CN105142078A - Diaphragm and loudspeaker provided with diaphragm - Google Patents
Diaphragm and loudspeaker provided with diaphragm Download PDFInfo
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- CN105142078A CN105142078A CN201510598297.0A CN201510598297A CN105142078A CN 105142078 A CN105142078 A CN 105142078A CN 201510598297 A CN201510598297 A CN 201510598297A CN 105142078 A CN105142078 A CN 105142078A
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Abstract
The invention discloses a diaphragm and a loudspeaker provided with the diaphragm, and relates to the technical field of electroacoustic products. The diaphragm comprises a base layer, the base layer comprises an edge portion, a folding ring portion, and a sphere top portion connected in sequence from the outside to the inside, the base layer is formed by at least a layer of plastic film, the base layer positioned at the position of the sphere top portion is covered by a surface layer, and the surface layer is made of the carbon material. According to the diaphragm and the loudspeaker provided with the diaphragm, technical problems of poor hear resistance and high frequency stability of the diaphragm in the prior art are solved, in the condition of high temperature and high frequency, the tone stability is higher, the sound quality is high, the service lifetime is long, and the requirement of high sound quality of electronic equipment for people can be met.
Description
Technical field
The present invention relates to electro-acoustic product technical field, particularly a kind of compound vibrating diaphragm and be provided with the loud speaker of this vibrating diaphragm.
Background technology
Loud speaker is a kind of important acoustic element in portable electric appts, spreads out of for converting the sound wave signal of telecommunication to voice signal, is a kind of energy conversion device.Loud speaker generally includes vibrational system and magnetic circuit system, vibrational system comprises the vibrating diaphragm and voice coil loudspeaker voice coil that combine, vibrating diaphragm comprises edge part that ecto-entad combines successively, ring portion and ball top, vibrating diaphragm is the vitals of loud speaker, there is vital effect to the sound reproduction performance of loud speaker, which determine loud speaker by the conversion quality of electric energy to acoustic energy.
Existing vibrating diaphragm is normally made up of the plastic film of individual layer, and this vibrating diaphragm thermal endurance is poor, poor rigidity, yielding, high frequency stability is not enough, thus causes loud speaker easily to produce noise, combination property is poor, is difficult to meet the requirement of people to electronic equipment high sound quality.
Summary of the invention
For above defect, first technical problem to be solved by this invention is to provide a kind of vibrating diaphragm, and this vibrating diaphragm good heat resistance, not yielding, high frequency stability is high.
Based on same inventive concept, second technical problem to be solved by this invention is to provide a kind of loud speaker, and this loud speaker is without noise, and when high temperature and high frequency, tonequality stability is high, can meet the requirement of people to electronic equipment high sound quality.
For solving above-mentioned first technical problem, technical scheme of the present invention is:
A kind of vibrating diaphragm, comprise basic unit, described basic unit comprises edge part that ecto-entad connects successively, ring portion and ball top, and described basic unit is made up of at least layer of plastic film, the position that described basic unit is positioned at described ball top is coated with one deck top layer, and the material on described top layer is carbon materials.
Wherein, described carbon materials is amorphous carbon.
Wherein, the pore of described amorphous carbon is spherical, and the aperture of described pore is 5 μm ~ 150 μm, and density is 0.3 ~ 0.9g/cm
3.
Wherein, the thickness on described top layer is 0.01mm-3mm.
Wherein, the shape and size on described top layer are consistent with described ball top.
Wherein, described top layer is combined by technique for sticking with described basic unit.
Wherein, described basic unit is made up of plastic film described in one deck, and described plastic film is the one in PEEK film, TPU film, PET film or PEN film.
Wherein, described basic unit is made up of at least two-layer described plastic film, and is formed by stacking by of the same race or not of the same race in PEEK film, TPU film, PET film or PEN film.
For solving above-mentioned second technical problem, technical scheme of the present invention is:
A kind of loud speaker, involving vibrations system and magnetic circuit system, described vibrational system comprises the vibrating diaphragm and voice coil loudspeaker voice coil that combine, and described vibrating diaphragm is above-mentioned vibrating diaphragm.
After have employed technique scheme, the invention has the beneficial effects as follows:
Because vibrating diaphragm of the present invention comprises the basic unit be made up of plastic film, the basic unit being positioned at ball tip position is coated with one deck top layer, and the material on this top layer is carbon materials.Carbon materials rigidity is large, and thermal endurance is strong, but the vibrating diaphragm that simple carbon materials is made easily is shattered when vibrating.Carbon materials larger for rigidity is combined on flexible stronger plastic film by the present invention, make use of the characteristic of bi-material fully, while ensure that vibrating diaphragm compliance, effectively add the rigidity of its ball top bit, namely vibrating diaphragm of the present invention is not easily deformed, is not easily shattered again; Meanwhile, resistance to elevated temperatures is greatly improved, and effectively raise its stability when high temperature and high frequency, longer service life, improves high frequency tonequality and the useful life of loud speaker greatly.
Because the vibrating diaphragm of loud speaker of the present invention is above-mentioned vibrating diaphragm, thus effectively reduce the noise of loud speaker when high-temperature high-frequency, tonequality stability during high-temperature high-frequency is high, can meet the requirement of people to electronic equipment high sound quality, simultaneously longer service life.
In sum, vibrating diaphragm of the present invention and the loud speaker being provided with this vibrating diaphragm solve vibrating diaphragm poor heat resistance in prior art, the technical problems such as high frequency stability difference, vibrating diaphragm of the present invention and be provided with this vibrating diaphragm loud speaker high-temperature high-frequency situation under tonequality stability higher, sound quality is high, long service life, can meet the requirement of people to electronic equipment high sound quality.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of vibrating diaphragm of the present invention;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
In figure: 10, edge part, 12, ring portion, 14, ball top, 20, basic unit, the 200, first basic unit, the 202, second basic unit, the 204, the 3rd basic unit, the 206, the 4th basic unit, 22, top layer.
Embodiment
Below in conjunction with drawings and Examples, set forth the present invention further.
Embodiment one:
As Fig. 1 and Fig. 2 jointly shown in, a kind of vibrating diaphragm, comprises basic unit 20, and basic unit 20 comprises edge part 10 that ecto-entad connects as one successively, ring portion 12 and ball top 14.Basic unit 20 is made up of at least layer of plastic film, and the preferred basic unit 20 of present embodiment is formed by stacking by four layers of plastic film, and four layers of plastic film are defined as the first basic unit 202 of basic unit 200, second, the 3rd basic unit 204 and the 4th basic unit 206 successively.The position that basic unit 20 is positioned at ball top 14 is coated with one deck top layer 22, the shape and size on top layer 22 are consistent with ball top 14, namely top layer 22 covers whole ball top 14, and its shape is consistent with the shape of vibrating diaphragm, as circular, square, track type and other polygon etc.
As Fig. 1 and Fig. 2 jointly shown in, the material on top layer 22 is carbon materials, and be preferably the amorphous carbon of loose structure in present embodiment, the internal structure of this amorphous carbon is: the shape of pore is spherical, the aperture of pore is 5 μm ~ 150 μm, and the density of pore is 0.3 ~ 0.9g/cm
3.The thickness on top layer 22 is 0.01mm ~ 3mm, is pasted onto basic unit 20 on the surface of ring portion 12 raised sides by gum or gluing, is namely pasted onto on the surface of the first basic unit 200.
As Fig. 1 and Fig. 2 jointly shown in, be PEEK (PolyetherEtherKetone for forming the plastic film of basic unit 20, polyether-ether-ketone) film, TPU (Thermoplasticpolyurethanes, thermo-plastic polyurethane's elastomer rubber) film, PET (polyethyleneterephthalate, PETG) film and PEN (polyethylenenaphthalate, PEN) film etc., but be not limited to above-mentioned four kinds.The first basic unit 202 of basic unit 200, second in present embodiment, the 3rd basic unit 204 and the 4th basic unit 206 can be formed by stacking by the film of four kinds of unlike materials respectively, also can be that the four-level membrane be made up of a kind of, two or three film is formed by stacking.
