CN204291356U - A kind of loud speaker module - Google Patents
A kind of loud speaker module Download PDFInfo
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- CN204291356U CN204291356U CN201420835015.5U CN201420835015U CN204291356U CN 204291356 U CN204291356 U CN 204291356U CN 201420835015 U CN201420835015 U CN 201420835015U CN 204291356 U CN204291356 U CN 204291356U
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- loud speaker
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- speaking
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Abstract
The utility model discloses a kind of loud speaker module, comprise module shell, loudspeaker monomer is contained in described module shell, described module shell comprises the first housing and the second housing, described first housing and described second housing surround module inner chamber, described module inner chamber is divided into the front operatic tunes and the rear operatic tunes by described loudspeaker monomer, and described module shell is provided with side phonate hole; Described module shell is provided with the passage of speaking be communicated with the described front operatic tunes along the direction of speaking of described side phonate hole, described in speak the width at two ends of passage be greater than described in speak the width at middle part of passage.Loud speaker module of the present utility model, improves high-frequency cut-off frequency, improves high frequency Frequency Response, and product acoustical behavior is high.
Description
Technical field
The utility model relates to electro-acoustic product technical field, specifically, relates to a kind of loud speaker module.
Background technology
Loud speaker module is the important acoustic element of portable electric appts, for completing the conversion between the signal of telecommunication and voice signal, is a kind of energy conversion device.
Along with portable electric appts is constantly to light, thin, small and exquisite future development, the loud speaker module as portable electric appts acoustic element is also thereupon continuous to light, thin, small and exquisite future development.Such as handset structure is more and more thinner, more and more higher to the acoustic performance requirements of loud speaker module, require that loud speaker module has lower resonance frequency F0 and excellent tonequality, therefore, increasing loud speaker module design is that ante-chamber side goes out acoustic form by technical staff.But side goes out the multinomial acoustical behavior that the front operatic tunes of the loud speaker module of acoustic form, the shape of passage of speaking and size directly affect loud speaker module, owing to speaking the restriction of size in side, that passage of speaking can not be done is too large, make the high-frequency cut-off frequency of loud speaker module little, cause that the high frequency performance of loud speaker module is poor, distortion is high, lower tone.Have a strong impact on the acoustical behavior of loud speaker module.
Utility model content
Technical problem to be solved in the utility model is: provide the loud speaker module that a kind of side goes out acoustic form, and this loud speaker module improves high-frequency cut-off frequency, improves high frequency Frequency Response, and product acoustical behavior is high.
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, loudspeaker monomer is contained in described module shell, described module shell comprises the first housing and the second housing, described first housing and described second housing surround module inner chamber, described module inner chamber is divided into the front operatic tunes and the rear operatic tunes by described loudspeaker monomer, and described module shell is provided with side phonate hole; It is characterized in that: described module shell is provided with the passage of speaking be communicated with the described front operatic tunes along the direction of speaking of described side phonate hole, described in speak the width at two ends of passage be greater than described in speak the width at middle part of passage.
Preferably, the middle part indent of passage of speaking described in is curved.
Preferably, the both sides described module shell being positioned at the direction of speaking of described side phonate hole are respectively equipped with the block body of arc, above described block body, phonate hole place, corresponding described side is covered with cover plate, passage of speaking described in described module shell, described block body and described cover plate surround jointly; The shape of described block body is consistent with the middle part concave shape of described passage of speaking.
Preferably, described block body is the arc platform of hollow, and the hollow cavity of described arc platform is communicated with the described rear operatic tunes.
Preferably, described arc platform is located on described first housing, and is integrated injection structure with described first housing.
Preferably, described cover plate is PET sheet.
Preferably, speak described in passage and be provided with the sound absorbing layer consistent with the shape of described passage of speaking.
Preferably, described sound absorbing layer comprises the first sound-absorbing material layer and second sound-absorbing material layer of unlike material and/or different-thickness, and described first sound-absorbing material layer and described second sound-absorbing material layer are pasted together by bonding agent.
Preferably, described module shell is positioned at phonate hole place, described side and is provided with locating piece, described sound absorbing layer is just provided with the breach suitable with described locating piece to described locating piece place, and described locating piece is stuck in described breach.
Preferably, described first housing is provided with relief hole, the position of the corresponding described relief hole in outside of described first housing is provided with damping screen.
After have employed technique scheme, the beneficial effects of the utility model are:
Loud speaker module of the present utility model, adopt side to go out acoustic form, module shell is provided with side phonate hole; Described module shell is provided with the passage of speaking be communicated with the described front operatic tunes along the direction of speaking of described side phonate hole, described in speak the width at two ends of passage be greater than described in speak the width at middle part of passage.The speak two ends of passage are wide, middle narrow, make the air flowing of speaking in passage smooth and easy, meet nearly loud speaker end and the large requirement of loud speaker end channel size far away, increase the cut-off frequency of loud speaker module, improve sensitivity, reduce distortion, make the acoustical behavior of loud speaker module high.
Owing to being provided with sound absorbing layer in passage of speaking.The shape of sound absorbing layer is consistent with the shape of described passage of speaking.The sound-absorbing material of unlike material and/or different-thickness is combined by bonding agent, is combined into desirable composite type sound-absorbing material.The setting of sound absorbing layer in passage of speaking improves the high-frequency cut-off frequency Fh of loud speaker module effectively, improves high frequency Frequency Response, reduces high-frequency harmonic distortion, improve module tonequality, further increase the acoustical behavior of loud speaker module.
Due to the arc platform that block body is hollow, the hollow cavity of arc platform is communicated with the rear operatic tunes.The arc platform of hollow, using the rear operatic tunes of narrow place, the middle part volume of the passage of speaking of loud speaker module as loud speaker module, add the rear operatic tunes volume of loud speaker module, thus reduce the resonance frequency F0 of loud speaker module, further improve the acoustical behavior of loud speaker module.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of loud speaker module of the present utility model;
Fig. 2 is the plan structure schematic diagram of loud speaker module of the present utility model;
Fig. 3 is the sectional structure schematic diagram of loud speaker module of the present utility model;
Fig. 4 is the decomposition texture schematic diagram of the sound absorbing layer in Fig. 3;
Fig. 5 is the decomposition texture schematic diagram of loud speaker module of the present utility model;
In figure: 1, loudspeaker monomer; 2, the first housing; 3, the second housing; 4, arc platform; 5, side phonate hole; 51, locating piece; 6, sound absorbing layer; 61, the first sound-absorbing material layer; 62, the second sound-absorbing material layer; 63, bonding agent; 64, breach; 7, PET sheet; 8, relief hole; 9, damping screen; 10, FPCB; 11, Air Filter; 12, to speak passage.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 is the main TV structure schematic diagram of loud speaker module of the present utility model; Fig. 2 is the plan structure schematic diagram of loud speaker module of the present utility model; Fig. 3 is the sectional structure schematic diagram of loud speaker module of the present utility model; Fig. 4 is the decomposition texture schematic diagram of the sound absorbing layer in Fig. 3; Fig. 5 is the decomposition texture schematic diagram of loud speaker module of the present utility model.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4 and Fig. 5, a kind of loud speaker module, comprise module shell, loudspeaker monomer 1 is contained in module shell, module shell comprises the first housing 2 and the second housing 3, first housing 2 and the second housing 3 surround module inner chamber, and module inner chamber is divided into the front operatic tunes and the rear operatic tunes by loudspeaker monomer 1, and the first housing 2 is provided with side phonate hole 5; The both sides first housing 2 being positioned at the direction of speaking of side phonate hole 5 are respectively equipped with block body, above block body, respective side phonate hole 5 place is covered with cover plate, first housing 2, block body and cover plate surround the passage 12 of speaking of loud speaker module jointly, passage 12 of speaking is communicated with the front operatic tunes, and the width at the two ends of passage 12 of speaking is greater than the width at the middle part of passage 12 of speaking.Loudspeaker monomer 1 is electrically connected with loud speaker module external circuit by FPCB10.FPCB is called Flexible Printed CircuitBoard, be called for short FPCB or FPC, being flexible printed circuit board, is a kind of printed circuit board (PCB) with figure utilizing flexible parent metal to make, be made up of insulating substrate and conductive layer, between insulating substrate and conductive layer, can binding agent be had.Certainly, side phonate hole 5 and passage 12 of speaking do not limit to and are located on the first housing 2.
In the present embodiment, block body is arc platform 4, first housing 2 of hollow, arc platform 4 and the second housing 3 surround the rear operatic tunes jointly, and the hollow cavity of arc platform 4 is communicated with the rear operatic tunes.Wherein, arc platform 4 and the first housing 2 adopt integrated injection molding structure.Cover plate is PET sheet 7.Wherein, PET sheet 7 is a kind of plastic sheets, and PET is the abbreviation of English Polyethylene terephthalate, is called for short PET or PETP.Chinese is meant to: poly terephthalic acid class plastics, mainly comprises polyethylene terephthalate PET and polybutylene terephthalate PBT.PETG is commonly called as polyester resin again.It is the condensation polymer of terephthalic acid (TPA) and ethylene glycol, is referred to as thermoplastic polyester together with PBT, or saturated polyester.
Speak passage 12 middle part in be recessed into the arc consistent with the shape of arc platform 4.
Definition passage 12 of speaking is nearly loud speaker end near the end of loudspeaker monomer 1, and passage 12 of speaking is loud speaker end far away away from the end of loudspeaker monomer 1, and the loud speaker end far away of passage 12 of speaking is stifled is provided with Air Filter 11.
The loud speaker module of the present embodiment, adopt side to go out acoustic form, the first housing 2, arc platform 4 and PET sheet 7 surround the passage 12 of speaking of loud speaker module jointly, and the width at the two ends of passage 12 of speaking is greater than the width at the middle part of passage 12 of speaking.The speak two ends of passage 12 are wide, middle narrow, make the air flowing of speaking in passage 12 smooth and easy, meet nearly loud speaker end and the large requirement of loud speaker end channel size far away, increase the cut-off frequency of loud speaker module, improve sensitivity, reduce distortion, make the acoustical behavior of loud speaker module high.
In the present embodiment, be provided with sound absorbing layer 6 in passage 12 of speaking, the shape of sound absorbing layer 6 is consistent with the shape of passage 12 of speaking.Side phonate hole 5 place of the second housing 3 is provided with locating piece 51, and sound absorbing layer 6 is just provided with the breach 64 suitable with locating piece 51 to locating piece 51 place, and locating piece 51 snaps in the breach 64 of sound absorbing layer 6, and sound absorbing layer 6 is located.Sound absorbing layer 6 is comprised the first sound-absorbing material layer 61 of unlike material and/or different-thickness and the second sound-absorbing material layer 62, first sound-absorbing material layer 61 and the second sound-absorbing material layer 62 and is pasted together by bonding agent 63.The sound-absorbing material of unlike material, different-thickness is combined by bonding agent 63, is combined into desirable composite type sound-absorbing material.The setting of the sound absorbing layer 6 of speaking in passage 12 improves the high-frequency cut-off frequency Fh of loud speaker module effectively, improves high frequency Frequency Response, reduces high-frequency harmonic distortion, improves module tonequality, improve the acoustical behavior of loud speaker module.
In the present embodiment, the first housing 2 is provided with relief hole 8, the position of the corresponding relief hole 8 in outside of the first housing 2 is provided with damping screen 9.
Due to block body be arc platform 4, first housing 2 of hollow, arc platform 4 and the second housing 3 surround the rear operatic tunes jointly, the hollow cavity of arc platform 4 is communicated with the rear operatic tunes.The arc platform 4 of hollow, using the rear operatic tunes of narrow place, the middle part volume of the passage 12 of speaking of loud speaker module as loud speaker module, add the rear operatic tunes volume of loud speaker module, thus reduce the resonance frequency F0 of loud speaker module, further improve the acoustical behavior of loud speaker module.
The first housing 2 related in the utility model and the name of the second housing 3 are only be difference technical characteristic, do not represent position relationship therebetween and erection sequence etc.
This specification has only carried out detailed elaboration for the loud speaker module shown by accompanying drawing to inventive concept of the present utility model, this does not represent the loud speaker module that protection range of the present utility model is just only limitted to this kind of structure, the passage two ends that go out in side in reality in the loud speaker module of acoustic form to make to speak are wide, middle narrow structure is to increase the cut-off frequency of loud speaker module, the mode improving the acoustical behavior of loud speaker module can be applied on the loud speaker module of any one structure, therefore, the loud speaker module of other structure, as long as it is wide that the passage of speaking that the side on the housing of loud speaker module goes out acoustic form takes two ends, middle narrow structure, all fall in protection range of the present utility model.
The above is the citing of the utility model preferred forms, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection range of the present utility model is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present utility model, also within protection range of the present utility model.
Claims (10)
1. a loud speaker module, comprise module shell, loudspeaker monomer is contained in described module shell, described module shell comprises the first housing and the second housing, described first housing and described second housing surround module inner chamber, described module inner chamber is divided into the front operatic tunes and the rear operatic tunes by described loudspeaker monomer, and described module shell is provided with side phonate hole; It is characterized in that: described module shell is provided with the passage of speaking be communicated with the described front operatic tunes along the direction of speaking of described side phonate hole, described in speak the width at two ends of passage be greater than described in speak the width at middle part of passage.
2. loud speaker module according to claim 1, is characterized in that: described in the speak middle part indent of passage curved.
3. loud speaker module according to claim 2, it is characterized in that: the both sides described module shell being positioned at the direction of speaking of described side phonate hole are respectively equipped with the block body of arc, above described block body, phonate hole place, corresponding described side is covered with cover plate, passage of speaking described in described module shell, described block body and described cover plate surround jointly; The shape of described block body is consistent with the middle part concave shape of described passage of speaking.
4. loud speaker module according to claim 3, is characterized in that: described block body is the arc platform of hollow, and the hollow cavity of described arc platform is communicated with the described rear operatic tunes.
5. loud speaker module according to claim 4, is characterized in that: described arc platform is located on described first housing, and is integrated injection structure with described first housing.
6. loud speaker module according to claim 3, is characterized in that: described cover plate is PET sheet.
7. the loud speaker module according to any one of claim 1 to 6, is characterized in that: described in speak in passage and be provided with the sound absorbing layer consistent with the shape of described passage of speaking.
8. loud speaker module according to claim 7, it is characterized in that: described sound absorbing layer comprises the first sound-absorbing material layer and second sound-absorbing material layer of unlike material and/or different-thickness, described first sound-absorbing material layer and described second sound-absorbing material layer are pasted together by bonding agent.
9. loud speaker module according to claim 8, it is characterized in that: described module shell is positioned at phonate hole place, described side and is provided with locating piece, described sound absorbing layer is just provided with the breach suitable with described locating piece to described locating piece place, and described locating piece is stuck in described breach.
10. loud speaker module according to claim 9, is characterized in that: described first housing is provided with relief hole, and the position of the corresponding described relief hole in outside of described first housing is provided with damping screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835015.5U CN204291356U (en) | 2014-12-25 | 2014-12-25 | A kind of loud speaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835015.5U CN204291356U (en) | 2014-12-25 | 2014-12-25 | A kind of loud speaker module |
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| Publication Number | Publication Date |
|---|---|
| CN204291356U true CN204291356U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420835015.5U Active CN204291356U (en) | 2014-12-25 | 2014-12-25 | A kind of loud speaker module |
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| CN (1) | CN204291356U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017045262A1 (en) * | 2015-09-15 | 2017-03-23 | 歌尔声学股份有限公司 | Loudspeaker module |
| WO2019205713A1 (en) * | 2018-04-28 | 2019-10-31 | 歌尔股份有限公司 | Loudspeaker module and electronic equipment |
| WO2020134341A1 (en) * | 2018-12-24 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Mobile terminal |
| CN112188356A (en) * | 2019-07-05 | 2021-01-05 | 华为技术有限公司 | Loudspeaker module and electronic equipment |
-
2014
- 2014-12-25 CN CN201420835015.5U patent/CN204291356U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017045262A1 (en) * | 2015-09-15 | 2017-03-23 | 歌尔声学股份有限公司 | Loudspeaker module |
| US10506332B2 (en) | 2015-09-15 | 2019-12-10 | Goertek Inc. | Loudspeaker module |
| WO2019205713A1 (en) * | 2018-04-28 | 2019-10-31 | 歌尔股份有限公司 | Loudspeaker module and electronic equipment |
| WO2020134341A1 (en) * | 2018-12-24 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Mobile terminal |
| CN112188356A (en) * | 2019-07-05 | 2021-01-05 | 华为技术有限公司 | Loudspeaker module and electronic equipment |
| CN112188356B (en) * | 2019-07-05 | 2022-10-14 | 荣耀终端有限公司 | Loudspeaker module and electronic equipment |
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| 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. |