DUST PROTECTION OF SOUND TRANSDUCER

An apparatus comprising a housing comprising a sound hole, a sound transducer in the housing, where the sound transducer comprises a permanent magnet, and a magnetic dust collection system for collecting dust which enters the sound hole and preventing the dust from reaching the sound transducer. The...

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Bibliographische Detailangaben
Hauptverfasser:	SOININEN TONI, SORONEN PETRI, HUTTUNEN HEIKKI, KELLONIEMI MARKO
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	CALCULATING COMPUTING COUNTING DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PHYSICS PUBLIC ADDRESS SYSTEMS TELEPHONIC COMMUNICATION
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Beschreibung
Zusammenfassung:	An apparatus comprising a housing comprising a sound hole, a sound transducer in the housing, where the sound transducer comprises a permanent magnet, and a magnetic dust collection system for collecting dust which enters the sound hole and preventing the dust from reaching the sound transducer. The magnetic duct collection system comprises a dust barrier between the sound hole and the permanent magnet and a magnetic field of the permanent magnet being orientated across a sound aperture, formed by the housing and the dust barrier, to magnetically pull dust against the dust barrier.