Combined-type vibrational energy acquisition system

Abstract

The invention discloses a combined-type vibrational energy acquisition system which adopts the structure that a solar panel is mounted at the upper end of a cantilever beam; a lead wire of the solar panel is connected with a gear motor; the shaft of the gear motor is connected with an eccentric mass block; the gear motor drives the eccentric mass block to rotate; the lower end of the cantilever beam is fixed on a base; a piezoelectric plate is stuck at the lower end 3 mm away from the base, of the cantilever beam; and electrical energy can be generated by the piezoelectric plate through the vibration of the cantilever beam. When a device adopting the system provided by the invention is placed in sunny days and vibration environments such as motor vehicle road side, swing of cantilever beam can be generated through vibration excitation caused by passing vehicles and solar excitation to allow the piezoelectric plate to generate electrical energy, so that the solar energy and environment vibration energy can be simultaneously converted into electrical energy for outputting. The system breaks through a conventional way that only one of the solar energy and the vibration is converted into the electrical energy, and adopts a combined action way of two energy sources to improve the electrical energy conversion and output efficiency.

Description

technical field [0001] The invention belongs to the field of new energy and power generation technology, and specifically relates to a method of utilizing structure optimization and resonance principles, as well as solar-driven motor eccentric excitation and piezoelectric power generation technology, to convert vibration energy under the background of road traffic, wind load and vibration excitation. method for electrical energy. Background technique [0002] Harvesting energy from various vibrations and motions is currently a research hotspot in the development of new energy technologies. For example, the state of Pennsylvania in the United States has invested heavily in research and development of this technology, and many busy supermarket parking lots in Europe have installed electric energy harvesting devices. The dynamic circuit board developed by a British company (J Sainsbury PLC) can generate 30 kilowatts of electricity in one hour, which can supply enough electrici...

AI Technical Summary

Problems solved by technology

[0003] Although vibration energy harvesting systems based on piezoelectric materials have potential applications, a very important question is: how much vibration energy can be harvested from vibrations such as high-speed roadsides, and whether other forms of energy can be introduced into the vibration In order to further increase the energy collection efficiency and improve the output of converted electric energy, there is no such system and device so far, and the proposal of the present invention will solve this problem

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