Magneto-elastic material-based electromagnetic-type micro-actuator

Abstract

The invention discloses a magneto-elastic material-based electromagnetic-type micro-actuator, which comprises a bushing having a closed structure, a magnetic circuit mechanism, a drive mechanism, a pre-pressing mechanism and a sensor module, wherein the magnetic circuit mechanism, the drive mechanism, the pre-pressing mechanism and the sensor module are arranged inside the bushing in a tightening way; the magnetic circuit mechanism is sleeved inside the bushing, the drive mechanism is sleeved inside the magnetic circuit mechanism, and the pre-pressing mechanism is arranged between the bushing and the magnetic circuit mechanism and stretches out of the bushing. Due to the adoption of the magneto-elastic material-based electromagnetic-type micro-actuator, the weaknesses of the prior art that the function is single, the structure is complicated, the homogeneity of the magnetic field is low, and the like, can be overcome, and the advantages such as diversity function, simple structure and high homogeneity of the magnetic field can be realized.

Description

technical field [0001] The invention relates to the application technology of magnetoelastic materials, in particular to an electromagnetic micro-driver based on magnetoelastic materials. Background technique [0002] With the development of advanced manufacturing technology and microelectronics technology, the application of smart materials based on magnetoelastic materials has attracted more and more attention in the multidisciplinary high-tech microelectronic machinery field. [0003] As a new type of magnetoelastic functional material, giant magnetostrictive materials can effectively realize the mutual conversion of electrical energy and mechanical energy. Large size, fast response and other characteristics have been widely used in national defense and civilian fields. [0004] At present, the actuators based on magnetoelastic materials have made great progress in the application research. However, in terms of the functions that can be realized, they are all too single ...

AI Technical Summary

Problems solved by technology

[0007] (1) Single function: the drivers based on magnetoelastic materials in the prior art cannot comprehensively integrate multiple functions into one;

[0008] (2) Complex structure: the structure of the bias magnetic field is complex, and the size of the bias magnetic field cannot be changed, so the application is limited;

[0009] (3) Low uniformity of magnetic field: For the optimization of the magnetic circuit, due to the low permeability of giant magnetostrictive materials, magnetic flux leakage is easy to occur, which affects the uniformity of the magnetic field

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