IMPROVED VOICE COIL FOR AN ELECTRODYNAMIC ACTUATOR WITH STACKED CONDUCTIVE LAYERS

A voice coil (4, 4a . . . 4f) for an electrodynamic actuator (6a . . . 6c) is disclosed, which comprises a plurality of conductive open annular strips (15, 15A . . . 15n, 15a . . . 15h) stacked over one another with insulation layers (18) in-between, wherein ends (Ea . . . Eh) of adjacent strips (15...

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Bibliographische Detailangaben
Hauptverfasser:	Nguyen, Hong-Bi Dong, Otto, Gustav
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	A voice coil (4, 4a . . . 4f) for an electrodynamic actuator (6a . . . 6c) is disclosed, which comprises a plurality of conductive open annular strips (15, 15A . . . 15n, 15a . . . 15h) stacked over one another with insulation layers (18) in-between, wherein ends (Ea . . . Eh) of adjacent strips (15, 15A . . . 15n, 15a . . . 15h) overlap in an overlap-ping zone (ZO) when viewed in a direction parallel to a coil axis (CA) and wherein adjacent strips (15, 15A . . . 15n, 15a . . . 15h) are electrically connected to each other in a connection zone (ZC) within the overlapping zone (ZO). Ends (Ea . . . Eh) of the conductive strips (15, 15A . . . 15n, 15a . . . 15h) are embodied as non-straight ends, and positions (P) of connection zones (ZC), which connect different conductive strips (15, 15A . . . 15n, 15a . . . 15h), vary in a direction transversal to the circumferential direction (CD) in the overlapping zone (ZO). Moreover, a manufacturing meth-od for such a voice coil (4, 4a . . . 4f) and an electrodynamic actuator (6a . . . 6c), a speaker (1), an electrodynamic transducer (25a, 25b) and an output device with such a voice coil (4, 4a . . . 4f) are disclosed.