Miniature soundbox with telescopic resonance chamber
A telescopic resonance cavity and micro-speaker technology, applied in piezoelectric/electrostrictive transducer microphones, transducer shells/cabinets/brackets, sensors, etc., can solve the problem of blocking sound, unable to transmit sound far or having better effect and other problems, to achieve the effect of eliminating noise, good sound transmission effect, and preventing debris damage.
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[0019] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.
[0020] The miniature sound box with telescopic resonance cavity of the present invention comprises loudspeaker, sound box upper shell, sound box middle shell, sound box lower shell, audio frequency line, audio plug, circuit board, horn net and telescopic resonance cavity, and the loudspeaker net is circular, and the loudspeaker The net is connected with the upper case of the sound box, and the holes on the net of the speaker gradually increase from the inside to the outside.
[0021] Such as figure 1 The horn net 1 shown is circular, and the center of the horn net 1 is a small circle, and the holes on the horn net 1 outside the small circle gradually increase and increase; and, the holes are circled outwards increase; the holes on the same ring are evenly distributed and equal in size; the holes on the straight line passing through the center...
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