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Loudspeaker module and electronic equipment

A loudspeaker module, loudspeaker technology

Active Publication Date: 2018-08-21
GOERTEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, although the sound-absorbing cotton paste method in the prior art can eliminate standing waves to a certain extent, at the same time, it will significantly increase the lowest resonance frequency F0, and the quality factor Q value will be significantly reduced, making it difficult to meet the performance requirements

Method used

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  • Loudspeaker module and electronic equipment
  • Loudspeaker module and electronic equipment
  • Loudspeaker module and electronic equipment

Examples

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Embodiment Construction

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0029] Techniques and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques and devices should be considered part of the description.

[0030] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have different values.

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Abstract

The embodiment of the invention provides a loudspeaker module and electronic equipment. The loudspeaker module comprises a shell and a loudspeaker single body; a closed rear sound cavity is formed between the loudspeaker single body and the shell; a porous first sound absorption material and a porous second sound absorption material are arranged in a resonance region of the rear sound cavity, wherein the first sound absorption material separates the rear sound cavity into a first rear cavity and a second rear cavity, wherein the first rear cavity is close to the loudspeaker single body, and the second rear cavity is far away from the loudspeaker single body; the air flow in the rear sound cavity flows from the first rear cavity to the second rear cavity; and the second sound absorption material located in the second rear cavity is arranged along the airflow direction and is close to the first sound absorption material. According to the technical scheme provided by the embodiment of theinvention, the standing wave can be eliminated, so that the influence degree on F0 and Q values is reduced to obtain better acoustic performance.

Description

technical field [0001] The invention belongs to the technical field of electroacoustic conversion devices, in particular, the invention relates to a loudspeaker module and electronic equipment. Background technique [0002] A speaker module is a device that converts electrical energy into sound energy, and is widely used in electronic devices such as mobile phones and computers. [0003] With the upgrading of electronic products, the design of electronic products such as mobile phones and tablet computers is getting thinner and thinner, and the Z-axis space of speaker module products (the Z-axis size is the height of the speaker module) is getting smaller and smaller. Irregular module back cavity and extreme back cavity height lead to back cavity resonance, generate standing waves, and affect the acoustic performance of the speaker module. In the prior art, in order to eliminate standing waves, sound-absorbing cotton is pasted in the rear cavity. However, although the soun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/02H04R9/06H04R2400/11
Inventor 孙小光邵帅
Owner GOERTEK INC
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