阅读说明：本技术 波浪能应用装置 (Wave energy application device ) 是由 王刚 郑振晓 于 2019-08-29 设计创作，主要内容包括：一种波浪能应用装置,包括捕能转换机构,还包括具有密封腔的壳体,所述捕能转换机构安装于所述密封腔内,所述壳体包括位于底部由边缘部向中心并向下逐渐拱出的底弧形面,所述波浪能应用装置的重心位于下部。本申请的波浪能应用装置,采用壳体构造,可承受冲击大,遭遇极端天气也不易损坏,而且无浸没在海水中的零部件,可靠性高,使用寿命长；整体重心靠下,在极端天气时发生翻转后可自行调整恢复,保持稳定的姿态,降低了日常维护的成本；具有适用性广泛、性能稳定、响应灵敏等优点。(The wave energy application device comprises an energy capturing and converting mechanism and a shell with a sealed cavity, wherein the energy capturing and converting mechanism is arranged in the sealed cavity, the shell comprises a bottom arc-shaped surface which is positioned at the bottom and gradually arches downwards from an edge part to the center, and the center of gravity of the wave energy application device is positioned at the lower part. The wave energy application device adopts a shell structure, can bear large impact, is not easy to damage when meeting extreme weather, has no parts immersed in seawater, and has high reliability and long service life; the whole gravity center is lower, and the whole gravity center can be automatically adjusted and recovered after being turned over in extreme weather, so that the stable posture is kept, and the cost of daily maintenance is reduced; the method has the advantages of wide applicability, stable performance, sensitive response and the like.)

1. a wave energy application device comprising an energy capturing and converting mechanism (3), characterized in that: the wave energy application device is characterized by further comprising a shell (1) with a sealed cavity (13), the energy capturing and converting mechanism (3) is installed in the sealed cavity (13), the shell (1) comprises a bottom arc-shaped surface (121) which is located at the bottom and gradually arched downwards from an edge portion to the center, and the center of gravity of the wave energy application device is located at the lower portion.

2. The wave energy application device of claim 1, wherein: the shell (1) is provided with a fixed tail wing plate (2), the lower edge of the tail wing plate is in arc transition with the bottom arc-shaped surface (12), the central plane where the tail wing plate (2) is located is perpendicular to the horizontal plane and coincides with the central line (X1) of the shell perpendicular to the horizontal plane, and the tail wing plate (2) radially extends outwards from the bottom arc-shaped surface (121) by taking the central line (X1) as the circle center.

3. The wave energy application device of claim 2, wherein: casing (1) is circular shape lower casing (12), is located including being located arbitrary cross section edge profile in lower part arbitrary cross section edge profile is circular shape last casing (11) on lower casing seat (12), go up casing (11) with lower casing seat (12) junction cambered surface transition, end arcwall face (121) do lower casing seat (12) lower surface, sealed chamber (13) form in lower casing seat (12) with between last casing (11).

4. The wave energy application device of claim 3, wherein: the cross section edge profile of the upper shell (11) is gradually reduced from bottom to top, the cross section edge profile of the lower shell seat (12) is gradually reduced from top to bottom, the height of the lower shell seat (12) accounts for 1/4-1/3 of the total height of the shell (1), and the outer profile of the shell (1) is in a water drop shape.

5. The wave energy application device of claim 4, wherein: the height a of the shell (1) is 2m-2.1m, the width b of the widest part of the shell (1) is 1.4m-1.6m, and the total width c of the shell (1) and the tail wing plate (2) is 1.8m-1.9 m.

6. The wave energy application device of claim 4, wherein: the energy capturing and converting mechanism (3) comprises a single pendulum type rotor (31) with the upper end part rotatably arranged in the sealed cavity (13) through a pendulum shaft (33), and an arc type stator (34) fixedly arranged in the middle of the lower shell seat (12) and with the length extending along a concave arc line, at least one pair of windings is arranged on the circular arc stator (34), a pair of magnets (32) is fixed at the lower end part of the single pendulum type rotor (31), when the single pendulum type rotor (31) swings back and forth through the pendulum shaft (33), the magnet (32) moves back and forth relative to the arc-shaped stator (34), the central plane (S1) of the tail wing plate and the central plane (S2) of the arc stator are coincided, and is coincided with a central line (X1) of the shell vertical to the horizontal plane, and a central line (X2) of the pendulum shaft is vertical to a central line (X1) of the shell vertical to the horizontal plane.

7. The wave energy application device of claim 6, wherein: the sealing structure is characterized in that two supporting seats (35) are arranged in the sealing cavity (13), the lower parts of the two supporting seats (35) are respectively fixed on the lower shell seat (12), angular contact ball bearings (36) are oppositely fixed on the upper parts of the supporting seats (35) back to back, two end parts of a swing shaft (33) fixed at the upper end part of the single pendulum type rotor (31) are respectively inserted into the corresponding angular contact ball bearings (36), and a central plane (S1) where a tail wing plate (2) is located is respectively superposed with the symmetrical planes of the two supporting seats (35) and the longitudinal central line of the single pendulum type rotor (31).

8. The wave energy application device of claim 7, wherein: the lower shell seat (12) is provided with a horizontal groove (122) with an opening facing the sealed cavity (13), the arc stator (34) is fixed in the horizontal groove (122), and the lower end part of the single pendulum type rotor (31) and the magnet (32) are inserted in the horizontal groove (122).

9. The wave energy application device of claim 5, wherein: and cushion pads for preventing the inner wall of the shell (1) from being damaged are fixed at two ends of the single pendulum type rotor.

10. The wave energy application device of claim 5, wherein: the wave energy application device further comprises a load and/or a storage battery and a conversion circuit for converting the original alternating current output by the coil into direct current to supply power to the load and/or the storage battery, wherein the conversion circuit sequentially comprises a booster circuit, a rectifying circuit, a filter circuit and a voltage stabilizing circuit.

Technical Field

The invention relates to a wave energy application device.

Background

Wave energy refers to the kinetic and potential energy of waves on the ocean surface. The wave energy generator is mainly formed by wind energy absorbed by ocean, and the energy of the wave energy generator is in positive correlation with the motion period of waves, the wave surface width and the wave height square. Wave energy is a renewable energy source which has huge reserves, high energy density, cleanness and environmental protection, and receives more and more attention and attention from the world of ocean resources.

However, the wave energy has the characteristics of unstable energy density, great influence by sea area and weather factors and the like, so that the difficulty in development and utilization is increased, and further commercial popularization is influenced. The following disadvantages are mainly involved:

(1) Instability of energy

The density and quality of wave energy are greatly influenced by seasons, weather, wind power and air pressure, and are generally distributed unevenly in different sea areas;

(2) High power generation cost and difficulty

Due to the large sea surface range, the influence of severe weather, the instability of wave energy and other factors, the design difficulty and the development cost of the wave energy application device are increased;

(3) Low power generation efficiency

The instability of wave energy causes the low power generation efficiency and poor power generation quality of the existing wave energy application device, such as unstable voltage and frequency.

At present, various types of wave energy application devices generally face the main problems of how to improve the power generation efficiency and the stability of the device, reduce the power generation cost, improve the universality and the like.

Disclosure of Invention

the invention aims to provide a wave energy application device.

In order to solve the technical problems, the invention adopts the technical scheme that: the wave energy application device comprises an energy capturing and converting mechanism and a shell with a sealed cavity, wherein the energy capturing and converting mechanism is arranged in the sealed cavity, the shell comprises a bottom arc-shaped surface which is positioned at the bottom and gradually arches downwards from an edge part to the center, and the center of gravity of the wave energy application device is positioned at the lower part.

In some embodiments, a fixed tail wing plate is arranged on the casing, the lower edge of the tail wing plate is in arc transition with the bottom arc-shaped surface, the central plane of the tail wing plate is perpendicular to the horizontal plane and coincides with the central line of the casing perpendicular to the horizontal plane, and the tail wing plate extends outwards from the bottom arc-shaped surface in the radial direction with the central line as the center.

In some embodiments, the casing includes a lower casing seat located at any lower portion and having a circular cross-sectional edge profile, and an upper casing located on the lower casing seat and having a circular cross-sectional edge profile, where the junction of the upper casing and the lower casing seat is in arc transition, the bottom arc surface is the lower surface of the lower casing seat, and the seal cavity is formed between the lower casing seat and the upper casing seat.

In some embodiments, the cross-sectional edge profile of the upper shell gradually decreases from bottom to top, the cross-sectional edge profile of the lower shell seat gradually decreases from top to bottom, the height of the lower shell seat accounts for 1/4-1/3 of the total height of the shell, and the outer profile of the shell is in a drop shape.

In certain embodiments, the shell height a is from 2m to 2.1m, the shell widest point width b is from 1.4m to 1.6m, and the common width c of the shell and the tail flap panel is from 1.8m to 1.9 m.

In some embodiments, the energy capturing and converting mechanism includes a single pendulum type rotor having an upper end rotatably disposed in the sealed cavity through a pendulum shaft, and an arc stator fixedly disposed in the middle of the lower housing and having a length extending along a concave arc, wherein at least one pair of windings is disposed on the arc stator, and a pair of magnets is fixed to a lower end of the single pendulum type rotor, and when the single pendulum type rotor swings back and forth through the pendulum shaft, the magnets move back and forth relative to the arc stator.

In some embodiments, a central plane of the tail wing plate and a central plane of the arc stator coincide with each other and coincide with a central line of the housing perpendicular to a horizontal plane, and a central line of the swing shaft is perpendicular to the central line of the housing perpendicular to the horizontal plane.

In some embodiments, the sealed cavity has two supporting seats, lower portions of the two supporting seats are respectively fixed on the lower shell seat, upper portions of the two supporting seats are respectively fixed with angular contact ball bearings back to back, two end portions of a pendulum shaft fixed at an upper end portion of the single pendulum type rotor are respectively inserted into the corresponding angular contact ball bearings, and a central plane where the tail wing plate is located is respectively overlapped with a symmetrical plane of the two supporting seats and a longitudinal central line of the single pendulum type rotor.

In some embodiments, the lower casing seat is provided with a horizontal groove with an opening facing the sealed cavity, the circular arc stator is fixed in the horizontal groove, and the lower end part of the single pendulum type rotor and the magnet are inserted in the horizontal groove.

In some embodiments, cushions are fixed at two ends of the single pendulum type mover to prevent damage to the inner wall of the housing.

In some embodiments, the wave energy application device further includes a load and/or a storage battery, and a conversion circuit for converting the original alternating current output by the coil into direct current to supply power to the load and/or the storage battery, and the conversion circuit sequentially includes a boost circuit, a rectification circuit, a filter circuit, and a voltage stabilizing circuit.

The scope of the present invention is not limited to the specific combinations of the above-described features, and other embodiments in which the above-described features or their equivalents are arbitrarily combined are also intended to be encompassed. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.

due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the wave energy application device adopts a shell structure, can bear large impact, is not easy to damage when meeting extreme weather, has no parts immersed in seawater, and has high reliability and long service life; the whole gravity center is lower, and the whole gravity center can be automatically adjusted and recovered after being turned over in extreme weather, so that the stable posture is kept, and the cost of daily maintenance is reduced; the method has the advantages of wide applicability, stable performance, sensitive response and the like.

Drawings

FIG. 1 is a front-rear cross-sectional view of a wave energy application device;

FIG. 2 is a left and right sectional view of the wave energy application device;

FIG. 3 is a partially sectioned top view of the front portion of the wave energy application device;

FIG. 4 is a sectional view of the swing shaft;

FIG. 5 is a schematic diagram of the energy capture conversion mechanism;

FIG. 6 is a schematic diagram of a conversion circuit;

FIG. 7 is a schematic diagram of the force applied by the wave energy application device in the waves;

Wherein: 1. a housing; 11. an upper housing; 12. a lower shell seat; 121. a bottom arcuate surface; 122. a horizontal groove; 13. sealing the cavity; 2. a tail wing panel; 3. an energy capturing and converting mechanism; 31. a single pendulum mover; 32. a magnet; 33. a pendulum shaft; 34. a circular arc stator; 35. a supporting seat; 36. angular contact ball bearings; s1, a central plane where the tail wing plate is located; s2, a central plane where the arc stator is located; x1, center line of shell perpendicular to horizontal plane; x2, center line of the pendulum shaft.

Detailed Description

As shown in the figures, the wave energy application device comprises an energy capturing conversion mechanism 3 and a shell 1 with a sealed cavity 13, wherein the energy capturing conversion mechanism 3 is arranged in the sealed cavity 13. As shown in fig. 2, the housing 1 includes a bottom arc-shaped surface 121 at the bottom portion which is gradually arched downward from the edge portion toward the center. The center of gravity of the wave energy application device is located at the lower part. The whole outer contour adopts a shell structure, so that the device can bear large impact, is not easy to damage in extreme weather, has no parts immersed in seawater, and has high reliability and long service life; the whole gravity center is lower, and the turnover type solar water heater can be automatically adjusted and recovered after being turned over in extreme weather, so that the stable posture is kept, and the cost of daily maintenance is reduced.

As shown in fig. 1 and 3, a fixed tail wing plate 2 is arranged on a shell 1. As shown in fig. 1-3, the central plane S1 of the tail wing panel 2 is perpendicular to the horizontal plane and coincides with the central line X1 of the housing perpendicular to the horizontal plane, and the tail wing panel 2 extends outward from the bottom arc surface 121 in a radial direction with the central line X1 as a center. The tail wing plate 2 is used as a tail wing feedback adjusting mechanism, and the direction of the tail wing plate 2 is adjusted through the wave exciting force, so that the swinging direction of the shell 1 is determined to correspond to the wave direction, and the wave energy capturing efficiency is improved.

In this embodiment, the casing 1 includes that any cross section edge profile located in the lower part is circular lower casing 12, is located any cross section edge profile on the lower casing 12 and is circular last casing 11, goes up casing 11 and 12 junction cambered surface transition of lower casing, and bottom arcwall face 121 is lower casing 12 lower surface, and sealed chamber 13 is formed between lower casing 12 and last casing 11. The cross-sectional edge profile of the upper shell 11 gradually decreases from bottom to top, the cross-sectional edge profile of the lower shell 12 gradually decreases from top to bottom, and the height of the lower shell 12 accounts for 1/4-1/3 of the total height of the shell 1. The outer contour of the shell 1 is in a water drop shape with a big bottom and a small top, the lower shell seat 12 at the lower part is provided with a tail wing plate 2, and the whole gravity center is positioned at the lower part. Sensitive response under the influence of waves and good applicability.

The housing 1 may be laterally opened, i.e., a sealed connection at an edge portion between the upper housing 11 and the lower housing 12. Or the two half shells can be formed by longitudinally and hermetically connecting a left half shell and a right half shell, and each half shell comprises an upper half shell and a lower half shell.

The energy capturing and converting mechanism 3 comprises a single pendulum type rotor 31 with the upper end rotatably arranged in the sealed cavity 13 through a pendulum shaft 33, and a circular arc type stator 34 fixedly arranged in the middle of the lower shell base 12 and with the length extending along a downward concave arc line. Considering the actual range of the simple pendulum angle, the stator winding is not easy to be installed too much, and the reduction of the utilization rate of the power generation mechanism is avoided. The arc stator 34 is provided with three pairs of windings. A pair of magnets 32, such as a neodymium-iron-boron permanent magnet, is fixed to the lower end portion of the pendulum mover 31, and when the pendulum mover 31 is swingable back and forth relative to the housing 1 only via a swing shaft 33, the magnets 32 move back and forth relative to the circular-arc stator 34. Cushion pads are mounted at both ends of the single pendulum mover 31 to prevent the mover from damaging the inner wall of the device in extreme cases. As shown in fig. 5, the reciprocating motion of the simple pendulum changes the magnetic flux in the winding coil, and the winding generates induced electromotive force, so that the conversion from wave energy to electric energy can be completed. The adoption of the installation mode that the stator winding is installed below the single pendulum type rotor can effectively avoid unbalanced stress caused by installation on two sides. Meanwhile, the gravity center of the device can be moved downwards by the installation mode, and the device is more beneficial to keeping stable.

as shown in fig. 1-3, the central plane S1 of the tail vane and the central plane S2 of the arc stator coincide with each other and coincide with the center line X1 of the housing perpendicular to the horizontal plane. The centre line X2 of the pendulum shaft is perpendicular to the centre line X1 of the shell perpendicular to the horizontal plane. The shell 1 responds sensitively with the waves, the applicability is good, only the waves slightly drive the shell 1 to swing, the single pendulum type rotor 31 can correspondingly generate slight swing, and the wave energy is captured.

Installation of the energy capturing conversion mechanism 3:

as shown in fig. 4, two supporting seats 35 are provided in the sealed cavity 13, lower portions of the two supporting seats 35 are respectively fixed to the lower housing 12, upper portions of the supporting seats 35 are respectively fixed to angular contact ball bearings 36 back to back, and both end portions of the pendulum shaft 33 fixed to an upper end portion of the pendulum type mover 31 are respectively inserted into the corresponding angular contact ball bearings 36. The central plane S1 where the tail wing plate 2 is located coincides with the symmetry plane of the two support seats 35 and the longitudinal center line of the single pendulum type mover 31, respectively.

the angular contact ball bearing 36 is installed in a back-to-back reverse mode, and the installation mode of fixing the two fulcrums in one direction is as follows: the equivalent friction coefficient of the angular contact ball bearing 36 is small, which is beneficial to the reciprocating motion of a simple pendulum and reduces the friction loss; the device can bear radial load and axial load at the same time, and prevent the damage of axial wave force to the device; the back-to-back is reversely arranged to enlarge the pressure center distance L, increase the preset clearance and prevent the dead locking caused by the thermal deformation of the pendulum shaft 33. The upper end part of the single pendulum type rotor 31 and the pendulum shaft 33 are fixed by adopting a butt nut, the fixing mode depends on the pressure and the friction between threads to prevent looseness, the structure is simple, and the single pendulum type rotor is suitable for connection on a fixing device with stability, low speed and heavy load. Meanwhile, the gap between the rotor and the stator is convenient to adjust, and the natural frequency of the device is changed.

The lower housing base 12 is provided with a horizontal groove 122 opened toward the sealed chamber 13, the circular arc stator 34 is fixed in the horizontal groove 122, and the lower end portion of the pendulum type mover 31 and the magnet 32 are inserted in the horizontal groove 122. The gravity center of the wave energy application device is reduced as much as possible.

The energy capturing and converting mechanism 3 is simple in structure principle, convenient to machine and assemble, capable of effectively reducing manufacturing cost, capable of guaranteeing that wave exciting force and swinging direction are in the same horizontal plane under the feedback adjusting effect of the tail wing plate 2, and high in wave energy capturing efficiency.

in the conversion from wave energy to electric energy, the voltage and current signals output by the stator coil are weak and unstable, and if the voltage and current signals are directly connected to a load circuit, impact is caused to various components in the circuit, even the circuit is damaged, and the circuit cannot work normally. Therefore, a conversion circuit is designed to perform a series of operations such as voltage regulation, rectification, filtering, and voltage stabilization on the output voltage and current signals before the load is connected. The single-phase bridge rectifier circuit is adopted for rectification, the pi-shaped RC filter circuit is used for filtering, and finally the voltage is stabilized through the voltage stabilizing diode, and the circuit diagram design is shown in figure 6:

The original alternating current signal output by the coil is boosted by the transformer so as to be convenient for processing subsequent electrical signals.

the rectification link adopts the most common single-phase bridge rectification circuit, which utilizes the unidirectional conductivity of diodes and is formed by connecting four diodes into a bridge. When the transformer voltage u is in the positive half cycle, the diodes D1 and D3 are turned on, and D2 and D4 are turned off; when the transformer voltage u is in the negative half cycle, the diodes D2 and D4 are turned on, and D1 and D3 are turned off. This makes use of the entire period of the power supply with respect to the half-wave rectifier circuit while reducing the ripple of the rectified voltage.

the filtering link adopts a pi-shaped RC filtering circuit which consists of a resistor R and two capacitors C1 and C2. The filter avoids the defects of large coil volume and high cost in a pi-shaped filter using an inductance coil, and simultaneously keeps better filtering effect. The resistor has a voltage reduction effect on alternating current, and when the resistor is matched with the capacitor, the alternating current component of the pulsating voltage can be more dropped on two ends of the resistor and less dropped on a load, so that the filtering effect is achieved. The larger R is, the larger C2 is, the better the filtering effect is, and the method is mainly suitable for occasions with smaller load current and small output voltage ripple.

The voltage stabilizing link adopts a voltage stabilizing diode, and the voltage is kept stable and unchanged by utilizing the reverse breakdown state of the PN junction. The ac power generated by the wave energy application device is ultimately converted to dc power by the conversion circuit of fig. 7 for supply to a load or to a battery.

The simple pendulum type wave energy application device takes a simple pendulum as an energy absorption medium, and a shell 1 of the device continuously swings back and forth under the excitation of incident waves. Due to the inertia effect, the single pendulum type mover 31 and the circular arc stator 34 fixed to the lower housing base 12 move relatively to each other and change the magnetic flux in the stator coil, thereby converting the mechanical energy into electric energy, and storing or outputting the electric energy to a load through the rectifying circuit. Meanwhile, the tail wing plate 2 arranged on one side of the shell continuously adjusts the position of the device so as to improve the capture efficiency of wave energy and reduce the power generation cost.

As shown in fig. 7, the device mainly absorbs wave energy in a rolling motion mode, the housing swings back and forth for one circle, and the internal simple pendulum type mover 31 also swings for one circle relative to the bottom circular arc type stator 34, so that a power generation cycle is completed.

The simple pendulum type wave energy application device is designed aiming at the problems of narrow applicable sea area range, high maintenance cost, unstable power generation performance and the like of the traditional wave energy application device at present, and has the advantages of sensitive response, safety, stability, easiness in installation and anchoring and the like.

the tail wing plate 2 of the feedback mechanism capable of automatically adjusting the position is arranged, so that a complex anchoring system is avoided, stable operation can be realized in the offshore region, the advantages can be displayed in the deep sea, and the tail wing plate can be used for supplying power to a series of ocean equipment with lower power consumption, such as ocean data buoys, meteorological buoys, beacon lights and the like, or used as an auxiliary power supply device of other forms of power generation systems, and has wide application prospects.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.