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Speaker modules and electronic equipment

A loudspeaker module and loudspeaker technology, applied in the direction of sensors, loudspeakers, electrical components, etc., can solve problems such as difficulty in meeting performance requirements, lower quality factor Q value, and higher minimum resonance frequency F0, so as to avoid large fluctuations, Improve acoustic performance and eliminate standing waves

Active Publication Date: 2020-04-21
GOERTEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Speaker modules and electronic equipment
  • Speaker modules and electronic equipment
  • Speaker modules 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 arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise.

[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit 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 specification.

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

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Abstract

The embodiment of the present invention provides a loudspeaker module and electronic equipment. The loudspeaker module comprises a housing and a loudspeaker unit; a closed rear acoustic cavity is formed between the loudspeaker unit and the housing; a first porous sound absorbing material and a second porous sound absorbing material are disposed in a resonance area of the rear acoustic cavity; the first sound absorbing material partitions the rear acoustic cavity into a first rear cavity close to the loudspeaker unit and a second rear cavity away from the loudspeaker unit, and air currents in the rear acoustic cavity flow to the second rear cavity from the first rear cavity; and the second sound absorbing material located in the second rear cavity is disposed in a direction of the air currents and is disposed close to the first sound absorbing material. According to the technical solution provided in the embodiment of the present invention, the degree of influence on F0 and Q value is reduced while standing waves are eliminated, such that excellent acoustic performance can be achieved.

Description

technical field [0001] The invention belongs to the technical field of electro-acoustic conversion devices, and in particular, the invention relates to a speaker module and electronic equipment. Background technique [0002] Speaker module is a device that can convert electrical energy into sound energy, which 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 dimension is the height of the speaker module) is getting smaller and smaller. The irregular rear cavity of the module and the extreme rear cavity height cause the rear cavity to resonate and generate standing waves, which 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 back ca...

Claims

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Application Information

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