CN203466959U - Loudspeaker module group - Google Patents
Loudspeaker module group Download PDFInfo
- Publication number
- CN203466959U CN203466959U CN201320580749.9U CN201320580749U CN203466959U CN 203466959 U CN203466959 U CN 203466959U CN 201320580749 U CN201320580749 U CN 201320580749U CN 203466959 U CN203466959 U CN 203466959U
- Authority
- CN
- China
- Prior art keywords
- module
- sound hole
- shell
- out sound
- loud speaker
- 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.)
- Expired - Fee Related
Links
- 239000000178 monomer Substances 0.000 claims description 36
- 238000013016 damping Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 20
- 230000000694 effects Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The utility model, which relates to the technical field of the electroacoustic product, discloses a loudspeaker module group comprising a module group housing. A single loudspeaker body is accommodated in the module group housing; and a sound discharge hole for adjusting air pressure in the module group is arranged in the module group housing. A rear acoustic cavity is formed between the single loudspeaker body and the housing; and the sound discharge hole is arranged at the position, corresponding to that of the rear acoustic cavity, of the housing. The sound discharge hole has a tapered structure; and calibers, arranged at the two sides of the housing, of the sound discharge hole have different dimensions. With the loudspeaker module group, on the condition of the limit space, the single-side vibration space can be saved and the requirement of miniaturization development of the loudspeaker module group can be met. Moreover, no noise is cased; the acoustic performance is high; the heat radiation performance is good; and the service life is long.
Description
Technical field
The utility model relates to electro-acoustic product technical field, particularly a kind of loud speaker module.
Background technology
Loud speaker module is the important acoustic element of portable electric appts, and it comprises shell, contains loudspeaker monomer in shell, is formed with the rear operatic tunes between loudspeaker monomer and shell, and the rear operatic tunes is the space of loudspeaker monomer vibrating diaphragm rear side.In order to extend the useful life of loud speaker module and the acoustical behavior of raising loud speaker module; technical staff conventionally can be provided with one and let out sound hole on module shell; let out the exchange that sound hole can keep the inside and outside air-flow of module, the air pressure of balance module inner chamber also plays the effect of heat radiation simultaneously.
The sound pore structure of letting out of the prior art is cylindrical structural, continuous miniaturization along with loud speaker module, letting out sound hole is subject to the restriction in loud speaker module space to become more elongated, this kind of slim-lined construction let out the exchange that the inside and outside air-flow of module can not be effectively carried out in sound hole, cause module internal air pressure unbalanced, make the vibrating diaphragm vibration displacement of loudspeaker monomer unbalanced.The maximum displacement of vibrating diaphragm vibration is lower upper symmetry under normal circumstances, therefore can make the space symmetr up and down of vibrating diaphragm when deisgn product, but when the vibration displacement of vibrating diaphragm is unbalanced, the vibration displacement of vibrating diaphragm one side can be larger, and the vibration displacement of opposite side can be less.In the larger side of vibrating diaphragm vibration displacement, vibrating diaphragm can bump with other parts, makes loud speaker module produce noise, for fear of vibrating diaphragm and other parts, bumps and just need to increase oscillation space, can not meet the miniaturization developing direction of loud speaker module; In the less side of vibrating diaphragm vibration displacement, will cause the waste of oscillation space.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of loud speaker module, and this loud speaker module vibrating diaphragm vibration displacement is balanced, can not produce noise.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of loud speaker module, comprise module shell, in described module shell, contain loudspeaker monomer, described module shell is provided with lets out sound hole for what regulate module internal gas pressure, the operatic tunes after forming between described loudspeaker monomer and described shell, the described sound hole of letting out is arranged on described shell the position corresponding to the described rear operatic tunes, described in to let out sound hole be pyramidal structure, described in let out sound hole to be positioned at the caliber size of described shell both sides different.
As a kind of execution mode, described in let out sound hole the little one end of bore be positioned at the outside of described shell, described in let out sound hole the large one end of bore be positioned at the inner side of described shell.
As another kind of execution mode, described in let out sound hole the little one end of bore be positioned at the inner side of described shell, described in let out sound hole the large one end of bore be positioned at the outside of described shell.
Wherein, described module shell comprises module upper casing and the module lower casing combining, and between described loudspeaker monomer and described module lower casing, forms the described rear operatic tunes, described in let out sound hole and be arranged on described module lower casing.
Wherein, described module shell comprises module upper casing, module mesochite and the module lower casing combining, and between described loudspeaker monomer and described module lower casing, forms the described rear operatic tunes, described in let out sound hole and be arranged on described module lower casing.
Wherein, described in, letting out sound hole is conical structure.
Wherein, described in, let out place, sound hole and be pasted with damping screen.
Adopted after technique scheme, the beneficial effects of the utility model are:
In shell due to the utility model loud speaker module, contain loudspeaker monomer, what module shell was provided with taper lets out sound hole.When the air-flow inside and outside loud speaker module exchanges, pyramidal structure let out the flow resistance that sound hole can regulate air-flow, air-flow is less than mobile resistance from the larger one end of the bore of pyramidal structure in the other direction to the mobile resistance in the less one end of bore, can make the air pressure of module internal and the air pressure of module outside inconsistent, thereby the vibration displacement ratio of the vibrating diaphragm of control loudspeaker monomer, makes the vibration displacement of vibrating diaphragm balanced.If when the displacement that vibrating diaphragm upwards vibrates is large, the less one end of the bore of letting out sound hole can be arranged on to the outside of module shell, one end that bore is larger is arranged on the inner side of module shell, reduces the air pressure of module inner chamber, makes the vibration displacement of vibrating diaphragm balanced; If when the displacement of vibrating diaphragm vibration is downwards large, the less one end of the bore of letting out sound hole can be arranged on to the inner side of module shell, one end that bore is larger is arranged on the outside of module shell, increases the air pressure of module inner chamber, makes the vibration displacement of vibrating diaphragm balanced.Visible, the utility model, under the condition of limited space, can be saved monolateral oscillation space, meets the requirement of loud speaker module miniaturization development; And can not produce noise, acoustical behavior is high.
Accompanying drawing explanation
Fig. 1 is the stereo decomposing structural representation of the utility model loud speaker module embodiment mono-;
Fig. 2 is the constitutional diagram of Fig. 1;
Fig. 3 is the A-A line cutaway view Amplified image of Fig. 2;
Fig. 4 is the stereo decomposing structural representation of the loudspeaker monomer of the utility model loud speaker module embodiment mono-;
Fig. 5 is the cross-sectional view of the utility model loud speaker module embodiment bis-;
In figure: 10, module upper casing, 20a, module lower casing, 20b, module lower casing, 22a, let out sound hole, 22b, let out sound hole, 30, loudspeaker monomer, 32, monomer protecgulum, 34, monomer shell, 360, vibrating diaphragm, 362, voice coil loudspeaker voice coil, 364, ball top, 380, interior washer, 382, outer washer, 384, internal magnet, 386, external magnet, 388, basin frame, 40, damping screen.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.
Embodiment mono-:
As shown in Figure 1, a kind of loud speaker module, comprise the module upper casing 10 and the module lower casing 20a that combine, in the space that module upper casing 10 and module lower casing 20a surround, contain loudspeaker monomer 30, between loudspeaker monomer 30 and module lower casing 20a, be formed with the rear operatic tunes.After module lower casing 20a is upper corresponding, the position of the operatic tunes is provided with and lets out sound hole 22a for what regulate module inner chamber air pressure.
As shown in Fig. 2 and Fig. 3 are common, definition module lower casing 20a is inner side near a side of loudspeaker monomer 30, opposite side is outside, letting out sound hole 22a is conical structure, letting out sound hole 22a, to be positioned at one end bore in outside of module lower casing 20a less, and its one end bore of inner side that is positioned at module lower casing 20a is larger.Let out one end that sound hole 22a is positioned at module lower casing 22a outside and be pasted with damping screen 40.
As shown in Figure 4, loudspeaker monomer 30 comprises monomer protecgulum 32 and the monomer shell 34 being combined as a whole, and contains the moving system of vibration and magnetic circuit system in the space that monomer protecgulum 32 and monomer shell 34 surround.Vibrational system comprises that edge part is fixed on the vibrating diaphragm 360 between monomer protecgulum 32 and monomer shell 34, and a vibrating diaphragm 360 dorsad side of monomer protecgulum 32 is fixed with voice coil loudspeaker voice coil 362, and the middle part of the opposite side of vibrating diaphragm 360 is fixed with ball top 364.Magnetic circuit system comprises the basin frame 388 with 34 combinations of monomer shell, on basin frame 388, be provided with successively internal magnet 384 and interior washer 380, the both sides of internal magnet are respectively equipped with the outer washer 382 that is provided with respectively a bar shaped on 386, two blocks of external magnets 386 of external magnet of a bar shaped.Internal magnet 384 and interior washer 380 form internal magnetic circuit, and external magnet 386 and outer washer 382 form external magnetic circuit, between internal magnetic circuit and external magnetic circuit, leave magnetic gap, and the end of voice coil loudspeaker voice coil 362 is positioned at magnetic gap.
Conical structure is elected in the sound hole of letting out in the present embodiment as, because be easier to realize adding man-hour conical structure ratio, for preferred version of the present utility model, in practical application, other pyramidal structure can obtain the effect the same with conical structure too, as triangular pyramidal, square taper or other some polygon tapers.
The operation principle of the present embodiment loud speaker module is as follows:
Voice coil loudspeaker voice coil 362 is done the reciprocating cutting magnetic line of force according to the size and Orientation of the electric current by its coil and is moved in magnetic gap, and drives vibrating diaphragm 360 vibrations, and vibrating diaphragm 360 is instigated air and sounded, thereby completes the conversion of electroacoustic.When vibrating diaphragm 360 vibration, the air pressure of module inner chamber can change, and then carries out air-flow exchange by letting out sound hole 22a and the external world.In the present embodiment, let out less one end of 22a bore, sound hole and be positioned at the outside of module lower casing 20a, one end that bore is larger is positioned at the inner side of module lower casing 20a, air-flow is little from the module inner chamber resistance mobile to the external world, air-flow is large to the mobile resistance of module inner chamber from the external world, thereby the air pressure that makes module inner chamber is less than the air pressure in the module external world, can reduce vibrating diaphragm 360 to the vibration displacement of module upper casing 10 directions, the suitable vibrating diaphragm of the visible present embodiment large loud speaker module of vibration displacement that makes progress, vibration displacement that can balanced vibrating diaphragm 360, saved the space between vibrating diaphragm 360 and monomer protecgulum 32, avoided vibrating diaphragm 360 and monomer protecgulum 32 to bump, eliminated noise, improved the performance of loud speaker module.
Separately, the structure of the loudspeaker monomer in the utility model is not limited to said structure, the structure of the loudspeaker monomer of the present embodiment introduction is just in order to draw vibrating diaphragm, make the personnel that read this specification can understand more intuitively operation principle of the present utility model, the loud speaker module that other any structure of loudspeaker monomer is installed in practical application all can adopt the technical solution of the utility model to realize the technique effect of vibrating diaphragm vibration displacement equilibrium, the structure of loudspeaker monomer is not invention main points of the present utility model, therefore do not describe in detail one by one at this.
Embodiment bis-:
As shown in Figure 5, present embodiment and embodiment mono-are basic identical, and its difference is:
Letting out sound hole 22b, to be positioned at one end bore of inner side of module lower casing 20b less, and letting out sound hole 22b, to be positioned at one end bore in outside of module lower casing 20b larger.
Present embodiment, air-flow is large from the module inner chamber resistance mobile to the external world, little to the mobile resistance of module inner chamber from the external world, thereby makes the air pressure in module be greater than ambient pressure, can reduce the vibrating diaphragm displacement of vibration downwards, the loud speaker module that the downward vibration displacement of suitable vibrating diaphragm is large.
In the utility model, the definition of module upper casing and module lower casing is the habitual call of this area, and the side that loud speaker module sound sends is upper, under opposite side is.Module upper casing and module lower casing only represent the relative position relation between the two, do not represent the absolute positional relation between the two.
Module shell of the present utility model is two shell structures, to let out sound hole be that the technical scheme of taper is equally applicable in three shells or other shell mechanism to the utility model in actual applications, the shell of three shell modules comprises module upper casing, module mesochite and the module lower casing combining, and lets out sound hole and is arranged on module lower casing.No matter be several shell structures, letting out sound hole is all located on the lower casing of loud speaker module conventionally, those skilled in the art do not need to pay performing creative labour according to the introduction of this specification and just the technical program can be transplanted in the loud speaker module of other structure, therefore be not described in detail in this.
The utility model is not limited to above-mentioned concrete execution mode, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done, within all dropping on protection range of the present utility model.
Claims (7)
1. loud speaker module, comprise module shell, in described module shell, contain loudspeaker monomer, described module shell is provided with lets out sound hole for what regulate module internal gas pressure, the operatic tunes after forming between described loudspeaker monomer and described shell, described in let out sound hole and be arranged on described shell corresponding to the position of the described rear operatic tunes, it is characterized in that, the described sound hole of letting out is pyramidal structure, described in let out sound hole to be positioned at the caliber size of described shell both sides different.
2. loud speaker module according to claim 1, is characterized in that, described in let out sound hole the little one end of bore be positioned at the outside of described shell, described in let out sound hole the large one end of bore be positioned at the inner side of described shell.
3. loud speaker module according to claim 1, is characterized in that, described in let out sound hole the little one end of bore be positioned at the inner side of described shell, described in let out sound hole the large one end of bore be positioned at the outside of described shell.
4. according to the loud speaker module described in claim 2 or 3, it is characterized in that, described module shell comprises module upper casing and the module lower casing combining, and between described loudspeaker monomer and described module lower casing, forms the described rear operatic tunes, described in let out sound hole and be arranged on described module lower casing.
5. according to the loud speaker module described in claim 2 or 3, it is characterized in that, described module shell comprises module upper casing, module mesochite and the module lower casing combining, between described loudspeaker monomer and described module lower casing, form the described rear operatic tunes, described in let out sound hole and be arranged on described module lower casing.
6. loud speaker module according to claim 1, is characterized in that, described in to let out sound hole be conical structure.
7. loud speaker module according to claim 1, is characterized in that, described in let out sound hole place and be pasted with damping screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320580749.9U CN203466959U (en) | 2013-09-18 | 2013-09-18 | Loudspeaker module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320580749.9U CN203466959U (en) | 2013-09-18 | 2013-09-18 | Loudspeaker module group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203466959U true CN203466959U (en) | 2014-03-05 |
Family
ID=50179295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320580749.9U Expired - Fee Related CN203466959U (en) | 2013-09-18 | 2013-09-18 | Loudspeaker module group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203466959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458337A (en) * | 2013-09-18 | 2013-12-18 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN104602168A (en) * | 2014-12-31 | 2015-05-06 | 宇龙计算机通信科技(深圳)有限公司 | Micro loudspeaker module and design method thereof |
-
2013
- 2013-09-18 CN CN201320580749.9U patent/CN203466959U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458337A (en) * | 2013-09-18 | 2013-12-18 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN103458337B (en) * | 2013-09-18 | 2017-01-11 | 歌尔股份有限公司 | Loudspeaker module |
| CN104602168A (en) * | 2014-12-31 | 2015-05-06 | 宇龙计算机通信科技(深圳)有限公司 | Micro loudspeaker module and design method thereof |
| CN104602168B (en) * | 2014-12-31 | 2018-01-09 | 宇龙计算机通信科技(深圳)有限公司 | A kind of Microspeaker module and its design method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204993827U (en) | Loudspeaker module | |
| CN203574855U (en) | Loudspeaker module | |
| CN110166910A (en) | Loudspeaker | |
| CN204350282U (en) | Acoustic equipment | |
| CN205051863U (en) | Long stroke moving coil loudspeaker | |
| CN201682603U (en) | Earphone | |
| CN105592389A (en) | Loudspeaker module | |
| CN203708465U (en) | Loudspeaker module group | |
| CN203466959U (en) | Loudspeaker module group | |
| CN203912178U (en) | Loudspeaker module | |
| CN103458337A (en) | Loudspeaker module | |
| CN203984670U (en) | Microspeaker | |
| CN204442689U (en) | Mems microphone | |
| CN203574851U (en) | Loudspeaker module | |
| CN204598304U (en) | Vibration component and be provided with the Microspeaker of this vibration component | |
| CN203504730U (en) | Symmetrical sound box | |
| CN204559875U (en) | A kind of loadspeaker structure | |
| CN204836566U (en) | Multi -functional speaker module and use its electron terminal equipment | |
| CN204442674U (en) | A kind of loud speaker module | |
| CN104053102A (en) | Loudspeaker module | |
| CN103763655A (en) | Symmetrical sound box and manufacturing method thereof | |
| CN201967122U (en) | Magnetic circuit system and speaker applying same | |
| CN201928429U (en) | Loudspeaker structure | |
| CN201967101U (en) | Double-suspension loudspeaker | |
| CN204498372U (en) | A kind of small size speaker motor assembly and apply the dynamic iron unit of this motor sub-assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20190918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |