Patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator

A piezoelectric ultrasonic and patch-type technology, which is applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problems of complex processing and assembly, difficult miniaturization, etc. Achieve the effects of simple processing and assembly, low processing precision requirements, and easy miniaturization and integration

Inactive Publication Date: 2014-05-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the processing and assembly of the existing T-type linear ultrasonic motor vibrator is relatively complicated and it is difficult to realize miniaturization, the present invention proposes a patch type longitudinal vibration composite single-leg piezoelectric ultrasonic motor vibrator

Method used

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  • Patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator
  • Patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator
  • Patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator

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specific Embodiment approach 1

[0016] Specific implementation mode 1. Combination Figure 1 to Figure 3 Describe this embodiment, the chip-type longitudinal vibration composite single-leg piezoelectric ultrasonic motor vibrator described in this embodiment includes a metal base 1 and six piezoelectric ceramic sheets 2,

[0017] The metal base 1 includes two horizontal beams 1-1, a vertical beam 1-2, a driving foot 1-3, two thin-walled beams 1-4 and two flanges 1-5,

[0018] The end of the horizontal beam 1-1 is provided with a horizontal horn 1-1-1, the end of the vertical beam 1-2 is provided with a vertical horn 1-2-1, the horizontal horn 1-1-1 and The vertical horns 1-2-1 are all blocks with gradually tapered cross-sections, and the driving feet 1-3 and the two horizontal horns 1-1-1 and the vertical horn 1-2-1 are small The ends are fixedly connected, two horizontal beams 1-1 and vertical beams 1-2 are set according to T shape, a thin-walled beam 1-4 is set on the side of the two horizontal beams 1-1, ...

specific Embodiment approach 2

[0020] Embodiment 2. The difference between this embodiment and the patch-type longitudinal vibration composite single-foot piezoelectric ultrasonic motor vibrator described in Embodiment 1 is that the two horizontal beams 1-1 and the vertical beam 1- 2. The metal matrix 1 composed of the driving foot 1-3, two thin-walled beams 1-4 and two flanges 1-5 is one piece.

[0021] In this embodiment, the metal matrix 1 composed of two horizontal beams 1-1, a vertical beam 1-2, a driving foot 1-3, two thin-walled beams 1-4 and two flanges 1-5 is one piece, This can greatly simplify the manufacturing process of the ultrasonic motor vibrator; the thin-walled beams 1-4 are used to achieve the effects of elastic support and vibration isolation, and can minimize the influence of the connection between the vibrator and other components on the vibration of the vibrator itself.

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Abstract

The invention provides a patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator, and relates to the technical field of ultrasonic motors. The patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator aims to resolve the problems that an existing T-shaped linear ultrasonic motor oscillator is complex to machine and assemble and achieves microminiaturization difficultly. The tail end of each horizontal beam is provided with a horizontal amplitude-change pole, the tail end of a vertical beam is provided with a vertical amplitude-change pole, the horizontal amplitude-change poles and the vertical amplitude-change pole are blocks, the size of the section of each block is gradually reduced, a driving foot is fixedly connected with the small ends of the two horizontal amplitude-change poles and the small end of the vertical amplitude-change pole, the two horizontal beams and the vertical beam are arranged in a T shape, the side surfaces of the two horizontal beams are respectively provided with a thin wall beam, and the outer side of each thin wall beam is provided with a flange. The upper surface of each horizontal beam, the lower surface of each horizontal beam, the upper surface of the vertical beam and the lower surface of the vertical beam are respectively provided with a piezoelectric ceramic piece, all the piezoelectric ceramic pieces are polarized in the direction of thickness, the piezoelectric ceramic piece on the upper surface of the vertical beam and the piezoelectric ceramic piece on the lower surface of the vertical beam are opposite in polarizing direction, and the piezoelectric ceramic piece on the upper surface of each horizontal beam and the piezoelectric ceramic piece on the lower surface of the corresponding horizontal beam are opposite in polarizing direction. The patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator can be used for ultrasonic motors.

Description

technical field [0001] The invention relates to a patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor vibrator, which belongs to the technical field of piezoelectric ultrasonic motors. 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 simple structure, flexible design, low speed, high torque / thrust, high power / torque density, high positioning accuracy, fast response speed, and self-locking when power is off. , No electromagnetic interfere...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/04
Inventor 刘英想陈维山冯培连刘军考石胜君
Owner HARBIN INST OF TECH
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