▎ 摘　　要

NOVELTY - Piezoelectric insole device comprises a top protective layer, a piezoelectric layer (3) and a bottom supporting layer. The top protective layer includes a sweat-absorbing sterilizing layer (1) and a rubber protective layer (2). The piezoelectric layer is adhered below the top protective layer. The piezoelectric layer is divided into a generating module and a control module. The generating module includes a piezoelectric plate, a rubber packaging layer, a copper wire. The upper and lower ends of the piezoelectric plate are connected with the copper wire. The copper wire is attached with an insulating layer. The bottom supporting layer is adhered below the piezoelectric layer, which is a rubber material. USE - Piezoelectric insole device useful in the field of energy conversion. Can also be used in a human body movement process. ADVANTAGE - The device: can realize the energy conversion of mechanical plantar pressure generated in the walking process of people into electric energy; adopts the three-dimensional (3D) printing technology to make the insole more adhered to the sole shape; can make the piezoelectric material generate more deformation; can improve the energy conversion efficiency of mechanical energy-electric energy; adopts the grapheme- polydimethylsiloxane (G-PDMS) by piezoelectric material, which is more light and soft, stable function and no toxic to the body for a long time; can increase the contact material and sole of the sole; can perfectly wrap the sole; and is soft and comfortable. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the structure of the graphene-polydimethylsiloxane (G-PDMS) piezoelectric insole device based on three-dimensional (3D) printing technology. Sweat absorbing and sterilizing layer (1) Rubber protective layer (2) Piezoelectric layer (3) Rubber supporting layer (4)