CN212563383U

CN212563383U - Novel silencer device for vehicle

Info

Publication number: CN212563383U
Application number: CN202020569197.1U
Authority: CN
Inventors: 席文倩; 潘世林; 夏靖武; 梅周盛; 王红学
Original assignee: Hanteng Automobile Co Ltd
Current assignee: Hanteng Automobile Co Ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-02-19
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a novel silencer device for vehicles, which comprises a shell, wherein two groups of clapboards are fixedly arranged in the shell, a first cavity is arranged between the two groups of clapboards, an air inlet pipe is arranged in the shell in a penetrating way and comprises a first hollow pipe and a second hollow pipe, a bent pipe is fixedly connected between the first hollow pipe and the second hollow pipe, the first hollow pipe penetrates through one side of the shell and extends to the outside of the shell, an air outlet pipe is arranged in the first cavity in a penetrating way, two ends of the air outlet pipe respectively penetrate through the two groups of clapboards and extends to the outside of the first cavity, one end of the air outlet pipe penetrates through the shell and extends to the outside of the shell, vent holes are arranged in the clapboards and in an equal distance array of the pipe walls of the air inlet pipe and the air outlet pipe, a silencing layer is filled in the first cavity, a second cavity and, the noise reduction device has good noise reduction performance and simultaneously ensures good power performance.

Description

Novel silencer device for vehicle

Technical Field

The utility model relates to a vehicle silencer technical field specifically is a novel vehicle silencer device.

Background

With the continuous development of economy in China, the production and sales of automobiles are increased every year, and the problem that traffic noise pollutes the environment is increasingly highlighted, so that the harm of automobile noise to cities must be controlled by making a noise regulation. Noise regulations in China are updated every few years, and stricter automobile noise limit values are set, so that the demand of engines with smaller exhaust noise is increased, and one method for reducing the noise is to install a silencer.

Background of muffler design:

1. in practice, the design process of the silencer is complex, and a mature theory is not proposed at the present stage so as to directly complete the design of the silencer. Designers must go through a great deal of research, repeatedly modify, test, verify the design scheme, just can design the silencer that satisfies the noise reduction requirement.

2. The addition of the muffler inevitably affects the power performance of the engine, and the high pressure loss increases the exhaust back pressure, which further affects the combustion efficiency of the engine and deteriorates the power performance. The pressure loss should be as small as possible while ensuring the amount of sound attenuation of the muffler.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel silencer device for a vehicle, which has wide frequency band, can better eliminate low-frequency noise and high-frequency noise, has small turbulent kinetic energy and reduces the airflow regeneration noise in the silencer; the exhaust back pressure is small, namely the pressure loss is small, and the noise reduction performance is good, and meanwhile, the power performance is good, so that the problems in the background art are solved.

In order to achieve the above object, the utility model provides a following technical scheme: a novel silencer device for a vehicle comprises a shell, wherein two groups of partition plates are fixedly arranged in the shell, a first cavity is arranged between the two groups of partition plates, an air inlet pipe penetrates through the shell and comprises a first hollow pipe and a second hollow pipe, a bent pipe is fixedly connected between the first hollow pipe and the second hollow pipe, and the first hollow pipe penetrates through one side of the shell and extends to the outside of the shell;

an air outlet pipe penetrates through the first cavity, two ends of the air outlet pipe respectively penetrate through the two groups of partition plates and extend to the outside of the first cavity, and one end of the air outlet pipe penetrates through the shell and extends to the outside of the shell;

the partition plate and the pipe walls of the air inlet pipe and the air outlet pipe are arranged in an equal-distance array mode, and the first cavity is filled with a silencing layer.

Preferably, a second cavity and a third cavity are arranged on two sides of the first cavity in the shell.

Preferably, one side of the shell is positioned at the penetrating position of the first hollow pipe and provided with an air inlet, one side of the shell is positioned at the penetrating position of the air outlet pipe and provided with an air outlet, and the partition plates are respectively positioned at the penetrating positions of the first hollow pipe, the second hollow pipe, the third hollow pipe and the air outlet pipe and provided with through holes.

Preferably, the cross section of the shell is in an elliptical structure, and the expansion ratio of the shell is as follows.

Preferably, the surface of the air outlet pipe is fixedly provided with a sleeve, and the sleeve is also internally provided with a silencing layer.

Preferably, a third hollow pipe is fixedly installed between the first cavity and the second cavity, and vent holes are also arranged in the pipe wall of the third hollow pipe in an annular equidistant array mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the silencer has wide frequency band, can better eliminate low-frequency noise and high-frequency noise, has small turbulent kinetic energy, and reduces the airflow regeneration noise in the silencer;

2. the exhaust back pressure is small, namely the pressure loss is small, and the noise reduction performance is good, and meanwhile, the power performance is good.

Drawings

FIG. 1 is a schematic side view, in cross-section, of a novel vehicular muffler assembly of the present invention;

fig. 2 is a schematic perspective view of a novel muffler device for a vehicle according to the present invention;

fig. 3 is the perspective view of the partition board of the muffler device for vehicle of the present invention.

In the figure: 1. a housing; 2. a partition plate; 3. a first cavity; 4. an air inlet pipe; 401. a first hollow tube; 402. A second hollow tube; 403. bending the pipe; 5. an air outlet pipe; 6. a vent hole; 7. a sound-deadening layer; 8. a second cavity; 9. a third cavity; 10. an air inlet; 11. an air outlet; 12. a sleeve; 13. a third hollow tube; 14. and (6) a via hole.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a novel silencer device for a vehicle comprises a shell 1, the cross section of the shell 1 is arranged in an oval structure, the expansion ratio of the shell 1 is 24, two groups of partition boards 2 are fixedly arranged in the shell 1, a first cavity 3 is arranged between the two groups of partition boards 2, a second cavity 8 and a third cavity 9 are arranged on both sides of the first cavity 3 in the shell 1, a third hollow tube 13 is fixedly arranged between the first cavity 3 and the second cavity 8, the tube wall of the third hollow tube 13 is also internally provided with vent holes 6 in an annular equidistant array, an air inlet pipe 4 penetrates through the shell 1, the air inlet pipe 4 comprises a first hollow pipe 401 and a second hollow pipe 402, an elbow 403 is fixedly connected between the first hollow pipe 401 and the second hollow pipe 402, the first hollow pipe 401 penetrates through one side of the shell 1 and extends to the outside of the shell 1, and an air inlet 10 is formed in a position, through which the first hollow pipe 401 penetrates, on one side of the shell 1.

Run through in the first cavity 3 and install

outlet duct

5, 5 both ends of outlet duct run through respectively in two sets of baffles 2 and extend to the 3 outsides of first cavity, 5 one end of outlet duct runs through in casing 1 again and extends to the casing 1 outside, and casing 1 one side is located 5 run through positions of outlet duct and has seted up venthole 11.

The equal distance array of pipe wall of baffle 2 interior and intake pipe 4 and outlet duct 5 has air vent 6, the intussuseption of first cavity 3 is filled with

noise damping layer

7, 5 fixed surface installs of outlet duct have sleeve 12, also be provided with noise damping layer 7 in the sleeve 12, it all has seted up via hole 14 to be located first hollow tube 401, second hollow tube 402, third hollow tube 13 and outlet duct 5 through position respectively in the baffle 2.

The utility model discloses a noise damping layer 7 can choose for use and inhale that sound quality is good, high temperature resistance ceramic fiber cotton, glass fiber cotton, aluminium silicate fiber cotton, asbestos board, screen cloth etc. make into flocculence or tubulose, can be individual layer or multilayer laminated structure.

The structure principle is as follows: the first hollow pipe 401, the bent pipe 403 and the second hollow pipe 402 are arranged and matched with the application of the air outlet pipe 5, so that the airflow flowing space of the shell 1 is increased, the frequency band of the silencer is improved, low-frequency noise and high-frequency noise can be better eliminated, turbulent energy of the silencer is reduced through the drainage of the air pipes, and airflow regeneration noise in the shell 1 is reduced;

through setting up first cavity 3 and filling noise damping layer 7 in first cavity 3, reduce the exhaust backpressure in whole casing 1, reduced the loss of pressure of muffler promptly, when keeping good the performance of making an uproar, guarantee the good dynamic behavior of engine.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel silencer device for a vehicle, comprising a housing (1), characterized in that: two groups of partition plates (2) are fixedly installed in the shell (1), a first cavity (3) is arranged between the two groups of partition plates (2), an air inlet pipe (4) penetrates through the shell (1), the air inlet pipe (4) comprises a first hollow pipe (401) and a second hollow pipe (402), an elbow (403) is fixedly connected between the first hollow pipe (401) and the second hollow pipe (402), and the first hollow pipe (401) penetrates through one side of the shell (1) and extends to the outside of the shell (1);

an air outlet pipe (5) penetrates through the first cavity (3), two ends of the air outlet pipe (5) respectively penetrate through the two groups of partition plates (2) and extend to the outside of the first cavity (3), and one end of the air outlet pipe (5) penetrates through the shell (1) and extends to the outside of the shell (1);

the equal interval array of pipe wall of baffle (2) and intake pipe (4) and outlet duct (5) has air vent (6), first cavity (3) intussuseption is filled with amortization layer (7).

2. The novel vehicular muffler device according to claim 1, wherein: and a second cavity (8) and a third cavity (9) are arranged on two sides of the first cavity (3) in the shell (1).

3. The muffler device for a vehicle as claimed in claim 2, wherein: a third hollow pipe (13) is fixedly installed between the first cavity (3) and the second cavity (8), and vent holes (6) are also arranged in the pipe wall of the third hollow pipe (13) in an annular equidistant array mode.

4. The novel vehicular muffler device according to claim 1, wherein: the section of the shell (1) is in an oval structure, and the expansion ratio of the shell (1) is 24.

5. The novel vehicular muffler device according to claim 1, wherein: the surface of the air outlet pipe (5) is fixedly provided with a sleeve (12), and a silencing layer (7) is also arranged in the sleeve (12).

6. A novel vehicular muffler device according to claim 3, wherein: casing (1) one side is located first hollow tube (401) and runs through the position and has seted up inlet port (10), and casing (1) one side is located outlet duct (5) and runs through the position and has seted up venthole (11), it has all seted up via hole (14) to lie in first hollow tube (401), second hollow tube (402), third hollow tube (13) and outlet duct (5) through the position respectively in baffle (2).