CN211258850U - A noise eliminator and car for car intake pipe - Google Patents
A noise eliminator and car for car intake pipe Download PDFInfo
- Publication number
- CN211258850U CN211258850U CN201922000243.6U CN201922000243U CN211258850U CN 211258850 U CN211258850 U CN 211258850U CN 201922000243 U CN201922000243 U CN 201922000243U CN 211258850 U CN211258850 U CN 211258850U
- Authority
- CN
- China
- Prior art keywords
- sector
- cavity
- fan
- shaped
- intake pipe
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a noise eliminator and car for car intake pipe, this noise eliminator locates the connecting bend in the intake pipe including the cover at least, locate the fan ring casing on connecting bend surface, fan ring casing constitutes the anechoic chamber with the connecting bend cooperation, the anechoic chamber includes a plurality of grades of fan ring cavity units, each fan ring cavity unit is including relative and cut off first fan cavity and the second fan cavity that sets up, the anechoic chamber sets up to two kinds of fan-shaped structures that cut off each other, the anechoic chamber of two kinds of types is mutually supported, the noise cancelling effect preferred in the (1000 additionally-used 3000) frequency band, and be applicable to and install in the motorcycle type that the space is restricted.
Description
Technical Field
The utility model relates to an auto-parts field, in particular to a noise eliminator and car for car intake pipe.
Background
The application of the turbocharger to the engine can improve the dynamic property and the economical efficiency of the automobile, but can also seriously affect the NVH performance (noise, vibration and harshness performance indexes) of the automobile. The exhaust gas turbocharger is more applied to diesel vehicles before, and gasoline vehicles are more commonly used at present, particularly passenger vehicles, so that the NVH performance of the turbocharger is considered to be optimized by various large vehicle enterprises.
The typical operating speed range of the exhaust gas turbocharger is one hundred thousand to twenty thousand revolutions per minute, and the airflow noise energy generated by the high-speed rotation of the impeller at the compressor side is mainly concentrated in the frequency band of [ 1000-. The turbocharger end also takes into account the effect of high temperatures on the muffler frequency. Therefore, the test results for the impedance tube should be in [800- & lt2600 ]. In the past, most of the annular mufflers are made into annular mufflers along pipelines, and the design frequency is generally higher than 1000 Hz.
It is well known to those skilled in the art that the lower the frequency the more space is required for the muffler. However, parts are arranged more closely in some current vehicle types, and other parts, such as another pipeline, are arranged on the periphery of the air inlet pipe. Therefore, the space of the muffler is limited, and a proper circular ring-shaped sound attenuation cavity cannot be arranged in the range of 270 degrees.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defect among the prior art, to the motorcycle type that the peripheral space of intake pipe is not enough, provide a noise eliminator and a car for car intake pipe, realize effectual noise elimination effect.
In order to solve the above technical problem, the utility model provides a following first technical scheme:
the utility model provides a noise eliminator for car intake pipe, noise eliminator is located including the cover at least connecting bend in the intake pipe, locate the fan ring casing on connecting bend surface, fan ring casing with connecting bend cooperation constitutes the anechoic chamber, the anechoic chamber includes a plurality of grades of fan ring cavity units, each fan ring cavity unit is including relative and cut off first fan-shaped chamber and the second fan-shaped chamber that sets up.
In some preferred embodiments, the central angle of the first sector-shaped cavity is (80-100) °, and the central angle of the second sector-shaped cavity is (245-265) °.
In some preferred embodiments, the diameter of the first sector cavity in the muffling chamber is tapered.
In some preferred embodiments, the first sector chamber proximate the intake end of the intake pipe has the largest diameter.
In some preferred embodiments, the first sector cavity diameter is greater than the second sector cavity diameter.
In some preferred embodiments, the first sector cavity has a central angle of 90 ° and the second sector cavity has a central angle of 255 °.
In some preferred embodiments, the muffler device further includes a first partition plate disposed between two adjacent sector-shaped annular cavity units, and a second partition plate disposed between the first sector-shaped cavity and the second sector-shaped cavity.
In some preferred embodiments, the connecting elbow portions of the first and second sector-shaped cavities are provided with a plurality of silencing holes.
The utility model discloses still provide following second technical scheme:
an automobile comprises the muffler device.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
the utility model discloses a noise eliminator for automobile intake pipe, this noise eliminator includes at least that the connecting bend pipe of cover locating on the intake pipe, locate the fan ring shape shell on connecting bend pipe surface, fan ring shape shell and connecting bend pipe cooperation constitute the anechoic chamber, the anechoic chamber includes a plurality of grades of fan ring shape cavity units, each fan ring shape cavity unit includes relative and cut off the first fan-shaped chamber and the second fan-shaped chamber that sets up, this noise eliminator sets up the anechoic chamber into two kinds of fan-shaped structures of cutting off each other, the anechoic chamber of two kinds of types is mutually supported, noise eliminating effect preferred in the (1000-;
furthermore, in one fan-shaped cavity unit, the central angle of the first fan-shaped cavity is (80-100) °, the central angle of the second fan-shaped cavity is (245-265) °, the diameter of the first fan-shaped cavity is larger than that of the second fan-shaped cavity, the fan-shaped cavity unit is suitable for being installed in a vehicle type with limited space, in addition, when the fan-shaped cavity unit is installed on the side with larger space, the second fan-shaped cavity unit is installed on the side with smaller space, and under the condition that the space is limited, the noise reduction effect in the frequency band of [ 800-.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a perspective view of a muffler device for an intake pipe of an automobile according to one embodiment;
FIG. 2 is a cross-sectional view of section A-A of FIG. 1;
FIG. 3 is a cross-sectional view of section B-B of FIG. 1;
fig. 4 is a diagram showing a change in transmission loss after the muffler device according to the first embodiment is mounted on the vehicle according to the first embodiment.
Fig. 5 is a schematic view of the second muffling apparatus of the present embodiment assembled in an automobile.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "X axis", "Y axis", "Z axis", "vertical", "parallel", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following describes in detail a muffler device for an intake pipe of an automobile and a concrete structure of an automobile, which are protected by the present invention, with reference to fig. 1 to 5.
Example 1
As shown in fig. 1 to 3, the present embodiment provides a muffler device 100 for an intake pipe of an automobile, where the muffler device 100 at least includes a connecting bent pipe 1 sleeved on the intake pipe (not shown), and a fan-shaped annular housing 2 disposed on a surface of the connecting bent pipe 1, and the fan-shaped annular housing 2 and the connecting bent pipe 1 cooperate to form a muffling cavity.
The muffling cavity comprises a plurality of stages of fan-shaped annular cavity units 4, and the adjacent fan-shaped annular cavity units 4 are arranged in a close fit manner. Each sector-shaped cavity unit 4 includes a first sector-shaped cavity 41 and a second sector-shaped cavity 42 that are opposite and separated from each other, that is, the first sector-shaped cavity 41 and the second sector-shaped cavity 42 are located in the same hollow circular ring. In this embodiment, there are 7 sector-shaped cavity units 4, so the silencing strength includes 7 first sector-shaped cavities 41 and 7 second sector-shaped cavities 42, and total 14 cavities.
The muffler device 100 further includes a plurality of first partition plates 5 disposed between two adjacent sector-shaped cavity units 4, and a plurality of second partition plates 6 disposed between the first sector-shaped cavity 41 and the second sector-shaped cavity 42.
In order to make the noise in the air inlet pipe enter the silencing cavity, the corresponding connecting bent pipe 1 parts in the first fan-shaped cavity 41 and the second fan-shaped cavity are provided with a plurality of silencing holes 11.
In the anechoic chamber, the diameter of the first sector 41 is tapered and the diameter of the second sector chamber 42 is equal everywhere. Preferably, the diameter of the first sector chamber 41 near the intake end of the intake pipe is largest to improve the sound-deadening efficiency.
The sum of the central angle of the first sector cavity and the central angle of the second sector cavity does not exceed 360 degrees, the central angle of the first sector cavity is smaller, and the central angle of the second sector cavity is larger. Generally, the central angle of the first fan-shaped cavity is (80-100) °, and the central angle of the second fan-shaped cavity is (245-260) °. Preferably, the central angle of the first sector cavity is preferably 90 ° and the central angle of the second sector cavity is preferably 255 °.
As shown in fig. 4, through tests, the transmission loss of the muffler in the frequency band of [ 1000-.
The utility model provides a noise eliminator for car intake pipe, this noise eliminator locates the connecting bend in the intake pipe including the cover at least, locate the fan annular shell on connecting bend surface, fan annular shell constitutes the anechoic chamber with the connecting bend cooperation, the anechoic chamber includes a plurality of grades of fan annular cavity units, each fan annular cavity unit is including relative and cut off first fan-shaped chamber and the second fan-shaped chamber that sets up, this noise eliminator sets up the anechoic chamber into two kinds of fan-shaped structures that cut off each other, the anechoic chamber of two kinds of mutually supports, the noise cancelling effect preferred in the [1000 additionally-3000 ] frequency band.
Example 2
As shown in fig. 5, the present embodiment provides an automobile including the muffler device 100 according to embodiment 1, the muffler device 100 being mounted on an intake pipe 200 of the automobile, and the space for mounting the muffler device being very limited. For a specific structure of the muffler device, please refer to the corresponding description in embodiment 1, which is not repeated in this embodiment.
During assembly, the first fan-shaped cavity is large in radius and small in central angle, so that the occupied space is not large actually, and the first fan-shaped cavity can be arranged on the large side of the space; although the central angle of the second fan-shaped cavity is larger, the radius is smaller, the occupied space is actually not large, and the second fan-shaped cavity can be installed on the side with smaller space, so that the technical effect of better noise reduction effect in the frequency band of [ 800-.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a noise eliminator for car intake pipe, its characterized in that, noise eliminator is located including the cover at least connecting bend in the intake pipe, locate the fan ring shape shell on connecting bend surface, fan ring shape shell with connecting bend cooperation constitutes the noise elimination chamber, the noise elimination chamber includes a plurality of grades of fan ring shape cavity units, each fan ring shape cavity unit is including relative and cut off first fan-shaped chamber and the second fan-shaped chamber that sets up.
2. The muffling device of claim 1, wherein the first sector-shaped cavity has a central angle of 80 ° to 100 ° and the second sector-shaped cavity has a central angle of 245 ° to 265 °.
3. A sound-damping arrangement according to claim 1 or 2, characterised in that the diameter of the first sector-shaped chamber of the chamber is tapered.
4. The muffling device of claim 3, wherein the first sector-shaped cavity proximate the air intake end of the air intake tube has a largest diameter.
5. The muffling device of any one of claims 1, 2, or 4, wherein the first sector cavity diameter is greater than the second sector cavity diameter.
6. The muffling device of claim 5, wherein the first sector-shaped cavity has a central angle of 90 ° and the second sector-shaped cavity has a central angle of 255 °.
7. The muffling device of claim 6, further comprising a first baffle disposed between two adjacent sector-ring cavity units, and a second baffle disposed between the first sector-cavity and the second sector-cavity.
8. A sound-damping arrangement according to claim 1, 2, 4, 6 or 7, characterised in that the respective connecting elbow portions of the first and second sector-shaped chambers are provided with damping holes.
9. An automobile, characterized in that it comprises a muffler device according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000243.6U CN211258850U (en) | 2019-11-19 | 2019-11-19 | A noise eliminator and car for car intake pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000243.6U CN211258850U (en) | 2019-11-19 | 2019-11-19 | A noise eliminator and car for car intake pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211258850U true CN211258850U (en) | 2020-08-14 |
Family
ID=71958318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922000243.6U Active CN211258850U (en) | 2019-11-19 | 2019-11-19 | A noise eliminator and car for car intake pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211258850U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109923A (en) * | 2020-08-25 | 2022-03-01 | 上海汽车集团股份有限公司 | Silencer and car |
| CN114109923B (en) * | 2020-08-25 | 2024-05-10 | 上海汽车集团股份有限公司 | Silencer and automobile |
-
2019
- 2019-11-19 CN CN201922000243.6U patent/CN211258850U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109923A (en) * | 2020-08-25 | 2022-03-01 | 上海汽车集团股份有限公司 | Silencer and car |
| CN114109923B (en) * | 2020-08-25 | 2024-05-10 | 上海汽车集团股份有限公司 | Silencer and automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10907517B2 (en) | Silencer and vehicle engine including same | |
| CN110388245B (en) | Muffler comprising a Helmholtz resonator and vehicle comprising such a muffler | |
| CN211258850U (en) | A noise eliminator and car for car intake pipe | |
| CN210033567U (en) | Composite large-displacement diesel engine exhaust silencer | |
| JP5684031B2 (en) | Silencer for turbo compressor and arrangement method of silencer | |
| CN110748506A (en) | Noise elimination device for turbocharger | |
| CN106285874A (en) | A kind of compound muffler for vehicle | |
| CN103195549B (en) | A kind of silencer muffler partition plate and silencing apparatus | |
| CN212296552U (en) | Two-stroke four-cylinder piston engine silencer for small and medium-sized unmanned aerial vehicle | |
| JPH09324711A (en) | Silencer for air suction | |
| CN210217866U (en) | Silencer and vehicle | |
| CN210889493U (en) | Noise elimination device for turbocharger | |
| CN111370733A (en) | Fuel cell system and intercooler thereof | |
| CN202117737U (en) | Exhaust silencer for high-capacity automobile | |
| CN219570177U (en) | Sound insulation device and vehicle | |
| CN111042962A (en) | Air inlet silencer of engine | |
| CN217761118U (en) | Silencer and exhaust system | |
| CN216077368U (en) | Muffler pipe, supercharged engine and car | |
| CN210738646U (en) | Muffler device of excavator | |
| CN214533152U (en) | Silencer assembly | |
| CN219826951U (en) | Muffler | |
| CN114109923B (en) | Silencer and automobile | |
| CN220791388U (en) | Muffler device, air inlet system and vehicle | |
| CN216588884U (en) | Silencer and vehicle | |
| CN219529115U (en) | Silencer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211210 Address after: 401135 No. 618 Liangjiang Avenue, Longxing Town, Yubei District, Chongqing Patentee after: Chongqing Jin Kang Sai Li Si New Energy Automobile Design Institute Co.,Ltd. Address before: 402260 No.1 Jiujiang Avenue, Shuangfu New District, Jiangjin District, Chongqing Patentee before: CHONGQING BRANCH, DFSK AUTOMOBILE Co.,Ltd. |
|
| TR01 | Transfer of patent right |