Air filter and vehicle

Abstract

The utility model provides an air filter and a vehicle, the air filter comprises a filter shell, a filter element flow guide cover and a filter element, an airflow channel is arranged in the filter shell, the filter element flow guide cover is rotatably arranged in the airflow channel, the rotation center of the filter element flow guide cover extends along the axial center of the airflow channel, and the filter element flow guide cover is arranged in the airflow channel. The rotating center is eccentrically arranged relative to the axial center, and the filter element is arranged on the filter element flow guide cover. According to the air filter, the filter element flow guide cover is rotatably arranged in the airflow channel, and the rotation center is eccentrically arranged relative to the axial center of the airflow channel, so that the filter element flow guide cover can drive the filter element to rotate under the action of airflow flowing through the airflow channel, and the increase of air inlet pressure can be realized; the self-cleaning effect of the filter element can be achieved, the replacement time of the filter element can be prolonged, and the air inflow of an engine can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle air intake devices, and particularly relates to an air filter. At the same time, the utility model also relates to a vehicle applying the air filter. Background Art

[0002] The air filter is an important component of the vehicle air intake system. Its main function is to filter dust and impurities in the air, provide clean air for the engine, and thus reduce the impact on the engine performance and the wear and even damage of its hardware.

[0003] In the current traditional air filter, impurities and dust in the air are mainly adsorbed on the surface of the filter element. Due to the blocking effect of the impurities, the air intake volume of the engine is affected, and then the entire filter element assembly needs to be replaced frequently, increasing the cost.

[0004] In the current design, in order to remove dust and impurities on the filter element, most of them adopt an electronic signal control type or a flap structure type, resulting in a complex structure and easy damage of the air filter, high production cost, poor reusability, and difficulty in engineering. Summary of the Utility Model

[0005] In view of this, the utility model aims to propose an air filter with a simple structure and which is conducive to removing impurities and dust on the filter element.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] An air filter includes a filter housing, a filter element guide cover, and a filter element;

[0008] An air flow channel is provided in the filter housing;

[0009] The filter element guide cover is rotatably arranged in the air flow channel. The rotation center of the filter element guide cover extends along the axial center of the air flow channel, and the rotation center is eccentrically arranged relative to the axial center;

[0010] The filter element is arranged on the filter element guide cover.

[0011] Further, the filter housing includes a housing main body and end covers at at least one end of the housing main body;

[0012] The housing main body is detachably connected to the end covers. The air flow channel is formed inside the housing main body, and the end covers block the ends of the air flow channel.

[0013] Further, the housing main body is cylindrical, and a dust collection box is provided at the lower part of the housing main body;

[0014] The dust collection cavity in the dust collection box communicates with the air flow channel through a communication port, and the communication port is a long strip extending along the axial center of the air flow channel.

[0015] Furthermore, an opening communicating with the dust collection cavity is provided on the dust collection box, and a sealing cover capable of opening and closing the opening is provided. A third sealing portion for sealing the gap between the sealing cover and the dust collection box is provided between the sealing cover and the dust collection box;

[0016] The opening is arranged downward, and / or the sealing cover is detachably connected to the dust collection box.

[0017] Furthermore, end covers are provided at both ends of the housing main body. The end covers at both ends are connected by a connecting member, and the housing main body is clamped between the end covers at both ends.

[0018] Furthermore, an air intake channel is provided on the housing main body. The air intake channel is arc-shaped. The outlet of the air intake channel is tangent to and communicates with the outer periphery of the air flow channel. The inlet of the air intake channel is arranged away from the housing main body; the tangent line passing through the connection part of the air intake channel and the air flow channel is arranged skew to the axial center;

[0019] An air outlet channel communicating with the air flow channel is provided on at least one of the end covers.

[0020] Furthermore, the filter element guide cover includes a guide cover main body having a plurality of guide vanes, and guide cover mounting parts provided at both ends of the guide cover main body;

[0021] The guide cover mounting parts at both ends are respectively mounted on the corresponding end covers. At least one of the guide cover mounting parts is detachably connected to the guide cover main body, and a first sealing portion for sealing the gap between them is provided at the connection part.

[0022] Furthermore, air outlet channels are provided on both end covers. Each guide cover mounting part has an insertion part inserted into the air outlet channel, and a second sealing portion for sealing the gap between the insertion part and the side wall of the air outlet channel is provided between the insertion part and the side wall of the air outlet channel.

[0023] Furthermore, each guide cover mounting part has an extension part extending into the air flow channel. Both ends of the filter element are respectively sleeved on the extension parts at the corresponding ends.

[0024] Compared with the prior art, the present utility model has the following advantages:

[0025] The air filter of the present utility model has a filter element deflector rotatably disposed in the air flow channel, with the rotation center eccentrically arranged relative to the axial center of the air flow channel. It has a simple structure. Under the action of the air flow passing through the air flow channel, the filter element deflector can drive the filter element to rotate, which can increase the intake pressure, achieve the effect of self-cleaning of the filter element, extend the filter element replacement time, reduce the use cost, and facilitate increasing the engine air intake volume.

[0026] In addition, the filter housing includes a detachably connected housing main body and an end cover, which is convenient for replacing the filter element. A dust collection box is provided at the lower part of the housing main body, and the communication port is defined as a long strip extending along the axial center of the air flow channel, which is convenient for collecting the dust falling from the filter element. The dust collection cavity in the dust collection box can also function as a sound absorption cavity, forming a structure similar to the existing Helmholtz muffler, which is beneficial to reducing the intake noise of the air filter and saving space at the same time.

[0027] Furthermore, a detachable sealing cover is provided to open and close the opening. The sealing cover is convenient to install and disassemble, which is beneficial to removing the dust and impurities accumulated in the dust collection cavity. The opening is arranged downward, which can improve the convenience of removing the dust and impurities in the dust collection cavity.

[0028] As for end covers are provided at both ends of the housing, and the end covers at both ends are connected to clamp the housing main body, which is convenient for installation and disassembly and can improve the convenience of replacing the filter element. An arc-shaped intake channel is provided, and the tangent of the connection part between the intake channel and the air flow channel and the axial center are arranged in different planes, so that the air flow entering the air flow channel can form a vortex shape, which can conveniently increase the intake pressure and intake speed, and thus is beneficial to further improving the self-dust removal effect of the filter element. An air outlet channel is provided on at least one of the end covers, which is convenient for overall layout.

[0029] Moreover, the filter element deflector includes a deflector main body and a deflector installation part. At least one of the deflector installation parts is detachably connected to the deflector main body, which is convenient for installing the filter element deflector on the filter housing and for installing and disassembling the filter element. A first sealing part is provided at the connection part between the deflector installation part and the deflector main body, which is beneficial to improving the intake performance.

[0030] Two air outlet channels are provided, which can supply air for the two air outlet channels, which is beneficial to improving the air supply efficiency. At the same time, the two air outlet channels provided can also be inserted with the deflector installation part, which can improve the convenience of installing and disassembling the filter element deflector. The second sealing part provided is beneficial to ensuring the intake effect of the air filter. An extension part is provided on the deflector installation part, and the two ends of the filter element are respectively sleeved on the extension parts at the corresponding ends, which is convenient for installing and disassembling the filter element and can improve the stability of filter element installation.

[0031] Another object of the present utility model is to propose a vehicle, in which the engine intake system of the vehicle is provided with the air filter as described above.

[0032] For the vehicle described in the present utility model, by applying the air filter of Embodiment 1, the increase of the intake pressure can be achieved, and the effect of self-cleaning of the filter element can be realized, the filter element replacement time can be prolonged, the use cost can be reduced, and it is beneficial to increase the intake air volume of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0034] Figure 1 is a schematic structural diagram of the air filter according to Embodiment 1 of the present utility model;

[0035] Figure 2 is an exploded view of the air filter according to Embodiment 1 of the present utility model;

[0036] Figure 3 is Figure 1 a schematic structural diagram from another perspective;

[0037] Figure 4 is along Figure 3 a cross-sectional view taken along line A-A in

[0038] Figure 5 is along Figure 3 a cross-sectional view taken along line B-B in

[0039] DESCRIPTION OF THE REFERENCE NUMERALS:

[0040] 1. Filter housing; 2. Filter element guide cover; 3. Filter element; 4. First sealing part; 5. Second sealing part; 6. Connector; 7. Third sealing part;

[0041] 101. Housing main body; 102. End cover; 103. Dust collection box; 104. Sealing cover;

[0042] 1011. Air flow channel; 1012. Intake channel; 1021. Exhaust channel; 1031. Dust collection cavity; 1032. Communication port; 1033. Opening;

[0043] 201. Guide cover main body; 202. Guide cover installation part;

[0044] 2011. Guide vane; 2021. Insertion part; 2022. Extension part;

[0045] a. Rotation center; b. Axial center; c. Tangent line. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0047] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "back", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0048] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0049] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0050] Embodiment 1

[0051] This embodiment relates to an air filter, mainly innovating its structure. It changes the traditional filter element that only plays a filtering role. Through a simple structure, it innovatively realizes the effects of self-cleaning of the filter element and self-pressurization of the air filter, provides a new idea for the design of the air filter, can extend the filter element replacement time, reduce the use cost, and is beneficial to increasing the engine intake air volume.

[0052] Based on the above design concept, an exemplary structure of the air filter in this embodiment is as Figure 1 and Figure 2 shown. In the overall structure, the air filter in this embodiment mainly includes a filter housing 1, and a filter element guide cover 2 and a filter element 3 disposed inside the filter housing 1.

[0053] Specifically, as shown in Figure 3 and Figure 4 shown, an air flow channel 1011 is provided inside the filter housing 1. The filter element guide cover 2 is rotatably disposed inside the air flow channel 1011. The rotation center a of the filter element guide cover 2 extends along the axial center b of the air flow channel 1011, and the rotation center a is eccentrically disposed relative to the axial center b. The filter element 3 is disposed on the filter element guide cover 2.

[0054] The existing air filter can only serve as a carrier for the filter element 3 and cannot increase the intake air pressure by itself. In this embodiment, by eccentrically setting the rotation center a of the filter element guide cover 2 and enabling the filter element guide cover 2 to rotate, it is beneficial to increase the intake air pressure and can achieve a self-dust removal effect.

[0055] For the convenience of installing and disassembling the filter element 3, as shown in Figure 2 and Figure 5 , as a preferred embodiment, the filter housing 1 includes a housing main body 101 and end caps 102 at at least one end of the housing main body 101. The housing main body 101 and the end caps 102 are detachably connected. An air flow channel 1011 as described above is formed inside the housing main body 101, and the end caps 102 block the ends of the air flow channel 1011. Here, making the filter housing 1 include the detachably connected housing main body 101 and end caps 102 facilitates the replacement of the filter element 3.

[0056] Still referring to Figure 2 and Figure 5 , as a preferred embodiment, the housing main body 101 is cylindrical, which is convenient for installing the cylindrical filter element 3 in the air flow channel 1011. The axial direction of the filter element 3 is consistent with the axial center b of the air flow channel 1011 to facilitate the overall layout.

[0057] For the convenience of collecting dust and impurities, as shown in Figure 3 and Figure 4 , a dust collection box 103 is provided at the lower part of the housing main body 101. The dust collection cavity 1031 in the dust collection box 103 is communicated with the air flow channel 1011 through a communication port 1032, and the communication port 1032 is in the shape of a long strip extending along the axial center b of the air flow channel 1011.

[0058] In the above structure, setting the dust collection box 103 at the lower part of the housing main body 101 and defining the communication port 1032 to be in the shape of a long strip extending along the axial center b of the air flow channel 1011 can both facilitate the collection of the dust falling from the filter element 3. The dust collection cavity 1031 in the dust collection box 103 can also serve as a sound absorption cavity, which is beneficial to reducing the intake air noise of the air filter.

[0059] In addition, in this embodiment, the communication area of the communication port 1032 and the volume of the dust collection cavity 1031 can both be adjusted according to actual needs to better balance the collection effect of dust and impurities and the sound absorption effect of the air filter.

[0060] In order to facilitate regular cleaning of dust and impurities accumulated in the dust box 103, as a preferred embodiment, the dust box 103 is provided with an opening 1033 connected to the dust collecting chamber 1031, and a sealing cover 104 capable of opening and closing the opening 1033. The opening 1033 is opened and closed by the sealing cover 104, so as to facilitate cleaning of dust and impurities accumulated in the dust collecting chamber 1031.

[0061] In a preferred embodiment, the aforementioned opening 1033 is arranged downward. After opening the sealing cover 104, the dust and impurities accumulated in the dust collecting chamber 1031 can fall down under the action of gravity. Therefore, limiting the direction of the opening 1033 is conducive to improving the convenience of removing dust and impurities in the dust collecting chamber 1031.

[0062] Reference Figure 2 and Figure 4 As shown, in this embodiment, a third sealing portion 7 is further provided between the sealing cover 104 and the dust collecting box 103. The third sealing portion 7 can seal the gap between the sealing cover 104 and the dust collecting box 103, which is beneficial to ensure the air intake effect of the air filter. In terms of specific structure, the third sealing portion 7 can adopt an existing standard sealing ring, which is relatively low in cost.

[0063] Specifically, the aforementioned sealing cover 104 is detachably connected to the dust collecting box 103 . Thus, by providing the detachably connected sealing cover 104 to open and close the opening 1033 , the sealing cover 104 is easy to install and remove, which is beneficial to clear the dust and impurities accumulated in the dust collecting chamber 1031 .

[0064] As in the present embodiment, the sealing cover 104 and the dust box 103 are connected by snapping, and a plurality of snap joints are provided on the dust box 103, and the plurality of snap joints are arranged at circumferential intervals around the opening 1033, and a flange bent toward the dust box 103 is provided on the edge of the sealing cover 104, and a plurality of protrusions protruding toward one side of the dust box 103 are provided on the flange, and the plurality of protrusions are arranged at circumferential intervals around the sealing cover 104, and the protrusions correspond one-to-one to the aforementioned snap joints, and a snap hole is provided on each protrusion, and each snap joint can be snapped into the corresponding snap hole, so that the sealing cover 104 is easy to assemble and disassemble.

[0065] It should be noted that the sealing cover 104 and the dust box 103 may be connected in other ways besides being connected by snap connection, for example, one end of the sealing cover 104 is pivotally connected to the dust box 103, and the other end is connected to the dust box 103 by snap connection or screw connection, or the sealing cover 104 and the dust box 103 may be connected by screw connection. It should be understood that the dust box 103 and the end cover 102 may be fixedly connected together.

[0066] In this embodiment, the dust collection box 103 and the aforementioned housing main body 101 are formed into an integral structure, which is relatively convenient for processing. However, in addition to this, the dust collection box 103 and the aforementioned housing main body 101 can of course also be connected in a detachable manner, such as screwed connection, snap connection, etc. At this time, in order to ensure the air intake effect, a sealing part for sealing the gap between the dust collection box 103 and the aforementioned housing main body 101 can be provided.

[0067] When the air filter is arranged on the whole vehicle, the dust collection box 103 is located at the lower part of the filter housing 1, that is, at the lowest point of the air filter. This position is also in the low-pressure area of the air filter, so that foreign matters such as impurities and dust entering the air filter can directly enter or slide into the dust collection box 103, facilitating subsequent cleaning work.

[0068] In addition, the added dust collection box 103 can also increase the volume of the air filter, thereby improving the sound absorption ability of the intake system. At the same time, by adjusting the distance between the dust collection box 103 and the housing main body 101, the sound absorption frequency can be reliably adjusted, further improving the NVH (Noise, Vibration, Harshness) performance of the intake system.

[0069] In order to improve the convenience of installing and removing the filter element 3, as Figure 2 and Figure 5 shown, as a preferred implementation manner, end caps 102 are provided at both ends of the housing main body 101. The end caps 102 at both ends are connected by a connecting member 6, and the housing main body 101 is clamped between the end caps 102 at both ends.

[0070] In this embodiment, the connecting member 6 specifically includes bolts, nuts, etc. Referring to Figure 4 shown, a plurality of outer convex parts are provided on the outer periphery of each end cap 102, and connecting holes are provided on each outer convex part. The connecting holes on the end caps 102 at both ends correspond one by one. After the bolts pass through the corresponding connecting holes, by tightening the nuts, the housing main body 101 is clamped between the end caps 102 at both ends, which is relatively convenient for processing.

[0071] It should be noted that in the above structure, end caps 102 are provided at both ends of the housing, and the end caps 102 at both ends are connected to clamp the housing main body 101, which is convenient for installation and removal and can improve the convenience of replacing the filter element 3. It is also possible to seal one end of the air flow channel 1011 in the housing main body 101. At this time, no end cap 102 needs to be provided at this end.

[0072] In addition, in addition to the method of connecting the end caps 102 at both ends through the connecting member 6 to form a detachable connection structure between each end cap 102 and the housing main body 101, the end caps 102 at both ends can also be directly detachably connected to the housing main body 101 respectively, or the end caps 102 at both ends can be integrally connected to the housing. In this case, in order to facilitate the replacement of the filter element 3, the filter housing 1 can be divided into two half-housings, and the joint position of the two half-housings is detachably connected, which is also convenient for replacing the filter element 3.

[0073] As Figures 2 to 4 shown, as a preferred embodiment, an air inlet passage 1012 is provided on the housing main body 101. The air inlet passage 1012 is arc-shaped. The outlet of the air inlet passage 1012 is tangent to and communicates with the outer periphery of the air flow passage 1011. The inlet of the air inlet passage 1012 is arranged away from the housing main body 101.

[0074] As Figure 4 shown, in the preferred embodiment, the center line of the air inlet passage 1012 extends along the bending direction of the solid line d1. This is beneficial to accelerating the flow rate of the air flow entering the air flow passage 1011 and making the air filter occupy a smaller space. In addition, the center line of the air inlet passage 1012 can of course also extend along the direction of the dotted line d2. The dotted line d2 is a straight line and is collinear with the following tangent line c. Or, the center line of the air inlet passage 1012 can also extend along the bending direction of the dotted line d3.

[0075] It should also be noted here that in this embodiment, there is a gap between the outer wall of the inlet part of the air inlet passage 1012 and the outer wall of the housing main body 101, that is, the two are separated. This makes the overall weight of the filter housing 1 lighter, the material usage less, and the cost lower. In addition, the outer wall of the inlet part of the air inlet passage 1012 and the outer wall of the housing main body 101 can also be connected together.

[0076] Preferably, the tangent line c at the connecting part of the air inlet passage 1012 and the air flow passage 1011 is arranged skew to the axial center b, that is, the tangent line c does not intersect the axial center b, which is beneficial to the rotation of the filter element guide cover 2. It should be noted that the tangent line c here refers to the tangent line of the air flow passage 1011. Here, an arc-shaped air inlet passage 1012 is provided, and the tangent line c at the connecting part of the air inlet passage 1012 and the air flow passage 1011 is arranged skew to the axial center b, which is convenient to control the flow direction of the air flow entering the air flow passage 1011, so that the air flow entering the air flow passage 1011 can form a vortex shape, which is convenient to increase the intake pressure and intake speed, and thus is beneficial to further improving the self-dust removal effect of the filter element 3. In order to further improve the self-dust removal effect, the tangent line c at the connecting part of the air inlet passage 1012 and the air flow passage 1011 is preferably orthogonally arranged to the axial center b, which is beneficial to the formation of eddy currents of the air flow entering the air flow passage 1011 and is beneficial to improving the intake efficiency.

[0077] Existing air filters mostly adopt a single-in and single-out structure, with a single design structure and large intake resistance. In this embodiment, continue to refer to Figures 2 to 4 As shown, an air outlet channel 1021 communicating with the air flow channel 1011 is provided on at least one of the end caps 102, which is convenient for overall layout.

[0078] In this embodiment, air outlet channels 1021 are provided on both end caps 102 at both ends. The air outlet channels 1021 at both ends are respectively communicated with the air flow channel 1011, and the axial directions of the air outlet channels 1021 at both ends are the same as the axial direction of the air flow channel 1011, which is convenient for overall layout, has small intake resistance, is beneficial to increasing the intake air volume, and is convenient for supplying air to two air-using mechanisms.

[0079] As Figure 2 、 Figure 4 and Figure 5 As shown, as a preferred embodiment, the filter element guide cover 2 includes a guide cover main body 201 having a plurality of guide vanes 2011, and guide cover mounting portions 202 provided at both ends of the guide cover main body 201. The guide cover mounting portions 202 at both ends are respectively mounted on the corresponding end caps 102, so as to mount the filter element guide cover 2 in the filter housing 1, and the filter element 3 can be mounted in the filter element guide cover 2.

[0080] In the preferred embodiment, the plurality of guide vanes 2011 are respectively arranged at intervals on the boundary of a cylinder, which is convenient for guiding the intake direction of the air flow. The main body 201 of the filter element guide cover 2 further includes two circular ring plates, and each guide vane 2011 is connected between the two circular ring plates, and can be integrally formed by an injection molding process, which is convenient for processing. The filter element 3 is mounted in the area surrounded by the plurality of guide vanes 2011 to facilitate filtering impurities and dust in the air.

[0081] In the above structure, the filter element guide cover 2 includes a guide cover main body 201 and guide cover mounting portions 202, which is convenient for arranging the filter element 3 and for mounting the filter element guide cover 2 in the filter housing 1. Preferably, at least one of the guide cover mounting portions 202 is detachably connected to the guide cover main body 201, which has a good effect of being convenient for mounting on the filter housing 1 and for installing and disassembling the filter element 3.

[0082] In this embodiment, one side of the guide cover mounting portion 202 is integrally formed with the guide cover main body 201, and the other side of the guide cover mounting portion 202 is connected to the guide cover main body 201 by insertion, which is convenient for processing and assembly. It should be understood that it is also feasible that the guide cover mounting portions 202 on both sides are respectively detachably connected to the guide cover main body 201.

[0083] In order to improve the air intake effect of the air filter, when the air deflector mounting part 202 and the air deflector main body 201 are detachably connected, a first sealing part 4 needs to be arranged at the connection part. The first sealing part 4 is mainly used to seal the gap between the air deflector mounting part 202 and the air deflector main body 201, and has a good effect of improving the air intake performance. The first sealing part 4 can adopt an existing gasket, for example, and the procurement cost is relatively low.

[0084] In order to improve the air supply efficiency, as Figure 5 shown, as a preferred embodiment, air outlet channels 1021 are provided on both end caps 102 at both ends, and each air deflector mounting part 202 has an insertion part 2021 inserted into the air outlet channel 1021. Here, two air outlet channels are provided, which can supply air to the two air outlet channels 1021, facilitating the improvement of the air outlet efficiency and reducing the transmission loss of the air intake system. At the same time, the air outlet channels 1021 are provided on the two end caps 102, and the air deflector mounting part can also be inserted, which can improve the convenience of the installation and disassembly of the filter element air deflector 2.

[0085] It should be understood that it is also possible to provide the air outlet channel 1021 on only one of the end caps 102. At this time, the air deflector mounting part 202 and the end cap 102 can still be connected by a plugging method, and other methods such as clamping and screwing can also be used.

[0086] In order to ensure the air intake performance of the air filter, a second sealing part 5 for sealing the gap between the two is provided between the side walls of each insertion part 2021 and the air outlet channel 1021, which is conducive to ensuring the air intake effect of the air filter. Preferably, an interference fit is adopted between the insertion part 2021 and the air outlet channel 1021, and the second sealing part 5 can adopt an existing sealing ring, for example, to prevent unfiltered air in the air filter housing 1 from directly entering the air outlet hole channel due to the setting of the gap.

[0087] It should be noted that in this embodiment, the air deflector mounting part 202 and the air deflector main body are preferably made of a plastic material, which is lighter in weight, convenient for the filter element air deflector 2 to drive the filter element 3 to rotate under the action of the intake air flow, conducive to increasing the intake air pressure and improving the self-dust removal effect.

[0088] Still referring to Figure 5 shown, as a preferred embodiment, each air deflector mounting part 202 has an extension part 2022 extending into the air flow channel 1011, and both ends of the filter element 3 are respectively sleeved on the extension parts 2022 at the corresponding ends, and an interference fit is adopted between the filter element 3 and the extension part 2022, so that the filter element 3 is convenient for installation and disassembly, and is conducive to ensuring the stability of the installation of the filter element 3. And a certain gap is conveniently reserved between the filter element 3 and the air deflector blades, thereby preventing the filter element 3 from entering and exiting.

[0089] Existing air filter structures all adopt traditional filter element installation structures. Impurities in the air easily block the filter element 3, resulting in an increase in transmission loss, which in turn affects the engine intake air volume. The air filter of this embodiment has a simple and compact structure, is easy to arrange, is conducive to shortening the design cycle and production cycle, saves development costs, is convenient for installation and disassembly of each component, is convenient for after-sales maintenance, and can better improve the product quality of the air filter.

[0090] This air filter rotatably arranges the filter element guide cover 2 in the air flow channel 1011, and makes the rotation center a eccentrically arranged relative to the axial center b of the air flow channel 1011. At the same time, in the form of a double air outlet channel 1021, under the action of the air flow flowing through the air flow channel 1011, the filter element guide cover 2 can drive the filter element 3 to rotate, which can increase the intake air pressure, further strengthen the rotation performance of the filter element 3, and can achieve the self-cleaning effect of the filter element 3, can extend the replacement time of the filter element 3, reduce the use cost, and is conducive to increasing the engine intake air volume.

[0091] At the same time, due to the adoption of the tangential intake channel 2012 and the eccentric design of the filter element 3, the air entering the air filter generates a swirling air flow, which in turn causes differences in flow velocity and air pressure, increasing the gas pressure of the air flowing out of the air filter. Without adding a supercharging mechanism, it is conducive to the rotation of the filter element 3 and the change of the pressure difference, and then realizes the self-cleaning function of the filter element 3.

[0092] Embodiment 2

[0093] This embodiment relates to a vehicle, and the above air filter is provided in the engine intake system of the vehicle.

[0094] The vehicle of this embodiment, by applying the air filter of Embodiment 1, can increase the intake air pressure, can achieve the self-cleaning effect of the filter element 3, can extend the replacement time of the filter element 3, reduce the use cost, is conducive to increasing the engine intake air volume, and is also conducive to improving the service life of the shifter.

[0095] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air filter, characterized in that: It comprises a filter housing (1), a filter element flow guide cover (2) and a filter element (3); An air flow channel (1011) is provided in the filter housing (1); The filter element flow guide cover (2) is rotatably arranged in the air flow channel (1011), the rotation center (a) of the filter element flow guide cover (2) extends along the axial center (b) of the air flow channel (1011), and the rotation center (a) is eccentrically arranged relative to the axial center (b); The filter element (3) is arranged on the filter element flow guide cover (2).

2. The air filter according to claim 1, characterized in that: The filter housing (1) comprises a housing body (101) and an end cover (102) at at least one end of the housing body (101); The shell body (101) is detachably connected to the end cover (102); the airflow channel (1011) is formed inside the shell body (101); and the end cover (102) is blocked at the end of the airflow channel (1011).

3. The air filter according to claim 2, characterized in that: The housing body (101) is cylindrical, and a dust collecting box (103) is provided at the lower part of the housing body (101); The dust collecting chamber (1031) in the dust collecting box (103) is connected to the air flow channel (1011) via a connecting port (1032), and the connecting port (1032) is in the shape of a long strip extending along the axial center (b) of the air flow channel (1011).

4. The air filter according to claim 3, characterized in that: The dust collecting box (103) is provided with an opening (1033) communicating with the dust collecting chamber (1031), and a sealing cover (104) capable of opening and closing the opening (1033); a third sealing portion (7) is provided between the sealing cover (104) and the dust collecting box (103) for sealing a gap therebetween; The opening (1033) is arranged downward, and / or the sealing cover (104) is detachably connected to the dust collecting box (103).

5. The air filter according to any one of claims 2 to 4, characterized in that: The end covers (102) are provided at both ends of the shell body (101), and the end covers (102) at both ends are connected by connecting pieces (6), and the shell body (101) is sandwiched between the end covers (102) at both ends.

6. The air filter according to claim 5, characterized in that: An air intake channel (1012) is provided on the shell body (101), the air intake channel (1012) is arc-shaped, the outlet of the air intake channel (1012) is tangent to and communicates with the outer periphery of the air flow channel (1011), and the inlet of the air intake channel (1012) is arranged away from the shell body (101); a tangent line (c) passing through the air intake channel (1012) and the connecting portion of the air flow channel (1011) is arranged unequally with the axial center (b); At least one of the end covers (102) is provided with an air outlet channel (1021) that is in communication with the air flow channel (1011).

7. The air filter according to claim 6, characterized in that: The filter element flow guide cover (2) comprises a flow guide cover body (201) having a plurality of flow guide blades (2011), and flow guide cover mounting parts (202) arranged at both ends of the flow guide cover body (201); The air deflector mounting parts (202) at both ends are respectively mounted on the end covers (102) at the corresponding ends, at least one of the air deflector mounting parts (202) is detachably connected to the air deflector body (201), and a first sealing part (4) is provided at the connection position for sealing the gap between the two.

8. The air filter according to claim 7, characterized in that: The end covers (102) at both ends are provided with the air outlet channel (1021), each of the air deflector mounting parts (202) has an insertion part (2021) inserted into the air outlet channel (1021), and a second sealing part (5) is provided between the insertion part (2021) and the side wall of the air outlet channel (1021) to seal the gap between the two.

9. The air filter according to claim 7, characterized in that: Each of the air guide cover mounting portions (202) has an extension portion (2022) extending into the air flow channel (1011), and the two ends of the filter element (3) are respectively sleeved on the extension portion (2022) at the corresponding end.

10. A vehicle, characterized in that: The engine air intake system of the vehicle is provided with an air filter as claimed in any one of claims 1 to 9.

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