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A cantilever pulse generator

A generator and cantilever technology, applied in the direction of friction generators, etc., can solve the problems of small output power density, large volume, narrow applicability, etc., and achieve the effects of improving output power, simple preparation method and simple structure

Active Publication Date: 2015-12-02
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electrostatic induction generators that have been invented have shortcomings such as large volume and narrow applicability, while electromagnetic induction generators and piezoelectric generators generally have defects such as complex structures, special requirements for materials, and high cost.
Electrostatic pulse generators have shortcomings in miniaturization and light weight, and the output power density is small, which cannot meet the needs of various vibration mechanical energy collection

Method used

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  • A cantilever pulse generator
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  • A cantilever pulse generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] see figure 1 , the cantilever type pulse generator comprises a first cantilever 100, a second cantilever 200 and a third cantilever 300, at least the second cantilever 200 is elastic in the three cantilever, the first cantilever 100, the second cantilever 200 and the third cantilever 300 have respectively One end is fixed; wherein, the lower surface of the first cantilever 100 is provided with a first electrode layer 101, and the lower surface of the first electrode layer 101 is contacted with a first friction layer 102; the upper surface of the second cantilever 200 is provided with a second electrode Layer 201, the upper surface of the second electrode layer 201 is in contact with the second friction layer 202, and the upper surface of the second friction layer 202 is set opposite to the lower surface of the first friction layer 102; the lower surface of the second cantilever 200 is set There is a third electrode layer 203, the lower surface of the third electrode lay...

Embodiment 2

[0085] The first cantilever and / or the third cantilever can be a cantilever made of a conductive material. Here, the structure of the generator in this embodiment is described in detail by taking a cantilever made of a conductive material as an example for the first cantilever and the third cantilever. see Figure 4 , the first cantilever 111 is a cantilever made of conductive material, the lower surface of the first cantilever is contacted with the first friction layer 112; the upper surface of the second cantilever 200 is provided with the second electrode layer 201, and the upper surface of the second electrode layer 201 The second friction layer 202 is arranged in contact, and the upper surface of the second friction layer 202 is arranged opposite to the lower surface of the first friction layer 112; the lower surface of the second cantilever 200 is provided with a third electrode layer 203, and the third electrode layer 203 is provided with a third friction layer 204 in c...

Embodiment 3

[0090] Conductive material and insulator or semiconductor material contact or separate after rubbing, and charge transfer can occur on the surface of the two. In embodiment one or embodiment two, the first friction layer or the second friction layer can adopt conductive material, and the third friction layer Layer or the fourth friction layer can also use conductive materials. In this embodiment, a conductive cantilever is used to replace the friction layer in the second embodiment to further simplify the structure of the cantilever pulse generator.

[0091] Combine below Image 6 with Figure 7 , specifically introduce the structure of the generator in this embodiment.

[0092] see Image 6 The first friction layer is made of a conductive material, which can be replaced by a conductive first cantilever 111 , the second friction layer 212 is an insulator or semiconductor, and the upper surface of the second friction layer 212 is opposite to the lower surface of the first ca...

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PUM

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Abstract

The invention provides a cantilever type impulse generator, which comprises a first cantilever, a second cantilever and a third cantilever, wherein one ends of the first cantilever, the second cantilever and the third cantilever are fixed, the lower surface of the first cantilever is provided with a first electrode layer and a first friction layer; the upper surface of the elastic second cantilever is provided with a second electrode layer and a second friction layer, and the lower surface is provided with a third electrode layer and a third friction layer; the upper surface of the third cantilever is provided with a fourth electrode layer and a fourth friction layer; when external forces such as vibration and the like act on the cantilever, the second cantilever vibrates between the first cantilever and the third cantilever, at least one part of the upper surface of the second friction layer is enabled to be contacted with or separate from the lower surface of the first friction layer, at least one part of the lower surface of the third friction layer is enabled to be contacted with or separate from the upper surface of the fourth friction layer, and impulse electric signals are outputted between the first electrode layer and the second electrode layer and / or between the third electrode layer and the fourth electrode layer. The generator provided by the invention can convert vibration mechanical energy formed by sea waves, highways, bridges and the like into electric energy.

Description

technical field [0001] The invention relates to a generator, in particular to a cantilever pulse generator which converts mechanical energy generated by vibration into electrical energy. Background technique [0002] Vibration mechanical energy is a widely existing form of energy, including ocean waves, engine vibration, highway, bridge and tunnel vibration when cars pass by, and human body movements such as walking, running, twisting, etc., all of which will generate vibration mechanical energy. Although vibrational mechanical energy exists widely, it is often neglected and utilized without effective means of collection, and is usually wasted. [0003] At present, the principles used by generators that convert mechanical energy into electrical energy mainly include electrostatic induction, electromagnetic induction, piezoelectric properties of special materials, and electrostatic pulse generators. However, the electrostatic induction generators that have been invented have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N1/04
Inventor 杨维清陈俊王中林
Owner BEIJING INST OF NANOENERGY & NANOSYST