阅读说明：本技术 减振结构 (Vibration damping structure ) 是由 何平 黄世国 陈子兵 李艳光 黄波 于 2021-08-19 设计创作，主要内容包括：本申请公开了一种减振结构,属于汽车减振技术领域。所述减振结构包括：减振组件和隔振器；所述减振组件位于所述隔振器的内部；所述减振组件包括至少一个壳体,每个所述壳体内填充有阻尼粒子,所述阻尼粒子可运动地位于所述壳体内。该减振结构可以在无需降低隔振器刚度的前提下,运用多种实现方式,实现减振效果,增强了汽车的减振能力,延长了隔振器的使用寿命。(The application discloses damping structure belongs to car damping technical field. The vibration damping structure includes: a vibration attenuation assembly and a vibration isolator; the vibration attenuation assembly is positioned inside the vibration isolator; the vibration attenuation assembly comprises at least one shell, and each shell is filled with damping particles which are movably located in the shell. The vibration reduction structure can realize the vibration reduction effect by using various realization modes on the premise of not reducing the rigidity of the vibration isolator, enhances the vibration reduction capability of an automobile and prolongs the service life of the vibration isolator.)

1. A vibration damping structure, characterized in that it comprises a vibration damping assembly (1) and a vibration isolator (2);

the vibration attenuation component (1) is positioned inside the vibration isolator (2);

the vibration damping assembly (1) comprises at least one shell, and each shell is filled with damping particles which are movably positioned in the shell.

2. The vibration damping structure according to claim 1, wherein the inner surface of the housing has a damping coating layer made of damping glue and a polymer damping material.

3. The vibration damping structure according to claim 1, wherein the damping particles are made of an iron-based material or a rubber material, and a filling rate of the damping particles in the interior of the housing is 30% to 50%.

4. The vibration damping structure according to claim 1, characterized in that the vibration isolator (2) has a first passage (21) and a second passage (22), the first passage (21) and the second passage (22) are arranged in parallel, and both the first passage (21) and the second passage (22) penetrate the vibration isolator (2).

5. The vibration damping structure according to claim 4, characterized by further comprising: a first pipe body (3) and a fixed bracket (4);

one end of the first pipe body (3) is connected with the fixing support (4), and the other end of the first pipe body (3) penetrates through the first channel (21).

6. The vibration damping structure according to claim 5, further comprising: a second tube body (5) and a fixed tube (6);

one end of the second pipe body (5) is connected with the fixing pipe (6), and the other end of the second pipe body (5) penetrates through the second channel (22).

7. The structure according to claim 6, characterized in that said damping assembly (1) comprises two housings, one of which is located inside said first tubular body (3) and the other of which is located inside said second tubular body (5).

8. The vibration damping arrangement according to claim 6, characterized in that the vibration damping assembly (1) comprises two housings, one of which is located inside the first tubular body (3) and the other of which is located inside the vibration isolator (2) between the first channel (21) and the second channel (22).

9. The damping structure according to claim 6, characterized in that the damping assembly (1) comprises two housings, one of which is located inside the second tubular body (5) and the other of which is located inside the vibration isolator (2) between the first passage (21) and the second passage (22).

10. The vibration damping arrangement according to claim 6, characterized in that the vibration damping assembly (1) comprises three housings, one of which is located inside the first pipe body (3), one of which is located inside the second pipe body (5), and one of which is located inside the vibration isolator (2) between the first passage (21) and the second passage (22).

Technical Field

The application relates to the technical field of automobile vibration reduction, in particular to a vibration reduction structure.

Background

Automobiles have become an indispensable vehicle in people's daily life. At present, people expect higher and higher use of automobiles, and expect to drive automobiles smoothly and safely. During the driving of the motor vehicle, vibrations generated by the engine or by the wheels due to the uneven road surface are transmitted to the vehicle body via the exhaust system, which causes the vehicle body to vibrate and thus the driver or passenger in the vehicle body to feel the vibrations.

In the related art, a vibration isolator is provided between a vehicle body and an exhaust system, wherein the vibration isolator is made of a deformable elastic material. When the exhaust system vibrates, the exhaust system transmits the vibration to the vibration isolator, and the vibration isolator deforms in the vibration process due to the fact that the vibration isolator is made of deformable elastic materials, and the vibration reduction effect is achieved by converting kinetic energy into elastic potential energy. However, the related art generally enhances the vibration damping capability by reducing the stiffness of the vibration isolator, but reducing the stiffness of the vibration isolator affects the durability of the vibration isolator, making the vibration isolator susceptible to fatigue failure.

Disclosure of Invention

In view of this, the application provides a vibration reduction structure, can improve the damping effect of isolator under the prerequisite that does not reduce isolator rigidity, prolongs the life of isolator.

Specifically, the method comprises the following technical scheme:

the embodiment of the application provides a vibration reduction structure, which comprises a vibration reduction assembly and a vibration isolator;

the vibration attenuation assembly is positioned inside the vibration isolator;

the vibration attenuation assembly comprises at least one shell, and each shell is filled with damping particles which are movably located in the shell.

In some embodiments, the inner surface of the housing has a damping coating made of damping glue and a polymeric damping material.

In some embodiments, the damping particles are made of an iron-based material or a rubber material, and a filling rate of the damping particles in the interior of the housing is 30% to 50%.

In some embodiments, the vibration isolator has a first passage and a second passage, the first passage and the second passage are arranged in parallel, and both the first passage and the second passage extend through the vibration isolator.

In some embodiments, the vibration damping structure further comprises: the device comprises a first pipe body and a fixed support;

one end of the first pipe body is connected with the fixed support, and the other end of the first pipe body penetrates through the first channel.

In some embodiments, the vibration damping structure further comprises: a second tube and a fixed tube;

one end of the second pipe body is connected with the fixed pipe, and the other end of the second pipe body penetrates through the second channel.

In some embodiments, the vibration attenuation module includes two housings, wherein one of the housings is located in the first passage and the other housing is located in the second passage.

In some embodiments, the vibration damping assembly includes two housings, one of which is located within the first passage and the other of which is located within the interior of the vibration isolator between the first passage and the second passage.

In some embodiments, the vibration attenuation module includes two housings, one of which is located within the second passage and the other of which is located within the interior of the vibration isolator between the first passage and the second passage.

In some embodiments, the vibration damping assembly includes three housings, wherein one of the housings is located within the first passage, one of the housings is located within the second passage, and one of the housings is located within the isolator between the first passage and the second passage.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

when vibration is transmitted to the vibration isolator, the vibration isolator can vibrate, movable damping particles are arranged inside the vibration isolator, so that after the damping particles are driven to move, the kinetic energy generated by vibration of the vibration isolator can be partially converted into the kinetic energy of the damping particles and the heat energy generated by mutual friction between the damping particles, the vibration of the vibration isolator is reduced, the rigidity of the vibration isolator does not need to be reduced, the vibration attenuation effect can be realized, and the service life of the vibration isolator is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a vibration damping assembly and a vibration isolator of a vibration damping structure according to an embodiment of the present application;

FIG. 2 is a schematic view of a damping structure provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a first implementation of a vibration damping assembly and vibration isolator in a vibration damping structure according to an embodiment of the present application;

FIG. 4 is a structural schematic diagram of a second implementation of a vibration damping assembly and vibration isolator in a vibration damping structure according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a third implementation of a vibration damping assembly and vibration isolator in a vibration damping structure according to an embodiment of the present application;

fig. 6 is a structural schematic diagram of a fourth implementation manner of the vibration damping assembly and the vibration isolator in the vibration damping structure provided by the embodiment of the application.

The reference numerals in the figures are denoted respectively by:

1-a vibration-damping component, wherein,

2-vibration isolator, 21-first passage, 22-second passage,

3-a first tube body, 31-a first limit part, 32-a second limit part, 33-a first sub-tube, 34 a second sub-tube,

4-fixing the support, namely fixing the support,

5-a second pipe body, 51-a third limiting part, 52-a fourth limiting part, 53-a third sub-pipe, 54-a fourth sub-pipe, 55-a fifth sub-pipe,

6-fixing the tube.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Reference to orientation terms in the embodiments of the present application, such as "upper," "lower," "side," and the like, are generally based on the relative relationship of the orientations shown in fig. 2, and these orientation terms are used merely for clarity of description of the structures and the relationship between the structures, and are not used for describing absolute orientations. When the product is placed in different postures, the orientation may be changed, for example, "up" and "down" may be interchanged.

In order to make the technical solutions and advantages of the present application clearer, the following will describe the embodiments of the present application in further detail with reference to the accompanying drawings.

At present, people expect higher and higher use of automobiles, and expect to drive automobiles smoothly and safely. The vibration damping effect of the connection part of the exhaust system and the vehicle body is particularly important because the vibration of the engine is transmitted to the vehicle body through the exhaust system and the vibration excitation of the road surface is also transmitted to the vehicle body through the exhaust system.

In the related art, a vibration isolator is disposed between a vehicle body and an exhaust system, wherein the vibration isolator is made of a deformable elastic material, and the vibration transmitted into the vehicle is generally reduced by reducing the rigidity of the vibration isolator, but the rigidity of the vibration isolator cannot be reduced without limit due to the problem of the material itself, so a new vibration reduction scheme is required to improve the vibration reduction performance of the exhaust system.

In order to solve the problems in the related art, an embodiment of the present application provides a vibration damping structure, and a schematic structural diagram of the vibration damping structure is shown in fig. 1.

Referring to fig. 1, a vibration damping assembly 1 is located inside a vibration isolator 2.

The vibration damping assembly 1 comprises at least one housing, each filled with damping particles, which are movably located within the housing.

The working principle of the vibration reduction structure provided by the embodiment of the application is as follows:

when vibration transmits vibration isolator 2 on, vibration isolator 2 self can produce vibration, because the inside of vibration isolator 2 is provided with mobilizable damping particle, therefore after damping particle is the drive motion, vibration isolator 2 can be partly converted into damping particle's kinetic energy and damping particle between because the heat energy that produces of mutual friction because the kinetic energy that produces because of vibration for vibration isolator 2 vibration itself reduces, need not to reduce vibration isolator 2 rigidity, can realize the damping effect, has prolonged vibration isolator 2's life.

It can be understood that the vibration damping structure provided by the embodiment of the application is positioned between the vehicle body and the exhaust system, and the vibration transmitted to the vehicle body by the exhaust system can be reduced by the vibration damping system.

The following further describes and explains the vibration damping structure provided by the embodiment of the application:

in some embodiments, the vibration isolator 2 is a rectangular plate made of rubber. The vibration isolator 2 has certain thickness and high elasticity, can generate large elastic deformation, and can realize the vibration reduction function by converting kinetic energy transmitted by an exhaust system into elastic potential energy when the vibration isolator 2 deforms.

In some embodiments, the hardness of the rubber may be adjusted as needed to meet the strength requirements of the vibration dampening structure.

In some embodiments, with continued reference to FIG. 1, the inner surface of the shell has a damping coating, such that acoustic waves generated by damping particle vibrations may be absorbed by the damping coating to achieve noise reduction.

In some embodiments, the housing is a sealed structure made of stainless steel material for containing the damping particles and limiting the range of motion of the damping particles.

In some embodiments, the damping coating is made of damping glue and a polymeric damping material.

In some embodiments, the damping coating may be applied to the inner surface of the shell by spraying.

In some embodiments, the damping particles are made of an iron-based material or a rubber material, and the filling rate of the damping particles in the shell is 30% -50% so as to ensure that the damping particles have enough movement space in the shell and can contact with each other to generate friction.

It can be understood that when the damping particles vibrate, friction occurs between the particles in different degrees, and the function of vibration reduction can be realized by converting the kinetic energy transmitted by the exhaust system into the kinetic energy for the vibration of the damping particles and the internal energy generated by the mutual friction of the damping particles.

In some embodiments, the size of the damping particles needs to be designed according to different production examples, and in general, the diameter of the damping particles ranges from 1mm to 2 mm.

In some embodiments, the material used for the damping particles may be selected according to the characteristics of the vibration to be reduced when the vibration damping structure is designed, and the material parameters include: particle surface friction factor, particle surface coefficient of restitution, density, and shell packing rate.

In some embodiments, the surface friction coefficient of the damping particles ranges from 0.01 to 0.99.

In some embodiments, with continued reference to fig. 1, the vibration isolator 2 has a first passage 21 and a second passage 22, the first passage 21 and the second passage 22 are arranged in parallel, and both the first passage 21 and the second passage 22 extend through the vibration isolator 2.

So arranged, the first passage 21 can be used for connecting the exhaust system, and the second passage 22 can be used for connecting the vehicle body, so that the vibration isolator 2 can be connected with the exhaust system and the vehicle body.

