CN202949562U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
- Publication number
- CN202949562U CN202949562U CN 201220646114 CN201220646114U CN202949562U CN 202949562 U CN202949562 U CN 202949562U CN 201220646114 CN201220646114 CN 201220646114 CN 201220646114 U CN201220646114 U CN 201220646114U CN 202949562 U CN202949562 U CN 202949562U
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- voice coil
- wire
- coil loudspeaker
- loudspeaker voice
- lead
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Abstract
The utility model discloses a miniature loudspeaker and relates to the technical field of electro-acoustical products. The miniature loudspeaker comprises a casing and a front cover combined with the casing. A vibration system and a magnetic circuit system are accommodated in a cavity defined by the casing and the front cover, the vibration system comprises a vibrating diaphragm and a voice coil, a lead wire of the voice coil comprises a voice coil body lead wire integrated with the voice coil, the voice coil body lead wire is connected with a voice coil prolonged lead wire through a conducting part, and the voice coil prolonged lead wire is made from a conducting material better with toughness better than a material of the voice coil body lead wire. The technical problem that the voice coil lead wire of the miniature loudspeaker in the prior art easily breaks is solved. The voice coil lead wire of the miniature loudspeaker is good in toughness and large in strength and does not easily break, accordingly the reliability of the miniature loudspeaker is improved, and the service life of the miniature loudspeaker is prolonged.
Description
Technical field
The utility model 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 portable type electronic product.Microspeaker generally includes vibrational system and the magnetic circuit system that is contained in 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 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.
In prior art, the voice coil leads of Microspeaker is generally the tap of the wire rod of coiling voice coil loudspeaker voice coil, 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.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of Microspeaker, the voice coil leads good toughness of this Microspeaker, and easy fracture not, and then this Microspeaker reliability is high, long service life.
For solving the problems of the technologies described above, the technical solution of the utility model 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 extends 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 to described voice coil loudspeaker voice coil body lead-in wire and voice coil loudspeaker voice coil and extends 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 described brace same long limit are connected to same circuit.
As further improvement, described voice coil loudspeaker voice coil body lead-in wire extends lead-in wire with described voice coil loudspeaker voice coil and is connected separately respectively two described pads that are positioned on 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 extends 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 to 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 extends a kind of in flexible circuit board, bright and beautiful silk thread and overstriking enamelled wire of lead-in wire.
The beneficial effects of the utility model are: Microspeaker described in the utility model, comprise shell and fasten with shell the protecgulum that is integrated, 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 extends 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.Extend lead-in wire two parts owing to voice coil leads being divided into voice coil loudspeaker voice coil body lead-in wire and voice coil loudspeaker voice coil, and voice coil loudspeaker voice coil extends lead-in wire and has adopted toughness conductive material preferably, thereby increased the intensity of voice coil leads, guaranteed at loud speaker by high vibration or voice coil leads can fracture when working long hours, and then the electrical connection that has guaranteed Microspeaker is good, improve greatly the reliability of Microspeaker, extended the useful life of Microspeaker.
In sum, the utility model Microspeaker has solved the technical problem of Microspeaker voice coil leads easy fracture in the prior art.The voice coil leads good toughness of the utility model Microspeaker, intensity is large, is difficult for fracture, thereby has improved the reliability of Microspeaker, and has extended the useful life of Microspeaker.
Description of drawings
Fig. 1 is the stereo decomposing structural representation of the utility model Microspeaker embodiment one;
Fig. 2 be the voice coil loudspeaker voice coil of the utility model Microspeaker embodiment one and link in conjunction with schematic diagram;
Fig. 3 is the voice coil leads connection diagram of the utility model Microspeaker embodiment one;
Fig. 4 is the stereo decomposing structural representation of the utility model Microspeaker embodiment two;
Fig. 5 be the voice coil loudspeaker voice coil of the utility model Microspeaker embodiment two and link in conjunction with schematic diagram;
Fig. 6 is the voice coil leads connection diagram of the utility model Microspeaker embodiment two;
Fig. 7 is the stereo decomposing structural representation of the utility model Microspeaker embodiment three;
Fig. 8 is the interior diaphragm structure schematic diagram of the utility model Microspeaker embodiment three;
Fig. 9 be the voice coil loudspeaker voice coil of the utility model Microspeaker embodiment three and interior vibrating diaphragm in conjunction with schematic diagram;
Figure 10 is the voice coil leads connection diagram of the utility model Microspeaker embodiment three;
In 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 extends 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 utility model.
Embodiment one:
as Fig. 1, shown in Fig. 2 and Fig. 3 are common, a kind of Microspeaker, comprise shell 12 and fasten with shell 12 protecgulum 11 that is integrated, 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 extends 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 wire 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 extends lead-in wire 242 and is connected with voice coil loudspeaker voice coil outlet terminal 5.Extend lead-in wire 242 two parts owing to voice coil leads being divided into voice coil loudspeaker voice coil body lead-in wire 241 and voice coil loudspeaker voice coil, and voice coil loudspeaker voice coil extend 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 at loud speaker by high vibration or voice coil leads can fracture when working long hours, and then the electrical connection that has guaranteed Microspeaker is good, improve greatly the reliability of Microspeaker, extended 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 to 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 brace 22a same long limit are connected to same circuit by the conduction region 221 on 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 same circuit, voice coil loudspeaker voice coil extends lead-in wire 242 and connects another pad 4 that is positioned on above-mentioned same circuit, thereby voice coil loudspeaker voice coil 23 is extended the lead-in wire 242 voice coil loudspeaker voice coil outlet terminals 5 that have been connected on 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.
The 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 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 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 external magnetic circuit, one end of voice coil loudspeaker voice coil 23 inserts in magnetic gap, and move reciprocatingly along the bearing of trend of magnetic gap, thereby drive the vibrating diaphragm vibration, send corresponding sound.
Embodiment two:
As 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 extend to go between and 242 are connected simultaneously same pad 4.
the 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 extended lead-in wire 242 functions that link together, if but only be provided with pad 4 on 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 easily cause simultaneously because of the orientation the wrong situation generation that need to do over again, and then extended production cycle of product, therefore the present embodiment all is provided with pad 4 in four bights of brace 22b, in order to address the above problem, reduced 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 to 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 extend to go between and 242 are connected simultaneously same pad 4.
the 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 extended lead-in wire 242 functions that link together, if but only be provided with pad 4 on 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 easily causes simultaneously the orientation need to do over again to mistake occurs, and then extended production cycle of product, therefore the present embodiment all is provided with pad 4 in four bights of interior vibrating diaphragm 212b, in order to address the above problem, reduced assembling workman's work difficulty, shortened the production cycle of product.
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 are within all dropping on protection range of the present utility model.
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 extends 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 to described voice coil loudspeaker voice coil body lead-in wire and voice coil loudspeaker voice coil and extends 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 described brace same long limit 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 extends lead-in wire independent two the described pads that are positioned on same circuit that are connected respectively 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 extends 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 to described voice coil loudspeaker voice coil body lead-in wire and voice coil loudspeaker voice coil extends the pad that goes between.
10. the described Microspeaker of arbitrary claim of according to claim 1 to 9 is characterized in that: described voice coil loudspeaker voice coil extends a kind of in flexible circuit board, bright and beautiful silk thread and overstriking enamelled wire of lead-in wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646114 CN202949562U (en) | 2012-11-29 | 2012-11-29 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646114 CN202949562U (en) | 2012-11-29 | 2012-11-29 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202949562U true CN202949562U (en) | 2013-05-22 |
Family
ID=48425239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220646114 Expired - Fee Related CN202949562U (en) | 2012-11-29 | 2012-11-29 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202949562U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970643A (en) * | 2012-11-29 | 2013-03-13 | 歌尔声学股份有限公司 | Micro loudspeaker |
| CN106101963A (en) * | 2016-08-23 | 2016-11-09 | 深圳市音沃仕科技有限公司 | A kind of speaker |
| WO2018145385A1 (en) * | 2017-02-13 | 2018-08-16 | 歌尔股份有限公司 | Connection structure for voice coil in sound generating device and sound generating device |
-
2012
- 2012-11-29 CN CN 201220646114 patent/CN202949562U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970643A (en) * | 2012-11-29 | 2013-03-13 | 歌尔声学股份有限公司 | Micro loudspeaker |
| CN102970643B (en) * | 2012-11-29 | 2015-10-28 | 歌尔声学股份有限公司 | Microspeaker |
| CN106101963A (en) * | 2016-08-23 | 2016-11-09 | 深圳市音沃仕科技有限公司 | A kind of speaker |
| WO2018145385A1 (en) * | 2017-02-13 | 2018-08-16 | 歌尔股份有限公司 | Connection structure for voice coil in sound generating device and sound generating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20151129 |