Composite nano generator based on piezoelectric friction electromagnetism

A nano generator and generator technology, applied in the field of micromachining, can solve the problems of small output power, etc., and achieve the effects of increasing output, increasing effective friction area, and high yield

Inactive Publication Date: 2013-06-26
PEKING UNIV
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Problems solved by technology

Utilizing the high power of the piezoelectric nanogenerator, complementing the advantages of the high voltage of the frictional nanogenerator and the continuous high output of the electrom...

Method used

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  • Composite nano generator based on piezoelectric friction electromagnetism
  • Composite nano generator based on piezoelectric friction electromagnetism
  • Composite nano generator based on piezoelectric friction electromagnetism

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Embodiment Construction

[0021] The embodiments of the present invention will be further described in detail below in conjunction with the drawings and specific implementation methods.

[0022] Figure 1-Figure 9 The specific structure of a composite nanogenerator based on piezoelectric triboelectricity provided by the present invention is described.

[0023] figure 1 Is a general schematic diagram of the generator structure. figure 2 It is a cross-sectional view of the composite nanogenerator based on piezoelectric triboelectromagnetic of the present invention, and its section position is the same as figure 1 A-B line in the middle is the same. see figure 2 , the present invention proposes a composite nanogenerator based on piezoelectric triboelectricity, comprising: a casing 1 and a rotor 2 . At corresponding positions on the outer side of the rotor 2, a pair of protruding buckle-type friction layers 4 are arranged in the axial direction. A pair of protruding buckle-type piezoelectric layers...

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Abstract

The invention relates to a composite nano generator based on piezoelectric friction electromagnetism. A pair of protruded buckling cover type friction layers are arranged at the corresponding positions on the outer side of a rotor; a pair of protruded buckling cover type piezoelectric layers are arranged at the corresponding positions on the inner side of a shell; and a pair of corresponding magnetic electrodes are arranged on the inner side of the shell. A high-electric-quantity characteristic of a piezoelectricity-based energy collection mode, a high-voltage characteristic of a friction-based energy collection mode and a continuous high-output characteristic of a electromagnetism-based energy collection mode are combined. A micro nano array structure is prepared on the surface of a friction material, so that the friction efficiency is greatly improved and an effective friction area is greatly enlarged, and the output is greatly increased. By rotation of the rotor, the piezoelectric output, the friction output and the electromagnetic output are realized, so that wind energy and water energy can be easily collected; and a novel method for collecting energy from the natural world can be provided. The processing technology is simple, low in cost, high in yield and favorable for industrialization.

Description

technical field [0001] The invention relates to the technical field of micromachining, in particular to a composite nanogenerator based on piezoelectric triboelectricity. Background technique [0002] Since the beginning of the 21st century, with the rapid growth of population and the rapid development of social economy, energy issues have become the shackles restricting the development of human society. With the depletion of traditional fossil fuels (coal, oil and natural gas, etc.) with limited reserves, researchers at home and abroad have turned their attention to various new types of energy. Proposed, that is, it has received extensive and continuous attention, and is known as the leader leading the development of micro-nano energy, and it is an effective means to solve the energy crisis. In 2006, the research group of Professor Wang Zhonglin from the Georgia Institute of Technology used zinc oxide nanowires to convert mechanical energy into electrical energy, and succe...

Claims

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Application Information

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IPC IPC(8): H02N1/04
Inventor 张晓升张海霞韩梦迪孙旭明朱福运刘雯
Owner PEKING UNIV
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