CN103337986B - Rotary wave energy piezoelectric power generation apparatus - Google Patents
Rotary wave energy piezoelectric power generation apparatus Download PDFInfo
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- CN103337986B CN103337986B CN201310204769.0A CN201310204769A CN103337986B CN 103337986 B CN103337986 B CN 103337986B CN 201310204769 A CN201310204769 A CN 201310204769A CN 103337986 B CN103337986 B CN 103337986B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention belongs to the technology of new energy resources, relates to a rotary wave energy piezoelectric power generation apparatus which is used for collecting ocean wave energy and converting the ocean wave energy into electric energy. The apparatus is composed of a primary transduction component, an intermediate conversion component, a secondary transduction component and a sealing assembly. The primary transduction component is composed of a damping plate, a slide shaft, a damping plate fastening nut, a floating body, an upper slide sleeve and a lower slide sleeve, an upper balance spring and a lower balance spring, a middle support and a lower support. A broadband rotary piezoelectric generator in the secondary transduction component altogether has six structural forms, wherein arrayed piezoelectric cantilever beams in the broadband rotary piezoelectric generators in different structural forms have different natural frequencies, and thus the frequency bandwidth is relatively wide. The middle conversion component can effectively convert low-frequency linear motion into high-frequency rotation motion, and the power generation efficiency is relatively high. The apparatus is characterized by wide response frequency band and high power generation efficiency, does not need a control system, and can absorb ocean wave energy to the utmost.
Description
Technical field
The invention belongs to technical field of new energies, relating to a kind of rotary wave energy piezoelectric generating device, converting it into the device of electric energy for collecting ocean wave energy.
Background technology
The monitoring of the mankind to marine environment and safety is strengthened day by day, and the energy supply problem of ocean wireless sensing net node is in the urgent need to address.Traditional energy-provision way comprises solar energy, lithium battery, chemical cell etc., and solar power generation is subject to Marine Weather impact; Lithium battery needs constantly to change; Chemical cell needs the danger changed electrode and there is contaminated environment.Ocean wave energy is the renewable and clean energy resource that a kind of quality is higher, and reserves are huge.Collect wave energy to be ocean wireless sensing net node energy supply be a kind of mode of great potential.At present, the technology that electricity generation by sea waves is main comprises pressure differential technology etc. in an absorption technology, oscillating water column technology, unrestrained top formula technology, water.There is a small amount of wave energy product to reach practical level at present, have the Pelamis wave power device etc. of Britain.All in all, ocean wave energy device build is huge, cost is higher, usually need supplementary controlled system, and discomfort is combined into wireless sensing net node or microelectronic device provides energy.
Utilize piezo technology collect ocean wave energy for ocean wireless sensing net node or microelectronic device energy supply be a kind of desirable mode.The human hairs such as Chu Jinkui understand a kind of orthoscopic piezoelectricity wave energy generating set, and application number is 201110112353.7, and denomination of invention is: a kind of device utilizing seawave power generation.The shortcoming of this invention is that the bandwidth of Blast Furnace Top Gas Recovery Turbine Unit (TRT) is narrower, and conversion efficiency is not high.The human hairs such as Du little Zhen understand that a kind of piezoelectric pile that utilizes carries out the device generated electricity, application number: 201110414908.3, and denomination of invention is: small ocean piezoelectric generator.The shortcoming of this invention is that the operating frequency of Blast Furnace Top Gas Recovery Turbine Unit (TRT) is lower, and efficiency is low.At present, the main Problems existing of correlation technique utilizing piezoelectric to collect ocean wave energy is that Blast Furnace Top Gas Recovery Turbine Unit (TRT) responsive bandwidth is narrower, and generating efficiency is lower.
Summary of the invention
The technical barrier that the present invention will solve is the defect overcoming prior art, invent a kind of rotary wave energy piezoelectric generating device, owing to adopting one-level transducer part, intermediate conversion parts and secondary transducer part, make this device response band wide, generating efficiency is high, can be suitable for the feature of ocean wave energy change at random, and this device does not need control system, ocean wave energy can be absorbed to greatest extent.
The technical solution adopted in the present invention is a kind of rotary wave energy piezoelectric generating device, it is characterized in that, this device is made up of one-level transducer part, intermediate conversion parts, secondary transducer part and black box; Described one-level transducer part by damping sheet 1, sliding axle 2, damping sheet clamp nut 18, float body 3, upper and lower sliding sleeve 14,5, upper and lower balancing spring 12,6, intermediate support 7 and upper bracket 16 form; Described middle transducer part is by tooth bar 8, and gear 9 and axle 17 form; Described secondary transducer part, by electric machine support, wideband rotary piezoelectric generator 11, rectifier bridge 21 and circuit box 15 form; Described black box is made up of sealing ring 4 and seal closure 13;
In described one-level transducer part, damping sheet 1 utilizes damping sheet clamp nut 18 to be fixed on sliding axle 2 one end; Intermediate support 7 and sliding axle 2 are rigidly connected; Electric machine support is fixed on float body 3 top, and upper bracket 16 is fixed on electric machine support top.Upper sliding sleeve 14 is fixed on upper bracket 16 bottom, and low sleeve 5 is fixed on float body 3 top; Upper balancing spring 12 is arranged between upper sliding sleeve 14 and intermediate support 7; Lower balancing spring 6 is arranged between low sleeve 5 and intermediate support 7; Sliding axle 2 slides in upper and lower sliding sleeve 14,5;
In described black box, it is inner that sealing ring 4 is fixed on float body 3 by low sleeve 5, and seal closure 13 is fixed on float body 3 top;
In described middle transducer part, middle transducer part and the symmetrical distribution of wideband rotary piezoelectric generator 11; Tooth bar 8 is fixed on intermediate support 7, and gear 9 and axle 17 synchronous axial system, utilize bearing to be fixed on electric machine support by axle 17, and tooth bar 8 and gear 9 engage each other;
In described secondary transducer part, wideband rotary piezoelectric generator 11 by driving wheel 11a, several permanent magnets 11b, several piezoelectric cantilevers 11c, support and securing member form; Described securing member is support fastening bolt 19a and support clamp nut 19b or support trip bolt 20; Securing member is utilized to realize the fixing of support and electric machine support; Several permanent magnets 11b uniform array is in driving wheel 11a surrounding; Driving wheel 11a and axle 17 synchronous axial system; The different piezoelectric cantilever 11c uniform array of several natural frequencys is on support, and the free end of each piezoelectric cantilever 11c is fixed with permanent magnet 11b; Axle 17 and support dead in line, support is fixed on electric machine support; Rectifier bridge 21 converts the alternating current that piezoelectric cantilever 11c produces to direct current to load R energy supply; Circuit box 15 is arranged on upper bracket 16.
The rotary wave energy piezoelectric generating device of described one, is characterized in that, in described secondary transducer part, described support has the first support 11d, the second support 11d ' or the third support 11d "; The first support 11d surrounding be uniform-distribution with a circle parallel axes to several support arms; The second support 11d ' surrounding be uniform-distribution with two circle parallel axes to several support arms; " surrounding is uniform-distribution with several support arms pointing to axle center to the third support 11d; Electric machine support has the first electric machine support 10, the second electric machine support 10 ' or the third electric machine support 10 "; Three kinds of electric machine supports all position axle 17, and in addition, the first electric machine support 10 utilizes fixed arm 10a to fix the first support 11d or the second support 11d '; The second electric machine support 10 ' utilizes left fixed arm 10a ' and right fixed arm 10b ' to fix the first support 11d or the second support 11d '; The third electric machine support 10 " in utilizing fixed arm 10a " and extenal fixation arm 10b " fix the third support 11d ".
The rotary wave energy piezoelectric generating device of described one, it is characterized in that, in described secondary transducer part, wideband rotary piezoelectric generator 11 has 6 kinds of versions, and these 6 kinds of versions are respectively I molded breadth rotary piezoelectric generator, II molded breadth rotary piezoelectric generator, III molded breadth rotary piezoelectric generator, IV molded breadth rotary piezoelectric generator, V molded breadth rotary piezoelectric generator and VI molded breadth rotary piezoelectric generator frequently frequently frequently frequently frequently frequently; In the wideband rotary piezoelectric generator 11 of each version, the piezoelectric cantilever 11c natural frequency of array is all different;
In described I molded breadth frequently rotary piezoelectric generator, axle 17 is positioned on the first electric machine support 10; Support fastening bolt 19a and support clamp nut 19b is utilized the first support 11d and the first electric machine support 10 to be fixed together.Driving wheel 11a in the inner side of piezoelectric cantilever 11c array, the permanent magnet 11b radially aligned of driving wheel 11a surrounding equally distributed permanent magnet 11b and corresponding piezoelectric cantilever beam end;
In described II molded breadth frequently rotary piezoelectric generator, axle 17 is positioned on the first electric machine support 10; Support fastening bolt 19a and support clamp nut 19b is utilized the first support 11d and the first electric machine support 10 to be fixed together; Driving wheel 11a is in the left side of piezoelectric cantilever 11c array, and driving wheel 11a surrounding equally distributed permanent magnet 11b axially aligns with the permanent magnet 11b of corresponding piezoelectric cantilever beam end;
In described III molded breadth frequency rotary piezoelectric generator, axle 17 is positioned on the second electric machine support 10 '; Support fastening bolt 19a and support clamp nut 19b is utilized the first support 11d and the second electric machine support 10 ' to be fixed together; Piezoelectric cantilever 11c array and I type support 11d are about the symmetrical distribution of driving wheel 11a; Driving wheel 11a surrounding equally distributed permanent magnet 11b axially aligns with the permanent magnet 11b of corresponding piezoelectric cantilever beam end;
In described IV molded breadth frequently rotary piezoelectric generator, axle 17 is positioned on the first electric machine support 10; Support fastening bolt 19a and support clamp nut 19b is utilized the first electric machine support 10 and the second support 11d ' to be fixed together; Driving wheel 11a inside the piezoelectric cantilever 11c array of outer ring, in the piezoelectric cantilever 11c left side array of inner ring; Each piezoelectric cantilever beam end permanent magnet radially aligned of driving wheel 11a surrounding equally distributed permanent magnet 11b and corresponding outer ring; Driving wheel 11a, driving wheel 11a surrounding equally distributed permanent magnet 11b axially align with each piezoelectric cantilever beam end permanent magnet of corresponding inner ring;
In described V molded breadth frequency rotary piezoelectric generator, axle 17 is positioned on the second electric machine support 10 '; With support fastening bolt 19a and support clamp nut 19b, the second electric machine support 10 ' and the second support 11d ' are fixed; Piezoelectric cantilever 11c array and the second support 11d ' are about the symmetrical distribution of driving wheel 11a; In the structure of every side, at piezoelectric cantilever 11c end permanent magnet 11b and the corresponding piezoelectric cantilever 11c end permanent magnet 11b radially aligned in outer ring of inner ring;
In described VI molded breadth frequency rotary piezoelectric generator, axle 17 is positioned at the third electric machine support 10 " on; On with support trip bolt 20 the third support 11d " being fixed on the third electric machine support 10 "; Each piezoelectric cantilever 11c is towards driving wheel 11a pivot; Driving wheel 11a is at the third support 11d " inner, the permanent magnet radially aligned of driving wheel 11a surrounding equally distributed permanent magnet 11b and corresponding each piezoelectric cantilever 11c end.
Remarkable result of the present invention is that the natural frequency of array piezoelectric cantilever beam 11c in wideband rotary piezoelectric generator 11 is all different, and thus response band is wider; The rectilinear motion of low frequency can be converted to the rotary motion of high frequency by intermediate conversion parts effectively, and generating efficiency is higher.It is wide that this device has response band, the feature that generating efficiency is high, effectively can collect unstable ocean wave energy.
Accompanying drawing explanation
Accompanying drawing 1 represents rotary wave energy piezoelectric generating device structural representation; Accompanying drawing 2 represents rotary wave energy piezoelectric generating device cutaway view; Accompanying drawing 3 represents intermediate conversion modular construction schematic diagram; Accompanying drawing 4 represents I molded breadth rotary piezoelectric electric generator structure sketch frequently; Accompanying drawing 5 represents II molded breadth rotary piezoelectric electric generator structure sketch frequently; Accompanying drawing 6 III wideband rotary piezoelectric electric generator structure sketch; Accompanying drawing 7 IV wideband rotary piezoelectric electric generator structure sketch; Accompanying drawing 8 V wideband rotary piezoelectric electric generator structure sketch; Accompanying drawing 9 VI wideband rotary piezoelectric electric generator structure sketch; Accompanying drawing 10 piezoelectric cantilever array processing circuit.
Wherein, 1-damping sheet, 2-sliding axle, 3-float body, 4-sealing ring, 5-low sleeve, balancing spring under 6-, 7-intermediate support, 8-tooth bar, 9-gear, the first type electric machine support of 10-, 10a-fixed arm, 10 '-the second electric machine support, 10a '-left fixed arm, 10b '-right fixed arm, 10 "-the third electric machine support, 10a "-inner fixed arm, 10b "-extenal fixation arm, 11-wideband rotary piezoelectric generator, 11a-driving wheel, 11b-permanent magnet, 11c-piezoelectric cantilever, the first support of 11d-, 11d '-the second support, 11d "-the third support, the upper balancing spring of 12-, 13-seal closure, 14-upper sliding sleeve, 15-circuit box, 16-upper bracket, 17-axle, 18-damping sheet clamp nut, 19a-support fastening bolt, 19b-support clamp nut, 20-support trip bolt, 21-rectifier bridge.
Embodiment
The specific embodiment of the present invention is described in detail by reference to the accompanying drawings with technical scheme.A kind of wave energy rotary piezoelectric power generator of the present invention, this device is made up of one-level transducer part, intermediate conversion parts, secondary transducer part and black box.Basic functional principle is the mechanical energy utilizing one-level transducer part wave energy to be converted to form of straight lines; Utilize intermediate conversion parts to convert the mechanical energy of form of straight lines the mechanical energy of rotation formula to, utilize secondary converting member to convert the mechanical energy of rotated versions to electric energy.
Accompanying drawing 1 represents wave energy rotary piezoelectric power generator structural representation.With reference to accompanying drawing 1 and accompanying drawing 2, in the present embodiment, sliding axle 2 end machined external screw thread.Damping sheet 1 can be fixed on the lower end of sliding axle 2 with two damping sheet clamp nuts 18, can as required, the relative position of adjustment damping sheet 1 and sliding axle 2.Float body 3 is cylinder, density of material lower than water density, assurance device in use float body upper surface higher than sea level.Electric machine support utilizes screw to be fixed on float body 3, and upper bracket 16 and electric machine support utilize bolt, nut is fixed.Circuit box 15 utilizes screw to be fixed on upper bracket 16.Upper and lower sliding sleeve 14,5 concentric, plays radial location effect to sliding axle 2, and sliding axle 2 only can slide in upper and lower sliding sleeve 14,5.Intermediate support 7 and sliding axle 2 are fixed together by the mode such as welding.
When Blast Furnace Top Gas Recovery Turbine Unit (TRT) is put into ocean surface, damping sheet 1 and float body 3 produce relative motion under the effect of wave force, and damping sheet 1 drives intermediate support 7 to produce relative rectilinear relative to float body 3 and moves.When float body 3 moves upward from equilbrium position intermediate support 7 relatively, balancing spring 12 in compression, upper balancing spring 12, because being compressed, produces deboost, makes intermediate support 7 get back to equilbrium position.When float body 3 moves downward from equilbrium position intermediate support 7 relatively, the lower balancing spring 6 of compression, lower balancing spring 6, because being compressed, produces deboost, intermediate support 7 also can be made to get back to equilbrium position.The efficiency impact of rigidity on transducing head of upper and lower balancing spring 12,6 is larger.
Sealing ring 4 pairs of Blast Furnace Top Gas Recovery Turbine Unit (TRT) seal further, and the through hole access to plant of seawater in the middle of float body 3 can be avoided inner.Seal closure 13 utilizes screw to be fixed on float body top, can effectively avoid wave to the impact of interior arrangement and seawater access to plant inside.
With reference to accompanying drawing 3, gear (9) and tooth bar (8) engage each other the relative rotary motion that the linear relative movement of damping sheet (1) and float body (3) can be converted to gear (9) and electric machine support; The synchronous axial system of gear (9) and axle (17) realizes by the structure such as general flat key and the shaft shoulder.Intermediate conversion parts and the symmetrical distribution of wideband rotary piezoelectric generator 11, be conducive to the balance of device and the reasonability of design.
Under the sea conditions of reality, damping sheet 1 is constantly change with the relative motion displacement amplitude of float body 3, and even very little, the rectilinear motion of low frequency can be converted to the rotary motion of high frequency by intermediate conversion parts effectively.
By reference to the accompanying drawings 2,3,4,5,6,7,8,9,10, in the present invention, wideband rotary piezoelectric generator 11 has six kinds of multi-form structures, and the feature of these structures is that the natural frequency of the piezoelectric cantilever 11c of local array is all different.The operation principle of wideband rotary piezoelectric generator 11 is, when gear 9 drives driving wheel 11a to rotate, the magnetic field that the permanent magnet 11b being distributed on driving wheel 11a surrounding produces in piezoelectric cantilever 11c free end position constantly changes, and the permanent magnetic that the permanent magnet 11b of piezoelectric cantilever 11c free end is subject under the effect of variation magnetic field constantly changes.Permanent magnetic is determined with the Distance geometry pole orientation of the permanent magnet being fixed on piezoelectric cantilever 11c free end by the permanent magnet 11b being distributed on driving wheel 11a surrounding.Piezoelectric cantilever 11c, under end permanent magnet 11b drives, constantly produces alternate stress, according to direct piezoelectric effect, and the continuous generation current of the upper and lower electrode of piezoelectric cantilever 11c piezoelectric layer.By respective rectifier bridge 21 by electric energy supply load R, relevant connecting circuit and electronic device are placed in circuit box 15.
I molded breadth frequency rotary piezoelectric electric generator structure sketch as shown in Figure 4.Bearing and I type electric machine support 10 is utilized to realize the location of axle 17.Support fastening bolt 19a and support clamp nut 19b is utilized the first support 11d and the first electric machine support 10 to be fixed together.The support arm length of the first support 11d can be identical, also can be different, and main purpose is that the piezoelectric cantilever 11c realizing different natural frequencies aligns at free end.The displacement of piezoelectric cantilever 11c free end is subject to the restriction of the spacing of exciting wheel 11a and piezoelectric cantilever 11c, and piezoelectric cantilever 11c free end should be avoided to strike on driving wheel 11a.Driving wheel 11a, in the inner side of piezoelectric cantilever 11c array, can reduce the axial length of wideband rotary piezoelectric generator 11.
II molded breadth frequency rotary piezoelectric electric generator structure sketch as shown in Figure 5.Bearing and the first electric machine support 10 is utilized to realize the location of axle 17.Support fastening bolt 19a and support clamp nut 19b is utilized the first support 11d and the first electric machine support 10 to be fixed together.The support arm length of the first support 11d can be identical, also can be different, and main purpose is that the piezoelectric cantilever 11c realizing different natural frequencies aligns at free end.Driving wheel 11a is in the left side of piezoelectric cantilever 11c array, and therefore, the displacement of piezoelectric cantilever 11c free end is not by driving wheel 11a structural limitations.
III molded breadth frequency rotary piezoelectric electric generator structure sketch as shown in Figure 6.Bearing and the second electric machine support 10 ' is utilized to realize the location of axle 17.Support fastening bolt 19a and support clamp nut 19b is utilized the first support 11d and the second electric machine support 10 ' to be fixed together.The support arm length of the first support 11d can be identical, also can be different, and main purpose is that the piezoelectric cantilever 11c realizing different natural frequencies aligns at free end.Piezoelectric cantilever 11c array and the first support 11d, about the symmetrical distribution of driving wheel 11a, can increase the number of array piezoelectric cantilever beam 11c, improve the power output of wideband rotary piezoelectric generator 11.
The structure diagram of IV molded breadth frequency rotary piezoelectric generator 11 as shown in Figure 7.Bearing and the first electric machine support 10 is utilized to realize the location of axle 17.Support fastening bolt 19a and support clamp nut 19b is utilized the second support 11d ' and the first electric machine support 10 to be fixed together.The support arm length of the second support 11d ' can be identical, also can be different, and main purpose is that the free end of the piezoelectric cantilever 11c realizing inside and outside circle aligns separately respectively.The second support 11d ' surrounding is uniform-distribution with two circle piezoelectric cantilever 11c arrays, can increase the number of array piezoelectric cantilever beam 11c, improves the power output of rotary piezoelectric generator.
V molded breadth frequency rotary piezoelectric electric generator structure sketch as shown in Figure 8.Bearing and the second electric machine support 10 ' is utilized to realize the location of axle 17.Support fastening bolt 19a and support clamp nut 19b is utilized the second support 11d ' and the second electric machine support 10 ' to be fixed together.The support arm length of the second support 11d ' can be identical, also can be different, and main purpose is that the free end realizing each piezoelectric cantilever 11c aligns separately respectively.Piezoelectric cantilever 11c array and the second support 11d ', about the symmetrical distribution of driving wheel 11a, can increase the number of array piezoelectric cantilever beam 11c, improve the power output of wideband rotary piezoelectric generator 11.
VI molded breadth frequency rotary piezoelectric generator sketch as shown in Figure 9.Bearing and the third electric machine support 10 is utilized " to realize the location of axle 17.On the third support 11d " is fixed on the third electric machine support 10 " by the support trip bolt 20 utilizing about two to distribute.The third support 11d " support arm length can be identical, also can be different, main purpose is tangentially alignd at circumference for realizing each piezoelectric cantilever 11c free end.Driving wheel 11a is at support 11d " inner, greatly can reduce the axial dimension of wideband rotary piezoelectric generator 11.
Figure 10 represents piezoelectric cantilever 11c array processing circuit.The alternating current that each piezoelectric cantilever 11c produces carries out rectification through rectifier bridge 21, and the direct current obtained is in parallel is directly load R energy supply.
The natural frequency of each piezoelectric cantilever 11c is different, and the responsive bandwidth main cause can widening wideband rotary piezoelectric generator 11 is: piezoelectric cantilever 11c is maximum in resonance driving frequency left and right power output.When the natural frequency of each piezoelectric cantilever 11c is different, also just mean that resonance driving frequency is different.For the wideband rotary piezoelectric generator 11 that the piezoelectric cantilever 11c different by natural frequency forms, its resonance driving frequency is distributed in a certain scope, and thus this generator has very large bandwidth.
The rectilinear motion of low frequency can be converted to the rotary motion of high frequency by the middle transducer part of this device effectively.The equally distributed permanent magnet 11b of driving wheel 11a surrounding can improve the power output of wideband rotary piezoelectric generator 11 further, and main cause is: the number of the equally distributed permanent magnet 11b of driving wheel 11a surrounding decides the frequency being applied to piezoelectric cantilever 11c end active force.The number of driving wheel 11a surrounding equally distributed permanent magnet 11b is more, and the frequency being applied to piezoelectric cantilever 11c end active force is larger, and piezoelectric cantilever 11c power output is higher.In the middle of utilizing, the structure of transducer part and the equally distributed permanent magnet 11b of driving wheel 11a surrounding can increase the power output of wideband rotary piezoelectric generator 11 greatly.During use, whole wave power device can utilize single or many root systems pool line to act on float body and realize locating in ocean.
A kind of wave energy rotary piezoelectric generation device of the present invention, has response band wide, the advantage that generating efficiency is high, is applicable to collecting ocean wave energy, can be ocean wireless sensing net node or low power dissipation electron device with energy.
Claims (3)
1. a rotary wave energy piezoelectric generating device, is characterized in that, this device is made up of one-level transducer part, intermediate conversion parts, secondary transducer part and black box; Described one-level transducer part is by damping sheet (1), sliding axle (2), damping sheet clamp nut (18), float body (3), upper and lower sliding sleeve (14,5), upper and lower balancing spring (12,6), intermediate support (7) and upper bracket (16) composition; Described middle transducer part is by tooth bar (8), and gear (9) and axle (17) form; Described secondary transducer part, by electric machine support, wideband rotary piezoelectric generator (11), rectifier bridge (21) and circuit box (15) composition; Described electric machine support has the first electric machine support (10), the second electric machine support (10 ') or the third electric machine support (10 "); Described black box is made up of sealing ring (4) and seal closure (13);
In described one-level transducer part, damping sheet (1) utilizes damping sheet clamp nut (18) to be fixed on sliding axle (2) one end; Intermediate support (7) and sliding axle (2) are rigidly connected; Electric machine support is fixed on float body (3) top, and upper bracket (16) is fixed on electric machine support top; Upper sliding sleeve (14) is fixed on upper bracket (16) bottom, and low sleeve (5) is fixed on float body (3) top; Upper balancing spring (12) is arranged between upper sliding sleeve (14) and intermediate support (7); Lower balancing spring (6) is arranged between low sleeve (5) and intermediate support (7); Sliding axle (2) slides in upper and lower sliding sleeve (14,5);
In described black box, it is inner that sealing ring (4) is fixed on float body (3) by low sleeve (5), and seal closure (13) is fixed on float body (3) top;
In described middle transducer part, middle transducer part and wideband rotary piezoelectric generator (11) symmetrical distribution; Tooth bar (8) is fixed on intermediate support (7), gear (9) and axle (17) synchronous axial system, utilize bearing to be fixed on electric machine support by axle (17), tooth bar (8) and gear (9) engage each other;
In described secondary transducer part, wideband rotary piezoelectric generator (11) by driving wheel (11a), several permanent magnets (11b), several piezoelectric cantilevers (11c), support and securing member form; Described support has the first support (11d), the second support (11d ') or the third support (11d "); Described securing member is support fastening bolt (19a) and support clamp nut (19b) or support trip bolt (20); Securing member is utilized to realize the fixing of support and electric machine support; Several permanent magnets (11b) uniform array is in driving wheel (11a) surrounding; Driving wheel (11a) and axle (17) synchronous axial system; Piezoelectric cantilever (11c) uniform array that several natural frequencys are different is on support, and the free end of each piezoelectric cantilever (11c) is fixed with permanent magnet (11b); Axle (17) and support dead in line, support is fixed on electric machine support; Rectifier bridge (21) converts the alternating current that piezoelectric cantilever (11c) produces to direct current to load R energy supply; Circuit box (15) is arranged on upper bracket (16).
2. a kind of rotary wave energy piezoelectric generating device as claimed in claim 1, is characterized in that, in described secondary transducer part, the first support (11d) surrounding be uniform-distribution with a circle parallel axes to several support arms; The second support (11d ') surrounding be uniform-distribution with two circle parallel axes to several support arms; (11d ") surrounding is uniform-distribution with several support arms pointing to axle center to the third support; The first electric machine support (10) utilizes fixed arm (10a) to fix the first support (11d) or the second support (11d '); The second electric machine support (10 ') utilizes left fixed arm (10a ') and right fixed arm (10b ') to fix the first support (11d) or the second support (11d '); In the third electric machine support (10 ") utilizes, fixed arm (10a ") and extenal fixation arm (10b ") fix the third support (11d ").
3. a kind of rotary wave energy piezoelectric generating device as claimed in claim 1 or 2, it is characterized in that, in described secondary transducer part, wideband rotary piezoelectric generator (11) has 6 kinds of versions, and these 6 kinds of versions are respectively I molded breadth rotary piezoelectric generator, II molded breadth rotary piezoelectric generator, III molded breadth rotary piezoelectric generator, IV molded breadth rotary piezoelectric generator, V molded breadth rotary piezoelectric generator and VI molded breadth rotary piezoelectric generator frequently frequently frequently frequently frequently frequently; In the wideband rotary piezoelectric generator (11) of each version, piezoelectric cantilever (11c) natural frequency of array is all different;
In described I molded breadth frequently rotary piezoelectric generator, axle (17) is positioned on the first electric machine support (10); Support fastening bolt (19a) and support clamp nut (19b) is utilized the first support (11d) and the first electric machine support (10) to be fixed together; Driving wheel (11a) in the inner side of piezoelectric cantilever (11c) array, permanent magnet (11b) radially aligned of the equally distributed permanent magnet of driving wheel (11a) surrounding (11b) and corresponding piezoelectric cantilever beam end;
In described II molded breadth frequently rotary piezoelectric generator, axle (17) is positioned on the first electric machine support (10); Support fastening bolt (19a) and support clamp nut (19b) is utilized the first support (11d) and the first electric machine support (10) to be fixed together; Driving wheel (11a) is in the left side of piezoelectric cantilever (11c) array, and the equally distributed permanent magnet of driving wheel (11a) surrounding (11b) is axially aligned with the permanent magnet (11b) of corresponding piezoelectric cantilever beam end;
In described III molded breadth frequency rotary piezoelectric generator, axle (17) is positioned on the second electric machine support (10 '); Support fastening bolt (19a) and support clamp nut (19b) is utilized the first support (11d) and the second electric machine support (10 ') to be fixed together; Piezoelectric cantilever (11c) array and the first support (11d) are about driving wheel (11a) symmetrical distribution; The equally distributed permanent magnet of driving wheel (11a) surrounding (11b) is axially aligned with the permanent magnet (11b) of corresponding piezoelectric cantilever beam end;
In described IV molded breadth frequently rotary piezoelectric generator, axle (17) is positioned on the first electric machine support (10); Support fastening bolt (19a) and support clamp nut (19b) is utilized the first electric machine support (10) and the second support (11d ') to be fixed together; Driving wheel (11a) inside piezoelectric cantilever (11c) array of outer ring, in piezoelectric cantilever (11c) left side array of inner ring; Each piezoelectric cantilever beam end permanent magnet radially aligned of the equally distributed permanent magnet of driving wheel (11a) surrounding (11b) and corresponding outer ring; Driving wheel (11a), the equally distributed permanent magnet of driving wheel (11a) surrounding (11b) is axially aligned with each piezoelectric cantilever beam end permanent magnet of corresponding inner ring;
In described V molded breadth frequency rotary piezoelectric generator, axle (17) is positioned on the second electric machine support (10 '); With support fastening bolt (19a) and support clamp nut (19b), the second electric machine support (10 ') and the second support (11d ') are fixed; Piezoelectric cantilever (11c) array and the second support (11d ') are about driving wheel (11a) symmetrical distribution; In the structure of every side, at piezoelectric cantilever (11c) end permanent magnet (11b) of inner ring and the corresponding piezoelectric cantilever in outer ring (11c) end permanent magnet (11b) radially aligned;
In described VI molded breadth frequency rotary piezoelectric generator, axle (17) is positioned at the third electric machine support (on 10 "); The third support (11d ") is fixed on the third electric machine support (10 ") with support trip bolt (20); Each piezoelectric cantilever (11c) is towards driving wheel (11a) pivot; (11d ") is inner, the permanent magnet radially aligned of the equally distributed permanent magnet of driving wheel (11a) surrounding (11b) and corresponding each piezoelectric cantilever (11c) end at the third support for driving wheel (11a).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310204769.0A CN103337986B (en) | 2013-05-28 | 2013-05-28 | Rotary wave energy piezoelectric power generation apparatus |
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| CN201310204769.0A CN103337986B (en) | 2013-05-28 | 2013-05-28 | Rotary wave energy piezoelectric power generation apparatus |
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| CN103337986A CN103337986A (en) | 2013-10-02 |
| CN103337986B true CN103337986B (en) | 2015-06-10 |
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| CN105114239B (en) * | 2015-08-18 | 2017-07-28 | 郭晨 | A kind of controllable posture wave-power device based on linear electric generator |
| CN105089918B (en) * | 2015-08-19 | 2017-07-07 | 中国船舶重工集团公司第七一〇研究所 | A kind of wave energy generating set based on piezoelectric element |
| CN105134473B (en) * | 2015-08-26 | 2017-11-03 | 哈尔滨工业大学 | Swash tide energy conversion equipment of flapping in bionical hydrofoil whirlpool |
| CN106050538B (en) * | 2016-06-08 | 2019-12-20 | 上海电机学院 | Sea wave piezoelectric power generation device |
| CN107592033B (en) * | 2017-10-31 | 2019-04-05 | 长春工业大学 | A kind of rotary type magnetic force based on bistable state wideband structure stirs piezoelectric harvester |
| CN108825427B (en) * | 2018-05-25 | 2020-05-12 | 北京航空航天大学 | Mechanical rectification type sea wave energy-absorbing power generation device |
| CN112737411A (en) * | 2021-01-11 | 2021-04-30 | 浙大宁波理工学院 | Piezoelectric power generation device |
| CN113294283B (en) * | 2021-07-22 | 2022-08-09 | 山东省科学院海洋仪器仪表研究所 | Wave energy power generation device with flexible transduction-seal structure |
| CN114204848B (en) * | 2021-12-06 | 2024-06-04 | 海南浙江大学研究院 | Small-sized deep sea omnibearing ocean current energy capturing power generation device based on piezoelectric effect |
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| JP3170752U (en) * | 2011-07-15 | 2011-09-29 | 水田 謝 | Power generator |
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