Loudspeaker die set

Abstract

The invention discloses loudspeaker die set, and relates to the technical field of electroacoustic products. The loudspeaker die set comprises a housing in which a single loudspeaker body is contained; the single loudspeaker body comprises a vibrating system and a magnetic circuit system; an inner cavity of the whole die set is divided into two cavities, namely, a front vocal cavity and a rear vocal cavity, through the single loudspeaker body; a sound absorbing material is positioned in the rear vocal cavity; a separating structure for separating the sound absorbing material and the single loudspeaker body is also arranged in the rear vocal cavity; the whole rear vocal cavity is divided into a filling area and a non-filling area through the separating structure; the sound absorbing material which is foaming material is positioned in the filling area; the sound absorbing material is filled by foaming the foaming material and fully filled in the filling area. With the adoption of the loudspeaker die set, the technical problems of poor consistency and high production cost of the loudspeaker die set product in the prior art can be solved; the loudspeaker die set is high in acoustic performance, high in production efficiency, small in production cost, and high in product consistency.

Description

technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to a loudspeaker module. Background technique [0002] The loudspeaker module is an important acoustic component of portable electronic equipment, which is used to complete the conversion between electrical signals and sound signals, and is an energy conversion device. Existing speaker modules usually include a shell, in which a speaker unit is accommodated, and the speaker unit divides the entire module inner cavity into two cavities, a front acoustic cavity and a rear acoustic cavity. In order to reduce the F0 (low frequency) of the module and expand the bandwidth, technicians usually add sound-absorbing cotton in the rear acoustic cavity. The sound-absorbing cotton can effectively reduce the F0 of the module and make the intermediate frequency curve smoother. It is an important part of the speaker module. an important part. The effect of sound-absorbing cotton ...

AI Technical Summary

Problems solved by technology

[0003] At this stage, the rear acoustic cavity of the speaker module is usually irregular in shape, and the thickness of the existing sound-absorbing cotton is fixed. If you want to fill the sound-absorbing cotton with a fixed thickness into this undulating rear acoustic cavity, you can only use multiple sound-absorbing foams. The method of pasting and patching the sound-absorbing cotton to ensure that the sound-absorbing cotton is compatible with the rear acoustic cavity, but this method makes it difficult to control the fit between the sound-absorbing cotton and the shell, and the compression ratio of the sound-absorbing cotton, resulting in poor consistency of the modules ; and this method can only be pasted manually, the labor intensity of the workers is high, and the operation is difficult, resulting in high labor costs, resulting in high production costs and low production efficiency

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