A micro-deformation piezoelectric energy collection device and collection method applied to road surfaces

Abstract

The invention discloses a micro-deformation piezoelectric energy collection device and collection method applied to road surfaces. The device includes a box body, an elastic rubber block arranged in the box body, and a piezoelectric module arranged in the elastic rubber block; the piezoelectric module includes Platen, cantilever piezoelectric modules, and stacked piezoelectric modules. The pressing plate is arranged in the elastic rubber block, and the pressing plate is provided with a rotating shaft. When the pressing plate rotates around the rotating shaft, the end of the pressing plate close to the piezoelectric module of the cantilever beam will squeeze the piezoelectric module of the cantilever beam to generate voltage; the pressing plate is far away from the cantilever beam One end of the piezoelectric module is pressed against the stacked piezoelectric modules to generate a voltage. In the present invention, the voltage can be generated by simultaneously pressing the cantilever beam piezoelectric module and the stacked piezoelectric module by the pressing plate, which can more effectively convert mechanical energy into electrical energy, and the generated electrical energy can be sent to the intelligent traffic information after being processed by the energy collection circuit. The wireless sensing devices in the harvesting system are powered, and the energy harvesting efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of energy recovery and utilization, in particular to a micro-deformation piezoelectric energy collection device and collection method applied to road surfaces. Background technique [0002] As the most important transportation facility, roads play an important role in promoting economic development and providing convenience for people's production and life. The road carries the direct action of countless vehicles and pedestrians every day. The mechanical energy of these actions is usually reflected in the vibration, deformation, wear, cracking and other diseases of the road surface, and is finally dissipated in the environment in the form of heat energy. At this time, if the piezoelectric effect of piezoelectric materials can be used to convert mechanical energy into electrical energy, and the waste energy can be collected and used to power the sensing nodes of traffic sensors, a self-powered piezoelectric t...

AI Technical Summary

Problems solved by technology

Due to the need to ensure the comfort and safety of the vehicle, as well as the service life and working strength of the road, the piezoelectric energy harvesting device for the road needs to meet the characteristics of large load and small deformation. These two structures are directly applied to the energy in the road surface. The collection effect is not good

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