Loudspeaker for car roof alarm lamp

A loudspeaker for a car roof alarm lamp comprises a magnetizer, a permanent magnet, a front magnetizer, a voice coil, a vibrating diaphragm, a phase modulator, a voice diaphragm cover and a wiring terminal. The car roof alarm lamp has the advantages that the whole car roof alarm lamp is of a long st...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN QUANJIANG, WU LIANGQI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PERFORMING OPERATIONS PUBLIC ADDRESS SYSTEMS TRANSPORTING VEHICLES IN GENERAL
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