Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent
1995-05-23
1998-03-17
Kuntz, Curtis
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
181166, H04R 2500
Patent
active
057296162
ABSTRACT:
According to the state of the art, most centering diaphragms (10) for loudspeakers are made of paper, plastic or textile material. These centering diaphragms (10) furthermore have plastic resin coatings. The attachment of the centering diaphragms (10) to the remaining loudspeaker components is mostly made by adhesive bonding. Although such centering diaphragms exhibit good characteristics at low temperatures, they can no longer be used when the ambient temperatures are above 150.degree. degrees Celsius. The invention therefore proposes to make the centering diaphragm (10) for loudspeakers of metal. If the centering diaphragm (10) is subdivided into at least two individual components (10.1 to 10.4), these individual components (10.1 to 10.4) can be used as contact bridges between the wire ends (28) from the voice coil (24) and the audio signal line (30). If the respective surfaces in the connection areas of the individual components (10.1 to 10.4) and the remaining loudspeaker components (15, 20) are made of aluminum for example, the individual components (10.1 to 10.4), or the centering diaphragm (10), can very easily be joined to the remaining loudspeaker components (15, 20) by ultrasonic welding.
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Barnie Rexford N.
Kuntz Curtis
Nokia Technology GmbH
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