CN109068228A - A kind of noise cancelling headphone - Google Patents
A kind of noise cancelling headphone Download PDFInfo
- Publication number
- CN109068228A CN109068228A CN201811271473.XA CN201811271473A CN109068228A CN 109068228 A CN109068228 A CN 109068228A CN 201811271473 A CN201811271473 A CN 201811271473A CN 109068228 A CN109068228 A CN 109068228A
- Authority
- CN
- China
- Prior art keywords
- noise cancelling
- cancelling headphone
- noise
- sealing
- sealing space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000007789 sealing Methods 0.000 claims abstract description 41
- 101001010782 Drosophila melanogaster Fez family zinc finger protein erm Proteins 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 230000035939 shock Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Classifications
-
- 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
- H04R1/1083—Reduction of ambient noise
-
- 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
Abstract
The invention discloses a kind of noise cancelling headphones, including ear muff, the front end face and ear muff of noise cancelling headphone are used to surround the sealing space of package human ear, the front end face of noise cancelling headphone is equipped with the first check valve and second one-way valve that the sealing space and noise cancelling headphone cavity or the noise cancelling headphone external world is connected, the air inlet of first check valve connects the sealing space, when the pressure of the sealing space is more than setting value, conducting is vented the sealing space, the air inlet connection noise cancelling headphone cavity or noise cancelling headphone of second one-way valve are extraneous, when the pressure of the sealing space is lower than setting value, conducting inflates the sealing space.First check valve avoids air-flow when noise cancelling headphone is subjected to impact and can not be discharged and impact the diaphragm of loudspeaker, second one-way valve then makes noise cancelling headphone Quick-return original state after impact is eliminated, since the first check valve and second one-way valve only come into force within the short time that impact occurs, not only it had maintained when noise cancelling headphone works normally and the sealing noise reduction of human ear, and but also had alleviated gas shock problem.
Description
Technical field
The present invention relates to ear phone technology field, in particular to a kind of noise cancelling headphone.
Background technique
With the improvement of the quality of life, demand of the people to sound is also higher and higher, under noisy environment, also wants there is one
Good music experience, noise cancelling headphone come into being.For passive noise cancelling headphone by ear muff, earplug etc., it is outer to completely cut off to realize sealing
Boundary's noise.However, good sealing noise reduction is necessary to each product, still, good sealing noise reduction is also implied that, when earphone by
To when impact, air at ear muff and human ear will impact loudspeaker or microphone diaphragm etc. because lacking good leakage approach,
So that noise reduction system is unstable, phenomena such as causing low-frequency resonance or high frequency to be uttered long and high-pitched sounds, the auditory perception of user is influenced.
Summary of the invention
It is sealed when being used in view of prior art noise cancelling headphone with human ear, gas shock loudspeaker when earphone being caused to be impacted
Or the problem of microphone diaphragm, a kind of noise cancelling headphone of the invention is proposed, to overcome the above problem.
To achieve the goals above, present invention employs following technical solutions:
A kind of noise cancelling headphone, including ear muff, the sealing that the front end face and ear muff of noise cancelling headphone are used to surround package human ear are empty
Between, the front end face of noise cancelling headphone is equipped with the first check valve that the sealing space and noise cancelling headphone cavity or the noise cancelling headphone external world is connected
And second one-way valve, the air inlet of the first check valve connect the sealing space, when the pressure of the sealing space is more than setting value
Conducting is vented the sealing space, and the air inlet connection noise cancelling headphone cavity or noise cancelling headphone of second one-way valve are extraneous, close at this
Conducting inflates the sealing space when pressure in envelope space is lower than setting value.
Optionally, the first check valve and second one-way valve are connected to noise cancelling headphone cavity, noise cancelling headphone cavity and noise reduction
The earphone external world is by letting out acoustic aperture connection.
Optionally, the first check valve and second one-way valve are connected directly to the noise cancelling headphone external world.
Optionally, the first check valve and second one-way valve are each provided with one, the loudspeaker two sides for noise cancelling headphone of living apart.
Optionally, noise cancelling headphone is active noise cancelling headphone, including microphone, microphone are located at front end face face loudspeaker
Before speak hole location.
Optionally, the first check valve and/or second one-way valve, the elastic element including sealing-plug and connection sealing-plug, bullet
Property element pushing tow sealing-plug to block air inlet, the contact surface of sealing-plug and air inlet is the conical surface.
Optionally, elastic element is spring, and sealing-plug corresponds to spring equipped with positioning column, and spring pocket is set on positioning column.
Optionally, noise cancelling headphone cavity is connected to the noise cancelling headphone external world by letting out acoustic aperture, the rear operatic tunes and drop of noise cancelling headphone
Earphone cavity of making an uproar connection, and then it is extraneous to be connected to noise cancelling headphone.
Optionally, the tapping of the rear operatic tunes of noise cancelling headphone is equipped with the phonocatheter of bending.
Optionally, noise cancelling headphone is head-mounted noise reduction earphone wirelessly or non-wirelessly.
In conclusion the beneficial effects of the present invention are:
The first check valve and second one-way valve with pressure regulation effect are added by the front end face in noise cancelling headphone, first is single
Avoiding air-flow when noise cancelling headphone is subjected to impact to valve can not be discharged and impact the diaphragm of loudspeaker, and second one-way valve then disappears in impact
Making noise cancelling headphone Quick-return original state after removing, the first check valve and second one-way valve only come into force within the short time that impact occurs,
Not only it had maintained when noise cancelling headphone works normally and the sealing noise reduction of human ear, but also has alleviated caused by impact that noise reduction system is unstable asks
Topic.
Detailed description of the invention
Fig. 1 is the cross-sectional view of noise cancelling headphone one embodiment of the present invention；
Fig. 2 is the first non-return valve operational schematic illustration of noise cancelling headphone of the present invention；
In figure: noise cancelling headphone 100, ear muff 110, loudspeaker 120, sealing space 130, the first check valve 140, gas outlet
141, spring 142, positioning column 143, sealing-plug 144, air inlet 145, second one-way valve 150, microphone 160, preceding acoustic aperture out
170, acoustic aperture 180, phonocatheter 190 are let out.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
In the description of the present application, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for describe the application and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in application.
Technical concept of the invention is: the first check valve and second one-way valve are added by the front end face in noise cancelling headphone,
To realize the pressure release of noise cancelling headphone Yu human ear sealing space, to alleviate gas shock problem.Wherein, the first check valve is for resisting
Pressure release is impacted, air-flow can not be discharged and impact the diaphragm of loudspeaker when noise cancelling headphone being avoided to be subjected to impact, and second one-way valve is used for
Impact is inflated after eliminating, and makes noise cancelling headphone Quick-return original state.Since the first check valve and second one-way valve only occur in impact
Short time in come into force, not only maintained when noise cancelling headphone works normally and the sealing noise reduction of human ear, but also alleviated caused by impact
Noise reduction system instability problem.
Fig. 1 shows the cross-sectional view of one embodiment of the application noise cancelling headphone 100, as shown in Figure 1, a kind of noise cancelling headphone
100, including ear muff 110, the front end face and ear muff 110 of noise cancelling headphone 100 are used to surround the sealing space 130 for wrapping up human ear, logical
Crossing the sealing space 130 may be implemented good passive noise reduction.
The front end face of noise cancelling headphone 100, which is equipped with, is connected the sealing space 130 and 100 cavity of noise cancelling headphone or noise cancelling headphone
100 extraneous the first check valves 140 and second one-way valve 150, the air inlet 145 of the first check valve 140 connect the sealing space
130, it is connected when the pressure of the sealing space 130 is more than setting value, is vented the sealing space 130, to avoid air-flow pair
The impact of 120 vibrating diaphragm of loudspeaker, to alleviate the noise that impact vibrating diaphragm generates.The air inlet 145 of second one-way valve 150 connects noise reduction
100 cavity of earphone or noise cancelling headphone 100 are extraneous, are connected when the pressure of the sealing space 130 is lower than setting value, keep the sealing empty
Between 130 inflation, enable noise cancelling headphone 100 quickly recover to normal operating condition.
By the effect of the exhaust pressure relief of above-mentioned first check valve 140 and the inflation restitution of second one-way valve 150,
The problem of air-flow inflation 120 vibrating diaphragm of loudspeaker can be effectively relieved when noise cancelling headphone 100 is impacted, avoid loudspeaker 120
Vibrating diaphragm generates unexpected noise by impact.
In the present embodiment, as shown in Figure 1, the first check valve 140 and second one-way valve 150 are connected to noise cancelling headphone 100
Cavity, 100 external world of 100 cavity of noise cancelling headphone and noise cancelling headphone are connected to by letting out acoustic aperture 180, thus, the first check valve 140 and the
Finally the vast space extraneous with noise cancelling headphone 100 be connected to two check valves 150, to noise cancelling headphone 100 it is extraneous be vented or air-breathing with
Quick dredging air-flow.Certainly, it if the cavity of noise cancelling headphone 100 plays the role of air-flow buffer enough, can also maintain to drop
It makes an uproar the sealing of 100 cavity of earphone, only relies on 100 cavity dredging flow of noise cancelling headphone.
Certainly, in the other embodiments of the application, according to 100 structure of noise cancelling headphone and the first check valve 140 and second
The valve body of the first check valve 140 and second one-way valve 150 can also be used in the type selecting of check valve 150, by 140 He of the first check valve
It is extraneous that second one-way valve 150 is connected directly to noise cancelling headphone 100.
In the present embodiment, the first check valve 140 and second one-way valve 150 are each provided with one, noise cancelling headphone 100 of living apart
120 two sides of loudspeaker.Certainly, the quantity of the first check valve 140 and second one-way valve 150 may be arranged as multiple, specifically
It is reasonably selected according to air pressure adjustment demand and the structure size of noise cancelling headphone 100.First check valve 140 and second one-way valve 150
Position be also not limited to the present embodiment one kind, as long as the valve body of check valve goes out the equal gas inlet and outlets of acoustic aperture 170 before not blocking
?.
In the present embodiment, which is active noise cancelling headphone 100, including microphone 160, the microphone 160
By acquiring ambient noise, active noise reduction is realized to provide the noise signal of reverse phase to loudspeaker 120.Active noise reduction earphone 100
It is divided into feedforward and feedback two ways, more preferable than passive noise reduction in the noise reduction effect of low-frequency range, similarly, high noise reduction also needs
Want the passive seal between ear muff 110 and human ear good, and the application passes through the first check valve 140 and second one-way valve 150
Impact air-flow elicitation effect, can alleviate air-flow well cannot reveal and impact asking for loudspeaker 120 and 160 vibrating diaphragm of microphone
Topic.
Preferably, in the present embodiment, before the microphone 160 of noise cancelling headphone 100 is located at front end face face loudspeaker 120
Out at 170 position of acoustic aperture, the environmental noise at human ear can be acquired well herein, and 140 He of the first check valve can be avoided
Gas shock when second one-way valve 150 is connected, keeps good active noise reduction effect.
Fig. 2 shows the operation principle schematic diagrams of the first check valve of the application 140, as shown in Fig. 2, the first check valve 140
Elastic element including sealing-plug 144 and connection sealing-plug 144, i.e. spring 142, the corresponding spring 142 of sealing-plug 144 are equipped with positioning
Column 143, spring 142 are sheathed on positioning column 143 and connect with sealing-plug 144.Elastic element pushing tow sealing-plug 144 is to block air inlet
Mouthfuls 145, the contact surface of sealing-plug 144 and air inlet 145 is the conical surface, and by the cone structure, air-flow can air inlet from below
Mouth 145 enters, and realizes unidirectional air guide.The structure of second one-way valve 150 can be identical as the first check valve 140, no longer superfluous herein
It states.
In the present embodiment, as shown in Figure 1, the rear operatic tunes of noise cancelling headphone 100 is connected to 100 cavity of noise cancelling headphone, thus,
The rear operatic tunes of noise cancelling headphone 100 is also connected to 100 external world of noise cancelling headphone, with the increase of the operatic tunes after realization, enhances noise cancelling headphone 100
Low frequency sound quality.
In the present embodiment, as shown in Figure 1, the tapping of the rear operatic tunes of noise cancelling headphone 100 is equipped with the phonocatheter of bending
190, further to extend acoustic transmission path, the operatic tunes after increase improves sound quality.
In the present embodiment, noise cancelling headphone 100 is head-mounted noise reduction earphone 100 wirelessly or non-wirelessly, headphone
For left and right earphone all as shown in the application Fig. 1, the headband for connecting left and right earphone provides pretightning force, clamps left and right earphone and human ear,
Realize good sealing.
In conclusion the application encloses noise cancelling headphone and human ear by adding the first check valve and second one-way valve, realization
At sealing space buffering pressure regulation effect, when noise cancelling headphone is impacted the first check valve be connected, dredge in sealing space
Air-flow, second one-way valve is connected after impact, restore the normal operating conditions of noise cancelling headphone, thus after steady air current,
It remains to play sealing noise reduction effect, does not influence the passive noise reduction of product；It is highly preferred that the application noise cancelling headphone is active noise reduction ear
Machine can alleviate impact of the air-flow to the diaphragm of loudspeaker and microphone diaphragm simultaneously, to overcome low-frequency resonance or high frequency simultaneously
The problems such as uttering long and high-pitched sounds.
The above description is merely a specific embodiment, under above-mentioned introduction of the invention, those skilled in the art
Other improvement or deformation can be carried out on the basis of the above embodiments.It will be understood by those skilled in the art that above-mentioned tool
Body description only preferably explains that the purpose of the present invention, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of noise cancelling headphone, including ear muff, the front end face of the noise cancelling headphone and the ear muff are used to surround package human ear
Sealing space, which is characterized in that
The front end face of the noise cancelling headphone, which is equipped with, is connected the first of the sealing space and noise cancelling headphone cavity or the noise cancelling headphone external world
The air inlet of check valve and second one-way valve, first check valve connects the sealing space, super in the pressure of the sealing space
Conducting is vented the sealing space when crossing setting value, the air inlet connection noise cancelling headphone cavity or noise reduction ear of the second one-way valve
Machine is extraneous, and when the pressure of the sealing space is lower than setting value, conducting inflates the sealing space.
2. noise cancelling headphone according to claim 1, which is characterized in that first check valve and the second one-way valve are equal
It is connected to noise cancelling headphone cavity, the noise cancelling headphone cavity is connected to the noise cancelling headphone external world by letting out acoustic aperture.
3. noise cancelling headphone according to claim 1, which is characterized in that first check valve and the second one-way valve are equal
It is connected directly to the noise cancelling headphone external world.
4. noise cancelling headphone according to claim 1, which is characterized in that first check valve and the second one-way valve are each
It is provided with one, the loudspeaker two sides for the noise cancelling headphone of living apart.
5. noise cancelling headphone according to claim 4, which is characterized in that the noise cancelling headphone is active noise cancelling headphone, including
Microphone, the microphone are located at before the front end face face loudspeaker hole location of speaking.
6. noise cancelling headphone according to claim 1, which is characterized in that the first check valve and/or the second one-way valve, packet
It includes sealing-plug and connects the elastic element of the sealing-plug, sealing-plug described in the elastic element pushing tow is to block air inlet, institute
The contact surface for stating sealing-plug and the air inlet is the conical surface.
7. noise cancelling headphone according to claim 6, which is characterized in that the elastic element is spring, the sealing-plug pair
The spring is answered to be equipped with positioning column, the spring pocket is set on the positioning column.
8. noise cancelling headphone according to claim 1, which is characterized in that the noise cancelling headphone cavity and the noise cancelling headphone external world are logical
It crosses and lets out acoustic aperture connection, the rear operatic tunes of the noise cancelling headphone is connected to noise cancelling headphone cavity, and then it is extraneous to be connected to noise cancelling headphone.
9. noise cancelling headphone according to claim 8, which is characterized in that the tapping of the rear operatic tunes of the noise cancelling headphone is equipped with
The phonocatheter of bending.
10. -9 described in any item noise cancelling headphones according to claim 1, which is characterized in that the noise cancelling headphone is wireless or has
The head-mounted noise reduction earphone of line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271473.XA CN109068228A (en) | 2018-10-29 | 2018-10-29 | A kind of noise cancelling headphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271473.XA CN109068228A (en) | 2018-10-29 | 2018-10-29 | A kind of noise cancelling headphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109068228A true CN109068228A (en) | 2018-12-21 |
Family
ID=64767717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811271473.XA Pending CN109068228A (en) | 2018-10-29 | 2018-10-29 | A kind of noise cancelling headphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109068228A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110213690A (en) * | 2019-06-29 | 2019-09-06 | 先歌音响（吉安）有限公司 | A kind of HIFI sound box system and reinforce the method for resetting sound effect |
| CN110351625A (en) * | 2019-07-12 | 2019-10-18 | 深圳市升弘创新科技有限公司 | A kind of physics denoising device, method and application based on gas bleeder valve |
| CN112261533A (en) * | 2020-10-10 | 2021-01-22 | 维沃移动通信有限公司 | Earphone set |
| CN112584265A (en) * | 2019-09-27 | 2021-03-30 | 华为技术有限公司 | Earphone set |
| CN112954505A (en) * | 2020-11-11 | 2021-06-11 | 汉桑（南京）科技有限公司 | Audio equipment |
| CN112954506B (en) * | 2020-11-11 | 2024-05-03 | 汉桑(南京)科技股份有限公司 | Audio equipment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110213690A (en) * | 2019-06-29 | 2019-09-06 | 先歌音响（吉安）有限公司 | A kind of HIFI sound box system and reinforce the method for resetting sound effect |
| CN110213690B (en) * | 2019-06-29 | 2020-05-15 | 先歌音响（吉安）有限公司 | HIFI sound box system and method for enhancing sound reproduction effect |
| CN110351625A (en) * | 2019-07-12 | 2019-10-18 | 深圳市升弘创新科技有限公司 | A kind of physics denoising device, method and application based on gas bleeder valve |
| CN110351625B (en) * | 2019-07-12 | 2020-10-30 | 深圳市升弘创新科技有限公司 | Physical noise reduction device and method based on air escape valve and application |
| CN112584265A (en) * | 2019-09-27 | 2021-03-30 | 华为技术有限公司 | Earphone set |
| CN112261533A (en) * | 2020-10-10 | 2021-01-22 | 维沃移动通信有限公司 | Earphone set |
| CN112954505A (en) * | 2020-11-11 | 2021-06-11 | 汉桑（南京）科技有限公司 | Audio equipment |
| CN112954506A (en) * | 2020-11-11 | 2021-06-11 | 汉桑（南京）科技有限公司 | Audio equipment |
| CN112954505B (en) * | 2020-11-11 | 2023-10-27 | 汉桑(南京)科技股份有限公司 | Audio equipment |
| CN112954506B (en) * | 2020-11-11 | 2024-05-03 | 汉桑(南京)科技股份有限公司 | Audio equipment |
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