Electric motor and vehicle

Abstract

The invention discloses a motor and a vehicle, and relates to the technical field of motors, the motor comprises a shell, a driving assembly and an oil pumping assembly, an oil accumulation area used for accumulating lubricating oil is formed at the bottom of an inner cavity of the shell, a partition plate is arranged in the inner cavity, and the partition plate divides the inner cavity into two independent cavities distributed in the left-right direction; the bottom of the partition plate extends into the oil accumulation area; a driving assembly is arranged in each cavity; the oil pumping assembly is installed on the partition plate and located in the oil accumulation area. The partition plate is provided with at least two first oil passing holes, the at least two first oil passing holes are formed in the two sides, in the front-back direction, of the oil pumping assembly respectively, and each first oil passing hole communicates with the two cavities. The at least two first oil passing holes are formed in the oil accumulation area, so that lubricating oil in the independent cavities can circulate mutually, the situation that the lubricating oil is accumulated in the cavities is avoided, the circulating efficiency of the lubricating oil is improved, the situation that the lubricating oil stays at the driving assembly for a long time is reduced, and the oil stirring loss is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electric motors, and in particular to an electric motor and a vehicle. Background Art

[0002] In recent years, with the continuous development of the new energy vehicle industry, major automobile companies and users have paid more and more attention to the power system of new energy vehicles, especially the structural form of the power system and the spatial layout of the whole vehicle.

[0003] Distributed electric drive systems have gradually become the main choice for new energy vehicle power systems in existing technologies because of their advantages of better traction, independent control of multiple motors, high energy efficiency and high space utilization.

[0004] However, the interior of the distributed electric drive motor usually needs to be divided into independent chambers, each of which is equipped with an independent motor. However, since each motor is controlled independently, the specific working conditions in each chamber are also different. The lubricating oil consumption and reflux speed in different chambers are different, resulting in different lubricating oil return efficiency in different chambers, which will cause problems such as lubricating oil accumulation, low circulation efficiency and high oil churning loss in some chambers. Summary of the invention

[0005] The main purpose of the present invention is to provide an electric motor and a vehicle, aiming to solve the problems of lubricating oil accumulation in some chambers of the distributed electric drive system in the prior art, low circulation efficiency and high oil churning loss.

[0006] To achieve the above object, the electric motor provided by the present invention comprises:

[0007] A housing, wherein an oil accumulation area for accumulating lubricating oil is formed at the bottom of the inner cavity of the housing, a partition is arranged in the inner cavity, the partition divides the inner cavity into two chambers distributed in the left-right direction and independent of each other, and the bottom of the partition extends into the oil accumulation area;

[0008] A driving assembly, wherein each of the chambers is provided with the driving assembly;

[0009] An oil pump assembly, the oil pump assembly is mounted on the partition and located in the oil accumulation area, the oil pump assembly is used to extract lubricating oil from the oil accumulation area and pump it to each of the driving assemblies;

[0010] At least two first oil holes are formed on the partition plate, and the at least two first oil holes are respectively arranged on both sides of the oil pump assembly along the front-to-back direction, and each of the first oil holes is connected to the two chambers.

[0011] In one embodiment, each of the driving assemblies comprises a motor shaft gear, an intermediate shaft gear and an output shaft gear meshed in sequence, and the intermediate shaft gear and the motor shaft gear are located above the oil pump assembly.

[0012] In one embodiment, at least one second oil hole is further formed on the partition plate, and the second oil hole is correspondingly arranged between the oil pump assembly and the motor shaft gear, and each of the second oil holes is connected to the two chambers.

[0013] In one embodiment, there are a plurality of the second oil holes, and the plurality of the second oil holes are arranged below the motor shaft gear at intervals along the front-to-back direction.

[0014] In one embodiment, each of the driving components further includes a motor rotor connected to the motor shaft gear and a motor stator sleeved outside the motor rotor, the motor stator outer shell is provided with a shell, and the bottom of the shell is provided with an oil return hole connected to the oil accumulation area.

[0015] In one embodiment, the bottom area of ​​the shell near the oil pump assembly protrudes away from the inner cavity to form an oil accumulation groove, and a reflux channel connected to the oil accumulation groove is formed between the bottom of the shell and the shell.

[0016] In one embodiment, in each of the chambers, the shell and the partition form a gear chamber connected to the oil accumulation area, the motor shaft gear, the intermediate shaft gear and the output shaft gear are all arranged in the gear chamber, and the gear chamber is provided with an arc-shaped baffle, the arc-shaped baffle is spaced apart from the output shaft gear, and the arc-shaped baffle extends upward from the bottom of the output shaft gear along the outer circumference of the output shaft gear so that the arc-shaped baffle blocks the side of the output shaft gear facing the oil pump assembly, and an oil guide rib is also provided at a position in the chamber corresponding to the top of the arc-shaped baffle, and the lubricating oil flowing along the arc-shaped baffle to the top of the arc-shaped baffle is guided to the oil accumulation area through the oil guide rib.

[0017] In one embodiment, the oil inlet of the oil pump assembly is arranged horizontally, and the oil guide rib is arranged at an angle to the oil inlet of the oil pump assembly.

[0018] In one embodiment, in each of the chambers, the arc-shaped baffle forms an oil baffle area on a side facing the output shaft gear, and the partition plate is provided with at least one first oil-passing hole at a position corresponding to the oil baffle area.

[0019] In one embodiment, each of the chambers is further provided with an oil collecting structure, which is located above the meshing point between the intermediate shaft gear and the output shaft gear, and has an oil outlet, which is used to collect the lubricating oil splashed from the intermediate shaft gear and the meshing shaft gear, and spray the collected lubricating oil from the oil outlet to the intermediate shaft gear and the output shaft gear.

[0020] In one embodiment, the oil pump assembly includes a suction filter and an oil pump, wherein the suction filter is located at a position of one of the chambers corresponding to the oil accumulation area, the suction filter is used to absorb and filter the lubricating oil in the oil accumulation area and supply it to the oil pump, and the oil pump is used to pump lubricating oil for each of the drive components.

[0021] The present invention also provides a vehicle, wherein the vehicle uses the above-mentioned electric motor.

[0022] The technical solution of the present invention adopts the above technical features, and divides the inner cavity of the shell into two independent chambers through a partition, and a driving assembly is respectively arranged in each chamber to realize independent driving. In addition, at least two first oil holes are arranged at the position corresponding to the oil accumulation area at the bottom of the partition, and the two chambers are connected through at least two first oil holes, so that the lubricating oil in the oil accumulation area in each chamber can be evenly distributed, avoiding the problem of lubricating oil accumulation in a certain chamber. At the same time, at least two first oil holes are respectively located on the front and rear sides of the pump oil assembly, that is, on both sides along the extension direction of the vehicle, so that when the vehicle is in uphill and downhill working conditions and the body is tilted, there will be at least one first oil hole to ensure the circulation of lubricating oil between the two chambers, so that the vehicle can still ensure that there is no lubricating oil accumulation in the chamber under the special working condition of the body tilting. The present invention is designed to set at least two first oil holes at the position corresponding to the oil accumulation area at the bottom of the partition, so that the lubricating oil in each independent chamber can circulate with each other, avoiding the situation of lubricating oil accumulation in the chamber, thereby improving the circulation efficiency of the lubricating oil, reducing the situation of lubricating oil staying too long at the driving assembly, and reducing the oil stirring loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of a front cross-sectional structure of a motor provided by the present invention;

[0025] Figure 2A schematic diagram of a side cross-sectional structure of an embodiment of a motor provided by the present invention;

[0026] Figure 3 for Figure 2 A schematic diagram of the structure of the hidden drive assembly and the oil pump assembly;

[0027] Figure 4 A schematic side cross-sectional structural diagram of another embodiment of the motor provided by the present invention;

[0028] Figure 5 A schematic diagram of a partial structure of a side cross-section of an embodiment of a motor provided by the present invention.

[0029] Description of Figure Numbers:

[0030] 100. Electric motor; 1. Casing; 11. Oil accumulation area; 12. Partition; 121. First oil hole; 122. Second oil hole; 13. Chamber; 14. Shell; 141. Oil return hole; 15. Gear chamber; 151. Arc baffle; 152. Oil guide rib; 153. Oil baffle area; 16. Oil collecting structure; 161. Oil outlet; 2. Drive assembly; 21. Motor shaft gear; 22. Intermediate shaft gear; 23. Output shaft gear; 24. Motor rotor; 25. Motor stator; 3. Oil pump assembly; 31. Suction filter.

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] It can be understood that different motors in a distributed electric drive motor are independently controlled and operated. In order to avoid mutual interference between the motors and to better control the motor temperature, the interior of the distributed electric drive motor usually needs to be divided into independent chambers, each of which is equipped with an independent motor. However, since each motor is independently controlled, the specific working conditions in each chamber are also different. The lubricating oil consumption and reflux speed in different chambers are different, resulting in different lubricating oil return efficiency in different chambers, which will cause problems such as lubricating oil accumulation, low circulation efficiency and high oil stirring loss in some chambers.

[0036] To solve the above problems, the present invention provides a motor 100 .

[0037] Please combine Figures 1 to 3 It should be noted that Figure 2 For Figure 1 A side sectional schematic diagram after hiding the housing 1, the motor stator 25 and the motor rotor 24 on the basis of the housing 1, in one embodiment of the present invention, the motor 100 includes a housing 1, a drive assembly 2 and an oil pump assembly 3, the bottom of the inner cavity of the housing 1 is formed with an oil accumulation area 11 for storing lubricating oil, and a partition 12 is arranged in the inner cavity, the partition 12 divides the inner cavity into two chambers 13 distributed in the left and right directions and independent of each other, and the bottom of the partition 12 extends into the oil accumulation area 11; a drive assembly 2 is arranged in each chamber 13; the oil pump assembly 3 is installed on the partition 12 and is located in the oil accumulation area 11, and the oil pump assembly 3 is used to extract lubricating oil from the oil accumulation area 11 and pump it to each drive assembly 2; at least two first oil holes 121 are opened on the partition 12, and at least two first oil holes 121 are arranged on both sides of the oil pump assembly 3 along the front and rear direction, and each first oil hole 121 connects the two chambers 13.

[0038] It should be noted that the above-mentioned left and right directions are left and right directions with reference to the vehicle, that is, the width direction of the vehicle, and the front and rear directions are with reference to the direction of travel of the vehicle, that is, the length direction of the vehicle. A drive component 2 is respectively provided in the two chambers along the left and right directions of the motor 100, and each drive component 2 is used to drive the left and right wheels of the vehicle, thereby realizing independent control of the left and right wheels. The partition penetrates the inner cavity in the vertical direction and extends into the oil accumulation area 11, and is connected to the bottom of the outer shell, thereby completely dividing the inner cavity into two independent chambers. The oil pump assembly 3 needs to continuously and stably extract lubricating oil from the oil accumulation area 11 to lubricate the drive assembly 2. Placing the oil pump assembly 3 in the oil accumulation area 11 can reduce the oil pump head (i.e., the distance between the oil suction port and the power source), reduce the initial operating resistance of the hydraulic system, ensure that the oil pump assembly 3 can quickly and efficiently extract the engine oil, avoid oil supply delays or interruptions caused by the oil pump assembly 3 being too far away from the lubricating oil level when starting, and also avoid the oil pump assembly 3 being unable to extract lubricating oil when the lubricating oil level is low under special circumstances. The number of first oil holes 121 is at least one on each of the front and rear sides of the oil pump assembly 3. The specific number and opening area of ​​the first oil holes 121 can be changed according to the actual application scenario and needs. Since the area of ​​the first oil holes 121 is smaller than the overall structure and cannot be seen clearly, it is replaced by a gray area, such as Figure 3 The irregular gray block structures on both sides of the triangular gray area represent the positions of the first oil holes 121 .

[0039] The technical solution of the present invention adopts the above technical features, and the inner cavity of the housing 1 is divided into two independent chambers 13 by a partition 12, and a driving assembly 2 is respectively arranged in each chamber 13 to realize independent driving. In addition, at least two first oil holes 121 are arranged at the bottom of the partition 12 corresponding to the oil accumulation area 11, and the two chambers 13 are connected through at least two first oil holes 121, so that the lubricating oil in the oil accumulation area 11 in each chamber 13 can be evenly distributed, avoiding the problem of lubricating oil accumulation in a certain chamber 13. At the same time, at least two first oil holes 121 are respectively located on the front and rear sides of the oil pump assembly 3, that is, on both sides along the extension direction of the vehicle, so that when the vehicle is in uphill or downhill working conditions and the body is tilted, there will be at least one first oil hole 121 to ensure the circulation of lubricating oil between the two chambers 13, so that the vehicle can still ensure that there is no lubricating oil accumulation in the chamber 13 under the special working condition of the body tilting. The present invention is designed to set at least two first oil holes 121 at the bottom of the partition 12 corresponding to the oil accumulation area 11, so that the lubricating oil in each independent chamber 13 can circulate with each other, avoiding the accumulation of lubricating oil in the chamber 13, thereby improving the circulation efficiency of the lubricating oil, reducing the situation where the lubricating oil stays in the drive component 2 for too long, and thus reducing the oil stirring loss.

[0040] It can be understood that the lubricating oil has a certain viscosity. When the driving component 2 (such as gears and bearings) rotates in the lubricating oil, it needs to overcome the viscous resistance of the lubricating oil. This part of the energy is used to overcome the internal friction of the lubricating oil, thereby resulting in energy loss. Therefore, if the lubricating oil cannot flow back in time and stays in the driving component 2 for too long, it will cause the driving component 2 to spend more energy to overcome the viscous resistance of the lubricating oil, increase the oil stirring loss, and cause the overall efficiency of the motor to decrease.

[0041] Specifically, the oil pump assembly 3 is located in the middle of the partition 12 along the left-right direction. When the car is in a tilted posture along the left-right direction, generally, the tilt angle will not exceed 45°. Therefore, the oil pump assembly 3 located in the middle of the left-right direction is still below the liquid level of the lubricating oil. In fact, under horizontal conditions, the lubricating oil level is higher than the oil pump assembly. Even if the tilt angle exceeds 45°, the oil pump assembly 3 can be ensured to be located at the liquid level of the lubricating oil. Therefore, the oil supply can be guaranteed under a larger tilt angle. Therefore, the oil pump assembly 3 is arranged in the middle of the partition 12 to ensure that the oil inlet of the oil pump assembly 3 is below the lubricating oil level when the vehicle body is tilted along the left-right direction, thereby ensuring the oil supply of the oil pump assembly 3, thereby improving the adaptability of the vehicle in different postures.

[0042] In one embodiment, each driving assembly 2 includes a motor shaft gear 21, an intermediate shaft gear 22 and an output shaft gear 23 that are meshed in sequence, and the intermediate shaft gear 22 and the motor shaft gear 21 are located above the oil pump assembly 3. The intermediate shaft gear 22 and the motor shaft gear 21 are arranged above the oil pump assembly 3, so that the layout of the driving assembly 2 in each chamber 13 is more reasonable, saving space while preventing the intermediate shaft gear 22 and the motor shaft gear 21 from being immersed in lubricating oil for a long time, preventing the lubricating oil from increasing friction to the motor shaft gear 21 and the intermediate shaft gear 22, preventing gear wear and reducing oil stirring loss.

[0043] Furthermore, at least one second oil hole 122 is formed on the partition plate 12 . The second oil hole 122 is correspondingly disposed between the oil pump assembly 3 and the motor shaft gear 21 . Each second oil hole 122 communicates with the two chambers 13 . The second oil hole 122 is arranged above the oil pump assembly 3 and below the motor shaft gear 21. It can be understood that when the vehicle is in a horizontal state or the tilt angle is not large, the second oil hole 122 is higher than the oil accumulation area 11, and a small amount of lubricating oil splashed on the partition 12 or the drive assembly 2 can enter the other chamber 13 through the second oil hole 122, and the lubricating oil in the oil accumulation area 11 will not flow into the other chamber 13 through the second oil hole 122. However, when the vehicle is in a state with a large tilt angle, such as when the vehicle is going downhill, the lubricating oil is exchanged and circulated through the first oil hole 121 and the second oil hole 122 at the front. At this time, due to the change in the posture of the vehicle, the first oil hole 121 at the rear is higher than the liquid level of the lubricating oil and no longer plays the role of circulating the lubricating oil. When the vehicle goes uphill, the lubricating oil is exchanged and circulated through the first oil hole 121 and the second oil hole 122 at the rear. At this time, due to the change in the posture of the vehicle, the first oil hole 121 at the front is higher than the liquid level of the lubricating oil and no longer plays the role of circulating the lubricating oil. The design of the second oil hole 122 increases the area of ​​communication between the two chambers 13, thereby improving the circulation efficiency of the lubricating oil. At the same time, it provides sufficient lubricating oil flow between the two chambers 13 of the vehicle in a special posture, ensuring the efficiency of uniform circulation of lubricating oil between the chambers 13 in any posture.

[0044] As mentioned above, the plurality of gray block areas at intervals on the top of the triangular gray area represent the second oil holes 122. Since the corresponding position of the oil pump assembly 3 is Figure 3 The triangular shaded area in the figure will cause leakage of oil in the oil accumulation area 11 when going uphill, so a hole cannot be opened at the triangular shaded area. Therefore, the first oil holes 121 are respectively arranged on both sides of the oil pump assembly 3 along the front-to-back direction, that is, avoiding the triangular shaded area.

[0045] Specifically, there are multiple second oil holes 122, and the multiple second oil holes 122 are arranged at intervals along the front-to-back direction below the motor shaft gear 21. By providing multiple second oil holes 122, the possibility of lubricating oil flowing from the second oil holes 122 to another chamber 13 is increased, the circulation efficiency of the lubricating oil is improved, and more channels for the lubricating oil to flow are provided when the vehicle is in a tilted posture.

