Miniature wave power generation device based on flexible piezoelectric polymer film

Abstract

The invention discloses a miniature wave power generation device based on a flexible piezoelectric polymer film, which comprises a spherical floating body, a counterweight module, a bottom plate, a piezoelectric module and a circuit board, the counterweight module is arranged at the lower arc top in the spherical floating body, the bottom plate is connected with the counterweight module, the piezoelectric module comprises a pendulum structure, a magnetic coupling structure and the flexible piezoelectric polymer film, and the circuit board is connected with the piezoelectric module. The pendulum structure and the magnetic coupling structure are used for collecting longitudinal wave energy and transverse wave energy, the pendulum structure is connected with an upper arc top in the spherical floating body, and the magnetic coupling structure is connected with the bottom plate; when the spherical floating body moves, the pendulum structure and the magnetic coupling structure are driven to move, so that the flexible piezoelectric polymer film vibrates and deforms, kinetic energy is converted into electric energy, and the electric energy is transmitted to an energy storage capacitor arranged on a circuit board through a wire. On the basis, longitudinal and transverse wave energy can be collected at the same time to achieve autonomous power supply by adopting the pendulum and the magnetic coupling structure, and the service life of the power generation device can be effectively prolonged by adopting the flexible piezoelectric polymer film.

Description

Technical Field

[0001] The embodiments of the present invention relate to, but are not limited to, the field of marine energy utilization technology, and in particular to a micro wave energy power generation device based on a flexible piezoelectric polymer film. Background Art

[0002] With the global depletion of fossil energy and the serious environmental pollution caused by its large-scale use, the search for a clean, renewable energy source has become an urgent issue that needs to be addressed. Common renewable energy sources include solar energy, wind energy, thermal energy, and biomass energy. However, solar and wind energy have low energy density and unstable energy supply, making them difficult to meet global energy needs. Thermal energy and biomass energy, on the other hand, have not been widely promoted due to geographical distribution restrictions and large land requirements. Compared with the above energy sources, wave energy, as a clean energy source with high energy density and stable supply, has great development potential. However, current piezoelectric wave energy power generation devices cannot fully collect wave energy, resulting in low wave energy utilization. In addition, because the piezoelectric material they use is a rigid material, there is a risk of fracture when subjected to long-term wave impacts, which reduces the service life of the power generation device. Summary of the Invention

[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0004] An embodiment of the present invention provides a micro wave energy power generation device based on a flexible piezoelectric polymer film. It adopts a pendulum and magnetic coupling structure, which can simultaneously collect longitudinal wave energy and transverse wave energy, thereby efficiently utilizing wave energy to achieve autonomous power supply; at the same time, the power generation device adopts a flexible piezoelectric polymer film, which can effectively extend the service life of the power generation device.

[0005] The first aspect of an embodiment of the present invention provides a micro wave energy generation device based on a flexible piezoelectric polymer film, comprising: a spherical float, a counterweight module, a base plate, a piezoelectric module and a circuit board, wherein the counterweight module is installed on the lower arc top inside the spherical float, and the base plate is connected to the counterweight module. The piezoelectric module comprises a pendulum structure, a magnetic coupling structure and a flexible piezoelectric polymer film. The pendulum structure and the magnetic coupling structure are used to collect longitudinal wave energy and transverse wave energy. The pendulum structure is connected to the upper arc top inside the spherical float, and the magnetic coupling structure is connected to the base plate. When the spherical float moves, the pendulum structure and the magnetic coupling structure are driven to move, so that the flexible piezoelectric polymer film vibrates and deforms, converts kinetic energy into electrical energy and transmits it to the energy storage capacitor arranged on the circuit board through a wire. The electrical energy stored in the energy storage capacitor is used to drive the circuit board to work.

[0006] In some embodiments, a fixed cylinder and a fixed ring are provided on the base plate, and a space is left between the fixed cylinder and the fixed ring for arranging the flexible piezoelectric polymer film. The end of the flexible piezoelectric polymer film is adhered to the fixed ring and clamped with the fixed cylinder. The flexible piezoelectric polymer film uses flexible PET plastic as the packaging material.

