Sound-generating devices and electronic equipment
By using a large-mass magnet as a vibrating component in the sound-generating device, low-frequency performance is improved, the problem of limited rear cavity volume is solved, and a highly efficient low-frequency sound generation effect is achieved, avoiding the cost of increasing the rear cavity volume or filling it with sound-absorbing particles.
CN119521101BActive Publication Date: 2026-05-26VIVO MOBILE COMM CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- VIVO MOBILE COMM CO LTD
- Filing Date
- 2024-11-27
- Publication Date
- 2026-05-26
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Figure CN119521101B_ABST
Abstract
This application discloses a sound-generating device and an electronic device. The sound-generating device includes a device housing and a voice coil and a vibration assembly disposed within the inner cavity of the device housing. The vibration assembly includes a first magnet, a second magnet, and an elastic base. The elastic base divides the inner cavity into a mutually isolated front cavity and a rear cavity. The first magnet and the second magnet are disposed on the elastic base, with the first magnet surrounding the second magnet, forming a magnetic gap between the first magnet and the second magnet. A first end of the voice coil is connected to the device housing, and a second end of the voice coil extends into the magnetic gap. The voice coil is used to drive the vibration assembly to vibrate through magnetic cooperation with the first magnet and the second magnet when energized. The above solution can solve the problem of poor design feasibility in related technologies that involve increasing the volume of the rear cavity or filling the rear cavity with sound-absorbing particles.
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