CN109936791A - Earphone - Google Patents
Earphone Download PDFInfo
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- CN109936791A CN109936791A CN201910116760.1A CN201910116760A CN109936791A CN 109936791 A CN109936791 A CN 109936791A CN 201910116760 A CN201910116760 A CN 201910116760A CN 109936791 A CN109936791 A CN 109936791A
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- Prior art keywords
- cavity
- earphone
- sound regulating
- loudspeaker unit
- regulating hole
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Abstract
The present invention provides a kind of earphones, it includes earphone case, there is loudspeaker unit and the earphone back cavity positioned at loudspeaker unit rear in earphone case, earphone back cavity includes at least one cavity, cavity constructions are tubulose, at least one cavity has at least three spaced sound regulating holes of length direction along cavity.The cavity of the earphone back cavity of earphone according to the present invention has at least three spaced sound regulating holes of length direction along cavity, so that cavity is divided into multistage, forms three or three or more helmholtz resonance structures.By cavity acoustic capacitance, the adjusting of acoustic aperture acoustic mass/acoustic resistance, earphone frequency response curve can be optimized for multiple frequency ranges, increase the diversity of design, different headset styles is debugged out in standard cavity, improves user experience.
Description
Technical field
The present invention relates to field of electronic devices, more particularly to a kind of earphone.
Background technique
Traditional earphone back cavity is usually only with one to two sound travels, the one of connection for example, in the form of in parallel or series
A cavity and a pipe component.This single or double sound travel design can be only formed one or two helmholtz resonance structure
Formant can only carry out simple debugging optimization to one to two frequency ranges of earphone frequency response curve.
For this reason, it is necessary to a kind of earphone be proposed, at least to be partially solved the problems of the prior art.
Summary of the invention
A series of concept of reduced forms is introduced in Summary, this will in the detailed description section into
One step is described in detail.Summary of the invention is not meant to attempt to limit technical solution claimed
Key feature and essential features do not mean that the protection scope for attempting to determine technical solution claimed more.
The present invention provides a kind of earphones comprising earphone case, the earphone case is interior to have loudspeaker unit and position
Earphone back cavity in the loudspeaker unit rear, the earphone back cavity include at least one cavity, and the cavity constructions are pipe
Shape, at least one described cavity have at least three spaced sound regulating holes of length direction along the cavity.
The cavity of the earphone back cavity of earphone according to the present invention has at least three to be arranged along the length direction interval of cavity
Sound regulating hole form three or three or more helmholtz resonance structures so that cavity is divided into multistage.Pass through cavity sound
Hold, the adjusting of acoustic aperture acoustic mass/acoustic resistance, earphone frequency response curve can be optimized for multiple frequency ranges, increase design
Diversity debugs out different headset styles in standard cavity, improves user experience.
Optionally, the front end of at least one cavity has the front end aperture being connected to the loudspeaker unit.
Optionally, the rear end of at least one cavity has the rear leak holes being connected to outside air.
Optionally, the cavity constructions are to extend along straight line or curve.
Optionally, the earphone back cavity includes at least two cavitys being arranged in parallel.
Optionally, the earphone back cavity further includes partition wall, and at least two cavitys being arranged in parallel pass through described point
Wall is cut to separate.
Optionally, the earphone back cavity further includes intercommunicating pore, and at least two cavitys being arranged in parallel pass through the company
Through-hole connection.
Optionally, at least two cavitys being arranged in parallel have different length.
Optionally, the earphone case includes earphone front housing and earphone rear shell, and the loudspeaker unit is arranged in the ear
At machine front housing, the sound regulating hole is arranged at the earphone rear shell, and the earphone front housing and the earphone rear shell form the ear
Casing body.
Optionally, damping cloth is provided at the sound regulating hole.
Detailed description of the invention
Following drawings of the invention is incorporated herein as part of the present invention for the purpose of understanding the present invention.Shown in the drawings of this hair
Bright embodiment and its description, principle used to explain the present invention.
In the accompanying drawings:
Fig. 1 is the partial structural diagram of the earphone of the first preferred embodiment according to the present invention;
Fig. 2 is the partial structural diagram of the earphone of the second preferred embodiment according to the present invention;
Fig. 3 is the partial structural diagram of the earphone of third preferred embodiment according to the present invention;
Fig. 4 is the partial structural diagram of the earphone of the 4th preferred embodiment according to the present invention;And
Fig. 5 is the partial structural diagram of the earphone of the 5th preferred embodiment according to the present invention.
Description of symbols
10: loudspeaker unit
110: cavity
111: front end aperture
112: rear leak holes
113a: the first sound regulating hole
113b: the second sound regulating hole
113n: the n-th sound regulating hole
114a: the first helmholtz resonance structure
114b: the second helmholtz resonance structure
114n: the n-th helmholtz resonance structure
210/310/410/510: the first cavity
211/411/511: the first front end aperture
Leak holes after 212: the first
First sound regulating hole of the 213a: the first cavity
Second sound regulating hole of the 213b: the first cavity
The m sound regulating hole of 213m: the first cavity
First helmholtz resonance structure of the 214a: the first cavity
Second helmholtz resonance structure of the 214b: the first cavity
The m helmholtz resonance structure of 214m: the first cavity
220/320/420/520: the second cavity
221: the second front end apertures
Leak holes after 222/322/422/522: the second
First sound regulating hole of the 223a: the second cavity
Second sound regulating hole of the 223b: the second cavity
N-th sound regulating hole of the 223n: the second cavity
First helmholtz resonance structure of the 224a: the second cavity
Second helmholtz resonance structure of the 224b: the second cavity
N-th helmholtz resonance structure of the 224n: the second cavity
230/330: partition wall
331/431/531: intercommunicating pore
Specific embodiment
In order to thoroughly understand the present invention, detailed structure will be proposed in following description, to illustrate the present invention.It is aobvious
So, execution of the invention is not limited to the specific details that the those skilled in the art are familiar with.Preferable reality of the invention
The mode of applying is described in detail as follows, however other than these detailed descriptions, the present invention can also have other embodiments, should not
It is construed as limited to the embodiments set forth herein.
It should be understood that the purpose of term as used herein is only that description specific embodiment and not as this hair
Bright limitation, " one " of singular, "one" and " described/should " be also intended to include plural form, unless context understands finger
Other mode out.When the term " comprising " and/or " including " is used in this specification, indicate that there are the features, whole
Body, step, operation, element and/or component, but do not preclude the presence or addition of one or more other features, entirety, step, behaviour
Work, element, component and/or their combination.Term " on " used in the present invention, "lower", "front", "rear", "left", "right"
And similar statement is for illustrative purposes only, not limits.
The cited such as ordinal number of " first " and " second " is only to identify in the present invention, without any other
Meaning, such as specific sequence etc..Moreover, for example, term " first component " itself does not imply that the presence of " second component ", art
Language " second component " does not imply that the presence of " first component " in itself.
Hereinafter, a specific embodiment of the invention is described in more detail with reference to the accompanying drawings, those figures show
Representative embodiment of the invention is not to limit the present invention.
First embodiment
Now referring to Fig. 1, that schematically shows the parts of the earphone of first preferred embodiment according to the present invention
Structure.
In the shown embodiment, earphone includes loudspeaker unit 10 and after the earphone at 10 rear of loudspeaker unit
Chamber.Earphone further includes earphone case (not shown), and earphone case has inner space.
Those skilled in the art are easy to know, loudspeaker unit 10 and institute in the inner space of earphone case
It states earphone case and is formed with earphone ante-chamber and earphone back cavity.Earphone ante-chamber and earphone back cavity are boundary with loudspeaker unit 10.
Loudspeaker unit 10 can be conventional loudspeaker unit 10.The loudspeaker unit 10 can be moving-coil type, electronic
Formula, moving-iron type or other kinds of loudspeaker unit 10.The inside that connection earphone case is additionally provided on earphone case is empty
Between sound channel (not shown).The sound that loudspeaker unit 10 issues can be transferred to the ear of user via the sound channel
Piece.
The earphone back cavity of earphone according to the present embodiment includes cavity 110, and the cavity 110 construction can be tubulose.It should
The cross section of tubular structure can be round, polygon, or be the shape with straightway and arc segment.
In the shown embodiment, earphone back cavity includes only one cavity 110.Certainly, in other implementations, ear
The quantity of cavity 110 included by machine back cavity can be two, three, four, or more.
The cavity 110 of earphone back cavity has at least three spaced sound regulating holes of length direction along cavity 110.Each
Sound regulating hole forms a helmholtz resonance structure with a part of cavity 110 respectively.That is, each sound regulating hole and cavity 110
One section is formed as a helmholtz resonance structure.
Specifically, along close to loudspeaker unit 10, to the direction far from loudspeaker unit 10, cavity 110 has the first tuning
Hole 113a, second the n-th sound regulating hole of sound regulating hole 113b ... 113n.
N helmholtz resonance structure is illustrated with dotted line in Fig. 1.For example, being raised along close to loudspeaker unit 10 to separate
The direction of sound device unit 10, cavity 110 are divided into the first helmholtz resonance structure 114a, the second helmholtz resonance knot
Structure 114b ... the n-th helmholtz resonance structure 114n.Wherein n is the quantity of sound regulating hole.
In other words, the quantity of sound regulating hole determines the quantity of helmholtz resonance structure.
Since cavity 110 has at least three sound regulating holes, the quantity n of sound regulating hole is greater than or equal to 3, and Helmholtz is total
The quantity for structure of shaking is also greater than or equal to 3.
The cavity of the earphone back cavity of earphone according to the present embodiment is at least three along the length direction interval of cavity
The sound regulating hole of setting forms three or three or more helmholtz resonance structures so that cavity is divided into multistage.Transit chamber
Body acoustic capacitance, the adjusting of acoustic aperture acoustic mass/acoustic resistance can optimize earphone frequency response curve for multiple frequency ranges, increase and set
The diversity of meter debugs out different headset styles in standard cavity, improves user experience.
In addition, it should be noted that, although cavity 110 is divided into n helmholtz resonance structure with dotted line in Fig. 1,
But in fact, having no apparent segmentation boundary between adjacent helmholtz resonance structure.
Cavity 110 along straight line or curve it is so structured that extend.Thus, it is possible to which the specific of cavity 110 is set as needed
Shape, to adapt to the inner space of earphone case.
With continued reference to Fig. 1, the front end of cavity 110 has the front end aperture 111 being connected to loudspeaker unit 10.It opens the front end
The radial cross-sectional shape in hole 111 can be round, polygon or other shapes.
In addition, the rear end of cavity 110 has the rear leak holes 112 being connected to outside air.Leak holes 112 can balance afterwards
The air pressure of earphone back cavity and exterior space.The radial cross-sectional shape of leak holes 112 can be round, polygon or other shapes afterwards
Shape.
In addition, cavity 110 is it is so structured that the component or integrated member being integrally formed.Certainly, cavity 110 can also construct
For seperated component.
For example, in a not shown embodiment, earphone case includes earphone front housing and can snap into earphone front housing
Earphone rear shell, loudspeaker unit 10 are arranged at earphone front housing.A part of cavity 110 is additionally provided on earphone front housing, such as
Groove.And snapped into the state of earphone front housing in earphone rear shell, earphone rear shell covers the groove, to form above-mentioned cavity
110。
By this method, sound regulating hole can be set in earphone rear shell.Sound regulating hole can be directly connected to outside air.
Sound regulating hole can be straight hole, taper hole or stepped hole.
In addition, above-mentioned rear leak holes 112 also can be set in earphone rear shell.
The cavity 110 can be arranged around loudspeaker unit 10, to have curved shape.
Acoustic resistance and acoustic mass are adjusted in order to obtain, and damping member (not shown) can be set at sound regulating hole.Common resistance
Buddhist nun's component can be damping cloth, and damping cloth can be arranged by way of being such as bonded to sound regulating hole.
Likewise it is possible to which damping member (not shown) is arranged at rear leak holes 112.Common damping member can be resistance
Ni Bu, damping cloth can be arranged to rear leak holes 112 by way of being such as bonded.
Second embodiment
Now referring to Fig. 2, that schematically shows the parts of the earphone of the second preferred embodiment according to the present invention
Structure.Other than rear cavity configuration, according to the earphone of the second preferred embodiment have with according to the first preferred embodiment
The roughly the same construction of earphone, wherein the structure of identity function is endowed similar appended drawing reference.Here, it is succinct for narration, only
It describes in detail to structure relevant to distinguishing characteristics, something in common repeats no more.
In the shown embodiment, earphone includes loudspeaker unit 10 and after the earphone at 10 rear of loudspeaker unit
Chamber.Earphone further includes earphone case (not shown), and earphone case has inner space.
In the shown embodiment, earphone back cavity includes two cavitys, that is, the first cavity 210 and the second cavity 220.When
So, in other implementations, the quantity of cavity included by earphone back cavity can be one, three, four or more.
Specifically, the first cavity 210 and the second cavity 220 are arranged side by side.In other words, the first cavity 210 and the second cavity
220 is in parallel.Herein, it should be noted that two cavitys that the meaning of term " parallel connection " refers to are connected to loudspeaker unit 10,
And it is connected to outside air.Earphone back cavity may include at least two cavitys being arranged in parallel.
First cavity 210 has the spaced sound regulating hole of length direction along the first cavity 210.Each sound regulating hole difference
A helmholtz resonance structure is formed with a part of the first cavity 210.That is, the one of each sound regulating hole and the first cavity 210
Section is formed as a helmholtz resonance structure.
Further, along close to loudspeaker unit 10, to the direction far from loudspeaker unit 10, the first cavity 210 has the
The m tuning of first sound regulating hole 213a of one cavity 210, the second sound regulating hole 213b ... of the first cavity 210 and the first cavity 210
Hole 213m.
M helmholtz resonance structure of the first cavity 210 is illustrated in Fig. 2 with dotted line.For example, along close to loudspeaker list
For member 10 to the direction far from loudspeaker unit 10, the first Helmholtz that the first cavity 210 is divided into the first cavity 210 is total
Vibration structure 214a, the second helmholtz resonance structure 214b ... of the first cavity 210 and the m Helmholtz of the first cavity 210
Resonant structure 214m.Wherein m is the quantity of the sound regulating hole of the first cavity 210.
The quantity m of the sound regulating hole of first cavity 210 is greater than or equal to 3, the helmholtz resonance structure of the first cavity 210
Quantity is also greater than or equal to 3.
Second cavity 220 has the spaced sound regulating hole of length direction along the second cavity 220.Each sound regulating hole difference
A helmholtz resonance structure is formed with a part of the second cavity 220.That is, the one of each sound regulating hole and the second cavity 220
Section is formed as a helmholtz resonance structure.
Further, along close to loudspeaker unit 10, to the direction far from loudspeaker unit 10, the second cavity 220 has the
The n-th tuning of first sound regulating hole 223a of two cavitys 220, the second sound regulating hole 223b ... of the second cavity 220 and the second cavity 220
Hole 223n.
N helmholtz resonance structure of the second cavity 220 is illustrated in Fig. 2 with dotted line.For example, along close to loudspeaker list
For member 10 to the direction far from loudspeaker unit 10, the first Helmholtz that the second cavity 220 is divided into the second cavity 220 is total
Vibration structure 224a, the second helmholtz resonance structure 224b ... of the second cavity 220 and the n-th Helmholtz of the second cavity 220
Resonant structure 224n.Wherein n is the quantity of the sound regulating hole of the second cavity 220.
The quantity n of the sound regulating hole of second cavity 220 is greater than or equal to 3, the helmholtz resonance structure of the second cavity 220
Quantity is also greater than or equal to 3.
The earphone back cavity of earphone according to the present embodiment has at least two cavitys, and each cavity all has at least three
Along the spaced sound regulating hole of the length direction of cavity, so that cavity is divided into multistage, three or three or more the last of the twelve Earthly Branches is formed
Mu Huozi resonant structure.It, can be for multiple frequency ranges to earphone frequency response by cavity acoustic capacitance, the adjusting of acoustic aperture acoustic mass/acoustic resistance
Curve optimizes, and increases the diversity of design, and different headset styles is debugged out in standard cavity, improves user's body
It tests.
The quantity m of the sound regulating hole of first cavity 210 can be equal to the quantity n of the sound regulating hole of the second cavity 220.First cavity
The quantity m of 210 sound regulating hole can also be not equal to the quantity n of the sound regulating hole of the second cavity 220.
In a not shown embodiment, the quantity m of the sound regulating hole of the first cavity 210 can be less than 3.In unshowned reality
It applies in mode, the quantity n of the sound regulating hole of the second cavity 220 can be less than 3.That is, the tune of at least one of at least two cavitys
The quantity of sound hole is greater than or equal to 3.
With continued reference to Fig. 2, the front end of the first cavity 210 has the first front end aperture 211 being connected to loudspeaker unit 10.
The radial cross-sectional shape of the first front end aperture 211 can be round, polygon or other shapes.In addition, the first cavity 210
Rear end has leak holes 212 after first be connected to outside air.Leak holes 212 can balance earphone back cavity and outside after first
The air pressure in space.The radial cross-sectional shape of the leak holes 212 after first can be round, polygon or other shapes.
The front end of second cavity 220 has the second front end aperture 221 being connected to loudspeaker unit 10.It opens second front end
The radial cross-sectional shape in hole 221 can be round, polygon or other shapes.In addition, the rear end of the second cavity 220 have with it is outer
Leak holes 222 after the second of portion's air communication.Leak holes 222 can balance the air pressure of earphone back cavity and exterior space after second.
The radial cross-sectional shape of the leak holes 222 after second can be round, polygon or other shapes.
In addition, the first cavity 210 is it is so structured that the component or integrated member being integrally formed.Certainly, the first cavity 210
It is so structured that seperated component.And the second cavity 220 is it is so structured that the component or integrated member being integrally formed.Certainly,
Two cavitys 220 are also it is so structured that seperated component.
For example, in a not shown embodiment, earphone case includes earphone front housing and can snap into earphone front housing
Earphone rear shell, loudspeaker unit 10 are arranged at earphone front housing.It is also set up on earphone front housing there are two groove, two grooves are distinguished
Form a part of the first cavity 210 and a part of the second cavity 220.And the shape in earphone front housing is snapped into earphone rear shell
In state, earphone rear shell covers two grooves, to be respectively formed the first cavity 210 and the second cavity 220.
Two grooves can be spaced apart.Two grooves also can be structured as being split to form by a partition wall 230.That is,
First cavity 210 and the second cavity 220 can be constructed at least partly and be integrated.
By this method, the sound regulating hole of the sound regulating hole of the first cavity 210 and the second cavity 220 can be set in earphone rear shell
On.
The sound regulating hole of the sound regulating hole of first cavity 210 and the second cavity 220 can be straight hole, taper hole or stepped hole.
In addition, leak holes 212 also can be set in earphone rear shell after leak holes 212 and second after first.
First cavity 210 and the second cavity 220 can be arranged around loudspeaker unit 10, to have curved shape.
Third embodiment
Now referring to Fig. 3, that schematically shows the parts of the earphone of third preferred embodiment according to the present invention
Structure.Other than rear cavity configuration, according to the earphone of third preferred embodiment have with according to the second preferred embodiment
The roughly the same construction of earphone, wherein the structure of identity function is endowed similar appended drawing reference.Here, it is succinct for narration, only
It describes in detail to structure relevant to distinguishing characteristics, something in common repeats no more.
With continued reference to Fig. 3, unlike second embodiment, the rear end of the first cavity 310 does not have and outside air
The rear leak holes of connection.
In the shown embodiment, intercommunicating pore 331, the first cavity are provided between the first cavity 310 and the second cavity 320
Air in 310 flows into the second cavity 320 via the intercommunicating pore 331, and empty eventually by leak holes 322 after second and outside
Gas connection.
In other words, earphone back cavity may include at least two cavitys, and one or more of at least two cavity can have
There are the rear leak holes being connected to outside air.
In addition, the first cavity 310 is it is so structured that the component or integrated member being integrally formed.Certainly, the first cavity 310
It is so structured that seperated component.And the second cavity 320 is it is so structured that the component or integrated member being integrally formed.Certainly,
Two cavitys 320 are also it is so structured that seperated component.
For example, in a not shown embodiment, earphone case includes earphone front housing and can snap into earphone front housing
Earphone rear shell, loudspeaker unit 10 are arranged at earphone front housing.It is also set up on earphone front housing there are two groove, two grooves are distinguished
Form a part of the first cavity 310 and a part of the second cavity 320.And the shape in earphone front housing is snapped into earphone rear shell
In state, earphone rear shell covers two grooves, to be respectively formed the first cavity 310 and the second cavity 320.
Two grooves can be spaced apart.Two grooves also can be structured as being split to form by a partition wall 330.That is,
First cavity 310 and the second cavity 320 can be constructed at least partly and be integrated.Intercommunicating pore 331 can be set in the partition wall
On 330.
By this method, the sound regulating hole of the sound regulating hole of the first cavity 310 and the second cavity 320 can be set in earphone rear shell
On.
In addition, leak holes 322 also can be set in earphone rear shell after second.
4th embodiment
Now referring to Fig. 4, that schematically shows the parts of the earphone of the 4th preferred embodiment according to the present invention
Structure.Other than rear cavity configuration, according to the earphone of the 4th preferred embodiment have with according to third preferred embodiment
The roughly the same construction of earphone, wherein the structure of identity function is endowed similar appended drawing reference.Here, it is succinct for narration, only
It describes in detail to structure relevant to distinguishing characteristics, something in common repeats no more.
Unlike third embodiment, the front end of the second cavity 420 with loudspeaker unit 10 without before being connected to
Hold aperture.In addition, the rear end of the second cavity 420 has leak holes 422 after second be connected to outside air.Leak holes after second
422 can balance the air pressure of earphone back cavity and exterior space.The radial cross-sectional shape of the leak holes 422 after second can be circle
Shape, polygon or other shapes.
In the shown embodiment, it is provided with intercommunicating pore 431 between the first cavity 410 and the second cavity 420, comes from loudspeaking
The air of device unit 10 enters in the first cavity 410 via the first front end aperture 411.Air in first cavity 410 is via even
Through-hole 431 flows into the second cavity 420, and is connected to eventually by leak holes 422 after second with outside air.
5th embodiment
Now referring to Fig. 5, that schematically shows the parts of the earphone of the 5th preferred embodiment according to the present invention
Structure.Other than rear cavity configuration, according to the earphone of the 5th preferred embodiment have with according to the 4th preferred embodiment
The roughly the same construction of earphone, wherein the structure of identity function is endowed similar appended drawing reference.Here, it is succinct for narration, only
It describes in detail to structure relevant to distinguishing characteristics, something in common repeats no more.
Same as the third embodiment to be with continued reference to Fig. 5, the rear end of the first cavity 510 does not have and outside air
The rear leak holes of connection.The front end of second cavity 520 does not have the front end aperture being connected to loudspeaker unit 10.In addition, second
The rear end of cavity 520 has leak holes 522 after second be connected to outside air.Leak holes 522 can balance earphone after second
The air pressure of back cavity and exterior space.The radial cross-sectional shape of the leak holes 522 after second can be round, polygon or other shapes
Shape.
Unlike the 4th embodiment, the length of the length of the first cavity 510 less than the second cavity 520.In other words
It says, the first cavity 510 and the second cavity 520 can have different length.
In the shown embodiment, it is provided with intercommunicating pore 531 between the first cavity 510 and the second cavity 520, comes from loudspeaking
The air of device unit 10 enters in the first cavity 510 via the first front end aperture 511.Air in first cavity 510 is via even
Through-hole 531 flows into the second cavity 520, and is connected to eventually by leak holes 522 after second with outside air.
In other words, earphone back cavity may include at least two cavitys, and one or more of at least two cavity can have
There are the rear leak holes being connected to outside air.One or more of at least two cavity can have to be connected with loudspeaker unit 10
Logical front end aperture.
The present invention is illustrated by above embodiment, but it is to be understood that, above embodiment is
Purpose for illustrating and illustrating, and be not intended to limit the invention within the scope of described embodiment.Furthermore this field
It is understood that the invention is not limited to above embodiment, introduction according to the present invention can also be made technical staff
More kinds of variants and modifications, all fall within the scope of the claimed invention for these variants and modifications.Guarantor of the invention
Shield range is defined by the appended claims and their equivalents.
Claims (10)
1. a kind of earphone, which is characterized in that there is loudspeaker unit including earphone case, in the earphone case and be located at described
The earphone back cavity at loudspeaker unit rear, the earphone back cavity include at least one cavity, and the cavity constructions are tubulose, at least
One cavity has at least three spaced sound regulating holes of length direction along the cavity.
2. earphone according to claim 1, which is characterized in that the front end of at least one cavity has and the loudspeaking
The front end aperture of device unit connection.
3. earphone according to claim 1, which is characterized in that the rear end of at least one cavity has and outside air
The rear leak holes of connection.
4. earphone according to claim 1, which is characterized in that the cavity constructions are to extend along straight line or curve.
5. earphone according to any one of claim 1 to 4, which is characterized in that the earphone back cavity includes at least two
The cavity being arranged in parallel.
6. earphone according to claim 5, which is characterized in that the earphone back cavity further includes partition wall, and at least two simultaneously
The cavity of connection setting is separated by the partition wall.
7. earphone according to claim 5, which is characterized in that the earphone back cavity further includes intercommunicating pore, and at least two simultaneously
The cavity of connection setting is connected to by the intercommunicating pore.
8. earphone according to claim 5, which is characterized in that at least two cavitys being arranged in parallel have different
Length.
9. earphone according to any one of claim 1 to 4, which is characterized in that the earphone case includes earphone front housing
With earphone rear shell, the loudspeaker unit is arranged at the earphone front housing, and the sound regulating hole is arranged at the earphone rear shell,
The earphone front housing and the earphone rear shell form the earphone case.
10. earphone according to any one of claim 1 to 4, which is characterized in that be provided with damping at the sound regulating hole
Cloth.
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CN201910116760.1A CN109936791B (en) | 2019-02-15 | 2019-02-15 | Earphone set |
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CN201910116760.1A CN109936791B (en) | 2019-02-15 | 2019-02-15 | Earphone set |
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CN109936791B CN109936791B (en) | 2021-07-27 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111447526A (en) * | 2020-03-09 | 2020-07-24 | 成都水月雨科技有限公司 | Acoustic coupling structure of in-ear earphone cavity |
CN111787472A (en) * | 2020-08-28 | 2020-10-16 | 歌尔光学科技有限公司 | Sound production structure, audio equipment and wear display device |
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