The number of plies of basic unit 20 is not limited to above-mentioned four layers, and technical staff can select the number of plies of basic unit according to the acoustic performance requirements of loud speaker, as one deck, two-layer, three layers, five layers etc.When basic unit 20 is made up of layer of plastic film, plastic film is the one in PEEK film, TPU film, PET film or PEN film, when basic unit 20 is made up of at least two layers of plastic thin films, can be formed by stacking by of the same race or not of the same race in PEEK film, TPU film, PET film or PEN film.
The present invention by compound one deck carbon materials on the plastic film layers being positioned at ball top, thus effectively adds the rigidity of its ball top bit while ensureing vibrating diaphragm compliance, namely vibrating diaphragm of the present invention is not easily deformed, is not easily shattered again; Meanwhile, resistance to elevated temperatures is greatly improved, and effectively raise its stability when high temperature and high frequency, longer service life, can improve high frequency tonequality and the useful life of loud speaker greatly.
Embodiment two:
A kind of loud speaker, involving vibrations system and magnetic circuit system, vibrational system comprises the vibrating diaphragm and voice coil loudspeaker voice coil that combine, and vibrating diaphragm is the vibrating diaphragm described in embodiment one.
Because loud speaker of the present invention have employed the vibrating diaphragm described in embodiment one, reduce its noise when high-temperature high-frequency greatly, tonequality stability during high-temperature high-frequency is high, can meet the requirement of people to electronic equipment high sound quality, simultaneously longer service life.
The name of the first basic unit related in this specification, the second basic unit, the 3rd basic unit and the 4th basic unit is only be difference technical characteristic, does not represent the position relationship between each layer and binding sequence.
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 made, all drop within protection scope of the present invention.
Claims (9)
1. vibrating diaphragm, it is characterized in that, comprise basic unit, described basic unit comprises edge part that ecto-entad connects successively, ring portion and ball top, described basic unit is made up of at least layer of plastic film, the position that described basic unit is positioned at described ball top is coated with one deck top layer, and the material on described top layer is carbon materials.
2. vibrating diaphragm according to claim 1, is characterized in that, described carbon materials is amorphous carbon.
3. vibrating diaphragm according to claim 2, is characterized in that, the pore of described amorphous carbon is spherical, and the aperture of described pore is 5 μm ~ 150 μm, and density is 0.3 ~ 0.9g/cm
3.
4. vibrating diaphragm according to claim 3, is characterized in that, the thickness on described top layer is 0.01mm ~ 3mm.
5. vibrating diaphragm according to claim 4, is characterized in that, the shape and size on described top layer are consistent with described ball top.
6. vibrating diaphragm according to claim 5, is characterized in that, described top layer is combined by technique for sticking with described basic unit.
7. the vibrating diaphragm according to the arbitrary claim of claim 1 to 6, is characterized in that, described basic unit is made up of plastic film described in one deck, and described plastic film is the one in PEEK film, TPU film, PET film or PEN film.
8. the vibrating diaphragm according to the arbitrary claim of claim 1 to 6, is characterized in that, described basic unit is made up of at least two-layer described plastic film, and is formed by stacking by of the same race or not of the same race in PEEK film, TPU film, PET film or PEN film.
