CN117729467A - In-ear earphone sleeve, design method thereof and in-ear earphone - Google Patents
In-ear earphone sleeve, design method thereof and in-ear earphone Download PDFInfo
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- CN117729467A CN117729467A CN202211097209.5A CN202211097209A CN117729467A CN 117729467 A CN117729467 A CN 117729467A CN 202211097209 A CN202211097209 A CN 202211097209A CN 117729467 A CN117729467 A CN 117729467A
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- 238000013461 design Methods 0.000 title abstract description 18
- 238000013022 venting Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 6
- 230000006978 adaptation Effects 0.000 abstract description 2
- 230000004044 response Effects 0.000 description 30
- 238000007599 discharging Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 6
- 210000003027 ear inner Anatomy 0.000 description 6
- 210000000613 ear canal Anatomy 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 210000000883 ear external Anatomy 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000012814 acoustic material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- 210000000056 organ Anatomy 0.000 description 1
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Abstract
The embodiment of the invention discloses an in-ear earphone sleeve, a design method thereof and an in-ear earphone. The in-ear earphone sleeve comprises an earphone sleeve main body which is enclosed to form a cylinder and is used for being sleeved with an audio output tube of the in-ear earphone; the earcap is sleeved on the outer side of the earphone sleeve main body in a surrounding manner and is used for tightly fitting with the auditory canal of a user when the in-ear earphone is worn; the earphone sleeve is characterized in that an acoustic leakage pipeline is arranged on the earphone sleeve main body, the acoustic leakage pipeline penetrates through two ends of the earphone sleeve main body and is used for communicating an in-ear cavity with the outside when the in-ear earphone is worn, helmholtz resonance is generated with the in-ear cavity, wherein the resonance frequency is determined by physical parameters of the acoustic leakage pipeline and the volume of the in-ear cavity, and the in-ear cavity is formed by the auditory canal of a user and the in-ear earphone sleeve. By adopting the scheme of the invention, the relatively consistent low-frequency performance and sound insulation performance of the in-ear earphone can be ensured, the adaptation process of a user end to the earphone sleeve is simplified, and the wearing comfort is improved.
Description
Technical Field
The invention relates to the technical field of earphones, in particular to an in-ear earphone sleeve, a design method thereof and an in-ear earphone.
Background
In-Ear headphones, also known as Ear canal headphones, in-Ear plugs, or In-Ear monitors (IEMs), are headphones that are used inside the human auditory organs. The in-ear earphone has been greatly developed due to the advantages of good bass, small volume, convenient carrying, certain sound insulation performance, suitability for various noise outdoor scenes, and the like.
Fig. 1 is a schematic view of an in-ear earphone as is common in the prior art. As shown in fig. 1, an in-ear earphone is generally composed of an earphone body 1, an outlet tube 2, and an earphone sleeve 3. Wherein, earphone body 1 and play sound pipe 2 fixed connection, earphone cover 3 cup joints on play sound pipe 2. When a user uses the in-ear earphone, the earphone sleeve can be attached to the inner wall of the user's auditory canal, so that the auditory canal of the user and the earphone sleeve of the in-ear earphone can form a closed in-ear cavity, better tightness is obtained, and the interference of external noise on the output sound of the sound outlet pipe is reduced.
It can be seen that the earphone sleeve plays a key role in bass performance, sound insulation performance, wearing comfort and the like as a structural coupling part of an in-ear earphone and a human ear (mainly considering an concha cavity, an ear canal opening and an external auditory canal).
Because the physiological parameters of ears of different people, such as the shape and the size of the concha cavity, the diameter of the external auditory canal, the shape of the auditory meatus and the like, are different, the earphone sleeve brings great challenges to mass production, and the earphone sleeve with more than 3 kinds, even more than 10 kinds of earphone sleeves with different sizes can be attached to the general products so as to adapt to different individuals.
Fig. 2 is a graph of the low frequency response of a conventional earphone sleeve at varying degrees of tightness. Wherein, the tightness is B > A > C from tight to loose in turn.
The same user has different low frequency performance experiences for the appropriate (a), tight (B) and loose (C) earphone covers. The tight earphone sleeve corresponds to the frequency response curve B, has high low-frequency band frequency response, is represented by excessive bass, has excessively heavy bass and choking, has serious ear blocking effect, and is particularly suitable for use scenes such as running, walking and the like; the loose earphone sleeve corresponds to the frequency response curve C, the use experience is that the bass is obviously insufficient, the noise isolation performance is poor, and especially when the earphone sleeve is used outdoors, the sound played by the speaker is easy to hear under the influence of external noise.
When more size ear muffs are available, the tight bias (B-B ') and loose bias (C-C') conditions will be improved as shown in FIG. 2.
In carrying out the present invention, the inventors have found that, since conventional earphone sleeve designs are too dependent on the tightness of wear, there are at least two problems:
1) The low-frequency performance and the sound insulation performance of the in-ear earphone perceived by different users are easily inconsistent.
2) The user needs to repeatedly select the proper earphone sleeve to obtain the best performance, and when the optional sizes of the earphone sleeve are small, the best performance can not be obtained sometimes, and when the optional sizes are too large, the waste is serious.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide the in-ear earphone sleeve, the design method thereof and the in-ear earphone, which can ensure relatively consistent low-frequency performance and sound insulation performance of the in-ear earphone, simplify the adapting process of a user side to the earphone sleeve, reduce the waste caused by the excessive earphone sleeves, and facilitate the improvement of wearing comfort.
According to a first aspect of the invention there is provided an in-ear earphone comprising:
the earphone sleeve main body is enclosed to form a cylinder and is used for sleeving a sound outlet pipe of the earphone;
the earcap is sleeved on the outer side of the earphone sleeve main body in a surrounding manner and is used for tightly fitting with the auditory canal of a user when the in-ear earphone is worn;
the earphone sleeve comprises an earphone sleeve body, wherein an acoustic leakage pipeline is arranged on the earphone sleeve body, the acoustic leakage pipeline penetrates through two ends of the earphone sleeve body, an in-ear earphone is communicated with an in-ear cavity and the outside when being worn, helmholtz resonance is generated with the in-ear cavity, the resonance frequency is determined by physical parameters of the acoustic leakage pipeline and the volume of the in-ear cavity together, and the in-ear cavity is formed by the auditory canal of a user and the in-ear earphone sleeve.
According to a second aspect of the present invention, there is provided a method of designing an in-ear earphone sleeve, comprising:
designing a headset sleeve main body which can be enclosed to form a cylinder shape so as to be sleeved with a sound outlet pipe of the headset;
an earcap which is sleeved on the outer side of the earphone sleeve main body in a surrounding manner is designed so that the in-ear earphone is tightly attached to the auditory canal of a user when being worn;
a sound leakage pipeline is arranged on the earphone sleeve main body, and penetrates through two ends of the earphone sleeve main body, so that when the in-ear earphone is worn, the sound leakage pipeline is communicated with an in-ear cavity and the outside, and generates Helmholtz resonance with the in-ear cavity, wherein the resonance frequency is determined by the physical parameters of the sound leakage pipeline and the volume of the in-ear cavity, and the in-ear cavity is surrounded by an auditory canal of a user and the in-ear earphone;
and optimally configuring physical parameters of the sound leakage pipeline, and adjusting the resonance frequency to a proper low frequency point.
According to a third aspect of the present invention there is provided an in-ear earphone comprising: an earphone body; a sound outlet pipe connected with the earphone body; and a headset sleeve; the earphone sleeve is the in-ear earphone sleeve.
The technical scheme of the embodiment of the invention can achieve the following beneficial effects:
according to the in-ear earphone sleeve, the design method thereof and the in-ear earphone provided by the embodiment of the invention, the sound leakage pipeline is arranged on the earphone sleeve main body, so that on one hand, as the sound leakage pipeline penetrates through the two ends of the earphone sleeve main body, a user can communicate an in-ear cavity with the outside by using the sound leakage pipeline when wearing the in-ear earphone, and certain sound leakage can be introduced, so that the excessively strong sound pressure and tightness in the in-ear cavity are reduced, the blocking effect and the bombing effect which are commonly existing in the close-fitting earphone sleeve are weakened, and the wearing comfort can be remarkably improved; on the other hand, when the user wears the ear-in earphone, the sound leakage pipeline can generate Helmholtz resonance with the inner ear cavity, wherein the resonance frequency is determined by the physical parameter of the sound leakage pipeline and the volume of the inner ear cavity, and for the same user, the generated resonance frequency is mainly determined by the physical parameter of the sound leakage pipeline because the volume of the inner ear cavity is basically unchanged, the low-frequency performance of the ear-in earphone is not dominant by the fit condition of the earphone sleeve and the human ear, but becomes dominant by the physical parameter of the sound leakage pipeline, so that the resonance frequency can be adjusted to a proper low-frequency point through optimizing the physical parameter of the sound leakage pipeline, the frequency response curve is improved, and in the condition that the earphone sleeve is tightly matched with the outer ear of the user, only sound leakage exists at an extremely low frequency, the subjective sound insulation effect and the air permeability of the user are not influenced, so that the product has remarkably improved consistent low-frequency performance and the sound insulation performance, the fit process of the user end to the earphone sleeve is simplified, and the waste caused by the additional earphone sleeve is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for those of ordinary skill in the art. In the drawings:
fig. 1 is a schematic view of an in-ear earphone as is common in the prior art;
FIG. 2 is a schematic diagram of the low frequency response of a conventional earphone sleeve at different degrees of tightness;
FIG. 3 is a schematic cross-sectional view of an in-ear earphone sleeve according to a first embodiment of the invention;
FIG. 4 is a schematic view of the appearance of an in-ear earphone sleeve according to a first embodiment of the invention;
fig. 5 is a schematic cross-sectional view of an in-ear earphone sleeve and an earphone body according to a first embodiment of the present invention;
FIG. 6 is a schematic view of the appearance of an in-ear earphone sleeve according to a second embodiment of the invention;
fig. 7 is a schematic top view of a cross section of an in-ear earphone sleeve according to a second embodiment of the invention;
fig. 8 is a schematic diagram of an improved frequency response curve N of an in-ear earphone according to an embodiment of the present invention compared to a frequency response curve (B, C) of a conventional earphone, where the frequency response curve B represents a tight situation and the frequency response curve C represents a loose situation;
FIG. 9 is a graph showing the low frequency response change of an in-ear earphone sleeve before and after damping adjustment according to an embodiment of the present invention;
fig. 10 is a flow chart of a design method of an in-ear earphone sleeve according to an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein.
In the following description of embodiments of the present application, "/" means or, unless otherwise indicated, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Further, unless otherwise indicated, the meaning of "a plurality" means two or more.
FIG. 3 is a schematic cross-sectional view of an in-ear earphone sleeve according to a first embodiment of the invention; FIG. 4 is a schematic view of the appearance of an in-ear earphone sleeve according to a first embodiment of the invention; fig. 5 is a schematic cross-sectional view of an in-ear earphone sleeve and an earphone body according to a first embodiment of the present invention; FIG. 6 is a schematic view of the appearance of an in-ear earphone sleeve according to a second embodiment of the invention; fig. 7 is a schematic top view of a cross section of an in-ear earphone sleeve according to a second embodiment of the invention. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 3-7, an embodiment of the present invention provides an in-ear earphone sleeve comprising:
a headphone cover main body 31 which is formed in a cylindrical shape by surrounding, and is used for being sleeved with a sound outlet pipe 2 of the ear-type headphone;
an ear cap 32 which is circumferentially fitted over the outside of the earphone sleeve body 31 for fitting the in-ear earphone tightly to the auditory canal of the user when worn;
wherein, offer the sound leakage pipeline 30 on the earphone cover main part 31, the sound leakage pipeline 30 runs through the both ends of earphone cover main part 31, and in-ear earphone is the in-ear cavity and external world of sound leakage pipeline intercommunication when wearing to produce helmholtz resonance with in-ear cavity, wherein resonant frequency is jointly determined by the physical parameter of sound leakage pipeline 30 and the volume of in-ear cavity, and in-ear cavity is enclosed by user's ear canal and in-ear earphone cover.
The newly designed earphone sleeve can avoid the occurrence of the ear blocking effect on the premise that users wear the earphone sleeve tightly, so that the relatively consistent low-frequency performance and sound insulation performance can be ensured for different users. In this way, with performance being guaranteed, wastage of providing a plurality of earphone covers can be avoided, and the tedious adaptation of the user side and the process of selecting the earphone cover are simplified. That is, only one earphone sleeve which is tightly enough to wear is provided for the user, so that the generation of the ear blocking effect can be avoided, and the consistent hearing performance can be realized. The specific design principles will be set forth in detail below.
In the first embodiment of the in-ear earphone sleeve shown in fig. 3-5, the leakage duct 30 opens between an outer wall 311 and an inner wall 312 of the earphone sleeve body 31. The leakage pipe 30 penetrates both ends of the earphone sleeve main body 31, and an opening 310 is added to the top of the ear cap 32 from the external appearance. According to the assembled schematic cross-sectional view of fig. 5, the in-ear cavity of the user may communicate with the outside through the leakage pipe 30 when the user wears the in-ear earphone.
In a second embodiment of the in-ear earphone sleeve shown in fig. 6-7, the sound release tube 30 is provided on the inner wall of the earphone sleeve body 31; the inner wall of the earphone sleeve main body 31 is provided with a sound guiding groove 320, and the top of the ear cap 32 is provided with a small hole corresponding to the sound guiding groove 320. When the earphone sleeve main body 31 is sleeved on the sound outlet tube 2 of the in-ear earphone, the inner wall of the earphone sleeve main body 31 and the outer wall of the sound outlet tube 2 form the sound leakage pipeline 30 at the sound guide groove 320. It can be seen that the leakage path in the second embodiment of the in-ear earphone sleeve is formed by the earphone sleeve main body 31 and the sound outlet tube 2 of the earphone, and this design has a simple structure, and the difficulty and cost of production and manufacture can be reduced.
It will be appreciated that the sound venting duct formed in the second embodiment of the in-ear earphone sleeve also extends through both ends of the earphone sleeve body 31, and the top of the ear cap 32 is also provided with an opening 310 from the external appearance, through which the in-ear cavity of the user can also communicate with the outside when the in-ear earphone is worn by the user.
Since the in-ear earphone is provided with the sound discharging pipeline 30, when a user wears the in-ear earphone, the in-ear cavity and the outside can be communicated by using the sound discharging pipeline, and Helmholtz resonance can be generated with the in-ear cavity, wherein the resonance frequency is determined by the physical parameters of the sound discharging pipeline and the volume of the in-ear cavity.
The following explains the acoustic principle:
under the condition that the earphone sleeve is tightly matched with the human ear, the additionally arranged sound leakage pipeline can generate Helmholtz resonance with the cavity in the ear. Assuming that the added acoustic venting pipe is a uniform circular pipe, the resonance frequency of the generated helmholtz resonance has the following empirical formula:
wherein: s is the cross-sectional area of the canal, d is the diameter of the canal, l is the length of the canal, V is the volume of the in-ear cavity, c is the speed of sound, and k is the correction factor.
For the same user, V is basically unchanged, f 0 Is determined by the physical parameters S, l, d of the added sound release pipeline, wherein d is less than l, d is equal to f 0 Less influence and therefore the resonance frequency f 0 Mainly determined by the physical parameters S and l of the added sound release pipeline.
By optimally configuring physical parameters of the acoustic venting duct, e.g. reducing the cross-sectional area S of the duct, increasing the length l of the duct, the resonance frequency f can be set 0 And adjusting to a proper low frequency point to meet the low frequency performance requirement and improve the frequency response curve.
FIG. 8 is a schematic diagram of an improved frequency response curve N of an in-ear earphone according to an embodiment of the present invention compared with a frequency response curve (B, C) of a conventional earphone, wherein the frequency response curve B represents a tight bias conditionC represents a partial looseness condition. Specifically, by adjusting the physical parameters of the leakage pipe, a suitable Helmholtz resonance frequency f can be obtained 0 Further, the frequency response curve B in the original wearing compact state is effectively improved, and the low frequency band of the frequency response curve B is pulled down to a proper range from the original too high amplitude, so that an improved frequency response curve N shown in fig. 8 is obtained. Therefore, the effects of blocking ears and bombing heads in a low frequency band can be effectively reduced or even eliminated, and the hearing is obviously improved. When the same specification of the earphone sleeve is applied to different users, only the volume of the in-ear cavity is different, and the low-frequency response of the frequency response curve N shown in fig. 8 is substantially the same.
