Patent · US Active

Sound transducer, having a transducer element integrated in a vibration-capable diaphragm including an electrically active polymer

US11590533B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Johannes Henneberg · Weil im Schönbuch, DE
Andre Gerlach · Leonberg, DE
Marko Liebler · Bretten, DE

Key dates

Filing date	Mar 23, 2018
Grant date	Feb 28, 2023
Priority date	—
Expiry date	Nov 23, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG10K11/004
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An acoustic transducer, in particular for an ultrasonic sensor, is proposed. The acoustic transducer has a functional group, the functional group encompassing a diaphragm cup and at least one electroacoustic transducer element. The acoustic transducer furthermore has a housing. The diaphragm cup encompasses a vibration-capable diaphragm and an encircling wall, as well as at least one electroacoustic transducer element, the transducer element being embodied to excite the diaphragm to vibrate and/or to convert vibrations of the diaphragm into electrical signals. The diaphragm cup is constituted from a plastic material, the at least one transducer element being integrated into the vibration-capable diaphragm, the transducer element having an electrically active polymer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.