CN207070291U - Loudspeaker module and electronic equipment - Google Patents
Loudspeaker module and electronic equipment Download PDFInfo
- Publication number
- CN207070291U CN207070291U CN201720896661.6U CN201720896661U CN207070291U CN 207070291 U CN207070291 U CN 207070291U CN 201720896661 U CN201720896661 U CN 201720896661U CN 207070291 U CN207070291 U CN 207070291U
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- China
- Prior art keywords
- module
- loudspeaker
- sound pipe
- casing
- drag reduction
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Abstract
It the utility model is related to a kind of loudspeaker module and electronic equipment.The loudspeaker module includes module casing and loudspeaker monomer, cavity is provided with module casing, loudspeaker monomer is arranged in cavity, loudspeaker monomer separates the cavity into the preceding operatic tunes and the rear operatic tunes, the preceding operatic tunes includes sound pipe, go out sound pipe to pass from the sidepiece of module casing, drag reduction structures are provided with the inwall for go out sound pipe, drag reduction structures include at least one of lug boss and depressed part.A technical problem to be solved in the utility model be existing loudspeaker module to go out sound pipe all longer and narrower, and inwall is plane, causes that the non-linear distortion of module is big, and acoustic resistance is larger.One purposes of utility model is the acoustical behavior for improving loudspeaker module.
Description
Technical field
Electroacoustic switch technology field is the utility model is related to, more specifically, the utility model is related to a kind of loudspeaker module
And electronic equipment.
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.Existing loudspeaker module generally includes shell, contains loudspeaker monomer in shell, and loudspeaker monomer is by whole mould
Group back cavity is divided into two cavitys of the preceding operatic tunes and the rear operatic tunes.Loudspeaker monomer includes vibrating mass.It is that side is spoken module to go out sound pipe
The preceding operatic tunes important component, frequency response, distortion of its planform to loudspeaker all have a major impact.
Existing loudspeaker module, especially side speak module to go out sound pipe all longer and narrower, and inwall is plane.
In this structure, acoustic resistance is larger, and non-linear distortion is big, is unfavorable for the performance of module acoustical behavior.
Utility model content
A purpose of the present utility model is to provide a kind of new solution of loudspeaker module.
According to one side of the present utility model, there is provided a kind of loudspeaker module.The loudspeaker module includes module casing
And loudspeaker monomer, cavity is provided with the module casing, the loudspeaker monomer is arranged in the cavity, described
The cavity is divided into the preceding operatic tunes and the rear operatic tunes by loudspeaker monomer, and the preceding operatic tunes includes sound pipe, it is described go out sound pipe from institute
The sidepiece for stating module casing passes, it is described go out sound pipe inwall on be provided with drag reduction structures, the drag reduction structures include projection
At least one of portion and depressed part.
Alternatively, the drag reduction structures are depressed part, and the depressed part is groove, and the groove goes out sound pipe described in
Outer end direction extends；Either the depressed part be distributed in it is described go out sound pipe inwall on pit.
Alternatively, the drag reduction structures are depressed part, and the depressed part is groove, the cross section of the groove for U-shaped or
Person's V-arrangement.
Alternatively, it is described go out sound pipe cross section be rectangle, it is described go out sound pipe two long sides in it is at least one on
It is provided with the groove.
Alternatively, the lug boss be distributed in it is described go out sound pipe inwall on salient point.
Alternatively, the module casing includes module upper casing and module lower casing, the module upper casing and the module lower casing
Snap together.
Alternatively, the drag reduction structures and the module casing are integrally formed.
Alternatively, the drag reduction structures by binding agent be arranged on it is described go out sound pipe inwall on.
According to other side of the present utility model, there is provided a kind of electronic equipment.It is new that the electronic equipment includes this practicality
The loudspeaker module that type provides.
One of the present utility model has technical effect that, the loudspeaker module of the utility model embodiment, is going out sound pipe
Drag reduction structures are provided with inwall.Relative to the inwall of plane, the drag reduction structures can block the path that turbulent flow is formed, and reduce rapid
The formation of quasi-ordering is flowed, adds laminar boundary layer region, and then reduce the acoustic resistance of sound air-flow.
In addition, by the setting of drag reduction structures, the surface area of inwall is added, so as to add acoustic radiation area, is improved
Sound effect.
In addition, by the setting of drag reduction structures, the turbulence state of sound air-flow is improved, adds laminar flow characteristics so that
The non-linear decrease of sound air-flow, can reduce the harmonic distortion 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
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 exploded view according to the loudspeaker module of one embodiment of the present utility model.
Fig. 2 is the sectional view according to the preceding operatic tunes of one embodiment of the present utility model.
Fig. 3 is the partial enlarged drawing at A in Fig. 1.
Description of reference numerals：
11：Module casing；12：Loudspeaker monomer；13：Go out sound pipe；14：The preceding operatic tunes；15：Groove；16：Long side.
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.
According to one embodiment of the present utility model, there is provided a kind of loudspeaker module.The loudspeaker module includes module
Housing 11 and loudspeaker monomer 12.Cavity is provided with module casing 11, loudspeaker monomer 12 is arranged in cavity.Example
Such as, loudspeaker monomer 12 is moving-coil type or moving-iron type.
Loudspeaker monomer 12 separates the cavity into the preceding operatic tunes 14 and the rear operatic tunes.For example, the preceding operatic tunes 14 and loudspeaker monomer 12
Vibrational system connection.The operatic tunes connects with the magnetic circuit system of loudspeaker monomer 12 afterwards.The operatic tunes is used to improve loudspeaker module afterwards
Low-frequency effect.
The preceding operatic tunes 14 includes sound pipe 13, and the sidepiece for going out sound pipe 13 from module casing 11 passes.It is used for for example, going out sound pipe 13
The sound wave that guiding loudspeaker monomer 12 is sent, to travel to exterior space.
Drag reduction structures are provided with the inwall for going out sound pipe 13, drag reduction structures include at least one in lug boss and depression
Kind.For example, lug boss is the projection for protruding from surface.Depressed part is the groove 15 or pit for being arranged on surface.
The loudspeaker module of the utility model embodiment, drag reduction structures are provided with the inwall for going out sound pipe 13.Relative to
The inwall of plane, the drag reduction structures can block the path that turbulent flow is formed, and reduce the formation of turbulent flow quasi-ordering, add wake boundary
Layer region, and then reduce the acoustic resistance of sound air-flow.
In addition, by the setting of drag reduction structures, the surface area of inwall is added, so as to add acoustic radiation area, is improved
Sound effect.
In addition, by the setting of drag reduction structures, the turbulence state of sound air-flow is improved, adds laminar flow characteristics so that
The non-linear decrease of sound air-flow, can reduce the harmonic distortion of loudspeaker module.
Further, since go out the surface area increase of the inwall of sound pipe, therefore the increase of the area of dissipation of loudspeaker module, improve and raise
The radiating effect of sound device module.
For example, drag reduction structures are depressed part.Depressed part is groove 15.Groove 15 prolongs towards the outer end direction for going out sound pipe 13
Stretch.For example, groove 15 is multiple, and multiple grooves 15 are distributed in out on the inwall of sound pipe side by side.In this way, sound
Sound air-flow can flow along the bearing of trend of groove 15, improve the directive property of sound.
In addition, groove 15 can block the path that turbulent flow is formed, the turbulent flow that such sound air-flow is formed substantially reduces so that
The non-linear of sound air-flow further weakens, so as to add acoustic radiation efficiency.
In addition, this structure further increases the surface area for adding inwall, so as to add acoustic radiation area, improve
Sound effect.
Optionally, the cross section of groove 15 is U-shaped or V-arrangement.The acoustic resistance of both structures is smaller, and is easy to add
Work.
User can set the parameters such as depth and width, the angle of groove 15 according to actual conditions.
The shape not limited to this of the cross section of groove 15, as long as the path that turbulent flow is formed can be blocked, reduce non-linear.
In order to facilitate the demolition, installation of loudspeaker monomer 12, in one example, module casing 11 includes module upper casing and module
Lower casing (not shown).Module upper casing snaps together with module lower casing.
When mounted, first, loudspeaker module is arranged in any one in module upper casing or module lower casing；So
Afterwards, module upper casing and module lower casing are snapped together.
In this example embodiment, as shown in figure 1, the cross section for going out sound pipe 13 is rectangle.In two long sides 16 of sound pipe 13 are gone out
It is at least one it is upper set fluted 15.It is arranged on for example, multiple grooves 15 are arranged side by side in two long sides 16.Long side 16 is rectangle
In longer side.For example, the direction of vibration for extending perpendicularly to loudspeaker monomer 12 of long side 16.Set relative on short side
Groove 15 is put, can so obtain bigger acoustic radiation area.
For example, groove 15 is arranged on the going out on the short side of sound pipe 13 of rectangle.Can equally play reduces turbulent flow quasi-ordering, increases
Add laminar boundary layer region, reduce the nonlinear purpose of sound air-flow.
, so can further increase sound for example, groove 15 is arranged on into the going out in the long side 16 and short side of sound pipe 13 of rectangle
Swept area.
In another example, lug boss is the salient point being distributed in out on the inwall of sound pipe 13.For example, salient point is shaped as
Circle, ellipse, triangle, rectangle, other polygons or irregular shape.Salient point can equally play backstop action, resistance
The path that disconnected turbulent flow is formed, laminar boundary layer region is added, and then reduce the acoustic resistance of sound air-flow.
In other examples, depressed part is the pit being distributed in out on the inwall of sound pipe 13.For example, including pit is forms
The scattered hole on the surface of wall.The shape of pit is, for example, circle, ellipse, rectangle, triangle, other polygons or not advised
The then hole of shape.This setup, the path that can equally block turbulent flow to be formed, the turbulent flow that sound air-flow is formed is set to drop significantly
It is low.So, the non-linear of sound air-flow further weakens.
For example, multiple pits are evenly distributed on inwall.
In other examples, drag reduction structures include the groove and salient point being arranged on out on the inwall of sound pipe.This set side
Formula, reduction turbulent flow can be equally played, reduce acoustic resistance, reduce nonlinear effect.
Preferably, drag reduction structures and module casing 11 are integrally formed.For example, by way of injection molding,
Lug boss or depressed part are formed on the inwall for going out sound pipe 13 of module casing 11.
In other examples, drag reduction structures are arranged on out by binding agent on the inwall of sound pipe 13.For example, first, subtract
Hinder structure and the individually injection molding of module casing 11；Then, drag reduction structures are adhered to out by sound pipe 13 by binding agent
On inwall.
According to another embodiment of the present utility model, there is provided a kind of electronic equipment.For example, electronic equipment be mobile phone,
In tablet personal computer, notebook computer, wearable device, intercom, television set, telephone set or game machine.
The electronic equipment includes loudspeaker module provided by the utility model.The electronic equipment has the good spy of sound effect
Point.
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 (9)
1. a kind of loudspeaker module, it is characterised in that including module casing and loudspeaker monomer, set in the module casing
There is cavity, the loudspeaker monomer is arranged in the cavity, and the cavity is divided into the preceding operatic tunes by the loudspeaker monomer
With the rear operatic tunes, the preceding operatic tunes includes sound pipe, it is described go out sound pipe from the module casing sidepiece pass, it is described go out sound pipe
Inwall on be provided with drag reduction structures, the drag reduction structures include at least one of lug boss and depressed part.
2. loudspeaker module according to claim 1, it is characterised in that the drag reduction structures are depressed part, the depression
Portion is groove, and the groove goes out the outer end direction extension of sound pipe described in；Either
The depressed part be distributed in it is described go out sound pipe inwall on pit.
3. loudspeaker module according to claim 2, it is characterised in that the drag reduction structures are depressed part, the depression
Portion is groove, and the cross section of the groove is U-shaped or V-arrangement.
4. loudspeaker module according to claim 3, it is characterised in that it is described go out sound pipe cross section be rectangle, in institute
State out and be provided with the groove at least one in two long sides of sound pipe.
5. loudspeaker module according to claim 1, it is characterised in that the lug boss be distributed in it is described go out sound pipe
Salient point on inwall.
6. loudspeaker module according to claim 1, it is characterised in that the module casing includes module upper casing and module
Lower casing, the module upper casing snap together with the module lower casing.
7. loudspeaker module according to claim 1, it is characterised in that the drag reduction structures and the module casing are one
Body formed.
8. loudspeaker module according to claim 1, it is characterised in that the drag reduction structures are arranged on by binding agent
It is described go out sound pipe inwall on.
9. a kind of electronic equipment, it is characterised in that including the loudspeaker module as described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720896661.6U CN207070291U (en) | 2017-07-21 | 2017-07-21 | Loudspeaker module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720896661.6U CN207070291U (en) | 2017-07-21 | 2017-07-21 | Loudspeaker module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207070291U true CN207070291U (en) | 2018-03-02 |
Family
ID=61516774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720896661.6U Active CN207070291U (en) | 2017-07-21 | 2017-07-21 | Loudspeaker module and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207070291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111083582A (en) * | 2019-11-22 | 2020-04-28 | 歌尔股份有限公司 | Loudspeaker module and electronic device |
-
2017
- 2017-07-21 CN CN201720896661.6U patent/CN207070291U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111083582A (en) * | 2019-11-22 | 2020-04-28 | 歌尔股份有限公司 | Loudspeaker module and electronic device |
| WO2021098528A1 (en) * | 2019-11-22 | 2021-05-27 | 歌尔股份有限公司 | Loudspeaker module and electronic device |
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