A Karman piezoelectric suspension energy feed device

Abstract

The invention relates to a Kaman piezoelectric suspension fork energy feedback device which is used for converting the energy of an air eddy behind a shock absorber of a suspension fork when an automobile drives into electric energy. According to the Kaman piezoelectric suspension fork energy feedback device disclosed by the invention, a cantilever beam is mounted on the outer wall of the shock absorber of the automobile suspension fork; a piezoelectric ceramic diaphragm is fixed to the cantilever beam; a Karman vortex street principle is utilized, so that when current air flows through the cylindrical shock absorber, vortex wake streams are alternately generated on two sides of the back of the cylindrical shock absorber, the vortex wake streams generate pressure intensity in alternate changes on the piezoelectric ceramic diaphragm, after piezoelectric ceramics are pressed, the electrodynamic force is generated, and after the voltage transformation of a wave filter and a voltage adjuster, the electricity is supplied to an accumulator of the automobile. According to the Kaman piezoelectric suspension fork energy feedback device disclosed by the invention, the flowing of the air at the suspension fork in the driving process of the automobile is completely used for electricity generation, other energy sources do not need to be consumed, and the Kaman piezoelectric suspension fork energy feedback device is high in reliability, energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to a Karman piezoelectric suspension energy feeding device, which belongs to the technical field of energy saving and emission reduction of automobiles. technical background [0002] Suspension is the general term for all force transmission devices between the frame and the axle (or wheel). During the movement of the car, the flowing air will flow longitudinally across the upper and lower surfaces of the car, which also includes the suspension. This is partly due to The energy generated by the air flow has always been regarded as the running resistance of the car. At present, there are many technologies to reduce the running resistance from the perspective of reducing the drag coefficient of the car so as to reduce the fuel consumption. Under the premise, this part of airflow energy is recovered. [0003] The Karman (vortex street) principle is the theoretical basis for this vortex stability found by the German scientist Karman f...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: aiming at the air vortex at the suspension shock absorber during the running of the automobile, design a mechanism with simple and reliable structure and small additional weight, which can recover more vortex wake energy; Movement and other moving parts of the car chassis, such as wheels, etc. interfere with the air vortex, and maintain the stability of the charging voltage

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