CN202806619U - Cabin sealing strip - Google Patents
Cabin sealing strip Download PDFInfo
- Publication number
- CN202806619U CN202806619U CN201220501836.6U CN201220501836U CN202806619U CN 202806619 U CN202806619 U CN 202806619U CN 201220501836 U CN201220501836 U CN 201220501836U CN 202806619 U CN202806619 U CN 202806619U
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- CN
- China
- Prior art keywords
- cabin
- resonant cavity
- cavity
- sealing band
- noise
- 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
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- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The utility model discloses a cabin sealing strip which comprises a sponge tube and dense glue, wherein a resonant cavity is fixedly arranged between the sponge tube and the dense glue. According to the cabin sealing strip, due to the fact that the resonant cavity is additionally arranged between the sponge tube and the dense glue, by means of the Kelvin-Helmholtz theorem, the purpose of elimination of noise inside an engine cabin is achieved, and the cabin sealing strip has the advantages of being simple in structure, low in manufacturing cost, convenient to install, and easy to produce in bulk. The cabin sealing strip is suitable for seal of various automobile engine cabins.
Description
Technical field
The utility model relates to a kind of cabin sealing arrangement, relates in particular to a kind of for automotive engine compartment being sealed the cabin sealing band of elimination interior noise.
Background technology
The engine nacelle sealing band is installed between machinery space and the engine case, plays the effect of waterproof and dustproof, vibration damping, sound insulation and sealing.Along with improving constantly of automobile research and development technology, people are more and more higher to the requirement of vehicle ride comfort, and noise is the key factor that affects traveling comfort, and the noise that produces during engine operation is one of main source of car noise.In the prior art, motor noise mainly adopts the method for isolation.Come noise isolation with sealing band, because the oscillation frequency of engine interior is many, consequent noise frequency is also many, and gasket structure is thinner, and the noise of component frequency just can pass sealing band and enter car body inside, thereby affects the traveling comfort of car load.
The utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of cabin sealing band, by between sponge tube and closely knit glue, setting up resonant cavity, utilize the Helmholtz theorem, reach the purpose of eliminating the machinery space interior noise, have characteristics simple in structure, cheap, as to be convenient to install, be easy to mass production.
For achieving the above object, a kind of cabin of the present utility model sealing band comprises sponge tube, closely knit glue, is fixed with resonant cavity between described sponge tube and the closely knit glue.
As to restriction of the present utility model, be provided with the dividing plate that at least one is separated into resonant cavity a plurality of cavitys along its length direction in the described resonant cavity.
As the restriction to aforesaid way, the volume of each cavity is unequal mutually.
Further restriction as to aforesaid way is inserted with Inserting Tube in each cavity.
As the further restriction to aforesaid way, length, the sectional area of the Inserting Tube that inserts in each cavity are different.
As to restriction of the present utility model, described resonant cavity is rectangular structure.
The utility model also has a kind of restriction, described sponge tube, resonant cavity and the closely knit glue structure that is formed in one.
Owing to adopted technique scheme, the utility model compared with prior art, obtained technological advance is:
1, by between sponge tube and closely knit glue, setting up resonant cavity, when the machinery space interior noise pass through sealing band, utilize the Helmholtz theorem, a part of noise is reflected back, offset with the noise of the same frequency that enters cavity, to reach the purpose of eliminating noise;
2, the effect of Inserting Tube is equivalent to the wavelength pipe, can eliminate the noise in a certain frequency band, and the frequency size of the noise of elimination reduces along with the increase of Inserting Tube length.Because length and the cross-sectional area of Inserting Tube are different, so that the volume of new cavity is different, eliminate the noise of different frequency with correspondence.
In sum, the utlity model has characteristics simple in structure, cheap, as to be convenient to install, be easy to mass production.
The utility model is applicable in the various automobile engine nacelle sealings.
Description of drawings
Below in conjunction with drawings and the specific embodiments the utility model is done further to describe in detail.
Fig. 1 is the perspective view of the utility model embodiment;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the A-A view of Fig. 1.
Among the figure: 1, sponge tube; 2, resonant cavity; 3, Inserting Tube; 4, closely knit glue; 5, dividing plate; 6, cavity.
The specific embodiment
The cabin sealing band that present embodiment relates to as shown in Figures 1 and 2, comprises sponge tube 1, closely knit glue 4 and the resonant cavity 2 between sponge tube 1 and closely knit glue 4, sponge tube 1, resonant cavity 2 and closely knit glue 4 structure that is formed in one.
When present embodiment is used, when the noise in the machinery space passes through sealing band, can enter in the new cavity 6 from Inserting Tube 3, utilize the Helmholtz theorem, part noise is reflected back, and offsets with the noise of the same frequency that enters new cavity 6, to reach the purpose of eliminating noise.
Claims (7)
1. a cabin sealing band comprises sponge tube (1), closely knit glue (4), it is characterized in that: be fixed with resonant cavity (2) between described sponge tube (1) and the closely knit glue (4).
2. cabin according to claim 1 sealing band is characterized in that: is provided with the dividing plate (5) that at least one is separated into resonant cavity (2) a plurality of cavitys (6) along its length direction in the described resonant cavity (2).
3. cabin according to claim 2 sealing band, it is characterized in that: the volume of each cavity (6) is unequal mutually.
4. it is characterized in that: in each cavity (6), be inserted with Inserting Tube (3) according to claim 2 or 3 described cabin sealing bands.
5. cabin according to claim 4 sealing band, it is characterized in that: length, the sectional area of the Inserting Tube (3) that inserts in each cavity (6) are different.
6. cabin according to claim 1 sealing band, it is characterized in that: described resonant cavity (2) is rectangular structure.
According to claim 1 in each described cabin sealing band, it is characterized in that: described sponge tube (1), resonant cavity (2) and closely knit glue (4) structure that is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220501836.6U CN202806619U (en) | 2012-09-28 | 2012-09-28 | Cabin sealing strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220501836.6U CN202806619U (en) | 2012-09-28 | 2012-09-28 | Cabin sealing strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202806619U true CN202806619U (en) | 2013-03-20 |
Family
ID=47865547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220501836.6U Expired - Fee Related CN202806619U (en) | 2012-09-28 | 2012-09-28 | Cabin sealing strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202806619U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939616A (en) * | 2014-04-11 | 2014-07-23 | 东南大学 | High-performance low-noise sealing device based on Helmholtz resonance principle |
| CN105346478A (en) * | 2015-10-10 | 2016-02-24 | 重庆长安汽车股份有限公司 | Sealing strip assembly for rear end of automobile engine compartment |
| CN107618456A (en) * | 2017-09-15 | 2018-01-23 | 安徽省地坤汽车天窗科技有限公司 | A kind of automobile body sealing strip |
| WO2020125799A1 (en) * | 2018-12-21 | 2020-06-25 | The Hong Kong University Of Science And Technology | Soft acoustic boundary plate |
| CN111503410A (en) * | 2020-04-01 | 2020-08-07 | 西安交通大学 | Helmholtz type silencer |
-
2012
- 2012-09-28 CN CN201220501836.6U patent/CN202806619U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939616A (en) * | 2014-04-11 | 2014-07-23 | 东南大学 | High-performance low-noise sealing device based on Helmholtz resonance principle |
| CN103939616B (en) * | 2014-04-11 | 2016-02-10 | 东南大学 | Based on high-performance, the low noise seal arrangement of Helmholtz resonance principle |
| CN105346478A (en) * | 2015-10-10 | 2016-02-24 | 重庆长安汽车股份有限公司 | Sealing strip assembly for rear end of automobile engine compartment |
| CN107618456A (en) * | 2017-09-15 | 2018-01-23 | 安徽省地坤汽车天窗科技有限公司 | A kind of automobile body sealing strip |
| WO2020125799A1 (en) * | 2018-12-21 | 2020-06-25 | The Hong Kong University Of Science And Technology | Soft acoustic boundary plate |
| US11905703B2 (en) | 2018-12-21 | 2024-02-20 | The Hong Kong University Of Science And Technology | Soft acoustic boundary plate |
| CN111503410A (en) * | 2020-04-01 | 2020-08-07 | 西安交通大学 | Helmholtz type silencer |
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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 |
Granted publication date: 20130320 Termination date: 20210928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |