CN202273789U - Air filter - Google Patents
Air filter Download PDFInfo
- Publication number
- CN202273789U CN202273789U CN2011203369908U CN201120336990U CN202273789U CN 202273789 U CN202273789 U CN 202273789U CN 2011203369908 U CN2011203369908 U CN 2011203369908U CN 201120336990 U CN201120336990 U CN 201120336990U CN 202273789 U CN202273789 U CN 202273789U
- Authority
- CN
- China
- Prior art keywords
- air
- strainer
- resonant cavity
- noise
- utility
- 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
Links
Images
Abstract
The utility model discloses an air filter. The air filter comprises a shell, a filter element (5), a porous silencing medium layer (2), a resonant cavity (3) and a pored guide tube (1) with a plurality of holes formed on a tube wall, wherein the filter element (5) is mounted in the shell; the porous silencing medium layer is arranged on the lower part of the filter element; the resonant cavity is formed between the porous silencing medium layer and the bottom of the shell; and the pored guide tube is arranged at an air inlet of the air filter and extends from the air inlet to the interior of the shell. On the basis of the traditional air filter, the air filter disclosed by the utility model is characterized in that three silencing structures are originally integrated in the air filter; an integral part for filtering air and eliminating noise is formed by the air filter; the air filter can be used for reliably filtering air and efficiently realizing a silencing function; and the noise of an air inlet system of an automobile engine is reduced.
Description
Technical field
The utility model relates to a kind of automotive engine air intake system parts, particularly, relates to a kind of air-strainer.
Background technique
Along with people are to the raising of car comfort requirement in recent years, the automobile engineer has classified NVH characteristic (being noise, vibration, sound vibration roughness characteristic) as primary design and has considered key element, and wherein noise is the first consideration key element.The noise of automotive engine air intake system is one of topmost noise source of automobile, and the noise of this gas handling system mainly is meant the noise at suction port place, and this noise source is nearest from the compartment, is the main noise source that forms internal car noise.Simultaneously, the noise at suction port place also is the topmost noise source of passing through of automobile.
Air-strainer is as the critical piece that is installed in the suction port place, and its structure, performance have material impact to the noise formation of said automotive engine air intake system.In fact, the travelling comfort design concept of Hyundai Motor has required air-strainer not only can play basic air filtering effect, but also requires it should play the function of expansion silencing apparatus.
But existing air-strainer usually causes very big radiated noise owing to reasons such as unreasonable structure, insufficient rigidity, greatly reduces the travelling comfort that induction noise will improve automobile greatly.In addition; Other air inlet collateral branch silencer element is arranged in outside the air-strainer more on the automobile at present, for example adopts resonant silencing apparatus now of He Muhuo and 1/4 wavelength pipe to carry out noise reduction, and is comparatively complicated on this structural type; Not only increase installation cost, and influence attractive in appearance.
In view of the above-mentioned defective of existing technology, need a kind of novel air-strainer of design, to satisfy the performance requirement that automobile reduces noise.
The model utility content
The utility model technical problem to be solved provides a kind of air-strainer, and this air-strainer not only has reliable air filtering function, and can eliminate the inflow noise of automotive engine air intake system effectively.
In order to solve the problems of the technologies described above; The utility model provides a kind of air-strainer; This air-strainer comprises housing and the filter core that is installed in enclosure interior; This air-strainer also comprises the perforate honeycomb duct that has a plurality of holes on porous noise elimination medium layer, resonant cavity and the tube wall that is arranged on said enclosure interior; Wherein said porous noise elimination medium layer is arranged on the bottom of said filter core, and said resonant cavity is formed between the bottom of said porous noise elimination medium layer and said housing, and said perforate honeycomb duct is arranged on the suction port place of said air-strainer and extends in said housing from this suction port.
Particularly, said housing comprises upper shell and the lower shell body that is assembled together.
Preferably, said resonant cavity is the Helmholtz resonant cavity.
Preferably, said resonant cavity is arranged on the corner location of said housing bottom.
Pass through technique scheme; The air-strainer of the utility model is on the basis of the empty filter of tradition; At the inner integrated three kinds of noise elimination structures of air-strainer, this air-strainer forms the one-piece element of an air filtering and NR noise reduction originally, and it not only can carry out air filtering reliably; And can realize noise elimination function effectively, thereby reduced the noise of automotive engine air intake system.The air filtering device structure of the utility model is reasonable; It is through single empty filter; Can replace complicated silencer element at random in the existing technology, simplify the structure of automotive engine air intake system, it has not only reduced installation cost; And strengthened the aesthetic property of whole gas handling system, improved the riding comfort of automobile.
Other feature and advantage of the utility model will partly specify in embodiment subsequently.
Description of drawings
Attached drawings is used to provide the further understanding to the utility model; And constitute the part of specification; It is used to explain the utility model with following embodiment, but the protection domain of the utility model is not limited to following accompanying drawing and embodiment.In the accompanying drawings:
Fig. 1 is the structural representation of the air-strainer of the utility model embodiment.
Description of reference numerals:
1 perforate honeycomb duct; 2 porous noise elimination medium layers;
3 resonant cavities; 4 lower shell bodys;
5 filter cores; 6 upper shells.
Embodiment
Be elaborated below in conjunction with the embodiment of accompanying drawing to the utility model; Should be understood that; Embodiment described herein only is used for explanation and explains the utility model, and the protection domain of the utility model is not limited to following embodiment.
Referring to shown in Figure 1, the air-strainer of the utility model comprises housing and the filter core 5 that is installed in enclosure interior, and the housing shown in the figure comprises the upper shell 6 and lower shell body 4 that is assembled together; Certainly; The main effect of housing is to provide the installing space of filter core 5, get final product so that filter core 5 is played a protective role, so it is not limited to shape shown in the figure and structure; For example can also take to have the housing of opening, after installation, pass through the form of cover cap enclosing housing opening.Apparently, no matter which kind of structural type housing takes, and it does not all influence the protection domain of the utility model.
Above-mentioned filter core 5 mainly plays the air filtering effect; The air-strainer of the utility model is except said structure; Also be provided with unique noise elimination structure in enclosure interior, particularly, as shown in Figure 1; Said air-strainer also comprises the perforate honeycomb duct 1 that has a plurality of holes on porous noise elimination medium layer 2, resonant cavity 3 and the tube wall that is arranged on said enclosure interior; Wherein porous noise elimination medium layer 2 is arranged on the bottom of said filter core 5, and said resonant cavity 3 is formed between the bottom of said porous noise elimination medium layer 2 and said housing, and said perforate honeycomb duct 1 is arranged on the suction port place of said air-strainer and extends in said housing from this suction port.
Need to prove at this; The air-strainer with said structure of the utility model not only has reliable air filtering effect; And since originally enclosure interior integrated three kinds of noise elimination structures; Be resonant cavity, porous noise elimination medium layer and perforate honeycomb duct, thereby can eliminate the gas handling system noise effectively, play the effect of eliminating noise.
Each that below describe the utility model air-strainer formed member, when relating to above-mentioned three kinds of noise elimination structures, will suitably describe its noise-cancelling theory, certainly, because these noise-cancelling theorys have obtained checking, therefore schematic illustration only.
As stated; Above-mentioned housing comprises the upper shell 6 and lower shell body 4 that is assembled together, and the composition structure of housing and shape can be carried out various modification, and this does not influence the protection domain of the utility model; In addition; Filter core 5 mainly is the main member of air filtering, and this also knows those skilled in the art in the air-strainer field, therefore repeats no more.
Porous noise elimination medium layer 2 is arranged on the bottom of filter core 5, and in Fig. 1, how empty noise elimination medium layer 2 is silencer elements of similar sponge structure, and it plays the dust effect of filtering on the one hand, plays the absorption of noise effect on the one hand.In the field of eliminating noise, utilizing porous sound absorbing material eliminates noise is a kind of effective technical means.With regard to the porous sound absorbing material; The physical arrangement characteristic of this type material is that material internal has a large amount of, that interpenetrate, outwardly open micropore; Be that material has certain gas permeability, widely used on the engineering have two big types of lamination coating and putty material, wherein; The lamination coating class comprises glass wool and slag wool or is the various sound absorbing plates processed of main raw material or sound absorbing member etc. with this type of material that the putty material class comprises microporous brick and graininess slag acoustical tile etc.In the utility model, porous noise elimination medium layer 2 specifically can adopt glass wool or slag wool to form.
Resonant cavity 3 (those skilled in the art are also referred to as " resonant cavity ") is formed between the bottom of said porous noise elimination medium layer 2 and said housing; Preferably; As shown in Figure 1; This resonant cavity 3 can be arranged on the corner location of said housing bottom, can make full use of housing sidewall like this and form resonant cavity.Resonant cavity is mainly used in the resonance that forms sound, makes acoustic energy accelerate decay, thereby reaches the purpose of noise reduction.Preferably, in order to strengthen erasure effect better, resonant cavity 3 is the Helmholtz resonant cavity, and is well-known, and the Helmholtz resonator muffler is a kind of known silencing apparatus, and it mainly is used for eliminating low-frequency noise.This Helmholtz resonator muffler is simple in structure; Mainly form the resonance noise reduction of sound through the Helmholtz resonant cavity of inside; Volume through adjustment Helmholtz resonant cavity etc.; Can change the frequency and the noise elimination effect of noise elimination, the shape and structure of Helmholtz resonant cavity is well known to those skilled in the art, at this it is no longer described.The air-strainer of the utility model can preferably utilize the principle of Helmholtz resonator muffler, and the resonant cavity of the enclosure interior of air-strainer can preferably be set to small-sized Helmholtz resonant cavity, can reach better noise elimination effect like this.
Visible by last description; The air-strainer of the utility model is on the basis of the empty filter of tradition; At the inner integrated three kinds of noise elimination structures of air-strainer, this air-strainer forms the one-piece element of an air filtering and NR noise reduction originally, and it not only can carry out air filtering reliably; And can realize noise elimination function effectively, thereby reduced the noise of automotive engine air intake system.The air filtering device structure of the utility model is reasonable; It is through single empty filter; Can replace complicated silencer element at random in the existing technology, simplify the structure of automotive engine air intake system, it has not only reduced installation cost; And strengthened the aesthetic property of whole gas handling system, improved the riding comfort of automobile.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned mode of execution; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technological scheme of the utility model, these simple variant all belong to the protection domain of the utility model.For example, can change resonant cavity 3 into be arranged on housing bottom zone line from the corner location of housing bottom, this belongs to the protection domain of the utility model equally.
Need to prove that in addition each the concrete technical characteristics described in above-mentioned embodiment under reconcilable situation, can make up through any suitable manner.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various mode of execution of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.
Claims (4)
1. air-strainer; Comprise housing and the filter core (5) that is installed in enclosure interior; It is characterized in that; This air-strainer also comprises the perforate honeycomb duct (1) that has a plurality of holes on porous noise elimination medium layer (2), resonant cavity (3) and the tube wall that is arranged on said enclosure interior; Wherein said porous noise elimination medium layer (2) is arranged on the bottom of said filter core, and said resonant cavity (3) is formed between the bottom of said porous noise elimination medium layer (2) and said housing, and said perforate honeycomb duct (1) is arranged on the suction port place of said air-strainer and extends in said housing from this suction port.
2. air-strainer according to claim 1 is characterized in that, said housing comprises upper shell (6) and the lower shell body (4) that is assembled together.
3. air-strainer according to claim 1 is characterized in that, said resonant cavity (3) is the Helmholtz resonant cavity.
4. according to each described air-strainer in the claim 1 to 3, it is characterized in that said resonant cavity (3) is arranged on the corner location of said housing bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203369908U CN202273789U (en) | 2011-09-08 | 2011-09-08 | Air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203369908U CN202273789U (en) | 2011-09-08 | 2011-09-08 | Air filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273789U true CN202273789U (en) | 2012-06-13 |
Family
ID=46194151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203369908U Expired - Fee Related CN202273789U (en) | 2011-09-08 | 2011-09-08 | Air filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273789U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061094A (en) * | 2013-03-18 | 2014-09-24 | 上汽通用五菱汽车股份有限公司 | Low-noise air inlet device of engine |
| CN104454261A (en) * | 2014-12-11 | 2015-03-25 | 无锡同捷汽车设计有限公司 | Air filter of automobile |
| CN112282990A (en) * | 2020-11-17 | 2021-01-29 | 奇瑞商用车（安徽）有限公司 | Automobile air filter structure |
| CN114962092A (en) * | 2022-05-30 | 2022-08-30 | 一汽奔腾轿车有限公司 | Air cleaner filter element structure with function of making an uproar is fallen |
-
2011
- 2011-09-08 CN CN2011203369908U patent/CN202273789U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061094A (en) * | 2013-03-18 | 2014-09-24 | 上汽通用五菱汽车股份有限公司 | Low-noise air inlet device of engine |
| CN104454261A (en) * | 2014-12-11 | 2015-03-25 | 无锡同捷汽车设计有限公司 | Air filter of automobile |
| CN112282990A (en) * | 2020-11-17 | 2021-01-29 | 奇瑞商用车（安徽）有限公司 | Automobile air filter structure |
| CN114962092A (en) * | 2022-05-30 | 2022-08-30 | 一汽奔腾轿车有限公司 | Air cleaner filter element structure with function of making an uproar is fallen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201474756U (en) | Single-row gas pipe muffler for diesel generator | |
| CN202273789U (en) | Air filter | |
| CN105863783A (en) | Noise reduction device of automobile engine | |
| CN205330774U (en) | Special type exhaust of vehicle silencer | |
| CN200975275Y (en) | combination type exhausting silencer for gas engine | |
| CN103835794A (en) | Exhaust silencer for automobiles with output volume of 2.0L | |
| CN103452717B (en) | A kind of car engine air admittance baffler | |
| CN205532784U (en) | Impedance combined type automobile muffler | |
| CN201021648Y (en) | A novel impedance compound muffling system for car engine air supply system | |
| CN202628327U (en) | Air inlet tube for air filter | |
| CN101852115B (en) | Automotive exhaust muffler with composite three-dimensional phononic crystals | |
| CN201377347Y (en) | Multi-cavity labyrinth dissipation type silencer | |
| CN201037455Y (en) | Contracted cavity structure silencer | |
| CN202300744U (en) | Air filter, engine air inlet system and automobile | |
| CN103104384B (en) | Engine air inlet tube, engine aspirating system and automobile | |
| CN202690172U (en) | Gas inlet pipe structure for main muffler | |
| CN201794641U (en) | Automobile exhaust silencer adopting compound three-dimensional sonic crystal | |
| CN201884096U (en) | Foamed aluminium automobile internal-combustion engine exhaust silencer | |
| CN203035309U (en) | Gasoline engine muffler | |
| CN204783176U (en) | Light truck muffler | |
| CN203925669U (en) | A kind of exhaust silencer for urban small automobile | |
| CN203867664U (en) | Carbon deposition prevention silencer | |
| CN201041110Y (en) | Air admission silencing structure of automobile | |
| KR20110011738U (en) | Muffler for Vehicle | |
| JP6169035B2 (en) | Silencer structure for exhaust noise of fuel cell vehicles |
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: 20120613 Termination date: 20170908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |