CN106329995B - Dial type piezoelectric harvester for the annular space jet excitation of Internet of things node energy supply - Google Patents
Dial type piezoelectric harvester for the annular space jet excitation of Internet of things node energy supply Download PDFInfo
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- CN106329995B CN106329995B CN201610821670.9A CN201610821670A CN106329995B CN 106329995 B CN106329995 B CN 106329995B CN 201610821670 A CN201610821670 A CN 201610821670A CN 106329995 B CN106329995 B CN 106329995B
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- 230000005284 excitation Effects 0.000 title claims abstract description 35
- 239000011148 porous material Substances 0.000 claims description 18
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- 238000009434 installation Methods 0.000 claims description 6
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 230000006698 induction Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 74
- 238000005516 engineering process Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency 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
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 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 dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply, with solve to be used in current industrial environment to capture gas pressure can micro- energy energy accumulator existing for the technical problem such as energy capture efficiency is low.The present invention includes micropore flow increasing component, dial type electrification component and holding screw.Flow increasing component in micropore is threadedly coupled with dial type electrification component by holding screw.The micropore flow increasing component can induce outside air to be oriented movement in the presence of high-pressure low-flow gas, and flow increasing is carried out to the gas after induction, the dial type electrification component being connected with micropore flow increasing component is discharged and acted on from jet-impingement end carries out energy capture.The piezoelectric harvester that the present invention designs can amplify gas flow, and then prisoner's energy efficiency of piezoelectric harvester is improved into more than 3 times.It is with a wide range of applications in the energy supply technical field of the low power dissipation electron equipment such as Internet of things node.
Description
Technical field
The present invention relates to a kind of dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply, belong to
Low power dissipation electron equipment energizes technical field.
Background technology
Melt with the horizontal continuous improvement of equipment manufacturing technical intelligenceization, and along with the depth of itself and technology of Internet of things
Close, substantial amounts of Internet of things node is widely applied in machine-building equipment field.Meanwhile this is also to the work of Internet of things node
Higher technical need is proposed as index, it is to ensure Internet of things node that reliable and stable continued power is carried out to Internet of things node
The premise of normal work.The Internet of things node energy-provision way of Current mechanical manufacturing field is mainly directly energized including power supply and chemistry
Battery-powered two ways.However, there is the problems such as electromagnetic interference is serious, system wiring is complicated in the direct energy-provision way of power supply；Change
Learn battery-powered mode and then have that battery is limited, need to regularly replace and the deficiencies of environmental pollution.Therefore, need to study
A kind of novel energy for Internet of things node energy supply captures technology to solve many drawbacks caused by traditional energy supply technology.
The micro- energy conversion of direct piezoelectric effect capture environment using piezoelectric element is the energy collection technology of electric energy, due to tool
Have 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 conversion with
The study hotspot of supply technology.The compression energy of gas is a large amount of existing form of energy in industrial production, and it is clear that it possesses safety
The clean advantage such as renewable.Therefore, the gas compression energy in industrial production environment is rationally utilized, with reference to the positive piezoelectricity of piezoelectric element
Gas compression energy is converted into electric energy and energized for wireless internet of things node by effect, can effectively solve what conventional power source energy supply was brought
What wiring complexity and battery-powered were brought needs to regularly replace, pollutes the problems such as environment.However, piezoelectric energy-capturing in current industrial environment
Gas pressure can not can be converted into electric energy by device mostly, or energy conversion efficiency is relatively low constrains such energy accumulator in Internet of Things
Net node energizes the application of technical field.The raising of the intelligent level of industrial manufacturing equipment technology is also limit simultaneously.
The content of the invention
To solve to be used to capture energy capture effect existing for micro- energy energy accumulator of gas pressure energy in current industrial environment
The low technical problem of rate, the present invention disclose a kind of dial type piezoelectric energy-capturing of the annular space jet excitation for Internet of things node energy supply
Device, a kind of piezoelectric energy trapping device with higher electrical generation efficiency is provided for Internet of things node energy supply.
The technical solution adopted in the present invention is：
A kind of dial type piezoelectric harvester of described annular space jet excitation for Internet of things node energy supply includes micropore
Gap flow increasing component, dial type electrification component and holding screw, micropore flow increasing component pass through holding screw and dial type generating set
Part is threadedly coupled；The micropore flow increasing component includes gas and flows into end, suction end sealing ring, fixes sleeve, jet end sealing
Circle, jet-impingement end, jet end screw and suction end screw；The gas flows into end and passes through suction end screw spiral shell with fixes sleeve
Line connects, and gas flows into end and passes through suction end sealing ring air seal with fixes sleeve；The fixes sleeve passes through jet end spiral shell
Nail is threadedly coupled with jet-impingement end, and fixes sleeve passes through jet end sealing ring and the air seal of jet-impingement end；It is described to stir
Formula electrification component includes piston mounting bracket, electrification component mounting bracket, piezo-electric generating component, trip bolt, piston and spring；It is described
Piston mounting bracket is threadedly coupled by trip bolt with electrification component mounting bracket；The electrification component mounting bracket and piezo-electric generating group
Part connects；The piston is connected with piston mounting bracket.
The gas flows into end and is provided with suction hole, and gas flows into end and is provided with gas inflow end screwed hole, and gas flows into
End screwed hole is connected with suction end screw thread；Gas flows into end and is provided with suction end o-ring groove；Gas flows into end and set
There is gas to flow into end intercommunicating pore.The fixes sleeve is provided with suction end bush whorl hole, suction end bush whorl hole and air-breathing
Hold screw thread connection；Fixes sleeve is provided with air admission hole；Fixes sleeve is provided with jet end bush whorl hole, jet end sleeve
Screwed hole is connected with jet end screw thread.The jet-impingement end be provided with jet end intercommunicating pore, jet end o-ring groove,
Jet end screwed hole and flow-increasing device screwed hole；Jet end screwed hole is connected with jet end screw thread；Flow-increasing device screwed hole
It is threadedly coupled with holding screw；Jet-impingement end is provided with taper puff prot.
The piston mounting bracket is provided with generator assembly screwed hole, steam vent, piston slide opening and generator assembly air inlet
Mouthful；Generator assembly screwed hole is threadedly coupled with holding screw.The electrification component mounting bracket be provided with electrification component mounting hole,
Routing hole and installation through-hole；The electrification component mounting hole is fixed with piezo-electric generating component；The installation through-hole and trip bolt
Threaded connection.The piezo-electric generating component is provided with elastic base plate, and elastic base plate is fixed with electrification component mounting hole；Piezo-electric generating
Component is provided with piezoelectric element, piezoelectric element and the gluing fixation of elastic base plate；The piston is provided with by aerofoil, traveller and dialled
Piece.
The embedded length that the gas is flowed between end and jet-impingement end is L, and L span is 10 ~ 20 mm；It is described
A diameter of D of suction hole0, a diameter of D of gas inflow end intercommunicating pore1, suction hole and gas flow into the diameter ratio of end intercommunicating pore for H=
D0/D1, H span is 1.1 ~ 1.5；The gas flows into end connection bore dia D1Ratio with embedded length L is G=L/D1, G
Span be 0.1 ~ 0.5；The cone angle of the taper puff prot is α, and α span is 0 ~ 25 °.
A diameter of D of the generator assembly air inlet4, D4Span be 40 ~ 50 mm；The diameter of the steam vent
For D5, the diameter ratio of steam vent and generator assembly air inlet is E=D4/D5, E span is 0.1 ~ 0.5；It is described by aerofoil
A diameter of d, D4Difference with d is N=D4- d, N span are 4 ~ 8 mm；The plectrum has angle of inclination beta, β value model
Enclose for 5 ~ 20 °；The height of plectrum is h, the h mm of span 10 ~ 15.
The piezoelectric element can select piezoelectric ceramic piece PZT or flexible obdurability piezoelectric elements PVDF.
The operation principle of the dial type piezoelectric harvester is can be by the compression of gas using the direct piezoelectric effect of piezoelectric element
Energy is converted into electric energy.The dial type piezoelectric harvester can induce outside air oriented flow in the presence of high-pressure low-flow gas
It is dynamic, and speedup is carried out to the outside air after induction, flow out and act on and micropore from jet-impingement end after gas speedup
The dial type electrification component that flow increasing component is connected realizes electric transformation of energy.Micropore flow increasing component it is a technical advantage that its have
There is the miniature hole of a loop, the gas flow rate ejected in the presence of gases at high pressure is caused because the diameter of hole is minimum
It hurry up.When quick air-flow causes energy accumulator internal pressure to be less than external air pressure, outside air can uniformly suck micropore
Gap flow increasing component, to reach the purpose of flow increasing.Dial type electrification component it is a technical advantage that it is sent out by arrayed multilayer piezoelectricity
The structure type of electrical component, the multi-layer piezoelectric electrification component of array are simultaneously operable, by gas impact possessed by energy carry out
Sufficiently capture, its plectrum structure designed can make the abundant deformation of piezoelectric element its generated energy to reach maximum.
The beneficial effects of the invention are as follows：In the case where not influenceing industrial working condition, invented micropore is utilized to increase
Stream component can induce outside air to be oriented movement in the presence of high-pressure low-flow gas, and the gas after induction is carried out
Speedup and flow increasing, the dial type electrification component being connected with micropore flow increasing component is discharged and acted on from exhaust end and carries out energy
Capture.The piezoelectric harvester that the present invention designs respectively can amplify gas flow and flow velocity, and then piezoelectric energy-capturing efficiency is improved into 3
More than times.It is with a wide range of applications in the technical field of the low power dissipation electron such as Internet of things node equipment energy supply.
Brief description of the drawings
Fig. 1 show the dial type piezoelectric energy-capturing of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The structural representation of device；
Fig. 2 show the dial type piezoelectric energy-capturing of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
Device micropore flow increasing component structure diagram；
Fig. 3 show the dial type piezoelectric energy-capturing of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
Device gas flows into end sectional view；
Fig. 4 show the dial type piezoelectric energy-capturing of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The fixes sleeve structure sectional view of device；
Fig. 5 show the dial type piezoelectric energy-capturing of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The gas of device flows into end and concatenates lateral partial structurtes sectional view with jet-impingement end；
Fig. 6 show the dial type piezoelectric energy-capturing of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The jet-impingement end structure sectional view of device；
Fig. 7 show the dial type piezoelectric energy-capturing of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The lateral partial structurtes sectional view of the taper puff prot of device；
Fig. 8 show the dial type piezoelectric energy-capturing of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The dial type electrification component structure sectional view of device；
Fig. 9 show the dial type piezoelectric energy-capturing of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The piston mounting bracket structure sectional view of device；
Figure 10 show the dial type piezoelectricity prisoner of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The electrification component mounting bracket structure sectional view of energy device；
Figure 11 show the dial type piezoelectricity prisoner of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The piezo-electric generating modular construction sectional view of energy device；
Figure 12 show the dial type piezoelectricity prisoner of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The piston structure sectional view of energy device；
Figure 13 show the dial type piezoelectricity prisoner of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The plectrum structure partial enlarged drawing of energy device；
Figure 14 show the dial type piezoelectricity prisoner of the annular space jet excitation proposed by the present invention for Internet of things node energy supply
The gas gauge circuit schematic diagram of energy device.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1 ~ Figure 14.Present embodiments provide for one kind to be used for thing
The specific embodiment of the dial type piezoelectric harvester of the annular space jet excitation of networked node energy supply.Described one kind is used for Internet of Things
The dial type piezoelectric harvester of the annular space jet excitation of node energy supply includes micropore flow increasing component 1, the and of dial type electrification component 2
Holding screw 3.Wherein, micropore flow increasing component 1 is threadedly coupled by holding screw 3 with dial type electrification component 2.
Described micropore flow increasing component 1 is the dial type piezoelectricity prisoner for the annular space jet excitation of Internet of things node energy supply
The flow amplification device of energy device.The micropore flow increasing component 1 includes gas and flows into end 1-1, suction end sealing ring 1-2, fixation
Sleeve 1-3, jet end sealing ring 1-4, jet-impingement end 1-5, jet end screw 1-6 and suction end screw 1-7.The gas stream
Enter to hold 1-1 to be threadedly coupled with fixes sleeve 1-3 by suction end screw 1-7；The gas flows into end 1-1 and fixes sleeve 1-3
Pass through suction end sealing ring 1-2 air seals；The gas flows into end 1-1 and is provided with suction hole 1-1-1, and inducing gas is by air-breathing
Hole 1-1-1 enters gas and flows into end 1-1；The gas flows into end 1-1 and is provided with gas inflow end screwed hole 1-1-2, the gas
Body flows into end screwed hole 1-1-2 and is threadedly coupled with suction end screw 1-7；The gas flows into end 1-1 and is provided with suction end sealing
Groove 1-1-3 is enclosed, suction end sealing ring 1-2 is arranged in suction end o-ring groove 1-1-3；The gas flows into end 1-1 and set
It is equipped with gas and flows into end intercommunicating pore 1-1-4, inducing gas flows into end intercommunicating pore 1-1-4 flow of exhaust via gas and enters to hold 1-1.
The fixes sleeve 1-3 is threadedly coupled by jet end screw 1-6 with jet-impingement end 1-5；The fixes sleeve 1-3 passes through spray
Gas end sealing ring 1-4 and the 1-5 air seals of jet-impingement end；The fixes sleeve 1-3 is provided with suction end bush whorl hole 1-
3-1, the suction end bush whorl hole 1-3-1 flow into end screwed hole 1-1-2 by gas and connected with suction end screw 1-7 screw threads
Connect；The fixes sleeve 1-3 is provided with air admission hole 1-3-2, and compressed gas enters fixes sleeve 1-3 by air admission hole 1-3-2；It is described
Fixes sleeve 1-3 is provided with jet end bush whorl hole 1-3-3, the jet end bush whorl hole 1-3-3 and jet end screw
1-6 is threadedly coupled.The jet-impingement end 1-5 is provided with jet end intercommunicating pore 1-5-1, and mixed gas is by jet end intercommunicating pore 1-
5-1 enters jet-impingement end 1-5；The jet-impingement end 1-5 is provided with jet end o-ring groove 1-5-2, jet end sealing
1-4 is enclosed to be arranged in jet end o-ring groove 1-5-2；The jet-impingement end 1-5 is provided with jet end screwed hole 1-5-3,
Jet end screwed hole 1-5-3 is threadedly coupled with jet end screw 1-6；The jet-impingement end 1-5 is provided with flow-increasing device screw thread
Hole 1-5-4, flow-increasing device screwed hole 1-5-4 are threadedly coupled with holding screw 3；The jet-impingement end 1-5 is provided with tapered injection
Gas port 1-5-5, mixed gas spray micropore flow increasing component 1 via taper puff prot 1-5-5.
The dial type electrification component 2 is the dial type piezoelectric energy-capturing for the annular space jet excitation of Internet of things node energy supply
The energy conversion device of device.The dial type electrification component 2 includes piston mounting bracket 2-1, electrification component mounting bracket 2-2, piezoelectricity
Electrification component 2-3, trip bolt 2-4, piston 2-5 and spring 2-6.The piston mounting bracket 2-1 passes through trip bolt 2-4 and hair
Electrical component mounting bracket 2-2 is threadedly coupled, and electrification component mounting bracket 2-2 is connected with piezo-electric generating component 2-3, piston 2-5 and piston
Mounting bracket 2-1 connections.The piston mounting bracket 2-1 is provided with generator assembly screwed hole 2-1-1, the dial type electrification component
2 insert generator assembly screwed hole 2-1-1 by holding screw 3 fixes；The piston mounting bracket 2-1 is provided with steam vent 2-1-
2, mixed gas is discharged via steam vent 2-1-2 from dial type electrification component 2；The piston mounting bracket 2-1 sets piston to slide
Hole 2-1-3, the piston 2-5 are slided in piston slide opening 2-1-3；The piston mounting bracket 2-1 is provided with generator assembly and entered
Gas port 2-1-4, mixed gas enter dial type electrification component 2 via generator assembly air inlet 2-1-4, act on piston 2-5
On, promote piston 2-5 movements.The electrification component mounting bracket 2-2 is provided with electrification component mounting hole 2-2-1, piezo-electric generating group
Part 2-3 is fixed on electrification component mounting bracket 2-2 by electrification component mounting hole 2-2-1；The electrification component mounting bracket
2-2 is provided with routing hole 2-2-2, and piezo-electric generating component 2-3 wire is drawn by routing hole 2-2-2；The electrification component peace
Shelve 2-2 and be provided with installation through-hole 2-2-3, trip bolt 2-4 is installed by installation through-hole 2-2-3, will by trip bolt 2-4
Piston mounting bracket 2-1 is threadedly coupled with electrification component mounting bracket 2-2.The piezo-electric generating component 2-3 is provided with elastic base plate 2-
3-1 and piezoelectric element 2-3-2；The elastic base plate 2-3-1 and piezoelectric element 2-3-2 are described by epoxide resin AB glue sticking
Elastic base plate 2-3-1 is fixed on electrification component mounting bracket 2-2 by electrification component mounting hole 2-2-1；The specific implementation
Piezoelectric element 2-3-2 can use the piezoelectric ceramic piece of grand several Xue Qi producers of Harbin company's core tomorrow and Baoding in mode
PZT, gas pressure can be converted into electric energy, and energy is utilized by gas gauge circuit；The embodiment
Middle piezoelectric element 2-3-2 can also use U.S.'s essence amount electronics（Shenzhen）The flexible obdurability piezoelectric element PVDF of Co., Ltd.Institute
State piston 2-5 and be provided with and entered dial type generating set via generator assembly air inlet 2-1-4 by aerofoil 2-5-1, mixed gas
After part 2, act on by aerofoil 2-5-1, promote piston 2-5 to move；The piston 2-5 is provided with traveller 2-5-2, the traveller
2-5-2 can be slided in piston slide opening 2-1-3；The piston 2-5 is provided with plectrum 2-5-3, and plectrum 2-5-3 stirs piezoelectricity hair
Electrical component 2-3, when piston 2-5 stress moves, plectrum 2-5-3 stirs piezo-electric generating component 2-3 and produces deformation, realizes gas pressure
Contracting can arrive the conversion of electric energy, realize the function of piezoelectric harvester capture and conversion；The piston 2-5 passes through spring 2-6 backhauls.
The embedded length that gas in the micropore flow increasing component 1 is flowed between end 1-1 and jet-impingement end 1-5 is L, L
The scope that value meets is 10 ~ 20 mm, and the value by adjusting L can change the fluidised form of mixed gas, in present embodiment
L value is 18 mm；A diameter of D of the suction hole 1-1-10, the gas inflow end a diameter of D of intercommunicating pore 1-1-41, inhale
Stomata 1-1-1 diameter flows into end intercommunicating pore 1-1-4 diameter ratios H=D with gas0/D1, scope that H values meet for 1.1 ~
1.5, the flow velocity of compressed gas can be changed by adjusting H values, H value is 1.2 in present embodiment；The air admission hole
1-3-2 a diameter of D, L and D ratio are F=L/D, and the scope that F values meet is 1 ~ 3, can change institute by the value for adjusting F
The flow velocity of the compressed gas of offer, F value is 2 in present embodiment；The gas flows into end intercommunicating pore 1-1-4 diameters
D1Ratio with embedded length L is G=L/D1, the scope that G values meet is 0.1 ~ 0.5, and compression can be provided by the value for adjusting G
The flow velocity of gas, G value is 0.3 in present embodiment；A diameter of D of the jet end intercommunicating pore 1-5-12, gas
Flow into end intercommunicating pore 1-1-4 diameters D1With jet end intercommunicating pore 1-5-1 diameter D2Ratio is Z=D1/D2, by the value for adjusting Z
The flow of compressed gas can be changed, the scope that Z values meet is 0.7 ~ 0.9, and Z value is 0.7 in present embodiment；
Angle value α, α that the cone angle of the taper puff prot 1-5-5 has value meet that scope is 0 ~ 25 °, can by the value for adjusting α
To adjust the flow velocity of the mixed gas of jet-impingement end 1-5 ejections, α value is 20 ° in present embodiment.
The distance between steam vent 2-1-2 and generator assembly air inlet 2-1-4 in the dial type electrification component 2 is S,
The scope that S values meet is 10 ~ 30 mm, can change the flow velocity of obtained compressed gas, this specific implementation by adjusting S values
S value is 18 mm in mode；A diameter of D of the generator assembly air inlet 2-1-44, D4The scope that value meets for 40 ~
50 mm, D in present embodiment4Value be 45 mm；A diameter of D of the steam vent 2-1-25, steam vent 2-1-2's
Ratio E=D of diameter and air inlet 2-1-4 diameter4/D5, E value meets that scope is 0.1 ~ 0.5, can be with by changing E values
Change and obtain the flow of compressed gas, E value is 0.2 in present embodiment；It is described by a diameter of of aerofoil 2-5-1
D, D4Difference with d is N=D4The scope that-d, N value meet is 4 ~ 8 mm, can be changed by aerofoil 2-5-1 institutes by adjusting N values
By the surge of compressed air, N value is 5 mm in present embodiment；The plectrum 2-5-3 is mutual
Distance is M, can change the generated energy of dial type electrification component 2 by adjusting M values, and the scope that M values meet is 8 ~ 12 mm,
M value is 10 mm in present embodiment；The plectrum 2-5-3 has an angle of inclination beta, the scope that β value meets for 5 ~
20 °, plectrum 2-5-3 rigidity can be changed by adjusting angle beta, β value is 15 ° in present embodiment；Described group
Piece 2-5-3 has the mm of scope 10 ~ 15 that height value h, h value meet, h value is 12 mm in present embodiment.
Described gas gauge circuit mainly includes diode（D6~D9）With electric capacity C1.When flow increasing gas is from jet-impingement end
After 1-5 outflows, excitation dial type electrification component 2, positive and negative alternating cyclical change can be produced in the presence of direct piezoelectric effect
Electric signal, caused electric signal is wired to the input of energy collection circuit.When producing positive electric signal, two
Pole pipe D6With diode D9Conducting forms closed-loop path, and electric energy can be stored in electric capacity C1In；When producing negative sense electric signal, two poles
Pipe D7With diode D8Conducting form closed-loop path, and the electric signal streams after rectification to diode D6, diode D9Closed-loop path
Electric signal streams are to identical, therefore electric energy is still stored in electric capacity C1In.Electric energy after over commutation stores can be via C1Flow out to output
End is powered to Internet of things node.The diode（D6~D9）Can be the commutation diodes of NI 5408, the electric capacity C1Electricity
Range of capacity is 100 ~ 1000 μ F.
In summary the content, the piezoelectric harvester that the present invention designs can amplify gas flow and flow velocity, and then will
Piezoelectric energy-capturing efficiency improves more than 3 times.Have in the energy supply technical field of the low power dissipation electron equipment such as Internet of things node extensive
Application prospect.Meanwhile the intelligent level to improving industrial manufacturing equipment technology has facilitation.
Claims (10)
1. the dial type piezoelectric harvester of a kind of annular space jet excitation for Internet of things node energy supply, it is characterised in that this is stirred
Formula piezoelectric harvester includes micropore flow increasing component（1）, dial type electrification component（2）And holding screw（3）, micropore flow increasing group
Part（1）Pass through holding screw（3）With dial type electrification component（2）Threaded connection；The micropore flow increasing component（1）Including gas
Flow into end（1-1）, suction end sealing ring（1-2）, fixes sleeve（1-3）, jet end sealing ring（1-4）, jet-impingement end（1-
5）, jet end screw（1-6）With suction end screw（1-7）；The gas flows into end（1-1）With fixes sleeve（1-3）Pass through suction
Gas end screw（1-7）Threaded connection, gas flow into end（1-1）With fixes sleeve（1-3）Pass through suction end sealing ring（1-2）Gas
Sealing；The fixes sleeve（1-3）Pass through jet end screw（1-6）With jet-impingement end（1-5）Threaded connection, fixes sleeve
（1-3）Pass through jet end sealing ring（1-4）With jet-impingement end（1-5）Air seal；The dial type electrification component（2）Including
Piston mounting bracket（2-1）, electrification component mounting bracket（2-2）, piezo-electric generating component（2-3）, trip bolt（2-4）, piston（2-5）
And spring（2-6）；The piston mounting bracket（2-1）Pass through trip bolt（2-4）With electrification component mounting bracket（2-2）Screw thread connects
Connect；The electrification component mounting bracket（2-2）With piezo-electric generating component（2-3）Connection；The piston（2-5）With piston mounting bracket
（2-1）Connection.
A kind of 2. dial type piezoelectric energy-capturing of annular space jet excitation for Internet of things node energy supply according to claim 1
Device, it is characterised in that the gas flows into end（1-1）It is provided with suction hole（1-1-1）, gas inflow end（1-1）It is provided with gas
Flow into end screwed hole（1-1-2）, gas inflow end screwed hole（1-1-2）With suction end screw（1-7）Threaded connection；Gas flows into
End（1-1）It is provided with suction end o-ring groove（1-1-3）；Gas flows into end（1-1）It is provided with gas and flows into end intercommunicating pore（1-
1-4）.
A kind of 3. dial type piezoelectric energy-capturing of annular space jet excitation for Internet of things node energy supply according to claim 1
Device, it is characterised in that the fixes sleeve（1-3）It is provided with suction end bush whorl hole（1-3-1）, suction end bush whorl hole
（1-3-1）With suction end screw（1-7）Threaded connection；Fixes sleeve（1-3）It is provided with air admission hole（1-3-2）；Fixes sleeve（1-
3）It is provided with jet end bush whorl hole（1-3-3）, jet end bush whorl hole（1-3-3）With jet end screw（1-6）Screw thread
Connection.
A kind of 4. dial type piezoelectric energy-capturing of annular space jet excitation for Internet of things node energy supply according to claim 1
Device, it is characterised in that the jet-impingement end（1-5）It is provided with jet end intercommunicating pore（1-5-1）, jet end o-ring groove（1-
5-2）, jet end screwed hole（1-5-3）With flow-increasing device screwed hole（1-5-4）；Jet end screwed hole（1-5-3）With jet end spiral shell
Nail（1-6）Threaded connection；Flow-increasing device screwed hole（1-5-4）With holding screw（3）Threaded connection；Jet-impingement end（1-5）If
It is equipped with taper puff prot（1-5-5）.
A kind of 5. dial type piezoelectric energy-capturing of annular space jet excitation for Internet of things node energy supply according to claim 1
Device, it is characterised in that piston mounting bracket（2-1）It is provided with generator assembly screwed hole（2-1-1）, steam vent（2-1-2）, piston
Slide opening（2-1-3）With generator assembly air inlet（2-1-4）；Generator assembly screwed hole（2-1-1）With holding screw（3）Screw thread
Connection.
A kind of 6. dial type piezoelectric energy-capturing of annular space jet excitation for Internet of things node energy supply according to claim 1
Device, it is characterised in that the electrification component mounting bracket（2-2）It is provided with electrification component mounting hole（2-2-1）, routing hole（2-2-2）
And installation through-hole（2-2-3）；The electrification component mounting hole（2-2-1）With piezo-electric generating component（2-3）It is fixed；The installation is logical
Hole（2-2-3）With trip bolt（2-4）Threaded connection.
A kind of 7. dial type piezoelectric energy-capturing of annular space jet excitation for Internet of things node energy supply according to claim 1
Device, it is characterised in that the piezo-electric generating component（2-3）It is provided with elastic base plate（2-3-1）, elastic base plate（2-3-1）With generating
Component mounting hole（2-2-1）It is fixed；Piezo-electric generating component（2-3）It is provided with piezoelectric element（2-3-2）, piezoelectric element（2-3-2）
With elastic base plate（2-3-1）Gluing fixation；The piston（2-5）It is provided with by aerofoil（2-5-1）, traveller（2-5-2）And plectrum
（2-5-3）.
A kind of 8. dial type piezoelectric energy-capturing of annular space jet excitation for Internet of things node energy supply according to claim 1
Device, it is characterised in that gas flows into end（1-1）With jet-impingement end（1-5）Between embedded length be L, L span for 10 ~
20 mm；Suction hole（1-1-1）A diameter of D0, gas inflow end intercommunicating pore（1-1-4）A diameter of D1, suction hole（1-1-1）With
Gas flows into end intercommunicating pore（1-1-4）Diameter ratio be H=D0/D1, H span is 1.1 ~ 1.5；The gas flows into end and connected
Through hole（1-1-4）Diameter D1Ratio with embedded length L is G=L/D1, G span is 0.1 ~ 0.5；Taper puff prot（1-5-
5）Cone angle be α, α span is 0 ~ 25 °.
A kind of 9. dial type piezoelectric energy-capturing of annular space jet excitation for Internet of things node energy supply according to claim 1
Device, it is characterised in that generator assembly air inlet（2-1-4）A diameter of D4, D4Span be 40 ~ 50 mm；Steam vent
（2-1-2）A diameter of D5, steam vent（2-1-2）With generator assembly air inlet（2-1-4）Diameter ratio be E=D4/D5, E's
Span is 0.1 ~ 0.5；By aerofoil（2-5-1）A diameter of d, D4Difference with d is N=D4- d, N span are 4 ~ 8
mm；Plectrum（2-5-3）With angle of inclination beta, β span is 5 ~ 20 °；Plectrum（2-5-3）Height be h, h span 10
~15 mm。
A kind of 10. dial type piezoelectricity prisoner of annular space jet excitation for Internet of things node energy supply according to claim 1
Energy device, it is characterised in that piezoelectric element（2-3-2）From piezoelectric ceramic piece PZT or flexible obdurability piezoelectric elements PVDF.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610821670.9A CN106329995B (en) | 2016-09-14 | 2016-09-14 | Dial type piezoelectric harvester for the annular space jet excitation of Internet of things node energy supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821670.9A CN106329995B (en) | 2016-09-14 | 2016-09-14 | Dial type piezoelectric harvester for the annular space jet excitation of Internet of things node energy supply |
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| CN107681922B (en) * | 2017-10-31 | 2019-06-07 | 长春工业大学 | A kind of rotary type piezoelectric harvester based on magnetic excitation |
Citations (4)
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|---|---|---|---|---|
| CN202634320U (en) * | 2012-06-14 | 2012-12-26 | 广州市番禺奥迪威电子有限公司 | Cantilever-beam type piezoelectric generator |
| WO2014188649A1 (en) * | 2013-05-23 | 2014-11-27 | パナソニックＩｐマネジメント株式会社 | Power generating apparatus |
| CN205356189U (en) * | 2016-01-14 | 2016-06-29 | 长春工业大学 | Pneumatic piezoelectricity energy accumulator of two excitations formula of stirring |
| CN105915110A (en) * | 2016-05-04 | 2016-08-31 | 中国石油大学(华东) | Downhole vibration energy collection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2014256963A1 (en) * | 2013-04-24 | 2015-10-08 | California Institute Of Technology | Flow energy piezoelectric bimorph noxxle harvester |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202634320U (en) * | 2012-06-14 | 2012-12-26 | 广州市番禺奥迪威电子有限公司 | Cantilever-beam type piezoelectric generator |
| WO2014188649A1 (en) * | 2013-05-23 | 2014-11-27 | パナソニックＩｐマネジメント株式会社 | Power generating apparatus |
| CN205356189U (en) * | 2016-01-14 | 2016-06-29 | 长春工业大学 | Pneumatic piezoelectricity energy accumulator of two excitations formula of stirring |
| CN105915110A (en) * | 2016-05-04 | 2016-08-31 | 中国石油大学(华东) | Downhole vibration energy collection device |
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