Low-frequency compression mode piezoelectric energy collector

A piezoelectric energy collector technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., to widen the working environment, simplify the device structure, and increase the output voltage Effect

Active Publication Date: 2021-03-19
SHANGHAI UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

But few researchers have designed piezoelectric energy harvesters based on rhombic telescopic frames

Method used

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  • Low-frequency compression mode piezoelectric energy collector
  • Low-frequency compression mode piezoelectric energy collector
  • Low-frequency compression mode piezoelectric energy collector

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] The purpose of the present invention is to provide a piezoelectric energy harvester in low-frequency pressure mode to solve the problems in the prior art.

[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The low-frequency pressurized mode piezoel...

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Abstract

The invention discloses a low-frequency compression mode piezoelectric energy collector. The low-frequency compression mode piezoelectric energy collector comprises a spring oscillator module and an energy collection module, wherein the spring oscillator module comprises a stainless steel oscillator, two guide rails, two springs and two limiting plugs. Low-frequency vibration is converted into high-frequency vibration through collision between the stainless steel vibrator and the spring, and then vibration signals are transmitted to the energy collection module through the limiting plug and the guide rail. The energy collection module comprises two rhombic telescopic frame structures, a top rotating shaft, a bottom rotating shaft, two adapters, two clamping devices and a piezoelectric plate. By means of the rhombic telescopic frame mechanism, vibration force is amplified into compression force, then the compression force is applied to the piezoelectric plate through the clamp holder, and therefore electric energy is generated.

Description

technical field [0001] The invention relates to the technical field of energy harvesters, in particular to a low-frequency pressure-mode piezoelectric energy harvester. Background technique [0002] A piezoelectric energy harvester (PEH) is an efficient device capable of converting mechanical energy into electrical energy. It adopts piezoelectric material as an energy conversion device, which has the characteristics of high power density and easy installation. In addition, traditional energy sources (such as chemical batteries) have many disadvantages, such as limited service life, environmental pollution, etc., which will be further amplified in today's rapidly developing industrial environment. In order to make up for these shortcomings, harvesting energy from the surrounding environment has become a frontier hotspot of research and has been widely favored in recent decades. [0003] Vibrational energy is found everywhere in nature. Wind, body motion, and tidal motion a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18
CPCH02N2/186
Inventor 李忠杰彭绪彰彭艳罗均谢少荣蒲华燕
Owner SHANGHAI UNIV
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