Oil pan, engine, hybrid powertrain, and vehicle

Abstract

An oil pan (1), comprising a housing (11) and a partition (12), wherein an oil storage cavity (111) is formed in the housing (11); the partition (12) is arranged in the housing (11) to divide the oil storage cavity (111) into a plurality of oil return areas (1111), and at least two oil return areas (1111) are communicated with each other.

Description

Oil sump, engine, hybrid assembly and vehicle

[0001] Cross-reference to related applications

[0002] The present application is based on and claims priority to Chinese Patent Application No. 2024113519320, filed on September 25, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of vehicles, in particular to an oil sump, an engine, a hybrid assembly and a vehicle. BACKGROUND

[0004] The bottom of an engine is usually provided with an oil sump, which is used to collect and store lubricating oil of the engine, so that the lubricating oil can be recycled. In the related art, the oil sump is provided with a plurality of oil storage partitions, which can collectively return oil. However, the lubricating oil is prone to concentrate in some of the oil storage partitions, which may result in that another part of the oil storage partitions cannot return oil, thereby affecting the oil return efficiency, and even leading to that a series of moving parts of the engine cannot be effectively lubricated, and there is room for improvement.

[0005] SUMMARY

[0006] The present application aims to at least partially solve one of the technical problems in the related art.

[0007] To this end, one object of the present application is to provide an oil sump with high oil return efficiency and good overall reliability.

[0008] According to the oil sump of the embodiments of the present application, the oil sump comprises a shell body, an oil storage cavity is arranged in the shell body; a partition is arranged in the shell body to divide the oil storage cavity into a plurality of oil return partitions, and at least two of the oil return partitions are in communication.

[0009] According to the oil sump of the embodiments of the present application, the oil storage cavity is divided into a plurality of oil return partitions by the partition, and at least two of the oil return partitions are in communication, so that the lubricating oil can be uniformly distributed to the plurality of oil return partitions, to ensure that the plurality of oil return partitions can collectively return oil, thereby improving the oil return efficiency. In addition, when the engine is inclined, the partition can be used to hinder the lubricating oil from converging, thereby reducing the risk of air suction and improving the reliability of the oil sump.

[0010] According to the oil sump of some embodiments of the present application, a plurality of the oil return partitions are distributed in a first direction and a plurality of the oil return partitions are distributed in a second direction, and the first direction and the second direction are arranged intersectingly.

[0011] According to some embodiments of the present application, the divider comprises a main body portion located in the middle of the oil storage cavity and a plurality of extension portions circumferentially spaced apart on the main body portion and extending towards the sidewall of the oil storage cavity, and each two adjacent extension portions define an oil return zone.

[0012] According to some embodiments of the present application, at least part of the extension portions has an oil passing gap with the sidewall of the oil storage cavity, and at least part of two adjacent oil return zones are communicated through the oil passing gap.

[0013] According to some embodiments of the present application, the bottom wall of the oil passing gap is lower than the bottom wall of the oil return zone communicated with the oil passing gap.

[0014] According to some embodiments of the present application, a part of the bottom wall of each oil return zone is provided with an oil suction sump.

[0015] According to some embodiments of the present application, a part of the bottom of the housing is concave downward to define the oil suction sump.

[0016] According to some embodiments of the present application, a part of the divider is arranged around the oil suction sump.

[0017] According to some embodiments of the present application, the depth of the oil suction sump is not less than 3mm.

[0018] According to some embodiments of the present application, at least a part of the sidewall of the oil storage cavity extends obliquely downward and towards the oil return zone to define a guide slope.

[0019] According to some embodiments of the present application, each oil return zone is correspondingly provided with the guide slope.

[0020] According to some embodiments of the present application, the protruding height of the divider is not less than 13mm.

[0021] According to some embodiments of the present application, the housing and the divider are integrally formed.

[0022] According to some embodiments of the present application, a part of the bottom wall of the housing is convex upward to define the divider.

[0023] The present application also provides an engine.

[0024] According to some embodiments of the present application, the engine comprises an oil pan according to any of the above embodiments, and a return pump assembly having a plurality of oil suction ports corresponding to the plurality of oil return zones.

[0025] According to the engine provided in the embodiments of the present application, the oil return pump assembly can return oil to multiple oil return zones through multiple oil suction ports, the oil return efficiency is high, the oil return pump assembly is not easy to be air suctioned, and the operation stability of the engine is improved.

[0026] According to the engine provided in some embodiments of the present application, a part of the partition is arranged around the oil suction port.

[0027] According to the engine provided in some embodiments of the present application, the minimum gap between the oil suction port and the bottom wall of the oil storage cavity is not less than 10 mm.

[0028] According to the engine provided in some embodiments of the present application, the bottom wall of the oil storage cavity is formed with an oil suction groove corresponding to the oil suction port, and the projection area of the oil suction port on the bottom wall of the oil storage cavity is smaller than the area of the oil suction groove.

[0029] The present application further provides a hybrid assembly.

[0030] According to the hybrid assembly provided in the embodiments of the present application, the engine according to any one of the above embodiments is included.

[0031] According to the hybrid assembly provided in the embodiments of the present application, the operation stability is high, the overall performance is good, and the overall performance of the vehicle is improved.

[0032] The present application further provides a vehicle.

[0033] According to the vehicle provided in the embodiments of the present application, the hybrid assembly according to any one of the above embodiments is included.

[0034] According to the vehicle provided in the embodiments of the present application, the overall operation stability of the vehicle is good, and the user satisfaction is improved.

[0035] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0036] FIG. 1 is a schematic view of an engine according to an embodiment of the present application;

[0037] FIG. 2 is a schematic view of the installation of an oil pan and an oil return pump assembly according to an embodiment of the present application;

[0038] FIG. 3 is a sectional view of the installation of an oil pan and an oil return pump assembly according to an embodiment of the present application;

[0039] FIG. 4 is a top view of an oil pan according to an embodiment of the present application;

[0040] FIG. 5 is a bottom view of an oil return pump assembly according to an embodiment of the present application;

[0041] FIG. 6 is a sectional view of an oil sump according to an embodiment of the present application;

[0042] FIG. 7 is a schematic view of a hybrid assembly according to an embodiment of the present application;

[0043] FIG. 8 is a schematic view of a vehicle according to an embodiment of the present application.

[0044] Reference signs: hybrid assembly 1000, vehicle 2000, engine 100, first direction F1, second direction F2, oil sump 1, housing 11, oil storage cavity 111, oil return partition 1111, oil inlet opening 1112, oil suction groove 112, guide slope 113, partition 12, main body 121, extension 122, oil passing gap 13, oil return pump assembly 2, oil suction port 21, main cylinder body 3. DETAILED DESCRIPTION

[0045] Embodiments of the present application are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0046] Hereinafter, with reference to the drawings, an oil sump 1 according to an embodiment of the present application is described.

[0047] According to FIGS. 1-8, the oil sump 1 according to an embodiment of the present application comprises a housing 11 and a partition 12, the housing 11 is provided with an oil storage cavity 111, and the top of the oil storage cavity 111 is provided with an oil inlet opening 1112; the partition 12 is arranged in the housing 11 to divide the oil storage cavity 111 into a plurality of oil return partitions 1111, and at least two oil return partitions 1111 are communicated.

[0048] Therefore, the partition 12 can be used to hinder the accumulation of lubricating oil, and the communication of the at least two oil return partitions 1111 can make the lubricating oil more evenly dispersed to the plurality of oil return partitions 1111, so as to reduce the risk of suction of the oil suction port 21, so that the plurality of oil return partitions 1111 can return oil together, ensuring the oil return efficiency and improving the reliability of the oil sump 1.

[0049] Firstly, as shown in FIGS. 1-5, the engine 100 comprises an oil pan 1, a main cylinder block 3 and an oil return pump assembly 2, the oil pan 1 is arranged at the lower part of the main cylinder block 3 and communicates with the main cylinder block 3, so as to close the main cylinder block 3 at the lower part of the main cylinder block 3, prevent the lower part of the main cylinder block 3 from entering impurities, and the oil pan 1 can be used to temporarily collect and store the lubricating oil flowing back from the parts (such as the crankshaft surface, the intake VVT, the exhaust VVT, etc.) in the main cylinder block 3 which need to be lubricated, so as to realize the recycling of the lubricating oil. At the same time, the oil return pump assembly 2 can be installed in the oil pan 1, so that the oil return pump assembly 2 can return the lubricating oil in the oil pan 1.

[0050] The oil pan 1 comprises a shell 11 and a partition 12, the shell 11 is provided with an oil storage cavity 111, and the top of the oil storage cavity 111 is provided with an oil inlet opening 1112 opposite to the main cylinder block 3, so that the lubricating oil in the main cylinder block 3 can flow into the oil storage cavity 111 through the oil inlet opening 1112 and be stored in the oil storage cavity 111.

[0051] The partition 12 is arranged in the shell 11, and the partition 12 is used to separate the oil storage cavity 111 into a plurality of oil return sub-zones 1111, so that most of the lubricating oil falling into the oil pan 1 can be concentrated in each oil return sub-zone 1111, the plurality of oil return sub-zones 1111 are relatively independent, and at least two oil return sub-zones 1111 are communicated. For example, the oil return sub-zone 1111 can be four, any adjacent two of the four oil return sub-zones 1111 are communicated, so that the four oil return sub-zones 1111 are communicated with each other, so that the lubricating oil can be uniformly dispersed into the four oil return sub-zones 1111; or the four oil return sub-zones 1111 can be divided into two groups, and the two oil return sub-zones 1111 in each group are communicated, so that the lubricating oil can be uniformly dispersed in the two communicated oil return sub-zones 1111. In this way, the lubricating oil can be more uniformly distributed into the plurality of oil return sub-zones 1111, so that each oil return sub-zone 1111 has sufficient lubricating oil.

[0052] At the same time, a plurality of oil suction ports 21 can be arranged on the oil return pump assembly 2, the plurality of oil suction ports 21 correspond to and communicate with the plurality of oil return sub-zones 1111, so that the oil return pump assembly 2 can suck oil from the plurality of oil return sub-zones 1111 through the plurality of oil suction ports 21.

[0053] It should be noted that, due to the difference in the amount of lubricating oil returned to each position of the master cylinder body 3, the amount of lubricating oil in each oil return partition 1111 is uneven after being separated by the partition 12, that is, the lubricating oil will concentrate on one side of the oil pan 1, which may cause the partial oil suction port 21 of the oil return pump assembly 2 to be empty, thereby causing a series of moving parts of the engine 100 to be ineffective lubricated. In the related art, multiple oil return partitions 1111 are provided to block the flow of lubricating oil to prevent the oil return pump assembly 2 from being empty, but the amount of returned oil in the multiple oil return partitions 1111 is insufficient and uneven, and the oil return pump assembly 2 still has the risk of being empty.

[0054] To solve the above problems, the oil storage cavity 111 is divided into multiple oil return partitions 1111, and at least two oil return partitions 1111 are communicated, so that the lubricating oil in the oil storage cavity 111 can be more uniformly distributed in the multiple oil return partitions 1111, so that the oil return pump assembly 2 can simultaneously return oil from the multiple oil return partitions 1111, thereby improving the oil return efficiency. In addition, when the engine 100 is tilted, such as left tilt, right tilt, forward tilt or backward tilt, etc., the partition 12 can hinder the lubricating oil from gathering, thereby enabling the oil return pump assembly 2 to still return oil from the multiple oil return partitions 1111, and improving the oil return stability of the oil return pump assembly 2.

[0055] According to the oil pan 1 of the embodiment of the present application, the oil storage cavity 111 is divided into multiple oil return partitions 1111 by the partition 12, and at least two oil return partitions 1111 are communicated, so that the lubricating oil can be more uniformly distributed in the multiple oil return partitions 1111, thereby ensuring that the multiple oil return partitions 1111 can return oil together, improving the oil return efficiency, and when the engine 100 is tilted, the partition 12 can be used to hinder the lubricating oil from gathering, thereby reducing the risk of emptying and improving the reliability of the oil pan 1.

[0056] In some embodiments of the present application, a plurality of oil return partitions 1111 are distributed in the first direction F1 and a plurality of oil return partitions 1111 are distributed in the second direction F2, and the first direction F1 and the second direction F2 are intersected.

[0057] For example, the first direction F1 can be set as the front-back direction, and the second direction F2 can be set as the left-right direction, and the oil return partitions 1111 can be divided into two groups, the two groups of oil return partitions 1111 are spaced apart along the front-back direction, and each group has two oil return partitions 1111, and the two oil return partitions 1111 of each group are spaced apart along the left-right direction.

[0058] Through the above arrangement, the division of the oil return partition 111 can be more reasonable, and when the engine 100 is in an extreme working condition, such as left front tilt, right rear tilt, etc., the multiple oil return partitions 1111 can still return oil together, thereby improving the oil return efficiency and reducing the risk of emptying.

[0059] In some embodiments of the present application, the partition 12 comprises a main body portion 121 located in the middle of the oil storage cavity 111 and a plurality of extension portions 122 spaced apart along the circumference of the main body portion 121 and extending towards the side wall of the oil storage cavity 111, and each two adjacent extension portions 122 define an oil return sub-zone 1111.

[0060] For example, as shown in FIG. 4, the partition 12 comprises a main body portion 121 located in the middle of the oil storage cavity 111 and a plurality of extension portions 122 spaced apart along the circumference of the main body portion 121, and each extension portion 122 has one end connected to the main body portion 121 and the other end extending towards the side wall of the oil storage cavity 111, and each two adjacent extension portions 122 define an oil return sub-zone 1111.

[0061] Through the above arrangement, the distribution of the oil return sub-zones 1111 is more uniform, which is beneficial to improve the design rationality of the oil pan 1 and the modal frequency of the oil pan 1, thereby improving the NVH performance of the engine 100.

[0062] In some embodiments of the present application, as shown in FIG. 4, at least part of the extension portions 122 and the side wall of the oil storage cavity 111 can be arranged to have an oil passing gap 13, and at least part of each two adjacent oil return sub-zones 1111 are communicated through the oil passing gap 13. Through the above arrangement, the oil passing gap 13 is arranged away from the main body portion 121, and when the engine 100 is tilted, the lubricating oil is less likely to flow to another oil return sub-zone 1111 through the oil passing gap 13, thereby improving the blocking effect of the partition 12 and being beneficial to ensure the oil return efficiency of the oil pan 1.

[0063] In some embodiments of the present application, as shown in FIG. 4, the end of the extension portion 122 away from the main body portion 121 is connected to the side wall of the oil storage cavity 111, and a through hole is arranged on the extension portion 122, and the through hole is adapted to communicate each two adjacent oil return sub-zones 1111. Thus, it is beneficial to meet different design requirements.

[0064] In some embodiments of the present application, as shown in FIG. 4 and FIG. 6, the bottom wall of the oil passing gap 13 can be arranged to be lower than the bottom wall of the oil return sub-zone 1111 communicated with the oil passing gap 13, so that the lubricating oil in the corresponding oil return sub-zone 1111 can flow into the oil passing gap 13. Through the above arrangement, the lubricating oil in the plurality of oil return sub-zones 1111 is more uniform, thereby improving the design rationality of the oil pan 1.

[0065] In some embodiments of the present application, as shown in FIGS. 3-5, a portion of the bottom wall of each oil return sub-zone 1111 can be provided with an oil suction groove 112, which is arranged opposite to the oil suction port 21 of the oil return pump assembly 2, so that the oil suction port 21 can return oil from the oil suction groove 112.

[0066] It can be understood that by providing the oil suction groove 112, the lubricating oil in the oil return sub-zone 1111 can be collected into the oil suction groove 112, so that the oil suction port 21 can more easily extract the lubricating oil, and when the engine 100 is tilted, the oil suction groove 112 can hinder the flow of the lubricating oil to reduce the outflow of the lubricating oil, thereby improving the oil return stability.

[0067] In some embodiments of the present application, as shown in FIG. 3, a portion of the bottom of the housing 11 can be recessed downward to define the oil suction groove 112. Thus, the structure of the housing 11 can be simplified, the processing difficulty of the oil suction groove 112 is reduced, and the practicability of the oil pan 1 is improved.

[0068] In some embodiments of the present application, as shown in FIG. 4, a portion of the partition 12 can be arranged around the oil suction groove 112. Through the above arrangement, when the engine 100 shakes, the partition 12 can hinder the lubricating oil to some extent to reduce the shaking degree of the oil in the oil return sub-zone 1111, especially the oil in the oil suction groove 112, which is beneficial to reduce the risk of suctioning air by the oil suction port 21, thereby improving the stability of the engine 100.

[0069] In some embodiments of the present application, as shown in FIG. 3, the depth H1 of the oil suction groove 112 can be not less than 3 mm, for example, 3 mm, 4 mm, 5 mm, etc. Through the above arrangement, the oil suction groove 112 can be more easily processed, the processing difficulty of the oil pan 1 is reduced, and the oil suction groove 112 can have a better effect on collecting the lubricating oil, thereby ensuring the oil return stability.

[0070] In some embodiments of the present application, as shown in FIG. 4, at least a portion of the side wall of the oil storage cavity 111 can extend downward and toward the oil return sub-zone 1111 to define a guide slope 113, which is used to guide the lubricating oil flowing from the main cylinder block 3 into the oil storage cavity 111. Thus, the speed of the oil pan 1 collecting the lubricating oil can be improved, which is beneficial to improve the circulation speed of the lubricating oil, thereby improving the overall performance of the engine 100.

[0071] In some embodiments of the present application, as shown in FIG. 4, a guide slope 113 can be arranged corresponding to each oil return partition 1111. That is, a guide slope 113 can be arranged on the side wall of the oil storage cavity 111 corresponding to each oil return partition 1111. In this way, the speed of collecting lubricating oil by the oil pan 1 can be improved, and the lubricating oil in the multiple oil return partitions 1111 can be more uniform, thereby improving the practicability of the oil pan 1.

[0072] In some embodiments of the present application, as shown in FIG. 3, the protruding height H2 of the partition 12 can be not less than 13 mm, for example, 14 mm, 15 mm, 16 mm, etc. Through the above arrangement, the blocking effect of the partition 12 can be ensured, so that the upper oil return partition 1111 can have sufficient lubricating oil, which is beneficial to prevent air suction, thereby improving the design rationality of the oil pan 1.

[0073] In some embodiments of the present application, as shown in FIG. 3, the shell 11 and the partition 12 can be an integral molding, for example, the shell 11 and the partition 12 can be integrally pressure cast. Through the above arrangement, the processing difficulty of the oil pan 1 can be reduced, and the structural strength of the oil pan 1 can be higher, thereby improving the reliability of the oil pan 1.

[0074] In some embodiments of the present application, as shown in FIG. 3, a part of the bottom wall of the shell 11 can be protruded upward to define the partition 12. In this way, the material can be saved, the cost can be reduced, and the overall weight of the oil pan 1 can be lighter, which is beneficial to realize the lightweight design.

[0075] The present application also provides an engine 100.

[0076] According to the engine 100 provided by the embodiments of the present application, the engine 100 comprises an oil pan 1 and an oil return pump assembly 2, the oil pan 1 is the oil pan 1 according to any of the above embodiments, and the oil return pump assembly 2 has multiple oil suction ports 21 corresponding to the multiple oil return partitions 1111.

[0077] For example, referring to FIGS. 1-6, the engine 100 comprises the oil pan 1 and a main cylinder block 3, the oil pan 1 is arranged at the lower part of the main cylinder block 3 and communicates with the main cylinder block 3, so as to close the main cylinder block 3 at the lower part of the main cylinder block 3 and prevent impurities from entering the lower part of the main cylinder block 3, and the oil pan 1 can be used to temporarily collect and store the lubricating oil flowing back from the parts (such as the crankshaft surface, the intake VVT, the exhaust VVT, etc.) in the main cylinder block 3 that need to be lubricated, so as to realize the recycling of the lubricating oil.

[0078] The engine 100 further comprises an oil return pump assembly 2 and an oil storage device, the oil return pump assembly 2 is installed in the oil pan 1, and the oil return pump assembly 2 is connected with the oil storage device, so that the oil return pump assembly 2 can return the lubricating oil in the oil pan 1 and store the lubricating oil in the oil storage device.

[0079] The oil sump 1 is provided with an oil storage cavity 111, the oil storage cavity 111 is divided into a plurality of oil return partitions 1111, and a plurality of oil suction ports 21 are arranged on the bottom wall of the oil return pump assembly 2, the plurality of oil suction ports 21 correspond to and are connected to the plurality of oil return partitions 1111 one by one, so that the oil return pump assembly 2 can return oil to the corresponding oil return partitions 1111 through the plurality of oil suction ports 21. For example, the oil return partitions 1111 can be provided with four, and the oil suction ports 21 can be correspondingly provided with four, and the four oil suction ports 21 correspond to and communicate with the four oil return partitions 1111 one by one.

[0080] According to the engine 100 provided in the embodiments of the present application, the oil return pump assembly 2 can return oil to the plurality of oil return partitions 1111 through the plurality of oil suction ports 21, the oil return efficiency is high, the oil return pump assembly 2 is not easy to be sucked empty, and the running stability of the engine 100 is improved.

[0081] In some embodiments of the present application, as shown in FIG. 3, the minimum gap H3 between the oil suction port 21 and the bottom wall of the oil storage cavity 111 can be not less than 10 mm, for example, 11 mm, 12 mm, 13 mm, etc. It should be emphasized that the part of the bottom wall of the oil storage cavity 111 corresponding to the oil suction port 21 can be a plane or a non-plane, as long as the minimum gap H3 between the part of the bottom wall of the oil storage cavity 111 corresponding to the oil suction port 21 and the oil suction port 21 is not less than 10 mm.

[0082] It should be noted that during the operation of the engine 100, the lubricating oil will be mixed with some water vapor, resulting in the existence of liquid water in the oil storage cavity 111. In a low temperature environment, ice may be formed in the oil sump 1, and the ice may block the oil suction port 21. In view of the above problem, the minimum gap between the oil suction port 21 and the bottom wall of the oil storage cavity 111 can be set to be not less than 10 mm, so that the ice formed on the bottom wall of the oil storage cavity 111 can keep a sufficient distance from the oil suction port 21. Thus, the risk of blocking the oil suction port 21 can be reduced, and the stability of the engine 100 is improved.

[0083] In some embodiments of the present application, as shown in FIG. 3, an oil suction groove 112 can be formed on the bottom wall of the oil storage cavity 111 corresponding to the oil suction port 21, so that the oil suction port 21 can return oil from the oil suction groove 112. The projection area of the oil suction port 21 on the bottom wall of the oil storage cavity 111 can be set to be smaller than the area of the oil suction groove 112, so that the oil suction port 21 can coincide with the oil suction groove 112 in the up-down direction, and the distance between the oil suction port 21 and the bottom wall of the oil storage cavity 111 can be kept equal.

[0084] Through the above arrangement, the influence of the bottom wall of the oil storage cavity 111 on the lubricating oil can be reduced, so that the lubricating oil is less likely to form a turbulent flow, the flow speed of the lubricating oil is improved, and the oil suction efficiency of the oil pump assembly 2 is improved.

[0085] The application further provides a hybrid assembly 1000.

[0086] As shown in FIG. 7, the hybrid assembly 1000 according to the embodiment of the application comprises the engine 100 according to any of the above embodiments.

[0087] The hybrid assembly 1000 according to the embodiment of the application has high operation stability and good overall performance, and is beneficial to improving the overall performance of the vehicle 2000.

[0088] The application further provides a vehicle 2000.

[0089] As shown in FIG. 8, the vehicle 2000 according to the embodiment of the application comprises the hybrid assembly 1000 according to any of the above embodiments. It should be noted that the oil pan 1 is located below the hybrid assembly 1000. Due to structural limitations, the oil pan 1 is configured as a flat structure, and therefore a plurality of oil suction ports 21 can be arranged to make the overall oil pump assembly 2 more flat, so that the oil pump assembly 2 can be arranged in the oil pan 1.

[0090] The vehicle 2000 according to the embodiment of the application has good overall operation stability, and is beneficial to improving the satisfaction of users.

[0091] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0092] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0093] In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0094] In this application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0095] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0096] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An oil sump (1), wherein The shell (11) is internally provided with an oil storage cavity (111); A partition (12) is arranged in the shell (11) to divide the oil storage cavity (111) into multiple oil return sub-zones (1111), and at least two of the oil return sub-zones (1111) are communicated. Multiple oil return sub-zones (1111) are distributed in a first direction (F1), and multiple oil return sub-zones (1111) are distributed in a second direction (F2), the first direction (F1) and the second direction (F2) are intersected.

2. The oil sump (1) according to claim 1, wherein The partition (12) comprises a main body portion (121) and multiple extension portions (122), the main body portion (121) is located at the middle of the oil storage cavity (111), multiple extension portions (122) are connected on the main body portion (121) in a circumferential direction and extend towards the side wall of the oil storage cavity (111), and two adjacent extension portions (122) are adapted to define the oil return sub-zone (1111).

3. An oil sump (1) according to any one of claims 1-2, wherein, At least part of the extension portion (122) and the side wall of the oil storage cavity (111) have an oil passing gap (13), and at least part of two adjacent oil return sub-zones (1111) are communicated through the oil passing gap (13).

4. The oil sump (1) according to claim 3, wherein The bottom wall of the oil passing gap (13) is lower than the bottom wall of the oil return sub-zone (1111) communicated with the oil passing gap (13).

5. The oil sump (1) according to claim 4, wherein A part of the bottom wall of each oil return sub-zone (1111) is provided with an oil suction sump (112).

6. An oil sump (1) according to any one of claims 1-5, wherein, A part of the bottom of the shell (11) is concave downward to define the oil suction sump (112).

7. An oil sump (1) according to claim 6, wherein A part of the partition (12) is arranged around the oil suction sump (112).

8. The oil sump (1) according to claim 7, wherein The depth of the oil suction sump (112) is not less than 3mm.

9. An oil sump (1) according to any one of claims 6-7, wherein, At least a part of the side wall of the oil storage cavity (111) extends obliquely downward and towards the oil return sub-zone (1111) to define a guide slope (113).

10. An oil sump (1) according to any one of claims 1-9, wherein, Each oil return sub-zone (1111) is correspondingly provided with the guide slope (113).

11. The oil sump (1) according to claim 10, wherein The protruding height of the partition (12) is not less than 13mm.

12. The oil sump (1) according to any one of claims 1-11, wherein, The shell (11) and the partition (12) are integrally formed.

13. The oil sump (1) according to any one of claims 1-12, wherein, A part of the bottom wall of the shell (11) is convex upward to define the partition (12).

14. The oil sump (1) according to claim 13, wherein The oil pan (1) is the oil pan (1) according to any one of claims 1-14.

15. An engine (100), wherein The oil return pump assembly (2) has multiple oil suction ports (21), and multiple oil suction ports (21) correspond one-to-one to multiple oil return sub-zones (1111). The minimum gap between the oil suction port (21) and the bottom wall of the oil storage cavity (111) is not less than 10mm. The bottom wall of the oil storage cavity (111) is correspondingly provided with an oil suction sump (112) corresponding to the oil suction port (21), and the projection area of the oil suction port (21) on the bottom wall of the oil storage cavity (111) is smaller than the area of the oil suction sump (112).

16. The engine (100) of claim 15, wherein, The engine (100) according to any one of claims 15-17.

17. The engine (100) of any one of claims 15-16, wherein, The engine (100) according to any one of claims 15-17.

18. A hybrid assembly (1000), wherein ​ ​ 19. A vehicle (2000), wherein ​ The hybrid assembly (1000) according to claim 18.

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