CN214221294U - High-frequency noise reduction silencer for automobile - Google Patents
High-frequency noise reduction silencer for automobile Download PDFInfo
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- CN214221294U CN214221294U CN202023299219.6U CN202023299219U CN214221294U CN 214221294 U CN214221294 U CN 214221294U CN 202023299219 U CN202023299219 U CN 202023299219U CN 214221294 U CN214221294 U CN 214221294U
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- punching
- silencing
- noise reduction
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- frequency noise
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Abstract
The utility model discloses an automobile high-frequency noise reduction silencer, which comprises a cylinder body and end covers arranged at two sides of the cylinder body, wherein the cylinder body comprises an inner cylinder and an outer cylinder; two groups of punching pipes are arranged in the inner cylinder, are respectively and fixedly connected with the end covers at two sides and are respectively communicated with the air inlet pipe and the air outlet pipe, and are arranged on the same horizontal line with a space between the two pipes; two groups of partition plates are arranged in parallel in the cylinder body, the partition plates are perpendicular to the punching pipes, and each group of punching pipes penetrates through the partition plates adjacent to the punching pipes; each group of punching pipes is provided with a plurality of silencing holes in the circumferential direction between the partition plate and the end cover, and silencing parts are arranged among the punching pipes, the end cover, the inner cylinder and the partition plate. The cost can be reduced, the air tightness and the heat insulation capability are improved, and the noise elimination capability is improved.
Description
Technical Field
The utility model relates to an auto-parts technical field especially relates to a silencer of making an uproar falls in car high frequency.
Background
The silencer is a key part for reducing the exhaust noise of an automobile engine, can eliminate the noise by reducing exhaust pulsating pressure and reduce the influence of the noise on the daily life of people, but most of the existing silencer shells of automobiles are single-layer plate welded cylinders or single-layer plate rolled shell cylinders, so that the cost is high, the air tightness is poor, the heat insulation performance is low, quality problems easily occur in the using and manufacturing processes, and the silencing capability of the existing high-frequency silencer cannot meet the silencing requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a silencer of making an uproar falls in car to solve the problem that above-mentioned prior art exists, can reduce cost, improve gas tightness and thermal-insulated ability, avoid appearing quality problems.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides an automobile high-frequency noise reduction silencer, which comprises a cylinder body and end covers arranged at two sides of the cylinder body, wherein the cylinder body comprises an inner cylinder and an outer cylinder; two groups of punching pipes are arranged in the inner cylinder, are respectively and fixedly connected with the end covers at two sides and are respectively communicated with the air inlet pipe and the air outlet pipe, and are arranged on the same horizontal line with a space between the two punching pipes; two groups of partition plates are arranged in parallel in the cylinder body, the partition plates are perpendicular to the punching pipes, and each group of punching pipes penetrates through the partition plates adjacent to the punching pipes; each group of punching pipes are provided with a plurality of silencing holes in the circumferential direction between the partition plate and the end cover, and silencing parts are arranged among the punching pipes, the end cover, the inner cylinder and the partition plate.
Preferably, the inner cylinder is made of SUS 441; the material of the outer cylinder is SUS 439.
Preferably, the partition board is provided with a plurality of through holes.
Preferably, the sound deadening portion is filled with sound deadening cotton.
Preferably, two sets of the opposite one side of punching pipe is provided with the horn mouth, and two sets of the distance between the adjacent tip of punching pipe is 40 mm.
Preferably, the diameter of the punching pipe is 55-65 mm.
Preferably, the diameter of the silencing hole is 4-6 mm, the circumferential hole interval of the silencing hole is 6-8 mm, and the axial hole interval of the silencing hole is 6-8 mm.
The utility model discloses a following technological effect: the utility model muffles the high-frequency noise through the muffling part formed between the punching pipe, the end cover, the inner cylinder and the clapboard, and simultaneously the air layer of the punching pipe and the fiber of the muffling cotton in the muffling part move oppositely, so that the sound energy is dissipated, and the muffling effect is achieved; and the utility model discloses a shell is rolled up through adopting double-deck sheet material to the barrel, has improved the gas tightness and the heat-proof quality of barrel, and the outer SUS439 of using, the inlayer uses SUS441, when keeping gas tightness and heat-proof quality, the cost is reduced, the utility model discloses it is strong to fall the noise damping ability of making an uproar, and the gas tightness is strong, and heat-proof quality is high and low cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in 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 for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of a high-frequency noise reduction muffler of the present invention;
wherein, 1 is the barrel, 2 is the punching hole pipe, 3 is the baffle, 4 is the end cover, 5 is the amortization portion.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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 order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The utility model provides an automobile high-frequency noise reduction silencer, which comprises a cylinder body 1 and end covers 4 arranged at two sides of the cylinder body 1, wherein the cylinder body 1 comprises an inner cylinder and an outer cylinder, and the material of the inner cylinder is SUS 441; the material of outer cylinder is SUS439, and barrel 1 is made by two kinds of material reels, has improved the leakproofness and the thermal-insulated ability of device.
The inner tube is inside to be provided with two sets of towards hole pipe 2, two sets of towards hole pipe 2 respectively with the end cover 4 fixed connection of both sides and respectively with intake pipe and outlet duct intercommunication, two sets of towards hole pipe 2 set up on same water flat line and there is the interval between the two, two sets of towards hole pipe 2 relative one side be provided with the horn mouth, and the distance between the adjacent tip of two sets of towards hole pipe 2 is 40 mm.
Two groups of partition plates 3 are arranged in parallel in the cylinder body 1, a plurality of through holes are formed in the partition plates 3, the partition plates 3 are perpendicular to the punching tubes 2, and each group of punching tubes 2 penetrates through the partition plates 3 adjacent to the punching tubes; every group punches hole pipe 2 and has all seted up a plurality of bloop in the circumference between baffle 3 and end cover 4, and the diameter that punches hole pipe 2 is 55 ~ 65 mm. The diameter of the silencing hole is 4-6 mm, the circumferential hole interval of the silencing hole is 6-8 mm, and the axial hole interval of the silencing hole is 6-8 mm. A silencing part 5 is arranged among the punching pipe 2, the end cover 4, the inner cylinder and the partition plate 3, and the silencing part 5 is filled with silencing cotton. The sound absorption characteristic of the sound attenuation part 5 is utilized to continuously absorb sound passing through the pipeline, when sound waves enter the silencer, due to viscous resistance and frictional resistance, an air layer of the punching pipe in the silencer moves relative to fibers, a part of sound energy is dissipated, and the sound attenuation effect is achieved.
The utility model discloses a theory of operation does: the air current that the car produced gets into high frequency muffler, through the cotton contact of bloop and amortization, plays the noise elimination used, because the barrel adopts double-deck material to roll up the shell, gas tightness and heat-proof quality are better, and the sound wave is difficult for spreading out through the barrel, has increaseed the cotton contact frequency of amortization in sound wave and the amortization, has realized the more efficient amortization of making an uproar of falling.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (7)
1. The utility model provides a silencer of making an uproar falls in car high frequency which characterized in that: the device comprises a cylinder body (1) and end covers (4) arranged on two sides of the cylinder body (1), wherein the cylinder body (1) comprises an inner cylinder and an outer cylinder; two groups of punching pipes (2) are arranged in the inner cylinder, the two groups of punching pipes (2) are respectively and fixedly connected with the end covers (4) at two sides and are respectively communicated with the air inlet pipe and the air outlet pipe, the two groups of punching pipes (2) are arranged on the same horizontal line, and a space is formed between the two groups of punching pipes; two groups of partition plates (3) are arranged in parallel in the cylinder body (1), the partition plates (3) are perpendicular to the punching tubes (2), and each group of punching tubes (2) penetrates through the partition plates (3) adjacent to the punching tubes; each group of punching pipes (2) are circumferentially provided with a plurality of silencing holes between the partition plate (3) and the end cover (4), and silencing parts (5) are arranged between the punching pipes (2), the end cover (4), the inner cylinder and the partition plate (3).
2. The high-frequency noise reduction muffler for the automobile according to claim 1, wherein: the inner cylinder is made of SUS 441; the material of the outer cylinder is SUS 439.
3. The high-frequency noise reduction muffler for the automobile according to claim 1, wherein: the partition plate (3) is provided with a plurality of through holes.
4. The high-frequency noise reduction muffler for the automobile according to claim 1, wherein: the silencing part (5) is filled with silencing cotton.
5. The high-frequency noise reduction muffler for the automobile according to claim 1, wherein: two sets of towards hole pipe (2) relative one side is provided with the horn mouth, and two sets of towards the distance between the adjacent tip of hole pipe (2) is 40 mm.
6. The high-frequency noise reduction muffler for the automobile according to claim 1, wherein: the diameter of the punching pipe (2) is 55-65 mm.
7. The high-frequency noise reduction muffler for the automobile according to claim 1, wherein: the diameter of the silencing hole is 4-6 mm, the circumferential hole interval of the silencing hole is 6-8 mm, and the axial hole interval of the silencing hole is 6-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023299219.6U CN214221294U (en) | 2020-12-31 | 2020-12-31 | High-frequency noise reduction silencer for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023299219.6U CN214221294U (en) | 2020-12-31 | 2020-12-31 | High-frequency noise reduction silencer for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214221294U true CN214221294U (en) | 2021-09-17 |
Family
ID=77707460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023299219.6U Active CN214221294U (en) | 2020-12-31 | 2020-12-31 | High-frequency noise reduction silencer for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214221294U (en) |
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2020
- 2020-12-31 CN CN202023299219.6U patent/CN214221294U/en active Active
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