Device for conversion between electrical oscillations and acoust

Details Device for conversion between electrical oscillations and acoust Device for conversion between electrical oscillations and acoust

1993-03-24

1994-08-16

Kuntz, Curtis

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Microphone capsule only

381157, 379433, H04R 2500

Patent

active

053393643

ABSTRACT:
A device for the conversion of electrical oscillations into acoustic waves or the conversion of acoustic waves into electrical oscillations, including an electro-acoustic converter and a housing with two housing shells (1, 2) in the form of plastic moldings. The housing shells fit together and are assembled into a single closed housing assembly with a sound window (8) associated with the electro-acoustic converter, conductive portions of external leads (10) are attached to the housing through contact elements (9) located on one of the shells. A piezoelectric element (4) is combined with a carrier foil (11) which includes a sound membrane (3). The carrier foil includes conductors connected to the piezoelectric element in the form of screen-printed conductive traces (12), the ends of which, remote from the piezoelectric element, are provided with a contact arrangement (14). Other functional components, including the contact elements, are situated on or in the housing shells. The functional components are brought into functional association by joining the housing shells together to form the single housing assembly after inserting the carrier foil with the piezoelectric element into one of the housing shells.

REFERENCES:
patent: 4063049 (1977-12-01), Pipitone et al.
patent: 4295009 (1981-10-01), Weidler
patent: 4594478 (1986-06-01), Gumb et al.
patent: 4984268 (1991-01-01), Brown et al.
patent: 5231659 (1993-07-01), Abraham et al.

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