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US 2008/0187168 A1Published application
Driver for a speaker
AssigneeDk Signal Ltd.
InventorVu-Quang Dam
Life of this patent
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Abstract
A driver for a speaker including: an upper housing, a lower housing and a vibration device, wherein said upper housing combines with said lower housing to form a chamber therein. The vibration device is received in the chamber. The vibration device is basically constituted with an acoustic phase equalizer, a diaphragm, a flux guiding plate, a magnet and a yoke. By the design of present invention, the disadvantage of poor radiation efficiency in prior art can be improved and extends the operation period.
Claims8
A driver for speaker, including:
- an upper housing and a lower housing, said upper housing combining with said lower housing to form a chamber therein;
- a vibration device being placed in said chamber and said vibration device being constituted with an acoustic phase equalizer, a diaphragm, a flux guiding plate, a magnet and a yoke;
- said yoke provides a recess from top to bottom and said magnet and said flux guiding plate are placed in said recess in order;
- a flange extruding from the topside of said yoke with predetermined thickness;
- the downside shape of the outer wall surface of said yoke matching with portion of the inner wall surface of said lower housing;
- said yoke lodging in said lower housing and the outer wall surface of said yoke staying partially connected to the inner wall surface of said lower housing.
3 more elements
Dependencies are inferred from the claim text.