Miniature sound box provided with telescopic resonance cavity

A technology of telescopic resonance cavity and miniature speaker, which is applied in the direction of transducer housing/cabinet/bracket, sensor, electrical components, etc., can solve the problems of unreliable fixing, and achieve the effect of reliable connection and fixing, not easy to shake

Inactive Publication Date: 2014-02-19
刘骏涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually the speaker is placed inside the upper casing of the speaker, and the surface of the speaker is directly connected to the upper casing of the speaker, so the fixation is not reliable

Method used

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  • Miniature sound box provided with telescopic resonance cavity
  • Miniature sound box provided with telescopic resonance cavity

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Experimental program
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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0019] The miniature sound box with telescopic resonance cavity of the present invention comprises sound box upper shell, sound box middle shell, sound box lower shell, audio frequency line, audio plug, loudspeaker, circuit board, telescopic resonance cavity, and loudspeaker is positioned at sound box upper shell interior, as figure 1 As shown, there is an annular boss 2 in the upper part of the upper shell 1 of the sound box, the inner diameter of the boss 2 is smaller than the inner diameter of the horn, and the outer diameter of the boss 2 is larger than the inner diameter of the horn (the horn is not shown).

[0020] The sound outlet of the bell mouth is connected with the boss 2 in the upper case 1 of the sound box. The upper case 1 of the sound box is provided with a sound hole 3 . The sound outlet of the horn mouth is connected with th...

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PUM

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Abstract

A miniature sound box with a telescopic resonance cavity. The miniature sound box with the telescopic resonance cavity comprises a sound box upper case (1), a sound box middle case, a sound box lower case, an audio line, an audio plug, a loudspeaker, a circuit board, and the telescopic resonance cavity. The loudspeaker is located inside the sound box upper case (1), and an annular boss (2) is disposed in an upper part of the sound box upper case (1). An inner diameter of the boss (2) is less than that of the loudspeaker, and an outer diameter of the boss (2) is greater than the inner diameter of the loudspeaker. The miniature sound box can make the fixing between the loudspeaker and the sound box upper case (1) secure and reliable, and can make the loudspeaker not easy wobble.

Description

technical field [0001] The invention relates to the field of miniature sound boxes, in particular to a miniature sound box with a telescopic resonance cavity. Background technique [0002] I have applied for a miniature speaker with a telescopic resonance cavity. The patent application number is 201220390944.0. The miniature speaker includes a speaker upper shell, a speaker middle shell, a speaker lower shell, an audio cable, an audio plug, a speaker, a circuit board and a telescopic resonance cavity. , the loudspeaker, the circuit board and the telescopic resonance cavity are located in the sound box housing, and the audio cable is connected with the audio plug and the circuit board. Usually the speaker is placed inside the upper shell of the speaker, and the surface of the speaker is directly connected to the upper shell of the speaker, so the fixation is not reliable. Contents of the invention [0003] The technical problem to be solved by the present invention is to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/02H04R1/04
CPCH04R1/021H04R1/2811
Inventor 刘骏涛
Owner 刘骏涛
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