CN107454544A - A kind of diaphragm of loudspeaker preparation method based on graphene and PEI - Google Patents
A kind of diaphragm of loudspeaker preparation method based on graphene and PEI Download PDFInfo
- Publication number
- CN107454544A CN107454544A CN201710698518.0A CN201710698518A CN107454544A CN 107454544 A CN107454544 A CN 107454544A CN 201710698518 A CN201710698518 A CN 201710698518A CN 107454544 A CN107454544 A CN 107454544A
- Authority
- CN
- China
- Prior art keywords
- pei
- diaphragm
- loudspeaker
- graphene
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
- H04R2231/001—Moulding aspects of diaphragm or surround
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention discloses a kind of diaphragm of loudspeaker preparation method based on graphene and PEI, it is to pass through the legal doped graphene material of high temperature melting using high molecular polymer PEI as base material, PEI grapheme material mixed serums are formed, then above-mentioned mixture slurry is cooled and solidified and be pressed into compound loudspeaker vibrating diaphragm by using pouring procedure.Composite diaphragm prepared by the present invention has the characteristics of high electroacoustic efficiency, strong toughness, and manufacture craft is simple, is adapted to popularization and application.
Description
Technical field
The present invention relates to the technical field of diaphragm of loudspeaker manufacture, is related specifically to one kind and is based on graphene and polyethers acyl
The preparation method of the diaphragm of loudspeaker of imines (PEI).
Background technology
Loudspeaker is the indispensable acoustics of numerous electronics and IT products (mobile phone, TV, computer, earphone, loudspeaker etc.)
Component；It is the direct interaction interface of people and product.Its performance quality directly affects satisfaction of the people to properties of product.With
Product towards frivolous direction to develop, this requires loudspeaker towards the direction of light and thin type and high tone quality to develop.
Vibrating diaphragm is the core component of loudspeaker, and its design and manufacture, material directly affect the quality of audio, and then influence
The performance and the market competitiveness of related electronic products.In order to improve audio, in recent decades, people exist in field of acoustics always
Endeavour to seek the diaphragm materials of excellent performance.From some natural fibers of early stage as made of the wood pulps such as mulberry skin, Chinese fir vibrating diaphragm, arrive
Existing frequently-used staple fibre, polyester, modified plastics and polypropylene, strengthen the diaphragm materials such as polypropylene.But film strength of shaking,
Some performances such as electroacoustic efficiency, frequency response are frequently difficult to reconcile.It is desirable to can have high intensity to have high electroacoustic effect again
Rate, and the vibrating diaphragm with good frequency response characteristic.
Therefore, new diaphragm of loudspeaker preparation method is had been look in field of acoustics people, is raised with improving as far as possible with improvement
The acoustical behavior of sound device.
The content of the invention
The purpose of invention is to provide a kind of diaphragm of loudspeaker preparation side based on graphene and PEI (PEI)
Method.
To realize object above, the present invention uses implemented below scheme：
A kind of preparation method of compound loudspeaker vibrating diaphragm, lead to using high molecular polymer PEI (PEI) as base material
High temperature fusion process doped graphene material is crossed, forms PEI-grapheme material mixed serum, will be above-mentioned by using pouring procedure
Mixture slurry cools and solidifies and is pressed into composite diaphragm.
Wherein, the high molecular polymer PEI is high purity carbon fiberreinforced PEI materials.
Wherein, the grapheme material is powdery graphite alkene.
Wherein, PEI material contents are 65%~85% in the PEI- grapheme materials mixed serum, and grapheme material contains
Amount 15%~35%.
Wherein, the legal doped graphene material of high temperature melting, shape are passed through using high molecular polymer PEI as base material
Preparation process into PEI- grapheme material mixed serums is：
(1) grapheme material is scattered in ethylene glycol, forms the mixed solution of graphene and ethylene glycol；By polyphosphazene polymer
Compound PEI is fused into PEI solution under the high temperature conditions；
(2) mixed solution of graphene and ethylene glycol addition PEI solution is thoroughly mixed, under the high temperature conditions second two
Alcohol decomposes volatilization, eventually forms PEI- grapheme material mixed serums.
The temperature range of above-mentioned steps (1) and step (2) high temperature is 340 DEG C to 415 DEG C.
Wherein, PEI- grapheme materials mixed serum is cooled and solidified using pouring procedure and to be pressed into composite diaphragm specific
Step is：PEI- grapheme materials mixed serum is injected in vibrating diaphragm mould, vibrating diaphragm is cooled and solidified using the method for natural cooling,
Meanwhile suppressed using high pressure and to form compound loudspeaker vibrating diaphragm.
For the present invention compared with the vibrating diaphragm of correlation, composite diaphragm of the invention has high electroacoustic efficiency, the spy of strong toughness
Point, and manufacture craft is simple.
Brief description of the drawings
Fig. 1 is the Making programme figure of the diaphragm of loudspeaker based on graphene and PEI (PEI) of the present invention；Fig. 2
The making figure of composite diaphragm is formed for PEI- grapheme materials mixed serum.
Specific implementation method
Below by the diaphragm of loudspeaker based on graphene and PEI (PEI) by specific embodiment to the present invention
Preparation method elaborate.
Embodiment 1：
As depicted in figs. 1 and 2, the preparation of the diaphragm of loudspeaker based on graphene and PEI (PEI) of embodiment 1
Method comprises the following steps：
(1) grapheme material is scattered in ethylene glycol, forms the mixed solution of graphene and ethylene glycol；By polyphosphazene polymer
Compound PEI is fused into PEI solution under 340 DEG C to 415 DEG C hot conditions；
(2) mixed solution of graphene and ethylene glycol addition PEI solution is thoroughly mixed, in 340 DEG C to 415 DEG C bars
Ethylene glycol decomposes volatilization under part, and high molecular polymer PEI (PEI) is used as base material doped graphene material, eventually formed
PEI- grapheme material mixed serums, PEI material contents are 65% in mixed serum, grapheme material content 35%.
(3) PEI- grapheme materials mixed serum is cooled and solidified and is pressed into composite diaphragm with pouring procedure, will
In PEI- grapheme materials mixed serum injection vibrating diaphragm mould, vibrating diaphragm is cooled and solidified using the method for natural cooling, meanwhile, use
High pressure suppresses to form compound loudspeaker vibrating diaphragm.The making figure that PEI- grapheme materials mixed serum forms composite diaphragm is specifically shown in figure
Shown in 2, vibrating diaphragm mould 11 is made of the pressure plare of two vibrating diaphragm shapes, then passes through 10 injection PEI- grapheme material mixed serums
Into vibrating diaphragm mould 11, after being sufficiently injected, apply high pressure to pressure plare finally by multi-direction 12,13, ultimately form and raise one's voice
Device vibrating diaphragm.
Embodiment 2：
As shown in figure 1, the preparation method of the diaphragm of loudspeaker based on graphene and PEI (PEI) of embodiment 2
Comprise the following steps：
(1) grapheme material is scattered in ethylene glycol, forms the mixed solution of graphene and ethylene glycol；Solid carbon is fine
Tie up enhanced PEI materials and be fused into PEI solution under the conditions of 340 DEG C to 415 DEG C；
(2) mixed solution of graphene and ethylene glycol addition PEI solution is thoroughly mixed, in 340 DEG C to 415 DEG C bars
Ethylene glycol decomposes volatilization under part, and high purity carbon fiberreinforced PEI materials eventually form PEI- graphite as base material doped graphene material
Alkene material mixed serum, PEI material contents are 85% in mixed serum, grapheme material content 15%.
(3) PEI- grapheme materials mixed serum is cooled and solidified and is pressed into composite diaphragm with pouring procedure, be specially：
PEI- grapheme materials mixed serum is injected in vibrating diaphragm mould, vibrating diaphragm is cooled and solidified using the method for natural cooling, meanwhile, adopt
Suppressed to form compound loudspeaker vibrating diaphragm with high pressure.
The preparation method of compound loudspeaker vibrating diaphragm provided by the invention is simple, production cost is low, and has high electroacoustic efficiency,
The characteristics of strong toughness.
In summary, it the foregoing is only presently preferred embodiments of the present invention, it is all to be done according to scope of the invention as claimed
Equivalent changes and modifications, it should all belong to the covering scope of the claims in the present invention.
Claims (7)
- A kind of 1. diaphragm of loudspeaker preparation method based on graphene and PEI, it is characterised in that：By high molecular polymerization Thing PEI by the legal doped graphene material of high temperature melting, forms PEI- grapheme material mixed serums as base material, Above-mentioned mixture slurry is cooled and solidified and is pressed into compound loudspeaker vibrating diaphragm by using pouring procedure.
- 2. diaphragm of loudspeaker preparation method as claimed in claim 1, it is characterised in that：The high molecular polymer polyetherimide Amine is high purity carbon fiberreinforced PEI materials.
- 3. diaphragm of loudspeaker preparation method as claimed in claim 1, it is characterised in that：The grapheme material is powdered stone Black alkene.
- 4. diaphragm of loudspeaker preparation method as claimed in claim 1, it is characterised in that：By weight, the PEI- graphenes PEI material contents are 65%~85% in material mixed serum, grapheme material content 15%~35%.
- 5. diaphragm of loudspeaker preparation method as claimed in claim 1, it is characterised in that：By high molecular polymer PEI As base material by the legal doped graphene material of high temperature melting, forming the preparation process of PEI- grapheme material mixed serums includes It is as follows,(1) grapheme material is scattered in ethylene glycol, forms the mixed solution of graphene and ethylene glycol；By high molecular polymer PEI is fused into PEI solution under the high temperature conditions；(2) mixed solution of graphene and ethylene glycol addition PEI solution is thoroughly mixed, under the high temperature conditions ethylene glycol point Solution volatilization, eventually forms PEI- grapheme material mixed serums.
- 6. diaphragm of loudspeaker preparation method as claimed in claim 1, it is characterised in that：It is high in the step (1) and step (2) The temperature range of temperature is 340 DEG C to 415 DEG C.
- 7. diaphragm of loudspeaker preparation method as claimed in claim 1, it is characterised in that：Using pouring procedure by PEI- graphenes Material mixed serum cools and solidifies and is pressed into composite diaphragm and concretely comprises the following steps：The injection of PEI- grapheme materials mixed serum is shaken In film die, vibrating diaphragm is cooled and solidified using the method for natural cooling, meanwhile, suppress to form the diaphragm of loudspeaker using high pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710698518.0A CN107454544A (en) | 2017-08-15 | 2017-08-15 | A kind of diaphragm of loudspeaker preparation method based on graphene and PEI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710698518.0A CN107454544A (en) | 2017-08-15 | 2017-08-15 | A kind of diaphragm of loudspeaker preparation method based on graphene and PEI |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107454544A true CN107454544A (en) | 2017-12-08 |
Family
ID=60491243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710698518.0A Pending CN107454544A (en) | 2017-08-15 | 2017-08-15 | A kind of diaphragm of loudspeaker preparation method based on graphene and PEI |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107454544A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024067A (en) * | 2018-09-18 | 2018-12-18 | 深圳市烽火宏声科技有限公司 | Graphene diffuser and its manufacturing method, loudspeaker |
| CN109467930A (en) * | 2018-11-28 | 2019-03-15 | 惠州市威隆展业实业有限公司 | A kind of earphone diaphragm material and preparation method thereof |
| US10841709B2 (en) | 2018-12-06 | 2020-11-17 | Waves Audio Ltd. | Nanocomposite graphene polymer membrane assembly, and manufacturing method thereof |
| WO2022160693A1 (en) * | 2021-01-29 | 2022-08-04 | 歌尔股份有限公司 | Diaphragm and sound producing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4269416A (en) * | 1978-08-04 | 1981-05-26 | Pioneer Electronic Corporation | Head shell for record player tonearms |
| CN103929709A (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 |
| CN105025428A (en) * | 2014-04-30 | 2015-11-04 | 福建省辉锐材料科技有限公司 | Loudspeaker diaphragm preparation method |
| CN106060721A (en) * | 2016-08-02 | 2016-10-26 | 常州阿木奇声学科技有限公司 | Diaphragm and coating method thereof |
-
2017
- 2017-08-15 CN CN201710698518.0A patent/CN107454544A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4269416A (en) * | 1978-08-04 | 1981-05-26 | Pioneer Electronic Corporation | Head shell for record player tonearms |
| CN103929709A (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 |
| CN105025428A (en) * | 2014-04-30 | 2015-11-04 | 福建省辉锐材料科技有限公司 | Loudspeaker diaphragm preparation method |
| CN106060721A (en) * | 2016-08-02 | 2016-10-26 | 常州阿木奇声学科技有限公司 | Diaphragm and coating method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024067A (en) * | 2018-09-18 | 2018-12-18 | 深圳市烽火宏声科技有限公司 | Graphene diffuser and its manufacturing method, loudspeaker |
| CN109467930A (en) * | 2018-11-28 | 2019-03-15 | 惠州市威隆展业实业有限公司 | A kind of earphone diaphragm material and preparation method thereof |
| US10841709B2 (en) | 2018-12-06 | 2020-11-17 | Waves Audio Ltd. | Nanocomposite graphene polymer membrane assembly, and manufacturing method thereof |
| WO2022160693A1 (en) * | 2021-01-29 | 2022-08-04 | 歌尔股份有限公司 | Diaphragm and sound producing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107454544A (en) | A kind of diaphragm of loudspeaker preparation method based on graphene and PEI | |
| CN101851716B (en) | Magnesium base composite material and preparation method thereof, and application thereof in sounding device | |
| JP2005236497A (en) | Loudspeaker diaphragm, loudspeaker employing the same, and electronic equipment employing the loudspeaker | |
| US8873793B2 (en) | Loudspeaker resin molding component and loudspeaker using the same and electronic device and mobile apparatus using the loudspeaker | |
| JP5034970B2 (en) | Speaker diaphragm, speaker using the same, and electronic device and apparatus using the speaker | |
| WO2015015742A1 (en) | Diaphragm for loudspeaker, loudspeaker, electronic apparatus, and mobile apparatus | |
| CN107277711A (en) | A kind of sound cavity apparatus and mobile terminal | |
| CN105025428A (en) | Loudspeaker diaphragm preparation method | |
| CN101851717B (en) | Shell and sound producing device applying same | |
| CN103929710A (en) | Preparation method of composite vibrating diaphragm | |
| CN109054059B (en) | Preparation method of vibrating diaphragm and vibrating diaphragm | |
| CN102326415A (en) | Speaker diaphragm, speaker, and speaker diaphragm manufacturing method | |
| CN115623395B (en) | Speaker and electronic equipment | |
| JP5023853B2 (en) | Speaker diaphragm, speaker using the same, and electronic device and apparatus using the speaker | |
| CN103929709A (en) | Preparation method of composite vibrating diaphragm | |
| CN103533496B (en) | Method for preparing earphone diaphragm material | |
| JPH1175290A (en) | Speaker diaphragm and its manufacture | |
| CN106851518A (en) | Vibrating diaphragm preparation method | |
| CN109391880A (en) | Loudspeaker acoustic diaphragm and preparation method based on graphene REINFORCED PET plastics | |
| JPS61114696A (en) | Diaphragm for loudspeaker | |
| CN107979797A (en) | A kind of receiver vibrating film of high sensitive | |
| CN201639757U (en) | Cone set | |
| JPH02274098A (en) | Manufacture of speaker diaphragm and voice coil bobbin | |
| JP4089091B2 (en) | Speaker diaphragm | |
| CN1859814A (en) | Yoke for speaker using synthetic resin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171208 |
|
| RJ01 | Rejection of invention patent application after publication |