CN206164794U - Earphone - Google Patents
Earphone Download PDFInfo
- Publication number
- CN206164794U CN206164794U CN201621164814.XU CN201621164814U CN206164794U CN 206164794 U CN206164794 U CN 206164794U CN 201621164814 U CN201621164814 U CN 201621164814U CN 206164794 U CN206164794 U CN 206164794U
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- China
- Prior art keywords
- earphone
- coil loudspeaker
- moving
- piezoelectric speaker
- loudspeaker
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- 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.)
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Abstract
The utility model provides an earphone, including the earphone backshell to and and earphone backshell matched with earphone protecgulum, accommodated movable coil loudspeaker and piezoceramics loudspeaker in the cavity that earphone backshell and earphone protecgulum formed, wherein, the space between movable coil loudspeaker and the earphone protecgulum forms the preceding operatic tunes of movable coil loudspeaker, and the piezoceramics loudspeaker set up in the preceding operatic tunes of movable coil loudspeaker, be provided with first phonate hole and second phonate hole on the earphone protecgulum, wherein, the space between movable coil loudspeaker, piezoceramics loudspeaker and the first phonate hole forms the preceding operatic tunes play sound channel of movable coil loudspeaker, space between piezoceramics loudspeaker and the second phonate hole forms the preceding operatic tunes play sound channel of piezoceramics loudspeaker, and the ante -chamber of the preceding operatic tunes of piezoceramics loudspeaker play sound channel and movable coil loudspeaker goes out sound channel mutual independence. Through the utility model discloses the preceding operatic tunes that can avoid the piezoceramics loudspeaker switches on emergence short circuit phenomenon with the back operatic tunes each other, and then promotes earphone's tone quality.
Description
Technical field
This utility model is related to acoustic-electric switch technology field, more specifically, is related to a kind of earphone.
Background technology
Earphone is articles for daily use most common in people's life, as the portable electronics such as high-quality smart mobile phone, Pad are produced
The extensive application of product, people couple can with the requirement of the earphone of its fit applications also more and more higher, wherein, the acoustical quality of earphone is
Jing becomes an important indicator for evaluating headphone quality.
From structure, earphone generally includes the housing and the phonation unit that is contained in housing of outside, phonation unit
It is the core component of ear-phone function realization, has important impact to the performance of earphone.It is existing to improve the acoustical quality of earphone
Earphone would generally high frequency phonation unit and low frequency phonation unit be set simultaneously in housing, to take into account the low-and high-frequency sound of earphone
Go out to put effect.
Specifically, in prior art, it will usually a piezoelectric speaker is set in earphone case and one common
Moving-coil loudspeaker.Piezoelectric speaker generally includes a conducting strip and a piezoelectric ceramic piece.Piezoelectric speaker exists with moving-coil loudspeaker
With the use of when, through hole typically can be opened up on the conducting strip of piezoelectric speaker, and piezoelectric speaker is arranged on into dynamic
The front end of circle loudspeaker, the sound that moving-coil loudspeaker send reaches the ante-chamber of earphone, two loudspeaker by the through hole of piezoelectric speaker
Sharing earphone ante-chamber with go out acoustic aperture.
However, due to offering through hole on piezoelectric speaker, therefore the front sound that piezoelectric speaker separated can be caused
Chamber is interconnected with the rear operatic tunes, so as to easy sounding short circuit phenomenon, has had a strong impact on the acoustical quality of earphone.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of earphone, is made pottery with the piezoelectricity for solving existing earphone
The front operatic tunes of porcelain loudspeaker is interconnected with the rear operatic tunes, is susceptible to the problem of short circuit.
The earphone that this utility model is provided, including earphone back cover, and the earphone protecgulum being engaged with earphone back cover, in ear
Moving-coil loudspeaker and piezoelectric speaker are contained in the cavity that machine back cover is formed with earphone protecgulum；Wherein, moving-coil loudspeaker and earphone
Space between protecgulum forms the front operatic tunes of moving-coil loudspeaker, and piezoelectric speaker is arranged in the front operatic tunes of moving-coil loudspeaker；In ear
First is provided with machine protecgulum goes out acoustic aperture and second and go out acoustic aperture；Wherein, moving-coil loudspeaker, piezoelectric speaker and first go out acoustic aperture it
Between space form the front operatic tunes of moving-coil loudspeaker and speak passage；Piezoelectric speaker and the second space gone out between acoustic aperture form pressure
The front operatic tunes of electroceramics loudspeaker is spoken passage, and the front operatic tunes of piezoelectric speaker passage of speaking is spoken with the ante-chamber of moving-coil loudspeaker
Passage is separate.
Furthermore it is preferred that structure be：Be provided with earphone protecgulum and let out acoustic aperture, moving-coil loudspeaker, piezoelectric speaker with let out
Space between acoustic aperture forms to be let out before moving-coil loudspeaker let out sound passage after sound passage/piezoelectric speaker.
Furthermore it is preferred that structure be：Through hole is provided with earphone back cover, the space between moving-coil loudspeaker and through hole is formed
Sound passage is let out after moving-coil loudspeaker.
Furthermore it is preferred that structure be：First goes out acoustic aperture and second goes out acoustic aperture for circular, square or ellipsoidal structure.
Furthermore it is preferred that structure be：Space between moving-coil loudspeaker and earphone back cover forms the rear operatic tunes of moving-coil loudspeaker；It is dynamic
Space between circle loudspeaker and piezoelectric speaker forms the rear operatic tunes of piezoelectric speaker.
Furthermore it is preferred that structure be：Piezoelectric speaker includes conducting strip and the piezoelectric ceramic piece being stacked on conducting strip.
Furthermore it is preferred that structure be：Moving-coil loudspeaker include vibrational system and magnetic circuit system；Wherein, vibrational system includes shaking
Film and the voice coil loudspeaker voice coil being adhesively fixed with vibrating diaphragm；Magnetic circuit system includes Magnet, washer.
Furthermore it is preferred that structure be：In parallel mode is connected piezoelectric speaker with moving-coil loudspeaker, while receiving telecommunications
Number.
Furthermore it is preferred that structure be：Piezoelectric speaker is in parallel with moving-coil loudspeaker, and by distinguishing with reference to frequency dividing circuit
Receive the signal of telecommunication of different frequency range；Wherein, piezoelectric speaker receives high frequency electrical signal, and moving-coil loudspeaker receive low-frequency electrical signal.
Furthermore it is preferred that structure be：Sound tube is provided with earphone protecgulum, sound tube goes out acoustic aperture and second and goes out with first
Acoustic aperture connects the passage of speaking to form earphone.
Using above-mentioned according to earphone of the present utility model, by the front operatic tunes that piezoelectric speaker is arranged on moving-coil loudspeaker
It is interior, and setting two goes out acoustic aperture on earphone protecgulum, while moving-coil loudspeaker, piezoelectric speaker and one are gone out between acoustic aperture
Space speak passage as the front operatic tunes of moving-coil loudspeaker, using piezoelectric speaker and it is another go out acoustic aperture between space as pressure
The front operatic tunes of electroceramics loudspeaker is spoken passage, thus, moving-coil loudspeaker and piezoelectric speaker all have respectively independent ante-chamber with
Go out acoustic aperture, it is to avoid through hole is opened up on piezoelectric speaker, so as to avoid the front operatic tunes and the rear operatic tunes of piezoelectric speaker mutual
The phenomenon that is short-circuited is turned on, and then lifts the tonequality of earphone.
Description of the drawings
By reference to the content of the explanation below in conjunction with accompanying drawing, and with being more fully understood to of the present utility model, this
Other purposes of utility model and result will be more apparent and should be readily appreciated that.In the accompanying drawings：
Fig. 1 is the decomposition texture schematic diagram of the earphone according to this utility model embodiment；
Fig. 2 is the cross-sectional view of the earphone according to this utility model embodiment；
Fig. 3 is the combinative structure of the earphone according to this utility model embodiment.
