Fiber-wound spherical multi-direction ocean energy collection device

Abstract

The invention relates to the technical field of energy collection, in particular to a fiber winding spherical multi-direction ocean energy collection device which comprises a composite material shell, a first supporting piece, a second supporting piece, an electromagnetic energy collection mechanism, a piezoelectric energy collection mechanism and a sensor unit. When external vibration occurs, the annular magnet moves in the cylinder to cause magnetic field change, so that induction current is generated in the copper wire, and electromagnetic energy is collected; the piezoelectric energy acquisition mechanism comprises two piezoelectric energy acquisition assemblies and a piezoelectric enhancement assembly; and the sensor unit is connected with the electromagnetic energy acquisition mechanism and / or the piezoelectric energy acquisition mechanism. The energy collector has the advantages that the characteristics of corrosion resistance and weather resistance of the composite shell are utilized, and the electromagnetic energy collecting mechanism and the piezoelectric energy collecting mechanism are arranged in an annular array mode, so that the energy collector effectively works in the ocean environment with the complex direction in all weather.

Description

Technical Field

[0001] The present invention relates to the technical field of energy collection, and in particular to a fiber-wound spherical multi-directional ocean energy collection device. Background Art

[0002] The rapid development of wireless sensor network technology makes it more convenient for people to monitor in complex and harsh environments. Marine environment monitoring is an important application of wireless sensor network systems, which is of great significance to protecting the marine ecological environment and protecting marine biodiversity.

[0003] Traditionally, using chemical batteries and other means to power sensor systems has problems such as environmental pollution and high replacement costs. Using ocean energy to achieve self-powering of marine environment monitoring sensor systems is an effective way to solve this problem. Ocean energy has many advantages such as renewability, huge reserves, wide distribution, clean and environmental protection, and high energy density, and has huge application potential. Therefore, the rational development and utilization of ocean energy has great strategic significance.

[0004] At present, various wave energy harvesting devices have been applied to the field of ocean energy harvesting, but resistance to seawater corrosion, adaptability to complex wave excitation methods, conversion efficiency, output power, etc. are several important factors restricting the development of wave energy harvesting devices. Summary of the invention

[0005] In view of this, the present invention aims to provide a fiber-wound spherical multi-directional ocean energy harvesting device, which makes use of the corrosion resistance and weather resistance of the composite material shell, as well as the annular array arrangement of the electromagnetic energy harvesting mechanism and the piezoelectric energy harvesting mechanism, so that the energy harvester can work effectively in all-weather and all-climate conditions in a marine environment with complex directions.

[0006] To achieve the above-mentioned purpose, the technical solution created by the present invention is implemented as follows: a fiber-wound spherical multi-directional ocean energy harvesting device, comprising: a composite material shell, the composite material shell comprising a spherical shell, on which an interface is provided; a first support member and a second support member, the first support member and the second support member are both located in the spherical shell, the first support member is arranged away from the interface and connected to the inner wall of the spherical shell; the second support member is arranged close to the interface and connected to the inner wall of the spherical shell; at least one electromagnetic energy harvesting mechanism, the electromagnetic energy harvesting mechanism is arranged on the first support member; the electromagnetic energy harvesting mechanism comprises a cylinder, an annular magnet, a first spring and a copper wire; one end of the cylinder is connected to the first support member, and the other end of the cylinder is connected to the inner wall of the spherical shell; the copper wire is wound on the outer surface of the cylinder, the annular magnet is located in the cylinder, and is connected to the cylinder or the inner wall of the spherical shell through the first spring; when the external vibration When the cylinder moves, the annular magnet moves in the cylinder, causing the magnetic field to change, thereby generating an induced current in the copper wire to realize the collection of electromagnetic energy; at least one piezoelectric energy collection mechanism, the piezoelectric energy collection mechanism is located between the first support member and the second support member; the piezoelectric energy collection mechanism includes two piezoelectric energy collection components and a piezoelectric enhancement component, the two piezoelectric energy collection components are arranged radially at intervals along the first support member and are connected to the lower surface of the first support member; the piezoelectric enhancement component is arranged radially along the second support member, connected to the upper surface of the second support member, and is located directly below the two piezoelectric energy collection components to enhance the piezoelectric energy output; a sensor unit, the sensor unit is arranged on the spherical shell, the sensor unit is connected to the electromagnetic energy collection mechanism and / or the piezoelectric energy collection mechanism, and the sensor unit works through the electric energy generated by the electromagnetic energy collection mechanism and / or the piezoelectric energy collection mechanism.

[0007] Furthermore, the composite material shell also includes a metal joint, a cover plate and a sealing ring; the spherical shell is provided with an inner lining layer, a carbon fiber composite material layer and a protective layer in sequence from the inside to the outside; the metal joint is arranged at the interface and is connected to the inner lining layer; the metal joint is provided with a through hole; the cover plate includes a disc and a boss arranged on the disc, the outer circle of the disc is equal to the outer circle of the interface of the carbon fiber composite material layer, the boss is adapted to the through hole, a sealing groove is provided on the outer circumference of the boss, the sealing ring is arranged in the sealing groove, and abuts against the inner wall of the through hole.

[0008] Furthermore, the first support member includes a first sector block group and a first connecting plate. The first sector block group together forms a first circular support member. A first hole is provided through the center of the first circular support member. Two adjacent first sector blocks of the first sector block group are connected by a first connecting plate.

[0009] Furthermore, an electromagnetic energy harvesting mechanism is provided on the upper surface of each first sector-shaped block, and the electromagnetic energy harvesting mechanism is evenly distributed on a first preset circle and a second preset circle of the first circular support member along the radial direction of the first circular support member, the first preset circle is close to the first hole, and the second preset circle is close to the outer circumference of the first circular support member; the number of electromagnetic energy harvesting mechanisms arranged on the second preset circle is greater than the number of electromagnetic energy harvesting mechanisms arranged on the first preset circle.

[0010] Furthermore, the second support member includes a second sector block group and a second connecting plate. The second sector block group together forms a second circular support member. A second hole is provided through the center of the second circular support member. Two adjacent second sector blocks of the second sector block group are connected by a second connecting plate.

[0011] Furthermore, the piezoelectric energy harvesting component includes a cantilever beam, a piezoelectric material and a first magnet. The piezoelectric material is arranged at one end of the cantilever beam, the first magnet is arranged at the other end of the cantilever beam, and the end of the cantilever beam provided with the piezoelectric material is connected to the lower surface of the second support member.

[0012] Furthermore, the piezoelectric enhancement component includes a guide rail, two second springs, two push plates and a second magnet; the guide rail is radially arranged on the second support member along the second support member; the guide rail has a accommodating cavity, and the two second springs, two push plates and the second magnet are all arranged in the accommodating cavity; one end of the two second springs is respectively connected to the two ends of the accommodating cavity, and the other end of the two second springs is respectively connected to each push plate, and the second magnet is movably arranged in the accommodating cavity.

[0013] Furthermore, the inner lining layer and the carbon fiber composite material layer are manufactured by using a fiber winding spherical internal pressure container process.

[0014] Furthermore, the inner lining layer is a rubber inner lining layer or a metal inner lining layer. When the inner lining layer is a rubber inner lining layer, the metal joint is glued to the inner lining layer; when the inner lining layer is a metal inner lining layer, the metal joint is integrally formed or welded to the inner lining layer.

[0015] Compared with the prior art, the invention can achieve the following beneficial effects: 1) The composite shell is made of carbon fiber composite fiber winding, which has corrosion resistance and weather resistance, prolongs the service life of the fiber-wound spherical multi-directional ocean energy harvesting device, and can be used for a long time in all-weather climate environment.

[0016] 2) Due to its light weight, the composite material shell is not only conducive to the miniaturization of the device, but also easier to meet the concealment requirements of specific monitoring sensors.

[0017] 3) By arranging the electromagnetic energy harvesting mechanism and the piezoelectric energy harvesting mechanism circumferentially, it can adapt to the complex and changeable directional excitation in the wave environment, can capture the energy of the waves from multiple directions, and can work effectively in the all-weather climate wave environment.

[0018] 4) The electric energy generated by the electromagnetic energy harvesting mechanism and the piezoelectric energy harvesting mechanism directly powers the sensor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings: Figure 1 is a cross-sectional view of a fiber-wound spherical multi-directional ocean energy harvesting device provided according to an embodiment of the present invention; Figure 2 is a cross-sectional view of a composite material shell provided according to an embodiment of the present invention; Figure 3 is a structural schematic diagram of a first supporting member at a first viewing angle provided by an embodiment of the present invention; Figure 4 is a cross-sectional view of a first support member provided according to an embodiment of the present invention; Figure 5 is a schematic structural diagram of an electromagnetic energy harvesting mechanism provided by an embodiment of the present invention being arranged on a first support member; Figure 6 is a structural schematic diagram of an electromagnetic energy harvesting mechanism provided according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the structure in which a piezoelectric energy harvesting component provided by an embodiment of the present invention is arranged on the lower surface of a first support member; Figure 8 is a schematic structural diagram of a piezoelectric enhancement assembly provided in an embodiment of the present invention being arranged on a second support member; Fig. 9 is a schematic diagram of the structure of a piezoelectric energy harvesting component provided according to an embodiment of the present invention; Fig.10 Schematic diagram of the structure of a piezoelectric enhancement component provided according to an embodiment of the present invention.

[0020] The reference numerals include: 1. composite material shell; 11. spherical shell; 111. lining layer; 112. carbon fiber composite material layer; 113. protective layer; 12. metal joint; 121. through hole; 13. cover plate; 131. disc; 132. boss; 14. sealing ring; 15. interface; 2. first support member; 21. first sector block; 22. first connecting plate; 23. first hole; 24. first preset circle; 25. second preset circle; 26. positioning groove; 3. first Two supporting members; 31. Second fan-shaped block; 32. Second connecting plate; 4. Electromagnetic energy harvesting mechanism; 41. Cylinder; 42. Ring magnet; 43. First spring; 44. Copper wire; 5. Piezoelectric energy harvesting mechanism; 51. Piezoelectric energy harvesting assembly; 511. Cantilever beam; 512. Piezoelectric material; 513. First magnet; 52. Piezoelectric enhancement assembly; 521. Guide rail; 522. Second spring; 523. Push plate; 524. Second magnet; 6. Sensor unit. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the invention more clear, the invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the invention and do not constitute a limitation of the invention.

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0026] like Figure 1 As shown, an embodiment of the present invention provides a fiber-wound spherical multi-directional ocean energy harvesting device, comprising: a composite material shell 1, a first support member 2, a second support member 3, at least one electromagnetic energy harvesting mechanism 4, at least one piezoelectric energy harvesting mechanism 5 and a sensor unit 6.

[0027] The composite shell 1 is used as an outer layer protection and support device, including a spherical shell 11, a metal joint 12, a cover plate 13 and a sealing ring 14. An interface 15 is provided on the spherical shell 11; the spherical shell 11 is provided with an inner lining layer 111, a carbon fiber composite material layer 112 and a protective layer 113 from the inside to the outside. The metal joint 12 is arranged at the interface 15 and connected to the inner lining layer 111; the metal joint 12 is provided with a through hole 121. The cover plate 13 includes a disc 131 and a boss 132 arranged on the disc 131. The outer circle size of the disc 131 is equal to the outer circle size of the interface of the carbon fiber composite material layer 132. The boss 132 is adapted to the through hole 121 and is connected to the through hole 121 by gluing. A threading hole is provided in the center of the cover plate 13. When the sensor unit 6 is arranged outside the composite shell 1, the threading hole is used to arrange the wire to power the sensor unit 6. After the wire is connected, the threading hole is sealed. A sealing groove is provided on the outer circumference of the boss 132, and the sealing ring 14 is arranged in the sealing groove and contacts the inner wall of the through hole 121. The end surface of the metal joint 12 and the interface end surfaces of the lining layer 111, the carbon fiber composite material layer 112 and the protective layer 113 abut against the end surface of the disk 131.

[0028] The inner lining layer 111 and the carbon fiber composite material layer 112 are manufactured by a fiber winding spherical internal pressure vessel process. The inner lining layer 111 is a rubber inner lining layer or a metal inner lining layer. When the inner lining layer 111 is a rubber inner lining layer, the metal joint 12 is glued to the inner lining layer 111; when the inner lining layer 111 is a metal inner lining layer, the metal joint 12 is integrally formed or welded with the metal inner lining layer.

[0029] The protective layer 113 is connected to the outer surface of the carbon fiber composite material layer 112 by gluing, and the cover plate 13 is wrapped in the protective layer 113. The protective layer 113 has waterproof and sealing properties.

[0030] The first support member 2 is arranged in the spherical shell 11, away from the interface 15 and close to the middle position of the spherical shell 11, and the first support member 2 is connected to the inner wall of the spherical shell 11. The first support member 2 includes a first sector block group and a first connecting plate 22. The first sector block group is composed of eight first sector blocks 21. The eight first sector blocks 21 together form a first circular support member. The outer circumference of the first circular support member is connected to the inner surface of the lining layer 111 by gluing. A first hole 23 is provided in the center of the first circular support member; two adjacent first sector blocks 21 of the first sector block group are connected by a first connecting plate 22.

[0031] The first sector block 21 includes two first sector plates and a circular arc vertical plate, the circular arc vertical plate is located between the two first sector plates and connected to the outer circumference of the two first sector plates. When eight first sector blocks 21 are spliced ​​together, they together form a first circular support member with an upper and lower circular plate structure.

[0032] Two positioning grooves 26 are provided at intervals on the lower surface of each first sector block 21 for positioning the piezoelectric energy harvesting assembly 51 .

[0033] In other embodiments, the first circular support member may also be composed of a single-layer first sector-shaped block.

[0034] The second support member 3 is arranged in the spherical shell 11, and is spaced apart from the first support member 2. The second support member 3 is arranged near the interface 15 and is connected to the inner wall of the spherical shell 11. The second support member 3 includes a second sector block group and a second connecting plate 32. The second sector block group is composed of eight second sector blocks 31. The eight second sector blocks 31 together form a second circular support member. The center of the second circular support member is provided with a second hole running through it. Two adjacent second sector blocks 31 of the second sector block group are connected by a second connecting plate 32.

[0035] The eight first sector blocks 21 correspond to the eight second sector blocks 31 one by one.

[0036] In this embodiment, the second hole is equal to the first hole 23 in size, the second sector block 31 is a sector plate, and when the eight second sector blocks 31 are spliced ​​together, they together form a single-layer second circular support member. The outer diameter of the first support member 2 is greater than the outer diameter of the second support member 3.

[0037] In other embodiments, the outer diameter of the first support member 2 may be less than or equal to the outer diameter of the second support member 3, as long as the distance between the first support member 2 and the second support member can ensure the installation of the piezoelectric energy harvesting assembly 51. The first support member 2 is composed of different numbers of first sector blocks 21, and the second support member 3 is composed of different numbers of second sector blocks 31. However, the composition of the piezoelectric energy harvesting assembly 51 and a piezoelectric enhancement assembly 52 together forming a piezoelectric energy harvesting mechanism 5 remains unchanged.

[0038] In this embodiment, the first support member 2 and the second support member 3 are designed as blocks mainly for the convenience of assembly. If the assembly allows, the first support member 2 and the second support member 3 can also be designed as an integrated structure.

[0039] The electromagnetic energy harvesting mechanism 4 is arranged on the first support member 2; the electromagnetic energy harvesting mechanism 4 is arranged on the upper surface of each first sector block, and the electromagnetic energy harvesting mechanism 4 is evenly arranged along the circumferential direction of the first preset circle 24 and the second preset circle 25 of the first support member 2, the first preset circle 24 is close to the first hole 23, and the second preset circle 25 is close to the outer circumference of the first support member 2; the first preset circle 24 and the second preset circle 25 are arranged concentrically with the first hole 23. The number of the electromagnetic energy harvesting mechanisms 4 arranged on the second preset circle 25 is greater than the number of the electromagnetic energy harvesting mechanisms 4 arranged on the first preset circle 24.

[0040] In this embodiment, four electromagnetic energy harvesting mechanisms 4 are evenly arranged on the first support member 2 along the circumferential direction of the first preset circle 24, that is, an electromagnetic energy harvesting mechanism 4 is arranged at a corresponding position in the circumferential direction of the first preset circle 24 for every other first sector block 21. Eight electromagnetic energy harvesting mechanisms 4 are evenly distributed on the first support member 2 along the circumferential direction of the second preset circle 25, that is, an electromagnetic energy harvesting mechanism 4 is arranged at a corresponding position in the second preset circle 25 on each first sector block 21. When setting the electromagnetic energy harvesting mechanism 4, ensure that the electromagnetic energy harvesting mechanism 4 is not arranged at the joint between two adjacent first sector blocks 21.

[0041] The electromagnetic energy collection mechanism 4 includes a cylinder 41, an annular magnet 42, a first spring 43 and a copper wire 44; one end of the cylinder 41 is connected to the first support member 2, and the other end of the cylinder 41 is connected to the inner wall of the spherical shell 11, and the inner surface of the cylinder 41 is polished and smooth. The copper wire 44 is wound around the outer surface of the cylinder 41, and the annular magnet 42 is located inside the cylinder 41 and connected to the cylinder 41 or the inner wall of the spherical shell 11 through the first spring 43. When the external vibrates, the annular magnet 42 moves inside the cylinder 41, causing a change in the magnetic field, thereby generating an induced current in the copper wire 44 to achieve electromagnetic energy collection.

[0042] There are eight piezoelectric energy harvesting mechanisms 5, which are located between the first support member 2 and the second support member 3; each piezoelectric energy harvesting mechanism 5 includes two piezoelectric energy harvesting components 51 and one piezoelectric enhancement component 52, and the two piezoelectric energy harvesting components 51 are arranged on each first sector block 21, and the two piezoelectric energy harvesting components 51 are arranged radially at intervals along the first support member 2, and are fixed in the positioning groove 26 on the lower surface of the first sector block 21 by gluing. Each piezoelectric enhancement component 52 is arranged on the second sector block 31 corresponding to the first sector block 21, and the piezoelectric enhancement component 52 is arranged radially along the second support member 3, and is connected to the upper surface of the second sector block 31 of the second support member 3, and utilizes the nonlinear force between the first magnet 51 and the second magnet 524 to enhance the piezoelectric energy output. The distance between the lower surface of the first support member 2 and the upper surface of the second support member 3 is greater than the length of the piezoelectric energy harvesting component 51.

[0043] The piezoelectric energy harvesting component 51 includes a cantilever beam 511, a piezoelectric material 512 and a first magnet 513. The piezoelectric material 512 is arranged at one end of the cantilever beam 511, and the first magnet 513 is arranged at the other end of the cantilever beam 511. One end of the cantilever beam 511 provided with the piezoelectric material 512 is glued in the positioning groove 26. When the piezoelectric material 512 is subjected to pressure, a voltage will be generated between the two end surfaces, that is, it can convert mechanical energy into electrical energy. The piezoelectric material 512 can be a device with a piezoelectric effect such as PVDF (polyvinylidene fluoride), PZT (lead zirconate titanate), or piezoelectric ceramics.

[0044] The piezoelectric enhancement assembly 52 includes a guide rail 521, two second springs 522, two push plates 523 and a second magnet 524; the guide rail 521 is arranged on the second sector block 31 along the radial direction of the second support member 3, the guide rail 521 is a rectangular parallelepiped, and there is a rectangular accommodating cavity inside the rectangular parallelepiped, and the two second springs 522, the two push plates 523 and the second magnet 524 are all arranged in the rectangular accommodating cavity. One end of the two second springs 522 is respectively connected to the two ends of the rectangular accommodating cavity, and the other end of the two second springs 522 is respectively connected to each push plate 523, and the second magnet 524 is movably arranged in the rectangular accommodating cavity.

[0045] When the second magnet 524 is acted upon by an external force and moves to contact one of the push plates 523 , the elastic force of the corresponding second spring 522 pushes the second magnet 524 back, causing the second magnet 524 to reciprocate in the rectangular accommodation cavity of the guide rail 521 .

[0046] The sensor unit 6 is arranged on the spherical shell 11. The sensor unit 6 is connected to the electromagnetic energy harvesting mechanism 4 and / or the piezoelectric energy harvesting mechanism 5. The sensor unit 6 works by the electric energy generated by the electromagnetic energy harvesting mechanism 4 and / or the piezoelectric energy harvesting mechanism 5.

[0047] In this embodiment, the sensor unit 6 is disposed outside the spherical shell 11, at the interface 15. In other embodiments, the sensor unit 6 can be flexibly configured, and can be disposed inside or outside the spherical shell 11, or even multiple sensor units 6 can be distributed inside and / or outside the spherical shell 11.

[0048] The wave energy harvesting device is placed in a wave environment. The impact of the waves in the vertical direction causes the annular magnet 42 in the electromagnetic energy harvesting mechanism 4 to reciprocate up and down, thereby changing the magnetic flux passing through the copper wire 44 and generating electromagnetic energy. The impact of the waves in the horizontal direction causes the cantilever beam 511 of the piezoelectric energy harvesting component 51 in the piezoelectric energy harvesting mechanism 5 to vibrate, while causing the second magnet 524 of the piezoelectric enhancement component 52 to reciprocate in the rectangular accommodation cavity of the guide rail 521. The piezoelectric material 512 generates piezoelectric energy under the combined action of the waves and the nonlinear magnetic forces of the first magnet 513 and the second magnet 524. The electromagnetic energy harvesting mechanism 4 and the piezoelectric energy harvesting mechanism 5 are evenly arranged in the circumferential direction, and the collected energy is used to power the sensor unit 6.

[0049] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0050] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fiber-wound spherical multi-directional ocean energy harvesting device, characterized in that: include: A composite material shell, the composite material shell comprising a spherical shell, and an interface is provided on the spherical shell; A first support member and a second support member, wherein the first support member and the second support member are both located in the spherical shell, the first support member is arranged away from the interface and connected to the inner wall of the spherical shell; the second support member is arranged close to the interface and connected to the inner wall of the spherical shell; At least one electromagnetic energy harvesting mechanism, which is arranged on the first support member; the electromagnetic energy harvesting mechanism comprises a cylinder, an annular magnet, a first spring and a copper wire; one end of the cylinder is connected to the first support member, and the other end of the cylinder is connected to the inner wall of the spherical shell; the copper wire is wound around the outer surface of the cylinder, the annular magnet is located inside the cylinder, and is connected to the cylinder or the inner wall of the spherical shell through the first spring; when external vibration occurs, the annular magnet moves inside the cylinder, causing a change in the magnetic field, thereby generating an induced current in the copper wire to achieve electromagnetic energy harvesting; At least one piezoelectric energy harvesting mechanism, the piezoelectric energy harvesting mechanism is located between the first support member and the second support member; the piezoelectric energy harvesting mechanism includes a piezoelectric enhancement component and two piezoelectric energy harvesting components, the two piezoelectric energy harvesting components are arranged radially and spaced apart from each other along the first support member, and are connected to the lower surface of the first support member; the piezoelectric enhancement component is arranged radially along the second support member, is connected to the upper surface of the second support member, and is located directly below the two piezoelectric energy harvesting components to enhance the piezoelectric energy output; A sensor unit, wherein the sensor unit is arranged on the spherical shell, the sensor unit is connected to the electromagnetic energy harvesting mechanism and / or the piezoelectric energy harvesting mechanism, and the sensor unit works through the electric energy generated by the electromagnetic energy harvesting mechanism and / or the piezoelectric energy harvesting mechanism.

2. The fiber-wound spherical multi-directional ocean energy harvesting device according to claim 1 is characterized in that: The composite material shell further comprises a metal joint, a cover plate and a sealing ring; the spherical shell is provided with an inner lining layer, a carbon fiber composite material layer and a protective layer in sequence from the inside to the outside; the metal joint is arranged at the interface and connected to the inner lining layer; the metal joint is provided with a through hole; The cover plate includes a disc and a boss arranged on the disc, the outer circle size of the disc is equal to the outer circle size of the interface of the carbon fiber composite material layer, and the boss is adapted to the through hole; a sealing groove is provided on the outer circumference of the boss, and the sealing ring is arranged in the sealing groove and abuts against the inner wall of the through hole.

3. The fiber-wound spherical multi-directional ocean energy harvesting device according to claim 1 is characterized in that: The first support member includes a first sector block group and a first connecting plate. The first sector block group together forms a first circular support member. A first through hole is provided at the center of the first circular support member. Two adjacent first sector blocks of the first sector block group are connected via the first connecting plate.

4. The fiber-wound spherical multi-directional ocean energy harvesting device according to claim 3 is characterized in that: The electromagnetic energy harvesting mechanism is provided on the upper surface of each of the first sector blocks, and the electromagnetic energy harvesting mechanism is evenly arranged along the circumferential direction of the first preset circle and the second preset circle of the first support member, and the first preset circle and the second preset circle are concentrically arranged with the first hole; the first preset circle is close to the first hole, and the second preset circle is close to the outer circumference of the first support member; the number of the electromagnetic energy harvesting mechanisms arranged on the second preset circle is greater than the number of the electromagnetic energy harvesting mechanisms arranged on the first preset circle.

5. The fiber-wound spherical multi-directional ocean energy harvesting device according to claim 3 is characterized in that: The second support member includes a second sector block group and a second connecting plate. The second sector block group together forms a second circular support member. A second hole is provided through the center of the second circular support member. Two adjacent second sector blocks of the second sector block group are connected via the second connecting plate.

6. The fiber-wound spherical multi-directional ocean energy harvesting device according to claim 1 is characterized in that: The piezoelectric energy harvesting component includes a cantilever beam, a piezoelectric material and a first magnet. The piezoelectric material is arranged at one end of the cantilever beam, the first magnet is arranged at the other end of the cantilever beam, and the end of the cantilever beam provided with the piezoelectric material is connected to the lower surface of the second support member.

7. The fiber-wound spherical multi-directional ocean energy harvesting device according to claim 6, characterized in that: The piezoelectric enhancement component includes a guide rail, two second springs, two push plates and a second magnet; the guide rail is radially arranged on the second support member along the second support member; the guide rail has a accommodating cavity, and the two second springs, the two push plates and the second magnet are all arranged in the accommodating cavity; one end of the two second springs is respectively connected to the two ends of the accommodating cavity, and the other end of the two second springs is respectively connected to each push plate, and the second magnet is movably arranged in the accommodating cavity.

8. The fiber-wound spherical multi-directional ocean energy harvesting device according to claim 2 is characterized in that: The inner lining layer and the carbon fiber composite material layer are manufactured by adopting a fiber winding spherical internal pressure container process.

9. The fiber-wound spherical multi-directional ocean energy harvesting device according to claim 2, characterized in that: The inner lining layer is a rubber inner lining layer or a metal inner lining layer. When the inner lining layer is a rubber inner lining layer, the metal joint is glued to the inner lining layer; when the inner lining layer is a metal inner lining layer, the metal joint is integrally formed or welded with the inner lining layer.

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