Air filter assembly and vehicle

Abstract

The utility model discloses an air filter assembly and a vehicle. The air filter assembly comprises a shell, an air inlet, an air outlet, an air inlet and an air outlet, the filter element is arranged in the shell, and the filter element is respectively communicated with the air inlet and the air outlet; the centrifugal assembly is arranged in the shell and is adjacent to the air inlet, the shell is further provided with a dust collection groove, and the dust collection groove surrounds the centrifugal assembly in the circumferential direction of the centrifugal assembly; and the dust discharging pipe is arranged in the shell, the first end of the dust discharging pipe communicates with the dust collecting groove, and the second end of the dust discharging pipe communicates with the exterior of the shell. According to the air filter assembly, dust impurities in air can be centrifugally filtered through the centrifugal assembly, the dust collecting groove can better collect the filtered dust impurities, then the dust impurities can be prevented from being absorbed by the filter element, and the service life of the filter element is more effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is related to an air filter assembly and vehicle. BACKGROUND

[0002] The air filter assembly in the related art is usually connected to the air inlet pipe of the engine to filter the air entering the engine, and the air filter assembly usually filters the dust and impurities in the air through the filter element. When the vehicle runs in a harsh environment, there are more dust and impurities in the air, which can reach the dust holding capacity limit of the filter element in a short time, which may cause engine operation failure and affect vehicle operation.

[0003] In some technologies, a cyclone guide is arranged in the air filter assembly to preliminarily filter the dust in the air flowing to the engine by the centrifugal force generated by the rotation of the cyclone guide, and then the air is filtered through the filter element after being preliminarily filtered by the cyclone guide. However, due to the unreasonable internal structure of the air filter assembly, the dust filtered out by the cyclone guide is still likely to be absorbed by the filter element, the preliminary filtering effect is poor, and the service life of the filter element cannot be effectively prolonged. SUMMARY

[0004] The utility model aims at at least solves one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an air filter assembly, which can use a centrifugal assembly to centrifugally filter dust and impurities in the air, and a dust collection groove can better collect the filtered dust and impurities, thereby avoiding the dust and impurities from being absorbed by the filter element and more effectively improving the service life of the filter element.

[0005] The utility model embodiment further provides a vehicle with the above-mentioned air filter assembly.

[0006] To achieve the above-mentioned purpose, according to the first aspect embodiment of the utility model, an air filter assembly is provided, which comprises: a shell, the shell is provided with an air inlet and an air outlet; a filter element, the filter element is arranged in the shell, and the filter element is in communication with the air inlet and the air outlet respectively; a centrifugal assembly, the centrifugal assembly is arranged in the shell and adjacent to the air inlet, the shell is further provided with a dust collection groove, and the dust collection groove surrounds the centrifugal assembly along the circumferential direction of the centrifugal assembly; a dust removal pipe, the dust removal pipe is arranged in the shell, the first end of the dust removal pipe is in communication with the dust collection groove and the second end is in communication with the outside of the shell.

[0007] Therefore, the air filter assembly can centrifugally filter dust impurities in the air by the centrifugal assembly, the dust collection groove can better collect the filtered dust impurities, and the service life of the filter element can be further improved.

[0008] According to some embodiments of the present application, the shell is provided with an air guide pipe, one end of the air guide pipe is configured as the air inlet, and the inner wall of the air guide pipe is configured as the dust collection groove.

[0009] According to some embodiments of the present application, the dust collection groove extends along the circumference of the air guide pipe and is recessed outward along the radial direction of the air guide pipe.

[0010] According to some embodiments of the present application, the sidewall of the dust collection groove is provided with a dust discharge hole, and the first end of the dust discharge pipe is connected to the radial outer side of the air guide pipe and communicates with the dust discharge hole.

[0011] According to some embodiments of the present application, the centrifugal assembly comprises: a driving motor fixed in the air guide pipe; and a centrifugal fan arranged in the air guide pipe and in driving connection with the driving motor, wherein the centrifugal fan is located in the dust collection groove along the axial direction of the air guide pipe.

[0012] According to some embodiments of the present application, the centrifugal assembly further comprises: a fixed support, the driving motor is mounted on the fixed support, and the fixed support is provided with a plurality of support arms, the plurality of support arms are arranged along the circumference of the air guide pipe, and the fixed support is arranged in the air guide pipe and the plurality of support arms are respectively connected with the inner wall of the air guide pipe.

[0013] According to some embodiments of the present application, the air filter assembly further comprises: a one-way valve arranged in the dust discharge pipe, and the one-way valve only allows airflow to flow from the first end to the second end of the dust discharge pipe.

[0014] According to some embodiments of the present application, the air filter assembly further comprises: a vibrator arranged in the dust discharge pipe and adjacent to the second end of the dust discharge pipe.

[0015] According to some embodiments of the present application, the air filter assembly further comprises: a sound-absorbing plate arranged in the shell, and the sound-absorbing plate divides a first chamber and a second chamber in communication in the shell, the air inlet communicates with the first chamber, and the air outlet communicates with the second chamber, the centrifugal assembly is arranged in the first chamber, and the filter element is arranged in the second chamber.

[0016] According to the second aspect of the present application, a vehicle is provided, which comprises the air filter assembly according to the first aspect of the present application and an engine, and the air filter assembly is connected to an air inlet pipe of the engine.

[0017] According to the second aspect of the present application, a vehicle is provided, which comprises the air filter assembly according to the first aspect of the present application and an engine, and the air filter assembly is connected to an air inlet pipe of the engine.

[0018] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, in which:

[0020] Figure 1 is a structural schematic view of the air filter assembly according to the embodiment of the present application;

[0021] Figure 2 is a structural schematic view of the air filter assembly according to the embodiment of the present application from another perspective;

[0022] Figure 3 is a sectional view of A-A of Figure 2

[0023] Figure 4 is a structural schematic view of the filter element, the sound-absorbing plate and the centrifugal assembly according to the embodiment of the present application;

[0024] Figure 5 is a structural schematic view of the air guide pipe, the centrifugal assembly and the dust discharge pipe according to the embodiment of the present application;

[0025] Figure 6 is a structural schematic view of the air guide pipe, the centrifugal assembly and the dust discharge pipe according to the embodiment of the present application from another perspective;

[0026] Figure 7 is a structural schematic view of the air guide pipe, the centrifugal assembly and the dust discharge pipe according to the embodiment of the present application from still another perspective.

[0027] REFERENCE NUMERALS:

[0028] 1. air filter assembly;

[0029] ​100, housing; 110, upper housing; 111, air outlet; 112, third chamber; 120, lower housing; 121, first chamber; 122, second chamber; 130, air guide pipe; 131, dust collecting groove; 132, dust discharging hole; 133, air inlet; 140, filter element;

[0030] 200, centrifugal assembly; 210, driving motor; 220, centrifugal fan; 230, fixing support; 231, support arm; 232, through hole;

[0031] 300, dust discharging pipe; 301, first end; 302, second end; 310, one-way valve;

[0032] 400, sound absorbing plate; 410, sound absorbing hole;

[0033] 500, electronic element. DETAILED DESCRIPTION

[0034] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are for the purpose of explanation of the present application, and are not to be understood as a limitation of the present application.

[0035] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In the description of the present application, "first feature" and "second feature" can include one or more of the features.

[0037] In the description of the present application, "a plurality of" means two or more, and "several" means one or more.

[0038] A kind of air filter assembly 1 according to the embodiments of the present application is described below with reference to the drawings.

[0039] As shown in Figures 1-7 , the air filter assembly 1 according to the embodiments of the present application includes a housing 100, a filter element 140, a centrifugal assembly 200 and a dust discharging pipe 300.

[0040] The shell 100 is provided with an air inlet 133 and an air outlet 111, the filter element 140 is arranged in the shell 100 and communicates with the air inlet 133 and the air outlet 111 respectively, the centrifugal assembly 200 is arranged in the shell 100 and adjacent to the air inlet 133, the shell 100 is further provided with a dust collecting groove 131, and the dust collecting groove 131 surrounds the centrifugal assembly 200 along the circumferential direction of the centrifugal assembly 200, and the dust discharging pipe 300 is arranged in the shell 100, the first end 301 of the dust discharging pipe 300 communicates with the dust collecting groove 131, and the second end 302 communicates with the outside of the shell 100.

[0041] The shell 100 can include an upper shell 110 and a lower shell 120, and the upper shell 110 and the lower shell 120 can be connected by fasteners or welded, which facilitates the assembly of the air filter assembly 1.

[0042] The centrifugal assembly 200 can be coaxially arranged with the air inlet 133.

[0043] According to the air filter assembly 1 of the embodiment of the utility model, the filter element 140 is arranged in the shell 100 and communicates with the air inlet 133 and the air outlet 111 respectively, so that the air can flow into the shell 100 from the air inlet 133, and then be discharged through the air outlet 111 after being filtered by the filter element 140, thereby the filter element 140 can be used to filter the air flowing into the engine, so as to improve the cleanliness of the air flowing into the engine, and the engine can work normally.

