An electromagnetic wind-induced vibration energy harvesting device

Abstract

The present invention discloses an electromagnetic wind-induced vibration energy harvesting device, comprising: a main frame, an elastic vibration beam, a coil, a permanent magnet, a current-blocking vibrator, and an amplitude limiting assembly; one end of the elastic vibration beam is fixed to the main frame, and the other end is fixed to the current-blocking vibrator; wherein the plane where the elastic vibration beam is located is arranged along the vertical direction, and the length direction of the current-blocking vibrator is arranged along the vertical direction; the coil is fixed to the main frame, and the permanent magnet is fixed to the end of the current-blocking vibrator, and the coil and the permanent magnet are opposite to each other but not in contact; two amplitude limiting assemblies are respectively mounted on the main frame and located on both sides of the current-blocking vibrator, and are used to limit the amplitude of the current-blocking vibrator when the current-blocking vibrator undergoes a periodic reciprocating motion. The present invention can solve the problems of large internal impedance (megaohm level), low energy conversion efficiency, and low output power of piezoelectric wind-induced vibration energy harvesting structures.

Description

Technical Field

[0001] The present invention belongs to the field of electrical technology, and in particular relates to an electromagnetic wind-induced galloping vibration energy harvesting device. Background Art

[0002] With the rapid development of modern information technology, the demand for information and its timeliness are increasing. To meet this demand, wireless sensor networks are becoming increasingly widespread. This raises the question of how to effectively and stably power these wireless sensor networks over the long term. Traditional chemical batteries, due to their limited storage capacity and limited lifespan, require regular replacement, making them unable to meet today's "set and forget" demands. A common solution to this problem is to harvest and utilize energy from the environment through various energy conversion methods. Wind energy, as one of the most widely distributed energy sources in nature, has garnered significant attention from scholars both domestically and internationally.

[0003] To collect and utilize wind energy, scholars at home and abroad have proposed many design schemes and research methods. Among them, wind-induced galloping, as one of the most important types of wind-induced vibration, has been extensively studied both at home and abroad. For example, invention patent CN104113232B describes a wind-induced vibration piezoelectric generator. The scheme adopted is a piezoelectric structure in which a piezoelectric plate is fixed on a vibration beam. The bluff body vibrates under the action of wind force. At the same time, under the action of magnets, both the inner and outer beams vibrate, causing the piezoelectric plate fixed on the vibration beam to deform and output electrical energy. The internal impedance of the piezoelectric material in this scheme is very large, generally in the megohm level. Although its output voltage is large, its output power is small.

[0004] In their paper "Harvest Wind Energy from a Vibro-Impact DEGembedded into a Bluff Body," ZHLai et al. proposed a design that places a rigid mass ball within a bluff body. The rigid mass rolls sideways with the bluff body's motion and strikes dielectric elastomers at either end, causing them to deform and generate electrical energy. Experimental data indicates that the structure is relatively large overall, with the cantilever beam alone reaching 200 mm in length.

[0005] Therefore, in the existing technical research on galloping energy harvesting, the piezoelectric wind-induced vibration energy harvesting structure has the problems of large internal impedance (megaohm level), low energy conversion efficiency and low output power. Summary of the Invention

[0006] In view of this, the present invention provides an electromagnetic wind-induced vibration energy harvesting device, which can solve the problems of large internal impedance (megaohm level), low energy conversion efficiency and low output power of piezoelectric wind-induced vibration energy harvesting structure.

[0007] The present invention is achieved through the following technical solutions:

[0008] An electromagnetic wind-induced galloping vibration energy harvesting device comprises: a main frame, an elastic vibration beam, a coil, a permanent magnet, a current-blocking vibrator and an amplitude limiting component;

[0009] One end of the elastic vibration beam is fixed to the main frame, and the other end is fixed to the flow-blocking vibrator; wherein the plane where the elastic vibration beam is located is arranged along the vertical direction, and the length direction of the flow-blocking vibrator is arranged along the vertical direction;

[0010] The coil is fixed on the main frame, and the permanent magnet is fixed on the end of the choke vibrator, and the coil and the permanent magnet are opposite to each other but not in contact;

[0011] Two limiting components are respectively installed on the main frame and located on both sides of the choke vibrator, and are used to limit the amplitude of the choke vibrator when the choke vibrator undergoes left-right reciprocating periodic motion.

[0012] Furthermore, the limiter assembly includes: a limit adjustment block, an adjustable spring base and a spring;

[0013] The main frame is processed with a U-shaped through groove;

[0014] The limit adjustment block is installed in the U-shaped through slot of the main frame; the limit adjustment block is provided with a track slot with two ends open in the horizontal direction;

[0015] The adjustable spring base is installed in the track groove of the limit adjustment block, and the adjustable spring base is slidably matched with the corresponding track groove;

[0016] The spring is fixed on the adjustable spring base and is opposite to the choke vibrator;

[0017] Among them, by adjusting the position of the adjustable spring base in the track groove, the collision position of the spring and the flow-blocking vibrator is located in the middle of the flow-blocking vibrator; by adjusting the rotation angle of the limit adjustment block, the collision angle of the spring and the flow-blocking vibrator is vertical; by adjusting the position of the limit adjustment block in the U-shaped through groove, the initial distance between the spring and the flow-blocking vibrator is the set value.

[0018] Furthermore, the main frame is formed of a U-shaped frame and two curved plates; the plane where the U-shaped frame is located is arranged in the vertical direction, and the opening of the U-shaped frame is in the horizontal direction; the two curved plates are respectively formed in one piece at the ends of the two side plates of the U-shaped frame, and the plane where the two curved plates are located is arranged in the horizontal direction, and the two curved plates are bent in the direction of the U-shaped frame; the U-shaped through grooves are respectively provided at both ends of each curved plate;

[0019] The limit adjustment block is a cross-shaped plate, the track groove is arranged in the middle of the cross-shaped plate, and the bottom of the track groove is processed with a strip-shaped mounting hole consistent with its length direction; screws A are provided at both ends of the cross-shaped plate in the vertical direction; the two limit adjustment blocks are respectively symmetrically installed on both sides of the main frame, and are at an equal distance from the flow-blocking oscillator, and the surfaces where the track grooves of the two limit adjustment blocks are opposite to each other; the screws A at both ends of each limit adjustment block in the vertical direction respectively pass through the U-shaped through grooves on the two arc plates on the same side of the main frame, and are fastened by nuts to realize the connection between the limit adjustment block and the main frame;

[0020] The two adjustable spring bases are respectively installed in the track grooves of the two limit adjustment blocks, and each adjustable spring base is slidably matched with the corresponding track groove; wherein, a spring is fixed on the front of each adjustable spring base, and the two springs are arranged symmetrically along the main frame; a screw B is provided on the back of each adjustable spring base, and after the screw B passes through the strip mounting hole of the limit adjustment block, it is tightened by a nut to realize the connection between the adjustable spring base and the limit adjustment block.

[0021] Furthermore, one end of the elastic vibration beam is fixed to the middle of the U-shaped frame bottom plate of the main frame, and the other end is fixed with a flow-blocking vibrator, and the flow-blocking vibrator is located between the two arc-shaped plates of the main frame; when the elastic vibration beam is not vibrating, the center line of the flow-blocking vibrator along the length direction is located on the left-right symmetrical center plane of the main frame.

[0022] Furthermore, the number of the coils is two, and the number of the permanent magnets is two;

[0023] The two coils are symmetrically arranged up and down along the main frame, and the two coils are coaxial;

[0024] The two permanent magnets are symmetrically arranged along the main frame, and are respectively embedded and fixed at the upper and lower ends of the current-blocking vibrator, and are respectively opposite to the two coils but not in contact with the coils; when the elastic vibration beam is not vibrating, the two permanent magnets are respectively coaxial with the two coils.

[0025] Furthermore, the number of the coils is two, and the number of the permanent magnets is two;

[0026] The two coils are arranged asymmetrically up and down along the main frame;

[0027] The two permanent magnets are symmetrically arranged along the main frame, are embedded and fixed at the upper and lower ends of the choke vibrator, and are respectively opposite to the two coils one by one, but do not contact the coils.

[0028] Furthermore, the number of the coil is one, and the number of the permanent magnets is two;

[0029] One of the coils is mounted on the main frame;

[0030] The two permanent magnets are symmetrically arranged along the main frame, and are respectively embedded and fixed at the upper and lower ends of the choke vibrator, and one of the permanent magnets is opposite to the coil but not in contact with the coil.

[0031] Furthermore, the baffle vibrator is a columnar structure with a square, rectangular or triangular cross section.

[0032] Furthermore, the permanent magnet is a cylindrical structure with a square, circular or triangular cross section.

[0033] Furthermore, the main frame, limit adjustment block, and adjustable spring base are all made of resin material, the elastic vibration beam is made of beryllium bronze, the spring is made of 304 stainless steel, the coil is made of enameled copper wire, the permanent magnet is a strong neodymium iron boron magnet, and the choke vibrator is made of EVA foam.

[0034] Beneficial effects:

[0035] (1) The present invention is an electromagnetic wind-induced galloping energy harvesting device structure proposed by combining the wind-induced galloping effect and Faraday's electromagnetic induction principle. Unlike the traditional piezoelectric structure, the present invention converts the galloping motion of the choke vibrator under wind force into electrical energy output through electromagnetic induction to achieve energy harvesting. The internal impedance of the device is very small, generally only about ten ohms, which greatly improves the output power.

[0036] (2) In view of the large amplitude characteristics of the choke vibrator's galloping and the concentrated distribution characteristics of the permanent magnet's magnetic field, the present invention designs a vibration limiting structure consisting of left and right springs, a limit adjustment block and an adjustable spring base. This structure can not only reduce the amplitude of the choke vibrator, but also greatly reduce the vibration time of the choke vibrator's reactive output, solving the problem of the small power output duty cycle during the choke vibrator's vibration process; at the same time, it can also convert the kinetic energy of the potential-free output when the amplitude is large into the reverse motion kinetic energy of the choke vibrator through the spring, thereby increasing the vibration frequency of the choke vibrator, and at the same time increasing the output duty cycle and energy conversion efficiency, so that the conversion efficiency and output power of wind-induced vibration are further improved.

[0037] (3) The limit adjustment block, adjustable spring base and U-shaped through groove of the main frame in the present invention enable the device to be suitable for environments with different wind speeds and amplitudes; when in use, by adjusting the relative position and angle of the spring and the flow-blocking vibrator, the spring and the flow-blocking vibrator can basically achieve head-on collision under different wind speeds; in addition, the multi-installation hole design of the three-sided U-shaped groove structure of the main frame of the present invention also effectively increases its adaptability to the use environment.

[0038] (4) The structural dimensions of the current-blocking vibrator of the present invention are only 15*15*35mm, and the structural dimensions of the elastic vibration beam are only 15*50*0.2mm. Under the same output power, the structural dimensions of the device of the present invention are greatly reduced, and the miniaturization of the structure is achieved. At the same time, the permanent magnets are embedded in the two ends of the current-blocking vibrator, which further reduces the structural dimensions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural composition diagram of the present invention;

[0040] Figure 2 It is the front view of the present invention;

[0041] Among them, 1-main frame, 2-U-shaped slot structure, 3-elastic vibration beam, 4-limit adjustment block, 5-adjustable spring base, 6-spring, 7-coil, 8-permanent magnet, 9-current-blocking vibrator, 10-track slot, 11-U-shaped through slot, 12-nut. DETAILED DESCRIPTION

[0042] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0043] Example 1:

[0044] This embodiment provides an electromagnetic wind-induced vibration energy harvesting device, which has a symmetrical frame structure, and is symmetrical left and right and up and down respectively; see the attached Figure 1-2 The device includes: a main frame 1, an elastic vibration beam 3, a limit adjustment block 4, an adjustable spring base 5, a spring 6, a coil 7, a permanent magnet 8, a current-blocking vibrator 9 and a nut 12;

[0045] The main frame 1 is a symmetrical frame structure, formed of a U-shaped frame and two curved plates; the plane where the U-shaped frame is located is arranged in the vertical direction, and the opening of the U-shaped frame is in the horizontal direction; the two curved plates are respectively integrally formed at the ends of the two side plates of the U-shaped frame, and the plane where the two curved plates are located is arranged in the horizontal direction, and the two curved plates are bent in the direction of the U-shaped frame; U-shaped through grooves 11 are processed at both ends of each curved plate;

[0046] One end of the elastic vibration beam 3 is fixed to the middle part of the U-shaped frame bottom plate of the main frame 1 by bolts, and the other end is fixed with a flow-blocking vibrator 9 by bonding, and the flow-blocking vibrator 9 is located between the two curved plates of the main frame 1; wherein, the plane where the elastic vibration beam 3 is located is arranged in the vertical direction, and the flow-blocking vibrator 9 is a rectangular parallelepiped structure with a square cross-section, and its length direction is arranged in the vertical direction; in the natural state (that is, when the elastic vibration beam 3 is not vibrating), the center line of the flow-blocking vibrator 9 along the length direction is located on the left-right symmetrical center plane of the main frame 1;

[0047] The two coils 7 are arranged symmetrically up and down along the main frame 1 and are respectively mounted on opposite surfaces of the two arc-shaped plates. The two coils 7 are coaxial, and the axes of the two coils 7 are both located on the left-right symmetrical center plane of the main frame 1.

[0048] The permanent magnet 8 is a cylindrical structure. The two permanent magnets 8 are symmetrically arranged along the main frame 1, and are respectively embedded and fixed at the upper and lower ends of the current-blocking vibrator 9. They are respectively opposite to the two coils 7, but do not contact the coils 7. In the natural state (i.e., when the elastic vibration beam 3 is not vibrating), the two permanent magnets 8 are coaxial with the two coils 7.

[0049] The limit adjustment block 4 is a cross-shaped plate, which is processed with a track groove 10 with openings at both ends arranged in the horizontal direction, and the bottom of the track groove 10 is processed with a strip-shaped mounting hole consistent with its length direction; screws A are provided at both ends of the cross-shaped plate in the vertical direction; the two limit adjustment blocks 4 are respectively symmetrically installed on both sides of the main frame 1, and are at an equal distance from the choke vibrator 9, and the surfaces where the track grooves 10 of the two limit adjustment blocks 4 are opposite to each other; the specific connection relationship between each limit adjustment block 4 and the main frame 1 is: the screws A at both ends of the limit adjustment block 4 in the vertical direction respectively pass through the U-shaped through grooves 11 on the two arc plates on the same side of the main frame 1, and are fastened by nuts 12 to realize the connection between the limit adjustment block 4 and the main frame 1;

[0050] The two adjustable spring bases 5 are respectively installed in the track grooves 10 of the two limit adjustment blocks 4, and each adjustable spring base 5 is slidably matched with the corresponding track groove 10; wherein, a spring 6 is fixed to the front of each adjustable spring base 5 by adhesive, and the two springs 6 are arranged symmetrically along the main frame 1; a screw B is provided on the back of each adjustable spring base 5, and the screw B passes through the strip mounting hole of the limit adjustment block 4 and is fastened by a nut 12 to achieve the connection between the adjustable spring base 5 and the limit adjustment block 4;

[0051] Among them, by adjusting the position of the adjustable spring base 5 in the track groove 10, the relative position between the spring 6 and the flow-blocking vibrator 9 can be adjusted so that the collision position between the spring 6 and the flow-blocking vibrator 9 is located in the middle of the flow-blocking vibrator 9;

[0052] By adjusting the rotation angle of the limit adjustment block 4, the angle of the spring 6 relative to the flow-blocking vibrator 9 can be adjusted arbitrarily to ensure that the collision angle between the spring 6 and the flow-blocking vibrator 9 is vertical (i.e., frontal collision);

[0053] By adjusting the position of the limit adjustment block 4 in the U-shaped groove, the initial distance between the spring 6 and the flow-blocking vibrator 9 can be adjusted;

[0054] Among them, the main frame 1, the limit adjustment block 4, and the adjustable spring base 5 are all made of resin materials or other non-magnetic materials, the elastic vibration beam 3 is made of beryllium bronze, elastic steel or other elastic materials, the spring 6 is made of 304 stainless steel, the coil 7 is made of enameled copper wire, the permanent magnet 8 is made of neodymium iron boron strong magnet (NdFeB) or other permanent magnetic materials, and the current-blocking vibrator 9 is made of EVA foam or other non-magnetic lightweight materials; and the structural dimensions of the current-blocking vibrator 9 are 15*15*35mm, and the structural dimensions of the elastic vibration beam 3 are 15*50*0.2mm.

[0055] Working principle: The main frame 1 is fixed to the required installation position by bolts (the upper, lower and rear parts of the main frame 1 are equipped with U-shaped groove structures 2 for installation and fixation);

[0056] When the choke oscillator 9 is Figure 1 The wind force in the inlet direction causes galloping vibration, and at the same time, due to the action of the elastic vibration beam 3, the choke vibrator 9 forms a periodic reciprocating motion. At this time, the permanent magnets 8 at the upper and lower ends of the choke vibrator 9 also follow the choke vibrator 9 in the periodic reciprocating motion. During the movement of the permanent magnets 8, a periodically varying magnetic field is formed around the coil 7. Under the action of the periodic varying magnetic field, the coil 7 generates a periodically varying induced potential.

[0057] In addition, when the choke vibrator 9 vibrates, due to the unstable characteristics of the galloping, the vibration amplitude of the choke vibrator 9 is very large, but the magnetic field of the permanent magnet 8 is concentrated near the permanent magnet 8 itself. Therefore, when the choke vibrator 9 moves to a distance away from the coil 7, the magnetic field passing through the coil 7 is very weak, the rate of change of the magnetic flux of the coil 7 is basically zero, and there is no potential output. Therefore, there is a considerable period of time in one cycle when the output potential is zero, and the voltage output duty cycle is small; if the time when the output is zero can be reduced and the duty cycle can be increased, the output voltage and power will be effectively improved; therefore, the limit adjustment block 4 of this embodiment The vibration limiting structure composed of an adjustable spring base 5 and a spring 6 can solve this problem. When the amplitude of the choke vibrator 9 is large, the choke vibrator 9 will collide with the adjusted springs 6 on the left and right sides, and accelerate the reverse movement under the action of the spring 6, which not only limits the amplitude of the choke vibrator 9, shortens the movement time without induced potential output, increases the duty cycle, and increases the reciprocating motion frequency of the choke vibrator 9. At the same time, the elastic force of the limiting spring can produce an acceleration effect on the return motion of the choke vibrator, so that the maximum speed of the choke vibrator movement remains basically unchanged, thereby increasing the output voltage and power.

[0058] Example 2:

[0059] Based on Example 1, this embodiment replaces the structure of the two coils 7 that are symmetrical in vertical direction in Example 1 with a structure of two coils that are asymmetrical in vertical direction or a structure of a single coil. In this case, the two symmetrically arranged magnets 7 and the coil 7 are not necessarily coaxial. The asymmetrical arrangement of the two coils or the use of a single coil only differs in output power.

[0060] Example 3:

[0061] In this embodiment, based on the first embodiment, the cross-sectional shape of the current-blocking vibrator 9 can also be a non-streamlined bilaterally symmetrical shape such as a rectangle or a triangle; the cross-sectional shape of the permanent magnet 4 can also be a square, a triangle or other shapes.

[0062] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electromagnetic wind-induced vibration energy harvesting device, characterized in that: include: A main frame (1), an elastic vibration beam (3), a coil (7), a permanent magnet (8), a current-blocking vibrator (9), and an amplitude limiting component; One end of the elastic vibration beam (3) is fixed to the main frame (1), and the other end is fixed with a flow-blocking vibrator (9); wherein the plane where the elastic vibration beam (3) is located is arranged along the vertical direction, and the length direction of the flow-blocking vibrator (9) is arranged along the vertical direction; The coil (7) is fixed on the main frame (1), the permanent magnet (8) is fixed on the end of the current-blocking vibrator (9), and the coil (7) and the permanent magnet (8) are opposite to each other but not in contact; Two amplitude limiting components are respectively mounted on the main frame (1) and located on both sides of the flow-blocking vibrator (9), and are used to limit the amplitude of the flow-blocking vibrator (9) when the flow-blocking vibrator (9) undergoes a left-right reciprocating periodic motion; The amplitude limiting component comprises: a limit adjustment block (4), an adjustable spring base (5) and a spring (6); a U-shaped through groove (11) is processed on the main frame (1); the limit adjustment block (4) is installed in the U-shaped through groove (11) of the main frame (1); a track groove (10) with two ends open is provided on the limit adjustment block (4) in the horizontal direction; the adjustable spring base (5) is installed in the track groove (10) of the limit adjustment block (4), and the adjustable spring base (5) is slidably matched with the corresponding track groove (10); the spring (6) is fixed on the adjustable spring base (5) and is opposite to the flow-blocking vibrator (9); The invention relates to a method for adjusting the position of the adjustable spring base (5) in the track groove (10) so that the collision position of the spring (6) and the flow-blocking vibrator (9) is located in the middle of the flow-blocking vibrator (9); the method further comprises adjusting the rotation angle of the limit adjustment block (4) so ​​that the collision angle of the spring (6) and the flow-blocking vibrator (9) is vertical; and the method further comprises adjusting the position of the limit adjustment block (4) in the U-shaped through groove so that the initial distance between the spring (6) and the flow-blocking vibrator (9) is a set value.

2. The electromagnetic wind-induced galloping energy harvesting device according to claim 1, characterized in that: The main frame (1) is formed by integrally forming a U-shaped frame and two curved plates; the plane where the U-shaped frame is located is arranged in a vertical direction, and the opening of the U-shaped frame is in a horizontal direction; the two curved plates are respectively integrally formed at the ends of the two side plates of the U-shaped frame, and the plane where the two curved plates are located is arranged in a horizontal direction, and the two curved plates are both bent in the direction where the U-shaped frame is located; the U-shaped through grooves (11) are respectively provided at both ends of each curved plate; The limit adjustment block (4) is a cross-shaped plate, the track groove (10) is arranged in the middle of the cross-shaped plate, and the bottom of the track groove (10) is processed with a strip-shaped mounting hole consistent with its length direction; screws A are provided at both ends of the cross-shaped plate in the vertical direction; the two limit adjustment blocks (4) are respectively symmetrically installed on both sides of the main frame (1) and are at equal distances from the flow-blocking vibrator (9), and the surfaces where the track grooves (10) of the two limit adjustment blocks (4) are opposite to each other; the screws A at both ends of each limit adjustment block (4) in the vertical direction respectively pass through the U-shaped through grooves (11) on the two arc plates on the same side of the main frame (1) and are fastened by nuts (12) to achieve the connection between the limit adjustment block (4) and the main frame (1); The two adjustable spring bases (5) are respectively installed in the track grooves (10) of the two limit adjustment blocks (4), and each adjustable spring base (5) is slidably matched with the corresponding track groove (10); wherein, a spring (6) is fixed on the front of each adjustable spring base (5), and the two springs (6) are symmetrically arranged along the main frame (1); a screw rod B is provided on the back of each adjustable spring base (5), and the screw rod B passes through the strip-shaped mounting hole of the limit adjustment block (4) and is fastened by a nut (12) to realize the connection between the adjustable spring base (5) and the limit adjustment block (4).

3. The electromagnetic wind-induced galloping energy harvesting device according to claim 2, characterized in that: One end of the elastic vibration beam (3) is fixed to the middle of the U-shaped frame bottom plate of the main frame (1), and a flow-blocking vibrator (9) is fixed to the other end, and the flow-blocking vibrator (9) is located between two arc-shaped plates of the main frame (1); when the elastic vibration beam (3) is not vibrating, the center line of the flow-blocking vibrator (9) along the length direction is located on a left-right symmetrical center plane of the main frame (1).

4. An electromagnetic wind-induced galloping energy harvesting device according to any one of claims 1 to 3, characterized in that: The number of the coils (7) is two, and the number of the permanent magnets (8) is two; The two coils (7) are symmetrically arranged up and down along the main frame (1), and the two coils (7) are coaxial; The two permanent magnets (8) are symmetrically arranged along the main frame (1) in the upper and lower directions, are respectively embedded and fixed at the upper and lower ends of the current-blocking vibrator (9), and are respectively opposite to the two coils (7) one by one, but do not contact the coils (7); when the elastic vibration beam (3) does not vibrate, the two permanent magnets (8) are respectively coaxial with the two coils (7).

5. The electromagnetic wind-induced galloping energy harvesting device according to any one of claims 1 to 3, characterized in that: The number of the coils (7) is two, and the number of the permanent magnets (8) is two; The two coils (7) are asymmetrically arranged up and down along the main frame (1); The two permanent magnets (8) are symmetrically arranged along the main frame (1) and are respectively embedded and fixed at the upper and lower ends of the current-blocking vibrator (9). They are respectively opposite to the two coils (7) but do not contact the coils (7).

6. The electromagnetic wind-induced galloping energy harvesting device according to any one of claims 1 to 3, characterized in that: The number of the coil (7) is one, and the number of the permanent magnets (8) is two; One of the coils (7) is mounted on the main frame (1); The two permanent magnets (8) are symmetrically arranged along the main frame (1) and are respectively embedded and fixed at the upper and lower ends of the current-blocking vibrator (9), and one of the permanent magnets (8) is opposite to the coil (7) but does not contact the coil (7).

7. The electromagnetic wind-induced galloping energy harvesting device according to any one of claims 1 to 3, characterized in that: The flow-blocking vibrator (9) is a columnar structure with a square, rectangular or triangular cross section.

8. The electromagnetic wind-induced galloping energy harvesting device according to any one of claims 1 to 3, characterized in that: The permanent magnet (4) is a columnar structure with a square, circular or triangular cross section.

9. The electromagnetic wind-induced galloping energy harvesting device according to any one of claims 1 to 3, characterized in that: The main frame (1), the limit adjustment block (4), and the adjustable spring base (5) are all made of resin materials, the elastic vibration beam (3) is made of beryllium bronze, the spring (6) is made of 304 stainless steel, the coil (7) is made of enameled copper wire, the permanent magnet (8) is made of a strong neodymium iron boron magnet, and the current-blocking vibrator (9) is made of EVA foam.

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