Catalytic converter and vehicle

Abstract

The utility model discloses a catalytic converter and a vehicle. The catalytic converter comprises a shell assembly, a catalyst assembly and a driving assembly, the air inlet part is arranged at the air inlet end of the shell assembly and is connected with the shell assembly; the air outlet part is arranged at the air outlet end of the shell assembly and is connected with the shell assembly; one end of the first catalytic carrier is connected with the air inlet part or the air outlet part, and the other end of the first catalytic carrier extends towards the shell assembly and is located in the shell assembly; the heat insulation shell is located between the first catalytic carrier and the shell assembly, one end of the heat insulation shell is connected with the first catalytic carrier, and the end, provided with the first catalytic carrier, of the shell assembly is connected with the heat insulation shell. According to the catalytic converter, the occupied space can be reduced, the durability is good, and the production time is short.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and more specifically, to a catalyst and a vehicle. Background Art

[0002] In some related technologies, when the first catalytic carrier and the shell assembly are welded at one time, due to the long length of the weld, a lot of heat is generated, and a lot of heat is transferred to the first catalytic carrier, which affects the durability of the catalyst. In addition, the first catalytic carrier has a large deformation amount, which is easy to cause problems such as breakage and damage.

[0003] In other related technologies, when the first catalytic carrier and the shell assembly are welded multiple times, the production time is long. Multiple welding can easily lead to excessive local thermal stress in the first catalytic carrier and pose a risk of durable cracking. Multiple welding also requires strict control of arc starting and arc ending positions, resulting in a low production qualification rate. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a catalyst, which can reduce the occupied space, has good durability and short production time.

[0005] Another object of the present invention is to provide a vehicle having the above catalyst.

[0006] The catalyst according to the embodiment of the utility model includes: a shell assembly; an air inlet portion, which is arranged at and connected to the air inlet end of the shell assembly; an air outlet portion, which is arranged at and connected to the air outlet end of the shell assembly; a first catalytic carrier, one end of which is connected to the air inlet portion or the air outlet portion, and the other end extends toward the shell assembly and is located inside the shell assembly; a thermal insulation shell, which is located between the first catalytic carrier and the shell assembly, one end of which is connected to the first catalytic carrier, and one end of the shell assembly provided with the first catalytic carrier is connected to the thermal insulation shell.

[0007] According to the catalyst of the embodiment of the utility model, one end of the first catalytic carrier is connected to the air inlet or the air outlet, and the other end extends toward the shell assembly and is located in the shell assembly, so that the structure is compact and can effectively reduce the space occupied by the catalyst, and the heat-insulating shell is located between the first catalytic carrier and the shell assembly, one end of the heat-insulating shell is connected to the first catalytic carrier, and one end of the shell assembly provided with the first catalytic carrier is connected to the heat-insulating shell, so that the heat and deformation generated by the welding of the heat-insulating shell and the shell assembly can be transmitted to the first catalytic carrier through the heat-insulating shell, thereby increasing the transmission path, effectively reducing the heat transmitted to the first catalytic carrier by welding, reducing the risk of the first catalytic carrier being damaged or broken due to overheating, and improving the durability of the catalyst, and the shell assembly and the heat-insulating shell can be welded at one time, which is easy to control and saves production time.

[0008] In addition, the catalyst according to the above embodiment of the utility model may also have the following additional technical features:

[0009] According to the catalyst of some embodiments of the present invention, one end of the thermal insulation shell close to the shell assembly has a protrusion protruding toward a side away from the first catalytic carrier, and the shell assembly is connected to a side of the protrusion away from the first catalytic carrier.

[0010] According to some embodiments of the utility model, thermal insulation cotton is provided between the thermal insulation shell and the first catalytic carrier, and the connection between the shell assembly and the thermal insulation shell is opposite to the thermal insulation cotton.

[0011] According to some embodiments of the present invention, the first catalytic carrier extends in an up-down direction.

[0012] According to some embodiments of the utility model, the catalyst further includes: a second catalytic carrier, wherein the second catalytic carrier and the first catalytic carrier are spaced apart in the extension direction of the shell assembly, and when one end of the first catalytic carrier is connected to one of the air inlet part or the air outlet part, one end of the second catalytic carrier is connected to the other.

[0013] According to some embodiments of the present invention, the shell assembly includes: a first shell and a second shell, the first shell and the second shell are opposite to each other and snap-fitted together, and the first shell and the second shell are both connected to the thermal insulation shell.

[0014] According to some embodiments of the present utility model, the first catalytic carrier includes: a first carrier body; a first carrier shell, the first carrier shell is sleeved outside the first carrier body, and the first carrier shell is connected to the air inlet part or the air outlet part.

[0015] According to some embodiments of the present invention, a first gasket is provided between the first carrier body and the first carrier shell.

[0016] According to some embodiments of the present utility model, the catalyst further includes: an EGR pipe, wherein the EGR pipe is in communication with the shell assembly.

[0017] A vehicle according to an embodiment of the present utility model includes the catalyst according to the embodiment of the present utility model.

[0018] According to the vehicle of the embodiment of the utility model, one end of the first catalytic carrier is connected to the air inlet or the air outlet, and the other end extends toward the shell assembly and is located in the shell assembly, so that the structure is compact and can effectively reduce the space occupied by the catalyst. The thermal insulation shell is located between the first catalytic carrier and the shell assembly, one end of the thermal insulation shell is connected to the first catalytic carrier, and one end of the shell assembly provided with the first catalytic carrier is connected to the thermal insulation shell, so that the heat and deformation generated by the welding of the thermal insulation shell and the shell assembly can be transmitted to the first catalytic carrier through the thermal insulation shell, thereby increasing the transmission path, effectively reducing the heat transmitted to the first catalytic carrier by welding, reducing the risk of damage and fragmentation of the first catalytic carrier due to overheating, and improving the durability of the catalyst. The shell assembly and the thermal insulation shell can be welded at one time, which is easy to control and saves production time.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic structural diagram of a catalyst according to an embodiment of the utility model at an angle;

[0022] Figure 2 is a schematic structural diagram of a catalyst according to an embodiment of the utility model from another angle;

[0023] Figure 3 yes Figure 2 A cross-sectional view along the direction indicated by line AA;

[0024] Figure 4 yes Figure 3 The middle circle shows the enlarged structural schematic diagram of point B.

[0025] Reference numerals:

[0026] 100. Catalyst;

[0027] 10. Shell assembly; 11. First shell; 12. Second shell;

[0028] 20. air intake; 21. air intake end cone; 22. air intake flange;

[0029] 30. outlet portion; 31. outlet end cone; 32. outlet pipe; 33. outlet flange;

[0030] 41. first catalytic carrier; 42. second catalytic carrier; 411. first carrier body; 412. first carrier shell; 413. first liner; 421. second carrier body; 422. second carrier shell; 423. second liner;

[0031] 50. heat-insulating shell; 51. raised portion; 52. heat-insulating cotton;

[0032] 60. EGR pipe; 61. EGR flange. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, the first feature "above", "above" and "above" the second feature may include the first feature being directly above and diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature.

[0036] The catalyst 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0037] Reference Figure 1-Figure 4 As shown, the catalyst 100 according to the embodiment of the present utility model may include: a housing assembly 10 , an air inlet 20 , an air outlet 30 and a first catalytic carrier 41 .

[0038] Specifically, the air inlet 20 is arranged at the air inlet end of the shell assembly 10, and the air inlet 20 is connected to the shell assembly 10, the air outlet 30 is arranged at the air outlet end of the shell assembly 10, and the air outlet 30 is connected to the shell assembly 10, one end of the first catalytic carrier 41 is connected to the air inlet 20, or one end of the first catalytic carrier 41 is connected to the air outlet 30, and the other end of the first catalytic carrier 41 extends toward the shell assembly 10, which can realize the fixation of the first catalytic carrier 41 in the shell assembly 10 to avoid problems such as movement, and the first catalytic carrier 41 is located in the shell assembly 10, so that the structure is compact, which can effectively reduce the occupied space of the catalyst 100 and realize the miniaturization of the catalyst 100.

[0039] Harmful gases (such as combustion exhaust gas, etc.) can enter the shell assembly 10 through the air intake 20, and the harmful gases can be converted into harmless carbon dioxide, water and nitrogen through the redox reaction of the first catalytic carrier 41, and discharged through the air outlet 30, effectively reducing the emission of harmful gases.

[0040] The inventors of the present application discovered that since the arrangement space of the catalyst 100 is constrained, when the first catalytic carrier 41 is located in the shell assembly 10, the shell assembly 10 needs to be welded in the middle of the first catalytic carrier 41. If the welding is completed in one go, the first catalytic carrier 41 is easily subjected to high heat, resulting in problems such as low durability, and is prone to deformation and breakage. If the welding is completed in multiple times, it is easy to affect the production rhythm, and multiple welding is difficult to control, which can easily lead to excessive local thermal stress, thereby causing the first catalytic carrier 41 to crack.

[0041] Therefore, in the present utility model, if Figure 1-Figure 4 As shown, the catalyst 100 also includes an insulating shell 50, which is located between the first catalytic carrier 41 and the shell assembly 10. One end of the insulating shell 50 is connected to the first catalytic carrier 41, so that the insulating shell 50 can be connected to the air inlet 20 or the air outlet 30. One end of the shell assembly 10 provided with the first catalytic carrier 41 is connected to the insulating shell 50 to realize the connection of the insulating shell 50.

[0042] The shell assembly 10 can be connected to the air inlet 20 or the air outlet 30 through the heat-insulating shell 50, so as to avoid the shell assembly 10 being connected to the air inlet 20 or the air outlet 30 through the first catalytic carrier 41 and causing damage to the first catalytic carrier 41. The heat and deformation generated by the welding of the heat-insulating shell 50 and the shell assembly 10 can be transferred to the first catalytic carrier 41 through the heat-insulating shell 50, thereby increasing the transfer path and effectively reducing the heat transferred to the first catalytic carrier 41 by welding, thereby reducing the risk of damage and fragmentation due to overheating and improving the durability of the catalyst 100. At the same time, the shell assembly 10 and the heat-insulating shell 50 can be welded at one time without multiple welding, which is easy to control, saves production time, and reduces the risk of cracking of the first catalytic carrier 41 due to multiple welding.

[0043] In some embodiments, the thermal insulation shell 50 may be a metal part, which facilitates the connection between the thermal insulation shell 50 and the first catalytic carrier 41 and the shell assembly 10 to meet the required connection requirements.

[0044] According to the catalyst 100 of the embodiment of the utility model, one end of the first catalytic carrier 41 is connected to the air inlet 20 or the air outlet 30, and the other end extends toward the shell assembly 10 and is located in the shell assembly 10, so that the structure is compact and can effectively reduce the occupied space of the catalyst 100, and the insulating shell 50 is located between the first catalytic carrier 41 and the shell assembly 10, one end of the insulating shell 50 is connected to the first catalytic carrier 41, and the end of the shell assembly 10 provided with the first catalytic carrier 41 is connected to the insulating shell 50, so that the heat and deformation generated by the welding of the insulating shell 50 and the shell assembly 10 can be transmitted to the first catalytic carrier 41 through the insulating shell 50, thereby increasing the transmission path, effectively reducing the heat transmitted to the first catalytic carrier 41 by welding, reducing the risk of damage and fragmentation of the first catalytic carrier 41 due to overheating, and improving the durability of the catalyst 100, and the shell assembly 10 and the insulating shell 50 can be welded at one time, which is easy to control and saves production time.

[0045] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, one end of the thermal insulation shell 50 close to the shell assembly 10 has a protrusion 51 protruding toward the side away from the first catalytic carrier 41, and the shell assembly 10 is connected to the side of the protrusion 51 away from the first catalytic carrier 41, which can make the first catalytic carrier 41 away from the connection between the thermal insulation shell 50 and the shell assembly 10, further reducing the heat transferred to the first catalytic carrier 41 by welding, reducing the risk of overheating, damage, and fragmentation of the first catalytic carrier 41, which is beneficial to improving the durability of the catalyst 100.

[0046] According to some embodiments of the present invention, Figure 3 and Figure 4As shown, a heat insulation cotton 52 is provided between the heat insulation shell 50 and the first catalytic carrier 41, and the connection between the shell assembly 10 and the heat insulation shell 50 is opposite to the heat insulation cotton 52, so that the heat and deformation generated by the welding of the heat insulation shell 50 and the shell assembly 10 can be transferred to the first catalytic carrier 41 through the heat insulation shell 50 and the heat insulation cotton 52, increasing the transfer path, and the heat insulation cotton 52 can be used for buffering, effectively reducing the heat transferred to the first catalytic carrier 41 by welding, thereby reducing the risk of damage and fragmentation due to overheating, and improving the durability of the catalyst 100. At the same time, the shell assembly 10 and the heat insulation shell 50 can be welded at one time without multiple welding, which is easy to control, saves production time, and reduces the risk of cracking of the first catalytic carrier 41 caused by multiple welding.

[0047] In addition, the heat insulation cotton 52 has a heat preservation and heat insulation effect, which is conducive to the rapid ignition of the catalyst in the first catalytic carrier 41, making the reaction faster, effectively reducing emissions, and can reduce the risk of heat damage to peripheral parts near the catalyst 100, extending the service life of the catalyst. For example, the heat insulation cotton 52 is a compressible and expandable structure, which can meet the required use requirements and is easy to assemble.

[0048] In some embodiments, the heat insulation cotton 52 is interference fit with the heat insulation shell 50 to ensure that the heat insulation cotton 52 is reliably fixed between the heat insulation shell 50 and the first catalytic carrier 41, and to avoid problems such as the heat insulation cotton 52 falling off. For example, the heat insulation cotton 52 can be pressed into the heat insulation shell 50 by filling.

[0049] In some specific embodiments, Figure 3 and Figure 4 As shown, one end of the insulation shell 50 close to the shell assembly 10 has a protrusion 51 protruding toward the side away from the first catalytic carrier 41, and the insulation cotton 52 is arranged in the protrusion 51. The shell assembly 10 is connected to the side of the protrusion 51 away from the first catalytic carrier 41. The protrusion 51 can ensure that the insulation cotton 52 is reliably fixed, which is convenient for assembly and is beneficial to improving assembly efficiency. It is also convenient for the heat and deformation generated by the welding of the insulation shell 50 and the shell assembly 10 to be transferred to the first catalytic carrier 41 through the insulation shell 50 and the insulation cotton 52, which effectively reduces the heat transferred to the first catalytic carrier 41 by welding, and improves the durability of the catalyst 100.

[0050] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the first catalytic carrier 41 extends in the up-down direction, which can meet the placement requirements of the first catalytic carrier 41, and the first catalytic carrier 41 is located in the shell assembly 10, which can effectively reduce the space occupied by the catalyst 100 in the up-down direction and meet the placement requirements of the catalyst 100.

[0051] According to some embodiments of the present invention, Figure 3 and Figure 4 As shown, the catalyst 100 also includes a second catalytic carrier 42, and the second catalytic carrier 42 and the first catalytic carrier 41 are arranged at intervals in the extension direction of the housing assembly 10. When one end of the first catalytic carrier 41 is connected to the air inlet 20, one end of the second catalytic carrier 42 is connected to the air outlet 30. As a result, harmful gases can enter the housing assembly 10 through the air inlet 20, and the harmful gases are converted into harmless carbon dioxide, water and nitrogen through the redox reaction of the first catalytic carrier 41 and the second catalytic carrier 42, and discharged through the air outlet 30, so that the conversion of harmful gases is more complete, and the emission of harmful gases is effectively reduced. For example, one end of the second catalytic carrier 42 can be connected to the air outlet 30 by welding to ensure reliable connection.

[0052] Of course, when one end of the first catalytic carrier 41 is connected to the air outlet 30 , one end of the second catalytic carrier 42 is connected to the air inlet 20 , which is also within the protection scope of the present utility model.

[0053] In some embodiments, the second catalytic carrier 42 can be used to capture particulate matter, so that the catalyst 100 can capture particulate matter in the harmful gas, prevent the particulate matter from being discharged through the outlet portion 30, and effectively reduce the emission of harmful gases.

[0054] In some embodiments, Figure 3 As shown, the other end of the second catalytic carrier 42 is connected to the housing assembly 10 to ensure that the second catalytic carrier 42 is reliably fixed and not prone to shaking. For example, the other end of the second catalytic carrier 42 can be connected to the housing assembly 10 by welding to ensure a reliable connection.

[0055] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the housing assembly 10 includes a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 are opposite to each other, and the first housing 11 and the second housing 12 are snap-fitted and connected to form a complete housing assembly 10, and the first housing 11 and the second housing 12 are both connected to the heat-insulating housing 50, ensuring that the heat-insulating housing 50 is reliably connected to the housing assembly 10. For example, the opposing butt surfaces of the first housing 11 and the second housing 12 can be formed into the housing assembly 10 by welding.

[0056] In some embodiments, the heat-insulating shell 50 is formed in a ring shape, which enables the shell assembly 10 to be reliably connected to the heat-insulating shell 50 and avoids problems such as air leakage.

[0057] In some embodiments where insulation cotton 52 is provided between the insulation shell 50 and the first catalytic carrier 41, the insulation cotton 52 is formed in a ring shape, ensuring that the insulation cotton 52 can play a good role in buffering and heat preservation and insulation, thereby improving the durability of the catalyst 100 and extending the service life of the catalyst.

[0058] In some embodiments, the first catalytic carrier 41 is formed into a cylindrical shape, which facilitates the placement of the first catalytic carrier 41 in the shell assembly 10 and facilitates the flow of harmful gases through the first catalytic carrier 41, thereby ensuring reliable conversion of harmful gases.

[0059] In some embodiments where the catalyst 100 further includes a second catalytic carrier 42, the second catalytic carrier 42 is formed into a cylindrical shape, which facilitates the placement of the second catalytic carrier 42 and facilitates the flow of harmful gases through the second catalytic carrier 42, thereby ensuring reliable conversion of harmful gases.

[0060] According to some embodiments of the present invention, Figure 3 and Figure 4 As shown, the first catalytic carrier 41 includes a first carrier body 411 and a first carrier shell 412, the first carrier shell 412 is sleeved outside the first carrier body 411, and the first carrier shell 412 is connected to the air inlet 20 or the air outlet 30, which can meet the connection requirements of the first catalytic carrier 41 and the air inlet 20 or the air outlet 30, and the first carrier shell 412 can protect the first carrier body 411 to avoid damage, fragmentation and other problems caused by collision to the first carrier body 411. For example, the first carrier shell 412 and the air inlet 20 or the air outlet 30 can be connected by welding to ensure reliable connection.

[0061] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, a first liner 413 is provided between the first carrier body 411 and the first carrier shell 412, and the first carrier body 411 can be protected by the first liner 413 to avoid damage caused by collision between the first carrier body 411 and the first carrier shell 412, thereby ensuring reliable protection of the first carrier body 411. For example, the first liner 413 is a compressible expansion structure, which meets the required use requirements and is easy to assemble.

[0062] In some embodiments of the catalyst 100 including the second catalyst carrier 42, such as Figure 3As shown, the second catalytic carrier 42 includes a second carrier body 421 and a second carrier shell 422. The second carrier shell 422 is sleeved outside the second carrier body 421, and the second carrier shell 422 is connected to the air inlet 20 or the air outlet 30, which can meet the connection requirements of the second catalytic carrier 42 and the air inlet 20 or the air outlet 30, and the second carrier shell 422 can protect the second carrier body 421 to avoid damage, fragmentation and other problems caused by collision to the second carrier body 421.

[0063] In some embodiments, Figure 3 As shown, a second gasket 423 is provided between the second carrier body 421 and the second carrier shell 422, and the second gasket 423 can protect the second carrier body 421, avoid the second carrier body 421 and the second carrier shell 422 from colliding and causing damage, and ensure reliable protection of the second carrier body 421. For example, the second gasket 423 is a compressible expansion structure, which meets the required use requirements and is easy to assemble.

[0064] According to some embodiments of the present invention, Figure 2-Figure 4 As shown, the catalyst 100 further includes an EGR pipe 60 , which is in communication with the housing assembly 10 . The exhaust gas in the housing assembly 10 can be recirculated through the EGR pipe 60 , thereby realizing the utilization of the exhaust gas.

[0065] In some embodiments, Figure 1-Figure 4 As shown, an EGR flange 61 is provided at one end of the EGR pipe 60 away from the housing assembly 10 , and the EGR pipe 60 can be connected to other structures through the EGR flange 61 to meet the required connection requirements.

[0066] In some embodiments, Figure 3-Figure 4 As shown, the EGR pipe 60 is formed in a tubular shape, which facilitates the flow of harmful gases in the EGR pipe 60 and ensures smooth flow.

[0067] In some embodiments, Figure 1-Figure 3 As shown, the air inlet portion 20 includes an air inlet end cone 21 and an air inlet flange 22. The air inlet end cone 21 is used to connect the air inlet flange 22 and the air inlet end of the housing assembly 10. The air inlet end of the housing assembly 10 can be connected to other structures through the air inlet flange 22, meeting the connection requirements of the catalyst 100. Harmful gases can enter the housing assembly 10 through the air inlet flange 22 and the air inlet end cone 21, and the harmful gases can be converted into harmless carbon dioxide, water and nitrogen through the redox reaction of the first catalytic carrier 41, and discharged through the air outlet 30, effectively reducing the emission of harmful gases. For example, the air inlet flange 22 and the air inlet end cone 21 can be connected by welding to ensure reliable connection.

[0068] In some embodiments, Figure 2 As shown, the air inlet flange 22 is formed in a circular shape, which facilitates the connection of the air inlet flange 22 with other structures and can meet the required connection requirements.

[0069] In some embodiments, Figure 3 and Figure 4 As shown, the air intake end cone 21 is formed into a tubular shape, which facilitates the flow of harmful gases in the air intake end cone 21 and ensures smooth flow.

[0070] In some embodiments, Figure 1-Figure 3 As shown, the outlet portion 30 includes an outlet cone 31, an outlet pipe 32 and an outlet flange 33. One end of the outlet pipe 32 is connected to the outlet flange 33, and the other end of the outlet pipe 32 is connected to the outlet cone 31. The end of the outlet cone 31 away from the outlet pipe 32 is connected to the outlet end of the housing assembly 10. The outlet flange 33 can realize the connection between the outlet end of the housing assembly 10 and other structures, meeting the connection requirements of the catalyst 100. Harmful gases can enter the housing assembly 10 through the air inlet 20, and the harmful gases can be converted into harmless carbon dioxide, water and nitrogen through the redox reaction of the first catalytic carrier 41, and discharged through the outlet cone 31, the outlet pipe 32 and the outlet flange 33, effectively reducing the emission of harmful gases. For example, the outlet cone 31, the outlet pipe 32 and the outlet flange 33 can be connected by welding to ensure reliable connection.

[0071] In some embodiments, Figure 1 and Figure 3 As shown, in the direction from the gas outlet end of the shell assembly 10 to the gas outlet pipe 32, the cross-sectional area of ​​the gas outlet end cone 31 gradually decreases, so that the gas outlet end cone 31 can be formed into a cone shape, which is convenient for gas discharge and makes the gas flow smoother.

[0072] In some embodiments, Figure 3-Figure 4 As shown, the air outlet pipe 32 is formed in a tubular shape, which facilitates the flow of harmful gases in the air outlet pipe 32 and ensures smooth flow.

[0073] The vehicle according to the embodiment of the present invention includes the catalyst 100 according to the embodiment of the present invention. Since the catalyst 100 according to the embodiment of the utility model has the above-mentioned beneficial technical effects, the vehicle according to the embodiment of the utility model is connected to the air intake part 20 or the air outlet part 30 through one end of the first catalytic carrier 41, and the other end extends toward the shell assembly 10 and is located in the shell assembly 10, so that the structure is compact and can effectively reduce the occupied space of the catalyst 100, and the insulating shell 50 is located between the first catalytic carrier 41 and the shell assembly 10, one end of the insulating shell 50 is connected to the first catalytic carrier 41, and the end of the shell assembly 10 provided with the first catalytic carrier 41 is connected to the insulating shell 50, so that the heat and deformation generated by the welding of the insulating shell 50 and the shell assembly 10 can be transmitted to the first catalytic carrier 41 through the insulating shell 50, thereby increasing the transmission path, effectively reducing the heat transmitted to the first catalytic carrier 41 by welding, reducing the risk of damage and fragmentation of the first catalytic carrier 41 due to overheating, and improving the durability of the catalyst 100, and the shell assembly 10 and the insulating shell 50 can be welded at one time, which is easy to control and saves production time.

[0074] In some embodiments, the catalyst 100 is an important off-board purification device in the exhaust system of the vehicle. As emission regulations become increasingly stringent, in order to effectively reduce exhaust emissions, the volume of the carrier of the catalyst 100 (such as the first catalytic carrier 41) is getting larger and larger, that is, the larger the volume of the carrier of the catalyst 100, the larger the specific surface area can be, thereby increasing the space required for the reaction of harmful gases, and effectively improving the efficiency of reducing exhaust emissions. However, due to the increasing demand for cruising range, the space occupied by the battery pack of the vehicle is increasing, resulting in a serious compression of the layout space of the catalyst 100.

[0075] Therefore, when the catalyst 100 of the present invention is applied to a vehicle, the first catalytic carrier 41 is located in the shell assembly 10, so that the structure is compact, which can effectively reduce the space occupied by the catalyst 100 and meet the placement requirements of the catalyst 100. The shell assembly 10 is connected to the air inlet 20 or the air outlet 30 through the insulating shell 50, thereby avoiding damage to the first catalytic carrier 41 caused by the connection between the shell assembly 10 and the air inlet 20 or the air outlet 30 through the first catalytic carrier 41, effectively reducing the heat transferred to the first catalytic carrier 41 by welding, and improving the durability of the catalyst 100.

[0076] The catalyst 100 and other components and operations of the vehicle according to the embodiment of the utility model are well known to those skilled in the art and will not be described in detail here.

[0077] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A catalyst, characterized in that: include: Shell assembly; An air inlet portion, the air inlet portion being disposed at and connected to an air inlet end of the housing assembly; An air outlet portion, the air outlet portion is disposed at and connected to the air outlet end of the housing assembly; a first catalytic carrier, one end of which is connected to the air inlet or the air outlet, and the other end of which extends toward the housing assembly and is located in the housing assembly; A heat-insulating shell is located between the first catalytic carrier and the shell assembly, one end of the heat-insulating shell is connected to the first catalytic carrier, and one end of the shell assembly provided with the first catalytic carrier is connected to the heat-insulating shell.

2. The catalyst according to claim 1, characterized in that One end of the heat-insulating shell close to the shell assembly has a protrusion protruding toward a side away from the first catalytic carrier, and the shell assembly is connected to a side of the protrusion away from the first catalytic carrier.

3. The catalyst according to claim 1, characterized in that Thermal insulation cotton is provided between the thermal insulation shell and the first catalytic carrier, and the connection between the shell assembly and the thermal insulation shell is opposite to the thermal insulation cotton.

4. The catalyst according to claim 1, characterized in that The first catalyst carrier extends in an up-down direction.

5. The catalyst according to claim 1, characterized in that Also includes: A second catalytic carrier, wherein the second catalytic carrier and the first catalytic carrier are spaced apart in the extension direction of the shell assembly, and when one end of the first catalytic carrier is connected to one of the air inlet portion or the air outlet portion, one end of the second catalytic carrier is connected to the other.

6. The catalyst according to claim 1, characterized in that The housing assembly comprises: A first shell and a second shell, wherein the first shell and the second shell are opposite to each other and are snap-connected, and both the first shell and the second shell are connected to the heat-insulating shell.

7. The catalyst according to claim 1, characterized in that The first catalytic carrier comprises: a first carrier body; The first carrier shell is sleeved outside the first carrier body, and the first carrier shell is connected to the air inlet or the air outlet.

8. The catalyst according to claim 7, characterized in that A first gasket is provided between the first carrier body and the first carrier shell.

9. The catalyst according to claim 1, characterized in that The catalyst further comprises: An EGR pipe is communicated with the housing assembly.

10. A vehicle, characterized in that: Comprising the catalyst according to any one of claims 1-9.

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