A kind of spherical shape electret wave energy generating set
Technical field
The invention belongs to new energy fields, and in particular to a kind of spherical shape electret wave energy generating set.
Background technique
With the increasingly reduction of economic rapid growth and non-regeneration energy, the exploitation of new energy is increasingly by weight
Depending on.Ocean covers the area of 70% or more the earth, wherein containing a large amount of clean energy resource, such as: tide energy, wave energy, sea
Stream can wait.Wherein, wave energy is small by time restriction, and energy-flux density is big, and distribution area is extensive, has in ocean energy exploitation important
Status.For the marine industries construction area in coastal waters, consumption energy is huge, but the most distance of conventional energy resource is farther out, because
This wave energy has great superiority in coastal power supply this respect.The mode of traditional collection wave energy is to utilize large-scale wave
Wave can acquire the kinetic energy and potential energy that equipment collects wave, be converted into the mechanical energy of capture, then pass through mechanical energy conversion system
Mechanical energy is passed into generator with electricity generation system and is converted to electric energy.Wave-energy power generation, intermediate link are utilized using such mode
More, installation is complicated, and driving is difficult.
Recently, it is based on triboelectrification, the spherical generator of electrostatic induction has been developed that solution problem above.It is small-sized
Spherical generator in ocean scenes simple installation, manufacturing process is succinct, and the cost of material is low, low frequency wave energy acquisition capacity
By force, there is biggish application prospect.
After searching and discovering the prior art, in Patent No. " 103840700 A of CN ", a kind of entitled " multilayer Gao Gong
A kind of spherical generator based on friction nanometer generating is reported in the subsphaeroidal nano friction generator of rate and its application " patent,
The multi-surface contact sphere of generator can carry out triboelectricity in three-dimensional space, but the reason of because of structure and electricity generation material,
Sphere is in three-dimensional space point contact with the way of contact of shell, and the energy that can not effectively generate to all directions has
The utilization of effect.Ping Cheng et al. exists " Largely enhanced triboelectric nanogenerator for
efficient harvesting of water wave energy by soft contacted structure."(Nano
Energy 57:432-439) (Chinese topic: " the efficient soft contact-type frictional nano generator towards wave energy " International Periodicals:
The nanometer energy) a kind of friction nanometer power generator coupled based on triboelectrification and electrostatic induction is reported in article, pass through silicon rubber
Sliding friction between glueballs and contact copper electrode generates triboelectric effect, brings positive and negative charge at two positions and then generates electricity
Can, but the silicone rubber ball of structure can only generate triboelectric effect, silicone rubber ball and shell on a direction in space in text
Inner wall contact area is smaller, and the ability for collecting electric energy is limited, is only able to achieve lighting in real time for LED.
Summary of the invention
Technical problems to be solved:
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of spherical electret wave energy generating set, when
Spherical electret wave energy generating set is utilized interior nucleome and the phase in outer spherical shell generation space by external low frequency wave stroke
To displacement, three-dimensional electric energy capturing unit generates lasting output voltage, converts mechanical energy into electric energy.List designed by the present invention
The instantaneous ceiling voltage that a spherical shape electret wave energy generating set generates can reach several hundred volts, and power can reach tens of millis
Watt, sensor power supply can be powered or is stored as in real time for LED array.
The technical scheme is that a kind of spherical shape electret wave energy generating set, it is characterised in that: including shell
Body, interior nucleome, three-dimensional electric energy capturing unit and internal circuit;The outer housing is hollow sphere structure, and the interior nucleome is
The interior nucleome is placed in the outer housing by solid sphere, and passes through multiple three-dimensional electric energy capturing unit connections;Multiple institutes
Within stating three-dimensional electric energy capturing unit spatially centered on nucleome radially, one end is bonded in the kernel external surface,
The other end is bonded in the outer housing inner surface;
The three-dimensional electric energy capturing unit is that cross folding is formed repeatedly by the flexible electrode of two rectangular slat structures
Three-dimensional elastic structure, wherein one is hearth electrode, another is to electrode;
The interior core diameter is D1, outer housing inner diameter is D2;The three-dimensional most short reduction length of electric energy capturing unit is
L1, longest spread length is L2;Each following formula of size relationship:
(L1+L2+D1)/3<D2<L1+L2+D1;
The internal circuit includes several rectifiers and several conducting wires, and conducting wire is used for connecting components;Each three-dimensional
The output end of electric energy capturing unit is all connected with a rectifier;The positive and negative anodes of each rectifier be sequentially connected in series to be formed total output just,
Cathode, total positive and negative electrode that exports pass through the through-hole and external connection that conducting wire is arranged on the outer housing respectively;Across described outer
Do encapsulation process in gap between the conducting wire and through-hole of shell.
A further technical solution of the present invention is: the hearth electrode is plating copper foil/polyimides/plating copper foil three
Layer composite construction is that copper foil, polyimides and plating copper foil will be electroplated to pass through sandwich structure made of industry calendering;Institute
Stating to electrode is electret/plating copper foil/polyimides/plating copper foil/five layers of electret composite construction, is at the bottom
On the basis of electrode three-layer composite structure, electret film is covered to the composite junction of its both side surface formation by chemistry
Structure.
A further technical solution of the present invention is: the hearth electrode and being processed as to the plating copper foil of the bending part of electrode
Multiple parallel strips, so that the junction in three dimensional folded structure between adjacent electro-coppering laminae plane linearly connects to be multiple
It connects, guarantees that its folding property, the width of each strip are 1 to 2mm.
A further technical solution of the present invention is: the interior nucleome is by one of silicic acid gel, rubber, ABS plastic
Or entity structure made of multiple material, it can be in the three-dimensional space motion in the shell body shell.
A further technical solution of the present invention is: the outer housing is the hollow shell being sticked to form by two half shells,
It is prepared using one of polyethylene, polystyrene, polymethyl methacrylate or multiple material.
A further technical solution of the present invention is: the electret film uses Parylene Parylene, Teflon
Teflon or silica are prepared.
A kind of spherical shape electret power generation network, it is characterised in that: by multiple spherical electret wave energy generating sets
By being connected in series or in parallel, electric energy can be input to accumulator or be directly used.
Beneficial effect
The beneficial effects of the present invention are:
A kind of spherical electret wave energy generating set proposed by the present invention, including three-dimensional electric energy capturing unit, interior nucleome,
Outer housing and internal circuit;Three-dimensional electric energy capturing unit is folded by hearth electrode and to electrode by crossed space;Hearth electrode
It is combined by industry calendering, electrode is made of the foil electret of three-layer composite structure and two sides.Through sphere three in shell
Movement in dimension space drives each electric energy capturing unit to be deformed, and then influences distribution of charges and generate output voltage.This hair
Bright spherical shape electret wave energy generating set has easy for installation, and size is smaller and adjustable, and internal electrification structure elasticity preferably, can
The features such as wave energy of collection multiple directions, generating efficiency is high.It invention can be widely used in collecting low frequency wave energy, export great number
The electric energy capturing unit of voltage, the multiple directions being covered in shell further improves the collection efficiency of wave energy, industrial power supply,
Life power supply, waters sensor monitoring self-powered and sea area Portable power self-supplying equipment aspect have great application prospect.
Compared with prior art, spherical electret wave energy generating set of the invention has several advantages that
1. the three-dimensional electric energy that the viscous of spherical shape electret wave energy generating set of the present invention has different directions
Capturing unit, when sphere is by wave stroke, interior nucleome and outer housing generate relative displacement, can drive three-dimensional electricity all in space
Energy capturing unit generates different degrees of telescopic variation, and then the output voltage of great number is generated by electrostatic induction;Multiple directions
After the output voltage of three-dimensional electric energy capturing unit is superimposed through over commutation, total output voltage with great number, energy capture efficiency
It is high.
2. spherical shape electret wave energy generating set small volume of the present invention, structure are easy to make, light quality,
Water surface can be floated on naturally, using the conversion of water surface wave fluctuating driving device scrolling realization wave energy to electric energy, solved
The problem of traditional big kohoona energy power generator is difficult to install, and structure is complicated.
3. occupied space of the present invention is smaller, cost is relatively low, and energy capture efficiency with higher, may act as sea area electronics
The power supply device of equipment realizes self-powered.Under lower frequency external exciting test, the single function that generates electricity generates the electricity of 300V or so
Pressure, the power of 20mW or so can directly light LED array in real time, or be supplied by super capacitor energy-storage for temperature sensor
Electricity at sea has broad application prospects in terms of sensing network self-powered.
4. the hearth electrode is processed as multiple parallel strips with the plating copper foil of the bending part to electrode by the present invention,
So that the junction in three dimensional folded structure between adjacent electro-coppering laminae plane is multiple linearly connecteds, each strip
Width is 1 to 2mm, can guarantee the toughness at its folding, improve intensity, be not easily broken.
5. each size relationship sets (L according to formula in the present invention1+L2+D1)/3<D2<L1+L2+D1, can guarantee to realize electricity
The maximization of energy capture rate, works as D1When less than minimum limit value, electric energy capturing unit is unable to reach best folding shortening state;
Work as D1When greater than maximum limit value, electric energy capturing unit can not cmpletely vibrate, and influence generating efficiency.
Detailed description of the invention
Fig. 1: for the apparatus structure schematic diagram of spherical electret wave energy generating set embodiment 1 of the invention;
Fig. 2: for the three-dimensional electric energy capturing unit structural representation of spherical electret wave energy generating set embodiment 1 of the invention
Figure;
Fig. 3: for the bottom electrode structural schematic diagram of spherical electret wave energy generating set embodiment 1 of the invention;
Fig. 4: being spherical electret wave energy generating set embodiment 1 of the invention to electrode structure schematic diagram;
Fig. 5: for the internal circuit diagram of spherical electret wave energy generating set embodiment 1 of the invention;
Fig. 6: for the plant bulk relation schematic diagram of spherical electret wave energy generating set embodiment 1 of the invention;
Fig. 7: for the power generation schematic diagram in spherical electret wave energy generating set embodiment 1 of the invention;
Description of symbols: nucleome in 1.;2. outer housing;3. three-dimensional electric energy capturing unit;4. through-hole;5. hearth electrode;6.
To electrode.
Specific embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to be used to explain the present invention, and cannot understand
For limitation of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
Spherical electret wave energy generating set of the invention connects interior nucleome 1 by several three-dimensional electric energy capturing units 3
The spherical structure that is formed with outer spherical shell 2, three-dimensional electric energy capturing unit 3 include rectangular slat structure hearth electrode 5 and to electrode 6,
Hearth electrode 5 be plating copper foil/polyimides/plating copper foil three-layer composite structure, be will be electroplated copper foil, polyimides and
Copper foil is electroplated and passes through sandwich structure made of industry calendering;It is electret/plating copper foil/polyimides/electricity to electrode 6
Five layers of composite construction of copper foil/electret are plated, are to lead to electret film on the basis of the hearth electrode three-layer composite structure
Cross the composite construction that chemistry covers the formation of its both side surface;Wherein electret film uses Parylene Parylene, spy
Fluorine dragon Teflon or silica are prepared, and are that electret film fills preset charge with by corona polarizing, it is inclined to form surface
Set voltage.
Hearth electrode 5 is processed as multiple parallel strips with the plating copper foil of the bending part to electrode 6, so that three dimensional fold
Junction in structure between adjacent electro-coppering laminae plane is multiple linearly connecteds, guarantees its folding property, each strip
Width be 1 to 2mm.
The output end of each three-dimensional electric energy capturing unit 3 is all connected with a rectifier;The positive and negative anodes of each rectifier are successively
Series connection forms total output positive and negative electrode, and total positive and negative electrode that exports passes through through-hole that conducting wire is arranged on the outer housing and outer respectively
Portion's connection;Gap seals material across the conducting wire of the outer housing and through-hole is filled.
When spherical electret wave energy generating set is by external wave stroke, interior nucleome and outer housing generate opposite fortune
Dynamic, the electrode in three-dimensional electric energy capturing unit generates relative displacement, and unit electrode is in contact, in external low frequency wave wave
It acts on lower electrode and generates reciprocating motion, persistently export electric energy.Its working principle is that electrostatic induction acts on: when external low frequency wave is made
When compressing at several three-dimensional electric energy capturing units inside spherical electret wave energy generating set, dielectric layer gap becomes
Small, due to electrostatic induction, hearth electrode can generate the charge opposite with preset charge;When three-dimensional electric energy capturing unit generates stretching
When, dielectric layer gap becomes larger, and hearth electrode charge flows away again, to convert electric energy, the alternating current warp of generation for mechanical energy
It crosses internal circuit and outside is supplied to by output end.
Specific embodiment:
Spherical shape electret wave energy generating set is by three-dimensional electric energy capturing unit, by interior nucleome 1, shell as shown in Figure 1
Body 2, three-dimensional electric energy capturing unit 3 form.The end face of three-dimensional 3 two end electrodes of electric energy capturing unit respectively with interior 1 outer wall of nucleome and
2 inner wall of outer housing is bonded by sticker, is spatially radially divided centered on nucleome within several electric energy capturing units 3
Cloth.
The interior nucleome 1 has preferable elasticity, can in entire outer housing 2 three-dimensional space motion, can be by silicic acid
The entity that gel, rubber, ABS plastic etc. are prepared;The hollow thin spherical shell that outer housing 2 is sticked to form by two hemispherical Shells, shell
There are output ends and the external through-hole 4 being attached for body, can use the materials such as polyethylene, polystyrene, polymethyl methacrylate
Material is prepared.
By hearth electrode and to electrode, cross folding forms three-dimensional electric energy capturing unit 3 in space as shown in Figure 2.Hearth electrode
5 and to the previously prepared rectangular strip of electrode 6, length can be adjusted as needed.Every hearth electrode and to electrode bend
Plating copper foil at structure is handled by industrial processes, is processed to several independent rectangle slice thin slices, and to guarantee knot
Structure folding property, single sheet width are machined to 1 to 2mm.Will be Chong Die with 5 one end of hearth electrode to electrode 6, cross folding repeatedly.When
After the completion of folding, it is connect from hearth electrode 5 with to 6 end face of electrode difference extraction wire with internal circuit.The foldable structure can be
A variety of three dimensional folded structures such as scheme (a) and show foldable structure I, and figure (b) show foldable structure II.
As shown in figure 3, the hearth electrode 5 is by plated copper layer, polyimides and plated copper layer three-decker
Stacking calendering is prepared.The plated copper layer of two sides is used as conductive electrode, and the polyimides at middle part is used to improve whole
The foldability and service life of a electrode.
As shown in figure 4, described is by electret film layer, plated copper layer, polyimides, electro-coppering gold to electrode 6
Belong to layer and electret film layer stackup is prepared, plated copper layer, polyimides and plated copper layer composition therein
Three-decker by industry calendering be prepared.The electret film can use Parylene Parylene, Teflon
One of Teflon or silica or a variety of are prepared, and electret film can be covered on three layers by bonding agents such as resins
Structure two sides.
The electrode charge is will to be placed on ceramic heating plate to electrode, emitted by way of corona polarizing high speed from
Son is injected into electret film, realizes that electric charge is implanted into advance.
It is illustrated in figure 5 internal circuit diagram of the present invention.Three-dimensional electric energy capturing unit 3 generates alternating current when generating electricity, several
Two conducting wires of three-dimensional electric energy capturing unit 3 drawn to electrode and hearth electrode connect with the ac input end of corresponding rectifier
It connects, wherein the output end of rectifier is sequentially connected in series, and is finally exported electric energy outward and store or be directly used, avoids
Electric energy loss caused by the phase difference that 3 D captured unit output voltage has.
It is illustrated in figure 6 apparatus of the present invention dimensional drawing.During the preparation process, interior core diameter is D1, outer housing inner wall is straight
Diameter is D2, electric energy capturing unit minimum compressed length is L1, 3 longest spread length of electric energy capturing unit is L2.When electric energy captures list
When member 3 moves to most short reduction length, charge inducing amount is maximum.For the generating capacity for giving full play to each electric energy capturing unit 3,
And guaranteeing preferable locomitivity, each major part size need to meet following inequality relation: (L1+L2+D1)/3<D2<L1+L2+
D1.When D_1 is less than minimum limit value, electric energy capturing unit is unable to reach best folding shortening state;When D_1 is greater than maximum limit
When definite value, electric energy capturing unit can not be completely stretched abundant vibration, influence generating efficiency.
It is illustrated in figure 7 present invention power generation schematic diagram.Have in shown spherical shape electret wave energy generating set several three
Electric energy capturing unit 3 is tieed up, three-dimensional electric energy capturing unit 3 provides bias voltage to having preset charge in electrode.When external wave
When impacting spherical electret wave energy generating set, interior spheroid and outer spherical shell generate relative displacement, and drive bonds several therewith
A three-dimensional electric energy capturing unit generates deformation, causes to change to the dielectric layer gap between electrode 6 and hearth electrode 5.When
When three-dimensional electric energy capturing unit 3 is compressed, dielectric layer gap becomes smaller, to having pre-charge on electrode electret film, due to
Electrostatic induction can generate charge inducing on hearth electrode 5;When three-dimensional electric energy capturing unit 3 is stretched, dielectric layer gap becomes
Small, 5 charge inducing flows away on hearth electrode.Under the constant impingement of external wave, three-dimensional electric energy capturing unit 3, which generates, to be continued
Ac output voltage, by being converted to direct current after internal circuit, from output end be output to outside carry out storage or directly plus
To utilize, the lasting conversion of wave energy to electric energy is realized.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.