In all of the figs identical label indicates similar or corresponding feature or function.
In figure：Earphone back cover 1, through hole 11, earphone protecgulum 2, first go out acoustic aperture 21, second go out acoustic aperture 22, let out acoustic aperture 23, go out
Sound tube 24, cavity 3, moving-coil loudspeaker 4, vibrating diaphragm 41, piezoelectric speaker 5, conducting strip 51, piezoelectric ceramic piece 52, moving-coil loudspeaker
The front operatic tunes 9 of the rear operatic tunes 7 of the operatic tunes 6, piezoelectric speaker, gum cover 8, piezoelectric speaker afterwards.
Specific embodiment
Specific embodiment of the utility model is described in detail below with reference to accompanying drawing.
For the front operatic tunes and rear operatic tunes mutual conduction of the piezoelectric speaker of aforementioned existing earphone, short circuit is susceptible to
Problem, this utility model is by the way that piezoelectric speaker is arranged in the front operatic tunes of moving-coil loudspeaker, and on earphone protecgulum
Arrange two and go out acoustic aperture, while using moving-coil loudspeaker, piezoelectric speaker and a space gone out between acoustic aperture as moving-coil loudspeaker
The front operatic tunes speak passage, using piezoelectric speaker and it is another go out acoustic aperture between space as piezoelectric speaker the front operatic tunes
Speak passage, thus, moving-coil loudspeaker and piezoelectric speaker all have respectively independent ante-chamber and go out acoustic aperture, it is to avoid in piezoelectricity pottery
Through hole is opened up on porcelain loudspeaker, so as to the front operatic tunes and rear operatic tunes mutual conduction that avoid piezoelectric speaker are short-circuited phenomenon, is entered
And lift the tonequality of earphone.
To illustrate the earphone that this utility model is provided, Fig. 1 shows the decomposition of the earphone according to this utility model embodiment
Structure, Fig. 2 shows the cross-section structure of the earphone according to this utility model embodiment, and Fig. 3 is shown according to this utility model reality
Apply the combinative structure of the earphone of example.
As shown in Figure 1 to Figure 3, the earphone that this utility model is provided includes earphone back cover 1, earphone protecgulum 2, earphone back cover 1
It is engaged to form cavity 3 with earphone protecgulum 2, in cavity 3 moving-coil loudspeaker 4 and piezoelectric speaker 5 is contained.Why will be dynamic
Circle loudspeaker and piezoelectric speaker be housed in cavity, be because the high frequency performance of moving-coil loudspeaker is typically poor, and piezoelectricity make pottery
Porcelain loudspeaker just have preferable high frequency performance again, and it can cause high-frequency cut-off frequency to be extended, from optimization earphone performance
On say, can take into account the performance of high frequency and low frequency, lift the tonequality of earphone；In addition, piezoelectric speaker itself technically with
And require relatively low in technique, can to a certain extent reduce the production cost of earphone.
Specifically, the space between moving-coil loudspeaker 4 and earphone protecgulum 2 forms the front operatic tunes of moving-coil loudspeaker, piezoelectric ceramics loudspeaker
5 be arranged in the front operatic tunes of moving-coil loudspeaker 4.To avoid moving-coil loudspeaker 4 and piezoelectric speaker 5 from sharing a front operatic tunes and go out
Acoustic aperture, first is provided with earphone protecgulum 2 goes out acoustic aperture 21 and second and go out acoustic aperture 22.Moving-coil loudspeaker 4, piezoelectric speaker 5 with
First space that go out between acoustic aperture 21 forms the front operatic tunes of moving-coil loudspeaker and speaks passage, and piezoelectric speaker 5 and second go out acoustic aperture
Space between 22 forms the front operatic tunes of piezoelectric speaker 5 and speaks passage, and the front operatic tunes of piezoelectric speaker speak it is logical
The front operatic tunes of road and moving-coil loudspeaker passage of speaking is separate.The separate front sound for referring to piezoelectric speaker herein
Chamber passage and the front operatic tunes of moving-coil loudspeaker passage of speaking of speaking is disconnected.
Wherein, first go out acoustic aperture 21, second go out acoustic aperture 22 shape can for circular, square or ellipsoidal structure,
Can be other regularly or irregularly shapes, as long as pass through can the sound that moving-coil loudspeaker and piezoelectric speaker send
Go out acoustic aperture accordingly.
Wherein, space between moving-coil loudspeaker 4 and earphone back cover 1 forms the rear operatic tunes 6 of moving-coil loudspeaker, moving-coil loudspeaker 4 with
Space between earphone fore shell 2 forms the front operatic tunes of moving-coil loudspeaker, because piezoelectric speaker is arranged on the front sound of moving-coil loudspeaker
Intracavity, thus, the space between moving-coil loudspeaker 4 and piezoelectric speaker 5 forms the rear operatic tunes 7 of piezoelectric speaker, piezoelectricity pottery
Space between porcelain loudspeaker 5 and earphone protecgulum 2 just defines the front operatic tunes 9 of piezoelectric speaker.
That is, in this utility model, because moving-coil loudspeaker have the independent front operatic tunes, therefore result in piezoelectricity pottery
Porcelain loudspeaker can not share the rear operatic tunes 6 with moving-coil loudspeaker, therefore the front operatic tunes of moving-coil loudspeaker needs to function simultaneously as piezoelectric speaker
The rear operatic tunes.
Further, it is the pressure of speaking of balance piezoelectric speaker, is additionally provided with earphone protecgulum 2 and lets out acoustic aperture 23,
Moving-coil loudspeaker 4, piezoelectric speaker 5 and the space let out between acoustic aperture 23 to form and let out sound passage after piezoelectric speaker.Meanwhile,
Because the front operatic tunes of moving-coil loudspeaker act as the rear operatic tunes of piezoelectric speaker, therefore, let out acoustic aperture 23 and also function simultaneously as moving-coil
Acoustic aperture is let out before loudspeaker.I.e.：Moving-coil loudspeaker 4, piezoelectric speaker 5 and the space let out between acoustic aperture 23 also serve as moving-coil loudspeaker
Before let out sound passage.
Additionally, the pressure of speaking to balance moving-coil loudspeaker, is additionally provided with through hole 11 on earphone back cover 1, the through hole 11 is made
To let out acoustic aperture after moving-coil loudspeaker, the space between moving-coil loudspeaker 4 and through hole 11 to form and let out sound passage after moving-coil loudspeaker, with flat
The pressure of speaking of weighing apparatus moving-coil loudspeaker.
In addition, in this utility model, moving-coil loudspeaker 4 include vibrational system and magnetic circuit system.Wherein, vibrational system includes
Vibrating diaphragm 41 and the voice coil loudspeaker voice coil being adhesively fixed with vibrating diaphragm, magnetic circuit system includes Magnet, washer etc..Moving-coil loudspeaker 4 operationally, work as voice coil loudspeaker voice coil
When receiving the signal of external circuit, the motion of the reciprocating cutting magnetic line of force can be done in the presence of electromagnetic field, so as to drive vibrating diaphragm 41
Vibration, and the sound wave that the vibration of vibrating diaphragm 41 is produced then goes out the formation of acoustic aperture 21 by moving-coil loudspeaker 4, piezoelectric speaker 5 and first
The front operatic tunes of moving-coil loudspeaker passage of speaking spreads out of.Piezoelectric speaker 5 includes conducting strip 51 and is stacked on conducting strip 51
Piezoelectric ceramic piece 52.Likewise, the sound wave that piezoelectric speaker 5 sends then goes out acoustic aperture 22 by piezoelectric speaker 5 and second
The front operatic tunes of the piezoelectric speaker of formation passage of speaking spreads out of.
Further, sound tube 24 is additionally provided with earphone protecgulum 2, the sound tube can be the lid from earphone protecgulum
The part extended, sound tube 24 goes out acoustic aperture 21 and second and goes out acoustic aperture 22 and connect to form ear of the present utility model with first
The passage of speaking of machine.That is, the front operatic tunes of moving-coil loudspeaker is spoken, passage, the front operatic tunes of piezoelectric speaker are spoken passage institute
The sound for spreading out of is radiated to the external world by sound tube.
Preferably, to make earphone of the present utility model that there is good sound insulation and leakproof audio fruit, at the end of sound tube 24
Portion is enclosed with gum cover 8.Wherein, gum cover 8 can be made using the material such as silica gel or high resiliency polyester, when using earphone
When, can be in close contact with auditory meatus after gum cover insertion auditory meatus, to completely cut off sound into middle ear and interior in ear, while may also operate as
The effect of protection ear.
In addition, in the earphone that this utility model is provided, it has following two working conditions：
First, moving-coil loudspeaker are in parallel with piezoelectric speaker, while receiving the signal of telecommunication.In this working method, moving-coil loudspeaker
Receive high frequency, low frequency signal simultaneously with piezoelectric speaker, but because piezoelectric speaker itself is with larger impedance, when
When receiving low frequency signal, piezoelectric speaker is in off working state, and so, at low frequency, moving-coil loudspeaker are in work shape
State, and its low frequency performance will not be affected by piezoelectric speaker.
2nd, moving-coil loudspeaker are in parallel with piezoelectric speaker, and parallel circuit also incorporates frequency dividing circuit, by dividing electricity
Road makes moving-coil loudspeaker and piezoelectric speaker receive the signal of telecommunication of different frequency range respectively.Specifically, piezoelectricity is made by frequency dividing circuit
Ceramic horn receives high frequency electrical signal, makes moving-coil loudspeaker receive low-frequency electrical signal, so that the performance at the low-and high-frequency of earphone is obtained
To take into account.
By above-mentioned, because piezoelectric speaker has preferable high frequency response, can preferably with moving-coil loudspeaker
Use cooperatively, thus, designer just can lay particular emphasis on LF-response, so as to open up when from design moving-coil loudspeaker with emphasis
The work bandwidth of wide whole earphone and the more preferable low-and high-frequency response of acquisition.
Describe in an illustrative manner according to earphone of the present utility model above with reference to accompanying drawing.But, people in the art
Member should be appreciated that the earphone proposed for above-mentioned this utility model, can be with the basis without departing from this utility model content
On make various improvement.Therefore, protection domain of the present utility model should be determined by the content of appending claims.
Claims (10)
1. a kind of earphone, including earphone back cover, and the earphone protecgulum being engaged with the earphone back cover, in the earphone back cover
Moving-coil loudspeaker and piezoelectric speaker are contained in the cavity formed with the earphone protecgulum；Characterized in that,
Space between the moving-coil loudspeaker and the earphone protecgulum forms the front operatic tunes of the moving-coil loudspeaker, the piezoelectric ceramics
Loudspeaker are arranged in the front operatic tunes of the moving-coil loudspeaker；
First is provided with the earphone protecgulum goes out acoustic aperture and second and go out acoustic aperture；Wherein,
The moving-coil loudspeaker, piezoelectric speaker and first space gone out between acoustic aperture form the front sound of the moving-coil loudspeaker
Chamber is spoken passage；
The front operatic tunes that the piezoelectric speaker and second space gone out between acoustic aperture form the piezoelectric speaker goes out
Sound passage, and the front operatic tunes of piezoelectric speaker passage and the ante-chamber of moving-coil loudspeaker passage of speaking of speaking is mutually only
It is vertical.
2. earphone as claimed in claim 1, it is characterised in that
It is provided with the earphone protecgulum and lets out acoustic aperture, the moving-coil loudspeaker, piezoelectric speaker and described lets out between acoustic aperture
Space forms to be let out before the moving-coil loudspeaker let out sound passage after sound passage/piezoelectric speaker.
3. earphone as claimed in claim 1, it is characterised in that
Through hole is provided with the earphone back cover, the space between the moving-coil loudspeaker and the through hole forms the moving-coil loudspeaker
After let out sound passage.
4. earphone as claimed in claim 1, it is characterised in that
Described first goes out acoustic aperture and second goes out acoustic aperture for circular, square or ellipsoidal structure.
5. earphone as claimed in claim 1, it is characterised in that
Space between the moving-coil loudspeaker and the earphone back cover forms the rear operatic tunes of the moving-coil loudspeaker；
Space between the moving-coil loudspeaker and the piezoelectric speaker forms the rear operatic tunes of the piezoelectric speaker.
6. earphone as claimed in claim 1, it is characterised in that
The piezoelectric speaker includes conducting strip and the piezoelectric ceramic piece being stacked on the conducting strip.
7. earphone as claimed in claim 1, it is characterised in that
The moving-coil loudspeaker include vibrational system and magnetic circuit system；Wherein,
The vibrational system includes vibrating diaphragm and the voice coil loudspeaker voice coil being adhesively fixed with the vibrating diaphragm；
The magnetic circuit system includes Magnet, washer.
8. earphone as claimed in claim 1, it is characterised in that
In parallel mode is connected the piezoelectric speaker with the moving-coil loudspeaker, while receiving the signal of telecommunication.
9. earphone as claimed in claim 1, it is characterised in that
The piezoelectric speaker is in parallel with the moving-coil loudspeaker, and by receiving different frequency range respectively with reference to frequency dividing circuit
The signal of telecommunication；Wherein,
The piezoelectric speaker receives high frequency electrical signal, and the moving-coil loudspeaker receive low-frequency electrical signal.
10. earphone as claimed in claim 1, it is characterised in that
It is provided with sound tube on the earphone protecgulum, the sound tube goes out acoustic aperture and second and goes out acoustic aperture and connect shape with described first
Into the passage of speaking of the earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621164814.XU CN206164794U (en) | 2016-10-25 | 2016-10-25 | Earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621164814.XU CN206164794U (en) | 2016-10-25 | 2016-10-25 | Earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206164794U true CN206164794U (en) | 2017-05-10 |
Family
ID=58654648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621164814.XU Active CN206164794U (en) | 2016-10-25 | 2016-10-25 | Earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206164794U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109525913A (en) * | 2019-01-28 | 2019-03-26 | 维沃移动通信有限公司 | A kind of Headphone structure and terminal |
| CN109997373A (en) * | 2017-09-29 | 2019-07-09 | 华为技术有限公司 | Audio component and mobile terminal |
| CN110801073A (en) * | 2019-11-13 | 2020-02-18 | 山东大学 | Multifunctional protection device suitable for tunnel construction |
| CN112788469A (en) * | 2021-03-01 | 2021-05-11 | 维沃移动通信有限公司 | Earphone and electronic equipment |
-
2016
- 2016-10-25 CN CN201621164814.XU patent/CN206164794U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109997373A (en) * | 2017-09-29 | 2019-07-09 | 华为技术有限公司 | Audio component and mobile terminal |
| CN109997373B (en) * | 2017-09-29 | 2020-08-07 | 华为技术有限公司 | Audio assembly and mobile terminal |
| US11202133B2 (en) | 2017-09-29 | 2021-12-14 | Honor Device Co., Ltd. | Audio component and mobile terminal |
| CN109525913A (en) * | 2019-01-28 | 2019-03-26 | 维沃移动通信有限公司 | A kind of Headphone structure and terminal |
| WO2020156137A1 (en) * | 2019-01-28 | 2020-08-06 | 维沃移动通信有限公司 | Earphone structure and terminal |
| CN110801073A (en) * | 2019-11-13 | 2020-02-18 | 山东大学 | Multifunctional protection device suitable for tunnel construction |
| CN112788469A (en) * | 2021-03-01 | 2021-05-11 | 维沃移动通信有限公司 | Earphone and electronic equipment |
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