CN108347192B - Electret self power generation wearable device - Google Patents
Electret self power generation wearable device Download PDFInfo
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- CN108347192B CN108347192B CN201710058868.0A CN201710058868A CN108347192B CN 108347192 B CN108347192 B CN 108347192B CN 201710058868 A CN201710058868 A CN 201710058868A CN 108347192 B CN108347192 B CN 108347192B
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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
- H02N1/06—Influence generators
- H02N1/08—Influence generators with conductive charge carrier, i.e. capacitor machines
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Abstract
The present invention provides a kind of electret self power generation wearable devices, comprising: outer bar shaped elastic webbing；Inner stripe elastic webbing is oppositely arranged with outer bar shaped elastic webbing, and the two collectively forms wearable device carrier, is provided with cavity among the carrier；Electret film is fixed in the cavity；External electrode is arranged on outer bar shaped elastic webbing, opposite with a surface of the electret film；And interior electrode, it is arranged on inner stripe elastic webbing, it is opposite with another surface of the electret film；As wearable device moves, deformation occurs for outer bar shaped elastic webbing and/or inner stripe elastic webbing, electret film changes with the distance between external electrode and/or interior electrode and/or relative position, thus the induction field intensity between the electret film and the external electrode and interior electrode changes, to convert mechanical energy into electric energy.The present invention realizes effective conversion of mechanical energy to electric energy, and voltage, electric current and energy conversion efficiency improve a lot.
Description
Technical field
The present invention relates to wearable intelligent apparatus field more particularly to a kind of electret self power generation wearable devices.
Background technique
Wearable device, such as bracelet, it is the common pendant of human body that aesthetic feeling can be played role in decoration and have by, which being worn in wrist,
Wearing jewelry.The movements such as human arm, foot arm in daily life do not consume mechanical energy, especially human locomotion and race all the time
During step, if converting electric energy for the mechanical energy of this consumption by a kind of intelligent wearable device is subject to trans-utilization, meeting
There is great practical application value in terms of energy conversion.In addition to this, the shortcomings that conventional active charging is to need to find to fill
Power source head perhaps socket or mobile power source.
In addition, existing wearable device power generation mainly generates electricity according to piezoelectric principle, the power generation of temperature difference principle, electromagnetic principle,
But it is small since there are generating voltages, and the small disadvantage of electric current is not easy to be used by wearable sensors part.
Summary of the invention
(1) technical problems to be solved
In view of above-mentioned technical problem, the present invention provides a kind of electret self power generation wearable devices, make full use of human body
Or the mechanical energy that animal arm, foot arm etc. generate during the motion, it is translated into electric energy, mechanical energy is realized and arrives electric energy
Effectively conversion solves the problems, such as the collection of energy that the wearable related intelligent electronic device of human or animal is powered for a long time；Voltage, electric current
And the transfer efficiency of kinetic energy to electric energy improves a lot, and uses convenient for wearable sensors.
(2) technical solution
Electret self power generation wearable device of the present invention includes: outer bar shaped elastic webbing；Inner stripe elastic webbing, with the outer item
Shape elastic webbing is oppositely arranged, and the two collectively forms the carrier of wearable device, is provided with cavity among the carrier；Electret is thin
Film is fixed in the cavity；External electrode, is arranged on the outer bar shaped elastic webbing, and one with the electret film
Surface is opposite；And interior electrode, it is arranged on the inner stripe elastic webbing, it is opposite with another surface of the electret film；
Wherein, as the wearable device moves, deformation occurs for the outer bar shaped elastic webbing and/or inner stripe elastic webbing, described to stay
Polar body film changes with the distance between the external electrode and/or interior electrode and/or relative position, thus the electret
Induction field intensity between film and the external electrode and interior electrode changes, to convert mechanical energy into electric energy.
(3) beneficial effect
It can be seen from the above technical proposal that electret self power generation wearable device of the present invention at least has below beneficial to effect
One of fruit:
(1) wearable device carries out self power generation using electret, and human body or animal arm, foot arm etc. is made full use of to move
The mechanical energy generated in the process, is translated into electric energy, realizes effective conversion of mechanical energy to electric energy, the energy which collects
Amount can be used for the continued power of human body wearable sensors part；It is long-term to solve the wearable related intelligent electronic device of human or animal
The collection of energy problem of power supply；
(2) compared to existing wearable device, electrostatic of the wearable device provided by the invention according to electret mode
Inductive effect power generation, generating voltage and electric current improve a lot, and use convenient for wearable sensors；
(3) using outer rigid support frame and interior rigid support frame, the fixed support to the electret film is realized, is made
It is against damages in the movements such as arm, foot arm bending collision process；
(4) elasticity of wearable device of the present invention makes full use of it to have cavity structure and wearable device carrier,
Greatly improve kinetic energy to electric energy transfer efficiency.
Detailed description of the invention
By the way that shown in attached drawing, above and other purpose of the invention, feature and advantage will be more clear.In all the attached drawings
Identical appended drawing reference indicates identical part.Attached drawing deliberately is not drawn by actual size equal proportion scaling, it is preferred that emphasis is is shown
Purport of the invention out.
Fig. 1 is monocharge electret self power generation wearable device structural schematic diagram of the invention.
Fig. 2 is monocharge electret self power generation wearable device closed loop current test curve of the invention.
Fig. 3 is monocharge electret self power generation wearable device open-loop voltage test curve of the invention.
Fig. 4 is normal electret self power generation wearable device structural schematic diagram of the invention.
Fig. 5 is normal electret self power generation wearable device closed loop current test curve of the invention.
Fig. 6 is normal electret self power generation wearable device open-loop voltage test curve of the invention.
[main element symbol description of the present invention]
The outer bar shaped elastic webbing of 1,20-；
2,21- band gap cavity；
3,15,16,17,18,19,22,35,36,37,38,39- generating function module；
4,23- external electrode；
5,24- tyre cavity；
The outer hard of 6,25- makes somebody a mere figurehead chamber；
7,26- electret film
The outer rigid support frame of 8,27-；
Hard makes somebody a mere figurehead chamber in 9,28-；
Rigid support frame in 10,29-；
Band cavity in 11,31-；
Electrode in 12,32-；
13,33- inner stripe elastic webbing；
14,34- cavity pocket；
30- electret film electrode
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
It should be noted that similar or identical part all uses identical figure number in attached drawing or specification description.It is attached
The implementation for not being painted or describing in figure is form known to a person of ordinary skill in the art in technical field.In addition, though this
Text can provide the demonstration of the parameter comprising particular value, it is to be understood that parameter is equal to corresponding value without definite, but can connect
It is similar to be worth accordingly in the error margin or design constraint received.The direction term mentioned in embodiment, for example, "upper", "lower",
"front", "rear", "left", "right" etc. are only the directions with reference to attached drawing.Therefore, the direction term used is for illustrating not to use
To limit the scope of the invention.
The present invention provides a kind of electret self power generation wearable devices, make full use of human body or animal arm, foot arm etc.
The mechanical energy generated during the motion, is translated into electric energy, realizes effective conversion of mechanical energy to electric energy, solves people
The collection of energy problem that body or the wearable related intelligent electronic device of animal are powered for a long time；Voltage, electric current and kinetic energy are to electric energy
Transfer efficiency improves a lot, and uses convenient for wearable sensors.
One, first embodiment
First embodiment of the invention provides a kind of monocharge electret self power generation wearable device, i.e., only single positive electricity
The charging electret power generator of lotus or negative electrical charge (Monocharge).The present invention the is discussed in detail below in conjunction with Fig. 1-3
The monocharge electret self power generation wearable device provided in one embodiment.
Fig. 1 is single charge electret self power generation wearable device structural schematic diagram of the present invention.Fig. 1 is please referred to, the present invention
The single charge electret self power generation wearable device of proposition includes:
Outer bar shaped elastic webbing 1；
Inner stripe elastic webbing 13；It is oppositely arranged with the outer bar shaped elastic webbing, collectively forms the carrier of wearable device；
The electret film 7 of single charge polarization mode is fixed at the outer bar shaped elastic webbing and inner stripe elasticity
With in the cavity 2 formed；
External electrode 4 is arranged on the outer bar shaped elastic webbing, opposite with a surface of the electret film；And
Interior electrode 12 is arranged on the inner stripe elastic webbing, opposite with another surface of the electret film；
Wherein, as the wearable device moves, shape occurs for the outer bar shaped elastic webbing and/or inner stripe elastic webbing
Become, the electret film changes with the distance between the external electrode and/or interior electrode and/or relative position, thus
Induction field intensity between the electret film and the external electrode and interior electrode changes, so that mechanical energy be converted
For electric energy.
Cavity 2, i.e. band gap cavity are formed between the outer bar shaped elastic webbing and inner stripe elastic webbing, are used to provide sky
Air cavity is convenient for wearable device free deformation.Specifically, the outer bar shaped elastic webbing is with inner stripe elastic webbing along wearable
Device is long to have toughness with the direction extended, and wearable device is made to have certain bending ability, so that user dresses wearable dress
It sets comfortable reliable；There is elasticity with vertical direction along wearable device length, to provide vertical cavity thickness direction because wearable
Device movement generates deformation.
For the ease of bending, it is preferred that the deposit electrode material of the external electrode and interior electrode is in flexible thin-film material's base
On bottom.Flexible thin-film material's substrate preferably insulation organic material, can be identical as the material of inside and outside bar shaped elastic webbing.
Further, between the external electrode and the electret film formed tyre cavity 5, the interior electrode with it is described
Band cavity 11, the tyre cavity and the interior band cavity are variable for providing thickness direction in being formed between electret film 7
Cavity, so that corresponding change can occur for the voltage and charge of the external electrode 4 and interior electrode 12.
As shown in Figure 1, the electret self power generation wearable device further include: outer rigid support frame 8 and interior rigid support
Frame 10, the electret film are fixed in the band gap cavity 2 by the outer rigid support frame and interior rigid support frame,
Keep it against damages in the movements such as human body or animal arm, foot arm bending collision process.
Further, it is supported by the outer rigid support frame and the fixed of interior rigid support frame, the electret film
Two sides be also respectively formed outer hard and make somebody a mere figurehead chamber 6 and make somebody a mere figurehead chamber 9 with interior hard, it is further provided vertical cavity thickness direction is because that can wear
The space that device movement generates deformation is worn, electrostatic induction effect is increased.
The electret film of the single charge polarization mode；External electrode；And interior electrode collectively form it is described wearable
The generating function module of device.The generating function module number of the electret wearable device is more, the electricity of electret power generation
Stream also will be bigger.3,15,16,17,18,19 distributed quantity of generating function module of the wearable device can be one
6 can be preferably but not limited to be multiple.In addition, as shown in Figure 1, the inner stripe elastic webbing is formed by bending the sky for wearing
Chamber hole 14.
The working principle of the single charge electret self power generation wearable device are as follows: with human body or the arm of animal,
The movements such as foot arm drive the wearable device movement, and deformation occurs for the outer bar shaped elastic webbing and/or inner stripe elastic webbing, institute
Corresponding deformation, the electret film and the external electrode and/or interior electricity can occur for the cavity for stating electret film both sides
The distance between pole and/or relative position change, according to electrostatic induction effect, the electret film and external electrode and interior
Induction field intensity between electrode changes, and the surface charge on the external electrode and interior electrode can occur with surface voltage
The charge of corresponding variation, the corresponding high pressure of generation will be exported as electric energy by transfer wire, so that mechanical energy be converted
For electric energy, the self power generation of electret wearable device is realized.
Fig. 2 be to monocharge electret self power generation wearable device shown in FIG. 1 carry out closed loop current test, acquisition can
Object wearing device short circuit current curve, figure it is seen that wearable device short circuit current be greater than 10nA, compared to it is existing can
Object wearing device, short circuit current are relatively high；Fig. 3 is carried out to monocharge electret self power generation wearable device shown in FIG. 1
Open-loop voltage test, the open circuit voltage curve obtained are compared from figure 3, it can be seen that wearable device open-circuit voltage is greater than 1.5V
In existing wearable device, open-circuit voltage is relatively high.
Two, second embodiment
Second embodiment of the invention provides a kind of normal electret self power generation wearable device, i.e. single side plated electrode electret
Body self power generation wearable device.The normal electret provided in second embodiment of the invention is provided below in conjunction with Fig. 4-6
Self power generation wearable device.
Fig. 4 is the normal electret self power generation wearable device structural schematic diagram of the present invention.Referring to figure 4., the present invention proposes
Just resident electret self power generation wearable device include:
Outer bar shaped elastic webbing 20；
Inner stripe elastic webbing 33；It is oppositely arranged with the outer bar shaped elastic webbing, collectively forms the carrier of wearable device；
Electret film 26, be fixed at the outer bar shaped elastic webbing and inner stripe it is elastic belt-shaped at cavity 21 in,
It is formed with electret film electrode 30 on a wherein surface for the electret film 26, i.e., normal electret film；
External electrode 23 is arranged on the outer bar shaped elastic webbing, opposite with a surface of the electret film；And
Interior electrode 32 is arranged on the inner stripe elastic webbing, opposite with another surface of the electret film；
Wherein, as the wearable device moves, shape occurs for the outer bar shaped elastic webbing and/or inner stripe elastic webbing
Become, the electret film changes with the distance between the external electrode and/or interior electrode and/or relative position, thus
Induction field intensity between the electret film and the external electrode and interior electrode changes, so that mechanical energy be converted
For electric energy.
Cavity 21, i.e. band gap cavity are formed between the outer bar shaped elastic webbing and inner stripe elastic webbing, are used to provide
Air dielectric cavity, convenient for the free deformation of wearable device wearing, to improve the reliability of wearable device.Specifically,
The outer bar shaped elastic webbing and inner stripe elastic webbing have toughness along the long direction with extension of wearable device, make wearable dress
It is equipped with certain bending ability, so that user's wearing comfort is reliable；There is elasticity with vertical direction along wearable device length, with
Vertical cavity thickness direction is provided and generates deformation because wearable device moves.
For the ease of bending, it is preferred that the deposit electrode material of the external electrode and interior electrode is in flexible thin-film material's base
On bottom.
Further, tyre cavity 24, the interior electrode and institute are formed between the external electrode and the electret film
Band cavity 31 in being formed between electret film 26 is stated, the tyre cavity and the interior band cavity can for providing thickness direction
Emptying chamber, so that corresponding change can occur for the electrode voltage and charge of the external electrode and interior electrode.
As shown in figure 4, the electret self power generation wearable device further include: outer rigid support frame 27 and interior rigid support
Frame 29, the single side plated electrode electret film are fixed on the interband by the outer rigid support frame and interior rigid support frame
In gap cavity 21, keep it against damages in human body or animal arm, foot arm movement bending collision process.In addition, by described
Outer rigid support frame and the fixed of interior rigid support frame support, and the upper and lower of the electret film is also respectively formed outer hard frame
Cavity 25 and interior hard make somebody a mere figurehead chamber 28, it is further provided vertical cavity thickness direction generates the sky of deformation because wearable device moves
Between, increase electrostatic induction effect.
The electret film；External electrode；And interior electrode collectively forms the generating function module of the wearable device.
The electret wearable device generating function module number is more, and the electric current of electret power generation also will be bigger.Described can
22,35,36,37,38,39 distributed quantity of object wearing device generating function module can for one also be it is multiple, be preferably but not limited to 6
It is a.In addition, as shown in figure 4, the inner stripe elastic webbing is formed by bending the cavity pocket 34 for wearing.
Fig. 5 is to carry out closed loop current test to normal electret self power generation wearable device shown in Fig. 4, and acquisition is worn
Device short circuit current curve is worn, from fig. 5, it can be seen that wearable device short circuit current is greater than 30nA, is worn compared to existing
Device is worn, short circuit current is relatively high；Fig. 6 is to carry out open loop to normal electret self power generation wearable device shown in Fig. 4
Voltage tester, the open circuit voltage curve obtained, from fig. 6, it can be seen that wearable device open-circuit voltage is greater than -4.5V, compared to
Existing wearable device, open-circuit voltage are relatively high.
Compared with first embodiment, the electret film 26 of electret film electrode 30 is coated with using surface, it is easier to
It is realized in technique and surface charge is more stable.
Two class electret self power generation wearable devices are provided in the embodiment of the present application, monocharge electret self power generation is wearable
Device and normal electret self power generation wearable device, are in accordance with the electrostatic induction of electret, when electret film two sides
When electrode space position changes, the electric field strength between corresponding inside and outside electrode 4,12,23,32 changes, to lead
Cause its surface charge and surface voltage that corresponding change can all occur, the corresponding high voltage electricity generated is output to load and is sensed
Device uses, to realize the electret self power generation of wearable device.
In order to guarantee wearable device self power generation effect, in the application first embodiment and second embodiment, the electret
Body thin film and the electrode at its both ends keep space length appropriate, preferably 10 μm of -100mm.
Electret self power generation wearable device of the present invention, can conduct whenever and wherever possible using a kind of good passive power supply mode
Emergent charging and low in cost.It is charged by corona polarizing mode to electret film, makes to generate in foil electret based on air
Dipole and generate have high pressure surface charge and surface voltage, when electret self power generation wearable device is with human body
Or animal arm, foot arm movement when, deformation occurs for outer bar shaped elastic webbing and/or inner stripe elastic webbing, according to electrostatic induction imitate
It answers, with surface voltage corresponding variation, the charge of the corresponding high pressure of generation can occur for the surface charge on the inside and outside electrode
It will be exported by transfer wire as electric energy, and to realize the self power generation of electret wearable device, potential can solve human body
The related long-term uninterrupted power supply of intelligence sensor.
In the application first embodiment and second embodiment, the inside and outside bar shaped elastic webbing preferably uses toughness big and height
The material of elasticity is formed, such as rubber strip, silica gel, PDMS etc., such material is easy to get and cheap.The inside and outside item
The thickness of shape elastic webbing can be 0.2mm-3mm, and width can be 1cm-3cm, and length can be 15cm-30cm.
In the application first embodiment and second embodiment, the electret film can be used polypropylene (PP), gather inclined two
Vinyl fluoride (PVDF), l-lactic acid (PLLA), polytetrafluoroethylene (PTFE) (PTFE), in perfluoroethylene-propylene (FEP) at least within
One of material formed, film thickness can be 10 μm of -10mm.The electrode material of the electret film 7,26 can for aluminium (Al),
Golden (Au), copper (Cu), silver-colored (Ag) etc., electron beam evaporation or magnetron sputtering mode, the thickness of electrode can be used in the mode of plated electrode
Degree can be 1nm-2 μm.
In the application first embodiment and second embodiment, the effect of the band gap cavity 2,21 gaps is to provide and can wear
The flexible curvature of device is worn, the service life of wearable device is improved, the thickness of cavity can be 10 μm of -50mm.It is empty in addition
Chamber 5,24 is the bigger the better with the interior area with cavity 11, the size of 31 structures, and thickness is moderate to be advisable, it is preferred that the tyre is empty
Chamber 5,24 structures and the interior size with cavity 11,31 structures are 0.2cm2-10cm2, with a thickness of 10 μm of -50mm；In addition, empty in addition
Chamber 5,24 and interior band cavity 11,31 structures can be circle, can also be rectangular, can be also the multiple patterns such as five-pointed star.
In the application first embodiment and second embodiment, external electrode 4,23, the size of interior electrode 12,32 is according to empty in addition
Chamber 5,24 and interior band cavity 11,31 area sizes determine, specifically, size can be than tyre cavity 5,24 and interior band cavity
11,31 area sizes are slightly larger, and preferably 1.2-2 times.
In the application first embodiment and second embodiment, wearable device generating function module 3,15,16,17,18,
19,22,35,36,37,38,39 is The more the better in the case where the carrier of wearable device is met the requirements, and quantity is more, wearable device
Generation current is bigger.The external electrode 4,23 of wearable device, interior electrode 12,32 are respectively connected with, wherein interior electrode and external electrode point
Not Yin Chu a conducting wire come out, the power output conducting wire as electret self power generation.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
So far, attached drawing is had been combined the embodiment of the present invention is described in detail.According to above description, art technology
Personnel should have clear understanding to electret self power generation wearable device of the present invention.
