CN102970643A - Micro loudspeaker - Google Patents
Micro loudspeaker Download PDFInfo
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- CN102970643A CN102970643A CN2012104995556A CN201210499555A CN102970643A CN 102970643 A CN102970643 A CN 102970643A CN 2012104995556 A CN2012104995556 A CN 2012104995556A CN 201210499555 A CN201210499555 A CN 201210499555A CN 102970643 A CN102970643 A CN 102970643A
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- coil loudspeaker
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Abstract
The invention discloses a micro loudspeaker, and relates to the technical field of electroacoustic products. The micro loudspeaker comprises a housing and a front cover combined with the housing, wherein a vibrating system and a magnetic circuit system are accommodated in a cavity defined by the housing and the front cover; the vibrating system comprises a vibrating membrane and a voice coil; lead wires of the voice coil comprise a voice coil body lead wire integral with the voice coil; and the voice coil body lead wire is connected with a voice coil extension lead wire through a conducting component; the voice coil extension lead wire is made of a material the tenacity of which is better than that of the material of the voice coil body lead wire. By adopting the micro loudspeaker, the technical problem that the existing micro loudspeaker voice coil lead wire is easily broken is solved. The voice coil lead wire of the micro loudspeaker disclosed by the invention is good in tenacity, good in strength, and not easily broken, thus improving the reliability of the micro loudspeaker, and prolonging the service of the micro loudspeaker.
Description
Technical field
The present invention relates to the electro-acoustic product technical field, particularly a kind of Microspeaker.
Background technology
Along with the fast development of portable type electronic product, be widely used especially as the Microspeaker of the important acoustical device in the portable type electronic product.Microspeaker generally includes vibrational system and the magnetic circuit system that is contained in the shell, and vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that sets gradually, and voice coil loudspeaker voice coil is connected with voice coil loudspeaker voice coil outlet terminal on the shell by voice coil leads, in order to connect the external circuit of Microspeaker.The operation principle of Microspeaker is to pass into alternating current to voice coil loudspeaker voice coil, moves reciprocatingly with respect to magnetic circuit system under the magnetic fields that magnetic circuit system produces, and voice coil loudspeaker voice coil drives vibrating diaphragm and vibrates together, and vibrating diaphragm is instigated air and sent corresponding sound.
The voice coil leads of Microspeaker is generally the tap of the wire rod of coiling voice coil loudspeaker voice coil in the prior art, because the wire rod of coiling voice coil loudspeaker voice coil is generally thinner enamelled wire, the toughness of wire rod is relatively poor, be easy to cause the fracture of voice coil leads by high vibration or when working long hours at loud speaker, cause the electrical connection of Microspeaker bad, thereby serious reduction the reliability of Microspeaker, shortened greatly useful life of Microspeaker.
Summary of the invention
Technical problem to be solved by this invention provides a kind of Microspeaker, the voice coil leads good toughness of this Microspeaker, and not easy fracture, and then this Microspeaker reliability is high, long service life.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of Microspeaker, comprise shell and the protecgulum of being combined with described shell, contain vibrational system and magnetic circuit system in the cavity that described shell and described protecgulum surround, described vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, the lead-in wire of described voice coil loudspeaker voice coil comprises the voice coil loudspeaker voice coil body lead-in wire with described voice coil loudspeaker voice coil one, described voice coil loudspeaker voice coil body lead-in wire is connected with voice coil loudspeaker voice coil by conductive component and prolongs lead-in wire, and the material of described voice coil loudspeaker voice coil prolongation lead-in wire is the conductive material than the material good toughness of described voice coil loudspeaker voice coil body lead-in wire.
As a kind of improvement, described vibrating diaphragm comprises the outer vibrating diaphragm of annular and is located at the interior vibrating diaphragm of described outer vibrating diaphragm inside.
As further improvement, described conductive component comprises the annular brace that arranges near described interior vibrating diaphragm, and described annular brace is provided be used to being electrically connected described voice coil loudspeaker voice coil body lead-in wire and voice coil loudspeaker voice coil and prolongs the pad that goes between.
As further improvement, described brace is square, and described pad is arranged on the bight of described brace.
As further improvement, described brace is rectangle.
As further improvement, described brace is FPCB, and four bights of described brace are equipped with described pad, and two described pads that are positioned on the same long limit of described brace are connected to same circuit.
As further improvement, described voice coil loudspeaker voice coil body lead-in wire prolongs lead-in wire with described voice coil loudspeaker voice coil and is connected separately respectively two described pads that are positioned on the same circuit.
As further improvement, described brace is hard plastic sheet, is that two bights that are positioned on the same minor face of described brace respectively are provided with a described pad at least, and described voice coil loudspeaker voice coil body lead-in wire prolongs lead-in wire with described voice coil loudspeaker voice coil and is connected simultaneously same described pad.
As further improvement, described conductive component comprises the pad that is used for being electrically connected described voice coil loudspeaker voice coil body lead-in wire and voice coil loudspeaker voice coil prolongation lead-in wire that is arranged at described interior vibrating diaphragm edge.
As further improvement, described voice coil loudspeaker voice coil prolongs a kind of in flexible circuit board, bright and beautiful silk thread and the overstriking enamelled wire of lead-in wire.
Beneficial effect of the present invention is: Microspeaker of the present invention, comprise shell and fasten the protecgulum that is integrated with shell, contain vibrational system and magnetic circuit system in the cavity that shell and protecgulum surround, vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, voice coil leads comprises the voice coil loudspeaker voice coil body lead-in wire with the voice coil loudspeaker voice coil one, voice coil loudspeaker voice coil body lead-in wire is connected with voice coil loudspeaker voice coil by conductive component and prolongs lead-in wire, and the material of voice coil loudspeaker voice coil prolongation lead-in wire is the conductive material than the material good toughness of voice coil loudspeaker voice coil body lead-in wire.Because voice coil leads has been divided into voice coil loudspeaker voice coil body lead-in wire and voice coil loudspeaker voice coil prolongation lead-in wire two parts, and voice coil loudspeaker voice coil prolongs lead-in wire and has adopted preferably conductive material of toughness, thereby increased the intensity of voice coil leads, guaranteed that voice coil leads can fracture by high vibration or when working long hours at loud speaker, and then the electrical connection that has guaranteed Microspeaker is good, improve greatly the reliability of Microspeaker, prolonged the useful life of Microspeaker.
In sum, Microspeaker of the present invention has solved the technical problem of Microspeaker voice coil leads easy fracture in the prior art.The voice coil leads good toughness of Microspeaker of the present invention, intensity is large, is difficult for fracture, thereby has improved the reliability of Microspeaker, and has prolonged the useful life of Microspeaker.
Description of drawings
Fig. 1 is the stereo decomposing structural representation of Microspeaker embodiment one of the present invention;
Fig. 2 be the voice coil loudspeaker voice coil of Microspeaker embodiment one of the present invention and link in conjunction with schematic diagram;
Fig. 3 is the voice coil leads connection diagram of Microspeaker embodiment one of the present invention;
Fig. 4 is the stereo decomposing structural representation of Microspeaker embodiment two of the present invention;
Fig. 5 be the voice coil loudspeaker voice coil of Microspeaker embodiment two of the present invention and link in conjunction with schematic diagram;
Fig. 6 is the voice coil leads connection diagram of Microspeaker embodiment two of the present invention;
Fig. 7 is the stereo decomposing structural representation of Microspeaker embodiment three of the present invention;
Fig. 8 is the interior diaphragm structure schematic diagram of Microspeaker embodiment three of the present invention;
Fig. 9 be the voice coil loudspeaker voice coil of Microspeaker embodiment three of the present invention and interior vibrating diaphragm in conjunction with schematic diagram;
Figure 10 is the voice coil leads connection diagram of Microspeaker embodiment three of the present invention;
Among the figure: 11, protecgulum, 12, shell, 211, outer vibrating diaphragm, 212a; 212b, interior vibrating diaphragm, 22a; 22b, brace, 221, conduction region, 23, voice coil loudspeaker voice coil, 241, voice coil loudspeaker voice coil body lead-in wire, 242, voice coil loudspeaker voice coil prolongs lead-in wire, 311, outer washer, 312, interior washer, 321, external magnet, 322, internal magnet, 33, magnetic conductive board, 4, pad, 5, the voice coil loudspeaker voice coil outlet terminal.
Embodiment
Below in conjunction with drawings and Examples, further set forth the present invention.
Embodiment one:
Such as Fig. 1, shown in Fig. 2 and Fig. 3 are common, a kind of Microspeaker, comprise shell 12 and fasten the protecgulum 11 that is integrated with shell 12, shell 12 is provided with voice coil loudspeaker voice coil outlet terminal 5, contain vibrational system and magnetic circuit system in the cavity that shell 12 and protecgulum 11 surround, vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil 23, vibrating diaphragm comprises the outer vibrating diaphragm 211 of annular and is located at the interior vibrating diaphragm 212a of outer vibrating diaphragm 211 inside, the lead-in wire of voice coil loudspeaker voice coil 23 comprises the voice coil loudspeaker voice coil body lead-in wire 241 with voice coil loudspeaker voice coil 23 one, voice coil loudspeaker voice coil body lead-in wire 241 is connected with voice coil loudspeaker voice coil by conductive component and prolongs lead-in wire 242, the material of voice coil loudspeaker voice coil prolongation lead-in wire 242 is the conductive material than the material good toughness of voice coil loudspeaker voice coil body lead-in wire 241, bright and beautiful silk thread for example, the enamelled wires thicker than voice coil loudspeaker voice coil body lead-in wire 241, alloy enamelled wire and FPCB(flexible circuit board) etc., voice coil loudspeaker voice coil prolongs lead-in wire 242 and is connected with voice coil loudspeaker voice coil outlet terminal 5.Because voice coil leads has been divided into voice coil loudspeaker voice coil body lead-in wire 241 and voice coil loudspeaker voice coil prolongation lead-in wire 242 two parts, and voice coil loudspeaker voice coil prolong lead-in wire 242 adopted bright and beautiful silk thread, than the thicker toughness such as enamelled wire, alloy enamelled wire and FPCB of voice coil loudspeaker voice coil body lead-in wire 241 conductive material preferably, thereby increased the intensity of voice coil leads, guaranteed that voice coil leads can fracture by high vibration or when working long hours at loud speaker, and then the electrical connection that has guaranteed Microspeaker is good, improve greatly the reliability of Microspeaker, prolonged the useful life of Microspeaker.
Conductive component comprises the annular brace 22a that arranges near interior vibrating diaphragm 212a, and brace 22a is rectangular FPCB, and four bights of brace 22a are equipped with for the pad 4 that is electrically connected voice coil loudspeaker voice coil body lead-in wire 241 and voice coil loudspeaker voice coil prolongation lead-in wire 242.Two pads 4 that are positioned on the same long limit of brace 22a are connected to same circuit by the conduction region 221 on the FPCB, a voice coil loudspeaker voice coil body lead-in wire 241 of voice coil loudspeaker voice coil 23 connects a pad 4 that is positioned on the same circuit, voice coil loudspeaker voice coil prolongs lead-in wire 242 and connects another pad 4 that is positioned on the above-mentioned same circuit, thereby voice coil loudspeaker voice coil 23 is prolonged the lead-in wire 242 voice coil loudspeaker voice coil outlet terminals 5 that have been connected on the shell 12 by voice coil loudspeaker voice coil body lead-in wire 241, brace 22a and voice coil loudspeaker voice coil, strengthened the intensity of voice coil leads.
Present embodiment is that four bights of brace 22a have been equipped with pad 4 and have formed two circuit, also can only be provided with pad 4 in two bights that are positioned on the same minor face of brace 22a, then voice coil loudspeaker voice coil body lead-in wire 241 being connected with voice coil loudspeaker voice coil goes between 242 connects same pad 4 simultaneously, can play equally the function that voice coil loudspeaker voice coil 23 is connected with voice coil loudspeaker voice coil outlet terminal 5 on the shell 12.
Magnetic circuit system comprises magnetic conductive board 33, and magnetic conductive board 33 combines with shell 12, and the inboard of magnetic conductive board 33 is provided with external magnet 321 and is arranged at the internal magnet 322 of external magnet 321 inside, is respectively equipped with outer washer 311 and interior washer 312 on external magnet 321 and the internal magnet 322.Internal magnet 322 and interior washer 312 form internal magnetic circuit, external magnet 321 and outer washer 311 form external magnetic circuit, be formed with magnetic gap between internal magnetic circuit and the external magnetic circuit, one end of voice coil loudspeaker voice coil 23 inserts in the magnetic gap, and move reciprocatingly along the bearing of trend of magnetic gap, thereby drive the vibrating diaphragm vibration, send corresponding sound.
Embodiment two:
Shown in Fig. 4, Fig. 5 and Fig. 6 are common, the main distinction of present embodiment and embodiment one is: brace 22b is hard plastic sheet, four bights of brace 22b all form pad 4 by conductive processing, conductive processing can adopt and be coated with electric conducting material in the plating of the bight of brace 22b and make it form pad 4, or at the bight of brace 22b bonded metal sheet as pad 4, voice coil loudspeaker voice coil body lead-in wire 241 and voice coil loudspeaker voice coil prolong to go between and 242 are connected simultaneously same pad 4.
Present embodiment is the structure that four bights of brace 22b have been equipped with pad 4, also can only be provided with pad 4 in two bights that are positioned on the same minor face of brace 22b, can realize equally voice coil loudspeaker voice coil body lead-in wire 241 and voice coil loudspeaker voice coil are prolonged lead-in wire 242 functions that link together, if but only be provided with pad 4 in two bights, carry out Microspeaker when assembling just need the assembling workman conscientious careful align the orientation that voice coil loudspeaker voice coil body lead-in wire 241 and brace 22b are provided with pad 4, so just increased assembling workman's work difficulty, also cause easily simultaneously situation about need to do over again to mistake because of the orientation to occur, and then prolonged production cycle of product, so present embodiment all is provided with pad 4 in four bights of brace 22b, in order to address the above problem, reduce assembling workman's work difficulty, shortened the production cycle of product.
The rigid plastics of making brace 22b can adopt ABS(acrylonitrile, butadiene and cinnamic terpolymer), the POM(acetal resin), the PC(Merlon), the PET(PETG) and PPO(polyphenylene oxide) etc.
Embodiment three:
As shown in Figure 5, present embodiment is with the main distinction of above-described embodiment: conductive component comprises the pad 4 that is used for being electrically connected voice coil loudspeaker voice coil body lead-in wire 241 and voice coil loudspeaker voice coil prolongation lead-in wire 242 that is arranged at interior vibrating diaphragm 212b edge.
Interior vibrating diaphragm 212b is rectangle, material is rigid plastics, the edge that is positioned at four bights of vibrating diaphragm 212b all forms pad 4 by conductive processing, conductive processing can adopt and be coated with electric conducting material in the plating of the bight of interior vibrating diaphragm 212b and make it form pad 4, or at the bight of interior vibrating diaphragm 212b bonded metal sheet as pad 4, voice coil loudspeaker voice coil body lead-in wire 241 and voice coil loudspeaker voice coil prolong to go between and 242 are connected simultaneously same pad 4.
Present embodiment is the structure that four bights of interior vibrating diaphragm 212b have been equipped with pad 4, also can only be provided with pad 4 in two bights that are positioned on the same minor face of vibrating diaphragm 212b, can realize equally voice coil loudspeaker voice coil body lead-in wire 241 and voice coil loudspeaker voice coil are prolonged lead-in wire 242 functions that link together, if but only be provided with pad 4 in two bights, carry out Microspeaker when assembling just need the assembling workman conscientious careful align the orientation that voice coil loudspeaker voice coil body lead-in wire 241 and interior vibrating diaphragm 212b are provided with pad 4, so just increased assembling workman's work difficulty, the situation that also causes easily simultaneously the orientation need to do over again to mistake occurs, and then prolonged production cycle of product, so present embodiment all is provided with pad 4 in four bights of interior vibrating diaphragm 212b, in order to address the above problem, reduce assembling workman's work difficulty, shortened the production cycle of product.
The present invention 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 all drop within protection scope of the present invention.
Claims (10)
1. Microspeaker, comprise shell and the protecgulum of being combined with described shell, contain vibrational system and magnetic circuit system in the cavity that described shell and described protecgulum surround, described vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, it is characterized in that: the lead-in wire of described voice coil loudspeaker voice coil comprises the voice coil loudspeaker voice coil body lead-in wire with described voice coil loudspeaker voice coil one, described voice coil loudspeaker voice coil body lead-in wire is connected with voice coil loudspeaker voice coil by conductive component and prolongs lead-in wire, and the material of described voice coil loudspeaker voice coil prolongation lead-in wire is the conductive material than the material good toughness of described voice coil loudspeaker voice coil body lead-in wire.
2. Microspeaker according to claim 1 is characterized in that: described vibrating diaphragm comprises the outer vibrating diaphragm of annular and is located at the interior vibrating diaphragm of described outer vibrating diaphragm inside.
3. Microspeaker according to claim 2 is characterized in that: described conductive component comprises the annular brace that arranges near described interior vibrating diaphragm, and described annular brace is provided be used to being electrically connected described voice coil loudspeaker voice coil body lead-in wire and voice coil loudspeaker voice coil and prolongs the pad that goes between.
4. Microspeaker according to claim 3, it is characterized in that: described brace is square, and described pad is arranged on the bight of described brace.
5. Microspeaker according to claim 4, it is characterized in that: described brace is rectangle.
6. Microspeaker according to claim 5, it is characterized in that: described brace is FPCB, and four bights of described brace are equipped with described pad, and two described pads that are positioned on the same long limit of described brace are connected to same circuit.
7. Microspeaker according to claim 6 is characterized in that: described voice coil loudspeaker voice coil body lead-in wire prolongs respectively independent two the described pads that are positioned on the same circuit that are connected of lead-in wire with described voice coil loudspeaker voice coil.
8. Microspeaker according to claim 5, it is characterized in that: described brace is hard plastic sheet, at least be that two bights that are positioned on the same minor face of described brace respectively are provided with a described pad, described voice coil loudspeaker voice coil body lead-in wire prolongs lead-in wire with described voice coil loudspeaker voice coil and is connected simultaneously same described pad.
9. Microspeaker according to claim 2 is characterized in that: described conductive component comprise be arranged at described interior vibrating diaphragm edge be used for be electrically connected described voice coil loudspeaker voice coil body lead-in wire and voice coil loudspeaker voice coil prolongs the pad that goes between.
10. according to claim 1 to the described Microspeaker of 9 arbitrary claims, it is characterized in that: described voice coil loudspeaker voice coil prolongs a kind of in flexible circuit board, bright and beautiful silk thread and the overstriking enamelled wire of lead-in wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210499555.6A CN102970643B (en) | 2012-11-29 | 2012-11-29 | Microspeaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210499555.6A CN102970643B (en) | 2012-11-29 | 2012-11-29 | Microspeaker |
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| CN102970643A true CN102970643A (en) | 2013-03-13 |
| CN102970643B CN102970643B (en) | 2015-10-28 |
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| CN201210499555.6A Active CN102970643B (en) | 2012-11-29 | 2012-11-29 | Microspeaker |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105992111A (en) * | 2016-05-27 | 2016-10-05 | 歌尔股份有限公司 | Loudspeaker module group |
| CN106888421A (en) * | 2017-03-20 | 2017-06-23 | 歌尔股份有限公司 | Vibrational system and phonation unit in a kind of phonation unit |
| CN108886655A (en) * | 2016-03-22 | 2018-11-23 | 奥音科技（镇江）有限公司 | Dynamic loudspeaker vibrating diaphragm with internal molding electrical connection |
| WO2019000578A1 (en) * | 2017-06-27 | 2019-01-03 | 歌尔股份有限公司 | Speaker and electronic device comprising same |
| WO2019179187A1 (en) * | 2018-03-19 | 2019-09-26 | 歌尔股份有限公司 | Loudspeaker and electronic device |
| CN110798784A (en) * | 2019-09-30 | 2020-02-14 | 歌尔股份有限公司 | Broadband earphone loudspeaker |
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| CN101765044A (en) * | 2009-12-12 | 2010-06-30 | 歌尔声学股份有限公司 | Minitype moving-coil electroacoustic transducer |
| CN102572658A (en) * | 2012-01-19 | 2012-07-11 | 歌尔声学股份有限公司 | Sounder |
| CN202551337U (en) * | 2012-04-28 | 2012-11-21 | 歌尔声学股份有限公司 | Electroacoustic transducer |
| CN202949562U (en) * | 2012-11-29 | 2013-05-22 | 歌尔声学股份有限公司 | Miniature loudspeaker |
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2012
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| CN1972529A (en) * | 2005-12-26 | 2007-05-30 | 日本先锋公司 | Speaker device |
| CN101765044A (en) * | 2009-12-12 | 2010-06-30 | 歌尔声学股份有限公司 | Minitype moving-coil electroacoustic transducer |
| CN102572658A (en) * | 2012-01-19 | 2012-07-11 | 歌尔声学股份有限公司 | Sounder |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108886655A (en) * | 2016-03-22 | 2018-11-23 | 奥音科技（镇江）有限公司 | Dynamic loudspeaker vibrating diaphragm with internal molding electrical connection |
| US10602252B2 (en) | 2016-03-22 | 2020-03-24 | Sound Solutions International Co., Ltd. | Electrodynamic loudspeaker membrane with internally molded electrical connection |
| CN105992111A (en) * | 2016-05-27 | 2016-10-05 | 歌尔股份有限公司 | Loudspeaker module group |
| CN105992111B (en) * | 2016-05-27 | 2019-08-02 | 歌尔股份有限公司 | A kind of loudspeaker mould group |
| CN106888421A (en) * | 2017-03-20 | 2017-06-23 | 歌尔股份有限公司 | Vibrational system and phonation unit in a kind of phonation unit |
| WO2018171053A1 (en) * | 2017-03-20 | 2018-09-27 | 歌尔股份有限公司 | Vibration system in sound unit and sound unit |
| WO2019000578A1 (en) * | 2017-06-27 | 2019-01-03 | 歌尔股份有限公司 | Speaker and electronic device comprising same |
| WO2019179187A1 (en) * | 2018-03-19 | 2019-09-26 | 歌尔股份有限公司 | Loudspeaker and electronic device |
| CN110798784A (en) * | 2019-09-30 | 2020-02-14 | 歌尔股份有限公司 | Broadband earphone loudspeaker |
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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. |