CN109687762A - A kind of array energy collector of bending double elastic coupling - Google Patents
A kind of array energy collector of bending double elastic coupling Download PDFInfo
- Publication number
- CN109687762A CN109687762A CN201910026142.8A CN201910026142A CN109687762A CN 109687762 A CN109687762 A CN 109687762A CN 201910026142 A CN201910026142 A CN 201910026142A CN 109687762 A CN109687762 A CN 109687762A
- Authority
- CN
- China
- Prior art keywords
- fixture
- energy collector
- supporting beams
- elastic supporting
- clamped beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 52
- 238000010168 coupling process Methods 0.000 title claims abstract description 52
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 52
- 238000005452 bending Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 239000002305 electric material Substances 0.000 claims description 3
- 230000001808 coupling effect Effects 0.000 abstract description 13
- 230000007246 mechanism Effects 0.000 abstract description 10
- 230000004888 barrier function Effects 0.000 abstract description 2
- 238000005381 potential energy Methods 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 description 9
- 230000004044 response Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000739 chaotic effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002463 transducing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Micromachines (AREA)
Abstract
The invention discloses a kind of array energy collectors of bending double elastic coupling, including the first support frame and the second support frame for installing energy collector and elastic supporting beams, the first energy collector for recovering energy and the second energy collector, the first elastic supporting beams and the second elastic supporting beams for generating Elastic Coupling and twisted coupling effect.Elastic Coupling and twisted coupling mechanism are integrated in a single system by elastic supporting beams, energy collector is enable to carry out coordinate synchronization for greater flexibility.Wherein, twisted coupling mechanism can make the fixed platform at energy collector both ends generate certain rotation, the potential energy barrier of two energy collectors can be by the rotational automatic adjustment of platform, then matching status to each other may be implemented to automatically adjust, and realizes the synchronization mechanism moved between a kind of stable relevant trap.The features such as structure of the invention is compact, simple accurate, energy density is high, bandwidth expansion is obvious, piezoelectricity functional material utilization rate is high.
Description
Technical field
The invention belongs to microsensor technical field, in particular to a kind of array for having special construction support construction
Non-linear piezoelectric energy recovery device.
Background technique
Vibration energy regeneration as in energy regenerating research category an important research forward position and hot spot, it is close to have energy
Spend relatively large, the characteristics of having a very wide distribution.Vibration energy recovery device is generally mainly by electromechanical transducing unit, mechanical vibrator knot
Three parts of structure and interface circuit form, and wherein it is whole can be regarded as a generator for electromechanical transducing unit and mechanical vibrator structure
Body.
The vibrating electricity generator of early stage generally uses linear resonant structure, and optimal performance is in driving frequency and resonance frequency
Acquisition when rate matches, when the resonant frequency of the frequency departure generator of vibrational excitation signal, the energy recycled can be sharply
Decline.And in actual environment, with the working environment of the application of vibration recyclable device and the change of state, vibrational excitation
It often changes correspondingly, linear generator can not adapt to the vibrational excitation changed at any time, and it is defeated also can not just to provide firm power
Out.In order to solve the limitation of linear resonance formula vibration energy recovery device in practical applications, wide-band vibration generator therewith by
It proposes.
The vibrating electricity generator in broadband needs while considering to require of both big bandwidth of operation and high power density, energy
Measuring recyclability may not be optimal, however possesses stronger adaptability, can provide in different excitation conditions relatively preferably and stable
Power Recovery output.Wide-band vibration generator mainly have the adjustable generator of resonance, raising frequency formula generator, multimode generator with
And the types such as non-linear generator.Bistable state generator in non-linear generator has simple accurate, the compact-sized, energy of model
The features such as metric density is high, bandwidth expansion is obvious, piezoelectricity functional material utilization rate is high.The bandwidth expansion of array multimode generator is imitated
Should be very significant, the power density of generator is but obviously reduced with the increase of volume.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of compact-sized, simple accurate, energy densities
High, the features such as bandwidth expansion is obvious, piezoelectricity functional material utilization rate is high, have optimized according to practical application it is preferable
The array energy collector of the bending double elastic coupling on basis.
The purpose of the present invention is achieved through the following technical solutions: a kind of array collection of bending double elastic coupling
Can device, including the first support frame and the second support frame, for recovering energy for installing energy collector and elastic supporting beams
One energy collector and the second energy collector, the first elastic supporting beams and the second elastic supporting beams for generating coupling and torsion effect；
First energy collector includes the first clamped beam, and the two sides of the first clamped beam are respectively equipped with the first inertial mass；
One end of first clamped beam is fixedly mounted on the top of the first fixture stand by fixture, and the other end is fixedly mounted on by fixture
The top of two fixture stands；
A layer of piezo-electric material is posted in the two sides of first clamped beam and the second clamped beam respectively；
Second energy collector includes the second clamped beam, and the two sides of the second clamped beam are respectively equipped with the second inertial mass；
One end of second clamped beam is fixedly mounted on the bottom end of the first fixture stand by fixture, and the other end is fixedly mounted on by fixture
The bottom end of two fixture stands；
First support frame includes two symmetrically arranged first supports, and the both ends of the first elastic supporting beams pass through respectively
Fixture is fixedly mounted in two first supports；The middle part of first fixture stand is fixedly mounted on the first elastic supporting beams by fixture
Middle part；Second support frame includes two symmetrically arranged second supports, and the both ends of the second elastic supporting beams pass through respectively
Fixture is fixedly mounted in two second supports；The middle part of second fixture stand is fixedly mounted on the second elastic supporting beams by fixture
Middle part；
First elastic supporting beams and the second elastic supporting beams are a pair of dismountable support constructions, this props up elasticity
Elastic Coupling and twisted coupling mechanism are integrated in a single system by support structure, this enable energy collector for greater flexibility into
Row coordinate synchronization.We can be rigid to change Elastic Coupling by adjusting the intrinsic parameter such as the length of two supporting beams, width, thickness
Spend KaWith twisted coupling stiffness Kt, can be needed to adjust K in this way according to researchaAnd Kt；
The first support, second support, the folder for fixing the first elastic supporting beams and the second elastic supporting beams both ends
Tool is connected with vibration source.
Further, the both ends of first fixture stand and the second fixture stand be respectively provided with matched with fixture it is recessed
Slot is respectively equipped with two threaded holes on groove, and threaded hole is wanted to cooperate with the threaded hole on fixture, by the first elastic supporting beams and
The both ends of two elastic supporting beams are clamped to the position between two threaded holes respectively.
Further, the midpoint of the first clamped beam is arranged in first inertial mass, and the second inertial mass is set
Set the midpoint in the second clamped beam.
Further, first clamped beam and the second clamped beam are parallel to each other；First elastic supporting beams and the second elasticity
Supporting beam is located at same level height, and the two is parallel to each other；First clamped beam and the second clamped beam and the first elastic supporting beams
It is mutually perpendicular to the second elastic supporting beams.
Further, first energy collector is identical as the intrinsic parameter of the second energy collector, and the intrinsic parameter includes base
The material of bottom beam, the shape of substrate beam, the material of piezoelectric patches and the shape of piezoelectric patches.The intrinsic frequency of first energy collector and second
The intrinsic frequency of energy collector is different, can be changed by exchanging elastic supporting beams or changing its initial buckling level of energy collector
Otherwise energy collector intrinsic frequency couples it should be noted that the intrinsic frequency of two energy collectors cannot differ too big or too small
Effect can not embody, and the range of intrinsic frequency should be maintained at 25Hz~65Hz.
Further, the bottom of first support frame and/or the second support frame is equipped with support base.
The beneficial effects of the present invention are: Elastic Coupling and twisted coupling mechanism are integrated in by the present invention by elastic supporting beams
In one single system, energy collector is enable to carry out coordinate synchronization for greater flexibility.Wherein, twisted coupling mechanism can make energy collector
The fixed platform at both ends generates certain rotation, the potential energy barriers of two energy collectors can by the rotational automatic adjustment of platform,
Then matching status to each other may be implemented to automatically adjust, and realize the synchronization mechanism moved between a kind of stable relevant trap.This
The features such as inventive structure is compact, simple accurate, energy density is high, bandwidth expansion is obvious, piezoelectricity functional material utilization rate is high, has
The preferable basis optimized according to practical application.
Detailed description of the invention
Fig. 1 is array piezoelectric energy recovery apparatus structure schematic diagram of the invention；
Fig. 2 is the structural schematic diagram left view of recyclable device of the present invention of the invention；
Fig. 3 is the usage state diagram of recyclable device of the present invention: (a) original state configures；(b) motion state configures
Fig. 4 is apparatus of the present invention equivalent model figure；
Y under Fig. 5 different situations1And y2Phase space plot；
Fig. 6 is power response of the generator under different coupling conditions: (a) power response of beam 1；(b) power of beam 2 is rung
It answers；(c) the sum of the power of two beams；
Description of symbols: the first fixture stand of 1-, 2- fixture, the first clamped beam of 3-, the first inertial mass of 4-, 5- second
Fixture stand, the second support frame of 6-, 6.1- second support, the second elastic supporting beams of 7-, the second clamped beam of 8-, the second inertia mass of 9-
Block, 10- first support, 10.1- first support, the first elastic supporting beams of 11-, 12- support base.
Specific embodiment
Technical solution of the present invention is further illustrated with reference to the accompanying drawing.
As depicted in figs. 1 and 2, the array energy collector of a kind of bending double elastic proposed by the invention coupling, including
For install energy collector and elastic supporting beams the first support frame and the second support frame, the first energy collector for recovering energy and
Second energy collector, the first elastic supporting beams and the second elastic supporting beams for generating Elastic Coupling and twisted coupling effect；
First energy collector includes the first clamped beam 3, and the two sides of the first clamped beam 3 are respectively equipped with the first inertial mass
4；One end of first clamped beam 3 is fixedly mounted on the top of the first fixture stand 1 by fixture 2, and the other end passes through the fixed peace of fixture 2
Mounted in the top of the second fixture stand 5；
Second energy collector includes the second clamped beam 8, and the two sides of the second clamped beam 8 are respectively equipped with the second inertial mass
9；One end of second clamped beam 8 is fixedly mounted on the bottom end of the first fixture stand 1 by fixture, and the other end is fixedly mounted by fixture
In the bottom end of the second fixture stand 5；
A layer of piezo-electric material is posted in the two sides of first clamped beam 3 and the second clamped beam 8 respectively；
First support frame 10 includes two symmetrically arranged first supports 10.1, the both ends of the first elastic supporting beams 11
It is fixedly mounted in two first supports 10.1 by fixture respectively；The middle part of first fixture stand 1 is fixedly mounted on by fixture
The middle part of first elastic supporting beams 11；
Second support frame 6 includes two symmetrically arranged second supports 6.1, the both ends point of the second elastic supporting beams 7
It is not fixedly mounted in two second supports 6.1 by fixture；The middle part of second fixture stand 5 is fixedly mounted on second by fixture
The middle part of elastic supporting beams 7；
The first support 10.1, second support 7.1, for fixing the first elastic supporting beams 11 and the second elastic supporting beams
The fixture at 7 both ends is connected with vibration source.
First elastic supporting beams 11 and the second elastic supporting beams 7 are a pair of dismountable support constructions, this is to elasticity
Elastic Coupling and twisted coupling mechanism are integrated in a single system by support construction, this enables energy collector for greater flexibility
Carry out coordinate synchronization.We can change Elastic Coupling by adjusting the intrinsic parameter such as the length of two supporting beams, width, thickness
Stiffness KaWith twisted coupling stiffness Kt, can be needed to adjust K in this way according to researchaAnd Kt；
Further, the both ends of first fixture stand and the second fixture stand be respectively provided with matched with fixture it is recessed
Slot is respectively equipped with two threaded holes on groove, and threaded hole is wanted to cooperate with the threaded hole on fixture, by 11 He of the first elastic supporting beams
The both ends of second elastic supporting beams 7 are clamped to the position between two threaded holes respectively.
Further, the midpoint of the first clamped beam 3, the second inertial mass 9 is arranged in first inertial mass 4
The midpoint of second clamped beam 8 is set.
Further, first clamped beam 3 and the second clamped beam 8 are parallel to each other；First elastic supporting beams 11 and second
Elastic supporting beams 7 are located at same level height, and the two is parallel to each other；First clamped beam 3 and the second clamped beam 8 and the first elasticity
Supporting beam 11 and the second elastic supporting beams 7 are mutually perpendicular to.
First energy collector is identical as the intrinsic parameter of the second energy collector, and the intrinsic parameter includes the material of substrate beam
Material, the shape of substrate beam, the shape of the material of piezoelectric patches and piezoelectric patches.The intrinsic frequency of first energy collector and the second energy collector
Intrinsic frequency is different, can be solid to change energy collector by exchanging elastic supporting beams or changing its initial buckling level of energy collector
There is frequency, it should be noted that the intrinsic frequency of two energy collectors cannot differ too big or too small, otherwise coupling effect can not
It embodies, the range of intrinsic frequency should be maintained at 25Hz~65Hz.
The bottom of first support frame 10 and/or the second support frame 6 is equipped with support base.First support frame 10 and second
Identical form can be set into support frame 6, and different forms also can be set into, is arranged to left and right two in the present embodiment
Side is asymmetric, and a support base 12 only is arranged in the bottom of first support frame 10 on the left side, can allow right side L shape square always
Remain stationary, left side L shape square can the rectangular block below following device move left and right, and then adjust between two fixing ends away from
From.
As shown in Figure 1, fixing support base 12 first, support base 12 is located at the lower section and two sides of full device；Its
It is secondary, the first elastic supporting beams 11 and the second elastic supporting beams 7 are clamped by fixture 2 respectively, and fastened with screw；Then again by
One clamped beam 3 and the second clamped beam 8 are clamped between fixture and the first fixture stand 1 and the second fixture stand 5 by fixture 2 respectively,
Then it is fastened by screw；The first inertial mass and the second inertial mass are finally separately fixed at the first elastic supporting beams
11 and second elastic supporting beams 7 midpoint.It should be noted that the shape and setting direction of support base 12 are not
Special limitation, can according to the actual situation and design requirement is designed accordingly, has support solid as long as meeting other components
It is set for using.Obviously, it is also not necessarily limited to the mode of screw connection between each fixture, between each fixture and support base 12, adopts
With other any modes that can be achieved to be fixedly connected.Furthermore in stationary fixture (in particular for fixing the first resilient support
The fixture of beam 11 and the second elastic supporting beams 7) when, it shall be guaranteed that each fixture and 12 keeping parallelism of support base hang down
Directly, installation bring error can be so reduced as far as possible.
The operation principle of the present invention is that: when original state (when being not introduced into excitation), make two clamped beams have it is certain just
Beginning buckling (such as Fig. 3, Fig. 4 are contemplated that), so that having between the first clamped beam 3 and the intrinsic frequency of the second clamped beam 8 certain
Spacing (such as the intrinsic frequency of the first clamped beam is 35Hz or so, and the second clamped beam is in 60Hz or so).When the first resilient support
(much larger than the axial rigidity of clamped beam) when the elastic stiffness and very big torsion stiffness of beam 11 and the second supporting beam 7, swash in the external world
It encourages under effect, two clamped beams only just have obvious sound when the frequency of dynamic excitation is near respective intrinsic frequency
It answers, only motivate at certain two just has certain electric energy recycling at this time under frequency range；If by the first elastic supporting beams in device
11 and second supporting beam 7 elastic stiffness and torsion stiffness when adjusting to smaller or even very little (less than clamped beam it is axial just
Degree or axial rigidity much smaller than clamped beam), when there is dynamic excitation effect, the second big supporting beam 7 of initial buckling is being moved
It is greater than lesser first clamped beam 3 of initial buckling to the fixture to the active force for the fixture for being used to clamp the first clamped beam in the process
Active force, this active force can make the first elastic supporting beams 11 and the second elastic supporting beams 7 being fixed on the fixture have
Certain flexible deformation and torsional deflection, both effects can allow inherently biggish second clamped beam, 8 frequency of frequency it is smaller,
And inherently the frequency of lesser first clamped beam 3 of frequency increases.If so parameter selection is appropriate, the first resilient support is allowed
The Elastic Coupling effect and twisted coupling effect of beam 11 and the second supporting beam 7 are suitable, extraneous driving frequency intrinsic frequency compared with
When near the first small clamped beam 3, the first clamped beam has stronger response, and the first clamped beam passes through the first supporting beam and second
Elastic Coupling and the twisted coupling effect of supporting beam drive the second clamped beam to have good response；When dynamic excitation frequency is far from
When the intrinsic frequency of one clamped beam, the intrinsic frequency of the second clamped beam 8 is just moved closer at this time, and the second clamped beam is because extraneous swash
The effect encouraged can generate stronger response, same the and two clamped beams pass through the first elastic supporting beams 11 and the second supporting beam 7
Elastic Coupling and twisted coupling effect drive the first clamped beam have good response.Pass through above a series of dynamic response
Process, so that the responsive bandwidth of the present apparatus can cover the intrinsic frequency of the second clamped beam from the intrinsic frequency of the first clamped beam substantially
Rate.It is noted that the first clamped beam 3 and the second clamped beam 8 can be interchanged, any one intrinsic frequency can be big
That.
As shown in Figure 3 and Figure 4, in equivalent model figure, clamped beam is replaced with spring, mass block and damper.Spring K1
And K2Respectively indicate the axial rigidity of beam, and Kr1And Kr2Respectively indicate the independent bending stiffness of beam.Inertia mass M1 (M2) is comprehensive
Close the effective mass for considering inertia mass and beam 1 (beam 2) distributed mass.Damper μ1And μ2The viscous of buckled beam is considered respectively
Effect.
Firstly, since the axial force of beam, elastic supporting beams are compressed into u0Initial deformation, to keep flexion, beam 1
Initial buckling level with beam 2 is respectively h1And h2.Meanwhile the difference of two beam axial forces causes the rotation of twisted coupling spring,
Its initial angle is θ0.In the case where applying external drive, the axial force of each beam will become with the displacement of inertia mass
(displacement of beam 1 is y for change1, the displacement of beam 2 is y2), so that moveable platform is as Fig. 3 (a) state change to the new shape as shown in Fig. 3 (b)
State.When rotational angle becomes θ, the incremental deformation of Δ u occurs for Elastic Coupling spring.
The advantages of structure composition proposed by the present invention bistable state oscillator and Level Multiple Degree of Freedom Structures.Meanwhile by common
Elastic support, by Elastic Coupling and twisted coupling effect include in the proposed system in.Coupling mechanism brings for generator
Additional benefit moves the trap for all realizing high-energy to two buckled beams, and there was only low buckling water in non-coupled situation
Flat beam just shows to move between trap.Particularly, the combination of Elastic Coupling and twisted coupling provides and makes in wide frequency ranges
Dynamic (dynamical) key mechanism between the trap of the locking phase of two beams.That Fig. 5 is indicated is the phase space plot of two Liang Sichengs, Fig. 5
(a)-(d) is obtained in the case where frequency range is 25Hz-27Hz, and Fig. 5 (e)-(h) is obtained when frequency is 26Hz
, wherein Fig. 5 (a), (e) indicate that no coupling condition, Fig. 5 (b) (f) indicate only Elastic Coupling situation, and Fig. 5 (c), (g) are indicated only
Twisted coupling situation；Fig. 5 (d), (h) indicate the case where dual coupling has.Phase space plot in Fig. 5 (a) shows that first is clamped
Beam 3 is in the state moved between trap, and the second clamped beam 8 then rests on an equilbrium position and nearby moves.Such as institute in Fig. 5 (b)
Show, when only Elastic Coupling, the first clamped beam 3 and the second clamped beam 8 all show to move between the trap of chaos.This is because the
The movement velocity of one clamped beam 3 and the second clamped beam 8 is unhappy, and hinders two by the influence that Elastic Coupling spring interacts
Root beam reaches on stable limit loop orbit.Therefore, chaotic movement is inevitable.As shown in Fig. 5 (c), only reverse
The case where coupling is entirely different.Movement in phase space forms the circulation track of round rectangle.When introduce Elastic Coupling and
When twisted coupling, Fig. 5 (d) is its corresponding phase space plot.The result shows that movement mainly follows two rails indicated by dotted line
Mark.Dotted line (1) indicate track it is related with the stage that beam 2 moves in trap, and dotted line (2) indicate track expression beam 2
Stage when moving between trap, chaotic lines correspond to beam 2 and move to the transient process moved between trap out of trap.In order to become apparent from solution
It releases, under the excitation of 26Hz single-frequency, the corresponding phase space figure of four kinds of situations is by such as Fig. 5 (e)-(h).As shown in fig. 6, in battle array
Three kinds of different degrees of coupling effects are introduced in column bistable state girder construction, Fig. 6 (a) indicates the function of beam 1 in all cases
Rate, Fig. 6 (b) indicate that the power of beam 2 in all cases, Fig. 6 (c) indicate the sum of the power of two beams in all cases,
Middle close coupling acts on corresponding coupling stiffness very little.When other conditions are all the same, by upper figure, we can be found that coupling effect
It introduces, especially under close coupling effect, the power and bandwidth of system, which have, to be more obviously improved.
A kind of array energy collector of bending double elastic coupling proposed by the invention, is two collection energy of array arrangement
Device makes two in array structure to have Bu Tong inherently by the Elastic Coupling effect of elastic support structure with twisted coupling effect
The energy collector of frequency can generate the dynamic response to intercouple, thus improve non-linear energy collector responsive bandwidth and energy it is close
Degree.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.This field
Those of ordinary skill disclosed the technical disclosures can make according to the present invention and various not depart from the other each of essence of the invention
The specific variations and combinations of kind, these variations and combinations are still within the scope of the present invention.
Claims (7)
1. a kind of array energy collector of bending double elastic coupling, which is characterized in that including for installing energy collector and elasticity
The first support frame and the second support frame of supporting beam, the first energy collector for recovering energy and the second energy collector, for generating
The first elastic supporting beams and the second elastic supporting beams of coupling and torsion effect；
First energy collector includes the first clamped beam (3), and the two sides of the first clamped beam (3) are respectively equipped with the first inertial mass
(4)；One end of first clamped beam (3) is fixedly mounted on the top of the first fixture stand (1) by fixture, and the other end is solid by fixture
Dingan County is mounted in the top of the second fixture stand (5)；
Second energy collector includes the second clamped beam (8), and the two sides of the second clamped beam (8) are respectively equipped with the second inertial mass
(9)；One end of second clamped beam (8) is fixedly mounted on the bottom end of the first fixture stand (1) by fixture, and the other end is solid by fixture
Dingan County is mounted in the bottom end of the second fixture stand (5)；
A layer of piezo-electric material is posted in the two sides of first clamped beam (3) and the second clamped beam (8) respectively；
First support frame (10) include two symmetrically arranged first supports (10.1), the two of the first elastic supporting beams (11)
End is fixedly mounted on two first supports (10.1) by fixture respectively；The middle part of first fixture stand (1) is fixed by fixture
It is mounted on the middle part of the first elastic supporting beams (11)；
Second support frame (6) includes two symmetrically arranged second supports (6.1), the both ends of the second elastic supporting beams (7)
It is fixedly mounted on two second supports (6.1) by fixture respectively；The middle part of second fixture stand (5) is fixedly mounted by fixture
At the middle part of the second elastic supporting beams (7)；
The first support (10.1), second support (7.1) are flexibly supported for fixing the first elastic supporting beams (11) and second
The fixture at beam (7) both ends is connected with vibration source.
2. a kind of array energy collector of bending double elastic coupling according to claim 1, which is characterized in that described the
The both ends of one fixture stand and the second fixture stand are respectively provided with the groove matched with fixture, and two spiral shells are respectively equipped on groove
Pit, threaded hole are wanted to cooperate with the threaded hole on fixture, by the two of the first elastic supporting beams (11) and the second elastic supporting beams (7)
End is clamped to the position between two threaded holes respectively.
3. a kind of array energy collector of bending double elastic coupling according to claim 1, which is characterized in that described the
The midpoint in the first clamped beam (3) is arranged in one inertial mass (4), and the second inertial mass (9) is arranged in the second clamped beam
(8) midpoint.
4. a kind of array energy collector of bending double elastic coupling according to claim 1, which is characterized in that described the
One clamped beam (3) and the second clamped beam (8) are parallel to each other；First elastic supporting beams (11) and the second elastic supporting beams (7) are located at
Same level height, and the two is parallel to each other；First clamped beam (3) and the second clamped beam (8) and the first elastic supporting beams (11)
It is mutually perpendicular to the second elastic supporting beams (7).
5. a kind of array energy collector of bending double elastic coupling according to claim 1, which is characterized in that described the
One energy collector is identical as the intrinsic parameter of the second energy collector；The intrinsic frequency of the intrinsic frequency of first energy collector and the second energy collector
The intrinsic frequency range of difference, two energy collectors is 25Hz~65Hz.
6. a kind of array energy collector of bending double elastic coupling according to claim 5, which is characterized in that described solid
Having parameter includes the shape of the material of substrate beam, the shape of substrate beam, the material of piezoelectric patches and piezoelectric patches.
7. a kind of array energy collector of bending double elastic coupling according to claim 1, which is characterized in that described the
The bottom of one support frame (10) and/or the second support frame (6) is equipped with support base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026142.8A CN109687762B (en) | 2019-01-11 | 2019-01-11 | Bending-twisting dual elastic coupling array energy collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026142.8A CN109687762B (en) | 2019-01-11 | 2019-01-11 | Bending-twisting dual elastic coupling array energy collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109687762A true CN109687762A (en) | 2019-04-26 |
| CN109687762B CN109687762B (en) | 2019-12-31 |
Family
ID=66193130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910026142.8A Active CN109687762B (en) | 2019-01-11 | 2019-01-11 | Bending-twisting dual elastic coupling array energy collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109687762B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829895A (en) * | 2019-12-12 | 2020-02-21 | 西南交通大学 | Buckling self-adjusting piezoelectric energy recovery device |
| CN110829895B (en) * | 2019-12-12 | 2024-05-28 | 西南交通大学 | Buckling self-adjusting piezoelectric energy recovery device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004056754A1 (en) * | 2004-11-24 | 2006-06-01 | Hoerbiger Automatisierungstechnik Holding Gmbh | Piezoelectric bending unit for actuators and sensors, has two material plies that are connected to each other, where contact surface of the plies are evenly curved and geometrically compactly wound |
| US20080174273A1 (en) * | 2006-09-26 | 2008-07-24 | Shashank Priya | Piezoelectric Energy Harvester |
| CN103493356A (en) * | 2011-05-09 | 2014-01-01 | 株式会社村田制作所 | Piezoelectric power generating apparatus |
