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Acuminium-base laminated high-over load piezoelectric driver

A piezoelectric driver, high overload technology, applied in the field of piezoelectric ceramics, can solve the problems of inability to apply high overload environment, shear resistance, tensile resistance and overload resistance, and achieve high tensile resistance, output voltage and capacitance Low load capacity, easy to achieve effect

Inactive Publication Date: 2008-10-15
ZHONGBEI UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem that existing piezoelectric actuators have poor anti-shearing, anti-stretching, and especially anti-overload capabilities, and cannot be applied to high-overload environments, and provides an aluminum-based laminated high-overload piezoelectric actuator.

Method used

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  • Acuminium-base laminated high-over load piezoelectric driver
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  • Acuminium-base laminated high-over load piezoelectric driver

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Embodiment Construction

[0010] The aluminum-based laminated high-overload piezoelectric driver includes two piezoelectric ceramic laminates that are mechanically connected in series and electrically connected in parallel. An aluminum foil substrate 2 is bonded between the two piezoelectric ceramic laminates, and the aluminum foil substrate 2 is bonded to the piezoelectric ceramic laminate. The contact surface (at the same time as the existing bonding) is locally bonded with conductive epoxy, and the outer surfaces of the two piezoelectric ceramic laminates (backwards to the aluminum foil substrate are the outer) are connected as one pole of the electrode, and the aluminum foil substrate 2 is the pole of the electrode. the other pole. The two ends of the driver are snapped into and bonded in the glass fiber masses 1 and 7 through epoxy resin. The glass fiber masses 1 play the role of further clamping the piezoelectric ceramic laminate and the aluminum foil substrate on the one hand, and protect the Th...

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Abstract

This invention relates to an Al base laminated high overload piezoelectric driver including two serial mechanically and parallel electrically piezoelectric ceramic lamination layers and an Al foil base adhered in between, in which, part of the contact face of the base and the lamination layer is adhered by a conductive epoxide, the outer surfaces of the two piezoelectric ceramic layers are connected as one of the electrode and the Al foil base is the other, which introduces the Al foil base and applies a lateral extension mode of D31 to ensure its high ability of anti-pull, anti-cut and anti-over load.

Description

technical field [0001] The invention relates to a piezoelectric driver and belongs to the technical field of piezoelectric ceramics, in particular to an aluminum-based laminated high-overload piezoelectric driver. Background technique [0002] The piezoelectric actuator is a transducing element that directly converts electrical energy into mechanical energy by using the inverse piezoelectric effect of the dielectric in the electric field to generate micro-displacement. It has the advantages of small size, high resolution, fast response, low power consumption, and no electromagnetic interference. , occupies an increasingly important position in micro-nano drive and control technology, and its application involves important high-tech fields such as aerospace, precision optics, micro-mechanics, laser communication, and robotics. [0003] It has been recognized that at the moment an electric field is applied to a piezoelectric ceramic, the material will undergo a controllable st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L41/083H01L41/187H01L41/24
Inventor 刘俊张文栋石云波薛晨阳任勇峰崔永俊王昊宇杨林森
Owner ZHONGBEI UNIV
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