Silencer and vehicle

Abstract

The utility model discloses a silencer and a vehicle. The silencer comprises a shell, a silencer body, a driving device and a driving device, wherein a silencing space is formed in the shell; the partition plate is arranged in the silencing space, and an avoiding hole is formed in the partition plate; the exhaust pipe is arranged in the avoiding hole in a penetrating manner; the shell and / or the partition plate are / is provided with an elastic supporting piece, and the elastic supporting piece is connected with the exhaust pipe so as to support the exhaust pipe. The exhaust pipe is supported by the elastic supporting piece, the elastic supporting piece has certain elasticity, the elastic supporting piece absorbs stress, the probability of disconnection between the exhaust pipe and the elastic supporting piece is reduced, the exhaust pipe is fixed to the elastic supporting piece all the time, abnormal sound is avoided, the overall structure is simple, practicability is high, and the exhaust pipe is suitable for popularization and application. And the replaceability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a muffler and a vehicle. Background Art

[0002] In the related art, a plurality of partitions are provided in the vehicle muffler, and the exhaust pipe is welded to the partitions. When the vehicle engine is working, the gas flow velocity and temperature in the exhaust pipe are high, and the exhaust pipe and the partition may be disconnected, causing the exhaust pipe to shake and generate noise. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a muffler to avoid abnormal noise.

[0004] The muffler according to the embodiment of the utility model includes: a shell, a muffler space is provided in the shell; a partition plate, the partition plate is arranged in the muffler space, and the partition plate is provided with a avoidance hole; an exhaust pipe, the exhaust pipe is passed through the avoidance hole; wherein, an elastic support member is provided on the shell and / or the partition plate, and the elastic support member is connected to the exhaust pipe to support the exhaust pipe.

[0005] The muffler according to the embodiment of the utility model supports the exhaust pipe by using an elastic support member. The elastic support pipe itself has a certain elasticity. The elastic support member absorbs stress, thereby reducing the probability of disconnection between the exhaust pipe and the elastic support member, so that the exhaust pipe is always fixed on the elastic support member to avoid abnormal noise. The overall structure is simple, the practicability is strong, and the replaceability is high.

[0006] In some embodiments, there are a plurality of elastic support members, and the plurality of elastic support members are spaced apart along the circumferential direction of the exhaust pipe.

[0007] In some embodiments, at least some of the plurality of elastic support members are symmetrically arranged about the exhaust pipe.

[0008] In some embodiments, the exhaust pipe is connected to the elastic support member via a welding portion.

[0009] In some embodiments, the elastic support member includes: a connecting portion, the connecting portion connected to the shell or the partition; an arc portion, the arc portion connecting the connecting portion toward one end of the exhaust pipe, and the arc portion is connected to the exhaust pipe through the welding portion.

[0010] In some embodiments, the elastic support member further includes: a fitting portion, the fitting portion connecting the end of the arc portion away from the connecting portion, the fitting portion being configured to fit the outer wall of the exhaust pipe, and the fitting portion being connected to the exhaust pipe via a welding portion.

[0011] In some embodiments, the partition includes: a main body portion, the avoidance hole is provided in the main body portion; a bracket portion, the bracket portion is integrally formed with the main body portion, and the bracket portion is configured as the elastic support member.

[0012] In some embodiments, an opening groove is provided on the main body portion, the opening groove is connected to the avoidance hole, the bracket portion is at least partially provided in the opening groove, and extends from a side of the opening groove away from the avoidance hole toward the avoidance hole.

[0013] In some embodiments, the length of the welding portion is L, the circumference of the exhaust pipe is C, and 1 / 6≤L / C≤1 / 2.

[0014] A vehicle according to an embodiment of the utility model includes the above-mentioned muffler.

