CN215719050U - Silencer and vehicle - Google Patents
Silencer and vehicle Download PDFInfo
- Publication number
- CN215719050U CN215719050U CN202121551958.1U CN202121551958U CN215719050U CN 215719050 U CN215719050 U CN 215719050U CN 202121551958 U CN202121551958 U CN 202121551958U CN 215719050 U CN215719050 U CN 215719050U
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- Prior art keywords
- chamber
- partition plate
- muffler
- cylinder
- sound
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- 230000003584 silencer Effects 0.000 title abstract description 13
- 238000005192 partition Methods 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims 1
- 230000001743 silencing effect Effects 0.000 abstract description 3
- 239000011358 absorbing material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model provides a silencer and a vehicle, and relates to the technical field of vehicles. The muffler of the present invention comprises: the cylinder is formed by a first partition plate and a second partition plate at intervals into a first chamber, a second chamber and a third chamber; the air inlet pipe extends into the third chamber from the outside of the cylinder after passing through the first chamber, the first partition plate, the second chamber and the second partition plate, and the position of the third chamber is blocked; the core pipe penetrates through the first partition plate and the second partition plate to communicate the first chamber and the third chamber; the exhaust pipe is communicated with the outside of the cylinder after passing through the first chamber, the first partition plate, the second chamber, the second partition plate and the third chamber; and a U-shaped pipe located in the first chamber and communicating the core pipe and the exhaust pipe. The silencer has a good silencing effect.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a silencer and a vehicle.
Background
Mufflers can be classified into reactive mufflers and resistive mufflers according to the muffling structure. The reactive muffler utilizes reactive structures such as a resonant cavity, an expansion chamber and the like to perform noise elimination, and utilizes that when sound waves pass through a section with abrupt impedance change during propagation, a part of the sound waves propagating along a pipeline are reflected back to a sound source, so that a phase difference of 180 degrees is generated between the sound waves propagating forwards and reflected waves on different pipeline sections, mutual interference is realized, the sound waves are reflected and interfered, and sound energy is reduced, thereby achieving the effect of noise elimination. The resistive muffler utilizes the mutual friction between sound waves and a sound-deadening material when the sound waves are transmitted in the sound-deadening material to convert the sound energy into heat energy, and reduces the noise through the sound-deadening material to achieve the purpose of sound deadening.
The prior silencer has poor laughing sound effect, and if accumulated water is in the shell of the silencer, the shell can not be removed and is easy to rust, thus influencing the use.
SUMMERY OF THE UTILITY MODEL
An object of the first aspect of the present invention is to provide a muffler, which solves the problem of poor muffling effect of the mufflers in the prior art.
Another object of the first aspect of the present invention is to solve the problem of the prior art muffler that is susceptible to corrosion inside.
It is an object of a second aspect of the utility model to provide a vehicle incorporating the muffler.
In particular, the present invention provides a muffler comprising:
the cylinder is formed by a first partition plate and a second partition plate at intervals into a first chamber, a second chamber and a third chamber;
the air inlet pipe extends into the third chamber from the outside of the cylinder after passing through the first chamber and the first partition plate, the second chamber and the second partition plate, and is blocked at the position of the third chamber;
the core pipe penetrates through the first partition plate and the second partition plate to communicate the first chamber and the third chamber;
the exhaust pipe is communicated with the outside of the cylinder after passing through the first chamber, the first partition plate, the second chamber, the second partition plate and the third chamber; and
a U-shaped tube located within the first chamber and communicating the core tube and the exhaust tube.
Optionally, still include frame type jar, frame type jar is located in the third chamber, and set up the outside at the blast pipe, the blast pipe is being located frame type jar position department is provided with a plurality of first aperture in order to with frame type jar intercommunication.
Optionally, the first partition plate and the second partition plate are provided with a plurality of second small holes, so that the first chamber, the second chamber and the third chamber are communicated.
Optionally, the air inlet pipe is provided with a plurality of third small holes at the position of the second chamber so as to be communicated with the second chamber.
Optionally, the core tube is provided with a plurality of fourth small holes at the position of the first chamber to communicate with the first chamber.
Optionally, sound absorbing material is disposed within the first chamber and the frame-shaped tank.
Optionally, the sound absorbing material is fiberglass.
Optionally, the device further comprises an upper shell and a lower shell, and the cylinder is arranged in an accommodating space formed by the upper shell and the lower shell.
Optionally, the bottom of the lower shell is further provided with a drain hole.
In particular, the utility model also provides a vehicle which may comprise a muffler as described above.
The silencer of the utility model attenuates the sound wave capability by the reflection and interference of the sudden change of the impedance of a plurality of cavities to the sound wave with corresponding frequency and the friction consumption of the sound absorption material, thereby achieving the good silencing effect to low, medium and high frequency noises. The silencer can effectively eliminate the fundamental frequency noise and certain specific frequency noise of the engine, and has good application effect.
The silencer can also comprise an upper shell and a lower shell, and the cylinder is arranged in an accommodating space formed by the upper shell and the lower shell. The split lines of the upper shell and the lower shell are positioned in the same plane. The bottom of the lower shell is also provided with a drain hole. Through the wash port of casing low point department down, the inside ponding of barrel is effectively discharged, avoids the barrel corrosion, prolongs the life of silencer.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a muffler 100 according to one embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural view of a muffler 100 according to one embodiment of the present invention. As a specific example of the present invention, the muffler 100 in this example may include a cylinder 10, an inlet pipe 20, a core pipe 80, an outlet pipe 30, and a U-shaped pipe 40. The cylinder 10 is partitioned by a first partition plate 50 and a second partition plate 60 to form a first chamber 11, a second chamber 12 and a third chamber 13. The air inlet pipe 20 extends into the third chamber 13 from the outside of the cylinder 10 after passing through the first chamber 11, the first partition plate 50, the second chamber 12 and the second partition plate 60, and is blocked at the position of the third chamber 13. The core tube 80 communicates the first chamber 11 and the third chamber 13 through the first partition plate 50 and the second partition plate 60. The exhaust pipe 30 is communicated with the outside of the cylinder 10 after passing through the first chamber 11, the first partition plate 50, the second chamber 12, the second partition plate 60 and the third chamber 13. The U-shaped pipe 40 is located in the first chamber 11 and communicates the core pipe 80 and the exhaust pipe 30.
In the muffler 100 of the present embodiment, the first partition plate 50 and the second partition plate 60 partition the cylinder 10 into the first chamber 11, the second chamber 12 and the third chamber 13, and then the arrangement of the inlet pipe 20, the core pipe 80, the U-shaped pipe 40 and the exhaust pipe 30 is performed, so that the muffler 100 of the present embodiment has a very good muffling effect.
Specifically, as a specific embodiment of the present invention, the muffler 100 of the present embodiment may further include a frame-shaped tank 70, the frame-shaped tank 70 being located in the third chamber 13 and being disposed outside the exhaust pipe 30, the exhaust pipe 30 being provided with a plurality of first small holes 71 at positions where the frame-shaped tank 70 is located to communicate with the frame-shaped tank 70.
Specifically, the sound absorbing material is disposed in the frame-shaped tank 70 of this embodiment, when a part of sound waves in the exhaust pipe 30 is guided out through the outlet pipe, and another part of sound waves enters the frame-shaped tank 70 through the small holes 80, part of sound energy is consumed through the friction of the hole wall, and is consumed by the friction of the sound absorbing material in the frame-shaped tank 70, so as to weaken the medium and high frequencies in the sound waves, and improve the sound absorbing effect.
As a specific embodiment of the present invention, the first partition plate 50 and the second partition plate 60 are provided with a plurality of second small holes (not shown) so as to communicate the first chamber 11, the second chamber 12 and the third chamber 13. The intake duct 20 is provided with a plurality of third small holes 21 at the position of the second chamber 12 to communicate with the second chamber 12. The core tube 80 is provided with a plurality of fourth small holes 81 at positions located in the first chamber 11 to communicate with the first chamber 11. Sound absorbing materials are provided in the first chamber 11 and the frame-type tank 70. The sound absorbing material is fiberglass. As other examples, the sound-absorbing material may be other materials having better sound-absorbing properties.
The muffler 100 of the embodiment effectively eliminates the fundamental frequency noise and certain specific frequency noise of the engine, and has good application effect.