In some embodiments, the first channel 21 and the second channel 22 are both cylindrical channels, and the cross-sectional area of the first channel 21 and the cross-sectional area of the second channel 22 are the same.

In some embodiments, referring to fig. 2, the vibration damping structure 1 provided in the embodiments of the present application further includes: a first pipe body 3 and a fixed bracket 4;

wherein, one end of the first pipe 3 is connected with the fixed support 4, and the other end of the first pipe 3 penetrates through the first channel 21.

The first pipe 3 and the fixing bracket 4 are arranged so as to connect the vibration isolator 2 with the vehicle body.

In some embodiments, the first tubular body 3 is made of stainless steel.

In some embodiments, the outer diameter of the first tube 3 is the same as the diameter of the first channel 21, so that the first tube 3 is clamped in the first channel 21 and cannot move relative to the inner wall of the first channel 21.

In some embodiments, referring to fig. 2, the first tubular body 3 comprises: the first sub-pipe 33 is communicated with the second sub-pipe 34, the outer wall of the first sub-pipe 33 is connected with the fixed support 4, and the second sub-pipe 34 penetrates through the first channel 21.

In some embodiments, the axis of the first sub-tube 33 and the axis of the second sub-tube 34 are perpendicular to each other.

In some embodiments, the fixing bracket 4 has a stopper groove (not shown) at a lower portion thereof, and the fixing of the first pipe body 3 to the fixing bracket 4 may be achieved by inserting the first sub-pipe 33 into the stopper groove. One side of the fixed support is fixedly connected with the vehicle body through a metal welding process.

In some embodiments, the first tubular body 3 comprises: a first stopper portion 31 and a second stopper portion 32;

the first limiting part 31 is positioned at one end of the first channel 21 close to the fixed bracket 4 and abuts against the outer wall of the vibration isolator 2;

the second limiting part 32 is located at one end of the first channel 21 far away from the fixed bracket 4 and abuts against the outer wall of the vibration isolator 2.

So set up, can realize the fixed to isolator 2, avoid isolator 2 to take place lateral shifting.

In some embodiments, the first position-limiting portion 31 is a metal ring structure, and is embedded on the second sub-pipe 34, and is fixedly connected to the second sub-pipe 34 through a welding process.

In some embodiments, the inner wall of the first position-limiting portion 31 is fixedly connected with the outer wall of the second sub-tube 34.

In some embodiments, the second position-limiting portion 32 is a metal ring structure, and is nested on the second sub-pipe 34, and is fixedly connected to the second sub-pipe 34 through a welding process.

In some embodiments, the inner wall of the second limiting portion 32 is fixedly connected with the outer wall of the second sub-tube 34.

In some embodiments, the thickness of the first position-limiting portion 31 is the same as the thickness of the second position-limiting portion 32.

In some embodiments, referring to fig. 2, the vibration damping structure provided in the embodiments of the present application further includes: a second tube body 5 and a fixed tube 6;

wherein, one end of the second tube 5 is connected with the fixed tube 6, and the other end of the second tube 5 penetrates through the second channel 22.

The second pipe body 5 and the fixing bracket 4 are arranged so as to connect the vibration isolator 2 with the vehicle body.

In some embodiments, the second tube body 5 and the fixing tube 6 are made of stainless steel.

In some embodiments, the outer diameter of the second tube 5 corresponds to the diameter of the second channel 22, such that the second tube 5 is captured within the second channel 22 and cannot move relative to the inner wall of the second channel 22.

In some embodiments, referring to fig. 2, the second tubular body 5 comprises: a third sub-pipe 53, a fourth sub-pipe 54, and a fifth sub-pipe 55, wherein the third sub-pipe 53 penetrates the second passage 22, the fourth sub-pipe 54 is connected to the fixed pipe 6, and the fifth sub-pipe 55 is connected to an exhaust system.

In some embodiments, the axis of the third sub-pipe 53 and the axis of the fourth sub-pipe 54 are perpendicular to each other, the axis of the fourth sub-pipe 54 and the axis of the fifth sub-pipe 55 are perpendicular to each other, and the extending direction of the third sub-pipe 53 and the extending direction of the fifth sub-pipe 55 are the same.

In some embodiments, referring to fig. 2, the fixed tube 6 comprises: a sixth sub-pipe 61 and a seventh sub-pipe 62, wherein the sixth sub-pipe 61 and the fourth sub-pipe 54 are connected, and the seventh sub-pipe 62 is connected to an exhaust system.

In some embodiments, the length of the sixth sub-tube 61 is the same as the length of the fourth sub-tube 54, the axis of the sixth sub-tube 61 is parallel to the axis of the fourth sub-tube 54, and the axis of the seventh sub-tube 62 is perpendicular to the axis of the sixth sub-tube 61.

In some embodiments, referring to fig. 2, the second tubular body 5 comprises: a third stopper portion 51 and a fourth stopper portion 52;

the third limiting part 51 is positioned at one end of the second channel 22 close to the fixed pipe 6 and is abutted against the outer wall of the vibration isolator 2;

the fourth limiting part 52 is positioned at one end of the second channel 22 far away from the fixed pipe 6 and is abutted against the outer wall of the vibration isolator 2.

So set up, can realize the fixed to isolator 2, avoid isolator 2 to take place lateral shifting.

In some embodiments, the third position-limiting portion 51 may be a metal ring structure, and is nested on the third sub-pipe 53, and is fixedly connected to the third sub-pipe 53 through a welding process.

In some embodiments, the inner wall of the third position-limiting portion 51 is fixedly connected with the outer wall of the third sub-pipe 53.

In some embodiments, the fourth position-limiting portion 52 is a metal ring structure, and is nested on the third sub-pipe 53, and is fixedly connected to the third sub-pipe 53 through a welding process.

In some embodiments, the inner wall of the fourth position-limiting portion 52 is fixedly connected with the outer wall of the third sub-pipe 53.

In some embodiments, the thickness of the third position limiting portion 51 is the same as the thickness 52 of the fourth position limiting portion, and is the same as the thickness of the first position limiting portion 31 and the thickness of the second position limiting portion 32.

In some embodiments, the specific structure and arrangement of the damping module 1 may be implemented in various ways, and the following ways are exemplified as follows:

in a possible implementation, with reference to fig. 3, the damping assembly 1 comprises two housings, one of which is located inside the first tubular body 3 and the other inside the second tubular body 5.

When the vibration is transmitted to the vibration reduction assembly 1, the second pipe body 5 is firstly vibrated under the influence of the vibration, then the second pipe body 5 drives the damping particles in the shell in the pipe body to vibrate, and the kinetic energy generated by the vibration can be partially converted into the kinetic energy of the damping particles and the internal energy generated by mutual friction by utilizing the vibration of the damping particles; if the vibration is small, the vibration can be completely eliminated by using the damping particles positioned in the second pipe body 5, if the vibration cannot be completely eliminated, the vibration can be continuously transmitted to the vibration isolator 2, so that the vibration isolator 2 is deformed, and the deformation can convert the kinetic energy of the vibration into the elastic potential energy of the vibration isolator 2 so as to further reduce the vibration; if the vibration can not be completely eliminated, the vibration can be continuously transmitted to the first pipe body 3, so that the damping particles positioned in the first pipe body 3 generate vibration, and the kinetic energy part generated by the vibration can be converted into the kinetic energy of the damping particles and the internal energy generated by mutual friction by utilizing the vibration of the damping particles, so that the vibration can be further reduced, and the aim of vibration reduction can be fulfilled.

In one possible implementation, referring to fig. 4, the vibration damping assembly 1 comprises two housings, one of which is located inside the first tubular body 3 and the other of which is located inside the vibration isolator 2 between the first passage 21 and the second passage 22.

When the vibration is transmitted to the vibration reduction assembly 1, the second pipe body 5 firstly generates vibration under the influence of the vibration, and then the second pipe body 5 drives the vibration isolator 2 to generate vibration, so that the vibration isolator 2 is deformed, and the deformation can convert the kinetic energy of the vibration into the elastic potential energy of the vibration isolator 2 so as to reduce the vibration; if the vibration is small, the vibration can be completely eliminated by utilizing the deformation of the vibration isolator 2, and if the vibration cannot be completely eliminated, the vibration can be continuously transmitted to the shell inside the vibration isolator 2 between the first channel 21 and the second channel 22 to drive the internal damping particles to vibrate, so that part of kinetic energy generated by the vibration can be converted into the kinetic energy of the damping particles and the internal energy generated by mutual friction, and the vibration can be further reduced; if the vibration can not be completely eliminated, the vibration can be continuously transmitted to the first pipe body 3, so that the damping particles positioned in the first pipe body 3 generate vibration, and the kinetic energy part generated by the vibration can be converted into the kinetic energy of the damping particles and the internal energy generated by mutual friction by utilizing the vibration of the damping particles, so that the vibration can be further reduced, and the aim of vibration reduction can be fulfilled.

In one possible implementation, referring to fig. 4, the vibration damping assembly 1 comprises two housings, one of which is located inside the second tubular body 5 and the other of which is located inside the vibration isolator 2 between the first passage 21 and the second passage 22.

When the vibration is transmitted to the vibration reduction assembly 1, the second pipe body 5 is firstly vibrated under the influence of the vibration, then the second pipe body 5 drives the damping particles in the shell in the pipe body to vibrate, and the kinetic energy generated by the vibration can be partially converted into the kinetic energy of the damping particles and the internal energy generated by mutual friction by utilizing the vibration of the damping particles; if the vibration is small, the vibration can be completely eliminated by using the damping particles positioned in the second pipe body 5, if the vibration cannot be completely eliminated, the vibration can be continuously transmitted to the vibration isolator 2, so that the vibration isolator 2 is deformed, and the deformation can convert the kinetic energy of the vibration into the elastic potential energy of the vibration isolator 2 so as to further reduce the vibration; if the vibration cannot be completely eliminated, the vibration will continue to be transmitted to the housing inside the vibration isolator 2 between the first channel 21 and the second channel 22, and will drive the internal damping particles to vibrate, so that the kinetic energy generated by the vibration can be partially converted into the kinetic energy of the damping particles and the internal energy generated by mutual friction, and the vibration can be further reduced, thereby achieving the purpose of vibration reduction.

In one possible implementation, referring to fig. 3, the vibration damping assembly 1 comprises three housings, one of which is located inside the first tubular body 3, one of which is located inside the second tubular body 5, and the other of which is located inside the vibration isolator 2 between the first passage 21 and the second passage 22.

When the vibration is transmitted to the vibration reduction assembly 1, the second pipe body 5 is firstly vibrated under the influence of the vibration, then the second pipe body 5 drives the damping particles in the shell in the pipe body to vibrate, and the kinetic energy generated by the vibration can be partially converted into the kinetic energy of the damping particles and the internal energy generated by mutual friction by utilizing the vibration of the damping particles; if the vibration is small, the vibration can be completely eliminated by using the damping particles positioned in the second pipe body 5, if the vibration cannot be completely eliminated, the vibration can be continuously transmitted to the vibration isolator 2, so that the vibration isolator 2 is deformed, and the deformation can convert the kinetic energy of the vibration into the elastic potential energy of the vibration isolator 2 so as to further reduce the vibration; if the vibration cannot be completely eliminated, the vibration continues to be transmitted to the shell inside the vibration isolator 2 between the first channel 21 and the second channel 22, so as to drive the internal damping particles to vibrate, and the kinetic energy generated by the vibration can be partially converted into the kinetic energy of the damping particles and the internal energy generated by mutual friction, so as to further reduce the vibration; if the vibration can not be completely eliminated, the vibration can be continuously transmitted to the first pipe body 3, so that the damping particles positioned in the first pipe body 3 generate vibration, and the kinetic energy part generated by the vibration can be converted into the kinetic energy of the damping particles and the internal energy generated by mutual friction by utilizing the vibration of the damping particles, so that the vibration can be further reduced, and the aim of vibration reduction can be fulfilled.

In a possible implementation manner, the vibration damping module 1 may include a housing, the housing is located inside the first pipe 3 or the second pipe 5 or the vibration isolator 2 located between the first passage 21 and the second passage 22, and the vibration damping module 1 is configured to convert kinetic energy transmitted by the exhaust system into kinetic energy for damping particle movement and internal energy generated by mutual friction, so as to absorb energy of the exhaust system, thereby achieving a vibration damping effect. However, as will be understood by those skilled in the art, when the vibration damping module 1 includes only one housing, the vibration damping capability is weak as compared to when the vibration damping module 1 includes a plurality of housings, and thus two or more housings are generally selected to be provided when the vibration damping module 1 is provided. In addition, the number of the shells in the vibration damping assembly 1 is not specifically limited in the embodiment of the application, and the shells can be selectively arranged according to actual conditions, which is not described herein again.

In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the present application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.