CN105872880A

CN105872880A - Headset

Info

Publication number: CN105872880A
Application number: CN201610277833.1A
Authority: CN
Inventors: 铁广朋
Original assignee: Qingdao Goertek Co Ltd
Current assignee: Qingdao Goertek Co Ltd
Priority date: 2016-04-28
Filing date: 2016-04-28
Publication date: 2016-08-17
Anticipated expiration: 2036-04-28
Also published as: CN105872880B

Abstract

The invention provides a headset and relates to the field of headsets. The headset comprises at least one earlap provided with a partition board, wherein a loudspeaker component is installed on each partition board, each earlap is divided into a front chamber and a rear chamber by the corresponding loudspeaker component and the corresponding partition board, each partition board is at least provided with one acoustic short circuit passage set, and each acoustic short circuit passage set comprises a first passage communicated with the corresponding front chamber and the corresponding rear chamber, and a second passage communicated with the first passage and the outside. By the adoption of the headset, simultaneous adjustment of airflow among the front chambers, the rear chambers and the outside is achieved, and the low-frequency acoustical effect of the headset can be improved more flexibly.

Description

A kind of headphone

Technical field

The present invention relates to earphone field, particularly relate to a kind of headphone.

Background technology

In the prior art, as it is shown in figure 1, closed headphone typically has two auricular conchas, Mei Geer There is in shell connection ante-chamber and the acoustic short circuit hole 10 of back cavity, and open the connection back cavity on the back cover of auricular concha and outer The sound penetrating hole 20 on boundary.Change acoustic short circuit hole 10, the perforate size of sound penetrating hole 20 and mount thickness not thereon Same adjustable sound paper, so that air mobility status changes in earphone case, thus regulates earphone frequency response, Change the low frequency acoustical quality of earphone.

This structure can only regulate earphone by the air-flow between regulation ante-chamber and back cavity, back cavity and the external world Low frequency acoustical quality, therefore before earphone dispatches from the factory, the means that the tonequality of headphone is regulated by technical staff have Limit；And after earphone dispatches from the factory, the tonequality of earphone cannot be carried out certainly by user according to the preference of oneself and demand By spending higher regulation.

Summary of the invention

It is an object of the present invention to offer one can be to ante-chamber, back cavity, extraneous triangular air stream Move and regulate simultaneously, thus the headphone of tuning can be carried out before dispatching from the factory for greater flexibility.

The present invention one further objective is that will be after headphone dispatches from the factory so that user still can basis The preference of oneself and demand carry out tonequality regulation.

In order to realize said one or multiple purpose, the invention provides a kind of headphone, including a peace Equipped with the auricular concha of dividing plate, described dividing plate is provided with loudspeaker assembly, described loudspeaker assembly and described dividing plate Jointly the inner space of the described auricular concha at place being separated into ante-chamber and back cavity, described dividing plate at least has one Acoustic short circuit passage group, each described acoustic short circuit passage group includes: first passage, connects described ante-chamber with described Back cavity；Second channel, connects described first passage with extraneous.

Alternatively, described acoustic short circuit passage group also includes damping filling member, is filled in described first passage and institute State second channel.

Alternatively, described damping filling member includes that the first damping filling member, described first damping filling member can divide Liftoff it is filled in described second channel.

Alternatively, the middle section of described first passage divides described first passage equally is leading portion passage and back segment passage； Described damping filling member also includes: the second damping filling member, is filled in described leading portion passage；3rd damping is filled out Fill part, be filled in described back segment passage.

Alternatively, described first damping filling member, the second damping filling member, the damping of the 3rd damping filling member Coefficient is different.

Alternatively, described first passage is cylindrical hole or square hole, and described second channel is cylindrical hole or square hole.

Alternatively, the axis of described first passage is vertical with the axis of described second channel, described first passage Axis parallel with the axis of described dividing plate；Described dividing plate is divided equally by the middle section of described first passage, described Second channel is divided equally by the middle section of described first passage.

Alternatively, described loudspeaker assembly includes speaker and support；Described speaker is fixed on described support On, described support is fixed on described dividing plate.

Alternatively, also include that ear muff, described ear muff are fixed on described auricular concha, described ear muff, described auricular concha, Described dividing plate and described loudspeaker assembly define described ante-chamber jointly.

The present invention at least has the following technical effect that

1, first passage connection ante-chamber and back cavity, second channel connection first passage and the external world, ante-chamber with after The connectivity structure in chamber, back cavity and extraneous connectivity structure are in nearer position, this ante-chamber, back cavity, outer The three-port structure on boundary achieves while flowing triangular air and regulates, thus regulates earphone frequency response, changes Become the low frequency acoustical quality of earphone；

Therefore, it is merely capable of during technique scheme overcomes prior art ante-chamber and back cavity, back cavity with outer The limitation that the air flowing on boundary is adjusted.On the one hand so that the low frequency energy in ante-chamber can be by the Leaking out with second channel of one passage, reduces the muddy sense of low frequency；On the one hand, by front and back's operatic tunes Between, front and back the operatic tunes and the external world regulate low frequency simultaneously, obtain preferable bass effect, technology people before dispatching from the factory Member carry out tonequality regulation time the most convenient, degree of freedom is higher；

Additionally, technique scheme also creates unexpected technique effect:

A, the air-flow of ante-chamber is quickly guided the external world by first passage, second channel, reduce headphone The deformation that the diaphragm of speaker produces because of pressure differential when just putting on, improves the use longevity of the diaphragm of speaker Life；

B, the sound penetrating hole offered on the back cover of auricular concha relative to prior art, the length of second channel is long-range In the thickness of this sound penetrating hole, according to the formula of resonant frequency, when obtaining the lowest resonant frequency, this The back cavity of bright earphone can be less with volume, and therefore the auricular concha of the earphone of the present invention can be relative to prior art It is made thinner.

2, being provided with damping filling member in first passage and second channel, so before dispatching from the factory, technical staff can To change the damping filling member of different damping coefficient so that the adsorption effect of low frequency energy is sent out by damping filling member Changing, have adjusted tonequality further；And damping filling member is set reduces the loss of low frequency so that first Passage and second channel it is unnecessary to avoid the loss of low frequency and make the radial width of passage too small, the most not The frequency response curve that low frequency peak valley can be caused sharply to cause is unsmooth.

3, the first damping filling member is filled in the second channel being in communication with the outside separably, therefore goes out at earphone After factory, user can change the first damping filling member of different damping coefficient according to the preference of oneself and demand, So that the headphone of the present invention has different acoustical qualities.

4, it is filled with the first damping filling member in second channel, is separately filled with the second damping in first passage and fills out Filling part and the 3rd damping filling member, so before earphone dispatches from the factory, technical staff can be by changing damping respectively Coefficient different first damping filling member, second damping filling member, the 3rd damping filling member so that wear ear Facility have different tonequality, relative to prior art only change acoustic short circuit hole, the size of sound penetrating hole or The different adjustable sound paper of attachment, the regulation degree of freedom of the solution of the present invention is higher and the most convenient, technical staff's energy Enough carry out more, effect more preferable tonequality debugging.

According to below in conjunction with the accompanying drawing detailed description to the specific embodiment of the invention, those skilled in the art will More understand the above-mentioned of the present invention and other purposes, advantage and feature.

Accompanying drawing explanation

Some describing the present invention the most by way of example, and not by way of limitation in detail are specifically real Execute example.Reference identical in accompanying drawing denotes same or similar parts or part.People in the art Member is it should be understood that what these accompanying drawings were not necessarily drawn to scale.In accompanying drawing:

Fig. 1 is the structural representation of the headphone of prior art；

Fig. 2 is the structural representation of headphone according to an embodiment of the invention；

Fig. 3 is the acoustic short circuit passage group of headphone shown in Fig. 2 distribution schematic diagram on dividing plate；

Fig. 4 is the structural representation of the acoustic short circuit passage group of headphone shown in Fig. 2；

Fig. 5 is the structural representation of the acoustic short circuit passage group of headphone in accordance with another embodiment of the present invention Figure.

Detailed description of the invention

Fig. 2 is the structural representation of headphone according to an embodiment of the invention.In the reality shown in Fig. 2 Execute in example, it is shown that a kind of headphone, headphone include two auricular conchas being provided with dividing plate 30 40 ( Other embodiments of the present invention can also be one), dividing plate 30 is provided with loudspeaker assembly 50, raises The inner space of the auricular concha 40 at place is separated into ante-chamber 71 and back cavity by sound device assembly 50 and dividing plate 30 jointly 72.Loudspeaker assembly 50 includes speaker 52 and support 51, and speaker 52 is fixed on support 51.Every Plate 30 can be the annular slab that through hole is dug at center, and the inner side of annular slab is fixed with the support 51 of speaker 52, Speaker 52 has diaphragm 522, and auricular concha 40 is fixed in the outside of annular slab.In the embodiment shown in Figure 2, The thickness of dividing plate 30 can be more than three times of the thickness of the dividing plate 30 of prior art, but not to dividing plate 30 Thickness constitute concrete restriction, in other embodiments of the invention, dividing plate 30 can also have other thickness.

In an embodiment of present aspect, headphone can also include a beam, pacifies at the both ends of head beam Equipped with two auricular conchas 40.Headphone can also include that ear muff 60, ear muff 60 are fixed on auricular concha 40, ear muff 60, auricular concha 40, dividing plate 30 and loudspeaker assembly 50 define ante-chamber 71 jointly.The back cover of auricular concha 40, Dividing plate 30 and loudspeaker assembly 50 define back cavity 72 jointly.

As shown in Figure 2 and Figure 3, dividing plate 30 at least having an acoustic short circuit passage group 80 (is 4 in Fig. 3 Individual, in other embodiments of the present invention, can be other quantity).Each acoustic short circuit passage group 80 includes: First passage 81, second channel 82.First passage 81 connects ante-chamber 71 and back cavity 72, second channel 82 Connection first passage 81 and external world so that one end that second channel 82 is not connected with first passage 81 direct and Air contact outside headphone.This structure eliminates traditional earphone sound penetrating hole being opened on earphone back casing 2, add the function of ante-chamber 71 and extraneous intercommunication regulation so that while ante-chamber 71, back cavity 72 intercommunication Communicate with the external world, flowed by flexible air, low frequency can be regulated for greater flexibility.

Additionally, back cavity 72 forms resonance with extraneous opening, thus strengthen low-frequency effect.Resonant frequency F0=k/ (V*L) * 1/2, k are constant coefficient, and V is rear operatic tunes volume, and L is opening part correspondence phonoreception, and opening is more Long L is the biggest, and in the prior art, L is the thickness of the sound penetrating hole on back cover, in an embodiment of the present invention, L is the length of second channel 82, when therefore the volume V of the back cavity 72 of present aspect embodiment is less, still may be used Obtain relatively low resonant frequency, say, that the auricular concha 40 of the headphone of the present invention can be made thinner.

In the embodiment shown in Fig. 2, Fig. 3, the axis of first passage 81 and the axis of second channel 82 Vertically, the axis of first passage 81 is parallel with the axis of dividing plate 30；Dividing plate 30 is by first passage 81 Cross section (midpoint crossing geometry height is parallel to the cross section of bottom surface) is divided equally, and second channel 82 is by first passage 81 middle sections are divided equally.Middle section herein is a mathematical concept, is a virtual face, is only used for First passage 81 and the relative position relation of second channel 82, the entity structure being not newly added are described.

In one embodiment of the invention, first passage 81 can be cylindrical hole or square hole, second channel 82 can be cylindrical hole or square hole.In other embodiments of the invention, first passage 81, second channel 82 can also be other shapes, such as the two can in dividing plate 30 bending extension, the most also can reach Effect to the present invention.

Fig. 4 is the structural representation of the acoustic short circuit passage group of headphone shown in Fig. 2.In the reality shown in Fig. 4 Executing in example, acoustic short circuit passage group 80 can include damping filling member, and damping filling member is filled in first passage 81 and second channel 82 in, the damping filling member in first passage 81 and second channel 82 can be one , it is also possible to it is separated from each other.Damping filling member can be the elastomeric material with sound absorption qualities, such as Sponge.Fig. 5 is that the structure of the acoustic short circuit passage group 80 of headphone in accordance with another embodiment of the present invention is shown It is intended to.In the embodiment shown in fig. 5, the middle section of first passage 81 divides first passage 81 equally for leading portion Passage and back segment passage.Damping filling member include the first damping filling member 821, second damp filling member 811, 3rd damping filling member 812.First damping filling member 821 is filled in second channel 82, and the second damping is filled Part 811 is filled in leading portion passage, and the 3rd damping filling member 812 is filled in back segment passage.By changing first Damping filling member 821, second damps filling member the 811, the 3rd damping filling member 812 can control air flexibly Flowing and adsorption to low frequency energy.

First damping filling member 821 is separable with second channel 82, so also allows for user after dispatching from the factory and changes. Second damping filling member 811 is fixed on leading portion passage, and the 3rd damping filling member 812 is fixed on back segment passage, Such as, the two can glued joint in leading portion passage, back segment passage by glue respectively, and the two is permissible before dispatching from the factory Change.

First damping filling member 821, second damps the damping system of filling member the 811, the 3rd damping filling member 812 Number can be different, in other embodiments of the invention, it is also possible to only both identical or three's all phases With, this is according to the requirement decision to tonequality.

Below in conjunction with Fig. 5 simple declaration dispatch from the factory before, dispatch from the factory after by change different damping coefficient damping fill Part carries out the process of tonequality regulation.Assume that the second damping filling member 811, first damps filling member the 821, the 3rd The damped coefficient of damping filling member 812 is respectively α 1, α 2, α 3.First damping filling member the 821, the 3rd Damping filling member 812 connects back cavity 72 with extraneous, control low frequency amount number, before dispatching from the factory, lack low frequency Time the damped coefficient α 2 of the two, α 3 are reduced, increase by second damping filling member 811 damped coefficient α 1.First damping filling member 821, second damps filling member 811 and can discharge front operatic tunes low frequency energy, prevents Low-frequency sound is the most muddy, before dispatching from the factory, low frequency more muddy more time reduce the damped coefficient α 2 of the two, α 1.Cause This, in the tuning process before dispatching from the factory, low frequency more more muddy time, α 1 ＜ α 3 ＜ α 2；When low frequency is less, α 3 ＜ α 2 ＜ α 1.The structure of prior art is only capable of regulation connection ante-chamber 71 and the acoustic short circuit hole 1 of back cavity 72 The thickness of place's adjustable sound paper, therefore, the first damping filling member 821, second damps filling member the 811, the 3rd damping The selection of the different damping material of filling member 812 3 part regulates (in other words, sound than the low frequency of prior art Short circuit regulation) abundanter, it is easier to reach some careful requirements.After dispatching from the factory, owing to leading to second Position that road 82 is in communication with the outside is arranged and the first damping filling member 821 in second channel 82 is separable, Therefore user can select to change the damping material in the first damping filling member 821, hobby according to oneself hobby The user that low frequency is many can select low resistance material, the user that hobby low frequency is few can select high damping material.

In other embodiments of the invention, it is also possible to be only, in an auricular concha 40, there is said structure, The structure of prior art, its technique effect remaining to realize the present invention is remained in another auricular concha 40.

So far, although those skilled in the art will appreciate that and the most detailed illustrate and describing the present invention's Multiple exemplary embodiments, but, without departing from the spirit and scope of the present invention, still can be according to this Disclosure of invention directly determines or derives other variations or modifications of many meeting the principle of the invention.Cause This, the scope of the present invention is it is understood that and regard as covering other variations or modifications all these.

Claims

1. a headphone, is provided with the auricular concha of dividing plate including at least one, described dividing plate is provided with and raises Sound device assembly, the inner space of the described auricular concha at place is separated by described loudspeaker assembly and described dividing plate jointly Become ante-chamber and back cavity, it is characterised in that

Described dividing plate at least has an acoustic short circuit passage group, and each described acoustic short circuit passage group includes:

First passage, connects described ante-chamber and described back cavity；

Second channel, connects described first passage with extraneous.

Headphone the most according to claim 1, it is characterised in that described acoustic short circuit passage group is also wrapped Include:

Damping filling member, is filled in described first passage and described second channel.

Headphone the most according to claim 2, it is characterised in that

Described damping filling member includes that the first damping filling member, described first damping filling member are filled separably In described second channel.

Headphone the most according to claim 3, it is characterised in that

It is leading portion passage and back segment passage that the middle section of described first passage divides described first passage equally；

Described damping filling member also includes:

Second damping filling member, is filled in described leading portion passage；

3rd damping filling member, is filled in described back segment passage.

Headphone the most according to claim 4, it is characterised in that

Described first damping filling member, the second damping filling member, the 3rd damping filling member damped coefficient mutually the most not Identical.

6. according to the headphone described in any one of claim 1-5, it is characterised in that

Described first passage is cylindrical hole or square hole, and described second channel is cylindrical hole or square hole.

Headphone the most according to claim 6, it is characterised in that

The axis of described first passage is vertical with the axis of described second channel, the axis of described first passage with The axis of described dividing plate is parallel；

Described dividing plate is divided equally by the middle section of described first passage, and described second channel is by described first passage Middle section is divided equally.

Headphone the most according to claim 7, it is characterised in that

Described loudspeaker assembly includes speaker and support；

Described speaker is fixed on described support, and described support is fixed on described dividing plate.

Headphone the most according to claim 8, it is characterised in that

Also include that ear muff, described ear muff are fixed on described auricular concha, described ear muff, described auricular concha, described dividing plate And described loudspeaker assembly defines described ante-chamber jointly.