Specifically, the internal structure of the muffler 100 includes a resistive muffling structure and a resistive muffling structure, the air flow enters the muffler 100 through the air inlet pipe 20, the air flow enters the second chamber 12 through the small holes in the air inlet pipe 20, the impedance of the cross section changes suddenly, the sound waves are reflected and interfered, and the sound energy is consumed by mutual cancellation. Meanwhile, when sound waves enter the small holes, partial sound energy is converted into heat energy and then consumed due to the friction and damping action of the radial wall, and the heat energy is greatly used for reducing frequency-reducing noise. The air flow entering the second chamber 12 respectively enters and exits the first chamber 11 and the third chamber 13 through the small holes of the first partition plate and the second partition plate, the sound waves are reduced by the friction consumption of the sound absorption material in the first chamber 11, the middle and high frequency sound waves are weakened, the high frequency harsh components in the sound waves are reduced, and the air in the small holes of the first partition plate 50 and the second partition plate 60 reciprocates like a piston under the pressure of the sound waves. Because the air has certain mass, the air resists the movement speed change caused by sound waves, partial sound energy is changed into heat energy and then consumed due to the friction and the damping action of the radial wall, low-frequency noise is reduced again, the section impedance is suddenly changed, the sound waves are reflected and interfered, and the mutually offset sound energy is consumed again. The sound waves in the third chamber 13 enter the core pipe 80, a part of the sound waves enter the first chamber 11 through the small holes in the first chamber 11, the sound energy is consumed by the sound-absorbing material in the first chamber 11 again, the sound waves in the first chamber 11 also enter the core pipe 80 through the small holes in the core pipe 80, and the sound waves in the core pipe 80 enter the exhaust pipe 30 after rotating for 180 degrees through the U-shaped pipe 40. One part of sound waves are led out through the exhaust pipe 30, the other part of sound waves enter and exit the frame-shaped tank 70 through the small holes in the exhaust pipe 30, part of sound energy is consumed through the friction action of the hole walls, the sound energy is consumed through the friction of the sound absorption materials in the frame-shaped tank 70, the middle and high frequencies in the sound waves are weakened again, and finally the sound waves are led out through the exhaust pipe 30. The silencer 100 attenuates the sound wave capacity by the reflection and interference of the sudden change of the impedance of a plurality of cavities to the sound wave with corresponding frequency and the friction consumption of the sound absorption material, thereby achieving the good silencing effect to low, medium and high frequency noises. The muffler 100 can effectively eliminate the fundamental frequency noise and certain specific frequency noise of the engine, and has good application effect.
As a specific embodiment of the present invention, the muffler 100 of the present embodiment may further include an upper shell and a lower shell (not shown in the drawings), and the cylinder 10 is disposed in a receiving space formed between the upper shell and the lower shell. The split lines of the upper shell and the lower shell are positioned in the same plane. The bottom of the lower shell is also provided with a water outlet. Through the drain hole (not shown in the figure) of casing low point department down, the inside ponding of barrel 10 is effectively discharged, avoids barrel 10 corrosion, prolongs the life of silencer 100.
As a specific embodiment of the present invention, the present embodiment also provides a vehicle that may include the muffler 100 described above.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A muffler, comprising:
the cylinder is formed by a first partition plate and a second partition plate at intervals into a first chamber, a second chamber and a third chamber;
the air inlet pipe extends into the third chamber from the outside of the cylinder after passing through the first chamber and the first partition plate, the second chamber and the second partition plate, and is blocked at the position of the third chamber;
a core tube passing through the first partition plate and the second partition plate to communicate the first chamber and the third chamber;
the exhaust pipe is communicated with the outside of the cylinder after passing through the first chamber, the first partition plate, the second chamber, the second partition plate and the third chamber; and
a U-shaped tube located within the first chamber and communicating the core tube and the exhaust tube.
2. The muffler of claim 1,
still include frame type jar, frame type jar is located in the third cavity, and set up the outside at the blast pipe, the blast pipe is lieing in frame type jar position department is provided with a plurality of first aperture with frame type jar intercommunication.
3. The muffler of claim 1,
the first partition plate and the second partition plate are respectively provided with a plurality of second small holes, so that the first chamber, the second chamber and the third chamber are communicated.
4. The muffler of claim 1,
the air inlet pipe is provided with a plurality of third small holes at the position of the second chamber so as to be communicated with the second chamber.
5. The muffler of claim 1,
the core tube is provided with a plurality of fourth small holes at the position of the first chamber so as to be communicated with the first chamber.
6. The muffler of claim 2,
and sound absorption materials are arranged in the first cavity and the frame-shaped tank.
7. The muffler of claim 6,
the sound absorption material is glass fiber.
8. The muffler of claim 1,
the cylinder is arranged in an accommodating space formed by the upper shell and the lower shell.
9. The muffler of claim 8,
the bottom of the lower shell is also provided with a drain hole.
10. A vehicle, characterized by comprising a muffler as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121551958.1U CN215719050U (en) | 2021-07-08 | 2021-07-08 | Silencer and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121551958.1U CN215719050U (en) | 2021-07-08 | 2021-07-08 | Silencer and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215719050U true CN215719050U (en) | 2022-02-01 |
Family
ID=80047967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121551958.1U Active CN215719050U (en) | 2021-07-08 | 2021-07-08 | Silencer and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215719050U (en) |
-
2021
- 2021-07-08 CN CN202121551958.1U patent/CN215719050U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |