CN218030330U - Silencer with valve and resistance sheet - Google Patents
Silencer with valve and resistance sheet Download PDFInfo
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- CN218030330U CN218030330U CN202222444921.XU CN202222444921U CN218030330U CN 218030330 U CN218030330 U CN 218030330U CN 202222444921 U CN202222444921 U CN 202222444921U CN 218030330 U CN218030330 U CN 218030330U
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- muffler
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Abstract
The utility model discloses a silencer of valve and resistance piece is equipped with belongs to car silencer technical field, including intake pipe, anterior silencer barrel, connecting pipe, middle part silencer barrel and the tail pipe that communicates in proper order, the inside from the top down of anterior silencer barrel is equipped with anterior silencer intake pipe, anterior silencer middle part pipe and anterior silencer outlet duct in proper order, and the air current flows to anterior silencer intake pipe, anterior silencer middle part pipe, anterior silencer outlet duct and connecting pipe in proper order and muffles at the in-process that the air current flows through the intake pipe, and the surface of tail pipe is opened along its length direction has a plurality of sound outlet just sound outlet department is equipped with the resistance piece. The device can inhibit low-frequency noise by using a passive valve structure under the condition that the volume of the silencer is limited; meanwhile, various silencing holes arranged in the front silencer cylinder effectively solve the backpressure problem of the exhaust system, and the resistance sheet effectively solves the low-rotating-speed booming problem of the exhaust system.
Description
Technical Field
The utility model belongs to the technical field of the car silencer, concretely relates to silencer of valve and resistance piece is equipped with.
Background
In recent years, under the strong support of the country, new energy vehicles are developed vigorously, and compared with traditional vehicles, new energy vehicles have more complex power generation systems and some or more power supply systems, such as an engine system, a hydrogen energy system and the like. This results in a need to install multiple systems in a limited chassis space, which results in a large reduction in the space used by the exhaust muffler system, a reduction in the length of the muffler used by the exhaust muffler system, a reduction in the path of the exhaust gas flow, and an inability to meet the requirements for muffling in the exhaust system due to the volume of the muffler.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a silencer of valve and resistance piece is equipped with to solve a plurality of systems of the limited chassis space installation of new energy automobile, the space of utilizing of single system reduces more, and this just leads to being connected silencer length with the tail pipe and can shortening, and the noise elimination route of air current circulation also can shorten, and its volume can not satisfy the demand problem of exhaust noise elimination system.
The utility model provides a silencer of valve and resistance piece is equipped with, is including intake pipe, anterior silencer barrel, connecting pipe, middle part silencer barrel and the tail pipe that communicates in proper order, the inside from the top down of anterior silencer barrel is equipped with anterior silencer intake pipe, anterior silencer middle part pipe and anterior silencer outlet duct in proper order, and the air current flows to through the intake pipe in proper order anterior silencer intake pipe, anterior silencer middle part pipe, anterior silencer outlet duct and the connecting pipe just silences at the in-process that the air current flows, the surface of tail pipe is opened along its length direction has a plurality of phonate holes just phonate hole department is equipped with the resistance piece.
Preferably, the front silencer cylinder is internally and fixedly connected with a first partition plate and a second partition plate in sequence from the air inlet pipe to the direction of the connecting pipe, the internal space of the front silencer cylinder is sequentially divided into a first cavity, a second cavity and a third cavity which are communicated through the first partition plate and the second partition plate, the front silencer air inlet pipe, the front silencer middle pipe and the front silencer air outlet pipe all penetrate through the first partition plate and the second partition plate, one end of the front silencer air inlet pipe is communicated with the air inlet pipe, the other end of the front silencer air inlet pipe is communicated with the third cavity, the two ends of the front silencer middle pipe are respectively communicated with the first cavity and the third cavity, a passive valve is arranged at the position where one end of the front silencer air outlet pipe is communicated with the first cavity and the communication position, the other end of the front silencer air outlet pipe is communicated with the connecting pipe, a front silencer air inlet pipe silencing hole, a middle silencer silencing hole and a front silencer air outlet hole are respectively formed in pipe bodies of the front silencer air inlet pipe, the front silencer middle pipe and the front silencer air outlet pipe in the second cavity, and sound absorption cotton is filled in the second cavity.
Preferably, the surfaces of the first partition plate and the second partition plate are provided with silencing holes so as to enable the first chamber, the second chamber and the third chamber to be in a communicated state.
Preferably, the middle silencer cylinder is communicated with a middle silencer muffler, two ends of the middle silencer muffler are respectively communicated with the connecting pipe and the tail pipe, a plurality of middle silencer muffler silencing holes are densely formed in the surface of the middle silencer muffler along the axial direction of the middle silencer muffler, and sound absorption cotton is filled between the outer wall of the middle silencer muffler and the inner wall of the middle silencer cylinder.
Preferably, the resistance piece includes resistance piece frame and resistance piece micropore, the resistance piece frame is the arc structure and fixes on the surface of tail pipe, the surface of resistance piece frame is opened has a plurality of resistance piece micropores that communicate with the tail pipe.
Preferably, both ends of the front silencer cylinder are fixedly connected with front silencer end covers, both ends of the middle silencer cylinder are fixedly connected with middle silencer end covers, the surface of the connecting pipe is fixedly connected with a front lifting hook, and the surface of the tail pipe is fixedly connected with a tail pipe lifting hook.
The utility model discloses a have following advantage:
the air flow flows to the front silencer air inlet pipe, the front silencer middle pipe, the front silencer air outlet pipe and the connecting pipe in sequence through the air inlet pipe and silences in the flowing process of the air flow, when the air flow is large, the passive valve is pushed open in the first cavity to enter the front silencer air outlet pipe, the air flow circulation path is prolonged, the remaining time for removing noise is saved, the silencing effect is better, when the air flow is small, the passive valve cannot be pushed open to play a role in suppressing low-frequency noise, part of the air flow overflows into the second cavity from the front silencer air inlet pipe silencing hole, the middle silencer silencing hole and the front silencer air outlet pipe silencing hole, silencing cotton in the second cavity can absorb more energy, finally, all the air flow flows to the front silencer air outlet pipe from the front silencer air outlet pipe silencing hole, flows into the middle silencer cylinder body from the front silencer air outlet pipe to perform silencing again, the silencing effect is better, finally enters the tail pipe, and the resistance sheet on the tail pipe enables the air flow to form a tail pipe when the air flow passes through the micropores of the resistance sheet, so that the standing wave problem caused by the long length is eliminated; the arrangement of the silencing holes on the first partition plate and the second partition plate, the silencing holes of the front silencer air inlet pipe, the silencing holes of the middle silencer silencing pipe and the silencing holes of the front silencer air outlet pipe effectively solves the backpressure problem of the exhaust system, and the resistance pieces are added on the tail pipes to effectively solve the problem of low-rotating-speed rumbling of the exhaust system.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the internal structure of the structure shown in fig. 1.
Fig. 3 is a schematic structural view of the resistance sheet of the present invention.
The labels in the figures are:
1. an air inlet pipe; 2. a front muffler barrel; 3. a connecting pipe; 4. a front muffler end cover; 5. a middle muffler barrel; 6. a middle muffler end cover; 7. a tail pipe; 8. a resistance sheet; 9. a tail pipe lifting hook; 10. a front hook; 11. a front muffler intake pipe; 12. a silencing hole of the front silencer air inlet pipe; 13. a first separator; 14. a second separator; 15. the air outlet pipe of the front silencer; 16. a silencing hole of an air outlet pipe of the front silencer; 17. a passive valve; 18. a middle muffler pipe; 19. a silencing hole of the middle silencer silencing pipe; 20. a muffler hole of the middle pipe of the front muffler; 21. a front muffler middle tube; 22. a third chamber; 23. a first chamber; 24. a second chamber; 25. a resistance sheet frame; 26. the resistance sheet is microporous.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided to help those skilled in the art to more fully, accurately and deeply understand the concept and technical solutions of the present invention, through the description of the embodiments with reference to the accompanying drawings.
As shown in fig. 1-3, a silencer equipped with valve and resistance piece, including intake pipe 1, anterior silencer barrel 2, connecting pipe 3, middle part silencer barrel 5 and tail pipe 7 that communicate in proper order, the inside from the top down of anterior silencer barrel 2 is equipped with anterior silencer intake pipe 11, anterior silencer middle part pipe 21 and anterior silencer outlet duct 15 in proper order, and the air current flows to in proper order through intake pipe 1 anterior silencer intake pipe 11, anterior silencer middle part pipe 21 and anterior silencer outlet duct 15 and connecting pipe 3 just silences at the in-process that the air current flows, the surface of tail pipe 7 is opened along its length direction has a plurality of sound outlet just sound outlet department is equipped with resistance piece 8.
The muffler comprises a front muffler barrel 2, a first partition plate 13 and a second partition plate 14 are fixedly connected to the inside of the front muffler barrel 2 from an air inlet pipe 1 to a connecting pipe 3 in sequence, the inner space of the front muffler barrel 2 is divided into a first cavity 23, a second cavity 24 and a third cavity 22 which are communicated in sequence through the first partition plate 13 and the second partition plate 14, the front muffler air inlet pipe 11, a front muffler middle pipe 21 and a front muffler air outlet pipe 15 all penetrate through the first partition plate 13 and the second partition plate 14, one end of the front muffler air inlet pipe 11 is communicated with the air inlet pipe 1, the other end of the front muffler air inlet pipe 11 is communicated with the third cavity 22, two ends of the front muffler middle pipe 21 are communicated with the first cavity 23 and the third cavity 22 respectively, a passive valve 17 is arranged at the position where one end of the front muffler air outlet pipe 15 is communicated with the first cavity 23, the other end of the front muffler air outlet pipe 15 is communicated with the connecting pipe 3, a front muffler hole 12, a middle pipe 21 and a front muffler hole 19 are formed in a pipe body of the front muffler 15, and a sound absorption hole 16 is filled in the second cavity 24 respectively. The first partition plate 13 and the second partition plate 14 are each provided with a sound-deadening hole on a surface thereof so that the first chamber 23, the second chamber 24, and the third chamber 22 are in a communicated state.
The air flow enters the third chamber 22 through the air inlet pipe 1, because the front silencer middle pipe 21 is communicated with the third chamber 22, the air flow discharged into the third chamber 22 enters the first chamber 23 through the front silencer middle pipe 21, the surfaces of the first partition plate 13 and the second partition plate 14 are all provided with silencing holes so that the first chamber 23, the second chamber 24 and the third chamber 22 are in a communicated state, part of the air flow enters the second chamber 24 through the silencing holes on the second partition plate 14, part of the energy is absorbed by silencing cotton in the second chamber 24, part of the air flow enters the first chamber 23 along the front silencer middle pipe 21, when the air flow is high, the passive valve 17 is pushed away to enter the front silencer air outlet pipe 15 in the first chamber 23, when the air flow is low, the passive valve 17 cannot be pushed away to suppress low-frequency noise, when the air flow is low, part of the air flow enters the front silencer air outlet pipe 12, the middle silencer silencing holes 19 and the front silencer outlet pipe 16, and the front silencer outlet pipe 24 can absorb more energy by the silencing cotton in the front silencer outlet pipe 5, and finally, the silencer tail pipe can flow out of the front silencer barrel body 5.
The middle silencer cylinder 5 is internally communicated with a middle silencer muffler 18, two ends of the middle silencer muffler 18 are respectively communicated with the connecting pipe 3 and the tail pipe 7, a plurality of middle silencer muffler holes 19 are densely arranged on the surface of the middle silencer muffler 18 along the axial direction of the middle silencer muffler 18, and sound absorption cotton is filled between the outer wall of the middle silencer muffler 18 and the inner wall of the middle silencer cylinder 5.
The air flow passing through the front silencer cylinder 2 flows to the middle silencer silencing pipe 18 for silencing again, so that the silencing effect is better, and the noise of an automobile exhaust system is effectively removed.
Resistance piece 8 includes resistance piece frame 25 and resistance piece micropore 26, resistance piece frame 25 is the arc structure and fixes on the surface of tail pipe 7, resistance piece frame 25's surface is opened has a plurality of resistance piece micropores 26 with the sound outlet hole intercommunication.
The longer length of the tail pipe can cause the problems of larger low-speed roaring sound and poorer fourth-order and sixth-order noises of the automobile running under the acceleration working condition, and the resistance sheet micropores 26 on the resistance sheet 8 can form a resonant cavity when the airflow passes through the resistance sheet micropores 26, thereby eliminating the standing wave problem caused by the long tail pipe and the like.
The two ends of the front silencer cylinder 2 are fixedly connected with front silencer end covers 4, the two ends of the middle silencer cylinder 5 are fixedly connected with middle silencer end covers 6, the surface of the connecting pipe 3 is fixedly connected with a front lifting hook 10, and the surface of the tail pipe 7 is fixedly connected with a tail pipe lifting hook 9.
The front silencer end cover 4 enables the front silencer cylinder 2 to be in a sealed state, the middle silencer end cover 6 enables the middle silencer cylinder 5 to be in a sealed state, and the front lifting hook 10 and the tail pipe lifting hook 9 can be fixed on an automobile chassis for the whole device to avoid being separated from the automobile chassis.
The working principle is as follows: the air flow enters the third chamber 22 through the air inlet pipe 1, the front silencer middle pipe 21 is communicated with the third chamber 22, the air flow discharged into the third chamber 22 enters the first chamber 23 through the front silencer middle pipe 21, the surfaces of the first partition plate 13 and the second partition plate 14 are provided with silencing holes so that the first chamber 23, the second chamber 24 and the third chamber 22 are in a communicated state, part of the air flow enters the second chamber 24 through the silencing holes on the second partition plate 14, part of the air flow enters the first chamber 23 along the front silencer middle pipe 21, when the air flow is high, the passive valve 17 is pushed away to enter the front silencer air outlet pipe 15 in the first chamber 23, when the air flow is low, the passive valve 17 cannot be pushed away to suppress low-frequency noise, when the air flow is low, part of the air flow enters the front silencer air outlet pipe 15 from the front silencer silencing holes 12, the middle silencer silencing holes 19 and the front silencer air outlet pipe 16, the air flow enters the second silencing cavity 24 through the silencing holes, the silencing holes 24, the tail pipe 8 is high-step noise absorption effect is achieved, and the tail pipe is formed by the tail pipe 8, and the tail pipe of the silencer, when the air flow is low-noise is high-noise-absorbing effect is achieved, the device can inhibit low-frequency noise by using a passive valve structure under the condition that the volume of the silencer is limited; the arrangement of the silencing holes on the first partition plate 13 and the second partition plate 14, the silencing hole 12 of the front silencer air inlet pipe, the silencing hole 19 of the middle silencer silencing pipe and the silencing hole 16 of the front silencer air outlet pipe effectively solves the backpressure problem of the exhaust system, and the resistance sheet 8 is added on the tail pipe 7 to effectively solve the low-speed sound-producing problem of the exhaust system.
The present invention has been described in detail with reference to the accompanying drawings, and it is apparent that the present invention is not limited by the above embodiments, and various insubstantial modifications of the inventive concept and technical solutions of the present invention or direct application of the inventive concept and technical solutions to other applications without modification are within the scope of the present invention.
Claims (6)
1. A muffler with a valve and a resistance plate is characterized in that: including intake pipe (1), anterior silencer barrel (2), connecting pipe (3), middle part silencer barrel (5) and tail pipe (7) that communicate in proper order, the inside from the top down of anterior silencer barrel (2) is equipped with anterior silencer intake pipe (11), anterior silencer middle part pipe (21) and anterior silencer outlet duct (15) in proper order, and the air current flows to in proper order through intake pipe (1) anterior silencer intake pipe (11), anterior silencer middle part pipe (21) and anterior silencer outlet duct (15) and connecting pipe (3) just carry out the noise elimination at the in-process that the air current flows, the surface of tail pipe (7) is opened along its length direction has a plurality of sound outlet just sound outlet department is equipped with resistance piece (8).
2. A muffler incorporating a valve and resistance plate as claimed in claim 1, wherein: the silencer is characterized in that a first partition plate (13) and a second partition plate (14) are fixedly connected to the inside of the front silencer cylinder body (2) from the air inlet pipe (1) to the direction of the connecting pipe (3) in sequence and the inner space of the front silencer cylinder body (2) is sequentially divided into a first cavity (23), a second cavity (24) and a third cavity (22) which are communicated through the first partition plate (13) and the second partition plate (14), the front silencer air inlet pipe (11), the front silencer middle pipe (21) and the front silencer air outlet pipe (15) all penetrate through the first partition plate (13) and the second partition plate (14), one end of the front silencer air inlet pipe (11) is communicated with the air inlet pipe (1), the other end of the front silencer air inlet pipe is communicated with the third cavity (22), the two ends of the front silencer middle pipe (21) are communicated with the first cavity (23) and the third cavity (22) respectively, a driven pipe (17) is arranged at the position where one end of the front silencer air outlet pipe (15) is communicated with the first cavity (23), the other end of the front silencer pipe (15) is communicated with the connecting pipe (3), a silencer opening valve (12) is arranged in the front silencer opening hole of the front silencer opening hole (12) of the front silencer air inlet pipe (11), and the front silencer cavity (12), and the front silencer outlet pipe (24) are arranged in the front silencer cavity (12), and the front silencer air inlet pipe (11), and the front silencer inlet pipe (22), and the front silencer air outlet pipe (11), A silencing hole (19) of the middle silencer silencing pipe and a silencing hole (16) of the front silencer air outlet pipe, and sound absorption cotton is filled in the second chamber (24).
3. A muffler incorporating a valve and a resistive flap as claimed in claim 2, wherein: the surfaces of the first partition plate (13) and the second partition plate (14) are provided with silencing holes so as to enable the first chamber (23), the second chamber (24) and the third chamber (22) to be in a communicated state.
4. A muffler incorporating a valve and a resistive flap as claimed in claim 3, wherein: the middle silencer is characterized in that a middle silencer muffler pipe (18) is communicated with the inside of the middle silencer cylinder (5), two ends of the middle silencer muffler pipe (18) are communicated with the connecting pipe (3) and the tail pipe (7) respectively, a plurality of middle silencer muffler pipe muffling holes (19) are densely formed in the surface of the middle silencer muffler pipe (18) along the axial direction of the middle silencer muffler pipe, and sound absorbing cotton is filled between the outer wall of the middle silencer muffler pipe (18) and the inner wall of the middle silencer cylinder (5).
5. The muffler with the valve and the resistive strip mounted thereon as claimed in claim 4, wherein: resistance piece (8) are including resistance piece frame (25) and resistance piece micropore (26), resistance piece frame (25) are the arc structure and fix the surface at tail pipe (7), resistance piece micropore (26) that have a plurality of and play phonate hole intercommunication are opened to the surface of resistance piece frame (25).
6. The muffler with valve and resistive flap of claim 5, wherein: the utility model discloses a silencer, including front silencer barrel (2), middle part silencer barrel (5), the both ends fixedly connected with front silencer end cover (4) of front silencer barrel (2), the both ends fixedly connected with middle part silencer end cover (6) of middle part silencer barrel (5), the fixed surface of connecting pipe (3) is connected with anterior lifting hook (10), the fixed surface of tail pipe (7) is connected with tail pipe lifting hook (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222444921.XU CN218030330U (en) | 2022-09-15 | 2022-09-15 | Silencer with valve and resistance sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222444921.XU CN218030330U (en) | 2022-09-15 | 2022-09-15 | Silencer with valve and resistance sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218030330U true CN218030330U (en) | 2022-12-13 |
Family
ID=84355113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222444921.XU Active CN218030330U (en) | 2022-09-15 | 2022-09-15 | Silencer with valve and resistance sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218030330U (en) |
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2022
- 2022-09-15 CN CN202222444921.XU patent/CN218030330U/en active Active
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