An integrated anti-icing device and anti-icing method

Abstract

The present invention belongs to the field of anti-icing and de-icing, and specifically relates to an integrated anti-icing and de-icing device and method, which includes a mounting member, a vibration mechanism, and a de-icing mechanism. The mounting member is hollow inside and provided with a channel, and an opening communicating with the channel is provided on the mounting member. The vibration mechanism is arranged in the channel, and the vibration of the vibration mechanism generates a jet flowing out from the opening in the channel. The de-icing mechanism has a reciprocating movement stroke along the direction of the channel. One end of the de-icing mechanism is provided with a docking and separating mechanism for connecting or separating from the vibration mechanism, and the other end acts on the surface of the object to be de-iced. In the present invention, the channel, the opening, and the vibration mechanism can form a jet exciter, which can generate a jet at the opening for anti-icing. At the same time, the vibration mechanism is detachably matched with the de-icing mechanism. When connected, the vibration mechanism provides a driving force for vibration for the de-icing mechanism, and the de-icing mechanism impacts the ice layer on the surface of the object through high-frequency reciprocating vibration.

Description

Technical Field

[0001] The present invention belongs to the field of anti-icing and de-icing, and particularly relates to an integrated anti-icing and de-icing device and an anti-icing and de-icing method. Background Art

[0002] Icing refers to a phenomenon where water droplets freeze or water vapor condenses on the surface of an object, which widely appears on aircraft and wind turbine blades, and is also an important inducement for safety accidents of aircraft and wind turbine blades. Taking an aircraft as an example, icing can occur on the surfaces of the wings, fuselage, engine inlets, propellers, helicopter rotors, external sensors, etc. of the aircraft. Aircraft icing has a great impact on aircraft performance and flight safety. When icing occurs on the wings, the ice layer will cause consequences such as increased drag, decreased lift-to-drag ratio, reduced maximum stall angle of attack, and increased stall speed during flight, which will seriously reduce the flight performance of the aircraft; when icing occurs on the tail, it will seriously affect the controllability of the aircraft.

[0003] To cope with the icing risk, current aircraft often adopt means such as chemical liquid de-icing, mechanical de-icing, and electrothermal de-icing. Although the ice layer can be effectively removed to a certain extent, there are usually problems such as complex structure, large additional load, environmental pollution, damage to the skin, high energy consumption, and low efficiency. Therefore, a new method of anti-icing and de-icing using flow control technology has emerged, such as the synthetic jet method, to meet the requirements of lightweight and miniaturization. However, currently, the synthetic jet method is generally only limited to anti-icing and has little effect on de-icing in the case of existing ice. When de-icing is required, additional de-icing equipment needs to be equipped, which also increases the difficulty of overall lightweight and the complexity of the structure. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an integrated anti-icing and de-icing device and an anti-icing and de-icing method that can achieve selectable anti-icing and anti-icing and de-icing operations through a single power structure.

[0005] The present invention provides an integrated anti-icing and de-icing device, including a mounting member, a vibration mechanism, and a de-icing mechanism. The mounting member is internally hollow and provided with a channel, and an opening communicating with the channel is provided on the mounting member. The opening acts on the surface of the object to be anti-iced. The vibration mechanism is arranged in the channel, and the vibration of the vibration mechanism generates a jet flowing out from the opening in the channel. The de-icing mechanism has a reciprocating movement stroke along the channel direction. One end of the de-icing mechanism is provided with a docking and separating mechanism for connecting or separating from the vibration mechanism, and the other end acts on the surface of the object to be de-iced.

[0006] Furthermore, a sliding sleeve is arranged in the channel, the de-icing mechanism is slidably arranged in the sliding sleeve, and a limiting structure for limiting the sliding stroke is arranged on the de-icing mechanism.

[0007] Furthermore, the integrated anti-icing device also includes an elastic reset member that drives the deicing mechanism to always move toward the vibration mechanism.

[0008] Furthermore, the elastic reset member includes a spring positioning sleeve arranged in the channel, a spring limiting plate arranged on the deicing mechanism, and a spring sleeved on the deicing mechanism with two ends respectively abutting against the spring positioning sleeve and the spring limiting plate.

[0009] Furthermore, the docking and separation mechanism includes a power supply and a memory metal electrically connected to the power supply and arranged at the end of the de-icing mechanism. The power supply controls the memory metal to extend so that the vibration range of the vibration mechanism coincides with the moving stroke of the de-icing mechanism. The power supply controls the memory metal to shorten so that the vibration range of the vibration mechanism is separated from the moving stroke of the de-icing mechanism.

[0010] Furthermore, the vibration mechanism includes a power supply and a piezoelectric sheet electrically connected to each other, and the piezoelectric sheet is arranged in the mounting member and blocks the channel.

[0011] Furthermore, both ends of the channel are arranged toward the surface of the object to be de-iced, both ends of the mounting member are provided with the openings, and two groups of de-icing mechanisms are symmetrically arranged on both sides of the channel.

[0012] Furthermore, the channel includes a horizontal portion, an inclined portion and a vertical portion arranged at both ends of the horizontal portion, the vertical portion is connected to the horizontal portion through the inclined portion, the piezoelectric sheet is vertically arranged in the middle of the horizontal portion, and the de-icing mechanism includes a horizontal rod, a connecting rod and a vertical rod hinged in sequence, the horizontal rod is horizontally slidably arranged in the horizontal portion, and the vertical rod is vertically slidably arranged in the vertical portion.

[0013] The present invention also provides an anti-icing method using an integrated anti-icing device, including an anti-icing mode and an anti-icing mode: the anti-icing mode is:

[0014] The docking and separation mechanism separates the deicing mechanism and the vibration mechanism. The vibration mechanism generates high-frequency reciprocating vibrations, compresses the air in the channel, and the gas flows out of the channel to form a jet from the opening, which changes the trajectory of the liquid droplets on the surface of the object to be deiced, and de-ices the surface of the object to be deiced.

[0015] The anti-icing mode is:

[0016] The docking and separation mechanism connects the deicing mechanism and the vibration mechanism. The vibration mechanism generates high-frequency reciprocating vibrations to compress the air in the channel. The gas flows out of the channel at a high speed to form a jet from the opening, changing the trajectory of the incoming droplets on the surface of the object to be deiced, and anti-icing the surface of the object to be deiced. At the same time, the vibration mechanism drives the deicing mechanism to vibrate and impact with high frequency. The end of the deicing mechanism acts on the surface of the ice layer and resonates with the ice layer to destroy the ice layer for deicing.

[0017] The beneficial effects of the present invention are as follows: in the present invention, the channel, the opening and the vibration mechanism can form a jet actuator. The vibration mechanism vibrates in the channel, which can generate a jet at the opening. The jet acts on the surface of the object to be anti-iced, changes the trajectory of the oncoming liquid droplets at the surface of the object to be anti-iced, increases the difficulty of icing on the surface of the object to be anti-iced, and thus plays an anti-icing role. At the same time, the vibration mechanism is detachably cooperated with the de-icing mechanism, and the connection or separation of the de-icing mechanism and the vibration mechanism can be controlled. When separated, the vibration mechanism is only used to generate a jet, which can provide a relatively large jet intensity and improve the anti-icing effect; when connected, the vibration mechanism provides the driving force for the de-icing mechanism to vibrate. The de-icing mechanism impacts the ice layer on the object surface through high-frequency reciprocating vibration, and preferably resonates with the ice layer to damage the ice layer structure, and can also reduce the adhesion between the ice layer and the object surface to achieve de-icing of the ice layer.

[0018] By setting the docking and separating mechanism to control the connection or separation of the de-icing mechanism and the vibration mechanism, the present invention can realize two working modes: separate anti-icing and combined use of anti-icing and de-icing, and thus perform anti-icing and de-icing according to different anti-icing and de-icing requirements.

[0019] In addition, the opening and the de-icing mechanism in the present invention can act on the same position on the object surface, that is, the de-icing mechanism directly acts on the object surface through the opening. At this time, when the object surface is already iced, the de-icing mechanism and the jet can act together for de-icing, which can improve the de-icing effect. In addition, the opening and the de-icing mechanism can also act on different positions on the object surface. Preferably, the opening acts on the surface of the object with anti-icing requirements, such as the leading edge of the wing surface, and the de-icing mechanism acts on the surface of the object with de-icing requirements, such as the rear part and / or the trailing edge of the leading edge of the wing surface. Thus, various anti-icing and de-icing requirements can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 is a schematic structural diagram of the present invention;

[0021] Attached Figure 2 is a half-sectional view of the present invention;

[0022] Attached Figure 3 is a schematic structural diagram of the present invention after hiding partial mounting parts;

[0023] Attached Figure 4 is a front sectional view of the present invention in the static state of the piezoelectric sheet;

[0024] Attached Figure 5 is Figure 4 a sectional view taken along line A-A in

[0025] Attached Figure 6 is a front sectional view of the present invention in the state where the piezoelectric sheet vibrates to the right.

[0026] In the figure, 1 - mounting part; 11 - channel; 111 - horizontal part; 112 - inclined part; 113 - vertical part; 114 - sliding sleeve; 115 - connecting grille; 12 - opening; 2 - piezoelectric sheet; 3 - de-icing mechanism; 31 - horizontal rod; 32 - connecting rod; 33 - vertical rod; 34 - limiting structure; 5 - blade body; 51 - through hole; 6 - shape memory metal; 7 - elastic resetting member; 71 - spring positioning sleeve; 72 - spring limiting plate; 73 - spring. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, a physical connection or a wireless communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0032] As attached Figures 1-6 As shown, the present invention provides an integrated anti-icing device, including a mounting member 1, a vibration mechanism and a deicing mechanism 3. The mounting member 1 is hollow inside and has a channel 11. The mounting member 1 is provided with an opening 12 connected to the channel 11. The opening 12 acts on the surface of the object to be deiced. The vibration mechanism is arranged in the channel 11. The vibration of the vibration mechanism causes a jet to be generated in the channel 11 and ejected from the opening 12. The deicing mechanism 3 has a moving stroke that reciprocates along the direction of the channel 11. One end of the deicing mechanism 3 is provided with a docking and separation mechanism for connecting or separating with the vibration mechanism, and the other end acts on the surface of the object to be deiced.

[0033] In one embodiment, the de-icing mechanism 3 may be a straight rod disposed on the output end of a vibration mechanism, and the vibration mechanism drives the straight rod to vibrate, thereby applying the vibration to the surface of the object to be de-iced.

[0034] In the present invention, the channel 11, the opening 12 and the vibration mechanism can form a jet exciter. The vibration mechanism vibrates in the channel 11 and can generate a jet at the opening 12. The jet acts on the surface of the object to be de-iced, changes the trajectory of the incoming liquid droplets on the surface of the object to be de-iced, increases the difficulty of ice formation on the surface of the object to be de-iced, and thus plays an anti-icing role. At the same time, the vibration mechanism and the de-icing mechanism 3 are detachable and compatible, and the de-icing mechanism 3 can be controlled to be connected or separated from the vibration mechanism. When separated, the vibration mechanism is only used to generate a jet, which can provide a larger jet intensity and improve the anti-icing effect; when connected, the vibration mechanism provides a vibration driving force for the de-icing mechanism 3. The de-icing mechanism 3 acts on the ice layer on the surface of the object through high-frequency reciprocating vibration impact, and preferably resonates with the ice layer to destroy the ice layer structure, and can also reduce the fit between the ice layer and the surface of the object to achieve the removal of the ice layer.

[0035] The present invention controls the connection or separation of the deicing mechanism 3 and the vibration mechanism by setting a docking and separation mechanism. Specifically, the docking and separation mechanism is used to achieve the docking and separation of the horizontal rod 31 and the piezoelectric sheet 2. In a specific embodiment, the memory metal 6 is extended, and the vibration of the piezoelectric sheet 2 can drive the memory metal 6 to drive the horizontal rod 31 to move, so as to achieve the docking of the horizontal rod 31 and the piezoelectric sheet 2; the memory metal 6 is shortened, and the piezoelectric sheet 2 cannot vibrate and contact the memory metal 6, and cannot drive the horizontal rod 31 to move, so as to achieve the separation of the horizontal rod 31 and the piezoelectric sheet 2. Two working modes of single anti-icing and combined use of anti-icing and deicing can be realized, and then anti-icing and deicing can be performed according to different anti-icing and deicing requirements.

[0036] In addition, in the present invention, the opening 12 and the de-icing mechanism 3 can act on the same position on the object surface, that is, the de-icing mechanism 3 directly acts on the object surface through the opening 12. At this time, when the object surface is already frozen, the de-icing mechanism 3 and the jet can act on the ice layer together, which can improve the de-icing effect. In addition, the opening 12 and the de-icing mechanism 3 can also act on different positions on the object surface. Preferably, the opening 12 acts on the surface of the object with anti-icing requirements, such as the leading edge of the wing surface, and the de-icing mechanism 3 acts on the surface of the object with de-icing requirements, such as the rear part of the leading edge and / or the trailing edge of the wing surface, so as to meet various anti-icing and de-icing requirements.

[0037] In one embodiment, a sliding sleeve 114 is arranged in the channel 11, the de-icing mechanism 3 is slidably arranged in the sliding sleeve 114, and a limit structure 34 for restricting the sliding stroke is arranged on the de-icing mechanism 3, so that the movement of the de-icing mechanism 3 has a working limit stroke and a reset limit stroke. In this embodiment, the vibration mechanism is only used to push the de-icing mechanism 3 to move unidirectionally, and the reset of the de-icing mechanism 3 is assisted by gravity or other reset mechanisms. Specifically, during the vibration of the vibration mechanism, one of the amplitudes can push the de-icing mechanism 3 to slide to the working limit stroke, and the de-icing mechanism 3 acts on the ice layer surface. When the vibration mechanism resets or the amplitude in the other direction is disengaged from the de-icing mechanism 3, the de-icing mechanism 3 is reset to the reset limit stroke by gravity or other reset mechanisms, waiting for the vibration mechanism to push the de-icing mechanism 3 to move next time. In this embodiment, the vibration mechanism acts on the de-icing mechanism unidirectionally, which can improve the utilization rate of the vibration mechanism and ensure the de-icing effect.

[0038] The present invention further includes an elastic reset member 7 for driving the de-icing mechanism 3 to always move towards the vibration mechanism, which improves the reset speed of the de-icing mechanism 3, and thus ensures that the de-icing mechanism 3 can vibrate reciprocally at a high frequency. In a preferred embodiment, the elastic reset member 7 includes a spring positioning sleeve 71 arranged in the channel 11, a spring limit plate 72 arranged on the de-icing mechanism 3, and a spring 73 sleeved on the de-icing mechanism 3 and abutting against the spring positioning sleeve 71 and the spring limit plate 72 at both ends respectively. In addition, both the spring positioning sleeve 71 and the sliding sleeve 114 are fixedly connected to the mounting member 1 through a connecting grid 115, and through holes are arranged on the connecting grid 115 to avoid the flow of the jet in the channel 11.

[0039] In one embodiment, the docking and separation mechanism includes a power source and a shape memory alloy 6 electrically connected to the power source and disposed at the end of the de-icing mechanism 3. The power source controls the elongation of the shape memory alloy 6, so that the vibration range of the vibration mechanism coincides with the moving stroke of the de-icing mechanism 3. The power source controls the shortening of the shape memory alloy 6, so that the vibration range of the vibration mechanism is separated from the moving stroke of the de-icing mechanism 3. That is, after the shape memory alloy 6 elongates, the vibration of the vibration mechanism can push the de-icing mechanism 3 to move. When the shape memory alloy 6 shortens, the vibration of the vibration mechanism cannot contact the de-icing mechanism 3, realizing separation. In this embodiment, the docking and separation mechanism has a simple and reliable structure. The elongation, shortening and control of the shape memory alloy 6 can be achieved only by controlling the power source. Its control device can adopt the same power control mechanism as the vibration mechanism, making the control of this integrated de-icing and anti-icing device convenient and fast. The overall structure is small in size and can meet the lightweight requirements.

[0040] In one embodiment, the vibration mechanism includes a power source and a piezoelectric sheet 2 electrically connected to each other. The piezoelectric sheet 2 is disposed in the mounting member 1 and blocks the channel 11 for forming a jet actuator. The piezoelectric sheet 2 is preferably a ceramic piezoelectric sheet. The vibration amplitude and vibration frequency of the piezoelectric sheet 2 can be quickly adjusted by controlling the magnitude and frequency of the power source, so as to facilitate controlling the de-icing mechanism 3 to resonate with the ice layer. Moreover, the piezoelectric sheet 2 is light in weight and small in volume, which is convenient to meet the lightweight requirements. Its driving and control can be achieved only by controlling the power source, and the control is convenient and fast.

[0041] In one embodiment, both ends of the channel 11 are arranged facing the surface of the object to be de-iced. Openings 12 are arranged at both ends of the mounting member 1. Two groups of the de-icing mechanisms 3 are symmetrically arranged on both sides of the channel 11. This embodiment provides two implementation manners. In the first manner, the channel 11 is a straight cylinder structure, and both ends of the channel 11 are located on two sides of the wing surface. In the second manner, both ends of the channel 11 are bent, that is, the mounting member 1 and the channel 11 are integrally U-shaped, and both ends of the channel 11 are located on the same side of the wing surface. Since the size of this integrated de-icing and anti-icing device can be made very small, the second implementation manner is preferably adopted. The first manner is applicable to occasions where the object is very thin and there is a de-icing and anti-icing requirement on both sides of the object, such as the tip of the wing surface.

[0042] When the above two manners are adopted, jets can be formed by the vibrations on both sides of the piezoelectric sheet 2, and the vibrations in two directions of the piezoelectric sheet 2 can cooperate with the de-icing mechanism 3 for anti-icing, greatly improving the utilization rate of the piezoelectric sheet 2.

[0043] In addition, since the amplitudes and frequencies in two directions of the piezoelectric sheet 2 can be relatively independent, an integrated anti-icing device can provide jets with two different parameters and anti-icing vibrations with two different parameters. Furthermore, according to the temperature condition and icing characteristics of the object surface, by adjusting the arrangement position of the integrated anti-icing device and the driving parameters of the piezoelectric sheet, different intensities of de-icing and anti-icing can be achieved at different positions. For example, when the integrated anti-icing device is arranged on the wing surface, since the leading edge of the wing surface will first come into contact with the low-temperature air and the icing thickness is also thicker, one end of the channel 11 in this embodiment is arranged on the leading edge side of the wing surface, and the other end is arranged at the rear side of the leading edge of the wing surface. At this time, control the piezoelectric sheet 2 to vibrate with a large amplitude and high frequency toward the leading edge side of the channel 11 on the wing surface, blowing a relatively large jet and vibration to the leading edge of the wing surface, and control the piezoelectric sheet 2 to vibrate with a relatively smaller amplitude and relatively lower frequency toward the other side of the channel 11, so as to blow a relatively smaller jet and vibration to the rear part of the leading edge of the wing surface. At this time, because the jet at the leading edge of the wing surface affects the path of the oncoming liquid droplets, the jet at the rear opening 12 only needs to assist in changing the flow-around path, and the best anti-icing effect can be ensured on the premise of avoiding energy waste.

[0044] When the two ends of the channel 11 are bent, the channel 11 includes a horizontal portion 111, inclined portions 112 provided at both ends of the horizontal portion 111, and a vertical portion 113. The vertical portion 113 is connected to the horizontal portion 111 through the inclined portions 112. The piezoelectric sheet 2 is vertically arranged in the middle of the horizontal portion 111. In this embodiment, the de-icing mechanism 3 includes a horizontal rod 31, a connecting rod 32, and a vertical rod 33 that are sequentially hinged. The horizontal rod 31 is horizontally slidably arranged in the horizontal portion 111, and the vertical rod 33 is vertically slidably arranged in the vertical portion 113. When the piezoelectric sheet 2 drives the horizontal rod 31 to reciprocate left and right, the horizontal rod 31 drives the vertical rod 33 to reciprocate up and down through the connection of the connecting rod 32, so that the vertical rod 33 generates high-frequency reciprocating vibration impacts on the ice layer. In addition, the horizontal rod 31, the connecting rod 32, and the vertical rod 33 are hinged to each other in pairs, and the hinged manner is not limited to the conventional hinge connection, and can also be the flexible connection of the material to cope with the high-frequency reciprocating vibration impacts.

[0045] In this embodiment, sliding sleeves 114 are arranged in the vertical portion 113 and the horizontal portion 111. The vertical rod 33 is slidably matched with the sliding sleeve 114 arranged in the vertical portion 113, and the horizontal portion 111 is slidably matched with the sliding sleeve 114 arranged in the horizontal portion 111. The sliding sleeve 114 is connected to the inside of the channel 11 through a connecting grid 115. The connecting grid 115 has through holes, which not only ensures the sliding fit of the horizontal rod 31 and the vertical rod 33, but also does not affect the formation and flow of the jet.

[0046] The present invention also provides a blade, which can be a wing, a wind power blade, an aircraft propeller blade, a rudder surface or other objects with a similar cross-section. The surface shape of the object is usually composed of curved upper and lower surfaces and the leading edge and trailing edge of the airfoil. For example, the wings and rudder surfaces on an aircraft, the blades and propellers for wind power generation, etc. The blade of the present invention includes a blade body 5 and an integrated anti-icing and de-icing device. The integrated anti-icing and de-icing device is arranged in the cavity of the blade body 5. A through hole 51 communicating with the opening 12 is arranged on the surface of the blade body 5. The through hole 51 communicates with the opening 12, so that the jet formed by the vibration mechanism and the channel 11 can act on the surface of the blade through the through hole 51. The de-icing mechanism 3 can directly act on the inner wall of the ice layer through the opening 12 and the through hole 51, or can act on the skin of the blade. In addition, when the integrated anti-icing and de-icing device is arranged on the wing, it can be arranged in a rectangular array in the length and width directions of the wing to improve the anti-icing and de-icing effects.

[0047] The present invention also provides an anti-icing and de-icing method for the integrated anti-icing and de-icing device, including an anti-icing mode and an anti-icing and de-icing mode: The anti-icing mode is as follows:

[0048] The docking and separation mechanism separates the de-icing mechanism 3 and the vibration mechanism. The vibration mechanism works to generate high-frequency reciprocating vibrations, compressing the air in the channel 11. The gas flows out of the channel 11 and forms a jet from the opening 12, changing the droplet trajectory on the surface of the object to be anti-iced, and performing anti-icing on the surface of the object to be anti-iced.

[0049] The anti-icing and de-icing mode is as follows:

[0050] The docking and separation mechanism connects the de-icing mechanism 3 and the vibration mechanism. The vibration mechanism works to generate high-frequency reciprocating vibrations, compressing the air in the channel 11. The gas flows out of the channel 11 and forms a jet from the opening 12, changing the oncoming droplet trajectory on the surface of the object to be de-iced, and performing anti-icing on the surface of the object to be de-iced. In addition, the jet can also assist in de-icing. At the same time, the vibration mechanism drives the de-icing mechanism 3 to perform high-frequency reciprocating vibrations and impacts. The end of the de-icing mechanism 3 acts on the surface of the ice layer and resonates with the ice layer to break the ice layer for de-icing.

[0051] The content not detailed in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. An integrated anti-icing device, characterized in that, It includes a mounting member (1), a vibration mechanism, and a de-icing mechanism (3). The mounting member (1) is hollow inside and provided with a channel (11). An opening (12) communicating with the channel (11) is provided on the mounting member (1). The opening (12) acts on the surface of the object to be anti-iced. The vibration mechanism is arranged in the channel (11). The vibration of the vibration mechanism generates a jet flowing out from the opening (12) in the channel (11). The de-icing mechanism (3) has a reciprocating movement stroke along the direction of the channel (11). One end of the de-icing mechanism (3) is provided with a docking and separating mechanism for connecting or separating from the vibration mechanism, and the other end acts on the surface of the object to be de-iced.

