CN104704555A - 多层多孔吸声器 - Google Patents
多层多孔吸声器 Download PDFInfo
- Publication number
- CN104704555A CN104704555A CN201380048152.2A CN201380048152A CN104704555A CN 104704555 A CN104704555 A CN 104704555A CN 201380048152 A CN201380048152 A CN 201380048152A CN 104704555 A CN104704555 A CN 104704555A
- Authority
- CN
- China
- Prior art keywords
- absorber
- sound absorber
- plastic layer
- sheet material
- sound
- 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.)
- Granted
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 74
- 239000004033 plastic Substances 0.000 claims abstract description 30
- 229920003023 plastic Polymers 0.000 claims abstract description 30
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 239000006260 foam Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 39
- 239000000835 fiber Substances 0.000 claims description 24
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 12
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 7
- -1 polyethylene terephthalate Polymers 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 229920004934 Dacron® Polymers 0.000 claims description 3
- 239000004640 Melamine resin Substances 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 244000198134 Agave sisalana Species 0.000 claims description 2
- 244000025254 Cannabis sativa Species 0.000 claims description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 2
- 244000060011 Cocos nucifera Species 0.000 claims description 2
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- 229920002292 Nylon 6 Polymers 0.000 claims description 2
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 2
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 2
- 239000004695 Polyether sulfone Substances 0.000 claims description 2
- 239000004697 Polyetherimide Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 235000009120 camo Nutrition 0.000 claims description 2
- 235000005607 chanvre indien Nutrition 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000011487 hemp Substances 0.000 claims description 2
- 229920002492 poly(sulfone) Polymers 0.000 claims description 2
- 229920006393 polyether sulfone Polymers 0.000 claims description 2
- 229920002530 polyetherether ketone Polymers 0.000 claims description 2
- 229920001601 polyetherimide Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims 2
- 240000000797 Hibiscus cannabinus Species 0.000 claims 1
- 239000003822 epoxy resin Substances 0.000 claims 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims 1
- 229920000647 polyepoxide Polymers 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000001467 acupuncture Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 208000035859 Drug effect increased Diseases 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/06—Open cell foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/72—Density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Textile Engineering (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
本发明涉及一种具有微穿孔塑料膜(4)和是可热变形吸收器(3)的多层多孔吸声器(1),其是一泡沫层,织物或纤维无纺布层。本发明还涉及一种制造相应吸声器的方法。
Description
本发明涉及一种多层多孔吸声器,包括一微穿孔塑料片材和一热变形吸收器,其是一泡沫层,纤维织物,或纤维无纺布层。此外,本发明包括一种制造相应吸声器的方法。
覆盖在其一侧上,带有朝向声源的微穿孔片材的吸收器是已知的。穿孔的几何结构,穿孔与片材的开口表面区域之间的距离会影响吸收。在汽车领域中,这样的结构,尤其是用于发动机舱的带有穿孔金属箔和吸收器,是已知的。
DE 10 2004050649 A1描述了一种吸音防热罩。带有片状金属载体板的吸音防热罩,其具有有效的隔音隔热层,被公开了。防热罩包括带有微穿孔的保护片材,在使用时,其被设置在朝向声源的隔热层一侧。
一种用于机动车的发动机舱的隔热隔音的衬里,其在DE10143167 A1中有描述,包含一在发动机侧的微穿孔的热反射器,和一聚氨酯泡沫层,其用具有200℃,特别是150℃的三个星期的长期耐温性的热固性材料浸渍在发动机侧,和一远离发动机侧的覆盖层。
微穿孔片材,特别是金属箔的制造,早已是公知的。例如,可参考美国专利7838125 B2,其描述了微穿孔金属箔的一个具体实施方式。据描述,所述金属箔通过针刺法变形,以这样一种方式,当针穿刺通过时,在针刺相反方向形成一相对于底端边缘磨损片层的平均片材层水平升高的凹坑。
DE 10 2004053751 A1描述了一种用于车辆的衬里部件,特别是车身底部面板。它具有一多孔中间层和至少在每侧具有一覆盖层,多孔中间层具有透声或吸声功效的这种结构。该吸声多孔中间层可以与一个或多个透声或吸声覆盖层覆盖在其一个或两个侧面上。
具有吸收器和微穿孔聚合物片材的结构用于机动车辆内部区域是已知的。EP 1101218 B1描述了一种用于吸声器的微穿孔聚合物片材,其是用具有一限定厚度和一些微穿孔的聚合物片材形成的,其中,每个微穿孔具有比片材厚度更小的最窄直径,和比最窄直径大125%的宽直径。
因此,取决于板厚的带有限定穿孔几何结构的微穿孔塑料片材有描述过。特别是,带有可变直径的柱状或漏斗状类型的穿孔通道在这里描述过。
对于吸收器结构,穿孔的几何结构,穿孔的数量和其相互距离都认为是良好声学特性的先决条件,其受到所提到数量的影响。
在所有这些结构中,在处理过程中的两层片材的改变仍然未被考虑。根据该片材的针刺,导致减少穿孔直径的松弛过程发生在冷针刺的较高熔点片材中。另一方面,在片材变形过程中发生穿孔的增加。较低熔点片材层松弛,并与吸收器组件一起,导致覆盖层的流动阻力的进一步下降。
所有效果一起改变覆盖层的流动阻力,且只有这个值对实际效果是非常重要的。
因此,存在产生一组件(吸声器)的对象,其包括一热变形吸收器和一微穿孔片材,以这样一种方式,具有高吸收,且在宽频率范围内,尤其是在低频率具有局部增强隔热。
上述目的是通过一种多层多孔吸声器1来实现的,其包括一热变形吸收器3和一微穿孔片材4,表面对表面粘在一起,其特征在于
所述微穿孔片材4包含两层材料,其包括具有限定穿孔几何结构的较高熔点的第一塑料层,和与所述第一塑料层相比具有较低熔点的第二塑料层,其中,所述较低熔点的塑料层包括一中间层2,毗邻吸收器3,其包含吸收器组件和所述较低熔点的塑料,和
所述较高熔点的塑料层和所述中间层2的覆盖层与所述吸收器3的流动阻力之比从1:3至1:30,且吸声器1的整体流动阻力R是在从R = 800 Nsm-3至R = 8000 Nsm-3的范围内。
因此,本发明涉及,特别是,一种三层吸声器1,包括一微穿孔片材4(覆盖层)和一热变形吸收器3,其具有通过中间层2的形成来实现在两个吸收器之间耦合的结构。
如果片材4的具体的流动阻力过高,声音不能渗透到后方的吸收器3,并反映在广域。如果片材4的流动阻力太低(开放),只有吸收器3才具有基本的作用,且多孔片材吸收器4的影响小到可以忽略不计。
这两种吸收器的频率特性基本上不同。而多孔吸声器3具有宽范围的随频率而增加的吸收效果,因此主要用于中频和高频的吸收,微穿孔片材4优选在窄频范围内,中频或低频的共振区内的吸收。片材4上的流动阻力的散射导致吸收的可调增宽。
微穿孔片材4优选包含或含有具有处理温度以上的熔融温度(软化温度)的塑料材料,例如聚酰胺,聚对苯二甲酸乙二醇酯,聚醚酰亚胺,聚砜,聚醚砜,聚醚醚酮,和具有处理温度(背衬温度)以下的熔融温度(软化温度)的如聚乙烯或聚丙烯的第二塑料材料。这个较低熔点的塑料材料作为粘合剂,粘结到吸收器3的颗粒上,形成中间层2,并改变片材4的穿孔图案及其声学和流变性能。
较高和较低熔点的塑料材料的软化温度优选相差至少30K,尤其至少100K。
特别地,热变形吸收器3包含纤维织物,纤维无纺布层,或泡沫。后者可以具有一层或多层设计,且可以包含这些材料的组合。
例如,吸音层3和上述微穿孔片材4可以包括泡沫层,根据本发明更优选地,包含开孔聚氨酯,蜜胺树脂或轻泡沫的一种。
同样地,根据本发明的作为吸声器1组件的纤维织物或纤维无纺布层也可以包含合成纤维,如聚酯纤维,特别是聚对苯二甲酸乙二醇酯,聚酰胺纤维,特别是尼龙6和/或尼龙66;聚烯烃纤维,特别是聚丙烯和/或聚乙烯;丙烯酸纤维,和包括双组分纤维和多组分纤维的混合纤维,和/或天然纤维,特别是原棉,大麻,椰子,洋麻,黄麻和/或剑麻纤维,与上述合成纤维的混合物。
所有吸声效果的耦合是通过在具有限定穿孔轮廓4的高熔点塑料层(覆盖层)和带有粘结吸收器成份的低熔点塑料层之间形成中间层2来实现的,其中一方面的片材4以及中间层2与另一方面的吸收器的流动阻力之比从1:3至1:30,并且组件内的流动阻力的差异至少20%。
因此,第二塑料层,其与所述第一塑料层相比具有较低熔点,面对吸收器3。
本发明的另一个实施例包括一种制造吸声器的方法,其通过将非穿孔PA/PE片材背衬到包含结合与断裂纤维(BiCo,CO,WO,PET)的预成形的纤维无纺布吸收器3上,放入背衬模具中。
在背衬过程中,包含吸收器组件和PE的中间层2是由低熔点PE与毗邻的吸收器层3形成的。
PA层和准备成形的中间层2的穿孔是在冷却校准工具中实现的,其面向PA层的模具片设置有合适的针。因此,穿孔是在纤维无纺布吸收器3的方向实现的。因此,针刺(刺穿)通道到吸收层3向内变为材料复合物。由此提供的漏斗给出了亥姆霍兹共振器的附加效果。
准备好的组件1的声学效果,按照所希望的情况(片材4的穿孔的数量和排列),可通过穿孔通道的容量、通道直径和通道长度而改变。
针通道的漏斗形设计示于图1中,特别是,用一个锥形针穿孔工具可以实现,其圆锥长度最好是塑料片材4厚度的倍数。
通过针刺形成的磨损材料漏斗,其延伸到粘有吸收器组件的具有低熔点塑料层的中间层2,到背衬后的吸收器3,具有吸收行为方面的有利效果。
吸收器3到组件的成形受到影响,例如,供给热量,这可能会导致穿孔的几何结构相当大的变化,从而当片材4通过延伸和松弛被一体地嵌入的时候导致声学特性。因此,吸收器3优选热预制的(成其最终构型),在发动背衬过程之前。接着,进行针刺。
实例:
以下实施例,参见图2,以示例性方式示出了根据本发明的一吸声器1的结构。
一种带有30 g/m2PE层、穿孔227 E/cm2和0.07 +/- 0.05 mm穿孔直径的65 μm厚的PA/PE薄片4,被放置到由结合和断裂的纤维(BiCo,CO,WO,PET)组成的预制纤维无纺布吸收器3上,插入到背衬模具中。背衬模具的温度为135°C,背衬时间为55 s。
在背衬过程中,由吸收器组件和PE组成的中间层2是由低熔点PE与毗邻的吸收器层形成的。
后来确定的整体流动阻力(吸声器1)是从R = 2400 Nsm-3 至R = 3200 Nsm-3。
Claims (15)
1.一种多层多孔吸声器(1),包括一热变形吸收器(3)和一微穿孔片材(4),表面对表面粘在一起,其特征在于
所述微穿孔片材(4)包括两层材料,该材料包含具有特定穿孔几何形状的较高熔点第一塑料层,和与所述第一塑料层相比较低熔点的第二塑料层,其中,所述较低熔点的塑料层包括一中间层(2),毗邻吸收器(3),由吸收器组件和所述较低熔点塑料组成,并
所述较高熔点的塑料层和所述中间层(2)的覆盖层到所述吸收器(3)的流动阻力之比为1 : 3 至 1 : 30,且吸声器(1)的整体流动阻力R是从R=800Nsm-3至R =8000Nsm-3的范围内。
2.根据权利要求1所述的吸声器(1),其特征在于,所述高熔点的塑料层包括聚酰胺,聚对苯二甲酸乙二醇酯,聚醚酰亚胺,聚砜,聚醚砜和/或聚醚醚酮。
3.根据权利要求1或2所述的吸声器(1),其特征在于,所述与所述第一塑料层相比熔点较低的第二塑料层包括聚乙烯和聚丙烯及其共混物和共聚物,也用聚酰胺和/或聚酯;聚氨酯树脂;蜜胺树脂和/或环氧树脂。
4.根据权利要求1至3任一项所述的吸声器(1),其特征在于,所述热变形吸收器(3)包括纤维织物,纤维无纺布,或开孔泡沫。
5.根据权利要求4所述的吸声器(1),其特征在于,所述纤维织物或纤维无纺布包括
(a)合成纤维选自包括聚酯纤维,特别是聚对苯二甲酸乙二酯纤维,聚酰胺纤维,特别是尼龙6和/或尼龙66,聚烯烃纤维,特别是聚丙烯纤维和/或聚乙烯纤维,和聚丙烯纤维,以及包括双组分纤维和多组分纤维的纤维混合物;
(b)天然纤维选自包括原棉纤维,大麻纤维,椰子纤维,洋麻纤维,黄麻纤维和剑麻纤维,包括它们的混合物;或
(c)(a)和(b)的合成纤维的混合物。
6.根据权利要求5所述的吸声器(1),其特征在于,所述纤维织物或纤维无纺布具有从180至1800g/m2范围内的每单位面积的质量。
7.根据权利要求4所述的吸声器(1),其特征在于,所述开孔泡沫选自包括聚氨酯泡沫和三聚氰胺树脂泡沫。
8.根据权利要求7所述的吸声器(1),其特征在于,所述泡沫具有从8至120 g/l范围内的密度,优选从15至75 g/l。
9.根据权利要求1至8任一项所述的吸声器(1),其特征在于,片材(4)和中间层(2)到吸收器(3)的流动阻力的比率为1:10。
10.根据权利要求1至9任一项所述的吸声器(1),其特征在于,片材(4)到中间层(2)的流动阻力的比率为1:10。
11.根据权利要求1至10任一项所述的吸声器(1),其特征在于,吸声器(1)的整体流动阻力是从R =2000Nsm-3至R =4000Nsm-3的范围内。
12.一种制造根据权利要求1至11任一项所述的吸声器(1)的方法,以高于较低熔点的第二塑料层的熔融温度,以及低于较高熔点的塑料层的熔融温度的温度,将所述微穿孔片材(4)背衬到预成形的热变形吸收器(3)上。
13.根据权利要求12所述的方法,其中所述微穿孔片材(4)和所述预成形的热变形吸收器(3)是在热模具中变形的,尤其使用蒸汽。
14.一种制造根据权利要求1至11任一项所述的吸声器(1)的方法,其中,以高于较低熔点的第二塑料层的熔融温度,以及低于较高熔点的塑料层的熔融温度的温度,将非穿孔片材(4)背衬到所述预成形的热变形吸收器(3)上,并且所述穿孔是由存在于朝向较高熔点塑料层的冷却和/或校准模具的片中的针进行的。
15.根据权利要求14所述的方法,其中,所述穿孔是在表面的一部分上实现的。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP1020122165002 | 2012-09-17 | ||
DE102012216500.2A DE102012216500A1 (de) | 2012-09-17 | 2012-09-17 | Mehrlagiger gelochter Schallabsorber |
PCT/EP2013/069131 WO2014041163A1 (de) | 2012-09-17 | 2013-09-16 | Mehrlagiger gelochter schallabsorber |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104704555A true CN104704555A (zh) | 2015-06-10 |
CN104704555B CN104704555B (zh) | 2017-08-18 |
Family
ID=49165762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201380048152.2A Active CN104704555B (zh) | 2012-09-17 | 2013-09-16 | 多层多孔吸声器 |
Country Status (10)
Country | Link |
---|---|
US (1) | US9702141B2 (zh) |
EP (1) | EP2896038A1 (zh) |
JP (1) | JP6120388B2 (zh) |
KR (1) | KR102070712B1 (zh) |
CN (1) | CN104704555B (zh) |
DE (1) | DE102012216500A1 (zh) |
IN (1) | IN2015DN01978A (zh) |
MX (1) | MX342149B (zh) |
RU (1) | RU2639594C2 (zh) |
WO (1) | WO2014041163A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107025904A (zh) * | 2017-05-16 | 2017-08-08 | 姚斌斌 | 吸声装置及其系统 |
CN107090921A (zh) * | 2016-02-18 | 2017-08-25 | 北京市劳动保护科学研究所 | 一种复合吸声结构及其制作方法 |
CN111716859A (zh) * | 2020-06-12 | 2020-09-29 | 广西德福特科技有限公司 | 一种三组份吸音棉及其制备方法 |
CN114007855A (zh) * | 2019-04-23 | 2022-02-01 | 阿德勒佩尔泽控股有限公司 | 吸收性针刺层状复合材料 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202012004594U1 (de) * | 2012-05-09 | 2013-08-12 | Hp Pelzer Holding Gmbh | Kraftfahrzeugteile |
DE102012216500A1 (de) | 2012-09-17 | 2014-03-20 | Hp Pelzer Holding Gmbh | Mehrlagiger gelochter Schallabsorber |
DE102012222000A1 (de) * | 2012-11-30 | 2014-06-05 | Hp Pelzer Holding Gmbh | Herstellung wenigstens zweilagiger Bauteile |
DE102015209105A1 (de) | 2015-05-19 | 2016-11-24 | Hp Pelzer Holding Gmbh | Leichtes akustisches Bauteil |
US20170291681A1 (en) * | 2016-04-08 | 2017-10-12 | Harman International Industries, Incorporated | Composite insulation for reducing broadband aircraft noise |
RU2754697C2 (ru) * | 2017-03-03 | 2021-09-06 | Государственное научное учреждение "Институт механики металлополимерных систем имени В.А. Белого Национальной академии наук Беларуси" (ИММС НАН Беларуси) | Звукопоглощающая слоистая конструкция |
DE102017002552A1 (de) | 2017-03-17 | 2018-09-20 | Carl Freudenberg Kg | Schallabsorbierendes Textilkomposit |
AT521782B1 (de) * | 2019-01-10 | 2020-07-15 | Greiner Perfoam Gmbh | Kfz-Formteil |
DE102019203112A1 (de) * | 2019-03-07 | 2020-09-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Schallabsorber |
DE102019208743A1 (de) * | 2019-06-17 | 2020-12-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Schallabsorber |
EP3935624B1 (de) * | 2019-03-07 | 2023-08-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Schallabsorber, bauwerk und verwendung eines schallabsorbers |
KR102219220B1 (ko) * | 2020-10-21 | 2021-02-23 | 박서경 | 케나프 부직포를 이용한 준불연 흡음 패널 및 이의 제조 방법 |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4715473A (en) * | 1984-12-14 | 1987-12-29 | Irbit Research & Consulting Ag | Foam acoustic absorption member |
DE4422585C1 (de) * | 1994-06-28 | 1995-10-05 | Freudenberg Carl Fa | Luftschallabsorbierendes Formteil und Verfahren zu seiner Herstellung |
CN1235578A (zh) * | 1996-10-29 | 1999-11-17 | 里特汽车国际有限公司 | 超轻、多功能、隔声组合件 |
US6102465A (en) * | 1997-10-16 | 2000-08-15 | Nissan Motor Co., Ltd. | Noise insulating structure for automotive vehicle passenger compartment |
CN1809871A (zh) * | 2003-05-28 | 2006-07-26 | 爱尔兰克利翁控股公司 | 吸声器 |
CN1937031A (zh) * | 2005-07-13 | 2007-03-28 | 丰和纤维工业株式会社 | 车用隔声材料 |
CN1332801C (zh) * | 2002-11-05 | 2007-08-22 | Hp-舍米·佩尔策研究发展公司 | 用于形成吸音层系统的直接发泡背衬的方法 |
US20080067002A1 (en) * | 2004-11-06 | 2008-03-20 | Klaus Pfaffelhuber | Acoustic Cover Part for a Vehicle |
CN101601085A (zh) * | 2007-05-02 | 2009-12-09 | 拜耳材料科技股份有限公司 | 用于汽车车身部件的轻质隔声内衬及其制造方法 |
CN102057421A (zh) * | 2008-04-14 | 2011-05-11 | 3M创新有限公司 | 多层吸声片材 |
WO2012006663A1 (en) * | 2010-07-13 | 2012-01-19 | Bellmax Acoustic Pty Ltd | An acoustic panel |
CN102362309A (zh) * | 2009-02-07 | 2012-02-22 | 莱纳·罗塞·威尔逊 | 声学吸收体、声学变换器和用于制造声学吸收体或声学变换器的方法 |
DE102010035431A1 (de) * | 2010-08-26 | 2012-03-01 | Entwicklungsgesellschaft für Akustik (EfA) mit beschränkter Haftung | Breitbandiger Schallabsorber |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6617002B2 (en) | 1998-07-24 | 2003-09-09 | Minnesota Mining And Manufacturing Company | Microperforated polymeric film for sound absorption and sound absorber using same |
DE19856254A1 (de) * | 1998-12-07 | 2000-06-08 | Freudenberg Carl Fa | Klebstoffpulver |
US6345688B1 (en) * | 1999-11-23 | 2002-02-12 | Johnson Controls Technology Company | Method and apparatus for absorbing sound |
US20020117351A1 (en) * | 2001-02-27 | 2002-08-29 | Hung-Lieh Chen | Sound-eliminating board |
DE10143167A1 (de) | 2001-09-04 | 2003-03-27 | Hp Chem Pelzer Res & Dev Ltd | Wärme- und schalldämmende Verkleidung für den Motorraum von Kraftfahrzeugen |
JP3613727B2 (ja) * | 2001-09-06 | 2005-01-26 | 東洋紡績株式会社 | 成形性に優れた吸音材 |
US20040023587A1 (en) * | 2002-08-02 | 2004-02-05 | C.T.A. Acoustics | Acoustical insulation laminate with polyolefin layer and process for making |
JP2004122545A (ja) * | 2002-10-01 | 2004-04-22 | Sekisui Chem Co Ltd | 熱成形性芯材及びこれを用いた自動車用内装材 |
EP1428656A1 (en) * | 2002-12-09 | 2004-06-16 | Rieter Technologies A.G. | Ultralight trim composite |
DE20316050U1 (de) | 2003-10-20 | 2003-12-18 | Sevex Ag | Schallabsorbierender Hitzeschild |
US20060112146A1 (en) | 2004-11-22 | 2006-05-25 | Nec Laboratories America, Inc. | Systems and methods for data analysis and/or knowledge management |
US20070137926A1 (en) * | 2005-12-15 | 2007-06-21 | Lear Corporation | Acoustical component for enhancing sound absorption properties while preserving barrier performance in a vehicle interior |
JP2007291834A (ja) * | 2006-03-31 | 2007-11-08 | Yamaha Corp | 吸音パネル及び吸音パネルの製造方法 |
DE102006027230A1 (de) * | 2006-06-09 | 2007-12-20 | EFA -Entwicklungsgesellschaft für Akustik mbH | Akustisch und thermisch wirkende Isolation |
DE202006009245U1 (de) * | 2006-06-09 | 2007-10-11 | Carcoustics Tech Center Gmbh | Luftschall absorbierende Motorraumverkleidung für Kraftfahrzeuge, insbesondere Motorhaubenverkleidung |
US7838125B2 (en) | 2007-12-14 | 2010-11-23 | Pelzer Acoustic Products, Llc | Microperforated metal foil |
EP2370623B1 (en) * | 2008-12-04 | 2019-05-08 | Zephyros Inc. | Nonwoven textile made from short fibers |
US20100213002A1 (en) * | 2009-02-26 | 2010-08-26 | Honeywell International Inc. | Fibrous materials, noise suppression materials, and methods of manufacturing noise suppression materials |
EP2279859B1 (de) * | 2009-07-10 | 2016-05-25 | HP Pelzer Holding GmbH | Akustisch wirksame Dach-Versteifungs-Dämpfungs-Platte und Verfahren zu ihrer Herstellung |
DE102010002049B4 (de) * | 2010-02-17 | 2019-06-27 | Röchling Automotive AG & Co. KG | Akustisch absorbierend wirksames KFZ-Innenverkleidungsbauteil |
DE102012216500A1 (de) | 2012-09-17 | 2014-03-20 | Hp Pelzer Holding Gmbh | Mehrlagiger gelochter Schallabsorber |
-
2012
- 2012-09-17 DE DE102012216500.2A patent/DE102012216500A1/de active Pending
-
2013
- 2013-09-16 US US14/426,556 patent/US9702141B2/en active Active
- 2013-09-16 KR KR1020157006460A patent/KR102070712B1/ko active IP Right Grant
- 2013-09-16 RU RU2015113976A patent/RU2639594C2/ru active
- 2013-09-16 WO PCT/EP2013/069131 patent/WO2014041163A1/de active Application Filing
- 2013-09-16 EP EP13762143.9A patent/EP2896038A1/de active Pending
- 2013-09-16 JP JP2015531588A patent/JP6120388B2/ja active Active
- 2013-09-16 IN IN1978DEN2015 patent/IN2015DN01978A/en unknown
- 2013-09-16 MX MX2015003027A patent/MX342149B/es active IP Right Grant
- 2013-09-16 CN CN201380048152.2A patent/CN104704555B/zh active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4715473A (en) * | 1984-12-14 | 1987-12-29 | Irbit Research & Consulting Ag | Foam acoustic absorption member |
DE4422585C1 (de) * | 1994-06-28 | 1995-10-05 | Freudenberg Carl Fa | Luftschallabsorbierendes Formteil und Verfahren zu seiner Herstellung |
CN1235578A (zh) * | 1996-10-29 | 1999-11-17 | 里特汽车国际有限公司 | 超轻、多功能、隔声组合件 |
US6102465A (en) * | 1997-10-16 | 2000-08-15 | Nissan Motor Co., Ltd. | Noise insulating structure for automotive vehicle passenger compartment |
CN1332801C (zh) * | 2002-11-05 | 2007-08-22 | Hp-舍米·佩尔策研究发展公司 | 用于形成吸音层系统的直接发泡背衬的方法 |
CN1809871A (zh) * | 2003-05-28 | 2006-07-26 | 爱尔兰克利翁控股公司 | 吸声器 |
US20080067002A1 (en) * | 2004-11-06 | 2008-03-20 | Klaus Pfaffelhuber | Acoustic Cover Part for a Vehicle |
CN1937031A (zh) * | 2005-07-13 | 2007-03-28 | 丰和纤维工业株式会社 | 车用隔声材料 |
CN101601085A (zh) * | 2007-05-02 | 2009-12-09 | 拜耳材料科技股份有限公司 | 用于汽车车身部件的轻质隔声内衬及其制造方法 |
CN102057421A (zh) * | 2008-04-14 | 2011-05-11 | 3M创新有限公司 | 多层吸声片材 |
CN102362309A (zh) * | 2009-02-07 | 2012-02-22 | 莱纳·罗塞·威尔逊 | 声学吸收体、声学变换器和用于制造声学吸收体或声学变换器的方法 |
WO2012006663A1 (en) * | 2010-07-13 | 2012-01-19 | Bellmax Acoustic Pty Ltd | An acoustic panel |
DE102010035431A1 (de) * | 2010-08-26 | 2012-03-01 | Entwicklungsgesellschaft für Akustik (EfA) mit beschränkter Haftung | Breitbandiger Schallabsorber |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107090921A (zh) * | 2016-02-18 | 2017-08-25 | 北京市劳动保护科学研究所 | 一种复合吸声结构及其制作方法 |
CN107025904A (zh) * | 2017-05-16 | 2017-08-08 | 姚斌斌 | 吸声装置及其系统 |
CN114007855A (zh) * | 2019-04-23 | 2022-02-01 | 阿德勒佩尔泽控股有限公司 | 吸收性针刺层状复合材料 |
CN111716859A (zh) * | 2020-06-12 | 2020-09-29 | 广西德福特科技有限公司 | 一种三组份吸音棉及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
RU2015113976A (ru) | 2016-11-10 |
WO2014041163A1 (de) | 2014-03-20 |
RU2639594C2 (ru) | 2017-12-21 |
CN104704555B (zh) | 2017-08-18 |
BR112015005557A2 (pt) | 2017-07-04 |
US20150267401A1 (en) | 2015-09-24 |
EP2896038A1 (de) | 2015-07-22 |
US9702141B2 (en) | 2017-07-11 |
JP2015534113A (ja) | 2015-11-26 |
MX2015003027A (es) | 2015-06-10 |
IN2015DN01978A (zh) | 2015-08-14 |
DE102012216500A1 (de) | 2014-03-20 |
KR20150056774A (ko) | 2015-05-27 |
JP6120388B2 (ja) | 2017-04-26 |
KR102070712B1 (ko) | 2020-01-29 |
MX342149B (es) | 2016-09-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104704555A (zh) | 多层多孔吸声器 | |
US6802389B2 (en) | Multi-density sound attenuating laminates and methods of making same | |
AU2003231005B2 (en) | Gradient density padding material and method of making same | |
KR100802677B1 (ko) | 수직 배열 구조를 가진 흡음재와 그 제조방법 | |
KR101087008B1 (ko) | 자동차용 성형 부설 내장재 | |
US20070243366A1 (en) | Multidensity liner/ insulator formed from multidimensional pieces of polymer fiber blanket insulation | |
EP3212467B1 (en) | Fibrous automotive cladding | |
JP2018513309A (ja) | 軽量エンジン取り付けトリム部品 | |
KR20140067344A (ko) | 자동차용 복합흡음재 및 그 제조방법 | |
JP2013086599A (ja) | 車両用アンダーカバー及びその製造方法 | |
JP2003316366A (ja) | 吸音材及びその製造方法 | |
US10800352B2 (en) | Firewall | |
TW201716268A (zh) | 用於減少噪音的多層吸音裝飾件與其使用 | |
KR20210099702A (ko) | Pet펠트를 활용한 수직 배열 구조를 가진 흡차음재와 그 제조방법 | |
BR112015005557B1 (pt) | Absorvedor de som perfurado de multicamadas e processo para a produção de um absorvedor de som |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address | ||
CP03 | Change of name, title or address |
Address after: No. 4 Kabel Street, Hagen, Germany Patentee after: Adler Per Ze Holdings Limited Address before: 51 Wittenbrook Street, Germany Patentee before: HP PELZER HOLDING GMBH |