CN202863316U - Sound absorption device arranged on seat - Google Patents
Sound absorption device arranged on seat Download PDFInfo
- Publication number
- CN202863316U CN202863316U CN201220457993.1U CN201220457993U CN202863316U CN 202863316 U CN202863316 U CN 202863316U CN 201220457993 U CN201220457993 U CN 201220457993U CN 202863316 U CN202863316 U CN 202863316U
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- CN
- China
- Prior art keywords
- sound absorption
- resonant cavity
- seat
- microperforated panel
- sound
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- 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 - Lifetime
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- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The utility model provides a sound absorption device arranged on a seat. The sound absorption device arranged on the seat comprises a sound absorption resonant cavity and a micropunch plate. The sound absorption resonant cavity is arranged on the back portion of a car seat, one face of the sound absorption resonant cavity is opened, the micropunch plate is arranged on a cavity opening of the sound absorption resonant cavity, one face of the micropunch plate is provided with sound absorption slices and the face of the micropunch plate faces to the sound absorption resonant cavity. The sound absorption device arranged on the seat is capable of further reducing noise level in a car cockpit on the basis of effects produced by noise reduction measures of the existing car, and being hidden in structure and low in influence on car interiors.
Description
Technical field
The utility model relates to a kind of noise lowering device for automobile, and more particularly, it relates to a kind of arrangement sound absorber on the seat.
Background technology
Along with people to improving constantly that vehicle ride comfort requires, each car enterprise is all making great efforts to improve interior design of car in the hope of obtaining better noise reduction.Noise reduction measure commonly used has: packing matcrial, the interior material that the use soundproof effect is good, isolated sealing high noisy parts etc. in slit or aperture; these measures mainly are to reach noise reduction by the mode of cutting off the noise transmission approach; even but like this; noise also often is difficult to be controlled on the desirable level, therefore usually also can further eliminate noise by the vibration damping sound arrester is set.Publication number is that the invention of CN1873192A discloses a kind of automotive muffler on December 6th, 2006, is comprised of cylindrical shell, three dividing plates, air inlet pipe, freeing pipe and forward and backward end caps.Dividing plate is separated into four chambers with cylindrical shell, air inlet pipe puts in from cylindrical shell one end, end to the 3rd chamber through first, second, freeing pipe then passes second and third, picks out behind four chambers since the first chamber, on air inlet pipe, the freeing pipe and all have the micropore of some on the dividing plate, make first, second, third chamber form resonant cavity, can effectively reduce low-frequency noise.And the 4th to fill up sound absorption in the chamber cotton, forms anechoic chamber, also is surrounded by Sound damping cover in freeing pipe posterior segment periphery simultaneously, can further reduce high frequency noise.The present invention is by three resonant cavities of design and an anechoic chamber, and cancelled transition conduit, and make exhaust airstream flowing in noise elimination cavity more unimpeded, engine exhaust noise is effectively reduced in wide frequency band, and can effectively reduce exhaust back pressure, improve the power of driving engine.But this invention is mainly used on the driving engine, is that required space or constructional feature determined that all it is not suitable for being arranged in the automobile cabin.
The utility model content
In order to strengthen better the noise reduction in the automobile cabin, improve travelling comfort, the utility model provide a kind of take up room little, on the little arrangement sound absorber on the seat of automotive trim layout impact.
The technical solution of the utility model is: a kind of arrangement sound absorber on the seat, comprise sound absorption resonant cavity and microperforated panel, the sound absorption resonant cavity is located at the automotive seat back, sound absorption resonant cavity one side open, microperforated panel is located on the accent of sound absorption resonant cavity, and microperforated panel simultaneously is provided with acoustical plate towards the sound absorption resonant cavity.Resonant cavity can make sound wave disperse, and increase acoustic resistance, microperforated panel is a kind of material with sound absorption structure, has good sound absorbing capabilities, sound absorption resonant cavity and microperforated panel form resonance sound-absorbing structure, but the thickness of slab of microperforated panel, the aperture, the degree of depth of percentage of perforation and cavity has determined the sound absorption frequency, therefore in case after having selected the definite microperforated panel of size and being provided with the cavity of Depth determination, the sound absorption frequency limit is limited, for this reason, adhere to acoustical plate at microperforated panel and further absorb the sound wave that passes microperforated panel, so that the sound absorption frequency limit is larger, thereby strengthen the noise reduction in the automobile cabin.
As preferably, microperforated panel is bolted at the automotive seat back.After long-time the use, microperforated panel also needs to clear up, and prevents that the dust accumulation from stopping up the micropore of microperforated panel or stick on the acoustical plate, causes acoustically effective to reduce, and microperforated panel is connected on the automotive seat with bolt, is easy to dismounting, easy cleaning.
As preferably, acoustical plate is bonded on the microperforated panel.Fix with bonding way, acoustical plate can fully be fitted with microperforated panel, increases as far as possible the effective overlapping area between acoustical plate and microperforated panel, improves acoustically effective.
As preferably, the material of acoustical plate is the glass silk flosssilk wadding.The glass silk flosssilk wadding has excellent vibration damping sound absorbing capabilities, and be easy to processing and cut out, and apparent availability is large, be the ideal material that reduces noise emission.
The beneficial effects of the utility model are:
Further reduce the noise level in the automobile cabin.Sound absorption resonant cavity, microperforated panel and acoustical plate consist of a compound sound-absorption structural, have wider sound sucting band, further strengthen noise reduction on the basis that noise reduction measure comes into force in existing car.
Structure is more hidden, and is little on the automotive trim impact.The utility model setting can be covered fully with seat cover on the seat, does not take any interior space, also can not cause obvious destruction to the upholstery effect.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of side sectional view of the present utility model.
Among the figure, the 1-resonant cavity that absorbs sound, 2-microperforated panel, 3-acoustical plate, 4-automotive seat.
The specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawing specific embodiment.
Embodiment:
As depicted in figs. 1 and 2, a kind of arrangement sound absorber on the seat, comprise sound absorption resonant cavity 1 and microperforated panel 2, sound absorption resonant cavity 1 is rectangular-shaped, is depressed in the back of automotive seat 4, sound absorption resonant cavity 1 one side open, microperforated panel 2 is rectangle, be located on the accent of sound absorption resonant cavity 1, gather on the microperforated panel 2 and run through the micropore of microperforated panel 2, microperforated panel 2 is bonded with the acoustical plate 3 that the glass silk flosssilk wadding is made towards sound absorption resonant cavity 1 one side.The area of microperforated panel 2 covers the accent of sound absorption resonant cavity 1 fully greater than the accent area of sound absorption resonant cavity 1, and microperforated panel 2 is bolted on the automotive seat back.
The sound wave of noise is through behind the microperforated panel 2, and the part that is in microperforated panel 2 absorption bands is absorbed noise attentuation, again through the absorption of acoustical plate 3, noise further weakens, and remaining noise sound wave is partially absorbed by sound absorption resonant cavity 1 again at last, and final noise can be down to a lower level.
Claims (4)
1. arrangement sound absorber on the seat, it is characterized in that comprising sound absorption resonant cavity (1) and microperforated panel (2), sound absorption resonant cavity (1) is located at the automotive seat back, sound absorption resonant cavity (1) one side open, microperforated panel (2) is located on the accent of sound absorption resonant cavity (1), and microperforated panel (2) is provided with acoustical plate (3) towards sound absorption resonant cavity (1) one side.
2. arrangement according to claim 1 sound absorber on the seat is characterized in that microperforated panel (2) is bolted at the automotive seat back.
3. arrangement according to claim 1 and 2 sound absorber on the seat is characterized in that acoustical plate (3) is bonded on the microperforated panel (2).
4. arrangement according to claim 1 and 2 sound absorber on the seat, the material that it is characterized in that acoustical plate (3) is the glass silk flosssilk wadding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220457993.1U CN202863316U (en) | 2012-09-10 | 2012-09-10 | Sound absorption device arranged on seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220457993.1U CN202863316U (en) | 2012-09-10 | 2012-09-10 | Sound absorption device arranged on seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202863316U true CN202863316U (en) | 2013-04-10 |
Family
ID=48030063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220457993.1U Expired - Lifetime CN202863316U (en) | 2012-09-10 | 2012-09-10 | Sound absorption device arranged on seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202863316U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442614A (en) * | 2014-12-26 | 2015-03-25 | 长城汽车股份有限公司 | Device for suppressing radiation noise of plate, plate and vehicle |
| CN104533754A (en) * | 2014-12-24 | 2015-04-22 | 合肥美的电冰箱有限公司 | Silencing assembly of compressor and refrigerator |
| CN105197035A (en) * | 2015-09-16 | 2015-12-30 | 南车青岛四方机车车辆股份有限公司 | Seat for high-speed rail vehicle |
| TWI611955B (en) * | 2015-07-16 | 2018-01-21 | Yen Sun Tech Corp | Fan seat for car seat |
| CN111016548A (en) * | 2019-12-27 | 2020-04-17 | 安徽佳通乘用子午线轮胎有限公司 | Combined noise reduction body and noise reduction tire |
-
2012
- 2012-09-10 CN CN201220457993.1U patent/CN202863316U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533754A (en) * | 2014-12-24 | 2015-04-22 | 合肥美的电冰箱有限公司 | Silencing assembly of compressor and refrigerator |
| CN104442614A (en) * | 2014-12-26 | 2015-03-25 | 长城汽车股份有限公司 | Device for suppressing radiation noise of plate, plate and vehicle |
| TWI611955B (en) * | 2015-07-16 | 2018-01-21 | Yen Sun Tech Corp | Fan seat for car seat |
| CN105197035A (en) * | 2015-09-16 | 2015-12-30 | 南车青岛四方机车车辆股份有限公司 | Seat for high-speed rail vehicle |
| CN111016548A (en) * | 2019-12-27 | 2020-04-17 | 安徽佳通乘用子午线轮胎有限公司 | Combined noise reduction body and noise reduction tire |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |