Ultrasonic transducer

Abstract

The invention discloses an ultrasonic transducer. The ultrasonic transducer comprises a shell, a vibration sheet, piezoelectric ceramics, a circuit board and dehumidification layers, wherein the vibration sheet, the piezoelectric ceramics and the circuit board are sequentially arranged in the shell; the dehumidification layers are separately arranged outside the circuit board and on the outer layer of the shell; and the dehumidification layers are made of high-activity adsorbing material silica gel. Through the above mode, the ultrasonic transducer is simple in structure; the dehumidification layers are arranged on the outer side of the whole base body, so that a damp-proof mildew-proof drying effect is achieved, and the phenomenon that humidity or water drops are adhered to the surface of the transducer because the humidity of the environment is too high, and accordingly a series of problems of transducer damage and short circuits are caused is avoided; equivalently, a effect of carrying a desiccant with the transducer is realized; the transducer is more durable and safe; the service is life of the transducer is longer; and certain economical benefit and market prospect are provided.

Description

technical field [0001] The invention relates to the field of ultrasonic electrical appliances, in particular to an 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. As far as the prior art is concerned, during the use of the ultrasonic transducer, moisture and water droplets are usually attached due to excessive environmental humidity, which will affect the use of the transducer for a long ...

AI Technical Summary

Problems solved by technology

As far as the existing technology is concerned, during the use of the ultrasonic transducer, moisture and water droplets are usually attached due to excessive environmental humidity, which will affect the use of the transducer for a long time, and there are also certain safety hazards

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