It should be noted that in attached drawing or specification text, the implementation for not being painted or describing is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously
It is not limited only to various specific structures, shape or the mode mentioned in embodiment, those of ordinary skill in the art can carry out letter to it
It singly changes or replaces, such as:
(1) outer, the inner stripe elastic webbing may be cyclic annular or other shapes, not influence realization of the invention；
(2) wearable device of the invention is also possible to dress other than being worn on arm, foot arm as bracelet, foot ring
In other wearable devices such as the knee-pads of elbow support or leg on arm, in human motion, cause outer, inner stripe elastic webbing
Deformation produces electricl energy generating function module, the present invention equally may be implemented.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (13)
1. a kind of electret self power generation wearable device characterized by comprising
Outer bar shaped elastic webbing；
Inner stripe elastic webbing is oppositely arranged with the outer bar shaped elastic webbing, and the two collectively forms the carrier of wearable device, the load
Cavity is provided among body；
Electret film is fixed in the cavity；
External electrode is arranged on the outer bar shaped elastic webbing, opposite with a surface of the electret film；And
Interior electrode is arranged on the inner stripe elastic webbing, opposite with another surface of the electret film；
Wherein, as the wearable device moves, deformation occurs for the outer bar shaped elastic webbing and/or inner stripe elastic webbing, institute
Electret film is stated to change with the distance between the external electrode and/or interior electrode and/or relative position, it is thus described to stay
Induction field intensity between polar body film and the external electrode and interior electrode changes, to convert mechanical energy into electricity
Energy.
2. electret self power generation wearable device according to claim 1, which is characterized in that the electret film is single
Electret film electrode is formed on the electret film of kind charge polarization mode or a surface of electret film.
3. electret self power generation wearable device according to claim 1 or 2, which is characterized in that further include: outer hard branch
Support and interior rigid support frame, the electret film are fixed on described by the outer rigid support frame and interior rigid support frame
In cavity.
4. electret self power generation wearable device according to claim 3, which is characterized in that pass through the outer rigid support
Frame and the fixed of interior rigid support frame support, and the two sides of the electret film are also respectively formed outer hard and make somebody a mere figurehead chamber and interior hard
Aerial chamber, for providing vertical cavity thickness direction because wearable device moves the space of generation deformation.
5. electret self power generation wearable device according to claim 1, which is characterized in that the external electrode is stayed with described
Tyre cavity is formed between polar body film, and interior band cavity, the tyre are formed between the interior electrode and the electret film
Cavity and the interior cavity that can be changed with cavity for thickness direction.
6. electret self power generation wearable device according to claim 5, which is characterized in that the tyre cavity and interior band
The size of cavity is 0.2cm2-10cm2, with a thickness of 10 μm of -50mm.
7. electret self power generation wearable device according to claim 1, which is characterized in that the electret film and institute
The induction field intensity stated between external electrode and interior electrode changes, so as to cause the surface of the external electrode and interior electrode electricity
Lotus and surface voltage change, the charge output of generation, to realize electret wearable device self power generation.
8. electret self power generation wearable device according to claim 2, which is characterized in that the electret film electrode
Material be selected from aluminium, gold, copper or silver, with a thickness of 1nm-2 μm.
9. electret self power generation wearable device according to any one of claim 1 to 8, which is characterized in that described outer
The deposit electrode material of electrode and interior electrode is in flexible thin-film material's substrate.
10. electret self power generation wearable device according to any one of claim 1 to 8, which is characterized in that described to stay
The space length of polar body film and the inside and outside electrode is 10 μm~100mm.
11. electret self power generation wearable device according to any one of claim 1 to 8, which is characterized in that described to stay
Polar body film, external electrode, interior electrode constitute the generating function module of wearable device, which is one or more
It is a.
12. electret self power generation wearable device according to any one of claim 1 to 8, which is characterized in that in described
Bar shaped elastic webbing or outer bar shaped elastic webbing are ring-type.
13. electret self power generation wearable device according to any one of claim 1 to 8, which is characterized in that described to stay
The material of polar body film be polypropylene, polyvinylidene fluoride, l-lactic acid, polytetrafluoroethylene (PTFE) and perfluoroethylene-propylene in extremely
It is one of few.
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| CN109672363B (en) * | 2018-11-29 | 2021-07-02 | 东北林业大学 | Joint type portable wearable energy collection device and method |
| CN109806571A (en) * | 2019-03-26 | 2019-05-28 | 京东方科技集团股份有限公司 | A kind of capacitance sensor, wrist guard, application method and production method |
| CN111081164A (en) * | 2019-12-30 | 2020-04-28 | 杭州电子科技大学 | Passive electronic road directing device based on energy collector |
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