CN109733299A - A kind of automobile center console and preparation method thereof with sound absorption - Google Patents
A kind of automobile center console and preparation method thereof with sound absorption Download PDFInfo
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- CN109733299A CN109733299A CN201811506701.7A CN201811506701A CN109733299A CN 109733299 A CN109733299 A CN 109733299A CN 201811506701 A CN201811506701 A CN 201811506701A CN 109733299 A CN109733299 A CN 109733299A
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- rack
- sound absorption
- perforated plate
- center console
- automobile center
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 238000013461 design Methods 0.000 claims abstract description 11
- 238000004080 punching Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011358 absorbing material Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000011160 research Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Vehicle Step Arrangements And Article Storage (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The present invention discloses a kind of automobile center console and preparation method thereof with sound absorption, including rack, the rack two sides are provided with side plate, top plate is provided between two side plates, the top plate side is provided with baffle, the baffle side is provided with gear lever slot, gear lever slot two sides are provided with the first key slot, first key slot side is provided with the second key slot, second key slot side is provided with preceding door, the rack two sides are provided with perforated plate, cushion is provided with above the rack, the rack side is provided with tail-hood, there are two gas outlets for setting on the tail-hood, adjusting mouth is provided between two gas outlets, rear door is provided with below the adjusting mouth；This kind has automobile center console of sound absorption and preparation method thereof design rationally, and effect of low-frequency sound absorption in raising improves in-vehicle sound quality, while reducing sound-absorbing material use, reduces automobile research cost, reduces complete vehicle weight and improves course continuation mileage.
Description
Technical field
The present invention relates to sound absorption structure technical field, specifically a kind of automobile center console and its production with sound absorption
Method.
Background technique
When high vehicle speeds, various dynamic noises can be generated, it is vehicle when running at high speed that wherein tire, which is made an uproar, wheel
Caused by tire and road surface friction, determine that tire is made an uproar size depending on road and vehicle conditions, the poorer tire of road conditions make an uproar it is bigger, in addition asphalt surface and
Tire caused by mixed mud road surface is hot-tempered have very big difference (mainly pass through: four car doors, boot, front fender, front-wheel arc generate and
Transmitting), car noise substantially derives from engine noise, exhaust noise, fan, transmission system, braking system, tire and wind and makes an uproar
Deng, and by posteriori repacking, most noise can effectively lower, and pure electric automobile is in high-performance cruise operating condition lower whorl
Tire noise, the wind high-frequency noise of generations such as make an uproar seriously affect in-vehicle sound quality, and wind is cut when road noise is high vehicle speeds
It forms noise and traveling drives chassis vibration to generate, there are also road Stone Shock chassis can also generate noise, this is road noise
Main source (mainly pass through: four car doors, boot, front fender, front-wheel arc generate and transmitting).Sound absorption be control noise and
Improve the important measures of in-vehicle sound quality, sound-absorbing material has sound-absorbing porous material and resonance sound-absorbing material two major classes.
Sound-absorbing porous material acoustic absorptivity is high, acoustic frequency bandwidth, but generally absorbs sound in the high-frequency range of 1000Hz or more
Coefficient is higher, and effect of low-frequency sound absorption is poor.In the automobile noise control technology, to improve sound absorption effect often largely using sound absorption material
Material, runs in the opposite direction with lightweight.
Resonance sound-absorbing structure is made using resonance sound-absorbing principle, sound effectively can be become thermal energy consumption, is gathered around in middle low frequency
There is good sound absorption ability.Perforation board resonance sound absorption structure is the sound absorber being widely used in noise control.Console is interior trim
Pith, generally plastic material can be designed as sound absorption structure.Console design is improved, not significantly
Increase and effectively improves in-vehicle sound quality level under the premise of designing and producing cost.
Summary of the invention
The present invention provides a kind of automobile center console and preparation method thereof with sound absorption, and low frequency absorption is imitated in raising
Fruit improves in-vehicle sound quality, while reducing sound-absorbing material use, reduces automobile research cost, reduces complete vehicle weight and improves continuation of the journey
Mileage.
To achieve the above object, the present invention provides the following technical solutions:
A kind of automobile center console and preparation method thereof with sound absorption of the present invention, including rack, the rack two sides
It is provided with side plate, top plate is provided between two side plates, the top plate side is provided with baffle, the baffle side setting
There is gear lever slot, gear lever slot two sides are provided with the first key slot, and first key slot side is provided with the second key
Slot, second key slot side are provided with preceding door, and the rack two sides are provided with perforated plate, are provided with above the rack
Cushion, the rack side are provided with tail-hood, gas outlet there are two settings on the tail-hood, are arranged between two gas outlets
There is adjusting mouth, is provided with rear door below the adjusting mouth.
As a preferred technical solution of the present invention, side plate mounting hole is provided on the side plate.
As a preferred technical solution of the present invention, the side plate is fixed on rack by screw and nut.
As a preferred technical solution of the present invention, the preceding door is connect with the rack by shaft.
As a preferred technical solution of the present invention, the rear door is connect with the tail-hood by shaft.
As a preferred technical solution of the present invention, two pieces of perforation faces, perforated plate installation are provided on the perforated plate
Perforation face on hole is in 6*15 square arrangement, totally 90 circular holes, is in 5*5 square arrangement by the perforation face of proximal panel, and totally 25
A circular hole.
As a preferred technical solution of the present invention, the perforated plate is fixed on rack side by screw and nut.
The present invention also provides the production methods of the above-mentioned automobile center console with sound absorption, comprising the following steps:
A. the design of punch format: the punching rate of perforated plate is the important parameter for describing perforated plate acoustic characteristic, in
Platform local geometric features and appearance requirement are controlled, corresponding punch format is selected.The present invention selects the square arrangement mode of circular hole 11
Perforated plate 10.Note 11 diameter of circular hole is d, and 11 centers of circular hole for B, punching rate σ by following formula away from being calculated.
B. perforated plate resonant frequency frDetermination.It is required according to eliminating the noise, sets different 10 structures of perforated plate, and make
Each resonant frequency interconnects, and all has required acoustical absorptivity in entire frequency range.
C in formula0It is 340m/s for sound propagation velocity in air；σ is the punching rate of perforated plate 10, can be true according to step 1
It is fixed；D is cavity depth；L is the effective length of perforated plate 10.
Wherein:
B in formula0For the thickness of perforated plate 10；D is 11 diameter of circular hole.
C. the acoustic absorptivity a of perforation board resonance sound absorption structurerIt is determined with frequency bandwidth Ω.
In formula, r is opposite specific acoustic resistance, and reasonable value range is 1.5~2 or so；arFor resonance sound-absorbing coefficient；λrIt is total
Shake Shi Bochang；Q is quality factor；Ω1For upper half bandwidth.
The beneficial effects obtained by the present invention are as follows being: the present invention increases perforated plate structure in console space, in garage
When sailing, engine is made an uproar, road noise, and tire, which is made an uproar, belongs to structureborne noise, its main generation be vibration, do not dramatically increase console at
Interior noise is effectively reduced under the premise of this, and reduces the use of sound-absorbing material, totally alleviates complete vehicle weight, is reduced
Cost.Perforated plate structure is introduced in Trimming Design for Motor Vehicle, effect of low-frequency sound absorption in raising improves in-vehicle sound quality.In existing
Controlling platform design, there are much rooms not to be utilized, and perforation board resonance sound absorption structure can apply the remaining space of console,
Extra cost is not added while reaching sound absorption effect, nor affects on the appearance of vehicle.It reduces sound-absorbing material to use, reduces vehicle
Development cost reduces complete vehicle weight and improves course continuation mileage.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is circular hole pros arrangement mode perforated plate structural schematic diagram of the present invention；
Fig. 2 is perforation board resonance sound absorption structure schematic diagram of the present invention；
Fig. 3 is console punch position schematic diagram of the present invention；
Fig. 4 is the console schematic diagram that the present invention has noise elimination structure；
In figure: 1, tail-hood；2, side plate；3, gear lever slot；4, baffle；5, top plate；6, gas outlet；7；Door afterwards；8, it adjusts
Mouthful；9, perforated plate mounting hole；10, perforated plate；11, circular hole；12, preceding door；13, the first key slot；14, the second key slot；15,
Cushion；16, side plate mounting hole；17, rack；18, rigid plane.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment: as shown in Figs 1-4, including rack 17,17 two sides of rack are provided with side plate 2, two side plates 2
Between be provided with top plate 5,5 side of top plate is provided with baffle 4, and 4 side of baffle is provided with gear lever slot 3, the change
Fast 3 two sides of bar slot are provided with the first key slot 13, and 13 side of the first key slot is provided with the second key slot 14, and described second
14 side of key slot is provided with preceding door 12, and 17 two sides of rack are provided with perforated plate 10, are provided with above the rack 17
Cushion 15,17 side of rack are provided with tail-hood 1, and there are two gas outlet 6, two gas outlets 6 for setting on the tail-hood 1
Between be provided with and adjust mouth 8, be provided with rear door 7 below the adjusting mouth 8.
In order to keep this kind easy to use with the automobile center console of sound absorption and preparation method thereof, set on the side plate 2
It is equipped with side plate mounting hole 16, the side plate 2 is fixed on rack 17 by screw and nut, the preceding door 12 and the rack 17
It is connected by shaft, the rear door 7 is connect with the tail-hood 1 by shaft, and two pieces of perforation are provided on the perforated plate 10
Face, the perforation face on perforated plate mounting hole 9 are in 6*15 square arrangement, totally 90 circular holes 11, are in 5* by the perforation face of proximal panel 2
5 square arrangements, totally 25 circular holes 11, the perforated plate 10 are fixed on 17 side of rack by screw and nut.
Structure of the invention design rationally, on the basis of console, designs 10 resonance sound-absorbing structure of perforated plate, absorbs 600Hz
The noise of frequencies above range.
To realize the above technical assignment, the present invention is realized using following steps.
A. the design of punch format: the punching rate of perforated plate is the important parameter for describing perforated plate acoustic characteristic, in
Platform local geometric features and appearance requirement are controlled, corresponding punch format is selected.The present invention selects the square arrangement mode of circular hole 11
Perforated plate 10, as shown in Figure 1.Note 11 diameter of circular hole is d, and 11 centers of circular hole for B, punching rate σ by following formula away from being calculated.
B. perforated plate resonant frequency frDetermination.It is required according to eliminating the noise, sets different 10 structures of perforated plate, and make
Each resonant frequency interconnects, and all has required acoustical absorptivity in entire frequency range.
C in formula0It is 340m/s for sound propagation velocity in air；σ is the punching rate of perforated plate 10, can be true according to step 1
It is fixed；D is cavity depth；L is the effective length of perforated plate 10.
Wherein:
B in formula0For the thickness of perforated plate 10；D is 11 diameter of circular hole.
C. the acoustic absorptivity a of perforation board resonance sound absorption structurerIt is determined with frequency bandwidth Ω.
In formula, r is opposite specific acoustic resistance, and reasonable value range is 1.5~2 or so；arFor resonance sound-absorbing coefficient；λrIt is total
Shake Shi Bochang；Q is quality factor；Ω1For upper half bandwidth.
The present invention increases perforated plate structure in console space, and in running car, engine is made an uproar, and road noise, tire is made an uproar all
Belong to structureborne noise, its main generation is vibration, effectively reduces car under the premise of not dramatically increasing console cost
Noise, and reduce the use of sound-absorbing material, totally alleviate complete vehicle weight, reduce cost.Draw in Trimming Design for Motor Vehicle
Enter perforated plate structure, effect of low-frequency sound absorption in raising improves in-vehicle sound quality.There are much rooms not to have for existing console design
It is utilized, perforation board resonance sound absorption structure can apply the remaining space of console, not add while reaching sound absorption effect
Extra cost nor affects on the appearance of vehicle.It reduces sound-absorbing material to use, reduces automobile research cost, reduce complete vehicle weight and mention
High course continuation mileage.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of automobile center console with sound absorption, including rack (17), which is characterized in that rack (17) two sides are set
It is equipped with side plate (2), is provided with top plate (5) between two side plates (2), top plate (5) side is provided with baffle (4), institute
Baffle (4) side to be stated to be provided with gear lever slot (3), gear lever slot (3) two sides are provided with the first key slot (13), and described
One key slot (13) side is provided with the second key slot (14), and the second key slot (14) side is provided with preceding door (12),
Rack (17) two sides are provided with perforated plate (10), are provided with cushion (15) above the rack (17), the rack (17)
Side is provided with tail-hood (1), on the tail-hood (1) there are two settings gas outlet (6), is arranged between two gas outlets (6)
Have adjusting mouth (8), is provided with rear door (7) below the adjusting mouth (8).
2. a kind of automobile center console with sound absorption according to claim 1, which is characterized in that the side plate (2)
On be provided with side plate mounting hole (16).
3. a kind of automobile center console with sound absorption according to claim 1, which is characterized in that the side plate (2)
It is fixed on rack (17) by screw and nut.
4. a kind of automobile center console with sound absorption according to claim 1, which is characterized in that the preceding door
(12) it is connect with the rack (17) by shaft.
5. a kind of automobile center console with sound absorption according to claim 1, which is characterized in that door after described
(7) it is connect with the tail-hood (1) by shaft.
6. a kind of automobile center console with sound absorption according to claim 1, which is characterized in that the perforated plate
(10) two pieces of perforation faces are provided on, the perforation face on perforated plate mounting hole (9) is in 6*15 square arrangement, totally 90 circular holes
(11), the perforation face by proximal panel (2) is in 5*5 square arrangement, totally 25 circular holes (11).
7. a kind of automobile center console with sound absorption according to claim 1, which is characterized in that the perforated plate
(10) rack (17) side is fixed on by screw and nut.
8. the production method of -7 any a kind of automobile center consoles with sound absorption according to claim 1, feature
It is, comprising the following steps:
A. the design of punch format: the punching rate of perforated plate is the important parameter for describing perforated plate acoustic characteristic, according to console
Local geometric features and appearance requirement select corresponding punch format.The present invention selects the perforation of the square arrangement mode of circular hole 11
Plate 10.Note 11 diameter of circular hole is d, and 11 centers of circular hole for B, punching rate σ by following formula away from being calculated.
B. perforated plate resonant frequency frDetermination.It is required according to eliminating the noise, sets different 10 structures of perforated plate, and make each total
Vibration frequency interconnects, and all has required acoustical absorptivity in entire frequency range.
C in formula0It is 340m/s for sound propagation velocity in air；σ is the punching rate of perforated plate 10, be can determine according to step 1；D
For cavity depth；L is the effective length of perforated plate 10.
Wherein:
B in formula0For the thickness of perforated plate 10；D is 11 diameter of circular hole.
C. the acoustic absorptivity a of perforation board resonance sound absorption structurerIt is determined with frequency bandwidth Ω.
In formula, r is opposite specific acoustic resistance, and reasonable value range is 1.5~2 or so；arFor resonance sound-absorbing coefficient；λrWhen to resonate
Wavelength；Q is quality factor；Ω1For upper half bandwidth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506701.7A CN109733299A (en) | 2018-12-10 | 2018-12-10 | A kind of automobile center console and preparation method thereof with sound absorption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506701.7A CN109733299A (en) | 2018-12-10 | 2018-12-10 | A kind of automobile center console and preparation method thereof with sound absorption |
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| Publication Number | Publication Date |
|---|---|
| CN109733299A true CN109733299A (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811506701.7A Pending CN109733299A (en) | 2018-12-10 | 2018-12-10 | A kind of automobile center console and preparation method thereof with sound absorption |
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Application publication date: 20190510 |