CN110492788A - A kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling - Google Patents
A kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling Download PDFInfo
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- CN110492788A CN110492788A CN201910896352.2A CN201910896352A CN110492788A CN 110492788 A CN110492788 A CN 110492788A CN 201910896352 A CN201910896352 A CN 201910896352A CN 110492788 A CN110492788 A CN 110492788A
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- cantilever beam
- piezoelectricity
- electromagnetic coupling
- permanent magnet
- mass block
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- 238000010168 coupling process Methods 0.000 title claims abstract description 44
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 44
- 230000008878 coupling Effects 0.000 title claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 24
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 230000005389 magnetism Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001504664 Crossocheilus latius Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000005036 potential barrier Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
-
- 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
Abstract
The invention discloses a kind of multi-direction vibration prisoner energy devices of the up-conversion of piezoelectricity-electromagnetic coupling, including fixed pedestal, bearing, rotating mass block and at least one piezoelectricity-electromagnetic coupling cantilever beam, it is characterized in that at least one piezoelectricity-electromagnetic coupling cantilever beam is circumferentially mounted on the axis of fixed pedestal, piezoelectricity-electromagnetic coupling cantilever beam includes piezoelectric patches, cantilever beam, coil, permanent magnet on beam, piezoelectric patches collecting energy is arranged in the surface of each cantilever beam, permanent magnet is placed on cantilever beam free end as mass block on beam, the coil of one collecting energy is set on the fixed pedestal on beam below the axial direction of permanent magnet, one bearing is installed on the central axis of fixed pedestal, one rotating mass block is set on bearing outer ring, at least one permanent magnet is provided on rotating mass block, from permanent magnetism on shaft core position and cantilever beam Body is corresponding, which can convert extraneous low-frequency vibration to the resonance of piezoelectricity-electromagnetic coupling cantilever beam up-conversion and carry out collecting energy.
Description
Technical field
The invention belongs to vibrational energies to capture technical field, and in particular to a kind of up-conversion of piezoelectricity-electromagnetic coupling is multi-party
Captureing to vibration can device.
Background technique
With the extensive use of portable device in real life, the power consumption of portable device also becomes lower and lower.
This, which to provide energy using the energy in environment for portable device, becomes possible.At present there is utilizable energy in environment
Luminous energy, thermal energy, vibrational energy etc., wherein vibrational energy is widely present in our living environments, such as the movement of human body, the vibration of vehicle
Deng.Researcher has begun working on the vibrational energy in acquisition environment and is translated into the technology of electric energy thus, is portable
Formula equipment provides electric energy.
The ambient vibration energy acquisition mode of most study has electromagnetic type, piezoelectric type etc., piezoelectric type vibration energy accumulator at present
Output voltage is larger, but output electric current is smaller, and output impedance is in capacitive；The output voltage of electromagnetic vibration energy accumulator compared with
It is small, but output electric current is larger, output impedance is in perception.Moreover, the energy accumulator output power of single electromechanical transformation mechanism and
Transfer efficiency is lower, and working band and loading range are relatively narrow.So carrying out vibrational energy in the form of two ways coupling
Acquisition can improve collecting efficiency.Due to the linear oscillator energy accumulator of resonance type, only near its natural reonant frequency point
There is higher output power, cantilever beam size is smaller, and natural reonant frequency is higher.Vibration at present in mankind's application range is more
For low-frequency vibration, this low-frequency vibration is acquired, needs for low-frequency vibration to be transformed into the natural frequency vibration of cantilever beam.Therefore very
More researchers propose the various methods for adjusting piezoelectric cantilever resonant frequency.Such as patent: CN201711190595.1 proposes one
Kind collision raising frequency formula bistable state piezoelectric harvester, comprising: plectrum, piezoelectric beam, pendulum mound, shaft, magnet and circular housing pedestal, pendulum
The repulsive force of magnet makes pendulum mound potential energy there are two potential wells and a potential barrier on the inside of magnet and circular ring shape shell on stone roller.Pendulum mound can
According to the size of dynamic excitation, drives piezoelectric beam to collide with plectrum by shaft, produces electricl energy piezoelectric beam high-frequency vibration,
Improve output power.For another example patent: CN201721590921.3 discloses a kind of magnetic coupling piezoelectricity Electromagnetic heating energy accumulator, packet
It includes: translation magnet, suspension magnet gasket, stator, moving tooth, rotor magnet, piezoelectric cantilever, zanjon bearing, rotor, induction coil
With disturbance magnet, the translation magnet is collected by induction coil and is completed by its circumferential power drive rotor magnet high frequency rotational
Raising frequency, high-frequency vibration after rotor magnet drives piezoelectric cantilever and moving tooth to collide by zanjon bearing are realized secondary
Raising frequency.But it to stirring for piezoelectric cantilever is generated by colliding for contact in these vibrational energy acquisition devices, without
As contactless impact energy reduction energy loss, and without piezoelectricity-electromagnetism direct-coupling resonance high frequency band.
The invention discloses a kind of multi-direction vibration prisoner energy devices of the up-conversion of piezoelectricity-electromagnetic coupling, it is characterised in that Gu
Determine the composition linear coupling such as pedestal, piezoelectric patches, coil, permanent magnet, cantilever beam and permanent magnet on fan-shaped rotating mass block with it is non-
Linear coupling is coefficient composite structured, the structure effective working band with higher.But its natural reonant frequency
Higher, the actuating permanent magnet by being mounted on fan-shaped rotating mass block generates magnetic action when close to the permanent magnet of cantilever beam end
Power, the non-contacting impact forces, induces the natural frequency vibration of cantilever beam.The ambient vibration of low frequency is transformed into outstanding by realization
The up-conversion of arm beam working band changes, and the vibrational energy of cantilever beam is converted into power output by coil and piezoelectric patches, realizes
The acquisition of low frequency movement nonlinear scale spaces vibrational energy.
Summary of the invention
The purpose of the present invention: it proposes a kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling, passes through pressure
Electricity-electromagnetic coupling resonance mode improves effective working band of energy accumulator, and solving prisoner using up-conversion combined vibrating can fill
The problem of setting prisoner's energy low efficiency in the case where human body is swung at random.
To realize the present invention, the technical solution adopted is that: energy is captureed in a kind of multi-direction vibration of the up-conversion of piezoelectricity-electromagnetic coupling
Device, including fixed pedestal (1), bearing (2), fan-shaped rotating mass block (3) and at least one piezoelectricity-electromagnetic coupling cantilever beam
(4), it is characterised in that at least one piezoelectricity-electromagnetic coupling cantilever beam (4) is circumferentially mounted on the central axis of fixed pedestal (1)
On, piezoelectricity-electromagnetic coupling cantilever beam (4) includes cantilever beam (5), permanent magnet (6), coil (7), piezoelectric patches on beam
(8), piezoelectric patches (8) collecting energy is arranged in the surface of the cantilever beam (5), and permanent magnet (6) is placed on cantilever on the beam
The free end of beam (5), the coil (7), which is arranged on beam on the fixed pedestal (1) of the axial lower section of permanent magnet (6), acquires energy
Amount, the inner ring of the bearing (2) are fixed on the central axis of fixed pedestal (1), and a sector is arranged on the outer ring of bearing (2)
Rotating mass block (3), can be around the central axis whipping of fixed pedestal (1), and the fan-shaped rotating mass block (3) includes lightweight material
Expect bracket (9), weight mass block (10) and at least one actuating permanent magnet (11), actuating permanent magnet (11) distance is fixed
The shaft core position of pedestal (1) is corresponding with permanent magnet (6) on the beam of cantilever beam (5), which can turn extraneous low-frequency vibration
The up-conversion resonance for turning to piezoelectricity-electromagnetic coupling cantilever beam (4) carrys out collecting energy.Fan-shaped rotating mass block (3) can be with outer
Portion's low frequency movement whipping within the scope of 360 °, the actuating permanent magnet (11) on fan-shaped rotating mass block (3) is close to cantilever beam (5)
Magnetic force will be generated to it when permanent magnet (6) on the beam of free end, which can cause cantilever beam
(5) the decaying vibration under its intrinsic frequency, realizes the upper change that the ambient vibration of low frequency is transformed into cantilever beam (5) working band
The vibrational energy of frequency vibration, cantilever beam (5) is converted into power output by coil (7) and piezoelectric patches (8), realizes low frequency movement
The acquisition of nonlinear scale spaces vibrational energy.
Beneficial effects of the present invention:
1. the present invention is acted on using non-contacting magnetic coupling, low-frequency vibration is transformed into the high-frequency of the intrinsic frequency of cantilever beam
Vibration, realizes the up-conversion of working band.
2. can widen effectively prisoner's energy bandwidth due to by the way of piezoelectricity-electromagnetic coupling resonance, collect more vibrations
Energy improves output power.
3. use circumferentially distributed more cantilever beam structures, can increase sector mass block rotation when energy acquisition it is effective when
Between, improve output power.
Detailed description of the invention
Fig. 1 is a kind of four cantilever beam structures of the multi-direction vibration prisoner energy device of up-conversion of piezoelectricity-electromagnetic coupling of the present invention
Scheme of installation；
Fig. 2 is the cantilever beam structure figure of single piezoelectricity-electromagnetic coupling of the invention；
Fig. 3 is perspective view of the invention；
Fig. 4 is side view of the invention；
Fig. 5 is movement schematic diagram of the invention；
Wherein: 1: fixed pedestal；2: bearing；3: fan-shaped rotating mass block；4: piezoelectricity-electromagnetic coupling cantilever beam；5: cantilever beam；
6: permanent magnet on beam；7: coil；8: piezoelectric patches；9: light material bracket；10: weight mass block；11: actuating permanent magnet.
Specific embodiment
A kind of multi-direction vibration prisoner of the up-conversion of piezoelectricity-electromagnetic coupling can device, including fixed pedestal (1), bearing (2),
Fan-shaped rotating mass block (3) and at least one piezoelectricity-electromagnetic coupling cantilever beam (4), it is characterised in that at least one piezoelectricity-electricity
Magnetic-coupled cantilever beam (4) is circumferentially mounted on the central axis of fixed pedestal (1), piezoelectricity-electromagnetic coupling cantilever
Beam (4) includes cantilever beam (5), permanent magnet (6), coil (7), piezoelectric patches (8) on beam, the surface setting of the cantilever beam (5)
Piezoelectric patches (8) collecting energy, permanent magnet (6) is placed on the free end of cantilever beam (5) on the beam, and the coil (7) is set
Collecting energy on the fixed pedestal (1) of the axial direction lower section of the permanent magnet (6) on beam is set, the inner ring of the bearing (2) is fixed on
One fan-shaped rotating mass block (3) is set on the central axis of fixed pedestal (1), on the outer ring of bearing (2), it can be around fixed pedestal
(1) central axis whipping, the fan-shaped rotating mass block (3) include light material bracket (9), weight mass block (10) and extremely
A few actuating permanent magnet (11), shaft core position of the actuating permanent magnet (11) from fixed pedestal (1) and cantilever beam (5)
Permanent magnet (6) is corresponding on beam.
Working principle: the device can convert the upper of piezoelectricity-electromagnetic coupling cantilever beam (4) for extraneous low-frequency vibration
Frequency conversion resonance carrys out collecting energy.Fan-shaped rotating mass block (3) can turn with external low frequency movement whipping within the scope of 360 °, sector
Actuating permanent magnet (11) on kinoplaszm gauge block (3) will generate it at permanent magnet (6) on the beam close to cantilever beam (5) free end
Magnetic force, the nonlinear impact forces can cause decaying vibration of the cantilever beam (5) under its intrinsic frequency, realize
The ambient vibration of low frequency is transformed into the up-conversion vibration of cantilever beam (5) working band, the vibrational energy of cantilever beam (5) passes through line
Circle (7) and piezoelectric patches (8) are converted into power output, realize the acquisition of low frequency movement nonlinear scale spaces vibrational energy.Vibrational energy is received
The motion mode of acquisition means is as shown in Figure 5.
Preferably, the fan-shaped rotating mass block (3) is the light material bracket made of light material (9), in order to
The rotary inertia for increasing fan-shaped rotating mass block (3) is provided with weight mass block (10) in edge, and weight mass block (10) can
To be iron block or copper billet.
Preferably, one group can be installed on the fixed pedestal (1) central axis or multiple groups piezoelectricity-electromagnetic coupling is outstanding
Arm beam (4), cantilever beam (4) the certain angular interval installation of each piezoelectricity-electromagnetic coupling.
Preferably, the pole orientation of all actuating permanent magnets (11) on the fan-shaped rotating mass block (3) is consistent.
Preferably, permanent magnet (6) and actuating permanent magnet (11) can be ferrite lattice or rare earth permanent magnet on the beam
Body.
It should be noted that above-mentioned each technical characteristic continues to be combined with each other, the various embodiments not being enumerated above are formed,
It is accordingly to be regarded as the range of description of the invention record；Also, for those of ordinary skills, it can add according to the above description
To improve or convert, and all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (6)
1. a kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling, including fixed pedestal (1), bearing (2), fan
Shape rotating mass block (3) and at least one piezoelectricity-electromagnetic coupling cantilever beam (4), it is characterised in that at least one piezoelectricity-electromagnetism
The cantilever beam (4) of coupling is circumferentially mounted on the central axis of fixed pedestal (1), piezoelectricity-electromagnetic coupling cantilever beam
It (4) include cantilever beam (5), permanent magnet (6), coil (7), piezoelectric patches (8) on beam, pressure is arranged in the surface of the cantilever beam (5)
Electric piece (8) collecting energy, permanent magnet (6) is placed on the free end of cantilever beam (5), the coil (7) setting on the beam
The collecting energy on the fixed pedestal (1) of the axial lower section of permanent magnet (6) on beam, the inner ring of the bearing (2) is fixed on solid
One fan-shaped rotating mass block (3) is set on the central axis for determining pedestal (1), on the outer ring of bearing (2), it can be around fixed pedestal
(1) central axis whipping, the fan-shaped rotating mass block (3) include light material bracket (9), weight mass block (10) and extremely
A few actuating permanent magnet (11), shaft core position of the actuating permanent magnet (11) apart from fixed pedestal (1) and cantilever beam (5)
Beam on permanent magnet (6) it is corresponding, which can convert piezoelectricity-electromagnetic coupling cantilever beam (4) for extraneous low-frequency vibration
Up-conversion resonance come collecting energy.
2. a kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling according to claim 1, feature exist
The whipping within the scope of 360 ° can be moved with external low frequency in fan-shaped rotating mass block (3), the cause on fan-shaped rotating mass block (3)
Dynamic permanent magnet (11) will generate magnetic force to it at permanent magnet (6) on the beam close to cantilever beam (5) free end, this is non-thread
Property impact forces, can cause cantilever beam (5) under its intrinsic frequency decaying vibration, realize by the ambient vibration of low frequency turn
The up-conversion vibration of cantilever beam (5) working band is changed to, the vibrational energy of cantilever beam (5) passes through coil (7) and piezoelectric patches (8)
It is converted into power output, realizes the acquisition of low frequency movement nonlinear scale spaces vibrational energy.
3. a kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling according to claim 1, feature exist
It is the light material bracket made of light material (9) in the fan-shaped rotating mass block (3), rotates matter to increase sector
The rotary inertia of gauge block (3) is provided with weight mass block (10) in edge, and weight mass block (10) can be iron block or copper
Block.
4. a kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling according to claim 1, feature exist
In one group or multiple groups piezoelectricity-electromagnetic coupling cantilever beam (4) can be installed on described fixed pedestal (1) central axis, each
The installation of piezoelectricity-electromagnetic coupling cantilever beam (4) certain angular interval.
5. a kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling according to claim 1, feature exist
It is consistent in the pole orientation of all actuating permanent magnets (11) on fan-shaped rotating mass block (3).
6. a kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling according to claim 1, feature exist
It can be ferrite lattice or rare-earth permanent magnet in permanent magnet (6) on the beam and actuating permanent magnet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896352.2A CN110492788A (en) | 2019-09-23 | 2019-09-23 | A kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910896352.2A CN110492788A (en) | 2019-09-23 | 2019-09-23 | A kind of multi-direction vibration prisoner energy device of the up-conversion of piezoelectricity-electromagnetic coupling |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112491297A (en) * | 2020-11-23 | 2021-03-12 | 杭州电子科技大学 | Piezoelectric-electromagnetic coupling energy collection device and method based on wind-induced vibration |
| CN113037134A (en) * | 2021-03-08 | 2021-06-25 | 中国计量大学 | Wearable multi-source environment energy capturing device |
| CN113175410A (en) * | 2021-06-18 | 2021-07-27 | 山东理工大学 | Full-wind-direction wind column power generation device |
| CN116161213A (en) * | 2023-04-24 | 2023-05-26 | 中国航空工业集团公司沈阳空气动力研究所 | Wing flutter suppression device and method based on piezoelectric energy harvesting module |
-
2019
- 2019-09-23 CN CN201910896352.2A patent/CN110492788A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112491297A (en) * | 2020-11-23 | 2021-03-12 | 杭州电子科技大学 | Piezoelectric-electromagnetic coupling energy collection device and method based on wind-induced vibration |
| CN112491297B (en) * | 2020-11-23 | 2021-09-07 | 杭州电子科技大学 | Piezoelectric-electromagnetic coupling energy collection device and method based on wind-induced vibration |
| CN113037134A (en) * | 2021-03-08 | 2021-06-25 | 中国计量大学 | Wearable multi-source environment energy capturing device |
| CN113175410A (en) * | 2021-06-18 | 2021-07-27 | 山东理工大学 | Full-wind-direction wind column power generation device |
| CN116161213A (en) * | 2023-04-24 | 2023-05-26 | 中国航空工业集团公司沈阳空气动力研究所 | Wing flutter suppression device and method based on piezoelectric energy harvesting module |
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