CN205059749U - Automobile engine cabin noise insulation - Google Patents
Automobile engine cabin noise insulation Download PDFInfo
- Publication number
- CN205059749U CN205059749U CN201520747650.2U CN201520747650U CN205059749U CN 205059749 U CN205059749 U CN 205059749U CN 201520747650 U CN201520747650 U CN 201520747650U CN 205059749 U CN205059749 U CN 205059749U
- Authority
- CN
- China
- Prior art keywords
- layer
- panel beating
- panel assembly
- engine hood
- hood panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Body Structure For Vehicles (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Superstructure Of Vehicle (AREA)
Abstract
The utility model relates to an automobile engine cabin noise insulation, including bonnet board assembly, characterized by: bonnet board assembly comprises last panel beating layer, middle damping layer and the triplex overlapping of lower panel beating layer, middle damping layer comprises PE, PVC foaming and pitch complex. Middle damping layer by heating vulcanizes on panel beating layer down, and middle damping layer passes through welded mode and last panel beating layer fixed connection with the assembly on panel beating layer down. The utility model discloses in can effectual suppression engine noise spreading into the car into, improve whole car travelling comfort.
Description
Technical field
The utility model relates to a kind of automobile component, is specifically related to a kind of automobile engine nacelle sound arrester.The utility model relates to auto body system, belongs to auto NVH performances areas application category, is particularly suitable for driving engine and is positioned at midship engine structure below driver's seat, can actv. isolation from the noise of dynamic assembly.On automotive engineering, there is very large value.
Background technology
Along with the development of auto-industry, it is also proposed more and more higher requirement to car comfort, reducing internal car noise is the important composition part improving car load traveling comfort.Internal car noise be mainly derived from motor noise, chassis noise and skin vibration noise, the noise of these noise sources can import in car through air and solid, and may produce cavity resonance phenomenon.Wherein in machinery space, reverberant field is an important external noise source, in machinery space in reverberant field, and the sound wave having driving engine to send, the both firewall sound wave to internal reflection and the sound wave of both firewall vibration radiation.For car inside, if the contribution amount of motor noise to internal car noise can be reduced, will contribute to reducing overall noise in car.Little, that noise the is low driving engine of vibration is selected to be solve the simplest method of internal car noise problem, but the restriction of the prior art of being subject to and cost of development, and it is unpractical for proposing too high requirement to driving engine.And in the structure design of vehicle body, according to the constructional feature of vehicle body, internal car noise spectrum structure and characteristic of spatial distribution and engine frequencies constructional feature, apply sound absorption, sound insulation and damping vibration attenuation technology in the design, realize the control to motor noise, being necessary, is also practicable.CN202811073U disclosed " a kind of automobile engine noise-reduction structure ", it comprises cylinder head installation assembly, high pressure oil rail and induction maniflod, special feature is: it is also provided with sound arrester, described sound arrester is cavernous body, it between induction maniflod and cylinder head assembly, be fixed on the cover of upholstery stud of induction maniflod, its bottom surface is mated with induction maniflod and is fitted.Described sound arrester is respectively equipped with the draw-in groove of fixed track pressure sensor wire harness and heating plug principal wire bundle and the structure of the oily rail oil inlet of parcel, and its bottom surface and induction maniflod are fitted completely.It can effectively reduce driving engine total noise of centrifuge, and improve driving engine NVH performance, sound absorption factor can reach 0.99, and driving engine end face overall noise can reduce by 1.7 decibels, improves car load environment, improves car load traveling comfort.This is a kind of good try beyond doubt.
Summary of the invention
The purpose of this utility model is to provide a kind of automobile engine nacelle sound arrester, and it can suppress motor noise to import in car by actv., improves car load traveling comfort.
A kind of automobile engine nacelle sound arrester described in the utility model, comprises engine hood panel assembly, it is characterized in that: described engine hood panel assembly is partly overlapped by upper panel beating layer, middle damping layer and lower panel beating layer three and forms; Described middle damping layer is made up of PE, PVC foam and pitch compound.
Further, described middle damping layer is by baking on lower panel beating layer, and middle damping layer is fixedly connected with upper panel beating layer by the mode of welding with the fabricate block of lower panel beating layer.
Further, be located by connecting in the top of described engine hood panel assembly a right front buckle, at the rear hinge that has been located by connecting below of described engine hood panel assembly; The upper left quarter of described engine hood panel assembly is fixedly connected with one end of a connection bracket, and a left front buckle is fixedly connected in described connection bracket; Described engine hood panel assembly is fixedly connected with vehicle body by the other end of rear hinge and connection bracket; Sealing band is adopted to seal between the periphery of described engine hood panel assembly 1 and vehicle body and driving engine auxiliary coverplate 7.
Further, described left front buckle, right front buckle are the interface arrangment that can open, and are connected with vehicle body.
The utility model project organization is simple, practical, and processing and fabricating is convenient, with low cost, be particularly suitable for driving engine and be positioned at midship engine structure below driver's seat, can actv. isolation from the noise of dynamic assembly, on automotive engineering, there is very large value.Ensureing under the prerequisite of basic shape and function with conventional engines hatchway cover, the peculiar sound insulating structure actv. of " sandwich " formula can be utilized to block the bang path of engine noise, reduce the contribution amount of Engine Noise to internal car noise largely.
Accompanying drawing explanation
Fig. 1 is appearance schematic diagram of the present utility model;
Fig. 2 is STRUCTURE DECOMPOSITION figure of the present utility model;
Fig. 3 is the schematic diagram that the utility model is connected with adjacent members.
In figure: 1-engine hood panel assembly, the upper panel beating layer of 2-, damping layer in the middle of 3-, panel beating layer under 4-, the left front buckle of 5-, the right front buckle of 6-, 7-driving engine auxiliary coverplate, hinge after 8-, 9-connection bracket.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model will be further described.
See a kind of automobile engine nacelle sound arrester shown in Fig. 1 and Fig. 2, comprise engine hood panel assembly 1, described engine hood panel assembly is partly overlapped by upper panel beating layer 2, middle damping layer 3 and lower panel beating layer 4 three and forms; Described middle damping layer is made up of PE, PVC foam and pitch compound.The described contour structures of owner's cover plate assembly that starts is substantially identical with conventional engine cover plate, can ensure the feasibility that real vehicle is installed.
Described middle damping layer 3 is by baking on lower panel beating layer 4, and middle damping layer is fixedly connected with upper panel beating layer 2 by the mode of welding with the fabricate block of lower panel beating layer, thus forms " sandwich " formula engine hood panel assembly with better soundproof effect.
Be located by connecting in the top of described engine hood panel assembly 1 a right front buckle 6, at the rear hinge 8 that has been located by connecting below of described engine hood panel assembly 1; The upper left quarter of described engine hood panel assembly 1 is fixedly connected with one end of a connection bracket 9, and a left front buckle 5 is fixedly connected in described connection bracket; Described engine hood panel assembly 1 is fixedly connected with vehicle body by the other end of rear hinge 8 and connection bracket 9; Sealing band is adopted to seal between the periphery of described engine hood panel assembly 1 and vehicle body and driving engine auxiliary coverplate 7.This kind of mounting means is easy, is easy to later stage engine maintenance, has good sealing simultaneously.
Described left front buckle 5, right front buckle 6 are the interface arrangment that can open, and are connected with vehicle body.For engine maintenance, repairing provide convenient.
The utility model special feature is: machinery space cover plate assembly make use of " sandwich " formula structure cleverly, adopt two-layered steel plates structure welding as the outside plate of engine hood panel, and increase the damping slab rubber material be made up of composite materials such as PE, PVC foam and pitches at intermediate course.Relative to the engine hood panel of traditional vehicle, at the outside plate be made up of two-layer panel beating to while structural vibration, agitating noise to control effectively, middle damping interlayer relies on the visoelasticity itself had to carry out damping vibration attenuation to structure, partial vibration energy is consumed by friction in the viscosity between rubber molecular chain, weaken the vibration of sheet metal structural, effective restraint speckle transmission.
Claims (4)
1. an automobile engine nacelle sound arrester, comprises engine hood panel assembly (1), it is characterized in that: described engine hood panel assembly is partly overlapped by upper panel beating layer (2), middle damping layer (3) and lower panel beating layer (4) three and forms.
2. a kind of automobile engine nacelle sound arrester according to claim 1, it is characterized in that: described middle damping layer (3) is by baking on lower panel beating layer (4), and middle damping layer is fixedly connected with upper panel beating layer (2) by the mode of welding with the fabricate block of lower panel beating layer.
3. a kind of automobile engine nacelle sound arrester according to claim 1 and 2, it is characterized in that: be located by connecting in the top of described engine hood panel assembly (1) a right front buckle (6), at the rear hinge (8) that has been located by connecting below of described engine hood panel assembly (1); The upper left quarter of described engine hood panel assembly (1) is fixedly connected with one end of a connection bracket (9), and a left front buckle (5) is fixedly connected in described connection bracket; Described engine hood panel assembly (1) is fixedly connected with vehicle body by the other end of rear hinge (8) and connection bracket (9); Sealing band is adopted to seal between the periphery of described engine hood panel assembly (1) and vehicle body and driving engine auxiliary coverplate (7).
4. a kind of automobile engine nacelle sound arrester according to claim 3, is characterized in that: described left front buckle (5), right front buckle (6) are the interface arrangment that can open, and are connected with vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520747650.2U CN205059749U (en) | 2015-09-25 | 2015-09-25 | Automobile engine cabin noise insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520747650.2U CN205059749U (en) | 2015-09-25 | 2015-09-25 | Automobile engine cabin noise insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205059749U true CN205059749U (en) | 2016-03-02 |
Family
ID=55386339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520747650.2U Expired - Fee Related CN205059749U (en) | 2015-09-25 | 2015-09-25 | Automobile engine cabin noise insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205059749U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717291A (en) * | 2019-03-18 | 2020-09-29 | 上汽通用汽车有限公司 | Vehicle engine front cover, manufacturing method thereof and vehicle with same |
| CN115649075A (en) * | 2022-08-30 | 2023-01-31 | 重庆长安汽车股份有限公司 | Cover plate structure suitable for electric automobile power assembly controller |
-
2015
- 2015-09-25 CN CN201520747650.2U patent/CN205059749U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717291A (en) * | 2019-03-18 | 2020-09-29 | 上汽通用汽车有限公司 | Vehicle engine front cover, manufacturing method thereof and vehicle with same |
| CN115649075A (en) * | 2022-08-30 | 2023-01-31 | 重庆长安汽车股份有限公司 | Cover plate structure suitable for electric automobile power assembly controller |
| CN115649075B (en) * | 2022-08-30 | 2024-06-04 | 重庆长安汽车股份有限公司 | Cover plate structure suitable for electric automobile power assembly controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205059749U (en) | Automobile engine cabin noise insulation | |
| CN202345786U (en) | Reinforced automobile wheel cover | |
| CN203391602U (en) | Automobile roof and automobile | |
| CN214001550U (en) | Automobile engine aerogel heat insulating mattress with sound insulation and noise reduction functions | |
| CN103590896B (en) | A kind of portable diesel generator with low noise group equipment | |
| CN203819313U (en) | Automobile steering column sealing structure | |
| CN201021214Y (en) | Vehicle body cavity vibration-separated mat installed in car back wheel cover | |
| JP6265250B1 (en) | Front subframe structure | |
| CN202811073U (en) | Automobile engine noise reduction structure | |
| CN201752942U (en) | Automobile heat insulating and noise reducing device | |
| CN208868149U (en) | A kind of new type passenger car bonnet sealing structure | |
| CN203005309U (en) | Noise insulation device for front wall of engine compartment | |
| CN203114424U (en) | Vehicle engine firewall with sound and heat insulating performance | |
| CN201042946Y (en) | Car body cavity vibration isolator equipped at middle and upper part of A pole of car | |
| CN215851487U (en) | Automobile front wall plate assembly and automobile | |
| CN211449473U (en) | Shock absorber, damping cab and diesel locomotive | |
| CN202863575U (en) | Sealing structure for vehicle front fender | |
| CN111994103B (en) | Full-floating building carriage structure and railway vehicle | |
| CN210083111U (en) | Engine sound absorption device for commercial vehicle | |
| CN203637729U (en) | Vibration reducing and sound absorbing pad for automotive bumper | |
| CN206582018U (en) | A kind of mobile muffler heat shield and automobile | |
| CN217994339U (en) | Engine sound and heat insulation device for heavy-duty car | |
| Kitahara et al. | Study on effective application of soundproofing materials through low noise prototype car development | |
| CN102275549A (en) | Sound insulation pad for rear hub wrap of car | |
| CN209671108U (en) | It is a kind of for the muffler on air pulse pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20210925 |