Array type piezoelectric generating device

A piezoelectric power generation, array technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve the problem of easy fracture damage, high operating frequency of piezoelectric cantilever question

Inactive Publication Date: 2014-01-22
扬州博达电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of high operating frequency and easy fracture and damage of the piezoelectric cantilever beam in the current bending piezoelectric power generation device, and propose a combined piezoelectric power generation device, which uses multiple...

Method used

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  • Array type piezoelectric generating device
  • Array type piezoelectric generating device
  • Array type piezoelectric generating device

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Experimental program
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Embodiment Construction

[0019] figure 1 The structure of the piezoelectric element including piezoelectric material 2, electrodes electrode I and electrode II is described. The electrodes 1 and 3 are coated on both sides of the piezoelectric material, and the piezoelectric material is located in the middle of the two electrodes, similar to a sandwich structure; the polarization direction of the piezoelectric material is parallel to the thickness direction. Due to the positive piezoelectric effect, when the piezoelectric element is subjected to stress strain, charges and voltages will be generated on the electrodes. The piezoelectric material 2 in the piezoelectric element is made of one of piezoelectric single crystal, piezoelectric ceramic, piezoelectric polymer, piezoelectric composite material or a combination thereof. All piezoelectric elements are connected in series or in parallel.

[0020] figure 2 and image 3 It describes the side view and top view of the cantilever plate structure with...

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Abstract

The invention discloses an array type piezoelectric generating device. A plurality of cantilever plates with two sides stuck with a plurality of piezoelectric elements are combined together; one end of each cantilever plate is fixed and the other end of each cantilever plate is free; and the different cantilever plates are kept in parallel. As the structural sizes of the cantilever plates are different, the bending resonance frequencies of the cantilever plates are also different. The combined type piezoelectric generating device can convert the mechanical vibration energy of a certain frequency range of an environment into electric energy so as to realize broadband power generating; and as the energy of the plurality of piezoelectric elements is collected, the power generating capacity is larger and the power generating efficiency is higher.

Description

technical field [0001] The present invention relates to an array type piezoelectric generating device, a device that can convert vibrational mechanical energy of the environment into electrical energy. Background technique [0002] The piezoelectric generator can convert the vibrating mechanical energy of the surrounding environment or the human body into electrical energy to supply power for electronic equipment, so that the electronic equipment does not need to be frequently replaced or recharged, which improves the maintenance-free nature of the electronic equipment. Its typical applications include providing power for wireless electronic devices such as wireless sensors or wireless sensor networks, or mobile electronic devices, and has important application values ​​in both national defense and civilian fields. [0003] The working principle of piezoelectric power generation is based on the positive piezoelectric effect, which converts the vibration mechanical energy of ...

Claims

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Application Information

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IPC IPC(8): H02N2/18
Inventor 边义祥
Owner 扬州博达电气设备有限公司
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