Earphone
A technology of earphones and shells, applied in the directions of earpieces/earphone accessories, etc., can solve problems such as inconvenience in listening to external sounds, and achieve the effects of simple structure, low cost and high safety
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[0017] An earphone, comprising a housing 1, a speaker 2 located in the housing, a funnel-shaped sound collecting tube 4 for collecting the sound from the speaker is fixed between the speaker and the housing, one end of the sound collecting tube faces the speaker, and the sound collecting One end of the small mouth of the tube is towards the sound outlet 5 of the housing, a cavity is formed between the sound collecting tube and the housing, and the housing is also provided with a sound inlet 3, which communicates with the cavity.
[0018] A plurality of sound inlets are evenly distributed along the circumference of the casing, and a dustproof cover is arranged at the sound inlets.
[0019] Preferably, the outer diameter of the large mouth of the sound collecting tube is greater than or equal to the outer diameter of the earphone speaker.
[0020] When the outer diameter of one end of the large mouth of the sound collecting tube is larger than the outer diameter of the earphone ...
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