CN105003369A - Vehicle intake silencing structure - Google Patents
Vehicle intake silencing structure Download PDFInfo
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- CN105003369A CN105003369A CN201510384123.4A CN201510384123A CN105003369A CN 105003369 A CN105003369 A CN 105003369A CN 201510384123 A CN201510384123 A CN 201510384123A CN 105003369 A CN105003369 A CN 105003369A
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- frequency resonant
- suction tude
- tube wall
- resonant cavity
- low
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Abstract
The invention discloses a vehicle intake silencing structure. The vehicle intake silencing structure comprises a low-frequency resonant cavity fixed on the wall of an air inlet pipe, and further comprises a high-frequency resonant cavity positioned in the low-frequency resonant cavity and fixed on the wall of the air inlet pipe, and a silencing pipe, wherein a through hole is formed in the connected place between the wall of the air inlet pipe and the high-frequency resonant cavity; one end of the silencing pipe is communicated with the air inlet pipe through the through hole, and the other end penetrates outside the high-frequency resonant cavity to be communicated with the low-frequency resonant cavity; and multiple through holes are formed in the wall, positioned in the high-frequency resonant cavity, of the silencing pipe. The vehicle intake structure not only can solve the problem of intake low-frequency noise generated in the starting of a supercharged engine, bit also can solve the problem of high-frequency noise generated in the acceleration process of the supercharged engine. Meanwhile, the vehicle intake silencing structure reduces the manufacturing cost, and is convenient to arrange a cabin without losing beauty.
Description
Technical field
The present invention relates to vehicle noise reduction field, particularly a kind of vehicle intake noise-reducing structure.
Background technique
Suction tude is the requisite parts of automobile air inlet system, and the inlet end of suction tude is fixed on the front cross beam of automotive body, and the other end is connected with motor by air-strainer.Larger noise being produced when gas is entered in motor by suction tude, in order to reduce noise, occurring more baffler on the market.
Comparatively general baffler roughly comprises the low-frequency resonant chamber fixing with suction tude tube wall, suction tude connects a quarter-wave long tube, makes it be communicated with suction tude and eliminate the noise for some narrow-bands.But, the noise produced during air inlet is a more than frequency band often, if desired noise reduction is carried out to multiple frequency band, then need on suction tude tube wall, install multiple resonant cavity or quarter-wave long tube, the height, the broadband noise that especially produce for supercharged engine need to arrange that multiple resonant cavity or quarter-wave long tube could solve induction noise problem especially.This bring an a series of difficult problem will to car load factory, and such as manufacture cost increases, cabin space limitedly cannot be arranged, install inconvenience and affect attractive in appearance.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention is: provide a kind of and can solve the air inlet low-frequency noise problem produced when supercharged engine is started to walk, can solve again the vehicle intake noise-reducing structure of the high-frequency noise problem produced in supercharged engine accelerating process, the space shared by described vehicle intake noise-reducing structure is less, cost is lower.
For solving the problems of the technologies described above, the technical solution used in the present invention is: provide a kind of vehicle intake noise-reducing structure, comprise the low-frequency resonant chamber be fixed on suction tude tube wall, also comprise one and be positioned at low-frequency resonant chamber and the high-frequency resonant cavity be fixed on suction tude tube wall and a hush pipe, a through hole is offered in the joint of suction tude tube wall and high-frequency resonant cavity, one end of described hush pipe is communicated with suction tude by this through hole, the other end passes high-frequency resonant cavity to be communicated with low-frequency resonant chamber, the tube wall being positioned at high-frequency resonant cavity at hush pipe offers some perforation.
As optimization, described high-frequency resonant cavity is an annular chamber, and it has a diapire be connected with suction tude tube wall, and this diapire is the arc shaped surface matched with suction tude tube wall.
As optimization, one end end face of described hush pipe is the curved end matched with described suction tude tube wall.
As optimization, the evenly spaced periphery being arranged in hush pipe tube wall of described perforation.
As optimization, the cavity in described low-frequency resonant chamber is provided with at least one stiffening rib.
As optimization, described low-frequency resonant chamber, high-frequency resonant cavity, hush pipe and suction tude tube wall rush molded.
As optimization, the inlet end of described suction tude is connected with the front cross beam of vehicle body, and the other end is connected with motor by air-strainer.
As optimization, the inlet end of described suction tude is horn-like, is provided with at least two attachment lugs on its external wall, and at least two attachment lugs offer fixed hole respectively, and the front cross beam that construction bolt is each passed through this fixed hole and vehicle body removably connects.
Vehicle intake noise-reducing structure of the present invention, a punched-type high-frequency resonant cavity is embedded in low-frequency resonant chamber, hush pipe one end is communicated with suction tude, the other end passes tremendously low frequency resonant cavity through after high-frequency resonant cavity, the air inlet low-frequency noise problem produced when can solve supercharged engine starting like this, the high-frequency noise problem produced in supercharged engine accelerating process can be solved again, reduce manufacture cost simultaneously, to facilitate Arrangement of Engine-room not lose again attractive in appearance.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of vehicle intake noise-reducing structure one embodiment of the present invention.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the sectional view of A-A in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 to Fig. 3, a kind of vehicle intake noise-reducing structure of the present embodiment, comprise the low-frequency resonant chamber 200 be fixed on suction tude 100 tube wall, also comprise one and be positioned at low-frequency resonant chamber 200 and the high-frequency resonant cavity 300 be fixed on suction tude 100 tube wall and a hush pipe 400, the joint of suction tude 100 tube wall and high-frequency resonant cavity 300 offers a through hole 101, one end of described hush pipe 400 is communicated with suction tude 100 by this through hole 101, the other end passes high-frequency resonant cavity 300 to be communicated with low-frequency resonant chamber 200, the tube wall being positioned at high-frequency resonant cavity 300 at hush pipe 400 offers some perforation 401.Particularly:
In the present embodiment, described suction tude 100 is in snakelike or kink shape, and it has one in trumpet-shaped inlet end or suction port, and this inlet end is connected with the front cross beam of vehicle body, and the other end is connected with motor by air-strainer.Particularly, the outer wall of horn-like suction port is provided with two relative attachment lugs 102, and two attachment lugs 102 offer fixed hole respectively, and the front cross beam that construction bolt is each passed through this fixed hole and vehicle body removably connects.The attachment lug 102 be oppositely arranged by two makes suction port firmly be fixed on the front cross beam of vehicle body, has saved raw material.Understandable, in other examples, according to different demands, the increase that the quantity of attachment lug 102 can also be suitable.
The cavity geometry in low-frequency resonant chamber 200 can set according to different automobile types, different spaces.In this example, the cavity in described low-frequency resonant chamber 200 is roughly in L shape, cavity can be sealed cavity, the arc shaped surface toward cavity indent can be processed in the position that it is connected with suction tude 100 tube wall, closely cooperate to make itself and suction tude 100 tube wall, in order to increase the self-strength in low-frequency resonant chamber 200, low-frequency resonant chamber 200 is provided with at least one stiffening rib 201.
In this example, the cavity in low-frequency resonant chamber 200 is non-close cavity, the opening running through this junction surface is offered in the one side be connected with suction tude 100 tube wall, the bore of opening is less than the external diameter of suction tude 100, when the cavity in low-frequency resonant chamber 200 is connected with suction tude 100 tube wall, opening is affixed on suction tude 100 tube wall, and the bore due to opening is less than the external diameter of suction tude 100, therefore, suction tude 100 can not be housed inside because opening is excessive in low-frequency resonant chamber 200.Adopt this structure, make the technique in processing low-frequency resonant chamber 200 simpler, do not need to process the arc shaped surface matched with suction tude 100 tube wall, only need to offer the opening that runs through the junction surface in low-frequency resonant chamber 200, can also save material.
Described high-frequency resonant cavity 300 is an annular chamber, and it is enclosed by diapire 301, roof 302 and annular sidewall 303 and forms, and diapire 301 is connected with suction tude 100 tube wall, and roof 302 or sidewall 303 offer a punched out passed for hush pipe 400.Described diapire 301 also has an arc shaped surface to cavity indent, and this arc shaped surface and suction tude 100 tube wall match, and closely cooperates to make high-frequency resonant cavity 300 and suction tude 100 tube wall.Understandable, in other examples, the shape of described frequency cavity or structure can have different changes, and such as it can be tetragonal body, polymorphic structure cavity etc.It is also understood that, in various embodiments, the diapire 301 of described high frequency resonate cavity can also offer the opening running through this diapire 301, the bore of this opening is less than the bore of the opening in above-mentioned low-frequency resonant chamber 200, its Placement and aforesaid way same or similar, just repeat no longer one by one herein.
Described through hole 101 is opened in suction tude 100 tube wall and high-frequency resonant cavity 300 joint, and concrete hole opening technology does not impose any restrictions, as long as form a through hole 101 in this joint.One end of hush pipe 400 is connected with suction tude 100 by this through hole 101, and one end is positioned at low-frequency resonant chamber 200 through after the punched out on the roof 302 of high-frequency resonant cavity 300 or sidewall 303 in addition.The tube wall being positioned at high-frequency resonant cavity 300 one end at hush pipe 400 offers some perforation 401(and refers to Fig. 3), on the evenly spaced outer circumferential face being located at the tube wall of hush pipe 400 of some perforation 401.In this example, some perforation 401 are arranged around the outer circumferential face of hush pipe 400, and to form the array of many row's multiple rows, each perforation 401 of next row is positioned at immediately below each perforation 401 of row, and the perforation 401 of each row is positioned at same level.
In the present embodiment, described low-frequency resonant chamber 200, high-frequency resonant cavity 300, hush pipe 400 rush molded with suction tude 100 tube wall.
The embodiment of the present invention, after gas enters from the suction port of suction tude 100, motor is flow to after suction tude 100, air-strainer, when air-flow is through the joint of high-frequency resonant cavity 300 with suction tude 100 tube wall, part gas flows to hush pipe 400 by described through hole 101, wherein a part of gas in hush pipe 400 is flow in high-frequency resonant cavity 300 by some perforation 401 and carries out noise reduction, and the wherein another part gas in hush pipe 400 directly flows to low-frequency resonant chamber 200 and carries out noise reduction.Gas in high-frequency resonant cavity 300 is flowed into after in hush pipe 400 by some perforation 401 again, and point both direction flowing, a direction flows back in suction tude 100, and another direction is through hush pipe 400 and flows to low-frequency resonant chamber 200.And the gas in low-frequency resonant chamber 200 flows back to suction tude 100 by hush pipe 400 again.Gas finally can enter motor through these structures, can eliminate the noise through these structures to some characteristic frequency.
The embodiment of the present invention, a punched-type high-frequency resonant cavity 300 is embedded in low-frequency resonant chamber 200, hush pipe 400 one end is communicated with suction tude 100, the other end passes tremendously low frequency resonant cavity 200 through after high-frequency resonant cavity 300, the air inlet low-frequency noise problem produced when can solve supercharged engine starting like this, can solve again the high-frequency noise problem produced in supercharged engine accelerating process.Reduce manufacture cost simultaneously, to facilitate Arrangement of Engine-room not lose again attractive in appearance.
These are only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. a vehicle intake noise-reducing structure, comprise the low-frequency resonant chamber be fixed on suction tude tube wall, it is characterized in that: also comprise one and be positioned at low-frequency resonant chamber and the high-frequency resonant cavity be fixed on suction tude tube wall and a hush pipe, a through hole is offered in the joint of suction tude tube wall and high-frequency resonant cavity, one end of described hush pipe is communicated with suction tude by this through hole, the other end passes high-frequency resonant cavity to be communicated with low-frequency resonant chamber, and the tube wall being positioned at high-frequency resonant cavity at hush pipe offers some perforation.
2. vehicle intake noise-reducing structure as claimed in claim 1, it is characterized in that: described high-frequency resonant cavity is an annular chamber, it has a diapire be connected with suction tude tube wall, and this diapire is the arc shaped surface matched with suction tude tube wall.
3. vehicle intake noise-reducing structure as claimed in claim 1, is characterized in that: one end end face of described hush pipe is the curved end matched with described suction tude tube wall.
4. vehicle intake noise-reducing structure as claimed in claim 1, is characterized in that: the evenly spaced periphery being arranged in hush pipe tube wall of described perforation.
5. vehicle intake noise-reducing structure as claimed in claim 1, is characterized in that: on the cavity in described low-frequency resonant chamber, be provided with at least one stiffening rib.
6. the vehicle intake noise-reducing structure any one of claim 1 to 5 as described in claim, is characterized in that: described low-frequency resonant chamber, high-frequency resonant cavity, hush pipe and suction tude tube wall rush molded.
7. the vehicle intake noise-reducing structure any one of claim 1 to 5 as described in claim, is characterized in that: the inlet end of described suction tude is connected with the front cross beam of vehicle body, and the other end is connected with motor by air-strainer.
8. vehicle intake noise-reducing structure as claimed in claim 7, it is characterized in that: the inlet end of described suction tude is horn-like, be provided with at least two attachment lugs on its external wall, at least two attachment lugs offer fixed hole respectively, and the front cross beam that construction bolt is each passed through this fixed hole and vehicle body removably connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384123.4A CN105003369A (en) | 2015-07-03 | 2015-07-03 | Vehicle intake silencing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384123.4A CN105003369A (en) | 2015-07-03 | 2015-07-03 | Vehicle intake silencing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105003369A true CN105003369A (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510384123.4A Pending CN105003369A (en) | 2015-07-03 | 2015-07-03 | Vehicle intake silencing structure |
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| CN (1) | CN105003369A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201041110Y (en) * | 2007-04-10 | 2008-03-26 | 奇瑞汽车有限公司 | Air admission silencing structure of automobile |
| CN103362704A (en) * | 2013-07-22 | 2013-10-23 | 长城汽车股份有限公司 | Vehicle and engine intake pipe assembly thereof |
| CN104005889A (en) * | 2014-06-13 | 2014-08-27 | 成都万友滤机有限公司 | Combined resonator |
| CN204783373U (en) * | 2015-07-03 | 2015-11-18 | 力帆实业(集团)股份有限公司 | Vehicle silencing device that admits air |
-
2015
- 2015-07-03 CN CN201510384123.4A patent/CN105003369A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201041110Y (en) * | 2007-04-10 | 2008-03-26 | 奇瑞汽车有限公司 | Air admission silencing structure of automobile |
| CN103362704A (en) * | 2013-07-22 | 2013-10-23 | 长城汽车股份有限公司 | Vehicle and engine intake pipe assembly thereof |
| CN104005889A (en) * | 2014-06-13 | 2014-08-27 | 成都万友滤机有限公司 | Combined resonator |
| CN204783373U (en) * | 2015-07-03 | 2015-11-18 | 力帆实业(集团)股份有限公司 | Vehicle silencing device that admits air |
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Application publication date: 20151028 |