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Collision type piezoelectric micro-energy collector

A micro-energy, piezoelectric technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc. Cracks and other problems, to achieve the effect of improving energy collection efficiency, increasing energy collection density, and increasing output power

Inactive Publication Date: 2015-01-14
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) There is no reasonable design of the collision contact surface and no certain protective measures. When the external rigid body directly collides with the piezoelectric material, it will cause the piezoelectric material to break and affect its service life;
[0007] (2) The magnitude of the collision force cannot be effectively controlled. Long-term work will cause cracks or even failure of the piezoelectric material. In addition, the collision position cannot be changed or reasonably set, and the impulse at the fixed end cannot be effectively reduced.

Method used

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Embodiment Construction

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] The embodiment of the present invention provides a portable collision piezoelectric micro-energy collector, which has the characteristics of compact structure, high energy density, stable performance, etc. The device can convert the mechanical energy generated by human walking into electrical energy based on the characteristics of human body movement and convert it into electrical energy. Portable sensor powered.

[0042] The c...

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PUM

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Abstract

The invention discloses a collision type piezoelectric micro-energy collector which comprises a fixed base, a guide rod, a sliding block, a photoelectric sheet and a collision block, wherein the fixed base consists of a square pipe, a protection cover and an end cover; the guide rod is fixedly arranged on the fixed base; the sliding block is arranged on the guide rod in a sliding manner; the photoelectric sheet is arranged on the fixed base in a suspension beam manner; and the collision block is fixedly arranged at the free end of the photoelectric sheet and used for colliding with the sliding sliding block to ensure that the photoelectric sheet vibrates and generates electricity. According to the technical scheme of the invention, the performance of the collision type piezoelectric micro energy collector can be enhanced, the service life of the collector is prolonged, the energy collection efficiency is increased, and the mechanical energy generated by walking of a human body is converted into electric energy on the basis of the characteristic of the movement of the human body so as to supply power for a portable sensor.

Description

technical field [0001] The invention relates to the field of electromechanical technology, in particular to a collision type piezoelectric micro-energy collector. Background technique [0002] At present, the use of energy harvesting devices to obtain energy (such as solar energy, thermal energy, electromagnetic energy and mechanical energy, etc.) from the surroundings and convert it into useful electrical energy to replace the battery power supply method has become a new power supply method. people's attention. Among the above-mentioned energies, mechanical vibration energy in mechanical energy has a wide range of sources, such as wind, rotating machinery, liquid flow, and human movement. Compared with battery power, this self-powering method can reduce pollution and reduce maintenance costs due to battery replacement and work failures due to depleted power. [0003] In the prior art, there are generally three methods used to convert mechanical vibration energy into elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
Inventor 胡泓魏胜
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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