Method for collecting piezoelectric energy by wind energy and device thereof

A piezoelectric energy collection device technology, applied in wind power generation, circuit devices, battery circuit devices, etc., can solve the problems of inconvenient contact with the outside world when sending out distress signals, vibration source supply to wireless communication equipment, etc., and achieves convenient use and simple implementation structure , Ease of use

Inactive Publication Date: 2011-01-19
WENZHOU UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this energy harvesting method has high efficiency, it must have a vibration source of mechanical vibration to play its role.
In some special cases, it is difficult to find an effective vibration source to s

Method used

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  • Method for collecting piezoelectric energy by wind energy and device thereof
  • Method for collecting piezoelectric energy by wind energy and device thereof
  • Method for collecting piezoelectric energy by wind energy and device thereof

Examples

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Example Embodiment

[0022] Examples. A piezoelectric energy collection method using wind energy. Wind energy is used to drive a fan. The fan drives one or more rotating carriers to rotate. The evenly distributed permanent magnets on each rotating carrier generate repulsive force against the permanent magnets on the cantilever beam, and then drive it The cantilever beam vibrates, the piezoelectric material on the cantilever beam produces periodic deformation, so that the piezoelectric material generates energy and collects it; the cantilever beam vibration is the resonance frequency of the cantilever beam vibration, which can be set on the cantilever beam by adjusting The mass of the movable mass and its position on the cantilever beam are controlled. The vibration of the cantilever beam is the excitation frequency of the cantilever beam, which can be controlled by the number of permanent magnets attached to the rotating carrier.

[0023] The piezoelectric energy collection device using wind energy ...

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Abstract

The invention discloses a method for collecting piezoelectric energy by wind energy and a device thereof, wherein, a rotating carrier is driven by wind energy so that a permanent magnet on the rotating carrier produces a repulsive force on a fixed magnet on a cantilever beam to drive the cantilever beam to vibrate; and after a piezoelectric material on the cantilever beam is deformed, the energy is generated and then collected. In the invention, the wind energy is transformed into mechanical vibration energy to generate electricity and then supply power to a sensor or other low-power consumption systems, thus being free from restriction of a vibration source to realize convenient use. The device of the invention further has the characteristics of simple implementation structure. The invention can be used in preliminary power supplies of a plurality of wireless communication equipment and a charging apparatus for a small-sized rechargeable battery.

Description

technical field [0001] The invention relates to a method and device for utilizing wind energy, in particular to a method and device for collecting wind energy in a piezoelectric manner. Background technique [0002] In recent years, with the wide application of wireless devices, their power supply issues have received widespread attention. As a new type of miniature power generation device, piezoelectric energy harvesting device has the advantages of simple structure, low calorific value, no electromagnetic interference, easy processing and production, and realizes structural miniaturization and integration. It is suitable for various sensing and monitoring system. Most of the piezoelectric energy harvesting devices on the market are completed by the transfer of mechanical energy around them. Although this energy collection method has high efficiency, it must have a vibration source of mechanical vibration to play its role. In some special cases, it is difficult to find a...

Claims

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Application Information

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IPC IPC(8): H02N2/18F03D9/00H02J7/32
CPCY02E10/72
Inventor 申允德成泰洪玄东吉李振哲任明李勇
Owner WENZHOU UNIVERSITY
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