CN201045030Y - Vehicle body cavity acoustic baffling block mounted inside car rearwheel casing - Google Patents
Vehicle body cavity acoustic baffling block mounted inside car rearwheel casing Download PDFInfo
- Publication number
- CN201045030Y CN201045030Y CNU2007200688820U CN200720068882U CN201045030Y CN 201045030 Y CN201045030 Y CN 201045030Y CN U2007200688820 U CNU2007200688820 U CN U2007200688820U CN 200720068882 U CN200720068882 U CN 200720068882U CN 201045030 Y CN201045030 Y CN 201045030Y
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- China
- Prior art keywords
- rear wheel
- foaming
- insulation block
- car
- wheel cover
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- Expired - Lifetime
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Abstract
Disclosed is a hollow-cavity sound insulation block of a car body installed inside a rear wheel casing of a car, comprising a heat-resistant hard framework and a foam body, wherein the foam body is capable of foaming and expanding after being heated, the integral framework is in the shape of a board. The framework has a flat shape which is similar to a section of the hollow-cavity of the car body installed inside the rear wheel casing of the car, and a backlash which is left for the foam body to foam and expand is disposed on the periphery opposite to the relative section. The periphery of the hard framework is provided with a groove, the foam body is inlaid in the groove and is provided with the thickness which can completely fill the backlash positioned between the sound insulation block and the car body after foaming and expanding, and one end of the hard framework is equipped with a fixed member for fixedly connecting the car body. The utility model is preset inside the hollow-cavity of the car body of the rear wheel casing and can be tightly combined with a car body board which is placed in the position after foaming and expanding, thereby effectively obstructing the hollow-cavity passage way positioned in the position and achieving the purpose of further ameliorating and improving the vibrating isolation, sound insulation, vibration damping and noise reduction in a cabinet of the car.
Description
Technical field
The utility model relates to a kind of auto parts and components, relates in particular to a kind of bodywork cavity noise insulation block that is installed in the car rear wheel cover.
Background technology
Along with developing of automobile industry, people are more and more higher to the requirement of " safety, traveling comfort, the feature of environmental protection " of car, and the standard-required to " sound insulation, vibration isolation, anticorrosion, noise control " in the car passenger cabin also constantly promotes.The AE personnel have located to do the technology upgrading of sound insulation vibration isolation to enclosure sound heat insulating mattress, car internal sound insulation, vibration isolation carpet, vehicle body sticking glass, car roof etc. before ride-control, the front and back in car at present, make vibration and noise in the car passenger cabin obtain the actv. improvement.But the cavity passage in the body structure also can vibrative noise, and this technical matters is not well solved all the time.
The manufacturing process of vehicle body is, earlier with sheet metal by the die stamping moulding after, form by Automobile Plate metal seam such as inner panel, brace panel and outside plates.Therefore generally in the middle of inner panel and brace panel and outside plate, be bound to form the column structure spare that necessary gap and space, particularly Reinforcement A, B, C, D post and two bottom sides longeron have all formed hollow.The hollow structure of these column pieces and longeron has guaranteed the intensity and the rigidity of body structure effectively, so the cavity state in the body structure is must have.But the cavity of this body structure has also formed the specific channel that transmits ambient noise and vibration.The metal sheet of the ceiling of vehicle body, the isometric form of longeron can form sound because of distortion, the vibration of structure when crossing the road ditch; In the high vehicle speeds motion, can form the sympathetic response sound to vehicle body because of extraneous blast, windage again; The pavement of road sandstone also can on the go to the vehicle body sound that impacts; The resonance frequency that produces in the motion can form the vibration and the sound to vehicle-body outer panel.These noises and vibration all can be transmitted in the cavity between the inside and outside plate of vehicle body fast, thereby noise and transfer of vibration are arrived in the passenger cabin of car, influence driver and conductor's traveling comfort.
Summary of the invention
The purpose of this utility model is exactly in order to solve the problem that above-mentioned prior art exists, and can seal the bodywork cavity noise insulation block in the car rear wheel cover of being installed in that bodywork cavity can improve vibration in the car passenger cabin and noise effectively thereby provide a kind of.
