Automobile exhaust purification treatment device

Abstract

The invention relates to the technical field of purification devices. The invention provides an automobile tail gas purification treatment device which comprises a shell, a plurality of gas inlets, a plurality of gas outlets, a plurality of exhaust pipes and a plurality of exhaust pipes. The plurality of purifiers are arranged in the shell and are arranged at intervals in the first direction, a plurality of sub-cavities are defined by the plurality of purifiers and the inner surface of the shell, each sub-cavity is communicated with at least one air inlet, each purifier is provided with a plurality of purification through holes, each purification through hole extends in the first direction, and each purification through hole is communicated with the corresponding air inlet. Any two adjacent sub-cavities are communicated through the purification through hole of one purifier; in the first direction, the sub-cavity, located on the outermost side, in the multiple sub-cavities communicates with the exhaust port. According to the automobile tail gas purification treatment device, the structure of the automobile tail gas purification treatment device is reasonably arranged, the occurrence probability of blockage of the purifiers can be effectively reduced, the purification effect of the automobile tail gas purification treatment device can be guaranteed, the service life of the purifiers can be prolonged, and the service life of the automobile tail gas purification treatment device can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of purification devices, and in particular to an automobile exhaust purification treatment device. Background Art

[0002] In the related art, a purification module is provided in the automobile exhaust purification treatment device, and an air inlet and an exhaust port are provided on the automobile exhaust purification treatment device. The purification module extends from the air inlet to the exhaust port, and the automobile exhaust is treated by the purification module. However, since unburned dust particles often remain in the exhaust gas, these dust particles often block the purification module during the exhaust emission process, affecting the purification effect of the exhaust gas, resulting in a short service life of the automobile exhaust purification treatment device.

[0003] Specifically, the purification module extends from the air inlet to the exhaust port, and the automobile exhaust flows from the end of the purification module facing the air inlet to the end of the purification module facing the exhaust port. The end of the purification module facing the air inlet will continue to react with the automobile exhaust. When the end of the purification module facing the air inlet is blocked by dust particles in the automobile exhaust, the end of the purification module facing the exhaust port is still in a normal purification state, that is, even if a part of the purification module still has a purification function, the end of the purification module facing the exhaust port is blocked, so the purification module still needs to be replaced as a whole. In this way, the service life of the automobile exhaust purification treatment device is greatly reduced, and the purification effect of the automobile exhaust purification treatment device is affected. Summary of the invention

[0004] Based on this, it is necessary to provide an automobile exhaust purification device to address the problems of short service life and poor exhaust purification effect of current automobile exhaust purification devices.

[0005] The above purpose is achieved through the following technical solutions: A vehicle exhaust purification treatment device comprises: a shell, on which a plurality of air inlets and exhaust ports are provided; a plurality of purifiers are arranged in the shell, the plurality of purifiers are arranged at intervals along a first direction, the plurality of purifiers and the inner surface of the shell enclose a plurality of sub-cavities, each sub-cavity is connected to at least one air inlet, each purifier is provided with a plurality of purification through holes, each purification through hole extends along the first direction, and any two adjacent sub-cavities are connected through the purification through hole of a purifier; wherein, along the first direction, the outermost sub-cavity among the plurality of sub-cavities is connected to the exhaust port.

[0006] Furthermore, the number of exhaust ports is at least one; when the number of exhaust ports is multiple, along the first direction, in the two outermost sub-cavities, one sub-cavity is connected to at least one exhaust port, and the other sub-cavity is connected to at least one exhaust port.

[0007] Furthermore, the purifier is movably connected to the shell, and the purifier can move relative to the shell.

[0008] Furthermore, the purifier includes: a mounting shell, which is a cylindrical structure; two blade groups, both of which are connected to the inner circumferential wall of the mounting shell, the blade group includes a plurality of blades, the plurality of blades are arranged at intervals around the axis of the mounting shell, and each blade has a first end and a second end that are relatively set, the first end is connected to the inner circumferential wall of the mounting shell, and the second end is arranged at intervals around the axis of the mounting shell; a purification module, which is connected to the inner circumferential wall of the mounting shell, and along a first direction, the purification module is located between the two blade groups, the purification module is provided with a plurality of purification through holes, and each blade also has a third end and a fourth end that are relatively set, the third end is adjacent to the end of the mounting shell, and the fourth end is adjacent to the purification module; wherein the blade group is used to drive the mounting shell and the purification module to rotate relative to the shell around the axis of the mounting shell under the action of airflow.

[0009] Furthermore, the purification module is movably connected to the inner peripheral wall of the installation shell, and the purification module can move relative to the installation shell.

[0010] Furthermore, the inner circumferential wall of the mounting shell is provided with two first grooves, the axis of the mounting shell is located between the two first grooves, the first groove is located between the two blade groups, and a limiting groove is provided in the middle of the part of the mounting shell located between the two first grooves along the circumferential direction of the mounting shell; the groove walls of the first groove in the circumferential direction of the mounting shell are respectively recorded as the first groove wall and the second groove wall, the first groove wall and the second groove wall are both provided with two slide grooves, the two slide grooves are arranged at intervals along the axial direction of the mounting shell, the slide groove has a first slide groove end and a second slide groove end, the first slide groove ends of the two slide grooves are adjacent to each other, the second slide groove ends of the two slide grooves are far away from each other, and the second slide groove end is closer to the blade than the first slide groove end. The blade group, the distance from the first slide groove end to the axis of the mounting shell is greater than the distance from the second slide groove end to the axis of the mounting shell; the purification module is provided with two connection groups and two bosses, each connection group cooperates with a first groove, the connection group includes two connection plates, the two connection plates are arranged at intervals along the axial direction of the mounting shell, and along the circumference of the mounting shell, sliders are provided on the opposite sides of each connection plate, the sliders are slidably connected to the slide groove, and each boss is rotatably connected to a limit groove; the automobile exhaust purification treatment device also includes a plurality of first elastic parts, a first elastic part is connected between the side of the connection plate facing the blade group and the groove wall of the first groove, and the first elastic part is used to reset the purification module.

[0011] Furthermore, a chamfer is provided at the connection between the axial end face of the purification module and the outer peripheral wall of the purification module; when the purification module is deflected relative to the mounting shell, the inner peripheral wall of the mounting shell and the chamfer are misaligned and a gap is formed.

[0012] Furthermore, the purifier also includes: a connecting piece, and the mounting shell and the inner surface of the shell are movably connected through the connecting piece.

[0013] Furthermore, an annular groove is provided on the outer peripheral wall of the mounting shell, and the annular groove extends along the circumference of the purification module; the connecting part includes an annular plate and a plurality of connecting blocks, the annular plate is located in the annular groove, and the annular plate is rotatably connected to the annular groove, the plurality of connecting blocks are arranged on the outer peripheral wall of the annular plate, and the plurality of connecting blocks are arranged at intervals along the circumference of the mounting shell; a plurality of second grooves are provided in the shell, and each connecting block is arranged in a second groove; the automobile exhaust purification treatment device also includes a plurality of elastic groups, each elastic group is arranged in a second groove, the elastic group includes two second elastic parts, and along the axial direction of the mounting shell, the connecting block is located between the two second elastic parts, and the elastic group is used to reset the purifier.

[0014] Furthermore, the automobile exhaust purification treatment device also includes: multiple first baffles, each first baffle is connected to an air inlet, and the first baffle is used to open and close the air inlet; at least one second baffle, each second baffle is connected to an exhaust port, and the second baffle is used to open and close the exhaust port; multiple air inlets are arranged at intervals along the first direction, and a purifier is provided between any two adjacent air inlets.

[0015] The beneficial effects of the present invention are: The automobile exhaust gas purification treatment device of the present invention comprises a housing and a plurality of purifiers, wherein the plurality of purifiers are arranged in the housing, that is, the housing serves as a mounting carrier for the plurality of purifiers and has the function of mounting and fixing the plurality of purifiers.

[0016] The shell is provided with a plurality of air inlets and exhaust ports. Automobile exhaust gas enters the shell through at least one of the plurality of air inlets, and is discharged from the automobile exhaust gas purification treatment device through the exhaust port after being purified by a plurality of purifiers.

[0017] The inner surface of the multiple purifiers and the shell encloses multiple sub-cavities, and each sub-cavity is connected to at least one air inlet. Each purifier is provided with multiple purification through holes, and each purification through hole extends along the first direction. Any two adjacent sub-cavities are connected through the purification through hole of a purifier. In other words, any two adjacent sub-cavities are connected. In this way, no matter which air inlet the automobile exhaust enters the shell, it can be discharged from the exhaust port of the automobile exhaust purification treatment device after being purified by the purifier.

[0018] A plurality of purifiers and the inner surface of the shell enclose a plurality of sub-cavities. For each sub-cavity, the purifier forms a portion of the cavity wall of the sub-cavity, and the inner surface of the shell forms another portion of the cavity wall of the sub-cavity. Along the first direction, each purifier is located between two sub-cavities. That is, one side axial end surface of the purifier forms a portion of the cavity wall of one sub-cavity, and the other side axial end surface of the purifier forms a portion of the cavity wall of another sub-cavity.

[0019] The present invention reasonably sets the number of purifiers, and sets a shell with multiple air inlets and exhaust ports and a matching structure of multiple purifiers, so that automobile exhaust can enter multiple purifiers through multiple air inlets at the same time, so that the reaction time of each purifier and automobile exhaust can be balanced. This setting can enhance the purification capacity of each purifier. Of course, the opening and closing of multiple air inlets and exhaust ports can also be controlled, and the position of automobile exhaust entering the shell can be repeatedly changed, so as to change the air intake direction of automobile exhaust entering the shell. The exhaust gas in the sub-cavities on both sides of the purifier can recoil the purifier, so that the probability of purifier blockage can be effectively reduced, the purification effect of the automobile exhaust purification treatment device can be guaranteed, and it is beneficial to extend the service life of multiple purifiers and the service life of the automobile exhaust purification treatment device.

[0020] In addition, the outermost sub-cavity among the multiple sub-cavities is connected to the exhaust port, so that at least a portion of the automobile exhaust can be effectively purified step by step and multiple times by multiple purifiers, which is beneficial to improving the purification effect of the automobile exhaust purification treatment device.

[0021] A catalyst is attached to the hole wall of each purification through hole of the purifier. The catalyst can cause oxidation-reduction reactions between harmful chemical components in automobile exhaust gas, and finally generate harmless gas, thereby achieving the purpose of purifying exhaust gas.

[0022] There are multiple purifiers, and there are multiple sub-cavities enclosed by the multiple purifiers and the inner surface of the shell. In this way, even if some of the purifiers are damaged, the exhaust gas can still be purified by the remaining purifiers. While ensuring the purification effect of the automobile exhaust gas purification treatment device, the replacement frequency of the automobile exhaust gas purification treatment device can be reduced, and the service life of the automobile exhaust gas purification treatment device can be further extended, which is beneficial to improving the performance of the product.

[0023] A plurality of purifiers are arranged at intervals along the first direction. Compared with the arrangement position of the purification module in the related art, this arrangement reduces the amount of purifiers used, and can reduce the production cost of the automobile exhaust purification treatment device while ensuring the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a first-viewing angle of an automobile exhaust purification device according to an embodiment of the present invention; Figure 2 A schematic structural diagram of a second viewing angle of an automobile exhaust purification device according to an embodiment of the present invention; Figure 3 for Figure 2 The cross-sectional view of the automobile exhaust purification device along the AA direction is shown; Figure 4 for Figure 3A partial enlarged view of position B of the automobile exhaust purification treatment device shown; Figure 5 This is a schematic diagram of the first part of the structure of an automobile exhaust purification treatment device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the second part of the structure of the automobile exhaust purification treatment device according to one embodiment of the present invention; Figure 7 for Figure 6 The enlarged view of the part C of the automobile exhaust purification device shown; Figure 8 This is a schematic structural diagram of the third part of the automobile exhaust purification treatment device according to one embodiment of the present invention; Fig. 9 This is a schematic structural diagram of the fourth part of the automobile exhaust purification treatment device according to one embodiment of the present invention; Fig.10 for Fig. 9 A partial enlarged view of location D of the automobile exhaust purification device shown.

[0025] in: 10. Automobile exhaust purification device; 100. Shell; 110. Air inlet; 120. Exhaust port; 130. Second groove; 200. Purifier; 210. Purification through hole; 220. Mounting shell; 222. First groove; 2222. First groove wall; 2224. Second groove wall; 224. Slide; 2242. First slide end; 2244. Second slide end; 226. Limiting groove; 228. Annular groove; 229. Axis of mounting shell; 230 , blade group; 232, blade; 2322, first end; 2324, second end; 2326, third end; 2328, fourth end; 240, purification module; 242, connection group; 2422, connection plate; 2424, slider; 244, boss; 246, chamfer; 250, connector; 252, annular plate; 254, connection block; 300, sub-cavity; 400, first elastic member; 500, elastic group; 510, second elastic member. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] Refer to the following Figures 1 to 10 The automobile exhaust gas purification device 10 according to some embodiments of the present invention is described.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, an automobile exhaust purification treatment device 10 includes: a shell 100, on which a plurality of air inlets 110 and exhaust ports 120 are provided; a plurality of purifiers 200 are arranged in the shell 100, and the plurality of purifiers 200 are arranged at intervals along a first direction, and the plurality of purifiers 200 and the inner surface of the shell 100 enclose a plurality of sub-cavities 300, each sub-cavity 300 is connected to at least one air inlet 110, and each purifier 200 is provided with a plurality of purification through holes 210, each purification through hole 210 extends along the first direction, and any two adjacent sub-cavities 300 are connected through the purification through hole 210 of a purifier 200; wherein, along the first direction, the outermost sub-cavity 300 among the plurality of sub-cavities 300 is connected to the exhaust port 120.

[0031] In this embodiment, the automobile exhaust purification treatment device 10 includes a shell 100 and a plurality of purifiers 200. The plurality of purifiers 200 are arranged in the shell 100. That is, the shell 100 serves as an installation carrier for the plurality of purifiers 200 and has the function of installing and fixing the plurality of purifiers 200.

[0032] The housing 100 is provided with a plurality of air inlets 110 and an exhaust port 120 . Automobile exhaust gas enters the housing 100 through at least one of the plurality of air inlets 110 , and is discharged from the automobile exhaust gas purification treatment device 10 through the exhaust port 120 after being purified by a plurality of purifiers 200 .

[0033] The inner surface of the multiple purifiers 200 and the housing 100 encloses multiple sub-cavities 300, and each sub-cavity 300 is connected to at least one air inlet 110. Each purifier 200 is provided with multiple purification through holes 210, and each purification through hole 210 extends along the first direction. Any two adjacent sub-cavities 300 are connected through the purification through hole 210 of a purifier 200. In other words, any two adjacent sub-cavities 300 are connected. In this way, no matter which air inlet 110 the automobile exhaust enters the housing 100, it can be discharged from the automobile exhaust purification treatment device 10 through the exhaust port 120 after purification by the purifier 200.

[0034] A plurality of purifiers 200 and the inner surface of the housing 100 enclose a plurality of sub-cavities 300. For each sub-cavity 300, the purifier 200 forms a portion of the cavity wall of the sub-cavity 300, and the inner surface of the housing 100 forms another portion of the cavity wall of the sub-cavity 300. Along the first direction, each purifier 200 is located between two sub-cavities 300. That is, an axial end surface on one side of the purifier 200 forms a portion of the cavity wall of one sub-cavity 300, and an axial end surface on the other side of the purifier 200 forms a portion of the cavity wall of another sub-cavity 300.

[0035] The present invention reasonably sets the number of purifiers 200, and sets the matching structure of the housing 100 with multiple air inlets 110 and exhaust ports 120 and multiple purifiers 200, so that the automobile exhaust can enter the multiple purifiers 200 through the multiple air inlets 110 at the same time, so that the reaction time of each purifier 200 and the automobile exhaust can be balanced. This setting can enhance the purification capacity of each purifier 200. Of course, the opening and closing of the multiple air inlets 110 and the exhaust ports 120 can also be controlled, and the position of the automobile exhaust entering the housing 100 can be repeatedly changed, so as to change the air intake direction of the automobile exhaust entering the housing 100. The exhaust of the sub-cavity 300 located on both sides of the purifier 200 can recoil the purifier 200, so that the probability of blockage of the purifier 200 can be effectively reduced, and the purification effect of the automobile exhaust purification treatment device 10 can be guaranteed, which is conducive to extending the service life of the multiple purifiers 200 and the service life of the automobile exhaust purification treatment device 10.

[0036] In addition, the outermost sub-cavity 300 among the multiple sub-cavities 300 is connected to the exhaust port 120, so that at least a portion of the automobile exhaust can be effectively purified step by step and multiple times by the multiple purifiers 200, which is beneficial to improving the purification effect of the automobile exhaust purification treatment device 10.

[0037] A catalyst is attached to the hole wall of each purification through hole 210 of the purifier 200. The catalyst can cause harmful chemical components in automobile exhaust to undergo oxidation-reduction reactions with each other, and finally generate harmless gas, thereby achieving the purpose of purifying the exhaust.

[0038] There are multiple purifiers 200, and there are multiple sub-cavities 300 enclosed by the multiple purifiers 200 and the inner surface of the shell 100. In this way, even if a part of the purifiers 200 is damaged, the exhaust gas can still be purified by the remaining purifiers 200. While ensuring the purification effect of the automobile exhaust gas purification treatment device 10, the replacement frequency of the automobile exhaust gas purification treatment device 10 can be reduced, and the service life of the automobile exhaust gas purification treatment device 10 can be further extended, which is beneficial to improving the performance of the product.

[0039] The multiple purifiers 200 are arranged at intervals along the first direction. Compared with the arrangement position of the purification module in the related art, this arrangement reduces the amount of purifiers 200 used, and can reduce the production cost of the automobile exhaust purification treatment device 10 while ensuring the purification effect.

[0040] Specifically, according to specific actual use requirements, the automobile exhaust gas can enter the housing 100 through at least a portion of the multiple air inlets 110. That is, a portion of the air inlets 110 can be opened. The air inlets 110 at the corresponding positions can also be opened. They are not listed here one by one.

[0041] Specifically, the frequency and time of opening the air inlet 110 and the air outlet 120 can be controlled according to specific actual use requirements.

[0042] In some embodiments, Figure 1 , Figure 2 and Figure 3 As shown, the number of exhaust ports 120 is at least one; when the number of exhaust ports 120 is multiple, along the first direction, in the two outermost sub-cavities 300, one sub-cavity 300 is connected to at least one exhaust port 120, and the other sub-cavity 300 is connected to at least one exhaust port 120.

[0043] In this embodiment, the number of the exhaust openings is further defined. Specifically, the number of the exhaust opening 120 is at least one. That is, the number of the exhaust opening 120 is one, or the number of the exhaust opening 120 is multiple.

[0044] When there are multiple exhaust ports 120, along the first direction, of the two outermost sub-cavities 300, one sub-cavity 300 is connected to at least one exhaust port 120, and the other sub-cavity 300 is connected to at least one exhaust port 120. In other words, both of the two outermost sub-cavities 300 are connected to the exhaust ports 120. In this way, the discharge positions of the purified exhaust gas are balanced, and while ensuring the purification effect of the automobile exhaust purification treatment device 10, the reaction time of the automobile exhaust gas and the purifier 200 can be balanced, which is conducive to extending the service life of the multiple purifiers 200.

[0045] In some embodiments, the purifier 200 is movably connected to the housing 100 , and the purifier 200 can move relative to the housing 100 .

[0046] In this embodiment, the matching structure between the purifier 200 and the housing 100 is further defined.

[0047] The purifier 200 is movably connected to the housing 100, and the purifier 200 can move relative to the housing 100. In this way, after the automobile exhaust enters the housing 100 through the air inlet 110, the purifier 200 can move relative to the housing 100 under the impact of the airflow, so as to adaptively adjust the position of the purifier 200 according to the flow direction and impact force of the airflow, so that the purification through hole 210 of the purifier 200 can match the flow direction of the airflow, play a buffering role, and have a pressure relief effect.

[0048] In some embodiments, Figure 3 , Figure 5 , Figure 6 , Figure 8 and Fig. 9 As shown, the purifier 200 includes: a mounting shell 220, the mounting shell 220 is a cylindrical structure; two blade groups 230, the two blade groups 230 are connected to the inner peripheral wall of the mounting shell 220, the blade group 230 includes a plurality of blades 232, the plurality of blades 232 are arranged at intervals around the axis 229 of the mounting shell, each blade 232 has a first end 2322 and a second end 2324 arranged opposite to each other, the first end 2322 is connected to the inner peripheral wall of the mounting shell 220, and the second end 2324 is arranged at intervals from the axis 229 of the mounting shell; a purification module 240 , connected to the inner circumferential wall of the mounting shell 220, along the first direction, the purification module 240 is located between the two blade groups 230, the purification module 240 is provided with a plurality of purification through holes 210, each blade 232 also has a third end 2326 and a fourth end 2328 arranged opposite to each other, the third end 2326 is adjacent to the end of the mounting shell 220, and the fourth end 2328 is adjacent to the purification module 240; wherein the blade group 230 is used to drive the mounting shell 220 and the purification module 240 to rotate relative to the shell 100 around the axis 229 of the mounting shell under the action of the airflow.

[0049] In this embodiment, the structure of the purifier 200 is further defined.

[0050] The purifier 200 includes a mounting shell 220, two blade groups 230 and a purification module 240, wherein the two blade groups 230 and the purification module 240 are both connected to the inner peripheral wall of the mounting shell 220, that is, the mounting shell 220 has the function of mounting the two blade groups 230 and the purification module 240. The matching dimensions of the two blade groups 230 and the purification module 240 can be ensured. Specifically, the purification module 240 is located between the two blade groups 230.

[0051] The purification module 240 is provided with a plurality of purification through holes 210 .

[0052] Each blade group 230 includes a plurality of blades 232 , and the plurality of blades 232 are arranged at intervals around the axis 229 of the mounting shell. Two adjacent blades 232 and the inner peripheral wall of the mounting shell 220 enclose a flow channel.

[0053] Each blade 232 has a first end 2322, a second end 2324, a third end 2326 and a fourth end 2328. The first end 2322 and the second end 2324 are arranged oppositely and spaced apart, and the third end 2326 and the fourth end 2328 are arranged oppositely and spaced apart. The first end 2322 is connected to the inner peripheral wall of the mounting shell 220, the second end 2324 is spaced apart from the axis 229 of the mounting shell, the third end 2326 is adjacent to the end of the mounting shell 220, and the fourth end 2328 is adjacent to the purification module 240. That is, the blade 232 will not extend to the axis 229 of the mounting shell, a part of the purification module 240 can be exposed through the blade group 230, the purification module 240 will not be completely blocked by the blade group 230, and the automobile exhaust can effectively flow to the multiple purification through holes 210.

[0054] In addition, by limiting the setting position of the blades 232, and limiting the matching structure of the blades 232, the mounting shell 220 and the purification module 240, after the automobile exhaust enters the housing 100 through the air inlet 110, the blade group 230 can rotate around the axis 229 of the mounting shell under the action of the airflow, and then can drive the mounting shell 220 connected to the blade group 230 and the purification module 240 connected to the mounting shell 220 to rotate relative to the housing 100 around the axis 229 of the mounting shell. In other words, each purifier 200 purifies the exhaust while rotating, and while ensuring the purification effect, it can meet the use requirements of buffering airflow and pressure relief, which is conducive to extending the service life of the automobile exhaust purification treatment device 10.

[0055] In some embodiments, the purification module 240 is movably connected to the inner peripheral wall of the installation shell 220 , and the purification module 240 can move relative to the installation shell 220 .

[0056] In this embodiment, the matching structure between the purification module 240 and the mounting shell 220 is further defined.

