CN101631266A - Speaker cones material and preparation method thereof - Google Patents
Speaker cones material and preparation method thereof Download PDFInfo
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- CN101631266A CN101631266A CN 200910041521 CN200910041521A CN101631266A CN 101631266 A CN101631266 A CN 101631266A CN 200910041521 CN200910041521 CN 200910041521 CN 200910041521 A CN200910041521 A CN 200910041521A CN 101631266 A CN101631266 A CN 101631266A
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- cones
- foam microspheres
- speaker cones
- resin base
- speaker
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Abstract
The invention relates to the speaker cones technical field, in particular to speaker cones material and a preparation method thereof; the speaker cones material comprises the following components by weight percent: 2%-20% of foaming microspheres, 77%-97.5% of resin basic material and 0.5-3% of diffuse oil; the preparation method is simple and comprises the following steps: first adding foaming microspheres in molten resin basic material according to the proportion of components; injecting the resin basic material with foaming microspheres in a molding cavity, controlling the molding temperature in the molding cavity to 90-135 DEG C; after molding, and finally increasing the temperature in the molding cavity to 136-205 DEG C to promote the foaming microspheres contained in the molded cones material to swell and form a desired cones shape. The cones material is characterized by light weight and good strength and the cones prepared from the material have better medium and high frequency response and better tonal quality.
Description
Technical field
The present invention relates to a kind of speaker cones technical field, be specifically related to a kind of cones material and preparation method thereof.
Background technology
Speaker cones is mainly used in the sound that promotes air and send different frequencies, and the improvement of existing speaker cones is mostly at material therefor and change in shape and obtain better effect.
The Material Used of traditional speaker cones and production technology mainly contain following several: fibers such as 1 paper pulp drag for the slurry moulding; 2, the light metal paper tinsel moulding of extending; 3, fibrous braid impregnation moulding; 4, honeycomb section bar molding bonded etc.Though above-mentioned 1,2,3 kind of material satisfies in light weight, highly sensitive requirement, because of good rigidly causes quality distortion, during wherein the basin that shakes of papery also is mainly used in the output of bass signal.Though the 4th kind of Material Used can improve rigidity, is difficult to satisfy the requirement of different tonequality, and the cost height, complex process is difficult to apply.The basin material of shaking weight is big, and then its desired power when promoting message output is often bigger.Therefore, the basin that shakes of light weight, good rigidly is that market is required.
China's ZL03126410 patent " the vibrating diaphragm base material member and the manufacture methods thereof of improved loudspeaker " discloses used material of a kind of diaphragm of loudspeaker and manufacture method thereof, this patent adopts metal film or compound film plating to be attached on the vibrating diaphragm base materials such as plastics, cloth, make this kind loud speaker obtain major improvement to the resonance effect of message, but its complex structure, practicality are not strong.
Summary of the invention
The technology that the present invention will solve ask provide a kind of light weight, rigidity height, tonequality is good and have corresponding cones material of better medium-high frequency and preparation method thereof.
For solving the problems of the technologies described above, comprise foam microspheres in the speaker cones material of the present invention, according to percentage by weight, this speaker cones material component is:
Foam microspheres: 2%～20%,
Resin base material 77%～97.5%, resin base material is selected a kind of in the following plastic material at least, comprises that ABS acrylonitrile-butadiene-styrene copolymer, PP polypropylene, PET PETG, PEN PEN, PU polyurethanes are called for short polyurethane, PS polystyrene, PE polyethylene, EVA ethylene-vinyl acetate copolymer, HDPE high density polyethylene (HDPE), LDPE low density polyethylene (LDPE);
Diffusion oil 0.5～3%.
The method for preparing above-mentioned speaker cones material is:
1) mixes than foam microspheres is added in the resin base material of fusion according to set of dispense;
2) will contain in the resin base material mixture injection moulding die cavity of foam microspheres, the temperature in shaping mold cavity during moulding is controlled between 90～135 degree;
3) after the moulding, the temperature in the shaping mold cavity is increased between 136～205 degree, impels the foam microspheres expanded by heating in the cones material after the moulding, form the needed basin shape of shaking.
Wherein foam microspheres is to coat the air-locked polymeric shells of one deck outside a hydrocarbon, and the particle size under its normal temperature is 28-38 μ m.The present invention has following remarkable result compared to existing technology:
Speaker cones material provided by the invention, it forms the basin profile of shaking that needs after adding foam microspheres in the plastic basis material and foam microspheres is expanded.Characteristics in light weight, that intensity is good that this cones material has.But also making the basin that shakes have better medium-high frequency response, tonequality is better.
In addition, the processing technology of speaker cones material of the present invention is simple, and it utilizes existing mould for plastics, and the blowing temperature of foam microspheres controlled well can be realized.
Description of drawings
Accompanying drawing 1 speaker cones of the present invention is applied on the loud speaker to be applied to performance test curve chart on the loud speaker with the existing basin that shakes.
Embodiment
For the ease of those skilled in the art's understanding, the present invention is further described in detail below in conjunction with specific embodiment:
Purport of the present invention is a kind of resin base material that contains foam microspheres of protection basin that shakes, and the selection of the ratio of the relative resin base material of foam microspheres and the particle size of foam microspheres is not subjected to the restriction of following embodiment.Making speaker cones in the foam microspheres adding resin material is protection main points of the present invention.
The solvent of cones material of the present invention and ratio requirement are
Foam microspheres: 2%～20%, foam microspheres is used as blowing agent.Foam microspheres is to coat the air-locked polymeric shells of one deck outside a hydrocarbon, and foam microspheres is powdered substance.When heating, housing is subjected to thermal softening, and hydrocarbon makes microballoon expand along with being heated gasification.Diameter before microballoon expands is generally 10～40 μ m, and density is 1000 ~ 1800kg/m3.The back microsphere diameter that expands can increase to 40-50 μ m, and density is reduced to 30-40kg/m3.Particle size was the microballoon of 28-38 μ m before foam microspheres in the present embodiment can be selected to expand, and it can be contained Science and Technology Ltd. and buy from the Jinchang, Guangzhou.
Resin base material 77%～97.5% can be common plastics, preferably high-density plastic and modified plastics etc.Resin base material can be selected a kind of in the following plastic material, comprises that ABS acrylonitrile-butadiene-styrene copolymer, PP polypropylene, PET PETG, PEN PEN, PU polyurethanes are called for short polyurethane, PS polystyrene, PE polyethylene, EVA ethylene-vinyl acetate copolymer, HDPE high density polyethylene (HDPE), LDPE low density polyethylene (LDPE); It also can be two or more combination of above-mentioned plastics.
Diffusion oil 0.5～3%.
According to the degree of drying of actual cones material material and the characteristic of selection, add a certain amount of diffusion oil.The diffusion oil that the present invention adopts can be bought from Shenzhen China source chemical industry Co., Ltd.Spread oily a kind of dispersed oil, it can rise and add lustre to and lubrication, uses diffusion oil can put forward the dispersiveness of resin base material, makes painted more evenly, and color and luster is more bright-coloured, and bath surface viscosity in the time of can also reducing moulding simultaneously reduces moment of torsion, the extrusion pressure of extruder.
Main Ingredients and Appearance foam microspheres in the cones material of the present invention is Powdered, and resin base material is a graininess, then adds diffusion oil for the two is evenly mixed.Add diffusion oil foam microspheres is wrapped in the outer surface of resin base material uniformly, make entire product to foam uniformly.
The method for preparing above-mentioned speaker cones material is:
1) fully mixes than 3 parts foam microspheres being added in 93 parts the resin base material of fusion according to set of dispense;
2) will contain and form the basin blank of shaking in the resin base material mixture injection moulding die cavity of foam microspheres, temperature is controlled between 90～135 degree in this forming process; The injection mo(u)lding needs that satisfy resin base material get final product, and avoid foam microspheres at the formative stage expanded by heating;
3) in shaping mold cavity, form the basin blank of shaking after, the temperature in the shaping mold cavity is increased between 136～205 degree, impel the foam microspheres expanded by heating in the cones material after the moulding, form the basin shape of shaking that finally needs.
Select for use in the present embodiment
Accompanying drawing 1 is applied on the loud speaker to be applied to performance test curve chart on the loud speaker with the existing basin that shakes for the present embodiment basin that shakes.Thick line is the test curve of present embodiment among the figure, and fine rule is the existing basin test curve that shakes among the figure.Can find out from figure, adopt the speaker cones that contains foam microspheres, its loud speaker low frequency (200～500HZ) sections sound press height, intermediate frequency (500～7KHZ) more smooth, at high frequency (7K～20KHZ) brighter.
Following table is summed up for audio of the present invention:
After the speaker cones that present embodiment is made is installed on the loud speaker, compare with the vibrating body of the other materials of identical weight, identical bore, the acoustic sensitivity height, tone color is better, undistorted phenomenon, the sound stereovision is stronger.
More than be the preferable implementation of the present invention, in addition, the present invention can also other implementations, need to prove, in any conspicuous replacement under the prerequisite that does not break away from inventive concept of the present invention all within protection range of the present invention.
Claims (4)
1, a kind of speaker cones material is characterized in that, comprises foam microspheres in this material.
2, speaker cones material according to claim 1 is characterized in that: according to percentage by weight, this speaker cones material component is:
Foam microspheres 2%～20%,
Resin base material 77%～97.5%, resin base material is selected a kind of in the following plastic material at least, comprises that ABS acrylonitrile-butadiene-styrene copolymer, PP polypropylene, PET PETG, PEN PEN, PU polyurethanes are called for short polyurethane, PS polystyrene, PE polyethylene, EVA ethylene-vinyl acetate copolymer, HDPE high density polyethylene (HDPE), LDPE low density polyethylene (LDPE);
Diffusion oil 0.5～3%.
3, a kind of method for preparing claim 1 or 2 described speaker cones materials may further comprise the steps:
1) mixes than foam microspheres is added in the resin base material of fusion according to set of dispense;
2) will contain in the resin base material mixture injection moulding die cavity of foam microspheres, the temperature in shaping mold cavity during moulding is controlled between 90～135 degree;
3) after the moulding, the temperature in the shaping mold cavity is increased between 136～205 degree, impels the foam microspheres expanded by heating in the cones material after the moulding, form the needed basin shape of shaking.
4, the method for preparing speaker cones material according to claim 3 is characterized in that: described foam microspheres is to coat the air-locked polymeric shells of one deck outside a hydrocarbon, and the particle size under its normal temperature is 28-38 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910041521 CN101631266B (en) | 2009-07-28 | 2009-07-28 | Speaker cones material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910041521 CN101631266B (en) | 2009-07-28 | 2009-07-28 | Speaker cones material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101631266A true CN101631266A (en) | 2010-01-20 |
| CN101631266B CN101631266B (en) | 2013-04-24 |
Family
ID=41576169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910041521 Expired - Fee Related CN101631266B (en) | 2009-07-28 | 2009-07-28 | Speaker cones material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101631266B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102523543A (en) * | 2011-11-29 | 2012-06-27 | 宁波东源音响器材有限公司 | Application of novel resin material for making sound box driver diaphragm |
| CN103214781A (en) * | 2013-04-26 | 2013-07-24 | 中塑联新材料科技湖北有限公司 | Special density regulator for acrylonitrile-butadiene-styrene copolymer |
| CN103232645A (en) * | 2013-04-26 | 2013-08-07 | 中塑联新材料科技湖北有限公司 | Polystyrene density regulator |
| CN103589070A (en) * | 2013-11-27 | 2014-02-19 | 天津市普立泰高分子科技有限公司 | Physical-foaming polypropylene cable material and preparation method thereof |
| 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 |
| CN105163244A (en) * | 2015-09-12 | 2015-12-16 | 东莞市和乐电子有限公司 | Diaphragm of loudspeaker of Bluetooth headset and production process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003023693A (en) * | 1999-10-04 | 2003-01-24 | Matsushita Electric Ind Co Ltd | Speaker |
| CN2641966Y (en) * | 2003-02-24 | 2004-09-15 | 韩华 | Loudspeakers |
| JP2005347907A (en) * | 2004-06-01 | 2005-12-15 | Pioneer Electronic Corp | Speaker vibration cone |
-
2009
- 2009-07-28 CN CN 200910041521 patent/CN101631266B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102344640B (en) * | 2011-07-07 | 2013-11-13 | 马春彪 | Loudspeaker diaphragm made from ABS (acrylonitrile-butadiene-styrene) copolymer nanocomposite |
| CN102333269B (en) * | 2011-07-07 | 2014-08-06 | 马春彪 | Loudspeaker diaphragm made of low density polyethylene nano-composite |
| CN102523543A (en) * | 2011-11-29 | 2012-06-27 | 宁波东源音响器材有限公司 | Application of novel resin material for making sound box driver diaphragm |
| CN102523543B (en) * | 2011-11-29 | 2015-01-21 | 宁波东源音响器材有限公司 | Application of novel resin material for making sound box driver diaphragm |
| CN103214781A (en) * | 2013-04-26 | 2013-07-24 | 中塑联新材料科技湖北有限公司 | Special density regulator for acrylonitrile-butadiene-styrene copolymer |
| CN103232645A (en) * | 2013-04-26 | 2013-08-07 | 中塑联新材料科技湖北有限公司 | Polystyrene density regulator |
| CN103589070A (en) * | 2013-11-27 | 2014-02-19 | 天津市普立泰高分子科技有限公司 | Physical-foaming polypropylene cable material and preparation method thereof |
| CN103589070B (en) * | 2013-11-27 | 2016-01-20 | 天津市普立泰高分子科技有限公司 | Physical blowing polypropylene cable material and preparation method thereof |
| 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 |
| CN105163244A (en) * | 2015-09-12 | 2015-12-16 | 东莞市和乐电子有限公司 | Diaphragm of loudspeaker of Bluetooth headset and production process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101631266B (en) | 2013-04-24 |
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