CN202417758U - Resonant cavity of vehicle air inlet system - Google Patents
Resonant cavity of vehicle air inlet system Download PDFInfo
- Publication number
- CN202417758U CN202417758U CN2011203915042U CN201120391504U CN202417758U CN 202417758 U CN202417758 U CN 202417758U CN 2011203915042 U CN2011203915042 U CN 2011203915042U CN 201120391504 U CN201120391504 U CN 201120391504U CN 202417758 U CN202417758 U CN 202417758U
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- chamber
- resonant cavity
- cavity
- main pipe
- housing
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- Exhaust Silencers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
A resonant cavity of a vehicle air inlet system is fixedly connected onto a main pipeline of a vehicle air inlet system. The resonant cavity includes a housing and an enclosed cavity body formed by the housing, wherein partitions are arranged on the inner wall of the cavity body and divide the cavity body into three independent cavities at least, the cavities are mutually partitioned, and all cavities are communicated with the main pipeline. According to the resonant cavity of the vehicle air inlet system, provided by the utility model, multiple frequency bands of noises can be eliminated, and the noise elimination range is widened, so that the air inlet noises of the air inlet system are efficiently controlled.
Description
Technical field
The utility model relates to vehicle noise control field, relates in particular to the resonant cavity of a kind of vehicle intake system.
Background technique
Vehicle motor in the course of the work, gas handling system can produce inflow noise, for effective controlling noise, in gas handling system, increases resonant cavity usually, so the design of resonant cavity directly influences the control of vehicle noise.
Vehicle adopts the resonant cavity of single cavity or two cavitys more at present; Be that resonant cavity is made up of a cavity, perhaps separate with dividing plate, form two cavitys by intra; But there is certain narrow limitation in such structure to the control of noise; Mainly show: the resonant cavity of single cavity and two cavitys, is difficult to inflow noise is realized effectively control as to the induction noise with a plurality of outstanding crest frequencies because the adjustment range of the volume of cavity is limited; So the shortcoming of above-mentioned resonant cavity is that the frequency of noise elimination scope is less, can not eliminate noise well with a plurality of frequency ranges.
Summary of the invention
The utility model technical problem to be solved is to the resonant cavity frequency of noise elimination scope smaller defect that exists in the existing technology, provides a kind of and can effectively widen the frequency of noise elimination scope, eliminates the resonant cavity of the vehicle intake system of a plurality of frequency range noises.
The above-mentioned technical problem of the utility model is achieved through following technological scheme: the resonant cavity of a kind of vehicle intake system; Be fixedly connected on the main pipe of vehicle intake system; Said resonant cavity comprises housing and the cavity that is formed and sealed by housing; Said cavity inner wall is provided with dividing plate and said dividing plate is divided into three independent cavity at least with cavity, separate each other between the said chamber, and each chamber all is communicated with main pipe.
Further, said cavity inner wall is arranged at intervals with two dividing plates, and said dividing plate is cut apart cavity and formed first chamber, second chamber and the 3rd chamber that separates each other.
Further, the volume of said first chamber, second chamber and the 3rd chamber is respectively V1, V2, V3, and span is 5.5-6.0 liters.Further, said main pipe runs through first chamber, second chamber and the 3rd chamber of intra, and said dividing plate all has through hole, said through hole and the main pipe sealing and fixing that supplies main pipe to pass through.
Further, said main pipe is positioned on the tube wall of first chamber, second chamber and the 3rd chamber and is respectively equipped with first connecting tube, second connecting tube and the 3rd connecting tube that main pipe is communicated with chamber.
Further, the jointing place sealing and fixing of said main pipe and housing.
Further, said inner walls have stiffening plate arranged in a crossed manner.
The resonant cavity of a kind of vehicle intake system that provides according to the utility model; Said resonant cavity comprises housing and the cavity that is formed and sealed by housing; Said cavity inner wall is provided with dividing plate and said dividing plate is divided into three independent cavity at least with cavity, separate each other between the said chamber, and each chamber all is communicated with main pipe; Through at least three independent cavity of intra; Can eliminate the noise of a plurality of frequency ranges, widen the frequency of noise elimination scope, thereby effectively control the inflow noise of gas handling system.
Description of drawings
Fig. 1 is the structural representation of resonant cavity among a kind of embodiment of providing of the utility model.
Fig. 2 is the structural representation of first housing and main pipe among a kind of embodiment of providing of the utility model.
Fig. 3 is the structural representation of second housing and main pipe among a kind of embodiment of providing of the utility model.
Embodiment
For technical problem, technological scheme and beneficial effect that the utility model is solved clearer; Below in conjunction with accompanying drawing and embodiment; The utility model is further elaborated; Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, the resonant cavity of a kind of vehicle intake system is fixedly connected on the main pipe 1 of vehicle intake system, and said resonant cavity comprises housing 2 and the cavity that is formed and sealed by housing, and in order to save the space in the engine compartment, main pipe 1 is designed to the bending pipe.As shown in Figures 2 and 3, in the present embodiment, for the convenience of processing and assembling, said housing 2 comprises that first housing 21 that is arranged at main pipe 1 both sides and second housing, 22, the first housings 21 and second housing 22 are fixed as one through welding.Said main pipe 1 runs through resonant cavity; And the jointing place sealing and fixing of main pipe 1 and housing 2, said first housing 21 comprise and are used for the mounting hole 23 that main pipe 1 runs through that main pipe 1 is fixed at above-mentioned mounting hole 23 places and housing 2 welded seals; In addition; Main pipe 1 is in close proximity to housing 2 places and is provided with the boss 11 that the restriction resonant cavity moves along main pipe 1, and boss 11 is separately positioned on the resonant cavity both sides, and the restriction resonant cavity moves axially along main pipe 1; Said housing 2 is provided with two limiting stoppers 12 that cooperate with boss 11 near a side of each boss 11, and said limiting stopper 12 clamps boss 11, and the restriction resonant cavity circumferentially rotates along main pipe 1.
As shown in Figure 2; Said cavity inner wall is provided with dividing plate 6 and said dividing plate 6 is divided into three independent cavity at least with cavity; Separate each other between the said chamber, and each chamber all is communicated with main pipe 1, in the embodiment that the utility model provides; Said cavity inner wall is arranged at intervals with two dividing plates 6, and said dividing plate 6 is cut apart cavity and formed first chamber 3, second chamber 4 and the 3rd chamber 5 that separates each other.Direction as shown in Figure 2, said second chamber 4 are between first chamber and 3 second chambers 5, and first chamber 3 and the 3rd chamber 5 lay respectively at the above and below of second chamber 4.The volume of said first chamber 3, second chamber 4 and the 3rd chamber 5 is respectively V1, V2, V3, and span is 5.5-6.0 liters, in the present embodiment; The total measurement (volume) of said three chambers is 17.1 liters, and wherein, V1 is 5.5 liters; V2 is 5.7 liters, and V3 is 5.9 liters.
Said main pipe 1 runs through first chamber 3, second chamber 4 and the 3rd chamber 5 of intra; Said dividing plate 6 has the through hole 61 that supplies main pipe 1 to pass through; Said through hole 61 and main pipe 1 sealing and fixing; Main pipe 1 is positioned at and is respectively equipped with first connecting tube 13, second connecting tube 14 and the 3rd connecting tube 15 that main pipe 1 is communicated with chamber on the tube wall of first chamber 3, second chamber 4 and the 3rd chamber 5, and above-mentioned first connecting tube 13, second connecting tube 14 and the 3rd connecting tube 15 extend to chamber by the tube wall of main pipe 1.
Work as noise, i.e. incoming wave is through main pipe 1; Arrive resonant cavity, a part gets into chamber, and a part continues motion in main pipe 1; Get into the indoor gas motion of incoming wave part push chamber of chamber, another part is continued motion in main pipe 1 by housing reflected back main pipe 1.Like this, the energy part of incoming wave is consumed, thereby realizes the function that resonant cavity is eliminated the noise.
If the length of first connecting tube 13, second connecting tube 14 and the 3rd connecting tube 15 is respectively L1, L2, L3; The internal diameter of first connecting tube 13, second connecting tube 14 and the 3rd connecting tube 15 is respectively D1, D2, D3; When resonant cavity is designed, can not only make suitable adjustment according to a plurality of outstanding induction noise crest frequencies to the volume of chamber; Also can further adjust, eliminate outstanding induction noise crest frequency as far as possible the internal diameter and the length of connecting tube.Certainly, the chamber quantity of above-mentioned intra is not limited to three, can be designed to more than three according to concrete requirement, and then possesses the acoustic characteristics to a plurality of frequency ranges.
As shown in Figures 2 and 3, said inner walls has stiffening plate arranged in a crossed manner 7, and each chamber all has stiffening plate 7, is used for increasing the intensity of resonant cavity housing.
As shown in Figure 1, better fixing in order to realize to resonant cavity, on the housing of resonant cavity, be provided with support 8, in the present embodiment, support 8 is fixedly connected on the car body through bolt 9 fixing modes.
In addition, the housing of above-mentioned resonant cavity is by blow moulding and forming, and preparation process is simple, and cost of production is lower.
The above is merely the utility model preferred embodiment; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. the resonant cavity of a vehicle intake system; Be fixedly connected on the main pipe (1) of vehicle intake system; Said resonant cavity comprises housing (2) and the cavity that is formed and sealed by housing (2), it is characterized in that, said cavity inner wall is provided with dividing plate (6) and said dividing plate (6) is divided into three independent cavity at least with cavity; Separate each other between the said chamber, and each chamber all is communicated with main pipe.
2. the resonant cavity of vehicle intake as claimed in claim 1 system; It is characterized in that; Said cavity inner wall is arranged at intervals with two dividing plates (6), and said dividing plate (6) is cut apart cavity and formed first chamber (3), second chamber (4) and the 3rd chamber (5) that separates each other.
3. the resonant cavity of vehicle intake as claimed in claim 2 system is characterized in that the volume of said first chamber (3), second chamber (4) and the 3rd chamber (5) is respectively V1, V2, V3, and span is 5.5-6.0 liters.
4. the resonant cavity of vehicle intake as claimed in claim 2 system; It is characterized in that; Said main pipe (1) runs through first chamber (3), second chamber (4) and the 3rd chamber (5) of intra; Said dividing plate (6) all has the through hole (61) that confession main pipe (1) passes through, said through hole (61) and main pipe (1) sealing and fixing.
5. the resonant cavity of vehicle intake as claimed in claim 4 system; It is characterized in that said main pipe (1) is positioned on the tube wall of first chamber (3), second chamber (4) and the 3rd chamber (5) and is respectively equipped with first connecting tube (13), second connecting tube (14) and the 3rd connecting tube (15) that main pipe (1) is communicated with chamber.
6. the resonant cavity of vehicle intake as claimed in claim 4 system is characterized in that, the jointing place sealing and fixing of said main pipe (1) and housing (2).
7. the resonant cavity of vehicle intake as claimed in claim 1 system is characterized in that said housing (2) inwall has stiffening plate arranged in a crossed manner (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203915042U CN202417758U (en) | 2011-09-27 | 2011-09-27 | Resonant cavity of vehicle air inlet system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203915042U CN202417758U (en) | 2011-09-27 | 2011-09-27 | Resonant cavity of vehicle air inlet system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417758U true CN202417758U (en) | 2012-09-05 |
Family
ID=46742529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203915042U Expired - Lifetime CN202417758U (en) | 2011-09-27 | 2011-09-27 | Resonant cavity of vehicle air inlet system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256154A (en) * | 2013-05-28 | 2013-08-21 | 长城汽车股份有限公司 | Resonant cavity of engine gas intake system |
-
2011
- 2011-09-27 CN CN2011203915042U patent/CN202417758U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256154A (en) * | 2013-05-28 | 2013-08-21 | 长城汽车股份有限公司 | Resonant cavity of engine gas intake system |
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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 |
Granted publication date: 20120905 |
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| CX01 | Expiry of patent term |