CN208594988U - It eliminates the noise and wraps - Google Patents
It eliminates the noise and wraps Download PDFInfo
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- CN208594988U CN208594988U CN201820818280.0U CN201820818280U CN208594988U CN 208594988 U CN208594988 U CN 208594988U CN 201820818280 U CN201820818280 U CN 201820818280U CN 208594988 U CN208594988 U CN 208594988U
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- outlet portion
- shell
- noise
- end cover
- packet
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Abstract
A kind of noise elimination packet, it includes the air inlet pipe and escape pipe for having the shell of first end cover and second end cover and being connected to the shell, the shell is equipped with internal cavity, the air inlet pipe is connected with the internal cavity, the escape pipe includes the first outlet portion through the first end cover, the second outlet portion through the second end cover and the shared outlet portion for being connected to first outlet portion with the middle part in second outlet portion, and the shared outlet portion is connected with the internal cavity.So set, the utility model is eliminated the noise, packet improves design freedom not by the excessive limitation of its inner space and bent tube technique；In addition, sharing a part of main body by the first, second outlet portion, the ingenious extension of escape pipe pipeline is realized, reduce material utilization amount, reduce material cost.
Description
Technical field
The utility model relates to a kind of noise elimination packets, belong to the technical field of automobile component.
Background technique
Noise can be divided into that low-frequency noise (basic frequency be lower than 300hz), (basic frequency is in 300- for mid-frequency noise by frequency
800hz), high-frequency noise (basic frequency is higher than 800hz).In order to realize the improvement of low-frequency noise, traditional means include:
Escape pipe is lengthened, but is limited by space and technique, it is difficult to be formed.When meeting technique as shown in Figure 1:, escape pipe
8,9 have exceeded the envelope eliminated the noise and wrapped；And when meeting noise elimination packet space, pipeline then can not technological forming.
Caliber is reduced, but sacrifices back pressure performance；Back pressure surplus is often limited, and it is little that caliber reduces amplitude.
Utility model content
The purpose of this utility model is to provide one kind in the limited situation in space, had not only been able to satisfy back pressure performance, but also energy
It is effectively improved the noise elimination packet of low-frequency noise problem.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of noise elimination packet comprising have first end
It covers the shell with second end cover and is connected to the air inlet pipe and escape pipe of the shell, the shell is equipped with internal cavity, institute
It states air inlet pipe to be connected with the internal cavity, the escape pipe includes the first outlet portion for running through the first end cover, runs through
Second outlet portion of the second end cover and the middle part for being connected to first outlet portion and second outlet portion share
Outlet portion, the shared outlet portion are connected with the internal cavity.
As the further improved technical solution of the utility model, the shell is equipped with shell, the first end cover and institute
State the two sides that second end cover is separately fixed at the shell.
As the further improved technical solution of the utility model, inner wall of the shared outlet portion close to the shell.
As the further improved technical solution of the utility model, first outlet portion has with second outlet portion
Identical length.
As the further improved technical solution of the utility model, the air inlet pipe connection is on the housing.
As the further improved technical solution of the utility model, the noise elimination packet includes intracorporal positioned at the inner chamber
At least one baffle, the baffle is to support the escape pipe.
As the further improved technical solution of the utility model, the baffle supports the shared outlet portion.
Compared to the prior art, the utility model noise elimination packet low frequency noise reduction capability is suitable with traditional design, and is not eliminated the noise
The excessive limitation for wrapping inner space and bent tube technique, improves design freedom；In addition, total by the first, second outlet portion
With a part of main body, the ingenious extension of escape pipe pipeline is realized, reduce material utilization amount, reduce material cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of tradition noise elimination packet.
Fig. 2 is the schematic diagram of the utility model noise elimination packet.
Specific embodiment
It please join shown in Fig. 2, the utility model discloses a kind of noise elimination packet 100 comprising has first end cover 11 and second
The shell 1 of end cap 12 and the air inlet pipe 2 and escape pipe 3 for being connected to the shell 1.The shell 1 is equipped with internal cavity 10, institute
Air inlet pipe 2 is stated to be connected with the internal cavity 10.The escape pipe 3 includes through the first outlet portion of the first end cover 1
31, through the second outlet portion 32 of the second end cover 2 and first outlet portion 31 and second outlet portion are connected to
The shared outlet portion 33 at 32 middle part, the shared outlet portion 33 are connected with the internal cavity 10.
The shell 1 is equipped with shell 13, and the first end cover 11 is separately fixed at the shell with the second end cover 12
13 two sides.In the utility model embodiment illustrated, the air inlet pipe 2 is connected on the shell 13.Certainly, at it
In his embodiment, the air inlet pipe 2 can be located at any position of shell 1.On the whole, the noise elimination packet 100 of the utility model
It is the structure that a kind of Dan Jinshuan goes out formula.
The packet 100 of eliminating the noise includes several baffles in the internal cavity 10, and the baffle is described to support
Escape pipe 3.In the utility model embodiment illustrated, several baffles include spaced first baffle 41,
Two baffles 42, third baffle 43 and fourth gear plate 44.First, second baffle 41,42 is to support first outlet
Portion 31, the third, fourth gear plate 43,44 one side are to support second outlet portion 32, on the other hand to support
State shared outlet portion 33.
Inner wall of the shared outlet portion 33 close to the shell 13.First outlet portion 31 and second outlet portion
It is apparent inconsistent not will lead to the appearance of two sides tail pipe noise for 32 length having the same.
Compared to the prior art, if the noise elimination packet 100 of the utility model is exceeded in 300hz or less low-frequency noise, can lead to
Cross could be adjusted to optimize to the length and diameter of escape pipe 3.For example, reducing first outlet portion 31 and second outlet
Portion 32, allows acoustical behavior to improve.But limited back pressure target and pneumatic noise, adjustable space are smaller.In addition, the utility model disappears
Sound packet 100 can be by sharing outlet portion 33 come the ingenious length for extending entire escape pipe 3.Share the structure not office in outlet portion 33
It is limited to the quantity and outlet pipe diameter of elbow, diameter can be finely tuned according to boundary and back pressure, and length generally allows in space and back pressure
In the range of more length it is better；And consider standing wave noise problem that may be present, it can appropriate adjustment length.Share after, material at
This reduction, and the lengthening of escape pipe 3 can also solve the problems, such as low-frequency noise that may be present.
In addition, above embodiments are merely to illustrate the utility model and not limit technical side described in the utility model
Case, understanding of this description should be based on persons of ordinary skill in the field, although this specification is referring to above-mentioned
Embodiment has been carried out detailed description to the utility model, still, those skilled in the art should understand that, affiliated skill
The technical staff in art field still can be modified or replaced equivalently the utility model, and all not depart from this practical new
The technical solution and its improvement of the spirit and scope of type, should all cover in the scope of the claims of the utility model.
Claims (7)
1. a kind of noise elimination packet comprising there is the shell of first end cover and second end cover and be connected to the air inlet pipe of the shell
With escape pipe, the shell is equipped with internal cavity, and the air inlet pipe is connected with the internal cavity, it is characterised in that: described
Escape pipe includes the first outlet portion through the first end cover, the second outlet portion through the second end cover and is connected to
The shared outlet portion at the middle part in first outlet portion and second outlet portion, the shared outlet portion and the internal cavity
It is connected.
2. as described in claim 1 packet of eliminating the noise, it is characterised in that: the shell is equipped with shell, the first end cover with it is described
Second end cover is separately fixed at the two sides of the shell.
3. packet as claimed in claim 2 of eliminating the noise, it is characterised in that: inner wall of the shared outlet portion close to the shell.
4. packet as described in claim 1 of eliminating the noise, it is characterised in that: first outlet portion has phase with second outlet portion
Same length.
5. packet as claimed in claim 2 of eliminating the noise, it is characterised in that: the air inlet pipe connection is on the housing.
6. packet as described in claim 1 of eliminating the noise, it is characterised in that: the noise elimination packet is intracorporal extremely including being located at the inner chamber
A few baffle, the baffle is to support the escape pipe.
7. packet as claimed in claim 6 of eliminating the noise, it is characterised in that: the baffle supports the shared outlet portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820818280.0U CN208594988U (en) | 2018-05-30 | 2018-05-30 | It eliminates the noise and wraps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820818280.0U CN208594988U (en) | 2018-05-30 | 2018-05-30 | It eliminates the noise and wraps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208594988U true CN208594988U (en) | 2019-03-12 |
Family
ID=65600802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820818280.0U Active CN208594988U (en) | 2018-05-30 | 2018-05-30 | It eliminates the noise and wraps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208594988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552756A (en) * | 2018-05-30 | 2019-12-10 | 上海天纳克排气系统有限公司 | Silencing bag |
-
2018
- 2018-05-30 CN CN201820818280.0U patent/CN208594988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552756A (en) * | 2018-05-30 | 2019-12-10 | 上海天纳克排气系统有限公司 | Silencing bag |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |