CN207166730U - A kind of noise-eliminating earphone - Google Patents
A kind of noise-eliminating earphone Download PDFInfo
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- CN207166730U CN207166730U CN201721280018.7U CN201721280018U CN207166730U CN 207166730 U CN207166730 U CN 207166730U CN 201721280018 U CN201721280018 U CN 201721280018U CN 207166730 U CN207166730 U CN 207166730U
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- sound hole
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Abstract
The utility model discloses a kind of noise-eliminating earphone, including receiver, also include casing and in shell and be provided with the microelectromechanical systems MEMS uni-directional microphones of the first sound hole and the second sound hole, wherein, the 3rd sound hole being connected with the first sound hole and the 4th sound hole being connected with the second sound hole are provided with casing.Noise-eliminating earphone of the present utility model can only pick up the sound in people's speech direction, the ambient noise in other directions is decayed, so as to reach the effect for eliminating noise, it can be seen that, earphone provided by the utility model only needs a MEMS uni-directional microphone just can realize the de-noising of noise, without extra pilot controller and special algorithm, greatly reducing needs to develop the high cost that hardware and software are brought in the prior art.In addition, the MEMS uni-directional microphones high temperature of resistance to backflow, SMT automatic chip mountings can be used, facilitates the batch production of noise-eliminating earphone, improves packaging efficiency.
Description
Technical field
Speech communication technical field is the utility model is related to, more particularly to a kind of noise-eliminating earphone.
Background technology
At present, earphone has been widely used in many fields as a kind of voice-communication device.For earphone, ear
The voice quality of machine is one of its most important performance indications, and the effect of earphone elimination noise directly influences the voice of earphone
Quality.
In order to solve influence of the ambient noise to voice quality, earphone generally use of the prior art two is all referring to wheat
Gram wind, specifically as shown in figure 1, Fig. 1 is a kind of structural representation of the earphone including dual microphone of the prior art, due to adopting
With two microphones, the earphone needs controller and corresponding algorithm to do the phase and poor sensitivity of two microphones of arrival
Denoising Processing.It can be seen that earphone of the prior art not only needs two microphones, it is also necessary to which auxiliary is with controller and special calculation
Method, hardware cost and software cost are high.
Therefore, how a kind of scheme that can solve above-mentioned technical problem is provided, is that those skilled in the art needs at present
Solve the problems, such as.
Utility model content
The purpose of this utility model is to provide a kind of noise-eliminating earphone, and earphone provided by the utility model realizes the cost of de-noising
It is low, it is applied widely；And SMT automatic chip mountings can be used, and convenient batch production, packaging efficiency height.
In order to solve the above technical problems, the utility model provides a kind of noise-eliminating earphone, including receiver, in addition to casing and
In the casing and the microelectromechanical systems MEMS uni-directional microphones of the first sound hole and the second sound hole are provided with, its
In, the 3rd sound hole being connected with first sound hole is provided with the casing and is connected with second sound hole
Four sound holes.
Preferably, first sound hole and second sound hole are arranged on the terminal plate in the MEMS uni-directional microphones
Side.
Preferably, the terminal plate is arranged far from the madial wall of the casing in the receiver direction.
Preferably, first sound hole and second sound hole are separately positioned on connecing in the MEMS uni-directional microphones
The both sides of line plate, and second sound hole is close to the internal side of shell；
Then the noise-eliminating earphone also includes with second sound hole and the close-connected sound of the 4th sound hole leading to respectively
Duct device, for providing sound channel for second sound hole and the 4th sound hole.
Preferably, the sound channel device is rubber sound channel device.
Preferably, first sound hole, second sound hole and sound source be point-blank.
Preferably, the noise-eliminating earphone is bluetooth earphone.
Preferably, the noise-eliminating earphone is headphone.
The utility model provides a kind of noise-eliminating earphone, including receiver, in addition to casing and in shell and is provided with
The microelectromechanical systems MEMS uni-directional microphones of one sound hole and the second sound hole, wherein, it is provided with casing and the first sound hole
The 3rd sound hole being connected and the 4th sound hole being connected with the second sound hole.
Noise-eliminating earphone of the present utility model to the MEMS uni-directional microphones of the sound sensitive in a direction by only realizing
Shielding to ambient noise, so that noise-eliminating earphone can only pick up the sound in people's speech direction, to other directions
Ambient noise is decayed, so as to reach the effect for eliminating noise, it is seen then that earphone provided by the utility model only needs one
MEMS uni-directional microphones just can realize the de-noising of noise, without extra pilot controller and special algorithm, greatly reduce
Need to develop the high cost that hardware and software are brought in the prior art.In addition, the frequency response of MEMS uni-directional microphones and phase
Bit integrity is preferable, goes for several scenes；And the MEMS uni-directional microphones high temperature of resistance to backflow, SMT can be used automatic
Paster, convenient batch production, improves packaging efficiency.
Brief description of the drawings
, below will be to prior art and embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of the earphone including dual microphone of the prior art；
Fig. 2 is a kind of structural representation of noise-eliminating earphone provided by the utility model；
Fig. 3 is a kind of schematic diagram of the test result of noise-eliminating earphone provided by the utility model；
Fig. 4 is a kind of concrete structure schematic diagram of the microphone of noise-eliminating earphone provided by the utility model；
Fig. 5 is the structural representation of another noise-eliminating earphone provided by the utility model；
Fig. 6 is the structural representation of another noise-eliminating earphone provided by the utility model.
Embodiment
Core of the present utility model is to provide a kind of noise-eliminating earphone, and earphone provided by the utility model realizes the cost of de-noising
It is low, it is applied widely；And SMT automatic chip mountings can be used, and convenient batch production, packaging efficiency height.
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
Refer to Fig. 2, Fig. 2 is a kind of structural representation of noise-eliminating earphone provided by the utility model, including receiver 2,
Also include casing 3 and in the casing 3 and be provided with the first sound hole 13 and the second sound hole 14 microelectromechanical systems MEMS it is mono-
Directional microphone 1, wherein, be provided with casing 3 the 3rd sound hole 31 that is connected with the first sound hole 13 and with the second sound hole 14
The 4th sound hole 32 being connected.
Specifically, receiver 2 and MEMS (Micro-Electro-Mechanical Systems, microelectromechanical systems) are single
Directional microphone 1 is respectively positioned on the inside of the casing 3 of noise-eliminating earphone, wherein, MEMS uni-directional microphones 1 are located at the length of noise-eliminating earphone
The madial wall for the casing 3 spent on direction, the first sound hole 13 and the second sound hole 14 are provided with MEMS uni-directional microphones 1, according to
Set-up mode of the MEMS uni-directional microphones 1 on the casing 3 of noise-eliminating earphone, when setting sound hole, the first sound hole 13 can be made
As far as possible away from sound source, the second sound hole 14 close proximity to sound source, so do can so that the second sound hole 14 preferably includes sound, and
First sound hole 13 can preferably eliminate sound.Certainly, in order to ensure the effect of including of sound, it is provided with casing 3 and first
The 3rd sound hole 31 that sound hole 13 is connected and the 4th sound hole 32 being connected with the second sound hole 14, it is specific as shown in Figure 2.
It should be noted that the first sound hole 13, the second sound hole 14, the 3rd sound hole 31 and the 4th sound hole 32 sound hole shape can
Think that circular, ellipse or other shapes, the utility model are not limited this.
It should also be noted that, when MEMS uni-directional microphones 1 are set in casing 3, casing 3 can be fitted in completely
Madial wall, so as to save the inner space of casing 3, naturally it is also possible to not exclusively fit in the madial wall of casing 3, specific setting side
Formula can according to circumstances depending on, the utility model does not limit herein.
Specifically, the performance of MEMS uni-directional microphones 1 at different temperatures in the utility model is all sufficiently stable, its
Sensitiveness will not be influenceed by temperature, vibration, humidity and time.In addition, just it can be realized by MEMS uni-directional microphones 1 itself
Shielding surrounding environment impacts, without extra pilot controller and special algorithm.At the same time, because heat resistance is strong,
MEMS uni-directional microphones 1 can withstand up to 260 DEG C of high temperature reflux weldering, and performance does not have any change, and therefore, MEMS is mono-
Directional microphone 1 can use SMT (Surface Mounted Technology, surface mounting technology) automatic chip mounting, favorably
In production in enormous quantities；The frequency response of MEMS uni-directional microphones 1 and phase equalization are preferable.
The function of the noise-eliminating earphone provided for checking the application, refer to Fig. 3, and Fig. 3 is provided by the utility model one
The schematic diagram of the test result of kind noise-eliminating earphone.Wherein, 0 ° of direction is Sounnd source direction, from test curve as can be seen that 0 ° of direction
Sensitivity highest, the sensitivity in 180 ° of directions is minimum, and there is different degrees of decay in other directions.That is, 0 ° of direction
For Sounnd source direction, and the sensitivity highest to sound, talked the sound in direction so noise-eliminating earphone can only pick up people, to other
The ambient noise in direction is decayed, so as to reach the effect for eliminating noise.
It can be seen that noise-eliminating earphone of the present utility model passes through only to the MEMS uni-directional microphones of the sound sensitive in a direction
The shielding to ambient noise is realized, so that noise-eliminating earphone can only pick up the sound in people's speech direction, to its other party
To ambient noise decayed, so as to reached eliminate noise effect, it is seen then that earphone provided by the utility model only needs one
Individual MEMS uni-directional microphones just can realize the de-noising of noise, without extra pilot controller and special algorithm, substantially reduce
Need to develop the high cost that hardware and software are brought in the prior art.In addition, the frequency response of MEMS uni-directional microphones and
Phase equalization is preferable, goes for several scenes；And the MEMS uni-directional microphones high temperature of resistance to backflow, SMT can be used certainly
Dynamic paster, convenient batch production, improves packaging efficiency.
On the basis of above-described embodiment：
As a kind of preferred embodiment, the first sound hole 13 and the second sound hole 14 are arranged in MEMS uni-directional microphones 1
Terminal plate 12 side.
Specifically, refer to Fig. 4, Fig. 4 is a kind of specific knot of the microphone of noise-eliminating earphone provided by the utility model
Structure schematic diagram, the MEMS uni-directional microphones 1 in the utility model specifically include microphone main body 11, terminal plate 12, the first sound
The sound hole 14 of hole 13 and second, the first sound hole 13 and the second sound hole 14 are arranged on the thickness direction of terminal plate 12, microphone master
Body 11 is fixed on terminal plate 12, and there is the inside of terminal plate 12 sound channel to cause the first sound hole 13, the second sound hole 14 and Mike
Wind main body 11 connects, and terminal plate 12 is arranged on the madial wall of casing 3, specifically as shown in figure 5, Fig. 5 is provided by the utility model
Another noise-eliminating earphone structural representation.
It is understood that when using noise-eliminating earphone structure as shown in Figure 5, now MEMS uni-directional microphones 1 are right
Headphone structure does not have too strong dependence, can save the structural members such as sound channel, gum cover, directly by MEMS uni-directional microphones
1 is attached on earphone casing, simple in construction, convenient batch production, improves packaging efficiency.
In the present embodiment, the first sound hole 13 and the second sound hole 14 are arranged on the terminal plate 12 in MEMS uni-directional microphones 1
Side, the first sound hole 13 and the second sound hole 14 can be connected with same connected mode with casing, simple in construction, facilitate cloth
Office.
As a kind of preferred embodiment, terminal plate 12 is arranged far from the madial wall of the casing 3 in the direction of receiver 2.
In the present embodiment, terminal plate 12 is arranged far from the madial wall of the casing 3 in the direction of receiver 2, can so reduce and listen
The influence of sound hole on cylinder 2 and its surrounding other device butted line plates 12, preferably include sound so as to realize and shield noise
Effect, improve voice quality.
In addition, the madial wall of casing 3 of the terminal plate 12 except that can be arranged far from the direction of receiver 2, can also be arranged on
Close to the madial wall of the casing 3 in the direction of receiver 2, the utility model does not limit herein.
As a kind of preferred embodiment, the first sound hole 13 and the second sound hole 14 are separately positioned on MEMS uni-directional microphones
The both sides of terminal plate 12 in 1, and the second sound hole 14 is close to the inner side of casing 3；
Then noise-eliminating earphone also include respectively with 32 close-connected sound channel device 4 of the second sound hole 14 and the 4th sound hole,
For providing sound channel for the second sound hole 14 and the 4th sound hole 32.
Specifically, refer to Fig. 6, Fig. 6 is the structural representation of another noise-eliminating earphone provided by the utility model, the
One sound hole 13 and the second sound hole 14 are separately positioned on the both sides of the terminal plate 12 in MEMS uni-directional microphones 1, i.e. the first sound hole
13 and second sound hole 14 opening towards on the contrary, and the first sound hole 13 close to casing 3.The 3rd to be then connected with the first sound hole 13
Sound hole 31 and the both sides that casing 3 also is located at the 4th sound hole 32 that the second sound hole 14 is connected, and in order that the second sound hole 14 with
4th sound hole 32 is connected, it is necessary to increase sound channel device 4, and sound channel device 4 is hollow structure.
Sound channel device 4 can also isolate ear in addition to providing sound channel to the second sound hole 14 and the 4th sound hole 32
The influence of sound hole on other device butted line plates 12 of machine inside, so as to improve the voice quality of noise-eliminating earphone.
As a kind of preferred embodiment, sound channel device 4 is rubber sound channel device.
Specifically, rubber sound channel device can provide required sound channel, other can also be isolated inside earphone
The influence of sound hole on device butted line plate 12, in addition, rubber sound channel device material is softer, and good airproof performance, can be with
Sound channel device 4 is brought into close contact between the madial wall of casing 3 and terminal plate 12, isolation effect is good；In addition, rubber
The manufacturing cost of sound channel device is low, and wearability is good.
As a kind of preferred embodiment, the first sound hole 13, the second sound hole 14 and sound source are point-blank.
Specifically, it can be seen from Fig. 3, the first sound hole 13, the second sound hole 14 with sound source point-blank when, environment is made an uproar
The inhibition of sound is more preferable.
As a kind of preferred embodiment, noise-eliminating earphone is bluetooth earphone.
As a kind of preferred embodiment, noise-eliminating earphone is headphone.
Specifically, noise-eliminating earphone can be bluetooth earphone, or headphone, can also be traditional wired ear
Machine, the utility model do not limit herein.Bluetooth earphone has the portability of wireless device, and using the measure of isolation, leads to
Crossing bluetooth earphone be able to may be formed that may have the electronic product of radiation and human body to separate human body so as to avoid to human body
A variety of harm, more conducively people health.Headphone sound field is good, and comfort level is good, avoid abrade duct, can use compared with
For a long time.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (8)
1. a kind of noise-eliminating earphone, including receiver, it is characterised in that also including casing and in the casing and be provided with first
The microelectromechanical systems MEMS uni-directional microphones of sound hole and the second sound hole, wherein, it is provided with the casing and described
The 3rd sound hole that one sound hole is connected and the 4th sound hole being connected with second sound hole.
2. noise-eliminating earphone according to claim 1, it is characterised in that first sound hole and second sound hole are arranged on
The side of terminal plate in the MEMS uni-directional microphones.
3. noise-eliminating earphone according to claim 2, it is characterised in that the terminal plate is arranged far from the receiver direction
The casing madial wall.
4. noise-eliminating earphone according to claim 1, it is characterised in that first sound hole and second sound hole are set respectively
The both sides of the terminal plate in the MEMS uni-directional microphones are put, and second sound hole is close to the internal side of shell；
Then the noise-eliminating earphone also includes filling with second sound hole and the close-connected sound channel of the 4th sound hole respectively
Put, for providing sound channel for second sound hole and the 4th sound hole.
5. noise-eliminating earphone according to claim 4, it is characterised in that the sound channel device fills for rubber sound channel
Put.
6. according to the noise-eliminating earphone described in claim any one of 1-5, it is characterised in that first sound hole, second sound
Hole and sound source are point-blank.
7. noise-eliminating earphone according to claim 6, it is characterised in that the noise-eliminating earphone is bluetooth earphone.
8. noise-eliminating earphone according to claim 6, it is characterised in that the noise-eliminating earphone is headphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721280018.7U CN207166730U (en) | 2017-09-30 | 2017-09-30 | A kind of noise-eliminating earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721280018.7U CN207166730U (en) | 2017-09-30 | 2017-09-30 | A kind of noise-eliminating earphone |
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| Publication Number | Publication Date |
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| CN207166730U true CN207166730U (en) | 2018-03-30 |
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| CN201721280018.7U Active CN207166730U (en) | 2017-09-30 | 2017-09-30 | A kind of noise-eliminating earphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109600692A (en) * | 2017-09-30 | 2019-04-09 | 山东共达电声股份有限公司 | A kind of noise-eliminating earphone |
-
2017
- 2017-09-30 CN CN201721280018.7U patent/CN207166730U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109600692A (en) * | 2017-09-30 | 2019-04-09 | 山东共达电声股份有限公司 | A kind of noise-eliminating earphone |
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