[0046] Furthermore, each driving assembly 2 further includes a motor rotor 24 connected to the motor shaft gear 21 and a motor stator 25 sleeved on the motor rotor 24. The motor stator 25 is provided with a housing 14, and the bottom of the housing 14 is provided with an oil return hole 141 connected to the oil accumulation area 11. The lubricating oil in the motor rotor 24 and the stator flows back to the oil accumulation area 11 through the oil return hole 141 at the bottom of the housing 14, thereby ensuring the circulation performance of the lubricating oil and ensuring uniform lubrication. At the same time, the accumulation of oil in the housing 14 can be avoided, so as to reduce the wear of the motor rotor 24 and the stator and reduce the failure rate.

[0047] It should be noted that the lubricating oil in the oil accumulation area 11 has a static oil level and a dynamic oil level. When the motor 100 is stopped and not started, the oil pump assembly 3 will not pump the lubricating oil to the drive assembly 2, and all the lubricating oil will be deposited in the oil accumulation area 11. At this time, the lubricating oil level is at the highest point, which is the static oil level. The static oil level needs to completely submerge the oil pump assembly 3, but the static oil level cannot be too high to avoid excessive contact between the output shaft gear 23 and the motor rotor 24 and other components and the lubricating oil, resulting in increased oil stirring losses. After the motor 100 is started, the oil pump assembly 3 pumps the lubricating oil to the drive assembly 2 for lubrication, so the lubricating oil level in the oil accumulation area 11 will decrease. The liquid level at this time is the dynamic oil level, and the dynamic oil level still needs to be kept submerged above most of the oil pump assembly 3, so as to ensure that the oil pump assembly 3 can continuously extract sufficient lubricating oil to be pumped to each drive assembly. In order to ensure the liquid level height of the dynamic oil level, it is necessary to adjust the height of the static oil level according to the height of the oil pump assembly 3 and the height of the lubricating oil liquid level drop during operation.

[0048] In one embodiment, the bottom of the housing 1 near the oil pump assembly 3 protrudes in a direction away from the inner cavity to form an oil accumulation groove 17, and the bottom of the housing and the housing enclose a reflux channel 171 connected to the oil accumulation groove 17. Since the oil pump assembly 3 is arranged on the partition 12, and the partition 12 is located in the middle of the inner cavity, the bottom of the housing protrudes downward near the middle to form the oil accumulation groove 17. The oil accumulation groove 17 forms a larger oil storage space, which can increase the lubricating oil reserve below the oil inlet of the oil pump assembly 3 and avoid the problem of insufficient lubricating oil during operation. The bottom of the housing 14 is separated from the bottom of the housing 1 to form a reflux channel 171, so that the lubricating oil flowing out of the housing 14 directly flows back to the oil accumulation groove 17 through the reflux channel 171, thereby improving the circulation efficiency of the lubricating oil.

[0049] Furthermore, an arc-shaped guide slope is formed at the connection between the oil accumulation groove and the reflux channel. The arc-shaped guide slope is used to guide the lubricating oil. The slope can make the flow of the lubricating oil smoother, reduce the generation of eddies and turbulence, thereby reducing flow resistance, and guide the lubricating oil to flow more smoothly into the oil accumulation groove, thereby improving flow efficiency and reducing energy loss of the lubricating oil during turning.

[0050] In one embodiment, in each chamber 13, the shell 14 and the partition 12 enclose a gear chamber 15 connected to the oil accumulation area 11, and the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23 are all arranged in the gear chamber 15. The gear chamber 15 is provided with an arc-shaped baffle 151, and the arc-shaped baffle 151 is arranged at an interval with the output shaft gear 23, and the arc-shaped baffle 151 extends upward from the bottom of the output shaft gear 23 along the outer circumference of the output shaft gear 23, so that the arc-shaped baffle 151 blocks the side of the output shaft gear 23 facing the oil pump assembly 3, and an oil guide rib 152 is also provided at a position corresponding to the top of the arc-shaped baffle 151 in the chamber 13, and the lubricating oil flowing to the top of the arc-shaped baffle 151 is guided to the oil accumulation area 11 through the oil guide rib 152.

[0051] It can be understood that the lubricating oil in the housing 14 flows back to the oil accumulation area 11 through the oil return hole 141, and the bottom of the gear cavity 15 is not blocked, so the lubricating oil on the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23 directly falls back into the oil accumulation area 11, and an arc-shaped baffle 151 is provided on the outer periphery of one side of the output shaft gear 23 facing the oil pump assembly 3, and an oil guide rib 152 is provided at the top of the arc-shaped baffle 151, and the lubricating oil is guided to the oil accumulation area 11 through the oil guide rib 152. Through the setting of the arc-shaped baffle 151, a certain oil level is accumulated between the output shaft gear 23 and the arc-shaped baffle 151, so that the oil level is higher than the oil inlet of the oil pump assembly 3 at all angles to meet the requirements of the hydraulic system, and at the same time, the lubricating oil is guided by the oil guide rib 152 so that the lubricating oil can avoid the oil inlet of the oil pump assembly 3.

[0052] Furthermore, the shell 14 covers the motor rotor 24 and the motor stator 25 in the inner cavity of the shell 14, and an opening is formed on the side of the shell 14 facing the partition 12, and the lubricating oil splashed from the motor rotor 24 and the motor stator 25 can flow out through the opening. At the same time, because the opening is toward the side of the partition 12, the lubricating oil flowing out of the opening can directly fall into the oil accumulation area 11 and enter the oil accumulation tank, thereby improving the reflux speed of the lubricating oil, improving the circulation efficiency of the lubricating oil, and thereby improving the overall heat dissipation efficiency and performance of the motor 100.

[0053] In a specific embodiment, the number of the first oil holes 121 is two, and the two first oil holes 121 are both arranged at the bottom, located at the position where the baffle is close to the bottom of the housing 1, and the two first oil holes 121 are respectively located at the front and rear sides of the oil pump assembly 3, and the number of the second oil holes 122 is four, and the four second oil holes 122 are arranged at intervals below the motor shaft gear 21 along the left-right direction and are higher than the aforementioned static oil level, the oil pump assembly 3 is located below the motor shaft gear 21, and the four second oil holes 122 are located on the same horizontal line and between the motor shaft gear 21 and the oil pump assembly 3. The motor stator 25 and the motor rotor 24 are arranged close to the edge of the shell 1 along the front-to-back direction, so the lubricating oil in the shell 14 cannot directly fall back into the oil accumulation area 11, and a plurality of oil return holes 141 are arranged at intervals along the front-to-back direction at the bottom of the shell 14 so that the lubricating oil in the shell 14 can flow back into the oil accumulation area 11, and the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23 are all located in the gear cavity 15, and there is no baffle at the bottom of the gear cavity 15, so the lubricating oil on the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23 can directly fall back into the oil accumulation part. After the motor 100 starts to run, the oil pump assembly 3 first extracts lubricating oil from below the lubricating oil level in the oil accumulation part, and pumps it to the top of the housing 1, and sprays lubricating oil on the motor stator 25, the motor rotor 24, the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23 respectively. The lubricating oil is evenly coated on the surfaces of the motor stator 25, the motor rotor 24, the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23 and the surfaces of the gear teeth. As the motor stator 25, the motor rotor 24, the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23 rotate, the lubricating oil is transferred between each other for lubrication and heat dissipation. The lubricating oil motor stator 25, the motor rotor 24, the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23 are The top of the shaft gear 22 and the output shaft gear 23 is sprayed, and after free sliding on the outer wall and moving downward under the drive of gear meshing, the lubricating oil finally moves to the bottom of the motor stator 25, the motor rotor 24, the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23. The used lubricating oil of the motor stator 25 and the motor rotor 24 falls back to the bottom wall of the housing 14, and flows back to the oil accumulation area 11 through the return oil hole 141 and the reflux channel 171. The used lubricating oil of the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23 directly falls back to the oil accumulation area 11. After the lubricating oil is mixed with the lubricating oil in the oil accumulation area 11, it is extracted and filtered again through the oil pump component 3, and then pumped to each drive component 2.

[0054] The above process is the lubricating oil flow process in a single chamber 13. The process of another chamber 13 is the same and will not be repeated here. The lubricating oil flow between different chambers 13 is realized through the first oil hole 121 and the second oil hole 122. When the vehicle is in a horizontal driving or tilting angle posture, the lubricating oil in the oil accumulation area 11 is exchanged through the two first oil holes 121 set in the oil accumulation area 11. At the same time, the four second oil holes 122 located above the dynamic liquid surface are used to guide the lubricating oil flowing down the partition 12 to another chamber 13, thereby realizing the exchange of lubricating oil. It is understood that the lubricating oil will splash around when the motor shaft gear 21, the intermediate shaft gear 22 and the output shaft gear 23 rotate. Part of the lubricating oil splashes onto the partition 12 and flows down along the partition 12. At the same time, since the four second oil holes 122 are correspondingly arranged at the bottom of the motor shaft gear 21, when the motor shaft gear 21 drives the lubricating oil to rotate, the lubricating oil can be splashed into another chamber 13 through the four second oil holes 122. Therefore, when the vehicle is in a horizontal posture or a posture with a low tilt angle, the two first oil holes 121 and the four second oil holes 122 simultaneously play a role in exchanging the lubricating oil flow. When the vehicle goes uphill and the angle is large, the first oil hole 121 on the front side is raised, while the lubricating oil level remains horizontal. At this time, the first oil hole 121 on the front side is exposed to the lubricating oil level and can no longer play the role of lubricating oil flow exchange. At this time, the lubricating oil flow exchange between the two chambers 13 is mainly carried out by the first oil hole 121 on the rear side. When the tilt angle of the vehicle continues to increase, until the second oil hole 122 is also located below the lubricating oil level, the second oil hole 122 can also play the role of lubricating oil flow exchange; when the vehicle goes downhill and the angle is large, the first oil hole 121 on the rear side is raised, while the lubricating oil level remains horizontal. At this time, the first oil hole 121 on the rear side is exposed to the lubricating oil level and can no longer play the role of lubricating oil flow exchange. At this time, the first oil hole 121 on the front side is mainly used to exchange the lubricating oil flow between the two chambers 13. When the tilt angle of the vehicle continues to increase, until the second oil hole 122 is also located below the lubricating oil level, the second oil hole 122 can also play the role of lubricating oil flow exchange. When the second oil hole 122 is also located below the lubricating oil level, the second oil hole 122 can also play a role in exchanging the lubricating oil flow. It can be seen that when the vehicle is in an uphill or downhill posture and the inclination angle is large, one of the first oil holes 121 will lose its function. This is why the present application requires at least one first oil hole 121 to be provided on the front and rear sides of the oil pump assembly 3. As described above, by providing at least one first oil hole 121 on the front and rear sides of the oil pump assembly 3, the lubricating oil flow exchange between the two chambers 13 can be guaranteed regardless of whether the vehicle is in a horizontal posture, an uphill posture or a downhill posture, so that the lubricating oil in each independent chamber 13 can circulate with each other, avoiding the accumulation of lubricating oil in the chamber 13, thereby improving the circulation efficiency of the lubricating oil and reducing the situation where the lubricating oil stays too long in the drive assembly 2, thereby reducing the oil stirring loss.

[0055] It should be noted that the number of the first oil holes 121 directly affects the flow speed and flow rate of the oil between the two chambers 13. It is necessary to ensure sufficient oil flow to maintain the lubricating oil balance of the two chambers 13. If the number of oil holes is too small, it may lead to insufficient oil supply in a certain chamber 13, poor lubrication effect, and increased wear risk. If too many oil holes are opened on the partition 12, the structural strength of the partition 12 will be weakened, which may cause the partition 12 to deform or rupture under high pressure or long-term use. Therefore, it is necessary to reasonably set the number of oil holes while ensuring the structural strength and stability of the partition 12.

[0056] In another specific embodiment, when the space inside the motor 100 is relatively sufficient, a plurality of first oil holes 121 may be respectively provided on the front and rear sides of the oil pump assembly 33, so as to increase the connection area between the two chambers 13, thereby making the lubricating oil flow exchange efficiency between the two chambers 13 higher and making the lubricating oil distribution between the two chambers 13 more uniform. It can be understood that the size of the first oil hole 121 cannot be too small, because the lubricating oil itself is viscous, and a first oil hole 121 with too small a size will cause the lubricating oil to fail to flow smoothly. Therefore, the size selection of the plurality of first oil holes 121 needs to be adjusted according to the size of the space inside the motor 100 and the layout of the first oil holes 121.

[0057] The multiple first oil holes 121 can make the pressure distribution of the lubricating oil more uniform when it flows through the partition 12, thereby reducing the local pressure difference and the flow resistance, and also help the lubricating oil to be evenly distributed between the two chambers 13, avoiding too much or too little lubricating oil in a local area. The multiple first oil holes 121 can keep the lubricating oil in a relatively stable state during the flow process, reduce the generation of eddy currents and turbulence, and thus improve the flow efficiency. Therefore, when the first oil holes 121 are set to be multiple, it helps to make the lubricating oil exchange efficiency in the two chambers 13 higher, and further improve the uniformity of the lubricating oil.

[0058] At the same time, when there are multiple first oil holes 121, if the vehicle is in a horizontal driving or tilted posture, the lubricating oil in the oil accumulation area 11 is exchanged through the multiple first oil holes 121 arranged in the oil accumulation area 11. At the same time, the multiple second oil holes 122 located above the dynamic liquid surface are used to guide the lubricating oil flowing down the partition 12 to another chamber 13, thereby realizing the exchange of lubricating oil. When the vehicle goes uphill and the angle is large, the first oil holes 121 located on the front side are raised, and the lubricating oil liquid level remains horizontal. At this time, the first oil holes 121 on the front side are exposed to the lubricating oil liquid level and can no longer play the role of lubricating oil flow exchange. However, because there are multiple first oil holes 121 on the front side, not all of the first oil holes 121 on the front side will be raised and expose the lubricating oil liquid level at the same time. Therefore, at this time, not only can the lubricating oil flow exchange between the two chambers 13 be carried out by the first oil holes 121 on the rear side, but also the There are first oil holes 121 exposed from the lubricating oil surface for exchanging the lubricating oil flow between the two chambers 13, thereby increasing the number of first oil holes 121 below the lubricating oil surface, increasing the connection area between the two chambers 13, and helping to make the lubricating oil exchange efficiency in the two chambers 13 higher, further improving the uniformity of the lubricating oil. As the angle of the car increases, the number of the first oil holes 121 on the front side exposed from the lubricating oil surface increases continuously until all the first oil holes 121 on the front side are exposed. At this time, only the first oil holes 121 on the rear side are used to exchange the lubricating oil flow between the two chambers 13. It can be seen that during the change of the angle of the car, before the angle of the car is raised to the point where all the first oil holes 121 on the front side are exposed, there is always at least one first oil hole 121 on the front side located below the lubricating oil surface, thereby increasing the connection area between the two chambers 13 and improving the exchange efficiency of the lubricating oil.

[0059] Similarly, when the vehicle goes downhill at a large angle, the first oil holes 121 on the rear side are raised, while the lubricating oil level remains horizontal. At this time, the first oil holes 121 on the rear side are exposed to the lubricating oil level and can no longer play the role of lubricating oil flow exchange. However, because there are multiple first oil holes 121 on the rear side, not all of the first oil holes 121 on the rear side will be raised and expose the lubricating oil level at the same time. Therefore, at this time, not only the first oil holes 121 on the front side can exchange the lubricating oil flow between the two chambers 13, but also the first oil holes 121 on the rear side that are not exposed to the lubricating oil level can exchange the lubricating oil flow between the two chambers 13, thereby increasing the number of first oil holes 121 below the lubricating oil level and increasing the number of two chambers 13. 3 helps to make the lubricating oil exchange efficiency in the two chambers 13 higher, and further improves the uniformity of the lubricating oil. As the angle of the car continues to increase, the number of the first oil holes 121 on the rear side that are exposed to the lubricating oil liquid surface continues to increase, until all the first oil holes 121 on the rear side are fully exposed. At this time, the lubricating oil flow exchange between the two chambers 13 is performed only by the first oil holes 121 on the front side. It can be seen that during the change of the angle of the car, before the angle of the car is increased to the point where all the first oil holes 121 on the rear side are fully exposed, there is always at least one first oil hole 121 on the rear side located below the lubricating oil liquid surface, thereby increasing the connecting area between the two chambers 13 and improving the lubricating oil exchange efficiency.

[0060] As described above, by respectively arranging a plurality of first oil holes 121 on the front and rear sides of the oil pump assembly 3, the connection area between the two chambers 13 can be maximized regardless of whether the vehicle is in a horizontal position, an uphill position or a downhill position, thereby ensuring a higher efficiency in the exchange of the lubricating oil flow, so that the lubricating oil in each independent chamber 13 can circulate with each other, and the circulation efficiency is maintained at the highest value, thereby avoiding the accumulation of lubricating oil in the chamber 13, thereby improving the circulation efficiency of the lubricating oil, reducing the situation where the lubricating oil stays too long in the drive assembly 2, and thus reducing the oil stirring loss.

[0061] Furthermore, the oil inlet of the oil pump assembly 3 is arranged horizontally, and the oil guide rib 152 is arranged at an angle to the oil inlet of the oil pump assembly 3. In most cases, the vehicle is traveling horizontally, so the oil inlet of the oil pump assembly 3 is arranged horizontally to increase the contact area between the oil inlet and the liquid surface, and at the same time ensure that the oil enters the oil pump assembly 3 in a stable manner, reducing turbulence and fluctuations, and ensuring the operation stability and efficiency of the oil pump assembly 3.

[0062] As a preferred embodiment, the oil guide rib 152 and the oil inlet of the oil pump assembly 3 are arranged at an angle of 45°. Figure 3The triangular shaded area in the figure will cause the lubricating oil in the oil accumulation area 11 to leak when the vehicle is in an uphill posture. Therefore, the arc-shaped baffle 151 is located on the left side of the oil pump assembly 3, and the oil guide rib 152 is located above the oil pump assembly 3, so that the lubricating oil can just enter the triangular shaded area under the guidance of the oil guide rib 152, thereby avoiding the leakage of the lubricating oil and improving the rationality of the layout.

[0063] In one embodiment, in each chamber 13, the side of the arc-shaped baffle 151 facing the output shaft gear 23 forms an oil retaining area 153, and the partition plate 12 is provided with at least one first oil-passing hole 121 at a position corresponding to the oil-passing area 153. The first oil-passing hole 121 is arranged on the side of the arc-shaped baffle 151 facing the output shaft gear 23, that is, the side away from the oil pump assembly 3. As mentioned above, the first oil-passing hole 121 will not cause leakage of oil in the oil accumulation area 11 when the car is in an uphill posture, thereby ensuring the oil supply of the oil pump assembly 3.

[0064] Please combine Figure 4 and Figure 5 In one embodiment, each chamber 13 is further provided with an oil collecting structure 16 ( Figure 4 The oil collecting structure 16 is located above the meshing part of the intermediate shaft gear 22 and the output shaft gear 23. The oil collecting structure 16 has an oil outlet 161. The oil collecting structure 16 is used to collect the lubricating oil splashed from the intermediate shaft gear 22 and the meshing shaft gear, and spray the collected lubricating oil from the oil outlet 161 to the intermediate shaft gear 22 and the output shaft gear 23. It can be seen that there are two oil outlets, and the two oil outlets correspond to the intermediate shaft gear 22 and the output shaft gear 23 respectively, so that the lubricating oil sprayed from the oil outlet can be sprayed on the gear teeth of the intermediate shaft gear 22 and the output shaft gear 23, thereby lubricating the intermediate shaft gear 22 and the output shaft gear 23 again. At the same time, the lubricating oil will be applied to the motor shaft gear 21 under the drive of the intermediate shaft gear 22 and the output shaft gear 23, which improves the uniformity of the lubricating oil coating on the gear teeth of the intermediate shaft gear 22 and the output shaft gear 23, thereby improving the lubrication effect and heat dissipation effect.

[0065] By arranging an oil collecting structure 16 above the meshing point between the intermediate shaft gear 22 and the output shaft gear 23, the oil collecting structure 16 collects the lubricating oil splashed from the intermediate shaft gear 22 and the meshing shaft gears. On the one hand, it can avoid the accumulation of oil in the oil accumulation area, reduce the oil level in the oil accumulation area, avoid excessive contact between the output shaft gear 23 and the motor rotor 24 and the lubricating oil, resulting in increased oil stirring loss, and reduce the oil stirring loss. On the other hand, the lubricating oil can be accumulated and sprayed onto the intermediate shaft gear 22 and the output shaft gear 23 through the oil outlet 161, so that the intermediate shaft gear 22 and the output shaft gear 23 are lubricated again. At the same time, the intermediate shaft gear 22 can also transfer the lubricating oil to the motor shaft gear 21, thereby improving the uniformity of the lubricating oil coating of the entire drive component 2 and improving the lubrication effect.

[0066] Specifically, the oil pump assembly 3 includes a suction filter 31 and an oil pump. The suction filter 31 is located at a position of one of the chambers 13 corresponding to the oil accumulation area 11. The suction filter 31 is used to absorb and filter the lubricating oil in the oil accumulation area 11 and supply it to the oil pump. The oil pump is used to pump the lubricating oil for each driving assembly 2. When the lubricating oil is absorbed from the oil accumulation area 11 by the suction filter 31, larger impurities and particles in the lubricating oil are filtered out to prevent the impurities and particles from causing wear and damage to the oil pump and other components in the driving assembly 2, thereby ensuring the cleanliness of the lubricating oil, maintaining the performance of the oil product, and improving the overall efficiency of the motor 100, thereby extending the service life of the motor 100 and improving the stability of the motor 100.

[0067] It should be noted that the oil pump can be an independent oil pump set in each chamber 13, or one oil pump can be used to supply oil to two chambers 13 respectively. When an oil pump is independently set in each chamber 13, the oil pump of each chamber 13 can operate independently, and the problem of one chamber 13 will not affect another chamber 13. If one oil pump fails, the oil pump of the other chamber 13 can continue to work, ensuring that there is still a group of drive components 2 that can operate independently and normally; when one oil pump is used to supply oil to two chambers 13 respectively, it has a relatively simple structure and control system, which reduces the cost and design difficulty, but cannot ensure that the drive components 2 of the two chambers 13 operate independently. When the oil pump is damaged, both drive components 2 cannot operate normally.

[0068] The present invention also proposes a vehicle, which uses the above-mentioned motor 100. The specific structure of the motor 100 refers to the above-mentioned embodiment. Since the vehicle adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The vehicle using the above-mentioned motor 100 can ensure that the oil inlet of the oil pump assembly 3 is below the lubricating oil level, ensuring the oil supply of the oil pump assembly 3, regardless of whether the vehicle is in an uphill, downhill or tilted left or right posture, thereby improving the adaptability of the vehicle in different postures.

[0069] In a specific embodiment, the vehicle is front-wheel drive, and the two drive components 2 of the electric motor 100 are respectively used to drive the two front wheels of the vehicle. During driving, after the drive component 2 is started, the oil pump component 3 pumps the lubricating oil in the oil accumulation area 11 to the drive component 2, and the drive component 2 transmits the rotation to the two front wheels of the car through the output shaft gear 23, driving the two front wheels to rotate and thus driving the vehicle forward or backward. When driving in a straight line, the rotation speed and power of the drive components 2 in the two chambers 13 are the same, so the consumption of lubricating oil is almost the same, and the lubricating oil in the two chambers 13 is basically consistent. Then, when turning, the rotation speed of the inner wheel will be less than the rotation speed of the outer wheel. At this time, the power and rotation speed of the drive components 2 in the two chambers 13 are different, and the consumption of lubricating oil is also different. At this time There is a difference in the amount of lubricating oil in the two chambers 13. The lubricating oil in the chamber 13 with more lubricating oil is directed to the other chamber 13 through the first oil hole 121 and the second oil hole 122, thereby realizing the exchange of lubricating oil flow between the two chambers 13 and ensuring that the lubricating oil in the two chambers 13 is evenly distributed. During the driving process of the car, many situations such as the above-mentioned turns will occur, which will lead to different consumption of lubricating oil in the two chambers 13. For example, the electronic differential of the vehicle will adjust the output of the two drive components 2 in real time according to the speed, direction and road conditions of the vehicle, so that the left and right wheels have different speeds when needed; or on wet, icy or muddy roads, the anti-skid control system (TCS) will detect that a wheel is slipping and restore traction by adjusting the speed and torque of the drive motor. For example, if the left front wheel slips, the system will reduce the driving force of the left front wheel and increase the driving force of the right front wheel, so that the speeds of the two wheels are different to obtain the best traction; for example, during braking or deceleration, the distributed drive electric vehicle can convert kinetic energy into electrical energy through the regenerative braking system and store it in the battery. In this case, the system may adjust the speed of each wheel as needed to optimize energy recovery efficiency and braking force distribution. When the vehicle is unevenly loaded or driving on uneven roads, the loads on different wheels will be different, which may cause the drive motor to operate at different speeds to maintain the vehicle's smooth driving and optimal traction. In response to different situations, the lubricating oil loss in the two chambers 13 is different, resulting in different amounts of lubricating oil. Through the design of the first oil hole 121 and the second oil hole 122, the lubricating oil in each independent chamber 13 can circulate with each other, avoiding the accumulation of lubricating oil in the chamber 13, thereby improving the circulation efficiency of the lubricating oil and reducing the situation where the lubricating oil stays too long in the drive component 2, thereby reducing the oil stirring loss.

[0070] It can be understood that the aforementioned electric motor 100 has only two chambers 13 and two sets of drive components 2. If the vehicle is a four-wheel drive vehicle, an electric motor 100 can be set at the front wheel and the rear wheel of the vehicle, so that the four wheels of the vehicle can be driven by independent drive components 2.

[0071] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electric motor, characterized in that: include: A housing, wherein an oil accumulation area for accumulating lubricating oil is formed at the bottom of the inner cavity of the housing, a partition is arranged in the inner cavity, the partition divides the inner cavity into two chambers distributed in the left-right direction and independent of each other, and the bottom of the partition extends into the oil accumulation area; A driving assembly, wherein each of the chambers is provided with the driving assembly; An oil pump assembly, the oil pump assembly is mounted on the partition and located in the oil accumulation area, the oil pump assembly is used to extract lubricating oil from the oil accumulation area and pump it to each of the driving assemblies; At least two first oil holes are formed on the partition plate, and the at least two first oil holes are respectively arranged on both sides of the oil pump assembly along the front-to-back direction, and each of the first oil holes is connected to the two chambers.

2. The electric motor according to claim 1, characterized in that Each of the driving components comprises a motor shaft gear, an intermediate shaft gear and an output shaft gear which are meshed in sequence, and the intermediate shaft gear and the motor shaft gear are located above the oil pump component.

3. The electric motor according to claim 2, characterized in that At least one second oil hole is also formed on the partition plate. The second oil hole is correspondingly arranged between the oil pump assembly and the motor shaft gear. Each of the second oil holes communicates with the two chambers.

4. The electric motor according to claim 3, characterized in that There are multiple second oil holes, and the multiple second oil holes are arranged below the motor shaft gear at intervals along the front-to-back direction.

5. The electric motor according to claim 2, characterized in that Each of the driving components also includes a motor rotor connected to the motor shaft gear and a motor stator sleeved outside the motor rotor. The motor stator is outerly provided with a shell, and the bottom of the shell is provided with an oil return hole connected to the oil accumulation area.

6. The electric motor according to claim 5, characterized in that The bottom of the shell near the oil pump assembly protrudes in a direction away from the inner cavity to form an oil accumulation groove, and a reflux channel connected to the oil accumulation groove is formed between the bottom of the shell and the shell.

7. The electric motor according to claim 5, characterized in that In each of the chambers, the shell and the partition form a gear chamber connected to the oil accumulation area, the motor shaft gear, the intermediate shaft gear and the output shaft gear are all arranged in the gear chamber, and the gear chamber is provided with an arc-shaped baffle, the arc-shaped baffle is spaced apart from the output shaft gear, and the arc-shaped baffle extends upward from the bottom of the output shaft gear along the outer circumference of the output shaft gear so that the arc-shaped baffle blocks the side of the output shaft gear facing the oil pump assembly, and an oil guide rib is also provided at a position corresponding to the top of the arc-shaped baffle in the chamber, and the lubricating oil flowing along the arc-shaped baffle to the top thereof is guided to the oil accumulation area through the oil guide rib.

8. The electric motor according to claim 7, characterized in that The oil inlet of the oil pump assembly is arranged horizontally, and the oil guide rib is arranged at an angle to the oil inlet of the oil pump assembly.

9. The electric motor according to claim 7, characterized in that In each of the chambers, the arc-shaped baffle forms an oil baffle area on a side facing the output shaft gear, and at least one of the first oil holes is formed at a position of the partition corresponding to the oil baffle area.

10. The electric motor according to any one of claims 2 to 9, characterized in that An oil collecting structure is also provided in each of the chambers. The oil collecting structure is located above the meshing point between the intermediate shaft gear and the output shaft gear. The oil collecting structure has an oil outlet. The oil collecting structure is used to collect the lubricating oil splashed from the intermediate shaft gear and the meshing shaft gear, and spray the collected lubricating oil from the oil outlet to the intermediate shaft gear and the output shaft gear.

11. The electric motor according to any one of claims 1 to 9, characterized in that The oil pump assembly includes a suction filter and an oil pump. The suction filter is located at a position of one of the chambers corresponding to the oil accumulation area. The suction filter is used to absorb and filter the lubricating oil in the oil accumulation area and supply it to the oil pump. The oil pump is used to pump lubricating oil for each of the drive components.

12. A vehicle, characterized in that: The vehicle is applied with the electric motor according to any one of claims 1 to 11.

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