CN105554643A - Voice diaphragm and sound generator with voice diaphragm - Google Patents
Voice diaphragm and sound generator with voice diaphragm Download PDFInfo
- Publication number
- CN105554643A CN105554643A CN201510800298.9A CN201510800298A CN105554643A CN 105554643 A CN105554643 A CN 105554643A CN 201510800298 A CN201510800298 A CN 201510800298A CN 105554643 A CN105554643 A CN 105554643A
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- Prior art keywords
- sound film
- fold line
- decorative pattern
- protuberance
- pattern section
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Abstract
The invention discloses a voice diaphragm and a sound generator with the voice diaphragm. The voice diaphragm comprises a spherical top part which is arranged at the central position and folding ring parts which surround the spherical top part. The folding ring parts are provided with bundles of folds which include multiple fold patterns. Each fold pattern includes a first pattern segment and a second pattern segment. The extension direction of the first pattern segment is intersected with the extension direction of the second pattern segment. Low-frequency distortion can be reduced by the voice diaphragm.
Description
[technical field]
The present invention relates to a kind of sound film, particularly relate to the sound film on a kind of acoustical generator.
[background technology]
Along with the fast development of electronic information technology, increasing microphone device is applied in each electronic product, especially the widely mobile communication equipment of people's application, people are not only concerned about that it is microminiaturized, multi-functional, more require its sound effect high-quality, undistorted.And sound film is as the core component of microphone device, the quality of its design directly affects the performance of acoustical device.
Microphone device on acoustic product generally includes magnetic circuit system and vibrational system, the magnet steel that magnetic circuit system comprises magnetic bowl and is contained in magnetic bowl, form magnetic gap between magnetic bowl and magnet steel, vibrational system comprises the voice coil loudspeaker voice coil that is suspended from magnetic gap and is connected with voice coil loudspeaker voice coil and the sound film being driven and vibrate.The fixed part that sound film related to the present invention generally includes the ball top being positioned at middle position, the ring portion be connected around ball top and with ball top and extends from ring portion.Described ring portion is provided with the lug boss of annular, and the height of described lug boss is the same.The sound film of this structure, in vibration processes, easily causes sound film folding line or sink during sound film up-down vibration, make sound film produce polarization, cause the low-frequency distortion of acoustical generator high.
Therefore, be necessary to provide a kind of novel sound film.
[summary of the invention]
The object of the present invention is to provide a kind of sound film reducing low-frequency distortion.
Technical scheme of the present invention is as follows: a kind of sound film, it comprises the ball top that is positioned at middle position and the ring portion around described ball top, described ring portion is provided with some fold lines, each fold line comprises the first decorative pattern section and the second decorative pattern section, and the bearing of trend of described first decorative pattern section is crossing with the bearing of trend of described second decorative pattern section.
Above-mentioned sound film, described ring portion is provided with annular protrusion, and described fold line is located on described protuberance.
Above-mentioned sound film, described fold line radially distributes to the center of described sound film.
Above-mentioned sound film, described first decorative pattern section is crossing towards the bearing of trend of sound center membrane with the second decorative pattern section towards the bearing of trend of described sound center membrane.
Above-mentioned sound film, described protuberance is track type, and described fold line is positioned at the corner of described protuberance.
A kind of acoustical generator, comprise magnetic circuit system, vibrational system and accommodate the frame of magnetic circuit system and vibrational system, described vibrational system comprises sound film described above.
Above-mentioned acoustical generator, the protuberance of described sound film protrudes to the direction away from described magnetic circuit system.
Preferably, fold line protrudes from described protuberance, and the protrusion direction of described fold line is identical with the protrusion direction of described protuberance.
Beneficial effect of the present invention is: because the protuberance in ring portion is provided with the bundle of folds, and the bundle of folds comprises some fold lines be made up of two crossing decorative pattern sections, increases the compliance of sound film thus, reduces low-frequency distortion, improves the performance of sound film.
[accompanying drawing explanation]
Fig. 1 is the exploded view of acoustical generator of the present invention;
Fig. 2 is the stereogram of the sound film of acoustical generator of the present invention;
Fig. 3 is the enlarged drawing of the a-quadrant of Fig. 2.
[embodiment]
Below in conjunction with drawings and embodiments, the invention will be further described.
As shown in Figure 1, for acoustical generator of the present invention, its involving vibrations system, magnetic circuit system 40 and accommodate the frame 50 of described vibrational system and magnetic circuit system 40, the voice coil loudspeaker voice coil 30 that described vibrational system comprises sound film 100 and the driving sound film 100 that is connected with described sound film 100 vibrates.
As shown in Figures 2 and 3, described sound film 100 comprises the ball top 10 that is positioned at middle position and the ring portion 20 around ball top 10, the fixed part 23 that described ring portion 20 comprises the connecting portion 21 be connected with described ball top 10, the annular protrusion 22 extended from described connecting portion 21 and extends outward from described protuberance 22.Described protuberance 22 protrudes to the direction away from described magnetic circuit system 40.Described sound film 100 is rectangle, and described protuberance 22 is track type, and ball top 10 is tabular, protuberance 22 is around described ball top 10, in addition, protuberance 22 is protruding arcuate structure and protrudes the surface at described ball top 10, can ensure that sound film 100 can freely up-down vibration.
In addition, protuberance 22 is provided with the bundle of folds 220 and is used for suppressing polarization, improves the acoustical behavior of sound film 100.The bundle of folds 220 can regulate the distribution in ring portion 20 as required.Generally for balance sound vibration of membrane region, avoid sound film polarization, the bundle of folds is at least provided with two groups, and two groups of bundles of folds are oppositely arranged, symmetrical, be evenly distributed on protuberance.In the present embodiment, the bundle of folds 220 is arranged on four corners of protuberance 22, each bundle of folds 220 comprises the fold line 221 of some rules, and this fold line 221 can protrude from this protuberance 22 surface, and the protrusion direction of this fold line 221 is identical with the protrusion direction of protuberance 22.In other embodiments, this fold line 221 also can be formed by protuberance 22 surface indentation.Fold line 221 comprises the first decorative pattern section 2211 and the second decorative pattern section 2212, this first decorative pattern section 2211 and the second decorative pattern section 2212 elongated, the bearing of trend of this first decorative pattern section 2211 and the second decorative pattern section 2212 intersects.In the present embodiment, this first decorative pattern section 2211 is crossing on the direction at the center near sound film 100 with the second decorative pattern section 2212, on the direction at the center away from sound film 100 separately, roughly in " dovetail " shape.Fold line 221 effectively can reduce low-frequency distortion; In addition, fold line 221 radially distributes and center to described sound film 100 is radiated, and the first decorative pattern section 2211 and the second decorative pattern section 2212 intersect on the bearing of trend at the center towards sound film.Effectively solve the problem easily producing fold when sound film 100 vibrates thus, effectively suppress polarization, making sound film more steady when vibrating, increasing the compliance of sound film, obtaining more excellent low frequency performance.
Above-described is only embodiments of the present invention, it should be pointed out that for the person of ordinary skill of the art at this, without departing from the concept of the premise of the invention, can also make improvement, but these all belongs to protection scope of the present invention.
Claims (9)
1. a sound film, it comprises the ball top that is positioned at middle position and the ring portion around described ball top, it is characterized in that: described ring portion is provided with some fold lines, each fold line comprises the first decorative pattern section and the second decorative pattern section, and the bearing of trend of described first decorative pattern section is crossing with the bearing of trend of described second decorative pattern section.
2. sound film according to claim 1, is characterized in that, described ring portion is provided with annular protrusion, and described fold line is located on described protuberance.
3. sound film according to claim 2, is characterized in that: described fold line is the figure of rule.
4. sound film according to claim 2, is characterized in that: described fold line radially distributes to the center of described sound film.
5. sound film according to claim 4, is characterized in that, described first decorative pattern section is crossing towards the bearing of trend of sound center membrane with the second decorative pattern section towards the bearing of trend of described sound center membrane.
