Vibration-sound generating device and yoke thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsSeuk-Hwan Chung, Jun-Kun Choi, Sang-Won Kim, Seong-Geun Kim, Seok-Jun Park
Life of this patent
Estimating the term…
Abstract
A vibration-sound generating device and yoke thereof are described. The vibration-sound generating device comprises a diaphragm, a vibration part comprising a magnet and a yoke, which is positioned apart from the diaphragm by a desired distance, a suspension elastically supporting the vibration part, a supporting part supporting the diaphragm and the suspension, and a voice coil electromagnetically driving the diaphragm and the vibration part. The yoke of the invention has higher specific gravity and magnetic permeability than iron. So that it can improve performance of vibration and sound device.
Claims39
A vibration-sound generating device comprising:
- a diaphragm;
- a vibration part comprising a magnet and a yoke which is positioned apart from the diaphragm by a desired distance;
- a suspension elastically supporting the vibration part;
- a supporting part supporting the diaphragm and the suspension;
- and
- a voice coil electromagnetically driving the diaphragm and the vibration part,
- wherein the yoke has higher specific gravity and magnetic permeability than iron.
A vibration-sound generating device comprising:
- a diaphragm;
- a vibration part comprising a magnet and a yoke which is positioned apart from the diaphragm by a desired distance;
- a suspension elastically supporting the vibration part;
- a supporting part supporting the diaphragm and the suspension;
- a voice coil electromagnetically driving the diaphragm;
- and
- a vibration coil electromagnetically driving the vibration part,
- wherein the yoke has higher specific gravity and magnetic permeability than iron.
A yoke used for vibration-sound generating device, having
- higher specific gravity and magnetic permeability than iron.
Dependencies are inferred from the claim text.