[0015] According to the vehicle of the embodiment of the utility model, the exhaust pipe is supported by an elastic support member. The elastic support pipe itself has a certain elasticity. The elastic support member absorbs stress, thereby reducing the probability of disconnection between the exhaust pipe and the elastic support member, so that the exhaust pipe is always fixed on the elastic support member to avoid abnormal noise. The overall structure is simple, practical, and highly replaceable.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is an appearance diagram of a muffler in an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the coordination between the partition plate and the exhaust pipe in the embodiment of the utility model;

[0020] Figure 3 for Figure 2 The local enlarged view of point I in the middle;

[0021] Figure 4 It is a schematic diagram of the positions of the connecting portion, the arc portion and the fitting portion in the embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the cooperation between the main body and the bracket in the embodiment of the utility model;

[0023] Figure 6 for Figure 1 Schematic diagram of the internal structure of the muffler.

[0024] Reference numerals:

[0025] 100. Muffler;

[0026] 10. Shell; 11. Noise-absorbing space;

[0027] 20. partition; 21. avoidance hole; 22. main body; 221. opening groove; 23. bracket;

[0028] 30. Exhaust pipe; 31. Welding part;

[0029] 40. Elastic supporting member; 41. Connecting portion; 42. Arc-shaped portion; 43. Fitting portion. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Unless otherwise specified, the front-to-back direction in the present application is the longitudinal direction of the vehicle, that is, the X direction; the left-right direction is the lateral direction of the vehicle, that is, the Y direction; and the up-down direction is the vertical direction of the vehicle, that is, the Z direction.

[0034] Reference below Figure 1-Figure 6 A muffler 100 according to an embodiment of the present invention is described.

[0035] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6 According to an embodiment of the present invention, a muffler 100 includes a shell 10 , a partition 20 and an exhaust pipe 30 .

[0036] A sound-absorbing space 11 is provided in the shell 10. A partition 20 is provided in the sound-absorbing space 11, and a avoidance hole 21 is provided in the partition 20. An exhaust pipe 30 is passed through the avoidance hole 21. An elastic support member 40 is provided on the shell 10 and / or the partition 20, and the elastic support member 40 is connected to the exhaust pipe 30 to support the exhaust pipe 30.

[0037] The partition 20 is disposed in the muffler space 11 , and the partition 20 divides the larger muffler space 11 into a plurality of small spaces. The exhaust pipe 30 passes through the partition 20 through the avoidance hole 21 .

[0038] Specifically, the solution of eliminating exhaust noise by providing a plurality of silencer hole structures on the partition is a prior art and will not be described in detail here.

[0039] In the related art, a plurality of partitions are provided in the vehicle muffler, and the exhaust pipe is welded to the partitions. When the vehicle engine is working, the gas flow velocity and temperature in the exhaust pipe are high, and the exhaust pipe and the partition may be disconnected, causing the exhaust pipe to shake and generate noise.

[0040] After a large number of experiments, the inventor found that when the vehicle engine is working, the welding part between the exhaust pipe and the partition generates large stress, and the stress exceeds the tensile strength, resulting in problems such as open welding and cracking, which may eventually cause the exhaust pipe and the partition to be disconnected, and the exhaust pipe shakes and produces abnormal noise.

[0041] In the embodiment of the utility model, an elastic support member 40 is used to support the exhaust pipe 30. The elastic support pipe itself has a certain elasticity. When the vehicle engine is working, the elastic support member 40 is elastically deformed. The elastic support member 40 absorbs stress, so that the stress at the connection portion 41 between the elastic support member 40 and the exhaust pipe 30 is relatively small, thereby reducing the probability of disconnection between the exhaust pipe 30 and the elastic support member 40, so that the exhaust pipe 30 is always fixed on the elastic support member 40 to avoid abnormal noise.

[0042] Among them, the elastic support member 40 can be installed on the shell 10, and the elastic support member 40 fixed on the shell 10 extends toward the exhaust pipe 30 and is connected to the exhaust pipe 30, and the avoidance hole 21 plays an avoidance role; or, the elastic support member 40 can also be installed on the partition 20, and the elastic support member 40 installed on the partition 20 is closer to the exhaust pipe 30, which is more convenient to set up and reduces costs; or, part of the elastic support member 40 is installed on the shell 10, and the other part is installed on the partition 20; or, there are multiple elastic support members 40, some of which are installed on the shell 10, and other elastic support members 40 are installed on the partition 20.

[0043] The elastic support member 40 itself has a certain elasticity. Specifically, the elastic support member 40 is a metal plate, which has the strength to maintain the shape and also has a certain elastic deformation ability. For example, the material of the metal plate is stainless steel, and can also be aluminum-plated steel or carbon steel.

[0044] Specifically, the inventor of the utility model conducted experiments on actual objects and found that the stress of the connection part 41 between the elastic support member 40 and the exhaust pipe 30 in the embodiment of the utility model is 20.31 MPa, while the stress of the connection part between the exhaust pipe and the partition in the related technology is 36 MPa, and the tensile strength of the partition is 25 MPa, 20.31 MPa is less than 25 MPa, thereby avoiding disconnection between the exhaust pipe 30 and the elastic support member 40.

[0045] According to the muffler 100 of the embodiment of the utility model, the exhaust pipe 30 is supported by using an elastic support member 40. The elastic support pipe itself has a certain elasticity, and the elastic support member 40 absorbs stress, thereby reducing the probability of disconnection between the exhaust pipe 30 and the elastic support member 40, so that the exhaust pipe 30 is always fixed on the elastic support member 40 to avoid abnormal noise. The overall structure is simple, practical, and highly replaceable.

[0046] Reference Figure 3 , Figure 4 In some embodiments, there are multiple elastic support members 40 , and the multiple elastic support members 40 are arranged at intervals along the circumferential direction of the exhaust pipe 30 .

[0047] The plurality of elastic support members 40 are disposed around the exhaust pipe 30 , and the plurality of elastic support members 40 are respectively connected to the exhaust pipe 30 .

[0048] In the above solution, a plurality of elastic support members 40 are arranged at intervals in the circumferential direction of the exhaust pipe 30 , and the plurality of elastic support members 40 support the exhaust pipe 30 from multiple directions, thereby improving the stability of the exhaust pipe 30 .

[0049] Specifically, there are two elastic support members 40, which are respectively installed on the left and right sides of the exhaust pipe 30, and the two elastic support members 40 support the exhaust pipe 30 from the left and right sides respectively; or, there are four elastic support members 40, which are respectively installed at the front, back, left and right four positions of the exhaust pipe 30, and the four elastic support members 40 support the exhaust pipe 30 from the front, back, left and right four positions respectively.

[0050] Reference Figure 3 , Figure 4 In some embodiments, at least some of the multiple elastic support members 40 are symmetrically arranged about the exhaust pipe 30.

[0051] Among them, the exhaust pipe 30 is located in the middle of the symmetrical elastic support members 40 . The multiple elastic support members 40 can be plural, and each elastic support member 40 is provided with symmetrical elastic support members 40 , or some of the elastic support members 40 are not provided with symmetrical elastic support members 40 .

[0052] In the above solution, by arranging at least part of the multiple elastic support members 40 symmetrically about the exhaust pipe 30 , the exhaust pipe 30 is subjected to force on at least two opposite sides, thereby further improving the stability of the exhaust pipe 30 .

[0053] In some embodiments, the elastic support member 40 is plugged into the exhaust pipe 30. In other embodiments, the elastic support member 40 is fixed to the exhaust pipe 30 by bolts.

[0054] Reference Figure 3 In some embodiments, the exhaust pipe 30 is connected to the elastic support member 40 via a welding portion 31 .

[0055] The exhaust pipe 30 is connected to the elastic support member 40 by welding, and the welding trace is a welding portion 31 .

[0056] In the above solution, the exhaust pipe 30 and the elastic support member 40 are connected by welding, thereby further increasing the connection strength and improving the stability.

[0057] Reference Figure 4 In some embodiments, the elastic support member 40 includes: a connecting portion 41 and an arc portion 42 .

[0058] The connecting portion 41 is connected to the housing 10 or the partition plate 20 . The arc portion 42 is connected to one end of the connecting portion 41 facing the exhaust pipe 30 , and the arc portion 42 is connected to the exhaust pipe 30 through the welding portion 31 .

[0059] The arc portion 42 has a certain curvature, and the structure of the arc portion 42 makes the elastic support member 40 longer.

[0060] In the above solution, the performance of the elastic support member 40 is enhanced by utilizing the structure of the arc-shaped portion 42 , so that the elastic support member 40 can cope with larger vibrations, thereby absorbing more stress and reducing the probability of cracking of the welding portion 31 .

[0061] Reference Figure 4 In some embodiments, the elastic support member 40 further includes: a fitting portion 43, the fitting portion 43 connecting the end of the arc portion 42 away from the connecting portion 41, the fitting portion 43 being configured to fit the outer wall of the exhaust pipe 30, and the fitting portion 43 being connected to the exhaust pipe 30 via the welding portion 31.

[0062] The shape of the fitting portion 43 fits the outer wall of the exhaust pipe 30 , so that the fitting portion 43 fits the outer wall of the exhaust pipe 30 in a conforming manner.

[0063] In the above scheme, by providing the fitting portion 43 to fit the outer wall of the exhaust pipe 30, the forming of the welding portion 31 is facilitated, the production difficulty is reduced, and the contact area is increased, which is beneficial to increase the welding portion 31 and improve the connection stability.

[0064] In some embodiments, the elastic support member 40 is configured as a support plate, and the support plate can be welded to the partition plate 20, or the support plate can be fixed to the partition plate 20 by bolts.

[0065] Reference Figure 5 In some embodiments, the partition 20 includes: a main body portion 22 and a bracket portion 23 .

[0066] The avoidance hole 21 is provided in the main body 22 . The bracket portion 23 is integrally formed in the main body 22 , and the bracket portion 23 is configured as an elastic support member 40 .

[0067] The bracket portion 23 is integrally formed with the main body portion 22 . In other words, the bracket portion 23 extends from the main body portion 22 , and the exhaust pipe 30 is fixed by the bracket portion 23 .

[0068] In the above solution, the bracket portion 23 is integrally formed with the main body portion 22 , thereby reducing the number of parts and processes.

[0069] Reference Figure 5 In some embodiments, an opening slot 221 is provided on the main body 22 , the opening slot 221 is connected to the avoidance hole 21 , the bracket portion 23 is at least partially disposed in the opening slot 221 , and extends from a side of the opening slot 221 away from the avoidance hole 21 toward the avoidance hole 21 .

[0070] The opening groove 221 is a groove structure on the main body 22 corresponding to the bracket 23. Specifically, the bracket 23 is initially formed by cutting the partition 20, and the opening groove 221 is a groove structure formed by the bracket 23 being separated from the main body 22, and part of the bracket 23 is still connected to the main body 22, and no additional connection is required.

[0071] In the above scheme, the material of the partition 20 is fully utilized by setting the open groove 221 to connect the avoidance hole 21, and the bracket part 23 extends to the avoidance hole 21, and the exhaust pipe 30 is passed through the avoidance hole 21. Compared with the scheme in which the bracket part is set outside the opening groove in the related technology, the length of the bracket part 23 in the embodiment of the utility model can be set smaller, the stability of the bracket part 23 is better, and the opening groove 221 avoids the bracket part 23, the vibration amplitude of the bracket part 23 is larger, and the performance is improved.

[0072] Reference Figure 5 In some embodiments, the length of the welding portion 31 is L, the circumference of the exhaust pipe 30 is C, and 1 / 6≤L / C≤1 / 2.

[0073] The length L of the welding portion 31 is the total length. For example, there are multiple welding portions 31 , and the total length of the multiple welding portions 31 is L.

[0074] In the above solution, by setting L / C within the range of 1 / 6 to 1 / 2, the welding cost is reduced and the connection stability between the exhaust pipe 30 and the elastic support member 40 is improved.

[0075] For example, L / C is 1 / 6; or, L / C is 1 / 5; or, L / C is 1 / 4; or, L / C is 1 / 3; or, L / C is 1 / 2.

[0076] Specifically, the length of the elastic support member 40 is A, 45 mm ≤ A ≤ 55. Specifically, A is 50 mm.

[0077] Specifically, the width of the elastic support member 40 is B, 35 mm ≤ B ≤ 55 mm. Specifically, B is 45 mm.

[0078] A vehicle according to an embodiment of the present utility model includes the above-mentioned muffler 100 .

[0079] According to the vehicle of the embodiment of the utility model, the exhaust pipe 30 is supported by using an elastic support member 40. The elastic support pipe itself has a certain elasticity. The elastic support member 40 absorbs stress, which reduces the probability of disconnection between the exhaust pipe 30 and the elastic support member 40, so that the exhaust pipe 30 is always fixed on the elastic support member 40 to avoid abnormal noise. The overall structure is simple, practical, and highly replaceable.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A muffler, characterized in that: include: A housing (10), wherein a sound-absorbing space is provided in the housing (10); A partition (20), the partition (20) being arranged in the anechoic space, and the partition (20) being provided with an avoidance hole (21); An exhaust pipe (30), wherein the exhaust pipe (30) is passed through the avoidance hole (21); wherein: An elastic support member (40) is provided on the shell (10) and / or the partition (20), and the elastic support member (40) is connected to the exhaust pipe (30) to support the exhaust pipe (30).

2. The muffler according to claim 1, characterized in that: There are a plurality of elastic support members (40), and the plurality of elastic support members (40) are arranged at intervals along the circumferential direction of the exhaust pipe (30).

3. The muffler according to claim 2, characterized in that: At least some of the multiple elastic support members (40) are symmetrically arranged with respect to the exhaust pipe (30).

4. The muffler according to claim 1, characterized in that: The exhaust pipe (30) and the elastic support member (40) are connected via a welding portion (31).

5. The muffler according to claim 4, characterized in that: The elastic support member (40) comprises: A connecting portion (41), wherein the connecting portion (41) is connected to the housing (10) or the partition (20); An arc-shaped portion (42), the arc-shaped portion (42) being connected to one end of the connecting portion (41) facing the exhaust pipe (30), and the arc-shaped portion (42) being connected to the exhaust pipe (30) via the welding portion (31).

6. The muffler according to claim 5, characterized in that: The elastic support member (40) further comprises: a fitting portion (43), the fitting portion (43) being connected to an end of the arc-shaped portion (42) away from the connecting portion (41), the fitting portion (43) being configured to fit the outer wall of the exhaust pipe (30), and the fitting portion (43) being connected to the exhaust pipe (30) via the welding portion (31).

7. The muffler according to claim 4, characterized in that: The partition (20) comprises: A main body (22), wherein the avoidance hole (21) is arranged on the main body (22); A bracket portion (23), wherein the bracket portion (23) is integrally formed with the main body portion (22), and the bracket portion (23) is configured as the elastic support member (40).

8. The muffler according to claim 7, characterized in that: An opening groove (221) is provided on the main body (22), the opening groove (221) is connected to the avoidance hole (21), and the bracket portion (23) is at least partially disposed in the opening groove (221) and extends from a side of the opening groove (221) away from the avoidance hole (21) towards the avoidance hole (21).

9. The muffler according to claim 4, characterized in that: The length of the welding portion (31) is L, the circumference of the exhaust pipe (30) is C, and 1 / 6≤L / C≤1 / 2.

10. A vehicle, characterized in that: A muffler (100) comprising any one of claims 1 to 9.

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