CN211493934U

CN211493934U - Multilayer noise reduction high-performance silencer

Info

Publication number: CN211493934U
Application number: CN201922137448.9U
Authority: CN
Inventors: 李小兵
Original assignee: Longquan Aoxiang Automobile Air-Conditioning Ltd
Current assignee: Longquan Aoxiang Automobile Air-Conditioning Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-09-15
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a multilayer noise reduction high-performance silencer, belonging to the field of silencer equipment, comprising a silencing barrel, the inner wall of the silencing barrel is provided with an annular cavity, the inner wall of the silencing barrel is fixedly connected with porous alloy, the outer wall of the silencing barrel is provided with a first hole, the inner wall of the silencing barrel is provided with a second hole, an inner cavity is arranged inside the silencing barrel, silencing pipes are fixedly connected with the two ends of the silencing barrel, the side wall of the silencing pipe is fixedly connected with two clapboards which divide the side wall of the silencing pipe into a first chamber, a second chamber and a third chamber from inside to outside, the second cavity with it has polyester to inhale sound cotton and foam glass to fill respectively in the third cavity, the graphite pipe has been cup jointed to the inside of third cavity, can realize effectual noise elimination and can be with the heat that produces when reducing the noise elimination simultaneously.

Description

Multilayer noise reduction high-performance silencer

Technical Field

The utility model relates to a muffler equipment field, more specifically say, relate to the multilayer and fall high performance muffler of making an uproar.

Background

The silencer is used for the airflow pipeline with noise transmission, and can attenuate or reflect the noise in the pipeline by using the pipeline and elbow attached with sound absorption waves or noise reduction devices such as the pipeline with suddenly changed sectional area and other discontinuous acoustic impedance.

Generally all can use the muffler noise abatement in the car bottom, but traditional muffler amortization cavity design unreasonable results in the automobile staring to have great sound in the past according to, has reduced the effect of muffler, and the muffler can produce a large amount of heats through supporting the amortization lining simultaneously, and traditional muffler does not set up heat abstractor, thereby leads to the muffler to be hotter to influence the muffler performance.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a multilayer is fallen high performance muffler of making an uproar, it can realize effectual noise elimination, the heat that produces when can reducing noise elimination simultaneously.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

Multilayer noise reduction high performance muffler, including amortization bucket, its characterized in that: the utility model discloses a silencer, including amortization bucket, first hole, second hole, inner chamber, both ends fixedly connected with amortization pipe, baffle, first cavity, second cavity and third cavity, the annular cavity has been seted up to the inner wall of amortization bucket, the inner wall fixedly connected with porous alloy of amortization bucket, first hole has been seted up to the outer wall of amortization bucket, the second hole has been seted up to the inner wall of amortization bucket, the inner chamber has been seted up to the inside of amortization bucket, the both ends fixedly connected with amortization pipe of amortization bucket, the lateral wall fixedly connected with.

Furthermore, the width of the first hole is 0.6 times of the width of the second hole, so that sound waves can enter the annular cavity conveniently.

Furthermore, the side wall of the partition board is provided with a through hole, so that sound waves can conveniently enter the first cavity, the second cavity and the third cavity to reflect the sound waves and eliminate noise.

Furthermore, polyurethane foam is filled in the annular cavity and the graphite pipe, so that noise can be absorbed conveniently.

Furthermore, polyester sound-absorbing cotton and foam glass are filled in the second cavity and the third cavity respectively, so that noise can be absorbed conveniently.

Furthermore, the side wall of the porous alloy is provided with strip-shaped holes which are intersected horizontally and vertically, so that sound waves can be reflected and eliminated conveniently.

Furthermore, the first hole is communicated with the annular cavity, the first cavity, the second cavity and the third cavity, so that the sound waves can be reflected and eliminated conveniently.

Furthermore, the outer wall of the silencing pipe is provided with a heat dissipation hole with the diameter 0.2 times that of the through hole, so that heat dissipation of the graphite pipe is facilitated.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme is linked together through first cavity, second cavity, third cavity and annular cavity, thereby has increased the reflection of sound wave and has made the sound wave turn into heat energy, if the noise subtracts, will turn into heat energy through the sound reflection in the pipeline through the inside bar hole of porous alloy simultaneously, gives off heat energy through the effectual louvre from the hush pipe outer wall of graphite pipe with heat energy and detach.

(2) The through hole has been seted up to the lateral wall of baffle, makes things convenient for the sound wave to get into first cavity, second cavity and third cavity indoor reflection sound wave noise abatement.

(3) Polyurethane foam is filled in the annular cavity and the graphite pipe, so that noise is absorbed conveniently.

(4) The sound cotton and foam glass are inhaled to the packing in second cavity and the third cavity respectively, the noise absorption of being convenient for.

(5) The outer wall of the silencing pipe is provided with a heat dissipation hole with the diameter 0.2 times that of the through hole, so that heat dissipation of the graphite pipe is facilitated.

Drawings

FIG. 1 is a planar view of the structure of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a sectional view of a graphite tube structure.

The reference numbers in the figures illustrate:

1. a silencing barrel; 2. an annular cavity; 3. a porous alloy; 4. a first hole; 5. a second hole; 6. an inner cavity; 7. a sound-deadening tube; 8. a partition plate; 9. a first chamber; 10. a second chamber; 11. a third chamber; 12. a graphite tube.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

please refer to fig. 1, a multilayer noise reduction high performance silencer, including a silencing barrel 1, the silencing barrel 1 is in a shape of a pipe made of aluminum alloy, an annular cavity 2 is formed on the inner wall of the silencing barrel 1, a porous alloy 3 is fixedly connected to the inner wall of the silencing barrel 1, a strip-shaped hole intersecting horizontally and vertically is formed in the side wall of the porous alloy 3, so that the sound wave can be reflected to form heat energy, thereby consuming the energy in the sound wave, and reducing the noise, a first hole 4 is formed in the outer wall of the silencing barrel 1, the first hole 4 is communicated with the annular cavity 2, a first chamber 9, a second chamber 10 and a third chamber 11, so that the sound wave can be reflected to convert the energy in the sound wave into heat energy, and reducing the noise, a second hole 5 is formed in the inner wall of the silencing barrel 1, the width of the first hole 4 is 0.6 times of the width.

Referring to fig. 1-3, an inner cavity 6 is formed inside a silencing barrel 1, wherein a second hole 5 is communicated with the inner cavity 6, the inner cavity 6 is cylindrical in the middle, the two ends of the inner cavity 6 are conical, the diameter of the cylinder is larger than the average diameter of the cone, silencing tubes 7 are fixedly connected to the two ends of the silencing barrel 1, the silencing tubes 7 are aluminum alloy pipes, heat dissipation holes with the diameter 0.2 times that of the through holes are formed in the outer walls of the silencing tubes 7, heat energy converted from sound waves is conveniently dissipated by a graphite tube 12, third holes are formed in the inner walls of the silencing tubes 7, noise can conveniently enter a first cavity 9 through the third holes, two partition plates 8 are fixedly connected to the side walls of the silencing tubes 7, through holes are formed in the side walls of the partition plates 8, sound waves can conveniently enter the first cavity 9, a second cavity 10 and a third cavity 11 for reflection, and the partition the side walls of the silencing tubes 7 into the first cavity 9, Second cavity 10 and third cavity 11, wherein it has the polyester to inhale sound cotton and foam glass to fill respectively in second cavity 10 and the third cavity 11, because the polyester inhales the performance of sound cotton and foam glass itself and is convenient for the noise absorption, graphite pipe 12 has been cup jointed to the inside of third cavity 11, wherein all pack in annular cavity 2 and the graphite pipe 12 has polyurethane foam, and polyurethane foam is convenient for the noise absorption of being convenient for, and graphite pipe 12 conveniently distributes away heat energy simultaneously.

The working principle is as follows: when the noise-reducing pipe is used, the noise-reducing pipe 7 is connected to a position needing noise reduction, noise enters the noise-reducing pipe 7 from one end of the noise-reducing pipe 7, then enters the first cavity 9 from the third hole on the inner wall of the noise-reducing pipe 7, then enters the second cavity 10 and the third cavity 11 from the first cavity 9 through the through hole on the partition plate 8, then the noise is repeatedly reflected in the first cavity 9, the second cavity 10 and the third cavity 11 to reduce the noise, meanwhile, a part of noise sound waves enter the inner cavity 6, then the inner cavity 6 enters the porous alloy 3, is reflected by the strip-shaped holes in the porous alloy 3, reflects a part of sound waves into the annular cavity 2 to be reduced, the annular cavity 2 then transmits a part of sound waves into the first cavity 9, the second cavity 10 and the third cavity 11 to be repeatedly reduced for multiple times, and meanwhile, polyester cotton and foam glass filled in the first cavity 9 and the second cavity 10 can effectively absorb the noise, at last, the heat energy generated by eliminating sound waves is dissipated by the graphite tube 12, and the scheme can realize effective noise elimination and simultaneously reduce the heat generated during noise elimination.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. Multilayer noise reduction high performance muffler, including amortization bucket (1), its characterized in that: annular cavity (2) have been seted up to the inner wall of amortization bucket (1), the inner wall fixedly connected with porous alloy (3) of amortization bucket (1), first hole (4) have been seted up to the outer wall of amortization bucket (1), second hole (5) have been seted up to the inner wall of amortization bucket (1), inner chamber (6) have been seted up to the inside of amortization bucket (1), both ends fixedly connected with amortization pipe (7) of amortization bucket (1), two baffles (8) of lateral wall fixedly connected with of amortization pipe (7), baffle (8) are separated the lateral wall of amortization pipe (7) by interior and for first cavity (9), second cavity (10) and third cavity (11), graphite pipe (12) have been cup jointed to the inside of third cavity (11).

2. The multi-layer noise reducing high performance muffler of claim 1, wherein: the width of the first hole (4) is 0.6 times of the width of the second hole (5).

3. The multi-layer noise reducing high performance muffler of claim 1, wherein: the side wall of the clapboard (8) is provided with a through hole.

4. The multi-layer noise reducing high performance muffler of claim 1, wherein: polyurethane foam is filled in the annular cavity (2) and the graphite tube (12).

5. The multi-layer noise reducing high performance muffler of claim 1, wherein: the second chamber (10) and the third chamber (11) are filled with polyester sound-absorbing cotton and foam glass respectively.

6. The multi-layer noise reducing high performance muffler of claim 1, wherein: the side wall of the porous alloy (3) is provided with strip-shaped holes which are intersected horizontally and vertically.

7. The multi-layer noise reducing high performance muffler of claim 1, wherein: the first hole (4) is communicated with the annular cavity (2), the first chamber (9), the second chamber (10) and the third chamber (11).

8. The multi-layer noise reducing high performance silencer of claim 3, wherein: the outer wall of the silencing pipe (7) is provided with a heat dissipation hole with the diameter 0.2 times that of the through hole.