CN111970596A - Earphone set - Google Patents
Earphone set Download PDFInfo
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- CN111970596A CN111970596A CN202010823360.7A CN202010823360A CN111970596A CN 111970596 A CN111970596 A CN 111970596A CN 202010823360 A CN202010823360 A CN 202010823360A CN 111970596 A CN111970596 A CN 111970596A
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- 230000004308 accommodation Effects 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims description 15
- 210000001503 joint Anatomy 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 8
- 238000003032 molecular docking Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 230000004044 response Effects 0.000 description 7
- 239000000178 monomer Substances 0.000 description 4
- 210000000613 ear canal Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 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
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention discloses an earphone, which comprises: a housing formed with an accommodation chamber; the loudspeaker single body is arranged in the accommodating cavity and divides the accommodating cavity into a front sound cavity and a rear sound cavity; the shell is also provided with a resonance tube, one end of the resonance tube is communicated with the front sound cavity, and the other end of the resonance tube is closed. The technical scheme of the invention aims to eliminate the sound of certain specific frequency bands so as to improve the sound quality of the earphone and meet the use requirements of users.
Description
Technical Field
The invention relates to the technical field of sound energy conversion, in particular to an earphone.
Background
Along with the pursuit of people on the visual and audio effect, earphone products are gradually developing towards the direction of more convenient carrying and better tone quality. The occurrence of the real wireless earphone solves the trouble that the user is wound by the earphone cord, but the sound quality effect of the real wireless earphone still needs to be improved.
Due to the special structure of the ear canal of a user, when the user wears the real wireless earphone, the sound of certain specific frequency bands and the ear canal generate resonance, so that the user is particularly sensitive to the sound of the frequency bands, and discomfort in use is caused. If the sound of these specific frequencies is eliminated by the digital signal technology, there may be situations where the power is too high, the sound is distorted or the sound is unnatural, and the user's requirement for the use of the true wireless headset cannot be satisfied.
Disclosure of Invention
The invention mainly aims to provide an earphone, aiming at eliminating sound of certain specific frequency bands so as to improve the sound quality of the earphone and meet the use requirements of users.
In order to achieve the above object, the present invention provides a headset, including:
a housing formed with an accommodation chamber; and
the loudspeaker single body is arranged in the accommodating cavity and divides the accommodating cavity into a front sound cavity and a rear sound cavity;
the shell is also provided with a resonance tube, one end of the resonance tube is communicated with the front sound cavity, and the other end of the resonance tube is closed.
Optionally, a length of the resonator tube is defined as L, a maximum linear dimension of a cross section of the resonator tube is defined as n, and L and n satisfy: l is more than or equal to 5n and less than or equal to 30 n.
Optionally, L and n satisfy: l is more than or equal to 10n and less than or equal to 20 n.
Optionally, the housing includes a front shell and a rear shell, the front shell is connected to the rear shell to form the accommodating cavity, and the rear sound cavity is formed between the rear shell and the speaker unit;
the shell further comprises a loudspeaker support, the loudspeaker support is connected between the front shell and the loudspeaker single body, the loudspeaker single body and the front shell are separated to form the front sound cavity and the resonance tube, and the loudspeaker support is further provided with a communication hole for communicating the front sound cavity and the resonance tube.
Optionally, the speaker support includes a front side and a rear side that are disposed opposite to each other, the rear side faces the speaker unit, the front side is recessed to form a first groove, the first groove and the housing enclose to form the resonance tube, the rear side is recessed to form a second groove, the second groove and the speaker unit enclose to form the front acoustic cavity, and the speaker support is further provided with a communication hole that communicates the first groove and the second groove.
Optionally, a sound outlet is formed in the housing, a sound outlet butt joint hole is formed in the speaker support, the sound outlet butt joint hole is communicated with the front sound cavity and penetrates through the front side surface of the speaker support, and the sound outlet butt joint hole is communicated with the sound outlet;
one end of the first groove is adjacent to the sound outlet butt joint hole, and the other end of the first groove extends towards the direction far away from the sound outlet butt joint hole.
Optionally, the communication hole is located at a position where a middle portion of the second groove is biased away from the sound outlet docking hole.
Optionally, the speaker support is further provided with an acoustic mesh, and the acoustic mesh covers the communication hole.
Optionally, the casing includes preceding shell and backshell, preceding shell is connected the backshell forms hold the chamber, preceding shell with speaker monomer encloses to close and forms preceding acoustic cavity, the backshell with speaker monomer encloses to close and forms the back acoustic cavity, the resonating tube is connected preceding shell, and is located preceding shell deviates from one side of backshell.
Optionally, the housing further includes a sound outlet tube, the sound outlet tube is connected to the front housing and located on a side of the front housing away from the rear housing, and the resonance tube abuts the sound outlet tube.
According to the technical scheme, the resonant tube is formed on the shell, one end of the resonant tube is communicated with the front sound cavity, and the other end of the resonant tube is set to be in a closed state. When the earphone works, sound emitted by the loudspeaker monomer enters the resonance tube through the front sound cavity, and when the sound frequency reaches the natural frequency of the resonance tube, the resonance tube resonates, so that the sound of the frequency can be eliminated, and the sound frequency near the natural frequency of the resonance tube can be weakened to a certain extent. The technical scheme of the invention can adjust the size of the resonance tube according to the sound frequency to be eliminated or weakened so that the natural frequency of the resonance tube is consistent with or close to the sound frequency to be weakened or weakened, thereby achieving the effect of eliminating or weakening the sensitive sound to the human body, improving the comfort of the user in hearing and enabling the earphone to meet the use requirement of the user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a headset according to the present invention;
fig. 2 is an exploded view of the headset of fig. 1;
fig. 3 is a cross-sectional view of the headset of fig. 1 in longitudinal section;
fig. 4 is a schematic structural view of a speaker holder of the headset of fig. 1;
FIG. 5 is a schematic view of the speaker stand of FIG. 4 from another perspective;
fig. 6 is a graph of the frequency response of the headset of fig. 1;
fig. 7 is a cross-sectional view of another embodiment of the headset of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Earphone set | 341 | Communicating |
| 10 | |
35 | |
| 30 | |
351 | |
| 31 | |
3511 | The |
| 32 | Containing |
353 | |
| 321 | Front |
3531 | |
| 322 | Rear |
355 | Sounding |
| 323 | |
36 | |
| 33 | |
50 | |
| 34 | Resonant tube |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are 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" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the present invention provides an earphone 100, specifically a true wireless earphone, where the earphone 100 is in signal connection with a mobile terminal, which may be a computer, a mobile phone or other electronic devices, by means of wireless connection, the wireless connection is not limited to bluetooth connection, wireless broadband or zigbee (zigbee-be), and the like, and is not limited herein.
With further reference to fig. 2 and 3, the earphone 100 according to the present invention includes a housing 30 and a speaker unit 50, wherein an accommodating cavity 32 is formed in the housing 30, the speaker unit 50 is disposed in the accommodating cavity 32, the speaker unit 50 divides the accommodating cavity 32 into a front acoustic cavity 321 and a rear acoustic cavity (not shown), the housing 30 further forms a resonator tube 34, one end of the resonator tube 34 is communicated with the front acoustic cavity 321, and the other end is closed.
In the loudspeaker structure, the rear sound cavity mainly influences the low-frequency part of sound and has small influence on high-frequency sound; the front acoustic cavity 321 has little effect on the low frequency bands of the sound, the main effect being the high frequency part of the sound. The frequencies of sound causing user discomfort are mainly concentrated in the mid and high frequency bands, mainly related to the structure of the front sound cavity 321.
The technical scheme of the invention is that the resonant tube 34 is formed on the shell 30, one end of the resonant tube 34 is communicated with the front sound cavity 321, and the other end is set to be in a closed state. In the operation of the earphone 100, the sound from the speaker unit 50 enters the resonator tube 34 through the front sound cavity 321, and when the sound frequency reaches the natural frequency of the resonator tube 34, the resonator tube 34 resonates to eliminate the sound at the frequency, and the sound frequency near the natural frequency of the resonator tube 34 can be attenuated to some extent. According to the technical scheme of the invention, the size of the resonance tube 34 can be adjusted according to the sound frequency to be eliminated or weakened, so that the natural frequency of the resonance tube 34 is consistent with or close to the sound frequency to be eliminated or weakened, thereby achieving the effect of eliminating or weakening the sensitive sound to the human body, improving the comfort of the user in hearing, and enabling the earphone 100 to meet the use requirement of the user.
According to the equal loudness curve of human ears, the human ears are particularly sensitive to individual high-frequency points: as shown in 2k (hz), 4k (hz), and 7k (hz), the length L of the resonator tube 34 and the maximum linear dimension n of the cross section of the resonator tube 34 in the technical solution of the present invention satisfy the following ranges: l is more than or equal to 5n and less than or equal to 30n, and L is more than or equal to 10n and less than or equal to 20 n.
When the cross-section of the resonator tubes 34 is perfectly circular, the largest linear dimension n of the cross-section of the resonator tubes 34 is the diameter of the cross-section of the resonator tubes 34; when the transverse plane of the resonator tubes 34 is elliptical, the maximum linear dimension n of the cross section of the resonator tubes 34 is the longer diameter of the cross section of the resonator tubes 34; when the transverse plane of the resonator tubes 34 is rectangular, the maximum linear dimension n of the cross-section of the resonator tubes 34 is the length of the cross-section of the resonator tubes 34.
Within the above range, the resonator tubes 34 have an elongated structure, and the natural frequency of the resonator tubes 34 can be closer to the sound frequency to be eliminated, so that the earphone 100 can have a better sound quality.
Specifically, the resonator tubes 34 satisfy the following relational expression:
in the above formula MbIs the sound quality of the resonator tubes 34; cbIs the acoustic capacitance of the resonator tube 34;
sound quality M of the resonator tubes 34bThe following formula is satisfied:
where k is the coefficient, l is the length of the resonator tube 34, p0Is the density of air, SbIs the area of the cross-section of the resonator tube 34. Understandably, the sound quality M of the resonator tubes 34bPositively correlated with the length l of the resonator tube 34 and with the cross-sectional area S of the resonator tube 34bA negative correlation.
Resonant tube34 sound volume CbThe following formula is satisfied:
wherein, VbIs the volume of the resonator tube 34, c0Is the speed of sound. As can be appreciated, the acoustic capacitance C of the resonator tubes 34bVolume V of resonator tube 34bAnd (4) positively correlating.
The amount of sound attenuation TL (in dB) of the resonant muffler and the frequency z satisfy the following formula:
wherein the intermediate quantity β satisfies the following formula:
wherein, ω isrAs the angular velocity, the angular velocity satisfies the following formula:
ωr＝2πf
according to the above formula analysis, the present invention mainly adjusts three parameters of the cross-sectional area, the length and the volume of the resonator tube 34 according to the filtering effect of the resonator tube 34 formed by the housing 30, so as to reduce a specific frequency band in the frequency response.
Further, the housing 30 includes a front shell 31 and a rear shell (not shown), the front shell 31 is connected with the rear shell to form the accommodating cavity 32, and a rear sound cavity is formed between the rear shell and the speaker unit 50;
the housing 30 further includes a speaker bracket 35, the speaker bracket 35 is connected between the front housing 31 and the speaker unit 50, the speaker unit 50 and the front housing 31 are partitioned to form a front acoustic cavity 321 and a resonance tube 34, and the speaker bracket 35 is further provided with a communication hole 341 communicating the front acoustic cavity 321 and the resonance tube 34.
The outer edge of the speaker unit 50 and the inner edge of the front case 31 are provided with coupling structures to be fitted with the speaker holders 35. In the process of mounting, the structure of the loudspeaker bracket 35 is added in the process of mounting the front shell 31 and the rear shell, so that the operation is simple and convenient.
Further, referring to fig. 4 and 5, the speaker holder 35 includes a front side 351 and a rear side 353 opposite to each other, the rear side 353 faces the speaker unit 50, the front side 351 is recessed to form a first groove 3511, the first groove 3511 and the housing 30 enclose to form the resonator tube 34, the rear side 353 is recessed to form a second groove 3531, the second groove 3531 and the speaker unit 50 enclose to form the front sound cavity 321, and the speaker holder 35 is further provided with a communication hole 341 communicating the first groove 3511 and the second groove 3531.
The speaker support 35 only needs to be processed with the first groove 3511 and the second groove 3531, the first groove 3511 is matched with the housing 30 to form the resonance tube 34, and the second groove 3531 is matched with the speaker unit 50 to form the front sound cavity 321, so that the speaker support 35 is simple to process and manufacture, and the cost of the earphone 100 is low while the sound quality is improved.
A sound outlet hole 323 is formed in the shell 30, a sound outlet butt joint hole 355 is formed in the loudspeaker support 35, the sound outlet butt joint hole 355 is communicated with the front sound cavity 321 and penetrates through the front side surface 351 of the loudspeaker support 35, and the sound outlet butt joint hole 355 is communicated with the sound outlet hole 323;
one end of the first groove 3511 is adjacent to the sound outlet interface hole 355, and the other end of the first groove 3511 extends away from the sound outlet interface hole 355.
After passing through the front sound cavity 321 and the resonance tube 34, the sound emitted from the speaker unit 50 is emitted from the sound outlet interface hole 355 to the sound hole direction, and the user wears the earphone 100 according to the embodiment of the present invention on the ear, and the sound emitted from the sound outlet hole 323 can be received by the user. In this embodiment, the resonator tubes 34 extend away from the sound outlet interface holes 355, so that the resonator tubes 34 extend linearly, which is easier to machine. It will be appreciated that the resonator tubes 34 may also have a curved, extended configuration, so that the arrangement of the resonator tubes 34 makes more use of space, resulting in a more compact housing 30 as a whole.
The shape of the housing 30 in the embodiment of the present invention is adapted to the shape of the human ear, and the first groove 3511 is specifically located in the middle of the speaker bracket 35. The communication hole 341 is located at a position where the middle of the first groove 3511 is biased away from the sound outlet docking hole 355. With the structure, the length of the resonance tube 34 can meet the requirement in a limited space, and the resonance tube 34 can effectively filter the wave band which needs to be eliminated or weakened better.
Further, the speaker holder 35 is further provided with an acoustic mesh (not shown), and the acoustic mesh covers the communication hole 341. The acoustic mesh cloth can be a multi-mesh structure made of non-woven fabrics, polyvinyl chloride or metal materials. By adjusting the density of the mesh holes on the acoustic mesh cloth, the acoustic resistance can be adjusted. The density of mesh is big more on the acoustics screen cloth, and the acoustic resistance is just big more, and the air circulation resistance is big, can cut down resonance intensity, reduces the sound pressure level for the peak of shaking and the valley of shaking on the frequency response curve become gentle.
Further, the earphone 100 in the technical solution of the present invention further includes a rubber sleeve 10, and the rubber sleeve 10 is sleeved outside the casing 30 and is used for sealing between the ear canal and the casing 30, so that the earphone 100 is more comfortable to wear and is not easy to drop, and can also play a role in preventing sound from leaking.
As shown in fig. 6, the vertical axis represents the amount of sound (dB), the horizontal axis represents the frequency (Hz), the curve labeled with i is a frequency response curve without the resonator tube 34, the curve labeled with ii is a frequency response curve with the resonator tube 34, the length l of the resonator tube 34 is 15mm, the diameter of the cross section of the resonator tube 34 is 2mm, and the communication hole 341 of the resonator tube 34 is provided with the acoustic mesh cloth, the acoustic mesh cloth has an acoustic resistance value of 5 to 107Omega, the scheme corresponding to the curve marked with the second symbol can effectively reduce the high-frequency vibration peak near 5 kHz.
In practical applications, the size of the resonant tube 34 may be changed, and in the above embodiment, only at least one of the length, the width and the height of the first groove needs to be changed, so that the resonant frequency of the resonant tube 34 may be controlled, the attenuation or the enhancement of the sensitivity in a certain frequency range is realized, or the frequency point of the peak or the valley of the frequency response curve is moved, thereby adjusting the subjective timbre of the product.
The acoustic mesh fabrics on the front acoustic cavity 321, the resonant tube 34, the communication hole 341, the rear acoustic cavity and the acoustic communication hole 341 act together to influence the vibration state of the speaker unit 50, so as to form a specific acoustic frequency response, and make the product show a specific sound characteristic. Wherein, the rear shell can also be provided with a leakage hole with proper size, so that the leakage hole is communicated with the rear sound cavity and is matched with an acoustic mesh cloth with proper model for further adjusting the acoustic vibration state.
The invention also provides another structure (not shown) of the resonance tube, in which the shell comprises a front shell and a rear shell, the front shell is connected with the rear shell to form an accommodating cavity, the front sound cavity is formed between the loudspeaker single body and the front shell, the rear sound cavity is formed between the loudspeaker single body and the rear shell, and the resonance tube is connected with the front shell and is positioned on one side of the front shell, which is far away from the rear shell. In the embodiment, the structure of the loudspeaker bracket is omitted, the resonance tube can be directly and integrally formed with the front shell, and the assembly steps of the earphone are simplified.
As shown in fig. 7, the embodiment is an in-ear earphone 100, in this embodiment, the housing 30 further includes a sound outlet tube 36, the sound outlet tube 36 is connected to the front shell 31 and is located on a side of the front shell 31 away from the rear shell 33, the resonance tube 34 is adjacent to the sound outlet tube 36, and a sound outlet hole 323 is opened on a side of the sound outlet tube 36 away from the front sound cavity 321.
When the user wears the earphone 100, the ends of the resonance tube 34 and the sound emitting tube 36 away from the front sound cavity 321 are inserted into the ear holes, and the sound emitted from the speaker unit 50 passes through the front sound cavity 321, the resonance tube 34, the sound emitting tube 36 and the sound outlet. The embodiment provides a structure that the resonance tube 34 is arranged in the in-ear earphone 100, so that the in-ear earphone 100 can also eliminate certain specific frequency band sounds, thereby improving the sound quality of the earphone 100 and meeting the use requirements of users.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An earphone, comprising:
a housing formed with an accommodation chamber; and
the loudspeaker single body is arranged in the accommodating cavity and divides the accommodating cavity into a front sound cavity and a rear sound cavity;
the shell is also provided with a resonance tube, one end of the resonance tube is communicated with the front sound cavity, and the other end of the resonance tube is closed.
2. An earphone as claimed in claim 1, characterized in that the length of the resonator tube is defined as L, the largest linear dimension of the cross-section of the resonator tube is n, L and n satisfying: l is more than or equal to 5n and less than or equal to 30 n.
3. The headset of claim 2, wherein L and n satisfy: l is more than or equal to 10n and less than or equal to 20 n.
4. The earphone according to any one of claims 1 to 3, wherein the housing comprises a front shell and a rear shell, the rear shell forming the receiving cavity, the rear shell and the speaker unit forming the rear sound cavity therebetween;
the shell further comprises a loudspeaker support, the loudspeaker support is connected between the front shell and the loudspeaker single body, the loudspeaker single body and the front shell are separated to form the front sound cavity and the resonance tube, and the loudspeaker support is further provided with a communication hole for communicating the front sound cavity and the resonance tube.
5. The earphone according to claim 4, wherein the speaker frame comprises a front side and a rear side which are oppositely arranged, the rear side faces the speaker unit, the front side is recessed to form a first groove, the first groove and the housing enclose the resonator tube, the rear side is recessed to form a second groove, the second groove and the speaker unit enclose the front sound cavity, and the speaker frame is further provided with the communication hole for communicating the first groove and the second groove.
6. The earphone as claimed in claim 5, wherein the housing is provided with a sound outlet, the speaker frame is provided with a sound outlet port, the sound outlet port communicates with the front sound cavity and penetrates the front side surface of the speaker frame, and the sound outlet port communicates with the sound outlet port;
one end of the first groove is adjacent to the sound outlet butt joint hole, and the other end of the first groove extends towards the direction far away from the sound outlet butt joint hole.
7. The earphone according to claim 6 wherein the communication hole is located at a position where a middle portion of the second recess is biased away from the sound outlet docking hole.
8. The earphone according to claim 5, wherein the speaker frame is further provided with an acoustic mesh cloth covering the communication hole.
9. The earphone according to claim 1, wherein the housing comprises a front shell and a rear shell, the front shell is connected with the rear shell to form the receiving cavity, the front shell and the speaker unit enclose to form the front sound cavity, the rear shell and the speaker unit enclose to form the rear sound cavity, and the resonance tube is connected with the front shell and is located on one side of the front shell, which faces away from the rear shell.
10. The earphone of claim 9 wherein the housing further comprises a sound outlet tube connected to the front shell and located on a side of the front shell facing away from the rear shell, the resonating tube abutting the sound outlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010823360.7A CN111970596B (en) | 2020-08-19 | 2020-08-19 | Earphone set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010823360.7A CN111970596B (en) | 2020-08-19 | 2020-08-19 | Earphone set |
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| CN111970596A true CN111970596A (en) | 2020-11-20 |
| CN111970596B CN111970596B (en) | 2023-03-14 |
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| CN202010823360.7A Active CN111970596B (en) | 2020-08-19 | 2020-08-19 | Earphone set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022228306A1 (en) * | 2021-04-29 | 2022-11-03 | 维沃移动通信有限公司 | Electronic device |
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| CN110381405A (en) * | 2019-07-17 | 2019-10-25 | 歌尔科技有限公司 | A kind of earplug |
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2020
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|---|---|---|---|---|
| CN101651914A (en) * | 2005-02-04 | 2010-02-17 | 固昌通讯股份有限公司 | multi-channel earphone |
| CN103347228A (en) * | 2013-07-25 | 2013-10-09 | 中山市天键电声有限公司 | Acoustic structure for improving high-frequency resolution of in-ear headphone |
| CN206100383U (en) * | 2016-09-06 | 2017-04-12 | 歌尔科技有限公司 | An ear -worn earphone |
| CN106303808A (en) * | 2016-10-19 | 2017-01-04 | 李齐车 | A kind of resonatron superposition woofer and coaxial bugle three frequency division superposition audio amplifier |
| CN108989926A (en) * | 2017-06-01 | 2018-12-11 | 易音特电子株式会社 | For earphone, dynamic receiver with sympathetic response protector |
| CN110381405A (en) * | 2019-07-17 | 2019-10-25 | 歌尔科技有限公司 | A kind of earplug |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022228306A1 (en) * | 2021-04-29 | 2022-11-03 | 维沃移动通信有限公司 | Electronic device |
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| CN111970596B (en) | 2023-03-14 |
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