CN109640211B

CN109640211B - Noise reduction earphone

Info

Publication number: CN109640211B
Application number: CN201910124542.2A
Authority: CN
Inventors: 熊剑锋; 陈波
Original assignee: Shenzhen Lankechuang Technology Co ltd
Current assignee: Shenzhen Lankechuang Technology Co ltd
Priority date: 2019-02-19
Filing date: 2019-02-19
Publication date: 2024-03-12
Anticipated expiration: 2039-02-19
Also published as: CN109640211A

Abstract

The invention discloses a noise reduction earphone which comprises an outer shell, an inner shell and a sounding unit arranged in the inner shell, wherein an annular ear pad is arranged at the bottom edge of the outer shell and forms a front cavity, an inner cavity is formed in the inner shell, a rear cavity is formed between the outer surface of the inner shell and the inner surface of the outer shell, a first air guide hole is arranged between the front cavity and the inner cavity to enable the air paths of the outer shell and the inner cavity to be communicated, a second air guide hole is arranged between the front cavity and the rear cavity to enable the air paths of the inner cavity and the rear cavity to be communicated, a third air guide hole is arranged between the inner cavity and the outer part of the outer shell to enable the air paths of the inner shell and the outer shell to be communicated, and tuning paper is filled in each of the first air guide hole, the second air guide hole, the third air guide hole and the fourth air guide hole. The invention has novel structure, and the front cavity, the inner cavity, the rear cavity and the outside air of the earphone are communicated through the air guide hole to realize pressure equalizing, so that the wearing comfort level of a user is improved, the user experience is optimized, and the air guide hole is filled with tuning paper, so that the outside noise can be effectively isolated, and the noise reduction effect is enhanced.

Description

Noise reduction earphone

Technical Field

The invention relates to the technical field of earphone acoustics, in particular to a noise reduction earphone.

Background

The earphone is a pair of conversion units which receive the electrical signals from the media player or receiver and convert them to audible sound waves using a speaker proximate the ear, typically detachable from the media player, and connected by a plug. The advantage is that the sound can be listened to independently without affecting other people; can also isolate the sound of surrounding environment, and is helpful for people in noisy environments such as recording studio, DJ, journey, sports, etc. Headphones have been used for phones and radios, but with the popularity of portable electronic devices, headphones are often used for cell phones, walkman, radios, portable games, digital audio players, and the like.

The rapid development and popularization of portable communication equipment and audio-visual equipment apply, and people are higher and higher to the quality requirement of earphone, and especially to the noise reduction effect of earphone be a key index that measures the earphone quality, the earphone of making an uproar mostly adopts sealed mode to isolate the noise outside at present, but also can produce the inside and outside uneven problem of acoustic pressure of earphone when hearing environment obtains sealedly, influence noise reduction effect, and great acoustic pressure causes the oppression to user's eardrum simultaneously, influences the comfort level.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.

The utility model provides a noise reduction earphone, includes shell, inner shell and installs the sound production unit in the inner shell, the bottom edge of shell is equipped with annular ear pad and forms the front chamber, the inside of inner shell forms the inner chamber, form the back chamber between the surface of inner shell and the internal surface of shell, be equipped with first wind-guiding hole between front chamber and the inner chamber and make both gas circuits switch on, be equipped with the second wind-guiding hole between front chamber and the back chamber and make both gas circuits switch on, be equipped with the third wind-guiding hole between inner chamber and the back chamber and make both gas circuits switch on, be equipped with the fourth wind-guiding hole between back chamber and the shell outside and make both gas circuits switch on, first wind-guiding hole, the second wind-guiding hole, the third wind-guiding hole, all fill in the fourth wind-guiding hole and have tuning paper.

Further, the first air guide hole penetrates through the bottom of the shell and enables the front cavity to be communicated with the inner cavity air passage.

Further, the second air guide hole is connected to the bottom of the outer shell and the top of the inner shell and enables the front cavity to be communicated with the rear cavity air passage.

Further, the third air guide hole penetrates through the top of the inner shell and enables the inner cavity to be communicated with the rear cavity air passage.

Further, the fourth air guide hole penetrates through the top of the shell and enables the rear cavity to be communicated with an air passage outside the shell.

Compared with the prior art, the invention has the beneficial effects that: the invention has novel structure, and the front cavity, the inner cavity, the rear cavity and the outside air of the earphone are communicated through the air guide hole to realize pressure equalizing, so that the wearing comfort level of a user is improved, the user experience is optimized, and the air guide hole is filled with tuning paper, so that the outside noise can be effectively isolated, and the noise reduction effect is enhanced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a noise reduction earphone according to the present invention.

Detailed Description

The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1, a noise reduction earphone includes an outer shell 1, an inner shell 2, and a sound generating unit 21 installed in the inner shell 2, wherein an annular ear pad 3 is provided at the bottom edge of the outer shell 1 and forms a front cavity, an inner cavity is formed in the inner shell 2, a rear cavity is formed between the outer surface of the inner shell 2 and the inner surface of the outer shell 1, a first air guide hole 4 is provided between the front cavity and the inner cavity to conduct the two air paths, a second air guide hole 5 is provided between the front cavity and the rear cavity to conduct the two air paths, a third air guide hole 6 is provided between the inner cavity and the rear cavity to conduct the two air paths, a fourth air guide hole 7 is provided between the rear cavity and the outer shell to conduct the two air paths, and tuning papers 8 are filled in the first air guide hole 4, the second air guide hole 5, the third air guide hole 6, and the fourth air guide hole 7.

Further, the first air guiding hole 4 penetrates through the bottom of the shell 1 and enables the front cavity to be communicated with the inner cavity air path.

Further, the second air guiding hole 5 is connected to the bottom of the outer casing 1 and the top of the inner casing 2, and enables the front cavity and the rear cavity to be in air passage connection.

Further, the third air guiding hole 6 penetrates through the top of the inner shell 5 and enables the inner cavity to be communicated with the rear cavity air channel.

Further, the fourth air guiding hole 7 penetrates through the top of the casing 1 and enables the rear cavity to be communicated with an air passage outside the casing.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The noise reduction earphone comprises an outer shell, an inner shell and a sounding unit arranged in the inner shell, and is characterized in that an annular ear pad is arranged at the bottom edge of the outer shell and forms a front cavity, an inner cavity is formed in the inner shell, a rear cavity is formed between the outer surface of the inner shell and the inner surface of the outer shell, a first air guide hole is arranged between the front cavity and the inner cavity to enable the air paths of the outer shell and the inner cavity to be communicated, a second air guide hole is arranged between the front cavity and the rear cavity to enable the air paths of the inner cavity and the rear cavity to be communicated, a third air guide hole is arranged between the inner cavity and the outer part of the outer shell to enable the air paths of the inner shell and the outer shell to be communicated, and tuning paper is filled in each of the first air guide hole, the second air guide hole, the third air guide hole and the fourth air guide hole;

the first air guide hole penetrates through the bottom of the shell and enables the front cavity to be communicated with the inner cavity air passage;

the second air guide hole is connected to the bottom of the outer shell and the top of the inner shell and enables the front cavity and the rear cavity to be communicated through an air passage;

the third air guide hole penetrates through the top of the inner shell and enables the inner cavity to be communicated with the rear cavity air passage;

the fourth air guide hole penetrates through the top of the shell and enables the rear cavity to be communicated with an air passage outside the shell.