CN108923681B - Contact dielectric elastomer generator structure - Google Patents
Contact dielectric elastomer generator structure Download PDFInfo
- Publication number
- CN108923681B CN108923681B CN201810916508.4A CN201810916508A CN108923681B CN 108923681 B CN108923681 B CN 108923681B CN 201810916508 A CN201810916508 A CN 201810916508A CN 108923681 B CN108923681 B CN 108923681B
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- China
- Prior art keywords
- dielectric elastomer
- inner cavity
- cylinder shell
- rigid
- elastomer film
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- 229920002595 Dielectric elastomer Polymers 0.000 title claims abstract description 51
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 9
- 239000010439 graphite Substances 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000008188 pellet Substances 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000005284 excitation Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Bodies (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a contact type dielectric elastomer generator structure, which comprises a cylinder shell, an end cover, a rigid ball, a dielectric elastomer film, a graphite electrode, a fixing screw and an inner cavity, wherein: an inner cavity is formed in the cylinder shell, rigid pellets are arranged in the inner cavity, end covers are fixedly mounted at two ends of the cylinder shell through fixing screws, a dielectric elastomer film is arranged between the cylinder shell and the end covers, graphite electrodes are arranged on one side, close to the end covers, of the dielectric elastomer film, the diameter of each rigid pellet is larger than the length of the inner cavity, and the dielectric elastomer film is stretched. The diameter of the rigid small ball is smaller than that of the inner cavity of the cylinder shell, and the two ends of the rigid small ball are in critical contact with the dielectric elastomer films, so that the dielectric elastomer films at the two ends are stretched by 2.5 times, and the collision efficiency can be effectively improved; has the characteristics of simple structure, convenient installation, low cost and wide application range.
Description
Technical Field
The invention relates to the technical field of generators, in particular to a contact dielectric elastomer generator structure.
Background
The dielectric elastomer generator has the characteristics of large material deformation range, high electromechanical conversion efficiency, light structure and the like, and is widely applied to the field of power generation. From the environmental point of view, the absorbed energy is mostly clean vibration energy such as tidal energy, wind energy and the like, environmental noise and the like, has certain environmental protection. The dielectric elastomer generator is a novel generator based on the variable capacitance principle, and is structurally divided into three layers: the upper and lower layers (surfaces) are coated with flexible electrodes, with a dielectric elastomer film in between. Under the external vibration excitation, the small balls move between the elastic films at the two ends, the shape of the films is continuously stretched and recovered, and the change of capacitance occurs, so that the conversion from vibration energy to electric energy is realized. The external excitation of the contact dielectric elastomer generator can be various vibration energy sources, can work efficiently under broadband excitation, and has wide future application scenes. At present, dielectric elastomer generators are more in variety, and for contact dielectric elastomer generators, the process of deforming a dielectric elastomer film by using small balls is surface contact, so that the loss of mechanical energy is greatly reduced, and the energy conversion efficiency is improved; meanwhile, the type of absorbed energy is not limited, and all energy sources which can enable the internal pellets to move between the elastic films at the two ends are only needed, so that the contact dielectric elastic generator has wider application range.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the contact type dielectric elastomer generator structure which is characterized in that a rigid small ball is in contact with a dielectric elastomer film at any time and works in a relatively wide frequency range, and the structure is simple, the installation is convenient, the cost is low and the application range is wide.
The technical scheme of the invention is as follows: a contact dielectric elastomer generator structure comprising a cylindrical housing, an end cap, rigid pellets, a dielectric elastomer membrane, graphite electrodes, set screws and an inner cavity, wherein: an inner cavity is formed in the cylinder shell, rigid pellets are arranged in the inner cavity, end covers are fixedly mounted at two ends of the cylinder shell through fixing screws, a dielectric elastomer film is arranged between the cylinder shell and the end covers, graphite electrodes are arranged on one side, close to the end covers, of the dielectric elastomer film, the diameter of each rigid pellet is larger than the length of the inner cavity, and the dielectric elastomer film is stretched.
Preferably, the diameter of the rigid pellet is less than the diameter of the lumen.
Preferably, the dielectric elastomer film is stretched 2.5 times.
Preferably, the rigid pellets are made of stainless steel.
Preferably, the cylinder shell and the end cover are made of acrylic materials.
The invention has the technical effects and advantages that:
1. under the external vibration excitation, the rigid pellets move between the dielectric elastomer films at the two ends, the shape of the films is continuously stretched and recovered, and the change of capacitance occurs, so that the conversion from vibration energy to electric energy is realized;
2. according to the invention, the cylinder shell, the end cover and the flange are all made of acrylic materials, so that the power generation efficiency can be improved, and the charge leakage can be reduced;
3. the diameter of the rigid small ball is smaller than that of the inner cavity of the cylinder shell, and the two ends of the rigid small ball are in critical contact with the dielectric elastomer films, so that the dielectric elastomer films at the two ends are stretched by 2.5 times, and the collision efficiency can be effectively improved;
4. the invention has the characteristics of simple structure, convenient installation, low cost and wide application range.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1-cylinder shell, 2-end cover, 3-rigid pellet, 4-dielectric elastomer film, 5-graphite electrode, 6-fixing screw and 7-inner cavity.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. Based on
Embodiments of the present invention are intended to be within the scope of the present invention as defined by the appended claims.
Embodiment 1 referring to fig. 1, a contact dielectric elastomer generator structure comprises a cylindrical housing 1, an end cap 2, a rigid pellet 3, a dielectric elastomer film 4, a graphite electrode 5, a fixing screw 6 and an inner cavity 7, wherein: an inner cavity 7 is formed in the cylinder shell 1, a rigid small ball 3 is arranged in the inner cavity 7, end covers 2 are fixedly mounted at two ends of the cylinder shell 1 through fixing screws 6, a dielectric elastomer film 4 is arranged between the cylinder shell 1 and the end covers 2, graphite electrodes 5 are arranged on one side, close to the end covers 2, of the dielectric elastomer film 4, the diameter of the rigid small ball 3 is larger than the length of the inner cavity 7, and the dielectric elastomer film 4 is stretched.
Embodiment 2, referring to fig. 1, a contact dielectric elastomer generator structure, wherein: the diameter of the rigid small ball 3 is smaller than that of the inner cavity 7, so that the collision efficiency of the rigid small ball 3 and the dielectric elastomer films 4 at the two ends can be improved. The procedure is as in example 1.
Embodiment 3, referring to fig. 1, a contact dielectric elastomer generator structure, wherein: the dielectric elastomer film 4 is stretched by 2.5 times, and the collision efficiency can be effectively improved. The procedure is as in example 1.
Embodiment 4, referring to fig. 1, a contact dielectric elastomer generator structure, wherein: the rigid pellets 3 are made of stainless steel, which is beneficial to improving the power generation efficiency and reducing the charge leakage. The procedure is as in example 1.
Embodiment 5, please refer to fig. 1, a contact dielectric elastomer generator structure, wherein: the cylinder shell 1 and the end cover 2 are made of acrylic materials, so that the power generation efficiency is improved, and the charge leakage is reduced. The procedure is as in example 1.
The working principle of the invention is as follows: during operation, the dielectric elastomer films 4 at two ends of the cylinder shell 1 are utilized to form an inner cavity 7, a rigid small ball 3 is placed in the inner cavity 7, the rigid small ball 3 is ensured to enable the dielectric elastomer films 4 at two ends to be stretched by 2.5 times, under the condition of external excitation, the rigid small ball 3 continuously collides with the dielectric elastomer films 4, in the collision process of each time, the dielectric elastomer films 4 are stretched, so that the surface area is increased, the thickness is reduced and the capacitance is increased, and in the collision gap, the capacitance of the dielectric elastomer films 4 is restored to an initial value, and larger output electric energy is generated, so that vibration energy collection and electric energy output are realized.
Claims (1)
1. The utility model provides a contact dielectric elastomer generator structure, includes drum shell (1), end cover (2), rigidity ball (3), dielectric elastomer film (4), graphite electrode (5), set screw (6) and inner chamber (7), its characterized in that: the novel vibration energy-saving device is characterized in that an inner cavity (7) is formed in the cylinder shell (1), a rigid small ball (3) is arranged in the inner cavity (7), the diameter of the rigid small ball (3) is smaller than that of the inner cavity (7), end covers (2) are fixedly arranged at two ends of the cylinder shell (1) through fixing screws (6), the cylinder shell (1) and the end covers (2) are made of acrylic materials, the rigid small ball (3) is made of stainless steel materials, a dielectric elastomer film (4) is arranged between the cylinder shell (1) and the end covers (2), graphite electrodes (5) are arranged on one side, close to the end covers (2), of the dielectric elastomer film (4), the diameter of the rigid small ball (3) is larger than that of the inner cavity (7), the dielectric elastomer film (4) is stretched for 2.5 times, so that the surface area is increased, the thickness is reduced, the capacitance is increased, the capacitance of the dielectric elastomer film (4) is restored to an initial value, and larger output electric energy is generated, and vibration energy is acquired and output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810916508.4A CN108923681B (en) | 2018-08-13 | 2018-08-13 | Contact dielectric elastomer generator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810916508.4A CN108923681B (en) | 2018-08-13 | 2018-08-13 | Contact dielectric elastomer generator structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108923681A CN108923681A (en) | 2018-11-30 |
| CN108923681B true CN108923681B (en) | 2024-05-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810916508.4A Active CN108923681B (en) | 2018-08-13 | 2018-08-13 | Contact dielectric elastomer generator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108923681B (en) |
Citations (10)
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|---|---|---|---|---|
| CN101373938A (en) * | 2007-08-24 | 2009-02-25 | 财团法人工业技术研究院 | Piezoelectric generating unit structure |
| CN101459390A (en) * | 2008-12-30 | 2009-06-17 | 浙江师范大学 | Application of dielectric elastomer on electricity generator |
| CN104104261A (en) * | 2013-04-12 | 2014-10-15 | 纳米新能源（唐山）有限责任公司 | Power generation system |
| CN104104260A (en) * | 2013-04-12 | 2014-10-15 | 纳米新能源（唐山）有限责任公司 | Power generation system |
| CN104242721A (en) * | 2014-09-15 | 2014-12-24 | 湖北三江航天红林探控有限公司 | Flexible actuator |
| CN104789139A (en) * | 2015-04-15 | 2015-07-22 | 浙江大学 | Reversible adhesive device based on dielectric elastomer |
| CN106602924A (en) * | 2016-11-18 | 2017-04-26 | 北京纳米能源与系统研究所 | Frictional nano-generator for collecting vibration energy and vibration sensor |
| CN107061208A (en) * | 2017-06-14 | 2017-08-18 | 苏州赛易特环保科技有限公司 | A kind of shaking generation device |
| CN105656344B (en) * | 2016-03-02 | 2017-10-20 | 北京石油化工学院 | A kind of automobile tire TRT based on dielectric elastomer |
| CN208539802U (en) * | 2018-08-13 | 2019-02-22 | 南昌大学 | A kind of novel touch dielectric elastomer electric generator structure |
-
2018
- 2018-08-13 CN CN201810916508.4A patent/CN108923681B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373938A (en) * | 2007-08-24 | 2009-02-25 | 财团法人工业技术研究院 | Piezoelectric generating unit structure |
| CN101459390A (en) * | 2008-12-30 | 2009-06-17 | 浙江师范大学 | Application of dielectric elastomer on electricity generator |
| CN104104261A (en) * | 2013-04-12 | 2014-10-15 | 纳米新能源（唐山）有限责任公司 | Power generation system |
| CN104104260A (en) * | 2013-04-12 | 2014-10-15 | 纳米新能源（唐山）有限责任公司 | Power generation system |
| CN104242721A (en) * | 2014-09-15 | 2014-12-24 | 湖北三江航天红林探控有限公司 | Flexible actuator |
| CN104789139A (en) * | 2015-04-15 | 2015-07-22 | 浙江大学 | Reversible adhesive device based on dielectric elastomer |
| CN105656344B (en) * | 2016-03-02 | 2017-10-20 | 北京石油化工学院 | A kind of automobile tire TRT based on dielectric elastomer |
| CN106602924A (en) * | 2016-11-18 | 2017-04-26 | 北京纳米能源与系统研究所 | Frictional nano-generator for collecting vibration energy and vibration sensor |
| CN107061208A (en) * | 2017-06-14 | 2017-08-18 | 苏州赛易特环保科技有限公司 | A kind of shaking generation device |
| CN208539802U (en) * | 2018-08-13 | 2019-02-22 | 南昌大学 | A kind of novel touch dielectric elastomer electric generator structure |
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| Publication number | Publication date |
|---|---|
| CN108923681A (en) | 2018-11-30 |
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