CN105025428A - Loudspeaker diaphragm preparation method - Google Patents
Loudspeaker diaphragm preparation method Download PDFInfo
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- CN105025428A CN105025428A CN201410181008.2A CN201410181008A CN105025428A CN 105025428 A CN105025428 A CN 105025428A CN 201410181008 A CN201410181008 A CN 201410181008A CN 105025428 A CN105025428 A CN 105025428A
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- molecular polymer
- high molecular
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- loudspeaker
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Abstract
The invention discloses a loudspeaker diaphragm preparation method, comprising: employing a high-molecular polymer as a base material; doping the base material with graphene materials through an in situ polymerization method or a solution mixing method to form a grapheme high-molecular polymer mixed material film; and preparing a loudspeaker diaphragm through laser cutting or punching. In the method, the graphene materials are introduced into the high-molecular polymer for mixing to form the grapheme high-molecular polymer mixed material film so as to prepare the loudspeaker diaphragm; because of the mechanical property of the graphene materials, the loudspeaker diaphragm has the characteristics of stronger robustness, shock resistance, abrasion performance and light weight.
Description
Technical field
The present invention relates to the technical field that the diaphragm of loudspeaker manufactures, be related specifically to a kind of preparation method of the diaphragm of loudspeaker.
Background technology
Loud speaker is the electroacoustic transducer that can convert the electrical signal to acoustical signal and be radiated in air, and it is applied in electronic product widely, and loud speaker generally includes magnetic circuit system, vibrational system and support system.Speaker vibration system comprises vibrating diaphragm and is incorporated into the voice coil loudspeaker voice coil of vibrating diaphragm side, vibrating diaphragm is one of most important parts forming loud speaker, be mainly used for radiation sound, the material of vibrating diaphragm choose tonequality on loud speaker, tone, tone color have vital impact.
: 1. the density of diaphragm materials is as far as possible low ensure that loud speaker has higher sensitivity to the basic demand of loudspeaker diaphragm materials; 2. the ratio spring rate (E/p) of material is high as much as possible, (wherein E is the modulus of elasticity of material, p is density of material), in other words require that namely diaphragm materials is wanted gently to have higher physical strength again, vibrating diaphragm can be made like this in wider frequency range to do piston movement, effectively can suppress diaphagras, reduce the unevenness of frequency response, reduce distortion.3. require that diaphragm materials will have suitably large internal loss (namely damping factor wants large), frequency response curve can be made smoother, fall low reactance-resistance ratio and improve tonequality.In the prior art, diaphragm materials is of a great variety, comprise paper cone, metal vibration diaphragm material is (as titanium, almag etc.), macromolecule diaphragm materials is (as polypropylene, polyethylene, liquid crystal polymer etc.), inorganic non-metallic diaphragm materials is (as pottery, diamond, boron carbide etc.) etc., but the single-layer vibrating diaphragm intensity that above-mentioned material is made is lower, the need of work of loud speaker cannot be met, therefore vibrating diaphragm adopts the structure that multiple single-layer vibrating diaphragms of same material or different materials are formed by colloid secure bond usually, but the usual fastness of the vibrating diaphragm of this sandwich construction is poor, in conjunction with time easily occur that film is rolled over, the phenomenons such as foaming, affect the stability of vibrating diaphragm.
The vibrating diaphragm of this sandwich construction is many due to the number of plies, is difficult to ensure each layer vibrating diaphragm consistency of thickness in batch production, and then is difficult to the consistency ensureing other performance.
Along with more and more higher to the requirement of loud speaker, the performance requirement of prior art to vibrating diaphragm is also more and more higher, therefore needs to find the diaphragm materials that more can meet this loud performance requirement.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of the diaphragm of loudspeaker, have the advantages that strong robustness, shock resistance, resistance to wear and quality are light.
For achieving the above object, the present invention is by the following technical solutions:
A preparation method for the diaphragm of loudspeaker, forms Graphene high molecular polymer composite material film as base material by situ aggregation method or solution mixing method doped graphene material using high molecular polymer, makes the diaphragm of loudspeaker by laser cutting or stamping-out.
