Sound production device and electronic equipment
The invention discloses a sound production device and electronic equipment, and relates to the technical field of electroacoustic transduction, the sound production device comprises a magnetic circuit system and a vibration system, an edge magnetic part of the magnetic circuit system is located at t...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a sound production device and electronic equipment, and relates to the technical field of electroacoustic transduction, the sound production device comprises a magnetic circuit system and a vibration system, an edge magnetic part of the magnetic circuit system is located at the outer side of a central magnetic part and forms a magnetic gap, the central magnetic part comprises a first magnetic group, a second magnetic group and a third magnetic group which are stacked, the first magnetic group is connected to a magnetic conductive yoke, and the second magnetic group is connected to a magnetic conductive yoke. A voice coil of the vibration system is arranged corresponding to the magnetic gap; the central magnetic part further comprises a fourth magnetic group arranged in the containing cavity, the first magnetic group and the third magnetic group are magnetized in the vibration direction of the vibration system, and the second magnetic group and the fourth magnetic group are magnetized i |
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