CN105323697A - Manufacture method of composite vibrating diaphragm and vibrating diaphragm manufactured by method - Google Patents
Manufacture method of composite vibrating diaphragm and vibrating diaphragm manufactured by method Download PDFInfo
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- CN105323697A CN105323697A CN201410363358.0A CN201410363358A CN105323697A CN 105323697 A CN105323697 A CN 105323697A CN 201410363358 A CN201410363358 A CN 201410363358A CN 105323697 A CN105323697 A CN 105323697A
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Abstract
The invention discloses a manufacture method of a composite vibrating diaphragm and a vibrating diaphragm manufactured by the method. The method includes the following steps that: a, a powder reinforcement material and a hot melt adhesive are mixed, so that the hot melt adhesive can coat the reinforcement material, and therefore, a first mixture can be formed; b, the first mixture and a thermosetting adhesive are mixed so as to form a second mixture; c, a vibrating diaphragm raw material is coated with the second mixture, and the vibrating diaphragm raw material and the second mixture are heated; the second mixture and the vibrating diaphragm raw material are cooled, so that the second mixture can be cured on the vibrating diaphragm raw material, when the second mixture is baked under high temperature, the hot melt adhesive wrapping the reinforcement material inside will be melt and is uniformly fused with the thermosetting adhesive, and the thermosetting adhesive is also cured with high-temperature baking, and therefore, the reinforcement material can be uniformly cured on the vibrating diaphragm raw material, and at the same time, the rigidity and strength of the structure of the composite vibrating diaphragm can be enhanced.
Description
Technical field
the present invention relates to loud speaker field, particularly a kind of manufacture method of composite diaphragm and the vibrating diaphragm of use the method manufacture.
Background technology
along with the development of intelligent mobile phone, Microspeaker has also been driven to research and develop agitation.In order to the sound enabling loud speaker export more superior acoustic characteristic, vibrating diaphragm material miscellaneous is constantly developed.Wherein, part loud speaker have employed the design of composite diaphragm.
the manufacture method of conventional composite vibrating diaphragm be first by supporting material Homogeneous phase mixing such as such as aluminium oxide, silicon dioxide or CNT (carbon nano-tube) after adhesive agent (thermosetting resin of such as epoxy resin and so on), be applied on the surface of the former material of a vibrating diaphragm again, toast through hot-blast oven more afterwards, make supporting material and thermosetting resin cured on the former material of vibrating diaphragm, finally cool and make.But the supporting material of this type is the nanometer powder belonging to porous particles mostly, the most non-constant of its tack for adhesive agent.Therefore, when this vibrating diaphragm produced by type supporting material is at high vibration or by such environmental effects, supporting material easily comes off from the former material of vibrating diaphragm, and then affects the physical characteristic of composite diaphragm and the output tonequality of loud speaker.
Summary of the invention
the object of this invention is to provide one can make supporting material and adhesive agent fully merge, and is not easy the composite diaphragm manufacture method that comes off from the former material of vibrating diaphragm.
for achieving the above object, the technical solution used in the present invention is: a kind of manufacture method of composite diaphragm, comprises the following steps:
a) will mix with PUR in pulverous supporting material, and make the coated described supporting material of described PUR and form the first mixture;
b) described first mixture is mixed mutually with hot-setting adhesive, to form the second mixture;
c) be coated with described second mixture to the former material of vibrating diaphragm, heat subsequently;
d) cool described second mixture and the former material of described vibrating diaphragm, make described second mixture solidified be incorporated into the former material of described vibrating diaphragm.
preferably, described supporting material is nanometer powder.
further preferably, the material of wherein said supporting material be aluminium oxide, silicon dioxide, zirconia, titanium dioxide, calcium phosphate, aluminium hydroxide, zinc oxide, carborundum, fullerene, CNT (carbon nano-tube) and Graphene any one, or be selected from the mixture of above-mentioned material.
preferably, step c) in, adopt the mode of curtain to make described second mixture be applied to the surface of the former material of described vibrating diaphragm.
a kind of composite diaphragm, comprise the former material of vibrating diaphragm, described vibrating diaphragm uses the manufacture method of above-mentioned composite diaphragm to make the surface of the former material of described vibrating diaphragm be coated with the mixture formed mixed by PUR, hot-setting adhesive and Powdered supporting material at least partly.
preferably, described supporting material is nanometer ground rice end.
because technique scheme is used, the present invention compared with prior art has following advantages:
because the present invention is when high-temperature baking the second mixture, the PUR of its inner coated supporting material can melt and merge with hot-setting adhesive, and hot-setting adhesive also can solidify along with high-temperature baking, make supporting material can be solidificated in equably on the former material of vibrating diaphragm and be not easy to come off from the former material of vibrating diaphragm, and strengthen rigidity and the intensity of composite diaphragm structure, and then optimize the acoustic characteristic of loud speaker institute output sound simultaneously.
Accompanying drawing explanation
accompanying drawing 1 is the preparation flow chart of embodiment one.
wherein: S1-S4, step.
Embodiment
below in conjunction with embodiment shown in the drawings, the invention will be further described:
embodiment one: shown in accompanying drawing 1, the key step of composite diaphragm structure manufacture method of the present invention is described as follows:
first perform step S1, will mix mutually with PUR jelly in pulverous supporting material, and in mixed process, keep the temperature of PUR, allow PUR can coated supporting material equably, to form the first mixture.Wherein supporting material can be selected from any one or its mixture in aluminium oxide, silicon dioxide, zirconia, titanium dioxide, calcium phosphate, aluminium hydroxide, zinc oxide, carborundum, fullerene, CNT (carbon nano-tube) and Graphene, and be nanometer powder, and the material of PUR can be selected from cellulose esters, vinyl polymer, polyvinyl alcohol, polyvinyl chloride, polyacrylate, poly-a-cyanoacrylate, Pioloform, polyvinyl acetal, polyamide, ethylene vinyl acetate copolymer or styrene-butadiene copolymer etc. any one.
following execution step S2, by the first mixture and hot-setting adhesive Homogeneous phase mixing jelly, and then forms the second mixture.Wherein the material of hot-setting adhesive can be selected from epoxy resin, phenolic resins, Lauxite, melamine formaldehyde resin, organic siliconresin, furane resins, unsaturated polyester (UP), acrylic resin, polyimides, polybenzimidazoles, in phenolic aldehyde-polyvinyl acetal, phenolic aldehyde-polyamide, phenolic aldehyde-epoxy resin or epoxy-polyamide any one.
then step S3 is performed, second mixture is applied to equably on the former material of plane vibrating diaphragm, use curtain to be applied on the surface of the former material of vibrating diaphragm by the second mixture in the present embodiment system, the technology due to curtain is not the emphasis place of this case, therefore will not describe in detail at this.The former material of vibrating diaphragm coating completed afterwards and the second mixture are sent to baking box and toast.Perform step S4 after baking, allow the former material of vibrating diaphragm and the second mixture cool, and then make the second mixture solidified on the surface of the former material of vibrating diaphragm, form composite diaphragm structure.
the present invention is in step S3, former for vibrating diaphragm material and the second mixture are sent to baking box when carrying out high-temperature baking, because supporting material has been covered by within PUR in advance in step S1, and both PUR and hot-setting adhesive material character is close, therefore when the former material of vibrating diaphragm and the second mixture are transferred into baking box and make high-temperature baking, PUR first can melt and merge with hot-setting adhesive, and hot-setting adhesive also can solidify because of the relation of high-temperature baking, enable supporting material be solidificated on the former material of vibrating diaphragm equably with hot-setting adhesive, therefore not easily come off from the former material of vibrating diaphragm.Solidify complete intensity and the rigidity that more can strengthen vibrating diaphragm and the overall composite diaphragm structure formed of the second mixture, optimize the acoustic characteristic of loud speaker institute output sound.
above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (6)
1. a manufacture method for composite diaphragm, comprises the following steps:
A) will mix with PUR in pulverous supporting material, and make the coated described supporting material of described PUR and form the first mixture;
B) described first mixture is mixed mutually with hot-setting adhesive, to form the second mixture;
C) be coated with described second mixture to the former material of vibrating diaphragm, heat subsequently;
D) cool described second mixture and the former material of described vibrating diaphragm, make described second mixture solidified be incorporated into the former material of described vibrating diaphragm.
2. the manufacture method of a kind of composite diaphragm according to claim 1, is characterized in that: described supporting material is nanometer powder.
3. the manufacture method of a kind of composite diaphragm according to claim 2, it is characterized in that: the material of wherein said supporting material be aluminium oxide, silicon dioxide, zirconia, titanium dioxide, calcium phosphate, aluminium hydroxide, zinc oxide, carborundum, fullerene, CNT (carbon nano-tube) and Graphene any one, or be selected from the mixture of above-mentioned material.
