Piezoelectric-driven micro-motor device based on cantilever beam vibration and working method thereof

A piezoelectric drive, micro-motor technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., can solve the problems of high processing precision and complex structure, etc. It can achieve the effect of simple installation, high movement precision, and control of movement direction and angle.

Inactive Publication Date: 2019-05-21
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, piezoelectric motors mostly use the structure of stator and rotor to realize rot

Method used

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  • Piezoelectric-driven micro-motor device based on cantilever beam vibration and working method thereof
  • Piezoelectric-driven micro-motor device based on cantilever beam vibration and working method thereof

Examples

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[0031] The present invention will be further described in detail below in conjunction with specific embodiments, which are to explain rather than limit the present invention.

[0032] like Figures 1 to 2 As shown, the piezoelectric drive micromotor device based on cantilever beam vibration of the present invention includes three parts: a microcantilever beam piezoelectric drive system, a power output system and a motor start-stop system. The micro-cantilever piezoelectric drive system includes a first fixed end 1, a piezoelectric sheet 4 and a micro-cantilever beam 5; the power output system includes a mass 11, a hinge 10, an inertia wheel shaft 9, a connecting rod 6 and an inertia wheel 8; the motor starts and stops The system includes a circuit, and the circuit includes a power switch 2 and an AC power source 3 .

[0033] The left end of the micro-cantilever beam 5 is fixedly connected to the first fixed end 1, and the right end is fixedly connected to the mass block 11. T...

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Abstract

The invention particularly relates to a piezoelectric-driven micro-motor device based on cantilever beam vibration; the piezoelectric-driven micro-motor device comprises a first fixed end, a piezoelectric piece, a micro-cantilever beam, a mass block, a hinge, an inertia wheel shaft, a connecting rod, an inertia wheel, an alternating-current power supply and a power switch; one end of the micro-cantilever beam is fixedly connected with the fixed end, and the other end of the micro-cantilever beam is fixedly connected with the mass block; the piezoelectric piece is attached to the micro-cantilever beam, and the piezoelectric piece is in connection conduction with a circuit; one end of the connecting rod is connected with the mass block, and the other end of the connecting rod is connected with the inertia wheel. The power switch is closed, and an alternating current voltage is applied to the piezoelectric piece by the alternating-current power supply, the piezoelectric piece is stretchedand deformed to drive the micro-cantilever beam to vibrate, and the mass block moves up and down along with the micro-cantilever beam, the connecting rod is pushed to do plane motion, and the inertiawheel performs fixed shaft rotation; the power switch is switched off, the piezoelectric piece returns to the original form, the micro-cantilever beam returns to the static state, and the inertia wheel stops rotating. The vibration displacement is generated by the mass block at the right end of the beam by utilizing the vibration micro-cantilever beam displacement amplification effect, so that the vibration of the micro-cantilever beam can be converted for driving rotation of the driving inertia wheel.

Description

technical field [0001] The invention belongs to the field of micromechanical motors, and in particular relates to a piezoelectrically driven micromotor device based on cantilever beam vibration and a working method thereof. Background technique [0002] MEMS has a wide range of applications and great prospects in the fields of communication, aerospace, medicine, and agriculture. MEMS mainly includes micro sensors, actuators and corresponding processing circuits. The actuator plays a key role in the whole system, and its function is to use different principles and actuators to generate force and realize displacement. A micromotor is a typical microactuator, and a micromotor is a typical microactuator, which refers to a motor with a small volume and capacity, a small output power, or a motor with special application conditions. Piezoelectric motor is a classification of micro motor, which converts electrical energy into mechanical energy by using the forward and reverse piezo...

Claims

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Application Information

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IPC IPC(8): H02N2/04
Inventor 刘文晓付锐刘灿昌杨菲曹理想单越
Owner CHANGAN UNIV
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