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A kind of intelligent insole and its preparation method and application

A technology of smart insoles and sensing electrodes, which is applied in the field of biomedical engineering, can solve the problems of low power generation efficiency, poor endurance of power supply equipment, and large volume, and achieve the effect of simple structure

Active Publication Date: 2022-02-22
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a smart insole, smart shoes and related systems with a flexible pressure sensor with a large range and a high-performance frictional nanogenerator, to solve the problem of poor battery life, large volume, and low power generation efficiency of the power supply equipment in the smart insole The problem and the current problem that the pressure sensor is difficult to integrate into the insole

Method used

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  • A kind of intelligent insole and its preparation method and application
  • A kind of intelligent insole and its preparation method and application
  • A kind of intelligent insole and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0059] A kind of intelligent insole 100, its structure diagram is as follows Figure 1-Figure 2 As shown, the smart insole includes a flexible circuit board 1 , a sensing layer 31 and an encapsulation part 2 wrapping the flexible circuit board 1 and the sensing layer 31 . The flexible circuit board 1 includes a flexible substrate 10, the flexible substrate 10 has a first surface 101 and a second surface 102 oppositely arranged, the first electrode array 11 is arranged on the first surface 101, and the first electrode array 11 is arranged on the second surface 102. The sensing electrode layer 12 ; the encapsulation part 2 includes a first encapsulation layer 21 and a second encapsulation layer 22 oppositely disposed, the first encapsulation layer 21 covers the first surface 101 , and the second encapsulation layer 22 covers the second surface 102 . The sensing layer 31 is correspondingly arranged on the first electrode array 11, that is, along the direction from the flexible su...

Embodiment 2

[0073] See Figure 5 , a self-powered gait information collection system 1000, including the smart insole 100 described in Embodiment 1, a flow filter circuit 500, an energy supply module 600, a processing module 200, a wireless transmission module 300 and a host computer 400. Wherein, the energy supply module 600 includes an energy storage element 601, and the friction nanogenerator 4 of the smart insole 100 is connected to the input end of the rectification and filtering circuit 500 through the wire drawn from its first induction electrode layer 12, and the other input of the rectification and filtering circuit 500 terminal ground (see Figure 6 ), the output end of the rectification and filtering circuit 500 is connected to the energy storage element 601, and the alternating current generated by the friction nanogenerator 4 is converted into a direct current after passing through the rectification and filtering circuit 500, and is stored in the energy storage element 601. ...

Embodiment 3

[0080] A method for preparing a smart insole, the difference from Example 1 is that in step (2), when the flexible circuit board 1 is placed in a custom-made mold, the first electrode array 11 faces upward, and the first electrode array 11 faces upward. Barrier columns are placed on each electrode of the array 11, and then the encapsulation portion slurry is poured into the mold for foaming; in step (3), the configuration process of the sensing layer slurry is as follows: sucrose with a particle size of about 150 μm and Carbon nanotubes (diameter 3-80nm, length 5-30 μm) were mixed and stirred evenly according to the mass ratio of 85:5 to obtain mixed powder; polydimethylsiloxane elastomer (Sylgard 184, Dow Corning) was dissolved to In ethyl acetate solvent (the mass ratio of polydimethylsiloxane elastomer to ethyl acetate solvent is 1:2.4), stir and mix evenly under airtight conditions and place it for more than 24h to obtain a mixed solution; then mix the powder and the mixed...

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Abstract

The invention discloses a smart insole, which comprises a flexible circuit board, a sensing layer with a porous structure and an encapsulation part covering them. The first sensing electrode layer on the second surface opposite to one surface, the packaging part includes a first packaging layer covering the first surface and a second packaging layer covering the second surface, along the direction from the flexible substrate to the first packaging layer, The first electrode array and the sensing layer are sequentially stacked and embedded in the first encapsulation layer. The first sensing electrode layer and the second encapsulation layer are used to form a triboelectric nanogenerator, and the flexible substrate, the first electrode array and the sensing layer are used to form a flexible pressure sensor array. The smart insole has a simple structure, low cost, and high wearing comfort. It can not only realize self-supply, but also detect the pressure on the sole of the human foot. The invention also provides a preparation method of the smart insole, smart shoes, and a self-powered gait information collection system.

Description

technical field [0001] The invention relates to the technical field of biomedical engineering, in particular to an intelligent insole and its preparation method and application. Background technique [0002] At present, common smart shoes usually have a built-in battery or a power generating device. The built-in battery is limited by the volume, and the battery capacity often cannot reach a long-term battery life; Generator) is not only complex in structure, bulky, high in cost, but also low in power generation efficiency, and the sole of the shoe is greatly deformed, which is prone to discomfort when walking. In addition, it is very difficult to integrate the attitude sensor (such as pressure sensor) and the above-mentioned power generation device in the existing smart shoes into the insole, and most of them are made of hard materials, and the comfort is low. [0003] Therefore, it is necessary to provide an intelligent insole and system with low cost, simple structure, hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A43B3/34A43B3/42A43B3/44A43B3/48A43B17/00H02N1/04H02J7/32H05K1/11
CPCA43B17/00A43B17/006H02N1/04H02J7/32H05K1/118A43B3/38A43B3/34
Inventor 彭争春黄画怿王子娅管晓张琦孟博
Owner SHENZHEN UNIV
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