CN104954904B - A kind of earphone - Google Patents
A kind of earphone Download PDFInfo
- Publication number
- CN104954904B CN104954904B CN201510263227.XA CN201510263227A CN104954904B CN 104954904 B CN104954904 B CN 104954904B CN 201510263227 A CN201510263227 A CN 201510263227A CN 104954904 B CN104954904 B CN 104954904B
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- Prior art keywords
- piezoelectric buzzer
- moving coil
- coil receiver
- receiver
- buzzer
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- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The invention discloses a kind of earphones, including moving coil receiver and piezoelectric buzzer.Earphone of the invention has moving coil receiver and piezoelectric buzzer simultaneously, is responded by the higher frequency of piezoelectric buzzer compensation vibration system, to realize a kind of earphone of ultrabroad band of good performance.Ring piezoelectric buzzer is set in the periphery of moving coil receiver, and the two combination can regard a unit as and use, and is suitable for various sound fields and designs.Piezoelectric buzzer and moving coil receiver share identical back cavity, save the space of earphone.
Description
Technical field
The present invention relates to a kind of earphones.
Background technique
The common moving coil receiver of earphone at present, higher frequency response curve is in the case where 6k-9kHz just will appear quickly
Fall, this namely described high-frequency cut-off frequency.Due to the limitation of moving-coil receiver diaphragm materials and technique, high-frequency cut-off frequency
It is difficult to be substantially improved.
The application communicated with 4G, it is desirable that the earphone of ultrabroad band (super wideband) needs high-frequency cut-off frequency
16kHz or more can be reached, and existing this moving-coil type electroacoustic receiver has been extremely difficult to require.
If using the double unit earphones of moving-coil+moving-iron type, although can be limited to move with lift portion high-frequency audio performance
The high cost of iron phonation unit, can not be promoted and applied.
Summary of the invention
The object of the present invention is to provide a kind of new solutions of the earphone of ultrabroad band.
The present invention provides a kind of earphones, including moving coil receiver and piezoelectric buzzer.
Preferably, the piezoelectric buzzer is annular, and the piezoelectric buzzer is sheathed on the outer of the moving coil receiver
It encloses.
It preferably, further include the shell for accommodating the moving coil receiver and piezoelectric buzzer, the shell includes mutual
In conjunction with front cover and rear cover, the front cover and the moving coil receiver surround ante-chamber, the front cover be equipped be connected to it is described before
The sound channel of chamber and the piezoelectric buzzer.
It preferably, further include the shell for accommodating the moving coil receiver and piezoelectric buzzer, the shell includes mutual
In conjunction with front cover and rear cover, the rear cover and the moving coil receiver and piezoelectric buzzer surround a back cavity.
Preferably, the front cover offers moving coil receiver sound outlet hole in the position of the correspondence moving coil receiver,
Piezoelectric buzzer sound outlet hole is offered in the position of the correspondence piezoelectric buzzer.
Preferably, the rear cover offers back cavity and lets out acoustic aperture.
Preferably, the shell further includes the bassoon being connected to the back cavity.
Preferably, bass is offered on the bassoon let out acoustic aperture.
Preferably, the moving coil receiver and the piezoelectric buzzer stack or placed side by side.
Optionally, the shape of the piezoelectric buzzer is following any: circle, rectangle, annular.
It was found by the inventors of the present invention that there are no a kind of cheap and moving coil receiver knots in the prior art
The earphone of the ultrabroad band of conjunction.Therefore, the technical assignment or the technical problem to be solved is that abilities that the present invention to be realized
It is that field technique personnel never expect or it is not expected that, therefore the present invention is a kind of new technical solution.
Earphone of the invention has moving coil receiver and piezoelectric buzzer simultaneously, by piezoelectric buzzer compensation vibration system
Higher frequency response, to realize a kind of earphone of ultrabroad band of good performance, and cost is relatively low.Ring piezoelectric bee
Ring device is set in the periphery of moving coil receiver, and the two combination can regard a unit as and use, and is suitable for various sound fields and designs.Pressure
Electric buzzer and moving coil receiver share identical back cavity, save the space of earphone.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the perspective view of the explosion of earphone of the present invention.
Fig. 2 is the structural schematic diagram of earphone of the present invention.
Description of symbols
1 front cover, 2 moving coil receivers, 21 moving coil receiver sound outlet holes, 3 piezoelectric buzzers, 31 piezoelectric buzzers go out sound
Hole, 4 rear covers, 41 back cavities let out acoustic aperture, 42 back cavities, 5 bassoons, 51 basses and let out acoustic aperture.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
The present invention provides a kind of earphone, including moving coil receiver and piezoelectric buzzer, piezoelectric buzzer can be ring
Shape and surround moving coil receiver, moving coil receiver and piezoelectric buzzer share identical after cavity space.Piezoelectric buzzer is logical
Sound is reached moving coil receiver ante-chamber by the reserved sound channel for crossing earphone front cover, to compensate moving coil receiver high frequency response not
Foot.
The resonance frequency of piezoelectric buzzer can be in 1k-40kHz, and volume is all very after resonance frequency and resonance frequency
Greatly.1 is also had the advantage that simultaneously, because of no moving contact part, therefore service life length, high reliablity, continuous use are reachable
10000 hours or more, be the device of semipermanent.2, arcing or radio noise are not generated, it is noiseless to All other routes.3, no
It can cause big vibration because of loosening.4, tone color is pure, is not easy to be covered by noise.5, voltage drive, consumption electric current is small, generally
In 20mA hereinafter, not exceeding 100mA.6, big volume is minimized, volume can reach 70 decibels/20cm, and component thickness is only
1mm or less.7, operating temperature range is wide.8, it is easily installed, and without electromagnetic coil and moving-coil, it is not necessary to worry degradation of insulation, and
And it may without electric leakage.
The piezoelectric buzzer for selecting appropriate resonant frequency, allows moving coil receiver and piezoelectric buzzer to work at the same time, can be with
The high frequency response of moving-coil electricity receiver is compensated.Compensated superposition frequency response can be on 20kHz, or even arrives
40kHz has good performance.Due to leading to voltage difference of the moving-coil receiver with piezoelectric buzzer, the audio signal of the two
Separately input.
With reference to shown in Fig. 1 and 2, earphone includes front cover 1, moving coil receiver 2, piezoelectric buzzer 3, rear cover 4, bassoon 5.
Front cover 1 and rear cover 4 combine the shell for forming receiving moving coil receiver 2 and piezoelectric buzzer 3, moving coil receiver 2 and piezoelectricity
Buzzer 3 stacks inside the housing.Wherein, piezoelectric buzzer 3 is annular and the periphery for being sheathed on moving coil receiver 2.
Rear cover 4 and moving coil receiver 2 and piezoelectric buzzer 3 surround a back cavity 42, moving coil receiver 2 and piezoelectricity bee
Ring device 3 shares back cavity 42, while offering back cavity in back cavity 42 and letting out acoustic aperture 41.Front cover 1 is in the position of corresponding moving coil receiver 2
Moving coil receiver sound outlet hole 21 is offered, offers piezoelectric buzzer sound outlet hole 31 in the position of corresponding piezoelectric buzzer 3.Outside
Shell further includes the bassoon 5 being connected to back cavity 42, and bassoon 5 offers bass and lets out acoustic aperture 51.
In other embodiments, moving coil receiver and piezoelectric buzzer can also be disposed side by side in earphone.Other
In embodiment, piezoelectric buzzer can also be round or rectangle.The piezoelectric buzzer of rectangle is convenient for and the moving-coil type of rectangle electricity
Sound converting apparatus is assembled, while being also had the advantage that 1, can be effectively improved the sensitivity response of low frequency；2, it can effectively open up
The FR curve of wide intermediate frequency；3, the flatness of medium-high frequency FR curve can be effectively improved；4, it can be applied to plurality of specifications difference use
The moving-coil speaker on way；5, the audition yield of product can effectively be improved；6, can effectively improve product audition sound quality and
Improve the usage experience of consumer；7, the yield issues that can improve product, reduce cost.
Earphone of the invention has moving coil receiver and piezoelectric buzzer simultaneously, by piezoelectric buzzer compensation vibration system
Higher frequency response, to realize a kind of earphone of ultrabroad band of good performance, and cost is relatively low.Ring piezoelectric bee
Ring device is set in the periphery of moving coil receiver, and the two combination can regard a unit as and use, and is suitable for various sound fields and designs.Pressure
Electric buzzer and moving coil receiver share identical back cavity, save the space of earphone.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (7)
1. a kind of earphone, which is characterized in that including moving coil receiver (2) and piezoelectric buzzer (3)；The piezoelectric buzzer
It (3) is annular, the piezoelectric buzzer (3) is sheathed on the periphery of the moving coil receiver (2), the piezoelectric buzzer (3)
Higher frequency for compensating the moving coil receiver (2) responds；It further include accommodating the moving coil receiver (2) and piezoelectricity
The shell of buzzer (3), the shell include the front cover (1) and rear cover (4) being combined with each other, and the rear cover (4) is moved with described
Ring type receiver (2) and piezoelectric buzzer (3) surround a back cavity (42)；The front cover (1) is called in the correspondence moving-coil type
The position of device (2) offers moving coil receiver sound outlet hole (21), offers pressure in the position of the correspondence piezoelectric buzzer (3)
Electric buzzer sound outlet hole (31).
2. earphone according to claim 1, which is characterized in that further include accommodating the moving coil receiver (2) and piezoelectricity
The shell of buzzer (3), the shell include the front cover (1) and rear cover (4) being combined with each other, the front cover (1) and the moving-coil
Formula receiver (2) surrounds ante-chamber, and the front cover (1) is equipped with the sound channel of the connection ante-chamber and the piezoelectric buzzer (3).
3. earphone according to claim 1, which is characterized in that the rear cover (4) offers back cavity and lets out acoustic aperture (41).
4. earphone according to claim 1, which is characterized in that the shell further include be connected to the back cavity (4) it is low
Sound tube (5).
5. earphone according to claim 4, which is characterized in that offer bass on the bassoon (5) and let out acoustic aperture (51).
6. earphone according to claim 1, which is characterized in that the moving coil receiver (2) and the piezoelectric buzzer
(3) it stacks or placed side by side.
7. earphone according to claim 1-6, which is characterized in that under the shape of the piezoelectric buzzer (3) is
It arranges any: circle, rectangle, annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510263227.XA CN104954904B (en) | 2015-05-21 | 2015-05-21 | A kind of earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510263227.XA CN104954904B (en) | 2015-05-21 | 2015-05-21 | A kind of earphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104954904A CN104954904A (en) | 2015-09-30 |
| CN104954904B true CN104954904B (en) | 2019-05-07 |
Family
ID=54169188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510263227.XA Active CN104954904B (en) | 2015-05-21 | 2015-05-21 | A kind of earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104954904B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109714684A (en) * | 2017-10-26 | 2019-05-03 | 华一声学股份有限公司 | Point sound source loudspeaker |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102821344A (en) * | 2011-06-07 | 2012-12-12 | 精拓丽音科技（北京）有限公司 | Speaker system coupled by low and high sounds of piezoelectric materials and sound vibration device |
| CN204305300U (en) * | 2014-08-06 | 2015-04-29 | 捷音特科技股份有限公司 | Double-frequency coaxial earphone |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201682603U (en) * | 2010-05-25 | 2010-12-22 | 全南三扬电子有限公司 | Earphone |
| TW201440542A (en) * | 2013-04-03 | 2014-10-16 | Cotron Corp | Earphone |
| TWM492586U (en) * | 2014-06-18 | 2014-12-21 | Jetvox Acoustic Corp | Piezoelectric speaker |
| CN104066039A (en) * | 2014-07-10 | 2014-09-24 | 东莞达电电子有限公司 | Earplug-type moving coil and moving iron mixed earphone |
| CN204836476U (en) * | 2015-05-21 | 2015-12-02 | 歌尔声学股份有限公司 | Earphone |
-
2015
- 2015-05-21 CN CN201510263227.XA patent/CN104954904B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102821344A (en) * | 2011-06-07 | 2012-12-12 | 精拓丽音科技（北京）有限公司 | Speaker system coupled by low and high sounds of piezoelectric materials and sound vibration device |
| CN204305300U (en) * | 2014-08-06 | 2015-04-29 | 捷音特科技股份有限公司 | Double-frequency coaxial earphone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104954904A (en) | 2015-09-30 |
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Address after: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
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