Screening can and telephone receiver thereof

Abstract

The invention relates to a screening can and a telephone receiver of the screening can. The screening can comprises a bottom box and a box cover, wherein the box cover is arranged on the top of the bottom box, a step is arranged inside the bottom box and divide the bottom box into a bottom box front cavity and a bottom box rear cavity, and the step forms an angle A with the panel. According to the screening can, the step is aslant arranged in the bottom box, so that the size of the bottom box front cavity is reduced, the high frequency output of the telephone receiver is suppressed, dentals of the voice frequency is reduced, and sounds are improved. Through holes are formed in a vibrating diaphragm, so that the weight of the vibrating diaphragm of the telephone receiver is reduced, the high frequency output of the telephone receiver is improved, and the responsive bandwidth of the telephone receiver is increased. Holes capable of opening and closing are formed in a circuit board body, the structure is simple and reasonable, the low frequency output can be improved, and the output of voice is enriched. The telephone receiver is more convenient to use and meets the needs of people in daily life.

Description

technical field

[0001] The invention relates to a shielding shell and a receiver thereof, in particular to a shielding shell and a receiver for enhancing high frequency and low frequency. Background technique

[0002] Modern life is full of various portable electronic products with sound-generating functions, such as mobile phones, electronic dictionaries, digital recorders, and handheld game consoles. Since the above-mentioned products are very small in size and tend to become smaller and smaller, the space planned for the installation of the receiver on each body is also very limited; however, the installed receiver still hopes to make the best use of it under the restricted conditions. best performance.

[0003] Generally, the receiver includes a receiver housing body and a circuit board installed on the outer wall of the receiver housing body. A moving iron sound transmission unit is arranged in the receiver housing body. The moving iron sound transmission unit includes...

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