Horn sealing structure and its processing method

Abstract

The invention provides a horn seal structure and a processing method thereof. The horn seal structure comprises a horn, a first shell, a second shell and a third shell. The first shell and the second shell are fixedly connected, the back face of the horn, the first shell and the second shell form a rear sound cavity, the second shell and the third shell are fixedly connected, and the front face of the horn, the second shell and the third shell form a front sound cavity. In the processing method of the horn seal structure, the first shell and the second shell are fixedly connected in an ultrasonic welding mode, the horn is fixed, and the rear sound cavity is sealed. The horn seal structure reduces the entire thickness of mobile terminal equipment, the horn and a sound-out opening can be arranged more freely, and the influence of salt mist, sand dust and the like can be more effectively resisted. The processing method of the horn seal structure can effectively avoid resonance between the horn and the shells.

Description

technical field [0001] The invention particularly relates to a horn sealing structure and a processing method thereof. Background technique [0002] Existing mobile terminal equipment, in order to adapt to the market, the overall thickness is getting thinner and thinner, and the screen is getting bigger and bigger, which leaves less and less space for the speakers, resulting in insufficient sound chambers behind the speakers, and the sound from the speakers has the disadvantage of resonance , the position and shape of the sound hole are also limited, causing defects in visual appearance and auditory enjoyment. [0003] Such as figure 1 As shown, the existing speaker sealing structure generally installs the speaker 11 on a PCB (printed circuit board), so that the superposition of the speaker 11 and the PCB 12 makes the thickness of the entire mobile terminal device thicker, which is difficult to meet the requirement of thinning the thickness. Simultaneously, just because th...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a horn sealing structure and its processing in order to overcome the defects in the prior art that the thickness of the horn sealing structure is relatively thick, the installation position is limited, it is easily affected by salt spray, sand and dust, and resonance is easy to occur. method

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