CN201124803Y - Tunnel type acoustic shield for commercial vehicle power assembly - Google Patents
Tunnel type acoustic shield for commercial vehicle power assembly Download PDFInfo
- Publication number
- CN201124803Y CN201124803Y CNU2007200983658U CN200720098365U CN201124803Y CN 201124803 Y CN201124803 Y CN 201124803Y CN U2007200983658 U CNU2007200983658 U CN U2007200983658U CN 200720098365 U CN200720098365 U CN 200720098365U CN 201124803 Y CN201124803 Y CN 201124803Y
- Authority
- CN
- China
- Prior art keywords
- power assembly
- acoustic enclosure
- sound
- cover
- commercial vehicle
- 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
Images
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The utility model relates to a car tunnel soundproof cover of a commercial vehicle power assembly. The cover is characterized in that the car tunnel soundproof cover is mainly divided into a left part and a right part; the soundproof cover takes the shape of a car tunnel structural member and corresponds to the outline of the power assembly; the soundproof cover comprises a sound-absorbing layer and a sound insulation outer-shell layer which are sequentially lapped from inside to outside. The cover has the beneficial effects that: the sound-absorbing layer composed of petroleum fiber and the sound insulation outer-shell layer composed of sheet steels are adopted to lead the structure to have well sound-absorbing performance and sound insulation performance within a quite wide frequency range, so that the noise of a power assembly system can be effectively absorbed and insulated so as to lead the accelerated vehicle-exterior noise of the whole car to be reduced 1 to 2 decibels. At the same time, the structure of the cover has convenient disassembly, the maintenance and the use of the power assembly are not influenced, and passing height of the whole car are not influenced either.
Description
Technical field
The utility model belongs to automobile, relates in particular to a kind of light card, heavily card and commercial vehicle/comm..vehicle dynamic assembly tunnel type acoustic enclosure such as min-truck of being used for.
Background technology
Driving engine and change speed gear box are the overriding noise sources of automobile, and driving engine and change speed gear box noise account for more than 55% of automobile overall noise.Though adopt totally-enclosed bulk shielding method very effective to the noise that reduces dynamic assembly, because the ventilation cooling difficulty, maintenance is inconvenient, and fire safety and quality, technical matters such as oversize can not be used widely on automobile.Therefore, demand developing the noise reduction acoustic enclosure that a kind of effectively noise reduction can conveniently be installed again in the industry urgently.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of commercial vehicle/comm..vehicle dynamic assembly tunnel type acoustic enclosure with good soundproof effect is provided.
The utility model for achieving the above object, by the following technical solutions: a kind of commercial vehicle/comm..vehicle dynamic assembly tunnel type acoustic enclosure, it is characterized in that: the acoustic enclosure that mainly contains two parts about being divided into, described acoustic enclosure shape is tunnel structure spare and corresponding with the dynamic assembly profile, and described acoustic enclosure is made up of sound absorbing layer and acoustic enclosure layer and is stacked gradually from inside to outside.
Described sound absorbing layer adopts the fibrous sound-absorbing insulation material of oil.
Described acoustic enclosure layer adopts steel plate.
The beneficial effects of the utility model: the pugging that adopts the sound absorbing layer that constitutes by the oil fiber and steel plate to constitute, make this structure in quite wide frequency band, have the good sound absorption performance, can absorb and intercept the noise of power assembly system effectively, make the car load noise emitted by accelerating motor vehicle reduce by 1～2 decibel.Simultaneously, this structure convenient disassembly does not influence the maintenance and the use of dynamic assembly, does not influence the height that passes through of car load yet.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in the figure, a kind of commercial vehicle/comm..vehicle dynamic assembly tunnel type acoustic enclosure, mainly contain the acoustic enclosure 1 of two parts about being divided into, described acoustic enclosure shape is tunnel structure spare and corresponding with the dynamic assembly profile, and described acoustic enclosure is made up of sound absorbing layer 2 and acoustic enclosure layer 3 and is stacked gradually from inside to outside.Described sound absorbing layer adopts the fibrous sound-absorbing insulation material of oil.Described acoustic enclosure layer adopts steel plate.Acoustic enclosure be divided into about two parts, be installed in respectively near the chassis side rail the dynamic assembly.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1, a kind of commercial vehicle/comm..vehicle dynamic assembly tunnel type acoustic enclosure, it is characterized in that: the acoustic enclosure that mainly contains two parts about being divided into, described acoustic enclosure shape is tunnel structure spare and corresponding with the dynamic assembly profile, and described acoustic enclosure is made up of sound absorbing layer and acoustic enclosure layer and is stacked gradually from inside to outside.
2, commercial vehicle/comm..vehicle dynamic assembly tunnel type acoustic enclosure according to claim 1 is characterized in that: described sound absorbing layer adopts the fibrous sound-absorbing insulation material of oil.
3, commercial vehicle/comm..vehicle dynamic assembly tunnel type acoustic enclosure according to claim 1 is characterized in that: described acoustic enclosure layer adopts steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200983658U CN201124803Y (en) | 2007-12-07 | 2007-12-07 | Tunnel type acoustic shield for commercial vehicle power assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200983658U CN201124803Y (en) | 2007-12-07 | 2007-12-07 | Tunnel type acoustic shield for commercial vehicle power assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201124803Y true CN201124803Y (en) | 2008-10-01 |
Family
ID=39998218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200983658U Expired - Fee Related CN201124803Y (en) | 2007-12-07 | 2007-12-07 | Tunnel type acoustic shield for commercial vehicle power assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201124803Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172709A (en) * | 2015-10-30 | 2015-12-23 | 北京新能源汽车股份有限公司 | Vehicular noise reduction assembly, power assembly with the vehicular noise reduction assembly, and electric vehicle with the power assembly |
-
2007
- 2007-12-07 CN CNU2007200983658U patent/CN201124803Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172709A (en) * | 2015-10-30 | 2015-12-23 | 北京新能源汽车股份有限公司 | Vehicular noise reduction assembly, power assembly with the vehicular noise reduction assembly, and electric vehicle with the power assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206111280U (en) | Rearmounted silencer of car | |
| CN103644013A (en) | Automobile muffler | |
| CN104071092A (en) | Layered composite light acoustical material for rail train | |
| CN201124803Y (en) | Tunnel type acoustic shield for commercial vehicle power assembly | |
| CN203962104U (en) | A kind of outlet pipe baffler | |
| CN103386933B (en) | Ventilation and noise reduction structure and electric motor coach | |
| CN203318533U (en) | Vehicle body noise reduction floor structure | |
| CN204751800U (en) | Elevator car sound -insulating structure | |
| CN205168509U (en) | Novel locomotive cab floor device | |
| CN201982158U (en) | Car exhaust muffler | |
| JP2006256398A (en) | Railway vehicle and method of manufacturing noise absorbing material | |
| CN201937384U (en) | Motor sound absorption device of electric motor coach | |
| CN213649495U (en) | Improve sound insulation pad of fire-retardant syllable-dividing effect of car | |
| CN202250383U (en) | Automatic control noise-proof diesel power generating set | |
| CN202896473U (en) | Truck powertrain acoustic shield | |
| CN205131140U (en) | Vehicle subassembly of making an uproar, power assembly that has it and electric vehicle fall | |
| CN202193088U (en) | Sound absorption device for trains | |
| CN202468177U (en) | Sound deadening device of wind turbine tower | |
| CN203020418U (en) | Noise-reduction carriage of engineering rescue vehicle | |
| CN105374349A (en) | Power capacitor noise reduction device based on external composite sound absorption material | |
| CN201034045Y (en) | Cabinet for diesel-electric set | |
| CN221023537U (en) | Engine noise reduction device and vehicle | |
| CN201121371Y (en) | Soundproofing inner wall surface | |
| CN203450052U (en) | Ventilation noise reduction structure and electric motor coach | |
| CN220185262U (en) | Engine oil rail sound-proof housing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20100107 |