CN206522207U - air filter assembly - Google Patents
air filter assembly Download PDFInfo
- Publication number
- CN206522207U CN206522207U CN201720180796.2U CN201720180796U CN206522207U CN 206522207 U CN206522207 U CN 206522207U CN 201720180796 U CN201720180796 U CN 201720180796U CN 206522207 U CN206522207 U CN 206522207U
- Authority
- CN
- China
- Prior art keywords
- intake duct
- air intake
- noise elimination
- raised
- air
- 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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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a kind of air filter assembly, including noise elimination cavity and the filter cavity with noise elimination cavity body phase even；The air intake duct set through noise elimination cavity is provided with noise elimination cavity body, one end of air intake duct is that, positioned at the external air inlet of noise elimination cavity, the other end of air intake duct is the connector communicated with filter cavity；The both sides of air intake duct are outer respectively to connect one first raised chamber and one second raised chamber, and two raised chambers are respectively positioned in noise elimination cavity body；First raised chamber is directly communicated by the first connecting hole with air intake duct, is provided between the second raised chamber and air intake duct on dividing plate, dividing plate and is offered some first sound attenuation holes；The aperture of first connecting hole is more than the aperture of the first sound attenuation hole.This programme on air intake duct by setting two raised chambers, and two raised chambers separately constitute two resonators；Because the coupling part of two cavitys and air intake duct is of different sizes, therefore, the sound wave of two kinds of different frequency waveforms can be offset, so as to reach noise elimination purpose, the comfortableness of vehicle is improved with this.
Description
Technical field
The utility model is related to car filters device field, more particularly to a kind of air filter assembly.
Background technology
Air filter of automobile is a pith of automobile air inlet system, and air filter of automobile was mainly used in air filtering
Impurity particle, reduces the abrasion of the parts such as cylinder, piston and piston ring, plays the service life of extension engine, reduction and starts
The function of machine induction noise.
With the lifting of living standard, automobile has become a kind of popular consumer goods, and requirement of the people to automobile is also more next
It is higher, particularly in addition to dynamic property, economy, cost performance etc. pay close attention to more performance indications, vehicle vibrations, noise are also carried
More requirements are gone out.The mode of traditional elimination inflow noise is by increasing air filter volume, increasing the length of pipeline, in pipe
Arrange that the modes such as resonator reach that noise elimination is acted on road.
But in view of current hair cabin inner space is all very limited, these three quieter manners have certain in arrangement
It is difficult.Air filter volume and length of pipe are impossible to increase too much, limited space are changed, while the oversize intake resistance meeting of pipeline
Increase.Arrange that resonator can only eliminate specific noise on pipeline, an a kind of noise for frequency of resonator correspondence, for close to humorous
The noise of vibration frequency can play effective noise elimination effect, and then seldom not play noise elimination even to other frequencies.
Utility model content
The utility model is in order to solve a kind of noise of frequency of existing resonator correspondence, for close to resonant frequency
Noise can play effective noise elimination effect, and the problem of then seldom even do not play noise elimination to other frequencies.
The utility model provides a kind of air filter assembly to achieve these goals, including noise elimination cavity and is eliminated the noise with described
The connected filter cavity of cavity；The air intake duct through the noise elimination cavity, the one of the air intake duct are provided with the noise elimination cavity body
Hold as positioned at the external air inlet of noise elimination cavity, the other end of the air intake duct is the connector communicated with the filter cavity；Institute
The both sides for stating air intake duct connect one first raised chamber and one second raised chamber outside respectively, and two raised chambers are respectively positioned on the noise elimination cavity
It is interior；Described first raised chamber is directly communicated by the first connecting hole with air intake duct, is provided between the described second raised chamber and air intake duct
Some first sound attenuation holes are offered on dividing plate, the dividing plate；The aperture of first connecting hole is more than first sound attenuation hole
Aperture.
Preferably, the air intake duct is to become big horn-type structure to filter cavity direction opening.
Preferably, the air intake duct is inclined upwardly predetermined angle on horizontal direction；The air inlet is located at the connection
The bottom of mouth.
Preferably, the air intake duct angle of inclination is between 10 °~18 °.
Preferably, the filter cavity includes upper shell, lower house and is located between the upper shell and the lower house
Filter screen, the upper shell is connected with the air intake duct；The outside of the lower house is connected with an escape pipe.
Preferably, the described first raised chamber is located at the middle part of the air intake duct, and the described second raised chamber is just to described first
Raised chamber is set.
Preferably, multiple second sound attenuation holes are additionally provided with the air intake duct between the air inlet and the first raised chamber,
Second sound attenuation hole is located in the noise elimination cavity body；Also set on air intake duct between the described first raised chamber and the second raised chamber
There is one second connecting hole；The aperture of second connecting hole is more than the aperture of second sound attenuation hole.
Effect of the present utility model is：This programme on air intake duct by setting two raised chambers, two raised chambers point
Open two resonators of composition；Because the coupling part of two cavitys and air intake duct is of different sizes, therefore so that noise waves are in air intake duct
Interior two raised chambers and shake back and forth, the sound wave of two kinds of different frequency waveforms can be offset, so as to reach noise elimination purpose, carried with this
The high comfortableness of vehicle.
Brief description of the drawings
, below will be to institute in embodiment in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only described in the utility model
Some embodiments, for those of ordinary skill in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the overall structure diagram of air filter assembly in the utility model embodiment.
Fig. 2 is Fig. 1 top view.
Fig. 3 is Fig. 2 A-A faces sectional view.
In the present embodiment figure：The raised chambers of 1- noise elimination cavity 2- filter cavity 3- air intake duct 31- air inlets 4- first
Raised chamber 51- dividing plates 511- the first sound attenuation hole 6- escape pipes 7- the second sound attenuation hole the second connecting holes of 8- of 5- second
Embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing pair
The utility model is further detailed.
Referring to shown in Fig. 1 to Fig. 3, a kind of air filter assembly provided for the utility model embodiment, it is by noise elimination cavity
Body 1 and be connected with noise elimination cavity 1 the two parts of filter cavity 2 composition, but in structure two parts be not it is independent, but it is close not
It can divide, be merged completely, it is integrated specific to that can be molded in manufacture, it is combined to one after can also separating
Rise.
In noise elimination cavity 1, noise elimination cavity is provided with air intake duct 3, wherein, one end of air intake duct 3 is positioned at noise elimination
Air inlet 31 outside cavity 1, the other end of air intake duct 3 is the connector communicated with filter cavity 2；The both sides difference of air intake duct 3
The raised chamber 5 of the outer raised chamber 4 and 1 second of company one first, two raised chambers are respectively positioned in noise elimination cavity body；First raised chamber 4 is by thereon
The first connecting hole directly communicated with air intake duct 3, the first connecting hole is that the first raised chamber 4 is connected the hole of part with air intake duct 3
Position；It is provided between second raised chamber 5 and air intake duct 3 on dividing plate 51, dividing plate 51 and offers some first sound attenuation holes 511；First connection
The aperture in hole is more than the aperture of the first sound attenuation hole 511.Now, two raised chambers separately constitute two resonators；Due to two cavitys
Coupling part with air intake duct is of different sizes, therefore so that two raised chambers of the noise waves in air intake duct and shake back and forth, the
One raised chamber 4, because aperture is different, therefore can offset the sound wave of different frequency waveform with the second raised chamber 5, so as to reach noise elimination
Purpose.This programme can eliminate the noise to the sound wave of different frequency, and soundproof effect preferably, improves the comfortableness of vehicle.
In this programme, the air intake duct 3 in noise elimination cavity 1 is to become big horn-type structure to the direction opening of filter cavity 2, with
Improve intake efficiency；In addition, in the present embodiment, air intake duct 3 is inclined upwardly predetermined angle on horizontal direction；Air inlet 31 is located at
The bottom of connector.This angle is preferably between 10 °~18 °；Under this angle, air-flow smooth-going, resistance is smaller；Air-flow is by entering
During air flue, fraction flows through the first raised raised chamber 5 of chamber 4 and second and eliminated the noise, and remaining most of air-flow passes through air inlet
Horn mouth is entered in filter cavity 2, wherein, filter cavity include upper shell 21, lower house 22 and be located at upper shell 21 and under
Filter screen 23 between housing 22, upper shell 21 is connected with air intake duct 3；The outside of lower house 22 is connected with an escape pipe 6, after filtering
Gas through escape pipe flow into engine, clean air is provided for engine.
In this programme, the first raised chamber 4 is located at the middle part of air intake duct, and the second raised chamber 5 is just set to the first raised chamber 4,
To cause air intake duct 3 to carry out noise elimination processing to the waveform of two kinds of frequencies simultaneously.
For further, in this programme, it can be also additionally provided with the air intake duct 3 between the raised chamber 4 of air inlet 31 and first
Multiple second sound attenuation holes 7, the second sound attenuation hole 7 is located in noise elimination cavity body；Air inlet between the first raised raised chamber 5 of chamber 4 and second
One second connecting hole 8 is additionally provided with road 3；Wherein, the aperture of the second connecting hole 8 is more than the aperture of the second sound attenuation hole 7.This design is former
Reason is identical with the scheme of top, now, passes through 8 pairs of two kinds of different frequencies of the sound attenuation hole 7 of filter cavity 2 and second and the second connecting hole
Waveform eliminate the noise.
Specific noise-cancelling theory：One is that the first raised raised chamber 5 of chamber 4 and second on air intake duct 3 plays noise elimination effect, wherein
Second raised chamber 5 is rectangular parallelepiped structure, and is connected by the first sound attenuation hole 511 with air intake duct inwall；First raised chamber 4 is cylinder
Shape structure, is directly communicated, the effect of the two raised chambers to similar resonator, its size is different with structure with air intake duct, so that
Different wave length noise can be reduced；Two are by the second sound attenuation hole 7 and the second connecting hole 8 on air intake duct 3 so that noise waves exist
With the inside roundtrip of noise elimination cavity 1 inside air intake duct, the sound wave of opposite in phase is produced, therefore sound can be cancelled, so as to reach
To noise elimination purpose；Three be that the raised chamber 5 of noise elimination cavity 1 and second is linked together by the second connecting hole 8, now forms one
Greatly, small two resonators, and resonator (noise elimination cavity 1) completely includes small resonator (the second raised chamber 5), two chambers greatly
The silencing cavity of room can eliminate the noise of two frequency bands, and the frequency spectrum that it is eliminated the noise is more wide in range, can cover low frequency in major part
Rate noise (in gas handling system, low frequency noise component is often very big), reaches good noise elimination noise reduction effect.Pass through this several side
Formula can substantially eliminate most noises, can effectively control inflow noise level.Quantity, aperture as aperture
Diameter, perforation fragment position, the arrangement mode of aperture, it is necessary to by Analysis of The Acoustic Fields, it is determined that rational parameter value so that sound deadening capacity
Maximize.
Some one exemplary embodiments of the present utility model are only described by way of explanation above, undoubtedly, for
One of ordinary skill in the art, can be with a variety of in the case of without departing from spirit and scope of the present utility model
Mode is modified to described embodiment.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as
Limitation to the utility model claims.
Claims (7)
1. a kind of air filter assembly, it is characterised in that the filter cavity including noise elimination cavity and with the noise elimination cavity body phase even；
The air intake duct through the noise elimination cavity is provided with the noise elimination cavity body, one end of the air intake duct is positioned at noise elimination cavity
Outer air inlet, the other end of the air intake duct is the connector communicated with the filter cavity；The both sides of the air intake duct point
Not outer to connect one first raised chamber and one second raised chamber, two raised chambers are respectively positioned in the noise elimination cavity body；Described first raised chamber
Directly communicated by the first connecting hole with air intake duct, be provided with dividing plate, the dividing plate and open between the described second raised chamber and air intake duct
Provided with some first sound attenuation holes；The aperture of first connecting hole is more than the aperture of first sound attenuation hole.
2. air filter assembly as claimed in claim 1, it is characterised in that the air intake duct is to become to filter cavity direction opening
Big horn-type structure.
3. air filter assembly as claimed in claim 2, it is characterised in that the air intake duct is inclined upwardly relative to horizontal direction
Predetermined angle；The air inlet is located at the bottom of the connector.
4. air filter assembly as claimed in claim 3, it is characterised in that the air intake duct angle of inclination is between 10 °~18 °.
5. the air filter assembly as described in claim any one of 1-4, it is characterised in that the filter cavity include upper shell,
Lower house and the filter screen being located between the upper shell and the lower house, the upper shell are connected with the air intake duct；Under described
The outside of housing is connected with an escape pipe.
6. air filter assembly as claimed in claim 5, it is characterised in that the described first raised chamber is located in the air intake duct
Portion, the described second raised chamber is just set to the described first raised chamber.
7. air filter assembly as claimed in claim 1, it is characterised in that between the air inlet and the first raised chamber
Multiple second sound attenuation holes are additionally provided with air intake duct, second sound attenuation hole is located in the noise elimination cavity body；It is raised described first
One second connecting hole is additionally provided with air intake duct between chamber and the second raised chamber；The aperture of second connecting hole is more than described second
The aperture of sound attenuation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720180796.2U CN206522207U (en) | 2017-02-27 | 2017-02-27 | air filter assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720180796.2U CN206522207U (en) | 2017-02-27 | 2017-02-27 | air filter assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206522207U true CN206522207U (en) | 2017-09-26 |
Family
ID=59892113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720180796.2U Expired - Fee Related CN206522207U (en) | 2017-02-27 | 2017-02-27 | air filter assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206522207U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625928A (en) * | 2018-06-14 | 2018-10-09 | 东风小康汽车有限公司重庆分公司 | A kind of muffler and automobile |
| CN113217238A (en) * | 2020-01-21 | 2021-08-06 | 中国船舶重工集团公司第七一一研究所 | Air inlet filtering silencer |
-
2017
- 2017-02-27 CN CN201720180796.2U patent/CN206522207U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625928A (en) * | 2018-06-14 | 2018-10-09 | 东风小康汽车有限公司重庆分公司 | A kind of muffler and automobile |
| CN113217238A (en) * | 2020-01-21 | 2021-08-06 | 中国船舶重工集团公司第七一一研究所 | Air inlet filtering silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170926 Termination date: 20200227 |