CN206728236U - A kind of preceding adjustable insert earphone of operatic tunes degree of being environmentally isolated - Google Patents

Abstract

A kind of preceding adjustable insert earphone of operatic tunes degree of being environmentally isolated, belong to machinery and technical field of acoustics；Its structure cage structure includes：Pleasant piston part, front cavity, rear chamber, ante-chamber environment hole, environment hole shielding plate or batching pig are also or ante-chamber slide plate, micro- loudspeaker, speaker leads, plug；Change the exposed area of ante-chamber environment hole (3), the loudness that regulation outside environmental sounds are passed to human ear by insert earphone is played, so as to change the loudness value that human ear hears outside environmental sounds；Bigger to the isolation capacity of the sound of outside when the area that ante-chamber environment hole is blocked is bigger, isolation is higher；Can or batching pig rotationally isolated by front cavity plug it is isolated also or ante-chamber slide plate displacement is isolated carries out isolation control, can be widely applied in all kinds of insert earphones.

Description

A kind of preceding adjustable insert earphone of operatic tunes degree of being environmentally isolated

[technical field]

The invention belongs to physical acoustics and construction applications, are specifically to change the operatic tunes before insert earphone by mechanical switch To the degree of isolation of ambient noise, according to circumstances the high-quality to adjust to music appreciates (high ambient noise isolation) or simultaneously Also the needs of browsing environment sound (low isolation).

[background technology]

Earphone is divided into open earplug machine and built-in earplug machine:

Open earpiece just without too many soundproof effect, is not heard substantially if you open very loud noise certainly yet The external world speaks, but this more injures ear, and it is the most suitable that it is still used for listening at home.Open HiFi earphones are more suitable for occupying Family enjoys high-quality music and closed earphone is then easier to allow sound to be gathered, and possesses preferable soundproof effect, Main flow is still accounted in the outgoing environment listened to.But it is worth noting that being not only headphone, outgoing carry is best suitable for Earplug also possess closing and opening divides

In-Ear Headphones when in use can ear canal, obstruct external environment sound, sound is fully inputted into duct.Actually This has no theoretical foundation.As In-Ear Headphones, millet piston 2.0 takes safeguard procedures to user's ear, allows user Hearing can be taken into account while music is appreciated.Concrete case is made a concrete analysis of, now we just dissect this seem it is simple but Actual and remarkable and wheezy topic.

In-Ear Headphones brief introduction:In-Ear Headphones, also known as ear-canal earphones, built-in earplug or In-Ear monitor are (i.e. IEM English full name：In-Ear-Monitor), it is a kind of earphone inside human body hearing organ.With opening, semi-open The difference that formula earphone is compared is in In-Ear Headphones are inserted in duct with colloid chock plug, to obtain more preferable seal, in body Product can't sacrifice tonequality while smaller, substantially increase the expression effect of earphone.

The function of In-Ear Headphones:Generally provide two kinds of functions：Reduce interference of the ambient noise to music.Noisy Environment in (such as：The public places such as subway, bus, street), relatively low volume can be used, insusceptibly appreciate sound It is happy；And the conduit of In-Ear Headphones will be connected with ear muff insertion duct first half area, so as to create a kind of hearing ring of sealing Border, greatly reduce Lou sound phenomenon.This can increase the texture of low frequency and amount is felt, and enhance the performance to music detail.

In-Ear design enhancing isolation:Human ear has a characteristic：Slight sound can be told in the environment of quietness Sound, but in a noisy environment, these slight sound will be flooded and not hear by brouhaha.It is this due to first The presence of sound and the phenomenon that improves second sound threshold of audibility is called " masking effect ".Common human ear is only to most obvious sound Reaction is sensitive, and then less sensitive for unconspicuous sound, reaction.By taking figure below as an example, in the audible frequency range of human ear Interior, threshold audiogram uniformly improves with the increase of noise intensity；Threshold audiogram in below 500Hz be it is horizontal, 500Hz with On just step up, about 10dB is lifted in 1KHz-10KHz frequency ranges, close to every 10 overtones band 10dB slopes rise Straight line, in real life, we can often run into the public transit clan for wearing open earpiece, and the people around music in earphone is It can hear, it is seen that volume is big！Reason is, when being in using non-In-Ear Headphones in noisy environment (such as：Subway, public transport, street Road etc.), hearing will be disturbed by noisy environment sound around, and the sound intensity heard diminishes, definition reduces, and human ear is to sound Response sensitivity also decrease, cause user and obtained by increasing volume more complete, clearly sound details；Work as increasing Big volume exceedes certain limit, and sound becomes mixed, and definition is begun to decline on the contrary, and user continues to increase volume to listen voiceless sound Happy details.If listening the equal volume of music in the street with daytime, earsplitting volume can make one to being listened again during night peace and quiet It is surprised.Music loudness will produce infringement (with reference to following two table) more than 90dB to human ear hearing, high-decibel audition if things go on like this, Nature can produce infringement to human ear, cause hearing loss.

[content of the invention]

The object of the invention：Improve In-Ear Headphones construction；Can meet to appreciate the high-quality of music (high ambient noise every From degree), and can also meet the needs of browsing environment sound (low isolation) simultaneously；When it is heavy ooze in music song quality when, close Batching pig is closed, environmental noise now is splendid by high degree of isolation, tonequality；When also wanting concern for the environment sound simultaneously, isolation is opened Plug, environment sound source now are isolated by minuent, and music is the needs browsed.Can easily it be switched between 2, even The isolation continuously adjustabe of environmental noise.

Feature of the present invention：Simple possible, almost without cost.

Embodiments of the present invention：The communication passage with environment is established in the preceding sound chamber of In-Ear Headphones, and can closed Function and quality of the insert earphone as each space of resonance audio amplifier are reduced after environment passage；The space independence before and after loudspeaker In the case of the insert earphone of loudspeaker box structure, it is necessary to which batching pig also separates the sky before and after loudspeaker when separating external environment condition passage Between passage.

The isolation method of environment passage can be：Front cavity is rotationally isolated, ante-chamber plug plugs isolated and ante-chamber slide plate Displacement is isolated.

Essential structure：Insert earphone structure is divided into：Pleasant piston part, front cavity, rear chamber, ante-chamber environment hole, environment hole are blocked Piece, ante-chamber slide plate, batching pig, micro- loudspeaker, speaker leads, plug etc. form；Basic functional principle is：Plug is by electric signal It is transferred to micro- loudspeaker, the sound of micro- loudspeaker is by the pleasant fractional transmission of insert earphone to the earhole of people, front cavity and back cavity Body portion plays a part of the front and rear sound chamber of audio amplifier；Rotation and or batching pig or ante-chamber of the ante-chamber environment hole by front cavity The plug or displacement of slide plate, to change the exposed area of ante-chamber environment hole, play regulation outside environmental sounds and passed by insert earphone Enter the loudness of human ear, so as to change the loudness value that human ear hears outside environmental sounds；When the area that ante-chamber environment hole is blocked Bigger to the isolation capacity of the sound of outside when bigger, isolation is higher.

Its most basic architectural feature is：Ante-chamber environment hole is machined with the front cavity of insert earphone；Ante-chamber environment hole The change of logical sound area is to pass through:Front cavity itself is relative with environment hole shielding plate to change it relative to the rotation of rear chamber Position, environment hole shielding plate be with the inwall of front cavity be in close contact sheet structure, environment hole shielding plate be with rear chamber or Micro- loudspeaker is connected and fixed, and remains stationary is motionless；So different relatively rotation place of front cavity, so that it may continuously to change Changing environment hole shielding plate is the shielded area with ante-chamber environment hole, until blocking completely；Either front cavity does not rotate, before use Chamber slide plate or batching pig block ante-chamber environment hole, can equally change sound isolation.

Further:Above-mentioned ante-chamber environment hole can process the sideway stance or end face area in front cavity.Rotation Constraint:In front cavity (1) or rear chamber, micro- loudspeaker and environment hole shielding plate (4), 1 at least in 2 is machined with ring Type groove structure, such front cavity (1) just meet between rear chamber:Produced relatively around A1---A2 axles between making it possible to therewith Rotation, in some position ante-chamber environment holes (3) completely without blocking, and then ante-chamber environment hole (3) is blocked entirely for other positions.

Further:The rotationally isolated isolation control of front cavity refers to:Being blocked with environment hole for front cavity (1) is used The relative restraint rotation of piece (4), to change the exposed area of ante-chamber environment hole (3)；Ante-chamber environment hole exists with environment hole shielding plate Identical in quantity, quantity can be linked to be 1 entirety between 1---100 between each environment hole shielding plate, as prolong it is continuous not Disconnected mountain peak is the same.

Further:Batching pig filling type or the isolated isolation control of ante-chamber slide plate displacement refer to:It is isolated the plug of plug Enter in ante-chamber environment hole (3), ante-chamber environment hole (3) is either also blocked by the displacement of ante-chamber slide plate, to change ante-chamber environment hole (3) the exposed area to the external world.

The beneficial effects of the present invention are:For opening the structure of environment hole in rear chamber, structure is simpler, operatic tunes audio More preferably.

[brief description of the drawings]

Rotatably the adjustable insert earphone structure of degree of being environmentally isolated throws face schematic diagram to Fig. 1 front cavities.

Insert earphone structure that Fig. 2 front cavity blocking type degree of being environmentally isolated is adjustable throws face schematic diagram.

Label declaration：

1 front cavity

2 ante-chambers enter ear portions

3 ante-chamber environment holes

4 environment hole shielding plates

5 micro- loudspeakers

6 rear chambers

7 leads

8 batching pigs

9 annular recess

[embodiment]

Below in conjunction with accompanying drawing, with regard to preferred embodiment, the invention will be further described：

As shown in Figure 1:It is the position inserted when using in earhole that the ante-chamber of front cavity (1) construction, which enters ear portions (2),；Ante-chamber Under mutual rotation condition between body (1) and rear chamber (6), rotated around axis A1A2, (annular recess (9) shown in figure, For plastic parts, the characteristics of can utilizing elastic deformation, strength is pressed into groove；Rigid material then needs the assembling ability of multiple Realize rotation condition), mutually rotate；Ante-chamber environment hole (3) is distributed in the side of front cavity (1), and environment hole shielding plate (4) can be with It is the extension of rear chamber (6) or micro- loudspeaker (5) or additional structural member fixed thereto, environment hole shielding plate in this figure (4) be it is direct be fixedly connected with micro- loudspeaker (5), be bonded or weld or rivet or screw connection etc.；Environment hole shielding plate (4) inner surface with front cavity (1) is in close contact；Front cavity (1) and rear chamber (6) partly play the work of the front and rear sound chamber of audio amplifier With；Ante-chamber environment hole (3) changes the exposed area of ante-chamber environment hole (3) by the rotation of front cavity (1), and it is outside to play regulation Ambient sound is passed to the loudness of human ear by insert earphone, so as to change the loudness value that human ear hears outside environmental sounds；Currently Bigger to the isolation capacity of the sound of outside when the area that chamber environment hole is blocked is bigger, isolation is higher；Ante-chamber environment hole (3) and environment hole shielding plate (4) quantity it is identical, within the scope of 1---100.

(7) belong to prior art known to the public for the structure of the micro- loudspeakers of earphone wire (5), be not drawn.

As shown in Figure 2：Front cavity is rigidly connected with rear chamber；Environment hole shielding plate is no longer needed, is come using batching pig (8) Block ante-chamber environment hole, the cock body, which is connected, to be carried on housing, manually operated.

Claims (3)

1. a kind of preceding adjustable insert earphone of operatic tunes degree of being environmentally isolated, its structure cage structure include:Pleasant piston part, front cavity, after Cavity, ante-chamber environment hole, environment hole shielding plate or batching pig are also or ante-chamber slide plate, micro- loudspeaker, speaker leads, plug；Base This operation principle is：Plug gives electric signal transmission to micro- loudspeaker, and the sound of micro- loudspeaker passes through the pleasant fractional transmission of insert earphone To in the earhole of people, front cavity and back cavity body portion play a part of the front and rear sound chamber of audio amplifier；Change the sudden and violent of ante-chamber environment hole (3) Show up product, play the loudness that regulation outside environmental sounds are passed to human ear by insert earphone, hear external rings so as to change human ear The loudness value of border sound；It is bigger to the isolation capacity of the sound of outside when the area that ante-chamber environment hole is blocked is bigger, isolation Degree is higher；Its feature is that:Front cavity is rotationally isolated or batching pig plug is isolated also or ante-chamber slide plate displacement is isolated Carry out isolation control.

2. the front cavity described in a kind of preceding adjustable insert earphone of operatic tunes degree of being environmentally isolated as claimed in claim 1 is rotationally isolated Isolation control refers to：The rotation of the relative restraint with environment hole shielding plate (4) of front cavity (1) is used, to change ante-chamber The exposed area of environment hole (3)；Ante-chamber environment hole is quantitatively identical with environment hole shielding plate, quantity between 1---100, In front cavity (1) or rear chamber, micro- loudspeaker and environment hole shielding plate (4), 1 at least in 2 is machined with ring groove Structure.

3. the batching pig filling type or preceding described in a kind of preceding adjustable insert earphone of operatic tunes degree of being environmentally isolated as claimed in claim 1 The isolated isolation control of chamber slide plate displacement refers to：Filling in ante-chamber environment hole (3) for plug is isolated, also either by ante-chamber Ante-chamber environment hole (3) is blocked in the displacement of slide plate, to change the exposed area to the external world of ante-chamber environment hole (3).