Tail gas device, tail gas assembly, power system and vehicle

Abstract

The utility model relates to a tail gas device, a tail gas assembly, a power system and a vehicle, and the tail gas device comprises a device body which is combined to the power assembly of the vehicle through a fastener; wherein the device body is provided with a mounting hole, a connecting piece, a connecting piece and a connecting piece; wherein the mounting hole is located in the device body. The tail gas device, the tail gas assembly, the power system and the vehicle have the beneficial effects that the tail gas device and the power assembly are reasonably assembled by forming the mounting holes allowing the fasteners to penetrate through in the device body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a tail gas device, a tail gas assembly, a power system and a vehicle. BACKGROUND

[0002] In the design of some vehicles, the tail gas device (including exhaust pipe, muffler, etc.) is arranged in a through type from front to back, which has the problem of large installation space requirement.

[0003] However, the related art does not provide a reasonable tail gas device assembly scheme. UTILITY MODEL CONTENT

[0004] The embodiments of the present application provide a tail gas device to at least partially solve the above technical problems.

[0005] In order to achieve the above purpose, according to the first aspect of the present application, a tail gas device is provided, comprising:

[0006] A device body is combined to a power assembly of a vehicle by a fastener;

[0007] Wherein, the device body is provided with:

[0008] A mounting hole for the fastener to pass through;

[0009] Wherein, the mounting hole is located inside the device body.

[0010] Optionally, in some embodiments of the present application, the device body is configured to be combined to the power assembly along a first direction;

[0011] Wherein, in a projection plane perpendicular to the first direction, the projection of the hole wall of the mounting hole is inside the projection of the device body.

[0012] Optionally, in some embodiments of the present application, at least one end of the fastener is located inside the device body.

[0013] Optionally, in some embodiments of the present application, the device body is further provided with:

[0014] A channel hole for the fastener to be inserted into the inside of the device body;

[0015] Wherein, the mounting hole is located on the side of the device body close to the power assembly, and the channel hole is located on the side of the device body away from the power assembly.

[0016] Optionally, in some embodiments of the present application, the device body is configured to be combined to the power assembly along a first direction;

[0017] In a projection plane perpendicular to the first direction, a projection of a hole wall of the passage hole at least partially coincides with a projection of a hole wall of the mounting hole.

[0018] Optionally, in some embodiments of the application, the device body is further formed with:

[0019] a guide passage for guiding the fastener from the passage hole to the mounting hole;

[0020] wherein at least a portion of the guide passage is disposed between the mounting hole and the passage hole.

[0021] Optionally, in some embodiments of the application, the guide passage extends from the passage hole to the mounting hole.

[0022] Optionally, in some embodiments of the application, the device body comprises:

[0023] a connecting member formed with the guide passage;

[0024] wherein at least a portion of the connecting member is disposed between the passage hole and the mounting hole.

[0025] Optionally, in some embodiments of the application, the device body comprises a device housing;

[0026] wherein the mounting hole is formed on a side of the device housing close to the power assembly.

[0027] Optionally, in some embodiments of the application, the device body is provided with:

[0028] a passage hole for inserting a fastener into an interior of the device body;

[0029] wherein the passage hole is formed on a side of the device housing away from the power assembly.

[0030] Optionally, in some embodiments of the application, the device body comprises:

[0031] a connecting member formed with a guide passage for guiding a fastener to the mounting hole;

[0032] wherein at least a portion of the connecting member is disposed inside the device housing.

[0033] Optionally, in some embodiments of the application, the device body is configured to be coupled to the power assembly along a first direction, the device body further comprises:

[0034] at least two gussets for coupling the connecting member to the device housing;

[0035] The two adjacent lining plates are arranged at intervals in the first direction.

[0036] Optionally, in some embodiments of the present application, the lining plate comprises:

[0037] A fixing part fixedly connected to the device shell;

[0038] A supporting part provided with a matching hole through which at least part of the connecting piece passes;

[0039] In the first direction, the supporting part protrudes from the supporting part.

[0040] Optionally, in some embodiments of the present application, the device body comprises:

[0041] A plurality of connecting pieces arranged at intervals in a second direction and / or a third direction;

[0042] The second direction intersects the first direction, and the third direction intersects the first direction.

[0043] The lining plate comprises:

[0044] A plurality of supporting parts corresponding to a plurality of connecting pieces, so that the lining plate combines a plurality of connecting pieces to the device shell.

[0045] Optionally, in some embodiments of the present application, the lining plate comprises:

[0046] A first lining plate for combining one end of the connecting piece close to the power assembly to the device shell;

[0047] A second lining plate for combining one end of the connecting piece away from the power assembly to the device shell;

[0048] The first lining plate and the second lining plate are arranged at the end of the connecting piece, respectively.

[0049] Optionally, in some embodiments of the present application, the device shell comprises:

[0050] A main shell;

[0051] An assembly flange formed with a tail gas inlet to be connected to the exhaust port of the power assembly;

[0052] The assembly flange is fixedly connected to the main shell close to one side of the power assembly, and the assembly flange is formed with the mounting hole.

[0053] Optionally, in some embodiments of the present application, the device body is configured to be combined to the power assembly along the first direction,

[0054] The assembly flange is configured to have a plurality of mounting holes;

[0055] The tail gas inlet penetrates the assembly flange along the first direction, and at least part of the tail gas inlet is located in an area surrounded by the plurality of mounting holes.

[0056] Optionally, in some embodiments of the present application, the device body comprises:

[0057] A muffling assembly for attenuating noise generated by the tail gas;

[0058] The muffling assembly is arranged inside the device housing.

[0059] Optionally, in some embodiments of the present application, the device body comprises:

[0060] A connecting member formed with a guide channel for guiding a fastener to the mounting hole;

[0061] At least part of the connecting member penetrates the muffling assembly, so that the muffling assembly provides support to the connecting member.

[0062] Optionally, in some embodiments of the present application, the device body comprises:

[0063] A muffling assembly for attenuating noise generated by the tail gas;

[0064] A catalytic assembly for catalytic treatment of the tail gas;

[0065] The muffling assembly and the catalytic assembly are arranged inside the device housing, respectively.

[0066] Optionally, in some embodiments of the present application, the device body has:

[0067] A tail gas inlet for interfacing with an exhaust port of the power assembly;

[0068] The intake end of the catalytic assembly is connected in communication to the tail gas inlet, and the exhaust end of the catalytic assembly is connected in communication to the muffling assembly.

[0069] Optionally, in some embodiments of the present application, the device housing comprises:

[0070] An assembly flange formed with a tail gas inlet for interfacing with an exhaust port of the power assembly;

[0071] The intake end of the catalytic assembly is connected to the assembly flange.

[0072] Optionally, in some embodiments of the present application, the device body is configured to be coupled to the power assembly in a first direction, and the device body further comprises:

[0073] a connecting member formed with a guide channel guiding the fastener to the mounting hole;

[0074] a first backing plate for coupling an end of the connecting member close to the power assembly to the device housing;

[0075] wherein the first backing plate has:

[0076] an avoiding hole penetrating through the first backing plate in the first direction;

[0077] wherein the gas inlet end of the catalytic assembly is arranged in the avoiding hole.

[0078] According to a second aspect of the present application, there is provided an exhaust assembly comprising the exhaust device as described above.

[0079] Optionally, in some embodiments of the present application, the device body is configured to be coupled to the power assembly in a first direction, and the exhaust assembly further comprises:

[0080] a secondary muffler connected to the exhaust outlet of the device body;

[0081] wherein the secondary muffler is mounted to the power assembly of the vehicle, and the secondary muffler and the device body are arranged at different positions in a second direction intersecting the first direction.

[0082] Optionally, in some embodiments of the present application, the exhaust assembly further comprises:

[0083] a corrugated pipe connected between the gas inlet of the secondary muffler and the exhaust outlet of the device body.

[0084] Optionally, in some embodiments of the present application, the exhaust assembly further comprises:

[0085] a first mounting bracket for fixedly connecting the secondary muffler to the power assembly, so that the secondary muffler is kept on one side of an oil pan of the power assembly;

[0086] wherein the first mounting bracket is arranged on the outer side of the secondary muffler.

[0087] According to a third aspect of the present application, there is provided a power system comprising a power assembly and an exhaust assembly as described above.

[0088] According to a fourth aspect of the present application, there is provided a vehicle comprising a power system as described above.

[0089] Optionally, in some embodiments of the present application, the exhaust assembly and the power assembly are arranged in the front compartment of the vehicle.

[0090] The present application has the beneficial effect of providing an exhaust device, an exhaust assembly, a power system and a vehicle, which realizes reasonable assembly of the exhaust device and the power assembly by arranging a mounting hole for a fastener to pass through on the side of the device body close to the power assembly.

[0091] Specifically, in the exhaust device of the present application, a mounting hole for a fastener to pass through is arranged on the device body, and the mounting hole is located inside the device body, so that the device body is directly mounted to the power assembly, thereby reducing the requirement of the exhaust device for mounting space.

[0092] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0093] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0094] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0095] Figure 1 is the overall structure schematic diagram of the power system provided in the exemplary embodiments of the present application;

[0096] Figure 2 is the overall structure schematic diagram of the exhaust device provided in the exemplary embodiments of the present application;

[0097] Figure 3 is the rear side view of the exhaust device provided in the exemplary embodiments of the present application;

[0098] Figure 4 is the perspective view of the exhaust device provided in the exemplary embodiments of the present application, with the second shell hidden;

[0099] Figure 5 is the internal cross-sectional view of the exhaust device provided in the exemplary embodiments of the present application;

[0100] Figure 5A is another internal structure schematic diagram of the exhaust device provided in the exemplary embodiments of the present application;

[0101] Figure 6 is a perspective view of a connection piece and first and second backing plates in an exhaust device according to an example embodiment of the present application;

[0102] Figure 7 is a side view of a connection piece and first and second backing plates in an exhaust device according to an example embodiment of the present application;

[0103] Figure 8 is another internal cross-sectional view of an exhaust device according to an example embodiment of the present application;

[0104] Figure 9 is Figure 8 is an enlarged view of part A in

[0105] Figure 10 is a structural view showing a connection relationship between a catalytic assembly and a mounting flange in an exhaust device according to an example embodiment of the present application;

[0106] Figure 11 is a structural view of an exhaust assembly according to an example embodiment of the present application;

[0107] Figure 12 is a structural view of a vehicle according to an example embodiment of the present application.

[0108] BRIEF DESCRIPTION OF THE DRAWINGS

[0109] 100, exhaust device;

[0110] 100a, device body;

[0111] 110, device housing;

[0112] 110a, main housing; 111, first housing; 112, second housing; 112a, passage hole;

[0113] 113, mounting flange; 113a, mounting hole; 113b, exhaust inlet;

[0114] 121, first backing plate; 121a, relief hole;

[0115] 122, second backing plate;

[0116] 120a, fixing portion; 120b, support portion; 120c, fitting hole;

[0117] 131, fastener;

[0118] 140, connection piece; 141, guide passage;

[0119] 150, muffling assembly;

[0120] 160, catalytic assembly; 161, air inlet end; 162, air outlet end;

[0121] 170, partition plate;

[0122] 10, exhaust assembly; 210, sub-muffler; 220, first mounting bracket; 230, first mating bracket; 240, corrugated pipe;

[0123] 1, power system; 20, power assembly; 21, oil pan;

[0124] C, vehicle. DETAILED DESCRIPTION

[0125] 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 only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative labor fall within the protection scope of the present application.

[0126] According to a first aspect of the present application, with reference to Figures 1 to 5 The present application provides an exhaust device 100, comprising a device body 100a. The device body 100a is combined to the power assembly 20 of the vehicle C through the fastener 131.

[0127] It can be understood that the power assembly 20 comprises an engine, or an engine and an electric machine, the electric machine comprising at least one of a driving electric machine and a generator. Among them, the engine exhausts exhaust gas when working, and the device body 100a processes the exhaust gas exhausted by the power assembly 20. The device body 100a comprises at least one of a muffler and a catalyst.

[0128] The device body 100a is provided with a mounting hole 113a. The mounting hole 113a is used for the fastener 131 to pass through, and the mounting hole 113a is located inside the device body 100a.

[0129] It can be understood that the mounting hole 113a is completely located inside the edge of the device body 100a, and the extension of the mounting hole 113a can be arranged parallel to the combined direction or inclinedly intersected with the combined direction. In this way, the device body 100a can be directly installed to the power assembly 20, and no mounting space needs to be reserved between the device body 100a and the power assembly 20.

[0130] Through the above technical solution, by arranging the mounting hole 113a for the fastener 131 to pass through in the device body 100a, and the mounting hole 113a is located inside the device body 100a, the device body 100a is directly installed to the power assembly 20, thereby reducing the requirement of the exhaust device 100 for the mounting space.

[0131] Meanwhile, the support of the device body 100a is realized by the power assembly 20, and the whole of the power assembly 20 and the device body 100a can be hoisted into the vehicle C together, facilitating the assembly of the whole of the exhaust device 100 and the power assembly 20 with the vehicle C.

[0132] In some embodiments of the present application, referring to Figures 1 to 3 , the device body 100a is configured to be combined with the power assembly 20 along the first direction; in a projection plane perpendicular to the first direction, the projection of the hole wall of the mounting hole 113a is inside the projection of the device body 100a.

[0133] It can be understood that the projection of the hole wall of the mounting hole 113a is completely inside the projection of the device body 100a, and the projections of the two do not intersect. The mounting hole 113a can be arranged in different regions inside the edge of the device body 100a according to the installation requirements, which is not limited here.

[0134] It should be noted that the device body 100a is combined with the power assembly 20 along the first direction, and here the first direction indicates the front-rear direction only for the convenience of introducing the specific embodiments of the present application. The first direction does not have an absolute corresponding relationship with the front-rear direction, that is, at least part of the device body 100a can be installed on the front side of the power assembly 20, or can also be installed on the left side, right side, etc. of the power assembly 20.

[0135] Similarly, the second direction and the third direction also do not have an absolute corresponding relationship with the up-down direction and the left-right direction. The first direction, the second direction and the third direction of the present application are only for expressing the relative positional relationship, and they only indicate the approximate orientation, not the absolute geometric relationship.

[0136] In some specific embodiments, the fastener 131 can be a bolt, and correspondingly, the power assembly 20 is provided with a bolt hole matched with the fastener 131.

[0137] In some specific embodiments, the mounting hole 113a can be arranged in the central region of the device body 100a.

[0138] In some embodiments of the present application, referring to Figure 5 , at least one end of the fastener 131 is located inside the device body 100a.

[0139] It can be understood that one end of the fastener passes through the mounting hole and is connected with the power assembly, thereby realizing the installation of the device body to the power assembly, and the other end of the fastener is located inside the device body. The fastener is arranged in this way, which can avoid the fastener being too long due to spanning the two sides of the device body along the first direction, ensure the fastening effect of the fastener, and realize the hiding of the fastener.

[0140] In some embodiments of the present application, referring to Figure 1 and Figure 2 , the device body 100a is further provided with a passage hole 112a. The passage hole 112a is used for inserting the fastener 131 into the interior of the device body 100a; the mounting hole 113a is located on the side of the device body 100a close to the power assembly, and the passage hole is located on the side of the device body away from the power assembly.

[0141] It can be understood that, referring to Figure 5A , the device body 100a can be provided only with the mounting hole 113a and the passage hole 112a, and the interior of the device body is reserved for the internal space of the fastener 131 passing from the passage hole 112a to the mounting hole 113a.

[0142] With such a scheme, by the provision of the passage hole 112a, the fastener 131 can be smoothly inserted into the mounting hole 113a through the passage hole 112a.

