Piezoelectric transformer based on shearing vibration and preparation method thereof

Abstract

The invention relates to a piezoelectric transformer based on shearing vibration and a preparation method thereof. The piezoelectric transformer comprises a piezoelectric material, wherein the piezoelectric material is polarized in the thickness direction; electrodes covers two surfaces of the piezoelectric material in the width direction; the electrode on at least one surface comprises a plurality of mutually separated independent electrodes; a plurality of vibration base elements are formed; different numbers of vibration base elements in different positions in the plurality of vibration base elements are used as input ends or output ends of the transformer; and the transformer ratio is regulated through the proportion of the vibration base elements at the input end and the output end. The piezoelectric transformer provided by the invention can realize the independent regulation of the transformer ratio; the conversion efficiency of the transformer is improved; the production cost islow; the performance is high; and miniaturization, lightening and thinning can be realized.

Description

technical field [0001] The invention belongs to the application field of piezoelectric transformers, and in particular relates to a piezoelectric transformer based on shear vibration and a preparation method thereof. Background technique [0002] With the development of the electronic industry and electronic products and the continuous improvement of the level of science and technology, transformers, as important components in electronic equipment, play an increasingly important role in production and life. Traditional electromagnetic transformers use electromagnetic coupling between coils to realize voltage transformation, which usually increases the volume and weight of the entire electronic system due to power requirements, and is mostly used in some electric and high-power electronic equipment. However, the development trend of electronic information technology integration and miniaturization has pushed electronic products to develop in the direction of miniature, light ...

AI Technical Summary

Problems solved by technology

However, at that time, the market demand for power transformers with small power and small size was small, and there were few piezoelectric transformer products to choose from in the market. In addition, electronic equipment designers and manufacturers knew little about them, so the development of piezoelectric transformers remained still. relatively slow

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