CN109617448A - A kind of frictional energy collector and preparation method thereof - Google Patents
A kind of frictional energy collector and preparation method thereof Download PDFInfo
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- CN109617448A CN109617448A CN201811324657.8A CN201811324657A CN109617448A CN 109617448 A CN109617448 A CN 109617448A CN 201811324657 A CN201811324657 A CN 201811324657A CN 109617448 A CN109617448 A CN 109617448A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
Abstract
The invention discloses a kind of frictional energy collector and preparation method thereof, including power generator and cantilever beam structure, electric installation includes the first supporting layer, the first frictional layer, the second frictional layer and the second supporting layer, and cantilever beam structure includes hold-down support and free end.The present invention is characterized by provided with power generator and cantilever beam structure, and power generator is made of components such as supporting layer and frictional layers, and structure is simple, and light quality is easy to make, and can be mass, and have higher energy conversion efficiency.Device miniaturization, integrated, raising and the output performance for improving Minitype energy collector.Electric energy is converted by mechanical movement by various ways such as beating, vibration, frictions.
Description
Technical field
The present invention relates to energy acquisition fields more particularly to a kind of frictional energy collector and preparation method thereof.
Background technique
Due to increasingly consuming for non-renewable energy resources and becoming increasingly conspicuous for environmental problem, the exploitation and research of green novel energy source
New trend will be become.Triboelectrification effect is the effect that people few in number have been known for thousands of years, this effect
It is the phenomenon that we will undergo daily, can be used to mechanical energy is converted into electric energy, i.e. triboelectricity.It is new as one
Research field can efficiently be collected and the energy in storage condition, Lai Shixian micro-nano system using new technology and micro Nano material
Sustainable operating.
Frictional energy acquisition, acquires the relative friction in environment, and friction energy widely exists, and unlike luminous energy, thermal energy
It is limited Deng by natural conditions, so the friction energy in environment to be directly changed into the electric energy that can stablize output with wide
Application prospect.
Existing frictional energy is collected, the stage started to walk also in one.Although having centainly in every field
Be related to, but cannot all be widely used, because the energy collected is stable not enough.But since it has a wide range of applications
Prospect contributes the great development for pushing every field to Mirae Corp..The place needed to be improved now has following several
A aspect:
1, TENG output energy need to further increase, and export with material, structure, rubbing surface contact layer
There is very big relationship, so in the selection of friction material, the design of structure, the modification of surface micro-nano structure,
Output is improved on the problem of separateing the several respects such as more abundant.
2, the size of friction nanometer power generator cannot be too big, and weight is also as light as possible, therefore structure will be continued to optimize, and
And its stability should be improved.
3, frictional energy collector complex process, manufacturing cost are expensive, operation difficulty is big, long preparation period, are difficult to advise greatly
Mould production, these factors constrain the industrialization of such methods.
So how to design a kind of frictional energy collector and preparation method thereof, improve that output, structure is simple, performance is good
Well, convenient manufacturing process, its stability is improved.It is industry urgent problem to be solved.
Summary of the invention
The present invention proposes a kind of frictional energy collector, including cantilever beam to solve the above-mentioned deficiency of the prior art
Structure and the power generator being arranged on cantilever beam structure, the cantilever beam structure include hold-down support and are arranged in hold-down support
The free end of the overhanging arm of side, it is characterised in that: the power generator is set to the lower part of free end, which includes
Surface Mount is fixed on the first supporting layer of free end lower surface, and the lower surface Surface Mount of first supporting layer has the first frictional layer,
The second frictional layer corresponding with first frictional layer is provided with below first frictional layer, the lower surface of second frictional layer is solid
It is scheduled on the second supporting layer, second supporting layer is mounted on preset energy acquisition position；Wherein, the first frictional layer and second
There is certain friction gap, and the first frictional layer is made of negative electrode material between frictional layer, second frictional layer uses
The metal material that can be used as anode is made, and first frictional layer along with free end and moving freely constantly with described the
Two frictional layers generate dynamic friction, so that the first frictional layer and the second frictional layer be allowed to form the transfer of charge, and then allow the first friction
Electric current is generated between layer and the second frictional layer.
Preferably, first frictional layer is bonded and fixed on first supporting layer by conductive silver glue, and described second
Frictional layer is bonded and fixed on second supporting layer by conductive silver glue.
Preferably, first frictional layer is made of PDMS membrane material, and first frictional layer
Small lugs are distributed in uniform array on rubbing surface.
Preferably, the small lugs and first frictional layer injection molding are integral.
Preferably, second frictional layer uses sheet metal, metal alloy film, metal oxide piece or patterned metal
Line high polymer layer stack.
Preferably, the first supporting layer and the second supporting layer all use glass plate, and first frictional layer and the second friction
The edge of layer all connects thin wire with conductive silver glue.
Preferably, the thickness of first supporting layer and the second supporting layer is all 1cm.
Preferably, the hold-down support (101) is with a thickness of 3.5cm, and free end is with a thickness of 0.8cm, first frictional layer
With a thickness of 500 μm~800 μm, second frictional layer with a thickness of 400nm.
The invention also provides a kind of preparation methods for making frictional energy collector, comprising the following steps:
Step S101 is chosen silicon wafer, is cut on silicon wafer using laser cutting device having a size of 100 μ m, 100 μm of sizes
Concave block shape, concave block shape with a thickness of 15~100 microns；
Step S102 chooses polydimethyl siloxane material, is added into curing agent, is put into vacuumize after being sufficiently stirred and sets
In standby, vacuumize until bubble completely disappears；
Step S103 first applies one layer of demoulding under yellow light environment in step s101 in the small concave block of the silicon wafer of well cutting shape
Agent；
Step S104, using adjustable coating device by pdms mixed liquor scratch concave block in shape, be placed among whirl coating platform, carry out
Whirl coating spin coating；
The good dimethyl silicone polymer solution of spin coating is put into baking oven and toasted by step S105.
Step S106 takes out cooled to room temperature, carefully uses tweezers after the drying solidification of dimethyl silicone polymer solution
It removes and obtains the PDMS membrane with convex block, and then the first frictional layer is made；
Step S107, selects sheet glass as the second supporting layer, uses magnetron sputter sputtered aluminum on the glass sheet to sheet glass
Electrode, aluminium electrode is as the second frictional layer.
Step S108 prints cantilever beam structure using 3d printer, and cantilever beam structure includes hold-down support and free end；
Step S109 selects sheet glass as the first supporting layer, the free end of cantilever beam structure and the first supporting layer is sticked in
Together, it is stained with the first frictional layer in the first supporting layer lower surface, and coats conductive silver glue wherein and connects thin wire, for connecting
The second frictional layer or external circuits of frictional energy collector.
Step S110 places the glass plate for having plated aluminium electrode at the parallel lower end 3mm of the first frictional layer of distance, and
Thin wire is connected with conductive silver glue at edge, for connecting the second electrode lay or external circuits of frictional energy collector.
Further, in the step S107, the aluminium electrode as the second frictional layer uses 3M VHB strength glue
It tears and opens afterwards, aluminium electrode is allowed to form rough surface.
Further, in step S108, the material of 3d printing and making cantilever beam structure is preferable using elasticity, plasticity
ABS material.
Further, in step s105, the baking temperature of baking oven is set as 100 DEG C.
In addition, the adoptable material of the first frictional layer of the invention is not limited solely to PDMS membrane material
Material, can also using using in following material any one or it is a variety of: it is dimethyl silicone polymer, polyethylene, polypropylene, poly-
Vinylidene, vinylidene chloride-acrylonitrile copolymer, polytetrafluoroethylene (PTFE), polyvinyl chloride, fluorinated ethylene propylene copolymer, poly- trifluoro chlorine
Ethylene, polychlorobutadiene, polyimides, aniline-formaldehyde resin, polyformaldehyde, ethyl cellulose, polyamide, melamino-formaldehyde,
Polycarbonate, polyethylene glycol succinate, phenolic resin, neoprene, cellulose, natural rubber, ethyl cellulose, cellulose
Acetic acid esters, polyethylene glycol adipate, polydiallyl phthalate, staple fibre, polyethanol butyral, fiber sponge,
Polyurethane elastomer, styrene-acrylonitrile copolymer copolymer, styrene-butadiene-copolymer, the third diphenol of polyethylene carbonate, staple fibre,
Polystyrene, polymethacrylates, polyvinyl alcohol, polyvinyl alcohol, polyester, polyisobutene, polyurethane flexible sponge, poly bis benzene
Phenol carbonic ester, polyether, polyethylene terephthalate, polymeric liquid crystal copolymer and Parylene.
When making the first frictional layer, if using PDMS membrane material, it need to be in polydimethylsiloxanes
Curing agent is added in alkane, and its ratio be 10:1, small lugs use laser cutting silicon wafer as template, and before film, and one layer of spin coating de-
Mould agent, in this way when the PDMS membrane of the first frictional layer is placed in the concave block shape of silicon wafer, so that it may on surface
Forming small lugs in this way can after the first frictional layer forms small lugs due to having been spun on one layer of release agent before film forming
To be directly detached from out of template.
Second frictional layer is both frictional layer and electrode layer, material selection metal, alloy, metal oxide, or graphical
Metal wire-high polymer layer stack, wherein metal include Au Ag Pt Pd, aluminium, nickel, copper, titanium, chromium, selenium, iron, manganese, molybdenum,
Tungsten or vanadium, alloy include aluminium alloy, titanium alloy, magnesium alloy, beryllium alloy, copper alloy, kirsite, manganese alloy, nickel alloy, lead conjunction
Gold, tin alloy, cadmium alloy, bismuth alloy, indium alloy, gallium alloy, tungsten alloy, molybdenum alloy, niobium alloy or tantalum alloy.
Free end, the first supporting layer, electrode layer, the first frictional layer, air layer, the second frictional layer, the second supporting layer are along thick
Degree direction is arranged successively.The friction electrode sequence of the material of both first frictional layer and the second frictional layer is different, opposite to be placed in parallel.
It is glass that first supporting layer and the second supporting layer, which are all made of material,.
The arm girder construction device is printed using 3D printer, hold-down support and free end integration, and with elastic
And plastic material, the hold-down support support is with a thickness of 0.5cm, and free end is with a thickness of 10 μm, first supporting layer and second
Supporting layer thickness is 10 μm, electrode layer 400nm, and the first frictional layer and the second friction layer thickness are 500 μm~800 μm.
Designing points of the invention are that power generator is by supporting layer and friction provided with power generator and cantilever beam structure
The components such as layer are constituted, and structure is simple, and light quality is easy to make, and can be mass, and have higher energy conversion efficiency.
Device miniaturization, integrated, raising and the output performance for improving Minitype energy collector.It is a variety of by beating, vibration, friction etc.
Mechanical movement is converted electric energy by mode.
Compared with prior art, it is simple that the invention reside in structures, and light quality is easy to make, and can be mass, and have
Higher energy conversion efficiency.Device miniaturization, integrated, raising and the output performance for improving Minitype energy collector.Pass through
Mechanical movement is converted electric energy by the various ways such as beating, vibration, friction.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is cantilever beam structure schematic diagram of the invention；
Fig. 3 is laser cutting silicon wafer structural schematic diagram of the invention；
Fig. 4 is the PDMS membrane structural schematic diagram of invention.
Specific embodiment
Invention is described in detail with reference to the accompanying drawings and examples.
As shown in Figures 1 to 4, the invention proposes a kind of frictional energy collectors, including cantilever beam structure 1 and setting are outstanding
Power generator in arm girder construction, cantilever beam structure include hold-down support 101 and the overhanging arm that hold-down support side is arranged in
Free end 102, power generator be set to free end 102 lower part, which includes that Surface Mount is fixed on free end lower surface
The first supporting layer 2, the lower surface Surface Mount of the first supporting layer has the first frictional layer 3, be provided with below the first frictional layer and
Corresponding second frictional layer 5 of first frictional layer, the lower surface of the second frictional layer are fixed on the second supporting layer 4, the second support
Layer is mounted on preset energy acquisition position；Wherein, there is certain friction gap between the first frictional layer and the second frictional layer,
And first frictional layer be made of negative electrode material, second frictional layer is made of the metal material that can be used as anode, described
First frictional layer constantly generates dynamic friction with second frictional layer and moving freely along with free end, to allow first
Frictional layer and the second frictional layer form the transfer of charge, and then allow between the first frictional layer and the second frictional layer and generate electric current.
