Oil sump structure assembly and vehicle

Abstract

The application provides an oil sump structure assembly and a vehicle, and belongs to the technical field of lubricating systems. The secondary oil sump is arranged, so that enough lubricating oil can be reserved in the secondary oil sump under various road conditions, the oil collector can be used for extraction, the problem of insufficient lubricating oil of the engine when climbing on a large slope road is effectively improved. The detachable connection between the secondary oil sump and the primary oil sump is achieved, so that the primary oil sump and the secondary oil sump can be maintained and replaced respectively during maintenance, the maintenance convenience is good, and the maintenance cost is relatively low. The length size of the docking opening is controlled, the trend of the lubricating oil flowing out of the secondary oil sump is buffered, the lubricating oil is prevented from flowing out of the secondary oil sump quickly and in a large amount, and it is ensured that enough lubricating oil is reserved in the secondary oil sump during climbing. The oil baffle is arranged, the violent shaking of the oil is reduced, and the mixing of the lubricating oil and air to form foam is avoided.

Description

Technical Field

[0001] This application belongs to the field of lubrication system technology, and more specifically, relates to an oil pan structure assembly and a vehicle. Background Technology

[0002] Lubricating oil is essential for the normal operation of an engine, primarily because: 1) it reduces the coefficient of friction, decreasing frictional resistance and wear, thus improving engine reliability and durability; 2) its continuous flow helps to flush away dirt from the working surfaces of engine parts; 3) it carries heat back to the oil pan and dissipates it into the air, aiding in engine cooling; 4) when engine cylinder pressure rises sharply, the lubricating effect of the oil helps engine components withstand impact loads, acting as a buffer; 5) it forms a seal between the piston rings and the piston, reducing gas leakage and preventing external contaminants from entering; and 6) it adheres to the surfaces of parts, preventing water, air, acidic substances, and harmful gases from contacting them, thus preventing rust and corrosion.

[0003] The engine oil pan is a crucial component for storing lubricating oil. The oil in the oil pan is drawn out by the oil pump and delivered to the various friction surfaces of the engine through the oil filter, thus achieving the aforementioned effects. Subsequently, the lubricating oil flows back into the engine oil pan, completing a circulation process. Therefore, the design of the engine oil pan is essential for ensuring the normal operation of the engine and improving its reliability and durability.

[0004] When climbing steep roads, existing engine oil pans are prone to insufficient lubrication. This can lead to minor issues like engine overheating and seal failure causing oil leaks, or more serious problems like insufficient lubrication between parts, resulting in mechanical wear due to impurities and foreign objects, and ultimately causing the engine to fail due to bearing seizure or bearing damage. Utility Model Content

[0005] The purpose of this application is to provide an oil pan structure assembly and a vehicle, which aims to solve the problem of insufficient engine lubrication when climbing steep roads due to unreasonable engine oil pan design in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, embodiments of this application provide an oil pan structure assembly, comprising: The main oil pan has a through-hole opening at the bottom. The auxiliary oil pan is located below the docking opening and is detachably connected to the lower side of the main oil pan. The volume of the main oil pan is larger than that of the auxiliary oil pan. An oil collector is located inside the main oil pan, with its collecting end passing through the docking opening and extending into the inner cavity of the auxiliary oil pan.

[0007] In the existing technology, due to the internal layout limitations of the engine compartment, components such as the steering system and the front main reduction gear system are located at the bottom of the oil pan. The depth of the oil pan is compressed, and the bottom of the oil pan is relatively flat, presenting a shallow basin structure. When going uphill or downhill at a large angle, the oil concentrates at the front or rear of the oil pan, making it difficult for the oil collection device to extract the lubricating oil from the oil pan, which can easily lead to the problem of insufficient lubricating oil in the engine.

[0008] To address the aforementioned technical problems, the solution presented in this application, compared to existing technologies, includes a smaller auxiliary oil pan at the bottom of the main oil pan. This auxiliary oil pan serves to assist in containing lubricating oil, and the oil collector directly extends into the auxiliary oil pan to extract lubricating oil. On flat roads, both the main and auxiliary oil pans are filled with lubricating oil, with the auxiliary oil pan completely filled. The oil collector's collection end can directly extract lubricating oil from the auxiliary oil pan. During steep uphill or downhill climbs, the lubricating oil does not flow out of the auxiliary oil pan rapidly; a certain amount of lubricating oil remains in the auxiliary oil pan, from which the oil collector can smoothly extract lubricating oil until the climb is complete. Therefore, the oil pan assembly of this application ensures sufficient lubricating oil remains in the auxiliary oil pan under various road conditions, facilitating extraction by the oil collector and effectively improving the problem of insufficient engine lubricating oil during steep uphill climbs.

[0009] In addition, since the auxiliary oil pan and the main oil pan are detachably connected, the main oil pan and the auxiliary oil pan can be maintained and replaced separately during maintenance, which makes maintenance convenient and the maintenance cost is also low.

[0010] In conjunction with the first aspect, in one possible implementation, the length of the mating opening is less than the length of the inner cavity of the secondary oil sump in the longitudinal direction of the main oil sump.

[0011] In the above technical solution, by controlling the length of the docking opening to make it relatively small, the tendency of lubricating oil to flow out of the auxiliary oil pan is buffered, preventing the lubricating oil from flowing out of the auxiliary oil pan quickly and in large quantities, and ensuring that sufficient lubricating oil is always present in the auxiliary oil pan during the climbing process.

[0012] In conjunction with the first aspect, in one possible implementation, the width of the mating opening is smaller than the width of the main oil sump in the width direction. The width of the docking opening is greater than the length of the docking opening, and the width of the auxiliary oil pan is greater than the length of the auxiliary oil pan; The docking opening is provided with a plurality of main support ribs, which are supported between the two long sides of the docking opening. The plurality of main support ribs are distributed at intervals along the width direction of the docking opening. The collecting end of the oil collector passes through the space between two adjacent main support ribs.

[0013] In the above technical solution, since the width of the mating opening is greater than the length of the mating opening, a sufficiently large flow channel is formed, so that the lubricating oil flows more smoothly from the main oil pan to the auxiliary oil pan, avoiding excessive oil pressure difference on both sides of the mating opening and avoiding adverse phenomena such as eddies that affect the stability of the lubricating oil.

[0014] In conjunction with the first aspect, in one possible implementation, the main oil pan is further provided with an oil baffle, and the docking opening and the oil collector are both located below the oil baffle.

[0015] In the above technical solution, an oil baffle is installed to physically block the oil, reducing violent sloshing and preventing the lubricating oil from mixing with air to form foam. Furthermore, since the oil baffle covers the space above the docking opening, it buffers the tendency for oil to flow out of the secondary oil pan, further preventing the problem of rapid oil leakage from the secondary oil pan.

[0016] In some embodiments, the oil collector has an extension section and a collection section, the extension section extending along the length of the main oil pan, the collection section being connected to one end of the extension section and extending downward, the collection section forming the collection end, and the extension section being located below the top opening of the main oil pan; The oil baffle includes a sunken baffle and two inclined baffles respectively connected to both sides of the sunken baffle. In the direction from the inside to the outside, the inclined baffles gradually tilt upward, and the extension section is connected to the sunken baffle.

[0017] In the aforementioned technical solution, the oil collector is designed in an L-shape to ensure that the collection end remains immersed in the oil during vehicle acceleration, braking, or incline. The L-shaped structure maintains more stable oil suction than a straight oil suction pipe and can also work with the oil baffle to further separate air bubbles. The oil collector can also bypass the oil baffle, reinforcing ribs, or other components within the main oil pan, reducing flow resistance and making it more suitable for space-constrained oil pan designs, fully utilizing the internal space of the main oil pan. Furthermore, the angled baffle design makes it easier for oil to slide down the slope, reducing the risk of impurities adhering. The angled baffle also provides reinforcement, improving the overall deformation resistance of the oil baffle and ensuring the stability of the oil baffle structure in the high-temperature environment surrounding the engine.

[0018] In some embodiments, the upper side of the extension section forms an upper opening, and a collection connection pipe is integrally connected to the sinking baffle. The lower side of the collection connection pipe has a lower opening that aligns with the upper opening of the extension section, and the collection connection pipe can also be connected to an external pipe.

[0019] In the above technical solution, the collection and connection pipe is designed to be integrated with the oil baffle, realizing the integration of collection and oil baffle functions, and further improving the compactness of the oil baffle and oil collector in the vertical direction, so as to adapt to the scenario where the height space of the main oil pan is compressed.

[0020] In some embodiments, a filter element is provided at the upper opening of the extension section to filter lubricating oil flowing from the extension section to the collection connection pipe.

[0021] In the above technical solution, the filter removes particulate matter and other substances, ensuring the purity of the extracted lubricating oil and preventing wear of internal engine parts due to particulate matter in the lubricating oil.

[0022] In some embodiments, the oil baffle further includes two reinforcing end plates, which are respectively connected to both ends of the sunken baffle, and the reinforcing end plates are also connected to the inclined baffles on both sides; The collection connection pipe extends along the length of the main oil sump, and the oil outlet end penetrates the reinforcing end plate.

[0023] In the above technical solution, the reinforcement end plate makes the oil baffle plate form a box-shaped structure, which has good pressure bearing capacity in the vertical direction and multi-directional torsional resistance, further improving the structural strength of the oil baffle plate and ensuring that the oil baffle plate remains structurally stable after being impacted by oil.

[0024] In conjunction with the first aspect, in one possible implementation, a connecting boss extending circumferentially along the lower side of the docking opening is provided, and the auxiliary oil pan is detachably connected to the connecting boss; the docking opening is located at the end of the main oil pan, a portion of the connecting boss extends beyond the outer peripheral wall of the main oil pan, and the extended portion is sealed to the main oil pan by an extension sealing plate.

[0025] The above technical solution achieves the avoidance of components below the main oil pan, and the protruding part is sealed to the main oil pan through an extension sealing plate to ensure the airtightness of the space between the main oil pan and the auxiliary oil pan.

[0026] Secondly, embodiments of this application also provide a vehicle including the aforementioned oil pan structure assembly.

[0027] The solution shown in this application embodiment, compared with the prior art, improves the problem of insufficient engine lubrication when climbing steep roads by adopting the above-mentioned oil pan structure assembly, thereby enhancing the vehicle's climbing ability. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 Three-dimensional representation of the oil pan structure assembly provided in the embodiments of this application Figure 1 ; Figure 2 Three-dimensional representation of the oil pan structure assembly provided in the embodiments of this application Figure 2 ; Figure 3 A top view of the oil pan structure assembly provided in an embodiment of this application; Figure 4 for Figure 3 AA section view; Figure 5 for Figure 4 Enlarged view of part B; Figure 6 This is a top view of the main oil pan used in the embodiments of this application; Figure 7 Three-dimensional representation of the oil pan structure assembly provided in the embodiments of this application Figure 3 ; Figure 8 This is an assembly perspective view of the auxiliary oil pan, oil collector, and oil baffle used in the embodiments of this application; Figure 9 Explosive decomposition of the oil collector, filter, and oil baffle used in the embodiments of this application. Figure 1 ; Figure 10 Explosive decomposition of the oil collector, filter, and oil baffle used in the embodiments of this application. Figure 2 .

[0030] In the diagram: 100, main oil pan; 101, docking opening; 110, connecting boss; 120, extension sealing plate; 200, auxiliary oil pan; 300, oil collector; 310, extension section; 311, positioning step groove; 312, upper opening; 320, collection section; 400, drain plug; 500, main support rib; 600, oil baffle; 610, recessed baffle; 611, oil stabilizing through hole; 620, inclined baffle; 621, reinforcing drawn rib; 630, connecting baffle; 640, baffle reinforcing rib; 650, connecting flange; 651, connecting lug; 660, collection connecting pipe; 661, first pipe section; 662, second pipe section; 613, positioning protrusion ring; 614, lower opening; 670, reinforcing end plate; 700, filter element. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0032] It should be noted that when a component is referred to as being "set on" another component, it can be directly on the other component or indirectly on that other component.

[0033] It should be noted that the terms "front" and "rear" correspond to the front-rear direction of the vehicle body, the terms "up" and "down" correspond to the vertical direction of the vehicle body, and the terms "left" and "right" correspond to the horizontal direction of the vehicle body. Other directional terms, unless otherwise explicitly defined, such as "length," "width," "top," "bottom," "inner," and "outer," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, 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 application.

[0034] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0035] Please refer to the following: Figures 1 to 10The oil pan structure assembly provided in this application will now be described. The oil pan structure assembly includes a main oil pan 100, a secondary oil pan 200, and an oil collector 300. The bottom of the main oil pan 100 has a vertically penetrating docking opening 101. The secondary oil pan 200 is docked below the docking opening 101 and is detachably connected to the lower side of the main oil pan 100. The volume of the main oil pan 100 is larger than the volume of the secondary oil pan 200. The oil collector 300 is disposed inside the main oil pan 100, and the collecting end of the oil collector 300 passes through the docking opening 101 and extends into the inner cavity of the secondary oil pan 200.

[0036] In this embodiment, the bottom surface of the main oil pan 100 is relatively flat, and the depth of penetration can be set relatively small to avoid components such as the steering system and the front final drive system below, thus ensuring the compactness and rationality of the layout of each component.

[0037] In this embodiment, both the main oil pan 100 and the auxiliary oil pan 200 are thin-walled shells, and the volume of the auxiliary oil pan 200 is also smaller than that of the main oil pan 100. The auxiliary oil pan 200 is located at the lower part of the main oil pan 100. Due to its small size, the position of the auxiliary oil pan 200 can be flexibly set to avoid components such as the steering system and the front final drive system located below the main oil pan 100.

[0038] In this embodiment, the oil collector 300 needs to be connected to the oil pump through a pipe, and the oil pump provides suction power to extract the lubricating oil in the auxiliary oil pan 200.

[0039] In this embodiment, the collection end of the oil collector 300 is located in the lower middle or bottom of the inner cavity of the auxiliary oil pan 200, so as to avoid the problem of not being able to smoothly draw in lubricating oil when the lubricating oil in the auxiliary oil pan 200 is not full.

[0040] In the existing technology, due to the internal layout limitations of the engine compartment, components such as the steering system and the front main reduction gear system are located at the bottom of the oil pan. The depth of the oil pan is compressed, and the bottom of the oil pan is relatively flat, presenting a shallow basin structure. When going uphill or downhill at a large angle, the oil concentrates at the front or rear of the oil pan, making it difficult for the oil collection device to extract the lubricating oil from the oil pan, which can easily lead to the problem of insufficient lubricating oil in the engine.

[0041] This application provides an oil pan structure assembly, in which a smaller auxiliary oil pan 200 is provided at the bottom of the main oil pan 100 to assist in containing lubricating oil, and an oil collector 300 extends directly into the auxiliary oil pan 200 to extract lubricating oil.

[0042] See Figure 1Taking the case where the auxiliary oil pan 200 is located at the rear of the main oil pan 100 as an example, the working scenarios of the oil pan structure assembly are as follows: 1-1) On flat roads, both the main oil pan 100 and the auxiliary oil pan 200 contain lubricating oil, and the auxiliary oil pan 200 is completely filled with lubricating oil. The collecting end of the oil collector 300 can directly draw lubricating oil from the auxiliary oil pan 200 to achieve lubrication and other functions. 1-2) During uphill driving, the lubricating oil gathers at the rear of the main oil pan 100, and the auxiliary oil pan 200 always remains fully filled with lubricating oil. The oil collector 300 can smoothly draw lubricating oil from the auxiliary oil pan 200. 1-3) During the downhill process, the lubricating oil in the main oil pan 100 gathers at the front, but the lubricating oil in the auxiliary oil pan 200 does not flow out quickly. Sufficient lubricating oil remains in the auxiliary oil pan 200, which allows the oil collector 300 to draw a sufficient amount of lubricating oil from the auxiliary oil pan 200.

[0043] Taking the case where the auxiliary oil pan 200 is located in front of the main oil pan 100 as an example, the working scenarios of the oil pan structure assembly are as follows: 2-1) On a flat road, both the main oil pan 100 and the auxiliary oil pan 200 contain lubricating oil, and the auxiliary oil pan 200 is completely filled with lubricating oil. The collecting end of the oil collector 300 can directly draw lubricating oil from the auxiliary oil pan 200 to achieve lubrication and other functions. 2-2) During uphill driving, the lubricating oil gathers towards the rear of the main oil pan 100, but the lubricating oil in the auxiliary oil pan 200 does not flow out quickly. Sufficient lubricating oil remains in the auxiliary oil pan 200, allowing the oil collector 300 to draw a sufficient amount of lubricating oil from it. 2-3) During the downhill process, the lubricating oil in the main oil pan 100 gathers at the front, the auxiliary oil pan 200 is always full of lubricating oil, and the oil collector 300 can smoothly draw lubricating oil from the auxiliary oil pan 200.

[0044] Taking the case where the auxiliary oil pan 200 is located in the middle of the main oil pan 100 as an example, the working scenarios of the oil pan structure assembly are as follows: 3-1) On flat roads, both the main oil pan 100 and the auxiliary oil pan 200 contain lubricating oil, and the auxiliary oil pan 200 is completely filled with lubricating oil. The collecting end of the oil collector 300 can directly draw lubricating oil from the auxiliary oil pan 200 to achieve lubrication and other functions. 3-2) During uphill driving, the lubricating oil gathers towards the rear of the main oil pan 100, but the lubricating oil in the auxiliary oil pan 200 does not flow out quickly. Sufficient lubricating oil remains in the auxiliary oil pan 200, allowing the oil collector 300 to draw a sufficient amount of lubricating oil from it. 3-3) During the downhill process, the lubricating oil in the main oil pan 100 gathers at the front, but the lubricating oil in the auxiliary oil pan 200 will not flow out quickly. Sufficient lubricating oil remains in the auxiliary oil pan 200, which allows the oil collector 300 to draw a sufficient amount of lubricating oil from the auxiliary oil pan 200.

[0045] As can be seen, the oil pan assembly provided in this application, compared with the prior art, enables the oil collector 300 to effectively draw lubricating oil from the auxiliary oil pan 200 under various road conditions, effectively improving the problem of insufficient engine lubricating oil when climbing steep roads. Furthermore, since the auxiliary oil pan 200 is detachably connected to the main oil pan 100, the main oil pan 100 and the auxiliary oil pan 200 can be maintained and replaced separately during maintenance, resulting in good convenience and lower maintenance costs.

[0046] In some embodiments, see Figure 2 and Figure 4 The bottom of the auxiliary oil sump 200 is equipped with a drain plug 400. Opening the drain plug 400 allows the lubricating oil in both the main oil sump 100 and the auxiliary oil sump 200 to be released for oil replacement. The drain plug 400 is threaded into a drain hole on the auxiliary oil sump 200 to achieve a seal. When changing the lubricating oil, the drain plug 400 is unscrewed to drain the old oil. After draining, it is easy to clean metal debris or deposits from the oil sump. During routine maintenance, the drain plug 400 can be opened to take a sample, and the color and impurities of the waste oil can be used to assess the wear and tear of the equipment.

[0047] In some embodiments, see Figure 4 Along the length of the main oil pan 100, the length of the mating opening 101 is less than the length of the inner cavity of the auxiliary oil pan 200. It should be noted that in this embodiment, the main oil pan 100 is approximately rectangular. Figure 1 Taking the perspective of the main oil pan 100 as an example, the size of the main oil pan 100 in the front-to-back direction is larger than its size in the left-to-right direction. The length direction of the main oil pan 100 is parallel to the front-to-back direction, and the width direction is parallel to the left-to-right direction.

[0048] This embodiment controls the length of the docking opening 101 to make it relatively small, thus buffering the tendency of lubricating oil to flow out of the auxiliary oil pan 200, preventing the lubricating oil from flowing out of the auxiliary oil pan 200 quickly and in large quantities, and ensuring that there is always a sufficient amount of lubricating oil in the auxiliary oil pan 200 during the climbing process.

[0049] In some embodiments, see Figure 6 In the width direction of the main oil pan 100, the width of the mating opening 101 is smaller than the width of the main oil pan 100; the width of the mating opening 101 is greater than the length of the mating opening 101, and the width of the auxiliary oil pan 200 is greater than the length of the auxiliary oil pan 200. Multiple main support ribs 500 are provided within the mating opening 101, supporting the two long sides of the mating opening 101. The multiple main support ribs 500 are spaced apart along the width direction of the mating opening 101, and the collecting end of the oil collector 300 passes through the space between two adjacent main support ribs 500. The length direction of the mating opening 101 is parallel to the length direction of the main oil pan 100, and the width direction of the mating opening 101 is parallel to the width direction of the main oil pan 100. In this embodiment, the length direction of the mating opening 101 is parallel to the front-back direction, and the width direction is parallel to the left-right direction.

[0050] Since the width of the mating opening 101 is greater than the length of the mating opening 101, a sufficiently large flow channel is formed, so that the lubricating oil flows more smoothly from the main oil pan 100 into the secondary oil pan 200, avoiding excessive oil pressure difference on both sides of the mating opening 101 and avoiding adverse phenomena such as eddies that affect the stability of the lubricating oil.

[0051] By setting main support ribs 500, the mating opening 101 is supported, and the structural stability of the mating opening 101 is maintained by setting multiple support points. On this basis, the space between two adjacent main support ribs 500 is used to provide a through space for the oil collector 300, improving the compactness of the assembly structure. At the same time, the main support ribs 500 can also provide a certain limiting effect for the oil collector 300, which helps to maintain the stability of the position of the oil collector 300 in the width direction of the mating opening 101.

[0052] In some embodiments, see Figure 1 , Figure 3 , Figure 4 , Figures 7 to 10The main oil pan 100 is also equipped with an oil baffle 600, with the docking opening 101 and oil collector 300 located below the oil baffle 600. During engine operation, high-speed rotating components such as the crankshaft and connecting rods agitate the lubricating oil, causing oil splashing. This violent sloshing mixes the lubricating oil with air, forming foam. The compressibility of this foam leads to insufficient oil film pressure, reducing lubrication and potentially causing cavitation, damaging components such as bearings. By installing the oil baffle 600, the oil is physically blocked, reducing violent sloshing and preventing the formation of foam from the lubricating oil mixing with air. Furthermore, since the oil baffle 600 covers the space above the docking opening 101, it buffers the tendency for oil to flow out of the secondary oil pan 200, further preventing the problem of rapid oil leakage from the secondary oil pan 200.

[0053] Optionally, the ratio of the length of the baffle plate 600 to the inner length of the main oil pan 100 is 1:2 to 2:3 (e.g., 3:5). This requires covering a sufficiently large area while also ensuring smooth oil flow. Therefore, the length of the baffle plate 600 needs to be less than the length of the inner cavity of the main oil pan 100 (e.g., ...). Figure 4 (As shown). The width of the oil baffle 600 is smaller than the width of the inner cavity of the main oil pan 100, and the gap between the side edge of the oil baffle 600 and the corresponding inner wall of the main oil pan 100 is 5mm~20mm (e.g., 10mm, 15mm).

[0054] It should also be noted that if the mating opening 101 on the main oil pan 100 is located at the edge (such as at the front or rear edge of the main oil pan 100), the corresponding edge of the baffle 600 should be as close as possible to the side wall corresponding to the edge where the mating opening 101 is located. The gap between the edge of the baffle 600 and the corresponding side wall is 1mm to 5mm (e.g., 2mm or 3mm) so that the baffle 600 covers the mating opening 101 as much as possible.

[0055] In some embodiments, see Figure 4 , Figures 8 to 10 The oil collector 300 has an extension section 310 and a collection section 320. The extension section 310 extends along the length of the main oil pan 100. The collection section 320 is connected to one end of the extension section 310 and extends downward, forming a collection end. The extension section 310 is located below the top opening of the main oil pan 100. The oil baffle 600 includes a recessed baffle 610 and two inclined baffles 620 respectively connected to both sides of the recessed baffle 610. In the direction from the inside to the outside, the inclined baffles 620 gradually tilt upward. The extension section 310 is connected to the recessed baffle 610.

[0056] In this embodiment, the oil collector 300 is configured in an L-shape, which has the following effects: the vertically extending collection section 320 can reach the bottom of the auxiliary oil pan 200, ensuring that the collection end is still immersed in the oil when the vehicle accelerates, brakes, or climbs a slope, avoiding the intake of air that could lead to insufficient lubrication or pump cavitation; under aggressive driving or off-road conditions, the lubricating oil level fluctuates greatly, and the L-shaped structure can maintain stable oil intake more than a straight oil suction pipe, and can also cooperate with the oil baffle 600 to further separate air bubbles, ensuring the intake of pure lubricating oil; the L-shaped bend can also bypass the oil baffle 600, the reinforcing ribs or other components inside the main oil pan 100, reducing flow resistance; the L-shaped bend design is more suitable for oil pan designs with limited space, and can make full use of the internal space of the main oil pan 100.

[0057] Based on the layout of the oil collector 300 described above, the oil baffle 600 is equipped with an inclined baffle 620, which brings the following effects: the inclined baffle 620 makes it less likely for oil to accumulate on the surface of the oil baffle 600, and the oil is more likely to slide down the inclined surface, reducing the risk of impurity adhesion and reducing the formation of local sludge or deposits; the inclined baffle 620 can effectively guide splashed oil to a specific position, preventing oil from spreading disorderly and improving lubrication efficiency; near high-speed rotating mechanical parts (such as crankshafts), the inclined design can reduce oil turbulence and air entrainment, reducing energy loss and oil mist generation; the inclined baffle 620 can also have a reinforcing effect, improving the overall deformation resistance of the oil baffle 600 and ensuring the structural stability of the oil baffle 600 in the high-temperature environment around the engine.

[0058] Optional, see Figure 1 , Figure 4 , Figures 8 to 10 The lower end of the inclined baffle 620 is bent downward to form a connecting baffle 630. The connecting baffle 630 and the sinking baffle 610 enclose a receiving groove to accommodate the collecting connecting pipe 660. The receiving groove forms a certain clearance space above the collecting connecting pipe 660 to avoid interference between the components on the engine and the collecting connecting pipe 660.

[0059] Based on the above embodiment, a baffle reinforcing rib 640 is provided between the sunken baffle 610 and the connecting baffle 630. The baffle reinforcing ribs 640 on the two connecting baffles 630 are arranged opposite to each other and integrally connected, forming a layout in which a set of baffle reinforcing ribs 640 are simultaneously connected to both the sunken baffle 610 and the two connecting baffles 630. In this way, the overall integrity of the sunken baffle 610 and the two connecting baffles 630 is effectively increased, and the structural strength of the oil baffle 600 is improved.

[0060] Optionally, the upper end of the inclined baffle 620 is bent outward to form a connecting flange 650, and the connecting flange 650 is provided with a connecting ear 651, which can be connected to the bottom of the engine by fasteners.

[0061] In some embodiments, see Figure 1 , Figures 8 to 10 The inclined baffle 620 is an arc-shaped baffle, which can better disperse impact force and oil pressure, reduce the risk of deformation, and suppress resonance, reducing vibration and noise caused by fluid fluctuations. Furthermore, at least one of the inclined baffles 620 is provided with a reinforcing drawbar 621, which extends along the arc contour of the inclined baffle 620, reinforcing the arc-shaped baffle, preventing breakage, and improving the structural strength of the inclined baffle 620.

[0062] In some embodiments, see Figure 1 and Figure 3 The lower baffle 610 has several oil-stabilizing holes 611, which have the following effects: First, the oil-stabilizing holes 611 allow some lubricating oil to pass through smoothly, avoiding excessive pressure difference on both sides of the oil baffle 600, reducing violent oil splashing or turbulence, thereby reducing the risk of foaming and further improving the problem of air bubbles affecting lubrication. Second, when the vehicle is tilted or bumpy, the oil-stabilizing holes 611 help the lubricating oil to quickly return to the bottom of the main oil pan 100, preventing local oil accumulation from causing pump cavitation or excessive fluid level fluctuations, and optimizing oil return efficiency. Third, the main function of the oil baffle 600 is to suppress the agitation of oil by high-speed moving parts (such as the crankshaft), while the oil-stabilizing holes 611, while blocking a large area of ​​oil mist, allow a suitable amount of oil to pass through, thus balancing oil blocking and oil flow. In general, too few orifices may lead to poor oil return and increase crankshaft operating resistance; too many or too large orifices will weaken the oil blocking effect, and the oil will be easily agitated by the crankshaft, resulting in oxidation or increased foaming. Therefore, the design of the 611 oil stabilizing orifice needs to be optimized in combination with engine operating conditions (such as speed and tilt angle) to achieve dynamic oil stability.

[0063] In some embodiments, see Figure 4 , Figures 8 to 10 An upper opening 312 is formed on the upper side of the extension section 310, and a collection connection pipe 660 is integrally connected to the sunken baffle 610. The lower side of the collection connection pipe 660 has a lower opening 614 that mates with the upper opening 312 of the extension section 310. The collection connection pipe 660 can also be connected to an external pipe. The collection connection pipe 660 serves as an extension of the oil collector 300 to connect to the downstream external pipe. The oil collector 300 does not need to be too long and can be designed to be relatively compact. Based on this, the collection connection pipe 660 is designed to be integrally connected to the oil baffle 600, realizing the integration of collection and oil baffle functions. This further improves the compactness of the vertical layout of the oil baffle 600 and the oil collector 300, adapting to scenarios where the height space of the main oil pan 100 is compressed.

[0064] In some specific embodiments of the collecting connection pipe 660, see [link to specific embodiments]. Figure 1 , Figure 3 and Figure 4 The collecting and connecting pipe 660 includes a first pipe section 661 and a second pipe section 662 connected sequentially. Both the first pipe section 661 and the second pipe section 662 are integrally connected to the sinking baffle 610. A lower opening 614 is formed on the lower side of the first pipe section 661, and an upper opening 312 is formed on the upper side of the extension section 310 of the oil collector 300. The extension section 310 is engaged with the first pipe section 661, and the lower opening 614 and the upper opening 312 are correspondingly connected. The second pipe section 662 has a circular cross-section, which facilitates connection with the downstream pipe.

[0065] Optionally, the first pipe section 661 has a rectangular cross-section, and the extension section 310 of the oil collector 300 also has a rectangular cross-section. The height of the first pipe section 661 gradually increases towards the second pipe section 662, while the height of the extension section 310 gradually decreases away from the collection section 320 (i.e., towards the second pipe section 662). When the two are joined together, the resulting pipe cross-section is approximately rectangular. This design not only meets the flow requirements of lubricating oil but also compresses the pipe size in the vertical direction, avoiding occupying too much space inside the main oil pan 100 and affecting the oil storage capacity of the main oil pan 100. In addition, this gradual size design strengthens the connection area between the extension section 310 and the collection section 320, reducing the risk of breakage of the extension section 310 and improving the overall structural strength of the oil collector 300.

[0066] Optionally, the integral connection between the first pipe segment 661, the second pipe segment 662, and the sinking baffle 610 may include, but is not limited to, welding, integral injection molding, or integral casting, etc., and is not the only one here. If the first pipe segment 661, the second pipe segment 662, and the sinking baffle 610 are all made of metal (e.g., stainless steel), they can be integrally cast or welded. If the first pipe segment 661, the second pipe segment 662, and the sinking baffle 610 are all made of plastic (e.g., polycarbonate), they can be integrally injection molded.

[0067] In some embodiments, see Figure 4 , Figure 9 and Figure 10 The upper opening 312 of the extension section 310 is equipped with a filter element 700 to filter the lubricating oil flowing from the extension section 310 to the collection connection pipe 660, filter out particulate matter and other substances, ensure the purity of the extracted lubricating oil, and avoid wear of internal engine parts due to particulate matter in the lubricating oil.

[0068] In some specific embodiments of the filter element 700, see [reference needed]. Figure 4 , Figure 9 and Figure 10The filter element 700 is a filter screen. The edge of the upper opening 312 of the extension section 310 forms a positioning step groove 311. The edge of the lower opening 614 of the first pipe section 661 forms a positioning protrusion ring 613 corresponding to the positioning step groove 311. The edge of the filter screen is placed in the positioning step groove 311. The positioning protrusion ring 613 extends into the positioning step groove 311 and cooperates with the positioning step groove 311 to clamp and fix the filter screen.

[0069] Optionally, the extension section 310 can be detachably connected to the first pipe section 661 to facilitate filter replacement. Examples of detachable connection methods are as follows: a slot is provided on the outer periphery of the positioning protrusion 613, and a snap-fit ​​protrusion is provided on the outer periphery of the positioning step groove 311. The detachable connection between the two is achieved through the snap-fit ​​between the snap-fit ​​protrusion and the snap-fit ​​slot; alternatively, mounting holes are provided on both the positioning protrusion 613 and the positioning step groove 311, and the two are detachably connected by bolts.

[0070] Optionally, the filter screen can be made of corrosion-resistant and high-strength metal mesh (such as stainless steel mesh). The pore size of the filter screen can be selectively set according to actual filtration needs, and there is no single limitation here.

[0071] In some embodiments, see Figure 1 , Figures 3 to 5 , Figures 8 to 10 The oil baffle 600 also includes two reinforcing end plates 670, which are respectively connected to both ends of the sunken baffle 610. The reinforcing end plates 670 are also connected to the inclined baffles 620 on both sides. The collection and connection pipe 660 extends along the length of the main oil sump 100, and the oil outlet end passes through the reinforcing end plate 670. The reinforcing end plates 670 make the oil baffle 600 form a box-shaped structure, which has good pressure bearing capacity in the vertical direction and multi-directional torsional resistance, further improving the structural strength of the oil baffle 600 and ensuring that the oil baffle 600 remains structurally stable after being impacted by oil.

[0072] In some embodiments, see Figures 1 to 4 , Figure 6 and Figure 7 The lower side of the docking opening 101 is provided with a connecting boss 110 extending circumferentially along the docking opening 101. The auxiliary oil pan 200 is detachably connected to the connecting boss 110. The docking opening 101 is located at the end of the main oil pan 100. Part of the connecting boss 110 extends beyond the outer peripheral wall of the main oil pan 100, and the extended part is sealed to the main oil pan 100 by an extension sealing plate 120.

[0073] The connecting boss 110 in this embodiment facilitates connection with the auxiliary oil pan 200 and ensures reliable connection. The detachable connection methods between the auxiliary oil pan 200 and the connecting boss 110 include, but are not limited to, connection via threaded fasteners and connection via snap-fit. The figure exemplarily illustrates a connection via threaded fasteners.

[0074] In some assembly scenarios, in order to avoid the components below the main oil pan 100, the mating opening 101 is located at the end of the main oil pan 100. In order to provide more clearance space, it is necessary to make part of the connecting boss 110 extend beyond the outer peripheral wall of the main oil pan 100. On this basis, the protruding part is sealed to the main oil pan 100 by the extension sealing plate 120 to ensure the sealing of the space between the main oil pan 100 and the auxiliary oil pan 200.

[0075] Optional, see below Figures 2 to 4 , Figure 6 and Figure 7 To make better use of the space around the main oil pan 100, the auxiliary oil pan 200 is positioned close to the side where the transmission is located, so as to make full use of the empty space below the transmission. On the main oil pan 100, for easy connection with the transmission, the side near the transmission (the rear side of the main oil pan 100 in the figure) is relatively flat, and an upward protrusion is provided on the extension cover 120. The inside of the protrusion is empty and communicates with the inner cavity of the auxiliary oil pan 200 to maximize the oil storage space.

[0076] Optionally, a recessed clearance can be provided on the lower or side part of the auxiliary oil pan 200 to avoid the mounting structure of the main reducer. It is understood that corresponding clearance structures are provided for surrounding components at locations such as the auxiliary oil pan 200 and the connecting boss 110, which will not be listed here.

[0077] Based on the same inventive concept, this application also provides a vehicle including the above-described oil pan structure assembly.

[0078] Compared with the prior art, the vehicle provided in this application improves the problem of insufficient engine lubrication when climbing steep roads by adopting the above-mentioned oil pan structure assembly, thereby enhancing the vehicle's climbing ability.

[0079] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An oil pan structure assembly, characterized in that, include: The main oil pan (100) has a vertically penetrating docking opening (101) at the bottom; The auxiliary oil pan (200) is located below the docking opening (101) and is detachably connected to the lower side of the main oil pan (100). The volume of the main oil pan (100) is greater than the volume of the auxiliary oil pan (200). An oil collector (300) is provided inside the main oil pan (100). The collecting end of the oil collector (300) passes through the docking opening (101) and extends into the inner cavity of the auxiliary oil pan (200).

2. The oil pan structure assembly as described in claim 1, characterized in that, In the longitudinal direction of the main oil pan (100), the length of the docking opening (101) is less than the length of the inner cavity of the secondary oil pan (200).

3. The oil pan structure assembly as described in claim 1, characterized in that, In the width direction of the main oil pan (100), the width of the mating opening (101) is smaller than the width of the main oil pan (100); The width of the docking opening (101) is greater than the length of the docking opening (101), and the width of the auxiliary oil pan (200) is greater than the length of the auxiliary oil pan (200). The docking opening (101) is provided with a plurality of main support ribs (500), which are supported between the two long sides of the docking opening (101) and are spaced apart along the width direction of the docking opening (101). The collecting end of the oil collector (300) passes through the space between two adjacent main support ribs (500).

4. The oil pan structure assembly as described in claim 1, characterized in that, The main oil pan (100) is also provided with an oil baffle (600), and the docking opening (101) and the oil collector (300) are both located below the oil baffle (600).

5. The oil pan structure assembly as described in claim 4, characterized in that, The oil collector (300) has an extension section (310) and a collection section (320). The extension section (310) extends along the length of the main oil pan (100). The collection section (320) is connected to one end of the extension section (310) and extends downward. The collection section (320) forms the collection end. The extension section (310) is located below the top opening of the main oil pan (100). The oil baffle (600) includes a sunken baffle (610) and two inclined baffles (620) respectively connected to both sides of the sunken baffle (610). In the direction from the inside to the outside, the inclined baffles (620) gradually tilt upward, and the extension section (310) is connected to the sunken baffle (610).

6. The oil pan structure assembly as described in claim 5, characterized in that, An upper opening (312) is formed on the upper side of the extension section (310), and a collection connection pipe (660) is integrally connected to the sinking baffle (610). The lower side of the collection connection pipe (660) has a lower opening (614) that connects with the upper opening (312) of the extension section (310). The collection connection pipe (660) can also be connected to an external pipe.

7. The oil pan structure assembly as described in claim 6, characterized in that, A filter element (700) is provided at the upper opening (312) of the extension section (310) to filter the lubricating oil flowing from the extension section (310) to the collection connection pipe (660).

8. The oil pan structure assembly as described in claim 6, characterized in that, The oil baffle (600) also includes two reinforcing end plates (670), which are respectively connected to the two ends of the sunken baffle (610). The reinforcing end plates (670) are also connected to the inclined baffles (620) on both sides. The collection connection pipe (660) extends along the length of the main oil sump (100), and the oil outlet end penetrates the reinforcing end plate (670).

9. The oil pan structure assembly as described in claim 1 or 2, characterized in that, The lower side of the docking opening (101) is provided with a connecting boss (110) extending circumferentially along the docking opening (101), and the auxiliary oil pan (200) is detachably connected to the connecting boss (110); the docking opening (101) is located at the end of the main oil pan (100), and part of the connecting boss (110) extends beyond the outer peripheral wall of the main oil pan (100), and the extended part is sealed to the main oil pan (100) by an extension sealing plate (120).

10. A vehicle, characterized in that, Includes the oil pan structure assembly as described in any one of claims 1-9.

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