[0007] In some embodiments, the pendulum structure consists of a ball seat, a double-headed screw, an upper threaded steel ball, a lower threaded steel ball, a flexible piezoelectric polymer film, a fixed cylinder and a fixed ring. The ball seat is a hollow cylindrical structure. A circular ring piece protrudes from the bottom end of the ball seat. The protruding circular ring piece is used to allow the upper threaded steel ball to rotate freely without falling. The ball seat is connected to the upper arc top inside the spherical float. The two ends of the double-headed screw are respectively connected to the upper threaded steel ball and the lower threaded steel ball. The upper threaded steel ball can rotate freely in the ball seat; when excited by lateral waves, the lower threaded steel ball hits the free end of the flexible piezoelectric polymer film, causing the flexible piezoelectric polymer film to deform, thereby converting mechanical energy into electrical energy.

[0008] In some embodiments, the spherical float is composed of an upper hemispherical plastic shell with edges and a lower hemispherical plastic shell with edges. The upper hemispherical plastic shell with edges and the lower hemispherical plastic shell with edges are fixed by bolts and nuts, and a layer of sealing rubber ring is provided between the upper hemispherical plastic shell with edges and the lower hemispherical plastic shell with edges.

[0009] In some embodiments, the magnetic coupling structure includes a bolt, an upper clamp, a lower clamp, a flexible piezoelectric polymer film, an upper magnet, a suspended magnet, a lower magnet, a cylindrical shell and a circular base, the upper magnet is connected to the flexible piezoelectric polymer film, the end of the flexible piezoelectric polymer film is between the upper clamp and the lower clamp, the lower clamp is connected to the cylindrical shell and clamped by bolts, the circular base is connected to the bottom plate, the lower magnet is connected to the circular base, the upper magnet and the lower magnet have the same polarity, and the upper magnet and the lower magnet have opposite polarity to the suspended magnet, respectively.

[0010] In some embodiments, the number of the magnetic coupling structures is four, and the four magnetic coupling structures are respectively fixed on the diagonals of the base plate through the cylindrical base, the upper magnet is adhered to the free end of the flexible piezoelectric polymer film, the end of the flexible piezoelectric polymer film is clamped by the upper clamp and the lower clamp, and the tightness is adjusted by bolts, the lower clamp is connected to the cylindrical shell, the cylindrical base is adhered to the cylindrical shell, and the lower magnet is adhered to the cylindrical base.

[0011] In some embodiments, when excited by longitudinal waves, the levitation magnet moves upward, driving the upper magnet to move upward, thereby causing the flexible piezoelectric polymer film to vibrate, converting mechanical energy into electrical energy; when not excited by longitudinal waves, the levitation magnet and the upper magnet return to their initial state due to gravity.

[0012] In some embodiments, the counterweight module consists of a connecting cylinder and a counterweight block, the connecting cylinder is connected to the base plate, and the counterweight block is arranged below the connecting cylinder.

[0013] In some embodiments, the circuit board is arranged on the base plate, and the circuit board includes wiring terminals, a rectifier bridge, an energy storage capacitor, an energy management module and an electronic device; the electric energy is connected to the wiring terminals on the circuit board through the wires, and then connected to the energy storage capacitor and the energy management module after passing through the rectifier bridge. After the energy storage capacitor reaches a certain voltage, the electric energy is output to the electronic device at a fixed voltage.

[0014] In some embodiments, the flexible piezoelectric polymer film uses flexible PET plastic as a packaging material.

[0015] An embodiment of the present invention provides a micro-wave power generation device based on a flexible piezoelectric polymer film, comprising: a spherical float, a counterweight module, a bottom plate, a piezoelectric module, and a circuit board. The counterweight module is mounted on the lower arc top of the spherical float, and the bottom plate is connected to the counterweight module. The piezoelectric module includes a pendulum structure, a magnetic coupling structure, and a flexible piezoelectric polymer film. The pendulum structure and the magnetic coupling structure are used to collect longitudinal and transverse wave energy. The pendulum structure is connected to the upper arc top of the spherical float, and the magnetic coupling structure is connected to the bottom plate. When the spherical float moves, the pendulum structure and the magnetic coupling structure are driven to move, causing the flexible piezoelectric polymer film to vibrate and deform, converting kinetic energy into electrical energy, which is transmitted via a wire to an energy storage capacitor provided on the circuit board. The electrical energy stored in the energy storage capacitor is used to drive the circuit board. Based on this, the micro-wave power generation device based on a flexible piezoelectric polymer film of the present invention uses a pendulum and magnetic coupling structure to simultaneously collect longitudinal and transverse wave energy, converting low-frequency, irregular ocean wave fluctuation energy into significant deformation and high-frequency vibration of the flexible piezoelectric polymer film, thereby efficiently utilizing wave energy to achieve autonomous power supply. At the same time, the power generation device uses flexible piezoelectric polymer film to collect wave energy on the water surface, which not only effectively collects sufficient energy, but also greatly extends the service life of the device and enhances the durability and reliability of the device.

[0016] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purposes and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation to the technical solution of the present invention.

[0018] Figure 1 1 is a schematic diagram of the external structure of a micro wave energy power generation device based on a flexible piezoelectric polymer film provided by one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of a micro wave energy power generation device based on a flexible piezoelectric polymer film provided by one embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional view of the overall structure of a micro wave energy power generation device based on a flexible piezoelectric polymer film provided by one embodiment of the present invention;

[0021] Figure 4 is a cross-sectional view of a magnetic coupling structure provided by one embodiment of the present invention;

[0022] Figure 5 This is a structural diagram of a counterweight module provided by one embodiment of the present invention;

[0023] Figure 6 This is a structural diagram of a circuit board provided by one embodiment of the present invention;

[0024] Legend: 1 spherical float; 2 bolt; 3 sealing rubber ring; 4 nut; 5 ball seat; 6 double-headed screw; 7 upper threaded steel ball; 8 lower threaded steel ball; 9 flexible piezoelectric polymer film; 10 fixed cylinder; 11 fixed ring; 12 upper clamp; 13 lower clamp; 14 upper magnet; 15 suspension magnet; 16 lower magnet; 17 cylindrical shell; 18 circular base; 19 bottom plate; 20 connecting cylinder; 21 counterweight; 22 circuit board; 23 terminal block; 24 rectifier bridge; 25 energy storage capacitor; 26 energy management module; 27 electronic equipment. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] It should be understood that in the description of the embodiments of the present invention, "multiple" (or multiple) means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, and "above," "below," and "within" are understood to include the number itself. The terms "first," "second," and so on are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] With the depletion of global fossil energy and the serious environmental pollution problems caused by its large-scale use, the search for a clean, renewable energy source has become an urgent problem that needs to be solved. Currently, the more common renewable energy sources include solar energy, wind energy, thermal energy, biomass energy, etc. However, solar energy and wind energy have low energy density and unstable energy supply, making it difficult to meet global energy needs. Thermal energy and biomass energy have not been widely promoted due to geographical distribution restrictions and large land requirements. Compared with the above energy sources, wave energy, as a clean energy source with high energy density and stable supply, has higher development potential. The present invention adopts a piezoelectric micro wave energy power generation device to meet the demand for low-cost electricity for distributed small equipment. In terms of piezoelectric power generation devices, common piezoelectric materials can be mainly divided into two categories: piezoelectric ceramics and piezoelectric polymers. Piezoelectric ceramics are represented by materials such as BTO (barium titanate) and PZT (lead zirconate titanate), while piezoelectric polymers are represented by materials such as PVDF (polyvinylidene fluoride) and PLLA (polylactic acid). Although piezoelectric ceramics BTO and PZT are currently more commonly used, they are rigid materials and may be at risk of breaking when subjected to long-term wave impacts. Flexible piezoelectric polymers PVDF and PLLA have better flexibility and can withstand greater impact and deformation, making them more suitable for wave energy collection. Most piezoelectric materials have high sensitivity and can quickly convert applied mechanical vibrations and stresses into AC potential and current. They have higher energy density and are simple and durable. However, the problem of weak power generation capacity of piezoelectric generators also exists.

[0028] In order to solve the above technical problems, an embodiment of the present invention provides a micro wave energy power generation device based on a flexible piezoelectric polymer film, including: a spherical float, a counterweight module, a base plate, a piezoelectric module and a circuit board, the counterweight module is installed on the lower arc top inside the spherical float, the base plate is connected to the counterweight module, the piezoelectric module includes a pendulum structure, a magnetic coupling structure and a flexible piezoelectric polymer film, the pendulum structure and the magnetic coupling structure are used to collect longitudinal wave energy and transverse wave energy, the pendulum structure is connected to the upper arc top inside the spherical float, and the magnetic coupling structure is connected to the base plate; when the spherical float moves, the pendulum structure and the magnetic coupling structure are driven to move, so that the flexible piezoelectric polymer film vibrates and deforms, converts kinetic energy into electrical energy and transmits it to the energy storage capacitor arranged on the circuit board through a wire, and the electrical energy stored in the energy storage capacitor is used to drive the circuit board to work. Based on this, the present invention's flexible piezoelectric polymer film-based micro-wave power generation device employs a pendulum and magnetic coupling structure to simultaneously harvest longitudinal and transverse wave energy. This device converts low-frequency, irregular wave motion into significant deformation and high-frequency vibrations within the flexible piezoelectric polymer film, effectively utilizing wave energy for autonomous power generation. Furthermore, the flexible piezoelectric polymer film employed in the power generation device for surface wave energy harvesting not only effectively collects sufficient energy but also significantly extends the device's lifespan, enhancing its durability and reliability.

[0029] It can be understood that a fixed cylinder and a fixed ring are provided on the bottom plate, and a space for setting a flexible piezoelectric polymer film is left between the fixed cylinder and the fixed ring. The end of the flexible piezoelectric polymer film is adhered to the fixed ring and clamped to the fixed cylinder.

[0030] It can be understood that the pendulum structure consists of a ball seat, a double-headed screw, an upper threaded steel ball, a lower threaded steel ball, a flexible piezoelectric polymer film, a fixed cylinder and a fixed ring. The ball seat is a hollow cylindrical structure. There is a protruding circular ring piece at the bottom end of the ball seat. The protruding circular ring piece is used to allow the upper threaded steel ball to rotate freely without falling. The ball seat is connected to the upper arc top inside the spherical float. The two ends of the double-headed screw are respectively connected to the upper threaded steel ball and the lower threaded steel ball. The upper threaded steel ball can rotate freely in the ball seat; when excited by lateral waves, the lower threaded steel ball hits the free end of the flexible piezoelectric polymer film, causing the flexible piezoelectric polymer film to deform, thereby converting mechanical energy into electrical energy.

[0031] It can be understood that the spherical float is composed of an upper hemispherical plastic shell with edges and a lower hemispherical plastic shell with edges. The upper hemispherical plastic shell with edges and the lower hemispherical plastic shell with edges are fixed by bolts and nuts, and a layer of sealing rubber ring is provided between the upper hemispherical plastic shell with edges and the lower hemispherical plastic shell.

[0032] It can be understood that the magnetic coupling structure includes bolts, an upper clamp, a lower clamp, a flexible piezoelectric polymer film, an upper magnet, a suspended magnet, a lower magnet, a cylindrical shell and a circular base, the upper magnet is connected to the free end of the flexible piezoelectric polymer film, the end of the flexible piezoelectric polymer film is between the upper clamp and the lower clamp, the lower clamp is connected to the cylindrical shell and clamped by bolts, the circular base is connected to the bottom plate, and the lower magnet is connected to the circular base. The polarity of the upper magnet and the lower magnet is the same, and the upper magnet and the lower magnet have opposite polarity to the suspended magnet.

[0033] It can be understood that there are four magnetic coupling structures, which are fixed on the diagonals of the base plate through cylindrical bases. The upper magnet is attached to the free end of the flexible piezoelectric polymer film. The end of the flexible piezoelectric polymer film is clamped by the upper clamp and the lower clamp, and the tightness is adjusted by bolts. The lower clamp is connected to the cylindrical shell, the cylindrical base is attached to the cylindrical shell, and the lower magnet is attached to the cylindrical base.

[0034] It can be understood that when excited by longitudinal waves, the suspended magnet moves upward, driving the upper magnet to move upward, thereby causing the flexible piezoelectric polymer film to vibrate, converting mechanical energy into electrical energy; when not excited by longitudinal waves, the suspended magnet and the upper magnet return to their initial state due to gravity.

[0035] It can be understood that the counterweight module consists of a connecting cylinder and a counterweight block, the connecting cylinder is connected to the base plate, and the counterweight block is arranged below the connecting cylinder.

[0036] It can be understood that the circuit board is arranged on the base plate, and the circuit board includes wiring terminals, a rectifier bridge, an energy storage capacitor, an energy management module and electronic equipment; the electric energy is connected to the wiring terminals on the circuit board through wires, and then connected to the energy storage capacitor and the energy management module after passing through the rectifier bridge. After the energy storage capacitor reaches a certain voltage, the electric energy is output to the electronic equipment at a fixed voltage. The electronic equipment can be used for lighting indication and environmental monitoring power supply in offshore or marine areas.

[0037] The flexible piezoelectric polymer film-based micro-wave power generation device of the present invention efficiently converts kinetic energy generated by waves into electrical energy. It can simultaneously collect both longitudinal and transverse wave energy, converting low-frequency, irregular wave motion into significant deformation and high-frequency vibrations of the flexible piezoelectric polymer film, thereby efficiently utilizing wave energy to achieve autonomous power supply. Furthermore, the flexible piezoelectric polymer film used in the power generation device for surface wave energy collection not only effectively collects sufficient energy but also significantly extends the device's service life, enhancing its durability and reliability.

[0038] The micro wave energy generation device based on the flexible piezoelectric polymer film of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0039] like Figures 1 to 6 As shown, a micro wave energy generator based on a flexible piezoelectric polymer film according to one embodiment of the present invention includes a spherical float, a counterweight module, a base plate 19, a piezoelectric module, and a circuit board 22. The spherical float 1 is composed of two upper and lower hemispherical plastic shells with edges, secured by four bolts 2 and four nuts 4. A sealing rubber ring 3 is located between the hemispherical plastic shells, also secured by bolts 2 and nuts 4, enhancing its waterproof performance.

[0040] like Figure 2 and Figure 3 As shown, the interior of the spherical float consists of a piezoelectric module, a base plate 19, a counterweight 21, and a circuit board 22. The piezoelectric module includes a pendulum structure, a magnetic coupling structure, and a flexible piezoelectric polymer film 9. The flexible piezoelectric polymer film 9 is encapsulated using flexible PET (polyethylene terephthalate) plastic. The pendulum structure consists of a ball seat 5, a double-ended screw 6, an upper threaded steel ball 7, a lower threaded steel ball 8, the flexible piezoelectric polymer film 9, a fixed cylinder 10, and a fixed ring 11. The ball seat 5 is a hollow cylindrical structure with a protruding ring at the bottom to allow the upper threaded steel ball 7 to rotate freely without falling. The upper and lower threaded steel balls 7 and 8 are connected at both ends of the double-ended screw. When excited by lateral waves, the lower threaded steel ball 8 can swing freely within a certain angle, striking the free end of the flexible piezoelectric polymer film 9, which is fixed to the fixed cylinder 10 and fixed ring 11, causing significant deformation, thereby converting mechanical energy into electrical energy.

[0041] like Figure 4As shown, the magnetic coupling structure consists of a bolt 2, a flexible piezoelectric polymer film 9, an upper clamp 12, a lower clamp 13, an upper magnet 14, a levitation magnet 15, a lower magnet 16, a cylindrical housing 17, and a circular base 18. There are four magnetic coupling structures, each secured to opposite corners of a base plate 19 via a cylindrical base 18. The upper magnet is bonded to the free end of the flexible piezoelectric polymer film 9, which is clamped by the upper and lower clamps 12 and 13, with the tension adjusted by bolt 2. The lower clamp 13 is connected to the cylindrical housing 17 to secure the upper structure. The cylindrical base 18 is adhesively bonded to the cylindrical housing 17 to facilitate magnet placement and replacement. The lower magnet 16 is bonded to the cylindrical base 18. The levitation magnet 15 has opposite polarity to the upper and lower magnets 14 and 16. The repulsive force between the magnets balances with gravity, creating a spring-like effect. When excited by longitudinal waves, the force balance between the magnets is disrupted, causing the levitation magnet 15 to move upward, driving the upper magnet 14 to also move upward, thereby causing the flexible piezoelectric polymer film 9 to vibrate, converting mechanical energy into electrical energy. Gravity then pulls the levitation magnet 15 and the upper magnet 14 back to their initial state. This structure also utilizes the nonlinear characteristics of magnetic force to lower the resonant frequency of the flexible piezoelectric polymer film, adapting it to the low-frequency characteristics of ocean waves. It should be noted that the resonant frequency of the flexible piezoelectric polymer film refers to the frequency at which its vibration reaches maximum amplitude when subjected to external excitation.

[0042] like Figure 5 As shown, the counterweight module consists of a connecting cylinder 20 and a counterweight block 21, wherein the connecting cylinder 20 is connected to the bottom plate 19. The overall function is to keep the center of gravity at the lower end of the spherical float, and to restore the horizontal position after wave excitation to prevent lateral deviation.

[0043] like Figure 6 As shown, the above converted electrical energy is connected to the terminal 23 on the circuit board 22 through a wire, and then connected to the energy storage capacitor 25 and the energy management module 26 after passing through the rectifier bridge 24. After the energy storage capacitor 25 reaches a certain voltage, the electrical energy is output to the electronic device 27 at a fixed voltage. The electronic device 27 can be used for lighting indication and environmental monitoring in offshore or marine areas.

[0044] Based on this, the micro wave energy generation device based on flexible piezoelectric polymer film provided in an embodiment of the present invention successfully converts low-frequency, irregular wave fluctuation energy into significant deformation and high-frequency vibration of the flexible piezoelectric polymer film by simultaneously collecting longitudinal and lateral energy through a pendulum and magnetic coupling structure. At the same time, the use of flexible piezoelectric polymer film can effectively extend the life of the power generation device.

[0045] Compared with the prior art, the micro wave energy generation device based on flexible piezoelectric polymer film of the present invention has at least the following beneficial effects:

[0046] 1. The pendulum structure and magnetic coupling structure can simultaneously collect longitudinal and transverse wave energy, converting low-frequency, irregular wave energy into significant deformation and high-frequency vibration of the flexible piezoelectric polymer film.

[0047] 2. The use of flexible piezoelectric polymer films for wave energy harvesting on the water surface not only effectively collects sufficient energy but also significantly extends the service life of the device, enhancing the durability and reliability of the system.

[0048] 3. The pendulum structure and magnetic coupling structure can simultaneously collect longitudinal and transverse wave energy and achieve the effect of increasing the frequency of the flexible piezoelectric polymer film, so that the flexible piezoelectric polymer film can reach the resonant frequency faster and improve the energy collection efficiency.

[0049] 4. The use of flexible piezoelectric polymer materials for surface wave energy collection not only makes it easier for structures to coordinate, but also ensures that the service life of the device is extended while sufficient energy is collected.

[0050] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the above implementation. Those skilled in the art can also make various equivalent modifications or substitutions under the shared conditions that do not violate the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A micro wave energy power generation device based on a flexible piezoelectric polymer film, characterized in that: include: A spherical float, a counterweight module, a base plate, a piezoelectric module and a circuit board, wherein the counterweight module is installed on the lower arc top inside the spherical float, the base plate is connected to the counterweight module, the piezoelectric module includes a pendulum structure, a magnetic coupling structure and a flexible piezoelectric polymer film, the pendulum structure and the magnetic coupling structure are used to collect longitudinal wave energy and transverse wave energy, the pendulum structure is connected to the upper arc top inside the spherical float, and the magnetic coupling structure is connected to the base plate; when the spherical float moves, the pendulum structure and the magnetic coupling structure are driven to move, so that the flexible piezoelectric polymer film vibrates and deforms, converting kinetic energy into electrical energy and transmitting it to the energy storage capacitor arranged on the circuit board through a wire, and the electrical energy stored in the energy storage capacitor is used to drive the circuit board to work.

2. The micro wave energy power generation device based on flexible piezoelectric polymer film according to claim 1, characterized in that: A fixed cylinder and a fixed ring are provided on the bottom plate, and a space for arranging the flexible piezoelectric polymer film is reserved between the fixed cylinder and the fixed ring. The end of the flexible piezoelectric polymer film is adhered to the fixed ring and clamped with the fixed cylinder.

3. The micro wave energy power generation device based on flexible piezoelectric polymer film according to claim 2, characterized in that: The pendulum structure consists of a ball seat, a double-headed screw, an upper threaded steel ball, a lower threaded steel ball, a flexible piezoelectric polymer film, a fixed cylinder and a fixed ring. The ball seat is a hollow cylindrical structure. A circular ring piece protrudes from the bottom end of the ball seat. The protruding circular ring piece is used to allow the upper threaded steel ball to rotate freely without falling. The ball seat is connected to the upper arc top inside the spherical float. The two ends of the double-headed screw are respectively connected to the upper threaded steel ball and the lower threaded steel ball. The upper threaded steel ball can rotate freely in the ball seat; when excited by lateral waves, the lower threaded steel ball hits the free end of the flexible piezoelectric polymer film, causing the flexible piezoelectric polymer film to deform, thereby converting mechanical energy into electrical energy.

4. The micro wave energy power generation device based on flexible piezoelectric polymer film according to claim 1, characterized in that: The spherical float is composed of an upper hemispherical plastic shell with an edge and a lower hemispherical plastic shell with an edge. The upper hemispherical plastic shell with an edge and the lower hemispherical plastic shell with an edge are fixed by bolts and nuts. A layer of sealing rubber ring is provided between the upper hemispherical plastic shell with an edge and the lower hemispherical plastic shell with an edge.

5. The micro wave energy power generation device based on flexible piezoelectric polymer film according to claim 1, characterized in that: The magnetic coupling structure includes a bolt, an upper clamp, a lower clamp, a flexible piezoelectric polymer film, an upper magnet, a suspension magnet, a lower magnet, a cylindrical shell and a circular base, the upper magnet is connected to the free end of the flexible piezoelectric polymer film, the end of the flexible piezoelectric polymer film is between the upper clamp and the lower clamp, the lower clamp is connected to the cylindrical shell and clamped by bolts, the circular base is connected to the bottom plate, and the lower magnet is connected to the circular base, the upper magnet and the lower magnet have the same polarity, and the upper magnet and the lower magnet have opposite polarity to the suspension magnet.

6. The micro wave energy power generation device based on flexible piezoelectric polymer film according to claim 5, characterized in that: There are four magnetic coupling structures, which are respectively fixed on the diagonals of the base plate through the cylindrical base. The upper magnet is adhered to the free end of the flexible piezoelectric polymer film. The end of the flexible piezoelectric polymer film is clamped by the upper clamp and the lower clamp, and the tightness is adjusted by bolts. The lower clamp is connected to the cylindrical shell, the cylindrical base is adhered to the cylindrical shell, and the lower magnet is adhered to the cylindrical base.

7. The micro wave energy power generation device based on flexible piezoelectric polymer film according to claim 5, characterized in that: When excited by longitudinal waves, the levitation magnet moves upward, driving the upper magnet to move upward, thereby causing the flexible piezoelectric polymer film to vibrate and convert mechanical energy into electrical energy; when not excited by longitudinal waves, the levitation magnet and the upper magnet return to their initial state due to gravity.

8. The micro wave energy generator based on flexible piezoelectric polymer film according to claim 1, characterized in that: The counterweight module consists of a connecting cylinder and a counterweight block. The connecting cylinder is connected to the bottom plate, and the counterweight block is arranged below the connecting cylinder.

9. The micro wave energy power generation device based on flexible piezoelectric polymer film according to claim 1, characterized in that: The circuit board is arranged on the base plate, and the circuit board includes wiring terminals, a rectifier bridge, an energy storage capacitor, an energy management module and an electronic device; the electric energy is connected to the wiring terminals on the circuit board through the wires, and then connected to the energy storage capacitor and the energy management module after passing through the rectifier bridge. After the energy storage capacitor reaches a certain voltage, the electric energy is output to the electronic device at a fixed voltage.

10. The micro wave energy power generation device based on flexible piezoelectric polymer film according to claim 1, characterized in that: The flexible piezoelectric polymer film uses flexible PET plastic as a packaging material.

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