Housing assembly, drive assembly, and vehicle

Abstract

The present application relates to the technical field of vehicles, in particular to a housing assembly, a drive assembly and a vehicle. The housing assembly comprises a first oil pan, a second oil pan, a distribution structure and a first housing and a second housing connected with each other. The bottom of the first housing is provided with a first oil return port and a second oil return port, and the bottom of the second housing is provided with a third oil return port. The first oil pan is connected to the bottom of the first housing and surrounds a first oil storage cavity. The first oil storage cavity is in communication with the first oil return port and the second oil return port. The second oil pan is connected to the bottom of the second housing and surrounds a second oil storage cavity. The second oil storage cavity is in communication with the third oil return port. The first oil pan is used for arranging a filter, and the first oil return port and the second oil return port are suitable for being located on both sides of the filter in a first direction. The second oil pan is in communication with the first oil pan, and the distribution structure is arranged in the first oil pan. The housing assembly provided by the present application can reduce the air suction of the filter in the oil pan.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically to housing assemblies, drive assemblies, and vehicles. Background Technology

[0002] Typically, a vehicle's drivetrain includes a housing assembly and a power source, such as an electric motor. The electric motor is housed within the housing assembly, which provides support and protection for it. Additionally, the housing assembly can be filled with fluid to lubricate and cool the electric motor.

[0003] The existing housing assembly includes a first housing and an oil pan. The oil pan is connected to the bottom of the first housing and communicates with it. The first housing is suitable for housing an electric motor, and the oil pan is suitable for housing a filter. After the oil in the first housing flows into the oil pan, the filter can filter the oil, and then the oil can be reintroduced into the first housing to lubricate and cool the electric motor. However, the structural design of the existing housing assembly has shortcomings, which can easily lead to cavitation when the filter draws in oil. This reduces the lubrication and cooling effect of the oil on the electric motor and is accompanied by pulse noise. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a housing assembly, a drive assembly, and a vehicle, which aims to solve the problem of how to reduce air intake of the filter in the oil pan.

[0005] In a first aspect, embodiments of this application provide a housing assembly, which includes a first oil pan, a second oil pan, a diversion structure, and a first housing and a second housing connected to each other. The bottom of the first housing is provided with a first oil return port and a second oil return port, and the bottom of the second housing is provided with a third oil return port.

[0006] The first oil pan is connected to the bottom of the first housing and forms a first oil storage cavity. The first oil storage cavity is connected to both the first oil return port and the second oil return port. The second oil pan is connected to the bottom of the second housing and forms a second oil storage cavity. The second oil storage cavity is connected to the third oil return port.

[0007] The first oil pan is used to house a filter, and the first oil return port and the second oil return port are adapted to be located on both sides of the filter in a first direction, which is perpendicular to the arrangement direction of the first housing and the first oil pan.

[0008] The second oil pan is connected to the first oil pan. The diversion structure is located in the first oil pan and is used to divert the oil in the second oil pan to both sides of the filter in a second direction. The second direction is perpendicular to the first direction and perpendicular to the arrangement direction of the first housing and the first oil pan.

[0009] According to the above-mentioned technical means, the housing assembly provided in this application includes a first housing adapted to house an electric motor, a second housing adapted to house a reducer, and a first oil pan connected to the bottom of the first housing and used to house a filter. This housing assembly configuration allows for a more compact drive assembly, thereby increasing the power density of the drive assembly.

[0010] Power density refers to the ratio of the maximum continuous power or maximum peak power of the drive assembly to its volume.

[0011] By providing a first oil return port and a second oil return port at the bottom of the first housing, both of which are connected to the first oil storage cavity formed by the first oil sump, oil can flow from the first housing into the first oil sump through the first oil return port and the second oil return port. Since the first oil return port and the second oil return port are suitable to be located on both sides of the filter in the first direction, oil can flow from both sides of the filter in the first direction to the filter. Thus, when the filter draws in oil, oil enters the filter's suction port from both sides of the filter in the first direction, which facilitates a relatively uniform flow of oil from both sides of the filter in the first direction, reducing the risk of air suction caused by uneven oil flow on both sides of the filter in the first direction.

[0012] Furthermore, by providing a third oil return port at the bottom of the second housing, the second oil pan is connected to the bottom of the second housing. The second oil storage chamber enclosed by the second oil pan is connected to the third oil return port. In this way, oil can flow from the second housing into the second oil pan through the third oil return port. Since the second oil pan is connected to the first oil pan, oil can continue to flow from the second oil pan into the first oil pan, thus facilitating the absorption and filtration of the oil returning from the second housing by the filter.

[0013] By setting the diversion structure in the first oil pan to divert the oil in the second oil pan to both sides of the filter in the second direction, the oil can flow from both sides of the filter in the second direction to the filter. Combined with the above-mentioned setting of the first oil return port and the second oil return port, the oil can flow to the filter more evenly from all sides of the filter, avoiding the filter from being sucked into the air.

[0014] In some embodiments, the diversion structure is adapted to cooperate with the filter to divide the first oil storage chamber enclosed by the first oil pan into a first chamber, a second chamber, a third chamber, and a fourth chamber, wherein the first chamber and the second chamber are respectively located on both sides of the filter in the first direction, and the third chamber and the fourth chamber are respectively located on both sides of the filter in the second direction.

[0015] The first oil return port is connected to the first chamber, the second oil return port is connected to the second chamber, and the third chamber and the fourth chamber are both connected to the second oil storage chamber.

[0016] According to the above-mentioned technical means, in this way, oil can flow from the first return port into the first chamber, from the second return port into the second chamber, and further flow into the filter from both sides in the first direction. Simultaneously, oil can flow from the second oil sump into the third and fourth chambers, and further flow into the filter from both sides in the second direction. This allows the oil to flow relatively evenly around the filter, preventing cavitation. The internal space of the first oil sump is divided into the first to fourth chambers through the combination of the flow divider structure and the filter, resulting in a simple structure that simplifies the design of the flow divider structure and reduces the manufacturing cost of the housing components.

[0017] In some embodiments, the first oil pan includes a first wall plate and a second wall plate disposed opposite to each other along the first direction, and a third wall plate and a fourth wall plate disposed opposite to each other along the second direction.

[0018] The diversion structure includes a first partition structure and a second partition structure. The first partition structure is disposed between the filter and the first wall panel, and together with the filter and / or the first wall panel, forms the first chamber. The second partition structure is disposed between the filter and the second wall panel, and together with the filter and / or the second wall panel, forms the second chamber.

[0019] The first partition structure, the second partition structure, and the third wall panel form the third chamber, and the first partition structure, the second partition structure, and the fourth wall panel form the fourth chamber.

[0020] According to the above-mentioned technical means, by setting a first baffle structure and a second baffle structure in the first oil pan, and cooperating with the filter and the first to fourth wall plates, the first to fourth chambers are separated in the first oil pan. This can make full use of the internal space of the first oil pan. In addition, by cooperating with the filter and the first to fourth wall plates, the first to fourth chambers are separated in the first oil pan. This design helps to reduce the material used in the diversion structure, thereby reducing the manufacturing cost of the housing assembly.

[0021] In some embodiments, the second wall panel is located between the first wall panel and the second oil pan; The second partition structure includes a first sub-plate and a second sub-plate spaced apart along the second direction, the first sub-plate, the second sub-plate, the filter, and the second wall panel forming the second chamber.

[0022] The first sub-plate, the first partition structure, the filter, and the third wall panel form the third chamber, and the second sub-plate, the first partition structure, the filter, and the fourth wall panel form the fourth chamber.

[0023] According to the above technical means, the first sub-plate, the second sub-plate, the first partition structure, the filter, the second wall panel to the fourth wall panel are used to form the second chamber to the fourth chamber. The second partition structure is designed to be composed of the first sub-plate and the second sub-plate. The structure is relatively simple, easy to manufacture and install, and can reduce the manufacturing cost of the shell assembly.

[0024] In some embodiments, the housing assembly further includes a first conduit and a second conduit, the first conduit connecting the third chamber and the second oil reservoir, and the second conduit connecting the fourth chamber and the second oil reservoir.

[0025] Based on the aforementioned technical means, this allows for communication between the second and third oil storage chambers, as well as between the second and fourth oil storage chambers. Since pipes are common items used to achieve communication functions and are easy to manufacture, this helps reduce the manufacturing cost of the casing assembly.

[0026] In some embodiments, the housing assembly further includes a flow guiding structure disposed on the second oil pan and located on the side of the third oil return port near the first oil pan. The flow guiding structure is located between the first pipe and the second pipe and is used to guide the oil in the second oil pan to the first pipe and the second pipe.

[0027] According to the above-mentioned technical means, when the oil flows from the second housing to the second oil pan, and then from the second oil pan into the first oil pan through the first and second pipes, the oil can be diverted to make the amount of oil flowing into the third chamber through the first pipe more even with the amount of oil flowing into the fourth chamber through the second pipe. This allows the oil to flow more evenly into the filter from both sides in the second direction, thus preventing cavitation.

[0028] In some embodiments, the flow guiding structure includes a first flow guide plate and a second flow guide plate arranged along a second direction. The end of the first flow guide plate near the third oil return port is connected to the end of the second flow guide plate near the third oil return port, and the first flow guide plate and the second flow guide plate gradually move away from each other along the direction from the second oil pan to the first oil pan.

[0029] According to the aforementioned technical means, the first and second guide plates cooperate to divide the internal space of the second oil pan into a fifth chamber and a sixth chamber. The fifth chamber corresponds to the first pipe, and the sixth chamber corresponds to the second pipe. Thus, when oil flows from the second housing to the second oil pan, some oil can be guided to the fifth chamber and then into the first pipe, with the first guide plate facilitating smoother flow. The remaining oil can be guided to the sixth chamber and then into the second pipe, with the second guide plate facilitating smoother flow.

[0030] In some embodiments, the second housing further includes a fourth oil return port and a fifth oil return port, wherein along the second direction, the fourth oil return port is located on one side of the third oil return port, and the fifth oil return port is located on the other side of the third oil return port.

[0031] According to the aforementioned technical means, by opening a fourth and fifth oil return port on the second housing, the speed at which oil flows from the second housing into the second oil pan can be increased. This prevents excessive oil accumulation in the second housing, thus avoiding immersion of the reducer in oil and reducing its transmission efficiency. Furthermore, along the second direction, placing the fourth oil return port on one side of the third oil return port and the fifth oil return port on the other side of the third oil return port ensures a relatively balanced flow of oil between the first and second pipes.

[0032] In some embodiments, the bottom wall of the second oil pan is higher than the bottom wall of the first oil pan, and both the first pipe and the second pipe extend obliquely away from the second housing in the direction from the second oil pan to the first oil pan.

[0033] According to the above-mentioned technical means, by setting the bottom wall of the second oil pan to be higher than that of the first oil pan, under the action of gravity, the oil in the second pan will flow into the first oil pan through the first and second pipes, facilitating oil accumulation and making it easier for the oil to be drawn into the filter. By setting both the first and second pipes to extend at an angle away from the second pan, it is easier for the oil to flow into the first oil pan along the first and second pipes.

[0034] In some embodiments, both the first pipe and the second pipe are connected to the end of the second oil pan near the first oil pan, and the bottom wall of the second oil pan extends obliquely away from the second oil pan in the direction from the second oil pan to the first oil pan.

[0035] Based on the above technical means, the bottom wall of the second oil pan can guide the oil in the second oil pan to flow to the first and second pipes, thereby increasing the flow rate of the oil and facilitating the rapid accumulation of oil in the first oil pan, ensuring sufficient oil at the oil inlet of the filter and preventing air suction.

[0036] Secondly, embodiments of this application provide a drive assembly including any of the aforementioned housing components, a motor, a reducer, and a filter. The motor is disposed within the first housing, the reducer is disposed within the second housing, and the motor is drively connected to the reducer. The filter is disposed within the first oil pan.

[0037] In some embodiments, the bottom wall of the first oil pan is provided with an oil return groove, which is a recess on the side surface of the bottom wall of the first oil pan that is close to the filter and away from the filter.

[0038] In the vertical direction, the projection of the oil inlet of the filter onto the bottom wall of the first oil pan is located within the projection of the return oil groove onto the bottom wall of the first oil pan.

[0039] According to the above-mentioned technical means, by setting an oil return groove on the bottom wall of the first oil pan, the oil flowing into the first oil pan from the first housing and the second housing can easily accumulate in the oil return groove. Furthermore, in the vertical direction, the projection of the filter's oil suction port on the bottom wall of the first oil pan is located within the projection of the oil return groove on the bottom wall of the first oil pan, that is, the filter's oil suction port faces the oil return groove. Thus, when the filter draws oil from the first oil pan, the oil easily accumulates in the oil return groove, facilitating the filter's intake of oil and effectively preventing the filter from cavitating, thereby ensuring the lubrication and cooling effect of the oil on the motor and reducer.

[0040] Thirdly, embodiments of this application provide a vehicle including any of the aforementioned drive assemblies. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application will be described below.

[0042] Figure 1 A schematic diagram of a vehicle provided for some embodiments of this application; Figure 2 for Figure 1 A schematic diagram of the drive assembly in the vehicle shown. Figure 3 for Figure 2 A partial cross-sectional view of the drive assembly shown; Figure 4 for Figure 2 Top view of the drive assembly; Figure 5 for Figure 2 The diagram shows a cross-sectional view of the drive assembly.

[0043] Explanation of reference numerals in the attached figures: 01-Vehicle; 100-Drive assembly; 10-Housing assembly; 1-First housing; 11-First oil return port; 12-Second oil return port; 2-Second housing; 21-Third oil return port; 22-Fourth oil return port; 23-Fifth oil return port; 3-First oil pan; 31-Oil return groove; V1-First chamber; V2-Second chamber; V3-Third chamber; V4-Fourth chamber; 36-First wall panel; 37-Second wall panel; 38-Third wall panel; 39-Fourth wall panel; 4-Second oil pan; 5-Diverter structure; 51-First partition structure; 52-Second partition structure; 521-First sub-plate; 522-Second sub-plate; 6-First diverter pipe structure; 7-Second diverter pipe structure; 8-First pipe; 9-Second pipe; 101-Guide structure; 1011-First guide plate; 1012-Second guide plate; 20-Electric motor; 30-Reducer; 40-Filter; 50-Oil pump; 60-Oil cooler; 200-Body structure; 300-Wheel; F1-First direction; F2-Second direction; C1-First oil reservoir; C2-Second oil reservoir. Detailed Implementation

[0044] The terms “first,” “second,” etc., are used for descriptive purposes only and have no sequential or technical meaning, nor should they be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0045] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the two parts can rotate relative to each other after connection. "Sliding connection" refers to a connection where the two parts can slide relative to each other after connection.

[0046] The terms "parallel" and "perpendicular" are relative to the current technological level, not absolute mathematical definitions. Slight deviations are permissible; approximations of parallelism or perpendicularity are acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, with the angle between them ranging from 0 to 5 degrees. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, with the angle between them ranging from 85 to 95 degrees.

[0047] The embodiments of this application will now be described with reference to the accompanying drawings.

[0048] See Figure 1 Some embodiments of this application provide a vehicle 01. For example, vehicle 01 may be a pure electric vehicle, a hybrid electric vehicle, or a gasoline vehicle. For another example, vehicle 01 may be a passenger vehicle or a cargo vehicle.

[0049] In some embodiments, vehicle 01 includes a body structure 200, wheels 300, and a drive assembly 100. Both wheels 300 and drive assembly 100 are connected to the body structure 200, and the drive assembly 100 and wheels 300 are connected by a transmission connection. The drive assembly 100 can drive the wheels 300 to rotate, thereby moving vehicle 01. The body structure 200 provides a passenger space for occupants to drive and ride in vehicle 01.

[0050] In some embodiments, see Figure 2 The drive assembly 100 includes a housing assembly 10, a motor 20, a reducer 30, and a filter 40. The housing assembly 10 includes a first housing 1, a second housing 2, a first oil pan 3, and a second oil pan 4. The first housing 1 is connected to the first oil pan 3, and the second oil pan 4 is connected to both the second housing 2 and the first oil pan 3. The motor 20 is located within the first housing 1, the reducer 30 is located within the second housing 2, and the motor 20 and reducer 30 are drively connected. The filter 40 is located within the first oil pan 3.

[0051] In this way, the cooperation between the electric motor 20 and the reducer 30 facilitates the provision of a suitable power output to the vehicle 01, enabling the vehicle 01 to possess good driving performance. By placing the electric motor 20 in the first housing 1, the first housing 1 can provide support and protection for the electric motor 20. By placing the reducer 30 in the second housing 2, the second housing 2 can provide support and protection for the reducer 30.

[0052] For example, in the drive assembly 100, the motor 20 and the reducer 30 can be cooled and lubricated by oil.

[0053] By placing the filter 40 in the first oil pan 3, and since the first housing 1 is connected to the first oil pan 3, the second housing 2 is connected to the second oil pan 4, and the second oil pan 4 is connected to the first oil pan 3, the oil used for cooling and lubricating the motor 20 and reducer 30 can collect in the first oil pan 3 and be further filtered by the filter 40. This facilitates the filtration of impurities in the oil and helps extend the service life of the motor 20 and reducer 30.

[0054] In some embodiments, see Figure 2 The drive assembly 100 also includes an oil pump 50 and an oil cooler 60. The oil pump 50 is connected between the filter 40 and the oil cooler 60 and communicates with both. The oil cooler 60 is communicated with the first housing 1 and the second housing 2.

[0055] In this way, under the action of oil pump 50, oil can enter filter 40 from the oil inlet of filter 40, and then enter oil pump 50 and oil cooler 60 in sequence. Oil cooler 60 can cool the oil so that the oil can better cool and lubricate motor 20 and reducer 30. Then the oil can enter first housing 1 and second housing 2 to cool and lubricate motor 20 and reducer 30. Finally, the oil can flow from first housing 1 and second housing 2 into first oil pan 3 to realize the circulation of oil.

[0056] In some other embodiments, the drive assembly 100 may also exclude the oil cooler 60. It is understood that this also allows for the circulation of oil within the drive assembly 100.

[0057] In some embodiments, the ratio of oil flowing from the oil cooler 60 to the first housing 1 to oil flowing from the oil cooler 60 to the second housing 2 is 2:1. This oil distribution ratio is consistent with the cooling and lubrication requirements of the motor 20 and the reducer 30, ensuring the effective cooling and lubrication of the motor 20 and the reducer 30 by the oil.

[0058] In some other embodiments, the ratio of oil flowing from the oil cooler 60 to the first housing 1 to the oil flowing from the oil cooler 60 to the second housing 2 can be 3:2, 5:3, or 7:5, etc. This also allows for the cooling and lubrication of the motor 20 and the reducer 30 through the oil.

[0059] In some embodiments, see Figure 2 The bottom wall of the first oil pan 3 is provided with an oil return groove 31, which is recessed from the side surface of the bottom wall of the first oil pan 3 that is close to the filter 40 and away from the filter 40.

[0060] In the vertical direction, the projection of the oil suction port of the filter 40 on the bottom wall of the first oil pan 3 is located within the projection of the return oil groove 31 on the bottom wall of the first oil pan 3.

[0061] By providing an oil return groove 31 on the bottom wall of the first oil pan 3, the oil flowing into the first oil pan 3 from the first housing 1 and the second housing 2 can easily accumulate in the oil return groove 31. Furthermore, in the vertical direction, the projection of the oil inlet of the filter 40 on the bottom wall of the first oil pan 3 is located within the projection of the oil return groove 31 on the bottom wall of the first oil pan 3, meaning the oil inlet of the filter 40 faces the oil return groove 31. Thus, when the filter 40 draws oil from the first oil pan 3, the oil easily accumulates in the oil return groove 31, facilitating the filter 40's intake of oil. This effectively prevents the filter 40 from drawing in cavitation, ensuring the lubrication and cooling effect of the oil on the motor 20 and the reducer 30.

[0062] The term "air intake by filter 40" refers to the situation where, when filter 40 is drawing in oil, the oil fails to completely submerge the oil intake port of filter 40, resulting in air being drawn in at the same time as the oil.

[0063] In some embodiments, see Figures 2 to 5 The housing assembly 10 includes a first oil pan 3, a second oil pan 4, a diversion structure 5, and a first housing 1 and a second housing 2 connected to each other. The bottom of the first housing 1 is provided with a first oil return port 11 and a second oil return port 12, and the bottom of the second housing 2 is provided with a third oil return port 21.

[0064] The first oil pan 3 is connected to the bottom of the first housing 1 and forms the first oil storage cavity C1. The first oil storage cavity C1 is connected to the first oil return port 11 and the second oil return port 12. The second oil pan 4 is connected to the bottom of the second housing 2 and forms the second oil storage cavity C2. The second oil storage cavity C2 is connected to the third oil return port 21.

[0065] The first oil pan 3 is used to house the filter 40. The first oil return port 11 and the second oil return port 12 are adapted to be located on both sides of the filter 40 in a first direction F1. The first direction F1 is perpendicular to the arrangement direction of the first housing 1 and the first oil pan 3. For example, the arrangement direction of the first housing 1 and the first oil pan 3 is consistent with the vertical direction.

[0066] The second oil pan 4 is connected to the first oil pan 3. The diversion structure 5 is provided on the first oil pan 3 to divert the oil flowing from the second oil pan 4 to the first oil pan 3 to the filter 40 on both sides of the second direction F2. The second direction F2 is perpendicular to the first direction F1 and perpendicular to the arrangement direction of the first housing 1 and the first oil pan 3.

[0067] The housing assembly 10 provided in this application includes a first housing 1 adapted to house an electric motor 20, a second housing 2 adapted to house a reducer 30, and a first oil pan 3 connected to the bottom of the first housing 1 and used to house a filter 40. This arrangement of the housing assembly 10 allows for a more compact drive assembly 100, thereby increasing the power density of the drive assembly 100.

[0068] Power density refers to the ratio of the maximum continuous power or maximum peak power of the drive assembly 100 to its volume.

[0069] By providing a first oil return port 11 and a second oil return port 12 at the bottom of the first housing 1, both of which are connected to the first oil storage cavity C1 formed by the first oil pan 3, oil can flow from the first housing 1 into the first oil pan 3 through the first oil return port 11 and the second oil return port 12. Since the first oil return port 11 and the second oil return port 12 are suitable to be located on both sides of the filter 40 in the first direction F1, oil can flow from both sides of the filter 40 in the first direction F1 to the filter 40. Thus, when the filter 40 draws in oil, oil enters the oil inlet of the filter 40 from both sides of the filter 40 in the first direction F1, which facilitates a relatively uniform flow of oil from both sides of the filter 40 in the first direction F1, reducing the risk of the filter 40 being emptied due to uneven oil flow on both sides of the filter 40 in the first direction F1.

[0070] Furthermore, by providing a third oil return port 21 at the bottom of the second housing 2, the second oil pan 4 is connected to the bottom of the second housing 2. The second oil storage chamber C2 enclosed by the second oil pan 4 is connected to the third oil return port 21. In this way, oil can flow from the second housing 2 into the second oil pan 4 through the third oil return port 21. Since the second oil pan 4 is connected to the first oil pan 3, oil can continue to flow from the second oil pan 4 into the first oil pan 3, thus facilitating the absorption and filtration of the oil returning from the second housing 2 by the filter 40.

[0071] By setting the diversion structure 5 on the first oil pan 3, the oil in the second oil pan 4 is diverted to both sides of the filter 40 in the second direction F2. In this way, the oil can flow from both sides of the filter 40 in the second direction F2 to the filter 40. Combined with the above-mentioned arrangement of the first oil return port 11 and the second oil return port 12, the oil can flow to the filter 40 more evenly from all sides, thus preventing the filter 40 from sucking in air.

[0072] In some embodiments, see Figures 2 to 5The drive assembly 100 also includes a first diversion pipe structure 6 and a second diversion pipe structure 7. Both the first diversion pipe structure 6 and the second diversion pipe structure 7 are located within the first housing 1 and are connected to the oil cooler 60. The oil in the first diversion pipe structure 6 is used to cool a portion of the motor 20, and the oil in the second diversion pipe structure 7 is used to cool the remaining portion of the motor 20. The oil outlet of the first diversion pipe structure 6 is closer to the first return port 11 than the oil outlet of the second diversion pipe structure 7, and the oil outlet of the second diversion pipe structure 7 is closer to the second return port 12 than the oil outlet of the first diversion pipe structure 6.

[0073] In this way, the oil entering the first housing 1 from the oil cooler 60 can cool the entire motor 20 evenly, and the oil can also flow into the first oil pan 3 relatively evenly through the first oil return port 11 and the second oil return port 12, and then flow from both sides of the filter 40 in the first direction F1 to the filter 40, thus preventing the filter 40 from sucking in air.

[0074] In some embodiments, see Figures 2 to 5 The flow divider structure 5 is adapted to cooperate with the filter 40 to divide the first oil storage chamber C1 enclosed by the first oil pan 3 into a first chamber V1, a second chamber V2, a third chamber V3 and a fourth chamber V4. The first chamber V1 and the second chamber V2 are located on both sides of the filter 40 in the first direction F1, and the third chamber V3 and the fourth chamber V4 are located on both sides of the filter 40 in the second direction F2.

[0075] The first oil return port 11 is connected to the first chamber V1, the second oil return port 12 is connected to the second chamber V2, and the third chamber V3 and the fourth chamber V4 are both connected to the second oil storage chamber C2. For example, the first chamber V1, the second chamber V2, the third chamber V3 and the fourth chamber V4 are all connected to the oil suction port of the filter 40.

[0076] In this way, oil can flow from the first return port 11 into the first chamber V1, from the second return port 12 into the second chamber V2, and further into the filter 40 from both sides in the first direction F1. Simultaneously, oil can flow from the second oil pan 4 into the third chamber V3 and the fourth chamber V4, and further into the filter 40 from both sides in the second direction F2. This allows the oil to flow relatively evenly around the filter 40, preventing cavitation. The internal space of the first oil pan 3 is divided into the first chamber V1 to the fourth chamber V4 by the flow divider structure 5 in conjunction with the filter 40. This simple structure helps simplify the design of the flow divider structure 5 and reduce the manufacturing cost of the housing assembly 10.

[0077] In some other embodiments, the flow-diverting structure 5 includes a first flow-diverting pipe and a second flow-diverting pipe. One end of the first flow-diverting pipe is connected to the second oil pan 4, and the other end faces the filter 40 along the second direction F2. One end of the second flow-diverting pipe is connected to the second oil pan 4, and the other end faces the filter 40 along the other side of the second direction F2. It is understood that this arrangement of the flow-diverting structure 5 also allows the oil in the second oil pan 4 to flow into the filter 40 relatively evenly from both sides of the filter 40 in the second direction F2.

[0078] In some embodiments, see Figures 2 to 5 The first oil pan 3 includes a first wall plate 36 and a second wall plate 37 disposed opposite to each other along the first direction F1, and a third wall plate 38 and a fourth wall plate 39 disposed opposite to each other along the second direction F2.

[0079] The diversion structure 5 includes a first partition structure 51 and a second partition structure 52. The first partition structure 51 is disposed between the filter 40 and the first wall panel 36, and together with the filter 40 and / or the first wall panel 36, it forms a first chamber V1. The second partition structure 52 is disposed between the filter 40 and the second wall panel 37, and together with the filter 40 and / or the second wall panel 37, it forms a second chamber V2.

[0080] The first partition structure 51, the second partition structure 52 and the third wall panel 38 form a third chamber V3, and the first partition structure 51, the second partition structure 52 and the fourth wall panel 39 form a fourth chamber V4.

[0081] By providing a first partition structure 51 and a second partition structure 52 in the first oil pan 3, and cooperating with the filter 40 and the first wall plate 36 to the fourth wall plate 39, the first chamber V1 to the fourth chamber V4 are separated in the first oil pan 3. This allows for full utilization of the internal space of the first oil pan 3. Furthermore, by cooperating with the filter 40 and the first wall plate 36 to the fourth wall plate 39, the first chamber V1 to the fourth chamber V4 are separated in the first oil pan 3. This design helps to reduce the material used in the diversion structure 5, thereby reducing the manufacturing cost of the housing assembly 10.

[0082] In some other embodiments, the flow divider structure 5 may include a third partition structure, a fourth partition structure, a fifth partition structure, and a sixth partition structure. The third partition structure is located on one side of the filter 40 in the first direction F1 and forms a first chamber V1; the fourth partition structure is located on the other side of the filter 40 in the first direction F1 and forms a second chamber V2; the fifth partition structure is located on one side of the filter 40 in the second direction F2 and forms a third chamber V3; and the sixth partition structure is located on the other side of the filter 40 in the second direction F2 and forms a fourth chamber V4. It is understood that this also allows for the separation of the first chamber V1 to the fourth chamber V4 within the first oil pan 3.

[0083] In some embodiments, see Figures 2 to 5 The second wall panel 37 is located between the first wall panel 36 and the second oil pan 4. The second partition structure 52 includes a first sub-plate 521 and a second sub-plate 522 spaced apart along the second direction F2. The first sub-plate 521, the second sub-plate 522, the filter 40 and the second wall panel 37 form a second chamber V2.

[0084] The first sub-plate 521, the first partition structure 51, the filter 40 and the third wall plate 38 form the third chamber V3, and the second sub-plate 522, the first partition structure 51, the filter 40 and the fourth wall plate 39 form the fourth chamber V4.

[0085] The first sub-plate 521, the second sub-plate 522, the first partition structure 51, the filter 40, and the second wall panel 37 to the fourth wall panel 39 are used to form the second chamber V2 to the fourth chamber V4. The second partition structure 52 is designed to be composed of the first sub-plate 521 and the second sub-plate 522. The structure is relatively simple, easy to manufacture and install, and can reduce the manufacturing cost of the housing assembly 10.

[0086] In some examples, the first partition structure 51 may include a third sub-plate and a fourth sub-plate spaced apart along the second direction F2, the third sub-plate, the fourth sub-plate, the filter 40 and the first wall panel 36 forming a first chamber V1.

[0087] In other embodiments, the second partition structure 52 may be an arc-shaped plate, which, together with the filter 40, forms a second chamber V2. A portion of the arc-shaped plate, the first partition structure 51, and the filter 40 form a third chamber V3, and the remaining portion of the arc-shaped plate, the first partition structure 51, and the filter 40 form a fourth chamber V4. It is understood that the arc-shaped plate is relatively simple to manufacture and requires less material, thus reducing the manufacturing cost of the housing assembly 10.

[0088] In some other embodiments, the second partition structure 52 may be an arc-shaped plate, which, together with the second wall plate 37, forms a second chamber V2. A portion of the arc-shaped plate, the first partition structure 51, the filter 40, and the third wall plate 38 form a third chamber V3. The remaining portion of the arc-shaped plate, the first partition structure 51, the filter 40, and the fourth wall plate 39 form a fourth chamber V4. It is understood that the arc-shaped plate is relatively simple to manufacture and requires less material, thus reducing the manufacturing cost of the housing assembly 10.

[0089] In some examples, the first partition structure 51 may also be an arc-shaped plate. Specifically, the arc-shaped plate cooperates with the second partition structure 52, the first wall panel 36, the third wall panel 38, and the fourth wall panel 39 to form the first chamber V1, the third chamber V3, and the fourth chamber V4. For details, please refer to the above description of the second partition structure 52, which will not be repeated here.

[0090] In some embodiments, see Figures 2 to 5 The housing assembly 10 also includes a first pipe 8 and a second pipe 9. The first pipe 8 connects to the third chamber V3 and the second oil storage chamber C2, and the second pipe 9 connects to the fourth chamber V4 and the second oil storage chamber C2.

[0091] This allows for communication between the second oil storage chamber C2 and the third chamber V3, as well as between the second oil storage chamber C2 and the fourth chamber V4. Since pipes are common items used for communication functions and are easy to manufacture, this helps reduce the manufacturing cost of the housing assembly 10.

[0092] In some examples, the first oil pan 3 and the second oil pan 4 are spaced apart. For example, the arrangement direction of the first oil pan 3 and the second oil pan 4 is consistent with the width direction of the vehicle 01.

[0093] In some other embodiments, the first oil pan 3 and the second oil pan 4 may be integral. A communication hole can be formed in the second wall plate 37 to achieve communication between the second oil pan 4 and the third chamber V3, and between the second oil pan 4 and the fourth chamber V4. It is understood that this also allows for communication between the second oil pan 4 and the third chamber V3, and between the second oil pan 4 and the fourth chamber V4.

[0094] In some embodiments, the angle between the arrangement directions of the opposite ends of the first pipe 8 and the horizontal plane is greater than 0° and less than or equal to 15°. For example, 1°, 3°, 5°, 9°, 11°, 13°, or 15°, etc.

[0095] By setting the angle between the arrangement directions of the two opposite ends of the first pipe 8 and the horizontal plane to be greater than 0° and less than or equal to 15°, the design of the first pipe 8 can ensure that the oil can still flow smoothly from the second oil pan 4 into the first oil pan 3 when the vehicle 01 is driving on a bumpy road and tilts to the left or right relative to the direction of travel of the vehicle 01, which facilitates oil accumulation and avoids cavitation.

[0096] In some embodiments, the angle between the arrangement directions of the opposite ends of the second pipe 9 and the horizontal plane is greater than 0° and less than or equal to 15°. For example, 1°, 3°, 5°, 9°, 11°, 13°, or 15°, etc.

[0097] By setting the angle between the relative directions of the two ends of the second pipe 9 and the horizontal plane to be greater than 0° and less than or equal to 15°, the design of the second pipe 9 can ensure that the oil can still flow smoothly from the second oil pan 4 into the first oil pan 3 when the vehicle 01 is driving on a bumpy road and tilts to the left or right relative to the direction of travel of the vehicle 01, which facilitates oil accumulation and avoids cavitation.

[0098] In some embodiments, along the direction from the first wall panel 36 to the second wall panel 37, the first sub-panel 521 and the second sub-panel 522 gradually move closer to each other.

[0099] For example, one end of the first pipe 8 is connected to the second oil pan 4, and the other end of the first pipe 8 is connected to the second wall panel 37 and communicates with the third chamber V3. One end of the second pipe 9 is connected to the second oil pan 4, and the other end of the second pipe 9 is connected to the second wall panel 37 and communicates with the fourth chamber V4.

[0100] By setting the direction from the first wall panel 36 to the second wall panel 37, the first sub-plate 521 and the second sub-plate 522 gradually approach each other, which makes it easier to leave a connection space on the second wall panel 37 so as to facilitate the connection of the second oil pan 4 to the third chamber V3 through the first pipe 8 and the second oil pan 4 to the fourth chamber V4 through the second pipe 9.

[0101] In some other embodiments, the first sub-plate 521 and the second sub-plate 522 can be arranged in parallel along the direction from the first wall plate 36 to the second wall plate 37. This also allows for a connection space on the second wall plate 37, so that the second oil pan 4 can be connected to the third chamber V3 via the first pipe 8, and to the fourth chamber V4 via the second pipe 9.

[0102] In some embodiments, see Figures 2 to 5The housing assembly 10 also includes a flow guiding structure 101, which is disposed on the second oil pan 4 and located on the side of the third oil return port 21 near the first oil pan 3. The flow guiding structure 101 is located between the first pipe 8 and the second pipe 9 and is used to guide the oil in the second oil pan 4 to the first pipe 8 and the second pipe 9.

[0103] In this way, when the oil flows from the second housing 2 to the second oil pan 4, and then from the second oil pan 4 into the first oil pan 3 through the first pipe 8 and the second pipe 9, the oil can be diverted, so that the amount of oil flowing into the third chamber V3 through the first pipe 8 is more balanced with the amount of oil flowing into the fourth chamber V4 through the second pipe 9. This allows the oil to flow more evenly from both sides of the filter 40 in the second direction F2, thus preventing cavitation.

[0104] In some embodiments, see Figures 2 to 5 The flow guiding structure 101 includes a first flow guide plate 1011 and a second flow guide plate 1012 arranged along the second direction F2. The end of the first flow guide plate 1011 near the third oil return port 21 is connected to the end of the second flow guide plate 1012 near the third oil return port 21, and along the direction from the second oil pan 4 to the first oil pan 3, the first flow guide plate 1011 and the second flow guide plate 1012 gradually move away from each other.

[0105] In this way, the first guide plate 1011 and the second guide plate 1012 cooperate to divide the internal space of the second oil pan 4 into a fifth cavity and a sixth cavity. The fifth cavity corresponds to the first pipe 8, and the sixth cavity corresponds to the second pipe 9. Thus, when oil flows from the second housing 2 to the second oil pan 4, some oil can be guided to the fifth cavity and flow into the first pipe 8 through the fifth cavity. The first guide plate 1011 can guide the oil flow into the first pipe 8 to make the oil flow smoother. The remaining oil can be guided to the sixth cavity and flow into the second pipe 9 through the sixth cavity. The second guide plate 1012 can also guide the oil flow into the second pipe 9 to make the oil flow smoother.

[0106] In some other embodiments, the flow guiding structure 101 may include a third flow guiding plate, the thickness direction of which is consistent with the second direction F2, and the end of the third flow guiding plate near the first oil pan 3 is connected to the second oil pan 4. In this way, the oil in the second oil pan 4 can also be guided through the third flow guiding plate.

[0107] In some embodiments, see Figures 2 to 5 The second housing 2 also includes a fourth oil return port 22 and a fifth oil return port 23. Along the second direction F2, the fourth oil return port 22 is located on one side of the third oil return port 21, and the fifth oil return port 23 is located on the other side of the third oil return port 21.

[0108] By opening a fourth oil return port 22 and a fifth oil return port 23 on the second housing 2, the flow rate of oil from the second housing 2 into the second oil pan 4 can be increased. This prevents excessive oil accumulation in the second housing 2, which would otherwise immerse the reducer 30 in oil and reduce its transmission efficiency. Furthermore, by placing the fourth oil return port 22 on one side of the third oil return port 21 and the fifth oil return port 23 on the other side of the third oil return port 21 along the second direction F2, the amount of oil flowing into the first pipe 8 and the second pipe 9 can be kept relatively balanced.

[0109] In some embodiments, the height of the bottom wall of the second oil pan 4 is higher than the height of the bottom wall of the first oil pan 3, and the first pipe 8 and the second pipe 9 both extend obliquely away from the second housing 2 in the direction from the second oil pan 4 to the first oil pan 3.

[0110] By setting the bottom wall height of the second oil pan 4 to be higher than that of the first oil pan 3, the oil in the second pan 2 will flow into the first oil pan 3 through the first pipe 8 and the second pipe 9 under the influence of gravity, facilitating oil accumulation and making it easier for the filter 40 to draw in the oil. Furthermore, by setting both the first pipe 8 and the second pipe 9 to extend at an angle away from the second pan 2, it is easier for the oil to flow into the first oil pan 3 along the first pipe 8 and the second pipe 9.

[0111] In some other embodiments, the height of the bottom wall of the second oil pan 4 can be equal to the height of the bottom wall of the first oil pan 3. Thus, as the filter 40 continuously draws in oil from the first oil pan 3, the oil level in the first oil pan 3 gradually decreases. When the oil level in the first oil pan 3 is lower than the oil level in the second oil pan 4, the oil in the second oil pan 4 flows into the first oil pan 3 through the first pipe 8 and the second pipe 9. This also allows the oil in the second oil pan 4 to accumulate in the first oil pan 3.

[0112] In some embodiments, the first pipe 8 and the second pipe 9 are both connected to the end of the second oil pan 4 near the first oil pan 3, and extend in the direction from the second oil pan 4 to the first oil pan 3. The bottom wall of the second oil pan 4 extends at an angle away from the second housing 2.

[0113] In this way, the bottom wall of the second oil pan 4 can guide the oil in the second oil pan 4 to flow to the first pipe 8 and the second pipe 9, so as to increase the flow speed of the oil and facilitate the rapid accumulation of oil in the first oil pan 3, ensuring that there is enough oil at the oil inlet of the filter 40 and preventing air suction.

[0114] In some other embodiments, the bottom wall of the second oil pan 4 may extend horizontally. This allows the oil in the second oil pan 4 to also enter the first oil pan 3 through the first pipe 8 and the second pipe 9.

[0115] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this application still fall within the scope of this application.

Claims

1. A housing assembly, characterized in that, It includes a first oil pan (3), a second oil pan (4), a diversion structure (5), and a first housing (1) and a second housing (2) connected to each other. The bottom of the first housing (1) is provided with a first oil return port (11) and a second oil return port (12), and the bottom of the second housing (2) is provided with a third oil return port (21). The first oil pan (3) is connected to the bottom of the first housing (1) and forms a first oil storage cavity (C1). The first oil storage cavity (C1) is connected to both the first oil return port (11) and the second oil return port (12). The second oil pan (4) is connected to the bottom of the second housing (2) and forms a second oil storage cavity (C2). The second oil storage cavity (C2) is connected to the third oil return port (21). The first oil pan (3) is used to house the filter (40), and the first oil return port (11) and the second oil return port (12) are adapted to be located on both sides of the filter (40) in a first direction (F1), which is perpendicular to the arrangement direction of the first housing (1) and the first oil pan (3). The second oil pan (4) is connected to the first oil pan (3). The diversion structure (5) is located on the first oil pan (3) and is used to divert the oil in the second oil pan (4) to both sides of the filter (40) in the second direction (F2). The second direction (F2) is perpendicular to the first direction (F1) and perpendicular to the arrangement direction of the first housing (1) and the first oil pan (3).

2. The housing assembly according to claim 1, characterized in that, The diversion structure (5) is adapted to cooperate with the filter (40) to divide the first oil storage chamber (C1) enclosed by the first oil pan (3) into a first chamber (V1), a second chamber (V2), a third chamber (V3) and a fourth chamber (V4). The first chamber (V1) and the second chamber (V2) are respectively located on both sides of the filter (40) in the first direction (F1), and the third chamber (V3) and the fourth chamber (V4) are respectively located on both sides of the filter (40) in the second direction (F2). The first oil return port (11) is connected to the first chamber (V1), the second oil return port (12) is connected to the second chamber (V2), and the third chamber (V3) and the fourth chamber (V4) are both connected to the second oil storage chamber (C2).

3. The housing assembly according to claim 2, characterized in that, The first oil pan (3) includes a first wall plate (36) and a second wall plate (37) arranged opposite to each other along the first direction (F1), and a third wall plate (38) and a fourth wall plate (39) arranged opposite to each other along the second direction (F2). The diversion structure (5) includes a first partition structure (51) and a second partition structure (52). The first partition structure (51) is disposed between the filter (40) and the first wall panel (36), and together with the filter (40) and / or the first wall panel (36), it forms the first chamber (V1). The second partition structure (52) is disposed between the filter (40) and the second wall panel (37), and together with the filter (40) and / or the second wall panel (37), it forms the second chamber (V2). The first partition structure (51), the second partition structure (52) and the third wall panel (38) form the third chamber (V3), and the first partition structure (51), the second partition structure (52) and the fourth wall panel (39) form the fourth chamber (V4).

4. The housing assembly according to claim 3, characterized in that, The second wall panel (37) is located between the first wall panel (36) and the second oil pan (4); The second partition structure (52) includes a first sub-plate (521) and a second sub-plate (522) spaced apart along the second direction (F2), the first sub-plate (521), the second sub-plate (522), the filter (40) and the second wall panel (37) forming the second chamber (V2); The first sub-plate (521), the first partition structure (51), the filter (40) and the third wall panel (38) form the third chamber (V3), and the second sub-plate (522), the first partition structure (51), the filter (40) and the fourth wall panel (39) form the fourth chamber (V4).

5. The housing assembly according to claim 4, characterized in that, Along the direction from the first wall panel (36) to the second wall panel (37), the first sub-panel (521) and the second sub-panel (522) gradually approach each other.

6. The housing assembly according to any one of claims 2-5, characterized in that, It also includes a first pipe (8) and a second pipe (9), the first pipe (8) connecting the third chamber (V3) and the second oil storage chamber (C2), and the second pipe (9) connecting the fourth chamber (V4) and the second oil storage chamber (C2).

7. The housing assembly according to claim 4 or 5, characterized in that, It also includes a first pipe (8) and a second pipe (9), both of which are connected to the second wall panel (37). The first pipe (8) connects the third chamber (V3) and the second oil pan (4), and the second pipe (9) connects the fourth chamber (V4) and the second oil pan (4).

8. The housing assembly according to claim 6, characterized in that, It also includes a flow guiding structure (101), which is disposed on the second oil pan (4) and located on the side of the third oil return port (21) close to the first oil pan (3). The flow guiding structure (101) is located between the first pipe (8) and the second pipe (9) and is used to guide the oil in the second oil pan (4) to the first pipe (8) and the second pipe (9).

9. The housing assembly according to claim 8, characterized in that, The flow guiding structure (101) includes a first flow guide plate (1011) and a second flow guide plate (1012) arranged along the second direction (F2). The end of the first flow guide plate (1011) near the third oil return port (21) is connected to the end of the second flow guide plate (1012) near the third oil return port (21), and the flow guide plate (1011) and the second flow guide plate (1012) gradually move away from each other along the direction from the second oil pan (4) to the first oil pan (3).

10. The housing assembly according to claim 8, characterized in that, The second housing (2) further includes a fourth oil return port (22) and a fifth oil return port (23). Along the second direction (F2), the fourth oil return port (22) is located on one side of the third oil return port (21), and the fifth oil return port (23) is located on the other side of the third oil return port (21).

11. The housing assembly according to claim 6, characterized in that, The bottom wall of the second oil pan (4) is higher than the bottom wall of the first oil pan (3), and the first pipe (8) and the second pipe (9) extend at an angle away from the second housing (2) in the direction from the second oil pan (4) to the first oil pan (3).

12. The housing assembly according to claim 6, characterized in that, The first pipe (8) and the second pipe (9) are both connected to the end of the second oil pan (4) near the first oil pan (3), and extend along the direction of the second oil pan (4) towards the first oil pan (3). The bottom wall of the second oil pan (4) extends at an angle away from the second housing (2).

13. A drive assembly, characterized in that, The device includes a housing assembly (10), a motor (20), a reducer (30), and a filter (40) as described in any one of claims 1-12, wherein the motor (20) is disposed in the first housing (1), the reducer (30) is disposed in the second housing (2), and the motor (20) is connected to the reducer (30) in a driving connection, and the filter (40) is disposed in the first oil pan (3).

14. The drive assembly according to claim 13, characterized in that, The bottom wall of the first oil pan (3) is provided with an oil return groove (31), which is recessed from the side surface of the bottom wall of the first oil pan (3) near the filter (40) away from the filter (40); In the vertical direction, the projection of the oil inlet of the filter (40) on the bottom wall of the first oil pan (3) is located within the projection of the return oil groove (31) on the bottom wall of the first oil pan (3).

15. A vehicle, characterized in that, Includes the drive assembly (100) as described in claim 13 or 14.

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