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Clamping Type Longitudinal Bending Composite Ultrasonic Motor Vibrator

An ultrasonic motor, clamping technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve the limitation of the strength of the adhesive layer and the fatigue life of the vibrator amplitude , low tensile strength and other issues, to achieve the effect of flexible design, increased fatigue life, and easy control

Active Publication Date: 2016-09-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of low tensile strength of ceramic materials, the strength and fatigue life of the adhesive layer, and the limited improvement of the amplitude of the vibrator existing in the vibrator of the chip type ultrasonic motor, and provides a clamping type longitudinal bending composite ultrasonic vibrator. Motor vibrator

Method used

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  • Clamping Type Longitudinal Bending Composite Ultrasonic Motor Vibrator
  • Clamping Type Longitudinal Bending Composite Ultrasonic Motor Vibrator
  • Clamping Type Longitudinal Bending Composite Ultrasonic Motor Vibrator

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specific Embodiment approach 1

[0016] Specific implementation mode 1. Combination figure 1 Describe this embodiment, the clip-type longitudinal bending composite ultrasonic motor vibrator in this embodiment includes four piezoelectric ceramic substrates 1, two hard plates 2 and five electrode sheets 3;

[0017] Four piezoelectric ceramic substrates 1 are arranged in parallel, and are sandwiched between two hard plates 2. The polarization directions of the first piezoelectric ceramic substrate 1 and the second piezoelectric ceramic substrate 1 are opposite, and the third piezoelectric ceramic substrate 1 The polarization directions of the piezoelectric ceramic substrate 1 and the fourth piezoelectric ceramic substrate 1 are opposite, and the five electrode sheets 3 are respectively clamped between the first hard plate 2 and the adjacent piezoelectric ceramic substrate 1, Between two adjacent piezoelectric ceramic substrates 1 and between the second hard plate 2 and its adjacent piezoelectric ceramic substrat...

specific Embodiment approach 2

[0018] Specific Embodiment 2. This embodiment is a further description of the clip-type longitudinal bending composite ultrasonic motor vibrator described in Specific Embodiment 1. In order from left to right, the first piezoelectric ceramic substrate 1 and the second The electrode sheet 3 between the piezoelectric ceramic substrates 1 and the electrode sheet 3 between the third piezoelectric ceramic substrate 1 and the fourth piezoelectric ceramic substrate 1 are respectively connected to two phases with a phase difference of 90 degrees of the excitation power supply. AC voltage signal,

[0019] The electrode sheet 3 between the second piezoelectric ceramic sheet 1 and the third piezoelectric ceramic sheet 1, the electrode sheet 3 between the first piezoelectric ceramic sheet 1 and the first hard plate 2, and the fourth sheet pressure The electrode sheets 3 between the electric ceramic sheet 1 and the second hard board 2 are all connected to the common terminal of the excitat...

specific Embodiment approach 3

[0020] Specific embodiment three, combine figure 2 Describe the clip-type longitudinal bending composite ultrasonic motor vibrator described in this embodiment, which includes four piezoelectric ceramic substrates 1, two hard plates 2 and seven electrode sheets 3;

[0021] Four piezoelectric ceramic substrates 1 are arranged in parallel, and are sandwiched between two hard plates 2. The polarization directions of the first piezoelectric ceramic substrate 1 and the second piezoelectric ceramic substrate 1 are opposite, and the third piezoelectric ceramic substrate 1 The polarization directions of the piezoelectric ceramic substrate 1 and the fourth piezoelectric ceramic substrate 1 are opposite,

[0022] Two electrode sheets 3 are arranged between the first piezoelectric ceramic sheet 1 and the second piezoelectric ceramic sheet 1, and the two electrode sheets 3 are arranged in parallel in the same plane, between the two electrode sheets 3 There is a gap, and two electrode sh...

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Abstract

A clamping type longitudinal bending composite ultrasonic motor vibrator belongs to the technical field of piezoelectric ultrasonic motors, and in particular relates to a clamping type longitudinal bending composite ultrasonic motor vibrator. It solves the problems of low tensile strength of ceramic materials, the strength and fatigue life of the glue layer, and the limitation of the amplitude of the vibrator existing in the vibrator of the existing patch type ultrasonic motor. The four piezoelectric ceramic substrates of the present invention are arranged in parallel, and Both are sandwiched between two hard plates, the polarization directions of the first piezoelectric ceramic substrate and the second piezoelectric ceramic substrate are opposite, and the polarization directions of the third piezoelectric ceramic substrate and the fourth piezoelectric ceramic substrate are The polarization directions are opposite, and the five electrode sheets are respectively clamped between the first hard plate and its adjacent piezoelectric ceramic substrate, between two adjacent piezoelectric ceramic substrates, and the second hard plate adjacent to it. between piezoelectric ceramic substrates. The invention is suitable for use as a longitudinal bending composite ultrasonic motor vibrator.

Description

technical field [0001] The invention belongs to the technical field of piezoelectric ultrasonic motors, and in particular relates to a clip-type longitudinal-bending composite ultrasonic motor vibrator. Background technique [0002] Piezoelectric ultrasonic motor is a kind of piezoelectric ultrasonic motor that uses the inverse piezoelectric effect of piezoelectric ceramics to excite vibration in the ultrasonic frequency range in the elastic body, and forms a particle motion with a specific trajectory at a specific point or area on the surface of the elastic body, and then passes through the stator, The frictional coupling between the rotors converts the microscopic motion of the particle into the macroscopic motion of the rotor. It has the advantages of low speed and high torque, no need for a transmission mechanism, no electromagnetic interference, fast response, and self-locking when power is off. As a piezoelectric driver, it has Very wide range of applications. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/00H02N2/04H02N2/12
Inventor 陈维山杨小辉刘英想刘军考石胜君
Owner HARBIN INST OF TECH