Sliding friction generator, power generation method and vector displacement sensor

A displacement sensor and sliding friction technology, applied in the direction of triboelectric generators, using electric/magnetic devices to transmit sensing components, etc., can solve the problems of increased device manufacturing cost, easily damaged triboelectric materials, and complex structure of sliding friction generators, etc. Achieve the effect of prolonging the service life and simplifying the structure

Active Publication Date: 2014-12-31
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the sliding friction generator with this structure is complex, which leads to an increase in the cost of the device. In addition, the existing sliding friction generator requires that the thickness of the triboelectric material must be within a small-scale thickness range, and the typical thickness is less than 100 microns. The electrical material is very thin, which will make it very easy for the two triboelectric materials to damage the triboelectric material during the sliding friction process, resulting in the failure of the generator to continue to work normally
Therefore, the structure of the existing sliding friction generator greatly hinders the development and application of this friction generator

Method used

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  • Sliding friction generator, power generation method and vector displacement sensor
  • Sliding friction generator, power generation method and vector displacement sensor
  • Sliding friction generator, power generation method and vector displacement sensor

Examples

Experimental program
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Effect test

Embodiment 1

[0100] Example 1: Preparation of Sliding Friction Generator

[0101] Cut a polytetrafluoroethylene with a length of 10cm×width 5cm×thickness 1mm as the friction material layer of the device, and fix a piece of aluminum foil with a length of 10cm×width 5cm×thickness 25μm on a plexiglass material substrate of the same size with a copper wire Connect the Al foil and connect it to a resistor, and the other end of the resistor is grounded. Put the cut polytetrafluoroethylene on the surface of the aluminum foil. Under the action of external force, when the polytetrafluoroethylene and the aluminum foil slide relative to each other and the friction area changes, the voltmeter connected to the two ends of the resistor will have a corresponding electrical signal output, indicating that it can Convert the mechanical energy of external force into electrical energy for power generation.

Embodiment 2

[0102] Example 2: Preparation of vector displacement sensor based on sliding friction generator

[0103] A plexiglass with a length of 10 cm x a width of 10 cm x a thickness of 1.59 mm was cut by a laser as a substrate material of a sensor using a generator. Using the method of magnetron sputtering, 16 aluminum electrode strips were fabricated on the upper surface of the substrate as sub-electrodes, the width of the sub-electrodes was 10mm, and the length was 3cm. The distance between the electrode strips is 2 mm. The 16 sub-electrodes are distributed in four directions to form a cross structure in groups of 4. The 4 sub-electrodes in each group are arranged in parallel and equidistant, as shown in Figure 9 shown. Connect each aluminum electrode strip with a copper wire, and connect it to a voltage divider resistor R, the other end of the voltage divider resistor is grounded, and an output terminal 01...15, 16 is drawn between each electrode strip and the voltage divider res...

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Abstract

The invention provides a sliding friction generator and a power generation method. The generator comprises a friction layer and an electrode layer which is electrically connected to an equal potential, wherein when the upper surface of the electrode layer and the lower surface of the friction layer slide relatively under the action of external force, the friction area changes in a sliding process, so that an electric signal can be output between the electrode layer and the equal potential. Correspondingly, the invention further provides a vector displacement sensor applied to the sliding friction generator. The electrode layer consists of a plurality of sub-electrodes. When a moving object slides on the electrode layer, the position, the moving direction and the moving distance of the moving object can be detected according to the electric signal output between the sub-electrodes and the equal potential without providing any power supply for the sensor.

Description

technical field [0001] The invention relates to a generator, in particular to a sliding friction generator for converting mechanical energy into electrical energy, a power generation method, and a vector displacement sensor using the sliding friction generator. Background technique [0002] The working principle of sliding triboelectric generators is based on the mutual friction of two different triboelectric materials to generate surface charge transfer, however, all reported sliding triboelectric generators are based on the deposition of conductive metals on the surface of triboelectric thin film materials as electrode layers , so as to realize the external output of electric energy. The structure of the sliding friction generator with this structure is complex, which leads to an increase in the cost of the device. In addition, the existing sliding friction generator requires that the thickness of the triboelectric material must be within a small-scale thickness range, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N1/04G01D5/12
CPCH02N1/04
Inventor 王中林杨亚张虎林
Owner BEIJING INST OF NANOENERGY & NANOSYST
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