Friction nano-generator for collecting acoustic wave energy

Abstract

The invention provides a friction nano generator for collecting acoustic wave energy, which comprises a Helmholtz resonant cavity, an aluminum film with acoustic holes, a conductive ink printing electrode FEP film and a fixed bottom cover. The Helmholtz resonator consists of a double cylindrical thin tube and a cubic resonator, which stores the acoustic energy and amplifies the amplitude of the acoustic wave. An aluminum film with acoustic holes is fixed at the lower opening of the resonant cavity, and small circular holes are uniformly distributed on the surface of the aluminum film; A FEP film of that conductive ink print electrode is polished by fine sand pap and treated by a high-voltage electric field, is fixed under the aluminum film, is laminate with the FEP film, and conductive inkis printed on the back; FEP vibrate with alternating acoustic pressure and generates electrical energy in contact with that fix aluminum film for separation motion. The energy collecting device of the invention is sensitive to acoustic wave, has high energy collecting efficiency and excellent output performance, and can continuously supply power to a small sensor.

Description

technical field [0001] The invention relates to an energy collection device, in particular to a friction nanogenerator device for collecting sound wave energy. Background technique [0002] With the rapid consumption of global energy, the development and utilization of new energy is particularly important for the development of society and the protection of the ecological environment. Frictional nanogenerators use the relative motion and interaction between nanomaterials to effectively collect low-frequency vibration energy and convert it into electrical energy. Its discovery and research provide new ideas for the collection and utilization of many forms of energy such as vibration energy, wind energy, water energy, and biomass energy, and create a new model for the development of clean waste energy. It is a milestone in the research of new energy development. significance. A large amount of waste energy that is difficult to use in life is expected to be recycled by means ...

AI Technical Summary

Problems solved by technology

However, it is extremely difficult to use piezoelectric materials to convert acoustic energy into electrical energy with a certain power, so piezoelectric materials are not the best way to collect acoustic energy at present.

Frictional nanogenerators use the interaction between materials and are highly sensitive to external disturbances. At the same time, they can effectively collect environmental energy to generate considerable electrical energy output. At present, there are some studies on the use of TENG (frictional nanogenerator) principle to collect acoustic energy for power generation. , but the power output is still insufficient, and there is a lack of mature theory and effective technology to optimize its output so that it can produce the best output effect in a specific frequency range

Images