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Electronic device with loudspeaker module

A technology for electronic equipment and loudspeakers, applied in the direction of transducer shell/cabinet/stand, sensor, electrical components, etc., to achieve the effect of reducing displacement requirements and low physical quality

Pending Publication Date: 2022-04-01
AAC MICROTECH CHANGZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fundamental limitations of portable equipment, it is difficult to achieve high efficiency and good extended low frequency response in a very small package

Method used

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  • Electronic device with loudspeaker module
  • Electronic device with loudspeaker module
  • Electronic device with loudspeaker module

Examples

Experimental program
Comparison scheme
Effect test

no. 3 example

[0042] The second and third embodiments described above have the following main advantages:

[0043] Increased low-frequency output and reduced displacement compared to speaker modules sealed on their backside;

[0044] No additional output port is required to output low frequency;

[0045] Low-frequency vibrations can be used to enhance haptic effects;

[0046] Since the displacement for a given low frequency sound output is reduced compared to a loudspeaker module sealed at its back, distortion of high frequency modulation due to diaphragm movement is also reduced.

[0047] The combined effect of boosted low frequency output and significantly reduced displacement means that the acoustic output achievable from embodiments of the present disclosure is much greater than that achievable from conventional sealed speaker modules in portable devices.

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Abstract

The electronic equipment comprises a shell, the shell is provided with a cavity and a first output port, and the cavity is communicated with the outside of the shell through the first output port; and the loudspeaker module is arranged in the cavity. The loudspeaker module comprises a first front cavity communicated with the first output port, a second front cavity acoustically connected with the inner space of the shell, a rear cavity, a transducer arranged between the first front cavity and the rear cavity, and a first passive radiator arranged between the second front cavity and the rear cavity. The passive radiator is capable of radiating low-frequency sound into the interior space of the housing through the second front cavity and the interior port or the second passive radiator. And low-frequency sound is radiated to the external environment again through the surface of the shell and possible leakage points in the shell, so that the low-frequency effect is improved.

Description

technical field [0001] The invention relates to the technical field of electroacoustic transducers, in particular to an electronic device with a loudspeaker module. Background technique [0002] In conventional speaker modules for portable devices (such as mobile phones, tablets / PADs, etc.), the rear cavity of the module is usually sealed to prevent sound from radiating from the rear side of the speaker module to the internal space of the portable device. However, due to the fundamentals of portable equipment, it is difficult to achieve high efficiency and good extended low frequency response in a very small enclosure. [0003] Accordingly, it would be desirable to provide an improved speaker module for a portable electronic device. Contents of the invention [0004] The present invention provides an electronic device, which includes: a casing, a cavity and a first output port, the first output port communicates the cavity with the outside of the casing; and a speaker mod...

Claims

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Application Information

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IPC IPC(8): H04R1/28
CPCH04R2499/11H04R1/2834H04R1/2842H04R1/021H04R1/283H04R9/06
Inventor 提摩.拉姆拜葛朱哈·贝克曼
Owner AAC MICROTECH CHANGZHOU