A vibration deicing device

Abstract

The present invention relates to the field of wind power generation technology, in particular to a vibration deicing device, comprising a fan blade, and also comprising a deicing mechanism, which includes an electromagnetic coil mounted on the trailing edge of the fan blade, and a skin covering the electromagnetic coil; a control mechanism, which includes a bracket mounted on the surface of the skin, and a vibrating piece and an electrode rod mounted on the bracket, the electromagnetic coil is arranged at the edge of the skin, and the distance between the skin and the fan blade is 1 to 2 cm, the skin is made of aluminum alloy, and the edge of the skin is provided with an arc edge, the arc edge is in contact with the trailing edge of the fan blade, foam is provided between the fan blade and the skin, the electromagnetic coil is distributed on both sides of the trailing edge of the fan blade, and a plurality of electromagnetic coils are arranged at equal intervals along the trailing edge of the fan blade, the bracket is arranged in a T-shape, and the bracket is provided with a first slot perpendicular to one side of the skin, and the vibrating piece is socketed with the first slot.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, in particular to a vibration deicing device. Background Art

[0002] Southern China, with its abundant wind resources, is located in high-altitude mountainous areas and near lakes. Winters in the south are characterized by low temperatures and high humidity, with frequent freezing weather. Ice accumulation on wind turbine blades significantly impacts the safe and stable operation of wind turbines. In these regions, ice accumulation can severely affect the blades' aerodynamic profile. Uneven ice distribution on blades can cause unbalanced loads, resulting in additional loads and vibration on the wind turbine, reducing the service life of the blades and turbine, leading to turbine failure, and impacting wind farm power generation. Operating wind turbines with ice on blades can reduce power generation by 10%-20%, increase wind farm operation and maintenance costs, and even cause partial damage or collapse of wind towers. Furthermore, blade ice throws pose a significant safety hazard to personnel. Therefore, ice accumulation on wind turbine blades has become a significant constraint on the development and construction of wind turbines in icing-prone regions.

[0003] For a long time, both domestic and foreign researchers have paid great attention to and attached great importance to the research on anti-icing and de-icing of wind turbine blades. Various anti-icing and de-icing technologies have been adopted in engineering projects. The current main research and applications are concentrated on super-hydrophobic coatings and thermal de-icing and anti-icing.

[0004] Superhydrophobic coatings use superhydrophobic materials applied to the blade surface to prevent ice from covering it. Anti-icing is simple and convenient, but its anti-icing effect and aging resistance are poor, making it difficult to implement in engineering applications. Another widely used method is thermal de-icing. One solution uses electric heating generated by the wind turbine itself to prevent and de-ice. However, the melted water in this de-icing process may refreeze when it flows to the unheated low-temperature surface, forming a large amount of ice around the heated area. Another solution uses hot air to form a high-temperature layer on the blade surface to achieve anti-icing and de-icing. However, this requires a high power supply and is difficult to achieve de-icing of blade areas far from the wind turbine tower.

[0005] In recent years, some domestic research institutions have improved and developed the electric pulse de-icing system. This solution was first used for de-icing aircraft wings. The principle is that when the aircraft needs to be de-iced, the control system will send a control signal to the switch to connect the discharge circuit. The capacitor discharges to the pulse coil through the switch, forming a rapidly changing magnetic field. The magnetic field that changes with time will induce eddy currents on the metal skin, thereby generating hundreds of pounds of instantaneous pulse force. However, the pulse duration is short, and the skin vibrates under the action of this pulse force, which can separate the ice layer from the skin, thereby achieving the purpose of de-icing.

