CN213990968U - Earphone set - Google Patents
Earphone set Download PDFInfo
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- CN213990968U CN213990968U CN202022592884.8U CN202022592884U CN213990968U CN 213990968 U CN213990968 U CN 213990968U CN 202022592884 U CN202022592884 U CN 202022592884U CN 213990968 U CN213990968 U CN 213990968U
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Abstract
The utility model relates to an earphone technical field, concretely relates to earphone, this earphone includes: the shell is internally provided with an accommodating cavity and comprises a sound outlet pipe communicated with the accommodating cavity; the sound production unit is arranged in the accommodating cavity, and sound produced by the sound production unit is transmitted out through the sound tube; the earplug is sleeved on the sound outlet pipe; the sound outlet tube comprises a first tube section and a second tube section, wherein the second tube section is arranged close to the earplug, and the inner diameter of the second tube section is larger than that of the first tube section. The high-frequency characteristic of the earphone can be extended by expanding the inner diameter of the second pipe section of the sound outlet pipe, so that the whole listening frequency range of the earphone is widened.
Description
Technical Field
The utility model relates to an earphone technical field, concretely relates to earphone.
Background
The structure of the earphone is divided into an earphone front shell, a sound production unit and an earphone rear shell. A wired headset would have a cord and plug. The wireless headset may have a bluetooth chip, a PCB board, a battery, etc.
With the development of science and technology, people are increasingly pursuing the tone quality of earphones. The effective frequency range (frequency range) of the earphone is required to be wider and wider, and the high-frequency ductility is required to be better and better. For this reason, various designs have been made.
For example, a half-in-the-ear bass tube design is performed to extend the effective frequency range of low frequencies. The multi-sound-producing unit is used for balancing the whole frequency range like a sound box, the bass unit is used for being responsible for a bass part, the treble unit is used for being responsible for a treble part and the like, but the multi-sound-producing unit is high in design cost and difficult to assemble.
SUMMERY OF THE UTILITY MODEL
The present invention aims to solve the above technical problems in the related art at least to some extent. Therefore, the utility model provides an earphone solves above-mentioned at least one technical problem.
In order to achieve the above object, the present invention provides a headset, including:
the sound tube comprises a shell, a sound tube body and a sound tube body, wherein an accommodating cavity is formed in the shell, and the shell comprises a sound outlet tube communicated with the accommodating cavity;
the sound production unit is arranged in the accommodating cavity, and sound produced by the sound production unit is transmitted out through the sound tube;
the earplug is sleeved on the sound outlet pipe;
the sound outlet pipe comprises a first pipe section and a second pipe section, the second pipe section is arranged close to the earplug, and the inner diameter of the second pipe section is larger than that of the first pipe section.
In addition, according to the present invention, the earphone can further have the following additional technical features:
according to an embodiment of the present invention, the first pipe section and the second pipe section are equal inner diameter pipe sections.
According to the utility model discloses an embodiment, the internal diameter of second pipeline section with the internal diameter ratio scope of first pipeline section is: 1.1-1.25.
According to an embodiment of the invention, the inner diameter of the first pipe section is 3.5-5 mm.
According to an embodiment of the present invention, the length ratio range of the first pipe section to the second pipe section is: 2-4: 1-3.
According to the utility model discloses an embodiment, the length of first pipeline section is 2.8mm, the length of second pipeline section is 4mm, the internal diameter of first pipeline section is 3.5mm, the internal diameter of second pipeline section is 4.5 mm.
According to an embodiment of the invention, the inner diameter of the second pipe section gradually becomes larger from the first end to the second end of the second pipe section, wherein the first end of the second pipe section is connected with the first pipe section.
According to the utility model discloses an embodiment, first pipeline section with form the block step in butt joint department on the outer peripheral edge of second pipeline section, form on the inner periphery of earplug be used for with the draw-in groove of block step block.
According to an embodiment of the present invention, the housing includes:
a front housing;
and the rear shell is butted with the front shell, and the rear shell and the front shell form the accommodating cavity.
According to the utility model discloses an embodiment, sound generating unit includes any kind or the combination of at least two kinds in moving iron, moving coil or piezoceramics loudspeaker.
Compared with the prior art, the utility model discloses following beneficial effect has:
the high-frequency characteristic of the earphone can be extended by expanding the inner diameter of the second pipe section of the sound outlet pipe, so that the whole listening frequency range of the earphone is widened.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a front view of an earphone according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a cross-sectional view of an earphone according to an embodiment of the present invention 1;
fig. 4 is a cross-sectional view of an earphone according to an embodiment of the present invention 2;
fig. 5 is a cross-sectional view of an embodiment of the present invention, showing a headset in fig. 3;
FIG. 6 is a cross-sectional view of a prior art earphone;
fig. 7 is a graph of the acoustic performance of a prior art earphone and the earphone of fig. 3-5;
fig. 8 is a graph showing the acoustic simulation of the earphone in the prior art and the earphone in the present embodiment.
