CN107317515A - A kind of current cause the energy accumulator that shakes - Google Patents
A kind of current cause the energy accumulator that shakes Download PDFInfo
- Publication number
- CN107317515A CN107317515A CN201710727341.2A CN201710727341A CN107317515A CN 107317515 A CN107317515 A CN 107317515A CN 201710727341 A CN201710727341 A CN 201710727341A CN 107317515 A CN107317515 A CN 107317515A
- Authority
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- China
- Prior art keywords
- transducer
- cam
- rocking arm
- otic placode
- chassis base
- 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.)
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Links
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims abstract description 3
- 238000010248 power generation Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 13
- 238000007906 compression Methods 0.000 description 13
- 239000012530 fluid Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002463 transducing effect Effects 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 1
- 230000037007 arousal Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The energy accumulator that shakes is caused the present invention relates to a kind of current, belongs to technical field of power generation.Housing sidewall end is embedded with coil, bottom wall outer provided with upper lower ear plate equipped with end cap, inside bottom wall, has strong market potential and is fixed on lower ear plate；Turbulent is made up of cylinder, boss and side plate, side plate is enclosed on have strong market potential on, two stage clips being enclosed on having strong market potential are pressed in both sides above and below side plate；Magnetic stripe is housed, magnetic stripe is installed close to shell bottom wall on boss；Framework is provided with chassis base and inside and outside otic placode, and chassis base is on end cap；The rocking arm of driver is provided with rocking arm otic placode and cam, equipped with magnetic patch, and rocking arm is enclosed in rotating shaft, and rotating shaft two ends are fixed on outer otic placode；Bearing pin is equipped with interior otic placode and rocking arm otic placode, extension spring two ends are connected on bearing pin；Both sides are equipped with transducer above and below chassis base, and transducer is formed by substrate and piezoelectric film bonding, and transducer end is acted against on cam summit；Cam profile curve includes the two section arc profiles concentric with axis hole；Transducer is flat construction before installing.
Description
Technical field
The invention belongs to technical field of power generation, and in particular to a kind of current cause the energy accumulator that shakes, and are river monitoring system power supply.
Background technology
The river that China spreads all within the border reaches as many as thousands of.In recent years, because industrial waste sewage strength disposal is inadequate, water and soil
It is lost in and agricultural chemicals and the reason such as fertilizer application is improper, most of river all has a certain degree of pollution problem, nearly 1/4 river
Or section can not meet basic irrigation demand because of pollution.Further, since regional middle and small river flood control installations many at present are not
It is perfect, even without any flood control installation, flood season arrive when may cause to inrush or overflow the danger such as dike, directly threatened bank
The safety of life and property of the masses.Therefore, river monitoring is paid much attention to by national correlation department, 12 period water conservancies
Portion's just once plan realization pair《Middle and small river is administered and Small Reservoir reinforcement ad hoc planning》More than 5,000 bar rivers of middle determination
Monitoring all standing；Meanwhile, domestic experts and scholars also propose corresponding monitoring method and means in succession, including dirty for river
The water quality monitoring technology of dye, for controlling flood and causing the rainfall, water level and streamflow speed of the natural calamities such as mud-rock flow to supervise
The many-sides such as survey technology.Although some monitoring methods proposed at present are more ripe in technological layer, big face is not yet obtained
Long-pending popularization and application, its one of the main reasons is that monitoring system powerup issue is not well solved.
The content of the invention
The present invention proposes that a kind of current cause the energy accumulator that shakes, and the embodiment that the present invention is used is：The side wall ends warp of housing
Screw is provided with end cap, and the inside bottom wall of housing is inlaid with coil, bottom wall outer provided with upper lower ear plate, and two two ends having strong market potential are divided
It is not fixed on lower ear plate；Turbulent is by hollow cylinder, the boss being placed on cartridge outer surface and is placed in cylinder two ends
Side plate constitute, side plate is enclosed on have strong market potential on, each have strong market potential on be cased with two stage clips, stage clip is pressed in both sides above and below side plate；On boss
Magnetic stripe is installed through screw, magnetic stripe is installed close to the bottom wall of housing；Framework is outer provided with chassis base, two interior otic placodes and two
Otic placode, chassis base is arranged on end cap through screw；The rocking arm left end of driver is provided with provided with two rocking arm otic placodes, front and rear sides
Cam, right-hand member are provided with magnetic patch through screw, and the shaft hole sleeve of rocking arm is in rotating shaft, and the two ends of rotating shaft are separately fixed at two outer otic placodes
On；Bearing pin is fitted with interior otic placode and rocking arm otic placode, extension spring two ends are connected on two bearing pins；Two above and below chassis base
Side is all provided with transducer through screw and pressing plate, and transducer is the PZT (piezoelectric transducer) being bonded by substrate and piezoelectric film, substrate
Installed close to chassis base, transducer free end is acted against on cam；The contour curve of cam includes two sections concentric with axis hole
Arc profile, arc profile is most short away from axis hole centre distance on the contour curve of cam；Transducer is straight knot before installing
After structure, installation be warp architecture and transducer free end and the profile summit of cam contact with each other；Profile summit is located at axis hole
Left side, profile summit is that, apart from axis hole centre distance most long point on the contour curve of cam, transducer connects with profile summit
Deflection when touching is maximum, and the deformation of transducer free end all reduces when cam is rotated clockwise or counterclockwise around the shaft；Transducing
Transducer does not occur bending and deformation when device free end is in contact with arc profile, and the stress on piezoelectric film is equal and is zero.
When transducer free end and the profile summit of cam contact with each other, it is allowable that the maximum crushing stress on piezoelectric film is less than its
Compression, now the bending deformation quantity of transducer end be not more than allowable valueWherein：B=1- α+α β, A=α4(1-β)2-4
α3(1-β)+6α2(1- β) -4 α (1- β)+1,α=hm/ H, β=Em/Ep, hmFor substrate
Thickness, H is transducer gross thickness, EmAnd EpThe respectively Young's modulus of substrate and piezoelectricity membrane material, k31WithRespectively piezoelectricity
The electromechanical coupling factor and permissible compression stress of material, L are the length of transducer.
Under off working state, i.e., when fluid does not flow, turbulent is static, driver is in its own gravity, magnetic stripe and magnetic patch
Between be under magnetic force and extension spring resilient force above and below poised state, chassis base both sides transducer all with cam apexes contact,
The deformation of two transducers and stress distribution difference are identical；During work, that is, when thering is the fluid to flow through turbulent, turbulent by
The active force for the alternation up and down that fluid applies simultaneously drives magnetic stripe to be moved back and forth together along having strong market potential, and the coupling that magnetic stripe passes through with magnetic patch is made
Firmly make driver around axis of rotation；Driver is around the shaft along clockwise and when rotating counterclockwise, transducer end deflection
And the compression on piezoelectric film is all gradually reduced, when transducer is contacted with arc profile, the deflection of transducer is zero；On the contrary,
In driver reseting procedure, the compression on transducer end deflection and piezoelectric film all gradually increases, when transducer free end
Compression when being contacted with each other with the profile summit of cam on transducer deflection and piezoelectric film reaches maximum；On above-mentioned piezoelectric film
The alternating increase of compression by mechanical energy during reducing with being converted to electric energy, and this process is piezo-electric generating；Meanwhile, magnetic stripe
Along have strong market potential move back and forth, magnetic patch around the shaft reciprocally swinging when, coil cutting magnetic line simultaneously converts mechanical energy into electric energy, this process
For Electromagnetic generation.
In the present invention, transducer is from as a spring mass system, and extension spring constitutes a spring with driver and magnetic patch
Quality system, turbulent, magnet and stage clip one spring mass system of composition, therefore generally system with 3 degrees of freedom, effective band
It is wide；When in the present invention, fluid velocity is relatively low, turbulent frequency of reciprocating vibration is relatively low, piezo-electric generating ability is strong；Fluid velocity compared with
When high, turbulent frequency of reciprocating vibration is higher, Electromagnetic generation ability is strong；The combination of piezo-electric generating and Electromagnetic generation contributes to
Improve the generating capacity of energy accumulator, widen frequency band.
Advantage and characteristic：1. piezoelectricity and electromagnetism prisoner's energy unit are respectively adapted to low frequency and high frequency generating, and piezoelectric energy-capturing unit
For 3DOF system, therefore effective band is wide, flow velocity strong adaptability；2. PZT (piezoelectric transducer) deflection is by driver control and piezoelectricity
Film is subjected only to compression, and reliability is high；3. self-excited vibration is produced using fluid lift force suffered by turbulent, during simple in construction, low speed
Also there is preferable arousal effect.
Brief description of the drawings
Fig. 1 is the structural representation of energy accumulator in a preferred embodiment of the present invention；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is the structural representation of driver in a preferred embodiment of the present invention；
Fig. 4 is Fig. 3 top view；
Fig. 5 is the structural representation of a preferred embodiment of the present invention middle frame.
Embodiment
Housing a side wall al ends are provided with end cap b through screw, and housing a bottom wall a2 innermost inserts have coil c, bottom wall
Two ends provided with upper ear plate a3 and lower ear plate a4, two d that have strong market potential on the outside of a2 are separately fixed on upper ear plate a3 and lower ear plate a4；Disturb
Fluid e is by hollow cylinder e1, the boss e2 being placed on cylinder e1 outer surfaces and is placed in the side plate e3 at cylinder e1 two ends and constitutes, side
Plate e3, which is enclosed on, to be had strong market potential on d, and two stage clip f are cased with the d that each has strong market potential, and stage clip f is pressed in side plate e3 both sides up and down；On boss e2
Magnetic stripe g is installed through screw, magnetic stripe g is installed close to housing a bottom wall a2；Framework h is provided with chassis base h1, two interior otic placodes
H2 and two outer otic placode h3, chassis base h1 are arranged on end cap b through screw；Driver i rocking arm i1 left ends shake provided with two
Arm otic placode i2, front and rear sides are provided with magnetic patch p provided with cam i4, right-hand member through screw, and rocking arm i1 axis hole i5 is enclosed on rotating shaft j,
Rotating shaft j two ends are separately fixed on two outer otic placode h3；Bearing pin k, extension spring o are fitted with interior otic placode h2 and rocking arm otic placode i2
Two ends be connected on two bearing pin k；Chassis base h1 both sides up and down are all provided with transducer n through screw and pressing plate m,
Transducer n is the PZT (piezoelectric transducer) being bonded by substrate n1 and piezoelectric film n2, and substrate n1 is installed close to chassis base h1, transducing
Device n free end is acted against on cam i4；Cam i4 contour curve comprising two section arc profile i6s concentric with axis hole i5 and
I7, arc profile i6 and i7 are most short away from axis hole i5 centre distances on cam i4 contour curve；Transducer n is flat before installing
After straight structure, installation be warp architecture and transducer n free ends are mutually contacted with cam i4 profile summit T-phase；T, profile summit
In axis hole i5 left side, profile summit T is apart from axis hole i5 centre distances most long point, transducer on cam i4 contour curve
Deflection when n is contacted with profile summit T-phase is maximum, cam i4 when j is rotated clockwise or counterclockwise around the shaft transducer n it is free
The deformation at end all reduces；Transducer n does not occur bending and deformation when transducer n free ends are in contact with arc profile i6 and i7, pressure
Stress on electrolemma n2 is equal and is zero.
When transducer n free ends are mutually contacted with cam i4 profile summit T-phase, the maximum crushing stress on piezoelectric film n2 is less than
Its permissible compression stress, now the bending deformation quantity of transducer n ends be not more than allowable valueWherein：B=1- α+α β, A=α4(1-β)2-4
α3(1-β)+6α2(1- β) -4 α (1- β)+1,α=hm/ H, β=Em/Ep, hmFor substrate
N1 thickness, H is transducer n gross thickness, EmAnd EpRespectively substrate n1 and piezoelectric film n2 materials Young's modulus, k31With
The respectively electromechanical coupling factor and permissible compression stress of piezoelectric, L is transducer n length.
Under off working state, i.e., when fluid does not flow, turbulent e is static, driver i is in its own gravity, magnetic stripe g and magnetic
Be in poised state between block p in the presence of magnetic force and extension spring o elastic forces, above and below chassis base h1 both sides transducer n all with cam
Summit T is contacted, and two transducer n deformation and stress distribution difference are identical；During work, that is, there is fluid to flow through turbulent e
When, the active force for the alternation up and down that turbulent e is applied by fluid simultaneously drives magnetic stripe g to be moved back and forth together along the d that has strong market potential, magnetic stripe
G makes driver i be rotated around rotating shaft j through the coupling power with magnetic patch p；Driver i around the shaft j along it is clockwise and counterclockwise turn
When dynamic, the compression on transducer n Leading Edge Deformations amount and piezoelectric film n2 is all gradually reduced, as transducer n and arc profile i6 or
Transducer n deflection is zero when i7 is contacted；On the contrary, in driver i reseting procedures, transducer n Leading Edge Deformations amount and piezoelectric film
Compression on n2 all gradually increases, and when transducer n free ends are mutually contacted with cam i4 profile summit T-phase, transducer n becomes
Compression on shape amount and piezoelectric film n2 reaches maximum；The alternating increase of compression with being during reducing on above-mentioned piezoelectric film n2
Electric energy is converted mechanical energy into, this process is piezo-electric generating；Meanwhile, magnetic stripe g is moved back and forth along the d that has strong market potential, magnetic patch p j around the shaft
During reciprocally swinging, coil c cutting magnetic lines simultaneously convert mechanical energy into electric energy, and this process is Electromagnetic generation.
In the present invention, transducer n constitutes one from as a spring mass system, extension spring o and driver i and magnetic patch p
Spring mass system, turbulent e, magnetic stripe g and stage clip f constitute a spring mass system, thus generally system with 3 degrees of freedom, have
Imitate bandwidth：When in the present invention, fluid velocity is relatively low, turbulent e frequencies of reciprocating vibration are relatively low, piezo-electric generating ability is strong；Fluid
When speed is higher, turbulent e frequencies of reciprocating vibration are higher, Electromagnetic generation ability is strong；Organic knot of piezo-electric generating and Electromagnetic generation
Close and be favorably improved the generating capacity of energy accumulator, widen frequency band.
Claims (1)
1. a kind of current cause the energy accumulator that shakes, it is characterised in that：The side wall ends of housing are equipped with end cap, and the inside bottom wall of housing is inlayed
There are coil, bottom wall outer to be provided with upper lower ear plate, two two ends having strong market potential are separately fixed on lower ear plate；Turbulent is by hollow
Cylinder, boss and side plate are constituted, side plate is enclosed on have strong market potential on, each have strong market potential on be cased with two stage clips, stage clip is pressed in above and below side plate
Both sides；Magnetic stripe is housed, magnetic stripe is installed close to the bottom wall of housing on boss；Framework is provided with chassis base, two interior otic placodes and two
Individual outer otic placode, chassis base is on end cap；The rocking arm left end of driver is provided with two rocking arm otic placodes, front and rear sides provided with convex
Wheel, right-hand member are equipped with magnetic patch, and the shaft hole sleeve of rocking arm is in rotating shaft, and rotating shaft two ends are separately fixed on two outer otic placodes；Interior otic placode and
Bearing pin is fitted with rocking arm otic placode, extension spring two ends are connected on two bearing pins；Both sides are equipped with changing above and below chassis base
Energy device, transducer is formed by substrate and piezoelectric film bonding, and substrate is installed close to chassis base, and transducer free end acts against cam
On；The contour curve of cam includes the two section arc profiles concentric with axis hole, and arc profile is away from axle on the contour curve of cam
Hole centre distance is most short；Transducer install before be flat construction, install after be warp architecture and transducer free end and cam
Profile summit contact with each other；Profile summit is located at the left side of axis hole, and profile summit is apart from axis hole on the contour curve of cam
Centre distance most long point, deflection when transducer is in contact with profile summit is maximum, and cam is around the shaft clockwise or the inverse time
The deformation of transducer free end all reduces when pin is rotated；Transducer does not occur curved when transducer free end is in contact with arc profile
Stress on song deformation, piezoelectric film is equal and is zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727341.2A CN107317515B (en) | 2017-08-17 | 2017-08-17 | A kind of water flow cause vibration energy accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727341.2A CN107317515B (en) | 2017-08-17 | 2017-08-17 | A kind of water flow cause vibration energy accumulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107317515A true CN107317515A (en) | 2017-11-03 |
| CN107317515B CN107317515B (en) | 2019-03-26 |
Family
ID=60175964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710727341.2A Active CN107317515B (en) | 2017-08-17 | 2017-08-17 | A kind of water flow cause vibration energy accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107317515B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448861A (en) * | 2018-03-01 | 2018-08-24 | 张金辉 | Magnetic force hits electric power generator |
| CN110098765A (en) * | 2019-04-01 | 2019-08-06 | 沈阳工业大学 | A kind of water cycling cycling vibration power generator with rainwater collecting function |
| CN114050736A (en) * | 2021-11-26 | 2022-02-15 | 浙江师范大学 | Flow induced vibration-rotary type friction engine |
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| KR20130045140A (en) * | 2011-10-24 | 2013-05-03 | (주)시드에너텍 | Piezoelectric harvesting system by using by using water flow |
| CN105156260A (en) * | 2015-08-26 | 2015-12-16 | 哈尔滨工业大学 | Oscillating type hydrofoil end vibration excitation wave energy conversion device |
| CN105846720A (en) * | 2016-05-13 | 2016-08-10 | 哈尔滨工程大学 | Piezoelectric transducer and piezoelectric wave energy collecting device employing same |
| CN206164399U (en) * | 2016-11-04 | 2017-05-10 | 华中科技大学 | Power fluid coupling's non -linear vortex induced vibration energy gatherer |
| EP3196952A1 (en) * | 2016-01-21 | 2017-07-26 | AT & S Austria Technologie & Systemtechnik Aktiengesellschaft | Mems piezoelectric transducer formed at a pcb support structure |
-
2017
- 2017-08-17 CN CN201710727341.2A patent/CN107317515B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130045140A (en) * | 2011-10-24 | 2013-05-03 | (주)시드에너텍 | Piezoelectric harvesting system by using by using water flow |
| CN105156260A (en) * | 2015-08-26 | 2015-12-16 | 哈尔滨工业大学 | Oscillating type hydrofoil end vibration excitation wave energy conversion device |
| EP3196952A1 (en) * | 2016-01-21 | 2017-07-26 | AT & S Austria Technologie & Systemtechnik Aktiengesellschaft | Mems piezoelectric transducer formed at a pcb support structure |
| CN105846720A (en) * | 2016-05-13 | 2016-08-10 | 哈尔滨工程大学 | Piezoelectric transducer and piezoelectric wave energy collecting device employing same |
| CN206164399U (en) * | 2016-11-04 | 2017-05-10 | 华中科技大学 | Power fluid coupling's non -linear vortex induced vibration energy gatherer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448861A (en) * | 2018-03-01 | 2018-08-24 | 张金辉 | Magnetic force hits electric power generator |
| CN108448861B (en) * | 2018-03-01 | 2020-04-14 | 来安县昆仑制桶有限公司 | Magnetic force electricity-striking generating device |
| CN110098765A (en) * | 2019-04-01 | 2019-08-06 | 沈阳工业大学 | A kind of water cycling cycling vibration power generator with rainwater collecting function |
| CN114050736A (en) * | 2021-11-26 | 2022-02-15 | 浙江师范大学 | Flow induced vibration-rotary type friction engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107317515B (en) | 2019-03-26 |
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Inventor after: Zhang Zhonghua Inventor after: Liu Libo Inventor after: Chai Junling Inventor after: Wang Hongyun Inventor after: Guo Jianan Inventor after: Han Junwu Inventor before: Zhang Zhonghua Inventor before: Guo Jianan Inventor before: Han Junwu |
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