CN108725337B - Interior plaque of driver's cabin - Google Patents
Interior plaque of driver's cabin Download PDFInfo
- Publication number
- CN108725337B CN108725337B CN201810504961.4A CN201810504961A CN108725337B CN 108725337 B CN108725337 B CN 108725337B CN 201810504961 A CN201810504961 A CN 201810504961A CN 108725337 B CN108725337 B CN 108725337B
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- China
- Prior art keywords
- sound insulation
- plate
- noise
- cab
- insulation plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
- B60R2013/0287—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners integrating other functions or accessories
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/82—Elements for improving aerodynamics
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention discloses an interior plaque of a cab, square grooves are uniformly formed in a sound insulation plate, backflow holes are formed in the square grooves, and thin pore plates are fixedly arranged on the back of the sound insulation plate, so that noise of various sound sources outside the cab is rationalized and blocked in multiple layers, the interior reverberation of the cab and the vibration low-frequency noise are ensured to be actively absorbed and secondarily absorbed in the indoor environment, in addition, an air conditioner port is arranged in the interior plaque of the cab as a main source of noise, the interior plaque is innovatively designed into a structure integrating diversion and noise reduction, the planning of a noise transmission path of the cab and the energy acceleration attenuation are realized, the noise beside the ears of a driver of the cab of a vehicle is ensured to reach the international standard level, the riding comfort of personnel inside the cab is improved, and the market competitiveness of domestic vehicle products is greatly improved.
Description
Technical Field
The invention belongs to the technical field of automobile member manufacturing, and relates to an interior trim panel of a cab.
Background
Along with the improvement of the living standard of people, the comfort requirements of people on automobiles are also higher and higher, and the interior trim panel is an important factor of the comfort in the automobile cab. The interior trim panel not only needs to have decorative properties, but also has a sound absorbing and insulating effect, so designers begin to look at the structure of the automobile interior trim panel to realize the purpose of sound absorbing and insulating while ensuring the aesthetic properties in the automobile. At present, the noise level beside the ears of automobile drivers in China is generally higher than the foreign standard limit value, so that riding comfort is seriously affected, and the market competitiveness level of domestic vehicles is reduced.
Although domestic automobile enterprises pay attention to the influence of noise in a cab on riding comfort, improvement measures are single, sound absorbing and insulating materials are added to reduce the indoor noise, planning analysis is not carried out on the classification and transmission path of the noise in the cab, and finally the cost of a product is increased, and the effect is not ideal.
In the prior art, a simple hard fiber board is used as an inner decoration board, and a thin sound absorption pad is attached in a cavity between the inner decoration board and a white body plate; under this kind of structure, sound is thrown from the white body panel outside and is got into the cavity, and a part sound energy is directly absorbed by the sound absorption pad, and remaining sound energy is through the sound insulation effect of interior plaque, and a part reflection, another part is through getting into the driver's cabin, and this forms the main measure of prior art to the noise reduction in the driver's cabin.
However, the prior art has the following drawbacks: the noise in the cab is not reduced effectively due to the fact that the noise in the cab is not limited by noise products in the cab and the noise in the cab is ignored, the noise in the cab comprises high-density low-frequency components caused by vibration and reverberation noise, the cost is increased to a certain extent, the cavity resource is not fully utilized, an air conditioner opening is used as a main component on an interior trim panel, the noise in the cab is weak, the noise contribution quantity near the ears of a driver is large, the noise of an air conditioner exhaust opening is absorbed and weakened by no method in the prior art, and the noise near the ears of the driver is high.
Disclosure of Invention
The purpose is as follows: in order to overcome the defects in the prior art, the invention provides an interior trim panel for a cab.
The technical scheme is as follows: in order to solve the technical problems, the invention adopts the following technical scheme:
a cab interior trim panel, characterized in that: the sound insulation device comprises a vehicle body plate, a sound insulation plate, an air conditioner opening and a backflow hole, wherein a detachable sound insulation plate is arranged on the vehicle body plate of a cab, square grooves are uniformly and densely arranged on the sound insulation plate, square strip-shaped grooves are uniformly arranged on one surface, facing the inside of the cab, of the sound insulation plate except the outer parts of the square grooves, a layer of sound absorption adhesive pad is attached to the surface of the sound insulation plate, and thin hole plates are fixedly arranged on the back surface of the sound insulation plate except the outer parts of the square grooves;
air conditioning ports are formed by laminating a middle plate and a plurality of guide plates which are arranged at intervals, the inner end parts of the middle plate and the guide plates are fixedly arranged on a fixed frame plate, curved guide grooves are uniformly arranged on the surface of each guide plate in an annular mode, and noise flow shuttle holes are uniformly arranged between the guide grooves of each guide plate.
As a preferred solution, the interior trim panel for a cab is characterized in that: the sound insulation board is a punching composite fiber board.
Further, the interior plaque of driver's cabin, its characterized in that: the sound insulation board is connected to the vehicle body board through a pin.
As a preferred solution, the interior trim panel for a cab is characterized in that: the thin pore plate is of an arc-shaped curved surface structure, and micro holes are densely and uniformly distributed on the thin pore plate.
As a preferred solution, the interior trim panel for a cab is characterized in that: and two ends of the thin pore plate are clamped at the back surface of the sound insulation plate.
Preferably, the fixing frame plate is in a cross frame structure.
A certain cavity is reserved between the vehicle body plate and the sound insulation plate.
As a preferable scheme, the middle plate is of an inverted conical structure, the guide plates of adjacent layers are arranged in parallel, and an included angle of 40-80 degrees is formed between the guide plates and the fixed frame plate.
The beneficial effects are that: the interior decoration plate of the cab provided by the invention has the advantages that various sound source noises outside the cab are rationalized layer by layer and are subjected to backflow attenuation, the interior reverberation and the vibration low-frequency noise of the cab are ensured to be actively absorbed and secondarily absorbed in the indoor environment, in addition, an air conditioner port is arranged on the interior decoration plate of the cab as a main source of the noise, the interior decoration plate is innovatively designed into a structure integrating diversion and noise reduction, the noise beside the driver's ear of the cab of a vehicle is ensured to reach the international standard level, the riding comfort of personnel inside the cab is improved, and the market competitiveness of domestic vehicle products is greatly improved. Has the following advantages: 1) The interior plaque of the cab adopts a sandwich structure with reasonably arranged perforated plates, sound insulation plates and sound absorption cotton, and external noise flow energy is attenuated layer by layer on a wide frequency band, so that projected noise flow continues to absorb attenuation and reflected (backflow) noise flow secondary attenuation, and the noise from outside to the interior of the cab is effectively ensured to be small enough on the wide frequency band. 2) The interior of the cab is fused by low-frequency vibration noise, reverberation noise and external noise to form an indoor noise flow G6, on one hand, the sound-absorbing adhesive pad and the sound-insulating plate attached to the interior decorative plate are subjected to sound absorption, sound insulation and sound absorption attenuation for a plurality of times, on the other hand, the energy is re-entered into the cavity through the backflow hole and is attenuated by the perforated plate, sound insulation and sound absorption … …, and the noise in the cab is effectively reduced on a low frequency band. 3) The main indoor noise source piece-air conditioning port on the interior plaque of the cab is formed by laminating an annular deflector plate and is matched with a curved diversion trench, so that the air conditioner can exhaust rapidly and smoothly in a short distance, and under the condition of not affecting the exhaust resistance, noise flow shuttle holes are formed in the deflector plate, so that nondirectional noise flow energy is continuously attenuated among the shuttle holes, and the influence of the air conditioning port on the noise in the cab is effectively reduced.
Drawings
FIG. 1 is a cross-sectional view of an interior trim panel structure of the present invention;
FIG. 2 is a side view of the interior trim panel structure of the present invention;
FIG. 3 is a side view of an air conditioning outlet according to the present invention;
FIG. 4 is a cross-sectional view of an air conditioning outlet according to the present invention;
in the figure: 1. an external noise flow G1; 2. cavity noise flow G2; 3. A vehicle body panel; 4. Bao Kongban; 5. A sound insulation board; 6. A sound absorbing adhesive pad; 7. Indoor noise flow G6; 8. bao Kongban noise flow G3; 9. an acoustic isolation flow G4; 10. penetrating noise flow G5; 11. a resonant cavity; 12. an air conditioning port; 12-1, a deflector; 12-2, diversion trenches; 12-3, an intermediate plate; 12-4, fixing the frame plate; 12-5, noise flow shuttle holes; 13. a reflow hole; 14. an exhaust stream; 15. exhaust noise flow.
Detailed Description
The invention will be further described with reference to specific examples.
As shown in fig. 1 to 4, the interior trim panel for a driver's cabin comprises structural components such as a body panel 3, a sound insulation panel 5, an air conditioning port 12, a reflow hole 13 and the like, and is characterized in that: the detachable sound insulation board 5 is fixedly pinned on the cab body board 3, the sound insulation board 5 is a stamping composite fiber board, square grooves are uniformly arranged on the sound insulation board, reflow holes 13 are uniformly and densely arranged on the sound insulation board of the square grooves, square strip-shaped small grooves are uniformly arranged on one surface of the sound insulation board at two sides of the grooves, which faces the inside of the cab, a layer of sound absorption adhesive pad 6 is attached to the surface of the sound insulation board, arc-shaped thin hole boards 4 are fixedly clamped on the back surfaces of the sound insulation boards at two sides of the grooves, air conditioning ports 12 are arranged at foot positions at two sides of the sound insulation board 5,
as shown in fig. 3 and 4, the air conditioning port 12 is mainly formed by stacking guide plates 12-1 and middle plates 12-3 at certain intervals, the inner end parts of the air conditioning port are fixedly arranged on a cross-type fixing frame plate 12-4, curved guide grooves 12-2 are annularly and uniformly distributed on the surface of each layer of guide plates, and noise flow shuttle holes 12-5 are uniformly distributed among the guide grooves of each layer of guide plates 12-1.
The working principle of the invention is as follows: the external noise flow G1 is wide-frequency-band noise, part of energy is weakened through the sound insulation effect of the vehicle body plate 3, then part of energy enters a cavity between the vehicle body plate 3 and the sound insulation plate 5, namely cavity noise flow G2 passes through a thin pore plate, the cavity noise flow G2 shuttles between the arc-shaped micro holes of the thin pore plate 4, the energy is continuously attenuated in the energy transmission process to form the thin pore plate noise flow G3, the thin pore plate noise flow G3 passes through the sound insulation plate 5, due to the sound insulation effect of the sound insulation plate, a relatively large part of noise energy is reflected into the cavity again to carry out secondary circulation attenuation, part of the sound insulation flow G4 which passes through the sound insulation plate is buffered through resonant cavity energy uniformly distributed on the sound insulation plate 5, part of the sound absorption paste pad 6 which is just attached to the sound insulation plate, the rest of the penetrating noise flow G5 enters the inside of a cab, the low-frequency vibration noise and reverberation are fused in the cab, part of the indoor noise flow G6 enters the cavity again through a reflow hole 13, the sound insulation plate is subjected to secondary circulation attenuation, and the sound absorption pad is directly spread on the sound insulation plate, the secondary circulation is further, the sound absorption layer is subjected to the secondary circulation attenuation is reduced, and the sound absorption layer is in the most general, and the sound absorption layer is normally attenuated in the inside the cab; for the air-conditioning exhaust noise in the cab, main exhaust gas passes through gaps among the laminated guide plates 12-1, and is matched with the guide grooves 12-2 uniformly distributed above, so that the exhaust gas flow 14 is discharged along the high speed of the exhaust gas, the exhaust noise flow 15 is nondirectional, and shuttles back and forth in the noise flow shuttle holes on the guide plates, so that the air-conditioning port 12 can ensure the attenuation of the exhaust noise, reduce the exhaust resistance and lead the air flow out rapidly.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (6)
1. A cab interior trim panel, characterized in that: the sound insulation device comprises a vehicle body plate, a sound insulation plate, an air conditioner opening and a backflow hole, wherein a detachable sound insulation plate is arranged on the vehicle body plate of a cab, square grooves are uniformly and densely arranged on the sound insulation plate, square strip-shaped grooves are uniformly arranged on one surface, facing the inside of the cab, of the sound insulation plate except the outer parts of the square grooves, a layer of sound absorption adhesive pad is attached to the surface of the sound insulation plate, and thin hole plates are fixedly arranged on the back surface of the sound insulation plate except the outer parts of the square grooves;
the air conditioning ports are formed by laminating a middle plate and a plurality of layers of guide plates which are arranged at intervals, the inner end parts of the middle plate and the guide plates are fixedly arranged on a fixed frame plate, curved guide grooves are uniformly arranged on the surface of each layer of guide plates in an annular mode, and noise flow shuttle holes are uniformly arranged among the guide grooves of each layer of guide plates; a certain cavity is reserved between the vehicle body plate and the sound insulation plate; the thin pore plate is of an arc-shaped curved surface structure, and micro holes are densely and uniformly distributed on the thin pore plate;
the outside noise flow of wide frequency band weakens partial energy through the sound insulation effect of the vehicle body plate, then get into the cavity between vehicle body plate and the sound insulation plate, form cavity noise flow, cavity noise flow passes through the thin orifice plate, its shuttle is between the miniature hole of thin orifice plate, continuously attenuate in the energy transmission process, form thin orifice plate noise flow, thin orifice plate noise flow passes through the sound insulation plate again, because the sound insulation effect of sound insulation plate, partial noise energy reflects back and gets into the cavity again, carry out the secondary cycle attenuation, the sound insulation flow of transmission sound insulation plate, a part is through the resonant cavity energy buffering of equipartition on the sound insulation plate, a part is absorbed by the sound absorption pad that is attached to the sound insulation plate, inside the rest penetration noise flow gets into the driver's cabin, with the inside low frequency vibration noise of driver's cabin and reverberation fusion, form indoor noise flow, in the indoor noise flow part reentry cavity through the backward flow, carry out the secondary cycle attenuation again, another part is directly absorbed by the sound absorption pad on the sound insulation plate.
2. The cab interior trim panel of claim 1, wherein: the sound insulation board is a punching composite fiber board.
3. The cab interior trim panel of claim 2, wherein: the sound insulation board is connected to the vehicle body board through a pin.
4. The cab interior trim panel of claim 1, wherein: and two ends of the thin pore plate are clamped at the back surface of the sound insulation plate.
5. The cab interior trim panel of claim 1, wherein: the fixed frame plate is of a cross frame type structure.
6. The cab interior trim panel of claim 1, wherein: the middle plate is of an inverted conical structure, the guide plates of adjacent layers are arranged in parallel, and an included angle of 40-80 degrees is formed between the guide plates and the fixed frame plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810504961.4A CN108725337B (en) | 2018-05-24 | 2018-05-24 | Interior plaque of driver's cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810504961.4A CN108725337B (en) | 2018-05-24 | 2018-05-24 | Interior plaque of driver's cabin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108725337A CN108725337A (en) | 2018-11-02 |
| CN108725337B true CN108725337B (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810504961.4A Active CN108725337B (en) | 2018-05-24 | 2018-05-24 | Interior plaque of driver's cabin |
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| Country | Link |
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| CN (1) | CN108725337B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733299A (en) * | 2018-12-10 | 2019-05-10 | 山东国金汽车制造有限公司 | A kind of automobile center console and preparation method thereof with sound absorption |
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|---|---|---|---|---|
| JPH09134180A (en) * | 1995-11-09 | 1997-05-20 | Toyoda Gosei Co Ltd | Sound absorbing material |
| JP2002002408A (en) * | 2000-06-21 | 2002-01-09 | Sanwa Kogyo Kk | Soundproof material for vehicle |
| JP2004168173A (en) * | 2002-11-20 | 2004-06-17 | Toyota Motor Corp | Acoustic absorbing structure and acoustic absorbing and sound insulating structural body |
| JP2005132188A (en) * | 2003-10-29 | 2005-05-26 | Inoac Corp | Vehicle interior member |
| JP2005297274A (en) * | 2004-04-08 | 2005-10-27 | Calsonic Kansei Corp | Method for producing car interior material and method for positioning and fixing surface layer material in car interior material |
| JP2006160177A (en) * | 2004-12-10 | 2006-06-22 | Hayashi Engineering Inc | Sound absorbing structure of automobile running on road |
| JP2008126698A (en) * | 2006-11-16 | 2008-06-05 | Mazda Motor Corp | Noise reducing structure of vehicle roof part |
| DE602006004567D1 (en) * | 2006-05-02 | 2009-02-12 | Rieter Technologies Ag | Motor vehicle cladding element with small spacers |
| JP2010052632A (en) * | 2008-08-29 | 2010-03-11 | Yamaha Corp | Vehicle body structure and instrument panel |
| JP2014100926A (en) * | 2012-11-16 | 2014-06-05 | Toyota Motor Corp | Dash panel transmitted sound reduction structure |
| CN204323242U (en) * | 2014-11-03 | 2015-05-13 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | A kind of power supply compartment air inlet/outlet passage sound arrester |
| JP2015209146A (en) * | 2014-04-28 | 2015-11-24 | 河西工業株式会社 | Vehicle interior trim material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006199276A (en) * | 2004-12-24 | 2006-08-03 | Kobe Steel Ltd | Sound absorbing structure |
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2018
- 2018-05-24 CN CN201810504961.4A patent/CN108725337B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09134180A (en) * | 1995-11-09 | 1997-05-20 | Toyoda Gosei Co Ltd | Sound absorbing material |
| JP2002002408A (en) * | 2000-06-21 | 2002-01-09 | Sanwa Kogyo Kk | Soundproof material for vehicle |
| JP2004168173A (en) * | 2002-11-20 | 2004-06-17 | Toyota Motor Corp | Acoustic absorbing structure and acoustic absorbing and sound insulating structural body |
| JP2005132188A (en) * | 2003-10-29 | 2005-05-26 | Inoac Corp | Vehicle interior member |
| JP2005297274A (en) * | 2004-04-08 | 2005-10-27 | Calsonic Kansei Corp | Method for producing car interior material and method for positioning and fixing surface layer material in car interior material |
| JP2006160177A (en) * | 2004-12-10 | 2006-06-22 | Hayashi Engineering Inc | Sound absorbing structure of automobile running on road |
| DE602006004567D1 (en) * | 2006-05-02 | 2009-02-12 | Rieter Technologies Ag | Motor vehicle cladding element with small spacers |
| JP2008126698A (en) * | 2006-11-16 | 2008-06-05 | Mazda Motor Corp | Noise reducing structure of vehicle roof part |
| JP2010052632A (en) * | 2008-08-29 | 2010-03-11 | Yamaha Corp | Vehicle body structure and instrument panel |
| JP2014100926A (en) * | 2012-11-16 | 2014-06-05 | Toyota Motor Corp | Dash panel transmitted sound reduction structure |
| JP2015209146A (en) * | 2014-04-28 | 2015-11-24 | 河西工業株式会社 | Vehicle interior trim material |
| CN204323242U (en) * | 2014-11-03 | 2015-05-13 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | A kind of power supply compartment air inlet/outlet passage sound arrester |
Non-Patent Citations (1)
| Title |
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| 栗韶毅.DF_(12)型机车司机室噪声控制.内燃机车.2004,(第04期),第14-18+3页. * |
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| CN108725337A (en) | 2018-11-02 |
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Effective date of registration: 20220722 Address after: No.26 tuolanshan Road, Xuzhou Economic and Technological Development Zone, Xuzhou City, Jiangsu Province Applicant after: Jiangsu XCMG Guozhong Laboratory Technology Co.,Ltd. Address before: 221004 26 Jinshan Road, Jinshan Bridge Economic Development Zone, Xuzhou, Jiangsu Applicant before: XCMG CONSTRUCTION MACHINERY Co.,Ltd. |
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