CN110848073B - Multistable electromagnetic type sea wave energy absorption unit and parallel type sea wave energy absorber - Google Patents
Multistable electromagnetic type sea wave energy absorption unit and parallel type sea wave energy absorber Download PDFInfo
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- CN110848073B CN110848073B CN201910959673.2A CN201910959673A CN110848073B CN 110848073 B CN110848073 B CN 110848073B CN 201910959673 A CN201910959673 A CN 201910959673A CN 110848073 B CN110848073 B CN 110848073B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations 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
- F03B13/14—Adaptations 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 using wave energy
- F03B13/141—Adaptations 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 using wave energy with a static energy collector
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Abstract
The invention belongs to the technical field of sea wave energy utilization, and particularly relates to a multistable electromagnetic type sea wave energy absorption unit and a parallel type sea wave energy absorber, wherein the multistable electromagnetic type sea wave energy absorption unit comprises a shell, an energy capturing mechanism, an energy conversion mechanism and a multistable switching trigger mechanism, the energy capturing mechanism is arranged to capture sea wave energy and convert the sea wave energy into kinetic energy, the energy capturing mechanism is connected to the energy conversion mechanism, the energy conversion mechanism is arranged in the shell, the multistable switching trigger mechanism is connected to the energy conversion mechanism, the multistable switching trigger mechanism maintains the stable state of the energy conversion mechanism under each working condition and improves the magnetic flux change rate of electromagnetic induction during switching between different stable states, according to the multistable electromagnetic type sea wave energy absorption unit of the embodiment of the invention, the sea wave energy is converted into electric energy, uninterrupted electric power output can be realized for the utilization of the, the multi-stable state switching triggering mechanism realizes that the energy conversion mechanism is triggered to respond quickly when the wave speed is relatively low.
Description
Technical Field
The invention belongs to the technical field of wave energy utilization, and particularly relates to a multistable electromagnetic type wave energy absorption unit and a parallel type wave energy absorber.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
The 21 st century is a marine century, the vigorous development and utilization of marine resources becomes important force for promoting the development of economic society, the problem of continuous power utilization of offshore facilities, particularly offshore infrastructures, becomes an important factor for restricting the development and utilization activities of oceans, solar power generation is common in the prior art, has the advantages of cleanness, environmental protection and the like, is strictly limited by meteorological conditions, particularly is greatly influenced by temperature difference between day and night and illumination, and does not have 24-hour power generation capacity.
Ocean wave energy is an energy source with large reserve and high energy flux density and is not limited by meteorological conditions, so that the real-time collection of wave information plays a crucial role in better development and utilization of the wave energy, and durable, stable and efficient power supply can be provided for offshore infrastructure.
Disclosure of Invention
The invention aims to at least solve the problem of how to generate electricity by using ocean wave energy. The purpose is realized by the following technical scheme:
the invention provides a multistable electromagnetic wave energy absorption unit on the first aspect, which comprises a shell, an energy capturing mechanism, an energy conversion mechanism and a multistable switching trigger mechanism, said energy capturing mechanism configured to capture and convert wave energy into kinetic energy, said energy capturing mechanism connected to said energy conversion mechanism, the energy conversion mechanism is arranged in the shell, the multistable switching trigger mechanism is connected to the energy conversion mechanism, wherein the energy capturing mechanism is configured to receive the kinetic energy and move relative to the energy transforming mechanism, the energy conversion mechanism converts the kinetic energy into electric energy, and the multistable switching trigger mechanism is set to maintain the stable state of the energy conversion mechanism under each working condition through the acting force of the magnet and improve the magnetic flux change rate of electromagnetic induction during switching between different stable states.
According to the multistable electromagnetic wave energy absorption unit of the embodiment of the invention, the wave energy is converted into the kinetic energy through the energy capture mechanism and the energy conversion mechanism, and the kinetic energy is converted to generate electricity, uninterrupted power output can be realized for the utilization of the wave energy, the multistable electromagnetic wave energy absorption unit is not influenced by day and night temperature difference and illumination, has the generating potential of 24 hours, provides durable, stable and efficient power supply for offshore infrastructure, has simple structure, small number of total parts, convenient disassembly and assembly, convenient carrying and transportation, strong maneuverability, small occupied space, convenient operation and wide applicability, maintains the stable state of the energy conversion mechanism under each working condition through the acting force of the magnet through the arrangement of the multistable switching trigger mechanism, switches among different stable states, can also improve the magnetic flux change rate of electromagnetic induction during switching, and realizes that the wave speed is slower, the quick response of the energy conversion mechanism is triggered, the optimal working state can be achieved in various wave height environments, and the stability of output electric energy is guaranteed.
In addition, the multistable electromagnetic wave energy absorption unit according to the embodiment of the invention can also have the following additional technical characteristics:
in some embodiments of the invention, the energy conversion mechanism comprises:
the first fixing frame is arranged in the shell;
the moving assembly is connected in the first fixing frame, and the energy capturing mechanism is connected to the moving assembly;
the conversion assembly is connected to the first fixing frame, the movement assembly receives the kinetic energy and moves relative to the first fixing frame, and the conversion assembly is arranged to convert the kinetic energy into electric energy.
In some embodiments of the invention, the motion assembly comprises:
the second fixing frame is arranged in the first fixing frame, and the energy capturing mechanism is connected with the second fixing frame;
a moving magnet coupled to the second mount, the moving magnet configured to receive the kinetic energy and move relative to the conversion assembly.
In some embodiments of the invention, the conversion assembly comprises:
a coil disposed on the first mount, the coil configured to move relative to the moving magnet to cut a magnetic induction line to generate electrical energy;
and the rectifying circuit is electrically connected with the coil.
In some embodiments of the invention, the number of coils is equal to or less than the number of moving magnets.
In some embodiments of the invention, the capture mechanism comprises:
a float member connected to the second mount, the float member configured to capture wave energy and drive the moving magnet to move relative to the coil.
In some embodiments of the invention, the fixed magnet and the moving magnet have the same magnetic pole direction.
In some embodiments of the present invention, the multistable switching trigger mechanism is disposed between the housing and the first mount, the multistable switching trigger mechanism comprising:
the third fixing frame is connected to the shell;
and the fixed magnet is connected to the third fixing frame and is arranged to be matched with the moving magnet so as to drive the floating piece to move and then to be stable.
In some embodiments of the invention, the multistable electromagnetic wave energy absorption unit further comprises an energy storage mechanism arranged in the housing, the energy storage mechanism is electrically connected with the rectifying circuit and is configured to store the electric energy.
The invention provides a parallel type sea wave energy absorber, which comprises a fixed seat and a plurality of multi-stable state electromagnetic type sea wave energy absorbing units in any one technical scheme, wherein the multi-stable state electromagnetic type sea wave energy absorbing units are connected in parallel and then are arranged on the fixed seat, the central connecting lines of the multi-stable state electromagnetic type sea wave energy absorbing units are polygonal, and the electric energy generated by the multi-stable state electromagnetic type sea wave energy absorbing units after being connected in parallel is analyzed to obtain ocean information.
The parallel type sea wave energy absorber of the embodiment of the invention has the same advantages as the multistable electromagnetic type sea wave energy absorption units in any technical scheme, and is not repeated herein, in addition, a fixing seat can ensure that the multistable electromagnetic type sea wave energy absorption units do not change relatively, the multistable electromagnetic type sea wave energy absorption units are connected in parallel and then output electric energy in a gathering way to improve output, the parallel type sea wave energy absorber is anchored on the sea floor, the time when the sea waves reach the multistable electromagnetic type sea wave energy absorption units has a front-back sequence, each multistable electromagnetic type sea wave energy absorption unit generates fluctuating electric energy when working, the sea wave environments in which the multistable electromagnetic type sea wave energy absorption units are connected in parallel are the same but are not completely synchronous under the influence of the sea waves, and response time difference exists, so that mutual complementation is realized while output is increased in parallel, the length is eliminated, and the output, based on the three multi-stable-state electromagnetic wave energy absorption units connected in parallel, the waveform and the response time difference of the voltage signals generated by the three multi-stable-state electromagnetic wave energy absorption units are analyzed, a certain ocean information monitoring function can be realized, and information such as wave speed, acceleration, wave height and direction of waves can be acquired.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic perspective view of a parallel type wave energy absorber according to an embodiment of the invention;
FIG. 2 is a schematic perspective view of the energy conversion mechanism and the multi-stable switching trigger mechanism shown in FIG. 1;
FIG. 3 is a cross-sectional view of the multistable electromagnetic wave energy absorption unit shown in FIG. 1;
fig. 4 is an enlarged schematic view of a portion a shown in fig. 3.
Reference numerals:
1. a multistable electromagnetic wave energy absorption unit; 11. an energy capturing mechanism; 12. an energy conversion mechanism; 13. a multistable switching trigger mechanism; 14. an energy storage mechanism; 15. a housing; 111. a float member; 112. a fourth fixing frame; 113. a first fixing plate; 114. a second fixing plate; 121. a first fixing frame; 122. a motion assembly; 123. a coil; 131. a third fixing frame; 132. a fixed magnet; 133. a third fixing plate; 134. a fourth fixing plate; 1221. a second fixing frame; 1222. a moving magnet;
2. a fixed seat.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1-4, a multistable electromagnetic wave energy absorbing unit according to an embodiment of the invention includes a housing, an energy capturing mechanism, an energy converting mechanism, and a multistable switching triggering mechanism, the energy capturing mechanism is configured to capture wave energy and convert the wave energy into kinetic energy, the energy capturing mechanism is connected to the energy converting mechanism, the energy converting mechanism is disposed in the housing, and the multistable switching triggering mechanism is connected to the energy converting mechanism, wherein the energy capturing mechanism is configured to receive the kinetic energy and move relative to the energy converting mechanism, the energy converting mechanism converts the kinetic energy into electric energy, and the multistable switching triggering mechanism is configured to maintain a stable state of the energy converting mechanism under each working condition through a magnet acting force and improve a magnetic flux change rate of electromagnetic induction when switching between different stable states.
According to the multistable electromagnetic wave energy absorption unit of the embodiment of the invention, the wave energy is converted into the kinetic energy through the energy capture mechanism and the energy conversion mechanism, and the kinetic energy is converted to generate electricity, uninterrupted power output can be realized for the utilization of the wave energy, the multistable electromagnetic wave energy absorption unit is not influenced by day and night temperature difference and illumination, has the generating potential of 24 hours, provides durable, stable and efficient power supply for offshore infrastructure, has simple structure, small number of total parts, convenient disassembly and assembly, convenient carrying and transportation, strong maneuverability, small occupied space, convenient operation and wide applicability, maintains the stable state of the energy conversion mechanism under each working condition through the acting force of the magnet through the arrangement of the multistable switching trigger mechanism, switches among different stable states, can also improve the magnetic flux change rate of electromagnetic induction during switching, and realizes that the wave speed is slower, the quick response of the energy conversion mechanism is triggered, the optimal working state can be achieved in various wave height environments, and the stability of output electric energy is guaranteed.
The method for converting kinetic energy into electric energy includes an electromagnetic induction effect and a piezoelectric effect, and the method using the electromagnetic induction effect is adopted in this embodiment, but the method using the piezoelectric effect is also within the protection scope of the present application.
In some embodiments of the present invention, the energy conversion mechanism includes a first fixing frame, a moving component and a conversion component, the first fixing frame is used as an installation base of the moving component and the conversion component, the first fixing frame is a shell with a hollow structure, the moving component is arranged in the hollow structure, the conversion component is arranged on an outer wall of the first fixing frame, and the conversion component is subjected to waterproof treatment to prevent seawater from eroding the conversion component, the moving component moves relative to the first fixing frame under the driving of sea wave energy, i.e., the energy capture component moves relative to the conversion component, and the conversion component converts kinetic energy into electric energy for power supply.
Wherein, the one end of first mount is sealed, the other end is provided with the opening, the inside of first mount is entered into from the opening to the motion subassembly, when adopting keeping away from of electromagnetic induction effect to turn into the electric energy with kinetic energy, the motion subassembly is the magnet, it is corresponding, the conversion subassembly is coil 123 and circuit, do not do the injecing here, when adopting keeping away from of piezoelectric effect to turn into the electric energy with kinetic energy, the motion subassembly can be arbitrary shape and structure, the conversion subassembly is piezoelectric material and conversion circuit, waterproof processing can adopt and is provided with the water proof membrane, add the cavity structure and carry out isolated etc. here, do not do the injecing here.
In some embodiments of the present invention, the conversion principle uses an electromagnetic induction effect, the moving assembly includes a second fixed frame and a moving magnet, the second fixed frame is used as a mounting base for the moving magnet, in order to enhance the output of electric energy, the moving magnet may be provided with a plurality of moving magnets to increase magnetic flux, the energy capturing mechanism is connected to the second fixed frame to transfer the captured wave energy to the moving magnet, so that the moving magnet moves relative to the conversion assembly, that is, the conversion assembly moves relative to the moving magnet to cut magnetic induction lines to generate electromotive force, thereby generating electric energy.
The energy capturing mechanism comprises a plurality of moving magnets, wherein the moving magnets are arranged at equal intervals, fixing nuts are arranged on two sides of each moving magnet to prevent relative movement between the moving magnets, threads are arranged on a second fixing frame, the intervals between the moving magnets can be adjusted according to different places or sea waves, and in addition, the energy capturing mechanism is detachably connected with the second fixing frame, and in one embodiment, the energy capturing mechanism is in threaded connection.
In some embodiments of the present invention, the converting assembly includes a coil 123 and a rectifying circuit, the coil 123 is fixed on the outer wall of the first fixing frame, that is, the relative position between the coil 123 and the first fixing frame is not changed, the moving magnet receives the kinetic energy of the energy capturing mechanism, the position is changed, the moving magnet moves relative to the coil 123, that is, the coil 123 moves relative to the moving magnet, the coil 123 cuts the magnetic induction line to generate electromotive force, and by connecting with the rectifying circuit, irregular alternating current is converted into direct current, so as to implement power supply to the offshore infrastructure.
Wherein, coil 123 is wound on first mount with insulating enameled wire is close to arranging, and coil 123 is provided with a plurality ofly, equidistant setting between a plurality of coils 123, and this interval equals with the interval between the motion magnet, adopts the mode of establishing ties between a plurality of coils 123, and bridge rectifier is chooseed for use to rectifier circuit, including circuit, protection resistance and LED pilot lamp etc. but not only be limited to this kind of rectifier, and coil 123 can dismantle the connection on first mount, and the connected mode is not only limited to joint or threaded connection.
In some embodiments of the present invention, the number of the coils 123 is less than or equal to the number of the moving magnets, in one embodiment, the number of the coils 123 is less than the number of the moving magnets, and it is described below that the number of the coils 123 is three, the number of the moving magnets is five, the coils 123 are a first coil, a second coil and a third coil from top to bottom, the moving magnets are a first moving magnet, a second moving magnet, a third moving magnet, a fourth moving magnet and a fifth moving magnet from top to bottom, the distances between two adjacent moving magnets are the same, that is, the moving magnets are arranged on the second fixing frame at equal distances, and when the amplitude is less than one time of the distances, the combinations of the electromagnetic induction are the first moving magnet and the first coil, the second moving magnet and the second coil, and the third moving magnet and the third coil; when the amplitude is larger than one time of the space and smaller than two times of the space, the combination of the electromagnetic induction is the second moving magnet and the first coil, the third moving magnet and the second coil, and the fourth moving magnet and the third coil; when the amplitude is more than two times of the distance and less than three times of the distance, the combination of the generated electromagnetic induction is a third moving magnet and a first coil, a fourth moving magnet and a second coil, and a fifth moving magnet and a third coil; in summary, when the number of the coils 123 is three, and the number of the moving magnets is five, the silencing phenomenon does not occur under the condition that the amplitude is less than three times of the distance, so that the larger the amplitude is, the larger the difference between the number of the coils 123 and the number of the moving magnets is, the more the moving magnets are needed to be used as supplements to solve the problem of the silencing phenomenon, and compared with the design that the number of the coils 123 and the number of the moving magnets are the same under the same working condition, the conversion efficiency of the.
In some embodiments of the present invention, the capturing mechanism includes a floating member made of rigid polyurethane foam material, the floating member is an annular structure, the energy conversion structure is disposed at a hollow position of the floating member, in order to facilitate connection between the floating member and the energy conversion structure, the capturing mechanism further includes a fourth fixing frame and a first fixing plate, the floating member is connected to the second fixing frame through the fourth fixing frame and the first fixing plate, the first fixing plate is connected to the second fixing frame, the fourth fixing frame is connected to the first fixing plate, the fourth fixing frame is provided with threads, two sides of a connection portion of the fourth fixing frame and the first fixing plate are respectively provided with fixing nuts, on one hand, relative position change of the floating member and the first fixing frame is prevented, on the other hand, a position of the floating member relative to the second fixing frame in an axial direction can be adjusted to adapt to different working environments, the second fixing frame, the junction of second mount and first fixed plate is provided with fixation nut respectively, on the one hand, prevents the relative position change between them, and on the other hand, can adjust the position of first fixed plate relative second mount in the axis direction.
