CN219865196U - Noise elimination exhaust structure - Google Patents
Noise elimination exhaust structure Download PDFInfo
- Publication number
- CN219865196U CN219865196U CN202321339590.1U CN202321339590U CN219865196U CN 219865196 U CN219865196 U CN 219865196U CN 202321339590 U CN202321339590 U CN 202321339590U CN 219865196 U CN219865196 U CN 219865196U
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- China
- Prior art keywords
- exhaust
- bending section
- silencing
- exhaust structure
- noise elimination
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- 238000003379 elimination reaction Methods 0.000 title claims abstract description 20
- 230000008030 elimination Effects 0.000 title claims abstract description 18
- 230000030279 gene silencing Effects 0.000 claims abstract description 45
- 238000005452 bending Methods 0.000 claims abstract description 43
- 238000005192 partition Methods 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 3
- 230000000295 complement effect Effects 0.000 description 8
- 229920000742 Cotton Polymers 0.000 description 2
- 108010066057 cabin-1 Proteins 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model belongs to the technical field of noise elimination, and particularly relates to a noise elimination exhaust structure, which comprises a bent noise elimination exhaust channel; the silencing exhaust channel comprises a plurality of bending sections; one or more partition boards are arranged in each bending section, a plurality of through holes are formed in the board surfaces of the partition boards, and the board surfaces of the partition boards are parallel to the exhaust direction of the bending section where the partition boards are located. By arranging the bent silencing exhaust channel and matching with the porous partition board, physical phenomena such as reflection, refraction and diffraction interference of sound can be realized on the basis of ensuring air circulation, so that effective noise reduction is realized; the noise elimination exhaust structure has simple structure, lower manufacturing difficulty and manufacturing cost and extremely high popularization; and because the noise elimination exhaust structure utilizes the space structure to realize the noise elimination effect, the structure such as metal plate, plastic plate can also reach the effect to effectual increase of service life.
Description
Technical Field
The utility model belongs to the technical field of noise elimination, and particularly relates to a noise elimination exhaust structure.
Background
The existing equipment such as an on-vehicle engine and a generator which is installed in a closed space and is easy to generate noise often has the problem that noise is difficult to process, the noise generated by other parts of the equipment is often only processed by arranging sound-absorbing cotton and the like, and the noise-eliminating effect is also reduced along with the conditions such as soaking and aging of the sound-absorbing cotton.
Therefore, how to use the space structure to realize the noise elimination and ensure the noise elimination effect of the noise equipment used in the closed space of the vehicle-mounted engine, the generator and the like becomes the problem to be solved.
Disclosure of Invention
In order to solve the problem of external noise elimination of noise equipment in the enclosed space, this scheme provides a noise elimination exhaust structure.
The technical scheme adopted by the utility model is as follows:
a silencing exhaust structure comprises a bent silencing exhaust channel; the silencing exhaust channel comprises a plurality of bending sections; one or more partition boards are arranged in each bending section, a plurality of through holes are formed in the board surfaces of the partition boards, and the board surfaces of the partition boards are parallel to the exhaust direction of the bending section where the partition boards are located.
As an alternative or complementary design to the above-described sound-deadening exhaust structure: the silencing exhaust channel comprises a front bending section and a rear bending section; an included angle of 45 degrees is formed between the front bending section and the inlet of the silencing exhaust channel; the outlet of the back bending section and the outlet of the front bending section form an included angle of 45 degrees.
As an alternative or complementary design to the above-described sound-deadening exhaust structure: and the outer channel wall of the silencing exhaust channel is not provided with a through hole structure.
As an alternative or complementary design to the above-described sound-deadening exhaust structure: and through holes are formed in the inner channel wall of the silencing exhaust channel.
As an alternative or complementary design to the above-described sound-deadening exhaust structure: the top and the bottom of each bending section are respectively provided with a plurality of connecting ribs, and the connecting ribs are fixedly connected with the partition plate, the outer channel wall of the bending section and the inner channel wall of the bending section.
As an alternative or complementary design to the above-described sound-deadening exhaust structure: two partition boards are arranged in each bending section.
As an alternative or complementary design to the above-described sound-deadening exhaust structure: the partition boards in the adjacent bending sections are connected or staggered.
As an alternative or complementary design to the above-described sound-deadening exhaust structure: and a butt joint frame is arranged at the inlet of the silencing exhaust channel.
As an alternative or complementary design to the above-described sound-deadening exhaust structure: when the silencing exhaust structure is applied to silencing exhaust of a generator in a vehicle compartment, a silencing exhaust chamber and a generator chamber are arranged in the vehicle compartment; the silencing exhaust structure is arranged in the silencing exhaust chamber, and the generator is arranged in the generator chamber; a communication port is arranged between the silencing exhaust chamber and the generator chamber; the inlet of the silencing exhaust structure is opposite to the communication port; an evacuation mesh communicated with the outside of the carriage is arranged on the side wall of the carriage, and the outlet of the silencing exhaust passage is opposite to the evacuation mesh.
The beneficial effects of the utility model are as follows:
1. according to the scheme, the bending silencing exhaust channel is arranged and matched with the porous partition board, so that physical phenomena such as reflection, refraction and diffraction interference of sound can be realized on the basis of ensuring air circulation, and effective noise reduction is realized;
2. the silencing exhaust structure in the scheme has the advantages of simple structure, low manufacturing difficulty and low manufacturing cost, and extremely high popularization; and because the noise elimination exhaust structure utilizes the space structure to realize the noise elimination effect, the structure such as metal plate, plastic plate can also reach the effect to effectual increase of service life.
Drawings
In order to more clearly illustrate the embodiments of the present solution or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a top view of a sound damping exhaust structure in the present embodiment;
fig. 2 is a perspective view of the muffler and exhaust structure in the present embodiment;
fig. 3 is a block diagram of a vehicle cabin to which the muffler exhaust structure is applied.
In the figure: 1-carriage; 11-generator chamber; 12-exhaust mesh; 2-a sound-deadening exhaust structure; 21-a butt joint frame; 22-connecting ribs; 23-a separator; 24-outer channel walls; 25-inner channel wall.
Detailed Description
The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and the described embodiments are only some embodiments, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any creative effort based on the embodiments of the present embodiment are all within the protection scope of the present solution.
Example 1
As shown in fig. 1 to 3, the present embodiment is designed to have a muffler and exhaust structure including connection ribs 22, a partition plate 23, an outer channel wall 24, a partition plate 23, an inner channel wall 25, and the like.
The inner channel wall 25 comprises at least two inner wall panels, adjacent two inner wall panels being spliced to each other at an angle. The outer channel wall 24 comprises at least two outer wall plates, and two adjacent outer wall plates are spliced with each other at a certain included angle. The outer channel wall 24 is located on the side of the inner channel wall 25 facing away from the bending direction.
A plurality of connecting ribs 22 are respectively connected between the top and the bottom of the inner channel wall 25 and the outer channel wall 24, the connecting ribs 22 can be angle steel, and the connecting ribs 22 can be welded, spliced and the like along the direction vertical to the inner channel wall 25 and the outer channel wall 24.
A bent noise-elimination exhaust passage is formed between the inner passage wall 25 and the outer passage wall 24, and includes a plurality of bent sections; one or more partition plates 23 are arranged in each bending section, a plurality of through holes are formed in the plate surfaces of the partition plates 23, and the plate surfaces of the partition plates 23 are parallel to the exhaust direction of the bending section where the partition plates are located. A plurality of connecting ribs 22 are respectively arranged at the top and the bottom of each bending section, and the connecting ribs 22 are fixedly connected with a baffle plate 23, an outer channel wall 24 of the bending section and an inner channel wall 25 of the bending section.
When the silencing exhaust channel comprises a front bending section and a rear bending section; an included angle of 45 degrees is formed between the front bending section and the inlet of the silencing exhaust channel; the outlet of the back bending section and the outlet of the front bending section form an included angle of 45 degrees. Two partition plates 23 can be arranged in each bending section, and the partition plates 23 in the adjacent bending sections are connected or staggered; a docking frame 21 is provided at the inlet of the muffling exhaust passage.
No through-hole structure is arranged on the outer channel wall 24 of the silencing exhaust channel; and the inner passage wall 25 of the sound deadening exhaust passage may be provided with a through hole.
In use, when the sound-deadening exhaust structure 2 is applied to sound-deadening exhaust of a generator of a vehicle compartment 1:
a silencing exhaust chamber and a generator chamber 11 are arranged in the vehicle compartment 1; the silencing exhaust structure 2 is arranged in the silencing exhaust chamber, and the generator is arranged in the generator chamber 11; a communication port is arranged between the silencing exhaust chamber and the generator chamber 11; the inlet of the sound-deadening exhaust structure 2 is opposite to the communication port; an evacuation mesh communicating with the outside of the vehicle cabin 1, for which the outlet of the noise-elimination exhaust passage is right, is provided on the side wall of the vehicle cabin 1.
The principle of noise cancellation in the above structure is: noise in the generator chamber 11 enters the silencing exhaust channel through the communication port, and the silencing exhaust channel is bent, so that the noise is necessarily reflected at least once in the silencing exhaust channel, and the noise is matched with the porous partition plate 23, so that physical phenomena such as reflection, refraction, diffraction interference and the like of sound waves occur, and the effective reduction of the noise is realized on the basis of ensuring air circulation.
The silencing exhaust structure 2 in the embodiment has the advantages of simple structure, low manufacturing difficulty and manufacturing cost and extremely high popularization; in addition, the silencing exhaust structure 2 realizes silencing effect by utilizing a space structure, and can achieve effect by using structures such as a metal plate, a plastic plate and the like, thereby effectively prolonging the service life.
The above examples are presented for the purpose of illustration only and are not intended to be limiting of the embodiments; it is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present technology.
Claims (9)
1. The utility model provides a noise elimination exhaust structure which characterized in that: comprises a bent silencing exhaust channel; the silencing exhaust channel comprises a plurality of bending sections; one or more partition boards (23) are arranged in each bending section, a plurality of through holes are formed in the board surfaces of the partition boards (23), and the board surfaces of the partition boards (23) are parallel to the exhaust direction of the bending section where the partition boards are located.
2. The muffler exhaust structure according to claim 1, wherein: the silencing exhaust channel comprises a front bending section and a rear bending section; an included angle of 45 degrees is formed between the front bending section and the inlet of the silencing exhaust channel; the outlet of the back bending section and the outlet of the front bending section form an included angle of 45 degrees.
3. The muffler exhaust structure according to claim 1, wherein: the outer channel wall (24) of the sound-deadening exhaust channel is not provided with a through hole structure.
4. The muffler exhaust structure according to claim 1, wherein: the inner channel wall (25) of the noise elimination exhaust channel is provided with a through hole.
5. The muffler exhaust structure according to claim 1, wherein: a plurality of connecting ribs (22) are respectively arranged at the top and the bottom of each bending section, and the connecting ribs (22) are fixedly connected with a baffle plate (23), an outer channel wall (24) of the bending section and an inner channel wall (25) of the bending section.
6. The muffler exhaust structure according to claim 1, wherein: two partition boards (23) are arranged in each bending section.
7. The muffler exhaust structure according to claim 1, wherein: the partition plates (23) in the adjacent bending sections are connected or staggered.
8. The muffler exhaust structure according to claim 1, wherein: a butt joint frame (21) is arranged at the inlet of the silencing exhaust channel.
9. The muffler exhaust structure according to any one of claims 1 to 8, wherein: when the silencing exhaust structure (2) is applied to silencing exhaust of a generator of a vehicle compartment (1), a silencing exhaust chamber and a generator chamber (11) are arranged in the vehicle compartment (1); the silencing exhaust structure (2) is arranged in the silencing exhaust chamber, and the generator is arranged in the generator chamber (11); a communication port is arranged between the silencing exhaust chamber and the generator chamber (11); the inlet of the silencing exhaust structure (2) is opposite to the communication port; the side wall of the carriage (1) is provided with an emptying mesh communicated with the outside of the carriage (1), and the outlet of the silencing exhaust passage is opposite to the emptying mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321339590.1U CN219865196U (en) | 2023-05-29 | 2023-05-29 | Noise elimination exhaust structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321339590.1U CN219865196U (en) | 2023-05-29 | 2023-05-29 | Noise elimination exhaust structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865196U true CN219865196U (en) | 2023-10-20 |
Family
ID=88332228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321339590.1U Active CN219865196U (en) | 2023-05-29 | 2023-05-29 | Noise elimination exhaust structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865196U (en) |
-
2023
- 2023-05-29 CN CN202321339590.1U patent/CN219865196U/en active Active
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