In order to achieve the above object, the utility model has adopted following technical scheme: a kind of bodywork cavity noise insulation block that is installed in the car rear wheel cover, comprise can foaming and intumescing after heat-resisting hard skeleton and the heating foaming body, described skeleton is plate shape on the whole, it have to the car rear wheel cover in the similar aspect in cross section of bodywork cavity, and leave gap for the foaming body foaming and intumescing with respect to the periphery of respective cross-section; Periphery at hard skeleton is provided with groove, and foaming body is inlaid in this groove and has at the thickness that can fill up the gap between noise insulation block and the vehicle body behind the foaming and intumescing, is provided with at an end of hard skeleton to be used for and connecting element that body contact is fixing.
The periphery of described hard skeleton is provided with at least one and is used for contacting continuous with vehicle body and makes it keep good supporting and fixing projective structure with bodywork cavity better.
The described foaming body that is inlaid in the groove is outward extended with a fixture block, and this fixture block is arranged on and the relative end of connecting element on the hard skeleton, and can link to each other with pairing vehicle body position cutting ferrule.
Described connecting element is the buckle-type connecting element.
The thickness of the centre portion of described hard skeleton forms the pit of two symmetries less than the thickness of peripheral groove part in the both sides of hard skeleton.
A side of described hard skeleton is provided with pillar.
In in conjunction with the Automobile manufacturing technological process, rationally reach desirable task program, bodywork cavity noise insulation block of the present utility model is installed in the left back wheel cover or right back wheel cover of car, by the time body in white through pickling, neutralization, purifying, phosphatization, enters in the stoving of the paint stove behind first road paint again and toasts.In stove behind 160～190 ℃ of high temperature and certain hour, foaming body in the noise insulation block is finished the foaming bonding, closely be bonded to one with the inside and outside plate of body in white, can intercept the cavity passage at this place effectively, reach totally-enclosed, thereby original rear wheel cover place is intercepted through vibration source and the noise that bodywork cavity imports into, reach the purpose of further improving the interior vibration isolation of car passenger cabin, sound insulation, vibration damping, noise reduction.Simultaneously, be installed in bodywork cavity noise insulation block in the car rear wheel cover in bodywork cavity, foam bond after, also further reinforced the intensity of vehicle body, body structure and vehicle body crash-protective characteristics have all been played optimization function, made the traveling comfort of car and safety obtain important lifting.
Description of drawings
Fig. 1 is the structural representation that the utility model is installed in the bodywork cavity noise insulation block in the car rear wheel cover;
Fig. 2 is that the B-B of noise insulation block shown in Figure 1 is to cutaway view;
Fig. 3 is that the A-A of noise insulation block shown in Figure 1 is to cutaway view.
The specific embodiment
Referring to Fig. 1, cooperate referring to Fig. 2, Fig. 3, the utility model is installed in the bodywork cavity noise insulation block in the car rear wheel cover, is used for being preset in the bodywork cavity of car rear wheel cover at the manufacturing process of vehicle body.This noise insulation block is an integral slab shape framing member that is constituted by skeleton 1 and foaming body 2.Skeleton 1 is made by heat-resisting high-intensity nylon 6.6, is plate shape on the whole, it have to the car rear wheel cover in the similar aspect in cross section of bodywork cavity, and leave gap for foaming body 2 foaming and intumescings with respect to the periphery of respective cross-section.Periphery at hard skeleton 1 is provided with groove 11, is used for setting-in foaming body 2, and the thickness of the centre portion of hard skeleton 1 forms the big pit 12 (centre portion of Fig. 1) of two symmetries less than the thickness of peripheral groove part in the both sides of hard skeleton.Be provided with at an end of hard skeleton 1 and be used for and connecting element 13 that body contact is fixing, and be provided with at least one in other place of periphery and be used for contact continuous projective structure 14 with vehicle body.This connecting element 13 can be a pair of elastic fastening hook (relevant position at vehicle body is provided with hole clipping) that is symmetricly set on the hard skeleton both sides as shown in Figure 3, also can be that the adaptive connecting bore of other and vehicle body is fixed.The employing of this connecting element 13 makes hard skeleton keep good supporting and fixing with bodywork cavity better.A side at hard skeleton is provided with two pillars 15.Foaming body 2 is inlaid in the groove of hard skeleton 1 periphery, it be enclosed in hard skeleton 1 around and have at the thickness that can fill up the gap between noise insulation block and the vehicle body behind the foaming and intumescing.Foaming body 2 fixture block 21 that can also stretch out, this fixture block 21 be arranged on hard skeleton 1 on be connected and fixed the relative end of part 12, and can link to each other with pairing vehicle body cutting ferrule.In order to make foaming body 2 expansion effect unanimity everywhere, the thickness of fixture block 21 is less than the width and the thickness that are inlaid in the foaming body in hard skeleton 1 peripheral groove, and corresponding to the thickness that is enclosed in the foaming body on the hard skeleton 1 at fixture block 21 places less than the thickness that is enclosed in hard skeleton 1 other foaming body everywhere.
The utility model is installed in the bodywork cavity noise insulation block in the car rear wheel cover, can be installed in the left back wheel cover respectively or in the right back wheel cover.
Claims (6)
1. one kind is installed in the interior bodywork cavity noise insulation block of car rear wheel cover, it is characterized in that: comprise can foaming and intumescing after heat-resisting hard skeleton and the heating foaming body, described skeleton is plate shape on the whole, it have to the car rear wheel cover in the similar aspect in cross section of bodywork cavity, and leave gap for the foaming body foaming and intumescing with respect to the periphery of respective cross-section; Periphery at hard skeleton is provided with groove, and foaming body is inlaid in this groove and has at the thickness that can fill up the gap between noise insulation block and the vehicle body behind the foaming and intumescing, is provided with at an end of hard skeleton to be used for and connecting element that body contact is fixing.
2. the bodywork cavity noise insulation block that is installed in the car rear wheel cover according to claim 1 is characterized in that: the periphery of described hard skeleton is provided with at least one and is used for contacting continuous with vehicle body and makes it keep good supporting and fixing projective structure with bodywork cavity better.
3. the bodywork cavity noise insulation block that is installed in the car rear wheel cover according to claim 1, it is characterized in that: the described foaming body that is inlaid in the groove is outward extended with a fixture block, this fixture block is arranged on and the relative end of connecting element on the hard skeleton, and can link to each other with pairing vehicle body position cutting ferrule.
4. the bodywork cavity noise insulation block that is installed in the car rear wheel cover according to claim 1, it is characterized in that: described connecting element is the buckle-type connecting element.
5. the bodywork cavity noise insulation block that is installed in the car rear wheel cover according to claim 1 is characterized in that: the thickness of the centre portion of described hard skeleton forms the pit of two symmetries less than the thickness of peripheral groove part in the both sides of hard skeleton.
6. the bodywork cavity noise insulation block that is installed in the car rear wheel cover according to claim 1, it is characterized in that: a side of described hard skeleton is provided with pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200688820U CN201045030Y (en) | 2007-04-11 | 2007-04-11 | Vehicle body cavity acoustic baffling block mounted inside car rearwheel casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200688820U CN201045030Y (en) | 2007-04-11 | 2007-04-11 | Vehicle body cavity acoustic baffling block mounted inside car rearwheel casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201045030Y true CN201045030Y (en) | 2008-04-09 |
Family
ID=39308505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200688820U Expired - Lifetime CN201045030Y (en) | 2007-04-11 | 2007-04-11 | Vehicle body cavity acoustic baffling block mounted inside car rearwheel casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201045030Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985915A (en) * | 2017-04-01 | 2017-07-28 | 上汽通用五菱汽车股份有限公司 | A kind of vehicle body compartment seals anti-ponding structure |
-
2007
- 2007-04-11 CN CNU2007200688820U patent/CN201045030Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985915A (en) * | 2017-04-01 | 2017-07-28 | 上汽通用五菱汽车股份有限公司 | A kind of vehicle body compartment seals anti-ponding structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080409 |
|
| CX01 | Expiry of patent term |