A Miniaturized Temperature and Stress Controllable Magnetoelectric Transducer

Abstract

The invention discloses a miniaturized magneto-electricity energy converter with controllable temperature and controllable stress. The miniaturized magneto-electricity energy converter with the controllable temperature and the controllable stress comprises a magneto-electricity composite structure, an encapsulation shell, an antimagnetic screw, an antimagnetic piston and a plurality of semiconductor temperature control sheets which are arranged on the upper surface of the magneto-electricity composite structure. The magneto-electricity composite structure is a laminated composite structure composed of two pieces of giant magnetostrictive material and a piece of piezoelectric material in a laminated adhesion mode, wherein the piezoelectric material layer is clamped between the two pieces of giant magnetostrictive material. A hole is formed in one side surface of the encapsulation shell and the antimagnetic screw is placed in the hole. The antimagnetic piston makes contact with the upper piece of giant magnetostrictive material and the lower piece of giant magnetostrictive material of the magneto-electricity composite structure, and the antimagnetic piston and the piezoelectric material are arranged in the encapsulation shell in a spaced mode. An antimagnetic spring is arranged between the antimagnetic screw and the antimagnetic piston. A groove is formed in the side face, making contact with the giant magnetostrictive material, of the antimagnetic piston, and one end of the piezoelectric material is arranged in the groove. The upper face and the lower face of the piezoelectric material are coated with metal films serving as electrodes. The metal films are connected with an electrode line. The miniaturized magneto-electricity energy converter with the controllable temperature and the controllable stress has the advantages that the structure is simple, the size is small, use is easy, the use error is small, and the temperature and the pressure are controllable.

Description

technical field [0001] The invention relates to energy conversion technology, in particular to a miniaturized magnetoelectric transducer with controllable temperature and stress. Background technique [0002] Magnetoelectric laminated materials have the characteristics of strong magnetoelectric effect and easy preparation, and are widely used in precision control systems, intelligent filters, drives, sensors, transducers, etc., to promote the development of cutting-edge technology, military technology and traditional industries. modernization. With the rapid development of modern high-tech industries, the demand for high-performance and miniaturized magnetoelectric devices based on magnetoelectric composite materials is increasing. [0003] The working principle of magnetoelectric devices composed of magnetoelectric laminated materials is mainly based on the magnetostrictive effect of giant magnetostrictive materials and the piezoelectric effect of piezoelectric materials. ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a miniaturized temperature and stress controllable magnetoelectric transducer, which not only has a simple structure, but also has a large volume. Small, easy to use, and small error in use, with the advantages of controllable temperature and stress

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