2. The integrated anti-icing device according to claim 1, characterized in that, A sliding sleeve (114) is arranged in the channel (11). The de-icing mechanism (3) is slidably arranged in the sliding sleeve (114). A limiting structure (34) for limiting the sliding stroke is arranged on the de-icing mechanism (3).

3. The integrated anti-icing device according to claim 2, characterized in that, It further includes an elastic resetting member (7) that drives the de-icing mechanism (3) to always move towards the vibration mechanism.

4. The integrated anti-icing device according to claim 3, wherein, The elastic resetting member (7) includes a spring positioning sleeve (71) arranged in the channel (11), a spring limiting plate (72) arranged on the de-icing mechanism (3), and a spring (73) sleeved on the de-icing mechanism (3) and abutting against the spring positioning sleeve (71) and the spring limiting plate (72) at both ends respectively.

5. The integrated anti-icing device according to any one of claims 1-4, characterized in that, The docking and separating mechanism includes a power source and a shape memory alloy (6) that is electrically connected to the power source and arranged at the end of the de-icing mechanism (3). The power source controls the shape memory alloy (6) to elongate, so that the vibration range of the vibration mechanism coincides with the movement stroke of the de-icing mechanism (3). The power source controls the shape memory alloy (6) to shorten, so that the vibration range of the vibration mechanism is separated from the movement stroke of the de-icing mechanism (3).

6. The integrated anti-icing device according to any one of claims 1-4, characterized in that, The vibration mechanism includes a power source and a piezoelectric sheet (2) that are electrically connected to each other. The piezoelectric sheet (2) is arranged in the mounting member (1) and blocks the channel (11).

7. The integrated anti-icing device according to claim 6, characterized in that, Both ends of the channel (11) are arranged towards the surface of the object to be de-iced. Openings (12) are arranged at both ends of the mounting member (1). Two groups of de-icing mechanisms (3) are symmetrically arranged on both sides of the channel (11).

8. The integrated anti-icing device according to claim 7, characterized in that, The channel (11) includes a horizontal portion (111), inclined portions (112) and vertical portions (113) arranged at both ends of the horizontal portion (111). The vertical portions (113) are connected to the horizontal portion (111) through the inclined portions (112). The piezoelectric sheet (2) is vertically arranged in the middle of the horizontal portion (111). The de-icing mechanism (3) includes a horizontal rod (31), a connecting rod (32) and a vertical rod (33) that are sequentially hinged. The horizontal rod (31) is horizontally slidably arranged in the horizontal portion (111), and the vertical rod (33) is vertically slidably arranged in the vertical portion (113).

9. An anti-icing method using the integrated anti-icing device according to any one of claims 1-8, characterized in that, It includes an anti-icing mode and an anti-de-icing mode. The anti-icing mode is as follows: The docking and separating mechanism separates the de-icing mechanism (3) and the vibration mechanism. The vibration mechanism works to generate high-frequency reciprocating vibrations, compressing the air in the channel (11). The gas flows out of the channel (11) to form a jet from the opening (12), changing the droplet trajectory on the surface of the object to be anti-iced, and performing anti-icing on the surface of the object to be anti-iced. The anti-icing mode is as follows: The docking and separation mechanism connects the de-icing mechanism (3) and the vibration mechanism. The vibration mechanism operates to generate high-frequency reciprocating vibrations, compressing the air in the compression channel (11). The gas flows out of the channel (11) and forms a jet at the opening (12), changing the trajectory of the oncoming liquid droplets on the surface of the object to be de-iced, thereby preventing ice formation on the surface of the object to be de-iced. At the same time, the vibration mechanism drives the de-icing mechanism (3) to impact with high-frequency reciprocating vibrations. The end of the de-icing mechanism (3) acts on the ice layer surface and generates resonance with the ice layer to break the ice layer for de-icing.

Images