CN206759713U - sound-producing device - Google Patents
sound-producing device Download PDFInfo
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- CN206759713U CN206759713U CN201720308513.8U CN201720308513U CN206759713U CN 206759713 U CN206759713 U CN 206759713U CN 201720308513 U CN201720308513 U CN 201720308513U CN 206759713 U CN206759713 U CN 206759713U
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- voice coil
- centring disk
- sound
- producing device
- loudspeaker voice
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Abstract
It the utility model is related to a kind of sound-producing device.The sound-producing device includes：Housing and voice coil loudspeaker voice coil, the rectangular ring-type of voice coil loudspeaker voice coil have a pair of long sides and a pair of short edges, and the voice coil loudspeaker voice coil is configured to vibrate in the housing；First centring disk and the second centring disk, first centring disk and the second centring disk have first connecting portion, bent area and coil connection, the both ends of the bent area are connected with the first connecting portion and coil connection respectively, first centring disk and the second centring disk are symmetrically distributed in the both sides of the voice coil loudspeaker voice coil, the first connecting portion is connected with the housing, and the coil connection is connected with the short side of the voice coil loudspeaker voice coil；The thickness of first centring disk and the second centring disk is different, is configured to the pliable asymmetry of vibration for making the voice coil loudspeaker voice coil overall.A technical problem to be solved in the utility model is vibrating diaphragm polarization problem caused by the asymmetric operatic tunes in sound-producing device module.
Description
Technical field
The utility model belongs to electroacoustic transduction technical field, specifically, the utility model is related to a kind of sound-producing device.
Background technology
Sound-producing device is the Electroacooustic power conversion device commonly used in Modern consumer electronics product, for converting the electrical signal to sound
Sound.Under the fast-developing technological trend of consumer electronics product, the performance of sound-producing device is also gradually developing, and adapts to electronics production
The update of product.
Vibrating diaphragm and voice coil loudspeaker voice coil in traditional sound-producing device are usually symmetrical expression design, and shape is based on rectangle, circle.With rectangle
Structure identical centring disk, in the case where not considering cavity body structure, centring disk energy are provided with exemplified by voice coil loudspeaker voice coil, around voice coil loudspeaker voice coil
It is enough to vibrating diaphragm provide balance vibration is pliable and rigid compensation, speaker system is reached whole machine balancing state.
But because the electronic products such as mobile phone, tablet personal computer constantly pursue lightening design so that sound-producing device module
Structure also increasingly complex and variation.So new sound-producing device module polygamy is equipped with baroque back cavity with before
Chamber.This chamber structure shows certain asymmetry.In this case, the sound system of sound-producing device module itself is in
Asymmetry, it is possible to cause vibrating diaphragm polarization phenomena occur.The polarization phenomena of vibrating diaphragm can make voice coil loudspeaker voice coil wiping occur to touch magnetic circuit, loose wire etc.
A series of problems, even if voice coil loudspeaker voice coil will not be damaged, problem is touched in wiping can also produce noise, reduce the acoustical behavior of sound-producing device, make it
Reliability reduces.
In order to solve the above technical problems, the mode of those skilled in the art's generally use has：In back cavity, acoustical cotton is set；Or
Person, add on vibrating diaphragm and apply damping glue etc..But the improvement of these modes is limited.It is therefore necessary to the sound system to sound-producing device
Or parts are improved, improve due to vibrating diaphragm polarization problem caused by the asymmetry of the operatic tunes.
Utility model content
A purpose of the present utility model is to provide a kind of improved sound-producing device.
According to one side of the present utility model, there is provided a kind of sound-producing device, including voice coil loudspeaker voice coil and located at voice coil loudspeaker voice coil bottom
Centring disk, the centring disk includes symmetrically arranged first centring disk and the second centring disk, first centering
Branch piece is different with the thickness of the second centring disk, is configured to the pliable asymmetry of vibration for making the voice coil loudspeaker voice coil overall.
Alternatively, in addition to housing, the voice coil loudspeaker voice coil have a pair of long sides and a pair of short edges, and the voice coil loudspeaker voice coil is configured in institute
State in housing and vibrate；
First centring disk and the second centring disk have first connecting portion, bent area and coil connection, described
The both ends of bent area are connected with the first connecting portion and coil connection respectively, first centring disk and the second centering branch
Piece is symmetrically distributed in the both sides of the voice coil loudspeaker voice coil, and the first connecting portion is fixed in the housing, the coil connection with
The short side connection of the voice coil loudspeaker voice coil.
Alternatively, three times of the thickness of first centring disk less than or equal to the thickness of the second centring disk；
The thickness of first centring disk is more than or equal to 1/3rd of the thickness of the second centring disk.
Alternatively, the thickness of first centring disk is the half of the thickness of the second centring disk.
Alternatively, there is connected unit, the first connecting portion is connected in the connected unit in the side wall of the housing.
Alternatively, there is difference in height, first centring disk and institute between the first connecting portion and coil connection
The difference in height for stating the second centring disk is different.
Alternatively, length of the bent area of first centring disk along the long side and second centring disk is curved
Length of the folding area along the long side is different.
Alternatively, width of first centring disk along the short side and second centring disk are along the short side
Width is different.
One of the present utility model has technical effect that, the pliable asymmetry of vibration of the generating means monomer.It is this to shake
Film can adapt to the asymmetric sound-producing device module of chamber structure, avoid polarization problem.
It is of the present utility model other by referring to the drawings to the detailed description of exemplary embodiment of the present utility model
Feature and its advantage will be made apparent from.
Brief description of the drawings
The accompanying drawing of a part for constitution instruction describes embodiment of the present utility model, and uses together with the description
In explanation principle of the present utility model.
Fig. 1 is the internal structure schematic top plan view of sound-producing device provided by the utility model；
Fig. 2 is the structural representation of centring disk of the present utility model；
Fig. 3 is the side sectional view of the sound-producing device in a kind of embodiment of the utility model；
Fig. 4 is the side sectional view of the sound-producing device in the utility model another embodiment；
Fig. 5 is the side sectional view of the sound-producing device in the utility model another embodiment；
Fig. 6 is the internal structure schematic top plan view of the sound-producing device in the utility model another embodiment.
Embodiment
Various exemplary embodiments of the present utility model are described in detail now with reference to accompanying drawing.It should be noted that：It is unless another
Illustrate outside, the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.
It may be not discussed in detail for technology and equipment known to person of ordinary skill in the relevant, but in appropriate situation
Under, the technology and equipment should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
The utility model provides a kind of sound-producing device, and the sound-producing device includes voice coil loudspeaker voice coil and determined located at voice coil loudspeaker voice coil bottom
Heart branch piece, the centring disk include symmetrically arranged first centring disk and the second centring disk.Especially, described first is fixed
Heart branch piece is different with the thickness of the second centring disk, so as to which the supporting force applied to the both sides of voice coil loudspeaker voice coil is different, makes the sound
It is pliable and rigid asymmetric to enclose overall vibration.Correspondingly, coordinate the asymmetric sound-producing device module of acoustical cavity, hair can be made
Acoustic device system reaches the state of vibration balancing again.The problem of avoiding vibrating diaphragm from being polarized when working.
The sound-producing device can also include housing.As shown in figure 1, the housing 10 is determined for carrying the voice coil loudspeaker voice coil and first
Heart branch piece 201, the second centring disk 202.The voice coil loudspeaker voice coil can be with rectangular cyclic structure, or in racetrack structure.Voice coil loudspeaker voice coil has
There are a pair of long sides 11 and a pair of short edges 12.The voice coil loudspeaker voice coil is configured to vibrate in the housing 10.It can connect on the upside of voice coil loudspeaker voice coil
It is connected to vibrating diaphragm, diaphragm oscillations can be driven during voice coil vibrations, make diaphragm oscillations sounding.There can also be magnetic circuit system in sound-producing device
System, the magnetic circuit system are configured to that voice coil vibrations can be driven when being passed through voice signal in voice coil loudspeaker voice coil.For magnetic circuit system and shake
The design of film, the utility model are limited not to this, are configured according to actual product.In addition, the present invention is not yet
Long side and short side must be had by limiting the voice coil loudspeaker voice coil, for square or other shapes of vibrating diaphragm, can also use physical dimension
Different symmetrical centring disks, which is realized, vibrates pliable asymmetric effect.
As shown in Figure 1, 2, the centring disk 202 of the first centring disk 201 and second has first connecting portion 21, bending
Area 22 and coil connection 23.The first connecting portion 21 is used to be fixed in the housing 10.First connecting portion 21 can be straight
Connect on the housing 10, can also be connected on magnetic circuit system in succession, be indirectly fixed in housing 10, the utility model enters not to this
Row limitation.The coil connection 23 is then connected with the short side 12 of the voice coil loudspeaker voice coil.The both ends of the bent area 22 respectively with it is described
First connecting portion 21 and coil connection 23 connect, as shown in Figure 2.When the voice coil loudspeaker voice coil up-down vibration, the coil connection
23 together vibrate, and the bent area 22 then provides support and elastic recovery effect for voice coil loudspeaker voice coil and coil connection 23.Described first
Connecting portion 21 is fixed, plays the effect of being fixedly connected.The thickness of the centring disk 202 of first centring disk 201 and second
Difference, so as to which the supporting force applied to two short sides 12 of voice coil loudspeaker voice coil is different, make the overall vibration of the voice coil loudspeaker voice coil pliable and firm
Property it is asymmetric.
For example, by taking the sound-producing device shown in Fig. 3 as an example, the second centring disk of thickness ratio 202 of the first centring disk 201
Thickness of thin, so that the pliable asymmetry of vibration of two short sides 12 of voice coil loudspeaker voice coil.This sound-producing device adapts to the operatic tunes can be in voice coil loudspeaker voice coil
Short side both sides produce the sound-producing device module of unbalanced air pressure.When sound-producing device module works, first, second centering branch
The difference in thickness of piece can balance the asymmetric phenomenon of air pressure of the operatic tunes, so that voice coil loudspeaker voice coil returns to the state of balance vibration.Enter
One step, the polarization of voice coil loudspeaker voice coil can also be eliminated, wipe the problems such as touching, improve the acoustical behavior of sound-producing device.Avoid voice coil loudspeaker voice coil because
To wipe the problems such as touching possible caused broken string, loose wire.
The utility model provides the thickness proportion scope of first centring disk and the second centring disk.Alternatively,
In the case where first centring disk is thicker, the thickness of first centring disk is less than or equal to the second centring disk
Three times of thickness；In the case of the thinner thickness of first centring disk, the thickness of first centring disk be more than or
Equal to 1/3rd of the thickness of the second centring disk.In the range of above-mentioned thickness proportion, it on the one hand can make two centering branch
A certain degree of rigid difference is produced between piece, on the other hand can avoid causing sound-producing device because rigid difference is excessive can
Reduced by property.Provided by the utility model is preferable proportion, is not intended to limit two centring disks and has to comply with above-mentioned ratio
Example relation.
Preferably, in the embodiment shown in Fig. 3, the thickness of first centring disk 201 is the second centring disk
The half of 202 thickness.The rigidity of first centring disk 201 is smaller, and bigger shake can be produced when by active force
Dynamic amplitude.The side short side 12 that voice coil loudspeaker voice coil is connected with the first centring disk 201 can produce bigger Oscillation Amplitude, with asymmetry
Sound-producing device module the operatic tunes caused by air pressure offset.
Except being regulated and controled on the thickness of centring disk, the vibration that makes voice coil loudspeaker voice coil overall it is pliable it is asymmetric beyond, can be with
The other structures of centring disk are adjusted, makes the rigidity of two centring disks and vibrates pliable difference.
In one embodiment, as shown in figure 4, the first connecting portion 21 of centring disk and coil connection 23 are not located at
In approximately the same plane.When first, second centring disk is arranged in sound-producing device, the first connecting portion 21 connects with voice coil loudspeaker voice coil
Height where portion 23 is different.There is difference in height between first connecting portion 21 and coil connection 23.Especially, the first centering branch
The difference in height of piece 201 is different from the difference in height of the second centring disk 202.As shown in figure 4, the first centring disk 201
The difference in height be H1, the difference in height of the second centring disk 202 is H2, and H2 is more than H1.In this embodiment, first
The height difference H 1 of centring disk 201 is smaller, and rigidity is stronger, enables Oscillation Amplitude caused by the side that voice coil loudspeaker voice coil is attached thereto smaller.
The height difference H 2 of second centring disk 202 is larger, and rigidity is weaker, enable Oscillation Amplitude caused by the side that voice coil loudspeaker voice coil is attached thereto compared with
Greatly.So, the overall pliable asymmetry of vibration of voice coil loudspeaker voice coil can be made, to adapt to the asymmetric sound-producing device module of the operatic tunes.
In another embodiment, as shown in figure 5, the bent area 22 of first centring disk 201 is along the long side
11 length is L1, and the length of the bent area 22 of second centring disk 202 along the long side 11 is L2.Shown in Fig. 5
In embodiment, L2 is more than L1.The length of the bent area 22 is different, and the deformability embodied is also different.Length is longer
Bent area rigidity is weaker, and amplitude is relatively bigger caused by stress；Opposite, the shorter bent area rigidity of length is stronger, stress production
Raw amplitude is relatively smaller.By adjusting the length of the bent area, voice coil loudspeaker voice coil is set integrally to embody asymmetric vibration pliable.
In another embodiment, as shown in fig. 6, width of first centring disk 201 along the short side 12
It is different from width of second centring disk 202 along short side 12.The width D 1 of first centring disk 201 is less than the second centering
The width D 2 of branch piece 202.The wider centring disk of the width active force required when deforming upon is bigger, and rigidity is stronger.Pass through
The different centring disk of width is configured, voice coil loudspeaker voice coil can be made to have asymmetric vibration pliable, to adapt to the asymmetric hair of the operatic tunes
Acoustic device module.
Foregoing provide the mode of the structure of several change centring disks.By the way that with upper type, centring disk can be made
Rigidity and vibrate pliable difference so that the pliable asymmetry of vibration that voice coil loudspeaker voice coil is overall.The optional technology for changing structure above
Means can be combined with the technological means of the thickness of change centring disk provided by the utility model, so as to more accurately adjust
Performance between two centring disks, to reach desired vibrating effect.The utility model not combination to above-mentioned technological means
Mode is limited.
Although some specific embodiments of the present utility model are described in detail by example, this area
It is to be understood by the skilled artisans that above example merely to illustrate, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case of, to above example
Modify.The scope of the utility model is defined by the following claims.
Claims (8)
1. a kind of sound-producing device, it is characterised in that the centring disk including voice coil loudspeaker voice coil and located at voice coil loudspeaker voice coil bottom, the centering branch
Piece includes symmetrically arranged first centring disk and the second centring disk, first centring disk (201) and the second centering branch
The thickness of piece (202) is different, is configured to the pliable asymmetry of vibration for making the voice coil loudspeaker voice coil overall.
2. sound-producing device according to claim 1, it is characterised in that also have a pair including housing (10), the voice coil loudspeaker voice coil
Long side (11) and a pair of short edges (12), the voice coil loudspeaker voice coil are configured to vibrate in the housing (10)；
First centring disk (201) and the second centring disk (202) have first connecting portion (21), bent area (22) and sound
Connecting portion (23) is enclosed, the both ends of the bent area (22) connect with the first connecting portion (21) and coil connection (23) respectively
Connecing, first centring disk (201) and the second centring disk (202) are symmetrically distributed in the both sides of the voice coil loudspeaker voice coil, and described
One connecting portion (21) is fixed in the housing (10), and the coil connection (23) is connected with the short side (12) of the voice coil loudspeaker voice coil.
3. sound-producing device according to claim 1, it is characterised in that the thickness of first centring disk (201) is less than
Or three times of the thickness equal to the second centring disk (202)；
The thickness of first centring disk (201) is more than or equal to 1/3rd of the thickness of the second centring disk (202).
4. sound-producing device according to claim 3, it is characterised in that the thickness of first centring disk (201) is the
The half of the thickness of two centring disks (202).
5. sound-producing device according to claim 2, it is characterised in that there is connected unit in the side wall of the housing (10)
(101), the first connecting portion (21) is connected in the connected unit.
6. sound-producing device according to claim 2, it is characterised in that the first connecting portion (21) and coil connection
(23) there is difference in height, first centring disk (201) is different from the difference in height of second centring disk (202) between.
7. sound-producing device according to claim 2, it is characterised in that the bent area of first centring disk (201)
(22) length along the length of the long side (11) and the bent area (22) of second centring disk (202) along the long side (11)
Degree is different.
8. sound-producing device according to claim 2, it is characterised in that first centring disk (201) is along the short side
(12) width is different from width of second centring disk (202) along the short side (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720308513.8U CN206759713U (en) | 2017-03-27 | 2017-03-27 | sound-producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720308513.8U CN206759713U (en) | 2017-03-27 | 2017-03-27 | sound-producing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206759713U true CN206759713U (en) | 2017-12-15 |
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ID=60610808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720308513.8U Active CN206759713U (en) | 2017-03-27 | 2017-03-27 | sound-producing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206759713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020056961A1 (en) * | 2018-09-21 | 2020-03-26 | 歌尔股份有限公司 | Circuit board, speaker, electronic device, and polarization compensating method |
| WO2021088929A1 (en) * | 2019-11-08 | 2021-05-14 | 歌尔股份有限公司 | Sound generating device |
-
2017
- 2017-03-27 CN CN201720308513.8U patent/CN206759713U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020056961A1 (en) * | 2018-09-21 | 2020-03-26 | 歌尔股份有限公司 | Circuit board, speaker, electronic device, and polarization compensating method |
| WO2021088929A1 (en) * | 2019-11-08 | 2021-05-14 | 歌尔股份有限公司 | Sound generating device |
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