Muffler and vehicle

Abstract

The application provides a muffler and a vehicle, and relates to the technical field of vehicles.The muffler comprises a shell, an air outlet pipe and a drain pipe; the air outlet pipe comprises a first sub-pipe, a connecting elbow and a second sub-pipe which are sequentially connected; the first sub-pipe is located in the interior of the shell; the connecting elbow and the second sub-pipe are located outside the shell; the first sub-pipe and the second sub-pipe are arranged in parallel and are spaced apart; the drain pipe is arranged outside the shell; one end of the drain pipe is in communication with the interior of the shell; and the other end of the drain pipe is in communication with the second sub-pipe.The muffler can not only enhance the sound attenuation effect, but also effectively prevent the problem that water entering the shell in cold weather cannot be drained, thereby ensuring the normal driving of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a muffler and a vehicle. BACKGROUND

[0002] The vehicle muffler is a part used to reduce the noise generated by the engine of a motor vehicle during operation. Due to the length difference between the intake pipe and the exhaust pipe located inside it being equal to half the wavelength of the sound waves emitted by the vehicle, the two columns of sound waves cancel each other out when superimposed, thereby weakening the sound intensity and reducing the sound, thus achieving the effect of sound reduction.

[0003] In the related art, the muffler includes a shell and an exhaust pipe. The exhaust pipe is arranged in the shell and extends out of the shell at one end. The bottom of the shell is provided with a drain hole. However, the internal space of the shell is limited, so that the length of the exhaust pipe located in the shell is short, thereby making the distance of sound wave propagation short and the sound energy attenuation less, and the sound reduction effect is poor. At the same time, since the drain hole is directly provided on the shell, the drain hole not only leaks sound, affecting the sound reduction effect, but also is prone to icing and blocking in cold weather, so that the water entering the shell cannot be drained, affecting the normal driving of the vehicle. SUMMARY

[0004] In view of this, the present application provides a muffler and a vehicle, which can not only enhance the sound reduction effect, but also effectively prevent the problem that water entering the shell cannot be drained in cold weather, ensuring the normal driving of the vehicle.

[0005] Specifically, the technical scheme includes the following:

[0006] On the one hand, the present application provides a muffler, which includes a shell, an exhaust pipe and a drain pipe.

[0007] The exhaust pipe includes a first sub-pipe, a connecting elbow and a second sub-pipe connected in sequence. The first sub-pipe is located inside the shell, the connecting elbow and the second sub-pipe are located outside the shell, and the first sub-pipe and the second sub-pipe are arranged in parallel and spaced apart.

[0008] The drain pipe is arranged outside the shell, one end of the drain pipe is in communication with the inside of the shell, and the other end is in communication with the second sub-pipe.

[0009] In some embodiments, one side of the shell is recessed inward to form a recessed channel, and the second sub-pipe is located in the recessed channel.

[0010] In some embodiments, the shell includes a first sub-shell and a second sub-shell.

[0011] The first sub-housing and the second sub-housing are oppositely arranged, the first sub-housing has a first through hole, and one end of the connecting elbow pipe penetrates through the first through hole.

[0012] In some embodiments, the pipe diameter of the drain pipe ranges from 8mm to 12mm.

[0013] In some embodiments, the muffler further comprises an air inlet pipe.

[0014] One end of the air inlet pipe is arranged inside the housing, and the other end of the air inlet pipe extends out of the housing and is located outside the housing.

[0015] In some embodiments, the air inlet pipe arranged inside the housing has a plurality of second through holes.

[0016] In some embodiments, the muffler further comprises at least one support.

[0017] The at least one support is fixed inside the housing.

[0018] For each support, the support has a first fixing hole, and the first sub-pipe penetrates through the first fixing hole.

[0019] In some embodiments, for each support, the support has a plurality of third through holes, and the third through holes have a smaller hole diameter than the first fixing hole.

[0020] In some embodiments, the muffler further comprises a fixing member, one end of the fixing member is connected with the housing, and the other end of the fixing member is connected with the second sub-pipe.

[0021] In another aspect, the application also provides a vehicle comprising the muffler of the above-mentioned aspect.

[0022] The technical scheme provided by the embodiments of the application has at least the following beneficial effects:

[0023] The muffler provided by the embodiments of the application has the following advantages: the air outlet pipe is composed of the first sub-pipe, the connecting elbow pipe and the second sub-pipe which are connected in sequence, and the connecting elbow pipe and the second sub-pipe are arranged outside the housing, so that the total length of the air outlet pipe is greatly increased, the sound wave propagation distance is prolonged, the sound energy attenuation is prolonged, and the muffling effect is enhanced; at the same time, the drain pipe is arranged outside the housing, and the water entering the housing is discharged from the second sub-pipe through the drain pipe, which avoids the problem of ice blocking caused by the drain hole arranged on the housing, effectively prevents the problem that the water entering the housing cannot be discharged in cold weather, and ensures the normal driving of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on these drawings.

[0025] Figure 1 is a structural schematic diagram of a muffler provided by an embodiment of the present application;

[0026] Figure 2 is a partial structural schematic diagram of a muffler provided by an embodiment of the present application;

[0027] Figure 3 is a sectional view of a muffler provided by an embodiment of the present application;

[0028] Figure 4 is a sectional view of a muffler provided by an embodiment of the present application;

[0029] Figure 5 is a structural schematic diagram of a muffler provided by an embodiment of the present application.

[0030] The reference signs in the drawings represent the following respectively:

[0031] 1 - shell; 11 - first sub-shell; 12 - second sub-shell; 13 - first through hole; 14 - concave through slot; 15 - chamfer;

[0032] 2 - air outlet pipe; 21 - first sub-pipe; 22 - connecting elbow; 23 - second sub-pipe;

[0033] 3 - drain pipe;

[0034] 4 - air inlet pipe; 41 - air inlet end; 42 - air outlet end; 43 - second through hole; 44 - plug cover;

[0035] 5 - support; 51 - support plate body; 52 - first fixing hole; 53 - second fixing hole; 54 - third through hole; 55 - third fixing hole;

[0036] 6 - muffling pipe; 61 - muffling hole;

[0037] 7 - fixing member; 71 - fixing plate; 72 - rectangular slot.

[0038] The above drawings have shown the specific embodiments of the present application, and more detailed description will be given hereinafter. These drawings and textual description are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] 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. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0040] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0041] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by a person of ordinary skill in the art.

[0042] In order to make the technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0043] The embodiments of the present application provide a muffler and a vehicle. The muffler is a part for reducing noise generated when an engine of a motor vehicle is working. Due to the length difference between the intake pipe and the exhaust pipe located therein being equal to half of the wavelength of the sound waves emitted by the vehicle, the two columns of sound waves are weakened by mutual cancellation when superimposed, so that the sound is reduced, thereby achieving the effect of sound reduction.

[0044] Generally, the muffler is mainly applied in the exhaust system of a vehicle. The exhaust system refers to a system for collecting and discharging exhaust gas, including a muffler, an exhaust manifold, an exhaust pipe, a sound-eliminating pipe, a tail pipe and a resonator, etc. With the popularity of vehicles, passengers have higher and higher requirements for driving comfort, which mainly reflects in seat comfort, space size, suspension comfort of the chassis, quietness, etc. Among them, the muffler is an important part affecting the quietness of the vehicle. When driving a car, by setting the muffler, low-frequency noise is reduced, sound is eliminated, and the comfort when driving is better.

[0045] The air outlet pipe in the muffler is a very important and effective component for reducing low-frequency noise. When the air outlet pipe is longer, the muffler has better noise reduction effect on low-frequency noise, and is more beneficial to idling and creeping conditions. However, due to the arrangement reasons, some vehicles need to use a clamshell muffler. The clamshell muffler includes a shell, an air inlet pipe and an air outlet pipe, and the air inlet pipe and the air outlet pipe are arranged at the front and rear ends of the muffler, respectively. Generally, the air outlet pipe and the air inlet pipe are in a straight line structure, resulting in that the total length of the air outlet pipe in the muffler is very short. Even if the air outlet pipe is made into a U-shaped structure in the muffler, due to the limitation of the internal space of the muffler, the length of the air outlet pipe is still very short, and the noise reduction effect on low-frequency noise is poor.

[0046] Moreover, after the automobile engine is started, water vapor and carbon dioxide are generated in the gasoline combustion process, and the water vapor is discharged into the muffler together with the exhaust gas. After the engine is turned off, the muffler starts to cool down, and the water vapor in the pipe condenses into water droplets when it is cooled, and the water droplets drop downward to the shell of the muffler under the action of gravity. Therefore, the existing muffler usually has a drainage hole of 3 mm at the bottom of the muffler shell to directly drain water. However, the drainage hole not only leaks sound, but also the water in the drainage hole may freeze and block in extremely cold weather. In severe cases, the condensed water may accumulate in the shell, and after the muffler cools down, the water condenses into ice, blocking the inside of the shell, and further causing the vehicle to be unable to start normally.

[0047] In order to solve the above problems in the related art, the embodiment of the present application provides a muffler which can not only enhance the sound reduction effect, but also effectively prevent the problem that water entering the shell cannot be drained in cold weather, and ensure the normal driving of the vehicle.

[0048] Figure 1 is a structural schematic diagram of a muffler provided by the embodiment of the present application. As shown in Figure 1 , the muffler includes a shell 1, an air outlet pipe 2 and a drainage pipe 3.

[0049] Among them, the air outlet pipe 2 includes a first sub-pipe 21, a connecting elbow 22 and a second sub-pipe 23 connected in sequence. The first sub-pipe 21 is located inside the shell 1, the connecting elbow 22 and the second sub-pipe 23 are located outside the shell 1, the first sub-pipe 21 and the second sub-pipe 23 are parallel and spaced apart; the drainage pipe 3 is arranged outside the shell 1, one end of the drainage pipe 3 is in communication with the inside of the shell 1, and the other end is in communication with the second sub-pipe 23.

[0050] Since the air outlet pipe 2 is composed of the first sub-pipe 21, the connecting elbow pipe 22 and the second sub-pipe 23 connected in sequence, and the connecting elbow pipe 22 and the second sub-pipe 23 are arranged outside the shell 1, the total length of the air outlet pipe 2 is greatly increased, the sound wave propagation distance is prolonged, the sound energy attenuation is prolonged, and the sound elimination effect is enhanced. At the same time, by arranging the drain pipe 3 outside the shell 1, the water entering the shell 1 is drained from the second sub-pipe 23 by the drain pipe 3, avoiding the problem of ice blocking that may occur when the drain hole is arranged on the shell 1, effectively preventing the problem that the water entering the shell cannot be drained in cold weather, and ensuring the normal driving of the vehicle.

[0051] The structure of the sound eliminator provided in the embodiments of the present application will be further described and explained as follows:

[0052] In the embodiments of the present application, the shell 1 is hollow inside, which plays a role of protecting the components arranged inside.

[0053] In some embodiments, referring to Figure 1 , one side of the shell 1 is inwardly recessed to form a recessed through slot 14, and the second sub-pipe 23 is located in the recessed through slot 14.

[0054] By arranging the recessed through slot 14, the second sub-pipe 23 passes through one side of the shell 1, so as to facilitate the arrangement of the second sub-pipe 23.

[0055] In some embodiments, referring to Figure 1 , the corners of the shell 1 are all arranged as chamfers 15, so that the outer surface of the shell 1 is smoother.

[0056] It can be understood that the shell 1 will vibrate when the vehicle is running. After arranging the chamfers 15, the stress area of the shell 1 at the corners is increased, avoiding the problem of damage that may be caused by the collision with the vehicle body when the shell 1 is vibrated.

[0057] In some embodiments, referring to Figure 1 , the shell 1 comprises a first sub-shell 11 and a second sub-shell 12, and the first sub-shell 11 and the second sub-shell 12 are oppositely arranged and can be fixedly connected.

[0058] Alternatively, the first sub-shell 11 and the second sub-shell 12 can be fixedly connected by welding, riveting or the like, which is not specifically limited in the embodiments of the present application.

[0059] Alternatively, referring to Figure 1 , one side of the second sub-shell 12 away from the first sub-shell 11 is inwardly recessed to form a recessed through slot 14, and the second sub-pipe 23 is located in the recessed through slot 14.

[0060] In some embodiments, referring to Figure 1The first sub-housing 11 has a first through hole 13, and the connecting elbow 22 penetrates the first through hole 13 at one end close to the first sub-pipe 21.

[0061] By arranging the first through hole 13 on the first sub-housing 11, the connecting elbow 22 is facilitated to be installed and fixed.

[0062] In the embodiment of the present application, the air outlet pipe 2 is used for exhausting and silencing.

[0063] The noise generated by the vehicle during operation enters the first sub-pipe 21 after entering the housing 1, then enters the connecting elbow 22 along the first sub-pipe 21, then enters the second sub-pipe 23 through the connecting elbow 22, and finally enters the atmosphere through the second sub-pipe 23. Since the air outlet pipe 2 is relatively long, the sound energy is effectively attenuated, and the silencing effect of the silencer is enhanced.

[0064] In some embodiments, referring to Figure 1 The connecting elbow 22 is in the shape of "U".

[0065] In some embodiments, the structure of the air outlet pipe 2 composed of the first sub-pipe 21, the connecting elbow 22 and the second sub-pipe 22 is in the shape of "U".

[0066] In some embodiments, the first sub-pipe 21, the connecting elbow 22 and the second sub-pipe 23 are all circular pipes, and the diameters of the first sub-pipe 21, the connecting elbow 22 and the second sub-pipe 23 are the same, which facilitates material selection and preparation.

[0067] In some embodiments, the first sub-pipe 21, the connecting elbow 22 and the second sub-pipe 22 are integrally prepared, or the first sub-pipe 21, the connecting elbow 22 and the second sub-pipe 22 are connected to form an integral structure.

[0068] Alternatively, the first sub-pipe 21, the connecting elbow 22 and the second sub-pipe 22 can be fixedly connected by welding, threaded connection or other connection methods, which are not specifically limited in the embodiment of the present application.

[0069] In the embodiment of the present application, the drain pipe 3 is used for draining water in the housing.

[0070] Since one end of the drain pipe 3 is in communication with the inside of the housing 1 and the other end is in communication with the second sub-pipe 23, water in the housing 1 can flow out through the drain pipe 3 under the action of gravity and then enter the second sub-pipe 23, and then be discharged to the outside environment from the second sub-pipe 23. By arranging the drain pipe 3 instead of the drain hole in the related art, the problem of ice blocking caused by opening the drain hole on the housing 1 can be avoided, the problem that water entering the housing 1 cannot be drained in cold weather can be effectively prevented, and the normal driving of the vehicle can be ensured.

[0071] In addition, when the air outlet pipe 2 of the muffler is long, pipeline acoustic cavity resonance occurs, and high-frequency "mooing" sound is generated. Since the drain pipe 3 is in communication with the second sub-pipe 23 of the air outlet pipe 2, the high-frequency abnormal sound can be reduced.

[0072] In some embodiments, the drain pipe 3 has a diameter in the range of 8mm to 12mm.

[0073] Exemplarily, the drain pipe 3 has a diameter of 10mm.

[0074] By setting the diameter of the drain pipe 3 to 10mm, which is 3 times the diameter of the drain hole provided in the related art, the drain pipe 3 will not be frozen even in extremely cold weather conditions, and water in the muffler can be quickly drained to avoid water accumulation and ice blocking in the muffler.

[0075] In some embodiments, the end of the drain pipe 3 connected to the shell 1 is higher than the end of the drain pipe 3 connected to the second sub-pipe 23, which helps water flow from the shell 1 into the second sub-pipe 23 under the action of gravity, avoids water accumulation and ice blocking in the shell 1, and makes the drainage effect better.

[0076] In some embodiments, referring to Figure 1 , the muffler provided in the embodiments of the present application further comprises an air inlet pipe 4.

[0077] The air inlet pipe 4 has one end fixedly arranged in the interior of the shell 1 and the other end extending out of the shell 1 and located outside the shell 1.

[0078] By providing the air inlet pipe 4, it is helpful to reduce the noise generated by the vehicle running and achieve the muffling of the vehicle exhaust system.

[0079] In the embodiments of the present application, the end of the air inlet pipe 4 extending out of the shell 1 is an air inlet end 41, the end of the air inlet pipe 4 extending into the shell 1 is an air outlet end 42, and the air inlet pipe 4 is in communication with the interior of the shell 1 through the air outlet end 42.

[0080] When the vehicle is running, exhaust gas is generated when the engine is started and combusted, and noise is generated when the engine is exhausted. The exhaust gas and noise enter the air inlet end 41 of the air inlet pipe 4, are discharged to the interior of the shell 1 from the air outlet end 42, flow in the interior of the shell 1, and then enter the first sub-pipe 21, and are sequentially discharged to the outside atmosphere through the connecting elbow pipe 22 and the second sub-pipe 23.

[0081] In some embodiments, as shown in Figure 2 , the air inlet pipe 4 located in the interior of the shell 1 has a plurality of second through holes 43.

[0082] By providing a plurality of second through holes 43, the communication area between the air inlet pipe 4 and the interior of the shell 1 can be increased, which is helpful to the flow of exhaust gas.

[0083] In some embodiments, the second through hole 43 is provided with multiple rows and multiple holes in each row along the axial direction of the air inlet pipe 4.

[0084] It can be understood that when the noise and exhaust gas enter along the air inlet end 41 of the air inlet pipe 4, they can flow into the shell 1 along the second through hole 43.

[0085] In some embodiments, as shown in Figure 2 , the air outlet end 42 of the air inlet pipe 4 is provided with a plug cover 44.

[0086] It can be understood that when the vehicle is running, the exhaust gas generated by the engine running can only flow into the shell 1 along the second through hole 43 after entering the air inlet pipe 4, which helps to disperse the exhaust gas and avoid the exhaust gas from directly entering the shell 1 along the air outlet end 42.

[0087] In some embodiments, as shown in Figure 2 and Figure 3 , the muffler provided by the embodiments of the application further comprises at least one support 5.

[0088] The at least one support 5 is fixed inside the shell 1 to fix the air inlet pipe 4 and the first sub-pipe 21 in the shell 1.

[0089] By providing the support 5, the air inlet pipe 4 and the first sub-pipe 21 are fixed by the support 51, which further enhances the stability of the air inlet pipe 4 and the first sub-pipe 21, reduces the impact and vibration of the airflow on the air inlet pipe 4 and the first sub-pipe 21, helps to protect the air inlet pipe 4 and the first sub-pipe 21, avoids damage of the air inlet pipe 4 and the first sub-pipe 21 after being impacted, and prolongs the service life of the air inlet pipe 4 and the first sub-pipe 21.

[0090] For example, referring to Figure 2 , the number of supports 5 is two, and the supports 5 are arranged in parallel in the width direction of the shell 1.

[0091] In some embodiments, referring to Figure 2 , each support 5 has a first fixing hole 52, and the first sub-pipe 21 penetrates the first fixing hole 52, so that the first sub-pipe 21 is fixed on the support 5 through the first fixing hole 52.

[0092] In some embodiments, the support 5 is fixedly connected with the inner wall of the second sub-shell 12 and the inner wall of the first sub-shell 11.

[0093] In some embodiments, referring to Figure 2 , the support 5 has a second fixing hole 53, and the air inlet pipe 4 penetrates the second fixing hole 53, so that the air inlet pipe 4 is fixed on the support 5.

[0094] For example, referring toFigure 2 and Figure 3 The two support members 5 are provided with first fixing holes 52, and the first sub-pipe 21 penetrates through the corresponding first fixing holes 52 of the two support members 5. The support member 5 close to the air inlet end 41 of the air inlet pipe 4 is provided with a second fixing hole 53, and the support member 5 away from the air inlet end 41 of the air inlet pipe 4 is not provided with a second fixing hole 53. Since the length of the air inlet pipe 4 is short, the air inlet pipe 4 is fixed and supported in this way. The short air inlet pipe 4 can reduce the resistance and vibration of the air flow in the shell 1, thereby reducing the noise and helping to enhance the noise reduction effect.

[0095] In some embodiments, referring to Figure 1 For each support member 5, the support member 5 is provided with a plurality of third through holes 54.

[0096] By providing a plurality of third through holes 54 on the support member 5, the flow characteristics of the air flow passing through the support plate body 51 are changed, so that the air flow is more uniform and dispersed when passing through, which helps to reduce the formation of vortex and turbulent flow, thereby reducing noise.

[0097] Exemplarily, by providing two support members 5, the interior of the shell 1 is divided into three chambers by the two support members 5, and the adjacent two chambers are communicated through the plurality of third through holes 54 on the support member 5.

[0098] In some embodiments, the plurality of third through holes 54 are uniformly and evenly distributed on the support member 5, and the diameters of the plurality of third through holes 54 are the same, which is convenient for preparation.

[0099] In some embodiments, the diameter of the third through hole 54 is smaller than the diameter of the first fixing hole 52.

[0100] In this way, the third through hole 54 with a smaller diameter helps to increase the friction of the air flow, further consume sound energy, and thus further improve the noise reduction effect.

[0101] In some embodiments, the corners of the support member 5 are chamfered 15, so that the surface of the support member 5 is smoother and better fits the inner wall of the shell 1, avoiding the generation of gaps between the support member 5 and the inner wall of the shell 1 to cause the air inlet pipe 4 and the first sub-pipe 21 to shake and generate noise, and helping to enhance the noise reduction effect.

[0102] In some embodiments, the support member 5 is a support plate body 51.

[0103] In some embodiments, referring to Figure 4 and Figure 5 The muffler provided by the embodiments of the present application further comprises a fixing member 7.

[0104] One end of the fixing member 7 is connected with the shell 1, and the other end is connected with the second sub-pipe 23, so as to support and fix the second sub-pipe 23, avoid the second sub-pipe 23 from tilting or falling off after being vibrated, help to protect the second sub-pipe 23, and maintain the sound attenuation function of the second sub-pipe 23.

[0105] In some embodiments, referring to Figure 5 , the two ends of the fixing member are lower than the middle part, and the middle part of the fixing member 7 is arched towards the second sub-shell 12.

[0106] In this way, when the second sub-pipe 23 is vibrated, the arched part of the fixing member 7 helps to buffer the impact and avoid the fixing member 7 from being bent after being vibrated.

[0107] In some embodiments, the side of the fixing member 7 away from the shell 1 has a rectangular slot 72.

[0108] By arranging the rectangular slot 72, the weight of the fixing member 7 is reduced, and thus the weight of the muffler is reduced.

[0109] In some embodiments, the fixing member 7 is a fixing plate 71.

[0110] In some embodiments, referring to Figure 1 , the muffler provided by the embodiments of the present application further comprises a sound attenuation pipe 6.

[0111] The sound attenuation pipe 6 is located inside the shell 1, so as to control the airflow direction and sound wave propagation direction inside the shell 1, perform secondary sound attenuation, and enhance the low-frequency sound attenuation effect of the muffler.

[0112] Referring to Figure 1 , both ends of the sound attenuation pipe 6 are in communication with the inside of the shell 1.

[0113] In some embodiments, referring to Figure 4 , the sound attenuation pipe 6 is a circular pipe.

[0114] In some embodiments, referring to Figure 5 , the sound attenuation pipe 6 has a plurality of sound attenuation holes 61, wherein the hole diameter of the sound attenuation holes 61 is smaller than the hole diameter of the second through hole 43.

[0115] The sound attenuation holes 61 with smaller hole diameters help to further accurately control the airflow direction and flow rate, and help to reduce the noise generated by the exhaust.

[0116] In some embodiments, the support member 5 has a third fixing hole 55, and the sound attenuation pipe 6 penetrates through the third fixing hole 55, so that the sound attenuation pipe 6 is fixed on the support plate member 5.

[0117] The embodiments of the present application also provide a vehicle, which comprises the muffler related to the embodiments of the present application.

[0118] The vehicle of the embodiment of the application adopts the muffler of the application, and has all the beneficial technical effects of the embodiment of the muffler.

[0119] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting” should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integral connection; can be mechanical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0120] In addition, the terms “first”, “second” are only used for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first”, “second” can explicitly or implicitly include one or more features. In the description of the application, the meaning of “plurality” is two or more, unless otherwise explicitly specified and limited.

[0121] In the present application, unless otherwise explicitly specified and limited, the “above” or “below” of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the “above”, “over” and “on” of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The “below”, “under” and “underneath” of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0122] In the description of the specification, the description referring to the terms “certain embodiments”, “one embodiment”, “some embodiments”, “illustrative embodiments”, “example”, “specific example”, or “some examples” means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the application.

[0123] The above is only the embodiment of the application, and does not limit the application. Any modification, equivalent replacement, improvement, etc. made within the principles of the application shall be included in the protection scope of the application.

Claims

1. A muffler characterized by comprising: The muffler comprises a shell (1), an air outlet pipe (2) and a drain pipe (3); The air outlet pipe (2) comprises a first sub-pipe (21), a connecting elbow (22) and a second sub-pipe (23) connected in sequence, the first sub-pipe (21) is located inside the shell (1), the connecting elbow (22) and the second sub-pipe (23) are located outside the shell (1), the first sub-pipe (21) and the second sub-pipe (23) are both straight pipes, and the first sub-pipe (21) and the second sub-pipe (23) are parallel and spaced apart; The drain pipe (3) is arranged outside the shell (1), one end of the drain pipe (3) is in communication with the inside of the shell (1), the other end of the drain pipe (3) is in communication with the second sub-pipe (23), the end of the drain pipe (3) connected with the shell (1) is higher than the end of the drain pipe (3) connected with the second sub-pipe (23); one side of the shell (1) is recessed inward to form a concave channel (14), and the second sub-pipe (23) is located in the concave channel (14).

2. The muffler of claim 1, wherein The shell (1) comprises a first sub-shell (11) and a second sub-shell (12); The first sub-shell (11) and the second sub-shell (12) are arranged oppositely, the first sub-shell (11) has a first through hole (13), and one end of the connecting elbow (22) penetrates through the first through hole (13).

3. The muffler of claim 1, wherein The drain pipe (3) has a pipe diameter ranging from 8mm to 12mm.

4. The muffler of claim 1, wherein The muffler further comprises an air inlet pipe (4); One end of the air inlet pipe (4) is arranged inside the shell (1), and the other end of the air inlet pipe (4) extends out of the shell (1) and is located outside the shell (1).

5. The muffler of claim 4, wherein The air inlet pipe (4) located inside the shell (1) has a plurality of second through holes (43).

6. The muffler of claim 1, wherein The muffler further comprises at least one support (5); The at least one support (5) is fixed inside the shell (1); For each support (5), the support (5) has a first fixing hole (52), and the first sub-pipe (21) penetrates through the first fixing hole (52).

7. The muffler of claim 6 wherein, For each support (5), the support (5) has a plurality of third through holes (54), and the third through holes (54) have a smaller hole diameter than the first fixing hole (52).

8. The muffler of claim 1, wherein The muffler further comprises a fixing member (7), one end of the fixing member (7) is connected with the shell (1), and the other end of the fixing member (7) is connected with the second sub-pipe (23).

9. A vehicle characterized by comprising: The vehicle comprises the muffler according to any one of claims 1-8.

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