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Earphone device

An earphone and accommodating cavity technology, which is applied to earpiece/earphone accessories, internal auditory earphones, sensor parts, etc., can solve the problem of not being able to provide users with free adjustment of sound quality effects.

Inactive Publication Date: 2015-06-24
SHENZHEN FUTAIHONG PRECISION IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the sound pressure in the inner cavity of the earphone is fixed, and it is impossible for users to freely adjust it according to their own preferences to obtain better sound quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] see Figure 1-3 , a preferred embodiment of the present invention provides an earphone device 100, which has a sound quality adjustment function. The earphone device 100 includes a housing 10 , a cover 20 , an adjustment structure 30 and a speaker (not shown).

[0016] The casing 10 includes an accommodating chamber 11 and an extension pipe 13 connected with the accommodating chamber 11, the accommodating chamber 11 is used to accommodate the speaker, and the extension pipe 13 is used to accommodate the signal line electrically connected to the speaker (Fig. not shown).

[0017] The cover body 20 is fixedly mounted on the casing 10 , and is set on the accommodating cavity 11 of the casing 10 so that the speaker is installed in the accommodating cavity 11 . The cover body 20 is provided with several sound outlet holes 21 , so that the sound of the speaker can be transmitted through the sound outlet holes 21 .

[0018] The adjustment structure 30 includes a plurality o...

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PUM

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Abstract

An earphone device includes a housing, a speaker diaphragm and a tuner. The housing has an exterior surface and defines an interior cavity. The speaker diaphragm is positioned within the interior cavity and divides the interior cavity into a first chamber and a second chamber. The housing further includes a plurality of openings defined to connect the first chamber to the exterior of the housing, and a plurality of vents defined to connect the second chamber to the exterior surface. The speaker diaphragm is configured to selectively produce sound and sound produced by the speaker diaphragm is acoustically transferred from the first chamber through the openings and away from the housing. The tuner is configured to selectively open and close one or more of the plurality of vents.

Description

technical field [0001] The invention relates to an earphone device, in particular to an earphone device with adjustable sound quality. Background technique [0002] Helmholtz resonance theory (Helmoltz resonance theory) refers to the structure of a rigid volume and a pressure relief hole connected to the outside world, because the air in the cavity is elastic, similar to a spring, the small air column at the pressure relief hole It is equivalent to a quality block and forms an elastic system. When the sound wave is incident on the pressure relief hole, due to the friction and damping at the pressure relief hole, the sound energy is converted into heat energy, thereby consuming the sound energy and having the effect of sound absorption. When the frequency of the incident sound wave is equal to the natural frequency of the resonant structure, the air column at the pressure relief hole resonates, and the vibration velocity at this time is the largest, and the corresponding abs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/10
CPCH04R1/1016H04R1/2811
Inventor 黄柏森
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD
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