Muffler assembly and vehicle

Abstract

The utility model discloses a kind of muffler assembly and vehicle, it is related to vehicle manufacturing technical field, muffler assembly includes: muffler shell;Air inlet pipe and air outlet pipe, at least part of the air inlet pipe and at least part of the air outlet pipe are stretched into the muffler shell, support structure is equipped in the muffler shell, the air inlet pipe and the air outlet pipe are respectively supported in the support structure;Deformation compensation piece, the deformation compensation piece is connected between the outer wall of support structure and the inner wall of the muffler shell.The muffler assembly according to the utility model can realize the interlayer slip amount between the outer wall of support structure and the inner wall of the muffler shell due to the difference of material expansion coefficient, and compensate, so as to eliminate abnormal sound generation, fundamentally solve the problem of uncontrollable conduction of thermal stress existing in muffler assembly.

Description

Technical Field

[0001] This utility model relates to vehicle manufacturing technology, and more particularly to a muffler assembly and a vehicle having the muffler assembly. Background Technology

[0002] As a core noise reduction component of the vehicle's exhaust system, the muffler is made of a multi-layered metal shell welded together. During a cold start, the high-temperature exhaust gas rapidly heats the inner metal wall, and after the vehicle stops, the temperature drops sharply to room temperature, causing alternating thermal expansion and contraction. This temperature difference cycle generates alternating stress at the welded joints, leading to metal deformation or displacement of the joint surfaces, which in turn causes a "clicking" noise, especially noticeable in cold or humid conditions.

[0003] Currently, the main technology used is reinforcement welding, which involves adding reinforcing materials or welds at the joints or welded areas to strengthen them. However, this method has significant limitations. Reinforcing welds can easily lead to new stress concentration points, and the accumulation of thermal stress may eventually induce fatigue cracks, affecting the reliability of the muffler. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a muffler assembly that can compensate for the interlayer slippage caused by the difference in the coefficients of thermal expansion between the outer wall of the supporting structure and the inner wall of the muffler housing, thereby eliminating abnormal noise and fundamentally solving the problem of uncontrollable thermal stress transmission in the muffler assembly.

[0005] A muffler assembly according to an embodiment of the present invention includes: a muffler housing; an inlet pipe and an outlet pipe, at least a portion of the inlet pipe and at least a portion of the outlet pipe extending into the muffler housing, a support structure provided inside the muffler housing, the inlet pipe and the outlet pipe respectively passing through and supported by the support structure; and a deformation compensation member connected between the outer wall of the support structure and the inner wall of the muffler housing.

[0006] According to the present invention, the muffler assembly is provided with a deformation compensation component that connects the outer wall of the support structure and the inner wall of the muffler housing. By utilizing the adaptive deformation of the deformation compensation component, the interlayer slippage caused by the difference in the material expansion coefficients between the outer wall of the support structure and the inner wall of the muffler housing is compensated, thereby eliminating abnormal noise. This fundamentally solves the problem of uncontrollable thermal stress transmission in the muffler assembly. The deformation compensation component is simple, reliable, feasible, and low in cost.

[0007] According to some embodiments of the present invention, the muffler assembly includes a first connecting part, an intermediate deformable part, and a second connecting part. The first connecting part is connected to the outer wall of the support structure, and the second connecting part is connected to the inner wall of the muffler housing. The first connecting part and the second connecting part are respectively bent and connected to both sides of the intermediate deformable part.

[0008] According to some embodiments of the present invention, in the muffler assembly, there are two intermediate deformable portions and two second connecting portions, which are provided in a one-to-one correspondence; wherein, the first connecting portion is spaced apart from the inner wall of the muffler housing, the two intermediate deformable portions are respectively connected to the two ends of the first connecting portion to form a collapsible cavity open toward the inner wall of the muffler housing together with the first connecting portion, and the two second connecting portions are respectively connected to the ends of the corresponding intermediate deformable portions away from the first connecting portion.

[0009] According to some embodiments of the present invention, a first arc-shaped transition section is connected between the first connecting portion and the intermediate deformed portion; and / or, a second arc-shaped transition section is connected between the second connecting portion and the intermediate deformed portion.

[0010] According to some embodiments of the present invention, the muffler assembly includes a plurality of deformation compensation members, which are spaced apart in the circumferential direction of the supporting structure.

[0011] According to some embodiments of the present invention, the muffler assembly has a support structure consisting of a muffler support plate. There are multiple muffler support plates, which are spaced apart within the muffler housing and divide the inner cavity of the muffler housing into multiple muffler chambers. The muffler support plates are provided with muffler holes, which connect the multiple muffler chambers sequentially.

[0012] According to some embodiments of the present invention, in the muffler assembly, at least one deformation compensation member is provided between each of the muffler support plates and the muffler housing.

[0013] According to some embodiments of the present invention, in the muffler assembly, the outer peripheral wall of the muffler support plate is formed with a connecting flange, and the deformation compensation member is connected between the connecting flange and the inner wall of the muffler housing.

[0014] According to some embodiments of the present invention, the muffler assembly further includes an intermediate connecting pipe for connecting at least two of the muffler cavities.

[0015] This utility model also proposes a vehicle.

[0016] The vehicle according to the present invention includes the muffler assembly described in any of the above embodiments.

[0017] The vehicle and the aforementioned muffler assembly have the same advantages over the prior art, which will not be repeated here.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the muffler assembly according to an embodiment of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the muffler assembly according to an embodiment of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the muffler assembly according to an embodiment of the present utility model. Figure 3 ; Figure 4 yes Figure 3 Cross-sectional view at point AA; Figure 5 yes Figure 4 Enlarged view at point B; Figure 6 This is a cross-section of the muffler assembly according to an embodiment of the present invention. Figure 1 ; Figure 7 This is a cross-section of the muffler assembly according to an embodiment of the present invention. Figure 2 .

[0020] Figure label: Muffler assembly 100, Muffler housing 1, air inlet pipe 2, air outlet pipe 3, Deformation compensation component 4, first connecting part 41, intermediate deformation part 42, second connecting part 43, first arc-shaped transition section 44, second arc-shaped transition section 45. 5. Collapse cavity; 6. Silencing support plate; 61. Silencing hole; 62. Connecting flange; 7. Silencing cavity; 8. Intermediate connecting pipe. Hook assembly 91, air inlet flange assembly 92, air outlet flange assembly 93. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following is for reference. Figures 1-7 The muffler assembly 100 according to an embodiment of the present utility model is described. The muffler assembly 100 can compensate for the interlayer slippage caused by the difference in the coefficient of thermal expansion between the outer wall of the support structure and the inner wall of the muffler housing 1, thereby eliminating abnormal noise and fundamentally solving the problem of uncontrollable thermal stress transmission in the muffler assembly 100.

[0024] like Figures 1-7 As shown, a muffler assembly 100 according to an embodiment of the present invention includes: a muffler housing 1, an air inlet pipe 2, an air outlet pipe 3, and a deformation compensation component 4.

[0025] The muffler housing 1 is the external structure of the muffler assembly 100. It mainly provides support and protection for the air inlet pipe 2, air outlet pipe 3, deformation compensation component 4 and other structural components, so that each structural component can work stably. The muffler housing 1 is used to provide a noise reduction environment to achieve noise reduction, reduce noise, and ensure the smooth and stable flow of exhaust gas.

[0026] The intake pipe 2 and the exhaust pipe 3 are used to guide the exhaust gas to flow along a set path, and finally realize the exhaust gas discharge. The muffler assembly 100 can be installed in the exhaust system. The exhaust gas discharged from the vehicle can flow along the intake pipe 2 and then enter the exhaust pipe 3. The exhaust pipe 3 can be connected to the exhaust tailpipe. Finally, the exhaust gas is discharged into the outside atmosphere through the exhaust tailpipe.

[0027] At least a portion of the intake pipe 2 and at least a portion of the outlet pipe 3 extend into the muffler housing 1, meaning the interior of the muffler housing 1 is a cavity. A portion of the intake pipe 2 and a portion of the outlet pipe 3 can extend into the muffler housing 1, allowing the outlet of the intake pipe 2 and the inlet of the outlet pipe 3 to communicate with the interior of the muffler housing 1. This allows exhaust gas to flow smoothly between the intake pipe 2, the outlet pipe 3, and the muffler housing 1. In other words, exhaust gas can enter the intake pipe 2 from the inlet of the intake pipe 2, flow along the intake pipe 2, and flow into the muffler housing 1 from the outlet of the intake pipe 2. It then flows within the muffler housing 1 and achieves noise reduction. Afterward, it enters the outlet pipe 3 from the inlet of the outlet pipe 3 and flows out from the outlet of the outlet pipe 3. This achieves a stable outflow of exhaust gas and reduces low-frequency noise.

[0028] The muffler housing 1 is equipped with a support structure, through which the air inlet pipe 2 and the air outlet pipe 3 are respectively supported. In other words, the support structure is used to support and fix the air inlet pipe 2 and the air outlet pipe 3 to ensure the installation stability of the air inlet pipe 2 and the air outlet pipe 3, so that the air inlet pipe 2 and the air outlet pipe 3 can work stably and prevent abnormal noise and gas leakage caused by shaking or tilting of the air inlet pipe 2 and the air outlet pipe 3. Through holes that are adapted to the shape and size of the air inlet pipe 2 and the air outlet pipe 3 can be provided on the support structure so that the air inlet pipe 2 and the air outlet pipe 3 can be inserted into the support structure, so as to achieve effective support of the air inlet pipe 2 and the air outlet pipe 3 by the support structure.

[0029] Furthermore, the muffler assembly 100 also includes a deformation compensation member 4, which is connected between the outer wall of the support structure and the inner wall of the muffler housing 1.

[0030] Specifically, when a vehicle is cold-started or stopped, alternating thermal expansion and contraction occur. Due to the difference in heat exposure between the muffler housing 1 and the supporting structure, their thermal expansion amounts differ. This alternating thermal expansion and contraction causes slippage at the connection surface between the inner wall of the muffler housing 1 and the outer wall of the supporting structure, resulting in abnormal noise and affecting the user experience of the muffler assembly 100. The deformation compensation component 4 is used to compensate for the interlayer slippage between the outer wall of the supporting structure and the inner wall of the muffler housing 1, thereby eliminating the abnormal noise.

[0031] The deformation compensation component 4 is connected and supported between the outer wall of the support structure and the inner wall of the muffler housing 1. That is, one side of the deformation compensation component 4 can be connected to the outer wall of the support structure, and the other side of the deformation compensation component 4 can be connected to the inner wall of the muffler housing 1. Thus, the deformation compensation component 4 is connected and supported between the outer wall of the support structure and the inner wall of the muffler housing 1. The deformation compensation component 4 can adaptively deform. When interlayer slip occurs between the outer wall of the support structure and the inner wall of the muffler housing 1 due to the difference in the coefficient of thermal expansion of the materials, the deformation compensation component 4 can adaptively deform to compensate for the interlayer slip. That is, when the interlayer slip is small, the deformation compensation component 4 can undergo small deformation, and when the interlayer slip is large, the deformation compensation component 4 can undergo large deformation to compensate for the interlayer slip and avoid gaps or displacements between the outer wall of the support structure and the inner wall of the muffler housing 1, which would cause abnormal noise.

[0032] In the prior art, welding joints are reinforced to avoid abnormal noise. However, reinforcing the weld seam can easily lead to new stress concentration points, and the accumulation of thermal stress may eventually induce fatigue cracks, affecting the reliability of the muffler assembly. In contrast, this application fundamentally solves the problem of uncontrollable thermal stress transmission in the muffler assembly 100. By utilizing the adaptive deformation of the deformation compensation component 4, the interlayer slippage caused by the difference in material expansion coefficients between the outer wall of the supporting structure and the inner wall of the muffler housing 1 is compensated, thereby eliminating abnormal noise. The deformation compensation component is simple, reliable, highly feasible, and low in cost.

[0033] It should be noted that the deformation compensation component 4 can be set as an elastic component such as a metal sheet, rubber part, or spring that can undergo elastic deformation and return to its initial state. The deformation compensation component 4 can also be set as a cavity or deformation space with deformation and collapse, so that the deformation compensation component 4 can deform within a certain deformation space, thereby adapting to the interlayer slippage between the outer wall of the support structure and the inner wall of the muffler housing 1. The deformation compensation component 4 can be set in various ways and can be flexibly selected, and can be flexibly set according to actual needs.

[0034] According to the muffler assembly 100 of this utility model embodiment, by setting a deformation compensation component 4 between the outer wall of the support structure and the inner wall of the muffler housing 1, the adaptive deformation of the deformation compensation component 4 is used to compensate for the interlayer slippage caused by the difference in the material expansion coefficient between the outer wall of the support structure and the inner wall of the muffler housing 1, thereby eliminating abnormal noise and fundamentally solving the problem of uncontrollable thermal stress transmission in the muffler assembly 100. The deformation compensation component 4 is simple, reliable, feasible, and low in cost.

[0035] In some embodiments, the deformation compensation member 4 includes a first connecting portion 41, an intermediate deformation portion 42, and a second connecting portion 43. One of the first connecting portion 41 and the second connecting portion 43 is connected to the outer wall of the support structure, and the other of the first connecting portion 41 and the second connecting portion 43 is connected to the inner wall of the muffler housing 1. The first connecting portion 41 and the second connecting portion 43 are respectively bent and connected to both sides of the intermediate deformation portion 42.

[0036] Specifically, the first connecting part 41 can be connected to the outer wall of the support structure, and the second connecting part 43 can be connected to the inner wall of the muffler housing 1. Alternatively, the first connecting part 41 can be connected to the inner wall of the muffler housing 1, and the second connecting part 43 can be connected to the outer wall of the support structure. This can be flexibly configured. The intermediate deformation part 42 is the part of the deformation compensation member 4 that mainly undergoes deformation. The automatic deformation of the intermediate deformation part 42 compensates for the interlayer slippage between the outer wall of the support structure and the inner wall of the muffler housing 1.

[0037] The first connecting part 41 can be welded to the outer wall of the supporting structure or the inner wall of the muffler housing 1, or the first connecting part 41 can also be interference-fitted to the outer wall of the supporting structure or the inner wall of the muffler housing 1. The second connecting part 43 can also be welded to the inner wall of the muffler housing 1 or the outer wall of the supporting structure, or the second connecting part 43 can also be interference-fitted to the inner wall of the muffler housing 1 or the outer wall of the supporting structure. One side of the intermediate deformable part 42 can be bent and connected to the first connecting part 41, and the other side of the intermediate deformable part 42 can be bent and connected to the second connecting part 43. Thus, the first connecting part 41 and the second connecting part 43 are respectively bent and connected to the two sides of the intermediate deformable part 42, thereby realizing that the deformation compensation member 4 is connected between the outer wall of the supporting structure and the inner wall of the muffler housing 1, so that the intermediate deformable part 42 can be effectively deformed.

[0038] Therefore, by providing a deformation compensation member 4 including a first connecting part 41, an intermediate deformation part 42, and a second connecting part 43, a stable connection between the deformation compensation member 4 and the outer wall of the support structure and the inner wall of the muffler housing 1 can be achieved, preventing the deformation compensation member 4 from falling off or shifting. It also allows the deformation compensation member 4 to undergo effective deformation to compensate for the interlayer slippage between the outer wall of the support structure and the inner wall of the muffler housing 1.

[0039] In some embodiments, the intermediate deformable portion 42 and the second connecting portion 43 are both provided in pairs and in a one-to-one correspondence, that is, one intermediate deformable portion 42 is provided with one second connecting portion 43, and the other intermediate deformable portion 42 is provided with another second connecting portion 43.

[0040] Furthermore, the first connecting part 41 is spaced apart from the inner wall of the muffler housing 1, that is, there is a certain gap between the first connecting part 41 and the inner wall of the muffler housing 1. The two intermediate deformable parts 42 are respectively connected to the two ends of the first connecting part 41 to form a collapsible cavity 5 open towards the inner wall of the muffler housing 1 together with the first connecting part 41. The two second connecting parts 43 are respectively connected to the ends of the corresponding intermediate deformable parts 42 away from the first connecting part 41, so that the two second connecting parts 43 are close to the inner wall of the muffler housing 1 to connect smoothly with the inner wall of the muffler housing 1.

[0041] Therefore, the two intermediate deformation parts 42 can be deformed to increase or decrease the size of the collapse cavity 5, thereby achieving collapse and adaptive compensation for the interlayer slip between the outer wall of the support structure and the inner wall of the muffler housing 1. This is flexible, convenient, simple and reliable.

[0042] In a specific embodiment, such as Figure 4 and Figure 5 As shown, there are two second connecting parts 43, two intermediate deformable parts 42, and one first connecting part 41. The two intermediate deformable parts 42 are respectively connected to the two ends of the first connecting part 41, and the two second connecting parts 43 are respectively connected to the ends of the corresponding intermediate deformable parts 42 away from the first connecting part 41, thereby forming a deformation compensation member 4 with a "U"-shaped opening, i.e., a collapse cavity 5. After the deformation compensation member 4 is connected between the muffler housing 1 and the support structure, that is, after the first connecting part 41 is attached to the outer wall of the support structure and the second connecting part 43 is attached to the inner wall of the muffler housing 1, the collapse cavity 5 is open towards the inner wall of the muffler housing 1. When the interlayer slip increases, the collapse cavity 5 can increase to compensate, and when the interlayer slip decreases, the collapse cavity 5 can decrease to compensate. Of course, the two intermediate deformation parts 42 and the first connecting part 41 can also jointly form a collapse cavity 5 that opens toward the outer wall of the support structure. That is, the first connecting part 41 can also be connected to the inner wall of the muffler housing 1, and the two second connecting parts 43 can be connected to the outer wall of the support structure. This is a flexible option.

[0043] In some embodiments, such as Figure 5As shown, a first arc-shaped transition section 44 connects the first connecting part 41 and the intermediate deformable part 42. The first arc-shaped transition section 44 connects the first connecting part 41 and the intermediate deformable part 42, preventing the formation of sharp corners between the first connecting part 41 and the intermediate deformable part 42. This reduces stress concentration, improves the connection stability and reliability between the first connecting part 41 and the intermediate deformable part 42, prevents breakage between the first connecting part 41 and the intermediate deformable part 42, ensures effective and reliable deformation of the intermediate deformable part 42, and thus improves the service life of the deformation compensation part 4.

[0044] In other embodiments, such as Figure 5 As shown, a second arc-shaped transition section 45 connects the second connecting part 43 and the intermediate deformable part 42. The second arc-shaped transition section 45 connects the second connecting part 43 and the intermediate deformable part 42, preventing the formation of sharp corners between the second connecting part 43 and the intermediate deformable part 42. This reduces stress concentration, improves the connection stability and reliability between the second connecting part 43 and the intermediate deformable part 42, prevents breakage between the second connecting part 43 and the intermediate deformable part 42, ensures effective and reliable deformation of the intermediate deformable part 42, and thus improves the service life of the deformation compensation part 4.

[0045] In some embodiments, there are multiple deformation compensation members 4, and the multiple deformation compensation members 4 are spaced apart in the circumferential direction of the support structure.

[0046] In other words, the deformation compensation component 4 can be set to two, three, four or more, and the multiple deformation compensation components 4 are distributed at intervals in the circumferential direction of the support structure. They can be evenly or unevenly distributed at a certain distance. Thus, the multiple deformation compensation components 4 can effectively compensate for the interlayer slippage between the outer wall of the support structure and the inner wall of the muffler housing 1 in the circumferential direction of the support structure. This prevents abnormal noise from occurring due to the lack of compensation from the deformation compensation component 4 at any position in the circumferential direction, thereby improving the compensation effect of the deformation compensation component 4 and improving the effect of eliminating abnormal noise.

[0047] In some embodiments, the support structure is constructed as a sound-absorbing support plate 6, and there are multiple sound-absorbing support plates 6. The multiple sound-absorbing support plates 6 are spaced apart in the muffler housing 1 and divide the inner cavity of the muffler housing 1 into multiple sound-absorbing cavities 7. The sound-absorbing support plate 6 is provided with sound-absorbing holes 61 and the multiple sound-absorbing cavities 7 are connected in sequence.

[0048] Specifically, the sound-absorbing support plate 6 can guide the airflow path, allowing sound waves to be reflected and refracted within the muffler housing 1 to reduce noise. The sound-absorbing support plate 6 can be configured as two, three, four, or more, and multiple sound-absorbing support plates 6 can be spaced apart within the muffler housing 1 along the airflow direction to divide the inner cavity of the muffler housing 1 into multiple sound-absorbing cavities 7. Thus, through multiple reflections and refractions by the multiple sound-absorbing support plates 6, the airflow can dissipate sound energy within the multiple sound-absorbing cavities 7, achieving noise reduction.

[0049] In addition, the sound-absorbing support plate 6 can be provided with sound-absorbing holes 61 and multiple sound-absorbing cavities 7 can be connected in sequence, so that the sound-absorbing holes 61 and multiple sound-absorbing cavities 7 can form a resonant structure, which can effectively consume sound energy and form a multi-level sound-absorbing structure, so that noise of different frequency bands can enter the corresponding cavity for processing.

[0050] In a specific embodiment, such as Figure 6 and Figure 7 As shown, the support structure consists of three sound-absorbing support plates 6. These three plates are spaced apart along the length of the muffler housing 1, dividing the inner cavity of the muffler housing 1 into four sound-absorbing chambers 7. The first sound-absorbing support plate 6 on the left side does not have a sound-absorbing hole 61, while the second and third plates do, connecting the second, third, and fourth sound-absorbing chambers 7 sequentially. An intake pipe 2 extends from the first sound-absorbing chamber 7 to the fourth, and an exhaust pipe 3 extends from the fourth to the first, forming a flow path for airflow within the muffler housing 1. A sound-absorbing hole can also be provided on the intake pipe 2 to connect the first sound-absorbing chamber 7 to the intake pipe 2, achieving initial sound energy dissipation. Furthermore, connecting the third sound-absorbing chamber 7 to the intake pipe 2 further dissipates sound energy.

[0051] In practical design, the silencing hole 61 can be set as a circular hole, an elongated hole, an elliptical hole, or other shapes to effectively dissipate sound energy and guide the airflow to flow stably along a certain path. Furthermore, multiple silencing holes 61 can be set on the silencing support plate 6, and these multiple silencing holes 61 can be arranged to avoid interference with the air inlet pipe 2 and the air outlet pipe 3.

[0052] In some embodiments, at least one deformation compensation member 4 is provided between each silencing support plate 6 and the muffler housing 1.

[0053] In other words, one, two, three or more deformation compensation components 4 can be provided between each silencing support plate 6 and the muffler housing 1, so that the interlayer slippage between each silencing support plate 6 and the muffler housing 1 can be compensated by one, two, three or more deformation compensation components 4, thereby avoiding interlayer slippage between each silencing support plate 6 and the muffler housing 1, which would cause abnormal noise.

[0054] Specifically, such as Figure 6 and Figure 7 As shown, the muffler assembly 100 is provided with three muffler support plates 6, such as... Figure 4 As shown, three deformation compensation components 4 are provided between the three noise reduction support plates 6 and the muffler housing 1, and the three deformation compensation components 4 are distributed circumferentially along the noise reduction support plates 6.

[0055] It should be noted that the number of deformation compensation components 4 between each silencing support plate 6 and the muffler housing 1 is not limited to that described in this embodiment, and can be flexibly set according to actual needs.

[0056] In some embodiments, the outer peripheral wall of the silencing support plate 6 is formed with a connecting flange 62, and the deformation compensation member 4 is connected between the connecting flange 62 and the inner wall of the muffler housing 1.

[0057] Specifically, such as Figure 6 As shown, the outer peripheral wall of the silencing support plate 6 has a connecting flange 62 that faces the inner wall of the muffler housing 1. The connecting flange 62 increases the connection area between the silencing support plate 6 and the deformation compensation member 4, ensuring that the deformation compensation member 4 can be stably and reliably connected to the silencing support plate 6. Figure 5 As shown, the surface of the first connecting part 41 is in contact with the surface of the connecting flange 62, and thus a welding connection can be made, thereby realizing that the deformation compensation part 4 is stably connected between the connecting flange 62 and the inner wall of the muffler housing 1, preventing the deformation compensation part 4 from falling off or shifting.

[0058] In some embodiments, the muffler assembly 100 further includes an intermediate connecting pipe 8 for connecting at least two muffler cavities 7.

[0059] In other words, the intermediate connecting pipe 8 can connect two, three or more silencing cavities 7, so that the intermediate connecting pipe 8 and the silencing cavity 7 can work together to cause interference cancellation of sound waves during propagation, thereby greatly reducing exhaust noise. It can also reduce noise in different frequency bands and improve the noise reduction effect.

[0060] Specifically, such as Figure 6 and Figure 7As shown, a silencing hole can be provided on the intermediate connecting pipe 8 so that the intermediate connecting pipe 8 connects the three silencing chambers 7, thereby achieving a significant reduction in exhaust noise.

[0061] In other embodiments, such as Figures 1-3 As shown, multiple spaced-apart hook assemblies 91 can be installed on the muffler housing 1. These hook assemblies 91 can be welded to the muffler housing 1 to ensure reliable and stable connection. The hook assemblies 91 can be connected to the vehicle body or frame hooks via rubber hangers, thus enabling stable installation of the muffler assembly 100 on the vehicle body or frame. This also facilitates disassembly of the muffler assembly 100, allowing for quick removal and repair or replacement in case of damage, providing flexibility and convenience.

[0062] And such as Figures 1-3 As shown, when three hook assemblies 91 are provided, one hook assembly 91 can be connected to the front end face of the muffler housing 1, and the other two hook assemblies 91 can be connected to the rear end face of the muffler housing 1 at intervals. Thus, the three hook assemblies 91 are arranged in a triangle. The triangle has stability, which can effectively improve the installation stability and reliability of the muffler assembly 100 and prevent it from falling.

[0063] In other embodiments, such as Figures 1-3 As shown, an intake flange assembly 92 can be installed at the intake port of the intake pipe 2 to connect the intake pipe 2 to the front muffler or other structures, and an exhaust flange assembly 93 can be installed at the exhaust port of the exhaust pipe 3 to connect the exhaust pipe 3 to the exhaust tailpipe.

[0064] This utility model also proposes a vehicle.

[0065] The vehicle according to the present invention includes the muffler assembly 100 of any of the above embodiments.

[0066] According to the vehicle of this utility model embodiment, by setting a deformation compensation component 4 connecting the outer wall of the support structure and the inner wall of the muffler housing 1, the adaptive deformation of the deformation compensation component 4 can compensate for the interlayer slippage caused by the difference in the material expansion coefficients between the outer wall of the support structure and the inner wall of the muffler housing 1, thereby eliminating abnormal noise. This fundamentally solves the problem of uncontrollable thermal stress transmission in the muffler assembly 100. The deformation compensation component 4 is simple, reliable, feasible, and low in cost, and can effectively reduce vehicle noise and improve driving comfort.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A muffler assembly, characterized in that, include: Muffler housing (1); An intake pipe (2) and an exhaust pipe (3) are provided, at least a portion of the intake pipe (2) and at least a portion of the exhaust pipe (3) extend into the muffler housing (1), and a support structure is provided inside the muffler housing (1), and the intake pipe (2) and the exhaust pipe (3) are respectively supported by the support structure. Deformation compensation component (4) is connected between the outer wall of the support structure and the inner wall of the muffler housing (1).

2. The muffler assembly according to claim 1, characterized in that, The deformation compensation component (4) includes a first connecting part (41), an intermediate deformation part (42), and a second connecting part (43). One of the first connecting part (41) and the second connecting part (43) is connected to the outer wall of the support structure, and the other of the first connecting part (41) and the second connecting part (43) is connected to the inner wall of the muffler housing (1). The first connecting part (41) and the second connecting part (43) are respectively bent and connected to both sides of the intermediate deformation part (42).

3. The muffler assembly according to claim 2, characterized in that, The intermediate deformable part (42) and the second connecting part (43) are both provided in pairs and correspond to each other; The first connecting part (41) is spaced apart from the inner wall of the muffler housing (1), and the two intermediate deformable parts (42) are respectively connected to the two ends of the first connecting part (41) to form a collapsible cavity (5) open to the inner wall of the muffler housing (1) together with the first connecting part (41). The two second connecting parts (43) are respectively connected to the ends of the corresponding intermediate deformable parts (42) away from the first connecting part (41).

4. The muffler assembly according to claim 2 or 3, characterized in that, A first arc-shaped transition section (44) connects the first connecting part (41) and the intermediate deformable part (42). And / or, a second arc-shaped transition section (45) is connected between the second connecting part (43) and the intermediate deformed part (42).

5. The muffler assembly according to claim 1, characterized in that, There are multiple deformation compensation members (4), and the multiple deformation compensation members (4) are distributed at intervals in the circumferential direction of the support structure.

6. The muffler assembly according to claim 1, characterized in that, The supporting structure is constructed as a sound-absorbing support plate (6), and there are multiple sound-absorbing support plates (6). The multiple sound-absorbing support plates (6) are spaced apart in the muffler housing (1) and divide the inner cavity of the muffler housing (1) into multiple sound-absorbing cavities (7). The sound-absorbing support plate (6) is provided with sound-absorbing holes (61) and the multiple sound-absorbing cavities (7) are connected in sequence.

7. The muffler assembly according to claim 6, characterized in that, At least one deformation compensation member (4) is provided between each of the sound-absorbing support plates (6) and the muffler housing (1).

8. The muffler assembly according to claim 6, characterized in that, The outer peripheral wall of the silencing support plate (6) is formed with a connecting flange (62), and the deformation compensation member (4) is connected between the connecting flange (62) and the inner wall of the muffler housing (1).

9. The muffler assembly according to claim 6, characterized in that, It also includes an intermediate connecting pipe (8) for connecting at least two of the silencing cavities (7).

10. A vehicle, characterized in that, The muffler assembly included in any one of claims 1-9.

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