9. loud speaker, involving vibrations system and magnetic circuit system, described vibrational system comprises the vibrating diaphragm and voice coil loudspeaker voice coil that combine, it is characterized in that, described vibrating diaphragm is the vibrating diaphragm described in the arbitrary claim of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598297.0A CN105142078B (en) | 2015-09-18 | 2015-09-18 | Vibrating diaphragm and loudspeaker equipped with the vibrating diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598297.0A CN105142078B (en) | 2015-09-18 | 2015-09-18 | Vibrating diaphragm and loudspeaker equipped with the vibrating diaphragm |
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| CN105142078A true CN105142078A (en) | 2015-12-09 |
| CN105142078B CN105142078B (en) | 2019-03-05 |
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| CN201510598297.0A Active CN105142078B (en) | 2015-09-18 | 2015-09-18 | Vibrating diaphragm and loudspeaker equipped with the vibrating diaphragm |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792078A (en) * | 2016-03-04 | 2016-07-20 | 歌尔声学股份有限公司 | Loudspeaker diaphragm, manufacturing method thereof and moving coil type loudspeaker |
| CN105933831A (en) * | 2016-04-22 | 2016-09-07 | 歌尔声学股份有限公司 | Vibrating diaphragm and micro acoustic generator equipped with vibrating diaphragm |
| CN106162454A (en) * | 2016-08-31 | 2016-11-23 | 歌尔股份有限公司 | The diaphragm of loudspeaker, loudspeaker monomer and electronic equipment |
| CN111464921A (en) * | 2020-05-12 | 2020-07-28 | 上海鑫亘环保科技有限公司 | Acoustic TPU sound vibration diaphragm and preparation process thereof |
| CN114105667A (en) * | 2020-08-28 | 2022-03-01 | 常州驰科光电科技有限公司 | Novel ball top material and preparation method thereof |
| US11368791B2 (en) | 2016-03-04 | 2022-06-21 | Goertek Inc. | Speaker vibration diaphragm and method for manufacturing the same, and moving-coil speaker |
| US20220345826A1 (en) * | 2019-09-29 | 2022-10-27 | Goertek Inc. | Conductive film for a sound generation device and the sound generation device |
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| WO2014104003A1 (en) * | 2012-12-26 | 2014-07-03 | 三菱鉛筆株式会社 | Carbonaceous acoustic diaphragm and process for producing same |
| CN104320741A (en) * | 2014-10-22 | 2015-01-28 | 李亚宁 | Audio frequency device with graphene composite sound film |
| CN204578769U (en) * | 2015-01-09 | 2015-08-19 | 加一联创电子科技有限公司 | A kind of vibrating membrane and loud speaker |
| CN204634038U (en) * | 2014-10-22 | 2015-09-09 | 李亚宁 | A kind of audio devices with compound voice diaphragm |
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| CN102045623A (en) * | 2009-10-23 | 2011-05-04 | 清华大学 | Vibration diaphragm, preparation method thereof and speaker with same |
| WO2014104003A1 (en) * | 2012-12-26 | 2014-07-03 | 三菱鉛筆株式会社 | Carbonaceous acoustic diaphragm and process for producing same |
| CN104320741A (en) * | 2014-10-22 | 2015-01-28 | 李亚宁 | Audio frequency device with graphene composite sound film |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792078A (en) * | 2016-03-04 | 2016-07-20 | 歌尔声学股份有限公司 | Loudspeaker diaphragm, manufacturing method thereof and moving coil type loudspeaker |
| US11368791B2 (en) | 2016-03-04 | 2022-06-21 | Goertek Inc. | Speaker vibration diaphragm and method for manufacturing the same, and moving-coil speaker |
| CN105933831A (en) * | 2016-04-22 | 2016-09-07 | 歌尔声学股份有限公司 | Vibrating diaphragm and micro acoustic generator equipped with vibrating diaphragm |
| WO2017181536A1 (en) * | 2016-04-22 | 2017-10-26 | 歌尔股份有限公司 | Diaphragm and miniature speaker having same |
| CN105933831B (en) * | 2016-04-22 | 2020-05-12 | 歌尔股份有限公司 | Vibrating diaphragm and miniature sounder provided with same |
| US10856083B2 (en) | 2016-04-22 | 2020-12-01 | Goertek Inc. | Diaphragm and miniature speaker comprising same |
| CN106162454A (en) * | 2016-08-31 | 2016-11-23 | 歌尔股份有限公司 | The diaphragm of loudspeaker, loudspeaker monomer and electronic equipment |
| CN106162454B (en) * | 2016-08-31 | 2021-10-08 | 歌尔股份有限公司 | Loudspeaker diaphragm, loudspeaker monomer and electronic equipment |
| US20220345826A1 (en) * | 2019-09-29 | 2022-10-27 | Goertek Inc. | Conductive film for a sound generation device and the sound generation device |
| CN111464921A (en) * | 2020-05-12 | 2020-07-28 | 上海鑫亘环保科技有限公司 | Acoustic TPU sound vibration diaphragm and preparation process thereof |
| CN111464921B (en) * | 2020-05-12 | 2022-04-01 | 上海鑫亘环保科技有限公司 | Acoustic TPU sound vibration diaphragm and preparation process thereof |
| CN114105667A (en) * | 2020-08-28 | 2022-03-01 | 常州驰科光电科技有限公司 | Novel ball top material and preparation method thereof |
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| CN105142078B (en) | 2019-03-05 |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
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