First frictional layer is bonded and fixed on first supporting layer 2 by conductive silver glue, and second frictional layer passes through
Conductive silver glue is bonded and fixed on second supporting layer 4.
First frictional layer 3 is made of PDMS membrane material, and on the rubbing surface of first frictional layer 3
Even array distribution has small lugs 301.Small lugs 301 and the first frictional layer 3 are molded integrally.Second frictional layer using sheet metal,
Metal alloy film, metal oxide piece or patterned metal line high polymer layer stack.First supporting layer and the second support
Layer all uses glass plate, and the edge of first frictional layer and the second frictional layer all connects thin wire with conductive silver glue.First
The thickness of supporting layer and the second supporting layer is all 1cm.For hold-down support 101 with a thickness of 3.5cm, free end is described with a thickness of 0.8cm
First frictional layer with a thickness of 500 μm~800 μm, second frictional layer with a thickness of 400nm.
First frictional layer use polydimethyl siloxane material, with a thickness of 500 μm~800 μm, and surface have with a thickness of
15 μm~100 μm of small lugs 302, as shown in Figure 4.The formation of the PDMS membrane of first frictional layer, need to be
Curing agent is added in dimethyl silicone polymer, and its ratio be 10:1.The small lugs 302 of the dimethyl silicone polymer surface are using sharp
Light cuts silicon wafer 6 and is used as template, as shown in figure 3, before dimethyl silicone polymer film forming, one layer of release agent of spin coating.Described
Two frictional layers 5 are both frictional layer and electrode layer, using aluminum metal, are prepared by magnetically controlled sputter method, and use 3M VHB
It tears and opens after strength glue, form rough surface.The frictional energy collector through-thickness, is arranged successively are as follows: cantilever
Beam free end 102, supporting layer 2, conductive silver glue, the first frictional layer 3, air layer, the second frictional layer 5, supporting layer 4.First friction
Layer 3 is different with the friction electrode sequence of the material of both the second frictional layers 5, opposite to be placed in parallel.In the frictional energy collector
Two at supporting layer be all made of material be glass.Cantilever beam structure device 1 in the frictional energy collector uses Thinker three
Dimension 3D printer prints, 102 integration of hold-down support 101 and free end, material selection elasticity, the preferable ABS material of plasticity
Material, as shown in Figure 2.Cantilever beam hold-down support 101 in the frictional energy collector with a thickness of 3.5cm, free end with a thickness of
0.8cm, supporting layer are 500 μm~800 μm with a thickness of 1cm, electrode layer 400nm, friction layer thickness.
First frictional layer provided by the invention uses polydimethyl siloxane material, with a thickness of 500 μm~800 μm, and table
The small lugs 302 that face has with a thickness of 15 μm~100 μm, the formation of the PDMS membrane of the first frictional layer need to be poly-
Curing agent is added in dimethyl siloxane, and its ratio be 10:1.The small lugs 302 of dimethyl silicone polymer surface are using laser cutting
Silicon wafer 6 is used as template, as shown in figure 3, before dimethyl silicone polymer film forming, one layer of release agent of spin coating.Second frictional layer 5 was both
Be frictional layer it is electrode layer again, using metal material, is prepared by magnetically controlled sputter method, and uses 3M VHB strength glue
It tears and opens afterwards, form rough surface.The frictional energy collector through-thickness, is arranged successively are as follows: cantilever beam free end
102, supporting layer 2, conductive silver glue, the first frictional layer 3, air layer, the second frictional layer 5, supporting layer 4.First frictional layer 3 and second
The friction electrode sequence of the material of both frictional layers 5 is different, opposite to be placed in parallel.In the frictional energy collector two at support
It is glass that layer, which is all made of material,.Cantilever beam structure device 1 in the frictional energy collector uses Thinker's three-dimensional 3D printer
It prints, 102 integration of hold-down support 101 and free end, material selection elasticity, the preferable ABS material of plasticity, frictional energy
Cantilever beam hold-down support 101 in collector is with a thickness of 3.5cm, and free end is with a thickness of 0.8cm, and supporting layer is with a thickness of 1cm, electrode
Layer is 400nm, and friction layer thickness is 500 μm~800 μm.
In addition present example additionally provides any one the frictional energy collector provided in a kind of above-described embodiment
Preparation method, the preparation method include:
Dimethyl silicone polymer is added in curing agent step S102, and ratio 10:1 is put into pumping after being sufficiently stirred
In vacuum equipment, until bubble completely disappears.
Step S103 first applies one layer of release agent on the silicon wafer of well cutting shape in step s101 under yellow light environment.
Pdms mixed liquor is scratched on silicon wafer using adjustable coating device, is placed among whirl coating platform, is arranged by step S104
Speed is 650r/min, and the time is that 60s carries out whirl coating spin coating.
The good dimethyl silicone polymer solution of spin coating is put into baking oven by step S105, and temperature setting is 100 DEG C, and the time is
2h。
Step S106 takes out cooled to room temperature, carefully uses tweezers after the drying solidification of dimethyl silicone polymer solution
It removes and obtains the PDMS membrane with convex block 302, be the first frictional layer 3, as shown in Figure 4.
Step S107 selects one block of sheet glass with a thickness of 1cm having a size of 2cm × 2cm, using magnetron sputter in glass
On piece sputters aluminium electrode, 1.5h is sputtered, with a thickness of 400nm.
Step S108 is torn and is opened after the aluminium electrode using the sputtering of 3M VHB strength glue S107 step, forms coarse table
Face.
Step S109 draws the three-dimensional figure of cantilever beam device on three-dimensional software ug or SolidWorks, wraps as shown in Figure 2
Hold-down support 101 and free end 102 are included, as shown in Figure 2.
Step S110, after print studio software slicing treatment, access Thinker's three-dimensional CR-2020 intelligence 3d printing
In machine, using elasticity, the preferable ABS material of plasticity, printing 10min be can be completed.
The free end 102 of cantilever beam and supporting layer 2 are sticked together by step S111, are stained in 2 lower surface of supporting layer poly-
Dimethyl siloxane film 3, and coat conductive silver glue wherein and connect thin wire, for connecting the second electricity of frictional energy collector
Pole layer 5 or external circuits.
Step S112 places the glass plate for having plated aluminium electrode at the parallel lower end 3mm of the first frictional layer of distance, and
Thin wire is connected with conductive silver glue at edge, for connecting the second electrode lay or external circuits of frictional energy collector.
Only several embodiments of the present invention are expressed for above-described embodiment, and the description thereof is more specific and detailed, but can not
Therefore understands that being limitations on the scope of the patent of the present invention.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Therefore, the invention patent and protection scope should be subject to the appended claims.
Claims (12)
1. a kind of frictional energy collector, described including power generator cantilever beam structure (1) and be arranged on cantilever beam structure
Cantilever beam structure include hold-down support (101) and be arranged in hold-down support side overhanging arm free end (102), feature
Be: the power generator is set to the lower part of free end (102), which includes that Surface Mount is fixed on free end lower surface
First supporting layer (2), the lower surface Surface Mount of first supporting layer have the first frictional layer (3), set below the first frictional layer
It is equipped with the second frictional layer (5) corresponding with first frictional layer, the lower surface of second frictional layer is fixed on the second supporting layer
(4) on, second supporting layer is mounted on preset energy acquisition position；Wherein, between the first frictional layer and the second frictional layer
With certain friction gap, and the first frictional layer is made of negative electrode material, and second frictional layer, which uses, can be used as anode
Metal material be made, first frictional layer and being moved freely along with free end constantly with second frictional layer produce
Lively friction so that the first frictional layer and the second frictional layer be allowed to form the transfer of charge, and then allows the first frictional layer and second to rub
It wipes and generates electric current between layer.
2. frictional energy collector as described in claim 1, it is characterised in that: first frictional layer passes through conductive silver gluing
Knot is fixed on first supporting layer (2), and second frictional layer is bonded and fixed at second support by conductive silver glue
On layer (4).
3. frictional energy collector as described in claim 1, it is characterised in that: first frictional layer (3) uses poly- diformazan
Radical siloxane film property material is made, and small lugs (301) are distributed in uniform array on the rubbing surface of first frictional layer (3).
4. frictional energy collector as claimed in claim 3, it is characterised in that: the small lugs (301) are rubbed with described first
It is integral to wipe layer (3) injection molding.
5. frictional energy collector as described in claim 1, it is characterised in that: second frictional layer uses sheet metal, gold
Belong to alloy sheet, metal oxide piece or patterned metal line high polymer layer stack.
6. frictional energy collector as described in claim 1, it is characterised in that: the first supporting layer and the second supporting layer all use
Glass plate, and the edge of first frictional layer and the second frictional layer all connects thin wire with conductive silver glue.
7. frictional energy collector as claimed in claim 6, it is characterised in that: first supporting layer and the second supporting layer
Thickness is all 1cm.
8. frictional energy collector as described in claim 1, it is characterised in that: the hold-down support (101) with a thickness of
3.5cm, free end with a thickness of 0.8cm, first frictional layer with a thickness of 500 μm~800 μm, the thickness of second frictional layer
Degree is 400nm.
9. a kind of preparation method for making frictional energy collector described in claim 1, which is characterized in that including following step
It is rapid:
Step S101 is chosen silicon wafer, is cut on silicon wafer using laser cutting device having a size of 100 μ m, 100 μm of sizes
Concave block shape, concave block shape with a thickness of 15~100 microns；
Step S102 chooses polydimethyl siloxane material, is added into curing agent, is put into vacuumize after being sufficiently stirred and sets
In standby, vacuumize until bubble completely disappears；
Step S103 first applies one layer of demoulding under yellow light environment in step s101 in the small concave block of the silicon wafer of well cutting shape
Agent；
Step S104, using adjustable coating device by pdms mixed liquor scratch concave block in shape, be placed among whirl coating platform, carry out
Whirl coating spin coating；
The good dimethyl silicone polymer solution of spin coating is put into baking oven and toasted by step S105；
Step S106 takes out cooled to room temperature, is carefully removed with tweezers after the drying solidification of dimethyl silicone polymer solution
The PDMS membrane with convex block is obtained, and then the first frictional layer is made；
Step S107, selects sheet glass as the second supporting layer, uses magnetron sputter sputtered aluminum on the glass sheet to sheet glass
Electrode, aluminium electrode is as the second frictional layer；
Step S108 prints cantilever beam structure using 3d printer, and cantilever beam structure includes hold-down support and free end；
Step S109 selects sheet glass as the first supporting layer, the free end of cantilever beam structure and the first supporting layer is sticked in
Together, it is stained with the first frictional layer in the first supporting layer lower surface, and coats conductive silver glue wherein and connects thin wire, for connecting
The second frictional layer or external circuits of frictional energy collector；
Step S110 places the glass plate for having plated aluminium electrode, and on side at the parallel lower end 3mm of the first frictional layer of distance
Edge connects thin wire with conductive silver glue, for connecting the second electrode lay or external circuits of frictional energy collector.
10. the preparation method of frictional energy collector as claimed in claim 9, it is characterised in that: in the step S107,
Aluminium electrode as the second frictional layer is opened using tearing after 3M VHB strength glue, allows aluminium electrode formation rough surface.
11. the preparation method of frictional energy collector as described in claim 1, it is characterised in that: in step S108,3d is beaten
Printing makees the material of cantilever beam structure using elasticity, the preferable ABS material of plasticity.
12. the preparation method of frictional energy collector as described in claim 1, it is characterised in that: in step s105, baking oven
Baking temperature be set as 100 DEG C.
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| CN114070121A (en) * | 2021-10-15 | 2022-02-18 | 西安理工大学 | Piezoelectric hybrid friction electric energy collecting device based on wind-induced vibration |
| CN114070121B (en) * | 2021-10-15 | 2024-03-01 | 西安理工大学 | Piezoelectric hybrid friction electric energy collection device based on wind-induced vibration |
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