The reference numbers are as follows:
the earphone 100, the front shell 10, the rear shell 11, the sound outlet tube 12, the first tube segment 120, the second tube segment 121, the accommodating cavity 13, the sound generating unit 14, the earplug 15, the earphone 100 'and the sound outlet tube 12'.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
For convenience of description, spatially relative terms, such as "bottom," "front," "upper," "oblique," "lower," "top," "inner," "horizontal," "outer," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. This spatially relative relationship is intended to encompass different orientations of the mechanism in use or operation in addition to the orientation depicted in the figures. For example, if the mechanism in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below.
Referring to fig. 1-2, some embodiments of the present invention provide an in-ear headphone 100, the headphone 100 including:
a housing, the housing comprising: the sound emitting device comprises a front shell 10, a rear shell 11 butted with the front shell 10 and a sound emitting pipe 12, wherein the front shell 10 and the rear shell 11 form an accommodating cavity 13, and the sound emitting pipe 12 is communicated with the accommodating cavity 13;
the sound generating unit 14 is arranged in the accommodating cavity 13 and opposite to the sound outlet pipe 12, and sound generated by the sound generating unit 14 is transmitted out through the sound outlet pipe 12, specifically, in this embodiment, the sound generating unit 14 may be any one of a moving iron, a moving coil, or a piezoelectric ceramic horn or a combination of at least two of them;
the earplug 15 is sleeved on the outer peripheral surface of the sound outlet pipe 12, and specifically, the earplug 15 can be made of a soft material;
the sound emitting tube 12 includes a first tube segment 120 and a second tube segment 121, the first tube segment 120 is disposed near the sound emitting unit 14, the second tube segment 121 is disposed near the earplug 15, and an inner diameter of the second tube segment 121 is larger than an inner diameter of the first tube segment 120.
In this embodiment, the first tube segment 120 and the second tube segment 121 form a snap step at the joint on the outer circumference, and a snap groove for snap-fitting with the snap step is formed on the inner circumference of the earplug 15. The earplug 15 is fixed on the clamping step 122 through a clamping groove on the earplug 15 to realize the fixed installation of the earplug 15.
In this embodiment, the first pipe section 120 and the second pipe section 121 may be equal-diameter pipe sections, that is, the inner diameters of the inner walls of the first pipe section 120 are equal, the inner diameters of the inner walls of the second pipe section 121 are equal, due to the limitation of human ear space, the inner diameter of the first pipe section 120 is generally 3.5-5mm, and the expansion ratio of the inner diameter of the second pipe section 121 to the inner diameter of the first pipe section 120 is 10% -25%, that is, the ratio of the inner diameter of the second pipe section 121 to the inner diameter of the first pipe section 120 is in the range: 1.1-1.25, for example, if the inner diameter of first tube segment 120 is 3.5mm, the inner diameter of second tube segment 121 may be expanded by 25%, i.e. the inner diameter of second tube segment 121 is 4.2mm, i.e. the inner diameter of second tube segment 121 is 1.25 times the inner diameter of first tube segment 120, and the ratio of the inner diameter of second tube segment 121 to the inner diameter of first tube segment 120 is 1.25. Accordingly, if the inner diameter of first tube segment 120 is 5mm, the inner diameter of second tube segment 121 is expanded by 10%, i.e., the inner diameter of second tube segment 121 is 5.5mm, i.e., the inner diameter of second tube segment 121 is 1.1 times the inner diameter of first tube segment 120, and the ratio of the inner diameter of second tube segment 121 to the inner diameter of first tube segment 120 is 1.1.
It should be noted that the first pipe section 120 may be a pipe section with a constant inner diameter, the second pipe section 121 may be a pipe section with a non-constant inner diameter, for example, the second pipe section 121 may be in a trumpet shape, and the inner diameter of the second pipe section 121 gradually increases from the first end to the second end of the second pipe section 121, for example, the inner diameter changes exponentially, and the like, wherein the first end of the second pipe section 121 is connected to the first pipe section 120.
Further, as shown in fig. 3, the length of the first pipe segment 120 may account for 40% -80% of the sound outlet pipe 12, for example, the length of the first pipe segment 120 may account for 40%, 60% or 80% of the sound outlet pipe 12. Accordingly, the length of the second pipe segment 121 may account for 60%, 40% or 20% of the sound tube 12, i.e. the ratio of the length of the first pipe segment 120 to the length of the second pipe segment 121 ranges from: 2-4: 1-3.
As shown in fig. 6, the inner diameter of the sound outlet tube 12 ' of the earphone 100 ' of the prior art is constant, and the acoustic performance curves of the earphone 100 and the earphone 100 ' of the prior art in fig. 3-5 are shown in fig. 7.
Specifically, in the present embodiment, the length of the first pipe segment 120 may be 2.8mm, the length of the second pipe segment 121 may be 4mm, the inner diameter of the first pipe segment 120 is 3.5mm, and the inner diameter of the second pipe segment 121 is 4.5 mm.
Next, a simulation experiment is performed on the sound outlet tube in the prior art and the sound outlet tube in the present embodiment, where in the prior art, as shown in fig. 6, the inner diameter of the sound outlet tube 12 'in the earphone 100' is not changed, a sound outlet tube with a length of 6.8mm and an inner diameter of 3.5mm is selected, the total length of the sound outlet tube 12 in the present embodiment is 6.8mm, where the length of the first tube segment 120 is 2.8mm and the inner diameter is 3.5mm, the length of the second tube segment 121 is 4mm and the inner diameter is 4.5mm, and a result of the simulation experiment is shown in fig. 8.
As can be seen from fig. 8, the high-frequency resonance peak in this embodiment is shifted to the right, which is beneficial to extending the high-frequency characteristics of the earphone. In particular, acoustically, the acoustic structure pipe, the cavity, and the like can be analogized to inductance and capacitance, respectively. The structure of the electric end corresponding to the pipeline is an inductor;
thus, the analog inductance of a pipe is inversely proportional to the square of the cross-sectional radius. The sound emitting tube 12 of the present embodiment is designed without changing the length of the tube, and the sectional area of a part of the tube, i.e. the radius of the tube section, is increased, so that for the whole sound emitting tube, the tube length: l isThis example＜LPrior Art。
While the resonance peak in the embodiment of the upper figure is shifted to the right by about 9kHz, the peak is formed by the resonance between the sound outlet tube 12 of the earphone and the cavity of the test simulated ear.
Previous analysis, LThis example＜LPrior ArtAnd (3) the simulated ear cavity is unchanged, and the simulated ear cavity C is also unchanged, so that the resonance frequency is obtained from the formula (2): f. ofThis example＞fPrior Art。
Finally, the resonance peak of the sound outlet tube 12 of the present embodiment is shifted to the right, so that the whole listening frequency range of the earphone is widened.
It should be noted that, in this embodiment, the length of the sound emitting tube 12 is unchanged compared with the prior art, and in the actual design process, a person skilled in the art can flexibly adjust the length of the sound emitting tube 12 as needed, and further perform the tuning of the sound quality based on the length change of the sound emitting tube 12.
In this embodiment, the earphone 100 is an in-ear earphone, but this embodiment is not limited thereto, and the design structure of the sound outlet tube 12 may also be expanded to be applied to other earphone acoustic structures, which is not described herein again.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An earphone, comprising:
the sound tube comprises a shell, a sound tube body and a sound tube body, wherein an accommodating cavity is formed in the shell, and the shell comprises a sound outlet tube communicated with the accommodating cavity;
the sound production unit is arranged in the accommodating cavity;
the earplug is sleeved on the sound outlet pipe;
the sound outlet pipe comprises a first pipe section and a second pipe section, the second pipe section is arranged close to the earplug, and the inner diameter of the second pipe section is larger than that of the first pipe section.
2. The headset of claim 1, wherein the first tube section and the second tube section are both equal inner diameter tube sections.
3. The headset of claim 2,
the ratio range of the inner diameter of the second pipe section to the inner diameter of the first pipe section is as follows: 1.1-1.25.
4. The earpiece of claim 3, wherein the first tube section has an inner diameter of 3.5-5 mm.
5. The headset of claim 3, wherein the ratio of the length of the first tube segment to the length of the second tube segment ranges from: 2-4: 1-3.
6. The earphone according to claim 5 wherein the first tube section has a length of 2.8mm, the second tube section has a length of 4mm, the first tube section has an inner diameter of 3.5mm and the second tube section has an inner diameter of 4.5 mm.
7. The headset of claim 1, wherein the second tube segment has a gradually increasing inner diameter from a first end to a second end of the second tube segment, wherein the first end of the second tube segment is connected to the first tube segment.
8. The earphone according to claim 1, wherein the first tube section and the second tube section form a clamping step at the butt joint on the outer periphery, and a clamping groove for clamping with the clamping step is formed on the inner periphery of the earplug.
9. The headset of any of claims 1-8, wherein the housing comprises:
a front housing;
and the rear shell is butted with the front shell, and the rear shell and the front shell form the accommodating cavity.
10. The headset of claim 9, wherein the sound generating unit comprises any one of a moving iron, a moving coil, or a piezo ceramic horn, or a combination of at least two of the foregoing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022592884.8U CN213990968U (en) | 2020-11-10 | 2020-11-10 | Earphone set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022592884.8U CN213990968U (en) | 2020-11-10 | 2020-11-10 | Earphone set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213990968U true CN213990968U (en) | 2021-08-17 |
Family
ID=77262219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022592884.8U Active CN213990968U (en) | 2020-11-10 | 2020-11-10 | Earphone set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213990968U (en) |
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2020
- 2020-11-10 CN CN202022592884.8U patent/CN213990968U/en active Active
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