CN106329995A - Toggle type piezoelectric energy harvesting device of annulus jet excitation used for Internet of Things node energy supply - Google Patents
Toggle type piezoelectric energy harvesting device of annulus jet excitation used for Internet of Things node energy supply Download PDFInfo
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- CN106329995A CN106329995A CN201610821670.9A CN201610821670A CN106329995A CN 106329995 A CN106329995 A CN 106329995A CN 201610821670 A CN201610821670 A CN 201610821670A CN 106329995 A CN106329995 A CN 106329995A
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- 238000002347 injection Methods 0.000 claims description 7
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- 238000004519 manufacturing process Methods 0.000 description 3
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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 toggle type piezoelectric energy harvesting device of annulus jet excitation used for Internet of Things node energy supply. The toggle type piezoelectric energy harvesting device is used to solve technical problems of a conventional micro-energy harvesting device used for harvesting gas pressure energy of low energy harvesting efficiency in industrial production environment. The toggle type piezoelectric energy harvesting device comprises a micropore flow-increasing assembly, a toggle type power generating assembly, and a fastening screw. The micropore flow-increasing assembly is in a threaded connection with the toggle type power generating assembly by the fastening screw. The micropore flow-increasing assembly is used to induce external air to move in an oriented manner under action of high pressure small flow air, and is used to increase the flow of the induced air, and then the air is discharged through an air flow jet end to act on the toggle type power generating assembly connected with the micropore flow increasing assembly for the energy harvesting. The piezoelectric energy harvesting device provided by the invention is used to increase the air flow, and then the energy harvesting efficiency of the piezoelectric energy harvesting device is increased by more than three times. The toggle type piezoelectric energy harvesting device has a wide application prospect in a technology field of energy supply of Internet of Things nodes and other low power consumption electronic devices.
Description
Technical field
The present invention relates to the dial type piezoelectric harvester of a kind of annular space jet excitation for Internet of things node energy supply, belong to
Low power dissipation electron equipment energy supply technical field.
Background technology
Along with improving constantly of equipment manufacturing technical intelligence level, and melt with the degree of depth of technology of Internet of things along with it
Closing, substantial amounts of Internet of things node is widely applied in machine-building equipment field.Meanwhile, this also work to Internet of things node
Propose higher technical need as index, Internet of things node is carried out reliable and stable continued power and is to ensure that Internet of things node
The premise of normal work.Current mechanical manufactures the Internet of things node energy-provision way in field and mainly includes the direct energy supply of power supply and chemistry
Battery-powered two ways.But, 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 then to have that battery is limited, need to regularly replace and the deficiency such as environmental pollution.Therefore, research is needed
A kind of novel energy for Internet of things node energy supply captures technology to solve many drawbacks that tradition energy supply technology is brought.
Utilize the energy collection technology that the direct piezoelectric effect capture micro-energy conversion of environment of piezoelectric element is electric energy, due to tool
Have energy conversion efficiency height, cleanliness without any pollution, not by advantages such as electromagnetic interference and length in service life, become micro-energy conversion with
The study hotspot of supply technology.The compression energy of gas is a large amount of form of energy existed in commercial production, and it is clear that it possesses safety
The clean advantage such as renewable.Therefore, the gas compression energy in Appropriate application industrial production environment, in conjunction with the positive piezoelectricity of piezoelectric element
It is wireless Internet of things node energy supply that gas compression energy is converted into electric energy by effect, can effectively solve what conventional power source energy supply brought
What wiring complexity and battery-powered were brought needs periodic replacement, pollutes the problems such as environment.But, piezoelectric energy-capturing in current industrial environment
Gas pressure can not can be converted into electric energy by device mostly, or relatively low this type of energy accumulator that constrains of energy conversion efficiency is in Internet of Things
The application of net node energy supply technical field.Also limit the raising that industry manufactures the intelligent level of equipment technology simultaneously.
Summary of the invention
For solving in current industrial environment for capturing the energy capture effect that micro-energy energy accumulator of gas pressure energy exists
The technical problems such as rate is low, the present invention discloses the dial type piezoelectric energy-capturing of a kind of annular space jet excitation for Internet of things node energy supply
Device, for Internet of things node for being provided that a kind of piezoelectric energy trapping device with higher electrical generation efficiency.
The technical solution adopted in the present invention is:
Described a kind of dial type piezoelectric harvester for the annular space jet excitation of Internet of things node energy supply includes that micropore increases
Stream assembly, dial type electrification component and holding screw, the incremental assembly in micropore is by holding screw and dial type electrification component spiral shell
Stricture of vagina connects；The incremental assembly in described micropore includes that gas flows into end, suction end sealing ring, fixing sleeve, jet end sealing ring, gas
Stream ejection end, jet end screw and suction end screw；Described gas flows into end with fixing sleeve by suction end screw thread even
Connecing, gas flows into end with fixing sleeve by suction end sealing ring air seal；Described fixing sleeve by jet end screw with
Jet-impingement end is threaded, and fixing sleeve is by jet end sealing ring and jet-impingement end air seal；Described dial type is sent out
Electricity assembly includes piston installing rack, electrification component installing rack, piezo-electric generating assembly, trip bolt, piston and spring；Described piston
Installing rack is threadeded with electrification component installing rack by trip bolt；Described electrification component installing rack is with piezo-electric generating assembly even
Connect；Described piston is connected with piston installing rack.
Described 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 arranges
Gas is had to flow into end intercommunicating pore.Described fixing sleeve is provided with suction end bush whorl hole, suction end bush whorl hole and air-breathing
End screw thread connects；Fixing sleeve is provided with air inlet；Fixing sleeve is provided with jet end bush whorl hole, jet end sleeve
Screwed hole is connected with jet end screw thread.Described 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
Threaded with holding screw；Jet-impingement end is provided with tapered injection QI KOU.
Described piston installing rack is provided with generator assembly screwed hole, steam vent, piston slide opening and generator assembly air inlet
Mouthful；Generator assembly screwed hole is threadeded with holding screw.Described electrification component installing rack be provided with electrification component installing hole,
Routing hole and installation through hole；Described electrification component installing hole is fixed with piezo-electric generating assembly；Described installation through hole and trip bolt
Threaded.Described piezo-electric generating assembly is provided with elastic base plate, and elastic base plate is fixed with electrification component installing hole；Piezo-electric generating
Assembly is provided with piezoelectric element, and piezoelectric element is gluing with elastic base plate fixing；Described piston is provided with by aerofoil, traveller and dials
Sheet.
The span that embedded length is L, L that described gas flows between end and jet-impingement end is 10 ~ 20 mm；Described
A diameter of D of suction hole0, gas flows into a diameter of D of end intercommunicating pore1, suction hole and gas flow into the diameter of end intercommunicating pore ratio for H=
D0/D1, the span of H is 1.1 ~ 1.5；Described gas flows into end intercommunicating pore diameter D1It is G=L/D with the ratio of embedded length L1, G
Span be 0.1 ~ 0.5；The span that cone angle is α, α of described tapered injection QI KOU is 0 ~ 25 °.
A diameter of D of described generator assembly air inlet4, D4Span be 40 ~ 50 mm；The diameter of described steam vent
For D5, the diameter of steam vent and generator assembly air inlet is than for E=D4/D5, the span of E is 0.1 ~ 0.5；Described by aerofoil
A diameter of d, D4It is N=D with the difference of d4The span of-d, N is 4 ~ 8 mm；Described plectrum has angle of inclination beta, the value model of β
Enclose is 5 ~ 20 °；The height of plectrum is span 10 ~ 15 mm of h, h.
Described piezoelectric element can select piezoelectric ceramic piece PZT or flexible obdurability piezoelectric element PVDF.
The operation principle of this dial type piezoelectric harvester is to utilize the direct piezoelectric effect of piezoelectric element can be by the compression of gas
Energy is converted into electric energy.This dial type piezoelectric harvester can induce outside air oriented flow under the effect of high-pressure low-flow gas
Dynamic, and the outside air after induction is carried out speedup, flow out from jet-impingement end after gas speedup and act on and micropore
The dial type electrification component that incremental assembly is connected realizes electricity transformation of energy.The incremental assembly in micropore it is a technical advantage that its tool
There is a miniature hole of loop, due to the minimum gas flow rate making to eject under the effect of gases at high pressure of the diameter of hole
Hurry up.When quick air-flow causes energy accumulator internal pressure less than external air pressure, outside air can suck micropore uniformly
The incremental assembly of gap, to reach incremental purpose.Dial type electrification component it is a technical advantage that it is sent out by arrayed multilayer piezoelectricity
The version of electricity assembly, the multi-layer piezoelectric electrification component of array is simultaneously operable, and is carried out by the energy that gas impact is had
Sufficiently capture, abundant for piezoelectric element deformation can be made its generated energy reach maximum by the plectrum structure of its design.
The invention has the beneficial effects as follows: under not affecting industrial working condition, utilize the micropore invented to increase
Stream assembly can induce outside air to be oriented movement under the effect of high-pressure low-flow gas, and carries out the gas after induction
Speedup and incremental, discharges from exhaust end and acts on the dial type electrification component that assembly incremental with micropore be connected and carry out energy
Capture.Gas flow and flow velocity can be amplified by the piezoelectric harvester of present invention design respectively, and then piezoelectric energy-capturing efficiency is improved 3
More than Bei.Technical field in low power dissipation electron equipment energy supplies such as Internet of things nodes is with a wide range of applications.
Accompanying drawing explanation
Fig. 1 show the dial type piezoelectric energy-capturing of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
The structural representation of device；
The dial type piezoelectric harvester for the annular space jet excitation of Internet of things node energy supply that Fig. 2 show present invention proposition is micro-
Hole incremental modular construction schematic diagram；
Fig. 3 show the dial type piezoelectric harvester gas of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Body flows into end sectional view；
Fig. 4 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Fixed cover barrel structure sectional view；
Fig. 5 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Gas flows into end and concatenates partial structurtes sectional view with jet-impingement end；
Fig. 6 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Jet-impingement end structure sectional view；
Fig. 7 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
The partial structurtes sectional view of tapered injection QI KOU；
Fig. 8 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Dial type electrification component structure sectional view；
Fig. 9 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Piston installing rack structure sectional view；
Figure 10 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Electrification component installing rack structure sectional view；
Figure 11 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Piezo-electric generating modular construction sectional view；
Figure 12 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Piston structure sectional view；
Figure 13 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Plectrum structure partial enlarged drawing；
Figure 14 show the dial type piezoelectric harvester of the annular space jet excitation for Internet of things node energy supply that the present invention proposes
Gas gauge circuit schematic diagram.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1 ~ Figure 14 and present embodiment is described.Present embodiments provide for a kind of for thing
The specific embodiments of the dial type piezoelectric harvester of the annular space jet excitation of networked node energy supply.Described one is used for Internet of Things
The dial type piezoelectric harvester of the annular space jet excitation of node energy supply includes the incremental assembly in micropore 1, dial type electrification component 2 and
Holding screw 3.Wherein, the incremental assembly in micropore 1 is threadeded with dial type electrification component 2 by holding screw 3.
The incremental assembly in described micropore 1 is the dial type piezoelectricity prisoner of the annular space jet excitation for Internet of things node energy supply
The flow amplification device of energy device.The incremental assembly in described micropore 1 includes that gas flows 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 and suction end screw 1-7.Described gas stream
Enter to hold 1-1 to be threadeded by suction end screw 1-7 with fixing sleeve 1-3；Described gas flows into end 1-1 and fixing sleeve 1-3
By suction end sealing ring 1-2 air seal；Described 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；Described gas flows into end 1-1 and is provided with gas inflow end screwed hole 1-1-2, described gas
Body flows into end screwed hole 1-1-2 and threadeds with suction end screw 1-7；Described gas flows into end 1-1 and is provided with suction end sealing
Circle groove 1-1-3, suction end sealing ring 1-2 are arranged in suction end o-ring groove 1-1-3；Described gas flows into end 1-1 and sets
Being equipped with gas and flow 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.
Described fixing sleeve 1-3 is threadeded with jet-impingement end 1-5 by jet end screw 1-6；Described fixing sleeve 1-3 is by spray
Gas end sealing ring 1-4 and jet-impingement end 1-5 air seal；Described fixing sleeve 1-3 is provided with suction end bush whorl hole 1-
3-1, described suction end bush whorl hole 1-3-1 flow into end screwed hole 1-1-2 with suction end screw 1-7 screw thread even by gas
Connect；Described fixing sleeve 1-3 is provided with air inlet 1-3-2, and compressed gas is entered fixing sleeve 1-3 by air inlet 1-3-2；Described
Fixing sleeve 1-3 is provided with jet end bush whorl hole 1-3-3, described jet end bush whorl hole 1-3-3 and jet end screw
1-6 is threaded.Described 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；Described jet-impingement end 1-5 is provided with jet end o-ring groove 1-5-2, and jet end seals
Circle 1-4 is arranged in jet end o-ring groove 1-5-2；Described jet-impingement end 1-5 is provided with jet end screwed hole 1-5-3,
Jet end screwed hole 1-5-3 is threadeded with jet end screw 1-6；Described 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 threadeded with holding screw 3；Described jet-impingement end 1-5 is provided with tapered injection
QI KOU 1-5-5, mixed gas is via the incremental assembly in tapered injection QI KOU 1-5-5 ejection micropore 1.
Described dial type electrification component 2 is the dial type piezoelectric energy-capturing of the annular space jet excitation for Internet of things node energy supply
The energy conversion device of device.Described dial type electrification component 2 includes piston installing rack 2-1, electrification component installing rack 2-2, piezoelectricity
Electrification component 2-3, trip bolt 2-4, piston 2-5 and spring 2-6.Described piston installing rack 2-1 is by trip bolt 2-4 and sends out
Component mounting block 2-2 is threaded for electricity, and electrification component installing rack 2-2 is connected with piezo-electric generating assembly 2-3, piston 2-5 and piston
Installing rack 2-1 connects.Described piston installing rack 2-1 is provided with generator assembly screwed hole 2-1-1, described dial type electrification component
2 insert generator assembly screwed hole 2-1-1 by holding screw 3 fixes；Described piston installing rack 2-1 is provided with steam vent 2-1-
2, mixed gas is discharged from dial type electrification component 2 via steam vent 2-1-2；It is sliding that described piston installing rack 2-1 arranges piston
Hole 2-1-3, described piston 2-5 slide in piston slide opening 2-1-3；Described piston installing rack 2-1 is provided with generator assembly and enters
QI KOU 2-1-4, mixed gas enters dial type electrification component 2 via generator assembly air inlet 2-1-4, acts on piston 2-5
On, promote piston 2-5 to move.Described electrification component installing rack 2-2 is provided with electrification component installing hole 2-2-1, piezo-electric generating group
Part 2-3 is fixed on electrification component installing rack 2-2 by electrification component installing hole 2-2-1；Described electrification component installing rack
2-2 is provided with routing hole 2-2-2, and the wire of piezo-electric generating assembly 2-3 is drawn by routing hole 2-2-2；Described electrification component is pacified
Shelve 2-2 and be provided with installation through hole 2-2-3, by installing through hole 2-2-3, trip bolt 2-4 is installed, will by trip bolt 2-4
Piston installing rack 2-1 is threadeded with electrification component installing rack 2-2.Described piezo-electric generating assembly 2-3 is provided with elastic base plate 2-
3-1 and piezoelectric element 2-3-2；Described elastic base plate 2-3-1 and piezoelectric element 2-3-2 connects by epoxide resin AB is gluing, described
Elastic base plate 2-3-1 is fixed on electrification component installing rack 2-2 by electrification component installing hole 2-2-1；This is embodied as
In mode, 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
PZT, can be converted into electric energy by gas pressure, and be utilized energy by gas gauge circuit；This detailed description of the invention
Middle piezoelectric element 2-3-2 may be used without the flexible obdurability piezoelectric element PVDF of essence amount electronics (Shenzhen) company limited of the U.S..Institute
Stating piston 2-5 and be provided with by aerofoil 2-5-1, mixed gas enters dial type generating set via generator assembly air inlet 2-1-4
After part 2, act on by aerofoil 2-5-1, promote piston 2-5 motion；Described piston 2-5 is provided with traveller 2-5-2, described traveller
2-5-2 can slide in piston slide opening 2-1-3；Described piston 2-5 is provided with plectrum 2-5-3, plectrum 2-5-3 and stirs piezoelectricity and send out
Electricity assembly 2-3, when piston 2-5 stress moves, plectrum 2-5-3 stirs piezo-electric generating assembly 2-3 and produces deformation, it is achieved gas pressure
Contracting can arrive the conversion of electric energy, it is achieved piezoelectric harvester capture and the function converted；Described piston 2-5 passes through spring 2-6 backhaul.
The embedded length that gas in the incremental assembly in described micropore 1 flows between end 1-1 and jet-impingement end 1-5 is L, L
Value meets in the range of 10 ~ 20 mm, can be changed the fluidised form of mixed gas by the value of regulation L, in this detailed description of the invention
The value of L is 18 mm；A diameter of D of described suction hole 1-1-10, described gas flows into the end a diameter of D of intercommunicating pore 1-1-41, inhale
The diameter of pore 1-1-1 flows into end intercommunicating pore 1-1-4 diameter ratio H=D with gas0/D1, H value meets in the range of 1.1 ~
1.5, the flow velocity of compressed gas can be changed by regulation H-number, in this detailed description of the invention, the value of H is 1.2；Described air inlet
The ratio of a diameter of D, L and the D of 1-3-2 is that F=L/D, F value meets in the range of 1 ~ 3, can change institute by the value of regulation F
The flow velocity of the compressed gas provided, in this detailed description of the invention, the value of F is 2；Described gas flows into end intercommunicating pore 1-1-4 diameter
D1It is G=L/D with the ratio of embedded length L1, G value meets in the range of 0.1 ~ 0.5, can provide compression by the value of regulation G
The flow velocity of gas, in this detailed description of the invention, the value of G is 0.3；A diameter of D of described jet end intercommunicating pore 1-5-12, gas
Flow into end intercommunicating pore 1-1-4 diameter D1Diameter D with jet end intercommunicating pore 1-5-12Ratio is Z=D1/D2, by regulating the value of Z
Can change the flow of compressed gas, Z value meets in the range of 0.7 ~ 0.9, and in this detailed description of the invention, the value of Z is 0.7；
It is 0 ~ 25 ° that the value of angle value α, α that the cone angle of described tapered injection QI KOU 1-5-5 has meets scope, and the value by regulation α can
With the flow velocity of the mixed gas of regulation jet-impingement end 1-5 ejection, in this detailed description of the invention, the value of α is 20 °.
Steam vent 2-1-2 in described dial type electrification component 2 and the distance between generator assembly air inlet 2-1-4 are S,
S value meets in the range of 10 ~ 30 mm, can be changed the flow velocity of obtained compressed gas by regulation S value, originally be embodied as
In mode, the value of S is 18 mm；A diameter of D of described generator assembly air inlet 2-1-44, D4Value meets in the range of 40 ~
50 mm, D in this detailed description of the invention4Value be 45 mm；A diameter of D of described steam vent 2-1-25, steam vent 2-1-2's
The ratio E=D of the diameter of diameter and air inlet 2-1-44/D5, it is 0.1 ~ 0.5 that the value of E meets scope, permissible by changing E value
Changing the flow of obtained compressed gas, in this detailed description of the invention, the value of E is 0.2；Described a diameter of by aerofoil 2-5-1
D, D4It is N=D with the difference of d4-d, N value meets in the range of 4 ~ 8 mm, can be changed by aerofoil 2-5-1 institute by regulation N value
By compressed-air actuated surge, in this detailed description of the invention, the value of N is 5 mm；Described plectrum 2-5-3 is each other
Distance is M, can be changed the generated energy of dial type electrification component 2 by regulation M value, and M value meets in the range of 8 ~ 12 mm,
In this detailed description of the invention, the value of M is 10 mm；Described plectrum 2-5-3 has angle of inclination beta, and the value of β meets in the range of 5 ~
20 °, can be changed the rigidity of plectrum 2-5-3 by regulation angle beta, in this detailed description of the invention, the value of β is 15 °；Described group
Sheet 2-5-3 has height value h, and scope 10 ~ 15 mm that the value of h meets, in this detailed description of the invention, the value of h is 12 mm.
Described gas gauge circuit mainly includes diode (D6~D9) and electric capacity C1.When incremental gas is from jet-impingement end
After 1-5 flows out, encourage dial type electrification component 2, the change of positive and negative alternating cyclical can be produced under the effect of direct piezoelectric effect
The signal of telecommunication, is wired to the input of energy collection circuit by the signal of telecommunication of generation.When producing the forward signal of telecommunication, two
Pole pipe D6With diode D9Conducting constitutes closed-loop path, and electric energy can be stored in electric capacity C1In；When producing the negative sense signal of telecommunication, two poles
Pipe D7With diode D8Conducting constitute the electric signal streams behind closed-loop path, and rectification to diode D6, diode D9Closed-loop path
Electric signal streams is to identical, and therefore electric energy is still stored in electric capacity C1In.Electric energy after over commutation stores can be via C1Flow out to output
Internet of things node is powered by end.Described diode (D6~D9) can be NI 5408 commutation diode, described electric capacity C1Electricity
Range of capacity is 100 ~ 1000 μ F.
Comprehensive above said content, gas flow and flow velocity can be amplified by the piezoelectric harvester of present invention design, and then will
Piezoelectric energy-capturing efficiency improves more than 3 times.Energy supply technical field at low power dissipation electron equipment such as Internet of things nodes has widely
Application prospect.Meanwhile, the intelligent level improving industry manufacture equipment technology had facilitation.
Claims (10)
1. the dial type piezoelectric harvester for the annular space jet excitation of Internet of things node energy supply, it is characterised in that this is stirred
Formula piezoelectric harvester includes the incremental assembly in micropore (1), dial type electrification component (2) and holding screw (3), incremental group of micropore
Part (1) is threadeded with dial type electrification component (2) by holding screw (3)；The incremental assembly in described micropore (1) includes gas
Flow into end (1-1), suction end sealing ring (1-2), fixing 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)；Described gas flows into end (1-1) with fixing sleeve (1-3) by inhaling
Gas end screw (1-7) is threaded, and gas flows into end (1-1) with fixing sleeve (1-3) by suction end sealing ring (1-2) gas
Seal；Described fixing sleeve (1-3) is threadeded with jet-impingement end (1-5) by jet end screw (1-6), fixing sleeve
(1-3) by jet end sealing ring (1-4) and jet-impingement end (1-5) air seal；Described dial type electrification component (2) includes
Piston installing rack (2-1), electrification component installing rack (2-2), piezo-electric generating assembly (2-3), trip bolt (2-4), piston (2-5)
With spring (2-6)；Described piston installing rack (2-1) is by trip bolt (2-4) with electrification component installing rack (2-2) screw thread even
Connect；Described electrification component installing rack (2-2) is connected with piezo-electric generating assembly (2-3)；Described piston (2-5) and piston installing rack
(2-1) connect.
The dial type piezoelectric energy-capturing of a kind of annular space jet excitation for Internet of things node energy supply the most according to claim 1
Device, it is characterised in that described gas flows into end (1-1) and is provided with suction hole (1-1-1), gas flows into end (1-1) and is provided with gas
Flowing into end screwed hole (1-1-2), gas flows into end screwed hole (1-1-2) and threadeds with suction end screw (1-7)；Gas flows into
End (1-1) is provided with suction end o-ring groove (1-1-3)；Gas flows into end (1-1) and is provided with gas inflow end intercommunicating pore (1-
1-4).
The dial type piezoelectric energy-capturing of a kind of annular space jet excitation for Internet of things node energy supply the most according to claim 1
Device, it is characterised in that described fixing sleeve (1-3) is provided with suction end bush whorl hole (1-3-1), suction end bush whorl hole
(1-3-1) threaded with suction end screw (1-7)；Fixing sleeve (1-3) is provided with air inlet (1-3-2)；Fixing sleeve (1-
3) jet end bush whorl hole (1-3-3), jet end bush whorl hole (1-3-3) and jet end screw (1-6) screw thread it are provided with
Connect.
The dial type piezoelectric energy-capturing of a kind of annular space jet excitation for Internet of things node energy supply the most according to claim 1
Device, it is characterised in that described jet-impingement end (1-5) 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) and flow-increasing device screwed hole (1-5-4)；Jet end screwed hole (1-5-3) and jet end spiral shell
Nail (1-6) is threaded；Flow-increasing device screwed hole (1-5-4) is threadeded with holding screw (3)；Jet-impingement end (1-5) sets
It is equipped with tapered injection QI KOU (1-5-5).
The dial type piezoelectric energy-capturing of a kind of annular space jet excitation for Internet of things node energy supply the most according to claim 1
Device, it is characterised in that piston installing rack (2-1) is provided with generator assembly screwed hole (2-1-1), steam vent (2-1-2), piston
Slide opening (2-1-3) and generator assembly air inlet (2-1-4)；Generator assembly screwed hole (2-1-1) and holding screw (3) screw thread
Connect.
The dial type piezoelectric energy-capturing of a kind of annular space jet excitation for Internet of things node energy supply the most according to claim 1
Device, it is characterised in that described electrification component installing rack (2-2) is provided with electrification component installing hole (2-2-1), routing hole (2-2-2)
With installation through hole (2-2-3)；Described electrification component installing hole (2-2-1) is fixed with piezo-electric generating assembly (2-3)；Described installation is led to
Threaded with trip bolt (2-4) in hole (2-2-3).
The dial type piezoelectric energy-capturing of a kind of annular space jet excitation for Internet of things node energy supply the most according to claim 1
Device, it is characterised in that described piezo-electric generating assembly (2-3) is provided with elastic base plate (2-3-1), elastic base plate (2-3-1) and generating
Assembly installing hole (2-2-1) is fixed；Piezo-electric generating assembly (2-3) is provided with piezoelectric element (2-3-2), piezoelectric element (2-3-2)
Gluing with elastic base plate (2-3-1) fixing；Described piston (2-5) is provided with by aerofoil (2-5-1), traveller (2-5-2) and plectrum
(2-5-3).
The dial type piezoelectric energy-capturing of a kind of annular space jet excitation for Internet of things node energy supply the most according to claim 1
Device, it is characterised in that gas flow into the span that embedded length is L, L between end (1-1) and jet-impingement end (1-5) be 10 ~
20 mm；A diameter of D of described suction hole (1-1-1)0, gas flows into end intercommunicating pore (1-1-4) a diameter of D1, suction hole (1-1-
1) the diameter ratio of end intercommunicating pore (1-1-4) is flowed into gas for H=D0/D1, the span of H is 1.1 ~ 1.5；Described gas flows into
End intercommunicating pore (1-1-4) diameter D1It is G=L/D with the ratio of embedded length L1, the span of G is 0.1 ~ 0.5；Described taper jet
The span that cone angle is α, α of mouth (1-5-5) is 0 ~ 25 °.
The dial type piezoelectric energy-capturing of a kind of annular space jet excitation for Internet of things node energy supply the most according to claim 1
Device, it is characterised in that a diameter of D of described generator assembly air inlet (2-1-4)4, D4Span be 40 ~ 50 mm；Described
A diameter of D of steam vent (2-1-2)5, the diameter of steam vent (2-1-2) and generator assembly air inlet (2-1-4) ratio is for E=D4/
D5, the span of E is 0.1 ~ 0.5；Described a diameter of d, D by aerofoil (2-5-1)4It is N=D with the difference of d4The value of-d, N
Scope is 4 ~ 8 mm；Described plectrum (2-5-3) has angle of inclination beta, and the span of β is 5 ~ 20 °；The height of plectrum (2-5-3) is
Span 10 ~ 15 mm of h, h.
Dial type electrification component (2) the most according to claim 1, it is characterised in that piezoelectric element (2-3-2) can be selected for pressure
Electroceramics sheet PZT or flexible obdurability piezoelectric element 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681922A (en) * | 2017-10-31 | 2018-02-09 | 长春工业大学 | A kind of rotary type piezoelectric harvester based on magnetic excitation |
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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 |
| US20140319970A1 (en) * | 2013-04-24 | 2014-10-30 | California Institute Of Technology | Flow energy piezoelectric bimorph nozzle harvester |
| 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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| 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 |
| US20140319970A1 (en) * | 2013-04-24 | 2014-10-30 | California Institute Of Technology | Flow energy piezoelectric bimorph nozzle harvester |
| 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 |
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| CN107681922A (en) * | 2017-10-31 | 2018-02-09 | 长春工业大学 | A kind of rotary type piezoelectric harvester based on magnetic excitation |
| 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 |
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| CN106329995B (en) | 2018-03-30 |
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