Boundary condition-based single-drive two-way piezoelectric motor

A piezoelectric motor and boundary condition technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., which can solve the problems of limited application and bulky piezoelectric motor systems. , to achieve the effect of simple structure, reduced volume and power consumption, and low driving voltage

Inactive Publication Date: 2011-04-06
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the traditional piezoelectric motor uses two sets of piezoelectric sheets to control forward and reverse rotation, and each set of piezoelectric sheets requires a circuit drive, the volume of the piezoelectric motor system will become large, which limits its application in the field of precision machinery. application

Method used

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  • Boundary condition-based single-drive two-way piezoelectric motor
  • Boundary condition-based single-drive two-way piezoelectric motor
  • Boundary condition-based single-drive two-way piezoelectric motor

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Embodiment Construction

[0025] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, the piezoelectric motor of the present invention includes a base 1, a stator fixedly connected to the base 1, and a rotor that can rotate relative to the stator and the base 1; the stator includes a driving body 3 with a central hole 8 and is connected to the The piezoelectric sheet 2 on one side of the driving body 3; the central hole 8 in the driving body 3 runs through the base 1; the rotor includes a rotating body 5 passing through the central hole 8 of the driving body 3 and a cap fixedly connected to one end of the rotating body 5 4; The cap body 4 is in contact with the driving body 3, and there is a gap between the rotating body 5 and the center hole 8 of the driving body 3; the edge of the base 1 is provided with four screw holes symmetrically distributed, respectively marked clockwise For screw hole C 1 , screw hole C 2 , screw hole C 3 and screw hole C 4 , as the boundary condition; screw ...

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Abstract

The invention discloses a boundary condition-based single-drive two-way piezoelectric motor. The boundary condition-based single-drive two-way piezoelectric motor comprises a base, a stator and a rotor, wherein the stator is fixedly connected with the base; the rotor can rotate relative to the stator and the base; the stator comprises a driving body with a center hole and a piezoelectric sheet connected to a plane on one side of the driving body through an interfacial force; the center hole of the driving body passes through the base; the rotor comprises a rotating body and a cap body; the rotating body passes through the center hole of the driving body; the cap body is fixedly connected with one end of the rotating body; the cap body is contacted with the driving body; a gap is reserved between the rotating body and the wall of the center hole of the driving body; and four screw holes are symmetrically formed on the edge of the base. The boundary condition-based single-drive two-way piezoelectric motor is small in volume and low in power consumption and plays an important role in the microminiaturization of the piezoelectric motor.

Description

technical field [0001] The invention relates to the field of piezoelectric motors, in particular to a single-drive bidirectional piezoelectric motor based on boundary conditions. Background technique [0002] Ultrasonic Motor (Ultrasonic Motor), referred to as USM, is a motor that uses the inverse piezoelectric effect to convert electrical energy to mechanical energy; it is generally composed of stators, rotors and other components. The surface particles of the stator in contact with the rotor produce elliptical motion, which leads to relative motion between the surface particles of the stator and the rotor. With the help of the friction force on the rotor surface, a unidirectional sliding friction occurs between the stator and the rotor, and finally drives the rotor to move. In view of the fact that the mechanical vibration of the stator is generated by the piezoelectric material according to the inverse piezoelectric effect, the ultrasonic motor is also called the piezoele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/14
Inventor 邢增平
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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