CN101177131B - Sound-insulation endergonic front warehouse structure and manufacturing method thereof - Google Patents
Sound-insulation endergonic front warehouse structure and manufacturing method thereof Download PDFInfo
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- CN101177131B CN101177131B CN2007101512134A CN200710151213A CN101177131B CN 101177131 B CN101177131 B CN 101177131B CN 2007101512134 A CN2007101512134 A CN 2007101512134A CN 200710151213 A CN200710151213 A CN 200710151213A CN 101177131 B CN101177131 B CN 101177131B
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- front apron
- sound
- brace panel
- chamber structure
- thermal insulation
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- 238000009413 insulation Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000012774 insulation material Substances 0.000 claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 11
- 238000013016 damping Methods 0.000 claims abstract description 10
- 239000010426 asphalt Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 4
- 238000010009 beating Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention provides a front chamber structure of sound insulation and energy absorption and the manufacturing method, comprising a front baffle, a reinforcing plate and a plurality of sound insulation and thermal insulation materials between the front baffle and the reinforcing plate. The invention is characterized in that the front baffle and the reinforcing plate are welded into a whole through spot welding; the outer layer of the front baffle is coated with the sound insulation and thermal insulation materials, and the outer flank of the reinforcing plate is covered with anti-damping materials, such as asphalt panel and other materials. The invention has an advantage that the noise in the cab of an automobile can be reduced by effectively insulating and absorbing the high and low frequency noises caused by the automobile engine and other parts.
Description
Technical field
The present invention relates to a kind of preceding storehouse sound-insulation endergonic structure of vehicle body.
Background technology
Raising along with the resident living level, automobile is also in gradually the life that incorporates the people, become very important component part in the people's lives, people have also proposed more and more higher requirement not only to the function of automobile, proposition higher requirement attractive in appearance to the riding traveling comfort of automobile and the enjoyment of driving.In the riding comfort factor of influence, drive room noise is an important factors always.It is to influence car comfort, speech articulation, sense of hearing degree of damage, travel safety and the people key factor to various sound equipment signal discernibilitys outside the car in car.Therefore noise also more and more is subjected to people's attention in the car.Most of cars all adopt F/F, its work noise has the greatest impact to internal car noise, it mainly imports in the car by front apron, the cabin design is all adopted and is sprayed various sound insulation on the individual layer front apron before the present great majority, sound-absorbing material insulates against sound, but actual effect is unsatisfactory, the occupant still is easy to feel the rumble that is passed over by front by driving engine in operator's compartment, and the part heat that driving engine distributes also distributes in car from here.
Summary of the invention
The front chamber structure that the purpose of this invention is to provide a kind of sound-insulation endergonic, thus the indoor noise of vehicle drive reduced.
Technical scheme provided by the invention is: a kind of front chamber structure of heat insulation energy-absorbing, comprise front apron and brace panel, and the two becomes an integral body by spot-welded on, and the sound absorption thermal insulation material is arranged in the middle of described front apron and brace panel.Superficies at front apron are coated with the acoustical and thermal material, in the outer side covers of brace panel anti-damping materials such as asphalt plank are arranged.
The present invention also provides the manufacture method of above-mentioned front chamber structure, specifically: add the sound absorption thermal insulation material on described front apron; Described front apron is become an integral body with brace panel by spot-welded on, thereby described sound absorption thermal insulation material is positioned in the middle of described front apron and the brace panel.Be coated with the acoustical and thermal material at described single-piece superficies then, cover anti-damping material at described single-piece inner surface and constitute a complete multiple-structure.
Description of drawings
Fig. 1: the front chamber structure sectional schematic diagram of sound insulation energy-absorbing;
Fig. 2: the local enlarged diagram of the front chamber structure section of sound insulation energy-absorbing.
Be labeled as among the figure:
1, sound source; 2, acoustical and thermal material; 3, front apron; 4, sound absorption thermal insulation material;
5, brace panel; 6, anti-damping material; 7, front chamber structure.
The specific embodiment
Front chamber structure 7 shown in Figure 1, realize in the following manner: on front apron 3, add earlier sound absorption thermal insulation material 4, become an integral body with brace panel 5 by spot-welded on again, be coated with acoustical and thermal material 2 on this whole internal layer surface again, on operator's compartment one side panel beating, cover anti-damping materials 6 such as asphalt plank, constitute a complete multiple-structure.
Two-layer panel beating plate will improve the rigidity and the intrinsic vibration frequency of front apron part by welding, avoid coincideing with excitation frequency, and the resonance that produces, thereby avoid in the internal car noise low-frequency noise (rumble) of the most difficult elimination.And because the raising of rigidity, with reduce front apron in collision process after invade degree, improve occupant safety.Send sound wave and propagate in car by air when sound source 1 (driving engine and other movable parts) work, at first by acoustical and thermal material 2, acoustical and thermal material 2 will carry out transmission loss to sound; After the transmission loss of sound wave process ground floor sound deadener, will pass front apron 3, sound absorption thermal insulation material 4 and brace panel 5; By the mass law TL ≈ 20logmf-47.5 (quality of m-next door unit area; The f-acoustic frequency) as can be known, next door density is big more, and defening effect is good more.
This double-deck sheet metal structural can be to the effect of effectively insulating against sound of high frequency sound, and the sound absorption thermal insulation material 4 between the two-layer panel beating utilizes the inside fubril vibration of material itself, with acoustic energy be converted into heat energy centering, high frequency sound carries out the actv. absorbing treatment.Anti-damping materials 6 such as asphalt plank in the operator's compartment will carry out attenuation processing to passing the remaining acoustic energy of aforementioned structure, reduce the low frequency noise in the sound.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (4)
1. the front chamber structure of a heat insulation energy-absorbing (7), comprise front apron (3) and brace panel (5), the two becomes an integral body by spot-welded on, sound absorption thermal insulation material (4) is arranged in the middle of described front apron (3) and brace panel (5), superficies at described front apron are coated with acoustical and thermal material (2), in the outer side covers of described brace panel anti-damping material (6) are arranged.
2. the front chamber structure of heat insulation energy-absorbing according to claim 1, it is characterized in that: described anti-damping material (6) is an asphalt plank.
3. the manufacture method of the front chamber structure of a heat insulation energy-absorbing, described front chamber structure comprises front apron (3) and brace panel (5), comprises the steps:
Go up adding sound absorption thermal insulation material (4) at described front apron (3);
Described front apron (3) is become an integral body with brace panel (5) by spot-welded on, thereby it is middle with brace panel (5) to make described sound absorption thermal insulation material (4) be positioned at described front apron (3);
Be coated with acoustical and thermal material (2) at described single-piece superficies, cover anti-damping material (6) at described single-piece inner surface and constitute a complete multiple-structure.
4. manufacture method according to claim 3 is characterized in that, described anti-damping material (6) is an asphalt plank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101512134A CN101177131B (en) | 2007-09-14 | 2007-09-14 | Sound-insulation endergonic front warehouse structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101512134A CN101177131B (en) | 2007-09-14 | 2007-09-14 | Sound-insulation endergonic front warehouse structure and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101177131A CN101177131A (en) | 2008-05-14 |
| CN101177131B true CN101177131B (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101512134A Active CN101177131B (en) | 2007-09-14 | 2007-09-14 | Sound-insulation endergonic front warehouse structure and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101177131B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5820223B2 (en) * | 2011-10-06 | 2015-11-24 | 豊和繊維工業株式会社 | Soundproof sheet for automobile, method for producing the same, and dash silencer for automobile using the soundproof sheet |
| DE102012014810A1 (en) * | 2012-07-26 | 2014-01-30 | Volkswagen Aktiengesellschaft | Ultrasonic sensor device |
| CN107235017A (en) * | 2017-06-16 | 2017-10-10 | 奇瑞汽车股份有限公司 | A kind of auto sound structure and its manufacture method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4083595A (en) * | 1975-06-12 | 1978-04-11 | Daimler-Benz Aktiengesellschaft | Multi-layer sound- and vibration-absorbing cover panels for body parts and method for applying same |
| EP0636517A1 (en) * | 1993-07-27 | 1995-02-01 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a double wall car body part with an insulating layer |
| DE10160442A1 (en) * | 2001-02-08 | 2002-08-29 | Quadrant Plastic Composites Ag | Lining of an automobile roof comprises two layers which are welded to one another only at certain places so that air cushions covered by dome-like regions of the upper layer are formed |
| CN2617633Y (en) * | 2003-04-14 | 2004-05-26 | 上海申沃客车有限公司 | Sound-absorbing and thermal insulative structure for rear engine cabin roof of bus |
| CN2875885Y (en) * | 2006-01-25 | 2007-03-07 | 重庆长安汽车股份有限公司 | Automobile front wall board structure having noise reduction heat insulation action |
-
2007
- 2007-09-14 CN CN2007101512134A patent/CN101177131B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4083595A (en) * | 1975-06-12 | 1978-04-11 | Daimler-Benz Aktiengesellschaft | Multi-layer sound- and vibration-absorbing cover panels for body parts and method for applying same |
| EP0636517A1 (en) * | 1993-07-27 | 1995-02-01 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a double wall car body part with an insulating layer |
| DE10160442A1 (en) * | 2001-02-08 | 2002-08-29 | Quadrant Plastic Composites Ag | Lining of an automobile roof comprises two layers which are welded to one another only at certain places so that air cushions covered by dome-like regions of the upper layer are formed |
| CN2617633Y (en) * | 2003-04-14 | 2004-05-26 | 上海申沃客车有限公司 | Sound-absorbing and thermal insulative structure for rear engine cabin roof of bus |
| CN2875885Y (en) * | 2006-01-25 | 2007-03-07 | 重庆长安汽车股份有限公司 | Automobile front wall board structure having noise reduction heat insulation action |
Non-Patent Citations (3)
| Title |
|---|
| JP昭58-22765A 1983.02.10 |
| JP昭62-187634A 1987.08.17 |
| 同上. |
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|---|---|
| CN101177131A (en) | 2008-05-14 |
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