CN212909982U - Noise reduction earphone - Google Patents
Noise reduction earphone Download PDFInfo
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- CN212909982U CN212909982U CN202022343691.9U CN202022343691U CN212909982U CN 212909982 U CN212909982 U CN 212909982U CN 202022343691 U CN202022343691 U CN 202022343691U CN 212909982 U CN212909982 U CN 212909982U
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- earphone
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- microphone mounting
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Abstract
The utility model discloses an earphone of making an uproar falls, include: the earphone shell is internally provided with an earphone cavity and an ear canal communicated with the earphone cavity, and the tail end of the ear canal forms a sound outlet hole; an earphone electrical component disposed within the earphone cavity; comprises a loudspeaker arranged at the front end of the auditory canal; further comprising: the microphone mounting groove is formed in the earphone shell, and a sound receiving hole is formed in a notch of the microphone mounting groove; the microphone is injected in the microphone mounting groove; the dustproof net is arranged in the microphone mounting groove opposite to the sound receiving hole; the mode of moulding plastics the microphone in the microphone mounting groove that earphone casing seted up is adopted, has avoided the double faced adhesive tape to drop and mechanical fastening fixed mechanical tolerance equipment problem that leads to, avoids the microphone to get into the phenomenon emergence that the noise reduction effect is not good because fixed or sealed harmfully leads to the noise to get into the people's ear by detour the microphone, has played and has improved microphone equipment precision, simplified the equipment flow, has improved and has fallen and fall the technical effect sealed.
Description
Technical Field
The utility model belongs to the technical field of the earphone, specifically speaking relates to an earphone of making an uproar falls.
Background
The noise reduction earphone is an earphone which reduces noise by using a certain method. At present, two noise reduction earphones are respectively: active noise reduction headphones and passive noise reduction headphones; the active noise reduction function is to generate reverse sound waves equal to external noise through a noise reduction system to neutralize the noise, so that the noise reduction effect is realized. The passive noise reduction earphone mainly forms a closed space by surrounding ears, or adopts sound insulation materials such as silica gel earplugs and the like to block outside noise.
In the design of the active noise reduction earphone, the microphone is responsible for collecting an external noise signal and transmitting the external noise signal to the controller, the controller calculates the external noise signal and transmits an inverse signal with a phase difference of 180 degrees with the noise signal to the loudspeaker, and the inverse signal restored by the loudspeaker is offset with noise, so that a smaller noise environment is provided for human ears, and the hearing of the human ears and the auxiliary sleep are protected.
In the earphone design of making an uproar falls in current initiative, the microphone adopts double faced adhesive tape or machinery to step up the mode with the earphone assembly, but in actual production process, the double faced adhesive tape has the risk of droing, and machinery steps up the equipment that has assembly tolerance to lead to not to the position problem to cause the microphone to seal badly, lead to the noise to bypass the microphone and get into people's ear, finally cause the earphone noise reduction effect unsatisfactory.
Disclosure of Invention
An object of the utility model is to provide a noise reduction earphone solves the microphone that exists in the current earphone design of falling of initiative and drops or leads to the not in place technical problem of equipment with the assembly tolerance of earphone.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a noise reducing headphone is proposed, comprising: the earphone shell is internally provided with an earphone cavity and an ear canal communicated with the earphone cavity, and the tail end of the ear canal forms a sound outlet hole; an earphone electrical component disposed within the earphone cavity; comprises a loudspeaker arranged at the front end of the auditory canal; further comprising: the microphone mounting groove is formed in the earphone shell, and a sound receiving hole is formed in a notch of the microphone mounting groove; the microphone is injected in the microphone mounting groove; and the dustproof net is opposite to the sound receiving hole and is arranged in the microphone mounting groove.
Furthermore, the earphone shell is formed by assembling a front shell and a rear shell; the microphone mounting groove comprises a feedforward microphone mounting groove and is formed in the rear shell, and the sound receiving hole is formed in the outer side of the rear shell.
Further, the microphone mounting groove includes a feedback microphone mounting groove, and is arranged on the earphone shell corresponding to the ear canal part, and the sound collecting hole is located inside the earphone shell.
Further, the microphone is connected with the earphone electrical component through a lead; the lead wire is injection molded in the earphone shell.
Further, the lead line is FPCB.
Further, the lead is made of conductive adhesive.
Further, the lead is a metal conductive wire.
Furthermore, the dust screen is a mesh.
Further, the dustproof net is a waterproof film.
Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model provides an earphone of making an uproar falls, the microphone is moulded plastics in the microphone mounting groove that earphone shell seted up, has avoided the double faced adhesive tape to drop and machinery steps up the fixed mechanical tolerance equipment problem that leads to, plays and improves microphone equipment precision, simplifies the equipment flow, improves and falls and fall the technical effect who makes an uproar and seal.
Other features and advantages of the present invention will become more apparent from the following detailed description of embodiments of the invention, which is to be read in connection with the accompanying drawings.
Drawings
Fig. 1 is a structural diagram of a noise reduction earphone according to the present invention;
fig. 2 is a schematic view of the noise reduction earphone according to the present invention;
fig. 3 is a schematic diagram of the noise reduction earphone according to the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The utility model provides an earphone of making an uproar falls aims at solving the current earphone of making an uproar of falling and uses the fixed microphone of double faced adhesive tape to have the risk of droing or adopt machinery to step up the fixed microphone of mode and have assembly tolerance and lead to assembling not in place problem, avoids the microphone to get into the not good phenomenon of noise reduction effect because fixed or sealed harmfully leads to the noise to bypass the microphone and gets into the human ear and take place.
Specifically, as shown in fig. 1 to 3, the noise reduction earphone includes an earphone housing 1, an earphone electrical component (not shown), a microphone mounting groove 2 and a microphone 3; an earphone cavity 1a and an ear canal 1b communicated with the earphone cavity 1a are formed inside the earphone shell 1, and a sound outlet hole 11 is formed at the tail end of the ear canal 1 b.
The earphone electrical component is arranged in the earphone cavity 1a and comprises a loudspeaker 4 arranged at the front end of the auditory canal 1 b; the microphone mounting groove 2 is arranged on the earphone shell 1, and a sound receiving hole 5 is formed in a notch of the microphone mounting groove; the microphone 3 is injected in the microphone mounting groove 2; and a dustproof net 6 is arranged in the microphone mounting groove 2 and is opposite to the sound receiving hole 5, and the dustproof net 6 is a mesh fabric with a woven structure or a waterproof membrane with a waterproof structure.
The microphone 3 is connected with the earphone electrical component through a lead 7; a lead 7, such as a FPCB (flexible printed circuit board), a conductive adhesive, or a metal lead wire, is injection-molded in the earphone housing 1, and the end of the lead extends out of the earphone housing 1 to be connected with an earphone electrical component in the earphone cavity 1 a.
The microphone 3 collects noise and feeds back the noise to a main chip in the earphone electrical component, the main chip calculates the noise and transmits an opposite phase signal with a phase difference of 180 degrees with the noise signal to the loudspeaker 4, the opposite phase signal restored by the loudspeaker 4 is offset with the noise, and a sound signal without noise or with small noise is output to human ears through the ear canal 1 b.
Example one
As shown in fig. 1 and fig. 2, in this embodiment, the earphone housing 1 is formed by assembling a front shell 12 and a rear shell 13, a feedforward microphone mounting groove 21 is formed on the rear shell 13, a sound receiving hole 51 formed by a notch thereof is located outside the rear shell 13, a microphone 31 is used for collecting an ambient noise signal outside the earphone, the collected ambient noise signal is transmitted to an earphone main chip, the earphone main chip operates the ambient noise signal and outputs an inverse phase signal having a phase difference of 180 ° with the ambient noise signal to a speaker 4, the inverse phase signal restored by the speaker 4 offsets the ambient noise, and a sound signal having no ambient noise or less ambient noise is output to a human ear through an ear canal 1 b.
Example two
In this embodiment, on the basis of the first embodiment, as shown in fig. 3, a feedback microphone mounting groove 22 is further formed in the earphone housing 1 corresponding to the ear canal 1b, the sound collecting hole 52 is located inside the earphone housing 1, that is, inside the ear canal 1b, the microphone 32 is configured to collect noise between the speaker 4 and the ear canal 1b and feed the noise signal back to the earphone main chip, and the earphone main chip adjusts the inverted phase signal output to the speaker 4 in combination with the fed-back noise signal, so as to output a sound signal without environmental noise to the ear of a person through the ear canal 1 b.
Above-mentioned the utility model provides an earphone of making an uproar falls adopts the mode of moulding plastics the microphone in the microphone mounting groove that earphone casing offered, has avoided the double faced adhesive tape to drop and machinery steps up the fixed mechanical tolerance equipment problem that leads to, avoids the microphone to get into the not good phenomenon of noise reduction effect because fixed or sealed harmfully leads to the noise to get into the human ear and takes place, has played improvement microphone equipment precision, simplified the equipment flow, has improved to fall and sealed technological effect.
It should be noted that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the present invention.
Claims (9)
1. A noise reducing headphone comprising:
the earphone shell is internally provided with an earphone cavity and an ear canal communicated with the earphone cavity, and the tail end of the ear canal forms a sound outlet hole;
an earphone electrical component disposed within the earphone cavity; comprises a loudspeaker arranged at the front end of the auditory canal;
it is characterized by also comprising:
the microphone mounting groove is formed in the earphone shell, and a sound receiving hole is formed in a notch of the microphone mounting groove;
the microphone is injected in the microphone mounting groove;
and the dustproof net is opposite to the sound receiving hole and is arranged in the microphone mounting groove.
2. The noise reducing earphone according to claim 1, wherein the earphone housing is assembled by a front shell and a rear shell; the microphone mounting groove comprises a feedforward microphone mounting groove and is formed in the rear shell, and the sound receiving hole is formed in the outer side of the rear shell.
3. The noise reduction earphone according to claim 2, wherein the microphone mounting groove comprises a feedback microphone mounting groove opened in the earphone housing corresponding to the ear canal portion, and the sound collecting hole is located inside the earphone housing.
4. The noise reducing headset of claim 1, wherein the microphone is connected to the headset electrical assembly by a lead; the lead wire is injection molded in the earphone shell.
5. The noise reducing headset of claim 4, wherein the lead is a FPCB.
6. The noise reducing headset of claim 4, wherein the leads are conductive glue.
7. The noise reducing headset of claim 4, wherein the leads are metal conductive wires.
8. The noise reducing earphone according to claim 1, wherein the dust screen is a mesh.
9. The noise reducing headset of claim 1, wherein the dust screen is a waterproof membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022343691.9U CN212909982U (en) | 2020-10-20 | 2020-10-20 | Noise reduction earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022343691.9U CN212909982U (en) | 2020-10-20 | 2020-10-20 | Noise reduction earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212909982U true CN212909982U (en) | 2021-04-06 |
Family
ID=75260638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022343691.9U Active CN212909982U (en) | 2020-10-20 | 2020-10-20 | Noise reduction earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212909982U (en) |
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2020
- 2020-10-20 CN CN202022343691.9U patent/CN212909982U/en active Active
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