Frictional nano-generator for collecting vibration energy and vibration sensor

A nano-generator and vibration energy technology, applied in friction generators, instruments, measuring devices, etc., can solve problems such as high threshold output power, increase system volume and quality, unfavorable system integration applications, etc., and achieve excellent output electrical performance Effect

Inactive Publication Date: 2017-04-26
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the power management circuit not only requires the friction generator to have a higher threshold output power due to its own power consumption, but also significantly increases the volume and quality of the entire system, which is not conducive to system integration, wearables, and applications in special environments.

Method used

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  • Frictional nano-generator for collecting vibration energy and vibration sensor
  • Frictional nano-generator for collecting vibration energy and vibration sensor
  • Frictional nano-generator for collecting vibration energy and vibration sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The friction nano generator for collecting vibration energy provided by this embodiment, for its typical structure, see figure 1 with figure 2 , Including a supporting member 1, a vibrating power generation membrane 3 and several power generating units 4, wherein the supporting member 1 is provided with a cavity 2; the vibrating power generation membrane 3 is provided at the opening of the cavity 2, and the vibrating power generation membrane 3 includes an electrode layer. The electrode layer is electrically connected to the ground; a number of power generation units 4 are arranged in the cavity 2; under the action of vibration, the vibrating power generation film 3 vibrates, and the power generation unit 4 collides with the vibration power generation film 3, and charges are induced in the electrode layer. A current is formed between the electrode layer and the ground, which can provide power to the load or serve as a vibration sensing signal.

[0044] In this embodiment, ...

Embodiment 2

[0065] The friction nano generator for collecting vibration energy provided by this embodiment, for its typical structure, see image 3 , Including a support member 1, two vibration power generation membranes 3 and 5, and several power generation units 4, wherein the support member 1 is provided with a cavity 2, which is a through hole including two upper and lower openings; the vibration power generation membrane 3 and 5 are respectively arranged at the upper and lower openings, the vibrating power generation membranes 3 and 5 both include electrode layers, and the electrode layers of the two vibrating power generation membranes 3 and 5 are electrically connected to each other; a number of power generation units 4 are set in the cavity 2; Under the action of vibration, the vibration generating film 3 and / or 5 vibrates, and the generating unit 4 collides with the vibration generating film 3 and / or 5. Under the action of electrostatic induction, a current is formed between the two...

Embodiment 3

[0073] For the typical structure of the friction nanogenerator for collecting vibration energy of this embodiment, see Figure 5 with Image 6 , Including a supporting member 1, a vibrating power generation membrane 3 and a number of power generation units 4. The only difference from the first and second embodiments is that the supporting member 1 includes a plurality of cavities 2.

[0074] Image 6 It is a three-dimensional schematic diagram of a typical structure of the power generation unit 4 in the cavity of the supporting member 1.

[0075] A plurality of cavities 2 may be distributed in an array in the supporting member. Preferably, the plurality of cavities are cylindrical through holes, especially cylindrical through holes, and the height of each cavity may range from 0.1 cm to 100 cm. The diameter of each cavity is 4mm-20cm.

[0076] Generally, the voltage of the friction nanogenerator is higher and the current is lower. The structure of this embodiment connects multiple g...

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Abstract

The invention discloses a frictional nano-generator for collecting vibration energy, and the nano-generator comprises a plurality of power generation units, a vibration power generation membrane, and a supporting part, wherein the supporting part is provided with a cavity. The vibration power generation membrane is disposed at the opening of the cavity, and comprises an electrode layer. The electrode layer is electrically connected with a conductive object or an isoelectric level. The plurality of power generation units are disposed in the cavity. The vibration power generation membrane vibrates under the vibration effect, and the power generation units collide with the vibration power generation membrane, and form induction in the electrode layer to generate charges. The nanp-generator of the above structure can collect the vibration energy at high and low frequency, presents excellent output electric performances, and can continuously drive various types of wearable electronic equipment without a big-size energy management circuit.

Description

Technical field [0001] The invention relates to the field of energy conversion, in particular to a generator and a vibration sensor that convert mechanical vibration energy into electrical energy. Background technique [0002] At present, with the exhaustion of fossil energy, the problem of energy shortage is becoming more and more serious. Various researches on the development of new energy and the utilization of renewable energy are being carried out, and the search for sustainable green energy is becoming more and more urgent. At the same time, the application of daily electronic small electronic equipment is developing rapidly, such as wearable electronic equipment, smart manufacturing, health monitoring and sports tracking equipment, as well as application equipment in special environments such as underwater motion detection, communication, navigation and Its tracking and other equipment. [0003] Although there are some substantial breakthroughs in how to solve the current e...

Claims

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Application Information

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IPC IPC(8): H02N1/04G01H11/06
CPCH02N1/04G01H11/06
Inventor 王中林奚伊王杰
Owner BEIJING INST OF NANOENERGY & NANOSYST
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