CN106230316B - Porous flow increasing type torsional mode generator for Internet of things node energy supply - Google Patents
Porous flow increasing type torsional mode generator for Internet of things node energy supply Download PDFInfo
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- 230000001965 increasing effect Effects 0.000 title claims abstract description 25
- 230000005611 electricity Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 230000000930 thermomechanical effect Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 31
- 230000000694 effects Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 230000003321 amplification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/185—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
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Abstract
The invention discloses a kind of porous flow increasing type torsional mode generator for Internet of things node energy supply, to solve to be currently used in conversion industrial environment the problems such as energy conversion efficiency is low existing for the piezoelectric generator of gas energy.The present invention is made up of porous array type flow-increasing device, dish-type generator assembly and holding screw three parts.Porous array type flow-increasing device and dish-type generator assembly are fastenedly connected by holding screw.The porous array type flow-increasing device can be amplified to the flow of high-pressure low-flow gas, acted on piezoelectric element and realized energy capture, be obviously improved the electric power generating efficiency of piezoelectric generator, electric power generating efficiency can be improved into more than 3 times.Rectification is carried out to caused electric energy by energy management circuit, can be energized with continuous and effective for low-power electronic devices such as Internet of things node, is with a wide range of applications in low power dissipation electron equipment, Internet of things node and low-power consumption sensor energy supply technical field.
Description
Technical field
The present invention relates to a kind of porous flow increasing type torsional mode generator for Internet of things node energy supply, belongs to low-power consumption electricity
Sub- equipment energizes technical field.
Background technology
Melt with the horizontal continuous improvement of manufacturing equipment technical intelligenceization, and along with the depth of itself and technology of Internet of things
Close, substantial amounts of Internet of things node is used widely in machine-building equipment field.Internet of things node is carried out stably, reliably
Continued power, it is the premise for ensureing Internet of things node normal work.The Internet of things node energy-provision way of Current mechanical manufacturing field
It is main directly to be powered and chemical cell power supply two ways including power supply.Wherein, there is electromagnetic interference in power supply direct feeding system
Seriously, the problems such as system wiring complexity, and chemical cell power supply mode is then present that battery is limited, need to regularly replace with
And the deficiencies of environmental pollution.Therefore, a kind of novel energy supply technology for Internet of things node energy supply need to be studied to solve to pass
Many drawbacks caused by energy supply technology of uniting.
The micro- energy conversion of direct piezoelectric effect capture environment using piezoelectric element is the environmental energy collection technique of electric energy, by
In with energy conversion efficiency height, cleanliness without any pollution, the advantage such as do not grown by electromagnetic interference and service life, turn into micro- energy and turn
Change the study hotspot with supply technology.The energy that compressed gas has is a large amount of existing form of energy in industrial production, and it has
The advantages such as standby safely cleaning is renewable.Therefore, the gas energy in industrial production environment is rationally utilized, with reference to piezoelectric element just
Gas energy is converted into electric energy and energized for wireless internet of things node by piezo-electric effect, can effectively solve what conventional power source power supply was brought
What wiring complexity and battery powered were brought needs to regularly replace, pollutes the problems such as environment, the intelligence to improving industrial manufacturing equipment technology
Energyization level has facilitation.The current gas energy being used to capture in industrial environment is the energy supply of wireless internet of things node
There is the problem of energy capture efficiency is low and power output is limited in generator, limit it and energize field in wireless internet of things node
Application.
The content of the invention
To solve the problems, such as that conventional piezoelectric generator energy transformation efficiency is low, the present invention discloses one kind and is used for Internet of things node
Energy supply porous flow increasing type torsional mode generator, for the low-power electronic devices such as Internet of things node provide a kind of sustainable work,
The high power supply device of energy conversion efficiency.
The technical solution adopted in the present invention is：
A kind of porous flow increasing type torsional mode generator for Internet of things node energy supply, is filled by porous array type flow increasing
Put, dish-type generator assembly and holding screw three parts composition, wherein porous array type flow-increasing device and dish-type generator assembly
It is fastenedly connected by holding screw.Described porous array type flow-increasing device is provided with air admission hole, annular high voltage holds air cavity, flow increasing
Device threaded connection hole, taper suction end, miniature jet hole and conical flow ejection end.The dish-type generator assembly is by generating electricity
Component mounting block, fan, piezo-electric generating component and steady pin composition.
Described air admission hole is located at annular high voltage and held on the periphery of air cavity, the flow-increasing device threaded connection hole with it is tight
Determine screw thread connection, the taper suction end is located at the inducing gas suction side of porous array type flow-increasing device, described miniature
Jet orifice is located at the compressed gas injection end face that annular high voltage holds air cavity, and porous array type flow increasing dress is close in the miniature jet hole
The exhaust end wall surface put, the conical flow ejection end are located at the exhaust end of porous array type flow-increasing device.
The electrification component mounting bracket is provided with generator inlet end, and generator inlet end is located at generator inlet end end
Portion, the electrification component mounting bracket are provided with mounting bracket screwed hole, and holding screw is threadedly coupled with mounting bracket screwed hole, the hair
Electrical component mounting bracket is provided with piezo-electric generating component mounting hole, and piezo-electric generating component is by piezo-electric generating component mounting hole with generating electricity
Component mounting block is fastenedly connected, and the electrification component mounting bracket is provided with steam vent, and steam vent circumferentially arrange by array；The wind
Fan is provided with fan external screw thread, and fan is threadedly coupled by fan external screw thread with piezo-electric generating component, and the fan is provided with solid
Rationed marketing mounting hole a, steady pin are connected with steady pin mounting hole a；The piezo-electric generating component is provided with elastic base plate, piezoelectricity
Element, piezoelectric element and elastic base plate bonding, the piezo-electric generating component are provided with steady pin mounting hole b, steady pin and fixation
Sell mounting hole b to be connected, the piezo-electric generating component is provided with piezo-electric generating component internal thread, and fan external screw thread is sent out with piezoelectricity
Electrical component internal thread is threadedly coupled；The elastic base plate is provided with straight beam a, L-type beam and straight beam b, the elastic base plate and is provided with
Fixed projection, fixed projection are fastenedly connected with piezo-electric generating component mounting hole, and the elastic base plate is provided with curved hinge I, arc
Shape hinge II and curved hinge III.
The beneficial effects of the invention are as follows：In the case where not influenceing industrial production, invented porous array type is utilized to increase
Flow device and Flow amplification is carried out to small flow high pressure gas, the gas after amplified flow is sprayed by conical flow ejection end, is swashed
Exit dish-type generator assembly is encouraged, internal piezo-electric generating component is produced Bending Deformation, electric energy is realized using direct piezoelectric effect
Conversion, to reach the energy conversion efficiency for using the effect for amplifying air-flow progress collection of energy conversion, improving piezoelectric generator.This
Invention has concurrently with the effect using the progress gas flow amplification of high-pressure low-flow gas and makes full use of the flow of amplification to carry out
The technical advantage that piezoelectric energy is collected, electric power generating efficiency improve more than 3 times, are supplied in low-power electronic devices such as Internet of things node
Energy technical field is with a wide range of applications.
Brief description of the drawings
Fig. 1 show the structure of the porous flow increasing type torsional mode generator proposed by the present invention for Internet of things node energy supply
Schematic diagram；
Fig. 2 show porous array type flow-increasing device structural representation proposed by the present invention；
Fig. 3 show taper suction end sectional view proposed by the present invention；
Fig. 4 show miniature jet pore structure sectional view proposed by the present invention；
Fig. 5 show conical flow ejection end sectional view proposed by the present invention；
Fig. 6 show dish-type generator assembly structural representation proposed by the present invention；
Fig. 7 show electrification component mounting bracket structural representation proposed by the present invention；
Fig. 8 show fan structure diagram proposed by the present invention；
Fig. 9 show piezo-electric generating component structure diagram proposed by the present invention；
Figure 10 show piezo-electric generating component left view proposed by the present invention；
Figure 11 show elastic base plate structural representation proposed by the present invention；
Figure 12 show energy management circuit schematic diagram proposed by the present invention.
Embodiment
Embodiment：Illustrate present embodiment with reference to Fig. 1 ~ Figure 12.Present embodiments provide for one kind to be used for Internet of Things
The specific embodiment of the porous flow increasing type torsional mode generator of net node energy supply.It is described it is a kind of for Internet of things node energy supply
Porous flow increasing type torsional mode generator is by porous array type flow-increasing device 1, dish-type generator assembly 2 and the three parts of holding screw 3
Composition, wherein porous array type flow-increasing device 1 and dish-type generator assembly component 2 are fastenedly connected by holding screw 3.
Described porous array type flow-increasing device 1 is provided with air admission hole 1-1, annular high voltage holds air cavity 1-2, described air inlet
Hole 1-1 is located at annular high voltage and held on air cavity 1-2 periphery, and compressed gas enters annular high voltage by air admission hole 1-1 and holds gas
Chamber 1-2；The porous array type flow-increasing device 1 is provided with flow-increasing device threaded connection hole 1-3, holding screw 3 and flow-increasing device
Threaded connection hole 1-3 is threadedly coupled；The porous array type flow-increasing device 1 is provided with taper suction end 1-4, the taper air-breathing
End 1-4 is located at the inducing gas suction side of porous array type flow-increasing device 1, and inducing gas is entered porous by taper suction end 1-4
Array flow-increasing device 1；The porous array type flow-increasing device 1 is provided with miniature jet hole 1-5, the miniature jet hole 1-5
The compressed gas for holding air cavity 1-2 positioned at annular high voltage sprays end face, and the miniature jet hole 1-5 is close to porous array type flow increasing dress
1 exhaust end wall surface is put, compressed gas sprays annular high voltage via miniature jet hole 1-5 and holds air cavity 1-2；The porous array type
Flow-increasing device 1 is provided with conical flow ejection end 1-6, and mixed gas sprays porous array type via conical flow ejection end 1-6
Flow-increasing device 1.
The dish-type generator assembly is the electric energy for the porous flow increasing type torsional mode generator of Internet of things node energy supply
Generation device.The dish-type generator assembly 2 is by electrification component mounting bracket 2-1, fan 2-2, piezo-electric generating component 2-3 and fixation
Sell 2-4 compositions.The electrification component mounting bracket 2-1 is provided with generator inlet end 2-1-1, and mixed gas is via generator air inlet
End 2-1-1 is acted on fan 2-2 into dish-type generator assembly 2, and fan 2-2 rotates band in the presence of mixed gas
Dynamic pressure electricity electrification component 2-3 produces torsion；The electrification component mounting bracket 2-1 is provided with mounting bracket screwed hole 2-1-2, clamp screw
Nail 3 is threadedly coupled with mounting bracket screwed hole 2-1-2；The electrification component mounting bracket 2-1 is provided with piezo-electric generating component mounting hole
2-1-3, piezo-electric generating component 2-3 are fastenedly connected by piezo-electric generating component mounting hole 2-1-3 and electrification component mounting bracket 2-1；
The electrification component mounting bracket 2-1 is provided with steam vent 2-1-4, and mixed gas is via steam vent 2-1-4 discharge tray generators
Component 2.The fan 2-2 is provided with fan external screw thread 2-2-1, fan 2-2 and passes through fan external screw thread 2-2-1 and piezo-electric generating group
Part 2-3 is threadedly coupled；The fan 2-2 is provided with steady pin mounting hole a 2-2-2, steady pin 2-4 and steady pin mounting hole a
2-2-2 is connected.The piezo-electric generating component 2-3 is provided with elastic base plate 2-3-1, piezoelectric element 2-3-2, piezoelectric element 2-
Piezoelectric ceramic piece PZT or flexible obdurability piezoelectric PVDF are can be selected in 3-2, and piezoelectric ceramic piece is used in present embodiment
PZT, piezoelectric element 2-3-2 and elastic base plate 2-3-1 are bonded, and present embodiment uses epoxy resin glue sticking, the pressure
Electric electrification component 2-3 is provided with steady pin mounting hole b 2-3-3, steady pin 2-4 and coordinates company with steady pin mounting hole b 2-3-3
Connect；The piezo-electric generating component 2-3 is provided with piezo-electric generating component internal thread 2-3-4, fan external screw thread 2-2-1 and piezo-electric generating
Component internal thread 2-3-4 is threadedly coupled.The elastic base plate 2-3-1 is provided with straight beam a 2-3-1-1, L-type beam 2-3-1-2 and straight
Beam b 2-3-1-3.The elastic base plate 2-3-1 is provided with fixed projection 2-3-1-4, fixed projection 2-3-1-4 and piezo-electric generating
Component mounting hole 2-1-3 is fastenedly connected, and the elastic base plate 2-3-1 is provided with the 2-3-1-5 of curved hinge I, the 2- of curved hinge II
The 3-1-6 and 2-3-1-7 of curved hinge III, the torsional rigidity of the 2-3-1 for reducing elastic base plate.
Described porous array type flow-increasing device 1, it is characterised in that air admission hole 1-1 diameter D3With taper suction end 1-4
Maximum dimension D1Between ratio be O=D3/D1, the scope that O value meets is 0.2 ~ 0.6, O in present embodiment
Value is 0.3；Air admission hole 1-1 diameters D3With conical flow ejection end 1-6 minimum diameter D2Between ratio be G=D3/D2, G
The scope that meets of value be 0.2 ~ 0.4, G value is 0.2 in present embodiment；Inhaled with taper at air admission hole 1-1 centers
Gas end 1-4 air line distance L1With air admission hole 1-1 centers and conical flow ejection end 1-6 air line distances L2Between ratio for F=
L1/L2, the scope that F value meets is 0.5 ~ 1, and F value is 0.6 in present embodiment；Porous array type flow-increasing device
The maximum gauge of taper suction end 1-4 in 1 is D1, perpendicular to D1The circular cone angle in direction is θ, and the scope that θ value meets is
0 ~ 60 °, θ value is 30 ° in present embodiment；Conical flow ejection end 1-6 minimum diameter is D2, perpendicular to D2Side
To taper angle be α, the scope that α value meets is 0 ~ 20 °, and α value is 15 ° in present embodiment；It is miniature to penetrate
Discharge orifice 1-5 diameter d and air admission hole 1-1 diameters D3Ratio be J=d/D3, the scope that J value meets is 0.05 ~ 0.1, this tool
J value is 0.08 in body embodiment.
The scope that there is the straight beam a 2-3-1-1 length value A, A value to meet is 20 ~ 30 mm, this specific embodiment party
A value is 20 mm in formula；The straight beam a 2-3-1-1 and L-type beam 2-3-1-2 relative drift angle is θ, θ value satisfaction
Scope is 5 ~ 20 °, and θ value is 10 ° in present embodiment.The straight beam b 2-3-1-3 have length value B, B and A
Ratio is K=B/A, and the scope that K value meets is 1 ~ 1.5, and K value is 1.25 in present embodiment.The arc hinge
The 2-3-1-5 of chain I has radius of corner value R1, R1The scope that meets of value be 1 ~ 3 mm, R in present embodiment1Value
For 3 mm；The 2-3-1-6 of curved hinge II has radius of corner value R2, R2With R1Ratio be M=R2/R1, M value satisfaction
Scope be 0.2 ~ 1, M value is 0.5 in present embodiment.The 2-3-1-7 of curved hinge III has radius of corner
Value R3, R3With R1Ratio be N=R3/R1, the scope that N value meets is 0.2 ~ 1, and N value is in present embodiment
0.5。
Described energy management circuit is by diode（D6~D9）With electric capacity C1Composition.When mixed gas is sprayed from conical flow
After holding 1-6 outflows, fan 2-2 is driven to rotate so that piezo-electric generating component 2-3 produces torsional deflection, in the work of direct piezoelectric effect
With the lower electric signal that can be produced positive and negative alternating cyclical and change, caused electric signal is wired to full bridge rectifier
Input.When producing positive electric signal, diode D6With diode D9Conducting forms closed-loop path, and electric energy can be stored in electricity
Hold C1In；When producing negative sense electric signal, diode D7With diode D8Conducting forms closed-loop path, and the electric signal after rectification
Flow direction and diode D6, diode D9Closed-loop path electric signal streams are to identical, therefore electric energy is still stored in electric capacity C1In.By whole
Electric energy after stream storage can be via C1Output end Internet of things node is flowed out to be powered.The diode（D6~D9）Can be
NI5408 commutation diodes, the electric capacity C1Capacitance swing be 100 ~ 1000 μ F.
Operation principle：The impact energy of gas can be converted into electric energy, this hair using the direct piezoelectric effect of piezoelectric element
The bright designed porous flow increasing type torsional mode generator for being used for Internet of things node energy supply can be in the effect of small flow high pressure gas
Lower induction outside air is oriented flowing, based on the influence of viscous effect power between gas, can enter the outside air after induction
Row speedup, the dish-type being connected with porous array type flow-increasing device is flowed out and encouraged from conical flow ejection end after gas speedup
Generator assembly component carries out electric transformation of energy.The technical advantages of the present invention are that porous array type flow-increasing device have it is multiple micro-
Type jet orifice, jet orifice can spray gases at high pressure at a terrific speed, and the gas quickly flowed can cause the part in device
Low pressure, because ambient pressure is more than device air pressure inside, has substantial amounts of air for balance pressure difference and be sucked into porous array type flow increasing
Device, flow increasing effect is reached with this.Torsional mode generator it is a technical advantage that it uses dish-type array architecture, can compared with
Small spatially arrangement piezoelectric element as much as possible, promote piezoelectric element to produce deformation by the torsion of each beam, more increase
Pressure energy in the capture gas of effect.Its hinge arrangement designed can reduce the torsional rigidity of generator, increase piezoelectric element
Deformation quantity its generated energy is reached maximum.
In summary the content, what the present invention designed is used for the porous flow increasing type torsional mode generating of Internet of things node energy supply
Machine, piezoelectric element can be acted on by the Flow amplification of the gas of percussion, and using the mixed gas impact after flow increasing speedup
On, electric transformation of energy is realized, improves electric energy conversion efficiency.The porous flow increasing type for being used for Internet of things node energy supply that the present invention designs
Torsional mode generator can convert electrical energy into efficiency and improve more than 3 times, have to the intelligent level for improving industrial manufacturing equipment technology
There is facilitation.
Claims (4)
1. a kind of porous flow increasing type torsional mode generator for Internet of things node energy supply, this is used for the more of Internet of things node energy supply
Flow increasing type torsional mode generator in hole is by porous array type flow-increasing device（1）, dish-type generator assembly（2）And holding screw（3）Three
Part forms, wherein porous array type flow-increasing device（1）With dish-type generator assembly（2）Pass through holding screw（3）It is fastenedly connected；
Described porous array type flow-increasing device（1）It is provided with air admission hole（1-1）, annular high voltage hold air cavity（1-2）, flow-increasing device screw thread
Connecting hole（1-3）, taper suction end（1-4）, miniature jet hole（1-5）With conical flow ejection end（1-6）；The dish-type generates electricity
Thermomechanical components（2）By electrification component mounting bracket（2-1）, fan（2-2）, piezo-electric generating component（2-3）And steady pin（2-4）Composition；
Described porous array type flow-increasing device（1）Middle air admission hole（1-1）Hold air cavity positioned at annular high voltage（1-2）Periphery on,
The flow-increasing device threaded connection hole（1-3）With holding screw（3）Threaded connection, the taper suction end（1-4）Positioned at porous
Array flow-increasing device（1）End, the miniature jet hole（1-5）Hold air cavity positioned at annular high voltage（1-2）Compressed gas
Spray end face, the miniature jet hole（1-5）It is close to porous array type flow-increasing device（1）Exhaust end wall surface, the taper gas
Flow ejection end（1-6）Positioned at porous array type flow-increasing device（1）Exhaust end；The dish-type generator assembly（2）Middle generating set
Part mounting bracket（2-1）It is provided with generator inlet end（2-1-1）, generator inlet end（2-1-1）Positioned at generator inlet end（2-
1-1）End, the electrification component mounting bracket（2-1）It is provided with mounting bracket screwed hole（2-1-2）, holding screw（3）With mounting bracket
Screwed hole（2-1-2）Threaded connection, the electrification component mounting bracket（2-1）It is provided with piezo-electric generating component mounting hole（2-1-3）,
Piezo-electric generating component（2-3）Pass through piezo-electric generating component mounting hole（2-1-3）With electrification component mounting bracket（2-1）It is fastenedly connected,
The electrification component mounting bracket（2-1）It is provided with steam vent（2-1-4）, steam vent（2-1-4）Circumferentially array is arranged；The wind
Fan（2-2）It is provided with fan external screw thread（2-2-1）, fan（2-2）Pass through fan external screw thread（2-2-1）With piezo-electric generating component
（2-3）Threaded connection, the fan（2-2）It is provided with steady pin mounting hole a（2-2-2）, steady pin（2-4）Installed with steady pin
Hole a（2-2-2）It is connected；The piezo-electric generating component（2-3）It is provided with elastic base plate（2-3-1）And piezoelectric element（2-3-
2）, piezoelectric element（2-3-2）And elastic base plate（2-3-1）Bonding, the piezo-electric generating component（2-3）It is provided with steady pin installation
Hole b（2-3-3）, steady pin（2-4）With steady pin mounting hole b（2-3-3）It is connected, the piezo-electric generating component（2-3）If
It is equipped with piezo-electric generating component internal thread（2-3-4）, fan external screw thread（2-2-1）With piezo-electric generating component internal thread（2-3-4）Spiral shell
Line connects；The elastic base plate（2-3-1）It is provided with straight beam a（2-3-1-1）, L-type beam（2-3-1-2）With straight beam b（2-3-1-
3）, the elastic base plate（2-3-1）It is provided with fixed projection（2-3-1-4）, fixed projection（2-3-1-4）With piezo-electric generating component
Mounting hole（2-1-3）It is fastenedly connected, the elastic base plate（2-3-1）It is provided with curved hinge I（2-3-1-5）, curved hinge II
（2-3-1-6）With curved hinge III（2-3-1-7）.
2. a kind of porous flow increasing type torsional mode generator for Internet of things node energy supply according to claim 1, it is special
Sign is the porous array type flow-increasing device（1）Middle air admission hole（1-1）A diameter of D3；The taper suction end（1-4）'s
Maximum gauge is D1, the taper suction end（1-4）Cone angle be θ, the scope that θ value meets is 0 ~ 60 °；D3With D1Ratio
It is worth for O=D3/D1；The conical flow ejection end（1-6）Minimum diameter D2, the conical flow ejection end（1-6）Cone angle
For α； D3With D2Ratio be G=D3/D2, the scope that G value meets is 0.2 ~ 0.4；The air admission hole（1-1）Center and cone
Shape suction end（1-4）The air line distance of end face is L1, the air admission hole（1-1）Center and conical flow ejection end（1-6）End face
Air line distance be L2, L1With L2Ratio be F=L1/L2, the scope that F value meets is 0.5 ~ 1；The miniature jet hole（1-
5）A diameter of d, d and D3Ratio be J=d/D3。
3. a kind of porous flow increasing type torsional mode generator for Internet of things node energy supply according to claim 1, it is special
Sign is the piezo-electric generating component（2-3）Middle straight beam a（2-3-1-1）With length value A, the scope that A value meets is 20
~ 30 mm, the straight beam a（2-3-1-1）With L-type beam（2-3-1-2）Relative drift angle be θ, the scope that θ value meets for 5 ~
20 °, the straight beam b（2-3-1-3）Ratio with length value B, B and A is K=B/A, the scope that K value meets for 1 ~
1.5, curved hinge I（2-3-1-5）With radius of corner value R1, R1The scope that meets of value be 1 ~ 3 mm, curved hinge II
（2-3-1-6）With radius of corner value R2, R2With R1Ratio be M=R2/R1, the scope that M value meets is 0.2 ~ 1, arc hinge
Chain III（2-3-1-7）With radius of corner value R3, R3With R1Ratio be N=R3/R1, the scope that N value meets is 0.2 ~ 1.
4. a kind of porous flow increasing type torsional mode generator for Internet of things node energy supply according to claim 1, it is special
Sign is described piezo-electric generating component（2-3）In piezoelectric element（2-3-2）It is tough that piezoelectric ceramic piece PZT or flexible can be selected
Property piezoelectric PVDF.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821651.6A CN106230316B (en) | 2016-09-14 | 2016-09-14 | Porous flow increasing type torsional mode generator for Internet of things node energy supply |
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| CN201610821651.6A CN106230316B (en) | 2016-09-14 | 2016-09-14 | Porous flow increasing type torsional mode generator for Internet of things node energy supply |
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| CN107565851B (en) * | 2017-10-31 | 2019-03-05 | 长春工业大学 | A kind of piezoelectric energy trapping device for the energy supply of pneumatic system sensor |
| CN107592032B (en) * | 2017-10-31 | 2019-09-10 | 长春工业大学 | A kind of piston type magnetic force raising frequency piezoelectric harvester for pressure piping |
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|---|---|---|---|---|
| US6703768B2 (en) * | 2000-09-27 | 2004-03-09 | Citizen Watch Co., Ltd. | Piezoelectric generator and mounting structure therefor |
| CN105201766A (en) * | 2015-09-02 | 2015-12-30 | 北京印刷学院 | Mass energy conversion device adopting gas energy storage and double-cylinder reciprocation vibrating piezoelectric transduction and applied to railway remote monitoring |
| CN205490237U (en) * | 2016-01-14 | 2016-08-17 | 长春工业大学 | Pneumatic piezoelectricity energy accumulator of two excitations of cymbals type structure |
| CN105932907B (en) * | 2016-06-15 | 2017-10-24 | 浙江师范大学 | A kind of wind turbine gearbox monitoring encourages piezoelectric harvester with eddy flow |
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