Ear shield and head-mounted noise reduction earphone

A technology of earmuffs and earpads, which is applied to earphones/headphone accessories, etc., can solve problems such as no noise reduction processing, and achieve the effect of reducing negative pressure effect, reducing peak sound pressure level and bandwidth unevenness, and preventing self-excitation.
CN102487469BActive Publication Date: 2014-07-09SHENZHEN GRANDSUN ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN GRANDSUN ELECTRONICS CO LTD
Publication Date
2014-07-09

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Abstract

The invention provides an ear shield and a head-mounted noise reduction earphone using the ear shield, which are applicable to the technical field of electronic products. The ear shield comprises a body having a cavity and an ear pad arranged in edge of the cavity; the ear pad is in an oval ring structure suitable to the shape of an ear; and grid net is arranged in the inner side wall of the ear pad ring structure. In the invention, the inner side of the ear pad is designed into the ventilated grid net; when the ear shield is applied to the earphone, an equivalent volume of the ear shield is increased, so that the needed equivalent volume and an appropriate damping coefficient can be obtained in the ear shield, self-excitation can be prevented, and a negative pressure effect generated under a closed state can be reduced; on the other hand, through the ventilated grid net, a frequency response superimposed effect generated in a coupling or feeding back process can be improved; a sound pressure level peak value and a bandwidth uniformity generated by sound wave reflection can be reduced; simultaneously, the grid net is excellent in ventilation property, and comfortable degree of users when wearing the earphone is greatly improved.
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Description

technical field

[0001] The invention belongs to the technical field of electronic products, and more specifically relates to an earmuff and a head-mounted noise reduction earphone using the earmuff. Background technique

[0002] With the continuous improvement of living standards, listening to music has become a way for people to relieve their mood and reduce stress in their spare time. At the same time, with people's continuous pursuit of high-quality life, people also have higher requirements for the quality of earphones. The manufacturer starts from the combination of humanistic care and health concepts, in order to allow every user to listen to the pure sound of life in a noisy environment, and to protect hearing, and develops intelligent noise-cancelling headphones to meet the needs of consumers. .

[0003] The noise reduction headphones currently on the market mainly achieve noise reduction through internal circuits, but there is no special noise reduction treatment ...

Claims

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