straight rod. The second connecting rod 513 includes an L-shaped rod consisting of a first branch rod 5131 and a second branch rod 5132. The end of the first branch rod 5131 away from the second branch rod 5132 is hinged to the movable rod 514, and the end of the second branch rod 5132 away from the first branch rod 5131 is hinged to the bottom rod 511. When the telescopic driving member 52 is at the first length, Figure 5 The connecting rod mechanism and the vortex generator plate 3 in the solid line part, the first branch rod 5131 is parallel to the movable rod 514, the second branch rod 5132 is parallel to the bottom rod 511, and part of the structure of the vortex generator plate 3 is flipped out of the installation opening 21. At this time, the vortex generator plate 3 is in the expanded state, and the second branch rod 5132 has a good supporting capacity for the vortex generator plate 3. In addition, when the vortex generator plate 3 is tilted and adjusted from the expanded state to the retracted state, refer to Figure 5 The connecting rod mechanism and the vortex generator plate 3 in the dotted part, the vortex generator plate 3 as a whole covers the position where the mounting port 21 is located, and the vortex generator plate 3 is supported away from the rotating table 41 by the first connecting rod, the second connecting rod and the telescopic drive member 52, and is not in the same plane with the rotating table 41.

[0059] In this embodiment, the tilt adjustment of the vortex generator plate 3 is a compound motion. The telescopic drive member 52 drives the vortex generator plate 3 to swing, and the connecting rod mechanism 51 adaptively moves. This allows the vortex generator plate 3 to be adjusted along a preset and reasonable path during tilt adjustment, avoiding collision with the rotating platform 41. Of course, in other embodiments, the second connecting rod 513 can also be a straight rod.

[0060] In order to ensure that the vortex generator can reliably maintain its state when closed, Figure 4 and Figure 6 As shown, a locking ring 31 is provided on the vortex generator plate 3 , and a locking mechanism 6 is further provided in the installation space 11 , which can lock the locking ring 31 when the vortex generator plate 3 is closed.

[0061] Specifically, if Figure 6As shown, the locking mechanism 6 comprises a lock base 61 secured to the rotating platform 41 by welding or other means, and a lock hook 62 rotatably connected to the lock base 61. When the vortex generator plate 3 is retracted, the lock ring 31 fits over the lock hook 62, locking it with a solid line. This provides a more secure fit for the vortex generator plate 3, preventing significant sway during high-speed train travel that could affect its streamlined integrity, or the possibility of it opening in strong winds when deployed at the tail car 73, posing a safety hazard. To deploy the vortex generator plate 3, the lock hook 62 is first withdrawn from the lock ring 31, and then the telescopic drive member 52 is controlled to extend.

[0062] Furthermore, to achieve automatic control of the locking mechanism 6, the locking mechanism 6 is electromagnetically controlled and elastically connected to the installation space 11, thereby enabling automated locking. As the vortex generator plate 3 closes the installation opening 21, the locking ring 31 pushes the locking mechanism 6, locking it under the action of the elastic force. Furthermore, the locking mechanism 6 can release the locking ring 31 under electromagnetic control, thereby locking the vortex generator plate 3 in its retracted state and automatically unlocking it when it is needed.

[0063] Specifically, if Figure 6 As shown, an electromagnet 63 is mounted on the lock base 61, and a locking hook 62 is made of a ferromagnetic material. An elastic member 64, specifically a torsion spring, is disposed between the locking hook 62 and the lock base 61. When the electromagnet 63 is energized, it magnetically attracts the locking hook 62, causing it to withdraw from the lock ring 31, thereby unlocking the vortex generator plate 3 and allowing it to unfold. When the electromagnet 63 is de-energized, the locking hook 62 returns to its original position under the action of the elastic member 64, maintaining the locked state of the lock ring 31 and the vortex generator plate 3.

[0064] It should be noted that when the vortex generator plate 3 is in the deployed state, the electromagnet 63 is also de-energized, saving energy and increasing its service life. At the same time, when the vortex generator plate 3 needs to be retracted from the deployed state, the electromagnet 63 is also de-energized. Correspondingly, the lock hook 62 is provided with a lock tongue surface 65. When the vortex generator plate 3 is tilted and retracted, the lock ring 31 contacts the lock tongue surface 65 of the lock hook 62, causing the lock hook 62 to automatically rotate toward the electromagnet 63, thereby allowing the vortex generator plate 3 to be retracted smoothly without the need for control by the electromagnet 63. When the vortex generator plate 3 is retracted into place, the lock hook 62 will still reset under the action of the elastic member 64, achieving a state in which the lock hook 62 and the vortex generator plate 3 are locked.

[0065] In addition, when the vortex generator plate 3 is in the deployed state and performing drag reduction, if the installation opening 21 remains open and directly connected to the installation space, it will cause an increase in resistance and reduce the overall drag reduction effect. Therefore, in this drag reduction state, it is best to seal the installation opening 21 to better ensure the drag reduction effect. Based on this, in this embodiment, the vortex generator is also provided with a wind curtain mechanism 8, which is connected to the cover plate 2 or the base 1 and is specifically built into the installation space. When the vortex generator plate 3 is in the drag reduction working state, the wind curtain mechanism 8 is opened to close the installation opening on the cover plate 2; when the vortex generator plate 3 needs to be retracted or is in the drag increase working state, the wind curtain mechanism 8 is retracted.

[0066] Among them, such as Figure 7 and Figure 8 As shown, when at least part of the structure of the vortex generator plate 3 is flipped out of the installation opening 21 , the wind screen mechanism 8 can cover at least part of the portion of the installation opening 21 opened by the vortex generator plate 3 .

[0067] Specifically, the windshield mechanism 8 includes a windshield shaft 83, a windshield driver 84, and a windshield plate 82. The windshield shaft 83 is connected to the windshield driver 84, which can be a motor. The windshield driver 84 can be connected to the windshield shaft 83 via a speed reducer for transmission. When the windshield driver 84 drives the windshield shaft 83 to rotate, it causes the windshield plate 82 to wind or unwind relative to the windshield shaft 83, thereby opening or blocking the installation opening 21.

[0068] Specifically, in the installation space, the windshield curtain shaft 83 is rotatably connected to the cover plate 2 , the end of the windshield curtain plate 82 is connected to the windshield curtain shaft 83 , and the windshield curtain driving member 84 is fixedly connected to the cover plate 2 .

[0069] In addition, in order to improve the stability of the movement of the windshield plate 82 and the reliability of the seal, the windshield mechanism 8 further includes a windshield track 81. The windshield track 81 is fixedly connected to the cover plate 2, and the edge of the windshield plate 82 is slidably connected to the windshield track 81.

[0070] When the vortex generator panel 3 is retracted, the windshield plate 82 is rolled up on the windshield shaft 83 in a cylindrical shape. At this point, the mounting opening 21 is covered by the vortex generator panel 3, ensuring the vehicle's exterior is streamlined. When the vortex generator panel 3 needs to be deployed to reduce drag, the rotating platform 41 rotates a certain angle about the second axis, and the windshield driver 84 drives the windshield shaft 83 to rotate, moving the windshield plate 82 along the windshield track 81 toward the center, i.e., toward the vortex generator panel 3, to a designated position, ensuring a sealed mounting opening 21. When the vortex generator panel 3 is ready to resume operation and before returning to the closed position, the windshield driver 84 drives the windshield shaft 83 to rotate in the opposite direction, returning the windshield plate 82 along the windshield track 81 and rolling it up on the windshield shaft 83 in a cylindrical shape. The vortex generator panel 3 can then be retracted.

[0071] It should be noted that when the first surface 32 of the vortex generator plate 3 is facing the direction of train travel to increase resistance, after the turntable 41 rotates to a corresponding angle, the windshield driving member 84 is not driven, that is, the windshield plate 82 remains in the same position as when the vortex generator is in the closed state, so that the installation port 21 remains open, thereby achieving the purpose of further increasing resistance.

[0072] Furthermore, to further ensure the sealing of the vortex generator plate 3 during drag reduction, a clearance groove can be provided on the windscreen plate 82 to avoid the telescopic drive member 52 and to minimize the space near the connecting rod mechanism 51. Furthermore, two windscreen mechanisms 8 can be provided, one on each side of the tilt mechanism 5, and these two windscreen mechanisms 8 can share the windscreen track 81.

[0073] To further improve the sealing effect, such as Figure 8 As shown, the vortex generator also includes a windshield 9. The opening of the windshield 9 faces the installation port 21, the tilting mechanism 5 is provided in the windshield 9, and the wind curtain mechanism 8 is provided between the windshield 9 and the cover plate 2. The windshield 9 can be composed of a rotating platform 41 and an annular sealing plate 91 provided between the rotating platform 41 and the wind curtain mechanism 8. The sealing plate 91 is fixedly connected to the cover plate 2, and the sealing plate 91 is provided corresponding to the wind curtain rail 81. The sealing plate 91 can reduce the structural space, reduce the airflow entering the installation space 11, and minimize the increase in train resistance and noise caused by the vortex generator plate 3.

[0074] The modular vortex generator provided in this embodiment can be used as a module of the head car 72 or the tail car 73 of a train such as a railway vehicle. Figure 9 As shown, a mounting slot 71 for mounting the module is provided on the top of the lead car 72 or the tail car 73. After the modular vortex generator is installed in the mounting slot 71, it just fills the mounting slot 71, so that the lead car 72 or the tail car 73 can maintain a streamlined shape.

[0075] The modular vortex generator provided in this embodiment, when applied to a rail vehicle, has the following working principles: the tilting mechanism 5 can adjust the tilt angle of the vortex generator plate 3 relative to the rotating mechanism 4, and the rotating mechanism 4 can adjust the angle of the vortex generator plate 3 relative to the centerline of the train, so that the vortex generator plate 3 produces different aerodynamic effects.

[0076] In addition to the above-mentioned vortex generator, the present invention also provides a rail vehicle, which includes a vortex generator. The vortex generator can specifically be the vortex generator provided in any of the above embodiments. The beneficial effects can be referred to the above embodiments accordingly.

[0077] The rail vehicle includes a vehicle body 7, a mounting groove 71 is defined on the top of the vehicle body 7, and the base 1 is mounted in the mounting groove 71. The vehicle body 7 includes a leading vehicle 72 and / or a trailing vehicle 73, and the vortex generator is mounted on the leading vehicle 72 or the trailing vehicle 73. Specifically, the base 11 is detachably mounted on the top of the leading vehicle 72 or the trailing vehicle 73 of the train.

[0078] By applying this vortex generator, the vortex generator plate 3 can be deployed and retracted by tilting and rotating. When the train is running normally, the vortex generator plate 3 is retracted, with the first surface 32 facing upward. The vortex generator plate 3 covers the installation opening 21. The vortex generator plate 3 can completely fill the installation opening 21 of the cover plate 2, so that the top of the leading car 72 or the trailing car 73 remains completely streamlined and does not affect the aerodynamic effect during normal train operation. When the vortex generator plate 3 needs to be deployed, the vortex generator plate 3 is first adjusted by the tilting mechanism 5 so that the first surface 32 faces the direction of the train's travel, and then adjusted by the rotating mechanism 4 so that the first surface 32 faces the outside of the leading car 72 or the trailing car 73, so as to achieve the purpose of changing the tail vortex strength and reducing drag. Alternatively, the first surface 32 of the vortex generator plate 3 is only adjusted to face the direction of the train's travel, which can increase the drag of the train and achieve the purpose of braking. While ensuring functionality, the lifting mechanism and lifting action are eliminated, avoiding the vortex generator plate 3 occupying a large amount of space on the top of the leading car 72 or the trailing car 73, further improving the practicality of the vortex generator plate 3.

[0079] In addition to the above-mentioned vortex generator and rail vehicle, the present invention further provides a control method for a vortex generator, which can be applied to the above-mentioned vortex generator and rail vehicle. In this case, when the vortex generator plate 3 closes the mounting opening 21 , the first surface 32 of the vortex generator plate 3 is positioned outside the mounting space 11 .

[0080] The control method includes:

[0081] S1: When the train needs to increase resistance, the tilting mechanism 5 is controlled to drive the vortex generator plate 3 to move, causing at least a portion of the vortex generator plate 3 to tilt out of the mounting opening 21, and controlling the first surface 32 to face the direction of train travel. In other embodiments, the first surface 32 can also face the opposite direction of train travel.

[0082] S2: When the train needs to reduce drag, the tilting mechanism 5 is controlled to drive the vortex generator plate 3 to move, so that at least part of the structure of the vortex generator plate 3 is flipped out of the installation opening 21, and the first surface 32 is controlled to face the side of the train.

[0083] It should be noted that two mounting openings 21 are provided in the vortex generator. These two mounting openings 21 can be provided on the vehicle body 7 in a direction perpendicular to the direction of travel of the train, and the two mounting openings 21 are respectively provided with vortex generator plates 3 and related control components. When reducing drag, the first surfaces 32 of the two vortex generator plates 3 are arranged in opposite directions, that is, each first surface 32 faces the side of the train it is approaching. Figure 11 In the orientation, the train travels to the right, and the sides of the train shown in the figure are its upper and lower sides. The first surface 32 of the upper vortex generator plate 3 shown in the figure faces upward, and the first surface 32 of the lower vortex generator plate 3 shown in the figure faces downward.

[0084] It should be noted that when an element is referred to as being "fixed" to another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected" to another element, it may be directly connected to the other element or there may be an intermediate element. In addition, in the description of the present invention, unless otherwise specified, "plurality," "plurality," and "plurality of groups" mean two or more.

[0085] Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features referred to.

[0086] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0087] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0088] The above describes in detail the vortex generator, rail vehicle, and control method for the vortex generator provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be noted that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications may be made to the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A vortex generator, characterized in that: The invention comprises a vortex generator plate (3), a base (1), a cover plate (2) and a tilting mechanism (5); the cover plate (2) is connected to the base (1) and encloses an installation space (11), and the tilting mechanism (5) is installed in the installation space (11); a mounting opening (21) is provided on the cover plate (2), the vortex generator plate (3) is connected to the tilting mechanism (5), and driven by the tilting mechanism (5), the vortex generator plate (3) can be flipped to close the mounting opening (21) or at least a part of the structure is flipped out of the mounting opening (21); the tilting mechanism (5) comprises a connecting rod mechanism (51) and a telescopic driving member (52), the connecting rod mechanism (51) and the telescopic driving member (52) are both hinged to the vortex generator plate (3); the telescopic driving member (52) drives the vortex generator plate (3) to flip around a second axis through telescopic movement, and the second axis is located on one side of the vortex generator plate (3); the connecting rod mechanism ( The vortex generator plate (3) is a vortex generator plate (51) comprising a first connecting rod (512), a movable rod (514), a second connecting rod (513), and a bottom rod (511) which are hinged in sequence to form a four-link structure. The bottom rod (511) is connected to the base (1), and the movable rod (514) is connected to the vortex generator plate (3). The second connecting rod (513) comprises an L-shaped rod consisting of a first branch rod (5131) and a second branch rod (5132). The first branch rod (5131) is away from the second branch rod (51 The end of the second branch rod (5132) is hinged to the movable rod (514), and the end of the second branch rod (5132) away from the first branch rod (5131) is hinged to the bottom rod (511); wherein, when the telescopic drive member (52) is at a first length, the first branch rod (5131) is parallel to the movable rod (514), the second branch rod (5132) is parallel to the bottom rod (511), and part of the structure of the vortex generator plate (3) is flipped out of the installation opening (21).

2. The vortex generator according to claim 1, characterized in that It also includes a rotating mechanism (4) provided in the installation space (11), the vortex generator plate (3) being connected to the rotating mechanism (4) via the tilting mechanism (5); the rotating mechanism (4) is used to drive the vortex generator plate (3) to rotate around a first axis, and the first axis passes through the installation opening (21).

3. The vortex generator according to claim 1, characterized in that A locking ring (31) is provided on the vortex generator plate (3), and a locking mechanism (6) is further provided in the installation space (11); the locking mechanism (6) is electromagnetically controlled and elastically connected to the installation space (11); during the movement of the vortex generator plate (3) to close the installation opening (21), the locking ring (31) can push the locking mechanism (6), thereby locking the locking ring (31) under the action of elastic force, and the locking mechanism (6) can release the lock of the locking ring (31) under electromagnetic control.

4. The vortex generator according to any one of claims 1 to 3, characterized in that It also includes a wind curtain mechanism (8) connected to the cover plate (2) or the base (1); when at least part of the structure of the vortex generator plate (3) is flipped out of the installation opening (21), the wind curtain mechanism (8) can cover the portion of the installation opening (21) that is at least partially opened by the vortex generator plate (3).

5. The vortex generator according to claim 4, characterized in that The windshield curtain mechanism (8) comprises a windshield curtain shaft (83), a windshield curtain driving member (84) and a windshield curtain plate (82). The windshield curtain shaft (83) is connected to the windshield curtain driving member (84). When the windshield curtain driving member (84) drives the windshield curtain shaft (83) to rotate, it can drive the windshield curtain plate (82) to be wound or unfolded relative to the windshield curtain shaft (83), thereby opening or covering the installation opening (21).

6. The vortex generator according to claim 4, characterized in that It also includes a windshield (9), the opening of which faces the mounting opening (21), the tilting mechanism (5) being arranged in the windshield (9), and the wind curtain mechanism (8) being arranged between the windshield (9) and the cover plate (2).

7. A rail vehicle, characterized in that: It comprises a vehicle body (7), wherein a mounting groove (71) is provided on the top of the vehicle body (7); and it further comprises the vortex generator according to any one of claims 1 to 6, wherein the base (1) is mounted in the mounting groove (71).

8. A method for controlling a vortex generator, characterized in that: The vortex generator according to any one of claims 1 to 7, wherein, when the vortex generator plate (3) closes the mounting opening (21), the first surface (32) of the vortex generator plate (3) is placed outside the vortex generator; The control method includes: When the train needs to increase resistance, the tilting mechanism (5) is controlled to drive the vortex generator plate (3) to move, so that at least a portion of the structure of the vortex generator plate (3) is flipped out of the installation opening (21), and the first surface (32) is controlled to face the direction of travel of the train; When the train needs to reduce drag, the tilting mechanism (5) is controlled to drive the vortex generator plate (3) to move, so that at least part of the structure of the vortex generator plate (3) is flipped out of the installation opening (21), and the first surface (32) is controlled to face the side of the train.

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