Wherein, described grapheme material is graphene nanometer sheet, graphene oxide or fluorinated graphene.
Wherein, described high molecular polymer is that PET, PEEK, PEI, PAR, PMMA are wherein arbitrary.
Wherein, in described Graphene high molecular polymer composite material film, grapheme material content is 10% ~ 40%, and the content of high molecular polymer is 60% ~ 90%.
Wherein said is that base material comprises as follows by its making step of situ aggregation method doped graphene material formation Graphene high molecular polymer composite material film by high molecular polymer:
By ultrasonic method, grapheme material is scattered in ethylene glycol, forms grapheme material/ethylene glycol mixed solution; In the raw material of synthesising macromolecule copolymer, add described grapheme material/ethylene glycol mixed solution, mechanical agitation forms slurries, passes through esterification, form the high molecular polymer slurries of admixed graphite alkene, cooling curing becomes Graphene high molecular polymer composite material film.
Wherein, described is that base material forms Graphene high molecular polymer composite material film by solution mixing method doped graphene material by high molecular polymer, and its making step comprises as follows:
By ultrasonic method, grapheme material is scattered in ethylene glycol, forms grapheme material/ethylene glycol mixed solution, by ultrasonic method, high molecular polymer is scattered in toluene solution, form high molecular polymer/toluene mixed serum; In high molecular polymer/toluene mixed serum, add grapheme material/ethylene glycol mixed solution, make grapheme material be scattered in high molecular polymer/toluene mixed serum completely, cooling curing becomes Graphene high molecular polymer composite material film.
The diaphragm of loudspeaker obtained according to above-mentioned either method, the described diaphragm of loudspeaker is one deck or multi-layer graphene high molecular polymer composite material film.
The present invention adopts above technical scheme, at high molecular polymer, to be base material form Graphene high molecular polymer composite material film by situ aggregation method or solution mixing method doped graphene material makes the diaphragm of loudspeaker, utilize the engineering properties of grapheme material, make the diaphragm of loudspeaker have the light feature of stronger robustness, shock resistance, resistance to wear and quality
Accompanying drawing explanation
Fig. 1 is the structural representation of the diaphragm of loudspeaker of the present invention.
Embodiment
In order to make object of the present invention, feature and advantage more clear, below in conjunction with drawings and Examples, explanation is specifically made to the specific embodiment of the present invention, in the following description, set forth a lot of concrete details so that understand the present invention fully, but the present invention can implement in other modes being much different from description.Therefore, the present invention is not by the restriction of the concrete enforcement of following discloses.
As shown in Figure 1, be the structural representation of the diaphragm of loudspeaker of the present invention, the described diaphragm of loudspeaker is Graphene high molecular polymer composite material film.
The preparation method of the described diaphragm of loudspeaker, be specially and high molecular polymer 11 is formed Graphene high molecular polymer composite material film 10 as base material by situ aggregation method or solution mixing method doped graphene material 12, make the diaphragm of loudspeaker by laser cutting or stamping-out.Wherein, the described diaphragm of loudspeaker can be one deck or multi-layer graphene high molecular polymer composite material film 10; Described high molecular polymer is that PET, PEEK, PEI, PAR, PMMA are wherein arbitrary; Described grapheme material is graphene nanometer sheet, graphene oxide or fluorinated graphene; In described Graphene high molecular polymer composite material film, grapheme material content is 10% ~ 40%, and the content of high molecular polymer is 60% ~ 90%.
Embodiment one:
A preparation method for the diaphragm of loudspeaker, describedly forms Graphene high molecular polymer composite material film 10 for base material by situ aggregation method doped graphene material 12 by high molecular polymer 11, and its making step comprises as follows:
S1, is scattered in ethylene glycol by ultrasonic method by grapheme material, forms grapheme material/ethylene glycol mixed solution.
S2, in the raw material of synthesising macromolecule copolymer, adds the grapheme material/ethylene glycol mixed solution in S1, mechanical agitation forms slurries, by esterification, form the high molecular polymer slurries of admixed graphite alkene, cooling curing becomes Graphene high molecular polymer composite material film.
Embodiment two:
A preparation method for the diaphragm of loudspeaker, describedly forms Graphene high molecular polymer composite material film 10 for base material by solution mixing method doped graphene material 12 by high molecular polymer 11, and its making step comprises as follows: its making step comprises as follows:
S1, is scattered in ethylene glycol by ultrasonic method by grapheme material, forms grapheme material/ethylene glycol mixed solution; By ultrasonic method, high molecular polymer is scattered in toluene solution, forms high molecular polymer/toluene mixed serum.
S2, when rapid stirring, in high molecular polymer/toluene mixed serum, add grapheme material/ethylene glycol mixed solution, make grapheme material be scattered in high molecular polymer/toluene mixed serum completely, cooling curing becomes Graphene high molecular polymer composite material film.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the preparation method of a diaphragm of loudspeaker, it is characterized in that: high molecular polymer is formed Graphene high molecular polymer composite material film as base material by situ aggregation method or solution mixing method doped graphene material, makes the diaphragm of loudspeaker by laser cutting or stamping-out.
2. the preparation method of a kind of diaphragm of loudspeaker according to claim 1, is characterized in that: described grapheme material is graphene nanometer sheet, graphene oxide or fluorinated graphene.
3. the preparation method of a kind of diaphragm of loudspeaker according to claim 1, is characterized in that: described high molecular polymer is that PET, PEEK, PEI, PAR, PMMA are wherein arbitrary.
4. the preparation method of a kind of diaphragm of loudspeaker according to claim 1, is characterized in that: in described Graphene high molecular polymer composite material film, grapheme material content is 10% ~ 40%, and the content of high molecular polymer is 60% ~ 90%.
5. the preparation method of a kind of diaphragm of loudspeaker according to claim 1, is characterized in that: described is that base material comprises as follows by its making step of situ aggregation method doped graphene material formation Graphene high molecular polymer composite material film by high molecular polymer:
By ultrasonic method, grapheme material is scattered in ethylene glycol, forms grapheme material/ethylene glycol mixed solution; In the raw material of synthesising macromolecule copolymer, add described grapheme material/ethylene glycol mixed solution, mechanical agitation forms slurries, passes through esterification, form the high molecular polymer slurries of admixed graphite alkene, cooling curing becomes Graphene high molecular polymer composite material film.
6. the preparation method of a kind of diaphragm of loudspeaker according to claim 1, it is characterized in that: described is that base material forms Graphene high molecular polymer composite material film by solution mixing method doped graphene material by high molecular polymer, and its making step comprises as follows:
By ultrasonic method, grapheme material is scattered in ethylene glycol, forms grapheme material/ethylene glycol mixed solution, by ultrasonic method, high molecular polymer is scattered in toluene solution, form high molecular polymer/toluene mixed serum; In high molecular polymer/toluene mixed serum, add grapheme material/ethylene glycol mixed solution, make grapheme material be scattered in high molecular polymer/toluene mixed serum completely, cooling curing becomes Graphene high molecular polymer composite material film.
7. the diaphragm of loudspeaker obtained according to the arbitrary described method of claim 1-6, is characterized in that: the described diaphragm of loudspeaker is one deck or multi-layer graphene high molecular polymer composite material film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181008.2A CN105025428A (en) | 2014-04-30 | 2014-04-30 | Loudspeaker diaphragm preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181008.2A CN105025428A (en) | 2014-04-30 | 2014-04-30 | Loudspeaker diaphragm preparation method |
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| CN105025428A true CN105025428A (en) | 2015-11-04 |
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| CN201410181008.2A Pending CN105025428A (en) | 2014-04-30 | 2014-04-30 | Loudspeaker diaphragm preparation method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107454544A (en) * | 2017-08-15 | 2017-12-08 | 深圳清华大学研究院 | A kind of diaphragm of loudspeaker preparation method based on graphene and PEI |
| CN107493557A (en) * | 2017-08-15 | 2017-12-19 | 深圳清华大学研究院 | A kind of diaphragm of loudspeaker preparation method based on graphene paper pulp |
| WO2018023842A1 (en) * | 2016-08-02 | 2018-02-08 | 常州阿木奇声学科技有限公司 | Vibration diaphragm and manufacturing method thereof, and electroacoustic transducer |
| CN108650611A (en) * | 2018-05-31 | 2018-10-12 | 歌尔股份有限公司 | Vibrating diaphragm preparation method, vibrating diaphragm and loud speaker |
| CN109257684A (en) * | 2018-10-12 | 2019-01-22 | 歌尔股份有限公司 | Vibrating diaphragm top dome, microphone device and electronic equipment |
| CN109391880A (en) * | 2017-08-10 | 2019-02-26 | 深圳清华大学研究院 | Loudspeaker acoustic diaphragm and preparation method based on graphene REINFORCED PET plastics |
| WO2019036900A1 (en) * | 2017-08-22 | 2019-02-28 | 周金进 | Method for coating membrane on surface of speaker diaphragm |
| CN112203209A (en) * | 2020-10-12 | 2021-01-08 | 宁波石墨烯创新中心有限公司 | Preparation method and device of electrostatic loudspeaker diaphragm |
| CN114806099A (en) * | 2021-01-28 | 2022-07-29 | 慧隆科技股份有限公司 | Manufacturing method of graphene master batch and graphene seismic film |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101288336A (en) * | 2005-10-14 | 2008-10-15 | Kh化学有限公司 | Acoustic diaphragm and speakers having the same |
| CN102307325A (en) * | 2011-07-21 | 2012-01-04 | 清华大学 | Thermophone device |
| CN103428622A (en) * | 2012-05-14 | 2013-12-04 | 韩国电子通信研究院 | Piezoelectric speaker having weight and method of producing the same |
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2014
- 2014-04-30 CN CN201410181008.2A patent/CN105025428A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101288336A (en) * | 2005-10-14 | 2008-10-15 | Kh化学有限公司 | Acoustic diaphragm and speakers having the same |
| CN102307325A (en) * | 2011-07-21 | 2012-01-04 | 清华大学 | Thermophone device |
| CN103428622A (en) * | 2012-05-14 | 2013-12-04 | 韩国电子通信研究院 | Piezoelectric speaker having weight and method of producing the same |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018023842A1 (en) * | 2016-08-02 | 2018-02-08 | 常州阿木奇声学科技有限公司 | Vibration diaphragm and manufacturing method thereof, and electroacoustic transducer |
| CN109391880A (en) * | 2017-08-10 | 2019-02-26 | 深圳清华大学研究院 | Loudspeaker acoustic diaphragm and preparation method based on graphene REINFORCED PET plastics |
| CN107454544A (en) * | 2017-08-15 | 2017-12-08 | 深圳清华大学研究院 | A kind of diaphragm of loudspeaker preparation method based on graphene and PEI |
| CN107493557A (en) * | 2017-08-15 | 2017-12-19 | 深圳清华大学研究院 | A kind of diaphragm of loudspeaker preparation method based on graphene paper pulp |
| WO2019036900A1 (en) * | 2017-08-22 | 2019-02-28 | 周金进 | Method for coating membrane on surface of speaker diaphragm |
| CN108650611A (en) * | 2018-05-31 | 2018-10-12 | 歌尔股份有限公司 | Vibrating diaphragm preparation method, vibrating diaphragm and loud speaker |
| CN109257684A (en) * | 2018-10-12 | 2019-01-22 | 歌尔股份有限公司 | Vibrating diaphragm top dome, microphone device and electronic equipment |
| CN109257684B (en) * | 2018-10-12 | 2021-03-30 | 歌尔股份有限公司 | Vibrating diaphragm ball top, sound production device and electronic equipment |
| CN112203209A (en) * | 2020-10-12 | 2021-01-08 | 宁波石墨烯创新中心有限公司 | Preparation method and device of electrostatic loudspeaker diaphragm |
| CN114806099A (en) * | 2021-01-28 | 2022-07-29 | 慧隆科技股份有限公司 | Manufacturing method of graphene master batch and graphene seismic film |
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Application publication date: 20151104 |
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