Variable cross-section Rosen piezoelectric transformer

A piezoelectric transformer and variable cross-section technology, applied in the field of piezoelectric transformers, can solve problems such as suboptimal conversion efficiency, achieve compact structure, improve transformation efficiency, and be easy to manufacture

Inactive Publication Date: 2007-05-23
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is a constant-section piezoelectric transformer, which has the advantages of low energy consumption and easy miniaturization, but its conversion efficiency is not optimal

Method used

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  • Variable cross-section Rosen piezoelectric transformer
  • Variable cross-section Rosen piezoelectric transformer
  • Variable cross-section Rosen piezoelectric transformer

Examples

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Embodiment Construction

[0018] Referring to Figures 1, 2, and 3, the first isosceles trapezoidal piezoelectric sheet constitutes the input end 1 of the piezoelectric transformer, and the second isosceles trapezoidal piezoelectric sheet constitutes the output end 2, and the input end 1 and output end 2 are along the interface 3 stick together. The polarization direction P of the input end 1 is polarized along the thickness direction, and metal electrodes 4 and 5 are arranged on the upper and lower surfaces of the input end 1, and the electrodes 4 and 5 form an input interface 6 connected to an external power source. The polarization direction P of output 2 is along x 1 Polarized in the axial direction (length direction), the end face of the output end 2 is arranged with a metal electrode 7, and the electrodes 5 and 7 are connected with the external electronic instrument Z L 8 connected. Figures 2 and 3 show the top view and sectional view of the present invention, from the top view: the width of the...

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Abstract

The invention relates to a variable-section Rosen piezoelectric transformer, which comprises input and output formed by isosceles trapezium piezoelectric sheets, wherein the input and output are connected via interface; the input is polarized along thickness; the output is polarized along length; the upper and lower faces of input have metal electrodes, to form input interface of piezoelectric transformer; the end of output has metal electrode, with the metal electrode at low face of input to form output interface.

Description

technical field [0001] The invention relates to a piezoelectric transformer, in particular to a variable-section Rosen type piezoelectric transformer. Background technique [0002] A transformer is a commonly used voltage conversion device, which can convert the input and output voltages as needed to meet actual needs. The common transformer is an electromagnetic core transformer, which realizes the mutual conversion of electric energy and magnetic energy through two sets of inductive coils. Electromagnetic transformers cannot meet the demand for miniaturization of transformer parts due to their large volume, high energy consumption, low efficiency, and difficulty in miniaturization. Piezoelectric transformers use the force-to-electricity conversion function of piezoelectric ceramics to realize the mutual conversion between electrical energy and mechanical energy, so as to achieve the purpose of increasing or decreasing the voltage. Piezoelectric transformers, especially R...

Claims

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Application Information

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IPC IPC(8): H01L41/107
Inventor 胡元太杨嘉实薛欢蒋树农
Owner CENT SOUTH UNIV
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