[0143] In some embodiments of the present application, referring to Figures 1 to 5 , in the projection plane perpendicular to the first direction, the projection of the hole wall of the passage hole 112a at least partially coincides with the projection of the hole wall of the mounting hole 113a. With such a setting, after the fastener 131 enters through the passage hole 112a, it is quickly aligned with the mounting hole 113a.

[0144] In some specific embodiments, in the projection plane perpendicular to the first direction, the center of the projection of the hole wall of the passage hole 112a coincides with the center of the projection of the hole wall of the mounting hole 113a, that is, the axes of the passage hole and the mounting hole coincide.

[0145] In some other embodiments of the present application, the passage hole 112a can also be staggered relative to the mounting hole 113a, at which time the passage hole 112a and the mounting hole 113a have the same inclination direction.

[0146] In some embodiments of the present application, referring to Figures 4 to 6 , the device body 100a is further formed with a guide passage 141. At least part of the guide passage 141 is arranged between the mounting hole 113a and the passage hole 112a, and is used for guiding the fastener 131 from the passage hole 112a to the mounting hole 113a.

[0147] With such a scheme, by the provision of the guide passage 141, the fastener 131 can be guided, which is conducive to the quick and accurate alignment of the fastener 131 with the mounting hole 113a.

[0148] In some specific embodiments, the guide channel 141 can be continuously arranged between the mounting hole 113a and the channel hole 112a.

[0149] In some embodiments of the present application, referring to Figures 4 to 6 , the guide channel 141 is extended from the channel hole 112a to the mounting hole 113a, so that the continuous guidance of the fastener 131 can be achieved.

[0150] In some embodiments of the present application, referring to Figures 4 to 6 , the device body 100a comprises a connecting piece 140. The connecting piece 140 is formed with a guide channel 141; at least part of the connecting piece 140 is arranged between the channel hole 112a and the mounting hole 113a.

[0151] It can be understood that at least part of the connecting piece 140 is arranged inside the device body 100a, and extends from the side of the device body 100a away from the power assembly 20 to the side close to the power assembly 20 along the first direction.

[0152] With such a scheme, by arranging the connecting piece 140, not only is the formation of the guide channel 141 facilitated, but also the connecting piece 140 can transmit the force on both sides of the device body 100a in the first direction, thereby improving the stability of the device body 100a.

[0153] In some specific embodiments, the connecting piece 140 can be one of a circular tube, a polygonal tube or an elliptical tube.

[0154] In some embodiments of the present application, referring to Figures 1 to 5 , the device body 100a comprises a device shell 110; the mounting hole 113a is formed on the side of the device shell 110 close to the power assembly 20. By arranging the mounting hole 113a on the device shell 110, the machining of the mounting hole 113a is facilitated.

[0155] In some embodiments of the present application, referring to Figures 1 to 5 , the channel hole 112a is formed on the side of the device shell 110 away from the power assembly 20. By arranging the channel hole 112a on the device shell 110, the machining of the channel hole 112a is facilitated.

[0156] In some embodiments of the present application, referring to Figures 2 to 5 , the guide channel 141 of the connecting piece 140 guides the fastener 131 to the mounting hole 113a, and at least part of the connecting piece 140 is arranged inside the device shell 110.

[0157] With such a scheme, by arranging at least part of the connecting member 140 inside the device housing 110, the connecting member 140 can enhance the structural strength of the device housing 110 while guiding the fastener 131.

[0158] In some embodiments of the present application, referring to Figures 4 to 7 , the device body 100a further comprises: at least two lining plates. The lining plates are used to combine the connecting member 140 to the device housing 110; wherein, two adjacent lining plates are arranged at intervals in the first direction.

[0159] It can be understood that the connecting member 140 can be fixedly connected to the device housing 110 by the lining plate in a manner of welding, bolting, clamping, etc.

[0160] With such a scheme, by arranging the lining plate, the stability of the connection between the connecting member 140 and the device housing 110 can be improved.

[0161] In some embodiments of the present application, referring to Figures 5 to 7 , the lining plate comprises: a fixed part 120a and a supporting part 120b. The fixed part 120a is fixedly connected to the device housing 110; in the first direction, the supporting part 120b protrudes from the supporting part 120b, and the supporting part 120b is provided with a matching hole 120c for at least part of the connecting member 140 to pass through.

[0162] It can be understood that the fixed part 120a is in contact with the inner side of the device housing 110, and the fixed part 120a can be fixedly connected to the device housing 110 in a manner of welding, bolting, clamping, etc.

[0163] With such a scheme, by arranging the fixed part 120a, the contact area of the lining plate and the device housing 110 can be increased, the acting area of the force transmitted by the connecting member 140 on the device housing 110 can be increased, thereby reducing the local deformation of the device housing 110. At the same time, by arranging the matching hole 120c of the supporting part 120b, at least part of the connecting member 140 can be limited in the matching hole 120c, and the connecting member 140 is supported by the matching hole 120c, thereby improving the stability of the connecting member 140.

[0164] In some embodiments of the present application, referring to Figures 4 to 7 , the device body 100a comprises: a plurality of connecting members 140. The plurality of connecting members 140 are arranged at intervals in the second direction and / or the third direction; the second direction intersects the first direction, and the third direction intersects the first direction.

[0165] It can be understood that the plurality of connecting pieces 140 can be arranged in a single row in the second direction or the third direction; or the plurality of connecting pieces 140 can also be arranged in a matrix in the second direction and the third direction, for example, two rows of connecting pieces 140 are arranged in the second direction, and each row includes two connecting pieces 140.

[0166] The gasket includes a plurality of support portions 120b. The plurality of support portions 120b are arranged corresponding to the plurality of connecting pieces 140, so that the gasket combines the plurality of connecting pieces 140 to the device housing 110.

[0167] With such a scheme, by forming a plurality of support portions 120b on the same gasket, the assembly of the plurality of connecting pieces is facilitated.

[0168] In some embodiments of the present application, with reference to Figures 4 to 7 , the gasket includes a first gasket 121 and a second gasket 122.

[0169] The first gasket 121 and the second gasket 122 are arranged at the end of the connecting piece 140, respectively. The first gasket 121 is used to combine the end of the connecting piece 140 close to the power assembly 20 to the device housing 110; the second gasket 122 is used to combine the end of the connecting piece 140 away from the power assembly 20 to the device housing 110.

[0170] With such a scheme, by arranging the first gasket 121 and the second gasket 122, the structural strength of the connection between the connecting piece 140 and the device housing 110 is achieved, while avoiding excessive gasket arrangement to increase assembly difficulty.

[0171] In some specific embodiments, the first gasket 121 is welded to the inner side of the first shell 111, and the second gasket 122 is welded to the inner side of the second shell 112, so as to ensure the structural strength while avoiding the internal space of the device housing 110 to be communicated with the outside through the passage hole 112a, thereby achieving sealing of the device housing 110.

[0172] In some embodiments of the present application, with reference to Figure 3 , Figures 8 to 10 The device housing 110 includes a main shell 110a and an assembly flange 113.

[0173] The assembly flange 113 is formed with an exhaust gas inlet 113b to be connected to the exhaust port of the power assembly 20; the assembly flange 113 is fixedly connected to the side of the main shell 110a close to the power assembly 20, and the assembly flange 113 is formed with a mounting hole 113a.

[0174] It can be understood that the exhaust port of the power assembly 20 can be an exhaust manifold outlet or an exhaust port of an engine cylinder.

[0175] With such a scheme, the tail gas inlet 113b on the assembly flange 113 is directly connected to the exhaust port of the power assembly 20 by means of assembly, so that the device body 100a and the power assembly 20 do not need to be connected by a gas pipeline to transmit the tail gas, thereby reducing the volume of the whole formed by the device body 100a and the power assembly 20, and further reducing the requirement for installation space.

[0176] In some specific embodiments, with reference to Figures 2 to 5 , the main housing 110a comprises a first housing 111 and a second housing 112, wherein the assembly flange 113 is fixedly connected to the first housing 111 near the side face of the power assembly 20, and the first lining plate 121 is fixedly connected to the inner side face of the first housing 111 away from the power assembly 20. The first lining plate 121 is fixedly connected to the inner side face of the second housing 112 near the power assembly 20.

[0177] In some embodiments of the present application, with reference to Figure 3 and Figure 10 , the assembly flange 113 is configured to have a plurality of mounting holes 113a; the tail gas inlet 113b penetrates the assembly flange 113 in the first direction, and at least part of the tail gas inlet 113b is located within the area surrounded by the plurality of mounting holes 113a.

[0178] With such a scheme, by arranging the plurality of mounting holes 113a around the tail gas inlet 113b, the fastener 131 can provide uniform force around the tail gas inlet 113b, thereby improving the sealing of the connection between the assembly flange 113 and the power assembly 20.

[0179] In some embodiments of the present application, with reference to Figure 4 and Figure 5 , the device body 100a comprises a muffling assembly 150.

[0180] The muffling assembly 150 is used to reduce the noise generated by the tail gas, and to safely and effectively discharge the high-temperature tail gas. Moreover, the muffling assembly 150 is arranged inside the device housing 110, so that the device housing 110 provides protection for the muffling assembly 150.

[0181] It should be noted that the muffling assembly 150 comprises an existing muffler, and its structure and working principle will not be described again.

[0182] In some embodiments of the present application, with reference to Figure 4 and Figure 5 , at least part of the connecting member 140 penetrates the muffling assembly 150, so that the muffling assembly 150 provides support for the connecting member 140.

[0183] It can be understood that at least part of the connecting member 140 can be lapped on the muffling assembly 150, or be limited by the muffling assembly 150.

[0184] In this way, the connection is further stabilized by the support provided by the muffler assembly 150 to the connecting member 140.

[0185] In some embodiments of the application, with reference to Figure 4 , Figure 5 and Figure 8 , the device body 100a comprises a muffler assembly 150 and a catalytic assembly 160.

[0186] The muffler assembly 150 is used to attenuate the noise generated by the exhaust gas; the catalytic assembly 160 is used to catalytically treat the exhaust gas, converting harmful gases such as CO, HC and NOx in the exhaust gas into harmless carbon dioxide, water and nitrogen through oxidation and reduction. The muffler assembly 150 and the catalytic assembly 160 are respectively arranged inside the device housing 110.

[0187] The catalytic assembly 160 can be a combination of a three-way catalyst (TWC) and a particulate filter (GPF), or the catalytic assembly 160 can also be a combination of multiple three-way catalysts (TWC).

[0188] In this way, by arranging the muffler assembly 150 and the catalytic assembly 160 inside the device housing 110, the catalytic assembly 160 and the muffler assembly 150 are combined into one whole, achieving integrated design of the catalytic assembly 160 and the muffler assembly 150, facilitating overall installation of the catalytic assembly 160 and the muffler assembly 150, and improving assembly efficiency.

[0189] In some specific embodiments, a plurality of partitions 170 are arranged inside the device housing 110, wherein the muffler assembly 150 and the catalytic assembly 160 are respectively fixedly arranged in the partitions 170, thereby improving the stability of the muffler assembly 150 and the catalytic assembly 160, and the partitions can provide support between the first shell 111 and the second shell 112.

[0190] In some embodiments of the application, the guide channel 141 can be formed by the partitions 170, and accordingly, the arrangement of the connecting member 140 can be cancelled in this embodiment.

[0191] In some embodiments of the application, with reference to Figure 3 , Figures 8 to 10 , the device body 100a has an exhaust gas inlet 113b. The exhaust gas inlet 113b is used to dock with the exhaust port of the power assembly 20; wherein the gas inlet end 161 of the catalytic assembly 160 is communicated to the exhaust gas inlet 113b, and the gas outlet end 162 of the catalytic assembly 160 is connected and communicated to the muffler assembly 150, so that the catalytic assembly 160 can fully utilize the heat of the exhaust gas to activate the catalytic reaction.

[0192] In some embodiments of this application, reference is made to Figure 3 , Figures 8 to 10 The mounting flange 113 has an exhaust gas inlet 113b to connect with the exhaust port of the powertrain 20; wherein the intake end 161 of the catalytic converter 160 is connected to the mounting flange 113.

[0193] By adopting this approach, the air inlet 161 of the catalytic converter 160 is connected to the assembly flange 113, thereby reducing the amount of piping required.

[0194] In some specific embodiments, the inlet end 161 of the catalytic assembly 160 is embedded in the exhaust gas inlet 113b of the assembly flange 113.

[0195] In some embodiments of this application, reference is made to Figure 6 The first liner 121 has a clearance hole 121a. The clearance hole 121a extends through the first liner 121 in a first direction; the air inlet end 161 of the catalytic assembly 160 passes through the clearance hole 121a.

[0196] By adopting this scheme, the first liner 121 can provide support for the catalytic component 160 through the cooperation between the clearance hole 121a and the air inlet end 161 of the catalytic component 160, thereby improving the stability of the catalytic component 160.

[0197] According to the second aspect of this application, referring to Figure 1 and Figure 11 The present invention provides an exhaust gas assembly 10, which includes the exhaust gas device 100 described above. The exhaust gas assembly 10 has all the beneficial effects of the exhaust gas device 100 described above, which will not be repeated here.

[0198] In some embodiments of this application, reference is made to Figure 1 and Figure 11 The exhaust assembly 10 also includes: auxiliary muffler 210.

[0199] The auxiliary muffler 210 is connected to the exhaust outlet of the device body 100a to achieve auxiliary noise reduction. For example, the muffler assembly 150 can handle most of the low-frequency noise and exhaust pressure energy, while the auxiliary muffler 210 supplements and reduces high-frequency noise. The auxiliary muffler 210 is installed in the powertrain 20 of the vehicle C, and the auxiliary muffler 210 and the device body 100a are respectively located at different positions in a second direction, which intersects with the first direction.

[0200] It is understandable that the auxiliary silencer 210 and the device body 100a are spaced apart in the vertical direction.

[0201] With such a scheme, the noise reduction effect is further improved by the provision of the auxiliary muffler 210. Meanwhile, the auxiliary muffler 210 is supported by the power assembly 20, facilitating the assembly of the exhaust assembly 10 and the power assembly 20 as a whole with the vehicle C.

[0202] Moreover, the exhaust assembly 10 is mounted on the power assembly 20 as a whole without contacting the vehicle body, and the vibration generated by the exhaust assembly 10 is not directly transmitted to the vehicle body, thus increasing the comfort of the vehicle C.

[0203] In some specific embodiments, the auxiliary muffler 210 is in communication with the gas outlet side of the muffling assembly 150, and at least part of the auxiliary muffler 210 is located at the bottom of the power assembly 20.

[0204] In some specific embodiments, at least part of the auxiliary muffler 210 is located at the right side space of the oil pan 21.

[0205] In some embodiments of the present application, with reference to Figure 1 and Figure 11 the exhaust assembly 10 further comprises a corrugated pipe 240. The corrugated pipe 240 is connected between the gas inlet of the auxiliary muffler 210 and the exhaust outlet of the device body 100a.

[0206] With such a scheme, the corrugated pipe 240 is connected between the auxiliary muffler 210 and the device body 100a, facilitating the adjustment of the relative position of the auxiliary muffler 210 and the device body 100a and the absorption of displacement, and reducing the transmission of vibration of the device body 100a to the auxiliary muffler 210.

[0207] In some embodiments of the present application, with reference to Figure 1 and Figure 11 the exhaust assembly 10 further comprises a first mounting bracket 220.

[0208] The first mounting bracket 220 is used to fixedly connect the auxiliary muffler 210 to the power assembly 20, so that the auxiliary muffler 210 is kept on one side of the oil pan 21 of the power assembly 20. The first mounting bracket 220 is arranged on the outer side of the auxiliary muffler 210.

[0209] In some specific embodiments, the auxiliary muffler 210 is fixedly connected to the power assembly 20 by a plurality of first mounting brackets 220. The first mounting bracket 220 is welded to the outer side of the auxiliary muffler 210.

[0210] In some specific embodiments, with reference to Figure 1 and Figure 11The first mounting bracket 220 is fixedly connected to the power assembly 20 through a first matching bracket 230. The first matching bracket 230 and the first mounting bracket 220 can be assembled by bolt connection, pin shaft connection, clamping, or the like. The first matching bracket 230 is connected between the first mounting bracket 220 and the power assembly 20. Compared with the direct connection between the first mounting bracket 220 and the power assembly 20, the first matching bracket 230 can adapt to the machining error and assembly error of the device body 100a and the first mounting bracket 220, and reduce the assembly difficulty.

[0211] According to a third aspect of the present application, referring to Figure 1 , a power system 1 is provided, which comprises a power assembly 20 and the exhaust assembly 10 described above, and has all the beneficial effects of the exhaust assembly 10 described above, which will not be repeated here.

[0212] According to a fourth aspect of the present application, referring to Figure 12 , a vehicle C is provided, which comprises the power system 1 described above, and has all the beneficial effects of the power system 1 described above, which will not be repeated here.

[0213] The vehicle C can be a fuel automobile, a plug-in hybrid electric vehicle, or the like, which is not limited in the present application.

[0214] In some embodiments of the present application, the exhaust assembly 10 and the power assembly 20 are arranged in the front compartment of the vehicle C.

[0215] In the description of the present application, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0216] In the above embodiments, the description of each embodiment is focused on, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0217] The embodiments, implementation manners and related technical features of the present application can be combined or replaced with each other without conflict.

[0218] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present application, without departing from the technical solution of the present application, still falls within the scope of the technical solution of the present application.

Claims

1. An exhaust device (100), characterized in that Comprising: a device body (100a) coupled to a power assembly (20) of a vehicle (C) by a fastener (131); wherein the device body (100a) is provided with: a mounting hole (113a) for the fastener (131) to pass through; wherein the mounting hole (113a) is located inside the device body (100a).

2. The tail gas unit (100) according to claim 1, characterized in that The device body (100a) is configured to be coupled to the power assembly (20) in a first direction; wherein, in a projection plane perpendicular to the first direction, a projection of a hole wall of the mounting hole (113a) is inside a projection of the device body (100a).

3. The tail gas unit (100) according to claim 1, characterized in that At least one end of the fastener (131) is located inside the device body (100a).

4. The tail gas unit (100) according to claim 1, characterized in that The device body (100a) is further provided with: a passage hole (112a) for the fastener (131) to be inserted into the inside of the device body (100a); wherein the mounting hole is located on a side of the device body (100a) close to the power assembly (20), and the passage hole (112a) is located on a side of the device body (100a) away from the power assembly (20).

5. The exhaust device (100) according to claim 4, characterized in that The device body (100a) is configured to be coupled to the power assembly (20) in a first direction; In a projection plane perpendicular to the first direction, a projection of a hole wall of the passage hole (112a) at least partially coincides with a projection of a hole wall of the mounting hole (113a).

6. The tail gas unit (100) according to claim 4, characterized in that The device body (100a) is further formed with: a guide channel (141) for guiding the fastener (131) from the passage hole (112a) to the mounting hole (113a); wherein at least part of the guide channel (141) is arranged between the mounting hole (113a) and the passage hole (112a).

7. The tail gas unit (100) according to claim 4, characterized in that The guide channel (141) extends from the passage hole (112a) to the mounting hole (113a).

8. The exhaust device (100) according to claim 5, characterized in that The device body (100a) comprises: a connecting piece (140) formed with the guide channel (141); wherein at least part of the connecting piece (140) is arranged between the passage hole (112a) and the mounting hole (113a).

9. The exhaust device (100) according to any one of claims 1 to 8, characterized in that The device body (100a) comprises a device housing (110); wherein the mounting hole (113a) is formed on a side of the device housing (110) close to the power assembly (20).

10. The tail gas unit (100) according to claim 9, characterized in that The device body (100a) is provided with: a passage hole (112a) for the fastener (131) to be inserted into the inside of the device body (100a); wherein the passage hole (112a) is formed on a side of the device housing (110) away from the power assembly (20).

11. The exhaust device (100) according to claim 9, characterized in that The device body (100a) comprises: a connecting piece (140) formed with a guide channel (141) for guiding the fastener (131) to the mounting hole (113a); wherein at least part of the connecting piece (140) is arranged inside the device housing (110).

12. The exhaust device (100) according to claim 11, characterized in that The device body (100a) is configured to be combined with the power assembly (20) along a first direction, and the device body (100a) further comprises: At least two lining plates for combining the connecting pieces (140) with the device shell (110); Wherein, two adjacent lining plates are arranged at intervals in the first direction.

13. The exhaust device (100) according to claim 12, characterized in that The lining plate comprises: A fixed part (120a) fixedly connected to the device shell (110); A supporting part (120b) provided with a matching hole (120c) through which at least part of the connecting piece (140) passes; Wherein, in the first direction, the supporting part (120b) protrudes from the supporting part (120b).

14. The exhaust device (100) according to claim 13, characterized in that The device body (100a) comprises: A plurality of connecting pieces (140) arranged at intervals in a second direction and / or a third direction; Wherein, the second direction intersects the first direction, and the third direction intersects the first direction; The lining plate comprises: A plurality of supporting parts (120b) corresponding to a plurality of connecting pieces (140) to combine the plurality of connecting pieces (140) with the device shell (110).

15. The tail gas unit (100) according to claim 12, characterized in that The lining plate comprises: A first lining plate (121) for combining one end of the connecting piece (140) close to the power assembly (20) with the device shell (110); A second lining plate (122) for combining one end of the connecting piece (140) away from the power assembly (20) with the device shell (110); Wherein, the first lining plate (121) and the second lining plate (122) are arranged at the end of the connecting piece (140), respectively.

16. The tail gas unit (100) according to claim 9, characterized in that The device shell (110) comprises: A main shell (110a); An assembly flange (113) formed with a tail gas inlet (113b) to be docked with the exhaust port of the power assembly (20); Wherein, the assembly flange (113) is fixedly connected to the main shell (110a) close to one side of the power assembly (20), and the assembly flange (113) is formed with the mounting hole (113a).

17. The exhaust device (100) according to claim 16, characterized in that The device body (100a) is configured to be combined with the power assembly (20) along a first direction, The assembly flange (113) is configured to have a plurality of mounting holes (113a); Wherein, the tail gas inlet (113b) penetrates the assembly flange (113) along the first direction, and at least part of the tail gas inlet (113b) is located within the area surrounded by the plurality of mounting holes (113a).

18. The tail gas unit (100) according to claim 9, characterized in that The device body (100a) comprises: A muffling assembly (150) for attenuating noise generated by tail gas; Wherein, the muffling assembly (150) is arranged inside the device shell (110).

19. The exhaust device (100) according to claim 18, characterized in that The device body (100a) comprises: A connecting piece (140) formed with a guide channel (141) guiding a fastener (131) to the mounting hole (113a); Wherein, at least part of the connecting piece (140) is inserted into the muffling assembly (150), so that the muffling assembly (150) provides support for the connecting piece (140).

20. The tail gas unit (100) according to claim 9, characterized in that The device body (100a) comprises: a muffling assembly (150) for attenuating noise generated by exhaust gas; a catalytic assembly (160) for catalyzing exhaust gas; wherein the muffling assembly (150) and the catalytic assembly (160) are respectively arranged inside the device housing (110).

21. The exhaust device (100) according to claim 20, characterized in that The device body (100a) has: an exhaust gas inlet (113b) for interfacing with an exhaust port of the power assembly (20); wherein an intake end (161) of the catalytic assembly (160) is connected to the exhaust gas inlet (113b), and an exhaust end (162) of the catalytic assembly (160) is connected to the muffling assembly (150).

22. The exhaust device (100) according to claim 21, characterized in that The device housing (110) comprises: a mounting flange (113) formed with an exhaust gas inlet (113b) for interfacing with an exhaust port of the power assembly (20); wherein the intake end (161) of the catalytic assembly (160) is connected to the mounting flange (113).

23. The exhaust device (100) according to claim 21, characterized in that The device body (100a) is configured to be coupled to the power assembly (20) along a first direction, and the device body (100a) further comprises: a connecting member (140) formed with a guide channel (141) guiding a fastener (131) to the mounting hole (113a); a first backing plate (121) for coupling an end of the connecting member (140) close to the power assembly (20) to the device housing (110); wherein the first backing plate (121) has: an avoidance hole (121a) penetrating the first backing plate (121) along a first direction; wherein the intake end (161) of the catalytic assembly (160) is arranged in the avoidance hole (121a).

24. An exhaust assembly (10) characterized by, The exhaust device (100) according to any one of claims 1 to 23.

25. The exhaust assembly (10) of claim 24, characterized in that, The device body (100a) is configured to be coupled to the power assembly (20) along a first direction, and the exhaust assembly (10) further comprises: a secondary muffler (210) connected to an exhaust outlet of the device body (100a); wherein the secondary muffler (210) is mounted to the power assembly (20) of the vehicle (C), and the secondary muffler (210) and the device body (100a) are respectively arranged at different positions along a second direction intersecting the first direction.

26. The exhaust assembly (10) of claim 25, characterized in that, The exhaust assembly (10) further comprises: a corrugated pipe (240) connected between an intake port of the secondary muffler (210) and an exhaust outlet of the device body (100a).

27. The exhaust assembly (10) of claim 25, characterized in that, The exhaust assembly (10) further comprises: a first mounting bracket (220) for fixedly connecting the secondary muffler (210) to the power assembly (20) so that the secondary muffler (210) is retained on one side of an oil pan (21) of the power assembly (20); wherein the first mounting bracket (220) is arranged on an outer side of the secondary muffler (210).

28. A power system (1) characterized by The power assembly (20) and the exhaust assembly (10) according to any one of claims 25 to 27.

29. A vehicle (C) characterized by The power system (1) according to claim 28.

30. The vehicle (C) according to claim 29, characterized in that The exhaust assembly (10) and the power assembly (20) are disposed in a front compartment of the vehicle (C). The exhaust assembly (10) and the power assembly (20) are disposed in a front compartment of the vehicle (C). The exhaust assembly (10) and the power assembly (20) are disposed in

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