Oscillating friction nano-generator

Abstract

The invention discloses an oscillating friction nano-generator comprising a weight block, an inner cylinder, an inner cylinder cover plate, a bearing, an arched flexible film array, a central shaft, an outer cylinder, an electrode array, and an outer cylinder cover plate. The power generating portion of the oscillating friction nano-generator is an independent layered friction nano-generator composed of the arched flexible film array and the electrode array; the other portions of the oscillating friction nano-generator ensure the sufficient contact and the relative motion of the arched flexible film array and the electrode array. Since the arched structure of the flexible film facilitates the relative motion of the film and the electrode, the oscillating friction nano-generator is capableof converting various oscillating or vibrating energy into electrical energy. In addition, if the weight block is removed and the bearing position, the central shaft fixing position and the shaft length are adjusted, the oscillating friction nano-generator can also collect the rotational energy and convert the rotational energy into electrical energy.

Description

technical field [0001] The invention belongs to the technical field of generators, and in particular relates to an oscillating friction nanometer generator. Background technique [0002] As early as BC, people discovered the phenomenon of triboelectrification. It was not until the 18th and 19th centuries that people conducted systematic research on it and then developed it into the subject of electromagnetism. Nowadays, the phenomenon of triboelectrification and its principle are well known, but because the triboelectrification has always been recognized as a negative effect, there has been no direct application of triboelectrification. It was not until 2012, when Professor Wang Zhonglin's research group first invented triboelectric nanopower generation technology, that people gradually realized that triboelectrification, an ancient and ubiquitous phenomenon, has unimaginable application potential in energy harvesting and self-driven sensing. [0003] When any two dissimila...

AI Technical Summary

Problems solved by technology

This kind of contact, on the one hand, will continuously increase the wear degree of the material and shorten the service life of the device; on the other hand, this kind of contact will make the friction resistance between the two friction layers too large, and it is impossible to effectively collect various low-intensity rotational energies

Utilizing the flexible contact between the sheet-like flexible film and the electrodes, it can overcome the disadvantage of the hard-hard contact between the friction layers in the traditional rotary triboelectric nanogenerator, which leads to large frictional resistance.

However, these rotating triboelectric nanogenerators can only harvest rotational energy with a constant rotation direction, and cannot harvest mechanical energy generated by swings or vibrations with constantly changing directions.

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