CN201045034Y - Vehicle body cavity acoustic baffling block mounted on lower part of car B-column - Google Patents
Vehicle body cavity acoustic baffling block mounted on lower part of car B-column Download PDFInfo
- Publication number
- CN201045034Y CN201045034Y CNU2007200688869U CN200720068886U CN201045034Y CN 201045034 Y CN201045034 Y CN 201045034Y CN U2007200688869 U CNU2007200688869 U CN U2007200688869U CN 200720068886 U CN200720068886 U CN 200720068886U CN 201045034 Y CN201045034 Y CN 201045034Y
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- obtuse angle
- broken line
- angle shape
- obtuse
- car
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- Expired - Lifetime
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- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
Disclosed is a sound isolation block of a car body, which is installed on the lower portion of a B column of a car body. The utility model includes a thermotolerant hard framework and a foaming body capable of foaming and swelling after being heated. The framework comprises an obtuse-angle folded line segment and two flat-plate constructional elements which are connected at the two ends of the folded line segment, wherein the obtuse-angle folded line segment is an interlayer composed of two obtuse-angle lateral boards, flat surfaces of the two flat-plate constructional elements are respectively parallel to one section of lateral board of the two mutually connected obtuse-angle lateral boards and are positioned on the same side of the obtuse-angle folded line segment, and the periphery of the two flat-plate constructional elements are respectively provided with grooves, and the foaming body is embedded in the interlayer of the obtuse-angle folded line segment and in the grooves of the two flat-plate constructional elements. The utility model is prearranged in a hollow cavity of the car body placed on the lower portion of the column. After the utility model foams and swells, the utility model is closely bonded together, and, thereby achieving the purposes of further improving and increasing the vibration isolation, sound isolation, vibration damping and noise reduction of the inner portion of 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 sedan B-post bottom.
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 ride-control, sound-heat insulated cushion, car internal sound insulation, vibration isolation carpet, vehicle body sticking glass, car roof etc. 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 produce the noise with transmitting vibrations, 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 necessary gap and space, be included in zones such as body platform beam, A, B, C, D column, rear wheel cover, ceiling, upper/lower terminal dash shield, ceiling, fender upper end, back and four door-plates and all can form cavity.Particularly Reinforcement A, B, C, D column and two bottom sides longeron have all formed the column structure spare of 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, thereby provides a kind of bodywork cavity that can seal can improve the vibration in the car passenger cabin and the bodywork cavity noise insulation block that is installed in the sedan B-post bottom of noise effectively.
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 sedan B-post bottom, comprise can foaming and intumescing after heat-resisting hard skeleton and the heating foaming body; Described skeleton comprises an obtuse angle shape broken line and is connected two disk construction spares at broken line two ends, obtuse angle shape broken line connects to form interlayer by two obtuse angle shape side plates, the plane of two disk construction spares is parallel with wherein one section side plate of the obtuse angle shape side plate that is connected respectively and be positioned at the same side of obtuse angle shape broken line, is respectively equipped with groove at the periphery of two disk construction spares; Described foaming body is inlaid in the interlayer of obtuse angle shape broken line and in the groove of two disk construction spares; A side of obtuse angle shape broken line be provided be used for vehicle body in the connecting element that is connected and fixed of corresponding component.
Described connecting element is two buckle-type connecting elements, and two buckle-type connecting elements are separately positioned on the same side of two line segments of obtuse angle shape broken line.
The obtuse angle shape broken line of described skeleton is provided with reinforced rib at its place, obtuse angle.
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 bodywork cavity of sedan B-post bottom, 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 is finished the foaming bonding, the car body panel of noise insulation block and B post bottom closely is bonded to one, can intercept the cavity passage at this place effectively, reach totally-enclosed, thereby vibration source and noise that the generation of place, former cause B post bottom is imported into through bodywork cavity intercept, and reach the purpose of further improving the interior vibration isolation of car passenger cabin, sound insulation, vibration damping, noise reduction.Simultaneously, after the bodywork cavity noise insulation block foamed in bodywork cavity and bonds, the intensity of also further having reinforced vehicle body had all played optimization function to body structure and vehicle body crash-protective characteristics, makes the traveling comfort of car and safety obtain important lifting.
Description of drawings
Fig. 1 is the perspective view that the utility model is installed in the bodywork cavity noise insulation block of sedan B-post bottom;
Fig. 2 is the structural representation of facing of the present utility model.
The specific embodiment
Referring to Fig. 1, cooperation is referring to Fig. 2, the utility model is installed in the bodywork cavity noise insulation block of sedan B-post bottom, be used for being preset in the bodywork cavity of sedan B-post bottom at the manufacturing process of vehicle body, comprise skeleton 1 and foaming body 2, integral body has the similar aspect in cross section to the bodywork cavity of sedan B-post bottom, and leaves gap for the foaming body foaming and intumescing with the peripheral car body panel of respective cross-section.Skeleton 1 is made by heat-resisting high-intensity nylon 6.6, can foaming and intumescing after foaming body 2 heating fills up the gap between noise insulation block and the car body panel.
Skeleton 1 in the utility model comprises an obtuse angle shape broken line 11 and is connected two disk construction spares 12,13 at broken line two ends, obtuse angle shape broken line connects to form interlayer by two obtuse angle shape side plates, the plane of two disk construction spares is parallel with wherein one section side plate of the obtuse angle shape side plate that is connected respectively and be positioned at the same side of obtuse angle shape broken line, periphery at two disk construction spares is respectively equipped with groove, a side of obtuse angle shape broken line be provided be used for vehicle body in the connecting element 3 that is connected and fixed of corresponding component.Connecting element in the utility model adopts two buckle-type connecting elements, and two buckle-type connecting elements are separately positioned on the same side of two line segments of obtuse angle shape broken line.Be provided with reinforced rib (not shown come out) at its place, obtuse angle at the obtuse angle of skeleton shape broken line.
Foaming body 2 in the utility model is inlaid in the interlayer of obtuse angle shape broken line and in the groove of two disk construction spares.
The utility model is installed in the bodywork cavity noise insulation block of sedan B-post bottom, is mounted in B post bottom, the left side according to it and also is mounted in B post bottom, the right, and structurally slightly different, the two is symmetrical structure.
Claims (3)
1. bodywork cavity noise insulation block that is installed in the sedan B-post bottom is characterized in that: comprise after heat-resisting hard skeleton and the heating can foaming and intumescing foaming body; Described skeleton comprises an obtuse angle shape broken line and is connected two disk construction spares at broken line two ends, obtuse angle shape broken line connects to form interlayer by two obtuse angle shape side plates, the plane of two disk construction spares is parallel with wherein one section side plate of the obtuse angle shape side plate that is connected respectively and be positioned at the same side of obtuse angle shape broken line, is respectively equipped with groove at the periphery of two disk construction spares; Described foaming body is inlaid in the interlayer of obtuse angle shape broken line and in the groove of two disk construction spares; A side of obtuse angle shape broken line be provided be used for vehicle body in the connecting element that is connected and fixed of corresponding component.
2. the bodywork cavity noise insulation block that is installed in the sedan B-post bottom according to claim 1 is characterized in that: described connecting element is two buckle-type connecting elements, and two buckle-type connecting elements are separately positioned on the same side of two line segments of obtuse angle shape broken line.
3. the bodywork cavity noise insulation block that is installed in the sedan B-post bottom according to claim 1 is characterized in that: the obtuse angle shape broken line of described skeleton is provided with reinforced rib at its place, obtuse angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200688869U CN201045034Y (en) | 2007-04-11 | 2007-04-11 | Vehicle body cavity acoustic baffling block mounted on lower part of car B-column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200688869U CN201045034Y (en) | 2007-04-11 | 2007-04-11 | Vehicle body cavity acoustic baffling block mounted on lower part of car B-column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201045034Y true CN201045034Y (en) | 2008-04-09 |
Family
ID=39308509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200688869U Expired - Lifetime CN201045034Y (en) | 2007-04-11 | 2007-04-11 | Vehicle body cavity acoustic baffling block mounted on lower part of car B-column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201045034Y (en) |
-
2007
- 2007-04-11 CN CNU2007200688869U patent/CN201045034Y/en not_active Expired - Lifetime
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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 |