CN103354629B - Speaker module - Google Patents
Speaker module Download PDFInfo
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- CN103354629B CN103354629B CN201310320228.4A CN201310320228A CN103354629B CN 103354629 B CN103354629 B CN 103354629B CN 201310320228 A CN201310320228 A CN 201310320228A CN 103354629 B CN103354629 B CN 103354629B
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Abstract
The invention discloses a kind of speaker module, relate to electro-acoustic product technical field, including the fore shell being combined as a whole and back cover, the module inner chamber that described fore shell and back cover surround contains loudspeaker monomer, the periphery of described loudspeaker monomer is provided with the cyclic convex edge extended outside described loudspeaker monomer, one end face of described convex edge seals with described fore shell and combines, and the end face structure of described convex edge is suitable with the surface texture of the described fore shell at the place that combines.Speaker module of the present invention is while being effectively prevented acoustic short circuit, and front operatic tunes volume is less, has the broader high frequency response of frequency band, and acoustical behavior is high.
Description
Technical field
The present invention relates to electro-acoustic product technical field, particularly to a kind of speaker module.
Background technology
Speaker module is the important acoustic element in portable electric appts, is used for converting electrical energy into acoustic energy,
It is the sound-generating element of portable electric appts, but has what a technical problem can be serious to have influence on speaker mould
The acoustical behavior of group, this technical problem those skilled in the art are referred to as " acoustic short circuit "." acoustic short circuit " refers to
180 ° are differed with the acoustic phase radiated below, the front operatic tunes of module and rear operatic tunes phase before the diaphragm of loudspeaker
Logical, the sound that vibrating diaphragm radiates backward offsets with the sound before vibrating diaphragm, and then affects the sound of speaker module
Learn performance.
In order to overcome the technical problem of above-mentioned acoustic short circuit, those skilled in the art is typically with at speaker
A compressible foam is pasted, in order to prevent speaker between protecgulum and the fore shell of speaker module of monomer
The front operatic tunes of module communicates with the rear operatic tunes.But, foam is to have certain thickness object, single with regard to sealing
For, it should the biggest sealing of thickness being foam is the best, will have certain thickness foam and be pasted onto and raise one's voice
Between device monomer and speaker module fore shell, bring problems with can to the overall performance of speaker module:
If the thickness of a speaker module is certain, then before will increasing speaker module after having pasted foam
The volume of the operatic tunes, the operatic tunes after the thickness of loudspeaker monomer will certainly being reduced accordingly or reducing speaker module
Volume.The reduction of loudspeaker monomer thickness can cause reducing of its internal acoustic part dimension, then can reduce and raise
The sensitivity of sound device module, output etc., thus reduce the acoustical behavior of speaker module；The front operatic tunes
Increase can reduce the high frequency bandwidth of speaker module, and the rear operatic tunes reduces the low-frequency band that then can reduce speaker module
Width, causes speaker module to send audio distortions etc..
If the thickness of two loudspeaker monomers and the rear operatic tunes given volume of speaker module, then paste bubble
After cotton in addition to reducing the high frequency bandwidth of speaker module, also will increase the thickness of speaker module,
This will can not meet the trend of speaker module slimming development.
Summary of the invention
The technical problem to be solved is to provide a kind of speaker module, and this speaker module is effectively
Prevent acoustic short circuit while, front operatic tunes volume is less, has a broader frequency response, and acoustical behavior is high.
For solving above-mentioned technical problem, the technical scheme is that
A kind of speaker module, including the fore shell being combined as a whole and back cover, described fore shell and back cover surround
Containing loudspeaker monomer in module inner chamber, the periphery of described loudspeaker monomer is provided with to described loudspeaker monomer
The cyclic convex edge that outside extends, an end face of described convex edge seals with described fore shell and combines, described convex edge
End face structure is suitable with the surface texture of the described fore shell at the place that combines.
Wherein, defining described convex edge relative to the end face of the bottom of described fore shell is front end face, described convex edge
Front end face seals with described fore shell and combines.
Wherein, described loudspeaker monomer includes monomer shell and the monomer protecgulum combined, described monomer
Vibrational system and magnetic circuit system is contained in the cavity that shell and monomer protecgulum surround.
Wherein, the longitudinal profile structure of described convex edge is square, trapezoidal or triangle.
As a kind of embodiment, described convex edge is arranged at described monomer shell away from the one of described vibrational system
End, is provided with the boss portion of annular in described fore shell, the front end face of described convex edge is close with the end face of described boss portion
Sealed knot closes.Described convex edge is structure as a whole with described monomer shell.
As another embodiment, described convex edge is arranged at described monomer shell near described vibrational system
One end, is provided with the end face of the boss portion of annular, the front end face of described convex edge and described boss portion in described fore shell
Seal and combine.Described convex edge is structure as a whole with described monomer shell.
As another embodiment, described convex edge is arranged on described monomer protecgulum, the front end of described convex edge
Face and the end face of described monomer protecgulum, the front end face of described convex edge is combined with the sealed bottom of described fore shell.
Described convex edge is structure as a whole with described monomer protecgulum.
After have employed technique scheme, the invention has the beneficial effects as follows:
Owing to speaker module of the present invention includes the fore shell and the back cover that are combined as a whole, fore shell and back cover surround
Containing loudspeaker monomer in module inner chamber, the periphery of loudspeaker monomer is provided with and extends outside loudspeaker monomer
Cyclic convex edge, an end face of convex edge and fore shell seal and combine, the end face structure of convex edge and the place that combines
The surface texture of fore shell is suitable.This convex edge being located at loudspeaker monomer periphery seals, with fore shell, the skill combined
Art means can effectively prevent the front operatic tunes of speaker module from communicating with the rear operatic tunes, is solving the skill of acoustic short circuit
The acoustical behavior of speaker module is also improved while art problem.Concrete beneficial effect can be from following two
Aspect embodies:
If the thickness of a speaker module is certain, before the speaker module of the present invention, operatic tunes volume diminishes,
Expansion for loudspeaker monomer size or rear operatic tunes volume provides steric requirements, the increasing of loudspeaker monomer size
The acoustical behavioies such as sensitivity and the output that can improve greatly speaker module；The front operatic tunes diminishes to increase and raises
The high frequency response bandwidth of sound device module, rear operatic tunes volume increases the LF-response band that then can strengthen speaker module
Width, promotes the acoustical behavior of speaker module.
If the loudspeaker monomer size of two speaker module internal and rear operatic tunes given volume, the present invention raises
Before sound device module, operatic tunes volume diminishes, and can also reduce while increasing speaker module high frequency response bandwidth
The height of speaker module so that speaker module is thinning, meets the requirement of speaker module slimming development.
Accompanying drawing explanation
Fig. 1 is the stereo decomposing structural representation of speaker module embodiment one of the present invention；
Fig. 2 is the internal structure schematic diagram of speaker module embodiment one of the present invention；
Fig. 3 is the external structure schematic diagram of speaker module embodiment one of the present invention；
Fig. 4 is the line A-A cutaway view Amplified image of Fig. 3；
Fig. 5 is the cross-sectional view of speaker module embodiment two of the present invention；
Fig. 6 is the cross-sectional view of speaker module embodiment three of the present invention；
In figure: 10a, fore shell, 10b, fore shell, 10c, fore shell, 12a, boss portion, 12b, boss portion,
20, loudspeaker monomer, 21, convex edge, 22a, monomer shell, 22b, monomer shell, 22c, monomer shell,
24a, monomer protecgulum, 24b, monomer protecgulum, 260, magnetic conductive board, 262, internal magnet, 264, external magnet,
266, interior washer, 268, outer washer, 280, vibrating diaphragm, 282, ball item, 284, voice coil loudspeaker voice coil, 30, FPCB,
40, back cover.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the present invention is expanded on further.
Embodiment one:
As Fig. 1 and Fig. 2 jointly shown in, a kind of speaker module, including the fore shell 10a being combined as a whole and
Back cover 40, fore shell 10a and back cover 40 surround module inner chamber, and module inner chamber is divided into two parts, the least
Cavity in contain loudspeaker monomer 20, the cavity that opposite side is bigger is the rear operatic tunes, loudspeaker monomer 20
Arrange with rear operatic tunes horizontal Tile.The periphery of loudspeaker monomer 20 is provided with and extends outside loudspeaker monomer 20
Cyclic convex edge 21, be provided with in fore shell 10a annular boss portion 12a, boss portion 12a with fore shell 10a is
Integrative-structure, the end face of the boss portion 12a open end less than fore shell 10a.Definition convex edge 21 is relative to front
End face bottom shell 10a is front end face, and another end face of convex edge 21 is rear end face, the front end of convex edge 21
Face is overlapped on the end face of boss portion 12a, and suitable with the end face structure of boss portion 12a, and convex edge
The front end face of 21 and the end face of boss portion 12a are sealed by viscose glue and combine.Speaker module also includes for electricity
Connect loudspeaker monomer 20 and the FPCB30 of module external circuit.This loudspeaker monomer 20 periphery of being located at
Before the technological means that convex edge 21 is combined with the end face seal of boss portion 12a can effectively prevent speaker module
The operatic tunes communicates with the rear operatic tunes, also improves speaker module while solving the technical problem of acoustic short circuit
Acoustical behavior.
As Fig. 3 and Fig. 4 jointly shown in, loudspeaker monomer 20 includes the monomer shell 22a combined
Vibrational system is contained in the cavity surrounded with monomer protecgulum 24a, monomer shell 22a and monomer protecgulum 24a
And magnetic circuit system.Magnetic circuit system includes the magnetic conductive board 260 being combined with monomer shell 22a, on magnetic conductive board 260
Being provided with internal magnet 262, the peripheral ring of internal magnet 262 is wound with external magnet 264, internal magnet 262 and external magnet
Interior washer 266 and outer washer 268 it is respectively equipped with on 264.Internal magnet 262 and interior washer 266 form internal magnetic circuit,
External magnet 264 and outer washer 268 form external magnetic circuit, are formed with magnetic gap between internal magnetic circuit and external magnetic circuit.Shake
Dynamic system includes the vibrating diaphragm 280 that edge part is fixed between monomer shell 22a and monomer protecgulum 24a, vibrating diaphragm
280 sides relative to monomer protecgulum 24a be fixedly arranged in the middle of ball item 282, the opposite side of vibrating diaphragm 280 is fixed
Voice coil loudspeaker voice coil 284, the end of voice coil loudspeaker voice coil 284 is had to be positioned at magnetic gap.Voice coil loudspeaker voice coil 284 is according to by the electric current in coil
Size and Orientation in magnetic gap, do the motion of the reciprocating cutting magnetic line of force, thus drive vibrating diaphragm 280 to instigate air
Complete electroacoustic conversion.
As shown in Figure 4, convex edge 21 is arranged at monomer shell 22a one end away from vibrational system, convex edge 21
It is structure as a whole with monomer shell 22a.The longitudinal profile structure of convex edge 21 is near with a chamfer plane
Like square, chamfer plane is arranged at the rear end face side of convex edge 21, and being provided with chamfer plane can more effectively adapt to
Complicated module front casing structure.The front end face of convex edge 21 and the end face of boss portion 12a are horizontal plane.
The said structure of the convex edge 21 described in the present embodiment is the structure according to module shell, the sky of module inner chamber
Between and the difficulty or ease degree of one-tenth of processing and the preferred version selected, other structure can also be used in actual applications,
If its longitudinal profile structure is triangle or the polygon such as trapezoidal, if the front end face structure of convex edge with on fore shell
The end face structure of position combined with it is suitable, it is possible to meets and only just can be reached by gluing between two end faces
To sealing effectiveness.
In the present embodiment, monomer shell 22a is cabinet；Monomer protecgulum 24a can be plastics protecgulum, also
It can be metal bezel.
The assembling process of speaker module of the present invention is as follows:
S1, assembling loudspeaker monomer 20；
S2, on the front end face of convex edge 21 gluing；
S3, the vibrational system of glue-coated loudspeaker monomer 20 is installed on fore shell towards the bottom of fore shell 10a
In 10a, the end face adhesive seal of boss portion 12a of the front end face of convex edge 21 and fore shell 10a；
S4, FPCB30 is welded on loudspeaker monomer 20；
S5, back cover 40 is fastened on fore shell 10a, and back cover 40 is passed through supersonic welding with fore shell 10a
Connect and be integrated, so far complete the assembly working of speaker module of the present invention.
Embodiment two:
As it is shown in figure 5, present embodiment is essentially identical with embodiment one, its difference is:
Convex edge 21 is arranged at monomer shell 22b and is provided with annular in one end of vibrational system, fore shell 10b
Boss portion 12b, the front end face of convex edge 21 is combined with the end face seal of boss portion 12b, convex edge 21 and monomer
Shell 22b is structure as a whole.
In the present embodiment, monomer shell 22b is cabinet；Monomer protecgulum 24a can be plastics protecgulum, also
It can be metal bezel.
Embodiment three:
As shown in Figure 6, present embodiment is essentially identical with embodiment one, and its difference is:
Convex edge 21 is arranged on monomer protecgulum 24b, the front end face of convex edge 21 and monomer protecgulum 24b relative to
End face bottom fore shell 10c, the front end face of convex edge 21 is combined with the sealed bottom of fore shell 10c, convex edge
21 are structure as a whole with monomer protecgulum 24b.
In the present embodiment, monomer shell 22c is cabinet；Monomer protecgulum 24b is plastics protecgulum.This enforcement
In example, the structure of fore shell 10c is the simplest, it is easy to processing, and the volume of the rear operatic tunes is bigger, and acoustical behavior is more
High.
The implementation of the present invention is not limited to above-mentioned three kinds, and the periphery that convex edge can be located at loudspeaker monomer is any
Position.
Fore shell defined in the present invention and back cover, be the definition that those skilled in the art are usual, to raise one's voice
Device module is front towards the side of audience, after with the side of speaker module audience being dorsad, and fore shell and back cover
Definition only represent a relative position relation therebetween, do not represent absolute positional relation therebetween.
The invention main points of the present invention are to seal with fore shell with the convex edge of loudspeaker monomer periphery, reach isolation
The front operatic tunes of speaker module and the purpose of the rear operatic tunes.Therefore, no matter convex edge is located at the assorted of loudspeaker monomer periphery
Position, the most no matter convex edge is any structure, as long as be provided with projective structure at loudspeaker monomer periphery, and
The technical scheme realizing completely cutting off the forward and backward operatic tunes by this projective structure and the sealing of module fore shell each falls within this
Bright protection domain.
The present invention is not limited to above-mentioned specific embodiment, and those of ordinary skill in the art is from above-mentioned design
Set out, without performing creative labour, done all conversion, all fall within protection scope of the present invention it
In.
Claims (8)
1. speaker module, including the fore shell being combined as a whole and back cover, the mould that described fore shell and back cover surround
Group inner chamber contains loudspeaker monomer, it is characterised in that the periphery of described loudspeaker monomer is provided with to described
The cyclic convex edge extended outside loudspeaker monomer, an end face of described convex edge seals with described fore shell and combines,
The end face structure of described convex edge is suitable with the surface texture of the described fore shell at the place that combines；
Described loudspeaker monomer includes monomer shell and the monomer protecgulum combined, described monomer shell and
Vibrational system and magnetic circuit system is contained in the cavity that monomer protecgulum surrounds；
Described convex edge is arranged on described monomer shell or described monomer protecgulum.
Speaker module the most according to claim 1, it is characterised in that define described convex edge relative to
The end face of the bottom of described fore shell is front end face, and the front end face of described convex edge seals with described fore shell and combines.
Speaker module the most according to claim 2, it is characterised in that described convex edge is arranged at described
Monomer shell, away from one end of described vibrational system, is provided with the boss portion of annular, described convex edge in described fore shell
Front end face be combined with the end face seal of described boss portion.
Speaker module the most according to claim 2, it is characterised in that described convex edge is arranged at described
Monomer shell is provided with the boss portion of annular, described convex edge in one end of described vibrational system, described fore shell
Front end face be combined with the end face seal of described boss portion.
5. according to the speaker module described in claim 3 or 4, it is characterised in that described convex edge is with described
Monomer shell is structure as a whole.
Speaker module the most according to claim 2, it is characterised in that described convex edge is arranged at described
On monomer protecgulum, the front end face of described convex edge and the end face of described monomer protecgulum, the front end of described convex edge
Face is combined with the sealed bottom of described fore shell.
Speaker module the most according to claim 6, it is characterised in that described convex edge and described monomer
Protecgulum is structure as a whole.
Speaker module the most according to claim 1, it is characterised in that the longitudinal profile of described convex edge
Structure is square, trapezoidal or triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310320228.4A CN103354629B (en) | 2013-07-26 | 2013-07-26 | Speaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310320228.4A CN103354629B (en) | 2013-07-26 | 2013-07-26 | Speaker module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103354629A CN103354629A (en) | 2013-10-16 |
| CN103354629B true CN103354629B (en) | 2016-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310320228.4A Active CN103354629B (en) | 2013-07-26 | 2013-07-26 | Speaker module |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796817B (en) | 2015-05-06 | 2018-09-18 | 歌尔股份有限公司 | Loud speaker module |
| CN204733358U (en) | 2015-07-01 | 2015-10-28 | 歌尔声学股份有限公司 | Microspeaker |
| CN107071682B (en) * | 2017-05-25 | 2023-02-28 | 深圳市泰衡诺科技有限公司 | Loudspeaker testing device |
| CN107896354B (en) * | 2017-12-26 | 2024-02-06 | 歌尔科技有限公司 | Speaker module and earphone device with same |
| CN113786028A (en) * | 2021-08-30 | 2021-12-14 | 航宇救生装备有限公司 | Communication generalization method for pilot helmet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202085292U (en) * | 2011-03-07 | 2011-12-21 | 海能达通信股份有限公司 | Audio cavity device |
| CN202634637U (en) * | 2012-04-25 | 2012-12-26 | 深圳天珑移动技术股份有限公司 | Horn assembly and electronic equipment |
| CN103209373A (en) * | 2013-04-16 | 2013-07-17 | 歌尔声学股份有限公司 | Speaker module and production method thereof |
| CN203368723U (en) * | 2013-07-26 | 2013-12-25 | 歌尔声学股份有限公司 | Loudspeaker module |
-
2013
- 2013-07-26 CN CN201310320228.4A patent/CN103354629B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202085292U (en) * | 2011-03-07 | 2011-12-21 | 海能达通信股份有限公司 | Audio cavity device |
| CN202634637U (en) * | 2012-04-25 | 2012-12-26 | 深圳天珑移动技术股份有限公司 | Horn assembly and electronic equipment |
| CN103209373A (en) * | 2013-04-16 | 2013-07-17 | 歌尔声学股份有限公司 | Speaker module and production method thereof |
| CN203368723U (en) * | 2013-07-26 | 2013-12-25 | 歌尔声学股份有限公司 | Loudspeaker module |
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| Publication number | Publication date |
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| CN103354629A (en) | 2013-10-16 |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
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