Exhaust purification apparatus and vehicle

Abstract

The utility model discloses a kind of exhaust purification device and vehicle, it is related to vehicle technical field, comprising: first stage catalytic converter, first stage catalytic converter includes first catalytic converter;Second stage catalytic converter, second stage catalytic converter includes multiple second catalytic converter, first connecting piece, multiple second catalytic converter is arranged along first direction and is communicated, along second direction, first stage catalytic converter is located in one side of second stage catalytic converter, first connecting piece is communicated between the second catalytic converter in multiple second catalytic converter and first catalytic converter located most upstream. By making multiple second catalytic converter sequentially arranged along first direction, and first stage catalytic converter is located in one side of second stage catalytic converter along second direction, first stage catalytic converter and second stage catalytic converter can be arranged compactly, can effectively reduce first catalytic converter and second catalytic converter heat loss, to improve the catalytic purification efficiency of exhaust purification device, and catalytic converter quantity is more, can satisfy emission standard.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to an exhaust purification device and a vehicle having the exhaust purification device. Background Technology

[0002] In related technologies, the vehicle exhaust system uses a two-stage split carrier catalytic converter to purify the vehicle exhaust. This type of catalytic converter has a large temperature loss during the catalytic purification process, a low carrier heating rate, low catalytic purification efficiency, and a small number of carriers, making it difficult to meet the increasingly stringent emission standards. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide an exhaust gas purification device that can effectively reduce heat loss and improve the catalytic purification efficiency of the exhaust gas purification device.

[0004] This utility model further proposes a vehicle.

[0005] The exhaust gas purification device according to this utility model includes: a first-stage catalyst, the first-stage catalyst including a first catalyst; a second-stage catalyst, the second-stage catalyst including a plurality of second catalysts and a first connector, the plurality of second catalysts being arranged sequentially and connected along a first direction, along a second direction intersecting the first direction, the first-stage catalyst being disposed on one side of the second-stage catalyst, along the gas flow direction, the first connector connecting the upstream second catalyst among the plurality of second catalysts and the first catalyst.

[0006] According to the exhaust purification device of this utility model, by arranging multiple second catalysts sequentially along a first direction, and placing the first-stage catalyst on one side of the second-stage catalyst along a second direction, the first-stage catalyst and the second-stage catalyst can be arranged compactly, which can effectively reduce the heat loss of the first-stage catalyst and the second-stage catalyst, thereby improving the catalytic purification efficiency of the exhaust purification device. Moreover, the large number of catalysts can meet the emission standards.

[0007] In some examples of this invention, along the second direction, at least one of the second catalysts has an overlapping region with the orthographic projection of the first-stage catalyst.

[0008] In some examples of this invention, along the second direction, at least a portion of the first connector is located between the first stage catalyst and the corresponding second catalyst.

[0009] In some examples of this invention, the second-stage catalyst further includes a second connector, which is connected to the downstream second catalyst among a plurality of second catalysts along the gas flow direction.

[0010] In some examples of this invention, along the second direction, at least a portion of the second connector is located between the first-stage catalyst and the corresponding second catalyst.

[0011] In some examples of this utility model, the second-stage catalyst further includes: a spacer, wherein the first connector and the second connector are integrally formed and together define an inner cavity, the spacer is disposed in the inner cavity to divide the inner cavity into a first sub-cavity and a second sub-cavity, the first sub-cavity is connected between the upstream second catalyst and the first-stage catalyst among a plurality of second catalysts, and the second sub-cavity is connected to the downstream second catalyst among a plurality of second catalysts.

[0012] In some examples of this utility model, the second-stage catalyst further includes a third connector, wherein the outlet end of the upstream second catalyst and the inlet end of the downstream second catalyst are connected through the third connector.

[0013] In some examples of this invention, the first-stage catalyst further includes: a housing defining a receiving space, the first catalyst being received in the receiving space, and a first connector communicating between the receiving space and the most upstream of a plurality of second catalysts, the first connector being connected to the housing.

[0014] In some examples of this invention, the number of the first catalysts is at least one; and / or, the gas passage of the first catalyst extends along the first direction; and / or, the gas passage of the second catalyst extends along the second direction.

[0015] The vehicle according to this utility model includes the exhaust purification device described above.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a cross-sectional view of the exhaust purification device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the exhaust purification device according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the gas flow direction inside the exhaust purification device according to an embodiment of the present invention.

[0018] Figure label: Exhaust gas purification device 100; First-stage catalyst 1; First catalyst 11; Housing 12; Containment space 121; Second-stage catalyst 2; second catalyst 21; first connector 22; second connector 23; exhaust pipe 231; inner cavity 24; first sub-cavity 241; second sub-cavity 242; spacer 25; third connector 26. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] The following is for reference. Figures 1-3 This invention describes an exhaust purification device 100 for a vehicle according to an embodiment of the present invention.

[0021] like Figures 1-3 As shown, the exhaust purification device 100 according to this utility model includes: a first-stage catalyst 1, which includes a first catalyst 11; a second-stage catalyst 2, which includes a plurality of second catalysts 21 and a first connector 22. The plurality of second catalysts 21 are arranged sequentially and connected along a first direction. Along a second direction intersecting the first direction, the first-stage catalyst 1 is disposed on one side of the second-stage catalyst 2. Along the gas flow direction, the first connector 22 connects the uppermost second catalyst 21 among the plurality of second catalysts 21 to the first catalyst 11.

[0022] The second-stage catalyst 2 includes multiple second catalysts 21, for example, the second-stage catalyst 2 includes two, three or more second catalysts 21. The first direction is... Figure 1 In the X direction, multiple second catalysts 21 are arranged sequentially along the first direction, and the multiple second catalysts 21 are connected. It can be understood that, along the gas flow direction, in two adjacent second catalysts 21, the gas outlet of the upstream second catalyst 21 is connected to the gas inlet of the downstream second catalyst 21.

[0023] Along the second direction, the second direction is Figure 1In the Y direction, the first direction and the second direction intersect, that is, the X direction and the Y direction intersect, for example, the first direction and the second direction are perpendicular. The first-stage catalyst 1 is located on one side of the second-stage catalyst 2. This arrangement allows the first-stage catalyst 1 and the second-stage catalyst 2 to be arranged compactly, effectively saving the arrangement space of the exhaust purification device 100. Furthermore, the compact arrangement of multiple second catalysts 21 and first catalysts 11 also allows the multiple second catalysts 21 and first catalysts 11 to insulate each other, effectively reducing the heat loss of the first catalyst 11 and second catalyst 21, thereby improving the catalytic purification efficiency of the exhaust purification device 100.

[0024] Along the gas flow direction, the first connector 22 connects the uppermost second catalyst 21 among the plurality of second catalysts 21 to the first catalyst 11. As some embodiments of this application, the first connector 22 connects the inlet end of the uppermost second catalyst 21 among the plurality of second catalysts 21 to the outlet end of the first catalyst 11, so that the gas purified by the first catalyst 11 can sequentially pass through the outlet end of the first catalyst 11, the first connector 22, and the inlet end of the second catalyst 21 into the uppermost second catalyst 21 among the plurality of second catalysts 21 for subsequent catalytic purification, thereby achieving a multi-stage catalytic purification effect for vehicle exhaust.

[0025] In some embodiments of this application, the first connector 22 is welded to the first-stage catalyst 1. In some embodiments of this application, the first connector 22 and the first-stage catalyst 1 are integrally formed. This arrangement improves the fixing reliability of the first connector 22, reduces the risk of separation between the first connector 22 and the first-stage catalyst 1 due to vehicle vibration, thereby reducing the risk of incompletely purified exhaust gas emissions. Furthermore, it allows for a compact arrangement of the first connector 22, the first-stage catalyst 1, and the upstream second catalyst 21 among multiple second catalysts 21, reducing heat loss.

[0026] Specifically, the first-stage catalyst 1 and the second-stage catalyst 2 are arranged along the second direction, and the multiple second catalysts 21 of the second-stage catalyst 2 are arranged sequentially and connected along the first direction. After the gas enters the first catalyst 11 from the inlet end of the first catalyst 11 for catalytic purification, it passes sequentially through the outlet end of the first catalyst 11, the first connector 22, and the inlet end of the second catalyst 21 into the uppermost second catalyst 21 of the multiple second catalysts 21 for subsequent catalytic purification. Furthermore, in two adjacent second catalysts 21, the outlet end of the uppermost second catalyst 21 is connected to the inlet end of the lowermost second catalyst 21, so that the gas passes through the multiple second catalysts 21 sequentially for catalytic purification.

[0027] Therefore, by arranging multiple second catalysts 21 sequentially along the first direction, and placing the first-stage catalyst 1 on one side of the second-stage catalyst 2 along the second direction, the first-stage catalyst 1 and the second-stage catalyst 2 can be arranged compactly, and the heat loss of the first catalyst 11 and the second catalyst 21 can be effectively reduced, thereby improving the catalytic purification efficiency of the exhaust purification device 100. Moreover, the large number of catalysts can meet the emission standards.

