Oil pan, lubricating system and vehicle

Abstract

The utility model provides an oil pan, a lubricating system and a vehicle, the oil pan comprises an oil pan body, the oil pan body is provided with an oil collecting groove, and the groove bottom wall of the oil collecting groove is sunken to form a first oil collecting area, a second oil collecting area and a third oil collecting area which are communicated in sequence; the first oil collecting area and the third oil collecting area extend in the first direction of the oil pan body and are arranged on the two sides of the second oil collecting area respectively. Wherein the depth of the second oil collecting area is different from the depth of the first oil collecting area and the depth of the third oil collecting area. The oil collecting groove in the oil pan is provided with the three oil collecting areas located at different positions so as to meet the oil suction requirements of an engine oil collector under different extreme use working conditions, so that the oil pan can return oil in time, and the lubrication reliability of a lubrication system is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of lubrication systems, and more particularly, to an oil sump, a lubrication system and a vehicle. Background Art

[0002] An engine lubrication system is generally provided in a vehicle, for example, a wet lubrication system or a dry lubrication system, to lubricate the engine oil in the engine, wherein a dry oil sump is usually provided in the dry lubrication system.

[0003] However, for some vehicles with better performance under extreme operating conditions (such as sudden acceleration and deceleration, sharp turns, etc.), the dry oil sump in the related technology cannot meet the oil return requirements under extreme operating conditions. The dry oil sump cannot return oil in time, resulting in the vehicle's inability to perform acceleration, deceleration, sharp turns, etc., affecting the user experience. Utility Model Content

[0004] The present application provides an oil pan, a lubrication system and a vehicle, aiming to solve the problem that the oil pan cannot meet the oil return requirements under extreme operating conditions, resulting in the vehicle being unable to perform acceleration, deceleration, sharp turns and other performance.

[0005] In a first aspect, an oil pan is provided, which includes an oil pan body, the oil pan body is provided with an oil collecting groove, the bottom wall of the oil collecting groove is recessed to form a first oil collecting area, a second oil collecting area and a third oil collecting area which are connected in sequence, and the first oil collecting area and the third oil collecting area extend along a first direction of the oil pan body and are arranged on both sides of the second oil collecting area respectively; wherein the depth of the second oil collecting area is different from the depths of the first oil collecting area and the third oil collecting area.

[0006] In the above technical solution, the first oil collecting area, the second oil collecting area and the third oil collecting area are sequentially arranged inwardly along the first direction in the oil collecting tank, that is, in the first direction of the oil collecting tank, the first oil collecting area is located at the front position of the oil collecting tank, the second oil collecting area is located at the middle position of the oil collecting tank, and the third oil collecting area is located at the rear position of the oil collecting tank, so as to meet the oil absorption requirements of the oil collector under different use conditions (such as normal driving, acceleration or left turn, deceleration or right turn, etc.), so that the oil pan can return oil in time, thereby ensuring the lubrication reliability of the lubrication system. Moreover, the depth of the second oil collecting area is different from the depth of the first oil collecting area and the third oil collecting area, that is, the bottom wall of the oil collecting tank is not a planar structure as a whole, but a high and low structure, and there is no need to add an additional reinforcing rib structure. The first oil collecting area, the second oil collecting area and the third oil collecting area can play the role of reinforcing ribs, enhance the strength and rigidity of the oil pan, effectively resist bending and twisting, thereby improving the ability of the oil pan to resist deformation and the bottom surface mode of the oil pan, avoiding the problem of deformation risk, and maintaining the shape stability of the oil pan.

[0007] In combination with the first aspect, in certain possible implementations, the oil pan body includes a front end portion and a rear end portion arranged opposite to the front end portion, the first oil collecting area is located on the bottom wall of the oil collecting tank near the front end portion, and the third oil collecting area is located on the bottom wall of the oil collecting tank near the rear end portion.

[0008] In the above technical scheme, the first oil collecting area is set on the bottom wall of the oil collecting tank near the front end, which can meet the oil return needs of the vehicle under extreme operating conditions of acceleration or left turning. The third oil collecting area is set on the bottom wall of the oil collecting tank near the rear end, which can meet the oil return needs of the vehicle under extreme operating conditions of deceleration or right turning.

[0009] In combination with the first aspect and the above-mentioned implementations, in some possible implementations, the first oil collecting area and the third oil collecting area are respectively extended along the second direction of the oil pan body and arranged on both sides of the second oil collecting area; wherein the second direction is perpendicular to the first direction.