4. the manufacture method of a kind of composite diaphragm according to claim 1, is characterized in that: step c) in, adopt the mode of curtain to make described second mixture be applied to the surface of the former material of described vibrating diaphragm.
5. a composite diaphragm, comprise the former material of vibrating diaphragm, it is characterized in that: described vibrating diaphragm uses the manufacture method of the composite diaphragm described in claim 1 to make the surface of the former material of described vibrating diaphragm be coated with the mixture formed mixed by PUR, hot-setting adhesive and Powdered supporting material at least partly.
6. composite diaphragm according to claim 5, is characterized in that: described supporting material is nanometer powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410363358.0A CN105323697A (en) | 2014-07-28 | 2014-07-28 | Manufacture method of composite vibrating diaphragm and vibrating diaphragm manufactured by method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410363358.0A CN105323697A (en) | 2014-07-28 | 2014-07-28 | Manufacture method of composite vibrating diaphragm and vibrating diaphragm manufactured by method |
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| CN105323697A true CN105323697A (en) | 2016-02-10 |
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| CN201410363358.0A Pending CN105323697A (en) | 2014-07-28 | 2014-07-28 | Manufacture method of composite vibrating diaphragm and vibrating diaphragm manufactured by method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162450A (en) * | 2016-08-02 | 2016-11-23 | 常州阿木奇声学科技有限公司 | A kind of vibrating diaphragm and preparation method thereof |
| CN108513244A (en) * | 2017-02-27 | 2018-09-07 | 识骅科技股份有限公司 | Carbon nanotubes composite membrane vibration and its manufacturing method for loud speaker |
| WO2019036900A1 (en) * | 2017-08-22 | 2019-02-28 | 周金进 | Method for coating membrane on surface of speaker diaphragm |
| CN112080024A (en) * | 2020-08-24 | 2020-12-15 | 深圳市信维通信股份有限公司 | Composite diaphragm and preparation method thereof |
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| US20100288579A1 (en) * | 2007-07-02 | 2010-11-18 | Norman Gerkinsmeyer | Membrane having multipart structure |
| CN102333269A (en) * | 2011-07-07 | 2012-01-25 | 吉林省神韵电子科技开发股份有限公司 | Loudspeaker diaphragm made of low density polyethylene nano-composite |
| CN102344640A (en) * | 2011-07-07 | 2012-02-08 | 吉林省神韵电子科技开发股份有限公司 | Loudspeaker diaphragm made from ABS (acrylonitrile-butadiene-styrene) copolymer nanocomposite |
| CN103929710A (en) * | 2014-04-25 | 2014-07-16 | 瑞声光电科技(常州)有限公司 | Preparation method of composite vibrating diaphragm |
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2014
- 2014-07-28 CN CN201410363358.0A patent/CN105323697A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100288579A1 (en) * | 2007-07-02 | 2010-11-18 | Norman Gerkinsmeyer | Membrane having multipart structure |
| CN102333269A (en) * | 2011-07-07 | 2012-01-25 | 吉林省神韵电子科技开发股份有限公司 | Loudspeaker diaphragm made of low density polyethylene nano-composite |
| CN102344640A (en) * | 2011-07-07 | 2012-02-08 | 吉林省神韵电子科技开发股份有限公司 | Loudspeaker diaphragm made from ABS (acrylonitrile-butadiene-styrene) copolymer nanocomposite |
| CN103929710A (en) * | 2014-04-25 | 2014-07-16 | 瑞声光电科技(常州)有限公司 | Preparation method of composite vibrating diaphragm |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162450A (en) * | 2016-08-02 | 2016-11-23 | 常州阿木奇声学科技有限公司 | A kind of vibrating diaphragm and preparation method thereof |
| CN108513244A (en) * | 2017-02-27 | 2018-09-07 | 识骅科技股份有限公司 | Carbon nanotubes composite membrane vibration and its manufacturing method for loud speaker |
| WO2019036900A1 (en) * | 2017-08-22 | 2019-02-28 | 周金进 | Method for coating membrane on surface of speaker diaphragm |
| CN112080024A (en) * | 2020-08-24 | 2020-12-15 | 深圳市信维通信股份有限公司 | Composite diaphragm and preparation method thereof |
| WO2022042410A1 (en) * | 2020-08-24 | 2022-03-03 | 深圳市信维通信股份有限公司 | Composite diaphragm and preparation method therefor |
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