CN203896493U - Hi-fi audio device for automobiles - Google Patents
Hi-fi audio device for automobiles Download PDFInfo
- Publication number
- CN203896493U CN203896493U CN201420232030.0U CN201420232030U CN203896493U CN 203896493 U CN203896493 U CN 203896493U CN 201420232030 U CN201420232030 U CN 201420232030U CN 203896493 U CN203896493 U CN 203896493U
- Authority
- CN
- China
- Prior art keywords
- layer
- cotton layer
- acoustical cotton
- full range
- expanded ptfe
- 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.)
- Expired - Lifetime
Links
- 229920000742 Cotton Polymers 0.000 claims abstract description 33
- 239000012982 microporous membrane Substances 0.000 claims abstract description 13
- 239000003063 flame retardant Substances 0.000 claims abstract description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 25
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 25
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000013016 damping Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 5
- 229920000642 polymer Polymers 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 abstract 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract 2
- 230000002269 spontaneous effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 40
- 239000000463 material Substances 0.000 description 12
- 238000001125 extrusion Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 239000000206 moulding compound Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The utility model discloses a hi-fi audio device for automobiles. The hi-fi audio device comprises a box body; a full-frequency sound-absorbing cotton layer is adhered to the surface of the inner side of the box body and comprises an inner layer and an outer layer; the outer layer wraps the inner layer, the inner layer is an flame retardant sound-absorbing cotton layer which is formed by hot melting high polymers by high-speed hot air, drafting and stretching the molten high polymers into superfine fibers and then cooling and solidifying the superfine fibers to form a fibermesh thin layer; and the outer layer is an expanded polytetrafluoroethylene microporous membrane or an expanded polytetrafluoroethylene modified membrane which is formed by modifying and treating an expanded polytetrafluoroethylene membrane. Through the above technical scheme, the full-frequency sound-absorbing performance of the hi-fi audio device is strong, the full-frequency sound-absorbing effect is very notable, the damping capacity of vibration attenuation is raised, automobile noises can be absorbed to a large extend, and the device has the advantages of being flame retardant, light and capable of preventing spontaneous combustion.
Description
Technical field
The utility model relates to automobile audio field, particularly relates to a kind of automobile high-fidelity music center.
Background technology
Vehicle price continuous decrease, some producers have to car to carry out some change under the pressure of cost pressure, use low-grade parts in some links, investigation finds really to exist the phenomenon of cost squeeze on auto loud hailer, and a lot of economy cars have all used cheap auto loud hailer for cost-saving.In the time that automobile is advanced middle broadcasting music, various noises occur simultaneously together, form a complicated acoustics, have constriction in sense of hearing, and the mood that impact is driven, is unfavorable for traffic safety.Therefore many automobile friends just oneself reequip sound system, generally under seat or standby luggage case install sound equipment additional, this type of sound equipment, for preventing noise noise jamming, often adopts heavy high density plate material to make casing, the general sound-absorbing material of filling in casing, as mineral wool, mineral wool, sponge, cotton-wool, cotton paper etc. absorb noise, during due to the speaker operation of sound equipment, coil and magnet steel heating be serious, and temperature is high, under the impact of acoustic pressure, there is cracking in the seam crossing of high density plate material, greatly reduces tonequality; There is safe disaster hidden-trouble in this type of repacking, has also increased car weight, consumed effective power, easily causes the generation of self-burning of vehicle.
Therefore to adopt the measure of lightweight full range absorbing sound and lowering noise to improve the acoustics of low and middle-end economy car just necessary for sound equipment.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of automobile high-fidelity music center, can have the light-weighted effect of full range absorbing sound and lowering noise, makes acoustics exceed high density plate material class casing, and has got rid of disaster hidden-trouble, has guaranteed traffic safety.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of automobile high-fidelity music center is provided, comprise: casing, be bonded with full range acoustical cotton layer on box inside surface by pressure sensitive adhesive belt, described full range acoustical cotton layer comprises nexine: fire-retardant acoustical cotton layer and skin: the microporous membrane of expanded PTFE or expanded PTFE modified film layer, the microporous membrane of described expanded PTFE or expanded PTFE modified film layer are coated by fire-retardant acoustical cotton layer by adhesive.
In preferred embodiment of the utility model, described casing is acrylic casing, casing wall thickness 3-9mm.
In preferred embodiment of the utility model, the outer layer thickness of described full range acoustical cotton layer is 0.1-0.14mm.
In preferred embodiment of the utility model, described full range acoustical cotton layer and loud speaker spacing 5-15mm.
The beneficial effects of the utility model are: the utility model automobile is strong with the full range sound absorbing power of high-fidelity music center, and full range sound-absorbing effect is fairly obvious, and especially centering low frequency noise absorbs better, can improve the damping capacity of vibration damping.Can significantly absorb car noise, enable voice is melodized, has the advantages such as the anti-spontaneous combustion generation of anti-flammability, lightweight concurrently simultaneously.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the structural representation of the utility model automobile high-fidelity music center one preferred embodiment;
Fig. 2 be shown in the automobile right view of high-fidelity music center of Fig. 1;
In accompanying drawing, the mark of each parts is as follows: 1, casing, 2, pressure sensitive adhesive belt, 3, full range acoustical cotton layer, 4, skin, 5, nexine.
Embodiment
To the technical scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, the utility model embodiment comprises:
A kind of automobile high-fidelity music center, comprising: the cuboid casing 1 of acrylic injection molded, and casing 1 wall thickness 3-9mm, preferred casing 1 wall thickness of the utility model is 5mm.
Select acrylic board to be because its transparent and light transmittance as glass.There is the good transparency, chemical stability and weatherability, easy dyeing, easily processing, outward appearance grace, in building industry, article of furniture, has a wide range of applications in cleaners and polishes.Polymethyl methacrylate product can be divided into casting plate, extrusion board and moulding compound conventionally.
Be bonded with full range acoustical cotton layer 3 at casing 1 inner surface, this structure can improve the damping capacity of vibration damping.Described full range acoustical cotton layer 3 comprises nexine 5 and outer 4, described outer 4 coated described nexines 5.Skin 4 thickness of described full range acoustical cotton layer 3 are 0.1-0.14mm.The utility model preferably outer 4 thickness is 0.12mm.
Described full range acoustical cotton layer 3 and loud speaker spacing 5-15mm.The utility model preferred distance is 10mm.
Described nexine 5 is fire-retardant polypropylene acoustical cotton, is to utilize high velocity, hot air to carry out hot melt high polymer, and the temperature of hot melt is 310 DEG C ~ 374 DEG C.Again the polymer drawing-off of melting is elongated to superfine fibre, the length of described superfine fibre is 25 ~ 100mm, average diameter <18 μ m.Then superfine fibre cooling curing is formed to fleece thin layer, be fire-retardant acoustical cotton layer.
Described outer 4 be expanded PTFE microporous membrane or expanded PTFE modified film layers, described expanded PTFE modified film layer is that eptfe film modification is formed to expanded PTFE modified film layer;
Eptfe film is that polytetrafluoroethyldispersion dispersion resin is mixed in proportion with liquid extrusion aid, give and be pressed into cylinder blank, by rolling process, cylinder blank is laminated, through sloughing extrusion aid, stretching, thermal finalization, finally make expanded PTFE microporous membrane.
Eptfe film is a kind of macromolecule new material film with specific function high added value, make through biaxial tension through special process, the microfibre of this film has formed the inside and outside micropore in 0.1 penetrating μ m aperture, μ m ~ 18, this hole is tiny and longitudinal substandard bend alignment extremely, also has the excellent ability of full range absorbing sound and lowering noise as outer 4 materials.
After fire-retardant polypropylene acoustical cotton layer and the microporous membrane of expanded PTFE or the hot briquetting of expanded PTFE modified film layer are compound, its architectural characteristic is: in material, have a large amount of, that interpenetrate, from showing micropore, also have certain gas permeability and noise reduction performance.The sound-absorbing principle of many micropores matter sound-absorbing material is vibrate air while passing in and out from slot, and air molecule and material and self friction, be transformed into heat energy acoustic energy, and noise energy has consumed in this new composite material.Much closeer Kong Yue is, full range noise reduction sound absorbing power is stronger, form a kind of specific function new material of high performance full range sound-absorbing, in the time that sound wave incides this many micropores new material surface, cause the air vibration in micropore, due to viscous resistance and the conduction of heat of frictional resistance and air, quite a few acoustic energy is converted into heat energy, sound equipment acoustic pressure has reduced by 5 ~ 7dB within the scope of full range, full range sound-absorbing effect is fairly obvious, especially to low, intermediate frequency noise absorption is better, be applied on the tone quality improving and protection of auto loud hailer, can in whole frequency range, absorb noise, give comfortable sound equipment of people environment of driving.
The manufacture craft of this sound equipment comprises the following steps:
1) make full range acoustical cotton layer 3;
2) on the bonding plane of full range acoustical cotton layer 3 and casing 1, paste pressure sensitive adhesive belt 2;
3) by pressure sensitive adhesive belt 2, full range acoustical cotton layer 3 is bonded on casing 1 inner surface, completes after the assay was approved making.
The manufacture craft of described full range acoustical cotton layer 3 comprises the following steps:
1) technological preparation, carries out blanking by the microporous membrane layer of expanded PTFE or expanded PTFE modified film layer and fire-retardant acoustical cotton layer;
2) the microporous membrane layer of expanded PTFE or expanded PTFE modified film layer are laid;
3) spraying polyurethane adhesive on the microporous membrane layer of expanded PTFE or expanded PTFE modified film layer;
4) place fire-retardant acoustical cotton layer on microporous membrane layer or the expanded PTFE modified film layer surface of the expanded PTFE that is coated with polyurethane adhesive;
5) the microporous membrane layer of expanded PTFE or expanded PTFE modified film layer are coated on outside fire-retardant acoustical cotton layer, then put into mould and carry out mold pressing, by gross thickness compression 1% ~ 2%;
6) after mold pressing completes, heat cementation in mould, temperature is 90 ~ 100 DEG C;
7) last, cooling curing is more than or equal to the making that completes full range acoustical cotton layer 3 after 24 hours.
Automobile is strong with the full range sound absorbing power of high-fidelity music center, and full range sound-absorbing effect is fairly obvious, and especially centering low frequency noise absorbs better, and full range acoustical cotton pressure-sensitive adhesive layer is bonded in the damping capacity that can improve vibration damping on casing 1 inwall.Can significantly absorb car noise, enable voice is melodized, has the advantages such as the anti-spontaneous combustion generation of anti-flammability, lightweight concurrently simultaneously.
1) automobile high-fidelity music center composite material, in the time that noise waves incides this many micropores new material surface, cause the air vibration in micropore, due to viscous resistance and the conduction of heat of frictional resistance and air, quite a few acoustic energy is converted into heat energy, noise waves is further decayed and is converted into after heat energy through the less micropore of eptfe membrane, sound equipment acoustic pressure has reduced by 5 ~ 7dB within the scope of full range, full range sound-absorbing effect is fairly obvious, especially centering low frequency noise absorbs better, be applied on high-fidelity audio equipment and loud speaker, can in whole frequency range, absorb noise, leave dulect music, give comfortable environment of driving of people.
2) environmental protection: the automobile of environmental protection high-fidelity music center material, white nontoxic free from extraneous odour, non-volatility gas, nuisanceless pollution, containing carcinogen;
3) anti-flammability: automobile has good thermal endurance with high-fidelity music center, can be used for a long time 125 DEG C of left and right.Automobile has good thermal endurance with high-fidelity music center, and fire protecting performance (anti-flammability) material meets automotive trim requirement completely.Improve life and property safety.
4) protection against the tide: automobile high-fidelity music center hydrophobicity, without mouldy, bacteria breed, rots and the generation of bad smell, guarantees long-time stability.Under wet environment, absorbing sound and lowering noise ability is constant.
5) high insulation: automobile has good insulation property with high-fidelity music center, because it absorbs water hardly, therefore insulation property are not subject to the impact of humidity.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. an automobile high-fidelity music center, it is characterized in that, comprise: casing, be bonded with full range acoustical cotton layer on box inside surface by pressure sensitive adhesive belt, described full range acoustical cotton layer comprises nexine: fire-retardant acoustical cotton layer and skin: the microporous membrane of expanded PTFE or expanded PTFE modified film layer, the microporous membrane of described expanded PTFE or expanded PTFE modified film layer are coated by fire-retardant acoustical cotton layer by adhesive.
2. automobile high-fidelity music center according to claim 1, is characterized in that, described casing is acrylic casing, casing wall thickness 3-9mm.
3. automobile high-fidelity music center according to claim 1, is characterized in that, the outer layer thickness of described full range acoustical cotton layer is 0.1-0.14mm.
4. automobile high-fidelity music center according to claim 1, is characterized in that, described full range acoustical cotton layer and loud speaker spacing 5-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420232030.0U CN203896493U (en) | 2014-05-08 | 2014-05-08 | Hi-fi audio device for automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420232030.0U CN203896493U (en) | 2014-05-08 | 2014-05-08 | Hi-fi audio device for automobiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203896493U true CN203896493U (en) | 2014-10-22 |
Family
ID=51722841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420232030.0U Expired - Lifetime CN203896493U (en) | 2014-05-08 | 2014-05-08 | Hi-fi audio device for automobiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203896493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11032634B2 (en) | 2017-11-16 | 2021-06-08 | Hewlett-Packard Development Company, L.P. | Earpieces |
-
2014
- 2014-05-08 CN CN201420232030.0U patent/CN203896493U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11032634B2 (en) | 2017-11-16 | 2021-06-08 | Hewlett-Packard Development Company, L.P. | Earpieces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190102 Address after: 213165 28-8 Liban Road, Bangshang Village, Lijia Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: PANASIAN MICROVENT TECH (JIANGSU) Corp. Address before: 213165 No. 28-8, Li ban Road, Lijia Town, Wujin District, Changzhou, Jiangsu. Patentee before: PAN-ASIAN AUTOMOTIVE GARNISHRY (CHANGZHOU) Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 213000 No.8 Qiancao Road, Lijia Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: PANASIAN MICROVENT TECH (JIANGSU) Corp. Address before: 213165, No. 28-8, Sakamoto Road, Sakamoto village, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee before: PANASIAN MICROVENT TECH (JIANGSU) Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |