CN1201357A - Application of high polymer composite material in high-fidelity voice box - Google Patents
Application of high polymer composite material in high-fidelity voice box Download PDFInfo
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- CN1201357A CN1201357A CN 98113435 CN98113435A CN1201357A CN 1201357 A CN1201357 A CN 1201357A CN 98113435 CN98113435 CN 98113435 CN 98113435 A CN98113435 A CN 98113435A CN 1201357 A CN1201357 A CN 1201357A
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- audio amplifier
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Abstract
The present invention discloses use of a polymer composite material as board material for making high-fidelity voice box, which is a kind of sandwich material with high-strength surface layer and low-foamed fine microporous interlayer, its surface can be processed in various colours and also can be printed in various, and possesses good strength and internal damped attenuation property, so that the voice box made up by using said invented material possesses high fidely and has no noise.
Description
The invention discloses the application of high molecular polymerization composite material in the Hi-Fi sound-box, it belongs to the electronic audio technical field, also belongs to technical field of polymer chemistry.
Along with improving constantly of living standards of the people, VCD, LD and home theater are more and more accepted by numerous people and are adopted.Be the design Hi-Fi sound-box, except selecting preferably loudspeaker unit for use, on the structure of casing, conduct a research all like labyrinth types, closed, empty carton formula, road general formula, special-shaped moulding formula etc. mostly.Now, the speaker design manufacturing has reached higher level, because traditional wooden casing (containing density board) can not satisfy the fidelity requirement of modern high-quality audio amplifier, therefore, also there is the people on the casing manufacturing materials, to improve, for example adopts glass, pottery, mix [" radio and TV " 3 phases in 1994,7 phases of nineteen ninety-five, 8 phases of nineteen ninety-five such as earth, stone material; " sound technique " 1996 5 phases], but above material all exists its common deficiency or defective: and the internal damping characteristic of material is bad; The casing heaviness; Be difficult for making exquisite attractive in appearance; Being not easy to the Amateur Music fan makes.In addition, some combination audio adopts plastics to do voice box casing, because wall is thin, solid inadequately, can produce unpleasant to hear boxboard sound in use, makes quality distortion.
As everybody knows, sound box except structurally being fit to the requirement of high-fidelity tonequality, also will satisfy the requirement of high-fidelity tonequality as the bearing body of loud speaker on performance.Audio amplifier will bear very big acoustic pressure when work, it is improper that material is selected, easily cause mechanical oscillation, excited by a certain frequency and produce resonance, cause the energy of certain frequency to consume in the vibration damping of tank material in a large number, cause the sound muddiness, the towing of sound tail is long, produce very dark audio frequency valley in the frequency response, thus the tonequality of having a strong impact on.Generally, the way that prevents is except that adopting thicker material, also can adopt the good material of internal damping attenuation characteristic, sandwich material for example, according to the interrelated data introduction, the outer intensity of object is higher, internal layer is not real core but the material of minim gap is arranged, when being subjected to vibrating, can promptly be converted into heat energy to mechanical energy and discharge, make the vibration can sustained delivery, keep away the usefulness of bestirring oneself and rise.
So far, do not see to have the good material of this internal damping attenuation characteristic is used for speaker production.
The objective of the invention is: for adapting to the demand of case high-fidelity tonequality, be deficiency above-mentioned in the broadcast that overcomes present commercially available audio amplifier, avoid sound muddiness, sound tail to pull long, make the tonequality high-fidelity of broadcast, good material is used to make voice box casing and intend adopting a class to have the internal damping characteristic, to reach the effect of tonequality high-fidelity.And its method should be easy when speaker production, and its price is wanted rationally.
For realizing that the technical measures that purpose of the present invention adopts are:
The present invention adopts a class skinning foaming polymer polymer composite material to make Hi-Fi sound-box.Its raw material are PVC (polyvinyl chloride), PU (polyurethane), PS (polystyrene), ABS (polyacrylonitrile-butadiene-styrene), PF (phenolic resins), PMMA (polymethyl methacrylate).They also adopt wherein one or more raw material to make sheet material except that the common performance with macromolecule polymeric material, make sheet material and adopt " plug an outpost of the tax office " method to process, and the proportion of the sheet material of making is 0.6～1.3, and plate thickness is 3～50 millimeters.By the sheet material that " plug an outpost of the tax office " method is made, be a kind of sandwich plate with higher-strength top layer and low foaming fine holes intermediate layer.The sandwich plate of this macromolecule polymeric material, can also be processed into the sheet material of various colors, and become various textured patterns, but also can carry out the technical dissimilar sheet material of manufacturing according to the performance and the instructions for use of various loud speakers at surface printing.
The loudspeaker box structure of making can be common two divided-frequency bookshelf-type or other particular configuration.The audio amplifier framework is a rectangle, and the audio amplifier front face surface can be the plane, also can be convex surface.The enclosure size scope is: wide 95～600mm, high 180～1500mm, dark 120～460mm.
Compared with the prior art, the technique effect that reached of the present invention:
Adopt the skinning foaming polymer polymer composite material to make audio amplifier, have the sandwich material in the top layer and the low foaming fine holes intermediate layer of higher-strength, can follow closely during the processing and fabricating audio amplifier, can saw, can weld, can be bonding; Can moistureproofly, anti-damage by worms; Can be fire-retardant, indeformable; Also can process the sheet material of various colors and become various textured patterns at surface printing.More outstanding feature is, this material has good intensity and internal damping attenuation characteristic, special suitable for making Hi-Fi sound-box, reduced resonance frequency, clear-cut to LF-response, cut off and do not have the unhappy skirr that makes us that general audio amplifier is sent when low frequency, eliminated noise.Though audio amplifier equally also produces vibration when playback, does not influence tonequality.In addition, this audio amplifier also has certain demagnetizing effect.When music appreciating, subjective sense of hearing exquisiteness is soft, and middle pitch is deep mellow and full, and string music and voice are had reproduction true to nature, and the knock of big drum is stirring in the music, and is crisp, has no messy sensation; Small size high pitch, limpid melodious, be the material that a class has the Hi-Fi sound-box of extensive prospect.
Below in conjunction with embodiment the present invention is further described.
Embodiment: common two divided-frequency bookshelf-type AV audio amplifier.
With the thick 20mm of being of sheet material, proportion is that 0.8 high molecular polymerization composite material is made audio amplifier.Enclosure size is 265 * 490 * 330mm
3The audio amplifier front is a planar shaped, apart from the center line position installing high pitch loudspeaker of top margin 83mm; A woofer is installed at center line position at distance top margin 273mm; At the place, the lower right corner in audio amplifier front, apart from the positive base of audio amplifier and each 63mm place installing frequency divider of right side bearing.Bass unit adopts favour prestige S8+; Voice unit adopts favour prestige C1+; Frequency divider is a favour prestige DN-A3 two-divider.
During assembling, each junction of boxboard is 20 * 20mm with cross section
2The hardwood bar on tapping screw connect, coat the glass cement sealing then, connect frequency divider connecting line in the case, interior deposited acoustical cotton refills and connects loud speaker and phase-reversing tube.
Claims (1)
1. the application of high molecular polymerization composite material in the Hi-Fi sound-box, comprising with one or more high molecular polymerization panel materials uses " plug an outpost of the tax office " method to make high strength top layer and the middle sandwich material of low foaming fine holes, it is characterized in that: the proportion of sheet material is 〉=0.6 to 1.3, plate thickness is 〉=3 to 50 millimeters, become various textured patterns at surface printing, audio amplifier with this board making two divided-frequency bookshelf-type or other configuration, the enclosure size scope is that wide 〉=95 are to 600 millimeters, high 〉=180 to 1500 millimeters, dark 〉=120 to 460 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981134351A CN1162038C (en) | 1998-02-19 | 1998-02-19 | Application of high polymer composite material in high-fidelity voice box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981134351A CN1162038C (en) | 1998-02-19 | 1998-02-19 | Application of high polymer composite material in high-fidelity voice box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1201357A true CN1201357A (en) | 1998-12-09 |
| CN1162038C CN1162038C (en) | 2004-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981134351A Expired - Fee Related CN1162038C (en) | 1998-02-19 | 1998-02-19 | Application of high polymer composite material in high-fidelity voice box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162038C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548667A (en) * | 2017-01-20 | 2017-03-29 | 马鞍山状元郎电子科技有限公司 | A kind of intelligent interactive electronic white plate |
-
1998
- 1998-02-19 CN CNB981134351A patent/CN1162038C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548667A (en) * | 2017-01-20 | 2017-03-29 | 马鞍山状元郎电子科技有限公司 | A kind of intelligent interactive electronic white plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1162038C (en) | 2004-08-11 |
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