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Sound-generating device, acoustic module and electronic equipment installed with the sound-generating device

A sounding device and electronic equipment technology, applied in the field of acoustics, can solve the problems of affecting the service life of the sounding unit, failing to improve the low-frequency range, and damaging the acoustic performance of the sounding unit, so as to improve the low-frequency sensitivity, suppress polarization, and increase the equivalent volume. Effect

Active Publication Date: 2021-07-13
GEER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are problems in the above two methods. The first method of adding sound-absorbing materials to the cabinet needs to achieve good sealing and packaging of the sound-absorbing materials. Otherwise, if the sound-absorbing materials enter the sound-generating unit, it will damage the acoustic performance of the sound-generating unit and affect the sound-generating unit. service life; the second scheme using a passive radiator can only improve the sensitivity of the frequency band near the resonance point, but cannot improve the sensitivity of all low frequency bands

Method used

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  • Sound-generating device, acoustic module and electronic equipment installed with the sound-generating device
  • Sound-generating device, acoustic module and electronic equipment installed with the sound-generating device

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Embodiment Construction

[0026] 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.

[0027] 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.

[0028] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0029] 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 dif...

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Abstract

The invention provides a sounding device, which includes a vibrating assembly and a magnetic circuit assembly, the vibrating assembly includes a diaphragm, wherein the middle area of ​​the magnetic circuit assembly is hollowed out to form an expansion cavity that runs through the magnetic circuit assembly, and the magnetic circuit A flexible deformation part is provided on the component located in the expansion cavity; the flexible deformation part covers the port of the expansion cavity or the flexible deformation part separates the expansion cavity into two isolated areas; The flexible deformation part is arranged facing the diaphragm; the diaphragm includes a diaphragm body and a composite layer, the composite layer is combined with the middle position of the diaphragm body, and the composite layer is provided with a direction to A connecting part extending from one side of the flexible deformation part and connected with the flexible deformation part; the flexible deformation part vibrates synchronously with the diaphragm. The sound generating device increases the equivalent volume of the sound cavity behind the sound generating device, improves the low-frequency sensitivity of the sound generating device, and can suppress the polarization of the diaphragm.

Description

technical field [0001] The present invention relates to the technical field of acoustics, and more specifically, to a sound generating device, an acoustic module and electronic equipment equipped with the sound generating device. Background technique [0002] Generally speaking, the acoustic system of the traditional structure includes a closed box and a sounding unit arranged on the closed box. A cavity is formed between the closed box and the sounding unit. Due to the volume limitation of the cavity in the acoustic system, the acoustic system Especially with small acoustic systems it is difficult to achieve satisfactory bass reproduction. Conventionally, in order to achieve satisfactory bass reproduction in an acoustic system, two methods are usually used. One is to place sound-absorbing materials in the box of the acoustic system to absorb or desorb the gas in the box and play a role in volume. The effect of increasing and then reducing the low-frequency resonance freque...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06H04R9/02H04R7/14
CPCH04R7/14H04R9/025H04R9/06
Inventor 葛连山王兴龙
Owner GEER TECH CO LTD
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