Therefore, the in-ear earphone sleeve provided by the embodiment of the invention has the advantages that the sound leakage pipeline is additionally arranged on the earphone sleeve main body, and under the condition that the earphone sleeve is tightly matched with the human ear, the sound leakage pipeline can generate Helmholtz resonance with the cavity in the ear, so that an acoustic model of the earphone sleeve with the sound leakage pipeline is established, and the resonance frequency f can be effectively increased by optimizing and adjusting the physical parameters of the sound leakage pipeline 0 And the frequency response curve B is improved to the frequency response curve N according to the original tight frequency response curve B in FIG. 8.
Therefore, the in-ear earphone sleeve provided by the embodiment of the invention can provide a wearing effect with tight bias, and can effectively overcome the defects of low-frequency over-strong, choking, head bombing and the like under the condition of tight bias wearing. That is, a great number of earphone sleeves need to be provided for the user to select to achieve the most suitable frequency response curve, but only a small number of earphone sleeves need to be provided at present, so long as the user is ensured to wear the earphone sleeves to achieve the effect of tightening, thereby simplifying the adapting process of the user side to the earphone sleeves and reducing the waste caused by the additional transmission of the excessive earphone sleeves.
In addition, under the condition that the earphone sleeve is always in close fit, the earphone sleeve can meet the proper low-frequency performance requirement and the sound insulation effect is not influenced. The low frequency response is not dominated by the fit tightness of the earphone sleeve and the human ear, but rather is dominated by the physical parameters of the added sound release pipeline, so that the low frequency performance consistency is remarkably improved. Meanwhile, due to the existence of the sound leakage pipeline, certain sound leakage can be introduced, the excessively strong sound pressure in the cavity in the ear can be reduced, the ear blocking/head bombing effect caused by close-fitting of the earphone sleeve can be obviously reduced, and the wearing comfort is obviously improved.
In some preferred embodiments, the damping of the resonance system may be adjusted by changing the physical material related to the acoustic venting pipe, or adding auxiliary acoustic materials such as a sound-transmitting mesh, for example, by setting the sound-transmitting mesh at the opening at one or both ends of the acoustic venting pipe, so as to meet different design requirements and further improve the frequency response curve. Fig. 9 is a schematic diagram of low frequency response change before and after damping adjustment of an in-ear earphone sleeve according to an embodiment of the present invention, wherein an N curve represents non-damping adjustment and an N' curve represents damping adjustment. As can be seen from fig. 9, the amplitude of the low frequency response of the in-ear earphone sleeve is reduced after the damping adjustment.
In the practical earphone sleeve design, the additionally arranged sound discharging pipeline is not limited to a uniform circular pipe shape, and can be designed into other cross-section shapes such as square, rectangle, ellipse and the like according to requirements. The different cross-sectional shapes of the pipelines change the physical parameters of the sound discharging pipeline, thereby influencing the resonance frequency f of the Helmholtz resonance generated by the sound discharging pipeline and the cavity in the ear 0 。
In the practical earphone sleeve design, the additionally arranged sound discharging pipeline is a uniform pipe, so that the manufacturing difficulty can be reduced. Of course, the invention is not limited to the uniform tube, and the non-uniform tube, such as a variable cross-section tube, a bent tube, etc., can be designed according to the requirements, and the non-uniform tube can reduce the introduced noise, thereby further improving the sound quality of the in-ear earphone. In addition, the sound discharging pipeline is designed into a non-uniform pipe, and the physical parameters of the sound discharging pipeline can be changed, so that the resonance frequency f of Helmholtz resonance generated by the sound discharging pipeline and the in-ear cavity is influenced 0 。
In the practical earphone sleeve design, the number of the additionally arranged sound discharging pipelines can be multiple, and the multiple sound discharging pipelines can be mutually connected in parallel and/or in cascade so as to improve the effect of a single pipeline and improve the tone quality of the in-ear earphone.