[0028] In some examples of this utility model, such as Figure 1 and Figure 2 As shown, along the second direction, at least one second catalyst 21 has an overlapping area with the orthographic projection of the first catalyst 1.

[0029] In some embodiments of this application, along the second direction, the orthographic projections of one second catalyst 21 and the first-stage catalyst 1 overlap in an area. In some embodiments of this application, along the second direction, the orthographic projections of two second catalysts 21 and the first-stage catalyst 1 overlap in an area. This arrangement allows for a more rational arrangement of the first-stage catalyst 1 and the second catalyst 21. By arranging at least one second catalyst 21 corresponding to the first-stage catalyst 1 along the second direction, the exhaust purification device 100 can be arranged more compactly. Furthermore, the corresponding second catalyst 21 and the first-stage catalyst 1 can mutually heat and insulate each other, greatly reducing heat loss and increasing the heating rate of the second catalyst 21 and the first-stage catalyst 1, thereby improving the catalytic purification efficiency of the exhaust purification device 100.

[0030] In some examples of this utility model, such as Figure 1 As shown, along the second direction, at least a portion of the first connector 22 is located between the first-stage catalyst 1 and the corresponding second catalyst 21.

[0031] In some embodiments of this application, a portion of the first connector 22 is located between the first-stage catalyst 1 and the corresponding second catalyst 21. In some embodiments of this application, the entire first connector 22 is located between the first-stage catalyst 1 and the corresponding second catalyst 21. The first connector 22 is used to connect the upstream second catalyst 21 among a plurality of second catalysts 21 with the first catalyst 11. By positioning at least a portion of the first connector 22 between the first-stage catalyst 1 and the corresponding second catalyst 21, the first connector 22, the connected second catalyst 21, and the first catalyst 11 can be arranged compactly, thereby making the exhaust purification device 100 more compact and helping to reduce heat loss.

[0032] In some examples of this utility model, such as Figure 1 and Figure 2As shown, the second-stage catalyst 2 may further include a second connector 23, which is connected to the downstream second catalyst 21 among a plurality of second catalysts 21 along the gas flow direction.

[0033] In some embodiments of this application, the second-stage catalyst 2 further includes an outlet pipe 231. Along the gas flow direction, the second connector 23 communicates with the downstream second catalyst 21 among the plurality of second catalysts 21. Further, the outlet pipe 231 connects to the outlet end of the second connector 23. This arrangement allows the gas purified by catalysis within the second catalyst 21 to enter the second connector 23 through the outlet end of the downstream second catalyst 21, and then smoothly exit through the outlet pipe 231. In some embodiments of this application, the second connector 23 is welded to the first-stage catalyst 1. In some embodiments of this application, the second connector 23 is integrally formed with the housing 12 of the first-stage catalyst 1. This arrangement improves the fixing reliability of the second connector 23, reduces the risk of separation between the second connector 23 and the first-stage catalyst 1 due to vehicle vibration, and allows for a compact arrangement of the second connector 23, the first-stage catalyst 1, and the downstream second catalyst 21 among the plurality of second catalysts 21, reducing heat loss.

[0034] In some examples of this utility model, such as Figures 1-3 As shown, along the second direction, at least a portion of the second connector 23 is located between the first-stage catalyst 1 and the corresponding second catalyst 21.

[0035] In some embodiments of this application, a portion of the second connector 23 is located between the first-stage catalyst 1 and the corresponding second catalyst 21. In one embodiment of this application, the entire second connector 23 is located between the first-stage catalyst 1 and the corresponding second catalyst 21. The second connector 23 is used to connect the downstream second catalyst 21 among a plurality of second catalysts 21 to the first-stage catalyst 1. By positioning at least a portion of the second connector 23 between the first-stage catalyst 1 and the corresponding second catalyst 21, the second connector 23, the connected second catalyst 21, and the first-stage catalyst 1 can be arranged compactly, and the first-stage catalyst 1 and the second catalyst 21 can be distributed on both sides of the second connector 23, effectively reducing heat loss.

[0036] In some examples of this utility model, such as Figure 1 and Figure 3As shown, the second-stage catalyst 2 may further include: a spacer 25, a first connector 22 and a second connector 23 integrally formed and jointly defining an inner cavity 24, the spacer 25 being disposed in the inner cavity 24 to divide the inner cavity 24 into a first sub-cavity 241 and a second sub-cavity 242, the first sub-cavity 241 being connected between the upstream second catalyst 21 and the first-stage catalyst 1 among the plurality of second catalysts 21, and the second sub-cavity 242 being connected to the downstream second catalyst 21 among the plurality of second catalysts 21.

[0037] The integral molding of the first connector 22 and the second connector 23 improves their thermal conductivity, facilitates mutual heating and insulation between them, greatly reduces heat loss, and increases the heating rate of the exhaust purification device 100, thereby enhancing its catalytic purification efficiency. The first connector 22 and the second connector 23 together define the inner cavity 24. A spacer 25 is disposed within the inner cavity 24. For example, the spacer 25 is welded or bonded to the inner surface of the inner cavity 24 to divide the inner cavity 24 into a first sub-cavity 241 and a second sub-cavity 242.

[0038] The first sub-cavity 241 connects the upstream second catalyst 21 among the plurality of second catalysts 21 to the first-stage catalyst 1. This arrangement allows for a compact layout of the first sub-cavity 241, the connected second catalyst 21, and the first-stage catalyst 1. The second sub-cavity 242 connects to the downstream second catalyst 21 among the plurality of second catalysts 21. This arrangement allows for a compact layout of the second sub-cavity 242 and the connected second catalyst 21, thereby making the entire exhaust purification device 100 compact.

[0039] In some examples of this utility model, such as Figure 1 As shown, the second-stage catalyst 2 may further include a third connector 26, wherein the outlet end of the upstream second catalyst 21 and the inlet end of the downstream second catalyst 21 are connected through the third connector 26.

[0040] In some embodiments of this application, along the second direction, the third connector 26 can be disposed on the side of the second catalyst 21 opposite to the first connector 22 and the second connector 23. That is, the first connector 22 and the third connector 26 are respectively disposed on both sides of the second catalyst 21 along the second direction, and the second connector 23 and the third connector 26 are also respectively disposed on both sides of the second catalyst 21 along the second direction. This arrangement reduces the interference risk between the first connector 22 and the third connector 26, and between the second connector 23 and the third connector 26, and facilitates assembly, thereby reducing the assembly difficulty of the exhaust purification device 100 and improving its assembly efficiency. In two adjacent second catalysts 21, the outlet end of the upstream second catalyst 21 and the inlet end of the downstream second catalyst 21 are connected through the third connector 26, allowing gas to flow sequentially from upstream to downstream among multiple second catalysts 21 via the third connector 26, thereby achieving a multi-stage catalytic purification effect and improving the vehicle's environmental friendliness.

[0041] In some examples of this utility model, such as Figure 1 and Figure 2 As shown, the first-stage catalyst 1 may further include: a housing 12, the housing 12 defining a receiving space 121, the first catalyst 11 being received in the receiving space 121, and a first connector 22 communicating between the receiving space 121 and the uppermost second catalyst 21 among a plurality of second catalysts 21, the first connector 22 being connected to the housing 12.

[0042] The housing 12 defines a receiving space 121, in which the first catalyst 11 is housed, allowing it to stably perform its catalytic function. A first connector 22 connects the receiving space 121 to the uppermost second catalyst 21 among the plurality of second catalysts 21. Specifically, the first connector 22 connects the intake end of the uppermost second catalyst 21 to the receiving space 121, allowing the gas purified by the first catalyst 11 to sequentially pass through the outlet end of the first catalyst 11, the receiving space 121, and the intake end of the second catalyst 21 into the uppermost second catalyst 21 for further catalytic purification, thus achieving a multi-stage catalytic purification effect for vehicle exhaust.

[0043] The first connector 22 is connected to the housing 12. In some embodiments of this application, the first connector 22 is welded to the housing 12. In some embodiments of this application, the first connector 22 and the housing 12 are integrally formed. This arrangement improves the fixing reliability of the first connector 22, reduces the risk of separation between the first connector 22 and the housing 12 due to vehicle bumps, thereby reducing the risk of incompletely purified exhaust gas emissions. Furthermore, connecting the first connector 22 to the housing 12 facilitates mutual heating and insulation between the two components, greatly reducing heat loss. In some embodiments of this application, the second connector 23 is connected to the housing 12. Connecting the second connector 23 to the housing 12 facilitates mutual heating and insulation between the second connector 23 and the housing 12, greatly reducing heat loss.

[0044] In some examples of this utility model, such as Figure 1 As shown, the number of first catalysts 11 is at least one; and / or, the gas passage of the first catalyst 11 extends along a first direction; and / or, the gas passage of the second catalyst 21 extends along a second direction.

[0045] In some embodiments of this application, the number of first catalysts 11 is at least one, for example, one, two, or more. This arrangement allows the number of first catalysts 11 to be adjusted according to national standards or the actual needs of the vehicle, effectively improving the versatility of the exhaust purification device 100 for different vehicles. If there are multiple first catalysts 11, the multiple first catalysts 11 can be arranged sequentially along the second direction.

[0046] In some embodiments of this application, the gas passage of the first catalyst 11 extends along a first direction. In some embodiments of this application, the gas passage of the second catalyst 21 extends along a second direction. In some embodiments of this application, the gas passage of the first catalyst 11 extends along the first direction and the gas passage of the second catalyst 21 extends along the second direction. This arrangement can further improve the rationality of the arrangement of the first catalyst 11 and the second catalyst 21, which is conducive to the compact arrangement of the first-stage catalyst 1 and the second-stage catalyst 2, effectively saving the arrangement space of the exhaust purification device 100, and can also effectively reduce the heat loss of the first catalyst 11 and the second catalyst, thereby improving the catalytic purification efficiency of the exhaust purification device 100.

[0047] The vehicle according to this utility model includes the exhaust purification device 100 described above. By arranging a plurality of second catalysts 21 sequentially along a first direction, and with the first-stage catalyst 1 located on one side of the second-stage catalyst 2 along a second direction, the first-stage catalyst 1 and the second-stage catalyst 2 can be arranged compactly, which can also effectively reduce the heat loss of the first catalyst 11 and the second catalyst 21, thereby improving the catalytic purification efficiency of the exhaust purification device 100. Furthermore, the large number of catalysts can meet emission standards.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0049] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0050] In the description of this utility model, "multiple" means two or more.

[0051] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0052] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An exhaust gas purification device (100), characterized by, include: First-stage catalyst (1), the first-stage catalyst (1) includes a first catalyst (11); The second-stage catalyst (2) includes multiple second catalysts (21) and a first connector (22). The multiple second catalysts (21) are arranged sequentially and connected along a first direction. Along a second direction intersecting the first direction, the first-stage catalyst (1) is located on one side of the second-stage catalyst (2). Along the gas flow direction, the first connector (22) connects the uppermost second catalyst (21) among the multiple second catalysts (21) to the first catalyst (11).

2. The exhaust purification apparatus (100) according to claim 1, characterized by Along the second direction, at least one of the second catalysts (21) has an overlapping region with the orthographic projection of the first catalyst (1).

3. The exhaust purification apparatus (100) according to claim 1, characterized by, Along the second direction, at least a portion of the first connector (22) is located between the first stage catalyst (1) and the corresponding second catalyst (21).

4. The exhaust purification apparatus (100) according to claim 1, characterized by The second-stage catalyst (2) further includes a second connector (23) which is connected to the downstream second catalyst (21) among a plurality of second catalysts (21) along the gas flow direction.

5. The exhaust purification apparatus (100) according to claim 4, characterized by Along the second direction, at least a portion of the second connector (23) is located between the first stage catalyst (1) and the corresponding second catalyst (21).

6. The exhaust purification apparatus (100) according to claim 4, characterized by The second-stage catalyst (2) further includes a spacer (25), wherein the first connector (22) and the second connector (23) are integrally formed and together define an inner cavity (24), the spacer (25) is disposed in the inner cavity (24) to divide the inner cavity (24) into a first sub-cavity (241) and a second sub-cavity (242), the first sub-cavity (241) is connected between the upstream second catalyst (21) among the plurality of second catalysts (21) and the first-stage catalyst (1), and the second sub-cavity (242) is connected to the downstream second catalyst (21) among the plurality of second catalysts (21).

7. The exhaust gas purification device (100) according to claim 1, characterized in that, The second-stage catalyst (2) further includes a third connector (26), wherein the outlet end of the upstream second catalyst (21) and the inlet end of the downstream second catalyst (21) are connected through the third connector (26).

8. The exhaust purification apparatus (100) according to claim 1, characterized by The first-stage catalyst (1) further includes: a housing (12) defining a receiving space (121) in which the first catalyst (11) is received, and a first connector (22) connecting the receiving space (121) to the uppermost second catalyst (21) among a plurality of second catalysts (21), the first connector (22) being connected to the housing (12).

9. The exhaust gas purification device (100) according to any one of claims 1-8, characterized in that, The number of the first catalyst (11) is at least one; And / or, the gas passage of the first catalyst (11) extends along the first direction; And / or, the gas passage of the second catalytic converter (21) extends in the second direction.

10. A vehicle characterized by comprising: An exhaust gas purification device (100) according to any one of claims 1 to 9.

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