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Electrostatic generator, manufacturing method thereof and self-driven sensing system

A generator and electrostatic technology, applied in the direction of electrostatic generator/motor, generator/motor, electrical components, etc., can solve the problem of insufficient contact between two plates, increase the effective contact area, increase the surface charge density, and improve The effect of charge density

Active Publication Date: 2013-10-23
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electrostatic generator, which can overcome the problem of insufficient contact between the two plates that generate static electricity due to the introduction of the isolation layer in the existing electrostatic generator

Method used

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  • Electrostatic generator, manufacturing method thereof and self-driven sensing system
  • Electrostatic generator, manufacturing method thereof and self-driven sensing system
  • Electrostatic generator, manufacturing method thereof and self-driven sensing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] see figure 1 , the electrostatic generator in this embodiment includes: the curved flexible substrate includes an organic substrate 1 and a bending dynamic layer 2, and the organic substrate 1 forms an arched bend under the action of the bending dynamic layer 2, and the outer surface of the substrate ( Convex surface) prepared with an electrode layer 4, a polymer film layer 3 attached to the inner surface of the substrate (depressed surface), and a metal film 5 pasted on the edge of the polymer film layer 3, preferably a metal film 5 The area is equivalent to the area of ​​the polymer film 3, that is, the area is basically the same. After the edge of the metal film 5 is pasted with the edge of the polymer film 3, an arched cavity is formed between the metal film 5 and the polymer film 3 6. The distance between the edge of the metal film 5 and the polymer film 3 is small, and the distance between the center is relatively large; wherein, the polymer film layer 3 and the m...

Embodiment 2

[0065] The difference between this embodiment and Embodiment 1 is that micro-nanostructures are formed on the surface of the polymer film layer and / or metal film forming the arched cavity, and the micro-nanostructure faces the surface formed by the polymer film layer and the metal film. The cavity can effectively increase the contact area of ​​the polymer film layer and the metal film layer when they are in contact with each other under the action of external force. The micro-nano structure can be prepared on the opposite surfaces of the polymer film layer or the metal film, and the micro-nano structure can only be prepared on the surface of one film. This nanostructure can be a linear, cubic, or quadrangular pyramid-shaped array prepared by methods such as photolithography. The size of each such unit in the array is on the order of nanometers to micrometers. The shape should not limit the scope of the invention.

[0066] Taking the method of forming micro-nano structures on ...

Embodiment 3

[0072] Introduce the preparation method of the electrostatic generator of the present invention in this embodiment, see Figure 5 As shown in the flowchart, the preparation method of the electrostatic generator includes:

[0073] Step S1, providing a curved flexible substrate;

[0074] Step S2, attaching the polymer film to the inner surface of the substrate;

[0075] Step S3, preparing an electrode layer on the outer surface of the substrate;

[0076] Step S4, using insulating glue to glue the edge of the polymer film to the edge of the metal film, so that an arched cavity is formed between the polymer film and the metal film.

[0077] The flexible substrate can be a single-layer flexible material, such as curved silicone, or a double-layer composite substrate. For two-layer composite substrates, curved flexible substrates are available, including:

[0078] Step S11, providing a planar organic substrate;

[0079] Step S12, using a high-temperature deposition method to pr...

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Abstract

The invention provides an electrostatic generator, which comprises a bent flexible base, a polymer thin film layer and a metal thin film, wherein the outer surface of the base is provided with an electrode layer, the polymer thin film layer is pasted on the inner surface of the base, the metal thin film is pasted with the edge of the polymer thin film layer, and an arched cavity is formed between the metal thin film and the polymer thin film. Correspondingly, the invention also provides a manufacturing method of the electrostatic generator and a self-driven sensing system which uses the electrostatic generator. As the polymer thin film layer and the metal thin film have different electron accepting abilities, and moreover the arched cavity structure is formed between the polymer thin film layer and the metal thin film, the surface charge density at the interface when the polymer thin film layer is contacted with the metal thin film is increased, the charge separation process of the metal thin film and the polymer thin film is effectively actuated, and the output performance of the electrostatic nano generator can be improved.

Description

technical field [0001] The invention relates to a generator, in particular to an electrostatic generator which converts mechanical energy into electrical energy, a preparation method thereof, and a self-driven sensing system using an electrostatic nanometer motor. Background technique [0002] Today's electronic device industry is developing rapidly and tends to be wireless, portable and multi-functional, which requires the device to have a power source that can work independently and for a long time. Because there are many forms of mechanical energy in our life and surrounding environment, such as vehicle movement, tide, human body motion, etc., the list is too numerous to list. Since 2006, nano generators based on nano piezoelectric materials have come out, which can collect mechanical energy in the environment and convert it into electrical signals, providing a solution for the power supply of small electronic devices (especially implanted electronic devices). A promisin...

Claims

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Application Information

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IPC IPC(8): H02N1/00B82Y40/00
Inventor 王中林王思泓林龙
Owner BEIJING INST OF NANOENERGY & NANOSYST
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