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Combinable electrostatic kinetic energy collector and preparation method thereof

A collector and electrostatic technology, applied in the field of electrostatic kinetic energy collectors and their preparation, can solve the problems of structural adjustment in applications that cannot be applied, cannot make full use of kinetic energy collection space, and reduce kinetic energy collection efficiency, etc., so as to improve kinetic energy collection efficiency, The effect of expanding the structural diversity and making full use of the installation space

Active Publication Date: 2020-08-18
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing kinetic energy harvesters use a fixed structure, which cannot be adjusted according to the actual application, resulting in the inability to make full use of the kinetic energy collection space and reduce the efficiency of kinetic energy collection. It can be said that the structure of the kinetic energy harvester determines its final energy. conversion efficiency, and the device structure with good integrability can be well adapted to various applications

Method used

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  • Combinable electrostatic kinetic energy collector and preparation method thereof
  • Combinable electrostatic kinetic energy collector and preparation method thereof
  • Combinable electrostatic kinetic energy collector and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A kinetic energy harvester with a V-shaped groove and a polymer film whose upper surface is covered with an upper electrode. The preparation process is as follows:

[0061] (1) Select a suitable polymer material (such as PTFE, FEP, PET, PE, PP, etc.), and make a highly elastic polymer film 5 by casting, embossing, and casting. The polymer film 5 is a wavy structure;

[0062] (2) Cover a layer of conductive electrodes on one surface of the polymer film 5 by vacuum evaporation, which is the upper electrode 4, and the upper electrode 4 and the polymer film 5 jointly form an electret film;

[0063] (3) inject real negative charges to the free surface of the polymer film 5 not covering the electrode by means of corona polarization, contact charging, ion implantation or electron beam implantation;

[0064] (4) Select a thermoplastic material (such as PET, PE, PVC, PP, TPV, PC, TPU, etc.) or metal material (Al, Au, stainless steel, etc.), and make the groove 7 through the pro...

Embodiment 2

[0083] The kinetic energy harvester with arc-shaped grooves and the upper surface of the polymer film covered with the upper electrode is similar to the preparation process of the single-structure kinetic energy harvester in Example 1, except that the groove 7 is an arc-shaped structure in step (4). Specific as Figure 5 shown. Similarly, when the kinetic energy harvester is subjected to external pressure (or vibration excitation), such as Figure 6 shown in the compression deformation, and by stacking up and down and tiling left and right, multiple kinetic energy harvesting devices can be combined together to obtain the following Figure 7 In the combined kinetic energy harvester shown, among the two single-structure kinetic energy harvesters stacked up and down, the arc-shaped groove of the upper kinetic energy harvester can also play the role of replacing the half-moon-shaped support member, so this combination is further improved. The volume of the whole combined kinetic...

Embodiment 3

[0095] The kinetic energy harvester with V-shaped grooves and the lower surface of the polymer film covering the lower electrode, the preparation process is as follows:

[0096] (1) Select a suitable polymer material (such as PTFE, FEP, PET, PE, PP, etc.) to make a polymer film 5;

[0097] (2) Cover a layer of conductive electrodes on one surface of the polymer film 5 by vacuum evaporation, which is the lower electrode 6, and the lower electrode 6 and the polymer film 5 jointly form an electret film;

[0098] (3) inject real negative charges to the free surface of the polymer film 5 not covering the electrodes by methods such as corona polarization, contact charging, ion implantation or electron beam implantation;

[0099] (4) Select a thermoplastic material (such as PET, PE, PVC, PP, TPV, PC, TPU, etc.) to make the groove 7 through the processing procedure, and the groove 7 is a V-shaped structure;

[0100] (5) One side of the polymer film 5 covering the electrode with a rea...

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Abstract

The invention relates to a combinable electrostatic kinetic energy collector and a preparation method thereof. The kinetic energy collector comprises a panel, a half-moon-shaped supporting component,an electret film and a groove which are sequentially arranged from top to bottom, if the electret film is formed by covering the upper surface of a polymer film with an upper electrode, negative charges are injected into the lower surface of the polymer film, and the inner surface of the groove is covered with a lower electrode; and if the electret film is formed by covering a lower electrode withthe lower surface of a polymer film, negative charges are injected into the upper surface of the polymer film, and an upper electrode is arranged between the upper surface of the polymer film and thepanel. The panel is connected with the upper electrode through an elastic connecting component, the upper electrode and the lower electrode are respectively connected with an upper electrode lead anda lower electrode lead, and a plurality of kinetic energy collectors are turned over up and down and then are stacked and tiled left and right, so that the gapless combined kinetic energy collector can be obtained. Compared with the prior art, the combinable electrostatic kinetic energy collector can flexibly adapt to different occasions, the installation space is fully utilized, and the kineticenergy collection efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of kinetic energy collectors, in particular to a combinable electrostatic kinetic energy collector and a preparation method thereof. Background technique [0002] In recent years, with the development of economy and society, energy problems have become increasingly prominent. Kinetic energy is a common and easily obtained energy in the current environment. Various energy harvesting devices using electromagnetic, piezoelectric, and electrostatic effects can convert kinetic energy into electrical energy. , thus providing sustainable energy for low-power electronic devices and wireless network nodes. MEMS (Micro-Electro-Mechanical System, micro-electro-mechanical system) technology refers to the micro-electro-mechanical system technology that integrates micro-sensors, micro-actuators, signal processing and control circuits, and even interface circuits, communications and power supplies. In the research, the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18
CPCH02N2/186H02N2/22
Inventor 张晓青杨晓雅马星晨戴瑛贺鹏飞
Owner TONGJI UNIV
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