Electric drive assembly and vehicle

Abstract

Disclosed is a vehicle, comprising an electric drive assembly. The electric drive assembly comprises a housing, a cooling assembly, an oil pump assembly, and a suction filter assembly. An oil chamber is formed at the bottom of the housing. The cooling assembly is arranged inside the housing. The oil pump assembly is arranged inside the housing, and the oil pump assembly is in communication with both the oil chamber and the cooling assembly to pump a cooling oil in the oil chamber into the cooling assembly. The suction filter assembly is arranged inside the oil chamber, and is provided with an oil suction port and an oil discharge port. The oil discharge port is in communication with the oil pump assembly, and when a vehicle rolls, the oil suction port remains below the liquid level of the cooling oil in the oil chamber.

Description

Electric drive assembly and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on September 21, 2023, with application number 202322568315.3 and title “Electric Drive Assembly and Vehicle,” the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of vehicle technology, and in particular to an electric drive assembly and a vehicle. Background Art

[0004] In related technologies, electric drive assemblies generally use oil cooling or water cooling to cool the motor. For oil-cooled electric drive assemblies, the oil pump assembly is an important component. The oil pump assembly transports cooling oil into the housing to cool the motor, while also cooling and lubricating the gears, differentials, bearings, etc.

[0005] However, since the oil pump assembly is generally arranged on one side of the housing, and the vehicle traveling under complex working conditions is easily affected by factors such as road slope and roll, the entire electric drive assembly faces a greater risk of tilting, which can easily cause the oil level at the oil suction port at the bottom of the housing to drop rapidly, causing air suction, and further leading to problems such as lack of lubrication of gears and bearings, insufficient cooling of the motor, and overheating, ultimately resulting in no power output from the electric drive assembly.

[0006] Public content

[0007] This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes an electric drive assembly that can prevent the oil pump assembly from being emptied, while allowing the oil suction port to still draw cooling oil into the suction filter assembly to normally cool the transmission and motor.

[0008] The present application further proposes a vehicle.

[0009] According to the electric drive assembly of the present application, it includes: a shell, an oil chamber is formed at the bottom of the shell; a cooling assembly, the cooling assembly is arranged in the shell; an oil pump assembly, the oil pump assembly is arranged in the shell, the oil pump assembly is communicated with the oil chamber and the cooling assembly respectively, so as to pump the cooling oil in the oil chamber into the cooling assembly; and a filter assembly, the filter assembly is arranged in the oil chamber, the filter assembly is provided with an oil suction port and an oil discharge port, the oil discharge port is communicated with the oil pump assembly, and when the vehicle rolls, the oil suction port is located below the liquid level of the cooling oil in the oil chamber.

[0010] According to the electric drive assembly of the present application, the oil chamber is arranged at the bottom of the shell, so that the cooling oil can better flow back into the oil chamber, reducing the cooling oil flowing to other locations, and the suction filter component is arranged in the oil chamber, so that the cooling oil in the oil chamber can be better pumped out, and when the vehicle rolls, the oil suction port is located below the liquid level of the cooling oil in the oil chamber, which can prevent the oil pump component from being sucked empty. The oil suction port can still suck the cooling oil into the suction filter component to cool the transmission and motor normally.

[0011] In some examples of the present application, when the vehicle tilts forward, the liquid level of the cooling oil has a first negotiation position with the bottom of the shell, and when the vehicle tilts backward, the liquid level of the cooling oil has a second negotiation position with the bottom of the shell, and the oil suction port is located between the first negotiation position and the second negotiation position.

[0012] In some examples of the present application, a cross section of the oil suction port is configured as an arc-shaped structure.

[0013] In some examples of the present application, the electric drive assembly also includes: a transmission, which is located at the upper left of the oil chamber; and a motor, which is located at the upper right of the oil chamber, and the transmission and the motor are respectively connected to the oil outlet of the cooling component.

[0014] In some examples of the present application, the shell is provided with an oil return portion, which is located below the motor. The oil return portion is inclined toward the oil chamber, and the angle when the vehicle tilts to the right is α. The angle between the oil return portion and the horizontal plane is β, and the relationship between α and β is: β≥α.

[0015] In some examples of the present application, the electric drive assembly further includes: a motor end cover, which is arranged at an end of the motor away from the transmission, and the motor end cover protrudes toward the interior of the housing.

[0016] In some examples of the present application, the oil pump assembly is located obliquely below the output shaft of the motor.

[0017] In some examples of the present application, the transmission is provided with a first housing, the motor is provided with a second housing, the first housing is connected to the second housing, the second housing is provided with a suction chamber, the suction assembly is provided in the suction chamber, an oil pump pipe is provided between the suction assembly and the oil pump assembly, the oil pump pipe is provided in the first housing, and the oil discharge port is provided opposite to the inlet of the oil pump pipe.

[0018] In some examples of the present application, the electric drive assembly further includes: a seal, which is disposed between the first housing and the second housing.

[0019] The vehicle according to the present application includes: the electric drive assembly described above.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] FIG1 is a connection diagram of an electric drive assembly according to an embodiment of the present application;

[0023] FIG2 is a schematic diagram of a partial structure of an electric drive assembly at a first angle according to an embodiment of the present application;

[0024] FIG3 is a schematic diagram of a partial structure of an electric drive assembly according to an embodiment of the present application at a second angle;

[0025] FIG4 is a cross-sectional view of an electric drive assembly at a first angle according to an embodiment of the present application;

[0026] FIG5 is a schematic diagram of the electric drive assembly when the vehicle is tilted backward;

[0027] FIG6 is a schematic diagram of the electric drive assembly when the vehicle is tilted forward;

[0028] FIG7 is a cross-sectional view of the electric drive assembly according to an embodiment of the present application at a second angle;

[0029] FIG8 is a schematic diagram of the electric drive assembly when the vehicle leans to the right;

[0030] FIG9 is a schematic diagram of the electric drive assembly when the vehicle leans left;

[0031] FIG10 is a partial cross-sectional view of an electric drive assembly according to an embodiment of the present application;

[0032] FIG11 is a schematic block diagram of a vehicle according to an embodiment of the present application.

[0033] Figure numerals: vehicle 2, electric drive assembly 1, housing 10, oil chamber 11, cooling assembly 20, oil pump assembly 30, oil pump pipe 31, suction filter assembly 40, oil suction port 41, oil discharge port 42, first negotiation position 50, second negotiation position 60, transmission 70, first housing 71, motor 80, oil return part 81, output shaft 83, second housing 84, suction filter chamber 85, motor end cover 90, seal 100. DETAILED DESCRIPTION

[0034] The following describes in detail embodiments of the present application, and the embodiments described with reference to the accompanying drawings are exemplary.

[0035] The electric drive assembly 1 according to an embodiment of the present application is described below with reference to FIG. 1 to FIG. 10 .

[0036] As shown in Figures 1-3, the electric drive assembly 1 according to an embodiment of the present application includes a housing 10, a cooling assembly 20, an oil pump assembly 30, and a filter assembly 40. Housing 10 is the overall outer shell of the electric drive assembly 1, serving as both a mounting and protective mechanism. Cooling assembly 20 primarily cools the cooling oil. Oil pump assembly 30 pumps oil. Filter assembly 40 filters the oil.

[0037] As shown in Figure 1, the cooling assembly 20, the oil pump assembly 30 and the filter assembly 40 are all arranged in the shell 10, so that the cooling assembly 20, the oil pump assembly 30 and the filter assembly 40 can be fixed, making the setting of the cooling assembly 20, the oil pump assembly 30 and the filter assembly 40 more secure, so that the cooling assembly 20, the oil pump assembly 30 and the filter assembly 40 can work more stably. In addition, the shell 10 can also isolate the cooling assembly 20, the oil pump assembly 30 and the filter assembly 40 from the external environment to prevent the external environment from affecting the operation of the cooling assembly 20, the oil pump assembly 30 and the filter assembly 40.

[0038] As shown in FIG1 , an oil chamber 11 is formed at the bottom of the housing 10. The oil chamber 11 is mainly used to store cooling oil. The oil pump assembly 30 is respectively connected to the oil chamber 11 and the cooling assembly 20 to pump the cooling oil in the oil chamber 11 into the cooling assembly 20. That is, when the electric drive assembly 1 needs cooling, the oil pump assembly 30 is controlled to operate, the oil pump assembly 30 pumps out the cooling oil in the oil chamber 11, and then pumps the cooling oil into the cooling assembly 20. The cooling assembly 20 cools the cooling oil to reduce the temperature of the cooling oil. Finally, the cooling oil is passed to the transmission 70 and the motor 80 to cool the transmission 70 and the motor 80 so that the transmission 70 and the motor 80 can work better.

[0039] As shown in Figures 1, 4-10, the filter assembly 40 is disposed within the oil chamber 11. The filter assembly 40 is provided with an oil suction port 41 and an oil discharge port 42. The oil discharge port 42 is connected to the oil pump assembly 30, and the oil suction port 41 is located below the liquid level of the cooling oil within the oil chamber 11. When the filter assembly 40 is disposed within the oil chamber 11, when the vehicle is not rolling, the oil chamber 11 is filled with cooling oil, and the filter assembly 40 is located within the cooling oil. When the oil pump assembly 30 pumps oil through the filter assembly 40, the oil suction port 41 can draw in the cooling oil, and the oil discharge port 42 can discharge the filtered cooling oil back to the oil pump assembly 30.

[0040] When the vehicle rolls, it is understandable that the cooling oil in the oil chamber 11 will also roll accordingly after the vehicle rolls. At this time, it is necessary to ensure that the oil suction port 41 is always located below the liquid level of the cooling oil in the oil chamber 11. When the oil suction port 41 is located below the liquid level of the cooling oil in the oil chamber 11, when the electric drive assembly 1 is working, the oil suction port 41 can still suck the cooling oil into the suction filter component 40, that is, the oil pump component 30 can pump the cooling oil into the cooling component 20, so that the transmission 70 and the motor 80 can be cooled normally.

[0041] Therefore, the oil chamber 11 is set at the bottom of the shell 10, so that the cooling oil can flow back to the oil chamber 11 better, reducing the cooling oil flowing to other positions, and the suction filter assembly 40 is set in the oil chamber 11, so that the cooling oil in the oil chamber 11 can be better pumped out, and when the vehicle rolls, the oil suction port 41 is located below the liquid level of the cooling oil in the oil chamber 11, so that the oil pump assembly 30 can be prevented from being sucked empty, and the oil suction port 41 can still suck the cooling oil into the suction filter assembly 40 to cool the transmission 70 and the motor 80 normally.

[0042] As shown in Figures 4-6, when the vehicle tilts forward, the cooling oil level has a first negotiation position 50 with the bottom of the housing 10. When the vehicle tilts backward, the cooling oil level has a second negotiation position 60 with the bottom of the housing 10. The oil suction port 41 is located between the first negotiation position 50 and the second negotiation position 60. In other words, when the vehicle tilts forward, the cooling oil also tilts forward. At this time, the cooling oil position toward the rear will negotiate with the bottom of the housing 10, that is, the first negotiation position 50. It is understandable that the position forward of this position will be below the cooling oil level. Similarly, when the vehicle tilts backward, the cooling oil also tilts backward. At this time, the cooling oil position toward the front will negotiate with the bottom of the housing 10, that is, the second negotiation position 60. It is understandable that the position backward of this position will be below the cooling oil level. It should be noted that the first negotiation position 50 is located behind the second negotiation position 60. Therefore, between the first and second negotiation positions 50, 60, when the vehicle is tilted forward or backward, the oil suction port 41 is located below the cooling oil level. Positioning the oil suction port 41 between the first and second negotiation positions 50, 60 prevents the oil pump assembly 30 from being drained when the vehicle is tilted forward or backward. The oil suction port 41 can still draw cooling oil into the filter assembly 40, effectively cooling the transmission 70 and motor 80.

[0043] Furthermore, as shown in Figures 4-6 , the cross-section of the oil intake port 41 is constructed into an arc-shaped structure. It should be noted that the positions of the oil level at different inclination angles are determined through simulation or calculation, and the curve of the oil intake port 41 is fitted to these oil level lines. This maximizes the cross-section of the oil intake port 41 while ensuring that the oil intake port 41 is below the oil level at different inclination angles, ensuring that the required oil flow rate is met.

[0044] In addition, as shown in Figures 1 and 7 to 9, the electric drive assembly 1 also includes: a transmission 70 and a motor 80. The transmission 70 is located in the upper left of the oil chamber 11, and the motor 80 is located in the upper right of the oil chamber 11. The transmission 70 and the motor 80 are respectively connected to the oil outlet of the cooling assembly 20. The transmission 70 is mainly used to change the speed and torque of the engine, and the motor 80 can provide electric driving force after operation. The transmission 70 is set in the upper left of the oil chamber 11, and the motor 80 is set in the upper right of the oil chamber 11. Moreover, the transmission 70 and the motor 80 are located at the same height position, which facilitates the arrangement of the transmission 70 and the motor 80, can reduce the space occupied by the transmission 70 and the motor 80, and at the same time, the cooling oil in the oil chamber 11 can be better passed to the transmission 70 and the motor 80. The transmission 70 and the motor 80 are respectively connected to the oil outlet of the cooling component 20, so that the cooling oil can be respectively introduced into the positions of the transmission 70 and the motor 80 after passing through the oil outlet of the cooling component 20, thereby cooling the transmission 70 and the motor 80 and making the transmission 70 and the motor 80 work more stably.

[0045] Of course, as shown in Figures 1, 4-9, the housing 10 is provided with an oil return portion 81. The oil return portion 81 is located below the motor 80 and is tilted toward the oil chamber 11. When the vehicle tilts right, the angle is α, and the angle between the oil return portion 81 and the horizontal plane is β. The relationship between α and β is: β ≥ α. The oil return portion 81 is provided on the housing 10. The oil return portion 81 is located below the motor 80 and is tilted toward the oil chamber 11. This allows the cooling oil passing through the motor 80 to flow back into the oil chamber 11 through the oil return portion 81, thereby forming a circulation within the electric drive assembly 1.

[0046] The angle when the vehicle tilts to the right is α, and the angle between the oil return portion 81 and the horizontal plane is β, β≥α. It can be understood that when the vehicle tilts to the right, the cooling oil will also tilt to the right. At this time, the cooling oil flows to the right as a whole. Since the oil return portion 81 is tilted toward the oil chamber 11, when the angle between the oil return portion 81 and the horizontal plane gradually increases, when the vehicle tilts to the right, the oil return portion 81 will gradually block the cooling oil in the oil chamber 11 from flowing to the right. When the angle between the oil return portion 81 and the horizontal plane is greater than or equal to the angle of the vehicle tilting to the right, when the vehicle tilts to the right, the oil return portion 81 can block the cooling oil in the oil chamber 11 from flowing to the right, so that the cooling oil can be stored in the oil chamber 11, thereby preventing the oil pump assembly 30 from being sucked empty, and the oil suction port 41 can still suck the cooling oil into the filter assembly 40 to cool the transmission 70 and the motor 80 normally.

[0047] In addition, as shown in Figures 7 to 9, the electric drive assembly 1 also includes: a motor end cover 90, which is arranged at the end of the motor 80 away from the transmission 70, and the motor end cover 90 is arranged to protrude toward the inside of the housing 10. The motor end cover 90 is the back cover of the motor 80, which can completely seal and fix the components inside the motor 80 to prevent them from being damaged and failing due to external influences, and can also protect the motor 80 and prevent external objects from entering the interior of the motor 80. The motor end cover 90 is arranged at the end of the motor 80 away from the transmission 70, so that the motor end cover 90 can avoid interfering with the connection between the transmission 70 and the motor 80. In addition, the motor end cover 90 is closer to the housing 10 and can be connected to the outside, which is beneficial to the heat dissipation of the motor 80. The motor end cover 90 is arranged to protrude toward the inside of the housing 10. In this way, the volume of the cavity in the right motor end cover 90 is compressed while ensuring a safe distance from the motor 80, further reducing the amount of oil stored on the motor 80 side, so that more cooling oil on the motor 80 side can flow back into the oil chamber 11, avoiding the oil pump assembly 30 from being sucked empty.

[0048] It should be noted that since the space on one side of the transmission 70 is smaller, when the electric drive assembly 1 tilts to the left as the vehicle does, a large amount of oil will not be stored on the left side of the transmission 70, the oil level will be much higher than the oil suction port 41, and the oil pump assembly 30 will not be sucked empty.

[0049] According to an optional embodiment of the present application, as shown in Figure 3, the oil pump assembly 30 is located diagonally below the output shaft 83 of the motor 80. As will be appreciated, the gears on the output shaft 83 of the motor 80 are smaller, leaving more available space around them. Placing the oil pump assembly 30 diagonally below the output shaft 83 of the motor 80 does not increase the dimensions of the electric drive assembly 1 in any direction, thus making the structure of the electric drive assembly 1 more compact and more integrated. Furthermore, arranging the oil pump assembly 30 diagonally below the output shaft 83 of the motor 80 reduces the distance the oil pump assembly 30 pumps oil, ensuring the oil pump assembly 30's head, and improving the oil pumping efficiency. The oil pump assembly 30's head is defined as the suction head + the pressure head, where the suction head refers to the height of the oil pumped by the oil pump assembly 30. Generally speaking, the smaller the height difference between the oil level and the inlet of the oil pump assembly 30, the better the oil pumping efficiency. However, when the oil temperature is low or the oil resistance is high, there will be head loss. Therefore, the distance the oil pump assembly 30 pumps oil should be minimized.

[0050] Specifically, as shown in FIG10 , the transmission 70 is provided with a first housing 71, and the motor 80 is provided with a second housing 84. The first housing 71 is connected to the second housing 84. The second housing 84 is provided with a suction chamber 85. The suction assembly 40 is disposed in the suction chamber 85. An oil pump pipe 31 is provided between the suction assembly 40 and the oil pump assembly 30. The oil pump pipe 31 is disposed in the first housing 71, and the oil discharge port 42 is disposed opposite to the inlet of the oil pump pipe 31. Connecting the first housing 71 to the second housing 84 fixes the transmission 70 and the motor 80 together, thereby improving the integration of the electric drive assembly 1.

[0051] A suction chamber 85 is provided in the second housing 84, allowing the suction assembly 40 to be positioned within the suction chamber 85. This allows the suction assembly 40 to be secured and stably filter the cooling oil within the suction chamber 85. An oil pump pipe 31 is provided between the suction assembly 40 and the oil pump assembly 30. The oil pump pipe 31 is disposed within the first housing 71, further securing the oil pump pipe 31 and providing greater stability. The oil discharge port 42 is positioned opposite the inlet of the oil pump pipe 31. Cooling oil filtered by the suction assembly 40 can enter the oil pump pipe 31 through the oil discharge port 42 and the inlet of the oil pump pipe 31, thereby entering the oil pump assembly 30. Furthermore, it should be noted that the suction chamber is integrally cast in the housing 10 between the suction port 41 and the inlet of the oil pump pipe 31. This arrangement fully utilizes the space at the bottom of the housing 10 and provides greater flexibility in the placement of the suction port 41.

[0052] Optionally, as shown in FIG10 , the electric drive assembly 1 further includes a seal 100 disposed between the first housing 71 and the second housing 84. The seal 100 can function as a seal. When the first housing 71 and the second housing 84 are connected, the seal 100 can seal the gap between the first housing 71 and the second housing 84, forming a closed oil passage. This allows the cooling oil to enter the pump oil pipe 31 after being filtered through the suction filter assembly 40 from the oil suction port 41, thereby improving the reliability and effectiveness of cooling oil filtration in the electric drive assembly 1.

[0053] The vehicle 2 according to the embodiment of the present application includes: the electric drive assembly 1 of the above embodiment, as shown in FIG11 .

[0054] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0055] In the description of the present application, "first feature" and "second feature" may include one or more of the features. In the description of the present application, "plurality" means two or more. In the description of the present application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. In the description of the present application, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0056] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0057] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electric drive assembly (1), characterized in that: include: A housing (10), wherein an oil chamber (11) is formed at the bottom of the housing (10); A cooling component (20), wherein the cooling component (20) is disposed in the housing (10); an oil pump assembly (30), the oil pump assembly (30) being disposed in the housing (10), the oil pump assembly (30) being communicated with the oil chamber (11) and the cooling assembly (20) respectively so as to pump cooling oil in the oil chamber (11) into the cooling assembly (20); and A filter assembly (40) is disposed in the oil chamber (11), and is provided with an oil suction port (41) and an oil discharge port (42). The oil discharge port (42) is connected to the oil pump assembly (30). When the vehicle rolls, the oil suction port (41) is located below the liquid level of the cooling oil in the oil chamber (11).

2. The electric drive assembly (1) according to claim 1, characterized in that: When the vehicle tilts forward, the liquid level of the cooling oil and the bottom of the housing (10) have a first negotiation position (50), and when the vehicle tilts backward, the liquid level of the cooling oil and the bottom of the housing (10) have a second negotiation position (60), and the oil suction port (41) is located between the first negotiation position (50) and the second negotiation position (60).

3. The electric drive assembly (1) according to claim 1 or 2, characterized in that: The cross section of the oil suction port (41) is configured as an arc-shaped structure.

4. The electric drive assembly (1) according to any one of claims 1 to 3, characterized in that: Also includes: A transmission (70), the transmission (70) being located at the upper left of the oil chamber (11); and The motor (80) is located at the upper right of the oil chamber (11), and the transmission (70) and the motor (80) are respectively connected to the oil outlet of the cooling component (20).

5. The electric drive assembly (1) according to claim 4, characterized in that: The housing (10) is provided with an oil return portion (81), the oil return portion (81) is located below the motor (80), the oil return portion (81) is tilted toward the oil chamber (11), the angle when the vehicle tilts right is α, the angle between the oil return portion (81) and the horizontal plane is β, and the relationship between α and β is: β≥α.

6. The electric drive assembly (1) according to claim 4 or 5, characterized in that: Also includes: A motor end cover (90), wherein the motor end cover (90) is arranged at an end of the motor (80) away from the transmission (70), and the motor end cover (90) is arranged to protrude toward the inside of the housing (10).

7. The electric drive assembly (1) according to any one of claims 4 to 6, characterized in that: The oil pump assembly (30) is located obliquely below the output shaft (83) of the motor (80).

8. The electric drive assembly (1) according to any one of claims 4 to 7, characterized in that: The transmission (70) is provided with a first housing (71), and the motor (80) is provided with a second housing (84). The first housing (71) is connected to the second housing (84), and the second housing (84) is provided with a suction chamber (85). The suction assembly (40) is arranged in the suction chamber (85). An oil pump pipe (31) is arranged between the suction assembly (40) and the oil pump assembly (30), and the oil pump pipe (31) is arranged in the first housing (71). The oil discharge port (42) is arranged opposite to the inlet of the oil pump pipe (31).

9. The electric drive assembly (1) according to claim 8, characterized in that: Also includes: A sealing member (100), wherein the sealing member (100) is disposed between the first box body (71) and the second box body (84).

10. A vehicle (2), characterized in that: include: The electric drive assembly (1) according to any one of claims 1 to 9.

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