CN111342701A - Tumbler type multi-wind-direction wind-force piezoelectric power generation device with nonlinear magnetic disturbance - Google Patents
Tumbler type multi-wind-direction wind-force piezoelectric power generation device with nonlinear magnetic disturbance Download PDFInfo
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- CN111342701A CN111342701A CN202010258438.5A CN202010258438A CN111342701A CN 111342701 A CN111342701 A CN 111342701A CN 202010258438 A CN202010258438 A CN 202010258438A CN 111342701 A CN111342701 A CN 111342701A
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- 238000010248 power generation Methods 0.000 title claims abstract description 54
- 239000003381 stabilizer Substances 0.000 claims abstract description 39
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 238000004146 energy storage Methods 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 230000005284 excitation Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 9
- 238000011084 recovery Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 210000004177 elastic tissue Anatomy 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/185—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
Abstract
The invention discloses a tumbler type nonlinear magnetic force disturbed multi-wind-direction wind power piezoelectric power generation device, relates to the technical field of new energy power generation, and can capture wind energy in any direction to perform piezoelectric power generation. The device comprises two parts of power generation units: the first part is a magnetic vibration power generation part, incoming wind in any direction applies an excitation to the cylindrical rigid body, the cylindrical rigid body drives the tumbler-type stabilizer to swing under the excitation, the piezoelectric vibrator generates nonlinear vibration response under the disturbance of magnetic force, and wind energy is converted into electric energy; the second part is a collision power generation part, balance balls in the tumbler stabilizer roll by the swing of the tumbler stabilizer and magnetic disturbance, the balance balls impact the piezoelectric fiber layer, and the piezoelectric fiber layer deforms to generate electric energy. The piezoelectric power generation device not only is well suitable for the action environment of natural wind, but also improves the power generation efficiency by adopting the arrangement mode of the circumferential array, and solves the problems of limitation and low efficiency that the traditional piezoelectric power generation device can only receive wind coming from a single direction.
Description
Technical Field
The invention belongs to the field of energy capture of nonlinear magnetic vibration power generation and piezoelectric power generation, and particularly relates to a tumbler type nonlinear magnetic disturbance multi-wind-direction wind power piezoelectric power generation device.
Background
With the rapid development of the electromechanical industry, the wireless sensor technologies such as micro-electromechanical systems (MEMS), low power consumption embedded technologies and the like tend to be integrated, intelligent and miniaturized more and more. Therefore, higher demands are put on the energy supply industry, but as the traditional energy supply industry is still in a standstill, the defects of battery power supply are slowly revealed (small capacity, short service life, difficult recovery and easy heavy metal pollution), and the development of the wireless sensing technology is severely limited. The utilization of clean energy to power low-energy electronic devices has become an important research direction.
The energy (wind energy, solar energy, tidal energy and the like) existing in nature is converted into electric energy to supply power to equipment, and the method is an ideal energy harvesting method. The wind energy is clean, abundant in reserve and zero in cost, is pollution-free, generates electricity by utilizing inexhaustible wind energy in the nature, is the most economical and feasible power supply mode in windy areas, particularly remote areas, and is mainly used for capturing wind energy in a single direction in the traditional wind power generation device. In view of the above, a tumbler type nonlinear magnetic disturbance multi-wind-direction wind power piezoelectric power generation device is provided, a cylindrical rigid body is made to generate vibration to a certain degree by utilizing wind power so as to drive the whole piezoelectric power generation device to swing, meanwhile, a cantilever beam can generate nonlinear vibration due to magnetic disturbance, and finally, piezoelectric ceramic plates adhered to the cantilever beam and a piezoelectric fiber layer on the inner wall of a tumbler type stabilizer generate a positive piezoelectric effect to generate electric energy. The device can capture wind energy in any direction in nature, well adapts to the action environment of natural wind, and greatly improves the utilization efficiency of the wind energy.
Disclosure of Invention
In order to solve the limitation and the inefficiency that the traditional wind driven generator can only be excited by wind power in a single direction for generating power, the invention provides a tumbler type multi-wind-direction wind power piezoelectric power generation device with nonlinear magnetic disturbance.
The technical scheme of the invention is as follows: the utility model provides a many wind directions wind-force piezoelectric power generation device of nonlinear magnetic disturbance of tumbler formula which characterized in that: the device consists of a cylindrical rigid body, a permanent magnet, a piezoelectric ceramic piece, a cantilever beam, a cantilever clamp, a tumbler-type stabilizer, a base, a fixing frame, an annular magnet, a substrate, an electric energy storage, piezoelectric fibers and balance beads; the rigid body is connected with the cantilever clamp, the cantilever beams are fixedly connected around the cantilever clamp and are symmetrically distributed, and the permanent magnet and the piezoelectric ceramic sheet are respectively stuck to the front end and the upper and lower surfaces of the cantilever beams so as to form a magnetic vibration power generation part; the tumbler type stabilizer is internally provided with balance beads and is placed on the base, and a layer of elastic fiber is adhered to the wall surface of the tumbler type stabilizer to form a collision power generation part; the fixing frame is fixed with an annular magnet and connected with the substrate, and the piezoelectric power generation source is wrapped in the fixing frame to form an enclosure part of the device; the electric energy storage device is positioned at the center of the whole structure and is fixed on the substrate, so that an electric energy storage part of the device is formed; a plurality of power generation sources of the device are circumferentially arrayed on the substrate.
Furthermore, the cantilever clamp is a circular four-port cantilever clamp, four cantilever beams are fixed on each four-port cantilever clamp, and included angles between the cantilever beams are 45 degrees and 135 degrees and are symmetrically distributed on two sides of the four-port cantilever clamp.
Furthermore, the cylindrical rigid body is fixed on the upper surface of the center of the four-opening cantilever clamp, is far higher than other parts of the device, and is a main part for capturing wind energy.
Furthermore, the base is a cube, a circular groove is formed in the center of the base, and the depth of the groove is two thirds of the height of the tumbler-type stabilizer.
Furthermore, the fixing frame is a circumference fixing frame, the height of the fixing frame reaches the root position of the cylindrical rigid body, the fixing frame is divided into a large circumference fixing frame and a small circumference fixing frame, and the two fixing frames are respectively fixed on the inner side and the outer side of the power generation source.
The invention has the beneficial effects that: the invention provides a tumbler type nonlinear magnetic force disturbed multi-wind-direction wind power piezoelectric generating device, wind in any direction can give an excitation to a cylindrical rigid body, so that the cylindrical rigid body generates vortex-induced vibration to further drive a tumbler type stabilizer to swing; the cantilever beams are symmetrically distributed on two sides of the cantilever clamp, and the tumbler-type stabilizer swings in any direction to enable the two cantilever beams to vibrate due to the action of magnetic repulsion, so that magnetic vibration is utilized to generate electricity to the maximum extent; the balance beads in the tumbler-type stabilizer further utilize kinetic energy generated by the tumbler-type stabilizer through swinging to collide with the piezoelectric fiber layer to generate electric energy; the groove in the square base plays a role in limiting the swing of the power generation device so that the power generation device cannot be excessively inclined; the efficient energy recovery circuit in the electric energy storage can reduce the loss of the electric energy in the circuit during the recovery of the electric energy and improve the recovery efficiency of the electric energy; the device arranges the single power generation sources in a circumferential array mode, improves the energy conversion efficiency and the total power generation amount of the whole device, and solves the problems that the traditional wind power generation device can only receive the limitation of single wind direction power generation and the single piezoelectric power generation device has low power generation efficiency.
Drawings
FIG. 1 is a three-dimensional schematic of a power plant.
Figure 2 schematic of a piezoelectric generator.
Figure 3 a cross-sectional view of a piezoelectric generator.
Fig. 4 is a schematic view of a piezoelectric vibrator.
Detailed Description
The embodiment of the device is further explained with reference to fig. 1 to 4, and the tumbler-type nonlinear magnetic force disturbance multi-wind-direction wind-force piezoelectric power generation device comprises a cylindrical rigid body 1, a permanent magnet 2, a piezoelectric ceramic sheet 3, a cantilever beam 4, a four-opening cantilever clamp 5, a tumbler-type stabilizer 6, a square base 7, a circumferential fixing frame 8, an annular magnet 9, a substrate 10, an electric energy storage 11, a piezoelectric fiber 12 and a balance bead 13; the piezoelectric ceramic pieces 3 are pasted on the front and back surfaces of the cantilever beam 4 to form a piezoelectric vibrator, and the permanent magnets 2 are pasted on the front and back surfaces of the cantilever beam 4 to form a magnetic vibration power generation part together with the piezoelectric vibrator; the interior of the tumbler type stabilizer 6 is provided with a balance bead 13, and the wall surface of the tumbler type stabilizer 6 is adhered with a layer of elastic fiber 12 to form a collision power generation part.
The specific embodiment of the magnetic vibration power generation part of the device is further explained by combining fig. 2 and fig. 4, the cylindrical rigid body 1 is positioned at the topmost end of the whole device so as to receive wind excitation in any direction, the cylindrical rigid body 1 can capture and convert wind energy in any direction into vortex-induced vibration energy of the cylindrical rigid body 1, and the vortex-induced vibration energy generated by the cylindrical rigid body 1 drives the tumbler type stabilizer 6 to swing in the square base 7; the permanent magnet 2 is adhered to the front surface and the back surface of the cantilever beam 4, and when the tumbler type stabilizer 6 swings, the permanent magnet 2 and the annular magnet 9 on the circumferential fixing frame 8 vibrate the cantilever beam 4 under the action of magnetic repulsion; the piezoelectric ceramic pieces 3 are adhered to the front surface and the back surface of the cantilever beam 4, the space on the cantilever beam 4 is fully utilized to maximize the power generation efficiency, and when the cantilever beam 4 vibrates due to magnetic force, the piezoelectric ceramic pieces 3 adhered to the cantilever beam 4 are bent and deformed due to the vibration of the cantilever beam 4 to generate a positive piezoelectric effect; the cantilever beam 4 is fixed on the four-opening cantilever clamp 5, and the piezoelectric ceramic piece 3 and the permanent magnet 2 are respectively stuck to the front end, the upper surface and the lower surface of the cantilever beam 4 to form the main part of magnetic vibration power generation. The four-opening cantilever clamp 5 is a cylinder, the four-opening cantilever clamp 5 is seamlessly connected with the tumbler type stabilizer 6, dust and the like are effectively prevented from entering the tumbler type stabilizer 6, the four-opening cantilever clamp 5 is positioned between the cylinder rigid body 1 and the tumbler type stabilizer 6, the connection effect is achieved, and the four cantilever beams 4 are symmetrically fixed on the four-opening cantilever clamp 5; the tumbler type stabilizer 6 is a hollow hemisphere, is positioned at the lower end of the whole device and is placed in a semicircular groove of the square base 7, and when the cylindrical rigid body 1 is excited by wind, the tumbler type stabilizer 6 is driven to swing, so that the whole device is driven to swing from bottom to top; the square base 7 is a cube, a circular groove is formed in the center of the square base, the tumbler type stabilizer 6 is placed in the square base 7, the square base 7 has a fixing effect on the tumbler type stabilizer 6, the inclination of the tumbler type stabilizer 6 is limited, and the cantilever beam 4 and the circumference fixing frame 8 are kept at a certain distance all the time.
The specific embodiment of the enclosure part of the device is further explained by combining fig. 1, the circumferential fixing frames 8 are respectively a large circumferential fixing frame and a small circumferential fixing frame, a plurality of power generation sources are circumferentially arrayed between the two fixing frames, an electric energy storage 11 is arranged in the small circumferential fixing frame, an upper row and a lower row of annular magnets 9 are fixed on the circumferential fixing frame 8, the height of the circumferential fixing frame 8 reaches the position of the root of the cylindrical rigid body 1, and the cylindrical rigid body 1 cannot be prevented from receiving excitation of any wind direction; the annular magnet 9 is divided into an upper ring and a lower ring and is fixed on the circumferential fixing frame 8, when the permanent magnet 2 on the cantilever beam 4 is close to the annular magnet 9, the annular magnet 9 can provide a magnetic force for the permanent magnet 2 to enable the cantilever beam 4 to generate nonlinear vibration, and the distance between the two annular magnets 9 is enough to enable the cantilever beam 4 to vibrate freely therein; the substrate 10 is a disk-like shape and is the basis of the entire device.
The embodiment of the electric energy storage part of the device is further explained with reference to fig. 1, the electric energy storage 11 is in a cube shape and is located in the middle of the small circumference fixing frame 8, and the electric energy storage 11 contains an efficient energy recovery circuit, so that electric energy generated by the whole device can be collected and stored and can supply power to low-energy-consumption electronic products.
The specific embodiment of the collision power generation part of the device is further explained by combining fig. 3, the piezoelectric fiber 12 is adhered to the inner wall of the tumbler-type stabilizer 6, and when the tumbler-type stabilizer 6 swings, the balance beads 13 inside the tumbler-type stabilizer will give a collision force to the piezoelectric fiber 12, so that the piezoelectric fiber 12 is deformed to generate a positive piezoelectric effect; the balance ball 13 can roll in a universal direction, and when the tumbler-type stabilizer 6 swings, the balance ball 13 rolls under the influence of the swing of the tumbler-type stabilizer 6.
The working principle is as follows: under a certain wind speed, wind in any direction excites the cylindrical rigid body 1, the cylindrical rigid body 1 drives the tumbler type stabilizer 6 to swing, the cantilever beams 4 on the four-opening cantilever clamp 5 gradually approach the circumferential fixing frame 8 due to the swing of the tumbler type stabilizer 6, when the distance is small enough, the cantilever beams 4 generate nonlinear vibration due to the magnetic force action between the permanent magnets 2 and the annular magnets 9, meanwhile, the piezoelectric ceramic piece 3 bends and deforms to generate positive piezoelectric effect, electric energy is generated, when the permanent magnets 2 on the cantilever beams 4 reach between the two annular magnets 9, the two annular magnets 9 uninterruptedly give magnetic repulsion force to the permanent magnets 2, the cantilever beams 4 repeatedly bend, recover and bend, the piezoelectric ceramic piece 3 continuously deforms to generate positive piezoelectric effect, electric energy is output, and the process is a magnetic vibration power generation part.
When the tumbler-type stabilizer 6 swings, the balance beads 13 in the tumbler-type stabilizer 6 roll around and give a collision force to the piezoelectric fibers 12 on the inner wall of the tumbler-type stabilizer 6, so that the piezoelectric fibers 12 deform to generate a positive piezoelectric effect and generate electric energy, and after the balance beads 13 move, the piezoelectric fibers 12 restore to the original state to generate the positive piezoelectric effect and generate the electric energy, wherein the process is a collision power generation part.
Because wind has time-varying property, the magnetic force of the two annular magnets 9 on the permanent magnet 2 cannot be equal, so that the device reaches a balanced state, and the magnetic force of one annular magnet 9 on the permanent magnet 2 is certainly greater than that of the other annular magnet, so that the process can be continuously circulated, and the piezoelectric vibrator and the piezoelectric fiber 12 can continuously convert energy into electric energy; the electric energy generated by the piezoelectric generator is alternating current, so that the alternating current is converted into direct current through a recovery circuit in the electric energy storage 11 and then is stored in the electric energy storage 11 to supply power for low-energy-consumption electronic products.
In the above specific embodiment, the tumbler-type nonlinear magnetic-force-disturbed multi-wind-direction wind-force piezoelectric power generation device has the advantage of being capable of receiving any wind direction, the circumferential array solves the problem of low energy capturing efficiency of a single piezoelectric power generator, the wind force resource is utilized to the maximum extent, the power generation efficiency of wind power generation is improved, the limitation that the traditional wind power generation device can only capture wind energy in a single direction is broken through, and the device is simple in structure, low in cost and wide in application range.
Claims (5)
1. The utility model provides a many wind directions wind-force piezoelectric power generation device of nonlinear magnetic disturbance of tumbler formula which characterized in that: the device consists of a cylindrical rigid body, a permanent magnet, a piezoelectric ceramic piece, a cantilever beam, a cantilever clamp, a tumbler-type stabilizer, a base, a fixing frame, an annular magnet, a substrate, an electric energy storage, piezoelectric fibers and balance beads; the rigid body is connected with the cantilever clamp, the cantilever beams are fixedly connected around the cantilever clamp and are symmetrically distributed, and the permanent magnet and the piezoelectric ceramic sheet are respectively stuck to the front end and the upper and lower surfaces of the cantilever beams so as to form a magnetic vibration power generation part; the tumbler type stabilizer is internally provided with balance beads and is placed on the base, and a layer of piezoelectric fibers is adhered to the wall surface of the tumbler type stabilizer to form a collision power generation part; the fixing frame is fixed with an annular magnet and connected with the substrate, and the power generation source is wrapped in the fixing frame to form a surrounding part of the device; the electric energy storage device is positioned at the center of the whole structure and is fixed on the substrate, so that an electric energy storage part of the device is formed; a plurality of power generation sources of the device are circumferentially arrayed on the substrate.
2. The tumbler-type nonlinear magnetic force disturbed multi-wind-direction wind power piezoelectric power generation device according to claim 1, characterized in that: the cantilever clamp is a circular four-opening cantilever clamp, four cantilever beams are fixed on each four-opening cantilever clamp, and the included angle between the cantilever beams is 45 degrees and 135 degrees.
3. A tumbler-like non-linear magnetic force perturbed multi-wind-direction wind power piezoelectric power generating apparatus according to claim 2, characterized in that: the cylindrical rigid body is fixed on the upper surface of the center of the four-opening cantilever clamp and is far higher than other parts of the device.
4. The tumbler-type nonlinear magnetic force disturbed multi-wind-direction wind power piezoelectric power generation device according to claim 1, characterized in that: the base is a cube, a circular groove is formed in the center of the base, and the depth of the groove is two thirds of the height of the tumbler-type stabilizer.
5. A tumbler-like non-linear magnetic force perturbed multi-wind-direction wind power piezoelectric power generating apparatus according to claim 3, characterized in that: the fixing frame is a circumferential fixing frame, the height of the fixing frame reaches the root position of the cylindrical rigid body, and the two fixing frames are respectively fixed on the inner side and the outer side of the power generation source.
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| CN202010258438.5A CN111342701B (en) | 2020-04-03 | 2020-04-03 | Tumbler type multi-wind-direction wind-force piezoelectric power generation device with nonlinear magnetic disturbance |
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| CN202010258438.5A CN111342701B (en) | 2020-04-03 | 2020-04-03 | Tumbler type multi-wind-direction wind-force piezoelectric power generation device with nonlinear magnetic disturbance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852771A (en) * | 2020-07-29 | 2020-10-30 | 西南石油大学 | Small wind power generation device and method adaptive to wind direction and wind speed |
| CN111884542A (en) * | 2020-08-07 | 2020-11-03 | 山东理工大学 | Wind power piezoelectric power generation device based on full wind direction vortex-induced vibration |
| CN113067501A (en) * | 2021-04-15 | 2021-07-02 | 山东理工大学 | Wind-gathering switch door type piezoelectric-electromagnetic power generation device |
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| CN107994808A (en) * | 2017-12-10 | 2018-05-04 | 北京工业大学 | Alternation flexion type wind-force piezoelectric energy collector |
| CN108462403A (en) * | 2018-03-13 | 2018-08-28 | 吉林大学 | A kind of double working modes wideband bistable state piezoelectric generating device |
| CN110034704A (en) * | 2019-05-20 | 2019-07-19 | 山东理工大学 | A kind of non-linear piezoelectric generating device of wind-force array magnetic force |
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2020
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| CN202663322U (en) * | 2012-05-28 | 2013-01-09 | 南京航空航天大学 | Rotary piezoelectric power generating device |
| CN107994808A (en) * | 2017-12-10 | 2018-05-04 | 北京工业大学 | Alternation flexion type wind-force piezoelectric energy collector |
| CN108462403A (en) * | 2018-03-13 | 2018-08-28 | 吉林大学 | A kind of double working modes wideband bistable state piezoelectric generating device |
| CN110034704A (en) * | 2019-05-20 | 2019-07-19 | 山东理工大学 | A kind of non-linear piezoelectric generating device of wind-force array magnetic force |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111852771A (en) * | 2020-07-29 | 2020-10-30 | 西南石油大学 | Small wind power generation device and method adaptive to wind direction and wind speed |
| CN111884542A (en) * | 2020-08-07 | 2020-11-03 | 山东理工大学 | Wind power piezoelectric power generation device based on full wind direction vortex-induced vibration |
| CN111884542B (en) * | 2020-08-07 | 2022-06-21 | 山东理工大学 | Wind power piezoelectric power generation device based on full wind direction vortex-induced vibration |
| CN113067501A (en) * | 2021-04-15 | 2021-07-02 | 山东理工大学 | Wind-gathering switch door type piezoelectric-electromagnetic power generation device |
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