CN117060674B - Electromagnetic power generation device based on bionic fluctuation fin - Google Patents

Electromagnetic power generation device based on bionic fluctuation fin Download PDF

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Publication number
CN117060674B
CN117060674B CN202311310897.3A CN202311310897A CN117060674B CN 117060674 B CN117060674 B CN 117060674B CN 202311310897 A CN202311310897 A CN 202311310897A CN 117060674 B CN117060674 B CN 117060674B
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fin
bionic
central shaft
power generation
device based
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CN117060674A (en
Inventor
张晓宇
张动
檀盼龙
李寿鹏
徐世晖
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Nankai University
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Nankai University
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K35/00Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/02Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807Rotary generators
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/30Energy from the sea, e.g. using wave energy or salinity gradient

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The invention relates to the technical field of energy, in particular to an electromagnetic power generation device based on bionic fluctuation fins. Electromagnetic power generation device based on bionical undulant fin includes: a bracket; the two ends of the central shaft are fixed on the bracket; the stator is fixed on the central shaft, the rotors are rotatably fixed on the central shaft, the rotors comprise magnet arrays, the stators comprise coil arrays, at least one stator is arranged between two adjacent rotors, and a gap is arranged between the adjacent rotors and the stators; and the bionic fluctuation fin is connected with the rotor and drives the magnet array to rotate around the central shaft. The electromagnetic generating set based on the bionic fluctuation fin has small noise, small disturbance to the underwater environment and environment friendliness, and meanwhile, the electromagnetic generating set does not need a complex transmission speed increasing system, and has a simpler and lighter structure; the energy utilization rate is high, the power generation efficiency is high, and the power density is high.

Description

Electromagnetic power generation device based on bionic fluctuation fin
Technical Field
The invention relates to the technical field of energy, in particular to an electromagnetic power generation device based on bionic fluctuation fins.
Background
The renewable energy sources comprise wind energy, solar energy, ocean energy and the like, wherein the ocean environment is filled with various energy sources comprising wave energy, tidal energy, ocean current energy and the like, the ocean energy is abundant in storage and wide in distribution, is not influenced by environmental factors such as time, weather and the like, and is a renewable clean energy source with great development prospect.
Energy harvesting refers to the process of capturing energy from the environment and converting it into electrical energy. The current ocean energy harvesting mechanism mainly comprises three forms: piezoelectric, triboelectric, and electromagnetic, using an electromagnetic mechanism to generate electricity are a popular way of energy harvesting. However, the current electromagnetic power generation device mainly comprises a propeller type generator, which is generally heavy, low in energy utilization rate and large in noise and ecological environment disturbance.
Disclosure of Invention
The present invention is directed to solving at least one of the technical problems existing in the related art. Therefore, the electromagnetic generating set based on the bionic fluctuation fin is low in noise, small in disturbance to the underwater environment and environment-friendly, does not need a complex transmission speed increasing system, and is simpler in structure and lighter; the energy utilization rate is high, the power generation efficiency is high, and the power density is high.
In one aspect of the present invention, there is provided an electromagnetic power generation device based on a bionic fluctuating fin, the electromagnetic power generation device based on a bionic fluctuating fin including:
a bracket;
the two ends of the central shaft are fixed on the bracket;
the stator is fixed on the central shaft, the rotors are rotatably fixed on the central shaft, the rotors comprise magnet arrays, the stators comprise coil arrays, at least one stator is arranged between two adjacent rotors, and a gap is arranged between the adjacent rotors and the stators;
and the bionic fluctuation fin is connected with the rotor and drives the magnet array to rotate around the central shaft.
Further, the distance between two adjacent rotors is one quarter wavelength.
Further, one stator, one rotor, and one stator, which are sequentially arranged in the extending direction along the central axis, form one electromagnetic power generation unit, and a plurality of the electromagnetic power generation units are sequentially arranged on the central axis.
Further, the rotor further includes: the magnet frame comprises an inner ring and an outer ring which are concentrically arranged, and the magnet array is embedded between the inner ring and the outer ring;
the bearing is embedded in the inner ring and is fixed on the central shaft;
the fin bones are arranged on the outer surface of the outer ring and are connected with the bionic fluctuation fins;
the stator further includes: and the coil frame is fixed on the central shaft, and the coil array is embedded into the coil frame.
Further, the number of the fin bones on the outer ring surface of each magnet frame is at least two, and the fin bones are distributed at equal intervals along the circumference of the outer ring.
Further, the magnet frame and the fin bone are an integrated 3D printing structure.
Further, the bionic wave fin is made of rubber.
Further, the coil array is formed by encircling 4-8 fan-shaped coils;
the magnet array is formed by encircling 4-8 sector magnets, and the polarities of two adjacent sector magnets are opposite.
In another aspect of the present invention, the present invention provides a method for preparing the electromagnetic power generation device based on the bionic fluctuating fin, which comprises:
fixing a plurality of stators on a central shaft, rotatably fixing a plurality of rotors on the central shaft, arranging at least one stator between two adjacent rotors, and arranging a gap between the adjacent rotors and the stator;
and after the bionic fluctuation fin is connected with the rotor, fixing the two ends of the central shaft on a bracket to obtain the electromagnetic generating device based on the bionic fluctuation fin.
Further, the preparation method comprises the following steps:
embedding a magnet array between an inner ring and an outer ring of a magnet frame, embedding a bearing in the inner ring, and fixing the bearing on the central shaft;
embedding a coil array into a coil frame, and fixing the coil frame on the central shaft;
connecting a fin bone on the outer surface of the outer ring with the bionic fluctuation fin;
fixing two ends of the central shaft on the bracket to obtain the electromagnetic generating device based on the bionic fluctuation fin;
and/or, the preparation method of the bionic fluctuating fin comprises the following steps: and forming an arc-shaped structure by 3D printing of the rubber material, and forming the bionic fluctuation fin by applying pretightening force to the arc-shaped structure.
The above technical solutions in the embodiments of the present invention have at least one of the following technical effects:
the flow of the seawater pushes the bionic fluctuation fin to generate fluctuation, the bionic fluctuation fin fluctuates to drive the magnet array in the rotor to rotate reciprocally around the central shaft, the magnet array and the coil array rotate relatively, and induction current can be generated in the closed coil according to Faraday electromagnetic induction law, so that electric energy is output. Compared with the traditional propeller type generator, the electromagnetic generating set based on the bionic fluctuation fin has the advantages of small noise, small disturbance to the underwater environment, environment friendliness, no need of a complex transmission speed increasing system, and simpler and lighter structure; the invention can fully utilize the magnetic fields of the two pole faces of the magnet array, and has high energy utilization rate, high power generation efficiency and high power density.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic three-dimensional structure of an electromagnetic power generation device based on bionic fluctuation fins.
Fig. 2 is a front view of an electromagnetic power generation device based on bionic fluctuating fins.
Fig. 3 is a schematic three-dimensional structure of an electromagnetic power generation unit according to the present invention.
Fig. 4 is a schematic diagram of an explosion structure of an electromagnetic power generation unit according to the present invention.
Fig. 5 is a schematic three-dimensional structure of a coil array and a magnet array according to the present invention.
Fig. 6 is a front view of a coil array and a magnet array provided by the present invention.
Fig. 7 is a schematic diagram of a preparation flow of a bionic fluctuating fin.
Reference numerals:
1. a bracket; 2. a central shaft; 3. a rotor; 30. a magnet array; 31. a magnet frame; 311. an inner ring; 312. an outer ring; 32. a bearing; 33. a fin bone; 34. a sector magnet; 4. a stator; 40. a coil array; 41. a coil frame; 42. a fan-shaped coil; 5. bionic wave fins; 51. an arc-shaped structure; 6. an electromagnetic power generation unit.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
In one aspect of the present invention, referring to fig. 1 to 6, the present invention provides an electromagnetic power generation device based on a bionic fluctuating fin, the electromagnetic power generation device based on the bionic fluctuating fin including: a bracket 1; the two ends of the central shaft 2 are fixed on the bracket 1; a plurality of rotors 3 and a plurality of stators 4, the stators 4 are fixed on the central shaft 2, the rotors 3 are rotatably fixed on the central shaft 2, the rotors 3 comprise a magnet array 30, the stators 4 comprise a coil array 40, at least one stator 4 is arranged between two adjacent rotors 3, and a gap is arranged between the adjacent stators 4 and the rotors 3; the bionic fluctuation fin 5 is connected with the rotor 3, and drives the magnet array 30 to rotate around the central shaft 2.
The flow of the seawater pushes the bionic fluctuation fin to generate fluctuation, the bionic fluctuation fin fluctuates to drive the magnet array in the rotor to rotate reciprocally around the central shaft, the magnet array and the coil array rotate relatively, and induction current can be generated in the closed coil according to Faraday electromagnetic induction law, so that electric energy is output. Compared with the traditional propeller type generator, the electromagnetic generating set based on the bionic fluctuation fin has the advantages of small noise, small disturbance to the underwater environment, environment friendliness, no need of a complex transmission speed increasing system, and simpler and lighter structure; the invention can fully utilize the magnetic fields of the two pole faces of the magnet array, the magnet array and the coil array are compactly arranged, the space utilization rate is high, the energy utilization rate is high, the power generation efficiency is high, and the power density is high.
In some embodiments of the invention, referring to fig. 1, 2, 3 and 4, the rotor further comprises: a magnet frame 31, the magnet frame 31 including an inner ring 311 and an outer ring 312 concentrically arranged, the magnet array 30 being embedded between the inner ring 311 and the outer ring 312; a bearing 32, the bearing 32 being embedded in the inner ring 311, the bearing 32 being fixed on the central shaft 2; a fin bone 33, wherein the fin bone 33 is disposed on the outer surface of the outer ring 312, and the fin bone 33 is connected with the bionic wave fin 5; the stator 4 further includes: a coil frame 41, the coil frame 41 is fixed on the central shaft 2, and the coil array 40 is embedded in the coil frame 41. From this, bionical undulant fin passes through the fin bone and is connected with the magnet array in the embedded magnet frame, and the flow of sea water promotes bionical undulant fin and produces undulant, and bionical undulant fin is undulant and then drives the fin bone swing, and the fin bone swing makes the magnet array rotate reciprocally for the coil array, produces electric current and then output electric energy in closed coil.
It will be appreciated that there is at least one fin on the outer surface of each outer race.
In some embodiments of the invention, the pitch of adjacent two of the rotors is one quarter wavelength. Thus, the fin bone may be configured at the peak, trough, and zero positions such that the fin bone may produce a more complete waveform.
It should be noted that, the distance between two adjacent rotors is a quarter wavelength, the distance between five continuous rotors is a whole wavelength, the five rotors can generate a sine wave under the drive of the bionic fluctuation fin, and the wavelength of the sine wave is determined according to the distance between the rotors in the actual use process.
In some embodiments of the invention, the magnet frame is an integrated 3D printed structure with the fin bone. Therefore, the structure is simple, easy to realize and firm.
In some embodiments of the invention, the biomimetic fluctuating fin is bolted to the fin bone.
In some embodiments of the present invention, the material of the bionic fluctuating fin is a soft super-elastic material, and in some embodiments of the present invention, the material of the bionic fluctuating fin includes rubber. Therefore, the bionic fluctuation fin has a good waterproof effect, can fluctuate along with the flowing of water, and has a good effect of driving the magnet array to rotate and swing.
In some preferred embodiments of the present invention, referring to fig. 1 and 2, the number of the fins 33 on the surface of the outer ring 312 of each magnet frame 31 is at least two (for example, two, three, four, five or six, etc.), and the fins 33 are distributed at equal intervals along the circumference of the outer ring 312, so that at least two bionic fluctuation fins 5 are correspondingly disposed on the periphery of each magnet frame 31, each bionic fluctuation fin 5 is connected with the corresponding fins 33 on the periphery of the plurality of magnet frames 31, and the at least two bionic fluctuation fins 5 are disposed at intervals, so that the effect of driving the magnet array 30 to rotate by the bionic fluctuation fins 5 is better, and the power generation effect and the energy collection effect are better.
In some embodiments of the present invention, referring to fig. 1, 2, 3 and 4, one stator 4, one rotor 3 and one stator 4, which are sequentially arranged in an extending direction along the central axis, form one electromagnetic power generation unit 6, and a plurality of the electromagnetic power generation units 6 are sequentially arranged on the central axis 2. Therefore, in the electromagnetic power generation unit, coil arrays are arranged on two sides of the magnet array in the rotor to form a sandwich structure, so that the magnetic fields of two pole faces of the magnet array can be fully utilized, the energy utilization rate is high, and the power generation efficiency is high; the magnet array and the coil array are compactly distributed, the space utilization rate is high, and the overall power density is high.
In some embodiments of the present invention, referring to fig. 3 and 4, an electromagnetic power generation unit 6 includes a coil array 40, a magnet array 30, and a coil array 40 sequentially arranged, the magnet array 30 being embedded between the inner ring 311 and the outer ring 312; the bearing 32 is embedded in the inner ring 311, the fin 33 is disposed on the outer surface of the outer ring 312, and the coil array 40 is embedded in the coil frame 41.
In some embodiments of the invention, the number of electromagnetic generating units is 4n+1, where n is the complete wave number, and n is an integer greater than or equal to 1.
In some embodiments of the present invention, referring to fig. 1, 2 and 3, nine electromagnetic power generation units 6 are sequentially arranged in an extending direction along the central axis 2, three fin bones 33 are distributed at equal intervals on the periphery of a magnet frame 31 in each electromagnetic power generation unit 6, and nine corresponding fin bones 33 in the nine electromagnetic power generation units 6 are respectively arranged on peaks, troughs and zero points of a complete waveform at equal intervals in an initial state.
It should be noted that, there is a certain gap between adjacent rotors and stators; the two adjacent stators can be in direct contact, or a certain gap can be formed between the two adjacent stators.
In some embodiments of the present invention, referring to fig. 5 and 6, the coil array 40 is formed by surrounding 4 to 8 (e.g. 4, 5, 6, 7, 8, etc.) fan-shaped coils 42; the magnet array 30 is formed by encircling 4 to 8 (for example, 4, 5, 6, 7, 8, etc.) sector magnets 34, and the polarities of the adjacent two sector magnets 34 are opposite. Therefore, the magnet array adopts the alternative arrangement configuration of the N-S poles of the magnet polarity, so that the magnetic flux density is suddenly changed in the coil, and the energy harvesting effect is enhanced.
In some embodiments of the present invention, the workflow of the electromagnetic power generation device based on the bionic fluctuating fin in the present invention is as follows: the flow of the seawater pushes the bionic fluctuation fin to generate fluctuation, the bionic fluctuation fin fluctuates to drive the fin to swing, the fin swings to enable the magnet array of the electromagnetic generating unit to generate reciprocating rotation, so that the magnet array and the coil array generate relative rotation, induced current can be generated in the closed coil according to Faraday electromagnetic induction law, and electric energy is output.
In another aspect of the present invention, the present invention provides a method for preparing the electromagnetic power generation device based on the bionic fluctuating fin, which comprises: fixing a plurality of stators on a central shaft, rotatably fixing a plurality of rotors on the central shaft, arranging at least one stator between two adjacent rotors, and arranging a gap between the adjacent rotors and the stator; and after the bionic fluctuation fin is connected with the rotor, fixing the two ends of the central shaft on a bracket to obtain the electromagnetic generating device based on the bionic fluctuation fin.
It will be appreciated that the rotor, stator, coil array, magnet array, central shaft, biomimetic fluctuation fins and support are consistent with the previous description and will not be repeated here.
In some embodiments of the present invention, a method for manufacturing an electromagnetic power generation device based on a biomimetic fluctuation fin includes: embedding a magnet array between an inner ring and an outer ring of a magnet frame, embedding a bearing in the inner ring, and fixing the bearing on the central shaft; embedding a coil array into a coil frame, and fixing the coil frame on the central shaft; connecting a fin bone on the outer surface of the outer ring with the bionic fluctuation fin; and fixing the two ends of the central shaft on the bracket to obtain the electromagnetic generating device based on the bionic fluctuation fin.
In some embodiments of the present invention, referring to fig. 7, the method for preparing the bionic fluctuating fin includes: and forming an arc-shaped structure 51 by 3D printing of the rubber material, and forming the bionic fluctuation fin 5 by applying pretightening force to the arc-shaped structure 51.
In some embodiments of the present invention, a method for manufacturing an electromagnetic power generation device based on a bionic fluctuating fin includes:
1. the bionic fluctuation fin is made of rubber materials, is printed into an arc-shaped structure through 3D, and is molded into a fluctuation shape through pre-tightening force in advance.
2. 3 lugs are distributed on the periphery of the outer ring of the magnet frame at equal intervals to form a fin bone, and the magnet frame and the fin bone form an integrated 3D printing structure; the magnet array is embedded between the outer ring and the inner ring of the magnet frame, and is encapsulated by adopting a waterproof glue coating, and the bearing is embedded into the inner ring of the magnet frame to form a rotor; the coil array is embedded into the coil frame and is encapsulated by waterproof glue coating to form the stator. The electromagnetic generating unit comprises a sandwich type configuration formed by a stator, a rotor and a stator;
sequentially mounting 9 electromagnetic power generation units on a central shaft, and enabling the magnet frame with the magnet array to freely rotate on the central shaft through a bearing; while the coil former with the coil array cannot rotate.
3. Each bionic fluctuation fin is respectively mounted on 9 fin bones corresponding to 9 electromagnetic power generation units through bolts, and three bionic fluctuation fins are formed by total mounting. In an initial state, 9 fin bones corresponding to one bionic fluctuation fin are respectively arranged on the wave crest, the wave trough and the zero point of the complete waveform, and are arranged at equal intervals.
4. The central shaft assembled with the bionic fluctuation fin and the electromagnetic generating unit is mounted on the bracket and fastened through threads.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. Electromagnetic power generation device based on bionical fluctuation fin, characterized by, include:
a bracket;
the two ends of the central shaft are fixed on the bracket;
the stator is fixed on the central shaft, the rotors are rotatably fixed on the central shaft, the rotors comprise magnet arrays, the stators comprise coil arrays, at least one stator is arranged between two adjacent rotors, and a gap is arranged between the adjacent rotors and the stators;
the bionic fluctuation fin is connected with the rotor and drives the magnet array to rotate around the central shaft;
one stator, one rotor and one stator which are sequentially arranged in the extending direction along the central shaft form one electromagnetic power generation unit, and a plurality of electromagnetic power generation units are sequentially arranged on the central shaft;
the rotor further includes: the magnet frame comprises an inner ring and an outer ring which are concentrically arranged, and the magnet array is embedded between the inner ring and the outer ring;
the bearing is embedded in the inner ring and is fixed on the central shaft;
the fin bones are arranged on the outer surface of the outer ring and are connected with the bionic fluctuation fins;
the stator further includes: and the coil frame is fixed on the central shaft, and the coil array is embedded into the coil frame.
2. The electromagnetic power generation device based on bionic fluctuating fins according to claim 1, characterized in that the distance between two adjacent rotors is a quarter wavelength, and the distance between five rotors in succession is one full wavelength.
3. The electromagnetic power generation device based on bionic fluctuating fins according to claim 1, wherein the number of fin bones on the outer ring surface of each magnet frame is at least two, and the fin bones are distributed at equal intervals along the circumference of the outer ring.
4. The electromagnetic power generation device based on bionic wave fins according to claim 1 or 3, wherein the magnet frame and the fin bone are of an integrated 3D printing structure.
5. The electromagnetic power generation device based on the bionic fluctuating fin according to claim 1, wherein the material of the bionic fluctuating fin comprises rubber.
6. The electromagnetic generating device based on the bionic fluctuation fin according to claim 1, wherein the coil array is formed by surrounding 4-8 fan-shaped coils;
the magnet array is formed by encircling 4-8 sector magnets, and the polarities of two adjacent sector magnets are opposite.
7. The method for manufacturing the electromagnetic generating device based on the bionic fluctuation fin according to any one of claims 1 to 6, comprising the following steps:
fixing a plurality of stators on a central shaft, rotatably fixing a plurality of rotors on the central shaft, arranging at least one stator between two adjacent rotors, and arranging a gap between the adjacent rotors and the stator;
after the bionic fluctuation fin is connected with the rotor, fixing two ends of the central shaft on a bracket to obtain the electromagnetic generating device based on the bionic fluctuation fin;
embedding a magnet array between an inner ring and an outer ring of a magnet frame, embedding a bearing in the inner ring, and fixing the bearing on the central shaft;
embedding a coil array into a coil frame, and fixing the coil frame on the central shaft;
connecting a fin bone on the outer surface of the outer ring with the bionic fluctuation fin;
and fixing the two ends of the central shaft on the bracket to obtain the electromagnetic generating device based on the bionic fluctuation fin.
8. The method for manufacturing an electromagnetic power generation device based on a bionic fluctuating fin according to claim 7, characterized in that the method for manufacturing the bionic fluctuating fin comprises the following steps: and forming an arc-shaped structure by 3D printing of the rubber material, and forming the bionic fluctuation fin by applying pretightening force to the arc-shaped structure.
CN202311310897.3A 2023-10-11 2023-10-11 Electromagnetic power generation device based on bionic fluctuation fin Active CN117060674B (en)

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