Shape change type footwear energy harvesting device

Abstract

A shape change type footwear energy harvesting device is disclosed. Two identical lower magnet yokes are mounted on a bottom part of an inner side of a pedestal, the lower magnet yokes are fixed on alower bottom and a side wall of the pedestal, each of the lower magnet yokes is provided with two cylindrical installation shafts, an enameled copper wire coil is mounted on each installation shaft ofeach lower magnet yoke, a pair of wire coils are used as lead-out ends for electric energy collection, two lead-out ends are connected with an energy collection circuit, two ends of permanent magnetsare provided with round holes, installation shafts of the lower magnet yokes are mounted in round holes of the two permanent magnets, the permanent magnets are positioned above the wire coils, a nonmagnetic shape change rubber mat is embedded into a groove jointly formed by two lower magnet yokes and the pedestal, an upper part of the shape change rubber mat is provided with a rectangular blind hole, a bottom part of the rectangular blind hole is provided with a protruding stripe, an upper magnet yoke is mounted in a rectangular blind hole in the upper part of the shape change rubber mat, andthe upper magnet yoke is in contact with the protruding stripe of the bottom part of the rectangular blind hole of the shape change rubber mat. The shape change type footwear energy harvesting deviceis high in energy conversion efficiency, compact and reliable in structure, and simple and convenient in installation.

Description

technical field [0001] The invention belongs to shoes, and relates to the field of electromagnetic energy harvesting devices in smart wear, in particular to a device that is placed in the sole of a shoe and collects energy through the extrusion of the sole by human walking. Background technique [0002] People are walking every day, and the human body uses its own biological energy to do its own exercise. The "walking volume" of healthy people is at least 4,000 steps per day. This activity volume is the basic amount of exercise for people. To promote health and prevent various chronic diseases, the standard should be raised to 7,000 steps. [0003] When a person walks, when the shoe hits the ground, the ground and the foot press against the sole; when the shoe leaves the ground, the squeeze disappears. Therefore, it has become a focus of research and invention to take certain measures to collect the mechanical energy of this periodic extrusion process and convert it into el...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the disadvantages of low energy conversion efficiency, poor structural reliability, and troublesome installation of existing shoes with power generation functions, the present invention provides a deformable shoe with high energy conversion efficiency, compact and reliable structure, and easy installation. Energy harvesting device; no moving parts, only elastic deformation parts or micro-movement parts, only through small deformation and micro-movement to obtain large changes in the magnetic field, compact and reliable structure; realize closed magnetic circuit, through the on-off collection of closed magnetic circuit Energy, high energy conversion efficiency

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