Moving magnet audio transducer
First Claim
Patent Images
1. A consumer electronic device, comprising:
- a processor, a memory, a display, and a user interface;
an enclosure partially formed by an outer wall of the device and surrounding the processor, memory, display, and user interface; and
an audio transducer havinga stable surface being a portion of one wall of the enclosure;
an electromagnetic coil that is affixed to the stable surface;
a magnet in electromagnetic communication with the coil such that the magnet moves and the coil remains substantially stationary when the coil is energized;
a diaphragm the entirety of which is a portion of the outer wall of the device, wherein the magnet is affixed to the diaphragm; and
a first alignment element attached to the stable surface and a second alignment element attached to the diaphragm, wherein the first alignment element and the second alignment element abut each other to maintain a spatial relationship between the coil and the magnet, wherein the first alignment element is a cylindrical wall that encloses the coil.
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Abstract
An electronic device having an enclosure including an upper panel and a bottom panel operably connected to the upper panel. A transducer is operably connected to the enclosure and the transducer is configured to mechanically vibrate the enclosure. The transducer includes a magnet, an electromagnetic coil and a retention element maintaining a relationship between the magnet and the electromagnetic coil.
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Citations
14 Claims
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1. A consumer electronic device, comprising:
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a processor, a memory, a display, and a user interface; an enclosure partially formed by an outer wall of the device and surrounding the processor, memory, display, and user interface; and an audio transducer having a stable surface being a portion of one wall of the enclosure; an electromagnetic coil that is affixed to the stable surface; a magnet in electromagnetic communication with the coil such that the magnet moves and the coil remains substantially stationary when the coil is energized; a diaphragm the entirety of which is a portion of the outer wall of the device, wherein the magnet is affixed to the diaphragm; and a first alignment element attached to the stable surface and a second alignment element attached to the diaphragm, wherein the first alignment element and the second alignment element abut each other to maintain a spatial relationship between the coil and the magnet, wherein the first alignment element is a cylindrical wall that encloses the coil. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for producing audible sound, comprising the operations of:
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energizing an electromagnetic coil in a consumer electronic device thereby causing a magnet to move in response, wherein the coil is affixed to a stable surface; transferring a motion of the magnet to a diaphragm through a mechanical connection between the diaphragm and the magnet, thereby creating an audible sound, wherein the entire diaphragm is integral to an outer housing wall of the consumer electronic device; and maintaining alignment of the coil and the magnet while the coil is energized through a first alignment element and a second alignment element that abut each other, wherein the first alignment element is attached to the stable surface and the second alignment element is attached to the diaphragm, wherein the first alignment element is a cylindrical wall that encloses the coil. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification