An oil filter and automobile

Abstract

This invention discloses an oil filter and an automobile. The oil filter includes: a housing assembly having an oil passage and an oil inlet and an oil outlet communicating with the oil passage; a filter assembly disposed in the oil passage; and a self-cleaning assembly rotatably disposed on the side of the filter assembly near the oil inlet, and the self-cleaning assembly abutting against the filter assembly. The self-cleaning assembly rotates under the drive of oil flowing from the oil inlet to the oil outlet to scrape off impurities adhering to the filter assembly. The oil filter of this invention, by incorporating a self-cleaning assembly that automatically rotates under the drive of oil flow, achieves continuous scraping of impurities from the surface of the filter assembly, maintaining the filter assembly's unobstructed flow without disassembly, thus solving the technical problem of easy clogging of filter screens in the prior art.

Description

Technical Field

[0001] This invention relates to the field of filter technology, and more particularly to an oil filter and an automobile. Background Technology

[0002] In the lubrication system of an automobile engine, the oil strainer is installed at the front end of the oil pump to intercept large particles of impurities in the oil before it enters the oil pump. It is the first line of defense to protect the precision components inside the engine from wear. The filtration efficiency of the oil strainer directly affects the lubrication effect and service life of the engine.

[0003] Currently, existing oil strainers typically use a fixed filter screen structure, where impurities are trapped on the screen surface as the oil passes through. However, these strainers generally lack an effective screen cleaning mechanism. Over time, impurities gradually accumulate on the screen surface, easily leading to clogging. This necessitates manual cleaning after disassembly, making maintenance inconvenient. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an oil filter and automobile to solve the technical problem that existing oil filters generally lack an effective filter cleaning mechanism. During long-term use, impurities on the filter surface will gradually accumulate, which can easily lead to filter blockage. The filter needs to be disassembled and manually cleaned, which is inconvenient to maintain.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides an oil filter, comprising: a housing assembly having an oil passage and an oil inlet and an oil outlet communicating with the oil passage; a filter assembly disposed in the oil passage; and a self-cleaning assembly rotatably disposed on the side of the filter assembly near the oil inlet, wherein the self-cleaning assembly abuts against the filter assembly, and the self-cleaning assembly rotates under the drive of oil flowing from the oil inlet to the oil outlet to scrape off impurities adhering to the filter assembly.

[0006] In some embodiments, the filtration assembly includes a support plate and a first filter screen, the first filter screen being disposed on the side of the support plate near the oil inlet, and the self-cleaning assembly abutting against the first filter screen.

[0007] In some embodiments, the support plate is provided with an oil passage, and the oil passage and the oil inlet are spaced apart along the rotation direction of the self-cleaning assembly.

[0008] In some embodiments, the filter assembly further includes a cleaning plate connected to the first filter screen, and the self-cleaning assembly contacts both the cleaning plate and the first filter screen during rotation.

[0009] In some embodiments, the filter assembly further includes a second filter screen disposed on the side of the support plate near the oil outlet; the mesh size of the second filter screen is not larger than that of the first filter screen.

[0010] In some embodiments, the self-cleaning assembly includes a rotating shaft and a plurality of scrapers, the rotating shaft being rotatably disposed through the filter assembly and / or the housing assembly, and the plurality of scrapers being circumferentially connected to the rotating shaft.

[0011] In some embodiments, the scraper includes a scraping portion, an elastic portion, and a mounting portion, the mounting portion being fixedly connected to the rotating shaft, the scraping portion being disposed on the side of the mounting portion facing the filter assembly and abutting against the filter assembly, the elastic portion being disposed between the scraping brush and the mounting portion; and / or, the scraper is fan-shaped.

[0012] In some embodiments, the housing assembly includes an oil inlet housing and an oil outlet housing, the oil inlet housing and the oil outlet housing being detachably connected and enclosing each other to form the oil passage, the oil inlet being disposed in the oil inlet housing and the oil outlet being disposed in the oil outlet housing.

[0013] In a second aspect, the present invention provides an automobile, comprising: the oil filter described in the first aspect, an oil storage device, an oil pump, and a guide pipe; the oil inlet is connected to the oil storage device, the oil outlet is connected to one end of the guide pipe, and the other end of the guide pipe is connected to the oil pump.

[0014] In some embodiments, the flow channel formed by the flow guide tube has at least one bend.

[0015] The oil filter of the present invention, by setting a self-cleaning component and making it rotate automatically under the drive of oil flow, realizes the continuous scraping of impurities on the surface of the filter component, and keeps the filter component unobstructed without disassembly, thus solving the technical problem of easy clogging of the filter screen in the prior art.

[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below. Attached Figure Description

[0017] Figure 1 This is a first exploded view of the oil filter according to an embodiment of the present invention; Figure 2 This is a second exploded view of the oil filter according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the oil filter in an embodiment of the present invention; Figure 4 This is a schematic diagram of the self-cleaning component in the oil filter according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the first assembly structure of the oil filter and guide pipe in an automobile according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the second assembly structure of the oil filter and guide pipe in an automobile according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 100. Oil strainer; 110. Housing assembly; 111. Oil inlet housing; 1111. Oil inlet port; 112. Oil outlet housing; 1121. Oil outlet port; 113. Intermediate housing; 1131. Pulley; 120. Filter assembly; 121. First filter screen; 122. Support plate; 1221. Oil passage section; 1222. Limiting block; 123. Cleaning plate; 124. Second filter screen; 130. Self-cleaning assembly; 131. Rotating shaft; 132. Scraper; 1321. Scraper part; 1322. Elastic part; 1323. Mounting part; 200. Guide pipe; 210. Bending part. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the lubrication system of an automobile engine, the oil strainer is installed at the front end of the oil pump to intercept large particles of impurities in the oil before it enters the oil pump. It is the first line of defense to protect the precision components inside the engine from wear. The filtration efficiency of the oil strainer directly affects the lubrication effect and service life of the engine.

[0022] Currently, existing oil strainers typically use a fixed filter screen structure, where impurities are trapped on the screen surface as the oil passes through. However, these strainers generally lack an effective screen cleaning mechanism. Over time, impurities gradually accumulate on the screen surface, easily leading to clogging. This necessitates manual cleaning after disassembly, making maintenance inconvenient.

[0023] Please see Figures 1-3In a first aspect, the present invention provides an oil filter 100, comprising: a housing assembly 110 having an oil passage and an oil inlet 1111 and an oil outlet 1121 communicating with the oil passage; a filter assembly 120 disposed in the oil passage; and a self-cleaning assembly 130 rotatably disposed on the side of the filter assembly 120 near the oil inlet 1111, and the self-cleaning assembly 130 abutting against the filter assembly 120, the self-cleaning assembly 130 rotating under the drive of oil flowing from the oil inlet 1111 to the oil outlet 1121 to scrape off impurities adhering to the filter assembly 120.

[0024] For example, the housing assembly 110 is an external structural component of the oil strainer 100, forming an internal space to accommodate the filter assembly 120 and the self-cleaning assembly 130, and providing interfaces for oil inflow and outflow. The housing assembly 110 is provided with an oil inlet 1111 and an oil outlet 1121. The oil inlet 1111 is used to connect to an oil storage device, and the oil outlet 1121 is used to connect to an oil pump. Oil enters the housing assembly 110 from the oil inlet 1111, is filtered, and then flows out from the oil outlet 1121.

[0025] For example, the filter assembly 120 is disposed in the oil passage inside the housing assembly 110 to intercept impurities carried in the oil. The filter assembly 120 has a filter surface, on which impurities are intercepted and adhered as the oil passes.

[0026] For example, the self-cleaning component 130 is rotatably disposed on the side of the filter assembly 120 near the oil inlet 1111, and the self-cleaning component 130 abuts against the filter assembly 120. When engine oil enters the housing assembly 110 from the oil inlet 1111 and flows towards the oil outlet 1121, the kinetic energy of the oil flow drives the self-cleaning component 130 to rotate around its rotation axis 131. During the rotation, the self-cleaning component 130 continuously contacts the filter surface of the filter assembly 120, scraping off the impurities attached to the filter assembly 120, causing the impurities to detach from the filter surface, thereby keeping the filter assembly 120 unobstructed.

[0027] It is understandable that engine oil circulates in the engine lubrication system, playing important roles in lubrication, cooling, cleaning, and rust prevention. During engine operation, engine oil inevitably carries in impurities such as metal shavings, carbon deposits, and dust. If these impurities are not filtered and removed in time, they will accelerate the wear of precision internal engine components, affecting engine performance and lifespan. This embodiment, by incorporating a self-cleaning component 130 that automatically rotates under the drive of engine oil flow, achieves continuous scraping of impurities from the surface of the filter component 120. This keeps the filter component 120 unobstructed without disassembly, solving the technical problem of easy clogging of filters in existing technologies.

[0028] In some embodiments, the filter assembly 120 includes a support plate 122 and a first filter screen 121, the first filter screen 121 being disposed on the side of the support plate 122 near the oil inlet 1111, and the self-cleaning assembly 130 abutting against the first filter screen 121.

[0029] For example, to prevent the first filter screen 121 from deforming or shifting under the impact of oil flow and the contact pressure of the self-cleaning component 130, which could lead to the failure of the contact relationship between the first filter screen 121 and the self-cleaning component 130 and the inability of the self-cleaning component 130 to effectively remove impurities, the support plate 122 in this embodiment is disposed on the side of the first filter screen 121 away from the oil inlet 1111. This provides support for the first filter screen 121, ensuring that it remains flat under pressure and maintains stable contact with the self-cleaning component 130, thereby ensuring the reliability of the self-cleaning function. For example, the support plate 122 can be made of metal or hard plastic.

[0030] For example, the first filter 121 may be a mesh structure with uniformly distributed filter holes for intercepting impurities carried in the engine oil.

[0031] For example, the support plate 122 can be fixedly connected to the housing assembly 110, or it can be detachably connected to the housing assembly 110. For instance, the inner wall of the housing assembly 110 forming the oil passage is provided with an annular groove, and the edge of the support plate 122 is embedded in the annular groove to achieve axial restraint, thereby achieving a detachable connection and facilitating the replacement of the first filter screen 121 during subsequent maintenance. Alternatively, the support plate 122 and the housing assembly 110 can be fixedly connected by welding or integral molding to improve structural strength and sealing. For example, the first filter screen 121 can be fixedly connected to the support plate 122 and / or the housing assembly 110.

[0032] In some embodiments, the support plate 122 is provided with an oil passage 1221, and the oil passage 1221 and the oil inlet 1111 are spaced apart along the rotation direction of the self-cleaning assembly 130.

[0033] For example, the oil passage 1221 and the oil inlet 1111 are spaced apart along the rotation direction of the self-cleaning assembly 130, meaning that the oil passage 1221 and the oil inlet 1111 are circumferentially offset, rather than directly opposite each other. Specifically, when engine oil enters from the oil inlet 1111, it will flow circumferentially in the area between the oil inlet 1111 and the oil passage 1221 to form a swirling flow, thereby driving the self-cleaning assembly 130 to rotate around its rotation axis 131.

[0034] For example, multiple oil passages 1221 and multiple oil inlets 1111 are provided, and the multiple oil passages 1221 and multiple oil inlets 1111 are alternately arranged along the rotation direction of the self-cleaning assembly 130. For example, four oil passages 1221 are evenly distributed on the support plate 122, and four oil inlets 1111 are provided accordingly, and the two are arranged alternately along the circumference.

[0035] For example, the oil passage 1221 is provided with one or more oil passage holes that penetrate the support plate 122, and the oil passage holes are used to allow the oil filtered by the first filter screen 121 to pass through.

[0036] It is understood that in this embodiment, by setting the oil passage 1221 and the oil inlet 1111 at intervals along the rotation direction of the self-cleaning component 130, the oil is forced to flow circumferentially between the oil inlet 1111 and the oil passage 1221, forming a vortex that drives the self-cleaning component 130 to rotate, so that the self-cleaning component 130 can operate continuously without external energy.

[0037] In some embodiments, the filter assembly 120 further includes a cleaning plate 123, which is connected to the first filter screen 121 and comes into contact with both the cleaning plate 123 and the first filter screen 121 during the rotation of the self-cleaning assembly 130.

[0038] For example, the cleaning plate 123 has rough textures on the side facing the self-cleaning component 130. Its working principle is to use the friction between the rough textures and the self-cleaning component 130 to remove impurities attached to the self-cleaning component 130, so that the self-cleaning component 130 is clean again after rotating past the cleaning plate 123, thus maintaining the efficient scraping ability of the self-cleaning component 130. For example, the cleaning plate 123 can be made of hard plastic or metal, and its surface roughness needs to be calibrated to ensure sufficient friction to remove oil stains without excessively abrading the self-cleaning component 130.

[0039] For example, the first filter 121 has a first mounting groove on the side facing the self-cleaning assembly 130, and the cleaning plate 123 is embedded in the first mounting groove. By embedding the cleaning plate 123 into the mounting groove of the first filter 121, a fixed connection between the cleaning plate 123 and the first filter 121 is achieved. Simultaneously, the surface of the cleaning plate 123 is substantially flush with the surface of the first filter 121, ensuring that the self-cleaning assembly 130 can smoothly pass through the first filter 121 and the cleaning plate 123 sequentially during rotation, avoiding steps or jamming. For example, the cleaning plate 123 has a second mounting groove on the side facing the self-cleaning assembly 130, and the first filter 121 is embedded in the second mounting groove. That is, the cleaning plate 123 serves as the base, and the first filter 121 is embedded in the second mounting groove of the cleaning plate 123, which also achieves a fixed connection between the cleaning plate 123 and the first filter 121. This installation method is suitable for scenarios where the cleaning plate 123 has a large area and high structural strength.

[0040] Understandably, during the rotation of the self-cleaning component 130, when the self-cleaning component 130 comes into contact with the first filter screen 121, the self-cleaning component 130 scrapes off the impurities attached to the surface of the first filter screen 121; when the self-cleaning component 130 rotates to contact the cleaning plate 123, the cleaning plate 123 uses the rough texture of its surface to peel off the impurities accumulated on the self-cleaning component 130, so that the self-cleaning component 130 is clean, effectively preventing the self-cleaning component 130 from losing its scraping ability due to too many impurities attached to itself, and extending the effective working time of the self-cleaning component 130.

[0041] In some embodiments, the filter assembly 120 further includes a second filter screen 124, which is disposed on the side of the support plate 122 near the oil outlet 1121; the mesh size of the second filter screen 124 is not larger than the mesh size of the first filter screen 121.

[0042] For example, the first filter 121, as a primary filtration layer, is disposed on the side of the support plate 122 near the oil inlet 1111. It is used to intercept large particulate impurities carried in the engine oil. Its mesh size is relatively large to maintain low flow resistance while ensuring filtration effect. For example, the second filter 124, as a secondary filtration layer, is disposed on the side of the support plate 122 near the oil outlet 1121. That is, the engine oil filtered by the first filter 121 needs to pass through the second filter 124 before flowing to the oil outlet 1121. The mesh size of the second filter 124 is no larger than that of the first filter 121, that is, the filtration accuracy of the second filter 124 is no less than that of the first filter 121. It is used to intercept fine impurities that still remain after passing through the first filter 121, further improving the cleanliness of the engine oil.

[0043] It is understood that this embodiment forms a two-stage filtration structure by setting a second filter 124 with a mesh size no larger than that of the first filter 121. The first filter 121 is responsible for intercepting large particulate impurities and, together with the self-cleaning component 130, achieves automatic cleaning; the second filter 124 further refines the oil filtered by the first filter 121, intercepting even finer impurities. While ensuring the effectiveness of the self-cleaning function, it improves the overall filtration accuracy, making the oil entering the oil pump cleaner, thereby more effectively protecting the precision components inside the engine.

[0044] Please see Figure 4 In some embodiments, the self-cleaning assembly 130 includes a rotating shaft 131 and a plurality of scrapers 132, the rotating shaft 131 being rotatably disposed through the filter assembly 120 and / or the housing assembly 110, and the plurality of scrapers 132 being circumferentially connected to the rotating shaft 131.

[0045] For example, a rotating shaft 131 is rotatably inserted through the first filter screen 121 and the support plate 122, and is rotatably connected to the support plate 122. For example, a bearing may be provided between the rotating shaft 131 and the support plate 122 to reduce rotational friction and allow the rotating shaft 131 to rotate flexibly. For example, a limiting block 1222 is provided on the side of the support plate 122 opposite to the first filter screen 121. The limiting block 1222 is used to limit the axial displacement of the rotating shaft 131 and prevent it from dislodging from the support plate 122.

[0046] For example, multiple scraper strips 132 are uniformly or non-uniformly connected to the outer bottom end of the rotating shaft 131 in a circumferential direction, and rotate together with the rotating shaft 131. For example, the number of scraper strips 132 can be determined according to the size and filtration area of ​​the filter, for example, three or four sets of scraper strips 132 are provided, distributed in an arc or straight line. For example, the scraper strips 132 abut against the surface of the first filter screen 121 of the filter assembly 120, and their rotation path covers all or most of the area of ​​the first filter screen 121 facing the self-cleaning assembly 130, to ensure comprehensive scraping of the surface of the first filter screen 121.

[0047] Understandably, when the engine oil enters from the oil inlet 1111 and forms a swirling flow between the oil inlet 1111 and the oil passage 1221, the swirling flow impacts the scraper 132 to generate driving force, which drives the rotating shaft 131 and the scraper 132 to rotate together. During the rotation, the scraper 132 continuously contacts the surface of the first filter screen 121, scraping off the impurities attached to the surface of the first filter screen 121 and causing the impurities to detach from the surface of the first filter screen 121.

[0048] In some embodiments, the scraper 132 includes a scraping portion 1321, an elastic portion 1322, and a mounting portion 1323. The mounting portion 1323 is fixedly connected to the rotating shaft 131. The scraping portion 1321 is disposed on the side of the mounting portion 1323 facing the filter assembly 120 and abuts against the filter assembly 120. The elastic portion 1322 is disposed between the scraping brush and the mounting portion 1323. And / or, the scraper 132 is fan-shaped.

[0049] For example, the scraper 1321 is the part of the scraper 132 that directly contacts the filter assembly 120, and is used to scrape the surface of the filter assembly 120 during rotation. For example, the scraper 1321 can be made of a material with a certain degree of flexibility and wear resistance, such as rubber, polyurethane, or soft plastic, to avoid damaging the filter screen during scraping. For example, the scraper 1321 can be in the shape of a sheet or bristles, and its edge in contact with the filter assembly 120 should be flat to ensure scraping effectiveness.

[0050] For example, the elastic part 1322 provides elastic preload to the scraper part 1321, ensuring that the scraper part 1321 remains in close contact with the filter assembly 120 during rotation. For example, the elastic part 1322 can be in the form of a spring, an elastic rubber block, or an elastic metal sheet. The presence of the elastic part 1322 allows the scraper part 1321 to adaptively conform to the surface of the filter assembly 120, maintaining good contact pressure even when encountering uneven areas, thereby improving the scraping effect. For example, the elastic part 1322 is encapsulated between the scraper part 1321 and the mounting part 1323. In order to prevent impurities in the engine oil from entering the interior of the elastic part 1322 and causing the elastic part 1322 to become stuck or fail, a flexible filter screen can be provided in the gap between the scraper part 1321 and the mounting part 1323 to wrap or shield the elastic part 1322. The flexible filter screen can be made of materials such as nylon or polyester fiber, and its mesh size is smaller than the particle size of impurities in the engine oil. It can effectively block impurities from entering the space where the elastic part 1322 is located, while not affecting the extension and retraction movement of the elastic part 1322 and the floating of the scraper part 1321.

[0051] For example, the mounting part 1323 is the portion of the scraper 132 that is fixedly connected to the rotating shaft 131, and is used to install the scraper 132 as a whole onto the rotating shaft 131. For example, the mounting part 1323 can be made of rigid plastic or metal to ensure connection strength. For example, the mounting part 1323 and the rotating shaft 131 can be fixedly connected by means of injection molding, screw fastening, snap-fit ​​connection or welding.

[0052] For example, the fan-shaped scraper 132 refers to the overall shape of the scraper 132 being similar to a fan blade, with a twist angle and curved surface curvature, which allows the scraper 132 to generate a larger frontal area in the oil flow, thereby more effectively capturing the flow kinetic energy of the oil and improving the rotational driving force of the self-cleaning component 130.

[0053] It is understood that in this embodiment, the scraper 132, through the elastic portion 1322, ensures that the scraper portion 1321 always maintains close contact with the filter assembly 120, guaranteeing the scraping effect even when the surface of the filter assembly 120 is uneven or worn. Simultaneously, the fan-shaped design of the scraper 132 improves oil drive efficiency, enabling the self-cleaning assembly 130 to obtain sufficient rotational driving force even at lower oil flow rates, thus achieving reliable automatic cleaning under various operating conditions.

[0054] like Figure 1 and Figure 2 As shown, in some embodiments, the housing assembly 110 includes an oil inlet housing 111 and an oil outlet housing 112. The oil inlet housing 111 and the oil outlet housing 112 are detachably connected and enclose each other to form an oil passage. The oil inlet 1111 is disposed in the oil inlet housing 111, and the oil outlet 1121 is disposed in the oil outlet housing 112.

[0055] For example, the housing assembly 110 also includes an intermediate housing 113, with an oil inlet housing 111 and an oil outlet housing 112 respectively connected to both ends of the intermediate housing 113. The intermediate housing 113 and the oil outlet housing 112 are connected by threads. A lever 1131 is provided on the outer periphery of the intermediate housing 113. An operator can rotate the intermediate housing 113 using the lever 1131 to loosen the threaded connection between the intermediate housing 113 and the oil outlet housing 112, thereby separating the housing assembly 110. The intermediate housing 113 and the oil inlet housing 111 can be connected by a snap-fit ​​method or be a single integrated structure. The filter assembly 120 can be fixedly connected to the inner wall of the intermediate housing 113. When the intermediate housing 113 is separated from the oil outlet housing 112, the filter assembly 120 can be removed along with the intermediate housing 113, facilitating cleaning or replacement of the filter assembly 120.

[0056] For example, the intermediate shell 113 and the oil inlet shell 111 can also be detachably connected by threaded or bolted connection, so that the oil inlet shell 111, intermediate shell 113 and oil outlet shell 112 can all be separated, which facilitates a thorough cleaning of the inside of the shell assembly 110.

[0057] It is understood that in this embodiment, by setting an intermediate shell 113 as a connector between the oil inlet shell 111 and the oil outlet shell 112, and connecting the filter assembly 120 to the intermediate shell 113, when it is necessary to maintain the filter assembly 120, it is only necessary to rotate the intermediate shell 113 by using the toggle block 1131 to separate it from the oil outlet shell 112, and the intermediate shell 113 and the filter assembly 120 can be taken out together, which simplifies the maintenance operation.

[0058] In some embodiments, the oil inlet 1111 and the oil outlet 1121 are respectively disposed at both ends of the axial direction of the rotating shaft 131 of the self-cleaning assembly 130, the axis of the oil outlet 1121 coincides with the axis of the rotating shaft 131, and the oil inlet 1111 is arranged at intervals around the axis of the rotating shaft 131.

[0059] Understandably, since the oil inlets 1111 are arranged at intervals around the axis of the rotating shaft 131, the oil enters the oil passage from multiple positions at the same time, which further enhances the swirling effect of the oil in the oil passage and is conducive to the smooth rotation of the self-cleaning component 130.

[0060] Please see Figure 5 and Figure 6 Secondly, the present invention provides an automobile, comprising: an oil filter 100 as described in the first aspect, an oil storage device, an oil pump, and a guide pipe 200; an oil inlet 1111 is connected to the oil storage device, an oil outlet 1121 is connected to one end of the guide pipe 200, and the other end of the guide pipe 200 is connected to the oil pump.

[0061] For example, the oil storage device is used to store the engine oil required by the engine lubrication system. In this embodiment, the oil storage device can be an oil pan, which is installed at the bottom of the engine or transmission to collect and store the returned oil and provide a stable oil source for the oil pump. For example, the oil inlet 1111 of the oil strainer 100 is immersed in the oil in the oil pan. When the oil pump is working, the oil enters the strainer through the oil inlet 1111, is filtered, and flows out from the oil outlet 1121. It then enters the oil pump through the guide pipe 200 and is pressurized by the oil pump and delivered to various lubrication points of the engine.

[0062] In some embodiments, the flow channel formed by the flow guide tube 200 has at least one bend 210.

[0063] For example, the bend 210 refers to the turning area where the guide tube 200 changes direction in the extension direction, making the guide tube 200 as a whole non-linear shape. For example, the bend 210 can be an arc-shaped bend or an angled bend, and its bending angle is usually between 90 degrees and 180 degrees, such as 90 degrees, 110 degrees, 130 degrees, 150 degrees or 180 degrees.

[0064] For example, in this embodiment, the guide pipe 200 has two bends 210, making the guide pipe 200 a three-section bend structure. The first bend 210 is close to the oil outlet 1121 of the filter, and the second bend 210 is close to the oil suction end of the oil pump. For example, the three-section bend structure of the guide pipe 200 can effectively guide the oil from the filter to the oil pump, while reducing oil flow resistance, avoiding turbulence, and improving the oil guiding efficiency.

[0065] Understandably, the bend 210 in the guide pipe 200 allows it to adapt to the complex spatial layout of the engine compartment, while reducing oil flow resistance and ensuring smooth oil flow, thereby guaranteeing the stability of the oil pump's oil supply.

[0066] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0070] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0071] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. An oil filter, characterized in that, include: The housing assembly has an oil passage, and an oil inlet and an oil outlet communicating with the oil passage; A filter assembly is disposed in the oil passage; A self-cleaning component is rotatably disposed on the side of the filter assembly near the oil inlet, and the self-cleaning component abuts against the filter assembly. The self-cleaning component rotates under the drive of oil flowing from the oil inlet to the oil outlet to scrape off impurities adhering to the filter assembly.

2. The oil filter according to claim 1, characterized in that, The filter assembly includes a support plate and a first filter screen, the first filter screen being disposed on the side of the support plate near the oil inlet, and the self-cleaning component abutting against the first filter screen.

3. The oil filter according to claim 2, characterized in that, The support plate is provided with an oil passage, and the oil passage and the oil inlet are spaced apart along the rotation direction of the self-cleaning component.

4. The oil filter according to claim 2, characterized in that, The filter assembly also includes a cleaning plate, which is connected to the first filter screen. The self-cleaning assembly comes into contact with both the cleaning plate and the first filter screen during rotation.

5. The oil filter according to claim 2, characterized in that, The filter assembly further includes a second filter screen, which is disposed on the side of the support plate near the oil outlet; the mesh size of the second filter screen is not larger than that of the first filter screen.

6. The oil filter according to any one of claims 1-5, characterized in that, The self-cleaning component includes a rotating shaft and a plurality of scrapers. The rotating shaft is rotatably disposed through the filter component and / or the housing component, and the plurality of scrapers are circumferentially connected to the rotating shaft.

7. The oil filter according to claim 6, characterized in that, The scraper includes a scraping part, an elastic part, and a mounting part. The mounting part is fixedly connected to the rotating shaft. The scraping part is disposed on the side of the mounting part facing the filter assembly and abuts against the filter assembly. The elastic part is disposed between the scraping brush and the mounting part. And / or, the scraper is fan-shaped.

8. The oil filter according to any one of claims 1-5, characterized in that, The housing assembly includes an oil inlet housing and an oil outlet housing. The oil inlet housing and the oil outlet housing are detachably connected and enclose each other to form the oil passage. The oil inlet is located in the oil inlet housing and the oil outlet is located in the oil outlet housing.

9. A car, characterized in that, include: The oil strainer according to any one of claims 1-8, as well as the oil storage device, oil pump, and guide pipe; The oil inlet is connected to the oil storage device, the oil outlet is connected to one end of the guide pipe, and the other end of the guide pipe is connected to the oil pump.

10. The automobile according to claim 9, characterized in that, The flow channel formed by the flow guide tube has at least one bend.

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