CN115265878B - Bionic touch sensor based on friction nano generator - Google Patents
Bionic touch sensor based on friction nano generator Download PDFInfo
- Publication number
- CN115265878B CN115265878B CN202210923853.7A CN202210923853A CN115265878B CN 115265878 B CN115265878 B CN 115265878B CN 202210923853 A CN202210923853 A CN 202210923853A CN 115265878 B CN115265878 B CN 115265878B
- Authority
- CN
- China
- Prior art keywords
- elastic
- front cover
- sealing
- air holes
- bulge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 60
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 30
- 238000009423 ventilation Methods 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 230000003592 biomimetic effect Effects 0.000 claims 5
- 230000008447 perception Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000002522 swelling effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electronic Switches (AREA)
- Push-Button Switches (AREA)
Abstract
The invention provides a bionic touch sensor based on a friction nano generator, which relates to the technical field of friction nano touch sensing and mainly comprises an elastic convex sealing front cover, an aluminum film with air holes, a conductive ink printing electrode FEP film and an elastic sealing rear cover; the elastic bulge-shaped sealing front cover and the elastic sealing rear cover form a sealing environment together, an aluminum die and an FEP film are sealed in the sealing environment, and the elastic bulge-shaped sealing front cover forms an air chamber at the inner side of a bulge part of the elastic bulge-shaped sealing front cover; the FEP film is fixed on the inner side of the elastic sealing rear cover, and conductive ink is printed on the back of the FEP film and can move along with the elastic rear cover; the aluminum mould is fixed on the inner side of the elastic bulge sealing front cover, and ventilation holes are distributed in the aluminum mould. The invention has reasonable structure, stable electric signal, can continuously sense the outside, and has important significance for the condition of needing to stably sense the outside.
Description
Technical Field
The invention relates to the technical field of friction nano power generation, in particular to a bionic touch sensor based on a friction nano power generator.
Background
Haptic perception plays an important role in human life, and is also of particular benefit to robots, in some noisy, dark environments, where both optical and acoustic sensors are affected.
The current mainstream touch sensor mainly comprises piezoelectricity, piezoresistance type sensors which generate signals by means of resistance change and consume electric energy; the voltage generated by the piezoelectric sensor is low, and the subsequent signal processing is not convenient.
Disclosure of Invention
In view of the above, the present invention provides a bionic touch sensor based on a friction nano-generator, wherein the touch sensor of the friction nano-generator can be self-powered without additional consumption of electric energy; and the voltage generated by the triboelectricity is higher, so that the subsequent signal processing is easier.
Therefore, the technical scheme adopted by the invention is as follows:
The invention provides a bionic touch sensor based on a friction nano generator, which comprises an elastic convex sealing front cover, an aluminum film with air holes, a conductive ink printing electrode FEP film and an elastic sealing rear cover, wherein the elastic convex sealing front cover is provided with an air hole;
The elastic bulge-shaped sealing front cover and the elastic sealing rear cover form a sealing environment together, an aluminum film with air holes and an FEP film are sealed in the sealing environment, and the elastic bulge-shaped sealing front cover forms an air chamber at the inner side of a bulge part of the elastic bulge-shaped sealing front cover; the FEP film is fixed on the inner side of the elastic sealing rear cover, and conductive ink is printed on the back of the FEP film and can move along with the elastic rear cover; the aluminum film with the air holes is fixed on the side of the elastic convex sealing front cover, and the air holes are distributed.
Further, the aluminum film with the air holes is provided with a fixing part, the elastic bulge-shaped sealing front cover is provided with a fixing groove, and the aluminum film with the air holes is placed into the fixing groove of the elastic bulge-shaped sealing front cover through the fixing part, so that the fixing effect is achieved.
Further, the elastic bulge-shaped sealing front cover is provided with a limit edge, so that the amplitude of the volume change of the air chamber is limited.
Further, the elastic sealing back cover is made of soft silica gel.
Further, the elastic bulge-like seal front cover is made of hard silica gel.
Further, the volume of the air chamber is reduced under the action of external force, air in the air chamber flows out of the air chamber through the air holes with the air hole aluminum film, so that the elastic sealing rear cover bulges, the FEP film moves at the same time, the FEP film is separated from the air hole aluminum film, and induction charges are generated to generate an electric signal;
when the external force disappears, the air chamber can recover the volume due to the elasticity, and under the action of the pressure, the air passes through the air holes again and returns to the air chamber, and the FEP film is recovered to be in contact with the aluminum film with the air holes.
The invention has the beneficial effects that:
(1) The friction nano generator has the advantages of low cost and high sensitivity based on contact electrification of the friction nano generator. Meanwhile, because the principle of contact separation is that a pressure difference is utilized, the pressure difference exists in a small contact, the contact separation is generated, and finally a signal is generated. Therefore, the touch sensor has sensitive perception to external changes, greatly improves the perception capability by directly contacting with a perception body, and has the advantages of small volume and low cost.
(2) The shape and the size of the touch sensor in the invention can not influence the contact and separation process, so that the shape and the size of the touch sensor can be changed, a plurality of touch sensors can be simply integrated together, can be placed in different perception scenes, can be arrayed, and can improve the perception capability.
(3) The main structure of the bionic touch sensor is a sealing environment formed by the elastic bulge-shaped sealing front cover and the elastic sealing rear cover, so that the bionic touch sensor has waterproof and moistureproof capabilities and potential of underwater operation.
(4) The touch sensor is based on the contact electrification of the nano generator, but compared with the principle that other sensors based on the nano generator generate an electric signal through generating mechanical change, the touch sensor is inspired by the swelling action of two cheeks of a frog, simulates the swelling of the two cheeks of the frog, generates pressure difference change by utilizing volume change, and generates contact area change, so that the electric signal is generated. Therefore, the signal of the invention has certain persistence, is convenient for detection, has high sensitivity to pressure, and can not only sense the contact, but also sense the degree of the contact.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a bionic tactile sensor based on a friction nano-generator according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an exploded structure of a bionic tactile sensor based on a friction nano-generator according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a bionic tactile sensor based on a friction nano-generator according to an embodiment of the present invention;
In the figure, 1, an elastic sealing rear cover; 2. FEP film; 3. a vent hole; 4. an aluminum film; 5. a gas chamber; 6. an elastic bulge-shaped sealing front cover; 7. limit edges; 8. a fixing groove; 9. fixing the edges; 10. conductive ink.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1-2, the bionic touch sensor based on the friction nano-generator provided by the embodiment of the invention is inspired by the swelling action of two cheeks of a frog to simulate the swelling of the two cheeks of the frog. Mainly comprises the following steps: an elastic bulge-shaped sealing front cover 6, an aluminum film 4 with air holes, a conductive ink printing electrode FEP film 2 and an elastic sealing rear cover 1; the elastic bulge-shaped sealing front cover 6 and the elastic sealing rear cover 1 form a sealing environment together, and the aluminum film 4 with the air holes and the conductive ink printing electrode FEP film 2 are sealed in the sealing environment. Wherein:
The elastic sealing back cover 1 is made of soft silica gel.
The elastic bulge-like sealing front cover 6 is made of hard silica gel. The elastic bulge-like sealing front cover 6 forms an air chamber 5 inside its bulge. The elastic bulge-shaped sealing front cover 6 is provided with a fixing groove 8 for fixing the aluminum film 4 with the air holes. The elastic bulge-like sealing front cover 6 has a limit rib 7 for limiting the amplitude of the volume change of the air chamber 5.
The FEP film 2 of the conductive ink printing electrode is fixed on the inner side of the elastic sealing rear cover 1, and the conductive ink is printed on the back and can move along with the elastic rear cover 1.
The aluminum film 4 with ventilation holes is fixed on the side of the elastic convex sealing front cover 6, and ventilation holes 3 are distributed. The aluminum film 4 with the air holes is provided with a fixing part 9, and the aluminum film 4 with the air holes is placed into a fixing groove 8 of the elastic bulge-shaped sealing front cover 6 through the fixing part 9 to achieve the fixing effect.
As shown in fig. 3, the physical mechanism by which the tactile sensor operates is: the volume of the air chamber 5 is reduced under the action of external force, air in the air chamber 5 flows out of the air chamber through the air holes 3 of the aluminum film 4, so that the elastic sealing rear cover 1 bulges, the FEP film 2 moves along with the cover 1, the FEP film 4 is separated, extra electronic potential energy on the surface of the aluminum film 4 disappears, and due to the potential difference between the aluminum contact surface and the electrode on the back of the FEP, electrons flow out of the electrode of the FEP along an external circuit to compensate the electronic loss of the aluminum and balance the potential difference, and meanwhile, induction charges are generated at the same time, so that an electric signal is generated. When the external force disappears, the air chamber 5 can restore the volume due to the elasticity, and under the action of the pressure, the air passes through the air holes 3 again and returns to the air chamber 5, and the FEP film 2 contacts with the aluminum film 4 at the moment, so that a potential difference is generated, and reverse electron flow is generated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. A bionic touch sensor based on a friction nano generator is characterized in that: comprises an elastic bulge-shaped sealing front cover (6), an aluminum film (4) with air holes, a conductive ink (10) printing electrode FEP film (2) and an elastic sealing rear cover (1);
the elastic bulge-shaped sealing front cover (6) and the elastic sealing rear cover (1) form a sealing environment together, an aluminum film (4) with ventilation holes and an FEP film (2) are sealed, and the elastic bulge-shaped sealing front cover forms an air chamber (5) at the inner side of a bulge part; the FEP film (2) is fixed on the inner side of the elastic sealing rear cover (1), and conductive ink is printed on the back of the FEP film and can move along with the elastic rear cover (1); the aluminum film (4) with the air holes is fixed on the side of the elastic convex sealing front cover (6), and the air holes (3) are distributed.
2. The biomimetic tactile sensor based on a friction nano-generator according to claim 1, wherein: the aluminum film (4) with the air holes is provided with a fixing part (9), the elastic convex sealing front cover (6) is provided with a fixing groove (8), and the aluminum film (4) with the air holes is placed into the fixing groove (8) of the elastic convex sealing front cover (6) through the fixing part (9) to achieve the fixing effect.
3. The biomimetic tactile sensor based on a friction nano-generator according to claim 1, wherein: the elastic bulge-shaped sealing front cover (6) is provided with a limiting edge (7) for limiting the volume change amplitude of the air chamber (5).
4. The biomimetic tactile sensor based on a friction nano-generator according to claim 1, wherein: the elastic sealing back cover (1) is made of soft silica gel.
5. The biomimetic tactile sensor based on a friction nano-generator according to claim 1, wherein: the elastic bulge-shaped sealing front cover (6) is made of hard silica gel.
6. The biomimetic tactile sensor based on a friction nano-generator according to claim 1, wherein: the volume of the air chamber (5) can be reduced under the action of external force, air in the air chamber (5) flows out of the air chamber through the air holes (3) with the air holes (4), so that the elastic sealing rear cover (1) is bulged, the FEP film (2) is also moved subsequently, the FEP film (1) is separated from the air holes (4), and induction charges are generated to generate electric signals;
When the external force disappears, the air chamber (5) can restore the volume due to the elasticity, and under the action of the pressure, the air passes through the air holes (3) again and returns to the air chamber (5), and at the moment, the FEP film (2) restores to the original position and contacts with the aluminum film (4) with the air holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210923853.7A CN115265878B (en) | 2022-08-02 | 2022-08-02 | Bionic touch sensor based on friction nano generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210923853.7A CN115265878B (en) | 2022-08-02 | 2022-08-02 | Bionic touch sensor based on friction nano generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115265878A CN115265878A (en) | 2022-11-01 |
| CN115265878B true CN115265878B (en) | 2024-05-17 |
Family
ID=83746419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210923853.7A Active CN115265878B (en) | 2022-08-02 | 2022-08-02 | Bionic touch sensor based on friction nano generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115265878B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115674274A (en) * | 2022-11-10 | 2023-02-03 | 大连海事大学 | Non-contact collision avoidance protection device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242723A (en) * | 2013-06-13 | 2014-12-24 | 国家纳米科学中心 | Single-electrode friction nanogenerator and generating method and self-driven tracking device |
| CN104426418A (en) * | 2013-08-30 | 2015-03-18 | 纳米新能源（唐山）有限责任公司 | Generating air bag device and air bag generating shoes applying same |
| CN107437902A (en) * | 2016-05-27 | 2017-12-05 | 北京纳米能源与***研究所 | A kind of implanted collection of energy device |
| CN112049894A (en) * | 2020-08-24 | 2020-12-08 | 海南大学 | Semi-active energy recovery vibration absorber |
| CN113162457A (en) * | 2021-04-23 | 2021-07-23 | 大连海事大学 | Bionic touch sensor based on friction nano generator |
| CN113507232A (en) * | 2021-07-13 | 2021-10-15 | 大连海事大学 | Ship-engine vibration self-driven sensing device based on friction nano generator |
| CN114123842A (en) * | 2021-10-29 | 2022-03-01 | 长三角(嘉兴)纳米应用技术研究院 | Arc-shaped self-rebounding friction nano generator |
| CN216645591U (en) * | 2022-01-21 | 2022-05-31 | 南京邮电大学 | Acoustic sensing device capable of realizing self-energy supply |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9625330B2 (en) * | 2014-08-01 | 2017-04-18 | The Board Of Trustees Of The Leland Stanford Junior University | Methods and apparatus concerning multi-tactile sensitive (E-skin) pressure sensors |
| CN111245081B (en) * | 2020-01-21 | 2023-06-20 | 电子科技大学 | Self-powered automobile exhaust sensor and method |
-
2022
- 2022-08-02 CN CN202210923853.7A patent/CN115265878B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242723A (en) * | 2013-06-13 | 2014-12-24 | 国家纳米科学中心 | Single-electrode friction nanogenerator and generating method and self-driven tracking device |
| CN104426418A (en) * | 2013-08-30 | 2015-03-18 | 纳米新能源（唐山）有限责任公司 | Generating air bag device and air bag generating shoes applying same |
| CN107437902A (en) * | 2016-05-27 | 2017-12-05 | 北京纳米能源与***研究所 | A kind of implanted collection of energy device |
| CN112049894A (en) * | 2020-08-24 | 2020-12-08 | 海南大学 | Semi-active energy recovery vibration absorber |
| CN113162457A (en) * | 2021-04-23 | 2021-07-23 | 大连海事大学 | Bionic touch sensor based on friction nano generator |
| CN113507232A (en) * | 2021-07-13 | 2021-10-15 | 大连海事大学 | Ship-engine vibration self-driven sensing device based on friction nano generator |
| CN114123842A (en) * | 2021-10-29 | 2022-03-01 | 长三角(嘉兴)纳米应用技术研究院 | Arc-shaped self-rebounding friction nano generator |
| CN216645591U (en) * | 2022-01-21 | 2022-05-31 | 南京邮电大学 | Acoustic sensing device capable of realizing self-energy supply |
Non-Patent Citations (1)
| Title |
|---|
| 基于薄膜拍打型摩擦纳米发电机的风能收集研究;杨恩;王岩;王建业;王川;柳长昕;吴梦维;米建春;徐敏义;中国科学(技术科学);20211231(第006期);684-698 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115265878A (en) | 2022-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100354618C (en) | Static capacity type sensor and its manufacturing method | |
| CN115265878B (en) | Bionic touch sensor based on friction nano generator | |
| US8680876B2 (en) | Dynamic quantity detecting member and dynamic quantity detecting apparatus | |
| CN102640093B (en) | Printing-type power sensor within touch-screen | |
| CN106502446B (en) | In-cell touch type display device and its driving method, touch circuit, display driver | |
| KR20190027553A (en) | Portable terminal comprising touch pressure detector on side of the same | |
| WO2011125408A1 (en) | Touch panel and input/output device provided with the touch panel | |
| CN106066712B (en) | Force sensing module | |
| JP2001165790A (en) | Force-detecting device | |
| JP2004045243A (en) | Capacitance type sensor | |
| US20190317604A1 (en) | Elastomer suspension with actuation functionality or sensing functionality | |
| CN111902795A (en) | Stylus with tactile feedback for texture simulation | |
| JP2004146099A (en) | Electronic apparatus having touch sensor | |
| US11809631B2 (en) | Reluctance haptic engine for an electronic device | |
| JP2004045173A (en) | Capacitance type sensor | |
| US11372495B2 (en) | Touch sensing device and electronic device capable of identifying positions of multiple touches | |
| CN108241017A (en) | A kind of flexible self-powered based on alveolar bionics structure is taken offence body sensor and preparation method thereof | |
| US10459584B2 (en) | Electronic book with touch sensing and page number detection | |
| EP3757732A1 (en) | Touch button assembly, vibration sensor assembly and electronic device | |
| JP2001027570A (en) | Electrostatic capacity type force sensor | |
| JP4756097B1 (en) | Input device | |
| KR20190027801A (en) | Portable terminal comprising touch pressure detector on side of the same | |
| JP2003139628A (en) | Capacity-type sensor | |
| US11036297B2 (en) | Tactile feedback device | |
| KR102393220B1 (en) | Touch sensing device and electronic apparatus having a reference signal update function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |