Novel ultrasonic transducer

Abstract

The invention discloses a novel ultrasonic transducer which comprises a seat body, a vibrating piece, piezoelectric ceramic, a vibration isolating and sound absorbing layer and a drying and moisture absorbing layer. The vibrating piece is arranged on the upper surface of the seat body. A first wire is led out of the seat body. The piezoelectric ceramic is arranged on the lower surface of the vibrating piece. The vibration isolating and sound absorbing layer is arranged on the lower surface of the piezoelectric ceramic. A second wire is led out of the piezoelectric ceramic. The drying and moisture absorbing layer wraps the periphery of the seat body and the lower surface of the vibration isolating and sound absorbing layer. By means of the manner, the novel ultrasonic transducer is simple in structure; due to the fact that the vibration isolating and sound absorbing layer is arranged, vibration is effectively controlled, and generation and spreading of noise are effectively reduced; the drying and moisture absorbing layer wraps the outer side, the moisture-proof and mildew-proof drying effect is achieved, and the phenomenon that moisture or water drops are attached to the surface of the transducer due to too high environment humidity, and consequently a series of problems of damage of the transducer and short circuits are caused is avoided; and performance is superior and novel, and certain economic benefits and market prospects are achieved.

Description

technical field [0001] The invention relates to the field of ultrasonic electrical appliances, in particular to a novel ultrasonic transducer. Background technique [0002] Ultrasonic transducers are devices that use the piezoelectric effect of ceramics to convert mechanical vibrations generated by ultrasonic waves into electrical signals or generate mechanical vibrations under the drive of an electric field to emit ultrasonic waves. Because of its good transducing characteristics, it is widely used in the field of household water meter detection. Commonly used ultrasonic transducers include a housing, piezoelectric ceramics placed in the housing, and vibrating plates installed close to the piezoelectric ceramics to amplify the received ultrasonic waves. [0003] At present, as far as the prior art is concerned, when the ultrasonic transducer emits ultrasonic waves, due to the vibration of the piezoelectric element, the entire base will vibrate and generate ultrasonic waves...

AI Technical Summary

Problems solved by technology

[0003] At present, as far as the prior art is concerned, when the ultrasonic transducer emits ultrasonic waves, due to the vibration of the piezoelectric element, the entire base will vibrate and generate ultrasonic waves. Moreover, due to the vibration of the piezoelectric element and the base, the transducer will When working, there will be a certain amount of noise. In addition, during the use of the ultrasonic transducer, moisture and water droplets will usually adhere to it due to excessive environmental humidity, which will affect the use of the transducer for a long time, and there is also a certain degree of safety. Hidden danger

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