The invention also provides a design method of the in-ear earphone sleeve. Fig. 10 is a flow chart of a design method of an in-ear earphone sleeve according to an embodiment of the invention. As shown in fig. 10, a design method of an in-ear earphone sleeve according to an embodiment of the present invention includes:
step S110, designing a headset sleeve main body capable of being enclosed to form a cylinder shape so as to be sleeved with a sound outlet pipe of the ear headset;
step S120, designing an earcap which is sleeved on the outer side of the earphone sleeve main body in a surrounding manner so that the in-ear earphone is tightly attached to the auditory canal of a user when being worn;
step S130, a sound leakage pipeline is arranged on the earphone sleeve main body, the sound leakage pipeline penetrates through two ends of the earphone sleeve main body, so that the sound leakage pipeline is communicated with an in-ear cavity and the outside when the in-ear earphone is worn, helmholtz resonance is generated with the in-ear cavity, wherein the resonance frequency is determined by the physical parameters of the sound leakage pipeline and the volume of the in-ear cavity, and the in-ear cavity is surrounded by an auditory canal of a user and the in-ear earphone sleeve; and
and step S140, optimally configuring physical parameters of the sound leakage pipeline, and adjusting the resonance frequency to a proper low frequency point.
In some method embodiments, the step S130 of opening the sound release pipe on the earphone sleeve main body may specifically be: and the sound leakage pipeline is arranged between the outer wall and the inner wall of the earphone sleeve main body.
In some method embodiments, the step S130 of opening the sound release pipe on the earphone sleeve main body may further specifically be: the inner wall of the earphone sleeve main body is provided with a sound guide groove, and when the earphone sleeve main body is sleeved on the sound outlet pipe of the in-ear earphone, the inner wall of the earphone sleeve main body and the outer wall of the sound outlet pipe form the sound leakage pipeline at the sound guide groove.
Through the above-mentioned physical parameters of the optimized configuration sound release pipeline of step S140, the resonance frequency is adjusted to a suitable low frequency point, so as to meet the low frequency performance requirement and improve the frequency response curve. Means by which the physical parameters of the acoustic venting pipe may be optimally configured include, but are not limited to: reducing the sectional area S of the sound leakage pipeline, increasing the length l of the sound leakage pipeline, changing the physical material related to the sound leakage pipeline, arranging sound transmission mesh cloth at the opening at one end or two ends of the sound leakage pipeline, and the like. The specific description of the above means can be found in the embodiments of the in-ear earphone as described above, and will not be repeated here.
The invention also provides an in-ear earphone, which belongs to the technical conception with the in-ear earphone sleeve. This in-ear earphone includes: an earphone body; a sound outlet pipe connected with the earphone body; and a headset sleeve; the earphone sleeve is the in-ear earphone sleeve.
In summary, according to the in-ear earphone sleeve, the design method thereof and the in-ear earphone provided by the embodiment of the invention, the sound leakage pipeline is arranged on the earphone sleeve main body, so that on one hand, as the sound leakage pipeline penetrates through the two ends of the earphone sleeve main body, a user can communicate an in-ear cavity with the outside by using the sound leakage pipeline when wearing the in-ear earphone, and a certain sound leakage can be introduced, thereby reducing the excessively strong sound pressure and the tightness in the in-ear cavity, weakening the plugging and bombing effects commonly existing in the close-fitting earphone sleeve, and remarkably improving the wearing comfort; on the other hand, when the user wears the ear-in earphone, the sound leakage pipeline can generate Helmholtz resonance with the inner ear cavity, wherein the resonance frequency is determined by the physical parameter of the sound leakage pipeline and the volume of the inner ear cavity, and for the same user, the generated resonance frequency is mainly determined by the physical parameter of the sound leakage pipeline because the volume of the inner ear cavity is basically unchanged, the low-frequency performance of the ear-in earphone is not dominant by the fit condition of the earphone sleeve and the human ear, but becomes dominant by the physical parameter of the sound leakage pipeline, so that the resonance frequency can be adjusted to a proper low-frequency point through optimizing the physical parameter of the sound leakage pipeline, the frequency response curve is improved, and in the condition that the earphone sleeve is tightly matched with the outer ear of the user, only sound leakage exists at an extremely low frequency, the subjective sound insulation effect and the air permeability of the user are not influenced, so that the product has remarkably improved consistent low-frequency performance and the sound insulation performance, the fit process of the user end to the earphone sleeve is simplified, and the waste caused by the additional earphone sleeve is reduced.
The present invention is not limited to the specific embodiments described above, but any modifications, equivalents, improvements and modifications within the scope of the invention are possible to those skilled in the art, and are intended to be included in the scope of the claims.
Claims (10)
1. An in-ear earphone sleeve comprising:
the earphone sleeve main body is enclosed to form a cylinder and is used for sleeving a sound outlet pipe of the earphone;
the earcap is sleeved on the outer side of the earphone sleeve main body in a surrounding manner and is used for tightly fitting with the auditory canal of a user when the in-ear earphone is worn;
the earphone is characterized in that an acoustic leakage pipeline is arranged on the earphone sleeve main body, the acoustic leakage pipeline penetrates through two ends of the earphone sleeve main body, the acoustic leakage pipeline is communicated with an in-ear cavity and the outside when the earphone is worn, helmholtz resonance is generated with the in-ear cavity, the resonance frequency is determined by physical parameters of the acoustic leakage pipeline and the volume of the in-ear cavity, and the in-ear cavity is surrounded by an auditory canal of a user and the in-ear earphone sleeve.
2. The in-ear earphone sleeve according to claim 1, wherein the sound release tube is open between an outer wall and an inner wall of the earphone sleeve body.
3. The in-ear earphone as recited in claim 1, wherein,
the sound leakage pipeline is arranged on the inner wall of the earphone sleeve main body; the inner wall of the earphone sleeve main body is provided with a sound guide groove, and when the earphone sleeve main body is sleeved on a sound outlet pipe of the in-ear earphone, the inner wall of the earphone sleeve main body and the outer wall of the sound outlet pipe form a sound leakage pipeline at the sound guide groove.
4. An in-ear earphone as claimed in any one of claims 1-3, characterized in that the leakage duct is provided with a sound-transmitting mesh at the opening of one or both ends.
5. An in-ear earphone as claimed in any one of claims 1-3, wherein the sound venting duct is a uniform tube or a non-uniform tube.
6. An in-ear earphone as claimed in any one of claims 1-3, wherein the number of sound release ducts is plural, and a plurality of the sound release ducts are connected in parallel and/or in cascade with each other.
7. A method of designing an in-ear earphone sleeve, comprising:
designing a headset sleeve main body which can be enclosed to form a cylinder shape so as to be sleeved with a sound outlet pipe of the headset;
an earcap which is sleeved on the outer side of the earphone sleeve main body in a surrounding manner is designed so that the in-ear earphone is tightly attached to the auditory canal of a user when being worn;
a sound leakage pipeline is arranged on the earphone sleeve main body, and penetrates through two ends of the earphone sleeve main body, so that when the in-ear earphone is worn, the sound leakage pipeline is communicated with an in-ear cavity and the outside, and generates Helmholtz resonance with the in-ear cavity, wherein the resonance frequency is determined by the physical parameters of the sound leakage pipeline and the volume of the in-ear cavity, and the in-ear cavity is surrounded by an auditory canal of a user and the in-ear earphone;
and optimally configuring physical parameters of the sound leakage pipeline, and adjusting the resonance frequency to a proper low frequency point.
8. The method according to claim 7, wherein the step of providing a sound release pipe on the earphone sleeve main body includes:
and the sound leakage pipeline is arranged between the outer wall and the inner wall of the earphone sleeve main body.
9. The method according to claim 7, wherein the step of providing a sound release pipe on the earphone sleeve main body includes:
the inner wall of the earphone sleeve main body is provided with an acoustic guide groove, and when the earphone sleeve main body is sleeved on an acoustic outlet pipe of the in-ear earphone, the inner wall of the earphone sleeve main body and the outer wall of the acoustic outlet pipe form an acoustic leakage pipeline at the acoustic guide groove.
10. An in-ear headphone, comprising:
an earphone body;
a sound outlet pipe connected with the earphone body; and
an earphone sleeve;
characterized in that the earphone sleeve is an in-ear earphone sleeve according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211097209.5A CN117729467A (en) | 2022-09-08 | 2022-09-08 | In-ear earphone sleeve, design method thereof and in-ear earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211097209.5A CN117729467A (en) | 2022-09-08 | 2022-09-08 | In-ear earphone sleeve, design method thereof and in-ear earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117729467A true CN117729467A (en) | 2024-03-19 |
Family
ID=90205773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211097209.5A Pending CN117729467A (en) | 2022-09-08 | 2022-09-08 | In-ear earphone sleeve, design method thereof and in-ear earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117729467A (en) |
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2022
- 2022-09-08 CN CN202211097209.5A patent/CN117729467A/en active Pending
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