[0057] The purification module 240 is movably connected to the inner peripheral wall of the mounting shell 220, and the purification module 240 can move relative to the mounting shell 220. When the speed of the automobile engine is too high, the flow rate of the automobile exhaust is also relatively high. At this time, the purification module 240 moves relative to the mounting shell 220 under the action of the airflow, and the matching clearance between the purification module 240 and the inner peripheral wall of the mounting shell 220 also changes accordingly. When the automobile exhaust flows through the purifier 200, it can buffer the airflow and have a pressure relief effect.

[0058] In some embodiments, Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the inner circumferential wall of the mounting shell 220 is provided with two first grooves 222, the axis 229 of the mounting shell is located between the two first grooves 222, the first groove 222 is located between the two blade groups 230, and along the circumferential direction of the mounting shell 220, a limiting groove 226 is provided in the middle of the part of the mounting shell 220 located between the two first grooves 222; the groove walls of the first groove 222 in the circumferential direction of the mounting shell 220 are respectively recorded as the first groove wall 2222 and the second groove wall 2224, the first groove wall 2222 and the second groove wall 2224 are each provided with two slide grooves 224, the two slide grooves 224 are arranged at intervals along the axial direction of the mounting shell 220, the slide groove 224 has a first slide groove end 2242 and a second slide groove end 2244, the first slide groove ends 2242 of the two slide grooves 224 are adjacent to each other, the second slide groove ends 2244 of the two slide grooves 224 are far away from each other, and the second slide groove end 2244 is closer to the blade than the first slide groove end 2242 Group 230, the distance between the first slide groove end 2242 and the axis 229 of the mounting shell is greater than the distance between the second slide groove end 2244 and the axis 229 of the mounting shell; the purification module 240 is provided with two connection groups 242 and two bosses 244, each connection group 242 cooperates with a first groove 222, the connection group 242 includes two connecting plates 2422, the two connecting plates 2422 are arranged at intervals along the axial direction of the mounting shell 220, and along the circumference of the mounting shell 220, sliders 2424 are provided on the opposite sides of each connecting plate 2422, the sliders 2424 are slidably connected to the slide groove 224, and each boss 244 is rotatably connected to a limit groove 226; the automobile exhaust purification treatment device 10 also includes a plurality of first elastic members 400, a first elastic member 400 is connected between the side of the connecting plate 2422 facing the blade group 230 and the groove wall of the first groove 222, and the first elastic member 400 is used to reset the purification module 240.

[0059] In this embodiment, the matching structure of the mounting shell 220 and the purification module 240 is further defined.

[0060] Two first grooves 222 are formed on the inner peripheral wall of the mounting shell 220 . The axis 229 of the mounting shell is located between the two first grooves 222 . The first groove 222 is located between the two blade assemblies 230 .

[0061] The groove wall of the first groove 222 includes a first groove wall 2222 and a second groove wall 2224, which are arranged opposite to each other in the circumferential direction of the mounting shell 220. The first groove wall 2222 is provided with two slide grooves 224, and the second groove wall 2224 is provided with two slide grooves 224.

[0062] The two slide grooves 224 are arranged at intervals along the axial direction of the mounting shell 220, and the slide grooves 224 have a first slide groove end 2242 and a second slide groove end 2244. The first slide groove ends 2242 of the two slide grooves 224 are adjacent to each other, and the second slide groove ends 2244 of the two slide grooves 224 are far away from each other. The second slide groove end 2244 is closer to the blade assembly 230 than the first slide groove end 2242, and the distance from the first slide groove end 2242 to the axis 229 of the mounting shell is greater than the distance from the second slide groove end 2244 to the axis 229 of the mounting shell. That is, the extension direction of the two slide grooves 224 is defined.

[0063] The purification module 240 is provided with two connection groups 242, each of which is matched with a first groove 222. Specifically, the connection group 242 includes two connection plates 2422, which are arranged at intervals along the axial direction of the installation shell 220, and along the circumference of the installation shell 220, sliders 2424 are provided on opposite sides of each connection plate 2422, and the sliders 2424 are slidably connected with the slide groove 224. That is, the matching structure of the connection group 242 of the purification module 240 and the first groove 222 is defined.

[0064] A limiting groove 226 is provided in the middle of the portion of the mounting shell 220 between the two first grooves 222 , and the purification module 240 is further provided with two protruding columns 244 , each of which is rotatably connected to a limiting groove 226 .

[0065] That is to say, through the matching structure of the two first grooves 222, the two connection groups 242, the two limit grooves 226 and the two protrusions 244, the movement trajectory of the purification module 240 relative to the mounting shell 220 under the action of the airflow is limited, which can meet the use requirements of the active connection between the purification module 240 and the inner wall of the mounting shell 220.

[0066] The automobile exhaust purification treatment device 10 further includes a plurality of first elastic members 400, a first elastic member 400 is connected between the side of the connecting plate 2422 facing the blade assembly 230 and the groove wall of the first groove 222, and the first elastic member 400 is used to reset the purification module 240. Specifically, after the external force acting on the purification module 240 is removed, the purification module 240 can be reset under the action of the plurality of first elastic members 400 to ensure the matching position of the purification module 240 and the mounting shell 220.

[0067] Optionally, the first elastic member 400 includes a spring.

[0068] In some embodiments, Fig. 9 As shown, a chamfer 246 is provided at the connection between the axial end face of the purification module 240 and the outer peripheral wall of the purification module 240; when the purification module 240 deflects relative to the mounting shell 220, the inner peripheral wall of the mounting shell 220 and the chamfer 246 are misaligned and a gap is formed.

[0069] In this embodiment, the matching structure of the purification module 240 and the mounting shell 220 is further defined.

[0070] The connection between the axial end face of the purification module 240 and the outer peripheral wall of the purification module 240 is provided with a rounded corner 246. That is, the connection between the axial end face of the purification module 240 and the outer peripheral wall of the purification module 240 is an arc transition. Since the purification module 240 has a certain thickness in the axial direction of the mounting shell 220. If the connection between the axial end face of the purification module and the outer peripheral wall of the purification module is not rounded, interference is likely to occur when the purification module moves relative to the mounting shell.

[0071] In addition, when the purification module 240 is deflected relative to the mounting shell 220, the inner circumferential wall of the mounting shell 220 and the chamfered corner 246 are misaligned and a gap is formed. The gap will not be very large. In this way, the gap between the inner circumferential wall of the mounting shell 220 and the chamfered corner 246 can have a pressure relief effect, thereby ensuring the purification effect of the automobile exhaust purification treatment device 10.

[0072] Among them, the number of purifiers 200 is multiple. The thrust of the airflow on the purification module 240 of the purifier 200 that is closer to the air inlet 110 is greater, and the thrust of the airflow on the purification module 240 of the purifier 200 that is farther from the air inlet 110 is smaller. Therefore, the purification module 240 of the purifier 200 that is closer to the air inlet 110 can be deflected relative to the mounting shell 220 under the action of the airflow to form a gap. The purification module 240 of the purifier 200 that is farther from the air inlet 110 will not deflect relative to the mounting shell 220 to form a gap. That is, the situation where the purification modules 240 of all purifiers 200 deflect at the same time to form a gap will not occur. Therefore, the unpurified exhaust gas passing through the gap can still be purified by the next purifier 200, which can ensure the purification effect of the automobile exhaust purification treatment device 10.

[0073] In some embodiments, Figure 5 As shown, the purifier 200 further includes a connecting piece 250 , and the mounting shell 220 and the inner surface of the housing 100 are movably connected via the connecting piece 250 .

[0074] In this embodiment, the structure of the purifier 200 is further defined.

[0075] The purifier 200 further includes a connector 250, and the mounting shell 220 and the inner surface of the housing 100 are movably connected through the connector 250. That is, the mounting shell 220 is indirectly connected to the inner surface of the housing 100 through the connector 250, and the mounting shell 220 can move relative to the housing 100.

[0076] In some embodiments, Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the outer peripheral wall of the mounting shell 220 is provided with an annular groove 228, and the annular groove 228 extends along the circumference of the purification module 240; the connecting member 250 includes an annular plate 252 and a plurality of connecting blocks 254, the annular plate 252 is located in the annular groove 228, and the annular plate 252 is rotatably connected to the annular groove 228, and the plurality of connecting blocks 254 are arranged on the outer peripheral wall of the annular plate 252, and the plurality of connecting blocks 254 are arranged at intervals along the circumference of the mounting shell 220; a plurality of second grooves 130 are provided in the shell 100, and each connecting block 254 is arranged in a second groove 130; the automobile exhaust purification treatment device 10 also includes a plurality of elastic groups 500, each elastic group 500 is arranged in a second groove 130, and the elastic group 500 includes two second elastic members 510, and along the axial direction of the mounting shell 220, the connecting block 254 is located between the two second elastic members 510, and the elastic group 500 is used to reset the purifier 200.

[0077] In this embodiment, the matching structure of the engagement member 250 and the mounting shell 220 is further defined.

[0078] The outer peripheral wall of the mounting shell 220 is provided with an annular groove 228, and the annular groove 228 extends along the circumference of the purification module 240. The connecting member 250 includes an annular plate 252, and the annular plate 252 is located in the annular groove 228, and the annular plate 252 is rotatably connected to the annular groove 228. That is, after the automobile exhaust enters the housing 100 through the air inlet 110, the blade group 230 can drive the mounting shell 220 and the purification module 240 to rotate relative to the connecting member 250 around the axis 229 of the mounting shell under the action of the airflow, that is, the blade group 230 can drive the mounting shell 220 and the purification module 240 to rotate relative to the housing 100 around the axis 229 of the mounting shell under the action of the airflow.

[0079] In addition, the connector 250 also includes a plurality of connection blocks 254, which are arranged on the outer peripheral wall of the annular plate 252, and the plurality of connection blocks 254 are arranged at intervals along the circumference of the mounting shell 220. A plurality of second grooves 130 are provided in the housing 100, and each connection block 254 is provided in a second groove 130. The automobile exhaust purification treatment device 10 also includes a plurality of elastic groups 500, each elastic group 500 is provided in a second groove 130, and the elastic group 500 includes two second elastic members 510, and along the axial direction of the mounting shell 220, the connection block 254 is located between the two second elastic members 510. In other words, the connector 250 can slide relative to the housing 100 along the axial direction of the mounting shell 220. In other words, the purifier 200 can move relative to the housing 100 along the axial direction of the mounting shell 220 under the drive of the connector 250. Specifically, when the automobile exhaust purification treatment device 10 is working, the blade group 230 is used to drive the mounting shell 220 and the purification module 240 to rotate relative to the shell 100 around the axis 229 of the mounting shell under the action of the airflow. At the same time, the purifier 200 can also move as a whole along the axial direction of the mounting shell 220 under the action of the airflow with varying intensity. In this way, the axial spacing of multiple purifiers 200 in the mounting shell 220 can be adaptively adjusted, providing effective and reliable structural support to ensure the performance of the automobile exhaust purification treatment device 10 and extend the service life of the automobile exhaust purification treatment device 10.

[0080] In addition, the second elastic members 510 located on both sides of the connection block 254 can drive the purifier 200 to reset, so as to ensure the matching position of the purifier 200 and the housing 100 and to ensure the spacing between the multiple purifiers 200.

[0081] The flow rate of automobile exhaust changes, and the thrust of automobile exhaust on the purifier 200 is different. When the thrust is greater than the elastic force of the second elastic member 510, the purifier 200 can move along the axial direction of the mounting shell 220, and the distance between two adjacent purifiers 200 also changes adaptively. Optionally, the second elastic member 510 includes a spring.

[0082] In some embodiments, the automobile exhaust purification treatment device 10 further includes: a plurality of first baffles, each of which is connected to an air inlet 110, and the first baffle is used to open and close the air inlet 110; at least one second baffle, each of which is connected to an exhaust port 120, and the second baffle is used to open and close the exhaust port 120; a plurality of air inlets 110 are arranged at intervals along a first direction, and a purifier 200 is provided between any two adjacent air inlets 110.

[0083] In this embodiment, the structure of the automobile exhaust gas purification device 10 is further defined.

[0084] The automobile exhaust purification device 10 further includes a plurality of first baffles, each of which is connected to an air inlet 110 , and the first baffle is used to open and close the air inlet 110 . That is, the first baffle has the function of opening and closing the air inlet 110 .

[0085] The automobile exhaust purification device 10 further includes at least one second baffle, each of which is connected to an exhaust port 120, and the second baffle is used to open and close the exhaust port 120. That is, the second baffle has the function of opening and closing the exhaust port 120.

[0086] By controlling the opening and closing of the plurality of first baffles and the at least one second baffle, the purpose of adjusting the opening and closing frequency and opening and closing time of the plurality of air inlets 110 and the at least one air outlet 120 is achieved.

[0087] Specifically, the plurality of air inlets 110 are arranged at intervals along the first direction, and a purifier 200 is disposed between any two adjacent air inlets 110. That is, the positional relationship between the plurality of air inlets 110 and the plurality of purifiers 200 is defined.

[0088] Optionally, the automobile exhaust purification treatment device 10 includes a housing 100 and a plurality of purifiers 200. The purifier 200 includes a three-way purifier. The housing 100 is provided with a plurality of air inlets 110, and the plurality of air inlets 110 are arranged at intervals along a first direction. The housing 100 is provided with exhaust ports 120 on both sides in the first direction. Each air inlet 110 is connected to a first baffle, and the first baffle is used to open and close the air inlet 110. Each exhaust port 120 is connected to a second baffle, and the second baffle is used to open and close the exhaust port 120.

[0089] A plurality of purifiers 200 are disposed inside the housing 100 . The plurality of purifiers 200 are arranged at intervals along a first direction, and each purifier 200 is located between two corresponding air inlets 110 .

[0090] Each purifier 200 includes a mounting shell 220, two blade groups 230 and a purification module 240. The purification module 240 can deflect relative to the mounting shell 220. Specifically, the inner circumferential wall of the mounting shell 220 is provided with two first grooves 222, and the groove walls of the first groove 222 in the circumferential direction of the mounting shell 220 are respectively recorded as the first groove wall 2222 and the second groove wall 2224, and the first groove wall 2222 and the second groove wall 2224 are both provided with two slide grooves 224, and the middle part of the portion of the mounting shell 220 located between the two first grooves 222 is provided with a limiting groove 226. The purification module 240 is provided with two connection groups 242 and two bosses 244. Each connection group 242 cooperates with a first groove 222, and the connection group 242 includes two connection plates 2422, which are arranged at intervals along the axial direction of the mounting shell 220. Along the circumference of the mounting shell 220, sliders 2424 are provided on opposite sides of each connection plate 2422, and the sliders 2424 are slidably connected with the slide groove 224, and each boss 244 is rotatably connected with a limit groove 226. A first elastic member 400 is connected between the side of the connection plate 2422 facing the blade group 230 and the groove wall of the first groove 222. The movement trajectory of the purification module 240 relative to the mounting shell 220 under the action of the airflow is limited by the matching structure of the two first grooves 222, the two connection groups 242, the two limit grooves 226 and the two bosses 244.

[0091] A chamfer 246 is provided at the connection between the axial end face of the purification module 240 and the outer peripheral wall of the purification module 240. Both blade groups 230 are connected to the inner peripheral wall of the mounting shell 220, and the purification module 240 is located between the two blade groups 230. When the automobile exhaust passes through the purifier 200, the blade group 230 drives the mounting shell 220 and the purification module 240 to rotate relative to the housing 100 around the axis 229 of the mounting shell.

[0092] The mounting shell 220 and the inner surface of the housing 100 are slidably connected via the connecting piece 250 , and the purification piece can slide relative to the housing 100 along the axial direction of the mounting shell 220 .

[0093] During operation, the position where the automobile exhaust enters the housing 100 is repeatedly changed by controlling the opening and closing of the air inlets 110 and the exhaust ports 120 at various locations, and the position of each purifier 200 relative to the automobile exhaust flow is also changed.

[0094] When the automobile exhaust gas passes through each purifier 200 , the blade assembly 230 drives the mounting shell 220 and the purification module 240 to rotate together, so each purifier 200 purifies the automobile exhaust gas while rotating.

[0095] At the same time, the distance between two adjacent purifiers 200 can be automatically adjusted according to the exhaust gas displacement. The automobile exhaust purification treatment device 10 of the present invention is provided with a plurality of air inlets 110, and the opened air inlets 110 are repeatedly replaced, so that the reaction time of each purifier 200 and the automobile exhaust can be balanced. The purification effect of the purifier 200 is enhanced. At the same time, due to the change of the air intake direction, the opened air inlet 110 can be replaced, and different purifiers 200 can be recoiled to avoid clogging the purifier 200.

[0096] When the automobile exhaust purification treatment device 10 is working, the blade group 230 drives the mounting shell 220 and the purification module 240 to rotate relative to the housing 100 around the axis 229 of the mounting shell under the action of the airflow. At the same time, the purifier 200 can also move relative to the housing 100 along the axial direction of the mounting shell 220. The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An automobile exhaust purification device (10), characterized in that: include: A housing (100), wherein the housing (100) is provided with a plurality of air inlets (110) and air outlets (120); A plurality of purifiers (200) are arranged in the shell (100), the plurality of purifiers (200) are arranged at intervals along a first direction, the plurality of purifiers (200) and the inner surface of the shell (100) enclose a plurality of sub-cavities (300), each of the sub-cavities (300) is connected to at least one of the air inlets (110), each of the purifiers (200) is provided with a plurality of purification through holes (210), each of the purification through holes (210) extends along the first direction, and any two adjacent sub-cavities (300) are connected via a purification through hole (210) of the purifier (200); Wherein, along the first direction, the sub-cavity (300) located at the outermost side of the plurality of sub-cavities (300) is in communication with the exhaust port (120).

2. The automobile exhaust gas purification device (10) according to claim 1, characterized in that: The number of the exhaust port (120) is at least one; When there are multiple exhaust ports (120), along the first direction, of the two outermost sub-cavities (300), one sub-cavity (300) is connected to at least one exhaust port (120), and the other sub-cavity (300) is connected to at least one exhaust port (120).

3. The automobile exhaust gas purification device (10) according to claim 1 or 2, characterized in that: The purifier (200) is movably connected to the housing (100), and the purifier (200) is capable of moving relative to the housing (100).

4. The automobile exhaust gas purification device (10) according to claim 3, characterized in that: The purifier (200) comprises: A mounting shell (220), wherein the mounting shell (220) is a cylindrical structure; Two blade groups (230), both of the blade groups (230) being connected to the inner peripheral wall of the mounting shell (220), the blade group (230) comprising a plurality of blades (232), the plurality of blades (232) being arranged at intervals around the axis (229) of the mounting shell, each of the blades (232) having a first end (2322) and a second end (2324) arranged opposite to each other, the first end (2322) being connected to the inner peripheral wall of the mounting shell (220), and the second end (2324) being arranged at intervals from the axis (229) of the mounting shell; A purification module (240) connected to the inner peripheral wall of the mounting shell (220); along the first direction, the purification module (240) is located between the two blade groups (230); the purification module (240) is provided with a plurality of purification through holes (210); each blade (232) further comprises a third end (2326) and a fourth end (2328) which are arranged opposite to each other; the third end (2326) is adjacent to the end of the mounting shell (220), and the fourth end (2328) is adjacent to the purification module (240); The blade assembly (230) is used to drive the mounting shell (220) and the purification module (240) to rotate relative to the housing (100) around the axis (229) of the mounting shell under the action of airflow.

5. The automobile exhaust gas purification device (10) according to claim 4, characterized in that: The purification module (240) is movably connected to the inner peripheral wall of the installation shell (220), and the purification module (240) is capable of moving relative to the installation shell (220).

6. The automobile exhaust gas purification device (10) according to claim 5, characterized in that: The inner peripheral wall of the mounting shell (220) is provided with two first grooves (222), the axis (229) of the mounting shell is located between the two first grooves (222), the first groove (222) is located between the two blade groups (230), and along the circumferential direction of the mounting shell (220), a limiting groove (226) is provided in the middle of the portion of the mounting shell (220) located between the two first grooves (222); The groove walls of the first groove (222) in the circumferential direction of the mounting shell (220) are respectively recorded as a first groove wall (2222) and a second groove wall (2224). The first groove wall (2222) and the second groove wall (2224) are each provided with two slide grooves (224). The two slide grooves (224) are arranged at intervals along the axial direction of the mounting shell (220). The slide grooves (224) have a first slide groove end (2242) and a second slide groove end (2244). The two The first slide groove ends (2242) of the slide grooves (224) are closely adjacent to each other, the second slide groove ends (2244) of the two slide grooves (224) are far away from each other, the second slide groove ends (2244) are closer to the blade assembly (230) than the first slide groove ends (2242), and the distance from the first slide groove end (2242) to the axis (229) of the mounting shell is greater than the distance from the second slide groove end (2244) to the axis (229) of the mounting shell; The purification module (240) is provided with two connection groups (242) and two bosses (244), each of the connection groups (242) cooperates with one of the first grooves (222), the connection group (242) comprises two connection plates (2422), the two connection plates (2422) are arranged at intervals along the axial direction of the mounting shell (220), and along the circumference of the mounting shell (220), sliders (2424) are provided on opposite sides of each of the connection plates (2422), the sliders (2424) are slidably connected to the slide grooves (224), and each of the bosses (244) is rotatably connected to one of the limit grooves (226); The automobile exhaust gas purification treatment device (10) further comprises a plurality of first elastic members (400), one of the first elastic members (400) being connected between a side of the connecting plate (2422) facing the blade assembly (230) and a groove wall of the first groove (222), and the first elastic member (400) being used to reset the purification module (240).

7. The automobile exhaust gas purification device (10) according to claim 6, characterized in that: A chamfer (246) is provided at the connection between the axial end surface of the purification module (240) and the outer peripheral wall of the purification module (240); When the purification module (240) is deflected relative to the mounting shell (220), the inner peripheral wall of the mounting shell (220) and the rounded corner (246) are misaligned and a gap is formed.

8. The automobile exhaust gas purification device (10) according to claim 4, characterized in that: The purifier (200) further includes: A connecting piece (250), wherein the mounting shell (220) and the inner surface of the housing (100) are movably connected via the connecting piece (250).

9. The automobile exhaust gas purification device (10) according to claim 8, characterized in that: An annular groove (228) is provided on the outer peripheral wall of the installation shell (220), and the annular groove (228) extends along the circumference of the purification module (240); The connecting member (250) comprises an annular plate (252) and a plurality of connecting blocks (254); the annular plate (252) is located in the annular groove (228), and the annular plate (252) is rotatably connected to the annular groove (228); the plurality of connecting blocks (254) are arranged on the outer peripheral wall of the annular plate (252), and the plurality of connecting blocks (254) are spaced apart along the circumference of the mounting shell (220); A plurality of second grooves (130) are provided in the housing (100), and each of the connecting blocks (254) is arranged in one of the second grooves (130); The automobile exhaust gas purification treatment device (10) further comprises a plurality of elastic groups (500), each of the elastic groups (500) being arranged in one of the second grooves (130), the elastic group (500) comprising two second elastic members (510), and along the axial direction of the mounting shell (220), the connecting block (254) being located between the two second elastic members (510), and the elastic group (500) being used to reset the purifier (200).

10. The automobile exhaust gas purification device (10) according to claim 2, characterized in that: Also includes: a plurality of first baffles, each of the first baffles being connected to one of the air inlets (110), the first baffle being used to open and close the air inlet (110); at least one second baffle, each of the second baffles being connected to one of the exhaust ports (120), the second baffle being used to open and close the exhaust port (120); The plurality of air inlets (110) are arranged at intervals along the first direction, and a purifier (200) is provided between any two adjacent air inlets (110).

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