| CN103560693A (en) * | 2013-10-11 | 2014-02-05 | 浙江工商大学 | Cantilever beam piezoelectric motor with function of collecting energy |
| CN109039156A (en) * | 2018-08-17 | 2018-12-18 | 湘潭大学 | A kind of piezoelectric harvester of twin beams Flexural-Torsional Coupling Vibration mode |
-
2019
- 2019-01-11 CN CN201910026142.8A patent/CN109687762B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004056754A1 (en) * | 2004-11-24 | 2006-06-01 | Hoerbiger Automatisierungstechnik Holding Gmbh | Piezoelectric bending unit for actuators and sensors, has two material plies that are connected to each other, where contact surface of the plies are evenly curved and geometrically compactly wound |
| US20080174273A1 (en) * | 2006-09-26 | 2008-07-24 | Shashank Priya | Piezoelectric Energy Harvester |
| CN103493356A (en) * | 2011-05-09 | 2014-01-01 | 株式会社村田制作所 | Piezoelectric power generating apparatus |
| CN103560693A (en) * | 2013-10-11 | 2014-02-05 | 浙江工商大学 | Cantilever beam piezoelectric motor with function of collecting energy |
| CN109039156A (en) * | 2018-08-17 | 2018-12-18 | 湘潭大学 | A kind of piezoelectric harvester of twin beams Flexural-Torsional Coupling Vibration mode |
Non-Patent Citations (2)
| Title |
|---|
| LI JIAO GONG 等: "Harvesting vibration energy using two modal vibrations of a folded piezoelectric device", 《APPLIED PHYSICS LETTERS》 * |
| 邓杰: "扭转及弯曲压电梁涡激振动俘能研究", 《中国优秀硕士学位论文全文数据库 2017年 工程科技Ⅱ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829895A (en) * | 2019-12-12 | 2020-02-21 | 西南交通大学 | Buckling self-adjusting piezoelectric energy recovery device |
| CN110829895B (en) * | 2019-12-12 | 2024-05-28 | 西南交通大学 | Buckling self-adjusting piezoelectric energy recovery device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109687762B (en) | 2019-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101075652B1 (en) | Near-resonance wide-range operating electromechanical motor | |
| JP4965973B2 (en) | Vibration type actuator | |
| CN106998156B (en) | A kind of differential type linear piezoelectric motor and its working method | |
| JP6627911B2 (en) | Piezoelectric rotating MEMS resonator | |
| CN105048863A (en) | Bending vibration mode-based linear ultrasonic motor and electric excitation method thereof | |
| CN106130399A (en) | A kind of mode of resonance inertia impact piezo-electric motor | |
| US5852336A (en) | Vibration actuator which effectively transmits micro-amplitude vibrations | |
| JP2007074829A (en) | Vibration actuator | |
| JP5207353B2 (en) | Vibration control method and vibration control apparatus | |
| WO2018134192A1 (en) | Miniature kinetic energy harvester for generating electrical energy from mechanical vibrations | |
| Wen et al. | Thin-disk piezoceramic ultrasonic motor. Part I: design and performance evaluation | |
| CN109687762A (en) | A kind of array energy collector of bending double elastic coupling | |
| CN112642684B (en) | Flexible vibration exciter | |
| JP2012531180A (en) | Micromechanical elements that amplify vibrational motion | |
| KR20200037318A (en) | Ultrasonic resonant motor | |
| Yan et al. | Piezoelectric ceramic for energy harvesting system: a review | |
| KR101682962B1 (en) | Vibration energy harvesting device having drum head structure | |
| JPS62259485A (en) | Piezoelectric driving apparatus | |
| CN110138272A (en) | A kind of non-linear three-dimensional part Whole frequency band piezoelectricity low amplitude vibration energy accumulator | |
| CN103560693A (en) | Cantilever beam piezoelectric motor with function of collecting energy | |
| JPH0421374A (en) | Oscillation wave motor and printer | |
| CN105048862A (en) | Inertial linear ultrasonic motor based on bending vibration of rectangular plate | |
| KR101761244B1 (en) | Energy Harvesting Device Based On Wake Galloping Utilizing Corrugated Flat Column | |
| JPH08242592A (en) | Ultrasonic actuator | |
| CN110299866A (en) | The accurate piezoelectric straight line mobile platform and operation mode of frame structure driving |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |