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US 2024/0190697 A1Published application
Electromagnetic Microspeaker, its Coil Module, Speaker/Coil Module Array and Preparation Method Thereof
AssigneeOtowahr Technology Inc.
InventorsYu Min FU, Tung Yu WU, Tse Chih TANG
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Abstract
Disclosed is a coil module, comprising: a vibrating membrane suspended on an air chamber defined and supported by a first substrate, at least one planar coil, embedded in the vibrating membrane, and at least a soft magnet, embedded in the vibrating membrane and disposed surrounding at least a portion of a contour of the planar coil; wherein a substantial portion of the planar coil locates at substantially the same plane where a portion of the soft magnet is arranged. A microspeaker and a method for preparing the same are also disclosed.
Claims57
A microspeaker comprising:
- a coil module, comprising:
- a vibrating membrane suspended on an air chamber defined and supported by a first substrate, and
- at least one planar coil, embedded in the vibrating membrane,
- a second substrate coupling the substrate of the coil module at a side of the air chamber opposite to the vibrating membrane, to support the coil module and at least one hard magnet and to define the air chamber and
- a lid encompassing the vibrating membrane
2 more elements
A microspeaker comprising:
- a coil module, comprising:
- a vibrating membrane suspended on an air chamber defined and supported by a first substrate, and
- at least one planar coil, embedded in the vibrating membrane;
- and
- a second substrate coupling the substrate of the coil module at a side of the air chamber opposite to the vibrating membrane, to support the coil module and to define the air chamber;
- and a lid encompassing the vibrating membrane and at least one hard magnet attached to the lid extending into a space between the lid and the vibrating membrane from a position corresponding to the at least one planar coil.
3 more elements
Dependencies are inferred from the claim text.