CN220263057U - Vortex generator and aircraft - Google Patents

Abstract

The embodiment of the utility model discloses a vortex generator and an aircraft, wherein the vortex generator comprises: the skin is provided with an accommodating window communicated with the accommodating cavity; the vortex generating assembly comprises a deformable part and a transmission part in transmission connection with the deformable part, wherein the transmission part is arranged in the accommodating cavity and is positioned near the accommodating window, so that at least part of the deformable part is exposed outwards through the accommodating window; the driving component is in driving connection with the transmission part, and drives the deformable part to switch between at least a protruding state and a flat state; when the deformable part is in a protruding state, the deformable part protrudes outwards through the accommodating window to form a vortex generating surface; when the deformable portion is in a flat state, a portion of the deformable portion exposed in the accommodating window closes the accommodating window in a flush manner with the external pneumatic surface. According to the utility model, the vortex generating surface can be actively controlled and formed, and the original appearance of the skin pneumatic surface can be ensured when the application does not work.

Description

Vortex generator and aircraft

Technical Field

The utility model relates to the field of aircrafts, in particular to an eddy current generator and an aircraft.

Background

In the aerospace industry, vortex generators are often mounted on aerodynamic surfaces of an aircraft (e.g., aircraft wings, elevator control surfaces, flaps, ailerons, etc.) to delay boundary layer air flow separation, which can result in reduced aerodynamic efficiency of the aerodynamic surfaces, increased drag and reduced lift on the aircraft, and in severe cases, stall of the aircraft. When airflow separation is inhibited by vortices generated by the vortex generators, aerodynamic surfaces (e.g., wings) may provide greater lift, thereby improving the low speed performance and maneuverability of the aircraft and reducing the landing and takeoff speeds of the aircraft.

However, conventional vortex generators are passive flow control devices that affect airflow during all phases of flight of an aircraft, but certain phases of flight of an aircraft do not require vortex generators. If the vortex generator is in a working state in all flight phases, the flight resistance of the aircraft can be increased, and the economy of the aircraft can be reduced.

Disclosure of Invention

The embodiment of the utility model provides a vortex generator and an aircraft, which can ensure the original shape of the aerodynamic surface of a skin when the vortex generator capable of being actively controlled does not work.

In order to solve the technical problems, the embodiment of the utility model discloses the following technical scheme:

in one aspect, there is provided a vortex generator comprising:

the outer surface and the inner surface of the outer skin are opposite to each other, the inner surface of the outer skin is enclosed to form a containing cavity, and the outer skin is provided with a containing window communicated with the containing cavity;

the vortex generating assembly comprises a transmission part which is in transmission connection with the deformable part, and the transmission part is arranged in the accommodating cavity and is positioned near the accommodating window, so that at least part of the deformable part is exposed outwards through the accommodating window; and

a driving assembly in driving connection with the transmission part, the driving assembly driving the deformable part to switch between at least a protruding state and a flattened state;

when the deformable part is in a protruding state, at least part of the deformable part protrudes outwards through the accommodating window to form a vortex generating surface;

when the deformable portion is in the flat state, a portion of the deformable portion exposed in the accommodating window closes the accommodating window in a flush manner with the external aerodynamic surface, so that the skin has a continuous external aerodynamic surface.

In addition to or in lieu of one or more of the features disclosed above, the vortex generating assembly further comprises a supplement in driving connection with the drive section; when the deformable part is in a protruding state, a notch is formed at the accommodating window in the protruding state; the drive assembly driving the refill to fill the gap such that the skin has a continuous exterior aerodynamic surface;

when the deformable part is in the flat state, the supplementing part is accommodated in the accommodating cavity.

In addition to or as an alternative to one or more of the features disclosed above, the deformable portion includes: a first folding plate and a second folding plate; the first folding plate and the second folding plate are hinged through a second hinge;

the transmission part includes: a guide rail and a bottom plate; the guide rail is provided with a first chute parallel to the accommodating cavity, and the bottom plate is in sliding connection with the first chute; the driving component is in transmission connection with the bottom plate;

wherein the first folding plate is hinged with the bottom plate through a first hinge; the first folding plate and the second folding plate which are mutually unfolded are arranged on the bottom plate in a stacking way, and the first folding plate and the second folding plate which are mutually unfolded are in the same plane with the accommodating window;

the base plate drives the first folding plate and the second folding plate to oppositely turn around the second hinge through the first hinge, and the first folding plate and the second folding plate are folded to form a vortex workpiece protruding out of the surface of the skin.

