CN207070290U - A kind of loudspeaker module - Google Patents
A kind of loudspeaker module Download PDFInfo
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- CN207070290U CN207070290U CN201720766906.3U CN201720766906U CN207070290U CN 207070290 U CN207070290 U CN 207070290U CN 201720766906 U CN201720766906 U CN 201720766906U CN 207070290 U CN207070290 U CN 207070290U
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- cushion
- wall
- sound
- loudspeaker
- inwall
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Abstract
The utility model discloses a kind of loudspeaker module.The module includes loudspeaker monomer and the module casing with cavity, and loudspeaker monomer is arranged in cavity, and the vibrating diaphragm of loudspeaker monomer separates the cavity into the preceding operatic tunes and the rear operatic tunes；It is provided with sound-absorbing member in the rear operatic tunes, what sound-absorbing member included surrounding filling region encloses wall, and enclosing wall has opening portion, and ventilative packaging part is provided with opening portion, and granular sound-absorbing material is filled with filling region；Cushion is fixed with the inwall for enclose wall, cushion is used for friction or collision rigid between avoiding granular sound-absorbing material and enclosing wall.The module can efficiently reduce or even avoid sound-absorbing material, especially graininess, block sound-absorbing material to occur to crush due to hitting with inwall by the setting of cushion, can reduce the generation of flour, extend the service life of loudspeaker module.
Description
Technical field
A kind of electroacoustic switch technology field is the utility model is related to, more particularly, to a kind of loudspeaker module.
Background technology
Loudspeaker module is the important acoustical device of portable electric appts, and it is used to complete between electric signal and acoustical signal
Conversion, be a kind of energy conversion device.Existing loudspeaker module generally includes shell.Loudspeaker list is contained in shell
Body.Whole module cavity is divided into the preceding operatic tunes and the rear operatic tunes by the vibrating diaphragm of loudspeaker monomer.The pressure release of the operatic tunes and module casing afterwards
Hole connects.
In order to reduce the F of moduleo(lowest resonance frequency), low frequency frequency response, and spread bandwidth are improved, generally in the rear operatic tunes
Interior filling sound-absorbing material.Sound-absorbing material can effectively reduce the F of moduleo, and make it that intermediate frequency frequency response curve is more smooth.
However, during speaker operation, because air-flow constantly impacts sound-absorbing particle, and the inwall of the rear operatic tunes is hard
Material, therefore the continuous collision friction of the inwall of sound-absorbing particle and shell.After working long hours, sound-absorbing particle can crush.
In addition, during class reliability test is fallen, sound-absorbing particle can also rub with filling region perimeter shell
Collision, causes sound-absorbing Particle Breakage.
Can so sound-absorbing effect be caused to be deteriorated, and broken caused flour can escape between the magnetic of loudspeaker monomer from screen cloth
In gap, loudspeaker module is caused to produce noise.
Utility model content
A purpose of the present utility model is to provide a kind of new solution of loudspeaker module.
According to first aspect of the present utility model, there is provided a kind of loudspeaker module.The module include loudspeaker monomer and
Module casing with cavity, the loudspeaker monomer are arranged in the cavity, and the vibrating diaphragm of the loudspeaker monomer is by institute
State cavity and be divided into the preceding operatic tunes and the rear operatic tunes；Sound-absorbing member is provided with the operatic tunes in the rear, the sound-absorbing member includes surrounding filling out
The wall that encloses in region is filled, the wall that encloses has opening portion, ventilative packaging part is provided with the opening portion, in the filling
Granular sound-absorbing material is filled with region；Cushion is fixed with the inwall for enclosing wall, the cushion is used
In avoiding granular sound-absorbing material and enclose friction or collision rigid between wall.
Alternatively, the cushion is adhesively fixed on described enclose on the inwall of wall.
Alternatively, the cushion is acoustical cotton.
Alternatively, the acoustical cotton is bonded on the inwall by double faced adhesive tape；
The thickness of the double faced adhesive tape is 0.03mm-0.1mm, and the thickness of the acoustical cotton is 0.2mm-1mm.
Alternatively, the cushion is high polymer material, and the cushion is molded over by the method for dijection injection molding
On the inwall for enclosing wall.
Alternatively, the cushion is high polymer material, and the cushion is molded over by the method for coating to be enclosed described
On the inwall to combine harmoniously.
Alternatively, the cushion is silica gel or thermoplastic elastomer (TPE).
Alternatively, the thickness of the cushion is 0.1mm-1mm.
Alternatively, the wall that encloses includes the sidewall sections by being extended out on the inwall of module casing, the side of sidewall portion
Point with the module casing integrated injection molding, it is described enclose wall and also include being surrounded by sidewall sections the one of module casing
Part, also serve as the bottom wall for enclosing wall.
Alternatively, it is described to enclose the groove profile part that wall is independent one end open, the groove profile part and the module casing it
Between be fixed by bonding, ultra-sonic welded, laser sweat soldering.
Alternatively, enclose wall of all module casing parts corresponding with the operatic tunes afterwards as sound-absorbing member, after described
The overall filling region as sound-absorbing material of the operatic tunes, the relief hole of loudspeaker monomer is as the opening portion.
Alternatively, the cushion is located at the bottom surface and/or side for enclosing wall.
Inventor of the present utility model has found that in the prior art, the inwall of the rear operatic tunes of loudspeaker module is hard material
Material.During long-term work, sound-absorbing particle constantly collides with inwall, causes Particle Breakage, can so influence sound-absorbing effect, and
And produce noise.Therefore, the technical assignment or technical problem to be solved that the utility model to be realized are this area skills
It is that art personnel never expect or it is not expected that, therefore the utility model is a kind of new technical scheme.
In embodiment of the present utility model, cushion is provided with the inwall of the rear operatic tunes.Cushion is flexible.
When being hit by sound-absorbing material, elastic deformation can occur for cushion, with buffering collision of closed.Cushion can efficiently reduce even
Sound-absorbing material, especially graininess, block sound-absorbing material is avoided to occur broken due to being hit with inwall.Pass through this side
Formula, the generation of flour can be reduced.
In addition, the setting of cushion extends the service life of sound-absorbing material, the service life of loudspeaker module is extended.
In addition, the setting of cushion can reduce the amount into the flour of magnetic gap, reduce the noise thereby resulted in, carry
The high sound effect of loudspeaker module.
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
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiment of the present utility model, and
And it is used to explain principle of the present utility model together with its explanation.
Fig. 1 is the exploded view according to the loudspeaker module of the utility model one embodiment.
Fig. 2 is the sectional view according to the loudspeaker module of the utility model one embodiment.
Fig. 3 is the partial enlarged drawing at A in Fig. 2.
Description of reference numerals：
10：Cushion；11：Upper casing；12：Loudspeaker monomer；13：FPCB；14：Lower casing；15：Filling aperture；16：Diaphragm seal；
17：Bleeder port；18：Damping piece；20：Filling region；21：Screen cloth；22：The preceding operatic tunes；23：Side wall；24：Bottom wall.
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, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus 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.
Fig. 1 is the exploded view according to the loudspeaker module of the utility model one embodiment.Fig. 2 is according to the utility model
The sectional view of the loudspeaker module of one embodiment.
According to one embodiment of the present utility model, there is provided a kind of loudspeaker module.As shown in figure 1, the module includes
Loudspeaker monomer 12 and the module casing with cavity.For example, module casing includes the upper casing 11 and lower casing 14 snapped together.
Cavity is internally formed in upper casing 11 and lower casing 14.Module casing is in integrally flat structure, so that loudspeaker module is more frivolous.Example
Such as, loudspeaker monomer 12 is moving-coil type monomer or moving-iron type monomer.For convenience of explanation, in this embodiment with moving-coil type list
Exemplified by body.
Loudspeaker monomer 12 is arranged in cavity.The operatic tunes 22 is with after before the vibrating diaphragm of loudspeaker monomer 12 separates the cavity into
The operatic tunes.Sound-absorbing member is provided with the rear operatic tunes.What sound-absorbing member included surrounding filling region 20 encloses wall.For example, filling region
20 are arranged on upper casing 11.Enclosing wall has opening portion.Ventilative packaging part is provided with opening portion.Ventilative packaging part allows
Vibratory flow to sound-absorbing material by and being packaged.For example, ventilative packaging part is screen cloth 21.Filled in filling region 20
There is granular sound-absorbing material.For example, sound-absorbing material is in natural zeolite, activated carbon, white carbon, sepiolite cashmere and zeolite powder
It is at least one.Sound-absorbing material is filled into filling region 20 with graininess or bulk.As shown in figure 1, also set on upper casing 11
It is equipped with for the filling aperture 15 of filling sound-absorbing material and the diaphragm seal 16 for sealing the filling aperture 15.
As shown in figure 1, loudspeaker monomer 12 is connected by FPCB13 with external circuit.Connect afterwards on the inside of the operatic tunes and vibrating diaphragm
Lead to, and the bleeder port 17 for connecting exterior space and the rear operatic tunes is provided with module casing.Bleeder port 17 is used to balance
The inside and outside acoustic pressure of vibrating diaphragm.Preferably, the inner side of bleeder port 17 is provided with damping piece 18, to improve acoustic resistance.The preceding operatic tunes 22 has
There is acoustic aperture (not shown).Go out acoustic aperture to connect with the outside of vibrating diaphragm, to send sound.
Pass from the sidepiece of module casing for example, going out acoustic aperture, spoken loudspeaker module with forming side.In this way,
The floor space of loudspeaker module is small, has complied with electronics miniaturization, lightening development trend.
In embodiment of the present utility model, cushion 10 is fixed with the inwall for enclosing wall.Cushion is used
In buffering and sound-absorbing material granule and enclose the friction or collision between wall.The cushion 10 is used to avoid granular sound-absorbing
Material and enclose friction or collision rigid between wall.It will be appreciated to those of skill in the art that hard collision can cause to enclose
The damage combined harmoniously, or the breakage of sound-absorbing material.
Alternatively, cushion is soft material or elastomeric material.
Alternatively, as Figure 2-3, the wall that encloses includes the side wall 23 by being extended out on the inwall of module casing
Point.The part of side wall 23 and the module casing integrated injection molding.The wall that encloses also includes being surrounded by the part of side wall 23
A part for the module casing to get up, also serve as the bottom wall 24 for enclosing wall.So, the structure of module casing is simple, and integrally notes
The mode of type is moulded into so that the processing of module casing becomes easier to.
Alternatively, the cushion 10 is located at the bottom surface and/or side for enclosing wall.Bottom surface refers to and loudspeaker monomer
The perpendicular face in 12 axial direction.Relative in the part for enclosing wall, cushion 10, the face of this setup cushion 10 are set
Product is bigger, and buffering effect is more preferable.
Can also be, it is described to enclose the groove profile part that wall is independent one end open.The groove profile part and the module casing
Between be fixed by bonding, ultra-sonic welded, laser sweat soldering.This setup, equally it is easy to enclose wall and module
The processing of housing.
It is also possible that all module casing parts corresponding with the operatic tunes afterwards enclose wall as sound-absorbing member.It is described
The overall filling region 20 as sound-absorbing material of the operatic tunes afterwards.The relief hole of loudspeaker monomer 12 is as the opening portion.Relief hole
For connecting loudspeaker monomer and the rear operatic tunes.This structure takes full advantage of the space of the rear operatic tunes, improves loudspeaker module
Sound-absorbing effect.
In addition, in this example embodiment, it is simple without setting opening portion, the structure of module casing in addition.
In the utility model, when being hit by sound-absorbing material, elastic deformation can occur for cushion 10, be hit with buffering
Hit.Cushion 10 can efficiently reduce or even avoid sound-absorbing material, especially graininess, block sound-absorbing material due to it is interior
Wall hits and occurred broken.In this way, the generation of flour can be reduced.
In addition, the setting of cushion 10 extends the service life of sound-absorbing material, extend loudspeaker module uses the longevity
Life.
In addition, the setting of cushion 10 can reduce the amount into the flour of magnetic gap, reduce and raised because flour enters
Noise caused by the magnetic gap of sound device monomer 12, improve the sound effect of loudspeaker module.
Preferably, the cushion 10 is adhesively fixed on described enclose on the inwall of wall.For example, cushion 10 passes through bonding
Agent is bonded on the inwall for enclosing wall.In this way, the bonding strength of cushion 10 and inwall is high.
Alternatively, the cushion 10 is acoustical cotton.Acoustical cotton is flexible good, and shock-absorbing capacity is good, good tolerance
And the characteristics of in light weight.
In addition, acoustical cotton can also improve after the operatic tunes sound-absorbing effect.
Those skilled in the art according to being actually needed, can set the thickness of acoustical cotton.
Preferably, the acoustical cotton is bonded on the inwall for enclosing wall by double faced adhesive tape.The bonding force of double faced adhesive tape is strong, and
And can be cut according to the size of different inwalls, paste very convenient.The thickness of the double faced adhesive tape is 0.03mm-0.1mm,
The thickness of the acoustical cotton is 0.2mm-1mm.Above-mentioned size range makes cushion 10 occupy little space so that the energy of filling region 20
More sound-absorbing materials are enough filled, and buffering effect is good.
Alternatively, the cushion 10 is high polymer material.Alternatively, the cushion 10 is silica gel or thermoplastic elastic
Body.For example, thermoplastic elastomer (TPE) is TPU, TPEE, TPO, TPV etc..These materials have structural strength high, good tolerance
Feature.The cushion 10 is molded over described enclose on the inwall of wall by the method for dijection injection molding.For example, penetrated one
In, the various parts of upper casing 11 are formed, including form the bottom wall 24 and side wall 23 of filling region 20；Hit two, in bottom wall 24
With the cushion 10 that high polymer material is formed in side wall 2323.
Can also be that the cushion 10 is high polymer material.The cushion 10 is molded over institute by the method for coating
State on the inwall for enclosing wall.Alternatively, the cushion 10 is silica gel or thermoplastic elastomer (TPE).For example, thermoplastic elastomer (TPE) is
TPU, TPEE, TPO, TPV etc..These materials have the characteristics of high structural strength, good tolerance.
Further, the thickness of the cushion 10 is 0.1mm-1mm.It is good that the thickness range can guarantee that cushion 10 has
Good buffering effect, and save the space of filling region 20.
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 example above 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 (12)
1. a kind of loudspeaker module, including loudspeaker monomer (12) and the module casing with cavity, the loudspeaker monomer
(12) it is arranged in the cavity, the cavity is divided into the preceding operatic tunes and rear sound by the vibrating diaphragm of the loudspeaker monomer (12)
Chamber；Characterized in that,
Sound-absorbing member is provided with the operatic tunes in the rear, the sound-absorbing member includes the wall that encloses for surrounding filling region (20), described
Enclosing wall has opening portion, and ventilative packaging part is provided with the opening portion, in the filling region (20) filled with
Granular sound-absorbing material；
Cushion (10) is fixed with the inwall for enclosing wall, the cushion (10) is used to avoid granular sound-absorbing
Material and enclose friction or collision rigid between wall.
2. loudspeaker module according to claim 1, it is characterised in that the cushion (10) is adhesively fixed on described enclose
On the inwall to combine harmoniously.
3. loudspeaker module according to claim 2, it is characterised in that the cushion (10) is acoustical cotton.
4. loudspeaker module according to claim 3, it is characterised in that the acoustical cotton is bonded in institute by double faced adhesive tape
State on inwall；
The thickness of the double faced adhesive tape is 0.03mm-0.1mm, and the thickness of the acoustical cotton is 0.2mm-1mm.
5. loudspeaker module according to claim 1, it is characterised in that the cushion (10) is high polymer material, institute
State cushion (10) and described enclose on the inwall of wall is molded over by the method for dijection injection molding.
6. loudspeaker module according to claim 1, it is characterised in that the cushion (10) is high polymer material, institute
State cushion (10) and described enclose on the inwall of wall is molded over by the method for coating.
7. loudspeaker module according to claim 1, it is characterised in that the cushion (10) is silica gel or thermoplastic elastomehc
Property body.
8. according to the loudspeaker module described in claim 5,6 or 7, it is characterised in that the thickness of the cushion (10) is
0.1mm-1mm。
9. loudspeaker module according to claim 1, it is characterised in that the wall that encloses includes the inwall by module casing
On side wall (23) part for extending out, the side wall (23) is described to enclose partly with the module casing integrated injection molding
Wall also includes a part for the module casing partly surrounded by side wall (23), also serves as the bottom wall (24) for enclosing wall.
10. loudspeaker module according to claim 1, it is characterised in that the wall that encloses is independent one end open
Groove profile part, it is fixed between the groove profile part and the module casing by Nian Jie, ultra-sonic welded, laser sweat soldering.
11. loudspeaker module according to claim 1, it is characterised in that all module shells corresponding with the operatic tunes afterwards
Enclose wall of the body portion as sound-absorbing member, it is described after the overall filling region (20) as sound-absorbing material of the operatic tunes, loudspeaker list
The relief hole of body (12) is as the opening portion.
12. loudspeaker module according to claim 1, it is characterised in that the cushion (10) encloses wall located at described
Bottom surface and/or side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720766906.3U CN207070290U (en) | 2017-06-28 | 2017-06-28 | A kind of loudspeaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720766906.3U CN207070290U (en) | 2017-06-28 | 2017-06-28 | A kind of loudspeaker module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207070290U true CN207070290U (en) | 2018-03-02 |
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ID=61507606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720766906.3U Active CN207070290U (en) | 2017-06-28 | 2017-06-28 | A kind of loudspeaker module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207070290U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462918A (en) * | 2018-03-21 | 2018-08-28 | 歌尔股份有限公司 | A kind of loud speaker module and electronic equipment |
| CN109688511A (en) * | 2019-01-30 | 2019-04-26 | 苏州夸克新材料科技有限公司 | A kind of speaker unit |
-
2017
- 2017-06-28 CN CN201720766906.3U patent/CN207070290U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462918A (en) * | 2018-03-21 | 2018-08-28 | 歌尔股份有限公司 | A kind of loud speaker module and electronic equipment |
| CN109688511A (en) * | 2019-01-30 | 2019-04-26 | 苏州夸克新材料科技有限公司 | A kind of speaker unit |
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