CN203618121U - Loudspeaker module - Google Patents

Loudspeaker module Download PDF

Info

Publication number
CN203618121U
CN203618121U CN201320821291.1U CN201320821291U CN203618121U CN 203618121 U CN203618121 U CN 203618121U CN 201320821291 U CN201320821291 U CN 201320821291U CN 203618121 U CN203618121 U CN 203618121U
Authority
CN
China
Prior art keywords
housing
operatic tunes
fpcb
loud speaker
module
Prior art date
Application number
CN201320821291.1U
Other languages
Chinese (zh)
Inventor
王新
曲红菊
Original Assignee
歌尔声学股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 歌尔声学股份有限公司 filed Critical 歌尔声学股份有限公司
Priority to CN201320821291.1U priority Critical patent/CN203618121U/en
Application granted granted Critical
Publication of CN203618121U publication Critical patent/CN203618121U/en

Links

Abstract

The utility model discloses a loudspeaker module and relates to the technical field of electro-acoustic products. The loudspeaker module comprises a housing, wherein a vibration system and a magnetic circuit system are accommodated in the housing. The vibration system includes a vibrating diaphragm and a voice coil which are combined together. The vibrating diaphragm divides an inner cavity of the module into a front sound cavity and a back sound cavity. The loudspeaker module further comprises an FPCB which is used for electrically connecting a voice lead wire and a module external circuit. One end of the FPCB is inserted into the front sound cavity through the rear sound cavity. The FPCB positioned in the front sound cavity is provided with a welding pad for welding the voice coil lead wire. The front sound cavity and the rear sound cavity are sealed with glue therebetween. The loudspeaker module solves technical problems of complex production processes and poor product quality in the loudspeaker modules in the prior art. The loudspeaker module is simple and convenient in product processes, high in quality, low in cost and high in production efficiency.

Description

Loud speaker module
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, and vibrating diaphragm is divided into whole module inner chamber the front operatic tunes and the rear operatic tunes of mutual isolation.
The voice coil leads of loud speaker module is normally by FPCB(Flexible Printed Circuit Board) be electrically connected with module external circuit, owing to needing to seal completely between the front operatic tunes of module and the rear operatic tunes, and voice coil leads is conventionally by the front operatic tunes outlet of module, FPCB can only be arranged on again in the rear operatic tunes of module, therefore existing loud speaker module is injection moulding one metal clips in the housing of module normally, by metal clips, voice coil leads and FPCB is electrically connected.The loud speaker module of this kind of structure has following deficiency:
One, in shell injection moulding process: can produce burr, mould and weigh wounded etc. badly, have a strong impact on the quality of shell, and the complex process of injection moulding, efficiency is low.
Two,, in module group assembling process: need to carry out twice welding, not only operation is loaded down with trivial details, and workman's workload is large, and production efficiency is low, more increased product bad probability has occurred.
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 group assembling operation is easy, and reliability is high, and the cost of product is low, and production efficiency 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, 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 vibrating diaphragm; Module also comprises the FPCB for being electrically connected voice coil leads and module external circuit, 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 the pad for welding described voice coil leads; Gluing sealing between the described front operatic tunes and the described rear operatic tunes.
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 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, described fixed part is fixed on described the second housing.
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.
Wherein, 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 FPCB of the utility model loud speaker module inserts the front operatic tunes by the rear operatic tunes, the FPCB that is positioned at the front operatic tunes is provided with pad, and voice coil leads is welded on pad.Voice coil leads is directly welded with FPCB, saved the shell fragment being injection-moulded in housing, and then the utility model loud speaker module has the following advantages compared with loud speaker module of the prior art:
One, save shell fragment material, saved cost payout.
Two, need not injection moulding together with shell fragment when injection casing, injection moulding efficiency is high, and shell can not produce burr or weigh wounded etc. badly, and case quality is high.
Three, avoided the properties of product hidden danger that causes because of shell fragment improper use, as electromagnetic interference etc.
Four, in assembling process, become once welding from existing twice welding, improved operating efficiency, also avoided the poor electric contact causing because of multiple welding.
Because the front connecting portion of FPCB and the back side of fixed part are equipped with stiffening plate, can strengthen the mechanical strength of FPCB, prevent that FPCB from deforming in assembling, guaranteed the sealing between the front operatic tunes and the rear operatic tunes.
In sum, it is numerous and diverse that the utility model loud speaker module has solved in prior art loud speaker module production technology, the technical problem that product quality is poor.The utility model loud speaker module production technology is easy, and quality is high, and cost is low, and production efficiency is high.
Accompanying drawing explanation
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;
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, 620, 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.
Shown in common with Fig. 6 as shown in Figure 1, Figure 2, 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.Whole module inner chamber is divided into the front operatic tunes 90 and 92 two cavitys of the rear operatic tunes by vibrational system 40.Module also comprises the FPCB60 for being electrically connected vibrational system 40 and module external circuit, and one end of FPCB60 is inserted in the front operatic tunes 90 by the rear operatic tunes 92, and is electrically connected with vibrational system 40 in the front operatic tunes 90.Gluing sealing between the front operatic tunes 90 of FPCB60 insert division and the rear operatic tunes 92.
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.Vibrational system 40 comprises that edge is fixed on the vibrating diaphragm 42 on the second housing 20, vibrating diaphragm 42 is provided with ball top 44 near the middle part of the first housing 10 1 sides, the opposite side of vibrating diaphragm 42 is combined with voice coil loudspeaker voice coil 46, and the end of voice coil loudspeaker voice coil 46 is positioned at magnetic gap, 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.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 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, and each front connecting portion 62 is provided with one for welding the pad 620 of voice coil leads 48.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 guarantee 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.
As shown in Figure 3, connect before two 62 be positioned at the front operatic tunes 90 voice coil leads 48 go out line position, two pads 620 are all coated with tin cream, two voice coil leads 48 are welded direct to respectively on two pads 620.
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 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 assembling process of the utility model loud speaker module is as follows:
S1, assemble vibrational system 40 and magnetic circuit system 50 respectively;
S2, FPCB60 is directly inserted in the front operatic tunes 90 from the rear operatic tunes 92, carries out hot melt by fixed bit post 22 and fix;
S3, the second housing 20 near the end face of first housing 10 one end on gluing, vibrational system 40 is bonded on the second housing 20, make voice coil leads 48 just in time be positioned at pad 620 places of FPCB60;
S4, voice coil leads 48 is welded on the pad 620 of FPCB60;
S5, magnetic circuit system 50 is fixed on the relevant position of the second housing 20;
S6, before FPCB60 inserts from the rear operatic tunes 92 the position gluing of the operatic tunes 90, realize the sealing between the front operatic tunes 90 and rear operatic tunes chamber 92;
S7, by the 3rd housing 30 by being ultrasonically bonded on the second housing 20, between the 3rd housing 30 and basin frame 52, carry out gluing sealing;
S8, by the first housing 10 by being ultrasonically bonded on the second housing 20;
S9, pass place's gluing sealing at FPCB60;
S10, paste damping screen 80, so far completed the assembling procedure of whole module.
From above-mentioned assembling procedure, the utility model loud speaker module has only been used welding sequence one, therefore packaging technology is easy, production efficiency is high.
In the utility model, 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.
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; Module also comprises the FPCB for being electrically connected voice coil leads and module external circuit, it is characterized in that, 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 the pad for welding described voice coil leads; Gluing sealing between the described front operatic tunes and the described rear operatic tunes.
2. loud speaker module according to claim 1, 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 front connecting portion, described fixed part and described rear connecting portion are structure as a whole.
3. loud speaker module according to claim 2, 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.
4. loud speaker module according to claim 3, 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.
5. loud speaker module according to claim 4, is characterized in that, described fixed part is fixed on described the second housing.
6. loud speaker module according to claim 5, 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.
7. according to the loud speaker module described in claim 4 to 6 any one claim, 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.
8. according to the loud speaker module described in claim 4 to 6 any one claim, it is characterized in that, described magnetic circuit system comprises basin frame, on described basin frame, is fixed with successively magnet and washer.
9. loud speaker module according to claim 8, is characterized in that, 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.
CN201320821291.1U 2013-12-11 2013-12-11 Loudspeaker module CN203618121U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320821291.1U CN203618121U (en) 2013-12-11 2013-12-11 Loudspeaker module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320821291.1U CN203618121U (en) 2013-12-11 2013-12-11 Loudspeaker module

Publications (1)

Publication Number Publication Date
CN203618121U true CN203618121U (en) 2014-05-28

Family

ID=50770737

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320821291.1U CN203618121U (en) 2013-12-11 2013-12-11 Loudspeaker module

Country Status (1)

Country Link
CN (1) CN203618121U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104581567A (en) * 2015-01-20 2015-04-29 音品电子(深圳)有限公司 Ultra-thin loudspeaker and assembling method thereof
CN104796828A (en) * 2015-05-04 2015-07-22 歌尔声学股份有限公司 Speaker module
CN104822111A (en) * 2015-03-31 2015-08-05 歌尔声学股份有限公司 Loudspeaker module
CN105792088A (en) * 2016-05-05 2016-07-20 歌尔声学股份有限公司 Loudspeaker test device
CN107707989A (en) * 2017-08-29 2018-02-16 瑞声声学科技(深圳)有限公司 Loudspeaker module and its encapsulating method
CN104768109B (en) * 2015-03-31 2019-03-15 歌尔股份有限公司 A kind of loudspeaker mould group

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104581567A (en) * 2015-01-20 2015-04-29 音品电子(深圳)有限公司 Ultra-thin loudspeaker and assembling method thereof
CN104768109B (en) * 2015-03-31 2019-03-15 歌尔股份有限公司 A kind of loudspeaker mould group
CN104822111A (en) * 2015-03-31 2015-08-05 歌尔声学股份有限公司 Loudspeaker module
CN104822111B (en) * 2015-03-31 2018-10-12 歌尔股份有限公司 A kind of loud speaker module
CN104796828B (en) * 2015-05-04 2018-05-01 歌尔股份有限公司 A kind of loudspeaker module
CN104796828A (en) * 2015-05-04 2015-07-22 歌尔声学股份有限公司 Speaker module
CN105792088A (en) * 2016-05-05 2016-07-20 歌尔声学股份有限公司 Loudspeaker test device
CN107707989A (en) * 2017-08-29 2018-02-16 瑞声声学科技(深圳)有限公司 Loudspeaker module and its encapsulating method

Similar Documents

Publication Publication Date Title
US8385568B2 (en) Low-profile speaker arrangements for compact electronic devices
WO2016165355A1 (en) Loudspeaker module
CN205566633U (en) Micro sound production device
CN104168528B (en) Loud speaker module
US10375462B2 (en) Silica gel diaphragm, receiver module, and method for processing silica gel diaphragm
WO2016033865A1 (en) Speaker module
US20170134848A1 (en) Speaker module
KR20150105991A (en) Ultrathin loudspeaker module
CN202334867U (en) Moving iron type microphone unit for bone-conduction hearing aid and loudspeaker
CN204291373U (en) Microspeaker
CN102572657B (en) Mini-type moving-ring acoustic generator
KR101657917B1 (en) Loudspeaker module
KR101840735B1 (en) Loudspeaker module and electronic device comprising the loudspeaker module
CN104219607B (en) Loudspeaker module
CN204948357U (en) Loud speaker module
KR101827664B1 (en) Loudspeaker module applied inside terminal
US20170070796A1 (en) Lateral sound making loudspeaker module
US20180041838A1 (en) Diaphragm assembly and loudspeaker having same
CN104202700B (en) Microphone device
WO2016101746A1 (en) Speaker module
CN204733358U (en) Microspeaker
CN103686550A (en) Loudspeaker module group
CN203708475U (en) Multifunctional electroacoustic device
US10178467B2 (en) Thin speaker module with a front acoustic cavity
WO2020000930A1 (en) Sound generation device and portable terminal

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
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.

C56 Change in the name or address of the patentee