CN203722813U - Loudspeaker module - Google Patents
Loudspeaker module Download PDFInfo
- Publication number
- CN203722813U CN203722813U CN201420063871.3U CN201420063871U CN203722813U CN 203722813 U CN203722813 U CN 203722813U CN 201420063871 U CN201420063871 U CN 201420063871U CN 203722813 U CN203722813 U CN 203722813U
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- China
- Prior art keywords
- voice coil
- housing
- pad
- connecting portion
- operatic tunes
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- Expired - Fee Related
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- 101001045744 Sus scrofa Hepatocyte nuclear factor 1-beta Proteins 0.000 claims abstract 9
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- 230000000694 effects Effects 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a loudspeaker module, which relates to the technical field of electro-acoustic products. The loudspeaker module comprises a shell in which a vibration system and a magnetic circuit system are accommodated. The vibration system includes a vibration diaphragm and a voice coil which are combined together. The vibration diaphragm divides the inner cavity of the module into a front voice cavity and a rear voice cavity. The voice coil is provided with a voice coil lead which is electrically connected with a module external circuit through an electrical connector. The electrical connector is provided with pads used for welding the voice coil lead. The extending direction of the pads is consistent with the wire outgoing direction of the voice coil lead. According to the loudspeaker module, the effective welding area between the pads and the voice coil lead is enabled to be largest in a limited space, thereby effectively ensuring the welding effect and avoiding the risk that the voice coil lead may be broken by spot welding; and meanwhile, a spot welding head can be disposed perpendicular to the voice coil lead to perform forward spot welding in spot welding so that an FPCB coating and the shell around the pads can be protected from damage, and the design space of the pads is effectively saved.
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, it comprises shell, in shell, contain vibrational system and magnetic circuit system, vibrational system comprises the vibrating diaphragm and the voice coil loudspeaker voice coil that combine, voice coil loudspeaker voice coil is provided with the voice coil leads for being electrically connected module external circuit, voice coil leads is normally electrically connected with module external circuit by FPCB (Flexible Printed Circuit Board) or shell fragment, and FPCB or shell fragment are provided with the pad for welding voice coil leads.
Pad on existing FPCB or shell fragment is mostly upright pad, and the outlet of voice coil leads mostly is oblique outlet, between voice coil leads and the sideline of pad, has angle.As shown in Figure 8, between voice coil leads 48 and the sideline of pad 620b, have angle, between pad 620b and voice coil leads 48, the effective area of welding is less, therefore bad below carrying out can producing while welding between pad and voice coil leads:
One, voice coil leads is easily disconnected by point;
Two, need spot welding head along the spot welding of voice coil leads direction, easily make spot welding head exceed pad, thereby point is hindered the shell of FPCB overlay film or pad periphery.
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 is in limited pad design space, and the efficient weld area between pad and voice coil leads is larger.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of loud speaker module, comprises shell, contains vibrational system and magnetic circuit system in described shell, and described vibrational system comprises the vibrating diaphragm and the voice coil loudspeaker voice coil that combine, and module inner chamber is divided into the front operatic tunes and two cavitys of the rear operatic tunes by described vibrating diaphragm; Described voice coil loudspeaker voice coil is provided with voice coil leads, described voice coil leads is electrically connected with module external circuit by electrical connector, described electrical connector is provided with the pad for welding described voice coil leads, and the bearing of trend of described pad is consistent with the outlet direction of described voice coil leads.
Wherein, described pad is square pad, and two limits of described square pad are parallel with described voice coil leads, and another two limits of described square pad are vertical with described voice coil leads.
Wherein, described electrical connector is FPCB, and one end of described FPCB is inserted in the described front operatic tunes by the described rear operatic tunes, and the described FPCB that is positioned at the described front operatic tunes is provided with described pad.
Wherein, described FPCB comprises the front connecting portion that is positioned at the described front operatic tunes and the rear connecting portion that is positioned at the described rear operatic tunes, between described front connecting portion and described rear connecting portion, is provided with for described FPCB is fixed on to the fixed part on described shell; Described pad is arranged on described front connecting portion; Described front connecting portion, described fixed part and described rear connecting portion are structure as a whole.
Wherein, the back side of described front connecting portion and described fixed part is equipped with the stiffening plate for increasing described FPCB mechanical strength.
Wherein, described shell comprises the first housing, the second housing and the 3rd housing that combine successively, and described vibrating diaphragm and described the first housing and described the second housing surround the described front operatic tunes; Described vibrating diaphragm and described the second housing and described the 3rd housing surround the described rear operatic tunes.
Wherein, the inner side of described the second housing is provided with reference column, on described FPCB and described stiffening plate, runs through and is provided with the location hole suitable with described reference column; Described FPCB is fixed on described the second housing by described reference column and described location hole.
Wherein, on the sidewall of described the second housing, the position of corresponding described rear connecting portion is provided with groove, on described the 3rd housing the position of corresponding described groove be provided with one with the suitable retaining wall of described groove, described rear connecting portion is by passing the described rear operatic tunes between the end of described retaining wall and the bottom of described groove.
Wherein, described magnetic circuit system comprises basin frame, on described basin frame, is fixed with successively magnet and washer; Described the 3rd housing is provided with installing hole, and the bottom of described installing hole and described basin frame is suitable.
Wherein, be also provided with for being communicated with leak holes extraneous and the rear operatic tunes on described the 3rd housing, one end that described leak holes is positioned at described the 3rd hull outside is coated with damping screen.
Adopted after technique scheme, the beneficial effects of the utility model are:
Because the voice coil leads of the utility model loud speaker module is electrically connected with module external circuit by electrical connector, electrical connector is provided with the pad for welding voice coil leads, and the bearing of trend of pad is consistent with the outlet direction of voice coil leads.The bearing of trend of pad is consistent with the outlet direction of voice coil leads, ensure between voice coil leads and pad sideline without angle, can effectively utilize the design space of pad, in effective space, make the efficient weld area maximum between pad and voice coil leads, thereby can effectively ensure welding effect, avoid voice coil leads to be put disconnected hidden danger; Simultaneously spot welding head in the time of spot welding vertically voice coil leads do forward spot welding, can protect the shell of FPCB overlay film and pad periphery injury-free, effectively saved the design space of pad.
Brief description of the drawings
Fig. 1 is the stereo decomposing structural representation of the utility model loud speaker module;
Fig. 2 is the constitutional diagram of Fig. 1;
Fig. 3 is that Fig. 2 removes the structural representation after the first housing;
Fig. 4 is the rearview of Fig. 2;
Fig. 5 is that Fig. 4 removes the structural representation after the 3rd housing;
Fig. 6 is the cross-sectional view of the utility model loud speaker module;
Fig. 7 is the structural representation of the FPCB in the utility model loud speaker module;
Fig. 8 is the structural representation of pad and voice coil leads in background technology;
In figure: 10, the first housing, 20, the second housing, 22, reference column, 24, groove, 30, the 3rd housing, 32, leak holes, 34, installing hole, 36, retaining wall, 40, vibrational system, 42, vibrating diaphragm, 44, ball top, 46, voice coil loudspeaker voice coil, 48, voice coil leads, 50, magnetic circuit system, 52, basin frame, 540, internal magnet, 542, external magnet, 560, interior washer, 562, outer washer, 60, FPCB, 62, front connecting portion, 620a, pad, 620b, pad, 64, fixed part, 640, location hole, 66, rear connecting portion, 70, stiffening plate, 80, damping screen, 90, the front operatic tunes, 92, the rear operatic tunes.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.
As shown in Figure 1, Figure 2, Fig. 3 and Fig. 6 common shown in, a kind of loud speaker module, comprise in the space that the first housing 10, the second housing 20 and the 3rd housing 30, the first housings 10, the second housing 20 and the 3rd housing 30 that combine successively surround and contain vibrational system 40 and magnetic circuit system 50.Vibrational system 40 comprises that edge is fixed on the vibrating diaphragm 42 on the second housing 20, and vibrating diaphragm 42 is provided with ball top 44 near the middle part of the first housing 10 1 sides, and the opposite side of vibrating diaphragm 42 is combined with voice coil loudspeaker voice coil 46, and voice coil loudspeaker voice coil 46 is provided with voice coil leads 48.Vibrating diaphragm 42 and the first housing 10 and the second housing 20 have surrounded the front operatic tunes 90 jointly, and vibrating diaphragm 42 and the second housing 20 and the 3rd housing 30 have surrounded the rear operatic tunes 92 jointly.Module also comprises the FPCB60 for being electrically connected voice coil leads 48 and module external circuit, one end of FPCB60 is inserted in the front operatic tunes 90 by the rear operatic tunes 92, the FPCB60 that is positioned at the front operatic tunes 90 is provided with the pad 620a for welding voice coil leads 48, pad 620a is square pad, its bearing of trend is consistent with the outlet direction of voice coil leads 48, two limits that are pad 620a are parallel with voice coil leads 48, and another two limits of pad 620a are vertical with voice coil leads 48.Gluing sealing between the front operatic tunes 90 of FPCB60 insert division and the rear operatic tunes 92.
As shown in Fig. 3, Fig. 5, Fig. 6 and Fig. 7 are common, FPCB60 comprises the front connecting portion 62 that is positioned at the front operatic tunes 90 and the rear connecting portion 66 that is positioned at the rear operatic tunes 92, between front connecting portion 62 and rear connecting portion 66, is connected with fixed part 64.Front connecting portion 62 is provided with two, on two front connecting portions 62, is respectively provided with a pad 620a, and the bearing of trend of two pad 620a all the outlet direction of voice coil leads 48 is corresponding thereto consistent.Two pad 620a are all coated with tin cream, and two voice coil leads 48 are welded direct to respectively on two pad 620a.The end of rear connecting portion 66 passes module shell and is connected with module external circuit.The inner side that fixed part 64 is provided with two location hole 640, the second housings 20 is provided with two reference columns 22, and location hole 640 cooperatively interacts FPCB60 is fixed on the second housing 20 with reference column 22.Definition FPCB60 is positive with respect to a side of the front operatic tunes 90, be the back side back to a side of the front operatic tunes 90, on the front connecting portion 62 at the FPCB60 back side and the position of fixed part 64, be pasted with stiffening plate 70, the wiring board that stiffening plate 70 is FR4 for resistance to combustion grade, location hole 640 runs through FPCB60 and stiffening plate 70 simultaneously.Stiffening plate 70, for increasing the mechanical strength of FPCB60, prevents that FPCB60 from deforming in the time of assembling, can ensure that the sealing between the front operatic tunes 90 and the rear operatic tunes 92 is good.Front connecting portion 62, fixed part 64 and rear connecting portion 66 are structure as a whole.
Shown in common with Fig. 4 as shown in Figure 1, Figure 2, the position that the corresponding FPCB60 of a sidewall of the second housing 20 passes is provided with groove 24, and the width of the rear connecting portion 66 of the width of groove 24 and FPCB60 is suitable.On the 3rd housing 30 position of respective slot 24 be provided with one with the suitable retaining wall 36 of groove 24 size shape, the second housing 20 and the 3rd housing 30 fasten between the bottom of rearward recess 24 and the end of retaining wall 36 and leave the one article of gap that can pass for rear connecting portion 66, and rear connecting portion 66 passes the rear operatic tunes 92 from here.Gluing sealing between the second housing 20, the 3rd housing 30 and rear connecting portion 66.
As shown in Fig. 1 and Fig. 6 are common, magnetic circuit system 50 comprises the basin frame 52 being fixed on the 3rd housing 30, basin frame 52 comprise a bottom and be positioned at the edge of two bottom sides minor face and with bottom vertical arrange sidewall, on the long limit, both sides of basin frame 52 bottoms, be provided with successively respectively external magnet 542 and the outer washer 562 of bar shaped, the middle part of basin frame 52 is fixed with internal magnet 540, on internal magnet 540, be fixed with interior washer 560, between internal magnet 540 and interior washer 560 and external magnet 542 and outer washer 562, be provided with magnetic gap.The end of voice coil loudspeaker voice coil 46 is positioned at magnetic gap, and voice coil loudspeaker voice coil 46 does the motion of the reciprocating cutting magnetic line of force according to the size and Orientation of the alternating current by its coiling in magnetic gap, drives vibrating diaphragm 42 to instigate air sounding, thereby completes the power conversion between electroacoustic.
As shown in Figure 1 and Figure 4, the 3rd housing 30 is provided with an installing hole 34, the bottom of shape, size and the basin frame 52 of installing hole 34 is suitable, in the time carrying out loud speaker module group assembling, basin frame 52 bottoms are installed in installing hole 34, the outer surface of basin frame 52 bottoms can flush with the outer surface of the 3rd housing 30, can effectively reduce like this thickness of loud speaker module, is conducive to the slimming development of loud speaker module.
As shown in Fig. 1 and Fig. 4 are common, the 3rd housing 30 is provided with one and is communicated with leak holes 32 extraneous and the rear operatic tunes, and leak holes 32 is for balance module inner and outer air pressure, also has the function that heat that vibrational system and magnetic circuit system are produced distributes rapidly.Defining the side that the 3rd housing 30 is positioned at module internal is inner side, and a side that is positioned at module outside is outside, and one end that leak holes 32 is positioned at the 3rd housing 30 outsides is coated with damping screen 80.
The pad bearing of trend of the utility model loud speaker module is consistent with the outlet direction of voice coil leads, ensure between voice coil leads and pad sideline without angle, can effectively utilize the design space of pad, in effective space, make the efficient weld area maximum between pad and voice coil leads, thereby can effectively ensure welding effect, avoid voice coil leads to be put disconnected hidden danger; Simultaneously spot welding head in the time of spot welding vertically voice coil leads do forward spot welding, can protect the shell of FPCB overlay film and pad periphery injury-free, effectively saved the design space of pad.And in whole assembling process, only used one welding sequence, therefore packaging technology is easy, production efficiency is high.
In present embodiment, the name of the first housing, the second housing and the 3rd housing, just in order to distinguish technical characterictic, does not represent the erection sequence between three, job order and position relationship etc.
In above-described embodiment only taking electrical connector as FPCB as example describes in detail, in practical application, electrical connector also comprises metal clips, the bearing of trend of the pad technical scheme consistent with the outlet direction of voice coil leads is equally applicable in loud speaker module that electrical connector is metal clips, its embodiment and electrical connector are that the execution mode of FPCB is basically identical, therefore the embodiment that electrical connector is metal clips does not repeat them here.
Above-described embodiment only describes in detail as square pad as example taking pad, limiting some pad and can be designed to other shape due to product structure in practical application, as ellipse, trapezoidal or some are irregularly shaped etc., for the pad of these shapes, also can be by its bearing of trend being arranged to and the consistent bonding area increasing between voice coil leads and pad of outlet direction of voice coil leads, those skilled in the art do not need creative work just can make above-mentioned improvement according to above-mentioned execution mode, and obtain the technique effect identical with the utility model, therefore the embodiment for the pad of above-mentioned shape is not described in detail in this.
Inventor has only done detailed description as an example of the loud speaker module described in above-mentioned word and accompanying drawing example to the tilting technical scheme of pad in utility model, and in practical application, the technical solution of the utility model is applicable to the pad design of all oblique outlet method voice coil leads spot welding, those skilled in the art do not need performing creative labour just technical scheme tilting pad in the utility model can be applied in the pad design of other structure of loudspeaker module according to the explanation of above-described embodiment, therefore, even if the structure difference of loud speaker module, but as long as the bearing of trend of its pad and the outlet direction of voice coil leads consistent, for increasing the product of the bonding area between voice coil leads and pad, within all falling into protection range of the present utility model.
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 (10)
1. loud speaker module, comprises shell, contains vibrational system and magnetic circuit system in described shell, and described vibrational system comprises the vibrating diaphragm and the voice coil loudspeaker voice coil that combine, and module inner chamber is divided into the front operatic tunes and two cavitys of the rear operatic tunes by described vibrating diaphragm; Described voice coil loudspeaker voice coil is provided with voice coil leads, described voice coil leads is electrically connected with module external circuit by electrical connector, it is characterized in that, described electrical connector is provided with the pad for welding described voice coil leads, and the bearing of trend of described pad is consistent with the outlet direction of described voice coil leads.
2. loud speaker module according to claim 1, is characterized in that, described pad is square pad, and two limits of described square pad are parallel with described voice coil leads, and another two limits of described square pad are vertical with described voice coil leads.
3. loud speaker module according to claim 2, is characterized in that, described electrical connector is FPCB, and one end of described FPCB is inserted in the described front operatic tunes by the described rear operatic tunes, and the described FPCB that is positioned at the described front operatic tunes is provided with described pad.
4. loud speaker module according to claim 3, it is characterized in that, described FPCB comprises the front connecting portion that is positioned at the described front operatic tunes and the rear connecting portion that is positioned at the described rear operatic tunes, between described front connecting portion and described rear connecting portion, is provided with for described FPCB is fixed on to the fixed part on described shell; Described pad is arranged on described front connecting portion; Described front connecting portion, described fixed part and described rear connecting portion are structure as a whole.
5. loud speaker module according to claim 4, is characterized in that, the back side of described front connecting portion and described fixed part is equipped with the stiffening plate for increasing described FPCB mechanical strength.
6. loud speaker module according to claim 5, is characterized in that, described shell comprises the first housing, the second housing and the 3rd housing that combine successively, and described vibrating diaphragm and described the first housing and described the second housing surround the described front operatic tunes; Described vibrating diaphragm and described the second housing and described the 3rd housing surround the described rear operatic tunes.
7. loud speaker module according to claim 6, is characterized in that, the inner side of described the second housing is provided with reference column, on described FPCB and described stiffening plate, runs through and is provided with the location hole suitable with described reference column; Described FPCB is fixed on described the second housing by described reference column and described location hole.
8. according to the loud speaker module described in claim 6 or 7, it is characterized in that, on the sidewall of described the second housing, the position of corresponding described rear connecting portion is provided with groove, on described the 3rd housing the position of corresponding described groove be provided with one with the suitable retaining wall of described groove, described rear connecting portion is by passing the described rear operatic tunes between the end of described retaining wall and the bottom of described groove.
9. loud speaker module according to claim 8, is characterized in that, described magnetic circuit system comprises basin frame, on described basin frame, is fixed with successively magnet and washer; Described the 3rd housing is provided with installing hole, and the bottom of described installing hole and described basin frame is suitable.
10. loud speaker module according to claim 9, is characterized in that, is also provided with for being communicated with leak holes extraneous and the rear operatic tunes on described the 3rd housing, and one end that described leak holes is positioned at described the 3rd hull outside is coated with damping screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063871.3U CN203722813U (en) | 2014-02-12 | 2014-02-12 | Loudspeaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063871.3U CN203722813U (en) | 2014-02-12 | 2014-02-12 | Loudspeaker module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722813U true CN203722813U (en) | 2014-07-16 |
Family
ID=51161931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420063871.3U Expired - Fee Related CN203722813U (en) | 2014-02-12 | 2014-02-12 | Loudspeaker module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722813U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104185126A (en) * | 2014-09-01 | 2014-12-03 | 歌尔声学股份有限公司 | Loudspeaker module and assembly method thereof |
| CN104822111A (en) * | 2015-03-31 | 2015-08-05 | 歌尔声学股份有限公司 | Loudspeaker module |
| WO2016078561A1 (en) * | 2014-11-20 | 2016-05-26 | 歌尔声学股份有限公司 | Loudspeaker structure |
| CN108513231A (en) * | 2017-02-24 | 2018-09-07 | 东莞顺合丰电业有限公司 | Loud speaker |
| WO2019000579A1 (en) * | 2017-06-30 | 2019-01-03 | 歌尔股份有限公司 | Microspeaker and method for assembling same |
| WO2024138621A1 (en) * | 2022-12-30 | 2024-07-04 | 深圳市韶音科技有限公司 | Main unit module and electronic device |
-
2014
- 2014-02-12 CN CN201420063871.3U patent/CN203722813U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104185126A (en) * | 2014-09-01 | 2014-12-03 | 歌尔声学股份有限公司 | Loudspeaker module and assembly method thereof |
| CN104185126B (en) * | 2014-09-01 | 2018-07-06 | 歌尔股份有限公司 | Loud speaker module and its assemble method |
| WO2016078561A1 (en) * | 2014-11-20 | 2016-05-26 | 歌尔声学股份有限公司 | Loudspeaker structure |
| US10057687B2 (en) | 2014-11-20 | 2018-08-21 | Goertek, Inc. | Speaker structure |
| CN104822111A (en) * | 2015-03-31 | 2015-08-05 | 歌尔声学股份有限公司 | Loudspeaker module |
| KR20170058426A (en) * | 2015-03-31 | 2017-05-26 | 고어텍 인크 | Loudspeaker module |
| CN104822111B (en) * | 2015-03-31 | 2018-10-12 | 歌尔股份有限公司 | A kind of loud speaker module |
| KR101965083B1 (en) * | 2015-03-31 | 2019-04-02 | 고어텍 인크 | Loudspeaker module |
| CN108513231A (en) * | 2017-02-24 | 2018-09-07 | 东莞顺合丰电业有限公司 | Loud speaker |
| WO2019000579A1 (en) * | 2017-06-30 | 2019-01-03 | 歌尔股份有限公司 | Microspeaker and method for assembling same |
| WO2024138621A1 (en) * | 2022-12-30 | 2024-07-04 | 深圳市韶音科技有限公司 | Main unit module and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20200212 |