INNER CORE OF LOUDSPEAKER MODULE, LOUDSPEAKER MODULE AND EARPHONE

A kernel of a speaker module, a speaker module, and an earphone are provided and related to the field of electronic product technologies. The kernel includes a first diaphragm assembly, a first voice coil, a magnetic circuit system, a second diaphragm assembly, and a second voice coil. The magnetic...

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Bibliographische Detailangaben
Hauptverfasser:	LI, Yunhai, CHU, Jianfei
Format:	Patent
Sprache:	eng ; fre ; ger
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 kernel of a speaker module, a speaker module, and an earphone are provided and related to the field of electronic product technologies. The kernel includes a first diaphragm assembly, a first voice coil, a magnetic circuit system, a second diaphragm assembly, and a second voice coil. The magnetic circuit system includes a first magnetic portion, a second magnetic portion, and a third magnetic portion. The first magnetic portion surrounds a periphery of the second magnetic portion. The first voice coil cooperates with the first magnetic portion and the second magnetic portion to drive the first diaphragm assembly to vibrate. An inner side of the second magnetic portion includes an accommodating space, and the third magnetic portion is arranged in the accommodating space, and is spaced apart from the second magnetic portion. The second voice coil is fastened to the second diaphragm assembly, and the second diaphragm and the first diaphragm assembly are respectively arranged on two opposite sides of the magnetic circuit system. The second voice coil is a planar voice coil, and the second voice coil cooperates with the second magnetic portion and the third magnetic portion to drive the second diaphragm assembly to vibrate.