Collision-type environment kinetic energy collection array with rolling bodies

Abstract

The invention discloses a collision-type environment kinetic energy collection array with rolling bodies, which belongs to the field of renewable energy sources. The collision-type environment kinetic energy collection array with rolling bodies is mainly composed of a base 1 and a collection unit array fixed on the base, wherein each collection unit is composed of a spring 2, a support 3, a piezoelectric beam 4, a steel ball (or other rolling body) 5, a top cover 6 and a cross recess head screw 7. Each collection unit swings under effects of environment vibration or wind, the steel ball (or other rolling body) 5 in the cavity (formed by the support 3, the piezoelectric beam 4 and the top cover 6) collides with the piezoelectric beam 4, the collision enables the piezoelectric beam 4 to generate vibration, and a piezoelectric layer on the piezoelectric beam 4 further converts vibration energy of the beam to electric energy. The environment kinetic energy collection array disclosed by the invention can simultaneously collect the wind energy and the vibration energy in any direction of the horizontal plane, particularly can high efficiently collect weak low-frequency, wideband, multi-direction vibration energy and medium and low-speed wind energy in the environment, and has a broad application prospect in fields such as a wireless sensing network.

Description

technical field [0001] The invention belongs to the field of renewable energy, and in particular relates to a colliding environment kinetic energy collection array structure with steel balls (or other rolling elements). Background technique [0002] As an important part of the Internet of Things, wireless sensor networks have become a research hotspot at home and abroad in recent years. In recent years, the development of technologies such as wireless communication, integrated circuits, and microsystems has made it possible to build a wireless sensor network with thousands of nodes. However, most wireless sensor network nodes are still powered by traditional batteries. Traditional batteries have disadvantages such as large size, short lifespan, and polluting the environment, which greatly limit the application of wireless sensor networks. Converting kinetic energy (vibration energy, wind energy, flowing water kinetic energy, etc.) widely present in the environment into elec...

AI Technical Summary

Problems solved by technology

However, the existing vibration energy harvesters at home and abroad have narrow frequency bands, high natural frequencies, and low efficiency in collecting weak vibration energy

In addition, vibrations in the natural environment usually have components in multiple directions, and the directions are often changing. When most of the current vibration energy harvesters can only efficiently collect vibration energy in a specific direction, vibration energy in other directions Little to no harvesting, so overall less efficient harvesting of vibrational energy

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