[0044] In addition, by additionally arranging the centrifugal assembly 200, the centrifugal assembly 200 is arranged in the shell 100 and adjacent to the air inlet 133, so that the air flowing from the air inlet 133 can be first filtered by the centrifugal assembly 200, which is beneficial to improve the cleanliness of the air flowing to the filter element 140, that is, the centrifugal assembly 200 can preliminarily filter the air flowing into the shell 100 to separate dust and impurities from the air, thereby the content of dust and impurities in the air flowing to the filter element 140 can be reduced, and the filter load of the filter element 140 can be smaller, so that the filter element 140 can reach the upper limit of the dust holding capacity only after being used for a long time, and even if the vehicle is driven in a harsher environment, the service life of the filter element 140 can be effectively prolonged, so that the engine can operate normally.

[0045] Moreover, the centrifugal assembly 200 and the filter element 140 can double-filter and remove dust from the air flowing into the engine, greatly improving the cleanliness of the air, and the air filter assembly 1 has a better effect of filtering the air, thereby the air quality flowing into the engine can be improved.

[0046] Moreover, by arranging the dust collecting groove 131 to surround the centrifugal assembly 200 in the circumferential direction of the centrifugal assembly 200, the dust and impurities separated by the centrifugal assembly 200 can directly fall into the dust collecting groove 131, so that the dust and impurities separated by the centrifugal assembly 200 can be prevented from being blown to the filter element 140 during the process of falling into the dust collecting groove 131, in other words, the phenomenon that the dust and impurities separated by the centrifugal assembly 200 are mixed with the air again can be improved, the dust and impurities separated by the centrifugal assembly 200 cannot flow to the filter element 140 again, and the filter element 140 can be more effectively and efficiently used, and the service life of the filter element 140 can be longer.

[0047] In addition, the first end 301 of the dust discharging pipe 300 is in communication with the dust collecting groove 131, and the second end 302 is in communication with the outside of the shell 100, so that the dust accumulated in the dust collecting groove 131 can be directly discharged from the air filter assembly 1 through the dust discharging pipe 300, and the dust in the dust collecting groove 131 can be prevented from being blown to the filter element 140 again by the flowing air, and the dust in the dust collecting groove 131 can be conveniently discharged without frequently disassembling the air filter assembly 1 for cleaning.

[0048] Therefore, the air filter assembly 1 according to the embodiment of the present application can centrifugally filter the dust and impurities in the air by the centrifugal assembly 200, the dust and impurities filtered out can be better collected by the dust collecting groove 131, and the dust and impurities filtered out can be prevented from being absorbed by the filter element 140 again, so that the service life of the filter element 140 can be more effectively and efficiently improved.

[0049] In some specific embodiments of the present application, as shown in Figure 1 、 Figure 3 and Figure 5 , the shell 100 is provided with an air guide pipe 130, one end of the air guide pipe 130 is configured as an air inlet 133, the inner wall of the air guide pipe 130 is configured as a dust collecting groove 131, and the centrifugal assembly 200 is arranged in the air guide pipe 130.

[0050] By arranging the air guide pipe 130, on the one hand, the air inlet of the air filter assembly 1 can be guided, so that the air inlet is more smooth, and on the other hand, the centrifugal assembly 200 can be fixed to the inner wall of the air guide pipe 130, which is beneficial to simplify the fixing structure of the centrifugal assembly 200, and the dust and impurities filtered out by the centrifugal assembly 200 can be discharged into the dust collecting groove 131 along the radial direction of the air guide pipe 130, and then discharged from the shell 100 through the dust discharging pipe 300.

[0051] Further, as shown in Figure 5 , the dust collecting groove 131 extends in the circumferential direction of the air guide pipe 130 and is recessed outward in the radial direction of the air guide pipe 130.

[0052] In this way, along the radial direction of the air guide pipe 130, the dust collection groove 131 does not protrude inwardly from the inner wall of the air guide pipe 130, thereby avoiding the part of the air guide pipe 130 where the dust collection groove 131 is constructed from blocking the airflow, so that the air filter assembly 1 can normally intake air. Moreover, the dust collection groove 131 extends outwardly along the radial direction of the air guide pipe 130, so that the volume of the dust collection groove 131 can be set to be larger, so as to facilitate the dust collection groove 131 to collect the dust impurities filtered out by the centrifugal assembly 200.

[0053] In some specific embodiments of the present application, as shown in Figure 3 and Figure 5 The side wall of the dust collection groove 131 is provided with a dust discharge hole 132, and the first end 301 of the dust discharge pipe 300 is connected to the radial outer side of the air guide pipe 130 and communicates with the dust discharge hole 132.

[0054] Among them, along the radial direction of the air guide pipe 130, the dust discharge hole 132 can be constructed on the outer side wall of the dust collection groove 131, so that the dust can enter the dust discharge hole 132 under the action of the centrifugal force of the centrifugal assembly 200, thereby being discharged outside the shell 100 through the dust discharge pipe 300.

[0055] In addition, the dust discharge hole 132 can be provided in a plurality of ways, and the plurality of dust discharge holes 132 can be arranged in a circumferential direction of the dust collection groove 131, and the dust discharge pipe 300 can also be provided in a plurality of ways, and the plurality of dust discharge holes 132 and the plurality of dust discharge pipes 300 are connected one by one, so that the dust impurities can be discharged outside the shell 100 through the plurality of dust discharge holes 132 and the plurality of dust discharge pipes 300, thereby improving the dust discharge rate of the air filter assembly 1.

[0056] In some specific embodiments of the present application, as shown in Figure 3 The centrifugal assembly 200 includes a driving motor 210 and a centrifugal fan 220.

[0057] The driving motor 210 is fixed in the air guide pipe 130, and the centrifugal fan 220 is arranged in the air guide pipe 130 and is in driving connection with the driving motor 210.

[0058] Among them, along the axial direction of the air guide pipe 130, the centrifugal fan 220 is located in the dust collection groove 131. In other words, along the axial direction of the air guide pipe 130, the centrifugal fan 220 and the dust collection groove 131 are at the same height position, so that the centrifugal fan 220 and the dust collection groove 131 can better correspond, and the dust impurities thrown out by the centrifugal force generated by the rotation of the centrifugal fan 220 can fall into the dust collection groove 131 along the radial direction of the centrifugal fan 220, thereby further improving the dust collection effect of the dust collection groove 131, and the filtered dust impurities can be better discharged outside the shell through the dust collection groove 131 and the dust discharge pipe 300.

[0059] In addition, the centrifugal assembly 200 can be driven to operate actively by driving the centrifugal fan 220 to rotate by the driving motor 210, so that the air flowing to the filter element 140 can be actively filtered by the centrifugal assembly 200.

[0060] In addition, the air filter assembly 1 can be provided with electronic elements 500, such as a controller, and the driving motor 210 can be electrically connected with the electronic elements 500, so that the driving motor 210 can be controlled to operate by the electronic elements 500 to drive the centrifugal fan 220 to rotate, and when the working state of the engine is different, the air intake efficiency of the engine is different, at this time, the speed of the driving motor 210 can be adjusted by the electronic elements 500, so that the centrifugal assembly 200 can adjust the filtering efficiency of the air according to the air intake rate of the engine.

[0061] In some specific embodiments of the present application, as shown in Figure 1 、 Figure 2 、 Figure 6 and Figure 7 , the centrifugal assembly 200 further comprises a fixed support 230, the driving motor 210 is installed on the fixed support 230, and the fixed support 230 is provided with a plurality of support arms 231, the plurality of support arms 231 are arranged along the circumference of the air guide pipe 130, and the fixed support 230 is arranged in the air guide pipe 130 and the plurality of support arms 231 are connected with the inner wall of the air guide pipe 130 respectively.

[0062] By arranging the plurality of support arms 231 along the circumference of the air guide pipe 130, a gap can be formed between the adjacent two support arms 231, so as to avoid the fixed support 230 from blocking the air flow, so as to facilitate the air flow in the air guide pipe 130. Moreover, by connecting the plurality of support arms 231 with the inner wall of the air guide pipe 130, the connection strength between the fixed support 130 and the air guide pipe 130 can be improved, so that the driving motor 210 can be stably connected with the air guide pipe 130, that is, the centrifugal assembly 200 can be stably fixed in the air guide pipe 130, so that the centrifugal assembly 200 can stably filter the air flowing into the air inlet 133.

[0063] In addition, in order to further reduce the blocking of the fixed support 230 to the air flow in the air guide pipe 130, a through hole 232 can be arranged on the support arm 231, so that the air can not only flow through the gap between the adjacent two support arms 231, but also flow through the through hole 232, further ensuring the smooth flow of the air in the air guide pipe 130.

[0064] In some specific embodiments of the present application, as shown in Figure 3As shown, the air filter assembly 1 further comprises a one-way valve 310, which is arranged in the dust discharge pipe 300 and only allows air flow from the first end 301 to the second end 302 of the dust discharge pipe 300.

[0065] The first end 301 of the dust discharge pipe 300 is communicated with the dust collection groove 131, and the second end 302 of the dust discharge pipe 300 is communicated with the outside of the shell 100. That is, the one-way valve 310 only allows air flow from the inside of the shell 100 to the outside.

[0066] Therefore, the dust and impurities in the dust collection groove 131 can be discharged out of the shell 100 through the dust discharge hole 132, the dust discharge pipe 300 and the one-way valve 310, and the air outside the shell 100 cannot flow reversely into the shell 100 through the dust discharge pipe 300, so that the dust discharge of the dust discharge pipe 300 is not affected by the negative pressure of the air filter assembly 1, the dust and impurities in the dust collection groove 131 can be discharged out of the shell 100 through the dust discharge pipe 300, and the dust and impurities outside the shell 100 cannot flow reversely into the shell 100 through the dust discharge pipe 300, so that the structure is more reasonable and the dust discharge effect is better.

[0067] In some embodiments of the present application, the air filter assembly 1 further comprises a vibrator (not shown in the figure), which is arranged in the dust discharge pipe 300 and adjacent to the second end 302 of the dust discharge pipe 300.

[0068] The vibrator can also be electrically connected with the electronic element 500, so that the vibrator can be controlled to work or stop working through the electronic element 500.

[0069] By arranging the vibrator at the position of the second end 302 of the dust discharge pipe 300, the vibrator can drive the dust discharge pipe 300 to vibrate, so that the dust discharge efficiency of the dust discharge pipe 300 can be improved, and the dust and impurities can be prevented from blocking the dust discharge pipe 300, so that the dust and impurities can be smoothly discharged out of the shell 100 along the dust discharge pipe 300.

[0070] In addition, it should be noted that the vibrator has a small size, and the vibrator can be directly arranged in the dust discharge pipe 300 and will not block the dust discharge pipe 300. Of course, the vibrator can also be arranged outside the dust discharge pipe 300.

[0071] In some embodiments of the present application, as shown in Figure 3 and Figure 4As shown, the air filter assembly 1 further comprises a soundproofing plate 400, the soundproofing plate 400 is arranged in the housing 100, and the soundproofing plate 400 divides the first cavity 121 and the second cavity 122 in the housing 100, the air inlet 133 is communicated with the first cavity 121, and the air outlet 111 is communicated with the second cavity 122, the centrifugal assembly 200 is arranged in the first cavity 121, and the filter element 140 is arranged in the second cavity 122.

[0072] By dividing the first cavity 121 and the second cavity 122 in the housing 100 through the soundproofing plate 400, the centrifugal assembly 200 is arranged in the first cavity 121, and the filter element 140 is arranged in the second cavity 122, so that the centrifugal assembly 200 and the filter element 140 can be arranged in the cavity, and the air entering the housing 100 through the air inlet 133 can first flow to the centrifugal assembly 200 and be filtered by the centrifugal assembly 200, and then the air filtered by the centrifugal assembly 200 flows into the second cavity 122 and is filtered by the filter element 140. Therefore, the dust and impurities filtered by the centrifugal assembly 200 can be further interfered with the filter element 140, that is, the dust and impurities filtered by the centrifugal assembly 200 can be more effectively prevented from being further filtered by the filter element 140, thereby reducing the filtering load of the filter element 140, which is beneficial to prolong the service life of the filter element 140.

[0073] In addition, a plurality of soundproofing holes 410 can be arranged on the soundproofing plate 400, the soundproofing holes 410 can be circular, rectangular or other shapes, and the specific shape and number of the soundproofing holes 410 can be matched according to actual conditions, for example, can be matched according to the parameters of the engine to more effectively reduce the intake noise.

[0074] Specifically, the air entering the first cavity 121 from the air inlet 133 can flow into the second cavity 122 through the soundproofing holes 410, and the intake noise can be consumed in the first cavity 121, that is, the soundproofing plate 400 can be used to reduce the noise of air flow, and the user experience is better.

[0075] In addition, it should be noted that the third cavity 112 can be defined between the filter element 140 and the upper housing 110, and the air outlet 111 is communicated with the third cavity 112, so that the air filtered by the filter element 140 can be collected in the third cavity 112, and then discharged to the engine through the air outlet 111.

[0076] The vehicle according to the embodiments of the present application is described below with reference to the drawings, which comprises the air filter assembly 1 and the engine according to the above embodiments of the present application, and the air filter assembly 1 is connected to the air inlet pipe of the engine.

[0077] According to the vehicle of the embodiment of the utility model, through utilizing the air filter assembly 1 according to the above embodiment of the utility model, the air filter assembly 1 can utilize the centrifugal assembly 200 to carry out centrifugal filtration to the dust impurities in air, and the dust collecting groove 131 can better collect the filtered dust impurities, thereby can avoid the dust impurities being absorbed by the filter element 140 again, more effectively improve the service life of the filter element 140.

[0078] The air filter assembly 1 and other configurations and operations of the vehicle according to the embodiment of the utility model are known to those skilled in the art, and will not be described in detail here.

[0079] In the description of the present specification, the description referring to the terms "embodiment", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0080] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. An air filter assembly (1) characterized by, The utility model relates to a dust collector, comprising: a housing (100) provided with an air inlet (133) and an air outlet (111); a filter element (140) arranged in the housing (100) and in communication with the air inlet (133) and the air outlet (111), respectively; a centrifugal assembly (200) arranged in the housing (100) and adjacent to the air inlet (133), the housing (100) further being provided with a dust collection groove (131) which surrounds the centrifugal assembly (200) in the circumferential direction of the centrifugal assembly (200); a dust discharge pipe (300) arranged in the housing (100), a first end (301) of the dust discharge pipe (300) being in communication with the dust collection groove (131) and a second end (302) of the dust discharge pipe (300) being in communication with the outside of the housing (100).

2. The air filter assembly (1) of claim 1, characterized in that The housing (100) is provided with an air guide pipe (130), one end of the air guide pipe (130) constituting the air inlet (133), and an inner wall of the air guide pipe (130) constituting the dust collection groove (131), the centrifugal assembly (200) being arranged in the air guide pipe (130).

3. The air filter assembly (1) of claim 2, characterized in that The dust collection groove (131) extends in the circumferential direction of the air guide pipe (130) and is recessed outward in the radial direction of the air guide pipe (130).

4. The air filter assembly (1) of claim 2, characterized in that, A side wall of the dust collection groove (131) is provided with a dust discharge hole (132), the first end (301) of the dust discharge pipe (300) being connected to the radially outer side of the air guide pipe (130) and in communication with the dust discharge hole (132).

5. The air filter assembly (1) of claim 2, wherein, The centrifugal assembly (200) comprises: a driving motor (210) fixed in the air guide pipe (130); a centrifugal fan (220) arranged in the air guide pipe (130) and in driving connection with the driving motor (210); wherein, in the axial direction of the air guide pipe (130), the centrifugal fan (220) is located in the dust collection groove (131).

6. The air filter assembly (1) of claim 5, characterized in that The centrifugal assembly (200) further comprises: a fixed support (230), the driving motor (210) being mounted on the fixed support (230), the fixed support (230) being provided with a plurality of support arms (231), the plurality of support arms (231) being arranged in the circumferential direction of the air guide pipe (130), the fixed support (230) being arranged in the air guide pipe (130) and the plurality of support arms (231) being connected to the inner wall of the air guide pipe (130), respectively.

7. The air filter assembly (1) of claim 1, wherein, Further comprising: a one-way valve (310) arranged in the dust discharge pipe (300), the one-way valve (310) allowing airflow only from the first end (301) to the second end (302) of the dust discharge pipe (300).

8. The air filter assembly (1) of claim 1, characterized in that, Further comprising: a vibrator arranged in the dust discharge pipe (300) and adjacent to the second end (302) of the dust discharge pipe (300).

9. The air filter assembly (1) of claim 1, characterized in that, Further comprising: A soundproofing plate (400) is arranged in the housing (100), and the soundproofing plate (400) divides a first cavity (121) and a second cavity (122) in communication in the housing (100), the air inlet (133) is communicated with the first cavity (121), and the air outlet (111) is communicated with the second cavity (122), the centrifugal assembly (200) is arranged in the first cavity (121), and the filter element (140) is arranged in the second cavity (122).

10. A vehicle characterized by comprising: Comprising: The air filter assembly (1) according to any one of claims 1-9; An engine, and the air filter assembly (1) is connected to an air inlet pipe of the engine.

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