Exhaust silencing device and vehicle

Abstract

The utility model discloses an exhaust silencing device and a vehicle, the exhaust silencing device comprises a separation structure, a silencing structure and a silencing bag body with an air inlet, an air outlet and a water outlet, the separation structure and the silencing structure are installed in the silencing bag body, the separation structure is located between the air inlet and the silencing structure, and the silencing structure is located between the air outlet and the water outlet. The silencing structure is located between the separation structure and the air outlet, the separation structure has hydrophobicity, and a plurality of first vent holes are formed in the separation structure to form a net structure. According to the utility model, most of liquid water is blocked by the separation structure and falls down, gas can enter the subsequent silencing structure through the first vent hole, is subjected to silencing treatment and is discharged through the gas outlet, and the liquid water can be discharged out of a vehicle through the water outlet; and the situation that normal operation of related parts of the vehicle is affected by freezing of liquid water in the cold environment is avoided, the device is particularly suitable for fuel cell vehicle types, and it is guaranteed that an exhaust silencing device of the vehicle can also normally operate in the cold environment.

Description

Technical Field

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

[0002] In order to reduce automobile emission pollutants, nearly zero-emission fuel cell models have gradually become the development focus of various automakers. However, the exhaust product temperature of fuel cell models is relatively low (less than 100 degrees Celsius), resulting in a certain amount of liquid water mixed in the exhaust gas. In a cold environment, if this liquid water cannot be discharged in time, it may cause problems such as pipe icing and blockage, affecting the normal operation of the vehicle. Utility Model Content

[0003] In view of this, the utility model aims to provide an exhaust silencer and a vehicle to solve the technical problem in the prior art that liquid water in the exhaust gas is easily frozen and affects the normal operation of the vehicle.

[0004] The utility model provides an exhaust silencer, comprising a separation structure, a silencer structure and a silencer package with an air inlet, an air outlet and a drain port, wherein the separation structure and the silencer structure are installed in the silencer package, the separation structure is located between the air inlet and the silencer structure, the silencer structure is located between the separation structure and the air outlet, the separation structure is hydrophobic, and a plurality of first vents are provided on the separation structure to form a mesh structure.

[0005] Furthermore, a water storage partition is provided in the sound-absorbing bag, and the water storage partition divides the inner cavity of the sound-absorbing bag into an exhaust cavity and a water storage cavity. The water storage cavity is located at the bottom of the exhaust cavity and is connected with the drain port. A first through hole is provided on the water storage partition to connect the exhaust cavity and the water storage cavity.

[0006] Furthermore, a support frame is provided along the outer periphery of the separation structure, at least one side of the support frame is mounted on the inner wall of the sound-absorbing package, and the bottom end of the support frame extends into the water storage cavity through the first through hole.

[0007] Furthermore, a first water guide groove is provided on the inner wall of the bottom end of the support frame, one end of the first water guide groove is arranged at the bottom end of the separation structure, and the other end is communicated with the water storage cavity.

[0008] Furthermore, the silencer structure includes a core tube and a silencer baffle, the silencer baffle is arranged in the exhaust chamber to separate the separation chamber and the silencer chamber, the separation structure is installed in the separation chamber, and the core tube passes through the silencer baffle to connect the separation chamber and the air outlet.

[0009] Furthermore, a plurality of the silencer baffles are arranged in the exhaust chamber, wherein one of the silencer baffles divides the exhaust chamber into a separation chamber and a silencer chamber, and the remaining silencer baffles divide the silencer chamber into at least a first silencer chamber, a second silencer chamber and a third silencer chamber, a first silencer hole is provided on the core tube in the first silencer chamber, a second silencer hole is provided on the core tube in the second silencer chamber, and a third silencer hole is provided on the core tube in the third silencer chamber.

[0010] Furthermore, the second silencer chamber is located between the first silencer chamber and the third silencer chamber, the first silencer chamber is arranged close to the air inlet, the third silencer chamber is arranged close to the air outlet, the first silencer hole is a square through hole structure, the second silencer hole and the third silencer hole are circular through hole structures, and the number of the second silencer holes is less than the number of the third silencer holes.

[0011] Furthermore, the water storage partition is provided with a second through hole, a third through hole and a fourth through hole to connect the first muffler chamber, the second muffler chamber and the third muffler chamber to the water storage chamber respectively.

[0012] Furthermore, a fifth through hole is provided on the sound-absorbing baffle to interconnect the separation chamber, the first sound-absorbing chamber, the second sound-absorbing chamber and the third sound-absorbing chamber.

[0013] The utility model also provides a vehicle, comprising the exhaust silencer.

[0014] In the exhaust silencer of the utility model, a mixed gas containing liquid water and gas enters the silencer bag through the air inlet and first passes through the separation structure. Since the separation structure is a mesh structure with a first air vent and is hydrophobic, most of the liquid water is blocked by the separation structure and falls down, while the gas can enter the subsequent silencer structure through the first air vent. After the silencer treatment, the exhaust noise is reduced and the gas is finally discharged through the air outlet. The liquid water can be discharged out of the vehicle through the drain port to avoid the freezing of liquid water in a cold environment and affect the normal operation of related components of the vehicle. The utility model is particularly suitable for fuel cell vehicles to ensure that the exhaust silencer of the vehicle can operate normally in a cold environment.

[0015] The vehicle of the utility model has all the beneficial effects of the above-mentioned exhaust silencer, which will not be described in detail here.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method. The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is one of the schematic diagrams of the exhaust silencer provided by the utility model;

[0019] Figure 2 This is one of the schematic diagrams of the separation structure and the support frame provided by the utility model;

[0020] Figure 3 This is the second schematic diagram of the separation structure and the support frame provided by the utility model;

[0021] Figure 4 It is a cross-sectional schematic diagram of the support frame provided by the utility model (the separation structure is not shown);

[0022] Figure 5 This is the second schematic diagram of the exhaust silencer provided by the utility model (the silencer package is not shown).

[0023] The above drawings include the following reference numerals:

[0024] 1. Separation structure; 11. Support frame; 111. First water channel; 1111. First end; 1112. Second end; 112. Second water channel; 1121. Third end; 1122. Fourth end; 2. Silencing structure; 21. Core tube; 211. First silencing hole; 212. Second silencing hole; 213. Third silencing hole; 22. Silencing baffle; 221. Fifth through hole; 23. Silencing cotton ; 3. Silencing package; 310. Exhaust chamber; 311. Separation chamber; 312. Silencing chamber; 3121. First silencing chamber; 3122. Second silencing chamber; 3123. Third silencing chamber; 320. Water storage chamber; 31. Air inlet; 32. Air outlet; 33. Drain outlet; 34. Water storage baffle; 341. First through hole; 342. Second through hole; 343. Third through hole; 344. Fourth through hole. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but are not intended to limit the present invention.

[0026] It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the utility model will occur to those skilled in the art.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] This specification may use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment" or "in other embodiments", all of which may refer to one or more of the same or different embodiments according to the present invention.

[0029] Combination Figures 1 to 4 As shown, the positive direction of the Z axis in the figure represents the upward direction, the negative direction of the Z axis represents the downward direction, the positive direction of the X axis represents the front direction, the negative direction of the X axis represents the rear direction, the positive direction of the Y axis represents the left direction, and the negative direction of the Y axis represents the right direction.

[0030] The utility model provides an exhaust silencer, comprising a separation structure 1, a silencer structure 2 and a silencer package 3 with an air inlet 31, an air outlet 32 ​​and a water outlet 33, wherein the separation structure 1 and the silencer structure 2 are installed in the silencer package 3, the separation structure 1 is located between the air inlet 31 and the silencer structure 2, the silencer structure 2 is located between the separation structure 1 and the air outlet 32, the separation structure 1 is hydrophobic, and a plurality of first vents are provided on the separation structure 1 to form a mesh structure.

[0031] Combination Figures 1 to 3As shown, the silencer package 3 is similar to a shell structure, and an entire inner cavity is formed therein, and the silencer package 3 has an air inlet 31, an air outlet 32 ​​and a drain port 33. The separation structure 1 can be made of materials such as polypropylene, so that the separation structure 1 as a whole has a certain hydrophobicity. A plurality of first air holes are provided on the separation structure 1 to form a mesh distribution of holes. In this way, the mesh structure of the separation structure 1 can allow gas to pass through the first air holes, and when liquid water encounters the separation structure 1, water droplets are formed on the surface of the separation structure 1 due to the hydrophobicity of the separation structure 1, thereby achieving the effect of water-gas separation.

[0032] Combination Figure 1 As shown, the separation structure 1 is located between the air inlet 31 and the silencer structure 2, and the silencer structure 2 is located between the separation structure 1 and the air outlet 32. In this way, the mixed gas enters the silencer package 3 through the air inlet 31, and first passes through the first vent hole of the separation structure 1. Due to the hydrophobicity of the separation structure 1, most of the liquid water is blocked by the separation structure 1, and the remaining gas is silenced by the silencer structure 2 and finally discharged through the air outlet 32. After the blocked liquid water flows down from the surface of the separation structure 1, it can be discharged through the drain port 33, thereby avoiding the freezing of liquid water in related components and ensuring the normal operation of the vehicle.

[0033] Preferably, a water storage partition 34 is provided in the sound-absorbing bag 3, and the water storage partition 34 divides the inner cavity of the sound-absorbing bag 3 into an exhaust cavity 310 and a water storage cavity 320. The water storage cavity 320 is located at the bottom of the exhaust cavity 310 and is connected to the drain port 33. A first through hole 341 is provided on the water storage partition 34 to connect the exhaust cavity 310 and the water storage cavity 320.

[0034] Combination Figure 1 As shown, the water storage partition 34 divides the inner cavity of the silencer package 3 into two parts, namely the exhaust cavity 310 and the water storage cavity 320. The water storage cavity 320 is located at the bottom of the exhaust cavity 310 (that is, the water storage cavity 320 is located on the opposite side of the exhaust cavity 310 along the Z-axis in the figure), and the water storage cavity 320 is connected with the drain port 33. A first through hole 341 is provided on the water storage partition 34, so that the exhaust cavity 310 and the water storage cavity 320 are connected with each other. In this way, liquid water blocked by the separation structure 1 can enter the water storage cavity 320 through the first through hole 341 and can be discharged through the drain port 33.

[0035] In this way, the liquid water can be separated from other pipelines of the exhaust muffler device as quickly as possible through the water storage baffle 34, so as to prevent the liquid water from freezing and affecting the normal operation of related components.

[0036] Furthermore, a support frame 11 is provided along the outer periphery of the separation structure 1 , at least one side of the support frame 11 is installed on the inner wall of the exhaust cavity 310 , and the bottom end of the support frame 11 extends into the water storage cavity 320 through the first through hole 341 .

[0037] Combination Figures 1 to 3 As shown, a support frame 11 is provided on the periphery of the separation structure 1. The support frame 11 is similar to the outer contour shape of the separation structure 1 and is in the shape of a square frame. The support frame 11 is provided with connecting columns on both sides along the positive and negative directions of the Y-axis in the figure to be fixedly connected to the inner wall of the exhaust chamber 310, and the bottom end of the support frame 11 (i.e., the opposite end along the Z-axis in the figure) passes through the first through hole 341 and extends into the water storage chamber 320. In this way, the liquid water blocked by the separation structure 1 can fall into the water storage chamber 320 at a lower height, thereby avoiding splashing of water in the water storage chamber 320 and preventing water droplets from falling into the water storage chamber 320 to generate certain noise.

[0038] Furthermore, a first water guide groove 111 is provided on the inner wall of the bottom end of the support frame 11 , one end of the first water guide groove 111 is arranged at the bottom end of the separation structure 1 , and the other end is communicated with the water storage chamber 320 .

[0039] Combination Figure 1 and Figure 2 As shown, a first water guide groove 111 is provided on the inner wall of the bottom end of the support frame 11 (i.e., the inner wall at the end opposite to the Z axis in the figure). The specific shape of the first water guide groove 111 can be designed as needed and is not limited here. One end of the first water guide groove 111 should be set at the bottom end of the separation structure 1 (i.e., the end opposite to the Z axis in the figure), and the other end can be set in the direction of the air inlet 31, so that the liquid water in the first water guide groove 111 can be drained into the water storage chamber 320.

[0040] In this way, the liquid water can be prevented from staying on the support frame 11 , so that the liquid water can fall into the water storage chamber 320 as quickly as possible after being blocked by the separation structure 1 .

[0041] Preferably, a second water guide groove 112 is also provided on the inner wall of the bottom end of the support frame 11, the first water guide groove 111 is arranged on the side of the separation structure 1 close to the air inlet 31, and the second water guide groove 112 is arranged on the side of the separation structure 1 away from the air inlet 31, one end of the second water guide groove 112 is arranged at the bottom end of the separation structure 1, and the other end is connected to the water storage chamber 320.

[0042] Combination Figures 2 to 4As shown, a first water guide groove 111 and a second water guide groove 112 are provided on the inner wall of the bottom end of the support frame 11. Similar to the first water guide groove 111, the second water guide groove 112 extends from the bottom end of the separation structure 1 (i.e., the end of the separation structure 1 in the opposite direction of the Z axis in the figure), and extends toward the direction of the air outlet 32 ​​(in the present embodiment, in the opposite direction of the X axis in the figure) to communicate with the water storage chamber 320. In this way, a portion of the liquid water passes through the first air vent and finally falls into the second water guide groove 112, and is guided by the second water guide groove 112 and finally falls into the water storage chamber 320.

[0043] In this way, the liquid water on the two side surfaces of the separation structure 1 can fall into the water storage chamber 320 as quickly as possible through the first water guide groove 111 and the second water guide groove 112 .

[0044] It can be understood that the first water guide groove 111 and the second water guide groove 112 can directly extend into the water storage chamber 320, or one end of the water outlet can be set above the first through hole 341 so that liquid water can fall into the water storage chamber 320, wherein the solution of directly extending into the water storage chamber 320 can better ensure that liquid water enters the water storage chamber 320.

[0045] Preferably, the first water guide groove 111 has a first end 1111 and a second end 1112, the second water guide groove 112 has a third end 1121 and a fourth end 1122, the first end 1111 and the third end 1121 are interconnected at the bottom end of the separation structure 1, the groove width of the second end 1112 is greater than the groove width of the first end 1111, and the groove width of the fourth end 1122 is greater than the groove width of the third end 1121.

[0046] Combination Figures 2 to 4 As shown, the first water guide groove 111 and the second water guide groove 112 are exemplarily designed to be an isosceles trapezoidal shape, the first water guide groove 111 has a first end 1111 and a second end 1112, wherein the first end 1111 corresponds to the short side of the isosceles trapezoid, and the second end 1112 corresponds to the long side of the isosceles trapezoid, and the second water guide groove 112 has a third end 1121 and a fourth end 1122, wherein the third end 1121 corresponds to the short side of the isosceles trapezoid, and the fourth end 1122 corresponds to the long side of the isosceles trapezoid, that is, the groove width of the second end 1112 is greater than the groove width of the first end 1111, and the groove width of the fourth end 1122 is greater than the groove width of the third end 1121.

[0047] In this way, after the liquid water falls into the first water groove 111 and the second water groove 112, it will gradually diffuse, so that the liquid water is dispersed and falls into the water storage chamber 320, avoiding the liquid water from impacting the inner wall of the water storage chamber 320 and generating noise; in addition, the first end 1111 and the third end 1121 are interconnected, so that during the acceleration and deceleration of the vehicle, the liquid water can flow out from any one of the first water groove 111 and the second water groove 112 to the water storage chamber 320, ensuring that the liquid water will not stagnate on the separation structure 1.

[0048] Furthermore, the silencer structure 2 includes a core tube 21 and a silencer baffle 22, the silencer baffle 22 is arranged in the exhaust chamber 310 to separate the separation chamber 311 and the silencer chamber 312, the separation structure 1 is installed in the separation chamber 311, and the core tube 21 passes through the silencer baffle 22 to connect the separation chamber 311 and the air outlet 32.

[0049] Combination Figure 1 and Figure 5 As shown, some through-hole structures can be provided on the core tube 21 to achieve a sound-absorbing effect, and preferably, the outer periphery of the core tube 21 can also be covered with sound-absorbing cotton 23 to further enhance the sound-absorbing effect. A sound-absorbing baffle 22 is provided in the exhaust chamber 310, and the exhaust chamber 310 is divided into a separation chamber 311 and a sound-absorbing chamber 312. The separation structure 1 is installed in the separation chamber 311. The core tube 21 passes through the sound-absorbing baffle 22, one end of which is located in the separation chamber 311, and the other end is located in the sound-absorbing chamber 312, and is arranged close to the air outlet 32, so that the separation chamber 311 is connected with the air outlet 32.

[0050] In this way, the mixed gas after passing through the separation structure 1 enters the core tube 21 and is subjected to the muffler effect, thereby reducing the exhaust noise.

[0051] Preferably, a plurality of the silencer baffles 22 are arranged in the exhaust chamber 310, wherein one of the silencer baffles 22 divides the exhaust chamber 310 into a separation chamber 311 and a silencer chamber 312, and the remaining silencer baffles 22 divide the silencer chamber 312 into at least a first silencer chamber 3121, a second silencer chamber 3122 and a third silencer chamber 3123. The core tube 21 located in the first silencer chamber 3121 is provided with a first silencer hole 211, the core tube 21 located in the second silencer chamber 3122 is provided with a second silencer hole 212, and the core tube 21 located in the third silencer chamber 3123 is provided with a third silencer hole 213.

[0052] Combination Figure 1As shown, there are three silencer baffles 22, one of which divides the exhaust chamber 310 into a separation chamber 311 and a silencer chamber 312, and the other two silencer baffles 22 divide the silencer chamber 312 into a first silencer chamber 3121, a second silencer chamber 3122 and a third silencer chamber 3123. The core tube 21 runs through the silencer baffles 22, so that the three parts of the core tube 21 are correspondingly located in the first silencer chamber 3121, the second silencer chamber 3122 and the third silencer chamber 3123, and the first silencer hole 211, the second silencer hole 212 and the third silencer hole 213 are respectively provided on the corresponding parts of the core tube 21, so that the mixed gas is affected by the first silencer hole 211, the second silencer hole 212 and the third silencer hole 213 when passing through the core tube 21, thereby reducing the exhaust noise.

[0053] In addition, the silencer baffle 22 can be hydrophobic and form a mesh structure by designing a second vent hole, so that when the mixed gas passes through the silencer chamber 312, a portion of the liquid water is blocked again by the silencer baffle 22, further removing the liquid water in the mixed gas to prevent the liquid water from freezing and affecting the normal operation of the vehicle.

[0054] Furthermore, the second silencer chamber 3122 is located between the first silencer chamber 3121 and the third silencer chamber 3123, the first silencer chamber 3121 is arranged close to the air inlet 31, and the third silencer chamber 3123 is arranged close to the air outlet 32, the first silencer hole 211 is a square through hole structure, the second silencer hole 212 and the third silencer hole 213 are circular through hole structures, and the number of the second silencer holes 212 is less than the number of the third silencer holes 213.

[0055] Combination Figure 1 and Figure 5 As shown, in the order from the air inlet 31 to the air outlet 32, the first muffler chamber 3121, the second muffler chamber 3122 and the third muffler chamber 3123 are arranged in sequence, separated by the muffler baffle 22, and the core tube 21 is provided with a first muffler hole 211 located in the first muffler chamber 3121, a second muffler hole 212 located in the second muffler chamber 3122 and a third muffler hole 213 located in the third muffler chamber 3123, wherein the first muffler hole 211 is a square through hole structure (can be a square shape such as a square or a rectangle), the second muffler hole 212 and the third muffler hole 213 are circular through hole structures (can be circular shapes such as a perfect circle or an ellipse), and from Figure 5 It can be seen that the number of the third silencer holes 213 is greater than the number of the second silencer holes 212, so as to adjust the noise elimination effect of the first silencer chamber 3121, the second silencer chamber 3122 and the third silencer chamber 3123 for different frequency bands, thereby ensuring the vehicle exhaust noise reduction effect.

[0056] Furthermore, the water storage partition 34 is provided with a second through hole 342 , a third through hole 343 and a fourth through hole 344 to connect the first muffler chamber 3121 , the second muffler chamber 3122 and the third muffler chamber 3123 to the water storage chamber 320 , respectively.

[0057] Combination Figure 1 As shown, a second through hole 342, a third through hole 343 and a fourth through hole 344 are provided on the water storage partition 34 corresponding to the first muffler chamber 3121, the second muffler chamber 3122 and the third muffler chamber 3123, and liquid water can enter the water storage chamber 320 through the second through hole 342, the third through hole 343 and the fourth through hole 344.

[0058] In this way, after the mixed gas passes through the separation structure 1, there is still a part of liquid water, and the liquid water will also form water droplets in the core tube 21. These water droplets can enter the water storage chamber 320 through the second through hole 342, the third through hole 343 and the fourth through hole 344, and then be discharged out of the vehicle to avoid ice forming and affecting the normal operation of the vehicle.

[0059] Furthermore, a fifth through hole 221 is provided on the muffler baffle 22 to connect the separation chamber 311 , the first muffler chamber 3121 , the second muffler chamber 3122 and the third muffler chamber 3123 to each other.

[0060] Combination Figure 1 As shown, each silencer baffle 22 is provided with a fifth through hole 221, thereby connecting the separation chamber 311 and the first silencer chamber 3121 on both sides of the silencer baffle 22, connecting the first silencer chamber 3121 and the second silencer chamber 3122, and connecting the second silencer chamber 3122 and the third silencer chamber 3123. Liquid water can flow into the separation chamber 311, the first silencer chamber 3121, the second silencer chamber 3122 and the third silencer chamber 3123 through the fifth through hole 221.

[0061] In this way, when the car accelerates or decelerates or goes up or down a slope, the liquid water in the exhaust chamber 310 can flow through the fifth through hole 221 to the separation chamber 311, the first through hole 3121, the second through hole 3122 and the third through hole 3123, and then can flow into the water storage chamber 320 through the first through hole 341, the second through hole 342, the third through hole 343 and the fourth through hole 344, so that the liquid water can be discharged out of the vehicle as soon as possible to avoid ice forming and affecting the normal operation of the vehicle.

[0062] In the exhaust silencer of the utility model, a mixed gas containing liquid water and gas enters the silencer bag 3 through the air inlet 31, and first passes through the separation structure 1. Since the separation structure 1 is a mesh structure with a first air vent and is hydrophobic, most of the liquid water is blocked by the separation structure 1 and falls down, while the gas can enter the subsequent silencer structure 2 through the first air vent. After the silencer treatment, the exhaust noise is reduced, and the gas is finally discharged through the air outlet 32. The liquid water can be discharged out of the vehicle through the drain port 33, so as to avoid the freezing of liquid water in a cold environment and affect the normal operation of related components of the vehicle. It is particularly suitable for fuel cell vehicles to ensure that the exhaust silencer of the vehicle can also operate normally in a cold environment.

[0063] The utility model also provides a vehicle, comprising the exhaust silencer.

[0064] The vehicle of the present invention adopts the above-mentioned exhaust silencer, and the mixed gas containing liquid water and gas enters the silencer bag 3 through the air inlet 31, and first passes through the separation structure 1. Since the separation structure 1 is a mesh structure with a first air vent and is hydrophobic, most of the liquid water is blocked by the separation structure 1 and falls down, while the gas can enter the subsequent silencer structure 2 through the first air vent. After the silencer treatment, the exhaust noise is reduced and the gas is finally discharged through the air outlet 32. The liquid water can be discharged out of the vehicle through the drain port 33, so as to avoid the freezing of liquid water in a cold environment and affect the normal operation of related components of the vehicle. It is particularly suitable for fuel cell vehicles to ensure that the exhaust silencer of the vehicle can also operate normally in a cold environment.

[0065] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0066] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0067] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.

[0068] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0069] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An exhaust muffler device, characterized in that: The utility model comprises a separation structure, a silencer structure and a silencer body having an air inlet, an air outlet and a drain outlet, wherein the separation structure and the silencer structure are installed in the silencer body, the separation structure is located between the air inlet and the silencer structure, the silencer structure is located between the separation structure and the air outlet, the separation structure is hydrophobic, and a plurality of first vents are provided on the separation structure to form a mesh structure.

2. The exhaust muffler device according to claim 1, characterized in that: A water storage partition is provided in the silencer bag, and the water storage partition divides the inner cavity of the silencer bag into an exhaust cavity and a water storage cavity. The water storage cavity is located at the bottom of the exhaust cavity and is connected with the drain port. A first through hole is provided on the water storage partition to connect the exhaust cavity and the water storage cavity.

3. The exhaust muffler device according to claim 2, characterized in that: A support frame is provided along the outer periphery of the separation structure, at least one side of the support frame is mounted on the inner wall of the sound-absorbing package, and the bottom end of the support frame extends into the water storage cavity through the first through hole.

4. The exhaust muffler device according to claim 3, characterized in that: A first water guide groove is provided on the inner wall of the bottom end of the support frame, one end of the first water guide groove is arranged at the bottom end of the separation structure, and the other end is communicated with the water storage cavity.

5. The exhaust muffler device according to claim 2, characterized in that: The muffler structure includes a core tube and a muffler baffle, the muffler baffle is arranged in the exhaust chamber to separate a separation chamber and a muffler chamber, the separation structure is installed in the separation chamber, and the core tube passes through the muffler baffle to connect the separation chamber and the air outlet.

6. The exhaust muffler device according to claim 5, characterized in that: A plurality of the silencer baffles are arranged in the exhaust chamber, wherein one of the silencer baffles divides the exhaust chamber into a separation chamber and a silencer chamber, and the remaining silencer baffles divide the silencer chamber into at least a first silencer chamber, a second silencer chamber and a third silencer chamber. The core tube in the first silencer chamber is provided with a first silencer hole, the core tube in the second silencer chamber is provided with a second silencer hole, and the core tube in the third silencer chamber is provided with a third silencer hole.

7. The exhaust muffler device according to claim 6, characterized in that: The second sound-absorbing chamber is located between the first sound-absorbing chamber and the third sound-absorbing chamber, the first sound-absorbing chamber is arranged close to the air inlet, and the third sound-absorbing chamber is arranged close to the air outlet, the first sound-absorbing hole is a square through-hole structure, the second sound-absorbing hole and the third sound-absorbing hole are circular through-hole structures, and the number of the second sound-absorbing holes is less than the number of the third sound-absorbing holes.

8. The exhaust muffler device according to claim 6, characterized in that: The water storage partition is provided with a second through hole, a third through hole and a fourth through hole to connect the first muffler chamber, the second muffler chamber and the third muffler chamber to the water storage chamber respectively.

9. The exhaust muffler device according to claim 8, characterized in that: The muffler baffle is provided with a fifth through hole to connect the separation chamber, the first muffler chamber, the second muffler chamber and the third muffler chamber to each other.

10. A vehicle, characterized in that: An exhaust silencer comprising the exhaust silencer according to any one of claims 1 to 9.

Images