6. sound film according to claim 2, is characterized in that: described protuberance is track type, and described fold line is positioned at the corner of described protuberance.
7. an acoustical generator, comprises magnetic circuit system, vibrational system and accommodates the frame of magnetic circuit system and vibrational system, it is characterized in that: described vibrational system comprises the sound film as described in claim as arbitrary in claim 1-6.
8. acoustical generator according to claim 7, is characterized in that: the protuberance of described sound film protrudes to the direction away from described magnetic circuit system.
9. acoustical generator according to claim 8, is characterized in that, described fold line protrudes from described protuberance, and the protrusion direction of described fold line is identical with the protrusion direction of described protuberance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510800298.9A CN105554643A (en) | 2015-11-19 | 2015-11-19 | Voice diaphragm and sound generator with voice diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510800298.9A CN105554643A (en) | 2015-11-19 | 2015-11-19 | Voice diaphragm and sound generator with voice diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105554643A true CN105554643A (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510800298.9A Pending CN105554643A (en) | 2015-11-19 | 2015-11-19 | Voice diaphragm and sound generator with voice diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105554643A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010138A1 (en) * | 2016-07-14 | 2018-01-18 | 易力声科技(深圳)有限公司 | Arc line loudspeaker diaphragm |
| CN108600919A (en) * | 2018-07-04 | 2018-09-28 | 歌尔股份有限公司 | A kind of vibrating diaphragm and sound-producing device |
| CN108900955A (en) * | 2018-06-27 | 2018-11-27 | 歌尔股份有限公司 | Vibrating diaphragm and loudspeaker |
| CN109936804A (en) * | 2019-02-28 | 2019-06-25 | 瑞声光电科技(常州)有限公司 | Sound film and microphone device with the sound film |
| US11297438B2 (en) | 2018-10-19 | 2022-04-05 | Sound Solutions International Co., Ltd. | Electrodynamic acoustic transducer having a polygonal membrane with improved compliance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010090201A1 (en) * | 2009-02-09 | 2010-08-12 | 三洋電機株式会社 | Speaker unit and portable information terminal |
| CN201869353U (en) * | 2010-11-15 | 2011-06-15 | 歌尔声学股份有限公司 | Miniature moving-coil sounder diaphragm |
| CN101180915B (en) * | 2005-05-25 | 2012-09-05 | 楼氏电子亚洲有限公司 | Improved membrane for an electroacoustic transducer |
-
2015
- 2015-11-19 CN CN201510800298.9A patent/CN105554643A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101180915B (en) * | 2005-05-25 | 2012-09-05 | 楼氏电子亚洲有限公司 | Improved membrane for an electroacoustic transducer |
| WO2010090201A1 (en) * | 2009-02-09 | 2010-08-12 | 三洋電機株式会社 | Speaker unit and portable information terminal |
| CN201869353U (en) * | 2010-11-15 | 2011-06-15 | 歌尔声学股份有限公司 | Miniature moving-coil sounder diaphragm |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010138A1 (en) * | 2016-07-14 | 2018-01-18 | 易力声科技(深圳)有限公司 | Arc line loudspeaker diaphragm |
| CN108900955A (en) * | 2018-06-27 | 2018-11-27 | 歌尔股份有限公司 | Vibrating diaphragm and loudspeaker |
| WO2020000982A1 (en) * | 2018-06-27 | 2020-01-02 | 歌尔股份有限公司 | Diaphragm and loudspeaker |
| CN108600919A (en) * | 2018-07-04 | 2018-09-28 | 歌尔股份有限公司 | A kind of vibrating diaphragm and sound-producing device |
| US11297438B2 (en) | 2018-10-19 | 2022-04-05 | Sound Solutions International Co., Ltd. | Electrodynamic acoustic transducer having a polygonal membrane with improved compliance |
| CN109936804A (en) * | 2019-02-28 | 2019-06-25 | 瑞声光电科技(常州)有限公司 | Sound film and microphone device with the sound film |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |
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| WD01 | Invention patent application deemed withdrawn after publication |