CN103552518B - A kind of preforming sound insulation blob of viscose and installation method thereof - Google Patents
A kind of preforming sound insulation blob of viscose and installation method thereof Download PDFInfo
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- CN103552518B CN103552518B CN201310473817.6A CN201310473817A CN103552518B CN 103552518 B CN103552518 B CN 103552518B CN 201310473817 A CN201310473817 A CN 201310473817A CN 103552518 B CN103552518 B CN 103552518B
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- preforming
- sound insulation
- viscose
- rack body
- support slot
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- 238000009413 insulation Methods 0.000 title claims abstract description 45
- 229920000297 Rayon Polymers 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 9
- 210000002421 cell wall Anatomy 0.000 claims description 15
- 238000010009 beating Methods 0.000 claims description 14
- 239000003566 sealing material Substances 0.000 claims description 8
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000007665 sagging Methods 0.000 abstract description 4
- 239000013521 mastic Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 11
- 238000001962 electrophoresis Methods 0.000 description 10
- 238000007789 sealing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Landscapes
- Body Structure For Vehicles (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The object of the invention is the preforming sound insulation blob of viscose and the installation method thereof that propose a kind of practicality.Preforming sound insulation blob of viscose of the present invention comprises rack body and het expansion leakproofing material, and key is that described rack body is around being provided with opening direction support slot outwardly, and described het expansion leakproofing material is arranged in support slot; Described rack body is provided with the buckle for being connected with vehicle body sheet metal, and described buckle protrudes from the outside of rack body.Above-mentioned support slot can limit the flow direction of het expansion leakproofing material when expanded by heating, het expansion leakproofing material is outwards foamed expansion at grade simultaneously, avoid sagging, block the cross section of whole cavity, thus prevent the noise imported into through bodywork cavity, the NVH performance of automobile is improved.Preforming acoustic mastic block structure of the present invention is simple, and cost is low, and its mounting process is simple, and sound insulation blob of viscose accurately can be located, soundproof effect is excellent.
Description
Technical field
The invention belongs to the technical field of automobile cavity sound insulation, especially for the automobile cavity needing some special arrangement, be specifically related to a kind of preforming sound insulation blob of viscose and installation method thereof.
Background technology
Along with improving constantly of people's environmental consciousness, vehicle noise problem has caused the great attention of the whole society.Wherein, pass-by noise controls must with the relevant environmental regulation of increasingly stringent and standard for foundation, and internal car noise controls then to be devoted to meet the day by day harsh requirement of user to acoustic comfort in car.Therefore, improve vehicle noise level of control and become new focus of the competition and technological development direction.In this context, the NVH(Noise/Vibration/Harshness of vehicle) performance develops into important design objective just gradually, and be also one of vehicle performance index of being concerned about of user, therefore NVH also becomes attraction naturally gradually.The automobile noise control level will become the indispensable important factor in order determining automobile development success or not, and associated analysis, test and material technology etc. become the new focus that automotive engineering field is paid close attention to naturally.
When high velocity air in vehicle side cavity and cavity obstacle rub, eddy current can be formed in cavity wall, produce turbulent air noise, cause the resonance of sheet metal component, thus produce cavity panel beating resonance noise; And high velocity air also serves transmission effect to pass-by noise.The usual employing cavity technology that is filled with a sealing blocks gusset cavity.At present, sound insulation blob of viscose is widely used in vehicle cavity component as the cavity technology that is filled with a sealing, and sound insulation blob of viscose generally comprises carrier and preforming thermal expansion material, after expanding material expanded by heating, carrier and framing member wooden partition bonding are got up, thus seals up whole cavity.But present sound insulation blob of viscose exists following problems: the flowing 1, easily intercepting electrophoresis liquid, cause the electrophoretic effects of cavity not good; 2, carrier generally adopts metal sheet, not only easily comes off, and easily and cavity panel beating rub and make a noise; 3, easily there is sagging in het expansion leakproofing material in reflow process, makes the thermal expansion process of het expansion leakproofing material not controlled, causes cavities seals not tight; Accurately cannot locate when 4, installing, easily drop in cavity.
Summary of the invention
The object of the invention is the preforming sound insulation blob of viscose and the installation method thereof that propose a kind of practicality.
Preforming sound insulation blob of viscose of the present invention comprises rack body and het expansion leakproofing material, and key is that described rack body is around being provided with opening direction support slot outwardly, and described het expansion leakproofing material is arranged in support slot; Described rack body is provided with the buckle for being connected with vehicle body sheet metal, and described buckle protrudes from the outside of rack body.
The installation method of above-mentioned preforming sound insulation blob of viscose comprises the steps:
A: het expansion leakproofing material is embedded in the support slot of rack body by injection moulding;
B: the buckle of preforming sound insulation blob of viscose is snapped onto in the mounting hole of automobile cavity panel beating, thus preforming sound insulation blob of viscose and automobile cavity panel beating are connected and fixed;
C: sent into by vehicle body in electrophoretic paint baker and toast, het expansion leakproofing material foams, thus rack body and vehicle body sheet metal is closely bonded to one.
