CN106301073A - A kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation - Google Patents
A kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation Download PDFInfo
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- CN106301073A CN106301073A CN201610821653.5A CN201610821653A CN106301073A CN 106301073 A CN106301073 A CN 106301073A CN 201610821653 A CN201610821653 A CN 201610821653A CN 106301073 A CN106301073 A CN 106301073A
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
Abstract
The invention discloses a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation, to solve in current industrial environment for capturing the technical problems such as the generating efficiency of micro-energy generator existence of gas pressure energy is low.The present invention includes micropore gas flow rate increment device, double diaphragm type electrification component and holding screw.Micropore gas flow rate increment device is threadeded with double diaphragm type electrification components by holding screw.Described micropore gas flow rate increment device can induce outside air to be oriented movement under the effect of high-pressure low-flow gas, and the gas after induction is carried out speedup and incremental, discharge from taper jet end and act on the double diaphragm type electrification components being connected with micropore gas flow rate increment device and generate electricity.Gas flow can be amplified by the double acting diaphragm type piezoelectric generator of present invention design, and then the generating efficiency of electromotor is improved more than 3 times.In low power dissipation electron equipment energy supply technical field, there is wealthy application prospect.
Description
Technical field
The present invention relates to a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation, belong to low power dissipation electron
Equipment energy supply technical field.
Background technology
Along with advanced manufacturing set technology constantly strides forward towards intellectuality, lightweight, miniaturization and integrated direction, and accompany
Along with its depth integration with low power dissipation electron equipment energy supply technology so that substantial amounts of Internet of things node, low-power consumption sensor and
The low power dissipation electron equipment such as low energy-consumption electronic device are made equipment technology field at first system and are widely applied.This is also to low merit simultaneously
The energy supply technical merit of power consumption subset proposes higher requirement.Therefore, to the low-power consumption such as low energy-consumption electronic device, Internet of things node
Electronic equipment provides reliable and stable lasting energy supply, is to ensure that its premise normally worked.Current advanced manufacturing set technology neck
The energy-provision way of the Internet of things node in territory, low energy-consumption electronic device etc. mainly includes the direct energy supply of power supply and two kinds of sides of chemical cell energy supply
Formula.Wherein, there is the problems such as electromagnetic interference is serious, system wiring is complicated in the direct energy-provision way of power supply, and chemical cell supplier of electricity
Formula then exists that battery is limited, need to regularly replace and the deficiency such as environmental pollution.As can be seen here, a kind of New Energy of research
Many drawbacks that source capture is brought to solve tradition energy supply technology with transformation technology are particularly important.
Self energizing technology based on piezoelectric element is owing to having simple in construction, not generating heat, without electromagnetic interference and life-span length etc.
Advantage, it has also become one of study hotspot problem of the capture of current environment micro-energy and transformation technology.It can be by big in industrial environment
The reproducible micro-energy of the cleaning (such as gas pressure energy) that amount exists is converted into the electric energy of needs and holds for low power dissipation electron equipment
Continuous power supply reliably, this technical research can effectively solve conventional power source band of powering that the wiring brought is complicated and chemical cell is powered
That comes needs the problem such as periodic replacement, pollution environment.But, the current electromotor in industrial environment mostly can not be by gas pressure
Energy is converted into electric energy, or relatively low this type of electromotor that constrains of energy conversion efficiency is in Internet of things node, low-power consumption sensing
The application of the low power dissipation electron equipment energy supply technical field such as device and low energy-consumption electronic device.
Summary of the invention
There is energy capture efficiency in the micro-energy generator for solving to be used for capturing gas pressure energy in current industrial environment
The technical problem such as low, the present invention discloses a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation, for low-power consumption
Electronic equipment provides a kind of efficient micro-energy resource supply device.
The technical solution adopted in the present invention is:
Described a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation includes micropore gas flow rate increment device, tightening
Screw and double diaphragm type electrification component, micropore gas flow rate increment device is by holding screw with double diaphragm type electrification component screw threads even
Connect；Described micropore gas flow rate increment device includes taper suction end, suction end screw, fixing sleeve, taper jet end, jet end spiral shell
Nail, jet end sealing ring and suction end sealing ring；Described taper suction end and fixing sleeve are close by suction end sealing ring gas
Envelope, taper suction end is connected by suction end screw thread with fixing sleeve；Described taper jet end and fixing sleeve are by spray
Gas end sealing ring air seal, taper jet end is connected by jet end screw thread with fixing sleeve；Described pair of diaphragm type is sent out
Electricity assembly includes electrification component fixed mount, fan-shaped electrification component, flow-disturbing diaphragm and rectangular power generation assembly；Described electrification component is fixed
Frame is fastenedly connected with fan-shaped electrification component, and electrification component fixed mount is fastenedly connected with rectangular power generation assembly, rectangular power generation assembly and
Flow-disturbing diaphragm is fastenedly connected.
Described taper suction end is provided with conduction hole, suction end through hole, suction end o-ring groove and taper suction end spiral shell
Pit；Taper suction end screwed hole is connected with suction end screw thread.
Described fixing sleeve is provided with bush whorl hole I, and bush whorl hole I is connected with suction end screw thread；Fixed cover
Cylinder is provided with air inlet；Fixing sleeve is provided with bush whorl hole II, and bush whorl hole II is connected with jet end screw thread.
Described taper jet end is provided with jet end intercommunicating pore, tapered injection QI KOU, jet end screwed hole, flow-increasing device screw thread
Hole and jet end o-ring groove；Described jet end screw is threadeded with jet end screwed hole, and flow-increasing device screwed hole is with tight
Determining screw thread to connect, jet end sealing ring is fixed with jet end o-ring groove.
Described electrification component fixed mount is provided with electromotor inlet end, electromotor gas outlet, swivelling chute I, installs screwed hole
With swivelling chute II；Swivelling chute I is fixed with rectangular power generation assembly, and swivelling chute II is fixed with fan-shaped electrification component, install screwed hole with
Holding screw is threaded.
Described fan-shaped electrification component is provided with fan-shaped metal basal board and piezoelectric element I, fan-shaped metal basal board and piezoelectric element I
Fixing；Described flow-disturbing diaphragm arrangement has electrification component counterbore, electrification component counterbore to fix with rectangular power generation assembly；Flow-disturbing diaphragm sets
It is equipped with intrados and extrados；Described rectangular power generation assembly is provided with rectangular metal substrate and piezoelectric element II, rectangular metal base
Plate and piezoelectric element II are fixed.
Described conduction hole radius is R0, suction end through hole radius is R1, conduction hole is E=with the radius ratio of suction end through hole
R0/R1, E value meets in the range of 1 ~ 1.5；Described jet end intercommunicating pore radius is R3, jet end intercommunicating pore and suction end through hole
Radius ratio is F=R3/R1, F value meets in the range of 1.2 ~ 1.5；Jet end intercommunicating pore is D=R with the radius ratio of air inlet3/R2, D
Value meets in the range of 5 ~ 8.
The radius of described fan-shaped metal basal board is R4, R4Span be 35 ~ 45 mm；Described piezoelectric element I is a length of
A, the length of piezoelectric element I is M=a/R with fan-shaped metal basal board radius ratio4, the span of M is 0.3 ~ 0.7；Described intrados
Radius of corner be R5, R5Span be 5 ~ 10 mm.
In described fan-shaped electrification component, in piezoelectric element I and rectangular power generation assembly, piezoelectric element II can select piezoelectric ceramics
Sheet PZT or flexible obdurability piezoelectric PVDF.
The piezoelectric generator operation principle of present invention design is that the direct piezoelectric effect utilizing piezoelectric element realizes gas pressure
Can convert to electric energy, it can induce outside air to be oriented flowing under the effect of high-pressure low-flow gas, can to induction after
Outside air carry out speedup, flow out from taper jet end after gas speedup and act on flexible rhombus TRT and realize electricity
Can convert.Micropore flow amplification device has a miniature hole of loop, owing to the diameter of hole is minimum, at gases at high pressure
The air-flow ejected under effect is very fast.When the flowing of quick gas causes piezoelectric generator internal pressure less than external air pressure
Time, extraneous air will be inhaled into micropore flow amplification device uniformly, it is achieved incremental purpose.Double diaphragm type electrification components
It is a technical advantage that it uses dish-type array architecture, can at less spatially layout piezoelectric element as much as possible,
Piezoelectric element is made to produce deformation, more efficiently the pressure energy in capture gas by the fan-shaped electrification component of impact.
The invention has the beneficial effects as follows: under not affecting industrial working condition, utilize the micropore gas invented
Body flow rate increment device can induce outside air displacement under the effect of high-pressure low-flow gas, and increases the gas after induction
Fast and incremental, act on, from the discharge of taper jet end, the double diaphragm type electrification components being connected with micropore gas flow rate increment device and carry out
Energy converts.The electromotor of present invention design is by gas flow rate and Flow amplification, and then the generating efficiency of electromotor can be improved 3
More than Bei.It is with a wide range of applications in technical fields such as low-power consumption sensor, low energy-consumption electronic device energy supplies.
Accompanying drawing explanation
Fig. 1 show the knot of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Structure schematic diagram；
Fig. 2 show the micropore of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Gas flow rate increment device structural representation；
Fig. 3 show the taper of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes and inhales
Gas end structure sectional view；
Fig. 4 show the fixed cover of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Barrel structure sectional view；
Fig. 5 show the tapered injection of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Gas end structure sectional view；
Fig. 6 show the tapered injection of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Gas end structure partial sectional view；
Fig. 7 show the taper of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes and inhales
Gas end and taper jet end office (EO) portion's series connection structure sectional view；
Fig. 8 show double diaphragms of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Formula electrification component structure sectional view；
Fig. 9 show the generating set of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Part fixed rack structure sectional view；
Figure 10 show the sector of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Electrification component structural representation；
Figure 11 show the rectangle of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Electrification component flow-disturbing diaphragm sectional view；
Figure 12 show the rectangle of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Electrification component structure sectional view；
Figure 13 show the rectification of a kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation that the present invention proposes
Circuit diagram.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1 ~ Figure 13 and present embodiment is described.Present embodiments provide for one and utilize ring
The specific embodiments of the double acting diaphragm type piezoelectric generator of gap jet excitation.Described a kind of utilize the double of annular space jet excitation
Effect diaphragm type piezoelectric generator includes micropore gas flow rate increment device 1, holding screw 2 and double diaphragm type electrification components 3.Wherein,
Micropore gas flow rate increment device 1 is threaded by holding screw 2 and double diaphragm type electrification component 3.
Described micropore gas flow rate increment device 1 includes taper suction end 1-1, suction end screw 1-2, fixing sleeve 1-3, cone
Shape jet end 1-4, jet end screw 1-5, jet end sealing ring 1-6 and suction end sealing ring 1-7.Described taper suction end 1-1
With fixing sleeve 1-3 by suction end sealing ring 1-7 air seal；Described taper suction end 1-1 and fixing sleeve 1-3 is by inhaling
End screw 1-2 is threaded for gas.Described taper jet end 1-4 and fixing sleeve 1-3 carries out gas by jet end sealing ring 1-6
Seal；Described taper jet end 1-4 and fixing sleeve 1-3 is threadeded by jet end screw 1-5.Described taper suction end 1-
1 is provided with conduction hole 1-1-1, and induction ambient atmos is entered taper suction end 1-1 by conduction hole 1-1-1；Described taper suction end
1-1 is provided with suction end through hole 1-1-2, and inducing gas discharges taper suction end 1-1 via suction end through hole 1-1-2；Described cone
Shape suction end 1-1 is provided with suction end o-ring groove 1-1-3, and it is close that suction end o-ring groove 1-1-3 is used for installing suction end
Seal 1-7；Described taper suction end 1-1 is provided with taper suction end screwed hole 1-1-4, described taper suction end screwed hole 1-1-
4 with suction end screw 1-2 with threaded.Described fixing sleeve 1-3 is provided with bush whorl hole I 1-3-1, described bush whorl
Hole I 1-3-1 is threadeded with suction end screw 1-2；Described fixing sleeve 1-3 is provided with air inlet 1-3-2, and compressed gas is by entering
Pore 1-3-2 enters fixing sleeve 1-3；Described fixing sleeve 1-3 is provided with bush whorl hole II 1-3-3, described bush whorl
Hole II 1-3-3 is threadeded with jet end screw 1-5.Described taper jet end 1-4 is provided with jet end intercommunicating pore 1-4-1, mixed
Close gas and entered taper jet end 1-4 by jet end intercommunicating pore 1-4-1；Described taper jet end 1-4 is provided with tapered injection QI KOU
1-4-2, mixed gas is via tapered injection QI KOU 1-4-2 ejection micropore gas flow rate increment device 1；Described taper jet end 1-4 is arranged
Jet end screwed hole 1-4-3, jet end screw 1-5 is had to threaded with jet end screwed hole 1-4-3；Described taper jet end 1-
4 are provided with flow-increasing device screwed hole 1-4-4；Described flow-increasing device screwed hole 1-4-4 is threadeded with holding screw 2；Described cone
Shape jet end 1-4 is provided with jet end o-ring groove 1-4-5, and it is close that jet end o-ring groove 1-4-5 is used for installing jet end
Seal 1-6.
Described pair of diaphragm type electrification component 3 includes electrification component fixed mount 3-1, fan-shaped electrification component 3-2, flow-disturbing diaphragm 3-
3 and rectangular power generation assembly 3-4.Described electrification component fixed mount 3-1 is fastenedly connected with fan-shaped electrification component 3-2；Described generating set
Part fixed mount 3-1 is fastenedly connected with rectangular power generation assembly 3-4；Described rectangular power generation assembly 3-4 and flow-disturbing diaphragm 3-3 fastening is even
Connect.Described electrification component fixed mount 3-1 is provided with electromotor inlet end 3-1-1, and mixed gas is via electromotor inlet end 3-1-1
Enter；Described electrification component fixed mount 3-1 is provided with electromotor gas outlet 3-1-2, and mixed gas is through electromotor gas outlet 3-1-2
Discharge double diaphragm type electrification component 3；Described electrification component fixed mount 3-1 is provided with swivelling chute I 3-1-3, rectangular power generation assembly 3-4
Fixed with electrification component fixed mount 3-1 by swivelling chute I 3-1-3；Described electrification component fixed mount 3-1 is provided with swivelling chute II 3-
1-5, fan-shaped electrification component 3-2 are fixed with electrification component fixed mount 3-1 by swivelling chute II 3-1-5；Described electrification component is fixed
Frame 3-1 is provided with installation screwed hole 3-1-4, described installation screwed hole 3-1-4 and threadeds with holding screw 2.Described sector is sent out
Electricity assembly 3-2 is provided with fan-shaped metal basal board 3-2-1, and described fan-shaped electrification component 3-2 is provided with piezoelectric element I 3-2-2, fan-shaped
Metal basal board 3-2-1 and piezoelectric element I 3-2-2 connects by epoxide resin AB is gluing, and can realize gas pressure can turning to electric energy
Change, and by full bridge rectifier, energy is managed；In this detailed description of the invention, piezoelectric element I 3-2-2 can use Ha Er
The piezoelectric ceramic piece PZT of grand several Xue Qi producers of Bin Xin company's tomorrow and Baoding；Piezoelectric element 3-in this detailed description of the invention
2-2 may be used without the flexible obdurability piezoelectric PVDF of essence amount electronics (Shenzhen) company limited of the U.S..Described flow-disturbing diaphragm 3-3
It is provided with electrification component counterbore 3-3-1, flow-disturbing diaphragm 3-3 to be fixed with rectangular power generation assembly 3-4 by electrification component counterbore 3-3-1
Connect；Described flow-disturbing diaphragm 3-3 is provided with intrados 3-3-2, described flow-disturbing diaphragm 3-3 and is provided with extrados 3-3-3, is used for hindering
Gear mixed gas, promotes rectangular power generation assembly 3-4 to deform upon.Described rectangular power generation assembly 3-4 is provided with rectangular metal substrate
3-4-1, described rectangular power generation assembly 3-4 are provided with piezoelectric element II 3-4-2, described rectangular metal substrate 3-4-1 and piezoelectricity unit
Part II 3-4-2 connects by epoxide resin AB is gluing.
Taper suction end 1-1 in described micropore gas flow rate increment device 1 is provided with conduction hole 1-1-1, described conduction hole 1-
The radius of 1-1 is R0, described taper suction end 1-1 is provided with the half of suction end through hole 1-1-2, described suction end through hole 1-1-2
Footpath is R1, the radius ratio of conduction hole 1-1-1 and suction end through hole 1-1-2 is E=R0/R1, E value meets in the range of 1 ~ 1.5, passes through
Regulation E value can change ambient atmos and enter the flow velocity of suction end through hole 1-1-2；In this detailed description of the invention, the value of E is
1.2.Described fixing sleeve 1-3 is provided with air inlet 1-3-2, and the radius of air inlet 1-3-2 is R2, described air inlet 1-3-2 half
The relation that footpath, conduction hole 1-1-1 radius and suction end through hole 1-1-2 radius meet is R0=R1+k R2, k value meet model
Enclosing is 0 ~ 0.3, can be changed flow and the flow velocity flowing into mixed gas in suction end through hole 1-1-2 by regulation k value；This is concrete
In embodiment, k value is 0.Described taper jet end 1-4 is provided with jet end intercommunicating pore 1-4-1, described jet end intercommunicating pore
The radius of 1-4-1 is R3, the radii ratio of jet end intercommunicating pore 1-4-1 and suction end through hole 1-1-2 is F=R3/R1, F value meets
In the range of 1.2 ~ 1.5, mixed gas can be changed by regulation F value and flow into the flow in jet end intercommunicating pore 1-4-1；This tool
In body embodiment, the value of F is 1.2.The radii ratio of described jet end intercommunicating pore 1-4-1 and air inlet 1-3-2 is D=R3/
R2, the concrete scope that D value meets is 5 ~ 8, can regulate mixed gas entrance jet end intercommunicating pore 1-4-1's by changing D value
Flow and flow velocity；In this detailed description of the invention, the value of D is 6.Described tapered injection QI KOU 1-4-2 taper angle in the axial direction
Meet in the range of 0 ~ 30 ° for θ, θ value, the mixed gas of taper jet end 1-4 ejection can be regulated by the value of regulation θ
Flow velocity；In this detailed description of the invention, the value of θ is 20 °.Weight between described taper suction end 1-1 and taper jet end 1-4
Conjunction partial-length is that w, w value meets in the range of 10 ~ 20 mm, can be changed the fluidised form of mixed gas by the value of regulation w；
In this detailed description of the invention, the value of w is 15 mm.
Fan-shaped electrification component 3-2 circumferentially circular array in described pair of diaphragm type electrification component 3 is arranged, described 4n fan
Shape electrification component 3-2 collectively constitutes circle, and the value of n is the integer more than or equal to 1, the value of n in this detailed description of the invention
It is 1.Described fan-shaped electrification component 3-2 is provided with fan-shaped metal basal board 3-2-1, fan-shaped electrification component 3-2 and is provided with piezoelectric element I
3-2-2, the radius value of described fan-shaped metal basal board 3-2-1 is R4, R4Value meets in the range of 35 ~ 45 mm, passes through regulation fan
The radius R of shape metal basal board 3-2-14Value can change the rigidity of fan-shaped metal basal board 3-2-1；R in this detailed description of the invention4
Value be 45 mm.Described piezoelectric element I 3-2-2 has length value a, length a of piezoelectric element I 3-2-2 and fan-shaped Metal Substrate
The radius R of plate 3-2-14Ratio be M=a/R4, M value meets in the range of 0.3 ~ 0.7, can change sector by regulation M value
The generating effect of electrification component 3-2；In this detailed description of the invention, the value of M is 0.3；Described piezoelectric element I 3-2-2 has width
The value of value b, b and the ratio of the value of a are that N=b/a, N value meets in the range of 0.2 ~ 0.4, N in this detailed description of the invention
Value be 0.2.Described piezoelectric element II 3-4-2 has length value c, width be the ratio of d, c and d be P=c/d, P value meet
In the range of 3 ~ 5, the rigidity of piezoelectric element II 3-4-2 can be changed by regulation P value；The value of P in this detailed description of the invention
It is 4.Described flow-disturbing diaphragm 3-3 is provided with intrados 3-3-2 and extrados 3-3-3, described intrados 3-3-2 and has radius of corner
Value R5, R5Value meets in the range of 5 ~ 10 mm, R in this detailed description of the invention5Value be 6 mm；Described extrados 3-3-3
There is radius of corner value R6, R6With R5Ratio be Q=R6/R5, Q value meets in the range of 1 ~ 2.5；Q in this detailed description of the invention
Value be 1.5.Length L of described rectangular metal substrate 3-4-1, length L of described rectangular metal substrate 3-4-1, piezoelectricity unit
The relation that length c of part II 3-4-2 and width d meet is L=c+ λ d, and the span of λ is 0.5 ~ 1.5, by regulation λ value
The generating effect of rectangular power generation assembly 3-4 can be changed；In this detailed description of the invention, the value of λ is 1.
Described full bridge rectifier includes diode (D6~D9) and electric capacity C1.When incremental gas is from taper jet end 1-4
After outflow, the double diaphragm type electrification component 3 of excitation, the positive and negative alternating cyclical signal of telecommunication can be produced under the effect of direct piezoelectric effect,
The signal of telecommunication of generation is wired to the input of full bridge rectifier.When producing the forward signal of telecommunication, diode D6
With diode D9Conducting constitutes closed-loop path, and electric energy can be stored in electric capacity C1In；When producing the negative sense signal of telecommunication, diode D7With
Diode D8Conducting constitute the electric signal streams behind closed-loop path, and rectification to diode D6, diode D9The closed-loop path signal of telecommunication
Flowing to identical, therefore electric energy is still stored in electric capacity C1In.Electric energy after over commutation stores can be via C1Flow out to outfan to low
Power consumption electronic equipment is powered.Described diode (D6~D9) can be NI 5408 commutation diode, described electric capacity C1Electric capacity
Weight range is 100 ~ 1000 μ F.
In sum, the piezoelectric generator of present invention design can solve in current industrial environment for capturing gas pressure energy
Micro-energy generator there is the technical problems such as energy capture efficiency is low.And this piezoelectric generator gas flow rate and flow are put
Greatly, and then the generating efficiency of electromotor can be improved more than 3 times.At the low power dissipation electron such as low-power consumption sensor, low energy-consumption electronic device
The technical field of equipment energy supply is with a wide range of applications.
Claims (9)
1. the double acting diaphragm type piezoelectric generator utilizing annular space jet excitation, it is characterised in that this double acting diaphragm type pressure
Electric generator includes micropore gas flow rate increment device (1), holding screw (2) and double diaphragm type electrification component (3), and micropore gas increases
Stream device (1) is threadeded with double diaphragm type electrification components (3) by holding screw (2)；Described micropore gas flow rate increment device (1) is wrapped
Include taper suction end (1-1), suction end screw (1-2), fixing sleeve (1-3), taper jet end (1-4), jet end screw (1-
5), jet end sealing ring (1-6) and suction end sealing ring (1-7)；Described taper suction end (1-1) is led to fixing sleeve (1-3)
Crossing suction end sealing ring (1-7) air seal, taper suction end (1-1) and fixing sleeve (1-3) are by suction end screw (1-2)
Threaded；Described taper jet end (1-4) and fixing sleeve (1-3) are by jet end sealing ring (1-6) air seal, taper
Jet end (1-4) is threadeded by jet end screw (1-5) with fixing sleeve (1-3)；Described pair of diaphragm type electrification component (3)
Including electrification component fixed mount (3-1), fan-shaped electrification component (3-2), flow-disturbing diaphragm (3-3) and rectangular power generation assembly (3-4)；Institute
Stating electrification component fixed mount (3-1) to be fastenedly connected with fan-shaped electrification component (3-2), electrification component fixed mount (3-1) is sent out with rectangle
Electricity assembly (3-4) is fastenedly connected, and rectangular power generation assembly (3-4) is fastenedly connected with flow-disturbing diaphragm (3-3).
A kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation the most according to claim 1, its feature
It is that described taper suction end (1-1) is provided with conduction hole (1-1-1), suction end through hole (1-1-2), suction end o-ring groove
(1-1-3) with taper suction end screwed hole (1-1-4)；Taper suction end screwed hole (1-1-4) and suction end screw (1-2) screw thread
Connect.
A kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation the most according to claim 1, its feature
It is that described fixing sleeve (1-3) is provided with bush whorl hole I (1-3-1), bush whorl hole I (1-3-1) and suction end screw
(1-2) threaded；Fixing sleeve (1-3) is provided with air inlet (1-3-2)；Fixing sleeve (1-3) is provided with bush whorl hole
II (1-3-3), threadeds with jet end screw (1-5) in bush whorl hole II (1-3-3).
A kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation the most according to claim 1, its feature
It is that described taper jet end (1-4) is provided with jet end intercommunicating pore (1-4-1), tapered injection QI KOU (1-4-2), jet end screw thread
Hole (1-4-3), flow-increasing device screwed hole (1-4-4) and jet end o-ring groove (1-4-5)；Described jet end screw (1-5)
Threadeding with jet end screwed hole (1-4-3), flow-increasing device screwed hole (1-4-4) is threadeded with holding screw (2), jet
End sealing ring (1-6) is fixed with jet end o-ring groove (1-4-5).
A kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation the most according to claim 1, its feature
It is that described electrification component fixed mount (3-1) is provided with electromotor inlet end (3-1-1), electromotor gas outlet (3-1-2), rotation
Groove I (3-1-3), installation screwed hole (3-1-4) and swivelling chute II (3-1-5)；Swivelling chute I (3-1-3) and rectangular power generation assembly (3-
4) fixing, swivelling chute II (3-1-5) is fixed with fan-shaped electrification component (3-2), installs screwed hole (3-1-4) and holding screw (2)
Threaded.
A kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation the most according to claim 1, its feature
It is that described fan-shaped electrification component (3-2) is provided with fan-shaped metal basal board (3-2-1) and piezoelectric element I (3-2-2), fan-shaped metal
Substrate (3-2-1) is fixed with piezoelectric element I (3-2-2)；Described flow-disturbing diaphragm (3-3) is provided with electrification component counterbore (3-3-1),
Electrification component counterbore (3-3-1) is fixed with rectangular power generation assembly (3-4)；Flow-disturbing diaphragm (3-3) be provided with intrados (3-3-2) and
Extrados (3-3-3)；Described rectangular power generation assembly (3-4) is provided with rectangular metal substrate (3-4-1) and piezoelectric element II (3-4-
2), rectangular metal substrate (3-4-1) and piezoelectric element II (3-4-2) are fixed.
A kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation the most according to claim 1, its feature
It is that described conduction hole (1-1-1) radius is R0, suction end through hole (1-1-2) radius is R1, conduction hole (1-1-1) and suction end
The radius ratio of through hole (1-1-2) is E=R0/R1, E value meets in the range of 1 ~ 1.5；Described jet end intercommunicating pore (1-4-1) radius
For R3, jet end intercommunicating pore (1-4-1) is F=R with the radius ratio of suction end through hole (1-1-2)3/R1, F value meet in the range of
1.2~1.5；Jet end intercommunicating pore (1-4-1) is D=R with the radius ratio of air inlet (1-3-2)3/R2, D value meets in the range of 5 ~
8。
A kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation the most according to claim 1, its feature
The radius being described fan-shaped metal basal board (3-2-1) is R4, R4Span be 35 ~ 45 mm；Described piezoelectric element I (3-
2-2) a length of a, the length of piezoelectric element I (3-2-2) is M=a/R with fan-shaped metal basal board (3-2-1) radius ratio4, the value of M
Scope is 0.3 ~ 0.7；The radius of corner of described intrados (3-3-2) is R5, R5Span be 5 ~ 10 mm.
A kind of double acting diaphragm type piezoelectric generator utilizing annular space jet excitation the most according to claim 1, its feature
It is in described fan-shaped electrification component (3-2) piezoelectric element II (3-in piezoelectric element I (3-2-2) and rectangular power generation assembly (3-4)
Piezoelectric ceramic piece PZT or flexible obdurability piezoelectric PVDF 4-2) can be selected.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108884822A (en) * | 2017-07-28 | 2018-11-23 | 深圳市大疆创新科技有限公司 | diaphragm pump |
| CN111181441A (en) * | 2020-01-07 | 2020-05-19 | 哈尔滨工业大学 | Multi-disc circumference arranged's atmospheric pressure energy converter under flexible seal |
| CN112886864A (en) * | 2021-02-03 | 2021-06-01 | 南京理工大学 | C-type turbulence adjustable series-connection fluid energy piezoelectric energy harvester |
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| 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 |
| CN105932907A (en) * | 2016-06-15 | 2016-09-07 | 浙江师范大学 | Vortex-excitation piezoelectric energy harvester for monitoring wind power gear box |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020036448A1 (en) * | 2000-09-27 | 2002-03-28 | Noboru Kageyama | 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 |
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Cited By (4)
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|---|---|---|---|---|
| CN108884822A (en) * | 2017-07-28 | 2018-11-23 | 深圳市大疆创新科技有限公司 | diaphragm pump |
| CN111181441A (en) * | 2020-01-07 | 2020-05-19 | 哈尔滨工业大学 | Multi-disc circumference arranged's atmospheric pressure energy converter under flexible seal |
| CN111181441B (en) * | 2020-01-07 | 2022-11-29 | 哈尔滨工业大学 | Multi-disc circumference arranged's atmospheric pressure energy converter under flexible seal |
| CN112886864A (en) * | 2021-02-03 | 2021-06-01 | 南京理工大学 | C-type turbulence adjustable series-connection fluid energy piezoelectric energy harvester |
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| CN106301073B (en) | 2018-03-06 |
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