The number of the fourth fixing frames is four, the fourth fixing frames are detachably connected with the floating piece and are not limited to clamping connection, threaded connection or bolt connection, and the fourth fixing frames are fixed by nuts and gaskets after penetrating through the floating piece.
In some embodiments of the present invention, the capturing mechanism further includes a second fixing plate, the second fixing plate wraps the hollow edge of the floating member, and is connected to the fourth fixing frame instead of the floating member, so as to prevent the nut and the gasket from damaging the surface of the floating member, the second fixing plate adopts a rigid structure, and the pressure of the nut, the gasket and the surface of the floating member is increased and the stress is reduced by the second fixing plate.
The second fixing plate is only arranged at the position where the fourth fixing frame is connected with the floating part, so that the overall weight of the floating part is reduced as much as possible, and the wave energy is effectively utilized.
In some embodiments of the invention, the multi-stable state switching triggering mechanism is disposed between the housing and the first fixing frame, the multi-stable state switching triggering mechanism includes a third fixing frame and a fixed magnet, the third fixing frame is connected to the housing through a third fixing plate, the third fixing plate is an annular plate, and is respectively connected to the first fixing frame and the housing, and is subjected to waterproof treatment to prevent seawater from contacting with the rectifying circuit and the coil 123 to cause circuit failure, in order to facilitate power supply to the offshore infrastructure, the rectifying circuit leads out an electric wire to pass through the third fixing plate, the connection of the electric wire and the third fixing plate is also subjected to waterproof treatment, the fixed magnet is connected to the third fixing frame, in order to enhance stability of the fixed magnet, the other end of the third fixing frame is further provided with a fourth fixing plate, that is, two ends of the third fixing frame are respectively fixed by the third fixing, the third fixed plate and the fourth fixed plate are parallel, the kinetic energy of the floating part is transferred to the moving magnet, the moving magnet after moving is quickly stabilized through the interaction force between the fixed magnet and the moving magnet, even if the floating part after moving is quickly stabilized, when the wave speed is slower, the electromagnetic induction effect is quickly triggered, and the induced electromotive force generated by electromagnetic induction in the response process is greatly improved.
Wherein, the third fixing frame is provided with a plurality of fixing frames which are arranged at equal intervals around the circumference of the first fixing frame, in one embodiment, four fixing frames are arranged, the third fixing frame is detachably connected with the third fixing plate and the fourth fixing plate and is not limited to clamping connection, threaded connection or bolt connection, the third fixing frame is provided with threads, two sides of the joint of the fixed magnet and the third fixing frame are respectively provided with a fixing nut, the third fixing frame is provided with threads, on one hand, the relative position change of the fixed magnet and the third fixing frame is prevented, on the other hand, the position of the fixed magnet relative to the third fixing frame can be adjusted to adapt to different working environments, in addition, the third fixing frame is connected with the third fixing plate and the fourth fixing plate through the fixing nuts, on one hand, the relative position change of the third fixing frame, the third fixing frame and the fourth fixing plate is prevented, in another aspect, the position of the third and fourth retaining plates relative to the third mount can be adjusted.
In some embodiments of the present invention, the directions of the magnetic poles of the fixed magnet and the moving magnet are the same, the moving magnet is driven to be stable by repulsive force, that is, the floating member is driven to be stable, the stability means that the floating member can drive the moving magnet to move up and down along the axial direction under the action of the wave energy, the concept of stability means that when the moving magnet moves to different positions, the fixed magnet is driven to have only a small range of axial vibration relative to the fixed magnet, when the stable state is destroyed by the wave, the wave drives the floating member to move, the buoyancy or gravity is larger than the maximum repulsive force between the fixed magnet and the moving magnet, the stable state is broken, the moving magnet moves, the adjacent moving magnet replaces the moving magnet to generate repulsive force with the fixed magnet, a new stable state is reached, the switching from one stable state to another stable state is completed, the description is made below with the N poles, the N pole of the fixed magnet is upward, the N pole of the moving magnet is upward, when the moving magnet and the fixed magnet are positioned near the same plane, repulsion between magnetic poles and gravity act to enable the relative position of the moving magnet and the fixed magnet to be in an unstable state, the moving magnet is forced to move, at the moment, under the combined action of the repulsion and the gravity, the movement acceleration of the moving magnet is larger than the movement acceleration when a multistable switching trigger mechanism is not introduced, so that the effect of increasing the change rate of magnetic flux is achieved, the output power is increased, until the fixed magnet is positioned between the two moving magnets, the magnetic force and the gravity balance to enter a stable state, namely, the multistable electromagnetic wave absorption unit is in another stable state, the stress conditions of the moving magnets in different stable states are the same, and different stable states refer to the state that the fixed magnet and different moving.
In some embodiments of the invention, the energy storage mechanism is further arranged in the shell, the electric energy generated by the energy conversion mechanism can be supplied to facilities and can be stored in the energy storage mechanism, the rectification circuit can limit backflow of the electric energy, the output current of the storage battery can be collected, managed and utilized, and the response signals generated by the multistable electromagnetic wave energy absorption unit can be operated and analyzed to obtain wave speed, acceleration, wave height, direction and other information of the waves.
Wherein, the energy storage mechanism is a storage battery.
The working process of the multistable electromagnetic wave energy absorption unit is described as follows: the wave fluctuation generates driving force on the floating part to enable the floating part to have kinetic energy, the floating part transmits the kinetic energy to the moving magnet, the moving magnet makes linear motion relative to the coil 123, namely the coil 123 makes linear motion relative to the moving magnet to cut the magnetic induction line to generate electric energy, alternating current is converted into direct current through the rectifying circuit, and the direct current is transmitted to the storage battery to be stored, and can also be directly supplied to other facilities for power supply.
According to another embodiment of the invention, the parallel type sea wave energy absorber comprises a fixed seat and a plurality of multi-stable state electromagnetic type sea wave energy absorption units in the above embodiment, the multi-stable state electromagnetic type sea wave energy absorption units are arranged on the fixed seat after being connected in parallel, the central connecting lines of the multi-stable state electromagnetic type sea wave energy absorption units are polygonal, and the electric energy generated by the multi-stable state electromagnetic type sea wave energy absorption units after being connected in parallel is analyzed to obtain ocean information.
According to the parallel type wave energy absorber of the embodiment of the invention, the multistable electromagnetic type wave energy absorbing units in any embodiment have the same advantages, in addition, the fixed seat can ensure that the multistable electromagnetic type wave energy absorbing units do not change relatively, the multistable electromagnetic type wave energy absorbing units are connected in parallel and then carry out collective output on electric energy, the parallel type wave energy absorber is anchored on the sea bottom, the time of the wave reaching the multistable electromagnetic type wave energy absorbing units has a front-back sequence, each multistable electromagnetic type wave energy absorbing unit generates fluctuating electric energy when working, the wave environments of the parallel connected waves are the same but not completely synchronous under the influence of the wave, and the response time difference exists, so that the parallel connection realizes mutual supplement while the output power is multiplied, the energy absorption length is reduced, the stable output is realized to a certain extent, and the parallel connection of the three multistable electromagnetic type wave energy absorbing units is based on the three multistable electromagnetic type wave units, analyzing the waveform and the response time difference of the voltage signal generated by the energy storage device, a certain ocean information monitoring function can be realized, and the information such as the wave speed, the acceleration, the wave height, the direction and the like of ocean waves can be obtained, for example, the energy storage device comprises a first multistable electromagnetic type ocean wave energy absorption unit, a second multistable electromagnetic type ocean wave energy absorption unit and a third multistable electromagnetic type ocean wave energy absorption unit, the side length of a formed triangle is d, the voltage response signal of the first multistable electromagnetic type ocean wave energy absorption unit is a second before the voltage response signal of the second multistable electromagnetic type ocean wave energy absorption unit, the voltage response signal of the second multistable electromagnetic type ocean wave energy absorption unit is a second before the voltage response signal (n & gta) of the third multistable electromagnetic type ocean wave energy absorption unit, and the ocean wave direction can be known to be that the connecting line of the first multistable electromagnetic type energy absorption unit and the third multistable electromagnetic type ocean wave energy absorption unit is close to The energy absorption units are connected in a vertical direction, sea wave displacement is obtained through a trigonometric function, the wave velocity v of the sea waves is easy to obtain, the number of the multistable electromagnetic type sea wave energy absorption units is three, the number of the multistable electromagnetic type sea wave energy absorption units is the minimum number for realizing basic functions, and the energy output power and the ocean information monitoring precision can be further improved by adding the multistable electromagnetic type sea wave energy absorption units connected in parallel.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. The utility model provides a multistable electromagnetic type wave energy absorption unit which characterized in that includes:
a housing;
an energy capturing mechanism configured to capture and convert wave energy into kinetic energy;
the energy conversion mechanism comprises a first fixing frame, a motion assembly and a conversion assembly, the first fixing frame is arranged in the shell, the motion assembly is connected in the first fixing frame, the energy capture mechanism is connected to the motion assembly, the conversion assembly is connected to the first fixing frame, the motion assembly receives the kinetic energy and moves relative to the first fixing frame, and the conversion assembly is arranged to convert the kinetic energy into electric energy;
the moving assembly comprises a second fixing frame and a plurality of moving magnets, the second fixing frame is arranged in the first fixing frame, the energy capturing mechanism is connected with the second fixing frame, the moving magnets are arranged on the second fixing frame at equal intervals, and the moving magnets are arranged to receive the kinetic energy and move relative to the conversion assembly;
the conversion assembly comprises a plurality of coils and a rectifying circuit, the plurality of coils are arranged on the first fixing frame at equal intervals, the coils are arranged to move relative to the moving magnet to cut magnetic induction lines so as to generate electric energy, the rectifying circuit is electrically connected with the coils, the number of the coils and the number of the moving magnets are both multiple, and the number of the coils is less than or equal to that of the moving magnets;
the multi-stable state switching triggering mechanism is connected to the energy conversion mechanism;
the energy capturing mechanism is arranged to receive the kinetic energy and move relative to the energy conversion mechanism, the energy conversion mechanism converts the kinetic energy into electric energy, and the multistable switching triggering mechanism is arranged to maintain a stable state of the energy conversion mechanism under each working condition through the acting force of the magnet and improve the magnetic flux change rate of electromagnetic induction during switching between different stable states.
2. A multistable electromagnetic wave energy absorbing unit according to claim 1 wherein the capturing mechanism comprises:
a float member connected to the second mount, the float member configured to capture the wave energy and drive the moving magnet to move relative to the coil.
3. A multistable electromagnetic wave energy absorbing unit according to claim 2 wherein the multistable switch trigger mechanism is disposed between the housing and the first mount, the multistable switch trigger mechanism comprising:
the third fixing frame is connected to the shell;
and the fixed magnet is connected to the third fixing frame and is arranged to be matched with the moving magnet so as to drive the floating piece to move and then to be stable.
4. A multistable electromagnetic wave energy absorbing unit according to claim 3 wherein the fixed magnets and the moving magnets have the same pole direction.
5. A multistable electromagnetic wave energy absorbing unit according to claim 1, further comprising an energy storage mechanism disposed within the housing, the energy storage mechanism being electrically connected to the rectifier circuit and arranged to store the electrical energy.
6. A parallel wave energy absorber, comprising:
a fixed seat;
the multi-stable-state electromagnetic wave energy absorption unit as claimed in any one of claims 1 to 5, wherein the multi-stable-state electromagnetic wave energy absorption unit is arranged on the fixing seat after being connected in parallel, the central connecting line of the multi-stable-state electromagnetic wave energy absorption unit is polygonal, and the electric energy generated by the multi-stable-state electromagnetic wave energy absorption unit after being connected in parallel is analyzed to obtain ocean information.
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| CN201910959673.2A CN110848073B (en) | 2019-10-10 | 2019-10-10 | Multistable electromagnetic type sea wave energy absorption unit and parallel type sea wave energy absorber |
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| US10047717B1 (en) * | 2018-02-05 | 2018-08-14 | Energystics, Ltd. | Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof |
| CN108825427A (en) * | 2018-05-25 | 2018-11-16 | 北京航空航天大学 | Mechanical rectification formula wave energy-absorbing electric generating apparatus |
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| CN104976047A (en) * | 2015-06-19 | 2015-10-14 | 电子科技大学 | Direct drive type wave power generation system utilizing superconducting coils |
| CN105697223A (en) * | 2016-04-26 | 2016-06-22 | 上海交通大学 | Non-linear direct-drive float type wave power generation device |
| US10047717B1 (en) * | 2018-02-05 | 2018-08-14 | Energystics, Ltd. | Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof |
| CN108825427A (en) * | 2018-05-25 | 2018-11-16 | 北京航空航天大学 | Mechanical rectification formula wave energy-absorbing electric generating apparatus |
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