Above-mentioned support slot can limit the flow direction of het expansion leakproofing material when expanded by heating, het expansion leakproofing material is outwards foamed expansion at grade simultaneously, avoid sagging, block the cross section of whole cavity, thus prevent the noise imported into through bodywork cavity, reach the object of the vibration isolation improved further in car passenger cabin, sound insulation, vibration damping, noise reduction, the NVH performance of automobile is improved.Fix preforming sound insulation blob of viscose by buckle, accurately can locate preforming sound insulation blob of viscose, prevent the rotation of preforming sound insulation blob of viscose, ensure that the conformability in expanded material and surrounding panel beating gap, thus guarantee the integraty of the sealing in panel beating gap.
Further, the top cell wall of described support slot is provided with several breach, and described het expansion leakproofing material is provided with breach or recess in the position of corresponding cell wall breach.Such electrophoresis liquid just successfully along the indentation, there flowing of cell wall above support slot, can be avoided electrophoresis liquid to accumulate, improves electrophoretic effects.Preferred structure is the top cell wall of described support slot and the either flush of rack body, accumulates end face at rack body to avoid electrophoresis liquid.
Further, the end face of described rack body is coated with and exceeds cell wall or the het expansion sealing material layer concordant with cell wall above support slot above support slot, and described rack body and het expansion sealing material layer are provided with the identical through hole in several positions.Electrophoresis liquid so also can be made along through hole free-flowing, improve electrophoretic effects; Het expansion sealing material layer, after expanded by heating, not only can close through hole, can also improve sealing and soundproof effect further.
Further, described rack body adopts tenacity nylon material to make, and not only lightweight, soundproof effect is good, and has the compatibility good with the application conditioning fluid such as Coating Pretreatment liquid, electrophoresis liquid.
Further, described het expansion leakproofing material is EVA or EMA or neoprene, above-mentioned material and tenacity nylon material and vehicle body sheet metal very good in conjunction with effect.
Preforming acoustic mastic block structure of the present invention is simple, and cost is low, and its mounting process is simple, and sound insulation blob of viscose accurately can be located, soundproof effect is excellent.
Accompanying drawing explanation
Fig. 1 is the structural representation of preforming sound insulation blob of viscose of the present invention.
Fig. 2 is the birds-eye view of preforming sound insulation blob of viscose of the present invention.
Fig. 3 is the A-A view in Fig. 2.
Fig. 4 is the front elevation of preforming sound insulation blob of viscose of the present invention.
Fig. 5 is the B-B view in Fig. 4.
Fig. 6 is the installation site schematic diagram of preforming sound insulation blob of viscose of the present invention.
Fig. 7 is the scheme of installation of preforming sound insulation blob of viscose of the present invention in cavity.
Fig. 8 is the C-C view in Fig. 7.
Fig. 9 is the cutaway view of the preforming sound insulation blob of viscose of embodiment 2.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the effect and principle of work etc. of the specific embodiment of the present invention as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail.
Embodiment 1:
As shown in Fig. 1 ~ 5, the preforming sound insulation blob of viscose of the present embodiment comprises the rack body 1 adopting tenacity nylon material to make and the het expansion leakproofing material 2 adopting EVA to make, rack body 1 is around being provided with opening direction support slot 3 outwardly, and described het expansion leakproofing material 2 is arranged in support slot 3; Described rack body 1 is provided with the buckle 4 for being connected with vehicle body sheet metal, and described buckle 4 protrudes from the outside of rack body 1.
The top cell wall of support slot 3 is provided with several breach 5, and described het expansion leakproofing material 2 is provided with breach 5 in the position of corresponding cell wall breach 5.Such electrophoresis liquid just successfully along the breach 5 place flowing of cell wall above support slot 3, can be avoided electrophoresis liquid to accumulate, improves electrophoretic effects.
As shown in Figure 6, above-mentioned preforming sound insulation blob of viscose is generally installed in the B post cavity 6 of automobile, and its concrete installation method comprises the steps:
A: be embedded in the support slot 3 of rack body 1 by injection moulding by het expansion leakproofing material 2, makes preforming sound insulation blob of viscose; The profile of this preforming sound insulation blob of viscose conforms to B post cavity 6 cross sectional shape to be installed, and the distance be slightly less than between B post cavity 6(preforming sound insulation blob of viscose to be installed and the panel beating of B post cavity 6 is that 4 ~ 6mm is advisable) so that electrophoresis liquid flows through smoothly;
B: the buckle 4 of preforming sound insulation blob of viscose is snapped onto in the mounting hole of automobile cavity 6 panel beating, thus preforming sound insulation blob of viscose and B post cavity 6 panel beating are connected and fixed (as shown in Figure 7);
C: vehicle body is sent in electrophoretic paint baker and toast, het expansion leakproofing material 2 foams, thus rack body 1 and B post cavity 6 panel beating is closely bonded to one, thus seals up whole B post cavity 6(as shown in Figure 8).
Fix preforming sound insulation blob of viscose by buckle 4, accurately can locate preforming sound insulation blob of viscose, prevent the rotation of preforming sound insulation blob of viscose, ensure that the conformability in expanded material and surrounding panel beating gap, thus guarantee the integraty of the sealing in panel beating gap.Above-mentioned support slot 3 can limit the flow direction of het expansion leakproofing material 2 when expanded by heating, het expansion leakproofing material 2 is outwards foamed expansion at grade simultaneously, avoid sagging, block the cross section of whole cavity 6, thus prevent the noise imported into through bodywork cavity 6, reach the object of the vibration isolation improved further in car passenger cabin, sound insulation, vibration damping, noise reduction, the NVH performance of automobile is improved.
Embodiment 2:
As shown in Figure 9, as different from Example 1, the end face of the rack body 1 of the present embodiment is coated with the het expansion sealing material layer 7 concordant with cell wall above support slot 3, and described rack body 1 and het expansion sealing material layer 7 are provided with the identical through hole in several positions 8.Electrophoresis liquid so also can be made along through hole 8 free-flowing, improve electrophoretic effects; Het expansion sealing material layer 7, after expanded by heating, not only can close through hole 8, can also improve sealing and soundproof effect further.
Other structure of the present embodiment and installation method identical with embodiment 1, repeat no more herein.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or directly apply to other occasion, all within protection scope of the present invention without improving.
Claims (6)
1. a preforming sound insulation blob of viscose, comprises rack body and het expansion leakproofing material, and described rack body is around being provided with opening direction support slot outwardly, and described het expansion leakproofing material is arranged in support slot; Described rack body is provided with the buckle for being connected with vehicle body sheet metal, and described buckle protrudes from the outside of rack body; It is characterized in that the end face of described rack body is coated with and exceed cell wall or the het expansion sealing material layer concordant with cell wall above support slot above support slot, described rack body and het expansion sealing material layer are provided with the identical through hole in several positions.
2. preforming sound insulation blob of viscose according to claim 1, it is characterized in that the top cell wall of described support slot is provided with several breach, described het expansion leakproofing material is provided with breach or recess in the position of corresponding cell wall breach.
3. preforming sound insulation blob of viscose according to claim 2, is characterized in that the top cell wall of described support slot and the either flush of rack body.
4. the preforming sound insulation blob of viscose according to claim 1 or 2 or 3, is characterized in that described rack body adopts tenacity nylon material to make.
5. the preforming sound insulation blob of viscose according to claim 1 or 2 or 3, is characterized in that described het expansion leakproofing material is EVA or EMA or neoprene.
6. the installation method of preforming sound insulation blob of viscose according to claim 1, is characterized in that comprising the steps:
A: het expansion leakproofing material is embedded in the support slot of rack body by injection moulding;
B: the buckle of preforming sound insulation blob of viscose is snapped onto in the mounting hole of automobile cavity panel beating, thus preforming sound insulation blob of viscose and automobile cavity panel beating are connected and fixed;
C: sent into by vehicle body in electrophoretic paint baker and toast, het expansion leakproofing material foams, thus rack body and vehicle body sheet metal is closely bonded to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310473817.6A CN103552518B (en) | 2013-10-12 | 2013-10-12 | A kind of preforming sound insulation blob of viscose and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310473817.6A CN103552518B (en) | 2013-10-12 | 2013-10-12 | A kind of preforming sound insulation blob of viscose and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103552518A CN103552518A (en) | 2014-02-05 |
| CN103552518B true CN103552518B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310473817.6A Active CN103552518B (en) | 2013-10-12 | 2013-10-12 | A kind of preforming sound insulation blob of viscose and installation method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115257933A (en) * | 2022-08-18 | 2022-11-01 | 奇瑞汽车股份有限公司 | Automobile body structure reinforcing rubber block |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011150142A2 (en) * | 2010-05-28 | 2011-12-01 | Henkel Ag & Co. Kgaa | Acoustic baffle device |
| CN102582534A (en) * | 2012-02-21 | 2012-07-18 | 奇瑞汽车股份有限公司 | Preformed sound-insulation rubber block and installation method therefor |
| CN202345572U (en) * | 2011-10-31 | 2012-07-25 | 长城汽车股份有限公司 | Sound insulation rubber plate with leakage noise elimination device |
| CN102991434A (en) * | 2012-12-18 | 2013-03-27 | 奇瑞汽车股份有限公司 | Swollen rubber block and preparation and installation methods thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6413611B1 (en) * | 2000-05-01 | 2002-07-02 | Sika Corporation | Baffle and reinforcement assembly |
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2013
- 2013-10-12 CN CN201310473817.6A patent/CN103552518B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011150142A2 (en) * | 2010-05-28 | 2011-12-01 | Henkel Ag & Co. Kgaa | Acoustic baffle device |
| CN202345572U (en) * | 2011-10-31 | 2012-07-25 | 长城汽车股份有限公司 | Sound insulation rubber plate with leakage noise elimination device |
| CN102582534A (en) * | 2012-02-21 | 2012-07-18 | 奇瑞汽车股份有限公司 | Preformed sound-insulation rubber block and installation method therefor |
| CN102991434A (en) * | 2012-12-18 | 2013-03-27 | 奇瑞汽车股份有限公司 | Swollen rubber block and preparation and installation methods thereof |
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| CN103552518A (en) | 2014-02-05 |
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