CN107425748A - A kind of layer flexible expandable type friction generator - Google Patents
A kind of layer flexible expandable type friction generator Download PDFInfo
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- CN107425748A CN107425748A CN201710669524.3A CN201710669524A CN107425748A CN 107425748 A CN107425748 A CN 107425748A CN 201710669524 A CN201710669524 A CN 201710669524A CN 107425748 A CN107425748 A CN 107425748A
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- Prior art keywords
- layer
- flexible
- expandable type
- frictional layer
- backup pad
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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 layer flexible expandable type friction generator, belong to friction generator technical field.Technical scheme main points are：A kind of layer flexible expandable type friction generator, assembled by the extension splicing of multiple generator units, each generator unit includes upper backup pad respectively, lower supporting plate, the at least one triboelectricity unit for connecting the flexible Auxiliary support of upper backup pad and lower supporting plate and being arranged between upper backup pad and lower supporting plate, the triboelectricity unit is by the flexible folding substrate that is fixed between upper backup pad and lower supporting plate and is arranged at intervals at the first friction element of flexible folding substrate both sides and the second friction element is formed, the first frictional layer and the second frictional layer contact with each other disengaging movement under external force in flexible folding substrate.The layer flexible expandable type friction generator of the present invention has the advantages of simple in construction, easy to make, cost is cheap and output performance is good and stable.
Description
Technical field
The invention belongs to friction generator technical field, and in particular to a kind of layer flexible expandable type friction generator.
Background technology
Most important energy conversion form is burning in human history, and generally its is less efficient and can bring serious environment
Problem.Therefore how to realize that efficient energy conversion and storage attract the concern of countless researchers.Meanwhile with people
To small-sized, Integrated Electronic demand continuous lifting, miniature self-driven electronic system and portable electric appts are able to fast
Exhibition is hailed, higher level requirement there has also been to the electric power system of electronic equipment.
Triboelectrification and electrostatic induction are two kinds of phenomenons very common in nature, in recent years, using triboelectrification and
The coupling of electrostatic induction, friction generator turn into the focus of whole world research increasingly, and its general principle is to utilize two kinds of friction poles
Property the larger different materials of difference between contact with each other separation or friction produces electric charge, mechanical energy is converted with reference to electrostatic induction
Into electric energy, have structural principle simple and the characteristics of delivery efficiency is high.In order to effectively by the water energy being widely present in nature,
The various informative mechanical energy such as wind energy, human motion is converted into electric energy, and researchers, which have devised, disclosure satisfy that actual need
The friction generator for the different types of structure wanted, and it is successfully applied to self-driven sensor, self-driven electronic system and organic
The fields such as the self-driven degraded of pollutant.
Current existing friction generator is primarily present output stability difference grade low with power density and lacked in actual applications
Fall into, this limits the extensive use of friction generator to a certain extent.
The content of the invention
Present invention solves the technical problem that it there is provided layer flexible expandable type a kind of simple in construction and reasonable in design
Friction generator, for solve existing friction generator conversion efficiency when moving back and forth vibration energy harvesting it is low and to motion
The high technical problem of frequency requirement.
The present invention is to solve above-mentioned technical problem to adopt the following technical scheme that, a kind of layer flexible expandable type triboelectricity
Machine, it is characterised in that by multiple generator units extension splicing assemble, each generator unit respectively include upper backup pad,
Lower supporting plate, connection upper backup pad and lower supporting plate flexible Auxiliary support and be arranged between upper backup pad and lower supporting plate
At least one triboelectricity unit, the triboelectricity unit is by the flexible folding that is fixed between upper backup pad and lower supporting plate
Substrate and the first friction element and the second friction element composition for being arranged at intervals at flexible folding substrate both sides, wherein first rubs
Wipe unit to be made up of the first frictional layer being fixed in flexible folding substrate, the second friction element is by being in turn secured to flexible folding
Metal electrode board and the second frictional layer in stacked substrate are formed, and the first frictional layer is the weak metallic conduction of bound electron ability
Layer, the second frictional layer are the strong non-metallic insulation layer of bound electron ability, the first frictional layer and second in flexible folding substrate
Frictional layer contacts with each other disengaging movement under external force.
Further preferably, the both ends of the flexible folding substrate laminate respectively is fixed on upper backup pad and lower supporting plate
On, flexible folding substrate is respectively equipped with the first friction element or the second friction at the position that laminates of upper backup pad and lower supporting plate
Unit.
Further preferably, the metal conducting layer of multiple first friction elements is in parallel, the metal electricity of multiple second friction elements
Pole plate is in parallel.
Further preferably, the material of first frictional layer be aluminium, copper or arbitrary proportion albronze, the first frictional layer
Thickness be 50 μm of -1mm, the material of the second frictional layer is polytetrafluoroethylene (PTFE), and the thickness of the second frictional layer is 50 μm of -1mm, metal
The material of battery lead plate is aluminium or copper.
Further preferably, second frictional layer carries out electric charge injection pretreatment.
Further preferably, the contact area of first frictional layer and the second frictional layer is equal.
Further preferably, first friction element is by the spongy layer being in turn secured in flexible folding substrate and first
Frictional layer is formed.
Further preferably, the material of the flexible folding substrate and flexible Auxiliary support is that polyimide flex is thin
Film, the thickness of the flexible folding substrate is 50 μm of -1mm.
Further preferably, the upper backup pad and lower supporting plate are acrylic board.
The layer flexible expandable type friction generator that the present invention is designed and made, in raising generator output performance and surely
Qualitative aspect, is innovated and has been improved in terms of following four：
The second frictional layer in second friction element is polymer frictional layer, and electric charge has been carried out under high-tension apparatus
Pre-implant processing, has been obviously improved its output performance；The layer flexible expandable type friction generator is in overall construction design
On, the fold design scheme for increasing effective contact area in limited reciprocating motion space is taken, greatly improves it
Output performance；Can be by the method for addition spongy layer in first friction element so that each frictional layer is when separateing
Uniform force, contact are abundant, improve output performance stability；The layer flexible expandable type friction generator can be realized to send out
Electric motor units carry out three-dimensional extended connection, realize the overall volume and output performance for freely controlling friction generator, meet various
Actual demand.
The present invention layer flexible expandable type friction generator output performance can by triboelectricity unit quantity, hair
The factors such as quantity, reciprocating frequency and each friction effective contact area of interlayer of the splicing of electric motor units formula together decide on.Mesh
Before, the present invention has realized that two generator units are longitudinally superimposed, and reaches 12 frictional layers synchronously contact and the effect separated, most preferably
Output short circuit current and open-circuit voltage are respectively 600 μ A and 900V, and effective contact area of each frictional layer is 30cm2。
The beneficial effects of the invention are as follows：
The present invention layer flexible expandable type friction generator have output power, output current and voltage stability good and
Output performance can be superimposed quantity and friction element quantity according to generator unit and the advantage such as be controlled.In addition, the multilayer is soft
Property expandable type friction generator have the advantages that structural principle is simple, it is simple and wear-resisting durable to make.
The advantage of layer flexible expandable type friction generator provided by the invention is：
1st, the polymer of second frictional layer carries out electric charge pre-implant processing, is obviously improved frictional layer surface charge density,
Compared with the method for frictional layer surface micro-nano structure processing, there is the advantage that method is simple and cost is cheap；
2nd, the layer flexible expandable type friction generator, in order to effectively lift output performance, rolled in structure using multilayer
Stacked designs, and realizes that frictional layer contact area maximizes in limited space；
3rd, spongy layer is added in first friction element, makes each frictional layer uniform force, output performance stabilization；
4th, the layer flexible expandable type triboelectricity function carries out three-dimensional splicing extension with generator unit, and then meets not
With the demand of actual state.
Brief description of the drawings
Fig. 1 is the structural representation of layer flexible expandable type friction generator；
Fig. 2 is the partial enlarged drawing at A in Fig. 1；
Fig. 3 is the structural representation of generator unit in layer flexible expandable type friction generator；
Fig. 4 is that layer flexible expandable type friction generator electric current produces principle schematic；
Fig. 5 is that layer flexible expandable type friction generator voltage produces principle schematic；
Fig. 6 is the short circuit current curve of layer flexible expandable type friction generator；
Fig. 7 is the voltage waveform of layer flexible expandable type friction generator.
In figure：1st, flexible Auxiliary support, 2, lower supporting plate, 3, flexible folding substrate, 4, metal electrode board, 5, second rubs
Wipe layer, the 6, first frictional layer, 7, spongy layer, 8, upper backup pad.
Embodiment
Below with reference to accompanying drawing to the present invention embodiment carry out in detail, be fully described by.It should be noted that
Embodiment described herein is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where not making opposite explanation, the noun of locality such as " upper and lower " used refers to the side in diagram
To；" compactedness " is defined as the area formed during being contacting and separating.
As Figure 1-3, a kind of layer flexible expandable type friction generator, splicing group is extended by multiple generator units
Dress forms, and each generator unit includes the soft of upper backup pad 8, lower supporting plate 2, connection upper backup pad 8 and lower supporting plate 2 respectively
Property Auxiliary support 1 and at least one triboelectricity unit being arranged between upper backup pad 8 and lower supporting plate 2, the triboelectricity
Unit is by the flexible folding substrate 3 that is fixed between upper backup pad 8 and lower supporting plate 2 and is arranged at intervals at flexible folding base
First friction element of the both sides of bottom 3 and the second friction element are formed, wherein the first friction element is by being in turn secured to flexible folding
The frictional layer 6 of spongy layer 7 and first in formula substrate 3 is formed, and the second friction element is by being in turn secured in flexible folding substrate 3
The frictional layer 5 of metal electrode board 4 and second form, the first frictional layer 6 is the weak metal conducting layer of bound electron ability, and second rubs
Wipe layer 5 and carry out electric charge injection pretreatment for the strong non-metallic insulation layer of bound electron ability and second frictional layer 5, flexibility is rolled over
First frictional layer 6 and the second frictional layer 5 contact with each other disengaging movement under external force in stacked substrate 3.
The both ends of flexible folding substrate 3 of the present invention laminate respectively to be fixed on upper backup pad 8 and lower supporting plate 2,
Flexible folding substrate 3 is respectively equipped with the first friction element or the second friction at the position that laminates of upper backup pad 8 and lower supporting plate 2
Unit；The metal conducting layer of multiple first friction elements is in parallel, and the metal electrode board of multiple second friction elements is in parallel；Described
The material of one frictional layer 6 is the albronze of aluminium, copper or arbitrary proportion, and the thickness of the first frictional layer 6 is 50 μm of -1mm, and second rubs
The material for wiping layer 5 is polytetrafluoroethylene (PTFE), and the thickness of the second frictional layer 5 is 50 μm of -1mm, and the material of metal electrode board is aluminium or copper；
The contact area of the frictional layer 5 of first frictional layer 6 and second is equal；The flexible folding substrate 3 and flexible Auxiliary support 1
Material be polyimide flex film, the thickness of the flexible folding substrate 3 and flexible Auxiliary support 1 is 50 μm-
1mm；The upper backup pad 8 and lower supporting plate 2 are acrylic board.
The operation principle of layer flexible expandable type friction generator of the present invention is：In the reciprocal outer of optional frequency
Under power or vibration environment, multiple first frictional layers contact with each other with separating simultaneously with the second frictional layer, due to each friction layer material
Chemical bond can be formed in certain part surface in contact, electric charge is transferred to another surface by a surface, in order to reach balance
Potential just produces triboelectric charge.
As shown in figure 3, the first frictional layer in the first friction element is connected with the second frictional layer in the second friction element
Metal electrode board is connected with wire, when powered frictional layer contacts or separates, detects electric current.As shown in figure 4, when first
When the unused wire of metal electrode board that frictional layer is connected with the second frictional layer is connected, electrical potential difference be present between two frictional layers, monitor
To voltage；Loaded when being connected between the metal electrode board that the first frictional layer and the second frictional layer connect, generator is outside reciprocal
The lower motion detection of external force effect is to there is reciprocal electric current to flow through load.
A kind of scheme for manufacturing layer flexible expandable type friction generator, but the layer flexible expandable type is given below
The making of friction generator is not limited to that.
In the program：Acrylic board is selected as upper and lower support plate, size：120mm×50mm×4mm；Select area phase
Same metal electrode board and spongy layer, size are：60mm × 50mm, metal electrode board material are copper, thickness 50um-1mm,
It is preferred that 0.1mm, thickness of spongy layer is preferably 2mm；Second frictional layer material is polytetrafluoroethylene (PTFE), thickness and the first frictional layer thickness
Size is consistent, level of coverage 100%.
According to the above-mentioned explanation to layer flexible expandable type friction generator operation principle, designed by above-mentioned preferred scheme
The friction element number of the multiple folded friction generator of manufacture is 12, using symmetrical structure.The generator exists
Moved back and forth under conditions of frequency 1-2Hz, amplitude 20mm, be as shown in figs. 5 and 6 the layer flexible expandable type triboelectricity
The output characteristics of machine, short circuit current is maximum up to 600 μ A, and maximum open circuit voltage is up to 900V.
Self-driven electrochemical degradation system is formed using the layer flexible expandable type friction generator, applied to azo
Dyestuff-Basic Orange II degraded, it is found that solution colour as degradation time is gradually become colorless by orange, shows Basic Orange II
Molecule is converted into other materials, is successfully realized the processing to be generated electricity using friction generator to azo organic pollution, has
Hoping reduces the processing cost of the industrial wastewater of pollutant containing azo.
It follows that the layer flexible expandable type friction generator of the present invention has simple in construction, easy to make, cost
The advantages of cheap and output performance is good and stable.At the same time, the friction generator can be connected by changing generator unit
Connect quantity and friction layer number etc. and control its output performance.Layer flexible expandable type friction generator of the present invention is to shaking
The requirement of dynamic frequency scope is wider, therefore its application can be quite varied.
Embodiment above describes the general principle of the present invention, main features and advantages, the technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, under the scope for not departing from the principle of the invention, various changes and modifications of the present invention are possible, and these changes and improvements are each fallen within
In the scope of protection of the invention.
Claims (9)
1. a kind of layer flexible expandable type friction generator, it is characterised in that by the extension splicing assembling of multiple generator units
Into each generator unit includes the flexible auxiliary branch of upper backup pad, lower supporting plate, connection upper backup pad and lower supporting plate respectively
At least one triboelectricity unit between upper backup pad and lower supporting plate is supportted and is arranged at, the triboelectricity unit is by being fixed on
Flexible folding substrate between upper backup pad and lower supporting plate and it is arranged at intervals at the first of flexible folding substrate both sides and rubs
Wipe unit and the second friction element to form, wherein the first friction element is by the first frictional layer for being fixed in flexible folding substrate
Forming, the second friction element is made up of the metal electrode board being in turn secured in flexible folding substrate and the second frictional layer, the
One frictional layer is the weak metal conducting layer of bound electron ability, and the second frictional layer is the strong non-metallic insulation of bound electron ability
Layer, the first frictional layer and the second frictional layer contact with each other disengaging movement under external force in flexible folding substrate.
2. layer flexible expandable type friction generator according to claim 1, it is characterised in that：The flexible folding
The both ends of substrate laminate respectively to be fixed on upper backup pad and lower supporting plate, and flexible folding substrate is in upper backup pad and lower support
The position that laminates of plate is respectively equipped with the first friction element or the second friction element.
3. layer flexible expandable type friction generator according to claim 1, it is characterised in that：Multiple first frictions are single
The metal conducting layer of member is in parallel, and the metal electrode board of multiple second friction elements is in parallel.
4. layer flexible expandable type friction generator according to claim 1, it is characterised in that：First frictional layer
Material be aluminium, copper or arbitrary proportion albronze, the thickness of the first frictional layer is 50 μm of -1mm, the material of the second frictional layer
For polytetrafluoroethylene (PTFE), the thickness of the second frictional layer is 50 μm of -1mm, and the material of metal electrode board is aluminium or copper.
5. layer flexible expandable type friction generator according to claim 1, it is characterised in that：Second frictional layer
Carry out electric charge injection pretreatment.
6. layer flexible expandable type friction generator according to claim 1, it is characterised in that：First frictional layer
It is equal with the contact area of the second frictional layer.
7. layer flexible expandable type friction generator according to claim 1, it is characterised in that：First friction is single
Member is made up of the spongy layer being in turn secured in flexible folding substrate and the first frictional layer.
8. layer flexible expandable type friction generator according to claim 1, it is characterised in that：The flexible folding
The material of substrate and flexible Auxiliary support is polyimide flex film, the thickness of the flexible folding substrate for 50 μm-
1mm。
9. layer flexible expandable type friction generator according to claim 1, it is characterised in that：The upper backup pad and
Lower supporting plate is acrylic board.
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| CN201710669524.3A CN107425748A (en) | 2017-08-08 | 2017-08-08 | A kind of layer flexible expandable type friction generator |
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| CN201710669524.3A CN107425748A (en) | 2017-08-08 | 2017-08-08 | A kind of layer flexible expandable type friction generator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108111050A (en) * | 2017-12-25 | 2018-06-01 | 河南师范大学 | A kind of more contact layer swing type friction nanometer power generators |
| CN109039144A (en) * | 2018-08-30 | 2018-12-18 | 河南师范大学 | A kind of flexible friction power generator based on 3D printing technique |
| CN109194187A (en) * | 2018-11-05 | 2019-01-11 | 浙江大学 | Contact-type frictional generated energy collection device based on paper folding spring structure |
| CN109217711A (en) * | 2018-11-05 | 2019-01-15 | 浙江大学 | Contact-type frictional power generator based on network substrate |
| CN109245597A (en) * | 2018-11-12 | 2019-01-18 | 浙江大学 | A kind of corrosion-resistant friction nanometer power generator and its method with high output performance |
| CN110759435A (en) * | 2019-11-25 | 2020-02-07 | 北京中科启林科技有限公司 | Pollution treatment system and method based on star-structure friction nano generator |
| CN113241964A (en) * | 2021-04-27 | 2021-08-10 | 河南师范大学 | Multilayer coordinated type friction nanometer generator that 3D printed |
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| CN109039144A (en) * | 2018-08-30 | 2018-12-18 | 河南师范大学 | A kind of flexible friction power generator based on 3D printing technique |
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| CN109217711A (en) * | 2018-11-05 | 2019-01-15 | 浙江大学 | Contact-type frictional power generator based on network substrate |
| CN109245597A (en) * | 2018-11-12 | 2019-01-18 | 浙江大学 | A kind of corrosion-resistant friction nanometer power generator and its method with high output performance |
| CN110759435A (en) * | 2019-11-25 | 2020-02-07 | 北京中科启林科技有限公司 | Pollution treatment system and method based on star-structure friction nano generator |
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