Air filter and vehicle

Abstract

The utility model belongs to the field of air inlet systems, and particularly relates to an air filter and a vehicle. The shell is provided with an air inlet and an air outlet, the filter element is annular and at least provided with a first filter element and a second filter element, the air outlet part is provided with a main air outlet channel communicated with the air outlet, and the first filter element, the air outlet part and the second filter element are arranged in the shell in series. Due to the fact that the filter elements arranged in the shell at least comprise the first filter element and the second filter element, the filter range can be greatly enlarged through the arrangement of the multiple filter elements, and the filter effect is improved; the first filter element, the air outlet part and the second filter element are arranged in the shell in series, so that the air filter can adapt to a long and narrow mounting space, the adaptability is high, and mounting is convenient; in addition, the filter element is an annular filter element, the filtering area can be increased as much as possible, and the filtering effect is further improved.

Description

Technical Field

[0001] The utility model belongs to the field of intake systems, and particularly relates to an air filter and a vehicle. Background Art

[0002] An air filter (also known as an air cleaner) is a part of the intake system of vehicles such as cars, ATVs, and motorcycles. Its main function is to filter out impurities or dust in the air and allow clean air to enter the engine cylinder. The air filter usually filters the inhaled air by installing a filter element in a housing, and then provides the relatively clean filtered air to the engine for use.

[0003] An air filter generally includes two parts: a main body and a cover that are connected to each other. The filter element is installed in the internal space formed by the combination of the cover and the main body. At the same time, an air inlet and an air outlet are provided on the cover or the main body. The gas enters from the air inlet, passes through the filter element for filtration, and then flows out from the air outlet to complete the air filtration process. The existing air filters generally have only one filter element. The setting of a single filter element is likely to cause insufficient air intake or poor filtration effect, making it difficult to meet the engine intake requirements. In addition, for some narrow installation spaces, conventional air filters are difficult to fit and install, and the volume of the filter element is limited, so the purification efficiency cannot be satisfied. Summary of the Utility Model

[0004] The present utility model is made to solve the above problems, and aims to provide an air filter and a vehicle, which have multiple filter elements, and the multiple filter elements are arranged in series with the air outlet part, not only ensuring the purification effect of the filter elements, but also being able to adapt to the installation in a narrow environment.

[0005] The present utility model provides an air filter, having the following features: a housing, having an air inlet and an air outlet; a filter element, in a ring shape, having at least a first filter element and a second filter element; an air outlet part, having a main air outlet passage communicating with the air outlet, and the first filter element, the air outlet part and the second filter element are arranged in series in the housing.

[0006] In the air filter provided by the present utility model, it may further have the following features: the air inlet has a first air inlet and a second air inlet corresponding to the first filter element and the second filter element respectively. A first air inlet cavity communicating with the first air inlet is formed between the outer circle of the first filter element and the inner wall of the housing, and a first air outlet passage communicating with the main air outlet passage is formed in the inner circle. A second air inlet cavity communicating with the second air inlet is formed between the outer circle of the second filter element and the inner wall of the housing, and a second air outlet passage communicating with the main air outlet passage is formed in the inner circle.

[0007] The air filter provided by the utility model may also have the following features: the air outlet portion includes: an annular main body, in which the main air outlet channel is opened, an inner cavity is formed between the outer periphery and the inner wall of the shell, a plurality of partitions are distributed on the outer periphery of the annular main body and divide the inner cavity into a plurality of air cavities, and a plurality of through holes are distributed on the annular main body and connect the main air outlet channel with the air cavities.

[0008] The air filter provided by the utility model may also have the following characteristics: the first filter element and the second filter element are respectively placed at the two ends of the annular body in the axial direction, or the first filter element and the second filter element are arranged in series at one end of the annular body.

[0009] The air filter provided by the utility model may also have the following characteristics: the first filter element and / or the second filter element include: a mounting bracket, having a cylindrical support portion and groove-shaped mounting portions located at both ends of the support portion, a filter element body, which is sleeved on the outer periphery of the support portion, and the two end portions along the axial direction are inserted into the mounting portion, a slot for inserting the end of the filter element body is formed on the side of the mounting portion facing the filter element body, and a first fixing seat and a second fixing seat are formed on the side of the mounting portion away from the filter element body, which are respectively fixed to the shell and the annular main body.

[0010] The air filter provided by the utility model may also have the following feature: a fixing portion is formed on the inner wall of the shell, and the first fixing seat is fixed to the fixing portion by a fixing piece.

[0011] The air filter provided by the utility model may also have the following characteristics: the second fixing seat is a mounting protrusion ring formed by the mounting portion protruding toward one side of the annular body, and the annular body is provided with a corresponding annular groove for the mounting protrusion ring to be embedded and installed, and a sealing ring is provided between the mounting protrusion ring and the annular groove.

[0012] The air filter provided by the utility model may also have the following features: the shell includes an upper shell and a lower shell, a snap connection assembly is provided between the upper shell and the lower shell, and the snap connection assembly includes: a snap seat, which is integrally formed on the lower shell and has a snap hole; a snap plate, which is integrally formed on the upper shell, snaps into the snap hole, and has an upwardly bent or upwardly inclined shape; and a connecting piece, which connects and fixes the upper shell and the lower shell together.

[0013] The air filter provided by the utility model may also have the following feature: the air inlet and the air outlet are respectively disposed at the front and rear sides of the housing.

[0014] The present utility model also provides a vehicle, which has the following features: at least including an air filter, and the air filter is the air filter as described above.

[0015] The prominent and beneficial technical effects of the present utility model compared with the prior art are as follows:

[0016] For the air filter of the present utility model, since the filter element arranged in the housing at least includes a first filter element and a second filter element, the arrangement of multiple filter elements can greatly enhance the filtration range and improve the filtration effect; and the first filter element, the air outlet part and the second filter element are arranged in series in the housing, so that the air filter can adapt to a narrow installation space, has high adaptability and is convenient for installation; in addition, the filter element is an annular filter element, which can increase the filtration area as much as possible and further improve the filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural view of the front side perspective of Embodiment 1 of the present utility model.

[0018] Figure 2 It is a schematic structural view of the rear side perspective of Embodiment 1 of the present utility model.

[0019] Figure 3 It is a schematic structural view of Embodiment 1 of the present utility model after removing the upper housing.

[0020] Figure 4 It is a schematic cross-sectional view of Embodiment 1 of the present utility model along the axial direction of the filter element.

[0021] Figure 5 It is a schematic structural view of the air outlet part of Embodiment 1 of the present utility model.

[0022] Figure 6 It is a schematic cross-sectional view of the present utility model along the axial direction of the air outlet.

[0023] Figure 7 It is an exploded schematic structural view of the filter element of the present utility model.

[0024] Figure 8 It is a schematic structural view of the mounting bracket of the present utility model.

[0025] Figure 9 It is an exploded view of the housing structure of the front side perspective of Embodiment 1 of the present utility model.

[0026] Figure 10 It is an exploded view of the housing structure of the rear side perspective of Embodiment 1 of the present utility model.

[0027] Reference numerals: 1 - housing; 11 - air inlet; 111 - first air inlet; 112 - second air inlet; 12 - air outlet; 13 - first air intake cavity; 14 - second air intake cavity; 15 - fixing part; 16 - upper housing; 17 - lower housing; 18 - buckle seat; 19 - clamping plate; 2 - filter element; 21 - first filter element; 22 - second filter element; 23 - first air outlet channel; 24 - second air outlet channel; 25 - mounting bracket; 251 - supporting part; 252 - mounting part; 252a - first mounting part; 252b - second mounting part; 253 - slot; 254 - first fixing seat; 255 - slot; 256 - second fixing seat; 26 - filter element body; 3 - air outlet part; 31 - main air outlet channel; 32 - annular body; 33 - partition; 34 - air cavity; 35 - through hole; 36 - air outlet pipe; 37 - annular groove; 4 - connecting pipe; 51 - fixing piece; 52 - connecting platform; 53 - connecting piece. Detailed implementation manners

[0028] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the following embodiments will specifically elaborate on the technical solutions of the air filter and the vehicle of the present utility model in conjunction with the accompanying drawings.

[0029] It should be noted that the structures, ratios, sizes, etc. shown in the attached drawings of the embodiments of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have any technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the functions that the present utility model can generate and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "inside", "outside", "front" and "rear" cited in the embodiments of this specification are only for the convenience of description and are not used to limit the scope under which the present utility model can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0030] It should also be noted that when an element is referred to as being "fixed", "arranged" or "connected" to another element, it can be directly on the other element or there may be an intermediate element at the same time. In addition, the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0031] <Example 1>

[0032] This embodiment provides an air filter and a vehicle. The air filter is installed on the vehicle, such asFigures 1 - 3 As shown, the air filter includes a housing 1, a filter element 2, and an air outlet portion 3. The housing 1 has at least two air inlets 11 and one air outlet 12. A connecting pipe 4 connected to the engine is installed on the air outlet 12. The filter element 2 is installed inside the housing 1 and has the same number as the air inlets 11. The air outlet portion 3 is installed inside the housing 1 and has a main air outlet passage 31 communicating with the air outlet 12. In this embodiment, two air inlets 11 and two filter elements are taken as examples for detailed description: The filter element 2 includes a first filter element 21 and a second filter element 22. The air inlet chamber includes a first air inlet chamber 13 and a second air inlet chamber 14. The air inlet 11 includes a first air inlet 111 corresponding to the first filter element 21 and a second air inlet 112 corresponding to the second filter element 22. The first filter element 21, the air outlet portion 3, and the second filter element 22 are arranged in series inside the housing 1 in a linear layout, which is suitable for a narrow installation environment.

[0033] As Figure 2 shown, both the first filter element 21 and the second filter element 22 are annular filter elements, each having an outer ring and an inner ring. In this embodiment, the first air inlet 111 and the second air inlet 112 are opened on the front side (i.e., the long side) of the housing 1. A first air inlet chamber 13 is formed between the outer ring of the first filter element 21 and the inner wall of the housing 1. A first air outlet passage 23 is formed by surrounding the inner ring of the first filter element 21; a second air inlet chamber 14 is formed between the outer ring of the second filter element 22 and the inner wall of the housing 1. A second air outlet passage 24 is formed by surrounding the inner ring of the second filter element 22. Both the first air outlet passage 23 and the second air outlet passage 24 are connected to the main air outlet passage 31. The air entering from the first air inlet 111 and the second air inlet 112 respectively enters the first air inlet chamber 13 and the second air inlet chamber 14, then passes through the first filter element 21 and the second filter element 22 respectively for filtration, and then enters the first air outlet passage 23 and the second air outlet passage 24 respectively, and finally both flow out from the main air outlet passage 31 to the engine connecting pipe 4 on the air outlet 12. In this embodiment, the length of the first filter element 21 is longer than that of the second filter element 22. Correspondingly, the length of the first air inlet 111 is also longer than that of the second air inlet 112. In actual situations, they can also be made equal, and the length can be set according to the actual installation scenario.

[0034] As Figures 4 - 6As shown, the air outlet part 3 includes an annular main body 32 and a plurality of partition plates 33. A main air outlet passage 31 is formed inside the annular main body 32. An inner cavity is formed between the outer periphery of the annular main body 32 and the inner wall of the housing 1. The plurality of partition plates 33 are distributed on the outer periphery of the annular main body 32 and divide the inner cavity into a plurality of air cavities 34. A plurality of through holes 35 for communicating the main air outlet passage 31 and the air cavities 34 are distributed on the annular main body 32. An air outlet pipe 36 combined with the air outlet 12 is further provided on one side of the annular main body 32. After the gas from the first air outlet passage 23 and the second air outlet passage 24 flows into the main air outlet passage 31, it enters the air outlet 12 through the air outlet pipe 36. Since the gas from the first air outlet passage 23 and the second air outlet passage 24 will both flow into the main air outlet passage 31, noise is easily generated when the gas here converges and collides. Therefore, the form of using the partition plates 33 to divide into multiple air cavities 34 and distributing porous holes on the annular main body 32 can greatly reduce noise.

[0035] The air outlet part adopts the method of noise reduction by cavity division and perforation, requiring the volume to be as large as possible, the perforations to be as many as possible, and the pipe cross-section to be as small as possible under the condition of meeting the flow resistance. Reasonably determine each design frequency and keep each K value uniform, that is, the shape of each resonance peak is uniform. In addition, when the volume is sufficient, especially when the density is determined, the size, quantity and frequency of the perforation apertures satisfy the following relationship: the larger the perforation area, the higher the frequency; when the perforation area is constant, the smaller the single aperture, the more the quantity and the more dispersed, the higher the frequency. At the same time, the effective coefficient is determined: for the effective coefficient relative to a single aperture, when the perforation area is constant, the smaller and denser the holes, the larger the effective coefficient (the effective coefficient is adjusted according to simulation or actual measurement). By adjusting the volume, it can converge to the design frequency more quickly, so generally mufflers are in a stepped shape. In addition, when the volume is limited, most of the low frequencies are quickly completed in the design by adjusting the volume, and a small part of the high frequencies can only utilize the remaining volume to achieve the design by adjusting the perforations.

[0036] As Figure 4 , Figure 7 and Figure 8 shown, the first filter element 21, the second filter element 22 and the annular main body 32 are arranged in a straight line. For example, in this embodiment, as Figure 3 and Figure 4 shown, the first filter element 21 and the second filter element 22 are respectively placed at both axial ends of the annular main body 32. The first filter element 21 and the second filter element 22 have the same structure, and both include a mounting bracket 25 and a filter element body 26. The mounting bracket 25 has a cylindrical support portion 251 and mounting portions 252 in the shape of grooves located at both ends of the support portion. The filter element body 26 is sleeved on the outer periphery of the support portion 251, and both axial end portions are inserted into the mounting portions 252.

[0037] As Figure 7 and Figure 8As shown, the support portion 251 is columnar and arranged in a grid pattern to facilitate gas passage. The mounting portion 252 includes a first mounting portion 252a and a second mounting portion 252b located at both ends of the support portion 251. The first mounting portion 252a is used to be fixed to the inner wall of the housing 1. The first mounting portion 252a is provided with a slot 253 for inserting the end of the filter element body 26 on the side facing the filter element body 26, and a first fixing seat 254 fixed to the housing 1 is formed on the side of the first mounting portion 252a facing away from the filter element body. Figure 4 As shown, a fixing portion 15 is formed on the inner wall of the housing 1, and the first fixing seat 254 is fixed to the fixing portion 15 by a fixing member 51, and the fixing member 51 can be a screw. The second mounting portion 252b is used to fix with the end of the annular body 32, and the second mounting portion 252b is provided with a slot 255 for inserting the end of the filter element body 26 on the side facing the filter element body 26, and the second mounting portion 252b is formed with a second fixing seat 256 fixed to the annular body 32 on the side facing away from the filter element body 26. Figure 8 As shown, the second fixing seat 256 is a mounting protruding ring formed by the second mounting portion 252b protruding toward one side of the annular body 32, as shown in FIG. Figure 5 As shown, the annular main body 32 is provided with an annular embedding groove 37 for the installation convex ring to be embedded and installed, and a sealing ring is pressed between the installation convex ring and the annular embedding groove 37 to ensure sealing.

[0038] like Figure 9 and Figure 10 As shown, the housing 1 includes an upper housing 16 and a lower housing 17 connected to each other, a first air inlet 111, a second air inlet 112 and a main air outlet 12 are all arranged on the lower housing 17, and the air inlet and the air outlet 12 are respectively arranged on the front and rear sides of the lower housing 17. A water leakage hole is also arranged at the bottom of the lower housing 17, which is used to discharge the liquid that follows the gas into the air inlet cavity. A snap connection assembly is arranged between the upper housing 16 and the lower housing 17, and the snap connection assembly includes a snap seat 18 and a clamping plate 19. The snap seat 18 is integrally formed on the front side (the side where the air inlet is located) of the lower housing 17, and a clamping hole is opened toward the rear side. The clamping plate 19 is integrally formed on the front side (the side where the air inlet is located) of the upper housing 16, and the clamping plate 19 is clamped into the clamping hole. The clamping plate 19 has an upwardly bent or upwardly inclined shape. A connection platform 52 is formed correspondingly on the rear side of the upper shell 16 and the lower shell 17 (the side where the air outlet 12 is located), and a connection hole is opened on the connection platform 52. A connection member 53 (such as a screw) passes through the connection hole in the middle of the connection platform 52 on the upper shell 16 and is inserted into the connection hole in the middle of the connection platform 52 on the lower shell 17 to connect and fix the upper shell 16 and the lower shell 17 together. A sealing ring is also pressed at the connection between the upper shell 16 and the lower shell 17 to ensure sealing.

[0039] <Example 2>

[0040] This embodiment is basically the same as Embodiment 1 above, except that the first filter element 21 and the second filter element 22 are arranged in series at one end of the annular main body 32.

[0041] <Embodiment 3>

[0042] This embodiment is basically the same as Embodiment 1 above, except that the first air inlet 111 and the second air inlet 112 are respectively opened on the left and right sides (i.e., the short sides) of the housing 1. The inner circle of the first filter element 21 surrounds to form a first air inlet cavity, and a first air outlet channel is formed between the outer circle and the inner wall of the housing 1; the inner circle of the second filter element 22 surrounds to form a second air inlet cavity 14, and a second air outlet channel 24 is formed between the outer circle of the second filter element 22 and the inner wall of the housing 1.

[0043] Technical effects of the embodiment

[0044] For the air filter of the above embodiment, since at least two air inlets (the first air inlet 111, the second air inlet 112) are provided on the housing 1, and filter elements 2 corresponding to the number of air inlets are provided inside, and independent air inlet cavities can be formed between the inner wall of the housing 1 and each filter element 2, and each air inlet cavity corresponds to one air inlet, so that during operation, multiple air inlets can intake air simultaneously and filter respectively, greatly improving the air intake volume and the filtering efficiency.

[0045] Furthermore, the air outlet part 3 has an annular main body 32 and several partition plates 33. The annular main body 32 has a shape adapted to the filter element 2, so that the gas filtered by the filter element 2 can enter the inside of the annular main body 32 and flow out through the main air outlet channel 31 located inside the annular main body 32. The partition plates 33 are distributed on the outer periphery of the annular main body 32 and can divide the inner cavity formed between the annular main body 32 and the inner wall of the housing 1 into several air cavities, which can greatly reduce the noise generated when the gas from the filter element gathers here, and has a good noise reduction function.

[0046] Furthermore, multiple filter elements 2 and the air outlet part 3 are arranged in a straight line in series. It can be the arrangement mode in which the first filter element and the second filter element are respectively placed at both axial ends of the annular main body, or the arrangement mode in which the first filter element and the second filter element are arranged in series at one end of the annular main body, so that the whole air filter presents a long strip shape, which is convenient for installation in a relatively narrow installation scenario.

[0047] Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the present invention still belongs to the preferred cases of the present invention and is not used to limit the protection scope of the present invention, as long as it is within the scope of the technical solution of the present invention. For example, in the above embodiments, there are two filter elements and air inlets. In actual situations, there can also be three or more, which can be arranged according to the actual installation scenario.

Claims

1. An air filter, characterized in that, include: The housing has an air inlet and an air outlet, The filter element is annular and has at least a first filter element and a second filter element. The air outlet portion has a main air outlet passage communicating with the air outlet, The first filter element, the air outlet portion and the second filter element are arranged in series in the housing; The air inlet has a first air inlet and a second air inlet corresponding to the first filter element and the second filter element respectively. A first air inlet cavity connected to the first air inlet is formed between the outer ring of the first filter element and the inner wall of the housing, and a first air outlet channel connected to the main air outlet channel is formed on the inner ring. A second air inlet cavity communicated with the second air inlet is formed between the outer ring of the second filter element and the inner wall of the shell, and a second air outlet channel communicated with the main air outlet channel is formed on the inner ring.

2. The air filter according to claim 1, wherein: The gas outlet portion comprises: The annular main body has the main air outlet channel opened inside, and an inner cavity is formed between the outer periphery and the inner wall of the shell. A plurality of partitions are distributed on the outer periphery of the annular body and divide the inner cavity into a plurality of air cavities. A plurality of through holes are distributed on the annular body, connecting the main air outlet channel with the air cavity.

3. The air filter according to claim 2, characterized in that: The first filter element and the second filter element are respectively disposed at two ends of the annular body in the axial direction, or the first filter element and the second filter element are arranged in series at one end of the annular body.

4. The air filter according to claim 2, wherein: The first filter element and / or the second filter element comprises: The mounting bracket comprises a cylindrical supporting portion and groove-shaped mounting portions located at both ends of the supporting portion. The filter element body is sleeved on the outer periphery of the support portion, and the two ends along the axial direction are inserted into the mounting portion. The mounting portion is provided with a slot for inserting the end of the filter element body on one side facing the filter element body, and a first fixing seat and a second fixing seat respectively fixed to the shell and the annular main body are formed on the side of the mounting portion away from the filter element body.

5. The air filter according to claim 4, wherein: A fixing portion is formed on the inner wall of the shell, and the first fixing seat is fixed to the fixing portion via a fixing piece.

6. The air filter according to claim 4, wherein: The second fixing seat is a mounting convex ring formed by the mounting portion protruding toward one side of the annular body, and the annular body is correspondingly provided with an annular embedding groove for the mounting convex ring to be embedded and installed, and a sealing ring is provided between the mounting convex ring and the annular embedding groove.

7. The air filter according to any one of claims 1-6, characterized in that: The housing comprises an upper housing and a lower housing, and a snap-fit ​​connection assembly is provided between the upper housing and the lower housing, and the snap-fit ​​connection assembly comprises: A buckle seat is integrally formed on the lower shell and is provided with a buckle hole; A card plate, integrally formed on the upper shell, inserted into the card hole, and having an upwardly curved or upwardly inclined shape; and A connecting piece connects and fixes the upper shell and the lower shell together.

8. The air filter according to any one of claims 1 to 6, characterized in that: The air inlet and the air outlet are respectively arranged at the front and rear sides of the shell.

9. A vehicle, characterized in that, At least: Air filter, The air filter is the air filter as described in any one of claims 1 to 8.

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