CN108282733A - A kind of vibrating member and sound-producing device for sound-producing device - Google Patents
A kind of vibrating member and sound-producing device for sound-producing device Download PDFInfo
- Publication number
- CN108282733A CN108282733A CN201711394570.3A CN201711394570A CN108282733A CN 108282733 A CN108282733 A CN 108282733A CN 201711394570 A CN201711394570 A CN 201711394570A CN 108282733 A CN108282733 A CN 108282733A
- Authority
- CN
- China
- Prior art keywords
- inducing element
- vibrating member
- elastic portion
- sound
- interconnecting piece
- 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.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/10—Telephone receivers
Abstract
The invention discloses a kind of vibrating members and sound-producing device for sound-producing device, include the interconnecting piece positioned at edge, the vibration section positioned at central region, and the elastic portion between interconnecting piece and vibration section；Wherein, the first inducing element, the second inducing element are respectively arranged in the elastic portion of at least one opposite sides of the vibrating member；First inducing element, the second inducing element are configured to the electric signal of output characterization corresponding elastic portion position deformation.The vibrating member of the present invention, can not only identify polarization problem, but also can measure the amplitude of vibrating member by the inducing element in elastic portion；After it is applied to sound-producing device, the monitoring of amplitude may be implemented.By the way that sound-producing device displacement is monitored and is controlled, the performance of loud speaker can be fully played out.
Description
Technical field
The present invention relates to electroacoustic conversion arts, more particularly, to a kind of vibrating member for sound-producing device, more particularly to
It is a kind of can be with the vibrating member of detected amplitude；The invention further relates to a kind of sound-producing devices using this vibrating member.
Background technology
An important component of the loud speaker as electronic equipment, the requirement to its performance are higher and higher.Loud speaker shakes
The amplitude of dynamic system and the performance of loud speaker have direct relation, in order to meet higher performance requirement, it is necessary to loud speaker
Working condition be monitored, loud speaker is adjusted according to monitoring situation, and also to ensure the voice effect of loud speaker.
By the way that the displacement of loud speaker is monitored and is controlled, speaker performance can be fully played out.
Existing loud speaker does not have the function of amplitude detection, for example can have larger impact to pronunciation it is even more impossible to identify
Polarization problem.
Invention content
It is an object of the present invention to provide a kind of new solutions of the vibrating member for sound-producing device.
According to the first aspect of the invention, a kind of vibrating member for sound-producing device is provided, includes the company positioned at edge
Socket part, the vibration section positioned at central region, and the elastic portion between interconnecting piece and vibration section；Wherein, in the vibration
In part the first inducing element, the second inducing element are respectively arranged in the elastic portion of at least a pair of of opposite sides；First pressure
Sensing unit, the second inducing element are configured to the electric signal of output characterization corresponding elastic portion position deformation.
Optionally, first inducing element, the second inducing element are respectively piezoelectric patches, and are mounted in elastic portion.
Optionally, first inducing element, the second inducing element are respectively varistor.
Optionally, the vibrating member is vibrating diaphragm, and the elastic portion is the ring knot being arranged between interconnecting piece and vibration section
Structure.
Optionally, the vibrating member is centring disk, and the interconnecting piece is in frame shaped, the corner location point of the vibration section
It is not connected by the corner location of elastic portion and interconnecting piece.
Optionally, position of first inducing element in its elastic portion and the second inducing element are in its elastic portion
Position is corresponding.
Optionally, the centring disk is rectangle, and first inducing element, the second inducing element are arranged in fixed
In the elastic portion of heart branch piece short side direction.
Optionally, first inducing element, the second inducing element are located at the position being connect with interconnecting piece in elastic portion.
Optionally, first inducing element is provided with one or more；The quantity of second inducing element is arranged
There are one or it is multiple.
Optionally, first inducing element, parameter of second inducing element when oscillating plate is static are consistent.
Optionally, further include with the both ends of first inducing element and respectively both ends with the second inducing element respectively
The conductive part of connection, the conductive part extend to the edge of interconnecting piece from respective elastic portion and are respectively formed for external
Pad.
According to another aspect of the present invention, a kind of sound-producing device, including above-mentioned vibrating member are additionally provided.
The vibrating member of the present invention, can not only identify polarization problem, but also can by the inducing element in elastic portion
To measure the amplitude of vibrating member；After it is applied to sound-producing device, the monitoring of amplitude may be implemented.By to sound-producing device displacement into
Row is monitored and is controlled, and can fully play out by the performance of loud speaker.
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.
Description of the drawings
It is combined in the description and the attached drawing of a part for constitution instruction shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the structural schematic diagram of centring disk of the present invention.
Fig. 2 is amplitude-voltage output curve that inducing element is tested on centring disk of the present invention.
Specific implementation mode
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should be noted that：Unless in addition having
Body illustrates that 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.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention
And its application or any restrictions that use.
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, the technology, method and apparatus should be considered as part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
With reference to figure 1, the present invention provides a kind of sound-producing device, can be apply mobile phone, notebook, tablet computer,
Loud speaker in the electronic products such as music player or telephone receiver structure.This sound-producing device generally include vibrational system and
Magnetic circuit system, magnetic circuit system generally include the components such as the frame, magnet, the washer that are located in shell inner cavity.Vibrational system is usually wrapped
Include the structures such as voice coil, vibrating member.The structure and its operation principle of this sound-producing device belong to the known normal of those skilled in the art
Know, no longer illustrates herein.
It includes the interconnecting piece positioned at edge, the vibration positioned at central region that the present invention, which is applied to the vibrating member in sound-producing device,
Portion, and the elastic portion between interconnecting piece and vibration section.Vibrating member can be connected to by the interconnecting piece positioned at edge
On the shell of sound-producing device, it is located at principal vibration region of the vibration section of central region as vibrating member, elastic portion can help
In the vibration sensitivity for improving vibration section, the vibration characteristics of the improvement vibrating member.
The vibrating member of the present invention can be vibrating diaphragm, can also be centring disk.Vibrating diaphragm is that sound-producing device is indispensable heavy
Component, the vibration section of central region is wanted to be used for vibration sounding, the ring knot that elastic portion is well known to those skilled in the art
Structure, interconnecting piece, elastic portion, vibration section can be integrally formed.
Centring disk is the component for assisting diaphragm oscillations, can inhibit the polarization problem of vibrating diaphragm by the way that centring disk is arranged,
To improve the vibration performance of vibrating diaphragm, that improves sound-producing device goes out audio fruit.When installation, the interconnecting piece of centring disk can be with
It is connected on shell, the vibration section of central region can be directly bonded in the top dome of vibrating diaphragm or vibrating diaphragm, can also be bonded
Between vibrating diaphragm and voice coil.The mounting means and its operation principle of centring disk belong to the common knowledge of those skilled in the art,
It no longer illustrates herein.
In a specific embodiment of the invention, now by taking centring disk as an example, to the technical side of vibrating member of the present invention
Case is described in detail.
With reference to figure 1, centring disk includes the interconnecting piece 1 for being located at edge, positioned at the vibration section of central region 2, and is located at
Elastic portion between interconnecting piece 1 and vibration section 2.Interconnecting piece 1 can be in frame shaped, such as be rectangle framework.Vibration section 2 is located at
In the framework of interconnecting piece 1, frame shaped or platy structure that shape can be rectangle.
Elastic portion can be provided with two, be denoted as the first cantilever 3, the second cantilever 7 respectively.First cantilever 3, the second cantilever 7
The opposite both sides of centring disk are distributed in, such as are distributed on two short sides of centring disk.First cantilever 3, second cantilever 7
One end is connected to the corner location of interconnecting piece 1, and the other end extends along the short side direction of centring disk and is connected to vibration
2 corresponding corner location of portion can make 2 company of being suspended at of vibration section by the first cantilever 3, the second cantilever 7 positioned at opposite sides
In the framework of socket part 1.When vibration, the first cantilever 3, the second cantilever 7 can deform upon, so that the vibration section 2 of centring disk
It can be with vibrating diaphragm synchronous vibration.
Certainly, for a person skilled in the art, elastic portion can also be provided with four, and four of vibration section 2 turn
Angle Position is connect by four elastic portions with four corner locations of interconnecting piece 1 respectively, is no longer illustrated herein.
Wherein, the first inducing element 5, the second inducing element 9 are respectively arranged on the first cantilever 3, the second cantilever 7.The
One inducing element 5, the second inducing element 9 use the component sensitive to deformation, such as piezoelectric patches or varistor.
When the first cantilever 3, the second cantilever 7 deform upon, the first inducing element 5, the second inducing element 9 can incude the shape
Become, the first inducing element 5, the second inducing element 9 can characterize corresponding cantilever position by the circuit output of design respectively at this time
The electric signal of deformation.
Such as in a specific embodiment of the invention, the first inducing element 5, the second inducing element 9 are respectively adopted
Piezoelectric patches.When imposing physical pressure to piezoelectric patches, the electric dipole moment in piezoelectric patches can shorten because of compression, and piezoelectric patches is at this time
This variation of resistance can generate the positive and negative charge of equivalent on the opposite surface of material, and charge passes through charge amplifier, measures
After the amplification of circuit and transforming impedance, it will be converted into and be exported with the electricity of the proportional relationship of suffered external force.Pass through this
Electricity exports, and can obtain the force-bearing situation of piezoelectric patches, to speculate the deformation of cantilever, the final survey for realizing vibration section displacement
Amount.
Such as when centring disk is subjected to displacement μ with vibrating diaphragm under the driving of electromagnetic force, piezoelectric patches is equipped on centring disk
Cantilever can stress deform, and cantilever is subjected to displacement μ relative to its position being connect with interconnecting piece, cantilever design it is equivalent
Stiffness coefficient K meets generalized Hooke law, therefore the stress F on cantilever is：
F=K μ (formula 1)
Corresponding quantity of electric charge Q is also generated according to direct piezoelectric effect, on piezoelectric patches：
Q=dijF (formula 2)
Wherein, dijFor the piezoelectric modulus of piezoelectric patches.
It can be with founding mathematical models according to above-mentioned formula 1, formula 2 so that hair can be characterized with the variation of electricity consumption/voltage
The variation of acoustic device amplitude.
Therefore, two piezoelectric patches can export respectively characterization the first cantilever 3,7 deformation of the second cantilever electric signal.
When sound-producing device polarizing the problem of, the deformation extent of the cantilever of the larger side of displacement is big, on the cantilever
Piezoelectric patches then will produce larger electric current.Based on same reason, the deformation extent of the cantilever of the smaller side of displacement is small, the cantilever
On piezoelectric patches then will produce smaller electric current.When the current difference that two circuits measure is larger, you can identify at this time
Polarization state.And when speaker equalization vibrating, the electric current that two circuits detect is consistent.
Such as in one specific test of the present invention, when sound-producing device does not work, vibrating diaphragm, top dome and centring disk are equal
In static state, the piezoelectric patches on two cantilevers does not have the charge generation, the potential difference that two piezoelectric patches measure all to be at this time
0V。
When speaker operation, after centring disk is moved up with vibrating diaphragm and/or top dome, cantilever can be with the shifting of vibration section
It is dynamic and be deformed, larger stress is just will produce in the root of cantilever, when reaching peak swing, measures two piezoelectric patches
Potential difference is identical, such as is 3.85V.By the emulation to other amplitude measuring point output potentials, obtain that " amplitude-voltage is defeated
Go out " curve, with reference to figure 2.It can be seen that the amplitude situation for measuring voltage and having reflected sound-producing device well by the curve.
When sound-producing device polarizes, the stressing conditions for being furnished with two cantilevers of piezoelectric patches have difference, two piezoelectricity
The potential difference that piece measures is no longer identical, such as respectively 2.97V and 4.58V, can by the difference of the two circuit measuring voltages,
The angle for estimating polarization is come.
In one preferred embodiment of the invention, when centring disk remains stationary, the pressure on the first cantilever 3
Electric piece is consistent with the parameter of piezoelectric patches on the second cantilever 7, this, which allows for two external responses of piezoelectric patches, to be consistent,
To improve the precision of detection.
There are one piezoelectric patches on first cantilever 3, the second cantilever 7 can be respectively set；In order to improve the precision of detection, often
Piezoelectric patches on a cantilever can also be respectively set there are two, three or more.
The piezoelectric patches of the present invention can be laid on the first cantilever 3 respectively, on the second cantilever 7 by way of attachment.
Position of the piezoelectric patches on the first cantilever 3 is corresponding with position of the piezoelectric patches on the second cantilever 7.For example, piezoelectricity
Piece is distributed in the medium position or root position of respective cantilever so that and the external response of piezoelectric patches can be consistent, with
Improve the precision of detection.Piezoelectric patches is preferably provided at the position that cantilever is connect with interconnecting piece.Because being subjected to displacement in vibration section 2
When, the pressure suffered by the position is maximum, therefore can improve the electric signal output of piezoelectric patches.
When centring disk is rectangle structure, piezoelectric patches is preferably provided in the cantilever portion of short side direction, this is because
In vibration, the pressure that the cantilever portion of short side is subject to when deforming is larger, can improve the electric signal output of piezoelectric patches.
In order to draw the electric signal of two piezoelectric patches, to form measure loop, conduction is provided with also on centring disk
Portion.With reference to figure 1, the both ends of piezoelectric patches are connect with two the first conductive parts 4 respectively on the first cantilever 3, this two the first conductive parts 4
Extend on the first cantilever 3, and finally in two marginal positions of interconnecting piece 1 (Fig. 1 shows two corner locations) difference shape
It is used for the first external pad 6 at two.
Based on identical reason, the both ends of piezoelectric patches are connect with two the second conductive parts 8 respectively on the second cantilever 7, this two
The second conductive part of item 8 extends on the second cantilever 7, and finally in two marginal positions of interconnecting piece 1, (Fig. 1 shows other two
A corner location) two are respectively formed for the second external pad 10.
Four pads are respectively formed to the position at four turnings of interconnecting piece 1, this is conducive to the extraction of electric signal.The present invention
Centring disk may be used FPC plates, conductive part can also use FPC plates, this structure of centring disk and another on its surface
Row setting FPC plates belong to the common knowledge of those skilled in the art as conductive part, no longer illustrate herein.
The vibrating member of the present invention, can not only identify polarization problem, but also can by the inducing element in cantilever portion
To measure the amplitude of vibrating member；After it is applied to sound-producing device, the monitoring of amplitude may be implemented.By to sound-producing device displacement into
Row is monitored and is controlled, and can fully play out by the performance of sound-producing device.
Can both sides that only one of them is opposite in centring disk piezoelectric patches is set, when the cantilever portion of centring disk is provided with
At four, it can be respectively provided with piezoelectric patches in four cantilever portions, to realize the detection of sound-producing device entirety amplitude, and by opposite
Two piezoelectric patches of both sides can detect the problem of polarization, no longer illustrate herein.
Further, the embodiment of the present invention has passed through a kind of sound-producing device, including the vibrating member described in above-described embodiment.
It is further noted that when the inducing element of the present invention uses varistor, because itself can't be produced
Raw charge, it is therefore desirable to which the circuit of otherwise designed signal output, this belongs to the common knowledge of those skilled in the art, herein no longer
It illustrates.
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to illustrating, 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 example.This hair
Bright range is defined by the following claims.
Claims (12)
1. a kind of vibrating member for sound-producing device, it is characterised in that：Include positioned at the interconnecting piece at edge, positioned at central region
Vibration section, and the elastic portion between interconnecting piece and vibration section；Wherein, at least a pair of of opposite sides in the vibrating member
Elastic portion on be respectively arranged with the first inducing element, the second inducing element；First inducing element, the second inducing element quilt
It is configured to export the electric signal of characterization corresponding elastic portion position deformation respectively.
2. vibrating member according to claim 1, it is characterised in that：First inducing element, the second inducing element difference
For piezoelectric patches, and it is mounted in elastic portion.
3. vibrating member according to claim 1, it is characterised in that：First inducing element, the second inducing element difference
For varistor.
4. vibrating member according to claim 1, it is characterised in that：The vibrating member is vibrating diaphragm, and the elastic portion is setting
Ring structure between interconnecting piece and vibration section.
5. vibrating member according to claim 1, it is characterised in that：The vibrating member is centring disk, and the interconnecting piece is in
The corner location of frame shaped, the vibration section is connected by the corner location of elastic portion and interconnecting piece respectively.
6. vibrating member according to claim 5, it is characterised in that：Position of first inducing element in its elastic portion
It is corresponding with position of second inducing element in its elastic portion.
7. vibrating member according to claim 5, it is characterised in that：The centring disk is rectangle, first pressure sensitivity
Element, the second inducing element are arranged in the elastic portion of centring disk short side direction.
8. vibrating member according to claim 1, it is characterised in that：First inducing element, the second inducing element are located at
The position being connect with interconnecting piece in elastic portion.
9. vibrating member according to claim 1, it is characterised in that：There are one the first inducing element settings or more
It is a；The quantity of second inducing element is provided with one or more.
10. vibrating member according to claim 1, it is characterised in that：First inducing element, the second inducing element are shaking
Parameter when movable plate is static is consistent.
11. vibrating member according to claim 1, it is characterised in that：Further include two respectively with first inducing element
End and the conductive part that is connect respectively with the both ends of the second inducing element, the conductive part is from the company of extending in respective elastic portion
The edge of socket part is simultaneously respectively formed for external pad.
12. sound-producing device, it is characterised in that：Including vibrating member as described in any one of claim 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711394570.3A CN108282733B (en) | 2017-12-21 | 2017-12-21 | A kind of vibrating member and sounding device for sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711394570.3A CN108282733B (en) | 2017-12-21 | 2017-12-21 | A kind of vibrating member and sounding device for sounding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108282733A true CN108282733A (en) | 2018-07-13 |
| CN108282733B CN108282733B (en) | 2019-10-22 |
Family
ID=62801986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711394570.3A Active CN108282733B (en) | 2017-12-21 | 2017-12-21 | A kind of vibrating member and sounding device for sounding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108260067A (en) * | 2017-12-21 | 2018-07-06 | 歌尔股份有限公司 | A kind of vibrating member and sound-producing device for sound-producing device |
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| KR20130029850A (en) * | 2011-09-16 | 2013-03-26 | (주)에이엠엔티 | Eco-friendly high power micro speaker with piezo-paper |
| CN104822112A (en) * | 2015-04-22 | 2015-08-05 | 歌尔声学股份有限公司 | Speaker device |
| CN104902393A (en) * | 2015-05-21 | 2015-09-09 | 歌尔声学股份有限公司 | Electroacoustic conversion device |
| CN206620287U (en) * | 2017-01-26 | 2017-11-07 | 常州阿木奇声学科技有限公司 | The combination speaker of compact conformation |
| CN108260067A (en) * | 2017-12-21 | 2018-07-06 | 歌尔股份有限公司 | A kind of vibrating member and sound-producing device for sound-producing device |
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| KR20130029850A (en) * | 2011-09-16 | 2013-03-26 | (주)에이엠엔티 | Eco-friendly high power micro speaker with piezo-paper |
| CN104822112A (en) * | 2015-04-22 | 2015-08-05 | 歌尔声学股份有限公司 | Speaker device |
| CN104902393A (en) * | 2015-05-21 | 2015-09-09 | 歌尔声学股份有限公司 | Electroacoustic conversion device |
| CN206620287U (en) * | 2017-01-26 | 2017-11-07 | 常州阿木奇声学科技有限公司 | The combination speaker of compact conformation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108260067B (en) * | 2017-12-21 | 2019-10-22 | 歌尔股份有限公司 | A kind of vibrating member and sounding device for sounding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108282733B (en) | 2019-10-22 |
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