CN206903725U - A kind of automobile exhaust muffler - Google Patents
A kind of automobile exhaust muffler Download PDFInfo
- Publication number
- CN206903725U CN206903725U CN201720674818.0U CN201720674818U CN206903725U CN 206903725 U CN206903725 U CN 206903725U CN 201720674818 U CN201720674818 U CN 201720674818U CN 206903725 U CN206903725 U CN 206903725U
- Authority
- CN
- China
- Prior art keywords
- sound
- noise reduction
- shell
- inner casing
- cavity
- 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
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model belongs to noise lowering device for automobile technical field and discloses a kind of automobile exhaust muffler, including shell, inner casing, air inlet pipe, blast pipe and breather pipe.The utility model is by setting shell, inner casing double-decker, wherein, the perforating gypsum board with sound-absorbing hole is provided with shell, coordinate the setting of sound-absorbing material layer, the sound wave sent in inner casing can go deep into inside perforating gypsum board along these sound-absorbing hole, rubbing action occurs with material acoustic energy is converted into heat energy, reach the effect of sound absorption sound insulation, it is acoustic wave filter structure common on the market in inner casing, it can reach preliminary noise reduction, coordinate the reinforcing noise reduction of shell, realize maximized blast pipe noise elimination function.
Description
Technical field
The utility model is specifically related to a kind of automobile exhaust muffler, belongs to noise lowering device for automobile technical field.
Background technology
The principle of mobile muffler is exactly that its automobile exhaust pipe is made up of two different pipelines of length, the two pipelines
First separate and cross again.By the length difference of two pipelines is equal to the half of the wavelength for the sound wave that automobile is sent so that two
Row sound wave is cancelled out each other when being interfered in superposition and weakens the sound intensity, reduces sound, existing so as to play the effect of noise reduction
Automotive muffler, voice can not be obstructed from silencer side diffusion, therefore, it is proposed that a kind of automobile exhaust muffler.
Utility model content
The technical problems to be solved in the utility model overcomes the defects of existing, there is provided a kind of automobile exhaust muffler, passes through
Shell, inner casing double-decker are set, wherein, the perforating gypsum board with sound-absorbing hole is provided with shell, coordinates sound-absorbing material layer
Set, the sound wave sent in inner casing can go deep into inside perforating gypsum board along these sound-absorbing hole, and rubbing action occurs with material
Acoustic energy is converted into heat energy, reaches the effect of sound absorption sound insulation, is acoustic wave filter structure common on the market in inner casing, can reach preliminary
Noise reduction, coordinate the reinforcing noise reduction of shell, realize maximized blast pipe noise elimination function, can effectively solve background
The problem of in technology.
In order to solve the above-mentioned technical problem, the utility model provides following technical scheme：
The utility model provides a kind of automobile exhaust muffler, including shell, inner casing, air inlet pipe, blast pipe and ventilation
Pipe, the enclosure are sequentially provided with sound-absorbing material layer and perforating gypsum board, the sound-absorbing material layer respectively with shell and perforation
Plasterboard is bonded, and is provided with cavity between the shell and inner casing, and the cavity inside is provided with being fixedly connected with consolidating for shell and inner casing
Fixed rack, the inner housing inner are sequentially provided with resonant cavity and noise reduction cavity from left to right, and two dividing plates are provided with the noise reduction cavity will
Noise reduction cavity is divided into three chambers, and the air inlet pipe is penetrated the rightmost side chamber for extending to noise reduction cavity, the exhaust by resonant cavity end
Pipe penetrates the leftmost side chamber for extending to noise reduction cavity, the breather pipe connection noise reduction cavity leftmost side from the rightmost side chamber of noise reduction cavity
Chamber and rightmost side chamber.
Preferably, the air inlet pipe and blast pipe, which are located in the center lumen room of noise reduction cavity, is all provided with hole.
Preferably, the perforating gypsum board inwall is provided with entire column type sound-absorbing hole, and the sound-absorbing hole aperture is in 6mm-10mm
Between.
Preferably, the sound-absorbing material layer is made up of glass fabric.
Preferably, air inlet pipe one end connection automobile exhaust pipe.
The beneficial effect that the utility model is reached is：By setting shell, inner casing double-decker, wherein, set in shell
The perforating gypsum board with sound-absorbing hole has been put, has coordinated the setting of sound-absorbing material layer, the sound wave sent in inner casing is along these sound-absorbing hole
It can go deep into inside perforating gypsum board, rubbing action occurs with material is converted into heat energy by acoustic energy, reaches the effect of sound absorption sound insulation,
It is acoustic wave filter structure common on the market in inner casing, can reach preliminary noise reduction, coordinate the reinforcing noise reduction of shell, it is real
Now maximized blast pipe noise elimination function.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.
In the accompanying drawings：
Fig. 1 is a kind of automobile exhaust muffler overall structure diagram described in the utility model embodiment；
Fig. 2 is a kind of automobile exhaust muffler perforating gypsum board structural representation described in the utility model embodiment；
Label in figure：1st, shell；2nd, sound-absorbing material layer；3rd, perforating gypsum board；4th, inner casing；5th, cavity；6th, resonant cavity；7th, drop
Make an uproar chamber；8th, breather pipe；9th, air inlet pipe；10th, blast pipe；11st, hole；12nd, dividing plate；13rd, fixed support；14th, sound-absorbing hole.
Embodiment
Preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein excellent
Select embodiment to be merely to illustrate and explain the utility model, be not used to limit the utility model.
Embodiment：Refer to Fig. 1-2, a kind of automobile exhaust muffler of the utility model, including shell 1, inner casing 4, air inlet
Pipe 9, blast pipe 10 and breather pipe 8, it is characterised in that：Sound-absorbing material layer 2 and perforating gypsum board are sequentially provided with inside the shell 1
3, the sound-absorbing material layer 2 is bonded with shell 1 and perforating gypsum board 3 respectively, and cavity 5 is provided between the shell 1 and inner casing 4,
The inside of cavity 5 is provided with the fixed support 13 for being fixedly connected with shell 1 and inner casing 4, is set successively from left to right inside the inner casing 4
There are resonant cavity 6 and noise reduction cavity 7, divide noise reduction cavity 7 for three chambers, the air inlet provided with two dividing plates 12 in the noise reduction cavity 7
Pipe 9 is penetrated the rightmost side chamber for extending to noise reduction cavity 7, rightmost side chamber of the blast pipe 10 from noise reduction cavity 7 by the end of resonant cavity 6
The leftmost side chamber for extending to noise reduction cavity 7 is penetrated, the breather pipe 8 connects the leftmost side chamber of noise reduction cavity 7 and rightmost side chamber.
Further, the air inlet pipe 9 and blast pipe 10, which are located in the center lumen room of noise reduction cavity 7, is all provided with hole 11.
Further, the inwall of perforating gypsum board 3 is provided with entire column type sound-absorbing hole 14, and the aperture of sound-absorbing hole 14 is in 6mm-
Between 10mm.
Further, the sound-absorbing material layer 2 is made up of glass fabric.
Further, the one end of air inlet pipe 9 connection automobile exhaust pipe.
During use：By setting shell, inner casing double-decker, wherein, it is provided with the perforation gypsum with sound-absorbing hole in shell
Plate, coordinating the setting of sound-absorbing material layer, the sound wave sent in inner casing can go deep into inside perforating gypsum board along these sound-absorbing hole,
Rubbing action occurs with material acoustic energy is converted into heat energy, reach the effect of sound absorption sound insulation, disappear to be common on the market in inner casing
Sound device structure, can reach preliminary noise reduction, coordinate the reinforcing noise reduction of shell, realize maximized blast pipe noise elimination work(
Can, you can reduce the noise of exhaust outlet, can also obstruct the voice diffusion of silencer side, possess good noise reduction, suitably
Promote the use of.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution.All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc.,
It should be included within the scope of protection of the utility model.
Claims (5)
1. a kind of automobile exhaust muffler, including shell (1), inner casing (4), air inlet pipe (9), blast pipe (10) and breather pipe (8),
It is characterized in that：Sound-absorbing material layer (2) and perforating gypsum board (3), the sound-absorbing material layer are sequentially provided with inside the shell (1)
(2) it is bonded respectively with shell (1) and perforating gypsum board (3), cavity (5) is provided between the shell (1) and inner casing (4), it is described
The fixed support (13) for being fixedly connected with shell (1) and inner casing (4) is provided with inside cavity (5), the inner casing (4) is internal from left to right
Resonant cavity (6) and noise reduction cavity (7) are sequentially provided with, the noise reduction cavity (7) is interior to be divided into three provided with two dividing plates (12) by noise reduction cavity (7)
Individual chamber, the air inlet pipe (9) are penetrated the rightmost side chamber for extending to noise reduction cavity (7), the blast pipe by resonant cavity (6) end
(10) leftmost side chamber for extending to noise reduction cavity (7), breather pipe (8) connection are penetrated from the rightmost side chamber of noise reduction cavity (7)
Noise reduction cavity (7) leftmost side chamber and rightmost side chamber.
A kind of 2. automobile exhaust muffler according to claim 1, it is characterised in that：The air inlet pipe (9) and blast pipe
(10) it is all provided with hole (11) in the center lumen room of noise reduction cavity (7).
A kind of 3. automobile exhaust muffler according to claim 1, it is characterised in that：Perforating gypsum board (3) inwall
Entire column type sound-absorbing hole (14) is provided with, sound-absorbing hole (14) aperture is between 6mm-10mm.
A kind of 4. automobile exhaust muffler according to claim 1, it is characterised in that：The sound-absorbing material layer (2) is by glass
Glass fiber cloth into.
A kind of 5. automobile exhaust muffler according to claim 1, it is characterised in that：Air inlet pipe (9) one end connection
Automobile exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720674818.0U CN206903725U (en) | 2017-06-12 | 2017-06-12 | A kind of automobile exhaust muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720674818.0U CN206903725U (en) | 2017-06-12 | 2017-06-12 | A kind of automobile exhaust muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903725U true CN206903725U (en) | 2018-01-19 |
Family
ID=61287638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720674818.0U Expired - Fee Related CN206903725U (en) | 2017-06-12 | 2017-06-12 | A kind of automobile exhaust muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417194A (en) * | 2018-05-02 | 2018-08-17 | 隆鑫通用动力股份有限公司 | Muffler |
| CN114658528A (en) * | 2022-04-06 | 2022-06-24 | 辽宁工程技术大学 | Combined type impedance silencer for automobile exhaust pipe |
-
2017
- 2017-06-12 CN CN201720674818.0U patent/CN206903725U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417194A (en) * | 2018-05-02 | 2018-08-17 | 隆鑫通用动力股份有限公司 | Muffler |
| CN114658528A (en) * | 2022-04-06 | 2022-06-24 | 辽宁工程技术大学 | Combined type impedance silencer for automobile exhaust pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201474756U (en) | Single-row gas pipe muffler for diesel generator | |
| CN205349476U (en) | Diesel engine noise eliminator | |
| CN1515219A (en) | Dust-collector noise silencer | |
| CN205689271U (en) | A kind of electromotor Novel muffler | |
| CN206903725U (en) | A kind of automobile exhaust muffler | |
| CN102853515A (en) | Broadband sound absorption air tube and air opening | |
| CN107120165B (en) | Double exhaust pipe muffler | |
| CN203321782U (en) | Multi-cylinder compressor, single-cylinder compressor, and air-conditioner | |
| CN205477832U (en) | Car exhaust muffler's resonance device | |
| CN205001751U (en) | Circuitous return pipe says silencer | |
| CN209604120U (en) | A kind of automotive air intake pipeline noise elimination structure | |
| CN204716335U (en) | A kind of silencing apparatus for the exhaust of small displacement compact type | |
| CN207540115U (en) | A kind of cabinet air conditioner denoising device | |
| CN207363792U (en) | A kind of extremely low fluid pressure loss composite construction denoising device for engine | |
| CN206360934U (en) | A kind of composite muffler | |
| CN206487543U (en) | A kind of diesel-driven generator exhaust silencer system | |
| CN203584515U (en) | Novel silencer air inlet pipe | |
| CN208315190U (en) | A kind of silencing means of nitrogen making machine | |
| CN204691874U (en) | Novel automobile exhaust pipe | |
| CN205977322U (en) | Novel multifrequency car silencer | |
| CN203604153U (en) | Three-layer serial micro-perforated pipe muffler | |
| CN207131468U (en) | A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler | |
| CN207673402U (en) | A kind of vehicle silencer spacer mechanism | |
| CN206830268U (en) | A kind of automobile engine silencer | |
| CN205714855U (en) | A kind of smoke exhaust fan bend muffler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20180612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |