Surface mount type I-shaped four-footed linear ultrasonic motor vibrator

A linear ultrasonic motor, patch technology, applied in generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve difficult miniaturization, processing and assembly accuracy requirements Harsh, complex configuration and other problems, to achieve the effect of improving consistency, simplifying processing and assembly processes, and flexible design
CN102437783AActive Publication Date: 2012-05-02HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2012-05-02

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Abstract

The invention relates to a surface mount type I-shaped four-footed linear ultrasonic motor vibrator, belonging to the technical field of piezoelectric ultrasonic motors. The surface mount type I-shaped four-footed linear ultrasonic motor vibrator provided by the invention eliminates various adverse impacts caused by coupling bending vibration in the traditional rectangular four-footed linear ultrasonic motor vibrator. Two end faces of a vertical beam of the vibrator are respectively provided with an amplitude transformer, binding site of the two amplitude transformers is a big end face of the amplitude transformer, the two end faces of a horizontal beam are respectively provided with one amplitude transformer, the binging site of the two amplitude transformers is the big end face of the amplitude transformer, the vertical beam is respectively fixedly connected with middle position of inner side walls of the two horizontal beams by virtue of small end faces of the two amplitude transformers of the two end faces of the vertical beam; the outer side wall, the upper side wall and the lower side wall of each horizontal beam are respectively provided with one piezoelectric ceramic wafer, one piezoelectric ceramic wafer is respectively arranged at the two sides of the amplitude transformer on the inner side wall of each horizontal beam, the upper side wall and the lower side wall of the vertical beam are respectively provided with one piezoelectric ceramic wafer, and the inner side wall and the outer side wall of the vertical beam are symmetrically provided with two piezoelectric ceramic wafers at the two sides of a thin walled beam. The surface mount type I-shaped four-footed linear ultrasonic motor vibrator provided by the invention can be applied to the field of manufacturing of ultrasonic motors.
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Description

technical field

[0001] The invention relates to a patch type I-shaped quadruped linear 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 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] The publicatio...

Claims

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