[0010] In the above technical solution, a first oil collection area and a third oil collection area can meet the oil return requirements under extreme operating conditions of acceleration or left turn, deceleration and right turn. There is no need to set a corresponding oil collection area based on each extreme operating condition, which reduces the production cost and improves the oil return reliability under different extreme operating conditions.

[0011] In combination with the first aspect and the above implementations, in certain possible implementations, the bottom wall of the first oil collecting area is higher than the bottom wall of the second oil collecting area.

[0012] In the above technical solution, when the vehicle is in the extreme operating condition of acceleration or left turn, the engine oil will gather in the first oil collecting area. When the vehicle is no longer in the extreme operating condition and is driving normally, since the bottom wall of the first oil collecting area is higher than the bottom wall of the second oil collecting area, the engine oil in the first oil collecting area will flow to the second oil collecting area, so that the engine oil can flow normally when the vehicle is driving normally. At the same time, since the bottom wall of the second oil collecting area is lower, the amount of residual oil in the oil collecting tank when the vehicle is driving normally can be reduced.

[0013] In combination with the first aspect and the above-mentioned implementations, in some possible implementations, the first oil collecting area is provided with a bending portion, one side of the bending portion is connected to the bottom wall of the first oil collecting area, and the other side of the bending portion is connected to the bottom wall of the second oil collecting area.

[0014] In the above technical solution, when the vehicle is released from the extreme operating conditions and is driving normally, the oil in the first oil collecting area will flow to the second oil collecting area through the bending portion, thereby improving the flow smoothness of the oil and further improving the oil return stability of the vehicle under normal driving.

[0015] In combination with the first aspect and the above implementations, in certain possible implementations, the bottom wall of the first oil collecting area is arranged at an angle to the bottom wall of the second oil collecting area.

[0016] In the above technical solution, when the vehicle is in the extreme use condition of acceleration or left turn, the oil will gather in the first oil collection area. When the vehicle is released from the extreme use condition and is driving normally, the oil in the first oil collection area will flow to the second oil collection area under the action of gravity, so that the oil can flow normally when the vehicle is driving normally. At the same time, since the bottom wall of the second oil collection area is relatively low, the amount of residual oil in the oil collection tank when the vehicle is driving normally can be reduced. Secondly, the manufacturing process is simplified, the manufacturing cost is saved, and the oil on the first oil collection area can flow to the second oil collection area without setting an additional bending part or other structure to meet the oil return demand under normal driving of the vehicle.

[0017] In combination with the first aspect and the above implementations, in certain possible implementations, the bottom wall of the third oil collection area is higher than the bottom wall of the second oil collection area.

[0018] In the above technical solution, when the vehicle is in the extreme operating condition of deceleration or right turn, the engine oil will gather in the third oil collecting area. When the vehicle is no longer in the extreme operating condition and is driving normally, since the bottom wall of the third oil collecting area is higher than the bottom wall of the second oil collecting area, the engine oil in the third oil collecting area will flow to the second oil collecting area, so that the engine oil can flow normally when the vehicle is driving normally. At the same time, since the bottom wall of the second oil collecting area is lower, the amount of residual oil in the oil collecting tank when the vehicle is driving normally can be reduced.

[0019] In combination with the first aspect and the above-mentioned implementations, in certain possible implementations, the bottom wall of the third oil collecting area is arranged at an angle to the bottom wall of the second oil collecting area.

[0020] In the above technical solution, when the vehicle is in the extreme use condition of deceleration or right turn, the oil will gather in the third oil collection area. When the vehicle is released from the extreme use condition and is driving normally, the oil in the third oil collection area will flow to the second oil collection area under the action of gravity, so that the oil can flow normally when the vehicle is driving normally. At the same time, since the bottom wall of the second oil collection area is relatively low, the amount of residual oil in the oil collection tank when the vehicle is driving normally can be reduced. Secondly, the manufacturing process is simplified and the manufacturing cost is saved, that is, there is no need to set an additional bending part or other structure to make the oil on the third oil collection area flow to the second oil collection area to meet the oil return demand under normal driving of the vehicle.

[0021] In a second aspect, an embodiment of the present application provides a lubrication system, which includes an oil collector, an oil pump, an oil tank and an oil pan as described in any optional manner in the first aspect; the oil pan, the oil collector, the oil pump and the oil tank are connected in sequence.

[0022] In a third aspect, an embodiment of the present application provides a vehicle, comprising an engine and a lubrication system as described in any optional manner of the second aspect, wherein the lubrication system is located on the engine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of a top view of an oil pan provided in an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of a top view of another oil pan provided in an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of a top view of another oil pan provided in an embodiment of the present application;

[0026] Figure 4 is a structural schematic diagram of an oil pan provided in an embodiment of the present application;

[0027] Figure 5 is a schematic diagram of a cross-sectional structure of an oil pan provided in an embodiment of the present application;

[0028] Figure 6 This is a schematic diagram of a top view of the structure of another oil pan provided in an embodiment of the present application.

[0029] Among them, the reference numerals in the figure are:

[0030] 1. Oil pan; 11. Oil pan body; 11A. Oil collecting tank; 11B. First oil collecting area; 11C. Second oil collecting area; 11D. Third oil collecting area; 111. Front end; 112. Rear end; 113. Bend; 114. Bolt; 115. Oil drain port; 116. Mounting point; 117. Oil channel; xx. First direction; yy. Second direction; a. First flow direction; b. Second flow direction; c. Third flow direction; d. Fourth flow direction. DETAILED DESCRIPTION

[0031] The technical solution in the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0032] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0033] With the advancement of science and technology, the rapid development of the vehicle industry and the improvement of social living standards, people have put forward more demands on the use of vehicles. For example, vehicles are generally equipped with an engine lubrication system to lubricate the oil in the engine. At present, the engine lubrication system usually has two types: wet lubrication system and dry lubrication system.

[0034] Among them, the wet lubrication system in the related art usually includes a wet oil pan and an oil pump. The wet oil pan is usually used to store oil and seal the crankcase to meet the oil consumption required by the vehicle within the maintenance mileage. For this reason, the volume of the wet oil pan is usually set larger, that is, the depth of the wet oil pan is deeper. When the wet lubrication system is in operation, the wet oil pan will send the oil stored in the wet oil pan to the various moving parts and hydraulic components of the engine, and the oil after lubrication will quickly return to the wet oil pan. Therefore, the oil in the engine can be continuously circulated in the various moving parts and hydraulic components through the oil pump. The oil storage position of the wet oil pan in the wet lubrication system is relatively fixed. Although it can meet the oil suction needs of the vehicle under extreme use conditions such as acceleration and deceleration, its oil storage position is relatively fixed and the overall angle is small, which can only meet the oil suction needs of vehicles with acceleration less than 0.5g. For some vehicles with better performance, the acceleration is between 0.8-1.5g under extreme operating conditions. The use of a wet lubrication system may cause difficulty in oil return, which will affect the normal operation of the wet lubrication system and cause engine damage, which in turn affects the normal use of the vehicle.

[0035] The dry lubrication system in the related art usually includes a dry oil pan, an oil pump and an oil tank. The oil in the dry oil pan enters the oil pump and finally returns to the oil tank. At this time, the dry oil pan will no longer serve as an oil storage component. For this reason, the volume of the dry oil pan is small and the amount of oil in the dry oil pan is small. However, some vehicles with better performance have higher acceleration under extreme operating conditions. The dry oil pan in the related art cannot meet the oil return requirements under extreme operating conditions. There is a problem that the dry oil pan cannot return oil in time, resulting in the vehicle being unable to perform acceleration, deceleration, sharp turns and other performance, affecting the user experience.

[0036] To this end, an embodiment of the present application provides an oil pan, a lubrication system and a vehicle, wherein the oil collecting tank in the oil pan is provided with three oil collecting areas located at different positions to meet the oil suction requirements of the oil collector under different extreme operating conditions, so that the oil pan can return oil in time, thereby ensuring the lubrication reliability of the lubrication system.

[0037] The oil pan, lubrication system and vehicle provided in the embodiments of the present application are exemplarily described below in conjunction with the drawings.

[0038] The vehicle provided in the embodiment of the present application may include an engine and a lubrication system connected to the engine, the lubrication system is located on the engine body, and the lubrication system is used to lubricate the oil in the engine. Among them, the lubrication system includes an oil collector, an oil pump, an oil tank and an oil pan, and the oil pan, the oil collector, the oil pump and the oil tank are connected in sequence. Here, it can be understood that the oil in the oil pan, the oil collector, the oil pump and the oil tank can flow with each other. When the lubrication system is running, after the oil in the engine that participates in the work of the moving parts and hydraulic components falls back to the oil pan, the oil pump will quickly suck the oil in the oil pan through the oil collector, and then flow to the oil tank for storage. The oil stored in the oil tank will be sucked away again by the oil pump, and then flow to the moving parts and hydraulic components of the engine to complete the lubrication.

[0039] Among them, Figure 1 As shown, the oil pan 1 includes an oil pan body 11, and an oil collecting tank 11A is arranged in the oil pan body 11. Under different extreme use conditions (such as rapid acceleration and deceleration, sharp turns, etc.), the oil in the oil collecting tank 11A will flow to different positions in the oil collecting tank 11A. In order to enable the oil collector to meet the oil suction requirements under different extreme use conditions, thereby ensuring the oil return stability of the lubrication system, in an example, as Figure 2 As shown, the bottom wall of the oil collecting tank 11A is concavely formed with a first oil collecting area 11B, a second oil collecting area 11C and a third oil collecting area 11D which are connected in sequence, and the first oil collecting area 11B and the third oil collecting area 11D are respectively extended and arranged on both sides of the second oil collecting area 11C along the first direction xx of the oil pan body 11. In this way, the oil collecting tank 11A includes three oil collecting areas located at different positions to meet the oil absorption requirements of the oil collector under different extreme use conditions, so that the oil pan 1 can return oil in time, thereby ensuring the lubrication reliability of the lubrication system.

[0040] For example, when the vehicle is in the extreme use condition of acceleration or left turn, the bottom wall of the first oil collection area 11B is lower than the bottom wall of the oil collection tank 11A, so the oil will quickly gather from the bottom wall of the oil collection tank 11A to the first oil collection area 11B to meet the oil absorption demand of the oil collector under the extreme use condition of acceleration or left turn. For another example, when the vehicle is in the extreme use condition of deceleration or right turn, the bottom wall of the third oil collection area 11D is lower than the bottom wall of the oil collection tank 11A, so the oil will quickly gather from the bottom wall of the oil collection tank 11A to the third oil collection area 11D to meet the oil absorption demand of the oil collector under the extreme use condition of deceleration or right turn. When the vehicle is driving normally, the oil will quickly gather in the second oil collection area 11C. In this way, the first oil collecting area 11B, the second oil collecting area 11C and the third oil collecting area 11D are arranged in sequence inwardly along the first direction xx in the oil collecting tank 11A, that is, in the first direction xx of the oil collecting tank 11A, the first oil collecting area 11B is located at the front position of the oil collecting tank 11A, the second oil collecting area 11C is located in the middle position of the oil collecting tank 11A, and the third oil collecting area 11D is located at the rear position of the oil collecting tank 11A, so as to meet the oil suction demand of the oil collector under different operating conditions (such as normal driving, acceleration or left turn, deceleration or right turn, etc.), that is, to meet the oil return demand of the vehicle under different operating conditions, so that the oil pan 1 can return oil in time, thereby ensuring the lubrication reliability of the lubrication system.

[0041] In one example, if Figure 3 and Figure 4 As shown, the oil pan body 11 may include a front end portion 111 and a rear end portion 112 arranged opposite to the front end portion 111. In this example, it can be understood that the first direction xx refers to the front-to-rear direction relative to the front end portion 111 and the rear end portion 112. At this time, the first oil collecting area 11B is located on the bottom wall of the oil collecting tank 11A near the front end portion 111, the third oil collecting area 11D is located on the bottom wall of the oil collecting tank 11A near the rear end portion 112, and the second oil collecting area 11C is located between the first oil collecting area 11B and the third oil collecting area 11D, that is, the second oil collecting area 11C is located in the middle position between the front end portion 111 and the rear end portion 112, so as to meet the oil suction requirements of the oil collector under different operating conditions.

[0042] In this example, when the vehicle is in the extreme use condition of acceleration or left turn, the oil in the oil collecting tank 11A will gather on the bottom wall of the tank near the front end 111 under the action of acceleration. At this time, since the first oil collecting area 11B is located on the bottom wall of the tank near the front end 111 of the oil collecting tank 11A, the oil will gather in the first oil collecting area 11B to meet the oil absorption demand of the oil collector under the extreme use condition of acceleration or left turn. When the vehicle is in the extreme use condition of deceleration or right turn, the oil in the oil collecting tank 11A will gather on the bottom wall of the tank near the rear end 112 under the action of acceleration. At this time, since the third oil collecting area 11D is located on the bottom wall of the tank near the rear end 112 of the oil collecting tank 11A, the oil will gather in the third oil collecting area 11D to meet the oil absorption demand of the oil collector under the extreme use condition of deceleration or right turn. When the vehicle is in a normal driving state, the oil in the oil collecting tank 11A will gather in the second oil collecting area 11C in the middle position. In this way, the first oil collecting area 11B is set on the bottom wall of the oil collecting tank 11A near the front end 111, and the third oil collecting area 11D is set on the bottom wall of the oil collecting tank 11A near the rear end 112 to meet the oil return needs of the vehicle under different extreme operating conditions.

[0043] In order to further improve the oil return reliability under different extreme operating conditions, in an example, Figure 3 As shown, the first oil collecting area 11B and the third oil collecting area 11D extend along the second direction yy of the oil pan body 11 and are respectively arranged on both sides of the second oil collecting area 11C, wherein the second direction yy is perpendicular to the first direction xx, and when the first direction xx refers to the front-to-back direction, the second direction yy at this time refers to the left-right direction relative to the left and right sides of the oil pan body 11. In this example, the first oil collecting area 11B is located on the bottom wall of the left front part of the oil collecting tank 11A, the third oil collecting area 11D is located on the bottom wall of the right rear part of the oil collecting tank 11A, and the second oil collecting area 11C is located on the bottom wall of the tank in the middle position of the oil collecting tank 11A.

[0044] In this example, when the vehicle is in the extreme operating condition of acceleration, the oil in the oil collecting tank 11A will be gathered on the bottom wall of the tank near the left side through the first flow direction a under the action of acceleration. When the vehicle is in the extreme operating condition of left turning, the oil in the oil collecting tank 11A will be gathered on the bottom wall of the tank near the front end 111 through the second flow direction b under the action of acceleration. At this time, the first oil collecting area 11B is located on the bottom wall of the tank at the left front part of the oil collecting tank 11A. The oil return demand under the extreme operating conditions of acceleration and left turning can be met by one first oil collecting area 11B. There is no need to set the corresponding oil collecting area based on each extreme operating condition, which reduces the manufacturing cost and improves the oil return reliability under different extreme operating conditions. When the vehicle is in the extreme operating condition of deceleration, the oil in the oil collecting tank 11A will be gathered on the bottom wall of the tank near the right side through the third flow direction c under the action of acceleration. When the vehicle is in the extreme operating condition of right turning, the oil in the oil collecting tank 11A will be gathered on the bottom wall of the tank near the rear end 111 along the fourth flow direction d under the action of acceleration. At this time, the third oil collecting area 11D is located on the bottom wall of the tank at the right rear part of the oil collecting tank 11A. The oil return demand under the extreme operating conditions of deceleration and right turning can be met by one third oil collecting area 11D. There is no need to set a corresponding oil collecting area based on each extreme operating condition, which reduces the manufacturing cost and improves the oil return reliability under different extreme operating conditions.

[0045] Here, it is worth noting that the specific number and position of the oil collection areas in the oil collection tank 11A can be set according to actual needs. If you want to further improve the oil return reliability, you can add a fourth oil collection area on the bottom wall of the right front part of the oil collection tank 11A, and add a fifth oil collection area on the bottom wall of the left rear part of the oil collection tank 11A, so that the oil collection area matches each extreme use condition to improve the oil return reliability under each extreme use condition. If you want to reduce the manufacturing cost, you can only set the first oil collection area 11B, the second oil collection area 11C and the third oil collection area 11D in the oil collection tank 11A, and this application does not make specific restrictions.

[0046] The oil pan 1 is small in size and has limited space, so it is impossible to add additional reinforcing ribs. In order to avoid the problem that the bottom wall of the oil collecting tank 11A is a flat structure as a whole, resulting in low strength and rigidity of the oil collecting tank 11A and a risk of deformation, in one example, Figure 5As shown, the depth of the second oil collecting area 11C is different from the depth of the first oil collecting area 11B and the third oil collecting area 11D, that is, at this time, the bottom wall of the oil collecting tank 11A is not a flat structure as a whole, but a structure with staggered heights. In this way, there is no need to add an additional reinforcing rib structure. The first oil collecting area 11B, the second oil collecting area 11C and the third oil collecting area 11D play the role of reinforcing ribs at this time, enhancing the strength and rigidity of the oil pan 1, and can effectively resist bending and twisting, so as to improve the ability of the oil pan 1 to resist deformation and the bottom surface mode of the oil pan 1, and at the same time reduce the radiation noise of the bottom surface, avoid the problem of deformation risk, and ensure the shape stability of the oil pan 1.

[0047] In order to further improve the bottom surface mode of the oil pan 1, in one example, as Figure 3 As shown, a plurality of bolts 114 may be spaced apart on the bottom wall of the second oil collecting area 11C to improve the bottom surface modality of the oil pan 1 .

[0048] When the vehicle is running normally, in order to ensure that the oil can flow normally, in one example, Figure 5 As shown, the bottom wall of the first oil collecting area 11B is higher than the bottom wall of the second oil collecting area 11C, that is, the depth of the second oil collecting area 11C is greater than the depth of the first oil collecting area 11B. In this way, when the vehicle is in an extreme operating condition of acceleration or left turning, the engine oil will gather in the first oil collecting area 11B. When the vehicle is no longer in the extreme operating condition and is driving normally, since the bottom wall of the first oil collecting area 11B is higher than the bottom wall of the second oil collecting area 11C, the engine oil in the first oil collecting area 11B will flow to the second oil collecting area 11C, so that the engine oil can flow normally when the vehicle is driving normally. At the same time, since the bottom wall of the second oil collecting area 11C is lower, the amount of residual oil in the oil collecting tank 11A when the vehicle is driving normally can be reduced.

[0049] In order to further improve the oil return reliability under different extreme operating conditions, in an example, Figures 3 to 5 As shown, the first oil collecting area 11B is provided with a bent portion 113, one side of the bent portion 113 is connected to the bottom wall of the first oil collecting area 11B, and the other side of the bent portion 113 is connected to the bottom wall of the second oil collecting area 11C. In this way, when the vehicle is released from the extreme use condition and is driving normally, the oil in the first oil collecting area 11B will flow to the second oil collecting area 11C through the bent portion 113, thereby improving the flow smoothness of the oil, and further improving the oil return stability of the vehicle under normal driving.

[0050] Optionally, the bending portion 113 may be a curved surface, a step-shaped structure, or other structures that can achieve the above functions, and the present application does not impose any specific limitation on this.

[0051] When the vehicle is running normally, in order to ensure that the oil can flow normally while reducing the manufacturing cost, in one example, the bottom wall of the first oil collection area 11B and the bottom wall of the second oil collection area 11C are set at an angle, that is, the overall depth of the second oil collection area 11C is also greater than the overall depth of the first oil collection area 11B. In this way, when the vehicle is in the extreme use condition of acceleration or left turn, the oil will gather in the first oil collection area 11B. When the vehicle is released from the extreme use condition and runs normally, the oil in the first oil collection area 11B will flow to the second oil collection area 11C under the action of gravity, so that the oil can flow normally when the vehicle is running normally. At the same time, since the bottom wall of the second oil collection area 11C is lower, the amount of residual oil in the oil collection tank 11A when the vehicle is running normally can be reduced. Secondly, the manufacturing process is simplified, the manufacturing cost is saved, and the oil on the first oil collection area 11B can flow to the second oil collection area 11C without setting an additional bending portion 113 or other structures to meet the oil return demand under normal driving of the vehicle.

[0052] In one example, if Figure 5 As shown, the bottom wall of the third oil collecting area 11D is higher than the bottom wall of the second oil collecting area 11C, that is, the depth of the second oil collecting area 11C is greater than the depth of the third oil collecting area 11D. In this way, when the vehicle is in an extreme operating condition of deceleration or right turn, the engine oil will gather in the third oil collecting area 11D. When the vehicle is no longer in the extreme operating condition and is driving normally, since the bottom wall of the third oil collecting area 11B is higher than the bottom wall of the second oil collecting area 11C, the engine oil in the third oil collecting area 11D will flow to the second oil collecting area 11C, so that the engine oil can flow normally when the vehicle is driving normally. At the same time, since the bottom wall of the second oil collecting area 11C is lower, the amount of residual oil in the oil collecting tank 11A when the vehicle is driving normally can be reduced.

[0053] In this example, the third oil collecting area 11D may also be provided with a bend, one side of the bend is connected to the bottom wall of the third oil collecting area 11D, and the other side of the bend is connected to the bottom wall of the second oil collecting area 11C. In this way, when the vehicle is released from the extreme use condition and is driving normally, the oil in the third oil collecting area 11D will flow to the second oil collecting area 11C through the bend 113, thereby improving the flow smoothness of the oil and further improving the oil return stability of the vehicle under normal driving. The third oil collecting area 11D may also be provided with a step structure, so that when the vehicle is released from the extreme use condition and is driving normally, the oil can flow to the second oil collecting area 11C through the step structure. Other transition structures that can achieve the above functions may also be provided between the third oil collecting area 11D and the second oil collecting area 11C, and this application does not impose any specific restrictions on this.

[0054] When the vehicle is running normally, in order to ensure that the oil can flow normally while reducing the manufacturing cost, in one example, the bottom wall of the third oil collection area 11D is set at an angle with the bottom wall of the second oil collection area 11C, that is, the overall depth of the second oil collection area 11C is also greater than the overall depth of the third oil collection area 11D. In this way, when the vehicle is in the extreme use condition of deceleration or right turn, the oil will gather in the third oil collection area 11D. When the vehicle is released from the extreme use condition and runs normally, the oil in the third oil collection area 11D will flow to the second oil collection area 11C under the action of gravity, so that the oil can flow normally when the vehicle is running normally. At the same time, since the bottom wall of the second oil collection area 11C is lower, the amount of residual oil in the oil collection tank 11A when the vehicle is running normally can be reduced. Secondly, the manufacturing process is simplified, the manufacturing cost is saved, and the oil on the third oil collection area 11D can flow to the second oil collection area 11C without setting an additional bending part or other transition structure to meet the oil return demand under normal driving of the vehicle.

[0055] Here, it is worth mentioning that setting the height of the first oil collecting area 11B and the third oil collecting area 11D higher than the second oil collecting area 11C can not only meet the oil return demand under normal driving of the vehicle, but also enable the vehicle to achieve lubrication based on less engine oil when climbing and descending.

[0056] It is understandable that the specific shapes and sizes of the first oil collection area 11B and the third oil collection area 11D can be set according to the setting position of the oil pan 1 in the vehicle and other structures at the bottom of the oil pan 1. For example, assuming that other structures in the vehicle are set below the first oil collection area 11B, resulting in limited installation space for the first oil collection area 11B and unable to be set at an angle, the bottom wall of the first oil collection area 11B can be set higher to avoid other structures while making the bottom wall higher than the bottom wall of the second oil collection area 11C to meet the oil return requirements of the vehicle during normal driving. For another example, assuming that no other structures in the vehicle are set below the third oil collection area 11D, the third oil collection area 11D can be set at an angle. In order to further improve the reliability of the oil flowing from the third oil collection area 11D to the second oil collection area 11C, the inclination angle of the third oil collection area 11D can be set larger. For another example, assuming that other structures in the vehicle (such as the crankcase body) are disposed at a portion below the first oil collection area 11B, the first oil collection area 11B may be disposed obliquely to the left of the front end 111 to avoid the crankcase body. The specific shapes and sizes of the first oil collection area 11B and the third oil collection area 11D may be set according to actual needs, and this application does not impose any specific restrictions on this.

[0057] In one example, if Figure 3As shown, the second oil collecting area 11C can be set as a long strip structure, and the two opposite walls of the second oil collecting area 11C can be respectively abutted against the front end 111 and the rear end 112. In this way, the volume of the second oil collecting area 11C is larger to further improve the oil return demand of the vehicle under normal driving. The second oil collecting area 11C can also be set to other structures, and the present application does not make any specific restrictions on this.

[0058] In order to facilitate the replacement of the engine oil after the vehicle reaches the maintenance mileage, in one example, the bottom wall of the second oil collection area 11C is provided with an oil drain port 115. When the engine oil does not need to be replaced, the oil drain port 115 can be blocked by a screw plug. When the engine oil needs to be replaced, the screw plug can be removed to allow the engine oil to be discharged. At this time, some impurities mixed in the engine oil will also be discharged with the oil. In addition, the second oil collection area 11C is located in the middle position of the oil pan 1, which is directly opposite to the crankcase. When the vehicle is in a flameout state, the engine oil will quickly fall back into the second oil collection area 11C, which increases the speed of the engine oil reflux. Here, it is worth noting that an oil drain port can also be provided at the bottom of the first oil collection area 11B or the third oil collection area 11D, and the depth of the first oil collection area 11B or the third oil collection area 11D is correspondingly set to be lower than the second oil collection area 11C. This application does not make any specific restrictions.

[0059] In summary, the oil collecting tank 11A provided by the present application is provided with three first oil collecting areas 11B, second oil collecting areas 11C and third oil collecting areas 11D located at different positions to meet the oil absorption requirements of the oil collector under different extreme use conditions, so that the oil pan 1 can return oil in time, thereby ensuring the lubrication reliability of the lubrication system. At the same time, the depth of the second oil collecting area 11C is different from the depth of the first oil collecting area 11B and the third oil collecting area 11D, that is, at this time, the bottom wall of the oil collecting tank 11A is not a planar structure as a whole, but a high and low structure. In this way, there is no need to add additional reinforcing rib structures. The first oil collecting area 11B, the second oil collecting area 11C and the third oil collecting area 11D play the role of reinforcing ribs at this time, enhance the strength and rigidity of the oil pan 1, and can effectively resist bending and twisting, so as to improve the ability of the oil pan 1 to resist deformation and the bottom surface mode of the oil pan 1, while reducing the radiation noise of the bottom surface, avoiding the problem of deformation risk, and ensuring the shape stability of the oil pan 1.

[0060] In order to improve the firmness of the oil collector on the oil pan 1, and thus ensure the oil suction reliability of the oil collector, in one example, Figure 6 As shown, the bottom wall of the oil collecting tank 11A is provided with a plurality of mounting points 116 around the first oil collecting area 11B, and the plurality of mounting points 116 are used to fix the oil collector. The number and setting positions of the mounting points 116 can be set based on different oil collectors, and the present application does not impose any specific restrictions on this.

[0061] In one example, if Figure 6 As shown, the bottom wall of the oil collecting tank 11A may also be provided with an oil passage 117, and the oil pump and the oil storage tank of the oil tank may be connected through the oil passage 117. Other structures may also be provided on the oil collecting tank 11A, such as an oil passage corresponding to the oil collector, a structure for fixing the oil pump, etc., which will not be described in detail in this application.

[0062] Through the description of the above implementation methods, technical personnel in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0063] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0064] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An oil pan (1), characterized in that: The oil pan (1) comprises: An oil sump body (11), the oil sump body (11) being provided with an oil collecting groove (11A), the groove bottom wall of the oil collecting groove (11A) being recessed to form a first oil collecting area (11B), a second oil collecting area (11C) and a third oil collecting area (11D) which are connected in sequence, and the first oil collecting area (11B) and the third oil collecting area (11D) are respectively extended along a first direction of the oil sump body (11) and arranged on both sides of the second oil collecting area (11C); The depth of the second oil collection area (11C) is different from the depths of the first oil collection area (11B) and the third oil collection area (11D).

2. The oil sump (1) according to claim 1, characterized in that The oil pan body (11) comprises a front end portion (111) and a rear end portion (112) arranged opposite to the front end portion (111); the first oil collecting area (11B) is located on a bottom wall of the oil collecting tank (11A) close to the front end portion (111); and the third oil collecting area (11D) is located on a bottom wall of the oil collecting tank (11A) close to the rear end portion (112).

3. The oil sump (1) according to claim 2, characterized in that The first oil collection area (11B) and the third oil collection area (11D) are respectively extended along the second direction of the oil sump body (11) and arranged on both sides of the second oil collection area (11C); The second direction is perpendicular to the first direction.

4. The oil sump (1) according to claim 1, characterized in that The bottom wall of the first oil collecting area (11B) is higher than the bottom wall of the second oil collecting area (11C).

5. The oil sump (1) according to claim 4, characterized in that The first oil collecting area (11B) is provided with a bent portion (113), one side of the bent portion (113) is connected to the bottom wall of the first oil collecting area (11B), and the other side of the bent portion (113) is connected to the bottom wall of the second oil collecting area (11C).

6. The oil sump (1) according to claim 1, characterized in that The bottom wall of the first oil collection area (11B) and the bottom wall of the second oil collection area (11C) are arranged at an angle.

7. The oil sump (1) according to any one of claims 1 to 6, characterized in that: The bottom wall of the third oil collecting area (11D) is higher than the bottom wall of the second oil collecting area (11C).

8. The oil sump (1) according to any one of claims 1 to 6, characterized in that: The bottom wall of the third oil collection area (11D) is arranged at an angle with the bottom wall of the second oil collection area (11C).

9. A lubrication system, characterized in that: The lubrication system comprises an oil collector, an oil pump, an oil tank and an oil sump (1) according to any one of claims 1 to 8; The oil pan (1), the oil collector, the oil pump and the oil tank are connected in sequence.

10. A vehicle, characterized in that: It comprises an engine and a lubrication system as claimed in claim 9, wherein the lubrication system is located on the engine body.

Images