Horn type loudspeakers
OwnerKuang-Yao Lininventor
Life of this patent
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Abstract
A horn type loudspeaker comprises a drive unit, which is largely the same in structure and features as the conventional drive unit, and a horn member specially designed to effectively minimize its size and weight. Said horn member comprises a hollow disk mounting case with its inner periphery corresponding to a fixing plate of the drive unit engaged thereon, a reflection cover with a tip on its inner surface pointing downwardly towards the central portion of a hole located at the fixing plate connected to the upper inner surface of said mounting case with a plurality of discharge openings uniformly located around the outer periphery so as to overcome the restriction of the standard sizes and have a size and weight small and light enough for miniature applications such as for pocket-size security alarms.
Claims4
In a loudspeaker having a drive unit including a yoke, a center pole extending from the yoke, a magnet disposed around the center pole so as to define a first air space therebetween, a guide ring disposed around the center pole so as to define a second air space therebetween, a diaphragm extending over and spaced from the center pole and a voice coil attached to the diaphragm and extending into the second air space, the improvements comprising:
- (a) a fixing plate extending over, but spaced from the diaphragm such that the diaphragm is located between the fixing plate and the center pole, the fixing plate defining a central hole therethrough;
- and,
- (b) a reflection cover extending over, but spaced from the fixing plate, the reflection cover having a curved cross-sectional configuration with a protruding tip located adjacent to the central hole of the fixing plate wherein the reflection cover defines a plurality of discharge openings uniformly located around an outer periphery.
Dependencies are inferred from the claim text.