In addition to or as an alternative to one or more of the features disclosed above, the guide rail further comprises a second runner, the second runner extending in a direction inclined to the first runner, the second runner extending in a direction towards the receiving window;

the replenishment portion includes a replenishment plate; the supplementing plate is arranged on one side, far away from the first folding plate, of the first hinge, the supplementing plate is hinged with the first folding plate through the first hinge, and the supplementing plate is in sliding connection with the second sliding groove;

and in the process that the bottom plate drives the first folding plate and the second folding plate to turn over, the supplementing plate turns over around the first hinge until the supplementing plate supplements a notch formed at the accommodating window after the first folding plate and the second folding plate turn over.

In addition to or in lieu of one or more of the features disclosed above, the supplemental plate extends perpendicularly to the second chute extension direction by a slider slidably disposed within the second chute; the section of the sliding block is circular.

In addition to or in lieu of one or more of the features disclosed above, a pair of said guide rails are symmetrically disposed within said receiving cavity, said first and second slide slots each being disposed on opposite sides of said guide rails, said first and second slide slots being in communication;

the upper end face of the guide rail is exposed from the accommodating window, the upper end face of the guide rail and the skin are in the same plane, and the bottom plate, the first folding plate, the second folding plate and the supplementing plate are arranged between the pair of guide rails.

In addition to or in lieu of one or more of the features disclosed above, the drive assembly includes a controller coupled to the drive member and controlling the operating state of the drive member, an end of the drive member remote from the controller being drivingly coupled to the base plate.

In addition to or as an alternative to one or more of the features disclosed above, the driver is a memory alloy spring.

In addition to or in lieu of one or more of the features disclosed above, the vortex generating assembly further comprises:

the base plate fills the accommodating window at one side of the second folding plate far away from the first folding plate, the base plate and the skin are in the same plane, the base plate is fixedly connected with the skin, and the second folding plate is hinged with the base plate through a third hinge.

In addition to or alternatively to one or more of the features disclosed above, the projection of the base plate at least partially overlaps the projection of the guide rail in a direction perpendicular to the receiving window.

In addition to or in lieu of one or more of the features disclosed above, the first and second fold panels, which are unfolded from each other, abut the bottom panel.

In addition to, or in lieu of, one or more of the features disclosed above, the vortex workpiece is perpendicular to the receiving window.

In another aspect, an aircraft is further disclosed that includes, in addition to or instead of one or more of the features disclosed above, a vortex generator as set forth in any one of the above, at least one of the vortex generators being disposed on at least one of a wing, an elevator control surface, a slat, or a flap of the aircraft.

One of the above technical solutions has the following advantages or beneficial effects: the vortex generating assembly of this technical scheme adopts the deformable portion that can warp in the holding window, but drive assembly drive deformable portion is protruding at the holding window and is formed the vortex and take place the face, and but the deformable portion can not form extra arch at the covering surface under the level state, can guarantee the pneumatic appearance of this application at the installation department covering at the maximum, guarantees pneumatic efficiency.

Drawings

The technical solution and other advantageous effects of the present utility model will be made apparent by the following detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings.

FIG. 1 is a schematic view of a vortex generator in a flat state according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a vortex generator according to an embodiment of the present utility model in a flat state at another view angle;

FIG. 3 is a cross-sectional view of a vortex generator in a flattened state provided in accordance with an embodiment of the present utility model;

FIG. 4 is a schematic view of a vortex generator in a transitional state according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a vortex generator in a transitional state at another view angle according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a vortex generator in a transitional state provided in accordance with an embodiment of the present utility model;

FIG. 7 is a schematic view showing a structure of a vortex generator in a protruding state according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a vortex generator according to an embodiment of the present utility model in another view of the protruding state;

fig. 9 is a cross-sectional view of a vortex generator in a protruding state provided according to an embodiment of the present utility model;

in the figure: 100-covering; 101-accommodating windows; 102-notch; 210-a guide rail; 211-a chute; 2111-a first chute; 2112-a second chute; 220-a bottom plate; 221-a first hinge; 230-supplementary plate; 231-slide block; 241-a first folding panel; 242-a second folding panel; 243-a second hinge; 244-a third hinge; 250-substrate; 260-eddy current work piece; 300-a drive assembly; 310-a controller; 320-driving member.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and detailed description. It should be understood that the detailed description is intended to illustrate the utility model, and not to limit the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "plurality" means two or more, unless specifically defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1, 2 and 3, fig. 1, 2 and 3 show schematic structural diagrams of a vortex generator in a flat state according to an embodiment of the present utility model, where the vortex generator includes: skin 100, vortex generating assembly, and drive assembly 300. The skin 100 is disposed on a aerodynamic surface of an aircraft (e.g., an aircraft wing, an elevator control surface, a flap, an aileron, etc.), the skin 100 having a receiving cavity therein for receiving the vortex generating assembly and the drive assembly 300, the skin 100 surface having a receiving window 101, the receiving cavity in communication with the receiving cavity such that the vortex generating assembly is partially exposed from the receiving window 101. The driving assembly 300 is in driving connection with the vortex generating assembly, and the driving assembly 300 drives the vortex generating assembly to change working conditions, so that the part of the vortex generating assembly exposed from the accommodating window 101 changes the aerodynamic shape of the skin 100, and further the aerodynamic efficiency of the aircraft is changed. The drive assembly 300 has at least two conditions, a flat condition and a raised condition. When the driving assembly 300 is in a working condition of a flat state, the vortex generating assembly does not change the aerodynamic shape of the skin 100, maintains the original aerodynamic shape of the aircraft, and ensures the aerodynamic performance of the skin 100 and the aircraft. When the driving assembly 300 is in the protruding state, the vortex generating assembly forms a vortex working member 260 (shown in fig. 7 and 9) on the surface of the skin 100, the vortex working member 260 changes the aerodynamic shape of the skin 100, and when the airflow passes through the surface of the skin 100, the vortex working member 260 generates vortex, so as to inject kinetic energy into the surface of the skin 100, thereby improving the aerodynamic performance of the skin 100.

With continued reference to fig. 1, 2 and 3, the surface of the skin 100 is provided with a receiving window 101, and the receiving window 101 has a square structure. The vortex generating assembly includes: deformable portion, supplementary portion and drive portion. The deformable part and the supplementing part are in transmission connection with the transmission part, and the transmission part is in driving connection with the driving assembly. The driving assembly drives the transmission part to switch the deformable part between the protruding state and the flat state. When the deformable part is in a protruding state, at least part of the deformable part protrudes outwards through the accommodating window to form a vortex generating surface; the deformable part is in a protruding state to form a notch at the accommodating window; the drive assembly drives the refill to fill the gap 102 such that the skin 100 has a continuous exterior aerodynamic surface. When the deformable portion is in a flat state, the portion of the deformable portion exposed in the accommodating window closes the accommodating window 101 in a flush manner with the external aerodynamic surface, so that the skin 100 has a continuous external aerodynamic surface; the supplementing part is accommodated in the accommodating cavity.

The vortex generating assembly has a first direction x, a second direction y and a third direction z intersecting and perpendicular to each other. The first direction x is parallel to the substantially planar surface of the skin 100, and is the direction in which airflow flows over the surface of the skin 100 during flight.

It should be appreciated that in this embodiment, the skin 100 surfaces are all in a plane. However, for the aerodynamic profile of an aircraft, the skin 100 surface may be a generally flat face having a curvature.

As shown in fig. 1 and 2, the deformable portion includes: a first folding plate 241 and a second folding plate 242. The first folding plate 241 and the second folding plate 242 are disposed at the receiving window 101 to be foldable with each other. The unfolded first folding plate 241 and the second folding plate 242 are in the same plane as the receiving window 101; the folded first folding plate 241 and the second folding plate 242 form a vortex work piece 260 protruding from the surface of the skin 100 at the receiving window 101. The transmission part includes a base plate 220 and a guide rail 210. The bottom plate 220 is driven by the driving assembly to move along the extending direction of the guide rail 210, the bottom plate 220 is in driving connection with the first folding plate 241, and the position of the bottom plate 220 on the guide rail 210 is changed to change the folding state between the first folding plate 241 and the second folding plate 242. The replenishment portion includes a replenishment plate 230. The supplementary board 230 is also in driving connection with the bottom board 220, when the first folding board 241 and the second folding board 242 are folded and folded, a gap 102 is formed at the accommodating window 201, and the bottom board 220 drives the first folding board 241 and the second folding board 242 to be folded and folded, and simultaneously, the bottom board 220 drives the supplementary board 230 to move to the gap 102 to close the gap 102.

Specifically, a pair of guide rails 210 are symmetrically disposed at both sides of the length direction of the accommodating window 101, and opposite sides of the guide rails 210 have sliding grooves 211. The slide groove 211 includes a first slide groove 2111 and a second slide groove 2112, and the first slide groove 2111 intersects with the extending direction of the second slide groove 2112. The first chute 2111 extends in a first direction x. The base plate 220 and the supplemental plate 230 are both slidably coupled to the rail 210. The bottom plate 220 has a plate-shaped structure, two ends of the bottom plate 220 along the second direction y are slidably received in the first sliding groove 2111, and the bottom plate 220 is slidable along the extending direction (first direction x) of the first sliding groove 2111. The supplementary plate 230 has a plate-shaped structure, the supplementary plate 230 is slidably connected with the second chute 2112, two side edges of the supplementary plate 230 extend away from each other to form symmetrical sliding blocks 231, the sliding blocks 231 are matched with the second chute 2112, and the sliding blocks 231 have axes extending along the second direction y. The part of the slider 231 accommodated in the second slide groove 2112 is circular in cross section so that the supplementary plate 230 plays a guiding role for the rotation of the supplementary plate 230 while the supplementary plate 230 can slide in the extending direction of the second slide groove 2112. The supplementary plate 230 is hinged to the base plate 220, and one side of the supplementary plate 230 adjacent to the base plate 220 is hinged to the base plate 220 by a first hinge 221, and the first hinge 221 extends in the second direction y.

The vortex generating assembly further includes a base plate 250. A first folding plate 241, a second folding plate 242, and a base plate 250 are provided above the bottom plate 220 in this order along the first direction x, and the first folding plate 241, the second folding plate 242, and the base plate 250 are exposed in the accommodating window 101, with the first folding plate 241, the second folding plate 242, and the base plate 250 being in the same substantially flat plane as the surface of the skin 100. The first folding plate 241 is hinged to the supplemental plate 230 and the bottom plate 220 by a first hinge 221, the first folding plate 241 is hinged to the second folding plate 242 by a second hinge 243, and the second folding plate 242 is hinged to the base plate 250 by a third hinge 244. The base plate 250 is fixedly connected to the skin 100. In the flat state, the first folding plate 241, the second folding plate 242, the base plate 250 and the skin 100 are all in a substantially flat plane, the vortex generating assembly does not change the aerodynamic shape of the skin 100, maintains the original aerodynamic shape of the aircraft, and ensures the aerodynamic performance of the skin 100 and the aircraft.

The base plate 250 is fixedly connected with the skin 100, and the guide rail 210 is installed in the accommodating cavity below the base plate 250, so that the installation, the disassembly or the maintenance of the whole vortex generating assembly are facilitated. In this embodiment, the up end of guide rail 210 exposes from accommodation window 101, guide rail 210 and skin 100 looks fixed connection, so that in the installation, through the accommodation window 101 on skin 100 surface can send into the accommodation intracavity with the vortex generation subassembly of this application and can fix the dress outside skin 100, and the non-operating personnel must be under the skin 100 space and be under construction, avoided the installation of this application to need implement before the installation of skin 100, also make this application can install the aircraft additional at the later stage, the installation of this application has also been reduced simultaneously, maintenance and maintenance cost.

Referring to fig. 4, 5 and 6, fig. 4, 5 and 6 are schematic structural views of a vortex generator in a transitional state according to an embodiment of the present utility model, when the bottom plate 220 is driven by the driving assembly 300 to slide in the first direction x, the sliding block 231 slides along the extending direction of the second sliding groove 2112 toward the accommodating window 101. During the sliding of the supplementary plate 230, the supplementary plate 230 rotates clockwise about the first hinge 221 until the slider 231 enters the first chute 2111 and the supplementary plate 230 rotates to be parallel to the surface of the skin 100. While the supplemental plate 230 slides in the first direction x, the bottom plate 220 applies a force to the supplemental plate 230 and the first folding plate 241 through the first hinge 221, the first hinge 221 moves closer to the third hinge 244 along the first direction x, and the first folding plate 241 and the second folding plate 242 are pressed by the force to fold upside down in the third direction z. During the process of turning and folding the first folding plate 241 and the second folding plate 242, the second folding plate 242 rotates clockwise about the third hinge 244, the first folding plate 241 rotates counterclockwise about the first hinge 221, and the first folding plate 241 and the second folding plate 242 rotate in opposite directions about the second hinge 243 until the first folding plate 241 is attached to the second folding plate 242.

The accommodating window 101 includes a notch 102, and a portion of the accommodating window 101 that is originally closed by the first folding plate 241 and the second folding plate 242 in the unfolded state is left free by displacement of the first folding plate 241 and the second folding plate 242 in the transitional state, and the portion of the accommodating window 101 left free is the notch 102.

Referring to fig. 7, 8 and 9, fig. 7, 8 and 9 are schematic structural diagrams of a vortex generator in a protruding state according to an embodiment of the present utility model, a supplementary plate 230 is driven by a bottom plate 220 to move along an extending direction of a second chute 2112, and the supplementary plate 230 rotates around a first hinge 221, the supplementary plate 230 slides to a position where the window 101 is accommodated, and the supplementary plate 230 rotates to be parallel to a surface of the skin 100, and the supplementary plate 230 is in the same substantially flat plane with the surface of the skin 100. The first folding plate 241 and the second folding plate 242 are attached to form the vortex workpiece 260, when the airflow passes through the vortex workpiece 260, the surface of the skin 100 generates vortex, kinetic energy is injected into the boundary layer on the surface of the skin 100, and the aerodynamic performance of the skin 100 is improved. In the protruding state, the first folding plate 241 and the second folding plate 242 are folded and attached to form the vortex workpiece 260, and meanwhile, the supplementing plate 230 seals the notch 102 formed at the accommodating window 101 due to displacement of the first folding plate 241 and the second folding plate 242, so that the overall appearance of the skin 100 is ensured, unnecessary turbulence is prevented from being formed on the surface of the skin 100 due to the fact that air flow enters the accommodating cavity through the notch 102, the aerodynamic appearance of the skin 100 is damaged, and the aerodynamic performance is reduced.

The vortex work piece 260 is perpendicular to the accommodating window 101, and the vortex work piece 260 has a vortex generating surface, which is a surface of the vortex work piece 260 facing the front side direction of the aircraft. It is understood that the vortex generating surface is determined according to the installation direction of the vortex generator of the present application; when the first folding plate 241 is disposed on a side close to the front side direction of the aircraft, the vortex generating surface is the surface of the first folding plate 241 facing outward; when the second folding plate 242 is disposed on a side near the forward direction of the aircraft, the vortex generating surface is the surface of the second folding plate 242 facing outward.

The vortex generating assembly of the application adopts the hinge system to realize the retraction of the vortex working piece 260 in the vortex generator, and is matched with the guide rail 210 accommodated in the accommodating cavity, so that the vortex generating assembly can not form extra bulges or steps on the surface of the skin 100 in a flat state, the supplementing plate 230 can block the notch 102 in a protruding state to avoid the formation of a cavity on the surface of the skin 100, the appearance of the skin 100 at the installation position of the application can be guaranteed to the greatest extent, and the pneumatic efficiency is guaranteed. The vortex generating assembly has a simple mechanical structure, occupies less space under the skin 100, is less limited in mounting positions on the aircraft, and can be mounted at a position with a thinner profile of the aircraft, such as near the trailing edge of the wing.

Referring to fig. 2, 5 and 8, the driving assembly 300 includes a controller 310 and a driver 320. The controller 310 is fixedly installed on the surface of the skin 100 facing the accommodating cavity, and the controller 310 is arranged on the side close to the bottom plate 220. Both ends of the driving member 320 are connected to the base plate 220 and the controller 310, respectively, and the extending direction of the driving member 320 extends along the first direction x, and the driving member 320 extends or shortens along the first direction x. The controller 310 controls the driving member 320 to extend or retract so that the bottom plate 220 slides in the first direction x within the first chute 2111.

In the present embodiment, the driving member 320 is a memory alloy spring, and the controller 310 controls the elongation or shortening of the memory alloy spring by controlling the temperature state of the memory alloy spring. The driving member 320 adopts the technical scheme of a memory alloy spring, the memory alloy spring does not need to be used for servo and power supply, and the memory alloy spring has small volume and high practicability.

Alternatively, in another embodiment, the controller 310 is a cylinder, and the driving member 320 is a telescopic rod, and the cylinder drives the telescopic rod to perform telescopic motion along the first direction x. In this embodiment, when the memory alloy spring is in the normal temperature state, the memory alloy spring maintains the initial extended state, and the memory alloy spring drives the bottom plate 220 to move in the opposite direction of the first direction x, so that the supplementary plate 230 at the other end of the bottom plate 220 slides into the accommodating cavity, the first folding plate 241 and the second folding plate 242 are unfolded in the accommodating window 101, and the vortex generating assembly maintains the flat state. When the memory alloy spring is heated, the memory alloy spring contracts, which in turn drives the base plate 220 in a first direction x, causing the first folding plate 241 and the second folding plate 242 to fold into the eddy current workpiece 260 forming the surface of the skin 100. Alternatively, in another embodiment, the controller 310 is a rotary driver, the driving member 320 is a screw rod, the rotary driver drives the screw rod to rotate around its own axis, a screw hole adapted to the screw rod is provided in the bottom plate 220, the screw rod is accommodated in the screw hole, and the rotary driver drives the screw rod to rotate so as to control the length of the screw rod in the rotary hole and thus control the movement state of the bottom plate 220.

It should be understood that the driving assembly 300 may adopt different technical solutions according to actual requirements, and different vortex generators on the same aircraft may adopt driving assemblies 300 of different technical solutions, which is not limited herein.

Specifically, the working method of the vortex generator comprises the following steps:

in the flat state, the first folding plate 241 and the second folding plate 242 are accommodated at the accommodating window 101, the second folding plate 242, the first folding plate 241 and the base plate 250 are in the same approximately flat plane with the skin 100, the second folding plate 242, the first folding plate 241 and the base plate 250 complement the aerodynamic surface of the skin 100 at the accommodating window 101, the aerodynamic shape of the skin 100 is not changed, the original aerodynamic shape of the aircraft is maintained, and the aerodynamic performance of the skin 100 and the aircraft is ensured.

When the aircraft requires the vortex generator of the present application to generate a vortex to improve aerodynamic performance, the drive assembly 300 drives the bottom plate 220 to move along the first direction x, the first folding plate 241 and the second folding plate 242 rotate and lift around the second hinge 243, and the supplementary plate 230 rotates and lifts around the first hinge 221 while sliding along the extending direction of the second sliding chute 2112 until the first folding plate 241 and the second folding plate 242 are folded and attached to form the vortex work piece 260, and the airflow forms a vortex when passing through the vortex work piece 260. The supplemental panel 230 slides to the receiving window 101 and complements the gap 102 created by the lifting of the first and second folding panels 241, 242.

When the vortex generator of the present application is not required to generate the vortex when the aircraft enters the stationary state, the driving assembly 300 drives the bottom plate 220 to move in the opposite direction of the first direction x, the end of the supplementary plate 230 away from the bottom plate 220 is guided by the second chute 2112 to sink while the supplementary plate 230 rotates counterclockwise about the first hinge 221 until the supplementary plate 230 sinks into the accommodating cavity. The first folding plate 241 and the second folding plate 242 are unfolded because the first hinge 221 and the third hinge 244 are away from each other until the first folding plate 241 and the second folding plate 242 are in the same substantially flat plane as the skin 100 to complement the aerodynamic surface of the skin 100 at the receiving window 101.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (13)

1. A vortex generator, comprising:

the device comprises a skin (100), wherein the skin (100) is provided with an outer pneumatic surface and an inner surface which are opposite to each other, the inner surface of the skin (100) is enclosed to form a containing cavity, and the skin (100) is provided with a containing window (101) communicated with the containing cavity;

the vortex generating assembly comprises a transmission part which is in transmission connection with the deformable part, and the transmission part is arranged in the accommodating cavity and is positioned near the accommodating window (101) so that at least part of the deformable part is exposed outwards through the accommodating window (101);

a driving assembly (300) in driving connection with the transmission part, the driving assembly (300) driving the deformable part to switch between at least a protruding state and a flattened state;

when the deformable part is in a protruding state, at least part of the deformable part protrudes outwards through the accommodating window (101) to form a vortex generating surface;

when the deformable portion is in the flat state, a portion of the deformable portion exposed in the accommodating window (101) closes the accommodating window (101) in a flush manner with the external aerodynamic surface, so that the skin (100) has a continuous external aerodynamic surface.

2. The vortex generator of claim 1 wherein the vortex generating assembly further comprises a supplement in driving connection with the drive section; wherein when the deformable portion is in a protruding state, the deformable portion is in a protruding state to form a notch (102) at the accommodating window (101); the drive assembly (300) drives the refill to fill the gap (102) such that the skin (100) has a continuous exterior aerodynamic surface;

when the deformable part is in the flat state, the supplementing part is accommodated in the accommodating cavity.

3. The vortex generator of claim 2 wherein the deformable portion comprises: a first folding plate (241) and a second folding plate (242); the first folding plate (241) and the second folding plate (242) are hinged through a second hinge (243);

the transmission part includes: a guide rail (210) and a bottom plate (220); the guide rail (210) is provided with a first chute (2111) parallel to the accommodating cavity, and the bottom plate (220) is in sliding connection with the first chute (2111); the driving assembly (300) is in transmission connection with the bottom plate (220);

wherein the first folding plate (241) is hinged with the bottom plate (220) through a first hinge (221); the first folding plate (241) and the second folding plate (242) which are mutually unfolded are arranged on the bottom plate (220) in a stacking way, and the first folding plate (241) and the second folding plate (242) which are mutually unfolded are in the same plane with the accommodating window (101);

the base plate (220) drives the first folding plate (241) and the second folding plate (242) to turn around the second hinge (243) in opposite directions through the first hinge (221), and the first folding plate (241) and the second folding plate (242) are folded to form a vortex workpiece (260) protruding out of the surface of the skin (100).

4. The vortex generator according to claim 3,

the guide rail (210) further comprises a second chute (2112), the extending direction of the second chute (2112) is obliquely arranged with the first chute (2111), and the extending direction of the second chute (2112) faces the accommodating window (101);

the refill includes a refill plate (230); the supplementing plate (230) is arranged on one side, far away from the first folding plate (241), of the first hinge (221), the supplementing plate (230) is hinged with the first folding plate (241) through the first hinge (221), and the supplementing plate (230) is in sliding connection with the second sliding groove (2112);

wherein, in the process that the bottom plate (220) drives the first folding plate (241) and the second folding plate (242) to turn over, the supplementing plate (230) turns over around the first hinge (221) until the supplementing plate (230) supplements a notch (102) formed at the accommodating window (101) after the first folding plate (241) and the second folding plate (242) turn over.

5. The vortex generator according to claim 4, characterized in that the supplementary plate (230) extends perpendicularly to the direction of extension of the second chute (2112) by a slider (231), the slider (231) being slidably arranged in the second chute (2112); the cross section of the sliding block (231) is circular.

6. The vortex generator of claim 4 wherein the vortex generator comprises a vortex generator,

the pair of guide rails (210) are symmetrically arranged in the accommodating cavity, the first sliding chute (2111) and the second sliding chute (2112) are arranged on opposite surfaces of the guide rails (210), and the first sliding chute (2111) and the second sliding chute (2112) are communicated;

the upper end face of the guide rail (210) is exposed from the accommodating window (101), the upper end face of the guide rail (210) and the skin (100) are in the same plane, and the bottom plate (220), the first folding plate (241), the second folding plate (242) and the supplementing plate (230) are arranged between the pair of guide rails (210).

7. A vortex generator according to claim 3, characterized in that the drive assembly (300) comprises a controller (310) and a drive member (320), the controller (310) being connected to the drive member (320) and controlling the operating state of the drive member (320), the end of the drive member (320) remote from the controller (310) being in driving connection with the base plate (220).

8. The vortex generator of claim 7 wherein the driver (320) is a memory alloy spring.

9. A vortex generator as claimed in claim 3 wherein the vortex generating assembly further comprises:

the base plate (250), the base plate (250) is filled one side of second folding plate (242) far away from first folding plate (241) holding window (101), base plate (250) with skin (100) are in the coplanar, base plate (250) is fixedly connected with skin (100), second folding plate (242) is articulated with base plate (250) through third hinge (244).

10. The vortex generator according to claim 9, characterized in that the projection of the base plate (250) at least partially overlaps the projection of the guide rail (210) in a direction perpendicular to the receiving window (101).

11. A vortex generator according to claim 3, characterised in that the first folding plate (241) and the second folding plate (242) which are mutually unfolded are in abutment with the bottom plate (220).

12. A vortex generator according to claim 3, characterised in that the vortex work piece (260) is perpendicular to the receiving window (101).

13. An aircraft comprising a vortex generator according to any one of claims 1 to 12, at least one of which is provided on at least one of a wing, elevator control surface, slat or flap of the aircraft.