[0006] However, wind turbine blades are different from airplane wings. When applying electric pulse de-icing technology to them, the first problem encountered is that the main material of the blades is an insulating and corrosion-resistant fiberglass composite material, which cannot interact with the alternating magnetic field generated by the electromagnetic coil. Secondly, unlike airplanes, which have a short flight time and require ground maintenance every time they land, the blades of wind turbines are in a high-altitude and low-temperature environment all year round. How to effectively detect the icing status of the blades has also become a problem. Although existing sensors can detect icing through capacitive and inductive sensors, the cost of covering a large area of the blade surface is extremely high. Therefore, in order to solve the above problems, we proposed a vibration de-icing device to solve the above problems. Summary of the Invention

[0007] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0008] The present invention is proposed in view of the problem that the blades of wind turbines mentioned above or in the prior art are mainly made of insulating fiberglass composite materials, which cannot interact with the alternating magnetic field generated by the electromagnetic coil, making it difficult to use electric pulse de-icing technology, and the problem that the existing ice detection sensors are expensive to cover a large area of wind turbine blades.

[0009] Therefore, an object of the present invention is to provide a vibrating de-icing device.

[0010] In order to solve the above technical problems, the present invention provides the following technical solutions: a vibration deicing device, including a fan blade, and also including a deicing mechanism, which includes an electromagnetic coil mounted on the trailing edge of the fan blade, and a skin covering the electromagnetic coil; a control mechanism, which includes a bracket installed on the surface of the skin, and a vibrating piece and an electrode rod installed on the bracket.

[0011] As a preferred embodiment of the vibration de-icing device of the present invention, the electromagnetic coil is arranged at the edge of the skin, and the distance between the skin and the fan blade is 1 to 2 cm. The skin is made of aluminum alloy, and the edge of the skin is provided with an arc edge, and the arc edge is in contact with the trailing edge of the fan blade. Foam is provided between the fan blade and the skin.

[0012] As a preferred solution of the vibration deicing device of the present invention, the electromagnetic coils are distributed on both sides of the trailing edge of the fan blade, and multiple electromagnetic coils are arranged at equal intervals along the trailing edge of the fan blade.

[0013] As a preferred solution of the vibration de-icing device of the present invention, wherein: the bracket is arranged in a T shape, and the bracket is provided with a first slot perpendicular to one side of the skin, and the vibration plate is socketed with the first slot, the two ends of the vibration plate are arranged in a V shape and a Y shape respectively, and the Y-shaped end of the vibration plate is fixedly clamped with the bracket, and a support plate is provided in the V-shaped clamping groove of the vibration plate, and the two ends of the support plate are clamped with the vibration plate.

[0014] As a preferred solution of the vibration deicing device of the present invention, a second notch is provided in the middle of the vibration plate, and the second notch is arranged in a trapezoidal shape.

[0015] As a preferred solution of the vibration deicing device of the present invention, wherein: both ends of the electrode rod are provided with adapter blocks, the electrode rod is sleeved in the V-shaped clamping groove of the vibration plate, and the adapter block is connected to the bracket, and the top end of the electrode rod leads out a wire.

[0016] As a preferred solution of the vibration deicing device of the present invention, it further comprises a switch mechanism, which includes a windward plate installed on the bracket and a clamping member installed between the vibration plate and the windward plate.

[0017] As a preferred solution of the vibration de-icing device of the present invention, one end of the windward plate is hinged to the bracket, and a third slot is provided at the connecting end of the windward plate, and side strips are bent on both sides of the windward plate, and paddles are bent on both sides of the third slot of the windward plate, and the bending direction of the paddles is opposite to that of the side strips.

[0018] As a preferred solution of the vibration deicing device of the present invention, the clamping member is arranged in a square frame shape, and the clamping member is hinged to the bracket, and a torsion spring is arranged between the clamping member and the bracket.

[0019] As a preferred solution of the vibration deicing device of the present invention, the paddle is provided with an inclined surface, and the inclined surface is in sliding contact with the clamping part, the paddle is located on the inclined surface and is concavely provided with a slot, and the slot is matched and clamped with the edge strip of the clamping part.

[0020] The beneficial effects of the vibration de-icing device of the present invention are as follows: the device can effectively protect the fan blades by covering the blade surface with a skin, preventing the ice layer from directly covering the blade surface, and realizes powerful electric pulse de-icing through the interaction between the skin and the electromagnetic field of the electromagnetic coil, as well as continuous auxiliary de-icing by the flow heat of the skin. At the same time, the device arranges multiple vibration plates on the skin surface along the direction of the fan blade ribs, which not only realizes the detection of the blade rotation speed, but also realizes the continuous identification of the entire process of the fan blade icing, helping the de-icing background system or staff to accurately judge the timing of electric pulse de-icing, and has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 This is a schematic diagram of the assembly structure of the vibration deicing device and the fan blades.

[0023] Figure 2 For vibration de-icing device Figure 1 Schematic diagram of the structure from other perspectives.

[0024] Figure 3 This is a schematic diagram of the structure of a single control mechanism of a vibration de-icing device in the deactivated state.

[0025] Figure 4 This is a schematic diagram of the structure of a single control mechanism of the vibration de-icing device in the activated state.

[0026] Figure 5 For vibration de-icing device Figure 4 Schematic diagram of the local structure.

[0027] Figure 6 Schematic diagram of the structure of the electrode rod of the vibration deicing device.

[0028] Figure 7 This is an exploded view of the structure of the vibration plate of the vibration de-icing device.

[0029] Figure 8 This is a schematic diagram of the structure of the windward plate of the vibration de-icing device.

[0030] Figure 9 This is a schematic diagram of the structure of the clamping parts of the vibration deicing device. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0034] Example 1, reference Figures 1 and 2 , which is the first embodiment of the present invention, provides a vibration deicing device that can achieve the effect of peeling off ice on the surface of the fan blade 400. The device includes a deicing mechanism 100, which includes an electromagnetic coil 101 attached to the trailing edge of the fan blade 400, and a skin 102 covering the electromagnetic coil 101. By applying a pulse current to the electromagnetic coil 101 and also to the skin 102, the skin 102 vibrates and generates heat under the interaction of the electromagnetic field eddy currents formed by the two pulse currents, thereby achieving the purpose of deicing the surface of the fan blade 400.

[0035] Specifically, the electromagnetic coil 101 is arranged at the edge of the skin 102, and the distance between the skin 102 and the fan blade 400 is 1 to 2 cm (reference value). The skin 102 is made of aluminum alloy, and the edge of the skin 102 is provided with an arc edge 102a, and the arc edge 102a is in contact with the trailing edge of the fan blade 400. A foam 103 is provided between the fan blade 400 and the skin 102, and the aluminum skin 102 is bonded by the foam 103, which does not interfere with the skin 102. Vibration de-icing is performed and at the same time, it also has a heat preservation effect, which reduces the erosion of low temperature on the internal fan blades 400, blocks the icing phenomenon outside the skin 102, and connects the skin 102 through foam 103, so that the fan blades 400 and the skin 102 can be installed without damage. The arc edge 102a of the edge of the skin 102 is in close contact with the trailing edge of the fan blade 400, reducing the invasion of icing into the connection between the skin 102 and the fan blade 400.

[0036] Furthermore, the electromagnetic coils 101 are distributed on both sides of the trailing edge of the fan blade 400, and multiple electromagnetic coils 101 are arranged at equal intervals along the trailing edge of the fan blade 400. The two groups of electromagnetic coils 101 on both sides of the fan blade 400 work simultaneously to synchronously de-ice both sides of the fan blade 400.

[0037] During use, at the beginning of the icing process, an alternating current of the same phase is passed through the electromagnetic coil 101 and the aluminum skin 102 for a long time. The electromagnetic field generated by the current can cause the skin 102 and the electromagnetic coil 101 to attract each other, pulling the edge of the skin 102 tightly against the coil and the surface of the fan blade 400, thereby reducing the possibility of ice forming between the electromagnetic coil 101, the fan blade 400 and the skin 102.

[0038] After the ice layer covers the edge of the skin 102, de-icing begins (for how to identify the ice layer coverage, refer to Example 2). Pulse current is input to all electromagnetic coils 101. By inputting a pulse current with a peak value of about 1000A (reference value) to the electromagnetic coils 101 for a maximum of 15 seconds (reference value), reverse pulse currents are input on both sides of the skin 102. The electromagnetic field repulsion force formed between the skin 102 and the electromagnetic coils 101 assists the electromagnetic eddy currents in achieving a stronger magnetic field force, thereby achieving more powerful vibration de-icing. During the de-icing process, the edge of the skin 102 repeatedly rises and falls, causing the ice layer covering the skin 102 to be pried, peeled off, and finally fall off.

[0039] After the de-icing process is completed, the electromagnetic coil 101 and the aluminum skin 102 are again energized with alternating current of the same phase for a long time. The electromagnetic field generated by the current can create a mutual attraction between the skin 102 and the electromagnetic coil 101, pulling the edge of the skin 102 tightly against the coil and the surface of the fan blade 400, thereby preventing the edge of the aluminum skin 102 from warping and being unable to self-recover, thereby forming a gap. The self-recovery process generally lasts for 2.5 minutes (reference value). Since this process is carried out after de-icing, it can achieve self-recovery. At the same time, the skin 102 will generate heat due to the current, which helps to melt and fall off the residual ice on the surface. After a period of continuous force, a small reverse force is applied to the metal to help it recover from metal fatigue.

[0040] In summary, the device can effectively protect the wind blade 400 by covering the blade surface with a skin 102, preventing the ice layer from directly covering the surface of the wind blade 400, and realize strong electric pulse deicing through the interaction between the skin 102 and the electromagnetic field of the electromagnetic coil 101, as well as continuous auxiliary deicing by the flow and heat of the skin 102.

[0041] Example 2, reference Figures 3 to 7 , which is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a control mechanism 200 for a vibration de-icing device, which solves the problem of high cost of large-scale coverage of wind turbine blades by existing ice detection sensors. The control mechanism 200 includes a bracket 201 mounted on the surface of the skin 102, and a vibration piece 202 and an electrode rod 203 mounted on the bracket 201. The bracket 201 is T-shaped, and a first notch 201a is provided on one side of the bracket 201 perpendicular to the skin 102. The vibration piece 202 is sleeved with the first notch 201a. The two ends of the vibration piece 202 are respectively V-shaped and Y-shaped. The Y-shaped end of the vibration piece 202 is fixedly clamped to the bracket 201. A support piece 204 is provided in the V-shaped clamping groove of the vibration piece 202, and the two ends of the support piece 204 are clamped to the vibration piece 202.

[0042] The device uses the high-speed airflow flowing through the surface of the fan blade 400 when it rotates to drive the vibration piece 202 to swing left and right, so that the vibration piece 202 contacts the electrode rod 203 at a certain frequency. The higher the speed of the fan blade 400, the greater the vibration frequency of the vibration piece 202. The vibration piece 202 and the electrode rod 203 are regarded as a series circuit. When the vibration piece 202 and the electrode rod 203 contact, the circuit is connected and a high-level electrical signal is generated. When the vibration piece 202 leaves the electrode rod 203, the circuit is disconnected and a low-level signal with a voltage of 0 is generated. By detecting the frequency of the signal, the speed of the fan blade 400 can be judged. Secondly, It is possible to determine whether the surface of the fan blade 400 is covered with ice. When a vibration piece 202 at a certain location continuously generates a single high signal or a single low signal, it means that the position of the fan blade 400 where the vibration piece 202 is located is already covered with ice. By arranging multiple vibration pieces 202 along the rib direction of the fan blade 400 (actually the skin 102), the entire icing process can be continuously detected (icing starts from the leading edge of the fan blade 400 facing the wind and gradually covers the trailing edge). Therefore, when it is detected that the ice has reached the trailing edge of the fan blade 400, pulse de-icing can be started automatically or manually.

[0043] Specifically, a second slot 202a is provided in the middle of the vibration piece 202, and the second slot 202a is arranged in a trapezoidal shape. The second slot 202a is narrower at the root of the vibration piece 202 and wider at the end of the vibration piece 202. This is to facilitate the vibration piece 202 to be easier to start (it can also effectively produce regular swinging under the action of a smaller airflow). At the same time, the bracket 201 for installing the vibration piece 202 also has a function equivalent to the wing blade on the wing of an airplane, which can make the airflow flowing through the surface of the fan blade 400 tend to be stable, which helps to maintain the normal operation of the vibration piece 202.

[0044] Furthermore, adapter blocks 205 are provided at both ends of the electrode rod 203. The electrode rod 203 is sleeved in the V-shaped clamping groove of the vibration plate 202, and the adapter block 205 is connected to the bracket 201. The top of the electrode rod 203 leads to a wire 203a, and the adapter block 205 and the bracket 201 are insulated.

[0045] The rest of the structure is the same as that of Example 1.

[0046] It should be noted here that how the vibration piece 202 generates regular vibrations. When air flows into the two sides of the V-shape at the end of the vibration piece 202, due to the difference in airflow on both sides of the vibration piece 202 and the flow errors caused by the shape and angle (or even manufacturing errors) on both sides of the V-shape of the vibration piece 202, the airflow resistance on one side of the vibration piece 202 will be higher than that on the other side. The resistance difference will cause the vibration piece 202 to swing toward the side with less resistance. After the swing occurs, the windward projection area on one side of the vibration piece 202 will increase sharply and the other side will decrease sharply, thereby causing the resistance on the side with less airflow resistance to increase sharply, causing the vibration piece 202 to swing to the other side. Similarly, the process is repeated, causing the vibration piece 202 to enter a stable left and right swinging state. The role of the support piece 204 is to support the V-shaped structure to prevent its angle from decreasing under wind resistance, causing the vibration piece 202 to fail.

[0047] In summary, the device arranges multiple vibration plates 202 on the surface of the skin 102 along the rib direction of the fan blade 400, thereby not only detecting the blade rotation speed, but also continuously identifying the entire process of ice covering of the fan blade 400, helping the de-icing background system or staff to accurately judge the timing of electric pulse de-icing, and has a simple structure and low cost.

[0048] Example 3, reference Figures 3 to 9 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a switch mechanism 300 of the vibration de-icing device, which solves the problem that when the fan blades 400 are stopped, the control mechanism 200 triggers a false ice coating signal due to the deformation of the vibration plate 202. It includes a windward plate 301 installed on the bracket 201, and a clamping member 302 installed between the vibration plate 202 and the windward plate 301. One end of the windward plate 301 is hinged to the bracket 201, and the windward plate 301 is provided with a third notch 301a at the connection end, and the windward plate 301 is provided with side strips 301b on both sides of the windward plate 301. The windward plate 301 is provided with paddles 301c on both sides of the third notch 301a, and the paddles 301c are bent in the opposite direction to the side strips 301b. 301c is provided with an inclined surface, and the inclined surface is in sliding contact with the clamping part 302. The paddle 301c is located on the inclined surface and is concave with a slot, and the slot is matched and clamped with the edge strip 301b of the clamping part 302. The mechanism relies entirely on the airflow flowing through the fan blade 400 to achieve opening and closing. It is used to maintain the neutral position of the vibration plate 202 when the fan blade 400 is shut down, so that all the vibration plates 202 are in a low signal state. If a vibration plate 202 still generates a high signal when it is shut down, it means that the vibration plate 202 or the component connected to it is faulty (for example, whether the vibration plate 202 is severely deformed or whether the electrode rod 203 is displaced) and needs maintenance. This is the greatest significance of the existence of this mechanism, which helps technicians to quickly and easily determine whether there are faults among the large number of vibration plates 202 on the blade.

[0049] Specifically, the clamping member 302 is arranged in a square shape, and the clamping member 302 is hinged to the bracket 201. A torsion spring 303 is arranged between the clamping member 302 and the bracket 201. When the wind turbine blade 400 stops, the torsion spring 303 enables the clamping member 302 to clamp both sides of the vibration plate 202 to prevent the vibration plate 202 from deforming and causing a false icing signal.

[0050] The rest of the structure is the same as that of Example 2.

[0051] When in use, the purpose of the edge strips 301b on both sides of the windward plate 301 is to prevent the windward plate 301 from fitting against the side of the bracket 201, thereby ensuring that the windward plate 301 can be smoothly unfolded when it needs to be unfolded. When the windward plate 301 is pushed to unfold under the action of the airflow, the inclined surface of the paddle 301c on the other side of the windward plate 301 will squeeze the clamping part 302 to unfold it and release the vibration plate 202. At this time, the airflow flows to the vibration plate 202 through the third slot 301a at the root of the windward plate 301, and the vibration plate 202 starts to work.

[0052] In summary, the device effectively helps technicians to quickly and easily determine whether a large number of vibration pieces 202 on a blade are faulty, thereby reducing the difficulty of equipment maintenance.

[0053] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0054] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (i.e., those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0055] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A vibration deicing device, comprising a fan blade (400), characterized in that: Also includes, A deicing mechanism (100) comprises an electromagnetic coil (101) mounted on the trailing edge of a fan blade (400), and a skin (102) covering the electromagnetic coil (101); A control mechanism (200) comprising a bracket (201) mounted on the surface of the skin (102), and a vibration piece (202) and an electrode rod (203) mounted on the bracket (201); The electromagnetic coil (101) is arranged at the edge of the skin (102), and the distance between the skin (102) and the fan blade (400) is 1 to 2 cm. The skin (102) is made of aluminum alloy, and the edge of the skin (102) is provided with an arc edge (102a), and the arc edge (102a) is in contact with the trailing edge of the fan blade (400). Foam (103) is provided between the fan blade (400) and the skin (102); The bracket (201) is arranged in a T-shape, and a first notch (201a) is provided on one side of the bracket (201) perpendicular to the skin (102), and the vibration piece (202) is sleeved with the first notch (201a), and the two ends of the vibration piece (202) are arranged in a V-shape and a Y-shape respectively, and the Y-shaped end of the vibration piece (202) is fixedly clamped with the bracket (201), and a support piece (204) is provided in the V-shaped clamping groove of the vibration piece (202), and the two ends of the support piece (204) are clamped with the vibration piece (202); A second notch (202a) is provided in the middle of the vibration plate (202), and the second notch (202a) is arranged in a trapezoidal shape; Both ends of the electrode rod (203) are provided with an adapter block (205), the electrode rod (203) is sleeved in the V-shaped clamping groove of the vibration plate (202), and the adapter block (205) is connected to the bracket (201), and a wire (203a) is led out from the top end of the electrode rod (203).

2. The vibration deicing device according to claim 1, characterized in that: The electromagnetic coils (101) are distributed on both sides of the trailing edge of the fan blade (400), and a plurality of the electromagnetic coils (101) are arranged at equal intervals along the trailing edge of the fan blade (400).

3. The vibration deicing device according to claim 2, characterized in that: Also includes, The switch mechanism (300) comprises a windward plate (301) mounted on the bracket (201), and a clamping member (302) mounted between the vibration plate (202) and the windward plate (301).

4. The vibration deicing device according to claim 3, characterized in that: One end of the windward plate (301) is hinged to the bracket (201), and the windward plate (301) is provided with a third notch (301a) at the connection end, and side strips (301b) are bent on both sides of the windward plate (301), and the windward plate (301) is provided with paddles (301c) bent on both sides of the third notch (301a), and the paddles (301c) are bent in opposite directions to the side strips (301b).

5. The vibration deicing device according to claim 4, characterized in that: The clamping member (302) is arranged in a square frame shape, and the clamping member (302) is hinged to the bracket (201). A torsion spring (303) is arranged between the clamping member (302) and the bracket (201).

6. The vibration deicing device according to claim 5, characterized in that: The paddle (301c) is provided with an inclined surface, and the inclined surface is in sliding contact with the clamping member (302); the paddle (301c) is provided with a recessed slot located in the inclined surface, and the recess is matched and latched with the side strip (301b) of the clamping member (302).

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