CN201824967U - Novel automobile sound insulation and shock absorption structure - Google Patents
Novel automobile sound insulation and shock absorption structure Download PDFInfo
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- CN201824967U CN201824967U CN2010205333431U CN201020533343U CN201824967U CN 201824967 U CN201824967 U CN 201824967U CN 2010205333431 U CN2010205333431 U CN 2010205333431U CN 201020533343 U CN201020533343 U CN 201020533343U CN 201824967 U CN201824967 U CN 201824967U
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Abstract
本实用新型提供了一种新型汽车隔音减震结构，属于汽车技术领域。它解决了现有的车用减振材料作用比较单一，从而导致其对吸音、隔音、减振、密封等的作用效果差等问题。本新型汽车隔音减震结构，固连于车辆内侧的钣金表面上，其包括呈板状的本体，本体分为能够实现阻尼减震的隔音减震层，增强钣金刚度的加强层和隔热层。本新型汽车隔音减震结构中采用三层材料复合组成，其每层材料具有本材料的特质性能，从而实现减震板具有优质的隔音、减震、加强和隔热等多重作用，大大提升了车体的NVH性能。
The utility model provides a novel automobile sound insulation and shock absorption structure, which belongs to the technical field of automobiles. It solves the problem that the existing vibration-damping materials for vehicles have a single function, which leads to poor effects on sound absorption, sound insulation, vibration reduction, sealing and the like. The new automobile sound insulation and shock absorption structure is fixed on the sheet metal surface inside the vehicle. It includes a plate-shaped body. thermal layer. The new car sound insulation and shock absorption structure is composed of three layers of materials. Each layer of material has the characteristic performance of this material, so that the shock absorption plate has multiple functions such as high-quality sound insulation, shock absorption, reinforcement and heat insulation, which greatly improves the performance of the vehicle. NVH performance of the car body.
Description
Technical field
The utility model belongs to automobile technical field, relates to a kind of sound insulation shock-damping structure, particularly a kind of new automobile sound insulation shock-damping structure.
Background technology
At present, vehicle has become the vehicle indispensable in people's daily life, and along with development of science and technology, and the performance of vehicle each side is excellent more, thereby provides premium-quality result of use for people.
For car, NVH (noise, vibration and traveling comfort) performance is one of major criterion of weighing its class and brand, becomes the important counterweight of the various brands vehicle market competitiveness.The NVH performance of car load can promote by ACTIVE CONTROL and Passive Control dual mode, aspect Passive Control, because the difficulty that body structure is changed is bigger, using the material with NVH effect (as sound-absorbing, sound insulation, vibration damping, sealing etc.), to carry out the vibration and noise reducing processing be simple relatively and necessary.
At present, the mode that Material Used carries out vibration damping mainly contains two kinds, i.e. damping vibration attenuation and strengthen vibration damping: damping vibration attenuation is that the vibrational energy by material dissipation panel beating reaches the vibration damping purpose; And strengthen vibration damping is to improve the natural frequency of vehicle body panel beating by material, thereby avoids resonance.Existing automobile vibration reduction material majority is a homogenous material, thereby its effect is more single, damping material can not play the remarkable humidification to panel beating rigidity, and the damping capacity of reinforcement material is undesirable, therefore its action effect to sound-absorbing, sound insulation, vibration damping, sealing etc. is poor, can not reach premium-quality performance.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of new automobile sound insulation shock-damping structure that utilizes the material composite structure to promote action effects such as noise reduction, damping.
The purpose of this utility model can realize by following technical proposal: a kind of new automobile sound insulation shock-damping structure, be fixed on the panel beating surface of vehicle interior side, it comprises the body that is tabular, it is characterized in that, described body is divided into the sound insulation buffer layer that can realize damping shock absorption, strengthens the enhancement Layer and the thermal insulation layer of panel beating rigidity.
The sound insulation buffer layer adopts metal powder butyl rubber material to make, and it is higher that the damping factor numerical value of this material is compared the traditional asphalt material, and the soundproof effect excellence, brought into play damping and deadening to panel beating; Enhancement Layer adopts neoprene modified epoxy material to make, and it has brought into play the humidification to panel beating rigidity; Sound insulation buffer layer, enhancement Layer and thermal insulation layer three are folded mutually and parallel with panel beating in the car to paste mutually, thereby has comprehensively promoted damping of vibrations and soundproof effect, and it is more excellent that its NVH performance is compared the application homogenous material.
In above-mentioned new automobile sound insulation shock-damping structure, three layers order is sound insulation buffer layer, enhancement Layer, thermal insulation layer from the inside to the outside in the described body.Directly the recline plane of panel beating in the car of sound insulation buffer layer, outermost layer is a thermal insulation layer, so effectively intercepted when heat is passed to skin.
In above-mentioned new automobile sound insulation shock-damping structure, be connected by bonding between described sound insulation buffer layer and the enhancement Layer.It is bonding to adopt acrylate adhesive to carry out, make its in conjunction with firm, reliability is high.
In above-mentioned new automobile sound insulation shock-damping structure, the bottom surface of described sound insulation buffer layer scribbles adhesion agent, and the adhesion agent outside is with barrier paper.It adopts acrylate adhesive, and barrier paper is torn off, can use adhesion agent that body and vehicle body panel beating are directly carried out pressure-sensitive adhesive.
In above-mentioned new automobile sound insulation shock-damping structure, the thickness of described enhancement Layer is 1.0mm～1.2mm.The enhancement Layer of this thickness can be guaranteed the rigidity of vehicle body panel beating, improves the natural resonant frequency of steel plate, makes the numerical value of its natural frequency and the natural frequency scope of vehicle motor and other subsystems produce obvious difference, thereby avoids producing resonance and sympathetic response.
In above-mentioned new automobile sound insulation shock-damping structure, described thermal insulation layer adopts metal to make.Thermal insulation layer is that aluminium foil is made, and it is good thermal insulation material, makes body have effect of heat insulation well, is more conducive to promote the traveling comfort of car load.
Compared with prior art, adopt the compound composition of trilaminate material in this new automobile sound insulation shock-damping structure, its every layer material has the speciality performance of this material, thereby realizes that vibration damper plate has premium-quality sound insulation, damping, reinforcement and multiple action such as heat insulation, has promoted the NVH performance of car body greatly.
Description of drawings
Fig. 1 is the planar structure scheme drawing of this new automobile sound insulation shock-damping structure.
Among the figure, 1, body; 1a, sound insulation buffer layer; 1b, enhancement Layer; 1c, thermal insulation layer; 2, panel beating.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, this new automobile sound insulation shock-damping structure is on smooth panel beating 2 surfaces that are fixed on vehicle interior side, it comprises the body 1 that is tabular, and body 1 is divided into the sound insulation buffer layer 1a that can realize damping shock absorption, strengthens the enhancement Layer 1b and the thermal insulation layer 1c of panel beating 2 rigidity.
Sound insulation buffer layer 1a is a metal powder butyl rubber material, and enhancement Layer 1b is a neoprene modified epoxy material, and thermal insulation layer 1c is that metal aluminum foil is made.With aluminium foil and applying of neoprene modified epoxy material layer and the pre-high-temperature baking sclerosis of process, on the exposed lateral side of neoprene modified epoxy material layer, smear acrylate adhesive afterwards, thereby make this side and metal powder butyl rubber material layer bonding, the exposed face of metal powder butyl rubber material layer is continued to smear acrylate adhesive, and the adhesion agent outside is with barrier paper.Whole sheet material uses in vehicle general assembly operation, realizes having reduced the energy consumption to body paint baking line.
The metal powder modified butyl rubber is formulated by reaction by butyl rubber, metal powder and each analog assistant, and relative lamination coating of its density and expanded material are big and be 1.6g/cm
3When the vehicle body steel plate vibrated, the macromolecular chain of rubber produced motion, and rubber produces repeatedly repeated deformation (stretching, compression, shearing etc.) and makes system change a part of elastic energy into irreversible heat energy dissipation; When material was subjected to vibration that strain takes place, metal powder helped to increase the shear deformation of interlayer poly-mer in addition, because the interpolation of metal powder filler has limited the activity in the mutual transition process of molecule long-chain, had strengthened the conversion of energy; The frictional heat of metal powder filler is beneficial in glass transition region simultaneously, and the internal friction effect between filler and poly-mer and the filler increases with the aggravation of molecular motion.Above-described performance all can significantly improve damping factor numerical value, reach premium-quality damping vibration attenuation, sound deadening, especially for the bigger vehicle of car door area, the vibrational energy after its excited target is stronger, uses the effectiveness in vibration suppression of this material more more excellent than using homogenous material.
The curing agent that contains certain content in the material prescription of neoprene modified epoxy material layer, after high-temperature baking solidified, the material sclerosis formed the thickness of 1.0mm～1.2mm.It carries out reinforcement to the steel plate part, increase steel plate rigidity, reduced the sensivity of 2 pairs of vibrations of panel beating, improved the natural resonant frequency of steel plate, make the numerical value of its natural frequency and the natural frequency scope of vehicle motor and other subsystems produce obvious difference, and be difficult for producing resonance and sympathetic response.Aluminium foil is good thermal insulation material, and it makes whole body 1 have good effect of heat insulation, is more conducive to promote the traveling comfort of car load.
During application, the barrier paper that attaches on the body 1 is torn off, body 1 is directly carried out pressure-sensitive adhesive get final product on the inboard panel beating 2 of vehicle body.This moment by vehicle body panel beating 2 to the inside direction be followed successively by sound insulation buffer layer 1a, enhancement Layer 1b, the thermal insulation layer 1c of body 1.
Specific embodiment described herein only is that the utility model spirit is made casehistory.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used body 1 morely; Sound insulation buffer layer 1a; Enhancement Layer 1b; Thermal insulation layer 1c; Panel beating 2 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205333431U CN201824967U (en) | 2010-09-17 | 2010-09-17 | Novel automobile sound insulation and shock absorption structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205333431U CN201824967U (en) | 2010-09-17 | 2010-09-17 | Novel automobile sound insulation and shock absorption structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201824967U true CN201824967U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205333431U Expired - Fee Related CN201824967U (en) | 2010-09-17 | 2010-09-17 | Novel automobile sound insulation and shock absorption structure |
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| Country | Link |
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| CN (1) | CN201824967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691325A (en) * | 2014-11-24 | 2016-06-22 | 上海新安汽车隔音毡有限公司 | Enhanced car roof sound-insulation heat-insulation mat and manufacturing method thereof |
-
2010
- 2010-09-17 CN CN2010205333431U patent/CN201824967U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691325A (en) * | 2014-11-24 | 2016-06-22 | 上海新安汽车隔音毡有限公司 | Enhanced car roof sound-insulation heat-insulation mat and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20130917 |