CN201789621U - Moving-coil type acoustic generator - Google Patents
Moving-coil type acoustic generator Download PDFInfo
- Publication number
- CN201789621U CN201789621U CN2010201920802U CN201020192080U CN201789621U CN 201789621 U CN201789621 U CN 201789621U CN 2010201920802 U CN2010201920802 U CN 2010201920802U CN 201020192080 U CN201020192080 U CN 201020192080U CN 201789621 U CN201789621 U CN 201789621U
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- voice coil
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- magnetic circuit
- acoustical generator
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- 238000000034 method Methods 0.000 description 7
- 230000002950 deficient Effects 0.000 description 6
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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Abstract
The utility model discloses a moving-coil type acoustic generator, which is strip-shaped and comprises a vibrating system, a magnetic circuit system and an outer casing for fixing the vibrating system and the magnetic circuit system. The vibrating system comprises a voice coil and a vibrating diaphragm consisting of a rigid spherical top and a flexible foldable ring, a centering disk is combined between the vibrating diaphragm and the voice coil and fixedly mounted on the outer casing, the voice coil is combined on the centering disk, and an outlet end of the voice coil is provided with an electric connecting device which is independently electrically connected to the outside of the moving-coil type acoustic generator. Compared with the prior art, the moving-coil type acoustic generator can overcome shortages of torsion, distortion and the like in the existing structure due to polarization, and improves quality of products.
Description
Technical field
The utility model relates to a kind of minitype acoustic generator, relates in particular to a kind ofly can prevent the vibrating diaphragm polarization, avoids vibrating diaphragm to produce the moving-coil type acoustical generator of defectives such as distortion and distortion.
Background technology
Along with the development of portable terminal consumer electronics product, a large amount of microphone devices has obtained using widely.The operation principle of well-known moving-coil type acoustical generator is: the voice coil loudspeaker voice coil that is connected with alternating current is subjected to Lorentz force and makes vibration on the vibrational system generation vertical direction of moving-coil type acoustical generator in magnetic field, thus sounding.
At present, be applied in the moving-coil type acoustical generator of plate electronic components such as LCD, PDP, known, for reducing the occupied space of acoustical generator size, generally it is designed to strip.But the moving-coil type acoustical generator of this traditional structure, when electric current flows through the voice coil loudspeaker voice coil of the magnetic gap that is positioned at magnetic circuit system formation, can around voice coil loudspeaker voice coil, produce the variation magnetic field identical with audio signal frequency, the magnetic field that magnetic field that voice coil loudspeaker voice coil produced and magnetic circuit system are produced can produce interaction, make voice coil loudspeaker voice coil produce the skew that departs from the vertical direction, simultaneously since voice coil loudspeaker voice coil be connected with vibrating diaphragm and produce transmission, cause the vibration imbalance of the moving-coil type acoustical generator vibrating diaphragm of this strip especially easily, produce bad phenomenon such as distortion and distortion, make the vibrational system job insecurity.
So, be necessary the moving-coil type acoustical generator of said structure is further improved, to avoid above-mentioned defective.
The utility model content
Technical problem to be solved in the utility model provides a kind of miniature moving-coil type acoustical generator, can prevent effectively that vibrating diaphragm from producing polarization, can improve defective such as existing distortion of diaphragm structure and distortion in the prior art, thereby promote the quality of product.
For solving the problems of the technologies described above, the technical solution of the utility model is: the moving-coil type acoustical generator, be strip, the involving vibrations system, the shell of magnetic circuit system and fixing described vibrational system and magnetic circuit system, described vibrational system comprises voice coil loudspeaker voice coil and the vibrating diaphragm that is formed by the ball top of rigidity and flexible ring portion, and, be combined with centring disk between described vibrating diaphragm and the voice coil loudspeaker voice coil, described centring disk is fixed on the described shell, described voice coil loudspeaker voice coil is combined on the described centring disk, and the leading-out terminal of described voice coil loudspeaker voice coil is provided with the arrangements of electric connection that independently is electrically connected described moving-coil type acoustical generator outside.
As a kind of optimized technical scheme, described arrangements of electric connection is a flexible circuit board.
As further optimized technical scheme, described flexible circuit board is combined in the ring portion of described vibrating diaphragm.
As another kind of optimized technical scheme, described flexible circuit board is combined on the described centring disk.
As further optimized technical scheme, described magnetic circuit system comprises at least two magnetic circuit unit that are installed in described enclosure, and described magnetic circuit unit is arranged along the described outer cover length direction of strip.
As further optimized technical scheme, described magnetic circuit unit is set to two.
As further optimized technical scheme, described magnetic circuit unit comprises circular basin frame, circular magnet and the circular washer plate that is installed in the described enclosure of strip.
As further optimized technical scheme, described flexible circuit board is set to four, the corresponding respectively voice coil loudspeaker voice coil that is electrically connected described magnetic circuit unit.
Owing to adopted technique scheme, the beneficial effects of the utility model are: can prevent effectively that vibrating diaphragm from producing polarization, can improve defective such as existing distortion of diaphragm structure and distortion in the prior art, thereby promote the quality of product.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the utility model embodiment one;
Fig. 2 is the vertical view of the flexible circuit board that relates to of the utility model embodiment one;
Fig. 3 is the vertical view that the utility model is executed example one;
Fig. 4 is the three-dimensional exploded view of the utility model embodiment two;
Fig. 5 is the vertical view of the flexible circuit board that relates to of the utility model embodiment two.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done further detailed description.
In the following description, only the mode by explanation is described some one exemplary embodiment of the present utility model, undoubtedly, those of ordinary skill in the art can recognize, under the situation that does not depart from spirit and scope of the present utility model, can revise described embodiment with various mode.Therefore, accompanying drawing and be described in just illustratively in essence rather than is used to limit the protection range of claim.In addition, in this manual, identical Reference numeral indicates identical part.
Embodiment one:
Fig. 1 is the three-dimensional exploded view of the utility model embodiment one, and as shown in Figure 1, moving-coil type acoustical generator provided by the utility model is the strip structure, mainly comprises shell 1, vibrational system and magnetic circuit system.Described vibrational system comprises voice coil loudspeaker voice coil 23 and the vibrating diaphragm that is formed by the ball top 21 of rigidity and flexible ring portion 22, and the outward flange at ball top 21 is pushed down the vibrating diaphragm of combination back formation moving-coil type acoustical generator by the inward flange of ring portion 22; Described magnetic circuit system comprises at least two magnetic circuit unit that are installed in described shell 1 inside, described magnetic circuit unit is arranged along described shell 1 length direction of strip, magnetic circuit unit described in the present embodiment is set to two, and described magnetic circuit unit comprises basin frame 33, magnet 32 and the washer plate 31 that is installed in strip described shell 1 inside and combines from top to bottom, magnet 32 and washer plate 31 all are set to circular configuration in the present embodiment, and basin frame 33 is the peviform structure, and be injection-moulded in shell 1 one, and wrapped by shell 1.
Between vibrating diaphragm and voice coil loudspeaker voice coil 23, centring disk 4 is installed also, the edge of centring disk 4 is fixed on the shell 1, and the upper surface of centring disk 4 and lower surface combine with the ball top 21 and the voice coil loudspeaker voice coil 23 of rigidity respectively, centring disk 4 has elasticity, can corresponding vibrational system vibrate, and vibrational system is fixed, thereby prevent that the moving-coil type acoustical generator from producing polarization, and preferred, centring disk 4 is phosphor-copper or beryllium copper material.
In the ring portion 22 of vibrating diaphragm, also be combined with four and be respectively arranged with and be electrically connected two voice coil loudspeaker voice coils 23, and only be used to conduct electricity the flexible circuit board 5 of logical function.Fig. 2 is the vertical view of the flexible circuit board that relates to of the utility model embodiment one; Fig. 3 is the vertical view that the utility model is executed example one, in conjunction with Fig. 2 and shown in Figure 3, flexible circuit board 5 comprises internal wiring end 51, connecting portion 52 and external terminal 53, wherein internal wiring end 51 is electrically connected with the leading-out terminal of voice coil loudspeaker voice coil 23, the corresponding vibrating diaphragm of the part-structure shape of connecting portion 52, so that combine with the ring portion 22 of vibrating diaphragm better, external terminal 53 is arranged on the outside of moving-coil type acoustical generator, to realize and being electrically connected of external electronic circuits.
In the utility model, between vibrating diaphragm and voice coil loudspeaker voice coil 23, be provided with centring disk 4, can avoid the moving-coil type acoustical generator in use because the interaction in voice coil loudspeaker voice coil magnetic field and magnetic circuit system magnetic field effectively, and the voice coil loudspeaker voice coil generation that makes that causes depart from skew defective on the vertical direction.And in the utility model, the centring disk 4 of metal structure, for vibrating diaphragm that it supported provides reliable steadiness, thereby can avoid the moving-coil type acoustical generator effectively in use, because voice coil loudspeaker voice coil is connected with vibrating diaphragm and produces transmission, being easy to of being caused caused the unbalanced defective of vibration of the moving-coil type acoustical generator vibrating diaphragm of strip, avoids vibrating diaphragm to produce bad phenomenon such as distortion and distortion in the application process of acoustical generator, thus the stability of raising vibrational system work; Adopt simultaneously flexible circuit board 5 grades independently electric connecting part realize being electrically connected of voice coil loudspeaker voice coil 23 and moving-coil type acoustical generator external electronic circuits, this design makes the packaging technology of product more easy, has reduced production cost.
Embodiment two:
Fig. 4 is the three-dimensional exploded view of the utility model embodiment two, as shown in Figure 4, the main difference of present embodiment and the foregoing description is, flexible circuit board 5 is mounted on the centring disk 4 in the present embodiment, the effect of the flexible circuit board 5 of this implementation process is identical with above-mentioned implementation process, only is used to conduct.Fig. 5 is the vertical view of the flexible circuit board that relates to of the utility model embodiment two, and as shown in Figure 5, than embodiment one, this implementation process has been carried out the improved shape being convenient to implement to flexible circuit board 5.This design of this implementation process can realize the technique effect of the foregoing description equally, can satisfy more actual production demand simultaneously.
In the above-described embodiments, flexible circuit board also can replace with other independent electric connecting part, also can directly realize above-mentioned execution mode by the lead-in wire of voice coil loudspeaker voice coil; Centring disk also can adopt other material to replace; Magnetic circuit unit also can be implemented this programme with one or other number.
Under above-mentioned instruction of the present utility model; those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description; and these improvement and distortion; should all drop in the protection range of the present utility model; those skilled in the art should be understood that; above-mentioned specific descriptions are just better explained the utility model, and protection range of the present utility model is limited by claim and equivalent thereof.
Claims (8)
1. moving-coil type acoustical generator, be strip, the shell of involving vibrations system, magnetic circuit system and fixing described vibrational system and magnetic circuit system, described vibrational system comprises voice coil loudspeaker voice coil and the vibrating diaphragm that is formed by the ball top of rigidity and flexible ring portion, it is characterized in that, be combined with centring disk between described vibrating diaphragm and the voice coil loudspeaker voice coil, described centring disk is fixed on the described shell, described voice coil loudspeaker voice coil is combined on the described centring disk, and the leading-out terminal of described voice coil loudspeaker voice coil is provided with the arrangements of electric connection that independently is electrically connected described moving-coil type acoustical generator outside.
2. according to the described moving-coil type acoustical generator of claim 1, it is characterized in that described arrangements of electric connection is a flexible circuit board.
3. according to the described moving-coil type acoustical generator of claim 2, it is characterized in that described flexible circuit board is combined in the ring portion of described vibrating diaphragm.
4. according to the described moving-coil type acoustical generator of claim 2, it is characterized in that described flexible circuit board is combined on the described centring disk.
5. according to the described moving-coil type acoustical generator of the arbitrary claim of claim 1 to 4, it is characterized in that described magnetic circuit system comprises at least two magnetic circuit unit that are installed in described enclosure, described magnetic circuit unit is arranged along the described outer cover length direction of strip.
6. according to the described moving-coil type acoustical generator of claim 5, it is characterized in that described magnetic circuit unit is set to two.
7. according to the described moving-coil type acoustical generator of claim 6, it is characterized in that described magnetic circuit unit comprises circular basin frame, circular magnet and the circular washer plate that is installed in the described enclosure of strip.
8. according to the described moving-coil type acoustical generator of claim 7, it is characterized in that described flexible circuit board is set to four, the corresponding respectively voice coil loudspeaker voice coil that is electrically connected described magnetic circuit unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201920802U CN201789621U (en) | 2010-05-06 | 2010-05-06 | Moving-coil type acoustic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201920802U CN201789621U (en) | 2010-05-06 | 2010-05-06 | Moving-coil type acoustic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789621U true CN201789621U (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201920802U Expired - Lifetime CN201789621U (en) | 2010-05-06 | 2010-05-06 | Moving-coil type acoustic generator |
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| CN (1) | CN201789621U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595284A (en) * | 2012-02-20 | 2012-07-18 | 歌尔声学股份有限公司 | Miniature electroacoustic transducer and assembly method thereof |
| CN102611968A (en) * | 2012-02-10 | 2012-07-25 | 陈志豪 | Conductive elastic wave for loudspeaker |
| CN103281656A (en) * | 2013-05-08 | 2013-09-04 | 歌尔声学股份有限公司 | Flat plate type bass loudspeaker |
| WO2014180015A1 (en) * | 2013-05-08 | 2014-11-13 | 歌尔声学股份有限公司 | Flat plate type bass loudspeaker |
| CN108513232A (en) * | 2017-02-24 | 2018-09-07 | 密斯工业(深圳)有限公司 | A kind of loud speaker |
| CN109688518A (en) * | 2017-10-18 | 2019-04-26 | 密斯工业(深圳)有限公司 | A kind of more driving audio-frequency modules |
| WO2021056900A1 (en) * | 2019-09-28 | 2021-04-01 | 歌尔股份有限公司 | Sound production device and electronic apparatus |
-
2010
- 2010-05-06 CN CN2010201920802U patent/CN201789621U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611968A (en) * | 2012-02-10 | 2012-07-25 | 陈志豪 | Conductive elastic wave for loudspeaker |
| CN102611968B (en) * | 2012-02-10 | 2015-05-20 | 陈志豪 | Conductive elastic wave for loudspeaker |
| CN102595284A (en) * | 2012-02-20 | 2012-07-18 | 歌尔声学股份有限公司 | Miniature electroacoustic transducer and assembly method thereof |
| WO2013123652A1 (en) * | 2012-02-20 | 2013-08-29 | 歌尔声学股份有限公司 | Miniature electroacoustic transducer and assembling method thereof |
| US9549262B2 (en) | 2012-02-20 | 2017-01-17 | Goertek Inc. | Miniature electroacoustic transducer and assembling method thereof |
| KR101615057B1 (en) * | 2012-02-20 | 2016-04-22 | 고어텍 인크 | Miniature Electroacoustic Transducer and Assembling Method Thereof |
| KR20160005118A (en) * | 2013-05-08 | 2016-01-13 | 고어텍 인크 | Flat Plate Type Bass Loudspeaker |
| WO2014180015A1 (en) * | 2013-05-08 | 2014-11-13 | 歌尔声学股份有限公司 | Flat plate type bass loudspeaker |
| CN103281656A (en) * | 2013-05-08 | 2013-09-04 | 歌尔声学股份有限公司 | Flat plate type bass loudspeaker |
| KR101707083B1 (en) * | 2013-05-08 | 2017-02-15 | 고어텍 인크 | Flat Plate Type Bass Loudspeaker |
| US9788121B2 (en) | 2013-05-08 | 2017-10-10 | Goertek Inc. | Flat plate-type bass loudspeaker |
| CN103281656B (en) * | 2013-05-08 | 2018-03-06 | 歌尔股份有限公司 | Flat woofer |
| CN108513232A (en) * | 2017-02-24 | 2018-09-07 | 密斯工业(深圳)有限公司 | A kind of loud speaker |
| CN109688518A (en) * | 2017-10-18 | 2019-04-26 | 密斯工业(深圳)有限公司 | A kind of more driving audio-frequency modules |
| WO2021056900A1 (en) * | 2019-09-28 | 2021-04-01 | 歌尔股份有限公司 | Sound production device and electronic apparatus |
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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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |