Experience type horizontal collision vibration energy acquisition device for teaching

Abstract

The invention relates to an experience type horizontal collision vibration energy collection device for teaching. The horizontal collision vibration energy collecting device comprises a U-shaped base,a piezoelectric cantilever beam, a U-shaped guide rail, a sliding block, a spring and a collision steel ball, one end of the piezoelectric cantilever beam is fixed to the U-shaped base, a mass blockadheres to the free end of the piezoelectric cantilever beam, and the U-shaped base and the U-shaped guide rail are oppositely and fixedly arranged; the collision mechanism-based vibration energy collection device for experience teaching can provide energy for low-power-consumption interaction equipment, is safe and efficient, does not cause environmental pollution, can promote popularization andapplication of the experience teaching equipment, and has a wide application prospect in the field of teaching equipment.

Description

technical field [0001] The invention belongs to the field of experiential teaching equipment and renewable energy, and in particular relates to a vibration energy collection device for teaching based on a collision mechanism, which improves the output electric power and energy conversion rate of the piezoelectric cantilever beam type energy collection device. Background technique [0002] With the continuous development of information technology and the continuous increase of the country's investment in education, the conditions for running schools have undergone earth-shaking changes, and advanced educational concepts have also developed rapidly driven by technology; traditional classroom teaching, although teachers can fully Teachers and students can interact in a timely manner. However, due to the shortcomings of single teaching technology, severely limited teaching resources, and the inability to reproduce and reuse teaching content, it is now severely challenged by multi...

AI Technical Summary

Problems solved by technology

[0003] The emergence of new teaching equipment not only brings innovations in education, but also brings new problems; the power supply methods of existing teaching equipment are divided into the following two types, battery power supply and power supply, for battery power supply, battery power supply The capacity of the battery is limited, the life is short, and the time when the power is exhausted is unknown, and for those devices that have not been used for a long time, the battery inside will corrode the device, and it is also very troublesome to dispose of the discarded battery; The equipment is powered by an external plug-in board. This exposed cable socket not only poses a great safety hazard, but also affects the appearance of the classroom. Therefore, it is of great value for the research on the power supply of experiential teaching equipment.

[0004] Vibration energy exists widely in the environment, and the use of piezoelectric materials to convert the vibration energy in the environment into electrical energy has been extensively studied at home and abroad for the power supply of micro-electromechanical devices and wireless sensor nodes. Among them, the piezoelectric energy of the cantilever beam structure Harvesters are relatively common. However, the output power of traditional energy harvesters with cantilever beam and fixed mass structure is low, and the converted vibration energy is limited. In order to improve the voltage output of energy harvesters with piezoelectric cantilever beam structures, many experts and scholars Proposed energy harvesting device based on collision vibration

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