CN207995325U - Ear canal earphone microphone with micro-electromechanical microphone - Google Patents
Ear canal earphone microphone with micro-electromechanical microphone Download PDFInfo
- Publication number
- CN207995325U CN207995325U CN201721492443.2U CN201721492443U CN207995325U CN 207995325 U CN207995325 U CN 207995325U CN 201721492443 U CN201721492443 U CN 201721492443U CN 207995325 U CN207995325 U CN 207995325U
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- microphone
- ear
- micro
- electro
- canal earphones
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- 210000000613 ear canal Anatomy 0.000 title claims abstract description 41
- 239000000178 monomer Substances 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 210000003454 tympanic membrane Anatomy 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Headphones And Earphones (AREA)
Abstract
The utility model discloses a duct earphone microphone with micro-electromechanical microphone. The ear canal type earphone microphone comprises a shell, a loudspeaker single body and a micro-electromechanical microphone. The shell is provided with a cavity and a sound outlet which are communicated. The loudspeaker monomer and the micro-electro-mechanical microphone are arranged in the cavity, and the micro-electro-mechanical microphone is located between the sound outlet and the loudspeaker monomer. The utility model discloses in the duct earphone microphone, the loudspeaker monomer has airtight noise elimination function when providing the radio reception of micro-electromechanical microphone, so the utility model discloses a duct earphone microphone can completely cut off ambient noise and gain the radio reception effect of preferred.
Description
Technical field
The utility model is related to a kind of ear-canal earphones microphones, and having micro electronmechanical (Micro more particularly to one kind
Electro Mechanical System, MEMS) microphone ear-canal earphones microphone.
Background technology
As science and technology is constantly progressive, personal electric product without the trend development not towards light and handy miniaturization, smartphone,
Tablet computer or notebook computer etc., be people's daily life it is indispensable.Whether which kind of above-mentioned electronic product is
User is allowed to listen to the sound information that electronic product is provided under the situation for not interfering other people, earphone has become electronic product
Necessary accessory.Earphone can provide the preferable voice transmission of listener, and listener is enable clearly to hear and understand sound-content,
Unsharp situation can be caused unlike transmitting sound in air, and especially during user moves, such as move, opening
It is also unaffected under vehicle, strenuous activity or noisy environment.In addition, in order to use electronic product to converse, it is furnished with
The ear microphone of microphone is also common accessory.
Sound is listened in order to balance and collects two functions of sound, and conventional earphone microphone is to use earphone and microphone
The design of separation, the two are connected with each other by signal wire or simple mechanism again.In this way, earphone can be made close to ear, and make wheat
Gram wind is close to mouth.However, such design is so that microphone can also take in environmental noise simultaneously so that the sound of user
Clarity is greatly affected.To use active anti-noise, then needs configuration anti-noise circuit and cause cost increase, and active anti-noise
Also the fidelity of collected sound can be destroyed.In addition, in order to reduce the volume of ear microphone, another traditional earphone wheat
Gram elegance bluetooth communication, and earphone and microphone are arranged in same casing.However, the microphone of this design still designs
Becoming remote at a distance from mouth near one end of mouth, and because of microphone, therefore is needing the directive property using higher price
Microphone carries out radio reception.
Utility model content
The purpose of this utility model is to provide a kind of ear-canal earphones microphone, microphone receipts in the prior art can be solved
The problem that sound is ineffective and anti-noise is of high cost.
In order to achieve the above object, a kind of ear-canal earphones microphone provided by the utility model includes a shell, a loudspeaker list
Body and a micro-electro-mechanical microphone.Shell has a chamber and a sound mouth for connection.Horn single body is matched with micro-electro-mechanical microphone
It is placed in chamber, and micro-electro-mechanical microphone is between sound mouth and horn single body.
In an embodiment of the utility model, the maximum width of micro-electro-mechanical microphone is less than or equal to 6mm.
In an embodiment of the utility model, after chamber is divided into the front chamber and one to not exchange information by horn single body
Chamber, micro-electro-mechanical microphone are located at front chamber.
In an embodiment of the utility model, the diameter of horn single body is less than or equal to 6mm.
In an embodiment of the utility model, shell is divided into connected one and enters outside ear and an ear, enter ear to
It is placed in the duct of a user, horn single body is all located at micro-electro-mechanical microphone into ear.
In an embodiment of the utility model, the maximum outside diameter for entering ear is less than or equal to 8mm.
In an embodiment of the utility model, ear-canal earphones microphone further includes an air-permeable dampproof element, is configured at
Sound mouth.
In an embodiment of the utility model, micro-electro-mechanical microphone is piezoelectric microphone.
In an embodiment of the utility model, there is micro-electro-mechanical microphone a circuit board, circuit board to be parallel to loudspeaker list
Body goes out sound direction.
In an embodiment of the utility model, micro-electro-mechanical microphone also has a high-pass filtering circuit, is configured at circuit
The cutoff frequency of plate, high-pass filtering circuit is more than or equal to 300Hz.
In an embodiment of the utility model, micro-electro-mechanical microphone also has a high-pass filtering circuit, is configured at circuit
The slope of plate, high-pass filtering circuit is more than or equal to 3dB/octave.
In an embodiment of the utility model, ear-canal earphones microphone further includes a bluetooth communication unit, electrical connection
Horn single body and micro-electro-mechanical microphone, bluetooth communication unit have sound feedback suppression circuit.
Based on above-mentioned, the utility model has the advantage of, in the ear-canal earphones microphone of the utility model, loudspeaker list
Body provides closed de-noising function when micro-electro-mechanical microphone radio reception, and therefore, the ear-canal earphones microphone of the utility model can completely cut off
Environmental noise and obtain preferable radio reception effect.
For allow the utility model features described above and advantage can be clearer and more comprehensible, special embodiment below, and coordinate appended by
Attached drawing be described in detail below.
Description of the drawings
Fig. 1 is that the section of the ear-canal earphones microphone with micro-electro-mechanical microphone of an embodiment of the utility model shows
It is intended to.
Symbol description
100：Ear-canal earphones microphone
110：Shell
112：Enter ear
114：Outside ear
120：Horn single body
130：Micro-electro-mechanical microphone
132：Circuit board
134：High-pass filtering circuit
140：Air-permeable dampproof element
150：Bluetooth communication unit
160：Battery
C10：Chamber
C12：Front chamber
C14：Rear chamber
P10：Sound mouth
D10：Go out sound direction
L10：Length direction
Specific implementation mode
Fig. 1 is cutd open according to the ear-canal earphones microphone with micro-electro-mechanical microphone of the embodiment of the utility model
Face schematic diagram.Fig. 1 is please referred to, the ear-canal earphones microphone 100 with micro-electro-mechanical microphone of the present embodiment includes a shell
110, a horn single body 120 and a micro-electro-mechanical microphone 130.Shell 110 has a cavity C 10 and a sound mouth for connection
P10.Horn single body 120 is configured at cavity C 10 with micro-electro-mechanical microphone 130, and micro-electro-mechanical microphone 130 is located at sound mouth P10
Between horn single body 120.
The reason of ear-canal earphones microphone 100 of the present embodiment is referred to as duct-type is ear-canal earphones microphone 100
A part of volume can be placed into duct from auricle, and the end of duct is exactly eardrum.The average diameter of the duct of the mankind
More than 8mm, and the micro-electro-mechanical microphone 130 of the present embodiment can go deep into duct and be transmitted in duct close to eardrum with detecting
Sound wave.When ear-canal earphones microphone 100 wears the ear in user and gos deep into duct, sound mouth P10 will be faced and be connect
The eardrum of nearly ear, and horn single body 120 can hinder environmental noise to be transferred to micro-electro-mechanical microphone 130, therefore generate passive anti-
The fidelity of sound also can be improved in the effect made an uproar.Specifically, horn single body 120 prevents environmental noise from being transmitted out of shell 110
To micro-electro-mechanical microphone 130.In addition, because micro-electro-mechanical microphone 130 very close to the eardrum of user, is made when user speaks
At vibrophone caused by sound wave delicately can be detected and collected by micro-electro-mechanical microphone 130, and the bone of people also may be used
The sound that user sends out to be transferred in duct well and is collected by micro-electro-mechanical microphone 130.
In the present embodiment, the maximum width of micro-electro-mechanical microphone 130 is, for example, less than equal to 6mm, in order to go deep into duct.
Generally, micro-electro-mechanical microphone 130 may be with the appearance of elongated.The length direction L10 of micro-electro-mechanical microphone 130 is parallel to
The extending direction of duct, and the maximum value of the width vertical with length direction L10 of micro-electro-mechanical microphone 130 is, for example, less than to be equal to
6mm.In addition, the micro-electro-mechanical microphone 130 of the present embodiment can be piezoelectric microphone.In such as bias plasma capacitance-type microphone etc.
Conventional microphone in, be the capacitance variations generated by sound wave between measuring two panels diaphragm, the vibration of diaphragm can be by intermediate
The inhibition of gas pressure, and the opening being recessed is easy to allow the aqueous vapor condensed in air to attach and lead to not inductance capacitance and change.
Conversely, the micro-electro-mechanical microphone 130 of the piezoelectric type of the present embodiment mainly carries out radio reception, the table not also being recessed with single diaphragm
Face has preferable signal-to-noise ratio (SNR), and waterproof and dustproof, shock resistance are good.The ear-canal earphones microphone 100 of the present embodiment can be also
Including an air-permeable dampproof element 140, it is configured at sound mouth P10, can be entered in shell 110 to avoid moisture and foreign matter.
There is the micro-electro-mechanical microphone 130 of the present embodiment a circuit board 132, circuit board 132 to be parallel to horn single body 120
Go out sound direction D10.Therefore, the sound that horn single body 120 is sent out can pass through micro-electro-mechanical microphone 130 and reach user
Eardrum.In the present embodiment, cavity C 10 is divided into the front chamber C12 to not exchange information and a rear chamber by horn single body 120
C14, micro-electro-mechanical microphone 130 are located at front chamber C12.In other words, the part that horn single body 120 is contacted with cavity C 10 is substantial
Belong to the contact of air hermetic, therefore gas can not be transferred to front chamber C12 from rear chamber C14, also just reduce environmental noise quilt
The possibility that micro-electro-mechanical microphone 130 is collected.In addition, the ear-canal earphones microphone 100 of the present embodiment may include an ear pad (not
It is painted), it is set in outside side of the shell 110 with sound mouth P10, and sound mouth P10 is located in ear pad.Ear pad can prevent environment
Noise is transferred to micro-electro-mechanical microphone 130 outside shell 110.The horn single body 120 of the present embodiment is for example as close to microcomputer
Electric microphone 130 is formed by confined space, in turn in order to reduce between duct and ear-canal earphones microphone module 100
Improve the sensitivity of horn single body 120 and micro-electro-mechanical microphone 130.
The shell 110 of the present embodiment divides one to be connected to enter 114 outside ear 112 and an ear.Enter ear 112 to be placed in
The duct of user, and ear outside 114 is then except the duct of user.Horn single body 120 and micro-electro-mechanical microphone 130
It is all located at into ear 112.The average diameter of the duct of the mankind is more than 8mm, and the maximum outside diameter for entering ear 112 of the present embodiment is small
In equal to 8mm, the duct of user can be placed in enter ear 112.In addition, the diameter example of the horn single body 120 of the present embodiment
Such as less than it is equal to 6mm.
The ear-canal earphones microphone 100 of the present embodiment further includes a bluetooth communication unit 150, is electrically connected horn single body
120 with micro-electro-mechanical microphone 130.Being electrically connected between bluetooth communication unit 150 and horn single body 120 and micro-electro-mechanical microphone 130
It connects and may be by conducting wire and reach with circuit board, omit and be not painted in Fig. 1.Pass through bluetooth communication unit 150, this implementation
The ear-canal earphones microphone 100 of example carries out the transmission and reception of voice signal in a manner of bluetooth communication with electronic device.Meanwhile
Bluetooth communication unit 150 has sound feedback suppression circuit, may make in the voice signal that micro-electro-mechanical microphone 130 is sent
The voice signal only included from first speaker, that is, the sound that user sends out are sent out without being mixed into horn single body 120
The sound of callee.Certainly, the ear-canal earphones microphone module of the utility model can also be by the way of wired and electronics
Device carries out the transmission and reception of voice signal.This electronic device can have the function of that sound feedback as the aforementioned inhibits.In addition, ear
Battery 160 is may be configured in road formula ear microphone 100, for powering.In addition, the ear-canal earphones microphone of the present embodiment
100 can be with the circuit of built-in microphones signal compensation, or is filled by the electronics of connected mobile phone or blue-teeth communication equipment etc
Set provide microphone signal compensation software or circuit, can so solve rouse vibration of membrane 500Hz or less may be amplified with
And 2KHz or more the problem of may decaying.Specifically, micro-electro-mechanical microphone 130 can have more a high-pass filtering circuit 134,
It is configured at circuit board 132, the cutoff frequency (cut off frequency) of high-pass filtering circuit 134 is more than or equal to 300Hz, and
Its slope is more than or equal to 3dB/octave.The slope of high-pass filtering circuit 134 refers to the power gain meeting of high-pass filtering circuit 134
It varies with frequency, and the power gain variable quantity of each octave is more than or equal to 3dB.
In conclusion in the ear-canal earphones microphone of the utility model, micro-electro-mechanical microphone is located at sound mouth and loudspeaker
Between monomer.Therefore, when the ear-canal earphones microphone of the utility model is worn on the ear of user, micro-electro-mechanical microphone
Between horn single body and ear-drum, horn single body and micro-electro-mechanical microphone can common isolated environment noise and obtain preferable receipts
Audio fruit, and save the cost needed for active anti-noise.
Although the utility model has been disclosed in conjunction with above example, it is not limited to the utility model, is appointed
What those of ordinary skill in the art can make a little more without departing from the spirit and scope of the utility model
Dynamic and retouching, therefore the scope of protection of the utility model should be subject to what the appended claims were defined.
Claims (11)
1. a kind of ear-canal earphones microphone, which is characterized in that the ear-canal earphones microphone includes：
Shell has the chamber and sound mouth of connection；
Horn single body is configured at the chamber；And
Micro-electro-mechanical microphone is configured at the chamber and there is circuit board, the micro-electro-mechanical microphone to be located at the sound mouth and the loudspeaker
Between monomer, what which was parallel to the horn single body goes out sound direction.
2. ear-canal earphones microphone as described in claim 1, which is characterized in that the maximum width of the micro-electro-mechanical microphone is small
In equal to 6mm.
3. ear-canal earphones microphone as described in claim 1, which is characterized in that the chamber is divided into mutually by the horn single body
Airproof front chamber and rear chamber, the micro-electro-mechanical microphone are located at the front chamber.
4. ear-canal earphones microphone as described in claim 1, which is characterized in that the diameter of the horn single body is less than or equal to
6mm。
5. ear-canal earphones microphone as described in claim 1, which is characterized in that the shell, which is divided into, connected enters ear and ear
Outside, this enters ear to the duct for being placed in user, which is all located at this with the micro-electro-mechanical microphone and enters ear.
6. ear-canal earphones microphone as claimed in claim 5, which is characterized in that the maximum outside diameter for entering ear is less than or equal to
8mm。
7. ear-canal earphones microphone as described in claim 1, which is characterized in that the ear-canal earphones microphone further includes
The moisture-proof element of gas, is configured at the sound mouth.
8. ear-canal earphones microphone as described in claim 1, which is characterized in that the micro-electro-mechanical microphone is piezoelectric type Mike
Wind.
9. ear-canal earphones microphone as described in claim 1, which is characterized in that the micro-electro-mechanical microphone also has high pass filter
Wave circuit, is configured at the circuit board, and the cutoff frequency of the high-pass filtering circuit is more than or equal to 300Hz.
10. ear-canal earphones microphone as described in claim 1, which is characterized in that the micro-electro-mechanical microphone also has high pass
Filter circuit, is configured at the circuit board, and the slope of the high-pass filtering circuit is more than or equal to 3dB/octave.
11. ear-canal earphones microphone as described in claim 1, which is characterized in that the ear-canal earphones microphone further includes
Bluetooth communication unit is electrically connected the horn single body and the micro-electro-mechanical microphone, which inhibits with sound feedback
Circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106213984U TWM553910U (en) | 2017-09-20 | 2017-09-20 | In-ear headset having MEMS microphone |
| TW106213984 | 2017-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207995325U true CN207995325U (en) | 2018-10-19 |
Family
ID=61730327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721492443.2U Expired - Fee Related CN207995325U (en) | 2017-09-20 | 2017-11-10 | Ear canal earphone microphone with micro-electromechanical microphone |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN207995325U (en) |
| TW (1) | TWM553910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112839276A (en) * | 2019-11-22 | 2021-05-25 | 华为技术有限公司 | Microphone and loudspeaker combination module, earphone and terminal equipment |
| WO2022135176A1 (en) * | 2020-12-23 | 2022-06-30 | 华为技术有限公司 | Wireless noise-canceling headphone |
-
2017
- 2017-09-20 TW TW106213984U patent/TWM553910U/en not_active IP Right Cessation
- 2017-11-10 CN CN201721492443.2U patent/CN207995325U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112839276A (en) * | 2019-11-22 | 2021-05-25 | 华为技术有限公司 | Microphone and loudspeaker combination module, earphone and terminal equipment |
| CN112839276B (en) * | 2019-11-22 | 2022-09-09 | 华为技术有限公司 | Microphone and loudspeaker combination module, earphone and terminal equipment |
| WO2022135176A1 (en) * | 2020-12-23 | 2022-06-30 | 华为技术有限公司 | Wireless noise-canceling headphone |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM553910U (en) | 2018-01-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |